source: trunk/server/source3/libsmb/clitrans.c

Last change on this file was 751, checked in by Silvan Scherrer, 13 years ago

Samba Server: updated trunk to 3.6.9
File size: 20.3 KB
RevLine 
[745]1/*
2 Unix SMB/CIFS implementation.
3 client transaction calls
4 Copyright (C) Andrew Tridgell 1994-1998
5
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 3 of the License, or
9 (at your option) any later version.
10
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.
15
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
18*/
19
20#include "includes.h"
21#include "libsmb/libsmb.h"
22#include "../lib/util/tevent_ntstatus.h"
23#include "async_smb.h"
24
25struct trans_recvblob {
26 uint8_t *data;
27 uint32_t max, total, received;
28};
29
30struct cli_trans_state {
31 struct cli_state *cli;
32 struct event_context *ev;
33 uint8_t cmd;
34 uint16_t mid;
35 const char *pipe_name;
36 uint8_t *pipe_name_conv;
37 size_t pipe_name_conv_len;
38 uint16_t fid;
39 uint16_t function;
40 int flags;
41 uint16_t *setup;
42 uint8_t num_setup, max_setup;
43 uint8_t *param;
44 uint32_t num_param, param_sent;
45 uint8_t *data;
46 uint32_t num_data, data_sent;
47
48 uint8_t num_rsetup;
49 uint16_t *rsetup;
50 struct trans_recvblob rparam;
51 struct trans_recvblob rdata;
52 uint16_t recv_flags2;
53
54 struct iovec iov[6];
55 uint8_t pad[4];
56 uint8_t zero_pad[4];
57 uint16_t vwv[32];
58
59 struct tevent_req *primary_subreq;
60};
61
62static void cli_trans_cleanup_primary(struct cli_trans_state *state)
63{
64 if (state->primary_subreq) {
65 cli_smb_req_set_mid(state->primary_subreq, 0);
66 cli_smb_req_unset_pending(state->primary_subreq);
67 TALLOC_FREE(state->primary_subreq);
68 }
69}
70
71static int cli_trans_state_destructor(struct cli_trans_state *state)
72{
73 cli_trans_cleanup_primary(state);
74 return 0;
75}
76
77static NTSTATUS cli_pull_trans(uint8_t *inbuf,
78 uint8_t wct, uint16_t *vwv,
79 uint16_t num_bytes, uint8_t *bytes,
80 uint8_t smb_cmd, bool expect_first_reply,
81 uint8_t *pnum_setup, uint16_t **psetup,
82 uint32_t *ptotal_param, uint32_t *pnum_param,
83 uint32_t *pparam_disp, uint8_t **pparam,
84 uint32_t *ptotal_data, uint32_t *pnum_data,
85 uint32_t *pdata_disp, uint8_t **pdata)
86{
87 uint32_t param_ofs, data_ofs;
88
89 if (expect_first_reply) {
90 if ((wct != 0) || (num_bytes != 0)) {
91 return NT_STATUS_INVALID_NETWORK_RESPONSE;
92 }
93 return NT_STATUS_OK;
94 }
95
96 switch (smb_cmd) {
97 case SMBtrans:
98 case SMBtrans2:
99 if (wct < 10) {
100 return NT_STATUS_INVALID_NETWORK_RESPONSE;
101 }
102 *ptotal_param = SVAL(vwv + 0, 0);
103 *ptotal_data = SVAL(vwv + 1, 0);
104 *pnum_param = SVAL(vwv + 3, 0);
105 param_ofs = SVAL(vwv + 4, 0);
106 *pparam_disp = SVAL(vwv + 5, 0);
107 *pnum_data = SVAL(vwv + 6, 0);
108 data_ofs = SVAL(vwv + 7, 0);
109 *pdata_disp = SVAL(vwv + 8, 0);
110 *pnum_setup = CVAL(vwv + 9, 0);
111 if (wct < 10 + (*pnum_setup)) {
112 return NT_STATUS_INVALID_NETWORK_RESPONSE;
113 }
114 *psetup = vwv + 10;
115
116 break;
117 case SMBnttrans:
118 if (wct < 18) {
119 return NT_STATUS_INVALID_NETWORK_RESPONSE;
120 }
121 *ptotal_param = IVAL(vwv, 3);
122 *ptotal_data = IVAL(vwv, 7);
123 *pnum_param = IVAL(vwv, 11);
124 param_ofs = IVAL(vwv, 15);
125 *pparam_disp = IVAL(vwv, 19);
126 *pnum_data = IVAL(vwv, 23);
127 data_ofs = IVAL(vwv, 27);
128 *pdata_disp = IVAL(vwv, 31);
129 *pnum_setup = CVAL(vwv, 35);
130 *psetup = vwv + 18;
131 break;
132
133 default:
134 return NT_STATUS_INTERNAL_ERROR;
135 }
136
137 /*
138 * Check for buffer overflows. data_ofs needs to be checked against
139 * the incoming buffer length, data_disp against the total
140 * length. Likewise for param_ofs/param_disp.
141 */
142
143 if (trans_oob(smb_len(inbuf), param_ofs, *pnum_param)
144 || trans_oob(*ptotal_param, *pparam_disp, *pnum_param)
145 || trans_oob(smb_len(inbuf), data_ofs, *pnum_data)
146 || trans_oob(*ptotal_data, *pdata_disp, *pnum_data)) {
147 return NT_STATUS_INVALID_NETWORK_RESPONSE;
148 }
149
150 *pparam = (uint8_t *)inbuf + 4 + param_ofs;
151 *pdata = (uint8_t *)inbuf + 4 + data_ofs;
152
153 return NT_STATUS_OK;
154}
155
156static NTSTATUS cli_trans_pull_blob(TALLOC_CTX *mem_ctx,
157 struct trans_recvblob *blob,
158 uint32_t total, uint32_t thistime,
159 uint8_t *buf, uint32_t displacement)
160{
161 if (blob->data == NULL) {
162 if (total > blob->max) {
163 return NT_STATUS_INVALID_NETWORK_RESPONSE;
164 }
165 blob->total = total;
166 blob->data = TALLOC_ARRAY(mem_ctx, uint8_t, total);
167 if (blob->data == NULL) {
168 return NT_STATUS_NO_MEMORY;
169 }
170 }
171
172 if (total > blob->total) {
173 return NT_STATUS_INVALID_NETWORK_RESPONSE;
174 }
175
176 if (thistime) {
177 memcpy(blob->data + displacement, buf, thistime);
178 blob->received += thistime;
179 }
180
181 return NT_STATUS_OK;
182}
183
184static void cli_trans_format(struct cli_trans_state *state, uint8_t *pwct,
185 int *piov_count)
186{
187 uint8_t wct = 0;
188 struct iovec *iov = state->iov;
189 uint8_t *pad = state->pad;
190 uint16_t *vwv = state->vwv;
191 uint32_t param_offset;
192 uint32_t this_param = 0;
193 uint32_t param_pad;
194 uint32_t data_offset;
195 uint32_t this_data = 0;
196 uint32_t data_pad;
197 uint32_t useable_space;
198 uint8_t cmd;
199
200 cmd = state->cmd;
201
202 if ((state->param_sent != 0) || (state->data_sent != 0)) {
203 /* The secondary commands are one after the primary ones */
204 cmd += 1;
205 }
206
207 param_offset = smb_size - 4;
208
209 switch (cmd) {
210 case SMBtrans:
[751]211 if (cli_ucs2(state->cli)) {
212 pad[0] = 0;
213 iov[0].iov_base = (void *)pad;
214 iov[0].iov_len = 1;
215 param_offset += 1;
216 iov += 1;
217 }
218 iov[0].iov_base = (void *)state->pipe_name_conv;
219 iov[0].iov_len = state->pipe_name_conv_len;
[745]220 wct = 14 + state->num_setup;
[751]221 param_offset += iov[0].iov_len;
222 iov += 1;
[745]223 break;
224 case SMBtrans2:
225 pad[0] = 0;
226 pad[1] = 'D'; /* Copy this from "old" 3.0 behaviour */
227 pad[2] = ' ';
228 iov[0].iov_base = (void *)pad;
229 iov[0].iov_len = 3;
230 wct = 14 + state->num_setup;
231 param_offset += 3;
232 iov += 1;
233 break;
234 case SMBtranss:
235 wct = 8;
236 break;
237 case SMBtranss2:
238 wct = 9;
239 break;
240 case SMBnttrans:
241 wct = 19 + state->num_setup;
242 break;
243 case SMBnttranss:
244 wct = 18;
245 break;
246 }
247
248 param_offset += wct * sizeof(uint16_t);
249 useable_space = state->cli->max_xmit - param_offset;
250
251 param_pad = param_offset % 4;
252 if (param_pad > 0) {
253 param_pad = MIN(param_pad, useable_space);
254 iov[0].iov_base = (void *)state->zero_pad;
255 iov[0].iov_len = param_pad;
256 iov += 1;
257 param_offset += param_pad;
258 }
259 useable_space = state->cli->max_xmit - param_offset;
260
261 if (state->param_sent < state->num_param) {
262 this_param = MIN(state->num_param - state->param_sent,
263 useable_space);
264 iov[0].iov_base = (void *)(state->param + state->param_sent);
265 iov[0].iov_len = this_param;
266 iov += 1;
267 }
268
269 data_offset = param_offset + this_param;
270 useable_space = state->cli->max_xmit - data_offset;
271
272 data_pad = data_offset % 4;
273 if (data_pad > 0) {
274 data_pad = MIN(data_pad, useable_space);
275 iov[0].iov_base = (void *)state->zero_pad;
276 iov[0].iov_len = data_pad;
277 iov += 1;
278 data_offset += data_pad;
279 }
280 useable_space = state->cli->max_xmit - data_offset;
281
282 if (state->data_sent < state->num_data) {
283 this_data = MIN(state->num_data - state->data_sent,
284 useable_space);
285 iov[0].iov_base = (void *)(state->data + state->data_sent);
286 iov[0].iov_len = this_data;
287 iov += 1;
288 }
289
290 DEBUG(10, ("num_setup=%u, max_setup=%u, "
291 "param_total=%u, this_param=%u, max_param=%u, "
292 "data_total=%u, this_data=%u, max_data=%u, "
293 "param_offset=%u, param_pad=%u, param_disp=%u, "
294 "data_offset=%u, data_pad=%u, data_disp=%u\n",
295 (unsigned)state->num_setup, (unsigned)state->max_setup,
296 (unsigned)state->num_param, (unsigned)this_param,
297 (unsigned)state->rparam.max,
298 (unsigned)state->num_data, (unsigned)this_data,
299 (unsigned)state->rdata.max,
300 (unsigned)param_offset, (unsigned)param_pad,
301 (unsigned)state->param_sent,
302 (unsigned)data_offset, (unsigned)data_pad,
303 (unsigned)state->data_sent));
304
305 switch (cmd) {
306 case SMBtrans:
307 case SMBtrans2:
308 SSVAL(vwv + 0, 0, state->num_param);
309 SSVAL(vwv + 1, 0, state->num_data);
310 SSVAL(vwv + 2, 0, state->rparam.max);
311 SSVAL(vwv + 3, 0, state->rdata.max);
312 SCVAL(vwv + 4, 0, state->max_setup);
313 SCVAL(vwv + 4, 1, 0); /* reserved */
314 SSVAL(vwv + 5, 0, state->flags);
315 SIVAL(vwv + 6, 0, 0); /* timeout */
316 SSVAL(vwv + 8, 0, 0); /* reserved */
317 SSVAL(vwv + 9, 0, this_param);
318 SSVAL(vwv +10, 0, param_offset);
319 SSVAL(vwv +11, 0, this_data);
320 SSVAL(vwv +12, 0, data_offset);
321 SCVAL(vwv +13, 0, state->num_setup);
322 SCVAL(vwv +13, 1, 0); /* reserved */
323 memcpy(vwv + 14, state->setup,
324 sizeof(uint16_t) * state->num_setup);
325 break;
326 case SMBtranss:
327 case SMBtranss2:
328 SSVAL(vwv + 0, 0, state->num_param);
329 SSVAL(vwv + 1, 0, state->num_data);
330 SSVAL(vwv + 2, 0, this_param);
331 SSVAL(vwv + 3, 0, param_offset);
332 SSVAL(vwv + 4, 0, state->param_sent);
333 SSVAL(vwv + 5, 0, this_data);
334 SSVAL(vwv + 6, 0, data_offset);
335 SSVAL(vwv + 7, 0, state->data_sent);
336 if (cmd == SMBtranss2) {
337 SSVAL(vwv + 8, 0, state->fid);
338 }
339 break;
340 case SMBnttrans:
341 SCVAL(vwv + 0, 0, state->max_setup);
342 SSVAL(vwv + 0, 1, 0); /* reserved */
343 SIVAL(vwv + 1, 1, state->num_param);
344 SIVAL(vwv + 3, 1, state->num_data);
345 SIVAL(vwv + 5, 1, state->rparam.max);
346 SIVAL(vwv + 7, 1, state->rdata.max);
347 SIVAL(vwv + 9, 1, this_param);
348 SIVAL(vwv +11, 1, param_offset);
349 SIVAL(vwv +13, 1, this_data);
350 SIVAL(vwv +15, 1, data_offset);
351 SCVAL(vwv +17, 1, state->num_setup);
352 SSVAL(vwv +18, 0, state->function);
353 memcpy(vwv + 19, state->setup,
354 sizeof(uint16_t) * state->num_setup);
355 break;
356 case SMBnttranss:
357 SSVAL(vwv + 0, 0, 0); /* reserved */
358 SCVAL(vwv + 1, 0, 0); /* reserved */
359 SIVAL(vwv + 1, 1, state->num_param);
360 SIVAL(vwv + 3, 1, state->num_data);
361 SIVAL(vwv + 5, 1, this_param);
362 SIVAL(vwv + 7, 1, param_offset);
363 SIVAL(vwv + 9, 1, state->param_sent);
364 SIVAL(vwv +11, 1, this_data);
365 SIVAL(vwv +13, 1, data_offset);
366 SIVAL(vwv +15, 1, state->data_sent);
367 SCVAL(vwv +17, 1, 0); /* reserved */
368 break;
369 }
370
371 state->param_sent += this_param;
372 state->data_sent += this_data;
373
374 *pwct = wct;
375 *piov_count = iov - state->iov;
376}
377
378static void cli_trans_done(struct tevent_req *subreq);
379
380struct tevent_req *cli_trans_send(
381 TALLOC_CTX *mem_ctx, struct event_context *ev,
382 struct cli_state *cli, uint8_t cmd,
383 const char *pipe_name, uint16_t fid, uint16_t function, int flags,
384 uint16_t *setup, uint8_t num_setup, uint8_t max_setup,
385 uint8_t *param, uint32_t num_param, uint32_t max_param,
386 uint8_t *data, uint32_t num_data, uint32_t max_data)
387{
388 struct tevent_req *req, *subreq;
389 struct cli_trans_state *state;
390 int iov_count;
391 uint8_t wct;
392 NTSTATUS status;
393
394 req = tevent_req_create(mem_ctx, &state, struct cli_trans_state);
395 if (req == NULL) {
396 return NULL;
397 }
398
399 if ((cmd == SMBtrans) || (cmd == SMBtrans2)) {
400 if ((num_param > 0xffff) || (max_param > 0xffff)
401 || (num_data > 0xffff) || (max_data > 0xffff)) {
402 DEBUG(3, ("Attempt to send invalid trans2 request "
403 "(setup %u, params %u/%u, data %u/%u)\n",
404 (unsigned)num_setup,
405 (unsigned)num_param, (unsigned)max_param,
406 (unsigned)num_data, (unsigned)max_data));
407 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
408 return tevent_req_post(req, ev);
409 }
410 }
411
412 /*
413 * The largest wct will be for nttrans (19+num_setup). Make sure we
414 * don't overflow state->vwv in cli_trans_format.
415 */
416
417 if ((num_setup + 19) > ARRAY_SIZE(state->vwv)) {
418 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
419 return tevent_req_post(req, ev);
420 }
421
422 state->cli = cli;
423 state->ev = ev;
424 state->cmd = cmd;
425 state->flags = flags;
426 state->num_rsetup = 0;
427 state->rsetup = NULL;
428 ZERO_STRUCT(state->rparam);
429 ZERO_STRUCT(state->rdata);
430
431 if ((pipe_name != NULL)
432 && (!convert_string_talloc(state, CH_UNIX,
433 cli_ucs2(cli) ? CH_UTF16LE : CH_DOS,
434 pipe_name, strlen(pipe_name) + 1,
435 &state->pipe_name_conv,
436 &state->pipe_name_conv_len, true))) {
437 tevent_req_nterror(req, NT_STATUS_NO_MEMORY);
438 return tevent_req_post(req, ev);
439 }
440 state->fid = fid; /* trans2 */
441 state->function = function; /* nttrans */
442
443 state->setup = setup;
444 state->num_setup = num_setup;
445 state->max_setup = max_setup;
446
447 state->param = param;
448 state->num_param = num_param;
449 state->param_sent = 0;
450 state->rparam.max = max_param;
451
452 state->data = data;
453 state->num_data = num_data;
454 state->data_sent = 0;
455 state->rdata.max = max_data;
456
457 cli_trans_format(state, &wct, &iov_count);
458
459 subreq = cli_smb_req_create(state, ev, cli, cmd, 0, wct, state->vwv,
460 iov_count, state->iov);
461 if (tevent_req_nomem(subreq, req)) {
462 return tevent_req_post(req, ev);
463 }
464 status = cli_smb_req_send(subreq);
465 if (!NT_STATUS_IS_OK(status)) {
466 tevent_req_nterror(req, status);
467 return tevent_req_post(req, state->ev);
468 }
469 tevent_req_set_callback(subreq, cli_trans_done, req);
470
471 /*
472 * Now get the MID of the primary request
473 * and mark it as persistent. This means
474 * we will able to send and receive multiple
475 * SMB pdus using this MID in both directions
476 * (including correct SMB signing).
477 */
478 state->mid = cli_smb_req_mid(subreq);
479 cli_smb_req_set_mid(subreq, state->mid);
480 state->primary_subreq = subreq;
481 talloc_set_destructor(state, cli_trans_state_destructor);
482
483 return req;
484}
485
486static void cli_trans_done2(struct tevent_req *subreq);
487
488static void cli_trans_done(struct tevent_req *subreq)
489{
490 struct tevent_req *req = tevent_req_callback_data(
491 subreq, struct tevent_req);
492 struct cli_trans_state *state = tevent_req_data(
493 req, struct cli_trans_state);
494 NTSTATUS status;
495 bool sent_all;
496 uint8_t wct;
497 uint16_t *vwv;
498 uint32_t num_bytes;
499 uint8_t *bytes;
500 uint8_t *inbuf;
501 uint8_t num_setup = 0;
502 uint16_t *setup = NULL;
503 uint32_t total_param = 0;
504 uint32_t num_param = 0;
505 uint32_t param_disp = 0;
506 uint32_t total_data = 0;
507 uint32_t num_data = 0;
508 uint32_t data_disp = 0;
509 uint8_t *param = NULL;
510 uint8_t *data = NULL;
511
512 status = cli_smb_recv(subreq, state, &inbuf, 0, &wct, &vwv,
513 &num_bytes, &bytes);
514 /*
515 * Do not TALLOC_FREE(subreq) here, we might receive more than
516 * one response for the same mid.
517 */
518
519 /*
520 * We can receive something like STATUS_MORE_ENTRIES, so don't use
521 * !NT_STATUS_IS_OK(status) here.
522 */
523
524 if (NT_STATUS_IS_ERR(status)) {
525 goto fail;
526 }
527
528 sent_all = ((state->param_sent == state->num_param)
529 && (state->data_sent == state->num_data));
530
531 status = cli_pull_trans(
532 inbuf, wct, vwv, num_bytes, bytes,
533 state->cmd, !sent_all, &num_setup, &setup,
534 &total_param, &num_param, &param_disp, &param,
535 &total_data, &num_data, &data_disp, &data);
536
537 if (!NT_STATUS_IS_OK(status)) {
538 goto fail;
539 }
540
541 if (!sent_all) {
542 int iov_count;
543 struct tevent_req *subreq2;
544
545 cli_trans_format(state, &wct, &iov_count);
546
547 subreq2 = cli_smb_req_create(state, state->ev, state->cli,
548 state->cmd + 1, 0, wct, state->vwv,
549 iov_count, state->iov);
550 if (tevent_req_nomem(subreq2, req)) {
551 return;
552 }
553 cli_smb_req_set_mid(subreq2, state->mid);
554
555 status = cli_smb_req_send(subreq2);
556
557 if (!NT_STATUS_IS_OK(status)) {
558 goto fail;
559 }
560 tevent_req_set_callback(subreq2, cli_trans_done2, req);
561
562 return;
563 }
564
565 status = cli_trans_pull_blob(
566 state, &state->rparam, total_param, num_param, param,
567 param_disp);
568
569 if (!NT_STATUS_IS_OK(status)) {
570 DEBUG(10, ("Pulling params failed: %s\n", nt_errstr(status)));
571 goto fail;
572 }
573
574 status = cli_trans_pull_blob(
575 state, &state->rdata, total_data, num_data, data,
576 data_disp);
577
578 if (!NT_STATUS_IS_OK(status)) {
579 DEBUG(10, ("Pulling data failed: %s\n", nt_errstr(status)));
580 goto fail;
581 }
582
583 if ((state->rparam.total == state->rparam.received)
584 && (state->rdata.total == state->rdata.received)) {
585 state->recv_flags2 = SVAL(inbuf, smb_flg2);
586 cli_trans_cleanup_primary(state);
587 tevent_req_done(req);
588 return;
589 }
590
591 TALLOC_FREE(inbuf);
592
593 return;
594
595 fail:
596 cli_trans_cleanup_primary(state);
597 tevent_req_nterror(req, status);
598}
599
600static void cli_trans_done2(struct tevent_req *subreq2)
601{
602 struct tevent_req *req = tevent_req_callback_data(
603 subreq2, struct tevent_req);
604 struct cli_trans_state *state = tevent_req_data(
605 req, struct cli_trans_state);
606 NTSTATUS status;
607 bool sent_all;
608 uint8_t wct;
609 uint32_t seqnum;
610
611 /*
612 * First backup the seqnum of the secondary request
613 * and attach it to the primary request.
614 */
615 seqnum = cli_smb_req_seqnum(subreq2);
616 cli_smb_req_set_seqnum(state->primary_subreq, seqnum);
617
618 status = cli_smb_recv(subreq2, state, NULL, 0, &wct, NULL,
619 NULL, NULL);
620 TALLOC_FREE(subreq2);
621
622 if (!NT_STATUS_IS_OK(status)) {
623 goto fail;
624 }
625
626 if (wct != 0) {
627 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
628 goto fail;
629 }
630
631 sent_all = ((state->param_sent == state->num_param)
632 && (state->data_sent == state->num_data));
633
634 if (!sent_all) {
635 int iov_count;
636
637 cli_trans_format(state, &wct, &iov_count);
638
639 subreq2 = cli_smb_req_create(state, state->ev, state->cli,
640 state->cmd + 1, 0, wct, state->vwv,
641 iov_count, state->iov);
642 if (tevent_req_nomem(subreq2, req)) {
643 return;
644 }
645 cli_smb_req_set_mid(subreq2, state->mid);
646
647 status = cli_smb_req_send(subreq2);
648
649 if (!NT_STATUS_IS_OK(status)) {
650 goto fail;
651 }
652 tevent_req_set_callback(subreq2, cli_trans_done2, req);
653 return;
654 }
655
656 return;
657
658 fail:
659 cli_trans_cleanup_primary(state);
660 tevent_req_nterror(req, status);
661}
662
663NTSTATUS cli_trans_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
664 uint16_t *recv_flags2,
665 uint16_t **setup, uint8_t min_setup,
666 uint8_t *num_setup,
667 uint8_t **param, uint32_t min_param,
668 uint32_t *num_param,
669 uint8_t **data, uint32_t min_data,
670 uint32_t *num_data)
671{
672 struct cli_trans_state *state = tevent_req_data(
673 req, struct cli_trans_state);
674 NTSTATUS status;
675
676 cli_trans_cleanup_primary(state);
677
678 if (tevent_req_is_nterror(req, &status)) {
679 return status;
680 }
681
682 if ((state->num_rsetup < min_setup)
683 || (state->rparam.total < min_param)
684 || (state->rdata.total < min_data)) {
685 return NT_STATUS_INVALID_NETWORK_RESPONSE;
686 }
687
688 if (recv_flags2 != NULL) {
689 *recv_flags2 = state->recv_flags2;
690 }
691
692 if (setup != NULL) {
693 *setup = talloc_move(mem_ctx, &state->rsetup);
694 *num_setup = state->num_rsetup;
695 } else {
696 TALLOC_FREE(state->rsetup);
697 }
698
699 if (param != NULL) {
700 *param = talloc_move(mem_ctx, &state->rparam.data);
701 *num_param = state->rparam.total;
702 } else {
703 TALLOC_FREE(state->rparam.data);
704 }
705
706 if (data != NULL) {
707 *data = talloc_move(mem_ctx, &state->rdata.data);
708 *num_data = state->rdata.total;
709 } else {
710 TALLOC_FREE(state->rdata.data);
711 }
712
713 return NT_STATUS_OK;
714}
715
716NTSTATUS cli_trans(TALLOC_CTX *mem_ctx, struct cli_state *cli,
717 uint8_t trans_cmd,
718 const char *pipe_name, uint16_t fid, uint16_t function,
719 int flags,
720 uint16_t *setup, uint8_t num_setup, uint8_t max_setup,
721 uint8_t *param, uint32_t num_param, uint32_t max_param,
722 uint8_t *data, uint32_t num_data, uint32_t max_data,
723 uint16_t *recv_flags2,
724 uint16_t **rsetup, uint8_t min_rsetup, uint8_t *num_rsetup,
725 uint8_t **rparam, uint32_t min_rparam, uint32_t *num_rparam,
726 uint8_t **rdata, uint32_t min_rdata, uint32_t *num_rdata)
727{
728 TALLOC_CTX *frame = talloc_stackframe();
729 struct event_context *ev;
730 struct tevent_req *req;
731 NTSTATUS status = NT_STATUS_OK;
732
733 if (cli_has_async_calls(cli)) {
734 /*
735 * Can't use sync call while an async call is in flight
736 */
737 status = NT_STATUS_INVALID_PARAMETER;
738 goto fail;
739 }
740
741 ev = event_context_init(frame);
742 if (ev == NULL) {
743 status = NT_STATUS_NO_MEMORY;
744 goto fail;
745 }
746
747 req = cli_trans_send(frame, ev, cli, trans_cmd,
748 pipe_name, fid, function, flags,
749 setup, num_setup, max_setup,
750 param, num_param, max_param,
751 data, num_data, max_data);
752 if (req == NULL) {
753 status = NT_STATUS_NO_MEMORY;
754 goto fail;
755 }
756
757 if (!tevent_req_poll(req, ev)) {
758 status = map_nt_error_from_unix(errno);
759 goto fail;
760 }
761
762 status = cli_trans_recv(req, mem_ctx, recv_flags2,
763 rsetup, min_rsetup, num_rsetup,
764 rparam, min_rparam, num_rparam,
765 rdata, min_rdata, num_rdata);
766 fail:
767 TALLOC_FREE(frame);
768 return status;
769}
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