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Diffstat (limited to '')
191 files changed, 25959 insertions, 0 deletions
diff --git a/doc/Makefile.am b/doc/Makefile.am new file mode 100644 index 0000000..f4762f2 --- /dev/null +++ b/doc/Makefile.am @@ -0,0 +1,21 @@ +# +# Copyright (c) 2005, 2006 Thorsten Kukuk <kukuk@suse.de> +# + +SUBDIRS = man specs sag adg mwg + +CLEANFILES = *~ + +dist_html_DATA = index.html + +####################################################### + +releasedocs: all + $(mkinstalldirs) $(top_builddir)/Linux-PAM-$(VERSION)/doc/specs + cp -av specs/draft-morgan-pam-current.txt \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/specs/ + cp -av $(srcdir)/specs/rfc86.0.txt \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/specs/ + make -C sag releasedocs + make -C adg releasedocs + make -C mwg releasedocs diff --git a/doc/Makefile.in b/doc/Makefile.in new file mode 100644 index 0000000..1638dcf --- /dev/null +++ b/doc/Makefile.in @@ -0,0 +1,749 @@ +# Makefile.in generated by automake 1.13.4 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2013 Free Software Foundation, Inc. + +# This Makefile.in is free software; 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maintainer-clean \ + maintainer-clean-generic mostlyclean mostlyclean-generic \ + mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \ + uninstall-am uninstall-dist_htmlDATA + + +####################################################### + +releasedocs: all + $(mkinstalldirs) $(top_builddir)/Linux-PAM-$(VERSION)/doc/specs + cp -av specs/draft-morgan-pam-current.txt \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/specs/ + cp -av $(srcdir)/specs/rfc86.0.txt \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/specs/ + make -C sag releasedocs + make -C adg releasedocs + make -C mwg releasedocs + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/doc/adg/Linux-PAM_ADG.xml b/doc/adg/Linux-PAM_ADG.xml new file mode 100644 index 0000000..79452e1 --- /dev/null +++ b/doc/adg/Linux-PAM_ADG.xml @@ -0,0 +1,780 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<book id="adg"> + <bookinfo> + <title>The Linux-PAM Application Developers' Guide</title> + <authorgroup> + <author> + <firstname>Andrew G.</firstname> + <surname>Morgan</surname> + <email>morgan@kernel.org</email> + </author> + <author> + <firstname>Thorsten</firstname> + <surname>Kukuk</surname> + <email>kukuk@thkukuk.de</email> + </author> + </authorgroup> + <releaseinfo>Version 1.1.2, 31. August 2010</releaseinfo> + <abstract> + <para> + This manual documents what an application developer needs to know + about the <emphasis remap='B'>Linux-PAM</emphasis> library. It + describes how an application might use the + <emphasis remap='B'>Linux-PAM</emphasis> library to authenticate + users. In addition it contains a description of the functions + to be found in <filename>libpam_misc</filename> library, that can + be used in general applications. Finally, it contains some comments + on PAM related security issues for the application developer. + </para> + </abstract> + </bookinfo> + + <chapter id="adg-introduction"> + <title>Introduction</title> + <section id="adg-introduction-description"> + <title>Description</title> + <para> + <emphasis remap='B'>Linux-PAM</emphasis> + (Pluggable Authentication Modules for Linux) is a library that enables + the local system administrator to choose how individual applications + authenticate users. For an overview of the + <emphasis remap='B'>Linux-PAM</emphasis> library see the + <emphasis>Linux-PAM System Administrators' Guide</emphasis>. + </para> + <para> + It is the purpose of the <emphasis remap='B'>Linux-PAM</emphasis> + project to liberate the development of privilege granting software + from the development of secure and appropriate authentication schemes. + This is accomplished by providing a documented library of functions + that an application may use for all forms of user authentication + management. This library dynamically loads locally configured + authentication modules that actually perform the authentication tasks. + </para> + <para> + From the perspective of an application developer the information + contained in the local configuration of the PAM library should not be + important. Indeed it is intended that an application treat the + functions documented here as a 'black box' that will deal with all + aspects of user authentication. 'All aspects' includes user + verification, account management, session initialization/termination + and also the resetting of passwords + (<emphasis>authentication tokens</emphasis>). + </para> + </section> + + <section id="adg-introduction-synopsis"> + <title>Synopsis</title> + <para> + For general applications that wish to use the services provided by + <emphasis remap='B'>Linux-PAM</emphasis> the following is a summary + of the relevant linking information: + <programlisting> +#include <security/pam_appl.h> + +cc -o application .... -lpam + </programlisting> + </para> + <para> + In addition to <command>libpam</command>, there is a library of + miscellaneous functions that make the job of writing + <emphasis>PAM-aware</emphasis> applications easier (this library is not + covered in the DCE-RFC for PAM and is specific to the Linux-PAM + distribution): + <programlisting> +#include <security/pam_appl.h> +#include <security/pam_misc.h> + +cc -o application .... -lpam -lpam_misc + </programlisting> + </para> + </section> + </chapter> + + <chapter id="adg-overview"> + <title>Overview</title> + <para> + Most service-giving applications are restricted. In other words, + their service is not available to all and every prospective client. + Instead, the applying client must jump through a number of hoops to + convince the serving application that they are authorized to obtain + service. + </para> + <para> + The process of <emphasis>authenticating</emphasis> a client is what + PAM is designed to manage. In addition to authentication, PAM provides + account management, credential management, session management and + authentication-token (password changing) management services. It is + important to realize when writing a PAM based application that these + services are provided in a manner that is + <emphasis remap='B'>transparent</emphasis> to the application. That is + to say, when the application is written, no assumptions can be made + about <emphasis>how</emphasis> the client will be authenticated. + </para> + <para> + The process of authentication is performed by the PAM library via a + call to <function>pam_authenticate()</function>. The return value + of this function will indicate whether a named client (the + <emphasis>user</emphasis>) has been authenticated. If the PAM library + needs to prompt the user for any information, such as their + <emphasis>name</emphasis> or a <emphasis>password</emphasis> + then it will do so. If the PAM library is configured to authenticate + the user using some silent protocol, it will do this too. (This + latter case might be via some hardware interface for example.) + </para> + <para> + It is important to note that the application must leave all decisions + about when to prompt the user at the discretion of the PAM library. + </para> + <para> + The PAM library, however, must work equally well for different styles + of application. Some applications, like the familiar + <command>login</command> and <command>passwd</command> are terminal + based applications, exchanges of information with the client in + these cases is as plain text messages. Graphically based applications, + however, have a more sophisticated interface. They generally interact + with the user via specially constructed dialogue boxes. Additionally, + network based services require that text messages exchanged with the + client are specially formatted for automated processing: one such + example is <command>ftpd</command> which prefixes each exchanged + message with a numeric identifier. + </para> + <para> + The presentation of simple requests to a client is thus something very + dependent on the protocol that the serving application will use. In + spite of the fact that PAM demands that it drives the whole + authentication process, it is not possible to leave such protocol + subtleties up to the PAM library. To overcome this potential problem, + the application provides the PAM library with a + <emphasis>conversation</emphasis> function. This function is called + from <emphasis>within</emphasis> the PAM library and enables the PAM + to directly interact with the client. The sorts of things that this + conversation function must be able to do are prompt the user with + text and/or obtain textual input from the user for processing by the + PAM library. The details of this function are provided in a later + section. + </para> + <para> + For example, the conversation function may be called by the PAM + library with a request to prompt the user for a password. Its job is + to reformat the prompt request into a form that the client will + understand. In the case of <command>ftpd</command>, this might involve + prefixing the string with the number <command>331</command> and sending + the request over the network to a connected client. The conversation + function will then obtain any reply and, after extracting the typed + password, will return this string of text to the PAM library. Similar + concerns need to be addressed in the case of an X-based graphical + server. + </para> + <para> + There are a number of issues that need to be addressed when one is + porting an existing application to become PAM compliant. A section + below has been devoted to this: Porting legacy applications. + </para> + <para> + Besides authentication, PAM provides other forms of management. + Session management is provided with calls to + <function>pam_open_session()</function> and + <function>pam_close_session()</function>. What these functions + actually do is up to the local administrator. But typically, they + could be used to log entry and exit from the system or for mounting + and unmounting the user's home directory. If an application provides + continuous service for a period of time, it should probably call + these functions, first open after the user is authenticated and then + close when the service is terminated. + </para> + <para> + Account management is another area that an application developer + should include with a call to <function>pam_acct_mgmt()</function>. + This call will perform checks on the good health of the user's account + (has it expired etc.). One of the things this function may check is + whether the user's authentication token has expired - in such a case the + application may choose to attempt to update it with a call to + <function>pam_chauthtok()</function>, although some applications + are not suited to this task (<command>ftp</command> for example) + and in this case the application should deny access to the user. + </para> + <para> + PAM is also capable of setting and deleting the user's credentials with + the call <function>pam_setcred()</function>. This function should + always be called after the user is authenticated and before service + is offered to the user. By convention, this should be the last call + to the PAM library before the PAM session is opened. What exactly a + credential is, is not well defined. However, some examples are given + in the glossary below. + </para> + </chapter> + + <chapter id="adg-interface"> + <title> + The public interface to <emphasis remap='B'>Linux-PAM</emphasis> + </title> + <para> + Firstly, the relevant include file for the + <emphasis remap='B'>Linux-PAM</emphasis> library is + <function><security/pam_appl.h></function>. + It contains the definitions for a number of functions. After + listing these functions, we collect some guiding remarks for + programmers. + </para> + <section id="adg-interface-by-app-expected"> + <title>What can be expected by the application</title> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_start.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_end.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_set_item.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_get_item.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_strerror.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_fail_delay.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_authenticate.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_setcred.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_acct_mgmt.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_chauthtok.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_open_session.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_close_session.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_putenv.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_getenv.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_getenvlist.xml"/> + </section> + <section id="adg-interface-of-app-expected"> + <title>What is expected of an application</title> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_conv.xml"/> + </section> + <section id="adg-interface-programming-notes"> + <title>Programming notes</title> + <para> + Note, all of the authentication service function calls accept the + token <emphasis remap='B'>PAM_SILENT</emphasis>, which instructs + the modules to not send messages to the application. This token + can be logically OR'd with any one of the permitted tokens specific + to the individual function calls. + <emphasis remap='B'>PAM_SILENT</emphasis> does not override the + prompting of the user for passwords etc., it only stops informative + messages from being generated. + </para> + </section> + </chapter> + + <chapter id="adg-security"> + <title> + Security issues of <emphasis remap='B'>Linux-PAM</emphasis> + </title> + <para> + PAM, from the perspective of an application, is a convenient API for + authenticating users. PAM modules generally have no increased + privilege over that possessed by the application that is making use of + it. For this reason, the application must take ultimate responsibility + for protecting the environment in which PAM operates. + </para> + <para> + A poorly (or maliciously) written application can defeat any + <emphasis remap='B'>Linux-PAM</emphasis> module's authentication + mechanisms by simply ignoring it's return values. It is the + applications task and responsibility to grant privileges and access + to services. The <emphasis remap='B'>Linux-PAM</emphasis> library + simply assumes the responsibility of <emphasis>authenticating</emphasis> + the user; ascertaining that the user <emphasis>is</emphasis> who they + say they are. Care should be taken to anticipate all of the documented + behavior of the <emphasis remap='B'>Linux-PAM</emphasis> library + functions. A failure to do this will most certainly lead to a future + security breach. + </para> + + <section id="adg-security-library-calls"> + <title>Care about standard library calls</title> + <para> + In general, writers of authorization-granting applications should + assume that each module is likely to call any or + <emphasis>all</emphasis> 'libc' functions. For 'libc' functions + that return pointers to static/dynamically allocated structures + (ie. the library allocates the memory and the user is not expected + to '<function>free()</function>' it) any module call to this + function is likely to corrupt a pointer previously + obtained by the application. The application programmer should + either re-call such a 'libc' function after a call to the + <emphasis remap='B'>Linux-PAM</emphasis> library, or copy the + structure contents to some safe area of memory before passing + control to the <emphasis remap='B'>Linux-PAM</emphasis> library. + </para> + <para> + Two important function classes that fall into this category are + <citerefentry> + <refentrytitle>getpwnam</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> and <citerefentry> + <refentrytitle>syslog</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>. + </para> + </section> + + <section id="adg-security-service-name"> + <title>Choice of a service name</title> + <para> + When picking the <emphasis>service-name</emphasis> that + corresponds to the first entry in the + <emphasis remap='B'>Linux-PAM</emphasis> configuration file, + the application programmer should <emphasis>avoid</emphasis> + the temptation of choosing something related to + <varname>argv[0]</varname>. It is a trivial matter for any user + to invoke any application on a system under a different name and + this should not be permitted to cause a security breach. + </para> + <para> + In general, this is always the right advice if the program is + setuid, or otherwise more privileged than the user that invokes + it. In some cases, avoiding this advice is convenient, but as an + author of such an application, you should consider well the ways + in which your program will be installed and used. (Its often the + case that programs are not intended to be setuid, but end up + being installed that way for convenience. If your program falls + into this category, don't fall into the trap of making this mistake.) + </para> + <para> + To invoke some <emphasis>target</emphasis> application by + another name, the user may symbolically link the target application + with the desired name. To be precise all the user need do is, + <command>ln -s /target/application ./preferred_name</command> + and then run <command>./preferred_name</command>. + </para> + <para> + By studying the <emphasis remap='B'>Linux-PAM</emphasis> + configuration file(s), an attacker can choose the + <command>preferred_name</command> to be that of a service enjoying + minimal protection; for example a game which uses + <emphasis remap='B'>Linux-PAM</emphasis> to restrict access to + certain hours of the day. If the service-name were to be linked + to the filename under which the service was invoked, it + is clear that the user is effectively in the position of + dictating which authentication scheme the service uses. Needless + to say, this is not a secure situation. + </para> + <para> + The conclusion is that the application developer should carefully + define the service-name of an application. The safest thing is to + make it a single hard-wired name. + </para> + </section> + + <section id="adg-security-conv-function"> + <title>The conversation function</title> + <para> + Care should be taken to ensure that the <function>conv()</function> + function is robust. Such a function is provided in the library + <command>libpam_misc</command> (see + <link linkend="adg-libpam-functions">below</link>). + </para> + </section> + + <section id="adg-security-user-identity"> + <title>The identity of the user</title> + <para> + The <emphasis remap='B'>Linux-PAM</emphasis> modules will need + to determine the identity of the user who requests a service, + and the identity of the user who grants the service. These two + users will seldom be the same. Indeed there is generally a third + user identity to be considered, the new (assumed) identity of + the user once the service is granted. + </para> + <para> + The need for keeping tabs on these identities is clearly an + issue of security. One convention that is actively used by + some modules is that the identity of the user requesting a + service should be the current <emphasis>UID</emphasis> + (user ID) of the running process; the identity of the + privilege granting user is the <emphasis>EUID</emphasis> + (effective user ID) of the running process; the identity of + the user, under whose name the service will be executed, is + given by the contents of the <emphasis>PAM_USER</emphasis> + <citerefentry> + <refentrytitle>pam_get_item</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>. Note, modules can change the values of + <emphasis>PAM_USER</emphasis> and <emphasis>PAM_RUSER</emphasis> + during any of the <function>pam_*()</function> library calls. + For this reason, the application should take care to use the + <function>pam_get_item()</function> every time it wishes to + establish who the authenticated user is (or will currently be). + </para> + <para> + For network-serving databases and other applications that provide + their own security model (independent of the OS kernel) the above + scheme is insufficient to identify the requesting user. + </para> + <para> + A more portable solution to storing the identity of the requesting + user is to use the <emphasis>PAM_RUSER</emphasis> <citerefentry> + <refentrytitle>pam_get_item</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>. The application should supply this value before + attempting to authenticate the user with + <function>pam_authenticate()</function>. How well this name can be + trusted will ultimately be at the discretion of the local + administrator (who configures PAM for your application) and a + selected module may attempt to override the value where it can + obtain more reliable data. If an application is unable to determine + the identity of the requesting entity/user, it should not call + <citerefentry> + <refentrytitle>pam_set_item</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> to set <emphasis>PAM_RUSER</emphasis>. + </para> + <para> + In addition to the <emphasis>PAM_RUSER</emphasis> item, the + application should supply the <emphasis>PAM_RHOST</emphasis> + (<emphasis>requesting host</emphasis>) item. As a general rule, + the following convention for its value can be assumed: + NULL = unknown; localhost = invoked directly from the local system; + <emphasis>other.place.xyz</emphasis> = some component of the + user's connection originates from this remote/requesting host. At + present, PAM has no established convention for indicating whether + the application supports a trusted path to communication from + this host. + </para> + </section> + + <section id="adg-security-resources"> + <title>Sufficient resources</title> + <para> + Care should be taken to ensure that the proper execution of an + application is not compromised by a lack of system resources. If an + application is unable to open sufficient files to perform its service, + it should fail gracefully, or request additional resources. + Specifically, the quantities manipulated by the <citerefentry> + <refentrytitle>setrlimit</refentrytitle><manvolnum>2</manvolnum> + </citerefentry> family of commands should be taken into consideration. + </para> + <para> + This is also true of conversation prompts. The application should not + accept prompts of arbitrary length with out checking for resource + allocation failure and dealing with such extreme conditions gracefully + and in a manner that preserves the PAM API. Such tolerance may be + especially important when attempting to track a malicious adversary. + </para> + </section> + </chapter> + + <chapter id='adg-libpam_misc'> + <title>A library of miscellaneous helper functions</title> + <para> + To aid the work of the application developer a library of + miscellaneous functions is provided. It is called + <command>libpam_misc</command>, and contains a text based + conversation function, and routines for enhancing the standard + PAM-environment variable support. + </para> + <para> + The functions, structures and macros, made available by this + library can be defined by including + <function><security/pam_misc.h></function>. It should be + noted that this library is specific to + <emphasis remap='B'>Linux-PAM</emphasis> and is not referred to in + the defining DCE-RFC (see <link linkend="adg-see-also">See also</link>) + below. + </para> + <section id='adg-libpam-functions'> + <title>Functions supplied</title> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_misc_conv.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_misc_paste_env.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_misc_drop_env.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_misc_setenv.xml"/> + </section> + </chapter> + + <chapter id='adg-porting'> + <title>Porting legacy applications</title> + <para> + The point of PAM is that the application is not supposed to + have any idea how the attached authentication modules will choose + to authenticate the user. So all they can do is provide a conversation + function that will talk directly to the user(client) on the modules' + behalf. + </para> + <para> + Consider the case that you plug a retinal scanner into the login + program. In this situation the user would be prompted: "please look + into the scanner". No username or password would be needed - all this + information could be deduced from the scan and a database lookup. The + point is that the retinal scanner is an ideal task for a "module". + </para> + <para> + While it is true that a pop-daemon program is designed with the POP + protocol in mind and no-one ever considered attaching a retinal + scanner to it, it is also the case that the "clean" PAM'ification of + such a daemon would allow for the possibility of a scanner module + being be attached to it. The point being that the "standard" + pop-authentication protocol(s) [which will be needed to satisfy + inflexible/legacy clients] would be supported by inserting an + appropriate pam_qpopper module(s). However, having rewritten + <command>popd</command> once in this way any new protocols can be + implemented in-situ. + </para> + <para> + One simple test of a ported application would be to insert the + <command>pam_permit</command> module and see if the application + demands you type a password... In such a case, <command>xlock</command> + would fail to lock the terminal - or would at best be a screen-saver, + ftp would give password free access to all etc.. Neither of + these is a very secure thing to do, but they do illustrate how + much flexibility PAM puts in the hands of the local admin. + </para> + <para> + The key issue, in doing things correctly, is identifying what is part + of the authentication procedure (how many passwords etc..) the + exchange protocol (prefixes to prompts etc., numbers like 331 in the + case of ftpd) and what is part of the service that the application + delivers. PAM really needs to have total control in the + authentication "procedure", the conversation function should only + deal with reformatting user prompts and extracting responses from raw + input. + </para> + </chapter> + + <chapter id='adg-glossary'> + <title>Glossary of PAM related terms</title> + <para> + The following are a list of terms used within this document. + </para> + <variablelist> + <varlistentry> + <term>Authentication token</term> + <listitem> + <para> + Generally, this is a password. However, a user can authenticate + him/herself in a variety of ways. Updating the user's + authentication token thus corresponds to + <emphasis>refreshing</emphasis> the object they use to + authenticate themself with the system. The word password is + avoided to keep open the possibility that the authentication + involves a retinal scan or other non-textual mode of + challenge/response. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>Credentials</term> + <listitem> + <para> + Having successfully authenticated the user, PAM is able to + establish certain characteristics/attributes of the user. + These are termed <emphasis>credentials</emphasis>. Examples + of which are group memberships to perform privileged tasks + with, and <emphasis>tickets</emphasis> in the form of + environment variables etc. . Some user-credentials, such as + the user's UID and GID (plus default group memberships) are + not deemed to be PAM-credentials. It is the responsibility + of the application to grant these directly. + </para> + </listitem> + </varlistentry> + </variablelist> + </chapter> + + <chapter id='adg-example'> + <title>An example application</title> + <para> + To get a flavor of the way a <emphasis remap='B'>Linux-PAM</emphasis> + application is written we include the following example. It prompts + the user for their password and indicates whether their account + is valid on the standard output, its return code also indicates + the success (<returnvalue>0</returnvalue> for success; + <returnvalue>1</returnvalue> for failure). + </para> + <programlisting><![CDATA[ +/* + This program was contributed by Shane Watts + [modifications by AGM and kukuk] + + You need to add the following (or equivalent) to the + /etc/pam.d/check_user file: + # check authorization + auth required pam_unix.so + account required pam_unix.so + */ + +#include <security/pam_appl.h> +#include <security/pam_misc.h> +#include <stdio.h> + +static struct pam_conv conv = { + misc_conv, + NULL +}; + +int main(int argc, char *argv[]) +{ + pam_handle_t *pamh=NULL; + int retval; + const char *user="nobody"; + + if(argc == 2) { + user = argv[1]; + } + + if(argc > 2) { + fprintf(stderr, "Usage: check_user [username]\n"); + exit(1); + } + + retval = pam_start("check_user", user, &conv, &pamh); + + if (retval == PAM_SUCCESS) + retval = pam_authenticate(pamh, 0); /* is user really user? */ + + if (retval == PAM_SUCCESS) + retval = pam_acct_mgmt(pamh, 0); /* permitted access? */ + + /* This is where we have been authorized or not. */ + + if (retval == PAM_SUCCESS) { + fprintf(stdout, "Authenticated\n"); + } else { + fprintf(stdout, "Not Authenticated\n"); + } + + if (pam_end(pamh,retval) != PAM_SUCCESS) { /* close Linux-PAM */ + pamh = NULL; + fprintf(stderr, "check_user: failed to release authenticator\n"); + exit(1); + } + + return ( retval == PAM_SUCCESS ? 0:1 ); /* indicate success */ +} +]]> + </programlisting> + </chapter> + + <chapter id='adg-files'> + <title>Files</title> + <variablelist> + <varlistentry> + <term><filename>/usr/include/security/pam_appl.h</filename></term> + <listitem> + <para> + Header file with interfaces for + <emphasis remap='B'>Linux-PAM</emphasis> applications. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term><filename>/usr/include/security/pam_misc.h</filename></term> + <listitem> + <para> + Header file for useful library functions for making + applications easier to write. + </para> + </listitem> + </varlistentry> + </variablelist> + </chapter> + + <chapter id="adg-see-also"> + <title>See also</title> + <itemizedlist> + <listitem> + <para> + The Linux-PAM System Administrators' Guide. + </para> + </listitem> + <listitem> + <para> + The Linux-PAM Module Writers' Guide. + </para> + </listitem> + <listitem> + <para> + The V. Samar and R. Schemers (SunSoft), ``UNIFIED LOGIN WITH + PLUGGABLE AUTHENTICATION MODULES'', Open Software Foundation + Request For Comments 86.0, October 1995. + </para> + </listitem> + </itemizedlist> + </chapter> + + <chapter id='adg-author'> + <title>Author/acknowledgments</title> + <para> + This document was written by Andrew G. Morgan (morgan@kernel.org) + with many contributions from + Chris Adams, Peter Allgeyer, Tim Baverstock, Tim Berger, Craig S. Bell, + Derrick J. Brashear, Ben Buxton, Seth Chaiklin, Oliver Crow, Chris Dent, + Marc Ewing, Cristian Gafton, Emmanuel Galanos, Brad M. Garcia, + Eric Hester, Roger Hu, Eric Jacksch, Michael K. Johnson, David Kinchlea, + Olaf Kirch, Marcin Korzonek, Thorsten Kukuk, Stephen Langasek, + Nicolai Langfeldt, Elliot Lee, Luke Kenneth Casson Leighton, + Al Longyear, Ingo Luetkebohle, Marek Michalkiewicz, Robert Milkowski, + Aleph One, Martin Pool, Sean Reifschneider, Jan Rekorajski, Erik Troan, + Theodore Ts'o, Jeff Uphoff, Myles Uyema, Savochkin Andrey Vladimirovich, + Ronald Wahl, David Wood, John Wilmes, Joseph S. D. Yao + and Alex O. Yuriev. + </para> + <para> + Thanks are also due to Sun Microsystems, especially to Vipin Samar and + Charlie Lai for their advice. At an early stage in the development of + <emphasis remap='B'>Linux-PAM</emphasis>, Sun graciously made the + documentation for their implementation of PAM available. This act + greatly accelerated the development of + <emphasis remap='B'>Linux-PAM</emphasis>. + </para> + </chapter> + + <chapter id='adg-copyright'> + <title>Copyright information for this document</title> + <programlisting> +Copyright (c) 2006 Thorsten Kukuk <kukuk@thkukuk.de> +Copyright (c) 1996-2002 Andrew G. Morgan <morgan@kernel.org> + </programlisting> + <para> + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are + met: + </para> + <programlisting> +1. Redistributions of source code must retain the above copyright + notice, and the entire permission notice in its entirety, + including the disclaimer of warranties. + +2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + +3. The name of the author may not be used to endorse or promote + products derived from this software without specific prior + written permission. + </programlisting> + <para> + Alternatively, this product may be distributed under the terms of + the GNU General Public License (GPL), in which case the provisions + of the GNU GPL are required instead of the above restrictions. + (This clause is necessary due to a potential bad interaction between + the GNU GPL and the restrictions contained in a BSD-style copyright.) + </para> + <programlisting> +THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED +WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, +INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, +BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS +OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR +TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE +USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + </programlisting> + </chapter> +</book> diff --git a/doc/adg/Makefile.am b/doc/adg/Makefile.am new file mode 100644 index 0000000..77bd7a9 --- /dev/null +++ b/doc/adg/Makefile.am @@ -0,0 +1,113 @@ +# +# Copyright (c) 2006 Thorsten Kukuk <kukuk@thkukuk.de> +# + +CLEANFILES = Linux-PAM_ADG.fo *~ + +EXTRA_DIST = $(XMLS) + +XMLS = Linux-PAM_ADG.xml $(shell ls $(srcdir)/pam_*.xml) +DEP_XMLS = $(shell ls $(top_srcdir)/doc/man/pam_*.xml) + +if ENABLE_REGENERATE_MAN +MAINTAINERCLEANFILES = Linux-PAM_ADG.txt Linux-PAM_ADG.pdf html/*.html + +all: Linux-PAM_ADG.txt html/Linux-PAM_ADG.html Linux-PAM_ADG.pdf + +Linux-PAM_ADG.pdf: $(XMLS) $(DEP_XMLS) +if ENABLE_GENERATE_PDF + $(XMLLINT) --nonet --xinclude --postvalid --noent --noout $< + $(XSLTPROC) --stringparam generate.toc "book toc" \ + --stringparam section.autolabel 1 \ + --stringparam section.label.includes.component.label 1 \ + --stringparam toc.max.depth 3 --xinclude --nonet \ + http://docbook.sourceforge.net/release/xsl/current/fo/docbook.xsl $< > Linux-PAM_ADG.fo + $(FO2PDF) Linux-PAM_ADG.fo $@ +else + echo "No fo2pdf processor installed, skip PDF generation" +endif + +Linux-PAM_ADG.txt: $(XMLS) $(DEP_XMLS) + $(XMLLINT) --nonet --xinclude --postvalid --noent --noout $< + $(XSLTPROC) --stringparam generate.toc "book toc" \ + --stringparam section.autolabel 1 \ + --stringparam section.label.includes.component.label 1 \ + --stringparam toc.max.depth 3 --xinclude --nonet \ + http://docbook.sourceforge.net/release/xsl/current/html/docbook.xsl $< | $(BROWSER) > $@ + +html/Linux-PAM_ADG.html: $(XMLS) $(DEP_XMLS) + @test -d html || mkdir -p html + $(XMLLINT) --nonet --xinclude --postvalid --noent --noout $< + $(XSLTPROC) --stringparam base.dir html/ \ + --stringparam root.filename Linux-PAM_ADG \ + --stringparam use.id.as.filename 1 \ + --stringparam chunk.first.sections 1 \ + --stringparam section.autolabel 1 \ + --stringparam section.label.includes.component.label 1 \ + --stringparam toc.max.depth 3 --xinclude --nonet \ + --stringparam chunker.output.encoding UTF-8 \ + http://docbook.sourceforge.net/release/xsl/current/html/chunk.xsl $< + +distclean-local: + -rm -rf html Linux-PAM_ADG.txt Linux-PAM_ADG.pdf + +endif + +install-data-local: + $(mkinstalldirs) $(DESTDIR)$(docdir) + $(mkinstalldirs) $(DESTDIR)$(pdfdir) + $(mkinstalldirs) $(DESTDIR)$(htmldir) + if test -f html/Linux-PAM_ADG.html; then \ + $(install_sh_DATA) html/Linux-PAM_ADG.html html/adg-*.html \ + $(DESTDIR)$(htmldir)/; \ + elif test -f $(srcdir)/html/Linux-PAM_ADG.html; then \ + $(install_sh_DATA) $(srcdir)/html/Linux-PAM_ADG.html \ + $(srcdir)/html/adg-*.html \ + $(DESTDIR)$(htmldir)/; \ + fi + if test -f Linux-PAM_ADG.txt; then \ + $(install_sh_DATA) Linux-PAM_ADG.txt $(DESTDIR)$(docdir)/; \ + elif test -f $(srcdir)/Linux-PAM_ADG.txt; then \ + $(install_sh_DATA) $(srcdir)/Linux-PAM_ADG.txt \ + $(DESTDIR)$(docdir)/; \ + fi + if test -f Linux-PAM_ADG.pdf; then \ + $(install_sh_DATA) Linux-PAM_ADG.pdf $(DESTDIR)$(pdfdir)/; \ + elif test -f $(srcdir)/Linux-PAM_ADG.pdf; then \ + $(install_sh_DATA) $(srcdir)/Linux-PAM_ADG.pdf \ + $(DESTDIR)$(pdfdir)/; \ + fi + +uninstall-local: + -rm $(DESTDIR)$(htmldir)/Linux-PAM_ADG.html + -rm $(DESTDIR)$(htmldir)/adg-*.html + -rm $(DESTDIR)$(docdir)/Linux-PAM_ADG.txt + -rm $(DESTDIR)$(pdfdir)/Linux-PAM_ADG.pdf + +releasedocs: all + $(mkinstalldirs) $(top_builddir)/Linux-PAM-$(VERSION)/doc/adg/html + if test -f html/Linux-PAM_ADG.html; then \ + cp -ap html/Linux-PAM_ADG.html html/adg-*.html \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/adg/html/; \ + elif test -f $(srcdir)/html/Linux-PAM_ADG.html; then \ + cp -ap $(srcdir)/html/Linux-PAM_ADG.html \ + $(srcdir)/html/adg-*.html \ + 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--stringparam toc.max.depth 3 --xinclude --nonet \ +@ENABLE_REGENERATE_MAN_TRUE@ http://docbook.sourceforge.net/release/xsl/current/html/docbook.xsl $< | $(BROWSER) > $@ + +@ENABLE_REGENERATE_MAN_TRUE@html/Linux-PAM_ADG.html: $(XMLS) $(DEP_XMLS) +@ENABLE_REGENERATE_MAN_TRUE@ @test -d html || mkdir -p html +@ENABLE_REGENERATE_MAN_TRUE@ $(XMLLINT) --nonet --xinclude --postvalid --noent --noout $< +@ENABLE_REGENERATE_MAN_TRUE@ $(XSLTPROC) --stringparam base.dir html/ \ +@ENABLE_REGENERATE_MAN_TRUE@ --stringparam root.filename Linux-PAM_ADG \ +@ENABLE_REGENERATE_MAN_TRUE@ --stringparam use.id.as.filename 1 \ +@ENABLE_REGENERATE_MAN_TRUE@ --stringparam chunk.first.sections 1 \ +@ENABLE_REGENERATE_MAN_TRUE@ --stringparam section.autolabel 1 \ +@ENABLE_REGENERATE_MAN_TRUE@ --stringparam section.label.includes.component.label 1 \ +@ENABLE_REGENERATE_MAN_TRUE@ --stringparam toc.max.depth 3 --xinclude --nonet \ +@ENABLE_REGENERATE_MAN_TRUE@ --stringparam chunker.output.encoding UTF-8 \ +@ENABLE_REGENERATE_MAN_TRUE@ http://docbook.sourceforge.net/release/xsl/current/html/chunk.xsl $< + +@ENABLE_REGENERATE_MAN_TRUE@distclean-local: +@ENABLE_REGENERATE_MAN_TRUE@ -rm -rf html Linux-PAM_ADG.txt Linux-PAM_ADG.pdf + +install-data-local: + $(mkinstalldirs) $(DESTDIR)$(docdir) + $(mkinstalldirs) $(DESTDIR)$(pdfdir) + $(mkinstalldirs) $(DESTDIR)$(htmldir) + if test -f html/Linux-PAM_ADG.html; then \ + $(install_sh_DATA) html/Linux-PAM_ADG.html html/adg-*.html \ + $(DESTDIR)$(htmldir)/; \ + elif test -f $(srcdir)/html/Linux-PAM_ADG.html; then \ + $(install_sh_DATA) $(srcdir)/html/Linux-PAM_ADG.html \ + $(srcdir)/html/adg-*.html \ + $(DESTDIR)$(htmldir)/; \ + fi + if test -f Linux-PAM_ADG.txt; then \ + $(install_sh_DATA) Linux-PAM_ADG.txt $(DESTDIR)$(docdir)/; \ + elif test -f $(srcdir)/Linux-PAM_ADG.txt; then \ + $(install_sh_DATA) $(srcdir)/Linux-PAM_ADG.txt \ + $(DESTDIR)$(docdir)/; \ + fi + if test -f Linux-PAM_ADG.pdf; then \ + $(install_sh_DATA) Linux-PAM_ADG.pdf $(DESTDIR)$(pdfdir)/; \ + elif test -f $(srcdir)/Linux-PAM_ADG.pdf; then \ + $(install_sh_DATA) $(srcdir)/Linux-PAM_ADG.pdf \ + $(DESTDIR)$(pdfdir)/; \ + fi + +uninstall-local: + -rm $(DESTDIR)$(htmldir)/Linux-PAM_ADG.html + -rm $(DESTDIR)$(htmldir)/adg-*.html + -rm $(DESTDIR)$(docdir)/Linux-PAM_ADG.txt + -rm $(DESTDIR)$(pdfdir)/Linux-PAM_ADG.pdf + +releasedocs: all + $(mkinstalldirs) $(top_builddir)/Linux-PAM-$(VERSION)/doc/adg/html + if test -f html/Linux-PAM_ADG.html; then \ + cp -ap html/Linux-PAM_ADG.html html/adg-*.html \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/adg/html/; \ + elif test -f $(srcdir)/html/Linux-PAM_ADG.html; then \ + cp -ap $(srcdir)/html/Linux-PAM_ADG.html \ + $(srcdir)/html/adg-*.html \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/adg/html/; \ + else exit 1; \ + fi + if test -f Linux-PAM_ADG.txt; then \ + cp -p Linux-PAM_ADG.txt \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/adg/; \ + elif test -f $(srcdir)/Linux-PAM_ADG.txt; then \ + cp -p $(srcdir)/Linux-PAM_ADG.txt \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/adg/; \ + else exit 1; \ + fi + if test -f Linux-PAM_ADG.pdf; then \ + cp -p Linux-PAM_ADG.pdf \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/adg/; \ + elif test -f $(srcdir)/Linux-PAM_ADG.pdf; then \ + cp -p $(srcdir)/Linux-PAM_ADG.pdf \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/adg/; \ + else exit 1; \ + fi + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/doc/adg/pam_acct_mgmt.xml b/doc/adg/pam_acct_mgmt.xml new file mode 100644 index 0000000..6a3a37d --- /dev/null +++ b/doc/adg/pam_acct_mgmt.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='adg-pam_acct_mgmt'> + <title>Account validation management</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_acct_mgmt.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_acct_mgmt-synopsis"]/*)'/> + </funcsynopsis> + <section id='adg-pam_acct_mgmt-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_acct_mgmt.3.xml" xpointer='xpointer(//refsect1[@id = "pam_acct_mgmt-description"]/*)'/> + </section> + <section id='adg-pam_acct_mgmt-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_acct_mgmt.3.xml" xpointer='xpointer(//refsect1[@id = "pam_acct_mgmt-return_values"]/*)'/> + </section> +</section> diff --git a/doc/adg/pam_authenticate.xml b/doc/adg/pam_authenticate.xml new file mode 100644 index 0000000..2ca9b54 --- /dev/null +++ b/doc/adg/pam_authenticate.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='adg-pam_authenticate'> + <title>Authenticating the user</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_authenticate.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_authenticate-synopsis"]/*)'/> + </funcsynopsis> + <section id='adg-pam_authenticate-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_authenticate.3.xml" xpointer='xpointer(//refsect1[@id = "pam_authenticate-description"]/*)'/> + </section> + <section id='adg-pam_authenticate-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_authenticate.3.xml" xpointer='xpointer(//refsect1[@id = "pam_authenticate-return_values"]/*)'/> + </section> +</section> diff --git a/doc/adg/pam_chauthtok.xml b/doc/adg/pam_chauthtok.xml new file mode 100644 index 0000000..1c613da --- /dev/null +++ b/doc/adg/pam_chauthtok.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='adg-pam_chauthtok'> + <title>Updating authentication tokens</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_chauthtok.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_chauthtok-synopsis"]/*)'/> + </funcsynopsis> + <section id='adg-pam_chauthtok-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_chauthtok.3.xml" xpointer='xpointer(//refsect1[@id = "pam_chauthtok-description"]/*)'/> + </section> + <section id='adg-pam_chauthtok-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_chauthtok.3.xml" xpointer='xpointer(//refsect1[@id = "pam_chauthtok-return_values"]/*)'/> + </section> +</section> diff --git a/doc/adg/pam_close_session.xml b/doc/adg/pam_close_session.xml new file mode 100644 index 0000000..4b93fc3 --- /dev/null +++ b/doc/adg/pam_close_session.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='adg-pam_close_session'> + <title>terminating PAM session management</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_close_session.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_close_session-synopsis"]/*)'/> + </funcsynopsis> + <section id='adg-pam_close_session-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_close_session.3.xml" xpointer='xpointer(//refsect1[@id = "pam_close_session-description"]/*)'/> + </section> + <section id='adg-pam_close_session-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_close_session.3.xml" xpointer='xpointer(//refsect1[@id = "pam_close_session-return_values"]/*)'/> + </section> +</section> diff --git a/doc/adg/pam_conv.xml b/doc/adg/pam_conv.xml new file mode 100644 index 0000000..01b7512 --- /dev/null +++ b/doc/adg/pam_conv.xml @@ -0,0 +1,35 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='adg-pam_conv'> + <title>The conversation function</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_conv.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_conv-synopsis"]/*)'/> + </funcsynopsis> + <programlisting> +struct pam_message { + int msg_style; + const char *msg; +}; + +struct pam_response { + char *resp; + int resp_retcode; +}; + +struct pam_conv { + int (*conv)(int num_msg, const struct pam_message **msg, + struct pam_response **resp, void *appdata_ptr); + void *appdata_ptr; +}; + </programlisting> + <section id='adg-pam_conv-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_conv.3.xml" xpointer='xpointer(//refsect1[@id = "pam_conv-description"]/*)'/> + </section> + <section id='adg-pam_conv-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_conv.3.xml" xpointer='xpointer(//refsect1[@id = "pam_conv-return_values"]/*)'/> + </section> +</section> diff --git a/doc/adg/pam_end.xml b/doc/adg/pam_end.xml new file mode 100644 index 0000000..efa328b --- /dev/null +++ b/doc/adg/pam_end.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='adg-pam_end'> + <title>Termination of PAM transaction</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_end.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_end-synopsis"]/*)'/> + </funcsynopsis> + <section id='adg-pam_end-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_end.3.xml" xpointer='xpointer(//refsect1[@id = "pam_end-description"]/*)'/> + </section> + <section id='adg-pam_end-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_end.3.xml" xpointer='xpointer(//refsect1[@id = "pam_end-return_values"]/*)'/> + </section> +</section> diff --git a/doc/adg/pam_fail_delay.xml b/doc/adg/pam_fail_delay.xml new file mode 100644 index 0000000..589e114 --- /dev/null +++ b/doc/adg/pam_fail_delay.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='adg-pam_fail_delay'> + <title>Request a delay on failure</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_fail_delay.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_fail_delay-synopsis"]/*)'/> + </funcsynopsis> + <section id='adg-pam_fail_delay-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_fail_delay.3.xml" xpointer='xpointer(//refsect1[@id = "pam_fail_delay-description"]/*)'/> + </section> + <section id='adg-pam_fail_delay-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_fail_delay.3.xml" xpointer='xpointer(//refsect1[@id = "pam_fail_delay-return_values"]/*)'/> + </section> +</section> diff --git a/doc/adg/pam_get_item.xml b/doc/adg/pam_get_item.xml new file mode 100644 index 0000000..f23c734 --- /dev/null +++ b/doc/adg/pam_get_item.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='adg-pam_get_item'> + <title>Getting PAM items</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_get_item.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_get_item-synopsis"]/*)'/> + </funcsynopsis> + <section id='adg-pam_get_item-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_get_item.3.xml" xpointer='xpointer(//refsect1[@id = "pam_get_item-description"]/*)'/> + </section> + <section id='adg-pam_get_item-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_get_item.3.xml" xpointer='xpointer(//refsect1[@id = "pam_get_item-return_values"]/*)'/> + </section> +</section> diff --git a/doc/adg/pam_getenv.xml b/doc/adg/pam_getenv.xml new file mode 100644 index 0000000..61d69c3 --- /dev/null +++ b/doc/adg/pam_getenv.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='adg-pam_getenv'> + <title>Get a PAM environment variable</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_getenv.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_getenv-synopsis"]/*)'/> + </funcsynopsis> + <section id='adg-pam_getenv-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_getenv.3.xml" xpointer='xpointer(//refsect1[@id = "pam_getenv-description"]/*)'/> + </section> + <section id='adg-pam_getenv-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_getenv.3.xml" xpointer='xpointer(//refsect1[@id = "pam_getenv-return_values"]/*)'/> + </section> +</section> diff --git a/doc/adg/pam_getenvlist.xml b/doc/adg/pam_getenvlist.xml new file mode 100644 index 0000000..d3c2fcd --- /dev/null +++ b/doc/adg/pam_getenvlist.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='adg-pam_getenvlist'> + <title>Getting the PAM environment</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_getenvlist.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_getenvlist-synopsis"]/*)'/> + </funcsynopsis> + <section id='adg-pam_getenvlist-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_getenvlist.3.xml" xpointer='xpointer(//refsect1[@id = "pam_getenvlist-description"]/*)'/> + </section> + <section id='adg-pam_getenvlist-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_getenvlist.3.xml" xpointer='xpointer(//refsect1[@id = "pam_getenvlist-return_values"]/*)'/> + </section> +</section> diff --git a/doc/adg/pam_misc_conv.xml b/doc/adg/pam_misc_conv.xml new file mode 100644 index 0000000..2dc760c --- /dev/null +++ b/doc/adg/pam_misc_conv.xml @@ -0,0 +1,14 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='adg-misc_conv'> + <title>Text based conversation function</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/misc_conv.3.xml" xpointer='xpointer(//funcsynopsis[@id = "misc_conv-synopsis"]/*)'/> + </funcsynopsis> + <section id='adg-misc_conv-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/misc_conv.3.xml" xpointer='xpointer(//refsect1[@id = "misc_conv-description"]/*)'/> + </section> +</section> diff --git a/doc/adg/pam_misc_drop_env.xml b/doc/adg/pam_misc_drop_env.xml new file mode 100644 index 0000000..956d481 --- /dev/null +++ b/doc/adg/pam_misc_drop_env.xml @@ -0,0 +1,14 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='adg-pam_misc_drop_env'> + <title>Liberating a locally saved environment</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_misc_drop_env.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_misc_drop_env-synopsis"]/*)'/> + </funcsynopsis> + <section id='adg-pam_misc_drop_env-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_misc_drop_env.3.xml" xpointer='xpointer(//refsect1[@id = "pam_misc_drop_env-description"]/*)'/> + </section> +</section> diff --git a/doc/adg/pam_misc_paste_env.xml b/doc/adg/pam_misc_paste_env.xml new file mode 100644 index 0000000..c6d3856 --- /dev/null +++ b/doc/adg/pam_misc_paste_env.xml @@ -0,0 +1,14 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='adg-pam_misc_paste_env'> + <title>Transcribing an environment to that of PAM</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_misc_paste_env.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_misc_paste_env-synopsis"]/*)'/> + </funcsynopsis> + <section id='adg-pam_misc_paste_env-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_misc_paste_env.3.xml" xpointer='xpointer(//refsect1[@id = "pam_misc_paste_env-description"]/*)'/> + </section> +</section> diff --git a/doc/adg/pam_misc_setenv.xml b/doc/adg/pam_misc_setenv.xml new file mode 100644 index 0000000..3b1a32e --- /dev/null +++ b/doc/adg/pam_misc_setenv.xml @@ -0,0 +1,14 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='adg-pam_misc_setenv'> + <title>BSD like PAM environment variable setting</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_misc_setenv.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_misc_setenv-synopsis"]/*)'/> + </funcsynopsis> + <section id='adg-pam_misc_setenv-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_misc_setenv.3.xml" xpointer='xpointer(//refsect1[@id = "pam_misc_setenv-description"]/*)'/> + </section> +</section> diff --git a/doc/adg/pam_open_session.xml b/doc/adg/pam_open_session.xml new file mode 100644 index 0000000..ba738a5 --- /dev/null +++ b/doc/adg/pam_open_session.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='adg-pam_open_session'> + <title>Start PAM session management</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_open_session.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_open_session-synopsis"]/*)'/> + </funcsynopsis> + <section id='adg-pam_open_session-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_open_session.3.xml" xpointer='xpointer(//refsect1[@id = "pam_open_session-description"]/*)'/> + </section> + <section id='adg-pam_open_session-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_open_session.3.xml" xpointer='xpointer(//refsect1[@id = "pam_open_session-return_values"]/*)'/> + </section> +</section> diff --git a/doc/adg/pam_putenv.xml b/doc/adg/pam_putenv.xml new file mode 100644 index 0000000..e55f1a4 --- /dev/null +++ b/doc/adg/pam_putenv.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='adg-pam_putenv'> + <title>Set or change PAM environment variable</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_putenv.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_putenv-synopsis"]/*)'/> + </funcsynopsis> + <section id='adg-pam_putenv-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_putenv.3.xml" xpointer='xpointer(//refsect1[@id = "pam_putenv-description"]/*)'/> + </section> + <section id='adg-pam_putenv-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_putenv.3.xml" xpointer='xpointer(//refsect1[@id = "pam_putenv-return_values"]/*)'/> + </section> +</section> diff --git a/doc/adg/pam_set_item.xml b/doc/adg/pam_set_item.xml new file mode 100644 index 0000000..4116938 --- /dev/null +++ b/doc/adg/pam_set_item.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='adg-pam_set_item'> + <title>Setting PAM items</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_set_item.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_set_item-synopsis"]/*)'/> + </funcsynopsis> + <section id='adg-pam_set_item-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_set_item.3.xml" xpointer='xpointer(//refsect1[@id = "pam_set_item-description"]/*)'/> + </section> + <section id='adg-pam_set_item-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_set_item.3.xml" xpointer='xpointer(//refsect1[@id = "pam_set_item-return_values"]/*)'/> + </section> +</section> diff --git a/doc/adg/pam_setcred.xml b/doc/adg/pam_setcred.xml new file mode 100644 index 0000000..1d3d23c --- /dev/null +++ b/doc/adg/pam_setcred.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='adg-pam_setcred'> + <title>Setting user credentials</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_setcred.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_setcred-synopsis"]/*)'/> + </funcsynopsis> + <section id='adg-pam_setcred-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_setcred.3.xml" xpointer='xpointer(//refsect1[@id = "pam_setcred-description"]/*)'/> + </section> + <section id='adg-pam_setcred-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_setcred.3.xml" xpointer='xpointer(//refsect1[@id = "pam_setcred-return_values"]/*)'/> + </section> +</section> diff --git a/doc/adg/pam_start.xml b/doc/adg/pam_start.xml new file mode 100644 index 0000000..e5ec848 --- /dev/null +++ b/doc/adg/pam_start.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='adg-pam_start'> + <title>Initialization of PAM transaction</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_start.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_start-synopsis"]/*)'/> + </funcsynopsis> + <section id='adg-pam_start-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_start.3.xml" xpointer='xpointer(//refsect1[@id = "pam_start-description"]/*)'/> + </section> + <section id='adg-pam_start-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_start.3.xml" xpointer='xpointer(//refsect1[@id = "pam_start-return_values"]/*)'/> + </section> +</section> diff --git a/doc/adg/pam_strerror.xml b/doc/adg/pam_strerror.xml new file mode 100644 index 0000000..35b08a2 --- /dev/null +++ b/doc/adg/pam_strerror.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='adg-pam_strerror'> + <title>Strings describing PAM error codes</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_strerror.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_strerror-synopsis"]/*)'/> + </funcsynopsis> + <section id='adg-pam_strerror-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_strerror.3.xml" xpointer='xpointer(//refsect1[@id = "pam_strerror-description"]/*)'/> + </section> + <section id='adg-pam_strerror-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_strerror.3.xml" xpointer='xpointer(//refsect1[@id = "pam_strerror-return_values"]/*)'/> + </section> +</section> diff --git a/doc/index.html b/doc/index.html new file mode 100644 index 0000000..9afc8b7 --- /dev/null +++ b/doc/index.html @@ -0,0 +1,21 @@ +<html> + <head> + <title>The Linux-PAM Administration and Developer Guides</title> + </head> + <body> + <center> + <h1>The Linux-PAM Guides</h1> + </center> + <hr> + <p> + Here is the documentation for Linux-PAM. As you will see it is + currently not complete. + <p> + <ul> + <li> <a href="Linux-PAM_SAG.html">The System Administrators' Guide</a> + <li> <a href="Linux-PAM_MWG.html">The Module Writers' Guide</a> + <li> <a href="Linux-PAM_ADG.html">The Application Developers' Guide</a> + </ul> + <hr> + </body> +</html>
\ No newline at end of file diff --git a/doc/man/Makefile.am b/doc/man/Makefile.am new file mode 100644 index 0000000..78c891d --- /dev/null +++ b/doc/man/Makefile.am @@ -0,0 +1,63 @@ +# +# Copyright (c) 2006, 2007 Thorsten Kukuk <kukuk@thkukuk.de> +# + +CLEANFILES = *~ +MAINTAINERCLEANFILES = $(MANS) + +EXTRA_DIST = $(MANS) $(XMLS) + +man_MANS = pam.3 PAM.8 pam.8 pam.conf.5 pam.d.5 \ + pam_acct_mgmt.3 pam_authenticate.3 \ + pam_chauthtok.3 pam_close_session.3 pam_conv.3 \ + pam_end.3 pam_error.3 \ + pam_fail_delay.3 pam_xauth_data.3 \ + pam_get_authtok.3 pam_get_authtok_noverify.3 pam_get_authtok_verify.3 \ + pam_get_data.3 pam_get_item.3 pam_get_user.3 \ + pam_getenv.3 pam_getenvlist.3 \ + pam_info.3 \ + pam_open_session.3 \ + pam_prompt.3 pam_putenv.3 \ + pam_set_data.3 pam_set_item.3 pam_syslog.3 \ + pam_setcred.3 pam_sm_acct_mgmt.3 pam_sm_authenticate.3 \ + pam_sm_close_session.3 pam_sm_open_session.3 pam_sm_setcred.3 \ + pam_sm_chauthtok.3 pam_start.3 pam_strerror.3 \ + pam_verror.3 pam_vinfo.3 pam_vprompt.3 pam_vsyslog.3 \ + misc_conv.3 pam_misc_paste_env.3 pam_misc_drop_env.3 \ + pam_misc_setenv.3 +XMLS = pam.3.xml pam.8.xml \ + pam_acct_mgmt.3.xml pam_authenticate.3.xml \ + pam_chauthtok.3.xml pam_close_session.3.xml pam_conv.3.xml \ + pam_end.3.xml pam_error.3.xml \ + pam_fail_delay.3.xml pam_xauth_data.3 \ + pam_get_authtok.3.xml pam_get_data.3.xml pam_get_item.3.xml \ + pam_get_user.3.xml pam_getenv.3.xml pam_getenvlist.3.xml \ + pam_info.3.xml \ + pam_open_session.3.xml \ + pam_prompt.3.xml pam_putenv.3.xml \ + pam_set_data.3.xml pam_set_item.3.xml pam_syslog.3.xml \ + pam_setcred.3.xml pam_sm_acct_mgmt.3.xml pam_sm_authenticate.3.xml \ + pam_sm_close_session.3.xml pam_sm_open_session.3.xml \ + pam_sm_setcred.3.xml pam_start.3.xml pam_strerror.3.xml \ + pam_sm_chauthtok.3.xml \ + pam_item_types_std.inc.xml pam_item_types_ext.inc.xml \ + pam.conf-desc.xml pam.conf-dir.xml pam.conf-syntax.xml \ + misc_conv.3.xml pam_misc_paste_env.3.xml pam_misc_drop_env.3.xml \ + pam_misc_setenv.3.xml + +if ENABLE_REGENERATE_MAN +PAM.8: pam.8 +pam_get_authtok_noverify.3: pam_get_authtok.3 +pam_get_authtok_verify.3: pam_get_authtok.3 +pam_verror.3: pam_error.3 +pam_vinfo.3: pam_info.3 +pam_vprompt.3: pam_prompt.3 +pam_vsyslog.3: pam_syslog.3 +pam.d.5: pam.conf.5 + test -f $(srcdir)/pam\\.d.5 && mv $(srcdir)/pam\\.d.5 $(srcdir)/pam.d.5 ||: + +pam_get_item.3: pam_item_types_std.inc.xml pam_item_types_ext.inc.xml +pam_set_data.3: pam_item_types_std.inc.xml pam_item_types_ext.inc.xml +pam.conf.5: pam.conf-desc.xml pam.conf-dir.xml pam.conf-syntax.xml +-include $(top_srcdir)/Make.xml.rules +endif diff --git a/doc/man/Makefile.in b/doc/man/Makefile.in new file mode 100644 index 0000000..683785c --- /dev/null +++ b/doc/man/Makefile.in @@ -0,0 +1,726 @@ +# Makefile.in generated by automake 1.13.4 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2013 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free 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$(srcdir)/pam\\.d.5 $(srcdir)/pam.d.5 ||: + +@ENABLE_REGENERATE_MAN_TRUE@pam_get_item.3: pam_item_types_std.inc.xml pam_item_types_ext.inc.xml +@ENABLE_REGENERATE_MAN_TRUE@pam_set_data.3: pam_item_types_std.inc.xml pam_item_types_ext.inc.xml +@ENABLE_REGENERATE_MAN_TRUE@pam.conf.5: pam.conf-desc.xml pam.conf-dir.xml pam.conf-syntax.xml +@ENABLE_REGENERATE_MAN_TRUE@-include $(top_srcdir)/Make.xml.rules + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/doc/man/PAM.8 b/doc/man/PAM.8 new file mode 100644 index 0000000..09f223e --- /dev/null +++ b/doc/man/PAM.8 @@ -0,0 +1,138 @@ +'\" t +.\" Title: pam +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2018 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM" "8" "05/18/2018" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +PAM, pam \- Pluggable Authentication Modules for Linux +.SH "DESCRIPTION" +.PP +This manual is intended to offer a quick introduction to +\fBLinux\-PAM\fR\&. For more information the reader is directed to the +\fBLinux\-PAM system administrators\*(Aq guide\fR\&. +.PP +\fBLinux\-PAM\fR +is a system of libraries that handle the authentication tasks of applications (services) on the system\&. The library provides a stable general interface (Application Programming Interface \- API) that privilege granting programs (such as +\fBlogin\fR(1) +and +\fBsu\fR(1)) defer to to perform standard authentication tasks\&. +.PP +The principal feature of the PAM approach is that the nature of the authentication is dynamically configurable\&. In other words, the system administrator is free to choose how individual service\-providing applications will authenticate users\&. This dynamic configuration is set by the contents of the single +\fBLinux\-PAM\fR +configuration file +/etc/pam\&.conf\&. Alternatively, the configuration can be set by individual configuration files located in the +/etc/pam\&.d/ +directory\&. The presence of this directory will cause +\fBLinux\-PAM\fR +to +\fIignore\fR/etc/pam\&.conf\&. +.PP +Vendor\-supplied PAM configuration files might be installed in the system directory +/usr/lib/pam\&.d/ +instead of the machine configuration directory +/etc/pam\&.d/\&. If no machine configuration file is found, the vendor\-supplied file is used\&. All files in +/etc/pam\&.d/ +override files with the same name in +/usr/lib/pam\&.d/\&. +.PP +From the point of view of the system administrator, for whom this manual is provided, it is not of primary importance to understand the internal behavior of the +\fBLinux\-PAM\fR +library\&. The important point to recognize is that the configuration file(s) +\fIdefine\fR +the connection between applications +(\fBservices\fR) and the pluggable authentication modules +(\fBPAM\fRs) that perform the actual authentication tasks\&. +.PP +\fBLinux\-PAM\fR +separates the tasks of +\fIauthentication\fR +into four independent management groups: +\fBaccount\fR +management; +\fBauth\fRentication management; +\fBpassword\fR +management; and +\fBsession\fR +management\&. (We highlight the abbreviations used for these groups in the configuration file\&.) +.PP +Simply put, these groups take care of different aspects of a typical user\*(Aqs request for a restricted service: +.PP +\fBaccount\fR +\- provide account verification types of service: has the user\*(Aqs password expired?; is this user permitted access to the requested service? +.PP +\fBauth\fRentication \- authenticate a user and set up user credentials\&. Typically this is via some challenge\-response request that the user must satisfy: if you are who you claim to be please enter your password\&. Not all authentications are of this type, there exist hardware based authentication schemes (such as the use of smart\-cards and biometric devices), with suitable modules, these may be substituted seamlessly for more standard approaches to authentication \- such is the flexibility of +\fBLinux\-PAM\fR\&. +.PP +\fBpassword\fR +\- this group\*(Aqs responsibility is the task of updating authentication mechanisms\&. Typically, such services are strongly coupled to those of the +\fBauth\fR +group\&. Some authentication mechanisms lend themselves well to being updated with such a function\&. Standard UN*X password\-based access is the obvious example: please enter a replacement password\&. +.PP +\fBsession\fR +\- this group of tasks cover things that should be done prior to a service being given and after it is withdrawn\&. Such tasks include the maintenance of audit trails and the mounting of the user\*(Aqs home directory\&. The +\fBsession\fR +management group is important as it provides both an opening and closing hook for modules to affect the services available to a user\&. +.SH "FILES" +.PP +/etc/pam\&.conf +.RS 4 +the configuration file +.RE +.PP +/etc/pam\&.d +.RS 4 +the +\fBLinux\-PAM\fR +configuration directory\&. Generally, if this directory is present, the +/etc/pam\&.conf +file is ignored\&. +.RE +.PP +/usr/lib/pam\&.d +.RS 4 +the +\fBLinux\-PAM\fR +vendor configuration directory\&. Files in +/etc/pam\&.d +override files with the same name in this directory\&. +.RE +.SH "ERRORS" +.PP +Typically errors generated by the +\fBLinux\-PAM\fR +system of libraries, will be written to +\fBsyslog\fR(3)\&. +.SH "CONFORMING TO" +.PP +DCE\-RFC 86\&.0, October 1995\&. Contains additional features, but remains backwardly compatible with this RFC\&. +.SH "SEE ALSO" +.PP +\fBpam\fR(3), +\fBpam_authenticate\fR(3), +\fBpam_sm_setcred\fR(3), +\fBpam_strerror\fR(3), +\fBPAM\fR(8) diff --git a/doc/man/misc_conv.3 b/doc/man/misc_conv.3 new file mode 100644 index 0000000..6ee2a1c --- /dev/null +++ b/doc/man/misc_conv.3 @@ -0,0 +1,127 @@ +'\" t +.\" Title: misc_conv +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "MISC_CONV" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +misc_conv \- text based conversation function +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_misc\&.h> +.fi +.ft +.HP \w'int\ misc_conv('u +.BI "int misc_conv(int\ " "num_msg" ", const\ struct\ pam_message\ **" "msgm" ", struct\ pam_response\ **" "response" ", void\ *" "appdata_ptr" ");" +.SH "DESCRIPTION" +.PP +The +\fBmisc_conv\fR +function is part of +\fBlibpam_misc\fR +and not of the standard +\fBlibpam\fR +library\&. This function will prompt the user with the appropriate comments and obtain the appropriate inputs as directed by authentication modules\&. +.PP +In addition to simply slotting into the appropriate +\fBpam_conv\fR(3), this function provides some time\-out facilities\&. The function exports five variables that can be used by an application programmer to limit the amount of time this conversation function will spend waiting for the user to type something\&. The five variabls are as follows: +.PP +\fBtime_t\fR \fIpam_misc_conv_warn_time\fR; +.RS 4 +This variable contains the +\fItime\fR +(as returned by +\fBtime\fR(2)) that the user should be first warned that the clock is ticking\&. By default it has the value +0, which indicates that no such warning will be given\&. The application may set its value to sometime in the future, but this should be done prior to passing control to the +\fILinux\-PAM\fR +library\&. +.RE +.PP +\fBconst char *\fR\fIpam_misc_conv_warn_line\fR; +.RS 4 +Used in conjuction with +\fIpam_misc_conv_warn_time\fR, this variable is a pointer to the string that will be displayed when it becomes time to warn the user that the timeout is approaching\&. Its default value is a translated version of +\(lq\&.\&.\&.Time is running out\&.\&.\&.\(rq, but this can be changed by the application prior to passing control to +\fILinux\-PAM\fR\&. +.RE +.PP +\fBtime_t\fR \fIpam_misc_conv_die_time\fR; +.RS 4 +This variable contains the +\fItime\fR +(as returned by +\fBtime\fR(2)) that the will time out\&. By default it has the value +0, which indicates that the conversation function will not timeout\&. The application may set its value to sometime in the future, but this should be done prior to passing control to the +\fILinux\-PAM\fR +library\&. +.RE +.PP +\fBconst char *\fR\fIpam_misc_conv_die_line\fR; +.RS 4 +Used in conjuction with +\fIpam_misc_conv_die_time\fR, this variable is a pointer to the string that will be displayed when the conversation times out\&. Its default value is a translated version of +\(lq\&.\&.\&.Sorry, your time is up!\(rq, but this can be changed by the application prior to passing control to +\fILinux\-PAM\fR\&. +.RE +.PP +\fBint\fR \fIpam_misc_conv_died\fR; +.RS 4 +Following a return from the +\fILinux\-PAM\fR +libraray, the value of this variable indicates whether the conversation has timed out\&. A value of +1 +indicates the time\-out occurred\&. +.RE +.PP +The following two function pointers are available for supporting binary prompts in the conversation function\&. They are optimized for the current incarnation of the +\fBlibpamc\fR +library and are subject to change\&. +.PP +\fBint\fR \fI(*pam_binary_handler_fn)\fR(\fBvoid *\fR\fIappdata\fR, \fBpamc_bp_t *\fR\fIprompt_p\fR); +.RS 4 +This function pointer is initialized to +NULL +but can be filled with a function that provides machine\-machine (hidden) message exchange\&. It is intended for use with hidden authentication protocols such as RSA or Diffie\-Hellman key exchanges\&. (This is still under development\&.) +.RE +.PP +\fBint\fR \fI(*pam_binary_handler_free)\fR(\fBvoid *\fR\fIappdata\fR, \fBpamc_bp_t *\fR\fIdelete_me\fR); +.RS 4 +This function pointer is initialized to +\fBPAM_BP_RENEW(delete_me, 0, 0)\fR, but can be redefined as desired by the application\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam_conv\fR(3), +\fBpam\fR(8) +.SH "STANDARDS" +.PP +The +\fBmisc_conv\fR +function is part of the +\fBlibpam_misc\fR +Library and not defined in any standard\&. diff --git a/doc/man/misc_conv.3.xml b/doc/man/misc_conv.3.xml new file mode 100644 index 0000000..041f4eb --- /dev/null +++ b/doc/man/misc_conv.3.xml @@ -0,0 +1,188 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> + +<refentry id="misc_conv"> + + <refmeta> + <refentrytitle>misc_conv</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="misc_conv-name"> + <refname>misc_conv</refname> + <refpurpose>text based conversation function</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv> + <funcsynopsis id="misc_conv-synopsis"> + <funcsynopsisinfo>#include <security/pam_misc.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>misc_conv</function></funcdef> + <paramdef>int <parameter>num_msg</parameter></paramdef> + <paramdef>const struct pam_message **<parameter>msgm</parameter></paramdef> + <paramdef>struct pam_response **<parameter>response</parameter></paramdef> + <paramdef>void *<parameter>appdata_ptr</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1 id='misc_conv-description'> + <title>DESCRIPTION</title> + <para> + The <function>misc_conv</function> function is part of + <command>libpam_misc</command> and not of the standard + <command>libpam</command> library. This function will prompt + the user with the appropriate comments and obtain the appropriate + inputs as directed by authentication modules. + </para> + <para> + In addition to simply slotting into the appropriate <citerefentry> + <refentrytitle>pam_conv</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, this function provides some time-out facilities. + The function exports five variables that can be used by an + application programmer to limit the amount of time this conversation + function will spend waiting for the user to type something. The + five variabls are as follows: + </para> + <variablelist> + <varlistentry> + <term><type>time_t</type> <varname>pam_misc_conv_warn_time</varname>;</term> + <listitem> + <para> + This variable contains the <emphasis>time</emphasis> (as + returned by <citerefentry> + <refentrytitle>time</refentrytitle><manvolnum>2</manvolnum> + </citerefentry>) that the user should be first warned that + the clock is ticking. By default it has the value + <returnvalue>0</returnvalue>, which indicates that no such + warning will be given. The application may set its value to + sometime in the future, but this should be done prior to + passing control to the <emphasis>Linux-PAM</emphasis> library. + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term><type>const char *</type><varname>pam_misc_conv_warn_line</varname>;</term> + <listitem> + <para> + Used in conjuction with + <varname>pam_misc_conv_warn_time</varname>, this variable is + a pointer to the string that will be displayed when it becomes + time to warn the user that the timeout is approaching. Its + default value is a translated version of + <quote>...Time is running out...</quote>, but this can be + changed by the application prior to passing control to + <emphasis>Linux-PAM</emphasis>. + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term><type>time_t</type> <varname>pam_misc_conv_die_time</varname>;</term> + <listitem> + <para> + This variable contains the <emphasis>time</emphasis> (as + returned by <citerefentry> + <refentrytitle>time</refentrytitle><manvolnum>2</manvolnum> + </citerefentry>) that the will time out. By default it has + the value <returnvalue>0</returnvalue>, which indicates that + the conversation function will not timeout. The application + may set its value to sometime in the future, but this should + be done prior to passing control to the + <emphasis>Linux-PAM</emphasis> library. + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term><type>const char *</type><varname>pam_misc_conv_die_line</varname>;</term> + <listitem> + <para> + Used in conjuction with + <varname>pam_misc_conv_die_time</varname>, this variable is + a pointer to the string that will be displayed when the + conversation times out. Its default value is a translated + version of + <quote>...Sorry, your time is up!</quote>, but this can be + changed by the application prior to passing control to + <emphasis>Linux-PAM</emphasis>. + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term><type>int</type> <varname>pam_misc_conv_died</varname>;</term> + <listitem> + <para> + Following a return from the <emphasis>Linux-PAM</emphasis> + libraray, the value of this variable indicates whether the + conversation has timed out. A value of + <returnvalue>1</returnvalue> indicates the time-out occurred. + </para> + </listitem> + </varlistentry> + </variablelist> + <para> + The following two function pointers are available for supporting + binary prompts in the conversation function. They are optimized + for the current incarnation of the <command>libpamc</command> + library and are subject to change. + </para> + <variablelist> + <varlistentry> + <term> + <type>int</type> <varname>(*pam_binary_handler_fn)</varname>(<type>void *</type><varname>appdata</varname>, <type>pamc_bp_t *</type><varname>prompt_p</varname>); + </term> + <listitem> + <para> + This function pointer is initialized to + <returnvalue>NULL</returnvalue> but can be filled with a + function that provides machine-machine (hidden) message + exchange. It is intended for use with hidden authentication + protocols such as RSA or Diffie-Hellman key exchanges. + (This is still under development.) + </para> + </listitem> + </varlistentry> + <varlistentry> + <term> + <type>int</type> <varname>(*pam_binary_handler_free)</varname>(<type>void *</type><varname>appdata</varname>, <type>pamc_bp_t *</type><varname>delete_me</varname>); + </term> + <listitem> + <para> + This function pointer is initialized to + <function>PAM_BP_RENEW(delete_me, 0, 0)</function>, but can be + redefined as desired by the application. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id='misc_conv-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam_conv</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum> + </citerefentry> + </para> + </refsect1> + + <refsect1 id='misc_conv-standards'> + <title>STANDARDS</title> + <para> + The <function>misc_conv</function> function is part of the + <command>libpam_misc</command> Library and not defined in any + standard. + </para> + </refsect1> + +</refentry> diff --git a/doc/man/pam.3 b/doc/man/pam.3 new file mode 100644 index 0000000..6b579e3 --- /dev/null +++ b/doc/man/pam.3 @@ -0,0 +1,302 @@ +'\" t +.\" Title: pam +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam \- Pluggable Authentication Modules Library +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_appl\&.h> +.fi +.ft +.sp +.ft B +.nf +#include <security/pam_modules\&.h> +.fi +.ft +.sp +.ft B +.nf +#include <security/pam_ext\&.h> +.fi +.ft +.SH "DESCRIPTION" +.PP +\fBPAM\fR +is a system of libraries that handle the authentication tasks of applications (services) on the system\&. The library provides a stable general interface (Application Programming Interface \- API) that privilege granting programs (such as +\fBlogin\fR(1) +and +\fBsu\fR(1)) defer to to perform standard authentication tasks\&. +.SS "Initialization and Cleanup" +.PP +The +\fBpam_start\fR(3) +function creates the PAM context and initiates the PAM transaction\&. It is the first of the PAM functions that needs to be called by an application\&. The transaction state is contained entirely within the structure identified by this handle, so it is possible to have multiple transactions in parallel\&. But it is not possible to use the same handle for different transactions, a new one is needed for every new context\&. +.PP +The +\fBpam_end\fR(3) +function terminates the PAM transaction and is the last function an application should call in the PAM context\&. Upon return the handle pamh is no longer valid and all memory associated with it will be invalid\&. It can be called at any time to terminate a PAM transaction\&. +.SS "Authentication" +.PP +The +\fBpam_authenticate\fR(3) +function is used to authenticate the user\&. The user is required to provide an authentication token depending upon the authentication service, usually this is a password, but could also be a finger print\&. +.PP +The +\fBpam_setcred\fR(3) +function manages the user\*(Aqs credentials\&. +.SS "Account Management" +.PP +The +\fBpam_acct_mgmt\fR(3) +function is used to determine if the user\*(Aqs account is valid\&. It checks for authentication token and account expiration and verifies access restrictions\&. It is typically called after the user has been authenticated\&. +.SS "Password Management" +.PP +The +\fBpam_chauthtok\fR(3) +function is used to change the authentication token for a given user on request or because the token has expired\&. +.SS "Session Management" +.PP +The +\fBpam_open_session\fR(3) +function sets up a user session for a previously successful authenticated user\&. The session should later be terminated with a call to +\fBpam_close_session\fR(3)\&. +.SS "Conversation" +.PP +The PAM library uses an application\-defined callback to allow a direct communication between a loaded module and the application\&. This callback is specified by the +\fIstruct pam_conv\fR +passed to +\fBpam_start\fR(3) +at the start of the transaction\&. See +\fBpam_conv\fR(3) +for details\&. +.SS "Data Objects" +.PP +The +\fBpam_set_item\fR(3) +and +\fBpam_get_item\fR(3) +functions allows applications and PAM service modules to set and retrieve PAM informations\&. +.PP +The +\fBpam_get_user\fR(3) +function is the preferred method to obtain the username\&. +.PP +The +\fBpam_set_data\fR(3) +and +\fBpam_get_data\fR(3) +functions allows PAM service modules to set and retrieve free\-form data from one invocation to another\&. +.SS "Environment and Error Management" +.PP +The +\fBpam_putenv\fR(3), +\fBpam_getenv\fR(3) +and +\fBpam_getenvlist\fR(3) +functions are for maintaining a set of private environment variables\&. +.PP +The +\fBpam_strerror\fR(3) +function returns a pointer to a string describing the given PAM error code\&. +.SH "RETURN VALUES" +.PP +The following return codes are known by PAM: +.PP +PAM_ABORT +.RS 4 +Critical error, immediate abort\&. +.RE +.PP +PAM_ACCT_EXPIRED +.RS 4 +User account has expired\&. +.RE +.PP +PAM_AUTHINFO_UNAVAIL +.RS 4 +Authentication service cannot retrieve authentication info\&. +.RE +.PP +PAM_AUTHTOK_DISABLE_AGING +.RS 4 +Authentication token aging disabled\&. +.RE +.PP +PAM_AUTHTOK_ERR +.RS 4 +Authentication token manipulation error\&. +.RE +.PP +PAM_AUTHTOK_EXPIRED +.RS 4 +Authentication token expired\&. +.RE +.PP +PAM_AUTHTOK_LOCK_BUSY +.RS 4 +Authentication token lock busy\&. +.RE +.PP +PAM_AUTHTOK_RECOVERY_ERR +.RS 4 +Authentication information cannot be recovered\&. +.RE +.PP +PAM_AUTH_ERR +.RS 4 +Authentication failure\&. +.RE +.PP +PAM_BUF_ERR +.RS 4 +Memory buffer error\&. +.RE +.PP +PAM_CONV_ERR +.RS 4 +Conversation failure\&. +.RE +.PP +PAM_CRED_ERR +.RS 4 +Failure setting user credentials\&. +.RE +.PP +PAM_CRED_EXPIRED +.RS 4 +User credentials expired\&. +.RE +.PP +PAM_CRED_INSUFFICIENT +.RS 4 +Insufficient credentials to access authentication data\&. +.RE +.PP +PAM_CRED_UNAVAIL +.RS 4 +Authentication service cannot retrieve user credentials\&. +.RE +.PP +PAM_IGNORE +.RS 4 +The return value should be ignored by PAM dispatch\&. +.RE +.PP +PAM_MAXTRIES +.RS 4 +Have exhausted maximum number of retries for service\&. +.RE +.PP +PAM_MODULE_UNKNOWN +.RS 4 +Module is unknown\&. +.RE +.PP +PAM_NEW_AUTHTOK_REQD +.RS 4 +Authentication token is no longer valid; new one required\&. +.RE +.PP +PAM_NO_MODULE_DATA +.RS 4 +No module specific data is present\&. +.RE +.PP +PAM_OPEN_ERR +.RS 4 +Failed to load module\&. +.RE +.PP +PAM_PERM_DENIED +.RS 4 +Permission denied\&. +.RE +.PP +PAM_SERVICE_ERR +.RS 4 +Error in service module\&. +.RE +.PP +PAM_SESSION_ERR +.RS 4 +Cannot make/remove an entry for the specified session\&. +.RE +.PP +PAM_SUCCESS +.RS 4 +Success\&. +.RE +.PP +PAM_SYMBOL_ERR +.RS 4 +Symbol not found\&. +.RE +.PP +PAM_SYSTEM_ERR +.RS 4 +System error\&. +.RE +.PP +PAM_TRY_AGAIN +.RS 4 +Failed preliminary check by password service\&. +.RE +.PP +PAM_USER_UNKNOWN +.RS 4 +User not known to the underlying authentication module\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam_acct_mgmt\fR(3), +\fBpam_authenticate\fR(3), +\fBpam_chauthtok\fR(3), +\fBpam_close_session\fR(3), +\fBpam_conv\fR(3), +\fBpam_end\fR(3), +\fBpam_get_data\fR(3), +\fBpam_getenv\fR(3), +\fBpam_getenvlist\fR(3), +\fBpam_get_item\fR(3), +\fBpam_get_user\fR(3), +\fBpam_open_session\fR(3), +\fBpam_putenv\fR(3), +\fBpam_set_data\fR(3), +\fBpam_set_item\fR(3), +\fBpam_setcred\fR(3), +\fBpam_start\fR(3), +\fBpam_strerror\fR(3) +.SH "NOTES" +.PP +The +\fIlibpam\fR +interfaces are only thread\-safe if each thread within the multithreaded application uses its own PAM handle\&. diff --git a/doc/man/pam.3.xml b/doc/man/pam.3.xml new file mode 100644 index 0000000..3efffd9 --- /dev/null +++ b/doc/man/pam.3.xml @@ -0,0 +1,439 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> +<refentry id='pam3'> + + <refmeta> + <refentrytitle>pam</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id='pam3-name'> + <refname>pam</refname> + <refpurpose>Pluggable Authentication Modules Library</refpurpose> + </refnamediv> + + <refsynopsisdiv id='pam3-synopsis'> + <funcsynopsis> + <funcsynopsisinfo>#include <security/pam_appl.h></funcsynopsisinfo> + <funcsynopsisinfo>#include <security/pam_modules.h></funcsynopsisinfo> + <funcsynopsisinfo>#include <security/pam_ext.h></funcsynopsisinfo> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1 id='pam3-description'> + <title>DESCRIPTION</title> + <para> + <emphasis remap='B'>PAM</emphasis> is a system of libraries + that handle the authentication tasks of applications (services) + on the system. The library provides a stable general interface + (Application Programming Interface - API) that privilege granting + programs (such as + <citerefentry> + <refentrytitle>login</refentrytitle><manvolnum>1</manvolnum> + </citerefentry> and <citerefentry> + <refentrytitle>su</refentrytitle><manvolnum>1</manvolnum> + </citerefentry>) + defer to to perform standard authentication tasks. + </para> + + <refsect2 id='pam3-initialization_and_cleanup'> + <title>Initialization and Cleanup</title> + <para> + The + <citerefentry> + <refentrytitle>pam_start</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> function creates the PAM context and initiates the + PAM transaction. It is the first of the PAM functions that needs to + be called by an application. The transaction state is contained + entirely within the structure identified by this handle, so it is + possible to have multiple transactions in parallel. But it is not + possible to use the same handle for different transactions, a new + one is needed for every new context. + </para> + <para> + The + <citerefentry> + <refentrytitle>pam_end</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> function terminates the PAM transaction and is the last + function an application should call in the PAM context. Upon return + the handle pamh is no longer valid and all memory associated with it + will be invalid. It can be called at any time to terminate a PAM + transaction. + </para> + </refsect2> + + <refsect2 id='pam3-authentication'> + <title>Authentication</title> + <para> + The + <citerefentry> + <refentrytitle>pam_authenticate</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + function is used to + authenticate the user. The user is required to provide an + authentication token depending upon the authentication service, + usually this is a password, but could also be a finger print. + </para> + <para> + The + <citerefentry> + <refentrytitle>pam_setcred</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + function manages the user's credentials. + </para> + </refsect2> + + <refsect2 id='pam3-account_management'> + <title>Account Management</title> + <para> + The + <citerefentry> + <refentrytitle>pam_acct_mgmt</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> function is used to determine if the user's account is + valid. It checks for authentication token and account expiration and + verifies access restrictions. It is typically called after the user + has been authenticated. + </para> + </refsect2> + + <refsect2 id='pam3-password_management'> + <title>Password Management</title> + <para> + The + <citerefentry> + <refentrytitle>pam_chauthtok</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> function is used to change the authentication token + for a given user on request or because the token has expired. + </para> + </refsect2> + + <refsect2 id='pam3-session_management'> + <title>Session Management</title> + <para> + The + <citerefentry> + <refentrytitle>pam_open_session</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> function sets up a user session for a previously + successful authenticated user. The session should later be terminated + with a call to + <citerefentry> + <refentrytitle>pam_close_session</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>. + </para> + </refsect2> + + <refsect2 id='pam3-conversation'> + <title>Conversation</title> + <para> + The PAM library uses an application-defined callback to allow + a direct communication between a loaded module and the application. + This callback is specified by the + <emphasis>struct pam_conv</emphasis> passed to + <citerefentry> + <refentrytitle>pam_start</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> at the start of the transaction. See + <citerefentry> + <refentrytitle>pam_conv</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + for details. + </para> + </refsect2> + + <refsect2 id='pam3-data'> + <title>Data Objects</title> + <para> + The + <citerefentry> + <refentrytitle>pam_set_item</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + and + <citerefentry> + <refentrytitle>pam_get_item</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + functions allows applications and PAM service modules to set and + retrieve PAM informations. + </para> + <para> + The + <citerefentry> + <refentrytitle>pam_get_user</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + function is the preferred method to obtain the username. + </para> + <para> + The + <citerefentry> + <refentrytitle>pam_set_data</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + and + <citerefentry> + <refentrytitle>pam_get_data</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + functions allows PAM service modules to set and retrieve free-form + data from one invocation to another. + </para> + </refsect2> + + <refsect2 id='pam3-miscellaneous'> + <title>Environment and Error Management</title> + <para> + The + <citerefentry> + <refentrytitle>pam_putenv</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_getenv</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> and + <citerefentry> + <refentrytitle>pam_getenvlist</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + functions are for maintaining a set of private environment variables. + </para> + + <para> + The + <citerefentry> + <refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> function returns a pointer to a string describing the + given PAM error code. + </para> + </refsect2> + </refsect1> + + <refsect1 id='pam3-return_values'> + <title>RETURN VALUES</title> + <para> + The following return codes are known by PAM: + </para> + <variablelist> + <varlistentry> + <term>PAM_ABORT</term> + <listitem> + <para>Critical error, immediate abort.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_ACCT_EXPIRED</term> + <listitem> + <para>User account has expired.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_AUTHINFO_UNAVAIL</term> + <listitem> + <para> + Authentication service cannot retrieve authentication info. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_AUTHTOK_DISABLE_AGING</term> + <listitem> + <para>Authentication token aging disabled.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_AUTHTOK_ERR</term> + <listitem> + <para>Authentication token manipulation error.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_AUTHTOK_EXPIRED</term> + <listitem> + <para>Authentication token expired.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_AUTHTOK_LOCK_BUSY</term> + <listitem> + <para>Authentication token lock busy.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_AUTHTOK_RECOVERY_ERR</term> + <listitem> + <para>Authentication information cannot be recovered.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_AUTH_ERR</term> + <listitem> + <para>Authentication failure.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_BUF_ERR</term> + <listitem> + <para>Memory buffer error.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_CONV_ERR</term> + <listitem> + <para>Conversation failure.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_CRED_ERR</term> + <listitem> + <para>Failure setting user credentials.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_CRED_EXPIRED</term> + <listitem> + <para>User credentials expired.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_CRED_INSUFFICIENT</term> + <listitem> + <para>Insufficient credentials to access authentication data.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_CRED_UNAVAIL</term> + <listitem> + <para>Authentication service cannot retrieve user credentials.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_IGNORE</term> + <listitem> + <para>The return value should be ignored by PAM dispatch.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_MAXTRIES</term> + <listitem> + <para>Have exhausted maximum number of retries for service.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_MODULE_UNKNOWN</term> + <listitem> + <para>Module is unknown.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_NEW_AUTHTOK_REQD</term> + <listitem> + <para> + Authentication token is no longer valid; new one required. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_NO_MODULE_DATA</term> + <listitem> + <para>No module specific data is present.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_OPEN_ERR</term> + <listitem> + <para>Failed to load module.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_PERM_DENIED</term> + <listitem> + <para>Permission denied.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SERVICE_ERR</term> + <listitem> + <para>Error in service module.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SESSION_ERR</term> + <listitem> + <para>Cannot make/remove an entry for the specified session.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para>Success.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SYMBOL_ERR</term> + <listitem> + <para>Symbol not found.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SYSTEM_ERR</term> + <listitem> + <para>System error.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_TRY_AGAIN</term> + <listitem> + <para>Failed preliminary check by password service.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_USER_UNKNOWN</term> + <listitem> + <para>User not known to the underlying authentication module.</para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id='see_also'><title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam_acct_mgmt</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, <citerefentry> + <refentrytitle>pam_authenticate</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, <citerefentry> + <refentrytitle>pam_chauthtok</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, <citerefentry> + <refentrytitle>pam_close_session</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, <citerefentry> + <refentrytitle>pam_conv</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, <citerefentry> + <refentrytitle>pam_end</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, <citerefentry> + <refentrytitle>pam_get_data</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, <citerefentry> + <refentrytitle>pam_getenv</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, <citerefentry> + <refentrytitle>pam_getenvlist</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, <citerefentry> + <refentrytitle>pam_get_item</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, <citerefentry> + <refentrytitle>pam_get_user</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, <citerefentry> + <refentrytitle>pam_open_session</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, <citerefentry> + <refentrytitle>pam_putenv</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, <citerefentry> + <refentrytitle>pam_set_data</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, <citerefentry> + <refentrytitle>pam_set_item</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, <citerefentry> + <refentrytitle>pam_setcred</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, <citerefentry> + <refentrytitle>pam_start</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, <citerefentry> + <refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + </para> + </refsect1> + <refsect1 id='pam3-notes'><title>NOTES</title> + <para> + The <emphasis>libpam</emphasis> interfaces are only thread-safe if each + thread within the multithreaded application uses its own PAM handle. + </para> + </refsect1> +</refentry> diff --git a/doc/man/pam.8 b/doc/man/pam.8 new file mode 100644 index 0000000..78b1afa --- /dev/null +++ b/doc/man/pam.8 @@ -0,0 +1 @@ +.so PAM.8 diff --git a/doc/man/pam.8.xml b/doc/man/pam.8.xml new file mode 100644 index 0000000..9839def --- /dev/null +++ b/doc/man/pam.8.xml @@ -0,0 +1,203 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> + +<refentry id='pam8'> + + <refmeta> + <refentrytitle>pam</refentrytitle> + <manvolnum>8</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id='pam8-name'> + <refname>PAM</refname> + <refname>pam</refname> + <refpurpose>Pluggable Authentication Modules for Linux</refpurpose> + </refnamediv> + + <refsect1 id='pam8-description'> + <title>DESCRIPTION</title> + <para> + This manual is intended to offer a quick introduction to + <emphasis remap='B'>Linux-PAM</emphasis>. For more information + the reader is directed to the + <emphasis remap='B'>Linux-PAM system administrators' guide</emphasis>. + </para> + + <para> + <emphasis remap='B'>Linux-PAM</emphasis> is a system of libraries + that handle the authentication tasks of applications (services) on + the system. The library provides a stable general interface + (Application Programming Interface - API) that privilege granting + programs (such as <citerefentry> + <refentrytitle>login</refentrytitle><manvolnum>1</manvolnum> + </citerefentry> and <citerefentry> + <refentrytitle>su</refentrytitle><manvolnum>1</manvolnum> + </citerefentry>) defer to to perform standard authentication tasks. + </para> + + <para> + The principal feature of the PAM approach is that the nature of the + authentication is dynamically configurable. In other words, the + system administrator is free to choose how individual + service-providing applications will authenticate users. This dynamic + configuration is set by the contents of the single + <emphasis remap='B'>Linux-PAM</emphasis> configuration file + <filename>/etc/pam.conf</filename>. Alternatively, the configuration + can be set by individual configuration files located in the + <filename>/etc/pam.d/</filename> directory. The presence of this + directory will cause <emphasis remap='B'>Linux-PAM</emphasis> to + <emphasis remap='I'>ignore</emphasis> <filename>/etc/pam.conf</filename>. + </para> + + <para> + Vendor-supplied PAM configuration files might be installed in + the system directory <filename>/usr/lib/pam.d/</filename> instead + of the machine configuration directory <filename>/etc/pam.d/</filename>. + If no machine configuration file is found, the vendor-supplied file + is used. All files in <filename>/etc/pam.d/</filename> override + files with the same name in <filename>/usr/lib/pam.d/</filename>. + </para> + +<para>From the point of view of the system administrator, for whom this +manual is provided, it is not of primary importance to understand the +internal behavior of the +<emphasis remap='B'>Linux-PAM</emphasis> +library. The important point to recognize is that the configuration +file(s) +<emphasis remap='I'>define</emphasis> +the connection between applications +<emphasis remap='B'></emphasis>(<emphasis remap='B'>services</emphasis>) +and the pluggable authentication modules +<emphasis remap='B'></emphasis>(<emphasis remap='B'>PAM</emphasis>s) +that perform the actual authentication tasks.</para> + + +<para><emphasis remap='B'>Linux-PAM</emphasis> +separates the tasks of +<emphasis remap='I'>authentication</emphasis> +into four independent management groups: +<emphasis remap='B'>account</emphasis> management; +<emphasis remap='B'>auth</emphasis>entication management; +<emphasis remap='B'>password</emphasis> management; +and +<emphasis remap='B'>session</emphasis> management. +(We highlight the abbreviations used for these groups in the +configuration file.)</para> + + +<para>Simply put, these groups take care of different aspects of a typical +user's request for a restricted service:</para> + + +<para><emphasis remap='B'>account</emphasis> - +provide account verification types of service: has the user's password +expired?; is this user permitted access to the requested service?</para> + +<!-- .br --> +<para><emphasis remap='B'>auth</emphasis>entication - +authenticate a user and set up user credentials. Typically this is via +some challenge-response request that the user must satisfy: if you are +who you claim to be please enter your password. Not all authentications +are of this type, there exist hardware based authentication schemes +(such as the use of smart-cards and biometric devices), with suitable +modules, these may be substituted seamlessly for more standard +approaches to authentication - such is the flexibility of +<emphasis remap='B'>Linux-PAM</emphasis>.</para> + +<!-- .br --> +<para><emphasis remap='B'>password</emphasis> - +this group's responsibility is the task of updating authentication +mechanisms. Typically, such services are strongly coupled to those of +the +<emphasis remap='B'>auth</emphasis> +group. Some authentication mechanisms lend themselves well to being +updated with such a function. Standard UN*X password-based access is +the obvious example: please enter a replacement password.</para> + +<!-- .br --> +<para><emphasis remap='B'>session</emphasis> - +this group of tasks cover things that should be done prior to a +service being given and after it is withdrawn. Such tasks include the +maintenance of audit trails and the mounting of the user's home +directory. The +<emphasis remap='B'>session</emphasis> +management group is important as it provides both an opening and +closing hook for modules to affect the services available to a user.</para> + +</refsect1> + + <refsect1 id='pam8-files'> + <title>FILES</title> + <variablelist> + <varlistentry> + <term><filename>/etc/pam.conf</filename></term> + <listitem> + <para>the configuration file</para> + </listitem> + </varlistentry> + <varlistentry> + <term><filename>/etc/pam.d</filename></term> + <listitem> + <para> + the <emphasis remap='B'>Linux-PAM</emphasis> configuration + directory. Generally, if this directory is present, the + <filename>/etc/pam.conf</filename> file is ignored. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term><filename>/usr/lib/pam.d</filename></term> + <listitem> + <para> + the <emphasis remap='B'>Linux-PAM</emphasis> vendor configuration + directory. Files in <filename>/etc/pam.d</filename> override + files with the same name in this directory. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id='pam8-errors'> + <title>ERRORS</title> + <para> + Typically errors generated by the + <emphasis remap='B'>Linux-PAM</emphasis> system of libraries, will + be written to <citerefentry> + <refentrytitle>syslog</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>. + </para> + </refsect1> + + <refsect1 id='pam8-conforming_to'> + <title>CONFORMING TO</title> + <para> + DCE-RFC 86.0, October 1995. + Contains additional features, but remains backwardly compatible + with this RFC. + </para> + </refsect1> + + <refsect1 id='pam8-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_authenticate</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_sm_setcred</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>PAM</refentrytitle><manvolnum>8</manvolnum> + </citerefentry> + </para> + </refsect1> +</refentry> diff --git a/doc/man/pam.conf-desc.xml b/doc/man/pam.conf-desc.xml new file mode 100644 index 0000000..909dcdb --- /dev/null +++ b/doc/man/pam.conf-desc.xml @@ -0,0 +1,21 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> +<section id='pam.conf-desc'> + <para> + When a <emphasis>PAM</emphasis> aware privilege granting application + is started, it activates its attachment to the PAM-API. This + activation performs a number of tasks, the most important being the + reading of the configuration file(s): <filename>/etc/pam.conf</filename>. + Alternatively, this may be the contents of the + <filename>/etc/pam.d/</filename> directory. The presence of this + directory will cause Linux-PAM to ignore + <filename>/etc/pam.conf</filename>. + </para> + <para> + These files list the <emphasis>PAM</emphasis>s that will do the + authentication tasks required by this service, and the appropriate + behavior of the PAM-API in the event that individual + <emphasis>PAM</emphasis>s fail. + </para> +</section> diff --git a/doc/man/pam.conf-dir.xml b/doc/man/pam.conf-dir.xml new file mode 100644 index 0000000..8446cf3 --- /dev/null +++ b/doc/man/pam.conf-dir.xml @@ -0,0 +1,30 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> +<section id='pam.conf-dir'> + <para> + More flexible than the single configuration file is it to + configure libpam via the contents of the + <filename>/etc/pam.d/</filename> directory. In this case the + directory is filled with files each of which has a filename + equal to a service-name (in lower-case): it is the personal + configuration file for the named service. + </para> + + <para> + The syntax of each file in /etc/pam.d/ is similar to that of the + <filename>/etc/pam.conf</filename> file and is made up of lines + of the following form: + </para> + + <programlisting> +type control module-path module-arguments + </programlisting> + + <para> + The only difference being that the service-name is not present. The + service-name is of course the name of the given configuration file. + For example, <filename>/etc/pam.d/login</filename> contains the + configuration for the <emphasis remap='B'>login</emphasis> service. + </para> +</section> diff --git a/doc/man/pam.conf-syntax.xml b/doc/man/pam.conf-syntax.xml new file mode 100644 index 0000000..da7cfb7 --- /dev/null +++ b/doc/man/pam.conf-syntax.xml @@ -0,0 +1,407 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> + +<section id='pam.conf-syntax'> + <para> + The syntax of the <filename>/etc/pam.conf</filename> + configuration file is as follows. The file is made up of a list + of rules, each rule is typically placed on a single line, + but may be extended with an escaped end of line: `\<LF>'. + Comments are preceded with `#' marks and extend to the next end of + line. + </para> + + <para> + The format of each rule is a space separated collection of tokens, + the first three being case-insensitive: + </para> + + <para> + <emphasis remap='B'> service type control module-path module-arguments</emphasis> + </para> + + <para> + The syntax of files contained in the <filename>/etc/pam.d/</filename> + directory, are identical except for the absence of any + <emphasis>service</emphasis> field. In this case, the + <emphasis>service</emphasis> is the name of the file in the + <filename>/etc/pam.d/</filename> directory. This filename must be + in lower case. + </para> + + <para> + An important feature of <emphasis>PAM</emphasis>, is that a + number of rules may be <emphasis>stacked</emphasis> to combine + the services of a number of PAMs for a given authentication task. + </para> + + <para> + The <emphasis>service</emphasis> is typically the familiar name of + the corresponding application: <emphasis>login</emphasis> and + <emphasis>su</emphasis> are good examples. The + <emphasis>service</emphasis>-name, <emphasis>other</emphasis>, + is reserved for giving <emphasis>default</emphasis> rules. + Only lines that mention the current service (or in the absence + of such, the <emphasis>other</emphasis> entries) will be associated + with the given service-application. + </para> + + <para> + The <emphasis>type</emphasis> is the management group that the rule + corresponds to. It is used to specify which of the management groups + the subsequent module is to be associated with. Valid entries are: + </para> + <variablelist> + <varlistentry> + <term>account</term> + <listitem> + <para> + this module type performs non-authentication based account + management. It is typically used to restrict/permit access + to a service based on the time of day, currently available + system resources (maximum number of users) or perhaps the + location of the applicant user -- 'root' login only on the + console. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>auth</term> + <listitem> + <para> + this module type provides two aspects of authenticating + the user. Firstly, it establishes that the user is who they + claim to be, by instructing the application to prompt the user + for a password or other means of identification. Secondly, the + module can grant group membership or other privileges through + its credential granting properties. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>password</term> + <listitem> + <para> + this module type is required for updating the authentication + token associated with the user. Typically, there is one module + for each 'challenge/response' based authentication (auth) type. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>session</term> + <listitem> + <para> + this module type is associated with doing things that need to + be done for the user before/after they can be given service. + Such things include the logging of information concerning the + opening/closing of some data exchange with a user, mounting + directories, etc. + </para> + </listitem> + </varlistentry> + </variablelist> + <para> + If the <emphasis>type</emphasis> value from the list above is prepended + with a <emphasis>-</emphasis> character the PAM library will not log to + the system log if it is not possible to load the module because it is + missing in the system. This can be useful especially for modules which + are not always installed on the system and are not required for correct + authentication and authorization of the login session. + </para> + + <para> + The third field, <emphasis>control</emphasis>, indicates the + behavior of the PAM-API should the module fail to succeed in its + authentication task. There are two types of syntax for this control + field: the simple one has a single simple keyword; the more + complicated one involves a square-bracketed selection of + <emphasis>value=action</emphasis> pairs. + </para> + + <para> + For the simple (historical) syntax valid <emphasis>control</emphasis> + values are: + </para> + <variablelist> + <varlistentry> + <term>required</term> + <listitem> + <para> + failure of such a PAM will ultimately lead to the PAM-API + returning failure but only after the remaining + <emphasis>stacked</emphasis> modules (for this + <emphasis>service</emphasis> and <emphasis>type</emphasis>) + have been invoked. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>requisite</term> + <listitem> + <para> + like <emphasis>required</emphasis>, however, in the case that + such a module returns a failure, control is directly returned + to the application or to the superior PAM stack. + The return value is that associated with + the first required or requisite module to fail. Note, this flag + can be used to protect against the possibility of a user getting + the opportunity to enter a password over an unsafe medium. It is + conceivable that such behavior might inform an attacker of valid + accounts on a system. This possibility should be weighed against + the not insignificant concerns of exposing a sensitive password + in a hostile environment. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>sufficient</term> + <listitem> + <para> + if such a module succeeds and no prior <emphasis>required</emphasis> + module has failed the PAM framework returns success to + the application or to the superior PAM stack immediately without + calling any further modules in the stack. A failure of a + <emphasis>sufficient</emphasis> module is ignored and processing + of the PAM module stack continues unaffected. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>optional</term> + <listitem> + <para> + the success or failure of this module is only important if + it is the only module in the stack associated with this + <emphasis>service</emphasis>+<emphasis>type</emphasis>. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>include</term> + <listitem> + <para> + include all lines of given type from the configuration + file specified as an argument to this control. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>substack</term> + <listitem> + <para> + include all lines of given type from the configuration + file specified as an argument to this control. This differs from + <emphasis>include</emphasis> in that evaluation of the + <emphasis>done</emphasis> and <emphasis>die</emphasis> actions + in a substack does not cause skipping the rest of the complete + module stack, but only of the substack. Jumps in a substack + also can not make evaluation jump out of it, and the whole substack + is counted as one module when the jump is done in a parent stack. + The <emphasis>reset</emphasis> action will reset the state of a + module stack to the state it was in as of beginning of the substack + evaluation. + </para> + </listitem> + </varlistentry> + </variablelist> + + <para> + For the more complicated syntax valid <emphasis>control</emphasis> + values have the following form: + </para> + <programlisting> + [value1=action1 value2=action2 ...] + </programlisting> + + <para> + Where <emphasis>valueN</emphasis> corresponds to the return code + from the function invoked in the module for which the line is + defined. It is selected from one of these: + <emphasis>success</emphasis>, <emphasis>open_err</emphasis>, + <emphasis>symbol_err</emphasis>, <emphasis>service_err</emphasis>, + <emphasis>system_err</emphasis>, <emphasis>buf_err</emphasis>, + <emphasis>perm_denied</emphasis>, <emphasis>auth_err</emphasis>, + <emphasis>cred_insufficient</emphasis>, + <emphasis>authinfo_unavail</emphasis>, + <emphasis>user_unknown</emphasis>, <emphasis>maxtries</emphasis>, + <emphasis>new_authtok_reqd</emphasis>, + <emphasis>acct_expired</emphasis>, <emphasis>session_err</emphasis>, + <emphasis>cred_unavail</emphasis>, <emphasis>cred_expired</emphasis>, + <emphasis>cred_err</emphasis>, <emphasis>no_module_data</emphasis>, + <emphasis>conv_err</emphasis>, <emphasis>authtok_err</emphasis>, + <emphasis>authtok_recover_err</emphasis>, + <emphasis>authtok_lock_busy</emphasis>, + <emphasis>authtok_disable_aging</emphasis>, + <emphasis>try_again</emphasis>, <emphasis>ignore</emphasis>, + <emphasis>abort</emphasis>, <emphasis>authtok_expired</emphasis>, + <emphasis>module_unknown</emphasis>, <emphasis>bad_item</emphasis>, + <emphasis>conv_again</emphasis>, <emphasis>incomplete</emphasis>, + and <emphasis>default</emphasis>. + </para> + <para> + The last of these, <emphasis>default</emphasis>, implies 'all + <emphasis>valueN</emphasis>'s not mentioned explicitly. Note, the + full list of PAM errors is available in + <filename>/usr/include/security/_pam_types.h</filename>. The + <emphasis>actionN</emphasis> can take one of the following forms: + </para> + <variablelist> + <varlistentry> + <term>ignore</term> + <listitem> + <para> + when used with a stack of modules, the module's return + status will not contribute to the return code the application + obtains. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>bad</term> + <listitem> + <para> + this action indicates that the return code should be thought + of as indicative of the module failing. If this module is the + first in the stack to fail, its status value will be used for + that of the whole stack. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>die</term> + <listitem> + <para> + equivalent to bad with the side effect of terminating the + module stack and PAM immediately returning to the application. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>ok</term> + <listitem> + <para> + this tells PAM that the administrator thinks this return code + should contribute directly to the return code of the full + stack of modules. In other words, if the former state of the + stack would lead to a return of <emphasis>PAM_SUCCESS</emphasis>, + the module's return code will override this value. Note, if + the former state of the stack holds some value that is + indicative of a modules failure, this 'ok' value will not be + used to override that value. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>done</term> + <listitem> + <para> + equivalent to ok with the side effect of terminating the module + stack and PAM immediately returning to the application. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>N (an unsigned integer)</term> + <listitem> + <para> + equivalent to ok with the side effect of jumping over the + next N modules in the stack. Note that N equal to 0 is not + allowed (and it would be identical to ok in such case). + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>reset</term> + <listitem> + <para> + clear all memory of the state of the module stack and + start again with the next stacked module. + </para> + </listitem> + </varlistentry> + </variablelist> + + <para> + Each of the four keywords: required; requisite; sufficient; and + optional, have an equivalent expression in terms of the [...] + syntax. They are as follows: + </para> + <variablelist> + <varlistentry> + <term>required</term> + <listitem> + <para> + [success=ok new_authtok_reqd=ok ignore=ignore default=bad] + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>requisite</term> + <listitem> + <para> + [success=ok new_authtok_reqd=ok ignore=ignore default=die] + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>sufficient</term> + <listitem> + <para> + [success=done new_authtok_reqd=done default=ignore] + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>optional</term> + <listitem> + <para> + [success=ok new_authtok_reqd=ok default=ignore] + </para> + </listitem> + </varlistentry> + </variablelist> + + <para> + <emphasis>module-path</emphasis> is either the full filename + of the PAM to be used by the application (it begins with a '/'), + or a relative pathname from the default module location: + <filename>/lib/security/</filename> or + <filename>/lib64/security/</filename>, depending on the architecture. + </para> + + <para> + <emphasis>module-arguments</emphasis> are a space separated list + of tokens that can be used to modify the specific behavior of the + given PAM. Such arguments will be documented for each individual + module. Note, if you wish to include spaces in an argument, you + should surround that argument with square brackets. + </para> + <programlisting> + squid auth required pam_mysql.so user=passwd_query passwd=mada \ + db=eminence [query=select user_name from internet_service \ + where user_name='%u' and password=PASSWORD('%p') and \ + service='web_proxy'] + </programlisting> + <para> + When using this convention, you can include `[' characters + inside the string, and if you wish to include a `]' character + inside the string that will survive the argument parsing, you + should use `\]'. In other words: + </para> + <programlisting> + [..[..\]..] --> ..[..].. + </programlisting> + + <para> + Any line in (one of) the configuration file(s), that is not formatted + correctly, will generally tend (erring on the side of caution) to make + the authentication process fail. A corresponding error is written to + the system log files with a call to + <citerefentry> + <refentrytitle>syslog</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>. + </para> + +</section> diff --git a/doc/man/pam.conf.5 b/doc/man/pam.conf.5 new file mode 100644 index 0000000..43fc60d --- /dev/null +++ b/doc/man/pam.conf.5 @@ -0,0 +1,355 @@ +'\" t +.\" Title: pam.conf +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM\&.CONF" "5" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam.conf, pam.d \- PAM configuration files +.SH "DESCRIPTION" +.PP +When a +\fIPAM\fR +aware privilege granting application is started, it activates its attachment to the PAM\-API\&. This activation performs a number of tasks, the most important being the reading of the configuration file(s): +/etc/pam\&.conf\&. Alternatively, this may be the contents of the +/etc/pam\&.d/ +directory\&. The presence of this directory will cause Linux\-PAM to ignore +/etc/pam\&.conf\&. +.PP +These files list the +\fIPAM\fRs that will do the authentication tasks required by this service, and the appropriate behavior of the PAM\-API in the event that individual +\fIPAM\fRs fail\&. +.PP +The syntax of the +/etc/pam\&.conf +configuration file is as follows\&. The file is made up of a list of rules, each rule is typically placed on a single line, but may be extended with an escaped end of line: `\e<LF>\*(Aq\&. Comments are preceded with `#\*(Aq marks and extend to the next end of line\&. +.PP +The format of each rule is a space separated collection of tokens, the first three being case\-insensitive: +.PP +\fB service type control module\-path module\-arguments\fR +.PP +The syntax of files contained in the +/etc/pam\&.d/ +directory, are identical except for the absence of any +\fIservice\fR +field\&. In this case, the +\fIservice\fR +is the name of the file in the +/etc/pam\&.d/ +directory\&. This filename must be in lower case\&. +.PP +An important feature of +\fIPAM\fR, is that a number of rules may be +\fIstacked\fR +to combine the services of a number of PAMs for a given authentication task\&. +.PP +The +\fIservice\fR +is typically the familiar name of the corresponding application: +\fIlogin\fR +and +\fIsu\fR +are good examples\&. The +\fIservice\fR\-name, +\fIother\fR, is reserved for giving +\fIdefault\fR +rules\&. Only lines that mention the current service (or in the absence of such, the +\fIother\fR +entries) will be associated with the given service\-application\&. +.PP +The +\fItype\fR +is the management group that the rule corresponds to\&. It is used to specify which of the management groups the subsequent module is to be associated with\&. Valid entries are: +.PP +account +.RS 4 +this module type performs non\-authentication based account management\&. It is typically used to restrict/permit access to a service based on the time of day, currently available system resources (maximum number of users) or perhaps the location of the applicant user \-\- \*(Aqroot\*(Aq login only on the console\&. +.RE +.PP +auth +.RS 4 +this module type provides two aspects of authenticating the user\&. Firstly, it establishes that the user is who they claim to be, by instructing the application to prompt the user for a password or other means of identification\&. Secondly, the module can grant group membership or other privileges through its credential granting properties\&. +.RE +.PP +password +.RS 4 +this module type is required for updating the authentication token associated with the user\&. Typically, there is one module for each \*(Aqchallenge/response\*(Aq based authentication (auth) type\&. +.RE +.PP +session +.RS 4 +this module type is associated with doing things that need to be done for the user before/after they can be given service\&. Such things include the logging of information concerning the opening/closing of some data exchange with a user, mounting directories, etc\&. +.RE +.PP +If the +\fItype\fR +value from the list above is prepended with a +\fI\-\fR +character the PAM library will not log to the system log if it is not possible to load the module because it is missing in the system\&. This can be useful especially for modules which are not always installed on the system and are not required for correct authentication and authorization of the login session\&. +.PP +The third field, +\fIcontrol\fR, indicates the behavior of the PAM\-API should the module fail to succeed in its authentication task\&. There are two types of syntax for this control field: the simple one has a single simple keyword; the more complicated one involves a square\-bracketed selection of +\fIvalue=action\fR +pairs\&. +.PP +For the simple (historical) syntax valid +\fIcontrol\fR +values are: +.PP +required +.RS 4 +failure of such a PAM will ultimately lead to the PAM\-API returning failure but only after the remaining +\fIstacked\fR +modules (for this +\fIservice\fR +and +\fItype\fR) have been invoked\&. +.RE +.PP +requisite +.RS 4 +like +\fIrequired\fR, however, in the case that such a module returns a failure, control is directly returned to the application or to the superior PAM stack\&. The return value is that associated with the first required or requisite module to fail\&. Note, this flag can be used to protect against the possibility of a user getting the opportunity to enter a password over an unsafe medium\&. It is conceivable that such behavior might inform an attacker of valid accounts on a system\&. This possibility should be weighed against the not insignificant concerns of exposing a sensitive password in a hostile environment\&. +.RE +.PP +sufficient +.RS 4 +if such a module succeeds and no prior +\fIrequired\fR +module has failed the PAM framework returns success to the application or to the superior PAM stack immediately without calling any further modules in the stack\&. A failure of a +\fIsufficient\fR +module is ignored and processing of the PAM module stack continues unaffected\&. +.RE +.PP +optional +.RS 4 +the success or failure of this module is only important if it is the only module in the stack associated with this +\fIservice\fR+\fItype\fR\&. +.RE +.PP +include +.RS 4 +include all lines of given type from the configuration file specified as an argument to this control\&. +.RE +.PP +substack +.RS 4 +include all lines of given type from the configuration file specified as an argument to this control\&. This differs from +\fIinclude\fR +in that evaluation of the +\fIdone\fR +and +\fIdie\fR +actions in a substack does not cause skipping the rest of the complete module stack, but only of the substack\&. Jumps in a substack also can not make evaluation jump out of it, and the whole substack is counted as one module when the jump is done in a parent stack\&. The +\fIreset\fR +action will reset the state of a module stack to the state it was in as of beginning of the substack evaluation\&. +.RE +.PP +For the more complicated syntax valid +\fIcontrol\fR +values have the following form: +.sp +.if n \{\ +.RS 4 +.\} +.nf + [value1=action1 value2=action2 \&.\&.\&.] + +.fi +.if n \{\ +.RE +.\} +.PP +Where +\fIvalueN\fR +corresponds to the return code from the function invoked in the module for which the line is defined\&. It is selected from one of these: +\fIsuccess\fR, +\fIopen_err\fR, +\fIsymbol_err\fR, +\fIservice_err\fR, +\fIsystem_err\fR, +\fIbuf_err\fR, +\fIperm_denied\fR, +\fIauth_err\fR, +\fIcred_insufficient\fR, +\fIauthinfo_unavail\fR, +\fIuser_unknown\fR, +\fImaxtries\fR, +\fInew_authtok_reqd\fR, +\fIacct_expired\fR, +\fIsession_err\fR, +\fIcred_unavail\fR, +\fIcred_expired\fR, +\fIcred_err\fR, +\fIno_module_data\fR, +\fIconv_err\fR, +\fIauthtok_err\fR, +\fIauthtok_recover_err\fR, +\fIauthtok_lock_busy\fR, +\fIauthtok_disable_aging\fR, +\fItry_again\fR, +\fIignore\fR, +\fIabort\fR, +\fIauthtok_expired\fR, +\fImodule_unknown\fR, +\fIbad_item\fR, +\fIconv_again\fR, +\fIincomplete\fR, and +\fIdefault\fR\&. +.PP +The last of these, +\fIdefault\fR, implies \*(Aqall +\fIvalueN\fR\*(Aqs not mentioned explicitly\&. Note, the full list of PAM errors is available in +/usr/include/security/_pam_types\&.h\&. The +\fIactionN\fR +can take one of the following forms: +.PP +ignore +.RS 4 +when used with a stack of modules, the module\*(Aqs return status will not contribute to the return code the application obtains\&. +.RE +.PP +bad +.RS 4 +this action indicates that the return code should be thought of as indicative of the module failing\&. If this module is the first in the stack to fail, its status value will be used for that of the whole stack\&. +.RE +.PP +die +.RS 4 +equivalent to bad with the side effect of terminating the module stack and PAM immediately returning to the application\&. +.RE +.PP +ok +.RS 4 +this tells PAM that the administrator thinks this return code should contribute directly to the return code of the full stack of modules\&. In other words, if the former state of the stack would lead to a return of +\fIPAM_SUCCESS\fR, the module\*(Aqs return code will override this value\&. Note, if the former state of the stack holds some value that is indicative of a modules failure, this \*(Aqok\*(Aq value will not be used to override that value\&. +.RE +.PP +done +.RS 4 +equivalent to ok with the side effect of terminating the module stack and PAM immediately returning to the application\&. +.RE +.PP +N (an unsigned integer) +.RS 4 +equivalent to ok with the side effect of jumping over the next N modules in the stack\&. Note that N equal to 0 is not allowed (and it would be identical to ok in such case)\&. +.RE +.PP +reset +.RS 4 +clear all memory of the state of the module stack and start again with the next stacked module\&. +.RE +.PP +Each of the four keywords: required; requisite; sufficient; and optional, have an equivalent expression in terms of the [\&.\&.\&.] syntax\&. They are as follows: +.PP +required +.RS 4 +[success=ok new_authtok_reqd=ok ignore=ignore default=bad] +.RE +.PP +requisite +.RS 4 +[success=ok new_authtok_reqd=ok ignore=ignore default=die] +.RE +.PP +sufficient +.RS 4 +[success=done new_authtok_reqd=done default=ignore] +.RE +.PP +optional +.RS 4 +[success=ok new_authtok_reqd=ok default=ignore] +.RE +.PP +\fImodule\-path\fR +is either the full filename of the PAM to be used by the application (it begins with a \*(Aq/\*(Aq), or a relative pathname from the default module location: +/lib/security/ +or +/lib64/security/, depending on the architecture\&. +.PP +\fImodule\-arguments\fR +are a space separated list of tokens that can be used to modify the specific behavior of the given PAM\&. Such arguments will be documented for each individual module\&. Note, if you wish to include spaces in an argument, you should surround that argument with square brackets\&. +.sp +.if n \{\ +.RS 4 +.\} +.nf + squid auth required pam_mysql\&.so user=passwd_query passwd=mada \e + db=eminence [query=select user_name from internet_service \e + where user_name=\*(Aq%u\*(Aq and password=PASSWORD(\*(Aq%p\*(Aq) and \e + service=\*(Aqweb_proxy\*(Aq] + +.fi +.if n \{\ +.RE +.\} +.PP +When using this convention, you can include `[\*(Aq characters inside the string, and if you wish to include a `]\*(Aq character inside the string that will survive the argument parsing, you should use `\e]\*(Aq\&. In other words: +.sp +.if n \{\ +.RS 4 +.\} +.nf + [\&.\&.[\&.\&.\e]\&.\&.] \-\-> \&.\&.[\&.\&.]\&.\&. + +.fi +.if n \{\ +.RE +.\} +.PP +Any line in (one of) the configuration file(s), that is not formatted correctly, will generally tend (erring on the side of caution) to make the authentication process fail\&. A corresponding error is written to the system log files with a call to +\fBsyslog\fR(3)\&. +.PP +More flexible than the single configuration file is it to configure libpam via the contents of the +/etc/pam\&.d/ +directory\&. In this case the directory is filled with files each of which has a filename equal to a service\-name (in lower\-case): it is the personal configuration file for the named service\&. +.PP +The syntax of each file in /etc/pam\&.d/ is similar to that of the +/etc/pam\&.conf +file and is made up of lines of the following form: +.sp +.if n \{\ +.RS 4 +.\} +.nf +type control module\-path module\-arguments + +.fi +.if n \{\ +.RE +.\} +.PP +The only difference being that the service\-name is not present\&. The service\-name is of course the name of the given configuration file\&. For example, +/etc/pam\&.d/login +contains the configuration for the +\fBlogin\fR +service\&. +.SH "SEE ALSO" +.PP +\fBpam\fR(3), +\fBPAM\fR(8), +\fBpam_start\fR(3) diff --git a/doc/man/pam.d.5 b/doc/man/pam.d.5 new file mode 100644 index 0000000..91277d6 --- /dev/null +++ b/doc/man/pam.d.5 @@ -0,0 +1 @@ +.so pam.conf.5 diff --git a/doc/man/pam_acct_mgmt.3 b/doc/man/pam_acct_mgmt.3 new file mode 100644 index 0000000..af8b238 --- /dev/null +++ b/doc/man/pam_acct_mgmt.3 @@ -0,0 +1,100 @@ +'\" t +.\" Title: pam_acct_mgmt +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_ACCT_MGMT" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_acct_mgmt \- PAM account validation management +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_appl\&.h> +.fi +.ft +.HP \w'int\ pam_acct_mgmt('u +.BI "int pam_acct_mgmt(pam_handle_t\ *" "pamh" ", int\ " "flags" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_acct_mgmt\fR +function is used to determine if the user\*(Aqs account is valid\&. It checks for authentication token and account expiration and verifies access restrictions\&. It is typically called after the user has been authenticated\&. +.PP +The +\fIpamh\fR +argument is an authentication handle obtained by a prior call to pam_start()\&. The flags argument is the binary or of zero or more of the following values: +.PP +PAM_SILENT +.RS 4 +Do not emit any messages\&. +.RE +.PP +PAM_DISALLOW_NULL_AUTHTOK +.RS 4 +The PAM module service should return PAM_NEW_AUTHTOK_REQD if the user has a null authentication token\&. +.RE +.SH "RETURN VALUES" +.PP +PAM_ACCT_EXPIRED +.RS 4 +User account has expired\&. +.RE +.PP +PAM_AUTH_ERR +.RS 4 +Authentication failure\&. +.RE +.PP +PAM_NEW_AUTHTOK_REQD +.RS 4 +The user account is valid but their authentication token is +\fIexpired\fR\&. The correct response to this return\-value is to require that the user satisfies the +\fBpam_chauthtok()\fR +function before obtaining service\&. It may not be possible for some applications to do this\&. In such cases, the user should be denied access until such time as they can update their password\&. +.RE +.PP +PAM_PERM_DENIED +.RS 4 +Permission denied\&. +.RE +.PP +PAM_SUCCESS +.RS 4 +The authentication token was successfully updated\&. +.RE +.PP +PAM_USER_UNKNOWN +.RS 4 +User unknown to password service\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam_start\fR(3), +\fBpam_authenticate\fR(3), +\fBpam_chauthtok\fR(3), +\fBpam_strerror\fR(3), +\fBpam\fR(8) diff --git a/doc/man/pam_acct_mgmt.3.xml b/doc/man/pam_acct_mgmt.3.xml new file mode 100644 index 0000000..59760d7 --- /dev/null +++ b/doc/man/pam_acct_mgmt.3.xml @@ -0,0 +1,145 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> +<refentry id='pam_acct_mgmt'> + <refmeta> + <refentrytitle>pam_acct_mgmt</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_acct_mgmt-name"> + <refname>pam_acct_mgmt</refname> + <refpurpose>PAM account validation management</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv> + <funcsynopsis id='pam_acct_mgmt-synopsis'> + <funcsynopsisinfo>#include <security/pam_appl.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_acct_mgmt</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>int <parameter>flags</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + + <refsect1 id='pam_acct_mgmt-description'> + <title>DESCRIPTION</title> + <para> + The <function>pam_acct_mgmt</function> function is used to determine + if the user's account is valid. It checks for authentication token + and account expiration and verifies access restrictions. It is + typically called after the user has been authenticated. + </para> + <para> + The <emphasis>pamh</emphasis> argument is an authentication + handle obtained by a prior call to pam_start(). + The flags argument is the binary or of zero or more of the + following values: + </para> + <variablelist> + <varlistentry> + <term>PAM_SILENT</term> + <listitem> + <para> + Do not emit any messages. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_DISALLOW_NULL_AUTHTOK</term> + <listitem> + <para> + The PAM module service should return PAM_NEW_AUTHTOK_REQD + if the user has a null authentication token. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id="pam_acct_mgmt-return_values"> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_ACCT_EXPIRED</term> + <listitem> + <para> + User account has expired. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_AUTH_ERR</term> + <listitem> + <para> + Authentication failure. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_NEW_AUTHTOK_REQD</term> + <listitem> + <para> + The user account is valid but their authentication token + is <emphasis>expired</emphasis>. The correct response to + this return-value is to require that the user satisfies + the <function>pam_chauthtok()</function> function before + obtaining service. It may not be possible for some + applications to do this. In such cases, the user should be + denied access until such time as they can update their password. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_PERM_DENIED</term> + <listitem> + <para> + Permission denied. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + The authentication token was successfully updated. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_USER_UNKNOWN</term> + <listitem> + <para> + User unknown to password service. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id='pam_acct_mgmt-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam_start</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_authenticate</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_chauthtok</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum> + </citerefentry> + </para> + </refsect1> +</refentry> diff --git a/doc/man/pam_authenticate.3 b/doc/man/pam_authenticate.3 new file mode 100644 index 0000000..10b6866 --- /dev/null +++ b/doc/man/pam_authenticate.3 @@ -0,0 +1,110 @@ +'\" t +.\" Title: pam_authenticate +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_AUTHENTICATE" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_authenticate \- account authentication +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_appl\&.h> +.fi +.ft +.HP \w'int\ pam_authenticate('u +.BI "int pam_authenticate(pam_handle_t\ *" "pamh" ", int\ " "flags" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_authenticate\fR +function is used to authenticate the user\&. The user is required to provide an authentication token depending upon the authentication service, usually this is a password, but could also be a finger print\&. +.PP +The PAM service module may request that the user enter their username via the conversation mechanism (see +\fBpam_start\fR(3) +and +\fBpam_conv\fR(3))\&. The name of the authenticated user will be present in the PAM item PAM_USER\&. This item may be recovered with a call to +\fBpam_get_item\fR(3)\&. +.PP +The +\fIpamh\fR +argument is an authentication handle obtained by a prior call to pam_start()\&. The flags argument is the binary or of zero or more of the following values: +.PP +PAM_SILENT +.RS 4 +Do not emit any messages\&. +.RE +.PP +PAM_DISALLOW_NULL_AUTHTOK +.RS 4 +The PAM module service should return PAM_AUTH_ERR if the user does not have a registered authentication token\&. +.RE +.SH "RETURN VALUES" +.PP +PAM_ABORT +.RS 4 +The application should exit immediately after calling +\fBpam_end\fR(3) +first\&. +.RE +.PP +PAM_AUTH_ERR +.RS 4 +The user was not authenticated\&. +.RE +.PP +PAM_CRED_INSUFFICIENT +.RS 4 +For some reason the application does not have sufficient credentials to authenticate the user\&. +.RE +.PP +PAM_AUTHINFO_UNAVAIL +.RS 4 +The modules were not able to access the authentication information\&. This might be due to a network or hardware failure etc\&. +.RE +.PP +PAM_MAXTRIES +.RS 4 +One or more of the authentication modules has reached its limit of tries authenticating the user\&. Do not try again\&. +.RE +.PP +PAM_SUCCESS +.RS 4 +The user was successfully authenticated\&. +.RE +.PP +PAM_USER_UNKNOWN +.RS 4 +User unknown to authentication service\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam_start\fR(3), +\fBpam_setcred\fR(3), +\fBpam_chauthtok\fR(3), +\fBpam_strerror\fR(3), +\fBpam\fR(8) diff --git a/doc/man/pam_authenticate.3.xml b/doc/man/pam_authenticate.3.xml new file mode 100644 index 0000000..c2004eb --- /dev/null +++ b/doc/man/pam_authenticate.3.xml @@ -0,0 +1,169 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> +<refentry id='pam_authenticate'> + <refmeta> + <refentrytitle>pam_authenticate</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_authenticate-name"> + <refname>pam_authenticate</refname> + <refpurpose>account authentication</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv> + <funcsynopsis id='pam_authenticate-synopsis'> + <funcsynopsisinfo>#include <security/pam_appl.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_authenticate</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>int <parameter>flags</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + + <refsect1 id='pam_authenticate-description'> + <title>DESCRIPTION</title> + <para> + The <function>pam_authenticate</function> function is used to + authenticate the user. The user is required to provide an + authentication token depending upon the authentication service, + usually this is a password, but could also be a finger print. + </para> + <para> + The PAM service module may request that the user enter their + username via the conversation mechanism (see + <citerefentry> + <refentrytitle>pam_start</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> and + <citerefentry> + <refentrytitle>pam_conv</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>). The name of the authenticated user + will be present in the PAM item PAM_USER. This item may be + recovered with a call to + <citerefentry> + <refentrytitle>pam_get_item</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>. + </para> + <para> + The <emphasis>pamh</emphasis> argument is an authentication + handle obtained by a prior call to pam_start(). + The flags argument is the binary or of zero or more of the + following values: + </para> + <variablelist> + <varlistentry> + <term>PAM_SILENT</term> + <listitem> + <para> + Do not emit any messages. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_DISALLOW_NULL_AUTHTOK</term> + <listitem> + <para> + The PAM module service should return PAM_AUTH_ERR + if the user does not have a registered authentication token. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id="pam_authenticate-return_values"> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_ABORT</term> + <listitem> + <para> + The application should exit immediately after calling + <citerefentry> + <refentrytitle>pam_end</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> first. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_AUTH_ERR</term> + <listitem> + <para> + The user was not authenticated. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_CRED_INSUFFICIENT</term> + <listitem> + <para> + For some reason the application does not have sufficient + credentials to authenticate the user. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_AUTHINFO_UNAVAIL</term> + <listitem> + <para> + The modules were not able to access the authentication + information. This might be due to a network or hardware + failure etc. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_MAXTRIES</term> + <listitem> + <para> + One or more of the authentication modules has reached its + limit of tries authenticating the user. Do not try again. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + The user was successfully authenticated. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_USER_UNKNOWN</term> + <listitem> + <para> + User unknown to authentication service. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id='pam_authenticate-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam_start</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_setcred</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_chauthtok</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum> + </citerefentry> + </para> + </refsect1> +</refentry> diff --git a/doc/man/pam_chauthtok.3 b/doc/man/pam_chauthtok.3 new file mode 100644 index 0000000..06b4b05 --- /dev/null +++ b/doc/man/pam_chauthtok.3 @@ -0,0 +1,109 @@ +'\" t +.\" Title: pam_chauthtok +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_CHAUTHTOK" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_chauthtok \- updating authentication tokens +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_appl\&.h> +.fi +.ft +.HP \w'int\ pam_chauthtok('u +.BI "int pam_chauthtok(pam_handle_t\ *" "pamh" ", int\ " "flags" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_chauthtok\fR +function is used to change the authentication token for a given user (as indicated by the state associated with the handle +\fIpamh\fR)\&. +.PP +The +\fIpamh\fR +argument is an authentication handle obtained by a prior call to pam_start()\&. The flags argument is the binary or of zero or more of the following values: +.PP +PAM_SILENT +.RS 4 +Do not emit any messages\&. +.RE +.PP +PAM_CHANGE_EXPIRED_AUTHTOK +.RS 4 +This argument indicates to the modules that the user\*(Aqs authentication token (password) should only be changed if it has expired\&. If this argument is not passed, the application requires that all authentication tokens are to be changed\&. +.RE +.SH "RETURN VALUES" +.PP +PAM_AUTHTOK_ERR +.RS 4 +A module was unable to obtain the new authentication token\&. +.RE +.PP +PAM_AUTHTOK_RECOVERY_ERR +.RS 4 +A module was unable to obtain the old authentication token\&. +.RE +.PP +PAM_AUTHTOK_LOCK_BUSY +.RS 4 +One or more of the modules was unable to change the authentication token since it is currently locked\&. +.RE +.PP +PAM_AUTHTOK_DISABLE_AGING +.RS 4 +Authentication token aging has been disabled for at least one of the modules\&. +.RE +.PP +PAM_PERM_DENIED +.RS 4 +Permission denied\&. +.RE +.PP +PAM_SUCCESS +.RS 4 +The authentication token was successfully updated\&. +.RE +.PP +PAM_TRY_AGAIN +.RS 4 +Not all of the modules were in a position to update the authentication token(s)\&. In such a case none of the user\*(Aqs authentication tokens are updated\&. +.RE +.PP +PAM_USER_UNKNOWN +.RS 4 +User unknown to password service\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam_start\fR(3), +\fBpam_authenticate\fR(3), +\fBpam_setcred\fR(3), +\fBpam_get_item\fR(3), +\fBpam_strerror\fR(3), +\fBpam\fR(8) diff --git a/doc/man/pam_chauthtok.3.xml b/doc/man/pam_chauthtok.3.xml new file mode 100644 index 0000000..f42bc68 --- /dev/null +++ b/doc/man/pam_chauthtok.3.xml @@ -0,0 +1,164 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> +<refentry id='pam_chauthtok'> + <refmeta> + <refentrytitle>pam_chauthtok</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_chauthtok-name"> + <refname>pam_chauthtok</refname> + <refpurpose>updating authentication tokens</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv> + <funcsynopsis id='pam_chauthtok-synopsis'> + <funcsynopsisinfo>#include <security/pam_appl.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_chauthtok</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>int <parameter>flags</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + + <refsect1 id='pam_chauthtok-description'> + <title>DESCRIPTION</title> + <para> + The <function>pam_chauthtok</function> function is used to change the + authentication token for a given user (as indicated by the state + associated with the handle <emphasis>pamh</emphasis>). + </para> + <para> + The <emphasis>pamh</emphasis> argument is an authentication + handle obtained by a prior call to pam_start(). + The flags argument is the binary or of zero or more of the + following values: + </para> + <variablelist> + <varlistentry> + <term>PAM_SILENT</term> + <listitem> + <para> + Do not emit any messages. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_CHANGE_EXPIRED_AUTHTOK</term> + <listitem> + <para> + This argument indicates to the modules that the user's + authentication token (password) should only be changed + if it has expired. + If this argument is not passed, the application requires + that all authentication tokens are to be changed. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id="pam_chauthtok-return_values"> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_AUTHTOK_ERR</term> + <listitem> + <para> + A module was unable to obtain the new authentication token. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_AUTHTOK_RECOVERY_ERR</term> + <listitem> + <para> + A module was unable to obtain the old authentication token. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_AUTHTOK_LOCK_BUSY</term> + <listitem> + <para> + One or more of the modules was unable to change the + authentication token since it is currently locked. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_AUTHTOK_DISABLE_AGING</term> + <listitem> + <para> + Authentication token aging has been disabled for at least + one of the modules. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_PERM_DENIED</term> + <listitem> + <para> + Permission denied. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + The authentication token was successfully updated. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_TRY_AGAIN</term> + <listitem> + <para> + Not all of the modules were in a position to update the + authentication token(s). In such a case none of the user's + authentication tokens are updated. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_USER_UNKNOWN</term> + <listitem> + <para> + User unknown to password service. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id='pam_chauthtok-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam_start</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_authenticate</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_setcred</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_get_item</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum> + </citerefentry> + </para> + </refsect1> +</refentry> diff --git a/doc/man/pam_close_session.3 b/doc/man/pam_close_session.3 new file mode 100644 index 0000000..755c75c --- /dev/null +++ b/doc/man/pam_close_session.3 @@ -0,0 +1,81 @@ +'\" t +.\" Title: pam_close_session +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_CLOSE_SESSION" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_close_session \- terminate PAM session management +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_appl\&.h> +.fi +.ft +.HP \w'int\ pam_close_session('u +.BI "int pam_close_session(pam_handle_t\ *" "pamh" ", int\ " "flags" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_close_session\fR +function is used to indicate that an authenticated session has ended\&. The session should have been created with a call to +\fBpam_open_session\fR(3)\&. +.PP +It should be noted that the effective uid, +\fBgeteuid\fR(2)\&. of the application should be of sufficient privilege to perform such tasks as unmounting the user\*(Aqs home directory for example\&. +.PP +The flags argument is the binary or of zero or more of the following values: +.PP +PAM_SILENT +.RS 4 +Do not emit any messages\&. +.RE +.SH "RETURN VALUES" +.PP +PAM_ABORT +.RS 4 +General failure\&. +.RE +.PP +PAM_BUF_ERR +.RS 4 +Memory buffer error\&. +.RE +.PP +PAM_SESSION_ERR +.RS 4 +Session failure\&. +.RE +.PP +PAM_SUCCESS +.RS 4 +Session was successful terminated\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam_open_session\fR(3), +\fBpam_strerror\fR(3) diff --git a/doc/man/pam_close_session.3.xml b/doc/man/pam_close_session.3.xml new file mode 100644 index 0000000..db549bd --- /dev/null +++ b/doc/man/pam_close_session.3.xml @@ -0,0 +1,115 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> + +<refentry id='pam_send'> + + <refmeta> + <refentrytitle>pam_close_session</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_close_session-name"> + <refname>pam_close_session</refname> + <refpurpose>terminate PAM session management</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv> + <funcsynopsis id="pam_close_session-synopsis"> + <funcsynopsisinfo>#include <security/pam_appl.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_close_session</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>int <parameter>flags</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + + <refsect1 id="pam_close_session-description"> + <title>DESCRIPTION</title> + <para> + The <function>pam_close_session</function> function is used + to indicate that an authenticated session has ended. + The session should have been created with a call to + <citerefentry> + <refentrytitle>pam_open_session</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>. + </para> + <para> + It should be noted that the effective uid, + <citerefentry> + <refentrytitle>geteuid</refentrytitle><manvolnum>2</manvolnum> + </citerefentry>. of the application should be of sufficient + privilege to perform such tasks as unmounting the + user's home directory for example. + </para> + <para> + The flags argument is the binary or of zero or more of the + following values: + </para> + <variablelist> + <varlistentry> + <term>PAM_SILENT</term> + <listitem> + <para> + Do not emit any messages. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id="pam_close_session-return_values"> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_ABORT</term> + <listitem> + <para> + General failure. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_BUF_ERR</term> + <listitem> + <para> + Memory buffer error. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SESSION_ERR</term> + <listitem> + <para> + Session failure. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + Session was successful terminated. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id="pam_close_session-see_also"> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam_open_session</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + </para> + </refsect1> +</refentry> diff --git a/doc/man/pam_conv.3 b/doc/man/pam_conv.3 new file mode 100644 index 0000000..568fabd --- /dev/null +++ b/doc/man/pam_conv.3 @@ -0,0 +1,177 @@ +'\" t +.\" Title: pam_conv +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_CONV" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_conv \- PAM conversation function +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_appl\&.h> +.fi +.ft +.sp +.nf +struct pam_message { + int msg_style; + const char *msg; +}; + +struct pam_response { + char *resp; + int resp_retcode; +}; + +struct pam_conv { + int (*conv)(int num_msg, const struct pam_message **msg, + struct pam_response **resp, void *appdata_ptr); + void *appdata_ptr; +}; + +.fi +.SH "DESCRIPTION" +.PP +The PAM library uses an application\-defined callback to allow a direct communication between a loaded module and the application\&. This callback is specified by the +\fIstruct pam_conv\fR +passed to +\fBpam_start\fR(3) +at the start of the transaction\&. +.PP +When a module calls the referenced conv() function, the argument +\fIappdata_ptr\fR +is set to the second element of this structure\&. +.PP +The other arguments of a call to conv() concern the information exchanged by module and application\&. That is to say, +\fInum_msg\fR +holds the length of the array of pointers, +\fImsg\fR\&. After a successful return, the pointer +\fIresp\fR +points to an array of pam_response structures, holding the application supplied text\&. The +\fIresp_retcode\fR +member of this struct is unused and should be set to zero\&. It is the caller\*(Aqs responsibility to release both, this array and the responses themselves, using +\fBfree\fR(3)\&. Note, +\fI*resp\fR +is a +\fIstruct pam_response\fR +array and not an array of pointers\&. +.PP +The number of responses is always equal to the +\fInum_msg\fR +conversation function argument\&. This does require that the response array is +\fBfree\fR(3)\*(Aqd after every call to the conversation function\&. The index of the responses corresponds directly to the prompt index in the pam_message array\&. +.PP +On failure, the conversation function should release any resources it has allocated, and return one of the predefined PAM error codes\&. +.PP +Each message can have one of four types, specified by the +\fImsg_style\fR +member of +\fIstruct pam_message\fR: +.PP +PAM_PROMPT_ECHO_OFF +.RS 4 +Obtain a string without echoing any text\&. +.RE +.PP +PAM_PROMPT_ECHO_ON +.RS 4 +Obtain a string whilst echoing text\&. +.RE +.PP +PAM_ERROR_MSG +.RS 4 +Display an error message\&. +.RE +.PP +PAM_TEXT_INFO +.RS 4 +Display some text\&. +.RE +.PP +The point of having an array of messages is that it becomes possible to pass a number of things to the application in a single call from the module\&. It can also be convenient for the application that related things come at once: a windows based application can then present a single form with many messages/prompts on at once\&. +.PP +In passing, it is worth noting that there is a descrepency between the way Linux\-PAM handles the const struct pam_message **msg conversation function argument from the way that Solaris\*(Aq PAM (and derivitives, known to include HP/UX, are there others?) does\&. Linux\-PAM interprets the msg argument as entirely equivalent to the following prototype const struct pam_message *msg[] (which, in spirit, is consistent with the commonly used prototypes for argv argument to the familiar main() function: char **argv; and char *argv[])\&. Said another way Linux\-PAM interprets the msg argument as a pointer to an array of num_msg read only \*(Aqstruct pam_message\*(Aq pointers\&. Solaris\*(Aq PAM implementation interprets this argument as a pointer to a pointer to an array of num_msg pam_message structures\&. Fortunately, perhaps, for most module/application developers when num_msg has a value of one these two definitions are entirely equivalent\&. Unfortunately, casually raising this number to two has led to unanticipated compatibility problems\&. +.PP +For what its worth the two known module writer work\-arounds for trying to maintain source level compatibility with both PAM implementations are: +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +never call the conversation function with num_msg greater than one\&. +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +set up msg as doubly referenced so both types of conversation function can find the messages\&. That is, make +.sp +.if n \{\ +.RS 4 +.\} +.nf + msg[n] = & (( *msg )[n]) + +.fi +.if n \{\ +.RE +.\} +.RE +.SH "RETURN VALUES" +.PP +PAM_BUF_ERR +.RS 4 +Memory buffer error\&. +.RE +.PP +PAM_CONV_ERR +.RS 4 +Conversation failure\&. The application should not set +\fI*resp\fR\&. +.RE +.PP +PAM_SUCCESS +.RS 4 +Success\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam_start\fR(3), +\fBpam_set_item\fR(3), +\fBpam_get_item\fR(3), +\fBpam_strerror\fR(3), +\fBpam\fR(8) diff --git a/doc/man/pam_conv.3.xml b/doc/man/pam_conv.3.xml new file mode 100644 index 0000000..0098ff9 --- /dev/null +++ b/doc/man/pam_conv.3.xml @@ -0,0 +1,228 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> +<refentry id='pam_conv'> + <refmeta> + <refentrytitle>pam_conv</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_conv-name"> + <refname>pam_conv</refname> + <refpurpose>PAM conversation function</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv> + <funcsynopsis id="pam_conv-synopsis"> + <funcsynopsisinfo>#include <security/pam_appl.h></funcsynopsisinfo> + </funcsynopsis> + <programlisting> +struct pam_message { + int msg_style; + const char *msg; +}; + +struct pam_response { + char *resp; + int resp_retcode; +}; + +struct pam_conv { + int (*conv)(int num_msg, const struct pam_message **msg, + struct pam_response **resp, void *appdata_ptr); + void *appdata_ptr; +}; + </programlisting> + </refsynopsisdiv> + + <refsect1 id='pam_conv-description'> + <title>DESCRIPTION</title> + <para> + The PAM library uses an application-defined callback to allow + a direct communication between a loaded module and the application. + This callback is specified by the + <emphasis>struct pam_conv</emphasis> passed to + <citerefentry> + <refentrytitle>pam_start</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + at the start of the transaction. + </para> + <para> + When a module calls the referenced conv() function, the argument + <emphasis>appdata_ptr</emphasis> is set to the second element of + this structure. + </para> + <para> + The other arguments of a call to conv() concern the information + exchanged by module and application. That is to say, + <emphasis>num_msg</emphasis> holds the length of the array of + pointers, <emphasis>msg</emphasis>. After a successful return, the + pointer <emphasis>resp</emphasis> points to an array of pam_response + structures, holding the application supplied text. The + <emphasis>resp_retcode</emphasis> member of this struct is unused and + should be set to zero. It is the caller's responsibility to release + both, this array and the responses themselves, using + <citerefentry> + <refentrytitle>free</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>. Note, <emphasis>*resp</emphasis> is a + <emphasis>struct pam_response</emphasis> array and not an array of + pointers. + </para> + <para> + The number of responses is always equal to the + <emphasis>num_msg</emphasis> conversation function argument. + This does require that the response array is + <citerefentry> + <refentrytitle>free</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>'d after + every call to the conversation function. The index of the + responses corresponds directly to the prompt index in the + pam_message array. + </para> + <para> + On failure, the conversation function should release any resources + it has allocated, and return one of the predefined PAM error codes. + </para> + <para> + Each message can have one of four types, specified by the + <emphasis>msg_style</emphasis> member of + <emphasis>struct pam_message</emphasis>: + </para> + <variablelist> + <varlistentry> + <term>PAM_PROMPT_ECHO_OFF</term> + <listitem> + <para> + Obtain a string without echoing any text. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_PROMPT_ECHO_ON</term> + <listitem> + <para> + Obtain a string whilst echoing text. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_ERROR_MSG</term> + <listitem> + <para> + Display an error message. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_TEXT_INFO</term> + <listitem> + <para> + Display some text. + </para> + </listitem> + </varlistentry> + </variablelist> + <para> + The point of having an array of messages is that it becomes possible + to pass a number of things to the application in a single call from + the module. It can also be convenient for the application that related + things come at once: a windows based application can then present a + single form with many messages/prompts on at once. + </para> + <para> + In passing, it is worth noting that there is a descrepency between + the way Linux-PAM handles the const struct pam_message **msg + conversation function argument from the way that Solaris' PAM + (and derivitives, known to include HP/UX, are there others?) does. + Linux-PAM interprets the msg argument as entirely equivalent to the + following prototype + const struct pam_message *msg[] (which, in spirit, is consistent with + the commonly used prototypes for argv argument to the familiar main() + function: char **argv; and char *argv[]). Said another way Linux-PAM + interprets the msg argument as a pointer to an array of num_msg read + only 'struct pam_message' pointers. Solaris' PAM implementation + interprets this argument as a pointer to a pointer to an array of + num_msg pam_message structures. Fortunately, perhaps, for most + module/application developers when num_msg has a value of one these + two definitions are entirely equivalent. Unfortunately, casually + raising this number to two has led to unanticipated compatibility + problems. + </para> + <para> + For what its worth the two known module writer work-arounds for trying + to maintain source level compatibility with both PAM implementations + are: + </para> + <itemizedlist> + <listitem> + <para> + never call the conversation function with num_msg greater than one. + </para> + </listitem> + <listitem> + <para> + set up msg as doubly referenced so both types of conversation + function can find the messages. That is, make + </para> + <programlisting> + msg[n] = & (( *msg )[n]) + </programlisting> + </listitem> + </itemizedlist> + </refsect1> + + <refsect1 id="pam_conv-return_values"> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_BUF_ERR</term> + <listitem> + <para> + Memory buffer error. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_CONV_ERR</term> + <listitem> + <para> + Conversation failure. The application should not set + <emphasis>*resp</emphasis>. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + Success. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id='pam_conv-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam_start</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_set_item</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_get_item</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum> + </citerefentry> + </para> + </refsect1> +</refentry> diff --git a/doc/man/pam_end.3 b/doc/man/pam_end.3 new file mode 100644 index 0000000..8856752 --- /dev/null +++ b/doc/man/pam_end.3 @@ -0,0 +1,89 @@ +'\" t +.\" Title: pam_end +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_END" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_end \- termination of PAM transaction +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_appl\&.h> +.fi +.ft +.HP \w'int\ pam_end('u +.BI "int pam_end(pam_handle_t\ *" "pamh" ", int\ " "pam_status" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_end\fR +function terminates the PAM transaction and is the last function an application should call in the PAM context\&. Upon return the handle +\fIpamh\fR +is no longer valid and all memory associated with it will be invalid\&. +.PP +The +\fIpam_status\fR +argument should be set to the value returned to the application by the last PAM library call\&. +.PP +The value taken by +\fIpam_status\fR +is used as an argument to the module specific callback function, +\fBcleanup()\fR +(See +\fBpam_set_data\fR(3) +and +\fBpam_get_data\fR(3))\&. In this way the module can be given notification of the pass/fail nature of the tear\-down process, and perform any last minute tasks that are appropriate to the module before it is unlinked\&. This argument can be logically OR\*(Aqd with +\fIPAM_DATA_SILENT\fR +to indicate to indicate that the module should not treat the call too seriously\&. It is generally used to indicate that the current closing of the library is in a +\fBfork\fR(2)ed process, and that the parent will take care of cleaning up things that exist outside of the current process space (files etc\&.)\&. +.PP +This function +\fIfree\fR\*(Aqs all memory for items associated with the +\fBpam_set_item\fR(3) +and +\fBpam_get_item\fR(3) +functions\&. Pointers associated with such objects are not valid anymore after +\fBpam_end\fR +was called\&. +.SH "RETURN VALUES" +.PP +PAM_SUCCESS +.RS 4 +Transaction was successful terminated\&. +.RE +.PP +PAM_SYSTEM_ERR +.RS 4 +System error, for example a NULL pointer was submitted as PAM handle or the function was called by a module\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam_get_data\fR(3), +\fBpam_set_data\fR(3), +\fBpam_start\fR(3), +\fBpam_strerror\fR(3) diff --git a/doc/man/pam_end.3.xml b/doc/man/pam_end.3.xml new file mode 100644 index 0000000..039bb3c --- /dev/null +++ b/doc/man/pam_end.3.xml @@ -0,0 +1,122 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> + +<refentry id='pam_end'> + + <refmeta> + <refentrytitle>pam_end</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_end-name"> + <refname>pam_end</refname> + <refpurpose>termination of PAM transaction</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv> + <funcsynopsis id="pam_end-synopsis"> + <funcsynopsisinfo>#include <security/pam_appl.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_end</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>int <parameter>pam_status</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + + <refsect1 id="pam_end-description"> + <title>DESCRIPTION</title> + <para> + The <function>pam_end</function> function terminates the PAM + transaction and is the last function an application should call + in the PAM context. Upon return the handle <emphasis>pamh</emphasis> + is no longer valid and all memory associated with it will be + invalid. + </para> + <para> + The <emphasis>pam_status</emphasis> argument should be set to + the value returned to the application by the last PAM + library call. + </para> + <para> + The value taken by <emphasis>pam_status</emphasis> is used as + an argument to the module specific callback function, + <function>cleanup()</function> + (See <citerefentry> + <refentrytitle>pam_set_data</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> and + <citerefentry> + <refentrytitle>pam_get_data</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>). In this way the module can be given notification + of the pass/fail nature of the tear-down process, and perform any + last minute tasks that are appropriate to the module before it is + unlinked. This argument can be logically OR'd with + <emphasis>PAM_DATA_SILENT</emphasis> to indicate to indicate that + the module should not treat the call too seriously. It is generally + used to indicate that the current closing of the library is in a + <citerefentry> + <refentrytitle>fork</refentrytitle><manvolnum>2</manvolnum> + </citerefentry>ed + process, and that the parent will take care of cleaning up things + that exist outside of the current process space (files etc.). + </para> + + <para> + This function <emphasis>free</emphasis>'s all memory for items + associated with the + <citerefentry> + <refentrytitle>pam_set_item</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> and + <citerefentry> + <refentrytitle>pam_get_item</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> functions. Pointers associated with such objects + are not valid anymore after <function>pam_end</function> was called. + </para> + + </refsect1> + <refsect1 id="pam_end-return_values"> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + Transaction was successful terminated. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SYSTEM_ERR</term> + <listitem> + <para> + System error, for example a NULL pointer was submitted + as PAM handle or the function was called by a module. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id="pam_end-see_also"> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam_get_data</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_set_data</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_start</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + </para> + </refsect1> +</refentry> diff --git a/doc/man/pam_error.3 b/doc/man/pam_error.3 new file mode 100644 index 0000000..d7f4ca7 --- /dev/null +++ b/doc/man/pam_error.3 @@ -0,0 +1,90 @@ +'\" t +.\" Title: pam_error +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_ERROR" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_error, pam_verror \- display error messages to the user +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_ext\&.h> +.fi +.ft +.HP \w'int\ pam_error('u +.BI "int pam_error(pam_handle_t\ *" "pamh" ", const\ char\ *" "fmt" ", " "\&.\&.\&." ");" +.HP \w'int\ pam_verror('u +.BI "int pam_verror(pam_handle_t\ *" "pamh" ", const\ char\ *" "fmt" ", va_list\ " "args" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_error\fR +function prints error messages through the conversation function to the user\&. +.PP +The +\fBpam_verror\fR +function performs the same task as +\fBpam_error()\fR +with the difference that it takes a set of arguments which have been obtained using the +\fBstdarg\fR(3) +variable argument list macros\&. +.SH "RETURN VALUES" +.PP +PAM_BUF_ERR +.RS 4 +Memory buffer error\&. +.RE +.PP +PAM_CONV_ERR +.RS 4 +Conversation failure\&. +.RE +.PP +PAM_SUCCESS +.RS 4 +Error message was displayed\&. +.RE +.PP +PAM_SYSTEM_ERR +.RS 4 +System error\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam_info\fR(3), +\fBpam_vinfo\fR(3), +\fBpam_prompt\fR(3), +\fBpam_vprompt\fR(3), +\fBpam\fR(8) +.SH "STANDARDS" +.PP +The +\fBpam_error\fR +and +\fBpam_verror\fR +functions are Linux\-PAM extensions\&. diff --git a/doc/man/pam_error.3.xml b/doc/man/pam_error.3.xml new file mode 100644 index 0000000..de167f2 --- /dev/null +++ b/doc/man/pam_error.3.xml @@ -0,0 +1,121 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> + +<refentry id="pam_error"> + + <refmeta> + <refentrytitle>pam_error</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_error-name"> + <refname>pam_error</refname> + <refname>pam_verror</refname> + <refpurpose>display error messages to the user</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv id="pam_error-synopsis"> + <funcsynopsis> + <funcsynopsisinfo>#include <security/pam_ext.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_error</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>const char *<parameter>fmt</parameter></paramdef> + <paramdef><parameter>...</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef>int <function>pam_verror</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>const char *<parameter>fmt</parameter></paramdef> + <paramdef>va_list <parameter>args</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1 id='pam_error-description'> + <title>DESCRIPTION</title> + <para> + The <function>pam_error</function> function prints error messages + through the conversation function to the user. + </para> + <para> + The <function>pam_verror</function> function performs the same + task as <function>pam_error()</function> with the difference + that it takes a set of arguments which have been obtained using + the <citerefentry> + <refentrytitle>stdarg</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> variable argument list macros. + </para> + </refsect1> + <refsect1 id="pam_error-return_values"> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_BUF_ERR</term> + <listitem> + <para> + Memory buffer error. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_CONV_ERR</term> + <listitem> + <para> + Conversation failure. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + Error message was displayed. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SYSTEM_ERR</term> + <listitem> + <para> + System error. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id='pam_error-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam_info</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_vinfo</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_prompt</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_vprompt</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum> + </citerefentry> + </para> + </refsect1> + + <refsect1 id='pam_error-standards'> + <title>STANDARDS</title> + <para> + The <function>pam_error</function> and <function>pam_verror</function> + functions are Linux-PAM extensions. + </para> + </refsect1> + +</refentry> diff --git a/doc/man/pam_fail_delay.3 b/doc/man/pam_fail_delay.3 new file mode 100644 index 0000000..47d63b7 --- /dev/null +++ b/doc/man/pam_fail_delay.3 @@ -0,0 +1,166 @@ +'\" t +.\" Title: pam_fail_delay +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_FAIL_DELAY" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_fail_delay \- request a delay on failure +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_appl\&.h> +.fi +.ft +.HP \w'int\ pam_fail_delay('u +.BI "int pam_fail_delay(pam_handle_t\ *" "pamh" ", unsigned\ int\ " "usec" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_fail_delay\fR +function provides a mechanism by which an application or module can suggest a minimum delay of +\fIusec\fR +micro\-seconds\&. The function keeps a record of the longest time requested with this function\&. Should +\fBpam_authenticate\fR(3) +fail, the failing return to the application is delayed by an amount of time randomly distributed (by up to 50%) about this longest value\&. +.PP +Independent of success, the delay time is reset to its zero default value when the PAM service module returns control to the application\&. The delay occurs +\fIafter\fR +all authentication modules have been called, but +\fIbefore\fR +control is returned to the service application\&. +.PP +When using this function the programmer should check if it is available with: +.sp +.if n \{\ +.RS 4 +.\} +.nf +#ifdef HAVE_PAM_FAIL_DELAY + \&.\&.\&.\&. +#endif /* HAVE_PAM_FAIL_DELAY */ + +.fi +.if n \{\ +.RE +.\} +.PP +For applications written with a single thread that are event driven in nature, generating this delay may be undesirable\&. Instead, the application may want to register the delay in some other way\&. For example, in a single threaded server that serves multiple authentication requests from a single event loop, the application might want to simply mark a given connection as blocked until an application timer expires\&. For this reason the delay function can be changed with the +\fIPAM_FAIL_DELAY\fR +item\&. It can be queried and set with +\fBpam_get_item\fR(3) +and +\fBpam_set_item \fR(3) +respectively\&. The value used to set it should be a function pointer of the following prototype: +.sp +.if n \{\ +.RS 4 +.\} +.nf +void (*delay_fn)(int retval, unsigned usec_delay, void *appdata_ptr); + +.fi +.if n \{\ +.RE +.\} +.sp +The arguments being the +\fIretval\fR +return code of the module stack, the +\fIusec_delay\fR +micro\-second delay that libpam is requesting and the +\fIappdata_ptr\fR +that the application has associated with the current +\fIpamh\fR\&. This last value was set by the application when it called +\fBpam_start\fR(3) +or explicitly with +\fBpam_set_item\fR(3)\&. Note, if PAM_FAIL_DELAY item is unset (or set to NULL), then no delay will be performed\&. +.SH "RATIONALE" +.PP +It is often possible to attack an authentication scheme by exploiting the time it takes the scheme to deny access to an applicant user\&. In cases of +\fIshort\fR +timeouts, it may prove possible to attempt a +\fIbrute force\fR +dictionary attack \-\- with an automated process, the attacker tries all possible passwords to gain access to the system\&. In other cases, where individual failures can take measurable amounts of time (indicating the nature of the failure), an attacker can obtain useful information about the authentication process\&. These latter attacks make use of procedural delays that constitute a +\fIcovert channel\fR +of useful information\&. +.PP +To minimize the effectiveness of such attacks, it is desirable to introduce a random delay in a failed authentication process\&. Preferable this value should be set by the application or a special PAM module\&. Standard PAM modules should not modify the delay unconditional\&. +.SH "EXAMPLE" +.PP +For example, a login application may require a failure delay of roughly 3 seconds\&. It will contain the following code: +.sp +.if n \{\ +.RS 4 +.\} +.nf + pam_fail_delay (pamh, 3000000 /* micro\-seconds */ ); + pam_authenticate (pamh, 0); + +.fi +.if n \{\ +.RE +.\} +.PP +if the modules do not request a delay, the failure delay will be between 1\&.5 and 4\&.5 seconds\&. +.PP +However, the modules, invoked in the authentication process, may also request delays: +.sp +.if n \{\ +.RS 4 +.\} +.nf +module #1: pam_fail_delay (pamh, 2000000); +module #2: pam_fail_delay (pamh, 4000000); + +.fi +.if n \{\ +.RE +.\} +.PP +in this case, it is the largest requested value that is used to compute the actual failed delay: here between 2 and 6 seconds\&. +.SH "RETURN VALUES" +.PP +PAM_SUCCESS +.RS 4 +Delay was successful adjusted\&. +.RE +.PP +PAM_SYSTEM_ERR +.RS 4 +A NULL pointer was submitted as PAM handle\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam_start\fR(3), +\fBpam_get_item\fR(3), +\fBpam_strerror\fR(3) +.SH "STANDARDS" +.PP +The +\fBpam_fail_delay\fR +function is an Linux\-PAM extension\&. diff --git a/doc/man/pam_fail_delay.3.xml b/doc/man/pam_fail_delay.3.xml new file mode 100644 index 0000000..46d89be --- /dev/null +++ b/doc/man/pam_fail_delay.3.xml @@ -0,0 +1,202 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> + +<refentry id="pam_fail_delay"> + + <refmeta> + <refentrytitle>pam_fail_delay</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_fail_delay-name"> + <refname>pam_fail_delay</refname> + <refpurpose>request a delay on failure</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv> + <funcsynopsis id="pam_fail_delay-synopsis"> + <funcsynopsisinfo>#include <security/pam_appl.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_fail_delay</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>unsigned int <parameter>usec</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1 id='pam_fail_delay-description'> + <title>DESCRIPTION</title> + <para> + The <function>pam_fail_delay</function> function provides a + mechanism by which an application or module can suggest a minimum + delay of <emphasis>usec</emphasis> micro-seconds. The + function keeps a record of the longest time requested with this + function. Should + <citerefentry> + <refentrytitle>pam_authenticate</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> fail, the failing return to the application is + delayed by an amount of time randomly distributed (by up to 50%) + about this longest value. + </para> + <para> + Independent of success, the delay time is reset to its zero + default value when the PAM service module returns control to + the application. The delay occurs <emphasis>after</emphasis> all + authentication modules have been called, but <emphasis>before</emphasis> + control is returned to the service application. + </para> + <para> + When using this function the programmer should check if it is + available with: + </para> + <programlisting> +#ifdef HAVE_PAM_FAIL_DELAY + .... +#endif /* HAVE_PAM_FAIL_DELAY */ + </programlisting> + + <para> + For applications written with a single thread that are event + driven in nature, generating this delay may be undesirable. + Instead, the application may want to register the delay in some + other way. For example, in a single threaded server that serves + multiple authentication requests from a single event loop, the + application might want to simply mark a given connection as + blocked until an application timer expires. For this reason + the delay function can be changed with the + <emphasis>PAM_FAIL_DELAY</emphasis> item. It can be queried and + set with + <citerefentry> + <refentrytitle>pam_get_item</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + and + <citerefentry> + <refentrytitle>pam_set_item </refentrytitle><manvolnum>3</manvolnum> + </citerefentry> respectively. The value used to set it should be + a function pointer of the following prototype: + <programlisting> +void (*delay_fn)(int retval, unsigned usec_delay, void *appdata_ptr); + </programlisting> + The arguments being the <emphasis>retval</emphasis> return code + of the module stack, the <emphasis>usec_delay</emphasis> + micro-second delay that libpam is requesting and the + <emphasis>appdata_ptr</emphasis> that the application has associated + with the current <emphasis>pamh</emphasis>. This last value was set + by the application when it called + <citerefentry> + <refentrytitle>pam_start</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> or explicitly with + <citerefentry> + <refentrytitle>pam_set_item</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>. + Note, if PAM_FAIL_DELAY item is unset (or set to NULL), then no delay + will be performed. + </para> + </refsect1> + + <refsect1 id='pam_fail_delay-rationale'> + <title>RATIONALE</title> + <para> + It is often possible to attack an authentication scheme by exploiting + the time it takes the scheme to deny access to an applicant user. In + cases of <emphasis>short</emphasis> timeouts, it may prove possible + to attempt a <emphasis>brute force</emphasis> dictionary attack -- + with an automated process, the attacker tries all possible passwords + to gain access to the system. In other cases, where individual + failures can take measurable amounts of time (indicating the nature + of the failure), an attacker can obtain useful information about the + authentication process. These latter attacks make use of procedural + delays that constitute a <emphasis>covert channel</emphasis> + of useful information. + </para> + <para> + To minimize the effectiveness of such attacks, it is desirable to + introduce a random delay in a failed authentication process. + Preferable this value should be set by the application or a special + PAM module. Standard PAM modules should not modify the delay + unconditional. + </para> + </refsect1> + + <refsect1 id='pam_fail_delay-example'> + <title>EXAMPLE</title> + <para> + For example, a login application may require a failure delay of + roughly 3 seconds. It will contain the following code: + </para> + <programlisting> + pam_fail_delay (pamh, 3000000 /* micro-seconds */ ); + pam_authenticate (pamh, 0); + </programlisting> + + <para> + if the modules do not request a delay, the failure delay will be + between 1.5 and 4.5 seconds. + </para> + + <para> + However, the modules, invoked in the authentication process, may + also request delays: + </para> + + <programlisting> +module #1: pam_fail_delay (pamh, 2000000); +module #2: pam_fail_delay (pamh, 4000000); + </programlisting> + + <para> + in this case, it is the largest requested value that is used to + compute the actual failed delay: here between 2 and 6 seconds. + </para> + </refsect1> + + <refsect1 id='pam_fail_delay-return_values'> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + Delay was successful adjusted. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SYSTEM_ERR</term> + <listitem> + <para> + A NULL pointer was submitted as PAM handle. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id='pam_fail_delay-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam_start</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_get_item</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + </para> + </refsect1> + + <refsect1 id='pam_fail_delay-standards'> + <title>STANDARDS</title> + <para> + The <function>pam_fail_delay</function> function is an + Linux-PAM extension. + </para> + </refsect1> + +</refentry> diff --git a/doc/man/pam_get_authtok.3 b/doc/man/pam_get_authtok.3 new file mode 100644 index 0000000..21e4777 --- /dev/null +++ b/doc/man/pam_get_authtok.3 @@ -0,0 +1,169 @@ +'\" t +.\" Title: pam_get_authtok +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_GET_AUTHTOK" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_get_authtok, pam_get_authtok_verify, pam_get_authtok_noverify \- get authentication token +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_ext\&.h> +.fi +.ft +.HP \w'int\ pam_get_authtok('u +.BI "int pam_get_authtok(pam_handle_t\ *" "pamh" ", int\ " "item" ", const\ char\ **" "authtok" ", const\ char\ *" "prompt" ");" +.HP \w'int\ pam_get_authtok_noverify('u +.BI "int pam_get_authtok_noverify(pam_handle_t\ *" "pamh" ", const\ char\ **" "authtok" ", const\ char\ *" "prompt" ");" +.HP \w'int\ pam_get_authtok_verify('u +.BI "int pam_get_authtok_verify(pam_handle_t\ *" "pamh" ", const\ char\ **" "authtok" ", const\ char\ *" "prompt" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_get_authtok\fR +function returns the cached authentication token, or prompts the user if no token is currently cached\&. It is intended for internal use by Linux\-PAM and PAM service modules\&. Upon successful return, +\fIauthtok\fR +contains a pointer to the value of the authentication token\&. Note, this is a pointer to the +\fIactual\fR +data and should +\fBnot\fR +be +\fIfree()\fR\*(Aqed or over\-written! +.PP +The +\fIprompt\fR +argument specifies a prompt to use if no token is cached\&. If a NULL pointer is given, +\fBpam_get_authtok\fR +uses pre\-defined prompts\&. +.PP +The following values are supported for +\fIitem\fR: +.PP +PAM_AUTHTOK +.RS 4 +Returns the current authentication token\&. Called from +\fBpam_sm_chauthtok\fR(3)\fBpam_get_authtok\fR +will ask the user to confirm the new token by retyping it\&. If a prompt was specified, "Retype" will be used as prefix\&. +.RE +.PP +PAM_OLDAUTHTOK +.RS 4 +Returns the previous authentication token when changing authentication tokens\&. +.RE +.PP +The +\fBpam_get_authtok_noverify\fR +function can only be used for changing the password (from +\fBpam_sm_chauthtok\fR(3))\&. It returns the cached authentication token, or prompts the user if no token is currently cached\&. The difference to +\fBpam_get_authtok\fR +is, that this function does not ask a second time for the password to verify it\&. Upon successful return, +\fIauthtok\fR +contains a pointer to the value of the authentication token\&. Note, this is a pointer to the +\fIactual\fR +data and should +\fBnot\fR +be +\fIfree()\fR\*(Aqed or over\-written! +.PP +The +\fBpam_get_authtok_verify\fR +function can only be used to verify a password for mistypes gotten by +\fBpam_get_authtok_noverify\fR(3)\&. This function asks a second time for the password and verify it with the password provided by +\fIauthtok\fR +argument\&. In case of an error, the value of +\fIauthtok\fR +is undefined\&. Else this argument will point to the +\fIactual\fR +data and should +\fBnot\fR +be +\fIfree()\fR\*(Aqed or over\-written! +.SH "OPTIONS" +.PP +\fBpam_get_authtok\fR +honours the following module options: +.PP +\fBtry_first_pass\fR +.RS 4 +Before prompting the user for their password, the module first tries the previous stacked module\*(Aqs password in case that satisfies this module as well\&. +.RE +.PP +\fBuse_first_pass\fR +.RS 4 +The argument +\fBuse_first_pass\fR +forces the module to use a previous stacked modules password and will never prompt the user \- if no password is available or the password is not appropriate, the user will be denied access\&. +.RE +.PP +\fBuse_authtok\fR +.RS 4 +When password changing enforce the module to set the new token to the one provided by a previously stacked +\fBpassword\fR +module\&. If no token is available token changing will fail\&. +.RE +.PP +\fBauthtok_type=\fR\fB\fIXXX\fR\fR +.RS 4 +The default action is for the module to use the following prompts when requesting passwords: "New UNIX password: " and "Retype UNIX password: "\&. The example word +\fIUNIX\fR +can be replaced with this option, by default it is empty\&. +.RE +.SH "RETURN VALUES" +.PP +PAM_AUTH_ERR +.RS 4 +Authentication token could not be retrieved\&. +.RE +.PP +PAM_AUTHTOK_ERR +.RS 4 +New authentication could not be retrieved\&. +.RE +.PP +PAM_SUCCESS +.RS 4 +Authentication token was successfully retrieved\&. +.RE +.PP +PAM_SYSTEM_ERR +.RS 4 +No space for an authentication token was provided\&. +.RE +.PP +PAM_TRY_AGAIN +.RS 4 +New authentication tokens mismatch\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam\fR(8) +.SH "STANDARDS" +.PP +The +\fBpam_get_authtok\fR +function is a Linux\-PAM extensions\&. diff --git a/doc/man/pam_get_authtok.3.xml b/doc/man/pam_get_authtok.3.xml new file mode 100644 index 0000000..5d50b16 --- /dev/null +++ b/doc/man/pam_get_authtok.3.xml @@ -0,0 +1,248 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> + +<refentry id="pam_get_authtok"> + + <refmeta> + <refentrytitle>pam_get_authtok</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_get_authtok-name"> + <refname>pam_get_authtok</refname> + <refname>pam_get_authtok_verify</refname> + <refname>pam_get_authtok_noverify</refname> + <refpurpose>get authentication token</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv id="pam_get_authtok-synopsis"> + <funcsynopsis> + <funcsynopsisinfo>#include <security/pam_ext.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_get_authtok</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>int <parameter>item</parameter></paramdef> + <paramdef>const char **<parameter>authtok</parameter></paramdef> + <paramdef>const char *<parameter>prompt</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef>int <function>pam_get_authtok_noverify</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>const char **<parameter>authtok</parameter></paramdef> + <paramdef>const char *<parameter>prompt</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef>int <function>pam_get_authtok_verify</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>const char **<parameter>authtok</parameter></paramdef> + <paramdef>const char *<parameter>prompt</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1 id='pam_get_authtok-description'> + <title>DESCRIPTION</title> + <para> + The <function>pam_get_authtok</function> function returns the + cached authentication token, or prompts the user if no token is + currently cached. It is intended for internal use by Linux-PAM and + PAM service modules. Upon successful return, + <emphasis>authtok</emphasis> contains a pointer to the value of the + authentication token. Note, this is a pointer to the + <emphasis>actual</emphasis> data and should + <emphasis remap="B">not</emphasis> be <emphasis>free()</emphasis>'ed or + over-written! + </para> + <para> + The <emphasis>prompt</emphasis> argument specifies a prompt to use + if no token is cached. If a NULL pointer + is given, <function>pam_get_authtok</function> uses pre-defined prompts. + </para> + <para> + The following values are supported for <emphasis>item</emphasis>: + </para> + <variablelist> + <varlistentry> + <term>PAM_AUTHTOK</term> + <listitem> + <para> + Returns the current authentication token. Called from + <citerefentry><refentrytitle>pam_sm_chauthtok</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> <function>pam_get_authtok</function> will + ask the user to confirm the new token by retyping it. If + a prompt was specified, "Retype" will be used as prefix. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_OLDAUTHTOK</term> + <listitem> + <para> + Returns the previous authentication token when changing + authentication tokens. + </para> + </listitem> + </varlistentry> + </variablelist> + <para> + The <function>pam_get_authtok_noverify</function> function can + only be used for changing the password + (from <citerefentry> + <refentrytitle>pam_sm_chauthtok</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>). It returns the cached + authentication token, or prompts the user if no token is + currently cached. The difference to <function>pam_get_authtok</function> + is, that this function does not ask a second time for the password + to verify it. Upon successful return, <emphasis>authtok</emphasis> + contains a pointer to the value of the authentication token. Note, + this is a pointer to the + <emphasis>actual</emphasis> data and should + <emphasis remap="B">not</emphasis> be <emphasis>free()</emphasis>'ed or + over-written! + </para> + <para> + The <function>pam_get_authtok_verify</function> function can + only be used to verify a password for mistypes gotten by + <citerefentry> + <refentrytitle>pam_get_authtok_noverify</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>. This function asks a second time for the password + and verify it with the password provided by <emphasis>authtok</emphasis> + argument. In case of an error, the value of <emphasis>authtok</emphasis> + is undefined. Else this argument will point to the + <emphasis>actual</emphasis> data and should + <emphasis remap="B">not</emphasis> be <emphasis>free()</emphasis>'ed or + over-written! + </para> + </refsect1> + + <refsect1 id="pam_get_authtok-options"> + <title>OPTIONS</title> + <para> + <function>pam_get_authtok</function> honours the following module + options: + </para> + <variablelist> + <varlistentry> + <term> + <option>try_first_pass</option> + </term> + <listitem> + <para> + Before prompting the user for their password, the module first + tries the previous stacked module's password in case that + satisfies this module as well. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term> + <option>use_first_pass</option> + </term> + <listitem> + <para> + The argument <option>use_first_pass</option> forces the module + to use a previous stacked modules password and will never prompt + the user - if no password is available or the password is not + appropriate, the user will be denied access. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term> + <option>use_authtok</option> + </term> + <listitem> + <para> + When password changing enforce the module to set the new + token to the one provided by a previously stacked + <option>password</option> module. If no token is available + token changing will fail. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term> + <option>authtok_type=<replaceable>XXX</replaceable></option> + </term> + <listitem> + <para> + The default action is for the module to use the + following prompts when requesting passwords: + "New UNIX password: " and "Retype UNIX password: ". + The example word <emphasis>UNIX</emphasis> can + be replaced with this option, by default it is empty. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + + <refsect1 id="pam_get_authtok-return_values"> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_AUTH_ERR</term> + <listitem> + <para> + Authentication token could not be retrieved. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_AUTHTOK_ERR</term> + <listitem> + <para> + New authentication could not be retrieved. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + Authentication token was successfully retrieved. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SYSTEM_ERR</term> + <listitem> + <para> + No space for an authentication token was provided. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_TRY_AGAIN</term> + <listitem> + <para> + New authentication tokens mismatch. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id='pam_get_authtok-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum> + </citerefentry> + </para> + </refsect1> + + <refsect1 id='pam_get_authtok-standards'> + <title>STANDARDS</title> + <para> + The <function>pam_get_authtok</function> function is a Linux-PAM + extensions. + </para> + </refsect1> + +</refentry> diff --git a/doc/man/pam_get_authtok_noverify.3 b/doc/man/pam_get_authtok_noverify.3 new file mode 100644 index 0000000..07acbd0 --- /dev/null +++ b/doc/man/pam_get_authtok_noverify.3 @@ -0,0 +1 @@ +.so pam_get_authtok.3 diff --git a/doc/man/pam_get_authtok_verify.3 b/doc/man/pam_get_authtok_verify.3 new file mode 100644 index 0000000..07acbd0 --- /dev/null +++ b/doc/man/pam_get_authtok_verify.3 @@ -0,0 +1 @@ +.so pam_get_authtok.3 diff --git a/doc/man/pam_get_data.3 b/doc/man/pam_get_data.3 new file mode 100644 index 0000000..2be35e8 --- /dev/null +++ b/doc/man/pam_get_data.3 @@ -0,0 +1,82 @@ +'\" t +.\" Title: pam_get_data +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_GET_DATA" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_get_data \- get module internal data +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_modules\&.h> +.fi +.ft +.HP \w'int\ pam_get_data('u +.BI "int pam_get_data(const\ pam_handle_t\ *" "pamh" ", const\ char\ *" "module_data_name" ", const\ void\ **" "data" ");" +.SH "DESCRIPTION" +.PP +This function together with the +\fBpam_set_data\fR(3) +function is useful to manage module\-specific data meaningful only to the calling PAM module\&. +.PP +The +\fBpam_get_data\fR +function looks up the object associated with the (hopefully) unique string +\fImodule_data_name\fR +in the PAM context specified by the +\fIpamh\fR +argument\&. A successful call to +\fBpam_get_data\fR +will result in +\fIdata\fR +pointing to the object\&. Note, this data is +\fInot\fR +a copy and should be treated as +\fIconstant\fR +by the module\&. +.SH "RETURN VALUES" +.PP +PAM_SUCCESS +.RS 4 +Data was successful retrieved\&. +.RE +.PP +PAM_SYSTEM_ERR +.RS 4 +A NULL pointer was submitted as PAM handle or the function was called by an application\&. +.RE +.PP +PAM_NO_MODULE_DATA +.RS 4 +Module data not found or there is an entry, but it has the value NULL\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam_end\fR(3), +\fBpam_set_data\fR(3), +\fBpam_strerror\fR(3) diff --git a/doc/man/pam_get_data.3.xml b/doc/man/pam_get_data.3.xml new file mode 100644 index 0000000..e84e5a4 --- /dev/null +++ b/doc/man/pam_get_data.3.xml @@ -0,0 +1,108 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> + +<refentry id='pam_get_data'> + + <refmeta> + <refentrytitle>pam_get_data</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id='pam_get_data-name'> + <refname>pam_get_data</refname> + <refpurpose> + get module internal data + </refpurpose> + </refnamediv> + + +<!-- body begins here --> + + <refsynopsisdiv> + + <funcsynopsis id="pam_get_data-synopsis"> + <funcsynopsisinfo>#include <security/pam_modules.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_get_data</function></funcdef> + <paramdef>const pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>const char *<parameter>module_data_name</parameter></paramdef> + <paramdef>const void **<parameter>data</parameter></paramdef> + </funcprototype> + </funcsynopsis> + + </refsynopsisdiv> + + + <refsect1 id="pam_get_data-description"> + <title>DESCRIPTION</title> + <para> + This function together with the + <citerefentry> + <refentrytitle>pam_set_data</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> function + is useful to manage module-specific data meaningful only to + the calling PAM module. + </para> + <para> + The <function>pam_get_data</function> function looks up the + object associated with the (hopefully) unique string + <emphasis>module_data_name</emphasis> in the PAM context + specified by the <emphasis>pamh</emphasis> argument. + A successful call to + <function>pam_get_data</function> will result in + <emphasis>data</emphasis> pointing to the object. Note, + this data is <emphasis>not</emphasis> a copy and should be + treated as <emphasis>constant</emphasis> by the module. + </para> + </refsect1> + + <refsect1 id="pam_get_data-return_values"> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + Data was successful retrieved. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SYSTEM_ERR</term> + <listitem> + <para> + A NULL pointer was submitted as PAM handle or the + function was called by an application. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_NO_MODULE_DATA</term> + <listitem> + <para> + Module data not found or there is an entry, but it has + the value NULL. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id="pam_get_data-see_also"> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam_end</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_set_data</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/doc/man/pam_get_item.3 b/doc/man/pam_get_item.3 new file mode 100644 index 0000000..dcde4da --- /dev/null +++ b/doc/man/pam_get_item.3 @@ -0,0 +1,196 @@ +'\" t +.\" Title: pam_get_item +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_GET_ITEM" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_get_item \- getting PAM informations +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_modules\&.h> +.fi +.ft +.HP \w'int\ pam_get_item('u +.BI "int pam_get_item(const\ pam_handle_t\ *" "pamh" ", int\ " "item_type" ", const\ void\ **" "item" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_get_item\fR +function allows applications and PAM service modules to access and retrieve PAM informations of +\fIitem_type\fR\&. Upon successful return, +\fIitem\fR +contains a pointer to the value of the corresponding item\&. Note, this is a pointer to the +\fIactual\fR +data and should +\fBnot\fR +be +\fIfree()\fR\*(Aqed or over\-written! The following values are supported for +\fIitem_type\fR: +.PP +PAM_SERVICE +.RS 4 +The service name (which identifies that PAM stack that the PAM functions will use to authenticate the program)\&. +.RE +.PP +PAM_USER +.RS 4 +The username of the entity under whose identity service will be given\&. That is, following authentication, +\fIPAM_USER\fR +identifies the local entity that gets to use the service\&. Note, this value can be mapped from something (eg\&., "anonymous") to something else (eg\&. "guest119") by any module in the PAM stack\&. As such an application should consult the value of +\fIPAM_USER\fR +after each call to a PAM function\&. +.RE +.PP +PAM_USER_PROMPT +.RS 4 +The string used when prompting for a user\*(Aqs name\&. The default value for this string is a localized version of "login: "\&. +.RE +.PP +PAM_TTY +.RS 4 +The terminal name: prefixed by +/dev/ +if it is a device file; for graphical, X\-based, applications the value for this item should be the +\fI$DISPLAY\fR +variable\&. +.RE +.PP +PAM_RUSER +.RS 4 +The requesting user name: local name for a locally requesting user or a remote user name for a remote requesting user\&. +.sp +Generally an application or module will attempt to supply the value that is most strongly authenticated (a local account before a remote one\&. The level of trust in this value is embodied in the actual authentication stack associated with the application, so it is ultimately at the discretion of the system administrator\&. +.sp +\fIPAM_RUSER@PAM_RHOST\fR +should always identify the requesting user\&. In some cases, +\fIPAM_RUSER\fR +may be NULL\&. In such situations, it is unclear who the requesting entity is\&. +.RE +.PP +PAM_RHOST +.RS 4 +The requesting hostname (the hostname of the machine from which the +\fIPAM_RUSER\fR +entity is requesting service)\&. That is +\fIPAM_RUSER@PAM_RHOST\fR +does identify the requesting user\&. In some applications, +\fIPAM_RHOST\fR +may be NULL\&. In such situations, it is unclear where the authentication request is originating from\&. +.RE +.PP +PAM_AUTHTOK +.RS 4 +The authentication token (often a password)\&. This token should be ignored by all module functions besides +\fBpam_sm_authenticate\fR(3) +and +\fBpam_sm_chauthtok\fR(3)\&. In the former function it is used to pass the most recent authentication token from one stacked module to another\&. In the latter function the token is used for another purpose\&. It contains the currently active authentication token\&. +.RE +.PP +PAM_OLDAUTHTOK +.RS 4 +The old authentication token\&. This token should be ignored by all module functions except +\fBpam_sm_chauthtok\fR(3)\&. +.RE +.PP +PAM_CONV +.RS 4 +The pam_conv structure\&. See +\fBpam_conv\fR(3)\&. +.RE +.PP +The following additional items are specific to Linux\-PAM and should not be used in portable applications: +.PP +PAM_FAIL_DELAY +.RS 4 +A function pointer to redirect centrally managed failure delays\&. See +\fBpam_fail_delay\fR(3)\&. +.RE +.PP +PAM_XDISPLAY +.RS 4 +The name of the X display\&. For graphical, X\-based applications the value for this item should be the +\fI$DISPLAY\fR +variable\&. This value may be used independently of +\fIPAM_TTY\fR +for passing the name of the display\&. +.RE +.PP +PAM_XAUTHDATA +.RS 4 +A pointer to a structure containing the X authentication data required to make a connection to the display specified by +\fIPAM_XDISPLAY\fR, if such information is necessary\&. See +\fBpam_xauth_data\fR(3)\&. +.RE +.PP +PAM_AUTHTOK_TYPE +.RS 4 +The default action is for the module to use the following prompts when requesting passwords: "New UNIX password: " and "Retype UNIX password: "\&. The example word +\fIUNIX\fR +can be replaced with this item, by default it is empty\&. This item is used by +\fBpam_get_authtok\fR(3)\&. +.RE +.PP +If a service module wishes to obtain the name of the user, it should not use this function, but instead perform a call to +\fBpam_get_user\fR(3)\&. +.PP +Only a service module is privileged to read the authentication tokens, PAM_AUTHTOK and PAM_OLDAUTHTOK\&. +.SH "RETURN VALUES" +.PP +PAM_BAD_ITEM +.RS 4 +The application attempted to set an undefined or inaccessible item\&. +.RE +.PP +PAM_BUF_ERR +.RS 4 +Memory buffer error\&. +.RE +.PP +PAM_PERM_DENIED +.RS 4 +The value of +\fIitem\fR +was NULL\&. +.RE +.PP +PAM_SUCCESS +.RS 4 +Data was successful updated\&. +.RE +.PP +PAM_SYSTEM_ERR +.RS 4 +The +\fIpam_handle_t\fR +passed as first argument was invalid\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam_set_item\fR(3), +\fBpam_strerror\fR(3) diff --git a/doc/man/pam_get_item.3.xml b/doc/man/pam_get_item.3.xml new file mode 100644 index 0000000..d07862e --- /dev/null +++ b/doc/man/pam_get_item.3.xml @@ -0,0 +1,143 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" +[ +<!-- +<!ENTITY accessconf SYSTEM "pam_item_types_std.inc.xml"> +<!ENTITY accessconf SYSTEM "pam_item_types_ext.inc.xml"> +--> +]> + +<refentry id='pam_get_item'> + + <refmeta> + <refentrytitle>pam_get_item</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id='pam_get_item-name'> + <refname>pam_get_item</refname> + <refpurpose> + getting PAM informations + </refpurpose> + </refnamediv> + + +<!-- body begins here --> + + <refsynopsisdiv> + + <funcsynopsis id="pam_get_item-synopsis"> + <funcsynopsisinfo>#include <security/pam_modules.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_get_item</function></funcdef> + <paramdef>const pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>int <parameter>item_type</parameter></paramdef> + <paramdef>const void **<parameter>item</parameter></paramdef> + </funcprototype> + </funcsynopsis> + + </refsynopsisdiv> + + + <refsect1 id="pam_get_item-description"> + <title>DESCRIPTION</title> + <para> + The <function>pam_get_item</function> function allows applications + and PAM service modules to access and retrieve PAM informations + of <emphasis>item_type</emphasis>. Upon successful return, + <emphasis>item</emphasis> contains a pointer to the value of the + corresponding item. Note, this is a pointer to the + <emphasis>actual</emphasis> data and should + <emphasis remap="B">not</emphasis> be <emphasis>free()</emphasis>'ed or + over-written! The following values are supported for + <emphasis>item_type</emphasis>: + </para> + + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_item_types_std.inc.xml"/> + + <para> + The following additional items are specific to Linux-PAM and should not be used in + portable applications: + </para> + + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_item_types_ext.inc.xml"/> + + <para> + If a service module wishes to obtain the name of the user, + it should not use this function, but instead perform a call to + <citerefentry> + <refentrytitle>pam_get_user</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>. + </para> + <para> + Only a service module is privileged to read the + authentication tokens, PAM_AUTHTOK and PAM_OLDAUTHTOK. + </para> + + </refsect1> + + <refsect1 id="pam_get_item-return_values"> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_BAD_ITEM</term> + <listitem> + <para> + The application attempted to set an undefined or inaccessible + item. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_BUF_ERR</term> + <listitem> + <para> + Memory buffer error. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_PERM_DENIED</term> + <listitem> + <para> + The value of <emphasis>item</emphasis> was NULL. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + Data was successful updated. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SYSTEM_ERR</term> + <listitem> + <para> + The <emphasis>pam_handle_t</emphasis> passed as first + argument was invalid. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id="pam_get_item-see_also"> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam_set_item</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/doc/man/pam_get_user.3 b/doc/man/pam_get_user.3 new file mode 100644 index 0000000..397f079 --- /dev/null +++ b/doc/man/pam_get_user.3 @@ -0,0 +1,123 @@ +'\" t +.\" Title: pam_get_user +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2018 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_GET_USER" "3" "05/18/2018" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_get_user \- get user name +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_modules\&.h> +.fi +.ft +.HP \w'int\ pam_get_user('u +.BI "int pam_get_user(const\ pam_handle_t\ *" "pamh" ", const\ char\ **" "user" ", const\ char\ *" "prompt" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_get_user\fR +function returns the name of the user specified by +\fBpam_start\fR(3)\&. If no user was specified it returns what +\fBpam_get_item (pamh, PAM_USER, \&.\&.\&. );\fR +would have returned\&. If this is NULL it obtains the username via the +\fBpam_conv\fR(3) +mechanism, it prompts the user with the first non\-NULL string in the following list: +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +The +\fIprompt\fR +argument passed to the function\&. +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +What is returned by pam_get_item (pamh, PAM_USER_PROMPT, \&.\&.\&. ); +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +The default prompt: "login: " +.RE +.PP +By whatever means the username is obtained, a pointer to it is returned as the contents of +\fI*user\fR\&. Note, this memory should +\fBnot\fR +be +\fIfree()\fR\*(Aqd or +\fImodified\fR +by the module\&. +.PP +This function sets the +\fIPAM_USER\fR +item associated with the +\fBpam_set_item\fR(3) +and +\fBpam_get_item\fR(3) +functions\&. +.SH "RETURN VALUES" +.PP +PAM_SUCCESS +.RS 4 +User name was successful retrieved\&. +.RE +.PP +PAM_SYSTEM_ERR +.RS 4 +A NULL pointer was submitted\&. +.RE +.PP +PAM_CONV_ERR +.RS 4 +The conversation method supplied by the application failed to obtain the username\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam_end\fR(3), +\fBpam_get_item\fR(3), +\fBpam_set_item\fR(3), +\fBpam_strerror\fR(3) diff --git a/doc/man/pam_get_user.3.xml b/doc/man/pam_get_user.3.xml new file mode 100644 index 0000000..16ef548 --- /dev/null +++ b/doc/man/pam_get_user.3.xml @@ -0,0 +1,139 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> + +<refentry id='pam_get_user'> + + <refmeta> + <refentrytitle>pam_get_user</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id='pam_get_user-name'> + <refname>pam_get_user</refname> + <refpurpose> + get user name + </refpurpose> + </refnamediv> + + +<!-- body begins here --> + + <refsynopsisdiv> + + <funcsynopsis id="pam_get_user-synopsis"> + <funcsynopsisinfo>#include <security/pam_modules.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_get_user</function></funcdef> + <paramdef>const pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>const char **<parameter>user</parameter></paramdef> + <paramdef>const char *<parameter>prompt</parameter></paramdef> + </funcprototype> + </funcsynopsis> + + </refsynopsisdiv> + + + <refsect1 id="pam_get_user-description"> + <title>DESCRIPTION</title> + <para> + The <function>pam_get_user</function> function returns the + name of the user specified by + <citerefentry> + <refentrytitle>pam_start</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>. If no user was specified it returns what + <function>pam_get_item (pamh, PAM_USER, ... );</function> would + have returned. If this is NULL it obtains the username via the + <citerefentry> + <refentrytitle>pam_conv</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> mechanism, it prompts the user with the first + non-NULL string in the following list: + </para> + + <itemizedlist> + <listitem> + <para> + The <emphasis>prompt</emphasis> argument passed to the function. + </para> + </listitem> + <listitem> + <para> + What is returned by pam_get_item (pamh, PAM_USER_PROMPT, ... ); + </para> + </listitem> + <listitem> + <para> + The default prompt: "login: " + </para> + </listitem> + </itemizedlist> + <para> + By whatever means the username is obtained, a pointer to it is + returned as the contents of <emphasis>*user</emphasis>. Note, + this memory should <emphasis remap="B">not</emphasis> be + <emphasis>free()</emphasis>'d or <emphasis>modified</emphasis> + by the module. + </para> + <para> + This function sets the <emphasis>PAM_USER</emphasis> item + associated with the + <citerefentry> + <refentrytitle>pam_set_item</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> and + <citerefentry> + <refentrytitle>pam_get_item</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> functions. + </para> + </refsect1> + + <refsect1 id="pam_get_user-return_values"> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + User name was successful retrieved. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SYSTEM_ERR</term> + <listitem> + <para> + A NULL pointer was submitted. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_CONV_ERR</term> + <listitem> + <para> + The conversation method supplied by the + application failed to obtain the username. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id="pam_get_user-see_also"> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam_end</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_get_item</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_set_item</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/doc/man/pam_getenv.3 b/doc/man/pam_getenv.3 new file mode 100644 index 0000000..ea47fe3 --- /dev/null +++ b/doc/man/pam_getenv.3 @@ -0,0 +1,60 @@ +'\" t +.\" Title: pam_getenv +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_GETENV" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_getenv \- get a PAM environment variable +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_appl\&.h> +.fi +.ft +.HP \w'const\ char\ *pam_getenv('u +.BI "const char *pam_getenv(pam_handle_t\ *" "pamh" ", const\ char\ *" "name" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_getenv\fR +function searches the PAM environment list as associated with the handle +\fIpamh\fR +for an item that matches the string pointed to by +\fIname\fR +and returns a pointer to the value of the environment variable\&. The application is not allowed to free the data\&. +.SH "RETURN VALUES" +.PP +The +\fBpam_getenv\fR +function returns NULL on failure\&. +.SH "SEE ALSO" +.PP +\fBpam_start\fR(3), +\fBpam_getenvlist\fR(3), +\fBpam_putenv\fR(3), +\fBpam\fR(8) diff --git a/doc/man/pam_getenv.3.xml b/doc/man/pam_getenv.3.xml new file mode 100644 index 0000000..7e8db01 --- /dev/null +++ b/doc/man/pam_getenv.3.xml @@ -0,0 +1,67 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> +<refentry id='pam_getenv'> + <refmeta> + <refentrytitle>pam_getenv</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_getenv-name"> + <refname>pam_getenv</refname> + <refpurpose>get a PAM environment variable</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv> + <funcsynopsis id='pam_getenv-synopsis'> + <funcsynopsisinfo>#include <security/pam_appl.h></funcsynopsisinfo> + <funcprototype> + <funcdef>const char *<function>pam_getenv</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>const char *<parameter>name</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + + <refsect1 id='pam_getenv-description'> + <title>DESCRIPTION</title> + <para> + The <function>pam_getenv</function> function searches the + PAM environment list as associated with the handle + <emphasis>pamh</emphasis> for an item that matches the string + pointed to by <emphasis>name</emphasis> and returns a pointer + to the value of the environment variable. The application is + not allowed to free the data. + </para> + </refsect1> + + <refsect1 id="pam_getenv-return_values"> + <title>RETURN VALUES</title> + <para> + The <function>pam_getenv</function> function returns NULL + on failure. + </para> + </refsect1> + + <refsect1 id='pam_getenv-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam_start</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_getenvlist</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_putenv</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum> + </citerefentry> + </para> + </refsect1> +</refentry> diff --git a/doc/man/pam_getenvlist.3 b/doc/man/pam_getenvlist.3 new file mode 100644 index 0000000..945cc90 --- /dev/null +++ b/doc/man/pam_getenvlist.3 @@ -0,0 +1,66 @@ +'\" t +.\" Title: pam_getenvlist +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_GETENVLIST" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_getenvlist \- getting the PAM environment +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_appl\&.h> +.fi +.ft +.HP \w'char\ **pam_getenvlist('u +.BI "char **pam_getenvlist(pam_handle_t\ *" "pamh" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_getenvlist\fR +function returns a complete copy of the PAM environment as associated with the handle +\fIpamh\fR\&. The PAM environment variables represent the contents of the regular environment variables of the authenticated user when service is granted\&. +.PP +The format of the memory is a malloc()\*(Aqd array of char pointers, the last element of which is set to NULL\&. Each of the non\-NULL entries in this array point to a NUL terminated and malloc()\*(Aqd char string of the form: "\fIname=value\fR"\&. +.PP +It should be noted that this memory will never be free()\*(Aqd by libpam\&. Once obtained by a call to +\fBpam_getenvlist\fR, it is the responsibility of the calling application to free() this memory\&. +.PP +It is by design, and not a coincidence, that the format and contents of the returned array matches that required for the third argument of the +\fBexecle\fR(3) +function call\&. +.SH "RETURN VALUES" +.PP +The +\fBpam_getenvlist\fR +function returns NULL on failure\&. +.SH "SEE ALSO" +.PP +\fBpam_start\fR(3), +\fBpam_getenv\fR(3), +\fBpam_putenv\fR(3), +\fBpam\fR(8) diff --git a/doc/man/pam_getenvlist.3.xml b/doc/man/pam_getenvlist.3.xml new file mode 100644 index 0000000..1c29b73 --- /dev/null +++ b/doc/man/pam_getenvlist.3.xml @@ -0,0 +1,85 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> +<refentry id='pam_getenvlist'> + <refmeta> + <refentrytitle>pam_getenvlist</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_getenvlist-name"> + <refname>pam_getenvlist</refname> + <refpurpose>getting the PAM environment</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv> + <funcsynopsis id='pam_getenvlist-synopsis'> + <funcsynopsisinfo>#include <security/pam_appl.h></funcsynopsisinfo> + <funcprototype> + <funcdef>char **<function>pam_getenvlist</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + + <refsect1 id='pam_getenvlist-description'> + <title>DESCRIPTION</title> + <para> + The <function>pam_getenvlist</function> function returns a complete + copy of the PAM environment as associated with the handle + <emphasis>pamh</emphasis>. The PAM environment variables + represent the contents of the regular environment variables of the + authenticated user when service is granted. + </para> + <para> + The format of the memory is a malloc()'d array of char pointers, + the last element of which is set to NULL. Each of the non-NULL + entries in this array point to a NUL terminated and malloc()'d + char string of the form: "<emphasis>name=value</emphasis>". + </para> + <para> + It should be noted that this memory will never be free()'d by + libpam. Once obtained by a call to + <function>pam_getenvlist</function>, it is the responsibility of + the calling application to free() this memory. + </para> + <para> + It is by design, and not a coincidence, that the format and contents + of the returned array matches that required for the third argument of + the + <citerefentry> + <refentrytitle>execle</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> function call. + </para> + </refsect1> + + <refsect1 id="pam_getenvlist-return_values"> + <title>RETURN VALUES</title> + <para> + The <function>pam_getenvlist</function> function returns NULL + on failure. + </para> + </refsect1> + + <refsect1 id='pam_getenvlist-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam_start</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_getenv</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_putenv</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum> + </citerefentry> + </para> + </refsect1> +</refentry> diff --git a/doc/man/pam_info.3 b/doc/man/pam_info.3 new file mode 100644 index 0000000..0d50a2f --- /dev/null +++ b/doc/man/pam_info.3 @@ -0,0 +1,86 @@ +'\" t +.\" Title: pam_info +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_INFO" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_info, pam_vinfo \- display messages to the user +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_ext\&.h> +.fi +.ft +.HP \w'int\ pam_info('u +.BI "int pam_info(pam_handle_t\ *" "pamh" ", const\ char\ *" "fmt" ", " "\&.\&.\&." ");" +.HP \w'int\ pam_vinfo('u +.BI "int pam_vinfo(pam_handle_t\ *" "pamh" ", const\ char\ *" "fmt" ", va_list\ " "args" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_info\fR +function prints messages through the conversation function to the user\&. +.PP +The +\fBpam_vinfo\fR +function performs the same task as +\fBpam_info()\fR +with the difference that it takes a set of arguments which have been obtained using the +\fBstdarg\fR(3) +variable argument list macros\&. +.SH "RETURN VALUES" +.PP +PAM_BUF_ERR +.RS 4 +Memory buffer error\&. +.RE +.PP +PAM_CONV_ERR +.RS 4 +Conversation failure\&. +.RE +.PP +PAM_SUCCESS +.RS 4 +Transaction was successful created\&. +.RE +.PP +PAM_SYSTEM_ERR +.RS 4 +System error\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam\fR(8) +.SH "STANDARDS" +.PP +The +\fBpam_info\fR +and +\fBpam_vinfo\fR +functions are Linux\-PAM extensions\&. diff --git a/doc/man/pam_info.3.xml b/doc/man/pam_info.3.xml new file mode 100644 index 0000000..88e671c --- /dev/null +++ b/doc/man/pam_info.3.xml @@ -0,0 +1,109 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> + +<refentry id="pam_info"> + + <refmeta> + <refentrytitle>pam_info</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_info-name"> + <refname>pam_info</refname> + <refname>pam_vinfo</refname> + <refpurpose>display messages to the user</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv id="pam_info-synopsis"> + <funcsynopsis> + <funcsynopsisinfo>#include <security/pam_ext.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_info</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>const char *<parameter>fmt</parameter></paramdef> + <paramdef><parameter>...</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef>int <function>pam_vinfo</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>const char *<parameter>fmt</parameter></paramdef> + <paramdef>va_list <parameter>args</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1 id='pam_info-description'> + <title>DESCRIPTION</title> + <para> + The <function>pam_info</function> function prints messages + through the conversation function to the user. + </para> + <para> + The <function>pam_vinfo</function> function performs the same + task as <function>pam_info()</function> with the difference + that it takes a set of arguments which have been obtained using + the <citerefentry> + <refentrytitle>stdarg</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> variable argument list macros. + </para> + </refsect1> + <refsect1 id="pam_info-return_values"> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_BUF_ERR</term> + <listitem> + <para> + Memory buffer error. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_CONV_ERR</term> + <listitem> + <para> + Conversation failure. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + Transaction was successful created. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SYSTEM_ERR</term> + <listitem> + <para> + System error. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id='pam_info-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum> + </citerefentry> + </para> + </refsect1> + + <refsect1 id='pam_info-standards'> + <title>STANDARDS</title> + <para> + The <function>pam_info</function> and <function>pam_vinfo</function> + functions are Linux-PAM extensions. + </para> + </refsect1> + +</refentry> diff --git a/doc/man/pam_item_types_ext.inc.xml b/doc/man/pam_item_types_ext.inc.xml new file mode 100644 index 0000000..d36a5bd --- /dev/null +++ b/doc/man/pam_item_types_ext.inc.xml @@ -0,0 +1,61 @@ +<!-- this file is included by pam_set_item and pam_get_item --> + + <variablelist> + <varlistentry> + <term>PAM_FAIL_DELAY</term> + <listitem> + <para> + A function pointer to redirect centrally managed + failure delays. See + <citerefentry> + <refentrytitle>pam_fail_delay</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>. + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term>PAM_XDISPLAY</term> + <listitem> + <para> + The name of the X display. For graphical, X-based applications the + value for this item should be the <emphasis>$DISPLAY</emphasis> + variable. This value may be used independently of + <emphasis>PAM_TTY</emphasis> for passing the + name of the display. + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term>PAM_XAUTHDATA</term> + <listitem> + <para> + A pointer to a structure containing the X authentication data + required to make a connection to the display specified by + <emphasis>PAM_XDISPLAY</emphasis>, if such information is + necessary. See + <citerefentry> + <refentrytitle>pam_xauth_data</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>. + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term>PAM_AUTHTOK_TYPE</term> + <listitem> + <para> + The default action is for the module to use the + following prompts when requesting passwords: + "New UNIX password: " and "Retype UNIX password: ". + The example word <emphasis>UNIX</emphasis> can + be replaced with this item, by default it is empty. + This item is used by <citerefentry> + <refentrytitle>pam_get_authtok</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>. + </para> + </listitem> + </varlistentry> + + </variablelist> diff --git a/doc/man/pam_item_types_std.inc.xml b/doc/man/pam_item_types_std.inc.xml new file mode 100644 index 0000000..81f240b --- /dev/null +++ b/doc/man/pam_item_types_std.inc.xml @@ -0,0 +1,138 @@ +<!-- this file is included by pam_set_item and pam_get_item --> + + <variablelist> + <varlistentry> + <term>PAM_SERVICE</term> + <listitem> + <para> + The service name (which identifies that PAM stack that + the PAM functions will use to authenticate the program). + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term>PAM_USER</term> + <listitem> + <para> + The username of the entity under whose identity service + will be given. That is, following authentication, + <emphasis>PAM_USER</emphasis> identifies the local entity + that gets to use the service. Note, this value can be mapped + from something (eg., "anonymous") to something else (eg. + "guest119") by any module in the PAM stack. As such an + application should consult the value of + <emphasis>PAM_USER</emphasis> after each call to a PAM function. + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term>PAM_USER_PROMPT</term> + <listitem> + <para> + The string used when prompting for a user's name. The default + value for this string is a localized version of "login: ". + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term>PAM_TTY</term> + <listitem> + <para> + The terminal name: prefixed by <filename>/dev/</filename> if + it is a device file; for graphical, X-based, applications the + value for this item should be the + <emphasis>$DISPLAY</emphasis> variable. + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term>PAM_RUSER</term> + <listitem> + <para> + The requesting user name: local name for a locally + requesting user or a remote user name for a remote + requesting user. + </para> + <para> + Generally an application or module will attempt to supply + the value that is most strongly authenticated (a local account + before a remote one. The level of trust in this value is + embodied in the actual authentication stack associated with + the application, so it is ultimately at the discretion of the + system administrator. + </para> + <para> + <emphasis>PAM_RUSER@PAM_RHOST</emphasis> should always identify + the requesting user. In some cases, + <emphasis>PAM_RUSER</emphasis> may be NULL. In such situations, + it is unclear who the requesting entity is. + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term>PAM_RHOST</term> + <listitem> + <para> + The requesting hostname (the hostname of the machine from + which the <emphasis>PAM_RUSER</emphasis> entity is requesting + service). That is <emphasis>PAM_RUSER@PAM_RHOST</emphasis> + does identify the requesting user. In some applications, + <emphasis>PAM_RHOST</emphasis> may be NULL. In such situations, + it is unclear where the authentication request is originating + from. + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term>PAM_AUTHTOK</term> + <listitem> + <para> + The authentication token (often a password). This token + should be ignored by all module functions besides + <citerefentry> + <refentrytitle>pam_sm_authenticate</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> and + <citerefentry> + <refentrytitle>pam_sm_chauthtok</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>. + In the former function it is used to pass the most recent + authentication token from one stacked module to another. In + the latter function the token is used for another purpose. + It contains the currently active authentication token. + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term>PAM_OLDAUTHTOK</term> + <listitem> + <para> + The old authentication token. This token should be ignored + by all module functions except + <citerefentry> + <refentrytitle>pam_sm_chauthtok</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>. + </para> + </listitem> + </varlistentry> + + + <varlistentry> + <term>PAM_CONV</term> + <listitem> + <para> + The pam_conv structure. See + <citerefentry> + <refentrytitle>pam_conv</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>. + </para> + </listitem> + </varlistentry> + + </variablelist> diff --git a/doc/man/pam_misc_drop_env.3 b/doc/man/pam_misc_drop_env.3 new file mode 100644 index 0000000..89b7301 --- /dev/null +++ b/doc/man/pam_misc_drop_env.3 @@ -0,0 +1,62 @@ +'\" t +.\" Title: pam_misc_drop_env +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_MISC_DROP_ENV" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_misc_drop_env \- liberating a locally saved environment +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_misc\&.h> +.fi +.ft +.HP \w'int\ pam_misc_drop_env('u +.BI "int pam_misc_drop_env(char\ **" "env" ");" +.SH "DESCRIPTION" +.PP +This function is defined to complement the +\fBpam_getenvlist\fR(3) +function\&. It liberates the memory associated with +\fIenv\fR, +\fIoverwriting\fR +with +\fI0\fR +all memory before +\fBfree()\fRing it\&. +.SH "SEE ALSO" +.PP +\fBpam_getenvlist\fR(3), +\fBpam\fR(8) +.SH "STANDARDS" +.PP +The +\fBpam_misc_drop_env\fR +function is part of the +\fBlibpam_misc\fR +Library and not defined in any standard\&. diff --git a/doc/man/pam_misc_drop_env.3.xml b/doc/man/pam_misc_drop_env.3.xml new file mode 100644 index 0000000..1941f58 --- /dev/null +++ b/doc/man/pam_misc_drop_env.3.xml @@ -0,0 +1,63 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> + +<refentry id="pam_misc_drop_env"> + + <refmeta> + <refentrytitle>pam_misc_drop_env</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_misc_drop_env-name"> + <refname>pam_misc_drop_env</refname> + <refpurpose>liberating a locally saved environment</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv> + <funcsynopsis id="pam_misc_drop_env-synopsis"> + <funcsynopsisinfo>#include <security/pam_misc.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_misc_drop_env</function></funcdef> + <paramdef>char **<parameter>env</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1 id='pam_misc_drop_env-description'> + <title>DESCRIPTION</title> + <para> + This function is defined to complement the <citerefentry> + <refentrytitle>pam_getenvlist</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> function. It liberates the memory associated + with <parameter>env</parameter>, <emphasis>overwriting</emphasis> + with <emphasis>0</emphasis> all memory before + <function>free()</function>ing it. + </para> + </refsect1> + + <refsect1 id='pam_misc_drop_env-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam_getenvlist</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum> + </citerefentry> + </para> + </refsect1> + + <refsect1 id='pam_misc_drop_env-standards'> + <title>STANDARDS</title> + <para> + The <function>pam_misc_drop_env</function> function is part of the + <command>libpam_misc</command> Library and not defined in any + standard. + </para> + </refsect1> + +</refentry> diff --git a/doc/man/pam_misc_paste_env.3 b/doc/man/pam_misc_paste_env.3 new file mode 100644 index 0000000..f94f14e --- /dev/null +++ b/doc/man/pam_misc_paste_env.3 @@ -0,0 +1,57 @@ +'\" t +.\" Title: pam_misc_paste_env +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_MISC_PASTE_ENV" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_misc_paste_env \- transcribing an environment to that of PAM +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_misc\&.h> +.fi +.ft +.HP \w'int\ pam_misc_paste_env('u +.BI "int pam_misc_paste_env(pam_handle_t\ *" "pamh" ", const\ char\ *\ const\ *" "user" ");" +.SH "DESCRIPTION" +.PP +This function takes the supplied list of environment pointers and +\fIuploads\fR +its contents to the PAM environment\&. Success is indicated by +PAM_SUCCESS\&. +.SH "SEE ALSO" +.PP +\fBpam_putenv\fR(3), +\fBpam\fR(8) +.SH "STANDARDS" +.PP +The +\fBpam_misc_paste_env\fR +function is part of the +\fBlibpam_misc\fR +Library and not defined in any standard\&. diff --git a/doc/man/pam_misc_paste_env.3.xml b/doc/man/pam_misc_paste_env.3.xml new file mode 100644 index 0000000..d9a282c --- /dev/null +++ b/doc/man/pam_misc_paste_env.3.xml @@ -0,0 +1,61 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> + +<refentry id="pam_misc_paste_env"> + + <refmeta> + <refentrytitle>pam_misc_paste_env</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_misc_paste_env-name"> + <refname>pam_misc_paste_env</refname> + <refpurpose>transcribing an environment to that of PAM</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv> + <funcsynopsis id="pam_misc_paste_env-synopsis"> + <funcsynopsisinfo>#include <security/pam_misc.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_misc_paste_env</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>const char * const *<parameter>user</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1 id='pam_misc_paste_env-description'> + <title>DESCRIPTION</title> + <para> + This function takes the supplied list of environment pointers and + <emphasis>uploads</emphasis> its contents to the PAM environment. + Success is indicated by <errorname>PAM_SUCCESS</errorname>. + </para> + </refsect1> + + <refsect1 id='pam_misc_paste_env-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam_putenv</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum> + </citerefentry> + </para> + </refsect1> + + <refsect1 id='pam_misc_paste_env-standards'> + <title>STANDARDS</title> + <para> + The <function>pam_misc_paste_env</function> function is part of the + <command>libpam_misc</command> Library and not defined in any + standard. + </para> + </refsect1> + +</refentry> diff --git a/doc/man/pam_misc_setenv.3 b/doc/man/pam_misc_setenv.3 new file mode 100644 index 0000000..06caaeb --- /dev/null +++ b/doc/man/pam_misc_setenv.3 @@ -0,0 +1,62 @@ +'\" t +.\" Title: pam_misc_setenv +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_MISC_SETENV" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_misc_setenv \- BSD like PAM environment variable setting +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_misc\&.h> +.fi +.ft +.HP \w'int\ pam_misc_setenv('u +.BI "int pam_misc_setenv(pam_handle_t\ *" "pamh" ", const\ char\ *" "name" ", const\ char\ *" "value" ", int\ " "readonly" ");" +.SH "DESCRIPTION" +.PP +This function performs a task equivalent to +\fBpam_putenv\fR(3), its syntax is, however, more like the BSD style function; +\fBsetenv()\fR\&. The +\fIname\fR +and +\fIvalue\fR +are concatenated with an \*(Aq=\*(Aq to form a name=value and passed to +\fBpam_putenv()\fR\&. If, however, the PAM variable is already set, the replacement will only be applied if the last argument, +\fIreadonly\fR, is zero\&. +.SH "SEE ALSO" +.PP +\fBpam_putenv\fR(3), +\fBpam\fR(8) +.SH "STANDARDS" +.PP +The +\fBpam_misc_setenv\fR +function is part of the +\fBlibpam_misc\fR +Library and not defined in any standard\&. diff --git a/doc/man/pam_misc_setenv.3.xml b/doc/man/pam_misc_setenv.3.xml new file mode 100644 index 0000000..7e61a8d --- /dev/null +++ b/doc/man/pam_misc_setenv.3.xml @@ -0,0 +1,68 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> + +<refentry id="pam_misc_setenv"> + + <refmeta> + <refentrytitle>pam_misc_setenv</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + <refnamediv id="pam_misc_setenv-name"> + <refname>pam_misc_setenv</refname> + <refpurpose>BSD like PAM environment variable setting</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv> + <funcsynopsis id="pam_misc_setenv-synopsis"> + <funcsynopsisinfo>#include <security/pam_misc.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_misc_setenv</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>const char *<parameter>name</parameter></paramdef> + <paramdef>const char *<parameter>value</parameter></paramdef> + <paramdef>int <parameter>readonly</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1 id='pam_misc_setenv-description'> + <title>DESCRIPTION</title> + <para> + This function performs a task equivalent to <citerefentry> + <refentrytitle>pam_putenv</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, its syntax is, however, more like the BSD style + function; <function>setenv()</function>. The <parameter>name</parameter> + and <parameter>value</parameter> are concatenated with an '=' to + form a name=value and passed to <function>pam_putenv()</function>. + If, however, the PAM variable is already set, the replacement will + only be applied if the last argument, <parameter>readonly</parameter>, + is zero. + </para> + </refsect1> + + <refsect1 id='pam_misc_setenv-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam_putenv</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum> + </citerefentry> + </para> + </refsect1> + + <refsect1 id='pam_misc_setenv-standards'> + <title>STANDARDS</title> + <para> + The <function>pam_misc_setenv</function> function is part of the + <command>libpam_misc</command> Library and not defined in any + standard. + </para> + </refsect1> + +</refentry> diff --git a/doc/man/pam_open_session.3 b/doc/man/pam_open_session.3 new file mode 100644 index 0000000..ec4d729 --- /dev/null +++ b/doc/man/pam_open_session.3 @@ -0,0 +1,81 @@ +'\" t +.\" Title: pam_open_session +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_OPEN_SESSION" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_open_session \- start PAM session management +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_appl\&.h> +.fi +.ft +.HP \w'int\ pam_open_session('u +.BI "int pam_open_session(pam_handle_t\ *" "pamh" ", int\ " "flags" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_open_session\fR +function sets up a user session for a previously successful authenticated user\&. The session should later be terminated with a call to +\fBpam_close_session\fR(3)\&. +.PP +It should be noted that the effective uid, +\fBgeteuid\fR(2)\&. of the application should be of sufficient privilege to perform such tasks as creating or mounting the user\*(Aqs home directory for example\&. +.PP +The flags argument is the binary or of zero or more of the following values: +.PP +PAM_SILENT +.RS 4 +Do not emit any messages\&. +.RE +.SH "RETURN VALUES" +.PP +PAM_ABORT +.RS 4 +General failure\&. +.RE +.PP +PAM_BUF_ERR +.RS 4 +Memory buffer error\&. +.RE +.PP +PAM_SESSION_ERR +.RS 4 +Session failure\&. +.RE +.PP +PAM_SUCCESS +.RS 4 +Session was successful created\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam_close_session\fR(3), +\fBpam_strerror\fR(3) diff --git a/doc/man/pam_open_session.3.xml b/doc/man/pam_open_session.3.xml new file mode 100644 index 0000000..eba0bc0 --- /dev/null +++ b/doc/man/pam_open_session.3.xml @@ -0,0 +1,115 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> + +<refentry id='pam_send'> + + <refmeta> + <refentrytitle>pam_open_session</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_open_session-name"> + <refname>pam_open_session</refname> + <refpurpose>start PAM session management</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv> + <funcsynopsis id="pam_open_session-synopsis"> + <funcsynopsisinfo>#include <security/pam_appl.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_open_session</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>int <parameter>flags</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + + <refsect1 id="pam_open_session-description"> + <title>DESCRIPTION</title> + <para> + The <function>pam_open_session</function> function sets up a + user session for a previously successful authenticated user. + The session should later be terminated with a call to + <citerefentry> + <refentrytitle>pam_close_session</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>. + </para> + <para> + It should be noted that the effective uid, + <citerefentry> + <refentrytitle>geteuid</refentrytitle><manvolnum>2</manvolnum> + </citerefentry>. of the application should be of sufficient + privilege to perform such tasks as creating or mounting the + user's home directory for example. + </para> + <para> + The flags argument is the binary or of zero or more of the + following values: + </para> + <variablelist> + <varlistentry> + <term>PAM_SILENT</term> + <listitem> + <para> + Do not emit any messages. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id="pam_open_session-return_values"> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_ABORT</term> + <listitem> + <para> + General failure. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_BUF_ERR</term> + <listitem> + <para> + Memory buffer error. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SESSION_ERR</term> + <listitem> + <para> + Session failure. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + Session was successful created. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id="pam_open_session-see_also"> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam_close_session</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + </para> + </refsect1> +</refentry> diff --git a/doc/man/pam_prompt.3 b/doc/man/pam_prompt.3 new file mode 100644 index 0000000..adc4845 --- /dev/null +++ b/doc/man/pam_prompt.3 @@ -0,0 +1,81 @@ +'\" t +.\" Title: pam_prompt +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_PROMPT" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_prompt, pam_vprompt \- interface to conversation function +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_ext\&.h> +.fi +.ft +.HP \w'int\ pam_prompt('u +.BI "int pam_prompt(pam_handle_t\ *" "pamh" ", int\ " "style" ", char\ **" "response" ", const\ char\ *" "fmt" ", " "\&.\&.\&." ");" +.HP \w'int\ pam_vprompt('u +.BI "int pam_vprompt(pam_handle_t\ *" "pamh" ", int\ " "style" ", char\ **" "response" ", const\ char\ *" "fmt" ", va_list\ " "args" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_prompt\fR +function constructs a message from the specified format string and arguments and passes it to the conversation function as set by the service\&. Upon successful return, +\fIresponse\fR +is set to point to a string returned from the conversation function\&. This string is allocated on heap and should be freed\&. +.SH "RETURN VALUES" +.PP +PAM_BUF_ERR +.RS 4 +Memory buffer error\&. +.RE +.PP +PAM_CONV_ERR +.RS 4 +Conversation failure\&. +.RE +.PP +PAM_SUCCESS +.RS 4 +Conversation succeded, response is set\&. +.RE +.PP +PAM_SYSTEM_ERR +.RS 4 +System error\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam\fR(8), +\fBpam_conv\fR(3) +.SH "STANDARDS" +.PP +The +\fBpam_prompt\fR +and +\fBpam_vprompt\fR +functions are Linux\-PAM extensions\&. diff --git a/doc/man/pam_prompt.3.xml b/doc/man/pam_prompt.3.xml new file mode 100644 index 0000000..8b502a9 --- /dev/null +++ b/doc/man/pam_prompt.3.xml @@ -0,0 +1,114 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> + +<refentry id="pam_prompt"> + + <refmeta> + <refentrytitle>pam_prompt</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_prompt-name"> + <refname>pam_prompt</refname> + <refname>pam_vprompt</refname> + <refpurpose>interface to conversation function</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv id="pam_prompt-synopsis"> + <funcsynopsis> + <funcsynopsisinfo>#include <security/pam_ext.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_prompt</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>int <parameter>style</parameter></paramdef> + <paramdef>char **<parameter>response</parameter></paramdef> + <paramdef>const char *<parameter>fmt</parameter></paramdef> + <paramdef><parameter>...</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef>int <function>pam_vprompt</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>int <parameter>style</parameter></paramdef> + <paramdef>char **<parameter>response</parameter></paramdef> + <paramdef>const char *<parameter>fmt</parameter></paramdef> + <paramdef>va_list <parameter>args</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1 id='pam_prompt-description'> + <title>DESCRIPTION</title> + <para> + The <function>pam_prompt</function> function constructs a message + from the specified format string and arguments and passes it to the + conversation function as set by the service. Upon successful return, + <emphasis>response</emphasis> is set to point to a string + returned from the conversation function. This string is allocated + on heap and should be freed. + </para> + </refsect1> + + <refsect1 id="pam_prompt-return_values"> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_BUF_ERR</term> + <listitem> + <para> + Memory buffer error. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_CONV_ERR</term> + <listitem> + <para> + Conversation failure. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + Conversation succeded, response is set. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SYSTEM_ERR</term> + <listitem> + <para> + System error. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + + <refsect1 id='pam_prompt-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_conv</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + </para> + </refsect1> + + <refsect1 id='pam_prompt-standards'> + <title>STANDARDS</title> + <para> + The <function>pam_prompt</function> and <function>pam_vprompt</function> + functions are Linux-PAM extensions. + </para> + </refsect1> + +</refentry> diff --git a/doc/man/pam_putenv.3 b/doc/man/pam_putenv.3 new file mode 100644 index 0000000..115d8d2 --- /dev/null +++ b/doc/man/pam_putenv.3 @@ -0,0 +1,111 @@ +'\" t +.\" Title: pam_putenv +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_PUTENV" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_putenv \- set or change PAM environment variable +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_appl\&.h> +.fi +.ft +.HP \w'int\ pam_putenv('u +.BI "int pam_putenv(pam_handle_t\ *" "pamh" ", const\ char\ *" "name_value" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_putenv\fR +function is used to add or change the value of PAM environment variables as associated with the +\fIpamh\fR +handle\&. +.PP +The +\fIpamh\fR +argument is an authentication handle obtained by a prior call to pam_start()\&. The +\fIname_value\fR +argument is a single NUL terminated string of one of the following forms: +.PP +NAME=value of variable +.RS 4 +In this case the environment variable of the given NAME is set to the indicated value: +\fIvalue of variable\fR\&. If this variable is already known, it is overwritten\&. Otherwise it is added to the PAM environment\&. +.RE +.PP +NAME= +.RS 4 +This function sets the variable to an empty value\&. It is listed separately to indicate that this is the correct way to achieve such a setting\&. +.RE +.PP +NAME +.RS 4 +Without an \*(Aq=\*(Aq the +\fBpam_putenv\fR() function will delete the corresponding variable from the PAM environment\&. +.RE +.PP +\fBpam_putenv\fR() operates on a copy of +\fIname_value\fR, which means in contrast to +\fBputenv\fR(3), the application is responsible to free the data\&. +.SH "RETURN VALUES" +.PP +PAM_PERM_DENIED +.RS 4 +Argument +\fIname_value\fR +given is a NULL pointer\&. +.RE +.PP +PAM_BAD_ITEM +.RS 4 +Variable requested (for deletion) is not currently set\&. +.RE +.PP +PAM_ABORT +.RS 4 +The +\fIpamh\fR +handle is corrupt\&. +.RE +.PP +PAM_BUF_ERR +.RS 4 +Memory buffer error\&. +.RE +.PP +PAM_SUCCESS +.RS 4 +The environment variable was successfully updated\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam_start\fR(3), +\fBpam_getenv\fR(3), +\fBpam_getenvlist\fR(3), +\fBpam_strerror\fR(3), +\fBpam\fR(8) diff --git a/doc/man/pam_putenv.3.xml b/doc/man/pam_putenv.3.xml new file mode 100644 index 0000000..619b218 --- /dev/null +++ b/doc/man/pam_putenv.3.xml @@ -0,0 +1,152 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> +<refentry id='pam_putenv'> + <refmeta> + <refentrytitle>pam_putenv</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_putenv-name"> + <refname>pam_putenv</refname> + <refpurpose>set or change PAM environment variable</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv> + <funcsynopsis id='pam_putenv-synopsis'> + <funcsynopsisinfo>#include <security/pam_appl.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_putenv</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>const char *<parameter>name_value</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + + <refsect1 id='pam_putenv-description'> + <title>DESCRIPTION</title> + <para> + The <function>pam_putenv</function> function is used to + add or change the value of PAM environment variables as + associated with the <emphasis>pamh</emphasis> handle. + </para> + <para> + The <emphasis>pamh</emphasis> argument is an authentication + handle obtained by a prior call to pam_start(). + The <emphasis>name_value</emphasis> argument is a single NUL + terminated string of one of the following forms: + </para> + <variablelist> + <varlistentry> + <term>NAME=value of variable</term> + <listitem> + <para> + In this case the environment variable of the given NAME + is set to the indicated value: + <emphasis>value of variable</emphasis>. If this variable + is already known, it is overwritten. Otherwise it is added + to the PAM environment. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>NAME=</term> + <listitem> + <para> + This function sets the variable to an empty value. It is + listed separately to indicate that this is the correct way + to achieve such a setting. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>NAME</term> + <listitem> + <para> + Without an '=' the <function>pam_putenv</function>() function + will delete the + corresponding variable from the PAM environment. + </para> + </listitem> + </varlistentry> + </variablelist> + <para> + <function>pam_putenv</function>() operates on a copy of + <emphasis>name_value</emphasis>, which means in contrast to + <citerefentry> + <refentrytitle>putenv</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, the application is responsible to free the data. + </para> + </refsect1> + + <refsect1 id="pam_putenv-return_values"> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_PERM_DENIED</term> + <listitem> + <para> + Argument <emphasis>name_value</emphasis> given is a NULL pointer. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_BAD_ITEM</term> + <listitem> + <para> + Variable requested (for deletion) is not currently set. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_ABORT</term> + <listitem> + <para> + The <emphasis>pamh</emphasis> handle is corrupt. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_BUF_ERR</term> + <listitem> + <para> + Memory buffer error. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + The environment variable was successfully updated. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id='pam_putenv-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam_start</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_getenv</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_getenvlist</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum> + </citerefentry> + </para> + </refsect1> +</refentry> diff --git a/doc/man/pam_set_data.3 b/doc/man/pam_set_data.3 new file mode 100644 index 0000000..8c4a498 --- /dev/null +++ b/doc/man/pam_set_data.3 @@ -0,0 +1,119 @@ +'\" t +.\" Title: pam_set_data +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_SET_DATA" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_set_data \- set module internal data +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_modules\&.h> +.fi +.ft +.HP \w'int\ pam_set_data('u +.BI "int pam_set_data(pam_handle_t\ *" "pamh" ", const\ char\ *" "module_data_name" ", void\ *" "data" ", void\ " "(*cleanup)(pam_handle_t\ *pamh,\ void\ *data,\ int\ error_status)" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_set_data\fR +function associates a pointer to an object with the (hopefully) unique string +\fImodule_data_name\fR +in the PAM context specified by the +\fIpamh\fR +argument\&. +.PP +PAM modules may be dynamically loadable objects\&. In general such files should not contain +\fIstatic\fR +variables\&. This function and its counterpart +\fBpam_get_data\fR(3), provide a mechanism for a module to associate some data with the handle +\fIpamh\fR\&. Typically a module will call the +\fBpam_set_data\fR +function to register some data under a (hopefully) unique +\fImodule_data_name\fR\&. The data is available for use by other modules too but +\fInot\fR +by an application\&. Since this functions stores only a pointer to the +\fIdata\fR, the module should not modify or free the content of it\&. +.PP +The function +\fBcleanup()\fR +is associated with the +\fIdata\fR +and, if non\-NULL, it is called when this data is over\-written or following a call to +\fBpam_end\fR(3)\&. +.PP +The +\fIerror_status\fR +argument is used to indicate to the module the sort of action it is to take in cleaning this data item\&. As an example, Kerberos creates a ticket file during the authentication phase, this file might be associated with a data item\&. When +\fBpam_end\fR(3) +is called by the module, the +\fIerror_status\fR +carries the return value of the +\fBpam_authenticate\fR(3) +or other +\fIlibpam\fR +function as appropriate\&. Based on this value the Kerberos module may choose to delete the ticket file (\fIauthentication failure\fR) or leave it in place\&. +.PP +The +\fIerror_status\fR +may have been logically OR\*(Aqd with either of the following two values: +.PP +PAM_DATA_REPLACE +.RS 4 +When a data item is being replaced (through a second call to +\fBpam_set_data\fR) this mask is used\&. Otherwise, the call is assumed to be from +\fBpam_end\fR(3)\&. +.RE +.PP +PAM_DATA_SILENT +.RS 4 +Which indicates that the process would prefer to perform the +\fBcleanup()\fR +quietly\&. That is, discourages logging/messages to the user\&. +.RE +.SH "RETURN VALUES" +.PP +PAM_BUF_ERR +.RS 4 +Memory buffer error\&. +.RE +.PP +PAM_SUCCESS +.RS 4 +Data was successful stored\&. +.RE +.PP +PAM_SYSTEM_ERR +.RS 4 +A NULL pointer was submitted as PAM handle or the function was called by an application\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam_end\fR(3), +\fBpam_get_data\fR(3), +\fBpam_strerror\fR(3) diff --git a/doc/man/pam_set_data.3.xml b/doc/man/pam_set_data.3.xml new file mode 100644 index 0000000..c20068c --- /dev/null +++ b/doc/man/pam_set_data.3.xml @@ -0,0 +1,172 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> + +<refentry id='pam_set_data'> + + <refmeta> + <refentrytitle>pam_set_data</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id='pam_set_data-name'> + <refname>pam_set_data</refname> + <refpurpose> + set module internal data + </refpurpose> + </refnamediv> + + +<!-- body begins here --> + + <refsynopsisdiv> + + <funcsynopsis id="pam_set_data-synopsis"> + <funcsynopsisinfo>#include <security/pam_modules.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_set_data</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>const char *<parameter>module_data_name</parameter></paramdef> + <paramdef>void *<parameter>data</parameter></paramdef> + <paramdef>void <parameter>(*cleanup)(pam_handle_t *pamh, void *data, int error_status)</parameter></paramdef> + </funcprototype> + </funcsynopsis> + + </refsynopsisdiv> + + + <refsect1 id="pam_set_data-description"> + <title>DESCRIPTION</title> + <para> + The <function>pam_set_data</function> function associates a pointer + to an object with the (hopefully) unique string + <emphasis>module_data_name</emphasis> in the PAM context specified + by the <emphasis>pamh</emphasis> argument. + </para> + + <para> + PAM modules may be dynamically loadable objects. In general such files + should not contain <emphasis>static</emphasis> variables. This function + and its counterpart + <citerefentry> + <refentrytitle>pam_get_data</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + provide a mechanism for a module to associate some data with + the handle <emphasis>pamh</emphasis>. Typically a module will call the + <function>pam_set_data</function> function to register some data + under a (hopefully) unique <emphasis>module_data_name</emphasis>. + The data is available for use by other modules too but + <emphasis>not</emphasis> by an application. Since this functions + stores only a pointer to the <emphasis>data</emphasis>, the module + should not modify or free the content of it. + </para> + + <para> + The function <function>cleanup()</function> is associated with the + <emphasis>data</emphasis> and, if non-NULL, it is called when this + data is over-written or following a call to + <citerefentry> + <refentrytitle>pam_end</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>. + </para> + + <para> + The <emphasis>error_status</emphasis> argument is used to indicate + to the module the sort of action it is to take in cleaning this data + item. As an example, Kerberos creates a ticket file during the + authentication phase, this file might be associated with a data item. + When + <citerefentry> + <refentrytitle>pam_end</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + is called by the module, the <emphasis>error_status</emphasis> + carries the return value of the + <citerefentry> + <refentrytitle>pam_authenticate</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + or other <emphasis>libpam</emphasis> function as appropriate. Based + on this value the Kerberos module may choose to delete the ticket file + (<emphasis>authentication failure</emphasis>) or leave it in place. + </para> + + <para> + The <emphasis>error_status</emphasis> may have been logically + OR'd with either of the following two values: + </para> + + <variablelist> + <varlistentry> + <term>PAM_DATA_REPLACE</term> + <listitem> + <para> + When a data item is being replaced (through a second call to + <function>pam_set_data</function>) this mask is used. + Otherwise, the call is assumed to be from + <citerefentry> + <refentrytitle>pam_end</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>. + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term>PAM_DATA_SILENT</term> + <listitem> + <para> + Which indicates that the process would prefer to perform the + <function>cleanup()</function> quietly. That is, discourages + logging/messages to the user. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id="pam_set_data-return_values"> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_BUF_ERR</term> + <listitem> + <para> + Memory buffer error. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + Data was successful stored. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SYSTEM_ERR</term> + <listitem> + <para> + A NULL pointer was submitted as PAM handle or the + function was called by an application. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id="pam_set_data-see_also"> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam_end</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_get_data</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/doc/man/pam_set_item.3 b/doc/man/pam_set_item.3 new file mode 100644 index 0000000..96a760c --- /dev/null +++ b/doc/man/pam_set_item.3 @@ -0,0 +1,193 @@ +'\" t +.\" Title: pam_set_item +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_SET_ITEM" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_set_item \- set and update PAM informations +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_modules\&.h> +.fi +.ft +.HP \w'int\ pam_set_item('u +.BI "int pam_set_item(pam_handle_t\ *" "pamh" ", int\ " "item_type" ", const\ void\ *" "item" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_set_item\fR +function allows applications and PAM service modules to access and to update PAM informations of +\fIitem_type\fR\&. For this a copy of the object pointed to by the +\fIitem\fR +argument is created\&. The following +\fIitem_type\fRs are supported: +.PP +PAM_SERVICE +.RS 4 +The service name (which identifies that PAM stack that the PAM functions will use to authenticate the program)\&. +.RE +.PP +PAM_USER +.RS 4 +The username of the entity under whose identity service will be given\&. That is, following authentication, +\fIPAM_USER\fR +identifies the local entity that gets to use the service\&. Note, this value can be mapped from something (eg\&., "anonymous") to something else (eg\&. "guest119") by any module in the PAM stack\&. As such an application should consult the value of +\fIPAM_USER\fR +after each call to a PAM function\&. +.RE +.PP +PAM_USER_PROMPT +.RS 4 +The string used when prompting for a user\*(Aqs name\&. The default value for this string is a localized version of "login: "\&. +.RE +.PP +PAM_TTY +.RS 4 +The terminal name: prefixed by +/dev/ +if it is a device file; for graphical, X\-based, applications the value for this item should be the +\fI$DISPLAY\fR +variable\&. +.RE +.PP +PAM_RUSER +.RS 4 +The requesting user name: local name for a locally requesting user or a remote user name for a remote requesting user\&. +.sp +Generally an application or module will attempt to supply the value that is most strongly authenticated (a local account before a remote one\&. The level of trust in this value is embodied in the actual authentication stack associated with the application, so it is ultimately at the discretion of the system administrator\&. +.sp +\fIPAM_RUSER@PAM_RHOST\fR +should always identify the requesting user\&. In some cases, +\fIPAM_RUSER\fR +may be NULL\&. In such situations, it is unclear who the requesting entity is\&. +.RE +.PP +PAM_RHOST +.RS 4 +The requesting hostname (the hostname of the machine from which the +\fIPAM_RUSER\fR +entity is requesting service)\&. That is +\fIPAM_RUSER@PAM_RHOST\fR +does identify the requesting user\&. In some applications, +\fIPAM_RHOST\fR +may be NULL\&. In such situations, it is unclear where the authentication request is originating from\&. +.RE +.PP +PAM_AUTHTOK +.RS 4 +The authentication token (often a password)\&. This token should be ignored by all module functions besides +\fBpam_sm_authenticate\fR(3) +and +\fBpam_sm_chauthtok\fR(3)\&. In the former function it is used to pass the most recent authentication token from one stacked module to another\&. In the latter function the token is used for another purpose\&. It contains the currently active authentication token\&. +.RE +.PP +PAM_OLDAUTHTOK +.RS 4 +The old authentication token\&. This token should be ignored by all module functions except +\fBpam_sm_chauthtok\fR(3)\&. +.RE +.PP +PAM_CONV +.RS 4 +The pam_conv structure\&. See +\fBpam_conv\fR(3)\&. +.RE +.PP +The following additional items are specific to Linux\-PAM and should not be used in portable applications: +.PP +PAM_FAIL_DELAY +.RS 4 +A function pointer to redirect centrally managed failure delays\&. See +\fBpam_fail_delay\fR(3)\&. +.RE +.PP +PAM_XDISPLAY +.RS 4 +The name of the X display\&. For graphical, X\-based applications the value for this item should be the +\fI$DISPLAY\fR +variable\&. This value may be used independently of +\fIPAM_TTY\fR +for passing the name of the display\&. +.RE +.PP +PAM_XAUTHDATA +.RS 4 +A pointer to a structure containing the X authentication data required to make a connection to the display specified by +\fIPAM_XDISPLAY\fR, if such information is necessary\&. See +\fBpam_xauth_data\fR(3)\&. +.RE +.PP +PAM_AUTHTOK_TYPE +.RS 4 +The default action is for the module to use the following prompts when requesting passwords: "New UNIX password: " and "Retype UNIX password: "\&. The example word +\fIUNIX\fR +can be replaced with this item, by default it is empty\&. This item is used by +\fBpam_get_authtok\fR(3)\&. +.RE +.PP +For all +\fIitem_type\fRs, other than PAM_CONV and PAM_FAIL_DELAY, +\fIitem\fR +is a pointer to a <NUL> terminated character string\&. In the case of PAM_CONV, +\fIitem\fR +points to an initialized +\fIpam_conv\fR +structure\&. In the case of PAM_FAIL_DELAY, +\fIitem\fR +is a function pointer: +\fBvoid (*delay_fn)(int retval, unsigned usec_delay, void *appdata_ptr)\fR +.PP +Both, PAM_AUTHTOK and PAM_OLDAUTHTOK, will be reseted before returning to the application\&. Which means an application is not able to access the authentication tokens\&. +.SH "RETURN VALUES" +.PP +PAM_BAD_ITEM +.RS 4 +The application attempted to set an undefined or inaccessible item\&. +.RE +.PP +PAM_BUF_ERR +.RS 4 +Memory buffer error\&. +.RE +.PP +PAM_SUCCESS +.RS 4 +Data was successful updated\&. +.RE +.PP +PAM_SYSTEM_ERR +.RS 4 +The +\fIpam_handle_t\fR +passed as first argument was invalid\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam_get_item\fR(3), +\fBpam_strerror\fR(3) diff --git a/doc/man/pam_set_item.3.xml b/doc/man/pam_set_item.3.xml new file mode 100644 index 0000000..3975831 --- /dev/null +++ b/doc/man/pam_set_item.3.xml @@ -0,0 +1,136 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" +[ +<!-- +<!ENTITY accessconf SYSTEM "pam_item_types_std.inc.xml"> +<!ENTITY accessconf SYSTEM "pam_item_types_ext.inc.xml"> +--> +]> + +<refentry id='pam_set_item'> + + <refmeta> + <refentrytitle>pam_set_item</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id='pam_set_item-name'> + <refname>pam_set_item</refname> + <refpurpose> + set and update PAM informations + </refpurpose> + </refnamediv> + + +<!-- body begins here --> + + <refsynopsisdiv> + + <funcsynopsis id="pam_set_item-synopsis"> + <funcsynopsisinfo>#include <security/pam_modules.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_set_item</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>int <parameter>item_type</parameter></paramdef> + <paramdef>const void *<parameter>item</parameter></paramdef> + </funcprototype> + </funcsynopsis> + + </refsynopsisdiv> + + + <refsect1 id="pam_set_item-description"> + <title>DESCRIPTION</title> + <para> + The <function>pam_set_item</function> function allows applications + and PAM service modules to access and to update PAM informations + of <emphasis>item_type</emphasis>. For this a copy + of the object pointed to by the <emphasis>item</emphasis> argument + is created. The following <emphasis>item_type</emphasis>s are + supported: + </para> + + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_item_types_std.inc.xml"/> + + <para> + The following additional items are specific to Linux-PAM and should not be used in + portable applications: + </para> + + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_item_types_ext.inc.xml"/> + + <para> + For all <emphasis>item_type</emphasis>s, other than PAM_CONV and + PAM_FAIL_DELAY, <emphasis>item</emphasis> is a pointer to a <NUL> + terminated character string. In the case of PAM_CONV, + <emphasis>item</emphasis> points to an initialized + <emphasis>pam_conv</emphasis> structure. In the case of + PAM_FAIL_DELAY, <emphasis>item</emphasis> is a function pointer: + <function>void (*delay_fn)(int retval, unsigned usec_delay, void *appdata_ptr)</function> + </para> + + <para> + Both, PAM_AUTHTOK and PAM_OLDAUTHTOK, will be reseted before + returning to the application. Which means an application is not + able to access the authentication tokens. + </para> + + </refsect1> + + <refsect1 id="pam_set_item-return_values"> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_BAD_ITEM</term> + <listitem> + <para> + The application attempted to set an undefined or inaccessible + item. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_BUF_ERR</term> + <listitem> + <para> + Memory buffer error. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + Data was successful updated. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SYSTEM_ERR</term> + <listitem> + <para> + The <emphasis>pam_handle_t</emphasis> passed as first + argument was invalid. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id="pam_set_item-see_also"> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam_get_item</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/doc/man/pam_setcred.3 b/doc/man/pam_setcred.3 new file mode 100644 index 0000000..fcf0830 --- /dev/null +++ b/doc/man/pam_setcred.3 @@ -0,0 +1,122 @@ +'\" t +.\" Title: pam_setcred +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_SETCRED" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_setcred \- establish / delete user credentials +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_appl\&.h> +.fi +.ft +.HP \w'int\ pam_setcred('u +.BI "int pam_setcred(pam_handle_t\ *" "pamh" ", int\ " "flags" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_setcred\fR +function is used to establish, maintain and delete the credentials of a user\&. It should be called to set the credentials after a user has been authenticated and before a session is opened for the user (with +\fBpam_open_session\fR(3))\&. The credentials should be deleted after the session has been closed (with +\fBpam_close_session\fR(3))\&. +.PP +A credential is something that the user possesses\&. It is some property, such as a +\fIKerberos\fR +ticket, or a supplementary group membership that make up the uniqueness of a given user\&. On a Linux system the user\*(Aqs +\fIUID\fR +and +\fIGID\fR\*(Aqs are credentials too\&. However, it has been decided that these properties (along with the default supplementary groups of which the user is a member) are credentials that should be set directly by the application and not by PAM\&. Such credentials should be established, by the application, prior to a call to this function\&. For example, +\fBinitgroups\fR(2) +(or equivalent) should have been performed\&. +.PP +Valid +\fIflags\fR, any one of which, may be logically OR\*(Aqd with +\fBPAM_SILENT\fR, are: +.PP +PAM_ESTABLISH_CRED +.RS 4 +Initialize the credentials for the user\&. +.RE +.PP +PAM_DELETE_CRED +.RS 4 +Delete the user\*(Aqs credentials\&. +.RE +.PP +PAM_REINITIALIZE_CRED +.RS 4 +Fully reinitialize the user\*(Aqs credentials\&. +.RE +.PP +PAM_REFRESH_CRED +.RS 4 +Extend the lifetime of the existing credentials\&. +.RE +.SH "RETURN VALUES" +.PP +PAM_BUF_ERR +.RS 4 +Memory buffer error\&. +.RE +.PP +PAM_CRED_ERR +.RS 4 +Failed to set user credentials\&. +.RE +.PP +PAM_CRED_EXPIRED +.RS 4 +User credentials are expired\&. +.RE +.PP +PAM_CRED_UNAVAIL +.RS 4 +Failed to retrieve user credentials\&. +.RE +.PP +PAM_SUCCESS +.RS 4 +Data was successful stored\&. +.RE +.PP +PAM_SYSTEM_ERR +.RS 4 +A NULL pointer was submitted as PAM handle, the function was called by a module or another system error occured\&. +.RE +.PP +PAM_USER_UNKNOWN +.RS 4 +User is not known to an authentication module\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam_authenticate\fR(3), +\fBpam_open_session\fR(3), +\fBpam_close_session\fR(3), +\fBpam_strerror\fR(3) diff --git a/doc/man/pam_setcred.3.xml b/doc/man/pam_setcred.3.xml new file mode 100644 index 0000000..77e9382 --- /dev/null +++ b/doc/man/pam_setcred.3.xml @@ -0,0 +1,180 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> + +<refentry id="pam_setcred"> + + <refmeta> + <refentrytitle>pam_setcred</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_setcred-name"> + <refname>pam_setcred</refname> + <refpurpose> + establish / delete user credentials + </refpurpose> + </refnamediv> + + <!-- body begins here --> + <refsynopsisdiv> + <funcsynopsis id='pam_setcred-synopsis'> + <funcsynopsisinfo>#include <security/pam_appl.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_setcred</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>int <parameter>flags</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + + <refsect1 id='pam_setcred-description'> + <title>DESCRIPTION</title> + <para> + The <function>pam_setcred</function> function is used to establish, + maintain and delete the credentials of a user. It should be called + to set the credentials after a user has been authenticated and before + a session is opened for the user (with + <citerefentry> + <refentrytitle>pam_open_session</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>). The credentials should be deleted after the session + has been closed (with + <citerefentry> + <refentrytitle>pam_close_session</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>). + </para> + + <para> + A credential is something that the user possesses. It is some + property, such as a <emphasis>Kerberos</emphasis> ticket, or a + supplementary group membership that make up the uniqueness of a + given user. On a Linux system the user's <emphasis>UID</emphasis> + and <emphasis>GID</emphasis>'s are credentials too. However, it + has been decided that these properties (along with the default + supplementary groups of which the user is a member) are credentials + that should be set directly by the application and not by PAM. + Such credentials should be established, by the application, prior + to a call to this function. For example, + <citerefentry> + <refentrytitle>initgroups</refentrytitle><manvolnum>2</manvolnum> + </citerefentry> (or equivalent) should have been performed. + </para> + + <para> + Valid <emphasis>flags</emphasis>, any one of which, may be + logically OR'd with <option>PAM_SILENT</option>, are: + </para> + + <variablelist> + <varlistentry> + <term>PAM_ESTABLISH_CRED</term> + <listitem> + <para>Initialize the credentials for the user.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_DELETE_CRED</term> + <listitem> + <para>Delete the user's credentials.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_REINITIALIZE_CRED</term> + <listitem> + <para>Fully reinitialize the user's credentials.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_REFRESH_CRED</term> + <listitem> + <para>Extend the lifetime of the existing credentials.</para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id='pam_setcred-return_values'> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_BUF_ERR</term> + <listitem> + <para> + Memory buffer error. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_CRED_ERR</term> + <listitem> + <para> + Failed to set user credentials. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_CRED_EXPIRED</term> + <listitem> + <para> + User credentials are expired. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_CRED_UNAVAIL</term> + <listitem> + <para> + Failed to retrieve user credentials. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + Data was successful stored. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SYSTEM_ERR</term> + <listitem> + <para> + A NULL pointer was submitted as PAM handle, the + function was called by a module or another system + error occured. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_USER_UNKNOWN</term> + <listitem> + <para> + User is not known to an authentication module. + </para> + </listitem> + </varlistentry> + + </variablelist> + </refsect1> + + <refsect1 id="pam_set_data-see_also"> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam_authenticate</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_open_session</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_close_session</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + </para> + </refsect1> +</refentry> diff --git a/doc/man/pam_sm_acct_mgmt.3 b/doc/man/pam_sm_acct_mgmt.3 new file mode 100644 index 0000000..eb56670 --- /dev/null +++ b/doc/man/pam_sm_acct_mgmt.3 @@ -0,0 +1,111 @@ +'\" t +.\" Title: pam_sm_acct_mgmt +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_SM_ACCT_MGMT" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_sm_acct_mgmt \- PAM service function for account management +.SH "SYNOPSIS" +.sp +.ft B +.nf +#define PAM_SM_ACCOUNT +.fi +.ft +.sp +.ft B +.nf +#include <security/pam_modules\&.h> +.fi +.ft +.HP \w'int\ pam_sm_acct_mgmt('u +.BI "int pam_sm_acct_mgmt(pam_handle_t\ *" "pamh" ", int\ " "flags" ", int\ " "argc" ", const\ char\ **" "argv" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_sm_acct_mgmt\fR +function is the service module\*(Aqs implementation of the +\fBpam_acct_mgmt\fR(3) +interface\&. +.PP +This function performs the task of establishing whether the user is permitted to gain access at this time\&. It should be understood that the user has previously been validated by an authentication module\&. This function checks for other things\&. Such things might be: the time of day or the date, the terminal line, remote hostname, etc\&. This function may also determine things like the expiration on passwords, and respond that the user change it before continuing\&. +.PP +Valid flags, which may be logically OR\*(Aqd with +\fIPAM_SILENT\fR, are: +.PP +PAM_SILENT +.RS 4 +Do not emit any messages\&. +.RE +.PP +PAM_DISALLOW_NULL_AUTHTOK +.RS 4 +Return +\fBPAM_AUTH_ERR\fR +if the database of authentication tokens for this authentication mechanism has a +\fINULL\fR +entry for the user\&. +.RE +.SH "RETURN VALUES" +.PP +PAM_ACCT_EXPIRED +.RS 4 +User account has expired\&. +.RE +.PP +PAM_AUTH_ERR +.RS 4 +Authentication failure\&. +.RE +.PP +PAM_NEW_AUTHTOK_REQD +.RS 4 +The user\*(Aqs authentication token has expired\&. Before calling this function again the application will arrange for a new one to be given\&. This will likely result in a call to +\fBpam_sm_chauthtok()\fR\&. +.RE +.PP +PAM_PERM_DENIED +.RS 4 +Permission denied\&. +.RE +.PP +PAM_SUCCESS +.RS 4 +The authentication token was successfully updated\&. +.RE +.PP +PAM_USER_UNKNOWN +.RS 4 +User unknown to password service\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam\fR(3), +\fBpam_acct_mgmt\fR(3), +\fBpam_sm_chauthtok\fR(3), +\fBpam_strerror\fR(3), +\fBPAM\fR(8) diff --git a/doc/man/pam_sm_acct_mgmt.3.xml b/doc/man/pam_sm_acct_mgmt.3.xml new file mode 100644 index 0000000..ff99867 --- /dev/null +++ b/doc/man/pam_sm_acct_mgmt.3.xml @@ -0,0 +1,155 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> +<refentry id='pam_sm_acct_mgmt'> + <refmeta> + <refentrytitle>pam_sm_acct_mgmt</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_sm_acct_mgmt-name"> + <refname>pam_sm_acct_mgmt</refname> + <refpurpose>PAM service function for account management</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv> + <funcsynopsis id='pam_sm_acct_mgmt-synopsis'> + <funcsynopsisinfo>#define PAM_SM_ACCOUNT</funcsynopsisinfo> + <funcsynopsisinfo>#include <security/pam_modules.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_sm_acct_mgmt</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>int <parameter>flags</parameter></paramdef> + <paramdef>int <parameter>argc</parameter></paramdef> + <paramdef>const char **<parameter>argv</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + + <refsect1 id='pam_sm_acct_mgmt-description'> + <title>DESCRIPTION</title> + <para> + The <function>pam_sm_acct_mgmt</function> function is the service + module's implementation of the + <citerefentry> + <refentrytitle>pam_acct_mgmt</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> interface. + </para> + <para> + This function performs the task of establishing whether the user is + permitted to gain access at this time. It should be understood that + the user has previously been validated by an authentication + module. This function checks for other things. Such things might be: + the time of day or the date, the terminal line, remote hostname, etc. + This function may also determine things like the expiration on + passwords, and respond that the user change it before continuing. + </para> + <para> + Valid flags, which may be logically OR'd with + <emphasis>PAM_SILENT</emphasis>, are: + </para> + <variablelist> + <varlistentry> + <term>PAM_SILENT</term> + <listitem> + <para> + Do not emit any messages. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_DISALLOW_NULL_AUTHTOK</term> + <listitem> + <para> + Return <emphasis remap='B'>PAM_AUTH_ERR</emphasis> if the + database of authentication tokens for this authentication + mechanism has a <emphasis>NULL</emphasis> entry for the user. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id="pam_sm_acct_mgmt-return_values"> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_ACCT_EXPIRED</term> + <listitem> + <para> + User account has expired. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_AUTH_ERR</term> + <listitem> + <para> + Authentication failure. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_NEW_AUTHTOK_REQD</term> + <listitem> + <para> + The user's authentication token has expired. Before calling + this function again the application will arrange for a new + one to be given. This will likely result in a call to + <function>pam_sm_chauthtok()</function>. + + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_PERM_DENIED</term> + <listitem> + <para> + Permission denied. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + The authentication token was successfully updated. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_USER_UNKNOWN</term> + <listitem> + <para> + User unknown to password service. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id='pam_sm_acct_mgmt-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_acct_mgmt</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_sm_chauthtok</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>PAM</refentrytitle><manvolnum>8</manvolnum> + </citerefentry> + </para> + </refsect1> +</refentry> diff --git a/doc/man/pam_sm_authenticate.3 b/doc/man/pam_sm_authenticate.3 new file mode 100644 index 0000000..6ea6390 --- /dev/null +++ b/doc/man/pam_sm_authenticate.3 @@ -0,0 +1,112 @@ +'\" t +.\" Title: pam_sm_authenticate +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_SM_AUTHENTICATE" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_sm_authenticate \- PAM service function for user authentication +.SH "SYNOPSIS" +.sp +.ft B +.nf +#define PAM_SM_AUTH +.fi +.ft +.sp +.ft B +.nf +#include <security/pam_modules\&.h> +.fi +.ft +.HP \w'int\ pam_sm_authenticate('u +.BI "int pam_sm_authenticate(pam_handle_t\ *" "pamh" ", int\ " "flags" ", int\ " "argc" ", const\ char\ **" "argv" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_sm_authenticate\fR +function is the service module\*(Aqs implementation of the +\fBpam_authenticate\fR(3) +interface\&. +.PP +This function performs the task of authenticating the user\&. +.PP +Valid flags, which may be logically OR\*(Aqd with +\fIPAM_SILENT\fR, are: +.PP +PAM_SILENT +.RS 4 +Do not emit any messages\&. +.RE +.PP +PAM_DISALLOW_NULL_AUTHTOK +.RS 4 +Return +\fBPAM_AUTH_ERR\fR +if the database of authentication tokens for this authentication mechanism has a +\fINULL\fR +entry for the user\&. Without this flag, such a +\fINULL\fR +token will lead to a success without the user being prompted\&. +.RE +.SH "RETURN VALUES" +.PP +PAM_AUTH_ERR +.RS 4 +Authentication failure\&. +.RE +.PP +PAM_CRED_INSUFFICIENT +.RS 4 +For some reason the application does not have sufficient credentials to authenticate the user\&. +.RE +.PP +PAM_AUTHINFO_UNAVAIL +.RS 4 +The modules were not able to access the authentication information\&. This might be due to a network or hardware failure etc\&. +.RE +.PP +PAM_SUCCESS +.RS 4 +The authentication token was successfully updated\&. +.RE +.PP +PAM_USER_UNKNOWN +.RS 4 +The supplied username is not known to the authentication service\&. +.RE +.PP +PAM_MAXTRIES +.RS 4 +One or more of the authentication modules has reached its limit of tries authenticating the user\&. Do not try again\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam\fR(3), +\fBpam_authenticate\fR(3), +\fBpam_sm_setcred\fR(3), +\fBpam_strerror\fR(3), +\fBPAM\fR(8) diff --git a/doc/man/pam_sm_authenticate.3.xml b/doc/man/pam_sm_authenticate.3.xml new file mode 100644 index 0000000..4299726 --- /dev/null +++ b/doc/man/pam_sm_authenticate.3.xml @@ -0,0 +1,152 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> +<refentry id='pam_sm_authenticate'> + <refmeta> + <refentrytitle>pam_sm_authenticate</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_sm_authenticate-name"> + <refname>pam_sm_authenticate</refname> + <refpurpose>PAM service function for user authentication</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv> + <funcsynopsis id='pam_sm_authenticate-synopsis'> + <funcsynopsisinfo>#define PAM_SM_AUTH</funcsynopsisinfo> + <funcsynopsisinfo>#include <security/pam_modules.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_sm_authenticate</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>int <parameter>flags</parameter></paramdef> + <paramdef>int <parameter>argc</parameter></paramdef> + <paramdef>const char **<parameter>argv</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + + <refsect1 id='pam_sm_authenticate-description'> + <title>DESCRIPTION</title> + <para> + The <function>pam_sm_authenticate</function> function is the service + module's implementation of the + <citerefentry> + <refentrytitle>pam_authenticate</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> interface. + </para> + <para> + This function performs the task of authenticating the user. + </para> + <para> + Valid flags, which may be logically OR'd with + <emphasis>PAM_SILENT</emphasis>, are: + </para> + <variablelist> + <varlistentry> + <term>PAM_SILENT</term> + <listitem> + <para> + Do not emit any messages. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_DISALLOW_NULL_AUTHTOK</term> + <listitem> + <para> + Return <emphasis remap='B'>PAM_AUTH_ERR</emphasis> if the + database of authentication tokens for this authentication + mechanism has a <emphasis>NULL</emphasis> entry for the user. + Without this flag, such a <emphasis>NULL</emphasis> token + will lead to a success without the user being prompted. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id="pam_sm_authenticate-return_values"> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_AUTH_ERR</term> + <listitem> + <para> + Authentication failure. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_CRED_INSUFFICIENT</term> + <listitem> + <para> + For some reason the application does not have sufficient + credentials to authenticate the user. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_AUTHINFO_UNAVAIL</term> + <listitem> + <para> + The modules were not able to access the authentication + information. This might be due to a network or hardware + failure etc. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + The authentication token was successfully updated. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_USER_UNKNOWN</term> + <listitem> + <para> + The supplied username is not known to the authentication + service. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_MAXTRIES</term> + <listitem> + <para> + One or more of the authentication modules has reached its + limit of tries authenticating the user. Do not try again. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id='pam_sm_authenticate-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_authenticate</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_sm_setcred</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>PAM</refentrytitle><manvolnum>8</manvolnum> + </citerefentry> + </para> + </refsect1> +</refentry> diff --git a/doc/man/pam_sm_chauthtok.3 b/doc/man/pam_sm_chauthtok.3 new file mode 100644 index 0000000..50918aa --- /dev/null +++ b/doc/man/pam_sm_chauthtok.3 @@ -0,0 +1,143 @@ +'\" t +.\" Title: pam_sm_chauthtok +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_SM_CHAUTHTOK" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_sm_chauthtok \- PAM service function for authentication token management +.SH "SYNOPSIS" +.sp +.ft B +.nf +#define PAM_SM_PASSWORD +.fi +.ft +.sp +.ft B +.nf +#include <security/pam_modules\&.h> +.fi +.ft +.HP \w'int\ pam_sm_chauthtok('u +.BI "int pam_sm_chauthtok(pam_handle_t\ *" "pamh" ", int\ " "flags" ", int\ " "argc" ", const\ char\ **" "argv" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_sm_chauthtok\fR +function is the service module\*(Aqs implementation of the +\fBpam_chauthtok\fR(3) +interface\&. +.PP +This function is used to (re\-)set the authentication token of the user\&. +.PP +Valid flags, which may be logically OR\*(Aqd with +\fIPAM_SILENT\fR, are: +.PP +PAM_SILENT +.RS 4 +Do not emit any messages\&. +.RE +.PP +PAM_CHANGE_EXPIRED_AUTHTOK +.RS 4 +This argument indicates to the module that the user\*(Aqs authentication token (password) should only be changed if it has expired\&. This flag is optional and +\fImust\fR +be combined with one of the following two flags\&. Note, however, the following two options are +\fImutually exclusive\fR\&. +.RE +.PP +PAM_PRELIM_CHECK +.RS 4 +This indicates that the modules are being probed as to their ready status for altering the user\*(Aqs authentication token\&. If the module requires access to another system over some network it should attempt to verify it can connect to this system on receiving this flag\&. If a module cannot establish it is ready to update the user\*(Aqs authentication token it should return +\fBPAM_TRY_AGAIN\fR, this information will be passed back to the application\&. +.sp +If the control value +\fIsufficient\fR +is used in the password stack, the +\fIPAM_PRELIM_CHECK\fR +section of the modules following that control value is not always executed\&. +.RE +.PP +PAM_UPDATE_AUTHTOK +.RS 4 +This informs the module that this is the call it should change the authorization tokens\&. If the flag is logically OR\*(Aqd with +\fBPAM_CHANGE_EXPIRED_AUTHTOK\fR, the token is only changed if it has actually expired\&. +.RE +.PP +The PAM library calls this function twice in succession\&. The first time with +\fBPAM_PRELIM_CHECK\fR +and then, if the module does not return +\fBPAM_TRY_AGAIN\fR, subsequently with +\fBPAM_UPDATE_AUTHTOK\fR\&. It is only on the second call that the authorization token is (possibly) changed\&. +.SH "RETURN VALUES" +.PP +PAM_AUTHTOK_ERR +.RS 4 +The module was unable to obtain the new authentication token\&. +.RE +.PP +PAM_AUTHTOK_RECOVERY_ERR +.RS 4 +The module was unable to obtain the old authentication token\&. +.RE +.PP +PAM_AUTHTOK_LOCK_BUSY +.RS 4 +Cannot change the authentication token since it is currently locked\&. +.RE +.PP +PAM_AUTHTOK_DISABLE_AGING +.RS 4 +Authentication token aging has been disabled\&. +.RE +.PP +PAM_PERM_DENIED +.RS 4 +Permission denied\&. +.RE +.PP +PAM_TRY_AGAIN +.RS 4 +Preliminary check was unsuccessful\&. Signals an immediate return to the application is desired\&. +.RE +.PP +PAM_SUCCESS +.RS 4 +The authentication token was successfully updated\&. +.RE +.PP +PAM_USER_UNKNOWN +.RS 4 +User unknown to password service\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam\fR(3), +\fBpam_chauthtok\fR(3), +\fBpam_sm_chauthtok\fR(3), +\fBpam_strerror\fR(3), +\fBPAM\fR(8) diff --git a/doc/man/pam_sm_chauthtok.3.xml b/doc/man/pam_sm_chauthtok.3.xml new file mode 100644 index 0000000..d8f36d6 --- /dev/null +++ b/doc/man/pam_sm_chauthtok.3.xml @@ -0,0 +1,205 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> +<refentry id='pam_sm_chauthtok'> + <refmeta> + <refentrytitle>pam_sm_chauthtok</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_sm_chauthtok-name"> + <refname>pam_sm_chauthtok</refname> + <refpurpose>PAM service function for authentication token management</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv> + <funcsynopsis id='pam_sm_chauthtok-synopsis'> + <funcsynopsisinfo>#define PAM_SM_PASSWORD</funcsynopsisinfo> + <funcsynopsisinfo>#include <security/pam_modules.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_sm_chauthtok</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>int <parameter>flags</parameter></paramdef> + <paramdef>int <parameter>argc</parameter></paramdef> + <paramdef>const char **<parameter>argv</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + + <refsect1 id='pam_sm_chauthtok-description'> + <title>DESCRIPTION</title> + <para> + The <function>pam_sm_chauthtok</function> function is the service + module's implementation of the + <citerefentry> + <refentrytitle>pam_chauthtok</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> interface. + </para> + <para> + This function is used to (re-)set the authentication token of the user. + </para> + <para> + Valid flags, which may be logically OR'd with + <emphasis>PAM_SILENT</emphasis>, are: + </para> + <variablelist> + <varlistentry> + <term>PAM_SILENT</term> + <listitem> + <para> + Do not emit any messages. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_CHANGE_EXPIRED_AUTHTOK</term> + <listitem> + <para> + This argument indicates to the module that the user's + authentication token (password) should only be changed if + it has expired. This flag is optional and + <emphasis>must</emphasis> be combined with one of the + following two flags. Note, however, the following two options + are <emphasis>mutually exclusive</emphasis>. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_PRELIM_CHECK</term> + <listitem> + <para> + This indicates that the modules are being probed as to + their ready status for altering the user's authentication + token. If the module requires access to another system over + some network it should attempt to verify it can connect to + this system on receiving this flag. If a module cannot establish + it is ready to update the user's authentication token it should + return <emphasis remap='B'>PAM_TRY_AGAIN</emphasis>, this + information will be passed back to the application. + </para> + <para> + If the control value <emphasis>sufficient</emphasis> is used in + the password stack, the <emphasis>PAM_PRELIM_CHECK</emphasis> section + of the modules following that control value is not always executed. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_UPDATE_AUTHTOK</term> + <listitem> + <para> + This informs the module that this is the call it should change + the authorization tokens. If the flag is logically OR'd with + <emphasis remap='B'>PAM_CHANGE_EXPIRED_AUTHTOK</emphasis>, the + token is only changed if it has actually expired. + </para> + </listitem> + </varlistentry> + </variablelist> + <para> + The PAM library calls this function twice in succession. The first + time with <emphasis remap='B'>PAM_PRELIM_CHECK</emphasis> and then, + if the module does not return + <emphasis remap='B'>PAM_TRY_AGAIN</emphasis>, subsequently with + <emphasis remap='B'>PAM_UPDATE_AUTHTOK</emphasis>. It is only on + the second call that the authorization token is (possibly) changed. + </para> + </refsect1> + + <refsect1 id="pam_sm_chauthtok-return_values"> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_AUTHTOK_ERR</term> + <listitem> + <para> + The module was unable to obtain the new authentication token. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_AUTHTOK_RECOVERY_ERR</term> + <listitem> + <para> + The module was unable to obtain the old authentication token. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_AUTHTOK_LOCK_BUSY</term> + <listitem> + <para> + Cannot change the authentication token since it is currently + locked. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_AUTHTOK_DISABLE_AGING</term> + <listitem> + <para> + Authentication token aging has been disabled. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_PERM_DENIED</term> + <listitem> + <para> + Permission denied. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_TRY_AGAIN</term> + <listitem> + <para> + Preliminary check was unsuccessful. Signals an immediate + return to the application is desired. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + The authentication token was successfully updated. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_USER_UNKNOWN</term> + <listitem> + <para> + User unknown to password service. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id='pam_sm_chauthtok-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_chauthtok</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_sm_chauthtok</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>PAM</refentrytitle><manvolnum>8</manvolnum> + </citerefentry> + </para> + </refsect1> +</refentry> diff --git a/doc/man/pam_sm_close_session.3 b/doc/man/pam_sm_close_session.3 new file mode 100644 index 0000000..836a124 --- /dev/null +++ b/doc/man/pam_sm_close_session.3 @@ -0,0 +1,80 @@ +'\" t +.\" Title: pam_sm_close_session +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_SM_CLOSE_SESSION" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_sm_close_session \- PAM service function to terminate session management +.SH "SYNOPSIS" +.sp +.ft B +.nf +#define PAM_SM_SESSION +.fi +.ft +.sp +.ft B +.nf +#include <security/pam_modules\&.h> +.fi +.ft +.HP \w'int\ pam_sm_close_session('u +.BI "int pam_sm_close_session(pam_handle_t\ *" "pamh" ", int\ " "flags" ", int\ " "argc" ", const\ char\ **" "argv" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_sm_close_session\fR +function is the service module\*(Aqs implementation of the +\fBpam_close_session\fR(3) +interface\&. +.PP +This function is called to terminate a session\&. The only valid value for +\fIflags\fR +is zero or: +.PP +PAM_SILENT +.RS 4 +Do not emit any messages\&. +.RE +.SH "RETURN VALUES" +.PP +PAM_SESSION_ERR +.RS 4 +Cannot make/remove an entry for the specified session\&. +.RE +.PP +PAM_SUCCESS +.RS 4 +The session was successfully terminated\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam\fR(3), +\fBpam_close_session\fR(3), +\fBpam_sm_close_session\fR(3), +\fBpam_strerror\fR(3), +\fBPAM\fR(8) diff --git a/doc/man/pam_sm_close_session.3.xml b/doc/man/pam_sm_close_session.3.xml new file mode 100644 index 0000000..db579ff --- /dev/null +++ b/doc/man/pam_sm_close_session.3.xml @@ -0,0 +1,100 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-close.org/docbook/xml/4.1.2/docbookx.dtd"> +<refentry id='pam_sm_close_session'> + <refmeta> + <refentrytitle>pam_sm_close_session</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_sm_close_session-name"> + <refname>pam_sm_close_session</refname> + <refpurpose>PAM service function to terminate session management</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv> + <funcsynopsis id='pam_sm_close_session-synopsis'> + <funcsynopsisinfo>#define PAM_SM_SESSION</funcsynopsisinfo> + <funcsynopsisinfo>#include <security/pam_modules.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_sm_close_session</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>int <parameter>flags</parameter></paramdef> + <paramdef>int <parameter>argc</parameter></paramdef> + <paramdef>const char **<parameter>argv</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + + <refsect1 id='pam_sm_close_session-description'> + <title>DESCRIPTION</title> + <para> + The <function>pam_sm_close_session</function> function is the service + module's implementation of the + <citerefentry> + <refentrytitle>pam_close_session</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> interface. + </para> + <para> + This function is called to terminate a session. The only valid + value for <varname role='parameter'>flags</varname> is zero or: + </para> + <variablelist> + <varlistentry> + <term>PAM_SILENT</term> + <listitem> + <para> + Do not emit any messages. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id="pam_sm_close_session-return_values"> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_SESSION_ERR</term> + <listitem> + <para> + Cannot make/remove an entry for the specified session. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + The session was successfully terminated. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id='pam_sm_close_session-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_close_session</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_sm_close_session</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>PAM</refentrytitle><manvolnum>8</manvolnum> + </citerefentry> + </para> + </refsect1> +</refentry> diff --git a/doc/man/pam_sm_open_session.3 b/doc/man/pam_sm_open_session.3 new file mode 100644 index 0000000..94813d0 --- /dev/null +++ b/doc/man/pam_sm_open_session.3 @@ -0,0 +1,80 @@ +'\" t +.\" Title: pam_sm_open_session +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_SM_OPEN_SESSION" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_sm_open_session \- PAM service function to start session management +.SH "SYNOPSIS" +.sp +.ft B +.nf +#define PAM_SM_SESSION +.fi +.ft +.sp +.ft B +.nf +#include <security/pam_modules\&.h> +.fi +.ft +.HP \w'int\ pam_sm_open_session('u +.BI "int pam_sm_open_session(pam_handle_t\ *" "pamh" ", int\ " "flags" ", int\ " "argc" ", const\ char\ **" "argv" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_sm_open_session\fR +function is the service module\*(Aqs implementation of the +\fBpam_open_session\fR(3) +interface\&. +.PP +This function is called to commence a session\&. The only valid value for +\fIflags\fR +is zero or: +.PP +PAM_SILENT +.RS 4 +Do not emit any messages\&. +.RE +.SH "RETURN VALUES" +.PP +PAM_SESSION_ERR +.RS 4 +Cannot make/remove an entry for the specified session\&. +.RE +.PP +PAM_SUCCESS +.RS 4 +The session was successfully started\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam\fR(3), +\fBpam_open_session\fR(3), +\fBpam_sm_close_session\fR(3), +\fBpam_strerror\fR(3), +\fBPAM\fR(8) diff --git a/doc/man/pam_sm_open_session.3.xml b/doc/man/pam_sm_open_session.3.xml new file mode 100644 index 0000000..0c9ec77 --- /dev/null +++ b/doc/man/pam_sm_open_session.3.xml @@ -0,0 +1,100 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> +<refentry id='pam_sm_open_session'> + <refmeta> + <refentrytitle>pam_sm_open_session</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_sm_open_session-name"> + <refname>pam_sm_open_session</refname> + <refpurpose>PAM service function to start session management</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv> + <funcsynopsis id='pam_sm_open_session-synopsis'> + <funcsynopsisinfo>#define PAM_SM_SESSION</funcsynopsisinfo> + <funcsynopsisinfo>#include <security/pam_modules.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_sm_open_session</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>int <parameter>flags</parameter></paramdef> + <paramdef>int <parameter>argc</parameter></paramdef> + <paramdef>const char **<parameter>argv</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + + <refsect1 id='pam_sm_open_session-description'> + <title>DESCRIPTION</title> + <para> + The <function>pam_sm_open_session</function> function is the service + module's implementation of the + <citerefentry> + <refentrytitle>pam_open_session</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> interface. + </para> + <para> + This function is called to commence a session. The only valid + value for <varname role='parameter'>flags</varname> is zero or: + </para> + <variablelist> + <varlistentry> + <term>PAM_SILENT</term> + <listitem> + <para> + Do not emit any messages. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id="pam_sm_open_session-return_values"> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_SESSION_ERR</term> + <listitem> + <para> + Cannot make/remove an entry for the specified session. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + The session was successfully started. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id='pam_sm_open_session-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_open_session</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_sm_close_session</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>PAM</refentrytitle><manvolnum>8</manvolnum> + </citerefentry> + </para> + </refsect1> +</refentry> diff --git a/doc/man/pam_sm_setcred.3 b/doc/man/pam_sm_setcred.3 new file mode 100644 index 0000000..fbeb9a8 --- /dev/null +++ b/doc/man/pam_sm_setcred.3 @@ -0,0 +1,134 @@ +'\" t +.\" Title: pam_sm_setcred +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_SM_SETCRED" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_sm_setcred \- PAM service function to alter credentials +.SH "SYNOPSIS" +.sp +.ft B +.nf +#define PAM_SM_AUTH +.fi +.ft +.sp +.ft B +.nf +#include <security/pam_modules\&.h> +.fi +.ft +.HP \w'int\ pam_sm_setcred('u +.BI "int pam_sm_setcred(pam_handle_t\ *" "pamh" ", int\ " "flags" ", int\ " "argc" ", const\ char\ **" "argv" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_sm_setcred\fR +function is the service module\*(Aqs implementation of the +\fBpam_setcred\fR(3) +interface\&. +.PP +This function performs the task of altering the credentials of the user with respect to the corresponding authorization scheme\&. Generally, an authentication module may have access to more information about a user than their authentication token\&. This function is used to make such information available to the application\&. It should only be called +\fIafter\fR +the user has been authenticated but before a session has been established\&. +.PP +Valid flags, which may be logically OR\*(Aqd with +\fIPAM_SILENT\fR, are: +.PP +PAM_SILENT +.RS 4 +Do not emit any messages\&. +.RE +.PP +PAM_ESTABLISH_CRED +.RS 4 +Initialize the credentials for the user\&. +.RE +.PP +PAM_DELETE_CRED +.RS 4 +Delete the credentials associated with the authentication service\&. +.RE +.PP +PAM_REINITIALIZE_CRED +.RS 4 +Reinitialize the user credentials\&. +.RE +.PP +PAM_REFRESH_CRED +.RS 4 +Extend the lifetime of the user credentials\&. +.RE +.PP +The way the +\fBauth\fR +stack is navigated in order to evaluate the +\fBpam_setcred\fR() function call, independent of the +\fBpam_sm_setcred\fR() return codes, is exactly the same way that it was navigated when evaluating the +\fBpam_authenticate\fR() library call\&. Typically, if a stack entry was ignored in evaluating +\fBpam_authenticate\fR(), it will be ignored when libpam evaluates the +\fBpam_setcred\fR() function call\&. Otherwise, the return codes from each module specific +\fBpam_sm_setcred\fR() call are treated as +\fBrequired\fR\&. +.SH "RETURN VALUES" +.PP +PAM_CRED_UNAVAIL +.RS 4 +This module cannot retrieve the user\*(Aqs credentials\&. +.RE +.PP +PAM_CRED_EXPIRED +.RS 4 +The user\*(Aqs credentials have expired\&. +.RE +.PP +PAM_CRED_ERR +.RS 4 +This module was unable to set the credentials of the user\&. +.RE +.PP +PAM_SUCCESS +.RS 4 +The user credential was successfully set\&. +.RE +.PP +PAM_USER_UNKNOWN +.RS 4 +The user is not known to this authentication module\&. +.RE +.PP +These, non\-\fIPAM_SUCCESS\fR, return values will typically lead to the credential stack +\fIfailing\fR\&. The first such error will dominate in the return value of +\fBpam_setcred\fR()\&. +.SH "SEE ALSO" +.PP +\fBpam\fR(3), +\fBpam_authenticate\fR(3), +\fBpam_setcred\fR(3), +\fBpam_sm_authenticate\fR(3), +\fBpam_strerror\fR(3), +\fBPAM\fR(8) diff --git a/doc/man/pam_sm_setcred.3.xml b/doc/man/pam_sm_setcred.3.xml new file mode 100644 index 0000000..5cfe899 --- /dev/null +++ b/doc/man/pam_sm_setcred.3.xml @@ -0,0 +1,185 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> +<refentry id='pam_sm_setcred'> + <refmeta> + <refentrytitle>pam_sm_setcred</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_sm_setcred-name"> + <refname>pam_sm_setcred</refname> + <refpurpose>PAM service function to alter credentials</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv> + <funcsynopsis id='pam_sm_setcred-synopsis'> + <funcsynopsisinfo>#define PAM_SM_AUTH</funcsynopsisinfo> + <funcsynopsisinfo>#include <security/pam_modules.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_sm_setcred</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>int <parameter>flags</parameter></paramdef> + <paramdef>int <parameter>argc</parameter></paramdef> + <paramdef>const char **<parameter>argv</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + + <refsect1 id='pam_sm_setcred-description'> + <title>DESCRIPTION</title> + <para> + The <function>pam_sm_setcred</function> function is the service + module's implementation of the + <citerefentry> + <refentrytitle>pam_setcred</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> interface. + </para> + <para> + This function performs the task of altering the credentials of the + user with respect to the corresponding authorization + scheme. Generally, an authentication module may have access to more + information about a user than their authentication token. This + function is used to make such information available to the + application. It should only be called <emphasis>after</emphasis> the + user has been authenticated but before a session has been established. + </para> + <para> + Valid flags, which may be logically OR'd with + <emphasis>PAM_SILENT</emphasis>, are: + </para> + <variablelist> + <varlistentry> + <term>PAM_SILENT</term> + <listitem> + <para> + Do not emit any messages. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_ESTABLISH_CRED</term> + <listitem> + <para>Initialize the credentials for the user.</para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_DELETE_CRED</term> + <listitem> + <para> + Delete the credentials associated with the authentication service. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_REINITIALIZE_CRED</term> + <listitem> + <para> + Reinitialize the user credentials. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_REFRESH_CRED</term> + <listitem> + <para> + Extend the lifetime of the user credentials. + </para> + </listitem> + </varlistentry> + </variablelist> + <para> + The way the <emphasis remap='B'>auth</emphasis> stack is + navigated in order to evaluate the <function>pam_setcred</function>() + function call, independent of the <function>pam_sm_setcred</function>() + return codes, is exactly the same way that it was navigated when + evaluating the <function>pam_authenticate</function>() library + call. Typically, if a stack entry was ignored in evaluating + <function>pam_authenticate</function>(), it will be ignored when + libpam evaluates the <function>pam_setcred</function>() function + call. Otherwise, the return codes from each module specific + <function>pam_sm_setcred</function>() call are treated as + <emphasis remap='B'>required</emphasis>. + </para> + </refsect1> + + <refsect1 id="pam_sm_setcred-return_values"> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_CRED_UNAVAIL</term> + <listitem> + <para> + This module cannot retrieve the user's credentials. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_CRED_EXPIRED</term> + <listitem> + <para> + The user's credentials have expired. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_CRED_ERR</term> + <listitem> + <para> + This module was unable to set the credentials of the user. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + The user credential was successfully set. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_USER_UNKNOWN</term> + <listitem> + <para> + The user is not known to this authentication module. + </para> + </listitem> + </varlistentry> + </variablelist> + <para> + These, non-<emphasis>PAM_SUCCESS</emphasis>, return values will + typically lead to the credential stack <emphasis>failing</emphasis>. + The first such error will dominate in the return value of + <function>pam_setcred</function>(). + </para> + </refsect1> + + <refsect1 id='pam_sm_setcred-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_authenticate</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_setcred</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_sm_authenticate</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>PAM</refentrytitle><manvolnum>8</manvolnum> + </citerefentry> + </para> + </refsect1> +</refentry> diff --git a/doc/man/pam_start.3 b/doc/man/pam_start.3 new file mode 100644 index 0000000..2a9d24b --- /dev/null +++ b/doc/man/pam_start.3 @@ -0,0 +1,104 @@ +'\" t +.\" Title: pam_start +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_START" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_start \- initialization of PAM transaction +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_appl\&.h> +.fi +.ft +.HP \w'int\ pam_start('u +.BI "int pam_start(const\ char\ *" "service_name" ", const\ char\ *" "user" ", const\ struct\ pam_conv\ *" "pam_conversation" ", pam_handle_t\ **" "pamh" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_start\fR +function creates the PAM context and initiates the PAM transaction\&. It is the first of the PAM functions that needs to be called by an application\&. The transaction state is contained entirely within the structure identified by this handle, so it is possible to have multiple transactions in parallel\&. But it is not possible to use the same handle for different transactions, a new one is needed for every new context\&. +.PP +The +\fIservice_name\fR +argument specifies the name of the service to apply and will be stored as PAM_SERVICE item in the new context\&. The policy for the service will be read from the file +/etc/pam\&.d/service_name +or, if that file does not exist, from +/etc/pam\&.conf\&. +.PP +The +\fIuser\fR +argument can specify the name of the target user and will be stored as PAM_USER item\&. If the argument is NULL, the module has to ask for this item if necessary\&. +.PP +The +\fIpam_conversation\fR +argument points to a +\fIstruct pam_conv\fR +describing the conversation function to use\&. An application must provide this for direct communication between a loaded module and the application\&. +.PP +Following a successful return (PAM_SUCCESS) the contents of +\fIpamh\fR +is a handle that contains the PAM context for successive calls to the PAM functions\&. In an error case is the content of +\fIpamh\fR +undefined\&. +.PP +The +\fIpam_handle_t\fR +is a blind structure and the application should not attempt to probe it directly for information\&. Instead the PAM library provides the functions +\fBpam_set_item\fR(3) +and +\fBpam_get_item\fR(3)\&. The PAM handle cannot be used for mulitiple authentications at the same time as long as +\fBpam_end\fR +was not called on it before\&. +.SH "RETURN VALUES" +.PP +PAM_ABORT +.RS 4 +General failure\&. +.RE +.PP +PAM_BUF_ERR +.RS 4 +Memory buffer error\&. +.RE +.PP +PAM_SUCCESS +.RS 4 +Transaction was successful created\&. +.RE +.PP +PAM_SYSTEM_ERR +.RS 4 +System error, for example a NULL pointer was submitted instead of a pointer to data\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam_get_data\fR(3), +\fBpam_set_data\fR(3), +\fBpam_end\fR(3), +\fBpam_strerror\fR(3) diff --git a/doc/man/pam_start.3.xml b/doc/man/pam_start.3.xml new file mode 100644 index 0000000..9b370f5 --- /dev/null +++ b/doc/man/pam_start.3.xml @@ -0,0 +1,147 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> + +<refentry id='pam_start'> + + <refmeta> + <refentrytitle>pam_start</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_start-name"> + <refname>pam_start</refname> + <refpurpose>initialization of PAM transaction</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv> + <funcsynopsis id="pam_start-synopsis"> + <funcsynopsisinfo>#include <security/pam_appl.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>pam_start</function></funcdef> + <paramdef>const char *<parameter>service_name</parameter></paramdef> + <paramdef>const char *<parameter>user</parameter></paramdef> + <paramdef>const struct pam_conv *<parameter>pam_conversation</parameter></paramdef> + <paramdef>pam_handle_t **<parameter>pamh</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + + <refsect1 id="pam_start-description"> + <title>DESCRIPTION</title> + <para> + The <function>pam_start</function> function creates the PAM context + and initiates the PAM transaction. It is the first of the PAM + functions that needs to be called by an application. The transaction + state is contained entirely within the structure identified by this + handle, so it is possible to have multiple transactions in parallel. + But it is not possible to use the same handle for different + transactions, a new one is needed for every new context. + </para> + + <para> + The <emphasis>service_name</emphasis> argument specifies the name + of the service to apply and will be stored as PAM_SERVICE item in + the new context. The policy for the service will be read from the + file <filename>/etc/pam.d/service_name</filename> or, if that file + does not exist, from <filename>/etc/pam.conf</filename>. + </para> + + <para> + The <emphasis>user</emphasis> argument can specify the name + of the target user and will be stored as PAM_USER item. If + the argument is NULL, the module has to ask for this item if + necessary. + </para> + + <para> + The <emphasis>pam_conversation</emphasis> argument points to + a <emphasis>struct pam_conv</emphasis> describing the + conversation function to use. An application must provide this + for direct communication between a loaded module and the + application. + </para> + + <para> + Following a successful return (PAM_SUCCESS) the contents of + <emphasis>pamh</emphasis> is a handle that contains the PAM + context for successive calls to the PAM functions. In an error + case is the content of <emphasis>pamh</emphasis> undefined. + </para> + + <para> + The <emphasis>pam_handle_t</emphasis> is a blind structure and + the application should not attempt to probe it directly for + information. Instead the PAM library provides the functions + <citerefentry> + <refentrytitle>pam_set_item</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> and + <citerefentry> + <refentrytitle>pam_get_item</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>. + The PAM handle cannot be used for mulitiple authentications at the + same time as long as <function>pam_end</function> was not called on + it before. + </para> + </refsect1> + <refsect1 id="pam_start-return_values"> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_ABORT</term> + <listitem> + <para> + General failure. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_BUF_ERR</term> + <listitem> + <para> + Memory buffer error. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + Transaction was successful created. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SYSTEM_ERR</term> + <listitem> + <para> + System error, for example a NULL pointer was submitted + instead of a pointer to data. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id="pam_start-see_also"> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam_get_data</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_set_data</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_end</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> + </para> + </refsect1> +</refentry> diff --git a/doc/man/pam_strerror.3 b/doc/man/pam_strerror.3 new file mode 100644 index 0000000..ccd7a05 --- /dev/null +++ b/doc/man/pam_strerror.3 @@ -0,0 +1,52 @@ +'\" t +.\" Title: pam_strerror +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_STRERROR" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_strerror \- return string describing PAM error code +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_appl\&.h> +.fi +.ft +.HP \w'const\ char\ *pam_strerror('u +.BI "const char *pam_strerror(pam_handle_t\ *" "pamh" ", int\ " "errnum" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_strerror\fR +function returns a pointer to a string describing the error code passed in the argument +\fIerrnum\fR, possibly using the LC_MESSAGES part of the current locale to select the appropriate language\&. This string must not be modified by the application\&. No library function will modify this string\&. +.SH "RETURN VALUES" +.PP +This function returns always a pointer to a string\&. +.SH "SEE ALSO" +.PP +\fBpam\fR(8) diff --git a/doc/man/pam_strerror.3.xml b/doc/man/pam_strerror.3.xml new file mode 100644 index 0000000..954e131 --- /dev/null +++ b/doc/man/pam_strerror.3.xml @@ -0,0 +1,58 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> + +<refentry id='pam_strerror'> + + <refmeta> + <refentrytitle>pam_strerror</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_strerror-name"> + <refname>pam_strerror</refname> + <refpurpose>return string describing PAM error code</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv> + <funcsynopsis id="pam_strerror-synopsis"> + <funcsynopsisinfo>#include <security/pam_appl.h></funcsynopsisinfo> + <funcprototype> + <funcdef>const char *<function>pam_strerror</function></funcdef> + <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>int <parameter>errnum</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + + <refsect1 id="pam_strerror-description"> + <title>DESCRIPTION</title> + <para> + The <function>pam_strerror</function> function returns a pointer to + a string describing the error code passed in the argument + <emphasis>errnum</emphasis>, possibly using the LC_MESSAGES part of + the current locale to select the appropriate language. This string + must not be modified by the application. No library function will + modify this string. + </para> + </refsect1> + <refsect1 id="pam_strerror-return_values"> + <title>RETURN VALUES</title> + <para> + This function returns always a pointer to a string. + </para> + </refsect1> + + <refsect1 id="pam_strerror-see_also"> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum> + </citerefentry> + </para> + </refsect1> +</refentry> diff --git a/doc/man/pam_syslog.3 b/doc/man/pam_syslog.3 new file mode 100644 index 0000000..3543e10 --- /dev/null +++ b/doc/man/pam_syslog.3 @@ -0,0 +1,77 @@ +'\" t +.\" Title: pam_syslog +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_SYSLOG" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_syslog, pam_vsyslog \- send messages to the system logger +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <syslog\&.h> +.fi +.ft +.sp +.ft B +.nf +#include <security/pam_ext\&.h> +.fi +.ft +.HP \w'void\ pam_syslog('u +.BI "void pam_syslog(const\ pam_handle_t\ *" "pamh" ", int\ " "priority" ", const\ char\ *" "fmt" ", " "\&.\&.\&." ");" +.HP \w'void\ pam_vsyslog('u +.BI "void pam_vsyslog(const\ pam_handle_t\ *" "pamh" ", int\ " "priority" ", const\ char\ *" "fmt" ", va_list\ " "args" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_syslog\fR +function logs messages using +\fBsyslog\fR(3) +and is intended for internal use by Linux\-PAM and PAM service modules\&. The +\fIpriority\fR +argument is formed by ORing the facility and the level values as documented in the +\fBsyslog\fR(3) +manual page\&. +.PP +The +\fBpam_vsyslog\fR +function performs the same task as +\fBpam_syslog()\fR +with the difference that it takes a set of arguments which have been obtained using the +\fBstdarg\fR(3) +variable argument list macros\&. +.SH "SEE ALSO" +.PP +\fBpam\fR(8) +.SH "STANDARDS" +.PP +The +\fBpam_syslog\fR +and +\fBpam_vsyslog\fR +functions are Linux\-PAM extensions\&. diff --git a/doc/man/pam_syslog.3.xml b/doc/man/pam_syslog.3.xml new file mode 100644 index 0000000..ca28587 --- /dev/null +++ b/doc/man/pam_syslog.3.xml @@ -0,0 +1,82 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> + +<refentry id="pam_syslog"> + + <refmeta> + <refentrytitle>pam_syslog</refentrytitle> + <manvolnum>3</manvolnum> + <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_syslog-name"> + <refname>pam_syslog</refname> + <refname>pam_vsyslog</refname> + <refpurpose>send messages to the system logger</refpurpose> + </refnamediv> + +<!-- body begins here --> + + <refsynopsisdiv id="pam_syslog-synopsis"> + <funcsynopsis> + <funcsynopsisinfo>#include <syslog.h></funcsynopsisinfo> + <funcsynopsisinfo>#include <security/pam_ext.h></funcsynopsisinfo> + <funcprototype> + <funcdef>void <function>pam_syslog</function></funcdef> + <paramdef>const pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>int <parameter>priority</parameter></paramdef> + <paramdef>const char *<parameter>fmt</parameter></paramdef> + <paramdef><parameter>...</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef>void <function>pam_vsyslog</function></funcdef> + <paramdef>const pam_handle_t *<parameter>pamh</parameter></paramdef> + <paramdef>int <parameter>priority</parameter></paramdef> + <paramdef>const char *<parameter>fmt</parameter></paramdef> + <paramdef>va_list <parameter>args</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1 id='pam_syslog-description'> + <title>DESCRIPTION</title> + <para> + The <function>pam_syslog</function> function logs messages using + <citerefentry> + <refentrytitle>syslog</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> and is intended for internal use by Linux-PAM and + PAM service modules. The <emphasis>priority</emphasis> argument is + formed by ORing the facility and the level values as documented + in the <citerefentry> + <refentrytitle>syslog</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> manual page. + </para> + <para> + The <function>pam_vsyslog</function> function performs the same + task as <function>pam_syslog()</function> with the difference + that it takes a set of arguments which have been obtained using + the <citerefentry> + <refentrytitle>stdarg</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> variable argument list macros. + </para> + </refsect1> + + <refsect1 id='pam_syslog-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum> + </citerefentry> + </para> + </refsect1> + + <refsect1 id='pam_syslog-standards'> + <title>STANDARDS</title> + <para> + The <function>pam_syslog</function> and <function>pam_vsyslog</function> + functions are Linux-PAM extensions. + </para> + </refsect1> + +</refentry> diff --git a/doc/man/pam_verror.3 b/doc/man/pam_verror.3 new file mode 100644 index 0000000..a0292f4 --- /dev/null +++ b/doc/man/pam_verror.3 @@ -0,0 +1 @@ +.so pam_error.3 diff --git a/doc/man/pam_vinfo.3 b/doc/man/pam_vinfo.3 new file mode 100644 index 0000000..4aea758 --- /dev/null +++ b/doc/man/pam_vinfo.3 @@ -0,0 +1 @@ +.so pam_info.3 diff --git a/doc/man/pam_vprompt.3 b/doc/man/pam_vprompt.3 new file mode 100644 index 0000000..cec7f44 --- /dev/null +++ b/doc/man/pam_vprompt.3 @@ -0,0 +1 @@ +.so pam_prompt.3 diff --git a/doc/man/pam_vsyslog.3 b/doc/man/pam_vsyslog.3 new file mode 100644 index 0000000..8d6a07e --- /dev/null +++ b/doc/man/pam_vsyslog.3 @@ -0,0 +1 @@ +.so pam_syslog.3 diff --git a/doc/man/pam_xauth_data.3 b/doc/man/pam_xauth_data.3 new file mode 100644 index 0000000..6b9f8d9 --- /dev/null +++ b/doc/man/pam_xauth_data.3 @@ -0,0 +1,84 @@ +'\" t +.\" Title: pam_xauth_data +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_XAUTH_DATA" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_xauth_data \- structure containing X authentication data +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_appl\&.h> +.fi +.ft +.sp +.nf +struct pam_xauth_data { + int namelen; + char *name; + int datalen; + char *data; +}; + +.fi +.SH "DESCRIPTION" +.PP +The +\fBpam_xauth_data\fR +structure contains X authentication data used to make a connection to an X display\&. Using this mechanism, an application can communicate X authentication data to PAM service modules\&. This allows modules to make a connection to the user\*(Aqs X display in order to label the user\*(Aqs session on login, display visual feedback or for other purposes\&. +.PP +The +\fIname\fR +field contains the name of the authentication method, such as "MIT\-MAGIC\-COOKIE\-1"\&. The +\fInamelen\fR +field contains the length of this string, not including the trailing NUL character\&. +.PP +The +\fIdata\fR +field contains the authentication method\-specific data corresponding to the specified name\&. The +\fIdatalen\fR +field contains its length in bytes\&. +.PP +The X authentication data can be changed with the +\fIPAM_XAUTH_DATA\fR +item\&. It can be queried and set with +\fBpam_get_item\fR(3) +and +\fBpam_set_item \fR(3) +respectively\&. The value used to set it should be a pointer to a pam_xauth_data structure\&. An internal copy of both the structure itself and its fields is made by PAM when setting the item\&. +.SH "SEE ALSO" +.PP +\fBpam_start\fR(3), +\fBpam_get_item\fR(3), +.SH "STANDARDS" +.PP +The +\fBpam_xauth_data\fR +structure and +\fIPAM_XAUTH_DATA\fR +item are Linux\-PAM extensions\&. diff --git a/doc/mwg/Linux-PAM_MWG.xml b/doc/mwg/Linux-PAM_MWG.xml new file mode 100644 index 0000000..9274593 --- /dev/null +++ b/doc/mwg/Linux-PAM_MWG.xml @@ -0,0 +1,656 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<book id="mwg"> + <bookinfo> + <title>The Linux-PAM Module Writers' Guide</title> + <authorgroup> + <author> + <firstname>Andrew G.</firstname> + <surname>Morgan</surname> + <email>morgan@kernel.org</email> + </author> + <author> + <firstname>Thorsten</firstname> + <surname>Kukuk</surname> + <email>kukuk@thkukuk.de</email> + </author> + </authorgroup> + <releaseinfo>Version 1.1.2, 31. August 2010</releaseinfo> + <abstract> + <para> + This manual documents what a programmer needs to know in order + to write a module that conforms to the + <emphasis remap='B'>Linux-PAM</emphasis> standard.It also + discusses some security issues from the point of view of the + module programmer. + </para> + </abstract> + </bookinfo> + + <chapter id="mwg-introduction"> + <title>Introduction</title> + <section id="mwg-introduction-description"> + <title>Description</title> + <para> + <emphasis remap='B'>Linux-PAM</emphasis> (Pluggable Authentication + Modules for Linux) is a library that enables the local system + administrator to choose how individual applications authenticate + users. For an overview of the + <emphasis remap='B'>Linux-PAM</emphasis> library see the + <emphasis>Linux-PAM System Administrators' Guide</emphasis>. + </para> + <para> + A <emphasis remap='B'>Linux-PAM</emphasis> module is a single + executable binary file that can be loaded by the + <emphasis remap='B'>Linux-PAM</emphasis> interface library. + This PAM library is configured locally with a system file, + <filename>/etc/pam.conf</filename>, to authenticate a user + request via the locally available authentication modules. The + modules themselves will usually be located in the directory + <filename>/lib/security</filename> (or + <filename>/lib64/security</filename>, depending on the architecture) + and take the form of dynamically loadable object files (see + <citerefentry> + <refentrytitle>dlopen</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>. Alternatively, the modules can be statically + linked into the <emphasis remap='B'>Linux-PAM</emphasis> library; + this is mostly to allow <emphasis remap='B'>Linux-PAM</emphasis> to + be used on platforms without dynamic linking available, but this is + a <emphasis>deprecated</emphasis> functionality. It is the + <emphasis remap='B'>Linux-PAM</emphasis> interface that is called + by an application and it is the responsibility of the library to + locate, load and call the appropriate functions in a + <emphasis remap='B'>Linux-PAM</emphasis>-module. + </para> + <para> + Except for the immediate purpose of interacting with the user + (entering a password etc..) the module should never call the + application directly. This exception requires a "conversation + mechanism" which is documented below. + </para> + </section> + + <section id="mwg-introduction-synopsis"> + <title>Synopsis</title> + <programlisting> +#include <security/pam_modules.h> + +gcc -fPIC -c pam_module.c +gcc -shared -o pam_module.so pam_module.o -lpam + </programlisting> + </section> + </chapter> + + <chapter id="mwg-expected-by-module"> + <title>What can be expected by the module</title> + <para> + Here we list the interface that the conventions that all + <emphasis remap='B'>Linux-PAM</emphasis> modules must adhere to. + </para> + <section id="mwg-expected-by-module-item"> + <title> + Getting and setting <emphasis>PAM_ITEM</emphasis>s and + <emphasis>data</emphasis> + </title> + <para> + First, we cover what the module should expect from the + <emphasis remap='B'>Linux-PAM</emphasis> library and a + <emphasis remap='B'>Linux-PAM</emphasis> aware application. + Essentially this is the <filename>libpam.*</filename> library. + </para> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_set_data.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_get_data.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_set_item.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_get_item.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_get_user.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_conv.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_putenv.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_getenv.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_getenvlist.xml"/> + </section> + <section id="mwg-expected-by-module-other"> + <title> + Other functions provided by <filename>libpam</filename> + </title> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_strerror.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_fail_delay.xml"/> + </section> + </chapter> + + <chapter id="mwg-expected-of-module"> + <title>What is expected of a module</title> + <para> + The module must supply a sub-set of the six functions listed + below. Together they define the function of a + <emphasis remap='B'>Linux-PAM module</emphasis>. Module developers + are strongly urged to read the comments on security that follow + this list. + </para> + <section id="mwg-expected-of-module-overview"> + <title>Overview</title> + <para> + The six module functions are grouped into four independent + management groups. These groups are as follows: + <emphasis>authentication</emphasis>, <emphasis>account</emphasis>, + <emphasis>session</emphasis> and <emphasis>password</emphasis>. + To be properly defined, a module must define all functions within + at least one of these groups. A single module may contain the + necessary functions for <emphasis>all</emphasis> four groups. + </para> + <section id="mwg-expected-of-module-overview-1"> + <title>Functional independence</title> + <para> + The independence of the four groups of service a module can + offer means that the module should allow for the possibility + that any one of these four services may legitimately be called + in any order. Thus, the module writer should consider the + appropriateness of performing a service without the prior + success of some other part of the module. + </para> + <para> + As an informative example, consider the possibility that an + application applies to change a user's authentication token, + without having first requested that + <emphasis remap='B'>Linux-PAM</emphasis> authenticate the + user. In some cases this may be deemed appropriate: when + <command>root</command> wants to change the authentication + token of some lesser user. In other cases it may not be + appropriate: when <command>joe</command> maliciously wants + to reset <command>alice</command>'s password; or when anyone + other than the user themself wishes to reset their + <emphasis>KERBEROS</emphasis> authentication token. A policy + for this action should be defined by any reasonable + authentication scheme, the module writer should consider + this when implementing a given module. + </para> + </section> + <section id="mwg-expected-of-module-overview-2"> + <title>Minimizing administration problems</title> + <para> + To avoid system administration problems and the poor + construction of a <filename>/etc/pam.conf</filename> file, + the module developer may define all six of the following + functions. For those functions that would not be called, + the module should return <errorname>PAM_SERVICE_ERR</errorname> + and write an appropriate message to the system log. When + this action is deemed inappropriate, the function would + simply return <errorname>PAM_IGNORE</errorname>. + </para> + </section> + <section id="mwg-expected-of-module-overview-3"> + <title>Arguments supplied to the module</title> + <para> + The <parameter>flags</parameter> argument of each of + the following functions can be logically OR'd with + <parameter>PAM_SILENT</parameter>, which is used to inform the + module to not pass any <emphasis>text</emphasis> (errors or + warnings) application. + </para> + <para> + The <parameter>argc</parameter> and <parameter>argv</parameter> + arguments are taken from the line appropriate to this + module---that is, with the <emphasis>service_name</emphasis> + matching that of the application---in the configuration file + (see the <emphasis remap='B'>Linux-PAM</emphasis> + System Administrators' Guide). Together these two parameters + provide the number of arguments and an array of pointers to + the individual argument tokens. This will be familiar to C + programmers as the ubiquitous method of passing command arguments + to the function <function>main()</function>. Note, however, that + the first argument (<parameter>argv[0]</parameter>) is a true + argument and <emphasis>not</emphasis> the name of the module. + </para> + </section> + </section> + <section id="mwg-expected-of-module-auth"> + <title>Authentication management</title> + <para> + To be correctly initialized, <parameter>PAM_SM_AUTH</parameter> + must be <command>#define</command>'d prior to including + <function><security/pam_modules.h></function>. This will + ensure that the prototypes for static modules are properly declared. + </para> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_sm_authenticate.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_sm_setcred.xml"/> + </section> + <section id="mwg-expected-of-module-acct"> + <title>Account management</title> + <para> + To be correctly initialized, <parameter>PAM_SM_ACCOUNT</parameter> + must be <command>#define</command>'d prior to including + <function><security/pam_modules.h></function>. This will + ensure that the prototypes for static modules are properly declared. + </para> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_sm_acct_mgmt.xml"/> + </section> + <section id="mwg-expected-of-module-session"> + <title>Session management</title> + <para> + To be correctly initialized, <parameter>PAM_SM_SESSION</parameter> + must be <command>#define</command>'d prior to including + <function><security/pam_modules.h></function>. This will + ensure that the prototypes for static modules are properly declared. + </para> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_sm_open_session.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_sm_close_session.xml"/> + </section> + <section id="mwg-expected-of-module-chauthtok"> + <title>Authentication token management</title> + <para> + To be correctly initialized, <parameter>PAM_SM_PASSWORD</parameter> + must be <command>#define</command>'d prior to including + <function><security/pam_modules.h></function>. This will + ensure that the prototypes for static modules are properly declared. + </para> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_sm_chauthtok.xml"/> + </section> + </chapter> + + <chapter id="mwg-see-options"> + <title>Generic optional arguments</title> + <para> + Here we list the generic arguments that all modules can expect to + be passed. They are not mandatory, and their absence should be + accepted without comment by the module. + </para> + <variablelist> + <varlistentry> + <term>debug</term> + <listitem> + <para> + Use the <citerefentry> + <refentrytitle>pam_syslog</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> call to log debugging information to the system + log files. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>use_first_pass</term> + <listitem> + <para> + The module should not prompt the user for a password. + Instead, it should obtain the previously typed password + (by a call to <function>pam_get_item()</function> for the + <parameter>PAM_AUTHTOK</parameter> item), and use that. If + that doesn't work, then the user will not be authenticated. + (This option is intended for <command>auth</command> and + <command>passwd</command> modules only). + </para> + </listitem> + </varlistentry> + </variablelist> + </chapter> + + <chapter id="mwg-see-programming"> + <title>Programming notes</title> + <para> + Here we collect some pointers for the module writer to bear in mind + when writing/developing a <emphasis remap='B'>Linux-PAM</emphasis> + compatible module. + </para> + + <section id="mwg-see-programming-sec"> + <title>Security issues for module creation</title> + <section id="mwg-see-programming-sec-res"> + <title>Sufficient resources</title> + <para> + Care should be taken to ensure that the proper execution + of a module is not compromised by a lack of system resources. + If a module is unable to open sufficient files to perform its + task, it should fail gracefully, or request additional resources. + Specifically, the quantities manipulated by the <citerefentry> + <refentrytitle>setrlimit</refentrytitle><manvolnum>2</manvolnum> + </citerefentry> family of commands should be taken into + consideration. + </para> + </section> + <section id="mwg-see-programming-sec-who"> + <title>Who´s who?</title> + <para> + Generally, the module may wish to establish the identity of + the user requesting a service. This may not be the same as + the username returned by <function>pam_get_user()</function>. + Indeed, that is only going to be the name of the user under + whose identity the service will be given. This is not + necessarily the user that requests the service. + </para> + <para> + In other words, user X runs a program that is setuid-Y, it + grants the user to have the permissions of Z. A specific example + of this sort of service request is the <command>su</command> + program: user <command>joe</command> executes + <command>su</command> to become the user <command>jane</command>. + In this situation X=<command>joe</command>, Y=<command>root</command> + and Z=<command>jane</command>. Clearly, it is important that + the module does not confuse these different users and grant an + inappropriate level of privilege. + </para> + <para> + The following is the convention to be adhered to when juggling + user-identities. + </para> + <itemizedlist> + <listitem> + <para> + X, the identity of the user invoking the service request. + This is the user identifier; returned by the function + <citerefentry> + <refentrytitle>getuid</refentrytitle><manvolnum>2</manvolnum> + </citerefentry>. + </para> + </listitem> + <listitem> + <para> + Y, the privileged identity of the application used to + grant the requested service. This is the + <emphasis>effective</emphasis> user identifier; + returned by the function <citerefentry> + <refentrytitle>geteuid</refentrytitle><manvolnum>2</manvolnum> + </citerefentry>. + </para> + </listitem> + <listitem> + <para> + Z, the user under whose identity the service will be granted. + This is the username returned by + <function>pam_get_user()</function> and also stored in the + <emphasis remap='B'>Linux-PAM</emphasis> item, + <emphasis>PAM_USER</emphasis>. + </para> + </listitem> + <listitem> + <para> + <emphasis remap='B'>Linux-PAM</emphasis> has a place for + an additional user identity that a module may care to make + use of. This is the <emphasis>PAM_RUSER</emphasis> item. + Generally, network sensitive modules/applications may wish + to set/read this item to establish the identity of the user + requesting a service from a remote location. + </para> + </listitem> + </itemizedlist> + <para> + Note, if a module wishes to modify the identity of either the + <emphasis>uid</emphasis> or <emphasis>euid</emphasis> of the + running process, it should take care to restore the original + values prior to returning control to the + <emphasis remap='B'>Linux-PAM</emphasis> library. + </para> + </section> + <section id="mwg-see-programming-sec-conv"> + <title>Using the conversation function</title> + <para> + Prior to calling the conversation function, the module should + reset the contents of the pointer that will return the applications + response. This is a good idea since the application may fail + to fill the pointer and the module should be in a position to + notice! + </para> + <para> + The module should be prepared for a failure from the + conversation. The generic error would be + <emphasis>PAM_CONV_ERR</emphasis>, but anything other than + <emphasis>PAM_SUCCESS</emphasis> should be treated as + indicating failure. + </para> + </section> + <section id="mwg-see-programming-sec-token"> + <title>Authentication tokens</title> + <para> + To ensure that the authentication tokens are not left lying + around the items, <emphasis>PAM_AUTHTOK</emphasis> and + <emphasis>PAM_OLDAUTHTOK</emphasis>, are not available to + the application: they are defined in + <filename><security/pam_modules.h></filename>. This + is ostensibly for security reasons, but a maliciously + programmed application will always have access to all memory + of the process, so it is only superficially enforced. As a + general rule the module should overwrite authentication tokens + as soon as they are no longer needed. Especially before + <function>free()</function>'ing them. The + <emphasis remap='B'>Linux-PAM</emphasis> library is + required to do this when either of these authentication + token items are (re)set. + </para> + <para> + Not to dwell too little on this concern; should the module + store the authentication tokens either as (automatic) function + variables or using <function>pam_[gs]et_data()</function> the + associated memory should be over-written explicitly before it + is released. In the case of the latter storage mechanism, the + associated <function>cleanup()</function> function should + explicitly overwrite the <varname>*data</varname> before + <function>free()</function>'ing it: for example, + <programlisting> +/* + * An example cleanup() function for releasing memory that was used to + * store a password. + */ + +int cleanup(pam_handle_t *pamh, void *data, int error_status) +{ + char *xx; + + if ((xx = data)) { + while (*xx) + *xx++ = '\0'; + free(data); + } + return PAM_SUCCESS; +} + </programlisting> + </para> + </section> + </section> + <section id="mwg-see-programming-syslog"> + <title>Use of <citerefentry> + <refentrytitle>syslog</refentrytitle><manvolnum>3</manvolnum> + </citerefentry></title> + <para> + Only rarely should error information be directed to the user. + Usually, this is to be limited to + <quote><emphasis>sorry you cannot login now</emphasis></quote> + type messages. Information concerning errors in the configuration + file, <filename>/etc/pam.conf</filename>, or due to some system + failure encountered by the module, should be written to + <citerefentry> + <refentrytitle>syslog</refentrytitle><manvolnum>3</manvolnum> + </citerefentry> with <emphasis>facility-type</emphasis> + <emphasis remap='B'>LOG_AUTHPRIV</emphasis>. + </para> + <para> + With a few exceptions, the level of logging is, at the discretion + of the module developer. Here is the recommended usage of different + logging levels: + </para> + <itemizedlist> + <listitem> + <para> + As a general rule, errors encountered by a module should be + logged at the <emphasis>LOG_ERR</emphasis> level. However, + information regarding an unrecognized argument, passed to a + module from an entry in the <filename>/etc/pam.conf</filename> + file, is <emphasis>required</emphasis> to be logged at the + <emphasis>LOG_ERR</emphasis> level. + </para> + </listitem> + <listitem> + <para> + Debugging information, as activated by the + <command>debug</command> argument to the module in + <filename>/etc/pam.conf</filename>, should be logged + at the <emphasis>LOG_DEBUG</emphasis> level. + </para> + </listitem> + <listitem> + <para> + If a module discovers that its personal configuration + file or some system file it uses for information is + corrupted or somehow unusable, it should indicate this + by logging messages at level, <emphasis>LOG_ALERT</emphasis>. + </para> + </listitem> + <listitem> + <para> + Shortages of system resources, such as a failure to + manipulate a file or <function>malloc()</function> failures + should be logged at level <emphasis>LOG_CRIT</emphasis>. + </para> + </listitem> + <listitem> + <para> + Authentication failures, associated with an incorrectly + typed password should be logged at level, + <emphasis>LOG_NOTICE</emphasis>. + </para> + </listitem> + </itemizedlist> + </section> + <section id="mwg-see-programming-libs"> + <title>Modules that require system libraries</title> + <para> + Writing a module is much like writing an application. You + have to provide the "conventional hooks" for it to work + correctly, like <function>pam_sm_authenticate()</function> + etc., which would correspond to the <function>main()</function> + function in a normal function. + </para> + <para> + Typically, the author may want to link against some standard system + libraries. As when one compiles a normal program, this can be + done for modules too: you simply append the + <parameter>-l</parameter><emphasis>XXX</emphasis> arguments + for the desired libraries when you create the shared module object. + To make sure a module is linked to the + <command>libwhatever.so</command> library + when it is <function>dlopen()</function>ed, try: + <programlisting> +% gcc -shared -o pam_module.so pam_module.o -lwhatever + </programlisting> + </para> + </section> + </chapter> + + <chapter id="mwg-example"> + <title>An example module</title> + <para> + At some point, we may include a fully commented example of a module in + this document. For now, please look at the modules directory of the + <emphasis remap='B'>Linux-PAM</emphasis> sources. + </para> + </chapter> + + <chapter id="mwg-see-also"> + <title>See also</title> + <itemizedlist> + <listitem> + <para> + The Linux-PAM System Administrators' Guide. + </para> + </listitem> + <listitem> + <para> + The Linux-PAM Application Developers' Guide. + </para> + </listitem> + <listitem> + <para> + The V. Samar and R. Schemers (SunSoft), ``UNIFIED LOGIN WITH + PLUGGABLE AUTHENTICATION MODULES'', Open Software Foundation + Request For Comments 86.0, October 1995. + </para> + </listitem> + </itemizedlist> + </chapter> + + <chapter id='mwg-author'> + <title>Author/acknowledgments</title> + <para> + This document was written by Andrew G. Morgan (morgan@kernel.org) + with many contributions from + Chris Adams, Peter Allgeyer, Tim Baverstock, Tim Berger, Craig S. Bell, + Derrick J. Brashear, Ben Buxton, Seth Chaiklin, Oliver Crow, Chris Dent, + Marc Ewing, Cristian Gafton, Emmanuel Galanos, Brad M. Garcia, + Eric Hester, Roger Hu, Eric Jacksch, Michael K. Johnson, David Kinchlea, + Olaf Kirch, Marcin Korzonek, Thorsten Kukuk, Stephen Langasek, + Nicolai Langfeldt, Elliot Lee, Luke Kenneth Casson Leighton, + Al Longyear, Ingo Luetkebohle, Marek Michalkiewicz, Robert Milkowski, + Aleph One, Martin Pool, Sean Reifschneider, Jan Rekorajski, Erik Troan, + Theodore Ts'o, Jeff Uphoff, Myles Uyema, Savochkin Andrey Vladimirovich, + Ronald Wahl, David Wood, John Wilmes, Joseph S. D. Yao + and Alex O. Yuriev. + </para> + <para> + Thanks are also due to Sun Microsystems, especially to Vipin Samar and + Charlie Lai for their advice. At an early stage in the development of + <emphasis remap='B'>Linux-PAM</emphasis>, Sun graciously made the + documentation for their implementation of PAM available. This act + greatly accelerated the development of + <emphasis remap='B'>Linux-PAM</emphasis>. + </para> + </chapter> + + <chapter id='mwg-copyright'> + <title>Copyright information for this document</title> + <programlisting> +Copyright (c) 2006 Thorsten Kukuk <kukuk@thkukuk.de> +Copyright (c) 1996-2002 Andrew G. Morgan <morgan@kernel.org> + </programlisting> + <para> + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are + met: + </para> + <programlisting> +1. Redistributions of source code must retain the above copyright + notice, and the entire permission notice in its entirety, + including the disclaimer of warranties. + +2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + +3. The name of the author may not be used to endorse or promote + products derived from this software without specific prior + written permission. + </programlisting> + <para> + Alternatively, this product may be distributed under the terms of + the GNU General Public License (GPL), in which case the provisions + of the GNU GPL are required instead of the above restrictions. + (This clause is necessary due to a potential bad interaction between + the GNU GPL and the restrictions contained in a BSD-style copyright.) + </para> + <programlisting> +THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED +WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, +INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, +BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS +OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR +TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE +USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + </programlisting> + </chapter> +</book> diff --git a/doc/mwg/Makefile.am b/doc/mwg/Makefile.am new file mode 100644 index 0000000..2bbb2d0 --- /dev/null +++ b/doc/mwg/Makefile.am @@ -0,0 +1,113 @@ +# +# Copyright (c) 2006 Thorsten Kukuk <kukuk@thkukuk.de> +# + +CLEANFILES = Linux-PAM_MWG.fo *~ + +EXTRA_DIST = $(XMLS) + +XMLS = Linux-PAM_MWG.xml $(shell ls $(srcdir)/pam_*.xml) +DEP_XMLS = $(shell ls $(top_srcdir)/doc/man/pam_*.xml) + +if ENABLE_REGENERATE_MAN +MAINTAINERCLEANFILES = Linux-PAM_MWG.txt Linux-PAM_MWG.pdf html/*.html + +all: Linux-PAM_MWG.txt html/Linux-PAM_MWG.html Linux-PAM_MWG.pdf + +Linux-PAM_MWG.pdf: $(XMLS) $(DEP_XMLS) +if ENABLE_GENERATE_PDF + $(XMLLINT) --nonet --xinclude --postvalid --noent --noout $< + $(XSLTPROC) --stringparam generate.toc "book toc" \ + --stringparam section.autolabel 1 \ + --stringparam section.label.includes.component.label 1 \ + --stringparam toc.max.depth 3 --xinclude --nonet \ + http://docbook.sourceforge.net/release/xsl/current/fo/docbook.xsl $< > Linux-PAM_MWG.fo + $(FO2PDF) Linux-PAM_MWG.fo $@ +else + echo "No fo2pdf processor installed, skip PDF generation" +endif + +Linux-PAM_MWG.txt: $(XMLS) $(DEP_XMLS) + $(XMLLINT) --nonet --xinclude --postvalid --noent --noout $< + $(XSLTPROC) --stringparam generate.toc "book toc" \ + --stringparam section.autolabel 1 \ + --stringparam section.label.includes.component.label 1 \ + --stringparam toc.max.depth 3 --xinclude --nonet \ + http://docbook.sourceforge.net/release/xsl/current/html/docbook.xsl $< | $(BROWSER) > $@ + +html/Linux-PAM_MWG.html: $(XMLS) $(DEP_XMLS) + @test -d html || mkdir -p html + $(XMLLINT) --nonet --xinclude --postvalid --noent --noout $< + $(XSLTPROC) --stringparam base.dir html/ \ + --stringparam root.filename Linux-PAM_MWG \ + --stringparam use.id.as.filename 1 \ + --stringparam chunk.first.sections 1 \ + --stringparam section.autolabel 1 \ + --stringparam section.label.includes.component.label 1 \ + --stringparam toc.max.depth 3 --xinclude --nonet \ + --stringparam chunker.output.encoding UTF-8 \ + http://docbook.sourceforge.net/release/xsl/current/html/chunk.xsl $< + +distclean-local: + -rm -rf html Linux-PAM_MWG.txt Linux-PAM_MWG.pdf + +endif + +install-data-local: + $(mkinstalldirs) $(DESTDIR)$(docdir) + $(mkinstalldirs) $(DESTDIR)$(pdfdir) + $(mkinstalldirs) $(DESTDIR)$(htmldir) + if test -f html/Linux-PAM_MWG.html; then \ + $(install_sh_DATA) html/Linux-PAM_MWG.html html/mwg-*.html \ + $(DESTDIR)$(htmldir)/; \ + elif test -f $(srcdir)/html/Linux-PAM_MWG.html; then \ + $(install_sh_DATA) $(srcdir)/html/Linux-PAM_MWG.html \ + $(srcdir)/html/mwg-*.html \ + $(DESTDIR)$(htmldir)/; \ + fi + if test -f Linux-PAM_MWG.txt; then \ + $(install_sh_DATA) Linux-PAM_MWG.txt $(DESTDIR)$(docdir)/; \ + elif test -f $(srcdir)/Linux-PAM_MWG.txt; then \ + $(install_sh_DATA) $(srcdir)/Linux-PAM_MWG.txt \ + $(DESTDIR)$(docdir)/; \ + fi + if test -f Linux-PAM_MWG.pdf; then \ + $(install_sh_DATA) Linux-PAM_MWG.pdf $(DESTDIR)$(pdfdir)/; \ + elif test -f $(srcdir)/Linux-PAM_MWG.pdf; then \ + $(install_sh_DATA) $(srcdir)/Linux-PAM_MWG.pdf \ + $(DESTDIR)$(pdfdir)/; \ + fi + +uninstall-local: + -rm $(DESTDIR)$(htmldir)/Linux-PAM_MWG.html + -rm $(DESTDIR)$(htmldir)/mwg-*.html + -rm $(DESTDIR)$(docdir)/Linux-PAM_MWG.txt + -rm $(DESTDIR)$(pdfdir)/Linux-PAM_MWG.pdf + +releasedocs: all + $(mkinstalldirs) $(top_builddir)/Linux-PAM-$(VERSION)/doc/mwg/html + if test -f html/Linux-PAM_MWG.html; then \ + cp -ap html/Linux-PAM_MWG.html html/mwg-*.html \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/mwg/html/; \ + elif test -f $(srcdir)/html/Linux-PAM_MWG.html; then \ + cp -ap $(srcdir)/html/Linux-PAM_MWG.html \ + $(srcdir)/html/mwg-*.html \ + 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distclean-generic distclean-local + +dvi: dvi-am + +dvi-am: + +html: html-am + +html-am: + +info: info-am + +info-am: + +install-data-am: install-data-local + +install-dvi: install-dvi-am + +install-dvi-am: + +install-exec-am: + +install-html: install-html-am + +install-html-am: + +install-info: install-info-am + +install-info-am: + +install-man: + +install-pdf: install-pdf-am + +install-pdf-am: + +install-ps: install-ps-am + +install-ps-am: + +installcheck-am: + +maintainer-clean: maintainer-clean-am + -rm -f Makefile +maintainer-clean-am: distclean-am maintainer-clean-generic + +mostlyclean: mostlyclean-am + +mostlyclean-am: mostlyclean-generic mostlyclean-libtool + +pdf: pdf-am + +pdf-am: + +ps: ps-am + +ps-am: + +uninstall-am: uninstall-local + +.MAKE: install-am install-strip + +.PHONY: all all-am check check-am clean clean-generic clean-libtool \ + cscopelist-am ctags-am distclean distclean-generic \ + distclean-libtool distclean-local distdir dvi dvi-am html \ + html-am info info-am install install-am install-data \ + install-data-am install-data-local install-dvi install-dvi-am \ + install-exec install-exec-am install-html install-html-am \ + install-info install-info-am install-man install-pdf \ + install-pdf-am install-ps install-ps-am install-strip \ + installcheck installcheck-am installdirs maintainer-clean \ + maintainer-clean-generic mostlyclean mostlyclean-generic \ + mostlyclean-libtool pdf pdf-am ps ps-am tags-am uninstall \ + uninstall-am uninstall-local + + +@ENABLE_REGENERATE_MAN_TRUE@all: Linux-PAM_MWG.txt html/Linux-PAM_MWG.html Linux-PAM_MWG.pdf + +@ENABLE_REGENERATE_MAN_TRUE@Linux-PAM_MWG.pdf: $(XMLS) $(DEP_XMLS) +@ENABLE_GENERATE_PDF_TRUE@@ENABLE_REGENERATE_MAN_TRUE@ $(XMLLINT) --nonet --xinclude --postvalid --noent --noout $< +@ENABLE_GENERATE_PDF_TRUE@@ENABLE_REGENERATE_MAN_TRUE@ $(XSLTPROC) --stringparam generate.toc "book toc" \ +@ENABLE_GENERATE_PDF_TRUE@@ENABLE_REGENERATE_MAN_TRUE@ --stringparam section.autolabel 1 \ +@ENABLE_GENERATE_PDF_TRUE@@ENABLE_REGENERATE_MAN_TRUE@ --stringparam section.label.includes.component.label 1 \ +@ENABLE_GENERATE_PDF_TRUE@@ENABLE_REGENERATE_MAN_TRUE@ --stringparam toc.max.depth 3 --xinclude --nonet \ +@ENABLE_GENERATE_PDF_TRUE@@ENABLE_REGENERATE_MAN_TRUE@ http://docbook.sourceforge.net/release/xsl/current/fo/docbook.xsl $< > Linux-PAM_MWG.fo +@ENABLE_GENERATE_PDF_TRUE@@ENABLE_REGENERATE_MAN_TRUE@ $(FO2PDF) Linux-PAM_MWG.fo $@ +@ENABLE_GENERATE_PDF_FALSE@@ENABLE_REGENERATE_MAN_TRUE@ echo "No fo2pdf processor installed, skip PDF generation" + +@ENABLE_REGENERATE_MAN_TRUE@Linux-PAM_MWG.txt: $(XMLS) $(DEP_XMLS) +@ENABLE_REGENERATE_MAN_TRUE@ $(XMLLINT) --nonet --xinclude --postvalid --noent --noout $< +@ENABLE_REGENERATE_MAN_TRUE@ $(XSLTPROC) --stringparam generate.toc "book toc" \ +@ENABLE_REGENERATE_MAN_TRUE@ --stringparam section.autolabel 1 \ +@ENABLE_REGENERATE_MAN_TRUE@ --stringparam section.label.includes.component.label 1 \ +@ENABLE_REGENERATE_MAN_TRUE@ --stringparam toc.max.depth 3 --xinclude --nonet \ +@ENABLE_REGENERATE_MAN_TRUE@ http://docbook.sourceforge.net/release/xsl/current/html/docbook.xsl $< | $(BROWSER) > $@ + +@ENABLE_REGENERATE_MAN_TRUE@html/Linux-PAM_MWG.html: $(XMLS) $(DEP_XMLS) +@ENABLE_REGENERATE_MAN_TRUE@ @test -d html || mkdir -p html +@ENABLE_REGENERATE_MAN_TRUE@ $(XMLLINT) --nonet --xinclude --postvalid --noent --noout $< +@ENABLE_REGENERATE_MAN_TRUE@ $(XSLTPROC) --stringparam base.dir html/ \ +@ENABLE_REGENERATE_MAN_TRUE@ --stringparam root.filename Linux-PAM_MWG \ +@ENABLE_REGENERATE_MAN_TRUE@ --stringparam use.id.as.filename 1 \ +@ENABLE_REGENERATE_MAN_TRUE@ --stringparam chunk.first.sections 1 \ +@ENABLE_REGENERATE_MAN_TRUE@ --stringparam section.autolabel 1 \ +@ENABLE_REGENERATE_MAN_TRUE@ --stringparam section.label.includes.component.label 1 \ +@ENABLE_REGENERATE_MAN_TRUE@ --stringparam toc.max.depth 3 --xinclude --nonet \ +@ENABLE_REGENERATE_MAN_TRUE@ --stringparam chunker.output.encoding UTF-8 \ +@ENABLE_REGENERATE_MAN_TRUE@ http://docbook.sourceforge.net/release/xsl/current/html/chunk.xsl $< + +@ENABLE_REGENERATE_MAN_TRUE@distclean-local: +@ENABLE_REGENERATE_MAN_TRUE@ -rm -rf html Linux-PAM_MWG.txt Linux-PAM_MWG.pdf + +install-data-local: + $(mkinstalldirs) $(DESTDIR)$(docdir) + $(mkinstalldirs) $(DESTDIR)$(pdfdir) + $(mkinstalldirs) $(DESTDIR)$(htmldir) + if test -f html/Linux-PAM_MWG.html; then \ + $(install_sh_DATA) html/Linux-PAM_MWG.html html/mwg-*.html \ + $(DESTDIR)$(htmldir)/; \ + elif test -f $(srcdir)/html/Linux-PAM_MWG.html; then \ + $(install_sh_DATA) $(srcdir)/html/Linux-PAM_MWG.html \ + $(srcdir)/html/mwg-*.html \ + $(DESTDIR)$(htmldir)/; \ + fi + if test -f Linux-PAM_MWG.txt; then \ + $(install_sh_DATA) Linux-PAM_MWG.txt $(DESTDIR)$(docdir)/; \ + elif test -f $(srcdir)/Linux-PAM_MWG.txt; then \ + $(install_sh_DATA) $(srcdir)/Linux-PAM_MWG.txt \ + $(DESTDIR)$(docdir)/; \ + fi + if test -f Linux-PAM_MWG.pdf; then \ + $(install_sh_DATA) Linux-PAM_MWG.pdf $(DESTDIR)$(pdfdir)/; \ + elif test -f $(srcdir)/Linux-PAM_MWG.pdf; then \ + $(install_sh_DATA) $(srcdir)/Linux-PAM_MWG.pdf \ + $(DESTDIR)$(pdfdir)/; \ + fi + +uninstall-local: + -rm $(DESTDIR)$(htmldir)/Linux-PAM_MWG.html + -rm $(DESTDIR)$(htmldir)/mwg-*.html + -rm $(DESTDIR)$(docdir)/Linux-PAM_MWG.txt + -rm $(DESTDIR)$(pdfdir)/Linux-PAM_MWG.pdf + +releasedocs: all + $(mkinstalldirs) $(top_builddir)/Linux-PAM-$(VERSION)/doc/mwg/html + if test -f html/Linux-PAM_MWG.html; then \ + cp -ap html/Linux-PAM_MWG.html html/mwg-*.html \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/mwg/html/; \ + elif test -f $(srcdir)/html/Linux-PAM_MWG.html; then \ + cp -ap $(srcdir)/html/Linux-PAM_MWG.html \ + $(srcdir)/html/mwg-*.html \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/mwg/html/; \ + else exit 1; \ + fi + if test -f Linux-PAM_MWG.txt; then \ + cp -p Linux-PAM_MWG.txt \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/mwg/; \ + elif test -f $(srcdir)/Linux-PAM_MWG.txt; then \ + cp -p $(srcdir)/Linux-PAM_MWG.txt \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/mwg/; \ + else exit 1; \ + fi + if test -f Linux-PAM_MWG.pdf; then \ + cp -p Linux-PAM_MWG.pdf \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/mwg/; \ + elif test -f $(srcdir)/Linux-PAM_MWG.pdf; then \ + cp -p $(srcdir)/Linux-PAM_MWG.pdf \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/mwg/; \ + else exit 1; \ + fi + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/doc/mwg/pam_conv.xml b/doc/mwg/pam_conv.xml new file mode 100644 index 0000000..a2b470a --- /dev/null +++ b/doc/mwg/pam_conv.xml @@ -0,0 +1,35 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='mwg-pam_conv'> + <title>The conversation function</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_conv.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_conv-synopsis"]/*)'/> + </funcsynopsis> + <programlisting> +struct pam_message { + int msg_style; + const char *msg; +}; + +struct pam_response { + char *resp; + int resp_retcode; +}; + +struct pam_conv { + int (*conv)(int num_msg, const struct pam_message **msg, + struct pam_response **resp, void *appdata_ptr); + void *appdata_ptr; +}; + </programlisting> + <section id='mwg-pam_conv-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_conv.3.xml" xpointer='xpointer(//refsect1[@id = "pam_conv-description"]/*)'/> + </section> + <section id='mwg-pam_conv-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_conv.3.xml" xpointer='xpointer(//refsect1[@id = "pam_conv-return_values"]/*)'/> + </section> +</section> diff --git a/doc/mwg/pam_fail_delay.xml b/doc/mwg/pam_fail_delay.xml new file mode 100644 index 0000000..589e114 --- /dev/null +++ b/doc/mwg/pam_fail_delay.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='adg-pam_fail_delay'> + <title>Request a delay on failure</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_fail_delay.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_fail_delay-synopsis"]/*)'/> + </funcsynopsis> + <section id='adg-pam_fail_delay-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_fail_delay.3.xml" xpointer='xpointer(//refsect1[@id = "pam_fail_delay-description"]/*)'/> + </section> + <section id='adg-pam_fail_delay-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_fail_delay.3.xml" xpointer='xpointer(//refsect1[@id = "pam_fail_delay-return_values"]/*)'/> + </section> +</section> diff --git a/doc/mwg/pam_get_data.xml b/doc/mwg/pam_get_data.xml new file mode 100644 index 0000000..b1afdb3 --- /dev/null +++ b/doc/mwg/pam_get_data.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='mwg-pam_get_data'> + <title>Get module internal data</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_get_data.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_get_data-synopsis"]/*)'/> + </funcsynopsis> + <section id='mwg-pam_get_data-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_get_data.3.xml" xpointer='xpointer(//refsect1[@id = "pam_get_data-description"]/*)'/> + </section> + <section id='mwg-pam_get_data-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_get_data.3.xml" xpointer='xpointer(//refsect1[@id = "pam_get_data-return_values"]/*)'/> + </section> +</section> diff --git a/doc/mwg/pam_get_item.xml b/doc/mwg/pam_get_item.xml new file mode 100644 index 0000000..370a10a --- /dev/null +++ b/doc/mwg/pam_get_item.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='mwg-pam_get_item'> + <title>Getting PAM items</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_get_item.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_get_item-synopsis"]/*)'/> + </funcsynopsis> + <section id='mwg-pam_get_item-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_get_item.3.xml" xpointer='xpointer(//refsect1[@id = "pam_get_item-description"]/*)'/> + </section> + <section id='mwg-pam_get_item-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_get_item.3.xml" xpointer='xpointer(//refsect1[@id = "pam_get_item-return_values"]/*)'/> + </section> +</section> diff --git a/doc/mwg/pam_get_user.xml b/doc/mwg/pam_get_user.xml new file mode 100644 index 0000000..1cb7fdf --- /dev/null +++ b/doc/mwg/pam_get_user.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='mwg-pam_get_user'> + <title>Get user name</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_get_user.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_get_user-synopsis"]/*)'/> + </funcsynopsis> + <section id='mwg-pam_get_user-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_get_user.3.xml" xpointer='xpointer(//refsect1[@id = "pam_get_user-description"]/*)'/> + </section> + <section id='mwg-pam_get_user-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_get_user.3.xml" xpointer='xpointer(//refsect1[@id = "pam_get_user-return_values"]/*)'/> + </section> +</section> diff --git a/doc/mwg/pam_getenv.xml b/doc/mwg/pam_getenv.xml new file mode 100644 index 0000000..61d69c3 --- /dev/null +++ b/doc/mwg/pam_getenv.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='adg-pam_getenv'> + <title>Get a PAM environment variable</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_getenv.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_getenv-synopsis"]/*)'/> + </funcsynopsis> + <section id='adg-pam_getenv-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_getenv.3.xml" xpointer='xpointer(//refsect1[@id = "pam_getenv-description"]/*)'/> + </section> + <section id='adg-pam_getenv-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_getenv.3.xml" xpointer='xpointer(//refsect1[@id = "pam_getenv-return_values"]/*)'/> + </section> +</section> diff --git a/doc/mwg/pam_getenvlist.xml b/doc/mwg/pam_getenvlist.xml new file mode 100644 index 0000000..d3c2fcd --- /dev/null +++ b/doc/mwg/pam_getenvlist.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='adg-pam_getenvlist'> + <title>Getting the PAM environment</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_getenvlist.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_getenvlist-synopsis"]/*)'/> + </funcsynopsis> + <section id='adg-pam_getenvlist-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_getenvlist.3.xml" xpointer='xpointer(//refsect1[@id = "pam_getenvlist-description"]/*)'/> + </section> + <section id='adg-pam_getenvlist-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_getenvlist.3.xml" xpointer='xpointer(//refsect1[@id = "pam_getenvlist-return_values"]/*)'/> + </section> +</section> diff --git a/doc/mwg/pam_putenv.xml b/doc/mwg/pam_putenv.xml new file mode 100644 index 0000000..e55f1a4 --- /dev/null +++ b/doc/mwg/pam_putenv.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='adg-pam_putenv'> + <title>Set or change PAM environment variable</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_putenv.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_putenv-synopsis"]/*)'/> + </funcsynopsis> + <section id='adg-pam_putenv-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_putenv.3.xml" xpointer='xpointer(//refsect1[@id = "pam_putenv-description"]/*)'/> + </section> + <section id='adg-pam_putenv-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_putenv.3.xml" xpointer='xpointer(//refsect1[@id = "pam_putenv-return_values"]/*)'/> + </section> +</section> diff --git a/doc/mwg/pam_set_data.xml b/doc/mwg/pam_set_data.xml new file mode 100644 index 0000000..18b2711 --- /dev/null +++ b/doc/mwg/pam_set_data.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='mwg-pam_set_data'> + <title>Set module internal data</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_set_data.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_set_data-synopsis"]/*)'/> + </funcsynopsis> + <section id='mwg-pam_set_data-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_set_data.3.xml" xpointer='xpointer(//refsect1[@id = "pam_set_data-description"]/*)'/> + </section> + <section id='mwg-pam_set_data-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_set_data.3.xml" xpointer='xpointer(//refsect1[@id = "pam_set_data-return_values"]/*)'/> + </section> +</section> diff --git a/doc/mwg/pam_set_item.xml b/doc/mwg/pam_set_item.xml new file mode 100644 index 0000000..7d19925 --- /dev/null +++ b/doc/mwg/pam_set_item.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='mwg-pam_set_item'> + <title>Setting PAM items</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_set_item.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_set_item-synopsis"]/*)'/> + </funcsynopsis> + <section id='mwg-pam_set_item-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_set_item.3.xml" xpointer='xpointer(//refsect1[@id = "pam_set_item-description"]/*)'/> + </section> + <section id='mwg-pam_set_item-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_set_item.3.xml" xpointer='xpointer(//refsect1[@id = "pam_set_item-return_values"]/*)'/> + </section> +</section> diff --git a/doc/mwg/pam_sm_acct_mgmt.xml b/doc/mwg/pam_sm_acct_mgmt.xml new file mode 100644 index 0000000..10b3c9e --- /dev/null +++ b/doc/mwg/pam_sm_acct_mgmt.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='mwg-pam_sm_acct_mgmt'> + <title>Service function for account management</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_sm_acct_mgmt.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_sm_acct_mgmt-synopsis"]/*)'/> + </funcsynopsis> + <section id='mwg-pam_sm_acct_mgmt-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_sm_acct_mgmt.3.xml" xpointer='xpointer(//refsect1[@id = "pam_sm_acct_mgmt-description"]/*)'/> + </section> + <section id='mwg-pam_sm_acct_mgmt-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_sm_acct_mgmt.3.xml" xpointer='xpointer(//refsect1[@id = "pam_sm_acct_mgmt-return_values"]/*)'/> + </section> +</section> diff --git a/doc/mwg/pam_sm_authenticate.xml b/doc/mwg/pam_sm_authenticate.xml new file mode 100644 index 0000000..54c79af --- /dev/null +++ b/doc/mwg/pam_sm_authenticate.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='mwg-pam_sm_authenticate'> + <title>Service function for user authentication</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_sm_authenticate.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_sm_authenticate-synopsis"]/*)'/> + </funcsynopsis> + <section id='mwg-pam_sm_authenticate-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_sm_authenticate.3.xml" xpointer='xpointer(//refsect1[@id = "pam_sm_authenticate-description"]/*)'/> + </section> + <section id='mwg-pam_sm_authenticate-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_sm_authenticate.3.xml" xpointer='xpointer(//refsect1[@id = "pam_sm_authenticate-return_values"]/*)'/> + </section> +</section> diff --git a/doc/mwg/pam_sm_chauthtok.xml b/doc/mwg/pam_sm_chauthtok.xml new file mode 100644 index 0000000..a136431 --- /dev/null +++ b/doc/mwg/pam_sm_chauthtok.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='mwg-pam_sm_chauthtok'> + <title>Service function to alter authentication token</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_sm_chauthtok.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_sm_chauthtok-synopsis"]/*)'/> + </funcsynopsis> + <section id='mwg-pam_sm_chauthtok-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_sm_chauthtok.3.xml" xpointer='xpointer(//refsect1[@id = "pam_sm_chauthtok-description"]/*)'/> + </section> + <section id='mwg-pam_sm_chauthtok-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_sm_chauthtok.3.xml" xpointer='xpointer(//refsect1[@id = "pam_sm_chauthtok-return_values"]/*)'/> + </section> +</section> diff --git a/doc/mwg/pam_sm_close_session.xml b/doc/mwg/pam_sm_close_session.xml new file mode 100644 index 0000000..9346c50 --- /dev/null +++ b/doc/mwg/pam_sm_close_session.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-close.org/docbook/xml/4.4/docbookx.dtd"> +<section id='mwg-pam_sm_close_session'> + <title>Service function to terminate session management</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_sm_close_session.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_sm_close_session-synopsis"]/*)'/> + </funcsynopsis> + <section id='mwg-pam_sm_close_session-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_sm_close_session.3.xml" xpointer='xpointer(//refsect1[@id = "pam_sm_close_session-description"]/*)'/> + </section> + <section id='mwg-pam_sm_close_session-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_sm_close_session.3.xml" xpointer='xpointer(//refsect1[@id = "pam_sm_close_session-return_values"]/*)'/> + </section> +</section> diff --git a/doc/mwg/pam_sm_open_session.xml b/doc/mwg/pam_sm_open_session.xml new file mode 100644 index 0000000..b8e3fa9 --- /dev/null +++ b/doc/mwg/pam_sm_open_session.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='mwg-pam_sm_open_session'> + <title>Service function to start session management</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_sm_open_session.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_sm_open_session-synopsis"]/*)'/> + </funcsynopsis> + <section id='mwg-pam_sm_open_session-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_sm_open_session.3.xml" xpointer='xpointer(//refsect1[@id = "pam_sm_open_session-description"]/*)'/> + </section> + <section id='mwg-pam_sm_open_session-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_sm_open_session.3.xml" xpointer='xpointer(//refsect1[@id = "pam_sm_open_session-return_values"]/*)'/> + </section> +</section> diff --git a/doc/mwg/pam_sm_setcred.xml b/doc/mwg/pam_sm_setcred.xml new file mode 100644 index 0000000..eee8e1d --- /dev/null +++ b/doc/mwg/pam_sm_setcred.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='mwg-pam_sm_setcred'> + <title>Service function to alter credentials</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_sm_setcred.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_sm_setcred-synopsis"]/*)'/> + </funcsynopsis> + <section id='mwg-pam_sm_setcred-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_sm_setcred.3.xml" xpointer='xpointer(//refsect1[@id = "pam_sm_setcred-description"]/*)'/> + </section> + <section id='mwg-pam_sm_setcred-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_sm_setcred.3.xml" xpointer='xpointer(//refsect1[@id = "pam_sm_setcred-return_values"]/*)'/> + </section> +</section> diff --git a/doc/mwg/pam_strerror.xml b/doc/mwg/pam_strerror.xml new file mode 100644 index 0000000..35b08a2 --- /dev/null +++ b/doc/mwg/pam_strerror.xml @@ -0,0 +1,18 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='adg-pam_strerror'> + <title>Strings describing PAM error codes</title> + <funcsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_strerror.3.xml" xpointer='xpointer(//funcsynopsis[@id = "pam_strerror-synopsis"]/*)'/> + </funcsynopsis> + <section id='adg-pam_strerror-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_strerror.3.xml" xpointer='xpointer(//refsect1[@id = "pam_strerror-description"]/*)'/> + </section> + <section id='adg-pam_strerror-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam_strerror.3.xml" xpointer='xpointer(//refsect1[@id = "pam_strerror-return_values"]/*)'/> + </section> +</section> diff --git a/doc/sag/Linux-PAM_SAG.xml b/doc/sag/Linux-PAM_SAG.xml new file mode 100644 index 0000000..6a324aa --- /dev/null +++ b/doc/sag/Linux-PAM_SAG.xml @@ -0,0 +1,576 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<book id="sag"> + <bookinfo> + <title>The Linux-PAM System Administrators' Guide</title> + <authorgroup> + <author> + <firstname>Andrew G.</firstname> + <surname>Morgan</surname> + <email>morgan@kernel.org</email> + </author> + <author> + <firstname>Thorsten</firstname> + <surname>Kukuk</surname> + <email>kukuk@thkukuk.de</email> + </author> + </authorgroup> + <releaseinfo>Version 1.1.2, 31. August 2010</releaseinfo> + <abstract> + <para> + This manual documents what a system-administrator needs to know about + the <emphasis remap='B'>Linux-PAM</emphasis> library. It covers the + correct syntax of the PAM configuration file and discusses strategies + for maintaining a secure system. + </para> + </abstract> + </bookinfo> + + <chapter id='sag-introduction'> + <title>Introduction</title> + <para> + <emphasis remap='B'>Linux-PAM</emphasis> (Pluggable Authentication + Modules for Linux) is a suite of shared libraries that enable the + local system administrator to choose how applications authenticate users. + </para> + <para> + In other words, without (rewriting and) recompiling a PAM-aware + application, it is possible to switch between the authentication + mechanism(s) it uses. Indeed, one may entirely upgrade the local + authentication system without touching the applications themselves. + </para> + <para> + Historically an application that has required a given user to be + authenticated, has had to be compiled to use a specific authentication + mechanism. For example, in the case of traditional UN*X systems, the + identity of the user is verified by the user entering a correct + password. This password, after being prefixed by a two character + ``salt'', is encrypted (with crypt(3)). The user is then authenticated + if this encrypted password is identical to the second field of the + user's entry in the system password database (the + <filename>/etc/passwd</filename> file). On such systems, most if + not all forms of privileges are granted based on this single + authentication scheme. Privilege comes in the form of a personal + user-identifier (UID) and membership of various groups. Services and + applications are available based on the personal and group identity + of the user. Traditionally, group membership has been assigned based + on entries in the <filename>/etc/group</filename> file. + </para> + <para> + It is the purpose of the <emphasis remap='B'>Linux-PAM</emphasis> + project to separate the development of privilege granting software + from the development of secure and appropriate authentication schemes. + This is accomplished by providing a library of functions that an + application may use to request that a user be authenticated. This + PAM library is configured locally with a system file, + <filename>/etc/pam.conf</filename> (or a series of configuration + files located in <filename>/etc/pam.d/</filename>) to authenticate a + user request via the locally available authentication modules. The + modules themselves will usually be located in the directory + <filename>/lib/security</filename> or + <filename>/lib64/security</filename> and take the form of dynamically + loadable object files (see <citerefentry> + <refentrytitle>dlopen</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>). + </para> + </chapter> + + <chapter id="sag-text-conventions"> + <title>Some comments on the text</title> + <para> + Before proceeding to read the rest of this document, it should be + noted that the text assumes that certain files are placed in certain + directories. Where they have been specified, the conventions we adopt + here for locating these files are those of the relevant RFC (RFC-86.0, + see <link linkend="sag-see-also">bibliography"</link>). If you are + using a distribution of Linux (or some other operating system) that + supports PAM but chooses to distribute these files in a different way + you should be careful when copying examples directly from the text. + </para> + <para> + As an example of the above, where it is explicit, the text assumes + that PAM loadable object files (the + <emphasis remap='B'>modules</emphasis>) are to be located in + the following directory: <filename>/lib/security/</filename> or + <filename>/lib64/security</filename> depending on the architecture. + This is generally the location that seems to be compatible with the + Filesystem Hierarchy Standard (FHS). On Solaris, which has its own + licensed version of PAM, and some other implementations of UN*X, + these files can be found in <filename>/usr/lib/security</filename>. + Please be careful to perform the necessary transcription when using + the examples from the text. + </para> + </chapter> + + <chapter id="sag-overview"> + <title>Overview</title> + <para> + For the uninitiated, we begin by considering an example. We take an + application that grants some service to users; + <command>login</command> is one such program. + <command>Login</command> does two things, it first establishes that + the requesting user is whom they claim to be and second provides + them with the requested service: in the case of + <command>login</command> the service is a command shell + (bash, tcsh, zsh, etc.) running with the identity of the user. + </para> + <para> + Traditionally, the former step is achieved by the + <command>login</command> application prompting the user for a + password and then verifying that it agrees with that located on + the system; hence verifying that as far as the system is concerned + the user is who they claim to be. This is the task that is delegated + to <emphasis remap='B'>Linux-PAM</emphasis>. + </para> + <para> + From the perspective of the application programmer (in this case + the person that wrote the <command>login</command> application), + <emphasis remap='B'>Linux-PAM</emphasis> takes care of this + authentication task -- verifying the identity of the user. + </para> + <para> + The flexibility of <emphasis remap='B'>Linux-PAM</emphasis> is + that <emphasis>you</emphasis>, the system administrator, have + the freedom to stipulate which authentication scheme is to be + used. You have the freedom to set the scheme for any/all + PAM-aware applications on your Linux system. That is, you can + authenticate from anything as naive as + <emphasis>simple trust</emphasis> (<command>pam_permit</command>) + to something as paranoid as a combination of a retinal scan, a + voice print and a one-time password! + </para> + <para> + To illustrate the flexibility you face, consider the following + situation: a system administrator (parent) wishes to improve the + mathematical ability of her users (children). She can configure + their favorite ``Shoot 'em up game'' (PAM-aware of course) to + authenticate them with a request for the product of a couple of + random numbers less than 12. It is clear that if the game is any + good they will soon learn their + <emphasis>multiplication tables</emphasis>. As they mature, the + authentication can be upgraded to include (long) division! + </para> + <para> + <emphasis remap='B'>Linux-PAM</emphasis> deals with four + separate types of (management) task. These are: + <emphasis>authentication management</emphasis>; + <emphasis>account management</emphasis>; + <emphasis>session management</emphasis>; and + <emphasis>password management</emphasis>. + The association of the preferred management scheme with the behavior + of an application is made with entries in the relevant + <emphasis remap='B'>Linux-PAM</emphasis> configuration file. + The management functions are performed by <emphasis>modules</emphasis> + specified in the configuration file. The syntax for this + file is discussed in the section + <link linkend="sag-configuration">below</link>. + </para> + <para> + Here is a figure that describes the overall organization of + <emphasis remap='B'>Linux-PAM</emphasis>: + <programlisting> + +----------------+ + | application: X | + +----------------+ / +----------+ +================+ + | authentication-[---->--\--] Linux- |--<--| PAM config file| + | + [----<--/--] PAM | |================| + |[conversation()][--+ \ | | | X auth .. a.so | + +----------------+ | / +-n--n-----+ | X auth .. b.so | + | | | __| | | _____/ + | service user | A | | |____,-----' + | | | V A + +----------------+ +------|-----|---------+ -----+------+ + +---u-----u----+ | | | + | auth.... |--[ a ]--[ b ]--[ c ] + +--------------+ + | acct.... |--[ b ]--[ d ] + +--------------+ + | password |--[ b ]--[ c ] + +--------------+ + | session |--[ e ]--[ c ] + +--------------+ + </programlisting> + By way of explanation, the left of the figure represents the + application; application X. Such an application interfaces with the + <emphasis remap='B'>Linux-PAM</emphasis> library and knows none of + the specifics of its configured authentication method. The + <emphasis remap='B'>Linux-PAM</emphasis> library (in the center) + consults the contents of the PAM configuration file and loads the + modules that are appropriate for application-X. These modules fall + into one of four management groups (lower-center) and are stacked in + the order they appear in the configuration file. These modules, when + called by <emphasis remap='B'>Linux-PAM</emphasis>, perform the + various authentication tasks for the application. Textual information, + required from/or offered to the user, can be exchanged through the + use of the application-supplied <emphasis>conversation</emphasis> + function. + </para> + <para> + If a program is going to use PAM, then it has to have PAM + functions explicitly coded into the program. If you have + access to the source code you can add the appropriate PAM + functions. If you do not have access to the source code, and + the binary does not have the PAM functions included, then + it is not possible to use PAM. + </para> + </chapter> + + <chapter id="sag-configuration"> + <title>The Linux-PAM configuration file</title> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam.conf-desc.xml" + xpointer='xpointer(//section[@id = "pam.conf-desc"]/*)' /> + <section id='sag-configuration-file'> + <title>Configuration file syntax</title> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam.conf-syntax.xml" + xpointer='xpointer(//section[@id = "pam.conf-syntax"]/*)' /> + </section> + <section id='sag-configuration-directory'> + <title>Directory based configuration</title> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../man/pam.conf-dir.xml" + xpointer='xpointer(//section[@id = "pam.conf-dir"]/*)' /> + </section> + <section id='sag-configuration-example'> + <title>Example configuration file entries</title> + <para> + In this section, we give some examples of entries that can + be present in the <emphasis remap='B'>Linux-PAM</emphasis> + configuration file. As a first attempt at configuring your + system you could do worse than to implement these. + </para> + <para> + If a system is to be considered secure, it had better have a + reasonably secure '<emphasis remap='B'>other</emphasis> entry. + The following is a paranoid setting (which is not a bad place + to start!): + </para> + <programlisting> +# +# default; deny access +# +other auth required pam_deny.so +other account required pam_deny.so +other password required pam_deny.so +other session required pam_deny.so + </programlisting> + <para> + Whilst fundamentally a secure default, this is not very + sympathetic to a misconfigured system. For example, such + a system is vulnerable to locking everyone out should the + rest of the file become badly written. + </para> + <para> + The module <command>pam_deny</command> (documented in a + <link linkend="sag-pam_deny">later section</link>) is not very + sophisticated. For example, it logs no information when it + is invoked so unless the users of a system contact the + administrator when failing to execute a service application, + the administrator may go for a long while in ignorance of the + fact that his system is misconfigured. + </para> + <para> + The addition of the following line before those in the above + example would provide a suitable warning to the administrator. + </para> + <programlisting> +# +# default; wake up! This application is not configured +# +other auth required pam_warn.so +other password required pam_warn.so + </programlisting> + <para> + Having two '<command>other auth</command>' lines is an + example of stacking. + </para> + <para> + On a system that uses the <filename>/etc/pam.d/</filename> + configuration, the corresponding default setup would be + achieved with the following file: + </para> + <programlisting> +# +# default configuration: /etc/pam.d/other +# +auth required pam_warn.so +auth required pam_deny.so +account required pam_deny.so +password required pam_warn.so +password required pam_deny.so +session required pam_deny.so + </programlisting> + <para> + This is the only explicit example we give for an + <filename>/etc/pam.d/</filename> file. In general, it + should be clear how to transpose the remaining examples + to this configuration scheme. + </para> + <para> + On a less sensitive computer, one on which the system + administrator wishes to remain ignorant of much of the + power of <emphasis remap='B'>Linux-PAM</emphasis>, the + following selection of lines (in + <filename>/etc/pam.d/other</filename>) is likely to + mimic the historically familiar Linux setup. + </para> + <programlisting> +# +# default; standard UN*X access +# +auth required pam_unix.so +account required pam_unix.so +password required pam_unix.so +session required pam_unix.so + </programlisting> + <para> + In general this will provide a starting place for most applications. + </para> + </section> + </chapter> + + <chapter id='sag-security-issues'> + <title>Security issues</title> + <section id='sag-security-issues-wrong'> + <title>If something goes wrong</title> + <para> + <emphasis remap='B'>Linux-PAM</emphasis> has the potential + to seriously change the security of your system. You can + choose to have no security or absolute security (no access + permitted). In general, <emphasis remap='B'>Linux-PAM</emphasis> + errs towards the latter. Any number of configuration errors + can disable access to your system partially, or completely. + </para> + <para> + The most dramatic problem that is likely to be encountered when + configuring <emphasis remap='B'>Linux-PAM</emphasis> is that of + <emphasis>deleting</emphasis> the configuration file(s): + <filename>/etc/pam.d/*</filename> and/or + <filename>/etc/pam.conf</filename>. This will lock you out of + your own system! + </para> + <para> + To recover, your best bet is to restore the system from a + backup or boot the system into a rescue system and correct + things from there. + </para> + </section> + <section id='sag-security-issues-other'> + <title>Avoid having a weak `other' configuration</title> + <para> + It is not a good thing to have a weak default + (<emphasis remap='B'>other</emphasis>) entry. + This service is the default configuration for all PAM aware + applications and if it is weak, your system is likely to be + vulnerable to attack. + </para> + <para> + Here is a sample "other" configuration file. The + <command>pam_deny</command> module will deny access and the + <command>pam_warn</command> module will send a syslog message + to <emphasis>auth.notice</emphasis>: + </para> + <programlisting> +# +# The PAM configuration file for the `other' service +# +auth required pam_deny.so +auth required pam_warn.so +account required pam_deny.so +account required pam_warn.so +password required pam_deny.so +password required pam_warn.so +session required pam_deny.so +session required pam_warn.so + </programlisting> + </section> + </chapter> + + <chapter id='sag-module-reference'> + <title>A reference guide for available modules</title> + <para> + Here, we collect together the descriptions of the various modules + coming with Linux-PAM. + </para> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_access.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_cracklib.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_debug.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_deny.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_echo.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_env.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_exec.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_faildelay.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_filter.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_ftp.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_group.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_issue.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_keyinit.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_lastlog.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_limits.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_listfile.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_localuser.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_loginuid.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_mail.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_mkhomedir.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_motd.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_namespace.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_nologin.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_permit.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_pwhistory.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_rhosts.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_rootok.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_securetty.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_selinux.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_shells.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_succeed_if.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_tally.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_tally2.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_time.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_timestamp.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_umask.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_unix.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_userdb.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_warn.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_wheel.xml"/> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_xauth.xml"/> + </chapter> + + <chapter id="sag-see-also"> + <title>See also</title> + <itemizedlist> + <listitem> + <para> + The Linux-PAM Application Writers' Guide. + </para> + </listitem> + <listitem> + <para> + The Linux-PAM Module Writers' Guide. + </para> + </listitem> + <listitem> + <para> + The V. Samar and R. Schemers (SunSoft), ``UNIFIED LOGIN WITH + PLUGGABLE AUTHENTICATION MODULES'', Open Software Foundation + Request For Comments 86.0, October 1995. + </para> + </listitem> + </itemizedlist> + </chapter> + + <chapter id='sag-author'> + <title>Author/acknowledgments</title> + <para> + This document was written by Andrew G. Morgan (morgan@kernel.org) + with many contributions from + Chris Adams, Peter Allgeyer, Tim Baverstock, Tim Berger, + Craig S. Bell, Derrick J. Brashear, Ben Buxton, Seth Chaiklin, + Oliver Crow, Chris Dent, Marc Ewing, Cristian Gafton, + Emmanuel Galanos, Brad M. Garcia, Eric Hester, Michel D'Hooge, + Roger Hu, Eric Jacksch, Michael K. Johnson, David Kinchlea, + Olaf Kirch, Marcin Korzonek, Thorsten Kukuk, Stephen Langasek, + Nicolai Langfeldt, Elliot Lee, Luke Kenneth Casson Leighton, + Al Longyear, Ingo Luetkebohle, Marek Michalkiewicz, + Robert Milkowski, Aleph One, Martin Pool, Sean Reifschneider, + Jan Rekorajski, Erik Troan, Theodore Ts'o, Jeff Uphoff, Myles Uyema, + Savochkin Andrey Vladimirovich, Ronald Wahl, David Wood, John Wilmes, + Joseph S. D. Yao and Alex O. Yuriev. + </para> + <para> + Thanks are also due to Sun Microsystems, especially to Vipin Samar and + Charlie Lai for their advice. At an early stage in the development of + <emphasis remap='B'>Linux-PAM</emphasis>, Sun graciously made the + documentation for their implementation of PAM available. This act + greatly accelerated the development of + <emphasis remap='B'>Linux-PAM</emphasis>. + </para> + </chapter> + + <chapter id='sag-copyright'> + <title>Copyright information for this document</title> + <programlisting> +Copyright (c) 2006 Thorsten Kukuk <kukuk@thkukuk.de> +Copyright (c) 1996-2002 Andrew G. Morgan <morgan@kernel.org> + </programlisting> + <para> + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are + met: + </para> + <programlisting> +1. Redistributions of source code must retain the above copyright + notice, and the entire permission notice in its entirety, + including the disclaimer of warranties. + +2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + +3. The name of the author may not be used to endorse or promote + products derived from this software without specific prior + written permission. + </programlisting> + <para> + Alternatively, this product may be distributed under the terms of + the GNU General Public License (GPL), in which case the provisions + of the GNU GPL are required instead of the above restrictions. + (This clause is necessary due to a potential bad interaction between + the GNU GPL and the restrictions contained in a BSD-style copyright.) + </para> + <programlisting> +THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED +WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, +INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, +BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS +OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR +TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE +USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + </programlisting> + </chapter> +</book> diff --git a/doc/sag/Makefile.am b/doc/sag/Makefile.am new file mode 100644 index 0000000..31816aa --- /dev/null +++ b/doc/sag/Makefile.am @@ -0,0 +1,113 @@ +# +# Copyright (c) 2006 Thorsten Kukuk <kukuk@thkukuk.de> +# + +CLEANFILES = Linux-PAM_SAG.fo *~ + +EXTRA_DIST = $(XMLS) + +XMLS = Linux-PAM_SAG.xml $(shell ls $(srcdir)/pam_*.xml) + +DEP_XMLS = $(shell ls $(top_srcdir)/modules/pam_*/pam_*.xml) + +if ENABLE_REGENERATE_MAN +MAINTAINERCLEANFILES = Linux-PAM_SAG.txt Linux-PAM_SAG.pdf html/*.html + +all: Linux-PAM_SAG.txt html/Linux-PAM_SAG.html Linux-PAM_SAG.pdf + +Linux-PAM_SAG.pdf: $(XMLS) $(DEP_XMLS) +if ENABLE_GENERATE_PDF + $(XMLLINT) --nonet --xinclude --postvalid --noent --noout $< + $(XSLTPROC) --stringparam generate.toc "book toc" \ + --stringparam section.autolabel 1 \ + --stringparam section.label.includes.component.label 1 \ + --stringparam toc.max.depth 2 --xinclude --nonet \ + http://docbook.sourceforge.net/release/xsl/current/fo/docbook.xsl $< > Linux-PAM_SAG.fo + $(FO2PDF) Linux-PAM_SAG.fo $@ +else + echo "No fo2pdf processor installed, skip PDF generation" +endif + +Linux-PAM_SAG.txt: $(XMLS) $(DEP_XMLS) + $(XMLLINT) --nonet --xinclude --postvalid --noent --noout $< + $(XSLTPROC) --stringparam generate.toc "book toc" \ + --stringparam section.autolabel 1 \ + --stringparam section.label.includes.component.label 1 \ + --stringparam toc.max.depth 2 --xinclude --nonet \ + http://docbook.sourceforge.net/release/xsl/current/html/docbook.xsl $< | $(BROWSER) > $@ + +html/Linux-PAM_SAG.html: $(XMLS) $(DEP_XMLS) + @test -d html || mkdir -p html + $(XMLLINT) --nonet --xinclude --postvalid --noent --noout $< + $(XSLTPROC) --stringparam base.dir html/ \ + --stringparam root.filename Linux-PAM_SAG \ + --stringparam use.id.as.filename 1 \ + --stringparam chunk.first.sections 1 \ + --stringparam section.autolabel 1 \ + --stringparam section.label.includes.component.label 1 \ + --stringparam toc.max.depth 2 --xinclude --nonet \ + --stringparam chunker.output.encoding UTF-8 \ + http://docbook.sourceforge.net/release/xsl/current/html/chunk.xsl $< + +distclean-local: + -rm -rf html Linux-PAM_SAG.txt Linux-PAM_SAG.pdf +endif + +install-data-local: + $(mkinstalldirs) $(DESTDIR)$(docdir) + $(mkinstalldirs) $(DESTDIR)$(pdfdir) + $(mkinstalldirs) $(DESTDIR)$(htmldir) + if test -f html/Linux-PAM_SAG.html; then \ + $(install_sh_DATA) html/Linux-PAM_SAG.html html/sag-*.html \ + $(DESTDIR)$(htmldir)/; \ + elif test -f $(srcdir)/html/Linux-PAM_SAG.html; then \ + $(install_sh_DATA) $(srcdir)/html/Linux-PAM_SAG.html \ + $(srcdir)/html/sag-*.html \ + $(DESTDIR)$(htmldir)/; \ + fi + if test -f Linux-PAM_SAG.txt; then \ + $(install_sh_DATA) Linux-PAM_SAG.txt $(DESTDIR)$(docdir)/; \ + elif test -f $(srcdir)/Linux-PAM_SAG.txt; then \ + $(install_sh_DATA) $(srcdir)/Linux-PAM_SAG.txt \ + $(DESTDIR)$(docdir)/; \ + fi + if test -f Linux-PAM_SAG.pdf; then \ + $(install_sh_DATA) Linux-PAM_SAG.pdf $(DESTDIR)$(pdfdir)/; \ + elif test -f $(srcdir)/Linux-PAM_SAG.pdf; then \ + $(install_sh_DATA) $(srcdir)/Linux-PAM_SAG.pdf \ + $(DESTDIR)$(pdfdir)/; \ + fi + +uninstall-local: + -rm $(DESTDIR)$(htmldir)/Linux-PAM_SAG.html + -rm $(DESTDIR)$(htmldir)/sag-*.html + -rm $(DESTDIR)$(docdir)/Linux-PAM_SAG.txt + -rm $(DESTDIR)$(pdfdir)/Linux-PAM_SAG.pdf + +releasedocs: all + $(mkinstalldirs) $(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/html + if test -f html/Linux-PAM_SAG.html; then \ + cp -ap html/Linux-PAM_SAG.html html/sag-*.html \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/html/; \ + elif test -f $(srcdir)/html/Linux-PAM_SAG.html; then \ + cp -ap $(srcdir)/html/Linux-PAM_SAG.html \ + $(srcdir)/html/sag-*.html \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/html/; \ + else exit 1; \ + fi + if test -f Linux-PAM_SAG.txt; then \ + cp -p Linux-PAM_SAG.txt \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/; \ + elif test -f $(srcdir)/Linux-PAM_SAG.txt; then \ + cp -p $(srcdir)/Linux-PAM_SAG.txt \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/; \ + else exit 1; \ + fi + if test -f Linux-PAM_SAG.pdf; then \ + cp -p Linux-PAM_SAG.pdf \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/; \ + elif test -f $(srcdir)/Linux-PAM_SAG.pdf; then \ + cp -p $(srcdir)/Linux-PAM_SAG.pdf \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/; \ + else exit 1; \ + fi diff --git a/doc/sag/Makefile.in b/doc/sag/Makefile.in new file mode 100644 index 0000000..106d520 --- /dev/null +++ b/doc/sag/Makefile.in @@ -0,0 +1,601 @@ +# Makefile.in generated by automake 1.13.4 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2013 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software 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info-am install install-am install-data \ + install-data-am install-data-local install-dvi install-dvi-am \ + install-exec install-exec-am install-html install-html-am \ + install-info install-info-am install-man install-pdf \ + install-pdf-am install-ps install-ps-am install-strip \ + installcheck installcheck-am installdirs maintainer-clean \ + maintainer-clean-generic mostlyclean mostlyclean-generic \ + mostlyclean-libtool pdf pdf-am ps ps-am tags-am uninstall \ + uninstall-am uninstall-local + + +@ENABLE_REGENERATE_MAN_TRUE@all: Linux-PAM_SAG.txt html/Linux-PAM_SAG.html Linux-PAM_SAG.pdf + +@ENABLE_REGENERATE_MAN_TRUE@Linux-PAM_SAG.pdf: $(XMLS) $(DEP_XMLS) +@ENABLE_GENERATE_PDF_TRUE@@ENABLE_REGENERATE_MAN_TRUE@ $(XMLLINT) --nonet --xinclude --postvalid --noent --noout $< +@ENABLE_GENERATE_PDF_TRUE@@ENABLE_REGENERATE_MAN_TRUE@ $(XSLTPROC) --stringparam generate.toc "book toc" \ +@ENABLE_GENERATE_PDF_TRUE@@ENABLE_REGENERATE_MAN_TRUE@ --stringparam section.autolabel 1 \ 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--stringparam toc.max.depth 2 --xinclude --nonet \ +@ENABLE_REGENERATE_MAN_TRUE@ http://docbook.sourceforge.net/release/xsl/current/html/docbook.xsl $< | $(BROWSER) > $@ + +@ENABLE_REGENERATE_MAN_TRUE@html/Linux-PAM_SAG.html: $(XMLS) $(DEP_XMLS) +@ENABLE_REGENERATE_MAN_TRUE@ @test -d html || mkdir -p html +@ENABLE_REGENERATE_MAN_TRUE@ $(XMLLINT) --nonet --xinclude --postvalid --noent --noout $< +@ENABLE_REGENERATE_MAN_TRUE@ $(XSLTPROC) --stringparam base.dir html/ \ +@ENABLE_REGENERATE_MAN_TRUE@ --stringparam root.filename Linux-PAM_SAG \ +@ENABLE_REGENERATE_MAN_TRUE@ --stringparam use.id.as.filename 1 \ +@ENABLE_REGENERATE_MAN_TRUE@ --stringparam chunk.first.sections 1 \ +@ENABLE_REGENERATE_MAN_TRUE@ --stringparam section.autolabel 1 \ +@ENABLE_REGENERATE_MAN_TRUE@ --stringparam section.label.includes.component.label 1 \ +@ENABLE_REGENERATE_MAN_TRUE@ --stringparam toc.max.depth 2 --xinclude --nonet \ +@ENABLE_REGENERATE_MAN_TRUE@ --stringparam chunker.output.encoding UTF-8 \ +@ENABLE_REGENERATE_MAN_TRUE@ http://docbook.sourceforge.net/release/xsl/current/html/chunk.xsl $< + +@ENABLE_REGENERATE_MAN_TRUE@distclean-local: +@ENABLE_REGENERATE_MAN_TRUE@ -rm -rf html Linux-PAM_SAG.txt Linux-PAM_SAG.pdf + +install-data-local: + $(mkinstalldirs) $(DESTDIR)$(docdir) + $(mkinstalldirs) $(DESTDIR)$(pdfdir) + $(mkinstalldirs) $(DESTDIR)$(htmldir) + if test -f html/Linux-PAM_SAG.html; then \ + $(install_sh_DATA) html/Linux-PAM_SAG.html html/sag-*.html \ + $(DESTDIR)$(htmldir)/; \ + elif test -f $(srcdir)/html/Linux-PAM_SAG.html; then \ + $(install_sh_DATA) $(srcdir)/html/Linux-PAM_SAG.html \ + $(srcdir)/html/sag-*.html \ + $(DESTDIR)$(htmldir)/; \ + fi + if test -f Linux-PAM_SAG.txt; then \ + $(install_sh_DATA) Linux-PAM_SAG.txt $(DESTDIR)$(docdir)/; \ + elif test -f $(srcdir)/Linux-PAM_SAG.txt; then \ + $(install_sh_DATA) $(srcdir)/Linux-PAM_SAG.txt \ + $(DESTDIR)$(docdir)/; \ + fi + if test -f Linux-PAM_SAG.pdf; then \ + $(install_sh_DATA) Linux-PAM_SAG.pdf $(DESTDIR)$(pdfdir)/; \ + elif test -f $(srcdir)/Linux-PAM_SAG.pdf; then \ + $(install_sh_DATA) $(srcdir)/Linux-PAM_SAG.pdf \ + $(DESTDIR)$(pdfdir)/; \ + fi + +uninstall-local: + -rm $(DESTDIR)$(htmldir)/Linux-PAM_SAG.html + -rm $(DESTDIR)$(htmldir)/sag-*.html + -rm $(DESTDIR)$(docdir)/Linux-PAM_SAG.txt + -rm $(DESTDIR)$(pdfdir)/Linux-PAM_SAG.pdf + +releasedocs: all + $(mkinstalldirs) $(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/html + if test -f html/Linux-PAM_SAG.html; then \ + cp -ap html/Linux-PAM_SAG.html html/sag-*.html \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/html/; \ + elif test -f $(srcdir)/html/Linux-PAM_SAG.html; then \ + cp -ap $(srcdir)/html/Linux-PAM_SAG.html \ + $(srcdir)/html/sag-*.html \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/html/; \ + else exit 1; \ + fi + if test -f Linux-PAM_SAG.txt; then \ + cp -p Linux-PAM_SAG.txt \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/; \ + elif test -f $(srcdir)/Linux-PAM_SAG.txt; then \ + cp -p $(srcdir)/Linux-PAM_SAG.txt \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/; \ + else exit 1; \ + fi + if test -f Linux-PAM_SAG.pdf; then \ + cp -p Linux-PAM_SAG.pdf \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/; \ + elif test -f $(srcdir)/Linux-PAM_SAG.pdf; then \ + cp -p $(srcdir)/Linux-PAM_SAG.pdf \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/; \ + else exit 1; \ + fi + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/doc/sag/pam_access.xml b/doc/sag/pam_access.xml new file mode 100644 index 0000000..b9bf39d --- /dev/null +++ b/doc/sag/pam_access.xml @@ -0,0 +1,42 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_access'> + <title>pam_access - logdaemon style login access control</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_access/pam_access.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_access-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_access-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_access/pam_access.8.xml" xpointer='xpointer(//refsect1[@id = "pam_access-description"]/*)'/> + </section> + <section id='sag-access.conf-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_access/access.conf.5.xml" xpointer='xpointer(//refsect1[@id = "access.conf-description"]/*)'/> + </section> + <section id='sag-pam_access-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_access/pam_access.8.xml" xpointer='xpointer(//refsect1[@id = "pam_access-options"]/*)'/> + </section> + <section id='sag-pam_access-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_access/pam_access.8.xml" xpointer='xpointer(//refsect1[@id = "pam_access-types"]/*)'/> + </section> + <section id='sag-pam_access-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_access/pam_access.8.xml" xpointer='xpointer(//refsect1[@id = "pam_access-return_values"]/*)'/> + </section> + <section id='sag-pam_access-files'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_access/pam_access.8.xml" xpointer='xpointer(//refsect1[@id = "pam_access-files"]/*)'/> + </section> + <section id='sag-access.conf-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_access/access.conf.5.xml" xpointer='xpointer(//refsect1[@id = "access.conf-examples"]/*)'/> + </section> + <section id='sag-pam_access-authors'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_access/pam_access.8.xml" xpointer='xpointer(//refsect1[@id = "pam_access-authors"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_cracklib.xml b/doc/sag/pam_cracklib.xml new file mode 100644 index 0000000..898bbf9 --- /dev/null +++ b/doc/sag/pam_cracklib.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_cracklib'> + <title>pam_cracklib - checks the password against dictionary words</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_cracklib/pam_cracklib.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_cracklib-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_cracklib-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_cracklib/pam_cracklib.8.xml" xpointer='xpointer(//refsect1[@id = "pam_cracklib-description"]/*)'/> + </section> + <section id='sag-pam_cracklib-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_cracklib/pam_cracklib.8.xml" xpointer='xpointer(//refsect1[@id = "pam_cracklib-options"]/*)'/> + </section> + <section id='sag-pam_cracklib-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_cracklib/pam_cracklib.8.xml" xpointer='xpointer(//refsect1[@id = "pam_cracklib-types"]/*)'/> + </section> + <section id='sag-pam_cracklib-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_cracklib/pam_cracklib.8.xml" xpointer='xpointer(//refsect1[@id = "pam_cracklib-return_values"]/*)'/> + </section> + <section id='sag-pam_cracklib-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_cracklib/pam_cracklib.8.xml" xpointer='xpointer(//refsect1[@id = "pam_cracklib-examples"]/*)'/> + </section> + <section id='sag-pam_cracklib-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_cracklib/pam_cracklib.8.xml" xpointer='xpointer(//refsect1[@id = "pam_cracklib-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_debug.xml b/doc/sag/pam_debug.xml new file mode 100644 index 0000000..b131954 --- /dev/null +++ b/doc/sag/pam_debug.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_debug'> + <title>pam_debug - debug the PAM stack</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_debug/pam_debug.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_debug-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_debug-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_debug/pam_debug.8.xml" xpointer='xpointer(//refsect1[@id = "pam_debug-description"]/*)'/> + </section> + <section id='sag-pam_debug-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_debug/pam_debug.8.xml" xpointer='xpointer(//refsect1[@id = "pam_debug-options"]/*)'/> + </section> + <section id='sag-pam_debug-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_debug/pam_debug.8.xml" xpointer='xpointer(//refsect1[@id = "pam_debug-types"]/*)'/> + </section> + <section id='sag-pam_debug-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_debug/pam_debug.8.xml" xpointer='xpointer(//refsect1[@id = "pam_debug-return_values"]/*)'/> + </section> + <section id='sag-pam_debug-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_debug/pam_debug.8.xml" xpointer='xpointer(//refsect1[@id = "pam_debug-examples"]/*)'/> + </section> + <section id='sag-pam_debug-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_debug/pam_debug.8.xml" xpointer='xpointer(//refsect1[@id = "pam_debug-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_deny.xml b/doc/sag/pam_deny.xml new file mode 100644 index 0000000..2cb71a0 --- /dev/null +++ b/doc/sag/pam_deny.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_deny'> + <title>pam_deny - locking-out PAM module</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_deny/pam_deny.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_deny-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_deny-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_deny/pam_deny.8.xml" xpointer='xpointer(//refsect1[@id = "pam_deny-description"]/*)'/> + </section> + <section id='sag-pam_deny-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_deny/pam_deny.8.xml" xpointer='xpointer(//refsect1[@id = "pam_deny-options"]/*)'/> + </section> + <section id='sag-pam_deny-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_deny/pam_deny.8.xml" xpointer='xpointer(//refsect1[@id = "pam_deny-types"]/*)'/> + </section> + <section id='sag-pam_deny-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_deny/pam_deny.8.xml" xpointer='xpointer(//refsect1[@id = "pam_deny-return_values"]/*)'/> + </section> + <section id='sag-pam_deny-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_deny/pam_deny.8.xml" xpointer='xpointer(//refsect1[@id = "pam_deny-examples"]/*)'/> + </section> + <section id='sag-pam_deny-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_deny/pam_deny.8.xml" xpointer='xpointer(//refsect1[@id = "pam_deny-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_echo.xml b/doc/sag/pam_echo.xml new file mode 100644 index 0000000..b066d4a --- /dev/null +++ b/doc/sag/pam_echo.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_echo'> + <title>pam_echo - print text messages</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_echo/pam_echo.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_echo-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_echo-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_echo/pam_echo.8.xml" xpointer='xpointer(//refsect1[@id = "pam_echo-description"]/*)'/> + </section> + <section id='sag-pam_echo-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_echo/pam_echo.8.xml" xpointer='xpointer(//refsect1[@id = "pam_echo-options"]/*)'/> + </section> + <section id='sag-pam_echo-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_echo/pam_echo.8.xml" xpointer='xpointer(//refsect1[@id = "pam_echo-types"]/*)'/> + </section> + <section id='sag-pam_echo-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_echo/pam_echo.8.xml" xpointer='xpointer(//refsect1[@id = "pam_echo-return_values"]/*)'/> + </section> + <section id='sag-pam_echo-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_echo/pam_echo.8.xml" xpointer='xpointer(//refsect1[@id = "pam_echo-examples"]/*)'/> + </section> + <section id='sag-pam_echo-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_echo/pam_echo.8.xml" xpointer='xpointer(//refsect1[@id = "pam_echo-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_env.xml b/doc/sag/pam_env.xml new file mode 100644 index 0000000..9f6e633 --- /dev/null +++ b/doc/sag/pam_env.xml @@ -0,0 +1,42 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_env'> + <title>pam_env - set/unset environment variables</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_env/pam_env.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_env-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_env-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_env/pam_env.8.xml" xpointer='xpointer(//refsect1[@id = "pam_env-description"]/*)'/> + </section> + <section id='sag-pam_env.conf-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_env/pam_env.conf.5.xml" xpointer='xpointer(//refsect1[@id = "pam_env.conf-description"]/*)'/> + </section> + <section id='sag-pam_env-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_env/pam_env.8.xml" xpointer='xpointer(//refsect1[@id = "pam_env-options"]/*)'/> + </section> + <section id='sag-pam_env-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_env/pam_env.8.xml" xpointer='xpointer(//refsect1[@id = "pam_env-types"]/*)'/> + </section> + <section id='sag-pam_env-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_env/pam_env.8.xml" xpointer='xpointer(//refsect1[@id = "pam_env-return_values"]/*)'/> + </section> + <section id='sag-pam_env-files'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_env/pam_env.8.xml" xpointer='xpointer(//refsect1[@id = "pam_env-files"]/*)'/> + </section> + <section id='sag-pam_env.conf-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_env/pam_env.conf.5.xml" xpointer='xpointer(//refsect1[@id = "pam_env.conf-examples"]/*)'/> + </section> + <section id='sag-pam_env-authors'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_env/pam_env.8.xml" xpointer='xpointer(//refsect1[@id = "pam_env-authors"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_exec.xml b/doc/sag/pam_exec.xml new file mode 100644 index 0000000..265e7f4 --- /dev/null +++ b/doc/sag/pam_exec.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_exec'> + <title>pam_exec - call an external command</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_exec/pam_exec.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_exec-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_exec-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_exec/pam_exec.8.xml" xpointer='xpointer(//refsect1[@id = "pam_exec-description"]/*)'/> + </section> + <section id='sag-pam_exec-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_exec/pam_exec.8.xml" xpointer='xpointer(//refsect1[@id = "pam_exec-options"]/*)'/> + </section> + <section id='sag-pam_exec-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_exec/pam_exec.8.xml" xpointer='xpointer(//refsect1[@id = "pam_exec-types"]/*)'/> + </section> + <section id='sag-pam_exec-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_exec/pam_exec.8.xml" xpointer='xpointer(//refsect1[@id = "pam_exec-return_values"]/*)'/> + </section> + <section id='sag-pam_exec-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_exec/pam_exec.8.xml" xpointer='xpointer(//refsect1[@id = "pam_exec-examples"]/*)'/> + </section> + <section id='sag-pam_exec-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_exec/pam_exec.8.xml" xpointer='xpointer(//refsect1[@id = "pam_exec-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_faildelay.xml b/doc/sag/pam_faildelay.xml new file mode 100644 index 0000000..1d8295e --- /dev/null +++ b/doc/sag/pam_faildelay.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_faildelay'> + <title>pam_faildelay - change the delay on failure per-application</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_faildelay/pam_faildelay.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_faildelay-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_faildelay-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_faildelay/pam_faildelay.8.xml" xpointer='xpointer(//refsect1[@id = "pam_faildelay-description"]/*)'/> + </section> + <section id='sag-pam_faildelay-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_faildelay/pam_faildelay.8.xml" xpointer='xpointer(//refsect1[@id = "pam_faildelay-options"]/*)'/> + </section> + <section id='sag-pam_faildelay-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_faildelay/pam_faildelay.8.xml" xpointer='xpointer(//refsect1[@id = "pam_faildelay-types"]/*)'/> + </section> + <section id='sag-pam_faildelay-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_faildelay/pam_faildelay.8.xml" xpointer='xpointer(//refsect1[@id = "pam_faildelay-return_values"]/*)'/> + </section> + <section id='sag-pam_faildelay-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_faildelay/pam_faildelay.8.xml" xpointer='xpointer(//refsect1[@id = "pam_faildelay-examples"]/*)'/> + </section> + <section id='sag-pam_faildelay-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_faildelay/pam_faildelay.8.xml" xpointer='xpointer(//refsect1[@id = "pam_faildelay-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_filter.xml b/doc/sag/pam_filter.xml new file mode 100644 index 0000000..6a4a1ba --- /dev/null +++ b/doc/sag/pam_filter.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_filter'> + <title>pam_filter - filter module</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_filter/pam_filter.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_filter-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_filter-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_filter/pam_filter.8.xml" xpointer='xpointer(//refsect1[@id = "pam_filter-description"]/*)'/> + </section> + <section id='sag-pam_filter-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_filter/pam_filter.8.xml" xpointer='xpointer(//refsect1[@id = "pam_filter-options"]/*)'/> + </section> + <section id='sag-pam_filter-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_filter/pam_filter.8.xml" xpointer='xpointer(//refsect1[@id = "pam_filter-types"]/*)'/> + </section> + <section id='sag-pam_filter-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_filter/pam_filter.8.xml" xpointer='xpointer(//refsect1[@id = "pam_filter-return_values"]/*)'/> + </section> + <section id='sag-pam_filter-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_filter/pam_filter.8.xml" xpointer='xpointer(//refsect1[@id = "pam_filter-examples"]/*)'/> + </section> + <section id='sag-pam_filter-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_filter/pam_filter.8.xml" xpointer='xpointer(//refsect1[@id = "pam_filter-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_ftp.xml b/doc/sag/pam_ftp.xml new file mode 100644 index 0000000..b245626 --- /dev/null +++ b/doc/sag/pam_ftp.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_ftp'> + <title>pam_ftp - module for anonymous access</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_ftp/pam_ftp.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_ftp-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_ftp-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_ftp/pam_ftp.8.xml" xpointer='xpointer(//refsect1[@id = "pam_ftp-description"]/*)'/> + </section> + <section id='sag-pam_ftp-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_ftp/pam_ftp.8.xml" xpointer='xpointer(//refsect1[@id = "pam_ftp-options"]/*)'/> + </section> + <section id='sag-pam_ftp-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_ftp/pam_ftp.8.xml" xpointer='xpointer(//refsect1[@id = "pam_ftp-types"]/*)'/> + </section> + <section id='sag-pam_ftp-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_ftp/pam_ftp.8.xml" xpointer='xpointer(//refsect1[@id = "pam_ftp-return_values"]/*)'/> + </section> + <section id='sag-pam_ftp-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_ftp/pam_ftp.8.xml" xpointer='xpointer(//refsect1[@id = "pam_ftp-examples"]/*)'/> + </section> + <section id='sag-pam_ftp-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_ftp/pam_ftp.8.xml" xpointer='xpointer(//refsect1[@id = "pam_ftp-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_group.xml b/doc/sag/pam_group.xml new file mode 100644 index 0000000..ce82bf0 --- /dev/null +++ b/doc/sag/pam_group.xml @@ -0,0 +1,42 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_group'> + <title>pam_group - module to modify group access</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_group/pam_group.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_group-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_group-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_group/pam_group.8.xml" xpointer='xpointer(//refsect1[@id = "pam_group-description"]/*)'/> + </section> + <section id='sag-group.conf-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_group/group.conf.5.xml" xpointer='xpointer(//refsect1[@id = "group.conf-description"]/*)'/> + </section> + <section id='sag-pam_group-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_group/pam_group.8.xml" xpointer='xpointer(//refsect1[@id = "pam_group-options"]/*)'/> + </section> + <section id='sag-pam_group-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_group/pam_group.8.xml" xpointer='xpointer(//refsect1[@id = "pam_group-types"]/*)'/> + </section> + <section id='sag-pam_group-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_group/pam_group.8.xml" xpointer='xpointer(//refsect1[@id = "pam_group-return_values"]/*)'/> + </section> + <section id='sag-pam_group-files'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_group/pam_group.8.xml" xpointer='xpointer(//refsect1[@id = "pam_group-files"]/*)'/> + </section> + <section id='sag-group.conf-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_group/group.conf.5.xml" xpointer='xpointer(//refsect1[@id = "group.conf-examples"]/*)'/> + </section> + <section id='sag-pam_group-authors'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_group/pam_group.8.xml" xpointer='xpointer(//refsect1[@id = "pam_group-authors"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_issue.xml b/doc/sag/pam_issue.xml new file mode 100644 index 0000000..5033d23 --- /dev/null +++ b/doc/sag/pam_issue.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_issue'> + <title>pam_issue - add issue file to user prompt</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_issue/pam_issue.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_issue-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_issue-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_issue/pam_issue.8.xml" xpointer='xpointer(//refsect1[@id = "pam_issue-description"]/*)'/> + </section> + <section id='sag-pam_issue-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_issue/pam_issue.8.xml" xpointer='xpointer(//refsect1[@id = "pam_issue-options"]/*)'/> + </section> + <section id='sag-pam_issue-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_issue/pam_issue.8.xml" xpointer='xpointer(//refsect1[@id = "pam_issue-types"]/*)'/> + </section> + <section id='sag-pam_issue-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_issue/pam_issue.8.xml" xpointer='xpointer(//refsect1[@id = "pam_issue-return_values"]/*)'/> + </section> + <section id='sag-pam_issue-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_issue/pam_issue.8.xml" xpointer='xpointer(//refsect1[@id = "pam_issue-examples"]/*)'/> + </section> + <section id='sag-pam_issue-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_issue/pam_issue.8.xml" xpointer='xpointer(//refsect1[@id = "pam_issue-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_keyinit.xml b/doc/sag/pam_keyinit.xml new file mode 100644 index 0000000..3caa4c2 --- /dev/null +++ b/doc/sag/pam_keyinit.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_keyinit'> + <title>pam_keyinit - display the keyinit file</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_keyinit/pam_keyinit.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_keyinit-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_keyinit-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_keyinit/pam_keyinit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_keyinit-description"]/*)'/> + </section> + <section id='sag-pam_keyinit-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_keyinit/pam_keyinit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_keyinit-options"]/*)'/> + </section> + <section id='sag-pam_keyinit-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_keyinit/pam_keyinit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_keyinit-types"]/*)'/> + </section> + <section id='sag-pam_keyinit-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_keyinit/pam_keyinit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_keyinit-return_values"]/*)'/> + </section> + <section id='sag-pam_keyinit-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_keyinit/pam_keyinit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_keyinit-examples"]/*)'/> + </section> + <section id='sag-pam_keyinit-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_keyinit/pam_keyinit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_keyinit-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_lastlog.xml b/doc/sag/pam_lastlog.xml new file mode 100644 index 0000000..c250c01 --- /dev/null +++ b/doc/sag/pam_lastlog.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_lastlog'> + <title>pam_lastlog - display date of last login</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_lastlog/pam_lastlog.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_lastlog-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_lastlog-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_lastlog/pam_lastlog.8.xml" xpointer='xpointer(//refsect1[@id = "pam_lastlog-description"]/*)'/> + </section> + <section id='sag-pam_lastlog-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_lastlog/pam_lastlog.8.xml" xpointer='xpointer(//refsect1[@id = "pam_lastlog-options"]/*)'/> + </section> + <section id='sag-pam_lastlog-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_lastlog/pam_lastlog.8.xml" xpointer='xpointer(//refsect1[@id = "pam_lastlog-types"]/*)'/> + </section> + <section id='sag-pam_lastlog-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_lastlog/pam_lastlog.8.xml" xpointer='xpointer(//refsect1[@id = "pam_lastlog-return_values"]/*)'/> + </section> + <section id='sag-pam_lastlog-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_lastlog/pam_lastlog.8.xml" xpointer='xpointer(//refsect1[@id = "pam_lastlog-examples"]/*)'/> + </section> + <section id='sag-pam_lastlog-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_lastlog/pam_lastlog.8.xml" xpointer='xpointer(//refsect1[@id = "pam_lastlog-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_limits.xml b/doc/sag/pam_limits.xml new file mode 100644 index 0000000..7f898a4 --- /dev/null +++ b/doc/sag/pam_limits.xml @@ -0,0 +1,42 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_limits'> + <title>pam_limits - limit resources</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_limits/pam_limits.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_limits-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_limits-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_limits/pam_limits.8.xml" xpointer='xpointer(//refsect1[@id = "pam_limits-description"]/*)'/> + </section> + <section id='sag-limits.conf-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_limits/limits.conf.5.xml" xpointer='xpointer(//refsect1[@id = "limits.conf-description"]/*)'/> + </section> + <section id='sag-pam_limits-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_limits/pam_limits.8.xml" xpointer='xpointer(//refsect1[@id = "pam_limits-options"]/*)'/> + </section> + <section id='sag-pam_limits-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_limits/pam_limits.8.xml" xpointer='xpointer(//refsect1[@id = "pam_limits-types"]/*)'/> + </section> + <section id='sag-pam_limits-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_limits/pam_limits.8.xml" xpointer='xpointer(//refsect1[@id = "pam_limits-return_values"]/*)'/> + </section> + <section id='sag-pam_limits-files'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_limits/pam_limits.8.xml" xpointer='xpointer(//refsect1[@id = "pam_limits-files"]/*)'/> + </section> + <section id='sag-limits.conf-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_limits/limits.conf.5.xml" xpointer='xpointer(//refsect1[@id = "limits.conf-examples"]/*)'/> + </section> + <section id='sag-pam_limits-authors'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_limits/pam_limits.8.xml" xpointer='xpointer(//refsect1[@id = "pam_limits-authors"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_listfile.xml b/doc/sag/pam_listfile.xml new file mode 100644 index 0000000..db7acdc --- /dev/null +++ b/doc/sag/pam_listfile.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_listfile'> + <title>pam_listfile - deny or allow services based on an arbitrary file</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_listfile/pam_listfile.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_listfile-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_listfile-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_listfile/pam_listfile.8.xml" xpointer='xpointer(//refsect1[@id = "pam_listfile-description"]/*)'/> + </section> + <section id='sag-pam_listfile-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_listfile/pam_listfile.8.xml" xpointer='xpointer(//refsect1[@id = "pam_listfile-options"]/*)'/> + </section> + <section id='sag-pam_listfile-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_listfile/pam_listfile.8.xml" xpointer='xpointer(//refsect1[@id = "pam_listfile-types"]/*)'/> + </section> + <section id='sag-pam_listfile-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_listfile/pam_listfile.8.xml" xpointer='xpointer(//refsect1[@id = "pam_listfile-return_values"]/*)'/> + </section> + <section id='sag-pam_listfile-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_listfile/pam_listfile.8.xml" xpointer='xpointer(//refsect1[@id = "pam_listfile-examples"]/*)'/> + </section> + <section id='sag-pam_listfile-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_listfile/pam_listfile.8.xml" xpointer='xpointer(//refsect1[@id = "pam_listfile-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_localuser.xml b/doc/sag/pam_localuser.xml new file mode 100644 index 0000000..480ff96 --- /dev/null +++ b/doc/sag/pam_localuser.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_localuser'> + <title>pam_localuser - require users to be listed in /etc/passwd</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_localuser/pam_localuser.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_localuser-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_localuser-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_localuser/pam_localuser.8.xml" xpointer='xpointer(//refsect1[@id = "pam_localuser-description"]/*)'/> + </section> + <section id='sag-pam_localuser-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_localuser/pam_localuser.8.xml" xpointer='xpointer(//refsect1[@id = "pam_localuser-options"]/*)'/> + </section> + <section id='sag-pam_localuser-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_localuser/pam_localuser.8.xml" xpointer='xpointer(//refsect1[@id = "pam_localuser-types"]/*)'/> + </section> + <section id='sag-pam_localuser-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_localuser/pam_localuser.8.xml" xpointer='xpointer(//refsect1[@id = "pam_localuser-return_values"]/*)'/> + </section> + <section id='sag-pam_localuser-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_localuser/pam_localuser.8.xml" xpointer='xpointer(//refsect1[@id = "pam_localuser-examples"]/*)'/> + </section> + <section id='sag-pam_localuser-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_localuser/pam_localuser.8.xml" xpointer='xpointer(//refsect1[@id = "pam_localuser-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_loginuid.xml b/doc/sag/pam_loginuid.xml new file mode 100644 index 0000000..3b44284 --- /dev/null +++ b/doc/sag/pam_loginuid.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_loginuid'> + <title>pam_loginuid - record user's login uid to the process attribute</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_loginuid/pam_loginuid.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_loginuid-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_loginuid-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_loginuid/pam_loginuid.8.xml" xpointer='xpointer(//refsect1[@id = "pam_loginuid-description"]/*)'/> + </section> + <section id='sag-pam_loginuid-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_loginuid/pam_loginuid.8.xml" xpointer='xpointer(//refsect1[@id = "pam_loginuid-options"]/*)'/> + </section> + <section id='sag-pam_loginuid-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_loginuid/pam_loginuid.8.xml" xpointer='xpointer(//refsect1[@id = "pam_loginuid-types"]/*)'/> + </section> + <section id='sag-pam_loginuid-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_loginuid/pam_loginuid.8.xml" xpointer='xpointer(//refsect1[@id = "pam_loginuid-return_values"]/*)'/> + </section> + <section id='sag-pam_loginuid-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_loginuid/pam_loginuid.8.xml" xpointer='xpointer(//refsect1[@id = "pam_loginuid-examples"]/*)'/> + </section> + <section id='sag-pam_loginuid-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_loginuid/pam_loginuid.8.xml" xpointer='xpointer(//refsect1[@id = "pam_loginuid-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_mail.xml b/doc/sag/pam_mail.xml new file mode 100644 index 0000000..031f786 --- /dev/null +++ b/doc/sag/pam_mail.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_mail'> + <title>pam_mail - inform about available mail</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_mail/pam_mail.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_mail-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_mail-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_mail/pam_mail.8.xml" xpointer='xpointer(//refsect1[@id = "pam_mail-description"]/*)'/> + </section> + <section id='sag-pam_mail-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_mail/pam_mail.8.xml" xpointer='xpointer(//refsect1[@id = "pam_mail-options"]/*)'/> + </section> + <section id='sag-pam_mail-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_mail/pam_mail.8.xml" xpointer='xpointer(//refsect1[@id = "pam_mail-types"]/*)'/> + </section> + <section id='sag-pam_mail-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_mail/pam_mail.8.xml" xpointer='xpointer(//refsect1[@id = "pam_mail-return_values"]/*)'/> + </section> + <section id='sag-pam_mail-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_mail/pam_mail.8.xml" xpointer='xpointer(//refsect1[@id = "pam_mail-examples"]/*)'/> + </section> + <section id='sag-pam_mail-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_mail/pam_mail.8.xml" xpointer='xpointer(//refsect1[@id = "pam_mail-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_mkhomedir.xml b/doc/sag/pam_mkhomedir.xml new file mode 100644 index 0000000..dc6a1eb --- /dev/null +++ b/doc/sag/pam_mkhomedir.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_mkhomedir'> + <title>pam_mkhomedir - create users home directory</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_mkhomedir/pam_mkhomedir.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_mkhomedir-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_mkhomedir-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_mkhomedir/pam_mkhomedir.8.xml" xpointer='xpointer(//refsect1[@id = "pam_mkhomedir-description"]/*)'/> + </section> + <section id='sag-pam_mkhomedir-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_mkhomedir/pam_mkhomedir.8.xml" xpointer='xpointer(//refsect1[@id = "pam_mkhomedir-options"]/*)'/> + </section> + <section id='sag-pam_mkhomedir-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_mkhomedir/pam_mkhomedir.8.xml" xpointer='xpointer(//refsect1[@id = "pam_mkhomedir-types"]/*)'/> + </section> + <section id='sag-pam_mkhomedir-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_mkhomedir/pam_mkhomedir.8.xml" xpointer='xpointer(//refsect1[@id = "pam_mkhomedir-return_values"]/*)'/> + </section> + <section id='sag-pam_mkhomedir-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_mkhomedir/pam_mkhomedir.8.xml" xpointer='xpointer(//refsect1[@id = "pam_mkhomedir-examples"]/*)'/> + </section> + <section id='sag-pam_mkhomedir-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_mkhomedir/pam_mkhomedir.8.xml" xpointer='xpointer(//refsect1[@id = "pam_mkhomedir-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_motd.xml b/doc/sag/pam_motd.xml new file mode 100644 index 0000000..7a7d2de --- /dev/null +++ b/doc/sag/pam_motd.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_motd'> + <title>pam_motd - display the motd file</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_motd/pam_motd.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_motd-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_motd-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_motd/pam_motd.8.xml" xpointer='xpointer(//refsect1[@id = "pam_motd-description"]/*)'/> + </section> + <section id='sag-pam_motd-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_motd/pam_motd.8.xml" xpointer='xpointer(//refsect1[@id = "pam_motd-options"]/*)'/> + </section> + <section id='sag-pam_motd-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_motd/pam_motd.8.xml" xpointer='xpointer(//refsect1[@id = "pam_motd-types"]/*)'/> + </section> + <section id='sag-pam_motd-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_motd/pam_motd.8.xml" xpointer='xpointer(//refsect1[@id = "pam_motd-return_values"]/*)'/> + </section> + <section id='sag-pam_motd-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_motd/pam_motd.8.xml" xpointer='xpointer(//refsect1[@id = "pam_motd-examples"]/*)'/> + </section> + <section id='sag-pam_motd-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_motd/pam_motd.8.xml" xpointer='xpointer(//refsect1[@id = "pam_motd-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_namespace.xml b/doc/sag/pam_namespace.xml new file mode 100644 index 0000000..6ece9bc --- /dev/null +++ b/doc/sag/pam_namespace.xml @@ -0,0 +1,42 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_namespace'> + <title>pam_namespace - setup a private namespace</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_namespace/pam_namespace.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_namespace-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_namespace-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_namespace/pam_namespace.8.xml" xpointer='xpointer(//refsect1[@id = "pam_namespace-description"]/*)'/> + </section> + <section id='sag-namespace.conf-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_namespace/namespace.conf.5.xml" xpointer='xpointer(//refsect1[@id = "namespace.conf-description"]/*)'/> + </section> + <section id='sag-pam_namespace-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_namespace/pam_namespace.8.xml" xpointer='xpointer(//refsect1[@id = "pam_namespace-options"]/*)'/> + </section> + <section id='sag-pam_namespace-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_namespace/pam_namespace.8.xml" xpointer='xpointer(//refsect1[@id = "pam_namespace-types"]/*)'/> + </section> + <section id='sag-pam_namespace-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_namespace/pam_namespace.8.xml" xpointer='xpointer(//refsect1[@id = "pam_namespace-return_values"]/*)'/> + </section> + <section id='sag-pam_namespace-files'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_namespace/pam_namespace.8.xml" xpointer='xpointer(//refsect1[@id = "pam_namespace-files"]/*)'/> + </section> + <section id='sag-namespace.conf-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_namespace/namespace.conf.5.xml" xpointer='xpointer(//refsect1[@id = "namespace.conf-examples"]/*)'/> + </section> + <section id='sag-pam_namespace-authors'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_namespace/pam_namespace.8.xml" xpointer='xpointer(//refsect1[@id = "pam_namespace-authors"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_nologin.xml b/doc/sag/pam_nologin.xml new file mode 100644 index 0000000..0c626b8 --- /dev/null +++ b/doc/sag/pam_nologin.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_nologin'> + <title>pam_nologin - prevent non-root users from login</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_nologin/pam_nologin.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_nologin-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_nologin-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_nologin/pam_nologin.8.xml" xpointer='xpointer(//refsect1[@id = "pam_nologin-description"]/*)'/> + </section> + <section id='sag-pam_nologin-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_nologin/pam_nologin.8.xml" xpointer='xpointer(//refsect1[@id = "pam_nologin-options"]/*)'/> + </section> + <section id='sag-pam_nologin-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_nologin/pam_nologin.8.xml" xpointer='xpointer(//refsect1[@id = "pam_nologin-types"]/*)'/> + </section> + <section id='sag-pam_nologin-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_nologin/pam_nologin.8.xml" xpointer='xpointer(//refsect1[@id = "pam_nologin-return_values"]/*)'/> + </section> + <section id='sag-pam_nologin-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_nologin/pam_nologin.8.xml" xpointer='xpointer(//refsect1[@id = "pam_nologin-examples"]/*)'/> + </section> + <section id='sag-pam_nologin-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_nologin/pam_nologin.8.xml" xpointer='xpointer(//refsect1[@id = "pam_nologin-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_permit.xml b/doc/sag/pam_permit.xml new file mode 100644 index 0000000..7c20047 --- /dev/null +++ b/doc/sag/pam_permit.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_permit'> + <title>pam_permit - the promiscuous module</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_permit/pam_permit.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_permit-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_permit-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_permit/pam_permit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_permit-description"]/*)'/> + </section> + <section id='sag-pam_permit-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_permit/pam_permit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_permit-options"]/*)'/> + </section> + <section id='sag-pam_permit-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_permit/pam_permit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_permit-types"]/*)'/> + </section> + <section id='sag-pam_permit-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_permit/pam_permit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_permit-return_values"]/*)'/> + </section> + <section id='sag-pam_permit-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_permit/pam_permit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_permit-examples"]/*)'/> + </section> + <section id='sag-pam_permit-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_permit/pam_permit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_permit-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_pwhistory.xml b/doc/sag/pam_pwhistory.xml new file mode 100644 index 0000000..0677eae --- /dev/null +++ b/doc/sag/pam_pwhistory.xml @@ -0,0 +1,38 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_pwhistory'> + <title>pam_pwhistory - grant access using .pwhistory file</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_pwhistory/pam_pwhistory.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_pwhistory-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_pwhistory-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_pwhistory/pam_pwhistory.8.xml" xpointer='xpointer(//refsect1[@id = "pam_pwhistory-description"]/*)'/> + </section> + <section id='sag-pam_pwhistory-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_pwhistory/pam_pwhistory.8.xml" xpointer='xpointer(//refsect1[@id = "pam_pwhistory-options"]/*)'/> + </section> + <section id='sag-pam_pwhistory-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_pwhistory/pam_pwhistory.8.xml" xpointer='xpointer(//refsect1[@id = "pam_pwhistory-types"]/*)'/> + </section> + <section id='sag-pam_pwhistory-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_pwhistory/pam_pwhistory.8.xml" xpointer='xpointer(//refsect1[@id = "pam_pwhistory-return_values"]/*)'/> + </section> + <section id='sag-pam_pwhistory-files'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_pwhistory/pam_pwhistory.8.xml" xpointer='xpointer(//refsect1[@id = "pam_pwhistory-files"]/*)'/> + </section> + <section id='sag-pam_pwhistory-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_pwhistory/pam_pwhistory.8.xml" xpointer='xpointer(//refsect1[@id = "pam_pwhistory-examples"]/*)'/> + </section> + <section id='sag-pam_pwhistory-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_pwhistory/pam_pwhistory.8.xml" xpointer='xpointer(//refsect1[@id = "pam_pwhistory-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_rhosts.xml b/doc/sag/pam_rhosts.xml new file mode 100644 index 0000000..680a70c --- /dev/null +++ b/doc/sag/pam_rhosts.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_rhosts'> + <title>pam_rhosts - grant access using .rhosts file</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_rhosts/pam_rhosts.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_rhosts-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_rhosts-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_rhosts/pam_rhosts.8.xml" xpointer='xpointer(//refsect1[@id = "pam_rhosts-description"]/*)'/> + </section> + <section id='sag-pam_rhosts-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_rhosts/pam_rhosts.8.xml" xpointer='xpointer(//refsect1[@id = "pam_rhosts-options"]/*)'/> + </section> + <section id='sag-pam_rhosts-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_rhosts/pam_rhosts.8.xml" xpointer='xpointer(//refsect1[@id = "pam_rhosts-types"]/*)'/> + </section> + <section id='sag-pam_rhosts-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_rhosts/pam_rhosts.8.xml" xpointer='xpointer(//refsect1[@id = "pam_rhosts-return_values"]/*)'/> + </section> + <section id='sag-pam_rhosts-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_rhosts/pam_rhosts.8.xml" xpointer='xpointer(//refsect1[@id = "pam_rhosts-examples"]/*)'/> + </section> + <section id='sag-pam_rhosts-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_rhosts/pam_rhosts.8.xml" xpointer='xpointer(//refsect1[@id = "pam_rhosts-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_rootok.xml b/doc/sag/pam_rootok.xml new file mode 100644 index 0000000..59c99ae --- /dev/null +++ b/doc/sag/pam_rootok.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_rootok'> + <title>pam_rootok - gain only root access</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_rootok/pam_rootok.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_rootok-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_rootok-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_rootok/pam_rootok.8.xml" xpointer='xpointer(//refsect1[@id = "pam_rootok-description"]/*)'/> + </section> + <section id='sag-pam_rootok-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_rootok/pam_rootok.8.xml" xpointer='xpointer(//refsect1[@id = "pam_rootok-options"]/*)'/> + </section> + <section id='sag-pam_rootok-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_rootok/pam_rootok.8.xml" xpointer='xpointer(//refsect1[@id = "pam_rootok-types"]/*)'/> + </section> + <section id='sag-pam_rootok-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_rootok/pam_rootok.8.xml" xpointer='xpointer(//refsect1[@id = "pam_rootok-return_values"]/*)'/> + </section> + <section id='sag-pam_rootok-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_rootok/pam_rootok.8.xml" xpointer='xpointer(//refsect1[@id = "pam_rootok-examples"]/*)'/> + </section> + <section id='sag-pam_rootok-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_rootok/pam_rootok.8.xml" xpointer='xpointer(//refsect1[@id = "pam_rootok-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_securetty.xml b/doc/sag/pam_securetty.xml new file mode 100644 index 0000000..6ed13e5 --- /dev/null +++ b/doc/sag/pam_securetty.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_securetty'> + <title>pam_securetty - limit root login to special devices</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_securetty/pam_securetty.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_securetty-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_securetty-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_securetty/pam_securetty.8.xml" xpointer='xpointer(//refsect1[@id = "pam_securetty-description"]/*)'/> + </section> + <section id='sag-pam_securetty-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_securetty/pam_securetty.8.xml" xpointer='xpointer(//refsect1[@id = "pam_securetty-options"]/*)'/> + </section> + <section id='sag-pam_securetty-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_securetty/pam_securetty.8.xml" xpointer='xpointer(//refsect1[@id = "pam_securetty-types"]/*)'/> + </section> + <section id='sag-pam_securetty-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_securetty/pam_securetty.8.xml" xpointer='xpointer(//refsect1[@id = "pam_securetty-return_values"]/*)'/> + </section> + <section id='sag-pam_securetty-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_securetty/pam_securetty.8.xml" xpointer='xpointer(//refsect1[@id = "pam_securetty-examples"]/*)'/> + </section> + <section id='sag-pam_securetty-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_securetty/pam_securetty.8.xml" xpointer='xpointer(//refsect1[@id = "pam_securetty-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_selinux.xml b/doc/sag/pam_selinux.xml new file mode 100644 index 0000000..9a4f987 --- /dev/null +++ b/doc/sag/pam_selinux.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_selinux'> + <title>pam_selinux - set the default security context</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_selinux/pam_selinux.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_selinux-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_selinux-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_selinux/pam_selinux.8.xml" xpointer='xpointer(//refsect1[@id = "pam_selinux-description"]/*)'/> + </section> + <section id='sag-pam_selinux-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_selinux/pam_selinux.8.xml" xpointer='xpointer(//refsect1[@id = "pam_selinux-options"]/*)'/> + </section> + <section id='sag-pam_selinux-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_selinux/pam_selinux.8.xml" xpointer='xpointer(//refsect1[@id = "pam_selinux-types"]/*)'/> + </section> + <section id='sag-pam_selinux-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_selinux/pam_selinux.8.xml" xpointer='xpointer(//refsect1[@id = "pam_selinux-return_values"]/*)'/> + </section> + <section id='sag-pam_selinux-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_selinux/pam_selinux.8.xml" xpointer='xpointer(//refsect1[@id = "pam_selinux-examples"]/*)'/> + </section> + <section id='sag-pam_selinux-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_selinux/pam_selinux.8.xml" xpointer='xpointer(//refsect1[@id = "pam_selinux-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_sepermit.xml b/doc/sag/pam_sepermit.xml new file mode 100644 index 0000000..9831a13 --- /dev/null +++ b/doc/sag/pam_sepermit.xml @@ -0,0 +1,38 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_sepermit'> + <title>pam_sepermit - allow/reject access based on SELinux mode</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_sepermit/pam_sepermit.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_sepermit-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_sepermit-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_sepermit/pam_sepermit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_sepermit-description"]/*)'/> + </section> + <section id='sag-pam_sepermit-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_sepermit/pam_sepermit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_sepermit-options"]/*)'/> + </section> + <section id='sag-pam_sepermit-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_sepermit/pam_sepermit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_sepermit-types"]/*)'/> + </section> + <section id='sag-pam_sepermit-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_sepermit/pam_sepermit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_sepermit-return_values"]/*)'/> + </section> + <section id='sag-pam_sepermit-files'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_sepermit/pam_sepermit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_sepermit-files"]/*)'/> + </section> + <section id='sag-pam_sepermit-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_sepermit/pam_sepermit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_sepermit-examples"]/*)'/> + </section> + <section id='sag-pam_sepermit-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_sepermit/pam_sepermit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_sepermit-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_shells.xml b/doc/sag/pam_shells.xml new file mode 100644 index 0000000..b3b3d32 --- /dev/null +++ b/doc/sag/pam_shells.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_shells'> + <title>pam_shells - check for valid login shell</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_shells/pam_shells.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_shells-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_shells-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_shells/pam_shells.8.xml" xpointer='xpointer(//refsect1[@id = "pam_shells-description"]/*)'/> + </section> + <section id='sag-pam_shells-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_shells/pam_shells.8.xml" xpointer='xpointer(//refsect1[@id = "pam_shells-options"]/*)'/> + </section> + <section id='sag-pam_shells-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_shells/pam_shells.8.xml" xpointer='xpointer(//refsect1[@id = "pam_shells-types"]/*)'/> + </section> + <section id='sag-pam_shells-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_shells/pam_shells.8.xml" xpointer='xpointer(//refsect1[@id = "pam_shells-return_values"]/*)'/> + </section> + <section id='sag-pam_shells-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_shells/pam_shells.8.xml" xpointer='xpointer(//refsect1[@id = "pam_shells-examples"]/*)'/> + </section> + <section id='sag-pam_shells-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_shells/pam_shells.8.xml" xpointer='xpointer(//refsect1[@id = "pam_shells-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_succeed_if.xml b/doc/sag/pam_succeed_if.xml new file mode 100644 index 0000000..ce0792d --- /dev/null +++ b/doc/sag/pam_succeed_if.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_succeed_if'> + <title>pam_succeed_if - test account characteristics</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_succeed_if/pam_succeed_if.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_succeed_if-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_succeed_if-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_succeed_if/pam_succeed_if.8.xml" xpointer='xpointer(//refsect1[@id = "pam_succeed_if-description"]/*)'/> + </section> + <section id='sag-pam_succeed_if-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_succeed_if/pam_succeed_if.8.xml" xpointer='xpointer(//refsect1[@id = "pam_succeed_if-options"]/*)'/> + </section> + <section id='sag-pam_succeed_if-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_succeed_if/pam_succeed_if.8.xml" xpointer='xpointer(//refsect1[@id = "pam_succeed_if-types"]/*)'/> + </section> + <section id='sag-pam_succeed_if-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_succeed_if/pam_succeed_if.8.xml" xpointer='xpointer(//refsect1[@id = "pam_succeed_if-return_values"]/*)'/> + </section> + <section id='sag-pam_succeed_if-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_succeed_if/pam_succeed_if.8.xml" xpointer='xpointer(//refsect1[@id = "pam_succeed_if-examples"]/*)'/> + </section> + <section id='sag-pam_succeed_if-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_succeed_if/pam_succeed_if.8.xml" xpointer='xpointer(//refsect1[@id = "pam_succeed_if-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_tally.xml b/doc/sag/pam_tally.xml new file mode 100644 index 0000000..ec4afa5 --- /dev/null +++ b/doc/sag/pam_tally.xml @@ -0,0 +1,38 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_tally'> + <title>pam_tally - login counter (tallying) module</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tally/pam_tally.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_tally-cmdsynopsis1"]/*)'/> + </cmdsynopsis> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tally/pam_tally.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_tally-cmdsynopsis2"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_tally-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tally/pam_tally.8.xml" xpointer='xpointer(//refsect1[@id = "pam_tally-description"]/*)'/> + </section> + <section id='sag-pam_tally-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tally/pam_tally.8.xml" xpointer='xpointer(//refsect1[@id = "pam_tally-options"]/*)'/> + </section> + <section id='sag-pam_tally-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tally/pam_tally.8.xml" xpointer='xpointer(//refsect1[@id = "pam_tally-types"]/*)'/> + </section> + <section id='sag-pam_tally-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tally/pam_tally.8.xml" xpointer='xpointer(//refsect1[@id = "pam_tally-return_values"]/*)'/> + </section> + <section id='sag-pam_tally-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tally/pam_tally.8.xml" xpointer='xpointer(//refsect1[@id = "pam_tally-examples"]/*)'/> + </section> + <section id='sag-pam_tally-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tally/pam_tally.8.xml" xpointer='xpointer(//refsect1[@id = "pam_tally-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_tally2.xml b/doc/sag/pam_tally2.xml new file mode 100644 index 0000000..085003d --- /dev/null +++ b/doc/sag/pam_tally2.xml @@ -0,0 +1,46 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_tally2'> + <title>pam_tally2 - login counter (tallying) module</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tally2/pam_tally2.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_tally2-cmdsynopsis1"]/*)'/> + </cmdsynopsis> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tally2/pam_tally2.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_tally2-cmdsynopsis2"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_tally2-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tally2/pam_tally2.8.xml" xpointer='xpointer(//refsect1[@id = "pam_tally2-description"]/*)'/> + </section> + <section id='sag-pam_tally2-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tally2/pam_tally2.8.xml" xpointer='xpointer(//refsect1[@id = "pam_tally2-options"]/*)'/> + </section> + <section id='sag-pam_tally2-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tally2/pam_tally2.8.xml" xpointer='xpointer(//refsect1[@id = "pam_tally2-types"]/*)'/> + </section> + <section id='sag-pam_tally2-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tally2/pam_tally2.8.xml" xpointer='xpointer(//refsect1[@id = "pam_tally2-return_values"]/*)'/> + </section> + <section id='sag-pam_tally2-notes'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tally2/pam_tally2.8.xml" xpointer='xpointer(//refsect1[@id = "pam_tally2-notes"]/*)'/> + </section> + <section id='sag-pam_tally2-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tally2/pam_tally2.8.xml" xpointer='xpointer(//refsect1[@id = "pam_tally2-examples"]/*)'/> + </section> + <section id='sag-pam_tally2-files'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tally2/pam_tally2.8.xml" xpointer='xpointer(//refsect1[@id = "pam_tally2-files"]/*)'/> + </section> + <section id='sag-pam_tally2-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tally2/pam_tally2.8.xml" xpointer='xpointer(//refsect1[@id = "pam_tally2-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_time.xml b/doc/sag/pam_time.xml new file mode 100644 index 0000000..dd9bba4 --- /dev/null +++ b/doc/sag/pam_time.xml @@ -0,0 +1,42 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_time'> + <title>pam_time - time controled access</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_time/pam_time.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_time-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_time-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_time/pam_time.8.xml" xpointer='xpointer(//refsect1[@id = "pam_time-description"]/*)'/> + </section> + <section id='sag-time.conf-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_time/time.conf.5.xml" xpointer='xpointer(//refsect1[@id = "time.conf-description"]/*)'/> + </section> + <section id='sag-pam_time-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_time/pam_time.8.xml" xpointer='xpointer(//refsect1[@id = "pam_time-options"]/*)'/> + </section> + <section id='sag-pam_time-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_time/pam_time.8.xml" xpointer='xpointer(//refsect1[@id = "pam_time-types"]/*)'/> + </section> + <section id='sag-pam_time-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_time/pam_time.8.xml" xpointer='xpointer(//refsect1[@id = "pam_time-return_values"]/*)'/> + </section> + <section id='sag-pam_time-files'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_time/pam_time.8.xml" xpointer='xpointer(//refsect1[@id = "pam_time-files"]/*)'/> + </section> + <section id='sag-time.conf-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_time/time.conf.5.xml" xpointer='xpointer(//refsect1[@id = "time.conf-examples"]/*)'/> + </section> + <section id='sag-pam_time-authors'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_time/pam_time.8.xml" xpointer='xpointer(//refsect1[@id = "pam_time-authors"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_timestamp.xml b/doc/sag/pam_timestamp.xml new file mode 100644 index 0000000..833a6ba --- /dev/null +++ b/doc/sag/pam_timestamp.xml @@ -0,0 +1,42 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_timestamp'> + <title>pam_timestamp - authenticate using cached successful authentication attempts</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_timestamp/pam_timestamp.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_timestamp-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_timestamp-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_timestamp/pam_timestamp.8.xml" xpointer='xpointer(//refsect1[@id = "pam_timestamp-description"]/*)'/> + </section> + <section id='sag-pam_timestamp-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_timestamp/pam_timestamp.8.xml" xpointer='xpointer(//refsect1[@id = "pam_timestamp-options"]/*)'/> + </section> + <section id='sag-pam_timestamp-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_timestamp/pam_timestamp.8.xml" xpointer='xpointer(//refsect1[@id = "pam_timestamp-types"]/*)'/> + </section> + <section id='sag-pam_timestamp-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_timestamp/pam_timestamp.8.xml" xpointer='xpointer(//refsect1[@id = "pam_timestamp-return_values"]/*)'/> + </section> + <section id='sag-pam_timestamp-notes'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_timestamp/pam_timestamp.8.xml" xpointer='xpointer(//refsect1[@id = "pam_timestamp-notes"]/*)'/> + </section> + <section id='sag-pam_timestamp-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_timestamp/pam_timestamp.8.xml" xpointer='xpointer(//refsect1[@id = "pam_timestamp-examples"]/*)'/> + </section> + <section id='sag-pam_timestamp-files'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_timestamp/pam_timestamp.8.xml" xpointer='xpointer(//refsect1[@id = "pam_timestamp-files"]/*)'/> + </section> + <section id='sag-pam_timestamp-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_timestamp/pam_timestamp.8.xml" xpointer='xpointer(//refsect1[@id = "pam_timestamp-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_tty_audit.xml b/doc/sag/pam_tty_audit.xml new file mode 100644 index 0000000..86d1cd0 --- /dev/null +++ b/doc/sag/pam_tty_audit.xml @@ -0,0 +1,38 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_tty_audit'> + <title>pam_tty_audit - enable/disable tty auditing</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tty_audit/pam_tty_audit.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_tty_audit-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_tty_audit-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tty_audit/pam_tty_audit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_tty_audit-description"]/*)'/> + </section> + <section id='sag-pam_tty_audit-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tty_audit/pam_tty_audit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_tty_audit-options"]/*)'/> + </section> + <section id='sag-pam_tty_audit-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tty_audit/pam_tty_audit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_tty_audit-types"]/*)'/> + </section> + <section id='sag-pam_tty_audit-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tty_audit/pam_tty_audit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_tty_audit-return_values"]/*)'/> + </section> + <section id='sag-pam_tty_audit-notes'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tty_audit/pam_tty_audit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_tty_audit-notes"]/*)'/> + </section> + <section id='sag-pam_tty_audit-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tty_audit/pam_tty_audit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_tty_audit-examples"]/*)'/> + </section> + <section id='sag-pam_tty_audit-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_tty_audit/pam_tty_audit.8.xml" xpointer='xpointer(//refsect1[@id = "pam_tty_audit-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_umask.xml b/doc/sag/pam_umask.xml new file mode 100644 index 0000000..b053508 --- /dev/null +++ b/doc/sag/pam_umask.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_umask'> + <title>pam_umask - set the file mode creation mask</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_umask/pam_umask.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_umask-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_umask-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_umask/pam_umask.8.xml" xpointer='xpointer(//refsect1[@id = "pam_umask-description"]/*)'/> + </section> + <section id='sag-pam_umask-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_umask/pam_umask.8.xml" xpointer='xpointer(//refsect1[@id = "pam_umask-options"]/*)'/> + </section> + <section id='sag-pam_umask-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_umask/pam_umask.8.xml" xpointer='xpointer(//refsect1[@id = "pam_umask-types"]/*)'/> + </section> + <section id='sag-pam_umask-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_umask/pam_umask.8.xml" xpointer='xpointer(//refsect1[@id = "pam_umask-return_values"]/*)'/> + </section> + <section id='sag-pam_umask-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_umask/pam_umask.8.xml" xpointer='xpointer(//refsect1[@id = "pam_umask-examples"]/*)'/> + </section> + <section id='sag-pam_umask-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_umask/pam_umask.8.xml" xpointer='xpointer(//refsect1[@id = "pam_umask-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_unix.xml b/doc/sag/pam_unix.xml new file mode 100644 index 0000000..24bbaec --- /dev/null +++ b/doc/sag/pam_unix.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_unix'> + <title>pam_unix - traditional password authentication</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_unix/pam_unix.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_unix-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_unix-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_unix/pam_unix.8.xml" xpointer='xpointer(//refsect1[@id = "pam_unix-description"]/*)'/> + </section> + <section id='sag-pam_unix-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_unix/pam_unix.8.xml" xpointer='xpointer(//refsect1[@id = "pam_unix-options"]/*)'/> + </section> + <section id='sag-pam_unix-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_unix/pam_unix.8.xml" xpointer='xpointer(//refsect1[@id = "pam_unix-types"]/*)'/> + </section> + <section id='sag-pam_unix-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_unix/pam_unix.8.xml" xpointer='xpointer(//refsect1[@id = "pam_unix-return_values"]/*)'/> + </section> + <section id='sag-pam_unix-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_unix/pam_unix.8.xml" xpointer='xpointer(//refsect1[@id = "pam_unix-examples"]/*)'/> + </section> + <section id='sag-pam_unix-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_unix/pam_unix.8.xml" xpointer='xpointer(//refsect1[@id = "pam_unix-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_userdb.xml b/doc/sag/pam_userdb.xml new file mode 100644 index 0000000..47c2c72 --- /dev/null +++ b/doc/sag/pam_userdb.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_userdb'> + <title>pam_userdb - authenticate against a db database</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_userdb/pam_userdb.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_userdb-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_userdb-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_userdb/pam_userdb.8.xml" xpointer='xpointer(//refsect1[@id = "pam_userdb-description"]/*)'/> + </section> + <section id='sag-pam_userdb-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_userdb/pam_userdb.8.xml" xpointer='xpointer(//refsect1[@id = "pam_userdb-options"]/*)'/> + </section> + <section id='sag-pam_userdb-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_userdb/pam_userdb.8.xml" xpointer='xpointer(//refsect1[@id = "pam_userdb-types"]/*)'/> + </section> + <section id='sag-pam_userdb-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_userdb/pam_userdb.8.xml" xpointer='xpointer(//refsect1[@id = "pam_userdb-return_values"]/*)'/> + </section> + <section id='sag-pam_userdb-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_userdb/pam_userdb.8.xml" xpointer='xpointer(//refsect1[@id = "pam_userdb-examples"]/*)'/> + </section> + <section id='sag-pam_userdb-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_userdb/pam_userdb.8.xml" xpointer='xpointer(//refsect1[@id = "pam_userdb-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_warn.xml b/doc/sag/pam_warn.xml new file mode 100644 index 0000000..e2e7adb --- /dev/null +++ b/doc/sag/pam_warn.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_warn'> + <title>pam_warn - logs all PAM items</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_warn/pam_warn.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_warn-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_warn-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_warn/pam_warn.8.xml" xpointer='xpointer(//refsect1[@id = "pam_warn-description"]/*)'/> + </section> + <section id='sag-pam_warn-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_warn/pam_warn.8.xml" xpointer='xpointer(//refsect1[@id = "pam_warn-options"]/*)'/> + </section> + <section id='sag-pam_warn-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_warn/pam_warn.8.xml" xpointer='xpointer(//refsect1[@id = "pam_warn-types"]/*)'/> + </section> + <section id='sag-pam_warn-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_warn/pam_warn.8.xml" xpointer='xpointer(//refsect1[@id = "pam_warn-return_values"]/*)'/> + </section> + <section id='sag-pam_warn-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_warn/pam_warn.8.xml" xpointer='xpointer(//refsect1[@id = "pam_warn-examples"]/*)'/> + </section> + <section id='sag-pam_warn-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_warn/pam_warn.8.xml" xpointer='xpointer(//refsect1[@id = "pam_warn-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_wheel.xml b/doc/sag/pam_wheel.xml new file mode 100644 index 0000000..5ea011e --- /dev/null +++ b/doc/sag/pam_wheel.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_wheel'> + <title>pam_wheel - only permit root access to members of group wheel</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_wheel/pam_wheel.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_wheel-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_wheel-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_wheel/pam_wheel.8.xml" xpointer='xpointer(//refsect1[@id = "pam_wheel-description"]/*)'/> + </section> + <section id='sag-pam_wheel-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_wheel/pam_wheel.8.xml" xpointer='xpointer(//refsect1[@id = "pam_wheel-options"]/*)'/> + </section> + <section id='sag-pam_wheel-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_wheel/pam_wheel.8.xml" xpointer='xpointer(//refsect1[@id = "pam_wheel-types"]/*)'/> + </section> + <section id='sag-pam_wheel-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_wheel/pam_wheel.8.xml" xpointer='xpointer(//refsect1[@id = "pam_wheel-return_values"]/*)'/> + </section> + <section id='sag-pam_wheel-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_wheel/pam_wheel.8.xml" xpointer='xpointer(//refsect1[@id = "pam_wheel-examples"]/*)'/> + </section> + <section id='sag-pam_wheel-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_wheel/pam_wheel.8.xml" xpointer='xpointer(//refsect1[@id = "pam_wheel-author"]/*)'/> + </section> +</section> diff --git a/doc/sag/pam_xauth.xml b/doc/sag/pam_xauth.xml new file mode 100644 index 0000000..9aca9ff --- /dev/null +++ b/doc/sag/pam_xauth.xml @@ -0,0 +1,34 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<section id='sag-pam_xauth'> + <title>pam_xauth - forward xauth keys between users</title> + <cmdsynopsis> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_xauth/pam_xauth.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_xauth-cmdsynopsis"]/*)'/> + </cmdsynopsis> + <section id='sag-pam_xauth-description'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_xauth/pam_xauth.8.xml" xpointer='xpointer(//refsect1[@id = "pam_xauth-description"]/*)'/> + </section> + <section id='sag-pam_xauth-options'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_xauth/pam_xauth.8.xml" xpointer='xpointer(//refsect1[@id = "pam_xauth-options"]/*)'/> + </section> + <section id='sag-pam_xauth-types'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_xauth/pam_xauth.8.xml" xpointer='xpointer(//refsect1[@id = "pam_xauth-types"]/*)'/> + </section> + <section id='sag-pam_xauth-return_values'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_xauth/pam_xauth.8.xml" xpointer='xpointer(//refsect1[@id = "pam_xauth-return_values"]/*)'/> + </section> + <section id='sag-pam_xauth-examples'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_xauth/pam_xauth.8.xml" xpointer='xpointer(//refsect1[@id = "pam_xauth-examples"]/*)'/> + </section> + <section id='sag-pam_xauth-author'> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="../../modules/pam_xauth/pam_xauth.8.xml" xpointer='xpointer(//refsect1[@id = "pam_xauth-author"]/*)'/> + </section> +</section> diff --git a/doc/specs/Makefile.am b/doc/specs/Makefile.am new file mode 100644 index 0000000..99ecc70 --- /dev/null +++ b/doc/specs/Makefile.am @@ -0,0 +1,25 @@ +# +# Copyright (c) 2005, 2006, 2010 Thorsten Kukuk <kukuk@suse.de> +# + +CLEANFILES = draft-morgan-pam-current.txt *~ + +EXTRA_DIST = draft-morgan-pam.raw std-agent-id.raw rfc86.0.txt + +draft-morgan-pam-current.txt: padout draft-morgan-pam.raw + ./padout < $(srcdir)/draft-morgan-pam.raw > draft-morgan-pam-current.txt + +AM_YFLAGS = -d + +CC = @CC_FOR_BUILD@ +CPPFLAGS = @BUILD_CPPFLAGS@ +CFLAGS = @BUILD_CFLAGS@ +LDFLAGS = @BUILD_LDFLAGS@ + +BUILT_SOURCES = parse_y.h + +noinst_PROGRAMS = padout + +padout_SOURCES = parse_l.l parse_y.y + +doc_DATA = draft-morgan-pam-current.txt rfc86.0.txt diff --git a/doc/specs/Makefile.in b/doc/specs/Makefile.in new file mode 100644 index 0000000..50045fd --- /dev/null +++ b/doc/specs/Makefile.in @@ -0,0 +1,743 @@ +# Makefile.in generated by automake 1.13.4 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2013 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# +# Copyright (c) 2005, 2006, 2010 Thorsten Kukuk <kukuk@suse.de> +# + + +VPATH = @srcdir@ +am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)' +am__make_running_with_option = \ + case $${target_option-} in \ + ?) ;; \ + *) echo "am__make_running_with_option: internal error: invalid" \ + "target option '$${target_option-}' specified" >&2; \ + exit 1;; \ + esac; \ + has_opt=no; \ + sane_makeflags=$$MAKEFLAGS; \ + if $(am__is_gnu_make); then \ + sane_makeflags=$$MFLAGS; \ + else \ + case $$MAKEFLAGS in \ + *\\[\ \ ]*) \ + bs=\\; \ + sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \ + | sed "s/$$bs$$bs[$$bs $$bs ]*//g"`;; \ + esac; \ + fi; \ + skip_next=no; \ + strip_trailopt () \ + { \ + flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \ + }; \ + for flg in $$sane_makeflags; do \ + test $$skip_next = yes && { 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GTAGS TAGS all all-am check check-am clean clean-generic \ + clean-libtool clean-noinstPROGRAMS cscopelist-am ctags \ + ctags-am distclean distclean-compile distclean-generic \ + distclean-libtool distclean-tags distdir dvi dvi-am html \ + html-am info info-am install install-am install-data \ + install-data-am install-docDATA install-dvi install-dvi-am \ + install-exec install-exec-am install-html install-html-am \ + install-info install-info-am install-man install-pdf \ + install-pdf-am install-ps install-ps-am install-strip \ + installcheck installcheck-am installdirs maintainer-clean \ + maintainer-clean-generic mostlyclean mostlyclean-compile \ + mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \ + tags tags-am uninstall uninstall-am uninstall-docDATA + + +draft-morgan-pam-current.txt: padout draft-morgan-pam.raw + ./padout < $(srcdir)/draft-morgan-pam.raw > draft-morgan-pam-current.txt + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/doc/specs/draft-morgan-pam.raw b/doc/specs/draft-morgan-pam.raw new file mode 100644 index 0000000..ec5bba4 --- /dev/null +++ b/doc/specs/draft-morgan-pam.raw @@ -0,0 +1,764 @@ +Open-PAM working group ## A.G. Morgan +Internet Draft: ## Dec 8, 2001 +Document: draft-morgan-pam-08.txt ## +Expires: June 8, 2002 ## +Obsoletes: draft-morgan-pam-07.txt## + +## Pluggable Authentication Modules (PAM) ## + +#$ Status of this memo + +This document is a draft specification. Its contents are subject to +change with revision. The latest version of this draft may be obtained +from here: + + http://www.kernel.org/pub/linux/libs/pam/pre/doc/ + +As + + Linux-PAM-'version'-docs.tar.gz + +It is also contained in the Linux-PAM tar ball. + +#$ Abstract + +This document is concerned with the definition of a general +infrastructure for module based authentication. The infrastructure is +named Pluggable Authentication Modules (PAM for short). + +#$ Introduction + +Computers are tools. They provide services to people and other +computers (collectively we shall call these _users_ entities). In +order to provide convenient, reliable and individual service to +different entities, it is common for entities to be labelled. Having +defined a label as referring to a some specific entity, the label is +used for the purpose of protecting and allocating data resources. + +All modern operating systems have a notion of labelled entities and +all modern operating systems face a common problem: how to +authenticate the association of a predefined label with applicant +entities. + +There are as many authentication methods as one might care to count. +None of them are perfect and none of them are invulnerable. In +general, any given authentication method becomes weaker over time. It +is common then for new authentication methods to be developed in +response to newly discovered weaknesses in the old authentication +methods. + +The problem with inventing new authentication methods is the fact that +old applications do not support them. This contributes to an inertia +that discourages the overhaul of weakly protected systems. Another +problem is that individuals (people) are frequently powerless to layer +the protective authentication around their systems. They are forced +to rely on single (lowest common denominator) authentication schemes +even in situations where this is far from appropriate. + +PAM, as discussed in this document, is a generalization of the +approach first introduced in [#$R#{OSF_RFC_PAM}]. In short, it is a +general framework of interfaces that abstract the process of +authentication. With PAM, a service provider can custom protect +individual services to the level that they deem is appropriate. + +PAM has nothing explicit to say about transport layer encryption. +Within the context of this document encryption and/or compression of +data exchanges are application specific (strictly between client and +server) and orthogonal to the process of authentication. + +#$ Definitions + +Here we pose the authentication problem as one of configuring defined +interfaces between two entities. + +#$$#{players} Players in the authentication process + +PAM reserves the following words to specify unique entities in the +authentication process: + + applicant + the entity (user) initiating an application for service + [PAM associates the PAM_RUSER _item_ with this requesting user]. + + arbitrator + the entity (user) under whose identity the service application + is negotiated and with whose authority service is granted. + + user + the entity (user) whose identity is being authenticated + [PAM associates the PAM_USER _item_ with this identity]. + + server + the application that provides service, or acts as an + authenticated gateway to the requested service. This + application is completely responsible for the server end of + the transport layer connecting the server to the client. + PAM makes no assumptions about how data is encapsulated for + exchanges between the server and the client, only that full + octet sequences can be freely exchanged without corruption. + + client + application providing the direct/primary interface to + applicant. This application is completely responsible + for the client end of the transport layer connecting the + server to the client. PAM makes no assumptions about how data + is encapsulated for exchanges between the server and the + client, only that full octet sequences can be freely + exchanged without corruption. + + module + authentication binary that provides server-side support for + some (arbitrary) authentication method. + + agent + authentication binary that provides client-side support for + some (arbitrary) authentication method. + +Here is a diagram to help orient the reader: + +## +-------+ +--------+ ## +## . . . . .| agent | .| module | ## +## . +-------+ .+--------+ ## +## V | . | ## +## . | V | ## +## +---------+ +-------+ . +------+ ## +## | | |libpamc| . |libpam| ## +## | | +-------+ . +------+ ## +## |applicant| | . | ## +## | | +--------+ +----------+ ## +## | |---| client |-----------| server | ## +## +---------+ +--------+ +----------+ ## + +Solid lines connecting the boxes represent two-way interaction. The +dotted-directed lines indicate an optional connection beteween the +plugin module (agent) and the server (applicant). In the case of the +module, this represents the module invoking the 'conversation' +callback function provided to libpam by the server application when it +inititializes the libpam library. In the case of the agent, this may +be some out-of-PAM API interaction (for example directly displaying a +dialog box under X). + +#$$ Defined Data Types + +In this draft, we define two composite data types, the text string and +the binary prompt. They are the data types used to communicate +authentication requests and responses. + +#$$$#{text_string} text string + +The text string is a simple sequence of non-NUL (NUL = 0x00) +octets. Terminated with a single NUL (0x00) octet. The character set +employed in the octet sequence may be negotiated out of band, but +defaults to utf-8. + +## --------------------------- ## +## [ character data | NUL ] ## +## [ octet sequence | 0x00 ] ## +## --------------------------- ## + +Within the rest of this text, PAM text strings are delimited with a +pair of double quotes. Example, "this" = {'t';'h';'i';'s';0x00}. + +#$$$#{binary_prompt} binary prompt + +A binary prompt consists of a stream of octets arranged as follows: + +## ---------------------------------------- ## +## [ u32 | u8 | (length-5 octets) ] ## +## [ length | control | data ] ## +## ---------------------------------------- ## + +That is, a 32-bit unsigned integer in network byte order, a single +unsigned byte of control information and a sequence of octets of +length (length-5). The composition of the _data_ is context dependent +but is generally not a concern for either the server or the client. It +is very much the concern of modules and agents. + +For purposes of interoperability, we define the following control +characters as legal. + +## value symbol description ## +## ------------------------------------------------- ## +## 0x01 PAM_BPC_OK - continuation packet ## +## 0x02 PAM_BPC_SELECT - initialization packet ## +## 0x03 PAM_BPC_DONE - termination packet ## +## 0x04 PAM_BPC_FAIL - unable to execute ## + +The following control characters are only legal for exchanges between +an agent and a client (it is the responsibility of the client to +enforce this rule in the face of a rogue server): + +## 0x41 PAM_BPC_GETENV - obtain client env.var ## +## 0x42 PAM_BPC_PUTENV - set client env.var ## +## 0x43 PAM_BPC_TEXT - display message ## +## 0x44 PAM_BPC_ERROR - display error message ## +## 0x45 PAM_BPC_PROMPT - echo'd text prompt ## +## 0x46 PAM_BPC_PASS - non-echo'd text prompt ## +## 0x46 PAM_BPC_STATUS - ping all active clients## +## 0x47 PAM_BPC_ABORT - please abort session ## + +Note, length is always equal to the total length of the binary +prompt and represented by a network ordered unsigned 32 bit integer. + +#$$$$#{agent_ids} PAM_BPC_SELECT binary prompts + +Binary prompts of control type PAM_BPC_SELECT have a defined +data part. It is composed of three elements: + + {agent_id;'/';data} + +The agent_id is a sequence of characters satisfying the following +regexp: + + /^[a-z0-9\_]+(@[a-z0-9\_.]+)?$/ + +and has a specific form for each independent agent. + +o Agent_ids that do not contain an at-sign (@) are to be considered as + representing some authentication mode that is a "public + standard" see reference [#$R#{PAM_STD_AGENTIDS}]. Registered names + MUST NOT contain an at-sign (@). + +o Anyone can define additional agents by using names in the format + name@domainname, e.g. "ouragent@example.com". The part following + the at-sign MUST be a valid fully qualified internet domain name + [RFC-1034] controlled by the person or organization defining the + name. (Said another way, if you control the email address that + your agent has as an identifier, they you are entitled to use + this identifier.) It is up to each domain how it manages its local + namespace. + +The '/' character is a mandatory delimiter, indicating the end of the +agent_id. The trailing data is of a format specific to the agent with +the given agent_id. + + +#$$ Special cases + +In a previous section (#{players}) we identified the most general +selection of authentication participants. In the case of network +authentication, it is straightforward to ascribe identities to the +defined participants. However, there are also special (less general) +cases that we recognize here. + +The primary authentication step, when a user is directly introduced +into a computer system (log's on to a workstation) is a special case. +In this situation, the client and the server are generally one +application. Before authenticating such a user, the applicant is +formally unknown: PAM_RUSER is NULL. + +Some client-server implementations (telnet for example) provide +effective full tty connections. In these cases, the four simple text +string prompting cases (see below) can be handled as in the primary +login step. In other words, the server absorbs most of the overhead of +propagating authentication messages. In these cases, there needs to be +special client/server support for handling binary prompts. + +In some circumstances, a legacy network transfer protocol can carry +authentication information. In such cases, a desire to support legacy +clients (with no client-side support for PAM) will neccessitate the +'hardcoding' of an agent protocol into the server application. Whilst +against the spirit of PAM, this special casing can be managed by the +server's 'conversation function' (see below). The guiding principle +when implementing such support is for the application developer to +relegate the authentication process to the PAM module -- simply +performing a transcription of data from binary-prompt to legacy +network 'packet' and visa-versa for propagating replies back to the +driving PAM module. A common case of this is with network protocols +that define an initialization packet of "user+password". In such cases +one should attempt to support the "userpass" agent-id and its defined +protocol. + +#$ Defined interfaces for information flow + +Here, we discuss the information exchange interfaces between the +players in the authentication process. It should be understood that +the server side is responsible for driving the authentication of the +applicant. Notably, every request received by the client from the +server must be matched with a single response from the client to the +server. + +#$$#{applicant_client} Applicant <-> client + +Once the client is invoked, requests to the applicant entity are +initiated by the client application. General clients are able to make +the following requests directly to an applicant: + + echo text string + echo error text string + prompt with text string for echo'd text string input + prompt with text string for concealed text string input + +the nature of the interface provided by the client for the benefit of +the applicant entity is client specific and not defined by PAM. + +#$$#{client_agent} Client <-> agent + +In general, authentication schemes require more modes of exchange than +the four defined in the previous section (#{applicant_client}). This +provides a role for client-loadable agents. The client and agent +exchange binary-messages that can have one of the following forms: + + client -> agent + binary prompt agent expecting binary prompt reply to client + + agent -> client + binary prompt reply from agent to clients binary prompt + +Following the acceptance of a binary prompt by the agent, the agent +may attempt to exchange information with the client before returning +its binary prompt reply. Permitted exchanges are binary prompts of the +following types: + + agent -> client + set environment variable (A) + get environment variable (B) + echo text string (C) + echo error text string (D) + prompt for echo'd text string input (E) + prompt for concealed text string input (F) + +In response to these prompts, the client must legitimately respond +with a corresponding binary prompt reply. We list a complete set of +example exchanges, including each type of legitimate response (passes +and a single fail): + +## Type | Agent request | Client response ## +## --------------------------------------------------------------- ## +## (A) | {13;PAM_BPC_PUTENV;"FOO=BAR"} | {5;PAM_BPC_OK;} ## +## | {10;PAM_BPC_PUTENV;"FOO="} | {5;PAM_BPC_OK;} ## +## | {9;PAM_BPC_PUTENV;"FOO"} (*) | {5;PAM_BPC_OK;} ## +## | {9;PAM_BPC_PUTENV;"BAR"} (*) | {5;PAM_BPC_FAIL;} ## +## --------------------------------------------------------------- ## +## (B) | {10;PAM_BPC_GETENV;"TERM"} | {11;PAM_BPC_OK;"vt100"} ## +## | {9;PAM_BPC_GETENV;"FOO"} | {5;PAM_BPC_FAIL;} ## +## --------------------------------------------------------------- ## +## (C) | {12;PAM_BPC_TEXT;"hello!"} | {5;PAM_BPC_OK;} ## +## | {12;PAM_BPC_TEXT;"hello!"} | {5;PAM_BPC_FAIL;} ## +## --------------------------------------------------------------- ## +## (D) | {11;PAM_BPC_ERROR;"ouch!"} | {5;PAM_BPC_OK;} ## +## | {11;PAM_BPC_ERROR;"ouch!"} | {5;PAM_BPC_FAIL;} ## +## --------------------------------------------------------------- ## +## (E) | {13;PAM_BPC_PROMPT;"login: "} | {9;PAM_BPC_OK;"joe"} ## +## | {13;PAM_BPC_PROMPT;"login: "} | {6;PAM_BPC_OK;""} ## +## | {13;PAM_BPC_PROMPT;"login: "} | {5;PAM_BPC_FAIL;} ## +## --------------------------------------------------------------- ## +## (F) | {16;PAM_BPC_PASS;"password: "} | {9;PAM_BPC_OK;"XYZ"} ## +## | {16;PAM_BPC_PASS;"password: "} | {6;PAM_BPC_OK;""} ## +## | {16;PAM_BPC_PASS;"password: "} | {5;PAM_BPC_FAIL;} ## + +(*) Used to attempt the removal of a pre-existing environment +variable. + +#$$ Client <-> server + +Once the client has established a connection with the server (the +nature of the transport protocol is not specified by PAM), the server +is responsible for driving the authentication process. + +General servers can request the following from the client: + + (to be forwarded by the client to the applicant) + echo text string + echo error text string + prompt for echo'd text string response + prompt for concealed text string response + + (to be forwarded by the client to the appropriate agent) + binary prompt for a binary prompt response + +Client side agents are required to process binary prompts. The +agents' binary prompt responses are returned to the server. + +#$$ Server <-> module + +Modules drive the authentication process. The server provides a +conversation function with which it encapsulates module-generated +requests and exchanges them with the client. Every message sent by a +module should be acknowledged. + +General conversation functions can support the following five +conversation requests: + + echo text string + echo error string + prompt for echo'd text string response + prompt for concealed text string response + binary prompt for binary prompt response + +The server is responsible for redirecting these requests to the +client. + +#$ C API for application interfaces (client and server) + +#$$ Applicant <-> client + +No API is defined for this interface. The interface is considered to +be specific to the client application. Example applications include +terminal login, (X)windows login, machine file transfer applications. + +All that is important is that the client application is able to +present the applicant with textual output and to receive textual +input from the applicant. The forms of textual exchange are listed +in an earlier section (#{applicant_client}). Other methods of +data input/output are better suited to being handled via an +authentication agent. + +#$$ Client <-> agent + +The client makes use of a general API for communicating with +agents. The client is not required to communicate directly with +available agents, instead a layer of abstraction (in the form of a +library: libpamc) takes care of loading and maintaining communication +with all requested agents. This layer of abstraction will choose which +agents to interact with based on the content of binary prompts it +receives that have the control type PAM_BPC_SELECT. + +#$$$ Client <-> libpamc + +#$$$$ Compilation information + +The C-header file provided for client-agent abstraction is included +with the following source line: + + \#include <security/pam_client.h> + +The library providing the corresponding client-agent abstraction +functions is, libpamc. + + cc .... -lpamc + +#$$$$ Initializing libpamc + +The libpamc library is initialized with a call to the following +function: + + pamc_handle_t pamc_start(void); + +This function is responsible for configuring the library and +registering the location of available agents. The location of the +available agents on the system is implementation specific. + +pamc_start() function returns NULL on failure. Otherwise, the return +value is a pointer to an opaque data type which provides a handle to +the libpamc library. On systems where threading is available, the +libpamc libraray is thread safe provided a single (pamc_handler_t *) +is used by each thread. + +#$$$$ Client (Applicant) selection of agents + +For the purpose of applicant and client review of available agents, +the following function is provided. + + char **pamc_list_agents(pamc_handle_t pch); + +This returns a list of pointers to the agent_id's of the agents which +are available on the system. The list is terminated by a NULL pointer. +It is the clients responsibility to free this memory area by calling +free() on each agent id and the block of agent_id pointers in the +result. + +PAM represents a server-driven authentication model, so by default +any available agent may be invoked in the authentication process. + +#$$$$$ Client demands agent + +If the client requires that a specific authentication agent is +satisfied during the authentication process, then the client should +call the following function, immediately after obtaining a +pamc_handle_t from pamc_start(). + + int pamc_load(pamc_handle_t pch, const char *agent_id); + +agent_id is a PAM text string (see section #{agent_ids}) and is not +suffixed with a '/' delimiter. The return value for this function is: + + PAM_BPC_TRUE - agent located and loaded. + PAM_BPC_FALSE - agent is not available. + +Note, although the agent is loaded, no data is fed to it. The agent's +opportunity to inform the client that it does not trust the server is +when the agent is shutdown. + +#$$$$$ Client marks agent as unusable + +The applicant might prefer that a named agent is marked as not +available. To do this, the client would invoke the following function +immediately after obtaining a pamc_handle_t from pam_start(). + + int pamc_disable(pamc_handle_t pch, const char *agent_id); + +here agent_id is a PAM text string containing an agent_id (section +#{agent_ids}). + +The return value for this function is: + + PAM_BPC_TRUE - agent is disabled. This is the response + independent of whether the agent is locally + available. + + PAM_BPC_FALSE - agent cannot be disabled (this may be because + it has already been invoked). + +#$$$$ Allocating and manipulating binary prompts + +All conversation between an client and an agent takes place with +respect to binary prompts. A binary prompt (see section #{binary_prompt}), is +obtained, resized and deleted via the following C-macro: + + CREATION of a binary prompt with control X1 and data length Y1: + + pamc_bp_t prompt = NULL; + PAM_BP_RENEW(&prompt, X1, Y1); + + REPLACEMENT of a binary prompt with a control X2 and data length Y2: + + PAM_BP_RENEW(&prompt, X2, Y2); + + DELETION of a binary prompt (the referenced prompt is scrubbed): + + PAM_BP_RENEW(&prompt, 0, 0); + +Note, the PAM_BP_RENEW macro always overwrites any prompt that you +call it with, deleting and liberating the old contents in a secure +fashion. Also note that PAM_BP_RENEW, when returning a prompt of data +size Y1>0, will always append a '\0' byte to the end of the prompt (at +data offset Y1). It is thus, by definition, acceptable to treat the +data contents of a binary packet as a text string (see #{text_string}). + + FILLING a binary prompt from a memory pointer U1 from offset O1 of + length L1: + + PAM_BP_FILL(prompt, O1, L1, U1); + + the CONTROL type for the packet can be obtained as follows: + + control = PAM_PB_CONTROL(prompt); + + the LENGTH of a data within the prompt (_excluding_ its header + information) can be obtained as follows: + + length = PAM_BP_LENGTH(prompt); + + the total SIZE of the prompt (_including_ its header information) + can be obtained as follows: + + size = PAM_BP_SIZE(prompt); + + EXTRACTING data from a binary prompt from offset O2 of length L2 to + a memory pointer U2: + + PAM_BP_EXTRACT(prompt, O2, L2, U2); + + If you require direct access to the raw prompt DATA, you should use + the following macro: + + __u8 *raw_data = PAM_BP_DATA(prompt); + +#$$$$ Client<->agent conversations + +All exchanges of binary prompts with agents are handled with the +single function: + + int pamc_converse(pamc_handle_t *pch, pamc_bp_t *prompt_p); + +The return value for pamc_converse(...) is PAM_BPC_TRUE when there is +a response packet and PAM_BPC_FALSE when the client is unable to +handle the request represented by the original prompt. In this latter +case, *prompt_p is set to NULL. + +This function takes a binary prompt and returns a replacement binary +prompt that is either a request from an agent to be acted upon by the +client or the 'result' which should be forwarded to the server. In the +former case, the following macro will return 1 (PAM_BPC_TRUE) and in +all other cases, 0 (PAM_BPC_FALSE): + + PAM_BPC_FOR_CLIENT(/* pamc_bp_t */ prompt) + +Note, all non-NULL binary prompts returned by pamc_converse(...), are +terminated with a '\0', even when the full length of the prompt (as +returned by the agent) does not contain this delimiter. This is a +defined property of the PAM_BP_RENEW macro, and can be relied upon. + +Important security note: in certain implementations, agents are +implemented by executable binaries, which are transparently loaded and +managed by the PAM client library. To ensure there is never a leakage +of elevated privilege to an unprivileged agent, the client application +should go to some effort to lower its level of privilege. It remains +the responsibility of the applicant and the client to ensure that it +is not compromised by a rogue agent. + +#$$$$ Status of agents + + int pamc_status(pamc_handle_t *pch, pamc_bp_t *prompt_p); + +At any time, the client may ping all active agents for their status +(with a PAM_BPC_STATUS binary prompt). If any agent replies with +PAM_BPC_ABORT, the client is responsible for terminating the +connection to the server and then terminating all agents with a call +to pamc_end(). In such cases, the return value of pamc_status() is +PAM_BPC_FALSE. + +If the return status of pamc_status() is PAM_BPC_TRUE and *prompt_p is +non-NULL, then an agent is requesting access to a server module. + +XXX - how this information gets propagated to the server, and + ultimately to the server's module is yet to be determined. + +#$$$$ Termination of agents + +When closing the authentication session and severing the connection +between a client and a selection of agents, the following function is +used: + + int pamc_end(pamc_handle_t *pch); + +Following a call to pamc_end, the pamc_handle_t will be invalid. + +The return value for this function is one of the following: + + PAM_BPC_TRUE - all invoked agents are content with + authentication (the server is _not_ judged + _un_trustworthy by any agent) + + PAM_BPC_FALSE - one or more agents were unsatisfied at + being terminated. In general, the client + should terminate its connection to the + server and indicate to the applicant that + the server is untrusted. + +#$$$ libpamc <-> agents + +The agents are manipulated from within libpamc. Each agent is an +executable in its own right. This permits the agent to have access to +sensitive data not accessible directly from the client. The mode of +communication between libpamc and an agent is through a pair of +pipes. The agent reads binary prompts (section #{binary_prompt}) +through its standard input file descriptor and writes response (to the +server) binary prompts and instruction binary prompts (instructions +for the client) through its standard output file descriptor. + +#$$ Client <-> server + +This interface is concerned with the exchange of text and binary +prompts between the client application and the server application. No +API is provided for this as it is considered specific to the transport +protocol shared by the client and the server. + +#$$ Server <-> modules + +The server makes use of a general API for communicating with +modules. The client is not required to communicate directly with +available modules. By abstracting the authentication interface, it +becomes possible for the local administrator to make a run time +decision about the authentication method adopted by the server. + +#$$$ Functions and definitions available to servers and modules + +[This section will document the following functions + + pam_set_item() + pam_get_item() + pam_fail_delay(pam_handle_t *pamh, unsigned int micro_sec) + pam_get_env(pam_handle_t *pamh, const char *varname) + pam_strerror(pam_handle_t *pamh, int pam_errno) + +Event driven support (XXX work in progress) + + pam_register_event() - app or module associates an event poller/handler + pam_select_event() - query for any outstanding event and act on any +] + +#$$$ Server <-> libpam + +[This section will document the following pam_ calls: + + pam_start + pam_end + pam_authenticate (*) + pam_setcred + pam_acct_mgmt + pam_open_session + pam_close_session + pam_chauthtok (*) + +The asterisked functions may return PAM_INCOMPLETE. In such cases, the +application should be aware that the conversation function was called +and that it returned PAM_CONV_AGAIN to a module. The correct action +for the application to take in response to receiving PAM_INCOMPLETE, +is to acquire the replies so that the next time the conversation +function is called it will be able to provide the desired +responses. And then recall pam_authenticate (pam_chauthtok) with the +same arguments. Libpam will arrange that the module stack is resumed +from the module that returned before. This functionality is required +for programs whose user interface is maintained by an event loop. ] + +#$$$ libpam <-> modules + +[This section will document the following pam_ and pam_sm_ calls: + +functions provided by libpam + + pam_set_data + pam_get_data + +functions provided to libpam by each module + + groups: + AUTHENTICATION + pam_sm_authenticate + pam_sm_setcred + ACCOUNT + pam_sm_acct_mgmt + SESSION + pam_sm_open_session + pam_sm_close_session + AUTHENTICATION TOKEN MANAGEMENT + pam_sm_chauthtok +] + +#$$$ The conversation function + +The server application, as part of its initialization of libpam, +provides a conversation function for use by modules and libpam. The +purpose of the conversation function is to enable direct communication +to the applicant ultimately via the client and selected agents. + +[ this section will contain a definition for the conversation + function, the conversation structure (appdata etc), and legitimate + return codes for the application supplied function. + + PAM_SUCCESS - ok conversation completed + PAM_CONV_ERR - conversation failed + PAM_CONV_AGAIN - application needs control to complete conv + PAM_CONV_RECONSIDER - application believes module should check if + it still needs to converse for this info + ] + +#$ Security considerations + +This document is devoted to standardizing authentication +infrastructure: everything in this document has implications for +security. + +#$ Contact + +The email list for discussing issues related to this document is +<pam-list@redhat.com>. + +#$ References + +[#{OSF_RFC_PAM}] OSF RFC 86.0, "Unified Login with Pluggable Authentication + Modules (PAM)", October 1995 + +[#{PAM_STD_AGENTIDS}] Definitions for standard agents, "REGISTERED + AGENTS AND THEIR AGENT-ID'S", to be found here: + +## http://www.kernel.org/pub/linux/libs/pam/pre/doc/std-agent-ids.txt ## + +#$ Author's Address + +Andrew G. Morgan +Email: morgan@kernel.org + +## $Id$ ## diff --git a/doc/specs/parse_l.c b/doc/specs/parse_l.c new file mode 100644 index 0000000..abdf89e --- /dev/null +++ b/doc/specs/parse_l.c @@ -0,0 +1,1778 @@ + +#line 3 "parse_l.c" + +#define YY_INT_ALIGNED short int + +/* A lexical scanner generated by flex */ + +#define FLEX_SCANNER +#define YY_FLEX_MAJOR_VERSION 2 +#define YY_FLEX_MINOR_VERSION 5 +#define YY_FLEX_SUBMINOR_VERSION 37 +#if YY_FLEX_SUBMINOR_VERSION > 0 +#define FLEX_BETA +#endif + +/* First, we deal with platform-specific or compiler-specific issues. */ + +/* begin standard C headers. */ +#include <stdio.h> +#include <string.h> +#include <errno.h> +#include <stdlib.h> + +/* end standard C headers. */ + +/* flex integer type definitions */ + +#ifndef FLEXINT_H +#define FLEXINT_H + +/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */ + +#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L + +/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h, + * if you want the limit (max/min) macros for int types. + */ +#ifndef __STDC_LIMIT_MACROS +#define __STDC_LIMIT_MACROS 1 +#endif + +#include <inttypes.h> +typedef int8_t flex_int8_t; +typedef uint8_t flex_uint8_t; +typedef int16_t flex_int16_t; +typedef uint16_t flex_uint16_t; +typedef int32_t flex_int32_t; +typedef uint32_t flex_uint32_t; +#else +typedef signed char flex_int8_t; +typedef short int flex_int16_t; +typedef int flex_int32_t; +typedef unsigned char flex_uint8_t; +typedef unsigned short int flex_uint16_t; +typedef unsigned int flex_uint32_t; + +/* Limits of integral types. */ +#ifndef INT8_MIN +#define INT8_MIN (-128) +#endif +#ifndef INT16_MIN +#define INT16_MIN (-32767-1) +#endif +#ifndef INT32_MIN +#define INT32_MIN (-2147483647-1) +#endif +#ifndef INT8_MAX +#define INT8_MAX (127) +#endif +#ifndef INT16_MAX +#define INT16_MAX (32767) +#endif +#ifndef INT32_MAX +#define INT32_MAX (2147483647) +#endif +#ifndef UINT8_MAX +#define UINT8_MAX (255U) +#endif +#ifndef UINT16_MAX +#define UINT16_MAX (65535U) +#endif +#ifndef UINT32_MAX +#define UINT32_MAX (4294967295U) +#endif + +#endif /* ! C99 */ + +#endif /* ! FLEXINT_H */ + +#ifdef __cplusplus + +/* The "const" storage-class-modifier is valid. */ +#define YY_USE_CONST + +#else /* ! __cplusplus */ + +/* C99 requires __STDC__ to be defined as 1. */ +#if defined (__STDC__) + +#define YY_USE_CONST + +#endif /* defined (__STDC__) */ +#endif /* ! __cplusplus */ + +#ifdef YY_USE_CONST +#define yyconst const +#else +#define yyconst +#endif + +/* Returned upon end-of-file. */ +#define YY_NULL 0 + +/* Promotes a possibly negative, possibly signed char to an unsigned + * integer for use as an array index. If the signed char is negative, + * we want to instead treat it as an 8-bit unsigned char, hence the + * double cast. + */ +#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c) + +/* Enter a start condition. This macro really ought to take a parameter, + * but we do it the disgusting crufty way forced on us by the ()-less + * definition of BEGIN. + */ +#define BEGIN (yy_start) = 1 + 2 * + +/* Translate the current start state into a value that can be later handed + * to BEGIN to return to the state. The YYSTATE alias is for lex + * compatibility. + */ +#define YY_START (((yy_start) - 1) / 2) +#define YYSTATE YY_START + +/* Action number for EOF rule of a given start state. */ +#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1) + +/* Special action meaning "start processing a new file". */ +#define YY_NEW_FILE yyrestart(yyin ) + +#define YY_END_OF_BUFFER_CHAR 0 + +/* Size of default input buffer. */ +#ifndef YY_BUF_SIZE +#define YY_BUF_SIZE 16384 +#endif + +/* The state buf must be large enough to hold one state per character in the main buffer. + */ +#define YY_STATE_BUF_SIZE ((YY_BUF_SIZE + 2) * sizeof(yy_state_type)) + +#ifndef YY_TYPEDEF_YY_BUFFER_STATE +#define YY_TYPEDEF_YY_BUFFER_STATE +typedef struct yy_buffer_state *YY_BUFFER_STATE; +#endif + +#ifndef YY_TYPEDEF_YY_SIZE_T +#define YY_TYPEDEF_YY_SIZE_T +typedef size_t yy_size_t; +#endif + +extern yy_size_t yyleng; + +extern FILE *yyin, *yyout; + +#define EOB_ACT_CONTINUE_SCAN 0 +#define EOB_ACT_END_OF_FILE 1 +#define EOB_ACT_LAST_MATCH 2 + + #define YY_LESS_LINENO(n) + +/* Return all but the first "n" matched characters back to the input stream. */ +#define yyless(n) \ + do \ + { \ + /* Undo effects of setting up yytext. */ \ + int yyless_macro_arg = (n); \ + YY_LESS_LINENO(yyless_macro_arg);\ + *yy_cp = (yy_hold_char); \ + YY_RESTORE_YY_MORE_OFFSET \ + (yy_c_buf_p) = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \ + YY_DO_BEFORE_ACTION; /* set up yytext again */ \ + } \ + while ( 0 ) + +#define unput(c) yyunput( c, (yytext_ptr) ) + +#ifndef YY_STRUCT_YY_BUFFER_STATE +#define YY_STRUCT_YY_BUFFER_STATE +struct yy_buffer_state + { + FILE *yy_input_file; + + char *yy_ch_buf; /* input buffer */ + char *yy_buf_pos; /* current position in input buffer */ + + /* Size of input buffer in bytes, not including room for EOB + * characters. + */ + int yy_buf_size; + + /* Number of characters read into yy_ch_buf, not including EOB + * characters. + */ + int yy_n_chars; + + /* Whether we "own" the buffer - i.e., we know we created it, + * and can realloc() it to grow it, and should free() it to + * delete it. + */ + int yy_is_our_buffer; + + /* Whether this is an "interactive" input source; if so, and + * if we're using stdio for input, then we want to use getc() + * instead of fread(), to make sure we stop fetching input after + * each newline. + */ + int yy_is_interactive; + + /* Whether we're considered to be at the beginning of a line. + * If so, '^' rules will be active on the next match, otherwise + * not. + */ + int yy_at_bol; + + int yy_bs_lineno; /**< The line count. */ + int yy_bs_column; /**< The column count. */ + + /* Whether to try to fill the input buffer when we reach the + * end of it. + */ + int yy_fill_buffer; + + int yy_buffer_status; + +#define YY_BUFFER_NEW 0 +#define YY_BUFFER_NORMAL 1 + /* When an EOF's been seen but there's still some text to process + * then we mark the buffer as YY_EOF_PENDING, to indicate that we + * shouldn't try reading from the input source any more. We might + * still have a bunch of tokens to match, though, because of + * possible backing-up. + * + * When we actually see the EOF, we change the status to "new" + * (via yyrestart()), so that the user can continue scanning by + * just pointing yyin at a new input file. + */ +#define YY_BUFFER_EOF_PENDING 2 + + }; +#endif /* !YY_STRUCT_YY_BUFFER_STATE */ + +/* Stack of input buffers. */ +static size_t yy_buffer_stack_top = 0; /**< index of top of stack. */ +static size_t yy_buffer_stack_max = 0; /**< capacity of stack. */ +static YY_BUFFER_STATE * yy_buffer_stack = 0; /**< Stack as an array. */ + +/* We provide macros for accessing buffer states in case in the + * future we want to put the buffer states in a more general + * "scanner state". + * + * Returns the top of the stack, or NULL. + */ +#define YY_CURRENT_BUFFER ( (yy_buffer_stack) \ + ? (yy_buffer_stack)[(yy_buffer_stack_top)] \ + : NULL) + +/* Same as previous macro, but useful when we know that the buffer stack is not + * NULL or when we need an lvalue. For internal use only. + */ +#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)] + +/* yy_hold_char holds the character lost when yytext is formed. */ +static char yy_hold_char; +static int yy_n_chars; /* number of characters read into yy_ch_buf */ +yy_size_t yyleng; + +/* Points to current character in buffer. */ +static char *yy_c_buf_p = (char *) 0; +static int yy_init = 0; /* whether we need to initialize */ +static int yy_start = 0; /* start state number */ + +/* Flag which is used to allow yywrap()'s to do buffer switches + * instead of setting up a fresh yyin. A bit of a hack ... + */ +static int yy_did_buffer_switch_on_eof; + +void yyrestart (FILE *input_file ); +void yy_switch_to_buffer (YY_BUFFER_STATE new_buffer ); +YY_BUFFER_STATE yy_create_buffer (FILE *file,int size ); +void yy_delete_buffer (YY_BUFFER_STATE b ); +void yy_flush_buffer (YY_BUFFER_STATE b ); +void yypush_buffer_state (YY_BUFFER_STATE new_buffer ); +void yypop_buffer_state (void ); + +static void yyensure_buffer_stack (void ); +static void yy_load_buffer_state (void ); +static void yy_init_buffer (YY_BUFFER_STATE b,FILE *file ); + +#define YY_FLUSH_BUFFER yy_flush_buffer(YY_CURRENT_BUFFER ) + +YY_BUFFER_STATE yy_scan_buffer (char *base,yy_size_t size ); +YY_BUFFER_STATE yy_scan_string (yyconst char *yy_str ); +YY_BUFFER_STATE yy_scan_bytes (yyconst char *bytes,yy_size_t len ); + +void *yyalloc (yy_size_t ); +void *yyrealloc (void *,yy_size_t ); +void yyfree (void * ); + +#define yy_new_buffer yy_create_buffer + +#define yy_set_interactive(is_interactive) \ + { \ + if ( ! YY_CURRENT_BUFFER ){ \ + yyensure_buffer_stack (); \ + YY_CURRENT_BUFFER_LVALUE = \ + yy_create_buffer(yyin,YY_BUF_SIZE ); \ + } \ + YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \ + } + +#define yy_set_bol(at_bol) \ + { \ + if ( ! YY_CURRENT_BUFFER ){\ + yyensure_buffer_stack (); \ + YY_CURRENT_BUFFER_LVALUE = \ + yy_create_buffer(yyin,YY_BUF_SIZE ); \ + } \ + YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \ + } + +#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol) + +/* Begin user sect3 */ + +#define yywrap() 1 +#define YY_SKIP_YYWRAP + +typedef unsigned char YY_CHAR; + +FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0; + +typedef int yy_state_type; + +extern int yylineno; + +int yylineno = 1; + +extern char *yytext; +#define yytext_ptr yytext + +static yy_state_type yy_get_previous_state (void ); +static yy_state_type yy_try_NUL_trans (yy_state_type current_state ); +static int yy_get_next_buffer (void ); +static void yy_fatal_error (yyconst char msg[] ); + +/* Done after the current pattern has been matched and before the + * corresponding action - sets up yytext. + */ +#define YY_DO_BEFORE_ACTION \ + (yytext_ptr) = yy_bp; \ + yyleng = (int) (yy_cp - yy_bp); \ + (yy_hold_char) = *yy_cp; \ + *yy_cp = '\0'; \ + (yy_c_buf_p) = yy_cp; + +#define YY_NUM_RULES 8 +#define YY_END_OF_BUFFER 9 +/* This struct is not used in this scanner, + but its presence is necessary. */ +struct yy_trans_info + { + flex_int32_t yy_verify; + flex_int32_t yy_nxt; + }; +static yyconst flex_int16_t yy_accept[19] = + { 0, + 0, 0, 9, 6, 7, 3, 6, 4, 1, 0, + 5, 0, 1, 0, 1, 0, 2, 0 + } ; + +static yyconst flex_int32_t yy_ec[256] = + { 0, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 3, 4, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, + 6, 1, 1, 1, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 1, 8, 1, 1, 9, 1, 7, 7, 7, 7, + + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 10, 1, 11, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1 + } ; + +static yyconst flex_int32_t yy_meta[12] = + { 0, + 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, + 2 + } ; + +static yyconst flex_int16_t yy_base[21] = + { 0, + 0, 7, 21, 30, 30, 13, 17, 30, 20, 12, + 30, 13, 10, 2, 7, 0, 30, 30, 27, 2 + } ; + +static yyconst flex_int16_t yy_def[21] = + { 0, + 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, + 18, 18, 9, 20, 18, 20, 18, 0, 18, 18 + } ; + +static yyconst flex_int16_t yy_nxt[42] = + { 0, + 18, 5, 6, 16, 18, 18, 18, 7, 5, 6, + 17, 15, 17, 18, 7, 8, 9, 15, 14, 11, + 18, 18, 10, 9, 18, 12, 13, 4, 4, 3, + 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, + 18 + } ; + +static yyconst flex_int16_t yy_chk[42] = + { 0, + 0, 1, 1, 20, 0, 0, 0, 1, 2, 2, + 16, 15, 14, 13, 2, 6, 6, 12, 10, 7, + 3, 0, 6, 9, 0, 9, 9, 19, 19, 18, + 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, + 18 + } ; + +static yy_state_type yy_last_accepting_state; +static char *yy_last_accepting_cpos; + +extern int yy_flex_debug; +int yy_flex_debug = 0; + +/* The intent behind this definition is that it'll catch + * any uses of REJECT which flex missed. + */ +#define REJECT reject_used_but_not_detected +#define yymore() yymore_used_but_not_detected +#define YY_MORE_ADJ 0 +#define YY_RESTORE_YY_MORE_OFFSET +char *yytext; +#line 1 "parse_l.l" +#line 2 "parse_l.l" +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include <stdio.h> + +#include "parse_y.h" +#line 473 "parse_l.c" + +#define INITIAL 0 + +#ifndef YY_NO_UNISTD_H +/* Special case for "unistd.h", since it is non-ANSI. We include it way + * down here because we want the user's section 1 to have been scanned first. + * The user has a chance to override it with an option. + */ +#include <unistd.h> +#endif + +#ifndef YY_EXTRA_TYPE +#define YY_EXTRA_TYPE void * +#endif + +static int yy_init_globals (void ); + +/* Accessor methods to globals. + These are made visible to non-reentrant scanners for convenience. */ + +int yylex_destroy (void ); + +int yyget_debug (void ); + +void yyset_debug (int debug_flag ); + +YY_EXTRA_TYPE yyget_extra (void ); + +void yyset_extra (YY_EXTRA_TYPE user_defined ); + +FILE *yyget_in (void ); + +void yyset_in (FILE * in_str ); + +FILE *yyget_out (void ); + +void yyset_out (FILE * out_str ); + +yy_size_t yyget_leng (void ); + +char *yyget_text (void ); + +int yyget_lineno (void ); + +void yyset_lineno (int line_number ); + +/* Macros after this point can all be overridden by user definitions in + * section 1. + */ + +#ifndef YY_SKIP_YYWRAP +#ifdef __cplusplus +extern "C" int yywrap (void ); +#else +extern int yywrap (void ); +#endif +#endif + + static void yyunput (int c,char *buf_ptr ); + +#ifndef yytext_ptr +static void yy_flex_strncpy (char *,yyconst char *,int ); +#endif + +#ifdef YY_NEED_STRLEN +static int yy_flex_strlen (yyconst char * ); +#endif + +#ifndef YY_NO_INPUT + +#ifdef __cplusplus +static int yyinput (void ); +#else +static int input (void ); +#endif + +#endif + +/* Amount of stuff to slurp up with each read. */ +#ifndef YY_READ_BUF_SIZE +#define YY_READ_BUF_SIZE 8192 +#endif + +/* Copy whatever the last rule matched to the standard output. */ +#ifndef ECHO +/* This used to be an fputs(), but since the string might contain NUL's, + * we now use fwrite(). + */ +#define ECHO do { if (fwrite( yytext, yyleng, 1, yyout )) {} } while (0) +#endif + +/* Gets input and stuffs it into "buf". number of characters read, or YY_NULL, + * is returned in "result". + */ +#ifndef YY_INPUT +#define YY_INPUT(buf,result,max_size) \ + if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \ + { \ + int c = '*'; \ + size_t n; \ + for ( n = 0; n < max_size && \ + (c = getc( yyin )) != EOF && c != '\n'; ++n ) \ + buf[n] = (char) c; \ + if ( c == '\n' ) \ + buf[n++] = (char) c; \ + if ( c == EOF && ferror( yyin ) ) \ + YY_FATAL_ERROR( "input in flex scanner failed" ); \ + result = n; \ + } \ + else \ + { \ + errno=0; \ + while ( (result = (int) fread(buf, 1, max_size, yyin))==0 && ferror(yyin)) \ + { \ + if( errno != EINTR) \ + { \ + YY_FATAL_ERROR( "input in flex scanner failed" ); \ + break; \ + } \ + errno=0; \ + clearerr(yyin); \ + } \ + }\ +\ + +#endif + +/* No semi-colon after return; correct usage is to write "yyterminate();" - + * we don't want an extra ';' after the "return" because that will cause + * some compilers to complain about unreachable statements. + */ +#ifndef yyterminate +#define yyterminate() return YY_NULL +#endif + +/* Number of entries by which start-condition stack grows. */ +#ifndef YY_START_STACK_INCR +#define YY_START_STACK_INCR 25 +#endif + +/* Report a fatal error. */ +#ifndef YY_FATAL_ERROR +#define YY_FATAL_ERROR(msg) yy_fatal_error( msg ) +#endif + +/* end tables serialization structures and prototypes */ + +/* Default declaration of generated scanner - a define so the user can + * easily add parameters. + */ +#ifndef YY_DECL +#define YY_DECL_IS_OURS 1 + +extern int yylex (void); + +#define YY_DECL int yylex (void) +#endif /* !YY_DECL */ + +/* Code executed at the beginning of each rule, after yytext and yyleng + * have been set up. + */ +#ifndef YY_USER_ACTION +#define YY_USER_ACTION +#endif + +/* Code executed at the end of each rule. */ +#ifndef YY_BREAK +#define YY_BREAK break; +#endif + +#define YY_RULE_SETUP \ + YY_USER_ACTION + +/** The main scanner function which does all the work. + */ +YY_DECL +{ + register yy_state_type yy_current_state; + register char *yy_cp, *yy_bp; + register int yy_act; + +#line 12 "parse_l.l" + + +#line 658 "parse_l.c" + + if ( !(yy_init) ) + { + (yy_init) = 1; + +#ifdef YY_USER_INIT + YY_USER_INIT; +#endif + + if ( ! (yy_start) ) + (yy_start) = 1; /* first start state */ + + if ( ! yyin ) + yyin = stdin; + + if ( ! yyout ) + yyout = stdout; + + if ( ! YY_CURRENT_BUFFER ) { + yyensure_buffer_stack (); + YY_CURRENT_BUFFER_LVALUE = + yy_create_buffer(yyin,YY_BUF_SIZE ); + } + + yy_load_buffer_state( ); + } + + while ( 1 ) /* loops until end-of-file is reached */ + { + yy_cp = (yy_c_buf_p); + + /* Support of yytext. */ + *yy_cp = (yy_hold_char); + + /* yy_bp points to the position in yy_ch_buf of the start of + * the current run. + */ + yy_bp = yy_cp; + + yy_current_state = (yy_start); +yy_match: + do + { + register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)]; + if ( yy_accept[yy_current_state] ) + { + (yy_last_accepting_state) = yy_current_state; + (yy_last_accepting_cpos) = yy_cp; + } + while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) + { + yy_current_state = (int) yy_def[yy_current_state]; + if ( yy_current_state >= 19 ) + yy_c = yy_meta[(unsigned int) yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + (flex_int16_t) yy_c]; + ++yy_cp; + } + while ( yy_base[yy_current_state] != 30 ); + +yy_find_action: + yy_act = yy_accept[yy_current_state]; + if ( yy_act == 0 ) + { /* have to back up */ + yy_cp = (yy_last_accepting_cpos); + yy_current_state = (yy_last_accepting_state); + yy_act = yy_accept[yy_current_state]; + } + + YY_DO_BEFORE_ACTION; + +do_action: /* This label is used only to access EOF actions. */ + + switch ( yy_act ) + { /* beginning of action switch */ + case 0: /* must back up */ + /* undo the effects of YY_DO_BEFORE_ACTION */ + *yy_cp = (yy_hold_char); + yy_cp = (yy_last_accepting_cpos); + yy_current_state = (yy_last_accepting_state); + goto yy_find_action; + +case 1: +YY_RULE_SETUP +#line 14 "parse_l.l" +return NEW_COUNTER; + YY_BREAK +case 2: +YY_RULE_SETUP +#line 15 "parse_l.l" +return LABEL; + YY_BREAK +case 3: +YY_RULE_SETUP +#line 16 "parse_l.l" +return NO_INDENT; + YY_BREAK +case 4: +YY_RULE_SETUP +#line 17 "parse_l.l" +return RIGHT; + YY_BREAK +case 5: +YY_RULE_SETUP +#line 18 "parse_l.l" +return HASH; + YY_BREAK +case 6: +YY_RULE_SETUP +#line 19 "parse_l.l" +return CHAR; + YY_BREAK +case 7: +/* rule 7 can match eol */ +YY_RULE_SETUP +#line 20 "parse_l.l" +return NEWLINE; + YY_BREAK +case 8: +YY_RULE_SETUP +#line 22 "parse_l.l" +ECHO; + YY_BREAK +#line 782 "parse_l.c" +case YY_STATE_EOF(INITIAL): + yyterminate(); + + case YY_END_OF_BUFFER: + { + /* Amount of text matched not including the EOB char. */ + int yy_amount_of_matched_text = (int) (yy_cp - (yytext_ptr)) - 1; + + /* Undo the effects of YY_DO_BEFORE_ACTION. */ + *yy_cp = (yy_hold_char); + YY_RESTORE_YY_MORE_OFFSET + + if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW ) + { + /* We're scanning a new file or input source. It's + * possible that this happened because the user + * just pointed yyin at a new source and called + * yylex(). If so, then we have to assure + * consistency between YY_CURRENT_BUFFER and our + * globals. Here is the right place to do so, because + * this is the first action (other than possibly a + * back-up) that will match for the new input source. + */ + (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars; + YY_CURRENT_BUFFER_LVALUE->yy_input_file = yyin; + YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL; + } + + /* Note that here we test for yy_c_buf_p "<=" to the position + * of the first EOB in the buffer, since yy_c_buf_p will + * already have been incremented past the NUL character + * (since all states make transitions on EOB to the + * end-of-buffer state). Contrast this with the test + * in input(). + */ + if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] ) + { /* This was really a NUL. */ + yy_state_type yy_next_state; + + (yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text; + + yy_current_state = yy_get_previous_state( ); + + /* Okay, we're now positioned to make the NUL + * transition. We couldn't have + * yy_get_previous_state() go ahead and do it + * for us because it doesn't know how to deal + * with the possibility of jamming (and we don't + * want to build jamming into it because then it + * will run more slowly). + */ + + yy_next_state = yy_try_NUL_trans( yy_current_state ); + + yy_bp = (yytext_ptr) + YY_MORE_ADJ; + + if ( yy_next_state ) + { + /* Consume the NUL. */ + yy_cp = ++(yy_c_buf_p); + yy_current_state = yy_next_state; + goto yy_match; + } + + else + { + yy_cp = (yy_c_buf_p); + goto yy_find_action; + } + } + + else switch ( yy_get_next_buffer( ) ) + { + case EOB_ACT_END_OF_FILE: + { + (yy_did_buffer_switch_on_eof) = 0; + + if ( yywrap( ) ) + { + /* Note: because we've taken care in + * yy_get_next_buffer() to have set up + * yytext, we can now set up + * yy_c_buf_p so that if some total + * hoser (like flex itself) wants to + * call the scanner after we return the + * YY_NULL, it'll still work - another + * YY_NULL will get returned. + */ + (yy_c_buf_p) = (yytext_ptr) + YY_MORE_ADJ; + + yy_act = YY_STATE_EOF(YY_START); + goto do_action; + } + + else + { + if ( ! (yy_did_buffer_switch_on_eof) ) + YY_NEW_FILE; + } + break; + } + + case EOB_ACT_CONTINUE_SCAN: + (yy_c_buf_p) = + (yytext_ptr) + yy_amount_of_matched_text; + + yy_current_state = yy_get_previous_state( ); + + yy_cp = (yy_c_buf_p); + yy_bp = (yytext_ptr) + YY_MORE_ADJ; + goto yy_match; + + case EOB_ACT_LAST_MATCH: + (yy_c_buf_p) = + &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)]; + + yy_current_state = yy_get_previous_state( ); + + yy_cp = (yy_c_buf_p); + yy_bp = (yytext_ptr) + YY_MORE_ADJ; + goto yy_find_action; + } + break; + } + + default: + YY_FATAL_ERROR( + "fatal flex scanner internal error--no action found" ); + } /* end of action switch */ + } /* end of scanning one token */ +} /* end of yylex */ + +/* yy_get_next_buffer - try to read in a new buffer + * + * Returns a code representing an action: + * EOB_ACT_LAST_MATCH - + * EOB_ACT_CONTINUE_SCAN - continue scanning from current position + * EOB_ACT_END_OF_FILE - end of file + */ +static int yy_get_next_buffer (void) +{ + register char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf; + register char *source = (yytext_ptr); + register int number_to_move, i; + int ret_val; + + if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] ) + YY_FATAL_ERROR( + "fatal flex scanner internal error--end of buffer missed" ); + + if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 ) + { /* Don't try to fill the buffer, so this is an EOF. */ + if ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 ) + { + /* We matched a single character, the EOB, so + * treat this as a final EOF. + */ + return EOB_ACT_END_OF_FILE; + } + + else + { + /* We matched some text prior to the EOB, first + * process it. + */ + return EOB_ACT_LAST_MATCH; + } + } + + /* Try to read more data. */ + + /* First move last chars to start of buffer. */ + number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr)) - 1; + + for ( i = 0; i < number_to_move; ++i ) + *(dest++) = *(source++); + + if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING ) + /* don't do the read, it's not guaranteed to return an EOF, + * just force an EOF + */ + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = 0; + + else + { + int num_to_read = + YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1; + + while ( num_to_read <= 0 ) + { /* Not enough room in the buffer - grow it. */ + + /* just a shorter name for the current buffer */ + YY_BUFFER_STATE b = YY_CURRENT_BUFFER_LVALUE; + + int yy_c_buf_p_offset = + (int) ((yy_c_buf_p) - b->yy_ch_buf); + + if ( b->yy_is_our_buffer ) + { + yy_size_t new_size = b->yy_buf_size * 2; + + if ( new_size <= 0 ) + b->yy_buf_size += b->yy_buf_size / 8; + else + b->yy_buf_size *= 2; + + b->yy_ch_buf = (char *) + /* Include room in for 2 EOB chars. */ + yyrealloc((void *) b->yy_ch_buf,b->yy_buf_size + 2 ); + } + else + /* Can't grow it, we don't own it. */ + b->yy_ch_buf = 0; + + if ( ! b->yy_ch_buf ) + YY_FATAL_ERROR( + "fatal error - scanner input buffer overflow" ); + + (yy_c_buf_p) = &b->yy_ch_buf[yy_c_buf_p_offset]; + + num_to_read = (int) YY_CURRENT_BUFFER_LVALUE->yy_buf_size - + number_to_move - 1; + + } + + if ( num_to_read > YY_READ_BUF_SIZE ) + num_to_read = YY_READ_BUF_SIZE; + + /* Read in more data. */ + YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]), + (yy_n_chars), num_to_read ); + + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); + } + + if ( (yy_n_chars) == 0 ) + { + if ( number_to_move == YY_MORE_ADJ ) + { + ret_val = EOB_ACT_END_OF_FILE; + yyrestart(yyin ); + } + + else + { + ret_val = EOB_ACT_LAST_MATCH; + YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = + YY_BUFFER_EOF_PENDING; + } + } + + else + ret_val = EOB_ACT_CONTINUE_SCAN; + + if ((int) ((yy_n_chars) + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) { + /* Extend the array by 50%, plus the number we really need. */ + int new_size = (yy_n_chars) + number_to_move + ((yy_n_chars) >> 1); + YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) yyrealloc((void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf,new_size ); + if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf ) + YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" ); + } + + (yy_n_chars) += number_to_move; + YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] = YY_END_OF_BUFFER_CHAR; + YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] = YY_END_OF_BUFFER_CHAR; + + (yytext_ptr) = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0]; + + return ret_val; +} + +/* yy_get_previous_state - get the state just before the EOB char was reached */ + + static yy_state_type yy_get_previous_state (void) +{ + register yy_state_type yy_current_state; + register char *yy_cp; + + yy_current_state = (yy_start); + + for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp ) + { + register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1); + if ( yy_accept[yy_current_state] ) + { + (yy_last_accepting_state) = yy_current_state; + (yy_last_accepting_cpos) = yy_cp; + } + while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) + { + yy_current_state = (int) yy_def[yy_current_state]; + if ( yy_current_state >= 19 ) + yy_c = yy_meta[(unsigned int) yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + (flex_int16_t) yy_c]; + } + + return yy_current_state; +} + +/* yy_try_NUL_trans - try to make a transition on the NUL character + * + * synopsis + * next_state = yy_try_NUL_trans( current_state ); + */ + static yy_state_type yy_try_NUL_trans (yy_state_type yy_current_state ) +{ + register int yy_is_jam; + register char *yy_cp = (yy_c_buf_p); + + register YY_CHAR yy_c = 1; + if ( yy_accept[yy_current_state] ) + { + (yy_last_accepting_state) = yy_current_state; + (yy_last_accepting_cpos) = yy_cp; + } + while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) + { + yy_current_state = (int) yy_def[yy_current_state]; + if ( yy_current_state >= 19 ) + yy_c = yy_meta[(unsigned int) yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + (flex_int16_t) yy_c]; + yy_is_jam = (yy_current_state == 18); + + return yy_is_jam ? 0 : yy_current_state; +} + + static void yyunput (int c, register char * yy_bp ) +{ + register char *yy_cp; + + yy_cp = (yy_c_buf_p); + + /* undo effects of setting up yytext */ + *yy_cp = (yy_hold_char); + + if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 ) + { /* need to shift things up to make room */ + /* +2 for EOB chars. */ + register int number_to_move = (yy_n_chars) + 2; + register char *dest = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[ + YY_CURRENT_BUFFER_LVALUE->yy_buf_size + 2]; + register char *source = + &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]; + + while ( source > YY_CURRENT_BUFFER_LVALUE->yy_ch_buf ) + *--dest = *--source; + + yy_cp += (int) (dest - source); + yy_bp += (int) (dest - source); + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = + (yy_n_chars) = (int) YY_CURRENT_BUFFER_LVALUE->yy_buf_size; + + if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 ) + YY_FATAL_ERROR( "flex scanner push-back overflow" ); + } + + *--yy_cp = (char) c; + + (yytext_ptr) = yy_bp; + (yy_hold_char) = *yy_cp; + (yy_c_buf_p) = yy_cp; +} + +#ifndef YY_NO_INPUT +#ifdef __cplusplus + static int yyinput (void) +#else + static int input (void) +#endif + +{ + int c; + + *(yy_c_buf_p) = (yy_hold_char); + + if ( *(yy_c_buf_p) == YY_END_OF_BUFFER_CHAR ) + { + /* yy_c_buf_p now points to the character we want to return. + * If this occurs *before* the EOB characters, then it's a + * valid NUL; if not, then we've hit the end of the buffer. + */ + if ( (yy_c_buf_p) < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] ) + /* This was really a NUL. */ + *(yy_c_buf_p) = '\0'; + + else + { /* need more input */ + yy_size_t offset = (yy_c_buf_p) - (yytext_ptr); + ++(yy_c_buf_p); + + switch ( yy_get_next_buffer( ) ) + { + case EOB_ACT_LAST_MATCH: + /* This happens because yy_g_n_b() + * sees that we've accumulated a + * token and flags that we need to + * try matching the token before + * proceeding. But for input(), + * there's no matching to consider. + * So convert the EOB_ACT_LAST_MATCH + * to EOB_ACT_END_OF_FILE. + */ + + /* Reset buffer status. */ + yyrestart(yyin ); + + /*FALLTHROUGH*/ + + case EOB_ACT_END_OF_FILE: + { + if ( yywrap( ) ) + return EOF; + + if ( ! (yy_did_buffer_switch_on_eof) ) + YY_NEW_FILE; +#ifdef __cplusplus + return yyinput(); +#else + return input(); +#endif + } + + case EOB_ACT_CONTINUE_SCAN: + (yy_c_buf_p) = (yytext_ptr) + offset; + break; + } + } + } + + c = *(unsigned char *) (yy_c_buf_p); /* cast for 8-bit char's */ + *(yy_c_buf_p) = '\0'; /* preserve yytext */ + (yy_hold_char) = *++(yy_c_buf_p); + + return c; +} +#endif /* ifndef YY_NO_INPUT */ + +/** Immediately switch to a different input stream. + * @param input_file A readable stream. + * + * @note This function does not reset the start condition to @c INITIAL . + */ + void yyrestart (FILE * input_file ) +{ + + if ( ! YY_CURRENT_BUFFER ){ + yyensure_buffer_stack (); + YY_CURRENT_BUFFER_LVALUE = + yy_create_buffer(yyin,YY_BUF_SIZE ); + } + + yy_init_buffer(YY_CURRENT_BUFFER,input_file ); + yy_load_buffer_state( ); +} + +/** Switch to a different input buffer. + * @param new_buffer The new input buffer. + * + */ + void yy_switch_to_buffer (YY_BUFFER_STATE new_buffer ) +{ + + /* TODO. We should be able to replace this entire function body + * with + * yypop_buffer_state(); + * yypush_buffer_state(new_buffer); + */ + yyensure_buffer_stack (); + if ( YY_CURRENT_BUFFER == new_buffer ) + return; + + if ( YY_CURRENT_BUFFER ) + { + /* Flush out information for old buffer. */ + *(yy_c_buf_p) = (yy_hold_char); + YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p); + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); + } + + YY_CURRENT_BUFFER_LVALUE = new_buffer; + yy_load_buffer_state( ); + + /* We don't actually know whether we did this switch during + * EOF (yywrap()) processing, but the only time this flag + * is looked at is after yywrap() is called, so it's safe + * to go ahead and always set it. + */ + (yy_did_buffer_switch_on_eof) = 1; +} + +static void yy_load_buffer_state (void) +{ + (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars; + (yytext_ptr) = (yy_c_buf_p) = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos; + yyin = YY_CURRENT_BUFFER_LVALUE->yy_input_file; + (yy_hold_char) = *(yy_c_buf_p); +} + +/** Allocate and initialize an input buffer state. + * @param file A readable stream. + * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE. + * + * @return the allocated buffer state. + */ + YY_BUFFER_STATE yy_create_buffer (FILE * file, int size ) +{ + YY_BUFFER_STATE b; + + b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state ) ); + if ( ! b ) + YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); + + b->yy_buf_size = size; + + /* yy_ch_buf has to be 2 characters longer than the size given because + * we need to put in 2 end-of-buffer characters. + */ + b->yy_ch_buf = (char *) yyalloc(b->yy_buf_size + 2 ); + if ( ! b->yy_ch_buf ) + YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); + + b->yy_is_our_buffer = 1; + + yy_init_buffer(b,file ); + + return b; +} + +/** Destroy the buffer. + * @param b a buffer created with yy_create_buffer() + * + */ + void yy_delete_buffer (YY_BUFFER_STATE b ) +{ + + if ( ! b ) + return; + + if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */ + YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0; + + if ( b->yy_is_our_buffer ) + yyfree((void *) b->yy_ch_buf ); + + yyfree((void *) b ); +} + +/* Initializes or reinitializes a buffer. + * This function is sometimes called more than once on the same buffer, + * such as during a yyrestart() or at EOF. + */ + static void yy_init_buffer (YY_BUFFER_STATE b, FILE * file ) + +{ + int oerrno = errno; + + yy_flush_buffer(b ); + + b->yy_input_file = file; + b->yy_fill_buffer = 1; + + /* If b is the current buffer, then yy_init_buffer was _probably_ + * called from yyrestart() or through yy_get_next_buffer. + * In that case, we don't want to reset the lineno or column. + */ + if (b != YY_CURRENT_BUFFER){ + b->yy_bs_lineno = 1; + b->yy_bs_column = 0; + } + + b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0; + + errno = oerrno; +} + +/** Discard all buffered characters. On the next scan, YY_INPUT will be called. + * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER. + * + */ + void yy_flush_buffer (YY_BUFFER_STATE b ) +{ + if ( ! b ) + return; + + b->yy_n_chars = 0; + + /* We always need two end-of-buffer characters. The first causes + * a transition to the end-of-buffer state. The second causes + * a jam in that state. + */ + b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR; + b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR; + + b->yy_buf_pos = &b->yy_ch_buf[0]; + + b->yy_at_bol = 1; + b->yy_buffer_status = YY_BUFFER_NEW; + + if ( b == YY_CURRENT_BUFFER ) + yy_load_buffer_state( ); +} + +/** Pushes the new state onto the stack. The new state becomes + * the current state. This function will allocate the stack + * if necessary. + * @param new_buffer The new state. + * + */ +void yypush_buffer_state (YY_BUFFER_STATE new_buffer ) +{ + if (new_buffer == NULL) + return; + + yyensure_buffer_stack(); + + /* This block is copied from yy_switch_to_buffer. */ + if ( YY_CURRENT_BUFFER ) + { + /* Flush out information for old buffer. */ + *(yy_c_buf_p) = (yy_hold_char); + YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p); + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); + } + + /* Only push if top exists. Otherwise, replace top. */ + if (YY_CURRENT_BUFFER) + (yy_buffer_stack_top)++; + YY_CURRENT_BUFFER_LVALUE = new_buffer; + + /* copied from yy_switch_to_buffer. */ + yy_load_buffer_state( ); + (yy_did_buffer_switch_on_eof) = 1; +} + +/** Removes and deletes the top of the stack, if present. + * The next element becomes the new top. + * + */ +void yypop_buffer_state (void) +{ + if (!YY_CURRENT_BUFFER) + return; + + yy_delete_buffer(YY_CURRENT_BUFFER ); + YY_CURRENT_BUFFER_LVALUE = NULL; + if ((yy_buffer_stack_top) > 0) + --(yy_buffer_stack_top); + + if (YY_CURRENT_BUFFER) { + yy_load_buffer_state( ); + (yy_did_buffer_switch_on_eof) = 1; + } +} + +/* Allocates the stack if it does not exist. + * Guarantees space for at least one push. + */ +static void yyensure_buffer_stack (void) +{ + yy_size_t num_to_alloc; + + if (!(yy_buffer_stack)) { + + /* First allocation is just for 2 elements, since we don't know if this + * scanner will even need a stack. We use 2 instead of 1 to avoid an + * immediate realloc on the next call. + */ + num_to_alloc = 1; + (yy_buffer_stack) = (struct yy_buffer_state**)yyalloc + (num_to_alloc * sizeof(struct yy_buffer_state*) + ); + if ( ! (yy_buffer_stack) ) + YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" ); + + memset((yy_buffer_stack), 0, num_to_alloc * sizeof(struct yy_buffer_state*)); + + (yy_buffer_stack_max) = num_to_alloc; + (yy_buffer_stack_top) = 0; + return; + } + + if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){ + + /* Increase the buffer to prepare for a possible push. */ + int grow_size = 8 /* arbitrary grow size */; + + num_to_alloc = (yy_buffer_stack_max) + grow_size; + (yy_buffer_stack) = (struct yy_buffer_state**)yyrealloc + ((yy_buffer_stack), + num_to_alloc * sizeof(struct yy_buffer_state*) + ); + if ( ! (yy_buffer_stack) ) + YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" ); + + /* zero only the new slots.*/ + memset((yy_buffer_stack) + (yy_buffer_stack_max), 0, grow_size * sizeof(struct yy_buffer_state*)); + (yy_buffer_stack_max) = num_to_alloc; + } +} + +/** Setup the input buffer state to scan directly from a user-specified character buffer. + * @param base the character buffer + * @param size the size in bytes of the character buffer + * + * @return the newly allocated buffer state object. + */ +YY_BUFFER_STATE yy_scan_buffer (char * base, yy_size_t size ) +{ + YY_BUFFER_STATE b; + + if ( size < 2 || + base[size-2] != YY_END_OF_BUFFER_CHAR || + base[size-1] != YY_END_OF_BUFFER_CHAR ) + /* They forgot to leave room for the EOB's. */ + return 0; + + b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state ) ); + if ( ! b ) + YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" ); + + b->yy_buf_size = size - 2; /* "- 2" to take care of EOB's */ + b->yy_buf_pos = b->yy_ch_buf = base; + b->yy_is_our_buffer = 0; + b->yy_input_file = 0; + b->yy_n_chars = b->yy_buf_size; + b->yy_is_interactive = 0; + b->yy_at_bol = 1; + b->yy_fill_buffer = 0; + b->yy_buffer_status = YY_BUFFER_NEW; + + yy_switch_to_buffer(b ); + + return b; +} + +/** Setup the input buffer state to scan a string. The next call to yylex() will + * scan from a @e copy of @a str. + * @param yystr a NUL-terminated string to scan + * + * @return the newly allocated buffer state object. + * @note If you want to scan bytes that may contain NUL values, then use + * yy_scan_bytes() instead. + */ +YY_BUFFER_STATE yy_scan_string (yyconst char * yystr ) +{ + + return yy_scan_bytes(yystr,(int) strlen(yystr) ); +} + +/** Setup the input buffer state to scan the given bytes. The next call to yylex() will + * scan from a @e copy of @a bytes. + * @param yybytes the byte buffer to scan + * @param _yybytes_len the number of bytes in the buffer pointed to by @a bytes. + * + * @return the newly allocated buffer state object. + */ +YY_BUFFER_STATE yy_scan_bytes (yyconst char * yybytes, yy_size_t _yybytes_len ) +{ + YY_BUFFER_STATE b; + char *buf; + yy_size_t n; + int i; + + /* Get memory for full buffer, including space for trailing EOB's. */ + n = (yy_size_t) _yybytes_len + 2; + buf = (char *) yyalloc(n ); + if ( ! buf ) + YY_FATAL_ERROR( "out of dynamic memory in yy_scan_bytes()" ); + + for ( i = 0; i < _yybytes_len; ++i ) + buf[i] = yybytes[i]; + + buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR; + + b = yy_scan_buffer(buf,n ); + if ( ! b ) + YY_FATAL_ERROR( "bad buffer in yy_scan_bytes()" ); + + /* It's okay to grow etc. this buffer, and we should throw it + * away when we're done. + */ + b->yy_is_our_buffer = 1; + + return b; +} + +#ifndef YY_EXIT_FAILURE +#define YY_EXIT_FAILURE 2 +#endif + +static void yy_fatal_error (yyconst char* msg ) +{ + (void) fprintf( stderr, "%s\n", msg ); + exit( YY_EXIT_FAILURE ); +} + +/* Redefine yyless() so it works in section 3 code. */ + +#undef yyless +#define yyless(n) \ + do \ + { \ + /* Undo effects of setting up yytext. */ \ + int yyless_macro_arg = (n); \ + YY_LESS_LINENO(yyless_macro_arg);\ + yytext[yyleng] = (yy_hold_char); \ + (yy_c_buf_p) = yytext + yyless_macro_arg; \ + (yy_hold_char) = *(yy_c_buf_p); \ + *(yy_c_buf_p) = '\0'; \ + yyleng = yyless_macro_arg; \ + } \ + while ( 0 ) + +/* Accessor methods (get/set functions) to struct members. */ + +/** Get the current line number. + * + */ +int yyget_lineno (void) +{ + + return yylineno; +} + +/** Get the input stream. + * + */ +FILE *yyget_in (void) +{ + return yyin; +} + +/** Get the output stream. + * + */ +FILE *yyget_out (void) +{ + return yyout; +} + +/** Get the length of the current token. + * + */ +yy_size_t yyget_leng (void) +{ + return yyleng; +} + +/** Get the current token. + * + */ + +char *yyget_text (void) +{ + return yytext; +} + +/** Set the current line number. + * @param line_number + * + */ +void yyset_lineno (int line_number ) +{ + + yylineno = line_number; +} + +/** Set the input stream. This does not discard the current + * input buffer. + * @param in_str A readable stream. + * + * @see yy_switch_to_buffer + */ +void yyset_in (FILE * in_str ) +{ + yyin = in_str ; +} + +void yyset_out (FILE * out_str ) +{ + yyout = out_str ; +} + +int yyget_debug (void) +{ + return yy_flex_debug; +} + +void yyset_debug (int bdebug ) +{ + yy_flex_debug = bdebug ; +} + +static int yy_init_globals (void) +{ + /* Initialization is the same as for the non-reentrant scanner. + * This function is called from yylex_destroy(), so don't allocate here. + */ + + (yy_buffer_stack) = 0; + (yy_buffer_stack_top) = 0; + (yy_buffer_stack_max) = 0; + (yy_c_buf_p) = (char *) 0; + (yy_init) = 0; + (yy_start) = 0; + +/* Defined in main.c */ +#ifdef YY_STDINIT + yyin = stdin; + yyout = stdout; +#else + yyin = (FILE *) 0; + yyout = (FILE *) 0; +#endif + + /* For future reference: Set errno on error, since we are called by + * yylex_init() + */ + return 0; +} + +/* yylex_destroy is for both reentrant and non-reentrant scanners. */ +int yylex_destroy (void) +{ + + /* Pop the buffer stack, destroying each element. */ + while(YY_CURRENT_BUFFER){ + yy_delete_buffer(YY_CURRENT_BUFFER ); + YY_CURRENT_BUFFER_LVALUE = NULL; + yypop_buffer_state(); + } + + /* Destroy the stack itself. */ + yyfree((yy_buffer_stack) ); + (yy_buffer_stack) = NULL; + + /* Reset the globals. This is important in a non-reentrant scanner so the next time + * yylex() is called, initialization will occur. */ + yy_init_globals( ); + + return 0; +} + +/* + * Internal utility routines. + */ + +#ifndef yytext_ptr +static void yy_flex_strncpy (char* s1, yyconst char * s2, int n ) +{ + register int i; + for ( i = 0; i < n; ++i ) + s1[i] = s2[i]; +} +#endif + +#ifdef YY_NEED_STRLEN +static int yy_flex_strlen (yyconst char * s ) +{ + register int n; + for ( n = 0; s[n]; ++n ) + ; + + return n; +} +#endif + +void *yyalloc (yy_size_t size ) +{ + return (void *) malloc( size ); +} + +void *yyrealloc (void * ptr, yy_size_t size ) +{ + /* The cast to (char *) in the following accommodates both + * implementations that use char* generic pointers, and those + * that use void* generic pointers. It works with the latter + * because both ANSI C and C++ allow castless assignment from + * any pointer type to void*, and deal with argument conversions + * as though doing an assignment. + */ + return (void *) realloc( (char *) ptr, size ); +} + +void yyfree (void * ptr ) +{ + free( (char *) ptr ); /* see yyrealloc() for (char *) cast */ +} + +#define YYTABLES_NAME "yytables" + +#line 22 "parse_l.l" + + + diff --git a/doc/specs/parse_l.l b/doc/specs/parse_l.l new file mode 100644 index 0000000..d8400a0 --- /dev/null +++ b/doc/specs/parse_l.l @@ -0,0 +1,22 @@ +%{ +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include <stdio.h> + +#include "parse_y.h" +%} + +%option noyywrap +%% + +\#[\$]+[a-zA-Z]*(\=[0-9]+)? return NEW_COUNTER; +\#\{[a-zA-Z][a-zA-Z0-9\_]*\} return LABEL; +\# return NO_INDENT; +\#\# return RIGHT; +\\\# return HASH; +[^\n] return CHAR; +[\n] return NEWLINE; + +%% diff --git a/doc/specs/parse_y.c b/doc/specs/parse_y.c new file mode 100644 index 0000000..6277478 --- /dev/null +++ b/doc/specs/parse_y.c @@ -0,0 +1,1927 @@ +/* A Bison parser, made by GNU Bison 2.7. */ + +/* Bison implementation for Yacc-like parsers in C + + Copyright (C) 1984, 1989-1990, 2000-2012 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +/* As a special exception, you may create a larger work that contains + part or all of the Bison parser skeleton and distribute that work + under terms of your choice, so long as that work isn't itself a + parser generator using the skeleton or a modified version thereof + as a parser skeleton. Alternatively, if you modify or redistribute + the parser skeleton itself, you may (at your option) remove this + special exception, which will cause the skeleton and the resulting + Bison output files to be licensed under the GNU General Public + License without this special exception. + + This special exception was added by the Free Software Foundation in + version 2.2 of Bison. */ + +/* C LALR(1) parser skeleton written by Richard Stallman, by + simplifying the original so-called "semantic" parser. */ + +/* All symbols defined below should begin with yy or YY, to avoid + infringing on user name space. This should be done even for local + variables, as they might otherwise be expanded by user macros. + There are some unavoidable exceptions within include files to + define necessary library symbols; they are noted "INFRINGES ON + USER NAME SPACE" below. */ + +/* Identify Bison output. */ +#define YYBISON 1 + +/* Bison version. */ +#define YYBISON_VERSION "2.7" + +/* Skeleton name. */ +#define YYSKELETON_NAME "yacc.c" + +/* Pure parsers. */ +#define YYPURE 0 + +/* Push parsers. */ +#define YYPUSH 0 + +/* Pull parsers. */ +#define YYPULL 1 + + + + +/* Copy the first part of user declarations. */ +/* Line 371 of yacc.c */ +#line 2 "parse_y.y" + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#define MAXLINE 1000 +#define INDENT_STRING " " +#define PAPER_WIDTH 74 + + int indent=0; + int line=1; + char *last_label=NULL; + + extern int yylex(void); + extern char *yytext; + extern void yyerror(const char *x); + extern char *get_label(const char *label); + extern void set_label(const char *label, const char *target); + char *new_counter(const char *key); + +/* Line 371 of yacc.c */ +#line 93 "parse_y.c" + +# ifndef YY_NULL +# if defined __cplusplus && 201103L <= __cplusplus +# define YY_NULL nullptr +# else +# define YY_NULL 0 +# endif +# endif + +/* Enabling verbose error messages. */ +#ifdef YYERROR_VERBOSE +# undef YYERROR_VERBOSE +# define YYERROR_VERBOSE 1 +#else +# define YYERROR_VERBOSE 0 +#endif + +/* In a future release of Bison, this section will be replaced + by #include "y.tab.h". */ +#ifndef YY_YY_PARSE_Y_H_INCLUDED +# define YY_YY_PARSE_Y_H_INCLUDED +/* Enabling traces. */ +#ifndef YYDEBUG +# define YYDEBUG 0 +#endif +#if YYDEBUG +extern int yydebug; +#endif + +/* Tokens. */ +#ifndef YYTOKENTYPE +# define YYTOKENTYPE + /* Put the tokens into the symbol table, so that GDB and other debuggers + know about them. */ + enum yytokentype { + NEW_COUNTER = 258, + LABEL = 259, + HASH = 260, + CHAR = 261, + NEWLINE = 262, + NO_INDENT = 263, + RIGHT = 264 + }; +#endif +/* Tokens. */ +#define NEW_COUNTER 258 +#define LABEL 259 +#define HASH 260 +#define CHAR 261 +#define NEWLINE 262 +#define NO_INDENT 263 +#define RIGHT 264 + + + +#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED +typedef union YYSTYPE +{ +/* Line 387 of yacc.c */ +#line 27 "parse_y.y" + + int def; + char *string; + + +/* Line 387 of yacc.c */ +#line 160 "parse_y.c" +} YYSTYPE; +# define YYSTYPE_IS_TRIVIAL 1 +# define yystype YYSTYPE /* obsolescent; will be withdrawn */ +# define YYSTYPE_IS_DECLARED 1 +#endif + +extern YYSTYPE yylval; + +#ifdef YYPARSE_PARAM +#if defined __STDC__ || defined __cplusplus +int yyparse (void *YYPARSE_PARAM); +#else +int yyparse (); +#endif +#else /* ! YYPARSE_PARAM */ +#if defined __STDC__ || defined __cplusplus +int yyparse (void); +#else +int yyparse (); +#endif +#endif /* ! YYPARSE_PARAM */ + +#endif /* !YY_YY_PARSE_Y_H_INCLUDED */ + +/* Copy the second part of user declarations. */ + +/* Line 390 of yacc.c */ +#line 188 "parse_y.c" + +#ifdef short +# undef short +#endif + +#ifdef YYTYPE_UINT8 +typedef YYTYPE_UINT8 yytype_uint8; +#else +typedef unsigned char yytype_uint8; +#endif + +#ifdef YYTYPE_INT8 +typedef YYTYPE_INT8 yytype_int8; +#elif (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +typedef signed char yytype_int8; +#else +typedef short int yytype_int8; +#endif + +#ifdef YYTYPE_UINT16 +typedef YYTYPE_UINT16 yytype_uint16; +#else +typedef unsigned short int yytype_uint16; +#endif + +#ifdef YYTYPE_INT16 +typedef YYTYPE_INT16 yytype_int16; +#else +typedef short int yytype_int16; +#endif + +#ifndef YYSIZE_T +# ifdef __SIZE_TYPE__ +# define YYSIZE_T __SIZE_TYPE__ +# elif defined size_t +# define YYSIZE_T size_t +# elif ! defined YYSIZE_T && (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +# include <stddef.h> /* INFRINGES ON USER NAME SPACE */ +# define YYSIZE_T size_t +# else +# define YYSIZE_T unsigned int +# endif +#endif + +#define YYSIZE_MAXIMUM ((YYSIZE_T) -1) + +#ifndef YY_ +# if defined YYENABLE_NLS && YYENABLE_NLS +# if ENABLE_NLS +# include <libintl.h> /* INFRINGES ON USER NAME SPACE */ +# define YY_(Msgid) dgettext ("bison-runtime", Msgid) +# endif +# endif +# ifndef YY_ +# define YY_(Msgid) Msgid +# endif +#endif + +/* Suppress unused-variable warnings by "using" E. */ +#if ! defined lint || defined __GNUC__ +# define YYUSE(E) ((void) (E)) +#else +# define YYUSE(E) /* empty */ +#endif + +/* Identity function, used to suppress warnings about constant conditions. */ +#ifndef lint +# define YYID(N) (N) +#else +#if (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +static int +YYID (int yyi) +#else +static int +YYID (yyi) + int yyi; +#endif +{ + return yyi; +} +#endif + +#if ! defined yyoverflow || YYERROR_VERBOSE + +/* The parser invokes alloca or malloc; define the necessary symbols. */ + +# ifdef YYSTACK_USE_ALLOCA +# if YYSTACK_USE_ALLOCA +# ifdef __GNUC__ +# define YYSTACK_ALLOC __builtin_alloca +# elif defined __BUILTIN_VA_ARG_INCR +# include <alloca.h> /* INFRINGES ON USER NAME SPACE */ +# elif defined _AIX +# define YYSTACK_ALLOC __alloca +# elif defined _MSC_VER +# include <malloc.h> /* INFRINGES ON USER NAME SPACE */ +# define alloca _alloca +# else +# define YYSTACK_ALLOC alloca +# if ! defined _ALLOCA_H && ! defined EXIT_SUCCESS && (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */ + /* Use EXIT_SUCCESS as a witness for stdlib.h. */ +# ifndef EXIT_SUCCESS +# define EXIT_SUCCESS 0 +# endif +# endif +# endif +# endif +# endif + +# ifdef YYSTACK_ALLOC + /* Pacify GCC's `empty if-body' warning. */ +# define YYSTACK_FREE(Ptr) do { /* empty */; } while (YYID (0)) +# ifndef YYSTACK_ALLOC_MAXIMUM + /* The OS might guarantee only one guard page at the bottom of the stack, + and a page size can be as small as 4096 bytes. So we cannot safely + invoke alloca (N) if N exceeds 4096. Use a slightly smaller number + to allow for a few compiler-allocated temporary stack slots. */ +# define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */ +# endif +# else +# define YYSTACK_ALLOC YYMALLOC +# define YYSTACK_FREE YYFREE +# ifndef YYSTACK_ALLOC_MAXIMUM +# define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM +# endif +# if (defined __cplusplus && ! defined EXIT_SUCCESS \ + && ! ((defined YYMALLOC || defined malloc) \ + && (defined YYFREE || defined free))) +# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */ +# ifndef EXIT_SUCCESS +# define EXIT_SUCCESS 0 +# endif +# endif +# ifndef YYMALLOC +# define YYMALLOC malloc +# if ! defined malloc && ! defined EXIT_SUCCESS && (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */ +# endif +# endif +# ifndef YYFREE +# define YYFREE free +# if ! defined free && ! defined EXIT_SUCCESS && (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +void free (void *); /* INFRINGES ON USER NAME SPACE */ +# endif +# endif +# endif +#endif /* ! defined yyoverflow || YYERROR_VERBOSE */ + + +#if (! defined yyoverflow \ + && (! defined __cplusplus \ + || (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL))) + +/* A type that is properly aligned for any stack member. */ +union yyalloc +{ + yytype_int16 yyss_alloc; + YYSTYPE yyvs_alloc; +}; + +/* The size of the maximum gap between one aligned stack and the next. */ +# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1) + +/* The size of an array large to enough to hold all stacks, each with + N elements. */ +# define YYSTACK_BYTES(N) \ + ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE)) \ + + YYSTACK_GAP_MAXIMUM) + +# define YYCOPY_NEEDED 1 + +/* Relocate STACK from its old location to the new one. The + local variables YYSIZE and YYSTACKSIZE give the old and new number of + elements in the stack, and YYPTR gives the new location of the + stack. Advance YYPTR to a properly aligned location for the next + stack. */ +# define YYSTACK_RELOCATE(Stack_alloc, Stack) \ + do \ + { \ + YYSIZE_T yynewbytes; \ + YYCOPY (&yyptr->Stack_alloc, Stack, yysize); \ + Stack = &yyptr->Stack_alloc; \ + yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \ + yyptr += yynewbytes / sizeof (*yyptr); \ + } \ + while (YYID (0)) + +#endif + +#if defined YYCOPY_NEEDED && YYCOPY_NEEDED +/* Copy COUNT objects from SRC to DST. The source and destination do + not overlap. */ +# ifndef YYCOPY +# if defined __GNUC__ && 1 < __GNUC__ +# define YYCOPY(Dst, Src, Count) \ + __builtin_memcpy (Dst, Src, (Count) * sizeof (*(Src))) +# else +# define YYCOPY(Dst, Src, Count) \ + do \ + { \ + YYSIZE_T yyi; \ + for (yyi = 0; yyi < (Count); yyi++) \ + (Dst)[yyi] = (Src)[yyi]; \ + } \ + while (YYID (0)) +# endif +# endif +#endif /* !YYCOPY_NEEDED */ + +/* YYFINAL -- State number of the termination state. */ +#define YYFINAL 2 +/* YYLAST -- Last index in YYTABLE. */ +#define YYLAST 27 + +/* YYNTOKENS -- Number of terminals. */ +#define YYNTOKENS 10 +/* YYNNTS -- Number of nonterminals. */ +#define YYNNTS 4 +/* YYNRULES -- Number of rules. */ +#define YYNRULES 15 +/* YYNRULES -- Number of states. */ +#define YYNSTATES 19 + +/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */ +#define YYUNDEFTOK 2 +#define YYMAXUTOK 264 + +#define YYTRANSLATE(YYX) \ + ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK) + +/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */ +static const yytype_uint8 yytranslate[] = +{ + 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 1, 2, 3, 4, + 5, 6, 7, 8, 9 +}; + +#if YYDEBUG +/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in + YYRHS. */ +static const yytype_uint8 yyprhs[] = +{ + 0, 0, 3, 4, 7, 11, 17, 25, 33, 34, + 37, 39, 42, 44, 46, 48 +}; + +/* YYRHS -- A `-1'-separated list of the rules' RHS. */ +static const yytype_int8 yyrhs[] = +{ + 11, 0, -1, -1, 11, 7, -1, 11, 12, 7, + -1, 11, 12, 9, 12, 7, -1, 11, 12, 9, + 12, 9, 12, 7, -1, 11, 12, 9, 12, 9, + 12, 7, -1, -1, 12, 13, -1, 6, -1, 13, + 6, -1, 8, -1, 5, -1, 4, -1, 3, -1 +}; + +/* YYRLINE[YYN] -- source line where rule number YYN was defined. */ +static const yytype_uint8 yyrline[] = +{ + 0, 39, 39, 40, 44, 53, 72, 99, 128, 131, + 139, 142, 147, 151, 154, 160 +}; +#endif + +#if YYDEBUG || YYERROR_VERBOSE || 0 +/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM. + First, the terminals, then, starting at YYNTOKENS, nonterminals. */ +static const char *const yytname[] = +{ + "$end", "error", "$undefined", "NEW_COUNTER", "LABEL", "HASH", "CHAR", + "NEWLINE", "NO_INDENT", "RIGHT", "$accept", "doc", "stuff", "text", YY_NULL +}; +#endif + +# ifdef YYPRINT +/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to + token YYLEX-NUM. */ +static const yytype_uint16 yytoknum[] = +{ + 0, 256, 257, 258, 259, 260, 261, 262, 263, 264 +}; +# endif + +/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */ +static const yytype_uint8 yyr1[] = +{ + 0, 10, 11, 11, 11, 11, 11, 11, 12, 12, + 13, 13, 13, 13, 13, 13 +}; + +/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */ +static const yytype_uint8 yyr2[] = +{ + 0, 2, 0, 2, 3, 5, 7, 7, 0, 2, + 1, 2, 1, 1, 1, 1 +}; + +/* YYDEFACT[STATE-NAME] -- Default reduction number in state STATE-NUM. + Performed when YYTABLE doesn't specify something else to do. Zero + means the default is an error. */ +static const yytype_uint8 yydefact[] = +{ + 2, 8, 1, 3, 0, 15, 14, 13, 10, 4, + 12, 8, 9, 0, 11, 5, 8, 0, 6 +}; + +/* YYDEFGOTO[NTERM-NUM]. */ +static const yytype_int8 yydefgoto[] = +{ + -1, 1, 4, 12 +}; + +/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing + STATE-NUM. */ +#define YYPACT_NINF -3 +static const yytype_int8 yypact[] = +{ + -3, 0, -3, -3, 5, -3, -3, -3, -3, -3, + -3, -3, 17, 12, -3, -3, -3, -2, -3 +}; + +/* YYPGOTO[NTERM-NUM]. */ +static const yytype_int8 yypgoto[] = +{ + -3, -3, 11, -3 +}; + +/* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If + positive, shift that token. If negative, reduce the rule which + number is the opposite. If YYTABLE_NINF, syntax error. */ +#define YYTABLE_NINF -1 +static const yytype_uint8 yytable[] = +{ + 2, 5, 6, 7, 8, 18, 10, 3, 5, 6, + 7, 8, 9, 10, 11, 5, 6, 7, 8, 15, + 10, 16, 13, 14, 0, 0, 0, 17 +}; + +#define yypact_value_is_default(Yystate) \ + (!!((Yystate) == (-3))) + +#define yytable_value_is_error(Yytable_value) \ + YYID (0) + +static const yytype_int8 yycheck[] = +{ + 0, 3, 4, 5, 6, 7, 8, 7, 3, 4, + 5, 6, 7, 8, 9, 3, 4, 5, 6, 7, + 8, 9, 11, 6, -1, -1, -1, 16 +}; + +/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing + symbol of state STATE-NUM. */ +static const yytype_uint8 yystos[] = +{ + 0, 11, 0, 7, 12, 3, 4, 5, 6, 7, + 8, 9, 13, 12, 6, 7, 9, 12, 7 +}; + +#define yyerrok (yyerrstatus = 0) +#define yyclearin (yychar = YYEMPTY) +#define YYEMPTY (-2) +#define YYEOF 0 + +#define YYACCEPT goto yyacceptlab +#define YYABORT goto yyabortlab +#define YYERROR goto yyerrorlab + + +/* Like YYERROR except do call yyerror. This remains here temporarily + to ease the transition to the new meaning of YYERROR, for GCC. + Once GCC version 2 has supplanted version 1, this can go. However, + YYFAIL appears to be in use. Nevertheless, it is formally deprecated + in Bison 2.4.2's NEWS entry, where a plan to phase it out is + discussed. */ + +#define YYFAIL goto yyerrlab +#if defined YYFAIL + /* This is here to suppress warnings from the GCC cpp's + -Wunused-macros. Normally we don't worry about that warning, but + some users do, and we want to make it easy for users to remove + YYFAIL uses, which will produce warnings from Bison 2.5. */ +#endif + +#define YYRECOVERING() (!!yyerrstatus) + +#define YYBACKUP(Token, Value) \ +do \ + if (yychar == YYEMPTY) \ + { \ + yychar = (Token); \ + yylval = (Value); \ + YYPOPSTACK (yylen); \ + yystate = *yyssp; \ + goto yybackup; \ + } \ + else \ + { \ + yyerror (YY_("syntax error: cannot back up")); \ + YYERROR; \ + } \ +while (YYID (0)) + +/* Error token number */ +#define YYTERROR 1 +#define YYERRCODE 256 + + +/* This macro is provided for backward compatibility. */ +#ifndef YY_LOCATION_PRINT +# define YY_LOCATION_PRINT(File, Loc) ((void) 0) +#endif + + +/* YYLEX -- calling `yylex' with the right arguments. */ +#ifdef YYLEX_PARAM +# define YYLEX yylex (YYLEX_PARAM) +#else +# define YYLEX yylex () +#endif + +/* Enable debugging if requested. */ +#if YYDEBUG + +# ifndef YYFPRINTF +# include <stdio.h> /* INFRINGES ON USER NAME SPACE */ +# define YYFPRINTF fprintf +# endif + +# define YYDPRINTF(Args) \ +do { \ + if (yydebug) \ + YYFPRINTF Args; \ +} while (YYID (0)) + +# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \ +do { \ + if (yydebug) \ + { \ + YYFPRINTF (stderr, "%s ", Title); \ + yy_symbol_print (stderr, \ + Type, Value); \ + YYFPRINTF (stderr, "\n"); \ + } \ +} while (YYID (0)) + + +/*--------------------------------. +| Print this symbol on YYOUTPUT. | +`--------------------------------*/ + +/*ARGSUSED*/ +#if (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +static void +yy_symbol_value_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep) +#else +static void +yy_symbol_value_print (yyoutput, yytype, yyvaluep) + FILE *yyoutput; + int yytype; + YYSTYPE const * const yyvaluep; +#endif +{ + FILE *yyo = yyoutput; + YYUSE (yyo); + if (!yyvaluep) + return; +# ifdef YYPRINT + if (yytype < YYNTOKENS) + YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep); +# else + YYUSE (yyoutput); +# endif + switch (yytype) + { + default: + break; + } +} + + +/*--------------------------------. +| Print this symbol on YYOUTPUT. | +`--------------------------------*/ + +#if (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +static void +yy_symbol_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep) +#else +static void +yy_symbol_print (yyoutput, yytype, yyvaluep) + FILE *yyoutput; + int yytype; + YYSTYPE const * const yyvaluep; +#endif +{ + if (yytype < YYNTOKENS) + YYFPRINTF (yyoutput, "token %s (", yytname[yytype]); + else + YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]); + + yy_symbol_value_print (yyoutput, yytype, yyvaluep); + YYFPRINTF (yyoutput, ")"); +} + +/*------------------------------------------------------------------. +| yy_stack_print -- Print the state stack from its BOTTOM up to its | +| TOP (included). | +`------------------------------------------------------------------*/ + +#if (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +static void +yy_stack_print (yytype_int16 *yybottom, yytype_int16 *yytop) +#else +static void +yy_stack_print (yybottom, yytop) + yytype_int16 *yybottom; + yytype_int16 *yytop; +#endif +{ + YYFPRINTF (stderr, "Stack now"); + for (; yybottom <= yytop; yybottom++) + { + int yybot = *yybottom; + YYFPRINTF (stderr, " %d", yybot); + } + YYFPRINTF (stderr, "\n"); +} + +# define YY_STACK_PRINT(Bottom, Top) \ +do { \ + if (yydebug) \ + yy_stack_print ((Bottom), (Top)); \ +} while (YYID (0)) + + +/*------------------------------------------------. +| Report that the YYRULE is going to be reduced. | +`------------------------------------------------*/ + +#if (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +static void +yy_reduce_print (YYSTYPE *yyvsp, int yyrule) +#else +static void +yy_reduce_print (yyvsp, yyrule) + YYSTYPE *yyvsp; + int yyrule; +#endif +{ + int yynrhs = yyr2[yyrule]; + int yyi; + unsigned long int yylno = yyrline[yyrule]; + YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n", + yyrule - 1, yylno); + /* The symbols being reduced. */ + for (yyi = 0; yyi < yynrhs; yyi++) + { + YYFPRINTF (stderr, " $%d = ", yyi + 1); + yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi], + &(yyvsp[(yyi + 1) - (yynrhs)]) + ); + YYFPRINTF (stderr, "\n"); + } +} + +# define YY_REDUCE_PRINT(Rule) \ +do { \ + if (yydebug) \ + yy_reduce_print (yyvsp, Rule); \ +} while (YYID (0)) + +/* Nonzero means print parse trace. It is left uninitialized so that + multiple parsers can coexist. */ +int yydebug; +#else /* !YYDEBUG */ +# define YYDPRINTF(Args) +# define YY_SYMBOL_PRINT(Title, Type, Value, Location) +# define YY_STACK_PRINT(Bottom, Top) +# define YY_REDUCE_PRINT(Rule) +#endif /* !YYDEBUG */ + + +/* YYINITDEPTH -- initial size of the parser's stacks. */ +#ifndef YYINITDEPTH +# define YYINITDEPTH 200 +#endif + +/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only + if the built-in stack extension method is used). + + Do not make this value too large; the results are undefined if + YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH) + evaluated with infinite-precision integer arithmetic. */ + +#ifndef YYMAXDEPTH +# define YYMAXDEPTH 10000 +#endif + + +#if YYERROR_VERBOSE + +# ifndef yystrlen +# if defined __GLIBC__ && defined _STRING_H +# define yystrlen strlen +# else +/* Return the length of YYSTR. */ +#if (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +static YYSIZE_T +yystrlen (const char *yystr) +#else +static YYSIZE_T +yystrlen (yystr) + const char *yystr; +#endif +{ + YYSIZE_T yylen; + for (yylen = 0; yystr[yylen]; yylen++) + continue; + return yylen; +} +# endif +# endif + +# ifndef yystpcpy +# if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE +# define yystpcpy stpcpy +# else +/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in + YYDEST. */ +#if (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +static char * +yystpcpy (char *yydest, const char *yysrc) +#else +static char * +yystpcpy (yydest, yysrc) + char *yydest; + const char *yysrc; +#endif +{ + char *yyd = yydest; + const char *yys = yysrc; + + while ((*yyd++ = *yys++) != '\0') + continue; + + return yyd - 1; +} +# endif +# endif + +# ifndef yytnamerr +/* Copy to YYRES the contents of YYSTR after stripping away unnecessary + quotes and backslashes, so that it's suitable for yyerror. The + heuristic is that double-quoting is unnecessary unless the string + contains an apostrophe, a comma, or backslash (other than + backslash-backslash). YYSTR is taken from yytname. If YYRES is + null, do not copy; instead, return the length of what the result + would have been. */ +static YYSIZE_T +yytnamerr (char *yyres, const char *yystr) +{ + if (*yystr == '"') + { + YYSIZE_T yyn = 0; + char const *yyp = yystr; + + for (;;) + switch (*++yyp) + { + case '\'': + case ',': + goto do_not_strip_quotes; + + case '\\': + if (*++yyp != '\\') + goto do_not_strip_quotes; + /* Fall through. */ + default: + if (yyres) + yyres[yyn] = *yyp; + yyn++; + break; + + case '"': + if (yyres) + yyres[yyn] = '\0'; + return yyn; + } + do_not_strip_quotes: ; + } + + if (! yyres) + return yystrlen (yystr); + + return yystpcpy (yyres, yystr) - yyres; +} +# endif + +/* Copy into *YYMSG, which is of size *YYMSG_ALLOC, an error message + about the unexpected token YYTOKEN for the state stack whose top is + YYSSP. + + Return 0 if *YYMSG was successfully written. Return 1 if *YYMSG is + not large enough to hold the message. In that case, also set + *YYMSG_ALLOC to the required number of bytes. Return 2 if the + required number of bytes is too large to store. */ +static int +yysyntax_error (YYSIZE_T *yymsg_alloc, char **yymsg, + yytype_int16 *yyssp, int yytoken) +{ + YYSIZE_T yysize0 = yytnamerr (YY_NULL, yytname[yytoken]); + YYSIZE_T yysize = yysize0; + enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 }; + /* Internationalized format string. */ + const char *yyformat = YY_NULL; + /* Arguments of yyformat. */ + char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM]; + /* Number of reported tokens (one for the "unexpected", one per + "expected"). */ + int yycount = 0; + + /* There are many possibilities here to consider: + - Assume YYFAIL is not used. It's too flawed to consider. See + <http://lists.gnu.org/archive/html/bison-patches/2009-12/msg00024.html> + for details. YYERROR is fine as it does not invoke this + function. + - If this state is a consistent state with a default action, then + the only way this function was invoked is if the default action + is an error action. In that case, don't check for expected + tokens because there are none. + - The only way there can be no lookahead present (in yychar) is if + this state is a consistent state with a default action. Thus, + detecting the absence of a lookahead is sufficient to determine + that there is no unexpected or expected token to report. In that + case, just report a simple "syntax error". + - Don't assume there isn't a lookahead just because this state is a + consistent state with a default action. There might have been a + previous inconsistent state, consistent state with a non-default + action, or user semantic action that manipulated yychar. + - Of course, the expected token list depends on states to have + correct lookahead information, and it depends on the parser not + to perform extra reductions after fetching a lookahead from the + scanner and before detecting a syntax error. Thus, state merging + (from LALR or IELR) and default reductions corrupt the expected + token list. However, the list is correct for canonical LR with + one exception: it will still contain any token that will not be + accepted due to an error action in a later state. + */ + if (yytoken != YYEMPTY) + { + int yyn = yypact[*yyssp]; + yyarg[yycount++] = yytname[yytoken]; + if (!yypact_value_is_default (yyn)) + { + /* Start YYX at -YYN if negative to avoid negative indexes in + YYCHECK. In other words, skip the first -YYN actions for + this state because they are default actions. */ + int yyxbegin = yyn < 0 ? -yyn : 0; + /* Stay within bounds of both yycheck and yytname. */ + int yychecklim = YYLAST - yyn + 1; + int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS; + int yyx; + + for (yyx = yyxbegin; yyx < yyxend; ++yyx) + if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR + && !yytable_value_is_error (yytable[yyx + yyn])) + { + if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM) + { + yycount = 1; + yysize = yysize0; + break; + } + yyarg[yycount++] = yytname[yyx]; + { + YYSIZE_T yysize1 = yysize + yytnamerr (YY_NULL, yytname[yyx]); + if (! (yysize <= yysize1 + && yysize1 <= YYSTACK_ALLOC_MAXIMUM)) + return 2; + yysize = yysize1; + } + } + } + } + + switch (yycount) + { +# define YYCASE_(N, S) \ + case N: \ + yyformat = S; \ + break + YYCASE_(0, YY_("syntax error")); + YYCASE_(1, YY_("syntax error, unexpected %s")); + YYCASE_(2, YY_("syntax error, unexpected %s, expecting %s")); + YYCASE_(3, YY_("syntax error, unexpected %s, expecting %s or %s")); + YYCASE_(4, YY_("syntax error, unexpected %s, expecting %s or %s or %s")); + YYCASE_(5, YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s")); +# undef YYCASE_ + } + + { + YYSIZE_T yysize1 = yysize + yystrlen (yyformat); + if (! (yysize <= yysize1 && yysize1 <= YYSTACK_ALLOC_MAXIMUM)) + return 2; + yysize = yysize1; + } + + if (*yymsg_alloc < yysize) + { + *yymsg_alloc = 2 * yysize; + if (! (yysize <= *yymsg_alloc + && *yymsg_alloc <= YYSTACK_ALLOC_MAXIMUM)) + *yymsg_alloc = YYSTACK_ALLOC_MAXIMUM; + return 1; + } + + /* Avoid sprintf, as that infringes on the user's name space. + Don't have undefined behavior even if the translation + produced a string with the wrong number of "%s"s. */ + { + char *yyp = *yymsg; + int yyi = 0; + while ((*yyp = *yyformat) != '\0') + if (*yyp == '%' && yyformat[1] == 's' && yyi < yycount) + { + yyp += yytnamerr (yyp, yyarg[yyi++]); + yyformat += 2; + } + else + { + yyp++; + yyformat++; + } + } + return 0; +} +#endif /* YYERROR_VERBOSE */ + +/*-----------------------------------------------. +| Release the memory associated to this symbol. | +`-----------------------------------------------*/ + +/*ARGSUSED*/ +#if (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +static void +yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep) +#else +static void +yydestruct (yymsg, yytype, yyvaluep) + const char *yymsg; + int yytype; + YYSTYPE *yyvaluep; +#endif +{ + YYUSE (yyvaluep); + + if (!yymsg) + yymsg = "Deleting"; + YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp); + + switch (yytype) + { + + default: + break; + } +} + + + + +/* The lookahead symbol. */ +int yychar; + + +#ifndef YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN +# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN +# define YY_IGNORE_MAYBE_UNINITIALIZED_END +#endif +#ifndef YY_INITIAL_VALUE +# define YY_INITIAL_VALUE(Value) /* Nothing. */ +#endif + +/* The semantic value of the lookahead symbol. */ +YYSTYPE yylval YY_INITIAL_VALUE(yyval_default); + +/* Number of syntax errors so far. */ +int yynerrs; + + +/*----------. +| yyparse. | +`----------*/ + +#ifdef YYPARSE_PARAM +#if (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +int +yyparse (void *YYPARSE_PARAM) +#else +int +yyparse (YYPARSE_PARAM) + void *YYPARSE_PARAM; +#endif +#else /* ! YYPARSE_PARAM */ +#if (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +int +yyparse (void) +#else +int +yyparse () + +#endif +#endif +{ + int yystate; + /* Number of tokens to shift before error messages enabled. */ + int yyerrstatus; + + /* The stacks and their tools: + `yyss': related to states. + `yyvs': related to semantic values. + + Refer to the stacks through separate pointers, to allow yyoverflow + to reallocate them elsewhere. */ + + /* The state stack. */ + yytype_int16 yyssa[YYINITDEPTH]; + yytype_int16 *yyss; + yytype_int16 *yyssp; + + /* The semantic value stack. */ + YYSTYPE yyvsa[YYINITDEPTH]; + YYSTYPE *yyvs; + YYSTYPE *yyvsp; + + YYSIZE_T yystacksize; + + int yyn; + int yyresult; + /* Lookahead token as an internal (translated) token number. */ + int yytoken = 0; + /* The variables used to return semantic value and location from the + action routines. */ + YYSTYPE yyval; + +#if YYERROR_VERBOSE + /* Buffer for error messages, and its allocated size. */ + char yymsgbuf[128]; + char *yymsg = yymsgbuf; + YYSIZE_T yymsg_alloc = sizeof yymsgbuf; +#endif + +#define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N)) + + /* The number of symbols on the RHS of the reduced rule. + Keep to zero when no symbol should be popped. */ + int yylen = 0; + + yyssp = yyss = yyssa; + yyvsp = yyvs = yyvsa; + yystacksize = YYINITDEPTH; + + YYDPRINTF ((stderr, "Starting parse\n")); + + yystate = 0; + yyerrstatus = 0; + yynerrs = 0; + yychar = YYEMPTY; /* Cause a token to be read. */ + goto yysetstate; + +/*------------------------------------------------------------. +| yynewstate -- Push a new state, which is found in yystate. | +`------------------------------------------------------------*/ + yynewstate: + /* In all cases, when you get here, the value and location stacks + have just been pushed. So pushing a state here evens the stacks. */ + yyssp++; + + yysetstate: + *yyssp = yystate; + + if (yyss + yystacksize - 1 <= yyssp) + { + /* Get the current used size of the three stacks, in elements. */ + YYSIZE_T yysize = yyssp - yyss + 1; + +#ifdef yyoverflow + { + /* Give user a chance to reallocate the stack. Use copies of + these so that the &'s don't force the real ones into + memory. */ + YYSTYPE *yyvs1 = yyvs; + yytype_int16 *yyss1 = yyss; + + /* Each stack pointer address is followed by the size of the + data in use in that stack, in bytes. This used to be a + conditional around just the two extra args, but that might + be undefined if yyoverflow is a macro. */ + yyoverflow (YY_("memory exhausted"), + &yyss1, yysize * sizeof (*yyssp), + &yyvs1, yysize * sizeof (*yyvsp), + &yystacksize); + + yyss = yyss1; + yyvs = yyvs1; + } +#else /* no yyoverflow */ +# ifndef YYSTACK_RELOCATE + goto yyexhaustedlab; +# else + /* Extend the stack our own way. */ + if (YYMAXDEPTH <= yystacksize) + goto yyexhaustedlab; + yystacksize *= 2; + if (YYMAXDEPTH < yystacksize) + yystacksize = YYMAXDEPTH; + + { + yytype_int16 *yyss1 = yyss; + union yyalloc *yyptr = + (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize)); + if (! yyptr) + goto yyexhaustedlab; + YYSTACK_RELOCATE (yyss_alloc, yyss); + YYSTACK_RELOCATE (yyvs_alloc, yyvs); +# undef YYSTACK_RELOCATE + if (yyss1 != yyssa) + YYSTACK_FREE (yyss1); + } +# endif +#endif /* no yyoverflow */ + + yyssp = yyss + yysize - 1; + yyvsp = yyvs + yysize - 1; + + YYDPRINTF ((stderr, "Stack size increased to %lu\n", + (unsigned long int) yystacksize)); + + if (yyss + yystacksize - 1 <= yyssp) + YYABORT; + } + + YYDPRINTF ((stderr, "Entering state %d\n", yystate)); + + if (yystate == YYFINAL) + YYACCEPT; + + goto yybackup; + +/*-----------. +| yybackup. | +`-----------*/ +yybackup: + + /* Do appropriate processing given the current state. Read a + lookahead token if we need one and don't already have one. */ + + /* First try to decide what to do without reference to lookahead token. */ + yyn = yypact[yystate]; + if (yypact_value_is_default (yyn)) + goto yydefault; + + /* Not known => get a lookahead token if don't already have one. */ + + /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */ + if (yychar == YYEMPTY) + { + YYDPRINTF ((stderr, "Reading a token: ")); + yychar = YYLEX; + } + + if (yychar <= YYEOF) + { + yychar = yytoken = YYEOF; + YYDPRINTF ((stderr, "Now at end of input.\n")); + } + else + { + yytoken = YYTRANSLATE (yychar); + YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc); + } + + /* If the proper action on seeing token YYTOKEN is to reduce or to + detect an error, take that action. */ + yyn += yytoken; + if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken) + goto yydefault; + yyn = yytable[yyn]; + if (yyn <= 0) + { + if (yytable_value_is_error (yyn)) + goto yyerrlab; + yyn = -yyn; + goto yyreduce; + } + + /* Count tokens shifted since error; after three, turn off error + status. */ + if (yyerrstatus) + yyerrstatus--; + + /* Shift the lookahead token. */ + YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc); + + /* Discard the shifted token. */ + yychar = YYEMPTY; + + yystate = yyn; + YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN + *++yyvsp = yylval; + YY_IGNORE_MAYBE_UNINITIALIZED_END + + goto yynewstate; + + +/*-----------------------------------------------------------. +| yydefault -- do the default action for the current state. | +`-----------------------------------------------------------*/ +yydefault: + yyn = yydefact[yystate]; + if (yyn == 0) + goto yyerrlab; + goto yyreduce; + + +/*-----------------------------. +| yyreduce -- Do a reduction. | +`-----------------------------*/ +yyreduce: + /* yyn is the number of a rule to reduce with. */ + yylen = yyr2[yyn]; + + /* If YYLEN is nonzero, implement the default value of the action: + `$$ = $1'. + + Otherwise, the following line sets YYVAL to garbage. + This behavior is undocumented and Bison + users should not rely upon it. Assigning to YYVAL + unconditionally makes the parser a bit smaller, and it avoids a + GCC warning that YYVAL may be used uninitialized. */ + yyval = yyvsp[1-yylen]; + + + YY_REDUCE_PRINT (yyn); + switch (yyn) + { + case 3: +/* Line 1792 of yacc.c */ +#line 40 "parse_y.y" + { + printf("\n"); + ++line; +} + break; + + case 4: +/* Line 1792 of yacc.c */ +#line 44 "parse_y.y" + { + if (strlen((yyvsp[(2) - (3)].string)) > (PAPER_WIDTH-(indent ? strlen(INDENT_STRING):0))) { + yyerror("line too long"); + } + printf("%s%s\n", indent ? INDENT_STRING:"", (yyvsp[(2) - (3)].string)); + free((yyvsp[(2) - (3)].string)); + indent = 1; + ++line; +} + break; + + case 5: +/* Line 1792 of yacc.c */ +#line 53 "parse_y.y" + { + char fixed[PAPER_WIDTH+1]; + int len; + + len = PAPER_WIDTH-(strlen((yyvsp[(2) - (5)].string))+strlen((yyvsp[(4) - (5)].string))); + + if (len >= 0) { + memset(fixed, ' ', len); + fixed[len] = '\0'; + } else { + yyerror("line too wide"); + fixed[0] = '\0'; + } + printf("%s%s%s\n", (yyvsp[(2) - (5)].string), fixed, (yyvsp[(4) - (5)].string)); + free((yyvsp[(2) - (5)].string)); + free((yyvsp[(4) - (5)].string)); + indent = 1; + ++line; +} + break; + + case 6: +/* Line 1792 of yacc.c */ +#line 72 "parse_y.y" + { + char fixed[PAPER_WIDTH+1]; + int len, l; + + len = PAPER_WIDTH-(strlen((yyvsp[(2) - (7)].string))+strlen((yyvsp[(4) - (7)].string))); + + if (len < 0) { + len = 0; + yyerror("line too wide"); + } + + l = len/2; + memset(fixed, ' ', l); + fixed[l] = '\0'; + printf("%s%s%s", (yyvsp[(2) - (7)].string), fixed, (yyvsp[(4) - (7)].string)); + free((yyvsp[(2) - (7)].string)); + free((yyvsp[(4) - (7)].string)); + + l = (len+1)/2; + memset(fixed, ' ', l); + fixed[l] = '\0'; + printf("%s%s\n", fixed, (yyvsp[(6) - (7)].string)); + free((yyvsp[(6) - (7)].string)); + + indent = 1; + ++line; +} + break; + + case 7: +/* Line 1792 of yacc.c */ +#line 99 "parse_y.y" + { + char fixed[PAPER_WIDTH+1]; + int len, l; + + len = PAPER_WIDTH-(strlen((yyvsp[(2) - (7)].string))+strlen((yyvsp[(4) - (7)].string))); + + if (len < 0) { + len = 0; + yyerror("line too wide"); + } + + l = len/2; + memset(fixed, ' ', l); + fixed[l] = '\0'; + printf("%s%s%s", (yyvsp[(2) - (7)].string), fixed, (yyvsp[(4) - (7)].string)); + free((yyvsp[(2) - (7)].string)); + free((yyvsp[(4) - (7)].string)); + + l = (len+1)/2; + memset(fixed, ' ', l); + fixed[l] = '\0'; + printf("%s%s\n", fixed, (yyvsp[(6) - (7)].string)); + free((yyvsp[(6) - (7)].string)); + + indent = 1; + ++line; +} + break; + + case 8: +/* Line 1792 of yacc.c */ +#line 128 "parse_y.y" + { + (yyval.string) = strdup(""); +} + break; + + case 9: +/* Line 1792 of yacc.c */ +#line 131 "parse_y.y" + { + (yyval.string) = malloc(strlen((yyvsp[(1) - (2)].string))+strlen((yyvsp[(2) - (2)].string))+1); + sprintf((yyval.string),"%s%s", (yyvsp[(1) - (2)].string), (yyvsp[(2) - (2)].string)); + free((yyvsp[(1) - (2)].string)); + free((yyvsp[(2) - (2)].string)); +} + break; + + case 10: +/* Line 1792 of yacc.c */ +#line 139 "parse_y.y" + { + (yyval.string) = strdup(yytext); +} + break; + + case 11: +/* Line 1792 of yacc.c */ +#line 142 "parse_y.y" + { + (yyval.string) = malloc(strlen((yyvsp[(1) - (2)].string))+2); + sprintf((yyval.string),"%s%s", (yyvsp[(1) - (2)].string), yytext); + free((yyvsp[(1) - (2)].string)); +} + break; + + case 12: +/* Line 1792 of yacc.c */ +#line 147 "parse_y.y" + { + (yyval.string) = strdup(""); + indent = 0; +} + break; + + case 13: +/* Line 1792 of yacc.c */ +#line 151 "parse_y.y" + { + (yyval.string) = strdup("#"); +} + break; + + case 14: +/* Line 1792 of yacc.c */ +#line 154 "parse_y.y" + { + if (((yyval.string) = get_label(yytext)) == NULL) { + set_label(yytext, last_label); + (yyval.string) = strdup(""); + } +} + break; + + case 15: +/* Line 1792 of yacc.c */ +#line 160 "parse_y.y" + { + (yyval.string) = new_counter(yytext); +} + break; + + +/* Line 1792 of yacc.c */ +#line 1563 "parse_y.c" + default: break; + } + /* User semantic actions sometimes alter yychar, and that requires + that yytoken be updated with the new translation. We take the + approach of translating immediately before every use of yytoken. + One alternative is translating here after every semantic action, + but that translation would be missed if the semantic action invokes + YYABORT, YYACCEPT, or YYERROR immediately after altering yychar or + if it invokes YYBACKUP. In the case of YYABORT or YYACCEPT, an + incorrect destructor might then be invoked immediately. In the + case of YYERROR or YYBACKUP, subsequent parser actions might lead + to an incorrect destructor call or verbose syntax error message + before the lookahead is translated. */ + YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc); + + YYPOPSTACK (yylen); + yylen = 0; + YY_STACK_PRINT (yyss, yyssp); + + *++yyvsp = yyval; + + /* Now `shift' the result of the reduction. Determine what state + that goes to, based on the state we popped back to and the rule + number reduced by. */ + + yyn = yyr1[yyn]; + + yystate = yypgoto[yyn - YYNTOKENS] + *yyssp; + if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp) + yystate = yytable[yystate]; + else + yystate = yydefgoto[yyn - YYNTOKENS]; + + goto yynewstate; + + +/*------------------------------------. +| yyerrlab -- here on detecting error | +`------------------------------------*/ +yyerrlab: + /* Make sure we have latest lookahead translation. See comments at + user semantic actions for why this is necessary. */ + yytoken = yychar == YYEMPTY ? YYEMPTY : YYTRANSLATE (yychar); + + /* If not already recovering from an error, report this error. */ + if (!yyerrstatus) + { + ++yynerrs; +#if ! YYERROR_VERBOSE + yyerror (YY_("syntax error")); +#else +# define YYSYNTAX_ERROR yysyntax_error (&yymsg_alloc, &yymsg, \ + yyssp, yytoken) + { + char const *yymsgp = YY_("syntax error"); + int yysyntax_error_status; + yysyntax_error_status = YYSYNTAX_ERROR; + if (yysyntax_error_status == 0) + yymsgp = yymsg; + else if (yysyntax_error_status == 1) + { + if (yymsg != yymsgbuf) + YYSTACK_FREE (yymsg); + yymsg = (char *) YYSTACK_ALLOC (yymsg_alloc); + if (!yymsg) + { + yymsg = yymsgbuf; + yymsg_alloc = sizeof yymsgbuf; + yysyntax_error_status = 2; + } + else + { + yysyntax_error_status = YYSYNTAX_ERROR; + yymsgp = yymsg; + } + } + yyerror (yymsgp); + if (yysyntax_error_status == 2) + goto yyexhaustedlab; + } +# undef YYSYNTAX_ERROR +#endif + } + + + + if (yyerrstatus == 3) + { + /* If just tried and failed to reuse lookahead token after an + error, discard it. */ + + if (yychar <= YYEOF) + { + /* Return failure if at end of input. */ + if (yychar == YYEOF) + YYABORT; + } + else + { + yydestruct ("Error: discarding", + yytoken, &yylval); + yychar = YYEMPTY; + } + } + + /* Else will try to reuse lookahead token after shifting the error + token. */ + goto yyerrlab1; + + +/*---------------------------------------------------. +| yyerrorlab -- error raised explicitly by YYERROR. | +`---------------------------------------------------*/ +yyerrorlab: + + /* Pacify compilers like GCC when the user code never invokes + YYERROR and the label yyerrorlab therefore never appears in user + code. */ + if (/*CONSTCOND*/ 0) + goto yyerrorlab; + + /* Do not reclaim the symbols of the rule which action triggered + this YYERROR. */ + YYPOPSTACK (yylen); + yylen = 0; + YY_STACK_PRINT (yyss, yyssp); + yystate = *yyssp; + goto yyerrlab1; + + +/*-------------------------------------------------------------. +| yyerrlab1 -- common code for both syntax error and YYERROR. | +`-------------------------------------------------------------*/ +yyerrlab1: + yyerrstatus = 3; /* Each real token shifted decrements this. */ + + for (;;) + { + yyn = yypact[yystate]; + if (!yypact_value_is_default (yyn)) + { + yyn += YYTERROR; + if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR) + { + yyn = yytable[yyn]; + if (0 < yyn) + break; + } + } + + /* Pop the current state because it cannot handle the error token. */ + if (yyssp == yyss) + YYABORT; + + + yydestruct ("Error: popping", + yystos[yystate], yyvsp); + YYPOPSTACK (1); + yystate = *yyssp; + YY_STACK_PRINT (yyss, yyssp); + } + + YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN + *++yyvsp = yylval; + YY_IGNORE_MAYBE_UNINITIALIZED_END + + + /* Shift the error token. */ + YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp); + + yystate = yyn; + goto yynewstate; + + +/*-------------------------------------. +| yyacceptlab -- YYACCEPT comes here. | +`-------------------------------------*/ +yyacceptlab: + yyresult = 0; + goto yyreturn; + +/*-----------------------------------. +| yyabortlab -- YYABORT comes here. | +`-----------------------------------*/ +yyabortlab: + yyresult = 1; + goto yyreturn; + +#if !defined yyoverflow || YYERROR_VERBOSE +/*-------------------------------------------------. +| yyexhaustedlab -- memory exhaustion comes here. | +`-------------------------------------------------*/ +yyexhaustedlab: + yyerror (YY_("memory exhausted")); + yyresult = 2; + /* Fall through. */ +#endif + +yyreturn: + if (yychar != YYEMPTY) + { + /* Make sure we have latest lookahead translation. See comments at + user semantic actions for why this is necessary. */ + yytoken = YYTRANSLATE (yychar); + yydestruct ("Cleanup: discarding lookahead", + yytoken, &yylval); + } + /* Do not reclaim the symbols of the rule which action triggered + this YYABORT or YYACCEPT. */ + YYPOPSTACK (yylen); + YY_STACK_PRINT (yyss, yyssp); + while (yyssp != yyss) + { + yydestruct ("Cleanup: popping", + yystos[*yyssp], yyvsp); + YYPOPSTACK (1); + } +#ifndef yyoverflow + if (yyss != yyssa) + YYSTACK_FREE (yyss); +#endif +#if YYERROR_VERBOSE + if (yymsg != yymsgbuf) + YYSTACK_FREE (yymsg); +#endif + /* Make sure YYID is used. */ + return YYID (yyresult); +} + + +/* Line 2055 of yacc.c */ +#line 165 "parse_y.y" + + +typedef struct node_s { + struct node_s *left, *right; + const char *key; + char *value; +} *node_t; + +node_t label_root = NULL; +node_t counter_root = NULL; + +static const char *find_key(node_t root, const char *key) +{ + while (root) { + int cmp = strcmp(key, root->key); + + if (cmp > 0) { + root = root->right; + } else if (cmp) { + root = root->left; + } else { + return root->value; + } + } + return NULL; +} + +static node_t set_key(node_t root, const char *key, const char *value) +{ + if (root) { + int cmp = strcmp(key, root->key); + if (cmp > 0) { + root->right = set_key(root->right, key, value); + } else if (cmp) { + root->left = set_key(root->left, key, value); + } else { + free(root->value); + root->value = strdup(value); + } + } else { + root = malloc(sizeof(struct node_s)); + root->right = root->left = NULL; + root->key = strdup(key); + root->value = strdup(value); + } + return root; +} + +void yyerror(const char *x) +{ + fprintf(stderr, "line %d: %s\n", line, x); +} + +char *get_label(const char *label) +{ + const char *found = find_key(label_root, label); + + if (found) { + return strdup(found); + } + return NULL; +} + +void set_label(const char *label, const char *target) +{ + if (target == NULL) { + yyerror("no hanging value for label"); + target = "<??" ">"; /* avoid trigraph warning */ + } + label_root = set_key(label_root, label, target); +} + +char *new_counter(const char *key) +{ + int i=0, j, ndollars = 0; + const char *old; + char *new; + + if (key[i++] != '#') { + yyerror("bad index"); + return strdup("<???" ">"); /* avoid trigraph warning */ + } + + while (key[i] == '$') { + ++ndollars; + ++i; + } + + key += i; + old = find_key(counter_root, key); + new = malloc(20*ndollars); + + if (old) { + for (j=0; ndollars > 1 && old[j]; ) { + if (old[j++] == '.' && --ndollars <= 0) { + break; + } + } + if (j) { + strncpy(new, old, j); + } + if (old[j]) { + i = atoi(old+j); + } else { + new[j++] = '.'; + i = 0; + } + } else { + j=0; + while (--ndollars > 0) { + new[j++] = '0'; + new[j++] = '.'; + } + i = 0; + } + new[j] = '\0'; + sprintf(new+j, "%d", ++i); + + counter_root = set_key(counter_root, key, new); + + if (last_label) { + free(last_label); + } + last_label = strdup(new); + + return new; +} + +int +main(void) +{ + return yyparse(); +} diff --git a/doc/specs/parse_y.h b/doc/specs/parse_y.h new file mode 100644 index 0000000..4323b3e --- /dev/null +++ b/doc/specs/parse_y.h @@ -0,0 +1,103 @@ +/* A Bison parser, made by GNU Bison 2.7. */ + +/* Bison interface for Yacc-like parsers in C + + Copyright (C) 1984, 1989-1990, 2000-2012 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +/* As a special exception, you may create a larger work that contains + part or all of the Bison parser skeleton and distribute that work + under terms of your choice, so long as that work isn't itself a + parser generator using the skeleton or a modified version thereof + as a parser skeleton. Alternatively, if you modify or redistribute + the parser skeleton itself, you may (at your option) remove this + special exception, which will cause the skeleton and the resulting + Bison output files to be licensed under the GNU General Public + License without this special exception. + + This special exception was added by the Free Software Foundation in + version 2.2 of Bison. */ + +#ifndef YY_YY_PARSE_Y_H_INCLUDED +# define YY_YY_PARSE_Y_H_INCLUDED +/* Enabling traces. */ +#ifndef YYDEBUG +# define YYDEBUG 0 +#endif +#if YYDEBUG +extern int yydebug; +#endif + +/* Tokens. */ +#ifndef YYTOKENTYPE +# define YYTOKENTYPE + /* Put the tokens into the symbol table, so that GDB and other debuggers + know about them. */ + enum yytokentype { + NEW_COUNTER = 258, + LABEL = 259, + HASH = 260, + CHAR = 261, + NEWLINE = 262, + NO_INDENT = 263, + RIGHT = 264 + }; +#endif +/* Tokens. */ +#define NEW_COUNTER 258 +#define LABEL 259 +#define HASH 260 +#define CHAR 261 +#define NEWLINE 262 +#define NO_INDENT 263 +#define RIGHT 264 + + + +#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED +typedef union YYSTYPE +{ +/* Line 2058 of yacc.c */ +#line 27 "parse_y.y" + + int def; + char *string; + + +/* Line 2058 of yacc.c */ +#line 81 "parse_y.h" +} YYSTYPE; +# define YYSTYPE_IS_TRIVIAL 1 +# define yystype YYSTYPE /* obsolescent; will be withdrawn */ +# define YYSTYPE_IS_DECLARED 1 +#endif + +extern YYSTYPE yylval; + +#ifdef YYPARSE_PARAM +#if defined __STDC__ || defined __cplusplus +int yyparse (void *YYPARSE_PARAM); +#else +int yyparse (); +#endif +#else /* ! YYPARSE_PARAM */ +#if defined __STDC__ || defined __cplusplus +int yyparse (void); +#else +int yyparse (); +#endif +#endif /* ! YYPARSE_PARAM */ + +#endif /* !YY_YY_PARSE_Y_H_INCLUDED */ diff --git a/doc/specs/parse_y.y b/doc/specs/parse_y.y new file mode 100644 index 0000000..b195f5d --- /dev/null +++ b/doc/specs/parse_y.y @@ -0,0 +1,297 @@ + +%{ +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#define MAXLINE 1000 +#define INDENT_STRING " " +#define PAPER_WIDTH 74 + + int indent=0; + int line=1; + char *last_label=NULL; + + extern int yylex(void); + extern char *yytext; + extern void yyerror(const char *x); + extern char *get_label(const char *label); + extern void set_label(const char *label, const char *target); + char *new_counter(const char *key); +%} + +%union { + int def; + char *string; +} + +%token NEW_COUNTER LABEL HASH CHAR NEWLINE NO_INDENT RIGHT +%type <string> stuff text + +%start doc + +%% + +doc: +| doc NEWLINE { + printf("\n"); + ++line; +} +| doc stuff NEWLINE { + if (strlen($2) > (PAPER_WIDTH-(indent ? strlen(INDENT_STRING):0))) { + yyerror("line too long"); + } + printf("%s%s\n", indent ? INDENT_STRING:"", $2); + free($2); + indent = 1; + ++line; +} +| doc stuff RIGHT stuff NEWLINE { + char fixed[PAPER_WIDTH+1]; + int len; + + len = PAPER_WIDTH-(strlen($2)+strlen($4)); + + if (len >= 0) { + memset(fixed, ' ', len); + fixed[len] = '\0'; + } else { + yyerror("line too wide"); + fixed[0] = '\0'; + } + printf("%s%s%s\n", $2, fixed, $4); + free($2); + free($4); + indent = 1; + ++line; +} +| doc stuff RIGHT stuff RIGHT stuff NEWLINE { + char fixed[PAPER_WIDTH+1]; + int len, l; + + len = PAPER_WIDTH-(strlen($2)+strlen($4)); + + if (len < 0) { + len = 0; + yyerror("line too wide"); + } + + l = len/2; + memset(fixed, ' ', l); + fixed[l] = '\0'; + printf("%s%s%s", $2, fixed, $4); + free($2); + free($4); + + l = (len+1)/2; + memset(fixed, ' ', l); + fixed[l] = '\0'; + printf("%s%s\n", fixed, $6); + free($6); + + indent = 1; + ++line; +} +| doc stuff RIGHT stuff RIGHT stuff NEWLINE { + char fixed[PAPER_WIDTH+1]; + int len, l; + + len = PAPER_WIDTH-(strlen($2)+strlen($4)); + + if (len < 0) { + len = 0; + yyerror("line too wide"); + } + + l = len/2; + memset(fixed, ' ', l); + fixed[l] = '\0'; + printf("%s%s%s", $2, fixed, $4); + free($2); + free($4); + + l = (len+1)/2; + memset(fixed, ' ', l); + fixed[l] = '\0'; + printf("%s%s\n", fixed, $6); + free($6); + + indent = 1; + ++line; +} +; + +stuff: { + $$ = strdup(""); +} +| stuff text { + $$ = malloc(strlen($1)+strlen($2)+1); + sprintf($$,"%s%s", $1, $2); + free($1); + free($2); +} +; + +text: CHAR { + $$ = strdup(yytext); +} +| text CHAR { + $$ = malloc(strlen($1)+2); + sprintf($$,"%s%s", $1, yytext); + free($1); +} +| NO_INDENT { + $$ = strdup(""); + indent = 0; +} +| HASH { + $$ = strdup("#"); +} +| LABEL { + if (($$ = get_label(yytext)) == NULL) { + set_label(yytext, last_label); + $$ = strdup(""); + } +} +| NEW_COUNTER { + $$ = new_counter(yytext); +} +; + +%% + +typedef struct node_s { + struct node_s *left, *right; + const char *key; + char *value; +} *node_t; + +node_t label_root = NULL; +node_t counter_root = NULL; + +static const char *find_key(node_t root, const char *key) +{ + while (root) { + int cmp = strcmp(key, root->key); + + if (cmp > 0) { + root = root->right; + } else if (cmp) { + root = root->left; + } else { + return root->value; + } + } + return NULL; +} + +static node_t set_key(node_t root, const char *key, const char *value) +{ + if (root) { + int cmp = strcmp(key, root->key); + if (cmp > 0) { + root->right = set_key(root->right, key, value); + } else if (cmp) { + root->left = set_key(root->left, key, value); + } else { + free(root->value); + root->value = strdup(value); + } + } else { + root = malloc(sizeof(struct node_s)); + root->right = root->left = NULL; + root->key = strdup(key); + root->value = strdup(value); + } + return root; +} + +void yyerror(const char *x) +{ + fprintf(stderr, "line %d: %s\n", line, x); +} + +char *get_label(const char *label) +{ + const char *found = find_key(label_root, label); + + if (found) { + return strdup(found); + } + return NULL; +} + +void set_label(const char *label, const char *target) +{ + if (target == NULL) { + yyerror("no hanging value for label"); + target = "<??" ">"; /* avoid trigraph warning */ + } + label_root = set_key(label_root, label, target); +} + +char *new_counter(const char *key) +{ + int i=0, j, ndollars = 0; + const char *old; + char *new; + + if (key[i++] != '#') { + yyerror("bad index"); + return strdup("<???" ">"); /* avoid trigraph warning */ + } + + while (key[i] == '$') { + ++ndollars; + ++i; + } + + key += i; + old = find_key(counter_root, key); + new = malloc(20*ndollars); + + if (old) { + for (j=0; ndollars > 1 && old[j]; ) { + if (old[j++] == '.' && --ndollars <= 0) { + break; + } + } + if (j) { + strncpy(new, old, j); + } + if (old[j]) { + i = atoi(old+j); + } else { + new[j++] = '.'; + i = 0; + } + } else { + j=0; + while (--ndollars > 0) { + new[j++] = '0'; + new[j++] = '.'; + } + i = 0; + } + new[j] = '\0'; + sprintf(new+j, "%d", ++i); + + counter_root = set_key(counter_root, key, new); + + if (last_label) { + free(last_label); + } + last_label = strdup(new); + + return new; +} + +int +main(void) +{ + return yyparse(); +} diff --git a/doc/specs/rfc86.0.txt b/doc/specs/rfc86.0.txt new file mode 100644 index 0000000..b8c635a --- /dev/null +++ b/doc/specs/rfc86.0.txt @@ -0,0 +1,1845 @@ + + + + + + + + + Open Software Foundation V. Samar (SunSoft) + Request For Comments: 86.0 R. Schemers (SunSoft) + October 1995 + + + + UNIFIED LOGIN WITH + PLUGGABLE AUTHENTICATION MODULES (PAM) + + + 1. INTRODUCTION + + Since low-level authentication mechanisms constantly evolve, it is + important to shield the high-level consumers of these mechanisms + (system-entry services and users) from such low-level changes. With + the Pluggable Authentication Module (PAM) framework, we can provide + pluggability for a variety of system-entry services -- not just + system authentication _per se_, but also for account, session and + password management. PAM's ability to _stack_ authentication modules + can be used to integrate `login' with different authentication + mechanisms such as RSA, DCE, and Kerberos, and thus unify login + mechanisms. The PAM framework can also provide easy integration of + smart cards into the system. + + Modular design and pluggability have become important for users who + want ease of use. In the PC hardware arena, no one wants to set the + interrupt vector numbers or resolve the addressing conflict between + various devices. In the software arena, people also want to be able + to replace components easily for easy customization, maintenance, and + upgrades. + + Authentication software deserves special attention because + authentication forms a very critical component of any secure computer + system. The authentication infrastructure and its components may + have to be modified or replaced either because some deficiencies have + been found in the current algorithms, or because sites want to + enforce a different security policy than what was provided by the + system vendor. The replacement and modification should be done in + such a way that the user is not affected by these changes. + + The solution has to address not just how the applications use the new + authentication mechanisms in a generic fashion, but also how the user + will be authenticated to these mechanisms in a generic way. The + former is addressed by GSS-API [Linn 93], while this RFC addresses + the later; these two efforts are complementary to each other. + + Since most system-entry services (for example, `login', `dtlogin', + `rlogin', `ftp', `rsh') may want to be independent of the specific + authentication mechanisms used by the machine, it is important that + there be a framework for _plugging_ in various mechanisms. This + requires that the system applications use a standard API to interact + + + + Samar, Schemers Page 1 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + with the authentication services. If these system-entry services + remain independent of the actual mechanism used on that machine, the + system administrator can install suitable authentication modules + without requiring changes to these applications. + + For any security system to be successful, it has to be easy to use. + In the case of authentication, the single most important ease-of-use + characteristic is that the user should not be required to learn about + various ways of authentication and remember multiple passwords. + Ideally, there should be one all-encompassing authentication system + where there is only one password, but for heterogeneous sites, + multiple authentication mechanisms have to co-exist. The problem of + integrating multiple authentication mechanisms such as Kerberos + [Steiner 88], RSA [Rivest 78], and Diffie-Hellman [Diffie 76, Taylor + 88], is also referred to as _integrated login_, or _unified login_ + problem. Even if the user has to use multiple authentication + mechanisms, the user should not be forced to type multiple passwords. + Furthermore, the user should be able to use the new network identity + without taking any further actions. The key here is in modular + integration of the network authentication technologies with `login' + and other system-entry services. + + In this RFC we discuss the architecture and design of pluggable + authentication modules. This design gives the capability to use + field-replaceable authentication modules along with unified login + capability. It thus provides for both _pluggability_ and _ease-of- + use_. + + The RFC is organized as follows. We first motivate the need for a + generic way to authenticate the user by various system-entry services + within the operating system. We describe the goals and constraints + of the design. This leads to the architecture, description of the + interfaces, and _stacking_ of modules to get unified login + functionality. We then describe our experience with the design, and + end with a description of future work. + + + 2. OVERVIEW OF IDENTIFICATION AND AUTHENTICATION MECHANISMS + + An identification and authentication ("I&A") mechanism is used to + establish a user's identity the system (i.e., to a local machine's + operating system) and to other principals on the network. On a + typical UNIX system, there are various ports of entry into the + system, such as `login', `dtlogin', `rlogin', `ftp', `rsh', `su', and + `telnet'. In all cases, the user has to be identified and + authenticated before granting appropriate access rights to the user. + The user identification and authentication for all these entry points + needs to be coordinated to ensure a secure system. + + In most of the current UNIX systems, the login mechanism is based + upon verification of the password using the modified DES algorithm. + + + + Samar, Schemers Page 2 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + The security of the implementation assumes that the password cannot + be guessed, and that the password does not go over the wire in the + clear. These assumptions, however, are not universally valid. + Various programs are now available freely on the Internet that can + run dictionary attack against the encrypted password. Further, some + of the network services (for example, `rlogin', `ftp', `telnet') send + the password over in clear, and there are "sniffer" programs freely + available to steal these passwords. The classical assumptions may be + acceptable on a trusted network, but in an open environment there is + a need to use more restrictive and stronger authentication + mechanisms. Examples of such mechanisms include Kerberos, RSA, + Diffie-Hellman, one-time password [Skey 94], and challenge-response + based smart card authentication systems. Since this list will + continue to evolve, it is important that the system-entry services do + not have hard-coded dependencies on any of these authentication + mechanisms. + + + 3. DESIGN GOALS + + The goals of the PAM framework are as follows: + + (a) The system administrator should be able to choose the default + authentication mechanism for the machine. This can range from + a simple password-based mechanism to a biometric or a smart + card based system. + + (b) It should be possible to configure the user authentication + mechanism on a per application basis. For example, a site may + require S/Key password authentication for `telnet' access, + while allowing machine `login' sessions with just UNIX password + authentication. + + (c) The framework should support the display requirements of the + applications. For example, for a graphical login session such + as `dtlogin', the user name and the password may have to be + entered in a new window. For networking system-entry + applications such as `ftp' and `telnet', the user name and + password has to be transmitted over the network to the client + machine. + + (d) It should be possible to configure multiple authentication + protocols for each of those applications. For example, one may + want the users to get authenticated by both Kerberos and RSA + authentication systems. + + (e) The system administrator should be able to _stack_ multiple + user authentication mechanisms such that the user is + authenticated with all authentication protocols without + retyping the password. + + + + + Samar, Schemers Page 3 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + (f) The architecture should allow for multiple passwords if + necessary to achieve higher security for users with specific + security requirements. + + (g) The system-entry services should not be required to change when + the underlying mechanism changes. This can be very useful for + third-party developers because they often do not have the + source code for these services. + + (h) The architecture should provide for a _pluggable_ model for + system authentication, as well as for other related tasks such + as password, account, and session management. + + (i) For backward-compatibility reasons, the PAM API should support + the authentication requirements of the current system-entry + services. + + There are certain issues that the PAM framework does not specifically + address: + + (a) We focus only on providing a generic scheme through which users + use passwords to establish their identities to the machine. + Once the identity is established, how the identity is + communicated to other interested parties is outside the scope + of this design. There are efforts underway at IETF [Linn 93] + to develop a Generic Security Services Application Interface + (GSSAPI) that can be used by applications for secure and + authenticated communication without knowing the underlying + mechanism. + + (b) The _single-signon_ problem of securely transferring the + identity of the caller to a remote site is not addressed. For + example, the problem of delegating credentials from the + `rlogin' client to the other machine without typing the + password is not addressed by our work. We also do not address + the problem of sending the passwords over the network in the + clear. + + (c) We do not address the source of information obtained from the + "`getXbyY()'" family of calls (e.g., `getpwnam()'). Different + operating systems address this problem differently. For + example, Solaris uses the name service switch (NSS) to + determine the source of information for the "`getXbyY()'" + calls. It is expected that data which is stored in multiple + sources (such as passwd entries in NIS+ and the DCE registry) + is kept in sync using the appropriate commands (such as + `passwd_export'). + + + + + + + + Samar, Schemers Page 4 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + 4. OVERVIEW OF THE PAM FRAMEWORK + + We propose that the goals listed above can be met through a framework + in which authentication modules can be _plugged_ independently of the + application. We call this the _Pluggable Authentication Modules_ + (PAM) framework. + + The core components of the PAM framework are the authentication + library API (the front end) and the authentication mechanism-specific + modules (the back end), connected through the Service Provider + Interface (SPI). Applications write to the PAM API, while the + authentication-system providers write to the PAM SPI and supply the + back end modules that are independent of the application. + + ftp telnet login (Applications) + | | | + | | | + +--------+--------+ + | + +-----+-----+ + | PAM API | <-- pam.conf file + +-----+-----+ + | + +--------+--------+ + UNIX Kerberos Smart Cards (Mechanisms) + + Figure 1: The Basic PAM Architecture + + Figure 1 illustrates the relationship between the application, the + PAM library, and the authentication modules. Three applications + (`login', `telnet' and `ftp') are shown which use the PAM + authentication interfaces. When an application makes a call to the + PAM API, it loads the appropriate authentication module as determined + by the configuration file, `pam.conf'. The request is forwarded to + the underlying authentication module (for example, UNIX password, + Kerberos, smart cards) to perform the specified operation. The PAM + layer then returns the response from the authentication module to the + application. + + PAM unifies system authentication and access control for the system, + and allows plugging of associated authentication modules through well + defined interfaces. The plugging can be defined through various + means, one of which uses a configuration file, such as the one in + Table 1. For each of the system applications, the file specifies the + authentication module that should be loaded. In the example below, + `login' uses the UNIX password module, while `ftp' and `telnet' use + the S/Key module. + + + + + + + + Samar, Schemers Page 5 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + Table 1: A Simplified View of a Sample PAM Configuration File. + + service module_path + ------- ----------- + login pam_unix.so + ftp pam_skey.so + telnet pam_skey.so + + Authentication configuration is only one aspect of this interface. + Other critical components include account management, session + management, and password management. For example, the `login' + program may want to verify not only the password but also whether the + account has aged or expired. Generic interfaces also need to be + provided so that the password can be changed according to the + requirements of the module. Furthermore, the application may want to + log information about the current session as determined by the + module. + + Not all applications or services may need all of the above + components, and not each authentication module may need to provide + support for all of the interfaces. For example, while `login' may + need access to all four components, `su' may need access to just the + authentication component. Some applications may use some specific + authentication and password management modules but share the account + and session management modules with others. + + This reasoning leads to a partitioning of the entire set of + interfaces into four areas of functionality: (1) authentication, (2) + account, (3) session, and (4) password. The concept of PAM was + extended to these functional areas by implementing each of them as a + separate pluggable module. + + Breaking the functionality into four modules helps the module + providers because they can use the system-provided libraries for the + modules that they are not changing. For example, if a supplier wants + to provide a better version of Kerberos, they can just provide that + new authentication and password module, and reuse the existing ones + for account and session. + + 4.1. Module Description + + More details on specific API's are described in Appendix A. A brief + description of four modules follows: + + (a) Authentication management: This set includes the + `pam_authenticate()' function to authenticate the user, and the + `pam_setcred()' interface to set, refresh or destroy the user + credentials. + + (b) Account management: This set includes the `pam_acct_mgmt()' + function to check whether the authenticated user should be + + + + Samar, Schemers Page 6 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + given access to his/her account. This function can implement + account expiration and access hour restrictions. + + (c) Session management: This set includes the `pam_open_session()' + and `pam_close_session()' functions for session management and + accounting. For example, the system may want to store the + total time for the session. + + (d) Password management: This set includes a function, + `pam_chauthtok()', to change the password. + + + 5. FRAMEWORK INTERFACES + + The PAM framework further provides a set of administrative interfaces + to support the above modules and to provide for application-module + communication. There is no corresponding service provider interface + (SPI) for such functions. + + 5.1. Administrative Interfaces + + Each set of PAM transactions starts with `pam_start()' and ends with + the `pam_end()' function. The interfaces `pam_get_item()' and + `pam_set_item()' are used to read and write the state information + associated with the PAM transaction. + + If there is any error with any of the PAM interfaces, the error + message can be printed with `pam_strerror()'. + + 5.2. Application-Module Communication + + During application initialization, certain data such as the user name + is saved in the PAM framework layer through `pam_start()' so that it + can be used by the underlying modules. The application can also pass + opaque data to the module which the modules will pass back while + communicating with the user. + + 5.3. User-Module Communication + + The `pam_start()' function also passes conversation function that has + to be used by the underlying modules to read and write module + specific authentication information. For example, these functions + can be used to prompt the user for the password in a way determined + by the application. PAM can thus be used by graphical, non- + graphical, or networked applications. + + + + + + + + + + Samar, Schemers Page 7 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + 5.4. Inter-Module Communication + + Though the modules are independent, they can share certain common + information about the authentication session such as user name, + service name, password, and conversation function through the + `pam_get_item()' and `pam_set_item()' interfaces. These API's can + also be used by the application to change the state information after + having called `pam_start()' once. + + 5.5. Module State Information + + The PAM service modules may want to keep certain module-specific + state information about the session. The interfaces `pam_get_data()' + and `pam_set_data()' can be used by the service modules to access and + update module-specific information as needed from the PAM handle. + The modules can also attach a cleanup function with the data. The + cleanup function is executed when `pam_end()' is called to indicate + the end of the current authentication activity. + + Since the PAM modules are loaded upon demand, there is no direct + module initialization support in the PAM framework. If there are + certain initialization tasks that the PAM service modules have to do, + they should be done upon the first invocation. However, if there are + certain clean-up tasks to be done when the authentication session + ends, the modules should use `pam_set_data()' to specify the clean-up + functions, which would be called when `pam_end()' is called by the + application. + + + 6. MODULE CONFIGURATION MANAGEMENT + + Table 2 shows an example of a configuration file `pam.conf' with + support for authentication, session, account, and password management + modules. `login' has three entries: one each for authentication + processing, session management and account management. Each entry + specifies the module name that should be loaded for the given module + type. In this example, the `ftp' service uses the authentication and + session modules. Note that all services here share the same session + management module, while having different authentication modules. + + + + + + + + + + + + + + + + Samar, Schemers Page 8 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + Table 2: Configuration File (pam.conf) with Different Modules + and Control Flow + + service module_type control_flag module_path options + ------- ----------- ------------ ----------- ------- + login auth required pam_unix_auth.so nowarn + login session required pam_unix_session.so + login account required pam_unix_account.so + ftp auth required pam_skey_auth.so debug + ftp session required pam_unix_session.so + telnet session required pam_unix_session.so + login password required pam_unix_passwd.so + passwd password required pam_unix_passwd.so + OTHER auth required pam_unix_auth.so + OTHER session required pam_unix_session.so + OTHER account required pam_unix_account.so + + The first field, _service_, denotes the service (for example, + `login', `passwd', `rlogin'). The name `OTHER' indicates the module + used by all other applications that have not been specified in this + file. This name can also be used if all services have the same + requirements. In the example, since all the services use the same + session module, we could have replaced those lines with a single + `OTHER' line. + + The second field, _module_type_, indicates the type of the PAM + functional module. It can be one of `auth', `account', `session', or + `password' modules. + + The third field, _control_flag_ determines the behavior of stacking + multiple modules by specifying whether any particular module is + _required_, _sufficient_, or _optional_. The next section describes + stacking in more detail. + + The fourth field, _module_path_, specifies the location of the + module. The PAM framework loads this module upon demand to invoke + the required function. + + The fifth field, _options_, is used by the PAM framework layer to + pass module specific options to the modules. It is up to the module + to parse and interpret the options. This field can be used by the + modules to turn on debugging or to pass any module specific + parameters such as a timeout value. It is also used to support + unified login as described below. The options field can be used by + the system administrator to fine-tune the PAM modules. + + If any of the fields are invalid, or if a module is not found, that + line is ignored and the error is logged as a critical error via + `syslog(3)'. If no entries are found for the given module type, then + the PAM framework returns an error to the application. + + + + + Samar, Schemers Page 9 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + 7. INTEGRATING MULTIPLE AUTHENTICATION SERVICES WITH STACKING + + In the world of heterogeneous systems, the system administrator often + has to deal with the problem of integrating multiple authentication + mechanisms. The user is often required to know about the + authentication command of the new authentication module (for example, + `kinit', `dce_login') after logging into the system. This is not + user-friendly because it forces people to remember to type the new + command and enter the new password. This functionality should be + invisible instead of burdening the user with it. + + There are two problems to be addressed here: + + (a) Supporting multiple authentication mechanisms. + + (b) Providing unified login in the presence of multiple mechanisms. + + In the previous section, we described how one could replace the + default authentication module with any other module of choice. Now + we demonstrate how the same model can be extended to provide support + for multiple modules. + + 7.1. Design for Stacked Modules + + One possibility was to provide hard-coded rules in `login' or other + applications requiring authentication services [Adamson 95]. But + this becomes very specific to the particular combination of + authentication protocols, and also requires the source code of the + application. Digital's Security Integration Architecture [SIA 95] + addresses this problem by specifying the same list of authentication + modules for all applications. Since requirements for various + applications can vary, it is essential that the configuration be on a + per-application basis. + + To support multiple authentication mechanisms, the PAM framework was + extended to support _stacking_. When any API is called, the back + ends for the stacked modules are invoked in the order listed, and the + result returned to the caller. In Figure 2, the authentication + service of `login' is stacked and the user is authenticated by UNIX, + Kerberos, and RSA authentication mechanisms. Note that in this + example, there is no stacking for session or account management + modules. + + + + + + + + + + + + + Samar, Schemers Page 10 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + login + | + +--------+--------+ + | | | + session auth account + | | | + +--+--+ +--+--+ +--+--+ + | PAM | | PAM | | PAM | + +--+--+ +--+--+ +--+--+ + | | | + UNIX UNIX UNIX + session auth account + | + Kerberos + auth + | + RSA + auth + + Figure 2: Stacking With the PAM Architecture + + Stacking is specified through additional entries in the configuration + file shown earlier. As shown in Table 2, for each application (such + as `login') the configuration file can specify multiple mechanisms + that have to be invoked in the specified order. When mechanisms + fail, the _control_flag_ decides which error should be returned to + the application. Since the user should not know which authentication + module failed when a bad password was typed, the PAM framework + continues to call other authentication modules on the stack even on + failure. The semantics of the control flag are as follows: + + (a) `required': With this flag, the module failure results in the + PAM framework returning the error to the caller _after_ + executing all other modules on the stack. For the function to + be able to return success to the application all `required' + modules have to report success. This flag is normally set when + authentication by this module is a _must_. + + (b) `optional': With this flag, the PAM framework ignores the + module failure and continues with the processing of the next + module in sequence. This flag is used when the user is allowed + to login even if that particular module has failed. + + (c) `sufficient': With this flag, if the module succeeds the PAM + framework returns success to the application immediately + without trying any other modules. For failure cases, the + _sufficient_ modules are treated as `optional'. + + Table 3 shows a sample configuration file that stacks the `login' + command. Here the user is authenticated by UNIX, Kerberos, and RSA + authentication services. The `required' key word for _control_flag_ + + + + Samar, Schemers Page 11 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + enforces that the user is allowed to login only if he/she is + authenticated by _both_ UNIX and Kerberos services. RSA + authentication is optional by virtue of the `optional' key word in + the _control_flag_ field. The user can still log in even if RSA + authentication fails. + + Table 3: PAM Configuration File with Support for Stacking + + service module_type control_flag module_path options + ------- ----------- ------------ ----------- ------- + login auth required pam_unix.so debug + login auth required pam_kerb.so use_mapped_pass + login auth optional pam_rsa.so use_first_pass + + Table 4 illustrates the use of the sufficient flag for the `rlogin' + service. The Berkeley `rlogin' protocol specifies that if the remote + host is trusted (as specified in the `/etc/hosts.equiv' file or in + the `.rhosts' file in the home directory of the user), then the + `rlogin' daemon should not require the user to type the password. If + this is not the case, then the user is required to type the password. + Instead of hard coding this policy in the `rlogin' daemon, this can + be expressed with the `pam.conf' file in Table 4. The PAM module + `pam_rhosts_auth.so.1' implements the `.rhosts' policy described + above. If a site administrator wants to enable remote login with + only passwords, then the first line should be deleted. + + Table 4: PAM Configuration File for the rlogin service + + service module_type control_flag module_path options + ------- ----------- ------------ ----------- ------- + rlogin auth sufficient pam_rhosts_auth.so + rlogin auth required pam_unix.so + + 7.2. Password-Mapping + + Multiple authentication mechanisms on a machine can lead to multiple + passwords that users have to remember. One attractive solution from + the ease-of-use viewpoint is to use the same password for all + mechanisms. This, however, can also weaken the security because if + that password were to be compromised in any of the multiple + mechanisms, all mechanisms would be compromised at the same time. + Furthermore, different authentication mechanisms may have their own + distinctive password requirements in regards to its length, allowed + characters, time interval between updates, aging, locking, and so + forth. These requirements make it problematic to use the same + password for multiple authentication mechanisms. + + The solution we propose, while not precluding use of the same + password for every mechanism, allows for a different password for + each mechanism through what we call _password-mapping_. This + basically means using the user's _primary_ password to encrypt the + + + + Samar, Schemers Page 12 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + user's other (_secondary_) passwords, and storing these encrypted + passwords in a place where they are available to the user. Once the + primary password is verified, the authentication modules would obtain + the other passwords for their own mechanisms by decrypting the + mechanism-specific encrypted password with the primary password, and + passing it to the authentication service. The security of this + design for password-mapping assumes that the primary password is the + user's strongest password, in terms of its unguessability (length, + type and mix of characters used, etc.). + + If there is any error in password-mapping, or if the mapping does not + exist, the user will be prompted for the password by each + authentication module. + + To support password-mapping, the PAM framework saves the primary + password and provides it to stacked authentication modules. The + password is cleared out before the `pam_authenticate' function + returns. + + How the password is encrypted depends completely on the module + implementation. The encrypted secondary password (also called a + "mapped password") can be stored in a trusted or untrusted place, + such as a smart card, a local file, or a directory service. If the + encrypted passwords are stored in an untrusted publicly accessible + place, this does provide an intruder with opportunities for potential + dictionary attack. + + Though password-mapping is voluntary, it is recommended that all + module providers add support for the following four mapping options: + + (a) `use_first_pass': Use the same password used by the first + mechanism that asked for a password. The module should not ask + for the password if the user cannot be authenticated by the + first password. This option is normally used when the system + administrator wants to enforce the same password across + multiple modules. + + (b) `try_first_pass': This is the same as `use_first_pass', except + that if the primary password is not valid, it should prompt the + user for the password. + + (c) `use_mapped_pass': Use the password-mapping scheme to get the + actual password for this module. One possible implementation + is to get the mapped-password using the XFN API [XFN 94], and + decrypt it with the primary password to get the module-specific + password. The module should not ask for the password if the + user cannot be authenticated by the first password. The XFN + API allows user-defined attributes (such as _mapped-password_) + to be stored in the _user-context_. Using the XFN API is + particularly attractive because support for the XFN may be + found on many systems in the future. + + + + Samar, Schemers Page 13 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + (d) `try_mapped_pass': This is the same as `use_mapped_pass', + except that if the primary password is not valid, it should + prompt the user for the password. + + When passwords get updated, the PAM framework stores both the old as + well as the new password to be able to inform other dependent + authentication modules about the change. Other modules can use this + information to update the encrypted password without forcing the user + to type the sequence of passwords again. The PAM framework clears + out the passwords before returning to the application. + + Table 3 illustrates how the same password can be used by `login' for + authenticating to the standard UNIX login, Kerberos and RSA services. + Once the user has been authenticated to the primary authentication + service (UNIX `login' in this example) with the primary password, the + option `use_mapped_pass' indicates to the Kerberos module that it + should use the primary password to decrypt the stored Kerberos + password and then use the Kerberos password to get the ticket for the + ticket-granting-service. After that succeeds, the option + `use_first_pass' indicates to the RSA module that instead of + prompting the user for a password, it should use the primary password + typed earlier for authenticating the user. Note that in this + scenario, the user has to enter the password just once. + + Note that if a one-time password scheme (e.g., S/Key) is used, + password mapping cannot apply. + + 7.3. Implications of Stacking on the PAM Design + + Because of the stacking capability of PAM, we have designed the PAM + API's to not return any data to the application, except status. If + this were not the case, it would be difficult for the PAM framework + to decide which module should return data to the application. When + there is any error, the application does not know which of the + modules failed. This behavior enables (even requires) the + application to be completely independent from the modules. + + Another design decision we have made is that PAM gives only the user + name to all the underlying PAM modules, hence it is the + responsibility of the PAM modules to convert the name to their own + internal format. For example, the Kerberos module may have to + convert the UNIX user name to a Kerberos principal name. + + Stacking also forces the modules to be designed such that they can + occur anywhere in the stack without any side-effects. + + Since modules such as the authentication and the password module are + very closely related, it is important they be configured in the same + order and with compatible options. + + + + + + Samar, Schemers Page 14 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + 8. INTEGRATION WITH SMART CARDS + + Many networking authentication protocols require possession of a long + key to establish the user identity. For ease-of-use reasons, that + long key is normally encrypted with the user's password so that the + user is not required to memorize it. However, weak passwords can be + compromised through a dictionary attack and thus undermine the + stronger network authentication mechanism. Furthermore, the + encrypted data is normally stored in a centrally accessible service + whose availability depends upon the reliability of the associated + service. Solutions have been proposed to use a pass-phrase or one- + time-password, but those are much longer than the regular eight + character passwords traditionally used with UNIX `login'. This makes + the solution user-unfriendly because it requires longer strings to be + remembered and typed. + + For most authentication protocol implementations, the trust boundary + is the local machine. This assumption may not be valid in cases + where the user is mobile and has to use publicly available networked + computers. In such cases, it is required that the clear text of the + key or the password never be made available to the machine. + + Smart cards solve the above problems by reducing password exposure by + supporting a _two factor_ authentication mechanism: the first with + the possession of the card, and the second with the knowledge of the + PIN associated with the card. Not only can the smart cards be a + secure repository of multiple passwords, they can also provide the + encryption and authentication functions such that the long (private) + key is never exposed outside the card. + + The PAM framework allows for integrating smart cards to the system by + providing a smart card specific module for authentication. + Furthermore, the unified login problem is simplified because the + multiple passwords for various authentication mechanisms can be + stored on the smart card itself. This can be enabled by adding a + suitable key-word such as `use_smart_card' in the _options_ field. + + + 9. SECURITY ISSUES + + It is important to understand the impact of PAM on the security of + any system so that the site-administrator can make an informed + decision. + + (a) Sharing of passwords with multiple authentication mechanisms. + + If there are multiple authentication modules, one possibility + is to use the same password for all of them. If the password + for any of the multiple authentication system is compromised, + the user's password in all systems would be compromised. If + this is a concern, then multiple passwords might be considered + + + + Samar, Schemers Page 15 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + at the cost of ease-of-use. + + (b) Password-mapping. + + This technique of encrypting all other passwords with the + primary password assumes that it is lot more difficult to crack + the primary password and that reasonable steps have been taken + to ensure limited availability of the encrypted primary + password. If this is not done, an intruder could target the + primary password as the first point of dictionary attack. If + one of the other modules provide stronger security than the + password based security, the site would be negating the strong + security by using password-mapping. If this is a concern, then + multiple passwords might be considered at the cost of ease-of- + use. If smart cards are used, they obviate the need for + password-mapping completely. + + (c) Security of the configuration file. + + Since the policy file dictates how the user is authenticated, + this file should be protected from unauthorized modifications. + + (d) Stacking various PAM modules. + + The system administrator should fully understand the + implications of stacking various modules that will be installed + on the system and their respective orders and interactions. + The composition of various authentication modules should be + carefully examined. The trusted computing base of the machine + now includes the PAM modules. + + + 10. EXPERIENCE WITH PAM + + The PAM framework was first added in Solaris 2.3 release as a private + internal interface. PAM is currently being used by several system + entry applications such as `login', `passwd', `su', `dtlogin', + `rlogind', `rshd', `telnetd', `ftpd', `in.rexecd', `uucpd', `init', + `sac', and `ttymon'. We have found that PAM provides an excellent + framework to encapsulate the authentication-related tasks for the + entire system. The Solaris 2.3 PAM API's were hence enhanced and + simplified to support stacking. + + PAM modules have been developed for UNIX, DCE, Kerberos, S/Key, + remote user authentication, and dialpass authentication. Other PAM + modules are under development, and integration with smart cards is + being planned. + + Some third parties have used the PAM interface to extend the security + mechanisms offered by the Solaris environment. + + + + + Samar, Schemers Page 16 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + The PAM API has been accepted by Common Desktop Environment (CDE) + vendors as the API to be used for integrating the graphical interface + for login, `dtlogin' with multiple authentication mechanisms. + + + 11. FUTURE WORK + + Amongst the various components of PAM, the password component needs + to be carefully examined to see whether the stacking semantics are + particularly applicable, and how PAM should deal with partial + failures when changing passwords. + + The _control_flag_ of the configuration file can be extended to + include other semantics. For example, if the error is "name service + not available", one may want to retry. It is also possible to offer + semantics of "return success if any of the modules return success". + + In an earlier section, we had mentioned integration of smart cards + with PAM. Though we feel that integration should be straight forward + from the PAM architecture point of view, there may be some issues + with implementation because the interfaces to the smart cards have + not yet been standardized. + + One possible extension to PAM is to allow the passing of module- + specific data between applications and PAM modules. For example, the + `login' program likes to build its new environment from a select list + of variables, yet the DCE module needs the `KRB5CCNAME' variable to + be exported to the child process. For now we have modified the + `login' program to explicitly export the `KRB5CCNAME' variable. + + Administrative tools are needed to help system administrators modify + `pam.conf', and perform sanity checks on it (i.e., a `pam_check' + utility). + + + 12. CONCLUSION + + The PAM framework and the module interfaces provide pluggability for + user authentication, as well as for account, session and password + management. The PAM architecture can be used by `login' and by all + other system-entry services, and thus ensure that all entry points + for the system have been secured. This architecture enables + replacement and modification of authentication modules in the field + to secure the system against the newly found weaknesses without + changing any of the system services. + + The PAM framework can be used to integrate `login' and `dtlogin' with + different authentication mechanisms such as RSA and Kerberos. + Multiple authentication systems can be accessed with the same + password. The PAM framework also provides easy integration of smart + cards into the system. + + + + Samar, Schemers Page 17 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + PAM provides complementary functionality to GSS-API, in that it + provides mechanisms through which the user gets authenticated to any + new system-level authentication service on the machine. GSS-API then + uses the credentials for authenticated and secure communications with + other application-level service entities on the network. + + + 13. ACKNOWLEDGEMENTS + + PAM development has spanned several release cycles at SunSoft. + Shau-Ping Lo, Chuck Hickey, and Alex Choy did the first design and + implementation. Bill Shannon and Don Stephenson helped with the PAM + architecture. Rocky Wu prototyped stacking of multiple modules. + Paul Fronberg, Charlie Lai, and Roland Schemers made very significant + enhancements to the PAM interfaces and took the project to completion + within a very short time. Kathy Slattery wrote the PAM + documentation. John Perry integrated PAM within the CDE framework. + + + APPENDIX A. PAM API'S + + This appendix gives an informal description of the various interfaces + of PAM. Since the goal here is just for the reader to get a working + knowledge about the PAM interfaces, not all flags and options have + been fully defined and explained. The API's described here are + subject to change. + + The PAM Service Provider Interface is very similar to the PAM API, + except for one extra parameter to pass module-specific options to the + underlying modules. + + A.1. Framework Layer API's + + int + pam_start( + char *service_name, + char *user, + struct pam_conv *pam_conversation, + pam_handle_t **pamh + ); + + `pam_start()' is called to initiate an authentication transaction. + `pam_start()' takes as arguments the name of the service, the name of + the user to be authenticated, the address of the conversation + structure. `pamh' is later used as a handle for subsequent calls to + the PAM library. + + The PAM modules do not communicate directly with the user; instead + they rely on the application to perform all such interaction. The + application needs to provide the conversation functions, `conv()', + and associated application data pointers through a `pam_conv' + + + + Samar, Schemers Page 18 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + structure when it initiates an authentication transaction. The + module uses the `conv()' function to prompt the user for data, + display error messages, or text information. + + int + pam_end( + pam_handle_t *pamh, + int pam_status + ); + + `pam_end()' is called to terminate the PAM transaction as specified + by `pamh', and to free any storage area allocated by the PAM modules + with `pam_set_item()'. + + int + pam_set_item( + pam_handle_t *pamh, + int item_type, + void *item + ); + + int + pam_get_item( + pam_handle_t *pamh, + int item_type, + void **item); + + `pam_get_item()' and `pam_set_item()' allow the parameters specified + in the initial call to `pam_start()' to be read and updated. This is + useful when a particular parameter is not available when + `pam_start()' is called or must be modified after the initial call to + `pam_start()'. `pam_set_item()' is passed a pointer to the object, + `item', and its type, `item_type'. `pam_get_item()' is passed the + address of the pointer, `item', which is assigned the address of the + requested object. + + The `item_type' is one of the following: + + Table 5: Possible Values for Item_type + + Item Name Description + --------- ----------- + PAM_SERVICE The service name + PAM_USER The user name + PAM_TTY The tty name + PAM_RHOST The remote host name + PAM_CONV The pam_conv structure + PAM_AUTHTOK The authentication token (password) + PAM_OLDAUTHTOK The old authentication token + PAM_RUSER The remote user name + + + + + Samar, Schemers Page 19 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + Note that the values of `PAM_AUTHTOK' and `PAM_OLDAUTHTOK' are only + available to PAM modules and not to the applications. They are + explicitly cleared out by the framework before returning to the + application. + + char * + pam_strerror( + int errnum + ); + + `pam_strerror()' maps the error number to a PAM error message string, + and returns a pointer to that string. + + int + pam_set_data( + pam_handle_t *pamh, + char *module_data_name, + char *data, + (*cleanup)(pam_handle_t *pamh, char *data, + int error_status) + ); + + The `pam_set_data()' function stores module specific data within the + PAM handle. The `module_data_name' uniquely specifies the name to + which some data and cleanup callback function can be attached. The + cleanup function is called when `pam_end()' is invoked. + + int + pam_get_data( + pam_handle_t *pamh, + char *module_data_name, + void **datap + ); + + The `pam_get_data()' function obtains module-specific data from the + PAM handle stored previously by the `pam_get_data()' function. The + `module_data_name' uniquely specifies the name for which data has to + be obtained. This function is normally used to retrieve module + specific state information. + + A.2. Authentication API's + + int + pam_authenticate( + pam_handle_t *pamh, + int flags + ); + + The `pam_authenticate()' function is called to verify the identity of + the current user. The user is usually required to enter a password + or similar authentication token, depending upon the authentication + + + + Samar, Schemers Page 20 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + module configured with the system. The user in question is specified + by a prior call to `pam_start()', and is referenced by the + authentication handle, `pamh'. + + int + pam_setcred( + pam_handle_t *pamh, + int flags + ); + + The `pam_setcred()' function is called to set the credentials of the + current process associated with the authentication handle, `pamh'. + The actions that can be denoted through `flags' include credential + initialization, refresh, reinitialization and deletion. + + A.3. Account Management API + + int + pam_acct_mgmt( + pam_handle_t *pamh, + int flags + ); + + The function `pam_acct_mgmt()' is called to determine whether the + current user's account and password are valid. This typically + includes checking for password and account expiration, valid login + times, etc. The user in question is specified by a prior call to + `pam_start()', and is referenced by the authentication handle, + `pamh'. + + A.4. Session Management API's + + int + pam_open_session( + pam_handle_t *pamh, + int flags + ); + + `pam_open_session()' is called to inform the session modules that a + new session has been initialized. All programs which use PAM should + invoke `pam_open_session()' when beginning a new session. + + int + pam_close_session( + pam_handle_t *pamh, + int flags + ); + + Upon termination of this session, the `pam_close_session()' function + should be invoked to inform the underlying modules that the session + has terminated. + + + + Samar, Schemers Page 21 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + A.5. Password Management API's + + int + pam_chauthtok( + pam_handle_t *pamh, + int flags + ); + + `pam_chauthtok()' is called to change the authentication token + associated with the user referenced by the authentication handle + `pamh'. After the call, the authentication token of the user will be + changed in accordance with the authentication module configured on + the system. + + + APPENDIX B. SAMPLE PAM APPLICATION + + This appendix shows a sample `login' application which uses the PAM + API's. It is not meant to be a fully functional login program, as + some functionality has been left out in order to emphasize the use of + PAM API's. + + #include <security/pam_appl.h> + + static int login_conv(int num_msg, struct pam_message **msg, + struct pam_response **response, void *appdata_ptr); + + static struct pam_conv pam_conv = {login_conv, NULL}; + + static pam_handle_t *pamh; /* Authentication handle */ + + void + main(int argc, char *argv[], char **renvp) + { + + /* + * Call pam_start to initiate a PAM authentication operation + */ + + if ((pam_start("login", user_name, &pam_conv, &pamh)) + != PAM_SUCCESS) + login_exit(1); + + pam_set_item(pamh, PAM_TTY, ttyn); + pam_set_item(pamh, PAM_RHOST, remote_host); + + while (!authenticated && retry < MAX_RETRIES) { + status = pam_authenticate(pamh, 0); + authenticated = (status == PAM_SUCCESS); + } + + + + + Samar, Schemers Page 22 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + if (status != PAM_SUCCESS) { + fprintf(stderr,"error: %s\n", pam_strerror(status)); + login_exit(1); + } + + /* now check if the authenticated user is allowed to login. */ + + if ((status = pam_acct_mgmt(pamh, 0)) != PAM_SUCCESS) { + if (status == PAM_AUTHTOK_EXPIRED) { + status = pam_chauthtok(pamh, 0); + if (status != PAM_SUCCESS) + login_exit(1); + } else { + login_exit(1); + } + } + + /* + * call pam_open_session to open the authenticated session + * pam_close_session gets called by the process that + * cleans up the utmp entry (i.e., init) + */ + if (status = pam_open_session(pamh, 0) != PAM_SUCCESS) { + login_exit(status); + } + + /* set up the process credentials */ + setgid(pwd->pw_gid); + + /* + * Initialize the supplementary group access list. + * This should be done before pam_setcred because + * the PAM modules might add groups during the pam_setcred call + */ + initgroups(user_name, pwd->pw_gid); + + status = pam_setcred(pamh, PAM_ESTABLISH_CRED); + if (status != PAM_SUCCESS) { + login_exit(status); + } + + /* set the real (and effective) UID */ + setuid(pwd->pw_uid); + + pam_end(pamh, PAM_SUCCESS); /* Done using PAM */ + + /* + * Add DCE/Kerberos cred name, if any. + * XXX - The module specific stuff should be removed from login + * program eventually. This is better placed in DCE module and + * will be once PAM has routines for "exporting" environment + + + + Samar, Schemers Page 23 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + * variables. + */ + krb5p = getenv("KRB5CCNAME"); + if (krb5p != NULL) { + ENVSTRNCAT(krb5ccname, krb5p); + envinit[basicenv++] = krb5ccname; + } + environ = envinit; /* Switch to the new environment. */ + exec_the_shell(); + + /* All done */ + } + + /* + * login_exit - Call exit() and terminate. + * This function is here for PAM so cleanup can + * be done before the process exits. + */ + static void + login_exit(int exit_code) + { + if (pamh) + pam_end(pamh, PAM_ABORT); + exit(exit_code); + /*NOTREACHED*/ + } + + /* + * login_conv(): + * This is the conv (conversation) function called from + * a PAM authentication module to print error messages + * or garner information from the user. + */ + + static int + login_conv(int num_msg, struct pam_message **msg, + struct pam_response **response, void *appdata_ptr) + { + + while (num_msg--) { + switch (m->msg_style) { + + case PAM_PROMPT_ECHO_OFF: + r->resp = strdup(getpass(m->msg)); + break; + + case PAM_PROMPT_ECHO_ON: + (void) fputs(m->msg, stdout); + r->resp = malloc(PAM_MAX_RESP_SIZE); + fgets(r->resp, PAM_MAX_RESP_SIZE, stdin); + /* add code here to remove \n from fputs */ + + + + Samar, Schemers Page 24 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + break; + + case PAM_ERROR_MSG: + (void) fputs(m->msg, stderr); + break; + + case PAM_TEXT_INFO: + (void) fputs(m->msg, stdout); + break; + + default: + /* add code here to log error message, etc */ + break; + } + } + return (PAM_SUCCESS); + } + + + APPENDIX C. DCE MODULE + + This appendix describes a sample implementation of a DCE PAM module. + In order to simplify the description, we do not address the issues + raised by password-mapping or stacking. The intent is to show which + DCE calls are being made by the DCE module. + + The `pam_sm_*()' functions implement the PAM SPI functions which are + called from the PAM API functions. + + C.1. DCE Authentication Management + + The algorithm for authenticating with DCE (not including error + checking, prompting for passwords, etc.) is as follows: + + pam_sm_authenticate() + { + sec_login_setup_identity(...); + pam_set_data(...); + sec_login_valid_and_cert_ident(...); + } + + pam_sm_setcred() + { + pam_get_data(...); + sec_login_set_context(...); + } + + The `pam_sm_authenticate()' function for DCE uses the + `pam_set_data()' and `pam_get_data()' functions to keep state (like + the `sec_login_handle_t' context) between calls. The following + cleanup function is also registered and gets called when `pam_end()' + + + + Samar, Schemers Page 25 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + is called: + + dce_cleanup() + { + if (/* PAM_SUCCESS and + sec_login_valid_and_cert_ident success */) { + sec_login_release_context(...); + } else { + sec_login_purge_context(...); + } + } + + If everything was successful we release the login context, but leave + the credentials file intact. If the status passed to `pam_end()' was + not `PAM_SUCCESS' (i.e., a required module failed) we purge the login + context which also removes the credentials file. + + C.2. DCE Account Management + + The algorithm for DCE account management is as follows: + + pam_sm_acct_mgmt() + { + pam_get_data(...); + sec_login_inquire_net_info(...); + /* check for expired password and account */ + sec_login_free_net_info(...); + } + + The `sec_login_inquire_net_info()' function is called to obtain + information about when the user's account and/or password are going + to expire. A warning message is displayed (using the conversation + function) if the user's account or password is going to expire in the + near future, or has expired. These warning messages can be disabled + using the `nowarn' option in the `pam.conf' file. + + C.3. DCE Session Management + + The DCE session management functions are currently empty. They could + be modified to optionally remove the DCE credentials file upon + logout, etc. + + C.4. DCE Password Management + + The algorithm for DCE password management is as follows: + + + + + + + + + + Samar, Schemers Page 26 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + pam_sm_chauthtok + { + sec_rgy_site_open(...); + sec_rgy_acct_lookup(...); + sec_rgy_acct_passwd(...); + sec_rgy_site_close(...); + } + + The `sec_rgy_acct_passwd()' function is called to change the user's + password in the DCE registry. + + + REFERENCES + + [Adamson 95] W. A. Adamson, J. Rees, and P. Honeyman, "Joining + Security Realms: A Single Login for Netware and + Kerberos", CITI Technical Report 95-1, Center for + Information Technology Integration, University of + Michigan, Ann Arbor, MI, February 1995. + + [Diffie 76] W. Diffie and M. E. Hellman, "New Directions in + Cryptography", IEEE Transactions on Information + Theory, November 1976. + + [Linn 93] J. Linn, "Generic Security Service Application + Programming Interface", Internet RFC 1508, 1509, 1993. + + [Rivest 78] R. L. Rivest, A. Shamir, and L. Adleman., "A Method + for Obtaining Digital Signatures and Pubic-key + Cryptosystems", Communications of the ACM, 21(2), + 1978. + + [SIA 95] "Digital UNIX Security", Digital Equipment + Corporation, Order Number AA-Q0R2C-TE, July 1995. + + [Skey 94] N. M. Haller, "The S/Key One-Time Password System", + ISOC Symposium on Network and Distributed Security, + 1994. + + [Steiner 88] J.G. Steiner, B. C. Neuman, and J. I. Schiller, + "Kerberos, An Authentication Service for Open Network + Systems", in Proceedings of the Winter USENIX + Conference, Dallas, Jan 1988. + + [Taylor 88] B. Taylor and D. Goldberg, "Secure Networking in the + Sun Environment", Sun Microsystems Technical Paper, + 1988. + + [XFN 94] "Federated Naming: the XFN Specifications", X/Open + Preliminary Specification, X/Open Document #P403, + ISBN:1-85912-045-8, X/Open Co. Ltd., July 1994. + + + + Samar, Schemers Page 27 + + + + + + + + OSF-RFC 86.0 PAM October 1995 + + + + AUTHOR'S ADDRESS + + Vipin Samar Internet email: vipin@eng.sun.com + SunSoft, Inc. Telephone: +1-415-336-1002 + 2550 Garcia Avenue + Mountain View, CA 94043 + USA + + Roland J. Schemers III Internet email: schemers@eng.sun.com + SunSoft, Inc. Telephone: +1-415-336-1035 + 2550 Garcia Avenue + Mountain View, CA 94043 + USA + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Samar, Schemers Page 28 diff --git a/doc/specs/std-agent-id.raw b/doc/specs/std-agent-id.raw new file mode 100644 index 0000000..d5fbdd5 --- /dev/null +++ b/doc/specs/std-agent-id.raw @@ -0,0 +1,95 @@ +PAM working group ## A.G. Morgan + +## $Id$ ## + +## Pluggable Authentication Modules ## + +## REGISTERED AGENTS AND THEIR AGENT-ID'S ## + +#$ Purpose of this document + +#$$#{definition} Definition of an agent-id + +The most complete version of a "PAM agent-id" is contained in this +reference [#$R#{PAM_RFC2}]. A copy of a recent definition is +reproduced here for convenience. The reader is recommended to consult +reference [#{PAM_RFC2}] for definitions of other terms that are +used in this document. + +## -------------- ## + +The agent_id is a sequence of characters satisfying the following +regexp: + + /^[a-z0-9\_]+(@[a-z0-9\_.]+)?$/ + +and has a specific form for each independent agent. + +o Agent_ids that do not contain an at-sign (@) are to be considered as + representing some authentication mode that is a "public + standard". Registered names MUST NOT contain an at-sign (@). + +o Anyone can define additional agents by using names in the format + name@domainname, e.g. "ouragent@example.com". The part following + the at-sign MUST be a valid fully qualified internet domain name + [RFC-1034] controlled by the person or organization defining the + name. (Said another way, if you control the email address that + your agent has as an identifier, they you are entitled to use + this identifier.) It is up to each domain how it manages its local + namespace. + +## -------------- ## + +#$ Registered agent-id's + +The structure of this section is a single subsection for each +registered agent-id. This section includes a full definition of binary +prompts accepted by the agent and example responses of said +agent. Using the defining section alone, it should be possible for a +third party to create a conforming agent and modules that can +interoperate with other implementations of these objects. + +*$ "userpass" - the user+password agent + +Many legacy authentication systems are hardcoded to support one and +only one authentication method. Namely, + + username: joe + password: <secret> + +Indeed, this authentication method is often embedded into parts of the +transport protocol. The "user+password" agent with PAM agent-id: + + "userpass" + +Is intended to support this legacy authentication scheme. The protocol +for binary prompt exchange with this 'standard agent' is as follows: + +Case 1: module does not know the username, but expects the agent to + obtain this information and also the user's password: + + module: {LENGTH;PAM_BP_SELECT;userpass;'/'} + agent: {} + +Case 2: module has suggested username, but would like agent to confirm + it and gather password: + + module: {} + agent: {} + +Case 3: module knows username and will not permit the agent to change it: + + module: {} + agent: {} + +#$ References + +[#{PAM_RFC2}] Internet draft, "Pluggable Authentication Modules + (PAM)", available here: + +# http://linux.kernel.org/pub/linux/libs/pam/pre/doc/current-draft.txt # + +#$ Author's Address + +Andrew G. Morgan +Email: morgan@kernel.org |