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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include "ldap_headers.h"
/*
*
* LDAP module for pam_sm_authenticate.
*
* options -
*
* debug
* nowarn
*/
/*
* pam_sm_authenticate():
* Authenticate user.
*/
/*ARGSUSED*/
int
pam_sm_authenticate(
pam_handle_t *pamh,
int flags,
int argc,
const char **argv)
{
char *service = NULL;
char *user = NULL;
int err;
int result = PAM_AUTH_ERR;
int debug = 0;
int i;
char *password = NULL;
ns_cred_t *credp = NULL;
int nowarn = 0;
/* Get the service and user */
if ((err = pam_get_item(pamh, PAM_SERVICE, (void **)&service))
!= PAM_SUCCESS ||
(err = pam_get_item(pamh, PAM_USER, (void **)&user)) != PAM_SUCCESS)
return (err);
/*
* Check options passed to this module.
* Silently ignore try_first_pass and use_first_pass options
* for the time being.
*/
for (i = 0; i < argc; i++) {
if (strcmp(argv[i], "debug") == 0)
debug = 1;
else if (strcmp(argv[i], "nowarn") == 0)
nowarn = 1;
else if ((strcmp(argv[i], "try_first_pass") != 0) &&
(strcmp(argv[i], "use_first_pass") != 0))
syslog(LOG_AUTH | LOG_DEBUG,
"ldap pam_sm_authenticate(%s), "
"illegal scheme option %s", service, argv[i]);
}
if (debug)
syslog(LOG_AUTH | LOG_DEBUG,
"ldap pam_sm_authenticate(%s %s), flags = %x %s",
service, (user && *user != '\0')?user:"no-user", flags,
(nowarn)? ", nowarn": "");
if (!user || *user == '\0')
return (PAM_USER_UNKNOWN);
/* Get the password entered in the first scheme if any */
(void) pam_get_item(pamh, PAM_AUTHTOK, (void **) &password);
if (password == NULL) {
if (debug)
syslog(LOG_AUTH | LOG_DEBUG,
"ldap pam_sm_authenticate(%s %s), "
"AUTHTOK not set", service, user);
return (PAM_AUTH_ERR);
}
/*
* Authenticate user using the password from PAM_AUTHTOK.
* If no password available or if authentication fails
* return the appropriate error.
*/
result = authenticate(&credp, user, password, NULL);
if (result == PAM_NEW_AUTHTOK_REQD) {
/*
* PAM_NEW_AUTHTOK_REQD means the
* user's password is good but needs
* to change immediately. If the service
* is login or similar programs, the
* user will be asked to change the
* password after the account management
* module is called and determined that
* the password has expired.
* So change the rc to PAM_SUCCESS here.
*/
result = PAM_SUCCESS;
} else if (result == PAM_AUTHTOK_EXPIRED) {
/*
* Authentication token is the right one but
* expired. Consider this as pass.
* Change rc to PAM_SUCCESS.
*/
result = PAM_SUCCESS;
}
if (credp != NULL)
(void) __ns_ldap_freeCred(&credp);
return (result);
}
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