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
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
|
/*
Unix SMB/CIFS implementation.
dcerpc utility functions
Copyright (C) Andrew Tridgell 2003
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.
*/
#include "includes.h"
/*
this ndr_size_* stuff should really be auto-generated ....
*/
static size_t ndr_size_epm_floor(struct epm_floor *fl)
{
size_t ret = 5;
if (fl->lhs.protocol == EPM_PROTOCOL_UUID) {
ret += 18;
} else {
ret += fl->lhs.info.lhs_data.length;
}
ret += fl->rhs.rhs_data.length;
return ret;
}
size_t ndr_size_epm_towers(struct epm_towers *towers)
{
size_t ret = 2;
int i;
for (i=0;i<towers->num_floors;i++) {
ret += ndr_size_epm_floor(&towers->floors[i]);
}
return ret;
}
/*
work out what TCP port to use for a given interface on a given host
*/
NTSTATUS dcerpc_epm_map_tcp_port(const char *server,
const char *uuid, uint_t version,
uint32_t *port)
{
struct dcerpc_pipe *p;
NTSTATUS status;
struct epm_Map r;
struct policy_handle handle;
struct GUID guid;
struct epm_twr_t twr, *twr_r;
if (strcasecmp(uuid, DCERPC_EPMAPPER_UUID) == 0 ||
strcasecmp(uuid, DCERPC_MGMT_UUID) == 0) {
/* don't lookup epmapper via epmapper! */
*port = EPMAPPER_PORT;
return NT_STATUS_OK;
}
status = dcerpc_pipe_open_tcp(&p, server, EPMAPPER_PORT);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
/* we can use the pipes memory context here as we will have a short
lived connection */
status = dcerpc_bind_byuuid(p, p->mem_ctx,
DCERPC_EPMAPPER_UUID,
DCERPC_EPMAPPER_VERSION);
if (!NT_STATUS_IS_OK(status)) {
dcerpc_pipe_close(p);
return status;
}
ZERO_STRUCT(handle);
ZERO_STRUCT(guid);
twr.towers.num_floors = 5;
twr.towers.floors = talloc(p->mem_ctx, sizeof(twr.towers.floors[0]) * 5);
/* what I'd like for christmas ... */
/* an RPC interface ... */
twr.towers.floors[0].lhs.protocol = EPM_PROTOCOL_UUID;
GUID_from_string(uuid, &twr.towers.floors[0].lhs.info.uuid.uuid);
twr.towers.floors[0].lhs.info.uuid.version = version;
twr.towers.floors[0].rhs.rhs_data = data_blob_talloc_zero(p->mem_ctx, 2);
/* encoded with NDR ... */
twr.towers.floors[1].lhs.protocol = EPM_PROTOCOL_UUID;
GUID_from_string(NDR_GUID, &twr.towers.floors[1].lhs.info.uuid.uuid);
twr.towers.floors[1].lhs.info.uuid.version = NDR_GUID_VERSION;
twr.towers.floors[1].rhs.rhs_data = data_blob_talloc_zero(p->mem_ctx, 2);
/* on an RPC connection ... */
twr.towers.floors[2].lhs.protocol = EPM_PROTOCOL_RPC_C;
twr.towers.floors[2].lhs.info.lhs_data = data_blob(NULL, 0);
twr.towers.floors[2].rhs.rhs_data = data_blob_talloc_zero(p->mem_ctx, 2);
/* on a TCP port ... */
twr.towers.floors[3].lhs.protocol = EPM_PROTOCOL_TCP;
twr.towers.floors[3].lhs.info.lhs_data = data_blob(NULL, 0);
twr.towers.floors[3].rhs.rhs_data = data_blob_talloc_zero(p->mem_ctx, 2);
/* on an IP link ... */
twr.towers.floors[4].lhs.protocol = EPM_PROTOCOL_IP;
twr.towers.floors[4].lhs.info.lhs_data = data_blob(NULL, 0);
twr.towers.floors[4].rhs.rhs_data = data_blob_talloc_zero(p->mem_ctx, 4);
/* with some nice pretty paper around it of course */
r.in.object = &guid;
r.in.map_tower = &twr;
r.in.entry_handle = &handle;
r.in.max_towers = 1;
r.out.entry_handle = &handle;
status = dcerpc_epm_Map(p, p->mem_ctx, &r);
if (!NT_STATUS_IS_OK(status)) {
dcerpc_pipe_close(p);
return status;
}
if (r.out.status != 0 || r.out.num_towers != 1) {
dcerpc_pipe_close(p);
return NT_STATUS_PORT_UNREACHABLE;
}
twr_r = r.out.towers[0].twr;
if (!twr_r) {
dcerpc_pipe_close(p);
return NT_STATUS_PORT_UNREACHABLE;
}
if (twr_r->towers.num_floors != 5 ||
twr_r->towers.floors[3].lhs.protocol != twr.towers.floors[3].lhs.protocol ||
twr_r->towers.floors[3].rhs.rhs_data.length != 2) {
dcerpc_pipe_close(p);
return NT_STATUS_PORT_UNREACHABLE;
}
*port = RSVAL(twr_r->towers.floors[3].rhs.rhs_data.data, 0);
dcerpc_pipe_close(p);
return NT_STATUS_OK;
}
/*
find the pipe name for a local IDL interface
*/
const char *idl_pipe_name(const char *uuid, uint32_t if_version)
{
int i;
for (i=0;dcerpc_pipes[i];i++) {
if (strcasecmp(dcerpc_pipes[i]->uuid, uuid) == 0 &&
dcerpc_pipes[i]->if_version == if_version) {
return dcerpc_pipes[i]->name;
}
}
return "UNKNOWN";
}
/*
find the number of calls defined by local IDL
*/
int idl_num_calls(const char *uuid, uint32_t if_version)
{
int i;
for (i=0;dcerpc_pipes[i];i++) {
if (strcasecmp(dcerpc_pipes[i]->uuid, uuid) == 0 &&
dcerpc_pipes[i]->if_version == if_version) {
return dcerpc_pipes[i]->num_calls;
}
}
return -1;
}
/*
find a dcerpc interface by name
*/
const struct dcerpc_interface_table *idl_iface_by_name(const char *name)
{
int i;
for (i=0;dcerpc_pipes[i];i++) {
if (strcasecmp(dcerpc_pipes[i]->name, name) == 0) {
return dcerpc_pipes[i];
}
}
return NULL;
}
/*
find a dcerpc interface by uuid
*/
const struct dcerpc_interface_table *idl_iface_by_uuid(const char *uuid)
{
int i;
for (i=0;dcerpc_pipes[i];i++) {
if (strcasecmp(dcerpc_pipes[i]->uuid, uuid) == 0) {
return dcerpc_pipes[i];
}
}
return NULL;
}
/*
push a dcerpc_packet into a blob, potentially with auth info
*/
NTSTATUS dcerpc_push_auth(DATA_BLOB *blob, TALLOC_CTX *mem_ctx,
struct dcerpc_packet *pkt,
struct dcerpc_auth *auth_info)
{
NTSTATUS status;
struct ndr_push *ndr;
ndr = ndr_push_init_ctx(mem_ctx);
if (!ndr) {
return NT_STATUS_NO_MEMORY;
}
if (!(pkt->drep[0] & DCERPC_DREP_LE)) {
ndr->flags |= LIBNDR_FLAG_BIGENDIAN;
}
if (auth_info) {
pkt->auth_length = auth_info->credentials.length;
} else {
pkt->auth_length = 0;
}
status = ndr_push_dcerpc_packet(ndr, NDR_SCALARS|NDR_BUFFERS, pkt);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
if (auth_info) {
status = ndr_push_dcerpc_auth(ndr, NDR_SCALARS|NDR_BUFFERS, auth_info);
}
*blob = ndr_push_blob(ndr);
/* fill in the frag length */
dcerpc_set_frag_length(blob, blob->length);
return NT_STATUS_OK;
}
static const struct {
const char *name;
enum dcerpc_transport_t transport;
} ncacn_transports[] = {
{"ncacn_np", NCACN_NP},
{"ncacn_ip_tcp", NCACN_IP_TCP}
};
static const struct {
const char *name;
uint32_t flag;
} ncacn_options[] = {
{"sign", DCERPC_SIGN},
{"seal", DCERPC_SEAL},
{"validate", DCERPC_DEBUG_VALIDATE_BOTH},
{"print", DCERPC_DEBUG_PRINT_BOTH},
{"bigendian", DCERPC_PUSH_BIGENDIAN}
};
/*
form a binding string from a binding structure
*/
const char *dcerpc_binding_string(TALLOC_CTX *mem_ctx, const struct dcerpc_binding *b)
{
char *s = NULL;
int i;
const char *t_name=NULL;
for (i=0;i<ARRAY_SIZE(ncacn_transports);i++) {
if (ncacn_transports[i].transport == b->transport) {
t_name = ncacn_transports[i].name;
}
}
if (!t_name) {
return NULL;
}
s = talloc_asprintf(mem_ctx, "%s:%s:[", t_name, b->host);
if (!s) return NULL;
/* this is a *really* inefficent way of dealing with strings,
but this is rarely called and the strings are always short,
so I don't care */
for (i=0;b->options && b->options[i];i++) {
s = talloc_asprintf(mem_ctx, "%s%s,", s, b->options[i]);
if (!s) return NULL;
}
for (i=0;i<ARRAY_SIZE(ncacn_options);i++) {
if (b->flags & ncacn_options[i].flag) {
s = talloc_asprintf(mem_ctx, "%s%s,", s, ncacn_options[i].name);
if (!s) return NULL;
}
}
if (s[strlen(s)-1] == ',') {
s[strlen(s)-1] = 0;
}
s = talloc_asprintf(mem_ctx, "%s]", s);
return s;
}
/*
parse a binding string into a dcerpc_binding structure
*/
NTSTATUS dcerpc_parse_binding(TALLOC_CTX *mem_ctx, const char *s, struct dcerpc_binding *b)
{
char *part1, *part2, *part3;
char *p;
int i, j, comma_count;
p = strchr(s, ':');
if (!p) {
return NT_STATUS_INVALID_PARAMETER;
}
part1 = talloc_strndup(mem_ctx, s, PTR_DIFF(p, s));
if (!part1) {
return NT_STATUS_NO_MEMORY;
}
s = p+1;
p = strchr(s, ':');
if (!p) {
p = strchr(s, '[');
if (p) {
part2 = talloc_strndup(mem_ctx, s, PTR_DIFF(p, s));
part3 = talloc_strdup(mem_ctx, p+1);
if (part3[strlen(part3)-1] != ']') {
return NT_STATUS_INVALID_PARAMETER;
}
part3[strlen(part3)-1] = 0;
} else {
part2 = talloc_strdup(mem_ctx, s);
part3 = NULL;
}
} else {
part2 = talloc_strndup(mem_ctx, s, PTR_DIFF(p, s));
part3 = talloc_strdup(mem_ctx, p+1);
}
if (!part2) {
return NT_STATUS_NO_MEMORY;
}
for (i=0;i<ARRAY_SIZE(ncacn_transports);i++) {
if (strcasecmp(part1, ncacn_transports[i].name) == 0) {
b->transport = ncacn_transports[i].transport;
break;
}
}
if (i==ARRAY_SIZE(ncacn_transports)) {
DEBUG(0,("Unknown dcerpc transport '%s'\n", part1));
return NT_STATUS_INVALID_PARAMETER;
}
b->host = part2;
b->options = NULL;
b->flags = 0;
if (!part3) {
return NT_STATUS_OK;
}
/* the [] brackets are optional */
if (*part3 == '[' && part3[strlen(part3)-1] == ']') {
part3++;
part3[strlen(part3)-1] = 0;
}
comma_count = count_chars(part3, ',');
b->options = talloc_array_p(mem_ctx, const char *, comma_count+2);
if (!b->options) {
return NT_STATUS_NO_MEMORY;
}
for (i=0; (p = strchr(part3, ',')); i++) {
b->options[i] = talloc_strndup(mem_ctx, part3, PTR_DIFF(p, part3));
if (!b->options[i]) {
return NT_STATUS_NO_MEMORY;
}
part3 = p+1;
}
b->options[i] = part3;
b->options[i+1] = NULL;
/* some options are pre-parsed for convenience */
for (i=0;b->options[i];i++) {
for (j=0;j<ARRAY_SIZE(ncacn_options);j++) {
if (strcasecmp(ncacn_options[j].name, b->options[i]) == 0) {
int k;
b->flags |= ncacn_options[j].flag;
for (k=i;b->options[k];k++) {
b->options[k] = b->options[k+1];
}
i--;
break;
}
}
}
return NT_STATUS_OK;
}
/* open a rpc connection to a rpc pipe on SMB using the binding
structure to determine the endpoint and options */
static NTSTATUS dcerpc_pipe_connect_ncacn_np(struct dcerpc_pipe **p,
struct dcerpc_binding *binding,
const char *pipe_uuid,
uint32_t pipe_version,
const char *domain,
const char *username,
const char *password)
{
NTSTATUS status;
BOOL retry;
struct cli_state *cli;
const char *pipe_name;
if (!binding->options || !binding->options[0]) {
const struct dcerpc_interface_table *table = idl_iface_by_uuid(pipe_uuid);
if (!table) {
DEBUG(0,("Unknown interface endpoint '%s'\n", pipe_uuid));
return NT_STATUS_INVALID_PARAMETER;
}
/* only try the first endpoint for now */
pipe_name = table->endpoints->names[0];
} else {
pipe_name = binding->options[0];
}
if (strncasecmp(pipe_name, "\\pipe\\", 6) == 0) {
pipe_name += 6;
}
if (strncasecmp(pipe_name, "/pipe/", 6) == 0) {
pipe_name += 6;
}
if ((binding->flags & DCERPC_SCHANNEL_ANY) || !username || !username[0]) {
status = cli_full_connection(&cli, lp_netbios_name(),
binding->host, NULL,
"ipc$", "?????",
"", "", NULL, 0, &retry);
} else {
status = cli_full_connection(&cli, lp_netbios_name(),
binding->host, NULL,
"ipc$", "?????",
username, domain,
password, 0, &retry);
}
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("Failed to connect to %s - %s\n", binding->host, nt_errstr(status)));
return status;
}
status = dcerpc_pipe_open_smb(p, cli->tree, pipe_name);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("Failed to open pipe %s - %s\n", pipe_name, nt_errstr(status)));
cli_tdis(cli);
cli_shutdown(cli);
return status;
}
/* this ensures that the reference count is decremented so
a pipe close will really close the link */
cli_tree_close(cli->tree);
(*p)->flags = binding->flags;
/* remember the binding string for possible secondary connections */
(*p)->binding_string = dcerpc_binding_string((*p)->mem_ctx, binding);
if (username && username[0] && (binding->flags & DCERPC_SCHANNEL_ANY)) {
status = dcerpc_bind_auth_schannel(*p, pipe_uuid, pipe_version,
domain, username, password);
} else if (username && username[0] && (binding->flags & (DCERPC_SIGN | DCERPC_SEAL))) {
status = dcerpc_bind_auth_ntlm(*p, pipe_uuid, pipe_version, domain, username, password);
} else {
status = dcerpc_bind_auth_none(*p, pipe_uuid, pipe_version);
}
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("Failed to bind to uuid %s - %s\n", pipe_uuid, nt_errstr(status)));
dcerpc_pipe_close(*p);
return status;
}
return NT_STATUS_OK;
}
/* open a rpc connection to a rpc pipe on SMP using the binding
structure to determine the endpoint and options */
static NTSTATUS dcerpc_pipe_connect_ncacn_ip_tcp(struct dcerpc_pipe **p,
struct dcerpc_binding *binding,
const char *pipe_uuid,
uint32_t pipe_version,
const char *domain,
const char *username,
const char *password)
{
NTSTATUS status;
uint32_t port = 0;
if (binding->options && binding->options[0]) {
port = atoi(binding->options[0]);
}
if (port == 0) {
status = dcerpc_epm_map_tcp_port(binding->host,
pipe_uuid, pipe_version,
&port);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("Failed to map DCERPC/TCP port for '%s' - %s\n",
pipe_uuid, nt_errstr(status)));
return status;
}
DEBUG(1,("Mapped to DCERPC/TCP port %u\n", port));
}
status = dcerpc_pipe_open_tcp(p, binding->host, port);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("Failed to connect to %s:%d\n", binding->host, port));
return status;
}
/* it doesn't seem to work to do a null NTLMSSP session without either sign
or seal, so force signing if we are doing ntlmssp */
if (username && username[0] && !(binding->flags & (DCERPC_SIGN|DCERPC_SEAL))) {
binding->flags |= DCERPC_SIGN;
}
(*p)->flags = binding->flags;
/* remember the binding string for possible secondary connections */
(*p)->binding_string = dcerpc_binding_string((*p)->mem_ctx, binding);
if (username && username[0] && (binding->flags & DCERPC_SCHANNEL_ANY)) {
status = dcerpc_bind_auth_schannel(*p, pipe_uuid, pipe_version,
domain, username, password);
} else if (username && username[0] && (binding->flags & (DCERPC_SIGN | DCERPC_SEAL))) {
status = dcerpc_bind_auth_ntlm(*p, pipe_uuid, pipe_version, domain, username, password);
} else {
status = dcerpc_bind_auth_none(*p, pipe_uuid, pipe_version);
}
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("Failed to bind to uuid %s - %s\n",
pipe_uuid, nt_errstr(status)));
dcerpc_pipe_close(*p);
return status;
}
return status;
}
/* open a rpc connection to a rpc pipe, using the specified
binding structure to determine the endpoint and options */
NTSTATUS dcerpc_pipe_connect_b(struct dcerpc_pipe **p,
struct dcerpc_binding *binding,
const char *pipe_uuid,
uint32_t pipe_version,
const char *domain,
const char *username,
const char *password)
{
NTSTATUS status = NT_STATUS_INVALID_PARAMETER;
switch (binding->transport) {
case NCACN_NP:
status = dcerpc_pipe_connect_ncacn_np(p, binding, pipe_uuid, pipe_version,
domain, username, password);
break;
case NCACN_IP_TCP:
status = dcerpc_pipe_connect_ncacn_ip_tcp(p, binding, pipe_uuid, pipe_version,
domain, username, password);
break;
}
return status;
}
/* open a rpc connection to a rpc pipe, using the specified string
binding to determine the endpoint and options */
NTSTATUS dcerpc_pipe_connect(struct dcerpc_pipe **p,
const char *binding,
const char *pipe_uuid,
uint32_t pipe_version,
const char *domain,
const char *username,
const char *password)
{
struct dcerpc_binding b;
NTSTATUS status;
TALLOC_CTX *mem_ctx;
mem_ctx = talloc_init("dcerpc_pipe_connect");
if (!mem_ctx) return NT_STATUS_NO_MEMORY;
status = dcerpc_parse_binding(mem_ctx, binding, &b);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("Failed to parse dcerpc binding '%s'\n", binding));
talloc_destroy(mem_ctx);
return status;
}
DEBUG(3,("Using binding %s\n", dcerpc_binding_string(mem_ctx, &b)));
status = dcerpc_pipe_connect_b(p, &b, pipe_uuid, pipe_version, domain, username, password);
talloc_destroy(mem_ctx);
return status;
}
/*
create a secondary dcerpc connection from a primary connection
if the primary is a SMB connection then the secondary connection
will be on the same SMB connection, but use a new fnum
*/
NTSTATUS dcerpc_secondary_connection(struct dcerpc_pipe *p, struct dcerpc_pipe **p2,
const char *pipe_name,
const char *pipe_uuid,
uint32_t pipe_version)
{
struct cli_tree *tree;
NTSTATUS status = NT_STATUS_INVALID_PARAMETER;
struct dcerpc_binding b;
switch (p->transport.transport) {
case NCACN_NP:
tree = dcerpc_smb_tree(p);
if (!tree) {
return NT_STATUS_INVALID_PARAMETER;
}
status = dcerpc_pipe_open_smb(p2, tree, pipe_name);
break;
case NCACN_IP_TCP:
status = dcerpc_parse_binding(p->mem_ctx, p->binding_string, &b);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
b.flags &= ~DCERPC_AUTH_OPTIONS;
status = dcerpc_pipe_connect_ncacn_ip_tcp(p2, &b, pipe_uuid,
pipe_version, NULL,
NULL, NULL);
break;
}
if (!NT_STATUS_IS_OK(status)) {
return status;
}
(*p2)->flags = p->flags;
status = dcerpc_bind_auth_none(*p2, pipe_uuid, pipe_version);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
return NT_STATUS_OK;
}
/*
fetch the user session key for the underlying transport. Currently
only works for the ncacn_np transport
*/
NTSTATUS dcerpc_fetch_session_key(struct dcerpc_pipe *p,
DATA_BLOB *session_key)
{
struct cli_tree *tree;
if (p->security_state.ops) {
return p->security_state.ops->session_key(&p->security_state, session_key);
}
tree = dcerpc_smb_tree(p);
if (tree) {
if (tree->session->user_session_key.data) {
*session_key = tree->session->user_session_key;
return NT_STATUS_OK;
}
}
return NT_STATUS_NO_USER_SESSION_KEY;
}
|