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diff --git a/doc/man/pam_sm_chauthtok.3.xml b/doc/man/pam_sm_chauthtok.3.xml new file mode 100644 index 0000000..25e17d0 --- /dev/null +++ b/doc/man/pam_sm_chauthtok.3.xml @@ -0,0 +1,204 @@ +<?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>#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> |