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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (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 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/types.h>
#include <sys/varargs.h>
#include <string.h>
#include <syslog.h>
#include <stdlib.h>
#include <unistd.h>
#include <pwd.h>
#include <nss_dbdefs.h>
#include <security/pam_appl.h>
#include <security/pam_modules.h>
#include <security/pam_impl.h>
#include <libintl.h>
#include <passwdutil.h>
#include <errno.h>
#include <netsmb/smb_keychain.h>
/*ARGSUSED*/
int
pam_sm_authenticate(pam_handle_t *pamh, int flags, int argc, const char **argv)
{
return (PAM_IGNORE);
}
/*ARGSUSED*/
int
pam_sm_setcred(pam_handle_t *pamh, int flags, int argc, const char **argv)
{
boolean_t debug = B_FALSE;
char dom[20];
char *user;
char *pw;
char *service;
struct passwd pwbuf;
char buf[NSS_BUFLEN_PASSWD];
char *home;
uid_t uid;
int res = PAM_SUCCESS;
int i, mask;
for (i = 0; i < argc; i++) {
if (strcmp(argv[i], "debug") == 0)
debug = B_TRUE;
}
/* Since our creds don't time out, ignore a refresh. */
if ((flags & PAM_REFRESH_CRED) != 0)
return (PAM_IGNORE);
/* Check for unknown options */
mask = PAM_ESTABLISH_CRED | PAM_REINITIALIZE_CRED | PAM_DELETE_CRED;
if ((flags & ~mask) != 0)
return (PAM_IGNORE);
(void) pam_get_item(pamh, PAM_SERVICE, (void **)&service);
(void) pam_get_item(pamh, PAM_USER, (void **)&user);
if (user == NULL || *user == '\0') {
__pam_log(LOG_AUTH | LOG_ERR,
"pam_smbfs_login: username is empty");
return (PAM_IGNORE);
}
if (getpwnam_r(user, &pwbuf, buf, sizeof (buf)) == NULL) {
__pam_log(LOG_AUTH | LOG_ERR,
"pam_smbfs_login: username %s can't be found", user);
return (PAM_IGNORE);
}
uid = pwbuf.pw_uid;
home = pwbuf.pw_dir;
(void) pam_get_item(pamh, PAM_AUTHTOK, (void **)&pw);
if (pw == NULL) {
/*
* A module on the stack has removed PAM_AUTHTOK.
*/
return (PAM_IGNORE);
}
res = smbfs_default_dom_usr(home, NULL, dom, sizeof (dom), NULL, 0);
if (res != 0)
(void) strcpy(dom, "WORKGROUP");
if (debug)
__pam_log(LOG_AUTH | LOG_DEBUG,
"pam_smbfs_login: service %s, dom %s, user %s",
service, dom, user);
if ((flags & (PAM_ESTABLISH_CRED | PAM_REINITIALIZE_CRED)) != 0)
res = smbfs_keychain_add(uid, dom, user, pw);
if ((flags & PAM_DELETE_CRED) != 0)
res = smbfs_keychain_del(uid, dom, user);
/*
* map errors to user messages and PAM return codes.
*/
switch (res) {
case SMB_KEYCHAIN_SUCCESS:
if (debug)
__pam_log(LOG_AUTH | LOG_DEBUG,
"smbfs password successfully stored for %s", user);
break;
case SMB_KEYCHAIN_BADPASSWD:
__pam_log(LOG_AUTH | LOG_ERR, "smbfs password is invalid");
break;
case SMB_KEYCHAIN_BADDOMAIN:
__pam_log(LOG_AUTH | LOG_ERR,
"%s: smbfs domain %s is invalid", service, dom);
break;
case SMB_KEYCHAIN_BADUSER:
__pam_log(LOG_AUTH | LOG_ERR, "smbfs user %s is invalid", user);
break;
case SMB_KEYCHAIN_NODRIVER:
__pam_log(LOG_AUTH | LOG_ERR,
"driver open failed (%s), smbfs password not stored",
strerror(errno));
break;
case SMB_KEYCHAIN_UNKNOWN:
__pam_log(LOG_AUTH | LOG_ERR,
"Unexpected failure, smbfs password not stored");
break;
default:
__pam_log(LOG_AUTH | LOG_ERR,
"driver ioctl failed (%s), smbfs password not stored",
strerror(errno));
break;
}
return (PAM_IGNORE);
}
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