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 /* Initialize domain session credentials */
232 NTSTATUS
cli_nt_setup_creds(struct cli_state
*cli
,
234 const unsigned char mach_pwd
[16], uint32
*neg_flags
, int level
)
241 /******************* Request Challenge ********************/
243 generate_random_buffer(clnt_chal
.data
, 8, False
);
245 /* send a client challenge; receive a server challenge */
246 result
= cli_net_req_chal(cli
, &clnt_chal
, &srv_chal
);
248 if (!NT_STATUS_IS_OK(result
)) {
249 DEBUG(0,("cli_nt_setup_creds: request challenge failed\n"));
253 /**************** Long-term Session key **************/
255 /* calculate the session key */
256 cred_session_key(&clnt_chal
, &srv_chal
, mach_pwd
,
258 memset((char *)cli
->sess_key
+8, '\0', 8);
260 /******************* Authenticate 2/3 ********************/
262 /* calculate auth-2/3 credentials */
264 cred_create(cli
->sess_key
, &clnt_chal
, zerotime
, &cli
->clnt_cred
.challenge
);
267 * Send client auth-2/3 challenge.
268 * Receive an auth-2/3 challenge response and check it.
272 result
= cli_net_auth2(cli
, sec_chan
, neg_flags
, &srv_chal
);
275 result
= cli_net_auth3(cli
, sec_chan
, neg_flags
, &srv_chal
);
278 DEBUG(1,("cli_nt_setup_creds: unsupported auth level: %d\n", level
));
282 if (!NT_STATUS_IS_OK(result
))
283 DEBUG(3,("cli_nt_setup_creds: auth%d challenge failed %s\n", level
, nt_errstr(result
)));
288 /* Logon Control 2 */
290 NTSTATUS
cli_netlogon_logon_ctrl2(struct cli_state
*cli
, TALLOC_CTX
*mem_ctx
,
293 prs_struct qbuf
, rbuf
;
296 NTSTATUS result
= NT_STATUS_UNSUCCESSFUL
;
301 /* Initialise parse structures */
303 prs_init(&qbuf
, MAX_PDU_FRAG_LEN
, mem_ctx
, MARSHALL
);
304 prs_init(&rbuf
, 0, mem_ctx
, UNMARSHALL
);
306 /* Initialise input parameters */
308 init_net_q_logon_ctrl2(&q
, cli
->srv_name_slash
, query_level
);
310 /* Marshall data and send request */
312 if (!net_io_q_logon_ctrl2("", &q
, &qbuf
, 0) ||
313 !rpc_api_pipe_req(cli
, NET_LOGON_CTRL2
, &qbuf
, &rbuf
)) {
314 result
= NT_STATUS_UNSUCCESSFUL
;
318 /* Unmarshall response */
320 if (!net_io_r_logon_ctrl2("", &r
, &rbuf
, 0)) {
321 result
= NT_STATUS_UNSUCCESSFUL
;
334 /****************************************************************************
335 Generate the next creds to use.
336 ****************************************************************************/
338 static void gen_next_creds( struct cli_state
*cli
, DOM_CRED
*new_clnt_cred
)
341 * Create the new client credentials.
344 cli
->clnt_cred
.timestamp
.time
= time(NULL
);
346 memcpy(new_clnt_cred
, &cli
->clnt_cred
, sizeof(*new_clnt_cred
));
348 /* Calculate the new credentials. */
349 cred_create(cli
->sess_key
, &(cli
->clnt_cred
.challenge
),
350 new_clnt_cred
->timestamp
, &(new_clnt_cred
->challenge
));
353 /* Sam synchronisation */
355 NTSTATUS
cli_netlogon_sam_sync(struct cli_state
*cli
, TALLOC_CTX
*mem_ctx
, DOM_CRED
*ret_creds
,
356 uint32 database_id
, uint32 next_rid
, uint32
*num_deltas
,
357 SAM_DELTA_HDR
**hdr_deltas
,
358 SAM_DELTA_CTR
**deltas
)
360 prs_struct qbuf
, rbuf
;
363 NTSTATUS result
= NT_STATUS_UNSUCCESSFUL
;
369 /* Initialise parse structures */
371 prs_init(&qbuf
, MAX_PDU_FRAG_LEN
, mem_ctx
, MARSHALL
);
372 prs_init(&rbuf
, 0, mem_ctx
, UNMARSHALL
);
374 /* Initialise input parameters */
376 gen_next_creds(cli
, &clnt_creds
);
378 init_net_q_sam_sync(&q
, cli
->srv_name_slash
, cli
->clnt_name_slash
+ 2,
379 &clnt_creds
, ret_creds
, database_id
, next_rid
);
381 /* Marshall data and send request */
383 if (!net_io_q_sam_sync("", &q
, &qbuf
, 0) ||
384 !rpc_api_pipe_req(cli
, NET_SAM_SYNC
, &qbuf
, &rbuf
)) {
385 result
= NT_STATUS_UNSUCCESSFUL
;
389 /* Unmarshall response */
391 if (!net_io_r_sam_sync("", cli
->sess_key
, &r
, &rbuf
, 0)) {
392 result
= NT_STATUS_UNSUCCESSFUL
;
399 *num_deltas
= r
.num_deltas2
;
400 *hdr_deltas
= r
.hdr_deltas
;
403 memcpy(ret_creds
, &r
.srv_creds
, sizeof(*ret_creds
));
412 /* Sam synchronisation */
414 NTSTATUS
cli_netlogon_sam_deltas(struct cli_state
*cli
, TALLOC_CTX
*mem_ctx
,
415 uint32 database_id
, UINT64_S seqnum
,
417 SAM_DELTA_HDR
**hdr_deltas
,
418 SAM_DELTA_CTR
**deltas
)
420 prs_struct qbuf
, rbuf
;
423 NTSTATUS result
= NT_STATUS_UNSUCCESSFUL
;
429 /* Initialise parse structures */
431 prs_init(&qbuf
, MAX_PDU_FRAG_LEN
, mem_ctx
, MARSHALL
);
432 prs_init(&rbuf
, 0, mem_ctx
, UNMARSHALL
);
434 /* Initialise input parameters */
436 gen_next_creds(cli
, &clnt_creds
);
438 init_net_q_sam_deltas(&q
, cli
->srv_name_slash
,
439 cli
->clnt_name_slash
+ 2, &clnt_creds
,
440 database_id
, seqnum
);
442 /* Marshall data and send request */
444 if (!net_io_q_sam_deltas("", &q
, &qbuf
, 0) ||
445 !rpc_api_pipe_req(cli
, NET_SAM_DELTAS
, &qbuf
, &rbuf
)) {
446 result
= NT_STATUS_UNSUCCESSFUL
;
450 /* Unmarshall response */
452 if (!net_io_r_sam_deltas("", cli
->sess_key
, &r
, &rbuf
, 0)) {
453 result
= NT_STATUS_UNSUCCESSFUL
;
460 *num_deltas
= r
.num_deltas2
;
461 *hdr_deltas
= r
.hdr_deltas
;
471 /* Logon domain user */
473 NTSTATUS
cli_netlogon_sam_logon(struct cli_state
*cli
, TALLOC_CTX
*mem_ctx
,
475 const char *username
, const char *password
,
478 prs_struct qbuf
, rbuf
;
481 NTSTATUS result
= NT_STATUS_UNSUCCESSFUL
;
482 DOM_CRED clnt_creds
, dummy_rtn_creds
;
484 NET_USER_INFO_3 user
;
485 int validation_level
= 3;
489 ZERO_STRUCT(dummy_rtn_creds
);
491 /* Initialise parse structures */
493 prs_init(&qbuf
, MAX_PDU_FRAG_LEN
, mem_ctx
, MARSHALL
);
494 prs_init(&rbuf
, 0, mem_ctx
, UNMARSHALL
);
496 /* Initialise input parameters */
498 gen_next_creds(cli
, &clnt_creds
);
500 q
.validation_level
= validation_level
;
502 if (ret_creds
== NULL
)
503 ret_creds
= &dummy_rtn_creds
;
505 ctr
.switch_value
= logon_type
;
507 switch (logon_type
) {
508 case INTERACTIVE_LOGON_TYPE
: {
509 unsigned char lm_owf_user_pwd
[16], nt_owf_user_pwd
[16];
511 nt_lm_owf_gen(password
, nt_owf_user_pwd
, lm_owf_user_pwd
);
513 init_id_info1(&ctr
.auth
.id1
, lp_workgroup(),
515 0xdead, 0xbeef, /* LUID? */
516 username
, cli
->clnt_name_slash
,
517 (const char *)cli
->sess_key
, lm_owf_user_pwd
,
522 case NET_LOGON_TYPE
: {
524 unsigned char local_lm_response
[24];
525 unsigned char local_nt_response
[24];
527 generate_random_buffer(chal
, 8, False
);
529 SMBencrypt(password
, chal
, local_lm_response
);
530 SMBNTencrypt(password
, chal
, local_nt_response
);
532 init_id_info2(&ctr
.auth
.id2
, lp_workgroup(),
534 0xdead, 0xbeef, /* LUID? */
535 username
, cli
->clnt_name_slash
, chal
,
536 local_lm_response
, 24, local_nt_response
, 24);
540 DEBUG(0, ("switch value %d not supported\n",
545 init_sam_info(&q
.sam_id
, cli
->srv_name_slash
, global_myname(),
546 &clnt_creds
, ret_creds
, logon_type
,
549 /* Marshall data and send request */
551 if (!net_io_q_sam_logon("", &q
, &qbuf
, 0) ||
552 !rpc_api_pipe_req(cli
, NET_SAMLOGON
, &qbuf
, &rbuf
)) {
556 /* Unmarshall response */
560 if (!net_io_r_sam_logon("", &r
, &rbuf
, 0)) {
567 memcpy(ret_creds
, &r
.srv_creds
, sizeof(*ret_creds
));
578 * Logon domain user with an 'network' SAM logon
580 * @param info3 Pointer to a NET_USER_INFO_3 already allocated by the caller.
583 NTSTATUS
cli_netlogon_sam_network_logon(struct cli_state
*cli
, TALLOC_CTX
*mem_ctx
,
585 const char *username
, const char *domain
, const char *workstation
,
587 DATA_BLOB lm_response
, DATA_BLOB nt_response
,
588 NET_USER_INFO_3
*info3
)
591 prs_struct qbuf
, rbuf
;
594 NTSTATUS result
= NT_STATUS_UNSUCCESSFUL
;
595 DOM_CRED clnt_creds
, dummy_rtn_creds
;
597 int validation_level
= 3;
598 char *workstation_name_slash
;
599 uint8 netlogon_sess_key
[16];
600 static uint8 zeros
[16];
604 ZERO_STRUCT(dummy_rtn_creds
);
606 workstation_name_slash
= talloc_asprintf(mem_ctx
, "\\\\%s", workstation
);
608 if (!workstation_name_slash
) {
609 DEBUG(0, ("talloc_asprintf failed!\n"));
610 return NT_STATUS_NO_MEMORY
;
613 /* Initialise parse structures */
615 prs_init(&qbuf
, MAX_PDU_FRAG_LEN
, mem_ctx
, MARSHALL
);
616 prs_init(&rbuf
, 0, mem_ctx
, UNMARSHALL
);
618 /* Initialise input parameters */
620 gen_next_creds(cli
, &clnt_creds
);
622 q
.validation_level
= validation_level
;
624 if (ret_creds
== NULL
)
625 ret_creds
= &dummy_rtn_creds
;
627 ctr
.switch_value
= NET_LOGON_TYPE
;
629 init_id_info2(&ctr
.auth
.id2
, domain
,
631 0xdead, 0xbeef, /* LUID? */
632 username
, workstation_name_slash
, (const uchar
*)chal
,
633 lm_response
.data
, lm_response
.length
, nt_response
.data
, nt_response
.length
);
635 init_sam_info(&q
.sam_id
, cli
->srv_name_slash
, global_myname(),
636 &clnt_creds
, ret_creds
, NET_LOGON_TYPE
,
639 /* Marshall data and send request */
641 if (!net_io_q_sam_logon("", &q
, &qbuf
, 0) ||
642 !rpc_api_pipe_req(cli
, NET_SAMLOGON
, &qbuf
, &rbuf
)) {
646 /* Unmarshall response */
650 if (!net_io_r_sam_logon("", &r
, &rbuf
, 0)) {
654 ZERO_STRUCT(netlogon_sess_key
);
655 memcpy(netlogon_sess_key
, cli
->sess_key
, 8);
657 if (memcmp(zeros
, info3
->user_sess_key
, 16) != 0)
658 SamOEMhash(info3
->user_sess_key
, netlogon_sess_key
, 16);
660 if (memcmp(zeros
, info3
->padding
, 16) != 0)
661 SamOEMhash(info3
->padding
, netlogon_sess_key
, 16);
666 memcpy(ret_creds
, &r
.srv_creds
, sizeof(*ret_creds
));
675 /***************************************************************************
676 LSA Server Password Set.
677 ****************************************************************************/
679 NTSTATUS
cli_net_srv_pwset(struct cli_state
*cli
, TALLOC_CTX
*mem_ctx
,
680 const char *machine_name
, uint8 hashed_mach_pwd
[16])
684 DOM_CRED new_clnt_cred
;
686 uint16 sec_chan_type
= 2;
689 gen_next_creds( cli
, &new_clnt_cred
);
691 prs_init(&qbuf
, 1024, mem_ctx
, MARSHALL
);
692 prs_init(&rbuf
, 0, mem_ctx
, UNMARSHALL
);
694 DEBUG(4,("cli_net_srv_pwset: srv:%s acct:%s sc: %d mc: %s clnt %s %x\n",
695 cli
->srv_name_slash
, cli
->mach_acct
, sec_chan_type
, machine_name
,
696 credstr(new_clnt_cred
.challenge
.data
), new_clnt_cred
.timestamp
.time
));
698 /* store the parameters */
699 init_q_srv_pwset(&q_s
, cli
->srv_name_slash
, (const char *)cli
->sess_key
,
700 cli
->mach_acct
, sec_chan_type
, machine_name
,
701 &new_clnt_cred
, hashed_mach_pwd
);
703 /* turn parameters into data stream */
704 if(!net_io_q_srv_pwset("", &q_s
, &qbuf
, 0)) {
705 DEBUG(0,("cli_net_srv_pwset: Error : failed to marshall NET_Q_SRV_PWSET struct.\n"));
706 nt_status
= NT_STATUS_UNSUCCESSFUL
;
710 /* send the data on \PIPE\ */
711 if (rpc_api_pipe_req(cli
, NET_SRVPWSET
, &qbuf
, &rbuf
))
715 if (!net_io_r_srv_pwset("", &r_s
, &rbuf
, 0)) {
716 nt_status
= NT_STATUS_UNSUCCESSFUL
;
720 nt_status
= r_s
.status
;
722 if (!NT_STATUS_IS_OK(r_s
.status
))
724 /* report error code */
725 DEBUG(0,("cli_net_srv_pwset: %s\n", nt_errstr(nt_status
)));
729 /* Update the credentials. */
730 if (!clnt_deal_with_creds(cli
->sess_key
, &(cli
->clnt_cred
), &(r_s
.srv_cred
)))
733 * Server replied with bad credential. Fail.
735 DEBUG(0,("cli_net_srv_pwset: server %s replied with bad credential (bad machine \
736 password ?).\n", cli
->desthost
));
737 nt_status
= NT_STATUS_UNSUCCESSFUL
;