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Canonicalize incoming and outgoing ACLs.
[Samba/vl.git] / source3 / smbd / nttrans.c
blob017703ee9752eec80a574605fd3f5053021f660b
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 "smbd/globals.h"
23 #include "fake_file.h"
24 #include "../librpc/gen_ndr/ndr_security.h"
25
26 extern const struct generic_mapping file_generic_mapping;
27
28 static char *nttrans_realloc(char **ptr, size_t size)
29 {
30 if (ptr==NULL) {
31 smb_panic("nttrans_realloc() called with NULL ptr");
32 }
33
34 *ptr = (char *)SMB_REALLOC(*ptr, size);
35 if(*ptr == NULL) {
36 return NULL;
37 }
38 memset(*ptr,'\0',size);
39 return *ptr;
40 }
41
42 /****************************************************************************
43 Send the required number of replies back.
44 We assume all fields other than the data fields are
45 set correctly for the type of call.
46 HACK ! Always assumes smb_setup field is zero.
47 ****************************************************************************/
48
49 void send_nt_replies(connection_struct *conn,
50 struct smb_request *req, NTSTATUS nt_error,
51 char *params, int paramsize,
52 char *pdata, int datasize)
53 {
54 int data_to_send = datasize;
55 int params_to_send = paramsize;
56 int useable_space;
57 char *pp = params;
58 char *pd = pdata;
59 int params_sent_thistime, data_sent_thistime, total_sent_thistime;
60 int alignment_offset = 3;
61 int data_alignment_offset = 0;
62 struct smbd_server_connection *sconn = req->sconn;
63 int max_send = sconn->smb1.sessions.max_send;
64
65 /*
66 * If there genuinely are no parameters or data to send just send
67 * the empty packet.
68 */
69
70 if(params_to_send == 0 && data_to_send == 0) {
71 reply_outbuf(req, 18, 0);
72 if (NT_STATUS_V(nt_error)) {
73 error_packet_set((char *)req->outbuf,
74 0, 0, nt_error,
75 __LINE__,__FILE__);
76 }
77 show_msg((char *)req->outbuf);
78 if (!srv_send_smb(sconn,
79 (char *)req->outbuf,
80 true, req->seqnum+1,
81 IS_CONN_ENCRYPTED(conn),
82 &req->pcd)) {
83 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
84 }
85 TALLOC_FREE(req->outbuf);
86 return;
87 }
88
89 /*
90 * When sending params and data ensure that both are nicely aligned.
91 * Only do this alignment when there is also data to send - else
92 * can cause NT redirector problems.
93 */
94
95 if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
96 data_alignment_offset = 4 - (params_to_send % 4);
97 }
98
99 /*
100 * Space is bufsize minus Netbios over TCP header minus SMB header.
101 * The alignment_offset is to align the param bytes on a four byte
102 * boundary (2 bytes for data len, one byte pad).
103 * NT needs this to work correctly.
104 */
105
106 useable_space = max_send - (smb_size
107 + 2 * 18 /* wct */
108 + alignment_offset
109 + data_alignment_offset);
110
111 if (useable_space < 0) {
112 char *msg = talloc_asprintf(
113 talloc_tos(),
114 "send_nt_replies failed sanity useable_space = %d!!!",
115 useable_space);
116 DEBUG(0, ("%s\n", msg));
117 exit_server_cleanly(msg);
118 }
119
120 while (params_to_send || data_to_send) {
121
122 /*
123 * Calculate whether we will totally or partially fill this packet.
124 */
125
126 total_sent_thistime = params_to_send + data_to_send;
127
128 /*
129 * We can never send more than useable_space.
130 */
131
132 total_sent_thistime = MIN(total_sent_thistime, useable_space);
133
134 reply_outbuf(req, 18,
135 total_sent_thistime + alignment_offset
136 + data_alignment_offset);
137
138 /*
139 * We might have had SMBnttranss in req->inbuf, fix that.
140 */
141 SCVAL(req->outbuf, smb_com, SMBnttrans);
142
143 /*
144 * Set total params and data to be sent.
145 */
146
147 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
148 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
149
150 /*
151 * Calculate how many parameters and data we can fit into
152 * this packet. Parameters get precedence.
153 */
154
155 params_sent_thistime = MIN(params_to_send,useable_space);
156 data_sent_thistime = useable_space - params_sent_thistime;
157 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
158
159 SIVAL(req->outbuf, smb_ntr_ParameterCount,
160 params_sent_thistime);
161
162 if(params_sent_thistime == 0) {
163 SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
164 SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
165 } else {
166 /*
167 * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
168 * parameter bytes, however the first 4 bytes of outbuf are
169 * the Netbios over TCP header. Thus use smb_base() to subtract
170 * them from the calculation.
171 */
172
173 SIVAL(req->outbuf,smb_ntr_ParameterOffset,
174 ((smb_buf(req->outbuf)+alignment_offset)
175 - smb_base(req->outbuf)));
176 /*
177 * Absolute displacement of param bytes sent in this packet.
178 */
179
180 SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
181 pp - params);
182 }
183
184 /*
185 * Deal with the data portion.
186 */
187
188 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
189
190 if(data_sent_thistime == 0) {
191 SIVAL(req->outbuf,smb_ntr_DataOffset,0);
192 SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
193 } else {
194 /*
195 * The offset of the data bytes is the offset of the
196 * parameter bytes plus the number of parameters being sent this time.
197 */
198
199 SIVAL(req->outbuf, smb_ntr_DataOffset,
200 ((smb_buf(req->outbuf)+alignment_offset) -
201 smb_base(req->outbuf))
202 + params_sent_thistime + data_alignment_offset);
203 SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
204 }
205
206 /*
207 * Copy the param bytes into the packet.
208 */
209
210 if(params_sent_thistime) {
211 if (alignment_offset != 0) {
212 memset(smb_buf(req->outbuf), 0,
213 alignment_offset);
214 }
215 memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
216 params_sent_thistime);
217 }
218
219 /*
220 * Copy in the data bytes
221 */
222
223 if(data_sent_thistime) {
224 if (data_alignment_offset != 0) {
225 memset((smb_buf(req->outbuf)+alignment_offset+
226 params_sent_thistime), 0,
227 data_alignment_offset);
228 }
229 memcpy(smb_buf(req->outbuf)+alignment_offset
230 +params_sent_thistime+data_alignment_offset,
231 pd,data_sent_thistime);
232 }
233
234 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
235 params_sent_thistime, data_sent_thistime, useable_space));
236 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
237 params_to_send, data_to_send, paramsize, datasize));
238
239 if (NT_STATUS_V(nt_error)) {
240 error_packet_set((char *)req->outbuf,
241 0, 0, nt_error,
242 __LINE__,__FILE__);
243 }
244
245 /* Send the packet */
246 show_msg((char *)req->outbuf);
247 if (!srv_send_smb(sconn,
248 (char *)req->outbuf,
249 true, req->seqnum+1,
250 IS_CONN_ENCRYPTED(conn),
251 &req->pcd)) {
252 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
253 }
254
255 TALLOC_FREE(req->outbuf);
256
257 pp += params_sent_thistime;
258 pd += data_sent_thistime;
259
260 params_to_send -= params_sent_thistime;
261 data_to_send -= data_sent_thistime;
262
263 /*
264 * Sanity check
265 */
266
267 if(params_to_send < 0 || data_to_send < 0) {
268 DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
269 params_to_send, data_to_send));
270 exit_server_cleanly("send_nt_replies: internal error");
271 }
272 }
273 }
274
275 /****************************************************************************
276 Reply to an NT create and X call on a pipe
277 ****************************************************************************/
278
279 static void nt_open_pipe(char *fname, connection_struct *conn,
280 struct smb_request *req, int *ppnum)
281 {
282 files_struct *fsp;
283 NTSTATUS status;
284
285 DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
286
287 /* Strip \\ off the name. */
288 fname++;
289
290 status = open_np_file(req, fname, &fsp);
291 if (!NT_STATUS_IS_OK(status)) {
292 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
293 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
294 ERRDOS, ERRbadpipe);
295 return;
296 }
297 reply_nterror(req, status);
298 return;
299 }
300
301 *ppnum = fsp->fnum;
302 return;
303 }
304
305 /****************************************************************************
306 Reply to an NT create and X call for pipes.
307 ****************************************************************************/
308
309 static void do_ntcreate_pipe_open(connection_struct *conn,
310 struct smb_request *req)
311 {
312 char *fname = NULL;
313 int pnum = -1;
314 char *p = NULL;
315 uint32 flags = IVAL(req->vwv+3, 1);
316 TALLOC_CTX *ctx = talloc_tos();
317
318 srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
319
320 if (!fname) {
321 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
322 ERRDOS, ERRbadpipe);
323 return;
324 }
325 nt_open_pipe(fname, conn, req, &pnum);
326
327 if (req->outbuf) {
328 /* error reply */
329 return;
330 }
331
332 /*
333 * Deal with pipe return.
334 */
335
336 if (flags & EXTENDED_RESPONSE_REQUIRED) {
337 /* This is very strange. We
338 * return 50 words, but only set
339 * the wcnt to 42 ? It's definately
340 * what happens on the wire....
341 */
342 reply_outbuf(req, 50, 0);
343 SCVAL(req->outbuf,smb_wct,42);
344 } else {
345 reply_outbuf(req, 34, 0);
346 }
347
348 p = (char *)req->outbuf + smb_vwv2;
349 p++;
350 SSVAL(p,0,pnum);
351 p += 2;
352 SIVAL(p,0,FILE_WAS_OPENED);
353 p += 4;
354 p += 32;
355 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
356 p += 20;
357 /* File type. */
358 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
359 /* Device state. */
360 SSVAL(p,2, 0x5FF); /* ? */
361 p += 4;
362
363 if (flags & EXTENDED_RESPONSE_REQUIRED) {
364 p += 25;
365 SIVAL(p,0,FILE_GENERIC_ALL);
366 /*
367 * For pipes W2K3 seems to return
368 * 0x12019B next.
369 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
370 */
371 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
372 }
373
374 DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
375
376 chain_reply(req);
377 }
378
379 struct case_semantics_state {
380 connection_struct *conn;
381 bool case_sensitive;
382 bool case_preserve;
383 bool short_case_preserve;
384 };
385
386 /****************************************************************************
387 Restore case semantics.
388 ****************************************************************************/
389
390 static int restore_case_semantics(struct case_semantics_state *state)
391 {
392 state->conn->case_sensitive = state->case_sensitive;
393 state->conn->case_preserve = state->case_preserve;
394 state->conn->short_case_preserve = state->short_case_preserve;
395 return 0;
396 }
397
398 /****************************************************************************
399 Save case semantics.
400 ****************************************************************************/
401
402 static struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx,
403 connection_struct *conn)
404 {
405 struct case_semantics_state *result;
406
407 if (!(result = talloc(mem_ctx, struct case_semantics_state))) {
408 return NULL;
409 }
410
411 result->conn = conn;
412 result->case_sensitive = conn->case_sensitive;
413 result->case_preserve = conn->case_preserve;
414 result->short_case_preserve = conn->short_case_preserve;
415
416 /* Set to POSIX. */
417 conn->case_sensitive = True;
418 conn->case_preserve = True;
419 conn->short_case_preserve = True;
420
421 talloc_set_destructor(result, restore_case_semantics);
422
423 return result;
424 }
425
426 /****************************************************************************
427 Reply to an NT create and X call.
428 ****************************************************************************/
429
430 void reply_ntcreate_and_X(struct smb_request *req)
431 {
432 connection_struct *conn = req->conn;
433 struct smb_filename *smb_fname = NULL;
434 char *fname = NULL;
435 uint32 flags;
436 uint32 access_mask;
437 uint32 file_attributes;
438 uint32 share_access;
439 uint32 create_disposition;
440 uint32 create_options;
441 uint16 root_dir_fid;
442 uint64_t allocation_size;
443 /* Breakout the oplock request bits so we can set the
444 reply bits separately. */
445 uint32 fattr=0;
446 SMB_OFF_T file_len = 0;
447 int info = 0;
448 files_struct *fsp = NULL;
449 char *p = NULL;
450 struct timespec create_timespec;
451 struct timespec c_timespec;
452 struct timespec a_timespec;
453 struct timespec m_timespec;
454 struct timespec write_time_ts;
455 NTSTATUS status;
456 int oplock_request;
457 uint8_t oplock_granted = NO_OPLOCK_RETURN;
458 struct case_semantics_state *case_state = NULL;
459 TALLOC_CTX *ctx = talloc_tos();
460
461 START_PROFILE(SMBntcreateX);
462
463 if (req->wct < 24) {
464 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
465 goto out;
466 }
467
468 flags = IVAL(req->vwv+3, 1);
469 access_mask = IVAL(req->vwv+7, 1);
470 file_attributes = IVAL(req->vwv+13, 1);
471 share_access = IVAL(req->vwv+15, 1);
472 create_disposition = IVAL(req->vwv+17, 1);
473 create_options = IVAL(req->vwv+19, 1);
474 root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
475
476 allocation_size = (uint64_t)IVAL(req->vwv+9, 1);
477 #ifdef LARGE_SMB_OFF_T
478 allocation_size |= (((uint64_t)IVAL(req->vwv+11, 1)) << 32);
479 #endif
480
481 srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
482 STR_TERMINATE, &status);
483
484 if (!NT_STATUS_IS_OK(status)) {
485 reply_nterror(req, status);
486 goto out;
487 }
488
489 DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
490 "file_attributes = 0x%x, share_access = 0x%x, "
491 "create_disposition = 0x%x create_options = 0x%x "
492 "root_dir_fid = 0x%x, fname = %s\n",
493 (unsigned int)flags,
494 (unsigned int)access_mask,
495 (unsigned int)file_attributes,
496 (unsigned int)share_access,
497 (unsigned int)create_disposition,
498 (unsigned int)create_options,
499 (unsigned int)root_dir_fid,
500 fname));
501
502 /*
503 * we need to remove ignored bits when they come directly from the client
504 * because we reuse some of them for internal stuff
505 */
506 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
507
508 /*
509 * If it's an IPC, use the pipe handler.
510 */
511
512 if (IS_IPC(conn)) {
513 if (lp_nt_pipe_support()) {
514 do_ntcreate_pipe_open(conn, req);
515 goto out;
516 }
517 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
518 goto out;
519 }
520
521 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
522 if (oplock_request) {
523 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
524 ? BATCH_OPLOCK : 0;
525 }
526
527 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
528 case_state = set_posix_case_semantics(ctx, conn);
529 if (!case_state) {
530 reply_nterror(req, NT_STATUS_NO_MEMORY);
531 goto out;
532 }
533 }
534
535 status = filename_convert(ctx,
536 conn,
537 req->flags2 & FLAGS2_DFS_PATHNAMES,
538 fname,
539 0,
540 NULL,
541 &smb_fname);
542
543 TALLOC_FREE(case_state);
544
545 if (!NT_STATUS_IS_OK(status)) {
546 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
547 reply_botherror(req,
548 NT_STATUS_PATH_NOT_COVERED,
549 ERRSRV, ERRbadpath);
550 goto out;
551 }
552 reply_nterror(req, status);
553 goto out;
554 }
555
556 /*
557 * Bug #6898 - clients using Windows opens should
558 * never be able to set this attribute into the
559 * VFS.
560 */
561 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
562
563 status = SMB_VFS_CREATE_FILE(
564 conn, /* conn */
565 req, /* req */
566 root_dir_fid, /* root_dir_fid */
567 smb_fname, /* fname */
568 access_mask, /* access_mask */
569 share_access, /* share_access */
570 create_disposition, /* create_disposition*/
571 create_options, /* create_options */
572 file_attributes, /* file_attributes */
573 oplock_request, /* oplock_request */
574 allocation_size, /* allocation_size */
575 0, /* private_flags */
576 NULL, /* sd */
577 NULL, /* ea_list */
578 &fsp, /* result */
579 &info); /* pinfo */
580
581 if (!NT_STATUS_IS_OK(status)) {
582 if (open_was_deferred(req->mid)) {
583 /* We have re-scheduled this call, no error. */
584 goto out;
585 }
586 reply_openerror(req, status);
587 goto out;
588 }
589
590 /* Ensure we're pointing at the correct stat struct. */
591 TALLOC_FREE(smb_fname);
592 smb_fname = fsp->fsp_name;
593
594 /*
595 * If the caller set the extended oplock request bit
596 * and we granted one (by whatever means) - set the
597 * correct bit for extended oplock reply.
598 */
599
600 if (oplock_request &&
601 (lp_fake_oplocks(SNUM(conn))
602 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
603
604 /*
605 * Exclusive oplock granted
606 */
607
608 if (flags & REQUEST_BATCH_OPLOCK) {
609 oplock_granted = BATCH_OPLOCK_RETURN;
610 } else {
611 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
612 }
613 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
614 oplock_granted = LEVEL_II_OPLOCK_RETURN;
615 } else {
616 oplock_granted = NO_OPLOCK_RETURN;
617 }
618
619 file_len = smb_fname->st.st_ex_size;
620
621 if (flags & EXTENDED_RESPONSE_REQUIRED) {
622 /* This is very strange. We
623 * return 50 words, but only set
624 * the wcnt to 42 ? It's definately
625 * what happens on the wire....
626 */
627 reply_outbuf(req, 50, 0);
628 SCVAL(req->outbuf,smb_wct,42);
629 } else {
630 reply_outbuf(req, 34, 0);
631 }
632
633 p = (char *)req->outbuf + smb_vwv2;
634
635 SCVAL(p, 0, oplock_granted);
636
637 p++;
638 SSVAL(p,0,fsp->fnum);
639 p += 2;
640 if ((create_disposition == FILE_SUPERSEDE)
641 && (info == FILE_WAS_OVERWRITTEN)) {
642 SIVAL(p,0,FILE_WAS_SUPERSEDED);
643 } else {
644 SIVAL(p,0,info);
645 }
646 p += 4;
647
648 fattr = dos_mode(conn, smb_fname);
649 if (fattr == 0) {
650 fattr = FILE_ATTRIBUTE_NORMAL;
651 }
652
653 /* Deal with other possible opens having a modified
654 write time. JRA. */
655 ZERO_STRUCT(write_time_ts);
656 get_file_infos(fsp->file_id, NULL, &write_time_ts);
657 if (!null_timespec(write_time_ts)) {
658 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
659 }
660
661 /* Create time. */
662 create_timespec = get_create_timespec(conn, fsp, smb_fname);
663 a_timespec = smb_fname->st.st_ex_atime;
664 m_timespec = smb_fname->st.st_ex_mtime;
665 c_timespec = get_change_timespec(conn, fsp, smb_fname);
666
667 if (lp_dos_filetime_resolution(SNUM(conn))) {
668 dos_filetime_timespec(&create_timespec);
669 dos_filetime_timespec(&a_timespec);
670 dos_filetime_timespec(&m_timespec);
671 dos_filetime_timespec(&c_timespec);
672 }
673
674 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
675 p += 8;
676 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
677 p += 8;
678 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
679 p += 8;
680 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
681 p += 8;
682 SIVAL(p,0,fattr); /* File Attributes. */
683 p += 4;
684 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
685 p += 8;
686 SOFF_T(p,0,file_len);
687 p += 8;
688 if (flags & EXTENDED_RESPONSE_REQUIRED) {
689 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
690 size_t num_names = 0;
691 unsigned int num_streams;
692 struct stream_struct *streams = NULL;
693
694 /* Do we have any EA's ? */
695 status = get_ea_names_from_file(ctx, conn, fsp,
696 smb_fname->base_name, NULL, &num_names);
697 if (NT_STATUS_IS_OK(status) && num_names) {
698 file_status &= ~NO_EAS;
699 }
700 status = SMB_VFS_STREAMINFO(conn, NULL, smb_fname->base_name, ctx,
701 &num_streams, &streams);
702 /* There is always one stream, ::$DATA. */
703 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
704 file_status &= ~NO_SUBSTREAMS;
705 }
706 TALLOC_FREE(streams);
707 SSVAL(p,2,file_status);
708 }
709 p += 4;
710 SCVAL(p,0,fsp->is_directory ? 1 : 0);
711
712 if (flags & EXTENDED_RESPONSE_REQUIRED) {
713 uint32 perms = 0;
714 p += 25;
715 if (fsp->is_directory ||
716 can_write_to_file(conn, smb_fname)) {
717 perms = FILE_GENERIC_ALL;
718 } else {
719 perms = FILE_GENERIC_READ|FILE_EXECUTE;
720 }
721 SIVAL(p,0,perms);
722 }
723
724 DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
725 fsp->fnum, smb_fname_str_dbg(smb_fname)));
726
727 chain_reply(req);
728 out:
729 END_PROFILE(SMBntcreateX);
730 return;
731 }
732
733 /****************************************************************************
734 Reply to a NT_TRANSACT_CREATE call to open a pipe.
735 ****************************************************************************/
736
737 static void do_nt_transact_create_pipe(connection_struct *conn,
738 struct smb_request *req,
739 uint16 **ppsetup, uint32 setup_count,
740 char **ppparams, uint32 parameter_count,
741 char **ppdata, uint32 data_count)
742 {
743 char *fname = NULL;
744 char *params = *ppparams;
745 int pnum = -1;
746 char *p = NULL;
747 NTSTATUS status;
748 size_t param_len;
749 uint32 flags;
750 TALLOC_CTX *ctx = talloc_tos();
751
752 /*
753 * Ensure minimum number of parameters sent.
754 */
755
756 if(parameter_count < 54) {
757 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
758 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
759 return;
760 }
761
762 flags = IVAL(params,0);
763
764 srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
765 parameter_count-53, STR_TERMINATE,
766 &status);
767 if (!NT_STATUS_IS_OK(status)) {
768 reply_nterror(req, status);
769 return;
770 }
771
772 nt_open_pipe(fname, conn, req, &pnum);
773
774 if (req->outbuf) {
775 /* Error return */
776 return;
777 }
778
779 /* Realloc the size of parameters and data we will return */
780 if (flags & EXTENDED_RESPONSE_REQUIRED) {
781 /* Extended response is 32 more byyes. */
782 param_len = 101;
783 } else {
784 param_len = 69;
785 }
786 params = nttrans_realloc(ppparams, param_len);
787 if(params == NULL) {
788 reply_nterror(req, NT_STATUS_NO_MEMORY);
789 return;
790 }
791
792 p = params;
793 SCVAL(p,0,NO_OPLOCK_RETURN);
794
795 p += 2;
796 SSVAL(p,0,pnum);
797 p += 2;
798 SIVAL(p,0,FILE_WAS_OPENED);
799 p += 8;
800
801 p += 32;
802 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
803 p += 20;
804 /* File type. */
805 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
806 /* Device state. */
807 SSVAL(p,2, 0x5FF); /* ? */
808 p += 4;
809
810 if (flags & EXTENDED_RESPONSE_REQUIRED) {
811 p += 25;
812 SIVAL(p,0,FILE_GENERIC_ALL);
813 /*
814 * For pipes W2K3 seems to return
815 * 0x12019B next.
816 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
817 */
818 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
819 }
820
821 DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
822
823 /* Send the required number of replies */
824 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
825
826 return;
827 }
828
829 /****************************************************************************
830 Internal fn to set security descriptors.
831 ****************************************************************************/
832
833 NTSTATUS set_sd(files_struct *fsp, uint8_t *data, uint32_t sd_len,
834 uint32_t security_info_sent)
835 {
836 struct security_descriptor *psd = NULL;
837 NTSTATUS status;
838
839 if (sd_len == 0) {
840 return NT_STATUS_INVALID_PARAMETER;
841 }
842
843 if (!CAN_WRITE(fsp->conn)) {
844 return NT_STATUS_ACCESS_DENIED;
845 }
846
847 if (!lp_nt_acl_support(SNUM(fsp->conn))) {
848 return NT_STATUS_OK;
849 }
850
851 status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
852
853 if (!NT_STATUS_IS_OK(status)) {
854 return status;
855 }
856
857 if (psd->owner_sid == NULL) {
858 security_info_sent &= ~SECINFO_OWNER;
859 }
860 if (psd->group_sid == NULL) {
861 security_info_sent &= ~SECINFO_GROUP;
862 }
863
864 /* Ensure we have at least one thing set. */
865 if ((security_info_sent & (SECINFO_OWNER|SECINFO_GROUP|SECINFO_DACL|SECINFO_SACL)) == 0) {
866 return NT_STATUS_INVALID_PARAMETER;
867 }
868
869 /* Ensure we have the rights to do this. */
870 if (security_info_sent & SECINFO_OWNER) {
871 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
872 return NT_STATUS_ACCESS_DENIED;
873 }
874 }
875
876 if (security_info_sent & SECINFO_GROUP) {
877 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
878 return NT_STATUS_ACCESS_DENIED;
879 }
880 }
881
882 if (security_info_sent & SECINFO_DACL) {
883 if (!(fsp->access_mask & SEC_STD_WRITE_DAC)) {
884 return NT_STATUS_ACCESS_DENIED;
885 }
886 /* Convert all the generic bits. */
887 if (psd->dacl) {
888 security_acl_map_generic(psd->dacl, &file_generic_mapping);
889 }
890 }
891
892 if (security_info_sent & SECINFO_SACL) {
893 if (!(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
894 return NT_STATUS_ACCESS_DENIED;
895 }
896 /* Convert all the generic bits. */
897 if (psd->sacl) {
898 security_acl_map_generic(psd->sacl, &file_generic_mapping);
899 }
900 }
901
902 if (DEBUGLEVEL >= 10) {
903 DEBUG(10,("set_sd for file %s\n", fsp_str_dbg(fsp)));
904 NDR_PRINT_DEBUG(security_descriptor, psd);
905 }
906
907 status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
908
909 TALLOC_FREE(psd);
910
911 return status;
912 }
913
914 /****************************************************************************
915 Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
916 ****************************************************************************/
917
918 struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
919 {
920 struct ea_list *ea_list_head = NULL;
921 size_t offset = 0;
922
923 if (data_size < 4) {
924 return NULL;
925 }
926
927 while (offset + 4 <= data_size) {
928 size_t next_offset = IVAL(pdata,offset);
929 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
930
931 if (!eal) {
932 return NULL;
933 }
934
935 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
936 if (next_offset == 0) {
937 break;
938 }
939 offset += next_offset;
940 }
941
942 return ea_list_head;
943 }
944
945 /****************************************************************************
946 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
947 ****************************************************************************/
948
949 static void call_nt_transact_create(connection_struct *conn,
950 struct smb_request *req,
951 uint16 **ppsetup, uint32 setup_count,
952 char **ppparams, uint32 parameter_count,
953 char **ppdata, uint32 data_count,
954 uint32 max_data_count)
955 {
956 struct smb_filename *smb_fname = NULL;
957 char *fname = NULL;
958 char *params = *ppparams;
959 char *data = *ppdata;
960 /* Breakout the oplock request bits so we can set the reply bits separately. */
961 uint32 fattr=0;
962 SMB_OFF_T file_len = 0;
963 int info = 0;
964 files_struct *fsp = NULL;
965 char *p = NULL;
966 uint32 flags;
967 uint32 access_mask;
968 uint32 file_attributes;
969 uint32 share_access;
970 uint32 create_disposition;
971 uint32 create_options;
972 uint32 sd_len;
973 struct security_descriptor *sd = NULL;
974 uint32 ea_len;
975 uint16 root_dir_fid;
976 struct timespec create_timespec;
977 struct timespec c_timespec;
978 struct timespec a_timespec;
979 struct timespec m_timespec;
980 struct timespec write_time_ts;
981 struct ea_list *ea_list = NULL;
982 NTSTATUS status;
983 size_t param_len;
984 uint64_t allocation_size;
985 int oplock_request;
986 uint8_t oplock_granted;
987 struct case_semantics_state *case_state = NULL;
988 TALLOC_CTX *ctx = talloc_tos();
989
990 DEBUG(5,("call_nt_transact_create\n"));
991
992 /*
993 * If it's an IPC, use the pipe handler.
994 */
995
996 if (IS_IPC(conn)) {
997 if (lp_nt_pipe_support()) {
998 do_nt_transact_create_pipe(
999 conn, req,
1000 ppsetup, setup_count,
1001 ppparams, parameter_count,
1002 ppdata, data_count);
1003 goto out;
1004 }
1005 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1006 goto out;
1007 }
1008
1009 /*
1010 * Ensure minimum number of parameters sent.
1011 */
1012
1013 if(parameter_count < 54) {
1014 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1015 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1016 goto out;
1017 }
1018
1019 flags = IVAL(params,0);
1020 access_mask = IVAL(params,8);
1021 file_attributes = IVAL(params,20);
1022 share_access = IVAL(params,24);
1023 create_disposition = IVAL(params,28);
1024 create_options = IVAL(params,32);
1025 sd_len = IVAL(params,36);
1026 ea_len = IVAL(params,40);
1027 root_dir_fid = (uint16)IVAL(params,4);
1028 allocation_size = (uint64_t)IVAL(params,12);
1029 #ifdef LARGE_SMB_OFF_T
1030 allocation_size |= (((uint64_t)IVAL(params,16)) << 32);
1031 #endif
1032
1033 /*
1034 * we need to remove ignored bits when they come directly from the client
1035 * because we reuse some of them for internal stuff
1036 */
1037 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
1038
1039 /* Ensure the data_len is correct for the sd and ea values given. */
1040 if ((ea_len + sd_len > data_count)
1041 || (ea_len > data_count) || (sd_len > data_count)
1042 || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
1043 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
1044 "%u, data_count = %u\n", (unsigned int)ea_len,
1045 (unsigned int)sd_len, (unsigned int)data_count));
1046 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1047 goto out;
1048 }
1049
1050 if (sd_len) {
1051 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
1052 sd_len));
1053
1054 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
1055 &sd);
1056 if (!NT_STATUS_IS_OK(status)) {
1057 DEBUG(10, ("call_nt_transact_create: "
1058 "unmarshall_sec_desc failed: %s\n",
1059 nt_errstr(status)));
1060 reply_nterror(req, status);
1061 goto out;
1062 }
1063 }
1064
1065 if (ea_len) {
1066 if (!lp_ea_support(SNUM(conn))) {
1067 DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
1068 "EA's not supported.\n",
1069 (unsigned int)ea_len));
1070 reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
1071 goto out;
1072 }
1073
1074 if (ea_len < 10) {
1075 DEBUG(10,("call_nt_transact_create - ea_len = %u - "
1076 "too small (should be more than 10)\n",
1077 (unsigned int)ea_len ));
1078 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1079 goto out;
1080 }
1081
1082 /* We have already checked that ea_len <= data_count here. */
1083 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
1084 ea_len);
1085 if (ea_list == NULL) {
1086 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1087 goto out;
1088 }
1089 }
1090
1091 srvstr_get_path(ctx, params, req->flags2, &fname,
1092 params+53, parameter_count-53,
1093 STR_TERMINATE, &status);
1094 if (!NT_STATUS_IS_OK(status)) {
1095 reply_nterror(req, status);
1096 goto out;
1097 }
1098
1099 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
1100 case_state = set_posix_case_semantics(ctx, conn);
1101 if (!case_state) {
1102 reply_nterror(req, NT_STATUS_NO_MEMORY);
1103 goto out;
1104 }
1105 }
1106
1107 status = filename_convert(ctx,
1108 conn,
1109 req->flags2 & FLAGS2_DFS_PATHNAMES,
1110 fname,
1111 0,
1112 NULL,
1113 &smb_fname);
1114
1115 TALLOC_FREE(case_state);
1116
1117 if (!NT_STATUS_IS_OK(status)) {
1118 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1119 reply_botherror(req,
1120 NT_STATUS_PATH_NOT_COVERED,
1121 ERRSRV, ERRbadpath);
1122 goto out;
1123 }
1124 reply_nterror(req, status);
1125 goto out;
1126 }
1127
1128 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1129 if (oplock_request) {
1130 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1131 ? BATCH_OPLOCK : 0;
1132 }
1133
1134 /*
1135 * Bug #6898 - clients using Windows opens should
1136 * never be able to set this attribute into the
1137 * VFS.
1138 */
1139 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
1140
1141 status = SMB_VFS_CREATE_FILE(
1142 conn, /* conn */
1143 req, /* req */
1144 root_dir_fid, /* root_dir_fid */
1145 smb_fname, /* fname */
1146 access_mask, /* access_mask */
1147 share_access, /* share_access */
1148 create_disposition, /* create_disposition*/
1149 create_options, /* create_options */
1150 file_attributes, /* file_attributes */
1151 oplock_request, /* oplock_request */
1152 allocation_size, /* allocation_size */
1153 0, /* private_flags */
1154 sd, /* sd */
1155 ea_list, /* ea_list */
1156 &fsp, /* result */
1157 &info); /* pinfo */
1158
1159 if(!NT_STATUS_IS_OK(status)) {
1160 if (open_was_deferred(req->mid)) {
1161 /* We have re-scheduled this call, no error. */
1162 return;
1163 }
1164 reply_openerror(req, status);
1165 goto out;
1166 }
1167
1168 /* Ensure we're pointing at the correct stat struct. */
1169 TALLOC_FREE(smb_fname);
1170 smb_fname = fsp->fsp_name;
1171
1172 /*
1173 * If the caller set the extended oplock request bit
1174 * and we granted one (by whatever means) - set the
1175 * correct bit for extended oplock reply.
1176 */
1177
1178 if (oplock_request &&
1179 (lp_fake_oplocks(SNUM(conn))
1180 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1181
1182 /*
1183 * Exclusive oplock granted
1184 */
1185
1186 if (flags & REQUEST_BATCH_OPLOCK) {
1187 oplock_granted = BATCH_OPLOCK_RETURN;
1188 } else {
1189 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1190 }
1191 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1192 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1193 } else {
1194 oplock_granted = NO_OPLOCK_RETURN;
1195 }
1196
1197 file_len = smb_fname->st.st_ex_size;
1198
1199 /* Realloc the size of parameters and data we will return */
1200 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1201 /* Extended response is 32 more byyes. */
1202 param_len = 101;
1203 } else {
1204 param_len = 69;
1205 }
1206 params = nttrans_realloc(ppparams, param_len);
1207 if(params == NULL) {
1208 reply_nterror(req, NT_STATUS_NO_MEMORY);
1209 goto out;
1210 }
1211
1212 p = params;
1213 SCVAL(p, 0, oplock_granted);
1214
1215 p += 2;
1216 SSVAL(p,0,fsp->fnum);
1217 p += 2;
1218 if ((create_disposition == FILE_SUPERSEDE)
1219 && (info == FILE_WAS_OVERWRITTEN)) {
1220 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1221 } else {
1222 SIVAL(p,0,info);
1223 }
1224 p += 8;
1225
1226 fattr = dos_mode(conn, smb_fname);
1227 if (fattr == 0) {
1228 fattr = FILE_ATTRIBUTE_NORMAL;
1229 }
1230
1231 /* Deal with other possible opens having a modified
1232 write time. JRA. */
1233 ZERO_STRUCT(write_time_ts);
1234 get_file_infos(fsp->file_id, NULL, &write_time_ts);
1235 if (!null_timespec(write_time_ts)) {
1236 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
1237 }
1238
1239 /* Create time. */
1240 create_timespec = get_create_timespec(conn, fsp, smb_fname);
1241 a_timespec = smb_fname->st.st_ex_atime;
1242 m_timespec = smb_fname->st.st_ex_mtime;
1243 c_timespec = get_change_timespec(conn, fsp, smb_fname);
1244
1245 if (lp_dos_filetime_resolution(SNUM(conn))) {
1246 dos_filetime_timespec(&create_timespec);
1247 dos_filetime_timespec(&a_timespec);
1248 dos_filetime_timespec(&m_timespec);
1249 dos_filetime_timespec(&c_timespec);
1250 }
1251
1252 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
1253 p += 8;
1254 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
1255 p += 8;
1256 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
1257 p += 8;
1258 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
1259 p += 8;
1260 SIVAL(p,0,fattr); /* File Attributes. */
1261 p += 4;
1262 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1263 p += 8;
1264 SOFF_T(p,0,file_len);
1265 p += 8;
1266 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1267 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
1268 size_t num_names = 0;
1269 unsigned int num_streams;
1270 struct stream_struct *streams = NULL;
1271
1272 /* Do we have any EA's ? */
1273 status = get_ea_names_from_file(ctx, conn, fsp,
1274 smb_fname->base_name, NULL, &num_names);
1275 if (NT_STATUS_IS_OK(status) && num_names) {
1276 file_status &= ~NO_EAS;
1277 }
1278 status = SMB_VFS_STREAMINFO(conn, NULL, smb_fname->base_name, ctx,
1279 &num_streams, &streams);
1280 /* There is always one stream, ::$DATA. */
1281 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
1282 file_status &= ~NO_SUBSTREAMS;
1283 }
1284 TALLOC_FREE(streams);
1285 SSVAL(p,2,file_status);
1286 }
1287 p += 4;
1288 SCVAL(p,0,fsp->is_directory ? 1 : 0);
1289
1290 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1291 uint32 perms = 0;
1292 p += 25;
1293 if (fsp->is_directory ||
1294 can_write_to_file(conn, smb_fname)) {
1295 perms = FILE_GENERIC_ALL;
1296 } else {
1297 perms = FILE_GENERIC_READ|FILE_EXECUTE;
1298 }
1299 SIVAL(p,0,perms);
1300 }
1301
1302 DEBUG(5,("call_nt_transact_create: open name = %s\n",
1303 smb_fname_str_dbg(smb_fname)));
1304
1305 /* Send the required number of replies */
1306 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1307 out:
1308 return;
1309 }
1310
1311 /****************************************************************************
1312 Reply to a NT CANCEL request.
1313 conn POINTER CAN BE NULL HERE !
1314 ****************************************************************************/
1315
1316 void reply_ntcancel(struct smb_request *req)
1317 {
1318 /*
1319 * Go through and cancel any pending change notifies.
1320 */
1321
1322 START_PROFILE(SMBntcancel);
1323 srv_cancel_sign_response(req->sconn);
1324 remove_pending_change_notify_requests_by_mid(req->sconn, req->mid);
1325 remove_pending_lock_requests_by_mid_smb1(req->sconn, req->mid);
1326
1327 DEBUG(3,("reply_ntcancel: cancel called on mid = %llu.\n",
1328 (unsigned long long)req->mid));
1329
1330 END_PROFILE(SMBntcancel);
1331 return;
1332 }
1333
1334 /****************************************************************************
1335 Copy a file.
1336 ****************************************************************************/
1337
1338 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1339 connection_struct *conn,
1340 struct smb_request *req,
1341 struct smb_filename *smb_fname_src,
1342 struct smb_filename *smb_fname_dst,
1343 uint32 attrs)
1344 {
1345 files_struct *fsp1,*fsp2;
1346 uint32 fattr;
1347 int info;
1348 SMB_OFF_T ret=-1;
1349 NTSTATUS status = NT_STATUS_OK;
1350 char *parent;
1351
1352 if (!CAN_WRITE(conn)) {
1353 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1354 goto out;
1355 }
1356
1357 /* Source must already exist. */
1358 if (!VALID_STAT(smb_fname_src->st)) {
1359 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1360 goto out;
1361 }
1362
1363 /* Ensure attributes match. */
1364 fattr = dos_mode(conn, smb_fname_src);
1365 if ((fattr & ~attrs) & (aHIDDEN | aSYSTEM)) {
1366 status = NT_STATUS_NO_SUCH_FILE;
1367 goto out;
1368 }
1369
1370 /* Disallow if dst file already exists. */
1371 if (VALID_STAT(smb_fname_dst->st)) {
1372 status = NT_STATUS_OBJECT_NAME_COLLISION;
1373 goto out;
1374 }
1375
1376 /* No links from a directory. */
1377 if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1378 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1379 goto out;
1380 }
1381
1382 DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1383 smb_fname_str_dbg(smb_fname_src),
1384 smb_fname_str_dbg(smb_fname_dst)));
1385
1386 status = SMB_VFS_CREATE_FILE(
1387 conn, /* conn */
1388 req, /* req */
1389 0, /* root_dir_fid */
1390 smb_fname_src, /* fname */
1391 FILE_READ_DATA, /* access_mask */
1392 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1393 FILE_SHARE_DELETE),
1394 FILE_OPEN, /* create_disposition*/
1395 0, /* create_options */
1396 FILE_ATTRIBUTE_NORMAL, /* file_attributes */
1397 NO_OPLOCK, /* oplock_request */
1398 0, /* allocation_size */
1399 0, /* private_flags */
1400 NULL, /* sd */
1401 NULL, /* ea_list */
1402 &fsp1, /* result */
1403 &info); /* pinfo */
1404
1405 if (!NT_STATUS_IS_OK(status)) {
1406 goto out;
1407 }
1408
1409 status = SMB_VFS_CREATE_FILE(
1410 conn, /* conn */
1411 req, /* req */
1412 0, /* root_dir_fid */
1413 smb_fname_dst, /* fname */
1414 FILE_WRITE_DATA, /* access_mask */
1415 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1416 FILE_SHARE_DELETE),
1417 FILE_CREATE, /* create_disposition*/
1418 0, /* create_options */
1419 fattr, /* file_attributes */
1420 NO_OPLOCK, /* oplock_request */
1421 0, /* allocation_size */
1422 0, /* private_flags */
1423 NULL, /* sd */
1424 NULL, /* ea_list */
1425 &fsp2, /* result */
1426 &info); /* pinfo */
1427
1428 if (!NT_STATUS_IS_OK(status)) {
1429 close_file(NULL, fsp1, ERROR_CLOSE);
1430 goto out;
1431 }
1432
1433 if (smb_fname_src->st.st_ex_size) {
1434 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1435 }
1436
1437 /*
1438 * As we are opening fsp1 read-only we only expect
1439 * an error on close on fsp2 if we are out of space.
1440 * Thus we don't look at the error return from the
1441 * close of fsp1.
1442 */
1443 close_file(NULL, fsp1, NORMAL_CLOSE);
1444
1445 /* Ensure the modtime is set correctly on the destination file. */
1446 set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1447
1448 status = close_file(NULL, fsp2, NORMAL_CLOSE);
1449
1450 /* Grrr. We have to do this as open_file_ntcreate adds aARCH when it
1451 creates the file. This isn't the correct thing to do in the copy
1452 case. JRA */
1453 if (!parent_dirname(talloc_tos(), smb_fname_dst->base_name, &parent,
1454 NULL)) {
1455 status = NT_STATUS_NO_MEMORY;
1456 goto out;
1457 }
1458 file_set_dosmode(conn, smb_fname_dst, fattr, parent, false);
1459 TALLOC_FREE(parent);
1460
1461 if (ret < (SMB_OFF_T)smb_fname_src->st.st_ex_size) {
1462 status = NT_STATUS_DISK_FULL;
1463 goto out;
1464 }
1465 out:
1466 if (!NT_STATUS_IS_OK(status)) {
1467 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1468 nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1469 smb_fname_str_dbg(smb_fname_dst)));
1470 }
1471
1472 return status;
1473 }
1474
1475 /****************************************************************************
1476 Reply to a NT rename request.
1477 ****************************************************************************/
1478
1479 void reply_ntrename(struct smb_request *req)
1480 {
1481 connection_struct *conn = req->conn;
1482 struct smb_filename *smb_fname_old = NULL;
1483 struct smb_filename *smb_fname_new = NULL;
1484 char *oldname = NULL;
1485 char *newname = NULL;
1486 const char *p;
1487 NTSTATUS status;
1488 bool src_has_wcard = False;
1489 bool dest_has_wcard = False;
1490 uint32 attrs;
1491 uint32_t ucf_flags_src = 0;
1492 uint32_t ucf_flags_dst = 0;
1493 uint16 rename_type;
1494 TALLOC_CTX *ctx = talloc_tos();
1495
1496 START_PROFILE(SMBntrename);
1497
1498 if (req->wct < 4) {
1499 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1500 goto out;
1501 }
1502
1503 attrs = SVAL(req->vwv+0, 0);
1504 rename_type = SVAL(req->vwv+1, 0);
1505
1506 p = (const char *)req->buf + 1;
1507 p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1508 &status, &src_has_wcard);
1509 if (!NT_STATUS_IS_OK(status)) {
1510 reply_nterror(req, status);
1511 goto out;
1512 }
1513
1514 if (ms_has_wild(oldname)) {
1515 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1516 goto out;
1517 }
1518
1519 p++;
1520 p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1521 &status, &dest_has_wcard);
1522 if (!NT_STATUS_IS_OK(status)) {
1523 reply_nterror(req, status);
1524 goto out;
1525 }
1526
1527 /* The newname must begin with a ':' if the oldname contains a ':'. */
1528 if (strchr_m(oldname, ':') && (newname[0] != ':')) {
1529 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1530 goto out;
1531 }
1532
1533 /*
1534 * If this is a rename operation, allow wildcards and save the
1535 * destination's last component.
1536 */
1537 if (rename_type == RENAME_FLAG_RENAME) {
1538 ucf_flags_src = UCF_COND_ALLOW_WCARD_LCOMP;
1539 ucf_flags_dst = UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1540 }
1541
1542 /* rename_internals() calls unix_convert(), so don't call it here. */
1543 status = filename_convert(ctx, conn,
1544 req->flags2 & FLAGS2_DFS_PATHNAMES,
1545 oldname,
1546 ucf_flags_src,
1547 NULL,
1548 &smb_fname_old);
1549 if (!NT_STATUS_IS_OK(status)) {
1550 if (NT_STATUS_EQUAL(status,
1551 NT_STATUS_PATH_NOT_COVERED)) {
1552 reply_botherror(req,
1553 NT_STATUS_PATH_NOT_COVERED,
1554 ERRSRV, ERRbadpath);
1555 goto out;
1556 }
1557 reply_nterror(req, status);
1558 goto out;
1559 }
1560
1561 status = filename_convert(ctx, conn,
1562 req->flags2 & FLAGS2_DFS_PATHNAMES,
1563 newname,
1564 ucf_flags_dst,
1565 &dest_has_wcard,
1566 &smb_fname_new);
1567 if (!NT_STATUS_IS_OK(status)) {
1568 if (NT_STATUS_EQUAL(status,
1569 NT_STATUS_PATH_NOT_COVERED)) {
1570 reply_botherror(req,
1571 NT_STATUS_PATH_NOT_COVERED,
1572 ERRSRV, ERRbadpath);
1573 goto out;
1574 }
1575 reply_nterror(req, status);
1576 goto out;
1577 }
1578
1579 DEBUG(3,("reply_ntrename: %s -> %s\n",
1580 smb_fname_str_dbg(smb_fname_old),
1581 smb_fname_str_dbg(smb_fname_new)));
1582
1583 switch(rename_type) {
1584 case RENAME_FLAG_RENAME:
1585 status = rename_internals(ctx, conn, req,
1586 smb_fname_old, smb_fname_new,
1587 attrs, False, src_has_wcard,
1588 dest_has_wcard,
1589 DELETE_ACCESS);
1590 break;
1591 case RENAME_FLAG_HARD_LINK:
1592 if (src_has_wcard || dest_has_wcard) {
1593 /* No wildcards. */
1594 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1595 } else {
1596 status = hardlink_internals(ctx, conn,
1597 req,
1598 false,
1599 smb_fname_old,
1600 smb_fname_new);
1601 }
1602 break;
1603 case RENAME_FLAG_COPY:
1604 if (src_has_wcard || dest_has_wcard) {
1605 /* No wildcards. */
1606 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1607 } else {
1608 status = copy_internals(ctx, conn, req,
1609 smb_fname_old,
1610 smb_fname_new,
1611 attrs);
1612 }
1613 break;
1614 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1615 status = NT_STATUS_INVALID_PARAMETER;
1616 break;
1617 default:
1618 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1619 break;
1620 }
1621
1622 if (!NT_STATUS_IS_OK(status)) {
1623 if (open_was_deferred(req->mid)) {
1624 /* We have re-scheduled this call. */
1625 goto out;
1626 }
1627
1628 reply_nterror(req, status);
1629 goto out;
1630 }
1631
1632 reply_outbuf(req, 0, 0);
1633 out:
1634 END_PROFILE(SMBntrename);
1635 return;
1636 }
1637
1638 /****************************************************************************
1639 Reply to a notify change - queue the request and
1640 don't allow a directory to be opened.
1641 ****************************************************************************/
1642
1643 static void smbd_smb1_notify_reply(struct smb_request *req,
1644 NTSTATUS error_code,
1645 uint8_t *buf, size_t len)
1646 {
1647 send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1648 }
1649
1650 static void call_nt_transact_notify_change(connection_struct *conn,
1651 struct smb_request *req,
1652 uint16 **ppsetup,
1653 uint32 setup_count,
1654 char **ppparams,
1655 uint32 parameter_count,
1656 char **ppdata, uint32 data_count,
1657 uint32 max_data_count,
1658 uint32 max_param_count)
1659 {
1660 uint16 *setup = *ppsetup;
1661 files_struct *fsp;
1662 uint32 filter;
1663 NTSTATUS status;
1664 bool recursive;
1665
1666 if(setup_count < 6) {
1667 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1668 return;
1669 }
1670
1671 fsp = file_fsp(req, SVAL(setup,4));
1672 filter = IVAL(setup, 0);
1673 recursive = (SVAL(setup, 6) != 0) ? True : False;
1674
1675 DEBUG(3,("call_nt_transact_notify_change\n"));
1676
1677 if(!fsp) {
1678 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1679 return;
1680 }
1681
1682 {
1683 char *filter_string;
1684
1685 if (!(filter_string = notify_filter_string(NULL, filter))) {
1686 reply_nterror(req,NT_STATUS_NO_MEMORY);
1687 return;
1688 }
1689
1690 DEBUG(3,("call_nt_transact_notify_change: notify change "
1691 "called on %s, filter = %s, recursive = %d\n",
1692 fsp_str_dbg(fsp), filter_string, recursive));
1693
1694 TALLOC_FREE(filter_string);
1695 }
1696
1697 if((!fsp->is_directory) || (conn != fsp->conn)) {
1698 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1699 return;
1700 }
1701
1702 if (fsp->notify == NULL) {
1703
1704 status = change_notify_create(fsp, filter, recursive);
1705
1706 if (!NT_STATUS_IS_OK(status)) {
1707 DEBUG(10, ("change_notify_create returned %s\n",
1708 nt_errstr(status)));
1709 reply_nterror(req, status);
1710 return;
1711 }
1712 }
1713
1714 if (fsp->notify->num_changes != 0) {
1715
1716 /*
1717 * We've got changes pending, respond immediately
1718 */
1719
1720 /*
1721 * TODO: write a torture test to check the filtering behaviour
1722 * here.
1723 */
1724
1725 change_notify_reply(req,
1726 NT_STATUS_OK,
1727 max_param_count,
1728 fsp->notify,
1729 smbd_smb1_notify_reply);
1730
1731 /*
1732 * change_notify_reply() above has independently sent its
1733 * results
1734 */
1735 return;
1736 }
1737
1738 /*
1739 * No changes pending, queue the request
1740 */
1741
1742 status = change_notify_add_request(req,
1743 max_param_count,
1744 filter,
1745 recursive, fsp,
1746 smbd_smb1_notify_reply);
1747 if (!NT_STATUS_IS_OK(status)) {
1748 reply_nterror(req, status);
1749 }
1750 return;
1751 }
1752
1753 /****************************************************************************
1754 Reply to an NT transact rename command.
1755 ****************************************************************************/
1756
1757 static void call_nt_transact_rename(connection_struct *conn,
1758 struct smb_request *req,
1759 uint16 **ppsetup, uint32 setup_count,
1760 char **ppparams, uint32 parameter_count,
1761 char **ppdata, uint32 data_count,
1762 uint32 max_data_count)
1763 {
1764 char *params = *ppparams;
1765 char *new_name = NULL;
1766 files_struct *fsp = NULL;
1767 bool dest_has_wcard = False;
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 srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1781 parameter_count - 4,
1782 STR_TERMINATE, &status, &dest_has_wcard);
1783 if (!NT_STATUS_IS_OK(status)) {
1784 reply_nterror(req, status);
1785 return;
1786 }
1787
1788 /*
1789 * W2K3 ignores this request as the RAW-RENAME test
1790 * demonstrates, so we do.
1791 */
1792 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1793
1794 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1795 fsp_str_dbg(fsp), new_name));
1796
1797 return;
1798 }
1799
1800 /******************************************************************************
1801 Fake up a completely empty SD.
1802 *******************************************************************************/
1803
1804 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, struct security_descriptor **ppsd)
1805 {
1806 size_t sd_size;
1807
1808 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1809 if(!*ppsd) {
1810 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1811 return NT_STATUS_NO_MEMORY;
1812 }
1813
1814 return NT_STATUS_OK;
1815 }
1816
1817 /****************************************************************************
1818 Reply to query a security descriptor.
1819 Callable from SMB2 and SMB2.
1820 If it returns NT_STATUS_BUFFER_TOO_SMALL, pdata_size is initialized with
1821 the required size.
1822 ****************************************************************************/
1823
1824 NTSTATUS smbd_do_query_security_desc(connection_struct *conn,
1825 TALLOC_CTX *mem_ctx,
1826 files_struct *fsp,
1827 uint32_t security_info_wanted,
1828 uint32_t max_data_count,
1829 uint8_t **ppmarshalled_sd,
1830 size_t *psd_size)
1831 {
1832 NTSTATUS status;
1833 struct security_descriptor *psd = NULL;
1834
1835 /*
1836 * Get the permissions to return.
1837 */
1838
1839 if (!lp_nt_acl_support(SNUM(conn))) {
1840 status = get_null_nt_acl(mem_ctx, &psd);
1841 } else {
1842 status = SMB_VFS_FGET_NT_ACL(
1843 fsp, security_info_wanted, &psd);
1844 }
1845 if (!NT_STATUS_IS_OK(status)) {
1846 return status;
1847 }
1848
1849 if (!(security_info_wanted & SECINFO_OWNER)) {
1850 psd->owner_sid = NULL;
1851 }
1852 if (!(security_info_wanted & SECINFO_GROUP)) {
1853 psd->group_sid = NULL;
1854 }
1855 if (!(security_info_wanted & SECINFO_DACL)) {
1856 psd->dacl = NULL;
1857 }
1858 if (!(security_info_wanted & SECINFO_SACL)) {
1859 psd->sacl = NULL;
1860 }
1861
1862 /* If the SACL/DACL is NULL, but was requested, we mark that it is
1863 * present in the reply to match Windows behavior */
1864 if (psd->sacl == NULL &&
1865 security_info_wanted & SECINFO_SACL)
1866 psd->type |= SEC_DESC_SACL_PRESENT;
1867 if (psd->dacl == NULL &&
1868 security_info_wanted & SECINFO_DACL)
1869 psd->type |= SEC_DESC_DACL_PRESENT;
1870
1871 *psd_size = ndr_size_security_descriptor(psd, 0);
1872
1873 DEBUG(3,("smbd_do_query_security_desc: sd_size = %lu.\n",
1874 (unsigned long)*psd_size));
1875
1876 if (DEBUGLEVEL >= 10) {
1877 DEBUG(10,("smbd_do_query_security_desc for file %s\n",
1878 fsp_str_dbg(fsp)));
1879 NDR_PRINT_DEBUG(security_descriptor, psd);
1880 }
1881
1882 if (max_data_count < *psd_size) {
1883 TALLOC_FREE(psd);
1884 return NT_STATUS_BUFFER_TOO_SMALL;
1885 }
1886
1887 status = marshall_sec_desc(mem_ctx, psd,
1888 ppmarshalled_sd, psd_size);
1889
1890 if (!NT_STATUS_IS_OK(status)) {
1891 TALLOC_FREE(psd);
1892 return status;
1893 }
1894
1895 TALLOC_FREE(psd);
1896 return NT_STATUS_OK;
1897 }
1898
1899 /****************************************************************************
1900 SMB1 reply to query a security descriptor.
1901 ****************************************************************************/
1902
1903 static void call_nt_transact_query_security_desc(connection_struct *conn,
1904 struct smb_request *req,
1905 uint16 **ppsetup,
1906 uint32 setup_count,
1907 char **ppparams,
1908 uint32 parameter_count,
1909 char **ppdata,
1910 uint32 data_count,
1911 uint32 max_data_count)
1912 {
1913 char *params = *ppparams;
1914 char *data = *ppdata;
1915 size_t sd_size = 0;
1916 uint32 security_info_wanted;
1917 files_struct *fsp = NULL;
1918 NTSTATUS status;
1919 uint8_t *marshalled_sd = NULL;
1920
1921 if(parameter_count < 8) {
1922 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1923 return;
1924 }
1925
1926 fsp = file_fsp(req, SVAL(params,0));
1927 if(!fsp) {
1928 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1929 return;
1930 }
1931
1932 security_info_wanted = IVAL(params,4);
1933
1934 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
1935 "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
1936 (unsigned int)security_info_wanted));
1937
1938 params = nttrans_realloc(ppparams, 4);
1939 if(params == NULL) {
1940 reply_nterror(req, NT_STATUS_NO_MEMORY);
1941 return;
1942 }
1943
1944 /*
1945 * Get the permissions to return.
1946 */
1947
1948 status = smbd_do_query_security_desc(conn,
1949 talloc_tos(),
1950 fsp,
1951 security_info_wanted,
1952 max_data_count,
1953 &marshalled_sd,
1954 &sd_size);
1955
1956 if (NT_STATUS_EQUAL(status, NT_STATUS_BUFFER_TOO_SMALL)) {
1957 SIVAL(params,0,(uint32_t)sd_size);
1958 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1959 params, 4, NULL, 0);
1960 return;
1961 }
1962
1963 if (!NT_STATUS_IS_OK(status)) {
1964 reply_nterror(req, status);
1965 return;
1966 }
1967
1968 SMB_ASSERT(sd_size > 0);
1969
1970 SIVAL(params,0,(uint32_t)sd_size);
1971
1972 if (max_data_count < sd_size) {
1973 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1974 params, 4, NULL, 0);
1975 return;
1976 }
1977
1978 /*
1979 * Allocate the data we will return.
1980 */
1981
1982 data = nttrans_realloc(ppdata, sd_size);
1983 if(data == NULL) {
1984 reply_nterror(req, NT_STATUS_NO_MEMORY);
1985 return;
1986 }
1987
1988 memcpy(data, marshalled_sd, sd_size);
1989
1990 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
1991
1992 return;
1993 }
1994
1995 /****************************************************************************
1996 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
1997 ****************************************************************************/
1998
1999 static void call_nt_transact_set_security_desc(connection_struct *conn,
2000 struct smb_request *req,
2001 uint16 **ppsetup,
2002 uint32 setup_count,
2003 char **ppparams,
2004 uint32 parameter_count,
2005 char **ppdata,
2006 uint32 data_count,
2007 uint32 max_data_count)
2008 {
2009 char *params= *ppparams;
2010 char *data = *ppdata;
2011 files_struct *fsp = NULL;
2012 uint32 security_info_sent = 0;
2013 NTSTATUS status;
2014
2015 if(parameter_count < 8) {
2016 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2017 return;
2018 }
2019
2020 if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
2021 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2022 return;
2023 }
2024
2025 if (!CAN_WRITE(fsp->conn)) {
2026 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2027 return;
2028 }
2029
2030 if(!lp_nt_acl_support(SNUM(conn))) {
2031 goto done;
2032 }
2033
2034 security_info_sent = IVAL(params,4);
2035
2036 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
2037 fsp_str_dbg(fsp), (unsigned int)security_info_sent));
2038
2039 if (data_count == 0) {
2040 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2041 return;
2042 }
2043
2044 status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
2045
2046 if (!NT_STATUS_IS_OK(status)) {
2047 reply_nterror(req, status);
2048 return;
2049 }
2050
2051 done:
2052 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2053 return;
2054 }
2055
2056 /****************************************************************************
2057 Reply to NT IOCTL
2058 ****************************************************************************/
2059
2060 static void call_nt_transact_ioctl(connection_struct *conn,
2061 struct smb_request *req,
2062 uint16 **ppsetup, uint32 setup_count,
2063 char **ppparams, uint32 parameter_count,
2064 char **ppdata, uint32 data_count,
2065 uint32 max_data_count)
2066 {
2067 uint32 function;
2068 uint16 fidnum;
2069 files_struct *fsp;
2070 uint8 isFSctl;
2071 uint8 compfilter;
2072 char *pdata = *ppdata;
2073
2074 if (setup_count != 8) {
2075 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
2076 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2077 return;
2078 }
2079
2080 function = IVAL(*ppsetup, 0);
2081 fidnum = SVAL(*ppsetup, 4);
2082 isFSctl = CVAL(*ppsetup, 6);
2083 compfilter = CVAL(*ppsetup, 7);
2084
2085 DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
2086 function, fidnum, isFSctl, compfilter));
2087
2088 fsp=file_fsp(req, fidnum);
2089 /* this check is done in each implemented function case for now
2090 because I don't want to break anything... --metze
2091 FSP_BELONGS_CONN(fsp,conn);*/
2092
2093 SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
2094
2095 switch (function) {
2096 case FSCTL_SET_SPARSE:
2097 /* pretend this succeeded - tho strictly we should
2098 mark the file sparse (if the local fs supports it)
2099 so we can know if we need to pre-allocate or not */
2100
2101 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum));
2102 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2103 return;
2104
2105 case FSCTL_CREATE_OR_GET_OBJECT_ID:
2106 {
2107 unsigned char objid[16];
2108
2109 /* This should return the object-id on this file.
2110 * I think I'll make this be the inode+dev. JRA.
2111 */
2112
2113 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
2114
2115 if (!check_fsp_open(conn, req, fsp)) {
2116 return;
2117 }
2118
2119 data_count = 64;
2120 pdata = nttrans_realloc(ppdata, data_count);
2121 if (pdata == NULL) {
2122 reply_nterror(req, NT_STATUS_NO_MEMORY);
2123 return;
2124 }
2125
2126 /* For backwards compatibility only store the dev/inode. */
2127 push_file_id_16(pdata, &fsp->file_id);
2128 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
2129 push_file_id_16(pdata+32, &fsp->file_id);
2130 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2131 pdata, data_count);
2132 return;
2133 }
2134
2135 case FSCTL_GET_REPARSE_POINT:
2136 /* pretend this fail - my winXP does it like this
2137 * --metze
2138 */
2139
2140 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
2141 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
2142 return;
2143
2144 case FSCTL_SET_REPARSE_POINT:
2145 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
2146 * --metze
2147 */
2148
2149 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
2150 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
2151 return;
2152
2153 case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
2154 {
2155 /*
2156 * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
2157 * and return their volume names. If max_data_count is 16, then it is just
2158 * asking for the number of volumes and length of the combined names.
2159 *
2160 * pdata is the data allocated by our caller, but that uses
2161 * total_data_count (which is 0 in our case) rather than max_data_count.
2162 * Allocate the correct amount and return the pointer to let
2163 * it be deallocated when we return.
2164 */
2165 SHADOW_COPY_DATA *shadow_data = NULL;
2166 TALLOC_CTX *shadow_mem_ctx = NULL;
2167 bool labels = False;
2168 uint32 labels_data_count = 0;
2169 uint32 i;
2170 char *cur_pdata;
2171
2172 if (!check_fsp_open(conn, req, fsp)) {
2173 return;
2174 }
2175
2176 if (max_data_count < 16) {
2177 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
2178 max_data_count));
2179 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2180 return;
2181 }
2182
2183 if (max_data_count > 16) {
2184 labels = True;
2185 }
2186
2187 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
2188 if (shadow_mem_ctx == NULL) {
2189 DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
2190 reply_nterror(req, NT_STATUS_NO_MEMORY);
2191 return;
2192 }
2193
2194 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
2195 if (shadow_data == NULL) {
2196 DEBUG(0,("TALLOC_ZERO() failed!\n"));
2197 talloc_destroy(shadow_mem_ctx);
2198 reply_nterror(req, NT_STATUS_NO_MEMORY);
2199 return;
2200 }
2201
2202 shadow_data->mem_ctx = shadow_mem_ctx;
2203
2204 /*
2205 * Call the VFS routine to actually do the work.
2206 */
2207 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
2208 talloc_destroy(shadow_data->mem_ctx);
2209 if (errno == ENOSYS) {
2210 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
2211 conn->connectpath));
2212 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2213 return;
2214 } else {
2215 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
2216 conn->connectpath));
2217 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
2218 return;
2219 }
2220 }
2221
2222 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
2223
2224 if (!labels) {
2225 data_count = 16;
2226 } else {
2227 data_count = 12+labels_data_count+4;
2228 }
2229
2230 if (max_data_count<data_count) {
2231 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
2232 max_data_count,data_count));
2233 talloc_destroy(shadow_data->mem_ctx);
2234 reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
2235 return;
2236 }
2237
2238 pdata = nttrans_realloc(ppdata, data_count);
2239 if (pdata == NULL) {
2240 talloc_destroy(shadow_data->mem_ctx);
2241 reply_nterror(req, NT_STATUS_NO_MEMORY);
2242 return;
2243 }
2244
2245 cur_pdata = pdata;
2246
2247 /* num_volumes 4 bytes */
2248 SIVAL(pdata,0,shadow_data->num_volumes);
2249
2250 if (labels) {
2251 /* num_labels 4 bytes */
2252 SIVAL(pdata,4,shadow_data->num_volumes);
2253 }
2254
2255 /* needed_data_count 4 bytes */
2256 SIVAL(pdata, 8, labels_data_count+4);
2257
2258 cur_pdata+=12;
2259
2260 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
2261 shadow_data->num_volumes, fsp_str_dbg(fsp)));
2262 if (labels && shadow_data->labels) {
2263 for (i=0;i<shadow_data->num_volumes;i++) {
2264 srvstr_push(pdata, req->flags2,
2265 cur_pdata, shadow_data->labels[i],
2266 2*sizeof(SHADOW_COPY_LABEL),
2267 STR_UNICODE|STR_TERMINATE);
2268 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
2269 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
2270 }
2271 }
2272
2273 talloc_destroy(shadow_data->mem_ctx);
2274
2275 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2276 pdata, data_count);
2277
2278 return;
2279 }
2280
2281 case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
2282 {
2283 /* pretend this succeeded -
2284 *
2285 * we have to send back a list with all files owned by this SID
2286 *
2287 * but I have to check that --metze
2288 */
2289 struct dom_sid sid;
2290 uid_t uid;
2291 size_t sid_len;
2292
2293 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
2294
2295 if (!check_fsp_open(conn, req, fsp)) {
2296 return;
2297 }
2298
2299 if (data_count < 8) {
2300 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2301 return;
2302 }
2303
2304 sid_len = MIN(data_count-4,SID_MAX_SIZE);
2305
2306 /* unknown 4 bytes: this is not the length of the sid :-( */
2307 /*unknown = IVAL(pdata,0);*/
2308
2309 if (!sid_parse(pdata+4,sid_len,&sid)) {
2310 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2311 return;
2312 }
2313 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
2314
2315 if (!sid_to_uid(&sid, &uid)) {
2316 DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
2317 sid_string_dbg(&sid),
2318 (unsigned long)sid_len));
2319 uid = (-1);
2320 }
2321
2322 /* we can take a look at the find source :-)
2323 *
2324 * find ./ -uid $uid -name '*' is what we need here
2325 *
2326 *
2327 * and send 4bytes len and then NULL terminated unicode strings
2328 * for each file
2329 *
2330 * but I don't know how to deal with the paged results
2331 * (maybe we can hang the result anywhere in the fsp struct)
2332 *
2333 * we don't send all files at once
2334 * and at the next we should *not* start from the beginning,
2335 * so we have to cache the result
2336 *
2337 * --metze
2338 */
2339
2340 /* this works for now... */
2341 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2342 return;
2343 }
2344 case FSCTL_QUERY_ALLOCATED_RANGES:
2345 {
2346 /* FIXME: This is just a dummy reply, telling that all of the
2347 * file is allocated. MKS cp needs that.
2348 * Adding the real allocated ranges via FIEMAP on Linux
2349 * and SEEK_DATA/SEEK_HOLE on Solaris is needed to make
2350 * this FSCTL correct for sparse files.
2351 */
2352 NTSTATUS status;
2353 uint64_t offset, length;
2354
2355 if (!check_fsp_open(conn, req, fsp)) {
2356 return;
2357 }
2358
2359 if (data_count != 16) {
2360 DEBUG(0,("FSCTL_QUERY_ALLOCATED_RANGES: data_count(%u) != 16 is invalid!\n",
2361 data_count));
2362 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2363 return;
2364 }
2365
2366 if (max_data_count < 16) {
2367 DEBUG(0,("FSCTL_QUERY_ALLOCATED_RANGES: max_data_count(%u) < 16 is invalid!\n",
2368 max_data_count));
2369 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2370 return;
2371 }
2372
2373 offset = BVAL(pdata,0);
2374 length = BVAL(pdata,8);
2375
2376 if (offset + length < offset) {
2377 /* No 64-bit integer wrap. */
2378 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2379 return;
2380 }
2381
2382 status = vfs_stat_fsp(fsp);
2383 if (!NT_STATUS_IS_OK(status)) {
2384 reply_nterror(req, status);
2385 return;
2386 }
2387
2388 if (offset > fsp->fsp_name->st.st_ex_size ||
2389 fsp->fsp_name->st.st_ex_size == 0 ||
2390 length == 0) {
2391 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2392 } else {
2393 uint64_t end = offset + length;
2394 end = MIN(end, fsp->fsp_name->st.st_ex_size);
2395 SBVAL(pdata,0,0);
2396 SBVAL(pdata,8,end);
2397 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2398 pdata, 16);
2399 }
2400 return;
2401 }
2402 default:
2403 /* Only print this once... */
2404 if (!logged_ioctl_message) {
2405 logged_ioctl_message = true;
2406 DEBUG(2,("call_nt_transact_ioctl(0x%x): "
2407 "Currently not implemented.\n",
2408 function));
2409 }
2410 }
2411
2412 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2413 }
2414
2415
2416 #ifdef HAVE_SYS_QUOTAS
2417 /****************************************************************************
2418 Reply to get user quota
2419 ****************************************************************************/
2420
2421 static void call_nt_transact_get_user_quota(connection_struct *conn,
2422 struct smb_request *req,
2423 uint16 **ppsetup,
2424 uint32 setup_count,
2425 char **ppparams,
2426 uint32 parameter_count,
2427 char **ppdata,
2428 uint32 data_count,
2429 uint32 max_data_count)
2430 {
2431 NTSTATUS nt_status = NT_STATUS_OK;
2432 char *params = *ppparams;
2433 char *pdata = *ppdata;
2434 char *entry;
2435 int data_len=0,param_len=0;
2436 int qt_len=0;
2437 int entry_len = 0;
2438 files_struct *fsp = NULL;
2439 uint16 level = 0;
2440 size_t sid_len;
2441 struct dom_sid sid;
2442 bool start_enum = True;
2443 SMB_NTQUOTA_STRUCT qt;
2444 SMB_NTQUOTA_LIST *tmp_list;
2445 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2446
2447 ZERO_STRUCT(qt);
2448
2449 /* access check */
2450 if (conn->server_info->utok.uid != 0) {
2451 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2452 "[%s]\n", lp_servicename(SNUM(conn)),
2453 conn->server_info->unix_name));
2454 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2455 return;
2456 }
2457
2458 /*
2459 * Ensure minimum number of parameters sent.
2460 */
2461
2462 if (parameter_count < 4) {
2463 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2464 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2465 return;
2466 }
2467
2468 /* maybe we can check the quota_fnum */
2469 fsp = file_fsp(req, SVAL(params,0));
2470 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2471 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2472 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2473 return;
2474 }
2475
2476 /* the NULL pointer checking for fsp->fake_file_handle->pd
2477 * is done by CHECK_NTQUOTA_HANDLE_OK()
2478 */
2479 qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2480
2481 level = SVAL(params,2);
2482
2483 /* unknown 12 bytes leading in params */
2484
2485 switch (level) {
2486 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2487 /* seems that we should continue with the enum here --metze */
2488
2489 if (qt_handle->quota_list!=NULL &&
2490 qt_handle->tmp_list==NULL) {
2491
2492 /* free the list */
2493 free_ntquota_list(&(qt_handle->quota_list));
2494
2495 /* Realloc the size of parameters and data we will return */
2496 param_len = 4;
2497 params = nttrans_realloc(ppparams, param_len);
2498 if(params == NULL) {
2499 reply_nterror(req, NT_STATUS_NO_MEMORY);
2500 return;
2501 }
2502
2503 data_len = 0;
2504 SIVAL(params,0,data_len);
2505
2506 break;
2507 }
2508
2509 start_enum = False;
2510
2511 case TRANSACT_GET_USER_QUOTA_LIST_START:
2512
2513 if (qt_handle->quota_list==NULL &&
2514 qt_handle->tmp_list==NULL) {
2515 start_enum = True;
2516 }
2517
2518 if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2519 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2520 return;
2521 }
2522
2523 /* Realloc the size of parameters and data we will return */
2524 param_len = 4;
2525 params = nttrans_realloc(ppparams, param_len);
2526 if(params == NULL) {
2527 reply_nterror(req, NT_STATUS_NO_MEMORY);
2528 return;
2529 }
2530
2531 /* we should not trust the value in max_data_count*/
2532 max_data_count = MIN(max_data_count,2048);
2533
2534 pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2535 if(pdata == NULL) {
2536 reply_nterror(req, NT_STATUS_NO_MEMORY);
2537 return;
2538 }
2539
2540 entry = pdata;
2541
2542 /* set params Size of returned Quota Data 4 bytes*/
2543 /* but set it later when we know it */
2544
2545 /* for each entry push the data */
2546
2547 if (start_enum) {
2548 qt_handle->tmp_list = qt_handle->quota_list;
2549 }
2550
2551 tmp_list = qt_handle->tmp_list;
2552
2553 for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2554 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2555
2556 sid_len = ndr_size_dom_sid(
2557 &tmp_list->quotas->sid, 0);
2558 entry_len = 40 + sid_len;
2559
2560 /* nextoffset entry 4 bytes */
2561 SIVAL(entry,0,entry_len);
2562
2563 /* then the len of the SID 4 bytes */
2564 SIVAL(entry,4,sid_len);
2565
2566 /* unknown data 8 bytes uint64_t */
2567 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2568
2569 /* the used disk space 8 bytes uint64_t */
2570 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2571
2572 /* the soft quotas 8 bytes uint64_t */
2573 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2574
2575 /* the hard quotas 8 bytes uint64_t */
2576 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2577
2578 /* and now the SID */
2579 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2580 }
2581
2582 qt_handle->tmp_list = tmp_list;
2583
2584 /* overwrite the offset of the last entry */
2585 SIVAL(entry-entry_len,0,0);
2586
2587 data_len = 4+qt_len;
2588 /* overwrite the params quota_data_len */
2589 SIVAL(params,0,data_len);
2590
2591 break;
2592
2593 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2594
2595 /* unknown 4 bytes IVAL(pdata,0) */
2596
2597 if (data_count < 8) {
2598 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2599 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2600 return;
2601 }
2602
2603 sid_len = IVAL(pdata,4);
2604 /* Ensure this is less than 1mb. */
2605 if (sid_len > (1024*1024)) {
2606 reply_nterror(req, NT_STATUS_NO_MEMORY);
2607 return;
2608 }
2609
2610 if (data_count < 8+sid_len) {
2611 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2612 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2613 return;
2614 }
2615
2616 data_len = 4+40+sid_len;
2617
2618 if (max_data_count < data_len) {
2619 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2620 max_data_count, data_len));
2621 param_len = 4;
2622 SIVAL(params,0,data_len);
2623 data_len = 0;
2624 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2625 break;
2626 }
2627
2628 if (!sid_parse(pdata+8,sid_len,&sid)) {
2629 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2630 return;
2631 }
2632
2633 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2634 ZERO_STRUCT(qt);
2635 /*
2636 * we have to return zero's in all fields
2637 * instead of returning an error here
2638 * --metze
2639 */
2640 }
2641
2642 /* Realloc the size of parameters and data we will return */
2643 param_len = 4;
2644 params = nttrans_realloc(ppparams, param_len);
2645 if(params == NULL) {
2646 reply_nterror(req, NT_STATUS_NO_MEMORY);
2647 return;
2648 }
2649
2650 pdata = nttrans_realloc(ppdata, data_len);
2651 if(pdata == NULL) {
2652 reply_nterror(req, NT_STATUS_NO_MEMORY);
2653 return;
2654 }
2655
2656 entry = pdata;
2657
2658 /* set params Size of returned Quota Data 4 bytes*/
2659 SIVAL(params,0,data_len);
2660
2661 /* nextoffset entry 4 bytes */
2662 SIVAL(entry,0,0);
2663
2664 /* then the len of the SID 4 bytes */
2665 SIVAL(entry,4,sid_len);
2666
2667 /* unknown data 8 bytes uint64_t */
2668 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2669
2670 /* the used disk space 8 bytes uint64_t */
2671 SBIG_UINT(entry,16,qt.usedspace);
2672
2673 /* the soft quotas 8 bytes uint64_t */
2674 SBIG_UINT(entry,24,qt.softlim);
2675
2676 /* the hard quotas 8 bytes uint64_t */
2677 SBIG_UINT(entry,32,qt.hardlim);
2678
2679 /* and now the SID */
2680 sid_linearize(entry+40, sid_len, &sid);
2681
2682 break;
2683
2684 default:
2685 DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2686 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2687 return;
2688 break;
2689 }
2690
2691 send_nt_replies(conn, req, nt_status, params, param_len,
2692 pdata, data_len);
2693 }
2694
2695 /****************************************************************************
2696 Reply to set user quota
2697 ****************************************************************************/
2698
2699 static void call_nt_transact_set_user_quota(connection_struct *conn,
2700 struct smb_request *req,
2701 uint16 **ppsetup,
2702 uint32 setup_count,
2703 char **ppparams,
2704 uint32 parameter_count,
2705 char **ppdata,
2706 uint32 data_count,
2707 uint32 max_data_count)
2708 {
2709 char *params = *ppparams;
2710 char *pdata = *ppdata;
2711 int data_len=0,param_len=0;
2712 SMB_NTQUOTA_STRUCT qt;
2713 size_t sid_len;
2714 struct dom_sid sid;
2715 files_struct *fsp = NULL;
2716
2717 ZERO_STRUCT(qt);
2718
2719 /* access check */
2720 if (conn->server_info->utok.uid != 0) {
2721 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2722 "[%s]\n", lp_servicename(SNUM(conn)),
2723 conn->server_info->unix_name));
2724 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2725 return;
2726 }
2727
2728 /*
2729 * Ensure minimum number of parameters sent.
2730 */
2731
2732 if (parameter_count < 2) {
2733 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2734 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2735 return;
2736 }
2737
2738 /* maybe we can check the quota_fnum */
2739 fsp = file_fsp(req, SVAL(params,0));
2740 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2741 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2742 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2743 return;
2744 }
2745
2746 if (data_count < 40) {
2747 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2748 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2749 return;
2750 }
2751
2752 /* offset to next quota record.
2753 * 4 bytes IVAL(pdata,0)
2754 * unused here...
2755 */
2756
2757 /* sid len */
2758 sid_len = IVAL(pdata,4);
2759
2760 if (data_count < 40+sid_len || (40+sid_len < sid_len)) {
2761 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2762 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2763 return;
2764 }
2765
2766 /* unknown 8 bytes in pdata
2767 * maybe its the change time in NTTIME
2768 */
2769
2770 /* the used space 8 bytes (uint64_t)*/
2771 qt.usedspace = (uint64_t)IVAL(pdata,16);
2772 #ifdef LARGE_SMB_OFF_T
2773 qt.usedspace |= (((uint64_t)IVAL(pdata,20)) << 32);
2774 #else /* LARGE_SMB_OFF_T */
2775 if ((IVAL(pdata,20) != 0)&&
2776 ((qt.usedspace != 0xFFFFFFFF)||
2777 (IVAL(pdata,20)!=0xFFFFFFFF))) {
2778 /* more than 32 bits? */
2779 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2780 return;
2781 }
2782 #endif /* LARGE_SMB_OFF_T */
2783
2784 /* the soft quotas 8 bytes (uint64_t)*/
2785 qt.softlim = (uint64_t)IVAL(pdata,24);
2786 #ifdef LARGE_SMB_OFF_T
2787 qt.softlim |= (((uint64_t)IVAL(pdata,28)) << 32);
2788 #else /* LARGE_SMB_OFF_T */
2789 if ((IVAL(pdata,28) != 0)&&
2790 ((qt.softlim != 0xFFFFFFFF)||
2791 (IVAL(pdata,28)!=0xFFFFFFFF))) {
2792 /* more than 32 bits? */
2793 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2794 return;
2795 }
2796 #endif /* LARGE_SMB_OFF_T */
2797
2798 /* the hard quotas 8 bytes (uint64_t)*/
2799 qt.hardlim = (uint64_t)IVAL(pdata,32);
2800 #ifdef LARGE_SMB_OFF_T
2801 qt.hardlim |= (((uint64_t)IVAL(pdata,36)) << 32);
2802 #else /* LARGE_SMB_OFF_T */
2803 if ((IVAL(pdata,36) != 0)&&
2804 ((qt.hardlim != 0xFFFFFFFF)||
2805 (IVAL(pdata,36)!=0xFFFFFFFF))) {
2806 /* more than 32 bits? */
2807 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2808 return;
2809 }
2810 #endif /* LARGE_SMB_OFF_T */
2811
2812 if (!sid_parse(pdata+40,sid_len,&sid)) {
2813 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2814 return;
2815 }
2816
2817 DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2818
2819 /* 44 unknown bytes left... */
2820
2821 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2822 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2823 return;
2824 }
2825
2826 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2827 pdata, data_len);
2828 }
2829 #endif /* HAVE_SYS_QUOTAS */
2830
2831 static void handle_nttrans(connection_struct *conn,
2832 struct trans_state *state,
2833 struct smb_request *req)
2834 {
2835 if (get_Protocol() >= PROTOCOL_NT1) {
2836 req->flags2 |= 0x40; /* IS_LONG_NAME */
2837 SSVAL(req->inbuf,smb_flg2,req->flags2);
2838 }
2839
2840
2841 SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2842
2843 /* Now we must call the relevant NT_TRANS function */
2844 switch(state->call) {
2845 case NT_TRANSACT_CREATE:
2846 {
2847 START_PROFILE(NT_transact_create);
2848 call_nt_transact_create(
2849 conn, req,
2850 &state->setup, state->setup_count,
2851 &state->param, state->total_param,
2852 &state->data, state->total_data,
2853 state->max_data_return);
2854 END_PROFILE(NT_transact_create);
2855 break;
2856 }
2857
2858 case NT_TRANSACT_IOCTL:
2859 {
2860 START_PROFILE(NT_transact_ioctl);
2861 call_nt_transact_ioctl(
2862 conn, req,
2863 &state->setup, state->setup_count,
2864 &state->param, state->total_param,
2865 &state->data, state->total_data,
2866 state->max_data_return);
2867 END_PROFILE(NT_transact_ioctl);
2868 break;
2869 }
2870
2871 case NT_TRANSACT_SET_SECURITY_DESC:
2872 {
2873 START_PROFILE(NT_transact_set_security_desc);
2874 call_nt_transact_set_security_desc(
2875 conn, req,
2876 &state->setup, state->setup_count,
2877 &state->param, state->total_param,
2878 &state->data, state->total_data,
2879 state->max_data_return);
2880 END_PROFILE(NT_transact_set_security_desc);
2881 break;
2882 }
2883
2884 case NT_TRANSACT_NOTIFY_CHANGE:
2885 {
2886 START_PROFILE(NT_transact_notify_change);
2887 call_nt_transact_notify_change(
2888 conn, req,
2889 &state->setup, state->setup_count,
2890 &state->param, state->total_param,
2891 &state->data, state->total_data,
2892 state->max_data_return,
2893 state->max_param_return);
2894 END_PROFILE(NT_transact_notify_change);
2895 break;
2896 }
2897
2898 case NT_TRANSACT_RENAME:
2899 {
2900 START_PROFILE(NT_transact_rename);
2901 call_nt_transact_rename(
2902 conn, req,
2903 &state->setup, state->setup_count,
2904 &state->param, state->total_param,
2905 &state->data, state->total_data,
2906 state->max_data_return);
2907 END_PROFILE(NT_transact_rename);
2908 break;
2909 }
2910
2911 case NT_TRANSACT_QUERY_SECURITY_DESC:
2912 {
2913 START_PROFILE(NT_transact_query_security_desc);
2914 call_nt_transact_query_security_desc(
2915 conn, req,
2916 &state->setup, state->setup_count,
2917 &state->param, state->total_param,
2918 &state->data, state->total_data,
2919 state->max_data_return);
2920 END_PROFILE(NT_transact_query_security_desc);
2921 break;
2922 }
2923
2924 #ifdef HAVE_SYS_QUOTAS
2925 case NT_TRANSACT_GET_USER_QUOTA:
2926 {
2927 START_PROFILE(NT_transact_get_user_quota);
2928 call_nt_transact_get_user_quota(
2929 conn, req,
2930 &state->setup, state->setup_count,
2931 &state->param, state->total_param,
2932 &state->data, state->total_data,
2933 state->max_data_return);
2934 END_PROFILE(NT_transact_get_user_quota);
2935 break;
2936 }
2937
2938 case NT_TRANSACT_SET_USER_QUOTA:
2939 {
2940 START_PROFILE(NT_transact_set_user_quota);
2941 call_nt_transact_set_user_quota(
2942 conn, req,
2943 &state->setup, state->setup_count,
2944 &state->param, state->total_param,
2945 &state->data, state->total_data,
2946 state->max_data_return);
2947 END_PROFILE(NT_transact_set_user_quota);
2948 break;
2949 }
2950 #endif /* HAVE_SYS_QUOTAS */
2951
2952 default:
2953 /* Error in request */
2954 DEBUG(0,("handle_nttrans: Unknown request %d in "
2955 "nttrans call\n", state->call));
2956 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2957 return;
2958 }
2959 return;
2960 }
2961
2962 /****************************************************************************
2963 Reply to a SMBNTtrans.
2964 ****************************************************************************/
2965
2966 void reply_nttrans(struct smb_request *req)
2967 {
2968 connection_struct *conn = req->conn;
2969 uint32_t pscnt;
2970 uint32_t psoff;
2971 uint32_t dscnt;
2972 uint32_t dsoff;
2973 uint16 function_code;
2974 NTSTATUS result;
2975 struct trans_state *state;
2976
2977 START_PROFILE(SMBnttrans);
2978
2979 if (req->wct < 19) {
2980 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2981 END_PROFILE(SMBnttrans);
2982 return;
2983 }
2984
2985 pscnt = IVAL(req->vwv+9, 1);
2986 psoff = IVAL(req->vwv+11, 1);
2987 dscnt = IVAL(req->vwv+13, 1);
2988 dsoff = IVAL(req->vwv+15, 1);
2989 function_code = SVAL(req->vwv+18, 0);
2990
2991 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2992 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2993 END_PROFILE(SMBnttrans);
2994 return;
2995 }
2996
2997 result = allow_new_trans(conn->pending_trans, req->mid);
2998 if (!NT_STATUS_IS_OK(result)) {
2999 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
3000 reply_nterror(req, result);
3001 END_PROFILE(SMBnttrans);
3002 return;
3003 }
3004
3005 if ((state = TALLOC_P(conn, struct trans_state)) == NULL) {
3006 reply_nterror(req, NT_STATUS_NO_MEMORY);
3007 END_PROFILE(SMBnttrans);
3008 return;
3009 }
3010
3011 state->cmd = SMBnttrans;
3012
3013 state->mid = req->mid;
3014 state->vuid = req->vuid;
3015 state->total_data = IVAL(req->vwv+3, 1);
3016 state->data = NULL;
3017 state->total_param = IVAL(req->vwv+1, 1);
3018 state->param = NULL;
3019 state->max_data_return = IVAL(req->vwv+7, 1);
3020 state->max_param_return = IVAL(req->vwv+5, 1);
3021
3022 /* setup count is in *words* */
3023 state->setup_count = 2*CVAL(req->vwv+17, 1);
3024 state->setup = NULL;
3025 state->call = function_code;
3026
3027 DEBUG(10, ("num_setup=%u, "
3028 "param_total=%u, this_param=%u, max_param=%u, "
3029 "data_total=%u, this_data=%u, max_data=%u, "
3030 "param_offset=%u, data_offset=%u\n",
3031 (unsigned)state->setup_count,
3032 (unsigned)state->total_param, (unsigned)pscnt,
3033 (unsigned)state->max_param_return,
3034 (unsigned)state->total_data, (unsigned)dscnt,
3035 (unsigned)state->max_data_return,
3036 (unsigned)psoff, (unsigned)dsoff));
3037
3038 /*
3039 * All nttrans messages we handle have smb_wct == 19 +
3040 * state->setup_count. Ensure this is so as a sanity check.
3041 */
3042
3043 if(req->wct != 19 + (state->setup_count/2)) {
3044 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
3045 req->wct, 19 + (state->setup_count/2)));
3046 goto bad_param;
3047 }
3048
3049 /* Don't allow more than 128mb for each value. */
3050 if ((state->total_data > (1024*1024*128)) ||
3051 (state->total_param > (1024*1024*128))) {
3052 reply_nterror(req, NT_STATUS_NO_MEMORY);
3053 END_PROFILE(SMBnttrans);
3054 return;
3055 }
3056
3057 if ((dscnt > state->total_data) || (pscnt > state->total_param))
3058 goto bad_param;
3059
3060 if (state->total_data) {
3061
3062 if (trans_oob(state->total_data, 0, dscnt)
3063 || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
3064 goto bad_param;
3065 }
3066
3067 /* Can't use talloc here, the core routines do realloc on the
3068 * params and data. */
3069 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
3070 DEBUG(0,("reply_nttrans: data malloc fail for %u "
3071 "bytes !\n", (unsigned int)state->total_data));
3072 TALLOC_FREE(state);
3073 reply_nterror(req, NT_STATUS_NO_MEMORY);
3074 END_PROFILE(SMBnttrans);
3075 return;
3076 }
3077
3078 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
3079 }
3080
3081 if (state->total_param) {
3082
3083 if (trans_oob(state->total_param, 0, pscnt)
3084 || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
3085 goto bad_param;
3086 }
3087
3088 /* Can't use talloc here, the core routines do realloc on the
3089 * params and data. */
3090 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
3091 DEBUG(0,("reply_nttrans: param malloc fail for %u "
3092 "bytes !\n", (unsigned int)state->total_param));
3093 SAFE_FREE(state->data);
3094 TALLOC_FREE(state);
3095 reply_nterror(req, NT_STATUS_NO_MEMORY);
3096 END_PROFILE(SMBnttrans);
3097 return;
3098 }
3099
3100 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
3101 }
3102
3103 state->received_data = dscnt;
3104 state->received_param = pscnt;
3105
3106 if(state->setup_count > 0) {
3107 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
3108 state->setup_count));
3109
3110 /*
3111 * No overflow possible here, state->setup_count is an
3112 * unsigned int, being filled by a single byte from
3113 * CVAL(req->vwv+13, 0) above. The cast in the comparison
3114 * below is not necessary, it's here to clarify things. The
3115 * validity of req->vwv and req->wct has been checked in
3116 * init_smb_request already.
3117 */
3118 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
3119 goto bad_param;
3120 }
3121
3122 state->setup = (uint16 *)TALLOC(state, state->setup_count);
3123 if (state->setup == NULL) {
3124 DEBUG(0,("reply_nttrans : Out of memory\n"));
3125 SAFE_FREE(state->data);
3126 SAFE_FREE(state->param);
3127 TALLOC_FREE(state);
3128 reply_nterror(req, NT_STATUS_NO_MEMORY);
3129 END_PROFILE(SMBnttrans);
3130 return;
3131 }
3132
3133 memcpy(state->setup, req->vwv+19, state->setup_count);
3134 dump_data(10, (uint8 *)state->setup, state->setup_count);
3135 }
3136
3137 if ((state->received_data == state->total_data) &&
3138 (state->received_param == state->total_param)) {
3139 handle_nttrans(conn, state, req);
3140 SAFE_FREE(state->param);
3141 SAFE_FREE(state->data);
3142 TALLOC_FREE(state);
3143 END_PROFILE(SMBnttrans);
3144 return;
3145 }
3146
3147 DLIST_ADD(conn->pending_trans, state);
3148
3149 /* We need to send an interim response then receive the rest
3150 of the parameter/data bytes */
3151 reply_outbuf(req, 0, 0);
3152 show_msg((char *)req->outbuf);
3153 END_PROFILE(SMBnttrans);
3154 return;
3155
3156 bad_param:
3157
3158 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
3159 SAFE_FREE(state->data);
3160 SAFE_FREE(state->param);
3161 TALLOC_FREE(state);
3162 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3163 END_PROFILE(SMBnttrans);
3164 return;
3165 }
3166
3167 /****************************************************************************
3168 Reply to a SMBnttranss
3169 ****************************************************************************/
3170
3171 void reply_nttranss(struct smb_request *req)
3172 {
3173 connection_struct *conn = req->conn;
3174 uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
3175 struct trans_state *state;
3176
3177 START_PROFILE(SMBnttranss);
3178
3179 show_msg((char *)req->inbuf);
3180
3181 if (req->wct < 18) {
3182 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3183 END_PROFILE(SMBnttranss);
3184 return;
3185 }
3186
3187 for (state = conn->pending_trans; state != NULL;
3188 state = state->next) {
3189 if (state->mid == req->mid) {
3190 break;
3191 }
3192 }
3193
3194 if ((state == NULL) || (state->cmd != SMBnttrans)) {
3195 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3196 END_PROFILE(SMBnttranss);
3197 return;
3198 }
3199
3200 /* Revise state->total_param and state->total_data in case they have
3201 changed downwards */
3202 if (IVAL(req->vwv+1, 1) < state->total_param) {
3203 state->total_param = IVAL(req->vwv+1, 1);
3204 }
3205 if (IVAL(req->vwv+3, 1) < state->total_data) {
3206 state->total_data = IVAL(req->vwv+3, 1);
3207 }
3208
3209 pcnt = IVAL(req->vwv+5, 1);
3210 poff = IVAL(req->vwv+7, 1);
3211 pdisp = IVAL(req->vwv+9, 1);
3212
3213 dcnt = IVAL(req->vwv+11, 1);
3214 doff = IVAL(req->vwv+13, 1);
3215 ddisp = IVAL(req->vwv+15, 1);
3216
3217 state->received_param += pcnt;
3218 state->received_data += dcnt;
3219
3220 if ((state->received_data > state->total_data) ||
3221 (state->received_param > state->total_param))
3222 goto bad_param;
3223
3224 if (pcnt) {
3225 if (trans_oob(state->total_param, pdisp, pcnt)
3226 || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
3227 goto bad_param;
3228 }
3229 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
3230 }
3231
3232 if (dcnt) {
3233 if (trans_oob(state->total_data, ddisp, dcnt)
3234 || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
3235 goto bad_param;
3236 }
3237 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
3238 }
3239
3240 if ((state->received_param < state->total_param) ||
3241 (state->received_data < state->total_data)) {
3242 END_PROFILE(SMBnttranss);
3243 return;
3244 }
3245
3246 handle_nttrans(conn, state, req);
3247
3248 DLIST_REMOVE(conn->pending_trans, state);
3249 SAFE_FREE(state->data);
3250 SAFE_FREE(state->param);
3251 TALLOC_FREE(state);
3252 END_PROFILE(SMBnttranss);
3253 return;
3254
3255 bad_param:
3256
3257 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
3258 DLIST_REMOVE(conn->pending_trans, state);
3259 SAFE_FREE(state->data);
3260 SAFE_FREE(state->param);
3261 TALLOC_FREE(state);
3262 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3263 END_PROFILE(SMBnttranss);
3264 return;
3265 }