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Fix the build of nfs4_acls.c
[Samba.git] / source3 / smbd / nttrans.c
blobd6be35d29bc9cf04109772e0e59f6caa926b807c
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 true, req->seqnum+1,
234 IS_CONN_ENCRYPTED(conn),
235 &req->pcd)) {
236 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
237 }
238
239 TALLOC_FREE(req->outbuf);
240
241 pp += params_sent_thistime;
242 pd += data_sent_thistime;
243
244 params_to_send -= params_sent_thistime;
245 data_to_send -= data_sent_thistime;
246
247 /*
248 * Sanity check
249 */
250
251 if(params_to_send < 0 || data_to_send < 0) {
252 DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
253 params_to_send, data_to_send));
254 exit_server_cleanly("send_nt_replies: internal error");
255 }
256 }
257 }
258
259 /****************************************************************************
260 Is it an NTFS stream name ?
261 An NTFS file name is <path>.<extention>:<stream name>:<stream type>
262 $DATA can be used as both a stream name and a stream type. A missing stream
263 name or type implies $DATA.
264
265 Both Windows stream names and POSIX files can contain the ':' character.
266 This function first checks for the existence of a colon in the last component
267 of the given name. If the name contains a colon we differentiate between a
268 stream and POSIX file by checking if the latter exists through a POSIX stat.
269
270 Function assumes we've already chdir() to the "root" directory of fname.
271 ****************************************************************************/
272
273 bool is_ntfs_stream_name(const char *fname)
274 {
275 const char *lastcomp;
276 SMB_STRUCT_STAT sbuf;
277
278 /* If all pathnames are treated as POSIX we ignore streams. */
279 if (lp_posix_pathnames()) {
280 return false;
281 }
282
283 /* Find the last component of the name. */
284 if ((lastcomp = strrchr_m(fname, '/')) != NULL)
285 ++lastcomp;
286 else
287 lastcomp = fname;
288
289 /* If there is no colon in the last component, it's not a stream. */
290 if (strchr_m(lastcomp, ':') == NULL)
291 return false;
292
293 /*
294 * If file already exists on disk, it's not a stream. The stat must
295 * bypass the vfs layer so streams modules don't intefere.
296 */
297 if (sys_stat(fname, &sbuf) == 0) {
298 DEBUG(5, ("is_ntfs_stream_name: file %s contains a ':' but is "
299 "not a stream\n", fname));
300 return false;
301 }
302
303 return true;
304 }
305
306 /****************************************************************************
307 Reply to an NT create and X call on a pipe
308 ****************************************************************************/
309
310 static void nt_open_pipe(char *fname, connection_struct *conn,
311 struct smb_request *req, int *ppnum)
312 {
313 files_struct *fsp;
314 NTSTATUS status;
315
316 DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
317
318 /* Strip \\ off the name. */
319 fname++;
320
321 status = open_np_file(req, fname, &fsp);
322 if (!NT_STATUS_IS_OK(status)) {
323 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
324 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
325 ERRDOS, ERRbadpipe);
326 return;
327 }
328 reply_nterror(req, status);
329 return;
330 }
331
332 *ppnum = fsp->fnum;
333 return;
334 }
335
336 /****************************************************************************
337 Reply to an NT create and X call for pipes.
338 ****************************************************************************/
339
340 static void do_ntcreate_pipe_open(connection_struct *conn,
341 struct smb_request *req)
342 {
343 char *fname = NULL;
344 int pnum = -1;
345 char *p = NULL;
346 uint32 flags = IVAL(req->vwv+3, 1);
347 TALLOC_CTX *ctx = talloc_tos();
348
349 srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
350
351 if (!fname) {
352 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
353 ERRDOS, ERRbadpipe);
354 return;
355 }
356 nt_open_pipe(fname, conn, req, &pnum);
357
358 if (req->outbuf) {
359 /* error reply */
360 return;
361 }
362
363 /*
364 * Deal with pipe return.
365 */
366
367 if (flags & EXTENDED_RESPONSE_REQUIRED) {
368 /* This is very strange. We
369 * return 50 words, but only set
370 * the wcnt to 42 ? It's definately
371 * what happens on the wire....
372 */
373 reply_outbuf(req, 50, 0);
374 SCVAL(req->outbuf,smb_wct,42);
375 } else {
376 reply_outbuf(req, 34, 0);
377 }
378
379 p = (char *)req->outbuf + smb_vwv2;
380 p++;
381 SSVAL(p,0,pnum);
382 p += 2;
383 SIVAL(p,0,FILE_WAS_OPENED);
384 p += 4;
385 p += 32;
386 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
387 p += 20;
388 /* File type. */
389 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
390 /* Device state. */
391 SSVAL(p,2, 0x5FF); /* ? */
392 p += 4;
393
394 if (flags & EXTENDED_RESPONSE_REQUIRED) {
395 p += 25;
396 SIVAL(p,0,FILE_GENERIC_ALL);
397 /*
398 * For pipes W2K3 seems to return
399 * 0x12019B next.
400 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
401 */
402 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
403 }
404
405 DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
406
407 chain_reply(req);
408 }
409
410 /****************************************************************************
411 Reply to an NT create and X call.
412 ****************************************************************************/
413
414 void reply_ntcreate_and_X(struct smb_request *req)
415 {
416 connection_struct *conn = req->conn;
417 char *fname = NULL;
418 uint32 flags;
419 uint32 access_mask;
420 uint32 file_attributes;
421 uint32 share_access;
422 uint32 create_disposition;
423 uint32 create_options;
424 uint16 root_dir_fid;
425 uint64_t allocation_size;
426 /* Breakout the oplock request bits so we can set the
427 reply bits separately. */
428 uint32 fattr=0;
429 SMB_OFF_T file_len = 0;
430 SMB_STRUCT_STAT sbuf;
431 int info = 0;
432 files_struct *fsp = NULL;
433 char *p = NULL;
434 struct timespec c_timespec;
435 struct timespec a_timespec;
436 struct timespec m_timespec;
437 NTSTATUS status;
438 int oplock_request;
439 uint8_t oplock_granted = NO_OPLOCK_RETURN;
440 TALLOC_CTX *ctx = talloc_tos();
441
442 START_PROFILE(SMBntcreateX);
443
444 SET_STAT_INVALID(sbuf);
445
446 if (req->wct < 24) {
447 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
448 return;
449 }
450
451 flags = IVAL(req->vwv+3, 1);
452 access_mask = IVAL(req->vwv+7, 1);
453 file_attributes = IVAL(req->vwv+13, 1);
454 share_access = IVAL(req->vwv+15, 1);
455 create_disposition = IVAL(req->vwv+17, 1);
456 create_options = IVAL(req->vwv+19, 1);
457 root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
458
459 allocation_size = (uint64_t)IVAL(req->vwv+9, 1);
460 #ifdef LARGE_SMB_OFF_T
461 allocation_size |= (((uint64_t)IVAL(req->vwv+11, 1)) << 32);
462 #endif
463
464 srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
465 STR_TERMINATE, &status);
466
467 if (!NT_STATUS_IS_OK(status)) {
468 reply_nterror(req, status);
469 END_PROFILE(SMBntcreateX);
470 return;
471 }
472
473 DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
474 "file_attributes = 0x%x, share_access = 0x%x, "
475 "create_disposition = 0x%x create_options = 0x%x "
476 "root_dir_fid = 0x%x, fname = %s\n",
477 (unsigned int)flags,
478 (unsigned int)access_mask,
479 (unsigned int)file_attributes,
480 (unsigned int)share_access,
481 (unsigned int)create_disposition,
482 (unsigned int)create_options,
483 (unsigned int)root_dir_fid,
484 fname));
485
486 /*
487 * we need to remove ignored bits when they come directly from the client
488 * because we reuse some of them for internal stuff
489 */
490 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
491
492 /*
493 * If it's an IPC, use the pipe handler.
494 */
495
496 if (IS_IPC(conn)) {
497 if (lp_nt_pipe_support()) {
498 do_ntcreate_pipe_open(conn, req);
499 END_PROFILE(SMBntcreateX);
500 return;
501 }
502 reply_doserror(req, ERRDOS, ERRnoaccess);
503 END_PROFILE(SMBntcreateX);
504 return;
505 }
506
507 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
508 if (oplock_request) {
509 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
510 ? BATCH_OPLOCK : 0;
511 }
512
513 status = SMB_VFS_CREATE_FILE(
514 conn, /* conn */
515 req, /* req */
516 root_dir_fid, /* root_dir_fid */
517 fname, /* fname */
518 CFF_DOS_PATH, /* create_file_flags */
519 access_mask, /* access_mask */
520 share_access, /* share_access */
521 create_disposition, /* create_disposition*/
522 create_options, /* create_options */
523 file_attributes, /* file_attributes */
524 oplock_request, /* oplock_request */
525 allocation_size, /* allocation_size */
526 NULL, /* sd */
527 NULL, /* ea_list */
528 &fsp, /* result */
529 &info, /* pinfo */
530 &sbuf); /* psbuf */
531
532 if (!NT_STATUS_IS_OK(status)) {
533 if (open_was_deferred(req->mid)) {
534 /* We have re-scheduled this call, no error. */
535 END_PROFILE(SMBntcreateX);
536 return;
537 }
538 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_COLLISION)) {
539 reply_botherror(req, status, ERRDOS, ERRfilexists);
540 }
541 else {
542 reply_nterror(req, status);
543 }
544 END_PROFILE(SMBntcreateX);
545 return;
546 }
547
548 /*
549 * If the caller set the extended oplock request bit
550 * and we granted one (by whatever means) - set the
551 * correct bit for extended oplock reply.
552 */
553
554 if (oplock_request &&
555 (lp_fake_oplocks(SNUM(conn))
556 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
557
558 /*
559 * Exclusive oplock granted
560 */
561
562 if (flags & REQUEST_BATCH_OPLOCK) {
563 oplock_granted = BATCH_OPLOCK_RETURN;
564 } else {
565 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
566 }
567 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
568 oplock_granted = LEVEL_II_OPLOCK_RETURN;
569 } else {
570 oplock_granted = NO_OPLOCK_RETURN;
571 }
572
573 file_len = sbuf.st_ex_size;
574 fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
575 if (fattr == 0) {
576 fattr = FILE_ATTRIBUTE_NORMAL;
577 }
578
579 if (flags & EXTENDED_RESPONSE_REQUIRED) {
580 /* This is very strange. We
581 * return 50 words, but only set
582 * the wcnt to 42 ? It's definately
583 * what happens on the wire....
584 */
585 reply_outbuf(req, 50, 0);
586 SCVAL(req->outbuf,smb_wct,42);
587 } else {
588 reply_outbuf(req, 34, 0);
589 }
590
591 p = (char *)req->outbuf + smb_vwv2;
592
593 SCVAL(p, 0, oplock_granted);
594
595 p++;
596 SSVAL(p,0,fsp->fnum);
597 p += 2;
598 if ((create_disposition == FILE_SUPERSEDE)
599 && (info == FILE_WAS_OVERWRITTEN)) {
600 SIVAL(p,0,FILE_WAS_SUPERSEDED);
601 } else {
602 SIVAL(p,0,info);
603 }
604 p += 4;
605
606 /* Create time. */
607 c_timespec = sbuf.st_ex_btime;
608 a_timespec = sbuf.st_ex_atime;
609 m_timespec = sbuf.st_ex_mtime;
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_ex_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 = sbuf.st_ex_btime;
1074 a_timespec = sbuf.st_ex_atime;
1075 m_timespec = sbuf.st_ex_mtime;
1076
1077 if (lp_dos_filetime_resolution(SNUM(conn))) {
1078 dos_filetime_timespec(&c_timespec);
1079 dos_filetime_timespec(&a_timespec);
1080 dos_filetime_timespec(&m_timespec);
1081 }
1082
1083 put_long_date_timespec(p, c_timespec); /* create time. */
1084 p += 8;
1085 put_long_date_timespec(p, a_timespec); /* access time */
1086 p += 8;
1087 put_long_date_timespec(p, m_timespec); /* write time */
1088 p += 8;
1089 put_long_date_timespec(p, m_timespec); /* change time */
1090 p += 8;
1091 SIVAL(p,0,fattr); /* File Attributes. */
1092 p += 4;
1093 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&sbuf));
1094 p += 8;
1095 SOFF_T(p,0,file_len);
1096 p += 8;
1097 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1098 SSVAL(p,2,0x7);
1099 }
1100 p += 4;
1101 SCVAL(p,0,fsp->is_directory ? 1 : 0);
1102
1103 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1104 uint32 perms = 0;
1105 p += 25;
1106 if (fsp->is_directory
1107 || can_write_to_file(conn, fsp->fsp_name, &sbuf)) {
1108 perms = FILE_GENERIC_ALL;
1109 } else {
1110 perms = FILE_GENERIC_READ|FILE_EXECUTE;
1111 }
1112 SIVAL(p,0,perms);
1113 }
1114
1115 DEBUG(5,("call_nt_transact_create: open name = %s\n", fsp->fsp_name));
1116
1117 /* Send the required number of replies */
1118 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1119
1120 return;
1121 }
1122
1123 /****************************************************************************
1124 Reply to a NT CANCEL request.
1125 conn POINTER CAN BE NULL HERE !
1126 ****************************************************************************/
1127
1128 void reply_ntcancel(struct smb_request *req)
1129 {
1130 /*
1131 * Go through and cancel any pending change notifies.
1132 */
1133
1134 START_PROFILE(SMBntcancel);
1135 srv_cancel_sign_response(smbd_server_conn);
1136 remove_pending_change_notify_requests_by_mid(req->mid);
1137 remove_pending_lock_requests_by_mid(req->mid);
1138
1139 DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", req->mid));
1140
1141 END_PROFILE(SMBntcancel);
1142 return;
1143 }
1144
1145 /****************************************************************************
1146 Copy a file.
1147 ****************************************************************************/
1148
1149 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1150 connection_struct *conn,
1151 struct smb_request *req,
1152 const char *oldname_in,
1153 const char *newname_in,
1154 uint32 attrs)
1155 {
1156 struct smb_filename *smb_fname = NULL;
1157 struct smb_filename *smb_fname_new = NULL;
1158 char *oldname = NULL;
1159 char *newname = NULL;
1160 files_struct *fsp1,*fsp2;
1161 uint32 fattr;
1162 int info;
1163 SMB_OFF_T ret=-1;
1164 NTSTATUS status = NT_STATUS_OK;
1165 char *parent;
1166
1167 if (!CAN_WRITE(conn)) {
1168 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1169 goto out;
1170 }
1171
1172 status = unix_convert(ctx, conn, oldname_in, &smb_fname, 0);
1173 if (!NT_STATUS_IS_OK(status)) {
1174 goto out;
1175 }
1176
1177 status = get_full_smb_filename(ctx, smb_fname, &oldname);
1178 if (!NT_STATUS_IS_OK(status)) {
1179 goto out;
1180 }
1181
1182 status = check_name(conn, oldname);
1183 if (!NT_STATUS_IS_OK(status)) {
1184 goto out;
1185 }
1186
1187 /* Source must already exist. */
1188 if (!VALID_STAT(smb_fname->st)) {
1189 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1190 goto out;
1191 }
1192 /* Ensure attributes match. */
1193 fattr = dos_mode(conn, oldname, &smb_fname->st);
1194 if ((fattr & ~attrs) & (aHIDDEN | aSYSTEM)) {
1195 status = NT_STATUS_NO_SUCH_FILE;
1196 goto out;
1197 }
1198
1199 status = unix_convert(ctx, conn, newname_in, &smb_fname_new, 0);
1200 if (!NT_STATUS_IS_OK(status)) {
1201 goto out;
1202 }
1203
1204 status = get_full_smb_filename(ctx, smb_fname_new, &newname);
1205 if (!NT_STATUS_IS_OK(status)) {
1206 goto out;
1207 }
1208
1209 status = check_name(conn, newname);
1210 if (!NT_STATUS_IS_OK(status)) {
1211 goto out;
1212 }
1213
1214 /* Disallow if newname already exists. */
1215 if (VALID_STAT(smb_fname_new->st)) {
1216 status = NT_STATUS_OBJECT_NAME_COLLISION;
1217 goto out;
1218 }
1219
1220 /* No links from a directory. */
1221 if (S_ISDIR(smb_fname->st.st_ex_mode)) {
1222 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1223 goto out;
1224 }
1225
1226 /* Ensure this is within the share. */
1227 status = check_reduced_name(conn, oldname);
1228 if (!NT_STATUS_IS_OK(status)) {
1229 goto out;
1230 }
1231
1232 DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1233 oldname, newname));
1234
1235 status = SMB_VFS_CREATE_FILE(
1236 conn, /* conn */
1237 req, /* req */
1238 0, /* root_dir_fid */
1239 oldname, /* fname */
1240 0, /* create_file_flags */
1241 FILE_READ_DATA, /* access_mask */
1242 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1243 FILE_SHARE_DELETE),
1244 FILE_OPEN, /* create_disposition*/
1245 0, /* create_options */
1246 FILE_ATTRIBUTE_NORMAL, /* file_attributes */
1247 NO_OPLOCK, /* oplock_request */
1248 0, /* allocation_size */
1249 NULL, /* sd */
1250 NULL, /* ea_list */
1251 &fsp1, /* result */
1252 &info, /* pinfo */
1253 &smb_fname->st); /* psbuf */
1254
1255 if (!NT_STATUS_IS_OK(status)) {
1256 goto out;
1257 }
1258
1259 status = SMB_VFS_CREATE_FILE(
1260 conn, /* conn */
1261 req, /* req */
1262 0, /* root_dir_fid */
1263 newname, /* fname */
1264 0, /* create_file_flags */
1265 FILE_WRITE_DATA, /* access_mask */
1266 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1267 FILE_SHARE_DELETE),
1268 FILE_CREATE, /* create_disposition*/
1269 0, /* create_options */
1270 fattr, /* file_attributes */
1271 NO_OPLOCK, /* oplock_request */
1272 0, /* allocation_size */
1273 NULL, /* sd */
1274 NULL, /* ea_list */
1275 &fsp2, /* result */
1276 &info, /* pinfo */
1277 &smb_fname_new->st); /* psbuf */
1278
1279 if (!NT_STATUS_IS_OK(status)) {
1280 close_file(NULL, fsp1, ERROR_CLOSE);
1281 goto out;
1282 }
1283
1284 if (smb_fname->st.st_ex_size) {
1285 ret = vfs_transfer_file(fsp1, fsp2, smb_fname->st.st_ex_size);
1286 }
1287
1288 /*
1289 * As we are opening fsp1 read-only we only expect
1290 * an error on close on fsp2 if we are out of space.
1291 * Thus we don't look at the error return from the
1292 * close of fsp1.
1293 */
1294 close_file(NULL, fsp1, NORMAL_CLOSE);
1295
1296 /* Ensure the modtime is set correctly on the destination file. */
1297 set_close_write_time(fsp2, smb_fname->st.st_ex_mtime);
1298
1299 status = close_file(NULL, fsp2, NORMAL_CLOSE);
1300
1301 /* Grrr. We have to do this as open_file_ntcreate adds aARCH when it
1302 creates the file. This isn't the correct thing to do in the copy
1303 case. JRA */
1304 if (!parent_dirname(talloc_tos(), newname, &parent, NULL)) {
1305 status = NT_STATUS_NO_MEMORY;
1306 goto out;
1307 }
1308 file_set_dosmode(conn, newname, fattr, &smb_fname_new->st, parent,
1309 false);
1310 TALLOC_FREE(parent);
1311
1312 if (ret < (SMB_OFF_T)smb_fname->st.st_ex_size) {
1313 status = NT_STATUS_DISK_FULL;
1314 goto out;
1315 }
1316 out:
1317 TALLOC_FREE(smb_fname);
1318 TALLOC_FREE(smb_fname_new);
1319 if (!NT_STATUS_IS_OK(status)) {
1320 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1321 nt_errstr(status), oldname, newname));
1322 }
1323 return status;
1324 }
1325
1326 /****************************************************************************
1327 Reply to a NT rename request.
1328 ****************************************************************************/
1329
1330 void reply_ntrename(struct smb_request *req)
1331 {
1332 connection_struct *conn = req->conn;
1333 char *oldname = NULL;
1334 char *newname = NULL;
1335 const char *p;
1336 NTSTATUS status;
1337 bool src_has_wcard = False;
1338 bool dest_has_wcard = False;
1339 uint32 attrs;
1340 uint16 rename_type;
1341 TALLOC_CTX *ctx = talloc_tos();
1342
1343 START_PROFILE(SMBntrename);
1344
1345 if (req->wct < 4) {
1346 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1347 END_PROFILE(SMBntrename);
1348 return;
1349 }
1350
1351 attrs = SVAL(req->vwv+0, 0);
1352 rename_type = SVAL(req->vwv+1, 0);
1353
1354 p = (const char *)req->buf + 1;
1355 p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1356 &status, &src_has_wcard);
1357 if (!NT_STATUS_IS_OK(status)) {
1358 reply_nterror(req, status);
1359 END_PROFILE(SMBntrename);
1360 return;
1361 }
1362
1363 if (ms_has_wild(oldname)) {
1364 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1365 END_PROFILE(SMBntrename);
1366 return;
1367 }
1368
1369 p++;
1370 p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1371 &status, &dest_has_wcard);
1372 if (!NT_STATUS_IS_OK(status)) {
1373 reply_nterror(req, status);
1374 END_PROFILE(SMBntrename);
1375 return;
1376 }
1377
1378 status = resolve_dfspath(ctx, conn,
1379 req->flags2 & FLAGS2_DFS_PATHNAMES,
1380 oldname,
1381 &oldname);
1382 if (!NT_STATUS_IS_OK(status)) {
1383 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1384 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1385 ERRSRV, ERRbadpath);
1386 END_PROFILE(SMBntrename);
1387 return;
1388 }
1389 reply_nterror(req, status);
1390 END_PROFILE(SMBntrename);
1391 return;
1392 }
1393
1394 status = resolve_dfspath(ctx, conn,
1395 req->flags2 & FLAGS2_DFS_PATHNAMES,
1396 newname,
1397 &newname);
1398 if (!NT_STATUS_IS_OK(status)) {
1399 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1400 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1401 ERRSRV, ERRbadpath);
1402 END_PROFILE(SMBntrename);
1403 return;
1404 }
1405 reply_nterror(req, status);
1406 END_PROFILE(SMBntrename);
1407 return;
1408 }
1409
1410 /* The new name must begin with a ':' if the old name is a stream. */
1411 if (is_ntfs_stream_name(oldname) && (newname[0] != ':')) {
1412 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1413 END_PROFILE(SMBntrename);
1414 return;
1415 }
1416
1417 DEBUG(3,("reply_ntrename : %s -> %s\n",oldname,newname));
1418
1419 switch(rename_type) {
1420 case RENAME_FLAG_RENAME:
1421 status = rename_internals(ctx, conn, req, oldname,
1422 newname, attrs, False, src_has_wcard,
1423 dest_has_wcard, DELETE_ACCESS);
1424 break;
1425 case RENAME_FLAG_HARD_LINK:
1426 if (src_has_wcard || dest_has_wcard) {
1427 /* No wildcards. */
1428 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1429 } else {
1430 status = hardlink_internals(ctx,
1431 conn,
1432 oldname,
1433 newname);
1434 }
1435 break;
1436 case RENAME_FLAG_COPY:
1437 if (src_has_wcard || dest_has_wcard) {
1438 /* No wildcards. */
1439 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1440 } else {
1441 status = copy_internals(ctx, conn, req, oldname,
1442 newname, attrs);
1443 }
1444 break;
1445 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1446 status = NT_STATUS_INVALID_PARAMETER;
1447 break;
1448 default:
1449 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1450 break;
1451 }
1452
1453 if (!NT_STATUS_IS_OK(status)) {
1454 if (open_was_deferred(req->mid)) {
1455 /* We have re-scheduled this call. */
1456 END_PROFILE(SMBntrename);
1457 return;
1458 }
1459
1460 reply_nterror(req, status);
1461 END_PROFILE(SMBntrename);
1462 return;
1463 }
1464
1465 reply_outbuf(req, 0, 0);
1466
1467 END_PROFILE(SMBntrename);
1468 return;
1469 }
1470
1471 /****************************************************************************
1472 Reply to a notify change - queue the request and
1473 don't allow a directory to be opened.
1474 ****************************************************************************/
1475
1476 static void call_nt_transact_notify_change(connection_struct *conn,
1477 struct smb_request *req,
1478 uint16 **ppsetup,
1479 uint32 setup_count,
1480 char **ppparams,
1481 uint32 parameter_count,
1482 char **ppdata, uint32 data_count,
1483 uint32 max_data_count,
1484 uint32 max_param_count)
1485 {
1486 uint16 *setup = *ppsetup;
1487 files_struct *fsp;
1488 uint32 filter;
1489 NTSTATUS status;
1490 bool recursive;
1491
1492 if(setup_count < 6) {
1493 reply_doserror(req, ERRDOS, ERRbadfunc);
1494 return;
1495 }
1496
1497 fsp = file_fsp(req, SVAL(setup,4));
1498 filter = IVAL(setup, 0);
1499 recursive = (SVAL(setup, 6) != 0) ? True : False;
1500
1501 DEBUG(3,("call_nt_transact_notify_change\n"));
1502
1503 if(!fsp) {
1504 reply_doserror(req, ERRDOS, ERRbadfid);
1505 return;
1506 }
1507
1508 {
1509 char *filter_string;
1510
1511 if (!(filter_string = notify_filter_string(NULL, filter))) {
1512 reply_nterror(req,NT_STATUS_NO_MEMORY);
1513 return;
1514 }
1515
1516 DEBUG(3,("call_nt_transact_notify_change: notify change "
1517 "called on %s, filter = %s, recursive = %d\n",
1518 fsp->fsp_name, filter_string, recursive));
1519
1520 TALLOC_FREE(filter_string);
1521 }
1522
1523 if((!fsp->is_directory) || (conn != fsp->conn)) {
1524 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1525 return;
1526 }
1527
1528 if (fsp->notify == NULL) {
1529
1530 status = change_notify_create(fsp, filter, recursive);
1531
1532 if (!NT_STATUS_IS_OK(status)) {
1533 DEBUG(10, ("change_notify_create returned %s\n",
1534 nt_errstr(status)));
1535 reply_nterror(req, status);
1536 return;
1537 }
1538 }
1539
1540 if (fsp->notify->num_changes != 0) {
1541
1542 /*
1543 * We've got changes pending, respond immediately
1544 */
1545
1546 /*
1547 * TODO: write a torture test to check the filtering behaviour
1548 * here.
1549 */
1550
1551 change_notify_reply(fsp->conn, req, max_param_count,
1552 fsp->notify);
1553
1554 /*
1555 * change_notify_reply() above has independently sent its
1556 * results
1557 */
1558 return;
1559 }
1560
1561 /*
1562 * No changes pending, queue the request
1563 */
1564
1565 status = change_notify_add_request(req,
1566 max_param_count,
1567 filter,
1568 recursive, fsp);
1569 if (!NT_STATUS_IS_OK(status)) {
1570 reply_nterror(req, status);
1571 }
1572 return;
1573 }
1574
1575 /****************************************************************************
1576 Reply to an NT transact rename command.
1577 ****************************************************************************/
1578
1579 static void call_nt_transact_rename(connection_struct *conn,
1580 struct smb_request *req,
1581 uint16 **ppsetup, uint32 setup_count,
1582 char **ppparams, uint32 parameter_count,
1583 char **ppdata, uint32 data_count,
1584 uint32 max_data_count)
1585 {
1586 char *params = *ppparams;
1587 char *new_name = NULL;
1588 files_struct *fsp = NULL;
1589 bool dest_has_wcard = False;
1590 NTSTATUS status;
1591 TALLOC_CTX *ctx = talloc_tos();
1592
1593 if(parameter_count < 5) {
1594 reply_doserror(req, ERRDOS, ERRbadfunc);
1595 return;
1596 }
1597
1598 fsp = file_fsp(req, SVAL(params, 0));
1599 if (!check_fsp(conn, req, fsp)) {
1600 return;
1601 }
1602 srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1603 parameter_count - 4,
1604 STR_TERMINATE, &status, &dest_has_wcard);
1605 if (!NT_STATUS_IS_OK(status)) {
1606 reply_nterror(req, status);
1607 return;
1608 }
1609
1610 /*
1611 * W2K3 ignores this request as the RAW-RENAME test
1612 * demonstrates, so we do.
1613 */
1614 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1615
1616 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1617 fsp->fsp_name, new_name));
1618
1619 return;
1620 }
1621
1622 /******************************************************************************
1623 Fake up a completely empty SD.
1624 *******************************************************************************/
1625
1626 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
1627 {
1628 size_t sd_size;
1629
1630 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1631 if(!*ppsd) {
1632 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1633 return NT_STATUS_NO_MEMORY;
1634 }
1635
1636 return NT_STATUS_OK;
1637 }
1638
1639 /****************************************************************************
1640 Reply to query a security descriptor.
1641 ****************************************************************************/
1642
1643 static void call_nt_transact_query_security_desc(connection_struct *conn,
1644 struct smb_request *req,
1645 uint16 **ppsetup,
1646 uint32 setup_count,
1647 char **ppparams,
1648 uint32 parameter_count,
1649 char **ppdata,
1650 uint32 data_count,
1651 uint32 max_data_count)
1652 {
1653 char *params = *ppparams;
1654 char *data = *ppdata;
1655 SEC_DESC *psd = NULL;
1656 size_t sd_size;
1657 uint32 security_info_wanted;
1658 files_struct *fsp = NULL;
1659 NTSTATUS status;
1660 DATA_BLOB blob;
1661
1662 if(parameter_count < 8) {
1663 reply_doserror(req, ERRDOS, ERRbadfunc);
1664 return;
1665 }
1666
1667 fsp = file_fsp(req, SVAL(params,0));
1668 if(!fsp) {
1669 reply_doserror(req, ERRDOS, ERRbadfid);
1670 return;
1671 }
1672
1673 security_info_wanted = IVAL(params,4);
1674
1675 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, info_wanted = 0x%x\n", fsp->fsp_name,
1676 (unsigned int)security_info_wanted ));
1677
1678 params = nttrans_realloc(ppparams, 4);
1679 if(params == NULL) {
1680 reply_doserror(req, ERRDOS, ERRnomem);
1681 return;
1682 }
1683
1684 /*
1685 * Get the permissions to return.
1686 */
1687
1688 if (!lp_nt_acl_support(SNUM(conn))) {
1689 status = get_null_nt_acl(talloc_tos(), &psd);
1690 } else {
1691 status = SMB_VFS_FGET_NT_ACL(
1692 fsp, security_info_wanted, &psd);
1693 }
1694 if (!NT_STATUS_IS_OK(status)) {
1695 reply_nterror(req, status);
1696 return;
1697 }
1698
1699 /* If the SACL/DACL is NULL, but was requested, we mark that it is
1700 * present in the reply to match Windows behavior */
1701 if (psd->sacl == NULL &&
1702 security_info_wanted & SACL_SECURITY_INFORMATION)
1703 psd->type |= SEC_DESC_SACL_PRESENT;
1704 if (psd->dacl == NULL &&
1705 security_info_wanted & DACL_SECURITY_INFORMATION)
1706 psd->type |= SEC_DESC_DACL_PRESENT;
1707
1708 sd_size = ndr_size_security_descriptor(psd, NULL, 0);
1709
1710 DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %lu.\n",(unsigned long)sd_size));
1711
1712 if (DEBUGLEVEL >= 10) {
1713 DEBUG(10,("call_nt_transact_query_security_desc for file %s\n", fsp->fsp_name));
1714 NDR_PRINT_DEBUG(security_descriptor, psd);
1715 }
1716
1717 SIVAL(params,0,(uint32)sd_size);
1718
1719 if (max_data_count < sd_size) {
1720 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1721 params, 4, *ppdata, 0);
1722 return;
1723 }
1724
1725 /*
1726 * Allocate the data we will point this at.
1727 */
1728
1729 data = nttrans_realloc(ppdata, sd_size);
1730 if(data == NULL) {
1731 reply_doserror(req, ERRDOS, ERRnomem);
1732 return;
1733 }
1734
1735 status = marshall_sec_desc(talloc_tos(), psd,
1736 &blob.data, &blob.length);
1737
1738 if (!NT_STATUS_IS_OK(status)) {
1739 reply_nterror(req, status);
1740 return;
1741 }
1742
1743 SMB_ASSERT(sd_size == blob.length);
1744 memcpy(data, blob.data, sd_size);
1745
1746 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
1747
1748 return;
1749 }
1750
1751 /****************************************************************************
1752 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
1753 ****************************************************************************/
1754
1755 static void call_nt_transact_set_security_desc(connection_struct *conn,
1756 struct smb_request *req,
1757 uint16 **ppsetup,
1758 uint32 setup_count,
1759 char **ppparams,
1760 uint32 parameter_count,
1761 char **ppdata,
1762 uint32 data_count,
1763 uint32 max_data_count)
1764 {
1765 char *params= *ppparams;
1766 char *data = *ppdata;
1767 files_struct *fsp = NULL;
1768 uint32 security_info_sent = 0;
1769 NTSTATUS status;
1770
1771 if(parameter_count < 8) {
1772 reply_doserror(req, ERRDOS, ERRbadfunc);
1773 return;
1774 }
1775
1776 if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
1777 reply_doserror(req, ERRDOS, ERRbadfid);
1778 return;
1779 }
1780
1781 if(!lp_nt_acl_support(SNUM(conn))) {
1782 goto done;
1783 }
1784
1785 security_info_sent = IVAL(params,4);
1786
1787 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n", fsp->fsp_name,
1788 (unsigned int)security_info_sent ));
1789
1790 if (data_count == 0) {
1791 reply_doserror(req, ERRDOS, ERRnoaccess);
1792 return;
1793 }
1794
1795 status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
1796
1797 if (!NT_STATUS_IS_OK(status)) {
1798 reply_nterror(req, status);
1799 return;
1800 }
1801
1802 done:
1803 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1804 return;
1805 }
1806
1807 /****************************************************************************
1808 Reply to NT IOCTL
1809 ****************************************************************************/
1810
1811 static void call_nt_transact_ioctl(connection_struct *conn,
1812 struct smb_request *req,
1813 uint16 **ppsetup, uint32 setup_count,
1814 char **ppparams, uint32 parameter_count,
1815 char **ppdata, uint32 data_count,
1816 uint32 max_data_count)
1817 {
1818 uint32 function;
1819 uint16 fidnum;
1820 files_struct *fsp;
1821 uint8 isFSctl;
1822 uint8 compfilter;
1823 char *pdata = *ppdata;
1824
1825 if (setup_count != 8) {
1826 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
1827 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1828 return;
1829 }
1830
1831 function = IVAL(*ppsetup, 0);
1832 fidnum = SVAL(*ppsetup, 4);
1833 isFSctl = CVAL(*ppsetup, 6);
1834 compfilter = CVAL(*ppsetup, 7);
1835
1836 DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
1837 function, fidnum, isFSctl, compfilter));
1838
1839 fsp=file_fsp(req, fidnum);
1840 /* this check is done in each implemented function case for now
1841 because I don't want to break anything... --metze
1842 FSP_BELONGS_CONN(fsp,conn);*/
1843
1844 SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
1845
1846 switch (function) {
1847 case FSCTL_SET_SPARSE:
1848 /* pretend this succeeded - tho strictly we should
1849 mark the file sparse (if the local fs supports it)
1850 so we can know if we need to pre-allocate or not */
1851
1852 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum));
1853 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1854 return;
1855
1856 case FSCTL_CREATE_OR_GET_OBJECT_ID:
1857 {
1858 unsigned char objid[16];
1859
1860 /* This should return the object-id on this file.
1861 * I think I'll make this be the inode+dev. JRA.
1862 */
1863
1864 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
1865
1866 if (!fsp_belongs_conn(conn, req, fsp)) {
1867 return;
1868 }
1869
1870 data_count = 64;
1871 pdata = nttrans_realloc(ppdata, data_count);
1872 if (pdata == NULL) {
1873 reply_nterror(req, NT_STATUS_NO_MEMORY);
1874 return;
1875 }
1876
1877 /* For backwards compatibility only store the dev/inode. */
1878 push_file_id_16(pdata, &fsp->file_id);
1879 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
1880 push_file_id_16(pdata+32, &fsp->file_id);
1881 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
1882 pdata, data_count);
1883 return;
1884 }
1885
1886 case FSCTL_GET_REPARSE_POINT:
1887 /* pretend this fail - my winXP does it like this
1888 * --metze
1889 */
1890
1891 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1892 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1893 return;
1894
1895 case FSCTL_SET_REPARSE_POINT:
1896 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
1897 * --metze
1898 */
1899
1900 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1901 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1902 return;
1903
1904 case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
1905 {
1906 /*
1907 * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
1908 * and return their volume names. If max_data_count is 16, then it is just
1909 * asking for the number of volumes and length of the combined names.
1910 *
1911 * pdata is the data allocated by our caller, but that uses
1912 * total_data_count (which is 0 in our case) rather than max_data_count.
1913 * Allocate the correct amount and return the pointer to let
1914 * it be deallocated when we return.
1915 */
1916 SHADOW_COPY_DATA *shadow_data = NULL;
1917 TALLOC_CTX *shadow_mem_ctx = NULL;
1918 bool labels = False;
1919 uint32 labels_data_count = 0;
1920 uint32 i;
1921 char *cur_pdata;
1922
1923 if (!fsp_belongs_conn(conn, req, fsp)) {
1924 return;
1925 }
1926
1927 if (max_data_count < 16) {
1928 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
1929 max_data_count));
1930 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1931 return;
1932 }
1933
1934 if (max_data_count > 16) {
1935 labels = True;
1936 }
1937
1938 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
1939 if (shadow_mem_ctx == NULL) {
1940 DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
1941 reply_nterror(req, NT_STATUS_NO_MEMORY);
1942 return;
1943 }
1944
1945 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
1946 if (shadow_data == NULL) {
1947 DEBUG(0,("TALLOC_ZERO() failed!\n"));
1948 talloc_destroy(shadow_mem_ctx);
1949 reply_nterror(req, NT_STATUS_NO_MEMORY);
1950 return;
1951 }
1952
1953 shadow_data->mem_ctx = shadow_mem_ctx;
1954
1955 /*
1956 * Call the VFS routine to actually do the work.
1957 */
1958 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
1959 talloc_destroy(shadow_data->mem_ctx);
1960 if (errno == ENOSYS) {
1961 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
1962 conn->connectpath));
1963 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1964 return;
1965 } else {
1966 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
1967 conn->connectpath));
1968 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
1969 return;
1970 }
1971 }
1972
1973 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
1974
1975 if (!labels) {
1976 data_count = 16;
1977 } else {
1978 data_count = 12+labels_data_count+4;
1979 }
1980
1981 if (max_data_count<data_count) {
1982 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
1983 max_data_count,data_count));
1984 talloc_destroy(shadow_data->mem_ctx);
1985 reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
1986 return;
1987 }
1988
1989 pdata = nttrans_realloc(ppdata, data_count);
1990 if (pdata == NULL) {
1991 talloc_destroy(shadow_data->mem_ctx);
1992 reply_nterror(req, NT_STATUS_NO_MEMORY);
1993 return;
1994 }
1995
1996 cur_pdata = pdata;
1997
1998 /* num_volumes 4 bytes */
1999 SIVAL(pdata,0,shadow_data->num_volumes);
2000
2001 if (labels) {
2002 /* num_labels 4 bytes */
2003 SIVAL(pdata,4,shadow_data->num_volumes);
2004 }
2005
2006 /* needed_data_count 4 bytes */
2007 SIVAL(pdata,8,labels_data_count);
2008
2009 cur_pdata+=12;
2010
2011 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
2012 shadow_data->num_volumes,fsp->fsp_name));
2013 if (labels && shadow_data->labels) {
2014 for (i=0;i<shadow_data->num_volumes;i++) {
2015 srvstr_push(pdata, req->flags2,
2016 cur_pdata, shadow_data->labels[i],
2017 2*sizeof(SHADOW_COPY_LABEL),
2018 STR_UNICODE|STR_TERMINATE);
2019 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
2020 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
2021 }
2022 }
2023
2024 talloc_destroy(shadow_data->mem_ctx);
2025
2026 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2027 pdata, data_count);
2028
2029 return;
2030 }
2031
2032 case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
2033 {
2034 /* pretend this succeeded -
2035 *
2036 * we have to send back a list with all files owned by this SID
2037 *
2038 * but I have to check that --metze
2039 */
2040 DOM_SID sid;
2041 uid_t uid;
2042 size_t sid_len = MIN(data_count-4,SID_MAX_SIZE);
2043
2044 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
2045
2046 if (!fsp_belongs_conn(conn, req, fsp)) {
2047 return;
2048 }
2049
2050 /* unknown 4 bytes: this is not the length of the sid :-( */
2051 /*unknown = IVAL(pdata,0);*/
2052
2053 sid_parse(pdata+4,sid_len,&sid);
2054 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
2055
2056 if (!sid_to_uid(&sid, &uid)) {
2057 DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
2058 sid_string_dbg(&sid),
2059 (unsigned long)sid_len));
2060 uid = (-1);
2061 }
2062
2063 /* we can take a look at the find source :-)
2064 *
2065 * find ./ -uid $uid -name '*' is what we need here
2066 *
2067 *
2068 * and send 4bytes len and then NULL terminated unicode strings
2069 * for each file
2070 *
2071 * but I don't know how to deal with the paged results
2072 * (maybe we can hang the result anywhere in the fsp struct)
2073 *
2074 * we don't send all files at once
2075 * and at the next we should *not* start from the beginning,
2076 * so we have to cache the result
2077 *
2078 * --metze
2079 */
2080
2081 /* this works for now... */
2082 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2083 return;
2084 }
2085 default:
2086 if (!logged_ioctl_message) {
2087 logged_ioctl_message = true; /* Only print this once... */
2088 DEBUG(0,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n",
2089 function));
2090 }
2091 }
2092
2093 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2094 }
2095
2096
2097 #ifdef HAVE_SYS_QUOTAS
2098 /****************************************************************************
2099 Reply to get user quota
2100 ****************************************************************************/
2101
2102 static void call_nt_transact_get_user_quota(connection_struct *conn,
2103 struct smb_request *req,
2104 uint16 **ppsetup,
2105 uint32 setup_count,
2106 char **ppparams,
2107 uint32 parameter_count,
2108 char **ppdata,
2109 uint32 data_count,
2110 uint32 max_data_count)
2111 {
2112 NTSTATUS nt_status = NT_STATUS_OK;
2113 char *params = *ppparams;
2114 char *pdata = *ppdata;
2115 char *entry;
2116 int data_len=0,param_len=0;
2117 int qt_len=0;
2118 int entry_len = 0;
2119 files_struct *fsp = NULL;
2120 uint16 level = 0;
2121 size_t sid_len;
2122 DOM_SID sid;
2123 bool start_enum = True;
2124 SMB_NTQUOTA_STRUCT qt;
2125 SMB_NTQUOTA_LIST *tmp_list;
2126 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2127
2128 ZERO_STRUCT(qt);
2129
2130 /* access check */
2131 if (conn->server_info->utok.uid != 0) {
2132 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2133 "[%s]\n", lp_servicename(SNUM(conn)),
2134 conn->server_info->unix_name));
2135 reply_doserror(req, ERRDOS, ERRnoaccess);
2136 return;
2137 }
2138
2139 /*
2140 * Ensure minimum number of parameters sent.
2141 */
2142
2143 if (parameter_count < 4) {
2144 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2145 reply_doserror(req, ERRDOS, ERRinvalidparam);
2146 return;
2147 }
2148
2149 /* maybe we can check the quota_fnum */
2150 fsp = file_fsp(req, SVAL(params,0));
2151 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2152 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2153 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2154 return;
2155 }
2156
2157 /* the NULL pointer checking for fsp->fake_file_handle->pd
2158 * is done by CHECK_NTQUOTA_HANDLE_OK()
2159 */
2160 qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2161
2162 level = SVAL(params,2);
2163
2164 /* unknown 12 bytes leading in params */
2165
2166 switch (level) {
2167 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2168 /* seems that we should continue with the enum here --metze */
2169
2170 if (qt_handle->quota_list!=NULL &&
2171 qt_handle->tmp_list==NULL) {
2172
2173 /* free the list */
2174 free_ntquota_list(&(qt_handle->quota_list));
2175
2176 /* Realloc the size of parameters and data we will return */
2177 param_len = 4;
2178 params = nttrans_realloc(ppparams, param_len);
2179 if(params == NULL) {
2180 reply_doserror(req, ERRDOS, ERRnomem);
2181 return;
2182 }
2183
2184 data_len = 0;
2185 SIVAL(params,0,data_len);
2186
2187 break;
2188 }
2189
2190 start_enum = False;
2191
2192 case TRANSACT_GET_USER_QUOTA_LIST_START:
2193
2194 if (qt_handle->quota_list==NULL &&
2195 qt_handle->tmp_list==NULL) {
2196 start_enum = True;
2197 }
2198
2199 if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2200 reply_doserror(req, ERRSRV, ERRerror);
2201 return;
2202 }
2203
2204 /* Realloc the size of parameters and data we will return */
2205 param_len = 4;
2206 params = nttrans_realloc(ppparams, param_len);
2207 if(params == NULL) {
2208 reply_doserror(req, ERRDOS, ERRnomem);
2209 return;
2210 }
2211
2212 /* we should not trust the value in max_data_count*/
2213 max_data_count = MIN(max_data_count,2048);
2214
2215 pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2216 if(pdata == NULL) {
2217 reply_doserror(req, ERRDOS, ERRnomem);
2218 return;
2219 }
2220
2221 entry = pdata;
2222
2223 /* set params Size of returned Quota Data 4 bytes*/
2224 /* but set it later when we know it */
2225
2226 /* for each entry push the data */
2227
2228 if (start_enum) {
2229 qt_handle->tmp_list = qt_handle->quota_list;
2230 }
2231
2232 tmp_list = qt_handle->tmp_list;
2233
2234 for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2235 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2236
2237 sid_len = ndr_size_dom_sid(
2238 &tmp_list->quotas->sid, NULL, 0);
2239 entry_len = 40 + sid_len;
2240
2241 /* nextoffset entry 4 bytes */
2242 SIVAL(entry,0,entry_len);
2243
2244 /* then the len of the SID 4 bytes */
2245 SIVAL(entry,4,sid_len);
2246
2247 /* unknown data 8 bytes uint64_t */
2248 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2249
2250 /* the used disk space 8 bytes uint64_t */
2251 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2252
2253 /* the soft quotas 8 bytes uint64_t */
2254 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2255
2256 /* the hard quotas 8 bytes uint64_t */
2257 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2258
2259 /* and now the SID */
2260 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2261 }
2262
2263 qt_handle->tmp_list = tmp_list;
2264
2265 /* overwrite the offset of the last entry */
2266 SIVAL(entry-entry_len,0,0);
2267
2268 data_len = 4+qt_len;
2269 /* overwrite the params quota_data_len */
2270 SIVAL(params,0,data_len);
2271
2272 break;
2273
2274 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2275
2276 /* unknown 4 bytes IVAL(pdata,0) */
2277
2278 if (data_count < 8) {
2279 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2280 reply_doserror(req, ERRDOS, ERRunknownlevel);
2281 return;
2282 }
2283
2284 sid_len = IVAL(pdata,4);
2285 /* Ensure this is less than 1mb. */
2286 if (sid_len > (1024*1024)) {
2287 reply_doserror(req, ERRDOS, ERRnomem);
2288 return;
2289 }
2290
2291 if (data_count < 8+sid_len) {
2292 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2293 reply_doserror(req, ERRDOS, ERRunknownlevel);
2294 return;
2295 }
2296
2297 data_len = 4+40+sid_len;
2298
2299 if (max_data_count < data_len) {
2300 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2301 max_data_count, data_len));
2302 param_len = 4;
2303 SIVAL(params,0,data_len);
2304 data_len = 0;
2305 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2306 break;
2307 }
2308
2309 sid_parse(pdata+8,sid_len,&sid);
2310
2311 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2312 ZERO_STRUCT(qt);
2313 /*
2314 * we have to return zero's in all fields
2315 * instead of returning an error here
2316 * --metze
2317 */
2318 }
2319
2320 /* Realloc the size of parameters and data we will return */
2321 param_len = 4;
2322 params = nttrans_realloc(ppparams, param_len);
2323 if(params == NULL) {
2324 reply_doserror(req, ERRDOS, ERRnomem);
2325 return;
2326 }
2327
2328 pdata = nttrans_realloc(ppdata, data_len);
2329 if(pdata == NULL) {
2330 reply_doserror(req, ERRDOS, ERRnomem);
2331 return;
2332 }
2333
2334 entry = pdata;
2335
2336 /* set params Size of returned Quota Data 4 bytes*/
2337 SIVAL(params,0,data_len);
2338
2339 /* nextoffset entry 4 bytes */
2340 SIVAL(entry,0,0);
2341
2342 /* then the len of the SID 4 bytes */
2343 SIVAL(entry,4,sid_len);
2344
2345 /* unknown data 8 bytes uint64_t */
2346 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2347
2348 /* the used disk space 8 bytes uint64_t */
2349 SBIG_UINT(entry,16,qt.usedspace);
2350
2351 /* the soft quotas 8 bytes uint64_t */
2352 SBIG_UINT(entry,24,qt.softlim);
2353
2354 /* the hard quotas 8 bytes uint64_t */
2355 SBIG_UINT(entry,32,qt.hardlim);
2356
2357 /* and now the SID */
2358 sid_linearize(entry+40, sid_len, &sid);
2359
2360 break;
2361
2362 default:
2363 DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2364 reply_doserror(req, ERRSRV, ERRerror);
2365 return;
2366 break;
2367 }
2368
2369 send_nt_replies(conn, req, nt_status, params, param_len,
2370 pdata, data_len);
2371 }
2372
2373 /****************************************************************************
2374 Reply to set user quota
2375 ****************************************************************************/
2376
2377 static void call_nt_transact_set_user_quota(connection_struct *conn,
2378 struct smb_request *req,
2379 uint16 **ppsetup,
2380 uint32 setup_count,
2381 char **ppparams,
2382 uint32 parameter_count,
2383 char **ppdata,
2384 uint32 data_count,
2385 uint32 max_data_count)
2386 {
2387 char *params = *ppparams;
2388 char *pdata = *ppdata;
2389 int data_len=0,param_len=0;
2390 SMB_NTQUOTA_STRUCT qt;
2391 size_t sid_len;
2392 DOM_SID sid;
2393 files_struct *fsp = NULL;
2394
2395 ZERO_STRUCT(qt);
2396
2397 /* access check */
2398 if (conn->server_info->utok.uid != 0) {
2399 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2400 "[%s]\n", lp_servicename(SNUM(conn)),
2401 conn->server_info->unix_name));
2402 reply_doserror(req, ERRDOS, ERRnoaccess);
2403 return;
2404 }
2405
2406 /*
2407 * Ensure minimum number of parameters sent.
2408 */
2409
2410 if (parameter_count < 2) {
2411 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2412 reply_doserror(req, ERRDOS, ERRinvalidparam);
2413 return;
2414 }
2415
2416 /* maybe we can check the quota_fnum */
2417 fsp = file_fsp(req, SVAL(params,0));
2418 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2419 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2420 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2421 return;
2422 }
2423
2424 if (data_count < 40) {
2425 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2426 reply_doserror(req, ERRDOS, ERRunknownlevel);
2427 return;
2428 }
2429
2430 /* offset to next quota record.
2431 * 4 bytes IVAL(pdata,0)
2432 * unused here...
2433 */
2434
2435 /* sid len */
2436 sid_len = IVAL(pdata,4);
2437
2438 if (data_count < 40+sid_len) {
2439 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2440 reply_doserror(req, ERRDOS, ERRunknownlevel);
2441 return;
2442 }
2443
2444 /* unknown 8 bytes in pdata
2445 * maybe its the change time in NTTIME
2446 */
2447
2448 /* the used space 8 bytes (uint64_t)*/
2449 qt.usedspace = (uint64_t)IVAL(pdata,16);
2450 #ifdef LARGE_SMB_OFF_T
2451 qt.usedspace |= (((uint64_t)IVAL(pdata,20)) << 32);
2452 #else /* LARGE_SMB_OFF_T */
2453 if ((IVAL(pdata,20) != 0)&&
2454 ((qt.usedspace != 0xFFFFFFFF)||
2455 (IVAL(pdata,20)!=0xFFFFFFFF))) {
2456 /* more than 32 bits? */
2457 reply_doserror(req, ERRDOS, ERRunknownlevel);
2458 return;
2459 }
2460 #endif /* LARGE_SMB_OFF_T */
2461
2462 /* the soft quotas 8 bytes (uint64_t)*/
2463 qt.softlim = (uint64_t)IVAL(pdata,24);
2464 #ifdef LARGE_SMB_OFF_T
2465 qt.softlim |= (((uint64_t)IVAL(pdata,28)) << 32);
2466 #else /* LARGE_SMB_OFF_T */
2467 if ((IVAL(pdata,28) != 0)&&
2468 ((qt.softlim != 0xFFFFFFFF)||
2469 (IVAL(pdata,28)!=0xFFFFFFFF))) {
2470 /* more than 32 bits? */
2471 reply_doserror(req, ERRDOS, ERRunknownlevel);
2472 return;
2473 }
2474 #endif /* LARGE_SMB_OFF_T */
2475
2476 /* the hard quotas 8 bytes (uint64_t)*/
2477 qt.hardlim = (uint64_t)IVAL(pdata,32);
2478 #ifdef LARGE_SMB_OFF_T
2479 qt.hardlim |= (((uint64_t)IVAL(pdata,36)) << 32);
2480 #else /* LARGE_SMB_OFF_T */
2481 if ((IVAL(pdata,36) != 0)&&
2482 ((qt.hardlim != 0xFFFFFFFF)||
2483 (IVAL(pdata,36)!=0xFFFFFFFF))) {
2484 /* more than 32 bits? */
2485 reply_doserror(req, ERRDOS, ERRunknownlevel);
2486 return;
2487 }
2488 #endif /* LARGE_SMB_OFF_T */
2489
2490 sid_parse(pdata+40,sid_len,&sid);
2491 DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2492
2493 /* 44 unknown bytes left... */
2494
2495 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2496 reply_doserror(req, ERRSRV, ERRerror);
2497 return;
2498 }
2499
2500 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2501 pdata, data_len);
2502 }
2503 #endif /* HAVE_SYS_QUOTAS */
2504
2505 static void handle_nttrans(connection_struct *conn,
2506 struct trans_state *state,
2507 struct smb_request *req)
2508 {
2509 if (Protocol >= PROTOCOL_NT1) {
2510 req->flags2 |= 0x40; /* IS_LONG_NAME */
2511 SSVAL(req->inbuf,smb_flg2,req->flags2);
2512 }
2513
2514
2515 SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2516
2517 /* Now we must call the relevant NT_TRANS function */
2518 switch(state->call) {
2519 case NT_TRANSACT_CREATE:
2520 {
2521 START_PROFILE(NT_transact_create);
2522 call_nt_transact_create(
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_create);
2529 break;
2530 }
2531
2532 case NT_TRANSACT_IOCTL:
2533 {
2534 START_PROFILE(NT_transact_ioctl);
2535 call_nt_transact_ioctl(
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_ioctl);
2542 break;
2543 }
2544
2545 case NT_TRANSACT_SET_SECURITY_DESC:
2546 {
2547 START_PROFILE(NT_transact_set_security_desc);
2548 call_nt_transact_set_security_desc(
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 END_PROFILE(NT_transact_set_security_desc);
2555 break;
2556 }
2557
2558 case NT_TRANSACT_NOTIFY_CHANGE:
2559 {
2560 START_PROFILE(NT_transact_notify_change);
2561 call_nt_transact_notify_change(
2562 conn, req,
2563 &state->setup, state->setup_count,
2564 &state->param, state->total_param,
2565 &state->data, state->total_data,
2566 state->max_data_return,
2567 state->max_param_return);
2568 END_PROFILE(NT_transact_notify_change);
2569 break;
2570 }
2571
2572 case NT_TRANSACT_RENAME:
2573 {
2574 START_PROFILE(NT_transact_rename);
2575 call_nt_transact_rename(
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_rename);
2582 break;
2583 }
2584
2585 case NT_TRANSACT_QUERY_SECURITY_DESC:
2586 {
2587 START_PROFILE(NT_transact_query_security_desc);
2588 call_nt_transact_query_security_desc(
2589 conn, req,
2590 &state->setup, state->setup_count,
2591 &state->param, state->total_param,
2592 &state->data, state->total_data,
2593 state->max_data_return);
2594 END_PROFILE(NT_transact_query_security_desc);
2595 break;
2596 }
2597
2598 #ifdef HAVE_SYS_QUOTAS
2599 case NT_TRANSACT_GET_USER_QUOTA:
2600 {
2601 START_PROFILE(NT_transact_get_user_quota);
2602 call_nt_transact_get_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_get_user_quota);
2609 break;
2610 }
2611
2612 case NT_TRANSACT_SET_USER_QUOTA:
2613 {
2614 START_PROFILE(NT_transact_set_user_quota);
2615 call_nt_transact_set_user_quota(
2616 conn, req,
2617 &state->setup, state->setup_count,
2618 &state->param, state->total_param,
2619 &state->data, state->total_data,
2620 state->max_data_return);
2621 END_PROFILE(NT_transact_set_user_quota);
2622 break;
2623 }
2624 #endif /* HAVE_SYS_QUOTAS */
2625
2626 default:
2627 /* Error in request */
2628 DEBUG(0,("handle_nttrans: Unknown request %d in "
2629 "nttrans call\n", state->call));
2630 reply_doserror(req, ERRSRV, ERRerror);
2631 return;
2632 }
2633 return;
2634 }
2635
2636 /****************************************************************************
2637 Reply to a SMBNTtrans.
2638 ****************************************************************************/
2639
2640 void reply_nttrans(struct smb_request *req)
2641 {
2642 connection_struct *conn = req->conn;
2643 uint32_t pscnt;
2644 uint32_t psoff;
2645 uint32_t dscnt;
2646 uint32_t dsoff;
2647 uint16 function_code;
2648 NTSTATUS result;
2649 struct trans_state *state;
2650
2651 START_PROFILE(SMBnttrans);
2652
2653 if (req->wct < 19) {
2654 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2655 END_PROFILE(SMBnttrans);
2656 return;
2657 }
2658
2659 pscnt = IVAL(req->vwv+9, 1);
2660 psoff = IVAL(req->vwv+11, 1);
2661 dscnt = IVAL(req->vwv+13, 1);
2662 dsoff = IVAL(req->vwv+15, 1);
2663 function_code = SVAL(req->vwv+18, 0);
2664
2665 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2666 reply_doserror(req, ERRSRV, ERRaccess);
2667 END_PROFILE(SMBnttrans);
2668 return;
2669 }
2670
2671 result = allow_new_trans(conn->pending_trans, req->mid);
2672 if (!NT_STATUS_IS_OK(result)) {
2673 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2674 reply_nterror(req, result);
2675 END_PROFILE(SMBnttrans);
2676 return;
2677 }
2678
2679 if ((state = TALLOC_P(conn, struct trans_state)) == NULL) {
2680 reply_doserror(req, ERRSRV, ERRaccess);
2681 END_PROFILE(SMBnttrans);
2682 return;
2683 }
2684
2685 state->cmd = SMBnttrans;
2686
2687 state->mid = req->mid;
2688 state->vuid = req->vuid;
2689 state->total_data = IVAL(req->vwv+3, 1);
2690 state->data = NULL;
2691 state->total_param = IVAL(req->vwv+1, 1);
2692 state->param = NULL;
2693 state->max_data_return = IVAL(req->vwv+7, 1);
2694 state->max_param_return = IVAL(req->vwv+5, 1);
2695
2696 /* setup count is in *words* */
2697 state->setup_count = 2*CVAL(req->vwv+17, 1);
2698 state->setup = NULL;
2699 state->call = function_code;
2700
2701 DEBUG(10, ("num_setup=%u, "
2702 "param_total=%u, this_param=%u, max_param=%u, "
2703 "data_total=%u, this_data=%u, max_data=%u, "
2704 "param_offset=%u, data_offset=%u\n",
2705 (unsigned)state->setup_count,
2706 (unsigned)state->total_param, (unsigned)pscnt,
2707 (unsigned)state->max_param_return,
2708 (unsigned)state->total_data, (unsigned)dscnt,
2709 (unsigned)state->max_data_return,
2710 (unsigned)psoff, (unsigned)dsoff));
2711
2712 /*
2713 * All nttrans messages we handle have smb_wct == 19 +
2714 * state->setup_count. Ensure this is so as a sanity check.
2715 */
2716
2717 if(req->wct != 19 + (state->setup_count/2)) {
2718 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2719 req->wct, 19 + (state->setup_count/2)));
2720 goto bad_param;
2721 }
2722
2723 /* Don't allow more than 128mb for each value. */
2724 if ((state->total_data > (1024*1024*128)) ||
2725 (state->total_param > (1024*1024*128))) {
2726 reply_doserror(req, ERRDOS, ERRnomem);
2727 END_PROFILE(SMBnttrans);
2728 return;
2729 }
2730
2731 if ((dscnt > state->total_data) || (pscnt > state->total_param))
2732 goto bad_param;
2733
2734 if (state->total_data) {
2735
2736 if (trans_oob(state->total_data, 0, dscnt)
2737 || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
2738 goto bad_param;
2739 }
2740
2741 /* Can't use talloc here, the core routines do realloc on the
2742 * params and data. */
2743 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2744 DEBUG(0,("reply_nttrans: data malloc fail for %u "
2745 "bytes !\n", (unsigned int)state->total_data));
2746 TALLOC_FREE(state);
2747 reply_doserror(req, ERRDOS, ERRnomem);
2748 END_PROFILE(SMBnttrans);
2749 return;
2750 }
2751
2752 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2753 }
2754
2755 if (state->total_param) {
2756
2757 if (trans_oob(state->total_param, 0, pscnt)
2758 || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
2759 goto bad_param;
2760 }
2761
2762 /* Can't use talloc here, the core routines do realloc on the
2763 * params and data. */
2764 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2765 DEBUG(0,("reply_nttrans: param malloc fail for %u "
2766 "bytes !\n", (unsigned int)state->total_param));
2767 SAFE_FREE(state->data);
2768 TALLOC_FREE(state);
2769 reply_doserror(req, ERRDOS, ERRnomem);
2770 END_PROFILE(SMBnttrans);
2771 return;
2772 }
2773
2774 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2775 }
2776
2777 state->received_data = dscnt;
2778 state->received_param = pscnt;
2779
2780 if(state->setup_count > 0) {
2781 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2782 state->setup_count));
2783
2784 /*
2785 * No overflow possible here, state->setup_count is an
2786 * unsigned int, being filled by a single byte from
2787 * CVAL(req->vwv+13, 0) above. The cast in the comparison
2788 * below is not necessary, it's here to clarify things. The
2789 * validity of req->vwv and req->wct has been checked in
2790 * init_smb_request already.
2791 */
2792 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
2793 goto bad_param;
2794 }
2795
2796 state->setup = (uint16 *)TALLOC(state, state->setup_count);
2797 if (state->setup == NULL) {
2798 DEBUG(0,("reply_nttrans : Out of memory\n"));
2799 SAFE_FREE(state->data);
2800 SAFE_FREE(state->param);
2801 TALLOC_FREE(state);
2802 reply_doserror(req, ERRDOS, ERRnomem);
2803 END_PROFILE(SMBnttrans);
2804 return;
2805 }
2806
2807 memcpy(state->setup, req->vwv+19, state->setup_count);
2808 dump_data(10, (uint8 *)state->setup, state->setup_count);
2809 }
2810
2811 if ((state->received_data == state->total_data) &&
2812 (state->received_param == state->total_param)) {
2813 handle_nttrans(conn, state, req);
2814 SAFE_FREE(state->param);
2815 SAFE_FREE(state->data);
2816 TALLOC_FREE(state);
2817 END_PROFILE(SMBnttrans);
2818 return;
2819 }
2820
2821 DLIST_ADD(conn->pending_trans, state);
2822
2823 /* We need to send an interim response then receive the rest
2824 of the parameter/data bytes */
2825 reply_outbuf(req, 0, 0);
2826 show_msg((char *)req->outbuf);
2827 END_PROFILE(SMBnttrans);
2828 return;
2829
2830 bad_param:
2831
2832 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2833 SAFE_FREE(state->data);
2834 SAFE_FREE(state->param);
2835 TALLOC_FREE(state);
2836 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2837 END_PROFILE(SMBnttrans);
2838 return;
2839 }
2840
2841 /****************************************************************************
2842 Reply to a SMBnttranss
2843 ****************************************************************************/
2844
2845 void reply_nttranss(struct smb_request *req)
2846 {
2847 connection_struct *conn = req->conn;
2848 uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
2849 struct trans_state *state;
2850
2851 START_PROFILE(SMBnttranss);
2852
2853 show_msg((char *)req->inbuf);
2854
2855 if (req->wct < 18) {
2856 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2857 END_PROFILE(SMBnttranss);
2858 return;
2859 }
2860
2861 for (state = conn->pending_trans; state != NULL;
2862 state = state->next) {
2863 if (state->mid == req->mid) {
2864 break;
2865 }
2866 }
2867
2868 if ((state == NULL) || (state->cmd != SMBnttrans)) {
2869 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2870 END_PROFILE(SMBnttranss);
2871 return;
2872 }
2873
2874 /* Revise state->total_param and state->total_data in case they have
2875 changed downwards */
2876 if (IVAL(req->vwv+1, 1) < state->total_param) {
2877 state->total_param = IVAL(req->vwv+1, 1);
2878 }
2879 if (IVAL(req->vwv+3, 1) < state->total_data) {
2880 state->total_data = IVAL(req->vwv+3, 1);
2881 }
2882
2883 pcnt = IVAL(req->vwv+5, 1);
2884 poff = IVAL(req->vwv+7, 1);
2885 pdisp = IVAL(req->vwv+9, 1);
2886
2887 dcnt = IVAL(req->vwv+11, 1);
2888 doff = IVAL(req->vwv+13, 1);
2889 ddisp = IVAL(req->vwv+15, 1);
2890
2891 state->received_param += pcnt;
2892 state->received_data += dcnt;
2893
2894 if ((state->received_data > state->total_data) ||
2895 (state->received_param > state->total_param))
2896 goto bad_param;
2897
2898 if (pcnt) {
2899 if (trans_oob(state->total_param, pdisp, pcnt)
2900 || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
2901 goto bad_param;
2902 }
2903 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
2904 }
2905
2906 if (dcnt) {
2907 if (trans_oob(state->total_data, ddisp, dcnt)
2908 || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
2909 goto bad_param;
2910 }
2911 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
2912 }
2913
2914 if ((state->received_param < state->total_param) ||
2915 (state->received_data < state->total_data)) {
2916 END_PROFILE(SMBnttranss);
2917 return;
2918 }
2919
2920 handle_nttrans(conn, state, req);
2921
2922 DLIST_REMOVE(conn->pending_trans, state);
2923 SAFE_FREE(state->data);
2924 SAFE_FREE(state->param);
2925 TALLOC_FREE(state);
2926 END_PROFILE(SMBnttranss);
2927 return;
2928
2929 bad_param:
2930
2931 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
2932 DLIST_REMOVE(conn->pending_trans, state);
2933 SAFE_FREE(state->data);
2934 SAFE_FREE(state->param);
2935 TALLOC_FREE(state);
2936 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2937 END_PROFILE(SMBnttranss);
2938 return;
2939 }
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