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 uint8_t *pipe_session_key
,
63 size_t pipe_session_key_len
,
64 struct netr_SamInfo2
*sam2
)
66 struct netr_SamInfo3
*info3
;
68 info3
= copy_netr_SamInfo3(sam2
, server_info
->info3
);
70 return NT_STATUS_NO_MEMORY
;
73 if (server_info
->session_key
.length
) {
74 memcpy(info3
->base
.key
.key
,
75 server_info
->session_key
.data
,
76 MIN(sizeof(info3
->base
.key
.key
),
77 server_info
->session_key
.length
));
78 if (pipe_session_key
) {
79 arcfour_crypt(info3
->base
.key
.key
,
80 pipe_session_key
, 16);
83 if (server_info
->lm_session_key
.length
) {
84 memcpy(info3
->base
.LMSessKey
.key
,
85 server_info
->lm_session_key
.data
,
86 MIN(sizeof(info3
->base
.LMSessKey
.key
),
87 server_info
->lm_session_key
.length
));
88 if (pipe_session_key
) {
89 arcfour_crypt(info3
->base
.LMSessKey
.key
,
94 sam2
->base
= info3
->base
;
99 /****************************************************************************
100 inits a netr_SamInfo3 structure from an auth_serversupplied_info. sam3 must
101 already be initialized and is used as the talloc parent for its members.
102 *****************************************************************************/
104 NTSTATUS
serverinfo_to_SamInfo3(const struct auth_serversupplied_info
*server_info
,
105 uint8_t *pipe_session_key
,
106 size_t pipe_session_key_len
,
107 struct netr_SamInfo3
*sam3
)
109 struct netr_SamInfo3
*info3
;
111 info3
= copy_netr_SamInfo3(sam3
, server_info
->info3
);
113 return NT_STATUS_NO_MEMORY
;
116 if (server_info
->session_key
.length
) {
117 memcpy(info3
->base
.key
.key
,
118 server_info
->session_key
.data
,
119 MIN(sizeof(info3
->base
.key
.key
),
120 server_info
->session_key
.length
));
121 if (pipe_session_key
) {
122 arcfour_crypt(info3
->base
.key
.key
,
123 pipe_session_key
, 16);
126 if (server_info
->lm_session_key
.length
) {
127 memcpy(info3
->base
.LMSessKey
.key
,
128 server_info
->lm_session_key
.data
,
129 MIN(sizeof(info3
->base
.LMSessKey
.key
),
130 server_info
->lm_session_key
.length
));
131 if (pipe_session_key
) {
132 arcfour_crypt(info3
->base
.LMSessKey
.key
,
133 pipe_session_key
, 8);
137 sam3
->base
= info3
->base
;
145 /****************************************************************************
146 inits a netr_SamInfo6 structure from an auth_serversupplied_info. sam6 must
147 already be initialized and is used as the talloc parent for its members.
148 *****************************************************************************/
150 NTSTATUS
serverinfo_to_SamInfo6(struct auth_serversupplied_info
*server_info
,
151 uint8_t *pipe_session_key
,
152 size_t pipe_session_key_len
,
153 struct netr_SamInfo6
*sam6
)
155 struct pdb_domain_info
*dominfo
;
156 struct netr_SamInfo3
*info3
;
158 if ((pdb_capabilities() & PDB_CAP_ADS
) == 0) {
159 DEBUG(10,("Not adding validation info level 6 "
160 "without ADS passdb backend\n"));
161 return NT_STATUS_INVALID_INFO_CLASS
;
164 dominfo
= pdb_get_domain_info(sam6
);
165 if (dominfo
== NULL
) {
166 return NT_STATUS_NO_MEMORY
;
169 info3
= copy_netr_SamInfo3(sam6
, server_info
->info3
);
171 return NT_STATUS_NO_MEMORY
;
174 if (server_info
->session_key
.length
) {
175 memcpy(info3
->base
.key
.key
,
176 server_info
->session_key
.data
,
177 MIN(sizeof(info3
->base
.key
.key
),
178 server_info
->session_key
.length
));
180 if (server_info
->lm_session_key
.length
) {
181 memcpy(info3
->base
.LMSessKey
.key
,
182 server_info
->lm_session_key
.data
,
183 MIN(sizeof(info3
->base
.LMSessKey
.key
),
184 server_info
->lm_session_key
.length
));
187 sam6
->base
= info3
->base
;
192 sam6
->dns_domainname
.string
= talloc_strdup(sam6
, dominfo
->dns_domain
);
193 if (sam6
->dns_domainname
.string
== NULL
) {
194 return NT_STATUS_NO_MEMORY
;
197 sam6
->principle
.string
= talloc_asprintf(sam6
, "%s@%s",
198 sam6
->base
.account_name
.string
,
199 sam6
->dns_domainname
.string
);
200 if (sam6
->principle
.string
== NULL
) {
201 return NT_STATUS_NO_MEMORY
;
207 static NTSTATUS
append_netr_SidAttr(TALLOC_CTX
*mem_ctx
,
208 struct netr_SidAttr
**sids
,
210 const struct dom_sid2
*asid
,
215 *sids
= talloc_realloc(mem_ctx
, *sids
, struct netr_SidAttr
, t
+ 1);
217 return NT_STATUS_NO_MEMORY
;
219 (*sids
)[t
].sid
= dom_sid_dup(*sids
, asid
);
220 if ((*sids
)[t
].sid
== NULL
) {
221 return NT_STATUS_NO_MEMORY
;
223 (*sids
)[t
].attributes
= attributes
;
229 /* Fills the samr_RidWithAttributeArray with the provided sids.
230 * If it happens that we have additional groups that do not belong
231 * to the domain, add their sids as extra sids */
232 static NTSTATUS
group_sids_to_info3(struct netr_SamInfo3
*info3
,
233 const struct dom_sid
*sids
,
236 uint32_t attributes
= SE_GROUP_MANDATORY
|
237 SE_GROUP_ENABLED_BY_DEFAULT
|
239 struct samr_RidWithAttributeArray
*groups
;
240 struct dom_sid
*domain_sid
;
246 domain_sid
= info3
->base
.domain_sid
;
247 groups
= &info3
->base
.groups
;
249 groups
->rids
= talloc_array(info3
,
250 struct samr_RidWithAttribute
, num_sids
);
252 return NT_STATUS_NO_MEMORY
;
255 for (i
= 0; i
< num_sids
; i
++) {
256 ok
= sid_peek_check_rid(domain_sid
, &sids
[i
], &rid
);
258 /* store domain group rid */
259 groups
->rids
[groups
->count
].rid
= rid
;
260 groups
->rids
[groups
->count
].attributes
= attributes
;
265 /* if this wasn't a domain sid, add it as extra sid */
266 status
= append_netr_SidAttr(info3
, &info3
->sids
,
268 &sids
[i
], attributes
);
269 if (!NT_STATUS_IS_OK(status
)) {
277 #define RET_NOMEM(ptr) do { \
279 TALLOC_FREE(info3); \
280 return NT_STATUS_NO_MEMORY; \
283 NTSTATUS
samu_to_SamInfo3(TALLOC_CTX
*mem_ctx
,
285 const char *login_server
,
286 struct netr_SamInfo3
**_info3
,
287 struct extra_auth_info
*extra
)
289 struct netr_SamInfo3
*info3
;
290 const struct dom_sid
*user_sid
;
291 const struct dom_sid
*group_sid
;
292 struct dom_sid domain_sid
;
293 struct dom_sid
*group_sids
;
294 uint32_t num_group_sids
= 0;
300 user_sid
= pdb_get_user_sid(samu
);
301 group_sid
= pdb_get_group_sid(samu
);
303 if (!user_sid
|| !group_sid
) {
304 DEBUG(1, ("Sam account is missing sids!\n"));
305 return NT_STATUS_UNSUCCESSFUL
;
308 info3
= talloc_zero(mem_ctx
, struct netr_SamInfo3
);
310 return NT_STATUS_NO_MEMORY
;
313 ZERO_STRUCT(domain_sid
);
315 /* check if this is a "Unix Users" domain user,
316 * we need to handle it in a special way if that's the case */
317 if (sid_check_is_in_unix_users(user_sid
)) {
318 /* in info3 you can only set rids for the user and the
319 * primary group, and the domain sid must be that of
322 * Store a completely bogus value here.
323 * The real SID is stored in the extra sids.
324 * Other code will know to look there if (-1) is found
326 info3
->base
.rid
= (uint32_t)(-1);
327 sid_copy(&extra
->user_sid
, user_sid
);
329 DEBUG(10, ("Unix User found in struct samu. Rid marked as "
330 "special and sid (%s) saved as extra sid\n",
331 sid_string_dbg(user_sid
)));
333 sid_copy(&domain_sid
, user_sid
);
334 sid_split_rid(&domain_sid
, &info3
->base
.rid
);
337 if (is_null_sid(&domain_sid
)) {
338 sid_copy(&domain_sid
, get_global_sam_sid());
341 /* check if this is a "Unix Groups" domain group,
342 * if so we need special handling */
343 if (sid_check_is_in_unix_groups(group_sid
)) {
344 /* in info3 you can only set rids for the user and the
345 * primary group, and the domain sid must be that of
348 * Store a completely bogus value here.
349 * The real SID is stored in the extra sids.
350 * Other code will know to look there if (-1) is found
352 info3
->base
.primary_gid
= (uint32_t)(-1);
353 sid_copy(&extra
->pgid_sid
, group_sid
);
355 DEBUG(10, ("Unix Group found in struct samu. Rid marked as "
356 "special and sid (%s) saved as extra sid\n",
357 sid_string_dbg(group_sid
)));
360 ok
= sid_peek_check_rid(&domain_sid
, group_sid
,
361 &info3
->base
.primary_gid
);
363 DEBUG(1, ("The primary group domain sid(%s) does not "
364 "match the domain sid(%s) for %s(%s)\n",
365 sid_string_dbg(group_sid
),
366 sid_string_dbg(&domain_sid
),
367 pdb_get_username(samu
),
368 sid_string_dbg(user_sid
)));
370 return NT_STATUS_UNSUCCESSFUL
;
374 unix_to_nt_time(&info3
->base
.logon_time
, pdb_get_logon_time(samu
));
375 unix_to_nt_time(&info3
->base
.logoff_time
, get_time_t_max());
376 unix_to_nt_time(&info3
->base
.kickoff_time
, get_time_t_max());
377 unix_to_nt_time(&info3
->base
.last_password_change
,
378 pdb_get_pass_last_set_time(samu
));
379 unix_to_nt_time(&info3
->base
.allow_password_change
,
380 pdb_get_pass_can_change_time(samu
));
381 unix_to_nt_time(&info3
->base
.force_password_change
,
382 pdb_get_pass_must_change_time(samu
));
384 tmp
= pdb_get_username(samu
);
386 info3
->base
.account_name
.string
= talloc_strdup(info3
, tmp
);
387 RET_NOMEM(info3
->base
.account_name
.string
);
389 tmp
= pdb_get_fullname(samu
);
391 info3
->base
.full_name
.string
= talloc_strdup(info3
, tmp
);
392 RET_NOMEM(info3
->base
.full_name
.string
);
394 tmp
= pdb_get_logon_script(samu
);
396 info3
->base
.logon_script
.string
= talloc_strdup(info3
, tmp
);
397 RET_NOMEM(info3
->base
.logon_script
.string
);
399 tmp
= pdb_get_profile_path(samu
);
401 info3
->base
.profile_path
.string
= talloc_strdup(info3
, tmp
);
402 RET_NOMEM(info3
->base
.profile_path
.string
);
404 tmp
= pdb_get_homedir(samu
);
406 info3
->base
.home_directory
.string
= talloc_strdup(info3
, tmp
);
407 RET_NOMEM(info3
->base
.home_directory
.string
);
409 tmp
= pdb_get_dir_drive(samu
);
411 info3
->base
.home_drive
.string
= talloc_strdup(info3
, tmp
);
412 RET_NOMEM(info3
->base
.home_drive
.string
);
415 info3
->base
.logon_count
= pdb_get_logon_count(samu
);
416 info3
->base
.bad_password_count
= pdb_get_bad_password_count(samu
);
418 info3
->base
.logon_domain
.string
= talloc_strdup(info3
,
419 pdb_get_domain(samu
));
420 RET_NOMEM(info3
->base
.logon_domain
.string
);
422 info3
->base
.domain_sid
= dom_sid_dup(info3
, &domain_sid
);
423 RET_NOMEM(info3
->base
.domain_sid
);
425 status
= pdb_enum_group_memberships(mem_ctx
, samu
,
428 if (!NT_STATUS_IS_OK(status
)) {
429 DEBUG(1, ("Failed to get groups from sam account.\n"));
434 if (num_group_sids
) {
435 status
= group_sids_to_info3(info3
, group_sids
, num_group_sids
);
436 if (!NT_STATUS_IS_OK(status
)) {
442 /* We don't need sids and gids after the conversion */
443 TALLOC_FREE(group_sids
);
447 /* FIXME: should we add other flags ? */
448 info3
->base
.user_flags
= NETLOGON_EXTRA_SIDS
;
451 info3
->base
.logon_server
.string
= talloc_strdup(info3
, login_server
);
452 RET_NOMEM(info3
->base
.logon_server
.string
);
455 info3
->base
.acct_flags
= pdb_get_acct_ctrl(samu
);
463 #define RET_NOMEM(ptr) do { \
465 TALLOC_FREE(info3); \
469 struct netr_SamInfo3
*copy_netr_SamInfo3(TALLOC_CTX
*mem_ctx
,
470 struct netr_SamInfo3
*orig
)
472 struct netr_SamInfo3
*info3
;
476 info3
= talloc_zero(mem_ctx
, struct netr_SamInfo3
);
477 if (!info3
) return NULL
;
479 status
= copy_netr_SamBaseInfo(info3
, &orig
->base
, &info3
->base
);
480 if (!NT_STATUS_IS_OK(status
)) {
485 if (orig
->sidcount
) {
486 info3
->sidcount
= orig
->sidcount
;
487 info3
->sids
= talloc_array(info3
, struct netr_SidAttr
,
489 RET_NOMEM(info3
->sids
);
490 for (i
= 0; i
< orig
->sidcount
; i
++) {
491 info3
->sids
[i
].sid
= dom_sid_dup(info3
->sids
,
493 RET_NOMEM(info3
->sids
[i
].sid
);
494 info3
->sids
[i
].attributes
=
495 orig
->sids
[i
].attributes
;
502 static NTSTATUS
wbcsids_to_samr_RidWithAttributeArray(
504 struct samr_RidWithAttributeArray
*groups
,
505 const struct dom_sid
*domain_sid
,
506 const struct wbcSidWithAttr
*sids
,
509 unsigned int i
, j
= 0;
512 groups
->rids
= talloc_array(mem_ctx
,
513 struct samr_RidWithAttribute
, num_sids
);
515 return NT_STATUS_NO_MEMORY
;
518 /* a wbcDomainSid is the same as a dom_sid */
519 for (i
= 0; i
< num_sids
; i
++) {
520 ok
= sid_peek_check_rid(domain_sid
,
521 (const struct dom_sid
*)&sids
[i
].sid
,
522 &groups
->rids
[j
].rid
);
525 groups
->rids
[j
].attributes
= SE_GROUP_MANDATORY
|
526 SE_GROUP_ENABLED_BY_DEFAULT
|
535 static NTSTATUS
wbcsids_to_netr_SidAttrArray(
536 const struct dom_sid
*domain_sid
,
537 const struct wbcSidWithAttr
*sids
,
540 struct netr_SidAttr
**_info3_sids
,
541 uint32_t *info3_num_sids
)
543 unsigned int i
, j
= 0;
544 struct netr_SidAttr
*info3_sids
;
546 info3_sids
= talloc_array(mem_ctx
, struct netr_SidAttr
, num_sids
);
547 if (info3_sids
== NULL
) {
548 return NT_STATUS_NO_MEMORY
;
551 /* a wbcDomainSid is the same as a dom_sid */
552 for (i
= 0; i
< num_sids
; i
++) {
553 const struct dom_sid
*sid
;
555 sid
= (const struct dom_sid
*)&sids
[i
].sid
;
557 if (dom_sid_in_domain(domain_sid
, sid
)) {
561 info3_sids
[j
].sid
= dom_sid_dup(info3_sids
, sid
);
562 if (info3_sids
[j
].sid
== NULL
) {
563 talloc_free(info3_sids
);
564 return NT_STATUS_NO_MEMORY
;
566 info3_sids
[j
].attributes
= SE_GROUP_MANDATORY
|
567 SE_GROUP_ENABLED_BY_DEFAULT
|
573 *_info3_sids
= info3_sids
;
577 struct netr_SamInfo3
*wbcAuthUserInfo_to_netr_SamInfo3(TALLOC_CTX
*mem_ctx
,
578 const struct wbcAuthUserInfo
*info
)
580 struct netr_SamInfo3
*info3
;
581 struct dom_sid user_sid
;
582 struct dom_sid group_sid
;
583 struct dom_sid domain_sid
;
587 memcpy(&user_sid
, &info
->sids
[0].sid
, sizeof(user_sid
));
588 memcpy(&group_sid
, &info
->sids
[1].sid
, sizeof(group_sid
));
590 info3
= talloc_zero(mem_ctx
, struct netr_SamInfo3
);
591 if (!info3
) return NULL
;
593 info3
->base
.logon_time
= info
->logon_time
;
594 info3
->base
.logoff_time
= info
->logoff_time
;
595 info3
->base
.kickoff_time
= info
->kickoff_time
;
596 unix_to_nt_time(&info3
->base
.last_password_change
, info
->pass_last_set_time
);
597 unix_to_nt_time(&info3
->base
.allow_password_change
,
598 info
->pass_can_change_time
);
599 unix_to_nt_time(&info3
->base
.force_password_change
,
600 info
->pass_must_change_time
);
602 if (info
->account_name
) {
603 info3
->base
.account_name
.string
=
604 talloc_strdup(info3
, info
->account_name
);
605 RET_NOMEM(info3
->base
.account_name
.string
);
607 if (info
->full_name
) {
608 info3
->base
.full_name
.string
=
609 talloc_strdup(info3
, info
->full_name
);
610 RET_NOMEM(info3
->base
.full_name
.string
);
612 if (info
->logon_script
) {
613 info3
->base
.logon_script
.string
=
614 talloc_strdup(info3
, info
->logon_script
);
615 RET_NOMEM(info3
->base
.logon_script
.string
);
617 if (info
->profile_path
) {
618 info3
->base
.profile_path
.string
=
619 talloc_strdup(info3
, info
->profile_path
);
620 RET_NOMEM(info3
->base
.profile_path
.string
);
622 if (info
->home_directory
) {
623 info3
->base
.home_directory
.string
=
624 talloc_strdup(info3
, info
->home_directory
);
625 RET_NOMEM(info3
->base
.home_directory
.string
);
627 if (info
->home_drive
) {
628 info3
->base
.home_drive
.string
=
629 talloc_strdup(info3
, info
->home_drive
);
630 RET_NOMEM(info3
->base
.home_drive
.string
);
633 info3
->base
.logon_count
= info
->logon_count
;
634 info3
->base
.bad_password_count
= info
->bad_password_count
;
636 sid_copy(&domain_sid
, &user_sid
);
637 sid_split_rid(&domain_sid
, &info3
->base
.rid
);
639 ok
= sid_peek_check_rid(&domain_sid
, &group_sid
,
640 &info3
->base
.primary_gid
);
642 DEBUG(1, ("The primary group sid domain does not"
643 "match user sid domain for user: %s\n",
644 info
->account_name
));
649 status
= wbcsids_to_samr_RidWithAttributeArray(info3
,
654 if (!NT_STATUS_IS_OK(status
)) {
659 status
= wbcsids_to_netr_SidAttrArray(&domain_sid
,
665 if (!NT_STATUS_IS_OK(status
)) {
670 info3
->base
.user_flags
= info
->user_flags
;
671 memcpy(info3
->base
.key
.key
, info
->user_session_key
, 16);
673 if (info
->logon_server
) {
674 info3
->base
.logon_server
.string
=
675 talloc_strdup(info3
, info
->logon_server
);
676 RET_NOMEM(info3
->base
.logon_server
.string
);
678 if (info
->domain_name
) {
679 info3
->base
.logon_domain
.string
=
680 talloc_strdup(info3
, info
->domain_name
);
681 RET_NOMEM(info3
->base
.logon_domain
.string
);
684 info3
->base
.domain_sid
= dom_sid_dup(info3
, &domain_sid
);
685 RET_NOMEM(info3
->base
.domain_sid
);
687 memcpy(info3
->base
.LMSessKey
.key
, info
->lm_session_key
, 8);
688 info3
->base
.acct_flags
= info
->acct_flags
;