2 Unix SMB/CIFS implementation.
4 Winbind daemon - pam auth funcions
6 Copyright (C) Andrew Tridgell 2000
7 Copyright (C) Tim Potter 2001
8 Copyright (C) Andrew Bartlett 2001-2002
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 #define DBGC_CLASS DBGC_WINBIND
31 static NTSTATUS
append_info3_as_ndr(TALLOC_CTX
*mem_ctx
,
32 struct winbindd_cli_state
*state
,
33 NET_USER_INFO_3
*info3
)
37 if (!prs_init(&ps
, 256 /* Random, non-zero number */, mem_ctx
, MARSHALL
)) {
38 return NT_STATUS_NO_MEMORY
;
40 if (!net_io_user_info3("", info3
, &ps
, 1, 3)) {
42 return NT_STATUS_UNSUCCESSFUL
;
45 size
= prs_data_size(&ps
);
46 state
->response
.extra_data
= SMB_MALLOC(size
);
47 if (!state
->response
.extra_data
) {
49 return NT_STATUS_NO_MEMORY
;
51 memset( state
->response
.extra_data
, '\0', size
);
52 prs_copy_all_data_out(state
->response
.extra_data
, &ps
);
53 state
->response
.length
+= size
;
58 static NTSTATUS
check_info3_in_group(TALLOC_CTX
*mem_ctx
,
59 NET_USER_INFO_3
*info3
,
60 const char *group_sid
)
62 DOM_SID require_membership_of_sid
;
64 size_t num_all_sids
= (2 + info3
->num_groups2
+ info3
->num_other_sids
);
67 /* Parse the 'required group' SID */
69 if (!group_sid
|| !group_sid
[0]) {
70 /* NO sid supplied, all users may access */
74 if (!string_to_sid(&require_membership_of_sid
, group_sid
)) {
75 DEBUG(0, ("check_info3_in_group: could not parse %s as a SID!",
78 return NT_STATUS_INVALID_PARAMETER
;
81 all_sids
= TALLOC_ARRAY(mem_ctx
, DOM_SID
, num_all_sids
);
83 return NT_STATUS_NO_MEMORY
;
85 /* and create (by appending rids) the 'domain' sids */
87 sid_copy(&all_sids
[0], &(info3
->dom_sid
.sid
));
89 if (!sid_append_rid(&all_sids
[0], info3
->user_rid
)) {
90 DEBUG(3,("could not append user's primary RID 0x%x\n",
93 return NT_STATUS_INVALID_PARAMETER
;
97 sid_copy(&all_sids
[1], &(info3
->dom_sid
.sid
));
99 if (!sid_append_rid(&all_sids
[1], info3
->group_rid
)) {
100 DEBUG(3,("could not append additional group rid 0x%x\n",
103 return NT_STATUS_INVALID_PARAMETER
;
107 for (i
= 0; i
< info3
->num_groups2
; i
++) {
109 sid_copy(&all_sids
[j
], &(info3
->dom_sid
.sid
));
111 if (!sid_append_rid(&all_sids
[j
], info3
->gids
[i
].g_rid
)) {
112 DEBUG(3,("could not append additional group rid 0x%x\n",
113 info3
->gids
[i
].g_rid
));
115 return NT_STATUS_INVALID_PARAMETER
;
120 /* Copy 'other' sids. We need to do sid filtering here to
121 prevent possible elevation of privileges. See:
123 http://www.microsoft.com/windows2000/techinfo/administration/security/sidfilter.asp
126 for (i
= 0; i
< info3
->num_other_sids
; i
++) {
127 sid_copy(&all_sids
[info3
->num_groups2
+ i
+ 2],
128 &info3
->other_sids
[i
].sid
);
132 for (i
= 0; i
< j
; i
++) {
134 DEBUG(10, ("User has SID: %s\n",
135 sid_to_string(sid1
, &all_sids
[i
])));
136 if (sid_equal(&require_membership_of_sid
, &all_sids
[i
])) {
137 DEBUG(10, ("SID %s matches %s - user permitted to authenticate!\n",
138 sid_to_string(sid1
, &require_membership_of_sid
), sid_to_string(sid2
, &all_sids
[i
])));
143 /* Do not distinguish this error from a wrong username/pw */
145 return NT_STATUS_LOGON_FAILURE
;
148 static struct winbindd_domain
*find_auth_domain(const char *domain_name
)
150 struct winbindd_domain
*domain
;
153 domain
= find_domain_from_name_noinit(domain_name
);
154 if (domain
== NULL
) {
155 DEBUG(3, ("Authentication for domain [%s] "
156 "as it is not a trusted domain\n",
162 if (is_myname(domain_name
)) {
163 DEBUG(3, ("Authentication for domain %s (local domain "
164 "to this server) not supported at this "
165 "stage\n", domain_name
));
169 return find_our_domain();
172 static void set_auth_errors(struct winbindd_response
*resp
, NTSTATUS result
)
174 resp
->data
.auth
.nt_status
= NT_STATUS_V(result
);
175 fstrcpy(resp
->data
.auth
.nt_status_string
, nt_errstr(result
));
177 /* we might have given a more useful error above */
178 if (*resp
->data
.auth
.error_string
== '\0')
179 fstrcpy(resp
->data
.auth
.error_string
,
180 get_friendly_nt_error_msg(result
));
181 resp
->data
.auth
.pam_error
= nt_status_to_pam(result
);
184 /**********************************************************************
185 Authenticate a user with a clear text password
186 **********************************************************************/
188 void winbindd_pam_auth(struct winbindd_cli_state
*state
)
190 struct winbindd_domain
*domain
;
191 fstring name_domain
, name_user
;
193 /* Ensure null termination */
194 state
->request
.data
.auth
.user
195 [sizeof(state
->request
.data
.auth
.user
)-1]='\0';
197 /* Ensure null termination */
198 state
->request
.data
.auth
.pass
199 [sizeof(state
->request
.data
.auth
.pass
)-1]='\0';
201 DEBUG(3, ("[%5lu]: pam auth %s\n", (unsigned long)state
->pid
,
202 state
->request
.data
.auth
.user
));
204 /* Parse domain and username */
206 parse_domain_user(state
->request
.data
.auth
.user
,
207 name_domain
, name_user
);
209 domain
= find_auth_domain(name_domain
);
211 if (domain
== NULL
) {
212 set_auth_errors(&state
->response
, NT_STATUS_NO_SUCH_USER
);
213 DEBUG(5, ("Plain text authentication for %s returned %s "
215 state
->request
.data
.auth
.user
,
216 state
->response
.data
.auth
.nt_status_string
,
217 state
->response
.data
.auth
.pam_error
));
218 request_error(state
);
222 sendto_domain(state
, domain
);
225 enum winbindd_result
winbindd_dual_pam_auth(struct winbindd_domain
*domain
,
226 struct winbindd_cli_state
*state
)
229 fstring name_domain
, name_user
;
230 const char *srv_name_slash
;
231 NET_USER_INFO_3 info3
;
232 unsigned char *session_key
;
233 struct rpc_pipe_client
*pipe_cli
;
238 DOM_CRED
*credentials
;
240 unsigned char local_lm_response
[24];
241 unsigned char local_nt_response
[24];
242 struct winbindd_domain
*contact_domain
;
245 /* Ensure null termination */
246 state
->request
.data
.auth
.user
[sizeof(state
->request
.data
.auth
.user
)-1]='\0';
248 /* Ensure null termination */
249 state
->request
.data
.auth
.pass
[sizeof(state
->request
.data
.auth
.pass
)-1]='\0';
251 DEBUG(3, ("[%5lu]: pam auth %s\n", (unsigned long)state
->pid
,
252 state
->request
.data
.auth
.user
));
254 /* Parse domain and username */
256 parse_domain_user(state
->request
.data
.auth
.user
, name_domain
, name_user
);
258 /* do password magic */
261 generate_random_buffer(chal
, 8);
262 if (lp_client_ntlmv2_auth()) {
263 DATA_BLOB server_chal
;
264 DATA_BLOB names_blob
;
265 DATA_BLOB nt_response
;
266 DATA_BLOB lm_response
;
267 server_chal
= data_blob_talloc(state
->mem_ctx
, chal
, 8);
269 /* note that the 'workgroup' here is a best guess - we don't know
270 the server's domain at this point. The 'server name' is also
273 names_blob
= NTLMv2_generate_names_blob(global_myname(), lp_workgroup());
275 if (!SMBNTLMv2encrypt(name_user
, name_domain
,
276 state
->request
.data
.auth
.pass
,
279 &lm_response
, &nt_response
, NULL
)) {
280 data_blob_free(&names_blob
);
281 data_blob_free(&server_chal
);
282 DEBUG(0, ("winbindd_pam_auth: SMBNTLMv2encrypt() failed!\n"));
283 result
= NT_STATUS_NO_MEMORY
;
286 data_blob_free(&names_blob
);
287 data_blob_free(&server_chal
);
288 lm_resp
= data_blob_talloc(state
->mem_ctx
, lm_response
.data
,
290 nt_resp
= data_blob_talloc(state
->mem_ctx
, nt_response
.data
,
292 data_blob_free(&lm_response
);
293 data_blob_free(&nt_response
);
296 if (lp_client_lanman_auth()
297 && SMBencrypt(state
->request
.data
.auth
.pass
,
299 local_lm_response
)) {
300 lm_resp
= data_blob_talloc(state
->mem_ctx
,
302 sizeof(local_lm_response
));
304 lm_resp
= data_blob(NULL
, 0);
306 SMBNTencrypt(state
->request
.data
.auth
.pass
,
310 nt_resp
= data_blob_talloc(state
->mem_ctx
,
312 sizeof(local_nt_response
));
316 /* what domain should we contact? */
319 if (!(contact_domain
= find_domain_from_name(name_domain
))) {
320 DEBUG(3, ("Authentication for domain for [%s] -> [%s]\\[%s] failed as %s is not a trusted domain\n",
321 state
->request
.data
.auth
.user
, name_domain
, name_user
, name_domain
));
322 result
= NT_STATUS_NO_SUCH_USER
;
327 if (is_myname(name_domain
)) {
328 DEBUG(3, ("Authentication for domain %s (local domain to this server) not supported at this stage\n", name_domain
));
329 result
= NT_STATUS_NO_SUCH_USER
;
333 contact_domain
= find_our_domain();
336 srv_name_slash
= talloc_asprintf(state
->mem_ctx
, "\\\\%s",
337 contact_domain
->dcname
);
338 if (srv_name_slash
== NULL
) {
339 DEBUG(0, ("talloc_asprintf failed\n"));
340 return WINBINDD_ERROR
;
343 /* check authentication loop */
349 ZERO_STRUCT(ret_creds
);
352 result
= cm_connect_netlogon(contact_domain
, state
->mem_ctx
,
353 &pipe_cli
, &session_key
,
356 if (!NT_STATUS_IS_OK(result
)) {
357 DEBUG(3, ("could not open handle to NETLOGON pipe\n"));
361 credentials
->timestamp
.time
= time(NULL
);
362 memcpy(&clnt_creds
, credentials
, sizeof(clnt_creds
));
364 /* Calculate the new credentials. */
365 cred_create(session_key
, &credentials
->challenge
,
366 clnt_creds
.timestamp
, &(clnt_creds
.challenge
));
368 result
= rpccli_netlogon_sam_network_logon(pipe_cli
,
381 /* We have to try a second time as cm_connect_netlogon
382 might not yet have noticed that the DC has killed
385 if (NT_STATUS_EQUAL(result
, NT_STATUS_UNSUCCESSFUL
)) {
390 /* if we get access denied, a possible cause was that we had
391 and open connection to the DC, but someone changed our
392 machine account password out from underneath us using 'net
393 rpc changetrustpw' */
395 if ( NT_STATUS_EQUAL(result
, NT_STATUS_ACCESS_DENIED
) ) {
396 DEBUG(3,("winbindd_pam_auth: sam_logon returned "
397 "ACCESS_DENIED. Maybe the trust account "
398 "password was changed and we didn't know it. "
399 "Killing connections to domain %s\n",
401 invalidate_cm_connection(&contact_domain
->conn
);
405 } while ( (attempts
< 2) && retry
);
407 /* Only check creds if we got a connection. */
408 if (contact_domain
->conn
.cli
&&
409 !(NT_STATUS_EQUAL(result
, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
) ||
410 NT_STATUS_EQUAL(result
, NT_STATUS_UNSUCCESSFUL
))) {
411 if (!clnt_deal_with_creds(session_key
, credentials
, &ret_creds
)) {
412 DEBUG(3, ("DC %s sent wrong credentials\n",
413 pipe_cli
->cli
->srv_name_slash
));
414 result
= NT_STATUS_ACCESS_DENIED
;
418 if (NT_STATUS_IS_OK(result
)) {
419 netsamlogon_cache_store(state
->mem_ctx
, name_user
, &info3
);
420 wcache_invalidate_samlogon(find_domain_from_name(name_domain
), &info3
);
422 /* Check if the user is in the right group */
424 if (!NT_STATUS_IS_OK(result
= check_info3_in_group(state
->mem_ctx
, &info3
, state
->request
.data
.auth
.require_membership_of_sid
))) {
425 DEBUG(3, ("User %s is not in the required group (%s), so plaintext authentication is rejected\n",
426 state
->request
.data
.auth
.user
,
427 state
->request
.data
.auth
.require_membership_of_sid
));
432 /* give us a more useful (more correct?) error code */
433 if ((NT_STATUS_EQUAL(result
, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
) || (NT_STATUS_EQUAL(result
, NT_STATUS_UNSUCCESSFUL
)))) {
434 result
= NT_STATUS_NO_LOGON_SERVERS
;
437 state
->response
.data
.auth
.nt_status
= NT_STATUS_V(result
);
438 fstrcpy(state
->response
.data
.auth
.nt_status_string
, nt_errstr(result
));
440 /* we might have given a more useful error above */
441 if (!*state
->response
.data
.auth
.error_string
)
442 fstrcpy(state
->response
.data
.auth
.error_string
, get_friendly_nt_error_msg(result
));
443 state
->response
.data
.auth
.pam_error
= nt_status_to_pam(result
);
445 DEBUG(NT_STATUS_IS_OK(result
) ? 5 : 2, ("Plain-text authentication for user %s returned %s (PAM: %d)\n",
446 state
->request
.data
.auth
.user
,
447 state
->response
.data
.auth
.nt_status_string
,
448 state
->response
.data
.auth
.pam_error
));
450 if ( NT_STATUS_IS_OK(result
) &&
451 (state
->request
.flags
& WBFLAG_PAM_AFS_TOKEN
) ) {
453 char *afsname
= SMB_STRDUP(lp_afs_username_map());
456 if (afsname
== NULL
) goto no_token
;
458 afsname
= realloc_string_sub(afsname
, "%D", name_domain
);
459 afsname
= realloc_string_sub(afsname
, "%u", name_user
);
460 afsname
= realloc_string_sub(afsname
, "%U", name_user
);
466 sid_copy(&user_sid
, &info3
.dom_sid
.sid
);
467 sid_append_rid(&user_sid
, info3
.user_rid
);
468 sid_to_string(sidstr
, &user_sid
);
469 afsname
= realloc_string_sub(afsname
, "%s", sidstr
);
472 if (afsname
== NULL
) goto no_token
;
476 DEBUG(10, ("Generating token for user %s\n", afsname
));
478 cell
= strchr(afsname
, '@');
480 if (cell
== NULL
) goto no_token
;
485 /* Append an AFS token string */
486 state
->response
.extra_data
=
487 afs_createtoken_str(afsname
, cell
);
489 if (state
->response
.extra_data
!= NULL
)
490 state
->response
.length
+=
491 strlen(state
->response
.extra_data
)+1;
497 return NT_STATUS_IS_OK(result
) ? WINBINDD_OK
: WINBINDD_ERROR
;
500 /**********************************************************************
501 Challenge Response Authentication Protocol
502 **********************************************************************/
504 void winbindd_pam_auth_crap(struct winbindd_cli_state
*state
)
506 struct winbindd_domain
*domain
= NULL
;
507 const char *domain_name
= NULL
;
510 if (!state
->privileged
) {
511 char *error_string
= NULL
;
512 DEBUG(2, ("winbindd_pam_auth_crap: non-privileged access "
514 DEBUGADD(2, ("winbindd_pam_auth_crap: Ensure permissions "
515 "on %s are set correctly.\n",
516 get_winbind_priv_pipe_dir()));
517 /* send a better message than ACCESS_DENIED */
518 error_string
= talloc_asprintf(state
->mem_ctx
,
519 "winbind client not authorized "
520 "to use winbindd_pam_auth_crap."
521 " Ensure permissions on %s "
522 "are set correctly.",
523 get_winbind_priv_pipe_dir());
524 fstrcpy(state
->response
.data
.auth
.error_string
, error_string
);
525 result
= NT_STATUS_ACCESS_DENIED
;
529 /* Ensure null termination */
530 state
->request
.data
.auth_crap
.user
531 [sizeof(state
->request
.data
.auth_crap
.user
)-1]=0;
532 state
->request
.data
.auth_crap
.domain
533 [sizeof(state
->request
.data
.auth_crap
.domain
)-1]=0;
535 DEBUG(3, ("[%5lu]: pam auth crap domain: [%s] user: %s\n",
536 (unsigned long)state
->pid
,
537 state
->request
.data
.auth_crap
.domain
,
538 state
->request
.data
.auth_crap
.user
));
540 if (*state
->request
.data
.auth_crap
.domain
!= '\0') {
541 domain_name
= state
->request
.data
.auth_crap
.domain
;
542 } else if (lp_winbind_use_default_domain()) {
543 domain_name
= lp_workgroup();
546 if (domain_name
!= NULL
)
547 domain
= find_auth_domain(domain_name
);
549 if (domain
!= NULL
) {
550 sendto_domain(state
, domain
);
554 result
= NT_STATUS_NO_SUCH_USER
;
557 set_auth_errors(&state
->response
, result
);
558 DEBUG(5, ("CRAP authentication for %s returned %s (PAM: %d)\n",
559 state
->request
.data
.auth
.user
,
560 state
->response
.data
.auth
.nt_status_string
,
561 state
->response
.data
.auth
.pam_error
));
562 request_error(state
);
567 enum winbindd_result
winbindd_dual_pam_auth_crap(struct winbindd_domain
*domain
,
568 struct winbindd_cli_state
*state
)
571 const char *srv_name_slash
;
572 NET_USER_INFO_3 info3
;
573 unsigned char *session_key
;
574 struct rpc_pipe_client
*pipe_cli
;
575 DOM_CRED
*credentials
;
576 const char *name_user
= NULL
;
577 const char *name_domain
= NULL
;
578 const char *workstation
;
579 struct winbindd_domain
*contact_domain
;
584 DATA_BLOB lm_resp
, nt_resp
;
586 /* This is child-only, so no check for privileged access is needed
589 /* Ensure null termination */
590 state
->request
.data
.auth_crap
.user
[sizeof(state
->request
.data
.auth_crap
.user
)-1]=0;
591 state
->request
.data
.auth_crap
.domain
[sizeof(state
->request
.data
.auth_crap
.domain
)-1]=0;
593 name_user
= state
->request
.data
.auth_crap
.user
;
595 if (*state
->request
.data
.auth_crap
.domain
) {
596 name_domain
= state
->request
.data
.auth_crap
.domain
;
597 } else if (lp_winbind_use_default_domain()) {
598 name_domain
= lp_workgroup();
600 DEBUG(5,("no domain specified with username (%s) - failing auth\n",
602 result
= NT_STATUS_NO_SUCH_USER
;
606 DEBUG(3, ("[%5lu]: pam auth crap domain: %s user: %s\n", (unsigned long)state
->pid
,
607 name_domain
, name_user
));
609 if (*state
->request
.data
.auth_crap
.workstation
) {
610 workstation
= state
->request
.data
.auth_crap
.workstation
;
612 workstation
= global_myname();
615 if (state
->request
.data
.auth_crap
.lm_resp_len
> sizeof(state
->request
.data
.auth_crap
.lm_resp
)
616 || state
->request
.data
.auth_crap
.nt_resp_len
> sizeof(state
->request
.data
.auth_crap
.nt_resp
)) {
617 DEBUG(0, ("winbindd_pam_auth_crap: invalid password length %u/%u\n",
618 state
->request
.data
.auth_crap
.lm_resp_len
,
619 state
->request
.data
.auth_crap
.nt_resp_len
));
620 result
= NT_STATUS_INVALID_PARAMETER
;
624 lm_resp
= data_blob_talloc(state
->mem_ctx
, state
->request
.data
.auth_crap
.lm_resp
, state
->request
.data
.auth_crap
.lm_resp_len
);
625 nt_resp
= data_blob_talloc(state
->mem_ctx
, state
->request
.data
.auth_crap
.nt_resp
, state
->request
.data
.auth_crap
.nt_resp_len
);
628 /* what domain should we contact? */
631 if (!(contact_domain
= find_domain_from_name(name_domain
))) {
632 DEBUG(3, ("Authentication for domain for [%s] -> [%s]\\[%s] failed as %s is not a trusted domain\n",
633 state
->request
.data
.auth_crap
.user
, name_domain
, name_user
, name_domain
));
634 result
= NT_STATUS_NO_SUCH_USER
;
639 if (is_myname(name_domain
)) {
640 DEBUG(3, ("Authentication for domain %s (local domain to this server) not supported at this stage\n", name_domain
));
641 result
= NT_STATUS_NO_SUCH_USER
;
645 contact_domain
= find_our_domain();
648 srv_name_slash
= talloc_asprintf(state
->mem_ctx
, "\\\\%s",
649 contact_domain
->dcname
);
650 if (srv_name_slash
== NULL
) {
651 DEBUG(0, ("talloc_asprintf failed\n"));
652 return WINBINDD_ERROR
;
658 ZERO_STRUCT(ret_creds
);
661 result
= cm_connect_netlogon(contact_domain
, state
->mem_ctx
,
662 &pipe_cli
, &session_key
,
665 if (!NT_STATUS_IS_OK(result
)) {
666 DEBUG(3, ("could not open handle to NETLOGON pipe (error: %s)\n",
671 credentials
->timestamp
.time
= time(NULL
);
672 memcpy(&clnt_creds
, credentials
, sizeof(clnt_creds
));
674 /* Calculate the new credentials. */
675 cred_create(session_key
, &credentials
->challenge
,
676 clnt_creds
.timestamp
, &(clnt_creds
.challenge
));
678 result
= rpccli_netlogon_sam_network_logon(pipe_cli
,
686 state
->request
.data
.auth_crap
.chal
,
693 /* We have to try a second time as cm_connect_netlogon
694 might not yet have noticed that the DC has killed
697 if (NT_STATUS_EQUAL(result
, NT_STATUS_UNSUCCESSFUL
)) {
702 /* if we get access denied, a possible cause was that we had and open
703 connection to the DC, but someone changed our machine account password
704 out from underneath us using 'net rpc changetrustpw' */
706 if ( NT_STATUS_EQUAL(result
, NT_STATUS_ACCESS_DENIED
) ) {
707 DEBUG(3,("winbindd_pam_auth: sam_logon returned "
708 "ACCESS_DENIED. Maybe the trust account "
709 "password was changed and we didn't know it. "
710 "Killing connections to domain %s\n",
712 invalidate_cm_connection(&contact_domain
->conn
);
716 } while ( (attempts
< 2) && retry
);
718 /* Only check creds if we got a connection. */
719 if (contact_domain
->conn
.cli
&&
720 !(NT_STATUS_EQUAL(result
, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
) ||
721 (NT_STATUS_EQUAL(result
, NT_STATUS_UNSUCCESSFUL
)))) {
722 if (!clnt_deal_with_creds(session_key
, credentials
, &ret_creds
)) {
723 DEBUG(3, ("DC %s sent wrong credentials\n",
724 pipe_cli
->cli
->srv_name_slash
));
725 result
= NT_STATUS_ACCESS_DENIED
;
729 if (NT_STATUS_IS_OK(result
)) {
730 netsamlogon_cache_store( state
->mem_ctx
, name_user
, &info3
);
731 wcache_invalidate_samlogon(find_domain_from_name(name_domain
), &info3
);
733 if (!NT_STATUS_IS_OK(result
= check_info3_in_group(state
->mem_ctx
, &info3
, state
->request
.data
.auth_crap
.require_membership_of_sid
))) {
734 DEBUG(3, ("User %s is not in the required group (%s), so plaintext authentication is rejected\n",
735 state
->request
.data
.auth_crap
.user
,
736 state
->request
.data
.auth_crap
.require_membership_of_sid
));
740 if (state
->request
.flags
& WBFLAG_PAM_INFO3_NDR
) {
741 result
= append_info3_as_ndr(state
->mem_ctx
, state
, &info3
);
742 } else if (state
->request
.flags
& WBFLAG_PAM_UNIX_NAME
) {
743 /* ntlm_auth should return the unix username, per
744 'winbind use default domain' settings and the like */
746 fstring username_out
;
747 const char *nt_username
, *nt_domain
;
748 if (!(nt_username
= unistr2_tdup(state
->mem_ctx
, &(info3
.uni_user_name
)))) {
749 /* If the server didn't give us one, just use the one we sent them */
750 nt_username
= name_user
;
753 if (!(nt_domain
= unistr2_tdup(state
->mem_ctx
, &(info3
.uni_logon_dom
)))) {
754 /* If the server didn't give us one, just use the one we sent them */
755 nt_domain
= name_domain
;
758 fill_domain_username(username_out
, nt_domain
, nt_username
);
760 DEBUG(5, ("Setting unix username to [%s]\n", username_out
));
762 state
->response
.extra_data
= SMB_STRDUP(username_out
);
763 if (!state
->response
.extra_data
) {
764 result
= NT_STATUS_NO_MEMORY
;
767 state
->response
.length
+= strlen(state
->response
.extra_data
)+1;
770 if (state
->request
.flags
& WBFLAG_PAM_USER_SESSION_KEY
) {
771 memcpy(state
->response
.data
.auth
.user_session_key
, info3
.user_sess_key
, sizeof(state
->response
.data
.auth
.user_session_key
) /* 16 */);
773 if (state
->request
.flags
& WBFLAG_PAM_LMKEY
) {
774 memcpy(state
->response
.data
.auth
.first_8_lm_hash
, info3
.lm_sess_key
, sizeof(state
->response
.data
.auth
.first_8_lm_hash
) /* 8 */);
779 /* give us a more useful (more correct?) error code */
780 if ((NT_STATUS_EQUAL(result
, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND
) || (NT_STATUS_EQUAL(result
, NT_STATUS_UNSUCCESSFUL
)))) {
781 result
= NT_STATUS_NO_LOGON_SERVERS
;
784 if (state
->request
.flags
& WBFLAG_PAM_NT_STATUS_SQUASH
) {
785 result
= nt_status_squash(result
);
788 state
->response
.data
.auth
.nt_status
= NT_STATUS_V(result
);
789 fstrcpy(state
->response
.data
.auth
.nt_status_string
, nt_errstr(result
));
791 /* we might have given a more useful error above */
792 if (!*state
->response
.data
.auth
.error_string
)
793 fstrcpy(state
->response
.data
.auth
.error_string
, get_friendly_nt_error_msg(result
));
794 state
->response
.data
.auth
.pam_error
= nt_status_to_pam(result
);
796 DEBUG(NT_STATUS_IS_OK(result
) ? 5 : 2,
797 ("NTLM CRAP authentication for user [%s]\\[%s] returned %s (PAM: %d)\n",
800 state
->response
.data
.auth
.nt_status_string
,
801 state
->response
.data
.auth
.pam_error
));
803 return NT_STATUS_IS_OK(result
) ? WINBINDD_OK
: WINBINDD_ERROR
;
806 /* Change a user password */
808 void winbindd_pam_chauthtok(struct winbindd_cli_state
*state
)
811 char *oldpass
, *newpass
;
812 fstring domain
, user
;
814 struct winbindd_domain
*contact_domain
;
815 struct rpc_pipe_client
*cli
;
817 DEBUG(3, ("[%5lu]: pam chauthtok %s\n", (unsigned long)state
->pid
,
818 state
->request
.data
.chauthtok
.user
));
822 parse_domain_user(state
->request
.data
.chauthtok
.user
, domain
, user
);
824 if (!(contact_domain
= find_domain_from_name(domain
))) {
825 DEBUG(3, ("Cannot change password for [%s] -> [%s]\\[%s] as %s is not a trusted domain\n",
826 state
->request
.data
.chauthtok
.user
, domain
, user
, domain
));
827 result
= NT_STATUS_NO_SUCH_USER
;
831 /* Change password */
833 oldpass
= state
->request
.data
.chauthtok
.oldpass
;
834 newpass
= state
->request
.data
.chauthtok
.newpass
;
838 result
= cm_connect_sam(contact_domain
, state
->mem_ctx
, &cli
,
840 if (!NT_STATUS_IS_OK(result
)) {
841 DEBUG(1, ("could not get SAM handle on DC for %s\n", domain
));
845 result
= rpccli_samr_chgpasswd_user(cli
, state
->mem_ctx
, user
, newpass
,
849 state
->response
.data
.auth
.nt_status
= NT_STATUS_V(result
);
850 fstrcpy(state
->response
.data
.auth
.nt_status_string
, nt_errstr(result
));
851 fstrcpy(state
->response
.data
.auth
.error_string
, nt_errstr(result
));
852 state
->response
.data
.auth
.pam_error
= nt_status_to_pam(result
);
854 DEBUG(NT_STATUS_IS_OK(result
) ? 5 : 2,
855 ("Password change for user [%s]\\[%s] returned %s (PAM: %d)\n",
858 state
->response
.data
.auth
.nt_status_string
,
859 state
->response
.data
.auth
.pam_error
));
861 if (NT_STATUS_IS_OK(result
))
864 request_error(state
);