socket_wrapper: fix compiler warnings
[Samba/gbeck.git] / source3 / auth / server_info.c
blobe218ca9f7f3a3d82674f05f0e00d8c0d33d2a361
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 "../lib/crypto/arcfour.h"
22 #include "../librpc/gen_ndr/netlogon.h"
23 #include "../libcli/security/security.h"
24 #include "rpc_client/util_netlogon.h"
26 #undef DBGC_CLASS
27 #define DBGC_CLASS DBGC_AUTH
29 /* FIXME: do we really still need this ? */
30 static int server_info_dtor(struct auth_serversupplied_info *server_info)
32 TALLOC_FREE(server_info->info3);
33 ZERO_STRUCTP(server_info);
34 return 0;
37 /***************************************************************************
38 Make a server_info struct. Free with TALLOC_FREE().
39 ***************************************************************************/
41 struct auth_serversupplied_info *make_server_info(TALLOC_CTX *mem_ctx)
43 struct auth_serversupplied_info *result;
45 result = TALLOC_ZERO_P(mem_ctx, struct auth_serversupplied_info);
46 if (result == NULL) {
47 DEBUG(0, ("talloc failed\n"));
48 return NULL;
51 talloc_set_destructor(result, server_info_dtor);
53 /* Initialise the uid and gid values to something non-zero
54 which may save us from giving away root access if there
55 is a bug in allocating these fields. */
57 result->utok.uid = -1;
58 result->utok.gid = -1;
60 return result;
63 /****************************************************************************
64 inits a netr_SamInfo2 structure from an auth_serversupplied_info. sam2 must
65 already be initialized and is used as the talloc parent for its members.
66 *****************************************************************************/
68 NTSTATUS serverinfo_to_SamInfo2(struct auth_serversupplied_info *server_info,
69 uint8_t *pipe_session_key,
70 size_t pipe_session_key_len,
71 struct netr_SamInfo2 *sam2)
73 struct netr_SamInfo3 *info3;
75 info3 = copy_netr_SamInfo3(sam2, server_info->info3);
76 if (!info3) {
77 return NT_STATUS_NO_MEMORY;
80 if (server_info->user_session_key.length) {
81 memcpy(info3->base.key.key,
82 server_info->user_session_key.data,
83 MIN(sizeof(info3->base.key.key),
84 server_info->user_session_key.length));
85 if (pipe_session_key) {
86 arcfour_crypt(info3->base.key.key,
87 pipe_session_key, 16);
90 if (server_info->lm_session_key.length) {
91 memcpy(info3->base.LMSessKey.key,
92 server_info->lm_session_key.data,
93 MIN(sizeof(info3->base.LMSessKey.key),
94 server_info->lm_session_key.length));
95 if (pipe_session_key) {
96 arcfour_crypt(info3->base.LMSessKey.key,
97 pipe_session_key, 8);
101 sam2->base = info3->base;
103 return NT_STATUS_OK;
106 /****************************************************************************
107 inits a netr_SamInfo3 structure from an auth_serversupplied_info. sam3 must
108 already be initialized and is used as the talloc parent for its members.
109 *****************************************************************************/
111 NTSTATUS serverinfo_to_SamInfo3(const struct auth_serversupplied_info *server_info,
112 uint8_t *pipe_session_key,
113 size_t pipe_session_key_len,
114 struct netr_SamInfo3 *sam3)
116 struct netr_SamInfo3 *info3;
118 info3 = copy_netr_SamInfo3(sam3, server_info->info3);
119 if (!info3) {
120 return NT_STATUS_NO_MEMORY;
123 if (server_info->user_session_key.length) {
124 memcpy(info3->base.key.key,
125 server_info->user_session_key.data,
126 MIN(sizeof(info3->base.key.key),
127 server_info->user_session_key.length));
128 if (pipe_session_key) {
129 arcfour_crypt(info3->base.key.key,
130 pipe_session_key, 16);
133 if (server_info->lm_session_key.length) {
134 memcpy(info3->base.LMSessKey.key,
135 server_info->lm_session_key.data,
136 MIN(sizeof(info3->base.LMSessKey.key),
137 server_info->lm_session_key.length));
138 if (pipe_session_key) {
139 arcfour_crypt(info3->base.LMSessKey.key,
140 pipe_session_key, 8);
144 sam3->base = info3->base;
146 sam3->sidcount = 0;
147 sam3->sids = NULL;
149 return NT_STATUS_OK;
152 /****************************************************************************
153 inits a netr_SamInfo6 structure from an auth_serversupplied_info. sam6 must
154 already be initialized and is used as the talloc parent for its members.
155 *****************************************************************************/
157 NTSTATUS serverinfo_to_SamInfo6(struct auth_serversupplied_info *server_info,
158 uint8_t *pipe_session_key,
159 size_t pipe_session_key_len,
160 struct netr_SamInfo6 *sam6)
162 struct pdb_domain_info *dominfo;
163 struct netr_SamInfo3 *info3;
165 if ((pdb_capabilities() & PDB_CAP_ADS) == 0) {
166 DEBUG(10,("Not adding validation info level 6 "
167 "without ADS passdb backend\n"));
168 return NT_STATUS_INVALID_INFO_CLASS;
171 dominfo = pdb_get_domain_info(sam6);
172 if (dominfo == NULL) {
173 return NT_STATUS_NO_MEMORY;
176 info3 = copy_netr_SamInfo3(sam6, server_info->info3);
177 if (!info3) {
178 return NT_STATUS_NO_MEMORY;
181 if (server_info->user_session_key.length) {
182 memcpy(info3->base.key.key,
183 server_info->user_session_key.data,
184 MIN(sizeof(info3->base.key.key),
185 server_info->user_session_key.length));
186 if (pipe_session_key) {
187 arcfour_crypt(info3->base.key.key,
188 pipe_session_key, 16);
191 if (server_info->lm_session_key.length) {
192 memcpy(info3->base.LMSessKey.key,
193 server_info->lm_session_key.data,
194 MIN(sizeof(info3->base.LMSessKey.key),
195 server_info->lm_session_key.length));
196 if (pipe_session_key) {
197 arcfour_crypt(info3->base.LMSessKey.key,
198 pipe_session_key, 8);
202 sam6->base = info3->base;
204 sam6->sidcount = 0;
205 sam6->sids = NULL;
207 sam6->dns_domainname.string = talloc_strdup(sam6, dominfo->dns_domain);
208 if (sam6->dns_domainname.string == NULL) {
209 return NT_STATUS_NO_MEMORY;
212 sam6->principle.string = talloc_asprintf(sam6, "%s@%s",
213 sam6->base.account_name.string,
214 sam6->dns_domainname.string);
215 if (sam6->principle.string == NULL) {
216 return NT_STATUS_NO_MEMORY;
219 return NT_STATUS_OK;
222 static NTSTATUS append_netr_SidAttr(TALLOC_CTX *mem_ctx,
223 struct netr_SidAttr **sids,
224 uint32_t *count,
225 const struct dom_sid2 *asid,
226 uint32_t attributes)
228 uint32_t t = *count;
230 *sids = talloc_realloc(mem_ctx, *sids, struct netr_SidAttr, t + 1);
231 if (*sids == NULL) {
232 return NT_STATUS_NO_MEMORY;
234 (*sids)[t].sid = dom_sid_dup(*sids, asid);
235 if ((*sids)[t].sid == NULL) {
236 return NT_STATUS_NO_MEMORY;
238 (*sids)[t].attributes = attributes;
239 *count = t + 1;
241 return NT_STATUS_OK;
244 /* Fills the samr_RidWithAttributeArray with the provided sids.
245 * If it happens that we have additional groups that do not belong
246 * to the domain, add their sids as extra sids */
247 static NTSTATUS group_sids_to_info3(struct netr_SamInfo3 *info3,
248 const struct dom_sid *sids,
249 size_t num_sids)
251 uint32_t attributes = SE_GROUP_MANDATORY |
252 SE_GROUP_ENABLED_BY_DEFAULT |
253 SE_GROUP_ENABLED;
254 struct samr_RidWithAttributeArray *groups;
255 struct dom_sid *domain_sid;
256 unsigned int i;
257 NTSTATUS status;
258 uint32_t rid;
259 bool ok;
261 domain_sid = info3->base.domain_sid;
262 groups = &info3->base.groups;
264 groups->rids = talloc_array(info3,
265 struct samr_RidWithAttribute, num_sids);
266 if (!groups->rids) {
267 return NT_STATUS_NO_MEMORY;
270 for (i = 0; i < num_sids; i++) {
271 ok = sid_peek_check_rid(domain_sid, &sids[i], &rid);
272 if (ok) {
274 /* if it is the primary gid, skip it, we
275 * obviously already have it */
276 if (info3->base.primary_gid == rid) continue;
278 /* store domain group rid */
279 groups->rids[i].rid = rid;
280 groups->rids[i].attributes = attributes;
281 groups->count++;
282 continue;
285 /* if this wasn't a domain sid, add it as extra sid */
286 status = append_netr_SidAttr(info3, &info3->sids,
287 &info3->sidcount,
288 &sids[i], attributes);
289 if (!NT_STATUS_IS_OK(status)) {
290 return status;
294 return NT_STATUS_OK;
297 #define RET_NOMEM(ptr) do { \
298 if (!ptr) { \
299 TALLOC_FREE(info3); \
300 return NT_STATUS_NO_MEMORY; \
301 } } while(0)
303 NTSTATUS samu_to_SamInfo3(TALLOC_CTX *mem_ctx,
304 struct samu *samu,
305 const char *login_server,
306 struct netr_SamInfo3 **_info3,
307 struct extra_auth_info *extra)
309 struct netr_SamInfo3 *info3;
310 const struct dom_sid *user_sid;
311 const struct dom_sid *group_sid;
312 struct dom_sid domain_sid;
313 struct dom_sid *group_sids;
314 uint32_t num_group_sids = 0;
315 const char *tmp;
316 gid_t *gids;
317 NTSTATUS status;
318 bool ok;
320 user_sid = pdb_get_user_sid(samu);
321 group_sid = pdb_get_group_sid(samu);
323 if (!user_sid || !group_sid) {
324 DEBUG(1, ("Sam account is missing sids!\n"));
325 return NT_STATUS_UNSUCCESSFUL;
328 info3 = talloc_zero(mem_ctx, struct netr_SamInfo3);
329 if (!info3) {
330 return NT_STATUS_NO_MEMORY;
333 ZERO_STRUCT(domain_sid);
335 /* check if this is a "Unix Users" domain user,
336 * we need to handle it in a special way if that's the case */
337 if (sid_check_is_in_unix_users(user_sid)) {
338 /* in info3 you can only set rids for the user and the
339 * primary group, and the domain sid must be that of
340 * the sam domain.
342 * Store a completely bogus value here.
343 * The real SID is stored in the extra sids.
344 * Other code will know to look there if (-1) is found
346 info3->base.rid = (uint32_t)(-1);
347 sid_copy(&extra->user_sid, user_sid);
349 DEBUG(10, ("Unix User found in struct samu. Rid marked as "
350 "special and sid (%s) saved as extra sid\n",
351 sid_string_dbg(user_sid)));
352 } else {
353 sid_copy(&domain_sid, user_sid);
354 sid_split_rid(&domain_sid, &info3->base.rid);
357 if (is_null_sid(&domain_sid)) {
358 sid_copy(&domain_sid, get_global_sam_sid());
361 /* check if this is a "Unix Groups" domain group,
362 * if so we need special handling */
363 if (sid_check_is_in_unix_groups(group_sid)) {
364 /* in info3 you can only set rids for the user and the
365 * primary group, and the domain sid must be that of
366 * the sam domain.
368 * Store a completely bogus value here.
369 * The real SID is stored in the extra sids.
370 * Other code will know to look there if (-1) is found
372 info3->base.primary_gid = (uint32_t)(-1);
373 sid_copy(&extra->pgid_sid, group_sid);
375 DEBUG(10, ("Unix Group found in struct samu. Rid marked as "
376 "special and sid (%s) saved as extra sid\n",
377 sid_string_dbg(group_sid)));
379 } else {
380 ok = sid_peek_check_rid(&domain_sid, group_sid,
381 &info3->base.primary_gid);
382 if (!ok) {
383 DEBUG(1, ("The primary group domain sid(%s) does not "
384 "match the domain sid(%s) for %s(%s)\n",
385 sid_string_dbg(group_sid),
386 sid_string_dbg(&domain_sid),
387 pdb_get_username(samu),
388 sid_string_dbg(user_sid)));
389 TALLOC_FREE(info3);
390 return NT_STATUS_UNSUCCESSFUL;
394 unix_to_nt_time(&info3->base.last_logon, pdb_get_logon_time(samu));
395 unix_to_nt_time(&info3->base.last_logoff, get_time_t_max());
396 unix_to_nt_time(&info3->base.acct_expiry, get_time_t_max());
397 unix_to_nt_time(&info3->base.last_password_change,
398 pdb_get_pass_last_set_time(samu));
399 unix_to_nt_time(&info3->base.allow_password_change,
400 pdb_get_pass_can_change_time(samu));
401 unix_to_nt_time(&info3->base.force_password_change,
402 pdb_get_pass_must_change_time(samu));
404 tmp = pdb_get_username(samu);
405 if (tmp) {
406 info3->base.account_name.string = talloc_strdup(info3, tmp);
407 RET_NOMEM(info3->base.account_name.string);
409 tmp = pdb_get_fullname(samu);
410 if (tmp) {
411 info3->base.full_name.string = talloc_strdup(info3, tmp);
412 RET_NOMEM(info3->base.full_name.string);
414 tmp = pdb_get_logon_script(samu);
415 if (tmp) {
416 info3->base.logon_script.string = talloc_strdup(info3, tmp);
417 RET_NOMEM(info3->base.logon_script.string);
419 tmp = pdb_get_profile_path(samu);
420 if (tmp) {
421 info3->base.profile_path.string = talloc_strdup(info3, tmp);
422 RET_NOMEM(info3->base.profile_path.string);
424 tmp = pdb_get_homedir(samu);
425 if (tmp) {
426 info3->base.home_directory.string = talloc_strdup(info3, tmp);
427 RET_NOMEM(info3->base.home_directory.string);
429 tmp = pdb_get_dir_drive(samu);
430 if (tmp) {
431 info3->base.home_drive.string = talloc_strdup(info3, tmp);
432 RET_NOMEM(info3->base.home_drive.string);
435 info3->base.logon_count = pdb_get_logon_count(samu);
436 info3->base.bad_password_count = pdb_get_bad_password_count(samu);
438 status = pdb_enum_group_memberships(mem_ctx, samu,
439 &group_sids, &gids,
440 &num_group_sids);
441 if (!NT_STATUS_IS_OK(status)) {
442 DEBUG(1, ("Failed to get groups from sam account.\n"));
443 TALLOC_FREE(info3);
444 return status;
447 if (num_group_sids) {
448 status = group_sids_to_info3(info3, group_sids, num_group_sids);
449 if (!NT_STATUS_IS_OK(status)) {
450 TALLOC_FREE(info3);
451 return status;
455 /* We don't need sids and gids after the conversion */
456 TALLOC_FREE(group_sids);
457 TALLOC_FREE(gids);
458 num_group_sids = 0;
460 /* FIXME: should we add other flags ? */
461 info3->base.user_flags = NETLOGON_EXTRA_SIDS;
463 if (login_server) {
464 info3->base.logon_server.string = talloc_strdup(info3, login_server);
465 RET_NOMEM(info3->base.logon_server.string);
468 info3->base.domain.string = talloc_strdup(info3,
469 pdb_get_domain(samu));
470 RET_NOMEM(info3->base.domain.string);
472 info3->base.domain_sid = dom_sid_dup(info3, &domain_sid);
473 RET_NOMEM(info3->base.domain_sid);
475 info3->base.acct_flags = pdb_get_acct_ctrl(samu);
477 *_info3 = info3;
478 return NT_STATUS_OK;
481 #undef RET_NOMEM
483 #define RET_NOMEM(ptr) do { \
484 if (!ptr) { \
485 TALLOC_FREE(info3); \
486 return NULL; \
487 } } while(0)
489 struct netr_SamInfo3 *copy_netr_SamInfo3(TALLOC_CTX *mem_ctx,
490 struct netr_SamInfo3 *orig)
492 struct netr_SamInfo3 *info3;
493 unsigned int i;
494 NTSTATUS status;
496 info3 = talloc_zero(mem_ctx, struct netr_SamInfo3);
497 if (!info3) return NULL;
499 status = copy_netr_SamBaseInfo(info3, &orig->base, &info3->base);
500 if (!NT_STATUS_IS_OK(status)) {
501 TALLOC_FREE(info3);
502 return NULL;
505 if (orig->sidcount) {
506 info3->sidcount = orig->sidcount;
507 info3->sids = talloc_array(info3, struct netr_SidAttr,
508 orig->sidcount);
509 RET_NOMEM(info3->sids);
510 for (i = 0; i < orig->sidcount; i++) {
511 info3->sids[i].sid = dom_sid_dup(info3->sids,
512 orig->sids[i].sid);
513 RET_NOMEM(info3->sids[i].sid);
514 info3->sids[i].attributes =
515 orig->sids[i].attributes;
519 return info3;
522 static NTSTATUS wbcsids_to_samr_RidWithAttributeArray(
523 TALLOC_CTX *mem_ctx,
524 struct samr_RidWithAttributeArray *groups,
525 const struct dom_sid *domain_sid,
526 const struct wbcSidWithAttr *sids,
527 size_t num_sids)
529 unsigned int i;
530 bool ok;
532 groups->rids = talloc_array(mem_ctx,
533 struct samr_RidWithAttribute, num_sids);
534 if (!groups->rids) {
535 return NT_STATUS_NO_MEMORY;
538 /* a wbcDomainSid is the same as a dom_sid */
539 for (i = 0; i < num_sids; i++) {
540 ok = sid_peek_check_rid(domain_sid,
541 (const struct dom_sid *)&sids[i].sid,
542 &groups->rids[i].rid);
543 if (!ok) continue;
545 groups->rids[i].attributes = SE_GROUP_MANDATORY |
546 SE_GROUP_ENABLED_BY_DEFAULT |
547 SE_GROUP_ENABLED;
548 groups->count++;
551 return NT_STATUS_OK;
554 struct netr_SamInfo3 *wbcAuthUserInfo_to_netr_SamInfo3(TALLOC_CTX *mem_ctx,
555 const struct wbcAuthUserInfo *info)
557 struct netr_SamInfo3 *info3;
558 struct dom_sid user_sid;
559 struct dom_sid group_sid;
560 struct dom_sid domain_sid;
561 NTSTATUS status;
562 bool ok;
564 memcpy(&user_sid, &info->sids[0].sid, sizeof(user_sid));
565 memcpy(&group_sid, &info->sids[1].sid, sizeof(group_sid));
567 info3 = talloc_zero(mem_ctx, struct netr_SamInfo3);
568 if (!info3) return NULL;
570 info3->base.last_logon = info->logon_time;
571 info3->base.last_logoff = info->logoff_time;
572 info3->base.acct_expiry = info->kickoff_time;
573 unix_to_nt_time(&info3->base.last_password_change, info->pass_last_set_time);
574 unix_to_nt_time(&info3->base.allow_password_change,
575 info->pass_can_change_time);
576 unix_to_nt_time(&info3->base.force_password_change,
577 info->pass_must_change_time);
579 if (info->account_name) {
580 info3->base.account_name.string =
581 talloc_strdup(info3, info->account_name);
582 RET_NOMEM(info3->base.account_name.string);
584 if (info->full_name) {
585 info3->base.full_name.string =
586 talloc_strdup(info3, info->full_name);
587 RET_NOMEM(info3->base.full_name.string);
589 if (info->logon_script) {
590 info3->base.logon_script.string =
591 talloc_strdup(info3, info->logon_script);
592 RET_NOMEM(info3->base.logon_script.string);
594 if (info->profile_path) {
595 info3->base.profile_path.string =
596 talloc_strdup(info3, info->profile_path);
597 RET_NOMEM(info3->base.profile_path.string);
599 if (info->home_directory) {
600 info3->base.home_directory.string =
601 talloc_strdup(info3, info->home_directory);
602 RET_NOMEM(info3->base.home_directory.string);
604 if (info->home_drive) {
605 info3->base.home_drive.string =
606 talloc_strdup(info3, info->home_drive);
607 RET_NOMEM(info3->base.home_drive.string);
610 info3->base.logon_count = info->logon_count;
611 info3->base.bad_password_count = info->bad_password_count;
613 sid_copy(&domain_sid, &user_sid);
614 sid_split_rid(&domain_sid, &info3->base.rid);
616 ok = sid_peek_check_rid(&domain_sid, &group_sid,
617 &info3->base.primary_gid);
618 if (!ok) {
619 DEBUG(1, ("The primary group sid domain does not"
620 "match user sid domain for user: %s\n",
621 info->account_name));
622 TALLOC_FREE(info3);
623 return NULL;
626 status = wbcsids_to_samr_RidWithAttributeArray(info3,
627 &info3->base.groups,
628 &domain_sid,
629 &info->sids[1],
630 info->num_sids - 1);
631 if (!NT_STATUS_IS_OK(status)) {
632 TALLOC_FREE(info3);
633 return NULL;
636 info3->base.user_flags = info->user_flags;
637 memcpy(info3->base.key.key, info->user_session_key, 16);
639 if (info->logon_server) {
640 info3->base.logon_server.string =
641 talloc_strdup(info3, info->logon_server);
642 RET_NOMEM(info3->base.logon_server.string);
644 if (info->domain_name) {
645 info3->base.domain.string =
646 talloc_strdup(info3, info->domain_name);
647 RET_NOMEM(info3->base.domain.string);
650 info3->base.domain_sid = dom_sid_dup(info3, &domain_sid);
651 RET_NOMEM(info3->base.domain_sid);
653 memcpy(info3->base.LMSessKey.key, info->lm_session_key, 8);
654 info3->base.acct_flags = info->acct_flags;
656 return info3;