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smbd: implement the strange write time update logic
[Samba/bb.git] / source3 / smbd / nttrans.c
blob05c0957e4fe9038b02993332fa68774c25d31122
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 set_close_write_time(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 dest_has_wcard = False;
1522 NTSTATUS status;
1523 TALLOC_CTX *ctx = talloc_tos();
1524
1525 if(parameter_count < 5) {
1526 reply_doserror(req, ERRDOS, ERRbadfunc);
1527 return;
1528 }
1529
1530 fsp = file_fsp(SVAL(params, 0));
1531 if (!check_fsp(conn, req, fsp, &current_user)) {
1532 return;
1533 }
1534 srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1535 parameter_count - 4,
1536 STR_TERMINATE, &status, &dest_has_wcard);
1537 if (!NT_STATUS_IS_OK(status)) {
1538 reply_nterror(req, status);
1539 return;
1540 }
1541
1542 /*
1543 * W2K3 ignores this request as the RAW-RENAME test
1544 * demonstrates, so we do.
1545 */
1546 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1547
1548 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1549 fsp->fsp_name, new_name));
1550
1551 return;
1552 }
1553
1554 /******************************************************************************
1555 Fake up a completely empty SD.
1556 *******************************************************************************/
1557
1558 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
1559 {
1560 size_t sd_size;
1561
1562 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1563 if(!*ppsd) {
1564 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1565 return NT_STATUS_NO_MEMORY;
1566 }
1567
1568 return NT_STATUS_OK;
1569 }
1570
1571 /****************************************************************************
1572 Reply to query a security descriptor.
1573 ****************************************************************************/
1574
1575 static void call_nt_transact_query_security_desc(connection_struct *conn,
1576 struct smb_request *req,
1577 uint16 **ppsetup,
1578 uint32 setup_count,
1579 char **ppparams,
1580 uint32 parameter_count,
1581 char **ppdata,
1582 uint32 data_count,
1583 uint32 max_data_count)
1584 {
1585 char *params = *ppparams;
1586 char *data = *ppdata;
1587 SEC_DESC *psd = NULL;
1588 size_t sd_size;
1589 uint32 security_info_wanted;
1590 files_struct *fsp = NULL;
1591 NTSTATUS status;
1592 DATA_BLOB blob;
1593
1594 if(parameter_count < 8) {
1595 reply_doserror(req, ERRDOS, ERRbadfunc);
1596 return;
1597 }
1598
1599 fsp = file_fsp(SVAL(params,0));
1600 if(!fsp) {
1601 reply_doserror(req, ERRDOS, ERRbadfid);
1602 return;
1603 }
1604
1605 security_info_wanted = IVAL(params,4);
1606
1607 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, info_wanted = 0x%x\n", fsp->fsp_name,
1608 (unsigned int)security_info_wanted ));
1609
1610 params = nttrans_realloc(ppparams, 4);
1611 if(params == NULL) {
1612 reply_doserror(req, ERRDOS, ERRnomem);
1613 return;
1614 }
1615
1616 /*
1617 * Get the permissions to return.
1618 */
1619
1620 if (!lp_nt_acl_support(SNUM(conn))) {
1621 status = get_null_nt_acl(talloc_tos(), &psd);
1622 } else {
1623 if (fsp->fh->fd != -1) {
1624 status = SMB_VFS_FGET_NT_ACL(
1625 fsp, security_info_wanted, &psd);
1626 }
1627 else {
1628 status = SMB_VFS_GET_NT_ACL(
1629 conn, fsp->fsp_name, security_info_wanted, &psd);
1630 }
1631 }
1632
1633 if (!NT_STATUS_IS_OK(status)) {
1634 reply_nterror(req, status);
1635 return;
1636 }
1637
1638 sd_size = ndr_size_security_descriptor(psd, 0);
1639
1640 DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %lu.\n",(unsigned long)sd_size));
1641
1642 SIVAL(params,0,(uint32)sd_size);
1643
1644 if (max_data_count < sd_size) {
1645 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1646 params, 4, *ppdata, 0);
1647 return;
1648 }
1649
1650 /*
1651 * Allocate the data we will point this at.
1652 */
1653
1654 data = nttrans_realloc(ppdata, sd_size);
1655 if(data == NULL) {
1656 reply_doserror(req, ERRDOS, ERRnomem);
1657 return;
1658 }
1659
1660 status = marshall_sec_desc(talloc_tos(), psd,
1661 &blob.data, &blob.length);
1662
1663 if (!NT_STATUS_IS_OK(status)) {
1664 reply_nterror(req, status);
1665 return;
1666 }
1667
1668 SMB_ASSERT(sd_size == blob.length);
1669 memcpy(data, blob.data, sd_size);
1670
1671 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
1672
1673 return;
1674 }
1675
1676 /****************************************************************************
1677 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
1678 ****************************************************************************/
1679
1680 static void call_nt_transact_set_security_desc(connection_struct *conn,
1681 struct smb_request *req,
1682 uint16 **ppsetup,
1683 uint32 setup_count,
1684 char **ppparams,
1685 uint32 parameter_count,
1686 char **ppdata,
1687 uint32 data_count,
1688 uint32 max_data_count)
1689 {
1690 char *params= *ppparams;
1691 char *data = *ppdata;
1692 files_struct *fsp = NULL;
1693 uint32 security_info_sent = 0;
1694 NTSTATUS status;
1695
1696 if(parameter_count < 8) {
1697 reply_doserror(req, ERRDOS, ERRbadfunc);
1698 return;
1699 }
1700
1701 if((fsp = file_fsp(SVAL(params,0))) == NULL) {
1702 reply_doserror(req, ERRDOS, ERRbadfid);
1703 return;
1704 }
1705
1706 if(!lp_nt_acl_support(SNUM(conn))) {
1707 goto done;
1708 }
1709
1710 security_info_sent = IVAL(params,4);
1711
1712 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n", fsp->fsp_name,
1713 (unsigned int)security_info_sent ));
1714
1715 if (data_count == 0) {
1716 reply_doserror(req, ERRDOS, ERRnoaccess);
1717 return;
1718 }
1719
1720 status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
1721
1722 if (!NT_STATUS_IS_OK(status)) {
1723 reply_nterror(req, status);
1724 return;
1725 }
1726
1727 done:
1728 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1729 return;
1730 }
1731
1732 /****************************************************************************
1733 Reply to NT IOCTL
1734 ****************************************************************************/
1735
1736 static void call_nt_transact_ioctl(connection_struct *conn,
1737 struct smb_request *req,
1738 uint16 **ppsetup, uint32 setup_count,
1739 char **ppparams, uint32 parameter_count,
1740 char **ppdata, uint32 data_count,
1741 uint32 max_data_count)
1742 {
1743 uint32 function;
1744 uint16 fidnum;
1745 files_struct *fsp;
1746 uint8 isFSctl;
1747 uint8 compfilter;
1748 static bool logged_message;
1749 char *pdata = *ppdata;
1750
1751 if (setup_count != 8) {
1752 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
1753 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1754 return;
1755 }
1756
1757 function = IVAL(*ppsetup, 0);
1758 fidnum = SVAL(*ppsetup, 4);
1759 isFSctl = CVAL(*ppsetup, 6);
1760 compfilter = CVAL(*ppsetup, 7);
1761
1762 DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
1763 function, fidnum, isFSctl, compfilter));
1764
1765 fsp=file_fsp(fidnum);
1766 /* this check is done in each implemented function case for now
1767 because I don't want to break anything... --metze
1768 FSP_BELONGS_CONN(fsp,conn);*/
1769
1770 switch (function) {
1771 case FSCTL_SET_SPARSE:
1772 /* pretend this succeeded - tho strictly we should
1773 mark the file sparse (if the local fs supports it)
1774 so we can know if we need to pre-allocate or not */
1775
1776 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum));
1777 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1778 return;
1779
1780 case FSCTL_CREATE_OR_GET_OBJECT_ID:
1781 {
1782 unsigned char objid[16];
1783
1784 /* This should return the object-id on this file.
1785 * I think I'll make this be the inode+dev. JRA.
1786 */
1787
1788 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
1789
1790 if (!fsp_belongs_conn(conn, req, fsp, &current_user)) {
1791 return;
1792 }
1793
1794 data_count = 64;
1795 pdata = nttrans_realloc(ppdata, data_count);
1796 if (pdata == NULL) {
1797 reply_nterror(req, NT_STATUS_NO_MEMORY);
1798 return;
1799 }
1800 push_file_id_16(pdata, &fsp->file_id);
1801 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
1802 push_file_id_16(pdata+32, &fsp->file_id);
1803 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
1804 pdata, data_count);
1805 return;
1806 }
1807
1808 case FSCTL_GET_REPARSE_POINT:
1809 /* pretend this fail - my winXP does it like this
1810 * --metze
1811 */
1812
1813 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1814 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1815 return;
1816
1817 case FSCTL_SET_REPARSE_POINT:
1818 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
1819 * --metze
1820 */
1821
1822 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1823 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1824 return;
1825
1826 case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
1827 {
1828 /*
1829 * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
1830 * and return their volume names. If max_data_count is 16, then it is just
1831 * asking for the number of volumes and length of the combined names.
1832 *
1833 * pdata is the data allocated by our caller, but that uses
1834 * total_data_count (which is 0 in our case) rather than max_data_count.
1835 * Allocate the correct amount and return the pointer to let
1836 * it be deallocated when we return.
1837 */
1838 SHADOW_COPY_DATA *shadow_data = NULL;
1839 TALLOC_CTX *shadow_mem_ctx = NULL;
1840 bool labels = False;
1841 uint32 labels_data_count = 0;
1842 uint32 i;
1843 char *cur_pdata;
1844
1845 if (!fsp_belongs_conn(conn, req, fsp, &current_user)) {
1846 return;
1847 }
1848
1849 if (max_data_count < 16) {
1850 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
1851 max_data_count));
1852 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1853 return;
1854 }
1855
1856 if (max_data_count > 16) {
1857 labels = True;
1858 }
1859
1860 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
1861 if (shadow_mem_ctx == NULL) {
1862 DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
1863 reply_nterror(req, NT_STATUS_NO_MEMORY);
1864 return;
1865 }
1866
1867 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
1868 if (shadow_data == NULL) {
1869 DEBUG(0,("TALLOC_ZERO() failed!\n"));
1870 talloc_destroy(shadow_mem_ctx);
1871 reply_nterror(req, NT_STATUS_NO_MEMORY);
1872 return;
1873 }
1874
1875 shadow_data->mem_ctx = shadow_mem_ctx;
1876
1877 /*
1878 * Call the VFS routine to actually do the work.
1879 */
1880 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
1881 talloc_destroy(shadow_data->mem_ctx);
1882 if (errno == ENOSYS) {
1883 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
1884 conn->connectpath));
1885 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1886 return;
1887 } else {
1888 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
1889 conn->connectpath));
1890 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
1891 return;
1892 }
1893 }
1894
1895 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
1896
1897 if (!labels) {
1898 data_count = 16;
1899 } else {
1900 data_count = 12+labels_data_count+4;
1901 }
1902
1903 if (max_data_count<data_count) {
1904 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
1905 max_data_count,data_count));
1906 talloc_destroy(shadow_data->mem_ctx);
1907 reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
1908 return;
1909 }
1910
1911 pdata = nttrans_realloc(ppdata, data_count);
1912 if (pdata == NULL) {
1913 talloc_destroy(shadow_data->mem_ctx);
1914 reply_nterror(req, NT_STATUS_NO_MEMORY);
1915 return;
1916 }
1917
1918 cur_pdata = pdata;
1919
1920 /* num_volumes 4 bytes */
1921 SIVAL(pdata,0,shadow_data->num_volumes);
1922
1923 if (labels) {
1924 /* num_labels 4 bytes */
1925 SIVAL(pdata,4,shadow_data->num_volumes);
1926 }
1927
1928 /* needed_data_count 4 bytes */
1929 SIVAL(pdata,8,labels_data_count);
1930
1931 cur_pdata+=12;
1932
1933 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
1934 shadow_data->num_volumes,fsp->fsp_name));
1935 if (labels && shadow_data->labels) {
1936 for (i=0;i<shadow_data->num_volumes;i++) {
1937 srvstr_push(pdata, req->flags2,
1938 cur_pdata, shadow_data->labels[i],
1939 2*sizeof(SHADOW_COPY_LABEL),
1940 STR_UNICODE|STR_TERMINATE);
1941 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
1942 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
1943 }
1944 }
1945
1946 talloc_destroy(shadow_data->mem_ctx);
1947
1948 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
1949 pdata, data_count);
1950
1951 return;
1952 }
1953
1954 case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
1955 {
1956 /* pretend this succeeded -
1957 *
1958 * we have to send back a list with all files owned by this SID
1959 *
1960 * but I have to check that --metze
1961 */
1962 DOM_SID sid;
1963 uid_t uid;
1964 size_t sid_len = MIN(data_count-4,SID_MAX_SIZE);
1965
1966 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
1967
1968 if (!fsp_belongs_conn(conn, req, fsp, &current_user)) {
1969 return;
1970 }
1971
1972 /* unknown 4 bytes: this is not the length of the sid :-( */
1973 /*unknown = IVAL(pdata,0);*/
1974
1975 sid_parse(pdata+4,sid_len,&sid);
1976 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
1977
1978 if (!sid_to_uid(&sid, &uid)) {
1979 DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
1980 sid_string_dbg(&sid),
1981 (unsigned long)sid_len));
1982 uid = (-1);
1983 }
1984
1985 /* we can take a look at the find source :-)
1986 *
1987 * find ./ -uid $uid -name '*' is what we need here
1988 *
1989 *
1990 * and send 4bytes len and then NULL terminated unicode strings
1991 * for each file
1992 *
1993 * but I don't know how to deal with the paged results
1994 * (maybe we can hang the result anywhere in the fsp struct)
1995 *
1996 * we don't send all files at once
1997 * and at the next we should *not* start from the beginning,
1998 * so we have to cache the result
1999 *
2000 * --metze
2001 */
2002
2003 /* this works for now... */
2004 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2005 return;
2006 }
2007 default:
2008 if (!logged_message) {
2009 logged_message = True; /* Only print this once... */
2010 DEBUG(0,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n",
2011 function));
2012 }
2013 }
2014
2015 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2016 }
2017
2018
2019 #ifdef HAVE_SYS_QUOTAS
2020 /****************************************************************************
2021 Reply to get user quota
2022 ****************************************************************************/
2023
2024 static void call_nt_transact_get_user_quota(connection_struct *conn,
2025 struct smb_request *req,
2026 uint16 **ppsetup,
2027 uint32 setup_count,
2028 char **ppparams,
2029 uint32 parameter_count,
2030 char **ppdata,
2031 uint32 data_count,
2032 uint32 max_data_count)
2033 {
2034 NTSTATUS nt_status = NT_STATUS_OK;
2035 char *params = *ppparams;
2036 char *pdata = *ppdata;
2037 char *entry;
2038 int data_len=0,param_len=0;
2039 int qt_len=0;
2040 int entry_len = 0;
2041 files_struct *fsp = NULL;
2042 uint16 level = 0;
2043 size_t sid_len;
2044 DOM_SID sid;
2045 bool start_enum = True;
2046 SMB_NTQUOTA_STRUCT qt;
2047 SMB_NTQUOTA_LIST *tmp_list;
2048 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2049
2050 ZERO_STRUCT(qt);
2051
2052 /* access check */
2053 if (current_user.ut.uid != 0) {
2054 DEBUG(1,("get_user_quota: access_denied service [%s] user [%s]\n",
2055 lp_servicename(SNUM(conn)),conn->user));
2056 reply_doserror(req, ERRDOS, ERRnoaccess);
2057 return;
2058 }
2059
2060 /*
2061 * Ensure minimum number of parameters sent.
2062 */
2063
2064 if (parameter_count < 4) {
2065 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2066 reply_doserror(req, ERRDOS, ERRinvalidparam);
2067 return;
2068 }
2069
2070 /* maybe we can check the quota_fnum */
2071 fsp = file_fsp(SVAL(params,0));
2072 if (!CHECK_NTQUOTA_HANDLE_OK(fsp,conn)) {
2073 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2074 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2075 return;
2076 }
2077
2078 /* the NULL pointer checking for fsp->fake_file_handle->pd
2079 * is done by CHECK_NTQUOTA_HANDLE_OK()
2080 */
2081 qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->pd;
2082
2083 level = SVAL(params,2);
2084
2085 /* unknown 12 bytes leading in params */
2086
2087 switch (level) {
2088 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2089 /* seems that we should continue with the enum here --metze */
2090
2091 if (qt_handle->quota_list!=NULL &&
2092 qt_handle->tmp_list==NULL) {
2093
2094 /* free the list */
2095 free_ntquota_list(&(qt_handle->quota_list));
2096
2097 /* Realloc the size of parameters and data we will return */
2098 param_len = 4;
2099 params = nttrans_realloc(ppparams, param_len);
2100 if(params == NULL) {
2101 reply_doserror(req, ERRDOS, ERRnomem);
2102 return;
2103 }
2104
2105 data_len = 0;
2106 SIVAL(params,0,data_len);
2107
2108 break;
2109 }
2110
2111 start_enum = False;
2112
2113 case TRANSACT_GET_USER_QUOTA_LIST_START:
2114
2115 if (qt_handle->quota_list==NULL &&
2116 qt_handle->tmp_list==NULL) {
2117 start_enum = True;
2118 }
2119
2120 if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2121 reply_doserror(req, ERRSRV, ERRerror);
2122 return;
2123 }
2124
2125 /* Realloc the size of parameters and data we will return */
2126 param_len = 4;
2127 params = nttrans_realloc(ppparams, param_len);
2128 if(params == NULL) {
2129 reply_doserror(req, ERRDOS, ERRnomem);
2130 return;
2131 }
2132
2133 /* we should not trust the value in max_data_count*/
2134 max_data_count = MIN(max_data_count,2048);
2135
2136 pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2137 if(pdata == NULL) {
2138 reply_doserror(req, ERRDOS, ERRnomem);
2139 return;
2140 }
2141
2142 entry = pdata;
2143
2144 /* set params Size of returned Quota Data 4 bytes*/
2145 /* but set it later when we know it */
2146
2147 /* for each entry push the data */
2148
2149 if (start_enum) {
2150 qt_handle->tmp_list = qt_handle->quota_list;
2151 }
2152
2153 tmp_list = qt_handle->tmp_list;
2154
2155 for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2156 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2157
2158 sid_len = ndr_size_dom_sid(
2159 &tmp_list->quotas->sid, 0);
2160 entry_len = 40 + sid_len;
2161
2162 /* nextoffset entry 4 bytes */
2163 SIVAL(entry,0,entry_len);
2164
2165 /* then the len of the SID 4 bytes */
2166 SIVAL(entry,4,sid_len);
2167
2168 /* unknown data 8 bytes SMB_BIG_UINT */
2169 SBIG_UINT(entry,8,(SMB_BIG_UINT)0); /* this is not 0 in windows...-metze*/
2170
2171 /* the used disk space 8 bytes SMB_BIG_UINT */
2172 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2173
2174 /* the soft quotas 8 bytes SMB_BIG_UINT */
2175 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2176
2177 /* the hard quotas 8 bytes SMB_BIG_UINT */
2178 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2179
2180 /* and now the SID */
2181 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2182 }
2183
2184 qt_handle->tmp_list = tmp_list;
2185
2186 /* overwrite the offset of the last entry */
2187 SIVAL(entry-entry_len,0,0);
2188
2189 data_len = 4+qt_len;
2190 /* overwrite the params quota_data_len */
2191 SIVAL(params,0,data_len);
2192
2193 break;
2194
2195 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2196
2197 /* unknown 4 bytes IVAL(pdata,0) */
2198
2199 if (data_count < 8) {
2200 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2201 reply_doserror(req, ERRDOS, ERRunknownlevel);
2202 return;
2203 }
2204
2205 sid_len = IVAL(pdata,4);
2206 /* Ensure this is less than 1mb. */
2207 if (sid_len > (1024*1024)) {
2208 reply_doserror(req, ERRDOS, ERRnomem);
2209 return;
2210 }
2211
2212 if (data_count < 8+sid_len) {
2213 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2214 reply_doserror(req, ERRDOS, ERRunknownlevel);
2215 return;
2216 }
2217
2218 data_len = 4+40+sid_len;
2219
2220 if (max_data_count < data_len) {
2221 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2222 max_data_count, data_len));
2223 param_len = 4;
2224 SIVAL(params,0,data_len);
2225 data_len = 0;
2226 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2227 break;
2228 }
2229
2230 sid_parse(pdata+8,sid_len,&sid);
2231
2232 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2233 ZERO_STRUCT(qt);
2234 /*
2235 * we have to return zero's in all fields
2236 * instead of returning an error here
2237 * --metze
2238 */
2239 }
2240
2241 /* Realloc the size of parameters and data we will return */
2242 param_len = 4;
2243 params = nttrans_realloc(ppparams, param_len);
2244 if(params == NULL) {
2245 reply_doserror(req, ERRDOS, ERRnomem);
2246 return;
2247 }
2248
2249 pdata = nttrans_realloc(ppdata, data_len);
2250 if(pdata == NULL) {
2251 reply_doserror(req, ERRDOS, ERRnomem);
2252 return;
2253 }
2254
2255 entry = pdata;
2256
2257 /* set params Size of returned Quota Data 4 bytes*/
2258 SIVAL(params,0,data_len);
2259
2260 /* nextoffset entry 4 bytes */
2261 SIVAL(entry,0,0);
2262
2263 /* then the len of the SID 4 bytes */
2264 SIVAL(entry,4,sid_len);
2265
2266 /* unknown data 8 bytes SMB_BIG_UINT */
2267 SBIG_UINT(entry,8,(SMB_BIG_UINT)0); /* this is not 0 in windows...-mezte*/
2268
2269 /* the used disk space 8 bytes SMB_BIG_UINT */
2270 SBIG_UINT(entry,16,qt.usedspace);
2271
2272 /* the soft quotas 8 bytes SMB_BIG_UINT */
2273 SBIG_UINT(entry,24,qt.softlim);
2274
2275 /* the hard quotas 8 bytes SMB_BIG_UINT */
2276 SBIG_UINT(entry,32,qt.hardlim);
2277
2278 /* and now the SID */
2279 sid_linearize(entry+40, sid_len, &sid);
2280
2281 break;
2282
2283 default:
2284 DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2285 reply_doserror(req, ERRSRV, ERRerror);
2286 return;
2287 break;
2288 }
2289
2290 send_nt_replies(conn, req, nt_status, params, param_len,
2291 pdata, data_len);
2292 }
2293
2294 /****************************************************************************
2295 Reply to set user quota
2296 ****************************************************************************/
2297
2298 static void call_nt_transact_set_user_quota(connection_struct *conn,
2299 struct smb_request *req,
2300 uint16 **ppsetup,
2301 uint32 setup_count,
2302 char **ppparams,
2303 uint32 parameter_count,
2304 char **ppdata,
2305 uint32 data_count,
2306 uint32 max_data_count)
2307 {
2308 char *params = *ppparams;
2309 char *pdata = *ppdata;
2310 int data_len=0,param_len=0;
2311 SMB_NTQUOTA_STRUCT qt;
2312 size_t sid_len;
2313 DOM_SID sid;
2314 files_struct *fsp = NULL;
2315
2316 ZERO_STRUCT(qt);
2317
2318 /* access check */
2319 if (current_user.ut.uid != 0) {
2320 DEBUG(1,("set_user_quota: access_denied service [%s] user [%s]\n",
2321 lp_servicename(SNUM(conn)),conn->user));
2322 reply_doserror(req, ERRDOS, ERRnoaccess);
2323 return;
2324 }
2325
2326 /*
2327 * Ensure minimum number of parameters sent.
2328 */
2329
2330 if (parameter_count < 2) {
2331 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2332 reply_doserror(req, ERRDOS, ERRinvalidparam);
2333 return;
2334 }
2335
2336 /* maybe we can check the quota_fnum */
2337 fsp = file_fsp(SVAL(params,0));
2338 if (!CHECK_NTQUOTA_HANDLE_OK(fsp,conn)) {
2339 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2340 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2341 return;
2342 }
2343
2344 if (data_count < 40) {
2345 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2346 reply_doserror(req, ERRDOS, ERRunknownlevel);
2347 return;
2348 }
2349
2350 /* offset to next quota record.
2351 * 4 bytes IVAL(pdata,0)
2352 * unused here...
2353 */
2354
2355 /* sid len */
2356 sid_len = IVAL(pdata,4);
2357
2358 if (data_count < 40+sid_len) {
2359 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2360 reply_doserror(req, ERRDOS, ERRunknownlevel);
2361 return;
2362 }
2363
2364 /* unknown 8 bytes in pdata
2365 * maybe its the change time in NTTIME
2366 */
2367
2368 /* the used space 8 bytes (SMB_BIG_UINT)*/
2369 qt.usedspace = (SMB_BIG_UINT)IVAL(pdata,16);
2370 #ifdef LARGE_SMB_OFF_T
2371 qt.usedspace |= (((SMB_BIG_UINT)IVAL(pdata,20)) << 32);
2372 #else /* LARGE_SMB_OFF_T */
2373 if ((IVAL(pdata,20) != 0)&&
2374 ((qt.usedspace != 0xFFFFFFFF)||
2375 (IVAL(pdata,20)!=0xFFFFFFFF))) {
2376 /* more than 32 bits? */
2377 reply_doserror(req, ERRDOS, ERRunknownlevel);
2378 return;
2379 }
2380 #endif /* LARGE_SMB_OFF_T */
2381
2382 /* the soft quotas 8 bytes (SMB_BIG_UINT)*/
2383 qt.softlim = (SMB_BIG_UINT)IVAL(pdata,24);
2384 #ifdef LARGE_SMB_OFF_T
2385 qt.softlim |= (((SMB_BIG_UINT)IVAL(pdata,28)) << 32);
2386 #else /* LARGE_SMB_OFF_T */
2387 if ((IVAL(pdata,28) != 0)&&
2388 ((qt.softlim != 0xFFFFFFFF)||
2389 (IVAL(pdata,28)!=0xFFFFFFFF))) {
2390 /* more than 32 bits? */
2391 reply_doserror(req, ERRDOS, ERRunknownlevel);
2392 return;
2393 }
2394 #endif /* LARGE_SMB_OFF_T */
2395
2396 /* the hard quotas 8 bytes (SMB_BIG_UINT)*/
2397 qt.hardlim = (SMB_BIG_UINT)IVAL(pdata,32);
2398 #ifdef LARGE_SMB_OFF_T
2399 qt.hardlim |= (((SMB_BIG_UINT)IVAL(pdata,36)) << 32);
2400 #else /* LARGE_SMB_OFF_T */
2401 if ((IVAL(pdata,36) != 0)&&
2402 ((qt.hardlim != 0xFFFFFFFF)||
2403 (IVAL(pdata,36)!=0xFFFFFFFF))) {
2404 /* more than 32 bits? */
2405 reply_doserror(req, ERRDOS, ERRunknownlevel);
2406 return;
2407 }
2408 #endif /* LARGE_SMB_OFF_T */
2409
2410 sid_parse(pdata+40,sid_len,&sid);
2411 DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2412
2413 /* 44 unknown bytes left... */
2414
2415 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2416 reply_doserror(req, ERRSRV, ERRerror);
2417 return;
2418 }
2419
2420 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2421 pdata, data_len);
2422 }
2423 #endif /* HAVE_SYS_QUOTAS */
2424
2425 static void handle_nttrans(connection_struct *conn,
2426 struct trans_state *state,
2427 struct smb_request *req)
2428 {
2429 if (Protocol >= PROTOCOL_NT1) {
2430 req->flags2 |= 0x40; /* IS_LONG_NAME */
2431 SSVAL(req->inbuf,smb_flg2,req->flags2);
2432 }
2433
2434 /* Now we must call the relevant NT_TRANS function */
2435 switch(state->call) {
2436 case NT_TRANSACT_CREATE:
2437 {
2438 START_PROFILE(NT_transact_create);
2439 call_nt_transact_create(
2440 conn, req,
2441 &state->setup, state->setup_count,
2442 &state->param, state->total_param,
2443 &state->data, state->total_data,
2444 state->max_data_return);
2445 END_PROFILE(NT_transact_create);
2446 break;
2447 }
2448
2449 case NT_TRANSACT_IOCTL:
2450 {
2451 START_PROFILE(NT_transact_ioctl);
2452 call_nt_transact_ioctl(
2453 conn, req,
2454 &state->setup, state->setup_count,
2455 &state->param, state->total_param,
2456 &state->data, state->total_data,
2457 state->max_data_return);
2458 END_PROFILE(NT_transact_ioctl);
2459 break;
2460 }
2461
2462 case NT_TRANSACT_SET_SECURITY_DESC:
2463 {
2464 START_PROFILE(NT_transact_set_security_desc);
2465 call_nt_transact_set_security_desc(
2466 conn, req,
2467 &state->setup, state->setup_count,
2468 &state->param, state->total_param,
2469 &state->data, state->total_data,
2470 state->max_data_return);
2471 END_PROFILE(NT_transact_set_security_desc);
2472 break;
2473 }
2474
2475 case NT_TRANSACT_NOTIFY_CHANGE:
2476 {
2477 START_PROFILE(NT_transact_notify_change);
2478 call_nt_transact_notify_change(
2479 conn, req,
2480 &state->setup, state->setup_count,
2481 &state->param, state->total_param,
2482 &state->data, state->total_data,
2483 state->max_data_return,
2484 state->max_param_return);
2485 END_PROFILE(NT_transact_notify_change);
2486 break;
2487 }
2488
2489 case NT_TRANSACT_RENAME:
2490 {
2491 START_PROFILE(NT_transact_rename);
2492 call_nt_transact_rename(
2493 conn, req,
2494 &state->setup, state->setup_count,
2495 &state->param, state->total_param,
2496 &state->data, state->total_data,
2497 state->max_data_return);
2498 END_PROFILE(NT_transact_rename);
2499 break;
2500 }
2501
2502 case NT_TRANSACT_QUERY_SECURITY_DESC:
2503 {
2504 START_PROFILE(NT_transact_query_security_desc);
2505 call_nt_transact_query_security_desc(
2506 conn, req,
2507 &state->setup, state->setup_count,
2508 &state->param, state->total_param,
2509 &state->data, state->total_data,
2510 state->max_data_return);
2511 END_PROFILE(NT_transact_query_security_desc);
2512 break;
2513 }
2514
2515 #ifdef HAVE_SYS_QUOTAS
2516 case NT_TRANSACT_GET_USER_QUOTA:
2517 {
2518 START_PROFILE(NT_transact_get_user_quota);
2519 call_nt_transact_get_user_quota(
2520 conn, req,
2521 &state->setup, state->setup_count,
2522 &state->param, state->total_param,
2523 &state->data, state->total_data,
2524 state->max_data_return);
2525 END_PROFILE(NT_transact_get_user_quota);
2526 break;
2527 }
2528
2529 case NT_TRANSACT_SET_USER_QUOTA:
2530 {
2531 START_PROFILE(NT_transact_set_user_quota);
2532 call_nt_transact_set_user_quota(
2533 conn, req,
2534 &state->setup, state->setup_count,
2535 &state->param, state->total_param,
2536 &state->data, state->total_data,
2537 state->max_data_return);
2538 END_PROFILE(NT_transact_set_user_quota);
2539 break;
2540 }
2541 #endif /* HAVE_SYS_QUOTAS */
2542
2543 default:
2544 /* Error in request */
2545 DEBUG(0,("handle_nttrans: Unknown request %d in "
2546 "nttrans call\n", state->call));
2547 reply_doserror(req, ERRSRV, ERRerror);
2548 return;
2549 }
2550 return;
2551 }
2552
2553 /****************************************************************************
2554 Reply to a SMBNTtrans.
2555 ****************************************************************************/
2556
2557 void reply_nttrans(struct smb_request *req)
2558 {
2559 connection_struct *conn = req->conn;
2560 uint32 pscnt;
2561 uint32 psoff;
2562 uint32 dscnt;
2563 uint32 dsoff;
2564 uint16 function_code;
2565 NTSTATUS result;
2566 struct trans_state *state;
2567 int size;
2568
2569 START_PROFILE(SMBnttrans);
2570
2571 if (req->wct < 19) {
2572 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2573 END_PROFILE(SMBnttrans);
2574 return;
2575 }
2576
2577 size = smb_len(req->inbuf) + 4;
2578 pscnt = IVAL(req->inbuf,smb_nt_ParameterCount);
2579 psoff = IVAL(req->inbuf,smb_nt_ParameterOffset);
2580 dscnt = IVAL(req->inbuf,smb_nt_DataCount);
2581 dsoff = IVAL(req->inbuf,smb_nt_DataOffset);
2582 function_code = SVAL(req->inbuf, smb_nt_Function);
2583
2584 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2585 reply_doserror(req, ERRSRV, ERRaccess);
2586 END_PROFILE(SMBnttrans);
2587 return;
2588 }
2589
2590 result = allow_new_trans(conn->pending_trans, req->mid);
2591 if (!NT_STATUS_IS_OK(result)) {
2592 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2593 reply_nterror(req, result);
2594 END_PROFILE(SMBnttrans);
2595 return;
2596 }
2597
2598 if ((state = TALLOC_P(conn->mem_ctx, struct trans_state)) == NULL) {
2599 reply_doserror(req, ERRSRV, ERRaccess);
2600 END_PROFILE(SMBnttrans);
2601 return;
2602 }
2603
2604 state->cmd = SMBnttrans;
2605
2606 state->mid = req->mid;
2607 state->vuid = req->vuid;
2608 state->total_data = IVAL(req->inbuf, smb_nt_TotalDataCount);
2609 state->data = NULL;
2610 state->total_param = IVAL(req->inbuf, smb_nt_TotalParameterCount);
2611 state->param = NULL;
2612 state->max_data_return = IVAL(req->inbuf,smb_nt_MaxDataCount);
2613 state->max_param_return = IVAL(req->inbuf,smb_nt_MaxParameterCount);
2614
2615 /* setup count is in *words* */
2616 state->setup_count = 2*CVAL(req->inbuf,smb_nt_SetupCount);
2617 state->setup = NULL;
2618 state->call = function_code;
2619
2620 /*
2621 * All nttrans messages we handle have smb_wct == 19 +
2622 * state->setup_count. Ensure this is so as a sanity check.
2623 */
2624
2625 if(req->wct != 19 + (state->setup_count/2)) {
2626 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2627 req->wct, 19 + (state->setup_count/2)));
2628 goto bad_param;
2629 }
2630
2631 /* Don't allow more than 128mb for each value. */
2632 if ((state->total_data > (1024*1024*128)) ||
2633 (state->total_param > (1024*1024*128))) {
2634 reply_doserror(req, ERRDOS, ERRnomem);
2635 END_PROFILE(SMBnttrans);
2636 return;
2637 }
2638
2639 if ((dscnt > state->total_data) || (pscnt > state->total_param))
2640 goto bad_param;
2641
2642 if (state->total_data) {
2643 /* Can't use talloc here, the core routines do realloc on the
2644 * params and data. */
2645 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2646 DEBUG(0,("reply_nttrans: data malloc fail for %u "
2647 "bytes !\n", (unsigned int)state->total_data));
2648 TALLOC_FREE(state);
2649 reply_doserror(req, ERRDOS, ERRnomem);
2650 END_PROFILE(SMBnttrans);
2651 return;
2652 }
2653 if ((dsoff+dscnt < dsoff) || (dsoff+dscnt < dscnt))
2654 goto bad_param;
2655 if ((smb_base(req->inbuf)+dsoff+dscnt
2656 > (char *)req->inbuf + size) ||
2657 (smb_base(req->inbuf)+dsoff+dscnt < smb_base(req->inbuf)))
2658 goto bad_param;
2659
2660 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2661 }
2662
2663 if (state->total_param) {
2664 /* Can't use talloc here, the core routines do realloc on the
2665 * params and data. */
2666 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2667 DEBUG(0,("reply_nttrans: param malloc fail for %u "
2668 "bytes !\n", (unsigned int)state->total_param));
2669 SAFE_FREE(state->data);
2670 TALLOC_FREE(state);
2671 reply_doserror(req, ERRDOS, ERRnomem);
2672 END_PROFILE(SMBnttrans);
2673 return;
2674 }
2675 if ((psoff+pscnt < psoff) || (psoff+pscnt < pscnt))
2676 goto bad_param;
2677 if ((smb_base(req->inbuf)+psoff+pscnt
2678 > (char *)req->inbuf + size) ||
2679 (smb_base(req->inbuf)+psoff+pscnt < smb_base(req->inbuf)))
2680 goto bad_param;
2681
2682 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2683 }
2684
2685 state->received_data = dscnt;
2686 state->received_param = pscnt;
2687
2688 if(state->setup_count > 0) {
2689 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2690 state->setup_count));
2691 state->setup = (uint16 *)TALLOC(state, state->setup_count);
2692 if (state->setup == NULL) {
2693 DEBUG(0,("reply_nttrans : Out of memory\n"));
2694 SAFE_FREE(state->data);
2695 SAFE_FREE(state->param);
2696 TALLOC_FREE(state);
2697 reply_doserror(req, ERRDOS, ERRnomem);
2698 END_PROFILE(SMBnttrans);
2699 return;
2700 }
2701
2702 if ((smb_nt_SetupStart + state->setup_count < smb_nt_SetupStart) ||
2703 (smb_nt_SetupStart + state->setup_count < state->setup_count)) {
2704 goto bad_param;
2705 }
2706 if (smb_nt_SetupStart + state->setup_count > size) {
2707 goto bad_param;
2708 }
2709
2710 memcpy( state->setup, &req->inbuf[smb_nt_SetupStart],
2711 state->setup_count);
2712 dump_data(10, (uint8 *)state->setup, state->setup_count);
2713 }
2714
2715 if ((state->received_data == state->total_data) &&
2716 (state->received_param == state->total_param)) {
2717 handle_nttrans(conn, state, req);
2718 SAFE_FREE(state->param);
2719 SAFE_FREE(state->data);
2720 TALLOC_FREE(state);
2721 END_PROFILE(SMBnttrans);
2722 return;
2723 }
2724
2725 DLIST_ADD(conn->pending_trans, state);
2726
2727 /* We need to send an interim response then receive the rest
2728 of the parameter/data bytes */
2729 reply_outbuf(req, 0, 0);
2730 show_msg((char *)req->outbuf);
2731 END_PROFILE(SMBnttrans);
2732 return;
2733
2734 bad_param:
2735
2736 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2737 SAFE_FREE(state->data);
2738 SAFE_FREE(state->param);
2739 TALLOC_FREE(state);
2740 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2741 END_PROFILE(SMBnttrans);
2742 return;
2743 }
2744
2745 /****************************************************************************
2746 Reply to a SMBnttranss
2747 ****************************************************************************/
2748
2749 void reply_nttranss(struct smb_request *req)
2750 {
2751 connection_struct *conn = req->conn;
2752 unsigned int pcnt,poff,dcnt,doff,pdisp,ddisp;
2753 struct trans_state *state;
2754
2755 int size;
2756
2757 START_PROFILE(SMBnttranss);
2758
2759 show_msg((char *)req->inbuf);
2760
2761 if (req->wct < 18) {
2762 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2763 END_PROFILE(SMBnttranss);
2764 return;
2765 }
2766
2767 for (state = conn->pending_trans; state != NULL;
2768 state = state->next) {
2769 if (state->mid == req->mid) {
2770 break;
2771 }
2772 }
2773
2774 if ((state == NULL) || (state->cmd != SMBnttrans)) {
2775 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2776 END_PROFILE(SMBnttranss);
2777 return;
2778 }
2779
2780 /* Revise state->total_param and state->total_data in case they have
2781 changed downwards */
2782 if (IVAL(req->inbuf, smb_nts_TotalParameterCount)
2783 < state->total_param) {
2784 state->total_param = IVAL(req->inbuf,
2785 smb_nts_TotalParameterCount);
2786 }
2787 if (IVAL(req->inbuf, smb_nts_TotalDataCount) < state->total_data) {
2788 state->total_data = IVAL(req->inbuf, smb_nts_TotalDataCount);
2789 }
2790
2791 size = smb_len(req->inbuf) + 4;
2792
2793 pcnt = IVAL(req->inbuf,smb_nts_ParameterCount);
2794 poff = IVAL(req->inbuf, smb_nts_ParameterOffset);
2795 pdisp = IVAL(req->inbuf, smb_nts_ParameterDisplacement);
2796
2797 dcnt = IVAL(req->inbuf, smb_nts_DataCount);
2798 ddisp = IVAL(req->inbuf, smb_nts_DataDisplacement);
2799 doff = IVAL(req->inbuf, smb_nts_DataOffset);
2800
2801 state->received_param += pcnt;
2802 state->received_data += dcnt;
2803
2804 if ((state->received_data > state->total_data) ||
2805 (state->received_param > state->total_param))
2806 goto bad_param;
2807
2808 if (pcnt) {
2809 if (pdisp+pcnt > state->total_param)
2810 goto bad_param;
2811 if ((pdisp+pcnt < pdisp) || (pdisp+pcnt < pcnt))
2812 goto bad_param;
2813 if (pdisp > state->total_param)
2814 goto bad_param;
2815 if ((smb_base(req->inbuf) + poff + pcnt
2816 > (char *)req->inbuf + size) ||
2817 (smb_base(req->inbuf) + poff + pcnt
2818 < smb_base(req->inbuf)))
2819 goto bad_param;
2820 if (state->param + pdisp < state->param)
2821 goto bad_param;
2822
2823 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,
2824 pcnt);
2825 }
2826
2827 if (dcnt) {
2828 if (ddisp+dcnt > state->total_data)
2829 goto bad_param;
2830 if ((ddisp+dcnt < ddisp) || (ddisp+dcnt < dcnt))
2831 goto bad_param;
2832 if (ddisp > state->total_data)
2833 goto bad_param;
2834 if ((smb_base(req->inbuf) + doff + dcnt
2835 > (char *)req->inbuf + size) ||
2836 (smb_base(req->inbuf) + doff + dcnt
2837 < smb_base(req->inbuf)))
2838 goto bad_param;
2839 if (state->data + ddisp < state->data)
2840 goto bad_param;
2841
2842 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,
2843 dcnt);
2844 }
2845
2846 if ((state->received_param < state->total_param) ||
2847 (state->received_data < state->total_data)) {
2848 END_PROFILE(SMBnttranss);
2849 return;
2850 }
2851
2852 /*
2853 * construct_reply_common will copy smb_com from inbuf to
2854 * outbuf. SMBnttranss is wrong here.
2855 */
2856 SCVAL(req->inbuf,smb_com,SMBnttrans);
2857
2858 handle_nttrans(conn, state, req);
2859
2860 DLIST_REMOVE(conn->pending_trans, state);
2861 SAFE_FREE(state->data);
2862 SAFE_FREE(state->param);
2863 TALLOC_FREE(state);
2864 END_PROFILE(SMBnttranss);
2865 return;
2866
2867 bad_param:
2868
2869 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
2870 DLIST_REMOVE(conn->pending_trans, state);
2871 SAFE_FREE(state->data);
2872 SAFE_FREE(state->param);
2873 TALLOC_FREE(state);
2874 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2875 END_PROFILE(SMBnttranss);
2876 return;
2877 }