2 Unix SMB/CIFS implementation.
4 Copyright (C) Andrew Tridgell 1992-2001
5 Copyright (C) John H Terpsta 1999-2001
6 Copyright (C) Andrew Bartlett 2001
7 Copyright (C) Jeremy Allison 2001
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
24 * This module provides PAM based functions for validation of
25 * username/password pairs, account managment, session and access control.
26 * Note: SMB password checking is done in smbpass.c
32 #define DBGC_CLASS DBGC_AUTH
36 /*******************************************************************
37 * Handle PAM authentication
38 * - Access, Authentication, Session, Password
39 * Note: See PAM Documentation and refer to local system PAM implementation
40 * which determines what actions/limitations/allowances become affected.
41 *********************************************************************/
43 #if defined(HAVE_SECURITY_PAM_APPL_H)
44 #include <security/pam_appl.h>
45 #elif defined(HAVE_PAM_PAM_APPL_H)
46 #include <pam/pam_appl.h>
50 * Structure used to communicate between the conversation function
51 * and the server_login/change password functions.
54 struct smb_pam_userdata {
55 const char *PAM_username;
56 const char *PAM_password;
57 const char *PAM_newpassword;
60 typedef int (*smb_pam_conv_fn)(int, const struct pam_message **, struct pam_response **, void *appdata_ptr);
63 * Macros to help make life easy
66 static char *smb_pam_copy_string(const char *s)
74 static char *smb_pam_copy_fstring(const char *s)
82 /*******************************************************************
84 *********************************************************************/
86 static bool smb_pam_error_handler(pam_handle_t *pamh, int pam_error, const char *msg, int dbglvl)
89 if( pam_error != PAM_SUCCESS) {
90 DEBUG(dbglvl, ("smb_pam_error_handler: PAM: %s : %s\n",
91 msg, pam_strerror(pamh, pam_error)));
97 /*******************************************************************
98 This function is a sanity check, to make sure that we NEVER report
100 *********************************************************************/
102 static bool smb_pam_nt_status_error_handler(pam_handle_t *pamh, int pam_error,
103 const char *msg, int dbglvl,
106 *nt_status = pam_to_nt_status(pam_error);
108 if (smb_pam_error_handler(pamh, pam_error, msg, dbglvl))
111 if (NT_STATUS_IS_OK(*nt_status)) {
112 /* Complain LOUDLY */
113 DEBUG(0, ("smb_pam_nt_status_error_handler: PAM: BUG: PAM and NT_STATUS \
114 error MISMATCH, forcing to NT_STATUS_LOGON_FAILURE"));
115 *nt_status = NT_STATUS_LOGON_FAILURE;
121 * PAM conversation function
122 * Here we assume (for now, at least) that echo on means login name, and
123 * echo off means password.
126 static int smb_pam_conv(int num_msg,
127 const struct pam_message **msg,
128 struct pam_response **resp,
132 struct pam_response *reply = NULL;
133 struct smb_pam_userdata *udp = (struct smb_pam_userdata *)appdata_ptr;
141 * Apparantly HPUX has a buggy PAM that doesn't support the
142 * appdata_ptr. Fail if this is the case. JRA.
146 DEBUG(0,("smb_pam_conv: PAM on this system is broken - appdata_ptr == NULL !\n"));
150 reply = SMB_MALLOC_ARRAY(struct pam_response, num_msg);
154 memset(reply, '\0', sizeof(struct pam_response) * num_msg);
156 for (replies = 0; replies < num_msg; replies++) {
157 switch (msg[replies]->msg_style) {
158 case PAM_PROMPT_ECHO_ON:
159 reply[replies].resp_retcode = PAM_SUCCESS;
160 reply[replies].resp = smb_pam_copy_string(
165 case PAM_PROMPT_ECHO_OFF:
166 reply[replies].resp_retcode = PAM_SUCCESS;
167 reply[replies].resp = smb_pam_copy_string(
177 reply[replies].resp_retcode = PAM_SUCCESS;
178 reply[replies].resp = NULL;
182 /* Must be an error of some sort... */
193 * PAM password change conversation function
194 * Here we assume (for now, at least) that echo on means login name, and
195 * echo off means password.
198 static void special_char_sub(char *buf)
200 all_string_sub(buf, "\\n", "", 0);
201 all_string_sub(buf, "\\r", "", 0);
202 all_string_sub(buf, "\\s", " ", 0);
203 all_string_sub(buf, "\\t", "\t", 0);
206 static void pwd_sub(char *buf, const char *username, const char *oldpass, const char *newpass)
208 fstring_sub(buf, "%u", username);
209 all_string_sub(buf, "%o", oldpass, sizeof(fstring));
210 all_string_sub(buf, "%n", newpass, sizeof(fstring));
215 struct chat_struct *next, *prev;
220 /**************************************************************
221 Create a linked list containing chat data.
222 ***************************************************************/
224 static struct chat_struct *make_pw_chat(const char *p)
228 struct chat_struct *list = NULL;
229 struct chat_struct *t;
230 TALLOC_CTX *frame = talloc_stackframe();
233 t = SMB_MALLOC_P(struct chat_struct);
235 DEBUG(0,("make_pw_chat: malloc failed!\n"));
242 DLIST_ADD_END(list, t, struct chat_struct*);
244 if (!next_token_talloc(frame, &p, &prompt, NULL)) {
248 if (strequal(prompt,".")) {
252 special_char_sub(prompt);
253 fstrcpy(t->prompt, prompt);
254 strlower_m(t->prompt);
255 trim_char(t->prompt, ' ', ' ');
257 if (!next_token_talloc(frame, &p, &reply, NULL)) {
261 if (strequal(reply,".")) {
265 special_char_sub(reply);
266 fstrcpy(t->reply, reply);
267 strlower_m(t->reply);
268 trim_char(t->reply, ' ', ' ');
275 static void free_pw_chat(struct chat_struct *list)
278 struct chat_struct *old_head = list;
279 DLIST_REMOVE(list, list);
284 static int smb_pam_passchange_conv(int num_msg,
285 const struct pam_message **msg,
286 struct pam_response **resp,
290 struct pam_response *reply = NULL;
291 fstring current_prompt;
292 fstring current_reply;
293 struct smb_pam_userdata *udp = (struct smb_pam_userdata *)appdata_ptr;
294 struct chat_struct *pw_chat;
295 struct chat_struct *t;
299 DEBUG(10,("smb_pam_passchange_conv: starting converstation for %d messages\n", num_msg));
304 if ((pw_chat = make_pw_chat(lp_passwd_chat())) == NULL)
308 * Apparantly HPUX has a buggy PAM that doesn't support the
309 * appdata_ptr. Fail if this is the case. JRA.
313 DEBUG(0,("smb_pam_passchange_conv: PAM on this system is broken - appdata_ptr == NULL !\n"));
314 free_pw_chat(pw_chat);
318 reply = SMB_MALLOC_ARRAY(struct pam_response, num_msg);
320 DEBUG(0,("smb_pam_passchange_conv: malloc for reply failed!\n"));
321 free_pw_chat(pw_chat);
325 for (replies = 0; replies < num_msg; replies++) {
327 DEBUG(10,("smb_pam_passchange_conv: Processing message %d\n", replies));
328 switch (msg[replies]->msg_style) {
329 case PAM_PROMPT_ECHO_ON:
330 DEBUG(10,("smb_pam_passchange_conv: PAM_PROMPT_ECHO_ON: PAM said: %s\n", msg[replies]->msg));
331 fstrcpy(current_prompt, msg[replies]->msg);
332 trim_char(current_prompt, ' ', ' ');
333 for (t=pw_chat; t; t=t->next) {
335 DEBUG(10,("smb_pam_passchange_conv: PAM_PROMPT_ECHO_ON: trying to match |%s| to |%s|\n",
336 t->prompt, current_prompt ));
338 if (unix_wild_match(t->prompt, current_prompt)) {
339 fstrcpy(current_reply, t->reply);
340 DEBUG(10,("smb_pam_passchange_conv: PAM_PROMPT_ECHO_ON: We sent: %s\n", current_reply));
341 pwd_sub(current_reply, udp->PAM_username, udp->PAM_password, udp->PAM_newpassword);
342 #ifdef DEBUG_PASSWORD
343 DEBUG(100,("smb_pam_passchange_conv: PAM_PROMPT_ECHO_ON: We actually sent: %s\n", current_reply));
345 reply[replies].resp_retcode = PAM_SUCCESS;
346 reply[replies].resp = smb_pam_copy_fstring(
354 DEBUG(3,("smb_pam_passchange_conv: Could not find reply for PAM prompt: %s\n",msg[replies]->msg));
355 free_pw_chat(pw_chat);
361 case PAM_PROMPT_ECHO_OFF:
362 DEBUG(10,("smb_pam_passchange_conv: PAM_PROMPT_ECHO_OFF: PAM said: %s\n", msg[replies]->msg));
363 fstrcpy(current_prompt, msg[replies]->msg);
364 trim_char(current_prompt, ' ', ' ');
365 for (t=pw_chat; t; t=t->next) {
367 DEBUG(10,("smb_pam_passchange_conv: PAM_PROMPT_ECHO_OFF: trying to match |%s| to |%s|\n",
368 t->prompt, current_prompt ));
370 if (unix_wild_match(t->prompt, current_prompt)) {
371 fstrcpy(current_reply, t->reply);
372 DEBUG(10,("smb_pam_passchange_conv: PAM_PROMPT_ECHO_OFF: We sent: %s\n", current_reply));
373 pwd_sub(current_reply, udp->PAM_username, udp->PAM_password, udp->PAM_newpassword);
374 reply[replies].resp_retcode = PAM_SUCCESS;
375 reply[replies].resp = smb_pam_copy_fstring(
377 #ifdef DEBUG_PASSWORD
378 DEBUG(100,("smb_pam_passchange_conv: PAM_PROMPT_ECHO_OFF: We actually sent: %s\n", current_reply));
387 DEBUG(3,("smb_pam_passchange_conv: Could not find reply for PAM prompt: %s\n",msg[replies]->msg));
388 free_pw_chat(pw_chat);
399 reply[replies].resp_retcode = PAM_SUCCESS;
400 reply[replies].resp = NULL;
404 /* Must be an error of some sort... */
405 free_pw_chat(pw_chat);
411 free_pw_chat(pw_chat);
417 /***************************************************************************
418 Free up a malloced pam_conv struct.
419 ****************************************************************************/
421 static void smb_free_pam_conv(struct pam_conv *pconv)
424 SAFE_FREE(pconv->appdata_ptr);
429 /***************************************************************************
430 Allocate a pam_conv struct.
431 ****************************************************************************/
433 static struct pam_conv *smb_setup_pam_conv(smb_pam_conv_fn smb_pam_conv_fnptr, const char *user,
434 const char *passwd, const char *newpass)
436 struct pam_conv *pconv = SMB_MALLOC_P(struct pam_conv);
437 struct smb_pam_userdata *udp = SMB_MALLOC_P(struct smb_pam_userdata);
439 if (pconv == NULL || udp == NULL) {
445 udp->PAM_username = user;
446 udp->PAM_password = passwd;
447 udp->PAM_newpassword = newpass;
449 pconv->conv = smb_pam_conv_fnptr;
450 pconv->appdata_ptr = (void *)udp;
455 * PAM Closing out cleanup handler
458 static bool smb_pam_end(pam_handle_t *pamh, struct pam_conv *smb_pam_conv_ptr)
462 smb_free_pam_conv(smb_pam_conv_ptr);
465 pam_error = pam_end(pamh, 0);
466 if(smb_pam_error_handler(pamh, pam_error, "End Cleanup Failed", 2) == True) {
467 DEBUG(4, ("smb_pam_end: PAM: PAM_END OK.\n"));
471 DEBUG(2,("smb_pam_end: PAM: not initialised"));
476 * Start PAM authentication for specified account
479 static bool smb_pam_start(pam_handle_t **pamh, const char *user, const char *rhost, struct pam_conv *pconv)
483 *pamh = (pam_handle_t *)NULL;
485 DEBUG(4,("smb_pam_start: PAM: Init user: %s\n", user));
487 pam_error = pam_start("samba", user, pconv, pamh);
488 if( !smb_pam_error_handler(*pamh, pam_error, "Init Failed", 0)) {
489 *pamh = (pam_handle_t *)NULL;
494 DEBUG(4,("smb_pam_start: PAM: setting rhost to: %s\n", rhost));
495 pam_error = pam_set_item(*pamh, PAM_RHOST, rhost);
496 if(!smb_pam_error_handler(*pamh, pam_error, "set rhost failed", 0)) {
497 smb_pam_end(*pamh, pconv);
498 *pamh = (pam_handle_t *)NULL;
503 DEBUG(4,("smb_pam_start: PAM: setting tty\n"));
504 pam_error = pam_set_item(*pamh, PAM_TTY, "samba");
505 if (!smb_pam_error_handler(*pamh, pam_error, "set tty failed", 0)) {
506 smb_pam_end(*pamh, pconv);
507 *pamh = (pam_handle_t *)NULL;
511 DEBUG(4,("smb_pam_start: PAM: Init passed for user: %s\n", user));
516 * PAM Authentication Handler
518 static NTSTATUS smb_pam_auth(pam_handle_t *pamh, const char *user)
521 NTSTATUS nt_status = NT_STATUS_LOGON_FAILURE;
524 * To enable debugging set in /etc/pam.d/samba:
525 * auth required /lib/security/pam_pwdb.so nullok shadow audit
528 DEBUG(4,("smb_pam_auth: PAM: Authenticate User: %s\n", user));
529 pam_error = pam_authenticate(pamh, PAM_SILENT | lp_null_passwords() ? 0 : PAM_DISALLOW_NULL_AUTHTOK);
532 DEBUG(2, ("smb_pam_auth: PAM: Authentication Error for user %s\n", user));
534 case PAM_CRED_INSUFFICIENT:
535 DEBUG(2, ("smb_pam_auth: PAM: Insufficient Credentials for user %s\n", user));
537 case PAM_AUTHINFO_UNAVAIL:
538 DEBUG(2, ("smb_pam_auth: PAM: Authentication Information Unavailable for user %s\n", user));
540 case PAM_USER_UNKNOWN:
541 DEBUG(2, ("smb_pam_auth: PAM: Username %s NOT known to Authentication system\n", user));
544 DEBUG(2, ("smb_pam_auth: PAM: One or more authentication modules reports user limit for user %s exceeeded\n", user));
547 DEBUG(0, ("smb_pam_auth: PAM: One or more PAM modules failed to load for user %s\n", user));
550 DEBUG(4, ("smb_pam_auth: PAM: User %s Authenticated OK\n", user));
553 DEBUG(0, ("smb_pam_auth: PAM: UNKNOWN ERROR while authenticating user %s\n", user));
557 smb_pam_nt_status_error_handler(pamh, pam_error, "Authentication Failure", 2, &nt_status);
562 * PAM Account Handler
564 static NTSTATUS smb_pam_account(pam_handle_t *pamh, const char * user)
567 NTSTATUS nt_status = NT_STATUS_ACCOUNT_DISABLED;
569 DEBUG(4,("smb_pam_account: PAM: Account Management for User: %s\n", user));
570 pam_error = pam_acct_mgmt(pamh, PAM_SILENT); /* Is user account enabled? */
571 switch( pam_error ) {
572 case PAM_AUTHTOK_EXPIRED:
573 DEBUG(2, ("smb_pam_account: PAM: User %s is valid but password is expired\n", user));
575 case PAM_ACCT_EXPIRED:
576 DEBUG(2, ("smb_pam_account: PAM: User %s no longer permitted to access system\n", user));
579 DEBUG(2, ("smb_pam_account: PAM: There was an authentication error for user %s\n", user));
581 case PAM_PERM_DENIED:
582 DEBUG(0, ("smb_pam_account: PAM: User %s is NOT permitted to access system at this time\n", user));
584 case PAM_USER_UNKNOWN:
585 DEBUG(0, ("smb_pam_account: PAM: User \"%s\" is NOT known to account management\n", user));
588 DEBUG(4, ("smb_pam_account: PAM: Account OK for User: %s\n", user));
591 DEBUG(0, ("smb_pam_account: PAM: UNKNOWN PAM ERROR (%d) during Account Management for User: %s\n", pam_error, user));
595 smb_pam_nt_status_error_handler(pamh, pam_error, "Account Check Failed", 2, &nt_status);
600 * PAM Credential Setting
603 static NTSTATUS smb_pam_setcred(pam_handle_t *pamh, const char * user)
606 NTSTATUS nt_status = NT_STATUS_NO_TOKEN;
609 * This will allow samba to aquire a kerberos token. And, when
610 * exporting an AFS cell, be able to /write/ to this cell.
613 DEBUG(4,("PAM: Account Management SetCredentials for User: %s\n", user));
614 pam_error = pam_setcred(pamh, (PAM_ESTABLISH_CRED|PAM_SILENT));
615 switch( pam_error ) {
616 case PAM_CRED_UNAVAIL:
617 DEBUG(0, ("smb_pam_setcred: PAM: Credentials not found for user:%s\n", user ));
619 case PAM_CRED_EXPIRED:
620 DEBUG(0, ("smb_pam_setcred: PAM: Credentials for user: \"%s\" EXPIRED!\n", user ));
622 case PAM_USER_UNKNOWN:
623 DEBUG(0, ("smb_pam_setcred: PAM: User: \"%s\" is NOT known so can not set credentials!\n", user ));
626 DEBUG(0, ("smb_pam_setcred: PAM: Unknown setcredentials error - unable to set credentials for %s\n", user ));
629 DEBUG(4, ("smb_pam_setcred: PAM: SetCredentials OK for User: %s\n", user));
632 DEBUG(0, ("smb_pam_setcred: PAM: UNKNOWN PAM ERROR (%d) during SetCredentials for User: %s\n", pam_error, user));
636 smb_pam_nt_status_error_handler(pamh, pam_error, "Set Credential Failure", 2, &nt_status);
641 * PAM Internal Session Handler
643 static bool smb_internal_pam_session(pam_handle_t *pamh, const char *user, const char *tty, bool flag)
648 DEBUG(4,("smb_internal_pam_session: PAM: tty set to: %s\n", tty));
649 pam_error = pam_set_item(pamh, PAM_TTY, tty);
650 if (!smb_pam_error_handler(pamh, pam_error, "set tty failed", 0))
655 pam_error = pam_open_session(pamh, PAM_SILENT);
656 if (!smb_pam_error_handler(pamh, pam_error, "session setup failed", 0))
659 pam_setcred(pamh, (PAM_DELETE_CRED|PAM_SILENT)); /* We don't care if this fails */
660 pam_error = pam_close_session(pamh, PAM_SILENT); /* This will probably pick up the error anyway */
661 if (!smb_pam_error_handler(pamh, pam_error, "session close failed", 0))
668 * Internal PAM Password Changer.
671 static bool smb_pam_chauthtok(pam_handle_t *pamh, const char * user)
675 DEBUG(4,("smb_pam_chauthtok: PAM: Password Change for User: %s\n", user));
677 pam_error = pam_chauthtok(pamh, PAM_SILENT); /* Change Password */
679 switch( pam_error ) {
680 case PAM_AUTHTOK_ERR:
681 DEBUG(2, ("PAM: unable to obtain the new authentication token - is password to weak?\n"));
684 /* This doesn't seem to be defined on Solaris. JRA */
685 #ifdef PAM_AUTHTOK_RECOVER_ERR
686 case PAM_AUTHTOK_RECOVER_ERR:
687 DEBUG(2, ("PAM: unable to obtain the old authentication token - was the old password wrong?.\n"));
691 case PAM_AUTHTOK_LOCK_BUSY:
692 DEBUG(2, ("PAM: unable to change the authentication token since it is currently locked.\n"));
694 case PAM_AUTHTOK_DISABLE_AGING:
695 DEBUG(2, ("PAM: Authentication token aging has been disabled.\n"));
697 case PAM_PERM_DENIED:
698 DEBUG(0, ("PAM: Permission denied.\n"));
701 DEBUG(0, ("PAM: Could not update all authentication token(s). No authentication tokens were updated.\n"));
703 case PAM_USER_UNKNOWN:
704 DEBUG(0, ("PAM: User not known to PAM\n"));
707 DEBUG(4, ("PAM: Account OK for User: %s\n", user));
710 DEBUG(0, ("PAM: UNKNOWN PAM ERROR (%d) for User: %s\n", pam_error, user));
713 if(!smb_pam_error_handler(pamh, pam_error, "Password Change Failed", 2)) {
717 /* If this point is reached, the password has changed. */
722 * PAM Externally accessible Session handler
725 bool smb_pam_claim_session(char *user, char *tty, char *rhost)
727 pam_handle_t *pamh = NULL;
728 struct pam_conv *pconv = NULL;
730 /* Ignore PAM if told to. */
732 if (!lp_obey_pam_restrictions())
735 if ((pconv = smb_setup_pam_conv(smb_pam_conv, user, NULL, NULL)) == NULL)
738 if (!smb_pam_start(&pamh, user, rhost, pconv))
741 if (!smb_internal_pam_session(pamh, user, tty, True)) {
742 smb_pam_end(pamh, pconv);
746 return smb_pam_end(pamh, pconv);
750 * PAM Externally accessible Session handler
753 bool smb_pam_close_session(char *user, char *tty, char *rhost)
755 pam_handle_t *pamh = NULL;
756 struct pam_conv *pconv = NULL;
758 /* Ignore PAM if told to. */
760 if (!lp_obey_pam_restrictions())
763 if ((pconv = smb_setup_pam_conv(smb_pam_conv, user, NULL, NULL)) == NULL)
766 if (!smb_pam_start(&pamh, user, rhost, pconv))
769 if (!smb_internal_pam_session(pamh, user, tty, False)) {
770 smb_pam_end(pamh, pconv);
774 return smb_pam_end(pamh, pconv);
778 * PAM Externally accessible Account handler
781 NTSTATUS smb_pam_accountcheck(const char *user, const char *rhost)
783 NTSTATUS nt_status = NT_STATUS_ACCOUNT_DISABLED;
784 pam_handle_t *pamh = NULL;
785 struct pam_conv *pconv = NULL;
787 /* Ignore PAM if told to. */
789 if (!lp_obey_pam_restrictions())
792 if ((pconv = smb_setup_pam_conv(smb_pam_conv, user, NULL, NULL)) == NULL)
793 return NT_STATUS_NO_MEMORY;
795 if (!smb_pam_start(&pamh, user, rhost, pconv))
796 return NT_STATUS_ACCOUNT_DISABLED;
798 if (!NT_STATUS_IS_OK(nt_status = smb_pam_account(pamh, user)))
799 DEBUG(0, ("smb_pam_accountcheck: PAM: Account Validation Failed - Rejecting User %s!\n", user));
801 smb_pam_end(pamh, pconv);
806 * PAM Password Validation Suite
809 NTSTATUS smb_pam_passcheck(const char * user, const char * password,
812 pam_handle_t *pamh = NULL;
813 NTSTATUS nt_status = NT_STATUS_LOGON_FAILURE;
814 struct pam_conv *pconv = NULL;
817 * Note we can't ignore PAM here as this is the only
818 * way of doing auths on plaintext passwords when
819 * compiled --with-pam.
822 if ((pconv = smb_setup_pam_conv(smb_pam_conv, user, password, NULL)) == NULL)
823 return NT_STATUS_LOGON_FAILURE;
825 if (!smb_pam_start(&pamh, user, rhost, pconv))
826 return NT_STATUS_LOGON_FAILURE;
828 if (!NT_STATUS_IS_OK(nt_status = smb_pam_auth(pamh, user))) {
829 DEBUG(0, ("smb_pam_passcheck: PAM: smb_pam_auth failed - Rejecting User %s !\n", user));
830 smb_pam_end(pamh, pconv);
834 if (!NT_STATUS_IS_OK(nt_status = smb_pam_account(pamh, user))) {
835 DEBUG(0, ("smb_pam_passcheck: PAM: smb_pam_account failed - Rejecting User %s !\n", user));
836 smb_pam_end(pamh, pconv);
840 if (!NT_STATUS_IS_OK(nt_status = smb_pam_setcred(pamh, user))) {
841 DEBUG(0, ("smb_pam_passcheck: PAM: smb_pam_setcred failed - Rejecting User %s !\n", user));
842 smb_pam_end(pamh, pconv);
846 smb_pam_end(pamh, pconv);
851 * PAM Password Change Suite
854 bool smb_pam_passchange(const char *user, const char *rhost,
855 const char *oldpassword, const char *newpassword)
857 /* Appropriate quantities of root should be obtained BEFORE calling this function */
858 struct pam_conv *pconv = NULL;
859 pam_handle_t *pamh = NULL;
861 if ((pconv = smb_setup_pam_conv(smb_pam_passchange_conv, user, oldpassword, newpassword)) == NULL)
864 if(!smb_pam_start(&pamh, user, rhost, pconv))
867 if (!smb_pam_chauthtok(pamh, user)) {
868 DEBUG(0, ("smb_pam_passchange: PAM: Password Change Failed for user %s!\n", user));
869 smb_pam_end(pamh, pconv);
873 return smb_pam_end(pamh, pconv);
878 /* If PAM not used, no PAM restrictions on accounts. */
879 NTSTATUS smb_pam_accountcheck(const char *user, const char *rhost)
884 /* If PAM not used, also no PAM restrictions on sessions. */
885 bool smb_pam_claim_session(char *user, char *tty, char *rhost)
890 /* If PAM not used, also no PAM restrictions on sessions. */
891 bool smb_pam_close_session(char *in_user, char *tty, char *rhost)
895 #endif /* WITH_PAM */