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Do not crash in ctdbd_traverse if ctdbd is not around
[Samba/bb.git] / source / smbd / nttrans.c
blob0bd37a5d011d9b20a1558e0a4e673467799ba517
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 const struct generic_mapping file_generic_mapping;
26
27 static char *nttrans_realloc(char **ptr, size_t size)
28 {
29 if (ptr==NULL) {
30 smb_panic("nttrans_realloc() called with NULL ptr");
31 }
32
33 *ptr = (char *)SMB_REALLOC(*ptr, size);
34 if(*ptr == NULL) {
35 return NULL;
36 }
37 memset(*ptr,'\0',size);
38 return *ptr;
39 }
40
41 /****************************************************************************
42 Send the required number of replies back.
43 We assume all fields other than the data fields are
44 set correctly for the type of call.
45 HACK ! Always assumes smb_setup field is zero.
46 ****************************************************************************/
47
48 void send_nt_replies(connection_struct *conn,
49 struct smb_request *req, NTSTATUS nt_error,
50 char *params, int paramsize,
51 char *pdata, int datasize)
52 {
53 int data_to_send = datasize;
54 int params_to_send = paramsize;
55 int useable_space;
56 char *pp = params;
57 char *pd = pdata;
58 int params_sent_thistime, data_sent_thistime, total_sent_thistime;
59 int alignment_offset = 3;
60 int data_alignment_offset = 0;
61
62 /*
63 * If there genuinely are no parameters or data to send just send
64 * the empty packet.
65 */
66
67 if(params_to_send == 0 && data_to_send == 0) {
68 reply_outbuf(req, 18, 0);
69 show_msg((char *)req->outbuf);
70 return;
71 }
72
73 /*
74 * When sending params and data ensure that both are nicely aligned.
75 * Only do this alignment when there is also data to send - else
76 * can cause NT redirector problems.
77 */
78
79 if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
80 data_alignment_offset = 4 - (params_to_send % 4);
81 }
82
83 /*
84 * Space is bufsize minus Netbios over TCP header minus SMB header.
85 * The alignment_offset is to align the param bytes on a four byte
86 * boundary (2 bytes for data len, one byte pad).
87 * NT needs this to work correctly.
88 */
89
90 useable_space = max_send - (smb_size
91 + 2 * 18 /* wct */
92 + alignment_offset
93 + data_alignment_offset);
94
95 if (useable_space < 0) {
96 DEBUG(0, ("send_nt_replies failed sanity useable_space "
97 "= %d!!!", useable_space));
98 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
99 }
100
101 while (params_to_send || data_to_send) {
102
103 /*
104 * Calculate whether we will totally or partially fill this packet.
105 */
106
107 total_sent_thistime = params_to_send + data_to_send;
108
109 /*
110 * We can never send more than useable_space.
111 */
112
113 total_sent_thistime = MIN(total_sent_thistime, useable_space);
114
115 reply_outbuf(req, 18,
116 total_sent_thistime + alignment_offset
117 + data_alignment_offset);
118
119 /*
120 * Set total params and data to be sent.
121 */
122
123 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
124 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
125
126 /*
127 * Calculate how many parameters and data we can fit into
128 * this packet. Parameters get precedence.
129 */
130
131 params_sent_thistime = MIN(params_to_send,useable_space);
132 data_sent_thistime = useable_space - params_sent_thistime;
133 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
134
135 SIVAL(req->outbuf, smb_ntr_ParameterCount,
136 params_sent_thistime);
137
138 if(params_sent_thistime == 0) {
139 SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
140 SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
141 } else {
142 /*
143 * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
144 * parameter bytes, however the first 4 bytes of outbuf are
145 * the Netbios over TCP header. Thus use smb_base() to subtract
146 * them from the calculation.
147 */
148
149 SIVAL(req->outbuf,smb_ntr_ParameterOffset,
150 ((smb_buf(req->outbuf)+alignment_offset)
151 - smb_base(req->outbuf)));
152 /*
153 * Absolute displacement of param bytes sent in this packet.
154 */
155
156 SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
157 pp - params);
158 }
159
160 /*
161 * Deal with the data portion.
162 */
163
164 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
165
166 if(data_sent_thistime == 0) {
167 SIVAL(req->outbuf,smb_ntr_DataOffset,0);
168 SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
169 } else {
170 /*
171 * The offset of the data bytes is the offset of the
172 * parameter bytes plus the number of parameters being sent this time.
173 */
174
175 SIVAL(req->outbuf, smb_ntr_DataOffset,
176 ((smb_buf(req->outbuf)+alignment_offset) -
177 smb_base(req->outbuf))
178 + params_sent_thistime + data_alignment_offset);
179 SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
180 }
181
182 /*
183 * Copy the param bytes into the packet.
184 */
185
186 if(params_sent_thistime) {
187 if (alignment_offset != 0) {
188 memset(smb_buf(req->outbuf), 0,
189 alignment_offset);
190 }
191 memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
192 params_sent_thistime);
193 }
194
195 /*
196 * Copy in the data bytes
197 */
198
199 if(data_sent_thistime) {
200 if (data_alignment_offset != 0) {
201 memset((smb_buf(req->outbuf)+alignment_offset+
202 params_sent_thistime), 0,
203 data_alignment_offset);
204 }
205 memcpy(smb_buf(req->outbuf)+alignment_offset
206 +params_sent_thistime+data_alignment_offset,
207 pd,data_sent_thistime);
208 }
209
210 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
211 params_sent_thistime, data_sent_thistime, useable_space));
212 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
213 params_to_send, data_to_send, paramsize, datasize));
214
215 if (NT_STATUS_V(nt_error)) {
216 error_packet_set((char *)req->outbuf,
217 0, 0, nt_error,
218 __LINE__,__FILE__);
219 }
220
221 /* Send the packet */
222 show_msg((char *)req->outbuf);
223 if (!srv_send_smb(smbd_server_fd(),
224 (char *)req->outbuf,
225 IS_CONN_ENCRYPTED(conn))) {
226 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
227 }
228
229 TALLOC_FREE(req->outbuf);
230
231 pp += params_sent_thistime;
232 pd += data_sent_thistime;
233
234 params_to_send -= params_sent_thistime;
235 data_to_send -= data_sent_thistime;
236
237 /*
238 * Sanity check
239 */
240
241 if(params_to_send < 0 || data_to_send < 0) {
242 DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
243 params_to_send, data_to_send));
244 exit_server_cleanly("send_nt_replies: internal error");
245 }
246 }
247 }
248
249 /****************************************************************************
250 Is it an NTFS stream name ?
251 An NTFS file name is <path>.<extention>:<stream name>:<stream type>
252 $DATA can be used as both a stream name and a stream type. A missing stream
253 name or type implies $DATA.
254 ****************************************************************************/
255
256 bool is_ntfs_stream_name(const char *fname)
257 {
258 if (lp_posix_pathnames()) {
259 return False;
260 }
261 return (strchr_m(fname, ':') != NULL) ? True : False;
262 }
263
264 /****************************************************************************
265 Reply to an NT create and X call on a pipe
266 ****************************************************************************/
267
268 static void nt_open_pipe(char *fname, connection_struct *conn,
269 struct smb_request *req, int *ppnum)
270 {
271 smb_np_struct *p = NULL;
272
273 DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
274
275 /* See if it is one we want to handle. */
276
277 if (!is_known_pipename(fname)) {
278 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
279 ERRDOS, ERRbadpipe);
280 return;
281 }
282
283 /* Strip \\ off the name. */
284 fname++;
285
286 DEBUG(3,("nt_open_pipe: Known pipe %s opening.\n", fname));
287
288 p = open_rpc_pipe_p(fname, conn, req->vuid);
289 if (!p) {
290 reply_doserror(req, ERRSRV, ERRnofids);
291 return;
292 }
293
294 /* TODO: Add pipe to db */
295
296 if ( !store_pipe_opendb( p ) ) {
297 DEBUG(3,("nt_open_pipe: failed to store %s pipe open.\n", fname));
298 }
299
300 *ppnum = p->pnum;
301 return;
302 }
303
304 /****************************************************************************
305 Reply to an NT create and X call for pipes.
306 ****************************************************************************/
307
308 static void do_ntcreate_pipe_open(connection_struct *conn,
309 struct smb_request *req)
310 {
311 char *fname = NULL;
312 int pnum = -1;
313 char *p = NULL;
314 uint32 flags = IVAL(req->inbuf,smb_ntcreate_Flags);
315 TALLOC_CTX *ctx = talloc_tos();
316
317 srvstr_pull_buf_talloc(ctx, (char *)req->inbuf, req->flags2, &fname,
318 smb_buf(req->inbuf), STR_TERMINATE);
319
320 if (!fname) {
321 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
322 ERRDOS, ERRbadpipe);
323 return;
324 }
325 nt_open_pipe(fname, conn, req, &pnum);
326
327 if (req->outbuf) {
328 /* error reply */
329 return;
330 }
331
332 /*
333 * Deal with pipe return.
334 */
335
336 if (flags & EXTENDED_RESPONSE_REQUIRED) {
337 /* This is very strange. We
338 * return 50 words, but only set
339 * the wcnt to 42 ? It's definately
340 * what happens on the wire....
341 */
342 reply_outbuf(req, 50, 0);
343 SCVAL(req->outbuf,smb_wct,42);
344 } else {
345 reply_outbuf(req, 34, 0);
346 }
347
348 p = (char *)req->outbuf + smb_vwv2;
349 p++;
350 SSVAL(p,0,pnum);
351 p += 2;
352 SIVAL(p,0,FILE_WAS_OPENED);
353 p += 4;
354 p += 32;
355 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
356 p += 20;
357 /* File type. */
358 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
359 /* Device state. */
360 SSVAL(p,2, 0x5FF); /* ? */
361 p += 4;
362
363 if (flags & EXTENDED_RESPONSE_REQUIRED) {
364 p += 25;
365 SIVAL(p,0,FILE_GENERIC_ALL);
366 /*
367 * For pipes W2K3 seems to return
368 * 0x12019B next.
369 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
370 */
371 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
372 }
373
374 DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
375
376 chain_reply(req);
377 }
378
379 /****************************************************************************
380 Reply to an NT create and X call.
381 ****************************************************************************/
382
383 void reply_ntcreate_and_X(struct smb_request *req)
384 {
385 connection_struct *conn = req->conn;
386 char *fname = NULL;
387 uint32 flags;
388 uint32 access_mask;
389 uint32 file_attributes;
390 uint32 share_access;
391 uint32 create_disposition;
392 uint32 create_options;
393 uint16 root_dir_fid;
394 SMB_BIG_UINT allocation_size;
395 /* Breakout the oplock request bits so we can set the
396 reply bits separately. */
397 uint32 fattr=0;
398 SMB_OFF_T file_len = 0;
399 SMB_STRUCT_STAT sbuf;
400 int info = 0;
401 files_struct *fsp = NULL;
402 char *p = NULL;
403 struct timespec c_timespec;
404 struct timespec a_timespec;
405 struct timespec m_timespec;
406 NTSTATUS status;
407 int oplock_request;
408 uint8_t oplock_granted = NO_OPLOCK_RETURN;
409 TALLOC_CTX *ctx = talloc_tos();
410
411 START_PROFILE(SMBntcreateX);
412
413 if (req->wct < 24) {
414 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
415 return;
416 }
417
418 flags = IVAL(req->inbuf,smb_ntcreate_Flags);
419 access_mask = IVAL(req->inbuf,smb_ntcreate_DesiredAccess);
420 file_attributes = IVAL(req->inbuf,smb_ntcreate_FileAttributes);
421 share_access = IVAL(req->inbuf,smb_ntcreate_ShareAccess);
422 create_disposition = IVAL(req->inbuf,smb_ntcreate_CreateDisposition);
423 create_options = IVAL(req->inbuf,smb_ntcreate_CreateOptions);
424 root_dir_fid = (uint16)IVAL(req->inbuf,smb_ntcreate_RootDirectoryFid);
425
426 allocation_size = (SMB_BIG_UINT)IVAL(req->inbuf,
427 smb_ntcreate_AllocationSize);
428 #ifdef LARGE_SMB_OFF_T
429 allocation_size |= (((SMB_BIG_UINT)IVAL(
430 req->inbuf,
431 smb_ntcreate_AllocationSize + 4)) << 32);
432 #endif
433
434 srvstr_get_path(ctx, (char *)req->inbuf, req->flags2, &fname,
435 smb_buf(req->inbuf), 0, STR_TERMINATE, &status);
436
437 if (!NT_STATUS_IS_OK(status)) {
438 reply_nterror(req, status);
439 END_PROFILE(SMBntcreateX);
440 return;
441 }
442
443 DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
444 "file_attributes = 0x%x, share_access = 0x%x, "
445 "create_disposition = 0x%x create_options = 0x%x "
446 "root_dir_fid = 0x%x, fname = %s\n",
447 (unsigned int)flags,
448 (unsigned int)access_mask,
449 (unsigned int)file_attributes,
450 (unsigned int)share_access,
451 (unsigned int)create_disposition,
452 (unsigned int)create_options,
453 (unsigned int)root_dir_fid,
454 fname));
455
456 /*
457 * we need to remove ignored bits when they come directly from the client
458 * because we reuse some of them for internal stuff
459 */
460 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
461
462 /*
463 * If it's an IPC, use the pipe handler.
464 */
465
466 if (IS_IPC(conn)) {
467 if (lp_nt_pipe_support()) {
468 do_ntcreate_pipe_open(conn, req);
469 END_PROFILE(SMBntcreateX);
470 return;
471 }
472 reply_doserror(req, ERRDOS, ERRnoaccess);
473 END_PROFILE(SMBntcreateX);
474 return;
475 }
476
477 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
478 if (oplock_request) {
479 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
480 ? BATCH_OPLOCK : 0;
481 }
482
483 status = create_file(conn, req, root_dir_fid, fname,
484 access_mask, share_access, create_disposition,
485 create_options, file_attributes, oplock_request,
486 allocation_size, NULL, NULL, &fsp, &info, &sbuf);
487
488 if (!NT_STATUS_IS_OK(status)) {
489 if (open_was_deferred(req->mid)) {
490 /* We have re-scheduled this call, no error. */
491 END_PROFILE(SMBntcreateX);
492 return;
493 }
494 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_COLLISION)) {
495 reply_botherror(req, status, ERRDOS, ERRfilexists);
496 }
497 else {
498 reply_nterror(req, status);
499 }
500 END_PROFILE(SMBntcreateX);
501 return;
502 }
503
504 /*
505 * If the caller set the extended oplock request bit
506 * and we granted one (by whatever means) - set the
507 * correct bit for extended oplock reply.
508 */
509
510 if (oplock_request &&
511 (lp_fake_oplocks(SNUM(conn))
512 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
513
514 /*
515 * Exclusive oplock granted
516 */
517
518 if (flags & REQUEST_BATCH_OPLOCK) {
519 oplock_granted = BATCH_OPLOCK_RETURN;
520 } else {
521 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
522 }
523 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
524 oplock_granted = LEVEL_II_OPLOCK_RETURN;
525 } else {
526 oplock_granted = NO_OPLOCK_RETURN;
527 }
528
529 file_len = sbuf.st_size;
530 fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
531 if (fattr == 0) {
532 fattr = FILE_ATTRIBUTE_NORMAL;
533 }
534
535 if (flags & EXTENDED_RESPONSE_REQUIRED) {
536 /* This is very strange. We
537 * return 50 words, but only set
538 * the wcnt to 42 ? It's definately
539 * what happens on the wire....
540 */
541 reply_outbuf(req, 50, 0);
542 SCVAL(req->outbuf,smb_wct,42);
543 } else {
544 reply_outbuf(req, 34, 0);
545 }
546
547 p = (char *)req->outbuf + smb_vwv2;
548
549 SCVAL(p, 0, oplock_granted);
550
551 p++;
552 SSVAL(p,0,fsp->fnum);
553 p += 2;
554 if ((create_disposition == FILE_SUPERSEDE)
555 && (info == FILE_WAS_OVERWRITTEN)) {
556 SIVAL(p,0,FILE_WAS_SUPERSEDED);
557 } else {
558 SIVAL(p,0,info);
559 }
560 p += 4;
561
562 /* Create time. */
563 c_timespec = get_create_timespec(
564 &sbuf,lp_fake_dir_create_times(SNUM(conn)));
565 a_timespec = get_atimespec(&sbuf);
566 m_timespec = get_mtimespec(&sbuf);
567
568 if (lp_dos_filetime_resolution(SNUM(conn))) {
569 dos_filetime_timespec(&c_timespec);
570 dos_filetime_timespec(&a_timespec);
571 dos_filetime_timespec(&m_timespec);
572 }
573
574 put_long_date_timespec(p, c_timespec); /* create time. */
575 p += 8;
576 put_long_date_timespec(p, a_timespec); /* access time */
577 p += 8;
578 put_long_date_timespec(p, m_timespec); /* write time */
579 p += 8;
580 put_long_date_timespec(p, m_timespec); /* change time */
581 p += 8;
582 SIVAL(p,0,fattr); /* File Attributes. */
583 p += 4;
584 SOFF_T(p, 0, get_allocation_size(conn,fsp,&sbuf));
585 p += 8;
586 SOFF_T(p,0,file_len);
587 p += 8;
588 if (flags & EXTENDED_RESPONSE_REQUIRED) {
589 SSVAL(p,2,0x7);
590 }
591 p += 4;
592 SCVAL(p,0,fsp->is_directory ? 1 : 0);
593
594 if (flags & EXTENDED_RESPONSE_REQUIRED) {
595 uint32 perms = 0;
596 p += 25;
597 if (fsp->is_directory
598 || can_write_to_file(conn, fsp->fsp_name, &sbuf)) {
599 perms = FILE_GENERIC_ALL;
600 } else {
601 perms = FILE_GENERIC_READ|FILE_EXECUTE;
602 }
603 SIVAL(p,0,perms);
604 }
605
606 DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
607 fsp->fnum, fsp->fsp_name));
608
609 chain_reply(req);
610 END_PROFILE(SMBntcreateX);
611 return;
612 }
613
614 /****************************************************************************
615 Reply to a NT_TRANSACT_CREATE call to open a pipe.
616 ****************************************************************************/
617
618 static void do_nt_transact_create_pipe(connection_struct *conn,
619 struct smb_request *req,
620 uint16 **ppsetup, uint32 setup_count,
621 char **ppparams, uint32 parameter_count,
622 char **ppdata, uint32 data_count)
623 {
624 char *fname = NULL;
625 char *params = *ppparams;
626 int pnum = -1;
627 char *p = NULL;
628 NTSTATUS status;
629 size_t param_len;
630 uint32 flags;
631 TALLOC_CTX *ctx = talloc_tos();
632
633 /*
634 * Ensure minimum number of parameters sent.
635 */
636
637 if(parameter_count < 54) {
638 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
639 reply_doserror(req, ERRDOS, ERRnoaccess);
640 return;
641 }
642
643 flags = IVAL(params,0);
644
645 srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
646 parameter_count-53, STR_TERMINATE,
647 &status);
648 if (!NT_STATUS_IS_OK(status)) {
649 reply_nterror(req, status);
650 return;
651 }
652
653 nt_open_pipe(fname, conn, req, &pnum);
654
655 if (req->outbuf) {
656 /* Error return */
657 return;
658 }
659
660 /* Realloc the size of parameters and data we will return */
661 if (flags & EXTENDED_RESPONSE_REQUIRED) {
662 /* Extended response is 32 more byyes. */
663 param_len = 101;
664 } else {
665 param_len = 69;
666 }
667 params = nttrans_realloc(ppparams, param_len);
668 if(params == NULL) {
669 reply_doserror(req, ERRDOS, ERRnomem);
670 return;
671 }
672
673 p = params;
674 SCVAL(p,0,NO_OPLOCK_RETURN);
675
676 p += 2;
677 SSVAL(p,0,pnum);
678 p += 2;
679 SIVAL(p,0,FILE_WAS_OPENED);
680 p += 8;
681
682 p += 32;
683 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
684 p += 20;
685 /* File type. */
686 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
687 /* Device state. */
688 SSVAL(p,2, 0x5FF); /* ? */
689 p += 4;
690
691 if (flags & EXTENDED_RESPONSE_REQUIRED) {
692 p += 25;
693 SIVAL(p,0,FILE_GENERIC_ALL);
694 /*
695 * For pipes W2K3 seems to return
696 * 0x12019B next.
697 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
698 */
699 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
700 }
701
702 DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
703
704 /* Send the required number of replies */
705 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
706
707 return;
708 }
709
710 /****************************************************************************
711 Internal fn to set security descriptors.
712 ****************************************************************************/
713
714 static NTSTATUS set_sd(files_struct *fsp, uint8 *data, uint32 sd_len,
715 uint32 security_info_sent)
716 {
717 SEC_DESC *psd = NULL;
718 NTSTATUS status;
719
720 if (sd_len == 0 || !lp_nt_acl_support(SNUM(fsp->conn))) {
721 return NT_STATUS_OK;
722 }
723
724 status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
725
726 if (!NT_STATUS_IS_OK(status)) {
727 return status;
728 }
729
730 if (psd->owner_sid == NULL) {
731 security_info_sent &= ~OWNER_SECURITY_INFORMATION;
732 }
733 if (psd->group_sid == NULL) {
734 security_info_sent &= ~GROUP_SECURITY_INFORMATION;
735 }
736
737 /* Convert all the generic bits. */
738 security_acl_map_generic(psd->dacl, &file_generic_mapping);
739 security_acl_map_generic(psd->sacl, &file_generic_mapping);
740
741 if (DEBUGLEVEL >= 10) {
742 DEBUG(10,("set_sd for file %s\n", fsp->fsp_name ));
743 NDR_PRINT_DEBUG(security_descriptor, psd);
744 }
745
746 status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
747
748 TALLOC_FREE(psd);
749
750 return status;
751 }
752
753 /****************************************************************************
754 Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
755 ****************************************************************************/
756
757 static struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
758 {
759 struct ea_list *ea_list_head = NULL;
760 size_t offset = 0;
761
762 if (data_size < 4) {
763 return NULL;
764 }
765
766 while (offset + 4 <= data_size) {
767 size_t next_offset = IVAL(pdata,offset);
768 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
769
770 if (!eal) {
771 return NULL;
772 }
773
774 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
775 if (next_offset == 0) {
776 break;
777 }
778 offset += next_offset;
779 }
780
781 return ea_list_head;
782 }
783
784 /****************************************************************************
785 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
786 ****************************************************************************/
787
788 static void call_nt_transact_create(connection_struct *conn,
789 struct smb_request *req,
790 uint16 **ppsetup, uint32 setup_count,
791 char **ppparams, uint32 parameter_count,
792 char **ppdata, uint32 data_count,
793 uint32 max_data_count)
794 {
795 char *fname = NULL;
796 char *params = *ppparams;
797 char *data = *ppdata;
798 /* Breakout the oplock request bits so we can set the reply bits separately. */
799 uint32 fattr=0;
800 SMB_OFF_T file_len = 0;
801 SMB_STRUCT_STAT sbuf;
802 int info = 0;
803 files_struct *fsp = NULL;
804 char *p = NULL;
805 uint32 flags;
806 uint32 access_mask;
807 uint32 file_attributes;
808 uint32 share_access;
809 uint32 create_disposition;
810 uint32 create_options;
811 uint32 sd_len;
812 struct security_descriptor *sd = NULL;
813 uint32 ea_len;
814 uint16 root_dir_fid;
815 struct timespec c_timespec;
816 struct timespec a_timespec;
817 struct timespec m_timespec;
818 struct ea_list *ea_list = NULL;
819 NTSTATUS status;
820 size_t param_len;
821 SMB_BIG_UINT allocation_size;
822 int oplock_request;
823 uint8_t oplock_granted;
824 TALLOC_CTX *ctx = talloc_tos();
825
826 DEBUG(5,("call_nt_transact_create\n"));
827
828 /*
829 * If it's an IPC, use the pipe handler.
830 */
831
832 if (IS_IPC(conn)) {
833 if (lp_nt_pipe_support()) {
834 do_nt_transact_create_pipe(
835 conn, req,
836 ppsetup, setup_count,
837 ppparams, parameter_count,
838 ppdata, data_count);
839 return;
840 }
841 reply_doserror(req, ERRDOS, ERRnoaccess);
842 return;
843 }
844
845 /*
846 * Ensure minimum number of parameters sent.
847 */
848
849 if(parameter_count < 54) {
850 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
851 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
852 return;
853 }
854
855 flags = IVAL(params,0);
856 access_mask = IVAL(params,8);
857 file_attributes = IVAL(params,20);
858 share_access = IVAL(params,24);
859 create_disposition = IVAL(params,28);
860 create_options = IVAL(params,32);
861 sd_len = IVAL(params,36);
862 ea_len = IVAL(params,40);
863 root_dir_fid = (uint16)IVAL(params,4);
864 allocation_size = (SMB_BIG_UINT)IVAL(params,12);
865 #ifdef LARGE_SMB_OFF_T
866 allocation_size |= (((SMB_BIG_UINT)IVAL(params,16)) << 32);
867 #endif
868
869 /*
870 * we need to remove ignored bits when they come directly from the client
871 * because we reuse some of them for internal stuff
872 */
873 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
874
875 /* Ensure the data_len is correct for the sd and ea values given. */
876 if ((ea_len + sd_len > data_count)
877 || (ea_len > data_count) || (sd_len > data_count)
878 || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
879 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
880 "%u, data_count = %u\n", (unsigned int)ea_len,
881 (unsigned int)sd_len, (unsigned int)data_count));
882 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
883 return;
884 }
885
886 if (sd_len) {
887 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
888 sd_len));
889
890 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
891 &sd);
892 if (!NT_STATUS_IS_OK(status)) {
893 DEBUG(10, ("call_nt_transact_create: "
894 "unmarshall_sec_desc failed: %s\n",
895 nt_errstr(status)));
896 reply_nterror(req, status);
897 return;
898 }
899 }
900
901 if (ea_len) {
902 if (!lp_ea_support(SNUM(conn))) {
903 DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
904 "EA's not supported.\n",
905 (unsigned int)ea_len));
906 reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
907 return;
908 }
909
910 if (ea_len < 10) {
911 DEBUG(10,("call_nt_transact_create - ea_len = %u - "
912 "too small (should be more than 10)\n",
913 (unsigned int)ea_len ));
914 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
915 return;
916 }
917
918 /* We have already checked that ea_len <= data_count here. */
919 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
920 ea_len);
921 if (ea_list == NULL) {
922 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
923 return;
924 }
925 }
926
927 srvstr_get_path(ctx, params, req->flags2, &fname,
928 params+53, parameter_count-53,
929 STR_TERMINATE, &status);
930 if (!NT_STATUS_IS_OK(status)) {
931 reply_nterror(req, status);
932 return;
933 }
934
935 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
936 if (oplock_request) {
937 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
938 ? BATCH_OPLOCK : 0;
939 }
940
941 status = create_file(conn, req, root_dir_fid, fname,
942 access_mask, share_access, create_disposition,
943 create_options, file_attributes, oplock_request,
944 allocation_size, sd, ea_list, &fsp, &info, &sbuf);
945
946 if(!NT_STATUS_IS_OK(status)) {
947 if (open_was_deferred(req->mid)) {
948 /* We have re-scheduled this call, no error. */
949 return;
950 }
951 reply_openerror(req, status);
952 return;
953 }
954
955 /*
956 * If the caller set the extended oplock request bit
957 * and we granted one (by whatever means) - set the
958 * correct bit for extended oplock reply.
959 */
960
961 if (oplock_request &&
962 (lp_fake_oplocks(SNUM(conn))
963 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
964
965 /*
966 * Exclusive oplock granted
967 */
968
969 if (flags & REQUEST_BATCH_OPLOCK) {
970 oplock_granted = BATCH_OPLOCK_RETURN;
971 } else {
972 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
973 }
974 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
975 oplock_granted = LEVEL_II_OPLOCK_RETURN;
976 } else {
977 oplock_granted = NO_OPLOCK_RETURN;
978 }
979
980 file_len = sbuf.st_size;
981 fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
982 if (fattr == 0) {
983 fattr = FILE_ATTRIBUTE_NORMAL;
984 }
985
986 /* Realloc the size of parameters and data we will return */
987 if (flags & EXTENDED_RESPONSE_REQUIRED) {
988 /* Extended response is 32 more byyes. */
989 param_len = 101;
990 } else {
991 param_len = 69;
992 }
993 params = nttrans_realloc(ppparams, param_len);
994 if(params == NULL) {
995 reply_doserror(req, ERRDOS, ERRnomem);
996 return;
997 }
998
999 p = params;
1000 SCVAL(p, 0, oplock_granted);
1001
1002 p += 2;
1003 SSVAL(p,0,fsp->fnum);
1004 p += 2;
1005 if ((create_disposition == FILE_SUPERSEDE)
1006 && (info == FILE_WAS_OVERWRITTEN)) {
1007 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1008 } else {
1009 SIVAL(p,0,info);
1010 }
1011 p += 8;
1012
1013 /* Create time. */
1014 c_timespec = get_create_timespec(
1015 &sbuf,lp_fake_dir_create_times(SNUM(conn)));
1016 a_timespec = get_atimespec(&sbuf);
1017 m_timespec = get_mtimespec(&sbuf);
1018
1019 if (lp_dos_filetime_resolution(SNUM(conn))) {
1020 dos_filetime_timespec(&c_timespec);
1021 dos_filetime_timespec(&a_timespec);
1022 dos_filetime_timespec(&m_timespec);
1023 }
1024
1025 put_long_date_timespec(p, c_timespec); /* create time. */
1026 p += 8;
1027 put_long_date_timespec(p, a_timespec); /* access time */
1028 p += 8;
1029 put_long_date_timespec(p, m_timespec); /* write time */
1030 p += 8;
1031 put_long_date_timespec(p, m_timespec); /* change time */
1032 p += 8;
1033 SIVAL(p,0,fattr); /* File Attributes. */
1034 p += 4;
1035 SOFF_T(p, 0, get_allocation_size(conn,fsp,&sbuf));
1036 p += 8;
1037 SOFF_T(p,0,file_len);
1038 p += 8;
1039 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1040 SSVAL(p,2,0x7);
1041 }
1042 p += 4;
1043 SCVAL(p,0,fsp->is_directory ? 1 : 0);
1044
1045 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1046 uint32 perms = 0;
1047 p += 25;
1048 if (fsp->is_directory
1049 || can_write_to_file(conn, fsp->fsp_name, &sbuf)) {
1050 perms = FILE_GENERIC_ALL;
1051 } else {
1052 perms = FILE_GENERIC_READ|FILE_EXECUTE;
1053 }
1054 SIVAL(p,0,perms);
1055 }
1056
1057 DEBUG(5,("call_nt_transact_create: open name = %s\n", fsp->fsp_name));
1058
1059 /* Send the required number of replies */
1060 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1061
1062 return;
1063 }
1064
1065 /****************************************************************************
1066 Reply to a NT CANCEL request.
1067 conn POINTER CAN BE NULL HERE !
1068 ****************************************************************************/
1069
1070 void reply_ntcancel(struct smb_request *req)
1071 {
1072 /*
1073 * Go through and cancel any pending change notifies.
1074 */
1075
1076 START_PROFILE(SMBntcancel);
1077 remove_pending_change_notify_requests_by_mid(req->mid);
1078 remove_pending_lock_requests_by_mid(req->mid);
1079 srv_cancel_sign_response(req->mid, true);
1080
1081 DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", req->mid));
1082
1083 END_PROFILE(SMBntcancel);
1084 return;
1085 }
1086
1087 /****************************************************************************
1088 Copy a file.
1089 ****************************************************************************/
1090
1091 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1092 connection_struct *conn,
1093 struct smb_request *req,
1094 const char *oldname_in,
1095 const char *newname_in,
1096 uint32 attrs)
1097 {
1098 SMB_STRUCT_STAT sbuf1, sbuf2;
1099 char *oldname = NULL;
1100 char *newname = NULL;
1101 char *last_component_oldname = NULL;
1102 char *last_component_newname = NULL;
1103 files_struct *fsp1,*fsp2;
1104 uint32 fattr;
1105 int info;
1106 SMB_OFF_T ret=-1;
1107 NTSTATUS status = NT_STATUS_OK;
1108
1109 ZERO_STRUCT(sbuf1);
1110 ZERO_STRUCT(sbuf2);
1111
1112 if (!CAN_WRITE(conn)) {
1113 return NT_STATUS_MEDIA_WRITE_PROTECTED;
1114 }
1115
1116 status = unix_convert(ctx, conn, oldname_in, False, &oldname,
1117 &last_component_oldname, &sbuf1);
1118 if (!NT_STATUS_IS_OK(status)) {
1119 return status;
1120 }
1121
1122 status = check_name(conn, oldname);
1123 if (!NT_STATUS_IS_OK(status)) {
1124 return status;
1125 }
1126
1127 /* Source must already exist. */
1128 if (!VALID_STAT(sbuf1)) {
1129 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
1130 }
1131 /* Ensure attributes match. */
1132 fattr = dos_mode(conn,oldname,&sbuf1);
1133 if ((fattr & ~attrs) & (aHIDDEN | aSYSTEM)) {
1134 return NT_STATUS_NO_SUCH_FILE;
1135 }
1136
1137 status = unix_convert(ctx, conn, newname_in, False, &newname,
1138 &last_component_newname, &sbuf2);
1139 if (!NT_STATUS_IS_OK(status)) {
1140 return status;
1141 }
1142
1143 status = check_name(conn, newname);
1144 if (!NT_STATUS_IS_OK(status)) {
1145 return status;
1146 }
1147
1148 /* Disallow if newname already exists. */
1149 if (VALID_STAT(sbuf2)) {
1150 return NT_STATUS_OBJECT_NAME_COLLISION;
1151 }
1152
1153 /* No links from a directory. */
1154 if (S_ISDIR(sbuf1.st_mode)) {
1155 return NT_STATUS_FILE_IS_A_DIRECTORY;
1156 }
1157
1158 /* Ensure this is within the share. */
1159 status = check_reduced_name(conn, oldname);
1160 if (!NT_STATUS_IS_OK(status)) {
1161 return status;
1162 }
1163
1164 DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1165 oldname, newname));
1166
1167 status = open_file_ntcreate(conn, req, oldname, &sbuf1,
1168 FILE_READ_DATA, /* Read-only. */
1169 FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
1170 FILE_OPEN,
1171 0, /* No create options. */
1172 FILE_ATTRIBUTE_NORMAL,
1173 NO_OPLOCK,
1174 &info, &fsp1);
1175
1176 if (!NT_STATUS_IS_OK(status)) {
1177 return status;
1178 }
1179
1180 status = open_file_ntcreate(conn, req, newname, &sbuf2,
1181 FILE_WRITE_DATA, /* Read-only. */
1182 FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
1183 FILE_CREATE,
1184 0, /* No create options. */
1185 fattr,
1186 NO_OPLOCK,
1187 &info, &fsp2);
1188
1189 if (!NT_STATUS_IS_OK(status)) {
1190 close_file(fsp1,ERROR_CLOSE);
1191 return status;
1192 }
1193
1194 if (sbuf1.st_size) {
1195 ret = vfs_transfer_file(fsp1, fsp2, sbuf1.st_size);
1196 }
1197
1198 /*
1199 * As we are opening fsp1 read-only we only expect
1200 * an error on close on fsp2 if we are out of space.
1201 * Thus we don't look at the error return from the
1202 * close of fsp1.
1203 */
1204 close_file(fsp1,NORMAL_CLOSE);
1205
1206 /* Ensure the modtime is set correctly on the destination file. */
1207 set_close_write_time(fsp2, get_mtimespec(&sbuf1));
1208
1209 status = close_file(fsp2,NORMAL_CLOSE);
1210
1211 /* Grrr. We have to do this as open_file_ntcreate adds aARCH when it
1212 creates the file. This isn't the correct thing to do in the copy
1213 case. JRA */
1214 file_set_dosmode(conn, newname, fattr, &sbuf2,
1215 parent_dirname(newname),false);
1216
1217 if (ret < (SMB_OFF_T)sbuf1.st_size) {
1218 return NT_STATUS_DISK_FULL;
1219 }
1220
1221 if (!NT_STATUS_IS_OK(status)) {
1222 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1223 nt_errstr(status), oldname, newname));
1224 }
1225 return status;
1226 }
1227
1228 /****************************************************************************
1229 Reply to a NT rename request.
1230 ****************************************************************************/
1231
1232 void reply_ntrename(struct smb_request *req)
1233 {
1234 connection_struct *conn = req->conn;
1235 char *oldname = NULL;
1236 char *newname = NULL;
1237 char *p;
1238 NTSTATUS status;
1239 bool src_has_wcard = False;
1240 bool dest_has_wcard = False;
1241 uint32 attrs;
1242 uint16 rename_type;
1243 TALLOC_CTX *ctx = talloc_tos();
1244
1245 START_PROFILE(SMBntrename);
1246
1247 if (req->wct < 4) {
1248 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1249 END_PROFILE(SMBntrename);
1250 return;
1251 }
1252
1253 attrs = SVAL(req->inbuf,smb_vwv0);
1254 rename_type = SVAL(req->inbuf,smb_vwv1);
1255
1256 p = smb_buf(req->inbuf) + 1;
1257 p += srvstr_get_path_wcard(ctx, (char *)req->inbuf, req->flags2, &oldname, p,
1258 0, STR_TERMINATE, &status,
1259 &src_has_wcard);
1260 if (!NT_STATUS_IS_OK(status)) {
1261 reply_nterror(req, status);
1262 END_PROFILE(SMBntrename);
1263 return;
1264 }
1265
1266 if (ms_has_wild(oldname)) {
1267 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1268 END_PROFILE(SMBntrename);
1269 return;
1270 }
1271
1272 p++;
1273 p += srvstr_get_path_wcard(ctx, (char *)req->inbuf, req->flags2, &newname, p,
1274 0, STR_TERMINATE, &status,
1275 &dest_has_wcard);
1276 if (!NT_STATUS_IS_OK(status)) {
1277 reply_nterror(req, status);
1278 END_PROFILE(SMBntrename);
1279 return;
1280 }
1281
1282 status = resolve_dfspath(ctx, conn,
1283 req->flags2 & FLAGS2_DFS_PATHNAMES,
1284 oldname,
1285 &oldname);
1286 if (!NT_STATUS_IS_OK(status)) {
1287 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1288 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1289 ERRSRV, ERRbadpath);
1290 END_PROFILE(SMBntrename);
1291 return;
1292 }
1293 reply_nterror(req, status);
1294 END_PROFILE(SMBntrename);
1295 return;
1296 }
1297
1298 status = resolve_dfspath(ctx, conn,
1299 req->flags2 & FLAGS2_DFS_PATHNAMES,
1300 newname,
1301 &newname);
1302 if (!NT_STATUS_IS_OK(status)) {
1303 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1304 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1305 ERRSRV, ERRbadpath);
1306 END_PROFILE(SMBntrename);
1307 return;
1308 }
1309 reply_nterror(req, status);
1310 END_PROFILE(SMBntrename);
1311 return;
1312 }
1313
1314 /* The new name must begin with a ':' if the old name is a stream. */
1315 if (is_ntfs_stream_name(oldname) && (newname[0] != ':')) {
1316 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1317 END_PROFILE(SMBntrename);
1318 return;
1319 }
1320
1321 DEBUG(3,("reply_ntrename : %s -> %s\n",oldname,newname));
1322
1323 switch(rename_type) {
1324 case RENAME_FLAG_RENAME:
1325 status = rename_internals(ctx, conn, req, oldname,
1326 newname, attrs, False, src_has_wcard,
1327 dest_has_wcard, DELETE_ACCESS);
1328 break;
1329 case RENAME_FLAG_HARD_LINK:
1330 if (src_has_wcard || dest_has_wcard) {
1331 /* No wildcards. */
1332 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1333 } else {
1334 status = hardlink_internals(ctx,
1335 conn,
1336 oldname,
1337 newname);
1338 }
1339 break;
1340 case RENAME_FLAG_COPY:
1341 if (src_has_wcard || dest_has_wcard) {
1342 /* No wildcards. */
1343 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1344 } else {
1345 status = copy_internals(ctx, conn, req, oldname,
1346 newname, attrs);
1347 }
1348 break;
1349 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1350 status = NT_STATUS_INVALID_PARAMETER;
1351 break;
1352 default:
1353 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1354 break;
1355 }
1356
1357 if (!NT_STATUS_IS_OK(status)) {
1358 if (open_was_deferred(req->mid)) {
1359 /* We have re-scheduled this call. */
1360 END_PROFILE(SMBntrename);
1361 return;
1362 }
1363
1364 reply_nterror(req, status);
1365 END_PROFILE(SMBntrename);
1366 return;
1367 }
1368
1369 reply_outbuf(req, 0, 0);
1370
1371 END_PROFILE(SMBntrename);
1372 return;
1373 }
1374
1375 /****************************************************************************
1376 Reply to a notify change - queue the request and
1377 don't allow a directory to be opened.
1378 ****************************************************************************/
1379
1380 static void call_nt_transact_notify_change(connection_struct *conn,
1381 struct smb_request *req,
1382 uint16 **ppsetup,
1383 uint32 setup_count,
1384 char **ppparams,
1385 uint32 parameter_count,
1386 char **ppdata, uint32 data_count,
1387 uint32 max_data_count,
1388 uint32 max_param_count)
1389 {
1390 uint16 *setup = *ppsetup;
1391 files_struct *fsp;
1392 uint32 filter;
1393 NTSTATUS status;
1394 bool recursive;
1395
1396 if(setup_count < 6) {
1397 reply_doserror(req, ERRDOS, ERRbadfunc);
1398 return;
1399 }
1400
1401 fsp = file_fsp(SVAL(setup,4));
1402 filter = IVAL(setup, 0);
1403 recursive = (SVAL(setup, 6) != 0) ? True : False;
1404
1405 DEBUG(3,("call_nt_transact_notify_change\n"));
1406
1407 if(!fsp) {
1408 reply_doserror(req, ERRDOS, ERRbadfid);
1409 return;
1410 }
1411
1412 {
1413 char *filter_string;
1414
1415 if (!(filter_string = notify_filter_string(NULL, filter))) {
1416 reply_nterror(req,NT_STATUS_NO_MEMORY);
1417 return;
1418 }
1419
1420 DEBUG(3,("call_nt_transact_notify_change: notify change "
1421 "called on %s, filter = %s, recursive = %d\n",
1422 fsp->fsp_name, filter_string, recursive));
1423
1424 TALLOC_FREE(filter_string);
1425 }
1426
1427 if((!fsp->is_directory) || (conn != fsp->conn)) {
1428 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1429 return;
1430 }
1431
1432 if (fsp->notify == NULL) {
1433
1434 status = change_notify_create(fsp, filter, recursive);
1435
1436 if (!NT_STATUS_IS_OK(status)) {
1437 DEBUG(10, ("change_notify_create returned %s\n",
1438 nt_errstr(status)));
1439 reply_nterror(req, status);
1440 return;
1441 }
1442 }
1443
1444 if (fsp->notify->num_changes != 0) {
1445
1446 /*
1447 * We've got changes pending, respond immediately
1448 */
1449
1450 /*
1451 * TODO: write a torture test to check the filtering behaviour
1452 * here.
1453 */
1454
1455 change_notify_reply(fsp->conn, req->inbuf, max_param_count, fsp->notify);
1456
1457 /*
1458 * change_notify_reply() above has independently sent its
1459 * results
1460 */
1461 return;
1462 }
1463
1464 /*
1465 * No changes pending, queue the request
1466 */
1467
1468 status = change_notify_add_request(req,
1469 max_param_count,
1470 filter,
1471 recursive, fsp);
1472 if (!NT_STATUS_IS_OK(status)) {
1473 reply_nterror(req, status);
1474 }
1475 return;
1476 }
1477
1478 /****************************************************************************
1479 Reply to an NT transact rename command.
1480 ****************************************************************************/
1481
1482 static void call_nt_transact_rename(connection_struct *conn,
1483 struct smb_request *req,
1484 uint16 **ppsetup, uint32 setup_count,
1485 char **ppparams, uint32 parameter_count,
1486 char **ppdata, uint32 data_count,
1487 uint32 max_data_count)
1488 {
1489 char *params = *ppparams;
1490 char *new_name = NULL;
1491 files_struct *fsp = NULL;
1492 bool dest_has_wcard = False;
1493 NTSTATUS status;
1494 TALLOC_CTX *ctx = talloc_tos();
1495
1496 if(parameter_count < 5) {
1497 reply_doserror(req, ERRDOS, ERRbadfunc);
1498 return;
1499 }
1500
1501 fsp = file_fsp(SVAL(params, 0));
1502 if (!check_fsp(conn, req, fsp)) {
1503 return;
1504 }
1505 srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1506 parameter_count - 4,
1507 STR_TERMINATE, &status, &dest_has_wcard);
1508 if (!NT_STATUS_IS_OK(status)) {
1509 reply_nterror(req, status);
1510 return;
1511 }
1512
1513 /*
1514 * W2K3 ignores this request as the RAW-RENAME test
1515 * demonstrates, so we do.
1516 */
1517 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1518
1519 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1520 fsp->fsp_name, new_name));
1521
1522 return;
1523 }
1524
1525 /******************************************************************************
1526 Fake up a completely empty SD.
1527 *******************************************************************************/
1528
1529 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
1530 {
1531 size_t sd_size;
1532
1533 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1534 if(!*ppsd) {
1535 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1536 return NT_STATUS_NO_MEMORY;
1537 }
1538
1539 return NT_STATUS_OK;
1540 }
1541
1542 /****************************************************************************
1543 Reply to query a security descriptor.
1544 ****************************************************************************/
1545
1546 static void call_nt_transact_query_security_desc(connection_struct *conn,
1547 struct smb_request *req,
1548 uint16 **ppsetup,
1549 uint32 setup_count,
1550 char **ppparams,
1551 uint32 parameter_count,
1552 char **ppdata,
1553 uint32 data_count,
1554 uint32 max_data_count)
1555 {
1556 char *params = *ppparams;
1557 char *data = *ppdata;
1558 SEC_DESC *psd = NULL;
1559 size_t sd_size;
1560 uint32 security_info_wanted;
1561 files_struct *fsp = NULL;
1562 NTSTATUS status;
1563 DATA_BLOB blob;
1564
1565 if(parameter_count < 8) {
1566 reply_doserror(req, ERRDOS, ERRbadfunc);
1567 return;
1568 }
1569
1570 fsp = file_fsp(SVAL(params,0));
1571 if(!fsp) {
1572 reply_doserror(req, ERRDOS, ERRbadfid);
1573 return;
1574 }
1575
1576 security_info_wanted = IVAL(params,4);
1577
1578 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, info_wanted = 0x%x\n", fsp->fsp_name,
1579 (unsigned int)security_info_wanted ));
1580
1581 params = nttrans_realloc(ppparams, 4);
1582 if(params == NULL) {
1583 reply_doserror(req, ERRDOS, ERRnomem);
1584 return;
1585 }
1586
1587 /*
1588 * Get the permissions to return.
1589 */
1590
1591 if (!lp_nt_acl_support(SNUM(conn))) {
1592 status = get_null_nt_acl(talloc_tos(), &psd);
1593 } else {
1594 status = SMB_VFS_FGET_NT_ACL(
1595 fsp, security_info_wanted, &psd);
1596 }
1597 if (!NT_STATUS_IS_OK(status)) {
1598 reply_nterror(req, status);
1599 return;
1600 }
1601
1602 /* If the SACL/DACL is NULL, but was requested, we mark that it is
1603 * present in the reply to match Windows behavior */
1604 if (psd->sacl == NULL &&
1605 security_info_wanted & SACL_SECURITY_INFORMATION)
1606 psd->type |= SEC_DESC_SACL_PRESENT;
1607 if (psd->dacl == NULL &&
1608 security_info_wanted & DACL_SECURITY_INFORMATION)
1609 psd->type |= SEC_DESC_DACL_PRESENT;
1610
1611 sd_size = ndr_size_security_descriptor(psd, 0);
1612
1613 DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %lu.\n",(unsigned long)sd_size));
1614
1615 if (DEBUGLEVEL >= 10) {
1616 DEBUG(10,("call_nt_transact_query_security_desc for file %s\n", fsp->fsp_name ));
1617 NDR_PRINT_DEBUG(security_descriptor, psd);
1618 }
1619
1620 SIVAL(params,0,(uint32)sd_size);
1621
1622 if (max_data_count < sd_size) {
1623 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1624 params, 4, *ppdata, 0);
1625 return;
1626 }
1627
1628 /*
1629 * Allocate the data we will point this at.
1630 */
1631
1632 data = nttrans_realloc(ppdata, sd_size);
1633 if(data == NULL) {
1634 reply_doserror(req, ERRDOS, ERRnomem);
1635 return;
1636 }
1637
1638 status = marshall_sec_desc(talloc_tos(), psd,
1639 &blob.data, &blob.length);
1640
1641 if (!NT_STATUS_IS_OK(status)) {
1642 reply_nterror(req, status);
1643 return;
1644 }
1645
1646 SMB_ASSERT(sd_size == blob.length);
1647 memcpy(data, blob.data, sd_size);
1648
1649 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
1650
1651 return;
1652 }
1653
1654 /****************************************************************************
1655 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
1656 ****************************************************************************/
1657
1658 static void call_nt_transact_set_security_desc(connection_struct *conn,
1659 struct smb_request *req,
1660 uint16 **ppsetup,
1661 uint32 setup_count,
1662 char **ppparams,
1663 uint32 parameter_count,
1664 char **ppdata,
1665 uint32 data_count,
1666 uint32 max_data_count)
1667 {
1668 char *params= *ppparams;
1669 char *data = *ppdata;
1670 files_struct *fsp = NULL;
1671 uint32 security_info_sent = 0;
1672 NTSTATUS status;
1673
1674 if(parameter_count < 8) {
1675 reply_doserror(req, ERRDOS, ERRbadfunc);
1676 return;
1677 }
1678
1679 if((fsp = file_fsp(SVAL(params,0))) == NULL) {
1680 reply_doserror(req, ERRDOS, ERRbadfid);
1681 return;
1682 }
1683
1684 if(!lp_nt_acl_support(SNUM(conn))) {
1685 goto done;
1686 }
1687
1688 security_info_sent = IVAL(params,4);
1689
1690 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n", fsp->fsp_name,
1691 (unsigned int)security_info_sent ));
1692
1693 if (data_count == 0) {
1694 reply_doserror(req, ERRDOS, ERRnoaccess);
1695 return;
1696 }
1697
1698 status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
1699
1700 if (!NT_STATUS_IS_OK(status)) {
1701 reply_nterror(req, status);
1702 return;
1703 }
1704
1705 done:
1706 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1707 return;
1708 }
1709
1710 /****************************************************************************
1711 Reply to NT IOCTL
1712 ****************************************************************************/
1713
1714 static void call_nt_transact_ioctl(connection_struct *conn,
1715 struct smb_request *req,
1716 uint16 **ppsetup, uint32 setup_count,
1717 char **ppparams, uint32 parameter_count,
1718 char **ppdata, uint32 data_count,
1719 uint32 max_data_count)
1720 {
1721 uint32 function;
1722 uint16 fidnum;
1723 files_struct *fsp;
1724 uint8 isFSctl;
1725 uint8 compfilter;
1726 static bool logged_message;
1727 char *pdata = *ppdata;
1728
1729 if (setup_count != 8) {
1730 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
1731 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1732 return;
1733 }
1734
1735 function = IVAL(*ppsetup, 0);
1736 fidnum = SVAL(*ppsetup, 4);
1737 isFSctl = CVAL(*ppsetup, 6);
1738 compfilter = CVAL(*ppsetup, 7);
1739
1740 DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
1741 function, fidnum, isFSctl, compfilter));
1742
1743 fsp=file_fsp(fidnum);
1744 /* this check is done in each implemented function case for now
1745 because I don't want to break anything... --metze
1746 FSP_BELONGS_CONN(fsp,conn);*/
1747
1748 switch (function) {
1749 case FSCTL_SET_SPARSE:
1750 /* pretend this succeeded - tho strictly we should
1751 mark the file sparse (if the local fs supports it)
1752 so we can know if we need to pre-allocate or not */
1753
1754 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum));
1755 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1756 return;
1757
1758 case FSCTL_CREATE_OR_GET_OBJECT_ID:
1759 {
1760 unsigned char objid[16];
1761
1762 /* This should return the object-id on this file.
1763 * I think I'll make this be the inode+dev. JRA.
1764 */
1765
1766 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
1767
1768 if (!fsp_belongs_conn(conn, req, fsp)) {
1769 return;
1770 }
1771
1772 data_count = 64;
1773 pdata = nttrans_realloc(ppdata, data_count);
1774 if (pdata == NULL) {
1775 reply_nterror(req, NT_STATUS_NO_MEMORY);
1776 return;
1777 }
1778 push_file_id_16(pdata, &fsp->file_id);
1779 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
1780 push_file_id_16(pdata+32, &fsp->file_id);
1781 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
1782 pdata, data_count);
1783 return;
1784 }
1785
1786 case FSCTL_GET_REPARSE_POINT:
1787 /* pretend this fail - my winXP does it like this
1788 * --metze
1789 */
1790
1791 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1792 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1793 return;
1794
1795 case FSCTL_SET_REPARSE_POINT:
1796 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
1797 * --metze
1798 */
1799
1800 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1801 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1802 return;
1803
1804 case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
1805 {
1806 /*
1807 * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
1808 * and return their volume names. If max_data_count is 16, then it is just
1809 * asking for the number of volumes and length of the combined names.
1810 *
1811 * pdata is the data allocated by our caller, but that uses
1812 * total_data_count (which is 0 in our case) rather than max_data_count.
1813 * Allocate the correct amount and return the pointer to let
1814 * it be deallocated when we return.
1815 */
1816 SHADOW_COPY_DATA *shadow_data = NULL;
1817 TALLOC_CTX *shadow_mem_ctx = NULL;
1818 bool labels = False;
1819 uint32 labels_data_count = 0;
1820 uint32 i;
1821 char *cur_pdata;
1822
1823 if (!fsp_belongs_conn(conn, req, fsp)) {
1824 return;
1825 }
1826
1827 if (max_data_count < 16) {
1828 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
1829 max_data_count));
1830 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1831 return;
1832 }
1833
1834 if (max_data_count > 16) {
1835 labels = True;
1836 }
1837
1838 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
1839 if (shadow_mem_ctx == NULL) {
1840 DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
1841 reply_nterror(req, NT_STATUS_NO_MEMORY);
1842 return;
1843 }
1844
1845 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
1846 if (shadow_data == NULL) {
1847 DEBUG(0,("TALLOC_ZERO() failed!\n"));
1848 talloc_destroy(shadow_mem_ctx);
1849 reply_nterror(req, NT_STATUS_NO_MEMORY);
1850 return;
1851 }
1852
1853 shadow_data->mem_ctx = shadow_mem_ctx;
1854
1855 /*
1856 * Call the VFS routine to actually do the work.
1857 */
1858 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
1859 talloc_destroy(shadow_data->mem_ctx);
1860 if (errno == ENOSYS) {
1861 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
1862 conn->connectpath));
1863 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1864 return;
1865 } else {
1866 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
1867 conn->connectpath));
1868 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
1869 return;
1870 }
1871 }
1872
1873 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
1874
1875 if (!labels) {
1876 data_count = 16;
1877 } else {
1878 data_count = 12+labels_data_count+4;
1879 }
1880
1881 if (max_data_count<data_count) {
1882 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
1883 max_data_count,data_count));
1884 talloc_destroy(shadow_data->mem_ctx);
1885 reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
1886 return;
1887 }
1888
1889 pdata = nttrans_realloc(ppdata, data_count);
1890 if (pdata == NULL) {
1891 talloc_destroy(shadow_data->mem_ctx);
1892 reply_nterror(req, NT_STATUS_NO_MEMORY);
1893 return;
1894 }
1895
1896 cur_pdata = pdata;
1897
1898 /* num_volumes 4 bytes */
1899 SIVAL(pdata,0,shadow_data->num_volumes);
1900
1901 if (labels) {
1902 /* num_labels 4 bytes */
1903 SIVAL(pdata,4,shadow_data->num_volumes);
1904 }
1905
1906 /* needed_data_count 4 bytes */
1907 SIVAL(pdata,8,labels_data_count);
1908
1909 cur_pdata+=12;
1910
1911 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
1912 shadow_data->num_volumes,fsp->fsp_name));
1913 if (labels && shadow_data->labels) {
1914 for (i=0;i<shadow_data->num_volumes;i++) {
1915 srvstr_push(pdata, req->flags2,
1916 cur_pdata, shadow_data->labels[i],
1917 2*sizeof(SHADOW_COPY_LABEL),
1918 STR_UNICODE|STR_TERMINATE);
1919 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
1920 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
1921 }
1922 }
1923
1924 talloc_destroy(shadow_data->mem_ctx);
1925
1926 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
1927 pdata, data_count);
1928
1929 return;
1930 }
1931
1932 case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
1933 {
1934 /* pretend this succeeded -
1935 *
1936 * we have to send back a list with all files owned by this SID
1937 *
1938 * but I have to check that --metze
1939 */
1940 DOM_SID sid;
1941 uid_t uid;
1942 size_t sid_len = MIN(data_count-4,SID_MAX_SIZE);
1943
1944 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
1945
1946 if (!fsp_belongs_conn(conn, req, fsp)) {
1947 return;
1948 }
1949
1950 /* unknown 4 bytes: this is not the length of the sid :-( */
1951 /*unknown = IVAL(pdata,0);*/
1952
1953 sid_parse(pdata+4,sid_len,&sid);
1954 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
1955
1956 if (!sid_to_uid(&sid, &uid)) {
1957 DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
1958 sid_string_dbg(&sid),
1959 (unsigned long)sid_len));
1960 uid = (-1);
1961 }
1962
1963 /* we can take a look at the find source :-)
1964 *
1965 * find ./ -uid $uid -name '*' is what we need here
1966 *
1967 *
1968 * and send 4bytes len and then NULL terminated unicode strings
1969 * for each file
1970 *
1971 * but I don't know how to deal with the paged results
1972 * (maybe we can hang the result anywhere in the fsp struct)
1973 *
1974 * we don't send all files at once
1975 * and at the next we should *not* start from the beginning,
1976 * so we have to cache the result
1977 *
1978 * --metze
1979 */
1980
1981 /* this works for now... */
1982 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1983 return;
1984 }
1985 default:
1986 if (!logged_message) {
1987 logged_message = True; /* Only print this once... */
1988 DEBUG(0,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n",
1989 function));
1990 }
1991 }
1992
1993 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1994 }
1995
1996
1997 #ifdef HAVE_SYS_QUOTAS
1998 /****************************************************************************
1999 Reply to get user quota
2000 ****************************************************************************/
2001
2002 static void call_nt_transact_get_user_quota(connection_struct *conn,
2003 struct smb_request *req,
2004 uint16 **ppsetup,
2005 uint32 setup_count,
2006 char **ppparams,
2007 uint32 parameter_count,
2008 char **ppdata,
2009 uint32 data_count,
2010 uint32 max_data_count)
2011 {
2012 NTSTATUS nt_status = NT_STATUS_OK;
2013 char *params = *ppparams;
2014 char *pdata = *ppdata;
2015 char *entry;
2016 int data_len=0,param_len=0;
2017 int qt_len=0;
2018 int entry_len = 0;
2019 files_struct *fsp = NULL;
2020 uint16 level = 0;
2021 size_t sid_len;
2022 DOM_SID sid;
2023 bool start_enum = True;
2024 SMB_NTQUOTA_STRUCT qt;
2025 SMB_NTQUOTA_LIST *tmp_list;
2026 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2027
2028 ZERO_STRUCT(qt);
2029
2030 /* access check */
2031 if (conn->server_info->utok.uid != 0) {
2032 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2033 "[%s]\n", lp_servicename(SNUM(conn)),
2034 conn->server_info->unix_name));
2035 reply_doserror(req, ERRDOS, ERRnoaccess);
2036 return;
2037 }
2038
2039 /*
2040 * Ensure minimum number of parameters sent.
2041 */
2042
2043 if (parameter_count < 4) {
2044 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2045 reply_doserror(req, ERRDOS, ERRinvalidparam);
2046 return;
2047 }
2048
2049 /* maybe we can check the quota_fnum */
2050 fsp = file_fsp(SVAL(params,0));
2051 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2052 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2053 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2054 return;
2055 }
2056
2057 /* the NULL pointer checking for fsp->fake_file_handle->pd
2058 * is done by CHECK_NTQUOTA_HANDLE_OK()
2059 */
2060 qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2061
2062 level = SVAL(params,2);
2063
2064 /* unknown 12 bytes leading in params */
2065
2066 switch (level) {
2067 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2068 /* seems that we should continue with the enum here --metze */
2069
2070 if (qt_handle->quota_list!=NULL &&
2071 qt_handle->tmp_list==NULL) {
2072
2073 /* free the list */
2074 free_ntquota_list(&(qt_handle->quota_list));
2075
2076 /* Realloc the size of parameters and data we will return */
2077 param_len = 4;
2078 params = nttrans_realloc(ppparams, param_len);
2079 if(params == NULL) {
2080 reply_doserror(req, ERRDOS, ERRnomem);
2081 return;
2082 }
2083
2084 data_len = 0;
2085 SIVAL(params,0,data_len);
2086
2087 break;
2088 }
2089
2090 start_enum = False;
2091
2092 case TRANSACT_GET_USER_QUOTA_LIST_START:
2093
2094 if (qt_handle->quota_list==NULL &&
2095 qt_handle->tmp_list==NULL) {
2096 start_enum = True;
2097 }
2098
2099 if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2100 reply_doserror(req, ERRSRV, ERRerror);
2101 return;
2102 }
2103
2104 /* Realloc the size of parameters and data we will return */
2105 param_len = 4;
2106 params = nttrans_realloc(ppparams, param_len);
2107 if(params == NULL) {
2108 reply_doserror(req, ERRDOS, ERRnomem);
2109 return;
2110 }
2111
2112 /* we should not trust the value in max_data_count*/
2113 max_data_count = MIN(max_data_count,2048);
2114
2115 pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2116 if(pdata == NULL) {
2117 reply_doserror(req, ERRDOS, ERRnomem);
2118 return;
2119 }
2120
2121 entry = pdata;
2122
2123 /* set params Size of returned Quota Data 4 bytes*/
2124 /* but set it later when we know it */
2125
2126 /* for each entry push the data */
2127
2128 if (start_enum) {
2129 qt_handle->tmp_list = qt_handle->quota_list;
2130 }
2131
2132 tmp_list = qt_handle->tmp_list;
2133
2134 for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2135 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2136
2137 sid_len = ndr_size_dom_sid(
2138 &tmp_list->quotas->sid, 0);
2139 entry_len = 40 + sid_len;
2140
2141 /* nextoffset entry 4 bytes */
2142 SIVAL(entry,0,entry_len);
2143
2144 /* then the len of the SID 4 bytes */
2145 SIVAL(entry,4,sid_len);
2146
2147 /* unknown data 8 bytes SMB_BIG_UINT */
2148 SBIG_UINT(entry,8,(SMB_BIG_UINT)0); /* this is not 0 in windows...-metze*/
2149
2150 /* the used disk space 8 bytes SMB_BIG_UINT */
2151 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2152
2153 /* the soft quotas 8 bytes SMB_BIG_UINT */
2154 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2155
2156 /* the hard quotas 8 bytes SMB_BIG_UINT */
2157 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2158
2159 /* and now the SID */
2160 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2161 }
2162
2163 qt_handle->tmp_list = tmp_list;
2164
2165 /* overwrite the offset of the last entry */
2166 SIVAL(entry-entry_len,0,0);
2167
2168 data_len = 4+qt_len;
2169 /* overwrite the params quota_data_len */
2170 SIVAL(params,0,data_len);
2171
2172 break;
2173
2174 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2175
2176 /* unknown 4 bytes IVAL(pdata,0) */
2177
2178 if (data_count < 8) {
2179 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2180 reply_doserror(req, ERRDOS, ERRunknownlevel);
2181 return;
2182 }
2183
2184 sid_len = IVAL(pdata,4);
2185 /* Ensure this is less than 1mb. */
2186 if (sid_len > (1024*1024)) {
2187 reply_doserror(req, ERRDOS, ERRnomem);
2188 return;
2189 }
2190
2191 if (data_count < 8+sid_len) {
2192 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2193 reply_doserror(req, ERRDOS, ERRunknownlevel);
2194 return;
2195 }
2196
2197 data_len = 4+40+sid_len;
2198
2199 if (max_data_count < data_len) {
2200 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2201 max_data_count, data_len));
2202 param_len = 4;
2203 SIVAL(params,0,data_len);
2204 data_len = 0;
2205 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2206 break;
2207 }
2208
2209 sid_parse(pdata+8,sid_len,&sid);
2210
2211 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2212 ZERO_STRUCT(qt);
2213 /*
2214 * we have to return zero's in all fields
2215 * instead of returning an error here
2216 * --metze
2217 */
2218 }
2219
2220 /* Realloc the size of parameters and data we will return */
2221 param_len = 4;
2222 params = nttrans_realloc(ppparams, param_len);
2223 if(params == NULL) {
2224 reply_doserror(req, ERRDOS, ERRnomem);
2225 return;
2226 }
2227
2228 pdata = nttrans_realloc(ppdata, data_len);
2229 if(pdata == NULL) {
2230 reply_doserror(req, ERRDOS, ERRnomem);
2231 return;
2232 }
2233
2234 entry = pdata;
2235
2236 /* set params Size of returned Quota Data 4 bytes*/
2237 SIVAL(params,0,data_len);
2238
2239 /* nextoffset entry 4 bytes */
2240 SIVAL(entry,0,0);
2241
2242 /* then the len of the SID 4 bytes */
2243 SIVAL(entry,4,sid_len);
2244
2245 /* unknown data 8 bytes SMB_BIG_UINT */
2246 SBIG_UINT(entry,8,(SMB_BIG_UINT)0); /* this is not 0 in windows...-mezte*/
2247
2248 /* the used disk space 8 bytes SMB_BIG_UINT */
2249 SBIG_UINT(entry,16,qt.usedspace);
2250
2251 /* the soft quotas 8 bytes SMB_BIG_UINT */
2252 SBIG_UINT(entry,24,qt.softlim);
2253
2254 /* the hard quotas 8 bytes SMB_BIG_UINT */
2255 SBIG_UINT(entry,32,qt.hardlim);
2256
2257 /* and now the SID */
2258 sid_linearize(entry+40, sid_len, &sid);
2259
2260 break;
2261
2262 default:
2263 DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2264 reply_doserror(req, ERRSRV, ERRerror);
2265 return;
2266 break;
2267 }
2268
2269 send_nt_replies(conn, req, nt_status, params, param_len,
2270 pdata, data_len);
2271 }
2272
2273 /****************************************************************************
2274 Reply to set user quota
2275 ****************************************************************************/
2276
2277 static void call_nt_transact_set_user_quota(connection_struct *conn,
2278 struct smb_request *req,
2279 uint16 **ppsetup,
2280 uint32 setup_count,
2281 char **ppparams,
2282 uint32 parameter_count,
2283 char **ppdata,
2284 uint32 data_count,
2285 uint32 max_data_count)
2286 {
2287 char *params = *ppparams;
2288 char *pdata = *ppdata;
2289 int data_len=0,param_len=0;
2290 SMB_NTQUOTA_STRUCT qt;
2291 size_t sid_len;
2292 DOM_SID sid;
2293 files_struct *fsp = NULL;
2294
2295 ZERO_STRUCT(qt);
2296
2297 /* access check */
2298 if (conn->server_info->utok.uid != 0) {
2299 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2300 "[%s]\n", lp_servicename(SNUM(conn)),
2301 conn->server_info->unix_name));
2302 reply_doserror(req, ERRDOS, ERRnoaccess);
2303 return;
2304 }
2305
2306 /*
2307 * Ensure minimum number of parameters sent.
2308 */
2309
2310 if (parameter_count < 2) {
2311 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2312 reply_doserror(req, ERRDOS, ERRinvalidparam);
2313 return;
2314 }
2315
2316 /* maybe we can check the quota_fnum */
2317 fsp = file_fsp(SVAL(params,0));
2318 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2319 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2320 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2321 return;
2322 }
2323
2324 if (data_count < 40) {
2325 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2326 reply_doserror(req, ERRDOS, ERRunknownlevel);
2327 return;
2328 }
2329
2330 /* offset to next quota record.
2331 * 4 bytes IVAL(pdata,0)
2332 * unused here...
2333 */
2334
2335 /* sid len */
2336 sid_len = IVAL(pdata,4);
2337
2338 if (data_count < 40+sid_len) {
2339 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2340 reply_doserror(req, ERRDOS, ERRunknownlevel);
2341 return;
2342 }
2343
2344 /* unknown 8 bytes in pdata
2345 * maybe its the change time in NTTIME
2346 */
2347
2348 /* the used space 8 bytes (SMB_BIG_UINT)*/
2349 qt.usedspace = (SMB_BIG_UINT)IVAL(pdata,16);
2350 #ifdef LARGE_SMB_OFF_T
2351 qt.usedspace |= (((SMB_BIG_UINT)IVAL(pdata,20)) << 32);
2352 #else /* LARGE_SMB_OFF_T */
2353 if ((IVAL(pdata,20) != 0)&&
2354 ((qt.usedspace != 0xFFFFFFFF)||
2355 (IVAL(pdata,20)!=0xFFFFFFFF))) {
2356 /* more than 32 bits? */
2357 reply_doserror(req, ERRDOS, ERRunknownlevel);
2358 return;
2359 }
2360 #endif /* LARGE_SMB_OFF_T */
2361
2362 /* the soft quotas 8 bytes (SMB_BIG_UINT)*/
2363 qt.softlim = (SMB_BIG_UINT)IVAL(pdata,24);
2364 #ifdef LARGE_SMB_OFF_T
2365 qt.softlim |= (((SMB_BIG_UINT)IVAL(pdata,28)) << 32);
2366 #else /* LARGE_SMB_OFF_T */
2367 if ((IVAL(pdata,28) != 0)&&
2368 ((qt.softlim != 0xFFFFFFFF)||
2369 (IVAL(pdata,28)!=0xFFFFFFFF))) {
2370 /* more than 32 bits? */
2371 reply_doserror(req, ERRDOS, ERRunknownlevel);
2372 return;
2373 }
2374 #endif /* LARGE_SMB_OFF_T */
2375
2376 /* the hard quotas 8 bytes (SMB_BIG_UINT)*/
2377 qt.hardlim = (SMB_BIG_UINT)IVAL(pdata,32);
2378 #ifdef LARGE_SMB_OFF_T
2379 qt.hardlim |= (((SMB_BIG_UINT)IVAL(pdata,36)) << 32);
2380 #else /* LARGE_SMB_OFF_T */
2381 if ((IVAL(pdata,36) != 0)&&
2382 ((qt.hardlim != 0xFFFFFFFF)||
2383 (IVAL(pdata,36)!=0xFFFFFFFF))) {
2384 /* more than 32 bits? */
2385 reply_doserror(req, ERRDOS, ERRunknownlevel);
2386 return;
2387 }
2388 #endif /* LARGE_SMB_OFF_T */
2389
2390 sid_parse(pdata+40,sid_len,&sid);
2391 DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2392
2393 /* 44 unknown bytes left... */
2394
2395 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2396 reply_doserror(req, ERRSRV, ERRerror);
2397 return;
2398 }
2399
2400 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2401 pdata, data_len);
2402 }
2403 #endif /* HAVE_SYS_QUOTAS */
2404
2405 static void handle_nttrans(connection_struct *conn,
2406 struct trans_state *state,
2407 struct smb_request *req)
2408 {
2409 if (Protocol >= PROTOCOL_NT1) {
2410 req->flags2 |= 0x40; /* IS_LONG_NAME */
2411 SSVAL(req->inbuf,smb_flg2,req->flags2);
2412 }
2413
2414 /* Now we must call the relevant NT_TRANS function */
2415 switch(state->call) {
2416 case NT_TRANSACT_CREATE:
2417 {
2418 START_PROFILE(NT_transact_create);
2419 call_nt_transact_create(
2420 conn, req,
2421 &state->setup, state->setup_count,
2422 &state->param, state->total_param,
2423 &state->data, state->total_data,
2424 state->max_data_return);
2425 END_PROFILE(NT_transact_create);
2426 break;
2427 }
2428
2429 case NT_TRANSACT_IOCTL:
2430 {
2431 START_PROFILE(NT_transact_ioctl);
2432 call_nt_transact_ioctl(
2433 conn, req,
2434 &state->setup, state->setup_count,
2435 &state->param, state->total_param,
2436 &state->data, state->total_data,
2437 state->max_data_return);
2438 END_PROFILE(NT_transact_ioctl);
2439 break;
2440 }
2441
2442 case NT_TRANSACT_SET_SECURITY_DESC:
2443 {
2444 START_PROFILE(NT_transact_set_security_desc);
2445 call_nt_transact_set_security_desc(
2446 conn, req,
2447 &state->setup, state->setup_count,
2448 &state->param, state->total_param,
2449 &state->data, state->total_data,
2450 state->max_data_return);
2451 END_PROFILE(NT_transact_set_security_desc);
2452 break;
2453 }
2454
2455 case NT_TRANSACT_NOTIFY_CHANGE:
2456 {
2457 START_PROFILE(NT_transact_notify_change);
2458 call_nt_transact_notify_change(
2459 conn, req,
2460 &state->setup, state->setup_count,
2461 &state->param, state->total_param,
2462 &state->data, state->total_data,
2463 state->max_data_return,
2464 state->max_param_return);
2465 END_PROFILE(NT_transact_notify_change);
2466 break;
2467 }
2468
2469 case NT_TRANSACT_RENAME:
2470 {
2471 START_PROFILE(NT_transact_rename);
2472 call_nt_transact_rename(
2473 conn, req,
2474 &state->setup, state->setup_count,
2475 &state->param, state->total_param,
2476 &state->data, state->total_data,
2477 state->max_data_return);
2478 END_PROFILE(NT_transact_rename);
2479 break;
2480 }
2481
2482 case NT_TRANSACT_QUERY_SECURITY_DESC:
2483 {
2484 START_PROFILE(NT_transact_query_security_desc);
2485 call_nt_transact_query_security_desc(
2486 conn, req,
2487 &state->setup, state->setup_count,
2488 &state->param, state->total_param,
2489 &state->data, state->total_data,
2490 state->max_data_return);
2491 END_PROFILE(NT_transact_query_security_desc);
2492 break;
2493 }
2494
2495 #ifdef HAVE_SYS_QUOTAS
2496 case NT_TRANSACT_GET_USER_QUOTA:
2497 {
2498 START_PROFILE(NT_transact_get_user_quota);
2499 call_nt_transact_get_user_quota(
2500 conn, req,
2501 &state->setup, state->setup_count,
2502 &state->param, state->total_param,
2503 &state->data, state->total_data,
2504 state->max_data_return);
2505 END_PROFILE(NT_transact_get_user_quota);
2506 break;
2507 }
2508
2509 case NT_TRANSACT_SET_USER_QUOTA:
2510 {
2511 START_PROFILE(NT_transact_set_user_quota);
2512 call_nt_transact_set_user_quota(
2513 conn, req,
2514 &state->setup, state->setup_count,
2515 &state->param, state->total_param,
2516 &state->data, state->total_data,
2517 state->max_data_return);
2518 END_PROFILE(NT_transact_set_user_quota);
2519 break;
2520 }
2521 #endif /* HAVE_SYS_QUOTAS */
2522
2523 default:
2524 /* Error in request */
2525 DEBUG(0,("handle_nttrans: Unknown request %d in "
2526 "nttrans call\n", state->call));
2527 reply_doserror(req, ERRSRV, ERRerror);
2528 return;
2529 }
2530 return;
2531 }
2532
2533 /****************************************************************************
2534 Reply to a SMBNTtrans.
2535 ****************************************************************************/
2536
2537 void reply_nttrans(struct smb_request *req)
2538 {
2539 connection_struct *conn = req->conn;
2540 uint32_t pscnt;
2541 uint32_t psoff;
2542 uint32_t dscnt;
2543 uint32_t dsoff;
2544 uint16 function_code;
2545 NTSTATUS result;
2546 struct trans_state *state;
2547 uint32_t size;
2548 uint32_t av_size;
2549
2550 START_PROFILE(SMBnttrans);
2551
2552 if (req->wct < 19) {
2553 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2554 END_PROFILE(SMBnttrans);
2555 return;
2556 }
2557
2558 size = smb_len(req->inbuf) + 4;
2559 av_size = smb_len(req->inbuf);
2560 pscnt = IVAL(req->inbuf,smb_nt_ParameterCount);
2561 psoff = IVAL(req->inbuf,smb_nt_ParameterOffset);
2562 dscnt = IVAL(req->inbuf,smb_nt_DataCount);
2563 dsoff = IVAL(req->inbuf,smb_nt_DataOffset);
2564 function_code = SVAL(req->inbuf, smb_nt_Function);
2565
2566 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2567 reply_doserror(req, ERRSRV, ERRaccess);
2568 END_PROFILE(SMBnttrans);
2569 return;
2570 }
2571
2572 result = allow_new_trans(conn->pending_trans, req->mid);
2573 if (!NT_STATUS_IS_OK(result)) {
2574 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2575 reply_nterror(req, result);
2576 END_PROFILE(SMBnttrans);
2577 return;
2578 }
2579
2580 if ((state = TALLOC_P(conn, struct trans_state)) == NULL) {
2581 reply_doserror(req, ERRSRV, ERRaccess);
2582 END_PROFILE(SMBnttrans);
2583 return;
2584 }
2585
2586 state->cmd = SMBnttrans;
2587
2588 state->mid = req->mid;
2589 state->vuid = req->vuid;
2590 state->total_data = IVAL(req->inbuf, smb_nt_TotalDataCount);
2591 state->data = NULL;
2592 state->total_param = IVAL(req->inbuf, smb_nt_TotalParameterCount);
2593 state->param = NULL;
2594 state->max_data_return = IVAL(req->inbuf,smb_nt_MaxDataCount);
2595 state->max_param_return = IVAL(req->inbuf,smb_nt_MaxParameterCount);
2596
2597 /* setup count is in *words* */
2598 state->setup_count = 2*CVAL(req->inbuf,smb_nt_SetupCount);
2599 state->setup = NULL;
2600 state->call = function_code;
2601
2602 /*
2603 * All nttrans messages we handle have smb_wct == 19 +
2604 * state->setup_count. Ensure this is so as a sanity check.
2605 */
2606
2607 if(req->wct != 19 + (state->setup_count/2)) {
2608 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2609 req->wct, 19 + (state->setup_count/2)));
2610 goto bad_param;
2611 }
2612
2613 /* Don't allow more than 128mb for each value. */
2614 if ((state->total_data > (1024*1024*128)) ||
2615 (state->total_param > (1024*1024*128))) {
2616 reply_doserror(req, ERRDOS, ERRnomem);
2617 END_PROFILE(SMBnttrans);
2618 return;
2619 }
2620
2621 if ((dscnt > state->total_data) || (pscnt > state->total_param))
2622 goto bad_param;
2623
2624 if (state->total_data) {
2625 /* Can't use talloc here, the core routines do realloc on the
2626 * params and data. */
2627 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2628 DEBUG(0,("reply_nttrans: data malloc fail for %u "
2629 "bytes !\n", (unsigned int)state->total_data));
2630 TALLOC_FREE(state);
2631 reply_doserror(req, ERRDOS, ERRnomem);
2632 END_PROFILE(SMBnttrans);
2633 return;
2634 }
2635
2636 if (dscnt > state->total_data ||
2637 dsoff+dscnt < dsoff) {
2638 goto bad_param;
2639 }
2640
2641 if (dsoff > av_size ||
2642 dscnt > av_size ||
2643 dsoff+dscnt > av_size) {
2644 goto bad_param;
2645 }
2646
2647 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2648 }
2649
2650 if (state->total_param) {
2651 /* Can't use talloc here, the core routines do realloc on the
2652 * params and data. */
2653 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2654 DEBUG(0,("reply_nttrans: param malloc fail for %u "
2655 "bytes !\n", (unsigned int)state->total_param));
2656 SAFE_FREE(state->data);
2657 TALLOC_FREE(state);
2658 reply_doserror(req, ERRDOS, ERRnomem);
2659 END_PROFILE(SMBnttrans);
2660 return;
2661 }
2662
2663 if (pscnt > state->total_param ||
2664 psoff+pscnt < psoff) {
2665 goto bad_param;
2666 }
2667
2668 if (psoff > av_size ||
2669 pscnt > av_size ||
2670 psoff+pscnt > av_size) {
2671 goto bad_param;
2672 }
2673
2674 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2675 }
2676
2677 state->received_data = dscnt;
2678 state->received_param = pscnt;
2679
2680 if(state->setup_count > 0) {
2681 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2682 state->setup_count));
2683 state->setup = (uint16 *)TALLOC(state, state->setup_count);
2684 if (state->setup == NULL) {
2685 DEBUG(0,("reply_nttrans : Out of memory\n"));
2686 SAFE_FREE(state->data);
2687 SAFE_FREE(state->param);
2688 TALLOC_FREE(state);
2689 reply_doserror(req, ERRDOS, ERRnomem);
2690 END_PROFILE(SMBnttrans);
2691 return;
2692 }
2693
2694 if ((smb_nt_SetupStart + state->setup_count < smb_nt_SetupStart) ||
2695 (smb_nt_SetupStart + state->setup_count < state->setup_count)) {
2696 goto bad_param;
2697 }
2698 if (smb_nt_SetupStart + state->setup_count > size) {
2699 goto bad_param;
2700 }
2701
2702 memcpy( state->setup, &req->inbuf[smb_nt_SetupStart],
2703 state->setup_count);
2704 dump_data(10, (uint8 *)state->setup, state->setup_count);
2705 }
2706
2707 if ((state->received_data == state->total_data) &&
2708 (state->received_param == state->total_param)) {
2709 handle_nttrans(conn, state, req);
2710 SAFE_FREE(state->param);
2711 SAFE_FREE(state->data);
2712 TALLOC_FREE(state);
2713 END_PROFILE(SMBnttrans);
2714 return;
2715 }
2716
2717 DLIST_ADD(conn->pending_trans, state);
2718
2719 /* We need to send an interim response then receive the rest
2720 of the parameter/data bytes */
2721 reply_outbuf(req, 0, 0);
2722 show_msg((char *)req->outbuf);
2723 END_PROFILE(SMBnttrans);
2724 return;
2725
2726 bad_param:
2727
2728 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2729 SAFE_FREE(state->data);
2730 SAFE_FREE(state->param);
2731 TALLOC_FREE(state);
2732 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2733 END_PROFILE(SMBnttrans);
2734 return;
2735 }
2736
2737 /****************************************************************************
2738 Reply to a SMBnttranss
2739 ****************************************************************************/
2740
2741 void reply_nttranss(struct smb_request *req)
2742 {
2743 connection_struct *conn = req->conn;
2744 uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
2745 struct trans_state *state;
2746 uint32_t av_size;
2747 uint32_t size;
2748
2749 START_PROFILE(SMBnttranss);
2750
2751 show_msg((char *)req->inbuf);
2752
2753 if (req->wct < 18) {
2754 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2755 END_PROFILE(SMBnttranss);
2756 return;
2757 }
2758
2759 for (state = conn->pending_trans; state != NULL;
2760 state = state->next) {
2761 if (state->mid == req->mid) {
2762 break;
2763 }
2764 }
2765
2766 if ((state == NULL) || (state->cmd != SMBnttrans)) {
2767 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2768 END_PROFILE(SMBnttranss);
2769 return;
2770 }
2771
2772 /* Revise state->total_param and state->total_data in case they have
2773 changed downwards */
2774 if (IVAL(req->inbuf, smb_nts_TotalParameterCount)
2775 < state->total_param) {
2776 state->total_param = IVAL(req->inbuf,
2777 smb_nts_TotalParameterCount);
2778 }
2779 if (IVAL(req->inbuf, smb_nts_TotalDataCount) < state->total_data) {
2780 state->total_data = IVAL(req->inbuf, smb_nts_TotalDataCount);
2781 }
2782
2783 size = smb_len(req->inbuf) + 4;
2784 av_size = smb_len(req->inbuf);
2785
2786 pcnt = IVAL(req->inbuf,smb_nts_ParameterCount);
2787 poff = IVAL(req->inbuf, smb_nts_ParameterOffset);
2788 pdisp = IVAL(req->inbuf, smb_nts_ParameterDisplacement);
2789
2790 dcnt = IVAL(req->inbuf, smb_nts_DataCount);
2791 ddisp = IVAL(req->inbuf, smb_nts_DataDisplacement);
2792 doff = IVAL(req->inbuf, smb_nts_DataOffset);
2793
2794 state->received_param += pcnt;
2795 state->received_data += dcnt;
2796
2797 if ((state->received_data > state->total_data) ||
2798 (state->received_param > state->total_param))
2799 goto bad_param;
2800
2801 if (pcnt) {
2802 if (pdisp > state->total_param ||
2803 pcnt > state->total_param ||
2804 pdisp+pcnt > state->total_param ||
2805 pdisp+pcnt < pdisp) {
2806 goto bad_param;
2807 }
2808
2809 if (poff > av_size ||
2810 pcnt > av_size ||
2811 poff+pcnt > av_size ||
2812 poff+pcnt < poff) {
2813 goto bad_param;
2814 }
2815
2816 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,
2817 pcnt);
2818 }
2819
2820 if (dcnt) {
2821 if (ddisp > state->total_data ||
2822 dcnt > state->total_data ||
2823 ddisp+dcnt > state->total_data ||
2824 ddisp+dcnt < ddisp) {
2825 goto bad_param;
2826 }
2827
2828 if (doff > av_size ||
2829 dcnt > av_size ||
2830 doff+dcnt > av_size ||
2831 doff+dcnt < doff) {
2832 goto bad_param;
2833 }
2834
2835 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,
2836 dcnt);
2837 }
2838
2839 if ((state->received_param < state->total_param) ||
2840 (state->received_data < state->total_data)) {
2841 END_PROFILE(SMBnttranss);
2842 return;
2843 }
2844
2845 /*
2846 * construct_reply_common will copy smb_com from inbuf to
2847 * outbuf. SMBnttranss is wrong here.
2848 */
2849 SCVAL(req->inbuf,smb_com,SMBnttrans);
2850
2851 handle_nttrans(conn, state, req);
2852
2853 DLIST_REMOVE(conn->pending_trans, state);
2854 SAFE_FREE(state->data);
2855 SAFE_FREE(state->param);
2856 TALLOC_FREE(state);
2857 END_PROFILE(SMBnttranss);
2858 return;
2859
2860 bad_param:
2861
2862 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
2863 DLIST_REMOVE(conn->pending_trans, state);
2864 SAFE_FREE(state->data);
2865 SAFE_FREE(state->param);
2866 TALLOC_FREE(state);
2867 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2868 END_PROFILE(SMBnttranss);
2869 return;
2870 }