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 "../libcli/auth/libcli_auth.h"
25 #include "../librpc/gen_ndr/cli_netlogon.h"
26 #include "rpc_client/cli_netlogon.h"
27 #include "rpc_client/init_netlogon.h"
29 /****************************************************************************
30 Wrapper function that uses the auth and auth2 calls to set up a NETLOGON
31 credentials chain. Stores the credentials in the struct dcinfo in the
33 ****************************************************************************/
35 NTSTATUS rpccli_netlogon_setup_creds(struct rpc_pipe_client *cli,
36 const char *server_name,
38 const char *clnt_name,
39 const char *machine_account,
40 const unsigned char machine_pwd[16],
41 enum netr_SchannelType sec_chan_type,
42 uint32_t *neg_flags_inout)
44 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
45 struct netr_Credential clnt_chal_send;
46 struct netr_Credential srv_chal_recv;
47 struct samr_Password password;
50 uint32_t neg_flags = *neg_flags_inout;
52 if (!ndr_syntax_id_equal(&cli->abstract_syntax,
53 &ndr_table_netlogon.syntax_id)) {
54 return NT_STATUS_INVALID_PARAMETER;
59 /* Store the machine account password we're going to use. */
60 memcpy(password.hash, machine_pwd, 16);
62 fstr_sprintf( mach_acct, "%s$", machine_account);
65 /* Create the client challenge. */
66 generate_random_buffer(clnt_chal_send.data, 8);
68 /* Get the server challenge. */
69 result = rpccli_netr_ServerReqChallenge(cli, talloc_tos(),
74 if (!NT_STATUS_IS_OK(result)) {
78 /* Calculate the session key and client credentials */
80 cli->dc = netlogon_creds_client_init(cli,
90 return NT_STATUS_NO_MEMORY;
94 * Send client auth-2 challenge and receive server repy.
97 result = rpccli_netr_ServerAuthenticate2(cli, talloc_tos(),
99 cli->dc->account_name,
101 cli->dc->computer_name,
102 &clnt_chal_send, /* input. */
103 &srv_chal_recv, /* output. */
106 /* we might be talking to NT4, so let's downgrade in that case and retry
107 * with the returned neg_flags - gd */
109 if (NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED) && !retried) {
111 TALLOC_FREE(cli->dc);
115 if (!NT_STATUS_IS_OK(result)) {
120 * Check the returned value using the initial
121 * server received challenge.
124 if (!netlogon_creds_client_check(cli->dc, &srv_chal_recv)) {
126 * Server replied with bad credential. Fail.
128 DEBUG(0,("rpccli_netlogon_setup_creds: server %s "
129 "replied with bad credential\n",
131 return NT_STATUS_ACCESS_DENIED;
134 DEBUG(5,("rpccli_netlogon_setup_creds: server %s credential "
135 "chain established.\n",
138 cli->dc->negotiate_flags = neg_flags;
139 *neg_flags_inout = neg_flags;
144 /* Logon domain user */
146 NTSTATUS rpccli_netlogon_sam_logon(struct rpc_pipe_client *cli,
148 uint32 logon_parameters,
150 const char *username,
151 const char *password,
152 const char *workstation,
155 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
156 struct netr_Authenticator clnt_creds;
157 struct netr_Authenticator ret_creds;
158 union netr_LogonLevel *logon;
159 union netr_Validation validation;
160 uint8_t authoritative;
161 int validation_level = 3;
162 fstring clnt_name_slash;
164 ZERO_STRUCT(ret_creds);
166 logon = TALLOC_ZERO_P(mem_ctx, union netr_LogonLevel);
168 return NT_STATUS_NO_MEMORY;
172 fstr_sprintf( clnt_name_slash, "\\\\%s", workstation );
174 fstr_sprintf( clnt_name_slash, "\\\\%s", global_myname() );
177 /* Initialise input parameters */
179 netlogon_creds_client_authenticator(cli->dc, &clnt_creds);
181 switch (logon_type) {
182 case NetlogonInteractiveInformation: {
184 struct netr_PasswordInfo *password_info;
186 struct samr_Password lmpassword;
187 struct samr_Password ntpassword;
189 password_info = TALLOC_ZERO_P(mem_ctx, struct netr_PasswordInfo);
190 if (!password_info) {
191 return NT_STATUS_NO_MEMORY;
194 nt_lm_owf_gen(password, ntpassword.hash, lmpassword.hash);
196 if (cli->dc->negotiate_flags & NETLOGON_NEG_ARCFOUR) {
197 netlogon_creds_arcfour_crypt(cli->dc, lmpassword.hash, 16);
198 netlogon_creds_arcfour_crypt(cli->dc, ntpassword.hash, 16);
200 netlogon_creds_des_encrypt(cli->dc, &lmpassword);
201 netlogon_creds_des_encrypt(cli->dc, &ntpassword);
204 password_info->identity_info.domain_name.string = domain;
205 password_info->identity_info.parameter_control = logon_parameters;
206 password_info->identity_info.logon_id_low = 0xdead;
207 password_info->identity_info.logon_id_high = 0xbeef;
208 password_info->identity_info.account_name.string = username;
209 password_info->identity_info.workstation.string = clnt_name_slash;
211 password_info->lmpassword = lmpassword;
212 password_info->ntpassword = ntpassword;
214 logon->password = password_info;
218 case NetlogonNetworkInformation: {
219 struct netr_NetworkInfo *network_info;
221 unsigned char local_lm_response[24];
222 unsigned char local_nt_response[24];
223 struct netr_ChallengeResponse lm;
224 struct netr_ChallengeResponse nt;
229 network_info = TALLOC_ZERO_P(mem_ctx, struct netr_NetworkInfo);
231 return NT_STATUS_NO_MEMORY;
234 generate_random_buffer(chal, 8);
236 SMBencrypt(password, chal, local_lm_response);
237 SMBNTencrypt(password, chal, local_nt_response);
240 lm.data = local_lm_response;
243 nt.data = local_nt_response;
245 network_info->identity_info.domain_name.string = domain;
246 network_info->identity_info.parameter_control = logon_parameters;
247 network_info->identity_info.logon_id_low = 0xdead;
248 network_info->identity_info.logon_id_high = 0xbeef;
249 network_info->identity_info.account_name.string = username;
250 network_info->identity_info.workstation.string = clnt_name_slash;
252 memcpy(network_info->challenge, chal, 8);
253 network_info->nt = nt;
254 network_info->lm = lm;
256 logon->network = network_info;
261 DEBUG(0, ("switch value %d not supported\n",
263 return NT_STATUS_INVALID_INFO_CLASS;
266 result = rpccli_netr_LogonSamLogon(cli, mem_ctx,
277 /* Always check returned credentials */
278 if (!netlogon_creds_client_check(cli->dc, &ret_creds.cred)) {
279 DEBUG(0,("rpccli_netlogon_sam_logon: credentials chain check failed\n"));
280 return NT_STATUS_ACCESS_DENIED;
288 * Logon domain user with an 'network' SAM logon
290 * @param info3 Pointer to a NET_USER_INFO_3 already allocated by the caller.
293 NTSTATUS rpccli_netlogon_sam_network_logon(struct rpc_pipe_client *cli,
295 uint32 logon_parameters,
297 const char *username,
299 const char *workstation,
301 DATA_BLOB lm_response,
302 DATA_BLOB nt_response,
303 struct netr_SamInfo3 **info3)
305 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
306 int validation_level = 3;
307 const char *workstation_name_slash;
308 const char *server_name_slash;
309 struct netr_Authenticator clnt_creds;
310 struct netr_Authenticator ret_creds;
311 union netr_LogonLevel *logon = NULL;
312 struct netr_NetworkInfo *network_info;
313 uint8_t authoritative;
314 union netr_Validation validation;
315 struct netr_ChallengeResponse lm;
316 struct netr_ChallengeResponse nt;
320 ZERO_STRUCT(ret_creds);
325 logon = TALLOC_ZERO_P(mem_ctx, union netr_LogonLevel);
327 return NT_STATUS_NO_MEMORY;
330 network_info = TALLOC_ZERO_P(mem_ctx, struct netr_NetworkInfo);
332 return NT_STATUS_NO_MEMORY;
335 netlogon_creds_client_authenticator(cli->dc, &clnt_creds);
337 if (server[0] != '\\' && server[1] != '\\') {
338 server_name_slash = talloc_asprintf(mem_ctx, "\\\\%s", server);
340 server_name_slash = server;
343 if (workstation[0] != '\\' && workstation[1] != '\\') {
344 workstation_name_slash = talloc_asprintf(mem_ctx, "\\\\%s", workstation);
346 workstation_name_slash = workstation;
349 if (!workstation_name_slash || !server_name_slash) {
350 DEBUG(0, ("talloc_asprintf failed!\n"));
351 return NT_STATUS_NO_MEMORY;
354 /* Initialise input parameters */
356 lm.data = lm_response.data;
357 lm.length = lm_response.length;
358 nt.data = nt_response.data;
359 nt.length = nt_response.length;
361 network_info->identity_info.domain_name.string = domain;
362 network_info->identity_info.parameter_control = logon_parameters;
363 network_info->identity_info.logon_id_low = 0xdead;
364 network_info->identity_info.logon_id_high = 0xbeef;
365 network_info->identity_info.account_name.string = username;
366 network_info->identity_info.workstation.string = workstation_name_slash;
368 memcpy(network_info->challenge, chal, 8);
369 network_info->nt = nt;
370 network_info->lm = lm;
372 logon->network = network_info;
374 /* Marshall data and send request */
376 result = rpccli_netr_LogonSamLogon(cli, mem_ctx,
381 NetlogonNetworkInformation,
386 if (!NT_STATUS_IS_OK(result)) {
390 /* Always check returned credentials. */
391 if (!netlogon_creds_client_check(cli->dc, &ret_creds.cred)) {
392 DEBUG(0,("rpccli_netlogon_sam_network_logon: credentials chain check failed\n"));
393 return NT_STATUS_ACCESS_DENIED;
396 netlogon_creds_decrypt_samlogon(cli->dc, validation_level, &validation);
398 *info3 = validation.sam3;
403 NTSTATUS rpccli_netlogon_sam_network_logon_ex(struct rpc_pipe_client *cli,
405 uint32 logon_parameters,
407 const char *username,
409 const char *workstation,
411 DATA_BLOB lm_response,
412 DATA_BLOB nt_response,
413 struct netr_SamInfo3 **info3)
415 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
416 int validation_level = 3;
417 const char *workstation_name_slash;
418 const char *server_name_slash;
419 union netr_LogonLevel *logon = NULL;
420 struct netr_NetworkInfo *network_info;
421 uint8_t authoritative;
422 union netr_Validation validation;
423 struct netr_ChallengeResponse lm;
424 struct netr_ChallengeResponse nt;
432 logon = TALLOC_ZERO_P(mem_ctx, union netr_LogonLevel);
434 return NT_STATUS_NO_MEMORY;
437 network_info = TALLOC_ZERO_P(mem_ctx, struct netr_NetworkInfo);
439 return NT_STATUS_NO_MEMORY;
442 if (server[0] != '\\' && server[1] != '\\') {
443 server_name_slash = talloc_asprintf(mem_ctx, "\\\\%s", server);
445 server_name_slash = server;
448 if (workstation[0] != '\\' && workstation[1] != '\\') {
449 workstation_name_slash = talloc_asprintf(mem_ctx, "\\\\%s", workstation);
451 workstation_name_slash = workstation;
454 if (!workstation_name_slash || !server_name_slash) {
455 DEBUG(0, ("talloc_asprintf failed!\n"));
456 return NT_STATUS_NO_MEMORY;
459 /* Initialise input parameters */
461 lm.data = lm_response.data;
462 lm.length = lm_response.length;
463 nt.data = nt_response.data;
464 nt.length = nt_response.length;
466 network_info->identity_info.domain_name.string = domain;
467 network_info->identity_info.parameter_control = logon_parameters;
468 network_info->identity_info.logon_id_low = 0xdead;
469 network_info->identity_info.logon_id_high = 0xbeef;
470 network_info->identity_info.account_name.string = username;
471 network_info->identity_info.workstation.string = workstation_name_slash;
473 memcpy(network_info->challenge, chal, 8);
474 network_info->nt = nt;
475 network_info->lm = lm;
477 logon->network = network_info;
479 /* Marshall data and send request */
481 result = rpccli_netr_LogonSamLogonEx(cli, mem_ctx,
484 NetlogonNetworkInformation,
490 if (!NT_STATUS_IS_OK(result)) {
494 netlogon_creds_decrypt_samlogon(cli->dc, validation_level, &validation);
496 *info3 = validation.sam3;
501 /*********************************************************
502 Change the domain password on the PDC.
504 Just changes the password betwen the two values specified.
506 Caller must have the cli connected to the netlogon pipe
508 **********************************************************/
510 NTSTATUS rpccli_netlogon_set_trust_password(struct rpc_pipe_client *cli,
512 const char *account_name,
513 const unsigned char orig_trust_passwd_hash[16],
514 const char *new_trust_pwd_cleartext,
515 const unsigned char new_trust_passwd_hash[16],
516 enum netr_SchannelType sec_channel_type)
519 struct netr_Authenticator clnt_creds, srv_cred;
522 uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
523 result = rpccli_netlogon_setup_creds(cli,
524 cli->desthost, /* server name */
525 lp_workgroup(), /* domain */
526 global_myname(), /* client name */
527 account_name, /* machine account name */
528 orig_trust_passwd_hash,
531 if (!NT_STATUS_IS_OK(result)) {
532 DEBUG(3,("rpccli_netlogon_set_trust_password: unable to setup creds (%s)!\n",
538 netlogon_creds_client_authenticator(cli->dc, &clnt_creds);
540 if (cli->dc->negotiate_flags & NETLOGON_NEG_PASSWORD_SET2) {
542 struct netr_CryptPassword new_password;
544 init_netr_CryptPassword(new_trust_pwd_cleartext,
545 cli->dc->session_key,
548 result = rpccli_netr_ServerPasswordSet2(cli, mem_ctx,
550 cli->dc->account_name,
552 cli->dc->computer_name,
556 if (!NT_STATUS_IS_OK(result)) {
557 DEBUG(0,("rpccli_netr_ServerPasswordSet2 failed: %s\n",
563 struct samr_Password new_password;
564 memcpy(new_password.hash, new_trust_passwd_hash, sizeof(new_password.hash));
565 netlogon_creds_des_encrypt(cli->dc, &new_password);
567 result = rpccli_netr_ServerPasswordSet(cli, mem_ctx,
569 cli->dc->account_name,
571 cli->dc->computer_name,
575 if (!NT_STATUS_IS_OK(result)) {
576 DEBUG(0,("rpccli_netr_ServerPasswordSet failed: %s\n",
582 /* Always check returned credentials. */
583 if (!netlogon_creds_client_check(cli->dc, &srv_cred.cred)) {
584 DEBUG(0,("credentials chain check failed\n"));
585 return NT_STATUS_ACCESS_DENIED;