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s4:auth: Set ‘authoritative’ even if there is an error
[Samba.git] / source3 / smbd / smb1_nttrans.c
blobb9c9033649080347b4bcb7ea2e0e2e3960fa34f6
1 /*
2 Unix SMB/CIFS implementation.
3 SMB NT transaction handling
4 Copyright (C) Jeremy Allison 1994-2007
5 Copyright (C) Stefan (metze) Metzmacher 2003
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
19 */
20
21 #include "includes.h"
22 #include "system/filesys.h"
23 #include "smbd/smbd.h"
24 #include "smbd/globals.h"
25 #include "fake_file.h"
26 #include "../libcli/security/security.h"
27 #include "../librpc/gen_ndr/ndr_security.h"
28 #include "passdb/lookup_sid.h"
29 #include "auth.h"
30 #include "smbprofile.h"
31 #include "libsmb/libsmb.h"
32 #include "lib/util_ea.h"
33 #include "librpc/gen_ndr/ndr_quota.h"
34 #include "librpc/gen_ndr/ndr_security.h"
35
36 static char *nttrans_realloc(char **ptr, size_t size)
37 {
38 if (ptr==NULL) {
39 smb_panic("nttrans_realloc() called with NULL ptr");
40 }
41
42 *ptr = (char *)SMB_REALLOC(*ptr, size);
43 if(*ptr == NULL) {
44 return NULL;
45 }
46 memset(*ptr,'\0',size);
47 return *ptr;
48 }
49
50 /****************************************************************************
51 Send the required number of replies back.
52 We assume all fields other than the data fields are
53 set correctly for the type of call.
54 HACK ! Always assumes smb_setup field is zero.
55 ****************************************************************************/
56
57 static void send_nt_replies(connection_struct *conn,
58 struct smb_request *req, NTSTATUS nt_error,
59 char *params, int paramsize,
60 char *pdata, int datasize)
61 {
62 int data_to_send = datasize;
63 int params_to_send = paramsize;
64 int useable_space;
65 char *pp = params;
66 char *pd = pdata;
67 int params_sent_thistime, data_sent_thistime, total_sent_thistime;
68 int alignment_offset = 1;
69 int data_alignment_offset = 0;
70 struct smbXsrv_connection *xconn = req->xconn;
71 int max_send = xconn->smb1.sessions.max_send;
72
73 /*
74 * If there genuinely are no parameters or data to send just send
75 * the empty packet.
76 */
77
78 if(params_to_send == 0 && data_to_send == 0) {
79 reply_smb1_outbuf(req, 18, 0);
80 if (NT_STATUS_V(nt_error)) {
81 error_packet_set((char *)req->outbuf,
82 0, 0, nt_error,
83 __LINE__,__FILE__);
84 }
85 show_msg((char *)req->outbuf);
86 if (!smb1_srv_send(xconn,
87 (char *)req->outbuf,
88 true,
89 req->seqnum + 1,
90 IS_CONN_ENCRYPTED(conn))) {
91 exit_server_cleanly("send_nt_replies: smb1_srv_send failed.");
92 }
93 TALLOC_FREE(req->outbuf);
94 return;
95 }
96
97 /*
98 * When sending params and data ensure that both are nicely aligned.
99 * Only do this alignment when there is also data to send - else
100 * can cause NT redirector problems.
101 */
102
103 if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
104 data_alignment_offset = 4 - (params_to_send % 4);
105 }
106
107 /*
108 * Space is bufsize minus Netbios over TCP header minus SMB header.
109 * The alignment_offset is to align the param bytes on a four byte
110 * boundary (2 bytes for data len, one byte pad).
111 * NT needs this to work correctly.
112 */
113
114 useable_space = max_send - (smb_size
115 + 2 * 18 /* wct */
116 + alignment_offset
117 + data_alignment_offset);
118
119 if (useable_space < 0) {
120 char *msg = talloc_asprintf(
121 talloc_tos(),
122 "send_nt_replies failed sanity useable_space = %d!!!",
123 useable_space);
124 DEBUG(0, ("%s\n", msg));
125 exit_server_cleanly(msg);
126 }
127
128 while (params_to_send || data_to_send) {
129
130 /*
131 * Calculate whether we will totally or partially fill this packet.
132 */
133
134 total_sent_thistime = params_to_send + data_to_send;
135
136 /*
137 * We can never send more than useable_space.
138 */
139
140 total_sent_thistime = MIN(total_sent_thistime, useable_space);
141
142 reply_smb1_outbuf(req, 18,
143 total_sent_thistime + alignment_offset
144 + data_alignment_offset);
145
146 /*
147 * Set total params and data to be sent.
148 */
149
150 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
151 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
152
153 /*
154 * Calculate how many parameters and data we can fit into
155 * this packet. Parameters get precedence.
156 */
157
158 params_sent_thistime = MIN(params_to_send,useable_space);
159 data_sent_thistime = useable_space - params_sent_thistime;
160 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
161
162 SIVAL(req->outbuf, smb_ntr_ParameterCount,
163 params_sent_thistime);
164
165 if(params_sent_thistime == 0) {
166 SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
167 SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
168 } else {
169 /*
170 * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
171 * parameter bytes, however the first 4 bytes of outbuf are
172 * the Netbios over TCP header. Thus use smb_base() to subtract
173 * them from the calculation.
174 */
175
176 SIVAL(req->outbuf,smb_ntr_ParameterOffset,
177 ((smb_buf(req->outbuf)+alignment_offset)
178 - smb_base(req->outbuf)));
179 /*
180 * Absolute displacement of param bytes sent in this packet.
181 */
182
183 SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
184 pp - params);
185 }
186
187 /*
188 * Deal with the data portion.
189 */
190
191 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
192
193 if(data_sent_thistime == 0) {
194 SIVAL(req->outbuf,smb_ntr_DataOffset,0);
195 SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
196 } else {
197 /*
198 * The offset of the data bytes is the offset of the
199 * parameter bytes plus the number of parameters being sent this time.
200 */
201
202 SIVAL(req->outbuf, smb_ntr_DataOffset,
203 ((smb_buf(req->outbuf)+alignment_offset) -
204 smb_base(req->outbuf))
205 + params_sent_thistime + data_alignment_offset);
206 SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
207 }
208
209 /*
210 * Copy the param bytes into the packet.
211 */
212
213 if(params_sent_thistime) {
214 if (alignment_offset != 0) {
215 memset(smb_buf(req->outbuf), 0,
216 alignment_offset);
217 }
218 memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
219 params_sent_thistime);
220 }
221
222 /*
223 * Copy in the data bytes
224 */
225
226 if(data_sent_thistime) {
227 if (data_alignment_offset != 0) {
228 memset((smb_buf(req->outbuf)+alignment_offset+
229 params_sent_thistime), 0,
230 data_alignment_offset);
231 }
232 memcpy(smb_buf(req->outbuf)+alignment_offset
233 +params_sent_thistime+data_alignment_offset,
234 pd,data_sent_thistime);
235 }
236
237 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
238 params_sent_thistime, data_sent_thistime, useable_space));
239 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
240 params_to_send, data_to_send, paramsize, datasize));
241
242 if (NT_STATUS_V(nt_error)) {
243 error_packet_set((char *)req->outbuf,
244 0, 0, nt_error,
245 __LINE__,__FILE__);
246 }
247
248 /* Send the packet */
249 show_msg((char *)req->outbuf);
250 if (!smb1_srv_send(xconn,
251 (char *)req->outbuf,
252 true,
253 req->seqnum + 1,
254 IS_CONN_ENCRYPTED(conn))) {
255 exit_server_cleanly("send_nt_replies: smb1_srv_send failed.");
256 }
257
258 TALLOC_FREE(req->outbuf);
259
260 pp += params_sent_thistime;
261 pd += data_sent_thistime;
262
263 params_to_send -= params_sent_thistime;
264 data_to_send -= data_sent_thistime;
265
266 /*
267 * Sanity check
268 */
269
270 if(params_to_send < 0 || data_to_send < 0) {
271 DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
272 params_to_send, data_to_send));
273 exit_server_cleanly("send_nt_replies: internal error");
274 }
275 }
276 }
277
278 /****************************************************************************
279 Reply to an NT create and X call on a pipe
280 ****************************************************************************/
281
282 static void nt_open_pipe(char *fname, connection_struct *conn,
283 struct smb_request *req, uint16_t *ppnum)
284 {
285 files_struct *fsp;
286 NTSTATUS status;
287
288 DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
289
290 /* Strip \\ off the name if present. */
291 while (fname[0] == '\\') {
292 fname++;
293 }
294
295 status = open_np_file(req, fname, &fsp);
296 if (!NT_STATUS_IS_OK(status)) {
297 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
298 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
299 ERRDOS, ERRbadpipe);
300 return;
301 }
302 reply_nterror(req, status);
303 return;
304 }
305
306 *ppnum = fsp->fnum;
307 return;
308 }
309
310 /****************************************************************************
311 Reply to an NT create and X call for pipes.
312 ****************************************************************************/
313
314 static void do_ntcreate_pipe_open(connection_struct *conn,
315 struct smb_request *req)
316 {
317 char *fname = NULL;
318 uint16_t pnum = FNUM_FIELD_INVALID;
319 char *p = NULL;
320 uint32_t flags = IVAL(req->vwv+3, 1);
321 TALLOC_CTX *ctx = talloc_tos();
322
323 srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
324
325 if (!fname) {
326 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
327 ERRDOS, ERRbadpipe);
328 return;
329 }
330 nt_open_pipe(fname, conn, req, &pnum);
331
332 if (req->outbuf) {
333 /* error reply */
334 return;
335 }
336
337 /*
338 * Deal with pipe return.
339 */
340
341 if (flags & EXTENDED_RESPONSE_REQUIRED) {
342 /* This is very strange. We
343 * return 50 words, but only set
344 * the wcnt to 42 ? It's definitely
345 * what happens on the wire....
346 */
347 reply_smb1_outbuf(req, 50, 0);
348 SCVAL(req->outbuf,smb_wct,42);
349 } else {
350 reply_smb1_outbuf(req, 34, 0);
351 }
352
353 SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
354 SSVAL(req->outbuf, smb_vwv1, 0); /* no andx offset */
355
356 p = (char *)req->outbuf + smb_vwv2;
357 p++;
358 SSVAL(p,0,pnum);
359 p += 2;
360 SIVAL(p,0,FILE_WAS_OPENED);
361 p += 4;
362 p += 32;
363 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
364 p += 20;
365 /* File type. */
366 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
367 /* Device state. */
368 SSVAL(p,2, 0x5FF); /* ? */
369 p += 4;
370
371 if (flags & EXTENDED_RESPONSE_REQUIRED) {
372 p += 25;
373 SIVAL(p,0,FILE_GENERIC_ALL);
374 /*
375 * For pipes W2K3 seems to return
376 * 0x12019B next.
377 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
378 */
379 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
380 }
381
382 DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
383 }
384
385 struct case_semantics_state {
386 connection_struct *conn;
387 bool case_sensitive;
388 bool case_preserve;
389 bool short_case_preserve;
390 };
391
392 /****************************************************************************
393 Restore case semantics.
394 ****************************************************************************/
395
396 static int restore_case_semantics(struct case_semantics_state *state)
397 {
398 state->conn->case_sensitive = state->case_sensitive;
399 state->conn->case_preserve = state->case_preserve;
400 state->conn->short_case_preserve = state->short_case_preserve;
401 return 0;
402 }
403
404 /****************************************************************************
405 Save case semantics.
406 ****************************************************************************/
407
408 static struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx,
409 connection_struct *conn)
410 {
411 struct case_semantics_state *result;
412
413 if (!(result = talloc(mem_ctx, struct case_semantics_state))) {
414 return NULL;
415 }
416
417 result->conn = conn;
418 result->case_sensitive = conn->case_sensitive;
419 result->case_preserve = conn->case_preserve;
420 result->short_case_preserve = conn->short_case_preserve;
421
422 /* Set to POSIX. */
423 conn->case_sensitive = True;
424 conn->case_preserve = True;
425 conn->short_case_preserve = True;
426
427 talloc_set_destructor(result, restore_case_semantics);
428
429 return result;
430 }
431
432 /*
433 * Calculate the full path name given a relative fid.
434 */
435 static NTSTATUS get_relative_fid_filename(connection_struct *conn,
436 struct smb_request *req,
437 uint16_t root_dir_fid,
438 char *path,
439 char **path_out)
440 {
441 struct files_struct *dir_fsp = NULL;
442 char *new_path = NULL;
443
444 if (root_dir_fid == 0 || path == NULL) {
445 return NT_STATUS_INTERNAL_ERROR;
446 }
447
448 dir_fsp = file_fsp(req, root_dir_fid);
449 if (dir_fsp == NULL) {
450 return NT_STATUS_INVALID_HANDLE;
451 }
452
453 if (fsp_is_alternate_stream(dir_fsp)) {
454 return NT_STATUS_INVALID_HANDLE;
455 }
456
457 if (!dir_fsp->fsp_flags.is_directory) {
458 /*
459 * Check to see if this is a mac fork of some kind.
460 */
461 if (conn->fs_capabilities & FILE_NAMED_STREAMS) {
462 char *stream = NULL;
463
464 stream = strchr_m(path, ':');
465 if (stream != NULL) {
466 return NT_STATUS_OBJECT_PATH_NOT_FOUND;
467 }
468 }
469
470 /*
471 * We need to handle the case when we get a relative open
472 * relative to a file and the pathname is blank - this is a
473 * reopen! (hint from demyn plantenberg)
474 */
475 return NT_STATUS_INVALID_HANDLE;
476 }
477
478 if (ISDOT(dir_fsp->fsp_name->base_name)) {
479 /*
480 * We're at the toplevel dir, the final file name
481 * must not contain ./, as this is filtered out
482 * normally by srvstr_get_path and unix_convert
483 * explicitly rejects paths containing ./.
484 */
485 new_path = talloc_strdup(talloc_tos(), path);
486 } else {
487 /*
488 * Copy in the base directory name.
489 */
490
491 new_path = talloc_asprintf(talloc_tos(),
492 "%s/%s",
493 dir_fsp->fsp_name->base_name,
494 path);
495 }
496 if (new_path == NULL) {
497 return NT_STATUS_NO_MEMORY;
498 }
499
500 *path_out = new_path;
501 return NT_STATUS_OK;
502 }
503
504 /****************************************************************************
505 Reply to an NT create and X call.
506 ****************************************************************************/
507
508 void reply_ntcreate_and_X(struct smb_request *req)
509 {
510 connection_struct *conn = req->conn;
511 struct files_struct *dirfsp = NULL;
512 struct smb_filename *smb_fname = NULL;
513 char *fname = NULL;
514 uint32_t flags;
515 uint32_t access_mask;
516 uint32_t file_attributes;
517 uint32_t share_access;
518 uint32_t create_disposition;
519 uint32_t create_options;
520 uint16_t root_dir_fid;
521 uint64_t allocation_size;
522 /* Breakout the oplock request bits so we can set the
523 reply bits separately. */
524 uint32_t fattr=0;
525 off_t file_len = 0;
526 int info = 0;
527 files_struct *fsp = NULL;
528 char *p = NULL;
529 struct timespec create_timespec;
530 struct timespec c_timespec;
531 struct timespec a_timespec;
532 struct timespec m_timespec;
533 NTSTATUS status;
534 int oplock_request;
535 uint8_t oplock_granted = NO_OPLOCK_RETURN;
536 struct case_semantics_state *case_state = NULL;
537 uint32_t ucf_flags;
538 NTTIME twrp = 0;
539 TALLOC_CTX *ctx = talloc_tos();
540
541 START_PROFILE(SMBntcreateX);
542
543 if (req->wct < 24) {
544 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
545 goto out;
546 }
547
548 flags = IVAL(req->vwv+3, 1);
549 access_mask = IVAL(req->vwv+7, 1);
550 file_attributes = IVAL(req->vwv+13, 1);
551 share_access = IVAL(req->vwv+15, 1);
552 create_disposition = IVAL(req->vwv+17, 1);
553 create_options = IVAL(req->vwv+19, 1);
554 root_dir_fid = (uint16_t)IVAL(req->vwv+5, 1);
555
556 allocation_size = BVAL(req->vwv+9, 1);
557
558 srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
559 STR_TERMINATE, &status);
560
561 if (!NT_STATUS_IS_OK(status)) {
562 reply_nterror(req, status);
563 goto out;
564 }
565
566 DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
567 "file_attributes = 0x%x, share_access = 0x%x, "
568 "create_disposition = 0x%x create_options = 0x%x "
569 "root_dir_fid = 0x%x, fname = %s\n",
570 (unsigned int)flags,
571 (unsigned int)access_mask,
572 (unsigned int)file_attributes,
573 (unsigned int)share_access,
574 (unsigned int)create_disposition,
575 (unsigned int)create_options,
576 (unsigned int)root_dir_fid,
577 fname));
578
579 /*
580 * we need to remove ignored bits when they come directly from the client
581 * because we reuse some of them for internal stuff
582 */
583 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
584
585 /*
586 * If it's an IPC, use the pipe handler.
587 */
588
589 if (IS_IPC(conn)) {
590 if (lp_nt_pipe_support()) {
591 do_ntcreate_pipe_open(conn, req);
592 goto out;
593 }
594 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
595 goto out;
596 }
597
598 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
599 if (oplock_request) {
600 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
601 ? BATCH_OPLOCK : 0;
602 }
603
604 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
605 case_state = set_posix_case_semantics(ctx, conn);
606 if (!case_state) {
607 reply_nterror(req, NT_STATUS_NO_MEMORY);
608 goto out;
609 }
610 }
611
612 if (root_dir_fid != 0) {
613 char *new_fname = NULL;
614
615 status = get_relative_fid_filename(conn,
616 req,
617 root_dir_fid,
618 fname,
619 &new_fname);
620 if (!NT_STATUS_IS_OK(status)) {
621 reply_nterror(req, status);
622 goto out;
623 }
624 fname = new_fname;
625 }
626
627 ucf_flags = filename_create_ucf_flags(req, create_disposition);
628 if (ucf_flags & UCF_GMT_PATHNAME) {
629 extract_snapshot_token(fname, &twrp);
630 }
631 status = smb1_strip_dfs_path(ctx, &ucf_flags, &fname);
632 if (!NT_STATUS_IS_OK(status)) {
633 reply_nterror(req, status);
634 goto out;
635 }
636
637 status = filename_convert_dirfsp(
638 ctx, conn, fname, ucf_flags, twrp, &dirfsp, &smb_fname);
639
640 TALLOC_FREE(case_state);
641
642 if (!NT_STATUS_IS_OK(status)) {
643 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
644 reply_botherror(req,
645 NT_STATUS_PATH_NOT_COVERED,
646 ERRSRV, ERRbadpath);
647 goto out;
648 }
649 reply_nterror(req, status);
650 goto out;
651 }
652
653 /*
654 * Bug #6898 - clients using Windows opens should
655 * never be able to set this attribute into the
656 * VFS.
657 */
658 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
659
660 status = SMB_VFS_CREATE_FILE(
661 conn, /* conn */
662 req, /* req */
663 dirfsp, /* dirfsp */
664 smb_fname, /* fname */
665 access_mask, /* access_mask */
666 share_access, /* share_access */
667 create_disposition, /* create_disposition*/
668 create_options, /* create_options */
669 file_attributes, /* file_attributes */
670 oplock_request, /* oplock_request */
671 NULL, /* lease */
672 allocation_size, /* allocation_size */
673 0, /* private_flags */
674 NULL, /* sd */
675 NULL, /* ea_list */
676 &fsp, /* result */
677 &info, /* pinfo */
678 NULL, NULL); /* create context */
679
680 if (!NT_STATUS_IS_OK(status)) {
681 if (open_was_deferred(req->xconn, req->mid)) {
682 /* We have re-scheduled this call, no error. */
683 goto out;
684 }
685 if (NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION)) {
686 bool ok = defer_smb1_sharing_violation(req);
687 if (ok) {
688 goto out;
689 }
690 }
691 reply_openerror(req, status);
692 goto out;
693 }
694
695 /* Ensure we're pointing at the correct stat struct. */
696 smb_fname = fsp->fsp_name;
697
698 /*
699 * If the caller set the extended oplock request bit
700 * and we granted one (by whatever means) - set the
701 * correct bit for extended oplock reply.
702 */
703
704 if (oplock_request &&
705 (lp_fake_oplocks(SNUM(conn))
706 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
707
708 /*
709 * Exclusive oplock granted
710 */
711
712 if (flags & REQUEST_BATCH_OPLOCK) {
713 oplock_granted = BATCH_OPLOCK_RETURN;
714 } else {
715 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
716 }
717 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
718 oplock_granted = LEVEL_II_OPLOCK_RETURN;
719 } else {
720 oplock_granted = NO_OPLOCK_RETURN;
721 }
722
723 file_len = smb_fname->st.st_ex_size;
724
725 if (flags & EXTENDED_RESPONSE_REQUIRED) {
726 /* This is very strange. We
727 * return 50 words, but only set
728 * the wcnt to 42 ? It's definitely
729 * what happens on the wire....
730 */
731 reply_smb1_outbuf(req, 50, 0);
732 SCVAL(req->outbuf,smb_wct,42);
733 } else {
734 reply_smb1_outbuf(req, 34, 0);
735 }
736
737 SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
738 SSVAL(req->outbuf, smb_vwv1, 0); /* no andx offset */
739
740 p = (char *)req->outbuf + smb_vwv2;
741
742 SCVAL(p, 0, oplock_granted);
743
744 p++;
745 SSVAL(p,0,fsp->fnum);
746 p += 2;
747 if ((create_disposition == FILE_SUPERSEDE)
748 && (info == FILE_WAS_OVERWRITTEN)) {
749 SIVAL(p,0,FILE_WAS_SUPERSEDED);
750 } else {
751 SIVAL(p,0,info);
752 }
753 p += 4;
754
755 fattr = fdos_mode(fsp);
756 if (fattr == 0) {
757 fattr = FILE_ATTRIBUTE_NORMAL;
758 }
759
760 /* Create time. */
761 create_timespec = get_create_timespec(conn, fsp, smb_fname);
762 a_timespec = smb_fname->st.st_ex_atime;
763 m_timespec = smb_fname->st.st_ex_mtime;
764 c_timespec = get_change_timespec(conn, fsp, smb_fname);
765
766 if (lp_dos_filetime_resolution(SNUM(conn))) {
767 dos_filetime_timespec(&create_timespec);
768 dos_filetime_timespec(&a_timespec);
769 dos_filetime_timespec(&m_timespec);
770 dos_filetime_timespec(&c_timespec);
771 }
772
773 put_long_date_full_timespec(conn->ts_res, p, &create_timespec); /* create time. */
774 p += 8;
775 put_long_date_full_timespec(conn->ts_res, p, &a_timespec); /* access time */
776 p += 8;
777 put_long_date_full_timespec(conn->ts_res, p, &m_timespec); /* write time */
778 p += 8;
779 put_long_date_full_timespec(conn->ts_res, p, &c_timespec); /* change time */
780 p += 8;
781 SIVAL(p,0,fattr); /* File Attributes. */
782 p += 4;
783 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
784 p += 8;
785 SOFF_T(p,0,file_len);
786 p += 8;
787 if (flags & EXTENDED_RESPONSE_REQUIRED) {
788 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
789 unsigned int num_streams = 0;
790 struct stream_struct *streams = NULL;
791
792 if (lp_ea_support(SNUM(conn))) {
793 size_t num_names = 0;
794 /* Do we have any EA's ? */
795 status = get_ea_names_from_fsp(
796 ctx, smb_fname->fsp, NULL, &num_names);
797 if (NT_STATUS_IS_OK(status) && num_names) {
798 file_status &= ~NO_EAS;
799 }
800 }
801
802 status = vfs_fstreaminfo(smb_fname->fsp, ctx,
803 &num_streams, &streams);
804 /* There is always one stream, ::$DATA. */
805 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
806 file_status &= ~NO_SUBSTREAMS;
807 }
808 TALLOC_FREE(streams);
809 SSVAL(p,2,file_status);
810 }
811 p += 4;
812 SCVAL(p,0,fsp->fsp_flags.is_directory ? 1 : 0);
813
814 if (flags & EXTENDED_RESPONSE_REQUIRED) {
815 uint32_t perms = 0;
816 p += 25;
817 if (fsp->fsp_flags.is_directory ||
818 fsp->fsp_flags.can_write ||
819 can_write_to_fsp(fsp))
820 {
821 perms = FILE_GENERIC_ALL;
822 } else {
823 perms = FILE_GENERIC_READ|FILE_EXECUTE;
824 }
825 SIVAL(p,0,perms);
826 }
827
828 DEBUG(5,("reply_ntcreate_and_X: %s, open name = %s\n",
829 fsp_fnum_dbg(fsp), smb_fname_str_dbg(smb_fname)));
830
831 out:
832 END_PROFILE(SMBntcreateX);
833 return;
834 }
835
836 /****************************************************************************
837 Reply to a NT_TRANSACT_CREATE call to open a pipe.
838 ****************************************************************************/
839
840 static void do_nt_transact_create_pipe(connection_struct *conn,
841 struct smb_request *req,
842 uint16_t **ppsetup, uint32_t setup_count,
843 char **ppparams, uint32_t parameter_count,
844 char **ppdata, uint32_t data_count)
845 {
846 char *fname = NULL;
847 char *params = *ppparams;
848 uint16_t pnum = FNUM_FIELD_INVALID;
849 char *p = NULL;
850 NTSTATUS status;
851 size_t param_len;
852 uint32_t flags;
853 TALLOC_CTX *ctx = talloc_tos();
854
855 /*
856 * Ensure minimum number of parameters sent.
857 */
858
859 if(parameter_count < 54) {
860 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
861 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
862 return;
863 }
864
865 flags = IVAL(params,0);
866
867 if (req->posix_pathnames) {
868 srvstr_get_path_posix(ctx,
869 params,
870 req->flags2,
871 &fname,
872 params+53,
873 parameter_count-53,
874 STR_TERMINATE,
875 &status);
876 } else {
877 srvstr_get_path(ctx,
878 params,
879 req->flags2,
880 &fname,
881 params+53,
882 parameter_count-53,
883 STR_TERMINATE,
884 &status);
885 }
886 if (!NT_STATUS_IS_OK(status)) {
887 reply_nterror(req, status);
888 return;
889 }
890
891 nt_open_pipe(fname, conn, req, &pnum);
892
893 if (req->outbuf) {
894 /* Error return */
895 return;
896 }
897
898 /* Realloc the size of parameters and data we will return */
899 if (flags & EXTENDED_RESPONSE_REQUIRED) {
900 /* Extended response is 32 more byyes. */
901 param_len = 101;
902 } else {
903 param_len = 69;
904 }
905 params = nttrans_realloc(ppparams, param_len);
906 if(params == NULL) {
907 reply_nterror(req, NT_STATUS_NO_MEMORY);
908 return;
909 }
910
911 p = params;
912 SCVAL(p,0,NO_OPLOCK_RETURN);
913
914 p += 2;
915 SSVAL(p,0,pnum);
916 p += 2;
917 SIVAL(p,0,FILE_WAS_OPENED);
918 p += 8;
919
920 p += 32;
921 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
922 p += 20;
923 /* File type. */
924 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
925 /* Device state. */
926 SSVAL(p,2, 0x5FF); /* ? */
927 p += 4;
928
929 if (flags & EXTENDED_RESPONSE_REQUIRED) {
930 p += 25;
931 SIVAL(p,0,FILE_GENERIC_ALL);
932 /*
933 * For pipes W2K3 seems to return
934 * 0x12019B next.
935 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
936 */
937 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
938 }
939
940 DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
941
942 /* Send the required number of replies */
943 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
944
945 return;
946 }
947
948 /****************************************************************************
949 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
950 ****************************************************************************/
951
952 static void call_nt_transact_create(connection_struct *conn,
953 struct smb_request *req,
954 uint16_t **ppsetup, uint32_t setup_count,
955 char **ppparams, uint32_t parameter_count,
956 char **ppdata, uint32_t data_count,
957 uint32_t max_data_count)
958 {
959 struct smb_filename *smb_fname = NULL;
960 char *fname = NULL;
961 char *params = *ppparams;
962 char *data = *ppdata;
963 /* Breakout the oplock request bits so we can set the reply bits separately. */
964 uint32_t fattr=0;
965 off_t file_len = 0;
966 int info = 0;
967 struct files_struct *dirfsp = NULL;
968 files_struct *fsp = NULL;
969 char *p = NULL;
970 uint32_t flags;
971 uint32_t access_mask;
972 uint32_t file_attributes;
973 uint32_t share_access;
974 uint32_t create_disposition;
975 uint32_t create_options;
976 uint32_t sd_len;
977 struct security_descriptor *sd = NULL;
978 uint32_t ea_len;
979 uint16_t root_dir_fid;
980 struct timespec create_timespec;
981 struct timespec c_timespec;
982 struct timespec a_timespec;
983 struct timespec m_timespec;
984 struct ea_list *ea_list = NULL;
985 NTSTATUS status;
986 size_t param_len;
987 uint64_t allocation_size;
988 int oplock_request;
989 uint8_t oplock_granted;
990 struct case_semantics_state *case_state = NULL;
991 uint32_t ucf_flags;
992 NTTIME twrp = 0;
993 TALLOC_CTX *ctx = talloc_tos();
994
995 DEBUG(5,("call_nt_transact_create\n"));
996
997 /*
998 * If it's an IPC, use the pipe handler.
999 */
1000
1001 if (IS_IPC(conn)) {
1002 if (lp_nt_pipe_support()) {
1003 do_nt_transact_create_pipe(
1004 conn, req,
1005 ppsetup, setup_count,
1006 ppparams, parameter_count,
1007 ppdata, data_count);
1008 goto out;
1009 }
1010 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1011 goto out;
1012 }
1013
1014 /*
1015 * Ensure minimum number of parameters sent.
1016 */
1017
1018 if(parameter_count < 54) {
1019 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1020 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1021 goto out;
1022 }
1023
1024 flags = IVAL(params,0);
1025 access_mask = IVAL(params,8);
1026 file_attributes = IVAL(params,20);
1027 share_access = IVAL(params,24);
1028 create_disposition = IVAL(params,28);
1029 create_options = IVAL(params,32);
1030 sd_len = IVAL(params,36);
1031 ea_len = IVAL(params,40);
1032 root_dir_fid = (uint16_t)IVAL(params,4);
1033 allocation_size = BVAL(params,12);
1034
1035 /*
1036 * we need to remove ignored bits when they come directly from the client
1037 * because we reuse some of them for internal stuff
1038 */
1039 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
1040
1041 if (req->posix_pathnames) {
1042 srvstr_get_path_posix(ctx,
1043 params,
1044 req->flags2,
1045 &fname,
1046 params+53,
1047 parameter_count-53,
1048 STR_TERMINATE,
1049 &status);
1050 } else {
1051 srvstr_get_path(ctx,
1052 params,
1053 req->flags2,
1054 &fname,
1055 params+53,
1056 parameter_count-53,
1057 STR_TERMINATE,
1058 &status);
1059 }
1060 if (!NT_STATUS_IS_OK(status)) {
1061 reply_nterror(req, status);
1062 goto out;
1063 }
1064
1065 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
1066 case_state = set_posix_case_semantics(ctx, conn);
1067 if (!case_state) {
1068 reply_nterror(req, NT_STATUS_NO_MEMORY);
1069 goto out;
1070 }
1071 }
1072
1073 if (root_dir_fid != 0) {
1074 char *new_fname = NULL;
1075
1076 status = get_relative_fid_filename(conn,
1077 req,
1078 root_dir_fid,
1079 fname,
1080 &new_fname);
1081 if (!NT_STATUS_IS_OK(status)) {
1082 reply_nterror(req, status);
1083 goto out;
1084 }
1085 fname = new_fname;
1086 }
1087
1088 ucf_flags = filename_create_ucf_flags(req, create_disposition);
1089 if (ucf_flags & UCF_GMT_PATHNAME) {
1090 extract_snapshot_token(fname, &twrp);
1091 }
1092 status = smb1_strip_dfs_path(ctx, &ucf_flags, &fname);
1093 if (!NT_STATUS_IS_OK(status)) {
1094 reply_nterror(req, status);
1095 goto out;
1096 }
1097
1098 status = filename_convert_dirfsp(ctx,
1099 conn,
1100 fname,
1101 ucf_flags,
1102 twrp,
1103 &dirfsp,
1104 &smb_fname);
1105
1106 TALLOC_FREE(case_state);
1107
1108 if (!NT_STATUS_IS_OK(status)) {
1109 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1110 reply_botherror(req,
1111 NT_STATUS_PATH_NOT_COVERED,
1112 ERRSRV, ERRbadpath);
1113 goto out;
1114 }
1115 reply_nterror(req, status);
1116 goto out;
1117 }
1118
1119 /* Ensure the data_len is correct for the sd and ea values given. */
1120 if ((ea_len + sd_len > data_count)
1121 || (ea_len > data_count) || (sd_len > data_count)
1122 || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
1123 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
1124 "%u, data_count = %u\n", (unsigned int)ea_len,
1125 (unsigned int)sd_len, (unsigned int)data_count));
1126 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1127 goto out;
1128 }
1129
1130 if (sd_len) {
1131 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
1132 sd_len));
1133
1134 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
1135 &sd);
1136 if (!NT_STATUS_IS_OK(status)) {
1137 DEBUG(10, ("call_nt_transact_create: "
1138 "unmarshall_sec_desc failed: %s\n",
1139 nt_errstr(status)));
1140 reply_nterror(req, status);
1141 goto out;
1142 }
1143 }
1144
1145 if (ea_len) {
1146 if (!lp_ea_support(SNUM(conn))) {
1147 DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
1148 "EA's not supported.\n",
1149 (unsigned int)ea_len));
1150 reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
1151 goto out;
1152 }
1153
1154 if (ea_len < 10) {
1155 DEBUG(10,("call_nt_transact_create - ea_len = %u - "
1156 "too small (should be more than 10)\n",
1157 (unsigned int)ea_len ));
1158 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1159 goto out;
1160 }
1161
1162 /* We have already checked that ea_len <= data_count here. */
1163 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
1164 ea_len);
1165 if (ea_list == NULL) {
1166 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1167 goto out;
1168 }
1169
1170 if (!req->posix_pathnames &&
1171 ea_list_has_invalid_name(ea_list)) {
1172 /* Realloc the size of parameters and data we will return */
1173 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1174 /* Extended response is 32 more bytes. */
1175 param_len = 101;
1176 } else {
1177 param_len = 69;
1178 }
1179 params = nttrans_realloc(ppparams, param_len);
1180 if(params == NULL) {
1181 reply_nterror(req, NT_STATUS_NO_MEMORY);
1182 goto out;
1183 }
1184
1185 memset(params, '\0', param_len);
1186 send_nt_replies(conn, req, STATUS_INVALID_EA_NAME,
1187 params, param_len, NULL, 0);
1188 goto out;
1189 }
1190 }
1191
1192 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1193 if (oplock_request) {
1194 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1195 ? BATCH_OPLOCK : 0;
1196 }
1197
1198 /*
1199 * Bug #6898 - clients using Windows opens should
1200 * never be able to set this attribute into the
1201 * VFS.
1202 */
1203 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
1204
1205 status = SMB_VFS_CREATE_FILE(
1206 conn, /* conn */
1207 req, /* req */
1208 dirfsp, /* dirfsp */
1209 smb_fname, /* fname */
1210 access_mask, /* access_mask */
1211 share_access, /* share_access */
1212 create_disposition, /* create_disposition*/
1213 create_options, /* create_options */
1214 file_attributes, /* file_attributes */
1215 oplock_request, /* oplock_request */
1216 NULL, /* lease */
1217 allocation_size, /* allocation_size */
1218 0, /* private_flags */
1219 sd, /* sd */
1220 ea_list, /* ea_list */
1221 &fsp, /* result */
1222 &info, /* pinfo */
1223 NULL, NULL); /* create context */
1224
1225 if(!NT_STATUS_IS_OK(status)) {
1226 if (open_was_deferred(req->xconn, req->mid)) {
1227 /* We have re-scheduled this call, no error. */
1228 return;
1229 }
1230 if (NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION)) {
1231 bool ok = defer_smb1_sharing_violation(req);
1232 if (ok) {
1233 return;
1234 }
1235 }
1236 reply_openerror(req, status);
1237 goto out;
1238 }
1239
1240 /* Ensure we're pointing at the correct stat struct. */
1241 TALLOC_FREE(smb_fname);
1242 smb_fname = fsp->fsp_name;
1243
1244 /*
1245 * If the caller set the extended oplock request bit
1246 * and we granted one (by whatever means) - set the
1247 * correct bit for extended oplock reply.
1248 */
1249
1250 if (oplock_request &&
1251 (lp_fake_oplocks(SNUM(conn))
1252 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1253
1254 /*
1255 * Exclusive oplock granted
1256 */
1257
1258 if (flags & REQUEST_BATCH_OPLOCK) {
1259 oplock_granted = BATCH_OPLOCK_RETURN;
1260 } else {
1261 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1262 }
1263 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1264 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1265 } else {
1266 oplock_granted = NO_OPLOCK_RETURN;
1267 }
1268
1269 file_len = smb_fname->st.st_ex_size;
1270
1271 /* Realloc the size of parameters and data we will return */
1272 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1273 /* Extended response is 32 more byyes. */
1274 param_len = 101;
1275 } else {
1276 param_len = 69;
1277 }
1278 params = nttrans_realloc(ppparams, param_len);
1279 if(params == NULL) {
1280 reply_nterror(req, NT_STATUS_NO_MEMORY);
1281 goto out;
1282 }
1283
1284 p = params;
1285 SCVAL(p, 0, oplock_granted);
1286
1287 p += 2;
1288 SSVAL(p,0,fsp->fnum);
1289 p += 2;
1290 if ((create_disposition == FILE_SUPERSEDE)
1291 && (info == FILE_WAS_OVERWRITTEN)) {
1292 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1293 } else {
1294 SIVAL(p,0,info);
1295 }
1296 p += 8;
1297
1298 fattr = fdos_mode(fsp);
1299 if (fattr == 0) {
1300 fattr = FILE_ATTRIBUTE_NORMAL;
1301 }
1302
1303 /* Create time. */
1304 create_timespec = get_create_timespec(conn, fsp, smb_fname);
1305 a_timespec = smb_fname->st.st_ex_atime;
1306 m_timespec = smb_fname->st.st_ex_mtime;
1307 c_timespec = get_change_timespec(conn, fsp, smb_fname);
1308
1309 if (lp_dos_filetime_resolution(SNUM(conn))) {
1310 dos_filetime_timespec(&create_timespec);
1311 dos_filetime_timespec(&a_timespec);
1312 dos_filetime_timespec(&m_timespec);
1313 dos_filetime_timespec(&c_timespec);
1314 }
1315
1316 put_long_date_full_timespec(conn->ts_res, p, &create_timespec); /* create time. */
1317 p += 8;
1318 put_long_date_full_timespec(conn->ts_res, p, &a_timespec); /* access time */
1319 p += 8;
1320 put_long_date_full_timespec(conn->ts_res, p, &m_timespec); /* write time */
1321 p += 8;
1322 put_long_date_full_timespec(conn->ts_res, p, &c_timespec); /* change time */
1323 p += 8;
1324 SIVAL(p,0,fattr); /* File Attributes. */
1325 p += 4;
1326 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1327 p += 8;
1328 SOFF_T(p,0,file_len);
1329 p += 8;
1330 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1331 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
1332 unsigned int num_streams = 0;
1333 struct stream_struct *streams = NULL;
1334
1335 if (lp_ea_support(SNUM(conn))) {
1336 size_t num_names = 0;
1337 /* Do we have any EA's ? */
1338 status = get_ea_names_from_fsp(
1339 ctx, smb_fname->fsp, NULL, &num_names);
1340 if (NT_STATUS_IS_OK(status) && num_names) {
1341 file_status &= ~NO_EAS;
1342 }
1343 }
1344
1345 status = vfs_fstreaminfo(smb_fname->fsp, ctx,
1346 &num_streams, &streams);
1347 /* There is always one stream, ::$DATA. */
1348 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
1349 file_status &= ~NO_SUBSTREAMS;
1350 }
1351 TALLOC_FREE(streams);
1352 SSVAL(p,2,file_status);
1353 }
1354 p += 4;
1355 SCVAL(p,0,fsp->fsp_flags.is_directory ? 1 : 0);
1356
1357 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1358 uint32_t perms = 0;
1359 p += 25;
1360 if (fsp->fsp_flags.is_directory ||
1361 fsp->fsp_flags.can_write ||
1362 can_write_to_fsp(fsp))
1363 {
1364 perms = FILE_GENERIC_ALL;
1365 } else {
1366 perms = FILE_GENERIC_READ|FILE_EXECUTE;
1367 }
1368 SIVAL(p,0,perms);
1369 }
1370
1371 DEBUG(5,("call_nt_transact_create: open name = %s\n",
1372 smb_fname_str_dbg(smb_fname)));
1373
1374 /* Send the required number of replies */
1375 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1376 out:
1377 return;
1378 }
1379
1380 /****************************************************************************
1381 Reply to a NT CANCEL request.
1382 conn POINTER CAN BE NULL HERE !
1383 ****************************************************************************/
1384
1385 void reply_ntcancel(struct smb_request *req)
1386 {
1387 struct smbXsrv_connection *xconn = req->xconn;
1388 struct smbd_server_connection *sconn = req->sconn;
1389 bool found;
1390
1391 /*
1392 * Go through and cancel any pending change notifies.
1393 */
1394
1395 START_PROFILE(SMBntcancel);
1396 smb1_srv_cancel_sign_response(xconn);
1397 found = remove_pending_change_notify_requests_by_mid(sconn, req->mid);
1398 if (!found) {
1399 smbd_smb1_brl_finish_by_mid(sconn, req->mid);
1400 }
1401
1402 DEBUG(3,("reply_ntcancel: cancel called on mid = %llu.\n",
1403 (unsigned long long)req->mid));
1404
1405 END_PROFILE(SMBntcancel);
1406 return;
1407 }
1408
1409 /****************************************************************************
1410 Reply to a NT rename request.
1411 ****************************************************************************/
1412
1413 void reply_ntrename(struct smb_request *req)
1414 {
1415 connection_struct *conn = req->conn;
1416 struct files_struct *src_dirfsp = NULL;
1417 struct smb_filename *smb_fname_old = NULL;
1418 struct files_struct *dst_dirfsp = NULL;
1419 struct smb_filename *smb_fname_new = NULL;
1420 char *oldname = NULL;
1421 char *newname = NULL;
1422 const char *dst_original_lcomp = NULL;
1423 const char *p;
1424 NTSTATUS status;
1425 uint32_t attrs;
1426 uint32_t ucf_flags_src = ucf_flags_from_smb_request(req);
1427 NTTIME src_twrp = 0;
1428 uint32_t ucf_flags_dst = ucf_flags_from_smb_request(req);
1429 NTTIME dst_twrp = 0;
1430 uint16_t rename_type;
1431 TALLOC_CTX *ctx = talloc_tos();
1432 bool stream_rename = false;
1433
1434 START_PROFILE(SMBntrename);
1435
1436 if (req->wct < 4) {
1437 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1438 goto out;
1439 }
1440
1441 attrs = SVAL(req->vwv+0, 0);
1442 rename_type = SVAL(req->vwv+1, 0);
1443
1444 p = (const char *)req->buf + 1;
1445 p += srvstr_get_path_req(ctx, req, &oldname, p, STR_TERMINATE,
1446 &status);
1447 if (!NT_STATUS_IS_OK(status)) {
1448 reply_nterror(req, status);
1449 goto out;
1450 }
1451
1452 if (!req->posix_pathnames && ms_has_wild(oldname)) {
1453 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1454 goto out;
1455 }
1456
1457 p++;
1458 p += srvstr_get_path_req(ctx, req, &newname, p, STR_TERMINATE,
1459 &status);
1460 if (!NT_STATUS_IS_OK(status)) {
1461 reply_nterror(req, status);
1462 goto out;
1463 }
1464
1465 if (!req->posix_pathnames && ms_has_wild(newname)) {
1466 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1467 goto out;
1468 }
1469
1470 if (!req->posix_pathnames) {
1471 /* The newname must begin with a ':' if the
1472 oldname contains a ':'. */
1473 if (strchr_m(oldname, ':')) {
1474 if (newname[0] != ':') {
1475 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1476 goto out;
1477 }
1478 stream_rename = true;
1479 }
1480 }
1481
1482 if (ucf_flags_src & UCF_GMT_PATHNAME) {
1483 extract_snapshot_token(oldname, &src_twrp);
1484 }
1485 status = smb1_strip_dfs_path(ctx, &ucf_flags_src, &oldname);
1486 if (!NT_STATUS_IS_OK(status)) {
1487 reply_nterror(req, status);
1488 goto out;
1489 }
1490
1491 status = filename_convert_dirfsp(ctx,
1492 conn,
1493 oldname,
1494 ucf_flags_src,
1495 src_twrp,
1496 &src_dirfsp,
1497 &smb_fname_old);
1498 if (!NT_STATUS_IS_OK(status)) {
1499 if (NT_STATUS_EQUAL(status,
1500 NT_STATUS_PATH_NOT_COVERED)) {
1501 reply_botherror(req,
1502 NT_STATUS_PATH_NOT_COVERED,
1503 ERRSRV, ERRbadpath);
1504 goto out;
1505 }
1506 reply_nterror(req, status);
1507 goto out;
1508 }
1509
1510 if (stream_rename) {
1511 /*
1512 * No point in calling filename_convert()
1513 * on a raw stream name. It can never find
1514 * the file anyway. Use the same logic as
1515 * SMB2_FILE_RENAME_INFORMATION_INTERNAL
1516 * and generate smb_fname_new directly.
1517 */
1518 smb_fname_new = synthetic_smb_fname(talloc_tos(),
1519 smb_fname_old->base_name,
1520 newname,
1521 NULL,
1522 smb_fname_old->twrp,
1523 smb_fname_old->flags);
1524 if (smb_fname_new == NULL) {
1525 reply_nterror(req, NT_STATUS_NO_MEMORY);
1526 goto out;
1527 }
1528 } else {
1529 if (ucf_flags_dst & UCF_GMT_PATHNAME) {
1530 extract_snapshot_token(newname,
1531 &dst_twrp);
1532 }
1533 status = smb1_strip_dfs_path(ctx, &ucf_flags_dst, &newname);
1534 if (!NT_STATUS_IS_OK(status)) {
1535 reply_nterror(req, status);
1536 goto out;
1537 }
1538 status = filename_convert_dirfsp(ctx,
1539 conn,
1540 newname,
1541 ucf_flags_dst,
1542 dst_twrp,
1543 &dst_dirfsp,
1544 &smb_fname_new);
1545 if (!NT_STATUS_IS_OK(status)) {
1546 if (NT_STATUS_EQUAL(status,
1547 NT_STATUS_PATH_NOT_COVERED)) {
1548 reply_botherror(req,
1549 NT_STATUS_PATH_NOT_COVERED,
1550 ERRSRV, ERRbadpath);
1551 goto out;
1552 }
1553 reply_nterror(req, status);
1554 goto out;
1555 }
1556 }
1557
1558 /* Get the last component of the destination for rename_internals(). */
1559 dst_original_lcomp = get_original_lcomp(ctx,
1560 conn,
1561 newname,
1562 ucf_flags_dst);
1563 if (dst_original_lcomp == NULL) {
1564 reply_nterror(req, NT_STATUS_NO_MEMORY);
1565 goto out;
1566 }
1567
1568
1569 DEBUG(3,("reply_ntrename: %s -> %s\n",
1570 smb_fname_str_dbg(smb_fname_old),
1571 smb_fname_str_dbg(smb_fname_new)));
1572
1573 switch(rename_type) {
1574 case RENAME_FLAG_RENAME:
1575 status = rename_internals(ctx,
1576 conn,
1577 req,
1578 src_dirfsp,
1579 smb_fname_old,
1580 dst_dirfsp,
1581 smb_fname_new,
1582 dst_original_lcomp,
1583 attrs,
1584 false,
1585 DELETE_ACCESS);
1586 break;
1587 case RENAME_FLAG_HARD_LINK:
1588 status = hardlink_internals(ctx,
1589 conn,
1590 req,
1591 false,
1592 src_dirfsp,
1593 smb_fname_old,
1594 dst_dirfsp,
1595 smb_fname_new);
1596 break;
1597 case RENAME_FLAG_COPY:
1598 status = copy_internals(ctx,
1599 conn,
1600 req,
1601 src_dirfsp,
1602 smb_fname_old,
1603 dst_dirfsp,
1604 smb_fname_new,
1605 attrs);
1606 break;
1607 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1608 status = NT_STATUS_INVALID_PARAMETER;
1609 break;
1610 default:
1611 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1612 break;
1613 }
1614
1615 if (!NT_STATUS_IS_OK(status)) {
1616 if (open_was_deferred(req->xconn, req->mid)) {
1617 /* We have re-scheduled this call. */
1618 goto out;
1619 }
1620 if (NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION)) {
1621 bool ok = defer_smb1_sharing_violation(req);
1622 if (ok) {
1623 goto out;
1624 }
1625 }
1626
1627 reply_nterror(req, status);
1628 goto out;
1629 }
1630
1631 reply_smb1_outbuf(req, 0, 0);
1632 out:
1633 END_PROFILE(SMBntrename);
1634 return;
1635 }
1636
1637 /****************************************************************************
1638 Reply to a notify change - queue the request and
1639 don't allow a directory to be opened.
1640 ****************************************************************************/
1641
1642 static void smbd_smb1_notify_reply(struct smb_request *req,
1643 NTSTATUS error_code,
1644 uint8_t *buf, size_t len)
1645 {
1646 send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1647 }
1648
1649 static void call_nt_transact_notify_change(connection_struct *conn,
1650 struct smb_request *req,
1651 uint16_t **ppsetup,
1652 uint32_t setup_count,
1653 char **ppparams,
1654 uint32_t parameter_count,
1655 char **ppdata, uint32_t data_count,
1656 uint32_t max_data_count,
1657 uint32_t max_param_count)
1658 {
1659 uint16_t *setup = *ppsetup;
1660 files_struct *fsp;
1661 uint32_t filter;
1662 NTSTATUS status;
1663 bool recursive;
1664
1665 if(setup_count < 6) {
1666 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1667 return;
1668 }
1669
1670 fsp = file_fsp(req, SVAL(setup,4));
1671 filter = IVAL(setup, 0);
1672 recursive = (SVAL(setup, 6) != 0) ? True : False;
1673
1674 DEBUG(3,("call_nt_transact_notify_change\n"));
1675
1676 if(!fsp) {
1677 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1678 return;
1679 }
1680
1681 {
1682 char *filter_string;
1683
1684 if (!(filter_string = notify_filter_string(NULL, filter))) {
1685 reply_nterror(req,NT_STATUS_NO_MEMORY);
1686 return;
1687 }
1688
1689 DEBUG(3,("call_nt_transact_notify_change: notify change "
1690 "called on %s, filter = %s, recursive = %d\n",
1691 fsp_str_dbg(fsp), filter_string, recursive));
1692
1693 TALLOC_FREE(filter_string);
1694 }
1695
1696 if((!fsp->fsp_flags.is_directory) || (conn != fsp->conn)) {
1697 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1698 return;
1699 }
1700
1701 if (fsp->notify == NULL) {
1702
1703 status = change_notify_create(fsp,
1704 max_param_count,
1705 filter,
1706 recursive);
1707 if (!NT_STATUS_IS_OK(status)) {
1708 DEBUG(10, ("change_notify_create returned %s\n",
1709 nt_errstr(status)));
1710 reply_nterror(req, status);
1711 return;
1712 }
1713 }
1714
1715 if (change_notify_fsp_has_changes(fsp)) {
1716
1717 /*
1718 * We've got changes pending, respond immediately
1719 */
1720
1721 /*
1722 * TODO: write a torture test to check the filtering behaviour
1723 * here.
1724 */
1725
1726 change_notify_reply(req,
1727 NT_STATUS_OK,
1728 max_param_count,
1729 fsp->notify,
1730 smbd_smb1_notify_reply);
1731
1732 /*
1733 * change_notify_reply() above has independently sent its
1734 * results
1735 */
1736 return;
1737 }
1738
1739 /*
1740 * No changes pending, queue the request
1741 */
1742
1743 status = change_notify_add_request(req,
1744 max_param_count,
1745 filter,
1746 recursive, fsp,
1747 smbd_smb1_notify_reply);
1748 if (!NT_STATUS_IS_OK(status)) {
1749 reply_nterror(req, status);
1750 }
1751 return;
1752 }
1753
1754 /****************************************************************************
1755 Reply to an NT transact rename command.
1756 ****************************************************************************/
1757
1758 static void call_nt_transact_rename(connection_struct *conn,
1759 struct smb_request *req,
1760 uint16_t **ppsetup, uint32_t setup_count,
1761 char **ppparams, uint32_t parameter_count,
1762 char **ppdata, uint32_t data_count,
1763 uint32_t max_data_count)
1764 {
1765 char *params = *ppparams;
1766 char *new_name = NULL;
1767 files_struct *fsp = NULL;
1768 NTSTATUS status;
1769 TALLOC_CTX *ctx = talloc_tos();
1770
1771 if(parameter_count < 5) {
1772 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1773 return;
1774 }
1775
1776 fsp = file_fsp(req, SVAL(params, 0));
1777 if (!check_fsp(conn, req, fsp)) {
1778 return;
1779 }
1780 if (req->posix_pathnames) {
1781 srvstr_get_path_posix(ctx,
1782 params,
1783 req->flags2,
1784 &new_name,
1785 params+4,
1786 parameter_count - 4,
1787 STR_TERMINATE,
1788 &status);
1789 } else {
1790 srvstr_get_path(ctx,
1791 params,
1792 req->flags2,
1793 &new_name,
1794 params+4,
1795 parameter_count - 4,
1796 STR_TERMINATE,
1797 &status);
1798 }
1799
1800 if (!NT_STATUS_IS_OK(status)) {
1801 reply_nterror(req, status);
1802 return;
1803 }
1804
1805 /*
1806 * W2K3 ignores this request as the RAW-RENAME test
1807 * demonstrates, so we do.
1808 */
1809 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1810
1811 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1812 fsp_str_dbg(fsp), new_name));
1813
1814 return;
1815 }
1816
1817 /****************************************************************************
1818 SMB1 reply to query a security descriptor.
1819 ****************************************************************************/
1820
1821 static void call_nt_transact_query_security_desc(connection_struct *conn,
1822 struct smb_request *req,
1823 uint16_t **ppsetup,
1824 uint32_t setup_count,
1825 char **ppparams,
1826 uint32_t parameter_count,
1827 char **ppdata,
1828 uint32_t data_count,
1829 uint32_t max_data_count)
1830 {
1831 char *params = *ppparams;
1832 char *data = *ppdata;
1833 size_t sd_size = 0;
1834 uint32_t security_info_wanted;
1835 files_struct *fsp = NULL;
1836 NTSTATUS status;
1837 uint8_t *marshalled_sd = NULL;
1838
1839 if(parameter_count < 8) {
1840 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1841 return;
1842 }
1843
1844 fsp = file_fsp(req, SVAL(params,0));
1845 if(!fsp) {
1846 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1847 return;
1848 }
1849
1850 security_info_wanted = IVAL(params,4);
1851
1852 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
1853 "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
1854 (unsigned int)security_info_wanted));
1855
1856 params = nttrans_realloc(ppparams, 4);
1857 if(params == NULL) {
1858 reply_nterror(req, NT_STATUS_NO_MEMORY);
1859 return;
1860 }
1861
1862 /*
1863 * Get the permissions to return.
1864 */
1865
1866 status = smbd_do_query_security_desc(conn,
1867 talloc_tos(),
1868 fsp,
1869 security_info_wanted &
1870 SMB_SUPPORTED_SECINFO_FLAGS,
1871 max_data_count,
1872 &marshalled_sd,
1873 &sd_size);
1874
1875 if (NT_STATUS_EQUAL(status, NT_STATUS_BUFFER_TOO_SMALL)) {
1876 SIVAL(params,0,(uint32_t)sd_size);
1877 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1878 params, 4, NULL, 0);
1879 return;
1880 }
1881
1882 if (!NT_STATUS_IS_OK(status)) {
1883 reply_nterror(req, status);
1884 return;
1885 }
1886
1887 SMB_ASSERT(sd_size > 0);
1888
1889 SIVAL(params,0,(uint32_t)sd_size);
1890
1891 if (max_data_count < sd_size) {
1892 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1893 params, 4, NULL, 0);
1894 return;
1895 }
1896
1897 /*
1898 * Allocate the data we will return.
1899 */
1900
1901 data = nttrans_realloc(ppdata, sd_size);
1902 if(data == NULL) {
1903 reply_nterror(req, NT_STATUS_NO_MEMORY);
1904 return;
1905 }
1906
1907 memcpy(data, marshalled_sd, sd_size);
1908
1909 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
1910
1911 return;
1912 }
1913
1914 /****************************************************************************
1915 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
1916 ****************************************************************************/
1917
1918 static void call_nt_transact_set_security_desc(connection_struct *conn,
1919 struct smb_request *req,
1920 uint16_t **ppsetup,
1921 uint32_t setup_count,
1922 char **ppparams,
1923 uint32_t parameter_count,
1924 char **ppdata,
1925 uint32_t data_count,
1926 uint32_t max_data_count)
1927 {
1928 char *params= *ppparams;
1929 char *data = *ppdata;
1930 files_struct *fsp = NULL;
1931 uint32_t security_info_sent = 0;
1932 NTSTATUS status;
1933
1934 if(parameter_count < 8) {
1935 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1936 return;
1937 }
1938
1939 if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
1940 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1941 return;
1942 }
1943
1944 if (!CAN_WRITE(fsp->conn)) {
1945 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1946 return;
1947 }
1948
1949 if(!lp_nt_acl_support(SNUM(conn))) {
1950 goto done;
1951 }
1952
1953 security_info_sent = IVAL(params,4);
1954
1955 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
1956 fsp_str_dbg(fsp), (unsigned int)security_info_sent));
1957
1958 if (data_count == 0) {
1959 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1960 return;
1961 }
1962
1963 status = set_sd_blob(fsp, (uint8_t *)data, data_count,
1964 security_info_sent & SMB_SUPPORTED_SECINFO_FLAGS);
1965 if (!NT_STATUS_IS_OK(status)) {
1966 reply_nterror(req, status);
1967 return;
1968 }
1969
1970 done:
1971 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1972 return;
1973 }
1974
1975 /****************************************************************************
1976 Reply to NT IOCTL
1977 ****************************************************************************/
1978
1979 static void call_nt_transact_ioctl(connection_struct *conn,
1980 struct smb_request *req,
1981 uint16_t **ppsetup, uint32_t setup_count,
1982 char **ppparams, uint32_t parameter_count,
1983 char **ppdata, uint32_t data_count,
1984 uint32_t max_data_count)
1985 {
1986 NTSTATUS status;
1987 uint32_t function;
1988 uint16_t fidnum;
1989 files_struct *fsp;
1990 uint8_t isFSctl;
1991 uint8_t compfilter;
1992 char *out_data = NULL;
1993 uint32_t out_data_len = 0;
1994 char *pdata = *ppdata;
1995 TALLOC_CTX *ctx = talloc_tos();
1996
1997 if (setup_count != 8) {
1998 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
1999 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2000 return;
2001 }
2002
2003 function = IVAL(*ppsetup, 0);
2004 fidnum = SVAL(*ppsetup, 4);
2005 isFSctl = CVAL(*ppsetup, 6);
2006 compfilter = CVAL(*ppsetup, 7);
2007
2008 DEBUG(10, ("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
2009 function, fidnum, isFSctl, compfilter));
2010
2011 fsp=file_fsp(req, fidnum);
2012
2013 /*
2014 * We don't really implement IOCTLs, especially on files.
2015 */
2016 if (!isFSctl) {
2017 DEBUG(10, ("isFSctl: 0x%02X indicates IOCTL, not FSCTL!\n",
2018 isFSctl));
2019 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2020 return;
2021 }
2022
2023 /* Has to be for an open file! */
2024 if (!check_fsp_open(conn, req, fsp)) {
2025 return;
2026 }
2027
2028 /*
2029 * out_data might be allocated by the VFS module, but talloc should be
2030 * used, and should be cleaned up when the request ends.
2031 */
2032 status = SMB_VFS_FSCTL(fsp,
2033 ctx,
2034 function,
2035 req->flags2,
2036 (uint8_t *)pdata,
2037 data_count,
2038 (uint8_t **)&out_data,
2039 max_data_count,
2040 &out_data_len);
2041 if (!NT_STATUS_IS_OK(status)) {
2042 reply_nterror(req, status);
2043 } else {
2044 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, out_data, out_data_len);
2045 }
2046 }
2047
2048
2049 #ifdef HAVE_SYS_QUOTAS
2050 /****************************************************************************
2051 Reply to get user quota
2052 ****************************************************************************/
2053
2054 static void call_nt_transact_get_user_quota(connection_struct *conn,
2055 struct smb_request *req,
2056 uint16_t **ppsetup,
2057 uint32_t setup_count,
2058 char **ppparams,
2059 uint32_t parameter_count,
2060 char **ppdata,
2061 uint32_t data_count,
2062 uint32_t max_data_count)
2063 {
2064 const struct loadparm_substitution *lp_sub =
2065 loadparm_s3_global_substitution();
2066 NTSTATUS nt_status = NT_STATUS_OK;
2067 char *params = *ppparams;
2068 char *pdata = *ppdata;
2069 int data_len = 0;
2070 int param_len = 0;
2071 files_struct *fsp = NULL;
2072 DATA_BLOB blob = data_blob_null;
2073 struct nttrans_query_quota_params info = {0};
2074 enum ndr_err_code err;
2075 TALLOC_CTX *tmp_ctx = NULL;
2076 uint32_t resp_len = 0;
2077 uint8_t *resp_data = 0;
2078
2079 tmp_ctx = talloc_init("ntquota_list");
2080 if (!tmp_ctx) {
2081 nt_status = NT_STATUS_NO_MEMORY;
2082 goto error;
2083 }
2084
2085 /* access check */
2086 if (get_current_uid(conn) != sec_initial_uid()) {
2087 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2088 "[%s]\n", lp_servicename(talloc_tos(), lp_sub, SNUM(conn)),
2089 conn->session_info->unix_info->unix_name));
2090 nt_status = NT_STATUS_ACCESS_DENIED;
2091 goto error;
2092 }
2093
2094 blob.data = (uint8_t*)params;
2095 blob.length = parameter_count;
2096
2097 err = ndr_pull_struct_blob(&blob, tmp_ctx, &info,
2098 (ndr_pull_flags_fn_t)ndr_pull_nttrans_query_quota_params);
2099
2100 if (!NDR_ERR_CODE_IS_SUCCESS(err)) {
2101 DEBUG(0,("TRANSACT_GET_USER_QUOTA: failed to pull "
2102 "query_quota_params."));
2103 nt_status = NT_STATUS_INVALID_PARAMETER;
2104 goto error;
2105 }
2106 DBG_DEBUG("info.return_single_entry = %u, info.restart_scan = %u, "
2107 "info.sid_list_length = %u, info.start_sid_length = %u, "
2108 "info.start_sid_offset = %u\n",
2109 (unsigned int)info.return_single_entry,
2110 (unsigned int)info.restart_scan,
2111 (unsigned int)info.sid_list_length,
2112 (unsigned int)info.start_sid_length,
2113 (unsigned int)info.start_sid_offset);
2114
2115 /* set blob to point at data for further parsing */
2116 blob.data = (uint8_t*)pdata;
2117 blob.length = data_count;
2118 /*
2119 * Although MS-SMB ref is ambiguous here, a microsoft client will
2120 * only ever send a start sid (as part of a list) with
2121 * sid_list_length & start_sid_offset both set to the actual list
2122 * length. Note: Only a single result is returned in this case
2123 * In the case where either start_sid_offset or start_sid_length
2124 * are set alone or if both set (but have different values) then
2125 * it seems windows will return a number of entries from the start
2126 * of the list of users with quotas set. This behaviour is undocumented
2127 * and windows clients do not send messages of that type. As such we
2128 * currently will reject these requests.
2129 */
2130 if (info.start_sid_length
2131 || (info.sid_list_length != info.start_sid_offset)) {
2132 DBG_ERR("TRANSACT_GET_USER_QUOTA: unsupported single or "
2133 "compound sid format\n");
2134 nt_status = NT_STATUS_INVALID_PARAMETER;
2135 goto error;
2136 }
2137
2138 /* maybe we can check the quota_fnum */
2139 fsp = file_fsp(req, info.fid);
2140 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2141 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2142 nt_status = NT_STATUS_INVALID_HANDLE;
2143 goto error;
2144 }
2145 nt_status = smbd_do_query_getinfo_quota(tmp_ctx,
2146 fsp,
2147 info.restart_scan,
2148 info.return_single_entry,
2149 info.sid_list_length,
2150 &blob,
2151 max_data_count,
2152 &resp_data,
2153 &resp_len);
2154 if (!NT_STATUS_IS_OK(nt_status)) {
2155 if (!NT_STATUS_EQUAL(nt_status, NT_STATUS_NO_MORE_ENTRIES)) {
2156 goto error;
2157 }
2158 nt_status = NT_STATUS_OK;
2159 }
2160
2161 param_len = 4;
2162 params = nttrans_realloc(ppparams, param_len);
2163 if(params == NULL) {
2164 nt_status = NT_STATUS_NO_MEMORY;
2165 goto error;
2166 }
2167
2168 data_len = resp_len;
2169 SIVAL(params, 0, data_len);
2170 pdata = nttrans_realloc(ppdata, data_len);
2171 memcpy(pdata, resp_data, data_len);
2172
2173 TALLOC_FREE(tmp_ctx);
2174 send_nt_replies(conn, req, nt_status, params, param_len,
2175 pdata, data_len);
2176 return;
2177 error:
2178 TALLOC_FREE(tmp_ctx);
2179 reply_nterror(req, nt_status);
2180 }
2181
2182 /****************************************************************************
2183 Reply to set user quota
2184 ****************************************************************************/
2185
2186 static void call_nt_transact_set_user_quota(connection_struct *conn,
2187 struct smb_request *req,
2188 uint16_t **ppsetup,
2189 uint32_t setup_count,
2190 char **ppparams,
2191 uint32_t parameter_count,
2192 char **ppdata,
2193 uint32_t data_count,
2194 uint32_t max_data_count)
2195 {
2196 const struct loadparm_substitution *lp_sub =
2197 loadparm_s3_global_substitution();
2198 char *params = *ppparams;
2199 char *pdata = *ppdata;
2200 int data_len=0,param_len=0;
2201 SMB_NTQUOTA_STRUCT qt;
2202 struct file_quota_information info = {0};
2203 enum ndr_err_code err;
2204 struct dom_sid sid;
2205 DATA_BLOB inblob;
2206 files_struct *fsp = NULL;
2207 TALLOC_CTX *ctx = NULL;
2208 NTSTATUS status = NT_STATUS_OK;
2209 ZERO_STRUCT(qt);
2210
2211 /* access check */
2212 if (get_current_uid(conn) != sec_initial_uid()) {
2213 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2214 "[%s]\n", lp_servicename(talloc_tos(), lp_sub, SNUM(conn)),
2215 conn->session_info->unix_info->unix_name));
2216 status = NT_STATUS_ACCESS_DENIED;
2217 goto error;
2218 }
2219
2220 /*
2221 * Ensure minimum number of parameters sent.
2222 */
2223
2224 if (parameter_count < 2) {
2225 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2226 status = NT_STATUS_INVALID_PARAMETER;
2227 goto error;
2228 }
2229
2230 /* maybe we can check the quota_fnum */
2231 fsp = file_fsp(req, SVAL(params,0));
2232 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2233 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2234 status = NT_STATUS_INVALID_HANDLE;
2235 goto error;
2236 }
2237
2238 ctx = talloc_init("set_user_quota");
2239 if (!ctx) {
2240 status = NT_STATUS_NO_MEMORY;
2241 goto error;
2242 }
2243 inblob.data = (uint8_t*)pdata;
2244 inblob.length = data_count;
2245
2246 err = ndr_pull_struct_blob(
2247 &inblob,
2248 ctx,
2249 &info,
2250 (ndr_pull_flags_fn_t)ndr_pull_file_quota_information);
2251
2252 if (!NDR_ERR_CODE_IS_SUCCESS(err)) {
2253 DEBUG(0,("TRANSACT_SET_USER_QUOTA: failed to pull "
2254 "file_quota_information\n"));
2255 status = NT_STATUS_INVALID_PARAMETER;
2256 goto error;
2257 }
2258 qt.usedspace = info.quota_used;
2259
2260 qt.softlim = info.quota_threshold;
2261
2262 qt.hardlim = info.quota_limit;
2263
2264 sid = info.sid;
2265
2266 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2267 status = NT_STATUS_INTERNAL_ERROR;
2268 goto error;
2269 }
2270
2271 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2272 pdata, data_len);
2273 TALLOC_FREE(ctx);
2274 return;
2275 error:
2276 TALLOC_FREE(ctx);
2277 reply_nterror(req, status);
2278 }
2279 #endif /* HAVE_SYS_QUOTAS */
2280
2281 static void handle_nttrans(connection_struct *conn,
2282 struct trans_state *state,
2283 struct smb_request *req)
2284 {
2285 struct smbXsrv_connection *xconn = req->xconn;
2286
2287 if (xconn->protocol >= PROTOCOL_NT1) {
2288 req->flags2 |= 0x40; /* IS_LONG_NAME */
2289 SSVAL(discard_const_p(uint8_t, req->inbuf),smb_flg2,req->flags2);
2290 }
2291
2292
2293 /* Now we must call the relevant NT_TRANS function */
2294 switch(state->call) {
2295 case NT_TRANSACT_CREATE:
2296 {
2297 START_PROFILE(NT_transact_create);
2298 call_nt_transact_create(
2299 conn, req,
2300 &state->setup, state->setup_count,
2301 &state->param, state->total_param,
2302 &state->data, state->total_data,
2303 state->max_data_return);
2304 END_PROFILE(NT_transact_create);
2305 break;
2306 }
2307
2308 case NT_TRANSACT_IOCTL:
2309 {
2310 START_PROFILE(NT_transact_ioctl);
2311 call_nt_transact_ioctl(
2312 conn, req,
2313 &state->setup, state->setup_count,
2314 &state->param, state->total_param,
2315 &state->data, state->total_data,
2316 state->max_data_return);
2317 END_PROFILE(NT_transact_ioctl);
2318 break;
2319 }
2320
2321 case NT_TRANSACT_SET_SECURITY_DESC:
2322 {
2323 START_PROFILE(NT_transact_set_security_desc);
2324 call_nt_transact_set_security_desc(
2325 conn, req,
2326 &state->setup, state->setup_count,
2327 &state->param, state->total_param,
2328 &state->data, state->total_data,
2329 state->max_data_return);
2330 END_PROFILE(NT_transact_set_security_desc);
2331 break;
2332 }
2333
2334 case NT_TRANSACT_NOTIFY_CHANGE:
2335 {
2336 START_PROFILE(NT_transact_notify_change);
2337 call_nt_transact_notify_change(
2338 conn, req,
2339 &state->setup, state->setup_count,
2340 &state->param, state->total_param,
2341 &state->data, state->total_data,
2342 state->max_data_return,
2343 state->max_param_return);
2344 END_PROFILE(NT_transact_notify_change);
2345 break;
2346 }
2347
2348 case NT_TRANSACT_RENAME:
2349 {
2350 START_PROFILE(NT_transact_rename);
2351 call_nt_transact_rename(
2352 conn, req,
2353 &state->setup, state->setup_count,
2354 &state->param, state->total_param,
2355 &state->data, state->total_data,
2356 state->max_data_return);
2357 END_PROFILE(NT_transact_rename);
2358 break;
2359 }
2360
2361 case NT_TRANSACT_QUERY_SECURITY_DESC:
2362 {
2363 START_PROFILE(NT_transact_query_security_desc);
2364 call_nt_transact_query_security_desc(
2365 conn, req,
2366 &state->setup, state->setup_count,
2367 &state->param, state->total_param,
2368 &state->data, state->total_data,
2369 state->max_data_return);
2370 END_PROFILE(NT_transact_query_security_desc);
2371 break;
2372 }
2373
2374 #ifdef HAVE_SYS_QUOTAS
2375 case NT_TRANSACT_GET_USER_QUOTA:
2376 {
2377 START_PROFILE(NT_transact_get_user_quota);
2378 call_nt_transact_get_user_quota(
2379 conn, req,
2380 &state->setup, state->setup_count,
2381 &state->param, state->total_param,
2382 &state->data, state->total_data,
2383 state->max_data_return);
2384 END_PROFILE(NT_transact_get_user_quota);
2385 break;
2386 }
2387
2388 case NT_TRANSACT_SET_USER_QUOTA:
2389 {
2390 START_PROFILE(NT_transact_set_user_quota);
2391 call_nt_transact_set_user_quota(
2392 conn, req,
2393 &state->setup, state->setup_count,
2394 &state->param, state->total_param,
2395 &state->data, state->total_data,
2396 state->max_data_return);
2397 END_PROFILE(NT_transact_set_user_quota);
2398 break;
2399 }
2400 #endif /* HAVE_SYS_QUOTAS */
2401
2402 default:
2403 /* Error in request */
2404 DEBUG(0,("handle_nttrans: Unknown request %d in "
2405 "nttrans call\n", state->call));
2406 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2407 return;
2408 }
2409 return;
2410 }
2411
2412 /****************************************************************************
2413 Reply to a SMBNTtrans.
2414 ****************************************************************************/
2415
2416 void reply_nttrans(struct smb_request *req)
2417 {
2418 connection_struct *conn = req->conn;
2419 uint32_t pscnt;
2420 uint32_t psoff;
2421 uint32_t dscnt;
2422 uint32_t dsoff;
2423 uint16_t function_code;
2424 NTSTATUS result;
2425 struct trans_state *state;
2426
2427 START_PROFILE(SMBnttrans);
2428
2429 if (req->wct < 19) {
2430 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2431 END_PROFILE(SMBnttrans);
2432 return;
2433 }
2434
2435 pscnt = IVAL(req->vwv+9, 1);
2436 psoff = IVAL(req->vwv+11, 1);
2437 dscnt = IVAL(req->vwv+13, 1);
2438 dsoff = IVAL(req->vwv+15, 1);
2439 function_code = SVAL(req->vwv+18, 0);
2440
2441 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2442 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2443 END_PROFILE(SMBnttrans);
2444 return;
2445 }
2446
2447 result = allow_new_trans(conn->pending_trans, req->mid);
2448 if (!NT_STATUS_IS_OK(result)) {
2449 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2450 reply_nterror(req, result);
2451 END_PROFILE(SMBnttrans);
2452 return;
2453 }
2454
2455 if ((state = talloc(conn, struct trans_state)) == NULL) {
2456 reply_nterror(req, NT_STATUS_NO_MEMORY);
2457 END_PROFILE(SMBnttrans);
2458 return;
2459 }
2460
2461 state->cmd = SMBnttrans;
2462
2463 state->mid = req->mid;
2464 state->vuid = req->vuid;
2465 state->total_data = IVAL(req->vwv+3, 1);
2466 state->data = NULL;
2467 state->total_param = IVAL(req->vwv+1, 1);
2468 state->param = NULL;
2469 state->max_data_return = IVAL(req->vwv+7, 1);
2470 state->max_param_return = IVAL(req->vwv+5, 1);
2471
2472 /* setup count is in *words* */
2473 state->setup_count = 2*CVAL(req->vwv+17, 1);
2474 state->setup = NULL;
2475 state->call = function_code;
2476
2477 DEBUG(10, ("num_setup=%u, "
2478 "param_total=%u, this_param=%u, max_param=%u, "
2479 "data_total=%u, this_data=%u, max_data=%u, "
2480 "param_offset=%u, data_offset=%u\n",
2481 (unsigned)state->setup_count,
2482 (unsigned)state->total_param, (unsigned)pscnt,
2483 (unsigned)state->max_param_return,
2484 (unsigned)state->total_data, (unsigned)dscnt,
2485 (unsigned)state->max_data_return,
2486 (unsigned)psoff, (unsigned)dsoff));
2487
2488 /*
2489 * All nttrans messages we handle have smb_wct == 19 +
2490 * state->setup_count. Ensure this is so as a sanity check.
2491 */
2492
2493 if(req->wct != 19 + (state->setup_count/2)) {
2494 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2495 req->wct, 19 + (state->setup_count/2)));
2496 goto bad_param;
2497 }
2498
2499 /* Don't allow more than 128mb for each value. */
2500 if ((state->total_data > (1024*1024*128)) ||
2501 (state->total_param > (1024*1024*128))) {
2502 reply_nterror(req, NT_STATUS_NO_MEMORY);
2503 END_PROFILE(SMBnttrans);
2504 return;
2505 }
2506
2507 if ((dscnt > state->total_data) || (pscnt > state->total_param))
2508 goto bad_param;
2509
2510 if (state->total_data) {
2511
2512 if (smb_buffer_oob(state->total_data, 0, dscnt)
2513 || smb_buffer_oob(smb_len(req->inbuf), dsoff, dscnt)) {
2514 goto bad_param;
2515 }
2516
2517 /* Can't use talloc here, the core routines do realloc on the
2518 * params and data. */
2519 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2520 DEBUG(0,("reply_nttrans: data malloc fail for %u "
2521 "bytes !\n", (unsigned int)state->total_data));
2522 TALLOC_FREE(state);
2523 reply_nterror(req, NT_STATUS_NO_MEMORY);
2524 END_PROFILE(SMBnttrans);
2525 return;
2526 }
2527
2528 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2529 }
2530
2531 if (state->total_param) {
2532
2533 if (smb_buffer_oob(state->total_param, 0, pscnt)
2534 || smb_buffer_oob(smb_len(req->inbuf), psoff, pscnt)) {
2535 goto bad_param;
2536 }
2537
2538 /* Can't use talloc here, the core routines do realloc on the
2539 * params and data. */
2540 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2541 DEBUG(0,("reply_nttrans: param malloc fail for %u "
2542 "bytes !\n", (unsigned int)state->total_param));
2543 SAFE_FREE(state->data);
2544 TALLOC_FREE(state);
2545 reply_nterror(req, NT_STATUS_NO_MEMORY);
2546 END_PROFILE(SMBnttrans);
2547 return;
2548 }
2549
2550 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2551 }
2552
2553 state->received_data = dscnt;
2554 state->received_param = pscnt;
2555
2556 if(state->setup_count > 0) {
2557 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2558 state->setup_count));
2559
2560 /*
2561 * No overflow possible here, state->setup_count is an
2562 * unsigned int, being filled by a single byte from
2563 * CVAL(req->vwv+13, 0) above. The cast in the comparison
2564 * below is not necessary, it's here to clarify things. The
2565 * validity of req->vwv and req->wct has been checked in
2566 * init_smb1_request already.
2567 */
2568 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
2569 goto bad_param;
2570 }
2571
2572 state->setup = (uint16_t *)TALLOC(state, state->setup_count);
2573 if (state->setup == NULL) {
2574 DEBUG(0,("reply_nttrans : Out of memory\n"));
2575 SAFE_FREE(state->data);
2576 SAFE_FREE(state->param);
2577 TALLOC_FREE(state);
2578 reply_nterror(req, NT_STATUS_NO_MEMORY);
2579 END_PROFILE(SMBnttrans);
2580 return;
2581 }
2582
2583 memcpy(state->setup, req->vwv+19, state->setup_count);
2584 dump_data(10, (uint8_t *)state->setup, state->setup_count);
2585 }
2586
2587 if ((state->received_data == state->total_data) &&
2588 (state->received_param == state->total_param)) {
2589 handle_nttrans(conn, state, req);
2590 SAFE_FREE(state->param);
2591 SAFE_FREE(state->data);
2592 TALLOC_FREE(state);
2593 END_PROFILE(SMBnttrans);
2594 return;
2595 }
2596
2597 DLIST_ADD(conn->pending_trans, state);
2598
2599 /* We need to send an interim response then receive the rest
2600 of the parameter/data bytes */
2601 reply_smb1_outbuf(req, 0, 0);
2602 show_msg((char *)req->outbuf);
2603 END_PROFILE(SMBnttrans);
2604 return;
2605
2606 bad_param:
2607
2608 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2609 SAFE_FREE(state->data);
2610 SAFE_FREE(state->param);
2611 TALLOC_FREE(state);
2612 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2613 END_PROFILE(SMBnttrans);
2614 return;
2615 }
2616
2617 /****************************************************************************
2618 Reply to a SMBnttranss
2619 ****************************************************************************/
2620
2621 void reply_nttranss(struct smb_request *req)
2622 {
2623 connection_struct *conn = req->conn;
2624 uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
2625 struct trans_state *state;
2626
2627 START_PROFILE(SMBnttranss);
2628
2629 show_msg((const char *)req->inbuf);
2630
2631 /* Windows clients expect all replies to
2632 an NT transact secondary (SMBnttranss 0xA1)
2633 to have a command code of NT transact
2634 (SMBnttrans 0xA0). See bug #8989 for details. */
2635 req->cmd = SMBnttrans;
2636
2637 if (req->wct < 18) {
2638 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2639 END_PROFILE(SMBnttranss);
2640 return;
2641 }
2642
2643 for (state = conn->pending_trans; state != NULL;
2644 state = state->next) {
2645 if (state->mid == req->mid) {
2646 break;
2647 }
2648 }
2649
2650 if ((state == NULL) || (state->cmd != SMBnttrans)) {
2651 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2652 END_PROFILE(SMBnttranss);
2653 return;
2654 }
2655
2656 /* Revise state->total_param and state->total_data in case they have
2657 changed downwards */
2658 if (IVAL(req->vwv+1, 1) < state->total_param) {
2659 state->total_param = IVAL(req->vwv+1, 1);
2660 }
2661 if (IVAL(req->vwv+3, 1) < state->total_data) {
2662 state->total_data = IVAL(req->vwv+3, 1);
2663 }
2664
2665 pcnt = IVAL(req->vwv+5, 1);
2666 poff = IVAL(req->vwv+7, 1);
2667 pdisp = IVAL(req->vwv+9, 1);
2668
2669 dcnt = IVAL(req->vwv+11, 1);
2670 doff = IVAL(req->vwv+13, 1);
2671 ddisp = IVAL(req->vwv+15, 1);
2672
2673 state->received_param += pcnt;
2674 state->received_data += dcnt;
2675
2676 if ((state->received_data > state->total_data) ||
2677 (state->received_param > state->total_param))
2678 goto bad_param;
2679
2680 if (pcnt) {
2681 if (smb_buffer_oob(state->total_param, pdisp, pcnt)
2682 || smb_buffer_oob(smb_len(req->inbuf), poff, pcnt)) {
2683 goto bad_param;
2684 }
2685 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
2686 }
2687
2688 if (dcnt) {
2689 if (smb_buffer_oob(state->total_data, ddisp, dcnt)
2690 || smb_buffer_oob(smb_len(req->inbuf), doff, dcnt)) {
2691 goto bad_param;
2692 }
2693 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
2694 }
2695
2696 if ((state->received_param < state->total_param) ||
2697 (state->received_data < state->total_data)) {
2698 END_PROFILE(SMBnttranss);
2699 return;
2700 }
2701
2702 handle_nttrans(conn, state, req);
2703
2704 DLIST_REMOVE(conn->pending_trans, state);
2705 SAFE_FREE(state->data);
2706 SAFE_FREE(state->param);
2707 TALLOC_FREE(state);
2708 END_PROFILE(SMBnttranss);
2709 return;
2710
2711 bad_param:
2712
2713 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
2714 DLIST_REMOVE(conn->pending_trans, state);
2715 SAFE_FREE(state->data);
2716 SAFE_FREE(state->param);
2717 TALLOC_FREE(state);
2718 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2719 END_PROFILE(SMBnttranss);
2720 return;
2721 }
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