2 Unix SMB/CIFS implementation.
3 Authentication utility functions
4 Copyright (C) Volker Lendecke 2010
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #include "../lib/crypto/arcfour.h"
23 #include "../librpc/gen_ndr/netlogon.h"
24 #include "../libcli/security/security.h"
25 #include "rpc_client/util_netlogon.h"
26 #include "nsswitch/libwbclient/wbclient.h"
30 #define DBGC_CLASS DBGC_AUTH
32 /***************************************************************************
33 Make a server_info struct. Free with TALLOC_FREE().
34 ***************************************************************************/
36 struct auth_serversupplied_info
*make_server_info(TALLOC_CTX
*mem_ctx
)
38 struct auth_serversupplied_info
*result
;
40 result
= talloc_zero(mem_ctx
, struct auth_serversupplied_info
);
42 DEBUG(0, ("talloc failed\n"));
46 /* Initialise the uid and gid values to something non-zero
47 which may save us from giving away root access if there
48 is a bug in allocating these fields. */
50 result
->utok
.uid
= -1;
51 result
->utok
.gid
= -1;
56 /****************************************************************************
57 inits a netr_SamInfo2 structure from an auth_serversupplied_info. sam2 must
58 already be initialized and is used as the talloc parent for its members.
59 *****************************************************************************/
61 NTSTATUS
serverinfo_to_SamInfo2(struct auth_serversupplied_info
*server_info
,
62 struct netr_SamInfo2
*sam2
)
64 struct netr_SamInfo3
*info3
;
66 info3
= copy_netr_SamInfo3(sam2
, server_info
->info3
);
68 return NT_STATUS_NO_MEMORY
;
71 if (server_info
->session_key
.length
) {
72 memcpy(info3
->base
.key
.key
,
73 server_info
->session_key
.data
,
74 MIN(sizeof(info3
->base
.key
.key
),
75 server_info
->session_key
.length
));
77 if (server_info
->lm_session_key
.length
) {
78 memcpy(info3
->base
.LMSessKey
.key
,
79 server_info
->lm_session_key
.data
,
80 MIN(sizeof(info3
->base
.LMSessKey
.key
),
81 server_info
->lm_session_key
.length
));
84 sam2
->base
= info3
->base
;
89 /****************************************************************************
90 inits a netr_SamInfo3 structure from an auth_serversupplied_info. sam3 must
91 already be initialized and is used as the talloc parent for its members.
92 *****************************************************************************/
94 NTSTATUS
serverinfo_to_SamInfo3(const struct auth_serversupplied_info
*server_info
,
95 struct netr_SamInfo3
*sam3
)
97 struct netr_SamInfo3
*info3
;
99 info3
= copy_netr_SamInfo3(sam3
, server_info
->info3
);
101 return NT_STATUS_NO_MEMORY
;
104 if (server_info
->session_key
.length
) {
105 memcpy(info3
->base
.key
.key
,
106 server_info
->session_key
.data
,
107 MIN(sizeof(info3
->base
.key
.key
),
108 server_info
->session_key
.length
));
110 if (server_info
->lm_session_key
.length
) {
111 memcpy(info3
->base
.LMSessKey
.key
,
112 server_info
->lm_session_key
.data
,
113 MIN(sizeof(info3
->base
.LMSessKey
.key
),
114 server_info
->lm_session_key
.length
));
117 sam3
->base
= info3
->base
;
125 /****************************************************************************
126 inits a netr_SamInfo6 structure from an auth_serversupplied_info. sam6 must
127 already be initialized and is used as the talloc parent for its members.
128 *****************************************************************************/
130 NTSTATUS
serverinfo_to_SamInfo6(struct auth_serversupplied_info
*server_info
,
131 struct netr_SamInfo6
*sam6
)
133 struct pdb_domain_info
*dominfo
;
134 struct netr_SamInfo3
*info3
;
136 if ((pdb_capabilities() & PDB_CAP_ADS
) == 0) {
137 DEBUG(10,("Not adding validation info level 6 "
138 "without ADS passdb backend\n"));
139 return NT_STATUS_INVALID_INFO_CLASS
;
142 dominfo
= pdb_get_domain_info(sam6
);
143 if (dominfo
== NULL
) {
144 return NT_STATUS_NO_MEMORY
;
147 info3
= copy_netr_SamInfo3(sam6
, server_info
->info3
);
149 return NT_STATUS_NO_MEMORY
;
152 if (server_info
->session_key
.length
) {
153 memcpy(info3
->base
.key
.key
,
154 server_info
->session_key
.data
,
155 MIN(sizeof(info3
->base
.key
.key
),
156 server_info
->session_key
.length
));
158 if (server_info
->lm_session_key
.length
) {
159 memcpy(info3
->base
.LMSessKey
.key
,
160 server_info
->lm_session_key
.data
,
161 MIN(sizeof(info3
->base
.LMSessKey
.key
),
162 server_info
->lm_session_key
.length
));
165 sam6
->base
= info3
->base
;
170 sam6
->dns_domainname
.string
= talloc_strdup(sam6
, dominfo
->dns_domain
);
171 if (sam6
->dns_domainname
.string
== NULL
) {
172 return NT_STATUS_NO_MEMORY
;
175 sam6
->principle
.string
= talloc_asprintf(sam6
, "%s@%s",
176 sam6
->base
.account_name
.string
,
177 sam6
->dns_domainname
.string
);
178 if (sam6
->principle
.string
== NULL
) {
179 return NT_STATUS_NO_MEMORY
;
185 static NTSTATUS
append_netr_SidAttr(TALLOC_CTX
*mem_ctx
,
186 struct netr_SidAttr
**sids
,
188 const struct dom_sid2
*asid
,
193 *sids
= talloc_realloc(mem_ctx
, *sids
, struct netr_SidAttr
, t
+ 1);
195 return NT_STATUS_NO_MEMORY
;
197 (*sids
)[t
].sid
= dom_sid_dup(*sids
, asid
);
198 if ((*sids
)[t
].sid
== NULL
) {
199 return NT_STATUS_NO_MEMORY
;
201 (*sids
)[t
].attributes
= attributes
;
207 /* Fills the samr_RidWithAttributeArray with the provided sids.
208 * If it happens that we have additional groups that do not belong
209 * to the domain, add their sids as extra sids */
210 static NTSTATUS
group_sids_to_info3(struct netr_SamInfo3
*info3
,
211 const struct dom_sid
*sids
,
214 uint32_t attributes
= SE_GROUP_MANDATORY
|
215 SE_GROUP_ENABLED_BY_DEFAULT
|
217 struct samr_RidWithAttributeArray
*groups
;
218 struct dom_sid
*domain_sid
;
224 domain_sid
= info3
->base
.domain_sid
;
225 groups
= &info3
->base
.groups
;
227 groups
->rids
= talloc_array(info3
,
228 struct samr_RidWithAttribute
, num_sids
);
230 return NT_STATUS_NO_MEMORY
;
233 for (i
= 0; i
< num_sids
; i
++) {
234 ok
= sid_peek_check_rid(domain_sid
, &sids
[i
], &rid
);
236 /* store domain group rid */
237 groups
->rids
[groups
->count
].rid
= rid
;
238 groups
->rids
[groups
->count
].attributes
= attributes
;
243 /* if this wasn't a domain sid, add it as extra sid */
244 status
= append_netr_SidAttr(info3
, &info3
->sids
,
246 &sids
[i
], attributes
);
247 if (!NT_STATUS_IS_OK(status
)) {
255 #define RET_NOMEM(ptr) do { \
257 TALLOC_FREE(info3); \
258 return NT_STATUS_NO_MEMORY; \
261 NTSTATUS
samu_to_SamInfo3(TALLOC_CTX
*mem_ctx
,
263 const char *login_server
,
264 struct netr_SamInfo3
**_info3
,
265 struct extra_auth_info
*extra
)
267 struct netr_SamInfo3
*info3
;
268 const struct dom_sid
*user_sid
;
269 const struct dom_sid
*group_sid
;
270 struct dom_sid domain_sid
;
271 struct dom_sid
*group_sids
;
272 uint32_t num_group_sids
= 0;
278 user_sid
= pdb_get_user_sid(samu
);
279 group_sid
= pdb_get_group_sid(samu
);
281 if (!user_sid
|| !group_sid
) {
282 DEBUG(1, ("Sam account is missing sids!\n"));
283 return NT_STATUS_UNSUCCESSFUL
;
286 info3
= talloc_zero(mem_ctx
, struct netr_SamInfo3
);
288 return NT_STATUS_NO_MEMORY
;
291 ZERO_STRUCT(domain_sid
);
293 /* check if this is a "Unix Users" domain user,
294 * we need to handle it in a special way if that's the case */
295 if (sid_check_is_in_unix_users(user_sid
)) {
296 /* in info3 you can only set rids for the user and the
297 * primary group, and the domain sid must be that of
300 * Store a completely bogus value here.
301 * The real SID is stored in the extra sids.
302 * Other code will know to look there if (-1) is found
304 info3
->base
.rid
= (uint32_t)(-1);
305 sid_copy(&extra
->user_sid
, user_sid
);
307 DEBUG(10, ("Unix User found in struct samu. Rid marked as "
308 "special and sid (%s) saved as extra sid\n",
309 sid_string_dbg(user_sid
)));
311 sid_copy(&domain_sid
, user_sid
);
312 sid_split_rid(&domain_sid
, &info3
->base
.rid
);
315 if (is_null_sid(&domain_sid
)) {
316 sid_copy(&domain_sid
, get_global_sam_sid());
319 /* check if this is a "Unix Groups" domain group,
320 * if so we need special handling */
321 if (sid_check_is_in_unix_groups(group_sid
)) {
322 /* in info3 you can only set rids for the user and the
323 * primary group, and the domain sid must be that of
326 * Store a completely bogus value here.
327 * The real SID is stored in the extra sids.
328 * Other code will know to look there if (-1) is found
330 info3
->base
.primary_gid
= (uint32_t)(-1);
331 sid_copy(&extra
->pgid_sid
, group_sid
);
333 DEBUG(10, ("Unix Group found in struct samu. Rid marked as "
334 "special and sid (%s) saved as extra sid\n",
335 sid_string_dbg(group_sid
)));
338 ok
= sid_peek_check_rid(&domain_sid
, group_sid
,
339 &info3
->base
.primary_gid
);
341 DEBUG(1, ("The primary group domain sid(%s) does not "
342 "match the domain sid(%s) for %s(%s)\n",
343 sid_string_dbg(group_sid
),
344 sid_string_dbg(&domain_sid
),
345 pdb_get_username(samu
),
346 sid_string_dbg(user_sid
)));
348 return NT_STATUS_UNSUCCESSFUL
;
352 unix_to_nt_time(&info3
->base
.logon_time
, pdb_get_logon_time(samu
));
353 unix_to_nt_time(&info3
->base
.logoff_time
, get_time_t_max());
354 unix_to_nt_time(&info3
->base
.kickoff_time
, get_time_t_max());
355 unix_to_nt_time(&info3
->base
.last_password_change
,
356 pdb_get_pass_last_set_time(samu
));
357 unix_to_nt_time(&info3
->base
.allow_password_change
,
358 pdb_get_pass_can_change_time(samu
));
359 unix_to_nt_time(&info3
->base
.force_password_change
,
360 pdb_get_pass_must_change_time(samu
));
362 tmp
= pdb_get_username(samu
);
364 info3
->base
.account_name
.string
= talloc_strdup(info3
, tmp
);
365 RET_NOMEM(info3
->base
.account_name
.string
);
367 tmp
= pdb_get_fullname(samu
);
369 info3
->base
.full_name
.string
= talloc_strdup(info3
, tmp
);
370 RET_NOMEM(info3
->base
.full_name
.string
);
372 tmp
= pdb_get_logon_script(samu
);
374 info3
->base
.logon_script
.string
= talloc_strdup(info3
, tmp
);
375 RET_NOMEM(info3
->base
.logon_script
.string
);
377 tmp
= pdb_get_profile_path(samu
);
379 info3
->base
.profile_path
.string
= talloc_strdup(info3
, tmp
);
380 RET_NOMEM(info3
->base
.profile_path
.string
);
382 tmp
= pdb_get_homedir(samu
);
384 info3
->base
.home_directory
.string
= talloc_strdup(info3
, tmp
);
385 RET_NOMEM(info3
->base
.home_directory
.string
);
387 tmp
= pdb_get_dir_drive(samu
);
389 info3
->base
.home_drive
.string
= talloc_strdup(info3
, tmp
);
390 RET_NOMEM(info3
->base
.home_drive
.string
);
393 info3
->base
.logon_count
= pdb_get_logon_count(samu
);
394 info3
->base
.bad_password_count
= pdb_get_bad_password_count(samu
);
396 info3
->base
.logon_domain
.string
= talloc_strdup(info3
,
397 pdb_get_domain(samu
));
398 RET_NOMEM(info3
->base
.logon_domain
.string
);
400 info3
->base
.domain_sid
= dom_sid_dup(info3
, &domain_sid
);
401 RET_NOMEM(info3
->base
.domain_sid
);
403 status
= pdb_enum_group_memberships(mem_ctx
, samu
,
406 if (!NT_STATUS_IS_OK(status
)) {
407 DEBUG(1, ("Failed to get groups from sam account.\n"));
412 if (num_group_sids
) {
413 status
= group_sids_to_info3(info3
, group_sids
, num_group_sids
);
414 if (!NT_STATUS_IS_OK(status
)) {
420 /* We don't need sids and gids after the conversion */
421 TALLOC_FREE(group_sids
);
425 /* FIXME: should we add other flags ? */
426 info3
->base
.user_flags
= NETLOGON_EXTRA_SIDS
;
429 info3
->base
.logon_server
.string
= talloc_strdup(info3
, login_server
);
430 RET_NOMEM(info3
->base
.logon_server
.string
);
433 info3
->base
.acct_flags
= pdb_get_acct_ctrl(samu
);
441 #define RET_NOMEM(ptr) do { \
443 TALLOC_FREE(info3); \
447 struct netr_SamInfo3
*copy_netr_SamInfo3(TALLOC_CTX
*mem_ctx
,
448 struct netr_SamInfo3
*orig
)
450 struct netr_SamInfo3
*info3
;
454 info3
= talloc_zero(mem_ctx
, struct netr_SamInfo3
);
455 if (!info3
) return NULL
;
457 status
= copy_netr_SamBaseInfo(info3
, &orig
->base
, &info3
->base
);
458 if (!NT_STATUS_IS_OK(status
)) {
463 if (orig
->sidcount
) {
464 info3
->sidcount
= orig
->sidcount
;
465 info3
->sids
= talloc_array(info3
, struct netr_SidAttr
,
467 RET_NOMEM(info3
->sids
);
468 for (i
= 0; i
< orig
->sidcount
; i
++) {
469 info3
->sids
[i
].sid
= dom_sid_dup(info3
->sids
,
471 RET_NOMEM(info3
->sids
[i
].sid
);
472 info3
->sids
[i
].attributes
=
473 orig
->sids
[i
].attributes
;
480 static NTSTATUS
wbcsids_to_samr_RidWithAttributeArray(
482 struct samr_RidWithAttributeArray
*groups
,
483 const struct dom_sid
*domain_sid
,
484 const struct wbcSidWithAttr
*sids
,
487 unsigned int i
, j
= 0;
490 groups
->rids
= talloc_array(mem_ctx
,
491 struct samr_RidWithAttribute
, num_sids
);
493 return NT_STATUS_NO_MEMORY
;
496 /* a wbcDomainSid is the same as a dom_sid */
497 for (i
= 0; i
< num_sids
; i
++) {
498 ok
= sid_peek_check_rid(domain_sid
,
499 (const struct dom_sid
*)&sids
[i
].sid
,
500 &groups
->rids
[j
].rid
);
503 groups
->rids
[j
].attributes
= SE_GROUP_MANDATORY
|
504 SE_GROUP_ENABLED_BY_DEFAULT
|
513 static NTSTATUS
wbcsids_to_netr_SidAttrArray(
514 const struct dom_sid
*domain_sid
,
515 const struct wbcSidWithAttr
*sids
,
518 struct netr_SidAttr
**_info3_sids
,
519 uint32_t *info3_num_sids
)
521 unsigned int i
, j
= 0;
522 struct netr_SidAttr
*info3_sids
;
524 info3_sids
= talloc_array(mem_ctx
, struct netr_SidAttr
, num_sids
);
525 if (info3_sids
== NULL
) {
526 return NT_STATUS_NO_MEMORY
;
529 /* a wbcDomainSid is the same as a dom_sid */
530 for (i
= 0; i
< num_sids
; i
++) {
531 const struct dom_sid
*sid
;
533 sid
= (const struct dom_sid
*)&sids
[i
].sid
;
535 if (dom_sid_in_domain(domain_sid
, sid
)) {
539 info3_sids
[j
].sid
= dom_sid_dup(info3_sids
, sid
);
540 if (info3_sids
[j
].sid
== NULL
) {
541 talloc_free(info3_sids
);
542 return NT_STATUS_NO_MEMORY
;
544 info3_sids
[j
].attributes
= SE_GROUP_MANDATORY
|
545 SE_GROUP_ENABLED_BY_DEFAULT
|
551 *_info3_sids
= info3_sids
;
555 struct netr_SamInfo3
*wbcAuthUserInfo_to_netr_SamInfo3(TALLOC_CTX
*mem_ctx
,
556 const struct wbcAuthUserInfo
*info
)
558 struct netr_SamInfo3
*info3
;
559 struct dom_sid user_sid
;
560 struct dom_sid group_sid
;
561 struct dom_sid domain_sid
;
565 memcpy(&user_sid
, &info
->sids
[0].sid
, sizeof(user_sid
));
566 memcpy(&group_sid
, &info
->sids
[1].sid
, sizeof(group_sid
));
568 info3
= talloc_zero(mem_ctx
, struct netr_SamInfo3
);
569 if (!info3
) return NULL
;
571 info3
->base
.logon_time
= info
->logon_time
;
572 info3
->base
.logoff_time
= info
->logoff_time
;
573 info3
->base
.kickoff_time
= info
->kickoff_time
;
574 unix_to_nt_time(&info3
->base
.last_password_change
, info
->pass_last_set_time
);
575 unix_to_nt_time(&info3
->base
.allow_password_change
,
576 info
->pass_can_change_time
);
577 unix_to_nt_time(&info3
->base
.force_password_change
,
578 info
->pass_must_change_time
);
580 if (info
->account_name
) {
581 info3
->base
.account_name
.string
=
582 talloc_strdup(info3
, info
->account_name
);
583 RET_NOMEM(info3
->base
.account_name
.string
);
585 if (info
->full_name
) {
586 info3
->base
.full_name
.string
=
587 talloc_strdup(info3
, info
->full_name
);
588 RET_NOMEM(info3
->base
.full_name
.string
);
590 if (info
->logon_script
) {
591 info3
->base
.logon_script
.string
=
592 talloc_strdup(info3
, info
->logon_script
);
593 RET_NOMEM(info3
->base
.logon_script
.string
);
595 if (info
->profile_path
) {
596 info3
->base
.profile_path
.string
=
597 talloc_strdup(info3
, info
->profile_path
);
598 RET_NOMEM(info3
->base
.profile_path
.string
);
600 if (info
->home_directory
) {
601 info3
->base
.home_directory
.string
=
602 talloc_strdup(info3
, info
->home_directory
);
603 RET_NOMEM(info3
->base
.home_directory
.string
);
605 if (info
->home_drive
) {
606 info3
->base
.home_drive
.string
=
607 talloc_strdup(info3
, info
->home_drive
);
608 RET_NOMEM(info3
->base
.home_drive
.string
);
611 info3
->base
.logon_count
= info
->logon_count
;
612 info3
->base
.bad_password_count
= info
->bad_password_count
;
614 sid_copy(&domain_sid
, &user_sid
);
615 sid_split_rid(&domain_sid
, &info3
->base
.rid
);
617 ok
= sid_peek_check_rid(&domain_sid
, &group_sid
,
618 &info3
->base
.primary_gid
);
620 DEBUG(1, ("The primary group sid domain does not"
621 "match user sid domain for user: %s\n",
622 info
->account_name
));
627 status
= wbcsids_to_samr_RidWithAttributeArray(info3
,
632 if (!NT_STATUS_IS_OK(status
)) {
637 status
= wbcsids_to_netr_SidAttrArray(&domain_sid
,
643 if (!NT_STATUS_IS_OK(status
)) {
648 info3
->base
.user_flags
= info
->user_flags
;
649 memcpy(info3
->base
.key
.key
, info
->user_session_key
, 16);
651 if (info
->logon_server
) {
652 info3
->base
.logon_server
.string
=
653 talloc_strdup(info3
, info
->logon_server
);
654 RET_NOMEM(info3
->base
.logon_server
.string
);
656 if (info
->domain_name
) {
657 info3
->base
.logon_domain
.string
=
658 talloc_strdup(info3
, info
->domain_name
);
659 RET_NOMEM(info3
->base
.logon_domain
.string
);
662 info3
->base
.domain_sid
= dom_sid_dup(info3
, &domain_sid
);
663 RET_NOMEM(info3
->base
.domain_sid
);
665 memcpy(info3
->base
.LMSessKey
.key
, info
->lm_session_key
, 8);
666 info3
->base
.acct_flags
= info
->acct_flags
;