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/>.
21 #include "../lib/crypto/arcfour.h"
22 #include "../librpc/gen_ndr/netlogon.h"
23 #include "../libcli/security/dom_sid.h"
26 #define DBGC_CLASS DBGC_AUTH
28 /* FIXME: do we really still need this ? */
29 static int server_info_dtor(struct auth_serversupplied_info
*server_info
)
31 TALLOC_FREE(server_info
->info3
);
32 ZERO_STRUCTP(server_info
);
36 /***************************************************************************
37 Make a server_info struct. Free with TALLOC_FREE().
38 ***************************************************************************/
40 struct auth_serversupplied_info
*make_server_info(TALLOC_CTX
*mem_ctx
)
42 struct auth_serversupplied_info
*result
;
44 result
= TALLOC_ZERO_P(mem_ctx
, struct auth_serversupplied_info
);
46 DEBUG(0, ("talloc failed\n"));
50 talloc_set_destructor(result
, server_info_dtor
);
52 /* Initialise the uid and gid values to something non-zero
53 which may save us from giving away root access if there
54 is a bug in allocating these fields. */
56 result
->utok
.uid
= -1;
57 result
->utok
.gid
= -1;
62 /****************************************************************************
63 inits a netr_SamInfo2 structure from an auth_serversupplied_info. sam2 must
64 already be initialized and is used as the talloc parent for its members.
65 *****************************************************************************/
67 NTSTATUS
serverinfo_to_SamInfo2(struct auth_serversupplied_info
*server_info
,
68 uint8_t *pipe_session_key
,
69 size_t pipe_session_key_len
,
70 struct netr_SamInfo2
*sam2
)
72 struct netr_SamInfo3
*info3
;
74 info3
= copy_netr_SamInfo3(sam2
, server_info
->info3
);
76 return NT_STATUS_NO_MEMORY
;
79 if (server_info
->user_session_key
.length
) {
80 memcpy(info3
->base
.key
.key
,
81 server_info
->user_session_key
.data
,
82 MIN(sizeof(info3
->base
.key
.key
),
83 server_info
->user_session_key
.length
));
84 if (pipe_session_key
) {
85 arcfour_crypt(info3
->base
.key
.key
,
86 pipe_session_key
, 16);
89 if (server_info
->lm_session_key
.length
) {
90 memcpy(info3
->base
.LMSessKey
.key
,
91 server_info
->lm_session_key
.data
,
92 MIN(sizeof(info3
->base
.LMSessKey
.key
),
93 server_info
->lm_session_key
.length
));
94 if (pipe_session_key
) {
95 arcfour_crypt(info3
->base
.LMSessKey
.key
,
100 sam2
->base
= info3
->base
;
105 /****************************************************************************
106 inits a netr_SamInfo3 structure from an auth_serversupplied_info. sam3 must
107 already be initialized and is used as the talloc parent for its members.
108 *****************************************************************************/
110 NTSTATUS
serverinfo_to_SamInfo3(struct auth_serversupplied_info
*server_info
,
111 uint8_t *pipe_session_key
,
112 size_t pipe_session_key_len
,
113 struct netr_SamInfo3
*sam3
)
115 struct netr_SamInfo3
*info3
;
117 info3
= copy_netr_SamInfo3(sam3
, server_info
->info3
);
119 return NT_STATUS_NO_MEMORY
;
122 if (server_info
->user_session_key
.length
) {
123 memcpy(info3
->base
.key
.key
,
124 server_info
->user_session_key
.data
,
125 MIN(sizeof(info3
->base
.key
.key
),
126 server_info
->user_session_key
.length
));
127 if (pipe_session_key
) {
128 arcfour_crypt(info3
->base
.key
.key
,
129 pipe_session_key
, 16);
132 if (server_info
->lm_session_key
.length
) {
133 memcpy(info3
->base
.LMSessKey
.key
,
134 server_info
->lm_session_key
.data
,
135 MIN(sizeof(info3
->base
.LMSessKey
.key
),
136 server_info
->lm_session_key
.length
));
137 if (pipe_session_key
) {
138 arcfour_crypt(info3
->base
.LMSessKey
.key
,
139 pipe_session_key
, 8);
143 sam3
->base
= info3
->base
;
151 /****************************************************************************
152 inits a netr_SamInfo6 structure from an auth_serversupplied_info. sam6 must
153 already be initialized and is used as the talloc parent for its members.
154 *****************************************************************************/
156 NTSTATUS
serverinfo_to_SamInfo6(struct auth_serversupplied_info
*server_info
,
157 uint8_t *pipe_session_key
,
158 size_t pipe_session_key_len
,
159 struct netr_SamInfo6
*sam6
)
161 struct pdb_domain_info
*dominfo
;
162 struct netr_SamInfo3
*info3
;
164 if ((pdb_capabilities() & PDB_CAP_ADS
) == 0) {
165 DEBUG(10,("Not adding validation info level 6 "
166 "without ADS passdb backend\n"));
167 return NT_STATUS_INVALID_INFO_CLASS
;
170 dominfo
= pdb_get_domain_info(sam6
);
171 if (dominfo
== NULL
) {
172 return NT_STATUS_NO_MEMORY
;
175 info3
= copy_netr_SamInfo3(sam6
, server_info
->info3
);
177 return NT_STATUS_NO_MEMORY
;
180 if (server_info
->user_session_key
.length
) {
181 memcpy(info3
->base
.key
.key
,
182 server_info
->user_session_key
.data
,
183 MIN(sizeof(info3
->base
.key
.key
),
184 server_info
->user_session_key
.length
));
185 if (pipe_session_key
) {
186 arcfour_crypt(info3
->base
.key
.key
,
187 pipe_session_key
, 16);
190 if (server_info
->lm_session_key
.length
) {
191 memcpy(info3
->base
.LMSessKey
.key
,
192 server_info
->lm_session_key
.data
,
193 MIN(sizeof(info3
->base
.LMSessKey
.key
),
194 server_info
->lm_session_key
.length
));
195 if (pipe_session_key
) {
196 arcfour_crypt(info3
->base
.LMSessKey
.key
,
197 pipe_session_key
, 8);
201 sam6
->base
= info3
->base
;
206 sam6
->dns_domainname
.string
= talloc_strdup(sam6
, dominfo
->dns_domain
);
207 if (sam6
->dns_domainname
.string
== NULL
) {
208 return NT_STATUS_NO_MEMORY
;
211 sam6
->principle
.string
= talloc_asprintf(sam6
, "%s@%s",
212 sam6
->base
.account_name
.string
,
213 sam6
->dns_domainname
.string
);
214 if (sam6
->principle
.string
== NULL
) {
215 return NT_STATUS_NO_MEMORY
;
221 static NTSTATUS
append_netr_SidAttr(TALLOC_CTX
*mem_ctx
,
222 struct netr_SidAttr
**sids
,
224 const struct dom_sid2
*asid
,
229 *sids
= talloc_realloc(mem_ctx
, *sids
, struct netr_SidAttr
, t
+ 1);
231 return NT_STATUS_NO_MEMORY
;
233 (*sids
)[t
].sid
= dom_sid_dup(*sids
, asid
);
234 if ((*sids
)[t
].sid
== NULL
) {
235 return NT_STATUS_NO_MEMORY
;
237 (*sids
)[t
].attributes
= attributes
;
243 /* Fils the samr_RidWithAttributeArray with the provided sids.
244 * If it happens that we have additional groups that do not belong
245 * to the domain, add their sids as extra sids */
246 static NTSTATUS
group_sids_to_info3(struct netr_SamInfo3
*info3
,
247 const struct dom_sid
*sids
,
250 uint32_t attributes
= SE_GROUP_MANDATORY
|
251 SE_GROUP_ENABLED_BY_DEFAULT
|
253 struct samr_RidWithAttributeArray
*groups
;
254 struct dom_sid
*domain_sid
;
260 domain_sid
= info3
->base
.domain_sid
;
261 groups
= &info3
->base
.groups
;
263 groups
->rids
= talloc_array(info3
,
264 struct samr_RidWithAttribute
, num_sids
);
266 return NT_STATUS_NO_MEMORY
;
269 for (i
= 0; i
< num_sids
; i
++) {
270 ok
= sid_peek_check_rid(domain_sid
, &sids
[i
], &rid
);
273 /* if it is the primary gid, skip it, we
274 * obviously already have it */
275 if (info3
->base
.primary_gid
== rid
) continue;
277 /* store domain group rid */
278 groups
->rids
[i
].rid
= rid
;
279 groups
->rids
[i
].attributes
= attributes
;
284 /* if this wasn't a domain sid, add it as extra sid */
285 status
= append_netr_SidAttr(info3
, &info3
->sids
,
287 &sids
[i
], attributes
);
288 if (!NT_STATUS_IS_OK(status
)) {
296 #define RET_NOMEM(ptr) do { \
298 TALLOC_FREE(info3); \
299 return NT_STATUS_NO_MEMORY; \
302 NTSTATUS
samu_to_SamInfo3(TALLOC_CTX
*mem_ctx
,
304 const char *login_server
,
305 struct netr_SamInfo3
**_info3
,
306 struct extra_auth_info
*extra
)
308 struct netr_SamInfo3
*info3
;
309 const struct dom_sid
*user_sid
;
310 const struct dom_sid
*group_sid
;
311 struct dom_sid domain_sid
;
312 struct dom_sid
*group_sids
;
313 size_t num_group_sids
= 0;
319 user_sid
= pdb_get_user_sid(samu
);
320 group_sid
= pdb_get_group_sid(samu
);
322 if (!user_sid
|| !group_sid
) {
323 DEBUG(1, ("Sam account is missing sids!\n"));
324 return NT_STATUS_UNSUCCESSFUL
;
327 info3
= talloc_zero(mem_ctx
, struct netr_SamInfo3
);
329 return NT_STATUS_NO_MEMORY
;
332 ZERO_STRUCT(domain_sid
);
334 /* check if this is a "Unix Users" domain user,
335 * we need to handle it in a special way if that's the case */
336 if (dom_sid_compare_domain(user_sid
, &global_sid_Unix_Users
) == 0) {
337 /* in info3 you can only set rids for the user and the
338 * primary group, and the domain sid must be that of
341 * Store a completely bogus value here.
342 * The real SID is stored in the extra sids.
343 * Other code will know to look there if (-1) is found
345 info3
->base
.rid
= (uint32_t)(-1);
346 sid_copy(&extra
->user_sid
, user_sid
);
348 DEBUG(10, ("Unix User found in struct samu. Rid marked as "
349 "special and sid (%s) saved as extra sid\n",
350 sid_string_dbg(user_sid
)));
352 sid_copy(&domain_sid
, user_sid
);
353 sid_split_rid(&domain_sid
, &info3
->base
.rid
);
356 if (is_null_sid(&domain_sid
)) {
357 sid_copy(&domain_sid
, get_global_sam_sid());
360 /* check if this is a "Unix Groups" domain group,
361 * if so we need special handling */
362 if (dom_sid_compare_domain(group_sid
, &global_sid_Unix_Groups
) == 0) {
363 /* in info3 you can only set rids for the user and the
364 * primary group, and the domain sid must be that of
367 * Store a completely bogus value here.
368 * The real SID is stored in the extra sids.
369 * Other code will know to look there if (-1) is found
371 info3
->base
.primary_gid
= (uint32_t)(-1);
372 sid_copy(&extra
->pgid_sid
, group_sid
);
374 DEBUG(10, ("Unix Group found in struct samu. Rid marked as "
375 "special and sid (%s) saved as extra sid\n",
376 sid_string_dbg(group_sid
)));
379 ok
= sid_peek_check_rid(&domain_sid
, group_sid
,
380 &info3
->base
.primary_gid
);
382 DEBUG(1, ("The primary group domain sid(%s) does not "
383 "match the domain sid(%s) for %s(%s)\n",
384 sid_string_dbg(group_sid
),
385 sid_string_dbg(&domain_sid
),
386 pdb_get_username(samu
),
387 sid_string_dbg(user_sid
)));
389 return NT_STATUS_UNSUCCESSFUL
;
393 unix_to_nt_time(&info3
->base
.last_logon
, pdb_get_logon_time(samu
));
394 unix_to_nt_time(&info3
->base
.last_logoff
, get_time_t_max());
395 unix_to_nt_time(&info3
->base
.acct_expiry
, get_time_t_max());
396 unix_to_nt_time(&info3
->base
.last_password_change
,
397 pdb_get_pass_last_set_time(samu
));
398 unix_to_nt_time(&info3
->base
.allow_password_change
,
399 pdb_get_pass_can_change_time(samu
));
400 unix_to_nt_time(&info3
->base
.force_password_change
,
401 pdb_get_pass_must_change_time(samu
));
403 tmp
= pdb_get_username(samu
);
405 info3
->base
.account_name
.string
= talloc_strdup(info3
, tmp
);
406 RET_NOMEM(info3
->base
.account_name
.string
);
408 tmp
= pdb_get_fullname(samu
);
410 info3
->base
.full_name
.string
= talloc_strdup(info3
, tmp
);
411 RET_NOMEM(info3
->base
.full_name
.string
);
413 tmp
= pdb_get_logon_script(samu
);
415 info3
->base
.logon_script
.string
= talloc_strdup(info3
, tmp
);
416 RET_NOMEM(info3
->base
.logon_script
.string
);
418 tmp
= pdb_get_profile_path(samu
);
420 info3
->base
.profile_path
.string
= talloc_strdup(info3
, tmp
);
421 RET_NOMEM(info3
->base
.profile_path
.string
);
423 tmp
= pdb_get_homedir(samu
);
425 info3
->base
.home_directory
.string
= talloc_strdup(info3
, tmp
);
426 RET_NOMEM(info3
->base
.home_directory
.string
);
428 tmp
= pdb_get_dir_drive(samu
);
430 info3
->base
.home_drive
.string
= talloc_strdup(info3
, tmp
);
431 RET_NOMEM(info3
->base
.home_drive
.string
);
434 info3
->base
.logon_count
= pdb_get_logon_count(samu
);
435 info3
->base
.bad_password_count
= pdb_get_bad_password_count(samu
);
437 status
= pdb_enum_group_memberships(mem_ctx
, samu
,
440 if (!NT_STATUS_IS_OK(status
)) {
441 DEBUG(1, ("Failed to get groups from sam account.\n"));
446 if (num_group_sids
) {
447 status
= group_sids_to_info3(info3
, group_sids
, num_group_sids
);
448 if (!NT_STATUS_IS_OK(status
)) {
454 /* We don't need sids and gids after the conversion */
455 TALLOC_FREE(group_sids
);
459 /* FIXME: should we add other flags ? */
460 info3
->base
.user_flags
= NETLOGON_EXTRA_SIDS
;
463 info3
->base
.logon_server
.string
= talloc_strdup(info3
, login_server
);
464 RET_NOMEM(info3
->base
.logon_server
.string
);
467 info3
->base
.domain
.string
= talloc_strdup(info3
,
468 pdb_get_domain(samu
));
469 RET_NOMEM(info3
->base
.domain
.string
);
471 info3
->base
.domain_sid
= dom_sid_dup(info3
, &domain_sid
);
472 RET_NOMEM(info3
->base
.domain_sid
);
474 info3
->base
.acct_flags
= pdb_get_acct_ctrl(samu
);
482 #define RET_NOMEM(ptr) do { \
484 TALLOC_FREE(info3); \
488 struct netr_SamInfo3
*copy_netr_SamInfo3(TALLOC_CTX
*mem_ctx
,
489 struct netr_SamInfo3
*orig
)
491 struct netr_SamInfo3
*info3
;
494 info3
= talloc_zero(mem_ctx
, struct netr_SamInfo3
);
495 if (!info3
) return NULL
;
497 /* first copy all, then realloc pointers */
498 info3
->base
= orig
->base
;
500 if (orig
->base
.account_name
.string
) {
501 info3
->base
.account_name
.string
=
502 talloc_strdup(info3
, orig
->base
.account_name
.string
);
503 RET_NOMEM(info3
->base
.account_name
.string
);
505 if (orig
->base
.full_name
.string
) {
506 info3
->base
.full_name
.string
=
507 talloc_strdup(info3
, orig
->base
.full_name
.string
);
508 RET_NOMEM(info3
->base
.full_name
.string
);
510 if (orig
->base
.logon_script
.string
) {
511 info3
->base
.logon_script
.string
=
512 talloc_strdup(info3
, orig
->base
.logon_script
.string
);
513 RET_NOMEM(info3
->base
.logon_script
.string
);
515 if (orig
->base
.profile_path
.string
) {
516 info3
->base
.profile_path
.string
=
517 talloc_strdup(info3
, orig
->base
.profile_path
.string
);
518 RET_NOMEM(info3
->base
.profile_path
.string
);
520 if (orig
->base
.home_directory
.string
) {
521 info3
->base
.home_directory
.string
=
522 talloc_strdup(info3
, orig
->base
.home_directory
.string
);
523 RET_NOMEM(info3
->base
.home_directory
.string
);
525 if (orig
->base
.home_drive
.string
) {
526 info3
->base
.home_drive
.string
=
527 talloc_strdup(info3
, orig
->base
.home_drive
.string
);
528 RET_NOMEM(info3
->base
.home_drive
.string
);
531 if (orig
->base
.groups
.count
) {
532 info3
->base
.groups
.rids
= (struct samr_RidWithAttribute
*)
533 talloc_memdup(info3
, orig
->base
.groups
.rids
,
534 (sizeof(struct samr_RidWithAttribute
) *
535 orig
->base
.groups
.count
));
536 RET_NOMEM(info3
->base
.groups
.rids
);
539 if (orig
->base
.logon_server
.string
) {
540 info3
->base
.logon_server
.string
=
541 talloc_strdup(info3
, orig
->base
.logon_server
.string
);
542 RET_NOMEM(info3
->base
.logon_server
.string
);
544 if (orig
->base
.domain
.string
) {
545 info3
->base
.domain
.string
=
546 talloc_strdup(info3
, orig
->base
.domain
.string
);
547 RET_NOMEM(info3
->base
.domain
.string
);
550 if (orig
->base
.domain_sid
) {
551 info3
->base
.domain_sid
= dom_sid_dup(info3
, orig
->base
.domain_sid
);
552 RET_NOMEM(info3
->base
.domain_sid
);
555 if (orig
->sidcount
) {
556 info3
->sidcount
= orig
->sidcount
;
557 info3
->sids
= talloc_array(info3
, struct netr_SidAttr
,
559 RET_NOMEM(info3
->sids
);
560 for (i
= 0; i
< orig
->sidcount
; i
++) {
561 info3
->sids
[i
].sid
= dom_sid_dup(info3
->sids
,
563 RET_NOMEM(info3
->sids
[i
].sid
);
564 info3
->sids
[i
].attributes
=
565 orig
->sids
[i
].attributes
;
572 static NTSTATUS
wbcsids_to_samr_RidWithAttributeArray(
574 struct samr_RidWithAttributeArray
*groups
,
575 const struct dom_sid
*domain_sid
,
576 const struct wbcSidWithAttr
*sids
,
582 groups
->rids
= talloc_array(mem_ctx
,
583 struct samr_RidWithAttribute
, num_sids
);
585 return NT_STATUS_NO_MEMORY
;
588 /* a wbcDomainSid is the same as a dom_sid */
589 for (i
= 0; i
< num_sids
; i
++) {
590 ok
= sid_peek_check_rid(domain_sid
,
591 (const struct dom_sid
*)&sids
[i
].sid
,
592 &groups
->rids
[i
].rid
);
595 groups
->rids
[i
].attributes
= SE_GROUP_MANDATORY
|
596 SE_GROUP_ENABLED_BY_DEFAULT
|
604 struct netr_SamInfo3
*wbcAuthUserInfo_to_netr_SamInfo3(TALLOC_CTX
*mem_ctx
,
605 const struct wbcAuthUserInfo
*info
)
607 struct netr_SamInfo3
*info3
;
608 struct dom_sid user_sid
;
609 struct dom_sid group_sid
;
610 struct dom_sid domain_sid
;
614 memcpy(&user_sid
, &info
->sids
[0].sid
, sizeof(user_sid
));
615 memcpy(&group_sid
, &info
->sids
[1].sid
, sizeof(group_sid
));
617 info3
= talloc_zero(mem_ctx
, struct netr_SamInfo3
);
618 if (!info3
) return NULL
;
620 info3
->base
.last_logon
= info
->logon_time
;
621 info3
->base
.last_logoff
= info
->logoff_time
;
622 info3
->base
.acct_expiry
= info
->kickoff_time
;
623 info3
->base
.last_password_change
= info
->pass_last_set_time
;
624 info3
->base
.allow_password_change
= info
->pass_can_change_time
;
625 info3
->base
.force_password_change
= info
->pass_must_change_time
;
627 if (info
->account_name
) {
628 info3
->base
.account_name
.string
=
629 talloc_strdup(info3
, info
->account_name
);
630 RET_NOMEM(info3
->base
.account_name
.string
);
632 if (info
->full_name
) {
633 info3
->base
.full_name
.string
=
634 talloc_strdup(info3
, info
->full_name
);
635 RET_NOMEM(info3
->base
.full_name
.string
);
637 if (info
->logon_script
) {
638 info3
->base
.logon_script
.string
=
639 talloc_strdup(info3
, info
->logon_script
);
640 RET_NOMEM(info3
->base
.logon_script
.string
);
642 if (info
->profile_path
) {
643 info3
->base
.profile_path
.string
=
644 talloc_strdup(info3
, info
->profile_path
);
645 RET_NOMEM(info3
->base
.profile_path
.string
);
647 if (info
->home_directory
) {
648 info3
->base
.home_directory
.string
=
649 talloc_strdup(info3
, info
->home_directory
);
650 RET_NOMEM(info3
->base
.home_directory
.string
);
652 if (info
->home_drive
) {
653 info3
->base
.home_drive
.string
=
654 talloc_strdup(info3
, info
->home_drive
);
655 RET_NOMEM(info3
->base
.home_drive
.string
);
658 info3
->base
.logon_count
= info
->logon_count
;
659 info3
->base
.bad_password_count
= info
->bad_password_count
;
661 sid_copy(&domain_sid
, &user_sid
);
662 sid_split_rid(&domain_sid
, &info3
->base
.rid
);
664 ok
= sid_peek_check_rid(&domain_sid
, &group_sid
,
665 &info3
->base
.primary_gid
);
667 DEBUG(1, ("The primary group sid domain does not"
668 "match user sid domain for user: %s\n",
669 info
->account_name
));
674 status
= wbcsids_to_samr_RidWithAttributeArray(info3
,
679 if (!NT_STATUS_IS_OK(status
)) {
684 info3
->base
.user_flags
= info
->user_flags
;
685 memcpy(info3
->base
.key
.key
, info
->user_session_key
, 16);
687 if (info
->logon_server
) {
688 info3
->base
.logon_server
.string
=
689 talloc_strdup(info3
, info
->logon_server
);
690 RET_NOMEM(info3
->base
.logon_server
.string
);
692 if (info
->domain_name
) {
693 info3
->base
.domain
.string
=
694 talloc_strdup(info3
, info
->domain_name
);
695 RET_NOMEM(info3
->base
.domain
.string
);
698 info3
->base
.domain_sid
= dom_sid_dup(info3
, &domain_sid
);
699 RET_NOMEM(info3
->base
.domain_sid
);
701 memcpy(info3
->base
.LMSessKey
.key
, info
->lm_session_key
, 8);
702 info3
->base
.acct_flags
= info
->acct_flags
;