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Proper fix for #6898 - Samba duplicates file content on appending. Pointed out by...
[Samba/gebeck_regimport.git] / source3 / smbd / nttrans.c
blob9e982911b9c7665cee3515e57999feb48f4854a8
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
24 extern const struct generic_mapping file_generic_mapping;
25
26 static char *nttrans_realloc(char **ptr, size_t size)
27 {
28 if (ptr==NULL) {
29 smb_panic("nttrans_realloc() called with NULL ptr");
30 }
31
32 *ptr = (char *)SMB_REALLOC(*ptr, size);
33 if(*ptr == NULL) {
34 return NULL;
35 }
36 memset(*ptr,'\0',size);
37 return *ptr;
38 }
39
40 /****************************************************************************
41 Send the required number of replies back.
42 We assume all fields other than the data fields are
43 set correctly for the type of call.
44 HACK ! Always assumes smb_setup field is zero.
45 ****************************************************************************/
46
47 void send_nt_replies(connection_struct *conn,
48 struct smb_request *req, NTSTATUS nt_error,
49 char *params, int paramsize,
50 char *pdata, int datasize)
51 {
52 int data_to_send = datasize;
53 int params_to_send = paramsize;
54 int useable_space;
55 char *pp = params;
56 char *pd = pdata;
57 int params_sent_thistime, data_sent_thistime, total_sent_thistime;
58 int alignment_offset = 3;
59 int data_alignment_offset = 0;
60 struct smbd_server_connection *sconn = smbd_server_conn;
61 int max_send = sconn->smb1.sessions.max_send;
62
63 /*
64 * If there genuinely are no parameters or data to send just send
65 * the empty packet.
66 */
67
68 if(params_to_send == 0 && data_to_send == 0) {
69 reply_outbuf(req, 18, 0);
70 if (NT_STATUS_V(nt_error)) {
71 error_packet_set((char *)req->outbuf,
72 0, 0, nt_error,
73 __LINE__,__FILE__);
74 }
75 show_msg((char *)req->outbuf);
76 if (!srv_send_smb(smbd_server_fd(),
77 (char *)req->outbuf,
78 true, req->seqnum+1,
79 IS_CONN_ENCRYPTED(conn),
80 &req->pcd)) {
81 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
82 }
83 TALLOC_FREE(req->outbuf);
84 return;
85 }
86
87 /*
88 * When sending params and data ensure that both are nicely aligned.
89 * Only do this alignment when there is also data to send - else
90 * can cause NT redirector problems.
91 */
92
93 if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
94 data_alignment_offset = 4 - (params_to_send % 4);
95 }
96
97 /*
98 * Space is bufsize minus Netbios over TCP header minus SMB header.
99 * The alignment_offset is to align the param bytes on a four byte
100 * boundary (2 bytes for data len, one byte pad).
101 * NT needs this to work correctly.
102 */
103
104 useable_space = max_send - (smb_size
105 + 2 * 18 /* wct */
106 + alignment_offset
107 + data_alignment_offset);
108
109 if (useable_space < 0) {
110 char *msg = talloc_asprintf(
111 talloc_tos(),
112 "send_nt_replies failed sanity useable_space = %d!!!",
113 useable_space);
114 DEBUG(0, ("%s\n", msg));
115 exit_server_cleanly(msg);
116 }
117
118 while (params_to_send || data_to_send) {
119
120 /*
121 * Calculate whether we will totally or partially fill this packet.
122 */
123
124 total_sent_thistime = params_to_send + data_to_send;
125
126 /*
127 * We can never send more than useable_space.
128 */
129
130 total_sent_thistime = MIN(total_sent_thistime, useable_space);
131
132 reply_outbuf(req, 18,
133 total_sent_thistime + alignment_offset
134 + data_alignment_offset);
135
136 /*
137 * We might have had SMBnttranss in req->inbuf, fix that.
138 */
139 SCVAL(req->outbuf, smb_com, SMBnttrans);
140
141 /*
142 * Set total params and data to be sent.
143 */
144
145 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
146 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
147
148 /*
149 * Calculate how many parameters and data we can fit into
150 * this packet. Parameters get precedence.
151 */
152
153 params_sent_thistime = MIN(params_to_send,useable_space);
154 data_sent_thistime = useable_space - params_sent_thistime;
155 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
156
157 SIVAL(req->outbuf, smb_ntr_ParameterCount,
158 params_sent_thistime);
159
160 if(params_sent_thistime == 0) {
161 SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
162 SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
163 } else {
164 /*
165 * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
166 * parameter bytes, however the first 4 bytes of outbuf are
167 * the Netbios over TCP header. Thus use smb_base() to subtract
168 * them from the calculation.
169 */
170
171 SIVAL(req->outbuf,smb_ntr_ParameterOffset,
172 ((smb_buf(req->outbuf)+alignment_offset)
173 - smb_base(req->outbuf)));
174 /*
175 * Absolute displacement of param bytes sent in this packet.
176 */
177
178 SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
179 pp - params);
180 }
181
182 /*
183 * Deal with the data portion.
184 */
185
186 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
187
188 if(data_sent_thistime == 0) {
189 SIVAL(req->outbuf,smb_ntr_DataOffset,0);
190 SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
191 } else {
192 /*
193 * The offset of the data bytes is the offset of the
194 * parameter bytes plus the number of parameters being sent this time.
195 */
196
197 SIVAL(req->outbuf, smb_ntr_DataOffset,
198 ((smb_buf(req->outbuf)+alignment_offset) -
199 smb_base(req->outbuf))
200 + params_sent_thistime + data_alignment_offset);
201 SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
202 }
203
204 /*
205 * Copy the param bytes into the packet.
206 */
207
208 if(params_sent_thistime) {
209 if (alignment_offset != 0) {
210 memset(smb_buf(req->outbuf), 0,
211 alignment_offset);
212 }
213 memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
214 params_sent_thistime);
215 }
216
217 /*
218 * Copy in the data bytes
219 */
220
221 if(data_sent_thistime) {
222 if (data_alignment_offset != 0) {
223 memset((smb_buf(req->outbuf)+alignment_offset+
224 params_sent_thistime), 0,
225 data_alignment_offset);
226 }
227 memcpy(smb_buf(req->outbuf)+alignment_offset
228 +params_sent_thistime+data_alignment_offset,
229 pd,data_sent_thistime);
230 }
231
232 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
233 params_sent_thistime, data_sent_thistime, useable_space));
234 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
235 params_to_send, data_to_send, paramsize, datasize));
236
237 if (NT_STATUS_V(nt_error)) {
238 error_packet_set((char *)req->outbuf,
239 0, 0, nt_error,
240 __LINE__,__FILE__);
241 }
242
243 /* Send the packet */
244 show_msg((char *)req->outbuf);
245 if (!srv_send_smb(smbd_server_fd(),
246 (char *)req->outbuf,
247 true, req->seqnum+1,
248 IS_CONN_ENCRYPTED(conn),
249 &req->pcd)) {
250 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
251 }
252
253 TALLOC_FREE(req->outbuf);
254
255 pp += params_sent_thistime;
256 pd += data_sent_thistime;
257
258 params_to_send -= params_sent_thistime;
259 data_to_send -= data_sent_thistime;
260
261 /*
262 * Sanity check
263 */
264
265 if(params_to_send < 0 || data_to_send < 0) {
266 DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
267 params_to_send, data_to_send));
268 exit_server_cleanly("send_nt_replies: internal error");
269 }
270 }
271 }
272
273 /****************************************************************************
274 Reply to an NT create and X call on a pipe
275 ****************************************************************************/
276
277 static void nt_open_pipe(char *fname, connection_struct *conn,
278 struct smb_request *req, int *ppnum)
279 {
280 files_struct *fsp;
281 NTSTATUS status;
282
283 DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
284
285 /* Strip \\ off the name. */
286 fname++;
287
288 status = open_np_file(req, fname, &fsp);
289 if (!NT_STATUS_IS_OK(status)) {
290 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
291 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
292 ERRDOS, ERRbadpipe);
293 return;
294 }
295 reply_nterror(req, status);
296 return;
297 }
298
299 *ppnum = fsp->fnum;
300 return;
301 }
302
303 /****************************************************************************
304 Reply to an NT create and X call for pipes.
305 ****************************************************************************/
306
307 static void do_ntcreate_pipe_open(connection_struct *conn,
308 struct smb_request *req)
309 {
310 char *fname = NULL;
311 int pnum = -1;
312 char *p = NULL;
313 uint32 flags = IVAL(req->vwv+3, 1);
314 TALLOC_CTX *ctx = talloc_tos();
315
316 srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
317
318 if (!fname) {
319 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
320 ERRDOS, ERRbadpipe);
321 return;
322 }
323 nt_open_pipe(fname, conn, req, &pnum);
324
325 if (req->outbuf) {
326 /* error reply */
327 return;
328 }
329
330 /*
331 * Deal with pipe return.
332 */
333
334 if (flags & EXTENDED_RESPONSE_REQUIRED) {
335 /* This is very strange. We
336 * return 50 words, but only set
337 * the wcnt to 42 ? It's definately
338 * what happens on the wire....
339 */
340 reply_outbuf(req, 50, 0);
341 SCVAL(req->outbuf,smb_wct,42);
342 } else {
343 reply_outbuf(req, 34, 0);
344 }
345
346 p = (char *)req->outbuf + smb_vwv2;
347 p++;
348 SSVAL(p,0,pnum);
349 p += 2;
350 SIVAL(p,0,FILE_WAS_OPENED);
351 p += 4;
352 p += 32;
353 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
354 p += 20;
355 /* File type. */
356 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
357 /* Device state. */
358 SSVAL(p,2, 0x5FF); /* ? */
359 p += 4;
360
361 if (flags & EXTENDED_RESPONSE_REQUIRED) {
362 p += 25;
363 SIVAL(p,0,FILE_GENERIC_ALL);
364 /*
365 * For pipes W2K3 seems to return
366 * 0x12019B next.
367 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
368 */
369 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
370 }
371
372 DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
373
374 chain_reply(req);
375 }
376
377 /****************************************************************************
378 Reply to an NT create and X call.
379 ****************************************************************************/
380
381 void reply_ntcreate_and_X(struct smb_request *req)
382 {
383 connection_struct *conn = req->conn;
384 struct smb_filename *smb_fname = NULL;
385 char *fname = NULL;
386 uint32 flags;
387 uint32 access_mask;
388 uint32 file_attributes;
389 uint32 share_access;
390 uint32 create_disposition;
391 uint32 create_options;
392 uint16 root_dir_fid;
393 uint64_t allocation_size;
394 /* Breakout the oplock request bits so we can set the
395 reply bits separately. */
396 uint32 fattr=0;
397 SMB_OFF_T file_len = 0;
398 int info = 0;
399 files_struct *fsp = NULL;
400 char *p = NULL;
401 struct timespec create_timespec;
402 struct timespec c_timespec;
403 struct timespec a_timespec;
404 struct timespec m_timespec;
405 struct timespec write_time_ts;
406 NTSTATUS status;
407 int oplock_request;
408 uint8_t oplock_granted = NO_OPLOCK_RETURN;
409 TALLOC_CTX *ctx = talloc_tos();
410
411 START_PROFILE(SMBntcreateX);
412
413 if (req->wct < 24) {
414 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
415 return;
416 }
417
418 flags = IVAL(req->vwv+3, 1);
419 access_mask = IVAL(req->vwv+7, 1);
420 file_attributes = IVAL(req->vwv+13, 1);
421 share_access = IVAL(req->vwv+15, 1);
422 create_disposition = IVAL(req->vwv+17, 1);
423 create_options = IVAL(req->vwv+19, 1);
424 root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
425
426 allocation_size = (uint64_t)IVAL(req->vwv+9, 1);
427 #ifdef LARGE_SMB_OFF_T
428 allocation_size |= (((uint64_t)IVAL(req->vwv+11, 1)) << 32);
429 #endif
430
431 srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
432 STR_TERMINATE, &status);
433
434 if (!NT_STATUS_IS_OK(status)) {
435 reply_nterror(req, status);
436 goto out;
437 }
438
439 DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
440 "file_attributes = 0x%x, share_access = 0x%x, "
441 "create_disposition = 0x%x create_options = 0x%x "
442 "root_dir_fid = 0x%x, fname = %s\n",
443 (unsigned int)flags,
444 (unsigned int)access_mask,
445 (unsigned int)file_attributes,
446 (unsigned int)share_access,
447 (unsigned int)create_disposition,
448 (unsigned int)create_options,
449 (unsigned int)root_dir_fid,
450 fname));
451
452 /*
453 * we need to remove ignored bits when they come directly from the client
454 * because we reuse some of them for internal stuff
455 */
456 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
457
458 /*
459 * If it's an IPC, use the pipe handler.
460 */
461
462 if (IS_IPC(conn)) {
463 if (lp_nt_pipe_support()) {
464 do_ntcreate_pipe_open(conn, req);
465 goto out;
466 }
467 reply_doserror(req, ERRDOS, ERRnoaccess);
468 goto out;
469 }
470
471 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
472 if (oplock_request) {
473 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
474 ? BATCH_OPLOCK : 0;
475 }
476
477 status = filename_convert(ctx,
478 conn,
479 req->flags2 & FLAGS2_DFS_PATHNAMES,
480 fname,
481 (file_attributes & FILE_FLAG_POSIX_SEMANTICS) ?
482 UCF_POSIX_PATHNAMES : 0,
483 NULL,
484 &smb_fname);
485
486 if (!NT_STATUS_IS_OK(status)) {
487 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
488 reply_botherror(req,
489 NT_STATUS_PATH_NOT_COVERED,
490 ERRSRV, ERRbadpath);
491 goto out;
492 }
493 reply_nterror(req, status);
494 goto out;
495 }
496
497 /*
498 * Bug #6898 - clients using Windows opens should
499 * never be able to set this attribute into the
500 * VFS.
501 */
502 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
503
504 status = SMB_VFS_CREATE_FILE(
505 conn, /* conn */
506 req, /* req */
507 root_dir_fid, /* root_dir_fid */
508 smb_fname, /* fname */
509 access_mask, /* access_mask */
510 share_access, /* share_access */
511 create_disposition, /* create_disposition*/
512 create_options, /* create_options */
513 file_attributes, /* file_attributes */
514 oplock_request, /* oplock_request */
515 allocation_size, /* allocation_size */
516 NULL, /* sd */
517 NULL, /* ea_list */
518 &fsp, /* result */
519 &info); /* pinfo */
520
521 if (!NT_STATUS_IS_OK(status)) {
522 if (open_was_deferred(req->mid)) {
523 /* We have re-scheduled this call, no error. */
524 goto out;
525 }
526 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_COLLISION)) {
527 reply_botherror(req, status, ERRDOS, ERRfilexists);
528 }
529 else {
530 reply_nterror(req, status);
531 }
532 goto out;
533 }
534
535 /* Ensure we're pointing at the correct stat struct. */
536 TALLOC_FREE(smb_fname);
537 smb_fname = fsp->fsp_name;
538
539 /*
540 * If the caller set the extended oplock request bit
541 * and we granted one (by whatever means) - set the
542 * correct bit for extended oplock reply.
543 */
544
545 if (oplock_request &&
546 (lp_fake_oplocks(SNUM(conn))
547 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
548
549 /*
550 * Exclusive oplock granted
551 */
552
553 if (flags & REQUEST_BATCH_OPLOCK) {
554 oplock_granted = BATCH_OPLOCK_RETURN;
555 } else {
556 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
557 }
558 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
559 oplock_granted = LEVEL_II_OPLOCK_RETURN;
560 } else {
561 oplock_granted = NO_OPLOCK_RETURN;
562 }
563
564 file_len = smb_fname->st.st_ex_size;
565
566 if (flags & EXTENDED_RESPONSE_REQUIRED) {
567 /* This is very strange. We
568 * return 50 words, but only set
569 * the wcnt to 42 ? It's definately
570 * what happens on the wire....
571 */
572 reply_outbuf(req, 50, 0);
573 SCVAL(req->outbuf,smb_wct,42);
574 } else {
575 reply_outbuf(req, 34, 0);
576 }
577
578 p = (char *)req->outbuf + smb_vwv2;
579
580 SCVAL(p, 0, oplock_granted);
581
582 p++;
583 SSVAL(p,0,fsp->fnum);
584 p += 2;
585 if ((create_disposition == FILE_SUPERSEDE)
586 && (info == FILE_WAS_OVERWRITTEN)) {
587 SIVAL(p,0,FILE_WAS_SUPERSEDED);
588 } else {
589 SIVAL(p,0,info);
590 }
591 p += 4;
592
593 fattr = dos_mode(conn, smb_fname);
594 if (fattr == 0) {
595 fattr = FILE_ATTRIBUTE_NORMAL;
596 }
597
598 /* Deal with other possible opens having a modified
599 write time. JRA. */
600 ZERO_STRUCT(write_time_ts);
601 get_file_infos(fsp->file_id, NULL, &write_time_ts);
602 if (!null_timespec(write_time_ts)) {
603 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
604 }
605
606 /* Create time. */
607 create_timespec = get_create_timespec(conn, fsp, smb_fname);
608 a_timespec = smb_fname->st.st_ex_atime;
609 m_timespec = smb_fname->st.st_ex_mtime;
610 c_timespec = get_change_timespec(conn, fsp, smb_fname);
611
612 if (lp_dos_filetime_resolution(SNUM(conn))) {
613 dos_filetime_timespec(&create_timespec);
614 dos_filetime_timespec(&a_timespec);
615 dos_filetime_timespec(&m_timespec);
616 dos_filetime_timespec(&c_timespec);
617 }
618
619 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
620 p += 8;
621 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
622 p += 8;
623 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
624 p += 8;
625 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
626 p += 8;
627 SIVAL(p,0,fattr); /* File Attributes. */
628 p += 4;
629 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
630 p += 8;
631 SOFF_T(p,0,file_len);
632 p += 8;
633 if (flags & EXTENDED_RESPONSE_REQUIRED) {
634 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
635 size_t num_names = 0;
636 unsigned int num_streams;
637 struct stream_struct *streams = NULL;
638
639 /* Do we have any EA's ? */
640 status = get_ea_names_from_file(ctx, conn, fsp,
641 smb_fname->base_name, NULL, &num_names);
642 if (NT_STATUS_IS_OK(status) && num_names) {
643 file_status &= ~NO_EAS;
644 }
645 status = SMB_VFS_STREAMINFO(conn, NULL, smb_fname->base_name, ctx,
646 &num_streams, &streams);
647 /* There is always one stream, ::$DATA. */
648 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
649 file_status &= ~NO_SUBSTREAMS;
650 }
651 TALLOC_FREE(streams);
652 SSVAL(p,2,file_status);
653 }
654 p += 4;
655 SCVAL(p,0,fsp->is_directory ? 1 : 0);
656
657 if (flags & EXTENDED_RESPONSE_REQUIRED) {
658 uint32 perms = 0;
659 p += 25;
660 if (fsp->is_directory ||
661 can_write_to_file(conn, smb_fname)) {
662 perms = FILE_GENERIC_ALL;
663 } else {
664 perms = FILE_GENERIC_READ|FILE_EXECUTE;
665 }
666 SIVAL(p,0,perms);
667 }
668
669 DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
670 fsp->fnum, smb_fname_str_dbg(smb_fname)));
671
672 chain_reply(req);
673 out:
674 END_PROFILE(SMBntcreateX);
675 return;
676 }
677
678 /****************************************************************************
679 Reply to a NT_TRANSACT_CREATE call to open a pipe.
680 ****************************************************************************/
681
682 static void do_nt_transact_create_pipe(connection_struct *conn,
683 struct smb_request *req,
684 uint16 **ppsetup, uint32 setup_count,
685 char **ppparams, uint32 parameter_count,
686 char **ppdata, uint32 data_count)
687 {
688 char *fname = NULL;
689 char *params = *ppparams;
690 int pnum = -1;
691 char *p = NULL;
692 NTSTATUS status;
693 size_t param_len;
694 uint32 flags;
695 TALLOC_CTX *ctx = talloc_tos();
696
697 /*
698 * Ensure minimum number of parameters sent.
699 */
700
701 if(parameter_count < 54) {
702 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
703 reply_doserror(req, ERRDOS, ERRnoaccess);
704 return;
705 }
706
707 flags = IVAL(params,0);
708
709 srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
710 parameter_count-53, STR_TERMINATE,
711 &status);
712 if (!NT_STATUS_IS_OK(status)) {
713 reply_nterror(req, status);
714 return;
715 }
716
717 nt_open_pipe(fname, conn, req, &pnum);
718
719 if (req->outbuf) {
720 /* Error return */
721 return;
722 }
723
724 /* Realloc the size of parameters and data we will return */
725 if (flags & EXTENDED_RESPONSE_REQUIRED) {
726 /* Extended response is 32 more byyes. */
727 param_len = 101;
728 } else {
729 param_len = 69;
730 }
731 params = nttrans_realloc(ppparams, param_len);
732 if(params == NULL) {
733 reply_doserror(req, ERRDOS, ERRnomem);
734 return;
735 }
736
737 p = params;
738 SCVAL(p,0,NO_OPLOCK_RETURN);
739
740 p += 2;
741 SSVAL(p,0,pnum);
742 p += 2;
743 SIVAL(p,0,FILE_WAS_OPENED);
744 p += 8;
745
746 p += 32;
747 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
748 p += 20;
749 /* File type. */
750 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
751 /* Device state. */
752 SSVAL(p,2, 0x5FF); /* ? */
753 p += 4;
754
755 if (flags & EXTENDED_RESPONSE_REQUIRED) {
756 p += 25;
757 SIVAL(p,0,FILE_GENERIC_ALL);
758 /*
759 * For pipes W2K3 seems to return
760 * 0x12019B next.
761 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
762 */
763 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
764 }
765
766 DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
767
768 /* Send the required number of replies */
769 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
770
771 return;
772 }
773
774 /****************************************************************************
775 Internal fn to set security descriptors.
776 ****************************************************************************/
777
778 static NTSTATUS set_sd(files_struct *fsp, uint8 *data, uint32 sd_len,
779 uint32 security_info_sent)
780 {
781 SEC_DESC *psd = NULL;
782 NTSTATUS status;
783
784 if (sd_len == 0 || !lp_nt_acl_support(SNUM(fsp->conn))) {
785 return NT_STATUS_OK;
786 }
787
788 status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
789
790 if (!NT_STATUS_IS_OK(status)) {
791 return status;
792 }
793
794 if (psd->owner_sid == NULL) {
795 security_info_sent &= ~OWNER_SECURITY_INFORMATION;
796 }
797 if (psd->group_sid == NULL) {
798 security_info_sent &= ~GROUP_SECURITY_INFORMATION;
799 }
800
801 /* Convert all the generic bits. */
802 security_acl_map_generic(psd->dacl, &file_generic_mapping);
803 security_acl_map_generic(psd->sacl, &file_generic_mapping);
804
805 if (DEBUGLEVEL >= 10) {
806 DEBUG(10,("set_sd for file %s\n", fsp_str_dbg(fsp)));
807 NDR_PRINT_DEBUG(security_descriptor, psd);
808 }
809
810 status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
811
812 TALLOC_FREE(psd);
813
814 return status;
815 }
816
817 /****************************************************************************
818 Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
819 ****************************************************************************/
820
821 struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
822 {
823 struct ea_list *ea_list_head = NULL;
824 size_t offset = 0;
825
826 if (data_size < 4) {
827 return NULL;
828 }
829
830 while (offset + 4 <= data_size) {
831 size_t next_offset = IVAL(pdata,offset);
832 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
833
834 if (!eal) {
835 return NULL;
836 }
837
838 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
839 if (next_offset == 0) {
840 break;
841 }
842 offset += next_offset;
843 }
844
845 return ea_list_head;
846 }
847
848 /****************************************************************************
849 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
850 ****************************************************************************/
851
852 static void call_nt_transact_create(connection_struct *conn,
853 struct smb_request *req,
854 uint16 **ppsetup, uint32 setup_count,
855 char **ppparams, uint32 parameter_count,
856 char **ppdata, uint32 data_count,
857 uint32 max_data_count)
858 {
859 struct smb_filename *smb_fname = NULL;
860 char *fname = NULL;
861 char *params = *ppparams;
862 char *data = *ppdata;
863 /* Breakout the oplock request bits so we can set the reply bits separately. */
864 uint32 fattr=0;
865 SMB_OFF_T file_len = 0;
866 int info = 0;
867 files_struct *fsp = NULL;
868 char *p = NULL;
869 uint32 flags;
870 uint32 access_mask;
871 uint32 file_attributes;
872 uint32 share_access;
873 uint32 create_disposition;
874 uint32 create_options;
875 uint32 sd_len;
876 struct security_descriptor *sd = NULL;
877 uint32 ea_len;
878 uint16 root_dir_fid;
879 struct timespec create_timespec;
880 struct timespec c_timespec;
881 struct timespec a_timespec;
882 struct timespec m_timespec;
883 struct timespec write_time_ts;
884 struct ea_list *ea_list = NULL;
885 NTSTATUS status;
886 size_t param_len;
887 uint64_t allocation_size;
888 int oplock_request;
889 uint8_t oplock_granted;
890 TALLOC_CTX *ctx = talloc_tos();
891
892 DEBUG(5,("call_nt_transact_create\n"));
893
894 /*
895 * If it's an IPC, use the pipe handler.
896 */
897
898 if (IS_IPC(conn)) {
899 if (lp_nt_pipe_support()) {
900 do_nt_transact_create_pipe(
901 conn, req,
902 ppsetup, setup_count,
903 ppparams, parameter_count,
904 ppdata, data_count);
905 goto out;
906 }
907 reply_doserror(req, ERRDOS, ERRnoaccess);
908 goto out;
909 }
910
911 /*
912 * Ensure minimum number of parameters sent.
913 */
914
915 if(parameter_count < 54) {
916 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
917 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
918 goto out;
919 }
920
921 flags = IVAL(params,0);
922 access_mask = IVAL(params,8);
923 file_attributes = IVAL(params,20);
924 share_access = IVAL(params,24);
925 create_disposition = IVAL(params,28);
926 create_options = IVAL(params,32);
927 sd_len = IVAL(params,36);
928 ea_len = IVAL(params,40);
929 root_dir_fid = (uint16)IVAL(params,4);
930 allocation_size = (uint64_t)IVAL(params,12);
931 #ifdef LARGE_SMB_OFF_T
932 allocation_size |= (((uint64_t)IVAL(params,16)) << 32);
933 #endif
934
935 /*
936 * we need to remove ignored bits when they come directly from the client
937 * because we reuse some of them for internal stuff
938 */
939 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
940
941 /* Ensure the data_len is correct for the sd and ea values given. */
942 if ((ea_len + sd_len > data_count)
943 || (ea_len > data_count) || (sd_len > data_count)
944 || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
945 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
946 "%u, data_count = %u\n", (unsigned int)ea_len,
947 (unsigned int)sd_len, (unsigned int)data_count));
948 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
949 goto out;
950 }
951
952 if (sd_len) {
953 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
954 sd_len));
955
956 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
957 &sd);
958 if (!NT_STATUS_IS_OK(status)) {
959 DEBUG(10, ("call_nt_transact_create: "
960 "unmarshall_sec_desc failed: %s\n",
961 nt_errstr(status)));
962 reply_nterror(req, status);
963 goto out;
964 }
965 }
966
967 if (ea_len) {
968 if (!lp_ea_support(SNUM(conn))) {
969 DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
970 "EA's not supported.\n",
971 (unsigned int)ea_len));
972 reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
973 goto out;
974 }
975
976 if (ea_len < 10) {
977 DEBUG(10,("call_nt_transact_create - ea_len = %u - "
978 "too small (should be more than 10)\n",
979 (unsigned int)ea_len ));
980 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
981 goto out;
982 }
983
984 /* We have already checked that ea_len <= data_count here. */
985 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
986 ea_len);
987 if (ea_list == NULL) {
988 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
989 goto out;
990 }
991 }
992
993 srvstr_get_path(ctx, params, req->flags2, &fname,
994 params+53, parameter_count-53,
995 STR_TERMINATE, &status);
996 if (!NT_STATUS_IS_OK(status)) {
997 reply_nterror(req, status);
998 goto out;
999 }
1000
1001 status = filename_convert(ctx,
1002 conn,
1003 req->flags2 & FLAGS2_DFS_PATHNAMES,
1004 fname,
1005 (file_attributes & FILE_FLAG_POSIX_SEMANTICS) ?
1006 UCF_POSIX_PATHNAMES : 0,
1007 NULL,
1008 &smb_fname);
1009
1010 if (!NT_STATUS_IS_OK(status)) {
1011 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1012 reply_botherror(req,
1013 NT_STATUS_PATH_NOT_COVERED,
1014 ERRSRV, ERRbadpath);
1015 goto out;
1016 }
1017 reply_nterror(req, status);
1018 goto out;
1019 }
1020
1021 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1022 if (oplock_request) {
1023 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1024 ? BATCH_OPLOCK : 0;
1025 }
1026
1027 /*
1028 * Bug #6898 - clients using Windows opens should
1029 * never be able to set this attribute into the
1030 * VFS.
1031 */
1032 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
1033
1034 status = SMB_VFS_CREATE_FILE(
1035 conn, /* conn */
1036 req, /* req */
1037 root_dir_fid, /* root_dir_fid */
1038 smb_fname, /* fname */
1039 access_mask, /* access_mask */
1040 share_access, /* share_access */
1041 create_disposition, /* create_disposition*/
1042 create_options, /* create_options */
1043 file_attributes, /* file_attributes */
1044 oplock_request, /* oplock_request */
1045 allocation_size, /* allocation_size */
1046 sd, /* sd */
1047 ea_list, /* ea_list */
1048 &fsp, /* result */
1049 &info); /* pinfo */
1050
1051 if(!NT_STATUS_IS_OK(status)) {
1052 if (open_was_deferred(req->mid)) {
1053 /* We have re-scheduled this call, no error. */
1054 return;
1055 }
1056 reply_openerror(req, status);
1057 goto out;
1058 }
1059
1060 /* Ensure we're pointing at the correct stat struct. */
1061 TALLOC_FREE(smb_fname);
1062 smb_fname = fsp->fsp_name;
1063
1064 /*
1065 * If the caller set the extended oplock request bit
1066 * and we granted one (by whatever means) - set the
1067 * correct bit for extended oplock reply.
1068 */
1069
1070 if (oplock_request &&
1071 (lp_fake_oplocks(SNUM(conn))
1072 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1073
1074 /*
1075 * Exclusive oplock granted
1076 */
1077
1078 if (flags & REQUEST_BATCH_OPLOCK) {
1079 oplock_granted = BATCH_OPLOCK_RETURN;
1080 } else {
1081 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1082 }
1083 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1084 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1085 } else {
1086 oplock_granted = NO_OPLOCK_RETURN;
1087 }
1088
1089 file_len = smb_fname->st.st_ex_size;
1090
1091 /* Realloc the size of parameters and data we will return */
1092 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1093 /* Extended response is 32 more byyes. */
1094 param_len = 101;
1095 } else {
1096 param_len = 69;
1097 }
1098 params = nttrans_realloc(ppparams, param_len);
1099 if(params == NULL) {
1100 reply_doserror(req, ERRDOS, ERRnomem);
1101 goto out;
1102 }
1103
1104 p = params;
1105 SCVAL(p, 0, oplock_granted);
1106
1107 p += 2;
1108 SSVAL(p,0,fsp->fnum);
1109 p += 2;
1110 if ((create_disposition == FILE_SUPERSEDE)
1111 && (info == FILE_WAS_OVERWRITTEN)) {
1112 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1113 } else {
1114 SIVAL(p,0,info);
1115 }
1116 p += 8;
1117
1118 fattr = dos_mode(conn, smb_fname);
1119 if (fattr == 0) {
1120 fattr = FILE_ATTRIBUTE_NORMAL;
1121 }
1122
1123 /* Deal with other possible opens having a modified
1124 write time. JRA. */
1125 ZERO_STRUCT(write_time_ts);
1126 get_file_infos(fsp->file_id, NULL, &write_time_ts);
1127 if (!null_timespec(write_time_ts)) {
1128 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
1129 }
1130
1131 /* Create time. */
1132 create_timespec = get_create_timespec(conn, fsp, smb_fname);
1133 a_timespec = smb_fname->st.st_ex_atime;
1134 m_timespec = smb_fname->st.st_ex_mtime;
1135 c_timespec = get_change_timespec(conn, fsp, smb_fname);
1136
1137 if (lp_dos_filetime_resolution(SNUM(conn))) {
1138 dos_filetime_timespec(&create_timespec);
1139 dos_filetime_timespec(&a_timespec);
1140 dos_filetime_timespec(&m_timespec);
1141 dos_filetime_timespec(&c_timespec);
1142 }
1143
1144 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
1145 p += 8;
1146 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
1147 p += 8;
1148 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
1149 p += 8;
1150 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
1151 p += 8;
1152 SIVAL(p,0,fattr); /* File Attributes. */
1153 p += 4;
1154 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1155 p += 8;
1156 SOFF_T(p,0,file_len);
1157 p += 8;
1158 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1159 SSVAL(p,2,0x7);
1160 }
1161 p += 4;
1162 SCVAL(p,0,fsp->is_directory ? 1 : 0);
1163
1164 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1165 uint32 perms = 0;
1166 p += 25;
1167 if (fsp->is_directory ||
1168 can_write_to_file(conn, smb_fname)) {
1169 perms = FILE_GENERIC_ALL;
1170 } else {
1171 perms = FILE_GENERIC_READ|FILE_EXECUTE;
1172 }
1173 SIVAL(p,0,perms);
1174 }
1175
1176 DEBUG(5,("call_nt_transact_create: open name = %s\n",
1177 smb_fname_str_dbg(smb_fname)));
1178
1179 /* Send the required number of replies */
1180 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1181 out:
1182 return;
1183 }
1184
1185 /****************************************************************************
1186 Reply to a NT CANCEL request.
1187 conn POINTER CAN BE NULL HERE !
1188 ****************************************************************************/
1189
1190 void reply_ntcancel(struct smb_request *req)
1191 {
1192 /*
1193 * Go through and cancel any pending change notifies.
1194 */
1195
1196 START_PROFILE(SMBntcancel);
1197 srv_cancel_sign_response(smbd_server_conn);
1198 remove_pending_change_notify_requests_by_mid(req->mid);
1199 remove_pending_lock_requests_by_mid(req->mid);
1200
1201 DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", req->mid));
1202
1203 END_PROFILE(SMBntcancel);
1204 return;
1205 }
1206
1207 /****************************************************************************
1208 Copy a file.
1209 ****************************************************************************/
1210
1211 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1212 connection_struct *conn,
1213 struct smb_request *req,
1214 struct smb_filename *smb_fname_src,
1215 struct smb_filename *smb_fname_dst,
1216 uint32 attrs)
1217 {
1218 files_struct *fsp1,*fsp2;
1219 uint32 fattr;
1220 int info;
1221 SMB_OFF_T ret=-1;
1222 NTSTATUS status = NT_STATUS_OK;
1223 char *parent;
1224
1225 if (!CAN_WRITE(conn)) {
1226 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1227 goto out;
1228 }
1229
1230 /* Source must already exist. */
1231 if (!VALID_STAT(smb_fname_src->st)) {
1232 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1233 goto out;
1234 }
1235
1236 /* Ensure attributes match. */
1237 fattr = dos_mode(conn, smb_fname_src);
1238 if ((fattr & ~attrs) & (aHIDDEN | aSYSTEM)) {
1239 status = NT_STATUS_NO_SUCH_FILE;
1240 goto out;
1241 }
1242
1243 /* Disallow if dst file already exists. */
1244 if (VALID_STAT(smb_fname_dst->st)) {
1245 status = NT_STATUS_OBJECT_NAME_COLLISION;
1246 goto out;
1247 }
1248
1249 /* No links from a directory. */
1250 if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1251 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1252 goto out;
1253 }
1254
1255 DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1256 smb_fname_str_dbg(smb_fname_src),
1257 smb_fname_str_dbg(smb_fname_dst)));
1258
1259 status = SMB_VFS_CREATE_FILE(
1260 conn, /* conn */
1261 req, /* req */
1262 0, /* root_dir_fid */
1263 smb_fname_src, /* fname */
1264 FILE_READ_DATA, /* access_mask */
1265 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1266 FILE_SHARE_DELETE),
1267 FILE_OPEN, /* create_disposition*/
1268 0, /* create_options */
1269 FILE_ATTRIBUTE_NORMAL, /* file_attributes */
1270 NO_OPLOCK, /* oplock_request */
1271 0, /* allocation_size */
1272 NULL, /* sd */
1273 NULL, /* ea_list */
1274 &fsp1, /* result */
1275 &info); /* pinfo */
1276
1277 if (!NT_STATUS_IS_OK(status)) {
1278 goto out;
1279 }
1280
1281 status = SMB_VFS_CREATE_FILE(
1282 conn, /* conn */
1283 req, /* req */
1284 0, /* root_dir_fid */
1285 smb_fname_dst, /* fname */
1286 FILE_WRITE_DATA, /* access_mask */
1287 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1288 FILE_SHARE_DELETE),
1289 FILE_CREATE, /* create_disposition*/
1290 0, /* create_options */
1291 fattr, /* file_attributes */
1292 NO_OPLOCK, /* oplock_request */
1293 0, /* allocation_size */
1294 NULL, /* sd */
1295 NULL, /* ea_list */
1296 &fsp2, /* result */
1297 &info); /* pinfo */
1298
1299 if (!NT_STATUS_IS_OK(status)) {
1300 close_file(NULL, fsp1, ERROR_CLOSE);
1301 goto out;
1302 }
1303
1304 if (smb_fname_src->st.st_ex_size) {
1305 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1306 }
1307
1308 /*
1309 * As we are opening fsp1 read-only we only expect
1310 * an error on close on fsp2 if we are out of space.
1311 * Thus we don't look at the error return from the
1312 * close of fsp1.
1313 */
1314 close_file(NULL, fsp1, NORMAL_CLOSE);
1315
1316 /* Ensure the modtime is set correctly on the destination file. */
1317 set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1318
1319 status = close_file(NULL, fsp2, NORMAL_CLOSE);
1320
1321 /* Grrr. We have to do this as open_file_ntcreate adds aARCH when it
1322 creates the file. This isn't the correct thing to do in the copy
1323 case. JRA */
1324 if (!parent_dirname(talloc_tos(), smb_fname_dst->base_name, &parent,
1325 NULL)) {
1326 status = NT_STATUS_NO_MEMORY;
1327 goto out;
1328 }
1329 file_set_dosmode(conn, smb_fname_dst, fattr, parent, false);
1330 TALLOC_FREE(parent);
1331
1332 if (ret < (SMB_OFF_T)smb_fname_src->st.st_ex_size) {
1333 status = NT_STATUS_DISK_FULL;
1334 goto out;
1335 }
1336 out:
1337 if (!NT_STATUS_IS_OK(status)) {
1338 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1339 nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1340 smb_fname_str_dbg(smb_fname_dst)));
1341 }
1342
1343 return status;
1344 }
1345
1346 /****************************************************************************
1347 Reply to a NT rename request.
1348 ****************************************************************************/
1349
1350 void reply_ntrename(struct smb_request *req)
1351 {
1352 connection_struct *conn = req->conn;
1353 struct smb_filename *smb_fname_old = NULL;
1354 struct smb_filename *smb_fname_new = NULL;
1355 char *oldname = NULL;
1356 char *newname = NULL;
1357 const char *p;
1358 NTSTATUS status;
1359 bool src_has_wcard = False;
1360 bool dest_has_wcard = False;
1361 uint32 attrs;
1362 uint32_t ucf_flags_src = 0;
1363 uint32_t ucf_flags_dst = 0;
1364 uint16 rename_type;
1365 TALLOC_CTX *ctx = talloc_tos();
1366
1367 START_PROFILE(SMBntrename);
1368
1369 if (req->wct < 4) {
1370 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1371 goto out;
1372 }
1373
1374 attrs = SVAL(req->vwv+0, 0);
1375 rename_type = SVAL(req->vwv+1, 0);
1376
1377 p = (const char *)req->buf + 1;
1378 p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1379 &status, &src_has_wcard);
1380 if (!NT_STATUS_IS_OK(status)) {
1381 reply_nterror(req, status);
1382 goto out;
1383 }
1384
1385 if (ms_has_wild(oldname)) {
1386 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1387 goto out;
1388 }
1389
1390 p++;
1391 p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1392 &status, &dest_has_wcard);
1393 if (!NT_STATUS_IS_OK(status)) {
1394 reply_nterror(req, status);
1395 goto out;
1396 }
1397
1398 /* The newname must begin with a ':' if the oldname contains a ':'. */
1399 if (strchr_m(oldname, ':') && (newname[0] != ':')) {
1400 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1401 goto out;
1402 }
1403
1404 /*
1405 * If this is a rename operation, allow wildcards and save the
1406 * destination's last component.
1407 */
1408 if (rename_type == RENAME_FLAG_RENAME) {
1409 ucf_flags_src = UCF_COND_ALLOW_WCARD_LCOMP;
1410 ucf_flags_dst = UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1411 }
1412
1413 /* rename_internals() calls unix_convert(), so don't call it here. */
1414 status = filename_convert(ctx, conn,
1415 req->flags2 & FLAGS2_DFS_PATHNAMES,
1416 oldname,
1417 ucf_flags_src,
1418 NULL,
1419 &smb_fname_old);
1420 if (!NT_STATUS_IS_OK(status)) {
1421 if (NT_STATUS_EQUAL(status,
1422 NT_STATUS_PATH_NOT_COVERED)) {
1423 reply_botherror(req,
1424 NT_STATUS_PATH_NOT_COVERED,
1425 ERRSRV, ERRbadpath);
1426 goto out;
1427 }
1428 reply_nterror(req, status);
1429 goto out;
1430 }
1431
1432 status = filename_convert(ctx, conn,
1433 req->flags2 & FLAGS2_DFS_PATHNAMES,
1434 newname,
1435 ucf_flags_dst,
1436 &dest_has_wcard,
1437 &smb_fname_new);
1438 if (!NT_STATUS_IS_OK(status)) {
1439 if (NT_STATUS_EQUAL(status,
1440 NT_STATUS_PATH_NOT_COVERED)) {
1441 reply_botherror(req,
1442 NT_STATUS_PATH_NOT_COVERED,
1443 ERRSRV, ERRbadpath);
1444 goto out;
1445 }
1446 reply_nterror(req, status);
1447 goto out;
1448 }
1449
1450 DEBUG(3,("reply_ntrename: %s -> %s\n",
1451 smb_fname_str_dbg(smb_fname_old),
1452 smb_fname_str_dbg(smb_fname_new)));
1453
1454 switch(rename_type) {
1455 case RENAME_FLAG_RENAME:
1456 status = rename_internals(ctx, conn, req,
1457 smb_fname_old, smb_fname_new,
1458 attrs, False, src_has_wcard,
1459 dest_has_wcard,
1460 DELETE_ACCESS);
1461 break;
1462 case RENAME_FLAG_HARD_LINK:
1463 if (src_has_wcard || dest_has_wcard) {
1464 /* No wildcards. */
1465 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1466 } else {
1467 status = hardlink_internals(ctx, conn,
1468 smb_fname_old,
1469 smb_fname_new);
1470 }
1471 break;
1472 case RENAME_FLAG_COPY:
1473 if (src_has_wcard || dest_has_wcard) {
1474 /* No wildcards. */
1475 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1476 } else {
1477 status = copy_internals(ctx, conn, req,
1478 smb_fname_old,
1479 smb_fname_new,
1480 attrs);
1481 }
1482 break;
1483 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1484 status = NT_STATUS_INVALID_PARAMETER;
1485 break;
1486 default:
1487 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1488 break;
1489 }
1490
1491 if (!NT_STATUS_IS_OK(status)) {
1492 if (open_was_deferred(req->mid)) {
1493 /* We have re-scheduled this call. */
1494 goto out;
1495 }
1496
1497 reply_nterror(req, status);
1498 goto out;
1499 }
1500
1501 reply_outbuf(req, 0, 0);
1502 out:
1503 END_PROFILE(SMBntrename);
1504 return;
1505 }
1506
1507 /****************************************************************************
1508 Reply to a notify change - queue the request and
1509 don't allow a directory to be opened.
1510 ****************************************************************************/
1511
1512 static void smbd_smb1_notify_reply(struct smb_request *req,
1513 NTSTATUS error_code,
1514 uint8_t *buf, size_t len)
1515 {
1516 send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1517 }
1518
1519 static void call_nt_transact_notify_change(connection_struct *conn,
1520 struct smb_request *req,
1521 uint16 **ppsetup,
1522 uint32 setup_count,
1523 char **ppparams,
1524 uint32 parameter_count,
1525 char **ppdata, uint32 data_count,
1526 uint32 max_data_count,
1527 uint32 max_param_count)
1528 {
1529 uint16 *setup = *ppsetup;
1530 files_struct *fsp;
1531 uint32 filter;
1532 NTSTATUS status;
1533 bool recursive;
1534
1535 if(setup_count < 6) {
1536 reply_doserror(req, ERRDOS, ERRbadfunc);
1537 return;
1538 }
1539
1540 fsp = file_fsp(req, SVAL(setup,4));
1541 filter = IVAL(setup, 0);
1542 recursive = (SVAL(setup, 6) != 0) ? True : False;
1543
1544 DEBUG(3,("call_nt_transact_notify_change\n"));
1545
1546 if(!fsp) {
1547 reply_doserror(req, ERRDOS, ERRbadfid);
1548 return;
1549 }
1550
1551 {
1552 char *filter_string;
1553
1554 if (!(filter_string = notify_filter_string(NULL, filter))) {
1555 reply_nterror(req,NT_STATUS_NO_MEMORY);
1556 return;
1557 }
1558
1559 DEBUG(3,("call_nt_transact_notify_change: notify change "
1560 "called on %s, filter = %s, recursive = %d\n",
1561 fsp_str_dbg(fsp), filter_string, recursive));
1562
1563 TALLOC_FREE(filter_string);
1564 }
1565
1566 if((!fsp->is_directory) || (conn != fsp->conn)) {
1567 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1568 return;
1569 }
1570
1571 if (fsp->notify == NULL) {
1572
1573 status = change_notify_create(fsp, filter, recursive);
1574
1575 if (!NT_STATUS_IS_OK(status)) {
1576 DEBUG(10, ("change_notify_create returned %s\n",
1577 nt_errstr(status)));
1578 reply_nterror(req, status);
1579 return;
1580 }
1581 }
1582
1583 if (fsp->notify->num_changes != 0) {
1584
1585 /*
1586 * We've got changes pending, respond immediately
1587 */
1588
1589 /*
1590 * TODO: write a torture test to check the filtering behaviour
1591 * here.
1592 */
1593
1594 change_notify_reply(fsp->conn, req,
1595 NT_STATUS_OK,
1596 max_param_count,
1597 fsp->notify,
1598 smbd_smb1_notify_reply);
1599
1600 /*
1601 * change_notify_reply() above has independently sent its
1602 * results
1603 */
1604 return;
1605 }
1606
1607 /*
1608 * No changes pending, queue the request
1609 */
1610
1611 status = change_notify_add_request(req,
1612 max_param_count,
1613 filter,
1614 recursive, fsp,
1615 smbd_smb1_notify_reply);
1616 if (!NT_STATUS_IS_OK(status)) {
1617 reply_nterror(req, status);
1618 }
1619 return;
1620 }
1621
1622 /****************************************************************************
1623 Reply to an NT transact rename command.
1624 ****************************************************************************/
1625
1626 static void call_nt_transact_rename(connection_struct *conn,
1627 struct smb_request *req,
1628 uint16 **ppsetup, uint32 setup_count,
1629 char **ppparams, uint32 parameter_count,
1630 char **ppdata, uint32 data_count,
1631 uint32 max_data_count)
1632 {
1633 char *params = *ppparams;
1634 char *new_name = NULL;
1635 files_struct *fsp = NULL;
1636 bool dest_has_wcard = False;
1637 NTSTATUS status;
1638 TALLOC_CTX *ctx = talloc_tos();
1639
1640 if(parameter_count < 5) {
1641 reply_doserror(req, ERRDOS, ERRbadfunc);
1642 return;
1643 }
1644
1645 fsp = file_fsp(req, SVAL(params, 0));
1646 if (!check_fsp(conn, req, fsp)) {
1647 return;
1648 }
1649 srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1650 parameter_count - 4,
1651 STR_TERMINATE, &status, &dest_has_wcard);
1652 if (!NT_STATUS_IS_OK(status)) {
1653 reply_nterror(req, status);
1654 return;
1655 }
1656
1657 /*
1658 * W2K3 ignores this request as the RAW-RENAME test
1659 * demonstrates, so we do.
1660 */
1661 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1662
1663 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1664 fsp_str_dbg(fsp), new_name));
1665
1666 return;
1667 }
1668
1669 /******************************************************************************
1670 Fake up a completely empty SD.
1671 *******************************************************************************/
1672
1673 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
1674 {
1675 size_t sd_size;
1676
1677 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1678 if(!*ppsd) {
1679 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1680 return NT_STATUS_NO_MEMORY;
1681 }
1682
1683 return NT_STATUS_OK;
1684 }
1685
1686 /****************************************************************************
1687 Reply to query a security descriptor.
1688 ****************************************************************************/
1689
1690 static void call_nt_transact_query_security_desc(connection_struct *conn,
1691 struct smb_request *req,
1692 uint16 **ppsetup,
1693 uint32 setup_count,
1694 char **ppparams,
1695 uint32 parameter_count,
1696 char **ppdata,
1697 uint32 data_count,
1698 uint32 max_data_count)
1699 {
1700 char *params = *ppparams;
1701 char *data = *ppdata;
1702 SEC_DESC *psd = NULL;
1703 size_t sd_size;
1704 uint32 security_info_wanted;
1705 files_struct *fsp = NULL;
1706 NTSTATUS status;
1707 DATA_BLOB blob;
1708
1709 if(parameter_count < 8) {
1710 reply_doserror(req, ERRDOS, ERRbadfunc);
1711 return;
1712 }
1713
1714 fsp = file_fsp(req, SVAL(params,0));
1715 if(!fsp) {
1716 reply_doserror(req, ERRDOS, ERRbadfid);
1717 return;
1718 }
1719
1720 security_info_wanted = IVAL(params,4);
1721
1722 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
1723 "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
1724 (unsigned int)security_info_wanted));
1725
1726 params = nttrans_realloc(ppparams, 4);
1727 if(params == NULL) {
1728 reply_doserror(req, ERRDOS, ERRnomem);
1729 return;
1730 }
1731
1732 /*
1733 * Get the permissions to return.
1734 */
1735
1736 if (!lp_nt_acl_support(SNUM(conn))) {
1737 status = get_null_nt_acl(talloc_tos(), &psd);
1738 } else {
1739 status = SMB_VFS_FGET_NT_ACL(
1740 fsp, security_info_wanted, &psd);
1741 }
1742 if (!NT_STATUS_IS_OK(status)) {
1743 reply_nterror(req, status);
1744 return;
1745 }
1746
1747 /* If the SACL/DACL is NULL, but was requested, we mark that it is
1748 * present in the reply to match Windows behavior */
1749 if (psd->sacl == NULL &&
1750 security_info_wanted & SACL_SECURITY_INFORMATION)
1751 psd->type |= SEC_DESC_SACL_PRESENT;
1752 if (psd->dacl == NULL &&
1753 security_info_wanted & DACL_SECURITY_INFORMATION)
1754 psd->type |= SEC_DESC_DACL_PRESENT;
1755
1756 sd_size = ndr_size_security_descriptor(psd, NULL, 0);
1757
1758 DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %lu.\n",(unsigned long)sd_size));
1759
1760 if (DEBUGLEVEL >= 10) {
1761 DEBUG(10,("call_nt_transact_query_security_desc for file %s\n",
1762 fsp_str_dbg(fsp)));
1763 NDR_PRINT_DEBUG(security_descriptor, psd);
1764 }
1765
1766 SIVAL(params,0,(uint32)sd_size);
1767
1768 if (max_data_count < sd_size) {
1769 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1770 params, 4, *ppdata, 0);
1771 return;
1772 }
1773
1774 /*
1775 * Allocate the data we will point this at.
1776 */
1777
1778 data = nttrans_realloc(ppdata, sd_size);
1779 if(data == NULL) {
1780 reply_doserror(req, ERRDOS, ERRnomem);
1781 return;
1782 }
1783
1784 status = marshall_sec_desc(talloc_tos(), psd,
1785 &blob.data, &blob.length);
1786
1787 if (!NT_STATUS_IS_OK(status)) {
1788 reply_nterror(req, status);
1789 return;
1790 }
1791
1792 SMB_ASSERT(sd_size == blob.length);
1793 memcpy(data, blob.data, sd_size);
1794
1795 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
1796
1797 return;
1798 }
1799
1800 /****************************************************************************
1801 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
1802 ****************************************************************************/
1803
1804 static void call_nt_transact_set_security_desc(connection_struct *conn,
1805 struct smb_request *req,
1806 uint16 **ppsetup,
1807 uint32 setup_count,
1808 char **ppparams,
1809 uint32 parameter_count,
1810 char **ppdata,
1811 uint32 data_count,
1812 uint32 max_data_count)
1813 {
1814 char *params= *ppparams;
1815 char *data = *ppdata;
1816 files_struct *fsp = NULL;
1817 uint32 security_info_sent = 0;
1818 NTSTATUS status;
1819
1820 if(parameter_count < 8) {
1821 reply_doserror(req, ERRDOS, ERRbadfunc);
1822 return;
1823 }
1824
1825 if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
1826 reply_doserror(req, ERRDOS, ERRbadfid);
1827 return;
1828 }
1829
1830 if(!lp_nt_acl_support(SNUM(conn))) {
1831 goto done;
1832 }
1833
1834 security_info_sent = IVAL(params,4);
1835
1836 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
1837 fsp_str_dbg(fsp), (unsigned int)security_info_sent));
1838
1839 if (data_count == 0) {
1840 reply_doserror(req, ERRDOS, ERRnoaccess);
1841 return;
1842 }
1843
1844 status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
1845
1846 if (!NT_STATUS_IS_OK(status)) {
1847 reply_nterror(req, status);
1848 return;
1849 }
1850
1851 done:
1852 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1853 return;
1854 }
1855
1856 /****************************************************************************
1857 Reply to NT IOCTL
1858 ****************************************************************************/
1859
1860 static void call_nt_transact_ioctl(connection_struct *conn,
1861 struct smb_request *req,
1862 uint16 **ppsetup, uint32 setup_count,
1863 char **ppparams, uint32 parameter_count,
1864 char **ppdata, uint32 data_count,
1865 uint32 max_data_count)
1866 {
1867 uint32 function;
1868 uint16 fidnum;
1869 files_struct *fsp;
1870 uint8 isFSctl;
1871 uint8 compfilter;
1872 char *pdata = *ppdata;
1873
1874 if (setup_count != 8) {
1875 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
1876 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1877 return;
1878 }
1879
1880 function = IVAL(*ppsetup, 0);
1881 fidnum = SVAL(*ppsetup, 4);
1882 isFSctl = CVAL(*ppsetup, 6);
1883 compfilter = CVAL(*ppsetup, 7);
1884
1885 DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
1886 function, fidnum, isFSctl, compfilter));
1887
1888 fsp=file_fsp(req, fidnum);
1889 /* this check is done in each implemented function case for now
1890 because I don't want to break anything... --metze
1891 FSP_BELONGS_CONN(fsp,conn);*/
1892
1893 SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
1894
1895 switch (function) {
1896 case FSCTL_SET_SPARSE:
1897 /* pretend this succeeded - tho strictly we should
1898 mark the file sparse (if the local fs supports it)
1899 so we can know if we need to pre-allocate or not */
1900
1901 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum));
1902 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1903 return;
1904
1905 case FSCTL_CREATE_OR_GET_OBJECT_ID:
1906 {
1907 unsigned char objid[16];
1908
1909 /* This should return the object-id on this file.
1910 * I think I'll make this be the inode+dev. JRA.
1911 */
1912
1913 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
1914
1915 if (!fsp_belongs_conn(conn, req, fsp)) {
1916 return;
1917 }
1918
1919 data_count = 64;
1920 pdata = nttrans_realloc(ppdata, data_count);
1921 if (pdata == NULL) {
1922 reply_nterror(req, NT_STATUS_NO_MEMORY);
1923 return;
1924 }
1925
1926 /* For backwards compatibility only store the dev/inode. */
1927 push_file_id_16(pdata, &fsp->file_id);
1928 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
1929 push_file_id_16(pdata+32, &fsp->file_id);
1930 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
1931 pdata, data_count);
1932 return;
1933 }
1934
1935 case FSCTL_GET_REPARSE_POINT:
1936 /* pretend this fail - my winXP does it like this
1937 * --metze
1938 */
1939
1940 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1941 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1942 return;
1943
1944 case FSCTL_SET_REPARSE_POINT:
1945 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
1946 * --metze
1947 */
1948
1949 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1950 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1951 return;
1952
1953 case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
1954 {
1955 /*
1956 * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
1957 * and return their volume names. If max_data_count is 16, then it is just
1958 * asking for the number of volumes and length of the combined names.
1959 *
1960 * pdata is the data allocated by our caller, but that uses
1961 * total_data_count (which is 0 in our case) rather than max_data_count.
1962 * Allocate the correct amount and return the pointer to let
1963 * it be deallocated when we return.
1964 */
1965 SHADOW_COPY_DATA *shadow_data = NULL;
1966 TALLOC_CTX *shadow_mem_ctx = NULL;
1967 bool labels = False;
1968 uint32 labels_data_count = 0;
1969 uint32 i;
1970 char *cur_pdata;
1971
1972 if (!fsp_belongs_conn(conn, req, fsp)) {
1973 return;
1974 }
1975
1976 if (max_data_count < 16) {
1977 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
1978 max_data_count));
1979 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1980 return;
1981 }
1982
1983 if (max_data_count > 16) {
1984 labels = True;
1985 }
1986
1987 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
1988 if (shadow_mem_ctx == NULL) {
1989 DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
1990 reply_nterror(req, NT_STATUS_NO_MEMORY);
1991 return;
1992 }
1993
1994 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
1995 if (shadow_data == NULL) {
1996 DEBUG(0,("TALLOC_ZERO() failed!\n"));
1997 talloc_destroy(shadow_mem_ctx);
1998 reply_nterror(req, NT_STATUS_NO_MEMORY);
1999 return;
2000 }
2001
2002 shadow_data->mem_ctx = shadow_mem_ctx;
2003
2004 /*
2005 * Call the VFS routine to actually do the work.
2006 */
2007 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
2008 talloc_destroy(shadow_data->mem_ctx);
2009 if (errno == ENOSYS) {
2010 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
2011 conn->connectpath));
2012 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2013 return;
2014 } else {
2015 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
2016 conn->connectpath));
2017 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
2018 return;
2019 }
2020 }
2021
2022 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
2023
2024 if (!labels) {
2025 data_count = 16;
2026 } else {
2027 data_count = 12+labels_data_count+4;
2028 }
2029
2030 if (max_data_count<data_count) {
2031 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
2032 max_data_count,data_count));
2033 talloc_destroy(shadow_data->mem_ctx);
2034 reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
2035 return;
2036 }
2037
2038 pdata = nttrans_realloc(ppdata, data_count);
2039 if (pdata == NULL) {
2040 talloc_destroy(shadow_data->mem_ctx);
2041 reply_nterror(req, NT_STATUS_NO_MEMORY);
2042 return;
2043 }
2044
2045 cur_pdata = pdata;
2046
2047 /* num_volumes 4 bytes */
2048 SIVAL(pdata,0,shadow_data->num_volumes);
2049
2050 if (labels) {
2051 /* num_labels 4 bytes */
2052 SIVAL(pdata,4,shadow_data->num_volumes);
2053 }
2054
2055 /* needed_data_count 4 bytes */
2056 SIVAL(pdata, 8, labels_data_count+4);
2057
2058 cur_pdata+=12;
2059
2060 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
2061 shadow_data->num_volumes, fsp_str_dbg(fsp)));
2062 if (labels && shadow_data->labels) {
2063 for (i=0;i<shadow_data->num_volumes;i++) {
2064 srvstr_push(pdata, req->flags2,
2065 cur_pdata, shadow_data->labels[i],
2066 2*sizeof(SHADOW_COPY_LABEL),
2067 STR_UNICODE|STR_TERMINATE);
2068 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
2069 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
2070 }
2071 }
2072
2073 talloc_destroy(shadow_data->mem_ctx);
2074
2075 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2076 pdata, data_count);
2077
2078 return;
2079 }
2080
2081 case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
2082 {
2083 /* pretend this succeeded -
2084 *
2085 * we have to send back a list with all files owned by this SID
2086 *
2087 * but I have to check that --metze
2088 */
2089 DOM_SID sid;
2090 uid_t uid;
2091 size_t sid_len = MIN(data_count-4,SID_MAX_SIZE);
2092
2093 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
2094
2095 if (!fsp_belongs_conn(conn, req, fsp)) {
2096 return;
2097 }
2098
2099 /* unknown 4 bytes: this is not the length of the sid :-( */
2100 /*unknown = IVAL(pdata,0);*/
2101
2102 sid_parse(pdata+4,sid_len,&sid);
2103 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
2104
2105 if (!sid_to_uid(&sid, &uid)) {
2106 DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
2107 sid_string_dbg(&sid),
2108 (unsigned long)sid_len));
2109 uid = (-1);
2110 }
2111
2112 /* we can take a look at the find source :-)
2113 *
2114 * find ./ -uid $uid -name '*' is what we need here
2115 *
2116 *
2117 * and send 4bytes len and then NULL terminated unicode strings
2118 * for each file
2119 *
2120 * but I don't know how to deal with the paged results
2121 * (maybe we can hang the result anywhere in the fsp struct)
2122 *
2123 * we don't send all files at once
2124 * and at the next we should *not* start from the beginning,
2125 * so we have to cache the result
2126 *
2127 * --metze
2128 */
2129
2130 /* this works for now... */
2131 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2132 return;
2133 }
2134 default:
2135 if (!logged_ioctl_message) {
2136 logged_ioctl_message = true; /* Only print this once... */
2137 DEBUG(0,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n",
2138 function));
2139 }
2140 }
2141
2142 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2143 }
2144
2145
2146 #ifdef HAVE_SYS_QUOTAS
2147 /****************************************************************************
2148 Reply to get user quota
2149 ****************************************************************************/
2150
2151 static void call_nt_transact_get_user_quota(connection_struct *conn,
2152 struct smb_request *req,
2153 uint16 **ppsetup,
2154 uint32 setup_count,
2155 char **ppparams,
2156 uint32 parameter_count,
2157 char **ppdata,
2158 uint32 data_count,
2159 uint32 max_data_count)
2160 {
2161 NTSTATUS nt_status = NT_STATUS_OK;
2162 char *params = *ppparams;
2163 char *pdata = *ppdata;
2164 char *entry;
2165 int data_len=0,param_len=0;
2166 int qt_len=0;
2167 int entry_len = 0;
2168 files_struct *fsp = NULL;
2169 uint16 level = 0;
2170 size_t sid_len;
2171 DOM_SID sid;
2172 bool start_enum = True;
2173 SMB_NTQUOTA_STRUCT qt;
2174 SMB_NTQUOTA_LIST *tmp_list;
2175 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2176
2177 ZERO_STRUCT(qt);
2178
2179 /* access check */
2180 if (conn->server_info->utok.uid != 0) {
2181 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2182 "[%s]\n", lp_servicename(SNUM(conn)),
2183 conn->server_info->unix_name));
2184 reply_doserror(req, ERRDOS, ERRnoaccess);
2185 return;
2186 }
2187
2188 /*
2189 * Ensure minimum number of parameters sent.
2190 */
2191
2192 if (parameter_count < 4) {
2193 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2194 reply_doserror(req, ERRDOS, ERRinvalidparam);
2195 return;
2196 }
2197
2198 /* maybe we can check the quota_fnum */
2199 fsp = file_fsp(req, SVAL(params,0));
2200 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2201 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2202 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2203 return;
2204 }
2205
2206 /* the NULL pointer checking for fsp->fake_file_handle->pd
2207 * is done by CHECK_NTQUOTA_HANDLE_OK()
2208 */
2209 qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2210
2211 level = SVAL(params,2);
2212
2213 /* unknown 12 bytes leading in params */
2214
2215 switch (level) {
2216 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2217 /* seems that we should continue with the enum here --metze */
2218
2219 if (qt_handle->quota_list!=NULL &&
2220 qt_handle->tmp_list==NULL) {
2221
2222 /* free the list */
2223 free_ntquota_list(&(qt_handle->quota_list));
2224
2225 /* Realloc the size of parameters and data we will return */
2226 param_len = 4;
2227 params = nttrans_realloc(ppparams, param_len);
2228 if(params == NULL) {
2229 reply_doserror(req, ERRDOS, ERRnomem);
2230 return;
2231 }
2232
2233 data_len = 0;
2234 SIVAL(params,0,data_len);
2235
2236 break;
2237 }
2238
2239 start_enum = False;
2240
2241 case TRANSACT_GET_USER_QUOTA_LIST_START:
2242
2243 if (qt_handle->quota_list==NULL &&
2244 qt_handle->tmp_list==NULL) {
2245 start_enum = True;
2246 }
2247
2248 if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2249 reply_doserror(req, ERRSRV, ERRerror);
2250 return;
2251 }
2252
2253 /* Realloc the size of parameters and data we will return */
2254 param_len = 4;
2255 params = nttrans_realloc(ppparams, param_len);
2256 if(params == NULL) {
2257 reply_doserror(req, ERRDOS, ERRnomem);
2258 return;
2259 }
2260
2261 /* we should not trust the value in max_data_count*/
2262 max_data_count = MIN(max_data_count,2048);
2263
2264 pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2265 if(pdata == NULL) {
2266 reply_doserror(req, ERRDOS, ERRnomem);
2267 return;
2268 }
2269
2270 entry = pdata;
2271
2272 /* set params Size of returned Quota Data 4 bytes*/
2273 /* but set it later when we know it */
2274
2275 /* for each entry push the data */
2276
2277 if (start_enum) {
2278 qt_handle->tmp_list = qt_handle->quota_list;
2279 }
2280
2281 tmp_list = qt_handle->tmp_list;
2282
2283 for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2284 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2285
2286 sid_len = ndr_size_dom_sid(
2287 &tmp_list->quotas->sid, NULL, 0);
2288 entry_len = 40 + sid_len;
2289
2290 /* nextoffset entry 4 bytes */
2291 SIVAL(entry,0,entry_len);
2292
2293 /* then the len of the SID 4 bytes */
2294 SIVAL(entry,4,sid_len);
2295
2296 /* unknown data 8 bytes uint64_t */
2297 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2298
2299 /* the used disk space 8 bytes uint64_t */
2300 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2301
2302 /* the soft quotas 8 bytes uint64_t */
2303 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2304
2305 /* the hard quotas 8 bytes uint64_t */
2306 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2307
2308 /* and now the SID */
2309 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2310 }
2311
2312 qt_handle->tmp_list = tmp_list;
2313
2314 /* overwrite the offset of the last entry */
2315 SIVAL(entry-entry_len,0,0);
2316
2317 data_len = 4+qt_len;
2318 /* overwrite the params quota_data_len */
2319 SIVAL(params,0,data_len);
2320
2321 break;
2322
2323 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2324
2325 /* unknown 4 bytes IVAL(pdata,0) */
2326
2327 if (data_count < 8) {
2328 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2329 reply_doserror(req, ERRDOS, ERRunknownlevel);
2330 return;
2331 }
2332
2333 sid_len = IVAL(pdata,4);
2334 /* Ensure this is less than 1mb. */
2335 if (sid_len > (1024*1024)) {
2336 reply_doserror(req, ERRDOS, ERRnomem);
2337 return;
2338 }
2339
2340 if (data_count < 8+sid_len) {
2341 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2342 reply_doserror(req, ERRDOS, ERRunknownlevel);
2343 return;
2344 }
2345
2346 data_len = 4+40+sid_len;
2347
2348 if (max_data_count < data_len) {
2349 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2350 max_data_count, data_len));
2351 param_len = 4;
2352 SIVAL(params,0,data_len);
2353 data_len = 0;
2354 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2355 break;
2356 }
2357
2358 sid_parse(pdata+8,sid_len,&sid);
2359
2360 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2361 ZERO_STRUCT(qt);
2362 /*
2363 * we have to return zero's in all fields
2364 * instead of returning an error here
2365 * --metze
2366 */
2367 }
2368
2369 /* Realloc the size of parameters and data we will return */
2370 param_len = 4;
2371 params = nttrans_realloc(ppparams, param_len);
2372 if(params == NULL) {
2373 reply_doserror(req, ERRDOS, ERRnomem);
2374 return;
2375 }
2376
2377 pdata = nttrans_realloc(ppdata, data_len);
2378 if(pdata == NULL) {
2379 reply_doserror(req, ERRDOS, ERRnomem);
2380 return;
2381 }
2382
2383 entry = pdata;
2384
2385 /* set params Size of returned Quota Data 4 bytes*/
2386 SIVAL(params,0,data_len);
2387
2388 /* nextoffset entry 4 bytes */
2389 SIVAL(entry,0,0);
2390
2391 /* then the len of the SID 4 bytes */
2392 SIVAL(entry,4,sid_len);
2393
2394 /* unknown data 8 bytes uint64_t */
2395 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2396
2397 /* the used disk space 8 bytes uint64_t */
2398 SBIG_UINT(entry,16,qt.usedspace);
2399
2400 /* the soft quotas 8 bytes uint64_t */
2401 SBIG_UINT(entry,24,qt.softlim);
2402
2403 /* the hard quotas 8 bytes uint64_t */
2404 SBIG_UINT(entry,32,qt.hardlim);
2405
2406 /* and now the SID */
2407 sid_linearize(entry+40, sid_len, &sid);
2408
2409 break;
2410
2411 default:
2412 DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2413 reply_doserror(req, ERRSRV, ERRerror);
2414 return;
2415 break;
2416 }
2417
2418 send_nt_replies(conn, req, nt_status, params, param_len,
2419 pdata, data_len);
2420 }
2421
2422 /****************************************************************************
2423 Reply to set user quota
2424 ****************************************************************************/
2425
2426 static void call_nt_transact_set_user_quota(connection_struct *conn,
2427 struct smb_request *req,
2428 uint16 **ppsetup,
2429 uint32 setup_count,
2430 char **ppparams,
2431 uint32 parameter_count,
2432 char **ppdata,
2433 uint32 data_count,
2434 uint32 max_data_count)
2435 {
2436 char *params = *ppparams;
2437 char *pdata = *ppdata;
2438 int data_len=0,param_len=0;
2439 SMB_NTQUOTA_STRUCT qt;
2440 size_t sid_len;
2441 DOM_SID sid;
2442 files_struct *fsp = NULL;
2443
2444 ZERO_STRUCT(qt);
2445
2446 /* access check */
2447 if (conn->server_info->utok.uid != 0) {
2448 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2449 "[%s]\n", lp_servicename(SNUM(conn)),
2450 conn->server_info->unix_name));
2451 reply_doserror(req, ERRDOS, ERRnoaccess);
2452 return;
2453 }
2454
2455 /*
2456 * Ensure minimum number of parameters sent.
2457 */
2458
2459 if (parameter_count < 2) {
2460 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2461 reply_doserror(req, ERRDOS, ERRinvalidparam);
2462 return;
2463 }
2464
2465 /* maybe we can check the quota_fnum */
2466 fsp = file_fsp(req, SVAL(params,0));
2467 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2468 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2469 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2470 return;
2471 }
2472
2473 if (data_count < 40) {
2474 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2475 reply_doserror(req, ERRDOS, ERRunknownlevel);
2476 return;
2477 }
2478
2479 /* offset to next quota record.
2480 * 4 bytes IVAL(pdata,0)
2481 * unused here...
2482 */
2483
2484 /* sid len */
2485 sid_len = IVAL(pdata,4);
2486
2487 if (data_count < 40+sid_len) {
2488 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2489 reply_doserror(req, ERRDOS, ERRunknownlevel);
2490 return;
2491 }
2492
2493 /* unknown 8 bytes in pdata
2494 * maybe its the change time in NTTIME
2495 */
2496
2497 /* the used space 8 bytes (uint64_t)*/
2498 qt.usedspace = (uint64_t)IVAL(pdata,16);
2499 #ifdef LARGE_SMB_OFF_T
2500 qt.usedspace |= (((uint64_t)IVAL(pdata,20)) << 32);
2501 #else /* LARGE_SMB_OFF_T */
2502 if ((IVAL(pdata,20) != 0)&&
2503 ((qt.usedspace != 0xFFFFFFFF)||
2504 (IVAL(pdata,20)!=0xFFFFFFFF))) {
2505 /* more than 32 bits? */
2506 reply_doserror(req, ERRDOS, ERRunknownlevel);
2507 return;
2508 }
2509 #endif /* LARGE_SMB_OFF_T */
2510
2511 /* the soft quotas 8 bytes (uint64_t)*/
2512 qt.softlim = (uint64_t)IVAL(pdata,24);
2513 #ifdef LARGE_SMB_OFF_T
2514 qt.softlim |= (((uint64_t)IVAL(pdata,28)) << 32);
2515 #else /* LARGE_SMB_OFF_T */
2516 if ((IVAL(pdata,28) != 0)&&
2517 ((qt.softlim != 0xFFFFFFFF)||
2518 (IVAL(pdata,28)!=0xFFFFFFFF))) {
2519 /* more than 32 bits? */
2520 reply_doserror(req, ERRDOS, ERRunknownlevel);
2521 return;
2522 }
2523 #endif /* LARGE_SMB_OFF_T */
2524
2525 /* the hard quotas 8 bytes (uint64_t)*/
2526 qt.hardlim = (uint64_t)IVAL(pdata,32);
2527 #ifdef LARGE_SMB_OFF_T
2528 qt.hardlim |= (((uint64_t)IVAL(pdata,36)) << 32);
2529 #else /* LARGE_SMB_OFF_T */
2530 if ((IVAL(pdata,36) != 0)&&
2531 ((qt.hardlim != 0xFFFFFFFF)||
2532 (IVAL(pdata,36)!=0xFFFFFFFF))) {
2533 /* more than 32 bits? */
2534 reply_doserror(req, ERRDOS, ERRunknownlevel);
2535 return;
2536 }
2537 #endif /* LARGE_SMB_OFF_T */
2538
2539 sid_parse(pdata+40,sid_len,&sid);
2540 DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2541
2542 /* 44 unknown bytes left... */
2543
2544 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2545 reply_doserror(req, ERRSRV, ERRerror);
2546 return;
2547 }
2548
2549 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2550 pdata, data_len);
2551 }
2552 #endif /* HAVE_SYS_QUOTAS */
2553
2554 static void handle_nttrans(connection_struct *conn,
2555 struct trans_state *state,
2556 struct smb_request *req)
2557 {
2558 if (get_Protocol() >= PROTOCOL_NT1) {
2559 req->flags2 |= 0x40; /* IS_LONG_NAME */
2560 SSVAL(req->inbuf,smb_flg2,req->flags2);
2561 }
2562
2563
2564 SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2565
2566 /* Now we must call the relevant NT_TRANS function */
2567 switch(state->call) {
2568 case NT_TRANSACT_CREATE:
2569 {
2570 START_PROFILE(NT_transact_create);
2571 call_nt_transact_create(
2572 conn, req,
2573 &state->setup, state->setup_count,
2574 &state->param, state->total_param,
2575 &state->data, state->total_data,
2576 state->max_data_return);
2577 END_PROFILE(NT_transact_create);
2578 break;
2579 }
2580
2581 case NT_TRANSACT_IOCTL:
2582 {
2583 START_PROFILE(NT_transact_ioctl);
2584 call_nt_transact_ioctl(
2585 conn, req,
2586 &state->setup, state->setup_count,
2587 &state->param, state->total_param,
2588 &state->data, state->total_data,
2589 state->max_data_return);
2590 END_PROFILE(NT_transact_ioctl);
2591 break;
2592 }
2593
2594 case NT_TRANSACT_SET_SECURITY_DESC:
2595 {
2596 START_PROFILE(NT_transact_set_security_desc);
2597 call_nt_transact_set_security_desc(
2598 conn, req,
2599 &state->setup, state->setup_count,
2600 &state->param, state->total_param,
2601 &state->data, state->total_data,
2602 state->max_data_return);
2603 END_PROFILE(NT_transact_set_security_desc);
2604 break;
2605 }
2606
2607 case NT_TRANSACT_NOTIFY_CHANGE:
2608 {
2609 START_PROFILE(NT_transact_notify_change);
2610 call_nt_transact_notify_change(
2611 conn, req,
2612 &state->setup, state->setup_count,
2613 &state->param, state->total_param,
2614 &state->data, state->total_data,
2615 state->max_data_return,
2616 state->max_param_return);
2617 END_PROFILE(NT_transact_notify_change);
2618 break;
2619 }
2620
2621 case NT_TRANSACT_RENAME:
2622 {
2623 START_PROFILE(NT_transact_rename);
2624 call_nt_transact_rename(
2625 conn, req,
2626 &state->setup, state->setup_count,
2627 &state->param, state->total_param,
2628 &state->data, state->total_data,
2629 state->max_data_return);
2630 END_PROFILE(NT_transact_rename);
2631 break;
2632 }
2633
2634 case NT_TRANSACT_QUERY_SECURITY_DESC:
2635 {
2636 START_PROFILE(NT_transact_query_security_desc);
2637 call_nt_transact_query_security_desc(
2638 conn, req,
2639 &state->setup, state->setup_count,
2640 &state->param, state->total_param,
2641 &state->data, state->total_data,
2642 state->max_data_return);
2643 END_PROFILE(NT_transact_query_security_desc);
2644 break;
2645 }
2646
2647 #ifdef HAVE_SYS_QUOTAS
2648 case NT_TRANSACT_GET_USER_QUOTA:
2649 {
2650 START_PROFILE(NT_transact_get_user_quota);
2651 call_nt_transact_get_user_quota(
2652 conn, req,
2653 &state->setup, state->setup_count,
2654 &state->param, state->total_param,
2655 &state->data, state->total_data,
2656 state->max_data_return);
2657 END_PROFILE(NT_transact_get_user_quota);
2658 break;
2659 }
2660
2661 case NT_TRANSACT_SET_USER_QUOTA:
2662 {
2663 START_PROFILE(NT_transact_set_user_quota);
2664 call_nt_transact_set_user_quota(
2665 conn, req,
2666 &state->setup, state->setup_count,
2667 &state->param, state->total_param,
2668 &state->data, state->total_data,
2669 state->max_data_return);
2670 END_PROFILE(NT_transact_set_user_quota);
2671 break;
2672 }
2673 #endif /* HAVE_SYS_QUOTAS */
2674
2675 default:
2676 /* Error in request */
2677 DEBUG(0,("handle_nttrans: Unknown request %d in "
2678 "nttrans call\n", state->call));
2679 reply_doserror(req, ERRSRV, ERRerror);
2680 return;
2681 }
2682 return;
2683 }
2684
2685 /****************************************************************************
2686 Reply to a SMBNTtrans.
2687 ****************************************************************************/
2688
2689 void reply_nttrans(struct smb_request *req)
2690 {
2691 connection_struct *conn = req->conn;
2692 uint32_t pscnt;
2693 uint32_t psoff;
2694 uint32_t dscnt;
2695 uint32_t dsoff;
2696 uint16 function_code;
2697 NTSTATUS result;
2698 struct trans_state *state;
2699
2700 START_PROFILE(SMBnttrans);
2701
2702 if (req->wct < 19) {
2703 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2704 END_PROFILE(SMBnttrans);
2705 return;
2706 }
2707
2708 pscnt = IVAL(req->vwv+9, 1);
2709 psoff = IVAL(req->vwv+11, 1);
2710 dscnt = IVAL(req->vwv+13, 1);
2711 dsoff = IVAL(req->vwv+15, 1);
2712 function_code = SVAL(req->vwv+18, 0);
2713
2714 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2715 reply_doserror(req, ERRSRV, ERRaccess);
2716 END_PROFILE(SMBnttrans);
2717 return;
2718 }
2719
2720 result = allow_new_trans(conn->pending_trans, req->mid);
2721 if (!NT_STATUS_IS_OK(result)) {
2722 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2723 reply_nterror(req, result);
2724 END_PROFILE(SMBnttrans);
2725 return;
2726 }
2727
2728 if ((state = TALLOC_P(conn, struct trans_state)) == NULL) {
2729 reply_doserror(req, ERRSRV, ERRaccess);
2730 END_PROFILE(SMBnttrans);
2731 return;
2732 }
2733
2734 state->cmd = SMBnttrans;
2735
2736 state->mid = req->mid;
2737 state->vuid = req->vuid;
2738 state->total_data = IVAL(req->vwv+3, 1);
2739 state->data = NULL;
2740 state->total_param = IVAL(req->vwv+1, 1);
2741 state->param = NULL;
2742 state->max_data_return = IVAL(req->vwv+7, 1);
2743 state->max_param_return = IVAL(req->vwv+5, 1);
2744
2745 /* setup count is in *words* */
2746 state->setup_count = 2*CVAL(req->vwv+17, 1);
2747 state->setup = NULL;
2748 state->call = function_code;
2749
2750 DEBUG(10, ("num_setup=%u, "
2751 "param_total=%u, this_param=%u, max_param=%u, "
2752 "data_total=%u, this_data=%u, max_data=%u, "
2753 "param_offset=%u, data_offset=%u\n",
2754 (unsigned)state->setup_count,
2755 (unsigned)state->total_param, (unsigned)pscnt,
2756 (unsigned)state->max_param_return,
2757 (unsigned)state->total_data, (unsigned)dscnt,
2758 (unsigned)state->max_data_return,
2759 (unsigned)psoff, (unsigned)dsoff));
2760
2761 /*
2762 * All nttrans messages we handle have smb_wct == 19 +
2763 * state->setup_count. Ensure this is so as a sanity check.
2764 */
2765
2766 if(req->wct != 19 + (state->setup_count/2)) {
2767 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2768 req->wct, 19 + (state->setup_count/2)));
2769 goto bad_param;
2770 }
2771
2772 /* Don't allow more than 128mb for each value. */
2773 if ((state->total_data > (1024*1024*128)) ||
2774 (state->total_param > (1024*1024*128))) {
2775 reply_doserror(req, ERRDOS, ERRnomem);
2776 END_PROFILE(SMBnttrans);
2777 return;
2778 }
2779
2780 if ((dscnt > state->total_data) || (pscnt > state->total_param))
2781 goto bad_param;
2782
2783 if (state->total_data) {
2784
2785 if (trans_oob(state->total_data, 0, dscnt)
2786 || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
2787 goto bad_param;
2788 }
2789
2790 /* Can't use talloc here, the core routines do realloc on the
2791 * params and data. */
2792 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2793 DEBUG(0,("reply_nttrans: data malloc fail for %u "
2794 "bytes !\n", (unsigned int)state->total_data));
2795 TALLOC_FREE(state);
2796 reply_doserror(req, ERRDOS, ERRnomem);
2797 END_PROFILE(SMBnttrans);
2798 return;
2799 }
2800
2801 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2802 }
2803
2804 if (state->total_param) {
2805
2806 if (trans_oob(state->total_param, 0, pscnt)
2807 || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
2808 goto bad_param;
2809 }
2810
2811 /* Can't use talloc here, the core routines do realloc on the
2812 * params and data. */
2813 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2814 DEBUG(0,("reply_nttrans: param malloc fail for %u "
2815 "bytes !\n", (unsigned int)state->total_param));
2816 SAFE_FREE(state->data);
2817 TALLOC_FREE(state);
2818 reply_doserror(req, ERRDOS, ERRnomem);
2819 END_PROFILE(SMBnttrans);
2820 return;
2821 }
2822
2823 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2824 }
2825
2826 state->received_data = dscnt;
2827 state->received_param = pscnt;
2828
2829 if(state->setup_count > 0) {
2830 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2831 state->setup_count));
2832
2833 /*
2834 * No overflow possible here, state->setup_count is an
2835 * unsigned int, being filled by a single byte from
2836 * CVAL(req->vwv+13, 0) above. The cast in the comparison
2837 * below is not necessary, it's here to clarify things. The
2838 * validity of req->vwv and req->wct has been checked in
2839 * init_smb_request already.
2840 */
2841 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
2842 goto bad_param;
2843 }
2844
2845 state->setup = (uint16 *)TALLOC(state, state->setup_count);
2846 if (state->setup == NULL) {
2847 DEBUG(0,("reply_nttrans : Out of memory\n"));
2848 SAFE_FREE(state->data);
2849 SAFE_FREE(state->param);
2850 TALLOC_FREE(state);
2851 reply_doserror(req, ERRDOS, ERRnomem);
2852 END_PROFILE(SMBnttrans);
2853 return;
2854 }
2855
2856 memcpy(state->setup, req->vwv+19, state->setup_count);
2857 dump_data(10, (uint8 *)state->setup, state->setup_count);
2858 }
2859
2860 if ((state->received_data == state->total_data) &&
2861 (state->received_param == state->total_param)) {
2862 handle_nttrans(conn, state, req);
2863 SAFE_FREE(state->param);
2864 SAFE_FREE(state->data);
2865 TALLOC_FREE(state);
2866 END_PROFILE(SMBnttrans);
2867 return;
2868 }
2869
2870 DLIST_ADD(conn->pending_trans, state);
2871
2872 /* We need to send an interim response then receive the rest
2873 of the parameter/data bytes */
2874 reply_outbuf(req, 0, 0);
2875 show_msg((char *)req->outbuf);
2876 END_PROFILE(SMBnttrans);
2877 return;
2878
2879 bad_param:
2880
2881 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2882 SAFE_FREE(state->data);
2883 SAFE_FREE(state->param);
2884 TALLOC_FREE(state);
2885 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2886 END_PROFILE(SMBnttrans);
2887 return;
2888 }
2889
2890 /****************************************************************************
2891 Reply to a SMBnttranss
2892 ****************************************************************************/
2893
2894 void reply_nttranss(struct smb_request *req)
2895 {
2896 connection_struct *conn = req->conn;
2897 uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
2898 struct trans_state *state;
2899
2900 START_PROFILE(SMBnttranss);
2901
2902 show_msg((char *)req->inbuf);
2903
2904 if (req->wct < 18) {
2905 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2906 END_PROFILE(SMBnttranss);
2907 return;
2908 }
2909
2910 for (state = conn->pending_trans; state != NULL;
2911 state = state->next) {
2912 if (state->mid == req->mid) {
2913 break;
2914 }
2915 }
2916
2917 if ((state == NULL) || (state->cmd != SMBnttrans)) {
2918 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2919 END_PROFILE(SMBnttranss);
2920 return;
2921 }
2922
2923 /* Revise state->total_param and state->total_data in case they have
2924 changed downwards */
2925 if (IVAL(req->vwv+1, 1) < state->total_param) {
2926 state->total_param = IVAL(req->vwv+1, 1);
2927 }
2928 if (IVAL(req->vwv+3, 1) < state->total_data) {
2929 state->total_data = IVAL(req->vwv+3, 1);
2930 }
2931
2932 pcnt = IVAL(req->vwv+5, 1);
2933 poff = IVAL(req->vwv+7, 1);
2934 pdisp = IVAL(req->vwv+9, 1);
2935
2936 dcnt = IVAL(req->vwv+11, 1);
2937 doff = IVAL(req->vwv+13, 1);
2938 ddisp = IVAL(req->vwv+15, 1);
2939
2940 state->received_param += pcnt;
2941 state->received_data += dcnt;
2942
2943 if ((state->received_data > state->total_data) ||
2944 (state->received_param > state->total_param))
2945 goto bad_param;
2946
2947 if (pcnt) {
2948 if (trans_oob(state->total_param, pdisp, pcnt)
2949 || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
2950 goto bad_param;
2951 }
2952 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
2953 }
2954
2955 if (dcnt) {
2956 if (trans_oob(state->total_data, ddisp, dcnt)
2957 || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
2958 goto bad_param;
2959 }
2960 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
2961 }
2962
2963 if ((state->received_param < state->total_param) ||
2964 (state->received_data < state->total_data)) {
2965 END_PROFILE(SMBnttranss);
2966 return;
2967 }
2968
2969 handle_nttrans(conn, state, req);
2970
2971 DLIST_REMOVE(conn->pending_trans, state);
2972 SAFE_FREE(state->data);
2973 SAFE_FREE(state->param);
2974 TALLOC_FREE(state);
2975 END_PROFILE(SMBnttranss);
2976 return;
2977
2978 bad_param:
2979
2980 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
2981 DLIST_REMOVE(conn->pending_trans, state);
2982 SAFE_FREE(state->data);
2983 SAFE_FREE(state->param);
2984 TALLOC_FREE(state);
2985 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2986 END_PROFILE(SMBnttranss);
2987 return;
2988 }
reg import