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negoex.idl: use DATA_BLOB for negoex_BYTE_VECTOR
[Samba.git] / source3 / smbd / smb2_create.c
blob1b12962f4575faa279ff84fd443792ba7a053a56
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 #if 0
679 struct smb2_create_blob *svhdx = NULL;
680 #endif
681
682 exta = smb2_create_blob_find(&in_context_blobs,
683 SMB2_CREATE_TAG_EXTA);
684 mxac = smb2_create_blob_find(&in_context_blobs,
685 SMB2_CREATE_TAG_MXAC);
686 secd = smb2_create_blob_find(&in_context_blobs,
687 SMB2_CREATE_TAG_SECD);
688 alsi = smb2_create_blob_find(&in_context_blobs,
689 SMB2_CREATE_TAG_ALSI);
690 twrp = smb2_create_blob_find(&in_context_blobs,
691 SMB2_CREATE_TAG_TWRP);
692 qfid = smb2_create_blob_find(&in_context_blobs,
693 SMB2_CREATE_TAG_QFID);
694 #if 0
695 if (smb2req->xconn->protocol >= PROTOCOL_SMB3_02) {
696 /*
697 * This was introduced with SMB3_02
698 */
699 svhdx = smb2_create_blob_find(&in_context_blobs,
700 SVHDX_OPEN_DEVICE_CONTEXT);
701 }
702 #endif
703
704 fname = talloc_strdup(state, in_name);
705 if (tevent_req_nomem(fname, req)) {
706 return tevent_req_post(req, ev);
707 }
708
709 if (exta) {
710 if (!lp_ea_support(SNUM(smb2req->tcon->compat))) {
711 tevent_req_nterror(req,
712 NT_STATUS_EAS_NOT_SUPPORTED);
713 return tevent_req_post(req, ev);
714 }
715
716 ea_list = read_nttrans_ea_list(mem_ctx,
717 (const char *)exta->data.data, exta->data.length);
718 if (!ea_list) {
719 DEBUG(10,("smbd_smb2_create_send: read_ea_name_list failed.\n"));
720 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
721 return tevent_req_post(req, ev);
722 }
723
724 if (ea_list_has_invalid_name(ea_list)) {
725 tevent_req_nterror(req, STATUS_INVALID_EA_NAME);
726 return tevent_req_post(req, ev);
727 }
728 }
729
730 if (mxac) {
731 if (mxac->data.length == 0) {
732 max_access_time = 0;
733 } else if (mxac->data.length == 8) {
734 max_access_time = BVAL(mxac->data.data, 0);
735 } else {
736 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
737 return tevent_req_post(req, ev);
738 }
739 }
740
741 if (secd) {
742 enum ndr_err_code ndr_err;
743
744 sec_desc = talloc_zero(state, struct security_descriptor);
745 if (tevent_req_nomem(sec_desc, req)) {
746 return tevent_req_post(req, ev);
747 }
748
749 ndr_err = ndr_pull_struct_blob(&secd->data,
750 sec_desc, sec_desc,
751 (ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
752 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
753 DEBUG(2,("ndr_pull_security_descriptor failed: %s\n",
754 ndr_errstr(ndr_err)));
755 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
756 return tevent_req_post(req, ev);
757 }
758 }
759
760 if (dhnq) {
761 if (dhnq->data.length != 16) {
762 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
763 return tevent_req_post(req, ev);
764 }
765
766 if (dh2q) {
767 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
768 return tevent_req_post(req, ev);
769 }
770
771 /*
772 * durable handle request is processed below.
773 */
774 durable_requested = true;
775 /*
776 * Set the timeout to 16 mins.
777 *
778 * TODO: test this against Windows 2012
779 * as the default for durable v2 is 1 min.
780 */
781 durable_timeout_msec = (16*60*1000);
782 }
783
784 if (dh2q) {
785 const uint8_t *p = dh2q->data.data;
786 uint32_t durable_v2_timeout = 0;
787 DATA_BLOB create_guid_blob;
788
789 if (dh2q->data.length != 32) {
790 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
791 return tevent_req_post(req, ev);
792 }
793
794 if (dhnq) {
795 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
796 return tevent_req_post(req, ev);
797 }
798
799 durable_v2_timeout = IVAL(p, 0);
800 create_guid_blob = data_blob_const(p + 16, 16);
801
802 status = GUID_from_ndr_blob(&create_guid_blob,
803 &_create_guid);
804 if (tevent_req_nterror(req, status)) {
805 return tevent_req_post(req, ev);
806 }
807 create_guid = &_create_guid;
808 /*
809 * we need to store the create_guid later
810 */
811 update_open = true;
812
813 /*
814 * durable handle v2 request processed below
815 */
816 durable_requested = true;
817 durable_timeout_msec = durable_v2_timeout;
818 if (durable_timeout_msec == 0) {
819 /*
820 * Set the timeout to 1 min as default.
821 *
822 * This matches Windows 2012.
823 */
824 durable_timeout_msec = (60*1000);
825 }
826 }
827
828 if (dhnc) {
829 persistent_id = BVAL(dhnc->data.data, 0);
830
831 do_durable_reconnect = true;
832 }
833
834 if (dh2c) {
835 const uint8_t *p = dh2c->data.data;
836 DATA_BLOB create_guid_blob;
837
838 persistent_id = BVAL(p, 0);
839 create_guid_blob = data_blob_const(p + 16, 16);
840
841 status = GUID_from_ndr_blob(&create_guid_blob,
842 &_create_guid);
843 if (tevent_req_nterror(req, status)) {
844 return tevent_req_post(req, ev);
845 }
846 create_guid = &_create_guid;
847
848 do_durable_reconnect = true;
849 }
850
851 if (alsi) {
852 if (alsi->data.length != 8) {
853 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
854 return tevent_req_post(req, ev);
855 }
856 allocation_size = BVAL(alsi->data.data, 0);
857 }
858
859 if (twrp) {
860 NTTIME nttime;
861 time_t t;
862 struct tm *tm;
863
864 if (twrp->data.length != 8) {
865 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
866 return tevent_req_post(req, ev);
867 }
868
869 nttime = BVAL(twrp->data.data, 0);
870 t = nt_time_to_unix(nttime);
871 tm = gmtime(&t);
872
873 TALLOC_FREE(fname);
874 fname = talloc_asprintf(state,
875 "@GMT-%04u.%02u.%02u-%02u.%02u.%02u\\%s",
876 tm->tm_year + 1900,
877 tm->tm_mon + 1,
878 tm->tm_mday,
879 tm->tm_hour,
880 tm->tm_min,
881 tm->tm_sec,
882 in_name);
883 if (tevent_req_nomem(fname, req)) {
884 return tevent_req_post(req, ev);
885 }
886 }
887
888 if (qfid) {
889 if (qfid->data.length != 0) {
890 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
891 return tevent_req_post(req, ev);
892 }
893 }
894
895 if (rqls) {
896 lease_len = smb2_lease_pull(
897 rqls->data.data, rqls->data.length, &lease);
898 if (lease_len == -1) {
899 tevent_req_nterror(
900 req, NT_STATUS_INVALID_PARAMETER);
901 return tevent_req_post(req, ev);
902 }
903 lease_ptr = &lease;
904
905 if (DEBUGLEVEL >= 10) {
906 DEBUG(10, ("Got lease request size %d\n",
907 (int)lease_len));
908 NDR_PRINT_DEBUG(smb2_lease, lease_ptr);
909 }
910
911 if (!smb2_lease_key_valid(&lease.lease_key)) {
912 lease_ptr = NULL;
913 requested_oplock_level = SMB2_OPLOCK_LEVEL_NONE;
914 }
915
916 if ((smb2req->xconn->protocol < PROTOCOL_SMB3_00) &&
917 (lease.lease_version != 1)) {
918 DEBUG(10, ("v2 lease key only for SMB3\n"));
919 lease_ptr = NULL;
920 }
921 }
922
923 /* these are ignored for SMB2 */
924 in_create_options &= ~(0x10);/* NTCREATEX_OPTIONS_SYNC_ALERT */
925 in_create_options &= ~(0x20);/* NTCREATEX_OPTIONS_ASYNC_ALERT */
926
927 in_file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
928
929 DEBUG(10, ("smbd_smb2_create_send: open execution phase\n"));
930
931 /*
932 * For the backend file open procedure, there are
933 * two possible modes: durable_reconnect or not.
934 */
935 if (do_durable_reconnect) {
936 DATA_BLOB new_cookie = data_blob_null;
937 NTTIME now = timeval_to_nttime(&smb2req->request_time);
938
939 status = smb2srv_open_recreate(smb2req->xconn,
940 smb1req->conn->session_info,
941 persistent_id, create_guid,
942 now, &op);
943 if (!NT_STATUS_IS_OK(status)) {
944 DEBUG(3, ("smbd_smb2_create_send: "
945 "smb2srv_open_recreate failed: %s\n",
946 nt_errstr(status)));
947 tevent_req_nterror(req, status);
948 return tevent_req_post(req, ev);
949 }
950
951 DEBUG(10, ("smb2_create_send: %s to recreate the "
952 "smb2srv_open struct for a durable handle.\n",
953 op->global->durable ? "succeded" : "failed"));
954
955 if (!op->global->durable) {
956 talloc_free(op);
957 tevent_req_nterror(req,
958 NT_STATUS_OBJECT_NAME_NOT_FOUND);
959 return tevent_req_post(req, ev);
960 }
961
962 status = SMB_VFS_DURABLE_RECONNECT(smb1req->conn,
963 smb1req,
964 op, /* smbXsrv_open input */
965 op->global->backend_cookie,
966 op, /* TALLOC_CTX */
967 &result, &new_cookie);
968 if (!NT_STATUS_IS_OK(status)) {
969 NTSTATUS return_status;
970
971 return_status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
972
973 DEBUG(3, ("smbd_smb2_create_send: "
974 "durable_reconnect failed: %s => %s\n",
975 nt_errstr(status),
976 nt_errstr(return_status)));
977
978 tevent_req_nterror(req, return_status);
979 return tevent_req_post(req, ev);
980 }
981
982 DEBUG(10, ("result->oplock_type=%u, lease_ptr==%p\n",
983 (unsigned)result->oplock_type, lease_ptr));
984
985 status = smbd_smb2_create_durable_lease_check(
986 fname, result, lease_ptr);
987 if (!NT_STATUS_IS_OK(status)) {
988 close_file(smb1req, result, SHUTDOWN_CLOSE);
989 tevent_req_nterror(req, status);
990 return tevent_req_post(req, ev);
991 }
992
993 data_blob_free(&op->global->backend_cookie);
994 op->global->backend_cookie = new_cookie;
995
996 op->status = NT_STATUS_OK;
997 op->global->disconnect_time = 0;
998
999 /* save the timout for later update */
1000 durable_timeout_msec = op->global->durable_timeout_msec;
1001
1002 update_open = true;
1003
1004 info = FILE_WAS_OPENED;
1005 } else {
1006 struct smb_filename *smb_fname = NULL;
1007
1008 if (requested_oplock_level == SMB2_OPLOCK_LEVEL_LEASE) {
1009 if (lease_ptr == NULL) {
1010 requested_oplock_level = SMB2_OPLOCK_LEVEL_NONE;
1011 }
1012 } else {
1013 lease_ptr = NULL;
1014 }
1015
1016 /*
1017 * For a DFS path the function parse_dfs_path()
1018 * will do the path processing.
1019 */
1020
1021 if (!(smb1req->flags2 & FLAGS2_DFS_PATHNAMES)) {
1022 /* convert '\\' into '/' */
1023 status = check_path_syntax(fname);
1024 if (!NT_STATUS_IS_OK(status)) {
1025 tevent_req_nterror(req, status);
1026 return tevent_req_post(req, ev);
1027 }
1028 }
1029
1030 status = filename_convert(req,
1031 smb1req->conn,
1032 smb1req->flags2 & FLAGS2_DFS_PATHNAMES,
1033 fname,
1034 UCF_PREP_CREATEFILE,
1035 NULL, /* ppath_contains_wcards */
1036 &smb_fname);
1037 if (!NT_STATUS_IS_OK(status)) {
1038 tevent_req_nterror(req, status);
1039 return tevent_req_post(req, ev);
1040 }
1041
1042 /*
1043 * MS-SMB2: 2.2.13 SMB2 CREATE Request
1044 * ImpersonationLevel ... MUST contain one of the
1045 * following values. The server MUST validate this
1046 * field, but otherwise ignore it.
1047 *
1048 * NB. The source4/torture/smb2/durable_open.c test
1049 * shows this check is only done on real opens, not
1050 * on durable handle-reopens.
1051 */
1052
1053 if (in_impersonation_level >
1054 SMB2_IMPERSONATION_DELEGATE) {
1055 tevent_req_nterror(req,
1056 NT_STATUS_BAD_IMPERSONATION_LEVEL);
1057 return tevent_req_post(req, ev);
1058 }
1059
1060 /*
1061 * We know we're going to do a local open, so now
1062 * we must be protocol strict. JRA.
1063 *
1064 * MS-SMB2: 3.3.5.9 - Receiving an SMB2 CREATE Request
1065 * If the file name length is greater than zero and the
1066 * first character is a path separator character, the
1067 * server MUST fail the request with
1068 * STATUS_INVALID_PARAMETER.
1069 */
1070 if (in_name[0] == '\\' || in_name[0] == '/') {
1071 tevent_req_nterror(req,
1072 NT_STATUS_INVALID_PARAMETER);
1073 return tevent_req_post(req, ev);
1074 }
1075
1076 status = SMB_VFS_CREATE_FILE(smb1req->conn,
1077 smb1req,
1078 0, /* root_dir_fid */
1079 smb_fname,
1080 in_desired_access,
1081 in_share_access,
1082 in_create_disposition,
1083 in_create_options,
1084 in_file_attributes,
1085 map_smb2_oplock_levels_to_samba(requested_oplock_level),
1086 lease_ptr,
1087 allocation_size,
1088 0, /* private_flags */
1089 sec_desc,
1090 ea_list,
1091 &result,
1092 &info,
1093 &in_context_blobs,
1094 state->out_context_blobs);
1095 if (!NT_STATUS_IS_OK(status)) {
1096 if (open_was_deferred(smb1req->xconn, smb1req->mid)) {
1097 SMBPROFILE_IOBYTES_ASYNC_SET_IDLE(smb2req->profile);
1098 return req;
1099 }
1100 tevent_req_nterror(req, status);
1101 return tevent_req_post(req, ev);
1102 }
1103 op = result->op;
1104 }
1105
1106 /*
1107 * here we have op == result->op
1108 */
1109
1110 DEBUG(10, ("smbd_smb2_create_send: "
1111 "response construction phase\n"));
1112
1113 if (mxac) {
1114 NTTIME last_write_time;
1115
1116 last_write_time = unix_timespec_to_nt_time(
1117 result->fsp_name->st.st_ex_mtime);
1118 if (last_write_time != max_access_time) {
1119 uint8_t p[8];
1120 uint32_t max_access_granted;
1121 DATA_BLOB blob = data_blob_const(p, sizeof(p));
1122
1123 status = smbd_calculate_access_mask(smb1req->conn,
1124 result->fsp_name,
1125 false,
1126 SEC_FLAG_MAXIMUM_ALLOWED,
1127 &max_access_granted);
1128
1129 SIVAL(p, 0, NT_STATUS_V(status));
1130 SIVAL(p, 4, max_access_granted);
1131
1132 status = smb2_create_blob_add(
1133 state->out_context_blobs,
1134 state->out_context_blobs,
1135 SMB2_CREATE_TAG_MXAC,
1136 blob);
1137 if (!NT_STATUS_IS_OK(status)) {
1138 tevent_req_nterror(req, status);
1139 return tevent_req_post(req, ev);
1140 }
1141 }
1142 }
1143
1144 if (durable_requested &&
1145 (fsp_lease_type(result) & SMB2_LEASE_HANDLE))
1146 {
1147 status = SMB_VFS_DURABLE_COOKIE(result,
1148 op,
1149 &op->global->backend_cookie);
1150 if (!NT_STATUS_IS_OK(status)) {
1151 op->global->backend_cookie = data_blob_null;
1152 }
1153 }
1154 if (op->global->backend_cookie.length > 0) {
1155 update_open = true;
1156
1157 op->global->durable = true;
1158 op->global->durable_timeout_msec = durable_timeout_msec;
1159 }
1160
1161 if (update_open) {
1162 op->global->create_guid = _create_guid;
1163
1164 status = smbXsrv_open_update(op);
1165 DEBUG(10, ("smb2_create_send: smbXsrv_open_update "
1166 "returned %s\n",
1167 nt_errstr(status)));
1168 if (!NT_STATUS_IS_OK(status)) {
1169 tevent_req_nterror(req, status);
1170 return tevent_req_post(req, ev);
1171 }
1172 }
1173
1174 if (dhnq && op->global->durable) {
1175 uint8_t p[8] = { 0, };
1176 DATA_BLOB blob = data_blob_const(p, sizeof(p));
1177
1178 status = smb2_create_blob_add(state->out_context_blobs,
1179 state->out_context_blobs,
1180 SMB2_CREATE_TAG_DHNQ,
1181 blob);
1182 if (!NT_STATUS_IS_OK(status)) {
1183 tevent_req_nterror(req, status);
1184 return tevent_req_post(req, ev);
1185 }
1186 }
1187
1188 if (dh2q && op->global->durable) {
1189 uint8_t p[8] = { 0, };
1190 DATA_BLOB blob = data_blob_const(p, sizeof(p));
1191 uint32_t durable_v2_response_flags = 0;
1192
1193 SIVAL(p, 0, op->global->durable_timeout_msec);
1194 SIVAL(p, 4, durable_v2_response_flags);
1195
1196 status = smb2_create_blob_add(state->out_context_blobs,
1197 state->out_context_blobs,
1198 SMB2_CREATE_TAG_DH2Q,
1199 blob);
1200 if (!NT_STATUS_IS_OK(status)) {
1201 tevent_req_nterror(req, status);
1202 return tevent_req_post(req, ev);
1203 }
1204 }
1205
1206 if (qfid) {
1207 uint8_t p[32];
1208 uint64_t file_index = get_FileIndex(result->conn,
1209 &result->fsp_name->st);
1210 DATA_BLOB blob = data_blob_const(p, sizeof(p));
1211
1212 ZERO_STRUCT(p);
1213
1214 /* From conversations with Microsoft engineers at
1215 the MS plugfest. The first 8 bytes are the "volume index"
1216 == inode, the second 8 bytes are the "volume id",
1217 == dev. This will be updated in the SMB2 doc. */
1218 SBVAL(p, 0, file_index);
1219 SIVAL(p, 8, result->fsp_name->st.st_ex_dev);/* FileIndexHigh */
1220
1221 status = smb2_create_blob_add(state->out_context_blobs,
1222 state->out_context_blobs,
1223 SMB2_CREATE_TAG_QFID,
1224 blob);
1225 if (!NT_STATUS_IS_OK(status)) {
1226 tevent_req_nterror(req, status);
1227 return tevent_req_post(req, ev);
1228 }
1229 }
1230
1231 if ((rqls != NULL) && (result->oplock_type == LEASE_OPLOCK)) {
1232 uint8_t buf[52];
1233
1234 lease = result->lease->lease;
1235
1236 lease_len = sizeof(buf);
1237 if (lease.lease_version == 1) {
1238 lease_len = 32;
1239 }
1240
1241 if (!smb2_lease_push(&lease, buf, lease_len)) {
1242 tevent_req_nterror(
1243 req, NT_STATUS_INTERNAL_ERROR);
1244 return tevent_req_post(req, ev);
1245 }
1246
1247 status = smb2_create_blob_add(
1248 state, state->out_context_blobs,
1249 SMB2_CREATE_TAG_RQLS,
1250 data_blob_const(buf, lease_len));
1251 if (!NT_STATUS_IS_OK(status)) {
1252 tevent_req_nterror(req, status);
1253 return tevent_req_post(req, ev);
1254 }
1255 }
1256 }
1257
1258 smb2req->compat_chain_fsp = smb1req->chain_fsp;
1259
1260 if(lp_fake_oplocks(SNUM(smb2req->tcon->compat))) {
1261 state->out_oplock_level = in_oplock_level;
1262 } else {
1263 state->out_oplock_level = map_samba_oplock_levels_to_smb2(result->oplock_type);
1264 }
1265
1266 if ((in_create_disposition == FILE_SUPERSEDE)
1267 && (info == FILE_WAS_OVERWRITTEN)) {
1268 state->out_create_action = FILE_WAS_SUPERSEDED;
1269 } else {
1270 state->out_create_action = info;
1271 }
1272 state->out_file_attributes = dos_mode(result->conn,
1273 result->fsp_name);
1274
1275 state->out_creation_ts = get_create_timespec(smb1req->conn,
1276 result, result->fsp_name);
1277 state->out_last_access_ts = result->fsp_name->st.st_ex_atime;
1278 state->out_last_write_ts = result->fsp_name->st.st_ex_mtime;
1279 state->out_change_ts = get_change_timespec(smb1req->conn,
1280 result, result->fsp_name);
1281 state->out_allocation_size =
1282 SMB_VFS_GET_ALLOC_SIZE(smb1req->conn, result,
1283 &(result->fsp_name->st));
1284 state->out_end_of_file = result->fsp_name->st.st_ex_size;
1285 if (state->out_file_attributes == 0) {
1286 state->out_file_attributes = FILE_ATTRIBUTE_NORMAL;
1287 }
1288 state->out_file_id_persistent = result->op->global->open_persistent_id;
1289 state->out_file_id_volatile = result->op->global->open_volatile_id;
1290
1291 DEBUG(10,("smbd_smb2_create_send: %s - %s\n",
1292 fsp_str_dbg(result), fsp_fnum_dbg(result)));
1293
1294 tevent_req_done(req);
1295 return tevent_req_post(req, ev);
1296 }
1297
1298 static NTSTATUS smbd_smb2_create_recv(struct tevent_req *req,
1299 TALLOC_CTX *mem_ctx,
1300 uint8_t *out_oplock_level,
1301 uint32_t *out_create_action,
1302 struct timespec *out_creation_ts,
1303 struct timespec *out_last_access_ts,
1304 struct timespec *out_last_write_ts,
1305 struct timespec *out_change_ts,
1306 uint64_t *out_allocation_size,
1307 uint64_t *out_end_of_file,
1308 uint32_t *out_file_attributes,
1309 uint64_t *out_file_id_persistent,
1310 uint64_t *out_file_id_volatile,
1311 struct smb2_create_blobs *out_context_blobs)
1312 {
1313 NTSTATUS status;
1314 struct smbd_smb2_create_state *state = tevent_req_data(req,
1315 struct smbd_smb2_create_state);
1316
1317 if (tevent_req_is_nterror(req, &status)) {
1318 tevent_req_received(req);
1319 return status;
1320 }
1321
1322 *out_oplock_level = state->out_oplock_level;
1323 *out_create_action = state->out_create_action;
1324 *out_creation_ts = state->out_creation_ts;
1325 *out_last_access_ts = state->out_last_access_ts;
1326 *out_last_write_ts = state->out_last_write_ts;
1327 *out_change_ts = state->out_change_ts;
1328 *out_allocation_size = state->out_allocation_size;
1329 *out_end_of_file = state->out_end_of_file;
1330 *out_file_attributes = state->out_file_attributes;
1331 *out_file_id_persistent = state->out_file_id_persistent;
1332 *out_file_id_volatile = state->out_file_id_volatile;
1333 *out_context_blobs = *(state->out_context_blobs);
1334
1335 talloc_steal(mem_ctx, state->out_context_blobs->blobs);
1336
1337 tevent_req_received(req);
1338 return NT_STATUS_OK;
1339 }
1340
1341 /*********************************************************
1342 Code for dealing with deferred opens.
1343 *********************************************************/
1344
1345 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request *smb2req,
1346 struct timeval *p_request_time,
1347 struct deferred_open_record **open_rec)
1348 {
1349 struct smbd_smb2_create_state *state = NULL;
1350 struct tevent_req *req = NULL;
1351
1352 if (!smb2req) {
1353 return false;
1354 }
1355 req = smb2req->subreq;
1356 if (!req) {
1357 return false;
1358 }
1359 state = tevent_req_data(req, struct smbd_smb2_create_state);
1360 if (!state) {
1361 return false;
1362 }
1363 if (!state->open_was_deferred) {
1364 return false;
1365 }
1366 if (p_request_time) {
1367 *p_request_time = state->request_time;
1368 }
1369 if (open_rec != NULL) {
1370 *open_rec = state->open_rec;
1371 }
1372 return true;
1373 }
1374
1375 /*********************************************************
1376 Re-process this call early - requested by message or
1377 close.
1378 *********************************************************/
1379
1380 static struct smbd_smb2_request *find_open_smb2req(
1381 struct smbXsrv_connection *xconn, uint64_t mid)
1382 {
1383 struct smbd_smb2_request *smb2req;
1384
1385 for (smb2req = xconn->smb2.requests; smb2req; smb2req = smb2req->next) {
1386 uint64_t message_id;
1387 if (smb2req->subreq == NULL) {
1388 /* This message has been processed. */
1389 continue;
1390 }
1391 if (!tevent_req_is_in_progress(smb2req->subreq)) {
1392 /* This message has been processed. */
1393 continue;
1394 }
1395 message_id = get_mid_from_smb2req(smb2req);
1396 if (message_id == mid) {
1397 return smb2req;
1398 }
1399 }
1400 return NULL;
1401 }
1402
1403 bool open_was_deferred_smb2(struct smbXsrv_connection *xconn, uint64_t mid)
1404 {
1405 struct smbd_smb2_create_state *state = NULL;
1406 struct smbd_smb2_request *smb2req;
1407
1408 smb2req = find_open_smb2req(xconn, mid);
1409
1410 if (!smb2req) {
1411 DEBUG(10,("open_was_deferred_smb2: mid %llu smb2req == NULL\n",
1412 (unsigned long long)mid));
1413 return false;
1414 }
1415 if (!smb2req->subreq) {
1416 return false;
1417 }
1418 if (!tevent_req_is_in_progress(smb2req->subreq)) {
1419 return false;
1420 }
1421 state = tevent_req_data(smb2req->subreq,
1422 struct smbd_smb2_create_state);
1423 if (!state) {
1424 return false;
1425 }
1426 /* It's not in progress if there's no timeout event. */
1427 if (!state->open_was_deferred) {
1428 return false;
1429 }
1430
1431 DEBUG(10,("open_was_deferred_smb2: mid = %llu\n",
1432 (unsigned long long)mid));
1433
1434 return true;
1435 }
1436
1437 static void remove_deferred_open_message_smb2_internal(struct smbd_smb2_request *smb2req,
1438 uint64_t mid)
1439 {
1440 struct smbd_smb2_create_state *state = NULL;
1441
1442 if (!smb2req->subreq) {
1443 return;
1444 }
1445 if (!tevent_req_is_in_progress(smb2req->subreq)) {
1446 return;
1447 }
1448 state = tevent_req_data(smb2req->subreq,
1449 struct smbd_smb2_create_state);
1450 if (!state) {
1451 return;
1452 }
1453
1454 DEBUG(10,("remove_deferred_open_message_smb2_internal: "
1455 "mid %llu\n",
1456 (unsigned long long)mid ));
1457
1458 state->open_was_deferred = false;
1459 /* Ensure we don't have any outstanding timer event. */
1460 TALLOC_FREE(state->te);
1461 /* Ensure we don't have any outstanding immediate event. */
1462 TALLOC_FREE(state->im);
1463 }
1464
1465 void remove_deferred_open_message_smb2(
1466 struct smbXsrv_connection *xconn, uint64_t mid)
1467 {
1468 struct smbd_smb2_request *smb2req;
1469
1470 smb2req = find_open_smb2req(xconn, mid);
1471
1472 if (!smb2req) {
1473 DEBUG(10,("remove_deferred_open_message_smb2: "
1474 "can't find mid %llu\n",
1475 (unsigned long long)mid ));
1476 return;
1477 }
1478 remove_deferred_open_message_smb2_internal(smb2req, mid);
1479 }
1480
1481 static void smbd_smb2_create_request_dispatch_immediate(struct tevent_context *ctx,
1482 struct tevent_immediate *im,
1483 void *private_data)
1484 {
1485 struct smbd_smb2_request *smb2req = talloc_get_type_abort(private_data,
1486 struct smbd_smb2_request);
1487 uint64_t mid = get_mid_from_smb2req(smb2req);
1488 NTSTATUS status;
1489
1490 DEBUG(10,("smbd_smb2_create_request_dispatch_immediate: "
1491 "re-dispatching mid %llu\n",
1492 (unsigned long long)mid ));
1493
1494 status = smbd_smb2_request_dispatch(smb2req);
1495 if (!NT_STATUS_IS_OK(status)) {
1496 smbd_server_connection_terminate(smb2req->xconn,
1497 nt_errstr(status));
1498 return;
1499 }
1500 }
1501
1502 bool schedule_deferred_open_message_smb2(
1503 struct smbXsrv_connection *xconn, uint64_t mid)
1504 {
1505 struct smbd_smb2_create_state *state = NULL;
1506 struct smbd_smb2_request *smb2req;
1507
1508 smb2req = find_open_smb2req(xconn, mid);
1509
1510 if (!smb2req) {
1511 DEBUG(10,("schedule_deferred_open_message_smb2: "
1512 "can't find mid %llu\n",
1513 (unsigned long long)mid ));
1514 return false;
1515 }
1516 if (!smb2req->subreq) {
1517 return false;
1518 }
1519 if (!tevent_req_is_in_progress(smb2req->subreq)) {
1520 return false;
1521 }
1522 state = tevent_req_data(smb2req->subreq,
1523 struct smbd_smb2_create_state);
1524 if (!state) {
1525 return false;
1526 }
1527
1528 /* Ensure we don't have any outstanding timer event. */
1529 TALLOC_FREE(state->te);
1530 /* Ensure we don't have any outstanding immediate event. */
1531 TALLOC_FREE(state->im);
1532
1533 /*
1534 * This is subtle. We must null out the callback
1535 * before rescheduling, else the first call to
1536 * tevent_req_nterror() causes the _receive()
1537 * function to be called, this causing tevent_req_post()
1538 * to crash.
1539 */
1540 tevent_req_set_callback(smb2req->subreq, NULL, NULL);
1541
1542 state->im = tevent_create_immediate(smb2req);
1543 if (!state->im) {
1544 smbd_server_connection_terminate(smb2req->xconn,
1545 nt_errstr(NT_STATUS_NO_MEMORY));
1546 return false;
1547 }
1548
1549 DEBUG(10,("schedule_deferred_open_message_smb2: "
1550 "re-processing mid %llu\n",
1551 (unsigned long long)mid ));
1552
1553 tevent_schedule_immediate(state->im,
1554 smb2req->sconn->ev_ctx,
1555 smbd_smb2_create_request_dispatch_immediate,
1556 smb2req);
1557
1558 return true;
1559 }
1560
1561 static bool smbd_smb2_create_cancel(struct tevent_req *req)
1562 {
1563 struct smbd_smb2_request *smb2req = NULL;
1564 struct smbd_smb2_create_state *state = tevent_req_data(req,
1565 struct smbd_smb2_create_state);
1566 uint64_t mid;
1567
1568 if (!state) {
1569 return false;
1570 }
1571
1572 if (!state->smb2req) {
1573 return false;
1574 }
1575
1576 smb2req = state->smb2req;
1577 mid = get_mid_from_smb2req(smb2req);
1578
1579 if (is_deferred_open_async(state->open_rec)) {
1580 /* Can't cancel an async create. */
1581 return false;
1582 }
1583
1584 remove_deferred_open_message_smb2_internal(smb2req, mid);
1585
1586 tevent_req_defer_callback(req, smb2req->sconn->ev_ctx);
1587 tevent_req_nterror(req, NT_STATUS_CANCELLED);
1588 return true;
1589 }
1590
1591 bool push_deferred_open_message_smb2(struct smbd_smb2_request *smb2req,
1592 struct timeval request_time,
1593 struct timeval timeout,
1594 struct file_id id,
1595 struct deferred_open_record *open_rec)
1596 {
1597 struct tevent_req *req = NULL;
1598 struct smbd_smb2_create_state *state = NULL;
1599 struct timeval end_time;
1600
1601 if (!smb2req) {
1602 return false;
1603 }
1604 req = smb2req->subreq;
1605 if (!req) {
1606 return false;
1607 }
1608 state = tevent_req_data(req, struct smbd_smb2_create_state);
1609 if (!state) {
1610 return false;
1611 }
1612 state->id = id;
1613 state->request_time = request_time;
1614 state->open_rec = talloc_move(state, &open_rec);
1615
1616 /* Re-schedule us to retry on timer expiry. */
1617 end_time = timeval_sum(&request_time, &timeout);
1618
1619 DEBUG(10,("push_deferred_open_message_smb2: "
1620 "timeout at %s\n",
1621 timeval_string(talloc_tos(),
1622 &end_time,
1623 true) ));
1624
1625 state->open_was_deferred = true;
1626
1627 /* allow this request to be canceled */
1628 tevent_req_set_cancel_fn(req, smbd_smb2_create_cancel);
1629
1630 return true;
1631 }
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