2 Unix SMB/CIFS implementation.
3 Authentication utility functions
4 Copyright (C) Andrew Tridgell 1992-1998
5 Copyright (C) Andrew Bartlett 2001-2011
6 Copyright (C) Jeremy Allison 2000-2001
7 Copyright (C) Rafal Szczesniak 2002
8 Copyright (C) Volker Lendecke 2006-2008
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 3 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, see <http://www.gnu.org/licenses/>.
26 #include "../libcli/auth/libcli_auth.h"
27 #include "../lib/crypto/arcfour.h"
28 #include "rpc_client/init_lsa.h"
29 #include "../libcli/security/security.h"
30 #include "../lib/util/util_pw.h"
31 #include "lib/winbind_util.h"
33 #include "../librpc/gen_ndr/ndr_auth.h"
34 #include "../auth/auth_sam_reply.h"
35 #include "../librpc/gen_ndr/idmap.h"
38 #define DBGC_CLASS DBGC_AUTH
40 /****************************************************************************
41 Create a UNIX user on demand.
42 ****************************************************************************/
44 static int _smb_create_user(const char *domain
, const char *unix_username
, const char *homedir
)
46 TALLOC_CTX
*ctx
= talloc_tos();
50 add_script
= talloc_strdup(ctx
, lp_adduser_script());
51 if (!add_script
|| !*add_script
) {
54 add_script
= talloc_all_string_sub(ctx
,
62 add_script
= talloc_all_string_sub(ctx
,
71 add_script
= talloc_all_string_sub(ctx
,
79 ret
= smbrun(add_script
,NULL
);
82 ("smb_create_user: Running the command `%s' gave %d\n",
87 /****************************************************************************
88 Create an auth_usersupplied_data structure after appropriate mapping.
89 ****************************************************************************/
91 NTSTATUS
make_user_info_map(struct auth_usersupplied_info
**user_info
,
93 const char *client_domain
,
94 const char *workstation_name
,
95 const struct tsocket_address
*remote_address
,
96 const DATA_BLOB
*lm_pwd
,
97 const DATA_BLOB
*nt_pwd
,
98 const struct samr_Password
*lm_interactive_pwd
,
99 const struct samr_Password
*nt_interactive_pwd
,
100 const char *plaintext
,
101 enum auth_password_state password_state
)
106 char *internal_username
= NULL
;
108 was_mapped
= map_username(talloc_tos(), smb_name
, &internal_username
);
109 if (!internal_username
) {
110 return NT_STATUS_NO_MEMORY
;
113 DEBUG(5, ("Mapping user [%s]\\[%s] from workstation [%s]\n",
114 client_domain
, smb_name
, workstation_name
));
116 domain
= client_domain
;
118 /* If you connect to a Windows domain member using a bogus domain name,
119 * the Windows box will map the BOGUS\user to SAMNAME\user. Thus, if
120 * the Windows box is a DC the name will become DOMAIN\user and be
121 * authenticated against AD, if the Windows box is a member server but
122 * not a DC the name will become WORKSTATION\user. A standalone
123 * non-domain member box will also map to WORKSTATION\user.
124 * This also deals with the client passing in a "" domain */
126 if (!is_trusted_domain(domain
) &&
127 !strequal(domain
, my_sam_name()))
129 if (lp_map_untrusted_to_domain())
130 domain
= my_sam_name();
132 domain
= get_global_sam_name();
133 DEBUG(5, ("Mapped domain from [%s] to [%s] for user [%s] from "
134 "workstation [%s]\n",
135 client_domain
, domain
, smb_name
, workstation_name
));
138 /* We know that the given domain is trusted (and we are allowing them),
139 * it is our global SAM name, or for legacy behavior it is our
140 * primary domain name */
142 result
= make_user_info(user_info
, smb_name
, internal_username
,
143 client_domain
, domain
, workstation_name
,
144 remote_address
, lm_pwd
, nt_pwd
,
145 lm_interactive_pwd
, nt_interactive_pwd
,
146 plaintext
, password_state
);
147 if (NT_STATUS_IS_OK(result
)) {
148 /* We have tried mapping */
149 (*user_info
)->mapped_state
= true;
150 /* did we actually map the user to a different name? */
151 (*user_info
)->was_mapped
= was_mapped
;
156 /****************************************************************************
157 Create an auth_usersupplied_data, making the DATA_BLOBs here.
158 Decrypt and encrypt the passwords.
159 ****************************************************************************/
161 bool make_user_info_netlogon_network(struct auth_usersupplied_info
**user_info
,
162 const char *smb_name
,
163 const char *client_domain
,
164 const char *workstation_name
,
165 const struct tsocket_address
*remote_address
,
166 uint32 logon_parameters
,
167 const uchar
*lm_network_pwd
,
169 const uchar
*nt_network_pwd
,
174 DATA_BLOB lm_blob
= data_blob(lm_network_pwd
, lm_pwd_len
);
175 DATA_BLOB nt_blob
= data_blob(nt_network_pwd
, nt_pwd_len
);
177 status
= make_user_info_map(user_info
,
178 smb_name
, client_domain
,
181 lm_pwd_len
? &lm_blob
: NULL
,
182 nt_pwd_len
? &nt_blob
: NULL
,
184 AUTH_PASSWORD_RESPONSE
);
186 if (NT_STATUS_IS_OK(status
)) {
187 (*user_info
)->logon_parameters
= logon_parameters
;
189 ret
= NT_STATUS_IS_OK(status
) ? true : false;
191 data_blob_free(&lm_blob
);
192 data_blob_free(&nt_blob
);
196 /****************************************************************************
197 Create an auth_usersupplied_data, making the DATA_BLOBs here.
198 Decrypt and encrypt the passwords.
199 ****************************************************************************/
201 bool make_user_info_netlogon_interactive(struct auth_usersupplied_info
**user_info
,
202 const char *smb_name
,
203 const char *client_domain
,
204 const char *workstation_name
,
205 const struct tsocket_address
*remote_address
,
206 uint32 logon_parameters
,
208 const uchar lm_interactive_pwd
[16],
209 const uchar nt_interactive_pwd
[16],
210 const uchar
*dc_sess_key
)
212 struct samr_Password lm_pwd
;
213 struct samr_Password nt_pwd
;
214 unsigned char local_lm_response
[24];
215 unsigned char local_nt_response
[24];
216 unsigned char key
[16];
218 memcpy(key
, dc_sess_key
, 16);
220 if (lm_interactive_pwd
)
221 memcpy(lm_pwd
.hash
, lm_interactive_pwd
, sizeof(lm_pwd
.hash
));
223 if (nt_interactive_pwd
)
224 memcpy(nt_pwd
.hash
, nt_interactive_pwd
, sizeof(nt_pwd
.hash
));
226 #ifdef DEBUG_PASSWORD
228 dump_data(100, key
, sizeof(key
));
230 DEBUG(100,("lm owf password:"));
231 dump_data(100, lm_pwd
.hash
, sizeof(lm_pwd
.hash
));
233 DEBUG(100,("nt owf password:"));
234 dump_data(100, nt_pwd
.hash
, sizeof(nt_pwd
.hash
));
237 if (lm_interactive_pwd
)
238 arcfour_crypt(lm_pwd
.hash
, key
, sizeof(lm_pwd
.hash
));
240 if (nt_interactive_pwd
)
241 arcfour_crypt(nt_pwd
.hash
, key
, sizeof(nt_pwd
.hash
));
243 #ifdef DEBUG_PASSWORD
244 DEBUG(100,("decrypt of lm owf password:"));
245 dump_data(100, lm_pwd
.hash
, sizeof(lm_pwd
));
247 DEBUG(100,("decrypt of nt owf password:"));
248 dump_data(100, nt_pwd
.hash
, sizeof(nt_pwd
));
251 if (lm_interactive_pwd
)
252 SMBOWFencrypt(lm_pwd
.hash
, chal
,
255 if (nt_interactive_pwd
)
256 SMBOWFencrypt(nt_pwd
.hash
, chal
,
259 /* Password info paranoia */
265 DATA_BLOB local_lm_blob
;
266 DATA_BLOB local_nt_blob
;
268 if (lm_interactive_pwd
) {
269 local_lm_blob
= data_blob(local_lm_response
,
270 sizeof(local_lm_response
));
273 if (nt_interactive_pwd
) {
274 local_nt_blob
= data_blob(local_nt_response
,
275 sizeof(local_nt_response
));
278 nt_status
= make_user_info_map(
280 smb_name
, client_domain
, workstation_name
,
282 lm_interactive_pwd
? &local_lm_blob
: NULL
,
283 nt_interactive_pwd
? &local_nt_blob
: NULL
,
284 lm_interactive_pwd
? &lm_pwd
: NULL
,
285 nt_interactive_pwd
? &nt_pwd
: NULL
,
286 NULL
, AUTH_PASSWORD_HASH
);
288 if (NT_STATUS_IS_OK(nt_status
)) {
289 (*user_info
)->logon_parameters
= logon_parameters
;
292 ret
= NT_STATUS_IS_OK(nt_status
) ? true : false;
293 data_blob_free(&local_lm_blob
);
294 data_blob_free(&local_nt_blob
);
300 /****************************************************************************
301 Create an auth_usersupplied_data structure
302 ****************************************************************************/
304 bool make_user_info_for_reply(struct auth_usersupplied_info
**user_info
,
305 const char *smb_name
,
306 const char *client_domain
,
307 const struct tsocket_address
*remote_address
,
309 DATA_BLOB plaintext_password
)
312 DATA_BLOB local_lm_blob
;
313 DATA_BLOB local_nt_blob
;
314 NTSTATUS ret
= NT_STATUS_UNSUCCESSFUL
;
315 char *plaintext_password_string
;
317 * Not encrypted - do so.
320 DEBUG(5,("make_user_info_for_reply: User passwords not in encrypted "
322 if (plaintext_password
.data
&& plaintext_password
.length
) {
323 unsigned char local_lm_response
[24];
325 #ifdef DEBUG_PASSWORD
326 DEBUG(10,("Unencrypted password (len %d):\n",
327 (int)plaintext_password
.length
));
328 dump_data(100, plaintext_password
.data
,
329 plaintext_password
.length
);
332 SMBencrypt( (const char *)plaintext_password
.data
,
333 (const uchar
*)chal
, local_lm_response
);
334 local_lm_blob
= data_blob(local_lm_response
, 24);
336 /* We can't do an NT hash here, as the password needs to be
338 local_nt_blob
= data_blob_null
;
340 local_lm_blob
= data_blob_null
;
341 local_nt_blob
= data_blob_null
;
344 plaintext_password_string
= talloc_strndup(talloc_tos(),
345 (const char *)plaintext_password
.data
,
346 plaintext_password
.length
);
347 if (!plaintext_password_string
) {
351 ret
= make_user_info(
352 user_info
, smb_name
, smb_name
, client_domain
, client_domain
,
353 get_remote_machine_name(),
355 local_lm_blob
.data
? &local_lm_blob
: NULL
,
356 local_nt_blob
.data
? &local_nt_blob
: NULL
,
358 plaintext_password_string
,
359 AUTH_PASSWORD_PLAIN
);
361 if (plaintext_password_string
) {
362 memset(plaintext_password_string
, '\0', strlen(plaintext_password_string
));
363 talloc_free(plaintext_password_string
);
366 data_blob_free(&local_lm_blob
);
367 return NT_STATUS_IS_OK(ret
) ? true : false;
370 /****************************************************************************
371 Create an auth_usersupplied_data structure
372 ****************************************************************************/
374 NTSTATUS
make_user_info_for_reply_enc(struct auth_usersupplied_info
**user_info
,
375 const char *smb_name
,
376 const char *client_domain
,
377 const struct tsocket_address
*remote_address
,
378 DATA_BLOB lm_resp
, DATA_BLOB nt_resp
)
380 return make_user_info(user_info
, smb_name
, smb_name
,
381 client_domain
, client_domain
,
382 get_remote_machine_name(),
384 lm_resp
.data
&& (lm_resp
.length
> 0) ? &lm_resp
: NULL
,
385 nt_resp
.data
&& (nt_resp
.length
> 0) ? &nt_resp
: NULL
,
387 AUTH_PASSWORD_RESPONSE
);
390 /****************************************************************************
391 Create a guest user_info blob, for anonymous authentication.
392 ****************************************************************************/
394 bool make_user_info_guest(const struct tsocket_address
*remote_address
,
395 struct auth_usersupplied_info
**user_info
)
399 nt_status
= make_user_info(user_info
,
407 AUTH_PASSWORD_RESPONSE
);
409 return NT_STATUS_IS_OK(nt_status
) ? true : false;
412 static NTSTATUS
log_nt_token(struct security_token
*token
)
414 TALLOC_CTX
*frame
= talloc_stackframe();
419 if ((lp_log_nt_token_command() == NULL
) ||
420 (strlen(lp_log_nt_token_command()) == 0)) {
425 group_sidstr
= talloc_strdup(frame
, "");
426 for (i
=1; i
<token
->num_sids
; i
++) {
427 group_sidstr
= talloc_asprintf(
428 frame
, "%s %s", group_sidstr
,
429 sid_string_talloc(frame
, &token
->sids
[i
]));
432 command
= talloc_string_sub(
433 frame
, lp_log_nt_token_command(),
434 "%s", sid_string_talloc(frame
, &token
->sids
[0]));
435 command
= talloc_string_sub(frame
, command
, "%t", group_sidstr
);
437 if (command
== NULL
) {
439 return NT_STATUS_NO_MEMORY
;
442 DEBUG(8, ("running command: [%s]\n", command
));
443 if (smbrun(command
, NULL
) != 0) {
444 DEBUG(0, ("Could not log NT token\n"));
446 return NT_STATUS_ACCESS_DENIED
;
454 * Create the token to use from server_info->info3 and
455 * server_info->sids (the info3/sam groups). Find the unix gids.
458 NTSTATUS
create_local_token(TALLOC_CTX
*mem_ctx
,
459 const struct auth_serversupplied_info
*server_info
,
460 DATA_BLOB
*session_key
,
461 const char *smb_username
, /* for ->sanitized_username, for %U subs */
462 struct auth_session_info
**session_info_out
)
464 struct security_token
*t
;
467 struct dom_sid tmp_sid
;
468 struct auth_session_info
*session_info
;
472 /* Ensure we can't possible take a code path leading to a
475 return NT_STATUS_LOGON_FAILURE
;
478 session_info
= talloc_zero(mem_ctx
, struct auth_session_info
);
480 return NT_STATUS_NO_MEMORY
;
483 session_info
->unix_token
= talloc_zero(session_info
, struct security_unix_token
);
484 if (!session_info
->unix_token
) {
485 TALLOC_FREE(session_info
);
486 return NT_STATUS_NO_MEMORY
;
489 session_info
->unix_token
->uid
= server_info
->utok
.uid
;
490 session_info
->unix_token
->gid
= server_info
->utok
.gid
;
492 session_info
->unix_info
= talloc_zero(session_info
, struct auth_user_info_unix
);
493 if (!session_info
->unix_info
) {
494 TALLOC_FREE(session_info
);
495 return NT_STATUS_NO_MEMORY
;
498 session_info
->unix_info
->unix_name
= talloc_strdup(session_info
, server_info
->unix_name
);
499 if (!session_info
->unix_info
->unix_name
) {
500 TALLOC_FREE(session_info
);
501 return NT_STATUS_NO_MEMORY
;
504 /* This is a potentially untrusted username for use in %U */
505 alpha_strcpy(tmp
, smb_username
, ". _-$", sizeof(tmp
));
506 session_info
->unix_info
->sanitized_username
=
507 talloc_strdup(session_info
->unix_info
, tmp
);
510 data_blob_free(&session_info
->session_key
);
511 session_info
->session_key
= data_blob_talloc(session_info
,
513 session_key
->length
);
514 if (!session_info
->session_key
.data
&& session_key
->length
) {
515 return NT_STATUS_NO_MEMORY
;
518 session_info
->session_key
= data_blob_talloc( session_info
, server_info
->session_key
.data
,
519 server_info
->session_key
.length
);
522 /* We need to populate session_info->info with the information found in server_info->info3 */
523 status
= make_user_info_SamBaseInfo(session_info
, "", &server_info
->info3
->base
,
524 server_info
->guest
== false,
525 &session_info
->info
);
526 if (!NT_STATUS_IS_OK(status
)) {
527 DEBUG(0, ("conversion of info3 into auth_user_info failed!\n"));
528 TALLOC_FREE(session_info
);
532 if (server_info
->security_token
) {
533 /* Just copy the token, it has already been finalised
534 * (nasty hack to support a cached guest/system session_info
537 session_info
->security_token
= dup_nt_token(session_info
, server_info
->security_token
);
538 if (!session_info
->security_token
) {
539 TALLOC_FREE(session_info
);
540 return NT_STATUS_NO_MEMORY
;
543 session_info
->unix_token
->ngroups
= server_info
->utok
.ngroups
;
544 if (server_info
->utok
.ngroups
!= 0) {
545 session_info
->unix_token
->groups
= (gid_t
*)talloc_memdup(
546 session_info
->unix_token
, server_info
->utok
.groups
,
547 sizeof(gid_t
)*session_info
->unix_token
->ngroups
);
549 session_info
->unix_token
->groups
= NULL
;
552 *session_info_out
= session_info
;
557 * If winbind is not around, we can not make much use of the SIDs the
558 * domain controller provided us with. Likewise if the user name was
559 * mapped to some local unix user.
562 if (((lp_server_role() == ROLE_DOMAIN_MEMBER
) && !winbind_ping()) ||
563 (server_info
->nss_token
)) {
564 char *found_username
= NULL
;
565 status
= create_token_from_username(session_info
,
566 server_info
->unix_name
,
568 &session_info
->unix_token
->uid
,
569 &session_info
->unix_token
->gid
,
571 &session_info
->security_token
);
572 if (NT_STATUS_IS_OK(status
)) {
573 session_info
->unix_info
->unix_name
= found_username
;
576 status
= create_local_nt_token_from_info3(session_info
,
580 &session_info
->security_token
);
583 if (!NT_STATUS_IS_OK(status
)) {
587 /* Convert the SIDs to gids. */
589 session_info
->unix_token
->ngroups
= 0;
590 session_info
->unix_token
->groups
= NULL
;
592 t
= session_info
->security_token
;
594 ids
= talloc_array(talloc_tos(), struct unixid
,
597 return NT_STATUS_NO_MEMORY
;
600 if (!sids_to_unixids(t
->sids
, t
->num_sids
, ids
)) {
602 return NT_STATUS_NO_MEMORY
;
605 for (i
=0; i
<t
->num_sids
; i
++) {
607 if (i
== 0 && ids
[i
].type
!= ID_TYPE_BOTH
) {
611 if (ids
[i
].type
!= ID_TYPE_GID
&&
612 ids
[i
].type
!= ID_TYPE_BOTH
) {
613 DEBUG(10, ("Could not convert SID %s to gid, "
615 sid_string_dbg(&t
->sids
[i
])));
618 if (!add_gid_to_array_unique(session_info
, ids
[i
].id
,
619 &session_info
->unix_token
->groups
,
620 &session_info
->unix_token
->ngroups
)) {
621 return NT_STATUS_NO_MEMORY
;
626 * Add the "Unix Group" SID for each gid to catch mapped groups
627 * and their Unix equivalent. This is to solve the backwards
628 * compatibility problem of 'valid users = +ntadmin' where
629 * ntadmin has been paired with "Domain Admins" in the group
630 * mapping table. Otherwise smb.conf would need to be changed
631 * to 'valid user = "Domain Admins"'. --jerry
633 * For consistency we also add the "Unix User" SID,
634 * so that the complete unix token is represented within
638 uid_to_unix_users_sid(session_info
->unix_token
->uid
, &tmp_sid
);
640 add_sid_to_array_unique(session_info
->security_token
, &tmp_sid
,
641 &session_info
->security_token
->sids
,
642 &session_info
->security_token
->num_sids
);
644 for ( i
=0; i
<session_info
->unix_token
->ngroups
; i
++ ) {
645 gid_to_unix_groups_sid(session_info
->unix_token
->groups
[i
], &tmp_sid
);
646 add_sid_to_array_unique(session_info
->security_token
, &tmp_sid
,
647 &session_info
->security_token
->sids
,
648 &session_info
->security_token
->num_sids
);
651 security_token_debug(DBGC_AUTH
, 10, session_info
->security_token
);
652 debug_unix_user_token(DBGC_AUTH
, 10,
653 session_info
->unix_token
->uid
,
654 session_info
->unix_token
->gid
,
655 session_info
->unix_token
->ngroups
,
656 session_info
->unix_token
->groups
);
658 status
= log_nt_token(session_info
->security_token
);
659 if (!NT_STATUS_IS_OK(status
)) {
663 *session_info_out
= session_info
;
667 /***************************************************************************
668 Make (and fill) a server_info struct from a 'struct passwd' by conversion
670 ***************************************************************************/
672 NTSTATUS
make_server_info_pw(struct auth_serversupplied_info
**server_info
,
677 struct samu
*sampass
= NULL
;
678 char *qualified_name
= NULL
;
679 TALLOC_CTX
*mem_ctx
= NULL
;
680 struct dom_sid u_sid
;
681 enum lsa_SidType type
;
682 struct auth_serversupplied_info
*result
;
685 * The SID returned in server_info->sam_account is based
686 * on our SAM sid even though for a pure UNIX account this should
687 * not be the case as it doesn't really exist in the SAM db.
688 * This causes lookups on "[in]valid users" to fail as they
689 * will lookup this name as a "Unix User" SID to check against
690 * the user token. Fix this by adding the "Unix User"\unix_username
691 * SID to the sid array. The correct fix should probably be
692 * changing the server_info->sam_account user SID to be a
693 * S-1-22 Unix SID, but this might break old configs where
694 * plaintext passwords were used with no SAM backend.
697 mem_ctx
= talloc_init("make_server_info_pw_tmp");
699 return NT_STATUS_NO_MEMORY
;
702 qualified_name
= talloc_asprintf(mem_ctx
, "%s\\%s",
703 unix_users_domain_name(),
705 if (!qualified_name
) {
706 TALLOC_FREE(mem_ctx
);
707 return NT_STATUS_NO_MEMORY
;
710 if (!lookup_name(mem_ctx
, qualified_name
, LOOKUP_NAME_ALL
,
713 TALLOC_FREE(mem_ctx
);
714 return NT_STATUS_NO_SUCH_USER
;
717 TALLOC_FREE(mem_ctx
);
719 if (type
!= SID_NAME_USER
) {
720 return NT_STATUS_NO_SUCH_USER
;
723 if ( !(sampass
= samu_new( NULL
)) ) {
724 return NT_STATUS_NO_MEMORY
;
727 status
= samu_set_unix( sampass
, pwd
);
728 if (!NT_STATUS_IS_OK(status
)) {
732 /* In pathological cases the above call can set the account
733 * name to the DOMAIN\username form. Reset the account name
734 * using unix_username */
735 pdb_set_username(sampass
, unix_username
, PDB_SET
);
737 /* set the user sid to be the calculated u_sid */
738 pdb_set_user_sid(sampass
, &u_sid
, PDB_SET
);
740 result
= make_server_info(NULL
);
741 if (result
== NULL
) {
742 TALLOC_FREE(sampass
);
743 return NT_STATUS_NO_MEMORY
;
746 status
= samu_to_SamInfo3(result
, sampass
, lp_netbios_name(),
747 &result
->info3
, &result
->extra
);
748 TALLOC_FREE(sampass
);
749 if (!NT_STATUS_IS_OK(status
)) {
750 DEBUG(10, ("Failed to convert samu to info3: %s\n",
756 result
->unix_name
= talloc_strdup(result
, unix_username
);
758 if (result
->unix_name
== NULL
) {
760 return NT_STATUS_NO_MEMORY
;
763 result
->utok
.uid
= pwd
->pw_uid
;
764 result
->utok
.gid
= pwd
->pw_gid
;
766 *server_info
= result
;
771 static NTSTATUS
get_system_info3(TALLOC_CTX
*mem_ctx
,
772 struct netr_SamInfo3
*info3
)
775 struct dom_sid
*system_sid
;
777 /* Set account name */
778 init_lsa_String(&info3
->base
.account_name
, "SYSTEM");
780 /* Set domain name */
781 init_lsa_StringLarge(&info3
->base
.logon_domain
, "NT AUTHORITY");
784 /* The SID set here will be overwirtten anyway, but try and make it SID_NT_SYSTEM anyway */
785 /* Domain sid is NT_AUTHORITY */
787 system_sid
= dom_sid_parse_talloc(mem_ctx
, SID_NT_SYSTEM
);
788 if (system_sid
== NULL
) {
789 return NT_STATUS_NO_MEMORY
;
792 status
= dom_sid_split_rid(mem_ctx
, system_sid
, &info3
->base
.domain_sid
,
794 TALLOC_FREE(system_sid
);
795 if (!NT_STATUS_IS_OK(status
)) {
799 /* Primary gid is the same */
800 info3
->base
.primary_gid
= info3
->base
.rid
;
805 static NTSTATUS
get_guest_info3(TALLOC_CTX
*mem_ctx
,
806 struct netr_SamInfo3
*info3
)
808 const char *guest_account
= lp_guestaccount();
809 struct dom_sid domain_sid
;
813 pwd
= Get_Pwnam_alloc(mem_ctx
, guest_account
);
815 DEBUG(0,("SamInfo3_for_guest: Unable to locate guest "
816 "account [%s]!\n", guest_account
));
817 return NT_STATUS_NO_SUCH_USER
;
820 /* Set account name */
821 tmp
= talloc_strdup(mem_ctx
, pwd
->pw_name
);
823 return NT_STATUS_NO_MEMORY
;
825 init_lsa_String(&info3
->base
.account_name
, tmp
);
827 /* Set domain name */
828 tmp
= talloc_strdup(mem_ctx
, get_global_sam_name());
830 return NT_STATUS_NO_MEMORY
;
832 init_lsa_StringLarge(&info3
->base
.logon_domain
, tmp
);
835 sid_copy(&domain_sid
, get_global_sam_sid());
837 info3
->base
.domain_sid
= dom_sid_dup(mem_ctx
, &domain_sid
);
838 if (info3
->base
.domain_sid
== NULL
) {
839 return NT_STATUS_NO_MEMORY
;
843 info3
->base
.rid
= DOMAIN_RID_GUEST
;
846 info3
->base
.primary_gid
= BUILTIN_RID_GUESTS
;
849 info3
->base
.user_flags
= NETLOGON_GUEST
;
855 /***************************************************************************
856 Make (and fill) a user_info struct for a guest login.
857 This *must* succeed for smbd to start. If there is no mapping entry for
858 the guest gid, then create one.
860 The resulting structure is a 'session_info' because
861 create_local_token() has already been called on it. This is quite
862 nasty, as the auth subsystem isn't expect this, but the behavior is
864 ***************************************************************************/
866 static NTSTATUS
make_new_session_info_guest(struct auth_session_info
**session_info
, struct auth_serversupplied_info
**server_info
)
868 static const char zeros
[16] = {0};
869 const char *guest_account
= lp_guestaccount();
870 const char *domain
= lp_netbios_name();
871 struct netr_SamInfo3 info3
;
875 tmp_ctx
= talloc_stackframe();
876 if (tmp_ctx
== NULL
) {
877 return NT_STATUS_NO_MEMORY
;
882 status
= get_guest_info3(tmp_ctx
, &info3
);
883 if (!NT_STATUS_IS_OK(status
)) {
884 DEBUG(0, ("get_guest_info3 failed with %s\n",
889 status
= make_server_info_info3(tmp_ctx
,
894 if (!NT_STATUS_IS_OK(status
)) {
895 DEBUG(0, ("make_server_info_info3 failed with %s\n",
900 (*server_info
)->guest
= true;
902 /* This should not be done here (we should produce a server
903 * info, and later construct a session info from it), but for
904 * now this does not change the previous behavior */
905 status
= create_local_token(tmp_ctx
, *server_info
, NULL
,
906 (*server_info
)->info3
->base
.account_name
.string
,
908 if (!NT_STATUS_IS_OK(status
)) {
909 DEBUG(0, ("create_local_token failed: %s\n",
913 talloc_steal(NULL
, *session_info
);
914 talloc_steal(NULL
, *server_info
);
916 /* annoying, but the Guest really does have a session key, and it is
918 (*session_info
)->session_key
= data_blob(zeros
, sizeof(zeros
));
920 status
= NT_STATUS_OK
;
922 TALLOC_FREE(tmp_ctx
);
926 /***************************************************************************
927 Make (and fill) a auth_session_info struct for a system user login.
928 This *must* succeed for smbd to start.
929 ***************************************************************************/
931 static NTSTATUS
make_new_session_info_system(TALLOC_CTX
*mem_ctx
,
932 struct auth_session_info
**session_info
)
935 struct auth_serversupplied_info
*server_info
;
938 tmp_ctx
= talloc_stackframe();
939 if (tmp_ctx
== NULL
) {
940 return NT_STATUS_NO_MEMORY
;
943 server_info
= make_server_info(tmp_ctx
);
945 status
= NT_STATUS_NO_MEMORY
;
946 DEBUG(0, ("failed making server_info\n"));
950 server_info
->info3
= talloc_zero(server_info
, struct netr_SamInfo3
);
951 if (!server_info
->info3
) {
952 status
= NT_STATUS_NO_MEMORY
;
953 DEBUG(0, ("talloc failed setting info3\n"));
957 status
= get_system_info3(server_info
, server_info
->info3
);
958 if (!NT_STATUS_IS_OK(status
)) {
959 DEBUG(0, ("Failed creating system info3 with %s\n",
964 server_info
->utok
.uid
= sec_initial_uid();
965 server_info
->utok
.gid
= sec_initial_gid();
966 server_info
->unix_name
= talloc_asprintf(server_info
,
967 "NT AUTHORITY%cSYSTEM",
968 *lp_winbind_separator());
970 if (!server_info
->unix_name
) {
971 status
= NT_STATUS_NO_MEMORY
;
972 DEBUG(0, ("talloc_asprintf failed setting unix_name\n"));
976 server_info
->security_token
= talloc_zero(server_info
, struct security_token
);
977 if (!server_info
->security_token
) {
978 status
= NT_STATUS_NO_MEMORY
;
979 DEBUG(0, ("talloc failed setting security token\n"));
983 status
= add_sid_to_array_unique(server_info
->security_token
->sids
,
985 &server_info
->security_token
->sids
,
986 &server_info
->security_token
->num_sids
);
987 if (!NT_STATUS_IS_OK(status
)) {
991 /* SYSTEM has all privilages */
992 server_info
->security_token
->privilege_mask
= ~0;
994 /* Now turn the server_info into a session_info with the full token etc */
995 status
= create_local_token(mem_ctx
, server_info
, NULL
, "SYSTEM", session_info
);
996 talloc_free(server_info
);
998 if (!NT_STATUS_IS_OK(status
)) {
999 DEBUG(0, ("create_local_token failed: %s\n",
1000 nt_errstr(status
)));
1004 talloc_steal(mem_ctx
, *session_info
);
1007 TALLOC_FREE(tmp_ctx
);
1011 /****************************************************************************
1012 Fake a auth_session_info just from a username (as a
1013 session_info structure, with create_local_token() already called on
1015 ****************************************************************************/
1017 NTSTATUS
make_session_info_from_username(TALLOC_CTX
*mem_ctx
,
1018 const char *username
,
1020 struct auth_session_info
**session_info
)
1024 struct auth_serversupplied_info
*result
;
1026 pwd
= Get_Pwnam_alloc(talloc_tos(), username
);
1028 return NT_STATUS_NO_SUCH_USER
;
1031 status
= make_server_info_pw(&result
, pwd
->pw_name
, pwd
);
1033 if (!NT_STATUS_IS_OK(status
)) {
1037 result
->nss_token
= true;
1038 result
->guest
= is_guest
;
1040 /* Now turn the server_info into a session_info with the full token etc */
1041 status
= create_local_token(mem_ctx
, result
, NULL
, pwd
->pw_name
, session_info
);
1042 TALLOC_FREE(result
);
1048 /* This function MUST only used to create the cached server_info for
1051 * This is a lossy conversion. Variables known to be lost so far
1054 * - nss_token (not needed because the only read doesn't happen
1055 * for the GUEST user, as this routine populates ->security_token
1057 * - extra (not needed because the guest account must have valid RIDs per the output of get_guest_info3())
1059 * - The 'server_info' parameter allows the missing 'info3' to be copied across.
1061 static struct auth_serversupplied_info
*copy_session_info_serverinfo_guest(TALLOC_CTX
*mem_ctx
,
1062 const struct auth_session_info
*src
,
1063 struct auth_serversupplied_info
*server_info
)
1065 struct auth_serversupplied_info
*dst
;
1067 dst
= make_server_info(mem_ctx
);
1072 /* This element must be provided to convert back to an auth_serversupplied_info */
1073 SMB_ASSERT(src
->unix_info
);
1076 dst
->system
= false;
1078 /* This element must be provided to convert back to an
1079 * auth_serversupplied_info. This needs to be from the
1080 * auth_session_info because the group values in particular
1081 * may change during create_local_token() processing */
1082 SMB_ASSERT(src
->unix_token
);
1083 dst
->utok
.uid
= src
->unix_token
->uid
;
1084 dst
->utok
.gid
= src
->unix_token
->gid
;
1085 dst
->utok
.ngroups
= src
->unix_token
->ngroups
;
1086 if (src
->unix_token
->ngroups
!= 0) {
1087 dst
->utok
.groups
= (gid_t
*)talloc_memdup(
1088 dst
, src
->unix_token
->groups
,
1089 sizeof(gid_t
)*dst
->utok
.ngroups
);
1091 dst
->utok
.groups
= NULL
;
1094 /* We must have a security_token as otherwise the lossy
1095 * conversion without nss_token would cause create_local_token
1096 * to take the wrong path */
1097 SMB_ASSERT(src
->security_token
);
1099 dst
->security_token
= dup_nt_token(dst
, src
->security_token
);
1100 if (!dst
->security_token
) {
1105 dst
->session_key
= data_blob_talloc( dst
, src
->session_key
.data
,
1106 src
->session_key
.length
);
1108 /* This is OK because this functions is only used for the
1109 * GUEST account, which has all-zero keys for both values */
1110 dst
->lm_session_key
= data_blob_talloc(dst
, src
->session_key
.data
,
1111 src
->session_key
.length
);
1113 dst
->info3
= copy_netr_SamInfo3(dst
, server_info
->info3
);
1119 dst
->unix_name
= talloc_strdup(dst
, src
->unix_info
->unix_name
);
1120 if (!dst
->unix_name
) {
1128 struct auth_session_info
*copy_session_info(TALLOC_CTX
*mem_ctx
,
1129 const struct auth_session_info
*src
)
1131 struct auth_session_info
*dst
;
1133 enum ndr_err_code ndr_err
;
1135 ndr_err
= ndr_push_struct_blob(
1136 &blob
, talloc_tos(), src
,
1137 (ndr_push_flags_fn_t
)ndr_push_auth_session_info
);
1138 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err
)) {
1139 DEBUG(0, ("copy_session_info(): ndr_push_auth_session_info failed: "
1140 "%s\n", ndr_errstr(ndr_err
)));
1144 dst
= talloc(mem_ctx
, struct auth_session_info
);
1146 DEBUG(0, ("talloc failed\n"));
1147 TALLOC_FREE(blob
.data
);
1151 ndr_err
= ndr_pull_struct_blob(
1153 (ndr_pull_flags_fn_t
)ndr_pull_auth_session_info
);
1154 TALLOC_FREE(blob
.data
);
1156 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err
)) {
1157 DEBUG(0, ("copy_session_info(): ndr_pull_auth_session_info failed: "
1158 "%s\n", ndr_errstr(ndr_err
)));
1167 * Set a new session key. Used in the rpc server where we have to override the
1168 * SMB level session key with SystemLibraryDTC
1171 bool session_info_set_session_key(struct auth_session_info
*info
,
1172 DATA_BLOB session_key
)
1174 TALLOC_FREE(info
->session_key
.data
);
1176 info
->session_key
= data_blob_talloc(
1177 info
, session_key
.data
, session_key
.length
);
1179 return (info
->session_key
.data
!= NULL
);
1182 static struct auth_session_info
*guest_info
= NULL
;
1184 static struct auth_serversupplied_info
*guest_server_info
= NULL
;
1186 bool init_guest_info(void)
1188 if (guest_info
!= NULL
)
1191 return NT_STATUS_IS_OK(make_new_session_info_guest(&guest_info
, &guest_server_info
));
1194 NTSTATUS
make_server_info_guest(TALLOC_CTX
*mem_ctx
,
1195 struct auth_serversupplied_info
**server_info
)
1197 /* This is trickier than it would appear to need to be because
1198 * we are trying to avoid certain costly operations when the
1199 * structure is converted to a 'auth_session_info' again in
1200 * create_local_token() */
1201 *server_info
= copy_session_info_serverinfo_guest(mem_ctx
, guest_info
, guest_server_info
);
1202 return (*server_info
!= NULL
) ? NT_STATUS_OK
: NT_STATUS_NO_MEMORY
;
1205 NTSTATUS
make_session_info_guest(TALLOC_CTX
*mem_ctx
,
1206 struct auth_session_info
**session_info
)
1208 *session_info
= copy_session_info(mem_ctx
, guest_info
);
1209 return (*session_info
!= NULL
) ? NT_STATUS_OK
: NT_STATUS_NO_MEMORY
;
1212 static struct auth_session_info
*system_info
= NULL
;
1214 NTSTATUS
init_system_session_info(void)
1216 if (system_info
!= NULL
)
1217 return NT_STATUS_OK
;
1219 return make_new_session_info_system(NULL
, &system_info
);
1222 NTSTATUS
make_session_info_system(TALLOC_CTX
*mem_ctx
,
1223 struct auth_session_info
**session_info
)
1225 if (system_info
== NULL
) return NT_STATUS_UNSUCCESSFUL
;
1226 *session_info
= copy_session_info(mem_ctx
, system_info
);
1227 return (*session_info
!= NULL
) ? NT_STATUS_OK
: NT_STATUS_NO_MEMORY
;
1230 const struct auth_session_info
*get_session_info_system(void)
1235 /***************************************************************************
1236 Purely internal function for make_server_info_info3
1237 ***************************************************************************/
1239 static NTSTATUS
check_account(TALLOC_CTX
*mem_ctx
, const char *domain
,
1240 const char *username
, char **found_username
,
1241 struct passwd
**pwd
,
1242 bool *username_was_mapped
)
1244 char *orig_dom_user
= NULL
;
1245 char *dom_user
= NULL
;
1246 char *lower_username
= NULL
;
1247 char *real_username
= NULL
;
1248 struct passwd
*passwd
;
1250 lower_username
= talloc_strdup(mem_ctx
, username
);
1251 if (!lower_username
) {
1252 return NT_STATUS_NO_MEMORY
;
1254 strlower_m( lower_username
);
1256 orig_dom_user
= talloc_asprintf(mem_ctx
,
1259 *lp_winbind_separator(),
1261 if (!orig_dom_user
) {
1262 return NT_STATUS_NO_MEMORY
;
1265 /* Get the passwd struct. Try to create the account if necessary. */
1267 *username_was_mapped
= map_username(mem_ctx
, orig_dom_user
, &dom_user
);
1269 return NT_STATUS_NO_MEMORY
;
1272 passwd
= smb_getpwnam(mem_ctx
, dom_user
, &real_username
, true );
1274 DEBUG(3, ("Failed to find authenticated user %s via "
1275 "getpwnam(), denying access.\n", dom_user
));
1276 return NT_STATUS_NO_SUCH_USER
;
1279 if (!real_username
) {
1280 return NT_STATUS_NO_MEMORY
;
1285 /* This is pointless -- there is no support for differing
1286 unix and windows names. Make sure to always store the
1287 one we actually looked up and succeeded. Have I mentioned
1288 why I hate the 'winbind use default domain' parameter?
1291 *found_username
= talloc_strdup( mem_ctx
, real_username
);
1293 return NT_STATUS_OK
;
1296 /****************************************************************************
1297 Wrapper to allow the getpwnam() call to strip the domain name and
1298 try again in case a local UNIX user is already there. Also run through
1299 the username if we fallback to the username only.
1300 ****************************************************************************/
1302 struct passwd
*smb_getpwnam( TALLOC_CTX
*mem_ctx
, const char *domuser
,
1303 char **p_save_username
, bool create
)
1305 struct passwd
*pw
= NULL
;
1307 char *username
= NULL
;
1309 /* we only save a copy of the username it has been mangled
1310 by winbindd use default domain */
1311 *p_save_username
= NULL
;
1313 /* don't call map_username() here since it has to be done higher
1314 up the stack so we don't call it multiple times */
1316 username
= talloc_strdup(mem_ctx
, domuser
);
1321 p
= strchr_m( username
, *lp_winbind_separator() );
1323 /* code for a DOMAIN\user string */
1326 pw
= Get_Pwnam_alloc( mem_ctx
, domuser
);
1328 /* make sure we get the case of the username correct */
1329 /* work around 'winbind use default domain = yes' */
1331 if ( !strchr_m( pw
->pw_name
, *lp_winbind_separator() ) ) {
1334 /* split the domain and username into 2 strings */
1338 *p_save_username
= talloc_asprintf(mem_ctx
,
1341 *lp_winbind_separator(),
1343 if (!*p_save_username
) {
1348 *p_save_username
= talloc_strdup(mem_ctx
, pw
->pw_name
);
1355 /* setup for lookup of just the username */
1356 /* remember that p and username are overlapping memory */
1359 username
= talloc_strdup(mem_ctx
, p
);
1365 /* just lookup a plain username */
1367 pw
= Get_Pwnam_alloc(mem_ctx
, username
);
1369 /* Create local user if requested but only if winbindd
1370 is not running. We need to protect against cases
1371 where winbindd is failing and then prematurely
1372 creating users in /etc/passwd */
1374 if ( !pw
&& create
&& !winbind_ping() ) {
1375 /* Don't add a machine account. */
1376 if (username
[strlen(username
)-1] == '$')
1379 _smb_create_user(NULL
, username
, NULL
);
1380 pw
= Get_Pwnam_alloc(mem_ctx
, username
);
1383 /* one last check for a valid passwd struct */
1386 *p_save_username
= talloc_strdup(mem_ctx
, pw
->pw_name
);
1391 /***************************************************************************
1392 Make a server_info struct from the info3 returned by a domain logon
1393 ***************************************************************************/
1395 NTSTATUS
make_server_info_info3(TALLOC_CTX
*mem_ctx
,
1396 const char *sent_nt_username
,
1398 struct auth_serversupplied_info
**server_info
,
1399 struct netr_SamInfo3
*info3
)
1401 static const char zeros
[16] = {0, };
1403 NTSTATUS nt_status
= NT_STATUS_OK
;
1404 char *found_username
= NULL
;
1405 const char *nt_domain
;
1406 const char *nt_username
;
1407 bool username_was_mapped
;
1409 struct auth_serversupplied_info
*result
;
1410 struct dom_sid
*group_sid
;
1411 struct netr_SamInfo3
*i3
;
1414 Here is where we should check the list of
1415 trusted domains, and verify that the SID
1419 nt_username
= talloc_strdup(mem_ctx
, info3
->base
.account_name
.string
);
1421 /* If the server didn't give us one, just use the one we sent
1423 nt_username
= sent_nt_username
;
1426 nt_domain
= talloc_strdup(mem_ctx
, info3
->base
.logon_domain
.string
);
1428 /* If the server didn't give us one, just use the one we sent
1433 /* If getpwnam() fails try the add user script (2.2.x behavior).
1435 We use the _unmapped_ username here in an attempt to provide
1436 consistent username mapping behavior between kerberos and NTLM[SSP]
1437 authentication in domain mode security. I.E. Username mapping
1438 should be applied to the fully qualified username
1439 (e.g. DOMAIN\user) and not just the login name. Yes this means we
1440 called map_username() unnecessarily in make_user_info_map() but
1441 that is how the current code is designed. Making the change here
1442 is the least disruptive place. -- jerry */
1444 /* this call will try to create the user if necessary */
1446 nt_status
= check_account(mem_ctx
, nt_domain
, sent_nt_username
,
1447 &found_username
, &pwd
,
1448 &username_was_mapped
);
1450 if (!NT_STATUS_IS_OK(nt_status
)) {
1454 result
= make_server_info(NULL
);
1455 if (result
== NULL
) {
1456 DEBUG(4, ("make_server_info failed!\n"));
1457 return NT_STATUS_NO_MEMORY
;
1460 result
->unix_name
= talloc_strdup(result
, found_username
);
1462 /* copy in the info3 */
1463 result
->info3
= i3
= copy_netr_SamInfo3(result
, info3
);
1464 if (result
->info3
== NULL
) {
1465 TALLOC_FREE(result
);
1466 return NT_STATUS_NO_MEMORY
;
1469 /* Fill in the unix info we found on the way */
1470 result
->utok
.uid
= pwd
->pw_uid
;
1471 result
->utok
.gid
= pwd
->pw_gid
;
1473 /* We can't just trust that the primary group sid sent us is something
1474 * we can really use. Obtain the usable sid, and store the original
1475 * one as an additional group if it had to be replaced */
1476 nt_status
= get_primary_group_sid(mem_ctx
, found_username
,
1478 if (!NT_STATUS_IS_OK(nt_status
)) {
1479 TALLOC_FREE(result
);
1483 /* store and check if it is the same we got originally */
1484 sid_peek_rid(group_sid
, &i3
->base
.primary_gid
);
1485 if (i3
->base
.primary_gid
!= info3
->base
.primary_gid
) {
1486 uint32_t n
= i3
->base
.groups
.count
;
1487 /* not the same, store the original as an additional group */
1488 i3
->base
.groups
.rids
=
1489 talloc_realloc(i3
, i3
->base
.groups
.rids
,
1490 struct samr_RidWithAttribute
, n
+ 1);
1491 if (i3
->base
.groups
.rids
== NULL
) {
1492 TALLOC_FREE(result
);
1493 return NT_STATUS_NO_MEMORY
;
1495 i3
->base
.groups
.rids
[n
].rid
= info3
->base
.primary_gid
;
1496 i3
->base
.groups
.rids
[n
].attributes
= SE_GROUP_ENABLED
;
1497 i3
->base
.groups
.count
= n
+ 1;
1500 /* ensure we are never given NULL session keys */
1502 if (memcmp(info3
->base
.key
.key
, zeros
, sizeof(zeros
)) == 0) {
1503 result
->session_key
= data_blob_null
;
1505 result
->session_key
= data_blob_talloc(
1506 result
, info3
->base
.key
.key
,
1507 sizeof(info3
->base
.key
.key
));
1510 if (memcmp(info3
->base
.LMSessKey
.key
, zeros
, 8) == 0) {
1511 result
->lm_session_key
= data_blob_null
;
1513 result
->lm_session_key
= data_blob_talloc(
1514 result
, info3
->base
.LMSessKey
.key
,
1515 sizeof(info3
->base
.LMSessKey
.key
));
1518 result
->nss_token
|= username_was_mapped
;
1520 result
->guest
= (info3
->base
.user_flags
& NETLOGON_GUEST
);
1522 *server_info
= result
;
1524 return NT_STATUS_OK
;
1527 /*****************************************************************************
1528 Make a server_info struct from the wbcAuthUserInfo returned by a domain logon
1529 ******************************************************************************/
1531 NTSTATUS
make_server_info_wbcAuthUserInfo(TALLOC_CTX
*mem_ctx
,
1532 const char *sent_nt_username
,
1534 const struct wbcAuthUserInfo
*info
,
1535 struct auth_serversupplied_info
**server_info
)
1537 struct netr_SamInfo3
*info3
;
1539 info3
= wbcAuthUserInfo_to_netr_SamInfo3(mem_ctx
, info
);
1541 return NT_STATUS_NO_MEMORY
;
1544 return make_server_info_info3(mem_ctx
,
1545 sent_nt_username
, domain
,
1546 server_info
, info3
);
1550 * Verify whether or not given domain is trusted.
1552 * @param domain_name name of the domain to be verified
1553 * @return true if domain is one of the trusted ones or
1554 * false if otherwise
1557 bool is_trusted_domain(const char* dom_name
)
1559 struct dom_sid trustdom_sid
;
1562 /* no trusted domains for a standalone server */
1564 if ( lp_server_role() == ROLE_STANDALONE
)
1567 if (dom_name
== NULL
|| dom_name
[0] == '\0') {
1571 if (strequal(dom_name
, get_global_sam_name())) {
1575 /* if we are a DC, then check for a direct trust relationships */
1579 DEBUG (5,("is_trusted_domain: Checking for domain trust with "
1580 "[%s]\n", dom_name
));
1581 ret
= pdb_get_trusteddom_pw(dom_name
, NULL
, NULL
, NULL
);
1589 /* If winbind is around, ask it */
1591 result
= wb_is_trusted_domain(dom_name
);
1593 if (result
== WBC_ERR_SUCCESS
) {
1597 if (result
== WBC_ERR_DOMAIN_NOT_FOUND
) {
1598 /* winbind could not find the domain */
1602 /* The only other possible result is that winbind is not up
1603 and running. We need to update the trustdom_cache
1606 update_trustdom_cache();
1609 /* now the trustdom cache should be available a DC could still
1610 * have a transitive trust so fall back to the cache of trusted
1611 * domains (like a domain member would use */
1613 if ( trustdom_cache_fetch(dom_name
, &trustdom_sid
) ) {
1623 on a logon error possibly map the error to success if "map to guest"
1626 NTSTATUS
do_map_to_guest_server_info(NTSTATUS status
,
1627 struct auth_serversupplied_info
**server_info
,
1628 const char *user
, const char *domain
)
1630 user
= user
? user
: "";
1631 domain
= domain
? domain
: "";
1633 if (NT_STATUS_EQUAL(status
, NT_STATUS_NO_SUCH_USER
)) {
1634 if ((lp_map_to_guest() == MAP_TO_GUEST_ON_BAD_USER
) ||
1635 (lp_map_to_guest() == MAP_TO_GUEST_ON_BAD_PASSWORD
)) {
1636 DEBUG(3,("No such user %s [%s] - using guest account\n",
1638 return make_server_info_guest(NULL
, server_info
);
1640 } else if (NT_STATUS_EQUAL(status
, NT_STATUS_WRONG_PASSWORD
)) {
1641 if (lp_map_to_guest() == MAP_TO_GUEST_ON_BAD_PASSWORD
) {
1642 DEBUG(3,("Registered username %s for guest access\n",
1644 return make_server_info_guest(NULL
, server_info
);
1652 Extract session key from a session info and return it in a blob
1653 if intent is KEY_USE_16BYTES, truncate it to 16 bytes
1655 See sections 3.2.4.15 and 3.3.4.2 of MS-SMB
1656 Also see https://lists.samba.org/archive/cifs-protocol/2012-January/002265.html for details
1658 Note that returned session_key is referencing the original key, it is supposed to be
1659 short-lived. If original session_info->session_key is gone, the reference will be broken.
1661 NTSTATUS
session_extract_session_key(const struct auth_session_info
*session_info
, DATA_BLOB
*session_key
, enum session_key_use_intent intent
)
1664 if (session_key
== NULL
|| session_info
== NULL
) {
1665 return NT_STATUS_INVALID_PARAMETER
;
1668 if (session_info
->session_key
.length
== 0) {
1669 return NT_STATUS_NO_USER_SESSION_KEY
;
1672 *session_key
= session_info
->session_key
;
1673 if (intent
== KEY_USE_16BYTES
) {
1674 session_key
->length
= MIN(session_info
->session_key
.length
, 16);
1676 return NT_STATUS_OK
;