From 9ada0093e92388590c7368600ca4e9e3e376f0d0 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 16:22:51 +0200 Subject: Adding upstream version 1.5.2. Signed-off-by: Daniel Baumann --- doc/adg/Linux-PAM_ADG.xml | 780 +++++++++++++++++++++++++++++++++++++++++ doc/adg/Makefile.am | 113 ++++++ doc/adg/Makefile.in | 623 ++++++++++++++++++++++++++++++++ doc/adg/pam_acct_mgmt.xml | 18 + doc/adg/pam_authenticate.xml | 18 + doc/adg/pam_chauthtok.xml | 18 + doc/adg/pam_close_session.xml | 18 + doc/adg/pam_conv.xml | 35 ++ doc/adg/pam_end.xml | 18 + doc/adg/pam_fail_delay.xml | 18 + doc/adg/pam_get_item.xml | 18 + doc/adg/pam_getenv.xml | 18 + doc/adg/pam_getenvlist.xml | 18 + doc/adg/pam_misc_conv.xml | 14 + doc/adg/pam_misc_drop_env.xml | 14 + doc/adg/pam_misc_paste_env.xml | 14 + doc/adg/pam_misc_setenv.xml | 14 + doc/adg/pam_open_session.xml | 18 + doc/adg/pam_putenv.xml | 18 + doc/adg/pam_set_item.xml | 18 + doc/adg/pam_setcred.xml | 18 + doc/adg/pam_start.xml | 18 + doc/adg/pam_strerror.xml | 18 + 23 files changed, 1877 insertions(+) create mode 100644 doc/adg/Linux-PAM_ADG.xml create mode 100644 doc/adg/Makefile.am create mode 100644 doc/adg/Makefile.in create mode 100644 doc/adg/pam_acct_mgmt.xml create mode 100644 doc/adg/pam_authenticate.xml create mode 100644 doc/adg/pam_chauthtok.xml create mode 100644 doc/adg/pam_close_session.xml create mode 100644 doc/adg/pam_conv.xml create mode 100644 doc/adg/pam_end.xml create mode 100644 doc/adg/pam_fail_delay.xml create mode 100644 doc/adg/pam_get_item.xml create mode 100644 doc/adg/pam_getenv.xml create mode 100644 doc/adg/pam_getenvlist.xml create mode 100644 doc/adg/pam_misc_conv.xml create mode 100644 doc/adg/pam_misc_drop_env.xml create mode 100644 doc/adg/pam_misc_paste_env.xml create mode 100644 doc/adg/pam_misc_setenv.xml create mode 100644 doc/adg/pam_open_session.xml create mode 100644 doc/adg/pam_putenv.xml create mode 100644 doc/adg/pam_set_item.xml create mode 100644 doc/adg/pam_setcred.xml create mode 100644 doc/adg/pam_start.xml create mode 100644 doc/adg/pam_strerror.xml (limited to 'doc/adg') 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 @@ + + + + + The Linux-PAM Application Developers' Guide + + + Andrew G. + Morgan + morgan@kernel.org + + + Thorsten + Kukuk + kukuk@thkukuk.de + + + Version 1.1.2, 31. August 2010 + + + This manual documents what an application developer needs to know + about the Linux-PAM library. It + describes how an application might use the + Linux-PAM library to authenticate + users. In addition it contains a description of the functions + to be found in libpam_misc library, that can + be used in general applications. Finally, it contains some comments + on PAM related security issues for the application developer. + + + + + + Introduction +
+ Description + + Linux-PAM + (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 + Linux-PAM library see the + Linux-PAM System Administrators' Guide. + + + It is the purpose of the Linux-PAM + 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. + + + 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 + (authentication tokens). + +
+ +
+ Synopsis + + For general applications that wish to use the services provided by + Linux-PAM the following is a summary + of the relevant linking information: + +#include <security/pam_appl.h> + +cc -o application .... -lpam + + + + In addition to libpam, there is a library of + miscellaneous functions that make the job of writing + PAM-aware applications easier (this library is not + covered in the DCE-RFC for PAM and is specific to the Linux-PAM + distribution): + +#include <security/pam_appl.h> +#include <security/pam_misc.h> + +cc -o application .... -lpam -lpam_misc + + +
+ + + + Overview + + 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. + + + The process of authenticating 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 + transparent to the application. That is + to say, when the application is written, no assumptions can be made + about how the client will be authenticated. + + + The process of authentication is performed by the PAM library via a + call to pam_authenticate(). The return value + of this function will indicate whether a named client (the + user) has been authenticated. If the PAM library + needs to prompt the user for any information, such as their + name or a password + 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.) + + + 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. + + + The PAM library, however, must work equally well for different styles + of application. Some applications, like the familiar + login and passwd 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 ftpd which prefixes each exchanged + message with a numeric identifier. + + + 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 + conversation function. This function is called + from within 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. + + + 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 ftpd, this might involve + prefixing the string with the number 331 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. + + + 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. + + + Besides authentication, PAM provides other forms of management. + Session management is provided with calls to + pam_open_session() and + pam_close_session(). 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. + + + Account management is another area that an application developer + should include with a call to pam_acct_mgmt(). + 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 + pam_chauthtok(), although some applications + are not suited to this task (ftp for example) + and in this case the application should deny access to the user. + + + PAM is also capable of setting and deleting the user's credentials with + the call pam_setcred(). 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. + + + + + + The public interface to <emphasis remap='B'>Linux-PAM</emphasis> + + + Firstly, the relevant include file for the + Linux-PAM library is + <security/pam_appl.h>. + It contains the definitions for a number of functions. After + listing these functions, we collect some guiding remarks for + programmers. + +
+ What can be expected by the application + + + + + + + + + + + + + + + +
+
+ What is expected of an application + +
+
+ Programming notes + + Note, all of the authentication service function calls accept the + token PAM_SILENT, 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. + PAM_SILENT does not override the + prompting of the user for passwords etc., it only stops informative + messages from being generated. + +
+ + + + + Security issues of <emphasis remap='B'>Linux-PAM</emphasis> + + + 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. + + + A poorly (or maliciously) written application can defeat any + Linux-PAM 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 Linux-PAM library + simply assumes the responsibility of authenticating + the user; ascertaining that the user is who they + say they are. Care should be taken to anticipate all of the documented + behavior of the Linux-PAM library + functions. A failure to do this will most certainly lead to a future + security breach. + + +
+ Care about standard library calls + + In general, writers of authorization-granting applications should + assume that each module is likely to call any or + all '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 'free()' 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 + Linux-PAM library, or copy the + structure contents to some safe area of memory before passing + control to the Linux-PAM library. + + + Two important function classes that fall into this category are + + getpwnam3 + and + syslog3 + . + +
+ +
+ Choice of a service name + + When picking the service-name that + corresponds to the first entry in the + Linux-PAM configuration file, + the application programmer should avoid + the temptation of choosing something related to + argv[0]. 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. + + + 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.) + + + To invoke some target 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, + ln -s /target/application ./preferred_name + and then run ./preferred_name. + + + By studying the Linux-PAM + configuration file(s), an attacker can choose the + preferred_name to be that of a service enjoying + minimal protection; for example a game which uses + Linux-PAM 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. + + + 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. + +
+ +
+ The conversation function + + Care should be taken to ensure that the conv() + function is robust. Such a function is provided in the library + libpam_misc (see + below). + +
+ +
+ The identity of the user + + The Linux-PAM 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. + + + 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 UID + (user ID) of the running process; the identity of the + privilege granting user is the EUID + (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 PAM_USER + + pam_get_item3 + . Note, modules can change the values of + PAM_USER and PAM_RUSER + during any of the pam_*() library calls. + For this reason, the application should take care to use the + pam_get_item() every time it wishes to + establish who the authenticated user is (or will currently be). + + + 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. + + + A more portable solution to storing the identity of the requesting + user is to use the PAM_RUSER + pam_get_item3 + . The application should supply this value before + attempting to authenticate the user with + pam_authenticate(). 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 + + pam_set_item3 + to set PAM_RUSER. + + + In addition to the PAM_RUSER item, the + application should supply the PAM_RHOST + (requesting host) item. As a general rule, + the following convention for its value can be assumed: + NULL = unknown; localhost = invoked directly from the local system; + other.place.xyz = 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. + +
+ +
+ Sufficient resources + + 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 + setrlimit2 + family of commands should be taken into consideration. + + + 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. + +
+ + + + A library of miscellaneous helper functions + + To aid the work of the application developer a library of + miscellaneous functions is provided. It is called + libpam_misc, and contains a text based + conversation function, and routines for enhancing the standard + PAM-environment variable support. + + + The functions, structures and macros, made available by this + library can be defined by including + <security/pam_misc.h>. It should be + noted that this library is specific to + Linux-PAM and is not referred to in + the defining DCE-RFC (see See also) + below. + +
+ Functions supplied + + + + +
+ + + + Porting legacy applications + + 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. + + + 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". + + + 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 + popd once in this way any new protocols can be + implemented in-situ. + + + One simple test of a ported application would be to insert the + pam_permit module and see if the application + demands you type a password... In such a case, xlock + 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. + + + 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. + + + + + Glossary of PAM related terms + + The following are a list of terms used within this document. + + + + Authentication token + + + 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 + refreshing 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. + + + + + Credentials + + + Having successfully authenticated the user, PAM is able to + establish certain characteristics/attributes of the user. + These are termed credentials. Examples + of which are group memberships to perform privileged tasks + with, and tickets 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. + + + + + + + + An example application + + To get a flavor of the way a Linux-PAM + 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 (0 for success; + 1 for failure). + + +#include +#include + +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 */ +} +]]> + + + + + Files + + + /usr/include/security/pam_appl.h + + + Header file with interfaces for + Linux-PAM applications. + + + + + /usr/include/security/pam_misc.h + + + Header file for useful library functions for making + applications easier to write. + + + + + + + + See also + + + + The Linux-PAM System Administrators' Guide. + + + + + The Linux-PAM Module Writers' Guide. + + + + + The V. Samar and R. Schemers (SunSoft), ``UNIFIED LOGIN WITH + PLUGGABLE AUTHENTICATION MODULES'', Open Software Foundation + Request For Comments 86.0, October 1995. + + + + + + + Author/acknowledgments + + 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. + + + 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 + Linux-PAM, Sun graciously made the + documentation for their implementation of PAM available. This act + greatly accelerated the development of + Linux-PAM. + + + + + Copyright information for this document + +Copyright (c) 2006 Thorsten Kukuk <kukuk@thkukuk.de> +Copyright (c) 1996-2002 Andrew G. Morgan <morgan@kernel.org> + + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are + met: + + +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. + + + 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.) + + +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 + + + 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 +# + +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 \ + $(top_builddir)/Linux-PAM-$(VERSION)/doc/adg/html/; \ + else exit 1; \ + fi + if test -f Linux-PAM_ADG.txt; then \ + cp -p 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+@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_ADG.fo +@ENABLE_GENERATE_PDF_TRUE@@ENABLE_REGENERATE_MAN_TRUE@ $(FO2PDF) Linux-PAM_ADG.fo $@ +@ENABLE_GENERATE_PDF_FALSE@@ENABLE_REGENERATE_MAN_TRUE@ echo "No fo2pdf processor installed, skip PDF generation" + +@ENABLE_REGENERATE_MAN_TRUE@Linux-PAM_ADG.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_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 @@ + + +
+ Account validation management + + + +
+ +
+
+ +
+
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 @@ + + +
+ Authenticating the user + + + +
+ +
+
+ +
+
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 @@ + + +
+ Updating authentication tokens + + + +
+ +
+
+ +
+
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 @@ + + +
+ terminating PAM session management + + + +
+ +
+
+ +
+
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 @@ + + +
+ The conversation function + + + + +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; +}; + +
+ +
+
+ +
+
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 @@ + + +
+ Termination of PAM transaction + + + +
+ +
+
+ +
+
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 @@ + + +
+ Request a delay on failure + + + +
+ +
+
+ +
+
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 @@ + + +
+ Getting PAM items + + + +
+ +
+
+ +
+
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 @@ + + +
+ Get a PAM environment variable + + + +
+ +
+
+ +
+
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 @@ + + +
+ Getting the PAM environment + + + +
+ +
+
+ +
+
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 @@ + + +
+ Text based conversation function + + + +
+ +
+
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 @@ + + +
+ Liberating a locally saved environment + + + +
+ +
+
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 @@ + + +
+ Transcribing an environment to that of PAM + + + +
+ +
+
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 @@ + + +
+ BSD like PAM environment variable setting + + + +
+ +
+
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 @@ + + +
+ Start PAM session management + + + +
+ +
+
+ +
+
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 @@ + + +
+ Set or change PAM environment variable + + + +
+ +
+
+ +
+
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 @@ + + +
+ Setting PAM items + + + +
+ +
+
+ +
+
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 @@ + + +
+ Setting user credentials + + + +
+ +
+
+ +
+
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 @@ + + +
+ Initialization of PAM transaction + + + +
+ +
+
+ +
+
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 @@ + + +
+ Strings describing PAM error codes + + + +
+ +
+
+ +
+
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