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Add "store create time" parameter (docs to follow)
[Samba.git] / source3 / smbd / nttrans.c
blob03fdff3900e8c0f075be5204c9f64561887cc73b
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 enum protocol_types Protocol;
25 extern const struct generic_mapping file_generic_mapping;
26
27 static char *nttrans_realloc(char **ptr, size_t size)
28 {
29 if (ptr==NULL) {
30 smb_panic("nttrans_realloc() called with NULL ptr");
31 }
32
33 *ptr = (char *)SMB_REALLOC(*ptr, size);
34 if(*ptr == NULL) {
35 return NULL;
36 }
37 memset(*ptr,'\0',size);
38 return *ptr;
39 }
40
41 /****************************************************************************
42 Send the required number of replies back.
43 We assume all fields other than the data fields are
44 set correctly for the type of call.
45 HACK ! Always assumes smb_setup field is zero.
46 ****************************************************************************/
47
48 void send_nt_replies(connection_struct *conn,
49 struct smb_request *req, NTSTATUS nt_error,
50 char *params, int paramsize,
51 char *pdata, int datasize)
52 {
53 int data_to_send = datasize;
54 int params_to_send = paramsize;
55 int useable_space;
56 char *pp = params;
57 char *pd = pdata;
58 int params_sent_thistime, data_sent_thistime, total_sent_thistime;
59 int alignment_offset = 3;
60 int data_alignment_offset = 0;
61 struct smbd_server_connection *sconn = smbd_server_conn;
62 int max_send = sconn->smb1.sessions.max_send;
63
64 /*
65 * If there genuinely are no parameters or data to send just send
66 * the empty packet.
67 */
68
69 if(params_to_send == 0 && data_to_send == 0) {
70 reply_outbuf(req, 18, 0);
71 if (NT_STATUS_V(nt_error)) {
72 error_packet_set((char *)req->outbuf,
73 0, 0, nt_error,
74 __LINE__,__FILE__);
75 }
76 show_msg((char *)req->outbuf);
77 if (!srv_send_smb(smbd_server_fd(),
78 (char *)req->outbuf,
79 true, req->seqnum+1,
80 IS_CONN_ENCRYPTED(conn),
81 &req->pcd)) {
82 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
83 }
84 TALLOC_FREE(req->outbuf);
85 return;
86 }
87
88 /*
89 * When sending params and data ensure that both are nicely aligned.
90 * Only do this alignment when there is also data to send - else
91 * can cause NT redirector problems.
92 */
93
94 if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
95 data_alignment_offset = 4 - (params_to_send % 4);
96 }
97
98 /*
99 * Space is bufsize minus Netbios over TCP header minus SMB header.
100 * The alignment_offset is to align the param bytes on a four byte
101 * boundary (2 bytes for data len, one byte pad).
102 * NT needs this to work correctly.
103 */
104
105 useable_space = max_send - (smb_size
106 + 2 * 18 /* wct */
107 + alignment_offset
108 + data_alignment_offset);
109
110 if (useable_space < 0) {
111 char *msg = talloc_asprintf(
112 talloc_tos(),
113 "send_nt_replies failed sanity useable_space = %d!!!",
114 useable_space);
115 DEBUG(0, ("%s\n", msg));
116 exit_server_cleanly(msg);
117 }
118
119 while (params_to_send || data_to_send) {
120
121 /*
122 * Calculate whether we will totally or partially fill this packet.
123 */
124
125 total_sent_thistime = params_to_send + data_to_send;
126
127 /*
128 * We can never send more than useable_space.
129 */
130
131 total_sent_thistime = MIN(total_sent_thistime, useable_space);
132
133 reply_outbuf(req, 18,
134 total_sent_thistime + alignment_offset
135 + data_alignment_offset);
136
137 /*
138 * We might have had SMBnttranss in req->inbuf, fix that.
139 */
140 SCVAL(req->outbuf, smb_com, SMBnttrans);
141
142 /*
143 * Set total params and data to be sent.
144 */
145
146 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
147 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
148
149 /*
150 * Calculate how many parameters and data we can fit into
151 * this packet. Parameters get precedence.
152 */
153
154 params_sent_thistime = MIN(params_to_send,useable_space);
155 data_sent_thistime = useable_space - params_sent_thistime;
156 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
157
158 SIVAL(req->outbuf, smb_ntr_ParameterCount,
159 params_sent_thistime);
160
161 if(params_sent_thistime == 0) {
162 SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
163 SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
164 } else {
165 /*
166 * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
167 * parameter bytes, however the first 4 bytes of outbuf are
168 * the Netbios over TCP header. Thus use smb_base() to subtract
169 * them from the calculation.
170 */
171
172 SIVAL(req->outbuf,smb_ntr_ParameterOffset,
173 ((smb_buf(req->outbuf)+alignment_offset)
174 - smb_base(req->outbuf)));
175 /*
176 * Absolute displacement of param bytes sent in this packet.
177 */
178
179 SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
180 pp - params);
181 }
182
183 /*
184 * Deal with the data portion.
185 */
186
187 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
188
189 if(data_sent_thistime == 0) {
190 SIVAL(req->outbuf,smb_ntr_DataOffset,0);
191 SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
192 } else {
193 /*
194 * The offset of the data bytes is the offset of the
195 * parameter bytes plus the number of parameters being sent this time.
196 */
197
198 SIVAL(req->outbuf, smb_ntr_DataOffset,
199 ((smb_buf(req->outbuf)+alignment_offset) -
200 smb_base(req->outbuf))
201 + params_sent_thistime + data_alignment_offset);
202 SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
203 }
204
205 /*
206 * Copy the param bytes into the packet.
207 */
208
209 if(params_sent_thistime) {
210 if (alignment_offset != 0) {
211 memset(smb_buf(req->outbuf), 0,
212 alignment_offset);
213 }
214 memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
215 params_sent_thistime);
216 }
217
218 /*
219 * Copy in the data bytes
220 */
221
222 if(data_sent_thistime) {
223 if (data_alignment_offset != 0) {
224 memset((smb_buf(req->outbuf)+alignment_offset+
225 params_sent_thistime), 0,
226 data_alignment_offset);
227 }
228 memcpy(smb_buf(req->outbuf)+alignment_offset
229 +params_sent_thistime+data_alignment_offset,
230 pd,data_sent_thistime);
231 }
232
233 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
234 params_sent_thistime, data_sent_thistime, useable_space));
235 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
236 params_to_send, data_to_send, paramsize, datasize));
237
238 if (NT_STATUS_V(nt_error)) {
239 error_packet_set((char *)req->outbuf,
240 0, 0, nt_error,
241 __LINE__,__FILE__);
242 }
243
244 /* Send the packet */
245 show_msg((char *)req->outbuf);
246 if (!srv_send_smb(smbd_server_fd(),
247 (char *)req->outbuf,
248 true, req->seqnum+1,
249 IS_CONN_ENCRYPTED(conn),
250 &req->pcd)) {
251 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
252 }
253
254 TALLOC_FREE(req->outbuf);
255
256 pp += params_sent_thistime;
257 pd += data_sent_thistime;
258
259 params_to_send -= params_sent_thistime;
260 data_to_send -= data_sent_thistime;
261
262 /*
263 * Sanity check
264 */
265
266 if(params_to_send < 0 || data_to_send < 0) {
267 DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
268 params_to_send, data_to_send));
269 exit_server_cleanly("send_nt_replies: internal error");
270 }
271 }
272 }
273
274 /****************************************************************************
275 Reply to an NT create and X call on a pipe
276 ****************************************************************************/
277
278 static void nt_open_pipe(char *fname, connection_struct *conn,
279 struct smb_request *req, int *ppnum)
280 {
281 files_struct *fsp;
282 NTSTATUS status;
283
284 DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
285
286 /* Strip \\ off the name. */
287 fname++;
288
289 status = open_np_file(req, fname, &fsp);
290 if (!NT_STATUS_IS_OK(status)) {
291 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
292 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
293 ERRDOS, ERRbadpipe);
294 return;
295 }
296 reply_nterror(req, status);
297 return;
298 }
299
300 *ppnum = fsp->fnum;
301 return;
302 }
303
304 /****************************************************************************
305 Reply to an NT create and X call for pipes.
306 ****************************************************************************/
307
308 static void do_ntcreate_pipe_open(connection_struct *conn,
309 struct smb_request *req)
310 {
311 char *fname = NULL;
312 int pnum = -1;
313 char *p = NULL;
314 uint32 flags = IVAL(req->vwv+3, 1);
315 TALLOC_CTX *ctx = talloc_tos();
316
317 srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
318
319 if (!fname) {
320 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
321 ERRDOS, ERRbadpipe);
322 return;
323 }
324 nt_open_pipe(fname, conn, req, &pnum);
325
326 if (req->outbuf) {
327 /* error reply */
328 return;
329 }
330
331 /*
332 * Deal with pipe return.
333 */
334
335 if (flags & EXTENDED_RESPONSE_REQUIRED) {
336 /* This is very strange. We
337 * return 50 words, but only set
338 * the wcnt to 42 ? It's definately
339 * what happens on the wire....
340 */
341 reply_outbuf(req, 50, 0);
342 SCVAL(req->outbuf,smb_wct,42);
343 } else {
344 reply_outbuf(req, 34, 0);
345 }
346
347 p = (char *)req->outbuf + smb_vwv2;
348 p++;
349 SSVAL(p,0,pnum);
350 p += 2;
351 SIVAL(p,0,FILE_WAS_OPENED);
352 p += 4;
353 p += 32;
354 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
355 p += 20;
356 /* File type. */
357 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
358 /* Device state. */
359 SSVAL(p,2, 0x5FF); /* ? */
360 p += 4;
361
362 if (flags & EXTENDED_RESPONSE_REQUIRED) {
363 p += 25;
364 SIVAL(p,0,FILE_GENERIC_ALL);
365 /*
366 * For pipes W2K3 seems to return
367 * 0x12019B next.
368 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
369 */
370 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
371 }
372
373 DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
374
375 chain_reply(req);
376 }
377
378 /****************************************************************************
379 Reply to an NT create and X call.
380 ****************************************************************************/
381
382 void reply_ntcreate_and_X(struct smb_request *req)
383 {
384 connection_struct *conn = req->conn;
385 struct smb_filename *smb_fname = NULL;
386 char *fname = NULL;
387 uint32 flags;
388 uint32 access_mask;
389 uint32 file_attributes;
390 uint32 share_access;
391 uint32 create_disposition;
392 uint32 create_options;
393 uint16 root_dir_fid;
394 uint64_t allocation_size;
395 /* Breakout the oplock request bits so we can set the
396 reply bits separately. */
397 uint32 fattr=0;
398 SMB_OFF_T file_len = 0;
399 int info = 0;
400 files_struct *fsp = NULL;
401 char *p = NULL;
402 struct timespec create_timespec;
403 struct timespec c_timespec;
404 struct timespec a_timespec;
405 struct timespec m_timespec;
406 struct timespec write_time_ts;
407 NTSTATUS status;
408 int oplock_request;
409 uint8_t oplock_granted = NO_OPLOCK_RETURN;
410 TALLOC_CTX *ctx = talloc_tos();
411
412 START_PROFILE(SMBntcreateX);
413
414 if (req->wct < 24) {
415 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
416 return;
417 }
418
419 flags = IVAL(req->vwv+3, 1);
420 access_mask = IVAL(req->vwv+7, 1);
421 file_attributes = IVAL(req->vwv+13, 1);
422 share_access = IVAL(req->vwv+15, 1);
423 create_disposition = IVAL(req->vwv+17, 1);
424 create_options = IVAL(req->vwv+19, 1);
425 root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
426
427 allocation_size = (uint64_t)IVAL(req->vwv+9, 1);
428 #ifdef LARGE_SMB_OFF_T
429 allocation_size |= (((uint64_t)IVAL(req->vwv+11, 1)) << 32);
430 #endif
431
432 srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
433 STR_TERMINATE, &status);
434
435 if (!NT_STATUS_IS_OK(status)) {
436 reply_nterror(req, status);
437 goto out;
438 }
439
440 DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
441 "file_attributes = 0x%x, share_access = 0x%x, "
442 "create_disposition = 0x%x create_options = 0x%x "
443 "root_dir_fid = 0x%x, fname = %s\n",
444 (unsigned int)flags,
445 (unsigned int)access_mask,
446 (unsigned int)file_attributes,
447 (unsigned int)share_access,
448 (unsigned int)create_disposition,
449 (unsigned int)create_options,
450 (unsigned int)root_dir_fid,
451 fname));
452
453 /*
454 * we need to remove ignored bits when they come directly from the client
455 * because we reuse some of them for internal stuff
456 */
457 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
458
459 /*
460 * If it's an IPC, use the pipe handler.
461 */
462
463 if (IS_IPC(conn)) {
464 if (lp_nt_pipe_support()) {
465 do_ntcreate_pipe_open(conn, req);
466 goto out;
467 }
468 reply_doserror(req, ERRDOS, ERRnoaccess);
469 goto out;
470 }
471
472 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
473 if (oplock_request) {
474 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
475 ? BATCH_OPLOCK : 0;
476 }
477
478 status = filename_convert(ctx,
479 conn,
480 req->flags2 & FLAGS2_DFS_PATHNAMES,
481 fname,
482 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 status = SMB_VFS_CREATE_FILE(
498 conn, /* conn */
499 req, /* req */
500 root_dir_fid, /* root_dir_fid */
501 smb_fname, /* fname */
502 access_mask, /* access_mask */
503 share_access, /* share_access */
504 create_disposition, /* create_disposition*/
505 create_options, /* create_options */
506 file_attributes, /* file_attributes */
507 oplock_request, /* oplock_request */
508 allocation_size, /* allocation_size */
509 NULL, /* sd */
510 NULL, /* ea_list */
511 &fsp, /* result */
512 &info); /* pinfo */
513
514 if (!NT_STATUS_IS_OK(status)) {
515 if (open_was_deferred(req->mid)) {
516 /* We have re-scheduled this call, no error. */
517 goto out;
518 }
519 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_COLLISION)) {
520 reply_botherror(req, status, ERRDOS, ERRfilexists);
521 }
522 else {
523 reply_nterror(req, status);
524 }
525 goto out;
526 }
527
528 /* Ensure we're pointing at the correct stat struct. */
529 TALLOC_FREE(smb_fname);
530 smb_fname = fsp->fsp_name;
531
532 /*
533 * If the caller set the extended oplock request bit
534 * and we granted one (by whatever means) - set the
535 * correct bit for extended oplock reply.
536 */
537
538 if (oplock_request &&
539 (lp_fake_oplocks(SNUM(conn))
540 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
541
542 /*
543 * Exclusive oplock granted
544 */
545
546 if (flags & REQUEST_BATCH_OPLOCK) {
547 oplock_granted = BATCH_OPLOCK_RETURN;
548 } else {
549 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
550 }
551 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
552 oplock_granted = LEVEL_II_OPLOCK_RETURN;
553 } else {
554 oplock_granted = NO_OPLOCK_RETURN;
555 }
556
557 file_len = smb_fname->st.st_ex_size;
558 fattr = dos_mode(conn, smb_fname);
559 if (fattr == 0) {
560 fattr = FILE_ATTRIBUTE_NORMAL;
561 }
562
563 if (flags & EXTENDED_RESPONSE_REQUIRED) {
564 /* This is very strange. We
565 * return 50 words, but only set
566 * the wcnt to 42 ? It's definately
567 * what happens on the wire....
568 */
569 reply_outbuf(req, 50, 0);
570 SCVAL(req->outbuf,smb_wct,42);
571 } else {
572 reply_outbuf(req, 34, 0);
573 }
574
575 p = (char *)req->outbuf + smb_vwv2;
576
577 SCVAL(p, 0, oplock_granted);
578
579 p++;
580 SSVAL(p,0,fsp->fnum);
581 p += 2;
582 if ((create_disposition == FILE_SUPERSEDE)
583 && (info == FILE_WAS_OVERWRITTEN)) {
584 SIVAL(p,0,FILE_WAS_SUPERSEDED);
585 } else {
586 SIVAL(p,0,info);
587 }
588 p += 4;
589
590 /* Deal with other possible opens having a modified
591 write time. JRA. */
592 ZERO_STRUCT(write_time_ts);
593 get_file_infos(fsp->file_id, NULL, &write_time_ts);
594 if (!null_timespec(write_time_ts)) {
595 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
596 }
597
598 /* Create time. */
599 create_timespec = get_create_timespec(conn, fsp, smb_fname);
600 a_timespec = smb_fname->st.st_ex_atime;
601 m_timespec = smb_fname->st.st_ex_mtime;
602 c_timespec = get_change_timespec(conn, fsp, smb_fname);
603
604 if (lp_dos_filetime_resolution(SNUM(conn))) {
605 dos_filetime_timespec(&create_timespec);
606 dos_filetime_timespec(&a_timespec);
607 dos_filetime_timespec(&m_timespec);
608 dos_filetime_timespec(&c_timespec);
609 }
610
611 put_long_date_timespec(p, create_timespec); /* create time. */
612 p += 8;
613 put_long_date_timespec(p, a_timespec); /* access time */
614 p += 8;
615 put_long_date_timespec(p, m_timespec); /* write time */
616 p += 8;
617 put_long_date_timespec(p, c_timespec); /* change time */
618 p += 8;
619 SIVAL(p,0,fattr); /* File Attributes. */
620 p += 4;
621 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
622 p += 8;
623 SOFF_T(p,0,file_len);
624 p += 8;
625 if (flags & EXTENDED_RESPONSE_REQUIRED) {
626 SSVAL(p,2,0x7);
627 }
628 p += 4;
629 SCVAL(p,0,fsp->is_directory ? 1 : 0);
630
631 if (flags & EXTENDED_RESPONSE_REQUIRED) {
632 uint32 perms = 0;
633 p += 25;
634 if (fsp->is_directory ||
635 can_write_to_file(conn, smb_fname)) {
636 perms = FILE_GENERIC_ALL;
637 } else {
638 perms = FILE_GENERIC_READ|FILE_EXECUTE;
639 }
640 SIVAL(p,0,perms);
641 }
642
643 DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
644 fsp->fnum, smb_fname_str_dbg(smb_fname)));
645
646 chain_reply(req);
647 out:
648 END_PROFILE(SMBntcreateX);
649 return;
650 }
651
652 /****************************************************************************
653 Reply to a NT_TRANSACT_CREATE call to open a pipe.
654 ****************************************************************************/
655
656 static void do_nt_transact_create_pipe(connection_struct *conn,
657 struct smb_request *req,
658 uint16 **ppsetup, uint32 setup_count,
659 char **ppparams, uint32 parameter_count,
660 char **ppdata, uint32 data_count)
661 {
662 char *fname = NULL;
663 char *params = *ppparams;
664 int pnum = -1;
665 char *p = NULL;
666 NTSTATUS status;
667 size_t param_len;
668 uint32 flags;
669 TALLOC_CTX *ctx = talloc_tos();
670
671 /*
672 * Ensure minimum number of parameters sent.
673 */
674
675 if(parameter_count < 54) {
676 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
677 reply_doserror(req, ERRDOS, ERRnoaccess);
678 return;
679 }
680
681 flags = IVAL(params,0);
682
683 srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
684 parameter_count-53, STR_TERMINATE,
685 &status);
686 if (!NT_STATUS_IS_OK(status)) {
687 reply_nterror(req, status);
688 return;
689 }
690
691 nt_open_pipe(fname, conn, req, &pnum);
692
693 if (req->outbuf) {
694 /* Error return */
695 return;
696 }
697
698 /* Realloc the size of parameters and data we will return */
699 if (flags & EXTENDED_RESPONSE_REQUIRED) {
700 /* Extended response is 32 more byyes. */
701 param_len = 101;
702 } else {
703 param_len = 69;
704 }
705 params = nttrans_realloc(ppparams, param_len);
706 if(params == NULL) {
707 reply_doserror(req, ERRDOS, ERRnomem);
708 return;
709 }
710
711 p = params;
712 SCVAL(p,0,NO_OPLOCK_RETURN);
713
714 p += 2;
715 SSVAL(p,0,pnum);
716 p += 2;
717 SIVAL(p,0,FILE_WAS_OPENED);
718 p += 8;
719
720 p += 32;
721 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
722 p += 20;
723 /* File type. */
724 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
725 /* Device state. */
726 SSVAL(p,2, 0x5FF); /* ? */
727 p += 4;
728
729 if (flags & EXTENDED_RESPONSE_REQUIRED) {
730 p += 25;
731 SIVAL(p,0,FILE_GENERIC_ALL);
732 /*
733 * For pipes W2K3 seems to return
734 * 0x12019B next.
735 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
736 */
737 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
738 }
739
740 DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
741
742 /* Send the required number of replies */
743 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
744
745 return;
746 }
747
748 /****************************************************************************
749 Internal fn to set security descriptors.
750 ****************************************************************************/
751
752 static NTSTATUS set_sd(files_struct *fsp, uint8 *data, uint32 sd_len,
753 uint32 security_info_sent)
754 {
755 SEC_DESC *psd = NULL;
756 NTSTATUS status;
757
758 if (sd_len == 0 || !lp_nt_acl_support(SNUM(fsp->conn))) {
759 return NT_STATUS_OK;
760 }
761
762 status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
763
764 if (!NT_STATUS_IS_OK(status)) {
765 return status;
766 }
767
768 if (psd->owner_sid == NULL) {
769 security_info_sent &= ~OWNER_SECURITY_INFORMATION;
770 }
771 if (psd->group_sid == NULL) {
772 security_info_sent &= ~GROUP_SECURITY_INFORMATION;
773 }
774
775 /* Convert all the generic bits. */
776 security_acl_map_generic(psd->dacl, &file_generic_mapping);
777 security_acl_map_generic(psd->sacl, &file_generic_mapping);
778
779 if (DEBUGLEVEL >= 10) {
780 DEBUG(10,("set_sd for file %s\n", fsp_str_dbg(fsp)));
781 NDR_PRINT_DEBUG(security_descriptor, psd);
782 }
783
784 status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
785
786 TALLOC_FREE(psd);
787
788 return status;
789 }
790
791 /****************************************************************************
792 Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
793 ****************************************************************************/
794
795 static struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
796 {
797 struct ea_list *ea_list_head = NULL;
798 size_t offset = 0;
799
800 if (data_size < 4) {
801 return NULL;
802 }
803
804 while (offset + 4 <= data_size) {
805 size_t next_offset = IVAL(pdata,offset);
806 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
807
808 if (!eal) {
809 return NULL;
810 }
811
812 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
813 if (next_offset == 0) {
814 break;
815 }
816 offset += next_offset;
817 }
818
819 return ea_list_head;
820 }
821
822 /****************************************************************************
823 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
824 ****************************************************************************/
825
826 static void call_nt_transact_create(connection_struct *conn,
827 struct smb_request *req,
828 uint16 **ppsetup, uint32 setup_count,
829 char **ppparams, uint32 parameter_count,
830 char **ppdata, uint32 data_count,
831 uint32 max_data_count)
832 {
833 struct smb_filename *smb_fname = NULL;
834 char *fname = NULL;
835 char *params = *ppparams;
836 char *data = *ppdata;
837 /* Breakout the oplock request bits so we can set the reply bits separately. */
838 uint32 fattr=0;
839 SMB_OFF_T file_len = 0;
840 int info = 0;
841 files_struct *fsp = NULL;
842 char *p = NULL;
843 uint32 flags;
844 uint32 access_mask;
845 uint32 file_attributes;
846 uint32 share_access;
847 uint32 create_disposition;
848 uint32 create_options;
849 uint32 sd_len;
850 struct security_descriptor *sd = NULL;
851 uint32 ea_len;
852 uint16 root_dir_fid;
853 struct timespec create_timespec;
854 struct timespec c_timespec;
855 struct timespec a_timespec;
856 struct timespec m_timespec;
857 struct timespec write_time_ts;
858 struct ea_list *ea_list = NULL;
859 NTSTATUS status;
860 size_t param_len;
861 uint64_t allocation_size;
862 int oplock_request;
863 uint8_t oplock_granted;
864 TALLOC_CTX *ctx = talloc_tos();
865
866 DEBUG(5,("call_nt_transact_create\n"));
867
868 /*
869 * If it's an IPC, use the pipe handler.
870 */
871
872 if (IS_IPC(conn)) {
873 if (lp_nt_pipe_support()) {
874 do_nt_transact_create_pipe(
875 conn, req,
876 ppsetup, setup_count,
877 ppparams, parameter_count,
878 ppdata, data_count);
879 goto out;
880 }
881 reply_doserror(req, ERRDOS, ERRnoaccess);
882 goto out;
883 }
884
885 /*
886 * Ensure minimum number of parameters sent.
887 */
888
889 if(parameter_count < 54) {
890 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
891 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
892 goto out;
893 }
894
895 flags = IVAL(params,0);
896 access_mask = IVAL(params,8);
897 file_attributes = IVAL(params,20);
898 share_access = IVAL(params,24);
899 create_disposition = IVAL(params,28);
900 create_options = IVAL(params,32);
901 sd_len = IVAL(params,36);
902 ea_len = IVAL(params,40);
903 root_dir_fid = (uint16)IVAL(params,4);
904 allocation_size = (uint64_t)IVAL(params,12);
905 #ifdef LARGE_SMB_OFF_T
906 allocation_size |= (((uint64_t)IVAL(params,16)) << 32);
907 #endif
908
909 /*
910 * we need to remove ignored bits when they come directly from the client
911 * because we reuse some of them for internal stuff
912 */
913 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
914
915 /* Ensure the data_len is correct for the sd and ea values given. */
916 if ((ea_len + sd_len > data_count)
917 || (ea_len > data_count) || (sd_len > data_count)
918 || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
919 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
920 "%u, data_count = %u\n", (unsigned int)ea_len,
921 (unsigned int)sd_len, (unsigned int)data_count));
922 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
923 goto out;
924 }
925
926 if (sd_len) {
927 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
928 sd_len));
929
930 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
931 &sd);
932 if (!NT_STATUS_IS_OK(status)) {
933 DEBUG(10, ("call_nt_transact_create: "
934 "unmarshall_sec_desc failed: %s\n",
935 nt_errstr(status)));
936 reply_nterror(req, status);
937 goto out;
938 }
939 }
940
941 if (ea_len) {
942 if (!lp_ea_support(SNUM(conn))) {
943 DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
944 "EA's not supported.\n",
945 (unsigned int)ea_len));
946 reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
947 goto out;
948 }
949
950 if (ea_len < 10) {
951 DEBUG(10,("call_nt_transact_create - ea_len = %u - "
952 "too small (should be more than 10)\n",
953 (unsigned int)ea_len ));
954 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
955 goto out;
956 }
957
958 /* We have already checked that ea_len <= data_count here. */
959 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
960 ea_len);
961 if (ea_list == NULL) {
962 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
963 goto out;
964 }
965 }
966
967 srvstr_get_path(ctx, params, req->flags2, &fname,
968 params+53, parameter_count-53,
969 STR_TERMINATE, &status);
970 if (!NT_STATUS_IS_OK(status)) {
971 reply_nterror(req, status);
972 goto out;
973 }
974
975 status = filename_convert(ctx,
976 conn,
977 req->flags2 & FLAGS2_DFS_PATHNAMES,
978 fname,
979 0,
980 NULL,
981 &smb_fname);
982
983 if (!NT_STATUS_IS_OK(status)) {
984 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
985 reply_botherror(req,
986 NT_STATUS_PATH_NOT_COVERED,
987 ERRSRV, ERRbadpath);
988 goto out;
989 }
990 reply_nterror(req, status);
991 goto out;
992 }
993
994 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
995 if (oplock_request) {
996 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
997 ? BATCH_OPLOCK : 0;
998 }
999
1000 status = SMB_VFS_CREATE_FILE(
1001 conn, /* conn */
1002 req, /* req */
1003 root_dir_fid, /* root_dir_fid */
1004 smb_fname, /* fname */
1005 access_mask, /* access_mask */
1006 share_access, /* share_access */
1007 create_disposition, /* create_disposition*/
1008 create_options, /* create_options */
1009 file_attributes, /* file_attributes */
1010 oplock_request, /* oplock_request */
1011 allocation_size, /* allocation_size */
1012 sd, /* sd */
1013 ea_list, /* ea_list */
1014 &fsp, /* result */
1015 &info); /* pinfo */
1016
1017 if(!NT_STATUS_IS_OK(status)) {
1018 if (open_was_deferred(req->mid)) {
1019 /* We have re-scheduled this call, no error. */
1020 return;
1021 }
1022 reply_openerror(req, status);
1023 goto out;
1024 }
1025
1026 /* Ensure we're pointing at the correct stat struct. */
1027 TALLOC_FREE(smb_fname);
1028 smb_fname = fsp->fsp_name;
1029
1030 /*
1031 * If the caller set the extended oplock request bit
1032 * and we granted one (by whatever means) - set the
1033 * correct bit for extended oplock reply.
1034 */
1035
1036 if (oplock_request &&
1037 (lp_fake_oplocks(SNUM(conn))
1038 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1039
1040 /*
1041 * Exclusive oplock granted
1042 */
1043
1044 if (flags & REQUEST_BATCH_OPLOCK) {
1045 oplock_granted = BATCH_OPLOCK_RETURN;
1046 } else {
1047 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1048 }
1049 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1050 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1051 } else {
1052 oplock_granted = NO_OPLOCK_RETURN;
1053 }
1054
1055 file_len = smb_fname->st.st_ex_size;
1056 fattr = dos_mode(conn, smb_fname);
1057 if (fattr == 0) {
1058 fattr = FILE_ATTRIBUTE_NORMAL;
1059 }
1060
1061 /* Realloc the size of parameters and data we will return */
1062 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1063 /* Extended response is 32 more byyes. */
1064 param_len = 101;
1065 } else {
1066 param_len = 69;
1067 }
1068 params = nttrans_realloc(ppparams, param_len);
1069 if(params == NULL) {
1070 reply_doserror(req, ERRDOS, ERRnomem);
1071 goto out;
1072 }
1073
1074 p = params;
1075 SCVAL(p, 0, oplock_granted);
1076
1077 p += 2;
1078 SSVAL(p,0,fsp->fnum);
1079 p += 2;
1080 if ((create_disposition == FILE_SUPERSEDE)
1081 && (info == FILE_WAS_OVERWRITTEN)) {
1082 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1083 } else {
1084 SIVAL(p,0,info);
1085 }
1086 p += 8;
1087
1088 /* Deal with other possible opens having a modified
1089 write time. JRA. */
1090 ZERO_STRUCT(write_time_ts);
1091 get_file_infos(fsp->file_id, NULL, &write_time_ts);
1092 if (!null_timespec(write_time_ts)) {
1093 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
1094 }
1095
1096 /* Create time. */
1097 create_timespec = get_create_timespec(conn, fsp, smb_fname);
1098 a_timespec = smb_fname->st.st_ex_atime;
1099 m_timespec = smb_fname->st.st_ex_mtime;
1100 c_timespec = get_change_timespec(conn, fsp, smb_fname);
1101
1102 if (lp_dos_filetime_resolution(SNUM(conn))) {
1103 dos_filetime_timespec(&create_timespec);
1104 dos_filetime_timespec(&a_timespec);
1105 dos_filetime_timespec(&m_timespec);
1106 dos_filetime_timespec(&c_timespec);
1107 }
1108
1109 put_long_date_timespec(p, create_timespec); /* create time. */
1110 p += 8;
1111 put_long_date_timespec(p, a_timespec); /* access time */
1112 p += 8;
1113 put_long_date_timespec(p, m_timespec); /* write time */
1114 p += 8;
1115 put_long_date_timespec(p, c_timespec); /* change time */
1116 p += 8;
1117 SIVAL(p,0,fattr); /* File Attributes. */
1118 p += 4;
1119 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1120 p += 8;
1121 SOFF_T(p,0,file_len);
1122 p += 8;
1123 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1124 SSVAL(p,2,0x7);
1125 }
1126 p += 4;
1127 SCVAL(p,0,fsp->is_directory ? 1 : 0);
1128
1129 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1130 uint32 perms = 0;
1131 p += 25;
1132 if (fsp->is_directory ||
1133 can_write_to_file(conn, smb_fname)) {
1134 perms = FILE_GENERIC_ALL;
1135 } else {
1136 perms = FILE_GENERIC_READ|FILE_EXECUTE;
1137 }
1138 SIVAL(p,0,perms);
1139 }
1140
1141 DEBUG(5,("call_nt_transact_create: open name = %s\n",
1142 smb_fname_str_dbg(smb_fname)));
1143
1144 /* Send the required number of replies */
1145 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1146 out:
1147 return;
1148 }
1149
1150 /****************************************************************************
1151 Reply to a NT CANCEL request.
1152 conn POINTER CAN BE NULL HERE !
1153 ****************************************************************************/
1154
1155 void reply_ntcancel(struct smb_request *req)
1156 {
1157 /*
1158 * Go through and cancel any pending change notifies.
1159 */
1160
1161 START_PROFILE(SMBntcancel);
1162 srv_cancel_sign_response(smbd_server_conn);
1163 remove_pending_change_notify_requests_by_mid(req->mid);
1164 remove_pending_lock_requests_by_mid(req->mid);
1165
1166 DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", req->mid));
1167
1168 END_PROFILE(SMBntcancel);
1169 return;
1170 }
1171
1172 /****************************************************************************
1173 Copy a file.
1174 ****************************************************************************/
1175
1176 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1177 connection_struct *conn,
1178 struct smb_request *req,
1179 struct smb_filename *smb_fname_src,
1180 struct smb_filename *smb_fname_dst,
1181 uint32 attrs)
1182 {
1183 files_struct *fsp1,*fsp2;
1184 uint32 fattr;
1185 int info;
1186 SMB_OFF_T ret=-1;
1187 NTSTATUS status = NT_STATUS_OK;
1188 char *parent;
1189
1190 if (!CAN_WRITE(conn)) {
1191 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1192 goto out;
1193 }
1194
1195 /* Source must already exist. */
1196 if (!VALID_STAT(smb_fname_src->st)) {
1197 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1198 goto out;
1199 }
1200
1201 /* Ensure attributes match. */
1202 fattr = dos_mode(conn, smb_fname_src);
1203 if ((fattr & ~attrs) & (aHIDDEN | aSYSTEM)) {
1204 status = NT_STATUS_NO_SUCH_FILE;
1205 goto out;
1206 }
1207
1208 /* Disallow if dst file already exists. */
1209 if (VALID_STAT(smb_fname_dst->st)) {
1210 status = NT_STATUS_OBJECT_NAME_COLLISION;
1211 goto out;
1212 }
1213
1214 /* No links from a directory. */
1215 if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1216 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1217 goto out;
1218 }
1219
1220 DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1221 smb_fname_str_dbg(smb_fname_src),
1222 smb_fname_str_dbg(smb_fname_dst)));
1223
1224 status = SMB_VFS_CREATE_FILE(
1225 conn, /* conn */
1226 req, /* req */
1227 0, /* root_dir_fid */
1228 smb_fname_src, /* fname */
1229 FILE_READ_DATA, /* access_mask */
1230 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1231 FILE_SHARE_DELETE),
1232 FILE_OPEN, /* create_disposition*/
1233 0, /* create_options */
1234 FILE_ATTRIBUTE_NORMAL, /* file_attributes */
1235 NO_OPLOCK, /* oplock_request */
1236 0, /* allocation_size */
1237 NULL, /* sd */
1238 NULL, /* ea_list */
1239 &fsp1, /* result */
1240 &info); /* pinfo */
1241
1242 if (!NT_STATUS_IS_OK(status)) {
1243 goto out;
1244 }
1245
1246 status = SMB_VFS_CREATE_FILE(
1247 conn, /* conn */
1248 req, /* req */
1249 0, /* root_dir_fid */
1250 smb_fname_dst, /* fname */
1251 FILE_WRITE_DATA, /* access_mask */
1252 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1253 FILE_SHARE_DELETE),
1254 FILE_CREATE, /* create_disposition*/
1255 0, /* create_options */
1256 fattr, /* file_attributes */
1257 NO_OPLOCK, /* oplock_request */
1258 0, /* allocation_size */
1259 NULL, /* sd */
1260 NULL, /* ea_list */
1261 &fsp2, /* result */
1262 &info); /* pinfo */
1263
1264 if (!NT_STATUS_IS_OK(status)) {
1265 close_file(NULL, fsp1, ERROR_CLOSE);
1266 goto out;
1267 }
1268
1269 if (smb_fname_src->st.st_ex_size) {
1270 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1271 }
1272
1273 /*
1274 * As we are opening fsp1 read-only we only expect
1275 * an error on close on fsp2 if we are out of space.
1276 * Thus we don't look at the error return from the
1277 * close of fsp1.
1278 */
1279 close_file(NULL, fsp1, NORMAL_CLOSE);
1280
1281 /* Ensure the modtime is set correctly on the destination file. */
1282 set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1283
1284 status = close_file(NULL, fsp2, NORMAL_CLOSE);
1285
1286 /* Grrr. We have to do this as open_file_ntcreate adds aARCH when it
1287 creates the file. This isn't the correct thing to do in the copy
1288 case. JRA */
1289 if (!parent_dirname(talloc_tos(), smb_fname_dst->base_name, &parent,
1290 NULL)) {
1291 status = NT_STATUS_NO_MEMORY;
1292 goto out;
1293 }
1294 file_set_dosmode(conn, smb_fname_dst, fattr, parent, false);
1295 TALLOC_FREE(parent);
1296
1297 if (ret < (SMB_OFF_T)smb_fname_src->st.st_ex_size) {
1298 status = NT_STATUS_DISK_FULL;
1299 goto out;
1300 }
1301 out:
1302 if (!NT_STATUS_IS_OK(status)) {
1303 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1304 nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1305 smb_fname_str_dbg(smb_fname_dst)));
1306 }
1307
1308 return status;
1309 }
1310
1311 /****************************************************************************
1312 Reply to a NT rename request.
1313 ****************************************************************************/
1314
1315 void reply_ntrename(struct smb_request *req)
1316 {
1317 connection_struct *conn = req->conn;
1318 struct smb_filename *smb_fname_old = NULL;
1319 struct smb_filename *smb_fname_new = NULL;
1320 char *oldname = NULL;
1321 char *newname = NULL;
1322 const char *p;
1323 NTSTATUS status;
1324 bool src_has_wcard = False;
1325 bool dest_has_wcard = False;
1326 uint32 attrs;
1327 uint32_t ucf_flags_src = 0;
1328 uint32_t ucf_flags_dst = 0;
1329 uint16 rename_type;
1330 TALLOC_CTX *ctx = talloc_tos();
1331
1332 START_PROFILE(SMBntrename);
1333
1334 if (req->wct < 4) {
1335 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1336 goto out;
1337 }
1338
1339 attrs = SVAL(req->vwv+0, 0);
1340 rename_type = SVAL(req->vwv+1, 0);
1341
1342 p = (const char *)req->buf + 1;
1343 p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1344 &status, &src_has_wcard);
1345 if (!NT_STATUS_IS_OK(status)) {
1346 reply_nterror(req, status);
1347 goto out;
1348 }
1349
1350 if (ms_has_wild(oldname)) {
1351 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1352 goto out;
1353 }
1354
1355 p++;
1356 p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1357 &status, &dest_has_wcard);
1358 if (!NT_STATUS_IS_OK(status)) {
1359 reply_nterror(req, status);
1360 goto out;
1361 }
1362
1363 /* The newname must begin with a ':' if the oldname contains a ':'. */
1364 if (strchr_m(oldname, ':') && (newname[0] != ':')) {
1365 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1366 goto out;
1367 }
1368
1369 /*
1370 * If this is a rename operation, allow wildcards and save the
1371 * destination's last component.
1372 */
1373 if (rename_type == RENAME_FLAG_RENAME) {
1374 ucf_flags_src = UCF_COND_ALLOW_WCARD_LCOMP;
1375 ucf_flags_dst = UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1376 }
1377
1378 /* rename_internals() calls unix_convert(), so don't call it here. */
1379 status = filename_convert(ctx, conn,
1380 req->flags2 & FLAGS2_DFS_PATHNAMES,
1381 oldname,
1382 ucf_flags_src,
1383 NULL,
1384 &smb_fname_old);
1385 if (!NT_STATUS_IS_OK(status)) {
1386 if (NT_STATUS_EQUAL(status,
1387 NT_STATUS_PATH_NOT_COVERED)) {
1388 reply_botherror(req,
1389 NT_STATUS_PATH_NOT_COVERED,
1390 ERRSRV, ERRbadpath);
1391 goto out;
1392 }
1393 reply_nterror(req, status);
1394 goto out;
1395 }
1396
1397 status = filename_convert(ctx, conn,
1398 req->flags2 & FLAGS2_DFS_PATHNAMES,
1399 newname,
1400 ucf_flags_dst,
1401 &dest_has_wcard,
1402 &smb_fname_new);
1403 if (!NT_STATUS_IS_OK(status)) {
1404 if (NT_STATUS_EQUAL(status,
1405 NT_STATUS_PATH_NOT_COVERED)) {
1406 reply_botherror(req,
1407 NT_STATUS_PATH_NOT_COVERED,
1408 ERRSRV, ERRbadpath);
1409 goto out;
1410 }
1411 reply_nterror(req, status);
1412 goto out;
1413 }
1414
1415 DEBUG(3,("reply_ntrename: %s -> %s\n",
1416 smb_fname_str_dbg(smb_fname_old),
1417 smb_fname_str_dbg(smb_fname_new)));
1418
1419 switch(rename_type) {
1420 case RENAME_FLAG_RENAME:
1421 status = rename_internals(ctx, conn, req,
1422 smb_fname_old, smb_fname_new,
1423 attrs, False, src_has_wcard,
1424 dest_has_wcard,
1425 DELETE_ACCESS);
1426 break;
1427 case RENAME_FLAG_HARD_LINK:
1428 if (src_has_wcard || dest_has_wcard) {
1429 /* No wildcards. */
1430 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1431 } else {
1432 status = hardlink_internals(ctx, conn,
1433 smb_fname_old,
1434 smb_fname_new);
1435 }
1436 break;
1437 case RENAME_FLAG_COPY:
1438 if (src_has_wcard || dest_has_wcard) {
1439 /* No wildcards. */
1440 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1441 } else {
1442 status = copy_internals(ctx, conn, req,
1443 smb_fname_old,
1444 smb_fname_new,
1445 attrs);
1446 }
1447 break;
1448 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1449 status = NT_STATUS_INVALID_PARAMETER;
1450 break;
1451 default:
1452 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1453 break;
1454 }
1455
1456 if (!NT_STATUS_IS_OK(status)) {
1457 if (open_was_deferred(req->mid)) {
1458 /* We have re-scheduled this call. */
1459 goto out;
1460 }
1461
1462 reply_nterror(req, status);
1463 goto out;
1464 }
1465
1466 reply_outbuf(req, 0, 0);
1467 out:
1468 END_PROFILE(SMBntrename);
1469 return;
1470 }
1471
1472 /****************************************************************************
1473 Reply to a notify change - queue the request and
1474 don't allow a directory to be opened.
1475 ****************************************************************************/
1476
1477 static void smbd_smb1_notify_reply(struct smb_request *req,
1478 NTSTATUS error_code,
1479 uint8_t *buf, size_t len)
1480 {
1481 send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1482 }
1483
1484 static void call_nt_transact_notify_change(connection_struct *conn,
1485 struct smb_request *req,
1486 uint16 **ppsetup,
1487 uint32 setup_count,
1488 char **ppparams,
1489 uint32 parameter_count,
1490 char **ppdata, uint32 data_count,
1491 uint32 max_data_count,
1492 uint32 max_param_count)
1493 {
1494 uint16 *setup = *ppsetup;
1495 files_struct *fsp;
1496 uint32 filter;
1497 NTSTATUS status;
1498 bool recursive;
1499
1500 if(setup_count < 6) {
1501 reply_doserror(req, ERRDOS, ERRbadfunc);
1502 return;
1503 }
1504
1505 fsp = file_fsp(req, SVAL(setup,4));
1506 filter = IVAL(setup, 0);
1507 recursive = (SVAL(setup, 6) != 0) ? True : False;
1508
1509 DEBUG(3,("call_nt_transact_notify_change\n"));
1510
1511 if(!fsp) {
1512 reply_doserror(req, ERRDOS, ERRbadfid);
1513 return;
1514 }
1515
1516 {
1517 char *filter_string;
1518
1519 if (!(filter_string = notify_filter_string(NULL, filter))) {
1520 reply_nterror(req,NT_STATUS_NO_MEMORY);
1521 return;
1522 }
1523
1524 DEBUG(3,("call_nt_transact_notify_change: notify change "
1525 "called on %s, filter = %s, recursive = %d\n",
1526 fsp_str_dbg(fsp), filter_string, recursive));
1527
1528 TALLOC_FREE(filter_string);
1529 }
1530
1531 if((!fsp->is_directory) || (conn != fsp->conn)) {
1532 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1533 return;
1534 }
1535
1536 if (fsp->notify == NULL) {
1537
1538 status = change_notify_create(fsp, filter, recursive);
1539
1540 if (!NT_STATUS_IS_OK(status)) {
1541 DEBUG(10, ("change_notify_create returned %s\n",
1542 nt_errstr(status)));
1543 reply_nterror(req, status);
1544 return;
1545 }
1546 }
1547
1548 if (fsp->notify->num_changes != 0) {
1549
1550 /*
1551 * We've got changes pending, respond immediately
1552 */
1553
1554 /*
1555 * TODO: write a torture test to check the filtering behaviour
1556 * here.
1557 */
1558
1559 change_notify_reply(fsp->conn, req,
1560 NT_STATUS_OK,
1561 max_param_count,
1562 fsp->notify,
1563 smbd_smb1_notify_reply);
1564
1565 /*
1566 * change_notify_reply() above has independently sent its
1567 * results
1568 */
1569 return;
1570 }
1571
1572 /*
1573 * No changes pending, queue the request
1574 */
1575
1576 status = change_notify_add_request(req,
1577 max_param_count,
1578 filter,
1579 recursive, fsp,
1580 smbd_smb1_notify_reply);
1581 if (!NT_STATUS_IS_OK(status)) {
1582 reply_nterror(req, status);
1583 }
1584 return;
1585 }
1586
1587 /****************************************************************************
1588 Reply to an NT transact rename command.
1589 ****************************************************************************/
1590
1591 static void call_nt_transact_rename(connection_struct *conn,
1592 struct smb_request *req,
1593 uint16 **ppsetup, uint32 setup_count,
1594 char **ppparams, uint32 parameter_count,
1595 char **ppdata, uint32 data_count,
1596 uint32 max_data_count)
1597 {
1598 char *params = *ppparams;
1599 char *new_name = NULL;
1600 files_struct *fsp = NULL;
1601 bool dest_has_wcard = False;
1602 NTSTATUS status;
1603 TALLOC_CTX *ctx = talloc_tos();
1604
1605 if(parameter_count < 5) {
1606 reply_doserror(req, ERRDOS, ERRbadfunc);
1607 return;
1608 }
1609
1610 fsp = file_fsp(req, SVAL(params, 0));
1611 if (!check_fsp(conn, req, fsp)) {
1612 return;
1613 }
1614 srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1615 parameter_count - 4,
1616 STR_TERMINATE, &status, &dest_has_wcard);
1617 if (!NT_STATUS_IS_OK(status)) {
1618 reply_nterror(req, status);
1619 return;
1620 }
1621
1622 /*
1623 * W2K3 ignores this request as the RAW-RENAME test
1624 * demonstrates, so we do.
1625 */
1626 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1627
1628 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1629 fsp_str_dbg(fsp), new_name));
1630
1631 return;
1632 }
1633
1634 /******************************************************************************
1635 Fake up a completely empty SD.
1636 *******************************************************************************/
1637
1638 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
1639 {
1640 size_t sd_size;
1641
1642 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1643 if(!*ppsd) {
1644 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1645 return NT_STATUS_NO_MEMORY;
1646 }
1647
1648 return NT_STATUS_OK;
1649 }
1650
1651 /****************************************************************************
1652 Reply to query a security descriptor.
1653 ****************************************************************************/
1654
1655 static void call_nt_transact_query_security_desc(connection_struct *conn,
1656 struct smb_request *req,
1657 uint16 **ppsetup,
1658 uint32 setup_count,
1659 char **ppparams,
1660 uint32 parameter_count,
1661 char **ppdata,
1662 uint32 data_count,
1663 uint32 max_data_count)
1664 {
1665 char *params = *ppparams;
1666 char *data = *ppdata;
1667 SEC_DESC *psd = NULL;
1668 size_t sd_size;
1669 uint32 security_info_wanted;
1670 files_struct *fsp = NULL;
1671 NTSTATUS status;
1672 DATA_BLOB blob;
1673
1674 if(parameter_count < 8) {
1675 reply_doserror(req, ERRDOS, ERRbadfunc);
1676 return;
1677 }
1678
1679 fsp = file_fsp(req, SVAL(params,0));
1680 if(!fsp) {
1681 reply_doserror(req, ERRDOS, ERRbadfid);
1682 return;
1683 }
1684
1685 security_info_wanted = IVAL(params,4);
1686
1687 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
1688 "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
1689 (unsigned int)security_info_wanted));
1690
1691 params = nttrans_realloc(ppparams, 4);
1692 if(params == NULL) {
1693 reply_doserror(req, ERRDOS, ERRnomem);
1694 return;
1695 }
1696
1697 /*
1698 * Get the permissions to return.
1699 */
1700
1701 if (!lp_nt_acl_support(SNUM(conn))) {
1702 status = get_null_nt_acl(talloc_tos(), &psd);
1703 } else {
1704 status = SMB_VFS_FGET_NT_ACL(
1705 fsp, security_info_wanted, &psd);
1706 }
1707 if (!NT_STATUS_IS_OK(status)) {
1708 reply_nterror(req, status);
1709 return;
1710 }
1711
1712 /* If the SACL/DACL is NULL, but was requested, we mark that it is
1713 * present in the reply to match Windows behavior */
1714 if (psd->sacl == NULL &&
1715 security_info_wanted & SACL_SECURITY_INFORMATION)
1716 psd->type |= SEC_DESC_SACL_PRESENT;
1717 if (psd->dacl == NULL &&
1718 security_info_wanted & DACL_SECURITY_INFORMATION)
1719 psd->type |= SEC_DESC_DACL_PRESENT;
1720
1721 sd_size = ndr_size_security_descriptor(psd, NULL, 0);
1722
1723 DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %lu.\n",(unsigned long)sd_size));
1724
1725 if (DEBUGLEVEL >= 10) {
1726 DEBUG(10,("call_nt_transact_query_security_desc for file %s\n",
1727 fsp_str_dbg(fsp)));
1728 NDR_PRINT_DEBUG(security_descriptor, psd);
1729 }
1730
1731 SIVAL(params,0,(uint32)sd_size);
1732
1733 if (max_data_count < sd_size) {
1734 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1735 params, 4, *ppdata, 0);
1736 return;
1737 }
1738
1739 /*
1740 * Allocate the data we will point this at.
1741 */
1742
1743 data = nttrans_realloc(ppdata, sd_size);
1744 if(data == NULL) {
1745 reply_doserror(req, ERRDOS, ERRnomem);
1746 return;
1747 }
1748
1749 status = marshall_sec_desc(talloc_tos(), psd,
1750 &blob.data, &blob.length);
1751
1752 if (!NT_STATUS_IS_OK(status)) {
1753 reply_nterror(req, status);
1754 return;
1755 }
1756
1757 SMB_ASSERT(sd_size == blob.length);
1758 memcpy(data, blob.data, sd_size);
1759
1760 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
1761
1762 return;
1763 }
1764
1765 /****************************************************************************
1766 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
1767 ****************************************************************************/
1768
1769 static void call_nt_transact_set_security_desc(connection_struct *conn,
1770 struct smb_request *req,
1771 uint16 **ppsetup,
1772 uint32 setup_count,
1773 char **ppparams,
1774 uint32 parameter_count,
1775 char **ppdata,
1776 uint32 data_count,
1777 uint32 max_data_count)
1778 {
1779 char *params= *ppparams;
1780 char *data = *ppdata;
1781 files_struct *fsp = NULL;
1782 uint32 security_info_sent = 0;
1783 NTSTATUS status;
1784
1785 if(parameter_count < 8) {
1786 reply_doserror(req, ERRDOS, ERRbadfunc);
1787 return;
1788 }
1789
1790 if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
1791 reply_doserror(req, ERRDOS, ERRbadfid);
1792 return;
1793 }
1794
1795 if(!lp_nt_acl_support(SNUM(conn))) {
1796 goto done;
1797 }
1798
1799 security_info_sent = IVAL(params,4);
1800
1801 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
1802 fsp_str_dbg(fsp), (unsigned int)security_info_sent));
1803
1804 if (data_count == 0) {
1805 reply_doserror(req, ERRDOS, ERRnoaccess);
1806 return;
1807 }
1808
1809 status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
1810
1811 if (!NT_STATUS_IS_OK(status)) {
1812 reply_nterror(req, status);
1813 return;
1814 }
1815
1816 done:
1817 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1818 return;
1819 }
1820
1821 /****************************************************************************
1822 Reply to NT IOCTL
1823 ****************************************************************************/
1824
1825 static void call_nt_transact_ioctl(connection_struct *conn,
1826 struct smb_request *req,
1827 uint16 **ppsetup, uint32 setup_count,
1828 char **ppparams, uint32 parameter_count,
1829 char **ppdata, uint32 data_count,
1830 uint32 max_data_count)
1831 {
1832 uint32 function;
1833 uint16 fidnum;
1834 files_struct *fsp;
1835 uint8 isFSctl;
1836 uint8 compfilter;
1837 char *pdata = *ppdata;
1838
1839 if (setup_count != 8) {
1840 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
1841 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1842 return;
1843 }
1844
1845 function = IVAL(*ppsetup, 0);
1846 fidnum = SVAL(*ppsetup, 4);
1847 isFSctl = CVAL(*ppsetup, 6);
1848 compfilter = CVAL(*ppsetup, 7);
1849
1850 DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
1851 function, fidnum, isFSctl, compfilter));
1852
1853 fsp=file_fsp(req, fidnum);
1854 /* this check is done in each implemented function case for now
1855 because I don't want to break anything... --metze
1856 FSP_BELONGS_CONN(fsp,conn);*/
1857
1858 SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
1859
1860 switch (function) {
1861 case FSCTL_SET_SPARSE:
1862 /* pretend this succeeded - tho strictly we should
1863 mark the file sparse (if the local fs supports it)
1864 so we can know if we need to pre-allocate or not */
1865
1866 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum));
1867 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1868 return;
1869
1870 case FSCTL_CREATE_OR_GET_OBJECT_ID:
1871 {
1872 unsigned char objid[16];
1873
1874 /* This should return the object-id on this file.
1875 * I think I'll make this be the inode+dev. JRA.
1876 */
1877
1878 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
1879
1880 if (!fsp_belongs_conn(conn, req, fsp)) {
1881 return;
1882 }
1883
1884 data_count = 64;
1885 pdata = nttrans_realloc(ppdata, data_count);
1886 if (pdata == NULL) {
1887 reply_nterror(req, NT_STATUS_NO_MEMORY);
1888 return;
1889 }
1890
1891 /* For backwards compatibility only store the dev/inode. */
1892 push_file_id_16(pdata, &fsp->file_id);
1893 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
1894 push_file_id_16(pdata+32, &fsp->file_id);
1895 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
1896 pdata, data_count);
1897 return;
1898 }
1899
1900 case FSCTL_GET_REPARSE_POINT:
1901 /* pretend this fail - my winXP does it like this
1902 * --metze
1903 */
1904
1905 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1906 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1907 return;
1908
1909 case FSCTL_SET_REPARSE_POINT:
1910 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
1911 * --metze
1912 */
1913
1914 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1915 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1916 return;
1917
1918 case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
1919 {
1920 /*
1921 * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
1922 * and return their volume names. If max_data_count is 16, then it is just
1923 * asking for the number of volumes and length of the combined names.
1924 *
1925 * pdata is the data allocated by our caller, but that uses
1926 * total_data_count (which is 0 in our case) rather than max_data_count.
1927 * Allocate the correct amount and return the pointer to let
1928 * it be deallocated when we return.
1929 */
1930 SHADOW_COPY_DATA *shadow_data = NULL;
1931 TALLOC_CTX *shadow_mem_ctx = NULL;
1932 bool labels = False;
1933 uint32 labels_data_count = 0;
1934 uint32 i;
1935 char *cur_pdata;
1936
1937 if (!fsp_belongs_conn(conn, req, fsp)) {
1938 return;
1939 }
1940
1941 if (max_data_count < 16) {
1942 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
1943 max_data_count));
1944 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1945 return;
1946 }
1947
1948 if (max_data_count > 16) {
1949 labels = True;
1950 }
1951
1952 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
1953 if (shadow_mem_ctx == NULL) {
1954 DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
1955 reply_nterror(req, NT_STATUS_NO_MEMORY);
1956 return;
1957 }
1958
1959 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
1960 if (shadow_data == NULL) {
1961 DEBUG(0,("TALLOC_ZERO() failed!\n"));
1962 talloc_destroy(shadow_mem_ctx);
1963 reply_nterror(req, NT_STATUS_NO_MEMORY);
1964 return;
1965 }
1966
1967 shadow_data->mem_ctx = shadow_mem_ctx;
1968
1969 /*
1970 * Call the VFS routine to actually do the work.
1971 */
1972 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
1973 talloc_destroy(shadow_data->mem_ctx);
1974 if (errno == ENOSYS) {
1975 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
1976 conn->connectpath));
1977 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1978 return;
1979 } else {
1980 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
1981 conn->connectpath));
1982 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
1983 return;
1984 }
1985 }
1986
1987 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
1988
1989 if (!labels) {
1990 data_count = 16;
1991 } else {
1992 data_count = 12+labels_data_count+4;
1993 }
1994
1995 if (max_data_count<data_count) {
1996 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
1997 max_data_count,data_count));
1998 talloc_destroy(shadow_data->mem_ctx);
1999 reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
2000 return;
2001 }
2002
2003 pdata = nttrans_realloc(ppdata, data_count);
2004 if (pdata == NULL) {
2005 talloc_destroy(shadow_data->mem_ctx);
2006 reply_nterror(req, NT_STATUS_NO_MEMORY);
2007 return;
2008 }
2009
2010 cur_pdata = pdata;
2011
2012 /* num_volumes 4 bytes */
2013 SIVAL(pdata,0,shadow_data->num_volumes);
2014
2015 if (labels) {
2016 /* num_labels 4 bytes */
2017 SIVAL(pdata,4,shadow_data->num_volumes);
2018 }
2019
2020 /* needed_data_count 4 bytes */
2021 SIVAL(pdata,8,labels_data_count);
2022
2023 cur_pdata+=12;
2024
2025 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
2026 shadow_data->num_volumes, fsp_str_dbg(fsp)));
2027 if (labels && shadow_data->labels) {
2028 for (i=0;i<shadow_data->num_volumes;i++) {
2029 srvstr_push(pdata, req->flags2,
2030 cur_pdata, shadow_data->labels[i],
2031 2*sizeof(SHADOW_COPY_LABEL),
2032 STR_UNICODE|STR_TERMINATE);
2033 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
2034 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
2035 }
2036 }
2037
2038 talloc_destroy(shadow_data->mem_ctx);
2039
2040 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2041 pdata, data_count);
2042
2043 return;
2044 }
2045
2046 case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
2047 {
2048 /* pretend this succeeded -
2049 *
2050 * we have to send back a list with all files owned by this SID
2051 *
2052 * but I have to check that --metze
2053 */
2054 DOM_SID sid;
2055 uid_t uid;
2056 size_t sid_len = MIN(data_count-4,SID_MAX_SIZE);
2057
2058 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
2059
2060 if (!fsp_belongs_conn(conn, req, fsp)) {
2061 return;
2062 }
2063
2064 /* unknown 4 bytes: this is not the length of the sid :-( */
2065 /*unknown = IVAL(pdata,0);*/
2066
2067 sid_parse(pdata+4,sid_len,&sid);
2068 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
2069
2070 if (!sid_to_uid(&sid, &uid)) {
2071 DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
2072 sid_string_dbg(&sid),
2073 (unsigned long)sid_len));
2074 uid = (-1);
2075 }
2076
2077 /* we can take a look at the find source :-)
2078 *
2079 * find ./ -uid $uid -name '*' is what we need here
2080 *
2081 *
2082 * and send 4bytes len and then NULL terminated unicode strings
2083 * for each file
2084 *
2085 * but I don't know how to deal with the paged results
2086 * (maybe we can hang the result anywhere in the fsp struct)
2087 *
2088 * we don't send all files at once
2089 * and at the next we should *not* start from the beginning,
2090 * so we have to cache the result
2091 *
2092 * --metze
2093 */
2094
2095 /* this works for now... */
2096 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2097 return;
2098 }
2099 default:
2100 if (!logged_ioctl_message) {
2101 logged_ioctl_message = true; /* Only print this once... */
2102 DEBUG(0,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n",
2103 function));
2104 }
2105 }
2106
2107 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2108 }
2109
2110
2111 #ifdef HAVE_SYS_QUOTAS
2112 /****************************************************************************
2113 Reply to get user quota
2114 ****************************************************************************/
2115
2116 static void call_nt_transact_get_user_quota(connection_struct *conn,
2117 struct smb_request *req,
2118 uint16 **ppsetup,
2119 uint32 setup_count,
2120 char **ppparams,
2121 uint32 parameter_count,
2122 char **ppdata,
2123 uint32 data_count,
2124 uint32 max_data_count)
2125 {
2126 NTSTATUS nt_status = NT_STATUS_OK;
2127 char *params = *ppparams;
2128 char *pdata = *ppdata;
2129 char *entry;
2130 int data_len=0,param_len=0;
2131 int qt_len=0;
2132 int entry_len = 0;
2133 files_struct *fsp = NULL;
2134 uint16 level = 0;
2135 size_t sid_len;
2136 DOM_SID sid;
2137 bool start_enum = True;
2138 SMB_NTQUOTA_STRUCT qt;
2139 SMB_NTQUOTA_LIST *tmp_list;
2140 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2141
2142 ZERO_STRUCT(qt);
2143
2144 /* access check */
2145 if (conn->server_info->utok.uid != 0) {
2146 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2147 "[%s]\n", lp_servicename(SNUM(conn)),
2148 conn->server_info->unix_name));
2149 reply_doserror(req, ERRDOS, ERRnoaccess);
2150 return;
2151 }
2152
2153 /*
2154 * Ensure minimum number of parameters sent.
2155 */
2156
2157 if (parameter_count < 4) {
2158 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2159 reply_doserror(req, ERRDOS, ERRinvalidparam);
2160 return;
2161 }
2162
2163 /* maybe we can check the quota_fnum */
2164 fsp = file_fsp(req, SVAL(params,0));
2165 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2166 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2167 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2168 return;
2169 }
2170
2171 /* the NULL pointer checking for fsp->fake_file_handle->pd
2172 * is done by CHECK_NTQUOTA_HANDLE_OK()
2173 */
2174 qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2175
2176 level = SVAL(params,2);
2177
2178 /* unknown 12 bytes leading in params */
2179
2180 switch (level) {
2181 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2182 /* seems that we should continue with the enum here --metze */
2183
2184 if (qt_handle->quota_list!=NULL &&
2185 qt_handle->tmp_list==NULL) {
2186
2187 /* free the list */
2188 free_ntquota_list(&(qt_handle->quota_list));
2189
2190 /* Realloc the size of parameters and data we will return */
2191 param_len = 4;
2192 params = nttrans_realloc(ppparams, param_len);
2193 if(params == NULL) {
2194 reply_doserror(req, ERRDOS, ERRnomem);
2195 return;
2196 }
2197
2198 data_len = 0;
2199 SIVAL(params,0,data_len);
2200
2201 break;
2202 }
2203
2204 start_enum = False;
2205
2206 case TRANSACT_GET_USER_QUOTA_LIST_START:
2207
2208 if (qt_handle->quota_list==NULL &&
2209 qt_handle->tmp_list==NULL) {
2210 start_enum = True;
2211 }
2212
2213 if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2214 reply_doserror(req, ERRSRV, ERRerror);
2215 return;
2216 }
2217
2218 /* Realloc the size of parameters and data we will return */
2219 param_len = 4;
2220 params = nttrans_realloc(ppparams, param_len);
2221 if(params == NULL) {
2222 reply_doserror(req, ERRDOS, ERRnomem);
2223 return;
2224 }
2225
2226 /* we should not trust the value in max_data_count*/
2227 max_data_count = MIN(max_data_count,2048);
2228
2229 pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2230 if(pdata == NULL) {
2231 reply_doserror(req, ERRDOS, ERRnomem);
2232 return;
2233 }
2234
2235 entry = pdata;
2236
2237 /* set params Size of returned Quota Data 4 bytes*/
2238 /* but set it later when we know it */
2239
2240 /* for each entry push the data */
2241
2242 if (start_enum) {
2243 qt_handle->tmp_list = qt_handle->quota_list;
2244 }
2245
2246 tmp_list = qt_handle->tmp_list;
2247
2248 for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2249 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2250
2251 sid_len = ndr_size_dom_sid(
2252 &tmp_list->quotas->sid, NULL, 0);
2253 entry_len = 40 + sid_len;
2254
2255 /* nextoffset entry 4 bytes */
2256 SIVAL(entry,0,entry_len);
2257
2258 /* then the len of the SID 4 bytes */
2259 SIVAL(entry,4,sid_len);
2260
2261 /* unknown data 8 bytes uint64_t */
2262 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2263
2264 /* the used disk space 8 bytes uint64_t */
2265 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2266
2267 /* the soft quotas 8 bytes uint64_t */
2268 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2269
2270 /* the hard quotas 8 bytes uint64_t */
2271 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2272
2273 /* and now the SID */
2274 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2275 }
2276
2277 qt_handle->tmp_list = tmp_list;
2278
2279 /* overwrite the offset of the last entry */
2280 SIVAL(entry-entry_len,0,0);
2281
2282 data_len = 4+qt_len;
2283 /* overwrite the params quota_data_len */
2284 SIVAL(params,0,data_len);
2285
2286 break;
2287
2288 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2289
2290 /* unknown 4 bytes IVAL(pdata,0) */
2291
2292 if (data_count < 8) {
2293 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2294 reply_doserror(req, ERRDOS, ERRunknownlevel);
2295 return;
2296 }
2297
2298 sid_len = IVAL(pdata,4);
2299 /* Ensure this is less than 1mb. */
2300 if (sid_len > (1024*1024)) {
2301 reply_doserror(req, ERRDOS, ERRnomem);
2302 return;
2303 }
2304
2305 if (data_count < 8+sid_len) {
2306 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2307 reply_doserror(req, ERRDOS, ERRunknownlevel);
2308 return;
2309 }
2310
2311 data_len = 4+40+sid_len;
2312
2313 if (max_data_count < data_len) {
2314 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2315 max_data_count, data_len));
2316 param_len = 4;
2317 SIVAL(params,0,data_len);
2318 data_len = 0;
2319 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2320 break;
2321 }
2322
2323 sid_parse(pdata+8,sid_len,&sid);
2324
2325 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2326 ZERO_STRUCT(qt);
2327 /*
2328 * we have to return zero's in all fields
2329 * instead of returning an error here
2330 * --metze
2331 */
2332 }
2333
2334 /* Realloc the size of parameters and data we will return */
2335 param_len = 4;
2336 params = nttrans_realloc(ppparams, param_len);
2337 if(params == NULL) {
2338 reply_doserror(req, ERRDOS, ERRnomem);
2339 return;
2340 }
2341
2342 pdata = nttrans_realloc(ppdata, data_len);
2343 if(pdata == NULL) {
2344 reply_doserror(req, ERRDOS, ERRnomem);
2345 return;
2346 }
2347
2348 entry = pdata;
2349
2350 /* set params Size of returned Quota Data 4 bytes*/
2351 SIVAL(params,0,data_len);
2352
2353 /* nextoffset entry 4 bytes */
2354 SIVAL(entry,0,0);
2355
2356 /* then the len of the SID 4 bytes */
2357 SIVAL(entry,4,sid_len);
2358
2359 /* unknown data 8 bytes uint64_t */
2360 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2361
2362 /* the used disk space 8 bytes uint64_t */
2363 SBIG_UINT(entry,16,qt.usedspace);
2364
2365 /* the soft quotas 8 bytes uint64_t */
2366 SBIG_UINT(entry,24,qt.softlim);
2367
2368 /* the hard quotas 8 bytes uint64_t */
2369 SBIG_UINT(entry,32,qt.hardlim);
2370
2371 /* and now the SID */
2372 sid_linearize(entry+40, sid_len, &sid);
2373
2374 break;
2375
2376 default:
2377 DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2378 reply_doserror(req, ERRSRV, ERRerror);
2379 return;
2380 break;
2381 }
2382
2383 send_nt_replies(conn, req, nt_status, params, param_len,
2384 pdata, data_len);
2385 }
2386
2387 /****************************************************************************
2388 Reply to set user quota
2389 ****************************************************************************/
2390
2391 static void call_nt_transact_set_user_quota(connection_struct *conn,
2392 struct smb_request *req,
2393 uint16 **ppsetup,
2394 uint32 setup_count,
2395 char **ppparams,
2396 uint32 parameter_count,
2397 char **ppdata,
2398 uint32 data_count,
2399 uint32 max_data_count)
2400 {
2401 char *params = *ppparams;
2402 char *pdata = *ppdata;
2403 int data_len=0,param_len=0;
2404 SMB_NTQUOTA_STRUCT qt;
2405 size_t sid_len;
2406 DOM_SID sid;
2407 files_struct *fsp = NULL;
2408
2409 ZERO_STRUCT(qt);
2410
2411 /* access check */
2412 if (conn->server_info->utok.uid != 0) {
2413 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2414 "[%s]\n", lp_servicename(SNUM(conn)),
2415 conn->server_info->unix_name));
2416 reply_doserror(req, ERRDOS, ERRnoaccess);
2417 return;
2418 }
2419
2420 /*
2421 * Ensure minimum number of parameters sent.
2422 */
2423
2424 if (parameter_count < 2) {
2425 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2426 reply_doserror(req, ERRDOS, ERRinvalidparam);
2427 return;
2428 }
2429
2430 /* maybe we can check the quota_fnum */
2431 fsp = file_fsp(req, SVAL(params,0));
2432 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2433 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2434 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2435 return;
2436 }
2437
2438 if (data_count < 40) {
2439 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2440 reply_doserror(req, ERRDOS, ERRunknownlevel);
2441 return;
2442 }
2443
2444 /* offset to next quota record.
2445 * 4 bytes IVAL(pdata,0)
2446 * unused here...
2447 */
2448
2449 /* sid len */
2450 sid_len = IVAL(pdata,4);
2451
2452 if (data_count < 40+sid_len) {
2453 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2454 reply_doserror(req, ERRDOS, ERRunknownlevel);
2455 return;
2456 }
2457
2458 /* unknown 8 bytes in pdata
2459 * maybe its the change time in NTTIME
2460 */
2461
2462 /* the used space 8 bytes (uint64_t)*/
2463 qt.usedspace = (uint64_t)IVAL(pdata,16);
2464 #ifdef LARGE_SMB_OFF_T
2465 qt.usedspace |= (((uint64_t)IVAL(pdata,20)) << 32);
2466 #else /* LARGE_SMB_OFF_T */
2467 if ((IVAL(pdata,20) != 0)&&
2468 ((qt.usedspace != 0xFFFFFFFF)||
2469 (IVAL(pdata,20)!=0xFFFFFFFF))) {
2470 /* more than 32 bits? */
2471 reply_doserror(req, ERRDOS, ERRunknownlevel);
2472 return;
2473 }
2474 #endif /* LARGE_SMB_OFF_T */
2475
2476 /* the soft quotas 8 bytes (uint64_t)*/
2477 qt.softlim = (uint64_t)IVAL(pdata,24);
2478 #ifdef LARGE_SMB_OFF_T
2479 qt.softlim |= (((uint64_t)IVAL(pdata,28)) << 32);
2480 #else /* LARGE_SMB_OFF_T */
2481 if ((IVAL(pdata,28) != 0)&&
2482 ((qt.softlim != 0xFFFFFFFF)||
2483 (IVAL(pdata,28)!=0xFFFFFFFF))) {
2484 /* more than 32 bits? */
2485 reply_doserror(req, ERRDOS, ERRunknownlevel);
2486 return;
2487 }
2488 #endif /* LARGE_SMB_OFF_T */
2489
2490 /* the hard quotas 8 bytes (uint64_t)*/
2491 qt.hardlim = (uint64_t)IVAL(pdata,32);
2492 #ifdef LARGE_SMB_OFF_T
2493 qt.hardlim |= (((uint64_t)IVAL(pdata,36)) << 32);
2494 #else /* LARGE_SMB_OFF_T */
2495 if ((IVAL(pdata,36) != 0)&&
2496 ((qt.hardlim != 0xFFFFFFFF)||
2497 (IVAL(pdata,36)!=0xFFFFFFFF))) {
2498 /* more than 32 bits? */
2499 reply_doserror(req, ERRDOS, ERRunknownlevel);
2500 return;
2501 }
2502 #endif /* LARGE_SMB_OFF_T */
2503
2504 sid_parse(pdata+40,sid_len,&sid);
2505 DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2506
2507 /* 44 unknown bytes left... */
2508
2509 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2510 reply_doserror(req, ERRSRV, ERRerror);
2511 return;
2512 }
2513
2514 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2515 pdata, data_len);
2516 }
2517 #endif /* HAVE_SYS_QUOTAS */
2518
2519 static void handle_nttrans(connection_struct *conn,
2520 struct trans_state *state,
2521 struct smb_request *req)
2522 {
2523 if (Protocol >= PROTOCOL_NT1) {
2524 req->flags2 |= 0x40; /* IS_LONG_NAME */
2525 SSVAL(req->inbuf,smb_flg2,req->flags2);
2526 }
2527
2528
2529 SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2530
2531 /* Now we must call the relevant NT_TRANS function */
2532 switch(state->call) {
2533 case NT_TRANSACT_CREATE:
2534 {
2535 START_PROFILE(NT_transact_create);
2536 call_nt_transact_create(
2537 conn, req,
2538 &state->setup, state->setup_count,
2539 &state->param, state->total_param,
2540 &state->data, state->total_data,
2541 state->max_data_return);
2542 END_PROFILE(NT_transact_create);
2543 break;
2544 }
2545
2546 case NT_TRANSACT_IOCTL:
2547 {
2548 START_PROFILE(NT_transact_ioctl);
2549 call_nt_transact_ioctl(
2550 conn, req,
2551 &state->setup, state->setup_count,
2552 &state->param, state->total_param,
2553 &state->data, state->total_data,
2554 state->max_data_return);
2555 END_PROFILE(NT_transact_ioctl);
2556 break;
2557 }
2558
2559 case NT_TRANSACT_SET_SECURITY_DESC:
2560 {
2561 START_PROFILE(NT_transact_set_security_desc);
2562 call_nt_transact_set_security_desc(
2563 conn, req,
2564 &state->setup, state->setup_count,
2565 &state->param, state->total_param,
2566 &state->data, state->total_data,
2567 state->max_data_return);
2568 END_PROFILE(NT_transact_set_security_desc);
2569 break;
2570 }
2571
2572 case NT_TRANSACT_NOTIFY_CHANGE:
2573 {
2574 START_PROFILE(NT_transact_notify_change);
2575 call_nt_transact_notify_change(
2576 conn, req,
2577 &state->setup, state->setup_count,
2578 &state->param, state->total_param,
2579 &state->data, state->total_data,
2580 state->max_data_return,
2581 state->max_param_return);
2582 END_PROFILE(NT_transact_notify_change);
2583 break;
2584 }
2585
2586 case NT_TRANSACT_RENAME:
2587 {
2588 START_PROFILE(NT_transact_rename);
2589 call_nt_transact_rename(
2590 conn, req,
2591 &state->setup, state->setup_count,
2592 &state->param, state->total_param,
2593 &state->data, state->total_data,
2594 state->max_data_return);
2595 END_PROFILE(NT_transact_rename);
2596 break;
2597 }
2598
2599 case NT_TRANSACT_QUERY_SECURITY_DESC:
2600 {
2601 START_PROFILE(NT_transact_query_security_desc);
2602 call_nt_transact_query_security_desc(
2603 conn, req,
2604 &state->setup, state->setup_count,
2605 &state->param, state->total_param,
2606 &state->data, state->total_data,
2607 state->max_data_return);
2608 END_PROFILE(NT_transact_query_security_desc);
2609 break;
2610 }
2611
2612 #ifdef HAVE_SYS_QUOTAS
2613 case NT_TRANSACT_GET_USER_QUOTA:
2614 {
2615 START_PROFILE(NT_transact_get_user_quota);
2616 call_nt_transact_get_user_quota(
2617 conn, req,
2618 &state->setup, state->setup_count,
2619 &state->param, state->total_param,
2620 &state->data, state->total_data,
2621 state->max_data_return);
2622 END_PROFILE(NT_transact_get_user_quota);
2623 break;
2624 }
2625
2626 case NT_TRANSACT_SET_USER_QUOTA:
2627 {
2628 START_PROFILE(NT_transact_set_user_quota);
2629 call_nt_transact_set_user_quota(
2630 conn, req,
2631 &state->setup, state->setup_count,
2632 &state->param, state->total_param,
2633 &state->data, state->total_data,
2634 state->max_data_return);
2635 END_PROFILE(NT_transact_set_user_quota);
2636 break;
2637 }
2638 #endif /* HAVE_SYS_QUOTAS */
2639
2640 default:
2641 /* Error in request */
2642 DEBUG(0,("handle_nttrans: Unknown request %d in "
2643 "nttrans call\n", state->call));
2644 reply_doserror(req, ERRSRV, ERRerror);
2645 return;
2646 }
2647 return;
2648 }
2649
2650 /****************************************************************************
2651 Reply to a SMBNTtrans.
2652 ****************************************************************************/
2653
2654 void reply_nttrans(struct smb_request *req)
2655 {
2656 connection_struct *conn = req->conn;
2657 uint32_t pscnt;
2658 uint32_t psoff;
2659 uint32_t dscnt;
2660 uint32_t dsoff;
2661 uint16 function_code;
2662 NTSTATUS result;
2663 struct trans_state *state;
2664
2665 START_PROFILE(SMBnttrans);
2666
2667 if (req->wct < 19) {
2668 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2669 END_PROFILE(SMBnttrans);
2670 return;
2671 }
2672
2673 pscnt = IVAL(req->vwv+9, 1);
2674 psoff = IVAL(req->vwv+11, 1);
2675 dscnt = IVAL(req->vwv+13, 1);
2676 dsoff = IVAL(req->vwv+15, 1);
2677 function_code = SVAL(req->vwv+18, 0);
2678
2679 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2680 reply_doserror(req, ERRSRV, ERRaccess);
2681 END_PROFILE(SMBnttrans);
2682 return;
2683 }
2684
2685 result = allow_new_trans(conn->pending_trans, req->mid);
2686 if (!NT_STATUS_IS_OK(result)) {
2687 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2688 reply_nterror(req, result);
2689 END_PROFILE(SMBnttrans);
2690 return;
2691 }
2692
2693 if ((state = TALLOC_P(conn, struct trans_state)) == NULL) {
2694 reply_doserror(req, ERRSRV, ERRaccess);
2695 END_PROFILE(SMBnttrans);
2696 return;
2697 }
2698
2699 state->cmd = SMBnttrans;
2700
2701 state->mid = req->mid;
2702 state->vuid = req->vuid;
2703 state->total_data = IVAL(req->vwv+3, 1);
2704 state->data = NULL;
2705 state->total_param = IVAL(req->vwv+1, 1);
2706 state->param = NULL;
2707 state->max_data_return = IVAL(req->vwv+7, 1);
2708 state->max_param_return = IVAL(req->vwv+5, 1);
2709
2710 /* setup count is in *words* */
2711 state->setup_count = 2*CVAL(req->vwv+17, 1);
2712 state->setup = NULL;
2713 state->call = function_code;
2714
2715 DEBUG(10, ("num_setup=%u, "
2716 "param_total=%u, this_param=%u, max_param=%u, "
2717 "data_total=%u, this_data=%u, max_data=%u, "
2718 "param_offset=%u, data_offset=%u\n",
2719 (unsigned)state->setup_count,
2720 (unsigned)state->total_param, (unsigned)pscnt,
2721 (unsigned)state->max_param_return,
2722 (unsigned)state->total_data, (unsigned)dscnt,
2723 (unsigned)state->max_data_return,
2724 (unsigned)psoff, (unsigned)dsoff));
2725
2726 /*
2727 * All nttrans messages we handle have smb_wct == 19 +
2728 * state->setup_count. Ensure this is so as a sanity check.
2729 */
2730
2731 if(req->wct != 19 + (state->setup_count/2)) {
2732 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2733 req->wct, 19 + (state->setup_count/2)));
2734 goto bad_param;
2735 }
2736
2737 /* Don't allow more than 128mb for each value. */
2738 if ((state->total_data > (1024*1024*128)) ||
2739 (state->total_param > (1024*1024*128))) {
2740 reply_doserror(req, ERRDOS, ERRnomem);
2741 END_PROFILE(SMBnttrans);
2742 return;
2743 }
2744
2745 if ((dscnt > state->total_data) || (pscnt > state->total_param))
2746 goto bad_param;
2747
2748 if (state->total_data) {
2749
2750 if (trans_oob(state->total_data, 0, dscnt)
2751 || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
2752 goto bad_param;
2753 }
2754
2755 /* Can't use talloc here, the core routines do realloc on the
2756 * params and data. */
2757 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2758 DEBUG(0,("reply_nttrans: data malloc fail for %u "
2759 "bytes !\n", (unsigned int)state->total_data));
2760 TALLOC_FREE(state);
2761 reply_doserror(req, ERRDOS, ERRnomem);
2762 END_PROFILE(SMBnttrans);
2763 return;
2764 }
2765
2766 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2767 }
2768
2769 if (state->total_param) {
2770
2771 if (trans_oob(state->total_param, 0, pscnt)
2772 || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
2773 goto bad_param;
2774 }
2775
2776 /* Can't use talloc here, the core routines do realloc on the
2777 * params and data. */
2778 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2779 DEBUG(0,("reply_nttrans: param malloc fail for %u "
2780 "bytes !\n", (unsigned int)state->total_param));
2781 SAFE_FREE(state->data);
2782 TALLOC_FREE(state);
2783 reply_doserror(req, ERRDOS, ERRnomem);
2784 END_PROFILE(SMBnttrans);
2785 return;
2786 }
2787
2788 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2789 }
2790
2791 state->received_data = dscnt;
2792 state->received_param = pscnt;
2793
2794 if(state->setup_count > 0) {
2795 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2796 state->setup_count));
2797
2798 /*
2799 * No overflow possible here, state->setup_count is an
2800 * unsigned int, being filled by a single byte from
2801 * CVAL(req->vwv+13, 0) above. The cast in the comparison
2802 * below is not necessary, it's here to clarify things. The
2803 * validity of req->vwv and req->wct has been checked in
2804 * init_smb_request already.
2805 */
2806 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
2807 goto bad_param;
2808 }
2809
2810 state->setup = (uint16 *)TALLOC(state, state->setup_count);
2811 if (state->setup == NULL) {
2812 DEBUG(0,("reply_nttrans : Out of memory\n"));
2813 SAFE_FREE(state->data);
2814 SAFE_FREE(state->param);
2815 TALLOC_FREE(state);
2816 reply_doserror(req, ERRDOS, ERRnomem);
2817 END_PROFILE(SMBnttrans);
2818 return;
2819 }
2820
2821 memcpy(state->setup, req->vwv+19, state->setup_count);
2822 dump_data(10, (uint8 *)state->setup, state->setup_count);
2823 }
2824
2825 if ((state->received_data == state->total_data) &&
2826 (state->received_param == state->total_param)) {
2827 handle_nttrans(conn, state, req);
2828 SAFE_FREE(state->param);
2829 SAFE_FREE(state->data);
2830 TALLOC_FREE(state);
2831 END_PROFILE(SMBnttrans);
2832 return;
2833 }
2834
2835 DLIST_ADD(conn->pending_trans, state);
2836
2837 /* We need to send an interim response then receive the rest
2838 of the parameter/data bytes */
2839 reply_outbuf(req, 0, 0);
2840 show_msg((char *)req->outbuf);
2841 END_PROFILE(SMBnttrans);
2842 return;
2843
2844 bad_param:
2845
2846 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2847 SAFE_FREE(state->data);
2848 SAFE_FREE(state->param);
2849 TALLOC_FREE(state);
2850 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2851 END_PROFILE(SMBnttrans);
2852 return;
2853 }
2854
2855 /****************************************************************************
2856 Reply to a SMBnttranss
2857 ****************************************************************************/
2858
2859 void reply_nttranss(struct smb_request *req)
2860 {
2861 connection_struct *conn = req->conn;
2862 uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
2863 struct trans_state *state;
2864
2865 START_PROFILE(SMBnttranss);
2866
2867 show_msg((char *)req->inbuf);
2868
2869 if (req->wct < 18) {
2870 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2871 END_PROFILE(SMBnttranss);
2872 return;
2873 }
2874
2875 for (state = conn->pending_trans; state != NULL;
2876 state = state->next) {
2877 if (state->mid == req->mid) {
2878 break;
2879 }
2880 }
2881
2882 if ((state == NULL) || (state->cmd != SMBnttrans)) {
2883 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2884 END_PROFILE(SMBnttranss);
2885 return;
2886 }
2887
2888 /* Revise state->total_param and state->total_data in case they have
2889 changed downwards */
2890 if (IVAL(req->vwv+1, 1) < state->total_param) {
2891 state->total_param = IVAL(req->vwv+1, 1);
2892 }
2893 if (IVAL(req->vwv+3, 1) < state->total_data) {
2894 state->total_data = IVAL(req->vwv+3, 1);
2895 }
2896
2897 pcnt = IVAL(req->vwv+5, 1);
2898 poff = IVAL(req->vwv+7, 1);
2899 pdisp = IVAL(req->vwv+9, 1);
2900
2901 dcnt = IVAL(req->vwv+11, 1);
2902 doff = IVAL(req->vwv+13, 1);
2903 ddisp = IVAL(req->vwv+15, 1);
2904
2905 state->received_param += pcnt;
2906 state->received_data += dcnt;
2907
2908 if ((state->received_data > state->total_data) ||
2909 (state->received_param > state->total_param))
2910 goto bad_param;
2911
2912 if (pcnt) {
2913 if (trans_oob(state->total_param, pdisp, pcnt)
2914 || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
2915 goto bad_param;
2916 }
2917 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
2918 }
2919
2920 if (dcnt) {
2921 if (trans_oob(state->total_data, ddisp, dcnt)
2922 || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
2923 goto bad_param;
2924 }
2925 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
2926 }
2927
2928 if ((state->received_param < state->total_param) ||
2929 (state->received_data < state->total_data)) {
2930 END_PROFILE(SMBnttranss);
2931 return;
2932 }
2933
2934 handle_nttrans(conn, state, req);
2935
2936 DLIST_REMOVE(conn->pending_trans, state);
2937 SAFE_FREE(state->data);
2938 SAFE_FREE(state->param);
2939 TALLOC_FREE(state);
2940 END_PROFILE(SMBnttranss);
2941 return;
2942
2943 bad_param:
2944
2945 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
2946 DLIST_REMOVE(conn->pending_trans, state);
2947 SAFE_FREE(state->data);
2948 SAFE_FREE(state->param);
2949 TALLOC_FREE(state);
2950 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2951 END_PROFILE(SMBnttranss);
2952 return;
2953 }
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