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s3: Fix uninstallmo
[Samba.git] / source3 / smbd / nttrans.c
blob0c0bebb83cd87ec2bc3817cf688f4c484ebc9d18
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 #include "smbd/globals.h"
23
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 * We might have had SMBnttranss in req->inbuf, fix that.
124 */
125 SCVAL(req->outbuf, smb_com, SMBnttrans);
126
127 /*
128 * Set total params and data to be sent.
129 */
130
131 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
132 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
133
134 /*
135 * Calculate how many parameters and data we can fit into
136 * this packet. Parameters get precedence.
137 */
138
139 params_sent_thistime = MIN(params_to_send,useable_space);
140 data_sent_thistime = useable_space - params_sent_thistime;
141 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
142
143 SIVAL(req->outbuf, smb_ntr_ParameterCount,
144 params_sent_thistime);
145
146 if(params_sent_thistime == 0) {
147 SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
148 SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
149 } else {
150 /*
151 * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
152 * parameter bytes, however the first 4 bytes of outbuf are
153 * the Netbios over TCP header. Thus use smb_base() to subtract
154 * them from the calculation.
155 */
156
157 SIVAL(req->outbuf,smb_ntr_ParameterOffset,
158 ((smb_buf(req->outbuf)+alignment_offset)
159 - smb_base(req->outbuf)));
160 /*
161 * Absolute displacement of param bytes sent in this packet.
162 */
163
164 SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
165 pp - params);
166 }
167
168 /*
169 * Deal with the data portion.
170 */
171
172 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
173
174 if(data_sent_thistime == 0) {
175 SIVAL(req->outbuf,smb_ntr_DataOffset,0);
176 SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
177 } else {
178 /*
179 * The offset of the data bytes is the offset of the
180 * parameter bytes plus the number of parameters being sent this time.
181 */
182
183 SIVAL(req->outbuf, smb_ntr_DataOffset,
184 ((smb_buf(req->outbuf)+alignment_offset) -
185 smb_base(req->outbuf))
186 + params_sent_thistime + data_alignment_offset);
187 SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
188 }
189
190 /*
191 * Copy the param bytes into the packet.
192 */
193
194 if(params_sent_thistime) {
195 if (alignment_offset != 0) {
196 memset(smb_buf(req->outbuf), 0,
197 alignment_offset);
198 }
199 memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
200 params_sent_thistime);
201 }
202
203 /*
204 * Copy in the data bytes
205 */
206
207 if(data_sent_thistime) {
208 if (data_alignment_offset != 0) {
209 memset((smb_buf(req->outbuf)+alignment_offset+
210 params_sent_thistime), 0,
211 data_alignment_offset);
212 }
213 memcpy(smb_buf(req->outbuf)+alignment_offset
214 +params_sent_thistime+data_alignment_offset,
215 pd,data_sent_thistime);
216 }
217
218 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
219 params_sent_thistime, data_sent_thistime, useable_space));
220 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
221 params_to_send, data_to_send, paramsize, datasize));
222
223 if (NT_STATUS_V(nt_error)) {
224 error_packet_set((char *)req->outbuf,
225 0, 0, nt_error,
226 __LINE__,__FILE__);
227 }
228
229 /* Send the packet */
230 show_msg((char *)req->outbuf);
231 if (!srv_send_smb(smbd_server_fd(),
232 (char *)req->outbuf,
233 IS_CONN_ENCRYPTED(conn),
234 &req->pcd)) {
235 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
236 }
237
238 TALLOC_FREE(req->outbuf);
239
240 pp += params_sent_thistime;
241 pd += data_sent_thistime;
242
243 params_to_send -= params_sent_thistime;
244 data_to_send -= data_sent_thistime;
245
246 /*
247 * Sanity check
248 */
249
250 if(params_to_send < 0 || data_to_send < 0) {
251 DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
252 params_to_send, data_to_send));
253 exit_server_cleanly("send_nt_replies: internal error");
254 }
255 }
256 }
257
258 /****************************************************************************
259 Is it an NTFS stream name ?
260 An NTFS file name is <path>.<extention>:<stream name>:<stream type>
261 $DATA can be used as both a stream name and a stream type. A missing stream
262 name or type implies $DATA.
263
264 Both Windows stream names and POSIX files can contain the ':' character.
265 This function first checks for the existence of a colon in the last component
266 of the given name. If the name contains a colon we differentiate between a
267 stream and POSIX file by checking if the latter exists through a POSIX stat.
268
269 Function assumes we've already chdir() to the "root" directory of fname.
270 ****************************************************************************/
271
272 bool is_ntfs_stream_name(const char *fname)
273 {
274 const char *lastcomp;
275 SMB_STRUCT_STAT sbuf;
276
277 /* If all pathnames are treated as POSIX we ignore streams. */
278 if (lp_posix_pathnames()) {
279 return false;
280 }
281
282 /* Find the last component of the name. */
283 if ((lastcomp = strrchr_m(fname, '/')) != NULL)
284 ++lastcomp;
285 else
286 lastcomp = fname;
287
288 /* If there is no colon in the last component, it's not a stream. */
289 if (strchr_m(lastcomp, ':') == NULL)
290 return false;
291
292 /*
293 * If file already exists on disk, it's not a stream. The stat must
294 * bypass the vfs layer so streams modules don't intefere.
295 */
296 if (sys_stat(fname, &sbuf) == 0) {
297 DEBUG(5, ("is_ntfs_stream_name: file %s contains a ':' but is "
298 "not a stream\n", fname));
299 return false;
300 }
301
302 return true;
303 }
304
305 /****************************************************************************
306 Reply to an NT create and X call on a pipe
307 ****************************************************************************/
308
309 static void nt_open_pipe(char *fname, connection_struct *conn,
310 struct smb_request *req, int *ppnum)
311 {
312 files_struct *fsp;
313 NTSTATUS status;
314
315 DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
316
317 /* Strip \\ off the name. */
318 fname++;
319
320 status = open_np_file(req, fname, &fsp);
321 if (!NT_STATUS_IS_OK(status)) {
322 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
323 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
324 ERRDOS, ERRbadpipe);
325 return;
326 }
327 reply_nterror(req, status);
328 return;
329 }
330
331 *ppnum = fsp->fnum;
332 return;
333 }
334
335 /****************************************************************************
336 Reply to an NT create and X call for pipes.
337 ****************************************************************************/
338
339 static void do_ntcreate_pipe_open(connection_struct *conn,
340 struct smb_request *req)
341 {
342 char *fname = NULL;
343 int pnum = -1;
344 char *p = NULL;
345 uint32 flags = IVAL(req->vwv+3, 1);
346 TALLOC_CTX *ctx = talloc_tos();
347
348 srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
349
350 if (!fname) {
351 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
352 ERRDOS, ERRbadpipe);
353 return;
354 }
355 nt_open_pipe(fname, conn, req, &pnum);
356
357 if (req->outbuf) {
358 /* error reply */
359 return;
360 }
361
362 /*
363 * Deal with pipe return.
364 */
365
366 if (flags & EXTENDED_RESPONSE_REQUIRED) {
367 /* This is very strange. We
368 * return 50 words, but only set
369 * the wcnt to 42 ? It's definately
370 * what happens on the wire....
371 */
372 reply_outbuf(req, 50, 0);
373 SCVAL(req->outbuf,smb_wct,42);
374 } else {
375 reply_outbuf(req, 34, 0);
376 }
377
378 p = (char *)req->outbuf + smb_vwv2;
379 p++;
380 SSVAL(p,0,pnum);
381 p += 2;
382 SIVAL(p,0,FILE_WAS_OPENED);
383 p += 4;
384 p += 32;
385 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
386 p += 20;
387 /* File type. */
388 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
389 /* Device state. */
390 SSVAL(p,2, 0x5FF); /* ? */
391 p += 4;
392
393 if (flags & EXTENDED_RESPONSE_REQUIRED) {
394 p += 25;
395 SIVAL(p,0,FILE_GENERIC_ALL);
396 /*
397 * For pipes W2K3 seems to return
398 * 0x12019B next.
399 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
400 */
401 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
402 }
403
404 DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
405
406 chain_reply(req);
407 }
408
409 /****************************************************************************
410 Reply to an NT create and X call.
411 ****************************************************************************/
412
413 void reply_ntcreate_and_X(struct smb_request *req)
414 {
415 connection_struct *conn = req->conn;
416 char *fname = NULL;
417 uint32 flags;
418 uint32 access_mask;
419 uint32 file_attributes;
420 uint32 share_access;
421 uint32 create_disposition;
422 uint32 create_options;
423 uint16 root_dir_fid;
424 uint64_t allocation_size;
425 /* Breakout the oplock request bits so we can set the
426 reply bits separately. */
427 uint32 fattr=0;
428 SMB_OFF_T file_len = 0;
429 SMB_STRUCT_STAT sbuf;
430 int info = 0;
431 files_struct *fsp = NULL;
432 char *p = NULL;
433 struct timespec c_timespec;
434 struct timespec a_timespec;
435 struct timespec m_timespec;
436 NTSTATUS status;
437 int oplock_request;
438 uint8_t oplock_granted = NO_OPLOCK_RETURN;
439 TALLOC_CTX *ctx = talloc_tos();
440
441 START_PROFILE(SMBntcreateX);
442
443 SET_STAT_INVALID(sbuf);
444
445 if (req->wct < 24) {
446 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
447 return;
448 }
449
450 flags = IVAL(req->vwv+3, 1);
451 access_mask = IVAL(req->vwv+7, 1);
452 file_attributes = IVAL(req->vwv+13, 1);
453 share_access = IVAL(req->vwv+15, 1);
454 create_disposition = IVAL(req->vwv+17, 1);
455 create_options = IVAL(req->vwv+19, 1);
456 root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
457
458 allocation_size = (uint64_t)IVAL(req->vwv+9, 1);
459 #ifdef LARGE_SMB_OFF_T
460 allocation_size |= (((uint64_t)IVAL(req->vwv+11, 1)) << 32);
461 #endif
462
463 srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
464 STR_TERMINATE, &status);
465
466 if (!NT_STATUS_IS_OK(status)) {
467 reply_nterror(req, status);
468 END_PROFILE(SMBntcreateX);
469 return;
470 }
471
472 DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
473 "file_attributes = 0x%x, share_access = 0x%x, "
474 "create_disposition = 0x%x create_options = 0x%x "
475 "root_dir_fid = 0x%x, fname = %s\n",
476 (unsigned int)flags,
477 (unsigned int)access_mask,
478 (unsigned int)file_attributes,
479 (unsigned int)share_access,
480 (unsigned int)create_disposition,
481 (unsigned int)create_options,
482 (unsigned int)root_dir_fid,
483 fname));
484
485 /*
486 * we need to remove ignored bits when they come directly from the client
487 * because we reuse some of them for internal stuff
488 */
489 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
490
491 /*
492 * If it's an IPC, use the pipe handler.
493 */
494
495 if (IS_IPC(conn)) {
496 if (lp_nt_pipe_support()) {
497 do_ntcreate_pipe_open(conn, req);
498 END_PROFILE(SMBntcreateX);
499 return;
500 }
501 reply_doserror(req, ERRDOS, ERRnoaccess);
502 END_PROFILE(SMBntcreateX);
503 return;
504 }
505
506 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
507 if (oplock_request) {
508 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
509 ? BATCH_OPLOCK : 0;
510 }
511
512 status = SMB_VFS_CREATE_FILE(
513 conn, /* conn */
514 req, /* req */
515 root_dir_fid, /* root_dir_fid */
516 fname, /* fname */
517 CFF_DOS_PATH, /* create_file_flags */
518 access_mask, /* access_mask */
519 share_access, /* share_access */
520 create_disposition, /* create_disposition*/
521 create_options, /* create_options */
522 file_attributes, /* file_attributes */
523 oplock_request, /* oplock_request */
524 allocation_size, /* allocation_size */
525 NULL, /* sd */
526 NULL, /* ea_list */
527 &fsp, /* result */
528 &info, /* pinfo */
529 &sbuf); /* psbuf */
530
531 if (!NT_STATUS_IS_OK(status)) {
532 if (open_was_deferred(req->mid)) {
533 /* We have re-scheduled this call, no error. */
534 END_PROFILE(SMBntcreateX);
535 return;
536 }
537 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_COLLISION)) {
538 reply_botherror(req, status, ERRDOS, ERRfilexists);
539 }
540 else {
541 reply_nterror(req, status);
542 }
543 END_PROFILE(SMBntcreateX);
544 return;
545 }
546
547 /*
548 * If the caller set the extended oplock request bit
549 * and we granted one (by whatever means) - set the
550 * correct bit for extended oplock reply.
551 */
552
553 if (oplock_request &&
554 (lp_fake_oplocks(SNUM(conn))
555 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
556
557 /*
558 * Exclusive oplock granted
559 */
560
561 if (flags & REQUEST_BATCH_OPLOCK) {
562 oplock_granted = BATCH_OPLOCK_RETURN;
563 } else {
564 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
565 }
566 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
567 oplock_granted = LEVEL_II_OPLOCK_RETURN;
568 } else {
569 oplock_granted = NO_OPLOCK_RETURN;
570 }
571
572 file_len = sbuf.st_size;
573 fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
574 if (fattr == 0) {
575 fattr = FILE_ATTRIBUTE_NORMAL;
576 }
577
578 if (flags & EXTENDED_RESPONSE_REQUIRED) {
579 /* This is very strange. We
580 * return 50 words, but only set
581 * the wcnt to 42 ? It's definately
582 * what happens on the wire....
583 */
584 reply_outbuf(req, 50, 0);
585 SCVAL(req->outbuf,smb_wct,42);
586 } else {
587 reply_outbuf(req, 34, 0);
588 }
589
590 p = (char *)req->outbuf + smb_vwv2;
591
592 SCVAL(p, 0, oplock_granted);
593
594 p++;
595 SSVAL(p,0,fsp->fnum);
596 p += 2;
597 if ((create_disposition == FILE_SUPERSEDE)
598 && (info == FILE_WAS_OVERWRITTEN)) {
599 SIVAL(p,0,FILE_WAS_SUPERSEDED);
600 } else {
601 SIVAL(p,0,info);
602 }
603 p += 4;
604
605 /* Create time. */
606 c_timespec = get_create_timespec(
607 &sbuf,lp_fake_dir_create_times(SNUM(conn)));
608 a_timespec = get_atimespec(&sbuf);
609 m_timespec = get_mtimespec(&sbuf);
610
611 if (lp_dos_filetime_resolution(SNUM(conn))) {
612 dos_filetime_timespec(&c_timespec);
613 dos_filetime_timespec(&a_timespec);
614 dos_filetime_timespec(&m_timespec);
615 }
616
617 put_long_date_timespec(p, c_timespec); /* create time. */
618 p += 8;
619 put_long_date_timespec(p, a_timespec); /* access time */
620 p += 8;
621 put_long_date_timespec(p, m_timespec); /* write time */
622 p += 8;
623 put_long_date_timespec(p, m_timespec); /* change time */
624 p += 8;
625 SIVAL(p,0,fattr); /* File Attributes. */
626 p += 4;
627 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&sbuf));
628 p += 8;
629 SOFF_T(p,0,file_len);
630 p += 8;
631 if (flags & EXTENDED_RESPONSE_REQUIRED) {
632 SSVAL(p,2,0x7);
633 }
634 p += 4;
635 SCVAL(p,0,fsp->is_directory ? 1 : 0);
636
637 if (flags & EXTENDED_RESPONSE_REQUIRED) {
638 uint32 perms = 0;
639 p += 25;
640 if (fsp->is_directory
641 || can_write_to_file(conn, fsp->fsp_name, &sbuf)) {
642 perms = FILE_GENERIC_ALL;
643 } else {
644 perms = FILE_GENERIC_READ|FILE_EXECUTE;
645 }
646 SIVAL(p,0,perms);
647 }
648
649 DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
650 fsp->fnum, fsp->fsp_name));
651
652 chain_reply(req);
653 END_PROFILE(SMBntcreateX);
654 return;
655 }
656
657 /****************************************************************************
658 Reply to a NT_TRANSACT_CREATE call to open a pipe.
659 ****************************************************************************/
660
661 static void do_nt_transact_create_pipe(connection_struct *conn,
662 struct smb_request *req,
663 uint16 **ppsetup, uint32 setup_count,
664 char **ppparams, uint32 parameter_count,
665 char **ppdata, uint32 data_count)
666 {
667 char *fname = NULL;
668 char *params = *ppparams;
669 int pnum = -1;
670 char *p = NULL;
671 NTSTATUS status;
672 size_t param_len;
673 uint32 flags;
674 TALLOC_CTX *ctx = talloc_tos();
675
676 /*
677 * Ensure minimum number of parameters sent.
678 */
679
680 if(parameter_count < 54) {
681 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
682 reply_doserror(req, ERRDOS, ERRnoaccess);
683 return;
684 }
685
686 flags = IVAL(params,0);
687
688 srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
689 parameter_count-53, STR_TERMINATE,
690 &status);
691 if (!NT_STATUS_IS_OK(status)) {
692 reply_nterror(req, status);
693 return;
694 }
695
696 nt_open_pipe(fname, conn, req, &pnum);
697
698 if (req->outbuf) {
699 /* Error return */
700 return;
701 }
702
703 /* Realloc the size of parameters and data we will return */
704 if (flags & EXTENDED_RESPONSE_REQUIRED) {
705 /* Extended response is 32 more byyes. */
706 param_len = 101;
707 } else {
708 param_len = 69;
709 }
710 params = nttrans_realloc(ppparams, param_len);
711 if(params == NULL) {
712 reply_doserror(req, ERRDOS, ERRnomem);
713 return;
714 }
715
716 p = params;
717 SCVAL(p,0,NO_OPLOCK_RETURN);
718
719 p += 2;
720 SSVAL(p,0,pnum);
721 p += 2;
722 SIVAL(p,0,FILE_WAS_OPENED);
723 p += 8;
724
725 p += 32;
726 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
727 p += 20;
728 /* File type. */
729 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
730 /* Device state. */
731 SSVAL(p,2, 0x5FF); /* ? */
732 p += 4;
733
734 if (flags & EXTENDED_RESPONSE_REQUIRED) {
735 p += 25;
736 SIVAL(p,0,FILE_GENERIC_ALL);
737 /*
738 * For pipes W2K3 seems to return
739 * 0x12019B next.
740 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
741 */
742 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
743 }
744
745 DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
746
747 /* Send the required number of replies */
748 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
749
750 return;
751 }
752
753 /****************************************************************************
754 Internal fn to set security descriptors.
755 ****************************************************************************/
756
757 static NTSTATUS set_sd(files_struct *fsp, uint8 *data, uint32 sd_len,
758 uint32 security_info_sent)
759 {
760 SEC_DESC *psd = NULL;
761 NTSTATUS status;
762
763 if (sd_len == 0 || !lp_nt_acl_support(SNUM(fsp->conn))) {
764 return NT_STATUS_OK;
765 }
766
767 status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
768
769 if (!NT_STATUS_IS_OK(status)) {
770 return status;
771 }
772
773 if (psd->owner_sid == NULL) {
774 security_info_sent &= ~OWNER_SECURITY_INFORMATION;
775 }
776 if (psd->group_sid == NULL) {
777 security_info_sent &= ~GROUP_SECURITY_INFORMATION;
778 }
779
780 /* Convert all the generic bits. */
781 security_acl_map_generic(psd->dacl, &file_generic_mapping);
782 security_acl_map_generic(psd->sacl, &file_generic_mapping);
783
784 if (DEBUGLEVEL >= 10) {
785 DEBUG(10,("set_sd for file %s\n", fsp->fsp_name ));
786 NDR_PRINT_DEBUG(security_descriptor, psd);
787 }
788
789 status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
790
791 TALLOC_FREE(psd);
792
793 return status;
794 }
795
796 /****************************************************************************
797 Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
798 ****************************************************************************/
799
800 static struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
801 {
802 struct ea_list *ea_list_head = NULL;
803 size_t offset = 0;
804
805 if (data_size < 4) {
806 return NULL;
807 }
808
809 while (offset + 4 <= data_size) {
810 size_t next_offset = IVAL(pdata,offset);
811 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
812
813 if (!eal) {
814 return NULL;
815 }
816
817 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
818 if (next_offset == 0) {
819 break;
820 }
821 offset += next_offset;
822 }
823
824 return ea_list_head;
825 }
826
827 /****************************************************************************
828 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
829 ****************************************************************************/
830
831 static void call_nt_transact_create(connection_struct *conn,
832 struct smb_request *req,
833 uint16 **ppsetup, uint32 setup_count,
834 char **ppparams, uint32 parameter_count,
835 char **ppdata, uint32 data_count,
836 uint32 max_data_count)
837 {
838 char *fname = NULL;
839 char *params = *ppparams;
840 char *data = *ppdata;
841 /* Breakout the oplock request bits so we can set the reply bits separately. */
842 uint32 fattr=0;
843 SMB_OFF_T file_len = 0;
844 SMB_STRUCT_STAT sbuf;
845 int info = 0;
846 files_struct *fsp = NULL;
847 char *p = NULL;
848 uint32 flags;
849 uint32 access_mask;
850 uint32 file_attributes;
851 uint32 share_access;
852 uint32 create_disposition;
853 uint32 create_options;
854 uint32 sd_len;
855 struct security_descriptor *sd = NULL;
856 uint32 ea_len;
857 uint16 root_dir_fid;
858 struct timespec c_timespec;
859 struct timespec a_timespec;
860 struct timespec m_timespec;
861 struct ea_list *ea_list = NULL;
862 NTSTATUS status;
863 size_t param_len;
864 uint64_t allocation_size;
865 int oplock_request;
866 uint8_t oplock_granted;
867 TALLOC_CTX *ctx = talloc_tos();
868
869 SET_STAT_INVALID(sbuf);
870
871 DEBUG(5,("call_nt_transact_create\n"));
872
873 /*
874 * If it's an IPC, use the pipe handler.
875 */
876
877 if (IS_IPC(conn)) {
878 if (lp_nt_pipe_support()) {
879 do_nt_transact_create_pipe(
880 conn, req,
881 ppsetup, setup_count,
882 ppparams, parameter_count,
883 ppdata, data_count);
884 return;
885 }
886 reply_doserror(req, ERRDOS, ERRnoaccess);
887 return;
888 }
889
890 /*
891 * Ensure minimum number of parameters sent.
892 */
893
894 if(parameter_count < 54) {
895 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
896 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
897 return;
898 }
899
900 flags = IVAL(params,0);
901 access_mask = IVAL(params,8);
902 file_attributes = IVAL(params,20);
903 share_access = IVAL(params,24);
904 create_disposition = IVAL(params,28);
905 create_options = IVAL(params,32);
906 sd_len = IVAL(params,36);
907 ea_len = IVAL(params,40);
908 root_dir_fid = (uint16)IVAL(params,4);
909 allocation_size = (uint64_t)IVAL(params,12);
910 #ifdef LARGE_SMB_OFF_T
911 allocation_size |= (((uint64_t)IVAL(params,16)) << 32);
912 #endif
913
914 /*
915 * we need to remove ignored bits when they come directly from the client
916 * because we reuse some of them for internal stuff
917 */
918 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
919
920 /* Ensure the data_len is correct for the sd and ea values given. */
921 if ((ea_len + sd_len > data_count)
922 || (ea_len > data_count) || (sd_len > data_count)
923 || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
924 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
925 "%u, data_count = %u\n", (unsigned int)ea_len,
926 (unsigned int)sd_len, (unsigned int)data_count));
927 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
928 return;
929 }
930
931 if (sd_len) {
932 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
933 sd_len));
934
935 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
936 &sd);
937 if (!NT_STATUS_IS_OK(status)) {
938 DEBUG(10, ("call_nt_transact_create: "
939 "unmarshall_sec_desc failed: %s\n",
940 nt_errstr(status)));
941 reply_nterror(req, status);
942 return;
943 }
944 }
945
946 if (ea_len) {
947 if (!lp_ea_support(SNUM(conn))) {
948 DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
949 "EA's not supported.\n",
950 (unsigned int)ea_len));
951 reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
952 return;
953 }
954
955 if (ea_len < 10) {
956 DEBUG(10,("call_nt_transact_create - ea_len = %u - "
957 "too small (should be more than 10)\n",
958 (unsigned int)ea_len ));
959 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
960 return;
961 }
962
963 /* We have already checked that ea_len <= data_count here. */
964 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
965 ea_len);
966 if (ea_list == NULL) {
967 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
968 return;
969 }
970 }
971
972 srvstr_get_path(ctx, params, req->flags2, &fname,
973 params+53, parameter_count-53,
974 STR_TERMINATE, &status);
975 if (!NT_STATUS_IS_OK(status)) {
976 reply_nterror(req, status);
977 return;
978 }
979
980 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
981 if (oplock_request) {
982 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
983 ? BATCH_OPLOCK : 0;
984 }
985
986 status = SMB_VFS_CREATE_FILE(
987 conn, /* conn */
988 req, /* req */
989 root_dir_fid, /* root_dir_fid */
990 fname, /* fname */
991 CFF_DOS_PATH, /* create_file_flags */
992 access_mask, /* access_mask */
993 share_access, /* share_access */
994 create_disposition, /* create_disposition*/
995 create_options, /* create_options */
996 file_attributes, /* file_attributes */
997 oplock_request, /* oplock_request */
998 allocation_size, /* allocation_size */
999 sd, /* sd */
1000 ea_list, /* ea_list */
1001 &fsp, /* result */
1002 &info, /* pinfo */
1003 &sbuf); /* psbuf */
1004
1005 if(!NT_STATUS_IS_OK(status)) {
1006 if (open_was_deferred(req->mid)) {
1007 /* We have re-scheduled this call, no error. */
1008 return;
1009 }
1010 reply_openerror(req, status);
1011 return;
1012 }
1013
1014 /*
1015 * If the caller set the extended oplock request bit
1016 * and we granted one (by whatever means) - set the
1017 * correct bit for extended oplock reply.
1018 */
1019
1020 if (oplock_request &&
1021 (lp_fake_oplocks(SNUM(conn))
1022 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1023
1024 /*
1025 * Exclusive oplock granted
1026 */
1027
1028 if (flags & REQUEST_BATCH_OPLOCK) {
1029 oplock_granted = BATCH_OPLOCK_RETURN;
1030 } else {
1031 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1032 }
1033 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1034 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1035 } else {
1036 oplock_granted = NO_OPLOCK_RETURN;
1037 }
1038
1039 file_len = sbuf.st_size;
1040 fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
1041 if (fattr == 0) {
1042 fattr = FILE_ATTRIBUTE_NORMAL;
1043 }
1044
1045 /* Realloc the size of parameters and data we will return */
1046 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1047 /* Extended response is 32 more byyes. */
1048 param_len = 101;
1049 } else {
1050 param_len = 69;
1051 }
1052 params = nttrans_realloc(ppparams, param_len);
1053 if(params == NULL) {
1054 reply_doserror(req, ERRDOS, ERRnomem);
1055 return;
1056 }
1057
1058 p = params;
1059 SCVAL(p, 0, oplock_granted);
1060
1061 p += 2;
1062 SSVAL(p,0,fsp->fnum);
1063 p += 2;
1064 if ((create_disposition == FILE_SUPERSEDE)
1065 && (info == FILE_WAS_OVERWRITTEN)) {
1066 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1067 } else {
1068 SIVAL(p,0,info);
1069 }
1070 p += 8;
1071
1072 /* Create time. */
1073 c_timespec = get_create_timespec(
1074 &sbuf,lp_fake_dir_create_times(SNUM(conn)));
1075 a_timespec = get_atimespec(&sbuf);
1076 m_timespec = get_mtimespec(&sbuf);
1077
1078 if (lp_dos_filetime_resolution(SNUM(conn))) {
1079 dos_filetime_timespec(&c_timespec);
1080 dos_filetime_timespec(&a_timespec);
1081 dos_filetime_timespec(&m_timespec);
1082 }
1083
1084 put_long_date_timespec(p, c_timespec); /* create time. */
1085 p += 8;
1086 put_long_date_timespec(p, a_timespec); /* access time */
1087 p += 8;
1088 put_long_date_timespec(p, m_timespec); /* write time */
1089 p += 8;
1090 put_long_date_timespec(p, m_timespec); /* change time */
1091 p += 8;
1092 SIVAL(p,0,fattr); /* File Attributes. */
1093 p += 4;
1094 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&sbuf));
1095 p += 8;
1096 SOFF_T(p,0,file_len);
1097 p += 8;
1098 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1099 SSVAL(p,2,0x7);
1100 }
1101 p += 4;
1102 SCVAL(p,0,fsp->is_directory ? 1 : 0);
1103
1104 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1105 uint32 perms = 0;
1106 p += 25;
1107 if (fsp->is_directory
1108 || can_write_to_file(conn, fsp->fsp_name, &sbuf)) {
1109 perms = FILE_GENERIC_ALL;
1110 } else {
1111 perms = FILE_GENERIC_READ|FILE_EXECUTE;
1112 }
1113 SIVAL(p,0,perms);
1114 }
1115
1116 DEBUG(5,("call_nt_transact_create: open name = %s\n", fsp->fsp_name));
1117
1118 /* Send the required number of replies */
1119 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1120
1121 return;
1122 }
1123
1124 /****************************************************************************
1125 Reply to a NT CANCEL request.
1126 conn POINTER CAN BE NULL HERE !
1127 ****************************************************************************/
1128
1129 void reply_ntcancel(struct smb_request *req)
1130 {
1131 /*
1132 * Go through and cancel any pending change notifies.
1133 */
1134
1135 START_PROFILE(SMBntcancel);
1136 remove_pending_change_notify_requests_by_mid(req->mid);
1137 remove_pending_lock_requests_by_mid(req->mid);
1138 srv_cancel_sign_response(req->mid, true);
1139
1140 DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", req->mid));
1141
1142 END_PROFILE(SMBntcancel);
1143 return;
1144 }
1145
1146 /****************************************************************************
1147 Copy a file.
1148 ****************************************************************************/
1149
1150 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1151 connection_struct *conn,
1152 struct smb_request *req,
1153 const char *oldname_in,
1154 const char *newname_in,
1155 uint32 attrs)
1156 {
1157 SMB_STRUCT_STAT sbuf1, sbuf2;
1158 char *oldname = NULL;
1159 char *newname = NULL;
1160 char *last_component_oldname = NULL;
1161 char *last_component_newname = NULL;
1162 files_struct *fsp1,*fsp2;
1163 uint32 fattr;
1164 int info;
1165 SMB_OFF_T ret=-1;
1166 NTSTATUS status = NT_STATUS_OK;
1167 char *parent;
1168
1169 ZERO_STRUCT(sbuf1);
1170 ZERO_STRUCT(sbuf2);
1171
1172 if (!CAN_WRITE(conn)) {
1173 return NT_STATUS_MEDIA_WRITE_PROTECTED;
1174 }
1175
1176 status = unix_convert(ctx, conn, oldname_in, False, &oldname,
1177 &last_component_oldname, &sbuf1);
1178 if (!NT_STATUS_IS_OK(status)) {
1179 return status;
1180 }
1181
1182 status = check_name(conn, oldname);
1183 if (!NT_STATUS_IS_OK(status)) {
1184 return status;
1185 }
1186
1187 /* Source must already exist. */
1188 if (!VALID_STAT(sbuf1)) {
1189 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
1190 }
1191 /* Ensure attributes match. */
1192 fattr = dos_mode(conn,oldname,&sbuf1);
1193 if ((fattr & ~attrs) & (aHIDDEN | aSYSTEM)) {
1194 return NT_STATUS_NO_SUCH_FILE;
1195 }
1196
1197 status = unix_convert(ctx, conn, newname_in, False, &newname,
1198 &last_component_newname, &sbuf2);
1199 if (!NT_STATUS_IS_OK(status)) {
1200 return status;
1201 }
1202
1203 status = check_name(conn, newname);
1204 if (!NT_STATUS_IS_OK(status)) {
1205 return status;
1206 }
1207
1208 /* Disallow if newname already exists. */
1209 if (VALID_STAT(sbuf2)) {
1210 return NT_STATUS_OBJECT_NAME_COLLISION;
1211 }
1212
1213 /* No links from a directory. */
1214 if (S_ISDIR(sbuf1.st_mode)) {
1215 return NT_STATUS_FILE_IS_A_DIRECTORY;
1216 }
1217
1218 /* Ensure this is within the share. */
1219 status = check_reduced_name(conn, oldname);
1220 if (!NT_STATUS_IS_OK(status)) {
1221 return status;
1222 }
1223
1224 DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1225 oldname, newname));
1226
1227 status = SMB_VFS_CREATE_FILE(
1228 conn, /* conn */
1229 req, /* req */
1230 0, /* root_dir_fid */
1231 oldname, /* fname */
1232 0, /* create_file_flags */
1233 FILE_READ_DATA, /* access_mask */
1234 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1235 FILE_SHARE_DELETE),
1236 FILE_OPEN, /* create_disposition*/
1237 0, /* create_options */
1238 FILE_ATTRIBUTE_NORMAL, /* file_attributes */
1239 NO_OPLOCK, /* oplock_request */
1240 0, /* allocation_size */
1241 NULL, /* sd */
1242 NULL, /* ea_list */
1243 &fsp1, /* result */
1244 &info, /* pinfo */
1245 &sbuf1); /* psbuf */
1246
1247 if (!NT_STATUS_IS_OK(status)) {
1248 return status;
1249 }
1250
1251 status = SMB_VFS_CREATE_FILE(
1252 conn, /* conn */
1253 req, /* req */
1254 0, /* root_dir_fid */
1255 newname, /* fname */
1256 0, /* create_file_flags */
1257 FILE_WRITE_DATA, /* access_mask */
1258 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1259 FILE_SHARE_DELETE),
1260 FILE_CREATE, /* create_disposition*/
1261 0, /* create_options */
1262 fattr, /* file_attributes */
1263 NO_OPLOCK, /* oplock_request */
1264 0, /* allocation_size */
1265 NULL, /* sd */
1266 NULL, /* ea_list */
1267 &fsp2, /* result */
1268 &info, /* pinfo */
1269 &sbuf2); /* psbuf */
1270
1271 if (!NT_STATUS_IS_OK(status)) {
1272 close_file(NULL, fsp1, ERROR_CLOSE);
1273 return status;
1274 }
1275
1276 if (sbuf1.st_size) {
1277 ret = vfs_transfer_file(fsp1, fsp2, sbuf1.st_size);
1278 }
1279
1280 /*
1281 * As we are opening fsp1 read-only we only expect
1282 * an error on close on fsp2 if we are out of space.
1283 * Thus we don't look at the error return from the
1284 * close of fsp1.
1285 */
1286 close_file(NULL, fsp1, NORMAL_CLOSE);
1287
1288 /* Ensure the modtime is set correctly on the destination file. */
1289 set_close_write_time(fsp2, get_mtimespec(&sbuf1));
1290
1291 status = close_file(NULL, fsp2, NORMAL_CLOSE);
1292
1293 /* Grrr. We have to do this as open_file_ntcreate adds aARCH when it
1294 creates the file. This isn't the correct thing to do in the copy
1295 case. JRA */
1296 if (!parent_dirname(talloc_tos(), newname, &parent, NULL)) {
1297 return NT_STATUS_NO_MEMORY;
1298 }
1299 file_set_dosmode(conn, newname, fattr, &sbuf2, parent, false);
1300 TALLOC_FREE(parent);
1301
1302 if (ret < (SMB_OFF_T)sbuf1.st_size) {
1303 return NT_STATUS_DISK_FULL;
1304 }
1305
1306 if (!NT_STATUS_IS_OK(status)) {
1307 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1308 nt_errstr(status), oldname, newname));
1309 }
1310 return status;
1311 }
1312
1313 /****************************************************************************
1314 Reply to a NT rename request.
1315 ****************************************************************************/
1316
1317 void reply_ntrename(struct smb_request *req)
1318 {
1319 connection_struct *conn = req->conn;
1320 char *oldname = NULL;
1321 char *newname = NULL;
1322 const char *p;
1323 NTSTATUS status;
1324 bool src_has_wcard = False;
1325 bool dest_has_wcard = False;
1326 uint32 attrs;
1327 uint16 rename_type;
1328 TALLOC_CTX *ctx = talloc_tos();
1329
1330 START_PROFILE(SMBntrename);
1331
1332 if (req->wct < 4) {
1333 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1334 END_PROFILE(SMBntrename);
1335 return;
1336 }
1337
1338 attrs = SVAL(req->vwv+0, 0);
1339 rename_type = SVAL(req->vwv+1, 0);
1340
1341 p = (const char *)req->buf + 1;
1342 p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1343 &status, &src_has_wcard);
1344 if (!NT_STATUS_IS_OK(status)) {
1345 reply_nterror(req, status);
1346 END_PROFILE(SMBntrename);
1347 return;
1348 }
1349
1350 if (ms_has_wild(oldname)) {
1351 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1352 END_PROFILE(SMBntrename);
1353 return;
1354 }
1355
1356 p++;
1357 p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1358 &status, &dest_has_wcard);
1359 if (!NT_STATUS_IS_OK(status)) {
1360 reply_nterror(req, status);
1361 END_PROFILE(SMBntrename);
1362 return;
1363 }
1364
1365 status = resolve_dfspath(ctx, conn,
1366 req->flags2 & FLAGS2_DFS_PATHNAMES,
1367 oldname,
1368 &oldname);
1369 if (!NT_STATUS_IS_OK(status)) {
1370 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1371 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1372 ERRSRV, ERRbadpath);
1373 END_PROFILE(SMBntrename);
1374 return;
1375 }
1376 reply_nterror(req, status);
1377 END_PROFILE(SMBntrename);
1378 return;
1379 }
1380
1381 status = resolve_dfspath(ctx, conn,
1382 req->flags2 & FLAGS2_DFS_PATHNAMES,
1383 newname,
1384 &newname);
1385 if (!NT_STATUS_IS_OK(status)) {
1386 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1387 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1388 ERRSRV, ERRbadpath);
1389 END_PROFILE(SMBntrename);
1390 return;
1391 }
1392 reply_nterror(req, status);
1393 END_PROFILE(SMBntrename);
1394 return;
1395 }
1396
1397 /* The new name must begin with a ':' if the old name is a stream. */
1398 if (is_ntfs_stream_name(oldname) && (newname[0] != ':')) {
1399 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1400 END_PROFILE(SMBntrename);
1401 return;
1402 }
1403
1404 DEBUG(3,("reply_ntrename : %s -> %s\n",oldname,newname));
1405
1406 switch(rename_type) {
1407 case RENAME_FLAG_RENAME:
1408 status = rename_internals(ctx, conn, req, oldname,
1409 newname, attrs, False, src_has_wcard,
1410 dest_has_wcard, DELETE_ACCESS);
1411 break;
1412 case RENAME_FLAG_HARD_LINK:
1413 if (src_has_wcard || dest_has_wcard) {
1414 /* No wildcards. */
1415 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1416 } else {
1417 status = hardlink_internals(ctx,
1418 conn,
1419 oldname,
1420 newname);
1421 }
1422 break;
1423 case RENAME_FLAG_COPY:
1424 if (src_has_wcard || dest_has_wcard) {
1425 /* No wildcards. */
1426 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1427 } else {
1428 status = copy_internals(ctx, conn, req, oldname,
1429 newname, attrs);
1430 }
1431 break;
1432 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1433 status = NT_STATUS_INVALID_PARAMETER;
1434 break;
1435 default:
1436 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1437 break;
1438 }
1439
1440 if (!NT_STATUS_IS_OK(status)) {
1441 if (open_was_deferred(req->mid)) {
1442 /* We have re-scheduled this call. */
1443 END_PROFILE(SMBntrename);
1444 return;
1445 }
1446
1447 reply_nterror(req, status);
1448 END_PROFILE(SMBntrename);
1449 return;
1450 }
1451
1452 reply_outbuf(req, 0, 0);
1453
1454 END_PROFILE(SMBntrename);
1455 return;
1456 }
1457
1458 /****************************************************************************
1459 Reply to a notify change - queue the request and
1460 don't allow a directory to be opened.
1461 ****************************************************************************/
1462
1463 static void call_nt_transact_notify_change(connection_struct *conn,
1464 struct smb_request *req,
1465 uint16 **ppsetup,
1466 uint32 setup_count,
1467 char **ppparams,
1468 uint32 parameter_count,
1469 char **ppdata, uint32 data_count,
1470 uint32 max_data_count,
1471 uint32 max_param_count)
1472 {
1473 uint16 *setup = *ppsetup;
1474 files_struct *fsp;
1475 uint32 filter;
1476 NTSTATUS status;
1477 bool recursive;
1478
1479 if(setup_count < 6) {
1480 reply_doserror(req, ERRDOS, ERRbadfunc);
1481 return;
1482 }
1483
1484 fsp = file_fsp(req, SVAL(setup,4));
1485 filter = IVAL(setup, 0);
1486 recursive = (SVAL(setup, 6) != 0) ? True : False;
1487
1488 DEBUG(3,("call_nt_transact_notify_change\n"));
1489
1490 if(!fsp) {
1491 reply_doserror(req, ERRDOS, ERRbadfid);
1492 return;
1493 }
1494
1495 {
1496 char *filter_string;
1497
1498 if (!(filter_string = notify_filter_string(NULL, filter))) {
1499 reply_nterror(req,NT_STATUS_NO_MEMORY);
1500 return;
1501 }
1502
1503 DEBUG(3,("call_nt_transact_notify_change: notify change "
1504 "called on %s, filter = %s, recursive = %d\n",
1505 fsp->fsp_name, filter_string, recursive));
1506
1507 TALLOC_FREE(filter_string);
1508 }
1509
1510 if((!fsp->is_directory) || (conn != fsp->conn)) {
1511 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1512 return;
1513 }
1514
1515 if (fsp->notify == NULL) {
1516
1517 status = change_notify_create(fsp, filter, recursive);
1518
1519 if (!NT_STATUS_IS_OK(status)) {
1520 DEBUG(10, ("change_notify_create returned %s\n",
1521 nt_errstr(status)));
1522 reply_nterror(req, status);
1523 return;
1524 }
1525 }
1526
1527 if (fsp->notify->num_changes != 0) {
1528
1529 /*
1530 * We've got changes pending, respond immediately
1531 */
1532
1533 /*
1534 * TODO: write a torture test to check the filtering behaviour
1535 * here.
1536 */
1537
1538 change_notify_reply(fsp->conn, req, max_param_count,
1539 fsp->notify);
1540
1541 /*
1542 * change_notify_reply() above has independently sent its
1543 * results
1544 */
1545 return;
1546 }
1547
1548 /*
1549 * No changes pending, queue the request
1550 */
1551
1552 status = change_notify_add_request(req,
1553 max_param_count,
1554 filter,
1555 recursive, fsp);
1556 if (!NT_STATUS_IS_OK(status)) {
1557 reply_nterror(req, status);
1558 }
1559 return;
1560 }
1561
1562 /****************************************************************************
1563 Reply to an NT transact rename command.
1564 ****************************************************************************/
1565
1566 static void call_nt_transact_rename(connection_struct *conn,
1567 struct smb_request *req,
1568 uint16 **ppsetup, uint32 setup_count,
1569 char **ppparams, uint32 parameter_count,
1570 char **ppdata, uint32 data_count,
1571 uint32 max_data_count)
1572 {
1573 char *params = *ppparams;
1574 char *new_name = NULL;
1575 files_struct *fsp = NULL;
1576 bool dest_has_wcard = False;
1577 NTSTATUS status;
1578 TALLOC_CTX *ctx = talloc_tos();
1579
1580 if(parameter_count < 5) {
1581 reply_doserror(req, ERRDOS, ERRbadfunc);
1582 return;
1583 }
1584
1585 fsp = file_fsp(req, SVAL(params, 0));
1586 if (!check_fsp(conn, req, fsp)) {
1587 return;
1588 }
1589 srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1590 parameter_count - 4,
1591 STR_TERMINATE, &status, &dest_has_wcard);
1592 if (!NT_STATUS_IS_OK(status)) {
1593 reply_nterror(req, status);
1594 return;
1595 }
1596
1597 /*
1598 * W2K3 ignores this request as the RAW-RENAME test
1599 * demonstrates, so we do.
1600 */
1601 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1602
1603 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1604 fsp->fsp_name, new_name));
1605
1606 return;
1607 }
1608
1609 /******************************************************************************
1610 Fake up a completely empty SD.
1611 *******************************************************************************/
1612
1613 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
1614 {
1615 size_t sd_size;
1616
1617 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1618 if(!*ppsd) {
1619 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1620 return NT_STATUS_NO_MEMORY;
1621 }
1622
1623 return NT_STATUS_OK;
1624 }
1625
1626 /****************************************************************************
1627 Reply to query a security descriptor.
1628 ****************************************************************************/
1629
1630 static void call_nt_transact_query_security_desc(connection_struct *conn,
1631 struct smb_request *req,
1632 uint16 **ppsetup,
1633 uint32 setup_count,
1634 char **ppparams,
1635 uint32 parameter_count,
1636 char **ppdata,
1637 uint32 data_count,
1638 uint32 max_data_count)
1639 {
1640 char *params = *ppparams;
1641 char *data = *ppdata;
1642 SEC_DESC *psd = NULL;
1643 size_t sd_size;
1644 uint32 security_info_wanted;
1645 files_struct *fsp = NULL;
1646 NTSTATUS status;
1647 DATA_BLOB blob;
1648
1649 if(parameter_count < 8) {
1650 reply_doserror(req, ERRDOS, ERRbadfunc);
1651 return;
1652 }
1653
1654 fsp = file_fsp(req, SVAL(params,0));
1655 if(!fsp) {
1656 reply_doserror(req, ERRDOS, ERRbadfid);
1657 return;
1658 }
1659
1660 security_info_wanted = IVAL(params,4);
1661
1662 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, info_wanted = 0x%x\n", fsp->fsp_name,
1663 (unsigned int)security_info_wanted ));
1664
1665 params = nttrans_realloc(ppparams, 4);
1666 if(params == NULL) {
1667 reply_doserror(req, ERRDOS, ERRnomem);
1668 return;
1669 }
1670
1671 /*
1672 * Get the permissions to return.
1673 */
1674
1675 if (!lp_nt_acl_support(SNUM(conn))) {
1676 status = get_null_nt_acl(talloc_tos(), &psd);
1677 } else {
1678 status = SMB_VFS_FGET_NT_ACL(
1679 fsp, security_info_wanted, &psd);
1680 }
1681 if (!NT_STATUS_IS_OK(status)) {
1682 reply_nterror(req, status);
1683 return;
1684 }
1685
1686 /* If the SACL/DACL is NULL, but was requested, we mark that it is
1687 * present in the reply to match Windows behavior */
1688 if (psd->sacl == NULL &&
1689 security_info_wanted & SACL_SECURITY_INFORMATION)
1690 psd->type |= SEC_DESC_SACL_PRESENT;
1691 if (psd->dacl == NULL &&
1692 security_info_wanted & DACL_SECURITY_INFORMATION)
1693 psd->type |= SEC_DESC_DACL_PRESENT;
1694
1695 sd_size = ndr_size_security_descriptor(psd, NULL, 0);
1696
1697 DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %lu.\n",(unsigned long)sd_size));
1698
1699 if (DEBUGLEVEL >= 10) {
1700 DEBUG(10,("call_nt_transact_query_security_desc for file %s\n", fsp->fsp_name));
1701 NDR_PRINT_DEBUG(security_descriptor, psd);
1702 }
1703
1704 SIVAL(params,0,(uint32)sd_size);
1705
1706 if (max_data_count < sd_size) {
1707 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1708 params, 4, *ppdata, 0);
1709 return;
1710 }
1711
1712 /*
1713 * Allocate the data we will point this at.
1714 */
1715
1716 data = nttrans_realloc(ppdata, sd_size);
1717 if(data == NULL) {
1718 reply_doserror(req, ERRDOS, ERRnomem);
1719 return;
1720 }
1721
1722 status = marshall_sec_desc(talloc_tos(), psd,
1723 &blob.data, &blob.length);
1724
1725 if (!NT_STATUS_IS_OK(status)) {
1726 reply_nterror(req, status);
1727 return;
1728 }
1729
1730 SMB_ASSERT(sd_size == blob.length);
1731 memcpy(data, blob.data, sd_size);
1732
1733 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
1734
1735 return;
1736 }
1737
1738 /****************************************************************************
1739 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
1740 ****************************************************************************/
1741
1742 static void call_nt_transact_set_security_desc(connection_struct *conn,
1743 struct smb_request *req,
1744 uint16 **ppsetup,
1745 uint32 setup_count,
1746 char **ppparams,
1747 uint32 parameter_count,
1748 char **ppdata,
1749 uint32 data_count,
1750 uint32 max_data_count)
1751 {
1752 char *params= *ppparams;
1753 char *data = *ppdata;
1754 files_struct *fsp = NULL;
1755 uint32 security_info_sent = 0;
1756 NTSTATUS status;
1757
1758 if(parameter_count < 8) {
1759 reply_doserror(req, ERRDOS, ERRbadfunc);
1760 return;
1761 }
1762
1763 if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
1764 reply_doserror(req, ERRDOS, ERRbadfid);
1765 return;
1766 }
1767
1768 if(!lp_nt_acl_support(SNUM(conn))) {
1769 goto done;
1770 }
1771
1772 security_info_sent = IVAL(params,4);
1773
1774 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n", fsp->fsp_name,
1775 (unsigned int)security_info_sent ));
1776
1777 if (data_count == 0) {
1778 reply_doserror(req, ERRDOS, ERRnoaccess);
1779 return;
1780 }
1781
1782 status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
1783
1784 if (!NT_STATUS_IS_OK(status)) {
1785 reply_nterror(req, status);
1786 return;
1787 }
1788
1789 done:
1790 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1791 return;
1792 }
1793
1794 /****************************************************************************
1795 Reply to NT IOCTL
1796 ****************************************************************************/
1797
1798 static void call_nt_transact_ioctl(connection_struct *conn,
1799 struct smb_request *req,
1800 uint16 **ppsetup, uint32 setup_count,
1801 char **ppparams, uint32 parameter_count,
1802 char **ppdata, uint32 data_count,
1803 uint32 max_data_count)
1804 {
1805 uint32 function;
1806 uint16 fidnum;
1807 files_struct *fsp;
1808 uint8 isFSctl;
1809 uint8 compfilter;
1810 char *pdata = *ppdata;
1811
1812 if (setup_count != 8) {
1813 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
1814 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1815 return;
1816 }
1817
1818 function = IVAL(*ppsetup, 0);
1819 fidnum = SVAL(*ppsetup, 4);
1820 isFSctl = CVAL(*ppsetup, 6);
1821 compfilter = CVAL(*ppsetup, 7);
1822
1823 DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
1824 function, fidnum, isFSctl, compfilter));
1825
1826 fsp=file_fsp(req, fidnum);
1827 /* this check is done in each implemented function case for now
1828 because I don't want to break anything... --metze
1829 FSP_BELONGS_CONN(fsp,conn);*/
1830
1831 SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
1832
1833 switch (function) {
1834 case FSCTL_SET_SPARSE:
1835 /* pretend this succeeded - tho strictly we should
1836 mark the file sparse (if the local fs supports it)
1837 so we can know if we need to pre-allocate or not */
1838
1839 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum));
1840 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1841 return;
1842
1843 case FSCTL_CREATE_OR_GET_OBJECT_ID:
1844 {
1845 unsigned char objid[16];
1846
1847 /* This should return the object-id on this file.
1848 * I think I'll make this be the inode+dev. JRA.
1849 */
1850
1851 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
1852
1853 if (!fsp_belongs_conn(conn, req, fsp)) {
1854 return;
1855 }
1856
1857 data_count = 64;
1858 pdata = nttrans_realloc(ppdata, data_count);
1859 if (pdata == NULL) {
1860 reply_nterror(req, NT_STATUS_NO_MEMORY);
1861 return;
1862 }
1863
1864 /* For backwards compatibility only store the dev/inode. */
1865 push_file_id_16(pdata, &fsp->file_id);
1866 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
1867 push_file_id_16(pdata+32, &fsp->file_id);
1868 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
1869 pdata, data_count);
1870 return;
1871 }
1872
1873 case FSCTL_GET_REPARSE_POINT:
1874 /* pretend this fail - my winXP does it like this
1875 * --metze
1876 */
1877
1878 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1879 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1880 return;
1881
1882 case FSCTL_SET_REPARSE_POINT:
1883 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
1884 * --metze
1885 */
1886
1887 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1888 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1889 return;
1890
1891 case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
1892 {
1893 /*
1894 * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
1895 * and return their volume names. If max_data_count is 16, then it is just
1896 * asking for the number of volumes and length of the combined names.
1897 *
1898 * pdata is the data allocated by our caller, but that uses
1899 * total_data_count (which is 0 in our case) rather than max_data_count.
1900 * Allocate the correct amount and return the pointer to let
1901 * it be deallocated when we return.
1902 */
1903 SHADOW_COPY_DATA *shadow_data = NULL;
1904 TALLOC_CTX *shadow_mem_ctx = NULL;
1905 bool labels = False;
1906 uint32 labels_data_count = 0;
1907 uint32 i;
1908 char *cur_pdata;
1909
1910 if (!fsp_belongs_conn(conn, req, fsp)) {
1911 return;
1912 }
1913
1914 if (max_data_count < 16) {
1915 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
1916 max_data_count));
1917 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1918 return;
1919 }
1920
1921 if (max_data_count > 16) {
1922 labels = True;
1923 }
1924
1925 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
1926 if (shadow_mem_ctx == NULL) {
1927 DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
1928 reply_nterror(req, NT_STATUS_NO_MEMORY);
1929 return;
1930 }
1931
1932 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
1933 if (shadow_data == NULL) {
1934 DEBUG(0,("TALLOC_ZERO() failed!\n"));
1935 talloc_destroy(shadow_mem_ctx);
1936 reply_nterror(req, NT_STATUS_NO_MEMORY);
1937 return;
1938 }
1939
1940 shadow_data->mem_ctx = shadow_mem_ctx;
1941
1942 /*
1943 * Call the VFS routine to actually do the work.
1944 */
1945 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
1946 talloc_destroy(shadow_data->mem_ctx);
1947 if (errno == ENOSYS) {
1948 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
1949 conn->connectpath));
1950 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1951 return;
1952 } else {
1953 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
1954 conn->connectpath));
1955 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
1956 return;
1957 }
1958 }
1959
1960 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
1961
1962 if (!labels) {
1963 data_count = 16;
1964 } else {
1965 data_count = 12+labels_data_count+4;
1966 }
1967
1968 if (max_data_count<data_count) {
1969 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
1970 max_data_count,data_count));
1971 talloc_destroy(shadow_data->mem_ctx);
1972 reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
1973 return;
1974 }
1975
1976 pdata = nttrans_realloc(ppdata, data_count);
1977 if (pdata == NULL) {
1978 talloc_destroy(shadow_data->mem_ctx);
1979 reply_nterror(req, NT_STATUS_NO_MEMORY);
1980 return;
1981 }
1982
1983 cur_pdata = pdata;
1984
1985 /* num_volumes 4 bytes */
1986 SIVAL(pdata,0,shadow_data->num_volumes);
1987
1988 if (labels) {
1989 /* num_labels 4 bytes */
1990 SIVAL(pdata,4,shadow_data->num_volumes);
1991 }
1992
1993 /* needed_data_count 4 bytes */
1994 SIVAL(pdata,8,labels_data_count);
1995
1996 cur_pdata+=12;
1997
1998 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
1999 shadow_data->num_volumes,fsp->fsp_name));
2000 if (labels && shadow_data->labels) {
2001 for (i=0;i<shadow_data->num_volumes;i++) {
2002 srvstr_push(pdata, req->flags2,
2003 cur_pdata, shadow_data->labels[i],
2004 2*sizeof(SHADOW_COPY_LABEL),
2005 STR_UNICODE|STR_TERMINATE);
2006 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
2007 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
2008 }
2009 }
2010
2011 talloc_destroy(shadow_data->mem_ctx);
2012
2013 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2014 pdata, data_count);
2015
2016 return;
2017 }
2018
2019 case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
2020 {
2021 /* pretend this succeeded -
2022 *
2023 * we have to send back a list with all files owned by this SID
2024 *
2025 * but I have to check that --metze
2026 */
2027 DOM_SID sid;
2028 uid_t uid;
2029 size_t sid_len = MIN(data_count-4,SID_MAX_SIZE);
2030
2031 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
2032
2033 if (!fsp_belongs_conn(conn, req, fsp)) {
2034 return;
2035 }
2036
2037 /* unknown 4 bytes: this is not the length of the sid :-( */
2038 /*unknown = IVAL(pdata,0);*/
2039
2040 sid_parse(pdata+4,sid_len,&sid);
2041 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
2042
2043 if (!sid_to_uid(&sid, &uid)) {
2044 DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
2045 sid_string_dbg(&sid),
2046 (unsigned long)sid_len));
2047 uid = (-1);
2048 }
2049
2050 /* we can take a look at the find source :-)
2051 *
2052 * find ./ -uid $uid -name '*' is what we need here
2053 *
2054 *
2055 * and send 4bytes len and then NULL terminated unicode strings
2056 * for each file
2057 *
2058 * but I don't know how to deal with the paged results
2059 * (maybe we can hang the result anywhere in the fsp struct)
2060 *
2061 * we don't send all files at once
2062 * and at the next we should *not* start from the beginning,
2063 * so we have to cache the result
2064 *
2065 * --metze
2066 */
2067
2068 /* this works for now... */
2069 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2070 return;
2071 }
2072 default:
2073 if (!logged_ioctl_message) {
2074 logged_ioctl_message = true; /* Only print this once... */
2075 DEBUG(0,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n",
2076 function));
2077 }
2078 }
2079
2080 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2081 }
2082
2083
2084 #ifdef HAVE_SYS_QUOTAS
2085 /****************************************************************************
2086 Reply to get user quota
2087 ****************************************************************************/
2088
2089 static void call_nt_transact_get_user_quota(connection_struct *conn,
2090 struct smb_request *req,
2091 uint16 **ppsetup,
2092 uint32 setup_count,
2093 char **ppparams,
2094 uint32 parameter_count,
2095 char **ppdata,
2096 uint32 data_count,
2097 uint32 max_data_count)
2098 {
2099 NTSTATUS nt_status = NT_STATUS_OK;
2100 char *params = *ppparams;
2101 char *pdata = *ppdata;
2102 char *entry;
2103 int data_len=0,param_len=0;
2104 int qt_len=0;
2105 int entry_len = 0;
2106 files_struct *fsp = NULL;
2107 uint16 level = 0;
2108 size_t sid_len;
2109 DOM_SID sid;
2110 bool start_enum = True;
2111 SMB_NTQUOTA_STRUCT qt;
2112 SMB_NTQUOTA_LIST *tmp_list;
2113 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2114
2115 ZERO_STRUCT(qt);
2116
2117 /* access check */
2118 if (conn->server_info->utok.uid != 0) {
2119 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2120 "[%s]\n", lp_servicename(SNUM(conn)),
2121 conn->server_info->unix_name));
2122 reply_doserror(req, ERRDOS, ERRnoaccess);
2123 return;
2124 }
2125
2126 /*
2127 * Ensure minimum number of parameters sent.
2128 */
2129
2130 if (parameter_count < 4) {
2131 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2132 reply_doserror(req, ERRDOS, ERRinvalidparam);
2133 return;
2134 }
2135
2136 /* maybe we can check the quota_fnum */
2137 fsp = file_fsp(req, SVAL(params,0));
2138 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2139 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2140 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2141 return;
2142 }
2143
2144 /* the NULL pointer checking for fsp->fake_file_handle->pd
2145 * is done by CHECK_NTQUOTA_HANDLE_OK()
2146 */
2147 qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2148
2149 level = SVAL(params,2);
2150
2151 /* unknown 12 bytes leading in params */
2152
2153 switch (level) {
2154 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2155 /* seems that we should continue with the enum here --metze */
2156
2157 if (qt_handle->quota_list!=NULL &&
2158 qt_handle->tmp_list==NULL) {
2159
2160 /* free the list */
2161 free_ntquota_list(&(qt_handle->quota_list));
2162
2163 /* Realloc the size of parameters and data we will return */
2164 param_len = 4;
2165 params = nttrans_realloc(ppparams, param_len);
2166 if(params == NULL) {
2167 reply_doserror(req, ERRDOS, ERRnomem);
2168 return;
2169 }
2170
2171 data_len = 0;
2172 SIVAL(params,0,data_len);
2173
2174 break;
2175 }
2176
2177 start_enum = False;
2178
2179 case TRANSACT_GET_USER_QUOTA_LIST_START:
2180
2181 if (qt_handle->quota_list==NULL &&
2182 qt_handle->tmp_list==NULL) {
2183 start_enum = True;
2184 }
2185
2186 if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2187 reply_doserror(req, ERRSRV, ERRerror);
2188 return;
2189 }
2190
2191 /* Realloc the size of parameters and data we will return */
2192 param_len = 4;
2193 params = nttrans_realloc(ppparams, param_len);
2194 if(params == NULL) {
2195 reply_doserror(req, ERRDOS, ERRnomem);
2196 return;
2197 }
2198
2199 /* we should not trust the value in max_data_count*/
2200 max_data_count = MIN(max_data_count,2048);
2201
2202 pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2203 if(pdata == NULL) {
2204 reply_doserror(req, ERRDOS, ERRnomem);
2205 return;
2206 }
2207
2208 entry = pdata;
2209
2210 /* set params Size of returned Quota Data 4 bytes*/
2211 /* but set it later when we know it */
2212
2213 /* for each entry push the data */
2214
2215 if (start_enum) {
2216 qt_handle->tmp_list = qt_handle->quota_list;
2217 }
2218
2219 tmp_list = qt_handle->tmp_list;
2220
2221 for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2222 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2223
2224 sid_len = ndr_size_dom_sid(
2225 &tmp_list->quotas->sid, NULL, 0);
2226 entry_len = 40 + sid_len;
2227
2228 /* nextoffset entry 4 bytes */
2229 SIVAL(entry,0,entry_len);
2230
2231 /* then the len of the SID 4 bytes */
2232 SIVAL(entry,4,sid_len);
2233
2234 /* unknown data 8 bytes uint64_t */
2235 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2236
2237 /* the used disk space 8 bytes uint64_t */
2238 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2239
2240 /* the soft quotas 8 bytes uint64_t */
2241 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2242
2243 /* the hard quotas 8 bytes uint64_t */
2244 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2245
2246 /* and now the SID */
2247 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2248 }
2249
2250 qt_handle->tmp_list = tmp_list;
2251
2252 /* overwrite the offset of the last entry */
2253 SIVAL(entry-entry_len,0,0);
2254
2255 data_len = 4+qt_len;
2256 /* overwrite the params quota_data_len */
2257 SIVAL(params,0,data_len);
2258
2259 break;
2260
2261 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2262
2263 /* unknown 4 bytes IVAL(pdata,0) */
2264
2265 if (data_count < 8) {
2266 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2267 reply_doserror(req, ERRDOS, ERRunknownlevel);
2268 return;
2269 }
2270
2271 sid_len = IVAL(pdata,4);
2272 /* Ensure this is less than 1mb. */
2273 if (sid_len > (1024*1024)) {
2274 reply_doserror(req, ERRDOS, ERRnomem);
2275 return;
2276 }
2277
2278 if (data_count < 8+sid_len) {
2279 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2280 reply_doserror(req, ERRDOS, ERRunknownlevel);
2281 return;
2282 }
2283
2284 data_len = 4+40+sid_len;
2285
2286 if (max_data_count < data_len) {
2287 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2288 max_data_count, data_len));
2289 param_len = 4;
2290 SIVAL(params,0,data_len);
2291 data_len = 0;
2292 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2293 break;
2294 }
2295
2296 sid_parse(pdata+8,sid_len,&sid);
2297
2298 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2299 ZERO_STRUCT(qt);
2300 /*
2301 * we have to return zero's in all fields
2302 * instead of returning an error here
2303 * --metze
2304 */
2305 }
2306
2307 /* Realloc the size of parameters and data we will return */
2308 param_len = 4;
2309 params = nttrans_realloc(ppparams, param_len);
2310 if(params == NULL) {
2311 reply_doserror(req, ERRDOS, ERRnomem);
2312 return;
2313 }
2314
2315 pdata = nttrans_realloc(ppdata, data_len);
2316 if(pdata == NULL) {
2317 reply_doserror(req, ERRDOS, ERRnomem);
2318 return;
2319 }
2320
2321 entry = pdata;
2322
2323 /* set params Size of returned Quota Data 4 bytes*/
2324 SIVAL(params,0,data_len);
2325
2326 /* nextoffset entry 4 bytes */
2327 SIVAL(entry,0,0);
2328
2329 /* then the len of the SID 4 bytes */
2330 SIVAL(entry,4,sid_len);
2331
2332 /* unknown data 8 bytes uint64_t */
2333 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2334
2335 /* the used disk space 8 bytes uint64_t */
2336 SBIG_UINT(entry,16,qt.usedspace);
2337
2338 /* the soft quotas 8 bytes uint64_t */
2339 SBIG_UINT(entry,24,qt.softlim);
2340
2341 /* the hard quotas 8 bytes uint64_t */
2342 SBIG_UINT(entry,32,qt.hardlim);
2343
2344 /* and now the SID */
2345 sid_linearize(entry+40, sid_len, &sid);
2346
2347 break;
2348
2349 default:
2350 DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2351 reply_doserror(req, ERRSRV, ERRerror);
2352 return;
2353 break;
2354 }
2355
2356 send_nt_replies(conn, req, nt_status, params, param_len,
2357 pdata, data_len);
2358 }
2359
2360 /****************************************************************************
2361 Reply to set user quota
2362 ****************************************************************************/
2363
2364 static void call_nt_transact_set_user_quota(connection_struct *conn,
2365 struct smb_request *req,
2366 uint16 **ppsetup,
2367 uint32 setup_count,
2368 char **ppparams,
2369 uint32 parameter_count,
2370 char **ppdata,
2371 uint32 data_count,
2372 uint32 max_data_count)
2373 {
2374 char *params = *ppparams;
2375 char *pdata = *ppdata;
2376 int data_len=0,param_len=0;
2377 SMB_NTQUOTA_STRUCT qt;
2378 size_t sid_len;
2379 DOM_SID sid;
2380 files_struct *fsp = NULL;
2381
2382 ZERO_STRUCT(qt);
2383
2384 /* access check */
2385 if (conn->server_info->utok.uid != 0) {
2386 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2387 "[%s]\n", lp_servicename(SNUM(conn)),
2388 conn->server_info->unix_name));
2389 reply_doserror(req, ERRDOS, ERRnoaccess);
2390 return;
2391 }
2392
2393 /*
2394 * Ensure minimum number of parameters sent.
2395 */
2396
2397 if (parameter_count < 2) {
2398 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2399 reply_doserror(req, ERRDOS, ERRinvalidparam);
2400 return;
2401 }
2402
2403 /* maybe we can check the quota_fnum */
2404 fsp = file_fsp(req, SVAL(params,0));
2405 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2406 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2407 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2408 return;
2409 }
2410
2411 if (data_count < 40) {
2412 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2413 reply_doserror(req, ERRDOS, ERRunknownlevel);
2414 return;
2415 }
2416
2417 /* offset to next quota record.
2418 * 4 bytes IVAL(pdata,0)
2419 * unused here...
2420 */
2421
2422 /* sid len */
2423 sid_len = IVAL(pdata,4);
2424
2425 if (data_count < 40+sid_len) {
2426 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2427 reply_doserror(req, ERRDOS, ERRunknownlevel);
2428 return;
2429 }
2430
2431 /* unknown 8 bytes in pdata
2432 * maybe its the change time in NTTIME
2433 */
2434
2435 /* the used space 8 bytes (uint64_t)*/
2436 qt.usedspace = (uint64_t)IVAL(pdata,16);
2437 #ifdef LARGE_SMB_OFF_T
2438 qt.usedspace |= (((uint64_t)IVAL(pdata,20)) << 32);
2439 #else /* LARGE_SMB_OFF_T */
2440 if ((IVAL(pdata,20) != 0)&&
2441 ((qt.usedspace != 0xFFFFFFFF)||
2442 (IVAL(pdata,20)!=0xFFFFFFFF))) {
2443 /* more than 32 bits? */
2444 reply_doserror(req, ERRDOS, ERRunknownlevel);
2445 return;
2446 }
2447 #endif /* LARGE_SMB_OFF_T */
2448
2449 /* the soft quotas 8 bytes (uint64_t)*/
2450 qt.softlim = (uint64_t)IVAL(pdata,24);
2451 #ifdef LARGE_SMB_OFF_T
2452 qt.softlim |= (((uint64_t)IVAL(pdata,28)) << 32);
2453 #else /* LARGE_SMB_OFF_T */
2454 if ((IVAL(pdata,28) != 0)&&
2455 ((qt.softlim != 0xFFFFFFFF)||
2456 (IVAL(pdata,28)!=0xFFFFFFFF))) {
2457 /* more than 32 bits? */
2458 reply_doserror(req, ERRDOS, ERRunknownlevel);
2459 return;
2460 }
2461 #endif /* LARGE_SMB_OFF_T */
2462
2463 /* the hard quotas 8 bytes (uint64_t)*/
2464 qt.hardlim = (uint64_t)IVAL(pdata,32);
2465 #ifdef LARGE_SMB_OFF_T
2466 qt.hardlim |= (((uint64_t)IVAL(pdata,36)) << 32);
2467 #else /* LARGE_SMB_OFF_T */
2468 if ((IVAL(pdata,36) != 0)&&
2469 ((qt.hardlim != 0xFFFFFFFF)||
2470 (IVAL(pdata,36)!=0xFFFFFFFF))) {
2471 /* more than 32 bits? */
2472 reply_doserror(req, ERRDOS, ERRunknownlevel);
2473 return;
2474 }
2475 #endif /* LARGE_SMB_OFF_T */
2476
2477 sid_parse(pdata+40,sid_len,&sid);
2478 DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2479
2480 /* 44 unknown bytes left... */
2481
2482 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2483 reply_doserror(req, ERRSRV, ERRerror);
2484 return;
2485 }
2486
2487 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2488 pdata, data_len);
2489 }
2490 #endif /* HAVE_SYS_QUOTAS */
2491
2492 static void handle_nttrans(connection_struct *conn,
2493 struct trans_state *state,
2494 struct smb_request *req)
2495 {
2496 if (Protocol >= PROTOCOL_NT1) {
2497 req->flags2 |= 0x40; /* IS_LONG_NAME */
2498 SSVAL(req->inbuf,smb_flg2,req->flags2);
2499 }
2500
2501
2502 SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2503
2504 /* Now we must call the relevant NT_TRANS function */
2505 switch(state->call) {
2506 case NT_TRANSACT_CREATE:
2507 {
2508 START_PROFILE(NT_transact_create);
2509 call_nt_transact_create(
2510 conn, req,
2511 &state->setup, state->setup_count,
2512 &state->param, state->total_param,
2513 &state->data, state->total_data,
2514 state->max_data_return);
2515 END_PROFILE(NT_transact_create);
2516 break;
2517 }
2518
2519 case NT_TRANSACT_IOCTL:
2520 {
2521 START_PROFILE(NT_transact_ioctl);
2522 call_nt_transact_ioctl(
2523 conn, req,
2524 &state->setup, state->setup_count,
2525 &state->param, state->total_param,
2526 &state->data, state->total_data,
2527 state->max_data_return);
2528 END_PROFILE(NT_transact_ioctl);
2529 break;
2530 }
2531
2532 case NT_TRANSACT_SET_SECURITY_DESC:
2533 {
2534 START_PROFILE(NT_transact_set_security_desc);
2535 call_nt_transact_set_security_desc(
2536 conn, req,
2537 &state->setup, state->setup_count,
2538 &state->param, state->total_param,
2539 &state->data, state->total_data,
2540 state->max_data_return);
2541 END_PROFILE(NT_transact_set_security_desc);
2542 break;
2543 }
2544
2545 case NT_TRANSACT_NOTIFY_CHANGE:
2546 {
2547 START_PROFILE(NT_transact_notify_change);
2548 call_nt_transact_notify_change(
2549 conn, req,
2550 &state->setup, state->setup_count,
2551 &state->param, state->total_param,
2552 &state->data, state->total_data,
2553 state->max_data_return,
2554 state->max_param_return);
2555 END_PROFILE(NT_transact_notify_change);
2556 break;
2557 }
2558
2559 case NT_TRANSACT_RENAME:
2560 {
2561 START_PROFILE(NT_transact_rename);
2562 call_nt_transact_rename(
2563 conn, req,
2564 &state->setup, state->setup_count,
2565 &state->param, state->total_param,
2566 &state->data, state->total_data,
2567 state->max_data_return);
2568 END_PROFILE(NT_transact_rename);
2569 break;
2570 }
2571
2572 case NT_TRANSACT_QUERY_SECURITY_DESC:
2573 {
2574 START_PROFILE(NT_transact_query_security_desc);
2575 call_nt_transact_query_security_desc(
2576 conn, req,
2577 &state->setup, state->setup_count,
2578 &state->param, state->total_param,
2579 &state->data, state->total_data,
2580 state->max_data_return);
2581 END_PROFILE(NT_transact_query_security_desc);
2582 break;
2583 }
2584
2585 #ifdef HAVE_SYS_QUOTAS
2586 case NT_TRANSACT_GET_USER_QUOTA:
2587 {
2588 START_PROFILE(NT_transact_get_user_quota);
2589 call_nt_transact_get_user_quota(
2590 conn, req,
2591 &state->setup, state->setup_count,
2592 &state->param, state->total_param,
2593 &state->data, state->total_data,
2594 state->max_data_return);
2595 END_PROFILE(NT_transact_get_user_quota);
2596 break;
2597 }
2598
2599 case NT_TRANSACT_SET_USER_QUOTA:
2600 {
2601 START_PROFILE(NT_transact_set_user_quota);
2602 call_nt_transact_set_user_quota(
2603 conn, req,
2604 &state->setup, state->setup_count,
2605 &state->param, state->total_param,
2606 &state->data, state->total_data,
2607 state->max_data_return);
2608 END_PROFILE(NT_transact_set_user_quota);
2609 break;
2610 }
2611 #endif /* HAVE_SYS_QUOTAS */
2612
2613 default:
2614 /* Error in request */
2615 DEBUG(0,("handle_nttrans: Unknown request %d in "
2616 "nttrans call\n", state->call));
2617 reply_doserror(req, ERRSRV, ERRerror);
2618 return;
2619 }
2620 return;
2621 }
2622
2623 /****************************************************************************
2624 Reply to a SMBNTtrans.
2625 ****************************************************************************/
2626
2627 void reply_nttrans(struct smb_request *req)
2628 {
2629 connection_struct *conn = req->conn;
2630 uint32_t pscnt;
2631 uint32_t psoff;
2632 uint32_t dscnt;
2633 uint32_t dsoff;
2634 uint16 function_code;
2635 NTSTATUS result;
2636 struct trans_state *state;
2637
2638 START_PROFILE(SMBnttrans);
2639
2640 if (req->wct < 19) {
2641 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2642 END_PROFILE(SMBnttrans);
2643 return;
2644 }
2645
2646 pscnt = IVAL(req->vwv+9, 1);
2647 psoff = IVAL(req->vwv+11, 1);
2648 dscnt = IVAL(req->vwv+13, 1);
2649 dsoff = IVAL(req->vwv+15, 1);
2650 function_code = SVAL(req->vwv+18, 0);
2651
2652 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2653 reply_doserror(req, ERRSRV, ERRaccess);
2654 END_PROFILE(SMBnttrans);
2655 return;
2656 }
2657
2658 result = allow_new_trans(conn->pending_trans, req->mid);
2659 if (!NT_STATUS_IS_OK(result)) {
2660 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2661 reply_nterror(req, result);
2662 END_PROFILE(SMBnttrans);
2663 return;
2664 }
2665
2666 if ((state = TALLOC_P(conn, struct trans_state)) == NULL) {
2667 reply_doserror(req, ERRSRV, ERRaccess);
2668 END_PROFILE(SMBnttrans);
2669 return;
2670 }
2671
2672 state->cmd = SMBnttrans;
2673
2674 state->mid = req->mid;
2675 state->vuid = req->vuid;
2676 state->total_data = IVAL(req->vwv+3, 1);
2677 state->data = NULL;
2678 state->total_param = IVAL(req->vwv+1, 1);
2679 state->param = NULL;
2680 state->max_data_return = IVAL(req->vwv+7, 1);
2681 state->max_param_return = IVAL(req->vwv+5, 1);
2682
2683 /* setup count is in *words* */
2684 state->setup_count = 2*CVAL(req->vwv+17, 1);
2685 state->setup = NULL;
2686 state->call = function_code;
2687
2688 DEBUG(10, ("num_setup=%u, "
2689 "param_total=%u, this_param=%u, max_param=%u, "
2690 "data_total=%u, this_data=%u, max_data=%u, "
2691 "param_offset=%u, data_offset=%u\n",
2692 (unsigned)state->setup_count,
2693 (unsigned)state->total_param, (unsigned)pscnt,
2694 (unsigned)state->max_param_return,
2695 (unsigned)state->total_data, (unsigned)dscnt,
2696 (unsigned)state->max_data_return,
2697 (unsigned)psoff, (unsigned)dsoff));
2698
2699 /*
2700 * All nttrans messages we handle have smb_wct == 19 +
2701 * state->setup_count. Ensure this is so as a sanity check.
2702 */
2703
2704 if(req->wct != 19 + (state->setup_count/2)) {
2705 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2706 req->wct, 19 + (state->setup_count/2)));
2707 goto bad_param;
2708 }
2709
2710 /* Don't allow more than 128mb for each value. */
2711 if ((state->total_data > (1024*1024*128)) ||
2712 (state->total_param > (1024*1024*128))) {
2713 reply_doserror(req, ERRDOS, ERRnomem);
2714 END_PROFILE(SMBnttrans);
2715 return;
2716 }
2717
2718 if ((dscnt > state->total_data) || (pscnt > state->total_param))
2719 goto bad_param;
2720
2721 if (state->total_data) {
2722
2723 if (trans_oob(state->total_data, 0, dscnt)
2724 || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
2725 goto bad_param;
2726 }
2727
2728 /* Can't use talloc here, the core routines do realloc on the
2729 * params and data. */
2730 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2731 DEBUG(0,("reply_nttrans: data malloc fail for %u "
2732 "bytes !\n", (unsigned int)state->total_data));
2733 TALLOC_FREE(state);
2734 reply_doserror(req, ERRDOS, ERRnomem);
2735 END_PROFILE(SMBnttrans);
2736 return;
2737 }
2738
2739 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2740 }
2741
2742 if (state->total_param) {
2743
2744 if (trans_oob(state->total_param, 0, pscnt)
2745 || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
2746 goto bad_param;
2747 }
2748
2749 /* Can't use talloc here, the core routines do realloc on the
2750 * params and data. */
2751 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2752 DEBUG(0,("reply_nttrans: param malloc fail for %u "
2753 "bytes !\n", (unsigned int)state->total_param));
2754 SAFE_FREE(state->data);
2755 TALLOC_FREE(state);
2756 reply_doserror(req, ERRDOS, ERRnomem);
2757 END_PROFILE(SMBnttrans);
2758 return;
2759 }
2760
2761 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2762 }
2763
2764 state->received_data = dscnt;
2765 state->received_param = pscnt;
2766
2767 if(state->setup_count > 0) {
2768 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2769 state->setup_count));
2770
2771 /*
2772 * No overflow possible here, state->setup_count is an
2773 * unsigned int, being filled by a single byte from
2774 * CVAL(req->vwv+13, 0) above. The cast in the comparison
2775 * below is not necessary, it's here to clarify things. The
2776 * validity of req->vwv and req->wct has been checked in
2777 * init_smb_request already.
2778 */
2779 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
2780 goto bad_param;
2781 }
2782
2783 state->setup = (uint16 *)TALLOC(state, state->setup_count);
2784 if (state->setup == NULL) {
2785 DEBUG(0,("reply_nttrans : Out of memory\n"));
2786 SAFE_FREE(state->data);
2787 SAFE_FREE(state->param);
2788 TALLOC_FREE(state);
2789 reply_doserror(req, ERRDOS, ERRnomem);
2790 END_PROFILE(SMBnttrans);
2791 return;
2792 }
2793
2794 memcpy(state->setup, req->vwv+19, state->setup_count);
2795 dump_data(10, (uint8 *)state->setup, state->setup_count);
2796 }
2797
2798 if ((state->received_data == state->total_data) &&
2799 (state->received_param == state->total_param)) {
2800 handle_nttrans(conn, state, req);
2801 SAFE_FREE(state->param);
2802 SAFE_FREE(state->data);
2803 TALLOC_FREE(state);
2804 END_PROFILE(SMBnttrans);
2805 return;
2806 }
2807
2808 DLIST_ADD(conn->pending_trans, state);
2809
2810 /* We need to send an interim response then receive the rest
2811 of the parameter/data bytes */
2812 reply_outbuf(req, 0, 0);
2813 show_msg((char *)req->outbuf);
2814 END_PROFILE(SMBnttrans);
2815 return;
2816
2817 bad_param:
2818
2819 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2820 SAFE_FREE(state->data);
2821 SAFE_FREE(state->param);
2822 TALLOC_FREE(state);
2823 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2824 END_PROFILE(SMBnttrans);
2825 return;
2826 }
2827
2828 /****************************************************************************
2829 Reply to a SMBnttranss
2830 ****************************************************************************/
2831
2832 void reply_nttranss(struct smb_request *req)
2833 {
2834 connection_struct *conn = req->conn;
2835 uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
2836 struct trans_state *state;
2837
2838 START_PROFILE(SMBnttranss);
2839
2840 show_msg((char *)req->inbuf);
2841
2842 if (req->wct < 18) {
2843 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2844 END_PROFILE(SMBnttranss);
2845 return;
2846 }
2847
2848 for (state = conn->pending_trans; state != NULL;
2849 state = state->next) {
2850 if (state->mid == req->mid) {
2851 break;
2852 }
2853 }
2854
2855 if ((state == NULL) || (state->cmd != SMBnttrans)) {
2856 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2857 END_PROFILE(SMBnttranss);
2858 return;
2859 }
2860
2861 /* Revise state->total_param and state->total_data in case they have
2862 changed downwards */
2863 if (IVAL(req->vwv+1, 1) < state->total_param) {
2864 state->total_param = IVAL(req->vwv+1, 1);
2865 }
2866 if (IVAL(req->vwv+3, 1) < state->total_data) {
2867 state->total_data = IVAL(req->vwv+3, 1);
2868 }
2869
2870 pcnt = IVAL(req->vwv+5, 1);
2871 poff = IVAL(req->vwv+7, 1);
2872 pdisp = IVAL(req->vwv+9, 1);
2873
2874 dcnt = IVAL(req->vwv+11, 1);
2875 doff = IVAL(req->vwv+13, 1);
2876 ddisp = IVAL(req->vwv+15, 1);
2877
2878 state->received_param += pcnt;
2879 state->received_data += dcnt;
2880
2881 if ((state->received_data > state->total_data) ||
2882 (state->received_param > state->total_param))
2883 goto bad_param;
2884
2885 if (pcnt) {
2886 if (trans_oob(state->total_param, pdisp, pcnt)
2887 || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
2888 goto bad_param;
2889 }
2890 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
2891 }
2892
2893 if (dcnt) {
2894 if (trans_oob(state->total_data, ddisp, dcnt)
2895 || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
2896 goto bad_param;
2897 }
2898 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
2899 }
2900
2901 if ((state->received_param < state->total_param) ||
2902 (state->received_data < state->total_data)) {
2903 END_PROFILE(SMBnttranss);
2904 return;
2905 }
2906
2907 handle_nttrans(conn, state, req);
2908
2909 DLIST_REMOVE(conn->pending_trans, state);
2910 SAFE_FREE(state->data);
2911 SAFE_FREE(state->param);
2912 TALLOC_FREE(state);
2913 END_PROFILE(SMBnttranss);
2914 return;
2915
2916 bad_param:
2917
2918 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
2919 DLIST_REMOVE(conn->pending_trans, state);
2920 SAFE_FREE(state->data);
2921 SAFE_FREE(state->param);
2922 TALLOC_FREE(state);
2923 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2924 END_PROFILE(SMBnttranss);
2925 return;
2926 }
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