2
* Unix SMB/CIFS implementation.
3
* RPC Pipe client / server routines
4
* Almost completely rewritten by (C) Jeremy Allison 2005.
6
* This program is free software; you can redistribute it and/or modify
7
* it under the terms of the GNU General Public License as published by
8
* the Free Software Foundation; either version 2 of the License, or
9
* (at your option) any later version.
11
* This program is distributed in the hope that it will be useful,
12
* but WITHOUT ANY WARRANTY; without even the implied warranty of
13
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14
* GNU General Public License for more details.
16
* You should have received a copy of the GNU General Public License
17
* along with this program; if not, write to the Free Software
18
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21
/* this module apparently provides an implementation of DCE/RPC over a
22
* named pipe (IPC$ connection using SMBtrans). details of DCE/RPC
23
* documentation are available (in on-line form) from the X-Open group.
25
* this module should provide a level of abstraction between SMB
26
* and DCE/RPC, while minimising the amount of mallocs, unnecessary
27
* data copies, and network traffic.
33
extern struct pipe_id_info pipe_names[];
34
extern struct current_user current_user;
37
#define DBGC_CLASS DBGC_RPC_SRV
39
static void free_pipe_ntlmssp_auth_data(struct pipe_auth_data *auth)
41
AUTH_NTLMSSP_STATE *a = auth->a_u.auth_ntlmssp_state;
46
auth->a_u.auth_ntlmssp_state = NULL;
49
static DATA_BLOB generic_session_key(void)
51
return data_blob("SystemLibraryDTC", 16);
54
/*******************************************************************
55
Generate the next PDU to be returned from the data in p->rdata.
57
********************************************************************/
59
static BOOL create_next_pdu_ntlmssp(pipes_struct *p)
61
RPC_HDR_RESP hdr_resp;
62
uint32 ss_padding_len = 0;
63
uint32 data_space_available;
66
prs_struct outgoing_pdu;
69
RPC_HDR_AUTH auth_info;
70
uint8 auth_type, auth_level;
71
AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
74
* If we're in the fault state, keep returning fault PDU's until
75
* the pipe gets closed. JRA.
79
setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
83
memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
85
/* Change the incoming request header to a response. */
86
p->hdr.pkt_type = RPC_RESPONSE;
88
/* Set up rpc header flags. */
89
if (p->out_data.data_sent_length == 0) {
90
p->hdr.flags = RPC_FLG_FIRST;
96
* Work out how much we can fit in a single PDU.
99
data_len_left = prs_offset(&p->out_data.rdata) - p->out_data.data_sent_length;
102
* Ensure there really is data left to send.
106
DEBUG(0,("create_next_pdu_ntlmssp: no data left to send !\n"));
110
data_space_available = sizeof(p->out_data.current_pdu) - RPC_HEADER_LEN - RPC_HDR_RESP_LEN -
111
RPC_HDR_AUTH_LEN - NTLMSSP_SIG_SIZE;
114
* The amount we send is the minimum of the available
115
* space and the amount left to send.
118
data_len = MIN(data_len_left, data_space_available);
121
* Set up the alloc hint. This should be the data left to
125
hdr_resp.alloc_hint = data_len_left;
128
* Work out if this PDU will be the last.
131
if(p->out_data.data_sent_length + data_len >= prs_offset(&p->out_data.rdata)) {
132
p->hdr.flags |= RPC_FLG_LAST;
133
if (data_len_left % 8) {
134
ss_padding_len = 8 - (data_len_left % 8);
135
DEBUG(10,("create_next_pdu_ntlmssp: adding sign/seal padding of %u\n",
141
* Set up the header lengths.
144
p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN +
145
data_len + ss_padding_len +
146
RPC_HDR_AUTH_LEN + NTLMSSP_SIG_SIZE;
147
p->hdr.auth_len = NTLMSSP_SIG_SIZE;
151
* Init the parse struct to point at the outgoing
155
prs_init( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
156
prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
158
/* Store the header in the data stream. */
159
if(!smb_io_rpc_hdr("hdr", &p->hdr, &outgoing_pdu, 0)) {
160
DEBUG(0,("create_next_pdu_ntlmssp: failed to marshall RPC_HDR.\n"));
161
prs_mem_free(&outgoing_pdu);
165
if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
166
DEBUG(0,("create_next_pdu_ntlmssp: failed to marshall RPC_HDR_RESP.\n"));
167
prs_mem_free(&outgoing_pdu);
171
/* Copy the data into the PDU. */
173
if(!prs_append_some_prs_data(&outgoing_pdu, &p->out_data.rdata, p->out_data.data_sent_length, data_len)) {
174
DEBUG(0,("create_next_pdu_ntlmssp: failed to copy %u bytes of data.\n", (unsigned int)data_len));
175
prs_mem_free(&outgoing_pdu);
179
/* Copy the sign/seal padding data. */
180
if (ss_padding_len) {
183
memset(pad, '\0', 8);
184
if (!prs_copy_data_in(&outgoing_pdu, pad, ss_padding_len)) {
185
DEBUG(0,("create_next_pdu_ntlmssp: failed to add %u bytes of pad data.\n",
186
(unsigned int)ss_padding_len));
187
prs_mem_free(&outgoing_pdu);
193
/* Now write out the auth header and null blob. */
194
if (p->auth.auth_type == PIPE_AUTH_TYPE_NTLMSSP) {
195
auth_type = RPC_NTLMSSP_AUTH_TYPE;
197
auth_type = RPC_SPNEGO_AUTH_TYPE;
199
if (p->auth.auth_level == PIPE_AUTH_LEVEL_PRIVACY) {
200
auth_level = RPC_AUTH_LEVEL_PRIVACY;
202
auth_level = RPC_AUTH_LEVEL_INTEGRITY;
205
init_rpc_hdr_auth(&auth_info, auth_type, auth_level, ss_padding_len, 1 /* context id. */);
206
if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, &outgoing_pdu, 0)) {
207
DEBUG(0,("create_next_pdu_ntlmssp: failed to marshall RPC_HDR_AUTH.\n"));
208
prs_mem_free(&outgoing_pdu);
212
/* Generate the sign blob. */
214
switch (p->auth.auth_level) {
215
case PIPE_AUTH_LEVEL_PRIVACY:
216
/* Data portion is encrypted. */
217
status = ntlmssp_seal_packet(a->ntlmssp_state,
218
(unsigned char *)prs_data_p(&outgoing_pdu) + RPC_HEADER_LEN + RPC_HDR_RESP_LEN,
219
data_len + ss_padding_len,
220
(unsigned char *)prs_data_p(&outgoing_pdu),
221
(size_t)prs_offset(&outgoing_pdu),
223
if (!NT_STATUS_IS_OK(status)) {
224
data_blob_free(&auth_blob);
225
prs_mem_free(&outgoing_pdu);
229
case PIPE_AUTH_LEVEL_INTEGRITY:
230
/* Data is signed. */
231
status = ntlmssp_sign_packet(a->ntlmssp_state,
232
(unsigned char *)prs_data_p(&outgoing_pdu) + RPC_HEADER_LEN + RPC_HDR_RESP_LEN,
233
data_len + ss_padding_len,
234
(unsigned char *)prs_data_p(&outgoing_pdu),
235
(size_t)prs_offset(&outgoing_pdu),
237
if (!NT_STATUS_IS_OK(status)) {
238
data_blob_free(&auth_blob);
239
prs_mem_free(&outgoing_pdu);
244
prs_mem_free(&outgoing_pdu);
248
/* Append the auth blob. */
249
if (!prs_copy_data_in(&outgoing_pdu, (char *)auth_blob.data, NTLMSSP_SIG_SIZE)) {
250
DEBUG(0,("create_next_pdu_ntlmssp: failed to add %u bytes auth blob.\n",
251
(unsigned int)NTLMSSP_SIG_SIZE));
252
data_blob_free(&auth_blob);
253
prs_mem_free(&outgoing_pdu);
257
data_blob_free(&auth_blob);
260
* Setup the counts for this PDU.
263
p->out_data.data_sent_length += data_len;
264
p->out_data.current_pdu_len = p->hdr.frag_len;
265
p->out_data.current_pdu_sent = 0;
267
prs_mem_free(&outgoing_pdu);
271
/*******************************************************************
272
Generate the next PDU to be returned from the data in p->rdata.
273
Return an schannel authenticated fragment.
274
********************************************************************/
276
static BOOL create_next_pdu_schannel(pipes_struct *p)
278
RPC_HDR_RESP hdr_resp;
279
uint32 ss_padding_len = 0;
281
uint32 data_space_available;
282
uint32 data_len_left;
283
prs_struct outgoing_pdu;
287
* If we're in the fault state, keep returning fault PDU's until
288
* the pipe gets closed. JRA.
292
setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
296
memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
298
/* Change the incoming request header to a response. */
299
p->hdr.pkt_type = RPC_RESPONSE;
301
/* Set up rpc header flags. */
302
if (p->out_data.data_sent_length == 0) {
303
p->hdr.flags = RPC_FLG_FIRST;
309
* Work out how much we can fit in a single PDU.
312
data_len_left = prs_offset(&p->out_data.rdata) - p->out_data.data_sent_length;
315
* Ensure there really is data left to send.
319
DEBUG(0,("create_next_pdu_schannel: no data left to send !\n"));
323
data_space_available = sizeof(p->out_data.current_pdu) - RPC_HEADER_LEN - RPC_HDR_RESP_LEN -
324
RPC_HDR_AUTH_LEN - RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN;
327
* The amount we send is the minimum of the available
328
* space and the amount left to send.
331
data_len = MIN(data_len_left, data_space_available);
334
* Set up the alloc hint. This should be the data left to
338
hdr_resp.alloc_hint = data_len_left;
341
* Work out if this PDU will be the last.
344
if(p->out_data.data_sent_length + data_len >= prs_offset(&p->out_data.rdata)) {
345
p->hdr.flags |= RPC_FLG_LAST;
346
if (data_len_left % 8) {
347
ss_padding_len = 8 - (data_len_left % 8);
348
DEBUG(10,("create_next_pdu_schannel: adding sign/seal padding of %u\n",
353
p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN + data_len + ss_padding_len +
354
RPC_HDR_AUTH_LEN + RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN;
355
p->hdr.auth_len = RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN;
358
* Init the parse struct to point at the outgoing
362
prs_init( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
363
prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
365
/* Store the header in the data stream. */
366
if(!smb_io_rpc_hdr("hdr", &p->hdr, &outgoing_pdu, 0)) {
367
DEBUG(0,("create_next_pdu_schannel: failed to marshall RPC_HDR.\n"));
368
prs_mem_free(&outgoing_pdu);
372
if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
373
DEBUG(0,("create_next_pdu_schannel: failed to marshall RPC_HDR_RESP.\n"));
374
prs_mem_free(&outgoing_pdu);
378
/* Store the current offset. */
379
data_pos = prs_offset(&outgoing_pdu);
381
/* Copy the data into the PDU. */
383
if(!prs_append_some_prs_data(&outgoing_pdu, &p->out_data.rdata, p->out_data.data_sent_length, data_len)) {
384
DEBUG(0,("create_next_pdu_schannel: failed to copy %u bytes of data.\n", (unsigned int)data_len));
385
prs_mem_free(&outgoing_pdu);
389
/* Copy the sign/seal padding data. */
390
if (ss_padding_len) {
392
memset(pad, '\0', 8);
393
if (!prs_copy_data_in(&outgoing_pdu, pad, ss_padding_len)) {
394
DEBUG(0,("create_next_pdu_schannel: failed to add %u bytes of pad data.\n", (unsigned int)ss_padding_len));
395
prs_mem_free(&outgoing_pdu);
402
* Schannel processing.
405
RPC_HDR_AUTH auth_info;
406
RPC_AUTH_SCHANNEL_CHK verf;
408
data = prs_data_p(&outgoing_pdu) + data_pos;
409
/* Check it's the type of reply we were expecting to decode */
411
init_rpc_hdr_auth(&auth_info,
412
RPC_SCHANNEL_AUTH_TYPE,
413
p->auth.auth_level == PIPE_AUTH_LEVEL_PRIVACY ?
414
RPC_AUTH_LEVEL_PRIVACY : RPC_AUTH_LEVEL_INTEGRITY,
417
if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, &outgoing_pdu, 0)) {
418
DEBUG(0,("create_next_pdu_schannel: failed to marshall RPC_HDR_AUTH.\n"));
419
prs_mem_free(&outgoing_pdu);
423
schannel_encode(p->auth.a_u.schannel_auth,
426
&verf, data, data_len + ss_padding_len);
428
if (!smb_io_rpc_auth_schannel_chk("", RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN,
429
&verf, &outgoing_pdu, 0)) {
430
prs_mem_free(&outgoing_pdu);
434
p->auth.a_u.schannel_auth->seq_num++;
438
* Setup the counts for this PDU.
441
p->out_data.data_sent_length += data_len;
442
p->out_data.current_pdu_len = p->hdr.frag_len;
443
p->out_data.current_pdu_sent = 0;
445
prs_mem_free(&outgoing_pdu);
449
/*******************************************************************
450
Generate the next PDU to be returned from the data in p->rdata.
451
No authentication done.
452
********************************************************************/
454
static BOOL create_next_pdu_noauth(pipes_struct *p)
456
RPC_HDR_RESP hdr_resp;
458
uint32 data_space_available;
459
uint32 data_len_left;
460
prs_struct outgoing_pdu;
463
* If we're in the fault state, keep returning fault PDU's until
464
* the pipe gets closed. JRA.
468
setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
472
memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
474
/* Change the incoming request header to a response. */
475
p->hdr.pkt_type = RPC_RESPONSE;
477
/* Set up rpc header flags. */
478
if (p->out_data.data_sent_length == 0) {
479
p->hdr.flags = RPC_FLG_FIRST;
485
* Work out how much we can fit in a single PDU.
488
data_len_left = prs_offset(&p->out_data.rdata) - p->out_data.data_sent_length;
491
* Ensure there really is data left to send.
495
DEBUG(0,("create_next_pdu_noath: no data left to send !\n"));
499
data_space_available = sizeof(p->out_data.current_pdu) - RPC_HEADER_LEN - RPC_HDR_RESP_LEN;
502
* The amount we send is the minimum of the available
503
* space and the amount left to send.
506
data_len = MIN(data_len_left, data_space_available);
509
* Set up the alloc hint. This should be the data left to
513
hdr_resp.alloc_hint = data_len_left;
516
* Work out if this PDU will be the last.
519
if(p->out_data.data_sent_length + data_len >= prs_offset(&p->out_data.rdata)) {
520
p->hdr.flags |= RPC_FLG_LAST;
524
* Set up the header lengths.
527
p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN + data_len;
531
* Init the parse struct to point at the outgoing
535
prs_init( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
536
prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
538
/* Store the header in the data stream. */
539
if(!smb_io_rpc_hdr("hdr", &p->hdr, &outgoing_pdu, 0)) {
540
DEBUG(0,("create_next_pdu_noath: failed to marshall RPC_HDR.\n"));
541
prs_mem_free(&outgoing_pdu);
545
if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
546
DEBUG(0,("create_next_pdu_noath: failed to marshall RPC_HDR_RESP.\n"));
547
prs_mem_free(&outgoing_pdu);
551
/* Copy the data into the PDU. */
553
if(!prs_append_some_prs_data(&outgoing_pdu, &p->out_data.rdata, p->out_data.data_sent_length, data_len)) {
554
DEBUG(0,("create_next_pdu_noauth: failed to copy %u bytes of data.\n", (unsigned int)data_len));
555
prs_mem_free(&outgoing_pdu);
560
* Setup the counts for this PDU.
563
p->out_data.data_sent_length += data_len;
564
p->out_data.current_pdu_len = p->hdr.frag_len;
565
p->out_data.current_pdu_sent = 0;
567
prs_mem_free(&outgoing_pdu);
571
/*******************************************************************
572
Generate the next PDU to be returned from the data in p->rdata.
573
********************************************************************/
575
BOOL create_next_pdu(pipes_struct *p)
577
switch(p->auth.auth_level) {
578
case PIPE_AUTH_LEVEL_NONE:
579
case PIPE_AUTH_LEVEL_CONNECT:
580
/* This is incorrect for auth level connect. Fixme. JRA */
581
return create_next_pdu_noauth(p);
584
switch(p->auth.auth_type) {
585
case PIPE_AUTH_TYPE_NTLMSSP:
586
case PIPE_AUTH_TYPE_SPNEGO_NTLMSSP:
587
return create_next_pdu_ntlmssp(p);
588
case PIPE_AUTH_TYPE_SCHANNEL:
589
return create_next_pdu_schannel(p);
595
DEBUG(0,("create_next_pdu: invalid internal auth level %u / type %u",
596
(unsigned int)p->auth.auth_level,
597
(unsigned int)p->auth.auth_type));
601
/*******************************************************************
602
Process an NTLMSSP authentication response.
603
If this function succeeds, the user has been authenticated
604
and their domain, name and calling workstation stored in
606
*******************************************************************/
608
static BOOL pipe_ntlmssp_verify_final(pipes_struct *p, DATA_BLOB *p_resp_blob)
612
AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
614
DEBUG(5,("pipe_ntlmssp_verify_final: pipe %s checking user details\n", p->name));
618
/* this has to be done as root in order to verify the password */
620
status = auth_ntlmssp_update(a, *p_resp_blob, &reply);
623
/* Don't generate a reply. */
624
data_blob_free(&reply);
626
if (!NT_STATUS_IS_OK(status)) {
630
if (a->server_info->ptok == NULL) {
631
DEBUG(1,("Error: Authmodule failed to provide nt_user_token\n"));
632
p->pipe_user.nt_user_token = NULL;
636
/* Finally - if the pipe negotiated integrity (sign) or privacy (seal)
637
ensure the underlying NTLMSSP flags are also set. If not we should
640
if (p->auth.auth_level == PIPE_AUTH_LEVEL_INTEGRITY) {
641
if (!(a->ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SIGN)) {
642
DEBUG(0,("pipe_ntlmssp_verify_final: pipe %s : packet integrity requested "
643
"but client declined signing.\n",
648
if (p->auth.auth_level == PIPE_AUTH_LEVEL_PRIVACY) {
649
if (!(a->ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SEAL)) {
650
DEBUG(0,("pipe_ntlmssp_verify_final: pipe %s : packet privacy requested "
651
"but client declined sealing.\n",
657
DEBUG(5,("pipe_ntlmssp_verify_final: OK: user: %s domain: %s workstation: %s\n",
658
a->ntlmssp_state->user, a->ntlmssp_state->domain,
659
a->ntlmssp_state->workstation));
662
* Store the UNIX credential data (uid/gid pair) in the pipe structure.
665
p->pipe_user.ut.uid = a->server_info->uid;
666
p->pipe_user.ut.gid = a->server_info->gid;
669
* We're an authenticated bind over smb, so the session key needs to
670
* be set to "SystemLibraryDTC". Weird, but this is what Windows
671
* does. See the RPC-SAMBA3SESSIONKEY.
674
data_blob_free(&p->session_key);
675
p->session_key = generic_session_key();
676
if (!p->session_key.data) {
680
p->pipe_user.ut.ngroups = a->server_info->n_groups;
681
if (p->pipe_user.ut.ngroups) {
682
if (!(p->pipe_user.ut.groups = memdup(a->server_info->groups,
683
sizeof(gid_t) * p->pipe_user.ut.ngroups))) {
684
DEBUG(0,("pipe_ntlmssp_verify_final: failed to memdup group list to p->pipe_user.groups\n"));
685
data_blob_free(&p->session_key);
690
if (!a->server_info->ptok) {
691
DEBUG(1,("pipe_ntlmssp_verify_final: Error: Authmodule failed to provide nt_user_token\n"));
692
data_blob_free(&p->session_key);
693
SAFE_FREE(p->pipe_user.ut.groups);
697
p->pipe_user.nt_user_token = dup_nt_token(NULL, a->server_info->ptok);
698
if (!p->pipe_user.nt_user_token) {
699
DEBUG(1,("pipe_ntlmssp_verify_final: dup_nt_token failed.\n"));
700
data_blob_free(&p->session_key);
701
SAFE_FREE(p->pipe_user.ut.groups);
708
/*******************************************************************
709
The switch table for the pipe names and the functions to handle them.
710
*******************************************************************/
717
struct api_struct *cmds;
721
static struct rpc_table *rpc_lookup;
722
static int rpc_lookup_size;
724
/*******************************************************************
725
This is the "stage3" NTLMSSP response after a bind request and reply.
726
*******************************************************************/
728
BOOL api_pipe_bind_auth3(pipes_struct *p, prs_struct *rpc_in_p)
730
RPC_HDR_AUTH auth_info;
736
DEBUG(5,("api_pipe_bind_auth3: decode request. %d\n", __LINE__));
738
if (p->hdr.auth_len == 0) {
739
DEBUG(0,("api_pipe_bind_auth3: No auth field sent !\n"));
743
/* 4 bytes padding. */
744
if (!prs_uint32("pad", rpc_in_p, 0, &pad)) {
745
DEBUG(0,("api_pipe_bind_auth3: unmarshall of 4 byte pad failed.\n"));
750
* Decode the authentication verifier response.
753
if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
754
DEBUG(0,("api_pipe_bind_auth3: unmarshall of RPC_HDR_AUTH failed.\n"));
758
if (auth_info.auth_type != RPC_NTLMSSP_AUTH_TYPE) {
759
DEBUG(0,("api_pipe_bind_auth3: incorrect auth type (%u).\n",
760
(unsigned int)auth_info.auth_type ));
764
blob = data_blob(NULL,p->hdr.auth_len);
766
if (!prs_copy_data_out((char *)blob.data, rpc_in_p, p->hdr.auth_len)) {
767
DEBUG(0,("api_pipe_bind_auth3: Failed to pull %u bytes - the response blob.\n",
768
(unsigned int)p->hdr.auth_len ));
773
* The following call actually checks the challenge/response data.
774
* for correctness against the given DOMAIN\user name.
777
if (!pipe_ntlmssp_verify_final(p, &blob)) {
781
data_blob_free(&blob);
783
p->pipe_bound = True;
789
data_blob_free(&blob);
790
free_pipe_ntlmssp_auth_data(&p->auth);
791
p->auth.a_u.auth_ntlmssp_state = NULL;
796
/*******************************************************************
797
Marshall a bind_nak pdu.
798
*******************************************************************/
800
static BOOL setup_bind_nak(pipes_struct *p)
802
prs_struct outgoing_rpc;
806
/* Free any memory in the current return data buffer. */
807
prs_mem_free(&p->out_data.rdata);
810
* Marshall directly into the outgoing PDU space. We
811
* must do this as we need to set to the bind response
812
* header and are never sending more than one PDU here.
815
prs_init( &outgoing_rpc, 0, p->mem_ctx, MARSHALL);
816
prs_give_memory( &outgoing_rpc, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
819
* Initialize a bind_nak header.
822
init_rpc_hdr(&nak_hdr, RPC_BINDNACK, RPC_FLG_FIRST | RPC_FLG_LAST,
823
p->hdr.call_id, RPC_HEADER_LEN + sizeof(uint16), 0);
826
* Marshall the header into the outgoing PDU.
829
if(!smb_io_rpc_hdr("", &nak_hdr, &outgoing_rpc, 0)) {
830
DEBUG(0,("setup_bind_nak: marshalling of RPC_HDR failed.\n"));
831
prs_mem_free(&outgoing_rpc);
836
* Now add the reject reason.
839
if(!prs_uint16("reject code", &outgoing_rpc, 0, &zero)) {
840
prs_mem_free(&outgoing_rpc);
844
p->out_data.data_sent_length = 0;
845
p->out_data.current_pdu_len = prs_offset(&outgoing_rpc);
846
p->out_data.current_pdu_sent = 0;
848
if (p->auth.auth_data_free_func) {
849
(*p->auth.auth_data_free_func)(&p->auth);
851
p->auth.auth_level = PIPE_AUTH_LEVEL_NONE;
852
p->auth.auth_type = PIPE_AUTH_TYPE_NONE;
853
p->pipe_bound = False;
858
/*******************************************************************
859
Marshall a fault pdu.
860
*******************************************************************/
862
BOOL setup_fault_pdu(pipes_struct *p, NTSTATUS status)
864
prs_struct outgoing_pdu;
866
RPC_HDR_RESP hdr_resp;
867
RPC_HDR_FAULT fault_resp;
869
/* Free any memory in the current return data buffer. */
870
prs_mem_free(&p->out_data.rdata);
873
* Marshall directly into the outgoing PDU space. We
874
* must do this as we need to set to the bind response
875
* header and are never sending more than one PDU here.
878
prs_init( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
879
prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
882
* Initialize a fault header.
885
init_rpc_hdr(&fault_hdr, RPC_FAULT, RPC_FLG_FIRST | RPC_FLG_LAST | RPC_FLG_NOCALL,
886
p->hdr.call_id, RPC_HEADER_LEN + RPC_HDR_RESP_LEN + RPC_HDR_FAULT_LEN, 0);
889
* Initialize the HDR_RESP and FAULT parts of the PDU.
892
memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
894
fault_resp.status = status;
895
fault_resp.reserved = 0;
898
* Marshall the header into the outgoing PDU.
901
if(!smb_io_rpc_hdr("", &fault_hdr, &outgoing_pdu, 0)) {
902
DEBUG(0,("setup_fault_pdu: marshalling of RPC_HDR failed.\n"));
903
prs_mem_free(&outgoing_pdu);
907
if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
908
DEBUG(0,("setup_fault_pdu: failed to marshall RPC_HDR_RESP.\n"));
909
prs_mem_free(&outgoing_pdu);
913
if(!smb_io_rpc_hdr_fault("fault", &fault_resp, &outgoing_pdu, 0)) {
914
DEBUG(0,("setup_fault_pdu: failed to marshall RPC_HDR_FAULT.\n"));
915
prs_mem_free(&outgoing_pdu);
919
p->out_data.data_sent_length = 0;
920
p->out_data.current_pdu_len = prs_offset(&outgoing_pdu);
921
p->out_data.current_pdu_sent = 0;
923
prs_mem_free(&outgoing_pdu);
928
/*******************************************************************
929
Marshall a cancel_ack pdu.
930
We should probably check the auth-verifier here.
931
*******************************************************************/
933
BOOL setup_cancel_ack_reply(pipes_struct *p, prs_struct *rpc_in_p)
935
prs_struct outgoing_pdu;
936
RPC_HDR ack_reply_hdr;
938
/* Free any memory in the current return data buffer. */
939
prs_mem_free(&p->out_data.rdata);
942
* Marshall directly into the outgoing PDU space. We
943
* must do this as we need to set to the bind response
944
* header and are never sending more than one PDU here.
947
prs_init( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
948
prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
951
* Initialize a cancel_ack header.
954
init_rpc_hdr(&ack_reply_hdr, RPC_CANCEL_ACK, RPC_FLG_FIRST | RPC_FLG_LAST,
955
p->hdr.call_id, RPC_HEADER_LEN, 0);
958
* Marshall the header into the outgoing PDU.
961
if(!smb_io_rpc_hdr("", &ack_reply_hdr, &outgoing_pdu, 0)) {
962
DEBUG(0,("setup_cancel_ack_reply: marshalling of RPC_HDR failed.\n"));
963
prs_mem_free(&outgoing_pdu);
967
p->out_data.data_sent_length = 0;
968
p->out_data.current_pdu_len = prs_offset(&outgoing_pdu);
969
p->out_data.current_pdu_sent = 0;
971
prs_mem_free(&outgoing_pdu);
976
/*******************************************************************
977
Ensure a bind request has the correct abstract & transfer interface.
978
Used to reject unknown binds from Win2k.
979
*******************************************************************/
981
BOOL check_bind_req(struct pipes_struct *p, RPC_IFACE* abstract,
982
RPC_IFACE* transfer, uint32 context_id)
984
char *pipe_name = p->name;
988
fstrcpy(pname,"\\PIPE\\");
989
fstrcat(pname,pipe_name);
991
DEBUG(3,("check_bind_req for %s\n", pname));
993
/* we have to check all now since win2k introduced a new UUID on the lsaprpc pipe */
995
for ( i=0; pipe_names[i].client_pipe; i++ ) {
996
DEBUG(10,("checking %s\n", pipe_names[i].client_pipe));
997
if ( strequal(pipe_names[i].client_pipe, pname)
998
&& (abstract->version == pipe_names[i].abstr_syntax.version)
999
&& (memcmp(&abstract->uuid, &pipe_names[i].abstr_syntax.uuid, sizeof(struct uuid)) == 0)
1000
&& (transfer->version == pipe_names[i].trans_syntax.version)
1001
&& (memcmp(&transfer->uuid, &pipe_names[i].trans_syntax.uuid, sizeof(struct uuid)) == 0) ) {
1002
struct api_struct *fns = NULL;
1004
PIPE_RPC_FNS *context_fns;
1006
if ( !(context_fns = SMB_MALLOC_P(PIPE_RPC_FNS)) ) {
1007
DEBUG(0,("check_bind_req: malloc() failed!\n"));
1011
/* save the RPC function table associated with this bind */
1013
get_pipe_fns(i, &fns, &n_fns);
1015
context_fns->cmds = fns;
1016
context_fns->n_cmds = n_fns;
1017
context_fns->context_id = context_id;
1019
/* add to the list of open contexts */
1021
DLIST_ADD( p->contexts, context_fns );
1027
if(pipe_names[i].client_pipe == NULL) {
1034
/*******************************************************************
1035
Register commands to an RPC pipe
1036
*******************************************************************/
1038
NTSTATUS rpc_pipe_register_commands(int version, const char *clnt, const char *srv, const struct api_struct *cmds, int size)
1040
struct rpc_table *rpc_entry;
1042
if (!clnt || !srv || !cmds) {
1043
return NT_STATUS_INVALID_PARAMETER;
1046
if (version != SMB_RPC_INTERFACE_VERSION) {
1047
DEBUG(0,("Can't register rpc commands!\n"
1048
"You tried to register a rpc module with SMB_RPC_INTERFACE_VERSION %d"
1049
", while this version of samba uses version %d!\n",
1050
version,SMB_RPC_INTERFACE_VERSION));
1051
return NT_STATUS_OBJECT_TYPE_MISMATCH;
1056
* we still need to make sure that don't register the same commands twice!!!
1061
/* We use a temporary variable because this call can fail and
1062
rpc_lookup will still be valid afterwards. It could then succeed if
1063
called again later */
1065
rpc_entry = SMB_REALLOC_ARRAY_KEEP_OLD_ON_ERROR(rpc_lookup, struct rpc_table, rpc_lookup_size);
1066
if (NULL == rpc_entry) {
1068
DEBUG(0, ("rpc_pipe_register_commands: memory allocation failed\n"));
1069
return NT_STATUS_NO_MEMORY;
1071
rpc_lookup = rpc_entry;
1074
rpc_entry = rpc_lookup + (rpc_lookup_size - 1);
1075
ZERO_STRUCTP(rpc_entry);
1076
rpc_entry->pipe.clnt = SMB_STRDUP(clnt);
1077
rpc_entry->pipe.srv = SMB_STRDUP(srv);
1078
rpc_entry->cmds = SMB_REALLOC_ARRAY(rpc_entry->cmds, struct api_struct, rpc_entry->n_cmds + size);
1079
if (!rpc_entry->cmds) {
1080
return NT_STATUS_NO_MEMORY;
1082
memcpy(rpc_entry->cmds + rpc_entry->n_cmds, cmds, size * sizeof(struct api_struct));
1083
rpc_entry->n_cmds += size;
1085
return NT_STATUS_OK;
1088
/*******************************************************************
1089
Handle a SPNEGO krb5 bind auth.
1090
*******************************************************************/
1092
static BOOL pipe_spnego_auth_bind_kerberos(pipes_struct *p, prs_struct *rpc_in_p, RPC_HDR_AUTH *pauth_info,
1093
DATA_BLOB *psecblob, prs_struct *pout_auth)
1098
/*******************************************************************
1099
Handle the first part of a SPNEGO bind auth.
1100
*******************************************************************/
1102
static BOOL pipe_spnego_auth_bind_negotiate(pipes_struct *p, prs_struct *rpc_in_p,
1103
RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
1109
char *OIDs[ASN1_MAX_OIDS];
1112
BOOL got_kerberos_mechanism = False;
1113
AUTH_NTLMSSP_STATE *a = NULL;
1114
RPC_HDR_AUTH auth_info;
1116
ZERO_STRUCT(secblob);
1118
ZERO_STRUCT(response);
1120
/* Grab the SPNEGO blob. */
1121
blob = data_blob(NULL,p->hdr.auth_len);
1123
if (!prs_copy_data_out((char *)blob.data, rpc_in_p, p->hdr.auth_len)) {
1124
DEBUG(0,("pipe_spnego_auth_bind_negotiate: Failed to pull %u bytes - the SPNEGO auth header.\n",
1125
(unsigned int)p->hdr.auth_len ));
1129
if (blob.data[0] != ASN1_APPLICATION(0)) {
1133
/* parse out the OIDs and the first sec blob */
1134
if (!parse_negTokenTarg(blob, OIDs, &secblob)) {
1135
DEBUG(0,("pipe_spnego_auth_bind_negotiate: Failed to parse the security blob.\n"));
1139
if (strcmp(OID_KERBEROS5, OIDs[0]) == 0 || strcmp(OID_KERBEROS5_OLD, OIDs[0]) == 0) {
1140
got_kerberos_mechanism = True;
1143
for (i=0;OIDs[i];i++) {
1144
DEBUG(3,("pipe_spnego_auth_bind_negotiate: Got OID %s\n", OIDs[i]));
1147
DEBUG(3,("pipe_spnego_auth_bind_negotiate: Got secblob of size %lu\n", (unsigned long)secblob.length));
1149
if ( got_kerberos_mechanism && ((lp_security()==SEC_ADS) || lp_use_kerberos_keytab()) ) {
1150
BOOL ret = pipe_spnego_auth_bind_kerberos(p, rpc_in_p, pauth_info, &secblob, pout_auth);
1151
data_blob_free(&secblob);
1152
data_blob_free(&blob);
1156
if (p->auth.auth_type == PIPE_AUTH_TYPE_SPNEGO_NTLMSSP && p->auth.a_u.auth_ntlmssp_state) {
1157
/* Free any previous auth type. */
1158
free_pipe_ntlmssp_auth_data(&p->auth);
1161
/* Initialize the NTLM engine. */
1162
status = auth_ntlmssp_start(&a);
1163
if (!NT_STATUS_IS_OK(status)) {
1168
* Pass the first security blob of data to it.
1169
* This can return an error or NT_STATUS_MORE_PROCESSING_REQUIRED
1170
* which means we need another packet to complete the bind.
1173
status = auth_ntlmssp_update(a, secblob, &chal);
1175
if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1176
DEBUG(3,("pipe_spnego_auth_bind_negotiate: auth_ntlmssp_update failed.\n"));
1180
/* Generate the response blob we need for step 2 of the bind. */
1181
response = spnego_gen_auth_response(&chal, status, OID_NTLMSSP);
1183
/* Copy the blob into the pout_auth parse struct */
1184
init_rpc_hdr_auth(&auth_info, RPC_SPNEGO_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
1185
if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
1186
DEBUG(0,("pipe_spnego_auth_bind_negotiate: marshalling of RPC_HDR_AUTH failed.\n"));
1190
if (!prs_copy_data_in(pout_auth, (char *)response.data, response.length)) {
1191
DEBUG(0,("pipe_spnego_auth_bind_negotiate: marshalling of data blob failed.\n"));
1195
p->auth.a_u.auth_ntlmssp_state = a;
1196
p->auth.auth_data_free_func = &free_pipe_ntlmssp_auth_data;
1197
p->auth.auth_type = PIPE_AUTH_TYPE_SPNEGO_NTLMSSP;
1199
data_blob_free(&blob);
1200
data_blob_free(&secblob);
1201
data_blob_free(&chal);
1202
data_blob_free(&response);
1204
/* We can't set pipe_bound True yet - we need an RPC_ALTER_CONTEXT response packet... */
1209
data_blob_free(&blob);
1210
data_blob_free(&secblob);
1211
data_blob_free(&chal);
1212
data_blob_free(&response);
1214
p->auth.a_u.auth_ntlmssp_state = NULL;
1219
/*******************************************************************
1220
Handle the second part of a SPNEGO bind auth.
1221
*******************************************************************/
1223
static BOOL pipe_spnego_auth_bind_continue(pipes_struct *p, prs_struct *rpc_in_p,
1224
RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
1226
RPC_HDR_AUTH auth_info;
1227
DATA_BLOB spnego_blob;
1228
DATA_BLOB auth_blob;
1229
DATA_BLOB auth_reply;
1231
AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
1233
ZERO_STRUCT(spnego_blob);
1234
ZERO_STRUCT(auth_blob);
1235
ZERO_STRUCT(auth_reply);
1236
ZERO_STRUCT(response);
1238
if (p->auth.auth_type != PIPE_AUTH_TYPE_SPNEGO_NTLMSSP || !a) {
1239
DEBUG(0,("pipe_spnego_auth_bind_continue: not in NTLMSSP auth state.\n"));
1243
/* Grab the SPNEGO blob. */
1244
spnego_blob = data_blob(NULL,p->hdr.auth_len);
1246
if (!prs_copy_data_out((char *)spnego_blob.data, rpc_in_p, p->hdr.auth_len)) {
1247
DEBUG(0,("pipe_spnego_auth_bind_continue: Failed to pull %u bytes - the SPNEGO auth header.\n",
1248
(unsigned int)p->hdr.auth_len ));
1252
if (spnego_blob.data[0] != ASN1_CONTEXT(1)) {
1253
DEBUG(0,("pipe_spnego_auth_bind_continue: invalid SPNEGO blob type.\n"));
1257
if (!spnego_parse_auth(spnego_blob, &auth_blob)) {
1258
DEBUG(0,("pipe_spnego_auth_bind_continue: invalid SPNEGO blob.\n"));
1263
* The following call actually checks the challenge/response data.
1264
* for correctness against the given DOMAIN\user name.
1267
if (!pipe_ntlmssp_verify_final(p, &auth_blob)) {
1271
data_blob_free(&spnego_blob);
1272
data_blob_free(&auth_blob);
1274
/* Generate the spnego "accept completed" blob - no incoming data. */
1275
response = spnego_gen_auth_response(&auth_reply, NT_STATUS_OK, OID_NTLMSSP);
1277
/* Copy the blob into the pout_auth parse struct */
1278
init_rpc_hdr_auth(&auth_info, RPC_SPNEGO_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
1279
if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
1280
DEBUG(0,("pipe_spnego_auth_bind_continue: marshalling of RPC_HDR_AUTH failed.\n"));
1284
if (!prs_copy_data_in(pout_auth, (char *)response.data, response.length)) {
1285
DEBUG(0,("pipe_spnego_auth_bind_continue: marshalling of data blob failed.\n"));
1289
data_blob_free(&auth_reply);
1290
data_blob_free(&response);
1292
p->pipe_bound = True;
1298
data_blob_free(&spnego_blob);
1299
data_blob_free(&auth_blob);
1300
data_blob_free(&auth_reply);
1301
data_blob_free(&response);
1303
free_pipe_ntlmssp_auth_data(&p->auth);
1304
p->auth.a_u.auth_ntlmssp_state = NULL;
1309
/*******************************************************************
1310
Handle an schannel bind auth.
1311
*******************************************************************/
1313
static BOOL pipe_schannel_auth_bind(pipes_struct *p, prs_struct *rpc_in_p,
1314
RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
1316
RPC_HDR_AUTH auth_info;
1317
RPC_AUTH_SCHANNEL_NEG neg;
1318
RPC_AUTH_VERIFIER auth_verifier;
1320
struct dcinfo *pdcinfo;
1323
if (!smb_io_rpc_auth_schannel_neg("", &neg, rpc_in_p, 0)) {
1324
DEBUG(0,("pipe_schannel_auth_bind: Could not unmarshal SCHANNEL auth neg\n"));
1329
* The neg.myname key here must match the remote computer name
1330
* given in the DOM_CLNT_SRV.uni_comp_name used on all netlogon pipe
1331
* operations that use credentials.
1335
ret = secrets_restore_schannel_session_info(p->mem_ctx, neg.myname, &pdcinfo);
1339
DEBUG(0, ("pipe_schannel_auth_bind: Attempt to bind using schannel without successful serverauth2\n"));
1343
p->auth.a_u.schannel_auth = TALLOC_P(p->pipe_state_mem_ctx, struct schannel_auth_struct);
1344
if (!p->auth.a_u.schannel_auth) {
1345
TALLOC_FREE(pdcinfo);
1349
memset(p->auth.a_u.schannel_auth->sess_key, 0, sizeof(p->auth.a_u.schannel_auth->sess_key));
1350
memcpy(p->auth.a_u.schannel_auth->sess_key, pdcinfo->sess_key,
1351
sizeof(pdcinfo->sess_key));
1353
TALLOC_FREE(pdcinfo);
1355
p->auth.a_u.schannel_auth->seq_num = 0;
1358
* JRA. Should we also copy the schannel session key into the pipe session key p->session_key
1359
* here ? We do that for NTLMSSP, but the session key is already set up from the vuser
1360
* struct of the person who opened the pipe. I need to test this further. JRA.
1362
* VL. As we are mapping this to guest set the generic key
1363
* "SystemLibraryDTC" key here. It's a bit difficult to test against
1364
* W2k3, as it does not allow schannel binds against SAMR and LSA
1368
data_blob_free(&p->session_key);
1369
p->session_key = generic_session_key();
1370
if (p->session_key.data == NULL) {
1371
DEBUG(0, ("pipe_schannel_auth_bind: Could not alloc session"
1376
init_rpc_hdr_auth(&auth_info, RPC_SCHANNEL_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
1377
if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
1378
DEBUG(0,("pipe_schannel_auth_bind: marshalling of RPC_HDR_AUTH failed.\n"));
1382
/*** SCHANNEL verifier ***/
1384
init_rpc_auth_verifier(&auth_verifier, "\001", 0x0);
1385
if(!smb_io_rpc_schannel_verifier("", &auth_verifier, pout_auth, 0)) {
1386
DEBUG(0,("pipe_schannel_auth_bind: marshalling of RPC_AUTH_VERIFIER failed.\n"));
1390
prs_align(pout_auth);
1393
if(!prs_uint32("flags ", pout_auth, 0, &flags)) {
1397
DEBUG(10,("pipe_schannel_auth_bind: schannel auth: domain [%s] myname [%s]\n",
1398
neg.domain, neg.myname));
1400
/* We're finished with this bind - no more packets. */
1401
p->auth.auth_data_free_func = NULL;
1402
p->auth.auth_type = PIPE_AUTH_TYPE_SCHANNEL;
1404
if (!set_current_user_guest(&p->pipe_user)) {
1405
DEBUG(1, ("pipe_schannel_auth_bind: Could not set guest "
1410
p->pipe_bound = True;
1415
/*******************************************************************
1416
Handle an NTLMSSP bind auth.
1417
*******************************************************************/
1419
static BOOL pipe_ntlmssp_auth_bind(pipes_struct *p, prs_struct *rpc_in_p,
1420
RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
1422
RPC_HDR_AUTH auth_info;
1426
AUTH_NTLMSSP_STATE *a = NULL;
1429
ZERO_STRUCT(response);
1431
/* Grab the NTLMSSP blob. */
1432
blob = data_blob(NULL,p->hdr.auth_len);
1434
if (!prs_copy_data_out((char *)blob.data, rpc_in_p, p->hdr.auth_len)) {
1435
DEBUG(0,("pipe_ntlmssp_auth_bind: Failed to pull %u bytes - the NTLM auth header.\n",
1436
(unsigned int)p->hdr.auth_len ));
1440
if (strncmp((char *)blob.data, "NTLMSSP", 7) != 0) {
1441
DEBUG(0,("pipe_ntlmssp_auth_bind: Failed to read NTLMSSP in blob\n"));
1445
/* We have an NTLMSSP blob. */
1446
status = auth_ntlmssp_start(&a);
1447
if (!NT_STATUS_IS_OK(status)) {
1448
DEBUG(0,("pipe_ntlmssp_auth_bind: auth_ntlmssp_start failed: %s\n",
1449
nt_errstr(status) ));
1453
status = auth_ntlmssp_update(a, blob, &response);
1454
if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1455
DEBUG(0,("pipe_ntlmssp_auth_bind: auth_ntlmssp_update failed: %s\n",
1456
nt_errstr(status) ));
1460
data_blob_free(&blob);
1462
/* Copy the blob into the pout_auth parse struct */
1463
init_rpc_hdr_auth(&auth_info, RPC_NTLMSSP_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
1464
if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
1465
DEBUG(0,("pipe_ntlmssp_auth_bind: marshalling of RPC_HDR_AUTH failed.\n"));
1469
if (!prs_copy_data_in(pout_auth, (char *)response.data, response.length)) {
1470
DEBUG(0,("pipe_ntlmssp_auth_bind: marshalling of data blob failed.\n"));
1474
p->auth.a_u.auth_ntlmssp_state = a;
1475
p->auth.auth_data_free_func = &free_pipe_ntlmssp_auth_data;
1476
p->auth.auth_type = PIPE_AUTH_TYPE_NTLMSSP;
1478
data_blob_free(&blob);
1479
data_blob_free(&response);
1481
DEBUG(10,("pipe_ntlmssp_auth_bind: NTLMSSP auth started\n"));
1483
/* We can't set pipe_bound True yet - we need an RPC_AUTH3 response packet... */
1488
data_blob_free(&blob);
1489
data_blob_free(&response);
1491
free_pipe_ntlmssp_auth_data(&p->auth);
1492
p->auth.a_u.auth_ntlmssp_state = NULL;
1496
/*******************************************************************
1497
Respond to a pipe bind request.
1498
*******************************************************************/
1500
BOOL api_pipe_bind_req(pipes_struct *p, prs_struct *rpc_in_p)
1504
RPC_HDR_AUTH auth_info;
1506
fstring ack_pipe_name;
1507
prs_struct out_hdr_ba;
1508
prs_struct out_auth;
1509
prs_struct outgoing_rpc;
1512
unsigned int auth_type = RPC_ANONYMOUS_AUTH_TYPE;
1514
/* No rebinds on a bound pipe - use alter context. */
1515
if (p->pipe_bound) {
1516
DEBUG(2,("api_pipe_bind_req: rejecting bind request on bound pipe %s.\n", p->pipe_srv_name));
1517
return setup_bind_nak(p);
1520
prs_init( &outgoing_rpc, 0, p->mem_ctx, MARSHALL);
1523
* Marshall directly into the outgoing PDU space. We
1524
* must do this as we need to set to the bind response
1525
* header and are never sending more than one PDU here.
1528
prs_give_memory( &outgoing_rpc, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
1531
* Setup the memory to marshall the ba header, and the
1535
if(!prs_init(&out_hdr_ba, 1024, p->mem_ctx, MARSHALL)) {
1536
DEBUG(0,("api_pipe_bind_req: malloc out_hdr_ba failed.\n"));
1537
prs_mem_free(&outgoing_rpc);
1541
if(!prs_init(&out_auth, 1024, p->mem_ctx, MARSHALL)) {
1542
DEBUG(0,("api_pipe_bind_req: malloc out_auth failed.\n"));
1543
prs_mem_free(&outgoing_rpc);
1544
prs_mem_free(&out_hdr_ba);
1548
DEBUG(5,("api_pipe_bind_req: decode request. %d\n", __LINE__));
1551
* Try and find the correct pipe name to ensure
1552
* that this is a pipe name we support.
1556
for (i = 0; i < rpc_lookup_size; i++) {
1557
if (strequal(rpc_lookup[i].pipe.clnt, p->name)) {
1558
DEBUG(3, ("api_pipe_bind_req: \\PIPE\\%s -> \\PIPE\\%s\n",
1559
rpc_lookup[i].pipe.clnt, rpc_lookup[i].pipe.srv));
1560
fstrcpy(p->pipe_srv_name, rpc_lookup[i].pipe.srv);
1565
if (i == rpc_lookup_size) {
1566
if (NT_STATUS_IS_ERR(smb_probe_module("rpc", p->name))) {
1567
DEBUG(3,("api_pipe_bind_req: Unknown pipe name %s in bind request.\n",
1569
prs_mem_free(&outgoing_rpc);
1570
prs_mem_free(&out_hdr_ba);
1571
prs_mem_free(&out_auth);
1573
return setup_bind_nak(p);
1576
for (i = 0; i < rpc_lookup_size; i++) {
1577
if (strequal(rpc_lookup[i].pipe.clnt, p->name)) {
1578
DEBUG(3, ("api_pipe_bind_req: \\PIPE\\%s -> \\PIPE\\%s\n",
1579
rpc_lookup[i].pipe.clnt, rpc_lookup[i].pipe.srv));
1580
fstrcpy(p->pipe_srv_name, rpc_lookup[i].pipe.srv);
1585
if (i == rpc_lookup_size) {
1586
DEBUG(0, ("module %s doesn't provide functions for pipe %s!\n", p->name, p->name));
1591
/* decode the bind request */
1592
if(!smb_io_rpc_hdr_rb("", &hdr_rb, rpc_in_p, 0)) {
1593
DEBUG(0,("api_pipe_bind_req: unable to unmarshall RPC_HDR_RB struct.\n"));
1597
/* name has to be \PIPE\xxxxx */
1598
fstrcpy(ack_pipe_name, "\\PIPE\\");
1599
fstrcat(ack_pipe_name, p->pipe_srv_name);
1601
DEBUG(5,("api_pipe_bind_req: make response. %d\n", __LINE__));
1604
* Check if this is an authenticated bind request.
1607
if (p->hdr.auth_len) {
1609
* Decode the authentication verifier.
1612
if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
1613
DEBUG(0,("api_pipe_bind_req: unable to unmarshall RPC_HDR_AUTH struct.\n"));
1617
auth_type = auth_info.auth_type;
1619
/* Work out if we have to sign or seal etc. */
1620
switch (auth_info.auth_level) {
1621
case RPC_AUTH_LEVEL_INTEGRITY:
1622
p->auth.auth_level = PIPE_AUTH_LEVEL_INTEGRITY;
1624
case RPC_AUTH_LEVEL_PRIVACY:
1625
p->auth.auth_level = PIPE_AUTH_LEVEL_PRIVACY;
1628
DEBUG(0,("api_pipe_bind_req: unexpected auth level (%u).\n",
1629
(unsigned int)auth_info.auth_level ));
1633
ZERO_STRUCT(auth_info);
1636
assoc_gid = hdr_rb.bba.assoc_gid ? hdr_rb.bba.assoc_gid : 0x53f0;
1639
case RPC_NTLMSSP_AUTH_TYPE:
1640
if (!pipe_ntlmssp_auth_bind(p, rpc_in_p, &auth_info, &out_auth)) {
1646
case RPC_SCHANNEL_AUTH_TYPE:
1647
if (!pipe_schannel_auth_bind(p, rpc_in_p, &auth_info, &out_auth)) {
1652
case RPC_SPNEGO_AUTH_TYPE:
1653
if (!pipe_spnego_auth_bind_negotiate(p, rpc_in_p, &auth_info, &out_auth)) {
1658
case RPC_ANONYMOUS_AUTH_TYPE:
1659
/* Unauthenticated bind request. */
1660
/* Get the authenticated pipe user from current_user */
1661
if (!copy_current_user(&p->pipe_user, ¤t_user)) {
1662
DEBUG(10, ("Could not copy current user\n"));
1665
/* We're finished - no more packets. */
1666
p->auth.auth_type = PIPE_AUTH_TYPE_NONE;
1667
/* We must set the pipe auth_level here also. */
1668
p->auth.auth_level = PIPE_AUTH_LEVEL_NONE;
1669
p->pipe_bound = True;
1670
/* The session key was initialized from the SMB
1671
* session in make_internal_rpc_pipe_p */
1675
DEBUG(0,("api_pipe_bind_req: unknown auth type %x requested.\n", auth_type ));
1680
* Create the bind response struct.
1683
/* If the requested abstract synt uuid doesn't match our client pipe,
1684
reject the bind_ack & set the transfer interface synt to all 0's,
1685
ver 0 (observed when NT5 attempts to bind to abstract interfaces
1687
Needed when adding entries to a DACL from NT5 - SK */
1689
if(check_bind_req(p, &hdr_rb.rpc_context[0].abstract, &hdr_rb.rpc_context[0].transfer[0],
1690
hdr_rb.rpc_context[0].context_id )) {
1691
init_rpc_hdr_ba(&hdr_ba,
1692
RPC_MAX_PDU_FRAG_LEN,
1693
RPC_MAX_PDU_FRAG_LEN,
1697
&hdr_rb.rpc_context[0].transfer[0]);
1699
RPC_IFACE null_interface;
1700
ZERO_STRUCT(null_interface);
1701
/* Rejection reason: abstract syntax not supported */
1702
init_rpc_hdr_ba(&hdr_ba, RPC_MAX_PDU_FRAG_LEN,
1703
RPC_MAX_PDU_FRAG_LEN, assoc_gid,
1704
ack_pipe_name, 0x1, 0x2, 0x1,
1706
p->pipe_bound = False;
1713
if(!smb_io_rpc_hdr_ba("", &hdr_ba, &out_hdr_ba, 0)) {
1714
DEBUG(0,("api_pipe_bind_req: marshalling of RPC_HDR_BA failed.\n"));
1719
* Create the header, now we know the length.
1722
if (prs_offset(&out_auth)) {
1723
auth_len = prs_offset(&out_auth) - RPC_HDR_AUTH_LEN;
1726
init_rpc_hdr(&p->hdr, RPC_BINDACK, RPC_FLG_FIRST | RPC_FLG_LAST,
1728
RPC_HEADER_LEN + prs_offset(&out_hdr_ba) + prs_offset(&out_auth),
1732
* Marshall the header into the outgoing PDU.
1735
if(!smb_io_rpc_hdr("", &p->hdr, &outgoing_rpc, 0)) {
1736
DEBUG(0,("api_pipe_bind_req: marshalling of RPC_HDR failed.\n"));
1741
* Now add the RPC_HDR_BA and any auth needed.
1744
if(!prs_append_prs_data( &outgoing_rpc, &out_hdr_ba)) {
1745
DEBUG(0,("api_pipe_bind_req: append of RPC_HDR_BA failed.\n"));
1749
if (auth_len && !prs_append_prs_data( &outgoing_rpc, &out_auth)) {
1750
DEBUG(0,("api_pipe_bind_req: append of auth info failed.\n"));
1755
* Setup the lengths for the initial reply.
1758
p->out_data.data_sent_length = 0;
1759
p->out_data.current_pdu_len = prs_offset(&outgoing_rpc);
1760
p->out_data.current_pdu_sent = 0;
1762
prs_mem_free(&out_hdr_ba);
1763
prs_mem_free(&out_auth);
1769
prs_mem_free(&outgoing_rpc);
1770
prs_mem_free(&out_hdr_ba);
1771
prs_mem_free(&out_auth);
1772
return setup_bind_nak(p);
1775
/****************************************************************************
1776
Deal with an alter context call. Can be third part of 3 leg auth request for
1778
****************************************************************************/
1780
BOOL api_pipe_alter_context(pipes_struct *p, prs_struct *rpc_in_p)
1784
RPC_HDR_AUTH auth_info;
1786
fstring ack_pipe_name;
1787
prs_struct out_hdr_ba;
1788
prs_struct out_auth;
1789
prs_struct outgoing_rpc;
1792
prs_init( &outgoing_rpc, 0, p->mem_ctx, MARSHALL);
1795
* Marshall directly into the outgoing PDU space. We
1796
* must do this as we need to set to the bind response
1797
* header and are never sending more than one PDU here.
1800
prs_give_memory( &outgoing_rpc, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
1803
* Setup the memory to marshall the ba header, and the
1807
if(!prs_init(&out_hdr_ba, 1024, p->mem_ctx, MARSHALL)) {
1808
DEBUG(0,("api_pipe_alter_context: malloc out_hdr_ba failed.\n"));
1809
prs_mem_free(&outgoing_rpc);
1813
if(!prs_init(&out_auth, 1024, p->mem_ctx, MARSHALL)) {
1814
DEBUG(0,("api_pipe_alter_context: malloc out_auth failed.\n"));
1815
prs_mem_free(&outgoing_rpc);
1816
prs_mem_free(&out_hdr_ba);
1820
DEBUG(5,("api_pipe_alter_context: decode request. %d\n", __LINE__));
1822
/* decode the alter context request */
1823
if(!smb_io_rpc_hdr_rb("", &hdr_rb, rpc_in_p, 0)) {
1824
DEBUG(0,("api_pipe_alter_context: unable to unmarshall RPC_HDR_RB struct.\n"));
1828
/* secondary address CAN be NULL
1829
* as the specs say it's ignored.
1830
* It MUST be NULL to have the spoolss working.
1832
fstrcpy(ack_pipe_name,"");
1834
DEBUG(5,("api_pipe_alter_context: make response. %d\n", __LINE__));
1837
* Check if this is an authenticated alter context request.
1840
if (p->hdr.auth_len != 0) {
1842
* Decode the authentication verifier.
1845
if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
1846
DEBUG(0,("api_pipe_alter_context: unable to unmarshall RPC_HDR_AUTH struct.\n"));
1851
* Currently only the SPNEGO auth type uses the alter ctx
1852
* response in place of the NTLMSSP auth3 type.
1855
if (auth_info.auth_type == RPC_SPNEGO_AUTH_TYPE) {
1856
/* We can only finish if the pipe is unbound. */
1857
if (!p->pipe_bound) {
1858
if (!pipe_spnego_auth_bind_continue(p, rpc_in_p, &auth_info, &out_auth)) {
1866
ZERO_STRUCT(auth_info);
1869
assoc_gid = hdr_rb.bba.assoc_gid ? hdr_rb.bba.assoc_gid : 0x53f0;
1872
* Create the bind response struct.
1875
/* If the requested abstract synt uuid doesn't match our client pipe,
1876
reject the bind_ack & set the transfer interface synt to all 0's,
1877
ver 0 (observed when NT5 attempts to bind to abstract interfaces
1879
Needed when adding entries to a DACL from NT5 - SK */
1881
if(check_bind_req(p, &hdr_rb.rpc_context[0].abstract, &hdr_rb.rpc_context[0].transfer[0],
1882
hdr_rb.rpc_context[0].context_id )) {
1883
init_rpc_hdr_ba(&hdr_ba,
1884
RPC_MAX_PDU_FRAG_LEN,
1885
RPC_MAX_PDU_FRAG_LEN,
1889
&hdr_rb.rpc_context[0].transfer[0]);
1891
RPC_IFACE null_interface;
1892
ZERO_STRUCT(null_interface);
1893
/* Rejection reason: abstract syntax not supported */
1894
init_rpc_hdr_ba(&hdr_ba, RPC_MAX_PDU_FRAG_LEN,
1895
RPC_MAX_PDU_FRAG_LEN, assoc_gid,
1896
ack_pipe_name, 0x1, 0x2, 0x1,
1898
p->pipe_bound = False;
1905
if(!smb_io_rpc_hdr_ba("", &hdr_ba, &out_hdr_ba, 0)) {
1906
DEBUG(0,("api_pipe_alter_context: marshalling of RPC_HDR_BA failed.\n"));
1911
* Create the header, now we know the length.
1914
if (prs_offset(&out_auth)) {
1915
auth_len = prs_offset(&out_auth) - RPC_HDR_AUTH_LEN;
1918
init_rpc_hdr(&p->hdr, RPC_ALTCONTRESP, RPC_FLG_FIRST | RPC_FLG_LAST,
1920
RPC_HEADER_LEN + prs_offset(&out_hdr_ba) + prs_offset(&out_auth),
1924
* Marshall the header into the outgoing PDU.
1927
if(!smb_io_rpc_hdr("", &p->hdr, &outgoing_rpc, 0)) {
1928
DEBUG(0,("api_pipe_alter_context: marshalling of RPC_HDR failed.\n"));
1933
* Now add the RPC_HDR_BA and any auth needed.
1936
if(!prs_append_prs_data( &outgoing_rpc, &out_hdr_ba)) {
1937
DEBUG(0,("api_pipe_alter_context: append of RPC_HDR_BA failed.\n"));
1941
if (auth_len && !prs_append_prs_data( &outgoing_rpc, &out_auth)) {
1942
DEBUG(0,("api_pipe_alter_context: append of auth info failed.\n"));
1947
* Setup the lengths for the initial reply.
1950
p->out_data.data_sent_length = 0;
1951
p->out_data.current_pdu_len = prs_offset(&outgoing_rpc);
1952
p->out_data.current_pdu_sent = 0;
1954
prs_mem_free(&out_hdr_ba);
1955
prs_mem_free(&out_auth);
1961
prs_mem_free(&outgoing_rpc);
1962
prs_mem_free(&out_hdr_ba);
1963
prs_mem_free(&out_auth);
1964
return setup_bind_nak(p);
1967
/****************************************************************************
1968
Deal with NTLMSSP sign & seal processing on an RPC request.
1969
****************************************************************************/
1971
BOOL api_pipe_ntlmssp_auth_process(pipes_struct *p, prs_struct *rpc_in,
1972
uint32 *p_ss_padding_len, NTSTATUS *pstatus)
1974
RPC_HDR_AUTH auth_info;
1975
uint32 auth_len = p->hdr.auth_len;
1976
uint32 save_offset = prs_offset(rpc_in);
1977
AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
1978
unsigned char *data = NULL;
1980
unsigned char *full_packet_data = NULL;
1981
size_t full_packet_data_len;
1982
DATA_BLOB auth_blob;
1984
*pstatus = NT_STATUS_OK;
1986
if (p->auth.auth_level == PIPE_AUTH_LEVEL_NONE || p->auth.auth_level == PIPE_AUTH_LEVEL_CONNECT) {
1991
*pstatus = NT_STATUS_INVALID_PARAMETER;
1995
/* Ensure there's enough data for an authenticated request. */
1996
if ((auth_len > RPC_MAX_SIGN_SIZE) ||
1997
(RPC_HEADER_LEN + RPC_HDR_REQ_LEN + RPC_HDR_AUTH_LEN + auth_len > p->hdr.frag_len)) {
1998
DEBUG(0,("api_pipe_ntlmssp_auth_process: auth_len %u is too large.\n",
1999
(unsigned int)auth_len ));
2000
*pstatus = NT_STATUS_INVALID_PARAMETER;
2005
* We need the full packet data + length (minus auth stuff) as well as the packet data + length
2006
* after the RPC header.
2007
* We need to pass in the full packet (minus auth len) to the NTLMSSP sign and check seal
2008
* functions as NTLMv2 checks the rpc headers also.
2011
data = (unsigned char *)(prs_data_p(rpc_in) + RPC_HDR_REQ_LEN);
2012
data_len = (size_t)(p->hdr.frag_len - RPC_HEADER_LEN - RPC_HDR_REQ_LEN - RPC_HDR_AUTH_LEN - auth_len);
2014
full_packet_data = p->in_data.current_in_pdu;
2015
full_packet_data_len = p->hdr.frag_len - auth_len;
2017
/* Pull the auth header and the following data into a blob. */
2018
if(!prs_set_offset(rpc_in, RPC_HDR_REQ_LEN + data_len)) {
2019
DEBUG(0,("api_pipe_ntlmssp_auth_process: cannot move offset to %u.\n",
2020
(unsigned int)RPC_HDR_REQ_LEN + (unsigned int)data_len ));
2021
*pstatus = NT_STATUS_INVALID_PARAMETER;
2025
if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, rpc_in, 0)) {
2026
DEBUG(0,("api_pipe_ntlmssp_auth_process: failed to unmarshall RPC_HDR_AUTH.\n"));
2027
*pstatus = NT_STATUS_INVALID_PARAMETER;
2031
auth_blob.data = (unsigned char *)prs_data_p(rpc_in) + prs_offset(rpc_in);
2032
auth_blob.length = auth_len;
2034
switch (p->auth.auth_level) {
2035
case PIPE_AUTH_LEVEL_PRIVACY:
2036
/* Data is encrypted. */
2037
*pstatus = ntlmssp_unseal_packet(a->ntlmssp_state,
2040
full_packet_data_len,
2042
if (!NT_STATUS_IS_OK(*pstatus)) {
2046
case PIPE_AUTH_LEVEL_INTEGRITY:
2047
/* Data is signed. */
2048
*pstatus = ntlmssp_check_packet(a->ntlmssp_state,
2051
full_packet_data_len,
2053
if (!NT_STATUS_IS_OK(*pstatus)) {
2058
*pstatus = NT_STATUS_INVALID_PARAMETER;
2063
* Return the current pointer to the data offset.
2066
if(!prs_set_offset(rpc_in, save_offset)) {
2067
DEBUG(0,("api_pipe_auth_process: failed to set offset back to %u\n",
2068
(unsigned int)save_offset ));
2069
*pstatus = NT_STATUS_INVALID_PARAMETER;
2074
* Remember the padding length. We must remove it from the real data
2075
* stream once the sign/seal is done.
2078
*p_ss_padding_len = auth_info.auth_pad_len;
2083
/****************************************************************************
2084
Deal with schannel processing on an RPC request.
2085
****************************************************************************/
2087
BOOL api_pipe_schannel_process(pipes_struct *p, prs_struct *rpc_in, uint32 *p_ss_padding_len)
2091
uint32 save_offset = prs_offset(rpc_in);
2092
RPC_HDR_AUTH auth_info;
2093
RPC_AUTH_SCHANNEL_CHK schannel_chk;
2095
auth_len = p->hdr.auth_len;
2097
if (auth_len != RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN) {
2098
DEBUG(0,("Incorrect auth_len %u.\n", (unsigned int)auth_len ));
2103
* The following is that length of the data we must verify or unseal.
2104
* This doesn't include the RPC headers or the auth_len or the RPC_HDR_AUTH_LEN
2105
* preceeding the auth_data.
2108
if (p->hdr.frag_len < RPC_HEADER_LEN + RPC_HDR_REQ_LEN + RPC_HDR_AUTH_LEN + auth_len) {
2109
DEBUG(0,("Incorrect frag %u, auth %u.\n",
2110
(unsigned int)p->hdr.frag_len,
2111
(unsigned int)auth_len ));
2115
data_len = p->hdr.frag_len - RPC_HEADER_LEN - RPC_HDR_REQ_LEN -
2116
RPC_HDR_AUTH_LEN - auth_len;
2118
DEBUG(5,("data %d auth %d\n", data_len, auth_len));
2120
if(!prs_set_offset(rpc_in, RPC_HDR_REQ_LEN + data_len)) {
2121
DEBUG(0,("cannot move offset to %u.\n",
2122
(unsigned int)RPC_HDR_REQ_LEN + data_len ));
2126
if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, rpc_in, 0)) {
2127
DEBUG(0,("failed to unmarshall RPC_HDR_AUTH.\n"));
2131
if (auth_info.auth_type != RPC_SCHANNEL_AUTH_TYPE) {
2132
DEBUG(0,("Invalid auth info %d on schannel\n",
2133
auth_info.auth_type));
2137
if(!smb_io_rpc_auth_schannel_chk("", RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN, &schannel_chk, rpc_in, 0)) {
2138
DEBUG(0,("failed to unmarshal RPC_AUTH_SCHANNEL_CHK.\n"));
2142
if (!schannel_decode(p->auth.a_u.schannel_auth,
2144
SENDER_IS_INITIATOR,
2146
prs_data_p(rpc_in)+RPC_HDR_REQ_LEN, data_len)) {
2147
DEBUG(3,("failed to decode PDU\n"));
2152
* Return the current pointer to the data offset.
2155
if(!prs_set_offset(rpc_in, save_offset)) {
2156
DEBUG(0,("failed to set offset back to %u\n",
2157
(unsigned int)save_offset ));
2161
/* The sequence number gets incremented on both send and receive. */
2162
p->auth.a_u.schannel_auth->seq_num++;
2165
* Remember the padding length. We must remove it from the real data
2166
* stream once the sign/seal is done.
2169
*p_ss_padding_len = auth_info.auth_pad_len;
2174
/****************************************************************************
2175
Find the set of RPC functions associated with this context_id
2176
****************************************************************************/
2178
static PIPE_RPC_FNS* find_pipe_fns_by_context( PIPE_RPC_FNS *list, uint32 context_id )
2180
PIPE_RPC_FNS *fns = NULL;
2181
PIPE_RPC_FNS *tmp = NULL;
2184
DEBUG(0,("find_pipe_fns_by_context: ERROR! No context list for pipe!\n"));
2188
for (tmp=list; tmp; tmp=tmp->next ) {
2189
if ( tmp->context_id == context_id )
2198
/****************************************************************************
2200
****************************************************************************/
2202
void free_pipe_rpc_context( PIPE_RPC_FNS *list )
2204
PIPE_RPC_FNS *tmp = list;
2216
/****************************************************************************
2217
Find the correct RPC function to call for this request.
2218
If the pipe is authenticated then become the correct UNIX user
2219
before doing the call.
2220
****************************************************************************/
2222
BOOL api_pipe_request(pipes_struct *p)
2225
BOOL changed_user = False;
2226
PIPE_RPC_FNS *pipe_fns;
2228
if (p->pipe_bound) {
2229
if(!become_authenticated_pipe_user(p)) {
2230
prs_mem_free(&p->out_data.rdata);
2233
changed_user = True;
2236
DEBUG(5, ("Requested \\PIPE\\%s\n", p->name));
2238
/* get the set of RPC functions for this context */
2240
pipe_fns = find_pipe_fns_by_context(p->contexts, p->hdr_req.context_id);
2243
set_current_rpc_talloc(p->mem_ctx);
2244
ret = api_rpcTNP(p, p->name, pipe_fns->cmds, pipe_fns->n_cmds);
2245
set_current_rpc_talloc(NULL);
2248
DEBUG(0,("api_pipe_request: No rpc function table associated with context [%d] on pipe [%s]\n",
2249
p->hdr_req.context_id, p->name));
2253
unbecome_authenticated_pipe_user();
2259
/*******************************************************************
2260
Calls the underlying RPC function for a named pipe.
2261
********************************************************************/
2263
BOOL api_rpcTNP(pipes_struct *p, const char *rpc_name,
2264
const struct api_struct *api_rpc_cmds, int n_cmds)
2268
uint32 offset1, offset2;
2270
/* interpret the command */
2271
DEBUG(4,("api_rpcTNP: %s op 0x%x - ", rpc_name, p->hdr_req.opnum));
2273
slprintf(name, sizeof(name)-1, "in_%s", rpc_name);
2274
prs_dump(name, p->hdr_req.opnum, &p->in_data.data);
2276
for (fn_num = 0; fn_num < n_cmds; fn_num++) {
2277
if (api_rpc_cmds[fn_num].opnum == p->hdr_req.opnum && api_rpc_cmds[fn_num].fn != NULL) {
2278
DEBUG(3,("api_rpcTNP: rpc command: %s\n", api_rpc_cmds[fn_num].name));
2283
if (fn_num == n_cmds) {
2285
* For an unknown RPC just return a fault PDU but
2286
* return True to allow RPC's on the pipe to continue
2287
* and not put the pipe into fault state. JRA.
2289
DEBUG(4, ("unknown\n"));
2290
setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
2294
offset1 = prs_offset(&p->out_data.rdata);
2296
DEBUG(6, ("api_rpc_cmds[%d].fn == %p\n",
2297
fn_num, api_rpc_cmds[fn_num].fn));
2298
/* do the actual command */
2299
if(!api_rpc_cmds[fn_num].fn(p)) {
2300
DEBUG(0,("api_rpcTNP: %s: %s failed.\n", rpc_name, api_rpc_cmds[fn_num].name));
2301
prs_mem_free(&p->out_data.rdata);
2305
if (p->bad_handle_fault_state) {
2306
DEBUG(4,("api_rpcTNP: bad handle fault return.\n"));
2307
p->bad_handle_fault_state = False;
2308
setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_CONTEXT_MISMATCH));
2312
slprintf(name, sizeof(name)-1, "out_%s", rpc_name);
2313
offset2 = prs_offset(&p->out_data.rdata);
2314
prs_set_offset(&p->out_data.rdata, offset1);
2315
prs_dump(name, p->hdr_req.opnum, &p->out_data.rdata);
2316
prs_set_offset(&p->out_data.rdata, offset2);
2318
DEBUG(5,("api_rpcTNP: called %s successfully\n", rpc_name));
2320
/* Check for buffer underflow in rpc parsing */
2322
if ((DEBUGLEVEL >= 10) &&
2323
(prs_offset(&p->in_data.data) != prs_data_size(&p->in_data.data))) {
2324
size_t data_len = prs_data_size(&p->in_data.data) - prs_offset(&p->in_data.data);
2325
char *data = SMB_MALLOC(data_len);
2327
DEBUG(10, ("api_rpcTNP: rpc input buffer underflow (parse error?)\n"));
2329
prs_uint8s(False, "", &p->in_data.data, 0, (unsigned char *)data, (uint32)data_len);
2338
/*******************************************************************
2339
*******************************************************************/
2341
void get_pipe_fns( int idx, struct api_struct **fns, int *n_fns )
2343
struct api_struct *cmds = NULL;
2348
lsa_get_pipe_fns( &cmds, &n_cmds );
2351
lsa_ds_get_pipe_fns( &cmds, &n_cmds );
2354
samr_get_pipe_fns( &cmds, &n_cmds );
2357
netlog_get_pipe_fns( &cmds, &n_cmds );
2360
srvsvc_get_pipe_fns( &cmds, &n_cmds );
2363
wkssvc_get_pipe_fns( &cmds, &n_cmds );
2366
reg_get_pipe_fns( &cmds, &n_cmds );
2369
spoolss_get_pipe_fns( &cmds, &n_cmds );
2372
netdfs_get_pipe_fns( &cmds, &n_cmds );
2375
svcctl_get_pipe_fns( &cmds, &n_cmds );
2378
eventlog_get_pipe_fns( &cmds, &n_cmds );
2381
unixinfo_get_pipe_fns( &cmds, &n_cmds );
2384
ntsvcs_get_pipe_fns( &cmds, &n_cmds );
2388
echo_get_pipe_fns( &cmds, &n_cmds );
2392
DEBUG(0,("get_pipe_fns: Unknown pipe index! [%d]\n", idx));
added
removed
source/rpc_server/srv_pipe.c
