build: Remove unused deps from vfs modules
[Samba/bb.git] / source3 / auth / server_info.c
blob216e5e32d7d0c4c34436e5ed811db1cf98471bab
1 /*
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/>.
20 #include "includes.h"
21 #include "auth.h"
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"
27 #include "passdb.h"
29 #undef DBGC_CLASS
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);
41 if (result == NULL) {
42 DEBUG(0, ("talloc failed\n"));
43 return NULL;
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;
53 return result;
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);
69 if (!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,
90 pipe_session_key, 8);
94 sam2->base = info3->base;
96 return NT_STATUS_OK;
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);
112 if (!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;
139 sam3->sidcount = 0;
140 sam3->sids = NULL;
142 return NT_STATUS_OK;
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);
170 if (!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));
179 if (pipe_session_key) {
180 arcfour_crypt(info3->base.key.key,
181 pipe_session_key, 16);
184 if (server_info->lm_session_key.length) {
185 memcpy(info3->base.LMSessKey.key,
186 server_info->lm_session_key.data,
187 MIN(sizeof(info3->base.LMSessKey.key),
188 server_info->lm_session_key.length));
189 if (pipe_session_key) {
190 arcfour_crypt(info3->base.LMSessKey.key,
191 pipe_session_key, 8);
195 sam6->base = info3->base;
197 sam6->sidcount = 0;
198 sam6->sids = NULL;
200 sam6->dns_domainname.string = talloc_strdup(sam6, dominfo->dns_domain);
201 if (sam6->dns_domainname.string == NULL) {
202 return NT_STATUS_NO_MEMORY;
205 sam6->principle.string = talloc_asprintf(sam6, "%s@%s",
206 sam6->base.account_name.string,
207 sam6->dns_domainname.string);
208 if (sam6->principle.string == NULL) {
209 return NT_STATUS_NO_MEMORY;
212 return NT_STATUS_OK;
215 static NTSTATUS append_netr_SidAttr(TALLOC_CTX *mem_ctx,
216 struct netr_SidAttr **sids,
217 uint32_t *count,
218 const struct dom_sid2 *asid,
219 uint32_t attributes)
221 uint32_t t = *count;
223 *sids = talloc_realloc(mem_ctx, *sids, struct netr_SidAttr, t + 1);
224 if (*sids == NULL) {
225 return NT_STATUS_NO_MEMORY;
227 (*sids)[t].sid = dom_sid_dup(*sids, asid);
228 if ((*sids)[t].sid == NULL) {
229 return NT_STATUS_NO_MEMORY;
231 (*sids)[t].attributes = attributes;
232 *count = t + 1;
234 return NT_STATUS_OK;
237 /* Fills the samr_RidWithAttributeArray with the provided sids.
238 * If it happens that we have additional groups that do not belong
239 * to the domain, add their sids as extra sids */
240 static NTSTATUS group_sids_to_info3(struct netr_SamInfo3 *info3,
241 const struct dom_sid *sids,
242 size_t num_sids)
244 uint32_t attributes = SE_GROUP_MANDATORY |
245 SE_GROUP_ENABLED_BY_DEFAULT |
246 SE_GROUP_ENABLED;
247 struct samr_RidWithAttributeArray *groups;
248 struct dom_sid *domain_sid;
249 unsigned int i;
250 NTSTATUS status;
251 uint32_t rid;
252 bool ok;
254 domain_sid = info3->base.domain_sid;
255 groups = &info3->base.groups;
257 groups->rids = talloc_array(info3,
258 struct samr_RidWithAttribute, num_sids);
259 if (!groups->rids) {
260 return NT_STATUS_NO_MEMORY;
263 for (i = 0; i < num_sids; i++) {
264 ok = sid_peek_check_rid(domain_sid, &sids[i], &rid);
265 if (ok) {
266 /* store domain group rid */
267 groups->rids[groups->count].rid = rid;
268 groups->rids[groups->count].attributes = attributes;
269 groups->count++;
270 continue;
273 /* if this wasn't a domain sid, add it as extra sid */
274 status = append_netr_SidAttr(info3, &info3->sids,
275 &info3->sidcount,
276 &sids[i], attributes);
277 if (!NT_STATUS_IS_OK(status)) {
278 return status;
282 return NT_STATUS_OK;
285 #define RET_NOMEM(ptr) do { \
286 if (!ptr) { \
287 TALLOC_FREE(info3); \
288 return NT_STATUS_NO_MEMORY; \
289 } } while(0)
291 NTSTATUS samu_to_SamInfo3(TALLOC_CTX *mem_ctx,
292 struct samu *samu,
293 const char *login_server,
294 struct netr_SamInfo3 **_info3,
295 struct extra_auth_info *extra)
297 struct netr_SamInfo3 *info3;
298 const struct dom_sid *user_sid;
299 const struct dom_sid *group_sid;
300 struct dom_sid domain_sid;
301 struct dom_sid *group_sids;
302 uint32_t num_group_sids = 0;
303 const char *tmp;
304 gid_t *gids;
305 NTSTATUS status;
306 bool ok;
308 user_sid = pdb_get_user_sid(samu);
309 group_sid = pdb_get_group_sid(samu);
311 if (!user_sid || !group_sid) {
312 DEBUG(1, ("Sam account is missing sids!\n"));
313 return NT_STATUS_UNSUCCESSFUL;
316 info3 = talloc_zero(mem_ctx, struct netr_SamInfo3);
317 if (!info3) {
318 return NT_STATUS_NO_MEMORY;
321 ZERO_STRUCT(domain_sid);
323 /* check if this is a "Unix Users" domain user,
324 * we need to handle it in a special way if that's the case */
325 if (sid_check_is_in_unix_users(user_sid)) {
326 /* in info3 you can only set rids for the user and the
327 * primary group, and the domain sid must be that of
328 * the sam domain.
330 * Store a completely bogus value here.
331 * The real SID is stored in the extra sids.
332 * Other code will know to look there if (-1) is found
334 info3->base.rid = (uint32_t)(-1);
335 sid_copy(&extra->user_sid, user_sid);
337 DEBUG(10, ("Unix User found in struct samu. Rid marked as "
338 "special and sid (%s) saved as extra sid\n",
339 sid_string_dbg(user_sid)));
340 } else {
341 sid_copy(&domain_sid, user_sid);
342 sid_split_rid(&domain_sid, &info3->base.rid);
345 if (is_null_sid(&domain_sid)) {
346 sid_copy(&domain_sid, get_global_sam_sid());
349 /* check if this is a "Unix Groups" domain group,
350 * if so we need special handling */
351 if (sid_check_is_in_unix_groups(group_sid)) {
352 /* in info3 you can only set rids for the user and the
353 * primary group, and the domain sid must be that of
354 * the sam domain.
356 * Store a completely bogus value here.
357 * The real SID is stored in the extra sids.
358 * Other code will know to look there if (-1) is found
360 info3->base.primary_gid = (uint32_t)(-1);
361 sid_copy(&extra->pgid_sid, group_sid);
363 DEBUG(10, ("Unix Group found in struct samu. Rid marked as "
364 "special and sid (%s) saved as extra sid\n",
365 sid_string_dbg(group_sid)));
367 } else {
368 ok = sid_peek_check_rid(&domain_sid, group_sid,
369 &info3->base.primary_gid);
370 if (!ok) {
371 DEBUG(1, ("The primary group domain sid(%s) does not "
372 "match the domain sid(%s) for %s(%s)\n",
373 sid_string_dbg(group_sid),
374 sid_string_dbg(&domain_sid),
375 pdb_get_username(samu),
376 sid_string_dbg(user_sid)));
377 TALLOC_FREE(info3);
378 return NT_STATUS_UNSUCCESSFUL;
382 unix_to_nt_time(&info3->base.logon_time, pdb_get_logon_time(samu));
383 unix_to_nt_time(&info3->base.logoff_time, get_time_t_max());
384 unix_to_nt_time(&info3->base.kickoff_time, get_time_t_max());
385 unix_to_nt_time(&info3->base.last_password_change,
386 pdb_get_pass_last_set_time(samu));
387 unix_to_nt_time(&info3->base.allow_password_change,
388 pdb_get_pass_can_change_time(samu));
389 unix_to_nt_time(&info3->base.force_password_change,
390 pdb_get_pass_must_change_time(samu));
392 tmp = pdb_get_username(samu);
393 if (tmp) {
394 info3->base.account_name.string = talloc_strdup(info3, tmp);
395 RET_NOMEM(info3->base.account_name.string);
397 tmp = pdb_get_fullname(samu);
398 if (tmp) {
399 info3->base.full_name.string = talloc_strdup(info3, tmp);
400 RET_NOMEM(info3->base.full_name.string);
402 tmp = pdb_get_logon_script(samu);
403 if (tmp) {
404 info3->base.logon_script.string = talloc_strdup(info3, tmp);
405 RET_NOMEM(info3->base.logon_script.string);
407 tmp = pdb_get_profile_path(samu);
408 if (tmp) {
409 info3->base.profile_path.string = talloc_strdup(info3, tmp);
410 RET_NOMEM(info3->base.profile_path.string);
412 tmp = pdb_get_homedir(samu);
413 if (tmp) {
414 info3->base.home_directory.string = talloc_strdup(info3, tmp);
415 RET_NOMEM(info3->base.home_directory.string);
417 tmp = pdb_get_dir_drive(samu);
418 if (tmp) {
419 info3->base.home_drive.string = talloc_strdup(info3, tmp);
420 RET_NOMEM(info3->base.home_drive.string);
423 info3->base.logon_count = pdb_get_logon_count(samu);
424 info3->base.bad_password_count = pdb_get_bad_password_count(samu);
426 info3->base.logon_domain.string = talloc_strdup(info3,
427 pdb_get_domain(samu));
428 RET_NOMEM(info3->base.logon_domain.string);
430 info3->base.domain_sid = dom_sid_dup(info3, &domain_sid);
431 RET_NOMEM(info3->base.domain_sid);
433 status = pdb_enum_group_memberships(mem_ctx, samu,
434 &group_sids, &gids,
435 &num_group_sids);
436 if (!NT_STATUS_IS_OK(status)) {
437 DEBUG(1, ("Failed to get groups from sam account.\n"));
438 TALLOC_FREE(info3);
439 return status;
442 if (num_group_sids) {
443 status = group_sids_to_info3(info3, group_sids, num_group_sids);
444 if (!NT_STATUS_IS_OK(status)) {
445 TALLOC_FREE(info3);
446 return status;
450 /* We don't need sids and gids after the conversion */
451 TALLOC_FREE(group_sids);
452 TALLOC_FREE(gids);
453 num_group_sids = 0;
455 /* FIXME: should we add other flags ? */
456 info3->base.user_flags = NETLOGON_EXTRA_SIDS;
458 if (login_server) {
459 info3->base.logon_server.string = talloc_strdup(info3, login_server);
460 RET_NOMEM(info3->base.logon_server.string);
463 info3->base.acct_flags = pdb_get_acct_ctrl(samu);
465 *_info3 = info3;
466 return NT_STATUS_OK;
469 #undef RET_NOMEM
471 #define RET_NOMEM(ptr) do { \
472 if (!ptr) { \
473 TALLOC_FREE(info3); \
474 return NULL; \
475 } } while(0)
477 struct netr_SamInfo3 *copy_netr_SamInfo3(TALLOC_CTX *mem_ctx,
478 struct netr_SamInfo3 *orig)
480 struct netr_SamInfo3 *info3;
481 unsigned int i;
482 NTSTATUS status;
484 info3 = talloc_zero(mem_ctx, struct netr_SamInfo3);
485 if (!info3) return NULL;
487 status = copy_netr_SamBaseInfo(info3, &orig->base, &info3->base);
488 if (!NT_STATUS_IS_OK(status)) {
489 TALLOC_FREE(info3);
490 return NULL;
493 if (orig->sidcount) {
494 info3->sidcount = orig->sidcount;
495 info3->sids = talloc_array(info3, struct netr_SidAttr,
496 orig->sidcount);
497 RET_NOMEM(info3->sids);
498 for (i = 0; i < orig->sidcount; i++) {
499 info3->sids[i].sid = dom_sid_dup(info3->sids,
500 orig->sids[i].sid);
501 RET_NOMEM(info3->sids[i].sid);
502 info3->sids[i].attributes =
503 orig->sids[i].attributes;
507 return info3;
510 static NTSTATUS wbcsids_to_samr_RidWithAttributeArray(
511 TALLOC_CTX *mem_ctx,
512 struct samr_RidWithAttributeArray *groups,
513 const struct dom_sid *domain_sid,
514 const struct wbcSidWithAttr *sids,
515 size_t num_sids)
517 unsigned int i, j = 0;
518 bool ok;
520 groups->rids = talloc_array(mem_ctx,
521 struct samr_RidWithAttribute, num_sids);
522 if (!groups->rids) {
523 return NT_STATUS_NO_MEMORY;
526 /* a wbcDomainSid is the same as a dom_sid */
527 for (i = 0; i < num_sids; i++) {
528 ok = sid_peek_check_rid(domain_sid,
529 (const struct dom_sid *)&sids[i].sid,
530 &groups->rids[j].rid);
531 if (!ok) continue;
533 groups->rids[j].attributes = SE_GROUP_MANDATORY |
534 SE_GROUP_ENABLED_BY_DEFAULT |
535 SE_GROUP_ENABLED;
536 j++;
539 groups->count = j;
540 return NT_STATUS_OK;
543 static NTSTATUS wbcsids_to_netr_SidAttrArray(
544 const struct dom_sid *domain_sid,
545 const struct wbcSidWithAttr *sids,
546 size_t num_sids,
547 TALLOC_CTX *mem_ctx,
548 struct netr_SidAttr **_info3_sids,
549 uint32_t *info3_num_sids)
551 unsigned int i, j = 0;
552 struct netr_SidAttr *info3_sids;
554 info3_sids = talloc_array(mem_ctx, struct netr_SidAttr, num_sids);
555 if (info3_sids == NULL) {
556 return NT_STATUS_NO_MEMORY;
559 /* a wbcDomainSid is the same as a dom_sid */
560 for (i = 0; i < num_sids; i++) {
561 const struct dom_sid *sid;
563 sid = (const struct dom_sid *)&sids[i].sid;
565 if (dom_sid_in_domain(domain_sid, sid)) {
566 continue;
569 info3_sids[j].sid = dom_sid_dup(info3_sids, sid);
570 if (info3_sids[j].sid == NULL) {
571 talloc_free(info3_sids);
572 return NT_STATUS_NO_MEMORY;
574 info3_sids[j].attributes = SE_GROUP_MANDATORY |
575 SE_GROUP_ENABLED_BY_DEFAULT |
576 SE_GROUP_ENABLED;
577 j++;
580 *info3_num_sids = j;
581 *_info3_sids = info3_sids;
582 return NT_STATUS_OK;
585 struct netr_SamInfo3 *wbcAuthUserInfo_to_netr_SamInfo3(TALLOC_CTX *mem_ctx,
586 const struct wbcAuthUserInfo *info)
588 struct netr_SamInfo3 *info3;
589 struct dom_sid user_sid;
590 struct dom_sid group_sid;
591 struct dom_sid domain_sid;
592 NTSTATUS status;
593 bool ok;
595 memcpy(&user_sid, &info->sids[0].sid, sizeof(user_sid));
596 memcpy(&group_sid, &info->sids[1].sid, sizeof(group_sid));
598 info3 = talloc_zero(mem_ctx, struct netr_SamInfo3);
599 if (!info3) return NULL;
601 info3->base.logon_time = info->logon_time;
602 info3->base.logoff_time = info->logoff_time;
603 info3->base.kickoff_time = info->kickoff_time;
604 unix_to_nt_time(&info3->base.last_password_change, info->pass_last_set_time);
605 unix_to_nt_time(&info3->base.allow_password_change,
606 info->pass_can_change_time);
607 unix_to_nt_time(&info3->base.force_password_change,
608 info->pass_must_change_time);
610 if (info->account_name) {
611 info3->base.account_name.string =
612 talloc_strdup(info3, info->account_name);
613 RET_NOMEM(info3->base.account_name.string);
615 if (info->full_name) {
616 info3->base.full_name.string =
617 talloc_strdup(info3, info->full_name);
618 RET_NOMEM(info3->base.full_name.string);
620 if (info->logon_script) {
621 info3->base.logon_script.string =
622 talloc_strdup(info3, info->logon_script);
623 RET_NOMEM(info3->base.logon_script.string);
625 if (info->profile_path) {
626 info3->base.profile_path.string =
627 talloc_strdup(info3, info->profile_path);
628 RET_NOMEM(info3->base.profile_path.string);
630 if (info->home_directory) {
631 info3->base.home_directory.string =
632 talloc_strdup(info3, info->home_directory);
633 RET_NOMEM(info3->base.home_directory.string);
635 if (info->home_drive) {
636 info3->base.home_drive.string =
637 talloc_strdup(info3, info->home_drive);
638 RET_NOMEM(info3->base.home_drive.string);
641 info3->base.logon_count = info->logon_count;
642 info3->base.bad_password_count = info->bad_password_count;
644 sid_copy(&domain_sid, &user_sid);
645 sid_split_rid(&domain_sid, &info3->base.rid);
647 ok = sid_peek_check_rid(&domain_sid, &group_sid,
648 &info3->base.primary_gid);
649 if (!ok) {
650 DEBUG(1, ("The primary group sid domain does not"
651 "match user sid domain for user: %s\n",
652 info->account_name));
653 TALLOC_FREE(info3);
654 return NULL;
657 status = wbcsids_to_samr_RidWithAttributeArray(info3,
658 &info3->base.groups,
659 &domain_sid,
660 &info->sids[1],
661 info->num_sids - 1);
662 if (!NT_STATUS_IS_OK(status)) {
663 TALLOC_FREE(info3);
664 return NULL;
667 status = wbcsids_to_netr_SidAttrArray(&domain_sid,
668 &info->sids[1],
669 info->num_sids - 1,
670 info3,
671 &info3->sids,
672 &info3->sidcount);
673 if (!NT_STATUS_IS_OK(status)) {
674 TALLOC_FREE(info3);
675 return NULL;
678 info3->base.user_flags = info->user_flags;
679 memcpy(info3->base.key.key, info->user_session_key, 16);
681 if (info->logon_server) {
682 info3->base.logon_server.string =
683 talloc_strdup(info3, info->logon_server);
684 RET_NOMEM(info3->base.logon_server.string);
686 if (info->domain_name) {
687 info3->base.logon_domain.string =
688 talloc_strdup(info3, info->domain_name);
689 RET_NOMEM(info3->base.logon_domain.string);
692 info3->base.domain_sid = dom_sid_dup(info3, &domain_sid);
693 RET_NOMEM(info3->base.domain_sid);
695 memcpy(info3->base.LMSessKey.key, info->lm_session_key, 8);
696 info3->base.acct_flags = info->acct_flags;
698 return info3;