2 Unix SMB/CIFS implementation.
3 NT Domain Authentication SMB / MSRPC client
4 Copyright (C) Andrew Tridgell 1992-2000
5 Copyright (C) Jeremy Allison 1998.
6 Largely re-written by Jeremy Allison (C) 2005.
7 Copyright (C) Guenther Deschner 2008.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
24 #include "system/filesys.h"
25 #include "libsmb/libsmb.h"
26 #include "rpc_client/rpc_client.h"
27 #include "rpc_client/cli_pipe.h"
28 #include "../libcli/auth/libcli_auth.h"
29 #include "../libcli/auth/netlogon_creds_cli.h"
30 #include "../librpc/gen_ndr/ndr_netlogon_c.h"
31 #include "../librpc/gen_ndr/schannel.h"
32 #include "rpc_client/cli_netlogon.h"
33 #include "rpc_client/init_netlogon.h"
34 #include "rpc_client/util_netlogon.h"
35 #include "../libcli/security/security.h"
36 #include "lib/param/param.h"
37 #include "libcli/smb/smbXcli_base.h"
38 #include "dbwrap/dbwrap.h"
39 #include "dbwrap/dbwrap_open.h"
43 NTSTATUS rpccli_pre_open_netlogon_creds(void)
45 static bool already_open = false;
47 struct loadparm_context *lp_ctx;
49 struct db_context *global_db;
56 frame = talloc_stackframe();
58 lp_ctx = loadparm_init_s3(frame, loadparm_s3_helpers());
61 return NT_STATUS_NO_MEMORY;
64 fname = lpcfg_private_db_path(frame, lp_ctx, "netlogon_creds_cli");
67 return NT_STATUS_NO_MEMORY;
70 global_db = db_open(frame, fname,
71 0, TDB_CLEAR_IF_FIRST|TDB_INCOMPATIBLE_HASH,
72 O_RDWR|O_CREAT, 0600, DBWRAP_LOCK_ORDER_2,
73 DBWRAP_FLAG_OPTIMIZE_READONLY_ACCESS);
74 if (global_db == NULL) {
76 return NT_STATUS_NO_MEMORY;
79 status = netlogon_creds_cli_set_global_db(&global_db);
81 if (!NT_STATUS_IS_OK(status)) {
89 static NTSTATUS rpccli_create_netlogon_creds(
90 const char *server_computer,
91 const char *server_netbios_domain,
92 const char *server_dns_domain,
93 const char *client_account,
94 enum netr_SchannelType sec_chan_type,
95 struct messaging_context *msg_ctx,
97 struct netlogon_creds_cli_context **netlogon_creds)
99 TALLOC_CTX *frame = talloc_stackframe();
100 struct loadparm_context *lp_ctx;
103 status = rpccli_pre_open_netlogon_creds();
104 if (!NT_STATUS_IS_OK(status)) {
109 lp_ctx = loadparm_init_s3(frame, loadparm_s3_helpers());
110 if (lp_ctx == NULL) {
112 return NT_STATUS_NO_MEMORY;
114 status = netlogon_creds_cli_context_global(lp_ctx,
119 server_netbios_domain,
121 mem_ctx, netlogon_creds);
123 if (!NT_STATUS_IS_OK(status)) {
130 NTSTATUS rpccli_create_netlogon_creds_ctx(
131 struct cli_credentials *creds,
132 const char *server_computer,
133 struct messaging_context *msg_ctx,
135 struct netlogon_creds_cli_context **creds_ctx)
137 enum netr_SchannelType sec_chan_type;
138 const char *server_netbios_domain;
139 const char *server_dns_domain;
140 const char *client_account;
142 sec_chan_type = cli_credentials_get_secure_channel_type(creds);
143 client_account = cli_credentials_get_username(creds);
144 server_netbios_domain = cli_credentials_get_domain(creds);
145 server_dns_domain = cli_credentials_get_realm(creds);
147 return rpccli_create_netlogon_creds(server_computer,
148 server_netbios_domain,
156 NTSTATUS rpccli_setup_netlogon_creds_locked(
157 struct cli_state *cli,
158 enum dcerpc_transport_t transport,
159 struct netlogon_creds_cli_context *creds_ctx,
161 struct cli_credentials *cli_creds,
162 uint32_t *negotiate_flags)
164 TALLOC_CTX *frame = talloc_stackframe();
165 struct rpc_pipe_client *netlogon_pipe = NULL;
166 struct netlogon_creds_CredentialState *creds = NULL;
167 uint8_t num_nt_hashes = 0;
168 const struct samr_Password *nt_hashes[2] = { NULL, NULL };
169 uint8_t idx_nt_hashes = 0;
172 status = netlogon_creds_cli_get(creds_ctx, frame, &creds);
173 if (NT_STATUS_IS_OK(status)) {
174 const char *action = "using";
177 action = "overwrite";
180 DEBUG(5,("%s: %s cached netlogon_creds cli[%s/%s] to %s\n",
181 __FUNCTION__, action,
182 creds->account_name, creds->computer_name,
183 smbXcli_conn_remote_name(cli->conn)));
190 nt_hashes[0] = cli_credentials_get_nt_hash(cli_creds, talloc_tos());
191 if (nt_hashes[0] == NULL) {
193 return NT_STATUS_NO_MEMORY;
197 nt_hashes[1] = cli_credentials_get_old_nt_hash(cli_creds,
199 if (nt_hashes[1] != NULL) {
203 status = cli_rpc_pipe_open_noauth_transport(cli,
207 if (!NT_STATUS_IS_OK(status)) {
208 DEBUG(5,("%s: failed to open noauth netlogon connection to %s - %s\n",
210 smbXcli_conn_remote_name(cli->conn),
215 talloc_steal(frame, netlogon_pipe);
217 status = netlogon_creds_cli_auth(creds_ctx,
218 netlogon_pipe->binding_handle,
222 if (!NT_STATUS_IS_OK(status)) {
227 status = netlogon_creds_cli_get(creds_ctx, frame, &creds);
228 if (!NT_STATUS_IS_OK(status)) {
230 return NT_STATUS_INTERNAL_ERROR;
233 DEBUG(5,("%s: using new netlogon_creds cli[%s/%s] to %s\n",
235 creds->account_name, creds->computer_name,
236 smbXcli_conn_remote_name(cli->conn)));
239 if (negotiate_flags != NULL) {
240 *negotiate_flags = creds->negotiate_flags;
247 NTSTATUS rpccli_setup_netlogon_creds(
248 struct cli_state *cli,
249 enum dcerpc_transport_t transport,
250 struct netlogon_creds_cli_context *creds_ctx,
252 struct cli_credentials *cli_creds)
254 TALLOC_CTX *frame = talloc_stackframe();
255 struct netlogon_creds_cli_lck *lck;
258 status = netlogon_creds_cli_lck(
259 creds_ctx, NETLOGON_CREDS_CLI_LCK_EXCLUSIVE,
261 if (!NT_STATUS_IS_OK(status)) {
262 DBG_WARNING("netlogon_creds_cli_lck failed: %s\n",
268 status = rpccli_setup_netlogon_creds_locked(
269 cli, transport, creds_ctx, force_reauth, cli_creds, NULL);
276 NTSTATUS rpccli_connect_netlogon(
277 struct cli_state *cli,
278 enum dcerpc_transport_t transport,
279 struct netlogon_creds_cli_context *creds_ctx,
281 struct cli_credentials *trust_creds,
282 struct rpc_pipe_client **_rpccli)
284 TALLOC_CTX *frame = talloc_stackframe();
285 struct netlogon_creds_CredentialState *creds = NULL;
286 enum netlogon_creds_cli_lck_type lck_type;
287 enum netr_SchannelType sec_chan_type;
288 struct netlogon_creds_cli_lck *lck = NULL;
289 uint32_t negotiate_flags;
290 uint8_t found_session_key[16] = {0};
291 bool found_existing_creds = false;
293 struct rpc_pipe_client *rpccli;
297 sec_chan_type = cli_credentials_get_secure_channel_type(trust_creds);
298 if (sec_chan_type == SEC_CHAN_NULL) {
299 DBG_ERR("secure_channel_type gave SEC_CHAN_NULL\n");
300 status = NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
307 * See whether we can use existing netlogon_creds or
308 * whether we have to serverauthenticate.
310 status = netlogon_creds_cli_get(creds_ctx, frame, &creds);
312 if (NT_STATUS_IS_OK(status)) {
313 int cmp = memcmp(found_session_key,
315 sizeof(found_session_key));
316 found_existing_creds = (cmp != 0);
318 memcpy(found_session_key,
320 sizeof(found_session_key));
325 lck_type = (force_reauth || !found_existing_creds) ?
326 NETLOGON_CREDS_CLI_LCK_EXCLUSIVE :
327 NETLOGON_CREDS_CLI_LCK_SHARED;
329 status = netlogon_creds_cli_lck(creds_ctx, lck_type, frame, &lck);
330 if (!NT_STATUS_IS_OK(status)) {
331 DBG_DEBUG("netlogon_creds_cli_lck failed: %s\n",
336 if (!found_existing_creds) {
338 * Try to find creds under the lock again. Someone
339 * else might have done it for us.
341 status = netlogon_creds_cli_get(creds_ctx, frame, &creds);
343 if (NT_STATUS_IS_OK(status)) {
344 int cmp = memcmp(found_session_key,
346 sizeof(found_session_key));
347 found_existing_creds = (cmp != 0);
349 memcpy(found_session_key, creds->session_key,
350 sizeof(found_session_key));
356 do_serverauth = force_reauth || !found_existing_creds;
358 if (!do_serverauth) {
360 * Do the quick schannel bind without a reauth
362 status = cli_rpc_pipe_open_bind_schannel(
363 cli, &ndr_table_netlogon, transport, creds_ctx,
365 if (!retry && NT_STATUS_EQUAL(status, NT_STATUS_NETWORK_ACCESS_DENIED)) {
366 DBG_DEBUG("Retrying with serverauthenticate\n");
371 if (!NT_STATUS_IS_OK(status)) {
372 DBG_DEBUG("cli_rpc_pipe_open_bind_schannel "
373 "failed: %s\n", nt_errstr(status));
379 if (cli_credentials_is_anonymous(trust_creds)) {
380 DBG_WARNING("get_trust_credential for %s only gave anonymous,"
381 "unable to negotiate NETLOGON credentials\n",
382 netlogon_creds_cli_debug_string(
384 status = NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
388 status = rpccli_setup_netlogon_creds_locked(
389 cli, transport, creds_ctx, true, trust_creds,
391 if (!NT_STATUS_IS_OK(status)) {
392 DBG_DEBUG("rpccli_setup_netlogon_creds failed for %s, "
393 "unable to setup NETLOGON credentials: %s\n",
394 netlogon_creds_cli_debug_string(
400 if (!(negotiate_flags & NETLOGON_NEG_AUTHENTICATED_RPC)) {
401 if (lp_winbind_sealed_pipes() || lp_require_strong_key()) {
402 status = NT_STATUS_DOWNGRADE_DETECTED;
403 DBG_WARNING("Unwilling to make connection to %s"
404 "without connection level security, "
405 "must set 'winbind sealed pipes = false'"
406 " and 'require strong key = false' "
408 netlogon_creds_cli_debug_string(
414 status = cli_rpc_pipe_open_noauth_transport(
415 cli, transport, &ndr_table_netlogon, &rpccli);
416 if (!NT_STATUS_IS_OK(status)) {
417 DBG_DEBUG("cli_rpc_pipe_open_noauth_transport "
418 "failed: %s\n", nt_errstr(status));
424 status = cli_rpc_pipe_open_bind_schannel(
425 cli, &ndr_table_netlogon, transport, creds_ctx, &rpccli);
426 if (!NT_STATUS_IS_OK(status)) {
427 DBG_DEBUG("cli_rpc_pipe_open_bind_schannel "
428 "failed: %s\n", nt_errstr(status));
432 status = netlogon_creds_cli_check(creds_ctx, rpccli->binding_handle,
434 if (!NT_STATUS_IS_OK(status)) {
435 DBG_WARNING("netlogon_creds_cli_check failed: %s\n",
442 status = NT_STATUS_OK;
444 ZERO_STRUCT(found_session_key);
450 /* Logon domain user */
452 NTSTATUS rpccli_netlogon_password_logon(
453 struct netlogon_creds_cli_context *creds_ctx,
454 struct dcerpc_binding_handle *binding_handle,
456 uint32_t logon_parameters,
458 const char *username,
459 const char *password,
460 const char *workstation,
461 enum netr_LogonInfoClass logon_type,
462 uint8_t *authoritative,
464 uint16_t *_validation_level,
465 union netr_Validation **_validation)
467 TALLOC_CTX *frame = talloc_stackframe();
469 union netr_LogonLevel *logon;
470 uint16_t validation_level = 0;
471 union netr_Validation *validation = NULL;
472 char *workstation_slash = NULL;
474 logon = talloc_zero(frame, union netr_LogonLevel);
477 return NT_STATUS_NO_MEMORY;
480 if (workstation == NULL) {
481 workstation = lp_netbios_name();
484 workstation_slash = talloc_asprintf(frame, "\\\\%s", workstation);
485 if (workstation_slash == NULL) {
487 return NT_STATUS_NO_MEMORY;
490 /* Initialise input parameters */
492 switch (logon_type) {
493 case NetlogonInteractiveInformation:
494 case NetlogonInteractiveTransitiveInformation: {
496 struct netr_PasswordInfo *password_info;
498 struct samr_Password lmpassword;
499 struct samr_Password ntpassword;
501 password_info = talloc_zero(frame, struct netr_PasswordInfo);
502 if (password_info == NULL) {
504 return NT_STATUS_NO_MEMORY;
507 nt_lm_owf_gen(password, ntpassword.hash, lmpassword.hash);
509 password_info->identity_info.domain_name.string = domain;
510 password_info->identity_info.parameter_control = logon_parameters;
511 password_info->identity_info.logon_id_low = 0xdead;
512 password_info->identity_info.logon_id_high = 0xbeef;
513 password_info->identity_info.account_name.string = username;
514 password_info->identity_info.workstation.string = workstation_slash;
516 password_info->lmpassword = lmpassword;
517 password_info->ntpassword = ntpassword;
519 logon->password = password_info;
523 case NetlogonNetworkInformation:
524 case NetlogonNetworkTransitiveInformation: {
525 struct netr_NetworkInfo *network_info;
527 unsigned char local_lm_response[24];
528 unsigned char local_nt_response[24];
529 struct netr_ChallengeResponse lm;
530 struct netr_ChallengeResponse nt;
535 network_info = talloc_zero(frame, struct netr_NetworkInfo);
536 if (network_info == NULL) {
538 return NT_STATUS_NO_MEMORY;
541 generate_random_buffer(chal, 8);
543 SMBencrypt(password, chal, local_lm_response);
544 SMBNTencrypt(password, chal, local_nt_response);
547 lm.data = local_lm_response;
550 nt.data = local_nt_response;
552 network_info->identity_info.domain_name.string = domain;
553 network_info->identity_info.parameter_control = logon_parameters;
554 network_info->identity_info.logon_id_low = 0xdead;
555 network_info->identity_info.logon_id_high = 0xbeef;
556 network_info->identity_info.account_name.string = username;
557 network_info->identity_info.workstation.string = workstation_slash;
559 memcpy(network_info->challenge, chal, 8);
560 network_info->nt = nt;
561 network_info->lm = lm;
563 logon->network = network_info;
568 DEBUG(0, ("switch value %d not supported\n",
571 return NT_STATUS_INVALID_INFO_CLASS;
574 status = netlogon_creds_cli_LogonSamLogon(creds_ctx,
583 if (!NT_STATUS_IS_OK(status)) {
589 *_validation_level = validation_level;
590 *_validation = validation;
596 * Logon domain user with an 'network' SAM logon
598 * @param info3 Pointer to a NET_USER_INFO_3 already allocated by the caller.
602 NTSTATUS rpccli_netlogon_network_logon(
603 struct netlogon_creds_cli_context *creds_ctx,
604 struct dcerpc_binding_handle *binding_handle,
606 uint32_t logon_parameters,
607 const char *username,
609 const char *workstation,
610 const uint8_t chal[8],
611 DATA_BLOB lm_response,
612 DATA_BLOB nt_response,
613 enum netr_LogonInfoClass logon_type,
614 uint8_t *authoritative,
616 uint16_t *_validation_level,
617 union netr_Validation **_validation)
620 const char *workstation_name_slash;
621 union netr_LogonLevel *logon = NULL;
622 struct netr_NetworkInfo *network_info;
623 uint16_t validation_level = 0;
624 union netr_Validation *validation = NULL;
625 struct netr_ChallengeResponse lm;
626 struct netr_ChallengeResponse nt;
633 switch (logon_type) {
634 case NetlogonNetworkInformation:
635 case NetlogonNetworkTransitiveInformation:
638 DEBUG(0, ("switch value %d not supported\n",
640 return NT_STATUS_INVALID_INFO_CLASS;
643 logon = talloc_zero(mem_ctx, union netr_LogonLevel);
645 return NT_STATUS_NO_MEMORY;
648 network_info = talloc_zero(mem_ctx, struct netr_NetworkInfo);
650 return NT_STATUS_NO_MEMORY;
653 if (workstation[0] != '\\' && workstation[1] != '\\') {
654 workstation_name_slash = talloc_asprintf(mem_ctx, "\\\\%s", workstation);
656 workstation_name_slash = workstation;
659 if (!workstation_name_slash) {
660 DEBUG(0, ("talloc_asprintf failed!\n"));
661 return NT_STATUS_NO_MEMORY;
664 /* Initialise input parameters */
666 lm.data = lm_response.data;
667 lm.length = lm_response.length;
668 nt.data = nt_response.data;
669 nt.length = nt_response.length;
671 network_info->identity_info.domain_name.string = domain;
672 network_info->identity_info.parameter_control = logon_parameters;
673 network_info->identity_info.logon_id_low = 0xdead;
674 network_info->identity_info.logon_id_high = 0xbeef;
675 network_info->identity_info.account_name.string = username;
676 network_info->identity_info.workstation.string = workstation_name_slash;
678 memcpy(network_info->challenge, chal, 8);
679 network_info->nt = nt;
680 network_info->lm = lm;
682 logon->network = network_info;
684 /* Marshall data and send request */
686 status = netlogon_creds_cli_LogonSamLogon(creds_ctx,
695 if (!NT_STATUS_IS_OK(status)) {
699 *_validation_level = validation_level;
700 *_validation = validation;