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fix build warning.
[Samba.git] / source / smbd / nttrans.c
blobae7bd8b7b722a095d565ccd13b621a1e4a8723a1
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 if (fsp->fh->fd != -1) {
774 status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
775 }
776 else {
777 status = SMB_VFS_SET_NT_ACL(fsp, fsp->fsp_name,
778 security_info_sent, psd);
779 }
780
781 TALLOC_FREE(psd);
782
783 return status;
784 }
785
786 /****************************************************************************
787 Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
788 ****************************************************************************/
789
790 static struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
791 {
792 struct ea_list *ea_list_head = NULL;
793 size_t offset = 0;
794
795 if (data_size < 4) {
796 return NULL;
797 }
798
799 while (offset + 4 <= data_size) {
800 size_t next_offset = IVAL(pdata,offset);
801 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
802
803 if (!eal) {
804 return NULL;
805 }
806
807 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
808 if (next_offset == 0) {
809 break;
810 }
811 offset += next_offset;
812 }
813
814 return ea_list_head;
815 }
816
817 /****************************************************************************
818 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
819 ****************************************************************************/
820
821 static void call_nt_transact_create(connection_struct *conn,
822 struct smb_request *req,
823 uint16 **ppsetup, uint32 setup_count,
824 char **ppparams, uint32 parameter_count,
825 char **ppdata, uint32 data_count,
826 uint32 max_data_count)
827 {
828 char *fname = NULL;
829 char *params = *ppparams;
830 char *data = *ppdata;
831 /* Breakout the oplock request bits so we can set the reply bits separately. */
832 uint32 fattr=0;
833 SMB_OFF_T file_len = 0;
834 SMB_STRUCT_STAT sbuf;
835 int info = 0;
836 files_struct *fsp = NULL;
837 char *p = NULL;
838 uint32 flags;
839 uint32 access_mask;
840 uint32 file_attributes;
841 uint32 share_access;
842 uint32 create_disposition;
843 uint32 create_options;
844 uint32 sd_len;
845 struct security_descriptor *sd = NULL;
846 uint32 ea_len;
847 uint16 root_dir_fid;
848 struct timespec c_timespec;
849 struct timespec a_timespec;
850 struct timespec m_timespec;
851 struct ea_list *ea_list = NULL;
852 NTSTATUS status;
853 size_t param_len;
854 SMB_BIG_UINT allocation_size;
855 int oplock_request;
856 uint8_t oplock_granted;
857 TALLOC_CTX *ctx = talloc_tos();
858
859 DEBUG(5,("call_nt_transact_create\n"));
860
861 /*
862 * If it's an IPC, use the pipe handler.
863 */
864
865 if (IS_IPC(conn)) {
866 if (lp_nt_pipe_support()) {
867 do_nt_transact_create_pipe(
868 conn, req,
869 ppsetup, setup_count,
870 ppparams, parameter_count,
871 ppdata, data_count);
872 return;
873 }
874 reply_doserror(req, ERRDOS, ERRnoaccess);
875 return;
876 }
877
878 /*
879 * Ensure minimum number of parameters sent.
880 */
881
882 if(parameter_count < 54) {
883 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
884 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
885 return;
886 }
887
888 flags = IVAL(params,0);
889 access_mask = IVAL(params,8);
890 file_attributes = IVAL(params,20);
891 share_access = IVAL(params,24);
892 create_disposition = IVAL(params,28);
893 create_options = IVAL(params,32);
894 sd_len = IVAL(params,36);
895 ea_len = IVAL(params,40);
896 root_dir_fid = (uint16)IVAL(params,4);
897 allocation_size = (SMB_BIG_UINT)IVAL(params,12);
898 #ifdef LARGE_SMB_OFF_T
899 allocation_size |= (((SMB_BIG_UINT)IVAL(params,16)) << 32);
900 #endif
901
902 /* Ensure the data_len is correct for the sd and ea values given. */
903 if ((ea_len + sd_len > data_count)
904 || (ea_len > data_count) || (sd_len > data_count)
905 || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
906 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
907 "%u, data_count = %u\n", (unsigned int)ea_len,
908 (unsigned int)sd_len, (unsigned int)data_count));
909 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
910 return;
911 }
912
913 if (sd_len) {
914 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
915 sd_len));
916
917 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
918 &sd);
919 if (!NT_STATUS_IS_OK(status)) {
920 DEBUG(10, ("call_nt_transact_create: "
921 "unmarshall_sec_desc failed: %s\n",
922 nt_errstr(status)));
923 reply_nterror(req, status);
924 return;
925 }
926 }
927
928 if (ea_len) {
929 if (!lp_ea_support(SNUM(conn))) {
930 DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
931 "EA's not supported.\n",
932 (unsigned int)ea_len));
933 reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
934 return;
935 }
936
937 if (ea_len < 10) {
938 DEBUG(10,("call_nt_transact_create - ea_len = %u - "
939 "too small (should be more than 10)\n",
940 (unsigned int)ea_len ));
941 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
942 return;
943 }
944
945 /* We have already checked that ea_len <= data_count here. */
946 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
947 ea_len);
948 if (ea_list == NULL) {
949 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
950 return;
951 }
952 }
953
954 srvstr_get_path(ctx, params, req->flags2, &fname,
955 params+53, parameter_count-53,
956 STR_TERMINATE, &status);
957 if (!NT_STATUS_IS_OK(status)) {
958 reply_nterror(req, status);
959 return;
960 }
961
962 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
963 if (oplock_request) {
964 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
965 ? BATCH_OPLOCK : 0;
966 }
967
968 status = create_file(conn, req, root_dir_fid, fname,
969 access_mask, share_access, create_disposition,
970 create_options, file_attributes, oplock_request,
971 allocation_size, sd, ea_list, &fsp, &info, &sbuf);
972
973 if(!NT_STATUS_IS_OK(status)) {
974 if (open_was_deferred(req->mid)) {
975 /* We have re-scheduled this call, no error. */
976 return;
977 }
978 reply_openerror(req, status);
979 return;
980 }
981
982 /*
983 * If the caller set the extended oplock request bit
984 * and we granted one (by whatever means) - set the
985 * correct bit for extended oplock reply.
986 */
987
988 if (oplock_request &&
989 (lp_fake_oplocks(SNUM(conn))
990 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
991
992 /*
993 * Exclusive oplock granted
994 */
995
996 if (flags & REQUEST_BATCH_OPLOCK) {
997 oplock_granted = BATCH_OPLOCK_RETURN;
998 } else {
999 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1000 }
1001 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1002 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1003 } else {
1004 oplock_granted = NO_OPLOCK_RETURN;
1005 }
1006
1007 file_len = sbuf.st_size;
1008 fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
1009 if (fattr == 0) {
1010 fattr = FILE_ATTRIBUTE_NORMAL;
1011 }
1012
1013 /* Realloc the size of parameters and data we will return */
1014 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1015 /* Extended response is 32 more byyes. */
1016 param_len = 101;
1017 } else {
1018 param_len = 69;
1019 }
1020 params = nttrans_realloc(ppparams, param_len);
1021 if(params == NULL) {
1022 reply_doserror(req, ERRDOS, ERRnomem);
1023 return;
1024 }
1025
1026 p = params;
1027 SCVAL(p, 0, oplock_granted);
1028
1029 p += 2;
1030 SSVAL(p,0,fsp->fnum);
1031 p += 2;
1032 if ((create_disposition == FILE_SUPERSEDE)
1033 && (info == FILE_WAS_OVERWRITTEN)) {
1034 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1035 } else {
1036 SIVAL(p,0,info);
1037 }
1038 p += 8;
1039
1040 /* Create time. */
1041 c_timespec = get_create_timespec(
1042 &sbuf,lp_fake_dir_create_times(SNUM(conn)));
1043 a_timespec = get_atimespec(&sbuf);
1044 m_timespec = get_mtimespec(&sbuf);
1045
1046 if (lp_dos_filetime_resolution(SNUM(conn))) {
1047 dos_filetime_timespec(&c_timespec);
1048 dos_filetime_timespec(&a_timespec);
1049 dos_filetime_timespec(&m_timespec);
1050 }
1051
1052 put_long_date_timespec(p, c_timespec); /* create time. */
1053 p += 8;
1054 put_long_date_timespec(p, a_timespec); /* access time */
1055 p += 8;
1056 put_long_date_timespec(p, m_timespec); /* write time */
1057 p += 8;
1058 put_long_date_timespec(p, m_timespec); /* change time */
1059 p += 8;
1060 SIVAL(p,0,fattr); /* File Attributes. */
1061 p += 4;
1062 SOFF_T(p, 0, get_allocation_size(conn,fsp,&sbuf));
1063 p += 8;
1064 SOFF_T(p,0,file_len);
1065 p += 8;
1066 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1067 SSVAL(p,2,0x7);
1068 }
1069 p += 4;
1070 SCVAL(p,0,fsp->is_directory ? 1 : 0);
1071
1072 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1073 uint32 perms = 0;
1074 p += 25;
1075 if (fsp->is_directory
1076 || can_write_to_file(conn, fsp->fsp_name, &sbuf)) {
1077 perms = FILE_GENERIC_ALL;
1078 } else {
1079 perms = FILE_GENERIC_READ|FILE_EXECUTE;
1080 }
1081 SIVAL(p,0,perms);
1082 }
1083
1084 DEBUG(5,("call_nt_transact_create: open name = %s\n", fsp->fsp_name));
1085
1086 /* Send the required number of replies */
1087 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1088
1089 return;
1090 }
1091
1092 /****************************************************************************
1093 Reply to a NT CANCEL request.
1094 conn POINTER CAN BE NULL HERE !
1095 ****************************************************************************/
1096
1097 void reply_ntcancel(struct smb_request *req)
1098 {
1099 /*
1100 * Go through and cancel any pending change notifies.
1101 */
1102
1103 START_PROFILE(SMBntcancel);
1104 remove_pending_change_notify_requests_by_mid(req->mid);
1105 remove_pending_lock_requests_by_mid(req->mid);
1106 srv_cancel_sign_response(req->mid);
1107
1108 DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", req->mid));
1109
1110 END_PROFILE(SMBntcancel);
1111 return;
1112 }
1113
1114 /****************************************************************************
1115 Copy a file.
1116 ****************************************************************************/
1117
1118 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1119 connection_struct *conn,
1120 struct smb_request *req,
1121 const char *oldname_in,
1122 const char *newname_in,
1123 uint32 attrs)
1124 {
1125 SMB_STRUCT_STAT sbuf1, sbuf2;
1126 char *oldname = NULL;
1127 char *newname = NULL;
1128 char *last_component_oldname = NULL;
1129 char *last_component_newname = NULL;
1130 files_struct *fsp1,*fsp2;
1131 uint32 fattr;
1132 int info;
1133 SMB_OFF_T ret=-1;
1134 NTSTATUS status = NT_STATUS_OK;
1135
1136 ZERO_STRUCT(sbuf1);
1137 ZERO_STRUCT(sbuf2);
1138
1139 if (!CAN_WRITE(conn)) {
1140 return NT_STATUS_MEDIA_WRITE_PROTECTED;
1141 }
1142
1143 status = unix_convert(ctx, conn, oldname_in, False, &oldname,
1144 &last_component_oldname, &sbuf1);
1145 if (!NT_STATUS_IS_OK(status)) {
1146 return status;
1147 }
1148
1149 status = check_name(conn, oldname);
1150 if (!NT_STATUS_IS_OK(status)) {
1151 return status;
1152 }
1153
1154 /* Source must already exist. */
1155 if (!VALID_STAT(sbuf1)) {
1156 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
1157 }
1158 /* Ensure attributes match. */
1159 fattr = dos_mode(conn,oldname,&sbuf1);
1160 if ((fattr & ~attrs) & (aHIDDEN | aSYSTEM)) {
1161 return NT_STATUS_NO_SUCH_FILE;
1162 }
1163
1164 status = unix_convert(ctx, conn, newname_in, False, &newname,
1165 &last_component_newname, &sbuf2);
1166 if (!NT_STATUS_IS_OK(status)) {
1167 return status;
1168 }
1169
1170 status = check_name(conn, newname);
1171 if (!NT_STATUS_IS_OK(status)) {
1172 return status;
1173 }
1174
1175 /* Disallow if newname already exists. */
1176 if (VALID_STAT(sbuf2)) {
1177 return NT_STATUS_OBJECT_NAME_COLLISION;
1178 }
1179
1180 /* No links from a directory. */
1181 if (S_ISDIR(sbuf1.st_mode)) {
1182 return NT_STATUS_FILE_IS_A_DIRECTORY;
1183 }
1184
1185 /* Ensure this is within the share. */
1186 status = check_reduced_name(conn, oldname);
1187 if (!NT_STATUS_IS_OK(status)) {
1188 return status;
1189 }
1190
1191 DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1192 oldname, newname));
1193
1194 status = open_file_ntcreate(conn, req, oldname, &sbuf1,
1195 FILE_READ_DATA, /* Read-only. */
1196 FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
1197 FILE_OPEN,
1198 0, /* No create options. */
1199 FILE_ATTRIBUTE_NORMAL,
1200 NO_OPLOCK,
1201 &info, &fsp1);
1202
1203 if (!NT_STATUS_IS_OK(status)) {
1204 return status;
1205 }
1206
1207 status = open_file_ntcreate(conn, req, newname, &sbuf2,
1208 FILE_WRITE_DATA, /* Read-only. */
1209 FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
1210 FILE_CREATE,
1211 0, /* No create options. */
1212 fattr,
1213 NO_OPLOCK,
1214 &info, &fsp2);
1215
1216 if (!NT_STATUS_IS_OK(status)) {
1217 close_file(fsp1,ERROR_CLOSE);
1218 return status;
1219 }
1220
1221 if (sbuf1.st_size) {
1222 ret = vfs_transfer_file(fsp1, fsp2, sbuf1.st_size);
1223 }
1224
1225 /*
1226 * As we are opening fsp1 read-only we only expect
1227 * an error on close on fsp2 if we are out of space.
1228 * Thus we don't look at the error return from the
1229 * close of fsp1.
1230 */
1231 close_file(fsp1,NORMAL_CLOSE);
1232
1233 /* Ensure the modtime is set correctly on the destination file. */
1234 set_close_write_time(fsp2, get_mtimespec(&sbuf1));
1235
1236 status = close_file(fsp2,NORMAL_CLOSE);
1237
1238 /* Grrr. We have to do this as open_file_ntcreate adds aARCH when it
1239 creates the file. This isn't the correct thing to do in the copy
1240 case. JRA */
1241 file_set_dosmode(conn, newname, fattr, &sbuf2,
1242 parent_dirname(newname),false);
1243
1244 if (ret < (SMB_OFF_T)sbuf1.st_size) {
1245 return NT_STATUS_DISK_FULL;
1246 }
1247
1248 if (!NT_STATUS_IS_OK(status)) {
1249 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1250 nt_errstr(status), oldname, newname));
1251 }
1252 return status;
1253 }
1254
1255 /****************************************************************************
1256 Reply to a NT rename request.
1257 ****************************************************************************/
1258
1259 void reply_ntrename(struct smb_request *req)
1260 {
1261 connection_struct *conn = req->conn;
1262 char *oldname = NULL;
1263 char *newname = NULL;
1264 char *p;
1265 NTSTATUS status;
1266 bool src_has_wcard = False;
1267 bool dest_has_wcard = False;
1268 uint32 attrs;
1269 uint16 rename_type;
1270 TALLOC_CTX *ctx = talloc_tos();
1271
1272 START_PROFILE(SMBntrename);
1273
1274 if (req->wct < 4) {
1275 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1276 END_PROFILE(SMBntrename);
1277 return;
1278 }
1279
1280 attrs = SVAL(req->inbuf,smb_vwv0);
1281 rename_type = SVAL(req->inbuf,smb_vwv1);
1282
1283 p = smb_buf(req->inbuf) + 1;
1284 p += srvstr_get_path_wcard(ctx, (char *)req->inbuf, req->flags2, &oldname, p,
1285 0, STR_TERMINATE, &status,
1286 &src_has_wcard);
1287 if (!NT_STATUS_IS_OK(status)) {
1288 reply_nterror(req, status);
1289 END_PROFILE(SMBntrename);
1290 return;
1291 }
1292
1293 if( is_ntfs_stream_name(oldname)) {
1294 /* Can't rename a stream. */
1295 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1296 END_PROFILE(SMBntrename);
1297 return;
1298 }
1299
1300 if (ms_has_wild(oldname)) {
1301 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1302 END_PROFILE(SMBntrename);
1303 return;
1304 }
1305
1306 p++;
1307 p += srvstr_get_path_wcard(ctx, (char *)req->inbuf, req->flags2, &newname, p,
1308 0, STR_TERMINATE, &status,
1309 &dest_has_wcard);
1310 if (!NT_STATUS_IS_OK(status)) {
1311 reply_nterror(req, status);
1312 END_PROFILE(SMBntrename);
1313 return;
1314 }
1315
1316 status = resolve_dfspath(ctx, conn,
1317 req->flags2 & FLAGS2_DFS_PATHNAMES,
1318 oldname,
1319 &oldname);
1320 if (!NT_STATUS_IS_OK(status)) {
1321 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1322 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1323 ERRSRV, ERRbadpath);
1324 END_PROFILE(SMBntrename);
1325 return;
1326 }
1327 reply_nterror(req, status);
1328 END_PROFILE(SMBntrename);
1329 return;
1330 }
1331
1332 status = resolve_dfspath(ctx, conn,
1333 req->flags2 & FLAGS2_DFS_PATHNAMES,
1334 newname,
1335 &newname);
1336 if (!NT_STATUS_IS_OK(status)) {
1337 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1338 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1339 ERRSRV, ERRbadpath);
1340 END_PROFILE(SMBntrename);
1341 return;
1342 }
1343 reply_nterror(req, status);
1344 END_PROFILE(SMBntrename);
1345 return;
1346 }
1347
1348 DEBUG(3,("reply_ntrename : %s -> %s\n",oldname,newname));
1349
1350 switch(rename_type) {
1351 case RENAME_FLAG_RENAME:
1352 status = rename_internals(ctx, conn, req, oldname,
1353 newname, attrs, False, src_has_wcard,
1354 dest_has_wcard, DELETE_ACCESS);
1355 break;
1356 case RENAME_FLAG_HARD_LINK:
1357 if (src_has_wcard || dest_has_wcard) {
1358 /* No wildcards. */
1359 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1360 } else {
1361 status = hardlink_internals(ctx,
1362 conn,
1363 oldname,
1364 newname);
1365 }
1366 break;
1367 case RENAME_FLAG_COPY:
1368 if (src_has_wcard || dest_has_wcard) {
1369 /* No wildcards. */
1370 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1371 } else {
1372 status = copy_internals(ctx, conn, req, oldname,
1373 newname, attrs);
1374 }
1375 break;
1376 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1377 status = NT_STATUS_INVALID_PARAMETER;
1378 break;
1379 default:
1380 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1381 break;
1382 }
1383
1384 if (!NT_STATUS_IS_OK(status)) {
1385 if (open_was_deferred(req->mid)) {
1386 /* We have re-scheduled this call. */
1387 END_PROFILE(SMBntrename);
1388 return;
1389 }
1390
1391 reply_nterror(req, status);
1392 END_PROFILE(SMBntrename);
1393 return;
1394 }
1395
1396 reply_outbuf(req, 0, 0);
1397
1398 END_PROFILE(SMBntrename);
1399 return;
1400 }
1401
1402 /****************************************************************************
1403 Reply to a notify change - queue the request and
1404 don't allow a directory to be opened.
1405 ****************************************************************************/
1406
1407 static void call_nt_transact_notify_change(connection_struct *conn,
1408 struct smb_request *req,
1409 uint16 **ppsetup,
1410 uint32 setup_count,
1411 char **ppparams,
1412 uint32 parameter_count,
1413 char **ppdata, uint32 data_count,
1414 uint32 max_data_count,
1415 uint32 max_param_count)
1416 {
1417 uint16 *setup = *ppsetup;
1418 files_struct *fsp;
1419 uint32 filter;
1420 NTSTATUS status;
1421 bool recursive;
1422
1423 if(setup_count < 6) {
1424 reply_doserror(req, ERRDOS, ERRbadfunc);
1425 return;
1426 }
1427
1428 fsp = file_fsp(SVAL(setup,4));
1429 filter = IVAL(setup, 0);
1430 recursive = (SVAL(setup, 6) != 0) ? True : False;
1431
1432 DEBUG(3,("call_nt_transact_notify_change\n"));
1433
1434 if(!fsp) {
1435 reply_doserror(req, ERRDOS, ERRbadfid);
1436 return;
1437 }
1438
1439 {
1440 char *filter_string;
1441
1442 if (!(filter_string = notify_filter_string(NULL, filter))) {
1443 reply_nterror(req,NT_STATUS_NO_MEMORY);
1444 return;
1445 }
1446
1447 DEBUG(3,("call_nt_transact_notify_change: notify change "
1448 "called on %s, filter = %s, recursive = %d\n",
1449 fsp->fsp_name, filter_string, recursive));
1450
1451 TALLOC_FREE(filter_string);
1452 }
1453
1454 if((!fsp->is_directory) || (conn != fsp->conn)) {
1455 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1456 return;
1457 }
1458
1459 if (fsp->notify == NULL) {
1460
1461 status = change_notify_create(fsp, filter, recursive);
1462
1463 if (!NT_STATUS_IS_OK(status)) {
1464 DEBUG(10, ("change_notify_create returned %s\n",
1465 nt_errstr(status)));
1466 reply_nterror(req, status);
1467 return;
1468 }
1469 }
1470
1471 if (fsp->notify->num_changes != 0) {
1472
1473 /*
1474 * We've got changes pending, respond immediately
1475 */
1476
1477 /*
1478 * TODO: write a torture test to check the filtering behaviour
1479 * here.
1480 */
1481
1482 change_notify_reply(fsp->conn, req->inbuf, max_param_count, fsp->notify);
1483
1484 /*
1485 * change_notify_reply() above has independently sent its
1486 * results
1487 */
1488 return;
1489 }
1490
1491 /*
1492 * No changes pending, queue the request
1493 */
1494
1495 status = change_notify_add_request(req,
1496 max_param_count,
1497 filter,
1498 recursive, fsp);
1499 if (!NT_STATUS_IS_OK(status)) {
1500 reply_nterror(req, status);
1501 }
1502 return;
1503 }
1504
1505 /****************************************************************************
1506 Reply to an NT transact rename command.
1507 ****************************************************************************/
1508
1509 static void call_nt_transact_rename(connection_struct *conn,
1510 struct smb_request *req,
1511 uint16 **ppsetup, uint32 setup_count,
1512 char **ppparams, uint32 parameter_count,
1513 char **ppdata, uint32 data_count,
1514 uint32 max_data_count)
1515 {
1516 char *params = *ppparams;
1517 char *new_name = NULL;
1518 files_struct *fsp = NULL;
1519 bool dest_has_wcard = False;
1520 NTSTATUS status;
1521 TALLOC_CTX *ctx = talloc_tos();
1522
1523 if(parameter_count < 5) {
1524 reply_doserror(req, ERRDOS, ERRbadfunc);
1525 return;
1526 }
1527
1528 fsp = file_fsp(SVAL(params, 0));
1529 if (!check_fsp(conn, req, fsp, &current_user)) {
1530 return;
1531 }
1532 srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1533 parameter_count - 4,
1534 STR_TERMINATE, &status, &dest_has_wcard);
1535 if (!NT_STATUS_IS_OK(status)) {
1536 reply_nterror(req, status);
1537 return;
1538 }
1539
1540 /*
1541 * W2K3 ignores this request as the RAW-RENAME test
1542 * demonstrates, so we do.
1543 */
1544 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1545
1546 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1547 fsp->fsp_name, new_name));
1548
1549 return;
1550 }
1551
1552 /******************************************************************************
1553 Fake up a completely empty SD.
1554 *******************************************************************************/
1555
1556 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
1557 {
1558 size_t sd_size;
1559
1560 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1561 if(!*ppsd) {
1562 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1563 return NT_STATUS_NO_MEMORY;
1564 }
1565
1566 return NT_STATUS_OK;
1567 }
1568
1569 /****************************************************************************
1570 Reply to query a security descriptor.
1571 ****************************************************************************/
1572
1573 static void call_nt_transact_query_security_desc(connection_struct *conn,
1574 struct smb_request *req,
1575 uint16 **ppsetup,
1576 uint32 setup_count,
1577 char **ppparams,
1578 uint32 parameter_count,
1579 char **ppdata,
1580 uint32 data_count,
1581 uint32 max_data_count)
1582 {
1583 char *params = *ppparams;
1584 char *data = *ppdata;
1585 SEC_DESC *psd = NULL;
1586 size_t sd_size;
1587 uint32 security_info_wanted;
1588 files_struct *fsp = NULL;
1589 NTSTATUS status;
1590 DATA_BLOB blob;
1591
1592 if(parameter_count < 8) {
1593 reply_doserror(req, ERRDOS, ERRbadfunc);
1594 return;
1595 }
1596
1597 fsp = file_fsp(SVAL(params,0));
1598 if(!fsp) {
1599 reply_doserror(req, ERRDOS, ERRbadfid);
1600 return;
1601 }
1602
1603 security_info_wanted = IVAL(params,4);
1604
1605 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, info_wanted = 0x%x\n", fsp->fsp_name,
1606 (unsigned int)security_info_wanted ));
1607
1608 params = nttrans_realloc(ppparams, 4);
1609 if(params == NULL) {
1610 reply_doserror(req, ERRDOS, ERRnomem);
1611 return;
1612 }
1613
1614 /*
1615 * Get the permissions to return.
1616 */
1617
1618 if (!lp_nt_acl_support(SNUM(conn))) {
1619 status = get_null_nt_acl(talloc_tos(), &psd);
1620 } else {
1621 if (fsp->fh->fd != -1) {
1622 status = SMB_VFS_FGET_NT_ACL(
1623 fsp, security_info_wanted, &psd);
1624 }
1625 else {
1626 status = SMB_VFS_GET_NT_ACL(
1627 conn, fsp->fsp_name, security_info_wanted, &psd);
1628 }
1629 }
1630
1631 if (!NT_STATUS_IS_OK(status)) {
1632 reply_nterror(req, status);
1633 return;
1634 }
1635
1636 sd_size = ndr_size_security_descriptor(psd, 0);
1637
1638 DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %lu.\n",(unsigned long)sd_size));
1639
1640 SIVAL(params,0,(uint32)sd_size);
1641
1642 if (max_data_count < sd_size) {
1643 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1644 params, 4, *ppdata, 0);
1645 return;
1646 }
1647
1648 /*
1649 * Allocate the data we will point this at.
1650 */
1651
1652 data = nttrans_realloc(ppdata, sd_size);
1653 if(data == NULL) {
1654 reply_doserror(req, ERRDOS, ERRnomem);
1655 return;
1656 }
1657
1658 status = marshall_sec_desc(talloc_tos(), psd,
1659 &blob.data, &blob.length);
1660
1661 if (!NT_STATUS_IS_OK(status)) {
1662 reply_nterror(req, status);
1663 return;
1664 }
1665
1666 SMB_ASSERT(sd_size == blob.length);
1667 memcpy(data, blob.data, sd_size);
1668
1669 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
1670
1671 return;
1672 }
1673
1674 /****************************************************************************
1675 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
1676 ****************************************************************************/
1677
1678 static void call_nt_transact_set_security_desc(connection_struct *conn,
1679 struct smb_request *req,
1680 uint16 **ppsetup,
1681 uint32 setup_count,
1682 char **ppparams,
1683 uint32 parameter_count,
1684 char **ppdata,
1685 uint32 data_count,
1686 uint32 max_data_count)
1687 {
1688 char *params= *ppparams;
1689 char *data = *ppdata;
1690 files_struct *fsp = NULL;
1691 uint32 security_info_sent = 0;
1692 NTSTATUS status;
1693
1694 if(parameter_count < 8) {
1695 reply_doserror(req, ERRDOS, ERRbadfunc);
1696 return;
1697 }
1698
1699 if((fsp = file_fsp(SVAL(params,0))) == NULL) {
1700 reply_doserror(req, ERRDOS, ERRbadfid);
1701 return;
1702 }
1703
1704 if(!lp_nt_acl_support(SNUM(conn))) {
1705 goto done;
1706 }
1707
1708 security_info_sent = IVAL(params,4);
1709
1710 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n", fsp->fsp_name,
1711 (unsigned int)security_info_sent ));
1712
1713 if (data_count == 0) {
1714 reply_doserror(req, ERRDOS, ERRnoaccess);
1715 return;
1716 }
1717
1718 status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
1719
1720 if (!NT_STATUS_IS_OK(status)) {
1721 reply_nterror(req, status);
1722 return;
1723 }
1724
1725 done:
1726 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1727 return;
1728 }
1729
1730 /****************************************************************************
1731 Reply to NT IOCTL
1732 ****************************************************************************/
1733
1734 static void call_nt_transact_ioctl(connection_struct *conn,
1735 struct smb_request *req,
1736 uint16 **ppsetup, uint32 setup_count,
1737 char **ppparams, uint32 parameter_count,
1738 char **ppdata, uint32 data_count,
1739 uint32 max_data_count)
1740 {
1741 uint32 function;
1742 uint16 fidnum;
1743 files_struct *fsp;
1744 uint8 isFSctl;
1745 uint8 compfilter;
1746 static bool logged_message;
1747 char *pdata = *ppdata;
1748
1749 if (setup_count != 8) {
1750 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
1751 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1752 return;
1753 }
1754
1755 function = IVAL(*ppsetup, 0);
1756 fidnum = SVAL(*ppsetup, 4);
1757 isFSctl = CVAL(*ppsetup, 6);
1758 compfilter = CVAL(*ppsetup, 7);
1759
1760 DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
1761 function, fidnum, isFSctl, compfilter));
1762
1763 fsp=file_fsp(fidnum);
1764 /* this check is done in each implemented function case for now
1765 because I don't want to break anything... --metze
1766 FSP_BELONGS_CONN(fsp,conn);*/
1767
1768 switch (function) {
1769 case FSCTL_SET_SPARSE:
1770 /* pretend this succeeded - tho strictly we should
1771 mark the file sparse (if the local fs supports it)
1772 so we can know if we need to pre-allocate or not */
1773
1774 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum));
1775 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1776 return;
1777
1778 case FSCTL_CREATE_OR_GET_OBJECT_ID:
1779 {
1780 unsigned char objid[16];
1781
1782 /* This should return the object-id on this file.
1783 * I think I'll make this be the inode+dev. JRA.
1784 */
1785
1786 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
1787
1788 if (!fsp_belongs_conn(conn, req, fsp, &current_user)) {
1789 return;
1790 }
1791
1792 data_count = 64;
1793 pdata = nttrans_realloc(ppdata, data_count);
1794 if (pdata == NULL) {
1795 reply_nterror(req, NT_STATUS_NO_MEMORY);
1796 return;
1797 }
1798 push_file_id_16(pdata, &fsp->file_id);
1799 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
1800 push_file_id_16(pdata+32, &fsp->file_id);
1801 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
1802 pdata, data_count);
1803 return;
1804 }
1805
1806 case FSCTL_GET_REPARSE_POINT:
1807 /* pretend this fail - my winXP does it like this
1808 * --metze
1809 */
1810
1811 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1812 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1813 return;
1814
1815 case FSCTL_SET_REPARSE_POINT:
1816 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
1817 * --metze
1818 */
1819
1820 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1821 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1822 return;
1823
1824 case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
1825 {
1826 /*
1827 * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
1828 * and return their volume names. If max_data_count is 16, then it is just
1829 * asking for the number of volumes and length of the combined names.
1830 *
1831 * pdata is the data allocated by our caller, but that uses
1832 * total_data_count (which is 0 in our case) rather than max_data_count.
1833 * Allocate the correct amount and return the pointer to let
1834 * it be deallocated when we return.
1835 */
1836 SHADOW_COPY_DATA *shadow_data = NULL;
1837 TALLOC_CTX *shadow_mem_ctx = NULL;
1838 bool labels = False;
1839 uint32 labels_data_count = 0;
1840 uint32 i;
1841 char *cur_pdata;
1842
1843 if (!fsp_belongs_conn(conn, req, fsp, &current_user)) {
1844 return;
1845 }
1846
1847 if (max_data_count < 16) {
1848 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
1849 max_data_count));
1850 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1851 return;
1852 }
1853
1854 if (max_data_count > 16) {
1855 labels = True;
1856 }
1857
1858 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
1859 if (shadow_mem_ctx == NULL) {
1860 DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
1861 reply_nterror(req, NT_STATUS_NO_MEMORY);
1862 return;
1863 }
1864
1865 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
1866 if (shadow_data == NULL) {
1867 DEBUG(0,("TALLOC_ZERO() failed!\n"));
1868 talloc_destroy(shadow_mem_ctx);
1869 reply_nterror(req, NT_STATUS_NO_MEMORY);
1870 return;
1871 }
1872
1873 shadow_data->mem_ctx = shadow_mem_ctx;
1874
1875 /*
1876 * Call the VFS routine to actually do the work.
1877 */
1878 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
1879 talloc_destroy(shadow_data->mem_ctx);
1880 if (errno == ENOSYS) {
1881 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
1882 conn->connectpath));
1883 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1884 return;
1885 } else {
1886 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
1887 conn->connectpath));
1888 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
1889 return;
1890 }
1891 }
1892
1893 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
1894
1895 if (!labels) {
1896 data_count = 16;
1897 } else {
1898 data_count = 12+labels_data_count+4;
1899 }
1900
1901 if (max_data_count<data_count) {
1902 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
1903 max_data_count,data_count));
1904 talloc_destroy(shadow_data->mem_ctx);
1905 reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
1906 return;
1907 }
1908
1909 pdata = nttrans_realloc(ppdata, data_count);
1910 if (pdata == NULL) {
1911 talloc_destroy(shadow_data->mem_ctx);
1912 reply_nterror(req, NT_STATUS_NO_MEMORY);
1913 return;
1914 }
1915
1916 cur_pdata = pdata;
1917
1918 /* num_volumes 4 bytes */
1919 SIVAL(pdata,0,shadow_data->num_volumes);
1920
1921 if (labels) {
1922 /* num_labels 4 bytes */
1923 SIVAL(pdata,4,shadow_data->num_volumes);
1924 }
1925
1926 /* needed_data_count 4 bytes */
1927 SIVAL(pdata,8,labels_data_count);
1928
1929 cur_pdata+=12;
1930
1931 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
1932 shadow_data->num_volumes,fsp->fsp_name));
1933 if (labels && shadow_data->labels) {
1934 for (i=0;i<shadow_data->num_volumes;i++) {
1935 srvstr_push(pdata, req->flags2,
1936 cur_pdata, shadow_data->labels[i],
1937 2*sizeof(SHADOW_COPY_LABEL),
1938 STR_UNICODE|STR_TERMINATE);
1939 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
1940 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
1941 }
1942 }
1943
1944 talloc_destroy(shadow_data->mem_ctx);
1945
1946 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
1947 pdata, data_count);
1948
1949 return;
1950 }
1951
1952 case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
1953 {
1954 /* pretend this succeeded -
1955 *
1956 * we have to send back a list with all files owned by this SID
1957 *
1958 * but I have to check that --metze
1959 */
1960 DOM_SID sid;
1961 uid_t uid;
1962 size_t sid_len = MIN(data_count-4,SID_MAX_SIZE);
1963
1964 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
1965
1966 if (!fsp_belongs_conn(conn, req, fsp, &current_user)) {
1967 return;
1968 }
1969
1970 /* unknown 4 bytes: this is not the length of the sid :-( */
1971 /*unknown = IVAL(pdata,0);*/
1972
1973 sid_parse(pdata+4,sid_len,&sid);
1974 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
1975
1976 if (!sid_to_uid(&sid, &uid)) {
1977 DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
1978 sid_string_dbg(&sid),
1979 (unsigned long)sid_len));
1980 uid = (-1);
1981 }
1982
1983 /* we can take a look at the find source :-)
1984 *
1985 * find ./ -uid $uid -name '*' is what we need here
1986 *
1987 *
1988 * and send 4bytes len and then NULL terminated unicode strings
1989 * for each file
1990 *
1991 * but I don't know how to deal with the paged results
1992 * (maybe we can hang the result anywhere in the fsp struct)
1993 *
1994 * we don't send all files at once
1995 * and at the next we should *not* start from the beginning,
1996 * so we have to cache the result
1997 *
1998 * --metze
1999 */
2000
2001 /* this works for now... */
2002 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2003 return;
2004 }
2005 default:
2006 if (!logged_message) {
2007 logged_message = True; /* Only print this once... */
2008 DEBUG(0,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n",
2009 function));
2010 }
2011 }
2012
2013 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2014 }
2015
2016
2017 #ifdef HAVE_SYS_QUOTAS
2018 /****************************************************************************
2019 Reply to get user quota
2020 ****************************************************************************/
2021
2022 static void call_nt_transact_get_user_quota(connection_struct *conn,
2023 struct smb_request *req,
2024 uint16 **ppsetup,
2025 uint32 setup_count,
2026 char **ppparams,
2027 uint32 parameter_count,
2028 char **ppdata,
2029 uint32 data_count,
2030 uint32 max_data_count)
2031 {
2032 NTSTATUS nt_status = NT_STATUS_OK;
2033 char *params = *ppparams;
2034 char *pdata = *ppdata;
2035 char *entry;
2036 int data_len=0,param_len=0;
2037 int qt_len=0;
2038 int entry_len = 0;
2039 files_struct *fsp = NULL;
2040 uint16 level = 0;
2041 size_t sid_len;
2042 DOM_SID sid;
2043 bool start_enum = True;
2044 SMB_NTQUOTA_STRUCT qt;
2045 SMB_NTQUOTA_LIST *tmp_list;
2046 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2047
2048 ZERO_STRUCT(qt);
2049
2050 /* access check */
2051 if (current_user.ut.uid != 0) {
2052 DEBUG(1,("get_user_quota: access_denied service [%s] user [%s]\n",
2053 lp_servicename(SNUM(conn)),conn->user));
2054 reply_doserror(req, ERRDOS, ERRnoaccess);
2055 return;
2056 }
2057
2058 /*
2059 * Ensure minimum number of parameters sent.
2060 */
2061
2062 if (parameter_count < 4) {
2063 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2064 reply_doserror(req, ERRDOS, ERRinvalidparam);
2065 return;
2066 }
2067
2068 /* maybe we can check the quota_fnum */
2069 fsp = file_fsp(SVAL(params,0));
2070 if (!CHECK_NTQUOTA_HANDLE_OK(fsp,conn)) {
2071 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2072 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2073 return;
2074 }
2075
2076 /* the NULL pointer checking for fsp->fake_file_handle->pd
2077 * is done by CHECK_NTQUOTA_HANDLE_OK()
2078 */
2079 qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->pd;
2080
2081 level = SVAL(params,2);
2082
2083 /* unknown 12 bytes leading in params */
2084
2085 switch (level) {
2086 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2087 /* seems that we should continue with the enum here --metze */
2088
2089 if (qt_handle->quota_list!=NULL &&
2090 qt_handle->tmp_list==NULL) {
2091
2092 /* free the list */
2093 free_ntquota_list(&(qt_handle->quota_list));
2094
2095 /* Realloc the size of parameters and data we will return */
2096 param_len = 4;
2097 params = nttrans_realloc(ppparams, param_len);
2098 if(params == NULL) {
2099 reply_doserror(req, ERRDOS, ERRnomem);
2100 return;
2101 }
2102
2103 data_len = 0;
2104 SIVAL(params,0,data_len);
2105
2106 break;
2107 }
2108
2109 start_enum = False;
2110
2111 case TRANSACT_GET_USER_QUOTA_LIST_START:
2112
2113 if (qt_handle->quota_list==NULL &&
2114 qt_handle->tmp_list==NULL) {
2115 start_enum = True;
2116 }
2117
2118 if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2119 reply_doserror(req, ERRSRV, ERRerror);
2120 return;
2121 }
2122
2123 /* Realloc the size of parameters and data we will return */
2124 param_len = 4;
2125 params = nttrans_realloc(ppparams, param_len);
2126 if(params == NULL) {
2127 reply_doserror(req, ERRDOS, ERRnomem);
2128 return;
2129 }
2130
2131 /* we should not trust the value in max_data_count*/
2132 max_data_count = MIN(max_data_count,2048);
2133
2134 pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2135 if(pdata == NULL) {
2136 reply_doserror(req, ERRDOS, ERRnomem);
2137 return;
2138 }
2139
2140 entry = pdata;
2141
2142 /* set params Size of returned Quota Data 4 bytes*/
2143 /* but set it later when we know it */
2144
2145 /* for each entry push the data */
2146
2147 if (start_enum) {
2148 qt_handle->tmp_list = qt_handle->quota_list;
2149 }
2150
2151 tmp_list = qt_handle->tmp_list;
2152
2153 for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2154 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2155
2156 sid_len = ndr_size_dom_sid(
2157 &tmp_list->quotas->sid, 0);
2158 entry_len = 40 + sid_len;
2159
2160 /* nextoffset entry 4 bytes */
2161 SIVAL(entry,0,entry_len);
2162
2163 /* then the len of the SID 4 bytes */
2164 SIVAL(entry,4,sid_len);
2165
2166 /* unknown data 8 bytes SMB_BIG_UINT */
2167 SBIG_UINT(entry,8,(SMB_BIG_UINT)0); /* this is not 0 in windows...-metze*/
2168
2169 /* the used disk space 8 bytes SMB_BIG_UINT */
2170 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2171
2172 /* the soft quotas 8 bytes SMB_BIG_UINT */
2173 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2174
2175 /* the hard quotas 8 bytes SMB_BIG_UINT */
2176 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2177
2178 /* and now the SID */
2179 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2180 }
2181
2182 qt_handle->tmp_list = tmp_list;
2183
2184 /* overwrite the offset of the last entry */
2185 SIVAL(entry-entry_len,0,0);
2186
2187 data_len = 4+qt_len;
2188 /* overwrite the params quota_data_len */
2189 SIVAL(params,0,data_len);
2190
2191 break;
2192
2193 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2194
2195 /* unknown 4 bytes IVAL(pdata,0) */
2196
2197 if (data_count < 8) {
2198 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2199 reply_doserror(req, ERRDOS, ERRunknownlevel);
2200 return;
2201 }
2202
2203 sid_len = IVAL(pdata,4);
2204 /* Ensure this is less than 1mb. */
2205 if (sid_len > (1024*1024)) {
2206 reply_doserror(req, ERRDOS, ERRnomem);
2207 return;
2208 }
2209
2210 if (data_count < 8+sid_len) {
2211 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2212 reply_doserror(req, ERRDOS, ERRunknownlevel);
2213 return;
2214 }
2215
2216 data_len = 4+40+sid_len;
2217
2218 if (max_data_count < data_len) {
2219 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2220 max_data_count, data_len));
2221 param_len = 4;
2222 SIVAL(params,0,data_len);
2223 data_len = 0;
2224 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2225 break;
2226 }
2227
2228 sid_parse(pdata+8,sid_len,&sid);
2229
2230 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2231 ZERO_STRUCT(qt);
2232 /*
2233 * we have to return zero's in all fields
2234 * instead of returning an error here
2235 * --metze
2236 */
2237 }
2238
2239 /* Realloc the size of parameters and data we will return */
2240 param_len = 4;
2241 params = nttrans_realloc(ppparams, param_len);
2242 if(params == NULL) {
2243 reply_doserror(req, ERRDOS, ERRnomem);
2244 return;
2245 }
2246
2247 pdata = nttrans_realloc(ppdata, data_len);
2248 if(pdata == NULL) {
2249 reply_doserror(req, ERRDOS, ERRnomem);
2250 return;
2251 }
2252
2253 entry = pdata;
2254
2255 /* set params Size of returned Quota Data 4 bytes*/
2256 SIVAL(params,0,data_len);
2257
2258 /* nextoffset entry 4 bytes */
2259 SIVAL(entry,0,0);
2260
2261 /* then the len of the SID 4 bytes */
2262 SIVAL(entry,4,sid_len);
2263
2264 /* unknown data 8 bytes SMB_BIG_UINT */
2265 SBIG_UINT(entry,8,(SMB_BIG_UINT)0); /* this is not 0 in windows...-mezte*/
2266
2267 /* the used disk space 8 bytes SMB_BIG_UINT */
2268 SBIG_UINT(entry,16,qt.usedspace);
2269
2270 /* the soft quotas 8 bytes SMB_BIG_UINT */
2271 SBIG_UINT(entry,24,qt.softlim);
2272
2273 /* the hard quotas 8 bytes SMB_BIG_UINT */
2274 SBIG_UINT(entry,32,qt.hardlim);
2275
2276 /* and now the SID */
2277 sid_linearize(entry+40, sid_len, &sid);
2278
2279 break;
2280
2281 default:
2282 DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2283 reply_doserror(req, ERRSRV, ERRerror);
2284 return;
2285 break;
2286 }
2287
2288 send_nt_replies(conn, req, nt_status, params, param_len,
2289 pdata, data_len);
2290 }
2291
2292 /****************************************************************************
2293 Reply to set user quota
2294 ****************************************************************************/
2295
2296 static void call_nt_transact_set_user_quota(connection_struct *conn,
2297 struct smb_request *req,
2298 uint16 **ppsetup,
2299 uint32 setup_count,
2300 char **ppparams,
2301 uint32 parameter_count,
2302 char **ppdata,
2303 uint32 data_count,
2304 uint32 max_data_count)
2305 {
2306 char *params = *ppparams;
2307 char *pdata = *ppdata;
2308 int data_len=0,param_len=0;
2309 SMB_NTQUOTA_STRUCT qt;
2310 size_t sid_len;
2311 DOM_SID sid;
2312 files_struct *fsp = NULL;
2313
2314 ZERO_STRUCT(qt);
2315
2316 /* access check */
2317 if (current_user.ut.uid != 0) {
2318 DEBUG(1,("set_user_quota: access_denied service [%s] user [%s]\n",
2319 lp_servicename(SNUM(conn)),conn->user));
2320 reply_doserror(req, ERRDOS, ERRnoaccess);
2321 return;
2322 }
2323
2324 /*
2325 * Ensure minimum number of parameters sent.
2326 */
2327
2328 if (parameter_count < 2) {
2329 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2330 reply_doserror(req, ERRDOS, ERRinvalidparam);
2331 return;
2332 }
2333
2334 /* maybe we can check the quota_fnum */
2335 fsp = file_fsp(SVAL(params,0));
2336 if (!CHECK_NTQUOTA_HANDLE_OK(fsp,conn)) {
2337 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2338 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2339 return;
2340 }
2341
2342 if (data_count < 40) {
2343 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2344 reply_doserror(req, ERRDOS, ERRunknownlevel);
2345 return;
2346 }
2347
2348 /* offset to next quota record.
2349 * 4 bytes IVAL(pdata,0)
2350 * unused here...
2351 */
2352
2353 /* sid len */
2354 sid_len = IVAL(pdata,4);
2355
2356 if (data_count < 40+sid_len) {
2357 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2358 reply_doserror(req, ERRDOS, ERRunknownlevel);
2359 return;
2360 }
2361
2362 /* unknown 8 bytes in pdata
2363 * maybe its the change time in NTTIME
2364 */
2365
2366 /* the used space 8 bytes (SMB_BIG_UINT)*/
2367 qt.usedspace = (SMB_BIG_UINT)IVAL(pdata,16);
2368 #ifdef LARGE_SMB_OFF_T
2369 qt.usedspace |= (((SMB_BIG_UINT)IVAL(pdata,20)) << 32);
2370 #else /* LARGE_SMB_OFF_T */
2371 if ((IVAL(pdata,20) != 0)&&
2372 ((qt.usedspace != 0xFFFFFFFF)||
2373 (IVAL(pdata,20)!=0xFFFFFFFF))) {
2374 /* more than 32 bits? */
2375 reply_doserror(req, ERRDOS, ERRunknownlevel);
2376 return;
2377 }
2378 #endif /* LARGE_SMB_OFF_T */
2379
2380 /* the soft quotas 8 bytes (SMB_BIG_UINT)*/
2381 qt.softlim = (SMB_BIG_UINT)IVAL(pdata,24);
2382 #ifdef LARGE_SMB_OFF_T
2383 qt.softlim |= (((SMB_BIG_UINT)IVAL(pdata,28)) << 32);
2384 #else /* LARGE_SMB_OFF_T */
2385 if ((IVAL(pdata,28) != 0)&&
2386 ((qt.softlim != 0xFFFFFFFF)||
2387 (IVAL(pdata,28)!=0xFFFFFFFF))) {
2388 /* more than 32 bits? */
2389 reply_doserror(req, ERRDOS, ERRunknownlevel);
2390 return;
2391 }
2392 #endif /* LARGE_SMB_OFF_T */
2393
2394 /* the hard quotas 8 bytes (SMB_BIG_UINT)*/
2395 qt.hardlim = (SMB_BIG_UINT)IVAL(pdata,32);
2396 #ifdef LARGE_SMB_OFF_T
2397 qt.hardlim |= (((SMB_BIG_UINT)IVAL(pdata,36)) << 32);
2398 #else /* LARGE_SMB_OFF_T */
2399 if ((IVAL(pdata,36) != 0)&&
2400 ((qt.hardlim != 0xFFFFFFFF)||
2401 (IVAL(pdata,36)!=0xFFFFFFFF))) {
2402 /* more than 32 bits? */
2403 reply_doserror(req, ERRDOS, ERRunknownlevel);
2404 return;
2405 }
2406 #endif /* LARGE_SMB_OFF_T */
2407
2408 sid_parse(pdata+40,sid_len,&sid);
2409 DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2410
2411 /* 44 unknown bytes left... */
2412
2413 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2414 reply_doserror(req, ERRSRV, ERRerror);
2415 return;
2416 }
2417
2418 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2419 pdata, data_len);
2420 }
2421 #endif /* HAVE_SYS_QUOTAS */
2422
2423 static void handle_nttrans(connection_struct *conn,
2424 struct trans_state *state,
2425 struct smb_request *req)
2426 {
2427 if (Protocol >= PROTOCOL_NT1) {
2428 req->flags2 |= 0x40; /* IS_LONG_NAME */
2429 SSVAL(req->inbuf,smb_flg2,req->flags2);
2430 }
2431
2432 /* Now we must call the relevant NT_TRANS function */
2433 switch(state->call) {
2434 case NT_TRANSACT_CREATE:
2435 {
2436 START_PROFILE(NT_transact_create);
2437 call_nt_transact_create(
2438 conn, req,
2439 &state->setup, state->setup_count,
2440 &state->param, state->total_param,
2441 &state->data, state->total_data,
2442 state->max_data_return);
2443 END_PROFILE(NT_transact_create);
2444 break;
2445 }
2446
2447 case NT_TRANSACT_IOCTL:
2448 {
2449 START_PROFILE(NT_transact_ioctl);
2450 call_nt_transact_ioctl(
2451 conn, req,
2452 &state->setup, state->setup_count,
2453 &state->param, state->total_param,
2454 &state->data, state->total_data,
2455 state->max_data_return);
2456 END_PROFILE(NT_transact_ioctl);
2457 break;
2458 }
2459
2460 case NT_TRANSACT_SET_SECURITY_DESC:
2461 {
2462 START_PROFILE(NT_transact_set_security_desc);
2463 call_nt_transact_set_security_desc(
2464 conn, req,
2465 &state->setup, state->setup_count,
2466 &state->param, state->total_param,
2467 &state->data, state->total_data,
2468 state->max_data_return);
2469 END_PROFILE(NT_transact_set_security_desc);
2470 break;
2471 }
2472
2473 case NT_TRANSACT_NOTIFY_CHANGE:
2474 {
2475 START_PROFILE(NT_transact_notify_change);
2476 call_nt_transact_notify_change(
2477 conn, req,
2478 &state->setup, state->setup_count,
2479 &state->param, state->total_param,
2480 &state->data, state->total_data,
2481 state->max_data_return,
2482 state->max_param_return);
2483 END_PROFILE(NT_transact_notify_change);
2484 break;
2485 }
2486
2487 case NT_TRANSACT_RENAME:
2488 {
2489 START_PROFILE(NT_transact_rename);
2490 call_nt_transact_rename(
2491 conn, req,
2492 &state->setup, state->setup_count,
2493 &state->param, state->total_param,
2494 &state->data, state->total_data,
2495 state->max_data_return);
2496 END_PROFILE(NT_transact_rename);
2497 break;
2498 }
2499
2500 case NT_TRANSACT_QUERY_SECURITY_DESC:
2501 {
2502 START_PROFILE(NT_transact_query_security_desc);
2503 call_nt_transact_query_security_desc(
2504 conn, req,
2505 &state->setup, state->setup_count,
2506 &state->param, state->total_param,
2507 &state->data, state->total_data,
2508 state->max_data_return);
2509 END_PROFILE(NT_transact_query_security_desc);
2510 break;
2511 }
2512
2513 #ifdef HAVE_SYS_QUOTAS
2514 case NT_TRANSACT_GET_USER_QUOTA:
2515 {
2516 START_PROFILE(NT_transact_get_user_quota);
2517 call_nt_transact_get_user_quota(
2518 conn, req,
2519 &state->setup, state->setup_count,
2520 &state->param, state->total_param,
2521 &state->data, state->total_data,
2522 state->max_data_return);
2523 END_PROFILE(NT_transact_get_user_quota);
2524 break;
2525 }
2526
2527 case NT_TRANSACT_SET_USER_QUOTA:
2528 {
2529 START_PROFILE(NT_transact_set_user_quota);
2530 call_nt_transact_set_user_quota(
2531 conn, req,
2532 &state->setup, state->setup_count,
2533 &state->param, state->total_param,
2534 &state->data, state->total_data,
2535 state->max_data_return);
2536 END_PROFILE(NT_transact_set_user_quota);
2537 break;
2538 }
2539 #endif /* HAVE_SYS_QUOTAS */
2540
2541 default:
2542 /* Error in request */
2543 DEBUG(0,("handle_nttrans: Unknown request %d in "
2544 "nttrans call\n", state->call));
2545 reply_doserror(req, ERRSRV, ERRerror);
2546 return;
2547 }
2548 return;
2549 }
2550
2551 /****************************************************************************
2552 Reply to a SMBNTtrans.
2553 ****************************************************************************/
2554
2555 void reply_nttrans(struct smb_request *req)
2556 {
2557 connection_struct *conn = req->conn;
2558 uint32_t pscnt;
2559 uint32_t psoff;
2560 uint32_t dscnt;
2561 uint32_t dsoff;
2562 uint16 function_code;
2563 NTSTATUS result;
2564 struct trans_state *state;
2565 uint32_t size;
2566 uint32_t av_size;
2567
2568 START_PROFILE(SMBnttrans);
2569
2570 if (req->wct < 19) {
2571 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2572 END_PROFILE(SMBnttrans);
2573 return;
2574 }
2575
2576 size = smb_len(req->inbuf) + 4;
2577 av_size = smb_len(req->inbuf);
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
2654 if (dscnt > state->total_data ||
2655 dsoff+dscnt < dsoff) {
2656 goto bad_param;
2657 }
2658
2659 if (dsoff > av_size ||
2660 dscnt > av_size ||
2661 dsoff+dscnt > av_size) {
2662 goto bad_param;
2663 }
2664
2665 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2666 }
2667
2668 if (state->total_param) {
2669 /* Can't use talloc here, the core routines do realloc on the
2670 * params and data. */
2671 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2672 DEBUG(0,("reply_nttrans: param malloc fail for %u "
2673 "bytes !\n", (unsigned int)state->total_param));
2674 SAFE_FREE(state->data);
2675 TALLOC_FREE(state);
2676 reply_doserror(req, ERRDOS, ERRnomem);
2677 END_PROFILE(SMBnttrans);
2678 return;
2679 }
2680
2681 if (pscnt > state->total_param ||
2682 psoff+pscnt < psoff) {
2683 goto bad_param;
2684 }
2685
2686 if (psoff > av_size ||
2687 pscnt > av_size ||
2688 psoff+pscnt > av_size) {
2689 goto bad_param;
2690 }
2691
2692 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2693 }
2694
2695 state->received_data = dscnt;
2696 state->received_param = pscnt;
2697
2698 if(state->setup_count > 0) {
2699 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2700 state->setup_count));
2701 state->setup = (uint16 *)TALLOC(state, state->setup_count);
2702 if (state->setup == NULL) {
2703 DEBUG(0,("reply_nttrans : Out of memory\n"));
2704 SAFE_FREE(state->data);
2705 SAFE_FREE(state->param);
2706 TALLOC_FREE(state);
2707 reply_doserror(req, ERRDOS, ERRnomem);
2708 END_PROFILE(SMBnttrans);
2709 return;
2710 }
2711
2712 if ((smb_nt_SetupStart + state->setup_count < smb_nt_SetupStart) ||
2713 (smb_nt_SetupStart + state->setup_count < state->setup_count)) {
2714 goto bad_param;
2715 }
2716 if (smb_nt_SetupStart + state->setup_count > size) {
2717 goto bad_param;
2718 }
2719
2720 memcpy( state->setup, &req->inbuf[smb_nt_SetupStart],
2721 state->setup_count);
2722 dump_data(10, (uint8 *)state->setup, state->setup_count);
2723 }
2724
2725 if ((state->received_data == state->total_data) &&
2726 (state->received_param == state->total_param)) {
2727 handle_nttrans(conn, state, req);
2728 SAFE_FREE(state->param);
2729 SAFE_FREE(state->data);
2730 TALLOC_FREE(state);
2731 END_PROFILE(SMBnttrans);
2732 return;
2733 }
2734
2735 DLIST_ADD(conn->pending_trans, state);
2736
2737 /* We need to send an interim response then receive the rest
2738 of the parameter/data bytes */
2739 reply_outbuf(req, 0, 0);
2740 show_msg((char *)req->outbuf);
2741 END_PROFILE(SMBnttrans);
2742 return;
2743
2744 bad_param:
2745
2746 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2747 SAFE_FREE(state->data);
2748 SAFE_FREE(state->param);
2749 TALLOC_FREE(state);
2750 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2751 END_PROFILE(SMBnttrans);
2752 return;
2753 }
2754
2755 /****************************************************************************
2756 Reply to a SMBnttranss
2757 ****************************************************************************/
2758
2759 void reply_nttranss(struct smb_request *req)
2760 {
2761 connection_struct *conn = req->conn;
2762 uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
2763 struct trans_state *state;
2764 uint32_t av_size;
2765 uint32_t size;
2766
2767 START_PROFILE(SMBnttranss);
2768
2769 show_msg((char *)req->inbuf);
2770
2771 if (req->wct < 18) {
2772 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2773 END_PROFILE(SMBnttranss);
2774 return;
2775 }
2776
2777 for (state = conn->pending_trans; state != NULL;
2778 state = state->next) {
2779 if (state->mid == req->mid) {
2780 break;
2781 }
2782 }
2783
2784 if ((state == NULL) || (state->cmd != SMBnttrans)) {
2785 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2786 END_PROFILE(SMBnttranss);
2787 return;
2788 }
2789
2790 /* Revise state->total_param and state->total_data in case they have
2791 changed downwards */
2792 if (IVAL(req->inbuf, smb_nts_TotalParameterCount)
2793 < state->total_param) {
2794 state->total_param = IVAL(req->inbuf,
2795 smb_nts_TotalParameterCount);
2796 }
2797 if (IVAL(req->inbuf, smb_nts_TotalDataCount) < state->total_data) {
2798 state->total_data = IVAL(req->inbuf, smb_nts_TotalDataCount);
2799 }
2800
2801 size = smb_len(req->inbuf) + 4;
2802 av_size = smb_len(req->inbuf);
2803
2804 pcnt = IVAL(req->inbuf,smb_nts_ParameterCount);
2805 poff = IVAL(req->inbuf, smb_nts_ParameterOffset);
2806 pdisp = IVAL(req->inbuf, smb_nts_ParameterDisplacement);
2807
2808 dcnt = IVAL(req->inbuf, smb_nts_DataCount);
2809 ddisp = IVAL(req->inbuf, smb_nts_DataDisplacement);
2810 doff = IVAL(req->inbuf, smb_nts_DataOffset);
2811
2812 state->received_param += pcnt;
2813 state->received_data += dcnt;
2814
2815 if ((state->received_data > state->total_data) ||
2816 (state->received_param > state->total_param))
2817 goto bad_param;
2818
2819 if (pcnt) {
2820 if (pdisp > state->total_param ||
2821 pcnt > state->total_param ||
2822 pdisp+pcnt > state->total_param ||
2823 pdisp+pcnt < pdisp) {
2824 goto bad_param;
2825 }
2826
2827 if (poff > av_size ||
2828 pcnt > av_size ||
2829 poff+pcnt > av_size ||
2830 poff+pcnt < poff) {
2831 goto bad_param;
2832 }
2833
2834 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,
2835 pcnt);
2836 }
2837
2838 if (dcnt) {
2839 if (ddisp > state->total_data ||
2840 dcnt > state->total_data ||
2841 ddisp+dcnt > state->total_data ||
2842 ddisp+dcnt < ddisp) {
2843 goto bad_param;
2844 }
2845
2846 if (ddisp > av_size ||
2847 dcnt > av_size ||
2848 ddisp+dcnt > av_size ||
2849 ddisp+dcnt < ddisp) {
2850 goto bad_param;
2851 }
2852
2853 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,
2854 dcnt);
2855 }
2856
2857 if ((state->received_param < state->total_param) ||
2858 (state->received_data < state->total_data)) {
2859 END_PROFILE(SMBnttranss);
2860 return;
2861 }
2862
2863 /*
2864 * construct_reply_common will copy smb_com from inbuf to
2865 * outbuf. SMBnttranss is wrong here.
2866 */
2867 SCVAL(req->inbuf,smb_com,SMBnttrans);
2868
2869 handle_nttrans(conn, state, req);
2870
2871 DLIST_REMOVE(conn->pending_trans, state);
2872 SAFE_FREE(state->data);
2873 SAFE_FREE(state->param);
2874 TALLOC_FREE(state);
2875 END_PROFILE(SMBnttranss);
2876 return;
2877
2878 bad_param:
2879
2880 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
2881 DLIST_REMOVE(conn->pending_trans, state);
2882 SAFE_FREE(state->data);
2883 SAFE_FREE(state->param);
2884 TALLOC_FREE(state);
2885 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2886 END_PROFILE(SMBnttranss);
2887 return;
2888 }
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