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s3: Add a new SMB_VFS_GET_ALLOC_SIZE vfs operation
[Samba.git] / source3 / smbd / nttrans.c
blob0ad4df6e90dcc1accf2d995bf1c0fed91ff3ae22
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 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
235 }
236
237 TALLOC_FREE(req->outbuf);
238
239 pp += params_sent_thistime;
240 pd += data_sent_thistime;
241
242 params_to_send -= params_sent_thistime;
243 data_to_send -= data_sent_thistime;
244
245 /*
246 * Sanity check
247 */
248
249 if(params_to_send < 0 || data_to_send < 0) {
250 DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
251 params_to_send, data_to_send));
252 exit_server_cleanly("send_nt_replies: internal error");
253 }
254 }
255 }
256
257 /****************************************************************************
258 Is it an NTFS stream name ?
259 An NTFS file name is <path>.<extention>:<stream name>:<stream type>
260 $DATA can be used as both a stream name and a stream type. A missing stream
261 name or type implies $DATA.
262
263 Both Windows stream names and POSIX files can contain the ':' character.
264 This function first checks for the existence of a colon in the last component
265 of the given name. If the name contains a colon we differentiate between a
266 stream and POSIX file by checking if the latter exists through a POSIX stat.
267
268 Function assumes we've already chdir() to the "root" directory of fname.
269 ****************************************************************************/
270
271 bool is_ntfs_stream_name(const char *fname)
272 {
273 const char *lastcomp;
274 SMB_STRUCT_STAT sbuf;
275
276 /* If all pathnames are treated as POSIX we ignore streams. */
277 if (lp_posix_pathnames()) {
278 return false;
279 }
280
281 /* Find the last component of the name. */
282 if ((lastcomp = strrchr_m(fname, '/')) != NULL)
283 ++lastcomp;
284 else
285 lastcomp = fname;
286
287 /* If there is no colon in the last component, it's not a stream. */
288 if (strchr_m(lastcomp, ':') == NULL)
289 return false;
290
291 /*
292 * If file already exists on disk, it's not a stream. The stat must
293 * bypass the vfs layer so streams modules don't intefere.
294 */
295 if (sys_stat(fname, &sbuf) == 0) {
296 DEBUG(5, ("is_ntfs_stream_name: file %s contains a ':' but is "
297 "not a stream\n", fname));
298 return false;
299 }
300
301 return true;
302 }
303
304 /****************************************************************************
305 Reply to an NT create and X call on a pipe
306 ****************************************************************************/
307
308 static void nt_open_pipe(char *fname, connection_struct *conn,
309 struct smb_request *req, int *ppnum)
310 {
311 files_struct *fsp;
312 NTSTATUS status;
313
314 DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
315
316 /* Strip \\ off the name. */
317 fname++;
318
319 status = open_np_file(req, fname, &fsp);
320 if (!NT_STATUS_IS_OK(status)) {
321 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
322 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
323 ERRDOS, ERRbadpipe);
324 return;
325 }
326 reply_nterror(req, status);
327 return;
328 }
329
330 *ppnum = fsp->fnum;
331 return;
332 }
333
334 /****************************************************************************
335 Reply to an NT create and X call for pipes.
336 ****************************************************************************/
337
338 static void do_ntcreate_pipe_open(connection_struct *conn,
339 struct smb_request *req)
340 {
341 char *fname = NULL;
342 int pnum = -1;
343 char *p = NULL;
344 uint32 flags = IVAL(req->vwv+3, 1);
345 TALLOC_CTX *ctx = talloc_tos();
346
347 srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
348
349 if (!fname) {
350 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
351 ERRDOS, ERRbadpipe);
352 return;
353 }
354 nt_open_pipe(fname, conn, req, &pnum);
355
356 if (req->outbuf) {
357 /* error reply */
358 return;
359 }
360
361 /*
362 * Deal with pipe return.
363 */
364
365 if (flags & EXTENDED_RESPONSE_REQUIRED) {
366 /* This is very strange. We
367 * return 50 words, but only set
368 * the wcnt to 42 ? It's definately
369 * what happens on the wire....
370 */
371 reply_outbuf(req, 50, 0);
372 SCVAL(req->outbuf,smb_wct,42);
373 } else {
374 reply_outbuf(req, 34, 0);
375 }
376
377 p = (char *)req->outbuf + smb_vwv2;
378 p++;
379 SSVAL(p,0,pnum);
380 p += 2;
381 SIVAL(p,0,FILE_WAS_OPENED);
382 p += 4;
383 p += 32;
384 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
385 p += 20;
386 /* File type. */
387 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
388 /* Device state. */
389 SSVAL(p,2, 0x5FF); /* ? */
390 p += 4;
391
392 if (flags & EXTENDED_RESPONSE_REQUIRED) {
393 p += 25;
394 SIVAL(p,0,FILE_GENERIC_ALL);
395 /*
396 * For pipes W2K3 seems to return
397 * 0x12019B next.
398 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
399 */
400 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
401 }
402
403 DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
404
405 chain_reply(req);
406 }
407
408 /****************************************************************************
409 Reply to an NT create and X call.
410 ****************************************************************************/
411
412 void reply_ntcreate_and_X(struct smb_request *req)
413 {
414 connection_struct *conn = req->conn;
415 char *fname = NULL;
416 uint32 flags;
417 uint32 access_mask;
418 uint32 file_attributes;
419 uint32 share_access;
420 uint32 create_disposition;
421 uint32 create_options;
422 uint16 root_dir_fid;
423 uint64_t allocation_size;
424 /* Breakout the oplock request bits so we can set the
425 reply bits separately. */
426 uint32 fattr=0;
427 SMB_OFF_T file_len = 0;
428 SMB_STRUCT_STAT sbuf;
429 int info = 0;
430 files_struct *fsp = NULL;
431 char *p = NULL;
432 struct timespec c_timespec;
433 struct timespec a_timespec;
434 struct timespec m_timespec;
435 NTSTATUS status;
436 int oplock_request;
437 uint8_t oplock_granted = NO_OPLOCK_RETURN;
438 TALLOC_CTX *ctx = talloc_tos();
439
440 START_PROFILE(SMBntcreateX);
441
442 if (req->wct < 24) {
443 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
444 return;
445 }
446
447 flags = IVAL(req->vwv+3, 1);
448 access_mask = IVAL(req->vwv+7, 1);
449 file_attributes = IVAL(req->vwv+13, 1);
450 share_access = IVAL(req->vwv+15, 1);
451 create_disposition = IVAL(req->vwv+17, 1);
452 create_options = IVAL(req->vwv+19, 1);
453 root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
454
455 allocation_size = (uint64_t)IVAL(req->vwv+9, 1);
456 #ifdef LARGE_SMB_OFF_T
457 allocation_size |= (((uint64_t)IVAL(req->vwv+11, 1)) << 32);
458 #endif
459
460 srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
461 STR_TERMINATE, &status);
462
463 if (!NT_STATUS_IS_OK(status)) {
464 reply_nterror(req, status);
465 END_PROFILE(SMBntcreateX);
466 return;
467 }
468
469 DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
470 "file_attributes = 0x%x, share_access = 0x%x, "
471 "create_disposition = 0x%x create_options = 0x%x "
472 "root_dir_fid = 0x%x, fname = %s\n",
473 (unsigned int)flags,
474 (unsigned int)access_mask,
475 (unsigned int)file_attributes,
476 (unsigned int)share_access,
477 (unsigned int)create_disposition,
478 (unsigned int)create_options,
479 (unsigned int)root_dir_fid,
480 fname));
481
482 /*
483 * we need to remove ignored bits when they come directly from the client
484 * because we reuse some of them for internal stuff
485 */
486 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
487
488 /*
489 * If it's an IPC, use the pipe handler.
490 */
491
492 if (IS_IPC(conn)) {
493 if (lp_nt_pipe_support()) {
494 do_ntcreate_pipe_open(conn, req);
495 END_PROFILE(SMBntcreateX);
496 return;
497 }
498 reply_doserror(req, ERRDOS, ERRnoaccess);
499 END_PROFILE(SMBntcreateX);
500 return;
501 }
502
503 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
504 if (oplock_request) {
505 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
506 ? BATCH_OPLOCK : 0;
507 }
508
509 status = SMB_VFS_CREATE_FILE(
510 conn, /* conn */
511 req, /* req */
512 root_dir_fid, /* root_dir_fid */
513 fname, /* fname */
514 CFF_DOS_PATH, /* create_file_flags */
515 access_mask, /* access_mask */
516 share_access, /* share_access */
517 create_disposition, /* create_disposition*/
518 create_options, /* create_options */
519 file_attributes, /* file_attributes */
520 oplock_request, /* oplock_request */
521 allocation_size, /* allocation_size */
522 NULL, /* sd */
523 NULL, /* ea_list */
524 &fsp, /* result */
525 &info, /* pinfo */
526 &sbuf); /* psbuf */
527
528 if (!NT_STATUS_IS_OK(status)) {
529 if (open_was_deferred(req->mid)) {
530 /* We have re-scheduled this call, no error. */
531 END_PROFILE(SMBntcreateX);
532 return;
533 }
534 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_COLLISION)) {
535 reply_botherror(req, status, ERRDOS, ERRfilexists);
536 }
537 else {
538 reply_nterror(req, status);
539 }
540 END_PROFILE(SMBntcreateX);
541 return;
542 }
543
544 /*
545 * If the caller set the extended oplock request bit
546 * and we granted one (by whatever means) - set the
547 * correct bit for extended oplock reply.
548 */
549
550 if (oplock_request &&
551 (lp_fake_oplocks(SNUM(conn))
552 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
553
554 /*
555 * Exclusive oplock granted
556 */
557
558 if (flags & REQUEST_BATCH_OPLOCK) {
559 oplock_granted = BATCH_OPLOCK_RETURN;
560 } else {
561 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
562 }
563 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
564 oplock_granted = LEVEL_II_OPLOCK_RETURN;
565 } else {
566 oplock_granted = NO_OPLOCK_RETURN;
567 }
568
569 file_len = sbuf.st_size;
570 fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
571 if (fattr == 0) {
572 fattr = FILE_ATTRIBUTE_NORMAL;
573 }
574
575 if (flags & EXTENDED_RESPONSE_REQUIRED) {
576 /* This is very strange. We
577 * return 50 words, but only set
578 * the wcnt to 42 ? It's definately
579 * what happens on the wire....
580 */
581 reply_outbuf(req, 50, 0);
582 SCVAL(req->outbuf,smb_wct,42);
583 } else {
584 reply_outbuf(req, 34, 0);
585 }
586
587 p = (char *)req->outbuf + smb_vwv2;
588
589 SCVAL(p, 0, oplock_granted);
590
591 p++;
592 SSVAL(p,0,fsp->fnum);
593 p += 2;
594 if ((create_disposition == FILE_SUPERSEDE)
595 && (info == FILE_WAS_OVERWRITTEN)) {
596 SIVAL(p,0,FILE_WAS_SUPERSEDED);
597 } else {
598 SIVAL(p,0,info);
599 }
600 p += 4;
601
602 /* Create time. */
603 c_timespec = get_create_timespec(
604 &sbuf,lp_fake_dir_create_times(SNUM(conn)));
605 a_timespec = get_atimespec(&sbuf);
606 m_timespec = get_mtimespec(&sbuf);
607
608 if (lp_dos_filetime_resolution(SNUM(conn))) {
609 dos_filetime_timespec(&c_timespec);
610 dos_filetime_timespec(&a_timespec);
611 dos_filetime_timespec(&m_timespec);
612 }
613
614 put_long_date_timespec(p, c_timespec); /* create time. */
615 p += 8;
616 put_long_date_timespec(p, a_timespec); /* access time */
617 p += 8;
618 put_long_date_timespec(p, m_timespec); /* write time */
619 p += 8;
620 put_long_date_timespec(p, m_timespec); /* change time */
621 p += 8;
622 SIVAL(p,0,fattr); /* File Attributes. */
623 p += 4;
624 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&sbuf));
625 p += 8;
626 SOFF_T(p,0,file_len);
627 p += 8;
628 if (flags & EXTENDED_RESPONSE_REQUIRED) {
629 SSVAL(p,2,0x7);
630 }
631 p += 4;
632 SCVAL(p,0,fsp->is_directory ? 1 : 0);
633
634 if (flags & EXTENDED_RESPONSE_REQUIRED) {
635 uint32 perms = 0;
636 p += 25;
637 if (fsp->is_directory
638 || can_write_to_file(conn, fsp->fsp_name, &sbuf)) {
639 perms = FILE_GENERIC_ALL;
640 } else {
641 perms = FILE_GENERIC_READ|FILE_EXECUTE;
642 }
643 SIVAL(p,0,perms);
644 }
645
646 DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
647 fsp->fnum, fsp->fsp_name));
648
649 chain_reply(req);
650 END_PROFILE(SMBntcreateX);
651 return;
652 }
653
654 /****************************************************************************
655 Reply to a NT_TRANSACT_CREATE call to open a pipe.
656 ****************************************************************************/
657
658 static void do_nt_transact_create_pipe(connection_struct *conn,
659 struct smb_request *req,
660 uint16 **ppsetup, uint32 setup_count,
661 char **ppparams, uint32 parameter_count,
662 char **ppdata, uint32 data_count)
663 {
664 char *fname = NULL;
665 char *params = *ppparams;
666 int pnum = -1;
667 char *p = NULL;
668 NTSTATUS status;
669 size_t param_len;
670 uint32 flags;
671 TALLOC_CTX *ctx = talloc_tos();
672
673 /*
674 * Ensure minimum number of parameters sent.
675 */
676
677 if(parameter_count < 54) {
678 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
679 reply_doserror(req, ERRDOS, ERRnoaccess);
680 return;
681 }
682
683 flags = IVAL(params,0);
684
685 srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
686 parameter_count-53, STR_TERMINATE,
687 &status);
688 if (!NT_STATUS_IS_OK(status)) {
689 reply_nterror(req, status);
690 return;
691 }
692
693 nt_open_pipe(fname, conn, req, &pnum);
694
695 if (req->outbuf) {
696 /* Error return */
697 return;
698 }
699
700 /* Realloc the size of parameters and data we will return */
701 if (flags & EXTENDED_RESPONSE_REQUIRED) {
702 /* Extended response is 32 more byyes. */
703 param_len = 101;
704 } else {
705 param_len = 69;
706 }
707 params = nttrans_realloc(ppparams, param_len);
708 if(params == NULL) {
709 reply_doserror(req, ERRDOS, ERRnomem);
710 return;
711 }
712
713 p = params;
714 SCVAL(p,0,NO_OPLOCK_RETURN);
715
716 p += 2;
717 SSVAL(p,0,pnum);
718 p += 2;
719 SIVAL(p,0,FILE_WAS_OPENED);
720 p += 8;
721
722 p += 32;
723 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
724 p += 20;
725 /* File type. */
726 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
727 /* Device state. */
728 SSVAL(p,2, 0x5FF); /* ? */
729 p += 4;
730
731 if (flags & EXTENDED_RESPONSE_REQUIRED) {
732 p += 25;
733 SIVAL(p,0,FILE_GENERIC_ALL);
734 /*
735 * For pipes W2K3 seems to return
736 * 0x12019B next.
737 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
738 */
739 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
740 }
741
742 DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
743
744 /* Send the required number of replies */
745 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
746
747 return;
748 }
749
750 /****************************************************************************
751 Internal fn to set security descriptors.
752 ****************************************************************************/
753
754 static NTSTATUS set_sd(files_struct *fsp, uint8 *data, uint32 sd_len,
755 uint32 security_info_sent)
756 {
757 SEC_DESC *psd = NULL;
758 NTSTATUS status;
759
760 if (sd_len == 0 || !lp_nt_acl_support(SNUM(fsp->conn))) {
761 return NT_STATUS_OK;
762 }
763
764 status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
765
766 if (!NT_STATUS_IS_OK(status)) {
767 return status;
768 }
769
770 if (psd->owner_sid == NULL) {
771 security_info_sent &= ~OWNER_SECURITY_INFORMATION;
772 }
773 if (psd->group_sid == NULL) {
774 security_info_sent &= ~GROUP_SECURITY_INFORMATION;
775 }
776
777 /* Convert all the generic bits. */
778 security_acl_map_generic(psd->dacl, &file_generic_mapping);
779 security_acl_map_generic(psd->sacl, &file_generic_mapping);
780
781 if (DEBUGLEVEL >= 10) {
782 DEBUG(10,("set_sd for file %s\n", fsp->fsp_name ));
783 NDR_PRINT_DEBUG(security_descriptor, psd);
784 }
785
786 status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
787
788 TALLOC_FREE(psd);
789
790 return status;
791 }
792
793 /****************************************************************************
794 Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
795 ****************************************************************************/
796
797 static struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
798 {
799 struct ea_list *ea_list_head = NULL;
800 size_t offset = 0;
801
802 if (data_size < 4) {
803 return NULL;
804 }
805
806 while (offset + 4 <= data_size) {
807 size_t next_offset = IVAL(pdata,offset);
808 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
809
810 if (!eal) {
811 return NULL;
812 }
813
814 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
815 if (next_offset == 0) {
816 break;
817 }
818 offset += next_offset;
819 }
820
821 return ea_list_head;
822 }
823
824 /****************************************************************************
825 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
826 ****************************************************************************/
827
828 static void call_nt_transact_create(connection_struct *conn,
829 struct smb_request *req,
830 uint16 **ppsetup, uint32 setup_count,
831 char **ppparams, uint32 parameter_count,
832 char **ppdata, uint32 data_count,
833 uint32 max_data_count)
834 {
835 char *fname = NULL;
836 char *params = *ppparams;
837 char *data = *ppdata;
838 /* Breakout the oplock request bits so we can set the reply bits separately. */
839 uint32 fattr=0;
840 SMB_OFF_T file_len = 0;
841 SMB_STRUCT_STAT sbuf;
842 int info = 0;
843 files_struct *fsp = NULL;
844 char *p = NULL;
845 uint32 flags;
846 uint32 access_mask;
847 uint32 file_attributes;
848 uint32 share_access;
849 uint32 create_disposition;
850 uint32 create_options;
851 uint32 sd_len;
852 struct security_descriptor *sd = NULL;
853 uint32 ea_len;
854 uint16 root_dir_fid;
855 struct timespec c_timespec;
856 struct timespec a_timespec;
857 struct timespec m_timespec;
858 struct ea_list *ea_list = NULL;
859 NTSTATUS status;
860 size_t param_len;
861 uint64_t allocation_size;
862 int oplock_request;
863 uint8_t oplock_granted;
864 TALLOC_CTX *ctx = talloc_tos();
865
866 DEBUG(5,("call_nt_transact_create\n"));
867
868 /*
869 * If it's an IPC, use the pipe handler.
870 */
871
872 if (IS_IPC(conn)) {
873 if (lp_nt_pipe_support()) {
874 do_nt_transact_create_pipe(
875 conn, req,
876 ppsetup, setup_count,
877 ppparams, parameter_count,
878 ppdata, data_count);
879 return;
880 }
881 reply_doserror(req, ERRDOS, ERRnoaccess);
882 return;
883 }
884
885 /*
886 * Ensure minimum number of parameters sent.
887 */
888
889 if(parameter_count < 54) {
890 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
891 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
892 return;
893 }
894
895 flags = IVAL(params,0);
896 access_mask = IVAL(params,8);
897 file_attributes = IVAL(params,20);
898 share_access = IVAL(params,24);
899 create_disposition = IVAL(params,28);
900 create_options = IVAL(params,32);
901 sd_len = IVAL(params,36);
902 ea_len = IVAL(params,40);
903 root_dir_fid = (uint16)IVAL(params,4);
904 allocation_size = (uint64_t)IVAL(params,12);
905 #ifdef LARGE_SMB_OFF_T
906 allocation_size |= (((uint64_t)IVAL(params,16)) << 32);
907 #endif
908
909 /*
910 * we need to remove ignored bits when they come directly from the client
911 * because we reuse some of them for internal stuff
912 */
913 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
914
915 /* Ensure the data_len is correct for the sd and ea values given. */
916 if ((ea_len + sd_len > data_count)
917 || (ea_len > data_count) || (sd_len > data_count)
918 || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
919 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
920 "%u, data_count = %u\n", (unsigned int)ea_len,
921 (unsigned int)sd_len, (unsigned int)data_count));
922 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
923 return;
924 }
925
926 if (sd_len) {
927 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
928 sd_len));
929
930 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
931 &sd);
932 if (!NT_STATUS_IS_OK(status)) {
933 DEBUG(10, ("call_nt_transact_create: "
934 "unmarshall_sec_desc failed: %s\n",
935 nt_errstr(status)));
936 reply_nterror(req, status);
937 return;
938 }
939 }
940
941 if (ea_len) {
942 if (!lp_ea_support(SNUM(conn))) {
943 DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
944 "EA's not supported.\n",
945 (unsigned int)ea_len));
946 reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
947 return;
948 }
949
950 if (ea_len < 10) {
951 DEBUG(10,("call_nt_transact_create - ea_len = %u - "
952 "too small (should be more than 10)\n",
953 (unsigned int)ea_len ));
954 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
955 return;
956 }
957
958 /* We have already checked that ea_len <= data_count here. */
959 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
960 ea_len);
961 if (ea_list == NULL) {
962 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
963 return;
964 }
965 }
966
967 srvstr_get_path(ctx, params, req->flags2, &fname,
968 params+53, parameter_count-53,
969 STR_TERMINATE, &status);
970 if (!NT_STATUS_IS_OK(status)) {
971 reply_nterror(req, status);
972 return;
973 }
974
975 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
976 if (oplock_request) {
977 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
978 ? BATCH_OPLOCK : 0;
979 }
980
981 status = SMB_VFS_CREATE_FILE(
982 conn, /* conn */
983 req, /* req */
984 root_dir_fid, /* root_dir_fid */
985 fname, /* fname */
986 CFF_DOS_PATH, /* create_file_flags */
987 access_mask, /* access_mask */
988 share_access, /* share_access */
989 create_disposition, /* create_disposition*/
990 create_options, /* create_options */
991 file_attributes, /* file_attributes */
992 oplock_request, /* oplock_request */
993 allocation_size, /* allocation_size */
994 sd, /* sd */
995 ea_list, /* ea_list */
996 &fsp, /* result */
997 &info, /* pinfo */
998 &sbuf); /* psbuf */
999
1000 if(!NT_STATUS_IS_OK(status)) {
1001 if (open_was_deferred(req->mid)) {
1002 /* We have re-scheduled this call, no error. */
1003 return;
1004 }
1005 reply_openerror(req, status);
1006 return;
1007 }
1008
1009 /*
1010 * If the caller set the extended oplock request bit
1011 * and we granted one (by whatever means) - set the
1012 * correct bit for extended oplock reply.
1013 */
1014
1015 if (oplock_request &&
1016 (lp_fake_oplocks(SNUM(conn))
1017 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1018
1019 /*
1020 * Exclusive oplock granted
1021 */
1022
1023 if (flags & REQUEST_BATCH_OPLOCK) {
1024 oplock_granted = BATCH_OPLOCK_RETURN;
1025 } else {
1026 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1027 }
1028 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1029 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1030 } else {
1031 oplock_granted = NO_OPLOCK_RETURN;
1032 }
1033
1034 file_len = sbuf.st_size;
1035 fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
1036 if (fattr == 0) {
1037 fattr = FILE_ATTRIBUTE_NORMAL;
1038 }
1039
1040 /* Realloc the size of parameters and data we will return */
1041 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1042 /* Extended response is 32 more byyes. */
1043 param_len = 101;
1044 } else {
1045 param_len = 69;
1046 }
1047 params = nttrans_realloc(ppparams, param_len);
1048 if(params == NULL) {
1049 reply_doserror(req, ERRDOS, ERRnomem);
1050 return;
1051 }
1052
1053 p = params;
1054 SCVAL(p, 0, oplock_granted);
1055
1056 p += 2;
1057 SSVAL(p,0,fsp->fnum);
1058 p += 2;
1059 if ((create_disposition == FILE_SUPERSEDE)
1060 && (info == FILE_WAS_OVERWRITTEN)) {
1061 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1062 } else {
1063 SIVAL(p,0,info);
1064 }
1065 p += 8;
1066
1067 /* Create time. */
1068 c_timespec = get_create_timespec(
1069 &sbuf,lp_fake_dir_create_times(SNUM(conn)));
1070 a_timespec = get_atimespec(&sbuf);
1071 m_timespec = get_mtimespec(&sbuf);
1072
1073 if (lp_dos_filetime_resolution(SNUM(conn))) {
1074 dos_filetime_timespec(&c_timespec);
1075 dos_filetime_timespec(&a_timespec);
1076 dos_filetime_timespec(&m_timespec);
1077 }
1078
1079 put_long_date_timespec(p, c_timespec); /* create time. */
1080 p += 8;
1081 put_long_date_timespec(p, a_timespec); /* access time */
1082 p += 8;
1083 put_long_date_timespec(p, m_timespec); /* write time */
1084 p += 8;
1085 put_long_date_timespec(p, m_timespec); /* change time */
1086 p += 8;
1087 SIVAL(p,0,fattr); /* File Attributes. */
1088 p += 4;
1089 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&sbuf));
1090 p += 8;
1091 SOFF_T(p,0,file_len);
1092 p += 8;
1093 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1094 SSVAL(p,2,0x7);
1095 }
1096 p += 4;
1097 SCVAL(p,0,fsp->is_directory ? 1 : 0);
1098
1099 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1100 uint32 perms = 0;
1101 p += 25;
1102 if (fsp->is_directory
1103 || can_write_to_file(conn, fsp->fsp_name, &sbuf)) {
1104 perms = FILE_GENERIC_ALL;
1105 } else {
1106 perms = FILE_GENERIC_READ|FILE_EXECUTE;
1107 }
1108 SIVAL(p,0,perms);
1109 }
1110
1111 DEBUG(5,("call_nt_transact_create: open name = %s\n", fsp->fsp_name));
1112
1113 /* Send the required number of replies */
1114 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1115
1116 return;
1117 }
1118
1119 /****************************************************************************
1120 Reply to a NT CANCEL request.
1121 conn POINTER CAN BE NULL HERE !
1122 ****************************************************************************/
1123
1124 void reply_ntcancel(struct smb_request *req)
1125 {
1126 /*
1127 * Go through and cancel any pending change notifies.
1128 */
1129
1130 START_PROFILE(SMBntcancel);
1131 remove_pending_change_notify_requests_by_mid(req->mid);
1132 remove_pending_lock_requests_by_mid(req->mid);
1133 srv_cancel_sign_response(req->mid);
1134
1135 DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", req->mid));
1136
1137 END_PROFILE(SMBntcancel);
1138 return;
1139 }
1140
1141 /****************************************************************************
1142 Copy a file.
1143 ****************************************************************************/
1144
1145 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1146 connection_struct *conn,
1147 struct smb_request *req,
1148 const char *oldname_in,
1149 const char *newname_in,
1150 uint32 attrs)
1151 {
1152 SMB_STRUCT_STAT sbuf1, sbuf2;
1153 char *oldname = NULL;
1154 char *newname = NULL;
1155 char *last_component_oldname = NULL;
1156 char *last_component_newname = NULL;
1157 files_struct *fsp1,*fsp2;
1158 uint32 fattr;
1159 int info;
1160 SMB_OFF_T ret=-1;
1161 NTSTATUS status = NT_STATUS_OK;
1162 char *parent;
1163
1164 ZERO_STRUCT(sbuf1);
1165 ZERO_STRUCT(sbuf2);
1166
1167 if (!CAN_WRITE(conn)) {
1168 return NT_STATUS_MEDIA_WRITE_PROTECTED;
1169 }
1170
1171 status = unix_convert(ctx, conn, oldname_in, False, &oldname,
1172 &last_component_oldname, &sbuf1);
1173 if (!NT_STATUS_IS_OK(status)) {
1174 return status;
1175 }
1176
1177 status = check_name(conn, oldname);
1178 if (!NT_STATUS_IS_OK(status)) {
1179 return status;
1180 }
1181
1182 /* Source must already exist. */
1183 if (!VALID_STAT(sbuf1)) {
1184 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
1185 }
1186 /* Ensure attributes match. */
1187 fattr = dos_mode(conn,oldname,&sbuf1);
1188 if ((fattr & ~attrs) & (aHIDDEN | aSYSTEM)) {
1189 return NT_STATUS_NO_SUCH_FILE;
1190 }
1191
1192 status = unix_convert(ctx, conn, newname_in, False, &newname,
1193 &last_component_newname, &sbuf2);
1194 if (!NT_STATUS_IS_OK(status)) {
1195 return status;
1196 }
1197
1198 status = check_name(conn, newname);
1199 if (!NT_STATUS_IS_OK(status)) {
1200 return status;
1201 }
1202
1203 /* Disallow if newname already exists. */
1204 if (VALID_STAT(sbuf2)) {
1205 return NT_STATUS_OBJECT_NAME_COLLISION;
1206 }
1207
1208 /* No links from a directory. */
1209 if (S_ISDIR(sbuf1.st_mode)) {
1210 return NT_STATUS_FILE_IS_A_DIRECTORY;
1211 }
1212
1213 /* Ensure this is within the share. */
1214 status = check_reduced_name(conn, oldname);
1215 if (!NT_STATUS_IS_OK(status)) {
1216 return status;
1217 }
1218
1219 DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1220 oldname, newname));
1221
1222 status = SMB_VFS_CREATE_FILE(
1223 conn, /* conn */
1224 req, /* req */
1225 0, /* root_dir_fid */
1226 oldname, /* fname */
1227 0, /* create_file_flags */
1228 FILE_READ_DATA, /* access_mask */
1229 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1230 FILE_SHARE_DELETE),
1231 FILE_OPEN, /* create_disposition*/
1232 0, /* create_options */
1233 FILE_ATTRIBUTE_NORMAL, /* file_attributes */
1234 NO_OPLOCK, /* oplock_request */
1235 0, /* allocation_size */
1236 NULL, /* sd */
1237 NULL, /* ea_list */
1238 &fsp1, /* result */
1239 &info, /* pinfo */
1240 &sbuf1); /* psbuf */
1241
1242 if (!NT_STATUS_IS_OK(status)) {
1243 return status;
1244 }
1245
1246 status = SMB_VFS_CREATE_FILE(
1247 conn, /* conn */
1248 req, /* req */
1249 0, /* root_dir_fid */
1250 newname, /* fname */
1251 0, /* create_file_flags */
1252 FILE_WRITE_DATA, /* access_mask */
1253 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1254 FILE_SHARE_DELETE),
1255 FILE_CREATE, /* create_disposition*/
1256 0, /* create_options */
1257 fattr, /* file_attributes */
1258 NO_OPLOCK, /* oplock_request */
1259 0, /* allocation_size */
1260 NULL, /* sd */
1261 NULL, /* ea_list */
1262 &fsp2, /* result */
1263 &info, /* pinfo */
1264 &sbuf2); /* psbuf */
1265
1266 if (!NT_STATUS_IS_OK(status)) {
1267 close_file(NULL, fsp1, ERROR_CLOSE);
1268 return status;
1269 }
1270
1271 if (sbuf1.st_size) {
1272 ret = vfs_transfer_file(fsp1, fsp2, sbuf1.st_size);
1273 }
1274
1275 /*
1276 * As we are opening fsp1 read-only we only expect
1277 * an error on close on fsp2 if we are out of space.
1278 * Thus we don't look at the error return from the
1279 * close of fsp1.
1280 */
1281 close_file(NULL, fsp1, NORMAL_CLOSE);
1282
1283 /* Ensure the modtime is set correctly on the destination file. */
1284 set_close_write_time(fsp2, get_mtimespec(&sbuf1));
1285
1286 status = close_file(NULL, fsp2, NORMAL_CLOSE);
1287
1288 /* Grrr. We have to do this as open_file_ntcreate adds aARCH when it
1289 creates the file. This isn't the correct thing to do in the copy
1290 case. JRA */
1291 if (!parent_dirname(talloc_tos(), newname, &parent, NULL)) {
1292 return NT_STATUS_NO_MEMORY;
1293 }
1294 file_set_dosmode(conn, newname, fattr, &sbuf2, parent, false);
1295 TALLOC_FREE(parent);
1296
1297 if (ret < (SMB_OFF_T)sbuf1.st_size) {
1298 return NT_STATUS_DISK_FULL;
1299 }
1300
1301 if (!NT_STATUS_IS_OK(status)) {
1302 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1303 nt_errstr(status), oldname, newname));
1304 }
1305 return status;
1306 }
1307
1308 /****************************************************************************
1309 Reply to a NT rename request.
1310 ****************************************************************************/
1311
1312 void reply_ntrename(struct smb_request *req)
1313 {
1314 connection_struct *conn = req->conn;
1315 char *oldname = NULL;
1316 char *newname = NULL;
1317 const char *p;
1318 NTSTATUS status;
1319 bool src_has_wcard = False;
1320 bool dest_has_wcard = False;
1321 uint32 attrs;
1322 uint16 rename_type;
1323 TALLOC_CTX *ctx = talloc_tos();
1324
1325 START_PROFILE(SMBntrename);
1326
1327 if (req->wct < 4) {
1328 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1329 END_PROFILE(SMBntrename);
1330 return;
1331 }
1332
1333 attrs = SVAL(req->vwv+0, 0);
1334 rename_type = SVAL(req->vwv+1, 0);
1335
1336 p = (const char *)req->buf + 1;
1337 p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1338 &status, &src_has_wcard);
1339 if (!NT_STATUS_IS_OK(status)) {
1340 reply_nterror(req, status);
1341 END_PROFILE(SMBntrename);
1342 return;
1343 }
1344
1345 if (ms_has_wild(oldname)) {
1346 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1347 END_PROFILE(SMBntrename);
1348 return;
1349 }
1350
1351 p++;
1352 p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1353 &status, &dest_has_wcard);
1354 if (!NT_STATUS_IS_OK(status)) {
1355 reply_nterror(req, status);
1356 END_PROFILE(SMBntrename);
1357 return;
1358 }
1359
1360 status = resolve_dfspath(ctx, conn,
1361 req->flags2 & FLAGS2_DFS_PATHNAMES,
1362 oldname,
1363 &oldname);
1364 if (!NT_STATUS_IS_OK(status)) {
1365 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1366 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1367 ERRSRV, ERRbadpath);
1368 END_PROFILE(SMBntrename);
1369 return;
1370 }
1371 reply_nterror(req, status);
1372 END_PROFILE(SMBntrename);
1373 return;
1374 }
1375
1376 status = resolve_dfspath(ctx, conn,
1377 req->flags2 & FLAGS2_DFS_PATHNAMES,
1378 newname,
1379 &newname);
1380 if (!NT_STATUS_IS_OK(status)) {
1381 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1382 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1383 ERRSRV, ERRbadpath);
1384 END_PROFILE(SMBntrename);
1385 return;
1386 }
1387 reply_nterror(req, status);
1388 END_PROFILE(SMBntrename);
1389 return;
1390 }
1391
1392 /* The new name must begin with a ':' if the old name is a stream. */
1393 if (is_ntfs_stream_name(oldname) && (newname[0] != ':')) {
1394 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1395 END_PROFILE(SMBntrename);
1396 return;
1397 }
1398
1399 DEBUG(3,("reply_ntrename : %s -> %s\n",oldname,newname));
1400
1401 switch(rename_type) {
1402 case RENAME_FLAG_RENAME:
1403 status = rename_internals(ctx, conn, req, oldname,
1404 newname, attrs, False, src_has_wcard,
1405 dest_has_wcard, DELETE_ACCESS);
1406 break;
1407 case RENAME_FLAG_HARD_LINK:
1408 if (src_has_wcard || dest_has_wcard) {
1409 /* No wildcards. */
1410 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1411 } else {
1412 status = hardlink_internals(ctx,
1413 conn,
1414 oldname,
1415 newname);
1416 }
1417 break;
1418 case RENAME_FLAG_COPY:
1419 if (src_has_wcard || dest_has_wcard) {
1420 /* No wildcards. */
1421 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1422 } else {
1423 status = copy_internals(ctx, conn, req, oldname,
1424 newname, attrs);
1425 }
1426 break;
1427 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1428 status = NT_STATUS_INVALID_PARAMETER;
1429 break;
1430 default:
1431 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1432 break;
1433 }
1434
1435 if (!NT_STATUS_IS_OK(status)) {
1436 if (open_was_deferred(req->mid)) {
1437 /* We have re-scheduled this call. */
1438 END_PROFILE(SMBntrename);
1439 return;
1440 }
1441
1442 reply_nterror(req, status);
1443 END_PROFILE(SMBntrename);
1444 return;
1445 }
1446
1447 reply_outbuf(req, 0, 0);
1448
1449 END_PROFILE(SMBntrename);
1450 return;
1451 }
1452
1453 /****************************************************************************
1454 Reply to a notify change - queue the request and
1455 don't allow a directory to be opened.
1456 ****************************************************************************/
1457
1458 static void call_nt_transact_notify_change(connection_struct *conn,
1459 struct smb_request *req,
1460 uint16 **ppsetup,
1461 uint32 setup_count,
1462 char **ppparams,
1463 uint32 parameter_count,
1464 char **ppdata, uint32 data_count,
1465 uint32 max_data_count,
1466 uint32 max_param_count)
1467 {
1468 uint16 *setup = *ppsetup;
1469 files_struct *fsp;
1470 uint32 filter;
1471 NTSTATUS status;
1472 bool recursive;
1473
1474 if(setup_count < 6) {
1475 reply_doserror(req, ERRDOS, ERRbadfunc);
1476 return;
1477 }
1478
1479 fsp = file_fsp(req, SVAL(setup,4));
1480 filter = IVAL(setup, 0);
1481 recursive = (SVAL(setup, 6) != 0) ? True : False;
1482
1483 DEBUG(3,("call_nt_transact_notify_change\n"));
1484
1485 if(!fsp) {
1486 reply_doserror(req, ERRDOS, ERRbadfid);
1487 return;
1488 }
1489
1490 {
1491 char *filter_string;
1492
1493 if (!(filter_string = notify_filter_string(NULL, filter))) {
1494 reply_nterror(req,NT_STATUS_NO_MEMORY);
1495 return;
1496 }
1497
1498 DEBUG(3,("call_nt_transact_notify_change: notify change "
1499 "called on %s, filter = %s, recursive = %d\n",
1500 fsp->fsp_name, filter_string, recursive));
1501
1502 TALLOC_FREE(filter_string);
1503 }
1504
1505 if((!fsp->is_directory) || (conn != fsp->conn)) {
1506 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1507 return;
1508 }
1509
1510 if (fsp->notify == NULL) {
1511
1512 status = change_notify_create(fsp, filter, recursive);
1513
1514 if (!NT_STATUS_IS_OK(status)) {
1515 DEBUG(10, ("change_notify_create returned %s\n",
1516 nt_errstr(status)));
1517 reply_nterror(req, status);
1518 return;
1519 }
1520 }
1521
1522 if (fsp->notify->num_changes != 0) {
1523
1524 /*
1525 * We've got changes pending, respond immediately
1526 */
1527
1528 /*
1529 * TODO: write a torture test to check the filtering behaviour
1530 * here.
1531 */
1532
1533 change_notify_reply(fsp->conn, req, max_param_count,
1534 fsp->notify);
1535
1536 /*
1537 * change_notify_reply() above has independently sent its
1538 * results
1539 */
1540 return;
1541 }
1542
1543 /*
1544 * No changes pending, queue the request
1545 */
1546
1547 status = change_notify_add_request(req,
1548 max_param_count,
1549 filter,
1550 recursive, fsp);
1551 if (!NT_STATUS_IS_OK(status)) {
1552 reply_nterror(req, status);
1553 }
1554 return;
1555 }
1556
1557 /****************************************************************************
1558 Reply to an NT transact rename command.
1559 ****************************************************************************/
1560
1561 static void call_nt_transact_rename(connection_struct *conn,
1562 struct smb_request *req,
1563 uint16 **ppsetup, uint32 setup_count,
1564 char **ppparams, uint32 parameter_count,
1565 char **ppdata, uint32 data_count,
1566 uint32 max_data_count)
1567 {
1568 char *params = *ppparams;
1569 char *new_name = NULL;
1570 files_struct *fsp = NULL;
1571 bool dest_has_wcard = False;
1572 NTSTATUS status;
1573 TALLOC_CTX *ctx = talloc_tos();
1574
1575 if(parameter_count < 5) {
1576 reply_doserror(req, ERRDOS, ERRbadfunc);
1577 return;
1578 }
1579
1580 fsp = file_fsp(req, SVAL(params, 0));
1581 if (!check_fsp(conn, req, fsp)) {
1582 return;
1583 }
1584 srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1585 parameter_count - 4,
1586 STR_TERMINATE, &status, &dest_has_wcard);
1587 if (!NT_STATUS_IS_OK(status)) {
1588 reply_nterror(req, status);
1589 return;
1590 }
1591
1592 /*
1593 * W2K3 ignores this request as the RAW-RENAME test
1594 * demonstrates, so we do.
1595 */
1596 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1597
1598 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1599 fsp->fsp_name, new_name));
1600
1601 return;
1602 }
1603
1604 /******************************************************************************
1605 Fake up a completely empty SD.
1606 *******************************************************************************/
1607
1608 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
1609 {
1610 size_t sd_size;
1611
1612 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1613 if(!*ppsd) {
1614 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1615 return NT_STATUS_NO_MEMORY;
1616 }
1617
1618 return NT_STATUS_OK;
1619 }
1620
1621 /****************************************************************************
1622 Reply to query a security descriptor.
1623 ****************************************************************************/
1624
1625 static void call_nt_transact_query_security_desc(connection_struct *conn,
1626 struct smb_request *req,
1627 uint16 **ppsetup,
1628 uint32 setup_count,
1629 char **ppparams,
1630 uint32 parameter_count,
1631 char **ppdata,
1632 uint32 data_count,
1633 uint32 max_data_count)
1634 {
1635 char *params = *ppparams;
1636 char *data = *ppdata;
1637 SEC_DESC *psd = NULL;
1638 size_t sd_size;
1639 uint32 security_info_wanted;
1640 files_struct *fsp = NULL;
1641 NTSTATUS status;
1642 DATA_BLOB blob;
1643
1644 if(parameter_count < 8) {
1645 reply_doserror(req, ERRDOS, ERRbadfunc);
1646 return;
1647 }
1648
1649 fsp = file_fsp(req, SVAL(params,0));
1650 if(!fsp) {
1651 reply_doserror(req, ERRDOS, ERRbadfid);
1652 return;
1653 }
1654
1655 security_info_wanted = IVAL(params,4);
1656
1657 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, info_wanted = 0x%x\n", fsp->fsp_name,
1658 (unsigned int)security_info_wanted ));
1659
1660 params = nttrans_realloc(ppparams, 4);
1661 if(params == NULL) {
1662 reply_doserror(req, ERRDOS, ERRnomem);
1663 return;
1664 }
1665
1666 /*
1667 * Get the permissions to return.
1668 */
1669
1670 if (!lp_nt_acl_support(SNUM(conn))) {
1671 status = get_null_nt_acl(talloc_tos(), &psd);
1672 } else {
1673 status = SMB_VFS_FGET_NT_ACL(
1674 fsp, security_info_wanted, &psd);
1675 }
1676 if (!NT_STATUS_IS_OK(status)) {
1677 reply_nterror(req, status);
1678 return;
1679 }
1680
1681 /* If the SACL/DACL is NULL, but was requested, we mark that it is
1682 * present in the reply to match Windows behavior */
1683 if (psd->sacl == NULL &&
1684 security_info_wanted & SACL_SECURITY_INFORMATION)
1685 psd->type |= SEC_DESC_SACL_PRESENT;
1686 if (psd->dacl == NULL &&
1687 security_info_wanted & DACL_SECURITY_INFORMATION)
1688 psd->type |= SEC_DESC_DACL_PRESENT;
1689
1690 sd_size = ndr_size_security_descriptor(psd, NULL, 0);
1691
1692 DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %lu.\n",(unsigned long)sd_size));
1693
1694 if (DEBUGLEVEL >= 10) {
1695 DEBUG(10,("call_nt_transact_query_security_desc for file %s\n", fsp->fsp_name));
1696 NDR_PRINT_DEBUG(security_descriptor, psd);
1697 }
1698
1699 SIVAL(params,0,(uint32)sd_size);
1700
1701 if (max_data_count < sd_size) {
1702 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1703 params, 4, *ppdata, 0);
1704 return;
1705 }
1706
1707 /*
1708 * Allocate the data we will point this at.
1709 */
1710
1711 data = nttrans_realloc(ppdata, sd_size);
1712 if(data == NULL) {
1713 reply_doserror(req, ERRDOS, ERRnomem);
1714 return;
1715 }
1716
1717 status = marshall_sec_desc(talloc_tos(), psd,
1718 &blob.data, &blob.length);
1719
1720 if (!NT_STATUS_IS_OK(status)) {
1721 reply_nterror(req, status);
1722 return;
1723 }
1724
1725 SMB_ASSERT(sd_size == blob.length);
1726 memcpy(data, blob.data, sd_size);
1727
1728 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
1729
1730 return;
1731 }
1732
1733 /****************************************************************************
1734 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
1735 ****************************************************************************/
1736
1737 static void call_nt_transact_set_security_desc(connection_struct *conn,
1738 struct smb_request *req,
1739 uint16 **ppsetup,
1740 uint32 setup_count,
1741 char **ppparams,
1742 uint32 parameter_count,
1743 char **ppdata,
1744 uint32 data_count,
1745 uint32 max_data_count)
1746 {
1747 char *params= *ppparams;
1748 char *data = *ppdata;
1749 files_struct *fsp = NULL;
1750 uint32 security_info_sent = 0;
1751 NTSTATUS status;
1752
1753 if(parameter_count < 8) {
1754 reply_doserror(req, ERRDOS, ERRbadfunc);
1755 return;
1756 }
1757
1758 if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
1759 reply_doserror(req, ERRDOS, ERRbadfid);
1760 return;
1761 }
1762
1763 if(!lp_nt_acl_support(SNUM(conn))) {
1764 goto done;
1765 }
1766
1767 security_info_sent = IVAL(params,4);
1768
1769 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n", fsp->fsp_name,
1770 (unsigned int)security_info_sent ));
1771
1772 if (data_count == 0) {
1773 reply_doserror(req, ERRDOS, ERRnoaccess);
1774 return;
1775 }
1776
1777 status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
1778
1779 if (!NT_STATUS_IS_OK(status)) {
1780 reply_nterror(req, status);
1781 return;
1782 }
1783
1784 done:
1785 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1786 return;
1787 }
1788
1789 /****************************************************************************
1790 Reply to NT IOCTL
1791 ****************************************************************************/
1792
1793 static void call_nt_transact_ioctl(connection_struct *conn,
1794 struct smb_request *req,
1795 uint16 **ppsetup, uint32 setup_count,
1796 char **ppparams, uint32 parameter_count,
1797 char **ppdata, uint32 data_count,
1798 uint32 max_data_count)
1799 {
1800 uint32 function;
1801 uint16 fidnum;
1802 files_struct *fsp;
1803 uint8 isFSctl;
1804 uint8 compfilter;
1805 char *pdata = *ppdata;
1806
1807 if (setup_count != 8) {
1808 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
1809 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1810 return;
1811 }
1812
1813 function = IVAL(*ppsetup, 0);
1814 fidnum = SVAL(*ppsetup, 4);
1815 isFSctl = CVAL(*ppsetup, 6);
1816 compfilter = CVAL(*ppsetup, 7);
1817
1818 DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
1819 function, fidnum, isFSctl, compfilter));
1820
1821 fsp=file_fsp(req, fidnum);
1822 /* this check is done in each implemented function case for now
1823 because I don't want to break anything... --metze
1824 FSP_BELONGS_CONN(fsp,conn);*/
1825
1826 switch (function) {
1827 case FSCTL_SET_SPARSE:
1828 /* pretend this succeeded - tho strictly we should
1829 mark the file sparse (if the local fs supports it)
1830 so we can know if we need to pre-allocate or not */
1831
1832 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum));
1833 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1834 return;
1835
1836 case FSCTL_CREATE_OR_GET_OBJECT_ID:
1837 {
1838 unsigned char objid[16];
1839
1840 /* This should return the object-id on this file.
1841 * I think I'll make this be the inode+dev. JRA.
1842 */
1843
1844 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
1845
1846 if (!fsp_belongs_conn(conn, req, fsp)) {
1847 return;
1848 }
1849
1850 data_count = 64;
1851 pdata = nttrans_realloc(ppdata, data_count);
1852 if (pdata == NULL) {
1853 reply_nterror(req, NT_STATUS_NO_MEMORY);
1854 return;
1855 }
1856 push_file_id_16(pdata, &fsp->file_id);
1857 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
1858 push_file_id_16(pdata+32, &fsp->file_id);
1859 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
1860 pdata, data_count);
1861 return;
1862 }
1863
1864 case FSCTL_GET_REPARSE_POINT:
1865 /* pretend this fail - my winXP does it like this
1866 * --metze
1867 */
1868
1869 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1870 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1871 return;
1872
1873 case FSCTL_SET_REPARSE_POINT:
1874 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
1875 * --metze
1876 */
1877
1878 DEBUG(10,("FSCTL_SET_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_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
1883 {
1884 /*
1885 * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
1886 * and return their volume names. If max_data_count is 16, then it is just
1887 * asking for the number of volumes and length of the combined names.
1888 *
1889 * pdata is the data allocated by our caller, but that uses
1890 * total_data_count (which is 0 in our case) rather than max_data_count.
1891 * Allocate the correct amount and return the pointer to let
1892 * it be deallocated when we return.
1893 */
1894 SHADOW_COPY_DATA *shadow_data = NULL;
1895 TALLOC_CTX *shadow_mem_ctx = NULL;
1896 bool labels = False;
1897 uint32 labels_data_count = 0;
1898 uint32 i;
1899 char *cur_pdata;
1900
1901 if (!fsp_belongs_conn(conn, req, fsp)) {
1902 return;
1903 }
1904
1905 if (max_data_count < 16) {
1906 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
1907 max_data_count));
1908 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1909 return;
1910 }
1911
1912 if (max_data_count > 16) {
1913 labels = True;
1914 }
1915
1916 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
1917 if (shadow_mem_ctx == NULL) {
1918 DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
1919 reply_nterror(req, NT_STATUS_NO_MEMORY);
1920 return;
1921 }
1922
1923 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
1924 if (shadow_data == NULL) {
1925 DEBUG(0,("TALLOC_ZERO() failed!\n"));
1926 talloc_destroy(shadow_mem_ctx);
1927 reply_nterror(req, NT_STATUS_NO_MEMORY);
1928 return;
1929 }
1930
1931 shadow_data->mem_ctx = shadow_mem_ctx;
1932
1933 /*
1934 * Call the VFS routine to actually do the work.
1935 */
1936 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
1937 talloc_destroy(shadow_data->mem_ctx);
1938 if (errno == ENOSYS) {
1939 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
1940 conn->connectpath));
1941 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1942 return;
1943 } else {
1944 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
1945 conn->connectpath));
1946 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
1947 return;
1948 }
1949 }
1950
1951 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
1952
1953 if (!labels) {
1954 data_count = 16;
1955 } else {
1956 data_count = 12+labels_data_count+4;
1957 }
1958
1959 if (max_data_count<data_count) {
1960 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
1961 max_data_count,data_count));
1962 talloc_destroy(shadow_data->mem_ctx);
1963 reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
1964 return;
1965 }
1966
1967 pdata = nttrans_realloc(ppdata, data_count);
1968 if (pdata == NULL) {
1969 talloc_destroy(shadow_data->mem_ctx);
1970 reply_nterror(req, NT_STATUS_NO_MEMORY);
1971 return;
1972 }
1973
1974 cur_pdata = pdata;
1975
1976 /* num_volumes 4 bytes */
1977 SIVAL(pdata,0,shadow_data->num_volumes);
1978
1979 if (labels) {
1980 /* num_labels 4 bytes */
1981 SIVAL(pdata,4,shadow_data->num_volumes);
1982 }
1983
1984 /* needed_data_count 4 bytes */
1985 SIVAL(pdata,8,labels_data_count);
1986
1987 cur_pdata+=12;
1988
1989 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
1990 shadow_data->num_volumes,fsp->fsp_name));
1991 if (labels && shadow_data->labels) {
1992 for (i=0;i<shadow_data->num_volumes;i++) {
1993 srvstr_push(pdata, req->flags2,
1994 cur_pdata, shadow_data->labels[i],
1995 2*sizeof(SHADOW_COPY_LABEL),
1996 STR_UNICODE|STR_TERMINATE);
1997 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
1998 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
1999 }
2000 }
2001
2002 talloc_destroy(shadow_data->mem_ctx);
2003
2004 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2005 pdata, data_count);
2006
2007 return;
2008 }
2009
2010 case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
2011 {
2012 /* pretend this succeeded -
2013 *
2014 * we have to send back a list with all files owned by this SID
2015 *
2016 * but I have to check that --metze
2017 */
2018 DOM_SID sid;
2019 uid_t uid;
2020 size_t sid_len = MIN(data_count-4,SID_MAX_SIZE);
2021
2022 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
2023
2024 if (!fsp_belongs_conn(conn, req, fsp)) {
2025 return;
2026 }
2027
2028 /* unknown 4 bytes: this is not the length of the sid :-( */
2029 /*unknown = IVAL(pdata,0);*/
2030
2031 sid_parse(pdata+4,sid_len,&sid);
2032 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
2033
2034 if (!sid_to_uid(&sid, &uid)) {
2035 DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
2036 sid_string_dbg(&sid),
2037 (unsigned long)sid_len));
2038 uid = (-1);
2039 }
2040
2041 /* we can take a look at the find source :-)
2042 *
2043 * find ./ -uid $uid -name '*' is what we need here
2044 *
2045 *
2046 * and send 4bytes len and then NULL terminated unicode strings
2047 * for each file
2048 *
2049 * but I don't know how to deal with the paged results
2050 * (maybe we can hang the result anywhere in the fsp struct)
2051 *
2052 * we don't send all files at once
2053 * and at the next we should *not* start from the beginning,
2054 * so we have to cache the result
2055 *
2056 * --metze
2057 */
2058
2059 /* this works for now... */
2060 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2061 return;
2062 }
2063 default:
2064 if (!logged_ioctl_message) {
2065 logged_ioctl_message = true; /* Only print this once... */
2066 DEBUG(0,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n",
2067 function));
2068 }
2069 }
2070
2071 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2072 }
2073
2074
2075 #ifdef HAVE_SYS_QUOTAS
2076 /****************************************************************************
2077 Reply to get user quota
2078 ****************************************************************************/
2079
2080 static void call_nt_transact_get_user_quota(connection_struct *conn,
2081 struct smb_request *req,
2082 uint16 **ppsetup,
2083 uint32 setup_count,
2084 char **ppparams,
2085 uint32 parameter_count,
2086 char **ppdata,
2087 uint32 data_count,
2088 uint32 max_data_count)
2089 {
2090 NTSTATUS nt_status = NT_STATUS_OK;
2091 char *params = *ppparams;
2092 char *pdata = *ppdata;
2093 char *entry;
2094 int data_len=0,param_len=0;
2095 int qt_len=0;
2096 int entry_len = 0;
2097 files_struct *fsp = NULL;
2098 uint16 level = 0;
2099 size_t sid_len;
2100 DOM_SID sid;
2101 bool start_enum = True;
2102 SMB_NTQUOTA_STRUCT qt;
2103 SMB_NTQUOTA_LIST *tmp_list;
2104 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2105
2106 ZERO_STRUCT(qt);
2107
2108 /* access check */
2109 if (conn->server_info->utok.uid != 0) {
2110 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2111 "[%s]\n", lp_servicename(SNUM(conn)),
2112 conn->server_info->unix_name));
2113 reply_doserror(req, ERRDOS, ERRnoaccess);
2114 return;
2115 }
2116
2117 /*
2118 * Ensure minimum number of parameters sent.
2119 */
2120
2121 if (parameter_count < 4) {
2122 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2123 reply_doserror(req, ERRDOS, ERRinvalidparam);
2124 return;
2125 }
2126
2127 /* maybe we can check the quota_fnum */
2128 fsp = file_fsp(req, SVAL(params,0));
2129 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2130 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2131 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2132 return;
2133 }
2134
2135 /* the NULL pointer checking for fsp->fake_file_handle->pd
2136 * is done by CHECK_NTQUOTA_HANDLE_OK()
2137 */
2138 qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2139
2140 level = SVAL(params,2);
2141
2142 /* unknown 12 bytes leading in params */
2143
2144 switch (level) {
2145 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2146 /* seems that we should continue with the enum here --metze */
2147
2148 if (qt_handle->quota_list!=NULL &&
2149 qt_handle->tmp_list==NULL) {
2150
2151 /* free the list */
2152 free_ntquota_list(&(qt_handle->quota_list));
2153
2154 /* Realloc the size of parameters and data we will return */
2155 param_len = 4;
2156 params = nttrans_realloc(ppparams, param_len);
2157 if(params == NULL) {
2158 reply_doserror(req, ERRDOS, ERRnomem);
2159 return;
2160 }
2161
2162 data_len = 0;
2163 SIVAL(params,0,data_len);
2164
2165 break;
2166 }
2167
2168 start_enum = False;
2169
2170 case TRANSACT_GET_USER_QUOTA_LIST_START:
2171
2172 if (qt_handle->quota_list==NULL &&
2173 qt_handle->tmp_list==NULL) {
2174 start_enum = True;
2175 }
2176
2177 if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2178 reply_doserror(req, ERRSRV, ERRerror);
2179 return;
2180 }
2181
2182 /* Realloc the size of parameters and data we will return */
2183 param_len = 4;
2184 params = nttrans_realloc(ppparams, param_len);
2185 if(params == NULL) {
2186 reply_doserror(req, ERRDOS, ERRnomem);
2187 return;
2188 }
2189
2190 /* we should not trust the value in max_data_count*/
2191 max_data_count = MIN(max_data_count,2048);
2192
2193 pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2194 if(pdata == NULL) {
2195 reply_doserror(req, ERRDOS, ERRnomem);
2196 return;
2197 }
2198
2199 entry = pdata;
2200
2201 /* set params Size of returned Quota Data 4 bytes*/
2202 /* but set it later when we know it */
2203
2204 /* for each entry push the data */
2205
2206 if (start_enum) {
2207 qt_handle->tmp_list = qt_handle->quota_list;
2208 }
2209
2210 tmp_list = qt_handle->tmp_list;
2211
2212 for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2213 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2214
2215 sid_len = ndr_size_dom_sid(
2216 &tmp_list->quotas->sid, NULL, 0);
2217 entry_len = 40 + sid_len;
2218
2219 /* nextoffset entry 4 bytes */
2220 SIVAL(entry,0,entry_len);
2221
2222 /* then the len of the SID 4 bytes */
2223 SIVAL(entry,4,sid_len);
2224
2225 /* unknown data 8 bytes uint64_t */
2226 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2227
2228 /* the used disk space 8 bytes uint64_t */
2229 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2230
2231 /* the soft quotas 8 bytes uint64_t */
2232 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2233
2234 /* the hard quotas 8 bytes uint64_t */
2235 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2236
2237 /* and now the SID */
2238 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2239 }
2240
2241 qt_handle->tmp_list = tmp_list;
2242
2243 /* overwrite the offset of the last entry */
2244 SIVAL(entry-entry_len,0,0);
2245
2246 data_len = 4+qt_len;
2247 /* overwrite the params quota_data_len */
2248 SIVAL(params,0,data_len);
2249
2250 break;
2251
2252 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2253
2254 /* unknown 4 bytes IVAL(pdata,0) */
2255
2256 if (data_count < 8) {
2257 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2258 reply_doserror(req, ERRDOS, ERRunknownlevel);
2259 return;
2260 }
2261
2262 sid_len = IVAL(pdata,4);
2263 /* Ensure this is less than 1mb. */
2264 if (sid_len > (1024*1024)) {
2265 reply_doserror(req, ERRDOS, ERRnomem);
2266 return;
2267 }
2268
2269 if (data_count < 8+sid_len) {
2270 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2271 reply_doserror(req, ERRDOS, ERRunknownlevel);
2272 return;
2273 }
2274
2275 data_len = 4+40+sid_len;
2276
2277 if (max_data_count < data_len) {
2278 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2279 max_data_count, data_len));
2280 param_len = 4;
2281 SIVAL(params,0,data_len);
2282 data_len = 0;
2283 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2284 break;
2285 }
2286
2287 sid_parse(pdata+8,sid_len,&sid);
2288
2289 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2290 ZERO_STRUCT(qt);
2291 /*
2292 * we have to return zero's in all fields
2293 * instead of returning an error here
2294 * --metze
2295 */
2296 }
2297
2298 /* Realloc the size of parameters and data we will return */
2299 param_len = 4;
2300 params = nttrans_realloc(ppparams, param_len);
2301 if(params == NULL) {
2302 reply_doserror(req, ERRDOS, ERRnomem);
2303 return;
2304 }
2305
2306 pdata = nttrans_realloc(ppdata, data_len);
2307 if(pdata == NULL) {
2308 reply_doserror(req, ERRDOS, ERRnomem);
2309 return;
2310 }
2311
2312 entry = pdata;
2313
2314 /* set params Size of returned Quota Data 4 bytes*/
2315 SIVAL(params,0,data_len);
2316
2317 /* nextoffset entry 4 bytes */
2318 SIVAL(entry,0,0);
2319
2320 /* then the len of the SID 4 bytes */
2321 SIVAL(entry,4,sid_len);
2322
2323 /* unknown data 8 bytes uint64_t */
2324 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2325
2326 /* the used disk space 8 bytes uint64_t */
2327 SBIG_UINT(entry,16,qt.usedspace);
2328
2329 /* the soft quotas 8 bytes uint64_t */
2330 SBIG_UINT(entry,24,qt.softlim);
2331
2332 /* the hard quotas 8 bytes uint64_t */
2333 SBIG_UINT(entry,32,qt.hardlim);
2334
2335 /* and now the SID */
2336 sid_linearize(entry+40, sid_len, &sid);
2337
2338 break;
2339
2340 default:
2341 DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2342 reply_doserror(req, ERRSRV, ERRerror);
2343 return;
2344 break;
2345 }
2346
2347 send_nt_replies(conn, req, nt_status, params, param_len,
2348 pdata, data_len);
2349 }
2350
2351 /****************************************************************************
2352 Reply to set user quota
2353 ****************************************************************************/
2354
2355 static void call_nt_transact_set_user_quota(connection_struct *conn,
2356 struct smb_request *req,
2357 uint16 **ppsetup,
2358 uint32 setup_count,
2359 char **ppparams,
2360 uint32 parameter_count,
2361 char **ppdata,
2362 uint32 data_count,
2363 uint32 max_data_count)
2364 {
2365 char *params = *ppparams;
2366 char *pdata = *ppdata;
2367 int data_len=0,param_len=0;
2368 SMB_NTQUOTA_STRUCT qt;
2369 size_t sid_len;
2370 DOM_SID sid;
2371 files_struct *fsp = NULL;
2372
2373 ZERO_STRUCT(qt);
2374
2375 /* access check */
2376 if (conn->server_info->utok.uid != 0) {
2377 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2378 "[%s]\n", lp_servicename(SNUM(conn)),
2379 conn->server_info->unix_name));
2380 reply_doserror(req, ERRDOS, ERRnoaccess);
2381 return;
2382 }
2383
2384 /*
2385 * Ensure minimum number of parameters sent.
2386 */
2387
2388 if (parameter_count < 2) {
2389 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2390 reply_doserror(req, ERRDOS, ERRinvalidparam);
2391 return;
2392 }
2393
2394 /* maybe we can check the quota_fnum */
2395 fsp = file_fsp(req, SVAL(params,0));
2396 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2397 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2398 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2399 return;
2400 }
2401
2402 if (data_count < 40) {
2403 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2404 reply_doserror(req, ERRDOS, ERRunknownlevel);
2405 return;
2406 }
2407
2408 /* offset to next quota record.
2409 * 4 bytes IVAL(pdata,0)
2410 * unused here...
2411 */
2412
2413 /* sid len */
2414 sid_len = IVAL(pdata,4);
2415
2416 if (data_count < 40+sid_len) {
2417 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2418 reply_doserror(req, ERRDOS, ERRunknownlevel);
2419 return;
2420 }
2421
2422 /* unknown 8 bytes in pdata
2423 * maybe its the change time in NTTIME
2424 */
2425
2426 /* the used space 8 bytes (uint64_t)*/
2427 qt.usedspace = (uint64_t)IVAL(pdata,16);
2428 #ifdef LARGE_SMB_OFF_T
2429 qt.usedspace |= (((uint64_t)IVAL(pdata,20)) << 32);
2430 #else /* LARGE_SMB_OFF_T */
2431 if ((IVAL(pdata,20) != 0)&&
2432 ((qt.usedspace != 0xFFFFFFFF)||
2433 (IVAL(pdata,20)!=0xFFFFFFFF))) {
2434 /* more than 32 bits? */
2435 reply_doserror(req, ERRDOS, ERRunknownlevel);
2436 return;
2437 }
2438 #endif /* LARGE_SMB_OFF_T */
2439
2440 /* the soft quotas 8 bytes (uint64_t)*/
2441 qt.softlim = (uint64_t)IVAL(pdata,24);
2442 #ifdef LARGE_SMB_OFF_T
2443 qt.softlim |= (((uint64_t)IVAL(pdata,28)) << 32);
2444 #else /* LARGE_SMB_OFF_T */
2445 if ((IVAL(pdata,28) != 0)&&
2446 ((qt.softlim != 0xFFFFFFFF)||
2447 (IVAL(pdata,28)!=0xFFFFFFFF))) {
2448 /* more than 32 bits? */
2449 reply_doserror(req, ERRDOS, ERRunknownlevel);
2450 return;
2451 }
2452 #endif /* LARGE_SMB_OFF_T */
2453
2454 /* the hard quotas 8 bytes (uint64_t)*/
2455 qt.hardlim = (uint64_t)IVAL(pdata,32);
2456 #ifdef LARGE_SMB_OFF_T
2457 qt.hardlim |= (((uint64_t)IVAL(pdata,36)) << 32);
2458 #else /* LARGE_SMB_OFF_T */
2459 if ((IVAL(pdata,36) != 0)&&
2460 ((qt.hardlim != 0xFFFFFFFF)||
2461 (IVAL(pdata,36)!=0xFFFFFFFF))) {
2462 /* more than 32 bits? */
2463 reply_doserror(req, ERRDOS, ERRunknownlevel);
2464 return;
2465 }
2466 #endif /* LARGE_SMB_OFF_T */
2467
2468 sid_parse(pdata+40,sid_len,&sid);
2469 DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2470
2471 /* 44 unknown bytes left... */
2472
2473 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2474 reply_doserror(req, ERRSRV, ERRerror);
2475 return;
2476 }
2477
2478 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2479 pdata, data_len);
2480 }
2481 #endif /* HAVE_SYS_QUOTAS */
2482
2483 static void handle_nttrans(connection_struct *conn,
2484 struct trans_state *state,
2485 struct smb_request *req)
2486 {
2487 if (Protocol >= PROTOCOL_NT1) {
2488 req->flags2 |= 0x40; /* IS_LONG_NAME */
2489 SSVAL(req->inbuf,smb_flg2,req->flags2);
2490 }
2491
2492 /* Now we must call the relevant NT_TRANS function */
2493 switch(state->call) {
2494 case NT_TRANSACT_CREATE:
2495 {
2496 START_PROFILE(NT_transact_create);
2497 call_nt_transact_create(
2498 conn, req,
2499 &state->setup, state->setup_count,
2500 &state->param, state->total_param,
2501 &state->data, state->total_data,
2502 state->max_data_return);
2503 END_PROFILE(NT_transact_create);
2504 break;
2505 }
2506
2507 case NT_TRANSACT_IOCTL:
2508 {
2509 START_PROFILE(NT_transact_ioctl);
2510 call_nt_transact_ioctl(
2511 conn, req,
2512 &state->setup, state->setup_count,
2513 &state->param, state->total_param,
2514 &state->data, state->total_data,
2515 state->max_data_return);
2516 END_PROFILE(NT_transact_ioctl);
2517 break;
2518 }
2519
2520 case NT_TRANSACT_SET_SECURITY_DESC:
2521 {
2522 START_PROFILE(NT_transact_set_security_desc);
2523 call_nt_transact_set_security_desc(
2524 conn, req,
2525 &state->setup, state->setup_count,
2526 &state->param, state->total_param,
2527 &state->data, state->total_data,
2528 state->max_data_return);
2529 END_PROFILE(NT_transact_set_security_desc);
2530 break;
2531 }
2532
2533 case NT_TRANSACT_NOTIFY_CHANGE:
2534 {
2535 START_PROFILE(NT_transact_notify_change);
2536 call_nt_transact_notify_change(
2537 conn, req,
2538 &state->setup, state->setup_count,
2539 &state->param, state->total_param,
2540 &state->data, state->total_data,
2541 state->max_data_return,
2542 state->max_param_return);
2543 END_PROFILE(NT_transact_notify_change);
2544 break;
2545 }
2546
2547 case NT_TRANSACT_RENAME:
2548 {
2549 START_PROFILE(NT_transact_rename);
2550 call_nt_transact_rename(
2551 conn, req,
2552 &state->setup, state->setup_count,
2553 &state->param, state->total_param,
2554 &state->data, state->total_data,
2555 state->max_data_return);
2556 END_PROFILE(NT_transact_rename);
2557 break;
2558 }
2559
2560 case NT_TRANSACT_QUERY_SECURITY_DESC:
2561 {
2562 START_PROFILE(NT_transact_query_security_desc);
2563 call_nt_transact_query_security_desc(
2564 conn, req,
2565 &state->setup, state->setup_count,
2566 &state->param, state->total_param,
2567 &state->data, state->total_data,
2568 state->max_data_return);
2569 END_PROFILE(NT_transact_query_security_desc);
2570 break;
2571 }
2572
2573 #ifdef HAVE_SYS_QUOTAS
2574 case NT_TRANSACT_GET_USER_QUOTA:
2575 {
2576 START_PROFILE(NT_transact_get_user_quota);
2577 call_nt_transact_get_user_quota(
2578 conn, req,
2579 &state->setup, state->setup_count,
2580 &state->param, state->total_param,
2581 &state->data, state->total_data,
2582 state->max_data_return);
2583 END_PROFILE(NT_transact_get_user_quota);
2584 break;
2585 }
2586
2587 case NT_TRANSACT_SET_USER_QUOTA:
2588 {
2589 START_PROFILE(NT_transact_set_user_quota);
2590 call_nt_transact_set_user_quota(
2591 conn, req,
2592 &state->setup, state->setup_count,
2593 &state->param, state->total_param,
2594 &state->data, state->total_data,
2595 state->max_data_return);
2596 END_PROFILE(NT_transact_set_user_quota);
2597 break;
2598 }
2599 #endif /* HAVE_SYS_QUOTAS */
2600
2601 default:
2602 /* Error in request */
2603 DEBUG(0,("handle_nttrans: Unknown request %d in "
2604 "nttrans call\n", state->call));
2605 reply_doserror(req, ERRSRV, ERRerror);
2606 return;
2607 }
2608 return;
2609 }
2610
2611 /****************************************************************************
2612 Reply to a SMBNTtrans.
2613 ****************************************************************************/
2614
2615 void reply_nttrans(struct smb_request *req)
2616 {
2617 connection_struct *conn = req->conn;
2618 uint32_t pscnt;
2619 uint32_t psoff;
2620 uint32_t dscnt;
2621 uint32_t dsoff;
2622 uint16 function_code;
2623 NTSTATUS result;
2624 struct trans_state *state;
2625
2626 START_PROFILE(SMBnttrans);
2627
2628 if (req->wct < 19) {
2629 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2630 END_PROFILE(SMBnttrans);
2631 return;
2632 }
2633
2634 pscnt = IVAL(req->vwv+9, 1);
2635 psoff = IVAL(req->vwv+11, 1);
2636 dscnt = IVAL(req->vwv+13, 1);
2637 dsoff = IVAL(req->vwv+15, 1);
2638 function_code = SVAL(req->vwv+18, 0);
2639
2640 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2641 reply_doserror(req, ERRSRV, ERRaccess);
2642 END_PROFILE(SMBnttrans);
2643 return;
2644 }
2645
2646 result = allow_new_trans(conn->pending_trans, req->mid);
2647 if (!NT_STATUS_IS_OK(result)) {
2648 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2649 reply_nterror(req, result);
2650 END_PROFILE(SMBnttrans);
2651 return;
2652 }
2653
2654 if ((state = TALLOC_P(conn, struct trans_state)) == NULL) {
2655 reply_doserror(req, ERRSRV, ERRaccess);
2656 END_PROFILE(SMBnttrans);
2657 return;
2658 }
2659
2660 state->cmd = SMBnttrans;
2661
2662 state->mid = req->mid;
2663 state->vuid = req->vuid;
2664 state->total_data = IVAL(req->vwv+3, 1);
2665 state->data = NULL;
2666 state->total_param = IVAL(req->vwv+1, 1);
2667 state->param = NULL;
2668 state->max_data_return = IVAL(req->vwv+7, 1);
2669 state->max_param_return = IVAL(req->vwv+5, 1);
2670
2671 /* setup count is in *words* */
2672 state->setup_count = 2*CVAL(req->vwv+17, 1);
2673 state->setup = NULL;
2674 state->call = function_code;
2675
2676 DEBUG(10, ("num_setup=%u, "
2677 "param_total=%u, this_param=%u, max_param=%u, "
2678 "data_total=%u, this_data=%u, max_data=%u, "
2679 "param_offset=%u, data_offset=%u\n",
2680 (unsigned)state->setup_count,
2681 (unsigned)state->total_param, (unsigned)pscnt,
2682 (unsigned)state->max_param_return,
2683 (unsigned)state->total_data, (unsigned)dscnt,
2684 (unsigned)state->max_data_return,
2685 (unsigned)psoff, (unsigned)dsoff));
2686
2687 /*
2688 * All nttrans messages we handle have smb_wct == 19 +
2689 * state->setup_count. Ensure this is so as a sanity check.
2690 */
2691
2692 if(req->wct != 19 + (state->setup_count/2)) {
2693 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2694 req->wct, 19 + (state->setup_count/2)));
2695 goto bad_param;
2696 }
2697
2698 /* Don't allow more than 128mb for each value. */
2699 if ((state->total_data > (1024*1024*128)) ||
2700 (state->total_param > (1024*1024*128))) {
2701 reply_doserror(req, ERRDOS, ERRnomem);
2702 END_PROFILE(SMBnttrans);
2703 return;
2704 }
2705
2706 if ((dscnt > state->total_data) || (pscnt > state->total_param))
2707 goto bad_param;
2708
2709 if (state->total_data) {
2710
2711 if (trans_oob(state->total_data, 0, dscnt)
2712 || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
2713 goto bad_param;
2714 }
2715
2716 /* Can't use talloc here, the core routines do realloc on the
2717 * params and data. */
2718 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2719 DEBUG(0,("reply_nttrans: data malloc fail for %u "
2720 "bytes !\n", (unsigned int)state->total_data));
2721 TALLOC_FREE(state);
2722 reply_doserror(req, ERRDOS, ERRnomem);
2723 END_PROFILE(SMBnttrans);
2724 return;
2725 }
2726
2727 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2728 }
2729
2730 if (state->total_param) {
2731
2732 if (trans_oob(state->total_param, 0, pscnt)
2733 || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
2734 goto bad_param;
2735 }
2736
2737 /* Can't use talloc here, the core routines do realloc on the
2738 * params and data. */
2739 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2740 DEBUG(0,("reply_nttrans: param malloc fail for %u "
2741 "bytes !\n", (unsigned int)state->total_param));
2742 SAFE_FREE(state->data);
2743 TALLOC_FREE(state);
2744 reply_doserror(req, ERRDOS, ERRnomem);
2745 END_PROFILE(SMBnttrans);
2746 return;
2747 }
2748
2749 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2750 }
2751
2752 state->received_data = dscnt;
2753 state->received_param = pscnt;
2754
2755 if(state->setup_count > 0) {
2756 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2757 state->setup_count));
2758
2759 /*
2760 * No overflow possible here, state->setup_count is an
2761 * unsigned int, being filled by a single byte from
2762 * CVAL(req->vwv+13, 0) above. The cast in the comparison
2763 * below is not necessary, it's here to clarify things. The
2764 * validity of req->vwv and req->wct has been checked in
2765 * init_smb_request already.
2766 */
2767 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
2768 goto bad_param;
2769 }
2770
2771 state->setup = (uint16 *)TALLOC(state, state->setup_count);
2772 if (state->setup == NULL) {
2773 DEBUG(0,("reply_nttrans : Out of memory\n"));
2774 SAFE_FREE(state->data);
2775 SAFE_FREE(state->param);
2776 TALLOC_FREE(state);
2777 reply_doserror(req, ERRDOS, ERRnomem);
2778 END_PROFILE(SMBnttrans);
2779 return;
2780 }
2781
2782 memcpy(state->setup, req->vwv+19, state->setup_count);
2783 dump_data(10, (uint8 *)state->setup, state->setup_count);
2784 }
2785
2786 if ((state->received_data == state->total_data) &&
2787 (state->received_param == state->total_param)) {
2788 handle_nttrans(conn, state, req);
2789 SAFE_FREE(state->param);
2790 SAFE_FREE(state->data);
2791 TALLOC_FREE(state);
2792 END_PROFILE(SMBnttrans);
2793 return;
2794 }
2795
2796 DLIST_ADD(conn->pending_trans, state);
2797
2798 /* We need to send an interim response then receive the rest
2799 of the parameter/data bytes */
2800 reply_outbuf(req, 0, 0);
2801 show_msg((char *)req->outbuf);
2802 END_PROFILE(SMBnttrans);
2803 return;
2804
2805 bad_param:
2806
2807 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2808 SAFE_FREE(state->data);
2809 SAFE_FREE(state->param);
2810 TALLOC_FREE(state);
2811 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2812 END_PROFILE(SMBnttrans);
2813 return;
2814 }
2815
2816 /****************************************************************************
2817 Reply to a SMBnttranss
2818 ****************************************************************************/
2819
2820 void reply_nttranss(struct smb_request *req)
2821 {
2822 connection_struct *conn = req->conn;
2823 uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
2824 struct trans_state *state;
2825
2826 START_PROFILE(SMBnttranss);
2827
2828 show_msg((char *)req->inbuf);
2829
2830 if (req->wct < 18) {
2831 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2832 END_PROFILE(SMBnttranss);
2833 return;
2834 }
2835
2836 for (state = conn->pending_trans; state != NULL;
2837 state = state->next) {
2838 if (state->mid == req->mid) {
2839 break;
2840 }
2841 }
2842
2843 if ((state == NULL) || (state->cmd != SMBnttrans)) {
2844 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2845 END_PROFILE(SMBnttranss);
2846 return;
2847 }
2848
2849 /* Revise state->total_param and state->total_data in case they have
2850 changed downwards */
2851 if (IVAL(req->vwv+1, 1) < state->total_param) {
2852 state->total_param = IVAL(req->vwv+1, 1);
2853 }
2854 if (IVAL(req->vwv+3, 1) < state->total_data) {
2855 state->total_data = IVAL(req->vwv+3, 1);
2856 }
2857
2858 pcnt = IVAL(req->vwv+5, 1);
2859 poff = IVAL(req->vwv+7, 1);
2860 pdisp = IVAL(req->vwv+9, 1);
2861
2862 dcnt = IVAL(req->vwv+11, 1);
2863 doff = IVAL(req->vwv+13, 1);
2864 ddisp = IVAL(req->vwv+15, 1);
2865
2866 state->received_param += pcnt;
2867 state->received_data += dcnt;
2868
2869 if ((state->received_data > state->total_data) ||
2870 (state->received_param > state->total_param))
2871 goto bad_param;
2872
2873 if (pcnt) {
2874 if (trans_oob(state->total_param, pdisp, pcnt)
2875 || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
2876 goto bad_param;
2877 }
2878 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
2879 }
2880
2881 if (dcnt) {
2882 if (trans_oob(state->total_data, ddisp, dcnt)
2883 || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
2884 goto bad_param;
2885 }
2886 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
2887 }
2888
2889 if ((state->received_param < state->total_param) ||
2890 (state->received_data < state->total_data)) {
2891 END_PROFILE(SMBnttranss);
2892 return;
2893 }
2894
2895 handle_nttrans(conn, state, req);
2896
2897 DLIST_REMOVE(conn->pending_trans, state);
2898 SAFE_FREE(state->data);
2899 SAFE_FREE(state->param);
2900 TALLOC_FREE(state);
2901 END_PROFILE(SMBnttranss);
2902 return;
2903
2904 bad_param:
2905
2906 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
2907 DLIST_REMOVE(conn->pending_trans, state);
2908 SAFE_FREE(state->data);
2909 SAFE_FREE(state->param);
2910 TALLOC_FREE(state);
2911 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2912 END_PROFILE(SMBnttranss);
2913 return;
2914 }
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