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librpc: Shorten dcerpc_binding_handle_call a bit
[Samba/bjacke.git] / source3 / smbd / smb2_create.c
blob6a43d274ff8b5c7cba9fd450b548cb7ed10e0535
1 /*
2 Unix SMB/CIFS implementation.
3 Core SMB2 server
4
5 Copyright (C) Stefan Metzmacher 2009
6 Copyright (C) Jeremy Allison 2010
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
20 */
21
22 #include "includes.h"
23 #include "printing.h"
24 #include "smbd/smbd.h"
25 #include "smbd/globals.h"
26 #include "../libcli/smb/smb_common.h"
27 #include "../librpc/gen_ndr/ndr_security.h"
28 #include "../lib/util/tevent_ntstatus.h"
29 #include "messages.h"
30
31 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level)
32 {
33 switch(in_oplock_level) {
34 case SMB2_OPLOCK_LEVEL_NONE:
35 return NO_OPLOCK;
36 case SMB2_OPLOCK_LEVEL_II:
37 return LEVEL_II_OPLOCK;
38 case SMB2_OPLOCK_LEVEL_EXCLUSIVE:
39 return EXCLUSIVE_OPLOCK;
40 case SMB2_OPLOCK_LEVEL_BATCH:
41 return BATCH_OPLOCK;
42 case SMB2_OPLOCK_LEVEL_LEASE:
43 DEBUG(2,("map_smb2_oplock_levels_to_samba: "
44 "LEASE_OPLOCK_REQUESTED\n"));
45 return NO_OPLOCK;
46 default:
47 DEBUG(2,("map_smb2_oplock_levels_to_samba: "
48 "unknown level %u\n",
49 (unsigned int)in_oplock_level));
50 return NO_OPLOCK;
51 }
52 }
53
54 static uint8_t map_samba_oplock_levels_to_smb2(int oplock_type)
55 {
56 if (BATCH_OPLOCK_TYPE(oplock_type)) {
57 return SMB2_OPLOCK_LEVEL_BATCH;
58 } else if (EXCLUSIVE_OPLOCK_TYPE(oplock_type)) {
59 return SMB2_OPLOCK_LEVEL_EXCLUSIVE;
60 } else if (oplock_type == LEVEL_II_OPLOCK) {
61 /*
62 * Don't use LEVEL_II_OPLOCK_TYPE here as
63 * this also includes FAKE_LEVEL_II_OPLOCKs
64 * which are internal only.
65 */
66 return SMB2_OPLOCK_LEVEL_II;
67 } else {
68 return SMB2_OPLOCK_LEVEL_NONE;
69 }
70 }
71
72 static struct tevent_req *smbd_smb2_create_send(TALLOC_CTX *mem_ctx,
73 struct tevent_context *ev,
74 struct smbd_smb2_request *smb2req,
75 uint8_t in_oplock_level,
76 uint32_t in_impersonation_level,
77 uint32_t in_desired_access,
78 uint32_t in_file_attributes,
79 uint32_t in_share_access,
80 uint32_t in_create_disposition,
81 uint32_t in_create_options,
82 const char *in_name,
83 struct smb2_create_blobs in_context_blobs);
84 static NTSTATUS smbd_smb2_create_recv(struct tevent_req *req,
85 TALLOC_CTX *mem_ctx,
86 uint8_t *out_oplock_level,
87 uint32_t *out_create_action,
88 NTTIME *out_creation_time,
89 NTTIME *out_last_access_time,
90 NTTIME *out_last_write_time,
91 NTTIME *out_change_time,
92 uint64_t *out_allocation_size,
93 uint64_t *out_end_of_file,
94 uint32_t *out_file_attributes,
95 uint64_t *out_file_id_persistent,
96 uint64_t *out_file_id_volatile,
97 struct smb2_create_blobs *out_context_blobs);
98
99 static void smbd_smb2_request_create_done(struct tevent_req *tsubreq);
100 NTSTATUS smbd_smb2_request_process_create(struct smbd_smb2_request *smb2req)
101 {
102 const uint8_t *inbody;
103 const struct iovec *indyniov;
104 uint8_t in_oplock_level;
105 uint32_t in_impersonation_level;
106 uint32_t in_desired_access;
107 uint32_t in_file_attributes;
108 uint32_t in_share_access;
109 uint32_t in_create_disposition;
110 uint32_t in_create_options;
111 uint16_t in_name_offset;
112 uint16_t in_name_length;
113 DATA_BLOB in_name_buffer;
114 char *in_name_string;
115 size_t in_name_string_size;
116 uint32_t name_offset = 0;
117 uint32_t name_available_length = 0;
118 uint32_t in_context_offset;
119 uint32_t in_context_length;
120 DATA_BLOB in_context_buffer;
121 struct smb2_create_blobs in_context_blobs;
122 uint32_t context_offset = 0;
123 uint32_t context_available_length = 0;
124 uint32_t dyn_offset;
125 NTSTATUS status;
126 bool ok;
127 struct tevent_req *tsubreq;
128
129 status = smbd_smb2_request_verify_sizes(smb2req, 0x39);
130 if (!NT_STATUS_IS_OK(status)) {
131 return smbd_smb2_request_error(smb2req, status);
132 }
133 inbody = SMBD_SMB2_IN_BODY_PTR(smb2req);
134
135 in_oplock_level = CVAL(inbody, 0x03);
136 in_impersonation_level = IVAL(inbody, 0x04);
137 in_desired_access = IVAL(inbody, 0x18);
138 in_file_attributes = IVAL(inbody, 0x1C);
139 in_share_access = IVAL(inbody, 0x20);
140 in_create_disposition = IVAL(inbody, 0x24);
141 in_create_options = IVAL(inbody, 0x28);
142 in_name_offset = SVAL(inbody, 0x2C);
143 in_name_length = SVAL(inbody, 0x2E);
144 in_context_offset = IVAL(inbody, 0x30);
145 in_context_length = IVAL(inbody, 0x34);
146
147 /*
148 * First check if the dynamic name and context buffers
149 * are correctly specified.
150 *
151 * Note: That we don't check if the name and context buffers
152 * overlap
153 */
154
155 dyn_offset = SMB2_HDR_BODY + SMBD_SMB2_IN_BODY_LEN(smb2req);
156
157 if (in_name_offset == 0 && in_name_length == 0) {
158 /* This is ok */
159 name_offset = 0;
160 } else if (in_name_offset < dyn_offset) {
161 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
162 } else {
163 name_offset = in_name_offset - dyn_offset;
164 }
165
166 indyniov = SMBD_SMB2_IN_DYN_IOV(smb2req);
167
168 if (name_offset > indyniov->iov_len) {
169 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
170 }
171
172 name_available_length = indyniov->iov_len - name_offset;
173
174 if (in_name_length > name_available_length) {
175 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
176 }
177
178 in_name_buffer.data = (uint8_t *)indyniov->iov_base + name_offset;
179 in_name_buffer.length = in_name_length;
180
181 if (in_context_offset == 0 && in_context_length == 0) {
182 /* This is ok */
183 context_offset = 0;
184 } else if (in_context_offset < dyn_offset) {
185 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
186 } else {
187 context_offset = in_context_offset - dyn_offset;
188 }
189
190 if (context_offset > indyniov->iov_len) {
191 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
192 }
193
194 context_available_length = indyniov->iov_len - context_offset;
195
196 if (in_context_length > context_available_length) {
197 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
198 }
199
200 in_context_buffer.data = (uint8_t *)indyniov->iov_base +
201 context_offset;
202 in_context_buffer.length = in_context_length;
203
204 /*
205 * Now interpret the name and context buffers
206 */
207
208 ok = convert_string_talloc(smb2req, CH_UTF16, CH_UNIX,
209 in_name_buffer.data,
210 in_name_buffer.length,
211 &in_name_string,
212 &in_name_string_size);
213 if (!ok) {
214 return smbd_smb2_request_error(smb2req, NT_STATUS_ILLEGAL_CHARACTER);
215 }
216
217 if (in_name_buffer.length == 0) {
218 in_name_string_size = 0;
219 }
220
221 if (strlen(in_name_string) != in_name_string_size) {
222 return smbd_smb2_request_error(smb2req, NT_STATUS_OBJECT_NAME_INVALID);
223 }
224
225 ZERO_STRUCT(in_context_blobs);
226 status = smb2_create_blob_parse(smb2req, in_context_buffer, &in_context_blobs);
227 if (!NT_STATUS_IS_OK(status)) {
228 return smbd_smb2_request_error(smb2req, status);
229 }
230
231 tsubreq = smbd_smb2_create_send(smb2req,
232 smb2req->sconn->ev_ctx,
233 smb2req,
234 in_oplock_level,
235 in_impersonation_level,
236 in_desired_access,
237 in_file_attributes,
238 in_share_access,
239 in_create_disposition,
240 in_create_options,
241 in_name_string,
242 in_context_blobs);
243 if (tsubreq == NULL) {
244 smb2req->subreq = NULL;
245 return smbd_smb2_request_error(smb2req, NT_STATUS_NO_MEMORY);
246 }
247 tevent_req_set_callback(tsubreq, smbd_smb2_request_create_done, smb2req);
248
249 /*
250 * For now we keep the logic that we do not send STATUS_PENDING
251 * for sharing violations, so we just wait 2 seconds.
252 *
253 * TODO: we need more tests for this.
254 */
255 return smbd_smb2_request_pending_queue(smb2req, tsubreq, 2000000);
256 }
257
258 static uint64_t get_mid_from_smb2req(struct smbd_smb2_request *smb2req)
259 {
260 uint8_t *reqhdr = SMBD_SMB2_OUT_HDR_PTR(smb2req);
261 return BVAL(reqhdr, SMB2_HDR_MESSAGE_ID);
262 }
263
264 static void smbd_smb2_request_create_done(struct tevent_req *tsubreq)
265 {
266 struct smbd_smb2_request *smb2req = tevent_req_callback_data(tsubreq,
267 struct smbd_smb2_request);
268 DATA_BLOB outbody;
269 DATA_BLOB outdyn;
270 uint8_t out_oplock_level = 0;
271 uint32_t out_create_action = 0;
272 NTTIME out_creation_time = 0;
273 NTTIME out_last_access_time = 0;
274 NTTIME out_last_write_time = 0;
275 NTTIME out_change_time = 0;
276 uint64_t out_allocation_size = 0;
277 uint64_t out_end_of_file = 0;
278 uint32_t out_file_attributes = 0;
279 uint64_t out_file_id_persistent = 0;
280 uint64_t out_file_id_volatile = 0;
281 struct smb2_create_blobs out_context_blobs;
282 DATA_BLOB out_context_buffer;
283 uint16_t out_context_buffer_offset = 0;
284 NTSTATUS status;
285 NTSTATUS error; /* transport error */
286
287 status = smbd_smb2_create_recv(tsubreq,
288 smb2req,
289 &out_oplock_level,
290 &out_create_action,
291 &out_creation_time,
292 &out_last_access_time,
293 &out_last_write_time,
294 &out_change_time,
295 &out_allocation_size,
296 &out_end_of_file,
297 &out_file_attributes,
298 &out_file_id_persistent,
299 &out_file_id_volatile,
300 &out_context_blobs);
301 if (!NT_STATUS_IS_OK(status)) {
302 error = smbd_smb2_request_error(smb2req, status);
303 if (!NT_STATUS_IS_OK(error)) {
304 smbd_server_connection_terminate(smb2req->sconn,
305 nt_errstr(error));
306 return;
307 }
308 return;
309 }
310
311 status = smb2_create_blob_push(smb2req, &out_context_buffer, out_context_blobs);
312 if (!NT_STATUS_IS_OK(status)) {
313 error = smbd_smb2_request_error(smb2req, status);
314 if (!NT_STATUS_IS_OK(error)) {
315 smbd_server_connection_terminate(smb2req->sconn,
316 nt_errstr(error));
317 return;
318 }
319 return;
320 }
321
322 if (out_context_buffer.length > 0) {
323 out_context_buffer_offset = SMB2_HDR_BODY + 0x58;
324 }
325
326 outbody = data_blob_talloc(smb2req->out.vector, NULL, 0x58);
327 if (outbody.data == NULL) {
328 error = smbd_smb2_request_error(smb2req, NT_STATUS_NO_MEMORY);
329 if (!NT_STATUS_IS_OK(error)) {
330 smbd_server_connection_terminate(smb2req->sconn,
331 nt_errstr(error));
332 return;
333 }
334 return;
335 }
336
337 SSVAL(outbody.data, 0x00, 0x58 + 1); /* struct size */
338 SCVAL(outbody.data, 0x02,
339 out_oplock_level); /* oplock level */
340 SCVAL(outbody.data, 0x03, 0); /* reserved */
341 SIVAL(outbody.data, 0x04,
342 out_create_action); /* create action */
343 SBVAL(outbody.data, 0x08,
344 out_creation_time); /* creation time */
345 SBVAL(outbody.data, 0x10,
346 out_last_access_time); /* last access time */
347 SBVAL(outbody.data, 0x18,
348 out_last_write_time); /* last write time */
349 SBVAL(outbody.data, 0x20,
350 out_change_time); /* change time */
351 SBVAL(outbody.data, 0x28,
352 out_allocation_size); /* allocation size */
353 SBVAL(outbody.data, 0x30,
354 out_end_of_file); /* end of file */
355 SIVAL(outbody.data, 0x38,
356 out_file_attributes); /* file attributes */
357 SIVAL(outbody.data, 0x3C, 0); /* reserved */
358 SBVAL(outbody.data, 0x40,
359 out_file_id_persistent); /* file id (persistent) */
360 SBVAL(outbody.data, 0x48,
361 out_file_id_volatile); /* file id (volatile) */
362 SIVAL(outbody.data, 0x50,
363 out_context_buffer_offset); /* create contexts offset */
364 SIVAL(outbody.data, 0x54,
365 out_context_buffer.length); /* create contexts length */
366
367 outdyn = out_context_buffer;
368
369 error = smbd_smb2_request_done(smb2req, outbody, &outdyn);
370 if (!NT_STATUS_IS_OK(error)) {
371 smbd_server_connection_terminate(smb2req->sconn,
372 nt_errstr(error));
373 return;
374 }
375 }
376
377 struct smbd_smb2_create_state {
378 struct smbd_smb2_request *smb2req;
379 struct smb_request *smb1req;
380 bool open_was_deferred;
381 struct tevent_timer *te;
382 struct tevent_immediate *im;
383 struct timeval request_time;
384 struct file_id id;
385 DATA_BLOB private_data;
386 uint8_t out_oplock_level;
387 uint32_t out_create_action;
388 NTTIME out_creation_time;
389 NTTIME out_last_access_time;
390 NTTIME out_last_write_time;
391 NTTIME out_change_time;
392 uint64_t out_allocation_size;
393 uint64_t out_end_of_file;
394 uint32_t out_file_attributes;
395 uint64_t out_file_id_persistent;
396 uint64_t out_file_id_volatile;
397 struct smb2_create_blobs out_context_blobs;
398 };
399
400 static struct tevent_req *smbd_smb2_create_send(TALLOC_CTX *mem_ctx,
401 struct tevent_context *ev,
402 struct smbd_smb2_request *smb2req,
403 uint8_t in_oplock_level,
404 uint32_t in_impersonation_level,
405 uint32_t in_desired_access,
406 uint32_t in_file_attributes,
407 uint32_t in_share_access,
408 uint32_t in_create_disposition,
409 uint32_t in_create_options,
410 const char *in_name,
411 struct smb2_create_blobs in_context_blobs)
412 {
413 struct tevent_req *req = NULL;
414 struct smbd_smb2_create_state *state = NULL;
415 NTSTATUS status;
416 struct smb_request *smb1req = NULL;
417 files_struct *result = NULL;
418 int info;
419 struct timespec write_time_ts;
420 struct smb2_create_blobs out_context_blobs;
421 int requested_oplock_level;
422 struct smb2_create_blob *dhnc = NULL;
423 struct smb2_create_blob *dh2c = NULL;
424 struct smbXsrv_open *op = NULL;
425
426 ZERO_STRUCT(out_context_blobs);
427
428 if(lp_fake_oplocks(SNUM(smb2req->tcon->compat))) {
429 requested_oplock_level = SMB2_OPLOCK_LEVEL_NONE;
430 } else {
431 requested_oplock_level = in_oplock_level;
432 }
433
434
435 if (smb2req->subreq == NULL) {
436 /* New create call. */
437 req = tevent_req_create(mem_ctx, &state,
438 struct smbd_smb2_create_state);
439 if (req == NULL) {
440 return NULL;
441 }
442 state->smb2req = smb2req;
443
444 smb1req = smbd_smb2_fake_smb_request(smb2req);
445 if (tevent_req_nomem(smb1req, req)) {
446 return tevent_req_post(req, ev);
447 }
448 state->smb1req = smb1req;
449 smb2req->subreq = req;
450 DEBUG(10,("smbd_smb2_create: name[%s]\n",
451 in_name));
452 } else {
453 /* Re-entrant create call. */
454 req = smb2req->subreq;
455 state = tevent_req_data(req,
456 struct smbd_smb2_create_state);
457 smb1req = state->smb1req;
458 DEBUG(10,("smbd_smb2_create_send: reentrant for file %s\n",
459 in_name ));
460 }
461
462 dhnc = smb2_create_blob_find(&in_context_blobs,
463 SMB2_CREATE_TAG_DHNC);
464
465 if (dhnc) {
466 if (dhnc->data.length != 16) {
467 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
468 return tevent_req_post(req, ev);
469 }
470 if (in_context_blobs.num_blobs != 1) {
471 /*
472 * DHNC should be the only one.
473 */
474 tevent_req_nterror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND);
475 return tevent_req_post(req, ev);
476 }
477 }
478
479 dh2c = smb2_create_blob_find(&in_context_blobs,
480 SMB2_CREATE_TAG_DH2C);
481 if (dh2c) {
482 if (dh2c->data.length != 36) {
483 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
484 return tevent_req_post(req, ev);
485 }
486 if (in_context_blobs.num_blobs != 1) {
487 /*
488 * DH2C should be the only one.
489 */
490 tevent_req_nterror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND);
491 return tevent_req_post(req, ev);
492 }
493 }
494
495 if (IS_IPC(smb1req->conn)) {
496 const char *pipe_name = in_name;
497
498 if (dhnc || dh2c) {
499 /* durable handles are not supported on IPC$ */
500 tevent_req_nterror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND);
501 return tevent_req_post(req, ev);
502 }
503
504 if (!lp_nt_pipe_support()) {
505 tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
506 return tevent_req_post(req, ev);
507 }
508
509 status = open_np_file(smb1req, pipe_name, &result);
510 if (!NT_STATUS_IS_OK(status)) {
511 tevent_req_nterror(req, status);
512 return tevent_req_post(req, ev);
513 }
514 info = FILE_WAS_OPENED;
515 } else if (CAN_PRINT(smb1req->conn)) {
516 if (dhnc || dh2c) {
517 /* durable handles are not supported on printers */
518 tevent_req_nterror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND);
519 return tevent_req_post(req, ev);
520 }
521
522 status = file_new(smb1req, smb1req->conn, &result);
523 if(!NT_STATUS_IS_OK(status)) {
524 tevent_req_nterror(req, status);
525 return tevent_req_post(req, ev);
526 }
527
528 status = print_spool_open(result, in_name,
529 smb1req->vuid);
530 if (!NT_STATUS_IS_OK(status)) {
531 file_free(smb1req, result);
532 tevent_req_nterror(req, status);
533 return tevent_req_post(req, ev);
534 }
535 info = FILE_WAS_CREATED;
536 } else {
537 char *fname;
538 struct smb2_create_blob *exta = NULL;
539 struct ea_list *ea_list = NULL;
540 struct smb2_create_blob *mxac = NULL;
541 NTTIME max_access_time = 0;
542 struct smb2_create_blob *secd = NULL;
543 struct security_descriptor *sec_desc = NULL;
544 struct smb2_create_blob *dhnq = NULL;
545 struct smb2_create_blob *alsi = NULL;
546 uint64_t allocation_size = 0;
547 struct smb2_create_blob *twrp = NULL;
548 struct smb2_create_blob *qfid = NULL;
549 struct GUID create_guid = GUID_zero();
550 bool update_open = false;
551 bool durable_requested = false;
552 uint32_t durable_timeout_msec = 0;
553 bool do_durable_reconnect = false;
554 struct smb2_create_blob *dh2q = NULL;
555 uint64_t persistent_id = 0;
556
557 exta = smb2_create_blob_find(&in_context_blobs,
558 SMB2_CREATE_TAG_EXTA);
559 mxac = smb2_create_blob_find(&in_context_blobs,
560 SMB2_CREATE_TAG_MXAC);
561 secd = smb2_create_blob_find(&in_context_blobs,
562 SMB2_CREATE_TAG_SECD);
563 dhnq = smb2_create_blob_find(&in_context_blobs,
564 SMB2_CREATE_TAG_DHNQ);
565 alsi = smb2_create_blob_find(&in_context_blobs,
566 SMB2_CREATE_TAG_ALSI);
567 twrp = smb2_create_blob_find(&in_context_blobs,
568 SMB2_CREATE_TAG_TWRP);
569 qfid = smb2_create_blob_find(&in_context_blobs,
570 SMB2_CREATE_TAG_QFID);
571 dh2q = smb2_create_blob_find(&in_context_blobs,
572 SMB2_CREATE_TAG_DH2Q);
573
574 fname = talloc_strdup(state, in_name);
575 if (tevent_req_nomem(fname, req)) {
576 return tevent_req_post(req, ev);
577 }
578
579 if (exta) {
580 ea_list = read_nttrans_ea_list(mem_ctx,
581 (const char *)exta->data.data, exta->data.length);
582 if (!ea_list) {
583 DEBUG(10,("smbd_smb2_create_send: read_ea_name_list failed.\n"));
584 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
585 return tevent_req_post(req, ev);
586 }
587 }
588
589 if (mxac) {
590 if (mxac->data.length == 0) {
591 max_access_time = 0;
592 } else if (mxac->data.length == 8) {
593 max_access_time = BVAL(mxac->data.data, 0);
594 } else {
595 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
596 return tevent_req_post(req, ev);
597 }
598 }
599
600 if (secd) {
601 enum ndr_err_code ndr_err;
602
603 sec_desc = talloc_zero(state, struct security_descriptor);
604 if (tevent_req_nomem(sec_desc, req)) {
605 return tevent_req_post(req, ev);
606 }
607
608 ndr_err = ndr_pull_struct_blob(&secd->data,
609 sec_desc, sec_desc,
610 (ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
611 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
612 DEBUG(2,("ndr_pull_security_descriptor failed: %s\n",
613 ndr_errstr(ndr_err)));
614 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
615 return tevent_req_post(req, ev);
616 }
617 }
618
619 if (dhnq) {
620 if (dhnq->data.length != 16) {
621 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
622 return tevent_req_post(req, ev);
623 }
624
625 if (dh2q) {
626 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
627 return tevent_req_post(req, ev);
628 }
629
630 /*
631 * durable handle request is processed below.
632 */
633 durable_requested = true;
634 /*
635 * Set the timeout to 16 mins.
636 *
637 * TODO: test this against Windows 2012
638 * as the default for durable v2 is 1 min.
639 */
640 durable_timeout_msec = (16*60*1000);
641 }
642
643 if (dh2q) {
644 const uint8_t *p = dh2q->data.data;
645 uint32_t durable_v2_timeout = 0;
646 DATA_BLOB create_guid_blob;
647
648 if (dh2q->data.length != 32) {
649 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
650 return tevent_req_post(req, ev);
651 }
652
653 if (dhnq) {
654 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
655 return tevent_req_post(req, ev);
656 }
657
658 durable_v2_timeout = IVAL(p, 0);
659 create_guid_blob = data_blob_const(p + 16, 16);
660
661 status = GUID_from_ndr_blob(&create_guid_blob,
662 &create_guid);
663 if (tevent_req_nterror(req, status)) {
664 return tevent_req_post(req, ev);
665 }
666 /*
667 * we need to store the create_guid later
668 */
669 update_open = true;
670
671 /*
672 * durable handle v2 request processed below
673 */
674 durable_requested = true;
675 durable_timeout_msec = durable_v2_timeout;
676 if (durable_timeout_msec == 0) {
677 /*
678 * Set the timeout to 1 min as default.
679 *
680 * This matches Windows 2012.
681 */
682 durable_timeout_msec = (60*1000);
683 }
684 }
685
686 if (dhnc) {
687 persistent_id = BVAL(dhnc->data.data, 0);
688
689 do_durable_reconnect = true;
690 }
691
692 if (dh2c) {
693 const uint8_t *p = dh2c->data.data;
694 DATA_BLOB create_guid_blob;
695
696 persistent_id = BVAL(p, 0);
697 create_guid_blob = data_blob_const(p + 16, 16);
698
699 status = GUID_from_ndr_blob(&create_guid_blob,
700 &create_guid);
701 if (tevent_req_nterror(req, status)) {
702 return tevent_req_post(req, ev);
703 }
704
705 do_durable_reconnect = true;
706 }
707
708 if (alsi) {
709 if (alsi->data.length != 8) {
710 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
711 return tevent_req_post(req, ev);
712 }
713 allocation_size = BVAL(alsi->data.data, 0);
714 }
715
716 if (twrp) {
717 NTTIME nttime;
718 time_t t;
719 struct tm *tm;
720
721 if (twrp->data.length != 8) {
722 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
723 return tevent_req_post(req, ev);
724 }
725
726 nttime = BVAL(twrp->data.data, 0);
727 t = nt_time_to_unix(nttime);
728 tm = gmtime(&t);
729
730 TALLOC_FREE(fname);
731 fname = talloc_asprintf(state,
732 "@GMT-%04u.%02u.%02u-%02u.%02u.%02u\\%s",
733 tm->tm_year + 1900,
734 tm->tm_mon + 1,
735 tm->tm_mday,
736 tm->tm_hour,
737 tm->tm_min,
738 tm->tm_sec,
739 in_name);
740 if (tevent_req_nomem(fname, req)) {
741 return tevent_req_post(req, ev);
742 }
743 }
744
745 if (qfid) {
746 if (qfid->data.length != 0) {
747 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
748 return tevent_req_post(req, ev);
749 }
750 }
751
752 /* these are ignored for SMB2 */
753 in_create_options &= ~(0x10);/* NTCREATEX_OPTIONS_SYNC_ALERT */
754 in_create_options &= ~(0x20);/* NTCREATEX_OPTIONS_ASYNC_ALERT */
755
756 in_file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
757
758 DEBUG(10, ("smbd_smb2_create_send: open execution phase\n"));
759
760 /*
761 * For the backend file open procedure, there are
762 * two possible modes: durable_reconnect or not.
763 */
764 if (do_durable_reconnect) {
765 DATA_BLOB new_cookie = data_blob_null;
766 NTTIME now = timeval_to_nttime(&smb2req->request_time);
767
768 status = smb2srv_open_recreate(smb2req->sconn->conn,
769 smb1req->conn->session_info,
770 persistent_id, create_guid,
771 now, &op);
772 if (!NT_STATUS_IS_OK(status)) {
773 DEBUG(3, ("smbd_smb2_create_send: "
774 "smb2srv_open_recreate failed: %s\n",
775 nt_errstr(status)));
776 tevent_req_nterror(req, status);
777 return tevent_req_post(req, ev);
778 }
779
780 DEBUG(10, ("smb2_create_send: %s to recreate the "
781 "smb2srv_open struct for a durable handle.\n",
782 op->global->durable ? "succeded" : "failed"));
783
784 if (!op->global->durable) {
785 talloc_free(op);
786 tevent_req_nterror(req,
787 NT_STATUS_OBJECT_NAME_NOT_FOUND);
788 return tevent_req_post(req, ev);
789 }
790
791 status = SMB_VFS_DURABLE_RECONNECT(smb1req->conn,
792 smb1req,
793 op, /* smbXsrv_open input */
794 op->global->backend_cookie,
795 op, /* TALLOC_CTX */
796 &result, &new_cookie);
797 if (!NT_STATUS_IS_OK(status)) {
798 NTSTATUS return_status;
799
800 return_status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
801
802 DEBUG(3, ("smbd_smb2_create_send: "
803 "durable_reconnect failed: %s => %s\n",
804 nt_errstr(status),
805 nt_errstr(return_status)));
806
807 tevent_req_nterror(req, return_status);
808 return tevent_req_post(req, ev);
809 }
810
811 data_blob_free(&op->global->backend_cookie);
812 op->global->backend_cookie = new_cookie;
813
814 op->status = NT_STATUS_OK;
815 op->global->disconnect_time = 0;
816
817 /* save the timout for later update */
818 durable_timeout_msec = op->global->durable_timeout_msec;
819
820 update_open = true;
821
822 info = FILE_WAS_OPENED;
823 } else {
824 struct smb_filename *smb_fname = NULL;
825
826 /*
827 * For a DFS path the function parse_dfs_path()
828 * will do the path processing.
829 */
830
831 if (!(smb1req->flags2 & FLAGS2_DFS_PATHNAMES)) {
832 /* convert '\\' into '/' */
833 status = check_path_syntax(fname);
834 if (!NT_STATUS_IS_OK(status)) {
835 tevent_req_nterror(req, status);
836 return tevent_req_post(req, ev);
837 }
838 }
839
840 status = filename_convert(req,
841 smb1req->conn,
842 smb1req->flags2 & FLAGS2_DFS_PATHNAMES,
843 fname,
844 0, /* unix_convert flags */
845 NULL, /* ppath_contains_wcards */
846 &smb_fname);
847 if (!NT_STATUS_IS_OK(status)) {
848 tevent_req_nterror(req, status);
849 return tevent_req_post(req, ev);
850 }
851
852 status = SMB_VFS_CREATE_FILE(smb1req->conn,
853 smb1req,
854 0, /* root_dir_fid */
855 smb_fname,
856 in_desired_access,
857 in_share_access,
858 in_create_disposition,
859 in_create_options,
860 in_file_attributes,
861 map_smb2_oplock_levels_to_samba(requested_oplock_level),
862 allocation_size,
863 0, /* private_flags */
864 sec_desc,
865 ea_list,
866 &result,
867 &info);
868 if (!NT_STATUS_IS_OK(status)) {
869 if (open_was_deferred(smb1req->sconn, smb1req->mid)) {
870 return req;
871 }
872 tevent_req_nterror(req, status);
873 return tevent_req_post(req, ev);
874 }
875 op = result->op;
876 }
877
878 /*
879 * here we have op == result->op
880 */
881
882 DEBUG(10, ("smbd_smb2_create_send: "
883 "response construction phase\n"));
884
885 if (mxac) {
886 NTTIME last_write_time;
887
888 unix_timespec_to_nt_time(&last_write_time,
889 result->fsp_name->st.st_ex_mtime);
890 if (last_write_time != max_access_time) {
891 uint8_t p[8];
892 uint32_t max_access_granted;
893 DATA_BLOB blob = data_blob_const(p, sizeof(p));
894
895 status = smbd_calculate_access_mask(smb1req->conn,
896 result->fsp_name,
897 false,
898 SEC_FLAG_MAXIMUM_ALLOWED,
899 &max_access_granted);
900
901 SIVAL(p, 0, NT_STATUS_V(status));
902 SIVAL(p, 4, max_access_granted);
903
904 status = smb2_create_blob_add(state,
905 &out_context_blobs,
906 SMB2_CREATE_TAG_MXAC,
907 blob);
908 if (!NT_STATUS_IS_OK(status)) {
909 tevent_req_nterror(req, status);
910 return tevent_req_post(req, ev);
911 }
912 }
913 }
914
915 if (durable_requested &&
916 BATCH_OPLOCK_TYPE(result->oplock_type))
917 {
918 status = SMB_VFS_DURABLE_COOKIE(result,
919 op,
920 &op->global->backend_cookie);
921 if (!NT_STATUS_IS_OK(status)) {
922 op->global->backend_cookie = data_blob_null;
923 }
924 }
925 if (op->global->backend_cookie.length > 0) {
926 update_open = true;
927
928 op->global->durable = true;
929 op->global->durable_timeout_msec = durable_timeout_msec;
930 }
931
932 if (update_open) {
933 op->global->create_guid = create_guid;
934
935 status = smbXsrv_open_update(op);
936 DEBUG(10, ("smb2_create_send: smbXsrv_open_update "
937 "returned %s\n",
938 nt_errstr(status)));
939 if (!NT_STATUS_IS_OK(status)) {
940 tevent_req_nterror(req, status);
941 return tevent_req_post(req, ev);
942 }
943 }
944
945 if (dhnq && op->global->durable) {
946 uint8_t p[8] = { 0, };
947 DATA_BLOB blob = data_blob_const(p, sizeof(p));
948
949 status = smb2_create_blob_add(state,
950 &out_context_blobs,
951 SMB2_CREATE_TAG_DHNQ,
952 blob);
953 if (!NT_STATUS_IS_OK(status)) {
954 tevent_req_nterror(req, status);
955 return tevent_req_post(req, ev);
956 }
957 }
958
959 if (dh2q && op->global->durable) {
960 uint8_t p[8] = { 0, };
961 DATA_BLOB blob = data_blob_const(p, sizeof(p));
962 uint32_t durable_v2_response_flags = 0;
963
964 SIVAL(p, 0, op->global->durable_timeout_msec);
965 SIVAL(p, 4, durable_v2_response_flags);
966
967 status = smb2_create_blob_add(state, &out_context_blobs,
968 SMB2_CREATE_TAG_DH2Q,
969 blob);
970 if (!NT_STATUS_IS_OK(status)) {
971 tevent_req_nterror(req, status);
972 return tevent_req_post(req, ev);
973 }
974 }
975
976 if (qfid) {
977 uint8_t p[32];
978 uint64_t file_index = get_FileIndex(result->conn,
979 &result->fsp_name->st);
980 DATA_BLOB blob = data_blob_const(p, sizeof(p));
981
982 ZERO_STRUCT(p);
983
984 /* From conversations with Microsoft engineers at
985 the MS plugfest. The first 8 bytes are the "volume index"
986 == inode, the second 8 bytes are the "volume id",
987 == dev. This will be updated in the SMB2 doc. */
988 SBVAL(p, 0, file_index);
989 SIVAL(p, 8, result->fsp_name->st.st_ex_dev);/* FileIndexHigh */
990
991 status = smb2_create_blob_add(state, &out_context_blobs,
992 SMB2_CREATE_TAG_QFID,
993 blob);
994 if (!NT_STATUS_IS_OK(status)) {
995 tevent_req_nterror(req, status);
996 return tevent_req_post(req, ev);
997 }
998 }
999 }
1000
1001 smb2req->compat_chain_fsp = smb1req->chain_fsp;
1002
1003 if(lp_fake_oplocks(SNUM(smb2req->tcon->compat))) {
1004 state->out_oplock_level = in_oplock_level;
1005 } else {
1006 state->out_oplock_level = map_samba_oplock_levels_to_smb2(result->oplock_type);
1007 }
1008
1009 if ((in_create_disposition == FILE_SUPERSEDE)
1010 && (info == FILE_WAS_OVERWRITTEN)) {
1011 state->out_create_action = FILE_WAS_SUPERSEDED;
1012 } else {
1013 state->out_create_action = info;
1014 }
1015 state->out_file_attributes = dos_mode(result->conn,
1016 result->fsp_name);
1017 /* Deal with other possible opens having a modified
1018 write time. JRA. */
1019 ZERO_STRUCT(write_time_ts);
1020 get_file_infos(result->file_id, 0, NULL, &write_time_ts);
1021 if (!null_timespec(write_time_ts)) {
1022 update_stat_ex_mtime(&result->fsp_name->st, write_time_ts);
1023 }
1024
1025 unix_timespec_to_nt_time(&state->out_creation_time,
1026 get_create_timespec(smb1req->conn, result,
1027 result->fsp_name));
1028 unix_timespec_to_nt_time(&state->out_last_access_time,
1029 result->fsp_name->st.st_ex_atime);
1030 unix_timespec_to_nt_time(&state->out_last_write_time,
1031 result->fsp_name->st.st_ex_mtime);
1032 unix_timespec_to_nt_time(&state->out_change_time,
1033 get_change_timespec(smb1req->conn, result,
1034 result->fsp_name));
1035 state->out_allocation_size =
1036 SMB_VFS_GET_ALLOC_SIZE(smb1req->conn, result,
1037 &(result->fsp_name->st));
1038 state->out_end_of_file = result->fsp_name->st.st_ex_size;
1039 if (state->out_file_attributes == 0) {
1040 state->out_file_attributes = FILE_ATTRIBUTE_NORMAL;
1041 }
1042 state->out_file_id_persistent = result->op->global->open_persistent_id;
1043 state->out_file_id_volatile = result->op->global->open_volatile_id;
1044 state->out_context_blobs = out_context_blobs;
1045
1046 DEBUG(10,("smbd_smb2_create_send: %s - %s\n",
1047 fsp_str_dbg(result), fsp_fnum_dbg(result)));
1048
1049 tevent_req_done(req);
1050 return tevent_req_post(req, ev);
1051 }
1052
1053 static NTSTATUS smbd_smb2_create_recv(struct tevent_req *req,
1054 TALLOC_CTX *mem_ctx,
1055 uint8_t *out_oplock_level,
1056 uint32_t *out_create_action,
1057 NTTIME *out_creation_time,
1058 NTTIME *out_last_access_time,
1059 NTTIME *out_last_write_time,
1060 NTTIME *out_change_time,
1061 uint64_t *out_allocation_size,
1062 uint64_t *out_end_of_file,
1063 uint32_t *out_file_attributes,
1064 uint64_t *out_file_id_persistent,
1065 uint64_t *out_file_id_volatile,
1066 struct smb2_create_blobs *out_context_blobs)
1067 {
1068 NTSTATUS status;
1069 struct smbd_smb2_create_state *state = tevent_req_data(req,
1070 struct smbd_smb2_create_state);
1071
1072 if (tevent_req_is_nterror(req, &status)) {
1073 tevent_req_received(req);
1074 return status;
1075 }
1076
1077 *out_oplock_level = state->out_oplock_level;
1078 *out_create_action = state->out_create_action;
1079 *out_creation_time = state->out_creation_time;
1080 *out_last_access_time = state->out_last_access_time;
1081 *out_last_write_time = state->out_last_write_time;
1082 *out_change_time = state->out_change_time;
1083 *out_allocation_size = state->out_allocation_size;
1084 *out_end_of_file = state->out_end_of_file;
1085 *out_file_attributes = state->out_file_attributes;
1086 *out_file_id_persistent = state->out_file_id_persistent;
1087 *out_file_id_volatile = state->out_file_id_volatile;
1088 *out_context_blobs = state->out_context_blobs;
1089
1090 talloc_steal(mem_ctx, state->out_context_blobs.blobs);
1091
1092 tevent_req_received(req);
1093 return NT_STATUS_OK;
1094 }
1095
1096 /*********************************************************
1097 Code for dealing with deferred opens.
1098 *********************************************************/
1099
1100 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request *smb2req,
1101 struct timeval *p_request_time,
1102 void **pp_state)
1103 {
1104 struct smbd_smb2_create_state *state = NULL;
1105 struct tevent_req *req = NULL;
1106
1107 if (!smb2req) {
1108 return false;
1109 }
1110 req = smb2req->subreq;
1111 if (!req) {
1112 return false;
1113 }
1114 state = tevent_req_data(req, struct smbd_smb2_create_state);
1115 if (!state) {
1116 return false;
1117 }
1118 if (!state->open_was_deferred) {
1119 return false;
1120 }
1121 if (p_request_time) {
1122 *p_request_time = state->request_time;
1123 }
1124 if (pp_state) {
1125 *pp_state = (void *)state->private_data.data;
1126 }
1127 return true;
1128 }
1129
1130 /*********************************************************
1131 Re-process this call early - requested by message or
1132 close.
1133 *********************************************************/
1134
1135 static struct smbd_smb2_request *find_open_smb2req(
1136 struct smbd_server_connection *sconn, uint64_t mid)
1137 {
1138 struct smbd_smb2_request *smb2req;
1139
1140 for (smb2req = sconn->smb2.requests; smb2req; smb2req = smb2req->next) {
1141 uint64_t message_id;
1142 if (smb2req->subreq == NULL) {
1143 /* This message has been processed. */
1144 continue;
1145 }
1146 if (!tevent_req_is_in_progress(smb2req->subreq)) {
1147 /* This message has been processed. */
1148 continue;
1149 }
1150 message_id = get_mid_from_smb2req(smb2req);
1151 if (message_id == mid) {
1152 return smb2req;
1153 }
1154 }
1155 return NULL;
1156 }
1157
1158 bool open_was_deferred_smb2(struct smbd_server_connection *sconn, uint64_t mid)
1159 {
1160 struct smbd_smb2_create_state *state = NULL;
1161 struct smbd_smb2_request *smb2req;
1162
1163 smb2req = find_open_smb2req(sconn, mid);
1164
1165 if (!smb2req) {
1166 DEBUG(10,("open_was_deferred_smb2: mid %llu smb2req == NULL\n",
1167 (unsigned long long)mid));
1168 return false;
1169 }
1170 if (!smb2req->subreq) {
1171 return false;
1172 }
1173 if (!tevent_req_is_in_progress(smb2req->subreq)) {
1174 return false;
1175 }
1176 state = tevent_req_data(smb2req->subreq,
1177 struct smbd_smb2_create_state);
1178 if (!state) {
1179 return false;
1180 }
1181 /* It's not in progress if there's no timeout event. */
1182 if (!state->open_was_deferred) {
1183 return false;
1184 }
1185
1186 DEBUG(10,("open_was_deferred_smb2: mid = %llu\n",
1187 (unsigned long long)mid));
1188
1189 return true;
1190 }
1191
1192 static void remove_deferred_open_message_smb2_internal(struct smbd_smb2_request *smb2req,
1193 uint64_t mid)
1194 {
1195 struct smbd_smb2_create_state *state = NULL;
1196
1197 if (!smb2req->subreq) {
1198 return;
1199 }
1200 if (!tevent_req_is_in_progress(smb2req->subreq)) {
1201 return;
1202 }
1203 state = tevent_req_data(smb2req->subreq,
1204 struct smbd_smb2_create_state);
1205 if (!state) {
1206 return;
1207 }
1208
1209 DEBUG(10,("remove_deferred_open_message_smb2_internal: "
1210 "mid %llu\n",
1211 (unsigned long long)mid ));
1212
1213 state->open_was_deferred = false;
1214 /* Ensure we don't have any outstanding timer event. */
1215 TALLOC_FREE(state->te);
1216 /* Ensure we don't have any outstanding immediate event. */
1217 TALLOC_FREE(state->im);
1218 }
1219
1220 void remove_deferred_open_message_smb2(
1221 struct smbd_server_connection *sconn, uint64_t mid)
1222 {
1223 struct smbd_smb2_request *smb2req;
1224
1225 smb2req = find_open_smb2req(sconn, mid);
1226
1227 if (!smb2req) {
1228 DEBUG(10,("remove_deferred_open_message_smb2: "
1229 "can't find mid %llu\n",
1230 (unsigned long long)mid ));
1231 return;
1232 }
1233 remove_deferred_open_message_smb2_internal(smb2req, mid);
1234 }
1235
1236 static void smbd_smb2_create_request_dispatch_immediate(struct tevent_context *ctx,
1237 struct tevent_immediate *im,
1238 void *private_data)
1239 {
1240 struct smbd_smb2_request *smb2req = talloc_get_type_abort(private_data,
1241 struct smbd_smb2_request);
1242 struct smbd_server_connection *sconn = smb2req->sconn;
1243 uint64_t mid = get_mid_from_smb2req(smb2req);
1244 NTSTATUS status;
1245
1246 DEBUG(10,("smbd_smb2_create_request_dispatch_immediate: "
1247 "re-dispatching mid %llu\n",
1248 (unsigned long long)mid ));
1249
1250 status = smbd_smb2_request_dispatch(smb2req);
1251 if (!NT_STATUS_IS_OK(status)) {
1252 smbd_server_connection_terminate(sconn, nt_errstr(status));
1253 return;
1254 }
1255 }
1256
1257 bool schedule_deferred_open_message_smb2(
1258 struct smbd_server_connection *sconn, uint64_t mid)
1259 {
1260 struct smbd_smb2_create_state *state = NULL;
1261 struct smbd_smb2_request *smb2req;
1262
1263 smb2req = find_open_smb2req(sconn, mid);
1264
1265 if (!smb2req) {
1266 DEBUG(10,("schedule_deferred_open_message_smb2: "
1267 "can't find mid %llu\n",
1268 (unsigned long long)mid ));
1269 return false;
1270 }
1271 if (!smb2req->subreq) {
1272 return false;
1273 }
1274 if (!tevent_req_is_in_progress(smb2req->subreq)) {
1275 return false;
1276 }
1277 state = tevent_req_data(smb2req->subreq,
1278 struct smbd_smb2_create_state);
1279 if (!state) {
1280 return false;
1281 }
1282
1283 /* Ensure we don't have any outstanding timer event. */
1284 TALLOC_FREE(state->te);
1285 /* Ensure we don't have any outstanding immediate event. */
1286 TALLOC_FREE(state->im);
1287
1288 /*
1289 * This is subtle. We must null out the callback
1290 * before rescheduling, else the first call to
1291 * tevent_req_nterror() causes the _receive()
1292 * function to be called, this causing tevent_req_post()
1293 * to crash.
1294 */
1295 tevent_req_set_callback(smb2req->subreq, NULL, NULL);
1296
1297 state->im = tevent_create_immediate(smb2req);
1298 if (!state->im) {
1299 smbd_server_connection_terminate(smb2req->sconn,
1300 nt_errstr(NT_STATUS_NO_MEMORY));
1301 return false;
1302 }
1303
1304 DEBUG(10,("schedule_deferred_open_message_smb2: "
1305 "re-processing mid %llu\n",
1306 (unsigned long long)mid ));
1307
1308 tevent_schedule_immediate(state->im,
1309 smb2req->sconn->ev_ctx,
1310 smbd_smb2_create_request_dispatch_immediate,
1311 smb2req);
1312
1313 return true;
1314 }
1315
1316 static bool smbd_smb2_create_cancel(struct tevent_req *req)
1317 {
1318 struct smbd_smb2_request *smb2req = NULL;
1319 struct smbd_smb2_create_state *state = tevent_req_data(req,
1320 struct smbd_smb2_create_state);
1321 uint64_t mid;
1322
1323 if (!state) {
1324 return false;
1325 }
1326
1327 if (!state->smb2req) {
1328 return false;
1329 }
1330
1331 smb2req = state->smb2req;
1332 mid = get_mid_from_smb2req(smb2req);
1333
1334 if (is_deferred_open_async(state->private_data.data)) {
1335 /* Can't cancel an async create. */
1336 return false;
1337 }
1338
1339 remove_deferred_open_message_smb2_internal(smb2req, mid);
1340
1341 tevent_req_defer_callback(req, smb2req->sconn->ev_ctx);
1342 tevent_req_nterror(req, NT_STATUS_CANCELLED);
1343 return true;
1344 }
1345
1346 bool push_deferred_open_message_smb2(struct smbd_smb2_request *smb2req,
1347 struct timeval request_time,
1348 struct timeval timeout,
1349 struct file_id id,
1350 char *private_data,
1351 size_t priv_len)
1352 {
1353 struct tevent_req *req = NULL;
1354 struct smbd_smb2_create_state *state = NULL;
1355 struct timeval end_time;
1356
1357 if (!smb2req) {
1358 return false;
1359 }
1360 req = smb2req->subreq;
1361 if (!req) {
1362 return false;
1363 }
1364 state = tevent_req_data(req, struct smbd_smb2_create_state);
1365 if (!state) {
1366 return false;
1367 }
1368 state->id = id;
1369 state->request_time = request_time;
1370 state->private_data = data_blob_talloc(state, private_data,
1371 priv_len);
1372 if (!state->private_data.data) {
1373 return false;
1374 }
1375
1376 /* Re-schedule us to retry on timer expiry. */
1377 end_time = timeval_sum(&request_time, &timeout);
1378
1379 DEBUG(10,("push_deferred_open_message_smb2: "
1380 "timeout at %s\n",
1381 timeval_string(talloc_tos(),
1382 &end_time,
1383 true) ));
1384
1385 state->open_was_deferred = true;
1386
1387 /* allow this request to be canceled */
1388 tevent_req_set_cancel_fn(req, smbd_smb2_create_cancel);
1389
1390 return true;
1391 }
stuff from bjacke