2 Unix SMB/CIFS implementation.
3 NT Domain Authentication SMB / MSRPC client
4 Copyright (C) Andrew Tridgell 1992-2000
5 Copyright (C) Luke Kenneth Casson Leighton 1996-2000
6 Copyright (C) Tim Potter 2001
7 Copyright (C) Paul Ashton 1997.
8 Copyright (C) Jeremy Allison 1998.
9 Copyright (C) Andrew Bartlett 2001.
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 2 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, write to the Free Software
23 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 /* LSA Request Challenge. Sends our challenge to server, then gets
29 server response. These are used to generate the credentials. */
31 NTSTATUS cli_net_req_chal(struct cli_state *cli, DOM_CHAL *clnt_chal,
34 prs_struct qbuf, rbuf;
37 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
39 prs_init(&qbuf, MAX_PDU_FRAG_LEN, cli->mem_ctx, MARSHALL);
40 prs_init(&rbuf, 0, cli->mem_ctx, UNMARSHALL);
42 /* create and send a MSRPC command with api NET_REQCHAL */
44 DEBUG(4,("cli_net_req_chal: LSA Request Challenge from %s to %s: %s\n",
45 global_myname(), cli->desthost, credstr(clnt_chal->data)));
47 /* store the parameters */
48 init_q_req_chal(&q, cli->srv_name_slash, global_myname(), clnt_chal);
50 /* Marshall data and send request */
52 if (!net_io_q_req_chal("", &q, &qbuf, 0) ||
53 !rpc_api_pipe_req(cli, NET_REQCHAL, &qbuf, &rbuf)) {
57 /* Unmarhall response */
59 if (!net_io_r_req_chal("", &r, &rbuf, 0)) {
67 if (NT_STATUS_IS_OK(result)) {
68 memcpy(srv_chal, r.srv_chal.data, sizeof(srv_chal->data));
78 /****************************************************************************
81 Send the client credential, receive back a server credential.
82 Ensure that the server credential returned matches the session key
83 encrypt of the server challenge originally received. JRA.
84 ****************************************************************************/
86 NTSTATUS cli_net_auth2(struct cli_state *cli,
88 uint32 *neg_flags, DOM_CHAL *srv_chal)
90 prs_struct qbuf, rbuf;
93 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
95 prs_init(&qbuf, MAX_PDU_FRAG_LEN, cli->mem_ctx, MARSHALL);
96 prs_init(&rbuf, 0, cli->mem_ctx, UNMARSHALL);
98 /* create and send a MSRPC command with api NET_AUTH2 */
100 DEBUG(4,("cli_net_auth2: srv:%s acct:%s sc:%x mc: %s chal %s neg: %x\n",
101 cli->srv_name_slash, cli->mach_acct, sec_chan, global_myname(),
102 credstr(cli->clnt_cred.challenge.data), neg_flags));
104 /* store the parameters */
105 init_q_auth_2(&q, cli->srv_name_slash, cli->mach_acct,
106 sec_chan, global_myname(), &cli->clnt_cred.challenge,
109 /* turn parameters into data stream */
111 if (!net_io_q_auth_2("", &q, &qbuf, 0) ||
112 !rpc_api_pipe_req(cli, NET_AUTH2, &qbuf, &rbuf)) {
116 /* Unmarshall response */
118 if (!net_io_r_auth_2("", &r, &rbuf, 0)) {
124 if (NT_STATUS_IS_OK(result)) {
128 * Check the returned value using the initial
129 * server received challenge.
133 if (cred_assert( &r.srv_chal, cli->sess_key, srv_chal,
137 * Server replied with bad credential. Fail.
139 DEBUG(0,("cli_net_auth2: server %s replied with bad credential (bad machine \
140 password ?).\n", cli->desthost ));
141 result = NT_STATUS_ACCESS_DENIED;
144 *neg_flags = r.srv_flgs.neg_flags;
154 /****************************************************************************
157 Send the client credential, receive back a server credential.
158 Ensure that the server credential returned matches the session key
159 encrypt of the server challenge originally received. JRA.
160 ****************************************************************************/
162 NTSTATUS cli_net_auth3(struct cli_state *cli,
164 uint32 *neg_flags, DOM_CHAL *srv_chal)
166 prs_struct qbuf, rbuf;
169 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
171 prs_init(&qbuf, MAX_PDU_FRAG_LEN, cli->mem_ctx, MARSHALL);
172 prs_init(&rbuf, 0, cli->mem_ctx, UNMARSHALL);
174 /* create and send a MSRPC command with api NET_AUTH2 */
176 DEBUG(4,("cli_net_auth3: srv:%s acct:%s sc:%x mc: %s chal %s neg: %x\n",
177 cli->srv_name_slash, cli->mach_acct, sec_chan, global_myname(),
178 credstr(cli->clnt_cred.challenge.data), *neg_flags));
180 /* store the parameters */
181 init_q_auth_3(&q, cli->srv_name_slash, cli->mach_acct,
182 sec_chan, global_myname(), &cli->clnt_cred.challenge,
185 /* turn parameters into data stream */
187 if (!net_io_q_auth_3("", &q, &qbuf, 0) ||
188 !rpc_api_pipe_req(cli, NET_AUTH3, &qbuf, &rbuf)) {
192 /* Unmarshall response */
194 if (!net_io_r_auth_3("", &r, &rbuf, 0)) {
200 if (NT_STATUS_IS_OK(result)) {
204 * Check the returned value using the initial
205 * server received challenge.
209 if (cred_assert( &r.srv_chal, cli->sess_key, srv_chal,
213 * Server replied with bad credential. Fail.
215 DEBUG(0,("cli_net_auth3: server %s replied with bad credential (bad machine \
216 password ?).\n", cli->desthost ));
217 result = NT_STATUS_ACCESS_DENIED;
220 *neg_flags = r.srv_flgs.neg_flags;
230 /* Return the secure channel type depending on the server role. */
232 uint16 get_sec_chan(void)
234 uint16 sec_chan = SEC_CHAN_WKSTA;
236 switch (lp_server_role()) {
237 case ROLE_DOMAIN_PDC:
238 sec_chan = SEC_CHAN_DOMAIN;
240 case ROLE_DOMAIN_BDC:
241 sec_chan = SEC_CHAN_BDC;
248 /* Initialize domain session credentials */
250 NTSTATUS cli_nt_setup_creds(struct cli_state *cli,
252 const unsigned char mach_pwd[16], uint32 *neg_flags, int level)
259 /******************* Request Challenge ********************/
261 generate_random_buffer(clnt_chal.data, 8, False);
263 /* send a client challenge; receive a server challenge */
264 result = cli_net_req_chal(cli, &clnt_chal, &srv_chal);
266 if (!NT_STATUS_IS_OK(result)) {
267 DEBUG(0,("cli_nt_setup_creds: request challenge failed\n"));
271 /**************** Long-term Session key **************/
273 /* calculate the session key */
274 cred_session_key(&clnt_chal, &srv_chal, mach_pwd,
276 memset((char *)cli->sess_key+8, '\0', 8);
278 /******************* Authenticate 2/3 ********************/
280 /* calculate auth-2/3 credentials */
282 cred_create(cli->sess_key, &clnt_chal, zerotime, &cli->clnt_cred.challenge);
285 * Send client auth-2/3 challenge.
286 * Receive an auth-2/3 challenge response and check it.
290 result = cli_net_auth2(cli, sec_chan, neg_flags, &srv_chal);
293 result = cli_net_auth3(cli, sec_chan, neg_flags, &srv_chal);
296 DEBUG(1,("cli_nt_setup_creds: unsupported auth level: %d\n", level));
300 if (!NT_STATUS_IS_OK(result))
301 DEBUG(1,("cli_nt_setup_creds: auth%d challenge failed %s\n", level, nt_errstr(result)));
306 /* Logon Control 2 */
308 NTSTATUS cli_netlogon_logon_ctrl2(struct cli_state *cli, TALLOC_CTX *mem_ctx,
311 prs_struct qbuf, rbuf;
314 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
319 /* Initialise parse structures */
321 prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
322 prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);
324 /* Initialise input parameters */
326 init_net_q_logon_ctrl2(&q, cli->srv_name_slash, query_level);
328 /* Marshall data and send request */
330 if (!net_io_q_logon_ctrl2("", &q, &qbuf, 0) ||
331 !rpc_api_pipe_req(cli, NET_LOGON_CTRL2, &qbuf, &rbuf)) {
332 result = NT_STATUS_UNSUCCESSFUL;
336 /* Unmarshall response */
338 if (!net_io_r_logon_ctrl2("", &r, &rbuf, 0)) {
339 result = NT_STATUS_UNSUCCESSFUL;
352 /****************************************************************************
353 Generate the next creds to use. Yuck - this is a cut&paste from another
354 file. They should be combined at some stage. )-:
355 ****************************************************************************/
357 static void gen_next_creds( struct cli_state *cli, DOM_CRED *new_clnt_cred)
360 * Create the new client credentials.
363 cli->clnt_cred.timestamp.time = time(NULL);
365 memcpy(new_clnt_cred, &cli->clnt_cred, sizeof(*new_clnt_cred));
367 /* Calculate the new credentials. */
368 cred_create(cli->sess_key, &(cli->clnt_cred.challenge),
369 new_clnt_cred->timestamp, &(new_clnt_cred->challenge));
372 /* Sam synchronisation */
374 NTSTATUS cli_netlogon_sam_sync(struct cli_state *cli, TALLOC_CTX *mem_ctx, DOM_CRED *ret_creds,
375 uint32 database_id, uint32 next_rid, uint32 *num_deltas,
376 SAM_DELTA_HDR **hdr_deltas,
377 SAM_DELTA_CTR **deltas)
379 prs_struct qbuf, rbuf;
382 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
388 /* Initialise parse structures */
390 prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
391 prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);
393 /* Initialise input parameters */
395 gen_next_creds(cli, &clnt_creds);
397 init_net_q_sam_sync(&q, cli->srv_name_slash, cli->clnt_name_slash + 2,
398 &clnt_creds, ret_creds, database_id, next_rid);
400 /* Marshall data and send request */
402 if (!net_io_q_sam_sync("", &q, &qbuf, 0) ||
403 !rpc_api_pipe_req(cli, NET_SAM_SYNC, &qbuf, &rbuf)) {
404 result = NT_STATUS_UNSUCCESSFUL;
408 /* Unmarshall response */
410 if (!net_io_r_sam_sync("", cli->sess_key, &r, &rbuf, 0)) {
411 result = NT_STATUS_UNSUCCESSFUL;
418 *num_deltas = r.num_deltas2;
419 *hdr_deltas = r.hdr_deltas;
422 memcpy(ret_creds, &r.srv_creds, sizeof(*ret_creds));
431 /* Sam synchronisation */
433 NTSTATUS cli_netlogon_sam_deltas(struct cli_state *cli, TALLOC_CTX *mem_ctx,
434 uint32 database_id, UINT64_S seqnum,
436 SAM_DELTA_HDR **hdr_deltas,
437 SAM_DELTA_CTR **deltas)
439 prs_struct qbuf, rbuf;
442 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
448 /* Initialise parse structures */
450 prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
451 prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);
453 /* Initialise input parameters */
455 gen_next_creds(cli, &clnt_creds);
457 init_net_q_sam_deltas(&q, cli->srv_name_slash,
458 cli->clnt_name_slash + 2, &clnt_creds,
459 database_id, seqnum);
461 /* Marshall data and send request */
463 if (!net_io_q_sam_deltas("", &q, &qbuf, 0) ||
464 !rpc_api_pipe_req(cli, NET_SAM_DELTAS, &qbuf, &rbuf)) {
465 result = NT_STATUS_UNSUCCESSFUL;
469 /* Unmarshall response */
471 if (!net_io_r_sam_deltas("", cli->sess_key, &r, &rbuf, 0)) {
472 result = NT_STATUS_UNSUCCESSFUL;
479 *num_deltas = r.num_deltas2;
480 *hdr_deltas = r.hdr_deltas;
490 /* Logon domain user */
492 NTSTATUS cli_netlogon_sam_logon(struct cli_state *cli, TALLOC_CTX *mem_ctx,
493 const char *username, const char *password,
496 prs_struct qbuf, rbuf;
499 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
500 DOM_CRED clnt_creds, dummy_rtn_creds;
502 NET_USER_INFO_3 user;
503 int validation_level = 3;
508 /* Initialise parse structures */
510 prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
511 prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);
513 /* Initialise input parameters */
515 gen_next_creds(cli, &clnt_creds);
517 q.validation_level = validation_level;
519 memset(&dummy_rtn_creds, '\0', sizeof(dummy_rtn_creds));
520 dummy_rtn_creds.timestamp.time = time(NULL);
522 ctr.switch_value = logon_type;
524 switch (logon_type) {
525 case INTERACTIVE_LOGON_TYPE: {
526 unsigned char lm_owf_user_pwd[16], nt_owf_user_pwd[16];
528 nt_lm_owf_gen(password, nt_owf_user_pwd, lm_owf_user_pwd);
530 init_id_info1(&ctr.auth.id1, lp_workgroup(),
532 0xdead, 0xbeef, /* LUID? */
533 username, cli->clnt_name_slash,
534 cli->sess_key, lm_owf_user_pwd,
539 case NET_LOGON_TYPE: {
541 unsigned char local_lm_response[24];
542 unsigned char local_nt_response[24];
544 generate_random_buffer(chal, 8, False);
546 SMBencrypt(password, chal, local_lm_response);
547 SMBNTencrypt(password, chal, local_nt_response);
549 init_id_info2(&ctr.auth.id2, lp_workgroup(),
551 0xdead, 0xbeef, /* LUID? */
552 username, cli->clnt_name_slash, chal,
553 local_lm_response, 24, local_nt_response, 24);
557 DEBUG(0, ("switch value %d not supported\n",
562 init_sam_info(&q.sam_id, cli->srv_name_slash, global_myname(),
563 &clnt_creds, &dummy_rtn_creds, logon_type,
566 /* Marshall data and send request */
568 if (!net_io_q_sam_logon("", &q, &qbuf, 0) ||
569 !rpc_api_pipe_req(cli, NET_SAMLOGON, &qbuf, &rbuf)) {
573 /* Unmarshall response */
577 if (!net_io_r_sam_logon("", &r, &rbuf, 0)) {
594 * Logon domain user with an 'network' SAM logon
596 * @param info3 Pointer to a NET_USER_INFO_3 already allocated by the caller.
599 NTSTATUS cli_netlogon_sam_network_logon(struct cli_state *cli, TALLOC_CTX *mem_ctx,
600 const char *username, const char *domain, const char *workstation,
602 DATA_BLOB lm_response, DATA_BLOB nt_response,
603 NET_USER_INFO_3 *info3)
606 prs_struct qbuf, rbuf;
609 NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
610 DOM_CRED clnt_creds, dummy_rtn_creds;
612 int validation_level = 3;
613 char *workstation_name_slash;
614 uint8 netlogon_sess_key[16];
615 static uint8 zeros[16];
620 workstation_name_slash = talloc_asprintf(mem_ctx, "\\\\%s", workstation);
622 if (!workstation_name_slash) {
623 DEBUG(0, ("talloc_asprintf failed!\n"));
624 return NT_STATUS_NO_MEMORY;
627 /* Initialise parse structures */
629 prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
630 prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);
632 /* Initialise input parameters */
634 gen_next_creds(cli, &clnt_creds);
636 q.validation_level = validation_level;
638 memset(&dummy_rtn_creds, '\0', sizeof(dummy_rtn_creds));
639 dummy_rtn_creds.timestamp.time = time(NULL);
641 ctr.switch_value = NET_LOGON_TYPE;
643 init_id_info2(&ctr.auth.id2, domain,
645 0xdead, 0xbeef, /* LUID? */
646 username, workstation_name_slash, (const uchar*)chal,
647 lm_response.data, lm_response.length, nt_response.data, nt_response.length);
649 init_sam_info(&q.sam_id, cli->srv_name_slash, global_myname(),
650 &clnt_creds, &dummy_rtn_creds, NET_LOGON_TYPE,
653 /* Marshall data and send request */
655 if (!net_io_q_sam_logon("", &q, &qbuf, 0) ||
656 !rpc_api_pipe_req(cli, NET_SAMLOGON, &qbuf, &rbuf)) {
660 /* Unmarshall response */
664 if (!net_io_r_sam_logon("", &r, &rbuf, 0)) {
668 ZERO_STRUCT(netlogon_sess_key);
669 memcpy(netlogon_sess_key, cli->sess_key, 8);
671 if (memcmp(zeros, info3->user_sess_key, 16) != 0)
672 SamOEMhash(info3->user_sess_key, netlogon_sess_key, 16);
674 if (memcmp(zeros, info3->padding, 16) != 0)
675 SamOEMhash(info3->padding, netlogon_sess_key, 16);
688 /***************************************************************************
689 LSA Server Password Set.
690 ****************************************************************************/
692 NTSTATUS cli_net_srv_pwset(struct cli_state *cli, TALLOC_CTX *mem_ctx,
693 const char *machine_name, uint8 hashed_mach_pwd[16])
697 DOM_CRED new_clnt_cred;
699 uint16 sec_chan_type = 2;
703 gen_next_creds( cli, &new_clnt_cred);
705 prs_init(&qbuf , 1024, mem_ctx, MARSHALL);
706 prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);
708 /* create and send a MSRPC command with api NET_SRV_PWSET */
710 mach_acct = talloc_asprintf(mem_ctx, "%s$", machine_name);
713 DEBUG(0,("talloc_asprintf failed!\n"));
714 nt_status = NT_STATUS_NO_MEMORY;
718 DEBUG(4,("cli_net_srv_pwset: srv:%s acct:%s sc: %d mc: %s clnt %s %x\n",
719 cli->srv_name_slash, mach_acct, sec_chan_type, machine_name,
720 credstr(new_clnt_cred.challenge.data), new_clnt_cred.timestamp.time));
722 /* store the parameters */
723 init_q_srv_pwset(&q_s, cli->srv_name_slash, cli->sess_key,
724 mach_acct, sec_chan_type, machine_name,
725 &new_clnt_cred, (char *)hashed_mach_pwd);
727 /* turn parameters into data stream */
728 if(!net_io_q_srv_pwset("", &q_s, &qbuf, 0)) {
729 DEBUG(0,("cli_net_srv_pwset: Error : failed to marshall NET_Q_SRV_PWSET struct.\n"));
730 nt_status = NT_STATUS_UNSUCCESSFUL;
734 /* send the data on \PIPE\ */
735 if (rpc_api_pipe_req(cli, NET_SRVPWSET, &qbuf, &rbuf))
739 if (!net_io_r_srv_pwset("", &r_s, &rbuf, 0)) {
740 nt_status = NT_STATUS_UNSUCCESSFUL;
744 nt_status = r_s.status;
746 if (!NT_STATUS_IS_OK(r_s.status))
748 /* report error code */
749 DEBUG(0,("cli_net_srv_pwset: %s\n", nt_errstr(nt_status)));
753 /* Update the credentials. */
754 if (!clnt_deal_with_creds(cli->sess_key, &(cli->clnt_cred), &(r_s.srv_cred)))
757 * Server replied with bad credential. Fail.
759 DEBUG(0,("cli_net_srv_pwset: server %s replied with bad credential (bad machine \
760 password ?).\n", cli->desthost ));
761 nt_status = NT_STATUS_UNSUCCESSFUL;