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s3:libsmb: s/\<event_context/tevent_context/gc in smb2cli_session.c
[Samba/vl.git] / libcli / smb / smb1cli_trans.c
blobfadac8e7b4a3f1afa82b148be81b567b49f53d83
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 "system/network.h"
22 #include "../lib/util/tevent_ntstatus.h"
23 #include "../libcli/smb/smb_common.h"
24 #include "../libcli/smb/smbXcli_base.h"
25
26 struct trans_recvblob {
27 uint8_t *data;
28 uint32_t max, total, received;
29 };
30
31 struct smb1cli_trans_state {
32 struct smbXcli_conn *conn;
33 struct tevent_context *ev;
34 uint8_t cmd;
35 uint8_t additional_flags;
36 uint8_t clear_flags;
37 uint16_t additional_flags2;
38 uint16_t clear_flags2;
39 uint32_t timeout_msec;
40 uint16_t mid;
41 uint32_t pid;
42 uint16_t tid;
43 uint16_t uid;
44 const char *pipe_name;
45 uint8_t *pipe_name_conv;
46 size_t pipe_name_conv_len;
47 uint16_t fid;
48 uint16_t function;
49 int flags;
50 uint16_t *setup;
51 uint8_t num_setup, max_setup;
52 uint8_t *param;
53 uint32_t num_param, param_sent;
54 uint8_t *data;
55 uint32_t num_data, data_sent;
56
57 uint8_t num_rsetup;
58 uint16_t *rsetup;
59 struct trans_recvblob rparam;
60 struct trans_recvblob rdata;
61 uint16_t recv_flags2;
62
63 struct iovec iov[6];
64 uint8_t pad[4];
65 uint8_t zero_pad[4];
66 uint16_t vwv[32];
67
68 NTSTATUS status;
69
70 struct tevent_req *primary_subreq;
71 };
72
73 static void smb1cli_trans_cleanup_primary(struct smb1cli_trans_state *state)
74 {
75 if (state->primary_subreq) {
76 smb1cli_req_set_mid(state->primary_subreq, 0);
77 smbXcli_req_unset_pending(state->primary_subreq);
78 TALLOC_FREE(state->primary_subreq);
79 }
80 }
81
82 static int smb1cli_trans_state_destructor(struct smb1cli_trans_state *state)
83 {
84 smb1cli_trans_cleanup_primary(state);
85 return 0;
86 }
87
88 static NTSTATUS smb1cli_pull_trans(uint8_t *inhdr,
89 uint8_t wct,
90 uint16_t *vwv,
91 uint32_t vwv_ofs,
92 uint32_t num_bytes,
93 uint8_t *bytes,
94 uint32_t bytes_ofs,
95 uint8_t smb_cmd, bool expect_first_reply,
96 uint8_t *pnum_setup, uint16_t **psetup,
97 uint32_t *ptotal_param, uint32_t *pnum_param,
98 uint32_t *pparam_disp, uint8_t **pparam,
99 uint32_t *ptotal_data, uint32_t *pnum_data,
100 uint32_t *pdata_disp, uint8_t **pdata)
101 {
102 uint32_t param_ofs, data_ofs;
103 uint8_t expected_num_setup;
104 uint32_t max_bytes = UINT32_MAX - bytes_ofs;
105 uint32_t bytes_end;
106
107 if (num_bytes > max_bytes) {
108 return NT_STATUS_INVALID_NETWORK_RESPONSE;
109 }
110
111 bytes_end = bytes_ofs + num_bytes;
112
113 if (expect_first_reply) {
114 if ((wct != 0) || (num_bytes != 0)) {
115 return NT_STATUS_INVALID_NETWORK_RESPONSE;
116 }
117 return NT_STATUS_OK;
118 }
119
120 switch (smb_cmd) {
121 case SMBtrans:
122 case SMBtrans2:
123 if (wct < 10) {
124 return NT_STATUS_INVALID_NETWORK_RESPONSE;
125 }
126 expected_num_setup = wct - 10;
127 *ptotal_param = SVAL(vwv + 0, 0);
128 *ptotal_data = SVAL(vwv + 1, 0);
129 *pnum_param = SVAL(vwv + 3, 0);
130 param_ofs = SVAL(vwv + 4, 0);
131 *pparam_disp = SVAL(vwv + 5, 0);
132 *pnum_data = SVAL(vwv + 6, 0);
133 data_ofs = SVAL(vwv + 7, 0);
134 *pdata_disp = SVAL(vwv + 8, 0);
135 *pnum_setup = CVAL(vwv + 9, 0);
136 if (expected_num_setup < (*pnum_setup)) {
137 return NT_STATUS_INVALID_NETWORK_RESPONSE;
138 }
139 *psetup = vwv + 10;
140
141 break;
142 case SMBnttrans:
143 if (wct < 18) {
144 return NT_STATUS_INVALID_NETWORK_RESPONSE;
145 }
146 expected_num_setup = wct - 18;
147 *ptotal_param = IVAL(vwv, 3);
148 *ptotal_data = IVAL(vwv, 7);
149 *pnum_param = IVAL(vwv, 11);
150 param_ofs = IVAL(vwv, 15);
151 *pparam_disp = IVAL(vwv, 19);
152 *pnum_data = IVAL(vwv, 23);
153 data_ofs = IVAL(vwv, 27);
154 *pdata_disp = IVAL(vwv, 31);
155 *pnum_setup = CVAL(vwv, 35);
156 if (expected_num_setup < (*pnum_setup)) {
157 return NT_STATUS_INVALID_NETWORK_RESPONSE;
158 }
159 *psetup = vwv + 18;
160 break;
161
162 default:
163 return NT_STATUS_INTERNAL_ERROR;
164 }
165
166 /*
167 * Check for buffer overflows. data_ofs needs to be checked against
168 * the incoming buffer length, data_disp against the total
169 * length. Likewise for param_ofs/param_disp.
170 */
171
172 if (smb_buffer_oob(bytes_end, param_ofs, *pnum_param)
173 || smb_buffer_oob(*ptotal_param, *pparam_disp, *pnum_param)
174 || smb_buffer_oob(bytes_end, data_ofs, *pnum_data)
175 || smb_buffer_oob(*ptotal_data, *pdata_disp, *pnum_data)) {
176 return NT_STATUS_INVALID_NETWORK_RESPONSE;
177 }
178
179 *pparam = (uint8_t *)inhdr + param_ofs;
180 *pdata = (uint8_t *)inhdr + data_ofs;
181
182 return NT_STATUS_OK;
183 }
184
185 static NTSTATUS smb1cli_trans_pull_blob(TALLOC_CTX *mem_ctx,
186 struct trans_recvblob *blob,
187 uint32_t total, uint32_t thistime,
188 uint8_t *buf, uint32_t displacement)
189 {
190 if (blob->data == NULL) {
191 if (total > blob->max) {
192 return NT_STATUS_INVALID_NETWORK_RESPONSE;
193 }
194 blob->total = total;
195 blob->data = talloc_array(mem_ctx, uint8_t, total);
196 if (blob->data == NULL) {
197 return NT_STATUS_NO_MEMORY;
198 }
199 }
200
201 if (total > blob->total) {
202 return NT_STATUS_INVALID_NETWORK_RESPONSE;
203 }
204
205 if (thistime) {
206 memcpy(blob->data + displacement, buf, thistime);
207 blob->received += thistime;
208 }
209
210 return NT_STATUS_OK;
211 }
212
213 static void smb1cli_trans_format(struct smb1cli_trans_state *state,
214 uint8_t *pwct,
215 int *piov_count)
216 {
217 uint8_t wct = 0;
218 struct iovec *iov = state->iov;
219 uint8_t *pad = state->pad;
220 uint16_t *vwv = state->vwv;
221 uint32_t param_offset;
222 uint32_t this_param = 0;
223 uint32_t param_pad;
224 uint32_t data_offset;
225 uint32_t this_data = 0;
226 uint32_t data_pad;
227 uint32_t useable_space;
228 uint8_t cmd;
229 uint32_t max_trans = smb1cli_conn_max_xmit(state->conn);
230
231 cmd = state->cmd;
232
233 if ((state->param_sent != 0) || (state->data_sent != 0)) {
234 /* The secondary commands are one after the primary ones */
235 cmd += 1;
236 }
237
238 param_offset = MIN_SMB_SIZE;
239
240 switch (cmd) {
241 case SMBtrans:
242 if (smbXcli_conn_use_unicode(state->conn)) {
243 pad[0] = 0;
244 iov[0].iov_base = (void *)pad;
245 iov[0].iov_len = 1;
246 param_offset += 1;
247 iov += 1;
248 }
249 iov[0].iov_base = (void *)state->pipe_name_conv;
250 iov[0].iov_len = state->pipe_name_conv_len;
251 wct = 14 + state->num_setup;
252 param_offset += iov[0].iov_len;
253 iov += 1;
254 break;
255 case SMBtrans2:
256 pad[0] = 0;
257 pad[1] = 'D'; /* Copy this from "old" 3.0 behaviour */
258 pad[2] = ' ';
259 iov[0].iov_base = (void *)pad;
260 iov[0].iov_len = 3;
261 wct = 14 + state->num_setup;
262 param_offset += 3;
263 iov += 1;
264 break;
265 case SMBtranss:
266 wct = 8;
267 break;
268 case SMBtranss2:
269 wct = 9;
270 break;
271 case SMBnttrans:
272 wct = 19 + state->num_setup;
273 break;
274 case SMBnttranss:
275 wct = 18;
276 break;
277 }
278
279 param_offset += wct * sizeof(uint16_t);
280 useable_space = max_trans - param_offset;
281
282 param_pad = param_offset % 4;
283 if (param_pad > 0) {
284 param_pad = MIN(param_pad, useable_space);
285 iov[0].iov_base = (void *)state->zero_pad;
286 iov[0].iov_len = param_pad;
287 iov += 1;
288 param_offset += param_pad;
289 }
290 useable_space = max_trans - param_offset;
291
292 if (state->param_sent < state->num_param) {
293 this_param = MIN(state->num_param - state->param_sent,
294 useable_space);
295 iov[0].iov_base = (void *)(state->param + state->param_sent);
296 iov[0].iov_len = this_param;
297 iov += 1;
298 }
299
300 data_offset = param_offset + this_param;
301 useable_space = max_trans - data_offset;
302
303 data_pad = data_offset % 4;
304 if (data_pad > 0) {
305 data_pad = MIN(data_pad, useable_space);
306 iov[0].iov_base = (void *)state->zero_pad;
307 iov[0].iov_len = data_pad;
308 iov += 1;
309 data_offset += data_pad;
310 }
311 useable_space = max_trans - data_offset;
312
313 if (state->data_sent < state->num_data) {
314 this_data = MIN(state->num_data - state->data_sent,
315 useable_space);
316 iov[0].iov_base = (void *)(state->data + state->data_sent);
317 iov[0].iov_len = this_data;
318 iov += 1;
319 }
320
321 DEBUG(10, ("num_setup=%u, max_setup=%u, "
322 "param_total=%u, this_param=%u, max_param=%u, "
323 "data_total=%u, this_data=%u, max_data=%u, "
324 "param_offset=%u, param_pad=%u, param_disp=%u, "
325 "data_offset=%u, data_pad=%u, data_disp=%u\n",
326 (unsigned)state->num_setup, (unsigned)state->max_setup,
327 (unsigned)state->num_param, (unsigned)this_param,
328 (unsigned)state->rparam.max,
329 (unsigned)state->num_data, (unsigned)this_data,
330 (unsigned)state->rdata.max,
331 (unsigned)param_offset, (unsigned)param_pad,
332 (unsigned)state->param_sent,
333 (unsigned)data_offset, (unsigned)data_pad,
334 (unsigned)state->data_sent));
335
336 switch (cmd) {
337 case SMBtrans:
338 case SMBtrans2:
339 SSVAL(vwv + 0, 0, state->num_param);
340 SSVAL(vwv + 1, 0, state->num_data);
341 SSVAL(vwv + 2, 0, state->rparam.max);
342 SSVAL(vwv + 3, 0, state->rdata.max);
343 SCVAL(vwv + 4, 0, state->max_setup);
344 SCVAL(vwv + 4, 1, 0); /* reserved */
345 SSVAL(vwv + 5, 0, state->flags);
346 SIVAL(vwv + 6, 0, 0); /* timeout */
347 SSVAL(vwv + 8, 0, 0); /* reserved */
348 SSVAL(vwv + 9, 0, this_param);
349 SSVAL(vwv +10, 0, param_offset);
350 SSVAL(vwv +11, 0, this_data);
351 SSVAL(vwv +12, 0, data_offset);
352 SCVAL(vwv +13, 0, state->num_setup);
353 SCVAL(vwv +13, 1, 0); /* reserved */
354 memcpy(vwv + 14, state->setup,
355 sizeof(uint16_t) * state->num_setup);
356 break;
357 case SMBtranss:
358 case SMBtranss2:
359 SSVAL(vwv + 0, 0, state->num_param);
360 SSVAL(vwv + 1, 0, state->num_data);
361 SSVAL(vwv + 2, 0, this_param);
362 SSVAL(vwv + 3, 0, param_offset);
363 SSVAL(vwv + 4, 0, state->param_sent);
364 SSVAL(vwv + 5, 0, this_data);
365 SSVAL(vwv + 6, 0, data_offset);
366 SSVAL(vwv + 7, 0, state->data_sent);
367 if (cmd == SMBtranss2) {
368 SSVAL(vwv + 8, 0, state->fid);
369 }
370 break;
371 case SMBnttrans:
372 SCVAL(vwv + 0, 0, state->max_setup);
373 SSVAL(vwv + 0, 1, 0); /* reserved */
374 SIVAL(vwv + 1, 1, state->num_param);
375 SIVAL(vwv + 3, 1, state->num_data);
376 SIVAL(vwv + 5, 1, state->rparam.max);
377 SIVAL(vwv + 7, 1, state->rdata.max);
378 SIVAL(vwv + 9, 1, this_param);
379 SIVAL(vwv +11, 1, param_offset);
380 SIVAL(vwv +13, 1, this_data);
381 SIVAL(vwv +15, 1, data_offset);
382 SCVAL(vwv +17, 1, state->num_setup);
383 SSVAL(vwv +18, 0, state->function);
384 memcpy(vwv + 19, state->setup,
385 sizeof(uint16_t) * state->num_setup);
386 break;
387 case SMBnttranss:
388 SSVAL(vwv + 0, 0, 0); /* reserved */
389 SCVAL(vwv + 1, 0, 0); /* reserved */
390 SIVAL(vwv + 1, 1, state->num_param);
391 SIVAL(vwv + 3, 1, state->num_data);
392 SIVAL(vwv + 5, 1, this_param);
393 SIVAL(vwv + 7, 1, param_offset);
394 SIVAL(vwv + 9, 1, state->param_sent);
395 SIVAL(vwv +11, 1, this_data);
396 SIVAL(vwv +13, 1, data_offset);
397 SIVAL(vwv +15, 1, state->data_sent);
398 SCVAL(vwv +17, 1, 0); /* reserved */
399 break;
400 }
401
402 state->param_sent += this_param;
403 state->data_sent += this_data;
404
405 *pwct = wct;
406 *piov_count = iov - state->iov;
407 }
408
409 static bool smb1cli_trans_cancel(struct tevent_req *req);
410 static void smb1cli_trans_done(struct tevent_req *subreq);
411
412 struct tevent_req *smb1cli_trans_send(
413 TALLOC_CTX *mem_ctx, struct tevent_context *ev,
414 struct smbXcli_conn *conn, uint8_t cmd,
415 uint8_t additional_flags, uint8_t clear_flags,
416 uint16_t additional_flags2, uint16_t clear_flags2,
417 uint32_t timeout_msec,
418 uint32_t pid, uint16_t tid, uint16_t uid,
419 const char *pipe_name, uint16_t fid, uint16_t function, int flags,
420 uint16_t *setup, uint8_t num_setup, uint8_t max_setup,
421 uint8_t *param, uint32_t num_param, uint32_t max_param,
422 uint8_t *data, uint32_t num_data, uint32_t max_data)
423 {
424 struct tevent_req *req, *subreq;
425 struct smb1cli_trans_state *state;
426 int iov_count;
427 uint8_t wct;
428 NTSTATUS status;
429 charset_t charset;
430
431 req = tevent_req_create(mem_ctx, &state,
432 struct smb1cli_trans_state);
433 if (req == NULL) {
434 return NULL;
435 }
436
437 if ((cmd == SMBtrans) || (cmd == SMBtrans2)) {
438 if ((num_param > 0xffff) || (max_param > 0xffff)
439 || (num_data > 0xffff) || (max_data > 0xffff)) {
440 DEBUG(3, ("Attempt to send invalid trans2 request "
441 "(setup %u, params %u/%u, data %u/%u)\n",
442 (unsigned)num_setup,
443 (unsigned)num_param, (unsigned)max_param,
444 (unsigned)num_data, (unsigned)max_data));
445 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER_MIX);
446 return tevent_req_post(req, ev);
447 }
448 }
449
450 /*
451 * The largest wct will be for nttrans (19+num_setup). Make sure we
452 * don't overflow state->vwv in smb1cli_trans_format.
453 */
454
455 if ((num_setup + 19) > ARRAY_SIZE(state->vwv)) {
456 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER_MIX);
457 return tevent_req_post(req, ev);
458 }
459
460 state->conn = conn;
461 state->ev = ev;
462 state->cmd = cmd;
463 state->additional_flags = additional_flags;
464 state->clear_flags = clear_flags;
465 state->additional_flags2 = additional_flags2;
466 state->clear_flags2 = clear_flags2;
467 state->timeout_msec = timeout_msec;
468 state->flags = flags;
469 state->num_rsetup = 0;
470 state->rsetup = NULL;
471 state->pid = pid;
472 state->tid = tid;
473 state->uid = uid;
474 ZERO_STRUCT(state->rparam);
475 ZERO_STRUCT(state->rdata);
476
477 if (smbXcli_conn_use_unicode(conn)) {
478 charset = CH_UTF16LE;
479 } else {
480 charset = CH_DOS;
481 }
482
483 if ((pipe_name != NULL)
484 && (!convert_string_talloc(state, CH_UNIX, charset,
485 pipe_name, strlen(pipe_name) + 1,
486 &state->pipe_name_conv,
487 &state->pipe_name_conv_len))) {
488 tevent_req_nterror(req, NT_STATUS_NO_MEMORY);
489 return tevent_req_post(req, ev);
490 }
491 state->fid = fid; /* trans2 */
492 state->function = function; /* nttrans */
493
494 state->setup = setup;
495 state->num_setup = num_setup;
496 state->max_setup = max_setup;
497
498 state->param = param;
499 state->num_param = num_param;
500 state->param_sent = 0;
501 state->rparam.max = max_param;
502
503 state->data = data;
504 state->num_data = num_data;
505 state->data_sent = 0;
506 state->rdata.max = max_data;
507
508 smb1cli_trans_format(state, &wct, &iov_count);
509
510 subreq = smb1cli_req_create(state, ev, conn, cmd,
511 state->additional_flags,
512 state->clear_flags,
513 state->additional_flags2,
514 state->clear_flags2,
515 state->timeout_msec,
516 state->pid, state->tid, state->uid,
517 wct, state->vwv,
518 iov_count, state->iov);
519 if (tevent_req_nomem(subreq, req)) {
520 return tevent_req_post(req, ev);
521 }
522 status = smb1cli_req_chain_submit(&subreq, 1);
523 if (tevent_req_nterror(req, status)) {
524 return tevent_req_post(req, state->ev);
525 }
526 tevent_req_set_callback(subreq, smb1cli_trans_done, req);
527
528 /*
529 * Now get the MID of the primary request
530 * and mark it as persistent. This means
531 * we will able to send and receive multiple
532 * SMB pdus using this MID in both directions
533 * (including correct SMB signing).
534 */
535 state->mid = smb1cli_req_mid(subreq);
536 smb1cli_req_set_mid(subreq, state->mid);
537 state->primary_subreq = subreq;
538 talloc_set_destructor(state, smb1cli_trans_state_destructor);
539
540 tevent_req_set_cancel_fn(req, smb1cli_trans_cancel);
541
542 return req;
543 }
544
545 static bool smb1cli_trans_cancel(struct tevent_req *req)
546 {
547 struct smb1cli_trans_state *state =
548 tevent_req_data(req,
549 struct smb1cli_trans_state);
550
551 if (state->primary_subreq == NULL) {
552 return false;
553 }
554
555 return tevent_req_cancel(state->primary_subreq);
556 }
557
558 static void smb1cli_trans_done2(struct tevent_req *subreq);
559
560 static void smb1cli_trans_done(struct tevent_req *subreq)
561 {
562 struct tevent_req *req =
563 tevent_req_callback_data(subreq,
564 struct tevent_req);
565 struct smb1cli_trans_state *state =
566 tevent_req_data(req,
567 struct smb1cli_trans_state);
568 NTSTATUS status;
569 bool sent_all;
570 struct iovec *recv_iov = NULL;
571 uint8_t *inhdr;
572 uint8_t wct;
573 uint16_t *vwv;
574 uint32_t vwv_ofs;
575 uint32_t num_bytes;
576 uint8_t *bytes;
577 uint32_t bytes_ofs;
578 uint8_t num_setup = 0;
579 uint16_t *setup = NULL;
580 uint32_t total_param = 0;
581 uint32_t num_param = 0;
582 uint32_t param_disp = 0;
583 uint32_t total_data = 0;
584 uint32_t num_data = 0;
585 uint32_t data_disp = 0;
586 uint8_t *param = NULL;
587 uint8_t *data = NULL;
588
589 status = smb1cli_req_recv(subreq, state,
590 &recv_iov,
591 &inhdr,
592 &wct,
593 &vwv,
594 &vwv_ofs,
595 &num_bytes,
596 &bytes,
597 &bytes_ofs,
598 NULL, /* pinbuf */
599 NULL, 0); /* expected */
600 /*
601 * Do not TALLOC_FREE(subreq) here, we might receive more than
602 * one response for the same mid.
603 */
604
605 /*
606 * We can receive something like STATUS_MORE_ENTRIES, so don't use
607 * !NT_STATUS_IS_OK(status) here.
608 */
609
610 if (NT_STATUS_IS_ERR(status)) {
611 goto fail;
612 }
613
614 if (recv_iov == NULL) {
615 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
616 goto fail;
617 }
618 state->status = status;
619
620 sent_all = ((state->param_sent == state->num_param)
621 && (state->data_sent == state->num_data));
622
623 status = smb1cli_pull_trans(
624 inhdr, wct, vwv, vwv_ofs,
625 num_bytes, bytes, bytes_ofs,
626 state->cmd, !sent_all, &num_setup, &setup,
627 &total_param, &num_param, &param_disp, &param,
628 &total_data, &num_data, &data_disp, &data);
629
630 if (!NT_STATUS_IS_OK(status)) {
631 goto fail;
632 }
633
634 if (!sent_all) {
635 int iov_count;
636 struct tevent_req *subreq2;
637
638 smb1cli_trans_format(state, &wct, &iov_count);
639
640 subreq2 = smb1cli_req_create(state, state->ev, state->conn,
641 state->cmd + 1,
642 state->additional_flags,
643 state->clear_flags,
644 state->additional_flags2,
645 state->clear_flags2,
646 state->timeout_msec,
647 state->pid, state->tid, state->uid,
648 wct, state->vwv,
649 iov_count, state->iov);
650 if (tevent_req_nomem(subreq2, req)) {
651 return;
652 }
653 smb1cli_req_set_mid(subreq2, state->mid);
654
655 status = smb1cli_req_chain_submit(&subreq2, 1);
656
657 if (!NT_STATUS_IS_OK(status)) {
658 goto fail;
659 }
660 tevent_req_set_callback(subreq2, smb1cli_trans_done2, req);
661
662 return;
663 }
664
665 status = smb1cli_trans_pull_blob(
666 state, &state->rparam, total_param, num_param, param,
667 param_disp);
668
669 if (!NT_STATUS_IS_OK(status)) {
670 DEBUG(10, ("Pulling params failed: %s\n", nt_errstr(status)));
671 goto fail;
672 }
673
674 status = smb1cli_trans_pull_blob(
675 state, &state->rdata, total_data, num_data, data,
676 data_disp);
677
678 if (!NT_STATUS_IS_OK(status)) {
679 DEBUG(10, ("Pulling data failed: %s\n", nt_errstr(status)));
680 goto fail;
681 }
682
683 if ((state->rparam.total == state->rparam.received)
684 && (state->rdata.total == state->rdata.received)) {
685 state->recv_flags2 = SVAL(inhdr, HDR_FLG2);
686 smb1cli_trans_cleanup_primary(state);
687 tevent_req_done(req);
688 return;
689 }
690
691 TALLOC_FREE(recv_iov);
692
693 return;
694
695 fail:
696 smb1cli_trans_cleanup_primary(state);
697 tevent_req_nterror(req, status);
698 }
699
700 static void smb1cli_trans_done2(struct tevent_req *subreq2)
701 {
702 struct tevent_req *req =
703 tevent_req_callback_data(subreq2,
704 struct tevent_req);
705 struct smb1cli_trans_state *state =
706 tevent_req_data(req,
707 struct smb1cli_trans_state);
708 NTSTATUS status;
709 bool sent_all;
710 uint32_t seqnum;
711
712 /*
713 * First backup the seqnum of the secondary request
714 * and attach it to the primary request.
715 */
716 seqnum = smb1cli_req_seqnum(subreq2);
717 smb1cli_req_set_seqnum(state->primary_subreq, seqnum);
718
719 /* This was a one way request */
720 status = smb1cli_req_recv(subreq2, state,
721 NULL, /* recv_iov */
722 NULL, /* phdr */
723 NULL, /* pwct */
724 NULL, /* pvwv */
725 NULL, /* pvwv_offset */
726 NULL, /* pnum_bytes */
727 NULL, /* pbytes */
728 NULL, /* pbytes_offset */
729 NULL, /* pinbuf */
730 NULL, 0); /* expected */
731 TALLOC_FREE(subreq2);
732
733 if (!NT_STATUS_IS_OK(status)) {
734 goto fail;
735 }
736
737 sent_all = ((state->param_sent == state->num_param)
738 && (state->data_sent == state->num_data));
739
740 if (!sent_all) {
741 uint8_t wct;
742 int iov_count;
743
744 smb1cli_trans_format(state, &wct, &iov_count);
745
746 subreq2 = smb1cli_req_create(state, state->ev, state->conn,
747 state->cmd + 1,
748 state->additional_flags,
749 state->clear_flags,
750 state->additional_flags2,
751 state->clear_flags2,
752 state->timeout_msec,
753 state->pid, state->tid, state->uid,
754 wct, state->vwv,
755 iov_count, state->iov);
756 if (tevent_req_nomem(subreq2, req)) {
757 return;
758 }
759 smb1cli_req_set_mid(subreq2, state->mid);
760
761 status = smb1cli_req_chain_submit(&subreq2, 1);
762
763 if (!NT_STATUS_IS_OK(status)) {
764 goto fail;
765 }
766 tevent_req_set_callback(subreq2, smb1cli_trans_done2, req);
767 return;
768 }
769
770 return;
771
772 fail:
773 smb1cli_trans_cleanup_primary(state);
774 tevent_req_nterror(req, status);
775 }
776
777 NTSTATUS smb1cli_trans_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
778 uint16_t *recv_flags2,
779 uint16_t **setup, uint8_t min_setup,
780 uint8_t *num_setup,
781 uint8_t **param, uint32_t min_param,
782 uint32_t *num_param,
783 uint8_t **data, uint32_t min_data,
784 uint32_t *num_data)
785 {
786 struct smb1cli_trans_state *state =
787 tevent_req_data(req,
788 struct smb1cli_trans_state);
789 NTSTATUS status;
790
791 smb1cli_trans_cleanup_primary(state);
792
793 if (tevent_req_is_nterror(req, &status)) {
794 if (!NT_STATUS_IS_ERR(status)) {
795 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
796 }
797 tevent_req_received(req);
798 return status;
799 }
800
801 if ((state->num_rsetup < min_setup)
802 || (state->rparam.total < min_param)
803 || (state->rdata.total < min_data)) {
804 tevent_req_received(req);
805 return NT_STATUS_INVALID_NETWORK_RESPONSE;
806 }
807
808 if (recv_flags2 != NULL) {
809 *recv_flags2 = state->recv_flags2;
810 }
811
812 if (setup != NULL) {
813 *setup = talloc_move(mem_ctx, &state->rsetup);
814 *num_setup = state->num_rsetup;
815 } else {
816 TALLOC_FREE(state->rsetup);
817 }
818
819 if (param != NULL) {
820 *param = talloc_move(mem_ctx, &state->rparam.data);
821 *num_param = state->rparam.total;
822 } else {
823 TALLOC_FREE(state->rparam.data);
824 }
825
826 if (data != NULL) {
827 *data = talloc_move(mem_ctx, &state->rdata.data);
828 *num_data = state->rdata.total;
829 } else {
830 TALLOC_FREE(state->rdata.data);
831 }
832
833 status = state->status;
834 tevent_req_received(req);
835 return status;
836 }
837
838 NTSTATUS smb1cli_trans(TALLOC_CTX *mem_ctx, struct smbXcli_conn *conn,
839 uint8_t trans_cmd,
840 uint8_t additional_flags, uint8_t clear_flags,
841 uint16_t additional_flags2, uint16_t clear_flags2,
842 uint32_t timeout_msec,
843 uint32_t pid, uint16_t tid, uint16_t uid,
844 const char *pipe_name, uint16_t fid, uint16_t function,
845 int flags,
846 uint16_t *setup, uint8_t num_setup, uint8_t max_setup,
847 uint8_t *param, uint32_t num_param, uint32_t max_param,
848 uint8_t *data, uint32_t num_data, uint32_t max_data,
849 uint16_t *recv_flags2,
850 uint16_t **rsetup, uint8_t min_rsetup, uint8_t *num_rsetup,
851 uint8_t **rparam, uint32_t min_rparam, uint32_t *num_rparam,
852 uint8_t **rdata, uint32_t min_rdata, uint32_t *num_rdata)
853 {
854 TALLOC_CTX *frame = talloc_stackframe();
855 struct tevent_context *ev;
856 struct tevent_req *req;
857 NTSTATUS status = NT_STATUS_OK;
858
859 if (smbXcli_conn_has_async_calls(conn)) {
860 /*
861 * Can't use sync call while an async call is in flight
862 */
863 status = NT_STATUS_INVALID_PARAMETER_MIX;
864 goto fail;
865 }
866
867 ev = tevent_context_init(frame);
868 if (ev == NULL) {
869 status = NT_STATUS_NO_MEMORY;
870 goto fail;
871 }
872
873 req = smb1cli_trans_send(frame, ev, conn, trans_cmd,
874 additional_flags, clear_flags,
875 additional_flags2, clear_flags2,
876 timeout_msec,
877 pid, tid, uid,
878 pipe_name, fid, function, flags,
879 setup, num_setup, max_setup,
880 param, num_param, max_param,
881 data, num_data, max_data);
882 if (req == NULL) {
883 status = NT_STATUS_NO_MEMORY;
884 goto fail;
885 }
886
887 if (!tevent_req_poll(req, ev)) {
888 status = map_nt_error_from_unix_common(errno);
889 goto fail;
890 }
891
892 status = smb1cli_trans_recv(req, mem_ctx, recv_flags2,
893 rsetup, min_rsetup, num_rsetup,
894 rparam, min_rparam, num_rparam,
895 rdata, min_rdata, num_rdata);
896 fail:
897 TALLOC_FREE(frame);
898 return status;
899 }