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s4-torture: smb2 copychunk data integrity checks
[Samba/gbeck.git] / source3 / libsmb / clitrans.c
blob4bc9f4a31158928c96d46d77716470b621c8a637
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
25 struct trans_recvblob {
26 uint8_t *data;
27 uint32_t max, total, received;
28 };
29
30 struct cli_trans_state {
31 struct cli_state *cli;
32 struct tevent_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
62 static 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
71 static int cli_trans_state_destructor(struct cli_trans_state *state)
72 {
73 cli_trans_cleanup_primary(state);
74 return 0;
75 }
76
77 static 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 (smb_buffer_oob(smb_len_nbt(inbuf), param_ofs, *pnum_param)
144 || smb_buffer_oob(*ptotal_param, *pparam_disp, *pnum_param)
145 || smb_buffer_oob(smb_len_nbt(inbuf), data_ofs, *pnum_data)
146 || smb_buffer_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
156 static 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
184 static void cli_trans_format(struct cli_trans_state *state, uint8_t *pwct,
185 int *piov_count)
186 {
187 struct cli_state *cli = state->cli;
188 uint8_t wct = 0;
189 struct iovec *iov = state->iov;
190 uint8_t *pad = state->pad;
191 uint16_t *vwv = state->vwv;
192 uint32_t param_offset;
193 uint32_t this_param = 0;
194 uint32_t param_pad;
195 uint32_t data_offset;
196 uint32_t this_data = 0;
197 uint32_t data_pad;
198 uint32_t useable_space;
199 uint8_t cmd;
200
201 cmd = state->cmd;
202
203 if ((state->param_sent != 0) || (state->data_sent != 0)) {
204 /* The secondary commands are one after the primary ones */
205 cmd += 1;
206 }
207
208 param_offset = MIN_SMB_SIZE;
209
210 switch (cmd) {
211 case SMBtrans:
212 pad[0] = 0;
213 iov[0].iov_base = (void *)pad;
214 iov[0].iov_len = 1;
215 iov[1].iov_base = (void *)state->pipe_name_conv;
216 iov[1].iov_len = state->pipe_name_conv_len;
217 wct = 14 + state->num_setup;
218 param_offset += iov[0].iov_len + iov[1].iov_len;
219 iov += 2;
220 break;
221 case SMBtrans2:
222 pad[0] = 0;
223 pad[1] = 'D'; /* Copy this from "old" 3.0 behaviour */
224 pad[2] = ' ';
225 iov[0].iov_base = (void *)pad;
226 iov[0].iov_len = 3;
227 wct = 14 + state->num_setup;
228 param_offset += 3;
229 iov += 1;
230 break;
231 case SMBtranss:
232 wct = 8;
233 break;
234 case SMBtranss2:
235 wct = 9;
236 break;
237 case SMBnttrans:
238 wct = 19 + state->num_setup;
239 break;
240 case SMBnttranss:
241 wct = 18;
242 break;
243 }
244
245 param_offset += wct * sizeof(uint16_t);
246 useable_space = cli_state_available_size(cli, param_offset);
247
248 param_pad = param_offset % 4;
249 if (param_pad > 0) {
250 param_pad = MIN(param_pad, useable_space);
251 iov[0].iov_base = (void *)state->zero_pad;
252 iov[0].iov_len = param_pad;
253 iov += 1;
254 param_offset += param_pad;
255 }
256 useable_space = cli_state_available_size(cli, param_offset);
257
258 if (state->param_sent < state->num_param) {
259 this_param = MIN(state->num_param - state->param_sent,
260 useable_space);
261 iov[0].iov_base = (void *)(state->param + state->param_sent);
262 iov[0].iov_len = this_param;
263 iov += 1;
264 }
265
266 data_offset = param_offset + this_param;
267 useable_space = cli_state_available_size(cli, data_offset);
268
269 data_pad = data_offset % 4;
270 if (data_pad > 0) {
271 data_pad = MIN(data_pad, useable_space);
272 iov[0].iov_base = (void *)state->zero_pad;
273 iov[0].iov_len = data_pad;
274 iov += 1;
275 data_offset += data_pad;
276 }
277 useable_space = cli_state_available_size(cli, data_offset);
278
279 if (state->data_sent < state->num_data) {
280 this_data = MIN(state->num_data - state->data_sent,
281 useable_space);
282 iov[0].iov_base = (void *)(state->data + state->data_sent);
283 iov[0].iov_len = this_data;
284 iov += 1;
285 }
286
287 DEBUG(10, ("num_setup=%u, max_setup=%u, "
288 "param_total=%u, this_param=%u, max_param=%u, "
289 "data_total=%u, this_data=%u, max_data=%u, "
290 "param_offset=%u, param_pad=%u, param_disp=%u, "
291 "data_offset=%u, data_pad=%u, data_disp=%u\n",
292 (unsigned)state->num_setup, (unsigned)state->max_setup,
293 (unsigned)state->num_param, (unsigned)this_param,
294 (unsigned)state->rparam.max,
295 (unsigned)state->num_data, (unsigned)this_data,
296 (unsigned)state->rdata.max,
297 (unsigned)param_offset, (unsigned)param_pad,
298 (unsigned)state->param_sent,
299 (unsigned)data_offset, (unsigned)data_pad,
300 (unsigned)state->data_sent));
301
302 switch (cmd) {
303 case SMBtrans:
304 case SMBtrans2:
305 SSVAL(vwv + 0, 0, state->num_param);
306 SSVAL(vwv + 1, 0, state->num_data);
307 SSVAL(vwv + 2, 0, state->rparam.max);
308 SSVAL(vwv + 3, 0, state->rdata.max);
309 SCVAL(vwv + 4, 0, state->max_setup);
310 SCVAL(vwv + 4, 1, 0); /* reserved */
311 SSVAL(vwv + 5, 0, state->flags);
312 SIVAL(vwv + 6, 0, 0); /* timeout */
313 SSVAL(vwv + 8, 0, 0); /* reserved */
314 SSVAL(vwv + 9, 0, this_param);
315 SSVAL(vwv +10, 0, param_offset);
316 SSVAL(vwv +11, 0, this_data);
317 SSVAL(vwv +12, 0, data_offset);
318 SCVAL(vwv +13, 0, state->num_setup);
319 SCVAL(vwv +13, 1, 0); /* reserved */
320 memcpy(vwv + 14, state->setup,
321 sizeof(uint16_t) * state->num_setup);
322 break;
323 case SMBtranss:
324 case SMBtranss2:
325 SSVAL(vwv + 0, 0, state->num_param);
326 SSVAL(vwv + 1, 0, state->num_data);
327 SSVAL(vwv + 2, 0, this_param);
328 SSVAL(vwv + 3, 0, param_offset);
329 SSVAL(vwv + 4, 0, state->param_sent);
330 SSVAL(vwv + 5, 0, this_data);
331 SSVAL(vwv + 6, 0, data_offset);
332 SSVAL(vwv + 7, 0, state->data_sent);
333 if (cmd == SMBtranss2) {
334 SSVAL(vwv + 8, 0, state->fid);
335 }
336 break;
337 case SMBnttrans:
338 SCVAL(vwv + 0, 0, state->max_setup);
339 SSVAL(vwv + 0, 1, 0); /* reserved */
340 SIVAL(vwv + 1, 1, state->num_param);
341 SIVAL(vwv + 3, 1, state->num_data);
342 SIVAL(vwv + 5, 1, state->rparam.max);
343 SIVAL(vwv + 7, 1, state->rdata.max);
344 SIVAL(vwv + 9, 1, this_param);
345 SIVAL(vwv +11, 1, param_offset);
346 SIVAL(vwv +13, 1, this_data);
347 SIVAL(vwv +15, 1, data_offset);
348 SCVAL(vwv +17, 1, state->num_setup);
349 SSVAL(vwv +18, 0, state->function);
350 memcpy(vwv + 19, state->setup,
351 sizeof(uint16_t) * state->num_setup);
352 break;
353 case SMBnttranss:
354 SSVAL(vwv + 0, 0, 0); /* reserved */
355 SCVAL(vwv + 1, 0, 0); /* reserved */
356 SIVAL(vwv + 1, 1, state->num_param);
357 SIVAL(vwv + 3, 1, state->num_data);
358 SIVAL(vwv + 5, 1, this_param);
359 SIVAL(vwv + 7, 1, param_offset);
360 SIVAL(vwv + 9, 1, state->param_sent);
361 SIVAL(vwv +11, 1, this_data);
362 SIVAL(vwv +13, 1, data_offset);
363 SIVAL(vwv +15, 1, state->data_sent);
364 SCVAL(vwv +17, 1, 0); /* reserved */
365 break;
366 }
367
368 state->param_sent += this_param;
369 state->data_sent += this_data;
370
371 *pwct = wct;
372 *piov_count = iov - state->iov;
373 }
374
375 static void cli_trans_done(struct tevent_req *subreq);
376
377 struct tevent_req *cli_trans_send(
378 TALLOC_CTX *mem_ctx, struct tevent_context *ev,
379 struct cli_state *cli, uint8_t cmd,
380 const char *pipe_name, uint16_t fid, uint16_t function, int flags,
381 uint16_t *setup, uint8_t num_setup, uint8_t max_setup,
382 uint8_t *param, uint32_t num_param, uint32_t max_param,
383 uint8_t *data, uint32_t num_data, uint32_t max_data)
384 {
385 struct tevent_req *req, *subreq;
386 struct cli_trans_state *state;
387 int iov_count;
388 uint8_t wct;
389 NTSTATUS status;
390
391 req = tevent_req_create(mem_ctx, &state, struct cli_trans_state);
392 if (req == NULL) {
393 return NULL;
394 }
395
396 if ((cmd == SMBtrans) || (cmd == SMBtrans2)) {
397 if ((num_param > 0xffff) || (max_param > 0xffff)
398 || (num_data > 0xffff) || (max_data > 0xffff)) {
399 DEBUG(3, ("Attempt to send invalid trans2 request "
400 "(setup %u, params %u/%u, data %u/%u)\n",
401 (unsigned)num_setup,
402 (unsigned)num_param, (unsigned)max_param,
403 (unsigned)num_data, (unsigned)max_data));
404 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
405 return tevent_req_post(req, ev);
406 }
407 }
408
409 /*
410 * The largest wct will be for nttrans (19+num_setup). Make sure we
411 * don't overflow state->vwv in cli_trans_format.
412 */
413
414 if ((num_setup + 19) > ARRAY_SIZE(state->vwv)) {
415 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
416 return tevent_req_post(req, ev);
417 }
418
419 state->cli = cli;
420 state->ev = ev;
421 state->cmd = cmd;
422 state->flags = flags;
423 state->num_rsetup = 0;
424 state->rsetup = NULL;
425 ZERO_STRUCT(state->rparam);
426 ZERO_STRUCT(state->rdata);
427
428 if ((pipe_name != NULL)
429 && (!convert_string_talloc(state, CH_UNIX,
430 cli_ucs2(cli) ? CH_UTF16LE : CH_DOS,
431 pipe_name, strlen(pipe_name) + 1,
432 &state->pipe_name_conv,
433 &state->pipe_name_conv_len))) {
434 tevent_req_nterror(req, NT_STATUS_NO_MEMORY);
435 return tevent_req_post(req, ev);
436 }
437 state->fid = fid; /* trans2 */
438 state->function = function; /* nttrans */
439
440 state->setup = setup;
441 state->num_setup = num_setup;
442 state->max_setup = max_setup;
443
444 state->param = param;
445 state->num_param = num_param;
446 state->param_sent = 0;
447 state->rparam.max = max_param;
448
449 state->data = data;
450 state->num_data = num_data;
451 state->data_sent = 0;
452 state->rdata.max = max_data;
453
454 cli_trans_format(state, &wct, &iov_count);
455
456 subreq = cli_smb_req_create(state, ev, cli, cmd, 0, wct, state->vwv,
457 iov_count, state->iov);
458 if (tevent_req_nomem(subreq, req)) {
459 return tevent_req_post(req, ev);
460 }
461 status = cli_smb_req_send(subreq);
462 if (!NT_STATUS_IS_OK(status)) {
463 tevent_req_nterror(req, status);
464 return tevent_req_post(req, state->ev);
465 }
466 tevent_req_set_callback(subreq, cli_trans_done, req);
467
468 /*
469 * Now get the MID of the primary request
470 * and mark it as persistent. This means
471 * we will able to send and receive multiple
472 * SMB pdus using this MID in both directions
473 * (including correct SMB signing).
474 */
475 state->mid = cli_smb_req_mid(subreq);
476 cli_smb_req_set_mid(subreq, state->mid);
477 state->primary_subreq = subreq;
478 talloc_set_destructor(state, cli_trans_state_destructor);
479
480 return req;
481 }
482
483 static void cli_trans_done2(struct tevent_req *subreq);
484
485 static void cli_trans_done(struct tevent_req *subreq)
486 {
487 struct tevent_req *req = tevent_req_callback_data(
488 subreq, struct tevent_req);
489 struct cli_trans_state *state = tevent_req_data(
490 req, struct cli_trans_state);
491 NTSTATUS status;
492 bool sent_all;
493 const uint8_t *inhdr;
494 uint8_t wct;
495 uint16_t *vwv;
496 uint32_t num_bytes;
497 uint8_t *bytes;
498 uint8_t *inbuf;
499 uint8_t num_setup = 0;
500 uint16_t *setup = NULL;
501 uint32_t total_param = 0;
502 uint32_t num_param = 0;
503 uint32_t param_disp = 0;
504 uint32_t total_data = 0;
505 uint32_t num_data = 0;
506 uint32_t data_disp = 0;
507 uint8_t *param = NULL;
508 uint8_t *data = NULL;
509
510 status = cli_smb_recv(subreq, state, &inbuf, 0, &wct, &vwv,
511 &num_bytes, &bytes);
512 /*
513 * Do not TALLOC_FREE(subreq) here, we might receive more than
514 * one response for the same mid.
515 */
516
517 /*
518 * We can receive something like STATUS_MORE_ENTRIES, so don't use
519 * !NT_STATUS_IS_OK(status) here.
520 */
521
522 if (NT_STATUS_IS_ERR(status)) {
523 goto fail;
524 }
525 inhdr = inbuf + NBT_HDR_SIZE;
526
527 sent_all = ((state->param_sent == state->num_param)
528 && (state->data_sent == state->num_data));
529
530 status = cli_pull_trans(
531 inbuf, wct, vwv, num_bytes, bytes,
532 state->cmd, !sent_all, &num_setup, &setup,
533 &total_param, &num_param, &param_disp, &param,
534 &total_data, &num_data, &data_disp, &data);
535
536 if (!NT_STATUS_IS_OK(status)) {
537 goto fail;
538 }
539
540 if (!sent_all) {
541 int iov_count;
542 struct tevent_req *subreq2;
543
544 cli_trans_format(state, &wct, &iov_count);
545
546 subreq2 = cli_smb_req_create(state, state->ev, state->cli,
547 state->cmd + 1, 0, wct, state->vwv,
548 iov_count, state->iov);
549 if (tevent_req_nomem(subreq2, req)) {
550 return;
551 }
552 cli_smb_req_set_mid(subreq2, state->mid);
553
554 status = cli_smb_req_send(subreq2);
555
556 if (!NT_STATUS_IS_OK(status)) {
557 goto fail;
558 }
559 tevent_req_set_callback(subreq2, cli_trans_done2, req);
560
561 return;
562 }
563
564 status = cli_trans_pull_blob(
565 state, &state->rparam, total_param, num_param, param,
566 param_disp);
567
568 if (!NT_STATUS_IS_OK(status)) {
569 DEBUG(10, ("Pulling params failed: %s\n", nt_errstr(status)));
570 goto fail;
571 }
572
573 status = cli_trans_pull_blob(
574 state, &state->rdata, total_data, num_data, data,
575 data_disp);
576
577 if (!NT_STATUS_IS_OK(status)) {
578 DEBUG(10, ("Pulling data failed: %s\n", nt_errstr(status)));
579 goto fail;
580 }
581
582 if ((state->rparam.total == state->rparam.received)
583 && (state->rdata.total == state->rdata.received)) {
584 state->recv_flags2 = SVAL(inhdr, HDR_FLG2);
585 cli_trans_cleanup_primary(state);
586 tevent_req_done(req);
587 return;
588 }
589
590 TALLOC_FREE(inbuf);
591
592 return;
593
594 fail:
595 cli_trans_cleanup_primary(state);
596 tevent_req_nterror(req, status);
597 }
598
599 static void cli_trans_done2(struct tevent_req *subreq2)
600 {
601 struct tevent_req *req = tevent_req_callback_data(
602 subreq2, struct tevent_req);
603 struct cli_trans_state *state = tevent_req_data(
604 req, struct cli_trans_state);
605 NTSTATUS status;
606 bool sent_all;
607 uint8_t wct;
608 uint32_t seqnum;
609
610 /*
611 * First backup the seqnum of the secondary request
612 * and attach it to the primary request.
613 */
614 seqnum = cli_smb_req_seqnum(subreq2);
615 cli_smb_req_set_seqnum(state->primary_subreq, seqnum);
616
617 status = cli_smb_recv(subreq2, state, NULL, 0, &wct, NULL,
618 NULL, NULL);
619 TALLOC_FREE(subreq2);
620
621 if (!NT_STATUS_IS_OK(status)) {
622 goto fail;
623 }
624
625 if (wct != 0) {
626 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
627 goto fail;
628 }
629
630 sent_all = ((state->param_sent == state->num_param)
631 && (state->data_sent == state->num_data));
632
633 if (!sent_all) {
634 int iov_count;
635
636 cli_trans_format(state, &wct, &iov_count);
637
638 subreq2 = cli_smb_req_create(state, state->ev, state->cli,
639 state->cmd + 1, 0, wct, state->vwv,
640 iov_count, state->iov);
641 if (tevent_req_nomem(subreq2, req)) {
642 return;
643 }
644 cli_smb_req_set_mid(subreq2, state->mid);
645
646 status = cli_smb_req_send(subreq2);
647
648 if (!NT_STATUS_IS_OK(status)) {
649 goto fail;
650 }
651 tevent_req_set_callback(subreq2, cli_trans_done2, req);
652 return;
653 }
654
655 return;
656
657 fail:
658 cli_trans_cleanup_primary(state);
659 tevent_req_nterror(req, status);
660 }
661
662 NTSTATUS cli_trans_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
663 uint16_t *recv_flags2,
664 uint16_t **setup, uint8_t min_setup,
665 uint8_t *num_setup,
666 uint8_t **param, uint32_t min_param,
667 uint32_t *num_param,
668 uint8_t **data, uint32_t min_data,
669 uint32_t *num_data)
670 {
671 struct cli_trans_state *state = tevent_req_data(
672 req, struct cli_trans_state);
673 NTSTATUS status;
674
675 cli_trans_cleanup_primary(state);
676
677 if (tevent_req_is_nterror(req, &status)) {
678 return status;
679 }
680
681 if ((state->num_rsetup < min_setup)
682 || (state->rparam.total < min_param)
683 || (state->rdata.total < min_data)) {
684 return NT_STATUS_INVALID_NETWORK_RESPONSE;
685 }
686
687 if (recv_flags2 != NULL) {
688 *recv_flags2 = state->recv_flags2;
689 }
690
691 if (setup != NULL) {
692 *setup = talloc_move(mem_ctx, &state->rsetup);
693 *num_setup = state->num_rsetup;
694 } else {
695 TALLOC_FREE(state->rsetup);
696 }
697
698 if (param != NULL) {
699 *param = talloc_move(mem_ctx, &state->rparam.data);
700 *num_param = state->rparam.total;
701 } else {
702 TALLOC_FREE(state->rparam.data);
703 }
704
705 if (data != NULL) {
706 *data = talloc_move(mem_ctx, &state->rdata.data);
707 *num_data = state->rdata.total;
708 } else {
709 TALLOC_FREE(state->rdata.data);
710 }
711
712 return NT_STATUS_OK;
713 }
714
715 NTSTATUS cli_trans(TALLOC_CTX *mem_ctx, struct cli_state *cli,
716 uint8_t trans_cmd,
717 const char *pipe_name, uint16_t fid, uint16_t function,
718 int flags,
719 uint16_t *setup, uint8_t num_setup, uint8_t max_setup,
720 uint8_t *param, uint32_t num_param, uint32_t max_param,
721 uint8_t *data, uint32_t num_data, uint32_t max_data,
722 uint16_t *recv_flags2,
723 uint16_t **rsetup, uint8_t min_rsetup, uint8_t *num_rsetup,
724 uint8_t **rparam, uint32_t min_rparam, uint32_t *num_rparam,
725 uint8_t **rdata, uint32_t min_rdata, uint32_t *num_rdata)
726 {
727 TALLOC_CTX *frame = talloc_stackframe();
728 struct tevent_context *ev;
729 struct tevent_req *req;
730 NTSTATUS status = NT_STATUS_OK;
731
732 if (cli_has_async_calls(cli)) {
733 /*
734 * Can't use sync call while an async call is in flight
735 */
736 status = NT_STATUS_INVALID_PARAMETER;
737 goto fail;
738 }
739
740 ev = tevent_context_init(frame);
741 if (ev == NULL) {
742 status = NT_STATUS_NO_MEMORY;
743 goto fail;
744 }
745
746 req = cli_trans_send(frame, ev, cli, trans_cmd,
747 pipe_name, fid, function, flags,
748 setup, num_setup, max_setup,
749 param, num_param, max_param,
750 data, num_data, max_data);
751 if (req == NULL) {
752 status = NT_STATUS_NO_MEMORY;
753 goto fail;
754 }
755
756 if (!tevent_req_poll(req, ev)) {
757 status = map_nt_error_from_unix_common(errno);
758 goto fail;
759 }
760
761 status = cli_trans_recv(req, mem_ctx, recv_flags2,
762 rsetup, min_rsetup, num_rsetup,
763 rparam, min_rparam, num_rparam,
764 rdata, min_rdata, num_rdata);
765 fail:
766 TALLOC_FREE(frame);
767 return status;
768 }
WIP