1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
|
/*
* Unix SMB/Netbios implementation.
* Version 1.9.
* RPC Pipe client / server routines
* Copyright (C) Andrew Tridgell 1992-1997,
* Copyright (C) Luke Kenneth Casson Leighton 1996-1997,
* Copyright (C) Paul Ashton 1997.
* Copyright (C) Jeremy Allison 1998.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifdef SYSLOG
#undef SYSLOG
#endif
#include "includes.h"
extern int DEBUGLEVEL;
/****************************************************************************
Generate the next creds to use.
****************************************************************************/
void gen_next_creds( struct cli_state *cli, DOM_CRED *new_clnt_cred)
{
/*
* Create the new client credentials.
*/
cli->clnt_cred.timestamp.time = time(NULL);
memcpy(new_clnt_cred, &cli->clnt_cred, sizeof(*new_clnt_cred));
/* Calculate the new credentials. */
cred_create(cli->sess_key, &(cli->clnt_cred.challenge),
new_clnt_cred->timestamp, &(new_clnt_cred->challenge));
}
/****************************************************************************
do a LSA Logon Control2
****************************************************************************/
BOOL cli_net_logon_ctrl2(const char* srv_name, uint32 status_level)
{
prs_struct rbuf;
prs_struct buf;
NET_Q_LOGON_CTRL2 q_l;
BOOL ok = False;
struct cli_connection *con = NULL;
if (!cli_connection_init(srv_name, PIPE_NETLOGON, &con))
{
return False;
}
prs_init(&buf , 1024, 4, SAFETY_MARGIN, False);
prs_init(&rbuf, 0, 4, SAFETY_MARGIN, True );
/* create and send a MSRPC command with api NET_LOGON_CTRL2 */
DEBUG(4,("net_logon_ctrl2 status level:%x\n", status_level));
/* store the parameters */
make_q_logon_ctrl2(&q_l, srv_name, 0, 0, status_level);
/* turn parameters into data stream */
net_io_q_logon_ctrl2("", &q_l, &buf, 0);
/* send the data on \PIPE\ */
if (rpc_con_pipe_req(con, NET_LOGON_CTRL2, &buf, &rbuf))
{
NET_R_LOGON_CTRL2 r_l;
net_io_r_logon_ctrl2("", &r_l, &rbuf, 0);
ok = (rbuf.offset != 0);
if (ok && r_l.status != 0)
{
/* report error code */
DEBUG(5,("net_logon_ctrl2: Error %s\n", get_nt_error_msg(r_l.status)));
ok = False;
}
}
prs_mem_free(&rbuf);
prs_mem_free(&buf );
cli_connection_unlink(con);
return ok;
}
/****************************************************************************
LSA Authenticate 2
Send the client credential, receive back a server credential.
Ensure that the server credential returned matches the session key
encrypt of the server challenge originally received. JRA.
****************************************************************************/
uint32 cli_net_auth2(const char *srv_name,
const char *trust_acct,
uint16 sec_chan,
uint32 neg_flags, DOM_CHAL *srv_chal)
{
prs_struct rbuf;
prs_struct buf;
NET_Q_AUTH_2 q_a;
uint32 status = 0x0;
uint8 sess_key[16];
DOM_CRED clnt_cred;
struct cli_connection *con = NULL;
if (!cli_connection_getsrv(srv_name, PIPE_NETLOGON, &con))
{
return False;
}
if (!cli_get_con_sesskey(con, sess_key))
{
return False;
}
prs_init(&buf , 1024, 4, SAFETY_MARGIN, False);
prs_init(&rbuf, 0, 4, SAFETY_MARGIN, True );
/* create and send a MSRPC command with api NET_AUTH2 */
DEBUG(4,("cli_net_auth2: srv:%s acct:%s sc:%x mc: %s neg: %x\n",
srv_name, trust_acct, sec_chan, srv_name,
neg_flags));
cli_con_get_cli_cred(con, &clnt_cred);
/* store the parameters */
make_q_auth_2(&q_a, srv_name, trust_acct, sec_chan, srv_name,
&clnt_cred.challenge, neg_flags);
/* turn parameters into data stream */
net_io_q_auth_2("", &q_a, &buf, 0);
/* send the data on \PIPE\ */
if (rpc_con_pipe_req(con, NET_AUTH2, &buf, &rbuf))
{
NET_R_AUTH_2 r_a;
net_io_r_auth_2("", &r_a, &rbuf, 0);
status = (rbuf.offset == 0) ? 0xC0000000 | NT_STATUS_INVALID_PARAMETER : 0;
if (status == 0x0 && r_a.status != 0)
{
/* report error code */
DEBUG(5,("cli_net_auth2: Error %s\n",
get_nt_error_msg(r_a.status)));
status = r_a.status;
}
if (status == 0x0)
{
/*
* Check the returned value using the initial
* server received challenge.
*/
UTIME zerotime;
zerotime.time = 0;
if(cred_assert( &r_a.srv_chal, sess_key,
srv_chal, zerotime) == 0)
{
/*
* Server replied with bad credential. Fail.
*/
DEBUG(5,("cli_net_auth2: server %s replied \
with bad credential (bad trust account password ?).\n", srv_name));
status = NT_STATUS_NETWORK_CREDENTIAL_CONFLICT | 0xC0000000;
}
}
#if 0
/*
* Try commenting this out to see if this makes the connect
* work for a NT 3.51 PDC. JRA.
*/
if (ok && r_a.srv_flgs.neg_flags != q_a.clnt_flgs.neg_flags)
{
/* report different neg_flags */
DEBUG(5,("cli_net_auth2: error neg_flags (q,r) differ - (%x,%x)\n",
q_a.clnt_flgs.neg_flags, r_a.srv_flgs.neg_flags));
ok = False;
}
#endif
}
else
{
DEBUG(5,("rpc_con_pipe_req FAILED\n"));
status = 0xC0000000 | NT_STATUS_ACCESS_DENIED;
}
DEBUG(5,("cli_net_auth2 status: %x\n", status));
prs_mem_free(&rbuf);
prs_mem_free(&buf );
return status;
}
/****************************************************************************
LSA Request Challenge. Sends our challenge to server, then gets
server response. These are used to generate the credentials.
****************************************************************************/
uint32 cli_net_req_chal( const char *srv_name, const char* myhostname,
DOM_CHAL *clnt_chal, DOM_CHAL *srv_chal)
{
prs_struct rbuf;
prs_struct buf;
NET_Q_REQ_CHAL q_c;
uint32 status = 0x0;
struct cli_connection *con = NULL;
if (!cli_connection_init(srv_name, PIPE_NETLOGON, &con))
{
return False;
}
if (srv_chal == NULL || clnt_chal == NULL)
return 0xC0000000 | NT_STATUS_INVALID_PARAMETER;
prs_init(&buf , 1024, 4, SAFETY_MARGIN, False);
prs_init(&rbuf, 0, 4, SAFETY_MARGIN, True );
/* create and send a MSRPC command with api NET_REQCHAL */
DEBUG(4,("cli_net_req_chal: LSA Request Challenge from %s to %s: %s\n",
srv_name, myhostname, credstr(clnt_chal->data)));
/* store the parameters */
make_q_req_chal(&q_c, srv_name, myhostname, clnt_chal);
/* turn parameters into data stream */
net_io_q_req_chal("", &q_c, &buf, 0);
/* send the data on \PIPE\ */
if (rpc_con_pipe_req(con, NET_REQCHAL, &buf, &rbuf))
{
NET_R_REQ_CHAL r_c;
net_io_r_req_chal("", &r_c, &rbuf, 0);
status = (rbuf.offset == 0) ? 0xC0000000 | NT_STATUS_INVALID_PARAMETER : 0;
if (status == 0x0 && r_c.status != 0)
{
/* report error code */
DEBUG(5,("cli_net_req_chal: Error %s\n", get_nt_error_msg(r_c.status)));
status = r_c.status;
}
if (status == 0x0)
{
/* ok, at last: we're happy. return the challenge */
memcpy(srv_chal, r_c.srv_chal.data, sizeof(srv_chal->data));
}
}
else
{
DEBUG(5,("rpc_con_pipe_req FAILED\n"));
status = 0xC0000000 | NT_STATUS_ACCESS_DENIED;
}
prs_mem_free(&rbuf);
prs_mem_free(&buf );
return status;
}
/***************************************************************************
LSA Server Password Set.
****************************************************************************/
BOOL cli_net_srv_pwset(const char* srv_name,
const char* myhostname,
const char* trust_acct,
uint8 hashed_trust_pwd[16],
uint16 sec_chan_type)
{
prs_struct rbuf;
prs_struct buf;
DOM_CRED new_clnt_cred;
NET_Q_SRV_PWSET q_s;
BOOL ok = False;
unsigned char processed_new_pwd[16];
/* Process the new password. */
uint8 sess_key[16];
struct cli_connection *con = NULL;
if (!cli_connection_getsrv(srv_name, PIPE_NETLOGON, &con))
{
return False;
}
if (!cli_get_con_sesskey(con, sess_key))
{
return False;
}
cred_hash3( processed_new_pwd, hashed_trust_pwd, sess_key, 1);
cli_con_gen_next_creds( con, &new_clnt_cred);
prs_init(&buf , 1024, 4, SAFETY_MARGIN, False);
prs_init(&rbuf, 0, 4, SAFETY_MARGIN, True );
/* create and send a MSRPC command with api NET_SRV_PWSET */
DEBUG(4,("cli_net_srv_pwset: srv:%s acct:%s sc: %d mc: %s clnt %s %x\n",
srv_name, trust_acct, sec_chan_type, myhostname,
credstr(new_clnt_cred.challenge.data), new_clnt_cred.timestamp.time));
/* store the parameters */
make_q_srv_pwset(&q_s, srv_name, trust_acct, sec_chan_type,
myhostname, &new_clnt_cred, (char *)processed_new_pwd);
/* turn parameters into data stream */
net_io_q_srv_pwset("", &q_s, &buf, 0);
/* send the data on \PIPE\ */
if (rpc_con_pipe_req(con, NET_SRVPWSET, &buf, &rbuf))
{
NET_R_SRV_PWSET r_s;
net_io_r_srv_pwset("", &r_s, &rbuf, 0);
ok = (rbuf.offset != 0);
if (ok && r_s.status != 0)
{
/* report error code */
DEBUG(5,("cli_net_srv_pwset: %s\n", get_nt_error_msg(r_s.status)));
ok = False;
}
/* Update the credentials. */
if (ok && !cli_con_deal_with_creds(con, &(r_s.srv_cred)))
{
/*
* Server replied with bad credential. Fail.
*/
DEBUG(5,("cli_net_srv_pwset: server %s replied with bad credential \
(bad trust account password ?).\n", srv_name));
ok = False;
}
}
prs_mem_free(&rbuf);
prs_mem_free(&buf );
return ok;
}
/***************************************************************************
LSA SAM Logon - interactive or network.
****************************************************************************/
BOOL cli_net_sam_logon(const char* srv_name, const char* myhostname,
NET_ID_INFO_CTR *ctr,
NET_USER_INFO_3 *user_info3)
{
DOM_CRED new_clnt_cred;
DOM_CRED dummy_rtn_creds;
prs_struct rbuf;
prs_struct buf;
uint16 validation_level = 3;
NET_Q_SAM_LOGON q_s;
BOOL ok = False;
struct cli_connection *con = NULL;
if (!cli_connection_getsrv(srv_name, PIPE_NETLOGON, &con))
{
return False;
}
cli_con_gen_next_creds( con, &new_clnt_cred);
prs_init(&buf , 1024, 4, SAFETY_MARGIN, False);
prs_init(&rbuf, 0, 4, SAFETY_MARGIN, True );
/* create and send a MSRPC command with api NET_SAMLOGON */
DEBUG(4,("cli_net_sam_logon: srv:%s mc:%s ll: %d\n",
srv_name, myhostname,
ctr->switch_value));
memset(&dummy_rtn_creds, '\0', sizeof(dummy_rtn_creds));
dummy_rtn_creds.timestamp.time = time(NULL);
/* store the parameters */
make_sam_info(&(q_s.sam_id), srv_name, myhostname,
&new_clnt_cred, &dummy_rtn_creds, ctr->switch_value, ctr, validation_level);
/* turn parameters into data stream */
net_io_q_sam_logon("", &q_s, &buf, 0);
/* send the data on \PIPE\ */
if (rpc_con_pipe_req(con, NET_SAMLOGON, &buf, &rbuf))
{
NET_R_SAM_LOGON r_s;
r_s.user = user_info3;
net_io_r_sam_logon("", &r_s, &rbuf, 0);
ok = (rbuf.offset != 0);
if (ok && r_s.status != 0)
{
/* report error code */
DEBUG(5,("cli_net_sam_logon: %s\n", get_nt_error_msg(r_s.status)));
ok = False;
}
/* Update the credentials. */
if (ok && !cli_con_deal_with_creds(con, &(r_s.srv_creds)))
{
/*
* Server replied with bad credential. Fail.
*/
DEBUG(5,("cli_net_sam_logon: server %s replied with bad credential \
(bad trust account password ?).\n", srv_name));
ok = False;
}
if (ok && r_s.switch_value != 3)
{
/* report different switch_value */
DEBUG(5,("cli_net_sam_logon: switch_value of 3 expected %x\n",
r_s.switch_value));
ok = False;
}
}
prs_mem_free(&rbuf);
prs_mem_free(&buf );
return ok;
}
/***************************************************************************
LSA SAM Logoff.
This currently doesnt work correctly as the domain controller
returns NT_STATUS_INVALID_INFO_CLASS - we obviously need to
send a different info level. Right now though, I'm not sure
what that needs to be (I need to see one on the wire before
I can be sure). JRA.
****************************************************************************/
BOOL cli_net_sam_logoff(const char* srv_name, const char* myhostname,
NET_ID_INFO_CTR *ctr)
{
DOM_CRED new_clnt_cred;
DOM_CRED dummy_rtn_creds;
prs_struct rbuf;
prs_struct buf;
NET_Q_SAM_LOGOFF q_s;
uint16 validation_level = 3;
BOOL ok = False;
struct cli_connection *con = NULL;
if (!cli_connection_getsrv(srv_name, PIPE_NETLOGON, &con))
{
return False;
}
cli_con_gen_next_creds( con, &new_clnt_cred);
prs_init(&buf , 1024, 4, SAFETY_MARGIN, False);
prs_init(&rbuf, 0, 4, SAFETY_MARGIN, True );
/* create and send a MSRPC command with api NET_SAMLOGOFF */
DEBUG(4,("cli_net_sam_logoff: srv:%s mc:%s clnt %s %x ll: %d\n",
srv_name, myhostname,
credstr(new_clnt_cred.challenge.data), new_clnt_cred.timestamp.time,
ctr->switch_value));
memset(&dummy_rtn_creds, '\0', sizeof(dummy_rtn_creds));
/* store the parameters */
make_sam_info(&(q_s.sam_id), srv_name, myhostname,
&new_clnt_cred, &dummy_rtn_creds, ctr->switch_value, ctr, validation_level);
/* turn parameters into data stream */
net_io_q_sam_logoff("", &q_s, &buf, 0);
/* send the data on \PIPE\ */
if (rpc_con_pipe_req(con, NET_SAMLOGOFF, &buf, &rbuf))
{
NET_R_SAM_LOGOFF r_s;
net_io_r_sam_logoff("", &r_s, &rbuf, 0);
ok = (rbuf.offset != 0);
if (ok && r_s.status != 0)
{
/* report error code */
DEBUG(5,("cli_net_sam_logoff: %s\n", get_nt_error_msg(r_s.status)));
ok = False;
}
/* Update the credentials. */
if (ok && !cli_con_deal_with_creds(con, &(r_s.srv_creds)))
{
/*
* Server replied with bad credential. Fail.
*/
DEBUG(5,("cli_net_sam_logoff: server %s replied with bad credential \
(bad trust account password ?).\n", srv_name ));
ok = False;
}
}
prs_mem_free(&rbuf);
prs_mem_free(&buf );
return ok;
}
/***************************************************************************
Synchronise SAM Database (requires SEC_CHAN_BDC).
****************************************************************************/
BOOL cli_net_sam_sync( const char* srv_name, const char* myhostname,
uint32 database_id,
uint32 *num_deltas,
SAM_DELTA_HDR *hdr_deltas,
SAM_DELTA_CTR *deltas)
{
NET_Q_SAM_SYNC q_s;
prs_struct rbuf;
prs_struct buf;
DOM_CRED new_clnt_cred;
BOOL ok = False;
uint8 sess_key[16];
struct cli_connection *con = NULL;
if (!cli_connection_getsrv(srv_name, PIPE_NETLOGON, &con))
{
return False;
}
if (!cli_get_con_sesskey(con, sess_key))
{
return False;
}
cli_con_gen_next_creds(con, &new_clnt_cred);
prs_init(&buf , 1024, 4, SAFETY_MARGIN, False);
prs_init(&rbuf, 0, 4, SAFETY_MARGIN, True );
/* create and send a MSRPC command with api NET_SAM_SYNC */
make_q_sam_sync(&q_s, srv_name, myhostname,
&new_clnt_cred, database_id);
/* turn parameters into data stream */
net_io_q_sam_sync("", &q_s, &buf, 0);
/* send the data on \PIPE\ */
if (rpc_con_pipe_req(con, NET_SAM_SYNC, &buf, &rbuf))
{
NET_R_SAM_SYNC r_s;
r_s.hdr_deltas = hdr_deltas;
r_s.deltas = deltas;
net_io_r_sam_sync("", sess_key, &r_s, &rbuf, 0);
ok = (rbuf.offset != 0);
if (ok && r_s.status != 0 && r_s.status != STATUS_MORE_ENTRIES)
{
/* report error code */
DEBUG(5,("cli_net_sam_sync: %s\n", get_nt_error_msg(r_s.status)));
ok = False;
}
/* Update the credentials. */
if (ok && !cli_con_deal_with_creds(con, &(r_s.srv_creds)))
{
DEBUG(5,("cli_net_sam_sync: server %s replied with bad \
credential (bad trust account password ?).\n", srv_name));
ok = False;
}
if (ok)
{
*num_deltas = r_s.num_deltas2;
if (r_s.status == STATUS_MORE_ENTRIES)
{
DEBUG(5, ("(More entries)\n"));
}
}
}
prs_mem_free(&rbuf);
prs_mem_free(&buf );
return ok;
}
|