2 Unix SMB/CIFS implementation.
4 Winbind daemon - pam auth funcions
6 Copyright (C) Andrew Tridgell 2000
7 Copyright (C) Tim Potter 2001
8 Copyright (C) Andrew Bartlett 2001-2002
9 Copyright (C) Guenther Deschner 2005
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program. If not, see <http://www.gnu.org/licenses/>.
27 #include "../libcli/auth/libcli_auth.h"
28 #include "../librpc/gen_ndr/cli_samr.h"
29 #include "rpc_client/cli_samr.h"
30 #include "../librpc/gen_ndr/ndr_netlogon.h"
31 #include "rpc_client/cli_netlogon.h"
33 #include "../lib/crypto/arcfour.h"
34 #include "../libcli/security/dom_sid.h"
36 #include "../librpc/gen_ndr/krb5pac.h"
39 #define DBGC_CLASS DBGC_WINBIND
41 #define LOGON_KRB5_FAIL_CLOCK_SKEW 0x02000000
43 static NTSTATUS append_info3_as_txt(TALLOC_CTX *mem_ctx,
44 struct winbindd_cli_state *state,
45 struct netr_SamInfo3 *info3)
50 state->response->data.auth.info3.logon_time =
51 nt_time_to_unix(info3->base.last_logon);
52 state->response->data.auth.info3.logoff_time =
53 nt_time_to_unix(info3->base.last_logoff);
54 state->response->data.auth.info3.kickoff_time =
55 nt_time_to_unix(info3->base.acct_expiry);
56 state->response->data.auth.info3.pass_last_set_time =
57 nt_time_to_unix(info3->base.last_password_change);
58 state->response->data.auth.info3.pass_can_change_time =
59 nt_time_to_unix(info3->base.allow_password_change);
60 state->response->data.auth.info3.pass_must_change_time =
61 nt_time_to_unix(info3->base.force_password_change);
63 state->response->data.auth.info3.logon_count = info3->base.logon_count;
64 state->response->data.auth.info3.bad_pw_count = info3->base.bad_password_count;
66 state->response->data.auth.info3.user_rid = info3->base.rid;
67 state->response->data.auth.info3.group_rid = info3->base.primary_gid;
68 sid_to_fstring(state->response->data.auth.info3.dom_sid, info3->base.domain_sid);
70 state->response->data.auth.info3.num_groups = info3->base.groups.count;
71 state->response->data.auth.info3.user_flgs = info3->base.user_flags;
73 state->response->data.auth.info3.acct_flags = info3->base.acct_flags;
74 state->response->data.auth.info3.num_other_sids = info3->sidcount;
76 fstrcpy(state->response->data.auth.info3.user_name,
77 info3->base.account_name.string);
78 fstrcpy(state->response->data.auth.info3.full_name,
79 info3->base.full_name.string);
80 fstrcpy(state->response->data.auth.info3.logon_script,
81 info3->base.logon_script.string);
82 fstrcpy(state->response->data.auth.info3.profile_path,
83 info3->base.profile_path.string);
84 fstrcpy(state->response->data.auth.info3.home_dir,
85 info3->base.home_directory.string);
86 fstrcpy(state->response->data.auth.info3.dir_drive,
87 info3->base.home_drive.string);
89 fstrcpy(state->response->data.auth.info3.logon_srv,
90 info3->base.logon_server.string);
91 fstrcpy(state->response->data.auth.info3.logon_dom,
92 info3->base.domain.string);
94 ex = talloc_strdup(state->mem_ctx, "");
95 NT_STATUS_HAVE_NO_MEMORY(ex);
97 for (i=0; i < info3->base.groups.count; i++) {
98 ex = talloc_asprintf_append_buffer(ex, "0x%08X:0x%08X\n",
99 info3->base.groups.rids[i].rid,
100 info3->base.groups.rids[i].attributes);
101 NT_STATUS_HAVE_NO_MEMORY(ex);
104 for (i=0; i < info3->sidcount; i++) {
107 sid = dom_sid_string(mem_ctx, info3->sids[i].sid);
108 NT_STATUS_HAVE_NO_MEMORY(sid);
110 ex = talloc_asprintf_append_buffer(ex, "%s:0x%08X\n",
112 info3->sids[i].attributes);
113 NT_STATUS_HAVE_NO_MEMORY(ex);
118 state->response->extra_data.data = ex;
119 state->response->length += talloc_get_size(ex);
124 static NTSTATUS append_info3_as_ndr(TALLOC_CTX *mem_ctx,
125 struct winbindd_cli_state *state,
126 struct netr_SamInfo3 *info3)
129 enum ndr_err_code ndr_err;
131 ndr_err = ndr_push_struct_blob(&blob, mem_ctx, info3,
132 (ndr_push_flags_fn_t)ndr_push_netr_SamInfo3);
133 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
134 DEBUG(0,("append_info3_as_ndr: failed to append\n"));
135 return ndr_map_error2ntstatus(ndr_err);
138 state->response->extra_data.data = blob.data;
139 state->response->length += blob.length;
144 static NTSTATUS append_unix_username(TALLOC_CTX *mem_ctx,
145 struct winbindd_cli_state *state,
146 const struct netr_SamInfo3 *info3,
147 const char *name_domain,
148 const char *name_user)
150 /* We've been asked to return the unix username, per
151 'winbind use default domain' settings and the like */
153 const char *nt_username, *nt_domain;
155 nt_domain = talloc_strdup(mem_ctx, info3->base.domain.string);
157 /* If the server didn't give us one, just use the one
159 nt_domain = name_domain;
162 nt_username = talloc_strdup(mem_ctx, info3->base.account_name.string);
164 /* If the server didn't give us one, just use the one
166 nt_username = name_user;
169 fill_domain_username(state->response->data.auth.unix_username,
170 nt_domain, nt_username, true);
172 DEBUG(5,("Setting unix username to [%s]\n",
173 state->response->data.auth.unix_username));
178 static NTSTATUS append_afs_token(TALLOC_CTX *mem_ctx,
179 struct winbindd_cli_state *state,
180 const struct netr_SamInfo3 *info3,
181 const char *name_domain,
182 const char *name_user)
184 char *afsname = NULL;
188 afsname = talloc_strdup(mem_ctx, lp_afs_username_map());
189 if (afsname == NULL) {
190 return NT_STATUS_NO_MEMORY;
193 afsname = talloc_string_sub(mem_ctx,
194 lp_afs_username_map(),
196 afsname = talloc_string_sub(mem_ctx, afsname,
198 afsname = talloc_string_sub(mem_ctx, afsname,
202 struct dom_sid user_sid;
205 sid_compose(&user_sid, info3->base.domain_sid,
207 sid_to_fstring(sidstr, &user_sid);
208 afsname = talloc_string_sub(mem_ctx, afsname,
212 if (afsname == NULL) {
213 return NT_STATUS_NO_MEMORY;
218 DEBUG(10, ("Generating token for user %s\n", afsname));
220 cell = strchr(afsname, '@');
223 return NT_STATUS_NO_MEMORY;
229 token = afs_createtoken_str(afsname, cell);
233 state->response->extra_data.data = talloc_strdup(state->mem_ctx,
235 if (state->response->extra_data.data == NULL) {
236 return NT_STATUS_NO_MEMORY;
238 state->response->length +=
239 strlen((const char *)state->response->extra_data.data)+1;
244 static NTSTATUS check_info3_in_group(struct netr_SamInfo3 *info3,
245 const char *group_sid)
247 * Check whether a user belongs to a group or list of groups.
249 * @param mem_ctx talloc memory context.
250 * @param info3 user information, including group membership info.
251 * @param group_sid One or more groups , separated by commas.
253 * @return NT_STATUS_OK on success,
254 * NT_STATUS_LOGON_FAILURE if the user does not belong,
255 * or other NT_STATUS_IS_ERR(status) for other kinds of failure.
258 struct dom_sid *require_membership_of_sid;
259 uint32_t num_require_membership_of_sid;
264 struct nt_user_token *token;
265 TALLOC_CTX *frame = talloc_stackframe();
268 /* Parse the 'required group' SID */
270 if (!group_sid || !group_sid[0]) {
271 /* NO sid supplied, all users may access */
275 token = talloc_zero(talloc_tos(), struct nt_user_token);
277 DEBUG(0, ("talloc failed\n"));
279 return NT_STATUS_NO_MEMORY;
282 num_require_membership_of_sid = 0;
283 require_membership_of_sid = NULL;
287 while (next_token_talloc(talloc_tos(), &p, &req_sid, ",")) {
288 if (!string_to_sid(&sid, req_sid)) {
289 DEBUG(0, ("check_info3_in_group: could not parse %s "
290 "as a SID!", req_sid));
292 return NT_STATUS_INVALID_PARAMETER;
295 status = add_sid_to_array(talloc_tos(), &sid,
296 &require_membership_of_sid,
297 &num_require_membership_of_sid);
298 if (!NT_STATUS_IS_OK(status)) {
299 DEBUG(0, ("add_sid_to_array failed\n"));
305 status = sid_array_from_info3(talloc_tos(), info3,
309 if (!NT_STATUS_IS_OK(status)) {
314 if (!NT_STATUS_IS_OK(status = add_aliases(get_global_sam_sid(),
316 || !NT_STATUS_IS_OK(status = add_aliases(&global_sid_Builtin,
318 DEBUG(3, ("could not add aliases: %s\n",
324 debug_nt_user_token(DBGC_CLASS, 10, token);
326 for (i=0; i<num_require_membership_of_sid; i++) {
327 DEBUG(10, ("Checking SID %s\n", sid_string_dbg(
328 &require_membership_of_sid[i])));
329 if (nt_token_check_sid(&require_membership_of_sid[i],
331 DEBUG(10, ("Access ok\n"));
337 /* Do not distinguish this error from a wrong username/pw */
340 return NT_STATUS_LOGON_FAILURE;
343 struct winbindd_domain *find_auth_domain(uint8_t flags,
344 const char *domain_name)
346 struct winbindd_domain *domain;
349 domain = find_domain_from_name_noinit(domain_name);
350 if (domain == NULL) {
351 DEBUG(3, ("Authentication for domain [%s] refused "
352 "as it is not a trusted domain\n",
358 if (strequal(domain_name, get_global_sam_name())) {
359 return find_domain_from_name_noinit(domain_name);
362 /* we can auth against trusted domains */
363 if (flags & WBFLAG_PAM_CONTACT_TRUSTDOM) {
364 domain = find_domain_from_name_noinit(domain_name);
365 if (domain == NULL) {
366 DEBUG(3, ("Authentication for domain [%s] skipped "
367 "as it is not a trusted domain\n",
374 return find_our_domain();
377 static void fill_in_password_policy(struct winbindd_response *r,
378 const struct samr_DomInfo1 *p)
380 r->data.auth.policy.min_length_password =
381 p->min_password_length;
382 r->data.auth.policy.password_history =
383 p->password_history_length;
384 r->data.auth.policy.password_properties =
385 p->password_properties;
386 r->data.auth.policy.expire =
387 nt_time_to_unix_abs((NTTIME *)&(p->max_password_age));
388 r->data.auth.policy.min_passwordage =
389 nt_time_to_unix_abs((NTTIME *)&(p->min_password_age));
392 static NTSTATUS fillup_password_policy(struct winbindd_domain *domain,
393 struct winbindd_cli_state *state)
395 struct winbindd_methods *methods;
396 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
397 struct samr_DomInfo1 password_policy;
399 if ( !winbindd_can_contact_domain( domain ) ) {
400 DEBUG(5,("fillup_password_policy: No inbound trust to "
401 "contact domain %s\n", domain->name));
402 return NT_STATUS_NOT_SUPPORTED;
405 methods = domain->methods;
407 status = methods->password_policy(domain, state->mem_ctx, &password_policy);
408 if (NT_STATUS_IS_ERR(status)) {
412 fill_in_password_policy(state->response, &password_policy);
417 static NTSTATUS get_max_bad_attempts_from_lockout_policy(struct winbindd_domain *domain,
419 uint16 *lockout_threshold)
421 struct winbindd_methods *methods;
422 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
423 struct samr_DomInfo12 lockout_policy;
425 *lockout_threshold = 0;
427 methods = domain->methods;
429 status = methods->lockout_policy(domain, mem_ctx, &lockout_policy);
430 if (NT_STATUS_IS_ERR(status)) {
434 *lockout_threshold = lockout_policy.lockout_threshold;
439 static NTSTATUS get_pwd_properties(struct winbindd_domain *domain,
441 uint32 *password_properties)
443 struct winbindd_methods *methods;
444 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
445 struct samr_DomInfo1 password_policy;
447 *password_properties = 0;
449 methods = domain->methods;
451 status = methods->password_policy(domain, mem_ctx, &password_policy);
452 if (NT_STATUS_IS_ERR(status)) {
456 *password_properties = password_policy.password_properties;
463 static const char *generate_krb5_ccache(TALLOC_CTX *mem_ctx,
466 bool *internal_ccache)
468 /* accept FILE and WRFILE as krb5_cc_type from the client and then
469 * build the full ccname string based on the user's uid here -
472 const char *gen_cc = NULL;
474 *internal_ccache = true;
480 if (!type || type[0] == '\0') {
484 if (strequal(type, "FILE")) {
485 gen_cc = talloc_asprintf(mem_ctx, "FILE:/tmp/krb5cc_%d", uid);
486 } else if (strequal(type, "WRFILE")) {
487 gen_cc = talloc_asprintf(mem_ctx, "WRFILE:/tmp/krb5cc_%d", uid);
489 DEBUG(10,("we don't allow to set a %s type ccache\n", type));
493 *internal_ccache = false;
497 gen_cc = talloc_strdup(mem_ctx, "MEMORY:winbindd_pam_ccache");
500 if (gen_cc == NULL) {
501 DEBUG(0,("out of memory\n"));
505 DEBUG(10,("using ccache: %s %s\n", gen_cc, *internal_ccache ? "(internal)":""));
510 static void setup_return_cc_name(struct winbindd_cli_state *state, const char *cc)
512 const char *type = state->request->data.auth.krb5_cc_type;
514 state->response->data.auth.krb5ccname[0] = '\0';
516 if (type[0] == '\0') {
520 if (!strequal(type, "FILE") &&
521 !strequal(type, "WRFILE")) {
522 DEBUG(10,("won't return krbccname for a %s type ccache\n",
527 fstrcpy(state->response->data.auth.krb5ccname, cc);
532 uid_t get_uid_from_request(struct winbindd_request *request)
536 uid = request->data.auth.uid;
539 DEBUG(1,("invalid uid: '%u'\n", (unsigned int)uid));
545 static uid_t get_uid_from_state(struct winbindd_cli_state *state)
547 return get_uid_from_request(state->request);
550 /**********************************************************************
551 Authenticate a user with a clear text password using Kerberos and fill up
553 **********************************************************************/
555 static NTSTATUS winbindd_raw_kerberos_login(struct winbindd_domain *domain,
556 struct winbindd_cli_state *state,
557 struct netr_SamInfo3 **info3)
560 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
561 krb5_error_code krb5_ret;
562 const char *cc = NULL;
563 const char *principal_s = NULL;
564 const char *service = NULL;
566 fstring name_domain, name_user;
567 time_t ticket_lifetime = 0;
568 time_t renewal_until = 0;
571 time_t time_offset = 0;
572 bool internal_ccache = true;
573 struct PAC_LOGON_INFO *logon_info = NULL;
578 * prepare a krb5_cc_cache string for the user */
580 uid = get_uid_from_state(state);
582 DEBUG(0,("no valid uid\n"));
585 cc = generate_krb5_ccache(state->mem_ctx,
586 state->request->data.auth.krb5_cc_type,
587 state->request->data.auth.uid,
590 return NT_STATUS_NO_MEMORY;
595 * get kerberos properties */
597 if (domain->private_data) {
598 ads = (ADS_STRUCT *)domain->private_data;
599 time_offset = ads->auth.time_offset;
604 * do kerberos auth and setup ccache as the user */
606 parse_domain_user(state->request->data.auth.user, name_domain, name_user);
608 realm = domain->alt_name;
611 principal_s = talloc_asprintf(state->mem_ctx, "%s@%s", name_user, realm);
612 if (principal_s == NULL) {
613 return NT_STATUS_NO_MEMORY;
616 service = talloc_asprintf(state->mem_ctx, "%s/%s@%s", KRB5_TGS_NAME, realm, realm);
617 if (service == NULL) {
618 return NT_STATUS_NO_MEMORY;
621 /* if this is a user ccache, we need to act as the user to let the krb5
622 * library handle the chown, etc. */
624 /************************ ENTERING NON-ROOT **********************/
626 if (!internal_ccache) {
627 set_effective_uid(uid);
628 DEBUG(10,("winbindd_raw_kerberos_login: uid is %d\n", uid));
631 result = kerberos_return_pac(state->mem_ctx,
633 state->request->data.auth.pass,
640 WINBINDD_PAM_AUTH_KRB5_RENEW_TIME,
643 if (!internal_ccache) {
644 gain_root_privilege();
647 /************************ RETURNED TO ROOT **********************/
649 if (!NT_STATUS_IS_OK(result)) {
653 *info3 = &logon_info->info3;
655 DEBUG(10,("winbindd_raw_kerberos_login: winbindd validated ticket of %s\n",
658 /* if we had a user's ccache then return that string for the pam
661 if (!internal_ccache) {
663 setup_return_cc_name(state, cc);
665 result = add_ccache_to_list(principal_s,
668 state->request->data.auth.user,
676 if (!NT_STATUS_IS_OK(result)) {
677 DEBUG(10,("winbindd_raw_kerberos_login: failed to add ccache to list: %s\n",
682 /* need to delete the memory cred cache, it is not used anymore */
684 krb5_ret = ads_kdestroy(cc);
686 DEBUG(3,("winbindd_raw_kerberos_login: "
687 "could not destroy krb5 credential cache: "
688 "%s\n", error_message(krb5_ret)));
697 /* we could have created a new credential cache with a valid tgt in it
698 * but we werent able to get or verify the service ticket for this
699 * local host and therefor didn't get the PAC, we need to remove that
700 * cache entirely now */
702 krb5_ret = ads_kdestroy(cc);
704 DEBUG(3,("winbindd_raw_kerberos_login: "
705 "could not destroy krb5 credential cache: "
706 "%s\n", error_message(krb5_ret)));
709 if (!NT_STATUS_IS_OK(remove_ccache(state->request->data.auth.user))) {
710 DEBUG(3,("winbindd_raw_kerberos_login: "
711 "could not remove ccache for user %s\n",
712 state->request->data.auth.user));
717 return NT_STATUS_NOT_SUPPORTED;
718 #endif /* HAVE_KRB5 */
721 /****************************************************************
722 ****************************************************************/
724 bool check_request_flags(uint32_t flags)
726 uint32_t flags_edata = WBFLAG_PAM_AFS_TOKEN |
727 WBFLAG_PAM_INFO3_TEXT |
728 WBFLAG_PAM_INFO3_NDR;
730 if ( ( (flags & flags_edata) == WBFLAG_PAM_AFS_TOKEN) ||
731 ( (flags & flags_edata) == WBFLAG_PAM_INFO3_NDR) ||
732 ( (flags & flags_edata) == WBFLAG_PAM_INFO3_TEXT)||
733 !(flags & flags_edata) ) {
737 DEBUG(1, ("check_request_flags: invalid request flags[0x%08X]\n",
743 /****************************************************************
744 ****************************************************************/
746 static NTSTATUS append_auth_data(struct winbindd_cli_state *state,
747 struct netr_SamInfo3 *info3,
748 const char *name_domain,
749 const char *name_user)
752 uint32_t flags = state->request->flags;
754 if (flags & WBFLAG_PAM_USER_SESSION_KEY) {
755 memcpy(state->response->data.auth.user_session_key,
757 sizeof(state->response->data.auth.user_session_key)
761 if (flags & WBFLAG_PAM_LMKEY) {
762 memcpy(state->response->data.auth.first_8_lm_hash,
763 info3->base.LMSessKey.key,
764 sizeof(state->response->data.auth.first_8_lm_hash)
768 if (flags & WBFLAG_PAM_UNIX_NAME) {
769 result = append_unix_username(state->mem_ctx, state, info3,
770 name_domain, name_user);
771 if (!NT_STATUS_IS_OK(result)) {
772 DEBUG(10,("Failed to append Unix Username: %s\n",
778 /* currently, anything from here on potentially overwrites extra_data. */
780 if (flags & WBFLAG_PAM_INFO3_NDR) {
781 result = append_info3_as_ndr(state->mem_ctx, state, info3);
782 if (!NT_STATUS_IS_OK(result)) {
783 DEBUG(10,("Failed to append INFO3 (NDR): %s\n",
789 if (flags & WBFLAG_PAM_INFO3_TEXT) {
790 result = append_info3_as_txt(state->mem_ctx, state, info3);
791 if (!NT_STATUS_IS_OK(result)) {
792 DEBUG(10,("Failed to append INFO3 (TXT): %s\n",
798 if (flags & WBFLAG_PAM_AFS_TOKEN) {
799 result = append_afs_token(state->mem_ctx, state, info3,
800 name_domain, name_user);
801 if (!NT_STATUS_IS_OK(result)) {
802 DEBUG(10,("Failed to append AFS token: %s\n",
811 static NTSTATUS winbindd_dual_pam_auth_cached(struct winbindd_domain *domain,
812 struct winbindd_cli_state *state,
813 struct netr_SamInfo3 **info3)
815 NTSTATUS result = NT_STATUS_LOGON_FAILURE;
816 uint16 max_allowed_bad_attempts;
817 fstring name_domain, name_user;
819 enum lsa_SidType type;
820 uchar new_nt_pass[NT_HASH_LEN];
821 const uint8 *cached_nt_pass;
822 const uint8 *cached_salt;
823 struct netr_SamInfo3 *my_info3;
824 time_t kickoff_time, must_change_time;
825 bool password_good = false;
827 struct winbindd_tdc_domain *tdc_domain = NULL;
834 DEBUG(10,("winbindd_dual_pam_auth_cached\n"));
836 /* Parse domain and username */
838 parse_domain_user(state->request->data.auth.user, name_domain, name_user);
841 if (!lookup_cached_name(name_domain,
845 DEBUG(10,("winbindd_dual_pam_auth_cached: no such user in the cache\n"));
846 return NT_STATUS_NO_SUCH_USER;
849 if (type != SID_NAME_USER) {
850 DEBUG(10,("winbindd_dual_pam_auth_cached: not a user (%s)\n", sid_type_lookup(type)));
851 return NT_STATUS_LOGON_FAILURE;
854 result = winbindd_get_creds(domain,
860 if (!NT_STATUS_IS_OK(result)) {
861 DEBUG(10,("winbindd_dual_pam_auth_cached: failed to get creds: %s\n", nt_errstr(result)));
867 E_md4hash(state->request->data.auth.pass, new_nt_pass);
869 dump_data_pw("new_nt_pass", new_nt_pass, NT_HASH_LEN);
870 dump_data_pw("cached_nt_pass", cached_nt_pass, NT_HASH_LEN);
872 dump_data_pw("cached_salt", cached_salt, NT_HASH_LEN);
876 /* In this case we didn't store the nt_hash itself,
877 but the MD5 combination of salt + nt_hash. */
878 uchar salted_hash[NT_HASH_LEN];
879 E_md5hash(cached_salt, new_nt_pass, salted_hash);
881 password_good = (memcmp(cached_nt_pass, salted_hash,
884 /* Old cached cred - direct store of nt_hash (bad bad bad !). */
885 password_good = (memcmp(cached_nt_pass, new_nt_pass,
891 /* User *DOES* know the password, update logon_time and reset
894 my_info3->base.user_flags |= NETLOGON_CACHED_ACCOUNT;
896 if (my_info3->base.acct_flags & ACB_AUTOLOCK) {
897 return NT_STATUS_ACCOUNT_LOCKED_OUT;
900 if (my_info3->base.acct_flags & ACB_DISABLED) {
901 return NT_STATUS_ACCOUNT_DISABLED;
904 if (my_info3->base.acct_flags & ACB_WSTRUST) {
905 return NT_STATUS_NOLOGON_WORKSTATION_TRUST_ACCOUNT;
908 if (my_info3->base.acct_flags & ACB_SVRTRUST) {
909 return NT_STATUS_NOLOGON_SERVER_TRUST_ACCOUNT;
912 if (my_info3->base.acct_flags & ACB_DOMTRUST) {
913 return NT_STATUS_NOLOGON_INTERDOMAIN_TRUST_ACCOUNT;
916 if (!(my_info3->base.acct_flags & ACB_NORMAL)) {
917 DEBUG(0,("winbindd_dual_pam_auth_cached: whats wrong with that one?: 0x%08x\n",
918 my_info3->base.acct_flags));
919 return NT_STATUS_LOGON_FAILURE;
922 kickoff_time = nt_time_to_unix(my_info3->base.acct_expiry);
923 if (kickoff_time != 0 && time(NULL) > kickoff_time) {
924 return NT_STATUS_ACCOUNT_EXPIRED;
927 must_change_time = nt_time_to_unix(my_info3->base.force_password_change);
928 if (must_change_time != 0 && must_change_time < time(NULL)) {
929 /* we allow grace logons when the password has expired */
930 my_info3->base.user_flags |= NETLOGON_GRACE_LOGON;
931 /* return NT_STATUS_PASSWORD_EXPIRED; */
936 if ((state->request->flags & WBFLAG_PAM_KRB5) &&
937 ((tdc_domain = wcache_tdc_fetch_domain(state->mem_ctx, name_domain)) != NULL) &&
938 ((tdc_domain->trust_type & NETR_TRUST_TYPE_UPLEVEL) ||
939 /* used to cope with the case winbindd starting without network. */
940 !strequal(tdc_domain->domain_name, tdc_domain->dns_name))) {
943 const char *cc = NULL;
945 const char *principal_s = NULL;
946 const char *service = NULL;
947 bool internal_ccache = false;
949 uid = get_uid_from_state(state);
951 DEBUG(0,("winbindd_dual_pam_auth_cached: invalid uid\n"));
952 return NT_STATUS_INVALID_PARAMETER;
955 cc = generate_krb5_ccache(state->mem_ctx,
956 state->request->data.auth.krb5_cc_type,
957 state->request->data.auth.uid,
960 return NT_STATUS_NO_MEMORY;
963 realm = domain->alt_name;
966 principal_s = talloc_asprintf(state->mem_ctx, "%s@%s", name_user, realm);
967 if (principal_s == NULL) {
968 return NT_STATUS_NO_MEMORY;
971 service = talloc_asprintf(state->mem_ctx, "%s/%s@%s", KRB5_TGS_NAME, realm, realm);
972 if (service == NULL) {
973 return NT_STATUS_NO_MEMORY;
976 if (!internal_ccache) {
978 setup_return_cc_name(state, cc);
980 result = add_ccache_to_list(principal_s,
983 state->request->data.auth.user,
987 time(NULL) + lp_winbind_cache_time(),
988 time(NULL) + WINBINDD_PAM_AUTH_KRB5_RENEW_TIME,
991 if (!NT_STATUS_IS_OK(result)) {
992 DEBUG(10,("winbindd_dual_pam_auth_cached: failed "
993 "to add ccache to list: %s\n",
998 #endif /* HAVE_KRB5 */
1000 /* FIXME: we possibly should handle logon hours as well (does xp when
1001 * offline?) see auth/auth_sam.c:sam_account_ok for details */
1003 unix_to_nt_time(&my_info3->base.last_logon, time(NULL));
1004 my_info3->base.bad_password_count = 0;
1006 result = winbindd_update_creds_by_info3(domain,
1007 state->request->data.auth.user,
1008 state->request->data.auth.pass,
1010 if (!NT_STATUS_IS_OK(result)) {
1011 DEBUG(1,("winbindd_dual_pam_auth_cached: failed to update creds: %s\n",
1012 nt_errstr(result)));
1016 return NT_STATUS_OK;
1020 /* User does *NOT* know the correct password, modify info3 accordingly */
1022 /* failure of this is not critical */
1023 result = get_max_bad_attempts_from_lockout_policy(domain, state->mem_ctx, &max_allowed_bad_attempts);
1024 if (!NT_STATUS_IS_OK(result)) {
1025 DEBUG(10,("winbindd_dual_pam_auth_cached: failed to get max_allowed_bad_attempts. "
1026 "Won't be able to honour account lockout policies\n"));
1029 /* increase counter */
1030 my_info3->base.bad_password_count++;
1032 if (max_allowed_bad_attempts == 0) {
1037 if (my_info3->base.bad_password_count >= max_allowed_bad_attempts) {
1039 uint32 password_properties;
1041 result = get_pwd_properties(domain, state->mem_ctx, &password_properties);
1042 if (!NT_STATUS_IS_OK(result)) {
1043 DEBUG(10,("winbindd_dual_pam_auth_cached: failed to get password properties.\n"));
1046 if ((my_info3->base.rid != DOMAIN_RID_ADMINISTRATOR) ||
1047 (password_properties & DOMAIN_PASSWORD_LOCKOUT_ADMINS)) {
1048 my_info3->base.acct_flags |= ACB_AUTOLOCK;
1053 result = winbindd_update_creds_by_info3(domain,
1054 state->request->data.auth.user,
1058 if (!NT_STATUS_IS_OK(result)) {
1059 DEBUG(0,("winbindd_dual_pam_auth_cached: failed to update creds %s\n",
1060 nt_errstr(result)));
1063 return NT_STATUS_LOGON_FAILURE;
1066 static NTSTATUS winbindd_dual_pam_auth_kerberos(struct winbindd_domain *domain,
1067 struct winbindd_cli_state *state,
1068 struct netr_SamInfo3 **info3)
1070 struct winbindd_domain *contact_domain;
1071 fstring name_domain, name_user;
1074 DEBUG(10,("winbindd_dual_pam_auth_kerberos\n"));
1076 /* Parse domain and username */
1078 parse_domain_user(state->request->data.auth.user, name_domain, name_user);
1080 /* what domain should we contact? */
1083 if (!(contact_domain = find_domain_from_name(name_domain))) {
1084 DEBUG(3, ("Authentication for domain for [%s] -> [%s]\\[%s] failed as %s is not a trusted domain\n",
1085 state->request->data.auth.user, name_domain, name_user, name_domain));
1086 result = NT_STATUS_NO_SUCH_USER;
1091 if (is_myname(name_domain)) {
1092 DEBUG(3, ("Authentication for domain %s (local domain to this server) not supported at this stage\n", name_domain));
1093 result = NT_STATUS_NO_SUCH_USER;
1097 contact_domain = find_domain_from_name(name_domain);
1098 if (contact_domain == NULL) {
1099 DEBUG(3, ("Authentication for domain for [%s] -> [%s]\\[%s] failed as %s is not a trusted domain\n",
1100 state->request->data.auth.user, name_domain, name_user, name_domain));
1102 contact_domain = find_our_domain();
1106 if (contact_domain->initialized &&
1107 contact_domain->active_directory) {
1111 if (!contact_domain->initialized) {
1112 init_dc_connection(contact_domain);
1115 if (!contact_domain->active_directory) {
1116 DEBUG(3,("krb5 auth requested but domain is not Active Directory\n"));
1117 return NT_STATUS_INVALID_LOGON_TYPE;
1120 result = winbindd_raw_kerberos_login(contact_domain, state, info3);
1125 static NTSTATUS winbindd_dual_auth_passdb(TALLOC_CTX *mem_ctx,
1126 const char *domain, const char *user,
1127 const DATA_BLOB *challenge,
1128 const DATA_BLOB *lm_resp,
1129 const DATA_BLOB *nt_resp,
1130 struct netr_SamInfo3 **pinfo3)
1132 struct auth_usersupplied_info *user_info = NULL;
1135 status = make_user_info(&user_info, user, user, domain, domain,
1136 global_myname(), lm_resp, nt_resp, NULL, NULL,
1137 NULL, AUTH_PASSWORD_RESPONSE);
1138 if (!NT_STATUS_IS_OK(status)) {
1139 DEBUG(10, ("make_user_info failed: %s\n", nt_errstr(status)));
1143 /* We don't want any more mapping of the username */
1144 user_info->mapped_state = True;
1146 status = check_sam_security_info3(challenge, talloc_tos(), user_info,
1148 free_user_info(&user_info);
1149 DEBUG(10, ("Authenticated user %s\\%s successfully\n", domain, user));
1150 return NT_STATUS_OK;
1153 typedef NTSTATUS (*netlogon_fn_t)(struct rpc_pipe_client *cli,
1154 TALLOC_CTX *mem_ctx,
1155 uint32 logon_parameters,
1157 const char *username,
1159 const char *workstation,
1160 const uint8 chal[8],
1161 DATA_BLOB lm_response,
1162 DATA_BLOB nt_response,
1163 struct netr_SamInfo3 **info3);
1165 static NTSTATUS winbindd_dual_pam_auth_samlogon(struct winbindd_domain *domain,
1166 struct winbindd_cli_state *state,
1167 struct netr_SamInfo3 **info3)
1170 struct rpc_pipe_client *netlogon_pipe;
1175 unsigned char local_lm_response[24];
1176 unsigned char local_nt_response[24];
1177 fstring name_domain, name_user;
1180 struct netr_SamInfo3 *my_info3 = NULL;
1184 DEBUG(10,("winbindd_dual_pam_auth_samlogon\n"));
1186 /* Parse domain and username */
1188 parse_domain_user(state->request->data.auth.user, name_domain, name_user);
1190 /* do password magic */
1192 generate_random_buffer(chal, sizeof(chal));
1194 if (lp_client_ntlmv2_auth()) {
1195 DATA_BLOB server_chal;
1196 DATA_BLOB names_blob;
1197 DATA_BLOB nt_response;
1198 DATA_BLOB lm_response;
1199 server_chal = data_blob_talloc(state->mem_ctx, chal, 8);
1201 /* note that the 'workgroup' here is a best guess - we don't know
1202 the server's domain at this point. The 'server name' is also
1205 names_blob = NTLMv2_generate_names_blob(state->mem_ctx, global_myname(), lp_workgroup());
1207 if (!SMBNTLMv2encrypt(NULL, name_user, name_domain,
1208 state->request->data.auth.pass,
1211 &lm_response, &nt_response, NULL, NULL)) {
1212 data_blob_free(&names_blob);
1213 data_blob_free(&server_chal);
1214 DEBUG(0, ("winbindd_pam_auth: SMBNTLMv2encrypt() failed!\n"));
1215 result = NT_STATUS_NO_MEMORY;
1218 data_blob_free(&names_blob);
1219 data_blob_free(&server_chal);
1220 lm_resp = data_blob_talloc(state->mem_ctx, lm_response.data,
1221 lm_response.length);
1222 nt_resp = data_blob_talloc(state->mem_ctx, nt_response.data,
1223 nt_response.length);
1224 data_blob_free(&lm_response);
1225 data_blob_free(&nt_response);
1228 if (lp_client_lanman_auth()
1229 && SMBencrypt(state->request->data.auth.pass,
1231 local_lm_response)) {
1232 lm_resp = data_blob_talloc(state->mem_ctx,
1234 sizeof(local_lm_response));
1236 lm_resp = data_blob_null;
1238 SMBNTencrypt(state->request->data.auth.pass,
1242 nt_resp = data_blob_talloc(state->mem_ctx,
1244 sizeof(local_nt_response));
1247 if (strequal(name_domain, get_global_sam_name())) {
1248 DATA_BLOB chal_blob = data_blob_const(chal, sizeof(chal));
1250 result = winbindd_dual_auth_passdb(
1251 state->mem_ctx, name_domain, name_user,
1252 &chal_blob, &lm_resp, &nt_resp, info3);
1256 /* check authentication loop */
1259 netlogon_fn_t logon_fn;
1261 ZERO_STRUCTP(my_info3);
1264 result = cm_connect_netlogon(domain, &netlogon_pipe);
1266 if (!NT_STATUS_IS_OK(result)) {
1267 DEBUG(3, ("could not open handle to NETLOGON pipe\n"));
1271 /* It is really important to try SamLogonEx here,
1272 * because in a clustered environment, we want to use
1273 * one machine account from multiple physical
1276 * With a normal SamLogon call, we must keep the
1277 * credentials chain updated and intact between all
1278 * users of the machine account (which would imply
1279 * cross-node communication for every NTLM logon).
1281 * (The credentials chain is not per NETLOGON pipe
1282 * connection, but globally on the server/client pair
1285 * When using SamLogonEx, the credentials are not
1286 * supplied, but the session key is implied by the
1287 * wrapping SamLogon context.
1289 * -- abartlet 21 April 2008
1292 logon_fn = domain->can_do_samlogon_ex
1293 ? rpccli_netlogon_sam_network_logon_ex
1294 : rpccli_netlogon_sam_network_logon;
1296 result = logon_fn(netlogon_pipe,
1299 domain->dcname, /* server name */
1300 name_user, /* user name */
1301 name_domain, /* target domain */
1302 global_myname(), /* workstation */
1309 if ((NT_STATUS_V(result) == DCERPC_FAULT_OP_RNG_ERROR)
1310 && domain->can_do_samlogon_ex) {
1311 DEBUG(3, ("Got a DC that can not do NetSamLogonEx, "
1312 "retrying with NetSamLogon\n"));
1313 domain->can_do_samlogon_ex = false;
1318 /* We have to try a second time as cm_connect_netlogon
1319 might not yet have noticed that the DC has killed
1322 if (!rpccli_is_connected(netlogon_pipe)) {
1327 /* if we get access denied, a possible cause was that we had
1328 and open connection to the DC, but someone changed our
1329 machine account password out from underneath us using 'net
1330 rpc changetrustpw' */
1332 if ( NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED) ) {
1333 DEBUG(3,("winbindd_pam_auth: sam_logon returned "
1334 "ACCESS_DENIED. Maybe the trust account "
1335 "password was changed and we didn't know it. "
1336 "Killing connections to domain %s\n",
1338 invalidate_cm_connection(&domain->conn);
1342 } while ( (attempts < 2) && retry );
1344 /* handle the case where a NT4 DC does not fill in the acct_flags in
1345 * the samlogon reply info3. When accurate info3 is required by the
1346 * caller, we look up the account flags ourselve - gd */
1348 if ((state->request->flags & WBFLAG_PAM_INFO3_TEXT) &&
1349 NT_STATUS_IS_OK(result) && (my_info3->base.acct_flags == 0)) {
1351 struct rpc_pipe_client *samr_pipe;
1352 struct policy_handle samr_domain_handle, user_pol;
1353 union samr_UserInfo *info = NULL;
1354 NTSTATUS status_tmp;
1357 status_tmp = cm_connect_sam(domain, state->mem_ctx,
1358 &samr_pipe, &samr_domain_handle);
1360 if (!NT_STATUS_IS_OK(status_tmp)) {
1361 DEBUG(3, ("could not open handle to SAMR pipe: %s\n",
1362 nt_errstr(status_tmp)));
1366 status_tmp = rpccli_samr_OpenUser(samr_pipe, state->mem_ctx,
1367 &samr_domain_handle,
1368 MAXIMUM_ALLOWED_ACCESS,
1372 if (!NT_STATUS_IS_OK(status_tmp)) {
1373 DEBUG(3, ("could not open user handle on SAMR pipe: %s\n",
1374 nt_errstr(status_tmp)));
1378 status_tmp = rpccli_samr_QueryUserInfo(samr_pipe, state->mem_ctx,
1383 if (!NT_STATUS_IS_OK(status_tmp)) {
1384 DEBUG(3, ("could not query user info on SAMR pipe: %s\n",
1385 nt_errstr(status_tmp)));
1386 rpccli_samr_Close(samr_pipe, state->mem_ctx, &user_pol);
1390 acct_flags = info->info16.acct_flags;
1392 if (acct_flags == 0) {
1393 rpccli_samr_Close(samr_pipe, state->mem_ctx, &user_pol);
1397 my_info3->base.acct_flags = acct_flags;
1399 DEBUG(10,("successfully retrieved acct_flags 0x%x\n", acct_flags));
1401 rpccli_samr_Close(samr_pipe, state->mem_ctx, &user_pol);
1409 enum winbindd_result winbindd_dual_pam_auth(struct winbindd_domain *domain,
1410 struct winbindd_cli_state *state)
1412 NTSTATUS result = NT_STATUS_LOGON_FAILURE;
1413 NTSTATUS krb5_result = NT_STATUS_OK;
1414 fstring name_domain, name_user;
1416 fstring domain_user;
1417 struct netr_SamInfo3 *info3 = NULL;
1418 NTSTATUS name_map_status = NT_STATUS_UNSUCCESSFUL;
1420 /* Ensure null termination */
1421 state->request->data.auth.user[sizeof(state->request->data.auth.user)-1]='\0';
1423 /* Ensure null termination */
1424 state->request->data.auth.pass[sizeof(state->request->data.auth.pass)-1]='\0';
1426 DEBUG(3, ("[%5lu]: dual pam auth %s\n", (unsigned long)state->pid,
1427 state->request->data.auth.user));
1429 /* Parse domain and username */
1431 name_map_status = normalize_name_unmap(state->mem_ctx,
1432 state->request->data.auth.user,
1435 /* If the name normalization didnt' actually do anything,
1436 just use the original name */
1438 if (!NT_STATUS_IS_OK(name_map_status) &&
1439 !NT_STATUS_EQUAL(name_map_status, NT_STATUS_FILE_RENAMED))
1441 mapped_user = state->request->data.auth.user;
1444 parse_domain_user(mapped_user, name_domain, name_user);
1446 if ( mapped_user != state->request->data.auth.user ) {
1447 fstr_sprintf( domain_user, "%s%c%s", name_domain,
1448 *lp_winbind_separator(),
1450 safe_strcpy( state->request->data.auth.user, domain_user,
1451 sizeof(state->request->data.auth.user)-1 );
1454 if (!domain->online) {
1455 result = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1456 if (domain->startup) {
1457 /* Logons are very important to users. If we're offline and
1458 we get a request within the first 30 seconds of startup,
1459 try very hard to find a DC and go online. */
1461 DEBUG(10,("winbindd_dual_pam_auth: domain: %s offline and auth "
1462 "request in startup mode.\n", domain->name ));
1464 winbindd_flush_negative_conn_cache(domain);
1465 result = init_dc_connection(domain);
1469 DEBUG(10,("winbindd_dual_pam_auth: domain: %s last was %s\n", domain->name, domain->online ? "online":"offline"));
1471 /* Check for Kerberos authentication */
1472 if (domain->online && (state->request->flags & WBFLAG_PAM_KRB5)) {
1474 result = winbindd_dual_pam_auth_kerberos(domain, state, &info3);
1475 /* save for later */
1476 krb5_result = result;
1479 if (NT_STATUS_IS_OK(result)) {
1480 DEBUG(10,("winbindd_dual_pam_auth_kerberos succeeded\n"));
1481 goto process_result;
1483 DEBUG(10,("winbindd_dual_pam_auth_kerberos failed: %s\n", nt_errstr(result)));
1486 if (NT_STATUS_EQUAL(result, NT_STATUS_NO_LOGON_SERVERS) ||
1487 NT_STATUS_EQUAL(result, NT_STATUS_IO_TIMEOUT) ||
1488 NT_STATUS_EQUAL(result, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND)) {
1489 DEBUG(10,("winbindd_dual_pam_auth_kerberos setting domain to offline\n"));
1490 set_domain_offline( domain );
1494 /* there are quite some NT_STATUS errors where there is no
1495 * point in retrying with a samlogon, we explictly have to take
1496 * care not to increase the bad logon counter on the DC */
1498 if (NT_STATUS_EQUAL(result, NT_STATUS_ACCOUNT_DISABLED) ||
1499 NT_STATUS_EQUAL(result, NT_STATUS_ACCOUNT_EXPIRED) ||
1500 NT_STATUS_EQUAL(result, NT_STATUS_ACCOUNT_LOCKED_OUT) ||
1501 NT_STATUS_EQUAL(result, NT_STATUS_INVALID_LOGON_HOURS) ||
1502 NT_STATUS_EQUAL(result, NT_STATUS_INVALID_WORKSTATION) ||
1503 NT_STATUS_EQUAL(result, NT_STATUS_LOGON_FAILURE) ||
1504 NT_STATUS_EQUAL(result, NT_STATUS_NO_SUCH_USER) ||
1505 NT_STATUS_EQUAL(result, NT_STATUS_PASSWORD_EXPIRED) ||
1506 NT_STATUS_EQUAL(result, NT_STATUS_PASSWORD_MUST_CHANGE) ||
1507 NT_STATUS_EQUAL(result, NT_STATUS_WRONG_PASSWORD)) {
1511 if (state->request->flags & WBFLAG_PAM_FALLBACK_AFTER_KRB5) {
1512 DEBUG(3,("falling back to samlogon\n"));
1520 /* Check for Samlogon authentication */
1521 if (domain->online) {
1522 result = winbindd_dual_pam_auth_samlogon(domain, state, &info3);
1524 if (NT_STATUS_IS_OK(result)) {
1525 DEBUG(10,("winbindd_dual_pam_auth_samlogon succeeded\n"));
1526 /* add the Krb5 err if we have one */
1527 if ( NT_STATUS_EQUAL(krb5_result, NT_STATUS_TIME_DIFFERENCE_AT_DC ) ) {
1528 info3->base.user_flags |= LOGON_KRB5_FAIL_CLOCK_SKEW;
1530 goto process_result;
1533 DEBUG(10,("winbindd_dual_pam_auth_samlogon failed: %s\n",
1534 nt_errstr(result)));
1536 if (NT_STATUS_EQUAL(result, NT_STATUS_NO_LOGON_SERVERS) ||
1537 NT_STATUS_EQUAL(result, NT_STATUS_IO_TIMEOUT) ||
1538 NT_STATUS_EQUAL(result, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND))
1540 DEBUG(10,("winbindd_dual_pam_auth_samlogon setting domain to offline\n"));
1541 set_domain_offline( domain );
1545 if (domain->online) {
1546 /* We're still online - fail. */
1552 /* Check for Cached logons */
1553 if (!domain->online && (state->request->flags & WBFLAG_PAM_CACHED_LOGIN) &&
1554 lp_winbind_offline_logon()) {
1556 result = winbindd_dual_pam_auth_cached(domain, state, &info3);
1558 if (NT_STATUS_IS_OK(result)) {
1559 DEBUG(10,("winbindd_dual_pam_auth_cached succeeded\n"));
1560 goto process_result;
1562 DEBUG(10,("winbindd_dual_pam_auth_cached failed: %s\n", nt_errstr(result)));
1569 if (NT_STATUS_IS_OK(result)) {
1571 struct dom_sid user_sid;
1573 /* In all codepaths where result == NT_STATUS_OK info3 must have
1574 been initialized. */
1576 result = NT_STATUS_INTERNAL_ERROR;
1580 wcache_invalidate_samlogon(find_domain_from_name(name_domain), info3);
1581 netsamlogon_cache_store(name_user, info3);
1583 /* save name_to_sid info as early as possible (only if
1584 this is our primary domain so we don't invalidate
1585 the cache entry by storing the seq_num for the wrong
1587 if ( domain->primary ) {
1588 sid_compose(&user_sid, info3->base.domain_sid,
1590 cache_name2sid(domain, name_domain, name_user,
1591 SID_NAME_USER, &user_sid);
1594 /* Check if the user is in the right group */
1596 result = check_info3_in_group(
1598 state->request->data.auth.require_membership_of_sid);
1599 if (!NT_STATUS_IS_OK(result)) {
1600 DEBUG(3, ("User %s is not in the required group (%s), so plaintext authentication is rejected\n",
1601 state->request->data.auth.user,
1602 state->request->data.auth.require_membership_of_sid));
1606 result = append_auth_data(state, info3, name_domain,
1608 if (!NT_STATUS_IS_OK(result)) {
1612 if ((state->request->flags & WBFLAG_PAM_CACHED_LOGIN)
1613 && lp_winbind_offline_logon()) {
1615 result = winbindd_store_creds(domain,
1616 state->request->data.auth.user,
1617 state->request->data.auth.pass,
1621 if (state->request->flags & WBFLAG_PAM_GET_PWD_POLICY) {
1622 struct winbindd_domain *our_domain = find_our_domain();
1624 /* This is not entirely correct I believe, but it is
1625 consistent. Only apply the password policy settings
1626 too warn users for our own domain. Cannot obtain these
1627 from trusted DCs all the time so don't do it at all.
1630 result = NT_STATUS_NOT_SUPPORTED;
1631 if (our_domain == domain ) {
1632 result = fillup_password_policy(our_domain, state);
1635 if (!NT_STATUS_IS_OK(result)
1636 && !NT_STATUS_EQUAL(result, NT_STATUS_NOT_SUPPORTED) )
1638 DEBUG(10,("Failed to get password policies for domain %s: %s\n",
1639 domain->name, nt_errstr(result)));
1644 result = NT_STATUS_OK;
1648 /* give us a more useful (more correct?) error code */
1649 if ((NT_STATUS_EQUAL(result, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND) ||
1650 (NT_STATUS_EQUAL(result, NT_STATUS_UNSUCCESSFUL)))) {
1651 result = NT_STATUS_NO_LOGON_SERVERS;
1654 set_auth_errors(state->response, result);
1656 DEBUG(NT_STATUS_IS_OK(result) ? 5 : 2, ("Plain-text authentication for user %s returned %s (PAM: %d)\n",
1657 state->request->data.auth.user,
1658 state->response->data.auth.nt_status_string,
1659 state->response->data.auth.pam_error));
1661 return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
1664 enum winbindd_result winbindd_dual_pam_auth_crap(struct winbindd_domain *domain,
1665 struct winbindd_cli_state *state)
1668 struct netr_SamInfo3 *info3 = NULL;
1669 struct rpc_pipe_client *netlogon_pipe;
1670 const char *name_user = NULL;
1671 const char *name_domain = NULL;
1672 const char *workstation;
1676 DATA_BLOB lm_resp, nt_resp;
1678 /* This is child-only, so no check for privileged access is needed
1681 /* Ensure null termination */
1682 state->request->data.auth_crap.user[sizeof(state->request->data.auth_crap.user)-1]=0;
1683 state->request->data.auth_crap.domain[sizeof(state->request->data.auth_crap.domain)-1]=0;
1685 name_user = state->request->data.auth_crap.user;
1686 name_domain = state->request->data.auth_crap.domain;
1687 workstation = state->request->data.auth_crap.workstation;
1689 DEBUG(3, ("[%5lu]: pam auth crap domain: %s user: %s\n", (unsigned long)state->pid,
1690 name_domain, name_user));
1692 if (state->request->data.auth_crap.lm_resp_len > sizeof(state->request->data.auth_crap.lm_resp)
1693 || state->request->data.auth_crap.nt_resp_len > sizeof(state->request->data.auth_crap.nt_resp)) {
1694 if (!(state->request->flags & WBFLAG_BIG_NTLMV2_BLOB) ||
1695 state->request->extra_len != state->request->data.auth_crap.nt_resp_len) {
1696 DEBUG(0, ("winbindd_pam_auth_crap: invalid password length %u/%u\n",
1697 state->request->data.auth_crap.lm_resp_len,
1698 state->request->data.auth_crap.nt_resp_len));
1699 result = NT_STATUS_INVALID_PARAMETER;
1704 lm_resp = data_blob_talloc(state->mem_ctx, state->request->data.auth_crap.lm_resp,
1705 state->request->data.auth_crap.lm_resp_len);
1707 if (state->request->flags & WBFLAG_BIG_NTLMV2_BLOB) {
1708 nt_resp = data_blob_talloc(state->mem_ctx,
1709 state->request->extra_data.data,
1710 state->request->data.auth_crap.nt_resp_len);
1712 nt_resp = data_blob_talloc(state->mem_ctx,
1713 state->request->data.auth_crap.nt_resp,
1714 state->request->data.auth_crap.nt_resp_len);
1717 if (strequal(name_domain, get_global_sam_name())) {
1718 DATA_BLOB chal_blob = data_blob_const(
1719 state->request->data.auth_crap.chal,
1720 sizeof(state->request->data.auth_crap.chal));
1722 result = winbindd_dual_auth_passdb(
1723 state->mem_ctx, name_domain, name_user,
1724 &chal_blob, &lm_resp, &nt_resp, &info3);
1725 goto process_result;
1729 netlogon_fn_t logon_fn;
1733 netlogon_pipe = NULL;
1734 result = cm_connect_netlogon(domain, &netlogon_pipe);
1736 if (!NT_STATUS_IS_OK(result)) {
1737 DEBUG(3, ("could not open handle to NETLOGON pipe (error: %s)\n",
1738 nt_errstr(result)));
1742 logon_fn = domain->can_do_samlogon_ex
1743 ? rpccli_netlogon_sam_network_logon_ex
1744 : rpccli_netlogon_sam_network_logon;
1746 result = logon_fn(netlogon_pipe,
1748 state->request->data.auth_crap.logon_parameters,
1752 /* Bug #3248 - found by Stefan Burkei. */
1753 workstation, /* We carefully set this above so use it... */
1754 state->request->data.auth_crap.chal,
1759 if ((NT_STATUS_V(result) == DCERPC_FAULT_OP_RNG_ERROR)
1760 && domain->can_do_samlogon_ex) {
1761 DEBUG(3, ("Got a DC that can not do NetSamLogonEx, "
1762 "retrying with NetSamLogon\n"));
1763 domain->can_do_samlogon_ex = false;
1770 /* We have to try a second time as cm_connect_netlogon
1771 might not yet have noticed that the DC has killed
1774 if (!rpccli_is_connected(netlogon_pipe)) {
1779 /* if we get access denied, a possible cause was that we had and open
1780 connection to the DC, but someone changed our machine account password
1781 out from underneath us using 'net rpc changetrustpw' */
1783 if ( NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED) ) {
1784 DEBUG(3,("winbindd_pam_auth: sam_logon returned "
1785 "ACCESS_DENIED. Maybe the trust account "
1786 "password was changed and we didn't know it. "
1787 "Killing connections to domain %s\n",
1789 invalidate_cm_connection(&domain->conn);
1793 } while ( (attempts < 2) && retry );
1797 if (NT_STATUS_IS_OK(result)) {
1799 wcache_invalidate_samlogon(find_domain_from_name(name_domain), info3);
1800 netsamlogon_cache_store(name_user, info3);
1802 /* Check if the user is in the right group */
1804 result = check_info3_in_group(
1806 state->request->data.auth_crap.require_membership_of_sid);
1807 if (!NT_STATUS_IS_OK(result)) {
1808 DEBUG(3, ("User %s is not in the required group (%s), so "
1809 "crap authentication is rejected\n",
1810 state->request->data.auth_crap.user,
1811 state->request->data.auth_crap.require_membership_of_sid));
1815 result = append_auth_data(state, info3, name_domain,
1817 if (!NT_STATUS_IS_OK(result)) {
1824 /* give us a more useful (more correct?) error code */
1825 if ((NT_STATUS_EQUAL(result, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND) ||
1826 (NT_STATUS_EQUAL(result, NT_STATUS_UNSUCCESSFUL)))) {
1827 result = NT_STATUS_NO_LOGON_SERVERS;
1830 if (state->request->flags & WBFLAG_PAM_NT_STATUS_SQUASH) {
1831 result = nt_status_squash(result);
1834 set_auth_errors(state->response, result);
1836 DEBUG(NT_STATUS_IS_OK(result) ? 5 : 2,
1837 ("NTLM CRAP authentication for user [%s]\\[%s] returned %s (PAM: %d)\n",
1840 state->response->data.auth.nt_status_string,
1841 state->response->data.auth.pam_error));
1843 return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
1846 enum winbindd_result winbindd_dual_pam_chauthtok(struct winbindd_domain *contact_domain,
1847 struct winbindd_cli_state *state)
1850 char *newpass = NULL;
1851 struct policy_handle dom_pol;
1852 struct rpc_pipe_client *cli = NULL;
1853 bool got_info = false;
1854 struct samr_DomInfo1 *info = NULL;
1855 struct userPwdChangeFailureInformation *reject = NULL;
1856 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
1857 fstring domain, user;
1859 ZERO_STRUCT(dom_pol);
1861 DEBUG(3, ("[%5lu]: dual pam chauthtok %s\n", (unsigned long)state->pid,
1862 state->request->data.auth.user));
1864 if (!parse_domain_user(state->request->data.chauthtok.user, domain, user)) {
1868 /* Change password */
1870 oldpass = state->request->data.chauthtok.oldpass;
1871 newpass = state->request->data.chauthtok.newpass;
1873 /* Initialize reject reason */
1874 state->response->data.auth.reject_reason = Undefined;
1876 /* Get sam handle */
1878 result = cm_connect_sam(contact_domain, state->mem_ctx, &cli,
1880 if (!NT_STATUS_IS_OK(result)) {
1881 DEBUG(1, ("could not get SAM handle on DC for %s\n", domain));
1885 result = rpccli_samr_chgpasswd_user3(cli, state->mem_ctx,
1892 /* Windows 2003 returns NT_STATUS_PASSWORD_RESTRICTION */
1894 if (NT_STATUS_EQUAL(result, NT_STATUS_PASSWORD_RESTRICTION) ) {
1896 fill_in_password_policy(state->response, info);
1898 state->response->data.auth.reject_reason =
1899 reject->extendedFailureReason;
1904 /* atm the pidl generated rpccli_samr_ChangePasswordUser3 function will
1905 * return with NT_STATUS_BUFFER_TOO_SMALL for w2k dcs as w2k just
1906 * returns with 4byte error code (NT_STATUS_NOT_SUPPORTED) which is too
1907 * short to comply with the samr_ChangePasswordUser3 idl - gd */
1909 /* only fallback when the chgpasswd_user3 call is not supported */
1910 if ((NT_STATUS_EQUAL(result, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR))) ||
1911 (NT_STATUS_EQUAL(result, NT_STATUS_NOT_SUPPORTED)) ||
1912 (NT_STATUS_EQUAL(result, NT_STATUS_BUFFER_TOO_SMALL)) ||
1913 (NT_STATUS_EQUAL(result, NT_STATUS_NOT_IMPLEMENTED))) {
1915 DEBUG(10,("Password change with chgpasswd_user3 failed with: %s, retrying chgpasswd_user2\n",
1916 nt_errstr(result)));
1918 result = rpccli_samr_chgpasswd_user2(cli, state->mem_ctx, user, newpass, oldpass);
1920 /* Windows 2000 returns NT_STATUS_ACCOUNT_RESTRICTION.
1921 Map to the same status code as Windows 2003. */
1923 if ( NT_STATUS_EQUAL(NT_STATUS_ACCOUNT_RESTRICTION, result ) ) {
1924 result = NT_STATUS_PASSWORD_RESTRICTION;
1930 if (NT_STATUS_IS_OK(result) && (state->request->flags & WBFLAG_PAM_CACHED_LOGIN)) {
1931 if (lp_winbind_offline_logon()) {
1932 result = winbindd_update_creds_by_name(contact_domain,
1934 /* Again, this happens when we login from gdm or xdm
1935 * and the password expires, *BUT* cached crendentials
1936 * doesn't exist. winbindd_update_creds_by_name()
1937 * returns NT_STATUS_NO_SUCH_USER.
1938 * This is not a failure.
1941 if (NT_STATUS_EQUAL(result, NT_STATUS_NO_SUCH_USER)) {
1942 result = NT_STATUS_OK;
1945 if (!NT_STATUS_IS_OK(result)) {
1946 DEBUG(10,("Failed to store creds: %s\n", nt_errstr(result)));
1947 goto process_result;
1952 if (!NT_STATUS_IS_OK(result) && !got_info && contact_domain) {
1954 NTSTATUS policy_ret;
1956 policy_ret = fillup_password_policy(contact_domain, state);
1958 /* failure of this is non critical, it will just provide no
1959 * additional information to the client why the change has
1960 * failed - Guenther */
1962 if (!NT_STATUS_IS_OK(policy_ret)) {
1963 DEBUG(10,("Failed to get password policies: %s\n", nt_errstr(policy_ret)));
1964 goto process_result;
1970 if (strequal(contact_domain->name, get_global_sam_name())) {
1971 /* FIXME: internal rpc pipe does not cache handles yet */
1973 if (is_valid_policy_hnd(&dom_pol)) {
1974 rpccli_samr_Close(cli, state->mem_ctx, &dom_pol);
1980 set_auth_errors(state->response, result);
1982 DEBUG(NT_STATUS_IS_OK(result) ? 5 : 2,
1983 ("Password change for user [%s]\\[%s] returned %s (PAM: %d)\n",
1986 state->response->data.auth.nt_status_string,
1987 state->response->data.auth.pam_error));
1989 return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
1992 enum winbindd_result winbindd_dual_pam_logoff(struct winbindd_domain *domain,
1993 struct winbindd_cli_state *state)
1995 NTSTATUS result = NT_STATUS_NOT_SUPPORTED;
1997 DEBUG(3, ("[%5lu]: pam dual logoff %s\n", (unsigned long)state->pid,
1998 state->request->data.logoff.user));
2000 if (!(state->request->flags & WBFLAG_PAM_KRB5)) {
2001 result = NT_STATUS_OK;
2002 goto process_result;
2005 if (state->request->data.logoff.krb5ccname[0] == '\0') {
2006 result = NT_STATUS_OK;
2007 goto process_result;
2012 if (state->request->data.logoff.uid < 0) {
2013 DEBUG(0,("winbindd_pam_logoff: invalid uid\n"));
2014 goto process_result;
2017 /* what we need here is to find the corresponding krb5 ccache name *we*
2018 * created for a given username and destroy it */
2020 if (!ccache_entry_exists(state->request->data.logoff.user)) {
2021 result = NT_STATUS_OK;
2022 DEBUG(10,("winbindd_pam_logoff: no entry found.\n"));
2023 goto process_result;
2026 if (!ccache_entry_identical(state->request->data.logoff.user,
2027 state->request->data.logoff.uid,
2028 state->request->data.logoff.krb5ccname)) {
2029 DEBUG(0,("winbindd_pam_logoff: cached entry differs.\n"));
2030 goto process_result;
2033 result = remove_ccache(state->request->data.logoff.user);
2034 if (!NT_STATUS_IS_OK(result)) {
2035 DEBUG(0,("winbindd_pam_logoff: failed to remove ccache: %s\n",
2036 nt_errstr(result)));
2037 goto process_result;
2041 result = NT_STATUS_NOT_SUPPORTED;
2047 set_auth_errors(state->response, result);
2049 return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
2052 /* Change user password with auth crap*/
2054 enum winbindd_result winbindd_dual_pam_chng_pswd_auth_crap(struct winbindd_domain *domainSt, struct winbindd_cli_state *state)
2057 DATA_BLOB new_nt_password;
2058 DATA_BLOB old_nt_hash_enc;
2059 DATA_BLOB new_lm_password;
2060 DATA_BLOB old_lm_hash_enc;
2061 fstring domain,user;
2062 struct policy_handle dom_pol;
2063 struct winbindd_domain *contact_domain = domainSt;
2064 struct rpc_pipe_client *cli = NULL;
2066 ZERO_STRUCT(dom_pol);
2068 /* Ensure null termination */
2069 state->request->data.chng_pswd_auth_crap.user[
2070 sizeof(state->request->data.chng_pswd_auth_crap.user)-1]=0;
2071 state->request->data.chng_pswd_auth_crap.domain[
2072 sizeof(state->request->data.chng_pswd_auth_crap.domain)-1]=0;
2076 DEBUG(3, ("[%5lu]: pam change pswd auth crap domain: %s user: %s\n",
2077 (unsigned long)state->pid,
2078 state->request->data.chng_pswd_auth_crap.domain,
2079 state->request->data.chng_pswd_auth_crap.user));
2081 if (lp_winbind_offline_logon()) {
2082 DEBUG(0,("Refusing password change as winbind offline logons are enabled. "));
2083 DEBUGADD(0,("Changing passwords here would risk inconsistent logons\n"));
2084 result = NT_STATUS_ACCESS_DENIED;
2088 if (*state->request->data.chng_pswd_auth_crap.domain) {
2089 fstrcpy(domain,state->request->data.chng_pswd_auth_crap.domain);
2091 parse_domain_user(state->request->data.chng_pswd_auth_crap.user,
2095 DEBUG(3,("no domain specified with username (%s) - "
2097 state->request->data.chng_pswd_auth_crap.user));
2098 result = NT_STATUS_NO_SUCH_USER;
2103 if (!*domain && lp_winbind_use_default_domain()) {
2104 fstrcpy(domain,(char *)lp_workgroup());
2108 fstrcpy(user, state->request->data.chng_pswd_auth_crap.user);
2111 DEBUG(3, ("[%5lu]: pam auth crap domain: %s user: %s\n",
2112 (unsigned long)state->pid, domain, user));
2114 /* Change password */
2115 new_nt_password = data_blob_const(
2116 state->request->data.chng_pswd_auth_crap.new_nt_pswd,
2117 state->request->data.chng_pswd_auth_crap.new_nt_pswd_len);
2119 old_nt_hash_enc = data_blob_const(
2120 state->request->data.chng_pswd_auth_crap.old_nt_hash_enc,
2121 state->request->data.chng_pswd_auth_crap.old_nt_hash_enc_len);
2123 if(state->request->data.chng_pswd_auth_crap.new_lm_pswd_len > 0) {
2124 new_lm_password = data_blob_const(
2125 state->request->data.chng_pswd_auth_crap.new_lm_pswd,
2126 state->request->data.chng_pswd_auth_crap.new_lm_pswd_len);
2128 old_lm_hash_enc = data_blob_const(
2129 state->request->data.chng_pswd_auth_crap.old_lm_hash_enc,
2130 state->request->data.chng_pswd_auth_crap.old_lm_hash_enc_len);
2132 new_lm_password.length = 0;
2133 old_lm_hash_enc.length = 0;
2136 /* Get sam handle */
2138 result = cm_connect_sam(contact_domain, state->mem_ctx, &cli, &dom_pol);
2139 if (!NT_STATUS_IS_OK(result)) {
2140 DEBUG(1, ("could not get SAM handle on DC for %s\n", domain));
2144 result = rpccli_samr_chng_pswd_auth_crap(
2145 cli, state->mem_ctx, user, new_nt_password, old_nt_hash_enc,
2146 new_lm_password, old_lm_hash_enc);
2150 if (strequal(contact_domain->name, get_global_sam_name())) {
2151 /* FIXME: internal rpc pipe does not cache handles yet */
2153 if (is_valid_policy_hnd(&dom_pol)) {
2154 rpccli_samr_Close(cli, state->mem_ctx, &dom_pol);
2160 set_auth_errors(state->response, result);
2162 DEBUG(NT_STATUS_IS_OK(result) ? 5 : 2,
2163 ("Password change for user [%s]\\[%s] returned %s (PAM: %d)\n",
2165 state->response->data.auth.nt_status_string,
2166 state->response->data.auth.pam_error));
2168 return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;