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* small formatting fixes
[Samba.git] / source / rpc_client / cli_pipe.c
blobeae6be512825ef37c7d675fdcfd81511e0343f58
1 /*
2 * Unix SMB/CIFS implementation.
3 * RPC Pipe client / server routines
4 * Copyright (C) Andrew Tridgell 1992-1998,
5 * Copyright (C) Luke Kenneth Casson Leighton 1996-1998,
6 * Copyright (C) Paul Ashton 1998.
7 * Copyright (C) Jeremy Allison 1999.
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 */
23
24 #include "includes.h"
25
26 #undef DBGC_CLASS
27 #define DBGC_CLASS DBGC_RPC_CLI
28
29 extern struct pipe_id_info pipe_names[];
30 extern fstring global_myworkgroup;
31 extern pstring global_myname;
32
33 /********************************************************************
34 Rpc pipe call id.
35 ********************************************************************/
36
37 static uint32 get_rpc_call_id(void)
38 {
39 static uint32 call_id = 0;
40 return ++call_id;
41 }
42
43 /*******************************************************************
44 Use SMBreadX to get rest of one fragment's worth of rpc data.
45 ********************************************************************/
46
47 static BOOL rpc_read(struct cli_state *cli, prs_struct *rdata, uint32 data_to_read, uint32 *rdata_offset)
48 {
49 size_t size = (size_t)cli->max_recv_frag;
50 int stream_offset = 0;
51 int num_read;
52 char *pdata;
53 int extra_data_size = ((int)*rdata_offset) + ((int)data_to_read) - (int)prs_data_size(rdata);
54
55 DEBUG(5,("rpc_read: data_to_read: %u rdata offset: %u extra_data_size: %d\n",
56 (int)data_to_read, (unsigned int)*rdata_offset, extra_data_size));
57
58 /*
59 * Grow the buffer if needed to accommodate the data to be read.
60 */
61
62 if (extra_data_size > 0) {
63 if(!prs_force_grow(rdata, (uint32)extra_data_size)) {
64 DEBUG(0,("rpc_read: Failed to grow parse struct by %d bytes.\n", extra_data_size ));
65 return False;
66 }
67 DEBUG(5,("rpc_read: grew buffer by %d bytes to %u\n", extra_data_size, prs_data_size(rdata) ));
68 }
69
70 pdata = prs_data_p(rdata) + *rdata_offset;
71
72 do /* read data using SMBreadX */
73 {
74 uint32 ecode;
75 uint8 eclass;
76
77 if (size > (size_t)data_to_read)
78 size = (size_t)data_to_read;
79
80 num_read = (int)cli_read(cli, cli->nt_pipe_fnum, pdata, (off_t)stream_offset, size);
81
82 DEBUG(5,("rpc_read: num_read = %d, read offset: %d, to read: %d\n",
83 num_read, stream_offset, data_to_read));
84
85 if (cli_is_dos_error(cli)) {
86 cli_dos_error(cli, &eclass, &ecode);
87 if (eclass != ERRDOS && ecode != ERRmoredata) {
88 DEBUG(0,("rpc_read: Error %d/%u in cli_read\n",
89 eclass, (unsigned int)ecode));
90 return False;
91 }
92 }
93
94 data_to_read -= num_read;
95 stream_offset += num_read;
96 pdata += num_read;
97
98 } while (num_read > 0 && data_to_read > 0);
99 /* && err == (0x80000000 | STATUS_BUFFER_OVERFLOW)); */
100
101 /*
102 * Update the current offset into rdata by the amount read.
103 */
104 *rdata_offset += stream_offset;
105
106 return True;
107 }
108
109 /****************************************************************************
110 Checks the header. This will set the endian bit in the rdata prs_struct. JRA.
111 ****************************************************************************/
112
113 static BOOL rpc_check_hdr(prs_struct *rdata, RPC_HDR *rhdr,
114 BOOL *first, BOOL *last, uint32 *len)
115 {
116 DEBUG(5,("rpc_check_hdr: rdata->data_size = %u\n", (uint32)prs_data_size(rdata) ));
117
118 /* Next call sets endian bit. */
119
120 if(!smb_io_rpc_hdr("rpc_hdr ", rhdr, rdata, 0)) {
121 DEBUG(0,("rpc_check_hdr: Failed to unmarshall RPC_HDR.\n"));
122 return False;
123 }
124
125 if (prs_offset(rdata) != RPC_HEADER_LEN) {
126 DEBUG(0,("rpc_check_hdr: offset was %x, should be %x.\n", prs_offset(rdata), RPC_HEADER_LEN));
127 return False;
128 }
129
130 (*first) = ((rhdr->flags & RPC_FLG_FIRST) != 0);
131 (*last) = ((rhdr->flags & RPC_FLG_LAST ) != 0);
132 (*len) = (uint32)rhdr->frag_len - prs_data_size(rdata);
133
134 return (rhdr->pkt_type != RPC_FAULT);
135 }
136
137 static void NTLMSSPcalc_ap( struct cli_state *cli, unsigned char *data, uint32 len)
138 {
139 unsigned char *hash = cli->ntlmssp_hash;
140 unsigned char index_i = hash[256];
141 unsigned char index_j = hash[257];
142 int ind;
143
144 for( ind = 0; ind < len; ind++) {
145 unsigned char tc;
146 unsigned char t;
147
148 index_i++;
149 index_j += hash[index_i];
150
151 tc = hash[index_i];
152 hash[index_i] = hash[index_j];
153 hash[index_j] = tc;
154
155 t = hash[index_i] + hash[index_j];
156 data[ind] = data[ind] ^ hash[t];
157 }
158
159 hash[256] = index_i;
160 hash[257] = index_j;
161 }
162
163 /****************************************************************************
164 Verify data on an rpc pipe.
165 The VERIFY & SEAL code is only executed on packets that look like this :
166
167 Request/Response PDU's look like the following...
168
169 |<------------------PDU len----------------------------------------------->|
170 |<-HDR_LEN-->|<--REQ LEN------>|.............|<-AUTH_HDRLEN->|<-AUTH_LEN-->|
171
172 +------------+-----------------+-------------+---------------+-------------+
173 | RPC HEADER | REQ/RESP HEADER | DATA ...... | AUTH_HDR | AUTH DATA |
174 +------------+-----------------+-------------+---------------+-------------+
175
176 Never on bind requests/responses.
177 ****************************************************************************/
178
179 static BOOL rpc_auth_pipe(struct cli_state *cli, prs_struct *rdata, int len, int auth_len)
180 {
181 /*
182 * The following is that length of the data we must sign or seal.
183 * This doesn't include the RPC headers or the auth_len or the RPC_HDR_AUTH_LEN
184 * preceeding the auth_data.
185 */
186
187 int data_len = len - RPC_HEADER_LEN - RPC_HDR_RESP_LEN - RPC_HDR_AUTH_LEN - auth_len;
188
189 /*
190 * The start of the data to sign/seal is just after the RPC headers.
191 */
192 char *reply_data = prs_data_p(rdata) + RPC_HEADER_LEN + RPC_HDR_REQ_LEN;
193
194 BOOL auth_verify = ((cli->ntlmssp_srv_flgs & NTLMSSP_NEGOTIATE_SIGN) != 0);
195 BOOL auth_seal = ((cli->ntlmssp_srv_flgs & NTLMSSP_NEGOTIATE_SEAL) != 0);
196
197 DEBUG(5,("rpc_auth_pipe: len: %d auth_len: %d verify %s seal %s\n",
198 len, auth_len, BOOLSTR(auth_verify), BOOLSTR(auth_seal)));
199
200 /*
201 * Unseal any sealed data in the PDU, not including the
202 * 8 byte auth_header or the auth_data.
203 */
204
205 if (auth_seal) {
206 DEBUG(10,("rpc_auth_pipe: unseal\n"));
207 dump_data(100, reply_data, data_len);
208 NTLMSSPcalc_ap(cli, (uchar*)reply_data, data_len);
209 dump_data(100, reply_data, data_len);
210 }
211
212 if (auth_verify || auth_seal) {
213 RPC_HDR_AUTH rhdr_auth;
214 prs_struct auth_req;
215 char data[RPC_HDR_AUTH_LEN];
216 /*
217 * We set dp to be the end of the packet, minus the auth_len
218 * and the length of the header that preceeds the auth_data.
219 */
220 char *dp = prs_data_p(rdata) + len - auth_len - RPC_HDR_AUTH_LEN;
221
222 if(dp - prs_data_p(rdata) > prs_data_size(rdata)) {
223 DEBUG(0,("rpc_auth_pipe: auth data > data size !\n"));
224 return False;
225 }
226
227 memcpy(data, dp, sizeof(data));
228
229 prs_init(&auth_req , 0, cli->mem_ctx, UNMARSHALL);
230
231 /* The endianness must be preserved... JRA. */
232
233 prs_set_endian_data(&auth_req, rdata->bigendian_data);
234
235 prs_give_memory(&auth_req, data, RPC_HDR_AUTH_LEN, False);
236
237 /*
238 * Unmarshall the 8 byte auth_header that comes before the
239 * auth data.
240 */
241
242 if(!smb_io_rpc_hdr_auth("hdr_auth", &rhdr_auth, &auth_req, 0)) {
243 DEBUG(0,("rpc_auth_pipe: unmarshalling RPC_HDR_AUTH failed.\n"));
244 return False;
245 }
246
247 if (!rpc_hdr_auth_chk(&rhdr_auth)) {
248 DEBUG(0,("rpc_auth_pipe: rpc_hdr_auth_chk failed.\n"));
249 return False;
250 }
251 }
252
253 /*
254 * Now unseal and check the auth verifier in the auth_data at
255 * then end of the packet. The 4 bytes skipped in the unseal
256 * seem to be a buffer pointer preceeding the sealed data.
257 */
258
259 if (auth_verify) {
260 RPC_AUTH_NTLMSSP_CHK chk;
261 uint32 crc32;
262 prs_struct auth_verf;
263 char data[RPC_AUTH_NTLMSSP_CHK_LEN];
264 char *dp = prs_data_p(rdata) + len - auth_len;
265
266 if(dp - prs_data_p(rdata) > prs_data_size(rdata)) {
267 DEBUG(0,("rpc_auth_pipe: auth data > data size !\n"));
268 return False;
269 }
270
271 DEBUG(10,("rpc_auth_pipe: verify\n"));
272 dump_data(100, dp, auth_len);
273 NTLMSSPcalc_ap(cli, (uchar*)(dp+4), auth_len - 4);
274
275 memcpy(data, dp, RPC_AUTH_NTLMSSP_CHK_LEN);
276 dump_data(100, data, auth_len);
277
278 prs_init(&auth_verf, 0, cli->mem_ctx, UNMARSHALL);
279
280 /* The endinness must be preserved. JRA. */
281 prs_set_endian_data( &auth_verf, rdata->bigendian_data);
282
283 prs_give_memory(&auth_verf, data, RPC_AUTH_NTLMSSP_CHK_LEN, False);
284
285 if(!smb_io_rpc_auth_ntlmssp_chk("auth_sign", &chk, &auth_verf, 0)) {
286 DEBUG(0,("rpc_auth_pipe: unmarshalling RPC_AUTH_NTLMSSP_CHK failed.\n"));
287 return False;
288 }
289
290 crc32 = crc32_calc_buffer(reply_data, data_len);
291
292 if (!rpc_auth_ntlmssp_chk(&chk, crc32 , cli->ntlmssp_seq_num)) {
293 DEBUG(0,("rpc_auth_pipe: rpc_auth_ntlmssp_chk failed.\n"));
294 return False;
295 }
296 cli->ntlmssp_seq_num++;
297 }
298 return True;
299 }
300
301
302 /****************************************************************************
303 Send data on an rpc pipe, which *must* be in one fragment.
304 receive response data from an rpc pipe, which may be large...
305
306 Read the first fragment: unfortunately have to use SMBtrans for the first
307 bit, then SMBreadX for subsequent bits.
308
309 If first fragment received also wasn't the last fragment, continue
310 getting fragments until we _do_ receive the last fragment.
311
312 Request/Response PDU's look like the following...
313
314 |<------------------PDU len----------------------------------------------->|
315 |<-HDR_LEN-->|<--REQ LEN------>|.............|<-AUTH_HDRLEN->|<-AUTH_LEN-->|
316
317 +------------+-----------------+-------------+---------------+-------------+
318 | RPC HEADER | REQ/RESP HEADER | DATA ...... | AUTH_HDR | AUTH DATA |
319 +------------+-----------------+-------------+---------------+-------------+
320
321 Where the presence of the AUTH_HDR and AUTH are dependent on the
322 signing & sealing being neogitated.
323
324 ****************************************************************************/
325
326 static BOOL rpc_api_pipe(struct cli_state *cli, uint16 cmd, prs_struct *data, prs_struct *rdata)
327 {
328 uint32 len;
329 char *rparam = NULL;
330 uint32 rparam_len = 0;
331 uint16 setup[2];
332 BOOL first = True;
333 BOOL last = True;
334 RPC_HDR rhdr;
335 char *pdata = data ? prs_data_p(data) : NULL;
336 uint32 data_len = data ? prs_offset(data) : 0;
337 char *prdata = NULL;
338 uint32 rdata_len = 0;
339 uint32 current_offset = 0;
340
341 /* Create setup parameters - must be in native byte order. */
342
343 setup[0] = cmd;
344 setup[1] = cli->nt_pipe_fnum; /* Pipe file handle. */
345
346 DEBUG(5,("rpc_api_pipe: cmd:%x fnum:%x\n", (int)cmd,
347 (int)cli->nt_pipe_fnum));
348
349 /* Send the RPC request and receive a response. For short RPC
350 calls (about 1024 bytes or so) the RPC request and response
351 appears in a SMBtrans request and response. Larger RPC
352 responses are received further on. */
353
354 if (!cli_api_pipe(cli, "\\PIPE\\",
355 setup, 2, 0, /* Setup, length, max */
356 NULL, 0, 0, /* Params, length, max */
357 pdata, data_len, data_len, /* data, length, max */
358 &rparam, &rparam_len, /* return params, len */
359 &prdata, &rdata_len)) /* return data, len */
360 {
361 DEBUG(0, ("cli_pipe: return critical error. Error was %s\n", cli_errstr(cli)));
362 return False;
363 }
364
365 /* Throw away returned params - we know we won't use them. */
366
367 SAFE_FREE(rparam);
368
369 if (prdata == NULL) {
370 DEBUG(0,("rpc_api_pipe: cmd %x on pipe %x failed to return data.\n",
371 (int)cmd, (int)cli->nt_pipe_fnum));
372 return False;
373 }
374
375 /*
376 * Give this memory as dynamically allocated to the return parse
377 * struct.
378 */
379
380 prs_give_memory(rdata, prdata, rdata_len, True);
381 current_offset = rdata_len;
382
383 /* This next call sets the endian bit correctly in rdata. */
384
385 if (!rpc_check_hdr(rdata, &rhdr, &first, &last, &len)) {
386 prs_mem_free(rdata);
387 return False;
388 }
389
390 if (rhdr.pkt_type == RPC_BINDACK) {
391 if (!last && !first) {
392 DEBUG(5,("rpc_api_pipe: bug in server (AS/U?), setting fragment first/last ON.\n"));
393 first = True;
394 last = True;
395 }
396 }
397
398 if (rhdr.pkt_type == RPC_RESPONSE) {
399 RPC_HDR_RESP rhdr_resp;
400 if(!smb_io_rpc_hdr_resp("rpc_hdr_resp", &rhdr_resp, rdata, 0)) {
401 DEBUG(5,("rpc_api_pipe: failed to unmarshal RPC_HDR_RESP.\n"));
402 prs_mem_free(rdata);
403 return False;
404 }
405 }
406
407 DEBUG(5,("rpc_api_pipe: len left: %u smbtrans read: %u\n",
408 (unsigned int)len, (unsigned int)rdata_len ));
409
410 /* check if data to be sent back was too large for one SMBtrans */
411 /* err status is only informational: the _real_ check is on the
412 length */
413
414 if (len > 0) {
415 /* || err == (0x80000000 | STATUS_BUFFER_OVERFLOW)) */
416
417 /* Read the remaining part of the first response fragment */
418
419 if (!rpc_read(cli, rdata, len, &current_offset)) {
420 prs_mem_free(rdata);
421 return False;
422 }
423 }
424
425 /*
426 * Now we have a complete PDU, check the auth struct if any was sent.
427 */
428
429 if (rhdr.auth_len != 0) {
430 if(!rpc_auth_pipe(cli, rdata, rhdr.frag_len, rhdr.auth_len))
431 return False;
432 /*
433 * Drop the auth footers from the current offset.
434 * We need this if there are more fragments.
435 * The auth footers consist of the auth_data and the
436 * preceeding 8 byte auth_header.
437 */
438 current_offset -= (rhdr.auth_len + RPC_HDR_AUTH_LEN);
439 }
440
441 /*
442 * Only one rpc fragment, and it has been read.
443 */
444
445 if (first && last) {
446 DEBUG(6,("rpc_api_pipe: fragment first and last both set\n"));
447 return True;
448 }
449
450 /*
451 * Read more fragments using SMBreadX until we get one with the
452 * last bit set.
453 */
454
455 while (!last) {
456 RPC_HDR_RESP rhdr_resp;
457 int num_read;
458 char hdr_data[RPC_HEADER_LEN+RPC_HDR_RESP_LEN];
459 prs_struct hps;
460 uint8 eclass;
461 uint32 ecode;
462
463 /*
464 * First read the header of the next PDU.
465 */
466
467 prs_init(&hps, 0, cli->mem_ctx, UNMARSHALL);
468 prs_give_memory(&hps, hdr_data, sizeof(hdr_data), False);
469
470 num_read = cli_read(cli, cli->nt_pipe_fnum, hdr_data, 0, RPC_HEADER_LEN+RPC_HDR_RESP_LEN);
471 if (cli_is_dos_error(cli)) {
472 cli_dos_error(cli, &eclass, &ecode);
473 if (eclass != ERRDOS && ecode != ERRmoredata) {
474 DEBUG(0,("rpc_api_pipe: cli_read error : %d/%d\n", eclass, ecode));
475 return False;
476 }
477 }
478
479 DEBUG(5,("rpc_api_pipe: read header (size:%d)\n", num_read));
480
481 if (num_read != RPC_HEADER_LEN+RPC_HDR_RESP_LEN) {
482 DEBUG(0,("rpc_api_pipe: Error : requested %d bytes, got %d.\n",
483 RPC_HEADER_LEN+RPC_HDR_RESP_LEN, num_read ));
484 return False;
485 }
486
487 /* This call sets the endianness in hps. */
488
489 if (!rpc_check_hdr(&hps, &rhdr, &first, &last, &len))
490 return False;
491
492 /* Ensure the endianness in rdata is set correctly - must be same as hps. */
493
494 if (hps.bigendian_data != rdata->bigendian_data) {
495 DEBUG(0,("rpc_api_pipe: Error : Endianness changed from %s to %s\n",
496 rdata->bigendian_data ? "big" : "little",
497 hps.bigendian_data ? "big" : "little" ));
498 return False;
499 }
500
501 if(!smb_io_rpc_hdr_resp("rpc_hdr_resp", &rhdr_resp, &hps, 0)) {
502 DEBUG(0,("rpc_api_pipe: Error in unmarshalling RPC_HDR_RESP.\n"));
503 return False;
504 }
505
506 if (first) {
507 DEBUG(0,("rpc_api_pipe: secondary PDU rpc header has 'first' set !\n"));
508 return False;
509 }
510
511 /*
512 * Now read the rest of the PDU.
513 */
514
515 if (!rpc_read(cli, rdata, len, &current_offset))
516 return False;
517
518 /*
519 * Verify any authentication footer.
520 */
521
522 if (rhdr.auth_len != 0 ) {
523 if(!rpc_auth_pipe(cli, rdata, rhdr.frag_len, rhdr.auth_len))
524 return False;
525 /*
526 * Drop the auth footers from the current offset.
527 * The auth footers consist of the auth_data and the
528 * preceeding 8 byte auth_header.
529 * We need this if there are more fragments.
530 */
531 current_offset -= (rhdr.auth_len + RPC_HDR_AUTH_LEN);
532 }
533 }
534
535 return True;
536 }
537
538 /*******************************************************************
539 creates a DCE/RPC bind request
540
541 - initialises the parse structure.
542 - dynamically allocates the header data structure
543 - caller is expected to free the header data structure once used.
544
545 ********************************************************************/
546
547 static BOOL create_rpc_bind_req(prs_struct *rpc_out, BOOL do_auth, uint32 rpc_call_id,
548 RPC_IFACE *abstract, RPC_IFACE *transfer,
549 char *my_name, char *domain, uint32 neg_flags)
550 {
551 RPC_HDR hdr;
552 RPC_HDR_RB hdr_rb;
553 char buffer[4096];
554 prs_struct auth_info;
555 int auth_len = 0;
556
557 prs_init(&auth_info, 0, prs_get_mem_context(rpc_out), MARSHALL);
558
559 if (do_auth) {
560 RPC_HDR_AUTH hdr_auth;
561 RPC_AUTH_VERIFIER auth_verifier;
562 RPC_AUTH_NTLMSSP_NEG ntlmssp_neg;
563
564 /*
565 * Create the auth structs we will marshall.
566 */
567
568 init_rpc_hdr_auth(&hdr_auth, NTLMSSP_AUTH_TYPE, NTLMSSP_AUTH_LEVEL, 0x00, 1);
569 init_rpc_auth_verifier(&auth_verifier, "NTLMSSP", NTLMSSP_NEGOTIATE);
570 init_rpc_auth_ntlmssp_neg(&ntlmssp_neg, neg_flags, my_name, domain);
571
572 /*
573 * Use the 4k buffer to store the auth info.
574 */
575
576 prs_give_memory( &auth_info, buffer, sizeof(buffer), False);
577
578 /*
579 * Now marshall the data into the temporary parse_struct.
580 */
581
582 if(!smb_io_rpc_hdr_auth("hdr_auth", &hdr_auth, &auth_info, 0)) {
583 DEBUG(0,("create_rpc_bind_req: failed to marshall RPC_HDR_AUTH.\n"));
584 return False;
585 }
586
587 if(!smb_io_rpc_auth_verifier("auth_verifier", &auth_verifier, &auth_info, 0)) {
588 DEBUG(0,("create_rpc_bind_req: failed to marshall RPC_AUTH_VERIFIER.\n"));
589 return False;
590 }
591
592 if(!smb_io_rpc_auth_ntlmssp_neg("ntlmssp_neg", &ntlmssp_neg, &auth_info, 0)) {
593 DEBUG(0,("create_rpc_bind_req: failed to marshall RPC_AUTH_NTLMSSP_NEG.\n"));
594 return False;
595 }
596
597 /* Auth len in the rpc header doesn't include auth_header. */
598 auth_len = prs_offset(&auth_info) - RPC_HDR_AUTH_LEN;
599 }
600
601 /* create the request RPC_HDR */
602 init_rpc_hdr(&hdr, RPC_BIND, 0x0, rpc_call_id,
603 RPC_HEADER_LEN + RPC_HDR_RB_LEN + prs_offset(&auth_info),
604 auth_len);
605
606 if(!smb_io_rpc_hdr("hdr" , &hdr, rpc_out, 0)) {
607 DEBUG(0,("create_rpc_bind_req: failed to marshall RPC_HDR.\n"));
608 return False;
609 }
610
611 /* create the bind request RPC_HDR_RB */
612 init_rpc_hdr_rb(&hdr_rb, MAX_PDU_FRAG_LEN, MAX_PDU_FRAG_LEN, 0x0,
613 0x1, 0x0, 0x1, abstract, transfer);
614
615 /* Marshall the bind request data */
616 if(!smb_io_rpc_hdr_rb("", &hdr_rb, rpc_out, 0)) {
617 DEBUG(0,("create_rpc_bind_req: failed to marshall RPC_HDR_RB.\n"));
618 return False;
619 }
620
621 /*
622 * Grow the outgoing buffer to store any auth info.
623 */
624
625 if(hdr.auth_len != 0) {
626 if(!prs_append_prs_data( rpc_out, &auth_info)) {
627 DEBUG(0,("create_rpc_bind_req: failed to grow parse struct to add auth.\n"));
628 return False;
629 }
630 }
631
632 return True;
633 }
634
635 /*******************************************************************
636 Creates a DCE/RPC bind authentication response.
637 This is the packet that is sent back to the server once we
638 have received a BIND-ACK, to finish the third leg of
639 the authentication handshake.
640 ********************************************************************/
641
642 static BOOL create_rpc_bind_resp(struct pwd_info *pwd,
643 char *domain, char *user_name, char *my_name,
644 uint32 ntlmssp_cli_flgs,
645 uint32 rpc_call_id,
646 prs_struct *rpc_out)
647 {
648 unsigned char lm_owf[24];
649 unsigned char nt_owf[24];
650 RPC_HDR hdr;
651 RPC_HDR_AUTHA hdr_autha;
652 RPC_AUTH_VERIFIER auth_verifier;
653 RPC_AUTH_NTLMSSP_RESP ntlmssp_resp;
654 char buffer[4096];
655 prs_struct auth_info;
656
657 /*
658 * Marshall the variable length data into a temporary parse
659 * struct, pointing into a 4k local buffer.
660 */
661 prs_init(&auth_info, 0, prs_get_mem_context(rpc_out), MARSHALL);
662
663 /*
664 * Use the 4k buffer to store the auth info.
665 */
666
667 prs_give_memory( &auth_info, buffer, sizeof(buffer), False);
668
669 /*
670 * Create the variable length auth_data.
671 */
672
673 init_rpc_auth_verifier(&auth_verifier, "NTLMSSP", NTLMSSP_AUTH);
674
675 pwd_get_lm_nt_owf(pwd, lm_owf, nt_owf);
676
677 init_rpc_auth_ntlmssp_resp(&ntlmssp_resp,
678 lm_owf, nt_owf,
679 domain, user_name, my_name,
680 ntlmssp_cli_flgs);
681
682 /*
683 * Marshall the variable length auth_data into a temp parse_struct.
684 */
685
686 if(!smb_io_rpc_auth_verifier("auth_verifier", &auth_verifier, &auth_info, 0)) {
687 DEBUG(0,("create_rpc_bind_resp: failed to marshall RPC_AUTH_VERIFIER.\n"));
688 return False;
689 }
690
691 if(!smb_io_rpc_auth_ntlmssp_resp("ntlmssp_resp", &ntlmssp_resp, &auth_info, 0)) {
692 DEBUG(0,("create_rpc_bind_resp: failed to marshall RPC_AUTH_NTLMSSP_RESP.\n"));
693 return False;
694 }
695
696 /* Create the request RPC_HDR */
697 init_rpc_hdr(&hdr, RPC_BINDRESP, 0x0, rpc_call_id,
698 RPC_HEADER_LEN + RPC_HDR_AUTHA_LEN + prs_offset(&auth_info),
699 prs_offset(&auth_info) );
700
701 /* Marshall it. */
702 if(!smb_io_rpc_hdr("hdr", &hdr, rpc_out, 0)) {
703 DEBUG(0,("create_rpc_bind_resp: failed to marshall RPC_HDR.\n"));
704 return False;
705 }
706
707 /* Create the request RPC_HDR_AUTHA */
708 init_rpc_hdr_autha(&hdr_autha, MAX_PDU_FRAG_LEN, MAX_PDU_FRAG_LEN,
709 NTLMSSP_AUTH_TYPE, NTLMSSP_AUTH_LEVEL, 0x00);
710
711 if(!smb_io_rpc_hdr_autha("hdr_autha", &hdr_autha, rpc_out, 0)) {
712 DEBUG(0,("create_rpc_bind_resp: failed to marshall RPC_HDR_AUTHA.\n"));
713 return False;
714 }
715
716 /*
717 * Append the auth data to the outgoing buffer.
718 */
719
720 if(!prs_append_prs_data(rpc_out, &auth_info)) {
721 DEBUG(0,("create_rpc_bind_req: failed to grow parse struct to add auth.\n"));
722 return False;
723 }
724
725 return True;
726 }
727
728
729 /*******************************************************************
730 Creates a DCE/RPC request.
731 ********************************************************************/
732
733 static BOOL create_rpc_request(prs_struct *rpc_out, uint8 op_num, int data_len, int auth_len)
734 {
735 uint32 alloc_hint;
736 RPC_HDR hdr;
737 RPC_HDR_REQ hdr_req;
738
739 DEBUG(5,("create_rpc_request: opnum: 0x%x data_len: 0x%x\n", op_num, data_len));
740
741 /* create the rpc header RPC_HDR */
742 init_rpc_hdr(&hdr, RPC_REQUEST, RPC_FLG_FIRST | RPC_FLG_LAST,
743 get_rpc_call_id(), data_len, auth_len);
744
745 /*
746 * The alloc hint should be the amount of data, not including
747 * RPC headers & footers.
748 */
749
750 if (auth_len != 0)
751 alloc_hint = data_len - RPC_HEADER_LEN - RPC_HDR_AUTH_LEN - auth_len;
752 else
753 alloc_hint = data_len - RPC_HEADER_LEN;
754
755 DEBUG(10,("create_rpc_request: data_len: %x auth_len: %x alloc_hint: %x\n",
756 data_len, auth_len, alloc_hint));
757
758 /* Create the rpc request RPC_HDR_REQ */
759 init_rpc_hdr_req(&hdr_req, alloc_hint, op_num);
760
761 /* stream-time... */
762 if(!smb_io_rpc_hdr("hdr ", &hdr, rpc_out, 0))
763 return False;
764
765 if(!smb_io_rpc_hdr_req("hdr_req", &hdr_req, rpc_out, 0))
766 return False;
767
768 if (prs_offset(rpc_out) != RPC_HEADER_LEN + RPC_HDR_REQ_LEN)
769 return False;
770
771 return True;
772 }
773
774
775 /**
776 * Send a request on an RPC pipe and get a response.
777 *
778 * @param data NDR contents of the request to be sent.
779 * @param rdata Unparsed NDR response data.
780 **/
781
782 BOOL rpc_api_pipe_req(struct cli_state *cli, uint8 op_num,
783 prs_struct *data, prs_struct *rdata)
784 {
785 prs_struct outgoing_packet;
786 uint32 data_len;
787 uint32 auth_len;
788 BOOL ret;
789 BOOL auth_verify;
790 BOOL auth_seal;
791 uint32 crc32 = 0;
792 char *pdata_out = NULL;
793 fstring dump_name;
794
795 auth_verify = ((cli->ntlmssp_srv_flgs & NTLMSSP_NEGOTIATE_SIGN) != 0);
796 auth_seal = ((cli->ntlmssp_srv_flgs & NTLMSSP_NEGOTIATE_SEAL) != 0);
797
798 /* Optionally capture for use in debugging */
799 slprintf(dump_name, sizeof(dump_name) - 1, "call_%s",
800 cli_pipe_get_name(cli));
801 prs_dump_before(dump_name, op_num, data);
802
803 /*
804 * The auth_len doesn't include the RPC_HDR_AUTH_LEN.
805 */
806
807 auth_len = (auth_verify ? RPC_AUTH_NTLMSSP_CHK_LEN : 0);
808
809 /*
810 * PDU len is header, plus request header, plus data, plus
811 * auth_header_len (if present), plus auth_len (if present).
812 * NB. The auth stuff should be aligned on an 8 byte boundary
813 * to be totally DCE/RPC spec complient. For now we cheat and
814 * hope that the data structs defined are a multiple of 8 bytes.
815 */
816
817 if((prs_offset(data) % 8) != 0) {
818 DEBUG(5,("rpc_api_pipe_req: Outgoing data not a multiple of 8 bytes....\n"));
819 }
820
821 data_len = RPC_HEADER_LEN + RPC_HDR_REQ_LEN + prs_offset(data) +
822 (auth_verify ? RPC_HDR_AUTH_LEN : 0) + auth_len;
823
824 /*
825 * Malloc a parse struct to hold it (and enough for alignments).
826 */
827
828 if(!prs_init(&outgoing_packet, data_len + 8, cli->mem_ctx, MARSHALL)) {
829 DEBUG(0,("rpc_api_pipe_req: Failed to malloc %u bytes.\n", (unsigned int)data_len ));
830 return False;
831 }
832
833 pdata_out = prs_data_p(&outgoing_packet);
834
835 /*
836 * Write out the RPC header and the request header.
837 */
838
839 if(!create_rpc_request(&outgoing_packet, op_num, data_len, auth_len)) {
840 DEBUG(0,("rpc_api_pipe_req: Failed to create RPC request.\n"));
841 prs_mem_free(&outgoing_packet);
842 return False;
843 }
844
845 /*
846 * Seal the outgoing data if requested.
847 */
848
849 if (auth_seal) {
850 crc32 = crc32_calc_buffer(prs_data_p(data), prs_offset(data));
851 NTLMSSPcalc_ap(cli, (unsigned char*)prs_data_p(data), prs_offset(data));
852 }
853
854 /*
855 * Now copy the data into the outgoing packet.
856 */
857
858 if(!prs_append_prs_data( &outgoing_packet, data)) {
859 DEBUG(0,("rpc_api_pipe_req: Failed to append data to outgoing packet.\n"));
860 prs_mem_free(&outgoing_packet);
861 return False;
862 }
863
864 /*
865 * Add a trailing auth_verifier if needed.
866 */
867
868 if (auth_seal || auth_verify) {
869 RPC_HDR_AUTH hdr_auth;
870
871 init_rpc_hdr_auth(&hdr_auth, NTLMSSP_AUTH_TYPE,
872 NTLMSSP_AUTH_LEVEL, 0x08, (auth_verify ? 1 : 0));
873 if(!smb_io_rpc_hdr_auth("hdr_auth", &hdr_auth, &outgoing_packet, 0)) {
874 DEBUG(0,("rpc_api_pipe_req: Failed to marshal RPC_HDR_AUTH.\n"));
875 prs_mem_free(&outgoing_packet);
876 return False;
877 }
878 }
879
880 /*
881 * Finally the auth data itself.
882 */
883
884 if (auth_verify) {
885 RPC_AUTH_NTLMSSP_CHK chk;
886 uint32 current_offset = prs_offset(&outgoing_packet);
887
888 init_rpc_auth_ntlmssp_chk(&chk, NTLMSSP_SIGN_VERSION, crc32, cli->ntlmssp_seq_num++);
889 if(!smb_io_rpc_auth_ntlmssp_chk("auth_sign", &chk, &outgoing_packet, 0)) {
890 DEBUG(0,("rpc_api_pipe_req: Failed to marshal RPC_AUTH_NTLMSSP_CHK.\n"));
891 prs_mem_free(&outgoing_packet);
892 return False;
893 }
894 NTLMSSPcalc_ap(cli, (unsigned char*)&pdata_out[current_offset+4], RPC_AUTH_NTLMSSP_CHK_LEN - 4);
895 }
896
897 DEBUG(100,("data_len: %x data_calc_len: %x\n", data_len, prs_offset(&outgoing_packet)));
898
899 ret = rpc_api_pipe(cli, 0x0026, &outgoing_packet, rdata);
900
901 /* Also capture received data */
902 slprintf(dump_name, sizeof(dump_name) - 1, "reply_%s",
903 cli_pipe_get_name(cli));
904 prs_dump(dump_name, op_num, rdata);
905
906 prs_mem_free(&outgoing_packet);
907
908 return ret;
909 }
910
911 /****************************************************************************
912 Set the handle state.
913 ****************************************************************************/
914
915 static BOOL rpc_pipe_set_hnd_state(struct cli_state *cli, const char *pipe_name, uint16 device_state)
916 {
917 BOOL state_set = False;
918 char param[2];
919 uint16 setup[2]; /* only need 2 uint16 setup parameters */
920 char *rparam = NULL;
921 char *rdata = NULL;
922 uint32 rparam_len, rdata_len;
923
924 if (pipe_name == NULL)
925 return False;
926
927 DEBUG(5,("Set Handle state Pipe[%x]: %s - device state:%x\n",
928 cli->nt_pipe_fnum, pipe_name, device_state));
929
930 /* create parameters: device state */
931 SSVAL(param, 0, device_state);
932
933 /* create setup parameters. */
934 setup[0] = 0x0001;
935 setup[1] = cli->nt_pipe_fnum; /* pipe file handle. got this from an SMBOpenX. */
936
937 /* send the data on \PIPE\ */
938 if (cli_api_pipe(cli, "\\PIPE\\",
939 setup, 2, 0, /* setup, length, max */
940 param, 2, 0, /* param, length, max */
941 NULL, 0, 1024, /* data, length, max */
942 &rparam, &rparam_len, /* return param, length */
943 &rdata, &rdata_len)) /* return data, length */
944 {
945 DEBUG(5, ("Set Handle state: return OK\n"));
946 state_set = True;
947 }
948
949 SAFE_FREE(rparam);
950 SAFE_FREE(rdata);
951
952 return state_set;
953 }
954
955 /****************************************************************************
956 check the rpc bind acknowledge response
957 ****************************************************************************/
958
959 static BOOL valid_pipe_name(const char *pipe_name, RPC_IFACE *abstract, RPC_IFACE *transfer)
960 {
961 int pipe_idx = 0;
962
963 while (pipe_names[pipe_idx].client_pipe != NULL) {
964 if (strequal(pipe_name, pipe_names[pipe_idx].client_pipe )) {
965 DEBUG(5,("Bind Abstract Syntax: "));
966 dump_data(5, (char*)&(pipe_names[pipe_idx].abstr_syntax),
967 sizeof(pipe_names[pipe_idx].abstr_syntax));
968 DEBUG(5,("Bind Transfer Syntax: "));
969 dump_data(5, (char*)&(pipe_names[pipe_idx].trans_syntax),
970 sizeof(pipe_names[pipe_idx].trans_syntax));
971
972 /* copy the required syntaxes out so we can do the right bind */
973 *transfer = pipe_names[pipe_idx].trans_syntax;
974 *abstract = pipe_names[pipe_idx].abstr_syntax;
975
976 return True;
977 }
978 pipe_idx++;
979 };
980
981 DEBUG(5,("Bind RPC Pipe[%s] unsupported\n", pipe_name));
982 return False;
983 }
984
985 /****************************************************************************
986 check the rpc bind acknowledge response
987 ****************************************************************************/
988
989 static BOOL check_bind_response(RPC_HDR_BA *hdr_ba, const char *pipe_name, RPC_IFACE *transfer)
990 {
991 int i = 0;
992
993 while ((pipe_names[i].client_pipe != NULL) && hdr_ba->addr.len > 0) {
994 if ((strequal(pipe_name, pipe_names[i].client_pipe ))) {
995 if (strequal(hdr_ba->addr.str, pipe_names[i].server_pipe )) {
996 DEBUG(5,("bind_rpc_pipe: server pipe_name found: %s\n",
997 pipe_names[i].server_pipe ));
998 break;
999 } else {
1000 DEBUG(4,("bind_rpc_pipe: pipe_name %s != expected pipe %s. oh well!\n",
1001 pipe_names[i].server_pipe ,
1002 hdr_ba->addr.str));
1003 break;
1004 }
1005 } else {
1006 i++;
1007 }
1008 }
1009
1010 if (pipe_names[i].server_pipe == NULL) {
1011 DEBUG(2,("bind_rpc_pipe: pipe name %s unsupported\n", hdr_ba->addr.str));
1012 return False;
1013 }
1014
1015 /* check the transfer syntax */
1016 if ((hdr_ba->transfer.version != transfer->version) ||
1017 (memcmp(&hdr_ba->transfer.uuid, &transfer->uuid, sizeof(transfer->uuid)) !=0)) {
1018 DEBUG(0,("bind_rpc_pipe: transfer syntax differs\n"));
1019 return False;
1020 }
1021
1022 /* lkclXXXX only accept one result: check the result(s) */
1023 if (hdr_ba->res.num_results != 0x1 || hdr_ba->res.result != 0) {
1024 DEBUG(2,("bind_rpc_pipe: bind denied results: %d reason: %x\n",
1025 hdr_ba->res.num_results, hdr_ba->res.reason));
1026 }
1027
1028 DEBUG(5,("bind_rpc_pipe: accepted!\n"));
1029 return True;
1030 }
1031
1032 /****************************************************************************
1033 Create and send the third packet in an RPC auth.
1034 ****************************************************************************/
1035
1036 static BOOL rpc_send_auth_reply(struct cli_state *cli, prs_struct *rdata, uint32 rpc_call_id)
1037 {
1038 RPC_HDR_AUTH rhdr_auth;
1039 RPC_AUTH_VERIFIER rhdr_verf;
1040 RPC_AUTH_NTLMSSP_CHAL rhdr_chal;
1041 char buffer[MAX_PDU_FRAG_LEN];
1042 prs_struct rpc_out;
1043 ssize_t ret;
1044
1045 unsigned char p24[24];
1046 unsigned char lm_owf[24];
1047 unsigned char lm_hash[16];
1048
1049 if(!smb_io_rpc_hdr_auth("", &rhdr_auth, rdata, 0)) {
1050 DEBUG(0,("rpc_send_auth_reply: Failed to unmarshall RPC_HDR_AUTH.\n"));
1051 return False;
1052 }
1053 if(!smb_io_rpc_auth_verifier("", &rhdr_verf, rdata, 0)) {
1054 DEBUG(0,("rpc_send_auth_reply: Failed to unmarshall RPC_AUTH_VERIFIER.\n"));
1055 return False;
1056 }
1057 if(!smb_io_rpc_auth_ntlmssp_chal("", &rhdr_chal, rdata, 0)) {
1058 DEBUG(0,("rpc_send_auth_reply: Failed to unmarshall RPC_AUTH_NTLMSSP_CHAL.\n"));
1059 return False;
1060 }
1061
1062 cli->ntlmssp_cli_flgs = rhdr_chal.neg_flags;
1063
1064 pwd_make_lm_nt_owf(&cli->pwd, rhdr_chal.challenge);
1065
1066 prs_init(&rpc_out, 0, cli->mem_ctx, MARSHALL);
1067
1068 prs_give_memory( &rpc_out, buffer, sizeof(buffer), False);
1069
1070 create_rpc_bind_resp(&cli->pwd, cli->domain,
1071 cli->user_name, global_myname,
1072 cli->ntlmssp_cli_flgs, rpc_call_id,
1073 &rpc_out);
1074
1075 pwd_get_lm_nt_owf(&cli->pwd, lm_owf, NULL);
1076 pwd_get_lm_nt_16(&cli->pwd, lm_hash, NULL);
1077
1078 NTLMSSPOWFencrypt(lm_hash, lm_owf, p24);
1079
1080 {
1081 unsigned char j = 0;
1082 int ind;
1083 unsigned char k2[8];
1084
1085 memcpy(k2, p24, 5);
1086 k2[5] = 0xe5;
1087 k2[6] = 0x38;
1088 k2[7] = 0xb0;
1089
1090 for (ind = 0; ind < 256; ind++)
1091 cli->ntlmssp_hash[ind] = (unsigned char)ind;
1092
1093 for( ind = 0; ind < 256; ind++) {
1094 unsigned char tc;
1095
1096 j += (cli->ntlmssp_hash[ind] + k2[ind%8]);
1097
1098 tc = cli->ntlmssp_hash[ind];
1099 cli->ntlmssp_hash[ind] = cli->ntlmssp_hash[j];
1100 cli->ntlmssp_hash[j] = tc;
1101 }
1102
1103 cli->ntlmssp_hash[256] = 0;
1104 cli->ntlmssp_hash[257] = 0;
1105 }
1106
1107 memset((char *)lm_hash, '\0', sizeof(lm_hash));
1108
1109 if ((ret = cli_write(cli, cli->nt_pipe_fnum, 0x8, prs_data_p(&rpc_out),
1110 0, (size_t)prs_offset(&rpc_out))) != (ssize_t)prs_offset(&rpc_out)) {
1111 DEBUG(0,("rpc_send_auth_reply: cli_write failed. Return was %d\n", (int)ret));
1112 return False;
1113 }
1114
1115 cli->ntlmssp_srv_flgs = rhdr_chal.neg_flags;
1116 return True;
1117 }
1118
1119 /****************************************************************************
1120 Do an rpc bind.
1121 ****************************************************************************/
1122
1123 BOOL rpc_pipe_bind(struct cli_state *cli, const char *pipe_name, char *my_name)
1124 {
1125 RPC_IFACE abstract;
1126 RPC_IFACE transfer;
1127 prs_struct rpc_out;
1128 prs_struct rdata;
1129 BOOL do_auth = (cli->ntlmssp_cli_flgs != 0);
1130 uint32 rpc_call_id;
1131 char buffer[MAX_PDU_FRAG_LEN];
1132
1133 DEBUG(5,("Bind RPC Pipe[%x]: %s\n", cli->nt_pipe_fnum, pipe_name));
1134
1135 if (!valid_pipe_name(pipe_name, &abstract, &transfer))
1136 return False;
1137
1138 prs_init(&rpc_out, 0, cli->mem_ctx, MARSHALL);
1139
1140 /*
1141 * Use the MAX_PDU_FRAG_LEN buffer to store the bind request.
1142 */
1143
1144 prs_give_memory( &rpc_out, buffer, sizeof(buffer), False);
1145
1146 rpc_call_id = get_rpc_call_id();
1147
1148 /* Marshall the outgoing data. */
1149 create_rpc_bind_req(&rpc_out, do_auth, rpc_call_id,
1150 &abstract, &transfer,
1151 global_myname, cli->domain, cli->ntlmssp_cli_flgs);
1152
1153 /* Initialize the incoming data struct. */
1154 prs_init(&rdata, 0, cli->mem_ctx, UNMARSHALL);
1155
1156 /* send data on \PIPE\. receive a response */
1157 if (rpc_api_pipe(cli, 0x0026, &rpc_out, &rdata)) {
1158 RPC_HDR_BA hdr_ba;
1159
1160 DEBUG(5, ("rpc_pipe_bind: rpc_api_pipe returned OK.\n"));
1161
1162 if(!smb_io_rpc_hdr_ba("", &hdr_ba, &rdata, 0)) {
1163 DEBUG(0,("rpc_pipe_bind: Failed to unmarshall RPC_HDR_BA.\n"));
1164 prs_mem_free(&rdata);
1165 return False;
1166 }
1167
1168 if(!check_bind_response(&hdr_ba, pipe_name, &transfer)) {
1169 DEBUG(0,("rpc_pipe_bind: check_bind_response failed.\n"));
1170 prs_mem_free(&rdata);
1171 return False;
1172 }
1173
1174 cli->max_xmit_frag = hdr_ba.bba.max_tsize;
1175 cli->max_recv_frag = hdr_ba.bba.max_rsize;
1176
1177 /*
1178 * If we're doing NTLMSSP auth we need to send a reply to
1179 * the bind-ack to complete the 3-way challenge response
1180 * handshake.
1181 */
1182
1183 if (do_auth && !rpc_send_auth_reply(cli, &rdata, rpc_call_id)) {
1184 DEBUG(0,("rpc_pipe_bind: rpc_send_auth_reply failed.\n"));
1185 prs_mem_free(&rdata);
1186 return False;
1187 }
1188 }
1189
1190 prs_mem_free(&rdata);
1191 return True;
1192 }
1193
1194 /****************************************************************************
1195 Set ntlmssp negotiation flags.
1196 ****************************************************************************/
1197
1198 void cli_nt_set_ntlmssp_flgs(struct cli_state *cli, uint32 ntlmssp_flgs)
1199 {
1200 cli->ntlmssp_cli_flgs = ntlmssp_flgs;
1201 }
1202
1203
1204 /****************************************************************************
1205 Open a session.
1206 ****************************************************************************/
1207
1208 BOOL cli_nt_session_open(struct cli_state *cli, const char *pipe_name)
1209 {
1210 int fnum;
1211
1212 SMB_ASSERT(cli->nt_pipe_fnum == 0);
1213
1214 if (cli->capabilities & CAP_NT_SMBS) {
1215 if ((fnum = cli_nt_create(cli, &pipe_name[5], DESIRED_ACCESS_PIPE)) == -1) {
1216 DEBUG(0,("cli_nt_session_open: cli_nt_create failed on pipe %s to machine %s. Error was %s\n",
1217 &pipe_name[5], cli->desthost, cli_errstr(cli)));
1218 return False;
1219 }
1220
1221 cli->nt_pipe_fnum = (uint16)fnum;
1222 } else {
1223 if ((fnum = cli_open(cli, pipe_name, O_CREAT|O_RDWR, DENY_NONE)) == -1) {
1224 DEBUG(0,("cli_nt_session_open: cli_open failed on pipe %s to machine %s. Error was %s\n",
1225 pipe_name, cli->desthost, cli_errstr(cli)));
1226 return False;
1227 }
1228
1229 cli->nt_pipe_fnum = (uint16)fnum;
1230
1231 /**************** Set Named Pipe State ***************/
1232 if (!rpc_pipe_set_hnd_state(cli, pipe_name, 0x4300)) {
1233 DEBUG(0,("cli_nt_session_open: pipe hnd state failed. Error was %s\n",
1234 cli_errstr(cli)));
1235 cli_close(cli, cli->nt_pipe_fnum);
1236 return False;
1237 }
1238 }
1239
1240 /******************* bind request on pipe *****************/
1241
1242 if (!rpc_pipe_bind(cli, pipe_name, global_myname)) {
1243 DEBUG(0,("cli_nt_session_open: rpc bind failed. Error was %s\n",
1244 cli_errstr(cli)));
1245 cli_close(cli, cli->nt_pipe_fnum);
1246 return False;
1247 }
1248
1249 /*
1250 * Setup the remote server name prefixed by \ and the machine account name.
1251 */
1252
1253 fstrcpy(cli->srv_name_slash, "\\\\");
1254 fstrcat(cli->srv_name_slash, cli->desthost);
1255 strupper(cli->srv_name_slash);
1256
1257 fstrcpy(cli->clnt_name_slash, "\\\\");
1258 fstrcat(cli->clnt_name_slash, global_myname);
1259 strupper(cli->clnt_name_slash);
1260
1261 fstrcpy(cli->mach_acct, global_myname);
1262 fstrcat(cli->mach_acct, "$");
1263 strupper(cli->mach_acct);
1264
1265 /* Remember which pipe we're talking to */
1266 fstrcpy(cli->pipe_name, pipe_name);
1267
1268 return True;
1269 }
1270
1271
1272 const char *cli_pipe_get_name(struct cli_state *cli)
1273 {
1274 return cli->pipe_name;
1275 }
1276
1277
1278 /****************************************************************************
1279 close the session
1280 ****************************************************************************/
1281
1282 void cli_nt_session_close(struct cli_state *cli)
1283 {
1284 cli_close(cli, cli->nt_pipe_fnum);
1285 cli->nt_pipe_fnum = 0;
1286 }
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