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Convert dbwrap_trans_delete to NTSTATUS
[Samba.git] / source / smbd / nttrans.c
blobbc93d19af3d1b5183a46508b73df824e12aa0184
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
23 extern int max_send;
24 extern enum protocol_types Protocol;
25 extern struct current_user current_user;
26
27 static const char *known_nt_pipes[] = {
28 "\\LANMAN",
29 "\\srvsvc",
30 "\\samr",
31 "\\wkssvc",
32 "\\NETLOGON",
33 "\\ntlsa",
34 "\\ntsvcs",
35 "\\lsass",
36 "\\lsarpc",
37 "\\winreg",
38 "\\initshutdown",
39 "\\spoolss",
40 "\\netdfs",
41 "\\rpcecho",
42 "\\svcctl",
43 "\\eventlog",
44 "\\unixinfo",
45 NULL
46 };
47
48 static char *nttrans_realloc(char **ptr, size_t size)
49 {
50 if (ptr==NULL) {
51 smb_panic("nttrans_realloc() called with NULL ptr");
52 }
53
54 *ptr = (char *)SMB_REALLOC(*ptr, size);
55 if(*ptr == NULL) {
56 return NULL;
57 }
58 memset(*ptr,'\0',size);
59 return *ptr;
60 }
61
62 /****************************************************************************
63 Send the required number of replies back.
64 We assume all fields other than the data fields are
65 set correctly for the type of call.
66 HACK ! Always assumes smb_setup field is zero.
67 ****************************************************************************/
68
69 void send_nt_replies(connection_struct *conn,
70 struct smb_request *req, NTSTATUS nt_error,
71 char *params, int paramsize,
72 char *pdata, int datasize)
73 {
74 int data_to_send = datasize;
75 int params_to_send = paramsize;
76 int useable_space;
77 char *pp = params;
78 char *pd = pdata;
79 int params_sent_thistime, data_sent_thistime, total_sent_thistime;
80 int alignment_offset = 3;
81 int data_alignment_offset = 0;
82
83 /*
84 * If there genuinely are no parameters or data to send just send
85 * the empty packet.
86 */
87
88 if(params_to_send == 0 && data_to_send == 0) {
89 reply_outbuf(req, 18, 0);
90 show_msg((char *)req->outbuf);
91 return;
92 }
93
94 /*
95 * When sending params and data ensure that both are nicely aligned.
96 * Only do this alignment when there is also data to send - else
97 * can cause NT redirector problems.
98 */
99
100 if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
101 data_alignment_offset = 4 - (params_to_send % 4);
102 }
103
104 /*
105 * Space is bufsize minus Netbios over TCP header minus SMB header.
106 * The alignment_offset is to align the param bytes on a four byte
107 * boundary (2 bytes for data len, one byte pad).
108 * NT needs this to work correctly.
109 */
110
111 useable_space = max_send - (smb_size
112 + 2 * 18 /* wct */
113 + alignment_offset
114 + data_alignment_offset);
115
116 /*
117 * useable_space can never be more than max_send minus the
118 * alignment offset.
119 */
120
121 useable_space = MIN(useable_space,
122 max_send - (alignment_offset+data_alignment_offset));
123
124
125 while (params_to_send || data_to_send) {
126
127 /*
128 * Calculate whether we will totally or partially fill this packet.
129 */
130
131 total_sent_thistime = params_to_send + data_to_send +
132 alignment_offset + data_alignment_offset;
133
134 /*
135 * We can never send more than useable_space.
136 */
137
138 total_sent_thistime = MIN(total_sent_thistime, useable_space);
139
140 reply_outbuf(req, 18, total_sent_thistime);
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 IS_CONN_ENCRYPTED(conn))) {
249 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
250 }
251
252 TALLOC_FREE(req->outbuf);
253
254 pp += params_sent_thistime;
255 pd += data_sent_thistime;
256
257 params_to_send -= params_sent_thistime;
258 data_to_send -= data_sent_thistime;
259
260 /*
261 * Sanity check
262 */
263
264 if(params_to_send < 0 || data_to_send < 0) {
265 DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
266 params_to_send, data_to_send));
267 return;
268 }
269 }
270 }
271
272 /****************************************************************************
273 Is it an NTFS stream name ?
274 An NTFS file name is <path>.<extention>:<stream name>:<stream type>
275 $DATA can be used as both a stream name and a stream type. A missing stream
276 name or type implies $DATA.
277 ****************************************************************************/
278
279 bool is_ntfs_stream_name(const char *fname)
280 {
281 if (lp_posix_pathnames()) {
282 return False;
283 }
284 return (strchr_m(fname, ':') != NULL) ? True : False;
285 }
286
287 /****************************************************************************
288 Reply to an NT create and X call on a pipe
289 ****************************************************************************/
290
291 static void nt_open_pipe(char *fname, connection_struct *conn,
292 struct smb_request *req, int *ppnum)
293 {
294 smb_np_struct *p = NULL;
295 int i;
296
297 DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
298
299 /* See if it is one we want to handle. */
300
301 if (lp_disable_spoolss() && strequal(fname, "\\spoolss")) {
302 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
303 ERRDOS, ERRbadpipe);
304 return;
305 }
306
307 for( i = 0; known_nt_pipes[i]; i++ ) {
308 if( strequal(fname,known_nt_pipes[i])) {
309 break;
310 }
311 }
312
313 if ( known_nt_pipes[i] == NULL ) {
314 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
315 ERRDOS, ERRbadpipe);
316 return;
317 }
318
319 /* Strip \\ off the name. */
320 fname++;
321
322 DEBUG(3,("nt_open_pipe: Known pipe %s opening.\n", fname));
323
324 p = open_rpc_pipe_p(fname, conn, req->vuid);
325 if (!p) {
326 reply_doserror(req, ERRSRV, ERRnofids);
327 return;
328 }
329
330 /* TODO: Add pipe to db */
331
332 if ( !store_pipe_opendb( p ) ) {
333 DEBUG(3,("nt_open_pipe: failed to store %s pipe open.\n", fname));
334 }
335
336 *ppnum = p->pnum;
337 return;
338 }
339
340 /****************************************************************************
341 Reply to an NT create and X call for pipes.
342 ****************************************************************************/
343
344 static void do_ntcreate_pipe_open(connection_struct *conn,
345 struct smb_request *req)
346 {
347 char *fname = NULL;
348 int pnum = -1;
349 char *p = NULL;
350 uint32 flags = IVAL(req->inbuf,smb_ntcreate_Flags);
351 TALLOC_CTX *ctx = talloc_tos();
352
353 srvstr_pull_buf_talloc(ctx, (char *)req->inbuf, req->flags2, &fname,
354 smb_buf(req->inbuf), STR_TERMINATE);
355
356 if (!fname) {
357 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
358 ERRDOS, ERRbadpipe);
359 return;
360 }
361 nt_open_pipe(fname, conn, req, &pnum);
362
363 if (req->outbuf) {
364 /* error reply */
365 return;
366 }
367
368 /*
369 * Deal with pipe return.
370 */
371
372 if (flags & EXTENDED_RESPONSE_REQUIRED) {
373 /* This is very strange. We
374 * return 50 words, but only set
375 * the wcnt to 42 ? It's definately
376 * what happens on the wire....
377 */
378 reply_outbuf(req, 50, 0);
379 SCVAL(req->outbuf,smb_wct,42);
380 } else {
381 reply_outbuf(req, 34, 0);
382 }
383
384 p = (char *)req->outbuf + smb_vwv2;
385 p++;
386 SSVAL(p,0,pnum);
387 p += 2;
388 SIVAL(p,0,FILE_WAS_OPENED);
389 p += 4;
390 p += 32;
391 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
392 p += 20;
393 /* File type. */
394 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
395 /* Device state. */
396 SSVAL(p,2, 0x5FF); /* ? */
397 p += 4;
398
399 if (flags & EXTENDED_RESPONSE_REQUIRED) {
400 p += 25;
401 SIVAL(p,0,FILE_GENERIC_ALL);
402 /*
403 * For pipes W2K3 seems to return
404 * 0x12019B next.
405 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
406 */
407 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
408 }
409
410 DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
411
412 chain_reply(req);
413 }
414
415 /****************************************************************************
416 Reply to an NT create and X call.
417 ****************************************************************************/
418
419 void reply_ntcreate_and_X(struct smb_request *req)
420 {
421 connection_struct *conn = req->conn;
422 char *fname = NULL;
423 uint32 flags;
424 uint32 access_mask;
425 uint32 file_attributes;
426 uint32 share_access;
427 uint32 create_disposition;
428 uint32 create_options;
429 uint16 root_dir_fid;
430 SMB_BIG_UINT allocation_size;
431 /* Breakout the oplock request bits so we can set the
432 reply bits separately. */
433 uint32 fattr=0;
434 SMB_OFF_T file_len = 0;
435 SMB_STRUCT_STAT sbuf;
436 int info = 0;
437 files_struct *fsp = NULL;
438 char *p = NULL;
439 struct timespec c_timespec;
440 struct timespec a_timespec;
441 struct timespec m_timespec;
442 NTSTATUS status;
443 int oplock_request;
444 uint8_t oplock_granted = NO_OPLOCK_RETURN;
445 TALLOC_CTX *ctx = talloc_tos();
446
447 START_PROFILE(SMBntcreateX);
448
449 if (req->wct < 24) {
450 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
451 return;
452 }
453
454 flags = IVAL(req->inbuf,smb_ntcreate_Flags);
455 access_mask = IVAL(req->inbuf,smb_ntcreate_DesiredAccess);
456 file_attributes = IVAL(req->inbuf,smb_ntcreate_FileAttributes);
457 share_access = IVAL(req->inbuf,smb_ntcreate_ShareAccess);
458 create_disposition = IVAL(req->inbuf,smb_ntcreate_CreateDisposition);
459 create_options = IVAL(req->inbuf,smb_ntcreate_CreateOptions);
460 root_dir_fid = (uint16)IVAL(req->inbuf,smb_ntcreate_RootDirectoryFid);
461
462 allocation_size = (SMB_BIG_UINT)IVAL(req->inbuf,
463 smb_ntcreate_AllocationSize);
464 #ifdef LARGE_SMB_OFF_T
465 allocation_size |= (((SMB_BIG_UINT)IVAL(
466 req->inbuf,
467 smb_ntcreate_AllocationSize + 4)) << 32);
468 #endif
469
470 srvstr_get_path(ctx, (char *)req->inbuf, req->flags2, &fname,
471 smb_buf(req->inbuf), 0, STR_TERMINATE, &status);
472
473 if (!NT_STATUS_IS_OK(status)) {
474 reply_nterror(req, status);
475 END_PROFILE(SMBntcreateX);
476 return;
477 }
478
479 DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
480 "file_attributes = 0x%x, share_access = 0x%x, "
481 "create_disposition = 0x%x create_options = 0x%x "
482 "root_dir_fid = 0x%x, fname = %s\n",
483 (unsigned int)flags,
484 (unsigned int)access_mask,
485 (unsigned int)file_attributes,
486 (unsigned int)share_access,
487 (unsigned int)create_disposition,
488 (unsigned int)create_options,
489 (unsigned int)root_dir_fid,
490 fname));
491
492 /*
493 * If it's an IPC, use the pipe handler.
494 */
495
496 if (IS_IPC(conn)) {
497 if (lp_nt_pipe_support()) {
498 do_ntcreate_pipe_open(conn, req);
499 END_PROFILE(SMBntcreateX);
500 return;
501 } else {
502 reply_doserror(req, ERRDOS, ERRnoaccess);
503 END_PROFILE(SMBntcreateX);
504 return;
505 }
506 }
507
508 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
509 if (oplock_request) {
510 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
511 ? BATCH_OPLOCK : 0;
512 }
513
514 status = create_file(conn, req, root_dir_fid, fname,
515 access_mask, share_access, create_disposition,
516 create_options, file_attributes, oplock_request,
517 allocation_size, NULL, NULL, &fsp, &info, &sbuf);
518
519 if (!NT_STATUS_IS_OK(status)) {
520 if (open_was_deferred(req->mid)) {
521 /* We have re-scheduled this call, no error. */
522 END_PROFILE(SMBntcreateX);
523 return;
524 }
525 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_COLLISION)) {
526 reply_botherror(req, status, ERRDOS, ERRfilexists);
527 }
528 else {
529 reply_nterror(req, status);
530 }
531 END_PROFILE(SMBntcreateX);
532 return;
533 }
534
535 /*
536 * If the caller set the extended oplock request bit
537 * and we granted one (by whatever means) - set the
538 * correct bit for extended oplock reply.
539 */
540
541 if (oplock_request &&
542 (lp_fake_oplocks(SNUM(conn))
543 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
544
545 /*
546 * Exclusive oplock granted
547 */
548
549 if (flags & REQUEST_BATCH_OPLOCK) {
550 oplock_granted = BATCH_OPLOCK_RETURN;
551 } else {
552 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
553 }
554 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
555 oplock_granted = LEVEL_II_OPLOCK_RETURN;
556 } else {
557 oplock_granted = NO_OPLOCK_RETURN;
558 }
559
560 file_len = sbuf.st_size;
561 fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
562 if (fattr == 0) {
563 fattr = FILE_ATTRIBUTE_NORMAL;
564 }
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 /* Create time. */
594 c_timespec = get_create_timespec(
595 &sbuf,lp_fake_dir_create_times(SNUM(conn)));
596 a_timespec = get_atimespec(&sbuf);
597 m_timespec = get_mtimespec(&sbuf);
598
599 if (lp_dos_filetime_resolution(SNUM(conn))) {
600 dos_filetime_timespec(&c_timespec);
601 dos_filetime_timespec(&a_timespec);
602 dos_filetime_timespec(&m_timespec);
603 }
604
605 put_long_date_timespec(p, c_timespec); /* create time. */
606 p += 8;
607 put_long_date_timespec(p, a_timespec); /* access time */
608 p += 8;
609 put_long_date_timespec(p, m_timespec); /* write time */
610 p += 8;
611 put_long_date_timespec(p, m_timespec); /* change time */
612 p += 8;
613 SIVAL(p,0,fattr); /* File Attributes. */
614 p += 4;
615 SOFF_T(p, 0, get_allocation_size(conn,fsp,&sbuf));
616 p += 8;
617 SOFF_T(p,0,file_len);
618 p += 8;
619 if (flags & EXTENDED_RESPONSE_REQUIRED) {
620 SSVAL(p,2,0x7);
621 }
622 p += 4;
623 SCVAL(p,0,fsp->is_directory ? 1 : 0);
624
625 if (flags & EXTENDED_RESPONSE_REQUIRED) {
626 uint32 perms = 0;
627 p += 25;
628 if (fsp->is_directory
629 || can_write_to_file(conn, fsp->fsp_name, &sbuf)) {
630 perms = FILE_GENERIC_ALL;
631 } else {
632 perms = FILE_GENERIC_READ|FILE_EXECUTE;
633 }
634 SIVAL(p,0,perms);
635 }
636
637 DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
638 fsp->fnum, fsp->fsp_name));
639
640 chain_reply(req);
641 END_PROFILE(SMBntcreateX);
642 return;
643 }
644
645 /****************************************************************************
646 Reply to a NT_TRANSACT_CREATE call to open a pipe.
647 ****************************************************************************/
648
649 static void do_nt_transact_create_pipe(connection_struct *conn,
650 struct smb_request *req,
651 uint16 **ppsetup, uint32 setup_count,
652 char **ppparams, uint32 parameter_count,
653 char **ppdata, uint32 data_count)
654 {
655 char *fname = NULL;
656 char *params = *ppparams;
657 int pnum = -1;
658 char *p = NULL;
659 NTSTATUS status;
660 size_t param_len;
661 uint32 flags;
662 TALLOC_CTX *ctx = talloc_tos();
663
664 /*
665 * Ensure minimum number of parameters sent.
666 */
667
668 if(parameter_count < 54) {
669 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
670 reply_doserror(req, ERRDOS, ERRnoaccess);
671 return;
672 }
673
674 flags = IVAL(params,0);
675
676 srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
677 parameter_count-53, STR_TERMINATE,
678 &status);
679 if (!NT_STATUS_IS_OK(status)) {
680 reply_nterror(req, status);
681 return;
682 }
683
684 nt_open_pipe(fname, conn, req, &pnum);
685
686 if (req->outbuf) {
687 /* Error return */
688 return;
689 }
690
691 /* Realloc the size of parameters and data we will return */
692 if (flags & EXTENDED_RESPONSE_REQUIRED) {
693 /* Extended response is 32 more byyes. */
694 param_len = 101;
695 } else {
696 param_len = 69;
697 }
698 params = nttrans_realloc(ppparams, param_len);
699 if(params == NULL) {
700 reply_doserror(req, ERRDOS, ERRnomem);
701 return;
702 }
703
704 p = params;
705 SCVAL(p,0,NO_OPLOCK_RETURN);
706
707 p += 2;
708 SSVAL(p,0,pnum);
709 p += 2;
710 SIVAL(p,0,FILE_WAS_OPENED);
711 p += 8;
712
713 p += 32;
714 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
715 p += 20;
716 /* File type. */
717 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
718 /* Device state. */
719 SSVAL(p,2, 0x5FF); /* ? */
720 p += 4;
721
722 if (flags & EXTENDED_RESPONSE_REQUIRED) {
723 p += 25;
724 SIVAL(p,0,FILE_GENERIC_ALL);
725 /*
726 * For pipes W2K3 seems to return
727 * 0x12019B next.
728 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
729 */
730 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
731 }
732
733 DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
734
735 /* Send the required number of replies */
736 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
737
738 return;
739 }
740
741 /****************************************************************************
742 Internal fn to set security descriptors.
743 ****************************************************************************/
744
745 static NTSTATUS set_sd(files_struct *fsp, uint8 *data, uint32 sd_len,
746 uint32 security_info_sent)
747 {
748 SEC_DESC *psd = NULL;
749 NTSTATUS status;
750
751 if (sd_len == 0 || !lp_nt_acl_support(SNUM(fsp->conn))) {
752 return NT_STATUS_OK;
753 }
754
755 status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
756
757 if (!NT_STATUS_IS_OK(status)) {
758 return status;
759 }
760
761 if (psd->owner_sid==0) {
762 security_info_sent &= ~OWNER_SECURITY_INFORMATION;
763 }
764 if (psd->group_sid==0) {
765 security_info_sent &= ~GROUP_SECURITY_INFORMATION;
766 }
767 if (psd->sacl==0) {
768 security_info_sent &= ~SACL_SECURITY_INFORMATION;
769 }
770 if (psd->dacl==0) {
771 security_info_sent &= ~DACL_SECURITY_INFORMATION;
772 }
773
774 if (fsp->fh->fd != -1) {
775 status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
776 }
777 else {
778 status = SMB_VFS_SET_NT_ACL(fsp, fsp->fsp_name,
779 security_info_sent, psd);
780 }
781
782 TALLOC_FREE(psd);
783
784 return status;
785 }
786
787 /****************************************************************************
788 Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
789 ****************************************************************************/
790
791 static struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
792 {
793 struct ea_list *ea_list_head = NULL;
794 size_t offset = 0;
795
796 if (data_size < 4) {
797 return NULL;
798 }
799
800 while (offset + 4 <= data_size) {
801 size_t next_offset = IVAL(pdata,offset);
802 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
803
804 if (!eal) {
805 return NULL;
806 }
807
808 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
809 if (next_offset == 0) {
810 break;
811 }
812 offset += next_offset;
813 }
814
815 return ea_list_head;
816 }
817
818 /****************************************************************************
819 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
820 ****************************************************************************/
821
822 static void call_nt_transact_create(connection_struct *conn,
823 struct smb_request *req,
824 uint16 **ppsetup, uint32 setup_count,
825 char **ppparams, uint32 parameter_count,
826 char **ppdata, uint32 data_count,
827 uint32 max_data_count)
828 {
829 char *fname = NULL;
830 char *params = *ppparams;
831 char *data = *ppdata;
832 /* Breakout the oplock request bits so we can set the reply bits separately. */
833 uint32 fattr=0;
834 SMB_OFF_T file_len = 0;
835 SMB_STRUCT_STAT sbuf;
836 int info = 0;
837 files_struct *fsp = NULL;
838 char *p = NULL;
839 uint32 flags;
840 uint32 access_mask;
841 uint32 file_attributes;
842 uint32 share_access;
843 uint32 create_disposition;
844 uint32 create_options;
845 uint32 sd_len;
846 struct security_descriptor *sd = NULL;
847 uint32 ea_len;
848 uint16 root_dir_fid;
849 struct timespec c_timespec;
850 struct timespec a_timespec;
851 struct timespec m_timespec;
852 struct ea_list *ea_list = NULL;
853 NTSTATUS status;
854 size_t param_len;
855 SMB_BIG_UINT allocation_size;
856 int oplock_request;
857 uint8_t oplock_granted;
858 TALLOC_CTX *ctx = talloc_tos();
859
860 DEBUG(5,("call_nt_transact_create\n"));
861
862 /*
863 * If it's an IPC, use the pipe handler.
864 */
865
866 if (IS_IPC(conn)) {
867 if (lp_nt_pipe_support()) {
868 do_nt_transact_create_pipe(
869 conn, req,
870 ppsetup, setup_count,
871 ppparams, parameter_count,
872 ppdata, data_count);
873 return;
874 } else {
875 reply_doserror(req, ERRDOS, ERRnoaccess);
876 return;
877 }
878 }
879
880 /*
881 * Ensure minimum number of parameters sent.
882 */
883
884 if(parameter_count < 54) {
885 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
886 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
887 return;
888 }
889
890 flags = IVAL(params,0);
891 access_mask = IVAL(params,8);
892 file_attributes = IVAL(params,20);
893 share_access = IVAL(params,24);
894 create_disposition = IVAL(params,28);
895 create_options = IVAL(params,32);
896 sd_len = IVAL(params,36);
897 ea_len = IVAL(params,40);
898 root_dir_fid = (uint16)IVAL(params,4);
899 allocation_size = (SMB_BIG_UINT)IVAL(params,12);
900 #ifdef LARGE_SMB_OFF_T
901 allocation_size |= (((SMB_BIG_UINT)IVAL(params,16)) << 32);
902 #endif
903
904 /* Ensure the data_len is correct for the sd and ea values given. */
905 if ((ea_len + sd_len > data_count)
906 || (ea_len > data_count) || (sd_len > data_count)
907 || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
908 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
909 "%u, data_count = %u\n", (unsigned int)ea_len,
910 (unsigned int)sd_len, (unsigned int)data_count));
911 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
912 return;
913 }
914
915 if (sd_len) {
916 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
917 sd_len));
918
919 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
920 &sd);
921 if (!NT_STATUS_IS_OK(status)) {
922 DEBUG(10, ("call_nt_transact_create: "
923 "unmarshall_sec_desc failed: %s\n",
924 nt_errstr(status)));
925 reply_nterror(req, status);
926 return;
927 }
928 }
929
930 if (ea_len) {
931 if (!lp_ea_support(SNUM(conn))) {
932 DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
933 "EA's not supported.\n",
934 (unsigned int)ea_len));
935 reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
936 return;
937 }
938
939 if (ea_len < 10) {
940 DEBUG(10,("call_nt_transact_create - ea_len = %u - "
941 "too small (should be more than 10)\n",
942 (unsigned int)ea_len ));
943 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
944 return;
945 }
946
947 /* We have already checked that ea_len <= data_count here. */
948 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
949 ea_len);
950 if (ea_list == NULL) {
951 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
952 return;
953 }
954 }
955
956 srvstr_get_path(ctx, params, req->flags2, &fname,
957 params+53, parameter_count-53,
958 STR_TERMINATE, &status);
959 if (!NT_STATUS_IS_OK(status)) {
960 reply_nterror(req, status);
961 return;
962 }
963
964 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
965 if (oplock_request) {
966 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
967 ? BATCH_OPLOCK : 0;
968 }
969
970 status = create_file(conn, req, root_dir_fid, fname,
971 access_mask, share_access, create_disposition,
972 create_options, file_attributes, oplock_request,
973 allocation_size, sd, ea_list, &fsp, &info, &sbuf);
974
975 if(!NT_STATUS_IS_OK(status)) {
976 if (open_was_deferred(req->mid)) {
977 /* We have re-scheduled this call, no error. */
978 return;
979 }
980 reply_openerror(req, status);
981 return;
982 }
983
984 /*
985 * If the caller set the extended oplock request bit
986 * and we granted one (by whatever means) - set the
987 * correct bit for extended oplock reply.
988 */
989
990 if (oplock_request &&
991 (lp_fake_oplocks(SNUM(conn))
992 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
993
994 /*
995 * Exclusive oplock granted
996 */
997
998 if (flags & REQUEST_BATCH_OPLOCK) {
999 oplock_granted = BATCH_OPLOCK_RETURN;
1000 } else {
1001 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1002 }
1003 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1004 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1005 } else {
1006 oplock_granted = NO_OPLOCK_RETURN;
1007 }
1008
1009 file_len = sbuf.st_size;
1010 fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
1011 if (fattr == 0) {
1012 fattr = FILE_ATTRIBUTE_NORMAL;
1013 }
1014
1015 /* Realloc the size of parameters and data we will return */
1016 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1017 /* Extended response is 32 more byyes. */
1018 param_len = 101;
1019 } else {
1020 param_len = 69;
1021 }
1022 params = nttrans_realloc(ppparams, param_len);
1023 if(params == NULL) {
1024 reply_doserror(req, ERRDOS, ERRnomem);
1025 return;
1026 }
1027
1028 p = params;
1029 SCVAL(p, 0, oplock_granted);
1030
1031 p += 2;
1032 SSVAL(p,0,fsp->fnum);
1033 p += 2;
1034 if ((create_disposition == FILE_SUPERSEDE)
1035 && (info == FILE_WAS_OVERWRITTEN)) {
1036 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1037 } else {
1038 SIVAL(p,0,info);
1039 }
1040 p += 8;
1041
1042 /* Create time. */
1043 c_timespec = get_create_timespec(
1044 &sbuf,lp_fake_dir_create_times(SNUM(conn)));
1045 a_timespec = get_atimespec(&sbuf);
1046 m_timespec = get_mtimespec(&sbuf);
1047
1048 if (lp_dos_filetime_resolution(SNUM(conn))) {
1049 dos_filetime_timespec(&c_timespec);
1050 dos_filetime_timespec(&a_timespec);
1051 dos_filetime_timespec(&m_timespec);
1052 }
1053
1054 put_long_date_timespec(p, c_timespec); /* create time. */
1055 p += 8;
1056 put_long_date_timespec(p, a_timespec); /* access time */
1057 p += 8;
1058 put_long_date_timespec(p, m_timespec); /* write time */
1059 p += 8;
1060 put_long_date_timespec(p, m_timespec); /* change time */
1061 p += 8;
1062 SIVAL(p,0,fattr); /* File Attributes. */
1063 p += 4;
1064 SOFF_T(p, 0, get_allocation_size(conn,fsp,&sbuf));
1065 p += 8;
1066 SOFF_T(p,0,file_len);
1067 p += 8;
1068 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1069 SSVAL(p,2,0x7);
1070 }
1071 p += 4;
1072 SCVAL(p,0,fsp->is_directory ? 1 : 0);
1073
1074 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1075 uint32 perms = 0;
1076 p += 25;
1077 if (fsp->is_directory
1078 || can_write_to_file(conn, fsp->fsp_name, &sbuf)) {
1079 perms = FILE_GENERIC_ALL;
1080 } else {
1081 perms = FILE_GENERIC_READ|FILE_EXECUTE;
1082 }
1083 SIVAL(p,0,perms);
1084 }
1085
1086 DEBUG(5,("call_nt_transact_create: open name = %s\n", fsp->fsp_name));
1087
1088 /* Send the required number of replies */
1089 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1090
1091 return;
1092 }
1093
1094 /****************************************************************************
1095 Reply to a NT CANCEL request.
1096 conn POINTER CAN BE NULL HERE !
1097 ****************************************************************************/
1098
1099 void reply_ntcancel(struct smb_request *req)
1100 {
1101 /*
1102 * Go through and cancel any pending change notifies.
1103 */
1104
1105 START_PROFILE(SMBntcancel);
1106 remove_pending_change_notify_requests_by_mid(req->mid);
1107 remove_pending_lock_requests_by_mid(req->mid);
1108 srv_cancel_sign_response(req->mid);
1109
1110 DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", req->mid));
1111
1112 END_PROFILE(SMBntcancel);
1113 return;
1114 }
1115
1116 /****************************************************************************
1117 Copy a file.
1118 ****************************************************************************/
1119
1120 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1121 connection_struct *conn,
1122 struct smb_request *req,
1123 const char *oldname_in,
1124 const char *newname_in,
1125 uint32 attrs)
1126 {
1127 SMB_STRUCT_STAT sbuf1, sbuf2;
1128 char *oldname = NULL;
1129 char *newname = NULL;
1130 char *last_component_oldname = NULL;
1131 char *last_component_newname = NULL;
1132 files_struct *fsp1,*fsp2;
1133 uint32 fattr;
1134 int info;
1135 SMB_OFF_T ret=-1;
1136 NTSTATUS status = NT_STATUS_OK;
1137
1138 ZERO_STRUCT(sbuf1);
1139 ZERO_STRUCT(sbuf2);
1140
1141 if (!CAN_WRITE(conn)) {
1142 return NT_STATUS_MEDIA_WRITE_PROTECTED;
1143 }
1144
1145 status = unix_convert(ctx, conn, oldname_in, False, &oldname,
1146 &last_component_oldname, &sbuf1);
1147 if (!NT_STATUS_IS_OK(status)) {
1148 return status;
1149 }
1150
1151 status = check_name(conn, oldname);
1152 if (!NT_STATUS_IS_OK(status)) {
1153 return status;
1154 }
1155
1156 /* Source must already exist. */
1157 if (!VALID_STAT(sbuf1)) {
1158 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
1159 }
1160 /* Ensure attributes match. */
1161 fattr = dos_mode(conn,oldname,&sbuf1);
1162 if ((fattr & ~attrs) & (aHIDDEN | aSYSTEM)) {
1163 return NT_STATUS_NO_SUCH_FILE;
1164 }
1165
1166 status = unix_convert(ctx, conn, newname_in, False, &newname,
1167 &last_component_newname, &sbuf2);
1168 if (!NT_STATUS_IS_OK(status)) {
1169 return status;
1170 }
1171
1172 status = check_name(conn, newname);
1173 if (!NT_STATUS_IS_OK(status)) {
1174 return status;
1175 }
1176
1177 /* Disallow if newname already exists. */
1178 if (VALID_STAT(sbuf2)) {
1179 return NT_STATUS_OBJECT_NAME_COLLISION;
1180 }
1181
1182 /* No links from a directory. */
1183 if (S_ISDIR(sbuf1.st_mode)) {
1184 return NT_STATUS_FILE_IS_A_DIRECTORY;
1185 }
1186
1187 /* Ensure this is within the share. */
1188 status = check_reduced_name(conn, oldname);
1189 if (!NT_STATUS_IS_OK(status)) {
1190 return status;
1191 }
1192
1193 DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1194 oldname, newname));
1195
1196 status = open_file_ntcreate(conn, req, oldname, &sbuf1,
1197 FILE_READ_DATA, /* Read-only. */
1198 FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
1199 FILE_OPEN,
1200 0, /* No create options. */
1201 FILE_ATTRIBUTE_NORMAL,
1202 NO_OPLOCK,
1203 &info, &fsp1);
1204
1205 if (!NT_STATUS_IS_OK(status)) {
1206 return status;
1207 }
1208
1209 status = open_file_ntcreate(conn, req, newname, &sbuf2,
1210 FILE_WRITE_DATA, /* Read-only. */
1211 FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
1212 FILE_CREATE,
1213 0, /* No create options. */
1214 fattr,
1215 NO_OPLOCK,
1216 &info, &fsp2);
1217
1218 if (!NT_STATUS_IS_OK(status)) {
1219 close_file(fsp1,ERROR_CLOSE);
1220 return status;
1221 }
1222
1223 if (sbuf1.st_size) {
1224 ret = vfs_transfer_file(fsp1, fsp2, sbuf1.st_size);
1225 }
1226
1227 /*
1228 * As we are opening fsp1 read-only we only expect
1229 * an error on close on fsp2 if we are out of space.
1230 * Thus we don't look at the error return from the
1231 * close of fsp1.
1232 */
1233 close_file(fsp1,NORMAL_CLOSE);
1234
1235 /* Ensure the modtime is set correctly on the destination file. */
1236 fsp_set_pending_modtime(fsp2, get_mtimespec(&sbuf1));
1237
1238 status = close_file(fsp2,NORMAL_CLOSE);
1239
1240 /* Grrr. We have to do this as open_file_ntcreate adds aARCH when it
1241 creates the file. This isn't the correct thing to do in the copy
1242 case. JRA */
1243 file_set_dosmode(conn, newname, fattr, &sbuf2,
1244 parent_dirname(newname),false);
1245
1246 if (ret < (SMB_OFF_T)sbuf1.st_size) {
1247 return NT_STATUS_DISK_FULL;
1248 }
1249
1250 if (!NT_STATUS_IS_OK(status)) {
1251 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1252 nt_errstr(status), oldname, newname));
1253 }
1254 return status;
1255 }
1256
1257 /****************************************************************************
1258 Reply to a NT rename request.
1259 ****************************************************************************/
1260
1261 void reply_ntrename(struct smb_request *req)
1262 {
1263 connection_struct *conn = req->conn;
1264 char *oldname = NULL;
1265 char *newname = NULL;
1266 char *p;
1267 NTSTATUS status;
1268 bool src_has_wcard = False;
1269 bool dest_has_wcard = False;
1270 uint32 attrs;
1271 uint16 rename_type;
1272 TALLOC_CTX *ctx = talloc_tos();
1273
1274 START_PROFILE(SMBntrename);
1275
1276 if (req->wct < 4) {
1277 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1278 END_PROFILE(SMBntrename);
1279 return;
1280 }
1281
1282 attrs = SVAL(req->inbuf,smb_vwv0);
1283 rename_type = SVAL(req->inbuf,smb_vwv1);
1284
1285 p = smb_buf(req->inbuf) + 1;
1286 p += srvstr_get_path_wcard(ctx, (char *)req->inbuf, req->flags2, &oldname, p,
1287 0, STR_TERMINATE, &status,
1288 &src_has_wcard);
1289 if (!NT_STATUS_IS_OK(status)) {
1290 reply_nterror(req, status);
1291 END_PROFILE(SMBntrename);
1292 return;
1293 }
1294
1295 if( is_ntfs_stream_name(oldname)) {
1296 /* Can't rename a stream. */
1297 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1298 END_PROFILE(SMBntrename);
1299 return;
1300 }
1301
1302 if (ms_has_wild(oldname)) {
1303 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1304 END_PROFILE(SMBntrename);
1305 return;
1306 }
1307
1308 p++;
1309 p += srvstr_get_path_wcard(ctx, (char *)req->inbuf, req->flags2, &newname, p,
1310 0, STR_TERMINATE, &status,
1311 &dest_has_wcard);
1312 if (!NT_STATUS_IS_OK(status)) {
1313 reply_nterror(req, status);
1314 END_PROFILE(SMBntrename);
1315 return;
1316 }
1317
1318 status = resolve_dfspath(ctx, conn,
1319 req->flags2 & FLAGS2_DFS_PATHNAMES,
1320 oldname,
1321 &oldname);
1322 if (!NT_STATUS_IS_OK(status)) {
1323 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1324 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1325 ERRSRV, ERRbadpath);
1326 END_PROFILE(SMBntrename);
1327 return;
1328 }
1329 reply_nterror(req, status);
1330 END_PROFILE(SMBntrename);
1331 return;
1332 }
1333
1334 status = resolve_dfspath(ctx, conn,
1335 req->flags2 & FLAGS2_DFS_PATHNAMES,
1336 newname,
1337 &newname);
1338 if (!NT_STATUS_IS_OK(status)) {
1339 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1340 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1341 ERRSRV, ERRbadpath);
1342 END_PROFILE(SMBntrename);
1343 return;
1344 }
1345 reply_nterror(req, status);
1346 END_PROFILE(SMBntrename);
1347 return;
1348 }
1349
1350 DEBUG(3,("reply_ntrename : %s -> %s\n",oldname,newname));
1351
1352 switch(rename_type) {
1353 case RENAME_FLAG_RENAME:
1354 status = rename_internals(ctx, conn, req, oldname,
1355 newname, attrs, False, src_has_wcard,
1356 dest_has_wcard, DELETE_ACCESS);
1357 break;
1358 case RENAME_FLAG_HARD_LINK:
1359 if (src_has_wcard || dest_has_wcard) {
1360 /* No wildcards. */
1361 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1362 } else {
1363 status = hardlink_internals(ctx,
1364 conn,
1365 oldname,
1366 newname);
1367 }
1368 break;
1369 case RENAME_FLAG_COPY:
1370 if (src_has_wcard || dest_has_wcard) {
1371 /* No wildcards. */
1372 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1373 } else {
1374 status = copy_internals(ctx, conn, req, oldname,
1375 newname, attrs);
1376 }
1377 break;
1378 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1379 status = NT_STATUS_INVALID_PARAMETER;
1380 break;
1381 default:
1382 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1383 break;
1384 }
1385
1386 if (!NT_STATUS_IS_OK(status)) {
1387 if (open_was_deferred(req->mid)) {
1388 /* We have re-scheduled this call. */
1389 END_PROFILE(SMBntrename);
1390 return;
1391 }
1392
1393 reply_nterror(req, status);
1394 END_PROFILE(SMBntrename);
1395 return;
1396 }
1397
1398 reply_outbuf(req, 0, 0);
1399
1400 END_PROFILE(SMBntrename);
1401 return;
1402 }
1403
1404 /****************************************************************************
1405 Reply to a notify change - queue the request and
1406 don't allow a directory to be opened.
1407 ****************************************************************************/
1408
1409 static void call_nt_transact_notify_change(connection_struct *conn,
1410 struct smb_request *req,
1411 uint16 **ppsetup,
1412 uint32 setup_count,
1413 char **ppparams,
1414 uint32 parameter_count,
1415 char **ppdata, uint32 data_count,
1416 uint32 max_data_count,
1417 uint32 max_param_count)
1418 {
1419 uint16 *setup = *ppsetup;
1420 files_struct *fsp;
1421 uint32 filter;
1422 NTSTATUS status;
1423 bool recursive;
1424
1425 if(setup_count < 6) {
1426 reply_doserror(req, ERRDOS, ERRbadfunc);
1427 return;
1428 }
1429
1430 fsp = file_fsp(SVAL(setup,4));
1431 filter = IVAL(setup, 0);
1432 recursive = (SVAL(setup, 6) != 0) ? True : False;
1433
1434 DEBUG(3,("call_nt_transact_notify_change\n"));
1435
1436 if(!fsp) {
1437 reply_doserror(req, ERRDOS, ERRbadfid);
1438 return;
1439 }
1440
1441 {
1442 char *filter_string;
1443
1444 if (!(filter_string = notify_filter_string(NULL, filter))) {
1445 reply_nterror(req,NT_STATUS_NO_MEMORY);
1446 return;
1447 }
1448
1449 DEBUG(3,("call_nt_transact_notify_change: notify change "
1450 "called on %s, filter = %s, recursive = %d\n",
1451 fsp->fsp_name, filter_string, recursive));
1452
1453 TALLOC_FREE(filter_string);
1454 }
1455
1456 if((!fsp->is_directory) || (conn != fsp->conn)) {
1457 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1458 return;
1459 }
1460
1461 if (fsp->notify == NULL) {
1462
1463 status = change_notify_create(fsp, filter, recursive);
1464
1465 if (!NT_STATUS_IS_OK(status)) {
1466 DEBUG(10, ("change_notify_create returned %s\n",
1467 nt_errstr(status)));
1468 reply_nterror(req, status);
1469 return;
1470 }
1471 }
1472
1473 if (fsp->notify->num_changes != 0) {
1474
1475 /*
1476 * We've got changes pending, respond immediately
1477 */
1478
1479 /*
1480 * TODO: write a torture test to check the filtering behaviour
1481 * here.
1482 */
1483
1484 change_notify_reply(fsp->conn, req->inbuf, max_param_count, fsp->notify);
1485
1486 /*
1487 * change_notify_reply() above has independently sent its
1488 * results
1489 */
1490 return;
1491 }
1492
1493 /*
1494 * No changes pending, queue the request
1495 */
1496
1497 status = change_notify_add_request(req,
1498 max_param_count,
1499 filter,
1500 recursive, fsp);
1501 if (!NT_STATUS_IS_OK(status)) {
1502 reply_nterror(req, status);
1503 }
1504 return;
1505 }
1506
1507 /****************************************************************************
1508 Reply to an NT transact rename command.
1509 ****************************************************************************/
1510
1511 static void call_nt_transact_rename(connection_struct *conn,
1512 struct smb_request *req,
1513 uint16 **ppsetup, uint32 setup_count,
1514 char **ppparams, uint32 parameter_count,
1515 char **ppdata, uint32 data_count,
1516 uint32 max_data_count)
1517 {
1518 char *params = *ppparams;
1519 char *new_name = NULL;
1520 files_struct *fsp = NULL;
1521 bool replace_if_exists = False;
1522 bool dest_has_wcard = False;
1523 NTSTATUS status;
1524 TALLOC_CTX *ctx = talloc_tos();
1525
1526 if(parameter_count < 5) {
1527 reply_doserror(req, ERRDOS, ERRbadfunc);
1528 return;
1529 }
1530
1531 fsp = file_fsp(SVAL(params, 0));
1532 replace_if_exists = (SVAL(params,2) & RENAME_REPLACE_IF_EXISTS) ? True : False;
1533 if (!check_fsp(conn, req, fsp, &current_user)) {
1534 return;
1535 }
1536 srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1537 parameter_count - 4,
1538 STR_TERMINATE, &status, &dest_has_wcard);
1539 if (!NT_STATUS_IS_OK(status)) {
1540 reply_nterror(req, status);
1541 return;
1542 }
1543
1544 status = rename_internals(ctx,
1545 conn,
1546 req,
1547 fsp->fsp_name,
1548 new_name,
1549 0,
1550 replace_if_exists,
1551 False,
1552 dest_has_wcard,
1553 FILE_WRITE_ATTRIBUTES);
1554
1555 if (!NT_STATUS_IS_OK(status)) {
1556 if (open_was_deferred(req->mid)) {
1557 /* We have re-scheduled this call. */
1558 return;
1559 }
1560 reply_nterror(req, status);
1561 return;
1562 }
1563
1564 /*
1565 * Rename was successful.
1566 */
1567 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1568
1569 DEBUG(3,("nt transact rename from = %s, to = %s succeeded.\n",
1570 fsp->fsp_name, new_name));
1571
1572 return;
1573 }
1574
1575 /******************************************************************************
1576 Fake up a completely empty SD.
1577 *******************************************************************************/
1578
1579 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
1580 {
1581 size_t sd_size;
1582
1583 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1584 if(!*ppsd) {
1585 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1586 return NT_STATUS_NO_MEMORY;
1587 }
1588
1589 return NT_STATUS_OK;
1590 }
1591
1592 /****************************************************************************
1593 Reply to query a security descriptor.
1594 ****************************************************************************/
1595
1596 static void call_nt_transact_query_security_desc(connection_struct *conn,
1597 struct smb_request *req,
1598 uint16 **ppsetup,
1599 uint32 setup_count,
1600 char **ppparams,
1601 uint32 parameter_count,
1602 char **ppdata,
1603 uint32 data_count,
1604 uint32 max_data_count)
1605 {
1606 char *params = *ppparams;
1607 char *data = *ppdata;
1608 SEC_DESC *psd = NULL;
1609 size_t sd_size;
1610 uint32 security_info_wanted;
1611 files_struct *fsp = NULL;
1612 NTSTATUS status;
1613 DATA_BLOB blob;
1614
1615 if(parameter_count < 8) {
1616 reply_doserror(req, ERRDOS, ERRbadfunc);
1617 return;
1618 }
1619
1620 fsp = file_fsp(SVAL(params,0));
1621 if(!fsp) {
1622 reply_doserror(req, ERRDOS, ERRbadfid);
1623 return;
1624 }
1625
1626 security_info_wanted = IVAL(params,4);
1627
1628 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, info_wanted = 0x%x\n", fsp->fsp_name,
1629 (unsigned int)security_info_wanted ));
1630
1631 params = nttrans_realloc(ppparams, 4);
1632 if(params == NULL) {
1633 reply_doserror(req, ERRDOS, ERRnomem);
1634 return;
1635 }
1636
1637 /*
1638 * Get the permissions to return.
1639 */
1640
1641 if (!lp_nt_acl_support(SNUM(conn))) {
1642 status = get_null_nt_acl(talloc_tos(), &psd);
1643 } else {
1644 if (fsp->fh->fd != -1) {
1645 status = SMB_VFS_FGET_NT_ACL(
1646 fsp, security_info_wanted, &psd);
1647 }
1648 else {
1649 status = SMB_VFS_GET_NT_ACL(
1650 conn, fsp->fsp_name, security_info_wanted, &psd);
1651 }
1652 }
1653
1654 if (!NT_STATUS_IS_OK(status)) {
1655 reply_nterror(req, status);
1656 return;
1657 }
1658
1659 sd_size = ndr_size_security_descriptor(psd, 0);
1660
1661 DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %lu.\n",(unsigned long)sd_size));
1662
1663 SIVAL(params,0,(uint32)sd_size);
1664
1665 if (max_data_count < sd_size) {
1666 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1667 params, 4, *ppdata, 0);
1668 return;
1669 }
1670
1671 /*
1672 * Allocate the data we will point this at.
1673 */
1674
1675 data = nttrans_realloc(ppdata, sd_size);
1676 if(data == NULL) {
1677 reply_doserror(req, ERRDOS, ERRnomem);
1678 return;
1679 }
1680
1681 status = marshall_sec_desc(talloc_tos(), psd,
1682 &blob.data, &blob.length);
1683
1684 if (!NT_STATUS_IS_OK(status)) {
1685 reply_nterror(req, status);
1686 return;
1687 }
1688
1689 SMB_ASSERT(sd_size == blob.length);
1690 memcpy(data, blob.data, sd_size);
1691
1692 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
1693
1694 return;
1695 }
1696
1697 /****************************************************************************
1698 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
1699 ****************************************************************************/
1700
1701 static void call_nt_transact_set_security_desc(connection_struct *conn,
1702 struct smb_request *req,
1703 uint16 **ppsetup,
1704 uint32 setup_count,
1705 char **ppparams,
1706 uint32 parameter_count,
1707 char **ppdata,
1708 uint32 data_count,
1709 uint32 max_data_count)
1710 {
1711 char *params= *ppparams;
1712 char *data = *ppdata;
1713 files_struct *fsp = NULL;
1714 uint32 security_info_sent = 0;
1715 NTSTATUS status;
1716
1717 if(parameter_count < 8) {
1718 reply_doserror(req, ERRDOS, ERRbadfunc);
1719 return;
1720 }
1721
1722 if((fsp = file_fsp(SVAL(params,0))) == NULL) {
1723 reply_doserror(req, ERRDOS, ERRbadfid);
1724 return;
1725 }
1726
1727 if(!lp_nt_acl_support(SNUM(conn))) {
1728 goto done;
1729 }
1730
1731 security_info_sent = IVAL(params,4);
1732
1733 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n", fsp->fsp_name,
1734 (unsigned int)security_info_sent ));
1735
1736 if (data_count == 0) {
1737 reply_doserror(req, ERRDOS, ERRnoaccess);
1738 return;
1739 }
1740
1741 status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
1742
1743 if (!NT_STATUS_IS_OK(status)) {
1744 reply_nterror(req, status);
1745 return;
1746 }
1747
1748 done:
1749 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1750 return;
1751 }
1752
1753 /****************************************************************************
1754 Reply to NT IOCTL
1755 ****************************************************************************/
1756
1757 static void call_nt_transact_ioctl(connection_struct *conn,
1758 struct smb_request *req,
1759 uint16 **ppsetup, uint32 setup_count,
1760 char **ppparams, uint32 parameter_count,
1761 char **ppdata, uint32 data_count,
1762 uint32 max_data_count)
1763 {
1764 uint32 function;
1765 uint16 fidnum;
1766 files_struct *fsp;
1767 uint8 isFSctl;
1768 uint8 compfilter;
1769 static bool logged_message;
1770 char *pdata = *ppdata;
1771
1772 if (setup_count != 8) {
1773 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
1774 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1775 return;
1776 }
1777
1778 function = IVAL(*ppsetup, 0);
1779 fidnum = SVAL(*ppsetup, 4);
1780 isFSctl = CVAL(*ppsetup, 6);
1781 compfilter = CVAL(*ppsetup, 7);
1782
1783 DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
1784 function, fidnum, isFSctl, compfilter));
1785
1786 fsp=file_fsp(fidnum);
1787 /* this check is done in each implemented function case for now
1788 because I don't want to break anything... --metze
1789 FSP_BELONGS_CONN(fsp,conn);*/
1790
1791 switch (function) {
1792 case FSCTL_SET_SPARSE:
1793 /* pretend this succeeded - tho strictly we should
1794 mark the file sparse (if the local fs supports it)
1795 so we can know if we need to pre-allocate or not */
1796
1797 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum));
1798 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1799 return;
1800
1801 case FSCTL_CREATE_OR_GET_OBJECT_ID:
1802 {
1803 unsigned char objid[16];
1804
1805 /* This should return the object-id on this file.
1806 * I think I'll make this be the inode+dev. JRA.
1807 */
1808
1809 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
1810
1811 if (!fsp_belongs_conn(conn, req, fsp, &current_user)) {
1812 return;
1813 }
1814
1815 data_count = 64;
1816 pdata = nttrans_realloc(ppdata, data_count);
1817 if (pdata == NULL) {
1818 reply_nterror(req, NT_STATUS_NO_MEMORY);
1819 return;
1820 }
1821 push_file_id_16(pdata, &fsp->file_id);
1822 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
1823 push_file_id_16(pdata+32, &fsp->file_id);
1824 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
1825 pdata, data_count);
1826 return;
1827 }
1828
1829 case FSCTL_GET_REPARSE_POINT:
1830 /* pretend this fail - my winXP does it like this
1831 * --metze
1832 */
1833
1834 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1835 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1836 return;
1837
1838 case FSCTL_SET_REPARSE_POINT:
1839 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
1840 * --metze
1841 */
1842
1843 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1844 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1845 return;
1846
1847 case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
1848 {
1849 /*
1850 * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
1851 * and return their volume names. If max_data_count is 16, then it is just
1852 * asking for the number of volumes and length of the combined names.
1853 *
1854 * pdata is the data allocated by our caller, but that uses
1855 * total_data_count (which is 0 in our case) rather than max_data_count.
1856 * Allocate the correct amount and return the pointer to let
1857 * it be deallocated when we return.
1858 */
1859 SHADOW_COPY_DATA *shadow_data = NULL;
1860 TALLOC_CTX *shadow_mem_ctx = NULL;
1861 bool labels = False;
1862 uint32 labels_data_count = 0;
1863 uint32 i;
1864 char *cur_pdata;
1865
1866 if (!fsp_belongs_conn(conn, req, fsp, &current_user)) {
1867 return;
1868 }
1869
1870 if (max_data_count < 16) {
1871 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
1872 max_data_count));
1873 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1874 return;
1875 }
1876
1877 if (max_data_count > 16) {
1878 labels = True;
1879 }
1880
1881 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
1882 if (shadow_mem_ctx == NULL) {
1883 DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
1884 reply_nterror(req, NT_STATUS_NO_MEMORY);
1885 return;
1886 }
1887
1888 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
1889 if (shadow_data == NULL) {
1890 DEBUG(0,("TALLOC_ZERO() failed!\n"));
1891 talloc_destroy(shadow_mem_ctx);
1892 reply_nterror(req, NT_STATUS_NO_MEMORY);
1893 return;
1894 }
1895
1896 shadow_data->mem_ctx = shadow_mem_ctx;
1897
1898 /*
1899 * Call the VFS routine to actually do the work.
1900 */
1901 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
1902 talloc_destroy(shadow_data->mem_ctx);
1903 if (errno == ENOSYS) {
1904 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
1905 conn->connectpath));
1906 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1907 return;
1908 } else {
1909 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
1910 conn->connectpath));
1911 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
1912 return;
1913 }
1914 }
1915
1916 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
1917
1918 if (!labels) {
1919 data_count = 16;
1920 } else {
1921 data_count = 12+labels_data_count+4;
1922 }
1923
1924 if (max_data_count<data_count) {
1925 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
1926 max_data_count,data_count));
1927 talloc_destroy(shadow_data->mem_ctx);
1928 reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
1929 return;
1930 }
1931
1932 pdata = nttrans_realloc(ppdata, data_count);
1933 if (pdata == NULL) {
1934 talloc_destroy(shadow_data->mem_ctx);
1935 reply_nterror(req, NT_STATUS_NO_MEMORY);
1936 return;
1937 }
1938
1939 cur_pdata = pdata;
1940
1941 /* num_volumes 4 bytes */
1942 SIVAL(pdata,0,shadow_data->num_volumes);
1943
1944 if (labels) {
1945 /* num_labels 4 bytes */
1946 SIVAL(pdata,4,shadow_data->num_volumes);
1947 }
1948
1949 /* needed_data_count 4 bytes */
1950 SIVAL(pdata,8,labels_data_count);
1951
1952 cur_pdata+=12;
1953
1954 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
1955 shadow_data->num_volumes,fsp->fsp_name));
1956 if (labels && shadow_data->labels) {
1957 for (i=0;i<shadow_data->num_volumes;i++) {
1958 srvstr_push(pdata, req->flags2,
1959 cur_pdata, shadow_data->labels[i],
1960 2*sizeof(SHADOW_COPY_LABEL),
1961 STR_UNICODE|STR_TERMINATE);
1962 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
1963 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
1964 }
1965 }
1966
1967 talloc_destroy(shadow_data->mem_ctx);
1968
1969 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
1970 pdata, data_count);
1971
1972 return;
1973 }
1974
1975 case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
1976 {
1977 /* pretend this succeeded -
1978 *
1979 * we have to send back a list with all files owned by this SID
1980 *
1981 * but I have to check that --metze
1982 */
1983 DOM_SID sid;
1984 uid_t uid;
1985 size_t sid_len = MIN(data_count-4,SID_MAX_SIZE);
1986
1987 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
1988
1989 if (!fsp_belongs_conn(conn, req, fsp, &current_user)) {
1990 return;
1991 }
1992
1993 /* unknown 4 bytes: this is not the length of the sid :-( */
1994 /*unknown = IVAL(pdata,0);*/
1995
1996 sid_parse(pdata+4,sid_len,&sid);
1997 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
1998
1999 if (!sid_to_uid(&sid, &uid)) {
2000 DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
2001 sid_string_dbg(&sid),
2002 (unsigned long)sid_len));
2003 uid = (-1);
2004 }
2005
2006 /* we can take a look at the find source :-)
2007 *
2008 * find ./ -uid $uid -name '*' is what we need here
2009 *
2010 *
2011 * and send 4bytes len and then NULL terminated unicode strings
2012 * for each file
2013 *
2014 * but I don't know how to deal with the paged results
2015 * (maybe we can hang the result anywhere in the fsp struct)
2016 *
2017 * we don't send all files at once
2018 * and at the next we should *not* start from the beginning,
2019 * so we have to cache the result
2020 *
2021 * --metze
2022 */
2023
2024 /* this works for now... */
2025 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2026 return;
2027 }
2028 default:
2029 if (!logged_message) {
2030 logged_message = True; /* Only print this once... */
2031 DEBUG(0,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n",
2032 function));
2033 }
2034 }
2035
2036 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2037 }
2038
2039
2040 #ifdef HAVE_SYS_QUOTAS
2041 /****************************************************************************
2042 Reply to get user quota
2043 ****************************************************************************/
2044
2045 static void call_nt_transact_get_user_quota(connection_struct *conn,
2046 struct smb_request *req,
2047 uint16 **ppsetup,
2048 uint32 setup_count,
2049 char **ppparams,
2050 uint32 parameter_count,
2051 char **ppdata,
2052 uint32 data_count,
2053 uint32 max_data_count)
2054 {
2055 NTSTATUS nt_status = NT_STATUS_OK;
2056 char *params = *ppparams;
2057 char *pdata = *ppdata;
2058 char *entry;
2059 int data_len=0,param_len=0;
2060 int qt_len=0;
2061 int entry_len = 0;
2062 files_struct *fsp = NULL;
2063 uint16 level = 0;
2064 size_t sid_len;
2065 DOM_SID sid;
2066 bool start_enum = True;
2067 SMB_NTQUOTA_STRUCT qt;
2068 SMB_NTQUOTA_LIST *tmp_list;
2069 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2070
2071 ZERO_STRUCT(qt);
2072
2073 /* access check */
2074 if (current_user.ut.uid != 0) {
2075 DEBUG(1,("get_user_quota: access_denied service [%s] user [%s]\n",
2076 lp_servicename(SNUM(conn)),conn->user));
2077 reply_doserror(req, ERRDOS, ERRnoaccess);
2078 return;
2079 }
2080
2081 /*
2082 * Ensure minimum number of parameters sent.
2083 */
2084
2085 if (parameter_count < 4) {
2086 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2087 reply_doserror(req, ERRDOS, ERRinvalidparam);
2088 return;
2089 }
2090
2091 /* maybe we can check the quota_fnum */
2092 fsp = file_fsp(SVAL(params,0));
2093 if (!CHECK_NTQUOTA_HANDLE_OK(fsp,conn)) {
2094 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2095 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2096 return;
2097 }
2098
2099 /* the NULL pointer checking for fsp->fake_file_handle->pd
2100 * is done by CHECK_NTQUOTA_HANDLE_OK()
2101 */
2102 qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->pd;
2103
2104 level = SVAL(params,2);
2105
2106 /* unknown 12 bytes leading in params */
2107
2108 switch (level) {
2109 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2110 /* seems that we should continue with the enum here --metze */
2111
2112 if (qt_handle->quota_list!=NULL &&
2113 qt_handle->tmp_list==NULL) {
2114
2115 /* free the list */
2116 free_ntquota_list(&(qt_handle->quota_list));
2117
2118 /* Realloc the size of parameters and data we will return */
2119 param_len = 4;
2120 params = nttrans_realloc(ppparams, param_len);
2121 if(params == NULL) {
2122 reply_doserror(req, ERRDOS, ERRnomem);
2123 return;
2124 }
2125
2126 data_len = 0;
2127 SIVAL(params,0,data_len);
2128
2129 break;
2130 }
2131
2132 start_enum = False;
2133
2134 case TRANSACT_GET_USER_QUOTA_LIST_START:
2135
2136 if (qt_handle->quota_list==NULL &&
2137 qt_handle->tmp_list==NULL) {
2138 start_enum = True;
2139 }
2140
2141 if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2142 reply_doserror(req, ERRSRV, ERRerror);
2143 return;
2144 }
2145
2146 /* Realloc the size of parameters and data we will return */
2147 param_len = 4;
2148 params = nttrans_realloc(ppparams, param_len);
2149 if(params == NULL) {
2150 reply_doserror(req, ERRDOS, ERRnomem);
2151 return;
2152 }
2153
2154 /* we should not trust the value in max_data_count*/
2155 max_data_count = MIN(max_data_count,2048);
2156
2157 pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2158 if(pdata == NULL) {
2159 reply_doserror(req, ERRDOS, ERRnomem);
2160 return;
2161 }
2162
2163 entry = pdata;
2164
2165 /* set params Size of returned Quota Data 4 bytes*/
2166 /* but set it later when we know it */
2167
2168 /* for each entry push the data */
2169
2170 if (start_enum) {
2171 qt_handle->tmp_list = qt_handle->quota_list;
2172 }
2173
2174 tmp_list = qt_handle->tmp_list;
2175
2176 for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2177 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2178
2179 sid_len = ndr_size_dom_sid(
2180 &tmp_list->quotas->sid, 0);
2181 entry_len = 40 + sid_len;
2182
2183 /* nextoffset entry 4 bytes */
2184 SIVAL(entry,0,entry_len);
2185
2186 /* then the len of the SID 4 bytes */
2187 SIVAL(entry,4,sid_len);
2188
2189 /* unknown data 8 bytes SMB_BIG_UINT */
2190 SBIG_UINT(entry,8,(SMB_BIG_UINT)0); /* this is not 0 in windows...-metze*/
2191
2192 /* the used disk space 8 bytes SMB_BIG_UINT */
2193 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2194
2195 /* the soft quotas 8 bytes SMB_BIG_UINT */
2196 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2197
2198 /* the hard quotas 8 bytes SMB_BIG_UINT */
2199 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2200
2201 /* and now the SID */
2202 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2203 }
2204
2205 qt_handle->tmp_list = tmp_list;
2206
2207 /* overwrite the offset of the last entry */
2208 SIVAL(entry-entry_len,0,0);
2209
2210 data_len = 4+qt_len;
2211 /* overwrite the params quota_data_len */
2212 SIVAL(params,0,data_len);
2213
2214 break;
2215
2216 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2217
2218 /* unknown 4 bytes IVAL(pdata,0) */
2219
2220 if (data_count < 8) {
2221 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2222 reply_doserror(req, ERRDOS, ERRunknownlevel);
2223 return;
2224 }
2225
2226 sid_len = IVAL(pdata,4);
2227 /* Ensure this is less than 1mb. */
2228 if (sid_len > (1024*1024)) {
2229 reply_doserror(req, ERRDOS, ERRnomem);
2230 return;
2231 }
2232
2233 if (data_count < 8+sid_len) {
2234 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2235 reply_doserror(req, ERRDOS, ERRunknownlevel);
2236 return;
2237 }
2238
2239 data_len = 4+40+sid_len;
2240
2241 if (max_data_count < data_len) {
2242 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2243 max_data_count, data_len));
2244 param_len = 4;
2245 SIVAL(params,0,data_len);
2246 data_len = 0;
2247 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2248 break;
2249 }
2250
2251 sid_parse(pdata+8,sid_len,&sid);
2252
2253 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2254 ZERO_STRUCT(qt);
2255 /*
2256 * we have to return zero's in all fields
2257 * instead of returning an error here
2258 * --metze
2259 */
2260 }
2261
2262 /* Realloc the size of parameters and data we will return */
2263 param_len = 4;
2264 params = nttrans_realloc(ppparams, param_len);
2265 if(params == NULL) {
2266 reply_doserror(req, ERRDOS, ERRnomem);
2267 return;
2268 }
2269
2270 pdata = nttrans_realloc(ppdata, data_len);
2271 if(pdata == NULL) {
2272 reply_doserror(req, ERRDOS, ERRnomem);
2273 return;
2274 }
2275
2276 entry = pdata;
2277
2278 /* set params Size of returned Quota Data 4 bytes*/
2279 SIVAL(params,0,data_len);
2280
2281 /* nextoffset entry 4 bytes */
2282 SIVAL(entry,0,0);
2283
2284 /* then the len of the SID 4 bytes */
2285 SIVAL(entry,4,sid_len);
2286
2287 /* unknown data 8 bytes SMB_BIG_UINT */
2288 SBIG_UINT(entry,8,(SMB_BIG_UINT)0); /* this is not 0 in windows...-mezte*/
2289
2290 /* the used disk space 8 bytes SMB_BIG_UINT */
2291 SBIG_UINT(entry,16,qt.usedspace);
2292
2293 /* the soft quotas 8 bytes SMB_BIG_UINT */
2294 SBIG_UINT(entry,24,qt.softlim);
2295
2296 /* the hard quotas 8 bytes SMB_BIG_UINT */
2297 SBIG_UINT(entry,32,qt.hardlim);
2298
2299 /* and now the SID */
2300 sid_linearize(entry+40, sid_len, &sid);
2301
2302 break;
2303
2304 default:
2305 DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2306 reply_doserror(req, ERRSRV, ERRerror);
2307 return;
2308 break;
2309 }
2310
2311 send_nt_replies(conn, req, nt_status, params, param_len,
2312 pdata, data_len);
2313 }
2314
2315 /****************************************************************************
2316 Reply to set user quota
2317 ****************************************************************************/
2318
2319 static void call_nt_transact_set_user_quota(connection_struct *conn,
2320 struct smb_request *req,
2321 uint16 **ppsetup,
2322 uint32 setup_count,
2323 char **ppparams,
2324 uint32 parameter_count,
2325 char **ppdata,
2326 uint32 data_count,
2327 uint32 max_data_count)
2328 {
2329 char *params = *ppparams;
2330 char *pdata = *ppdata;
2331 int data_len=0,param_len=0;
2332 SMB_NTQUOTA_STRUCT qt;
2333 size_t sid_len;
2334 DOM_SID sid;
2335 files_struct *fsp = NULL;
2336
2337 ZERO_STRUCT(qt);
2338
2339 /* access check */
2340 if (current_user.ut.uid != 0) {
2341 DEBUG(1,("set_user_quota: access_denied service [%s] user [%s]\n",
2342 lp_servicename(SNUM(conn)),conn->user));
2343 reply_doserror(req, ERRDOS, ERRnoaccess);
2344 return;
2345 }
2346
2347 /*
2348 * Ensure minimum number of parameters sent.
2349 */
2350
2351 if (parameter_count < 2) {
2352 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2353 reply_doserror(req, ERRDOS, ERRinvalidparam);
2354 return;
2355 }
2356
2357 /* maybe we can check the quota_fnum */
2358 fsp = file_fsp(SVAL(params,0));
2359 if (!CHECK_NTQUOTA_HANDLE_OK(fsp,conn)) {
2360 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2361 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2362 return;
2363 }
2364
2365 if (data_count < 40) {
2366 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2367 reply_doserror(req, ERRDOS, ERRunknownlevel);
2368 return;
2369 }
2370
2371 /* offset to next quota record.
2372 * 4 bytes IVAL(pdata,0)
2373 * unused here...
2374 */
2375
2376 /* sid len */
2377 sid_len = IVAL(pdata,4);
2378
2379 if (data_count < 40+sid_len) {
2380 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2381 reply_doserror(req, ERRDOS, ERRunknownlevel);
2382 return;
2383 }
2384
2385 /* unknown 8 bytes in pdata
2386 * maybe its the change time in NTTIME
2387 */
2388
2389 /* the used space 8 bytes (SMB_BIG_UINT)*/
2390 qt.usedspace = (SMB_BIG_UINT)IVAL(pdata,16);
2391 #ifdef LARGE_SMB_OFF_T
2392 qt.usedspace |= (((SMB_BIG_UINT)IVAL(pdata,20)) << 32);
2393 #else /* LARGE_SMB_OFF_T */
2394 if ((IVAL(pdata,20) != 0)&&
2395 ((qt.usedspace != 0xFFFFFFFF)||
2396 (IVAL(pdata,20)!=0xFFFFFFFF))) {
2397 /* more than 32 bits? */
2398 reply_doserror(req, ERRDOS, ERRunknownlevel);
2399 return;
2400 }
2401 #endif /* LARGE_SMB_OFF_T */
2402
2403 /* the soft quotas 8 bytes (SMB_BIG_UINT)*/
2404 qt.softlim = (SMB_BIG_UINT)IVAL(pdata,24);
2405 #ifdef LARGE_SMB_OFF_T
2406 qt.softlim |= (((SMB_BIG_UINT)IVAL(pdata,28)) << 32);
2407 #else /* LARGE_SMB_OFF_T */
2408 if ((IVAL(pdata,28) != 0)&&
2409 ((qt.softlim != 0xFFFFFFFF)||
2410 (IVAL(pdata,28)!=0xFFFFFFFF))) {
2411 /* more than 32 bits? */
2412 reply_doserror(req, ERRDOS, ERRunknownlevel);
2413 return;
2414 }
2415 #endif /* LARGE_SMB_OFF_T */
2416
2417 /* the hard quotas 8 bytes (SMB_BIG_UINT)*/
2418 qt.hardlim = (SMB_BIG_UINT)IVAL(pdata,32);
2419 #ifdef LARGE_SMB_OFF_T
2420 qt.hardlim |= (((SMB_BIG_UINT)IVAL(pdata,36)) << 32);
2421 #else /* LARGE_SMB_OFF_T */
2422 if ((IVAL(pdata,36) != 0)&&
2423 ((qt.hardlim != 0xFFFFFFFF)||
2424 (IVAL(pdata,36)!=0xFFFFFFFF))) {
2425 /* more than 32 bits? */
2426 reply_doserror(req, ERRDOS, ERRunknownlevel);
2427 return;
2428 }
2429 #endif /* LARGE_SMB_OFF_T */
2430
2431 sid_parse(pdata+40,sid_len,&sid);
2432 DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2433
2434 /* 44 unknown bytes left... */
2435
2436 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2437 reply_doserror(req, ERRSRV, ERRerror);
2438 return;
2439 }
2440
2441 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2442 pdata, data_len);
2443 }
2444 #endif /* HAVE_SYS_QUOTAS */
2445
2446 static void handle_nttrans(connection_struct *conn,
2447 struct trans_state *state,
2448 struct smb_request *req)
2449 {
2450 if (Protocol >= PROTOCOL_NT1) {
2451 req->flags2 |= 0x40; /* IS_LONG_NAME */
2452 SSVAL(req->inbuf,smb_flg2,req->flags2);
2453 }
2454
2455 /* Now we must call the relevant NT_TRANS function */
2456 switch(state->call) {
2457 case NT_TRANSACT_CREATE:
2458 {
2459 START_PROFILE(NT_transact_create);
2460 call_nt_transact_create(
2461 conn, req,
2462 &state->setup, state->setup_count,
2463 &state->param, state->total_param,
2464 &state->data, state->total_data,
2465 state->max_data_return);
2466 END_PROFILE(NT_transact_create);
2467 break;
2468 }
2469
2470 case NT_TRANSACT_IOCTL:
2471 {
2472 START_PROFILE(NT_transact_ioctl);
2473 call_nt_transact_ioctl(
2474 conn, req,
2475 &state->setup, state->setup_count,
2476 &state->param, state->total_param,
2477 &state->data, state->total_data,
2478 state->max_data_return);
2479 END_PROFILE(NT_transact_ioctl);
2480 break;
2481 }
2482
2483 case NT_TRANSACT_SET_SECURITY_DESC:
2484 {
2485 START_PROFILE(NT_transact_set_security_desc);
2486 call_nt_transact_set_security_desc(
2487 conn, req,
2488 &state->setup, state->setup_count,
2489 &state->param, state->total_param,
2490 &state->data, state->total_data,
2491 state->max_data_return);
2492 END_PROFILE(NT_transact_set_security_desc);
2493 break;
2494 }
2495
2496 case NT_TRANSACT_NOTIFY_CHANGE:
2497 {
2498 START_PROFILE(NT_transact_notify_change);
2499 call_nt_transact_notify_change(
2500 conn, req,
2501 &state->setup, state->setup_count,
2502 &state->param, state->total_param,
2503 &state->data, state->total_data,
2504 state->max_data_return,
2505 state->max_param_return);
2506 END_PROFILE(NT_transact_notify_change);
2507 break;
2508 }
2509
2510 case NT_TRANSACT_RENAME:
2511 {
2512 START_PROFILE(NT_transact_rename);
2513 call_nt_transact_rename(
2514 conn, req,
2515 &state->setup, state->setup_count,
2516 &state->param, state->total_param,
2517 &state->data, state->total_data,
2518 state->max_data_return);
2519 END_PROFILE(NT_transact_rename);
2520 break;
2521 }
2522
2523 case NT_TRANSACT_QUERY_SECURITY_DESC:
2524 {
2525 START_PROFILE(NT_transact_query_security_desc);
2526 call_nt_transact_query_security_desc(
2527 conn, req,
2528 &state->setup, state->setup_count,
2529 &state->param, state->total_param,
2530 &state->data, state->total_data,
2531 state->max_data_return);
2532 END_PROFILE(NT_transact_query_security_desc);
2533 break;
2534 }
2535
2536 #ifdef HAVE_SYS_QUOTAS
2537 case NT_TRANSACT_GET_USER_QUOTA:
2538 {
2539 START_PROFILE(NT_transact_get_user_quota);
2540 call_nt_transact_get_user_quota(
2541 conn, req,
2542 &state->setup, state->setup_count,
2543 &state->param, state->total_param,
2544 &state->data, state->total_data,
2545 state->max_data_return);
2546 END_PROFILE(NT_transact_get_user_quota);
2547 break;
2548 }
2549
2550 case NT_TRANSACT_SET_USER_QUOTA:
2551 {
2552 START_PROFILE(NT_transact_set_user_quota);
2553 call_nt_transact_set_user_quota(
2554 conn, req,
2555 &state->setup, state->setup_count,
2556 &state->param, state->total_param,
2557 &state->data, state->total_data,
2558 state->max_data_return);
2559 END_PROFILE(NT_transact_set_user_quota);
2560 break;
2561 }
2562 #endif /* HAVE_SYS_QUOTAS */
2563
2564 default:
2565 /* Error in request */
2566 DEBUG(0,("handle_nttrans: Unknown request %d in "
2567 "nttrans call\n", state->call));
2568 reply_doserror(req, ERRSRV, ERRerror);
2569 return;
2570 }
2571 return;
2572 }
2573
2574 /****************************************************************************
2575 Reply to a SMBNTtrans.
2576 ****************************************************************************/
2577
2578 void reply_nttrans(struct smb_request *req)
2579 {
2580 connection_struct *conn = req->conn;
2581 uint32 pscnt;
2582 uint32 psoff;
2583 uint32 dscnt;
2584 uint32 dsoff;
2585 uint16 function_code;
2586 NTSTATUS result;
2587 struct trans_state *state;
2588 int size;
2589
2590 START_PROFILE(SMBnttrans);
2591
2592 if (req->wct < 19) {
2593 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2594 END_PROFILE(SMBnttrans);
2595 return;
2596 }
2597
2598 size = smb_len(req->inbuf) + 4;
2599 pscnt = IVAL(req->inbuf,smb_nt_ParameterCount);
2600 psoff = IVAL(req->inbuf,smb_nt_ParameterOffset);
2601 dscnt = IVAL(req->inbuf,smb_nt_DataCount);
2602 dsoff = IVAL(req->inbuf,smb_nt_DataOffset);
2603 function_code = SVAL(req->inbuf, smb_nt_Function);
2604
2605 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2606 reply_doserror(req, ERRSRV, ERRaccess);
2607 END_PROFILE(SMBnttrans);
2608 return;
2609 }
2610
2611 result = allow_new_trans(conn->pending_trans, req->mid);
2612 if (!NT_STATUS_IS_OK(result)) {
2613 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2614 reply_nterror(req, result);
2615 END_PROFILE(SMBnttrans);
2616 return;
2617 }
2618
2619 if ((state = TALLOC_P(conn->mem_ctx, struct trans_state)) == NULL) {
2620 reply_doserror(req, ERRSRV, ERRaccess);
2621 END_PROFILE(SMBnttrans);
2622 return;
2623 }
2624
2625 state->cmd = SMBnttrans;
2626
2627 state->mid = req->mid;
2628 state->vuid = req->vuid;
2629 state->total_data = IVAL(req->inbuf, smb_nt_TotalDataCount);
2630 state->data = NULL;
2631 state->total_param = IVAL(req->inbuf, smb_nt_TotalParameterCount);
2632 state->param = NULL;
2633 state->max_data_return = IVAL(req->inbuf,smb_nt_MaxDataCount);
2634 state->max_param_return = IVAL(req->inbuf,smb_nt_MaxParameterCount);
2635
2636 /* setup count is in *words* */
2637 state->setup_count = 2*CVAL(req->inbuf,smb_nt_SetupCount);
2638 state->setup = NULL;
2639 state->call = function_code;
2640
2641 /*
2642 * All nttrans messages we handle have smb_wct == 19 +
2643 * state->setup_count. Ensure this is so as a sanity check.
2644 */
2645
2646 if(req->wct != 19 + (state->setup_count/2)) {
2647 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2648 req->wct, 19 + (state->setup_count/2)));
2649 goto bad_param;
2650 }
2651
2652 /* Don't allow more than 128mb for each value. */
2653 if ((state->total_data > (1024*1024*128)) ||
2654 (state->total_param > (1024*1024*128))) {
2655 reply_doserror(req, ERRDOS, ERRnomem);
2656 END_PROFILE(SMBnttrans);
2657 return;
2658 }
2659
2660 if ((dscnt > state->total_data) || (pscnt > state->total_param))
2661 goto bad_param;
2662
2663 if (state->total_data) {
2664 /* Can't use talloc here, the core routines do realloc on the
2665 * params and data. */
2666 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2667 DEBUG(0,("reply_nttrans: data malloc fail for %u "
2668 "bytes !\n", (unsigned int)state->total_data));
2669 TALLOC_FREE(state);
2670 reply_doserror(req, ERRDOS, ERRnomem);
2671 END_PROFILE(SMBnttrans);
2672 return;
2673 }
2674 if ((dsoff+dscnt < dsoff) || (dsoff+dscnt < dscnt))
2675 goto bad_param;
2676 if ((smb_base(req->inbuf)+dsoff+dscnt
2677 > (char *)req->inbuf + size) ||
2678 (smb_base(req->inbuf)+dsoff+dscnt < smb_base(req->inbuf)))
2679 goto bad_param;
2680
2681 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2682 }
2683
2684 if (state->total_param) {
2685 /* Can't use talloc here, the core routines do realloc on the
2686 * params and data. */
2687 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2688 DEBUG(0,("reply_nttrans: param malloc fail for %u "
2689 "bytes !\n", (unsigned int)state->total_param));
2690 SAFE_FREE(state->data);
2691 TALLOC_FREE(state);
2692 reply_doserror(req, ERRDOS, ERRnomem);
2693 END_PROFILE(SMBnttrans);
2694 return;
2695 }
2696 if ((psoff+pscnt < psoff) || (psoff+pscnt < pscnt))
2697 goto bad_param;
2698 if ((smb_base(req->inbuf)+psoff+pscnt
2699 > (char *)req->inbuf + size) ||
2700 (smb_base(req->inbuf)+psoff+pscnt < smb_base(req->inbuf)))
2701 goto bad_param;
2702
2703 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2704 }
2705
2706 state->received_data = dscnt;
2707 state->received_param = pscnt;
2708
2709 if(state->setup_count > 0) {
2710 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2711 state->setup_count));
2712 state->setup = (uint16 *)TALLOC(state, state->setup_count);
2713 if (state->setup == NULL) {
2714 DEBUG(0,("reply_nttrans : Out of memory\n"));
2715 SAFE_FREE(state->data);
2716 SAFE_FREE(state->param);
2717 TALLOC_FREE(state);
2718 reply_doserror(req, ERRDOS, ERRnomem);
2719 END_PROFILE(SMBnttrans);
2720 return;
2721 }
2722
2723 if ((smb_nt_SetupStart + state->setup_count < smb_nt_SetupStart) ||
2724 (smb_nt_SetupStart + state->setup_count < state->setup_count)) {
2725 goto bad_param;
2726 }
2727 if (smb_nt_SetupStart + state->setup_count > size) {
2728 goto bad_param;
2729 }
2730
2731 memcpy( state->setup, &req->inbuf[smb_nt_SetupStart],
2732 state->setup_count);
2733 dump_data(10, (uint8 *)state->setup, state->setup_count);
2734 }
2735
2736 if ((state->received_data == state->total_data) &&
2737 (state->received_param == state->total_param)) {
2738 handle_nttrans(conn, state, req);
2739 SAFE_FREE(state->param);
2740 SAFE_FREE(state->data);
2741 TALLOC_FREE(state);
2742 END_PROFILE(SMBnttrans);
2743 return;
2744 }
2745
2746 DLIST_ADD(conn->pending_trans, state);
2747
2748 /* We need to send an interim response then receive the rest
2749 of the parameter/data bytes */
2750 reply_outbuf(req, 0, 0);
2751 show_msg((char *)req->outbuf);
2752 END_PROFILE(SMBnttrans);
2753 return;
2754
2755 bad_param:
2756
2757 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2758 SAFE_FREE(state->data);
2759 SAFE_FREE(state->param);
2760 TALLOC_FREE(state);
2761 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2762 END_PROFILE(SMBnttrans);
2763 return;
2764 }
2765
2766 /****************************************************************************
2767 Reply to a SMBnttranss
2768 ****************************************************************************/
2769
2770 void reply_nttranss(struct smb_request *req)
2771 {
2772 connection_struct *conn = req->conn;
2773 unsigned int pcnt,poff,dcnt,doff,pdisp,ddisp;
2774 struct trans_state *state;
2775
2776 int size;
2777
2778 START_PROFILE(SMBnttranss);
2779
2780 show_msg((char *)req->inbuf);
2781
2782 if (req->wct < 18) {
2783 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2784 END_PROFILE(SMBnttranss);
2785 return;
2786 }
2787
2788 for (state = conn->pending_trans; state != NULL;
2789 state = state->next) {
2790 if (state->mid == req->mid) {
2791 break;
2792 }
2793 }
2794
2795 if ((state == NULL) || (state->cmd != SMBnttrans)) {
2796 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2797 END_PROFILE(SMBnttranss);
2798 return;
2799 }
2800
2801 /* Revise state->total_param and state->total_data in case they have
2802 changed downwards */
2803 if (IVAL(req->inbuf, smb_nts_TotalParameterCount)
2804 < state->total_param) {
2805 state->total_param = IVAL(req->inbuf,
2806 smb_nts_TotalParameterCount);
2807 }
2808 if (IVAL(req->inbuf, smb_nts_TotalDataCount) < state->total_data) {
2809 state->total_data = IVAL(req->inbuf, smb_nts_TotalDataCount);
2810 }
2811
2812 size = smb_len(req->inbuf) + 4;
2813
2814 pcnt = IVAL(req->inbuf,smb_nts_ParameterCount);
2815 poff = IVAL(req->inbuf, smb_nts_ParameterOffset);
2816 pdisp = IVAL(req->inbuf, smb_nts_ParameterDisplacement);
2817
2818 dcnt = IVAL(req->inbuf, smb_nts_DataCount);
2819 ddisp = IVAL(req->inbuf, smb_nts_DataDisplacement);
2820 doff = IVAL(req->inbuf, smb_nts_DataOffset);
2821
2822 state->received_param += pcnt;
2823 state->received_data += dcnt;
2824
2825 if ((state->received_data > state->total_data) ||
2826 (state->received_param > state->total_param))
2827 goto bad_param;
2828
2829 if (pcnt) {
2830 if (pdisp+pcnt > state->total_param)
2831 goto bad_param;
2832 if ((pdisp+pcnt < pdisp) || (pdisp+pcnt < pcnt))
2833 goto bad_param;
2834 if (pdisp > state->total_param)
2835 goto bad_param;
2836 if ((smb_base(req->inbuf) + poff + pcnt
2837 > (char *)req->inbuf + size) ||
2838 (smb_base(req->inbuf) + poff + pcnt
2839 < smb_base(req->inbuf)))
2840 goto bad_param;
2841 if (state->param + pdisp < state->param)
2842 goto bad_param;
2843
2844 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,
2845 pcnt);
2846 }
2847
2848 if (dcnt) {
2849 if (ddisp+dcnt > state->total_data)
2850 goto bad_param;
2851 if ((ddisp+dcnt < ddisp) || (ddisp+dcnt < dcnt))
2852 goto bad_param;
2853 if (ddisp > state->total_data)
2854 goto bad_param;
2855 if ((smb_base(req->inbuf) + doff + dcnt
2856 > (char *)req->inbuf + size) ||
2857 (smb_base(req->inbuf) + doff + dcnt
2858 < smb_base(req->inbuf)))
2859 goto bad_param;
2860 if (state->data + ddisp < state->data)
2861 goto bad_param;
2862
2863 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,
2864 dcnt);
2865 }
2866
2867 if ((state->received_param < state->total_param) ||
2868 (state->received_data < state->total_data)) {
2869 END_PROFILE(SMBnttranss);
2870 return;
2871 }
2872
2873 /*
2874 * construct_reply_common will copy smb_com from inbuf to
2875 * outbuf. SMBnttranss is wrong here.
2876 */
2877 SCVAL(req->inbuf,smb_com,SMBnttrans);
2878
2879 handle_nttrans(conn, state, req);
2880
2881 DLIST_REMOVE(conn->pending_trans, state);
2882 SAFE_FREE(state->data);
2883 SAFE_FREE(state->param);
2884 TALLOC_FREE(state);
2885 END_PROFILE(SMBnttranss);
2886 return;
2887
2888 bad_param:
2889
2890 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
2891 DLIST_REMOVE(conn->pending_trans, state);
2892 SAFE_FREE(state->data);
2893 SAFE_FREE(state->param);
2894 TALLOC_FREE(state);
2895 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2896 END_PROFILE(SMBnttranss);
2897 return;
2898 }
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