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Remove the "current_user" arg from fsp_belongs_conn
[Samba.git] / source / smbd / nttrans.c
blob8e55d6b8e9834ec1c98ebe542d3b6ac78c93fe7a
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 }
502 reply_doserror(req, ERRDOS, ERRnoaccess);
503 END_PROFILE(SMBntcreateX);
504 return;
505 }
506
507 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
508 if (oplock_request) {
509 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
510 ? BATCH_OPLOCK : 0;
511 }
512
513 status = create_file(conn, req, root_dir_fid, fname,
514 access_mask, share_access, create_disposition,
515 create_options, file_attributes, oplock_request,
516 allocation_size, NULL, NULL, &fsp, &info, &sbuf);
517
518 if (!NT_STATUS_IS_OK(status)) {
519 if (open_was_deferred(req->mid)) {
520 /* We have re-scheduled this call, no error. */
521 END_PROFILE(SMBntcreateX);
522 return;
523 }
524 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_COLLISION)) {
525 reply_botherror(req, status, ERRDOS, ERRfilexists);
526 }
527 else {
528 reply_nterror(req, status);
529 }
530 END_PROFILE(SMBntcreateX);
531 return;
532 }
533
534 /*
535 * If the caller set the extended oplock request bit
536 * and we granted one (by whatever means) - set the
537 * correct bit for extended oplock reply.
538 */
539
540 if (oplock_request &&
541 (lp_fake_oplocks(SNUM(conn))
542 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
543
544 /*
545 * Exclusive oplock granted
546 */
547
548 if (flags & REQUEST_BATCH_OPLOCK) {
549 oplock_granted = BATCH_OPLOCK_RETURN;
550 } else {
551 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
552 }
553 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
554 oplock_granted = LEVEL_II_OPLOCK_RETURN;
555 } else {
556 oplock_granted = NO_OPLOCK_RETURN;
557 }
558
559 file_len = sbuf.st_size;
560 fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
561 if (fattr == 0) {
562 fattr = FILE_ATTRIBUTE_NORMAL;
563 }
564
565 if (flags & EXTENDED_RESPONSE_REQUIRED) {
566 /* This is very strange. We
567 * return 50 words, but only set
568 * the wcnt to 42 ? It's definately
569 * what happens on the wire....
570 */
571 reply_outbuf(req, 50, 0);
572 SCVAL(req->outbuf,smb_wct,42);
573 } else {
574 reply_outbuf(req, 34, 0);
575 }
576
577 p = (char *)req->outbuf + smb_vwv2;
578
579 SCVAL(p, 0, oplock_granted);
580
581 p++;
582 SSVAL(p,0,fsp->fnum);
583 p += 2;
584 if ((create_disposition == FILE_SUPERSEDE)
585 && (info == FILE_WAS_OVERWRITTEN)) {
586 SIVAL(p,0,FILE_WAS_SUPERSEDED);
587 } else {
588 SIVAL(p,0,info);
589 }
590 p += 4;
591
592 /* Create time. */
593 c_timespec = get_create_timespec(
594 &sbuf,lp_fake_dir_create_times(SNUM(conn)));
595 a_timespec = get_atimespec(&sbuf);
596 m_timespec = get_mtimespec(&sbuf);
597
598 if (lp_dos_filetime_resolution(SNUM(conn))) {
599 dos_filetime_timespec(&c_timespec);
600 dos_filetime_timespec(&a_timespec);
601 dos_filetime_timespec(&m_timespec);
602 }
603
604 put_long_date_timespec(p, c_timespec); /* create time. */
605 p += 8;
606 put_long_date_timespec(p, a_timespec); /* access time */
607 p += 8;
608 put_long_date_timespec(p, m_timespec); /* write time */
609 p += 8;
610 put_long_date_timespec(p, m_timespec); /* change time */
611 p += 8;
612 SIVAL(p,0,fattr); /* File Attributes. */
613 p += 4;
614 SOFF_T(p, 0, get_allocation_size(conn,fsp,&sbuf));
615 p += 8;
616 SOFF_T(p,0,file_len);
617 p += 8;
618 if (flags & EXTENDED_RESPONSE_REQUIRED) {
619 SSVAL(p,2,0x7);
620 }
621 p += 4;
622 SCVAL(p,0,fsp->is_directory ? 1 : 0);
623
624 if (flags & EXTENDED_RESPONSE_REQUIRED) {
625 uint32 perms = 0;
626 p += 25;
627 if (fsp->is_directory
628 || can_write_to_file(conn, fsp->fsp_name, &sbuf)) {
629 perms = FILE_GENERIC_ALL;
630 } else {
631 perms = FILE_GENERIC_READ|FILE_EXECUTE;
632 }
633 SIVAL(p,0,perms);
634 }
635
636 DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
637 fsp->fnum, fsp->fsp_name));
638
639 chain_reply(req);
640 END_PROFILE(SMBntcreateX);
641 return;
642 }
643
644 /****************************************************************************
645 Reply to a NT_TRANSACT_CREATE call to open a pipe.
646 ****************************************************************************/
647
648 static void do_nt_transact_create_pipe(connection_struct *conn,
649 struct smb_request *req,
650 uint16 **ppsetup, uint32 setup_count,
651 char **ppparams, uint32 parameter_count,
652 char **ppdata, uint32 data_count)
653 {
654 char *fname = NULL;
655 char *params = *ppparams;
656 int pnum = -1;
657 char *p = NULL;
658 NTSTATUS status;
659 size_t param_len;
660 uint32 flags;
661 TALLOC_CTX *ctx = talloc_tos();
662
663 /*
664 * Ensure minimum number of parameters sent.
665 */
666
667 if(parameter_count < 54) {
668 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
669 reply_doserror(req, ERRDOS, ERRnoaccess);
670 return;
671 }
672
673 flags = IVAL(params,0);
674
675 srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
676 parameter_count-53, STR_TERMINATE,
677 &status);
678 if (!NT_STATUS_IS_OK(status)) {
679 reply_nterror(req, status);
680 return;
681 }
682
683 nt_open_pipe(fname, conn, req, &pnum);
684
685 if (req->outbuf) {
686 /* Error return */
687 return;
688 }
689
690 /* Realloc the size of parameters and data we will return */
691 if (flags & EXTENDED_RESPONSE_REQUIRED) {
692 /* Extended response is 32 more byyes. */
693 param_len = 101;
694 } else {
695 param_len = 69;
696 }
697 params = nttrans_realloc(ppparams, param_len);
698 if(params == NULL) {
699 reply_doserror(req, ERRDOS, ERRnomem);
700 return;
701 }
702
703 p = params;
704 SCVAL(p,0,NO_OPLOCK_RETURN);
705
706 p += 2;
707 SSVAL(p,0,pnum);
708 p += 2;
709 SIVAL(p,0,FILE_WAS_OPENED);
710 p += 8;
711
712 p += 32;
713 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
714 p += 20;
715 /* File type. */
716 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
717 /* Device state. */
718 SSVAL(p,2, 0x5FF); /* ? */
719 p += 4;
720
721 if (flags & EXTENDED_RESPONSE_REQUIRED) {
722 p += 25;
723 SIVAL(p,0,FILE_GENERIC_ALL);
724 /*
725 * For pipes W2K3 seems to return
726 * 0x12019B next.
727 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
728 */
729 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
730 }
731
732 DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
733
734 /* Send the required number of replies */
735 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
736
737 return;
738 }
739
740 /****************************************************************************
741 Internal fn to set security descriptors.
742 ****************************************************************************/
743
744 static NTSTATUS set_sd(files_struct *fsp, uint8 *data, uint32 sd_len,
745 uint32 security_info_sent)
746 {
747 SEC_DESC *psd = NULL;
748 NTSTATUS status;
749
750 if (sd_len == 0 || !lp_nt_acl_support(SNUM(fsp->conn))) {
751 return NT_STATUS_OK;
752 }
753
754 status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
755
756 if (!NT_STATUS_IS_OK(status)) {
757 return status;
758 }
759
760 if (psd->owner_sid==0) {
761 security_info_sent &= ~OWNER_SECURITY_INFORMATION;
762 }
763 if (psd->group_sid==0) {
764 security_info_sent &= ~GROUP_SECURITY_INFORMATION;
765 }
766 if (psd->sacl==0) {
767 security_info_sent &= ~SACL_SECURITY_INFORMATION;
768 }
769 if (psd->dacl==0) {
770 security_info_sent &= ~DACL_SECURITY_INFORMATION;
771 }
772
773 status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
774
775 TALLOC_FREE(psd);
776
777 return status;
778 }
779
780 /****************************************************************************
781 Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
782 ****************************************************************************/
783
784 static struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
785 {
786 struct ea_list *ea_list_head = NULL;
787 size_t offset = 0;
788
789 if (data_size < 4) {
790 return NULL;
791 }
792
793 while (offset + 4 <= data_size) {
794 size_t next_offset = IVAL(pdata,offset);
795 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
796
797 if (!eal) {
798 return NULL;
799 }
800
801 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
802 if (next_offset == 0) {
803 break;
804 }
805 offset += next_offset;
806 }
807
808 return ea_list_head;
809 }
810
811 /****************************************************************************
812 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
813 ****************************************************************************/
814
815 static void call_nt_transact_create(connection_struct *conn,
816 struct smb_request *req,
817 uint16 **ppsetup, uint32 setup_count,
818 char **ppparams, uint32 parameter_count,
819 char **ppdata, uint32 data_count,
820 uint32 max_data_count)
821 {
822 char *fname = NULL;
823 char *params = *ppparams;
824 char *data = *ppdata;
825 /* Breakout the oplock request bits so we can set the reply bits separately. */
826 uint32 fattr=0;
827 SMB_OFF_T file_len = 0;
828 SMB_STRUCT_STAT sbuf;
829 int info = 0;
830 files_struct *fsp = NULL;
831 char *p = NULL;
832 uint32 flags;
833 uint32 access_mask;
834 uint32 file_attributes;
835 uint32 share_access;
836 uint32 create_disposition;
837 uint32 create_options;
838 uint32 sd_len;
839 struct security_descriptor *sd = NULL;
840 uint32 ea_len;
841 uint16 root_dir_fid;
842 struct timespec c_timespec;
843 struct timespec a_timespec;
844 struct timespec m_timespec;
845 struct ea_list *ea_list = NULL;
846 NTSTATUS status;
847 size_t param_len;
848 SMB_BIG_UINT allocation_size;
849 int oplock_request;
850 uint8_t oplock_granted;
851 TALLOC_CTX *ctx = talloc_tos();
852
853 DEBUG(5,("call_nt_transact_create\n"));
854
855 /*
856 * If it's an IPC, use the pipe handler.
857 */
858
859 if (IS_IPC(conn)) {
860 if (lp_nt_pipe_support()) {
861 do_nt_transact_create_pipe(
862 conn, req,
863 ppsetup, setup_count,
864 ppparams, parameter_count,
865 ppdata, data_count);
866 return;
867 }
868 reply_doserror(req, ERRDOS, ERRnoaccess);
869 return;
870 }
871
872 /*
873 * Ensure minimum number of parameters sent.
874 */
875
876 if(parameter_count < 54) {
877 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
878 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
879 return;
880 }
881
882 flags = IVAL(params,0);
883 access_mask = IVAL(params,8);
884 file_attributes = IVAL(params,20);
885 share_access = IVAL(params,24);
886 create_disposition = IVAL(params,28);
887 create_options = IVAL(params,32);
888 sd_len = IVAL(params,36);
889 ea_len = IVAL(params,40);
890 root_dir_fid = (uint16)IVAL(params,4);
891 allocation_size = (SMB_BIG_UINT)IVAL(params,12);
892 #ifdef LARGE_SMB_OFF_T
893 allocation_size |= (((SMB_BIG_UINT)IVAL(params,16)) << 32);
894 #endif
895
896 /* Ensure the data_len is correct for the sd and ea values given. */
897 if ((ea_len + sd_len > data_count)
898 || (ea_len > data_count) || (sd_len > data_count)
899 || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
900 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
901 "%u, data_count = %u\n", (unsigned int)ea_len,
902 (unsigned int)sd_len, (unsigned int)data_count));
903 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
904 return;
905 }
906
907 if (sd_len) {
908 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
909 sd_len));
910
911 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
912 &sd);
913 if (!NT_STATUS_IS_OK(status)) {
914 DEBUG(10, ("call_nt_transact_create: "
915 "unmarshall_sec_desc failed: %s\n",
916 nt_errstr(status)));
917 reply_nterror(req, status);
918 return;
919 }
920 }
921
922 if (ea_len) {
923 if (!lp_ea_support(SNUM(conn))) {
924 DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
925 "EA's not supported.\n",
926 (unsigned int)ea_len));
927 reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
928 return;
929 }
930
931 if (ea_len < 10) {
932 DEBUG(10,("call_nt_transact_create - ea_len = %u - "
933 "too small (should be more than 10)\n",
934 (unsigned int)ea_len ));
935 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
936 return;
937 }
938
939 /* We have already checked that ea_len <= data_count here. */
940 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
941 ea_len);
942 if (ea_list == NULL) {
943 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
944 return;
945 }
946 }
947
948 srvstr_get_path(ctx, params, req->flags2, &fname,
949 params+53, parameter_count-53,
950 STR_TERMINATE, &status);
951 if (!NT_STATUS_IS_OK(status)) {
952 reply_nterror(req, status);
953 return;
954 }
955
956 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
957 if (oplock_request) {
958 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
959 ? BATCH_OPLOCK : 0;
960 }
961
962 status = create_file(conn, req, root_dir_fid, fname,
963 access_mask, share_access, create_disposition,
964 create_options, file_attributes, oplock_request,
965 allocation_size, sd, ea_list, &fsp, &info, &sbuf);
966
967 if(!NT_STATUS_IS_OK(status)) {
968 if (open_was_deferred(req->mid)) {
969 /* We have re-scheduled this call, no error. */
970 return;
971 }
972 reply_openerror(req, status);
973 return;
974 }
975
976 /*
977 * If the caller set the extended oplock request bit
978 * and we granted one (by whatever means) - set the
979 * correct bit for extended oplock reply.
980 */
981
982 if (oplock_request &&
983 (lp_fake_oplocks(SNUM(conn))
984 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
985
986 /*
987 * Exclusive oplock granted
988 */
989
990 if (flags & REQUEST_BATCH_OPLOCK) {
991 oplock_granted = BATCH_OPLOCK_RETURN;
992 } else {
993 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
994 }
995 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
996 oplock_granted = LEVEL_II_OPLOCK_RETURN;
997 } else {
998 oplock_granted = NO_OPLOCK_RETURN;
999 }
1000
1001 file_len = sbuf.st_size;
1002 fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
1003 if (fattr == 0) {
1004 fattr = FILE_ATTRIBUTE_NORMAL;
1005 }
1006
1007 /* Realloc the size of parameters and data we will return */
1008 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1009 /* Extended response is 32 more byyes. */
1010 param_len = 101;
1011 } else {
1012 param_len = 69;
1013 }
1014 params = nttrans_realloc(ppparams, param_len);
1015 if(params == NULL) {
1016 reply_doserror(req, ERRDOS, ERRnomem);
1017 return;
1018 }
1019
1020 p = params;
1021 SCVAL(p, 0, oplock_granted);
1022
1023 p += 2;
1024 SSVAL(p,0,fsp->fnum);
1025 p += 2;
1026 if ((create_disposition == FILE_SUPERSEDE)
1027 && (info == FILE_WAS_OVERWRITTEN)) {
1028 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1029 } else {
1030 SIVAL(p,0,info);
1031 }
1032 p += 8;
1033
1034 /* Create time. */
1035 c_timespec = get_create_timespec(
1036 &sbuf,lp_fake_dir_create_times(SNUM(conn)));
1037 a_timespec = get_atimespec(&sbuf);
1038 m_timespec = get_mtimespec(&sbuf);
1039
1040 if (lp_dos_filetime_resolution(SNUM(conn))) {
1041 dos_filetime_timespec(&c_timespec);
1042 dos_filetime_timespec(&a_timespec);
1043 dos_filetime_timespec(&m_timespec);
1044 }
1045
1046 put_long_date_timespec(p, c_timespec); /* create time. */
1047 p += 8;
1048 put_long_date_timespec(p, a_timespec); /* access time */
1049 p += 8;
1050 put_long_date_timespec(p, m_timespec); /* write time */
1051 p += 8;
1052 put_long_date_timespec(p, m_timespec); /* change time */
1053 p += 8;
1054 SIVAL(p,0,fattr); /* File Attributes. */
1055 p += 4;
1056 SOFF_T(p, 0, get_allocation_size(conn,fsp,&sbuf));
1057 p += 8;
1058 SOFF_T(p,0,file_len);
1059 p += 8;
1060 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1061 SSVAL(p,2,0x7);
1062 }
1063 p += 4;
1064 SCVAL(p,0,fsp->is_directory ? 1 : 0);
1065
1066 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1067 uint32 perms = 0;
1068 p += 25;
1069 if (fsp->is_directory
1070 || can_write_to_file(conn, fsp->fsp_name, &sbuf)) {
1071 perms = FILE_GENERIC_ALL;
1072 } else {
1073 perms = FILE_GENERIC_READ|FILE_EXECUTE;
1074 }
1075 SIVAL(p,0,perms);
1076 }
1077
1078 DEBUG(5,("call_nt_transact_create: open name = %s\n", fsp->fsp_name));
1079
1080 /* Send the required number of replies */
1081 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1082
1083 return;
1084 }
1085
1086 /****************************************************************************
1087 Reply to a NT CANCEL request.
1088 conn POINTER CAN BE NULL HERE !
1089 ****************************************************************************/
1090
1091 void reply_ntcancel(struct smb_request *req)
1092 {
1093 /*
1094 * Go through and cancel any pending change notifies.
1095 */
1096
1097 START_PROFILE(SMBntcancel);
1098 remove_pending_change_notify_requests_by_mid(req->mid);
1099 remove_pending_lock_requests_by_mid(req->mid);
1100 srv_cancel_sign_response(req->mid);
1101
1102 DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", req->mid));
1103
1104 END_PROFILE(SMBntcancel);
1105 return;
1106 }
1107
1108 /****************************************************************************
1109 Copy a file.
1110 ****************************************************************************/
1111
1112 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1113 connection_struct *conn,
1114 struct smb_request *req,
1115 const char *oldname_in,
1116 const char *newname_in,
1117 uint32 attrs)
1118 {
1119 SMB_STRUCT_STAT sbuf1, sbuf2;
1120 char *oldname = NULL;
1121 char *newname = NULL;
1122 char *last_component_oldname = NULL;
1123 char *last_component_newname = NULL;
1124 files_struct *fsp1,*fsp2;
1125 uint32 fattr;
1126 int info;
1127 SMB_OFF_T ret=-1;
1128 NTSTATUS status = NT_STATUS_OK;
1129
1130 ZERO_STRUCT(sbuf1);
1131 ZERO_STRUCT(sbuf2);
1132
1133 if (!CAN_WRITE(conn)) {
1134 return NT_STATUS_MEDIA_WRITE_PROTECTED;
1135 }
1136
1137 status = unix_convert(ctx, conn, oldname_in, False, &oldname,
1138 &last_component_oldname, &sbuf1);
1139 if (!NT_STATUS_IS_OK(status)) {
1140 return status;
1141 }
1142
1143 status = check_name(conn, oldname);
1144 if (!NT_STATUS_IS_OK(status)) {
1145 return status;
1146 }
1147
1148 /* Source must already exist. */
1149 if (!VALID_STAT(sbuf1)) {
1150 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
1151 }
1152 /* Ensure attributes match. */
1153 fattr = dos_mode(conn,oldname,&sbuf1);
1154 if ((fattr & ~attrs) & (aHIDDEN | aSYSTEM)) {
1155 return NT_STATUS_NO_SUCH_FILE;
1156 }
1157
1158 status = unix_convert(ctx, conn, newname_in, False, &newname,
1159 &last_component_newname, &sbuf2);
1160 if (!NT_STATUS_IS_OK(status)) {
1161 return status;
1162 }
1163
1164 status = check_name(conn, newname);
1165 if (!NT_STATUS_IS_OK(status)) {
1166 return status;
1167 }
1168
1169 /* Disallow if newname already exists. */
1170 if (VALID_STAT(sbuf2)) {
1171 return NT_STATUS_OBJECT_NAME_COLLISION;
1172 }
1173
1174 /* No links from a directory. */
1175 if (S_ISDIR(sbuf1.st_mode)) {
1176 return NT_STATUS_FILE_IS_A_DIRECTORY;
1177 }
1178
1179 /* Ensure this is within the share. */
1180 status = check_reduced_name(conn, oldname);
1181 if (!NT_STATUS_IS_OK(status)) {
1182 return status;
1183 }
1184
1185 DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1186 oldname, newname));
1187
1188 status = open_file_ntcreate(conn, req, oldname, &sbuf1,
1189 FILE_READ_DATA, /* Read-only. */
1190 FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
1191 FILE_OPEN,
1192 0, /* No create options. */
1193 FILE_ATTRIBUTE_NORMAL,
1194 NO_OPLOCK,
1195 &info, &fsp1);
1196
1197 if (!NT_STATUS_IS_OK(status)) {
1198 return status;
1199 }
1200
1201 status = open_file_ntcreate(conn, req, newname, &sbuf2,
1202 FILE_WRITE_DATA, /* Read-only. */
1203 FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
1204 FILE_CREATE,
1205 0, /* No create options. */
1206 fattr,
1207 NO_OPLOCK,
1208 &info, &fsp2);
1209
1210 if (!NT_STATUS_IS_OK(status)) {
1211 close_file(fsp1,ERROR_CLOSE);
1212 return status;
1213 }
1214
1215 if (sbuf1.st_size) {
1216 ret = vfs_transfer_file(fsp1, fsp2, sbuf1.st_size);
1217 }
1218
1219 /*
1220 * As we are opening fsp1 read-only we only expect
1221 * an error on close on fsp2 if we are out of space.
1222 * Thus we don't look at the error return from the
1223 * close of fsp1.
1224 */
1225 close_file(fsp1,NORMAL_CLOSE);
1226
1227 /* Ensure the modtime is set correctly on the destination file. */
1228 set_close_write_time(fsp2, get_mtimespec(&sbuf1));
1229
1230 status = close_file(fsp2,NORMAL_CLOSE);
1231
1232 /* Grrr. We have to do this as open_file_ntcreate adds aARCH when it
1233 creates the file. This isn't the correct thing to do in the copy
1234 case. JRA */
1235 file_set_dosmode(conn, newname, fattr, &sbuf2,
1236 parent_dirname(newname),false);
1237
1238 if (ret < (SMB_OFF_T)sbuf1.st_size) {
1239 return NT_STATUS_DISK_FULL;
1240 }
1241
1242 if (!NT_STATUS_IS_OK(status)) {
1243 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1244 nt_errstr(status), oldname, newname));
1245 }
1246 return status;
1247 }
1248
1249 /****************************************************************************
1250 Reply to a NT rename request.
1251 ****************************************************************************/
1252
1253 void reply_ntrename(struct smb_request *req)
1254 {
1255 connection_struct *conn = req->conn;
1256 char *oldname = NULL;
1257 char *newname = NULL;
1258 char *p;
1259 NTSTATUS status;
1260 bool src_has_wcard = False;
1261 bool dest_has_wcard = False;
1262 uint32 attrs;
1263 uint16 rename_type;
1264 TALLOC_CTX *ctx = talloc_tos();
1265
1266 START_PROFILE(SMBntrename);
1267
1268 if (req->wct < 4) {
1269 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1270 END_PROFILE(SMBntrename);
1271 return;
1272 }
1273
1274 attrs = SVAL(req->inbuf,smb_vwv0);
1275 rename_type = SVAL(req->inbuf,smb_vwv1);
1276
1277 p = smb_buf(req->inbuf) + 1;
1278 p += srvstr_get_path_wcard(ctx, (char *)req->inbuf, req->flags2, &oldname, p,
1279 0, STR_TERMINATE, &status,
1280 &src_has_wcard);
1281 if (!NT_STATUS_IS_OK(status)) {
1282 reply_nterror(req, status);
1283 END_PROFILE(SMBntrename);
1284 return;
1285 }
1286
1287 if( is_ntfs_stream_name(oldname)) {
1288 /* Can't rename a stream. */
1289 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1290 END_PROFILE(SMBntrename);
1291 return;
1292 }
1293
1294 if (ms_has_wild(oldname)) {
1295 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1296 END_PROFILE(SMBntrename);
1297 return;
1298 }
1299
1300 p++;
1301 p += srvstr_get_path_wcard(ctx, (char *)req->inbuf, req->flags2, &newname, p,
1302 0, STR_TERMINATE, &status,
1303 &dest_has_wcard);
1304 if (!NT_STATUS_IS_OK(status)) {
1305 reply_nterror(req, status);
1306 END_PROFILE(SMBntrename);
1307 return;
1308 }
1309
1310 status = resolve_dfspath(ctx, conn,
1311 req->flags2 & FLAGS2_DFS_PATHNAMES,
1312 oldname,
1313 &oldname);
1314 if (!NT_STATUS_IS_OK(status)) {
1315 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1316 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1317 ERRSRV, ERRbadpath);
1318 END_PROFILE(SMBntrename);
1319 return;
1320 }
1321 reply_nterror(req, status);
1322 END_PROFILE(SMBntrename);
1323 return;
1324 }
1325
1326 status = resolve_dfspath(ctx, conn,
1327 req->flags2 & FLAGS2_DFS_PATHNAMES,
1328 newname,
1329 &newname);
1330 if (!NT_STATUS_IS_OK(status)) {
1331 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1332 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1333 ERRSRV, ERRbadpath);
1334 END_PROFILE(SMBntrename);
1335 return;
1336 }
1337 reply_nterror(req, status);
1338 END_PROFILE(SMBntrename);
1339 return;
1340 }
1341
1342 DEBUG(3,("reply_ntrename : %s -> %s\n",oldname,newname));
1343
1344 switch(rename_type) {
1345 case RENAME_FLAG_RENAME:
1346 status = rename_internals(ctx, conn, req, oldname,
1347 newname, attrs, False, src_has_wcard,
1348 dest_has_wcard, DELETE_ACCESS);
1349 break;
1350 case RENAME_FLAG_HARD_LINK:
1351 if (src_has_wcard || dest_has_wcard) {
1352 /* No wildcards. */
1353 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1354 } else {
1355 status = hardlink_internals(ctx,
1356 conn,
1357 oldname,
1358 newname);
1359 }
1360 break;
1361 case RENAME_FLAG_COPY:
1362 if (src_has_wcard || dest_has_wcard) {
1363 /* No wildcards. */
1364 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1365 } else {
1366 status = copy_internals(ctx, conn, req, oldname,
1367 newname, attrs);
1368 }
1369 break;
1370 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1371 status = NT_STATUS_INVALID_PARAMETER;
1372 break;
1373 default:
1374 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1375 break;
1376 }
1377
1378 if (!NT_STATUS_IS_OK(status)) {
1379 if (open_was_deferred(req->mid)) {
1380 /* We have re-scheduled this call. */
1381 END_PROFILE(SMBntrename);
1382 return;
1383 }
1384
1385 reply_nterror(req, status);
1386 END_PROFILE(SMBntrename);
1387 return;
1388 }
1389
1390 reply_outbuf(req, 0, 0);
1391
1392 END_PROFILE(SMBntrename);
1393 return;
1394 }
1395
1396 /****************************************************************************
1397 Reply to a notify change - queue the request and
1398 don't allow a directory to be opened.
1399 ****************************************************************************/
1400
1401 static void call_nt_transact_notify_change(connection_struct *conn,
1402 struct smb_request *req,
1403 uint16 **ppsetup,
1404 uint32 setup_count,
1405 char **ppparams,
1406 uint32 parameter_count,
1407 char **ppdata, uint32 data_count,
1408 uint32 max_data_count,
1409 uint32 max_param_count)
1410 {
1411 uint16 *setup = *ppsetup;
1412 files_struct *fsp;
1413 uint32 filter;
1414 NTSTATUS status;
1415 bool recursive;
1416
1417 if(setup_count < 6) {
1418 reply_doserror(req, ERRDOS, ERRbadfunc);
1419 return;
1420 }
1421
1422 fsp = file_fsp(SVAL(setup,4));
1423 filter = IVAL(setup, 0);
1424 recursive = (SVAL(setup, 6) != 0) ? True : False;
1425
1426 DEBUG(3,("call_nt_transact_notify_change\n"));
1427
1428 if(!fsp) {
1429 reply_doserror(req, ERRDOS, ERRbadfid);
1430 return;
1431 }
1432
1433 {
1434 char *filter_string;
1435
1436 if (!(filter_string = notify_filter_string(NULL, filter))) {
1437 reply_nterror(req,NT_STATUS_NO_MEMORY);
1438 return;
1439 }
1440
1441 DEBUG(3,("call_nt_transact_notify_change: notify change "
1442 "called on %s, filter = %s, recursive = %d\n",
1443 fsp->fsp_name, filter_string, recursive));
1444
1445 TALLOC_FREE(filter_string);
1446 }
1447
1448 if((!fsp->is_directory) || (conn != fsp->conn)) {
1449 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1450 return;
1451 }
1452
1453 if (fsp->notify == NULL) {
1454
1455 status = change_notify_create(fsp, filter, recursive);
1456
1457 if (!NT_STATUS_IS_OK(status)) {
1458 DEBUG(10, ("change_notify_create returned %s\n",
1459 nt_errstr(status)));
1460 reply_nterror(req, status);
1461 return;
1462 }
1463 }
1464
1465 if (fsp->notify->num_changes != 0) {
1466
1467 /*
1468 * We've got changes pending, respond immediately
1469 */
1470
1471 /*
1472 * TODO: write a torture test to check the filtering behaviour
1473 * here.
1474 */
1475
1476 change_notify_reply(fsp->conn, req->inbuf, max_param_count, fsp->notify);
1477
1478 /*
1479 * change_notify_reply() above has independently sent its
1480 * results
1481 */
1482 return;
1483 }
1484
1485 /*
1486 * No changes pending, queue the request
1487 */
1488
1489 status = change_notify_add_request(req,
1490 max_param_count,
1491 filter,
1492 recursive, fsp);
1493 if (!NT_STATUS_IS_OK(status)) {
1494 reply_nterror(req, status);
1495 }
1496 return;
1497 }
1498
1499 /****************************************************************************
1500 Reply to an NT transact rename command.
1501 ****************************************************************************/
1502
1503 static void call_nt_transact_rename(connection_struct *conn,
1504 struct smb_request *req,
1505 uint16 **ppsetup, uint32 setup_count,
1506 char **ppparams, uint32 parameter_count,
1507 char **ppdata, uint32 data_count,
1508 uint32 max_data_count)
1509 {
1510 char *params = *ppparams;
1511 char *new_name = NULL;
1512 files_struct *fsp = NULL;
1513 bool dest_has_wcard = False;
1514 NTSTATUS status;
1515 TALLOC_CTX *ctx = talloc_tos();
1516
1517 if(parameter_count < 5) {
1518 reply_doserror(req, ERRDOS, ERRbadfunc);
1519 return;
1520 }
1521
1522 fsp = file_fsp(SVAL(params, 0));
1523 if (!check_fsp(conn, req, fsp)) {
1524 return;
1525 }
1526 srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1527 parameter_count - 4,
1528 STR_TERMINATE, &status, &dest_has_wcard);
1529 if (!NT_STATUS_IS_OK(status)) {
1530 reply_nterror(req, status);
1531 return;
1532 }
1533
1534 /*
1535 * W2K3 ignores this request as the RAW-RENAME test
1536 * demonstrates, so we do.
1537 */
1538 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1539
1540 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1541 fsp->fsp_name, new_name));
1542
1543 return;
1544 }
1545
1546 /******************************************************************************
1547 Fake up a completely empty SD.
1548 *******************************************************************************/
1549
1550 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
1551 {
1552 size_t sd_size;
1553
1554 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1555 if(!*ppsd) {
1556 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1557 return NT_STATUS_NO_MEMORY;
1558 }
1559
1560 return NT_STATUS_OK;
1561 }
1562
1563 /****************************************************************************
1564 Reply to query a security descriptor.
1565 ****************************************************************************/
1566
1567 static void call_nt_transact_query_security_desc(connection_struct *conn,
1568 struct smb_request *req,
1569 uint16 **ppsetup,
1570 uint32 setup_count,
1571 char **ppparams,
1572 uint32 parameter_count,
1573 char **ppdata,
1574 uint32 data_count,
1575 uint32 max_data_count)
1576 {
1577 char *params = *ppparams;
1578 char *data = *ppdata;
1579 SEC_DESC *psd = NULL;
1580 size_t sd_size;
1581 uint32 security_info_wanted;
1582 files_struct *fsp = NULL;
1583 NTSTATUS status;
1584 DATA_BLOB blob;
1585
1586 if(parameter_count < 8) {
1587 reply_doserror(req, ERRDOS, ERRbadfunc);
1588 return;
1589 }
1590
1591 fsp = file_fsp(SVAL(params,0));
1592 if(!fsp) {
1593 reply_doserror(req, ERRDOS, ERRbadfid);
1594 return;
1595 }
1596
1597 security_info_wanted = IVAL(params,4);
1598
1599 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, info_wanted = 0x%x\n", fsp->fsp_name,
1600 (unsigned int)security_info_wanted ));
1601
1602 params = nttrans_realloc(ppparams, 4);
1603 if(params == NULL) {
1604 reply_doserror(req, ERRDOS, ERRnomem);
1605 return;
1606 }
1607
1608 /*
1609 * Get the permissions to return.
1610 */
1611
1612 if (!lp_nt_acl_support(SNUM(conn))) {
1613 status = get_null_nt_acl(talloc_tos(), &psd);
1614 } else {
1615 status = SMB_VFS_FGET_NT_ACL(
1616 fsp, security_info_wanted, &psd);
1617 }
1618
1619 if (!NT_STATUS_IS_OK(status)) {
1620 reply_nterror(req, status);
1621 return;
1622 }
1623
1624 sd_size = ndr_size_security_descriptor(psd, 0);
1625
1626 DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %lu.\n",(unsigned long)sd_size));
1627
1628 SIVAL(params,0,(uint32)sd_size);
1629
1630 if (max_data_count < sd_size) {
1631 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1632 params, 4, *ppdata, 0);
1633 return;
1634 }
1635
1636 /*
1637 * Allocate the data we will point this at.
1638 */
1639
1640 data = nttrans_realloc(ppdata, sd_size);
1641 if(data == NULL) {
1642 reply_doserror(req, ERRDOS, ERRnomem);
1643 return;
1644 }
1645
1646 status = marshall_sec_desc(talloc_tos(), psd,
1647 &blob.data, &blob.length);
1648
1649 if (!NT_STATUS_IS_OK(status)) {
1650 reply_nterror(req, status);
1651 return;
1652 }
1653
1654 SMB_ASSERT(sd_size == blob.length);
1655 memcpy(data, blob.data, sd_size);
1656
1657 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
1658
1659 return;
1660 }
1661
1662 /****************************************************************************
1663 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
1664 ****************************************************************************/
1665
1666 static void call_nt_transact_set_security_desc(connection_struct *conn,
1667 struct smb_request *req,
1668 uint16 **ppsetup,
1669 uint32 setup_count,
1670 char **ppparams,
1671 uint32 parameter_count,
1672 char **ppdata,
1673 uint32 data_count,
1674 uint32 max_data_count)
1675 {
1676 char *params= *ppparams;
1677 char *data = *ppdata;
1678 files_struct *fsp = NULL;
1679 uint32 security_info_sent = 0;
1680 NTSTATUS status;
1681
1682 if(parameter_count < 8) {
1683 reply_doserror(req, ERRDOS, ERRbadfunc);
1684 return;
1685 }
1686
1687 if((fsp = file_fsp(SVAL(params,0))) == NULL) {
1688 reply_doserror(req, ERRDOS, ERRbadfid);
1689 return;
1690 }
1691
1692 if(!lp_nt_acl_support(SNUM(conn))) {
1693 goto done;
1694 }
1695
1696 security_info_sent = IVAL(params,4);
1697
1698 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n", fsp->fsp_name,
1699 (unsigned int)security_info_sent ));
1700
1701 if (data_count == 0) {
1702 reply_doserror(req, ERRDOS, ERRnoaccess);
1703 return;
1704 }
1705
1706 status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
1707
1708 if (!NT_STATUS_IS_OK(status)) {
1709 reply_nterror(req, status);
1710 return;
1711 }
1712
1713 done:
1714 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1715 return;
1716 }
1717
1718 /****************************************************************************
1719 Reply to NT IOCTL
1720 ****************************************************************************/
1721
1722 static void call_nt_transact_ioctl(connection_struct *conn,
1723 struct smb_request *req,
1724 uint16 **ppsetup, uint32 setup_count,
1725 char **ppparams, uint32 parameter_count,
1726 char **ppdata, uint32 data_count,
1727 uint32 max_data_count)
1728 {
1729 uint32 function;
1730 uint16 fidnum;
1731 files_struct *fsp;
1732 uint8 isFSctl;
1733 uint8 compfilter;
1734 static bool logged_message;
1735 char *pdata = *ppdata;
1736
1737 if (setup_count != 8) {
1738 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
1739 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1740 return;
1741 }
1742
1743 function = IVAL(*ppsetup, 0);
1744 fidnum = SVAL(*ppsetup, 4);
1745 isFSctl = CVAL(*ppsetup, 6);
1746 compfilter = CVAL(*ppsetup, 7);
1747
1748 DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
1749 function, fidnum, isFSctl, compfilter));
1750
1751 fsp=file_fsp(fidnum);
1752 /* this check is done in each implemented function case for now
1753 because I don't want to break anything... --metze
1754 FSP_BELONGS_CONN(fsp,conn);*/
1755
1756 switch (function) {
1757 case FSCTL_SET_SPARSE:
1758 /* pretend this succeeded - tho strictly we should
1759 mark the file sparse (if the local fs supports it)
1760 so we can know if we need to pre-allocate or not */
1761
1762 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum));
1763 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1764 return;
1765
1766 case FSCTL_CREATE_OR_GET_OBJECT_ID:
1767 {
1768 unsigned char objid[16];
1769
1770 /* This should return the object-id on this file.
1771 * I think I'll make this be the inode+dev. JRA.
1772 */
1773
1774 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
1775
1776 if (!fsp_belongs_conn(conn, req, fsp)) {
1777 return;
1778 }
1779
1780 data_count = 64;
1781 pdata = nttrans_realloc(ppdata, data_count);
1782 if (pdata == NULL) {
1783 reply_nterror(req, NT_STATUS_NO_MEMORY);
1784 return;
1785 }
1786 push_file_id_16(pdata, &fsp->file_id);
1787 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
1788 push_file_id_16(pdata+32, &fsp->file_id);
1789 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
1790 pdata, data_count);
1791 return;
1792 }
1793
1794 case FSCTL_GET_REPARSE_POINT:
1795 /* pretend this fail - my winXP does it like this
1796 * --metze
1797 */
1798
1799 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1800 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1801 return;
1802
1803 case FSCTL_SET_REPARSE_POINT:
1804 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
1805 * --metze
1806 */
1807
1808 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1809 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1810 return;
1811
1812 case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
1813 {
1814 /*
1815 * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
1816 * and return their volume names. If max_data_count is 16, then it is just
1817 * asking for the number of volumes and length of the combined names.
1818 *
1819 * pdata is the data allocated by our caller, but that uses
1820 * total_data_count (which is 0 in our case) rather than max_data_count.
1821 * Allocate the correct amount and return the pointer to let
1822 * it be deallocated when we return.
1823 */
1824 SHADOW_COPY_DATA *shadow_data = NULL;
1825 TALLOC_CTX *shadow_mem_ctx = NULL;
1826 bool labels = False;
1827 uint32 labels_data_count = 0;
1828 uint32 i;
1829 char *cur_pdata;
1830
1831 if (!fsp_belongs_conn(conn, req, fsp)) {
1832 return;
1833 }
1834
1835 if (max_data_count < 16) {
1836 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
1837 max_data_count));
1838 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1839 return;
1840 }
1841
1842 if (max_data_count > 16) {
1843 labels = True;
1844 }
1845
1846 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
1847 if (shadow_mem_ctx == NULL) {
1848 DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
1849 reply_nterror(req, NT_STATUS_NO_MEMORY);
1850 return;
1851 }
1852
1853 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
1854 if (shadow_data == NULL) {
1855 DEBUG(0,("TALLOC_ZERO() failed!\n"));
1856 talloc_destroy(shadow_mem_ctx);
1857 reply_nterror(req, NT_STATUS_NO_MEMORY);
1858 return;
1859 }
1860
1861 shadow_data->mem_ctx = shadow_mem_ctx;
1862
1863 /*
1864 * Call the VFS routine to actually do the work.
1865 */
1866 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
1867 talloc_destroy(shadow_data->mem_ctx);
1868 if (errno == ENOSYS) {
1869 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
1870 conn->connectpath));
1871 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1872 return;
1873 } else {
1874 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
1875 conn->connectpath));
1876 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
1877 return;
1878 }
1879 }
1880
1881 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
1882
1883 if (!labels) {
1884 data_count = 16;
1885 } else {
1886 data_count = 12+labels_data_count+4;
1887 }
1888
1889 if (max_data_count<data_count) {
1890 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
1891 max_data_count,data_count));
1892 talloc_destroy(shadow_data->mem_ctx);
1893 reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
1894 return;
1895 }
1896
1897 pdata = nttrans_realloc(ppdata, data_count);
1898 if (pdata == NULL) {
1899 talloc_destroy(shadow_data->mem_ctx);
1900 reply_nterror(req, NT_STATUS_NO_MEMORY);
1901 return;
1902 }
1903
1904 cur_pdata = pdata;
1905
1906 /* num_volumes 4 bytes */
1907 SIVAL(pdata,0,shadow_data->num_volumes);
1908
1909 if (labels) {
1910 /* num_labels 4 bytes */
1911 SIVAL(pdata,4,shadow_data->num_volumes);
1912 }
1913
1914 /* needed_data_count 4 bytes */
1915 SIVAL(pdata,8,labels_data_count);
1916
1917 cur_pdata+=12;
1918
1919 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
1920 shadow_data->num_volumes,fsp->fsp_name));
1921 if (labels && shadow_data->labels) {
1922 for (i=0;i<shadow_data->num_volumes;i++) {
1923 srvstr_push(pdata, req->flags2,
1924 cur_pdata, shadow_data->labels[i],
1925 2*sizeof(SHADOW_COPY_LABEL),
1926 STR_UNICODE|STR_TERMINATE);
1927 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
1928 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
1929 }
1930 }
1931
1932 talloc_destroy(shadow_data->mem_ctx);
1933
1934 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
1935 pdata, data_count);
1936
1937 return;
1938 }
1939
1940 case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
1941 {
1942 /* pretend this succeeded -
1943 *
1944 * we have to send back a list with all files owned by this SID
1945 *
1946 * but I have to check that --metze
1947 */
1948 DOM_SID sid;
1949 uid_t uid;
1950 size_t sid_len = MIN(data_count-4,SID_MAX_SIZE);
1951
1952 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
1953
1954 if (!fsp_belongs_conn(conn, req, fsp)) {
1955 return;
1956 }
1957
1958 /* unknown 4 bytes: this is not the length of the sid :-( */
1959 /*unknown = IVAL(pdata,0);*/
1960
1961 sid_parse(pdata+4,sid_len,&sid);
1962 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
1963
1964 if (!sid_to_uid(&sid, &uid)) {
1965 DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
1966 sid_string_dbg(&sid),
1967 (unsigned long)sid_len));
1968 uid = (-1);
1969 }
1970
1971 /* we can take a look at the find source :-)
1972 *
1973 * find ./ -uid $uid -name '*' is what we need here
1974 *
1975 *
1976 * and send 4bytes len and then NULL terminated unicode strings
1977 * for each file
1978 *
1979 * but I don't know how to deal with the paged results
1980 * (maybe we can hang the result anywhere in the fsp struct)
1981 *
1982 * we don't send all files at once
1983 * and at the next we should *not* start from the beginning,
1984 * so we have to cache the result
1985 *
1986 * --metze
1987 */
1988
1989 /* this works for now... */
1990 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1991 return;
1992 }
1993 default:
1994 if (!logged_message) {
1995 logged_message = True; /* Only print this once... */
1996 DEBUG(0,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n",
1997 function));
1998 }
1999 }
2000
2001 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2002 }
2003
2004
2005 #ifdef HAVE_SYS_QUOTAS
2006 /****************************************************************************
2007 Reply to get user quota
2008 ****************************************************************************/
2009
2010 static void call_nt_transact_get_user_quota(connection_struct *conn,
2011 struct smb_request *req,
2012 uint16 **ppsetup,
2013 uint32 setup_count,
2014 char **ppparams,
2015 uint32 parameter_count,
2016 char **ppdata,
2017 uint32 data_count,
2018 uint32 max_data_count)
2019 {
2020 NTSTATUS nt_status = NT_STATUS_OK;
2021 char *params = *ppparams;
2022 char *pdata = *ppdata;
2023 char *entry;
2024 int data_len=0,param_len=0;
2025 int qt_len=0;
2026 int entry_len = 0;
2027 files_struct *fsp = NULL;
2028 uint16 level = 0;
2029 size_t sid_len;
2030 DOM_SID sid;
2031 bool start_enum = True;
2032 SMB_NTQUOTA_STRUCT qt;
2033 SMB_NTQUOTA_LIST *tmp_list;
2034 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2035
2036 ZERO_STRUCT(qt);
2037
2038 /* access check */
2039 if (current_user.ut.uid != 0) {
2040 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2041 "[%s]\n", lp_servicename(SNUM(conn)),
2042 conn->server_info->unix_name));
2043 reply_doserror(req, ERRDOS, ERRnoaccess);
2044 return;
2045 }
2046
2047 /*
2048 * Ensure minimum number of parameters sent.
2049 */
2050
2051 if (parameter_count < 4) {
2052 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2053 reply_doserror(req, ERRDOS, ERRinvalidparam);
2054 return;
2055 }
2056
2057 /* maybe we can check the quota_fnum */
2058 fsp = file_fsp(SVAL(params,0));
2059 if (!CHECK_NTQUOTA_HANDLE_OK(fsp,conn)) {
2060 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2061 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2062 return;
2063 }
2064
2065 /* the NULL pointer checking for fsp->fake_file_handle->pd
2066 * is done by CHECK_NTQUOTA_HANDLE_OK()
2067 */
2068 qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2069
2070 level = SVAL(params,2);
2071
2072 /* unknown 12 bytes leading in params */
2073
2074 switch (level) {
2075 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2076 /* seems that we should continue with the enum here --metze */
2077
2078 if (qt_handle->quota_list!=NULL &&
2079 qt_handle->tmp_list==NULL) {
2080
2081 /* free the list */
2082 free_ntquota_list(&(qt_handle->quota_list));
2083
2084 /* Realloc the size of parameters and data we will return */
2085 param_len = 4;
2086 params = nttrans_realloc(ppparams, param_len);
2087 if(params == NULL) {
2088 reply_doserror(req, ERRDOS, ERRnomem);
2089 return;
2090 }
2091
2092 data_len = 0;
2093 SIVAL(params,0,data_len);
2094
2095 break;
2096 }
2097
2098 start_enum = False;
2099
2100 case TRANSACT_GET_USER_QUOTA_LIST_START:
2101
2102 if (qt_handle->quota_list==NULL &&
2103 qt_handle->tmp_list==NULL) {
2104 start_enum = True;
2105 }
2106
2107 if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2108 reply_doserror(req, ERRSRV, ERRerror);
2109 return;
2110 }
2111
2112 /* Realloc the size of parameters and data we will return */
2113 param_len = 4;
2114 params = nttrans_realloc(ppparams, param_len);
2115 if(params == NULL) {
2116 reply_doserror(req, ERRDOS, ERRnomem);
2117 return;
2118 }
2119
2120 /* we should not trust the value in max_data_count*/
2121 max_data_count = MIN(max_data_count,2048);
2122
2123 pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2124 if(pdata == NULL) {
2125 reply_doserror(req, ERRDOS, ERRnomem);
2126 return;
2127 }
2128
2129 entry = pdata;
2130
2131 /* set params Size of returned Quota Data 4 bytes*/
2132 /* but set it later when we know it */
2133
2134 /* for each entry push the data */
2135
2136 if (start_enum) {
2137 qt_handle->tmp_list = qt_handle->quota_list;
2138 }
2139
2140 tmp_list = qt_handle->tmp_list;
2141
2142 for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2143 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2144
2145 sid_len = ndr_size_dom_sid(
2146 &tmp_list->quotas->sid, 0);
2147 entry_len = 40 + sid_len;
2148
2149 /* nextoffset entry 4 bytes */
2150 SIVAL(entry,0,entry_len);
2151
2152 /* then the len of the SID 4 bytes */
2153 SIVAL(entry,4,sid_len);
2154
2155 /* unknown data 8 bytes SMB_BIG_UINT */
2156 SBIG_UINT(entry,8,(SMB_BIG_UINT)0); /* this is not 0 in windows...-metze*/
2157
2158 /* the used disk space 8 bytes SMB_BIG_UINT */
2159 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2160
2161 /* the soft quotas 8 bytes SMB_BIG_UINT */
2162 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2163
2164 /* the hard quotas 8 bytes SMB_BIG_UINT */
2165 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2166
2167 /* and now the SID */
2168 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2169 }
2170
2171 qt_handle->tmp_list = tmp_list;
2172
2173 /* overwrite the offset of the last entry */
2174 SIVAL(entry-entry_len,0,0);
2175
2176 data_len = 4+qt_len;
2177 /* overwrite the params quota_data_len */
2178 SIVAL(params,0,data_len);
2179
2180 break;
2181
2182 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2183
2184 /* unknown 4 bytes IVAL(pdata,0) */
2185
2186 if (data_count < 8) {
2187 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2188 reply_doserror(req, ERRDOS, ERRunknownlevel);
2189 return;
2190 }
2191
2192 sid_len = IVAL(pdata,4);
2193 /* Ensure this is less than 1mb. */
2194 if (sid_len > (1024*1024)) {
2195 reply_doserror(req, ERRDOS, ERRnomem);
2196 return;
2197 }
2198
2199 if (data_count < 8+sid_len) {
2200 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2201 reply_doserror(req, ERRDOS, ERRunknownlevel);
2202 return;
2203 }
2204
2205 data_len = 4+40+sid_len;
2206
2207 if (max_data_count < data_len) {
2208 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2209 max_data_count, data_len));
2210 param_len = 4;
2211 SIVAL(params,0,data_len);
2212 data_len = 0;
2213 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2214 break;
2215 }
2216
2217 sid_parse(pdata+8,sid_len,&sid);
2218
2219 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2220 ZERO_STRUCT(qt);
2221 /*
2222 * we have to return zero's in all fields
2223 * instead of returning an error here
2224 * --metze
2225 */
2226 }
2227
2228 /* Realloc the size of parameters and data we will return */
2229 param_len = 4;
2230 params = nttrans_realloc(ppparams, param_len);
2231 if(params == NULL) {
2232 reply_doserror(req, ERRDOS, ERRnomem);
2233 return;
2234 }
2235
2236 pdata = nttrans_realloc(ppdata, data_len);
2237 if(pdata == NULL) {
2238 reply_doserror(req, ERRDOS, ERRnomem);
2239 return;
2240 }
2241
2242 entry = pdata;
2243
2244 /* set params Size of returned Quota Data 4 bytes*/
2245 SIVAL(params,0,data_len);
2246
2247 /* nextoffset entry 4 bytes */
2248 SIVAL(entry,0,0);
2249
2250 /* then the len of the SID 4 bytes */
2251 SIVAL(entry,4,sid_len);
2252
2253 /* unknown data 8 bytes SMB_BIG_UINT */
2254 SBIG_UINT(entry,8,(SMB_BIG_UINT)0); /* this is not 0 in windows...-mezte*/
2255
2256 /* the used disk space 8 bytes SMB_BIG_UINT */
2257 SBIG_UINT(entry,16,qt.usedspace);
2258
2259 /* the soft quotas 8 bytes SMB_BIG_UINT */
2260 SBIG_UINT(entry,24,qt.softlim);
2261
2262 /* the hard quotas 8 bytes SMB_BIG_UINT */
2263 SBIG_UINT(entry,32,qt.hardlim);
2264
2265 /* and now the SID */
2266 sid_linearize(entry+40, sid_len, &sid);
2267
2268 break;
2269
2270 default:
2271 DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2272 reply_doserror(req, ERRSRV, ERRerror);
2273 return;
2274 break;
2275 }
2276
2277 send_nt_replies(conn, req, nt_status, params, param_len,
2278 pdata, data_len);
2279 }
2280
2281 /****************************************************************************
2282 Reply to set user quota
2283 ****************************************************************************/
2284
2285 static void call_nt_transact_set_user_quota(connection_struct *conn,
2286 struct smb_request *req,
2287 uint16 **ppsetup,
2288 uint32 setup_count,
2289 char **ppparams,
2290 uint32 parameter_count,
2291 char **ppdata,
2292 uint32 data_count,
2293 uint32 max_data_count)
2294 {
2295 char *params = *ppparams;
2296 char *pdata = *ppdata;
2297 int data_len=0,param_len=0;
2298 SMB_NTQUOTA_STRUCT qt;
2299 size_t sid_len;
2300 DOM_SID sid;
2301 files_struct *fsp = NULL;
2302
2303 ZERO_STRUCT(qt);
2304
2305 /* access check */
2306 if (current_user.ut.uid != 0) {
2307 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2308 "[%s]\n", lp_servicename(SNUM(conn)),
2309 conn->server_info->unix_name));
2310 reply_doserror(req, ERRDOS, ERRnoaccess);
2311 return;
2312 }
2313
2314 /*
2315 * Ensure minimum number of parameters sent.
2316 */
2317
2318 if (parameter_count < 2) {
2319 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2320 reply_doserror(req, ERRDOS, ERRinvalidparam);
2321 return;
2322 }
2323
2324 /* maybe we can check the quota_fnum */
2325 fsp = file_fsp(SVAL(params,0));
2326 if (!CHECK_NTQUOTA_HANDLE_OK(fsp,conn)) {
2327 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2328 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2329 return;
2330 }
2331
2332 if (data_count < 40) {
2333 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2334 reply_doserror(req, ERRDOS, ERRunknownlevel);
2335 return;
2336 }
2337
2338 /* offset to next quota record.
2339 * 4 bytes IVAL(pdata,0)
2340 * unused here...
2341 */
2342
2343 /* sid len */
2344 sid_len = IVAL(pdata,4);
2345
2346 if (data_count < 40+sid_len) {
2347 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2348 reply_doserror(req, ERRDOS, ERRunknownlevel);
2349 return;
2350 }
2351
2352 /* unknown 8 bytes in pdata
2353 * maybe its the change time in NTTIME
2354 */
2355
2356 /* the used space 8 bytes (SMB_BIG_UINT)*/
2357 qt.usedspace = (SMB_BIG_UINT)IVAL(pdata,16);
2358 #ifdef LARGE_SMB_OFF_T
2359 qt.usedspace |= (((SMB_BIG_UINT)IVAL(pdata,20)) << 32);
2360 #else /* LARGE_SMB_OFF_T */
2361 if ((IVAL(pdata,20) != 0)&&
2362 ((qt.usedspace != 0xFFFFFFFF)||
2363 (IVAL(pdata,20)!=0xFFFFFFFF))) {
2364 /* more than 32 bits? */
2365 reply_doserror(req, ERRDOS, ERRunknownlevel);
2366 return;
2367 }
2368 #endif /* LARGE_SMB_OFF_T */
2369
2370 /* the soft quotas 8 bytes (SMB_BIG_UINT)*/
2371 qt.softlim = (SMB_BIG_UINT)IVAL(pdata,24);
2372 #ifdef LARGE_SMB_OFF_T
2373 qt.softlim |= (((SMB_BIG_UINT)IVAL(pdata,28)) << 32);
2374 #else /* LARGE_SMB_OFF_T */
2375 if ((IVAL(pdata,28) != 0)&&
2376 ((qt.softlim != 0xFFFFFFFF)||
2377 (IVAL(pdata,28)!=0xFFFFFFFF))) {
2378 /* more than 32 bits? */
2379 reply_doserror(req, ERRDOS, ERRunknownlevel);
2380 return;
2381 }
2382 #endif /* LARGE_SMB_OFF_T */
2383
2384 /* the hard quotas 8 bytes (SMB_BIG_UINT)*/
2385 qt.hardlim = (SMB_BIG_UINT)IVAL(pdata,32);
2386 #ifdef LARGE_SMB_OFF_T
2387 qt.hardlim |= (((SMB_BIG_UINT)IVAL(pdata,36)) << 32);
2388 #else /* LARGE_SMB_OFF_T */
2389 if ((IVAL(pdata,36) != 0)&&
2390 ((qt.hardlim != 0xFFFFFFFF)||
2391 (IVAL(pdata,36)!=0xFFFFFFFF))) {
2392 /* more than 32 bits? */
2393 reply_doserror(req, ERRDOS, ERRunknownlevel);
2394 return;
2395 }
2396 #endif /* LARGE_SMB_OFF_T */
2397
2398 sid_parse(pdata+40,sid_len,&sid);
2399 DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2400
2401 /* 44 unknown bytes left... */
2402
2403 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2404 reply_doserror(req, ERRSRV, ERRerror);
2405 return;
2406 }
2407
2408 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2409 pdata, data_len);
2410 }
2411 #endif /* HAVE_SYS_QUOTAS */
2412
2413 static void handle_nttrans(connection_struct *conn,
2414 struct trans_state *state,
2415 struct smb_request *req)
2416 {
2417 if (Protocol >= PROTOCOL_NT1) {
2418 req->flags2 |= 0x40; /* IS_LONG_NAME */
2419 SSVAL(req->inbuf,smb_flg2,req->flags2);
2420 }
2421
2422 /* Now we must call the relevant NT_TRANS function */
2423 switch(state->call) {
2424 case NT_TRANSACT_CREATE:
2425 {
2426 START_PROFILE(NT_transact_create);
2427 call_nt_transact_create(
2428 conn, req,
2429 &state->setup, state->setup_count,
2430 &state->param, state->total_param,
2431 &state->data, state->total_data,
2432 state->max_data_return);
2433 END_PROFILE(NT_transact_create);
2434 break;
2435 }
2436
2437 case NT_TRANSACT_IOCTL:
2438 {
2439 START_PROFILE(NT_transact_ioctl);
2440 call_nt_transact_ioctl(
2441 conn, req,
2442 &state->setup, state->setup_count,
2443 &state->param, state->total_param,
2444 &state->data, state->total_data,
2445 state->max_data_return);
2446 END_PROFILE(NT_transact_ioctl);
2447 break;
2448 }
2449
2450 case NT_TRANSACT_SET_SECURITY_DESC:
2451 {
2452 START_PROFILE(NT_transact_set_security_desc);
2453 call_nt_transact_set_security_desc(
2454 conn, req,
2455 &state->setup, state->setup_count,
2456 &state->param, state->total_param,
2457 &state->data, state->total_data,
2458 state->max_data_return);
2459 END_PROFILE(NT_transact_set_security_desc);
2460 break;
2461 }
2462
2463 case NT_TRANSACT_NOTIFY_CHANGE:
2464 {
2465 START_PROFILE(NT_transact_notify_change);
2466 call_nt_transact_notify_change(
2467 conn, req,
2468 &state->setup, state->setup_count,
2469 &state->param, state->total_param,
2470 &state->data, state->total_data,
2471 state->max_data_return,
2472 state->max_param_return);
2473 END_PROFILE(NT_transact_notify_change);
2474 break;
2475 }
2476
2477 case NT_TRANSACT_RENAME:
2478 {
2479 START_PROFILE(NT_transact_rename);
2480 call_nt_transact_rename(
2481 conn, req,
2482 &state->setup, state->setup_count,
2483 &state->param, state->total_param,
2484 &state->data, state->total_data,
2485 state->max_data_return);
2486 END_PROFILE(NT_transact_rename);
2487 break;
2488 }
2489
2490 case NT_TRANSACT_QUERY_SECURITY_DESC:
2491 {
2492 START_PROFILE(NT_transact_query_security_desc);
2493 call_nt_transact_query_security_desc(
2494 conn, req,
2495 &state->setup, state->setup_count,
2496 &state->param, state->total_param,
2497 &state->data, state->total_data,
2498 state->max_data_return);
2499 END_PROFILE(NT_transact_query_security_desc);
2500 break;
2501 }
2502
2503 #ifdef HAVE_SYS_QUOTAS
2504 case NT_TRANSACT_GET_USER_QUOTA:
2505 {
2506 START_PROFILE(NT_transact_get_user_quota);
2507 call_nt_transact_get_user_quota(
2508 conn, req,
2509 &state->setup, state->setup_count,
2510 &state->param, state->total_param,
2511 &state->data, state->total_data,
2512 state->max_data_return);
2513 END_PROFILE(NT_transact_get_user_quota);
2514 break;
2515 }
2516
2517 case NT_TRANSACT_SET_USER_QUOTA:
2518 {
2519 START_PROFILE(NT_transact_set_user_quota);
2520 call_nt_transact_set_user_quota(
2521 conn, req,
2522 &state->setup, state->setup_count,
2523 &state->param, state->total_param,
2524 &state->data, state->total_data,
2525 state->max_data_return);
2526 END_PROFILE(NT_transact_set_user_quota);
2527 break;
2528 }
2529 #endif /* HAVE_SYS_QUOTAS */
2530
2531 default:
2532 /* Error in request */
2533 DEBUG(0,("handle_nttrans: Unknown request %d in "
2534 "nttrans call\n", state->call));
2535 reply_doserror(req, ERRSRV, ERRerror);
2536 return;
2537 }
2538 return;
2539 }
2540
2541 /****************************************************************************
2542 Reply to a SMBNTtrans.
2543 ****************************************************************************/
2544
2545 void reply_nttrans(struct smb_request *req)
2546 {
2547 connection_struct *conn = req->conn;
2548 uint32_t pscnt;
2549 uint32_t psoff;
2550 uint32_t dscnt;
2551 uint32_t dsoff;
2552 uint16 function_code;
2553 NTSTATUS result;
2554 struct trans_state *state;
2555 uint32_t size;
2556 uint32_t av_size;
2557
2558 START_PROFILE(SMBnttrans);
2559
2560 if (req->wct < 19) {
2561 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2562 END_PROFILE(SMBnttrans);
2563 return;
2564 }
2565
2566 size = smb_len(req->inbuf) + 4;
2567 av_size = smb_len(req->inbuf);
2568 pscnt = IVAL(req->inbuf,smb_nt_ParameterCount);
2569 psoff = IVAL(req->inbuf,smb_nt_ParameterOffset);
2570 dscnt = IVAL(req->inbuf,smb_nt_DataCount);
2571 dsoff = IVAL(req->inbuf,smb_nt_DataOffset);
2572 function_code = SVAL(req->inbuf, smb_nt_Function);
2573
2574 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2575 reply_doserror(req, ERRSRV, ERRaccess);
2576 END_PROFILE(SMBnttrans);
2577 return;
2578 }
2579
2580 result = allow_new_trans(conn->pending_trans, req->mid);
2581 if (!NT_STATUS_IS_OK(result)) {
2582 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2583 reply_nterror(req, result);
2584 END_PROFILE(SMBnttrans);
2585 return;
2586 }
2587
2588 if ((state = TALLOC_P(conn, struct trans_state)) == NULL) {
2589 reply_doserror(req, ERRSRV, ERRaccess);
2590 END_PROFILE(SMBnttrans);
2591 return;
2592 }
2593
2594 state->cmd = SMBnttrans;
2595
2596 state->mid = req->mid;
2597 state->vuid = req->vuid;
2598 state->total_data = IVAL(req->inbuf, smb_nt_TotalDataCount);
2599 state->data = NULL;
2600 state->total_param = IVAL(req->inbuf, smb_nt_TotalParameterCount);
2601 state->param = NULL;
2602 state->max_data_return = IVAL(req->inbuf,smb_nt_MaxDataCount);
2603 state->max_param_return = IVAL(req->inbuf,smb_nt_MaxParameterCount);
2604
2605 /* setup count is in *words* */
2606 state->setup_count = 2*CVAL(req->inbuf,smb_nt_SetupCount);
2607 state->setup = NULL;
2608 state->call = function_code;
2609
2610 /*
2611 * All nttrans messages we handle have smb_wct == 19 +
2612 * state->setup_count. Ensure this is so as a sanity check.
2613 */
2614
2615 if(req->wct != 19 + (state->setup_count/2)) {
2616 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2617 req->wct, 19 + (state->setup_count/2)));
2618 goto bad_param;
2619 }
2620
2621 /* Don't allow more than 128mb for each value. */
2622 if ((state->total_data > (1024*1024*128)) ||
2623 (state->total_param > (1024*1024*128))) {
2624 reply_doserror(req, ERRDOS, ERRnomem);
2625 END_PROFILE(SMBnttrans);
2626 return;
2627 }
2628
2629 if ((dscnt > state->total_data) || (pscnt > state->total_param))
2630 goto bad_param;
2631
2632 if (state->total_data) {
2633 /* Can't use talloc here, the core routines do realloc on the
2634 * params and data. */
2635 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2636 DEBUG(0,("reply_nttrans: data malloc fail for %u "
2637 "bytes !\n", (unsigned int)state->total_data));
2638 TALLOC_FREE(state);
2639 reply_doserror(req, ERRDOS, ERRnomem);
2640 END_PROFILE(SMBnttrans);
2641 return;
2642 }
2643
2644 if (dscnt > state->total_data ||
2645 dsoff+dscnt < dsoff) {
2646 goto bad_param;
2647 }
2648
2649 if (dsoff > av_size ||
2650 dscnt > av_size ||
2651 dsoff+dscnt > av_size) {
2652 goto bad_param;
2653 }
2654
2655 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2656 }
2657
2658 if (state->total_param) {
2659 /* Can't use talloc here, the core routines do realloc on the
2660 * params and data. */
2661 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2662 DEBUG(0,("reply_nttrans: param malloc fail for %u "
2663 "bytes !\n", (unsigned int)state->total_param));
2664 SAFE_FREE(state->data);
2665 TALLOC_FREE(state);
2666 reply_doserror(req, ERRDOS, ERRnomem);
2667 END_PROFILE(SMBnttrans);
2668 return;
2669 }
2670
2671 if (pscnt > state->total_param ||
2672 psoff+pscnt < psoff) {
2673 goto bad_param;
2674 }
2675
2676 if (psoff > av_size ||
2677 pscnt > av_size ||
2678 psoff+pscnt > av_size) {
2679 goto bad_param;
2680 }
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 uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
2753 struct trans_state *state;
2754 uint32_t av_size;
2755 uint32_t 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 av_size = smb_len(req->inbuf);
2793
2794 pcnt = IVAL(req->inbuf,smb_nts_ParameterCount);
2795 poff = IVAL(req->inbuf, smb_nts_ParameterOffset);
2796 pdisp = IVAL(req->inbuf, smb_nts_ParameterDisplacement);
2797
2798 dcnt = IVAL(req->inbuf, smb_nts_DataCount);
2799 ddisp = IVAL(req->inbuf, smb_nts_DataDisplacement);
2800 doff = IVAL(req->inbuf, smb_nts_DataOffset);
2801
2802 state->received_param += pcnt;
2803 state->received_data += dcnt;
2804
2805 if ((state->received_data > state->total_data) ||
2806 (state->received_param > state->total_param))
2807 goto bad_param;
2808
2809 if (pcnt) {
2810 if (pdisp > state->total_param ||
2811 pcnt > state->total_param ||
2812 pdisp+pcnt > state->total_param ||
2813 pdisp+pcnt < pdisp) {
2814 goto bad_param;
2815 }
2816
2817 if (poff > av_size ||
2818 pcnt > av_size ||
2819 poff+pcnt > av_size ||
2820 poff+pcnt < poff) {
2821 goto bad_param;
2822 }
2823
2824 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,
2825 pcnt);
2826 }
2827
2828 if (dcnt) {
2829 if (ddisp > state->total_data ||
2830 dcnt > state->total_data ||
2831 ddisp+dcnt > state->total_data ||
2832 ddisp+dcnt < ddisp) {
2833 goto bad_param;
2834 }
2835
2836 if (ddisp > av_size ||
2837 dcnt > av_size ||
2838 ddisp+dcnt > av_size ||
2839 ddisp+dcnt < ddisp) {
2840 goto bad_param;
2841 }
2842
2843 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,
2844 dcnt);
2845 }
2846
2847 if ((state->received_param < state->total_param) ||
2848 (state->received_data < state->total_data)) {
2849 END_PROFILE(SMBnttranss);
2850 return;
2851 }
2852
2853 /*
2854 * construct_reply_common will copy smb_com from inbuf to
2855 * outbuf. SMBnttranss is wrong here.
2856 */
2857 SCVAL(req->inbuf,smb_com,SMBnttrans);
2858
2859 handle_nttrans(conn, state, req);
2860
2861 DLIST_REMOVE(conn->pending_trans, state);
2862 SAFE_FREE(state->data);
2863 SAFE_FREE(state->param);
2864 TALLOC_FREE(state);
2865 END_PROFILE(SMBnttranss);
2866 return;
2867
2868 bad_param:
2869
2870 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
2871 DLIST_REMOVE(conn->pending_trans, state);
2872 SAFE_FREE(state->data);
2873 SAFE_FREE(state->param);
2874 TALLOC_FREE(state);
2875 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2876 END_PROFILE(SMBnttranss);
2877 return;
2878 }
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