diff options
Diffstat (limited to 'Linux-PAM/modules/pam_faildelay')
| -rw-r--r-- | Linux-PAM/modules/pam_faildelay/Makefile.am | 31 | ||||
| -rw-r--r-- | Linux-PAM/modules/pam_faildelay/Makefile.in | 665 | ||||
| -rw-r--r-- | Linux-PAM/modules/pam_faildelay/README | 33 | ||||
| -rw-r--r-- | Linux-PAM/modules/pam_faildelay/README.xml | 41 | ||||
| -rw-r--r-- | Linux-PAM/modules/pam_faildelay/pam_faildelay.8 | 65 | ||||
| -rw-r--r-- | Linux-PAM/modules/pam_faildelay/pam_faildelay.8.xml | 136 | ||||
| -rw-r--r-- | Linux-PAM/modules/pam_faildelay/pam_faildelay.c | 231 | ||||
| -rwxr-xr-x | Linux-PAM/modules/pam_faildelay/tst-pam_faildelay | 2 |
8 files changed, 1204 insertions, 0 deletions
diff --git a/Linux-PAM/modules/pam_faildelay/Makefile.am b/Linux-PAM/modules/pam_faildelay/Makefile.am new file mode 100644 index 00000000..ac1bc1d3 --- /dev/null +++ b/Linux-PAM/modules/pam_faildelay/Makefile.am @@ -0,0 +1,31 @@ +# +# Copyright (c) 2006 Thorsten Kukuk <kukuk@suse.de> +# + +CLEANFILES = *~ + +EXTRA_DIST = README $(MANS) $(XMLS) tst-pam_faildelay + +man_MANS = pam_faildelay.8 +XMLS = README.xml pam_faildelay.8.xml + +TESTS = tst-pam_faildelay + +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_faildelay.la + +if ENABLE_REGENERATE_MAN +noinst_DATA = README +README: pam_faildelay.8.xml +-include $(top_srcdir)/Make.xml.rules +endif + diff --git a/Linux-PAM/modules/pam_faildelay/Makefile.in b/Linux-PAM/modules/pam_faildelay/Makefile.in new file mode 100644 index 00000000..02c94322 --- /dev/null +++ b/Linux-PAM/modules/pam_faildelay/Makefile.in @@ -0,0 +1,665 @@ +# 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) 2006 Thorsten Kukuk <kukuk@suse.de> +# + + +VPATH = @srcdir@ +pkgdatadir = $(datadir)/@PACKAGE@ +pkglibdir = 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uninstall-am uninstall-man uninstall-man8 \ + uninstall-securelibLTLIBRARIES + +@ENABLE_REGENERATE_MAN_TRUE@README: pam_faildelay.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_faildelay/README b/Linux-PAM/modules/pam_faildelay/README new file mode 100644 index 00000000..a06d7e3f --- /dev/null +++ b/Linux-PAM/modules/pam_faildelay/README @@ -0,0 +1,33 @@ +pam_faildelay — Change the delay on failure per-application + +━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ + +DESCRIPTION + +pam_faildelay is a PAM module that can be used to set the delay on failure +per-application. + +If no delay is given, pam_faildelay will use the value of FAIL_DELAY from /etc/ +login.defs. + +OPTIONS + +debug + + Turns on debugging messages sent to syslog. + +delay=N + + Set the delay on failure to N microseconds. + +EXAMPLES + +The following example will set the delay on failure to 10 seconds: + +auth optional pam_faildelay.so delay=10000000 + + +AUTHOR + +pam_faildelay was written by Darren Tucker <dtucker@zip.com.au>. + diff --git a/Linux-PAM/modules/pam_faildelay/README.xml b/Linux-PAM/modules/pam_faildelay/README.xml new file mode 100644 index 00000000..64d4accc --- /dev/null +++ b/Linux-PAM/modules/pam_faildelay/README.xml @@ -0,0 +1,41 @@ +<?xml version="1.0" encoding='UTF-8'?> +<!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" +"http://www.docbook.org/xml/4.4/docbookx.dtd" +[ +<!-- +<!ENTITY pamaccess SYSTEM "pam_faildelay.8.xml"> +--> +]> + +<article> + + <articleinfo> + + <title> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_faildelay.8.xml" xpointer='xpointer(//refnamediv[@id = "pam_faildelay-name"]/*)'/> + </title> + + </articleinfo> + + <section> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_faildelay.8.xml" xpointer='xpointer(//refsect1[@id = "pam_faildelay-description"]/*)'/> + </section> + + <section> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_faildelay.8.xml" xpointer='xpointer(//refsect1[@id = "pam_faildelay-options"]/*)'/> + </section> + + <section> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_faildelay.8.xml" xpointer='xpointer(//refsect1[@id = "pam_faildelay-examples"]/*)'/> + </section> + + <section> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" + href="pam_faildelay.8.xml" xpointer='xpointer(//refsect1[@id = "pam_faildelay-author"]/*)'/> + </section> + +</article> diff --git a/Linux-PAM/modules/pam_faildelay/pam_faildelay.8 b/Linux-PAM/modules/pam_faildelay/pam_faildelay.8 new file mode 100644 index 00000000..86eb031a --- /dev/null +++ b/Linux-PAM/modules/pam_faildelay/pam_faildelay.8 @@ -0,0 +1,65 @@ +.\" Title: pam_faildelay +.\" Author: +.\" Generator: DocBook XSL Stylesheets v1.70.1 <http://docbook.sf.net/> +.\" Date: 12/06/2006 +.\" Manual: Linux\-PAM Manual +.\" Source: Linux\-PAM Manual +.\" +.TH "PAM_FAILDELAY" "8" "12/06/2006" "Linux\-PAM Manual" "Linux\-PAM Manual" +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.SH "NAME" +pam_faildelay \- Change the delay on failure per\-application +.SH "SYNOPSIS" +.HP 17 +\fBpam_faildelay.so\fR [debug] [delay=\fImicroseconds\fR] +.SH "DESCRIPTION" +.PP +pam_faildelay is a PAM module that can be used to set the delay on failure per\-application. +.PP +If no +\fBdelay\fR +is given, pam_faildelay will use the value of FAIL_DELAY from +\fI/etc/login.defs\fR. +.SH "OPTIONS" +.TP 3n +\fBdebug\fR +Turns on debugging messages sent to syslog. +.TP 3n +\fBdelay=\fR\fB\fIN\fR\fR +Set the delay on failure to N microseconds. +.SH "MODULE SERVICES PROVIDED" +.PP +Only the +\fBauth\fR +service is supported. +.SH "RETURN VALUES" +.TP 3n +PAM_IGNORE +Delay was successful adjusted. +.TP 3n +PAM_SYSTEM_ERR +The specified delay was not valid. +.SH "EXAMPLES" +.PP +The following example will set the delay on failure to 10 seconds: +.sp +.RS 3n +.nf +auth optional pam_faildelay.so delay=10000000 + +.fi +.RE +.sp +.SH "SEE ALSO" +.PP + +\fBpam_fail_delay\fR(3), +\fBpam.conf\fR(5), +\fBpam.d\fR(8), +\fBpam\fR(8) +.SH "AUTHOR" +.PP +pam_faildelay was written by Darren Tucker <dtucker@zip.com.au>. diff --git a/Linux-PAM/modules/pam_faildelay/pam_faildelay.8.xml b/Linux-PAM/modules/pam_faildelay/pam_faildelay.8.xml new file mode 100644 index 00000000..d2dfd266 --- /dev/null +++ b/Linux-PAM/modules/pam_faildelay/pam_faildelay.8.xml @@ -0,0 +1,136 @@ +<?xml version="1.0" encoding='UTF-8'?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" + "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> + +<refentry id="pam_faildelay"> + + <refmeta> + <refentrytitle>pam_faildelay</refentrytitle> + <manvolnum>8</manvolnum> + <refmiscinfo class="sectdesc">Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv id="pam_faildelay-name"> + <refname>pam_faildelay</refname> + <refpurpose>Change the delay on failure per-application</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <cmdsynopsis id="pam_faildelay-cmdsynopsis"> + <command>pam_faildelay.so</command> + <arg choice="opt"> + debug + </arg> + <arg choice="opt"> + delay=<replaceable>microseconds</replaceable> + </arg> + </cmdsynopsis> + </refsynopsisdiv> + + <refsect1 id="pam_faildelay-description"> + + <title>DESCRIPTION</title> + + <para> + pam_faildelay is a PAM module that can be used to set + the delay on failure per-application. + </para> + <para> + If no <option>delay</option> is given, pam_faildelay will + use the value of FAIL_DELAY from <filename>/etc/login.defs</filename>. + </para> + </refsect1> + + <refsect1 id="pam_faildelay-options"> + + <title>OPTIONS</title> + <variablelist> + <varlistentry> + <term> + <option>debug</option> + </term> + <listitem> + <para> + Turns on debugging messages sent to syslog. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term> + <option>delay=<replaceable>N</replaceable></option> + </term> + <listitem> + <para> + Set the delay on failure to N microseconds. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id="pam_faildelay-services"> + <title>MODULE SERVICES PROVIDED</title> + <para> + Only the <option>auth</option> service is supported. + </para> + </refsect1> + + <refsect1 id='pam_faildelay-return_values'> + <title>RETURN VALUES</title> + <variablelist> + <varlistentry> + <term>PAM_IGNORE</term> + <listitem> + <para> + Delay was successful adjusted. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term>PAM_SYSTEM_ERR</term> + <listitem> + <para> + The specified delay was not valid. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id='pam_faildelay-examples'> + <title>EXAMPLES</title> + <para> + The following example will set the delay on failure to + 10 seconds: + <programlisting> +auth optional pam_faildelay.so delay=10000000 + </programlisting> + </para> + </refsect1> + + <refsect1 id='pam_faildelay-see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>pam_fail_delay</refentrytitle><manvolnum>3</manvolnum> + </citerefentry>, + <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_faildelay-author'> + <title>AUTHOR</title> + <para> + pam_faildelay was written by Darren Tucker <dtucker@zip.com.au>. + </para> + </refsect1> + +</refentry> diff --git a/Linux-PAM/modules/pam_faildelay/pam_faildelay.c b/Linux-PAM/modules/pam_faildelay/pam_faildelay.c new file mode 100644 index 00000000..16cb7458 --- /dev/null +++ b/Linux-PAM/modules/pam_faildelay/pam_faildelay.c @@ -0,0 +1,231 @@ +/* pam_faildelay module */ + +/* + * Allows an admin to set the delay on failure per-application. + * Provides "auth" interface only. + * + * Use by putting something like this in the relevant pam config: + * auth required pam_faildelay.so delay=[microseconds] + * + * eg: + * auth required pam_faildelay.so delay=10000000 + * will set the delay on failure to 10 seconds. + * + * If no delay option was given, pam_faildelay.so will use the + * FAIL_DELAY value of /etc/login.defs. + * + * Based on pam_rootok and parts of pam_unix both by Andrew Morgan + * <morgan@linux.kernel.org> + * + * Copyright (c) 2006 Thorsten Kukuk <kukuk@thkukuk.de> + * - Rewrite to use extended PAM functions + * - Add /etc/login.defs support + * + * Portions Copyright (c) 2005 Darren Tucker <dtucker at zip com au>. + * + * Redistribution and use in source and binary forms of, with + * or without modification, are permitted provided that the following + * conditions are met: + * + * 1. Redistributions of source code must retain any existing copyright + * notice, and this entire permission notice in its entirety, + * including the disclaimer of warranties. + * + * 2. Redistributions in binary form must reproduce all prior and current + * copyright notices, this list of conditions, and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * 3. The name of any author may not be used to endorse or promote + * products derived from this software without their specific prior + * written permission. + * + * ALTERNATIVELY, this product may be distributed under the terms of the + * GNU General Public License, in which case the provisions of the GNU + * GPL are required INSTEAD OF the above restrictions. (This clause is + * necessary due to a potential conflict 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(S) 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. + */ + +#include "config.h" + +#include <errno.h> +#include <ctype.h> +#include <stdio.h> +#include <limits.h> +#include <unistd.h> +#include <syslog.h> +#include <string.h> +#include <stdlib.h> + + +#define PAM_SM_AUTH + +#include <security/pam_modules.h> +#include <security/pam_ext.h> + + +#define BUF_SIZE 8192 +#define LOGIN_DEFS "/etc/login.defs" + +static char * +search_key (const char *filename) +{ + FILE *fp; + char *buf = NULL; + size_t buflen = 0; + char *retval = NULL; + + fp = fopen (filename, "r"); + if (NULL == fp) + return NULL; + + while (!feof (fp)) + { + char *tmp, *cp; +#if defined(HAVE_GETLINE) + ssize_t n = getline (&buf, &buflen, fp); +#elif defined (HAVE_GETDELIM) + ssize_t n = getdelim (&buf, &buflen, '\n', fp); +#else + ssize_t n; + + if (buf == NULL) + { + buflen = BUF_SIZE; + buf = malloc (buflen); + } + buf[0] = '\0'; + if (fgets (buf, buflen - 1, fp) == NULL) + break; + else if (buf != NULL) + n = strlen (buf); + else + n = 0; +#endif /* HAVE_GETLINE / HAVE_GETDELIM */ + cp = buf; + + if (n < 1) + break; + + tmp = strchr (cp, '#'); /* remove comments */ + if (tmp) + *tmp = '\0'; + while (isspace ((int)*cp)) /* remove spaces and tabs */ + ++cp; + if (*cp == '\0') /* ignore empty lines */ + continue; + + if (cp[strlen (cp) - 1] == '\n') + cp[strlen (cp) - 1] = '\0'; + + tmp = strsep (&cp, " \t="); + if (cp != NULL) + while (isspace ((int)*cp) || *cp == '=') + ++cp; + + if (strcasecmp (tmp, "FAIL_DELAY") == 0) + { + retval = strdup (cp); + break; + } + } + fclose (fp); + + free (buf); + + return retval; +} + + +/* --- authentication management functions (only) --- */ + +PAM_EXTERN +int pam_sm_authenticate(pam_handle_t *pamh, int flags UNUSED, + int argc, const char **argv) +{ + int i, debug_flag = 0; + long int delay = -1; + + /* step through arguments */ + for (i = 0; i < argc; i++) { + if (sscanf(argv[i], "delay=%ld", &delay) == 1) { + /* sscanf did already everything necessary */ + } else if (strcmp (argv[i], "debug") == 0) + debug_flag = 1; + else + pam_syslog (pamh, LOG_ERR, "unknown option; %s", argv[i]); + } + + if (delay == -1) + { + char *endptr; + char *val = search_key (LOGIN_DEFS); + const char *val_orig = val; + + if (val == NULL) + return PAM_IGNORE; + + errno = 0; + delay = strtol (val, &endptr, 10) & 0777; + if (((delay == 0) && (val_orig == endptr)) || + ((delay == LONG_MIN || delay == LONG_MAX) && (errno == ERANGE))) + { + pam_syslog (pamh, LOG_ERR, "FAIL_DELAY=%s in %s not valid", + val, LOGIN_DEFS); + free (val); + return PAM_IGNORE; + } + + free (val); + /* delay is in seconds, convert to microseconds. */ + delay *= 1000000; + } + + if (debug_flag) + pam_syslog (pamh, LOG_DEBUG, "setting fail delay to %ld", delay); + + i = pam_fail_delay(pamh, delay); + if (i == PAM_SUCCESS) + return PAM_IGNORE; + else + return i; +} + +PAM_EXTERN +int pam_sm_setcred(pam_handle_t *pamh UNUSED, int flags UNUSED, + int argc UNUSED, const char **argv UNUSED) +{ + return PAM_IGNORE; +} + + +#ifdef PAM_STATIC + +/* static module data */ + +struct pam_module _pam_rootok_modstruct = { + "pam_faildelay", + pam_sm_authenticate, + pam_sm_setcred, + NULL, + NULL, + NULL, + NULL, +}; + +#endif + +/* end of module definition */ diff --git a/Linux-PAM/modules/pam_faildelay/tst-pam_faildelay b/Linux-PAM/modules/pam_faildelay/tst-pam_faildelay new file mode 100755 index 00000000..87f7fd44 --- /dev/null +++ b/Linux-PAM/modules/pam_faildelay/tst-pam_faildelay @@ -0,0 +1,2 @@ +#!/bin/sh +../../tests/tst-dlopen .libs/pam_faildelay.so |