diff options
Diffstat (limited to 'Linux-PAM/modules/pam_wheel')
| -rw-r--r-- | Linux-PAM/modules/pam_wheel/Makefile.am | 31 | ||||
| -rw-r--r-- | Linux-PAM/modules/pam_wheel/Makefile.in | 666 | ||||
| -rw-r--r-- | Linux-PAM/modules/pam_wheel/README | 61 | ||||
| -rw-r--r-- | Linux-PAM/modules/pam_wheel/README.xml | 41 | ||||
| -rw-r--r-- | Linux-PAM/modules/pam_wheel/pam_wheel.8 | 127 | ||||
| -rw-r--r-- | Linux-PAM/modules/pam_wheel/pam_wheel.8.xml | 242 | ||||
| -rw-r--r-- | Linux-PAM/modules/pam_wheel/pam_wheel.c | 316 | ||||
| -rwxr-xr-x | Linux-PAM/modules/pam_wheel/tst-pam_wheel | 2 |
8 files changed, 1486 insertions, 0 deletions
diff --git a/Linux-PAM/modules/pam_wheel/Makefile.am b/Linux-PAM/modules/pam_wheel/Makefile.am new file mode 100644 index 00000000..82a98305 --- /dev/null +++ b/Linux-PAM/modules/pam_wheel/Makefile.am @@ -0,0 +1,31 @@ +# +# Copyright (c) 2005, 2006 Thorsten Kukuk <kukuk@suse.de> +# + +CLEANFILES = *~ + +EXTRA_DIST = README ${MANS} $(XMLS) tst-pam_wheel + +man_MANS = pam_wheel.8 +XMLS = README.xml pam_wheel.8.xml + +TESTS = tst-pam_wheel + +securelibdir = $(SECUREDIR) +secureconfdir = $(SCONFIGDIR) + +AM_CFLAGS = -I$(top_srcdir)/libpam/include -I$(top_srcdir)/libpamc/include +AM_LDFLAGS = -no-undefined -avoid-version -module \ + -L$(top_builddir)/libpam -lpam +if HAVE_VERSIONING + AM_LDFLAGS += -Wl,--version-script=$(srcdir)/../modules.map +endif + +securelib_LTLIBRARIES = pam_wheel.la + +if ENABLE_REGENERATE_MAN +noinst_DATA = README +README: pam_wheel.8.xml +-include $(top_srcdir)/Make.xml.rules +endif + diff --git a/Linux-PAM/modules/pam_wheel/Makefile.in b/Linux-PAM/modules/pam_wheel/Makefile.in new file mode 100644 index 00000000..0f7b9db6 --- /dev/null +++ b/Linux-PAM/modules/pam_wheel/Makefile.in @@ -0,0 +1,666 @@ +# Makefile.in generated by automake 1.10 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, +# 2003, 2004, 2005, 2006 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 Thorsten Kukuk <kukuk@suse.de> +# + + +VPATH = @srcdir@ +pkgdatadir = $(datadir)/@PACKAGE@ +pkglibdir = $(libdir)/@PACKAGE@ +pkgincludedir = 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+@ENABLE_REGENERATE_MAN_TRUE@README: pam_wheel.8.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/Linux-PAM/modules/pam_wheel/README b/Linux-PAM/modules/pam_wheel/README new file mode 100644 index 00000000..6a2b21c5 --- /dev/null +++ b/Linux-PAM/modules/pam_wheel/README @@ -0,0 +1,61 @@ +pam_wheel — Only permit root access to members of group wheel + +━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ + +DESCRIPTION + +The pam_wheel PAM module is used to enforce the so-called wheel group. By +default it permits root access to the system if the applicant user is a member +of the wheel group. If no group with this name exist, the module is using the +group with the group-ID 0. + +OPTIONS + +debug + + Print debug information. + +deny + + Reverse the sense of the auth operation: if the user is trying to get UID 0 + access and is a member of the wheel group (or the group of the group + option), deny access. Conversely, if the user is not in the group, return + PAM_IGNORE (unless trust was also specified, in which case we return + PAM_SUCCESS). + +group=name + + Instead of checking the wheel or GID 0 groups, use the name group to + perform the authentication. + +root_only + + The check for wheel membership is done only. + +trust + + The pam_wheel module will return PAM_SUCCESS instead of PAM_IGNORE if the + user is a member of the wheel group (thus with a little play stacking the + modules the wheel members may be able to su to root without being prompted + for a passwd). + +use_uid + + The check for wheel membership will be done against the current uid instead + of the original one (useful when jumping with su from one account to + another for example). + +EXAMPLES + +The root account gains access by default (rootok), only wheel members can +become root (wheel) but Unix authenticate non-root applicants. + +su auth sufficient pam_rootok.so +su auth required pam_wheel.so +su auth required pam_unix.so + + +AUTHOR + +pam_wheel was written by Cristian Gafton <gafton@redhat.com>. + diff --git a/Linux-PAM/modules/pam_wheel/README.xml b/Linux-PAM/modules/pam_wheel/README.xml new file mode 100644 index 00000000..9e33d7ff --- /dev/null +++ b/Linux-PAM/modules/pam_wheel/README.xml @@ -0,0 +1,41 @@ +<?xml version="1.0" encoding='UTF-8'?> +<!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN" +"http://www.docbook.org/xml/4.3/docbookx.dtd" +[ +<!-- +<!ENTITY pamaccess SYSTEM "pam_wheel.8.xml"> +--> +]> + +<article> + + <articleinfo> + + <title> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_wheel.8.xml" xpointer='xpointer(//refnamediv[@id = "pam_wheel-name"]/*)'/> + </title> + + </articleinfo> + + <section> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_wheel.8.xml" xpointer='xpointer(//refsect1[@id = "pam_wheel-description"]/*)'/> + </section> + + <section> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_wheel.8.xml" xpointer='xpointer(//refsect1[@id = "pam_wheel-options"]/*)'/> + </section> + + <section> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_wheel.8.xml" xpointer='xpointer(//refsect1[@id = "pam_wheel-examples"]/*)'/> + </section> + + <section> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_wheel.8.xml" xpointer='xpointer(//refsect1[@id = "pam_wheel-author"]/*)'/> + </section> + +</article> diff --git a/Linux-PAM/modules/pam_wheel/pam_wheel.8 b/Linux-PAM/modules/pam_wheel/pam_wheel.8 new file mode 100644 index 00000000..7da719a3 --- /dev/null +++ b/Linux-PAM/modules/pam_wheel/pam_wheel.8 @@ -0,0 +1,127 @@ +.\" Title: pam_wheel +.\" Author: +.\" Generator: DocBook XSL Stylesheets v1.73.1 <http://docbook.sf.net/> +.\" Date: 01/08/2008 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" +.TH "PAM_WHEEL" "8" "01/08/2008" "Linux-PAM Manual" "Linux\-PAM Manual" +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.SH "NAME" +pam_wheel - Only permit root access to members of group wheel +.SH "SYNOPSIS" +.HP 13 +\fBpam_wheel\.so\fR [debug] [deny] [group=\fIname\fR] [root_only] [trust] [use_uid] +.SH "DESCRIPTION" +.PP +The pam_wheel PAM module is used to enforce the so\-called +\fIwheel\fR +group\. By default it permits root access to the system if the applicant user is a member of the +\fIwheel\fR +group\. If no group with this name exist, the module is using the group with the group\-ID +\fB0\fR\. +.SH "OPTIONS" +.PP +\fBdebug\fR +.RS 4 +Print debug information\. +.RE +.PP +\fBdeny\fR +.RS 4 +Reverse the sense of the auth operation: if the user is trying to get UID 0 access and is a member of the wheel group (or the group of the +\fBgroup\fR +option), deny access\. Conversely, if the user is not in the group, return PAM_IGNORE (unless +\fBtrust\fR +was also specified, in which case we return PAM_SUCCESS)\. +.RE +.PP +\fBgroup=\fR\fB\fIname\fR\fR +.RS 4 +Instead of checking the wheel or GID 0 groups, use the +\fB\fIname\fR\fR +group to perform the authentication\. +.RE +.PP +\fBroot_only\fR +.RS 4 +The check for wheel membership is done only\. +.RE +.PP +\fBtrust\fR +.RS 4 +The pam_wheel module will return PAM_SUCCESS instead of PAM_IGNORE if the user is a member of the wheel group (thus with a little play stacking the modules the wheel members may be able to su to root without being prompted for a passwd)\. +.RE +.PP +\fBuse_uid\fR +.RS 4 +The check for wheel membership will be done against the current uid instead of the original one (useful when jumping with su from one account to another for example)\. +.RE +.SH "MODULE SERVICES PROVIDED" +.PP +The +\fBauth\fR +and +\fBaccount\fR +services are supported\. +.SH "RETURN VALUES" +.PP +PAM_AUTH_ERR +.RS 4 +Authentication failure\. +.RE +.PP +PAM_BUF_ERR +.RS 4 +Memory buffer error\. +.RE +.PP +PAM_IGNORE +.RS 4 +The return value should be ignored by PAM dispatch\. +.RE +.PP +PAM_PERM_DENY +.RS 4 +Permission denied\. +.RE +.PP +PAM_SERVICE_ERR +.RS 4 +Cannot determine the user name\. +.RE +.PP +PAM_SUCCESS +.RS 4 +Success\. +.RE +.PP +PAM_USER_UNKNOWN +.RS 4 +User not known\. +.RE +.SH "EXAMPLES" +.PP +The root account gains access by default (rootok), only wheel members can become root (wheel) but Unix authenticate non\-root applicants\. +.sp +.RS 4 +.nf +su auth sufficient pam_rootok\.so +su auth required pam_wheel\.so +su auth required pam_unix\.so + +.fi +.RE +.sp +.SH "SEE ALSO" +.PP + +\fBpam.conf\fR(5), +\fBpam.d\fR(8), +\fBpam\fR(8) +.SH "AUTHOR" +.PP +pam_wheel was written by Cristian Gafton <gafton@redhat\.com>\. diff --git a/Linux-PAM/modules/pam_wheel/pam_wheel.8.xml b/Linux-PAM/modules/pam_wheel/pam_wheel.8.xml new file mode 100644 index 00000000..bf8b7349 --- /dev/null +++ b/Linux-PAM/modules/pam_wheel/pam_wheel.8.xml @@ -0,0 +1,242 @@ +<?xml version="1.0" encoding='UTF-8'?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN" + "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd"> + +<refentry id="pam_wheel"> + + <refmeta> + <refentrytitle>pam_wheel</refentrytitle> + <manvolnum>8</manvolnum> + <refmiscinfo class="sectdesc">Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_wheel-name"> + <refname>pam_wheel</refname> + <refpurpose>Only permit root access to members of group wheel</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <cmdsynopsis id="pam_wheel-cmdsynopsis"> + <command>pam_wheel.so</command> + <arg choice="opt"> + debug + </arg> + <arg choice="opt"> + deny + </arg> + <arg choice="opt"> + group=<replaceable>name</replaceable> + </arg> + <arg choice="opt"> + root_only + </arg> + <arg choice="opt"> + trust + </arg> + <arg choice="opt"> + use_uid + </arg> + </cmdsynopsis> + </refsynopsisdiv> + + <refsect1 id="pam_wheel-description"> + <title>DESCRIPTION</title> + <para> + The pam_wheel PAM module is used to enforce the so-called + <emphasis>wheel</emphasis> group. By default it permits root + access to the system if the applicant user is a member of the + <emphasis>wheel</emphasis> group. If no group with this name exist, + the module is using the group with the group-ID + <emphasis remap='B'>0</emphasis>. + </para> + </refsect1> + + <refsect1 id="pam_wheel-options"> + <title>OPTIONS</title> + <variablelist> + <varlistentry> + <term> + <option>debug</option> + </term> + <listitem> + <para> + Print debug information. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term> + <option>deny</option> + </term> + <listitem> + <para> + Reverse the sense of the auth operation: if the user + is trying to get UID 0 access and is a member of the + wheel group (or the group of the <option>group</option> option), + deny access. Conversely, if the user is not in the group, return + PAM_IGNORE (unless <option>trust</option> was also specified, + in which case we return PAM_SUCCESS). + </para> + </listitem> + </varlistentry> + <varlistentry> + <term> + <option>group=<replaceable>name</replaceable></option> + </term> + <listitem> + <para> + Instead of checking the wheel or GID 0 groups, use + the <option><replaceable>name</replaceable></option> group + to perform the authentication. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term> + <option>root_only</option> + </term> + <listitem> + <para> + The check for wheel membership is done only. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term> + <option>trust</option> + </term> + <listitem> + <para> + The pam_wheel module will return PAM_SUCCESS instead + of PAM_IGNORE if the user is a member of the wheel group + (thus with a little play stacking the modules the wheel + members may be able to su to root without being prompted + for a passwd). + </para> + </listitem> + </varlistentry> + <varlistentry> + <term> + <option>use_uid</option> + </term> + <listitem> + <para> + The check for wheel membership will be done against + the current uid instead of the original one (useful when + jumping with su from one account to another for example). + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id="pam_wheel-services"> + <title>MODULE SERVICES PROVIDED</title> + <para> + The <emphasis remap='B'>auth</emphasis> and + <emphasis remap='B'>account</emphasis> services are supported. + </para> + </refsect1> + + <refsect1 id='pam_wheel-return_values'> + <title>RETURN VALUES</title> + <variablelist> + <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_IGNORE</term> + <listitem> + <para> + The return value should be ignored by PAM dispatch. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_PERM_DENY</term> + <listitem> + <para> + Permission denied. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SERVICE_ERR</term> + <listitem> + <para> + Cannot determine the user name. + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term>PAM_SUCCESS</term> + <listitem> + <para> + Success. + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term>PAM_USER_UNKNOWN</term> + <listitem> + <para> + User not known. + </para> + </listitem> + </varlistentry> + + </variablelist> + </refsect1> + + <refsect1 id='pam_wheel-examples'> + <title>EXAMPLES</title> + <para> + The root account gains access by default (rootok), only wheel + members can become root (wheel) but Unix authenticate non-root + applicants. + <programlisting> +su auth sufficient pam_rootok.so +su auth required pam_wheel.so +su auth required pam_unix.so + </programlisting> + </para> + </refsect1> + + <refsect1 id='pam_wheel-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam.conf</refentrytitle><manvolnum>5</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam.d</refentrytitle><manvolnum>8</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum> + </citerefentry> + </para> + </refsect1> + + <refsect1 id='pam_wheel-author'> + <title>AUTHOR</title> + <para> + pam_wheel was written by Cristian Gafton <gafton@redhat.com>. + </para> + </refsect1> + +</refentry> diff --git a/Linux-PAM/modules/pam_wheel/pam_wheel.c b/Linux-PAM/modules/pam_wheel/pam_wheel.c new file mode 100644 index 00000000..d7d8096e --- /dev/null +++ b/Linux-PAM/modules/pam_wheel/pam_wheel.c @@ -0,0 +1,316 @@ +/* pam_wheel module */ + +/* + * Written by Cristian Gafton <gafton@redhat.com> 1996/09/10 + * See the end of the file for Copyright Information + * + * + * 1.2 - added 'deny' and 'group=' options + * 1.1 - added 'trust' option + * 1.0 - the code is working for at least another person, so... :-) + * 0.1 - use vsyslog instead of vfprintf/syslog in _pam_log + * - return PAM_IGNORE on success (take care of sloppy sysadmins..) + * - use pam_get_user instead of pam_get_item(...,PAM_USER,...) + * - a new arg use_uid to auth the current uid instead of the + * initial (logged in) one. + * 0.0 - first release + * + * TODO: + * - try to use make_remark from pam_unix/support.c + * - consider returning on failure PAM_FAIL_NOW if the user is not + * a wheel member. + */ + +#include "config.h" + +#include <stdio.h> +#include <unistd.h> +#include <string.h> +#include <syslog.h> +#include <stdarg.h> +#include <sys/types.h> +#include <pwd.h> +#include <grp.h> + +/* + * here, we make a definition for the externally accessible function + * in this file (this definition is required for static a module + * but strongly encouraged generally) it is used to instruct the + * modules include file to define the function prototypes. + */ + +#define PAM_SM_AUTH +#define PAM_SM_ACCOUNT + +#include <security/pam_modules.h> +#include <security/pam_modutil.h> +#include <security/pam_ext.h> + +/* checks if a user is on a list of members of the GID 0 group */ +static int is_on_list(char * const *list, const char *member) +{ + while (list && *list) { + if (strcmp(*list, member) == 0) + return 1; + list++; + } + return 0; +} + +/* argument parsing */ + +#define PAM_DEBUG_ARG 0x0001 +#define PAM_USE_UID_ARG 0x0002 +#define PAM_TRUST_ARG 0x0004 +#define PAM_DENY_ARG 0x0010 +#define PAM_ROOT_ONLY_ARG 0x0020 + +static int +_pam_parse (const pam_handle_t *pamh, int argc, const char **argv, + char *use_group, size_t group_length) +{ + int ctrl=0; + + memset(use_group, '\0', group_length); + + /* step through arguments */ + for (ctrl=0; argc-- > 0; ++argv) { + + /* generic options */ + + if (!strcmp(*argv,"debug")) + ctrl |= PAM_DEBUG_ARG; + else if (!strcmp(*argv,"use_uid")) + ctrl |= PAM_USE_UID_ARG; + else if (!strcmp(*argv,"trust")) + ctrl |= PAM_TRUST_ARG; + else if (!strcmp(*argv,"deny")) + ctrl |= PAM_DENY_ARG; + else if (!strcmp(*argv,"root_only")) + ctrl |= PAM_ROOT_ONLY_ARG; + else if (!strncmp(*argv,"group=",6)) + strncpy(use_group,*argv+6,group_length-1); + else { + pam_syslog(pamh, LOG_ERR, "unknown option: %s", *argv); + } + } + + return ctrl; +} + +static int +perform_check (pam_handle_t *pamh, int ctrl, const char *use_group) +{ + const char *username = NULL; + const char *fromsu; + struct passwd *pwd, *tpwd = NULL; + struct group *grp; + int retval = PAM_AUTH_ERR; + + retval = pam_get_user(pamh, &username, NULL); + if ((retval != PAM_SUCCESS) || (!username)) { + if (ctrl & PAM_DEBUG_ARG) { + pam_syslog(pamh, LOG_DEBUG, "can not get the username"); + } + return PAM_SERVICE_ERR; + } + + pwd = pam_modutil_getpwnam (pamh, username); + if (!pwd) { + if (ctrl & PAM_DEBUG_ARG) { + pam_syslog(pamh, LOG_NOTICE, "unknown user %s", username); + } + return PAM_USER_UNKNOWN; + } + if (ctrl & PAM_ROOT_ONLY_ARG) { + /* su to a non uid 0 account ? */ + if (pwd->pw_uid != 0) { + return PAM_IGNORE; + } + } + + if (ctrl & PAM_USE_UID_ARG) { + tpwd = pam_modutil_getpwuid (pamh, getuid()); + if (!tpwd) { + if (ctrl & PAM_DEBUG_ARG) { + pam_syslog(pamh, LOG_NOTICE, "who is running me ?!"); + } + return PAM_SERVICE_ERR; + } + fromsu = tpwd->pw_name; + } else { + fromsu = pam_modutil_getlogin(pamh); + if (fromsu) { + tpwd = pam_modutil_getpwnam (pamh, fromsu); + } + if (!fromsu || !tpwd) { + if (ctrl & PAM_DEBUG_ARG) { + pam_syslog(pamh, LOG_NOTICE, "who is running me ?!"); + } + return PAM_SERVICE_ERR; + } + } + + /* + * At this point fromsu = username-of-invoker; tpwd = pwd ptr for fromsu + */ + + if (!use_group[0]) { + if ((grp = pam_modutil_getgrnam (pamh, "wheel")) == NULL) { + grp = pam_modutil_getgrgid (pamh, 0); + } + } else { + grp = pam_modutil_getgrnam (pamh, use_group); + } + + if (!grp || (!grp->gr_mem && (tpwd->pw_gid != grp->gr_gid))) { + if (ctrl & PAM_DEBUG_ARG) { + if (!use_group[0]) { + pam_syslog(pamh, LOG_NOTICE, "no members in a GID 0 group"); + } else { + pam_syslog(pamh, LOG_NOTICE, + "no members in '%s' group", use_group); + } + } + if (ctrl & PAM_DENY_ARG) { + /* if this was meant to deny access to the members + * of this group and the group does not exist, allow + * access + */ + return PAM_IGNORE; + } else { + return PAM_AUTH_ERR; + } + } + + /* + * test if the user is a member of the group, or if the + * user has the "wheel" (sic) group as its primary group. + */ + + if (is_on_list(grp->gr_mem, fromsu) || (tpwd->pw_gid == grp->gr_gid)) { + + if (ctrl & PAM_DENY_ARG) { + retval = PAM_PERM_DENIED; + + } else if (ctrl & PAM_TRUST_ARG) { + retval = PAM_SUCCESS; /* this can be a sufficient check */ + + } else { + retval = PAM_IGNORE; + } + + } else { + + if (ctrl & PAM_DENY_ARG) { + + if (ctrl & PAM_TRUST_ARG) { + retval = PAM_SUCCESS; /* this can be a sufficient check */ + } else { + retval = PAM_IGNORE; + } + + } else { + retval = PAM_PERM_DENIED; + } + } + + if (ctrl & PAM_DEBUG_ARG) { + if (retval == PAM_IGNORE) { + pam_syslog(pamh, LOG_NOTICE, + "Ignoring access request '%s' for '%s'", + fromsu, username); + } else { + pam_syslog(pamh, LOG_NOTICE, "Access %s to '%s' for '%s'", + (retval != PAM_SUCCESS) ? "denied":"granted", + fromsu, username); + } + } + + return retval; +} + +/* --- authentication management functions --- */ + +PAM_EXTERN int +pam_sm_authenticate (pam_handle_t *pamh, int flags UNUSED, + int argc, const char **argv) +{ + char use_group[BUFSIZ]; + int ctrl; + + ctrl = _pam_parse(pamh, argc, argv, use_group, sizeof(use_group)); + + return perform_check(pamh, ctrl, use_group); +} + +PAM_EXTERN int +pam_sm_setcred (pam_handle_t *pamh UNUSED, int flags UNUSED, + int argc UNUSED, const char **argv UNUSED) +{ + return PAM_SUCCESS; +} + +PAM_EXTERN int +pam_sm_acct_mgmt (pam_handle_t *pamh, int flags UNUSED, + int argc, const char **argv) +{ + char use_group[BUFSIZ]; + int ctrl; + + ctrl = _pam_parse(pamh, argc, argv, use_group, sizeof(use_group)); + + return perform_check(pamh, ctrl, use_group); +} + +#ifdef PAM_STATIC + +/* static module data */ + +struct pam_module _pam_wheel_modstruct = { + "pam_wheel", + pam_sm_authenticate, + pam_sm_setcred, + pam_sm_acct_mgmt, + NULL, + NULL, + NULL +}; + +#endif /* PAM_STATIC */ + +/* + * Copyright (c) Cristian Gafton <gafton@redhat.com>, 1996, 1997 + * All rights reserved + * + * 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 Public License, in which case the provisions of the GPL are + * required INSTEAD OF the above restrictions. (This clause is + * necessary due to a potential bad interaction between the 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 DAMAGE. + */ diff --git a/Linux-PAM/modules/pam_wheel/tst-pam_wheel b/Linux-PAM/modules/pam_wheel/tst-pam_wheel new file mode 100755 index 00000000..4bf5d6a6 --- /dev/null +++ b/Linux-PAM/modules/pam_wheel/tst-pam_wheel @@ -0,0 +1,2 @@ +#!/bin/sh +../../tests/tst-dlopen .libs/pam_wheel.so |