smbd: Return "blocker_pid" from do_lock()
[Samba.git] / source3 / smbd / smb2_setinfo.c
blob845c51d29305f0743b5eb13fea4e5f53b14df547
1 /*
2 Unix SMB/CIFS implementation.
3 Core SMB2 server
5 Copyright (C) Stefan Metzmacher 2009
6 Copyright (C) Jeremy Allison 2010
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.
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.
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/>.
22 #include "includes.h"
23 #include "smbd/smbd.h"
24 #include "smbd/globals.h"
25 #include "../libcli/smb/smb_common.h"
26 #include "trans2.h"
27 #include "../lib/util/tevent_ntstatus.h"
28 #include "../librpc/gen_ndr/open_files.h"
29 #include "source3/lib/dbwrap/dbwrap_watch.h"
30 #include "messages.h"
31 #include "librpc/gen_ndr/ndr_quota.h"
33 #undef DBGC_CLASS
34 #define DBGC_CLASS DBGC_SMB2
36 static struct tevent_req *smbd_smb2_setinfo_send(TALLOC_CTX *mem_ctx,
37 struct tevent_context *ev,
38 struct smbd_smb2_request *smb2req,
39 struct files_struct *in_fsp,
40 uint8_t in_info_type,
41 uint8_t in_file_info_class,
42 DATA_BLOB in_input_buffer,
43 uint32_t in_additional_information);
44 static NTSTATUS smbd_smb2_setinfo_recv(struct tevent_req *req);
46 static void smbd_smb2_request_setinfo_done(struct tevent_req *subreq);
47 NTSTATUS smbd_smb2_request_process_setinfo(struct smbd_smb2_request *req)
49 struct smbXsrv_connection *xconn = req->xconn;
50 NTSTATUS status;
51 const uint8_t *inbody;
52 uint8_t in_info_type;
53 uint8_t in_file_info_class;
54 uint16_t in_input_buffer_offset;
55 uint32_t in_input_buffer_length;
56 DATA_BLOB in_input_buffer;
57 uint32_t in_additional_information;
58 uint64_t in_file_id_persistent;
59 uint64_t in_file_id_volatile;
60 struct files_struct *in_fsp;
61 struct tevent_req *subreq;
63 status = smbd_smb2_request_verify_sizes(req, 0x21);
64 if (!NT_STATUS_IS_OK(status)) {
65 return smbd_smb2_request_error(req, status);
67 inbody = SMBD_SMB2_IN_BODY_PTR(req);
69 in_info_type = CVAL(inbody, 0x02);
70 in_file_info_class = CVAL(inbody, 0x03);
71 in_input_buffer_length = IVAL(inbody, 0x04);
72 in_input_buffer_offset = SVAL(inbody, 0x08);
73 /* 0x0A 2 bytes reserved */
74 in_additional_information = IVAL(inbody, 0x0C);
75 in_file_id_persistent = BVAL(inbody, 0x10);
76 in_file_id_volatile = BVAL(inbody, 0x18);
78 if (in_input_buffer_offset == 0 && in_input_buffer_length == 0) {
79 /* This is ok */
80 } else if (in_input_buffer_offset !=
81 (SMB2_HDR_BODY + SMBD_SMB2_IN_BODY_LEN(req))) {
82 return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
85 if (in_input_buffer_length > SMBD_SMB2_IN_DYN_LEN(req)) {
86 return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
89 in_input_buffer.data = SMBD_SMB2_IN_DYN_PTR(req);
90 in_input_buffer.length = in_input_buffer_length;
92 if (in_input_buffer.length > xconn->smb2.server.max_trans) {
93 DEBUG(2,("smbd_smb2_request_process_setinfo: "
94 "client ignored max trans: %s: 0x%08X: 0x%08X\n",
95 __location__, (unsigned)in_input_buffer.length,
96 (unsigned)xconn->smb2.server.max_trans));
97 return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
100 status = smbd_smb2_request_verify_creditcharge(req,
101 in_input_buffer.length);
102 if (!NT_STATUS_IS_OK(status)) {
103 return smbd_smb2_request_error(req, status);
106 in_fsp = file_fsp_smb2(req, in_file_id_persistent, in_file_id_volatile);
107 if (in_fsp == NULL) {
108 return smbd_smb2_request_error(req, NT_STATUS_FILE_CLOSED);
111 subreq = smbd_smb2_setinfo_send(req, req->sconn->ev_ctx,
112 req, in_fsp,
113 in_info_type,
114 in_file_info_class,
115 in_input_buffer,
116 in_additional_information);
117 if (subreq == NULL) {
118 return smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
120 tevent_req_set_callback(subreq, smbd_smb2_request_setinfo_done, req);
122 return smbd_smb2_request_pending_queue(req, subreq, 500);
125 static void smbd_smb2_request_setinfo_done(struct tevent_req *subreq)
127 struct smbd_smb2_request *req = tevent_req_callback_data(subreq,
128 struct smbd_smb2_request);
129 DATA_BLOB outbody;
130 NTSTATUS status;
131 NTSTATUS error; /* transport error */
133 status = smbd_smb2_setinfo_recv(subreq);
134 TALLOC_FREE(subreq);
135 if (!NT_STATUS_IS_OK(status)) {
136 error = smbd_smb2_request_error(req, status);
137 if (!NT_STATUS_IS_OK(error)) {
138 smbd_server_connection_terminate(req->xconn,
139 nt_errstr(error));
140 return;
142 return;
145 outbody = smbd_smb2_generate_outbody(req, 0x02);
146 if (outbody.data == NULL) {
147 error = smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
148 if (!NT_STATUS_IS_OK(error)) {
149 smbd_server_connection_terminate(req->xconn,
150 nt_errstr(error));
151 return;
153 return;
156 SSVAL(outbody.data, 0x00, 0x02); /* struct size */
158 error = smbd_smb2_request_done(req, outbody, NULL);
159 if (!NT_STATUS_IS_OK(error)) {
160 smbd_server_connection_terminate(req->xconn,
161 nt_errstr(error));
162 return;
166 struct defer_rename_state {
167 struct tevent_req *req;
168 struct smbd_smb2_request *smb2req;
169 struct tevent_context *ev;
170 struct files_struct *fsp;
171 char *data;
172 int data_size;
175 static int defer_rename_state_destructor(struct defer_rename_state *rename_state)
177 SAFE_FREE(rename_state->data);
178 return 0;
181 static void defer_rename_done(struct tevent_req *subreq);
183 static struct tevent_req *delay_rename_for_lease_break(struct tevent_req *req,
184 struct smbd_smb2_request *smb2req,
185 struct tevent_context *ev,
186 struct files_struct *fsp,
187 struct share_mode_lock *lck,
188 char *data,
189 int data_size)
192 struct tevent_req *subreq;
193 uint32_t i;
194 struct share_mode_data *d = lck->data;
195 struct defer_rename_state *rename_state;
196 bool delay = false;
197 struct timeval timeout;
199 if (fsp->oplock_type != LEASE_OPLOCK) {
200 return NULL;
203 for (i=0; i<d->num_share_modes; i++) {
204 struct share_mode_entry *e = &d->share_modes[i];
205 uint32_t e_lease_type;
206 uint32_t break_to;
208 if (e->op_type != LEASE_OPLOCK) {
209 continue;
212 e_lease_type = get_lease_type(d, e);
214 if (!(e_lease_type & SMB2_LEASE_HANDLE)) {
215 continue;
218 if (smb2_lease_equal(fsp_client_guid(fsp),
219 &fsp->lease->lease.lease_key,
220 &e->client_guid,
221 &e->lease_key)) {
222 continue;
225 if (share_mode_stale_pid(d, i)) {
226 continue;
229 delay = true;
230 break_to = (e_lease_type & ~SMB2_LEASE_HANDLE);
232 send_break_message(fsp->conn->sconn->msg_ctx, &fsp->file_id,
233 e, break_to);
236 if (!delay) {
237 return NULL;
240 /* Setup a watch on this record. */
241 rename_state = talloc_zero(req, struct defer_rename_state);
242 if (rename_state == NULL) {
243 return NULL;
246 rename_state->req = req;
247 rename_state->smb2req = smb2req;
248 rename_state->ev = ev;
249 rename_state->fsp = fsp;
250 rename_state->data = data;
251 rename_state->data_size = data_size;
253 talloc_set_destructor(rename_state, defer_rename_state_destructor);
255 subreq = dbwrap_watched_watch_send(
256 rename_state,
258 lck->data->record,
259 (struct server_id){0});
261 if (subreq == NULL) {
262 exit_server("Could not watch share mode record for rename\n");
265 tevent_req_set_callback(subreq, defer_rename_done, rename_state);
267 timeout = timeval_set(OPLOCK_BREAK_TIMEOUT*2, 0);
268 if (!tevent_req_set_endtime(subreq,
270 timeval_sum(&smb2req->request_time, &timeout))) {
271 exit_server("Could not set rename timeout\n");
274 return subreq;
277 static void defer_rename_done(struct tevent_req *subreq)
279 struct defer_rename_state *state = tevent_req_callback_data(
280 subreq, struct defer_rename_state);
281 NTSTATUS status;
282 struct share_mode_lock *lck;
283 int ret_size = 0;
284 bool ok;
286 status = dbwrap_watched_watch_recv(subreq, NULL, NULL);
287 TALLOC_FREE(subreq);
288 if (!NT_STATUS_IS_OK(status)) {
289 DEBUG(5, ("dbwrap_record_watch_recv returned %s\n",
290 nt_errstr(status)));
291 tevent_req_nterror(state->req, status);
292 return;
296 * Make sure we run as the user again
298 ok = change_to_user(state->smb2req->tcon->compat,
299 state->smb2req->session->compat->vuid);
300 if (!ok) {
301 tevent_req_nterror(state->req, NT_STATUS_ACCESS_DENIED);
302 return;
305 /* Do we still need to wait ? */
306 lck = get_existing_share_mode_lock(state->req, state->fsp->file_id);
307 if (lck == NULL) {
308 tevent_req_nterror(state->req, NT_STATUS_UNSUCCESSFUL);
309 return;
311 subreq = delay_rename_for_lease_break(state->req,
312 state->smb2req,
313 state->ev,
314 state->fsp,
315 lck,
316 state->data,
317 state->data_size);
318 if (subreq) {
319 /* Yep - keep waiting. */
320 state->data = NULL;
321 TALLOC_FREE(state);
322 TALLOC_FREE(lck);
323 return;
326 /* Do the rename under the lock. */
327 status = smbd_do_setfilepathinfo(state->fsp->conn,
328 state->smb2req->smb1req,
329 state,
330 SMB2_FILE_RENAME_INFORMATION_INTERNAL,
331 state->fsp,
332 state->fsp->fsp_name,
333 &state->data,
334 state->data_size,
335 &ret_size);
337 TALLOC_FREE(lck);
338 SAFE_FREE(state->data);
340 if (!NT_STATUS_IS_OK(status)) {
341 tevent_req_nterror(state->req, status);
342 return;
345 tevent_req_done(state->req);
348 struct smbd_smb2_setinfo_state {
349 struct smbd_smb2_request *smb2req;
352 static struct tevent_req *smbd_smb2_setinfo_send(TALLOC_CTX *mem_ctx,
353 struct tevent_context *ev,
354 struct smbd_smb2_request *smb2req,
355 struct files_struct *fsp,
356 uint8_t in_info_type,
357 uint8_t in_file_info_class,
358 DATA_BLOB in_input_buffer,
359 uint32_t in_additional_information)
361 struct tevent_req *req = NULL;
362 struct smbd_smb2_setinfo_state *state = NULL;
363 struct smb_request *smbreq = NULL;
364 connection_struct *conn = smb2req->tcon->compat;
365 struct share_mode_lock *lck = NULL;
366 NTSTATUS status;
368 req = tevent_req_create(mem_ctx, &state,
369 struct smbd_smb2_setinfo_state);
370 if (req == NULL) {
371 return NULL;
373 state->smb2req = smb2req;
375 DEBUG(10,("smbd_smb2_setinfo_send: %s - %s\n",
376 fsp_str_dbg(fsp), fsp_fnum_dbg(fsp)));
378 smbreq = smbd_smb2_fake_smb_request(smb2req);
379 if (tevent_req_nomem(smbreq, req)) {
380 return tevent_req_post(req, ev);
383 if (IS_IPC(conn)) {
384 tevent_req_nterror(req, NT_STATUS_NOT_SUPPORTED);
385 return tevent_req_post(req, ev);
388 switch (in_info_type) {
389 case SMB2_0_INFO_FILE:
391 uint16_t file_info_level;
392 char *data;
393 int data_size;
394 int ret_size = 0;
397 file_info_level = in_file_info_class + 1000;
398 if (file_info_level == SMB_FILE_RENAME_INFORMATION) {
399 /* SMB2_FILE_RENAME_INFORMATION_INTERNAL == 0xFF00 + in_file_info_class */
400 file_info_level = SMB2_FILE_RENAME_INFORMATION_INTERNAL;
403 if (fsp->fh->fd == -1) {
405 * This is actually a SETFILEINFO on a directory
406 * handle (returned from an NT SMB). NT5.0 seems
407 * to do this call. JRA.
409 if (fsp->fsp_name->flags & SMB_FILENAME_POSIX_PATH) {
410 /* Always do lstat for UNIX calls. */
411 if (SMB_VFS_LSTAT(conn, fsp->fsp_name)) {
412 DEBUG(3,("smbd_smb2_setinfo_send: "
413 "SMB_VFS_LSTAT of %s failed "
414 "(%s)\n", fsp_str_dbg(fsp),
415 strerror(errno)));
416 status = map_nt_error_from_unix(errno);
417 tevent_req_nterror(req, status);
418 return tevent_req_post(req, ev);
420 } else {
421 if (SMB_VFS_STAT(conn, fsp->fsp_name) != 0) {
422 DEBUG(3,("smbd_smb2_setinfo_send: "
423 "fileinfo of %s failed (%s)\n",
424 fsp_str_dbg(fsp),
425 strerror(errno)));
426 status = map_nt_error_from_unix(errno);
427 tevent_req_nterror(req, status);
428 return tevent_req_post(req, ev);
431 } else if (fsp->print_file) {
433 * Doing a DELETE_ON_CLOSE should cancel a print job.
435 if ((file_info_level == SMB_SET_FILE_DISPOSITION_INFO)
436 && in_input_buffer.length >= 1
437 && CVAL(in_input_buffer.data,0)) {
438 fsp->fh->private_options |= NTCREATEX_OPTIONS_PRIVATE_DELETE_ON_CLOSE;
440 DEBUG(3,("smbd_smb2_setinfo_send: "
441 "Cancelling print job (%s)\n",
442 fsp_str_dbg(fsp)));
444 tevent_req_done(req);
445 return tevent_req_post(req, ev);
446 } else {
447 tevent_req_nterror(req,
448 NT_STATUS_OBJECT_PATH_INVALID);
449 return tevent_req_post(req, ev);
451 } else {
453 * Original code - this is an open file.
456 if (SMB_VFS_FSTAT(fsp, &fsp->fsp_name->st) != 0) {
457 DEBUG(3,("smbd_smb2_setinfo_send: fstat "
458 "of %s failed (%s)\n",
459 fsp_fnum_dbg(fsp),
460 strerror(errno)));
461 status = map_nt_error_from_unix(errno);
462 tevent_req_nterror(req, status);
463 return tevent_req_post(req, ev);
467 data = NULL;
468 data_size = in_input_buffer.length;
469 if (data_size > 0) {
470 data = (char *)SMB_MALLOC_ARRAY(char, data_size);
471 if (tevent_req_nomem(data, req)) {
472 return tevent_req_post(req, ev);
474 memcpy(data, in_input_buffer.data, data_size);
477 if (file_info_level == SMB2_FILE_RENAME_INFORMATION_INTERNAL) {
478 struct tevent_req *subreq;
480 lck = get_existing_share_mode_lock(mem_ctx,
481 fsp->file_id);
482 if (lck == NULL) {
483 SAFE_FREE(data);
484 tevent_req_nterror(req,
485 NT_STATUS_UNSUCCESSFUL);
486 return tevent_req_post(req, ev);
489 subreq = delay_rename_for_lease_break(req,
490 smb2req,
492 fsp,
493 lck,
494 data,
495 data_size);
496 if (subreq) {
497 /* Wait for lease break response. */
499 /* Ensure we can't be closed in flight. */
500 if (!aio_add_req_to_fsp(fsp, req)) {
501 TALLOC_FREE(lck);
502 tevent_req_nterror(req, NT_STATUS_NO_MEMORY);
503 return tevent_req_post(req, ev);
506 TALLOC_FREE(lck);
507 return req;
511 status = smbd_do_setfilepathinfo(conn, smbreq, state,
512 file_info_level,
513 fsp,
514 fsp->fsp_name,
515 &data,
516 data_size,
517 &ret_size);
518 TALLOC_FREE(lck);
519 SAFE_FREE(data);
520 if (!NT_STATUS_IS_OK(status)) {
521 if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_LEVEL)) {
522 status = NT_STATUS_INVALID_INFO_CLASS;
524 tevent_req_nterror(req, status);
525 return tevent_req_post(req, ev);
527 break;
530 case SMB2_0_INFO_FILESYSTEM:
532 uint16_t file_info_level = in_file_info_class + 1000;
534 status = smbd_do_setfsinfo(conn, smbreq, state,
535 file_info_level,
536 fsp,
537 &in_input_buffer);
538 if (!NT_STATUS_IS_OK(status)) {
539 if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_LEVEL)) {
540 status = NT_STATUS_INVALID_INFO_CLASS;
542 tevent_req_nterror(req, status);
543 return tevent_req_post(req, ev);
545 break;
548 case SMB2_0_INFO_SECURITY:
550 if (!CAN_WRITE(conn)) {
551 tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
552 return tevent_req_post(req, ev);
555 status = set_sd_blob(fsp,
556 in_input_buffer.data,
557 in_input_buffer.length,
558 in_additional_information &
559 SMB_SUPPORTED_SECINFO_FLAGS);
560 if (!NT_STATUS_IS_OK(status)) {
561 tevent_req_nterror(req, status);
562 return tevent_req_post(req, ev);
564 break;
567 case SMB2_0_INFO_QUOTA:
569 #ifdef HAVE_SYS_QUOTAS
570 struct file_quota_information info = {0};
571 SMB_NTQUOTA_STRUCT qt = {0};
572 enum ndr_err_code err;
573 int ret;
575 if (!fsp->fake_file_handle) {
576 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
577 return tevent_req_post(req, ev);
579 err = ndr_pull_struct_blob(
580 &in_input_buffer, state, &info,
581 (ndr_pull_flags_fn_t)ndr_pull_file_quota_information);
582 if (!NDR_ERR_CODE_IS_SUCCESS(err)) {
583 tevent_req_nterror(req, NT_STATUS_UNSUCCESSFUL);
584 return tevent_req_post(req, ev);
587 qt.usedspace = info.quota_used;
589 qt.softlim = info.quota_threshold;
591 qt.hardlim = info.quota_limit;
593 qt.sid = info.sid;
594 ret = vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &qt.sid, &qt);
595 if (ret !=0 ) {
596 status = map_nt_error_from_unix(errno);
597 tevent_req_nterror(req, status);
598 return tevent_req_post(req, ev);
600 status = NT_STATUS_OK;
601 break;
602 #else
603 tevent_req_nterror(req, NT_STATUS_NOT_SUPPORTED);
604 return tevent_req_post(req, ev);
605 #endif
607 default:
608 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
609 return tevent_req_post(req, ev);
612 tevent_req_done(req);
613 return tevent_req_post(req, ev);
616 static NTSTATUS smbd_smb2_setinfo_recv(struct tevent_req *req)
618 NTSTATUS status;
620 if (tevent_req_is_nterror(req, &status)) {
621 tevent_req_received(req);
622 return status;
625 tevent_req_received(req);
626 return NT_STATUS_OK;