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Diffstat (limited to 'config/authng/pkg/authng_backends.inc')
-rw-r--r-- | config/authng/pkg/authng_backends.inc | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/config/authng/pkg/authng_backends.inc b/config/authng/pkg/authng_backends.inc new file mode 100644 index 00000000..1b58e6c1 --- /dev/null +++ b/config/authng/pkg/authng_backends.inc @@ -0,0 +1,234 @@ +<?php +/* $Id$ */ +/* ========================================================================== */ +/* + authng_backends.inc + part of pfSense (http://www.pfSense.com) + Copyright (C) 2007 Daniel S. Haischt <me@daniel.stefan.haischt.name> + All rights reserved. + + Based on m0n0wall (http://m0n0.ch/wall) + Copyright (C) 2003-2006 Manuel Kasper <mk@neon1.net>. + 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, + this list of conditions and the following disclaimer. + + 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. + + 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. + */ +/* ========================================================================== */ + +class AbstractBackend { + function authenticate($username, $passwd) { + trigger_error('AbstractBackend::authenticate() needs to be overridden in a subclass.', E_USER_ERROR); + } +} + +class HtpasswdBackend extends AbstractBackend { + function HtpasswdBackend() { + } + + function authenticate($username, $passd) { + $authfile = file("/var/run/htpasswd"); + + /* sanity check to ensure that /usr/local/www/.htpasswd doesn't exist */ + unlink_if_exists("/usr/local/www/.htpasswd"); + + $matches=""; + if(!($line = array_shift(preg_grep("/^$username:.*$/", $authfile)))) + return false; + + /* Get crypted password */ + preg_match("/^$username:((\\$1\\$[.\d\w_\/]{8}\\$)[.\d\w_\/]{22})$/", $line, $matches); + $pass = $matches[1]; + $salt = $matches[2]; + + /* Encrypt entered password with salt + * And finally validate password + */ + if ($pass == crypt($passwd, $salt)) + return true; + else + return false; + } +} + +class PasswdBackend extends AbstractBackend { + function PasswdBackend() { + } + + function authenticate($username, $passd) { + $authfile = file("/etc/master.passwd"); + + $matches=""; + + /* Check to see if user even exists */ + if(!($line = array_shift(preg_grep("/^$username:.*$/", $authfile)))) + return false; + + /* Get crypted password */ + preg_match("/^$username:((\\$1\\$[.\d\w_\/]{8}\\$)[.\d\w_\/]{22})$/", $line, $matches); + $pass = $matches[1]; + $salt = $matches[2]; + + /* Encrypt entered password with salt + * And finally validate password + */ + if ($pass == crypt($passwd, $salt)) + return true; + else + return false; + } +} + +class PamBackend extends AbstractBackend { + function PamBackend() { + } + + function authenticate($username, $passd) { + /* we do not support blank pwds, don't we? */ + if ($username == "" || passwd == "") { return false; } + + if(! extension_loaded( 'pam_auth' )) { + if(! @dl( 'pam_auth.so' )) { + return false; + } else { + /* no php file no auth, sorry */ + if (! file_exists("/etc/pam.d/php")) { + if (! file_exists("/etc/pam.d")) { mkdir("/etc/pam.d"); } + + $pam_php = <<<EOD +# /etc/pam.d/php +# +# note: both an auth and account entry are required + +# auth +auth required pam_nologin.so no_warn +auth sufficient pam_opie.so no_warn no_fake_prompts +auth requisite pam_opieaccess.so no_warn allow_local +auth required pam_unix.so no_warn try_first_pass + +# account +account required pam_unix.so + +# session +session required pam_permit.so + +# password +password required pam_unix.so no_warn try_first_pass + +EOD; + + file_put_contents("/etc/pam.d/php", $pam_php); + } // end if + + if (pam_auth($username, $passwd, &$error)) { + return true; + } else { + return false; + } + } // end if + } // end if + } // end function +} + +class RadiusBackend extends AbstractBackend { + function RadiusBackend() { + } + + function authenticate($username, $passwd) { + global $config, $debug; + $ret = false; + $radiusservers = $config['system']['radius']['servers']; + + $rauth = new Auth_RADIUS_PAP($username, $passwd); + foreach ($radiusservers as $radsrv) { + // Add a new server to our instance + $rauth->addServer($radsrv['ipaddr'], $radsrv['port'], $radsrv['sharedsecret']); + } + + if (!$rauth->start()) { + $retvalue['auth_val'] = 1; + $retvalue['error'] = $rauth->getError(); + if ($debug) + printf("Radius start: %s", $retvalue['error']); + } + + // XXX - billm - somewhere in here we need to handle securid challenge/response + + // Send request + $result = $rauth->send(); + + if (PEAR::isError($result)) { + $retvalue['auth_val'] = 1; + $retvalue['error'] = $result->getMessage(); + if ($debug) + printf("Radius send failed: %s", $retvalue['error']); + } else if ($result === true) { + $retvalue['auth_val'] = 2; + if ($debug) + printf (gettext("Radius Auth succeeded")); + $ret = true; + } else { + $retvalue['auth_val'] = 3; + if ($debug) + printf (gettext("Radius Auth rejected")); + } + // close OO RADIUS_AUTHENTICATION + $rauth->close(); + + return $ret; + } // end function +} + +class LdapBackend extends AbstractBackend { + function LdapBackend() { + } + + function authenticate($username, $passwd) { + $ldapserver = $config['system']['ldap']['server']; + $ldapport = isset($config['system']['ldap']['port']) ? $config['system']['ldap']['server'] : 389; + $retval = false; + + $connection = ldap_connect($ldapserver, $ldapport) + or die("Could not connect to $ldaphost"); + + if ($connection) { + $bind = ldap_bind($connection); + + if ($bind) { + $basedn = $config['system']['ldap']['basedn']; + $result = ldap_search($connection, $basedn, "uid={$username}"); + $info = ldap_get_entries($connection, $result); + $userPassword = $info[0]['userPassword']; + + if ($userPassword == $passwd) { + $retval = true; + } else { + $retval = false; + } + } // end if + } // end if + + return $retval; + } +} +?>
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