diff options
Diffstat (limited to 'Linux-PAM/modules/pam_pwdb/pam_unix_auth.-c')
| -rw-r--r-- | Linux-PAM/modules/pam_pwdb/pam_unix_auth.-c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/Linux-PAM/modules/pam_pwdb/pam_unix_auth.-c b/Linux-PAM/modules/pam_pwdb/pam_unix_auth.-c new file mode 100644 index 00000000..14d74b74 --- /dev/null +++ b/Linux-PAM/modules/pam_pwdb/pam_unix_auth.-c @@ -0,0 +1,131 @@ +/* + * $Id: pam_unix_auth.-c,v 1.1.1.1 2001/04/29 04:17:28 hartmans Exp $ + * + * See end of file for Copyright information. + */ + +static const char rcsid_auth[] = +"$Id: pam_unix_auth.-c,v 1.1.1.1 2001/04/29 04:17:28 hartmans Exp $: pam_unix_auth.-c,v 1.2 1996/09/05 06:46:53 morgan Exp morgan $\n" +" - PAM_PWDB authentication functions. <morgan@parc.power.net>"; + +/* + * _unix_auth() is a front-end for UNIX/shadow authentication + * + * First, obtain the password from the user. Then use a + * routine in 'support.-c' to authenticate the user. + */ + +#define _UNIX_AUTHTOK "-UN*X-PASS" + +static int _unix_auth(pam_handle_t *pamh, unsigned int ctrl) +{ + int retval; + const char *name, *p; + + D(("called.")); + + /* get the user'name' */ + + retval = _unix_get_user(pamh, ctrl, NULL, &name); + if (retval != PAM_SUCCESS ) { + if (retval != PAM_CONV_AGAIN) { + if ( on(UNIX_DEBUG,ctrl) ) { + _log_err(LOG_DEBUG, "auth could not identify user"); + } + } else { + D(("pam_get_user/conv() function is not ready yet")); + /* it is safe to resume this function so we translate this + retval to the value that indicates we're happy to resume. */ + retval = PAM_INCOMPLETE; + } + return retval; + } + + /* if this user does not have a password... */ + + if ( _unix_blankpasswd(ctrl, name) ) { + D(("user '%s' has blank passwd", name)); + name = NULL; + return PAM_SUCCESS; + } + + /* get this user's authentication token */ + + retval = _unix_read_password(pamh, ctrl, NULL, "Password: ", NULL + , _UNIX_AUTHTOK, &p); + if (retval != PAM_SUCCESS) { + if (retval != PAM_CONV_AGAIN) { + _log_err(LOG_CRIT, "auth could not identify password for [%s]" + , name); + } else { + D(("conversation function is not ready yet")); + /* it is safe to resume this function so we translate this + retval to the value that indicates we're happy to resume. */ + retval = PAM_INCOMPLETE; + } + name = NULL; + return retval; + } + D(("user=%s, password=[%s]", name, p)); + + /* verify the password of this user */ + retval = _unix_verify_password(pamh, name, p, ctrl); + name = p = NULL; + + D(("done [%d]", retval)); + + return retval; +} + +/* + * This function is for setting unix credentials. Sun has indicated + * that there are *NO* authentication credentials for unix. The + * obvious credentials would be the group membership of the user as + * listed in the /etc/group file. However, Sun indicates that it is + * the responsibility of the application to set these. + */ + +static int _unix_set_credentials(pam_handle_t *pamh, unsigned int ctrl) +{ + D(("called <empty function> returning.")); + + return PAM_SUCCESS; +} + +/******************************************************************** + * Copyright (c) Alexander O. Yuriev, 1996. + * Copyright (c) Andrew G. Morgan <morgan@parc.power.net> 1996 + * Copyright (c) Cristian Gafton <gafton@redhat.com> 1996, 1997 + * + * 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. + */ + |