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s3:smb2_create: treat the SVHDX_OPEN_DEVICE_CONTEXT in smb2_create (not supported)
[Samba.git] / source3 / smbd / smb2_create.c
blob880ceee26a52d5e7de41e02f9332705b45c9e7e0
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 "../librpc/gen_ndr/ndr_smb2_lease_struct.h"
29 #include "../lib/util/tevent_ntstatus.h"
30 #include "messages.h"
31
32 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level)
33 {
34 switch(in_oplock_level) {
35 case SMB2_OPLOCK_LEVEL_NONE:
36 return NO_OPLOCK;
37 case SMB2_OPLOCK_LEVEL_II:
38 return LEVEL_II_OPLOCK;
39 case SMB2_OPLOCK_LEVEL_EXCLUSIVE:
40 return EXCLUSIVE_OPLOCK;
41 case SMB2_OPLOCK_LEVEL_BATCH:
42 return BATCH_OPLOCK;
43 case SMB2_OPLOCK_LEVEL_LEASE:
44 return LEASE_OPLOCK;
45 default:
46 DEBUG(2,("map_smb2_oplock_levels_to_samba: "
47 "unknown level %u\n",
48 (unsigned int)in_oplock_level));
49 return NO_OPLOCK;
50 }
51 }
52
53 static uint8_t map_samba_oplock_levels_to_smb2(int oplock_type)
54 {
55 if (BATCH_OPLOCK_TYPE(oplock_type)) {
56 return SMB2_OPLOCK_LEVEL_BATCH;
57 } else if (EXCLUSIVE_OPLOCK_TYPE(oplock_type)) {
58 return SMB2_OPLOCK_LEVEL_EXCLUSIVE;
59 } else if (oplock_type == LEVEL_II_OPLOCK) {
60 return SMB2_OPLOCK_LEVEL_II;
61 } else if (oplock_type == LEASE_OPLOCK) {
62 return SMB2_OPLOCK_LEVEL_LEASE;
63 } else {
64 return SMB2_OPLOCK_LEVEL_NONE;
65 }
66 }
67
68 static struct tevent_req *smbd_smb2_create_send(TALLOC_CTX *mem_ctx,
69 struct tevent_context *ev,
70 struct smbd_smb2_request *smb2req,
71 uint8_t in_oplock_level,
72 uint32_t in_impersonation_level,
73 uint32_t in_desired_access,
74 uint32_t in_file_attributes,
75 uint32_t in_share_access,
76 uint32_t in_create_disposition,
77 uint32_t in_create_options,
78 const char *in_name,
79 struct smb2_create_blobs in_context_blobs);
80 static NTSTATUS smbd_smb2_create_recv(struct tevent_req *req,
81 TALLOC_CTX *mem_ctx,
82 uint8_t *out_oplock_level,
83 uint32_t *out_create_action,
84 struct timespec *out_creation_ts,
85 struct timespec *out_last_access_ts,
86 struct timespec *out_last_write_ts,
87 struct timespec *out_change_ts,
88 uint64_t *out_allocation_size,
89 uint64_t *out_end_of_file,
90 uint32_t *out_file_attributes,
91 uint64_t *out_file_id_persistent,
92 uint64_t *out_file_id_volatile,
93 struct smb2_create_blobs *out_context_blobs);
94
95 static void smbd_smb2_request_create_done(struct tevent_req *tsubreq);
96 NTSTATUS smbd_smb2_request_process_create(struct smbd_smb2_request *smb2req)
97 {
98 const uint8_t *inbody;
99 const struct iovec *indyniov;
100 uint8_t in_oplock_level;
101 uint32_t in_impersonation_level;
102 uint32_t in_desired_access;
103 uint32_t in_file_attributes;
104 uint32_t in_share_access;
105 uint32_t in_create_disposition;
106 uint32_t in_create_options;
107 uint16_t in_name_offset;
108 uint16_t in_name_length;
109 DATA_BLOB in_name_buffer;
110 char *in_name_string;
111 size_t in_name_string_size;
112 uint32_t name_offset = 0;
113 uint32_t name_available_length = 0;
114 uint32_t in_context_offset;
115 uint32_t in_context_length;
116 DATA_BLOB in_context_buffer;
117 struct smb2_create_blobs in_context_blobs;
118 uint32_t context_offset = 0;
119 uint32_t context_available_length = 0;
120 uint32_t dyn_offset;
121 NTSTATUS status;
122 bool ok;
123 struct tevent_req *tsubreq;
124
125 status = smbd_smb2_request_verify_sizes(smb2req, 0x39);
126 if (!NT_STATUS_IS_OK(status)) {
127 return smbd_smb2_request_error(smb2req, status);
128 }
129 inbody = SMBD_SMB2_IN_BODY_PTR(smb2req);
130
131 in_oplock_level = CVAL(inbody, 0x03);
132 in_impersonation_level = IVAL(inbody, 0x04);
133 in_desired_access = IVAL(inbody, 0x18);
134 in_file_attributes = IVAL(inbody, 0x1C);
135 in_share_access = IVAL(inbody, 0x20);
136 in_create_disposition = IVAL(inbody, 0x24);
137 in_create_options = IVAL(inbody, 0x28);
138 in_name_offset = SVAL(inbody, 0x2C);
139 in_name_length = SVAL(inbody, 0x2E);
140 in_context_offset = IVAL(inbody, 0x30);
141 in_context_length = IVAL(inbody, 0x34);
142
143 /*
144 * First check if the dynamic name and context buffers
145 * are correctly specified.
146 *
147 * Note: That we don't check if the name and context buffers
148 * overlap
149 */
150
151 dyn_offset = SMB2_HDR_BODY + SMBD_SMB2_IN_BODY_LEN(smb2req);
152
153 if (in_name_offset == 0 && in_name_length == 0) {
154 /* This is ok */
155 name_offset = 0;
156 } else if (in_name_offset < dyn_offset) {
157 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
158 } else {
159 name_offset = in_name_offset - dyn_offset;
160 }
161
162 indyniov = SMBD_SMB2_IN_DYN_IOV(smb2req);
163
164 if (name_offset > indyniov->iov_len) {
165 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
166 }
167
168 name_available_length = indyniov->iov_len - name_offset;
169
170 if (in_name_length > name_available_length) {
171 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
172 }
173
174 in_name_buffer.data = (uint8_t *)indyniov->iov_base + name_offset;
175 in_name_buffer.length = in_name_length;
176
177 if (in_context_offset == 0 && in_context_length == 0) {
178 /* This is ok */
179 context_offset = 0;
180 } else if (in_context_offset < dyn_offset) {
181 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
182 } else {
183 context_offset = in_context_offset - dyn_offset;
184 }
185
186 if (context_offset > indyniov->iov_len) {
187 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
188 }
189
190 context_available_length = indyniov->iov_len - context_offset;
191
192 if (in_context_length > context_available_length) {
193 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
194 }
195
196 in_context_buffer.data = (uint8_t *)indyniov->iov_base +
197 context_offset;
198 in_context_buffer.length = in_context_length;
199
200 /*
201 * Now interpret the name and context buffers
202 */
203
204 ok = convert_string_talloc(smb2req, CH_UTF16, CH_UNIX,
205 in_name_buffer.data,
206 in_name_buffer.length,
207 &in_name_string,
208 &in_name_string_size);
209 if (!ok) {
210 return smbd_smb2_request_error(smb2req, NT_STATUS_ILLEGAL_CHARACTER);
211 }
212
213 if (in_name_buffer.length == 0) {
214 in_name_string_size = 0;
215 }
216
217 if (strlen(in_name_string) != in_name_string_size) {
218 return smbd_smb2_request_error(smb2req, NT_STATUS_OBJECT_NAME_INVALID);
219 }
220
221 ZERO_STRUCT(in_context_blobs);
222 status = smb2_create_blob_parse(smb2req, in_context_buffer, &in_context_blobs);
223 if (!NT_STATUS_IS_OK(status)) {
224 return smbd_smb2_request_error(smb2req, status);
225 }
226
227 tsubreq = smbd_smb2_create_send(smb2req,
228 smb2req->sconn->ev_ctx,
229 smb2req,
230 in_oplock_level,
231 in_impersonation_level,
232 in_desired_access,
233 in_file_attributes,
234 in_share_access,
235 in_create_disposition,
236 in_create_options,
237 in_name_string,
238 in_context_blobs);
239 if (tsubreq == NULL) {
240 smb2req->subreq = NULL;
241 return smbd_smb2_request_error(smb2req, NT_STATUS_NO_MEMORY);
242 }
243 tevent_req_set_callback(tsubreq, smbd_smb2_request_create_done, smb2req);
244
245 return smbd_smb2_request_pending_queue(smb2req, tsubreq, 500);
246 }
247
248 static uint64_t get_mid_from_smb2req(struct smbd_smb2_request *smb2req)
249 {
250 uint8_t *reqhdr = SMBD_SMB2_OUT_HDR_PTR(smb2req);
251 return BVAL(reqhdr, SMB2_HDR_MESSAGE_ID);
252 }
253
254 static void smbd_smb2_request_create_done(struct tevent_req *tsubreq)
255 {
256 struct smbd_smb2_request *smb2req = tevent_req_callback_data(tsubreq,
257 struct smbd_smb2_request);
258 DATA_BLOB outbody;
259 DATA_BLOB outdyn;
260 uint8_t out_oplock_level = 0;
261 uint32_t out_create_action = 0;
262 connection_struct *conn = smb2req->tcon->compat;
263 struct timespec out_creation_ts = { 0, };
264 struct timespec out_last_access_ts = { 0, };
265 struct timespec out_last_write_ts = { 0, };
266 struct timespec out_change_ts = { 0, };
267 uint64_t out_allocation_size = 0;
268 uint64_t out_end_of_file = 0;
269 uint32_t out_file_attributes = 0;
270 uint64_t out_file_id_persistent = 0;
271 uint64_t out_file_id_volatile = 0;
272 struct smb2_create_blobs out_context_blobs;
273 DATA_BLOB out_context_buffer;
274 uint16_t out_context_buffer_offset = 0;
275 NTSTATUS status;
276 NTSTATUS error; /* transport error */
277
278 status = smbd_smb2_create_recv(tsubreq,
279 smb2req,
280 &out_oplock_level,
281 &out_create_action,
282 &out_creation_ts,
283 &out_last_access_ts,
284 &out_last_write_ts,
285 &out_change_ts,
286 &out_allocation_size,
287 &out_end_of_file,
288 &out_file_attributes,
289 &out_file_id_persistent,
290 &out_file_id_volatile,
291 &out_context_blobs);
292 if (!NT_STATUS_IS_OK(status)) {
293 error = smbd_smb2_request_error(smb2req, status);
294 if (!NT_STATUS_IS_OK(error)) {
295 smbd_server_connection_terminate(smb2req->xconn,
296 nt_errstr(error));
297 return;
298 }
299 return;
300 }
301
302 status = smb2_create_blob_push(smb2req, &out_context_buffer, out_context_blobs);
303 if (!NT_STATUS_IS_OK(status)) {
304 error = smbd_smb2_request_error(smb2req, status);
305 if (!NT_STATUS_IS_OK(error)) {
306 smbd_server_connection_terminate(smb2req->xconn,
307 nt_errstr(error));
308 return;
309 }
310 return;
311 }
312
313 if (out_context_buffer.length > 0) {
314 out_context_buffer_offset = SMB2_HDR_BODY + 0x58;
315 }
316
317 outbody = smbd_smb2_generate_outbody(smb2req, 0x58);
318 if (outbody.data == NULL) {
319 error = smbd_smb2_request_error(smb2req, NT_STATUS_NO_MEMORY);
320 if (!NT_STATUS_IS_OK(error)) {
321 smbd_server_connection_terminate(smb2req->xconn,
322 nt_errstr(error));
323 return;
324 }
325 return;
326 }
327
328 SSVAL(outbody.data, 0x00, 0x58 + 1); /* struct size */
329 SCVAL(outbody.data, 0x02,
330 out_oplock_level); /* oplock level */
331 SCVAL(outbody.data, 0x03, 0); /* reserved */
332 SIVAL(outbody.data, 0x04,
333 out_create_action); /* create action */
334 put_long_date_timespec(conn->ts_res,
335 (char *)outbody.data + 0x08,
336 out_creation_ts); /* creation time */
337 put_long_date_timespec(conn->ts_res,
338 (char *)outbody.data + 0x10,
339 out_last_access_ts); /* last access time */
340 put_long_date_timespec(conn->ts_res,
341 (char *)outbody.data + 0x18,
342 out_last_write_ts); /* last write time */
343 put_long_date_timespec(conn->ts_res,
344 (char *)outbody.data + 0x20,
345 out_change_ts); /* change time */
346 SBVAL(outbody.data, 0x28,
347 out_allocation_size); /* allocation size */
348 SBVAL(outbody.data, 0x30,
349 out_end_of_file); /* end of file */
350 SIVAL(outbody.data, 0x38,
351 out_file_attributes); /* file attributes */
352 SIVAL(outbody.data, 0x3C, 0); /* reserved */
353 SBVAL(outbody.data, 0x40,
354 out_file_id_persistent); /* file id (persistent) */
355 SBVAL(outbody.data, 0x48,
356 out_file_id_volatile); /* file id (volatile) */
357 SIVAL(outbody.data, 0x50,
358 out_context_buffer_offset); /* create contexts offset */
359 SIVAL(outbody.data, 0x54,
360 out_context_buffer.length); /* create contexts length */
361
362 outdyn = out_context_buffer;
363
364 error = smbd_smb2_request_done(smb2req, outbody, &outdyn);
365 if (!NT_STATUS_IS_OK(error)) {
366 smbd_server_connection_terminate(smb2req->xconn,
367 nt_errstr(error));
368 return;
369 }
370 }
371
372 static bool smb2_lease_key_valid(const struct smb2_lease_key *key)
373 {
374 return ((key->data[0] != 0) || (key->data[1] != 0));
375 }
376
377 static NTSTATUS smbd_smb2_create_durable_lease_check(
378 const char *requested_filename, const struct files_struct *fsp,
379 const struct smb2_lease *lease_ptr)
380 {
381 struct smb_filename *smb_fname = NULL;
382 NTSTATUS status;
383
384 if (lease_ptr == NULL) {
385 if (fsp->oplock_type != LEASE_OPLOCK) {
386 return NT_STATUS_OK;
387 }
388 DEBUG(10, ("Reopened file has lease, but no lease "
389 "requested\n"));
390 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
391 }
392
393 if (fsp->oplock_type != LEASE_OPLOCK) {
394 DEBUG(10, ("Lease requested, but reopened file has no "
395 "lease\n"));
396 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
397 }
398
399 if (!smb2_lease_key_equal(&lease_ptr->lease_key,
400 &fsp->lease->lease.lease_key)) {
401 DEBUG(10, ("Different lease key requested than found "
402 "in reopened file\n"));
403 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
404 }
405
406 status = filename_convert(talloc_tos(), fsp->conn, false,
407 requested_filename, UCF_PREP_CREATEFILE,
408 NULL, &smb_fname);
409 if (!NT_STATUS_IS_OK(status)) {
410 DEBUG(10, ("filename_convert returned %s\n",
411 nt_errstr(status)));
412 return status;
413 }
414
415 if (!strequal(fsp->fsp_name->base_name, smb_fname->base_name)) {
416 DEBUG(10, ("Lease requested for file %s, reopened file "
417 "is named %s\n", smb_fname->base_name,
418 fsp->fsp_name->base_name));
419 TALLOC_FREE(smb_fname);
420 return NT_STATUS_INVALID_PARAMETER;
421 }
422
423 TALLOC_FREE(smb_fname);
424
425 return NT_STATUS_OK;
426 }
427
428 struct smbd_smb2_create_state {
429 struct smbd_smb2_request *smb2req;
430 struct smb_request *smb1req;
431 bool open_was_deferred;
432 struct tevent_timer *te;
433 struct tevent_immediate *im;
434 struct timeval request_time;
435 struct file_id id;
436 struct deferred_open_record *open_rec;
437 uint8_t out_oplock_level;
438 uint32_t out_create_action;
439 struct timespec out_creation_ts;
440 struct timespec out_last_access_ts;
441 struct timespec out_last_write_ts;
442 struct timespec out_change_ts;
443 uint64_t out_allocation_size;
444 uint64_t out_end_of_file;
445 uint32_t out_file_attributes;
446 uint64_t out_file_id_persistent;
447 uint64_t out_file_id_volatile;
448 struct smb2_create_blobs *out_context_blobs;
449 };
450
451 static struct tevent_req *smbd_smb2_create_send(TALLOC_CTX *mem_ctx,
452 struct tevent_context *ev,
453 struct smbd_smb2_request *smb2req,
454 uint8_t in_oplock_level,
455 uint32_t in_impersonation_level,
456 uint32_t in_desired_access,
457 uint32_t in_file_attributes,
458 uint32_t in_share_access,
459 uint32_t in_create_disposition,
460 uint32_t in_create_options,
461 const char *in_name,
462 struct smb2_create_blobs in_context_blobs)
463 {
464 struct tevent_req *req = NULL;
465 struct smbd_smb2_create_state *state = NULL;
466 NTSTATUS status;
467 struct smb_request *smb1req = NULL;
468 files_struct *result = NULL;
469 int info;
470 int requested_oplock_level;
471 struct smb2_create_blob *dhnc = NULL;
472 struct smb2_create_blob *dh2c = NULL;
473 struct smb2_create_blob *dhnq = NULL;
474 struct smb2_create_blob *dh2q = NULL;
475 struct smb2_create_blob *rqls = NULL;
476 struct smbXsrv_open *op = NULL;
477
478 if(lp_fake_oplocks(SNUM(smb2req->tcon->compat))) {
479 requested_oplock_level = SMB2_OPLOCK_LEVEL_NONE;
480 } else {
481 requested_oplock_level = in_oplock_level;
482 }
483
484
485 if (smb2req->subreq == NULL) {
486 /* New create call. */
487 req = tevent_req_create(mem_ctx, &state,
488 struct smbd_smb2_create_state);
489 if (req == NULL) {
490 return NULL;
491 }
492 state->smb2req = smb2req;
493
494 smb1req = smbd_smb2_fake_smb_request(smb2req);
495 if (tevent_req_nomem(smb1req, req)) {
496 return tevent_req_post(req, ev);
497 }
498 state->smb1req = smb1req;
499 smb2req->subreq = req;
500 DEBUG(10,("smbd_smb2_create: name[%s]\n",
501 in_name));
502 } else {
503 /* Re-entrant create call. */
504 req = smb2req->subreq;
505 state = tevent_req_data(req,
506 struct smbd_smb2_create_state);
507 smb1req = state->smb1req;
508 TALLOC_FREE(state->out_context_blobs);
509 DEBUG(10,("smbd_smb2_create_send: reentrant for file %s\n",
510 in_name ));
511 }
512
513 state->out_context_blobs = talloc_zero(state, struct smb2_create_blobs);
514 if (tevent_req_nomem(state->out_context_blobs, req)) {
515 return tevent_req_post(req, ev);
516 }
517
518 dhnq = smb2_create_blob_find(&in_context_blobs,
519 SMB2_CREATE_TAG_DHNQ);
520 dhnc = smb2_create_blob_find(&in_context_blobs,
521 SMB2_CREATE_TAG_DHNC);
522 dh2q = smb2_create_blob_find(&in_context_blobs,
523 SMB2_CREATE_TAG_DH2Q);
524 dh2c = smb2_create_blob_find(&in_context_blobs,
525 SMB2_CREATE_TAG_DH2C);
526 if (smb2req->xconn->smb2.server.capabilities & SMB2_CAP_LEASING) {
527 rqls = smb2_create_blob_find(&in_context_blobs,
528 SMB2_CREATE_TAG_RQLS);
529 }
530
531 if ((dhnc && dh2c) || (dhnc && dh2q) || (dh2c && dhnq) ||
532 (dh2q && dh2c))
533 {
534 /* not both are allowed at the same time */
535 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
536 return tevent_req_post(req, ev);
537 }
538
539 if (dhnc) {
540 uint32_t num_blobs_allowed;
541
542 if (dhnc->data.length != 16) {
543 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
544 return tevent_req_post(req, ev);
545 }
546
547 /*
548 * According to MS-SMB2: 3.3.5.9.7, "Handling the
549 * SMB2_CREATE_DURABLE_HANDLE_RECONNECT Create Context",
550 * we should ignore an additional dhnq blob, but fail
551 * the request (with status OBJECT_NAME_NOT_FOUND) if
552 * any other extra create blob has been provided.
553 *
554 * (Note that the cases of an additional dh2q or dh2c blob
555 * which require a different error code, have been treated
556 * above.)
557 *
558 * TODO:
559 * This is only true for the oplock case:
560 * For leases, lease request is required additionally.
561 */
562
563 if (dhnq) {
564 num_blobs_allowed = 2;
565 } else {
566 num_blobs_allowed = 1;
567 }
568
569 if (rqls != NULL) {
570 num_blobs_allowed += 1;
571 }
572
573 if (in_context_blobs.num_blobs != num_blobs_allowed) {
574 tevent_req_nterror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND);
575 return tevent_req_post(req, ev);
576 }
577 }
578
579 if (dh2c) {
580 uint32_t num_blobs_allowed;
581
582 if (dh2c->data.length != 36) {
583 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
584 return tevent_req_post(req, ev);
585 }
586
587 /*
588 * According to MS-SMB2: 3.3.5.9.12, "Handling the
589 * SMB2_CREATE_DURABLE_HANDLE_RECONNECT_V2 Create Context",
590 * we should fail the request with status
591 * OBJECT_NAME_NOT_FOUND if any other create blob has been
592 * provided.
593 *
594 * (Note that the cases of an additional dhnq, dhnc or dh2q
595 * blob which require a different error code, have been
596 * treated above.)
597 *
598 * TODO:
599 * This is only true for the oplock case:
600 * For leases, lease request is required additionally!
601 */
602
603 num_blobs_allowed = 1;
604
605 if (rqls != NULL) {
606 num_blobs_allowed += 1;
607 }
608
609 if (in_context_blobs.num_blobs != num_blobs_allowed) {
610 tevent_req_nterror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND);
611 return tevent_req_post(req, ev);
612 }
613 }
614
615 if (IS_IPC(smb1req->conn)) {
616 const char *pipe_name = in_name;
617
618 if (dhnc || dh2c) {
619 /* durable handles are not supported on IPC$ */
620 tevent_req_nterror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND);
621 return tevent_req_post(req, ev);
622 }
623
624 if (!lp_nt_pipe_support()) {
625 tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
626 return tevent_req_post(req, ev);
627 }
628
629 status = open_np_file(smb1req, pipe_name, &result);
630 if (!NT_STATUS_IS_OK(status)) {
631 tevent_req_nterror(req, status);
632 return tevent_req_post(req, ev);
633 }
634 info = FILE_WAS_OPENED;
635 } else if (CAN_PRINT(smb1req->conn)) {
636 if (dhnc || dh2c) {
637 /* durable handles are not supported on printers */
638 tevent_req_nterror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND);
639 return tevent_req_post(req, ev);
640 }
641
642 status = file_new(smb1req, smb1req->conn, &result);
643 if(!NT_STATUS_IS_OK(status)) {
644 tevent_req_nterror(req, status);
645 return tevent_req_post(req, ev);
646 }
647
648 status = print_spool_open(result, in_name,
649 smb1req->vuid);
650 if (!NT_STATUS_IS_OK(status)) {
651 file_free(smb1req, result);
652 tevent_req_nterror(req, status);
653 return tevent_req_post(req, ev);
654 }
655 info = FILE_WAS_CREATED;
656 } else {
657 char *fname;
658 struct smb2_create_blob *exta = NULL;
659 struct ea_list *ea_list = NULL;
660 struct smb2_create_blob *mxac = NULL;
661 NTTIME max_access_time = 0;
662 struct smb2_create_blob *secd = NULL;
663 struct security_descriptor *sec_desc = NULL;
664 struct smb2_create_blob *alsi = NULL;
665 uint64_t allocation_size = 0;
666 struct smb2_create_blob *twrp = NULL;
667 struct smb2_create_blob *qfid = NULL;
668 struct GUID _create_guid = GUID_zero();
669 struct GUID *create_guid = NULL;
670 bool update_open = false;
671 bool durable_requested = false;
672 uint32_t durable_timeout_msec = 0;
673 bool do_durable_reconnect = false;
674 uint64_t persistent_id = 0;
675 struct smb2_lease lease;
676 struct smb2_lease *lease_ptr = NULL;
677 ssize_t lease_len = -1;
678 struct smb2_create_blob *svhdx = NULL;
679
680 exta = smb2_create_blob_find(&in_context_blobs,
681 SMB2_CREATE_TAG_EXTA);
682 mxac = smb2_create_blob_find(&in_context_blobs,
683 SMB2_CREATE_TAG_MXAC);
684 secd = smb2_create_blob_find(&in_context_blobs,
685 SMB2_CREATE_TAG_SECD);
686 alsi = smb2_create_blob_find(&in_context_blobs,
687 SMB2_CREATE_TAG_ALSI);
688 twrp = smb2_create_blob_find(&in_context_blobs,
689 SMB2_CREATE_TAG_TWRP);
690 qfid = smb2_create_blob_find(&in_context_blobs,
691 SMB2_CREATE_TAG_QFID);
692 if (smb2req->xconn->protocol >= PROTOCOL_SMB3_02) {
693 /*
694 * This was introduced with SMB3_02
695 */
696 svhdx = smb2_create_blob_find(&in_context_blobs,
697 SVHDX_OPEN_DEVICE_CONTEXT);
698 }
699
700 fname = talloc_strdup(state, in_name);
701 if (tevent_req_nomem(fname, req)) {
702 return tevent_req_post(req, ev);
703 }
704
705 if (exta) {
706 ea_list = read_nttrans_ea_list(mem_ctx,
707 (const char *)exta->data.data, exta->data.length);
708 if (!ea_list) {
709 DEBUG(10,("smbd_smb2_create_send: read_ea_name_list failed.\n"));
710 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
711 return tevent_req_post(req, ev);
712 }
713
714 if (ea_list_has_invalid_name(ea_list)) {
715 tevent_req_nterror(req, STATUS_INVALID_EA_NAME);
716 return tevent_req_post(req, ev);
717 }
718 }
719
720 if (mxac) {
721 if (mxac->data.length == 0) {
722 max_access_time = 0;
723 } else if (mxac->data.length == 8) {
724 max_access_time = BVAL(mxac->data.data, 0);
725 } else {
726 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
727 return tevent_req_post(req, ev);
728 }
729 }
730
731 if (secd) {
732 enum ndr_err_code ndr_err;
733
734 sec_desc = talloc_zero(state, struct security_descriptor);
735 if (tevent_req_nomem(sec_desc, req)) {
736 return tevent_req_post(req, ev);
737 }
738
739 ndr_err = ndr_pull_struct_blob(&secd->data,
740 sec_desc, sec_desc,
741 (ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
742 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
743 DEBUG(2,("ndr_pull_security_descriptor failed: %s\n",
744 ndr_errstr(ndr_err)));
745 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
746 return tevent_req_post(req, ev);
747 }
748 }
749
750 if (dhnq) {
751 if (dhnq->data.length != 16) {
752 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
753 return tevent_req_post(req, ev);
754 }
755
756 if (dh2q) {
757 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
758 return tevent_req_post(req, ev);
759 }
760
761 /*
762 * durable handle request is processed below.
763 */
764 durable_requested = true;
765 /*
766 * Set the timeout to 16 mins.
767 *
768 * TODO: test this against Windows 2012
769 * as the default for durable v2 is 1 min.
770 */
771 durable_timeout_msec = (16*60*1000);
772 }
773
774 if (dh2q) {
775 const uint8_t *p = dh2q->data.data;
776 uint32_t durable_v2_timeout = 0;
777 DATA_BLOB create_guid_blob;
778
779 if (dh2q->data.length != 32) {
780 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
781 return tevent_req_post(req, ev);
782 }
783
784 if (dhnq) {
785 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
786 return tevent_req_post(req, ev);
787 }
788
789 durable_v2_timeout = IVAL(p, 0);
790 create_guid_blob = data_blob_const(p + 16, 16);
791
792 status = GUID_from_ndr_blob(&create_guid_blob,
793 &_create_guid);
794 if (tevent_req_nterror(req, status)) {
795 return tevent_req_post(req, ev);
796 }
797 create_guid = &_create_guid;
798 /*
799 * we need to store the create_guid later
800 */
801 update_open = true;
802
803 /*
804 * durable handle v2 request processed below
805 */
806 durable_requested = true;
807 durable_timeout_msec = durable_v2_timeout;
808 if (durable_timeout_msec == 0) {
809 /*
810 * Set the timeout to 1 min as default.
811 *
812 * This matches Windows 2012.
813 */
814 durable_timeout_msec = (60*1000);
815 }
816 }
817
818 if (dhnc) {
819 persistent_id = BVAL(dhnc->data.data, 0);
820
821 do_durable_reconnect = true;
822 }
823
824 if (dh2c) {
825 const uint8_t *p = dh2c->data.data;
826 DATA_BLOB create_guid_blob;
827
828 persistent_id = BVAL(p, 0);
829 create_guid_blob = data_blob_const(p + 16, 16);
830
831 status = GUID_from_ndr_blob(&create_guid_blob,
832 &_create_guid);
833 if (tevent_req_nterror(req, status)) {
834 return tevent_req_post(req, ev);
835 }
836 create_guid = &_create_guid;
837
838 do_durable_reconnect = true;
839 }
840
841 if (alsi) {
842 if (alsi->data.length != 8) {
843 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
844 return tevent_req_post(req, ev);
845 }
846 allocation_size = BVAL(alsi->data.data, 0);
847 }
848
849 if (twrp) {
850 NTTIME nttime;
851 time_t t;
852 struct tm *tm;
853
854 if (twrp->data.length != 8) {
855 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
856 return tevent_req_post(req, ev);
857 }
858
859 nttime = BVAL(twrp->data.data, 0);
860 t = nt_time_to_unix(nttime);
861 tm = gmtime(&t);
862
863 TALLOC_FREE(fname);
864 fname = talloc_asprintf(state,
865 "@GMT-%04u.%02u.%02u-%02u.%02u.%02u\\%s",
866 tm->tm_year + 1900,
867 tm->tm_mon + 1,
868 tm->tm_mday,
869 tm->tm_hour,
870 tm->tm_min,
871 tm->tm_sec,
872 in_name);
873 if (tevent_req_nomem(fname, req)) {
874 return tevent_req_post(req, ev);
875 }
876 }
877
878 if (qfid) {
879 if (qfid->data.length != 0) {
880 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
881 return tevent_req_post(req, ev);
882 }
883 }
884
885 if (rqls) {
886 lease_len = smb2_lease_pull(
887 rqls->data.data, rqls->data.length, &lease);
888 if (lease_len == -1) {
889 tevent_req_nterror(
890 req, NT_STATUS_INVALID_PARAMETER);
891 return tevent_req_post(req, ev);
892 }
893 lease_ptr = &lease;
894
895 if (DEBUGLEVEL >= 10) {
896 DEBUG(10, ("Got lease request size %d\n",
897 (int)lease_len));
898 NDR_PRINT_DEBUG(smb2_lease, lease_ptr);
899 }
900
901 if (!smb2_lease_key_valid(&lease.lease_key)) {
902 lease_ptr = NULL;
903 requested_oplock_level = SMB2_OPLOCK_LEVEL_NONE;
904 }
905
906 if ((smb2req->xconn->protocol < PROTOCOL_SMB3_00) &&
907 (lease.lease_version != 1)) {
908 DEBUG(10, ("v2 lease key only for SMB3\n"));
909 lease_ptr = NULL;
910 }
911 }
912
913 if (svhdx != NULL) {
914 /* SharedVHD is not yet supported */
915 tevent_req_nterror(
916 req, NT_STATUS_INVALID_DEVICE_REQUEST);
917 return tevent_req_post(req, ev);
918 }
919
920 /* these are ignored for SMB2 */
921 in_create_options &= ~(0x10);/* NTCREATEX_OPTIONS_SYNC_ALERT */
922 in_create_options &= ~(0x20);/* NTCREATEX_OPTIONS_ASYNC_ALERT */
923
924 in_file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
925
926 DEBUG(10, ("smbd_smb2_create_send: open execution phase\n"));
927
928 /*
929 * For the backend file open procedure, there are
930 * two possible modes: durable_reconnect or not.
931 */
932 if (do_durable_reconnect) {
933 DATA_BLOB new_cookie = data_blob_null;
934 NTTIME now = timeval_to_nttime(&smb2req->request_time);
935
936 status = smb2srv_open_recreate(smb2req->xconn,
937 smb1req->conn->session_info,
938 persistent_id, create_guid,
939 now, &op);
940 if (!NT_STATUS_IS_OK(status)) {
941 DEBUG(3, ("smbd_smb2_create_send: "
942 "smb2srv_open_recreate failed: %s\n",
943 nt_errstr(status)));
944 tevent_req_nterror(req, status);
945 return tevent_req_post(req, ev);
946 }
947
948 DEBUG(10, ("smb2_create_send: %s to recreate the "
949 "smb2srv_open struct for a durable handle.\n",
950 op->global->durable ? "succeded" : "failed"));
951
952 if (!op->global->durable) {
953 talloc_free(op);
954 tevent_req_nterror(req,
955 NT_STATUS_OBJECT_NAME_NOT_FOUND);
956 return tevent_req_post(req, ev);
957 }
958
959 status = SMB_VFS_DURABLE_RECONNECT(smb1req->conn,
960 smb1req,
961 op, /* smbXsrv_open input */
962 op->global->backend_cookie,
963 op, /* TALLOC_CTX */
964 &result, &new_cookie);
965 if (!NT_STATUS_IS_OK(status)) {
966 NTSTATUS return_status;
967
968 return_status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
969
970 DEBUG(3, ("smbd_smb2_create_send: "
971 "durable_reconnect failed: %s => %s\n",
972 nt_errstr(status),
973 nt_errstr(return_status)));
974
975 tevent_req_nterror(req, return_status);
976 return tevent_req_post(req, ev);
977 }
978
979 DEBUG(10, ("result->oplock_type=%u, lease_ptr==%p\n",
980 (unsigned)result->oplock_type, lease_ptr));
981
982 status = smbd_smb2_create_durable_lease_check(
983 fname, result, lease_ptr);
984 if (!NT_STATUS_IS_OK(status)) {
985 close_file(smb1req, result, SHUTDOWN_CLOSE);
986 tevent_req_nterror(req, status);
987 return tevent_req_post(req, ev);
988 }
989
990 data_blob_free(&op->global->backend_cookie);
991 op->global->backend_cookie = new_cookie;
992
993 op->status = NT_STATUS_OK;
994 op->global->disconnect_time = 0;
995
996 /* save the timout for later update */
997 durable_timeout_msec = op->global->durable_timeout_msec;
998
999 update_open = true;
1000
1001 info = FILE_WAS_OPENED;
1002 } else {
1003 struct smb_filename *smb_fname = NULL;
1004
1005 if (requested_oplock_level == SMB2_OPLOCK_LEVEL_LEASE) {
1006 if (lease_ptr == NULL) {
1007 requested_oplock_level = SMB2_OPLOCK_LEVEL_NONE;
1008 }
1009 } else {
1010 lease_ptr = NULL;
1011 }
1012
1013 /*
1014 * For a DFS path the function parse_dfs_path()
1015 * will do the path processing.
1016 */
1017
1018 if (!(smb1req->flags2 & FLAGS2_DFS_PATHNAMES)) {
1019 /* convert '\\' into '/' */
1020 status = check_path_syntax(fname);
1021 if (!NT_STATUS_IS_OK(status)) {
1022 tevent_req_nterror(req, status);
1023 return tevent_req_post(req, ev);
1024 }
1025 }
1026
1027 status = filename_convert(req,
1028 smb1req->conn,
1029 smb1req->flags2 & FLAGS2_DFS_PATHNAMES,
1030 fname,
1031 UCF_PREP_CREATEFILE,
1032 NULL, /* ppath_contains_wcards */
1033 &smb_fname);
1034 if (!NT_STATUS_IS_OK(status)) {
1035 tevent_req_nterror(req, status);
1036 return tevent_req_post(req, ev);
1037 }
1038
1039 /*
1040 * MS-SMB2: 2.2.13 SMB2 CREATE Request
1041 * ImpersonationLevel ... MUST contain one of the
1042 * following values. The server MUST validate this
1043 * field, but otherwise ignore it.
1044 *
1045 * NB. The source4/torture/smb2/durable_open.c test
1046 * shows this check is only done on real opens, not
1047 * on durable handle-reopens.
1048 */
1049
1050 if (in_impersonation_level >
1051 SMB2_IMPERSONATION_DELEGATE) {
1052 tevent_req_nterror(req,
1053 NT_STATUS_BAD_IMPERSONATION_LEVEL);
1054 return tevent_req_post(req, ev);
1055 }
1056
1057 /*
1058 * We know we're going to do a local open, so now
1059 * we must be protocol strict. JRA.
1060 *
1061 * MS-SMB2: 3.3.5.9 - Receiving an SMB2 CREATE Request
1062 * If the file name length is greater than zero and the
1063 * first character is a path separator character, the
1064 * server MUST fail the request with
1065 * STATUS_INVALID_PARAMETER.
1066 */
1067 if (in_name[0] == '\\' || in_name[0] == '/') {
1068 tevent_req_nterror(req,
1069 NT_STATUS_INVALID_PARAMETER);
1070 return tevent_req_post(req, ev);
1071 }
1072
1073 status = SMB_VFS_CREATE_FILE(smb1req->conn,
1074 smb1req,
1075 0, /* root_dir_fid */
1076 smb_fname,
1077 in_desired_access,
1078 in_share_access,
1079 in_create_disposition,
1080 in_create_options,
1081 in_file_attributes,
1082 map_smb2_oplock_levels_to_samba(requested_oplock_level),
1083 lease_ptr,
1084 allocation_size,
1085 0, /* private_flags */
1086 sec_desc,
1087 ea_list,
1088 &result,
1089 &info,
1090 &in_context_blobs,
1091 state->out_context_blobs);
1092 if (!NT_STATUS_IS_OK(status)) {
1093 if (open_was_deferred(smb1req->xconn, smb1req->mid)) {
1094 SMBPROFILE_IOBYTES_ASYNC_SET_IDLE(smb2req->profile);
1095 return req;
1096 }
1097 tevent_req_nterror(req, status);
1098 return tevent_req_post(req, ev);
1099 }
1100 op = result->op;
1101 }
1102
1103 /*
1104 * here we have op == result->op
1105 */
1106
1107 DEBUG(10, ("smbd_smb2_create_send: "
1108 "response construction phase\n"));
1109
1110 if (mxac) {
1111 NTTIME last_write_time;
1112
1113 last_write_time = unix_timespec_to_nt_time(
1114 result->fsp_name->st.st_ex_mtime);
1115 if (last_write_time != max_access_time) {
1116 uint8_t p[8];
1117 uint32_t max_access_granted;
1118 DATA_BLOB blob = data_blob_const(p, sizeof(p));
1119
1120 status = smbd_calculate_access_mask(smb1req->conn,
1121 result->fsp_name,
1122 false,
1123 SEC_FLAG_MAXIMUM_ALLOWED,
1124 &max_access_granted);
1125
1126 SIVAL(p, 0, NT_STATUS_V(status));
1127 SIVAL(p, 4, max_access_granted);
1128
1129 status = smb2_create_blob_add(
1130 state->out_context_blobs,
1131 state->out_context_blobs,
1132 SMB2_CREATE_TAG_MXAC,
1133 blob);
1134 if (!NT_STATUS_IS_OK(status)) {
1135 tevent_req_nterror(req, status);
1136 return tevent_req_post(req, ev);
1137 }
1138 }
1139 }
1140
1141 if (durable_requested &&
1142 (fsp_lease_type(result) & SMB2_LEASE_HANDLE))
1143 {
1144 status = SMB_VFS_DURABLE_COOKIE(result,
1145 op,
1146 &op->global->backend_cookie);
1147 if (!NT_STATUS_IS_OK(status)) {
1148 op->global->backend_cookie = data_blob_null;
1149 }
1150 }
1151 if (op->global->backend_cookie.length > 0) {
1152 update_open = true;
1153
1154 op->global->durable = true;
1155 op->global->durable_timeout_msec = durable_timeout_msec;
1156 }
1157
1158 if (update_open) {
1159 op->global->create_guid = _create_guid;
1160
1161 status = smbXsrv_open_update(op);
1162 DEBUG(10, ("smb2_create_send: smbXsrv_open_update "
1163 "returned %s\n",
1164 nt_errstr(status)));
1165 if (!NT_STATUS_IS_OK(status)) {
1166 tevent_req_nterror(req, status);
1167 return tevent_req_post(req, ev);
1168 }
1169 }
1170
1171 if (dhnq && op->global->durable) {
1172 uint8_t p[8] = { 0, };
1173 DATA_BLOB blob = data_blob_const(p, sizeof(p));
1174
1175 status = smb2_create_blob_add(state->out_context_blobs,
1176 state->out_context_blobs,
1177 SMB2_CREATE_TAG_DHNQ,
1178 blob);
1179 if (!NT_STATUS_IS_OK(status)) {
1180 tevent_req_nterror(req, status);
1181 return tevent_req_post(req, ev);
1182 }
1183 }
1184
1185 if (dh2q && op->global->durable) {
1186 uint8_t p[8] = { 0, };
1187 DATA_BLOB blob = data_blob_const(p, sizeof(p));
1188 uint32_t durable_v2_response_flags = 0;
1189
1190 SIVAL(p, 0, op->global->durable_timeout_msec);
1191 SIVAL(p, 4, durable_v2_response_flags);
1192
1193 status = smb2_create_blob_add(state->out_context_blobs,
1194 state->out_context_blobs,
1195 SMB2_CREATE_TAG_DH2Q,
1196 blob);
1197 if (!NT_STATUS_IS_OK(status)) {
1198 tevent_req_nterror(req, status);
1199 return tevent_req_post(req, ev);
1200 }
1201 }
1202
1203 if (qfid) {
1204 uint8_t p[32];
1205 uint64_t file_index = get_FileIndex(result->conn,
1206 &result->fsp_name->st);
1207 DATA_BLOB blob = data_blob_const(p, sizeof(p));
1208
1209 ZERO_STRUCT(p);
1210
1211 /* From conversations with Microsoft engineers at
1212 the MS plugfest. The first 8 bytes are the "volume index"
1213 == inode, the second 8 bytes are the "volume id",
1214 == dev. This will be updated in the SMB2 doc. */
1215 SBVAL(p, 0, file_index);
1216 SIVAL(p, 8, result->fsp_name->st.st_ex_dev);/* FileIndexHigh */
1217
1218 status = smb2_create_blob_add(state->out_context_blobs,
1219 state->out_context_blobs,
1220 SMB2_CREATE_TAG_QFID,
1221 blob);
1222 if (!NT_STATUS_IS_OK(status)) {
1223 tevent_req_nterror(req, status);
1224 return tevent_req_post(req, ev);
1225 }
1226 }
1227
1228 if ((rqls != NULL) && (result->oplock_type == LEASE_OPLOCK)) {
1229 uint8_t buf[52];
1230
1231 lease = result->lease->lease;
1232
1233 lease_len = sizeof(buf);
1234 if (lease.lease_version == 1) {
1235 lease_len = 32;
1236 }
1237
1238 if (!smb2_lease_push(&lease, buf, lease_len)) {
1239 tevent_req_nterror(
1240 req, NT_STATUS_INTERNAL_ERROR);
1241 return tevent_req_post(req, ev);
1242 }
1243
1244 status = smb2_create_blob_add(
1245 state, state->out_context_blobs,
1246 SMB2_CREATE_TAG_RQLS,
1247 data_blob_const(buf, lease_len));
1248 if (!NT_STATUS_IS_OK(status)) {
1249 tevent_req_nterror(req, status);
1250 return tevent_req_post(req, ev);
1251 }
1252 }
1253 }
1254
1255 smb2req->compat_chain_fsp = smb1req->chain_fsp;
1256
1257 if(lp_fake_oplocks(SNUM(smb2req->tcon->compat))) {
1258 state->out_oplock_level = in_oplock_level;
1259 } else {
1260 state->out_oplock_level = map_samba_oplock_levels_to_smb2(result->oplock_type);
1261 }
1262
1263 if ((in_create_disposition == FILE_SUPERSEDE)
1264 && (info == FILE_WAS_OVERWRITTEN)) {
1265 state->out_create_action = FILE_WAS_SUPERSEDED;
1266 } else {
1267 state->out_create_action = info;
1268 }
1269 state->out_file_attributes = dos_mode(result->conn,
1270 result->fsp_name);
1271
1272 state->out_creation_ts = get_create_timespec(smb1req->conn,
1273 result, result->fsp_name);
1274 state->out_last_access_ts = result->fsp_name->st.st_ex_atime;
1275 state->out_last_write_ts = result->fsp_name->st.st_ex_mtime;
1276 state->out_change_ts = get_change_timespec(smb1req->conn,
1277 result, result->fsp_name);
1278 state->out_allocation_size =
1279 SMB_VFS_GET_ALLOC_SIZE(smb1req->conn, result,
1280 &(result->fsp_name->st));
1281 state->out_end_of_file = result->fsp_name->st.st_ex_size;
1282 if (state->out_file_attributes == 0) {
1283 state->out_file_attributes = FILE_ATTRIBUTE_NORMAL;
1284 }
1285 state->out_file_id_persistent = result->op->global->open_persistent_id;
1286 state->out_file_id_volatile = result->op->global->open_volatile_id;
1287
1288 DEBUG(10,("smbd_smb2_create_send: %s - %s\n",
1289 fsp_str_dbg(result), fsp_fnum_dbg(result)));
1290
1291 tevent_req_done(req);
1292 return tevent_req_post(req, ev);
1293 }
1294
1295 static NTSTATUS smbd_smb2_create_recv(struct tevent_req *req,
1296 TALLOC_CTX *mem_ctx,
1297 uint8_t *out_oplock_level,
1298 uint32_t *out_create_action,
1299 struct timespec *out_creation_ts,
1300 struct timespec *out_last_access_ts,
1301 struct timespec *out_last_write_ts,
1302 struct timespec *out_change_ts,
1303 uint64_t *out_allocation_size,
1304 uint64_t *out_end_of_file,
1305 uint32_t *out_file_attributes,
1306 uint64_t *out_file_id_persistent,
1307 uint64_t *out_file_id_volatile,
1308 struct smb2_create_blobs *out_context_blobs)
1309 {
1310 NTSTATUS status;
1311 struct smbd_smb2_create_state *state = tevent_req_data(req,
1312 struct smbd_smb2_create_state);
1313
1314 if (tevent_req_is_nterror(req, &status)) {
1315 tevent_req_received(req);
1316 return status;
1317 }
1318
1319 *out_oplock_level = state->out_oplock_level;
1320 *out_create_action = state->out_create_action;
1321 *out_creation_ts = state->out_creation_ts;
1322 *out_last_access_ts = state->out_last_access_ts;
1323 *out_last_write_ts = state->out_last_write_ts;
1324 *out_change_ts = state->out_change_ts;
1325 *out_allocation_size = state->out_allocation_size;
1326 *out_end_of_file = state->out_end_of_file;
1327 *out_file_attributes = state->out_file_attributes;
1328 *out_file_id_persistent = state->out_file_id_persistent;
1329 *out_file_id_volatile = state->out_file_id_volatile;
1330 *out_context_blobs = *(state->out_context_blobs);
1331
1332 talloc_steal(mem_ctx, state->out_context_blobs->blobs);
1333
1334 tevent_req_received(req);
1335 return NT_STATUS_OK;
1336 }
1337
1338 /*********************************************************
1339 Code for dealing with deferred opens.
1340 *********************************************************/
1341
1342 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request *smb2req,
1343 struct timeval *p_request_time,
1344 struct deferred_open_record **open_rec)
1345 {
1346 struct smbd_smb2_create_state *state = NULL;
1347 struct tevent_req *req = NULL;
1348
1349 if (!smb2req) {
1350 return false;
1351 }
1352 req = smb2req->subreq;
1353 if (!req) {
1354 return false;
1355 }
1356 state = tevent_req_data(req, struct smbd_smb2_create_state);
1357 if (!state) {
1358 return false;
1359 }
1360 if (!state->open_was_deferred) {
1361 return false;
1362 }
1363 if (p_request_time) {
1364 *p_request_time = state->request_time;
1365 }
1366 if (open_rec != NULL) {
1367 *open_rec = state->open_rec;
1368 }
1369 return true;
1370 }
1371
1372 /*********************************************************
1373 Re-process this call early - requested by message or
1374 close.
1375 *********************************************************/
1376
1377 static struct smbd_smb2_request *find_open_smb2req(
1378 struct smbXsrv_connection *xconn, uint64_t mid)
1379 {
1380 struct smbd_smb2_request *smb2req;
1381
1382 for (smb2req = xconn->smb2.requests; smb2req; smb2req = smb2req->next) {
1383 uint64_t message_id;
1384 if (smb2req->subreq == NULL) {
1385 /* This message has been processed. */
1386 continue;
1387 }
1388 if (!tevent_req_is_in_progress(smb2req->subreq)) {
1389 /* This message has been processed. */
1390 continue;
1391 }
1392 message_id = get_mid_from_smb2req(smb2req);
1393 if (message_id == mid) {
1394 return smb2req;
1395 }
1396 }
1397 return NULL;
1398 }
1399
1400 bool open_was_deferred_smb2(struct smbXsrv_connection *xconn, uint64_t mid)
1401 {
1402 struct smbd_smb2_create_state *state = NULL;
1403 struct smbd_smb2_request *smb2req;
1404
1405 smb2req = find_open_smb2req(xconn, mid);
1406
1407 if (!smb2req) {
1408 DEBUG(10,("open_was_deferred_smb2: mid %llu smb2req == NULL\n",
1409 (unsigned long long)mid));
1410 return false;
1411 }
1412 if (!smb2req->subreq) {
1413 return false;
1414 }
1415 if (!tevent_req_is_in_progress(smb2req->subreq)) {
1416 return false;
1417 }
1418 state = tevent_req_data(smb2req->subreq,
1419 struct smbd_smb2_create_state);
1420 if (!state) {
1421 return false;
1422 }
1423 /* It's not in progress if there's no timeout event. */
1424 if (!state->open_was_deferred) {
1425 return false;
1426 }
1427
1428 DEBUG(10,("open_was_deferred_smb2: mid = %llu\n",
1429 (unsigned long long)mid));
1430
1431 return true;
1432 }
1433
1434 static void remove_deferred_open_message_smb2_internal(struct smbd_smb2_request *smb2req,
1435 uint64_t mid)
1436 {
1437 struct smbd_smb2_create_state *state = NULL;
1438
1439 if (!smb2req->subreq) {
1440 return;
1441 }
1442 if (!tevent_req_is_in_progress(smb2req->subreq)) {
1443 return;
1444 }
1445 state = tevent_req_data(smb2req->subreq,
1446 struct smbd_smb2_create_state);
1447 if (!state) {
1448 return;
1449 }
1450
1451 DEBUG(10,("remove_deferred_open_message_smb2_internal: "
1452 "mid %llu\n",
1453 (unsigned long long)mid ));
1454
1455 state->open_was_deferred = false;
1456 /* Ensure we don't have any outstanding timer event. */
1457 TALLOC_FREE(state->te);
1458 /* Ensure we don't have any outstanding immediate event. */
1459 TALLOC_FREE(state->im);
1460 }
1461
1462 void remove_deferred_open_message_smb2(
1463 struct smbXsrv_connection *xconn, uint64_t mid)
1464 {
1465 struct smbd_smb2_request *smb2req;
1466
1467 smb2req = find_open_smb2req(xconn, mid);
1468
1469 if (!smb2req) {
1470 DEBUG(10,("remove_deferred_open_message_smb2: "
1471 "can't find mid %llu\n",
1472 (unsigned long long)mid ));
1473 return;
1474 }
1475 remove_deferred_open_message_smb2_internal(smb2req, mid);
1476 }
1477
1478 static void smbd_smb2_create_request_dispatch_immediate(struct tevent_context *ctx,
1479 struct tevent_immediate *im,
1480 void *private_data)
1481 {
1482 struct smbd_smb2_request *smb2req = talloc_get_type_abort(private_data,
1483 struct smbd_smb2_request);
1484 uint64_t mid = get_mid_from_smb2req(smb2req);
1485 NTSTATUS status;
1486
1487 DEBUG(10,("smbd_smb2_create_request_dispatch_immediate: "
1488 "re-dispatching mid %llu\n",
1489 (unsigned long long)mid ));
1490
1491 status = smbd_smb2_request_dispatch(smb2req);
1492 if (!NT_STATUS_IS_OK(status)) {
1493 smbd_server_connection_terminate(smb2req->xconn,
1494 nt_errstr(status));
1495 return;
1496 }
1497 }
1498
1499 bool schedule_deferred_open_message_smb2(
1500 struct smbXsrv_connection *xconn, uint64_t mid)
1501 {
1502 struct smbd_smb2_create_state *state = NULL;
1503 struct smbd_smb2_request *smb2req;
1504
1505 smb2req = find_open_smb2req(xconn, mid);
1506
1507 if (!smb2req) {
1508 DEBUG(10,("schedule_deferred_open_message_smb2: "
1509 "can't find mid %llu\n",
1510 (unsigned long long)mid ));
1511 return false;
1512 }
1513 if (!smb2req->subreq) {
1514 return false;
1515 }
1516 if (!tevent_req_is_in_progress(smb2req->subreq)) {
1517 return false;
1518 }
1519 state = tevent_req_data(smb2req->subreq,
1520 struct smbd_smb2_create_state);
1521 if (!state) {
1522 return false;
1523 }
1524
1525 /* Ensure we don't have any outstanding timer event. */
1526 TALLOC_FREE(state->te);
1527 /* Ensure we don't have any outstanding immediate event. */
1528 TALLOC_FREE(state->im);
1529
1530 /*
1531 * This is subtle. We must null out the callback
1532 * before rescheduling, else the first call to
1533 * tevent_req_nterror() causes the _receive()
1534 * function to be called, this causing tevent_req_post()
1535 * to crash.
1536 */
1537 tevent_req_set_callback(smb2req->subreq, NULL, NULL);
1538
1539 state->im = tevent_create_immediate(smb2req);
1540 if (!state->im) {
1541 smbd_server_connection_terminate(smb2req->xconn,
1542 nt_errstr(NT_STATUS_NO_MEMORY));
1543 return false;
1544 }
1545
1546 DEBUG(10,("schedule_deferred_open_message_smb2: "
1547 "re-processing mid %llu\n",
1548 (unsigned long long)mid ));
1549
1550 tevent_schedule_immediate(state->im,
1551 smb2req->sconn->ev_ctx,
1552 smbd_smb2_create_request_dispatch_immediate,
1553 smb2req);
1554
1555 return true;
1556 }
1557
1558 static bool smbd_smb2_create_cancel(struct tevent_req *req)
1559 {
1560 struct smbd_smb2_request *smb2req = NULL;
1561 struct smbd_smb2_create_state *state = tevent_req_data(req,
1562 struct smbd_smb2_create_state);
1563 uint64_t mid;
1564
1565 if (!state) {
1566 return false;
1567 }
1568
1569 if (!state->smb2req) {
1570 return false;
1571 }
1572
1573 smb2req = state->smb2req;
1574 mid = get_mid_from_smb2req(smb2req);
1575
1576 if (is_deferred_open_async(state->open_rec)) {
1577 /* Can't cancel an async create. */
1578 return false;
1579 }
1580
1581 remove_deferred_open_message_smb2_internal(smb2req, mid);
1582
1583 tevent_req_defer_callback(req, smb2req->sconn->ev_ctx);
1584 tevent_req_nterror(req, NT_STATUS_CANCELLED);
1585 return true;
1586 }
1587
1588 bool push_deferred_open_message_smb2(struct smbd_smb2_request *smb2req,
1589 struct timeval request_time,
1590 struct timeval timeout,
1591 struct file_id id,
1592 struct deferred_open_record *open_rec)
1593 {
1594 struct tevent_req *req = NULL;
1595 struct smbd_smb2_create_state *state = NULL;
1596 struct timeval end_time;
1597
1598 if (!smb2req) {
1599 return false;
1600 }
1601 req = smb2req->subreq;
1602 if (!req) {
1603 return false;
1604 }
1605 state = tevent_req_data(req, struct smbd_smb2_create_state);
1606 if (!state) {
1607 return false;
1608 }
1609 state->id = id;
1610 state->request_time = request_time;
1611 state->open_rec = talloc_move(state, &open_rec);
1612
1613 /* Re-schedule us to retry on timer expiry. */
1614 end_time = timeval_sum(&request_time, &timeout);
1615
1616 DEBUG(10,("push_deferred_open_message_smb2: "
1617 "timeout at %s\n",
1618 timeval_string(talloc_tos(),
1619 &end_time,
1620 true) ));
1621
1622 state->open_was_deferred = true;
1623
1624 /* allow this request to be canceled */
1625 tevent_req_set_cancel_fn(req, smbd_smb2_create_cancel);
1626
1627 return true;
1628 }
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