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Remove a bunch of direct inbuf references by adding "buf" to smb_request
[Samba.git] / source3 / smbd / nttrans.c
blobdace8f6d8c22c316532d0c8ec90ae7ade1745a33
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 char *msg = talloc_asprintf(
97 talloc_tos(),
98 "send_nt_replies failed sanity useable_space = %d!!!",
99 useable_space);
100 DEBUG(0, ("%s\n", msg));
101 exit_server_cleanly(msg);
102 }
103
104 while (params_to_send || data_to_send) {
105
106 /*
107 * Calculate whether we will totally or partially fill this packet.
108 */
109
110 total_sent_thistime = params_to_send + data_to_send;
111
112 /*
113 * We can never send more than useable_space.
114 */
115
116 total_sent_thistime = MIN(total_sent_thistime, useable_space);
117
118 reply_outbuf(req, 18,
119 total_sent_thistime + alignment_offset
120 + data_alignment_offset);
121
122 /*
123 * Set total params and data to be sent.
124 */
125
126 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
127 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
128
129 /*
130 * Calculate how many parameters and data we can fit into
131 * this packet. Parameters get precedence.
132 */
133
134 params_sent_thistime = MIN(params_to_send,useable_space);
135 data_sent_thistime = useable_space - params_sent_thistime;
136 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
137
138 SIVAL(req->outbuf, smb_ntr_ParameterCount,
139 params_sent_thistime);
140
141 if(params_sent_thistime == 0) {
142 SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
143 SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
144 } else {
145 /*
146 * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
147 * parameter bytes, however the first 4 bytes of outbuf are
148 * the Netbios over TCP header. Thus use smb_base() to subtract
149 * them from the calculation.
150 */
151
152 SIVAL(req->outbuf,smb_ntr_ParameterOffset,
153 ((smb_buf(req->outbuf)+alignment_offset)
154 - smb_base(req->outbuf)));
155 /*
156 * Absolute displacement of param bytes sent in this packet.
157 */
158
159 SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
160 pp - params);
161 }
162
163 /*
164 * Deal with the data portion.
165 */
166
167 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
168
169 if(data_sent_thistime == 0) {
170 SIVAL(req->outbuf,smb_ntr_DataOffset,0);
171 SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
172 } else {
173 /*
174 * The offset of the data bytes is the offset of the
175 * parameter bytes plus the number of parameters being sent this time.
176 */
177
178 SIVAL(req->outbuf, smb_ntr_DataOffset,
179 ((smb_buf(req->outbuf)+alignment_offset) -
180 smb_base(req->outbuf))
181 + params_sent_thistime + data_alignment_offset);
182 SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
183 }
184
185 /*
186 * Copy the param bytes into the packet.
187 */
188
189 if(params_sent_thistime) {
190 if (alignment_offset != 0) {
191 memset(smb_buf(req->outbuf), 0,
192 alignment_offset);
193 }
194 memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
195 params_sent_thistime);
196 }
197
198 /*
199 * Copy in the data bytes
200 */
201
202 if(data_sent_thistime) {
203 if (data_alignment_offset != 0) {
204 memset((smb_buf(req->outbuf)+alignment_offset+
205 params_sent_thistime), 0,
206 data_alignment_offset);
207 }
208 memcpy(smb_buf(req->outbuf)+alignment_offset
209 +params_sent_thistime+data_alignment_offset,
210 pd,data_sent_thistime);
211 }
212
213 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
214 params_sent_thistime, data_sent_thistime, useable_space));
215 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
216 params_to_send, data_to_send, paramsize, datasize));
217
218 if (NT_STATUS_V(nt_error)) {
219 error_packet_set((char *)req->outbuf,
220 0, 0, nt_error,
221 __LINE__,__FILE__);
222 }
223
224 /* Send the packet */
225 show_msg((char *)req->outbuf);
226 if (!srv_send_smb(smbd_server_fd(),
227 (char *)req->outbuf,
228 IS_CONN_ENCRYPTED(conn))) {
229 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
230 }
231
232 TALLOC_FREE(req->outbuf);
233
234 pp += params_sent_thistime;
235 pd += data_sent_thistime;
236
237 params_to_send -= params_sent_thistime;
238 data_to_send -= data_sent_thistime;
239
240 /*
241 * Sanity check
242 */
243
244 if(params_to_send < 0 || data_to_send < 0) {
245 DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
246 params_to_send, data_to_send));
247 exit_server_cleanly("send_nt_replies: internal error");
248 }
249 }
250 }
251
252 /****************************************************************************
253 Is it an NTFS stream name ?
254 An NTFS file name is <path>.<extention>:<stream name>:<stream type>
255 $DATA can be used as both a stream name and a stream type. A missing stream
256 name or type implies $DATA.
257 ****************************************************************************/
258
259 bool is_ntfs_stream_name(const char *fname)
260 {
261 if (lp_posix_pathnames()) {
262 return False;
263 }
264 return (strchr_m(fname, ':') != NULL) ? True : False;
265 }
266
267 /****************************************************************************
268 Reply to an NT create and X call on a pipe
269 ****************************************************************************/
270
271 static void nt_open_pipe(char *fname, connection_struct *conn,
272 struct smb_request *req, int *ppnum)
273 {
274 files_struct *fsp;
275 NTSTATUS status;
276
277 DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
278
279 /* Strip \\ off the name. */
280 fname++;
281
282 status = np_open(req, conn, fname, &fsp);
283 if (!NT_STATUS_IS_OK(status)) {
284 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
285 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
286 ERRDOS, ERRbadpipe);
287 return;
288 }
289 reply_nterror(req, status);
290 return;
291 }
292
293 *ppnum = fsp->fnum;
294 return;
295 }
296
297 /****************************************************************************
298 Reply to an NT create and X call for pipes.
299 ****************************************************************************/
300
301 static void do_ntcreate_pipe_open(connection_struct *conn,
302 struct smb_request *req)
303 {
304 char *fname = NULL;
305 int pnum = -1;
306 char *p = NULL;
307 uint32 flags = IVAL(req->inbuf,smb_ntcreate_Flags);
308 TALLOC_CTX *ctx = talloc_tos();
309
310 srvstr_pull_buf_talloc(ctx, (char *)req->inbuf, req->flags2, &fname,
311 req->buf, STR_TERMINATE);
312
313 if (!fname) {
314 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
315 ERRDOS, ERRbadpipe);
316 return;
317 }
318 nt_open_pipe(fname, conn, req, &pnum);
319
320 if (req->outbuf) {
321 /* error reply */
322 return;
323 }
324
325 /*
326 * Deal with pipe return.
327 */
328
329 if (flags & EXTENDED_RESPONSE_REQUIRED) {
330 /* This is very strange. We
331 * return 50 words, but only set
332 * the wcnt to 42 ? It's definately
333 * what happens on the wire....
334 */
335 reply_outbuf(req, 50, 0);
336 SCVAL(req->outbuf,smb_wct,42);
337 } else {
338 reply_outbuf(req, 34, 0);
339 }
340
341 p = (char *)req->outbuf + smb_vwv2;
342 p++;
343 SSVAL(p,0,pnum);
344 p += 2;
345 SIVAL(p,0,FILE_WAS_OPENED);
346 p += 4;
347 p += 32;
348 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
349 p += 20;
350 /* File type. */
351 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
352 /* Device state. */
353 SSVAL(p,2, 0x5FF); /* ? */
354 p += 4;
355
356 if (flags & EXTENDED_RESPONSE_REQUIRED) {
357 p += 25;
358 SIVAL(p,0,FILE_GENERIC_ALL);
359 /*
360 * For pipes W2K3 seems to return
361 * 0x12019B next.
362 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
363 */
364 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
365 }
366
367 DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
368
369 chain_reply(req);
370 }
371
372 /****************************************************************************
373 Reply to an NT create and X call.
374 ****************************************************************************/
375
376 void reply_ntcreate_and_X(struct smb_request *req)
377 {
378 connection_struct *conn = req->conn;
379 char *fname = NULL;
380 uint32 flags;
381 uint32 access_mask;
382 uint32 file_attributes;
383 uint32 share_access;
384 uint32 create_disposition;
385 uint32 create_options;
386 uint16 root_dir_fid;
387 uint64_t allocation_size;
388 /* Breakout the oplock request bits so we can set the
389 reply bits separately. */
390 uint32 fattr=0;
391 SMB_OFF_T file_len = 0;
392 SMB_STRUCT_STAT sbuf;
393 int info = 0;
394 files_struct *fsp = NULL;
395 char *p = NULL;
396 struct timespec c_timespec;
397 struct timespec a_timespec;
398 struct timespec m_timespec;
399 NTSTATUS status;
400 int oplock_request;
401 uint8_t oplock_granted = NO_OPLOCK_RETURN;
402 TALLOC_CTX *ctx = talloc_tos();
403
404 START_PROFILE(SMBntcreateX);
405
406 if (req->wct < 24) {
407 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
408 return;
409 }
410
411 flags = IVAL(req->inbuf,smb_ntcreate_Flags);
412 access_mask = IVAL(req->inbuf,smb_ntcreate_DesiredAccess);
413 file_attributes = IVAL(req->inbuf,smb_ntcreate_FileAttributes);
414 share_access = IVAL(req->inbuf,smb_ntcreate_ShareAccess);
415 create_disposition = IVAL(req->inbuf,smb_ntcreate_CreateDisposition);
416 create_options = IVAL(req->inbuf,smb_ntcreate_CreateOptions);
417 root_dir_fid = (uint16)IVAL(req->inbuf,smb_ntcreate_RootDirectoryFid);
418
419 allocation_size = (uint64_t)IVAL(req->inbuf,
420 smb_ntcreate_AllocationSize);
421 #ifdef LARGE_SMB_OFF_T
422 allocation_size |= (((uint64_t)IVAL(
423 req->inbuf,
424 smb_ntcreate_AllocationSize + 4)) << 32);
425 #endif
426
427 srvstr_get_path(ctx, (char *)req->inbuf, req->flags2, &fname,
428 (const char *)req->buf, 0, STR_TERMINATE, &status);
429
430 if (!NT_STATUS_IS_OK(status)) {
431 reply_nterror(req, status);
432 END_PROFILE(SMBntcreateX);
433 return;
434 }
435
436 DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
437 "file_attributes = 0x%x, share_access = 0x%x, "
438 "create_disposition = 0x%x create_options = 0x%x "
439 "root_dir_fid = 0x%x, fname = %s\n",
440 (unsigned int)flags,
441 (unsigned int)access_mask,
442 (unsigned int)file_attributes,
443 (unsigned int)share_access,
444 (unsigned int)create_disposition,
445 (unsigned int)create_options,
446 (unsigned int)root_dir_fid,
447 fname));
448
449 /*
450 * we need to remove ignored bits when they come directly from the client
451 * because we reuse some of them for internal stuff
452 */
453 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
454
455 /*
456 * If it's an IPC, use the pipe handler.
457 */
458
459 if (IS_IPC(conn)) {
460 if (lp_nt_pipe_support()) {
461 do_ntcreate_pipe_open(conn, req);
462 END_PROFILE(SMBntcreateX);
463 return;
464 }
465 reply_doserror(req, ERRDOS, ERRnoaccess);
466 END_PROFILE(SMBntcreateX);
467 return;
468 }
469
470 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
471 if (oplock_request) {
472 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
473 ? BATCH_OPLOCK : 0;
474 }
475
476 status = create_file(conn, req, root_dir_fid, fname,
477 access_mask, share_access, create_disposition,
478 create_options, file_attributes, oplock_request,
479 allocation_size, NULL, NULL, &fsp, &info, &sbuf);
480
481 if (!NT_STATUS_IS_OK(status)) {
482 if (open_was_deferred(req->mid)) {
483 /* We have re-scheduled this call, no error. */
484 END_PROFILE(SMBntcreateX);
485 return;
486 }
487 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_COLLISION)) {
488 reply_botherror(req, status, ERRDOS, ERRfilexists);
489 }
490 else {
491 reply_nterror(req, status);
492 }
493 END_PROFILE(SMBntcreateX);
494 return;
495 }
496
497 /*
498 * If the caller set the extended oplock request bit
499 * and we granted one (by whatever means) - set the
500 * correct bit for extended oplock reply.
501 */
502
503 if (oplock_request &&
504 (lp_fake_oplocks(SNUM(conn))
505 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
506
507 /*
508 * Exclusive oplock granted
509 */
510
511 if (flags & REQUEST_BATCH_OPLOCK) {
512 oplock_granted = BATCH_OPLOCK_RETURN;
513 } else {
514 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
515 }
516 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
517 oplock_granted = LEVEL_II_OPLOCK_RETURN;
518 } else {
519 oplock_granted = NO_OPLOCK_RETURN;
520 }
521
522 file_len = sbuf.st_size;
523 fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
524 if (fattr == 0) {
525 fattr = FILE_ATTRIBUTE_NORMAL;
526 }
527
528 if (flags & EXTENDED_RESPONSE_REQUIRED) {
529 /* This is very strange. We
530 * return 50 words, but only set
531 * the wcnt to 42 ? It's definately
532 * what happens on the wire....
533 */
534 reply_outbuf(req, 50, 0);
535 SCVAL(req->outbuf,smb_wct,42);
536 } else {
537 reply_outbuf(req, 34, 0);
538 }
539
540 p = (char *)req->outbuf + smb_vwv2;
541
542 SCVAL(p, 0, oplock_granted);
543
544 p++;
545 SSVAL(p,0,fsp->fnum);
546 p += 2;
547 if ((create_disposition == FILE_SUPERSEDE)
548 && (info == FILE_WAS_OVERWRITTEN)) {
549 SIVAL(p,0,FILE_WAS_SUPERSEDED);
550 } else {
551 SIVAL(p,0,info);
552 }
553 p += 4;
554
555 /* Create time. */
556 c_timespec = get_create_timespec(
557 &sbuf,lp_fake_dir_create_times(SNUM(conn)));
558 a_timespec = get_atimespec(&sbuf);
559 m_timespec = get_mtimespec(&sbuf);
560
561 if (lp_dos_filetime_resolution(SNUM(conn))) {
562 dos_filetime_timespec(&c_timespec);
563 dos_filetime_timespec(&a_timespec);
564 dos_filetime_timespec(&m_timespec);
565 }
566
567 put_long_date_timespec(p, c_timespec); /* create time. */
568 p += 8;
569 put_long_date_timespec(p, a_timespec); /* access time */
570 p += 8;
571 put_long_date_timespec(p, m_timespec); /* write time */
572 p += 8;
573 put_long_date_timespec(p, m_timespec); /* change time */
574 p += 8;
575 SIVAL(p,0,fattr); /* File Attributes. */
576 p += 4;
577 SOFF_T(p, 0, get_allocation_size(conn,fsp,&sbuf));
578 p += 8;
579 SOFF_T(p,0,file_len);
580 p += 8;
581 if (flags & EXTENDED_RESPONSE_REQUIRED) {
582 SSVAL(p,2,0x7);
583 }
584 p += 4;
585 SCVAL(p,0,fsp->is_directory ? 1 : 0);
586
587 if (flags & EXTENDED_RESPONSE_REQUIRED) {
588 uint32 perms = 0;
589 p += 25;
590 if (fsp->is_directory
591 || can_write_to_file(conn, fsp->fsp_name, &sbuf)) {
592 perms = FILE_GENERIC_ALL;
593 } else {
594 perms = FILE_GENERIC_READ|FILE_EXECUTE;
595 }
596 SIVAL(p,0,perms);
597 }
598
599 DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
600 fsp->fnum, fsp->fsp_name));
601
602 chain_reply(req);
603 END_PROFILE(SMBntcreateX);
604 return;
605 }
606
607 /****************************************************************************
608 Reply to a NT_TRANSACT_CREATE call to open a pipe.
609 ****************************************************************************/
610
611 static void do_nt_transact_create_pipe(connection_struct *conn,
612 struct smb_request *req,
613 uint16 **ppsetup, uint32 setup_count,
614 char **ppparams, uint32 parameter_count,
615 char **ppdata, uint32 data_count)
616 {
617 char *fname = NULL;
618 char *params = *ppparams;
619 int pnum = -1;
620 char *p = NULL;
621 NTSTATUS status;
622 size_t param_len;
623 uint32 flags;
624 TALLOC_CTX *ctx = talloc_tos();
625
626 /*
627 * Ensure minimum number of parameters sent.
628 */
629
630 if(parameter_count < 54) {
631 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
632 reply_doserror(req, ERRDOS, ERRnoaccess);
633 return;
634 }
635
636 flags = IVAL(params,0);
637
638 srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
639 parameter_count-53, STR_TERMINATE,
640 &status);
641 if (!NT_STATUS_IS_OK(status)) {
642 reply_nterror(req, status);
643 return;
644 }
645
646 nt_open_pipe(fname, conn, req, &pnum);
647
648 if (req->outbuf) {
649 /* Error return */
650 return;
651 }
652
653 /* Realloc the size of parameters and data we will return */
654 if (flags & EXTENDED_RESPONSE_REQUIRED) {
655 /* Extended response is 32 more byyes. */
656 param_len = 101;
657 } else {
658 param_len = 69;
659 }
660 params = nttrans_realloc(ppparams, param_len);
661 if(params == NULL) {
662 reply_doserror(req, ERRDOS, ERRnomem);
663 return;
664 }
665
666 p = params;
667 SCVAL(p,0,NO_OPLOCK_RETURN);
668
669 p += 2;
670 SSVAL(p,0,pnum);
671 p += 2;
672 SIVAL(p,0,FILE_WAS_OPENED);
673 p += 8;
674
675 p += 32;
676 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
677 p += 20;
678 /* File type. */
679 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
680 /* Device state. */
681 SSVAL(p,2, 0x5FF); /* ? */
682 p += 4;
683
684 if (flags & EXTENDED_RESPONSE_REQUIRED) {
685 p += 25;
686 SIVAL(p,0,FILE_GENERIC_ALL);
687 /*
688 * For pipes W2K3 seems to return
689 * 0x12019B next.
690 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
691 */
692 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
693 }
694
695 DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
696
697 /* Send the required number of replies */
698 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
699
700 return;
701 }
702
703 /****************************************************************************
704 Internal fn to set security descriptors.
705 ****************************************************************************/
706
707 static NTSTATUS set_sd(files_struct *fsp, uint8 *data, uint32 sd_len,
708 uint32 security_info_sent)
709 {
710 SEC_DESC *psd = NULL;
711 NTSTATUS status;
712
713 if (sd_len == 0 || !lp_nt_acl_support(SNUM(fsp->conn))) {
714 return NT_STATUS_OK;
715 }
716
717 status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
718
719 if (!NT_STATUS_IS_OK(status)) {
720 return status;
721 }
722
723 if (psd->owner_sid==0) {
724 security_info_sent &= ~OWNER_SECURITY_INFORMATION;
725 }
726 if (psd->group_sid==0) {
727 security_info_sent &= ~GROUP_SECURITY_INFORMATION;
728 }
729 if (psd->sacl==0) {
730 security_info_sent &= ~SACL_SECURITY_INFORMATION;
731 }
732 if (psd->dacl==0) {
733 security_info_sent &= ~DACL_SECURITY_INFORMATION;
734 }
735
736 /* Convert all the generic bits. */
737 security_acl_map_generic(psd->dacl, &file_generic_mapping);
738 security_acl_map_generic(psd->sacl, &file_generic_mapping);
739
740 status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
741
742 TALLOC_FREE(psd);
743
744 return status;
745 }
746
747 /****************************************************************************
748 Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
749 ****************************************************************************/
750
751 static struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
752 {
753 struct ea_list *ea_list_head = NULL;
754 size_t offset = 0;
755
756 if (data_size < 4) {
757 return NULL;
758 }
759
760 while (offset + 4 <= data_size) {
761 size_t next_offset = IVAL(pdata,offset);
762 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
763
764 if (!eal) {
765 return NULL;
766 }
767
768 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
769 if (next_offset == 0) {
770 break;
771 }
772 offset += next_offset;
773 }
774
775 return ea_list_head;
776 }
777
778 /****************************************************************************
779 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
780 ****************************************************************************/
781
782 static void call_nt_transact_create(connection_struct *conn,
783 struct smb_request *req,
784 uint16 **ppsetup, uint32 setup_count,
785 char **ppparams, uint32 parameter_count,
786 char **ppdata, uint32 data_count,
787 uint32 max_data_count)
788 {
789 char *fname = NULL;
790 char *params = *ppparams;
791 char *data = *ppdata;
792 /* Breakout the oplock request bits so we can set the reply bits separately. */
793 uint32 fattr=0;
794 SMB_OFF_T file_len = 0;
795 SMB_STRUCT_STAT sbuf;
796 int info = 0;
797 files_struct *fsp = NULL;
798 char *p = NULL;
799 uint32 flags;
800 uint32 access_mask;
801 uint32 file_attributes;
802 uint32 share_access;
803 uint32 create_disposition;
804 uint32 create_options;
805 uint32 sd_len;
806 struct security_descriptor *sd = NULL;
807 uint32 ea_len;
808 uint16 root_dir_fid;
809 struct timespec c_timespec;
810 struct timespec a_timespec;
811 struct timespec m_timespec;
812 struct ea_list *ea_list = NULL;
813 NTSTATUS status;
814 size_t param_len;
815 uint64_t allocation_size;
816 int oplock_request;
817 uint8_t oplock_granted;
818 TALLOC_CTX *ctx = talloc_tos();
819
820 DEBUG(5,("call_nt_transact_create\n"));
821
822 /*
823 * If it's an IPC, use the pipe handler.
824 */
825
826 if (IS_IPC(conn)) {
827 if (lp_nt_pipe_support()) {
828 do_nt_transact_create_pipe(
829 conn, req,
830 ppsetup, setup_count,
831 ppparams, parameter_count,
832 ppdata, data_count);
833 return;
834 }
835 reply_doserror(req, ERRDOS, ERRnoaccess);
836 return;
837 }
838
839 /*
840 * Ensure minimum number of parameters sent.
841 */
842
843 if(parameter_count < 54) {
844 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
845 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
846 return;
847 }
848
849 flags = IVAL(params,0);
850 access_mask = IVAL(params,8);
851 file_attributes = IVAL(params,20);
852 share_access = IVAL(params,24);
853 create_disposition = IVAL(params,28);
854 create_options = IVAL(params,32);
855 sd_len = IVAL(params,36);
856 ea_len = IVAL(params,40);
857 root_dir_fid = (uint16)IVAL(params,4);
858 allocation_size = (uint64_t)IVAL(params,12);
859 #ifdef LARGE_SMB_OFF_T
860 allocation_size |= (((uint64_t)IVAL(params,16)) << 32);
861 #endif
862
863 /*
864 * we need to remove ignored bits when they come directly from the client
865 * because we reuse some of them for internal stuff
866 */
867 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
868
869 /* Ensure the data_len is correct for the sd and ea values given. */
870 if ((ea_len + sd_len > data_count)
871 || (ea_len > data_count) || (sd_len > data_count)
872 || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
873 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
874 "%u, data_count = %u\n", (unsigned int)ea_len,
875 (unsigned int)sd_len, (unsigned int)data_count));
876 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
877 return;
878 }
879
880 if (sd_len) {
881 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
882 sd_len));
883
884 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
885 &sd);
886 if (!NT_STATUS_IS_OK(status)) {
887 DEBUG(10, ("call_nt_transact_create: "
888 "unmarshall_sec_desc failed: %s\n",
889 nt_errstr(status)));
890 reply_nterror(req, status);
891 return;
892 }
893 }
894
895 if (ea_len) {
896 if (!lp_ea_support(SNUM(conn))) {
897 DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
898 "EA's not supported.\n",
899 (unsigned int)ea_len));
900 reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
901 return;
902 }
903
904 if (ea_len < 10) {
905 DEBUG(10,("call_nt_transact_create - ea_len = %u - "
906 "too small (should be more than 10)\n",
907 (unsigned int)ea_len ));
908 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
909 return;
910 }
911
912 /* We have already checked that ea_len <= data_count here. */
913 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
914 ea_len);
915 if (ea_list == NULL) {
916 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
917 return;
918 }
919 }
920
921 srvstr_get_path(ctx, params, req->flags2, &fname,
922 params+53, parameter_count-53,
923 STR_TERMINATE, &status);
924 if (!NT_STATUS_IS_OK(status)) {
925 reply_nterror(req, status);
926 return;
927 }
928
929 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
930 if (oplock_request) {
931 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
932 ? BATCH_OPLOCK : 0;
933 }
934
935 status = create_file(conn, req, root_dir_fid, fname,
936 access_mask, share_access, create_disposition,
937 create_options, file_attributes, oplock_request,
938 allocation_size, sd, ea_list, &fsp, &info, &sbuf);
939
940 if(!NT_STATUS_IS_OK(status)) {
941 if (open_was_deferred(req->mid)) {
942 /* We have re-scheduled this call, no error. */
943 return;
944 }
945 reply_openerror(req, status);
946 return;
947 }
948
949 /*
950 * If the caller set the extended oplock request bit
951 * and we granted one (by whatever means) - set the
952 * correct bit for extended oplock reply.
953 */
954
955 if (oplock_request &&
956 (lp_fake_oplocks(SNUM(conn))
957 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
958
959 /*
960 * Exclusive oplock granted
961 */
962
963 if (flags & REQUEST_BATCH_OPLOCK) {
964 oplock_granted = BATCH_OPLOCK_RETURN;
965 } else {
966 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
967 }
968 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
969 oplock_granted = LEVEL_II_OPLOCK_RETURN;
970 } else {
971 oplock_granted = NO_OPLOCK_RETURN;
972 }
973
974 file_len = sbuf.st_size;
975 fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
976 if (fattr == 0) {
977 fattr = FILE_ATTRIBUTE_NORMAL;
978 }
979
980 /* Realloc the size of parameters and data we will return */
981 if (flags & EXTENDED_RESPONSE_REQUIRED) {
982 /* Extended response is 32 more byyes. */
983 param_len = 101;
984 } else {
985 param_len = 69;
986 }
987 params = nttrans_realloc(ppparams, param_len);
988 if(params == NULL) {
989 reply_doserror(req, ERRDOS, ERRnomem);
990 return;
991 }
992
993 p = params;
994 SCVAL(p, 0, oplock_granted);
995
996 p += 2;
997 SSVAL(p,0,fsp->fnum);
998 p += 2;
999 if ((create_disposition == FILE_SUPERSEDE)
1000 && (info == FILE_WAS_OVERWRITTEN)) {
1001 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1002 } else {
1003 SIVAL(p,0,info);
1004 }
1005 p += 8;
1006
1007 /* Create time. */
1008 c_timespec = get_create_timespec(
1009 &sbuf,lp_fake_dir_create_times(SNUM(conn)));
1010 a_timespec = get_atimespec(&sbuf);
1011 m_timespec = get_mtimespec(&sbuf);
1012
1013 if (lp_dos_filetime_resolution(SNUM(conn))) {
1014 dos_filetime_timespec(&c_timespec);
1015 dos_filetime_timespec(&a_timespec);
1016 dos_filetime_timespec(&m_timespec);
1017 }
1018
1019 put_long_date_timespec(p, c_timespec); /* create time. */
1020 p += 8;
1021 put_long_date_timespec(p, a_timespec); /* access time */
1022 p += 8;
1023 put_long_date_timespec(p, m_timespec); /* write time */
1024 p += 8;
1025 put_long_date_timespec(p, m_timespec); /* change time */
1026 p += 8;
1027 SIVAL(p,0,fattr); /* File Attributes. */
1028 p += 4;
1029 SOFF_T(p, 0, get_allocation_size(conn,fsp,&sbuf));
1030 p += 8;
1031 SOFF_T(p,0,file_len);
1032 p += 8;
1033 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1034 SSVAL(p,2,0x7);
1035 }
1036 p += 4;
1037 SCVAL(p,0,fsp->is_directory ? 1 : 0);
1038
1039 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1040 uint32 perms = 0;
1041 p += 25;
1042 if (fsp->is_directory
1043 || can_write_to_file(conn, fsp->fsp_name, &sbuf)) {
1044 perms = FILE_GENERIC_ALL;
1045 } else {
1046 perms = FILE_GENERIC_READ|FILE_EXECUTE;
1047 }
1048 SIVAL(p,0,perms);
1049 }
1050
1051 DEBUG(5,("call_nt_transact_create: open name = %s\n", fsp->fsp_name));
1052
1053 /* Send the required number of replies */
1054 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1055
1056 return;
1057 }
1058
1059 /****************************************************************************
1060 Reply to a NT CANCEL request.
1061 conn POINTER CAN BE NULL HERE !
1062 ****************************************************************************/
1063
1064 void reply_ntcancel(struct smb_request *req)
1065 {
1066 /*
1067 * Go through and cancel any pending change notifies.
1068 */
1069
1070 START_PROFILE(SMBntcancel);
1071 remove_pending_change_notify_requests_by_mid(req->mid);
1072 remove_pending_lock_requests_by_mid(req->mid);
1073 srv_cancel_sign_response(req->mid);
1074
1075 DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", req->mid));
1076
1077 END_PROFILE(SMBntcancel);
1078 return;
1079 }
1080
1081 /****************************************************************************
1082 Copy a file.
1083 ****************************************************************************/
1084
1085 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1086 connection_struct *conn,
1087 struct smb_request *req,
1088 const char *oldname_in,
1089 const char *newname_in,
1090 uint32 attrs)
1091 {
1092 SMB_STRUCT_STAT sbuf1, sbuf2;
1093 char *oldname = NULL;
1094 char *newname = NULL;
1095 char *last_component_oldname = NULL;
1096 char *last_component_newname = NULL;
1097 files_struct *fsp1,*fsp2;
1098 uint32 fattr;
1099 int info;
1100 SMB_OFF_T ret=-1;
1101 NTSTATUS status = NT_STATUS_OK;
1102
1103 ZERO_STRUCT(sbuf1);
1104 ZERO_STRUCT(sbuf2);
1105
1106 if (!CAN_WRITE(conn)) {
1107 return NT_STATUS_MEDIA_WRITE_PROTECTED;
1108 }
1109
1110 status = unix_convert(ctx, conn, oldname_in, False, &oldname,
1111 &last_component_oldname, &sbuf1);
1112 if (!NT_STATUS_IS_OK(status)) {
1113 return status;
1114 }
1115
1116 status = check_name(conn, oldname);
1117 if (!NT_STATUS_IS_OK(status)) {
1118 return status;
1119 }
1120
1121 /* Source must already exist. */
1122 if (!VALID_STAT(sbuf1)) {
1123 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
1124 }
1125 /* Ensure attributes match. */
1126 fattr = dos_mode(conn,oldname,&sbuf1);
1127 if ((fattr & ~attrs) & (aHIDDEN | aSYSTEM)) {
1128 return NT_STATUS_NO_SUCH_FILE;
1129 }
1130
1131 status = unix_convert(ctx, conn, newname_in, False, &newname,
1132 &last_component_newname, &sbuf2);
1133 if (!NT_STATUS_IS_OK(status)) {
1134 return status;
1135 }
1136
1137 status = check_name(conn, newname);
1138 if (!NT_STATUS_IS_OK(status)) {
1139 return status;
1140 }
1141
1142 /* Disallow if newname already exists. */
1143 if (VALID_STAT(sbuf2)) {
1144 return NT_STATUS_OBJECT_NAME_COLLISION;
1145 }
1146
1147 /* No links from a directory. */
1148 if (S_ISDIR(sbuf1.st_mode)) {
1149 return NT_STATUS_FILE_IS_A_DIRECTORY;
1150 }
1151
1152 /* Ensure this is within the share. */
1153 status = check_reduced_name(conn, oldname);
1154 if (!NT_STATUS_IS_OK(status)) {
1155 return status;
1156 }
1157
1158 DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1159 oldname, newname));
1160
1161 status = open_file_ntcreate(conn, req, oldname, &sbuf1,
1162 FILE_READ_DATA, /* Read-only. */
1163 FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
1164 FILE_OPEN,
1165 0, /* No create options. */
1166 FILE_ATTRIBUTE_NORMAL,
1167 NO_OPLOCK,
1168 &info, &fsp1);
1169
1170 if (!NT_STATUS_IS_OK(status)) {
1171 return status;
1172 }
1173
1174 status = open_file_ntcreate(conn, req, newname, &sbuf2,
1175 FILE_WRITE_DATA, /* Read-only. */
1176 FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
1177 FILE_CREATE,
1178 0, /* No create options. */
1179 fattr,
1180 NO_OPLOCK,
1181 &info, &fsp2);
1182
1183 if (!NT_STATUS_IS_OK(status)) {
1184 close_file(NULL, fsp1, ERROR_CLOSE);
1185 return status;
1186 }
1187
1188 if (sbuf1.st_size) {
1189 ret = vfs_transfer_file(fsp1, fsp2, sbuf1.st_size);
1190 }
1191
1192 /*
1193 * As we are opening fsp1 read-only we only expect
1194 * an error on close on fsp2 if we are out of space.
1195 * Thus we don't look at the error return from the
1196 * close of fsp1.
1197 */
1198 close_file(NULL, fsp1, NORMAL_CLOSE);
1199
1200 /* Ensure the modtime is set correctly on the destination file. */
1201 set_close_write_time(fsp2, get_mtimespec(&sbuf1));
1202
1203 status = close_file(NULL, fsp2, NORMAL_CLOSE);
1204
1205 /* Grrr. We have to do this as open_file_ntcreate adds aARCH when it
1206 creates the file. This isn't the correct thing to do in the copy
1207 case. JRA */
1208 file_set_dosmode(conn, newname, fattr, &sbuf2,
1209 parent_dirname(newname),false);
1210
1211 if (ret < (SMB_OFF_T)sbuf1.st_size) {
1212 return NT_STATUS_DISK_FULL;
1213 }
1214
1215 if (!NT_STATUS_IS_OK(status)) {
1216 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1217 nt_errstr(status), oldname, newname));
1218 }
1219 return status;
1220 }
1221
1222 /****************************************************************************
1223 Reply to a NT rename request.
1224 ****************************************************************************/
1225
1226 void reply_ntrename(struct smb_request *req)
1227 {
1228 connection_struct *conn = req->conn;
1229 char *oldname = NULL;
1230 char *newname = NULL;
1231 const char *p;
1232 NTSTATUS status;
1233 bool src_has_wcard = False;
1234 bool dest_has_wcard = False;
1235 uint32 attrs;
1236 uint16 rename_type;
1237 TALLOC_CTX *ctx = talloc_tos();
1238
1239 START_PROFILE(SMBntrename);
1240
1241 if (req->wct < 4) {
1242 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1243 END_PROFILE(SMBntrename);
1244 return;
1245 }
1246
1247 attrs = SVAL(req->inbuf,smb_vwv0);
1248 rename_type = SVAL(req->inbuf,smb_vwv1);
1249
1250 p = (const char *)req->buf + 1;
1251 p += srvstr_get_path_wcard(ctx, (char *)req->inbuf, req->flags2, &oldname, p,
1252 0, STR_TERMINATE, &status,
1253 &src_has_wcard);
1254 if (!NT_STATUS_IS_OK(status)) {
1255 reply_nterror(req, status);
1256 END_PROFILE(SMBntrename);
1257 return;
1258 }
1259
1260 if( is_ntfs_stream_name(oldname)) {
1261 /* Can't rename a stream. */
1262 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1263 END_PROFILE(SMBntrename);
1264 return;
1265 }
1266
1267 if (ms_has_wild(oldname)) {
1268 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1269 END_PROFILE(SMBntrename);
1270 return;
1271 }
1272
1273 p++;
1274 p += srvstr_get_path_wcard(ctx, (char *)req->inbuf, req->flags2, &newname, p,
1275 0, STR_TERMINATE, &status,
1276 &dest_has_wcard);
1277 if (!NT_STATUS_IS_OK(status)) {
1278 reply_nterror(req, status);
1279 END_PROFILE(SMBntrename);
1280 return;
1281 }
1282
1283 status = resolve_dfspath(ctx, conn,
1284 req->flags2 & FLAGS2_DFS_PATHNAMES,
1285 oldname,
1286 &oldname);
1287 if (!NT_STATUS_IS_OK(status)) {
1288 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1289 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1290 ERRSRV, ERRbadpath);
1291 END_PROFILE(SMBntrename);
1292 return;
1293 }
1294 reply_nterror(req, status);
1295 END_PROFILE(SMBntrename);
1296 return;
1297 }
1298
1299 status = resolve_dfspath(ctx, conn,
1300 req->flags2 & FLAGS2_DFS_PATHNAMES,
1301 newname,
1302 &newname);
1303 if (!NT_STATUS_IS_OK(status)) {
1304 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1305 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1306 ERRSRV, ERRbadpath);
1307 END_PROFILE(SMBntrename);
1308 return;
1309 }
1310 reply_nterror(req, status);
1311 END_PROFILE(SMBntrename);
1312 return;
1313 }
1314
1315 DEBUG(3,("reply_ntrename : %s -> %s\n",oldname,newname));
1316
1317 switch(rename_type) {
1318 case RENAME_FLAG_RENAME:
1319 status = rename_internals(ctx, conn, req, oldname,
1320 newname, attrs, False, src_has_wcard,
1321 dest_has_wcard, DELETE_ACCESS);
1322 break;
1323 case RENAME_FLAG_HARD_LINK:
1324 if (src_has_wcard || dest_has_wcard) {
1325 /* No wildcards. */
1326 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1327 } else {
1328 status = hardlink_internals(ctx,
1329 conn,
1330 oldname,
1331 newname);
1332 }
1333 break;
1334 case RENAME_FLAG_COPY:
1335 if (src_has_wcard || dest_has_wcard) {
1336 /* No wildcards. */
1337 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1338 } else {
1339 status = copy_internals(ctx, conn, req, oldname,
1340 newname, attrs);
1341 }
1342 break;
1343 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1344 status = NT_STATUS_INVALID_PARAMETER;
1345 break;
1346 default:
1347 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1348 break;
1349 }
1350
1351 if (!NT_STATUS_IS_OK(status)) {
1352 if (open_was_deferred(req->mid)) {
1353 /* We have re-scheduled this call. */
1354 END_PROFILE(SMBntrename);
1355 return;
1356 }
1357
1358 reply_nterror(req, status);
1359 END_PROFILE(SMBntrename);
1360 return;
1361 }
1362
1363 reply_outbuf(req, 0, 0);
1364
1365 END_PROFILE(SMBntrename);
1366 return;
1367 }
1368
1369 /****************************************************************************
1370 Reply to a notify change - queue the request and
1371 don't allow a directory to be opened.
1372 ****************************************************************************/
1373
1374 static void call_nt_transact_notify_change(connection_struct *conn,
1375 struct smb_request *req,
1376 uint16 **ppsetup,
1377 uint32 setup_count,
1378 char **ppparams,
1379 uint32 parameter_count,
1380 char **ppdata, uint32 data_count,
1381 uint32 max_data_count,
1382 uint32 max_param_count)
1383 {
1384 uint16 *setup = *ppsetup;
1385 files_struct *fsp;
1386 uint32 filter;
1387 NTSTATUS status;
1388 bool recursive;
1389
1390 if(setup_count < 6) {
1391 reply_doserror(req, ERRDOS, ERRbadfunc);
1392 return;
1393 }
1394
1395 fsp = file_fsp(req, SVAL(setup,4));
1396 filter = IVAL(setup, 0);
1397 recursive = (SVAL(setup, 6) != 0) ? True : False;
1398
1399 DEBUG(3,("call_nt_transact_notify_change\n"));
1400
1401 if(!fsp) {
1402 reply_doserror(req, ERRDOS, ERRbadfid);
1403 return;
1404 }
1405
1406 {
1407 char *filter_string;
1408
1409 if (!(filter_string = notify_filter_string(NULL, filter))) {
1410 reply_nterror(req,NT_STATUS_NO_MEMORY);
1411 return;
1412 }
1413
1414 DEBUG(3,("call_nt_transact_notify_change: notify change "
1415 "called on %s, filter = %s, recursive = %d\n",
1416 fsp->fsp_name, filter_string, recursive));
1417
1418 TALLOC_FREE(filter_string);
1419 }
1420
1421 if((!fsp->is_directory) || (conn != fsp->conn)) {
1422 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1423 return;
1424 }
1425
1426 if (fsp->notify == NULL) {
1427
1428 status = change_notify_create(fsp, filter, recursive);
1429
1430 if (!NT_STATUS_IS_OK(status)) {
1431 DEBUG(10, ("change_notify_create returned %s\n",
1432 nt_errstr(status)));
1433 reply_nterror(req, status);
1434 return;
1435 }
1436 }
1437
1438 if (fsp->notify->num_changes != 0) {
1439
1440 /*
1441 * We've got changes pending, respond immediately
1442 */
1443
1444 /*
1445 * TODO: write a torture test to check the filtering behaviour
1446 * here.
1447 */
1448
1449 change_notify_reply(fsp->conn, req->inbuf, max_param_count, fsp->notify);
1450
1451 /*
1452 * change_notify_reply() above has independently sent its
1453 * results
1454 */
1455 return;
1456 }
1457
1458 /*
1459 * No changes pending, queue the request
1460 */
1461
1462 status = change_notify_add_request(req,
1463 max_param_count,
1464 filter,
1465 recursive, fsp);
1466 if (!NT_STATUS_IS_OK(status)) {
1467 reply_nterror(req, status);
1468 }
1469 return;
1470 }
1471
1472 /****************************************************************************
1473 Reply to an NT transact rename command.
1474 ****************************************************************************/
1475
1476 static void call_nt_transact_rename(connection_struct *conn,
1477 struct smb_request *req,
1478 uint16 **ppsetup, uint32 setup_count,
1479 char **ppparams, uint32 parameter_count,
1480 char **ppdata, uint32 data_count,
1481 uint32 max_data_count)
1482 {
1483 char *params = *ppparams;
1484 char *new_name = NULL;
1485 files_struct *fsp = NULL;
1486 bool dest_has_wcard = False;
1487 NTSTATUS status;
1488 TALLOC_CTX *ctx = talloc_tos();
1489
1490 if(parameter_count < 5) {
1491 reply_doserror(req, ERRDOS, ERRbadfunc);
1492 return;
1493 }
1494
1495 fsp = file_fsp(req, SVAL(params, 0));
1496 if (!check_fsp(conn, req, fsp)) {
1497 return;
1498 }
1499 srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1500 parameter_count - 4,
1501 STR_TERMINATE, &status, &dest_has_wcard);
1502 if (!NT_STATUS_IS_OK(status)) {
1503 reply_nterror(req, status);
1504 return;
1505 }
1506
1507 /*
1508 * W2K3 ignores this request as the RAW-RENAME test
1509 * demonstrates, so we do.
1510 */
1511 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1512
1513 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1514 fsp->fsp_name, new_name));
1515
1516 return;
1517 }
1518
1519 /******************************************************************************
1520 Fake up a completely empty SD.
1521 *******************************************************************************/
1522
1523 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
1524 {
1525 size_t sd_size;
1526
1527 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1528 if(!*ppsd) {
1529 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1530 return NT_STATUS_NO_MEMORY;
1531 }
1532
1533 return NT_STATUS_OK;
1534 }
1535
1536 /****************************************************************************
1537 Reply to query a security descriptor.
1538 ****************************************************************************/
1539
1540 static void call_nt_transact_query_security_desc(connection_struct *conn,
1541 struct smb_request *req,
1542 uint16 **ppsetup,
1543 uint32 setup_count,
1544 char **ppparams,
1545 uint32 parameter_count,
1546 char **ppdata,
1547 uint32 data_count,
1548 uint32 max_data_count)
1549 {
1550 char *params = *ppparams;
1551 char *data = *ppdata;
1552 SEC_DESC *psd = NULL;
1553 size_t sd_size;
1554 uint32 security_info_wanted;
1555 files_struct *fsp = NULL;
1556 NTSTATUS status;
1557 DATA_BLOB blob;
1558
1559 if(parameter_count < 8) {
1560 reply_doserror(req, ERRDOS, ERRbadfunc);
1561 return;
1562 }
1563
1564 fsp = file_fsp(req, SVAL(params,0));
1565 if(!fsp) {
1566 reply_doserror(req, ERRDOS, ERRbadfid);
1567 return;
1568 }
1569
1570 security_info_wanted = IVAL(params,4);
1571
1572 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, info_wanted = 0x%x\n", fsp->fsp_name,
1573 (unsigned int)security_info_wanted ));
1574
1575 params = nttrans_realloc(ppparams, 4);
1576 if(params == NULL) {
1577 reply_doserror(req, ERRDOS, ERRnomem);
1578 return;
1579 }
1580
1581 /*
1582 * Get the permissions to return.
1583 */
1584
1585 if (!lp_nt_acl_support(SNUM(conn))) {
1586 status = get_null_nt_acl(talloc_tos(), &psd);
1587 } else {
1588 status = SMB_VFS_FGET_NT_ACL(
1589 fsp, security_info_wanted, &psd);
1590 }
1591
1592 if (!NT_STATUS_IS_OK(status)) {
1593 reply_nterror(req, status);
1594 return;
1595 }
1596
1597 sd_size = ndr_size_security_descriptor(psd, 0);
1598
1599 DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %lu.\n",(unsigned long)sd_size));
1600
1601 SIVAL(params,0,(uint32)sd_size);
1602
1603 if (max_data_count < sd_size) {
1604 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1605 params, 4, *ppdata, 0);
1606 return;
1607 }
1608
1609 /*
1610 * Allocate the data we will point this at.
1611 */
1612
1613 data = nttrans_realloc(ppdata, sd_size);
1614 if(data == NULL) {
1615 reply_doserror(req, ERRDOS, ERRnomem);
1616 return;
1617 }
1618
1619 status = marshall_sec_desc(talloc_tos(), psd,
1620 &blob.data, &blob.length);
1621
1622 if (!NT_STATUS_IS_OK(status)) {
1623 reply_nterror(req, status);
1624 return;
1625 }
1626
1627 SMB_ASSERT(sd_size == blob.length);
1628 memcpy(data, blob.data, sd_size);
1629
1630 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
1631
1632 return;
1633 }
1634
1635 /****************************************************************************
1636 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
1637 ****************************************************************************/
1638
1639 static void call_nt_transact_set_security_desc(connection_struct *conn,
1640 struct smb_request *req,
1641 uint16 **ppsetup,
1642 uint32 setup_count,
1643 char **ppparams,
1644 uint32 parameter_count,
1645 char **ppdata,
1646 uint32 data_count,
1647 uint32 max_data_count)
1648 {
1649 char *params= *ppparams;
1650 char *data = *ppdata;
1651 files_struct *fsp = NULL;
1652 uint32 security_info_sent = 0;
1653 NTSTATUS status;
1654
1655 if(parameter_count < 8) {
1656 reply_doserror(req, ERRDOS, ERRbadfunc);
1657 return;
1658 }
1659
1660 if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
1661 reply_doserror(req, ERRDOS, ERRbadfid);
1662 return;
1663 }
1664
1665 if(!lp_nt_acl_support(SNUM(conn))) {
1666 goto done;
1667 }
1668
1669 security_info_sent = IVAL(params,4);
1670
1671 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n", fsp->fsp_name,
1672 (unsigned int)security_info_sent ));
1673
1674 if (data_count == 0) {
1675 reply_doserror(req, ERRDOS, ERRnoaccess);
1676 return;
1677 }
1678
1679 status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
1680
1681 if (!NT_STATUS_IS_OK(status)) {
1682 reply_nterror(req, status);
1683 return;
1684 }
1685
1686 done:
1687 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1688 return;
1689 }
1690
1691 /****************************************************************************
1692 Reply to NT IOCTL
1693 ****************************************************************************/
1694
1695 static void call_nt_transact_ioctl(connection_struct *conn,
1696 struct smb_request *req,
1697 uint16 **ppsetup, uint32 setup_count,
1698 char **ppparams, uint32 parameter_count,
1699 char **ppdata, uint32 data_count,
1700 uint32 max_data_count)
1701 {
1702 uint32 function;
1703 uint16 fidnum;
1704 files_struct *fsp;
1705 uint8 isFSctl;
1706 uint8 compfilter;
1707 static bool logged_message;
1708 char *pdata = *ppdata;
1709
1710 if (setup_count != 8) {
1711 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
1712 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1713 return;
1714 }
1715
1716 function = IVAL(*ppsetup, 0);
1717 fidnum = SVAL(*ppsetup, 4);
1718 isFSctl = CVAL(*ppsetup, 6);
1719 compfilter = CVAL(*ppsetup, 7);
1720
1721 DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
1722 function, fidnum, isFSctl, compfilter));
1723
1724 fsp=file_fsp(req, fidnum);
1725 /* this check is done in each implemented function case for now
1726 because I don't want to break anything... --metze
1727 FSP_BELONGS_CONN(fsp,conn);*/
1728
1729 switch (function) {
1730 case FSCTL_SET_SPARSE:
1731 /* pretend this succeeded - tho strictly we should
1732 mark the file sparse (if the local fs supports it)
1733 so we can know if we need to pre-allocate or not */
1734
1735 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum));
1736 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1737 return;
1738
1739 case FSCTL_CREATE_OR_GET_OBJECT_ID:
1740 {
1741 unsigned char objid[16];
1742
1743 /* This should return the object-id on this file.
1744 * I think I'll make this be the inode+dev. JRA.
1745 */
1746
1747 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
1748
1749 if (!fsp_belongs_conn(conn, req, fsp)) {
1750 return;
1751 }
1752
1753 data_count = 64;
1754 pdata = nttrans_realloc(ppdata, data_count);
1755 if (pdata == NULL) {
1756 reply_nterror(req, NT_STATUS_NO_MEMORY);
1757 return;
1758 }
1759 push_file_id_16(pdata, &fsp->file_id);
1760 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
1761 push_file_id_16(pdata+32, &fsp->file_id);
1762 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
1763 pdata, data_count);
1764 return;
1765 }
1766
1767 case FSCTL_GET_REPARSE_POINT:
1768 /* pretend this fail - my winXP does it like this
1769 * --metze
1770 */
1771
1772 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1773 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1774 return;
1775
1776 case FSCTL_SET_REPARSE_POINT:
1777 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
1778 * --metze
1779 */
1780
1781 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1782 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1783 return;
1784
1785 case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
1786 {
1787 /*
1788 * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
1789 * and return their volume names. If max_data_count is 16, then it is just
1790 * asking for the number of volumes and length of the combined names.
1791 *
1792 * pdata is the data allocated by our caller, but that uses
1793 * total_data_count (which is 0 in our case) rather than max_data_count.
1794 * Allocate the correct amount and return the pointer to let
1795 * it be deallocated when we return.
1796 */
1797 SHADOW_COPY_DATA *shadow_data = NULL;
1798 TALLOC_CTX *shadow_mem_ctx = NULL;
1799 bool labels = False;
1800 uint32 labels_data_count = 0;
1801 uint32 i;
1802 char *cur_pdata;
1803
1804 if (!fsp_belongs_conn(conn, req, fsp)) {
1805 return;
1806 }
1807
1808 if (max_data_count < 16) {
1809 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
1810 max_data_count));
1811 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1812 return;
1813 }
1814
1815 if (max_data_count > 16) {
1816 labels = True;
1817 }
1818
1819 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
1820 if (shadow_mem_ctx == NULL) {
1821 DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
1822 reply_nterror(req, NT_STATUS_NO_MEMORY);
1823 return;
1824 }
1825
1826 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
1827 if (shadow_data == NULL) {
1828 DEBUG(0,("TALLOC_ZERO() failed!\n"));
1829 talloc_destroy(shadow_mem_ctx);
1830 reply_nterror(req, NT_STATUS_NO_MEMORY);
1831 return;
1832 }
1833
1834 shadow_data->mem_ctx = shadow_mem_ctx;
1835
1836 /*
1837 * Call the VFS routine to actually do the work.
1838 */
1839 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
1840 talloc_destroy(shadow_data->mem_ctx);
1841 if (errno == ENOSYS) {
1842 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
1843 conn->connectpath));
1844 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1845 return;
1846 } else {
1847 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
1848 conn->connectpath));
1849 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
1850 return;
1851 }
1852 }
1853
1854 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
1855
1856 if (!labels) {
1857 data_count = 16;
1858 } else {
1859 data_count = 12+labels_data_count+4;
1860 }
1861
1862 if (max_data_count<data_count) {
1863 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
1864 max_data_count,data_count));
1865 talloc_destroy(shadow_data->mem_ctx);
1866 reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
1867 return;
1868 }
1869
1870 pdata = nttrans_realloc(ppdata, data_count);
1871 if (pdata == NULL) {
1872 talloc_destroy(shadow_data->mem_ctx);
1873 reply_nterror(req, NT_STATUS_NO_MEMORY);
1874 return;
1875 }
1876
1877 cur_pdata = pdata;
1878
1879 /* num_volumes 4 bytes */
1880 SIVAL(pdata,0,shadow_data->num_volumes);
1881
1882 if (labels) {
1883 /* num_labels 4 bytes */
1884 SIVAL(pdata,4,shadow_data->num_volumes);
1885 }
1886
1887 /* needed_data_count 4 bytes */
1888 SIVAL(pdata,8,labels_data_count);
1889
1890 cur_pdata+=12;
1891
1892 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
1893 shadow_data->num_volumes,fsp->fsp_name));
1894 if (labels && shadow_data->labels) {
1895 for (i=0;i<shadow_data->num_volumes;i++) {
1896 srvstr_push(pdata, req->flags2,
1897 cur_pdata, shadow_data->labels[i],
1898 2*sizeof(SHADOW_COPY_LABEL),
1899 STR_UNICODE|STR_TERMINATE);
1900 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
1901 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
1902 }
1903 }
1904
1905 talloc_destroy(shadow_data->mem_ctx);
1906
1907 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
1908 pdata, data_count);
1909
1910 return;
1911 }
1912
1913 case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
1914 {
1915 /* pretend this succeeded -
1916 *
1917 * we have to send back a list with all files owned by this SID
1918 *
1919 * but I have to check that --metze
1920 */
1921 DOM_SID sid;
1922 uid_t uid;
1923 size_t sid_len = MIN(data_count-4,SID_MAX_SIZE);
1924
1925 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
1926
1927 if (!fsp_belongs_conn(conn, req, fsp)) {
1928 return;
1929 }
1930
1931 /* unknown 4 bytes: this is not the length of the sid :-( */
1932 /*unknown = IVAL(pdata,0);*/
1933
1934 sid_parse(pdata+4,sid_len,&sid);
1935 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
1936
1937 if (!sid_to_uid(&sid, &uid)) {
1938 DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
1939 sid_string_dbg(&sid),
1940 (unsigned long)sid_len));
1941 uid = (-1);
1942 }
1943
1944 /* we can take a look at the find source :-)
1945 *
1946 * find ./ -uid $uid -name '*' is what we need here
1947 *
1948 *
1949 * and send 4bytes len and then NULL terminated unicode strings
1950 * for each file
1951 *
1952 * but I don't know how to deal with the paged results
1953 * (maybe we can hang the result anywhere in the fsp struct)
1954 *
1955 * we don't send all files at once
1956 * and at the next we should *not* start from the beginning,
1957 * so we have to cache the result
1958 *
1959 * --metze
1960 */
1961
1962 /* this works for now... */
1963 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1964 return;
1965 }
1966 default:
1967 if (!logged_message) {
1968 logged_message = True; /* Only print this once... */
1969 DEBUG(0,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n",
1970 function));
1971 }
1972 }
1973
1974 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1975 }
1976
1977
1978 #ifdef HAVE_SYS_QUOTAS
1979 /****************************************************************************
1980 Reply to get user quota
1981 ****************************************************************************/
1982
1983 static void call_nt_transact_get_user_quota(connection_struct *conn,
1984 struct smb_request *req,
1985 uint16 **ppsetup,
1986 uint32 setup_count,
1987 char **ppparams,
1988 uint32 parameter_count,
1989 char **ppdata,
1990 uint32 data_count,
1991 uint32 max_data_count)
1992 {
1993 NTSTATUS nt_status = NT_STATUS_OK;
1994 char *params = *ppparams;
1995 char *pdata = *ppdata;
1996 char *entry;
1997 int data_len=0,param_len=0;
1998 int qt_len=0;
1999 int entry_len = 0;
2000 files_struct *fsp = NULL;
2001 uint16 level = 0;
2002 size_t sid_len;
2003 DOM_SID sid;
2004 bool start_enum = True;
2005 SMB_NTQUOTA_STRUCT qt;
2006 SMB_NTQUOTA_LIST *tmp_list;
2007 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2008
2009 ZERO_STRUCT(qt);
2010
2011 /* access check */
2012 if (conn->server_info->utok.uid != 0) {
2013 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2014 "[%s]\n", lp_servicename(SNUM(conn)),
2015 conn->server_info->unix_name));
2016 reply_doserror(req, ERRDOS, ERRnoaccess);
2017 return;
2018 }
2019
2020 /*
2021 * Ensure minimum number of parameters sent.
2022 */
2023
2024 if (parameter_count < 4) {
2025 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2026 reply_doserror(req, ERRDOS, ERRinvalidparam);
2027 return;
2028 }
2029
2030 /* maybe we can check the quota_fnum */
2031 fsp = file_fsp(req, SVAL(params,0));
2032 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2033 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2034 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2035 return;
2036 }
2037
2038 /* the NULL pointer checking for fsp->fake_file_handle->pd
2039 * is done by CHECK_NTQUOTA_HANDLE_OK()
2040 */
2041 qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2042
2043 level = SVAL(params,2);
2044
2045 /* unknown 12 bytes leading in params */
2046
2047 switch (level) {
2048 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2049 /* seems that we should continue with the enum here --metze */
2050
2051 if (qt_handle->quota_list!=NULL &&
2052 qt_handle->tmp_list==NULL) {
2053
2054 /* free the list */
2055 free_ntquota_list(&(qt_handle->quota_list));
2056
2057 /* Realloc the size of parameters and data we will return */
2058 param_len = 4;
2059 params = nttrans_realloc(ppparams, param_len);
2060 if(params == NULL) {
2061 reply_doserror(req, ERRDOS, ERRnomem);
2062 return;
2063 }
2064
2065 data_len = 0;
2066 SIVAL(params,0,data_len);
2067
2068 break;
2069 }
2070
2071 start_enum = False;
2072
2073 case TRANSACT_GET_USER_QUOTA_LIST_START:
2074
2075 if (qt_handle->quota_list==NULL &&
2076 qt_handle->tmp_list==NULL) {
2077 start_enum = True;
2078 }
2079
2080 if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2081 reply_doserror(req, ERRSRV, ERRerror);
2082 return;
2083 }
2084
2085 /* Realloc the size of parameters and data we will return */
2086 param_len = 4;
2087 params = nttrans_realloc(ppparams, param_len);
2088 if(params == NULL) {
2089 reply_doserror(req, ERRDOS, ERRnomem);
2090 return;
2091 }
2092
2093 /* we should not trust the value in max_data_count*/
2094 max_data_count = MIN(max_data_count,2048);
2095
2096 pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2097 if(pdata == NULL) {
2098 reply_doserror(req, ERRDOS, ERRnomem);
2099 return;
2100 }
2101
2102 entry = pdata;
2103
2104 /* set params Size of returned Quota Data 4 bytes*/
2105 /* but set it later when we know it */
2106
2107 /* for each entry push the data */
2108
2109 if (start_enum) {
2110 qt_handle->tmp_list = qt_handle->quota_list;
2111 }
2112
2113 tmp_list = qt_handle->tmp_list;
2114
2115 for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2116 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2117
2118 sid_len = ndr_size_dom_sid(
2119 &tmp_list->quotas->sid, 0);
2120 entry_len = 40 + sid_len;
2121
2122 /* nextoffset entry 4 bytes */
2123 SIVAL(entry,0,entry_len);
2124
2125 /* then the len of the SID 4 bytes */
2126 SIVAL(entry,4,sid_len);
2127
2128 /* unknown data 8 bytes uint64_t */
2129 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2130
2131 /* the used disk space 8 bytes uint64_t */
2132 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2133
2134 /* the soft quotas 8 bytes uint64_t */
2135 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2136
2137 /* the hard quotas 8 bytes uint64_t */
2138 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2139
2140 /* and now the SID */
2141 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2142 }
2143
2144 qt_handle->tmp_list = tmp_list;
2145
2146 /* overwrite the offset of the last entry */
2147 SIVAL(entry-entry_len,0,0);
2148
2149 data_len = 4+qt_len;
2150 /* overwrite the params quota_data_len */
2151 SIVAL(params,0,data_len);
2152
2153 break;
2154
2155 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2156
2157 /* unknown 4 bytes IVAL(pdata,0) */
2158
2159 if (data_count < 8) {
2160 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2161 reply_doserror(req, ERRDOS, ERRunknownlevel);
2162 return;
2163 }
2164
2165 sid_len = IVAL(pdata,4);
2166 /* Ensure this is less than 1mb. */
2167 if (sid_len > (1024*1024)) {
2168 reply_doserror(req, ERRDOS, ERRnomem);
2169 return;
2170 }
2171
2172 if (data_count < 8+sid_len) {
2173 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2174 reply_doserror(req, ERRDOS, ERRunknownlevel);
2175 return;
2176 }
2177
2178 data_len = 4+40+sid_len;
2179
2180 if (max_data_count < data_len) {
2181 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2182 max_data_count, data_len));
2183 param_len = 4;
2184 SIVAL(params,0,data_len);
2185 data_len = 0;
2186 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2187 break;
2188 }
2189
2190 sid_parse(pdata+8,sid_len,&sid);
2191
2192 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2193 ZERO_STRUCT(qt);
2194 /*
2195 * we have to return zero's in all fields
2196 * instead of returning an error here
2197 * --metze
2198 */
2199 }
2200
2201 /* Realloc the size of parameters and data we will return */
2202 param_len = 4;
2203 params = nttrans_realloc(ppparams, param_len);
2204 if(params == NULL) {
2205 reply_doserror(req, ERRDOS, ERRnomem);
2206 return;
2207 }
2208
2209 pdata = nttrans_realloc(ppdata, data_len);
2210 if(pdata == NULL) {
2211 reply_doserror(req, ERRDOS, ERRnomem);
2212 return;
2213 }
2214
2215 entry = pdata;
2216
2217 /* set params Size of returned Quota Data 4 bytes*/
2218 SIVAL(params,0,data_len);
2219
2220 /* nextoffset entry 4 bytes */
2221 SIVAL(entry,0,0);
2222
2223 /* then the len of the SID 4 bytes */
2224 SIVAL(entry,4,sid_len);
2225
2226 /* unknown data 8 bytes uint64_t */
2227 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2228
2229 /* the used disk space 8 bytes uint64_t */
2230 SBIG_UINT(entry,16,qt.usedspace);
2231
2232 /* the soft quotas 8 bytes uint64_t */
2233 SBIG_UINT(entry,24,qt.softlim);
2234
2235 /* the hard quotas 8 bytes uint64_t */
2236 SBIG_UINT(entry,32,qt.hardlim);
2237
2238 /* and now the SID */
2239 sid_linearize(entry+40, sid_len, &sid);
2240
2241 break;
2242
2243 default:
2244 DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2245 reply_doserror(req, ERRSRV, ERRerror);
2246 return;
2247 break;
2248 }
2249
2250 send_nt_replies(conn, req, nt_status, params, param_len,
2251 pdata, data_len);
2252 }
2253
2254 /****************************************************************************
2255 Reply to set user quota
2256 ****************************************************************************/
2257
2258 static void call_nt_transact_set_user_quota(connection_struct *conn,
2259 struct smb_request *req,
2260 uint16 **ppsetup,
2261 uint32 setup_count,
2262 char **ppparams,
2263 uint32 parameter_count,
2264 char **ppdata,
2265 uint32 data_count,
2266 uint32 max_data_count)
2267 {
2268 char *params = *ppparams;
2269 char *pdata = *ppdata;
2270 int data_len=0,param_len=0;
2271 SMB_NTQUOTA_STRUCT qt;
2272 size_t sid_len;
2273 DOM_SID sid;
2274 files_struct *fsp = NULL;
2275
2276 ZERO_STRUCT(qt);
2277
2278 /* access check */
2279 if (conn->server_info->utok.uid != 0) {
2280 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2281 "[%s]\n", lp_servicename(SNUM(conn)),
2282 conn->server_info->unix_name));
2283 reply_doserror(req, ERRDOS, ERRnoaccess);
2284 return;
2285 }
2286
2287 /*
2288 * Ensure minimum number of parameters sent.
2289 */
2290
2291 if (parameter_count < 2) {
2292 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2293 reply_doserror(req, ERRDOS, ERRinvalidparam);
2294 return;
2295 }
2296
2297 /* maybe we can check the quota_fnum */
2298 fsp = file_fsp(req, SVAL(params,0));
2299 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2300 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2301 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2302 return;
2303 }
2304
2305 if (data_count < 40) {
2306 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2307 reply_doserror(req, ERRDOS, ERRunknownlevel);
2308 return;
2309 }
2310
2311 /* offset to next quota record.
2312 * 4 bytes IVAL(pdata,0)
2313 * unused here...
2314 */
2315
2316 /* sid len */
2317 sid_len = IVAL(pdata,4);
2318
2319 if (data_count < 40+sid_len) {
2320 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2321 reply_doserror(req, ERRDOS, ERRunknownlevel);
2322 return;
2323 }
2324
2325 /* unknown 8 bytes in pdata
2326 * maybe its the change time in NTTIME
2327 */
2328
2329 /* the used space 8 bytes (uint64_t)*/
2330 qt.usedspace = (uint64_t)IVAL(pdata,16);
2331 #ifdef LARGE_SMB_OFF_T
2332 qt.usedspace |= (((uint64_t)IVAL(pdata,20)) << 32);
2333 #else /* LARGE_SMB_OFF_T */
2334 if ((IVAL(pdata,20) != 0)&&
2335 ((qt.usedspace != 0xFFFFFFFF)||
2336 (IVAL(pdata,20)!=0xFFFFFFFF))) {
2337 /* more than 32 bits? */
2338 reply_doserror(req, ERRDOS, ERRunknownlevel);
2339 return;
2340 }
2341 #endif /* LARGE_SMB_OFF_T */
2342
2343 /* the soft quotas 8 bytes (uint64_t)*/
2344 qt.softlim = (uint64_t)IVAL(pdata,24);
2345 #ifdef LARGE_SMB_OFF_T
2346 qt.softlim |= (((uint64_t)IVAL(pdata,28)) << 32);
2347 #else /* LARGE_SMB_OFF_T */
2348 if ((IVAL(pdata,28) != 0)&&
2349 ((qt.softlim != 0xFFFFFFFF)||
2350 (IVAL(pdata,28)!=0xFFFFFFFF))) {
2351 /* more than 32 bits? */
2352 reply_doserror(req, ERRDOS, ERRunknownlevel);
2353 return;
2354 }
2355 #endif /* LARGE_SMB_OFF_T */
2356
2357 /* the hard quotas 8 bytes (uint64_t)*/
2358 qt.hardlim = (uint64_t)IVAL(pdata,32);
2359 #ifdef LARGE_SMB_OFF_T
2360 qt.hardlim |= (((uint64_t)IVAL(pdata,36)) << 32);
2361 #else /* LARGE_SMB_OFF_T */
2362 if ((IVAL(pdata,36) != 0)&&
2363 ((qt.hardlim != 0xFFFFFFFF)||
2364 (IVAL(pdata,36)!=0xFFFFFFFF))) {
2365 /* more than 32 bits? */
2366 reply_doserror(req, ERRDOS, ERRunknownlevel);
2367 return;
2368 }
2369 #endif /* LARGE_SMB_OFF_T */
2370
2371 sid_parse(pdata+40,sid_len,&sid);
2372 DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2373
2374 /* 44 unknown bytes left... */
2375
2376 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2377 reply_doserror(req, ERRSRV, ERRerror);
2378 return;
2379 }
2380
2381 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2382 pdata, data_len);
2383 }
2384 #endif /* HAVE_SYS_QUOTAS */
2385
2386 static void handle_nttrans(connection_struct *conn,
2387 struct trans_state *state,
2388 struct smb_request *req)
2389 {
2390 if (Protocol >= PROTOCOL_NT1) {
2391 req->flags2 |= 0x40; /* IS_LONG_NAME */
2392 SSVAL(req->inbuf,smb_flg2,req->flags2);
2393 }
2394
2395 /* Now we must call the relevant NT_TRANS function */
2396 switch(state->call) {
2397 case NT_TRANSACT_CREATE:
2398 {
2399 START_PROFILE(NT_transact_create);
2400 call_nt_transact_create(
2401 conn, req,
2402 &state->setup, state->setup_count,
2403 &state->param, state->total_param,
2404 &state->data, state->total_data,
2405 state->max_data_return);
2406 END_PROFILE(NT_transact_create);
2407 break;
2408 }
2409
2410 case NT_TRANSACT_IOCTL:
2411 {
2412 START_PROFILE(NT_transact_ioctl);
2413 call_nt_transact_ioctl(
2414 conn, req,
2415 &state->setup, state->setup_count,
2416 &state->param, state->total_param,
2417 &state->data, state->total_data,
2418 state->max_data_return);
2419 END_PROFILE(NT_transact_ioctl);
2420 break;
2421 }
2422
2423 case NT_TRANSACT_SET_SECURITY_DESC:
2424 {
2425 START_PROFILE(NT_transact_set_security_desc);
2426 call_nt_transact_set_security_desc(
2427 conn, req,
2428 &state->setup, state->setup_count,
2429 &state->param, state->total_param,
2430 &state->data, state->total_data,
2431 state->max_data_return);
2432 END_PROFILE(NT_transact_set_security_desc);
2433 break;
2434 }
2435
2436 case NT_TRANSACT_NOTIFY_CHANGE:
2437 {
2438 START_PROFILE(NT_transact_notify_change);
2439 call_nt_transact_notify_change(
2440 conn, req,
2441 &state->setup, state->setup_count,
2442 &state->param, state->total_param,
2443 &state->data, state->total_data,
2444 state->max_data_return,
2445 state->max_param_return);
2446 END_PROFILE(NT_transact_notify_change);
2447 break;
2448 }
2449
2450 case NT_TRANSACT_RENAME:
2451 {
2452 START_PROFILE(NT_transact_rename);
2453 call_nt_transact_rename(
2454 conn, req,
2455 &state->setup, state->setup_count,
2456 &state->param, state->total_param,
2457 &state->data, state->total_data,
2458 state->max_data_return);
2459 END_PROFILE(NT_transact_rename);
2460 break;
2461 }
2462
2463 case NT_TRANSACT_QUERY_SECURITY_DESC:
2464 {
2465 START_PROFILE(NT_transact_query_security_desc);
2466 call_nt_transact_query_security_desc(
2467 conn, req,
2468 &state->setup, state->setup_count,
2469 &state->param, state->total_param,
2470 &state->data, state->total_data,
2471 state->max_data_return);
2472 END_PROFILE(NT_transact_query_security_desc);
2473 break;
2474 }
2475
2476 #ifdef HAVE_SYS_QUOTAS
2477 case NT_TRANSACT_GET_USER_QUOTA:
2478 {
2479 START_PROFILE(NT_transact_get_user_quota);
2480 call_nt_transact_get_user_quota(
2481 conn, req,
2482 &state->setup, state->setup_count,
2483 &state->param, state->total_param,
2484 &state->data, state->total_data,
2485 state->max_data_return);
2486 END_PROFILE(NT_transact_get_user_quota);
2487 break;
2488 }
2489
2490 case NT_TRANSACT_SET_USER_QUOTA:
2491 {
2492 START_PROFILE(NT_transact_set_user_quota);
2493 call_nt_transact_set_user_quota(
2494 conn, req,
2495 &state->setup, state->setup_count,
2496 &state->param, state->total_param,
2497 &state->data, state->total_data,
2498 state->max_data_return);
2499 END_PROFILE(NT_transact_set_user_quota);
2500 break;
2501 }
2502 #endif /* HAVE_SYS_QUOTAS */
2503
2504 default:
2505 /* Error in request */
2506 DEBUG(0,("handle_nttrans: Unknown request %d in "
2507 "nttrans call\n", state->call));
2508 reply_doserror(req, ERRSRV, ERRerror);
2509 return;
2510 }
2511 return;
2512 }
2513
2514 /****************************************************************************
2515 Reply to a SMBNTtrans.
2516 ****************************************************************************/
2517
2518 void reply_nttrans(struct smb_request *req)
2519 {
2520 connection_struct *conn = req->conn;
2521 uint32_t pscnt;
2522 uint32_t psoff;
2523 uint32_t dscnt;
2524 uint32_t dsoff;
2525 uint16 function_code;
2526 NTSTATUS result;
2527 struct trans_state *state;
2528 uint32_t size;
2529 uint32_t av_size;
2530
2531 START_PROFILE(SMBnttrans);
2532
2533 if (req->wct < 19) {
2534 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2535 END_PROFILE(SMBnttrans);
2536 return;
2537 }
2538
2539 size = smb_len(req->inbuf) + 4;
2540 av_size = smb_len(req->inbuf);
2541 pscnt = IVAL(req->inbuf,smb_nt_ParameterCount);
2542 psoff = IVAL(req->inbuf,smb_nt_ParameterOffset);
2543 dscnt = IVAL(req->inbuf,smb_nt_DataCount);
2544 dsoff = IVAL(req->inbuf,smb_nt_DataOffset);
2545 function_code = SVAL(req->inbuf, smb_nt_Function);
2546
2547 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2548 reply_doserror(req, ERRSRV, ERRaccess);
2549 END_PROFILE(SMBnttrans);
2550 return;
2551 }
2552
2553 result = allow_new_trans(conn->pending_trans, req->mid);
2554 if (!NT_STATUS_IS_OK(result)) {
2555 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2556 reply_nterror(req, result);
2557 END_PROFILE(SMBnttrans);
2558 return;
2559 }
2560
2561 if ((state = TALLOC_P(conn, struct trans_state)) == NULL) {
2562 reply_doserror(req, ERRSRV, ERRaccess);
2563 END_PROFILE(SMBnttrans);
2564 return;
2565 }
2566
2567 state->cmd = SMBnttrans;
2568
2569 state->mid = req->mid;
2570 state->vuid = req->vuid;
2571 state->total_data = IVAL(req->inbuf, smb_nt_TotalDataCount);
2572 state->data = NULL;
2573 state->total_param = IVAL(req->inbuf, smb_nt_TotalParameterCount);
2574 state->param = NULL;
2575 state->max_data_return = IVAL(req->inbuf,smb_nt_MaxDataCount);
2576 state->max_param_return = IVAL(req->inbuf,smb_nt_MaxParameterCount);
2577
2578 /* setup count is in *words* */
2579 state->setup_count = 2*CVAL(req->inbuf,smb_nt_SetupCount);
2580 state->setup = NULL;
2581 state->call = function_code;
2582
2583 DEBUG(10, ("num_setup=%u, "
2584 "param_total=%u, this_param=%u, max_param=%u, "
2585 "data_total=%u, this_data=%u, max_data=%u, "
2586 "param_offset=%u, data_offset=%u\n",
2587 (unsigned)state->setup_count,
2588 (unsigned)state->total_param, (unsigned)pscnt,
2589 (unsigned)state->max_param_return,
2590 (unsigned)state->total_data, (unsigned)dscnt,
2591 (unsigned)state->max_data_return,
2592 (unsigned)psoff, (unsigned)dsoff));
2593
2594 /*
2595 * All nttrans messages we handle have smb_wct == 19 +
2596 * state->setup_count. Ensure this is so as a sanity check.
2597 */
2598
2599 if(req->wct != 19 + (state->setup_count/2)) {
2600 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2601 req->wct, 19 + (state->setup_count/2)));
2602 goto bad_param;
2603 }
2604
2605 /* Don't allow more than 128mb for each value. */
2606 if ((state->total_data > (1024*1024*128)) ||
2607 (state->total_param > (1024*1024*128))) {
2608 reply_doserror(req, ERRDOS, ERRnomem);
2609 END_PROFILE(SMBnttrans);
2610 return;
2611 }
2612
2613 if ((dscnt > state->total_data) || (pscnt > state->total_param))
2614 goto bad_param;
2615
2616 if (state->total_data) {
2617 /* Can't use talloc here, the core routines do realloc on the
2618 * params and data. */
2619 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2620 DEBUG(0,("reply_nttrans: data malloc fail for %u "
2621 "bytes !\n", (unsigned int)state->total_data));
2622 TALLOC_FREE(state);
2623 reply_doserror(req, ERRDOS, ERRnomem);
2624 END_PROFILE(SMBnttrans);
2625 return;
2626 }
2627
2628 if (dscnt > state->total_data ||
2629 dsoff+dscnt < dsoff) {
2630 goto bad_param;
2631 }
2632
2633 if (dsoff > av_size ||
2634 dscnt > av_size ||
2635 dsoff+dscnt > av_size) {
2636 goto bad_param;
2637 }
2638
2639 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2640 }
2641
2642 if (state->total_param) {
2643 /* Can't use talloc here, the core routines do realloc on the
2644 * params and data. */
2645 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2646 DEBUG(0,("reply_nttrans: param malloc fail for %u "
2647 "bytes !\n", (unsigned int)state->total_param));
2648 SAFE_FREE(state->data);
2649 TALLOC_FREE(state);
2650 reply_doserror(req, ERRDOS, ERRnomem);
2651 END_PROFILE(SMBnttrans);
2652 return;
2653 }
2654
2655 if (pscnt > state->total_param ||
2656 psoff+pscnt < psoff) {
2657 goto bad_param;
2658 }
2659
2660 if (psoff > av_size ||
2661 pscnt > av_size ||
2662 psoff+pscnt > av_size) {
2663 goto bad_param;
2664 }
2665
2666 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2667 }
2668
2669 state->received_data = dscnt;
2670 state->received_param = pscnt;
2671
2672 if(state->setup_count > 0) {
2673 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2674 state->setup_count));
2675 state->setup = (uint16 *)TALLOC(state, state->setup_count);
2676 if (state->setup == NULL) {
2677 DEBUG(0,("reply_nttrans : Out of memory\n"));
2678 SAFE_FREE(state->data);
2679 SAFE_FREE(state->param);
2680 TALLOC_FREE(state);
2681 reply_doserror(req, ERRDOS, ERRnomem);
2682 END_PROFILE(SMBnttrans);
2683 return;
2684 }
2685
2686 if ((smb_nt_SetupStart + state->setup_count < smb_nt_SetupStart) ||
2687 (smb_nt_SetupStart + state->setup_count < state->setup_count)) {
2688 goto bad_param;
2689 }
2690 if (smb_nt_SetupStart + state->setup_count > size) {
2691 goto bad_param;
2692 }
2693
2694 memcpy( state->setup, &req->inbuf[smb_nt_SetupStart],
2695 state->setup_count);
2696 dump_data(10, (uint8 *)state->setup, state->setup_count);
2697 }
2698
2699 if ((state->received_data == state->total_data) &&
2700 (state->received_param == state->total_param)) {
2701 handle_nttrans(conn, state, req);
2702 SAFE_FREE(state->param);
2703 SAFE_FREE(state->data);
2704 TALLOC_FREE(state);
2705 END_PROFILE(SMBnttrans);
2706 return;
2707 }
2708
2709 DLIST_ADD(conn->pending_trans, state);
2710
2711 /* We need to send an interim response then receive the rest
2712 of the parameter/data bytes */
2713 reply_outbuf(req, 0, 0);
2714 show_msg((char *)req->outbuf);
2715 END_PROFILE(SMBnttrans);
2716 return;
2717
2718 bad_param:
2719
2720 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2721 SAFE_FREE(state->data);
2722 SAFE_FREE(state->param);
2723 TALLOC_FREE(state);
2724 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2725 END_PROFILE(SMBnttrans);
2726 return;
2727 }
2728
2729 /****************************************************************************
2730 Reply to a SMBnttranss
2731 ****************************************************************************/
2732
2733 void reply_nttranss(struct smb_request *req)
2734 {
2735 connection_struct *conn = req->conn;
2736 uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
2737 struct trans_state *state;
2738 uint32_t av_size;
2739 uint32_t size;
2740
2741 START_PROFILE(SMBnttranss);
2742
2743 show_msg((char *)req->inbuf);
2744
2745 if (req->wct < 18) {
2746 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2747 END_PROFILE(SMBnttranss);
2748 return;
2749 }
2750
2751 for (state = conn->pending_trans; state != NULL;
2752 state = state->next) {
2753 if (state->mid == req->mid) {
2754 break;
2755 }
2756 }
2757
2758 if ((state == NULL) || (state->cmd != SMBnttrans)) {
2759 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2760 END_PROFILE(SMBnttranss);
2761 return;
2762 }
2763
2764 /* Revise state->total_param and state->total_data in case they have
2765 changed downwards */
2766 if (IVAL(req->inbuf, smb_nts_TotalParameterCount)
2767 < state->total_param) {
2768 state->total_param = IVAL(req->inbuf,
2769 smb_nts_TotalParameterCount);
2770 }
2771 if (IVAL(req->inbuf, smb_nts_TotalDataCount) < state->total_data) {
2772 state->total_data = IVAL(req->inbuf, smb_nts_TotalDataCount);
2773 }
2774
2775 size = smb_len(req->inbuf) + 4;
2776 av_size = smb_len(req->inbuf);
2777
2778 pcnt = IVAL(req->inbuf,smb_nts_ParameterCount);
2779 poff = IVAL(req->inbuf, smb_nts_ParameterOffset);
2780 pdisp = IVAL(req->inbuf, smb_nts_ParameterDisplacement);
2781
2782 dcnt = IVAL(req->inbuf, smb_nts_DataCount);
2783 ddisp = IVAL(req->inbuf, smb_nts_DataDisplacement);
2784 doff = IVAL(req->inbuf, smb_nts_DataOffset);
2785
2786 state->received_param += pcnt;
2787 state->received_data += dcnt;
2788
2789 if ((state->received_data > state->total_data) ||
2790 (state->received_param > state->total_param))
2791 goto bad_param;
2792
2793 if (pcnt) {
2794 if (pdisp > state->total_param ||
2795 pcnt > state->total_param ||
2796 pdisp+pcnt > state->total_param ||
2797 pdisp+pcnt < pdisp) {
2798 goto bad_param;
2799 }
2800
2801 if (poff > av_size ||
2802 pcnt > av_size ||
2803 poff+pcnt > av_size ||
2804 poff+pcnt < poff) {
2805 goto bad_param;
2806 }
2807
2808 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,
2809 pcnt);
2810 }
2811
2812 if (dcnt) {
2813 if (ddisp > state->total_data ||
2814 dcnt > state->total_data ||
2815 ddisp+dcnt > state->total_data ||
2816 ddisp+dcnt < ddisp) {
2817 goto bad_param;
2818 }
2819
2820 if (ddisp > av_size ||
2821 dcnt > av_size ||
2822 ddisp+dcnt > av_size ||
2823 ddisp+dcnt < ddisp) {
2824 goto bad_param;
2825 }
2826
2827 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,
2828 dcnt);
2829 }
2830
2831 if ((state->received_param < state->total_param) ||
2832 (state->received_data < state->total_data)) {
2833 END_PROFILE(SMBnttranss);
2834 return;
2835 }
2836
2837 /*
2838 * construct_reply_common will copy smb_com from inbuf to
2839 * outbuf. SMBnttranss is wrong here.
2840 */
2841 SCVAL(req->inbuf,smb_com,SMBnttrans);
2842
2843 handle_nttrans(conn, state, req);
2844
2845 DLIST_REMOVE(conn->pending_trans, state);
2846 SAFE_FREE(state->data);
2847 SAFE_FREE(state->param);
2848 TALLOC_FREE(state);
2849 END_PROFILE(SMBnttranss);
2850 return;
2851
2852 bad_param:
2853
2854 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
2855 DLIST_REMOVE(conn->pending_trans, state);
2856 SAFE_FREE(state->data);
2857 SAFE_FREE(state->param);
2858 TALLOC_FREE(state);
2859 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2860 END_PROFILE(SMBnttranss);
2861 return;
2862 }
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