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r23939: Fixes for notify returns. Returned param value must fix inside
[Samba.git] / source / smbd / nttrans.c
blob64b6d33eee1cd262e87b46f3d55772ffef210b8c
1 /*
2 Unix SMB/CIFS implementation.
3 SMB NT transaction handling
4 Copyright (C) Jeremy Allison 1994-1998
5 Copyright (C) Stefan (metze) Metzmacher 2003
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
19 */
20
21 #include "includes.h"
22
23 extern int max_send;
24 extern enum protocol_types Protocol;
25 extern int smb_read_error;
26 extern struct current_user current_user;
27
28 static const char *known_nt_pipes[] = {
29 "\\LANMAN",
30 "\\srvsvc",
31 "\\samr",
32 "\\wkssvc",
33 "\\NETLOGON",
34 "\\ntlsa",
35 "\\ntsvcs",
36 "\\lsass",
37 "\\lsarpc",
38 "\\winreg",
39 "\\initshutdown",
40 "\\spoolss",
41 "\\netdfs",
42 "\\rpcecho",
43 "\\svcctl",
44 "\\eventlog",
45 "\\unixinfo",
46 NULL
47 };
48
49 static char *nttrans_realloc(char **ptr, size_t size)
50 {
51 if (ptr==NULL) {
52 smb_panic("nttrans_realloc() called with NULL ptr");
53 }
54
55 *ptr = (char *)SMB_REALLOC(*ptr, size);
56 if(*ptr == NULL) {
57 return NULL;
58 }
59 memset(*ptr,'\0',size);
60 return *ptr;
61 }
62
63 /****************************************************************************
64 Send the required number of replies back.
65 We assume all fields other than the data fields are
66 set correctly for the type of call.
67 HACK ! Always assumes smb_setup field is zero.
68 ****************************************************************************/
69
70 int send_nt_replies(const char *inbuf,
71 char *outbuf,
72 int bufsize,
73 NTSTATUS nt_error,
74 char *params,
75 int paramsize,
76 char *pdata,
77 int datasize)
78 {
79 int data_to_send = datasize;
80 int params_to_send = paramsize;
81 int useable_space;
82 char *pp = params;
83 char *pd = pdata;
84 int params_sent_thistime, data_sent_thistime, total_sent_thistime;
85 int alignment_offset = 3;
86 int data_alignment_offset = 0;
87
88 /*
89 * Initially set the wcnt area to be 18 - this is true for all
90 * transNT replies.
91 */
92
93 set_message(inbuf,outbuf,18,0,True);
94
95 if (NT_STATUS_V(nt_error)) {
96 ERROR_NT(nt_error);
97 }
98
99 /*
100 * If there genuinely are no parameters or data to send just send
101 * the empty packet.
102 */
103
104 if(params_to_send == 0 && data_to_send == 0) {
105 show_msg(outbuf);
106 if (!send_smb(smbd_server_fd(),outbuf)) {
107 exit_server_cleanly("send_nt_replies: send_smb failed.");
108 }
109 return 0;
110 }
111
112 /*
113 * When sending params and data ensure that both are nicely aligned.
114 * Only do this alignment when there is also data to send - else
115 * can cause NT redirector problems.
116 */
117
118 if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
119 data_alignment_offset = 4 - (params_to_send % 4);
120 }
121
122 /*
123 * Space is bufsize minus Netbios over TCP header minus SMB header.
124 * The alignment_offset is to align the param bytes on a four byte
125 * boundary (2 bytes for data len, one byte pad).
126 * NT needs this to work correctly.
127 */
128
129 useable_space = bufsize - ((smb_buf(outbuf)+
130 alignment_offset+data_alignment_offset) -
131 outbuf);
132
133 /*
134 * useable_space can never be more than max_send minus the
135 * alignment offset.
136 */
137
138 useable_space = MIN(useable_space,
139 max_send - (alignment_offset+data_alignment_offset));
140
141
142 while (params_to_send || data_to_send) {
143
144 /*
145 * Calculate whether we will totally or partially fill this packet.
146 */
147
148 total_sent_thistime = params_to_send + data_to_send +
149 alignment_offset + data_alignment_offset;
150
151 /*
152 * We can never send more than useable_space.
153 */
154
155 total_sent_thistime = MIN(total_sent_thistime, useable_space);
156
157 set_message(inbuf,outbuf, 18, total_sent_thistime, True);
158
159 /*
160 * Set total params and data to be sent.
161 */
162
163 SIVAL(outbuf,smb_ntr_TotalParameterCount,paramsize);
164 SIVAL(outbuf,smb_ntr_TotalDataCount,datasize);
165
166 /*
167 * Calculate how many parameters and data we can fit into
168 * this packet. Parameters get precedence.
169 */
170
171 params_sent_thistime = MIN(params_to_send,useable_space);
172 data_sent_thistime = useable_space - params_sent_thistime;
173 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
174
175 SIVAL(outbuf,smb_ntr_ParameterCount,params_sent_thistime);
176
177 if(params_sent_thistime == 0) {
178 SIVAL(outbuf,smb_ntr_ParameterOffset,0);
179 SIVAL(outbuf,smb_ntr_ParameterDisplacement,0);
180 } else {
181 /*
182 * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
183 * parameter bytes, however the first 4 bytes of outbuf are
184 * the Netbios over TCP header. Thus use smb_base() to subtract
185 * them from the calculation.
186 */
187
188 SIVAL(outbuf,smb_ntr_ParameterOffset,
189 ((smb_buf(outbuf)+alignment_offset) - smb_base(outbuf)));
190 /*
191 * Absolute displacement of param bytes sent in this packet.
192 */
193
194 SIVAL(outbuf,smb_ntr_ParameterDisplacement,pp - params);
195 }
196
197 /*
198 * Deal with the data portion.
199 */
200
201 SIVAL(outbuf,smb_ntr_DataCount, data_sent_thistime);
202
203 if(data_sent_thistime == 0) {
204 SIVAL(outbuf,smb_ntr_DataOffset,0);
205 SIVAL(outbuf,smb_ntr_DataDisplacement, 0);
206 } else {
207 /*
208 * The offset of the data bytes is the offset of the
209 * parameter bytes plus the number of parameters being sent this time.
210 */
211
212 SIVAL(outbuf,smb_ntr_DataOffset,((smb_buf(outbuf)+alignment_offset) -
213 smb_base(outbuf)) + params_sent_thistime + data_alignment_offset);
214 SIVAL(outbuf,smb_ntr_DataDisplacement, pd - pdata);
215 }
216
217 /*
218 * Copy the param bytes into the packet.
219 */
220
221 if(params_sent_thistime) {
222 memcpy((smb_buf(outbuf)+alignment_offset),pp,params_sent_thistime);
223 }
224
225 /*
226 * Copy in the data bytes
227 */
228
229 if(data_sent_thistime) {
230 memcpy(smb_buf(outbuf)+alignment_offset+params_sent_thistime+
231 data_alignment_offset,pd,data_sent_thistime);
232 }
233
234 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
235 params_sent_thistime, data_sent_thistime, useable_space));
236 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
237 params_to_send, data_to_send, paramsize, datasize));
238
239 /* Send the packet */
240 show_msg(outbuf);
241 if (!send_smb(smbd_server_fd(),outbuf)) {
242 exit_server_cleanly("send_nt_replies: send_smb failed.");
243 }
244
245 pp += params_sent_thistime;
246 pd += data_sent_thistime;
247
248 params_to_send -= params_sent_thistime;
249 data_to_send -= data_sent_thistime;
250
251 /*
252 * Sanity check
253 */
254
255 if(params_to_send < 0 || data_to_send < 0) {
256 DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
257 params_to_send, data_to_send));
258 return -1;
259 }
260 }
261
262 return 0;
263 }
264
265 /****************************************************************************
266 Is it an NTFS stream name ?
267 ****************************************************************************/
268
269 BOOL is_ntfs_stream_name(const char *fname)
270 {
271 if (lp_posix_pathnames()) {
272 return False;
273 }
274 return (strchr_m(fname, ':') != NULL) ? True : False;
275 }
276
277 struct case_semantics_state {
278 connection_struct *conn;
279 BOOL case_sensitive;
280 BOOL case_preserve;
281 BOOL short_case_preserve;
282 };
283
284 /****************************************************************************
285 Restore case semantics.
286 ****************************************************************************/
287 static int restore_case_semantics(struct case_semantics_state *state)
288 {
289 state->conn->case_sensitive = state->case_sensitive;
290 state->conn->case_preserve = state->case_preserve;
291 state->conn->short_case_preserve = state->short_case_preserve;
292 return 0;
293 }
294
295 /****************************************************************************
296 Save case semantics.
297 ****************************************************************************/
298 static struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx,
299 connection_struct *conn)
300 {
301 struct case_semantics_state *result;
302
303 if (!(result = talloc(mem_ctx, struct case_semantics_state))) {
304 DEBUG(0, ("talloc failed\n"));
305 return NULL;
306 }
307
308 result->conn = conn;
309 result->case_sensitive = conn->case_sensitive;
310 result->case_preserve = conn->case_preserve;
311 result->short_case_preserve = conn->short_case_preserve;
312
313 /* Set to POSIX. */
314 conn->case_sensitive = True;
315 conn->case_preserve = True;
316 conn->short_case_preserve = True;
317
318 talloc_set_destructor(result, restore_case_semantics);
319
320 return result;
321 }
322
323 /****************************************************************************
324 Reply to an NT create and X call on a pipe.
325 ****************************************************************************/
326
327 static int nt_open_pipe(char *fname, connection_struct *conn,
328 char *inbuf, char *outbuf, int *ppnum)
329 {
330 smb_np_struct *p = NULL;
331 uint16 vuid = SVAL(inbuf, smb_uid);
332 int i;
333
334 DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
335
336 /* See if it is one we want to handle. */
337
338 if (lp_disable_spoolss() && strequal(fname, "\\spoolss")) {
339 return(ERROR_BOTH(NT_STATUS_OBJECT_NAME_NOT_FOUND,ERRDOS,ERRbadpipe));
340 }
341
342 for( i = 0; known_nt_pipes[i]; i++ ) {
343 if( strequal(fname,known_nt_pipes[i])) {
344 break;
345 }
346 }
347
348 if ( known_nt_pipes[i] == NULL ) {
349 return(ERROR_BOTH(NT_STATUS_OBJECT_NAME_NOT_FOUND,ERRDOS,ERRbadpipe));
350 }
351
352 /* Strip \\ off the name. */
353 fname++;
354
355 DEBUG(3,("nt_open_pipe: Known pipe %s opening.\n", fname));
356
357 p = open_rpc_pipe_p(fname, conn, vuid);
358 if (!p) {
359 return(ERROR_DOS(ERRSRV,ERRnofids));
360 }
361
362 /* TODO: Add pipe to db */
363
364 if ( !store_pipe_opendb( p ) ) {
365 DEBUG(3,("nt_open_pipe: failed to store %s pipe open.\n", fname));
366 }
367
368 *ppnum = p->pnum;
369 return 0;
370 }
371
372 /****************************************************************************
373 Reply to an NT create and X call for pipes.
374 ****************************************************************************/
375
376 static int do_ntcreate_pipe_open(connection_struct *conn,
377 char *inbuf,char *outbuf,int length,int bufsize)
378 {
379 pstring fname;
380 int ret;
381 int pnum = -1;
382 char *p = NULL;
383 uint32 flags = IVAL(inbuf,smb_ntcreate_Flags);
384
385 srvstr_pull_buf(inbuf, SVAL(inbuf, smb_flg2), fname, smb_buf(inbuf),
386 sizeof(fname), STR_TERMINATE);
387
388 if ((ret = nt_open_pipe(fname, conn, inbuf, outbuf, &pnum)) != 0) {
389 return ret;
390 }
391
392 /*
393 * Deal with pipe return.
394 */
395
396 if (flags & EXTENDED_RESPONSE_REQUIRED) {
397 /* This is very strange. We
398 * return 50 words, but only set
399 * the wcnt to 42 ? It's definately
400 * what happens on the wire....
401 */
402 set_message(inbuf,outbuf,50,0,True);
403 SCVAL(outbuf,smb_wct,42);
404 } else {
405 set_message(inbuf,outbuf,34,0,True);
406 }
407
408 p = outbuf + smb_vwv2;
409 p++;
410 SSVAL(p,0,pnum);
411 p += 2;
412 SIVAL(p,0,FILE_WAS_OPENED);
413 p += 4;
414 p += 32;
415 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
416 p += 20;
417 /* File type. */
418 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
419 /* Device state. */
420 SSVAL(p,2, 0x5FF); /* ? */
421 p += 4;
422
423 if (flags & EXTENDED_RESPONSE_REQUIRED) {
424 p += 25;
425 SIVAL(p,0,FILE_GENERIC_ALL);
426 /*
427 * For pipes W2K3 seems to return
428 * 0x12019B next.
429 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
430 */
431 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
432 }
433
434 DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
435
436 return chain_reply(inbuf,outbuf,length,bufsize);
437 }
438
439 /****************************************************************************
440 Reply to an NT create and X call for a quota file.
441 ****************************************************************************/
442
443 int reply_ntcreate_and_X_quota(connection_struct *conn,
444 char *inbuf,
445 char *outbuf,
446 int length,
447 int bufsize,
448 enum FAKE_FILE_TYPE fake_file_type,
449 const char *fname)
450 {
451 int result;
452 char *p;
453 uint32 desired_access = IVAL(inbuf,smb_ntcreate_DesiredAccess);
454 files_struct *fsp;
455 NTSTATUS status;
456
457 status = open_fake_file(conn, fake_file_type, fname, desired_access,
458 &fsp);
459
460 if (!NT_STATUS_IS_OK(status)) {
461 return ERROR_NT(status);
462 }
463
464 set_message(inbuf,outbuf,34,0,True);
465
466 p = outbuf + smb_vwv2;
467
468 /* SCVAL(p,0,NO_OPLOCK_RETURN); */
469 p++;
470 SSVAL(p,0,fsp->fnum);
471
472 DEBUG(5,("reply_ntcreate_and_X_quota: fnum = %d, open name = %s\n", fsp->fnum, fsp->fsp_name));
473
474 result = chain_reply(inbuf,outbuf,length,bufsize);
475 return result;
476 }
477
478 /****************************************************************************
479 Reply to an NT create and X call.
480 ****************************************************************************/
481
482 int reply_ntcreate_and_X(connection_struct *conn,
483 char *inbuf,char *outbuf,int length,int bufsize)
484 {
485 int result;
486 pstring fname;
487 uint32 flags = IVAL(inbuf,smb_ntcreate_Flags);
488 uint32 access_mask = IVAL(inbuf,smb_ntcreate_DesiredAccess);
489 uint32 file_attributes = IVAL(inbuf,smb_ntcreate_FileAttributes);
490 uint32 share_access = IVAL(inbuf,smb_ntcreate_ShareAccess);
491 uint32 create_disposition = IVAL(inbuf,smb_ntcreate_CreateDisposition);
492 uint32 create_options = IVAL(inbuf,smb_ntcreate_CreateOptions);
493 uint16 root_dir_fid = (uint16)IVAL(inbuf,smb_ntcreate_RootDirectoryFid);
494 /* Breakout the oplock request bits so we can set the
495 reply bits separately. */
496 int oplock_request = 0;
497 uint32 fattr=0;
498 SMB_OFF_T file_len = 0;
499 SMB_STRUCT_STAT sbuf;
500 int info = 0;
501 files_struct *fsp = NULL;
502 char *p = NULL;
503 struct timespec c_timespec;
504 struct timespec a_timespec;
505 struct timespec m_timespec;
506 BOOL extended_oplock_granted = False;
507 NTSTATUS status;
508 struct smb_request req;
509 struct case_semantics_state *case_state = NULL;
510
511 START_PROFILE(SMBntcreateX);
512
513 DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
514 "file_attributes = 0x%x, share_access = 0x%x, "
515 "create_disposition = 0x%x create_options = 0x%x "
516 "root_dir_fid = 0x%x\n",
517 (unsigned int)flags,
518 (unsigned int)access_mask,
519 (unsigned int)file_attributes,
520 (unsigned int)share_access,
521 (unsigned int)create_disposition,
522 (unsigned int)create_options,
523 (unsigned int)root_dir_fid ));
524
525 init_smb_request(&req, (uint8 *)inbuf);
526
527 /*
528 * If it's an IPC, use the pipe handler.
529 */
530
531 if (IS_IPC(conn)) {
532 if (lp_nt_pipe_support()) {
533 END_PROFILE(SMBntcreateX);
534 return do_ntcreate_pipe_open(conn,inbuf,outbuf,length,bufsize);
535 } else {
536 END_PROFILE(SMBntcreateX);
537 return(ERROR_DOS(ERRDOS,ERRnoaccess));
538 }
539 }
540
541 if (create_options & FILE_OPEN_BY_FILE_ID) {
542 END_PROFILE(SMBntcreateX);
543 return ERROR_NT(NT_STATUS_NOT_SUPPORTED);
544 }
545
546 /*
547 * Get the file name.
548 */
549
550 if(root_dir_fid != 0) {
551 /*
552 * This filename is relative to a directory fid.
553 */
554 pstring rel_fname;
555 files_struct *dir_fsp = file_fsp(inbuf,smb_ntcreate_RootDirectoryFid);
556 size_t dir_name_len;
557
558 if(!dir_fsp) {
559 END_PROFILE(SMBntcreateX);
560 return ERROR_DOS(ERRDOS,ERRbadfid);
561 }
562
563 if(!dir_fsp->is_directory) {
564
565 srvstr_get_path(inbuf, SVAL(inbuf,smb_flg2), fname,
566 smb_buf(inbuf), sizeof(fname), 0,
567 STR_TERMINATE, &status);
568 if (!NT_STATUS_IS_OK(status)) {
569 END_PROFILE(SMBntcreateX);
570 return ERROR_NT(status);
571 }
572
573 /*
574 * Check to see if this is a mac fork of some kind.
575 */
576
577 if( is_ntfs_stream_name(fname)) {
578 END_PROFILE(SMBntcreateX);
579 return ERROR_NT(NT_STATUS_OBJECT_PATH_NOT_FOUND);
580 }
581
582 /*
583 we need to handle the case when we get a
584 relative open relative to a file and the
585 pathname is blank - this is a reopen!
586 (hint from demyn plantenberg)
587 */
588
589 END_PROFILE(SMBntcreateX);
590 return(ERROR_DOS(ERRDOS,ERRbadfid));
591 }
592
593 /*
594 * Copy in the base directory name.
595 */
596
597 pstrcpy( fname, dir_fsp->fsp_name );
598 dir_name_len = strlen(fname);
599
600 /*
601 * Ensure it ends in a '\'.
602 */
603
604 if((fname[dir_name_len-1] != '\\') && (fname[dir_name_len-1] != '/')) {
605 pstrcat(fname, "/");
606 dir_name_len++;
607 }
608
609 srvstr_get_path(inbuf, SVAL(inbuf,smb_flg2), rel_fname,
610 smb_buf(inbuf), sizeof(rel_fname), 0,
611 STR_TERMINATE, &status);
612 if (!NT_STATUS_IS_OK(status)) {
613 END_PROFILE(SMBntcreateX);
614 return ERROR_NT(status);
615 }
616 pstrcat(fname, rel_fname);
617 } else {
618 srvstr_get_path(inbuf, SVAL(inbuf,smb_flg2), fname,
619 smb_buf(inbuf), sizeof(fname), 0,
620 STR_TERMINATE, &status);
621 if (!NT_STATUS_IS_OK(status)) {
622 END_PROFILE(SMBntcreateX);
623 return ERROR_NT(status);
624 }
625
626 /*
627 * Check to see if this is a mac fork of some kind.
628 */
629
630 if( is_ntfs_stream_name(fname)) {
631 enum FAKE_FILE_TYPE fake_file_type = is_fake_file(fname);
632 if (fake_file_type!=FAKE_FILE_TYPE_NONE) {
633 /*
634 * Here we go! support for changing the disk quotas --metze
635 *
636 * We need to fake up to open this MAGIC QUOTA file
637 * and return a valid FID.
638 *
639 * w2k close this file directly after openening
640 * xp also tries a QUERY_FILE_INFO on the file and then close it
641 */
642 result = reply_ntcreate_and_X_quota(conn, inbuf, outbuf, length, bufsize,
643 fake_file_type, fname);
644 END_PROFILE(SMBntcreateX);
645 return result;
646 } else {
647 END_PROFILE(SMBntcreateX);
648 return ERROR_NT(NT_STATUS_OBJECT_PATH_NOT_FOUND);
649 }
650 }
651 }
652
653 /*
654 * Now contruct the smb_open_mode value from the filename,
655 * desired access and the share access.
656 */
657 status = resolve_dfspath(conn, SVAL(inbuf,smb_flg2) & FLAGS2_DFS_PATHNAMES, fname);
658 if (!NT_STATUS_IS_OK(status)) {
659 END_PROFILE(SMBntcreateX);
660 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
661 return ERROR_BOTH(NT_STATUS_PATH_NOT_COVERED, ERRSRV, ERRbadpath);
662 }
663 return ERROR_NT(status);
664 }
665
666 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
667 if (oplock_request) {
668 oplock_request |= (flags & REQUEST_BATCH_OPLOCK) ? BATCH_OPLOCK : 0;
669 }
670
671 /*
672 * Ordinary file or directory.
673 */
674
675 /*
676 * Check if POSIX semantics are wanted.
677 */
678
679 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
680 case_state = set_posix_case_semantics(NULL, conn);
681 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
682 }
683
684 status = unix_convert(conn, fname, False, NULL, &sbuf);
685 if (!NT_STATUS_IS_OK(status)) {
686 TALLOC_FREE(case_state);
687 END_PROFILE(SMBntcreateX);
688 return ERROR_NT(status);
689 }
690 /* All file access must go through check_name() */
691 status = check_name(conn, fname);
692 if (!NT_STATUS_IS_OK(status)) {
693 TALLOC_FREE(case_state);
694 END_PROFILE(SMBntcreateX);
695 return ERROR_NT(status);
696 }
697
698 /* This is the correct thing to do (check every time) but can_delete is
699 expensive (it may have to read the parent directory permissions). So
700 for now we're not doing it unless we have a strong hint the client
701 is really going to delete this file. If the client is forcing FILE_CREATE
702 let the filesystem take care of the permissions. */
703
704 /* Setting FILE_SHARE_DELETE is the hint. */
705
706 if (lp_acl_check_permissions(SNUM(conn))
707 && (create_disposition != FILE_CREATE)
708 && (share_access & FILE_SHARE_DELETE)
709 && (access_mask & DELETE_ACCESS)) {
710 if ((dos_mode(conn, fname, &sbuf) & FILE_ATTRIBUTE_READONLY) ||
711 !can_delete_file_in_directory(conn, fname)) {
712 TALLOC_FREE(case_state);
713 END_PROFILE(SMBntcreateX);
714 return ERROR_NT(NT_STATUS_ACCESS_DENIED);
715 }
716 }
717
718 #if 0
719 /* We need to support SeSecurityPrivilege for this. */
720 if ((access_mask & SEC_RIGHT_SYSTEM_SECURITY) &&
721 !user_has_privileges(current_user.nt_user_token,
722 &se_security)) {
723 TALLOC_FREE(case_state);
724 END_PROFILE(SMBntcreateX);
725 return ERROR_NT(NT_STATUS_PRIVILEGE_NOT_HELD);
726 }
727 #endif
728
729 /*
730 * If it's a request for a directory open, deal with it separately.
731 */
732
733 if(create_options & FILE_DIRECTORY_FILE) {
734
735 /* Can't open a temp directory. IFS kit test. */
736 if (file_attributes & FILE_ATTRIBUTE_TEMPORARY) {
737 TALLOC_FREE(case_state);
738 END_PROFILE(SMBntcreateX);
739 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
740 }
741
742 oplock_request = 0;
743 status = open_directory(conn, &req, fname, &sbuf,
744 access_mask,
745 share_access,
746 create_disposition,
747 create_options,
748 file_attributes,
749 &info, &fsp);
750
751 TALLOC_FREE(case_state);
752
753 if(!NT_STATUS_IS_OK(status)) {
754 if (!use_nt_status() && NT_STATUS_EQUAL(
755 status, NT_STATUS_OBJECT_NAME_COLLISION)) {
756 status = NT_STATUS_DOS(ERRDOS, ERRfilexists);
757 }
758 END_PROFILE(SMBntcreateX);
759 return ERROR_NT(status);
760 }
761
762 } else {
763
764 /*
765 * Ordinary file case.
766 */
767
768 /* NB. We have a potential bug here. If we
769 * cause an oplock break to ourselves, then we
770 * could end up processing filename related
771 * SMB requests whilst we await the oplock
772 * break response. As we may have changed the
773 * filename case semantics to be POSIX-like,
774 * this could mean a filename request could
775 * fail when it should succeed. This is a rare
776 * condition, but eventually we must arrange
777 * to restore the correct case semantics
778 * before issuing an oplock break request to
779 * our client. JRA. */
780
781 status = open_file_ntcreate(conn, &req, fname, &sbuf,
782 access_mask,
783 share_access,
784 create_disposition,
785 create_options,
786 file_attributes,
787 oplock_request,
788 &info, &fsp);
789
790 if (!NT_STATUS_IS_OK(status)) {
791 /* We cheat here. There are two cases we
792 * care about. One is a directory rename,
793 * where the NT client will attempt to
794 * open the source directory for
795 * DELETE access. Note that when the
796 * NT client does this it does *not*
797 * set the directory bit in the
798 * request packet. This is translated
799 * into a read/write open
800 * request. POSIX states that any open
801 * for write request on a directory
802 * will generate an EISDIR error, so
803 * we can catch this here and open a
804 * pseudo handle that is flagged as a
805 * directory. The second is an open
806 * for a permissions read only, which
807 * we handle in the open_file_stat case. JRA.
808 */
809
810 if (NT_STATUS_EQUAL(status,
811 NT_STATUS_FILE_IS_A_DIRECTORY)) {
812
813 /*
814 * Fail the open if it was explicitly a non-directory file.
815 */
816
817 if (create_options & FILE_NON_DIRECTORY_FILE) {
818 TALLOC_FREE(case_state);
819 END_PROFILE(SMBntcreateX);
820 return ERROR_FORCE_NT(NT_STATUS_FILE_IS_A_DIRECTORY);
821 }
822
823 oplock_request = 0;
824 status = open_directory(conn, &req, fname,
825 &sbuf,
826 access_mask,
827 share_access,
828 create_disposition,
829 create_options,
830 file_attributes,
831 &info, &fsp);
832
833 if(!NT_STATUS_IS_OK(status)) {
834 TALLOC_FREE(case_state);
835 if (!use_nt_status() && NT_STATUS_EQUAL(
836 status, NT_STATUS_OBJECT_NAME_COLLISION)) {
837 status = NT_STATUS_DOS(ERRDOS, ERRfilexists);
838 }
839 END_PROFILE(SMBntcreateX);
840 return ERROR_NT(status);
841 }
842 } else {
843 TALLOC_FREE(case_state);
844 END_PROFILE(SMBntcreateX);
845 if (open_was_deferred(SVAL(inbuf,smb_mid))) {
846 /* We have re-scheduled this call. */
847 return -1;
848 }
849 return ERROR_NT(status);
850 }
851 }
852 }
853
854 TALLOC_FREE(case_state);
855
856 file_len = sbuf.st_size;
857 fattr = dos_mode(conn,fname,&sbuf);
858 if(fattr == 0) {
859 fattr = FILE_ATTRIBUTE_NORMAL;
860 }
861 if (!fsp->is_directory && (fattr & aDIR)) {
862 close_file(fsp,ERROR_CLOSE);
863 END_PROFILE(SMBntcreateX);
864 return ERROR_DOS(ERRDOS,ERRnoaccess);
865 }
866
867 /* Save the requested allocation size. */
868 if ((info == FILE_WAS_CREATED) || (info == FILE_WAS_OVERWRITTEN)) {
869 SMB_BIG_UINT allocation_size = (SMB_BIG_UINT)IVAL(inbuf,smb_ntcreate_AllocationSize);
870 #ifdef LARGE_SMB_OFF_T
871 allocation_size |= (((SMB_BIG_UINT)IVAL(inbuf,smb_ntcreate_AllocationSize + 4)) << 32);
872 #endif
873 if (allocation_size && (allocation_size > (SMB_BIG_UINT)file_len)) {
874 fsp->initial_allocation_size = smb_roundup(fsp->conn, allocation_size);
875 if (fsp->is_directory) {
876 close_file(fsp,ERROR_CLOSE);
877 END_PROFILE(SMBntcreateX);
878 /* Can't set allocation size on a directory. */
879 return ERROR_NT(NT_STATUS_ACCESS_DENIED);
880 }
881 if (vfs_allocate_file_space(fsp, fsp->initial_allocation_size) == -1) {
882 close_file(fsp,ERROR_CLOSE);
883 END_PROFILE(SMBntcreateX);
884 return ERROR_NT(NT_STATUS_DISK_FULL);
885 }
886 } else {
887 fsp->initial_allocation_size = smb_roundup(fsp->conn,(SMB_BIG_UINT)file_len);
888 }
889 }
890
891 /*
892 * If the caller set the extended oplock request bit
893 * and we granted one (by whatever means) - set the
894 * correct bit for extended oplock reply.
895 */
896
897 if (oplock_request && lp_fake_oplocks(SNUM(conn))) {
898 extended_oplock_granted = True;
899 }
900
901 if(oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
902 extended_oplock_granted = True;
903 }
904
905 if (flags & EXTENDED_RESPONSE_REQUIRED) {
906 /* This is very strange. We
907 * return 50 words, but only set
908 * the wcnt to 42 ? It's definately
909 * what happens on the wire....
910 */
911 set_message(inbuf,outbuf,50,0,True);
912 SCVAL(outbuf,smb_wct,42);
913 } else {
914 set_message(inbuf,outbuf,34,0,True);
915 }
916
917 p = outbuf + smb_vwv2;
918
919 /*
920 * Currently as we don't support level II oplocks we just report
921 * exclusive & batch here.
922 */
923
924 if (extended_oplock_granted) {
925 if (flags & REQUEST_BATCH_OPLOCK) {
926 SCVAL(p,0, BATCH_OPLOCK_RETURN);
927 } else {
928 SCVAL(p,0, EXCLUSIVE_OPLOCK_RETURN);
929 }
930 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
931 SCVAL(p,0, LEVEL_II_OPLOCK_RETURN);
932 } else {
933 SCVAL(p,0,NO_OPLOCK_RETURN);
934 }
935
936 p++;
937 SSVAL(p,0,fsp->fnum);
938 p += 2;
939 if ((create_disposition == FILE_SUPERSEDE) && (info == FILE_WAS_OVERWRITTEN)) {
940 SIVAL(p,0,FILE_WAS_SUPERSEDED);
941 } else {
942 SIVAL(p,0,info);
943 }
944 p += 4;
945
946 /* Create time. */
947 c_timespec = get_create_timespec(&sbuf,lp_fake_dir_create_times(SNUM(conn)));
948 a_timespec = get_atimespec(&sbuf);
949 m_timespec = get_mtimespec(&sbuf);
950
951 if (lp_dos_filetime_resolution(SNUM(conn))) {
952 dos_filetime_timespec(&c_timespec);
953 dos_filetime_timespec(&a_timespec);
954 dos_filetime_timespec(&m_timespec);
955 }
956
957 put_long_date_timespec(p, c_timespec); /* create time. */
958 p += 8;
959 put_long_date_timespec(p, a_timespec); /* access time */
960 p += 8;
961 put_long_date_timespec(p, m_timespec); /* write time */
962 p += 8;
963 put_long_date_timespec(p, m_timespec); /* change time */
964 p += 8;
965 SIVAL(p,0,fattr); /* File Attributes. */
966 p += 4;
967 SOFF_T(p, 0, get_allocation_size(conn,fsp,&sbuf));
968 p += 8;
969 SOFF_T(p,0,file_len);
970 p += 8;
971 if (flags & EXTENDED_RESPONSE_REQUIRED) {
972 SSVAL(p,2,0x7);
973 }
974 p += 4;
975 SCVAL(p,0,fsp->is_directory ? 1 : 0);
976
977 if (flags & EXTENDED_RESPONSE_REQUIRED) {
978 uint32 perms = 0;
979 p += 25;
980 if (fsp->is_directory || can_write_to_file(conn, fname, &sbuf)) {
981 perms = FILE_GENERIC_ALL;
982 } else {
983 perms = FILE_GENERIC_READ|FILE_EXECUTE;
984 }
985 SIVAL(p,0,perms);
986 }
987
988 DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n", fsp->fnum, fsp->fsp_name));
989
990 result = chain_reply(inbuf,outbuf,length,bufsize);
991 END_PROFILE(SMBntcreateX);
992 return result;
993 }
994
995 /****************************************************************************
996 Reply to a NT_TRANSACT_CREATE call to open a pipe.
997 ****************************************************************************/
998
999 static int do_nt_transact_create_pipe( connection_struct *conn, char *inbuf, char *outbuf, int length, int bufsize,
1000 uint16 **ppsetup, uint32 setup_count,
1001 char **ppparams, uint32 parameter_count,
1002 char **ppdata, uint32 data_count)
1003 {
1004 pstring fname;
1005 char *params = *ppparams;
1006 int ret;
1007 int pnum = -1;
1008 char *p = NULL;
1009 NTSTATUS status;
1010 size_t param_len;
1011 uint32 flags;
1012
1013 /*
1014 * Ensure minimum number of parameters sent.
1015 */
1016
1017 if(parameter_count < 54) {
1018 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1019 return ERROR_DOS(ERRDOS,ERRnoaccess);
1020 }
1021
1022 flags = IVAL(params,0);
1023
1024 srvstr_get_path(inbuf, SVAL(inbuf,smb_flg2), fname, params+53,
1025 sizeof(fname), parameter_count-53, STR_TERMINATE,
1026 &status);
1027 if (!NT_STATUS_IS_OK(status)) {
1028 return ERROR_NT(status);
1029 }
1030
1031 if ((ret = nt_open_pipe(fname, conn, inbuf, outbuf, &pnum)) != 0) {
1032 return ret;
1033 }
1034
1035 /* Realloc the size of parameters and data we will return */
1036 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1037 /* Extended response is 32 more byyes. */
1038 param_len = 101;
1039 } else {
1040 param_len = 69;
1041 }
1042 params = nttrans_realloc(ppparams, param_len);
1043 if(params == NULL) {
1044 return ERROR_DOS(ERRDOS,ERRnomem);
1045 }
1046
1047 p = params;
1048 SCVAL(p,0,NO_OPLOCK_RETURN);
1049
1050 p += 2;
1051 SSVAL(p,0,pnum);
1052 p += 2;
1053 SIVAL(p,0,FILE_WAS_OPENED);
1054 p += 8;
1055
1056 p += 32;
1057 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
1058 p += 20;
1059 /* File type. */
1060 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
1061 /* Device state. */
1062 SSVAL(p,2, 0x5FF); /* ? */
1063 p += 4;
1064
1065 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1066 p += 25;
1067 SIVAL(p,0,FILE_GENERIC_ALL);
1068 /*
1069 * For pipes W2K3 seems to return
1070 * 0x12019B next.
1071 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
1072 */
1073 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
1074 }
1075
1076 DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
1077
1078 /* Send the required number of replies */
1079 send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, params, param_len, *ppdata, 0);
1080
1081 return -1;
1082 }
1083
1084 /****************************************************************************
1085 Internal fn to set security descriptors.
1086 ****************************************************************************/
1087
1088 static NTSTATUS set_sd(files_struct *fsp, char *data, uint32 sd_len, uint32 security_info_sent)
1089 {
1090 prs_struct pd;
1091 SEC_DESC *psd = NULL;
1092 TALLOC_CTX *mem_ctx;
1093 NTSTATUS status;
1094
1095 if (sd_len == 0 || !lp_nt_acl_support(SNUM(fsp->conn))) {
1096 return NT_STATUS_OK;
1097 }
1098
1099 /*
1100 * Init the parse struct we will unmarshall from.
1101 */
1102
1103 if ((mem_ctx = talloc_init("set_sd")) == NULL) {
1104 DEBUG(0,("set_sd: talloc_init failed.\n"));
1105 return NT_STATUS_NO_MEMORY;
1106 }
1107
1108 prs_init(&pd, 0, mem_ctx, UNMARSHALL);
1109
1110 /*
1111 * Setup the prs_struct to point at the memory we just
1112 * allocated.
1113 */
1114
1115 prs_give_memory( &pd, data, sd_len, False);
1116
1117 /*
1118 * Finally, unmarshall from the data buffer.
1119 */
1120
1121 if(!sec_io_desc( "sd data", &psd, &pd, 1)) {
1122 DEBUG(0,("set_sd: Error in unmarshalling security descriptor.\n"));
1123 /*
1124 * Return access denied for want of a better error message..
1125 */
1126 talloc_destroy(mem_ctx);
1127 return NT_STATUS_NO_MEMORY;
1128 }
1129
1130 if (psd->owner_sid==0) {
1131 security_info_sent &= ~OWNER_SECURITY_INFORMATION;
1132 }
1133 if (psd->group_sid==0) {
1134 security_info_sent &= ~GROUP_SECURITY_INFORMATION;
1135 }
1136 if (psd->sacl==0) {
1137 security_info_sent &= ~SACL_SECURITY_INFORMATION;
1138 }
1139 if (psd->dacl==0) {
1140 security_info_sent &= ~DACL_SECURITY_INFORMATION;
1141 }
1142
1143 status = SMB_VFS_FSET_NT_ACL( fsp, fsp->fh->fd, security_info_sent, psd);
1144
1145 talloc_destroy(mem_ctx);
1146 return status;
1147 }
1148
1149 /****************************************************************************
1150 Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
1151 ****************************************************************************/
1152
1153 static struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
1154 {
1155 struct ea_list *ea_list_head = NULL;
1156 size_t offset = 0;
1157
1158 if (data_size < 4) {
1159 return NULL;
1160 }
1161
1162 while (offset + 4 <= data_size) {
1163 size_t next_offset = IVAL(pdata,offset);
1164 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
1165
1166 if (!eal) {
1167 return NULL;
1168 }
1169
1170 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
1171 if (next_offset == 0) {
1172 break;
1173 }
1174 offset += next_offset;
1175 }
1176
1177 return ea_list_head;
1178 }
1179
1180 /****************************************************************************
1181 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
1182 ****************************************************************************/
1183
1184 static int call_nt_transact_create(connection_struct *conn, char *inbuf, char *outbuf, int length, int bufsize,
1185 uint16 **ppsetup, uint32 setup_count,
1186 char **ppparams, uint32 parameter_count,
1187 char **ppdata, uint32 data_count, uint32 max_data_count)
1188 {
1189 pstring fname;
1190 char *params = *ppparams;
1191 char *data = *ppdata;
1192 /* Breakout the oplock request bits so we can set the reply bits separately. */
1193 int oplock_request = 0;
1194 uint32 fattr=0;
1195 SMB_OFF_T file_len = 0;
1196 SMB_STRUCT_STAT sbuf;
1197 int info = 0;
1198 files_struct *fsp = NULL;
1199 char *p = NULL;
1200 BOOL extended_oplock_granted = False;
1201 uint32 flags;
1202 uint32 access_mask;
1203 uint32 file_attributes;
1204 uint32 share_access;
1205 uint32 create_disposition;
1206 uint32 create_options;
1207 uint32 sd_len;
1208 uint32 ea_len;
1209 uint16 root_dir_fid;
1210 struct timespec c_timespec;
1211 struct timespec a_timespec;
1212 struct timespec m_timespec;
1213 struct ea_list *ea_list = NULL;
1214 TALLOC_CTX *ctx = NULL;
1215 char *pdata = NULL;
1216 NTSTATUS status;
1217 size_t param_len;
1218 struct smb_request req;
1219 struct case_semantics_state *case_state = NULL;
1220
1221 DEBUG(5,("call_nt_transact_create\n"));
1222
1223 /*
1224 * If it's an IPC, use the pipe handler.
1225 */
1226
1227 if (IS_IPC(conn)) {
1228 if (lp_nt_pipe_support()) {
1229 return do_nt_transact_create_pipe(conn, inbuf, outbuf, length,
1230 bufsize,
1231 ppsetup, setup_count,
1232 ppparams, parameter_count,
1233 ppdata, data_count);
1234 } else {
1235 return ERROR_DOS(ERRDOS,ERRnoaccess);
1236 }
1237 }
1238
1239 /*
1240 * Ensure minimum number of parameters sent.
1241 */
1242
1243 if(parameter_count < 54) {
1244 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1245 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
1246 }
1247
1248 init_smb_request(&req, (uint8 *)inbuf);
1249
1250 flags = IVAL(params,0);
1251 access_mask = IVAL(params,8);
1252 file_attributes = IVAL(params,20);
1253 share_access = IVAL(params,24);
1254 create_disposition = IVAL(params,28);
1255 create_options = IVAL(params,32);
1256 sd_len = IVAL(params,36);
1257 ea_len = IVAL(params,40);
1258 root_dir_fid = (uint16)IVAL(params,4);
1259
1260 /* Ensure the data_len is correct for the sd and ea values given. */
1261 if ((ea_len + sd_len > data_count) ||
1262 (ea_len > data_count) || (sd_len > data_count) ||
1263 (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
1264 DEBUG(10,("call_nt_transact_create - ea_len = %u, sd_len = %u, data_count = %u\n",
1265 (unsigned int)ea_len, (unsigned int)sd_len, (unsigned int)data_count ));
1266 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
1267 }
1268
1269 if (ea_len) {
1270 if (!lp_ea_support(SNUM(conn))) {
1271 DEBUG(10,("call_nt_transact_create - ea_len = %u but EA's not supported.\n",
1272 (unsigned int)ea_len ));
1273 return ERROR_NT(NT_STATUS_EAS_NOT_SUPPORTED);
1274 }
1275
1276 if (ea_len < 10) {
1277 DEBUG(10,("call_nt_transact_create - ea_len = %u - too small (should be more than 10)\n",
1278 (unsigned int)ea_len ));
1279 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
1280 }
1281 }
1282
1283 if (create_options & FILE_OPEN_BY_FILE_ID) {
1284 return ERROR_NT(NT_STATUS_NOT_SUPPORTED);
1285 }
1286
1287 /*
1288 * Get the file name.
1289 */
1290
1291 if(root_dir_fid != 0) {
1292 /*
1293 * This filename is relative to a directory fid.
1294 */
1295 files_struct *dir_fsp = file_fsp(params,4);
1296 size_t dir_name_len;
1297
1298 if(!dir_fsp) {
1299 return ERROR_DOS(ERRDOS,ERRbadfid);
1300 }
1301
1302 if(!dir_fsp->is_directory) {
1303 srvstr_get_path(inbuf, SVAL(inbuf,smb_flg2), fname,
1304 params+53, sizeof(fname),
1305 parameter_count-53, STR_TERMINATE,
1306 &status);
1307 if (!NT_STATUS_IS_OK(status)) {
1308 return ERROR_NT(status);
1309 }
1310
1311 /*
1312 * Check to see if this is a mac fork of some kind.
1313 */
1314
1315 if( is_ntfs_stream_name(fname)) {
1316 return ERROR_NT(NT_STATUS_OBJECT_PATH_NOT_FOUND);
1317 }
1318
1319 return ERROR_DOS(ERRDOS,ERRbadfid);
1320 }
1321
1322 /*
1323 * Copy in the base directory name.
1324 */
1325
1326 pstrcpy( fname, dir_fsp->fsp_name );
1327 dir_name_len = strlen(fname);
1328
1329 /*
1330 * Ensure it ends in a '\'.
1331 */
1332
1333 if((fname[dir_name_len-1] != '\\') && (fname[dir_name_len-1] != '/')) {
1334 pstrcat(fname, "/");
1335 dir_name_len++;
1336 }
1337
1338 {
1339 pstring tmpname;
1340 srvstr_get_path(inbuf, SVAL(inbuf,smb_flg2), tmpname,
1341 params+53, sizeof(tmpname),
1342 parameter_count-53, STR_TERMINATE,
1343 &status);
1344 if (!NT_STATUS_IS_OK(status)) {
1345 return ERROR_NT(status);
1346 }
1347 pstrcat(fname, tmpname);
1348 }
1349 } else {
1350 srvstr_get_path(inbuf, SVAL(inbuf,smb_flg2), fname, params+53,
1351 sizeof(fname), parameter_count-53,
1352 STR_TERMINATE, &status);
1353 if (!NT_STATUS_IS_OK(status)) {
1354 return ERROR_NT(status);
1355 }
1356
1357 /*
1358 * Check to see if this is a mac fork of some kind.
1359 */
1360
1361 if( is_ntfs_stream_name(fname)) {
1362 return ERROR_NT(NT_STATUS_OBJECT_PATH_NOT_FOUND);
1363 }
1364 }
1365
1366 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1367 if (oplock_request) {
1368 oplock_request |= (flags & REQUEST_BATCH_OPLOCK) ? BATCH_OPLOCK : 0;
1369 }
1370
1371 /*
1372 * Ordinary file or directory.
1373 */
1374
1375 /*
1376 * Check if POSIX semantics are wanted.
1377 */
1378
1379 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
1380 case_state = set_posix_case_semantics(NULL, conn);
1381 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
1382 }
1383
1384 status = resolve_dfspath(conn, SVAL(inbuf,smb_flg2) & FLAGS2_DFS_PATHNAMES, fname);
1385 if (!NT_STATUS_IS_OK(status)) {
1386 TALLOC_FREE(case_state);
1387 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1388 return ERROR_BOTH(NT_STATUS_PATH_NOT_COVERED, ERRSRV, ERRbadpath);
1389 }
1390 return ERROR_NT(status);
1391 }
1392
1393 status = unix_convert(conn, fname, False, NULL, &sbuf);
1394 if (!NT_STATUS_IS_OK(status)) {
1395 TALLOC_FREE(case_state);
1396 return ERROR_NT(status);
1397 }
1398 /* All file access must go through check_name() */
1399 status = check_name(conn, fname);
1400 if (!NT_STATUS_IS_OK(status)) {
1401 TALLOC_FREE(case_state);
1402 return ERROR_NT(status);
1403 }
1404
1405 /* This is the correct thing to do (check every time) but can_delete is
1406 expensive (it may have to read the parent directory permissions). So
1407 for now we're not doing it unless we have a strong hint the client
1408 is really going to delete this file. If the client is forcing FILE_CREATE
1409 let the filesystem take care of the permissions. */
1410
1411 /* Setting FILE_SHARE_DELETE is the hint. */
1412
1413 if (lp_acl_check_permissions(SNUM(conn))
1414 && (create_disposition != FILE_CREATE)
1415 && (share_access & FILE_SHARE_DELETE)
1416 && (access_mask & DELETE_ACCESS)) {
1417 if ((dos_mode(conn, fname, &sbuf) & FILE_ATTRIBUTE_READONLY) ||
1418 !can_delete_file_in_directory(conn, fname)) {
1419 TALLOC_FREE(case_state);
1420 return ERROR_NT(NT_STATUS_ACCESS_DENIED);
1421 }
1422 }
1423
1424 #if 0
1425 /* We need to support SeSecurityPrivilege for this. */
1426 if ((access_mask & SEC_RIGHT_SYSTEM_SECURITY) &&
1427 !user_has_privileges(current_user.nt_user_token,
1428 &se_security)) {
1429 TALLOC_FREE(case_state);
1430 return ERROR_NT(NT_STATUS_PRIVILEGE_NOT_HELD);
1431 }
1432 #endif
1433
1434 if (ea_len) {
1435 pdata = data + sd_len;
1436
1437 /* We have already checked that ea_len <= data_count here. */
1438 ea_list = read_nttrans_ea_list(tmp_talloc_ctx(), pdata,
1439 ea_len);
1440 if (!ea_list ) {
1441 TALLOC_FREE(case_state);
1442 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
1443 }
1444 }
1445
1446 /*
1447 * If it's a request for a directory open, deal with it separately.
1448 */
1449
1450 if(create_options & FILE_DIRECTORY_FILE) {
1451
1452 /* Can't open a temp directory. IFS kit test. */
1453 if (file_attributes & FILE_ATTRIBUTE_TEMPORARY) {
1454 TALLOC_FREE(case_state);
1455 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
1456 }
1457
1458 /*
1459 * We will get a create directory here if the Win32
1460 * app specified a security descriptor in the
1461 * CreateDirectory() call.
1462 */
1463
1464 oplock_request = 0;
1465 status = open_directory(conn, &req, fname, &sbuf,
1466 access_mask,
1467 share_access,
1468 create_disposition,
1469 create_options,
1470 file_attributes,
1471 &info, &fsp);
1472 if(!NT_STATUS_IS_OK(status)) {
1473 TALLOC_FREE(case_state);
1474 return ERROR_NT(status);
1475 }
1476
1477 } else {
1478
1479 /*
1480 * Ordinary file case.
1481 */
1482
1483 status = open_file_ntcreate(conn,&req,fname,&sbuf,
1484 access_mask,
1485 share_access,
1486 create_disposition,
1487 create_options,
1488 file_attributes,
1489 oplock_request,
1490 &info, &fsp);
1491
1492 if (!NT_STATUS_IS_OK(status)) {
1493 if (NT_STATUS_EQUAL(status,
1494 NT_STATUS_FILE_IS_A_DIRECTORY)) {
1495
1496 /*
1497 * Fail the open if it was explicitly a non-directory file.
1498 */
1499
1500 if (create_options & FILE_NON_DIRECTORY_FILE) {
1501 TALLOC_FREE(case_state);
1502 return ERROR_FORCE_NT(NT_STATUS_FILE_IS_A_DIRECTORY);
1503 }
1504
1505 oplock_request = 0;
1506 status = open_directory(conn, &req, fname,
1507 &sbuf,
1508 access_mask,
1509 share_access,
1510 create_disposition,
1511 create_options,
1512 file_attributes,
1513 &info, &fsp);
1514 if(!NT_STATUS_IS_OK(status)) {
1515 TALLOC_FREE(case_state);
1516 return ERROR_NT(status);
1517 }
1518 } else {
1519 TALLOC_FREE(case_state);
1520 if (open_was_deferred(SVAL(inbuf,smb_mid))) {
1521 /* We have re-scheduled this call. */
1522 return -1;
1523 }
1524 return ERROR_NT(status);
1525 }
1526 }
1527 }
1528
1529 /*
1530 * According to the MS documentation, the only time the security
1531 * descriptor is applied to the opened file is iff we *created* the
1532 * file; an existing file stays the same.
1533 *
1534 * Also, it seems (from observation) that you can open the file with
1535 * any access mask but you can still write the sd. We need to override
1536 * the granted access before we call set_sd
1537 * Patch for bug #2242 from Tom Lackemann <cessnatomny@yahoo.com>.
1538 */
1539
1540 if (lp_nt_acl_support(SNUM(conn)) && sd_len && info == FILE_WAS_CREATED) {
1541 uint32 saved_access_mask = fsp->access_mask;
1542
1543 /* We have already checked that sd_len <= data_count here. */
1544
1545 fsp->access_mask = FILE_GENERIC_ALL;
1546
1547 status = set_sd( fsp, data, sd_len, ALL_SECURITY_INFORMATION);
1548 if (!NT_STATUS_IS_OK(status)) {
1549 talloc_destroy(ctx);
1550 close_file(fsp,ERROR_CLOSE);
1551 TALLOC_FREE(case_state);
1552 return ERROR_NT(status);
1553 }
1554 fsp->access_mask = saved_access_mask;
1555 }
1556
1557 if (ea_len && (info == FILE_WAS_CREATED)) {
1558 status = set_ea(conn, fsp, fname, ea_list);
1559 if (!NT_STATUS_IS_OK(status)) {
1560 close_file(fsp,ERROR_CLOSE);
1561 TALLOC_FREE(case_state);
1562 return ERROR_NT(status);
1563 }
1564 }
1565
1566 TALLOC_FREE(case_state);
1567
1568 file_len = sbuf.st_size;
1569 fattr = dos_mode(conn,fname,&sbuf);
1570 if(fattr == 0) {
1571 fattr = FILE_ATTRIBUTE_NORMAL;
1572 }
1573 if (!fsp->is_directory && (fattr & aDIR)) {
1574 close_file(fsp,ERROR_CLOSE);
1575 return ERROR_DOS(ERRDOS,ERRnoaccess);
1576 }
1577
1578 /* Save the requested allocation size. */
1579 if ((info == FILE_WAS_CREATED) || (info == FILE_WAS_OVERWRITTEN)) {
1580 SMB_BIG_UINT allocation_size = (SMB_BIG_UINT)IVAL(params,12);
1581 #ifdef LARGE_SMB_OFF_T
1582 allocation_size |= (((SMB_BIG_UINT)IVAL(params,16)) << 32);
1583 #endif
1584 if (allocation_size && (allocation_size > file_len)) {
1585 fsp->initial_allocation_size = smb_roundup(fsp->conn, allocation_size);
1586 if (fsp->is_directory) {
1587 close_file(fsp,ERROR_CLOSE);
1588 /* Can't set allocation size on a directory. */
1589 return ERROR_NT(NT_STATUS_ACCESS_DENIED);
1590 }
1591 if (vfs_allocate_file_space(fsp, fsp->initial_allocation_size) == -1) {
1592 close_file(fsp,ERROR_CLOSE);
1593 return ERROR_NT(NT_STATUS_DISK_FULL);
1594 }
1595 } else {
1596 fsp->initial_allocation_size = smb_roundup(fsp->conn, (SMB_BIG_UINT)file_len);
1597 }
1598 }
1599
1600 /*
1601 * If the caller set the extended oplock request bit
1602 * and we granted one (by whatever means) - set the
1603 * correct bit for extended oplock reply.
1604 */
1605
1606 if (oplock_request && lp_fake_oplocks(SNUM(conn))) {
1607 extended_oplock_granted = True;
1608 }
1609
1610 if(oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
1611 extended_oplock_granted = True;
1612 }
1613
1614 /* Realloc the size of parameters and data we will return */
1615 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1616 /* Extended response is 32 more byyes. */
1617 param_len = 101;
1618 } else {
1619 param_len = 69;
1620 }
1621 params = nttrans_realloc(ppparams, param_len);
1622 if(params == NULL) {
1623 return ERROR_DOS(ERRDOS,ERRnomem);
1624 }
1625
1626 p = params;
1627 if (extended_oplock_granted) {
1628 if (flags & REQUEST_BATCH_OPLOCK) {
1629 SCVAL(p,0, BATCH_OPLOCK_RETURN);
1630 } else {
1631 SCVAL(p,0, EXCLUSIVE_OPLOCK_RETURN);
1632 }
1633 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1634 SCVAL(p,0, LEVEL_II_OPLOCK_RETURN);
1635 } else {
1636 SCVAL(p,0,NO_OPLOCK_RETURN);
1637 }
1638
1639 p += 2;
1640 SSVAL(p,0,fsp->fnum);
1641 p += 2;
1642 if ((create_disposition == FILE_SUPERSEDE) && (info == FILE_WAS_OVERWRITTEN)) {
1643 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1644 } else {
1645 SIVAL(p,0,info);
1646 }
1647 p += 8;
1648
1649 /* Create time. */
1650 c_timespec = get_create_timespec(&sbuf,lp_fake_dir_create_times(SNUM(conn)));
1651 a_timespec = get_atimespec(&sbuf);
1652 m_timespec = get_mtimespec(&sbuf);
1653
1654 if (lp_dos_filetime_resolution(SNUM(conn))) {
1655 dos_filetime_timespec(&c_timespec);
1656 dos_filetime_timespec(&a_timespec);
1657 dos_filetime_timespec(&m_timespec);
1658 }
1659
1660 put_long_date_timespec(p, c_timespec); /* create time. */
1661 p += 8;
1662 put_long_date_timespec(p, a_timespec); /* access time */
1663 p += 8;
1664 put_long_date_timespec(p, m_timespec); /* write time */
1665 p += 8;
1666 put_long_date_timespec(p, m_timespec); /* change time */
1667 p += 8;
1668 SIVAL(p,0,fattr); /* File Attributes. */
1669 p += 4;
1670 SOFF_T(p, 0, get_allocation_size(conn,fsp,&sbuf));
1671 p += 8;
1672 SOFF_T(p,0,file_len);
1673 p += 8;
1674 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1675 SSVAL(p,2,0x7);
1676 }
1677 p += 4;
1678 SCVAL(p,0,fsp->is_directory ? 1 : 0);
1679
1680 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1681 uint32 perms = 0;
1682 p += 25;
1683 if (fsp->is_directory || can_write_to_file(conn, fname, &sbuf)) {
1684 perms = FILE_GENERIC_ALL;
1685 } else {
1686 perms = FILE_GENERIC_READ|FILE_EXECUTE;
1687 }
1688 SIVAL(p,0,perms);
1689 }
1690
1691 DEBUG(5,("call_nt_transact_create: open name = %s\n", fname));
1692
1693 /* Send the required number of replies */
1694 send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, params, param_len, *ppdata, 0);
1695
1696 return -1;
1697 }
1698
1699 /****************************************************************************
1700 Reply to a NT CANCEL request.
1701 conn POINTER CAN BE NULL HERE !
1702 ****************************************************************************/
1703
1704 int reply_ntcancel(connection_struct *conn,
1705 char *inbuf,char *outbuf,int length,int bufsize)
1706 {
1707 /*
1708 * Go through and cancel any pending change notifies.
1709 */
1710
1711 int mid = SVAL(inbuf,smb_mid);
1712 START_PROFILE(SMBntcancel);
1713 remove_pending_change_notify_requests_by_mid(mid);
1714 remove_pending_lock_requests_by_mid(mid);
1715 srv_cancel_sign_response(mid);
1716
1717 DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", mid));
1718
1719 END_PROFILE(SMBntcancel);
1720 return(-1);
1721 }
1722
1723 /****************************************************************************
1724 Copy a file.
1725 ****************************************************************************/
1726
1727 static NTSTATUS copy_internals(connection_struct *conn,
1728 struct smb_request *req,
1729 char *oldname, char *newname, uint32 attrs)
1730 {
1731 SMB_STRUCT_STAT sbuf1, sbuf2;
1732 pstring last_component_oldname;
1733 pstring last_component_newname;
1734 files_struct *fsp1,*fsp2;
1735 uint32 fattr;
1736 int info;
1737 SMB_OFF_T ret=-1;
1738 NTSTATUS status = NT_STATUS_OK;
1739
1740 ZERO_STRUCT(sbuf1);
1741 ZERO_STRUCT(sbuf2);
1742
1743 if (!CAN_WRITE(conn)) {
1744 return NT_STATUS_MEDIA_WRITE_PROTECTED;
1745 }
1746
1747 status = unix_convert(conn, oldname, False, last_component_oldname, &sbuf1);
1748 if (!NT_STATUS_IS_OK(status)) {
1749 return status;
1750 }
1751
1752 status = check_name(conn, oldname);
1753 if (!NT_STATUS_IS_OK(status)) {
1754 return status;
1755 }
1756
1757 /* Source must already exist. */
1758 if (!VALID_STAT(sbuf1)) {
1759 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
1760 }
1761 /* Ensure attributes match. */
1762 fattr = dos_mode(conn,oldname,&sbuf1);
1763 if ((fattr & ~attrs) & (aHIDDEN | aSYSTEM)) {
1764 return NT_STATUS_NO_SUCH_FILE;
1765 }
1766
1767 status = unix_convert(conn, newname, False, last_component_newname, &sbuf2);
1768 if (!NT_STATUS_IS_OK(status)) {
1769 return status;
1770 }
1771
1772 status = check_name(conn, newname);
1773 if (!NT_STATUS_IS_OK(status)) {
1774 return status;
1775 }
1776
1777 /* Disallow if newname already exists. */
1778 if (VALID_STAT(sbuf2)) {
1779 return NT_STATUS_OBJECT_NAME_COLLISION;
1780 }
1781
1782 /* No links from a directory. */
1783 if (S_ISDIR(sbuf1.st_mode)) {
1784 return NT_STATUS_FILE_IS_A_DIRECTORY;
1785 }
1786
1787 /* Ensure this is within the share. */
1788 status = check_reduced_name(conn, oldname);
1789 if (!NT_STATUS_IS_OK(status)) {
1790 return status;
1791 }
1792
1793 DEBUG(10,("copy_internals: doing file copy %s to %s\n", oldname, newname));
1794
1795 status = open_file_ntcreate(conn, req, oldname, &sbuf1,
1796 FILE_READ_DATA, /* Read-only. */
1797 FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
1798 FILE_OPEN,
1799 0, /* No create options. */
1800 FILE_ATTRIBUTE_NORMAL,
1801 NO_OPLOCK,
1802 &info, &fsp1);
1803
1804 if (!NT_STATUS_IS_OK(status)) {
1805 return status;
1806 }
1807
1808 status = open_file_ntcreate(conn, req, newname, &sbuf2,
1809 FILE_WRITE_DATA, /* Read-only. */
1810 FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
1811 FILE_CREATE,
1812 0, /* No create options. */
1813 fattr,
1814 NO_OPLOCK,
1815 &info, &fsp2);
1816
1817 if (!NT_STATUS_IS_OK(status)) {
1818 close_file(fsp1,ERROR_CLOSE);
1819 return status;
1820 }
1821
1822 if (sbuf1.st_size) {
1823 ret = vfs_transfer_file(fsp1, fsp2, sbuf1.st_size);
1824 }
1825
1826 /*
1827 * As we are opening fsp1 read-only we only expect
1828 * an error on close on fsp2 if we are out of space.
1829 * Thus we don't look at the error return from the
1830 * close of fsp1.
1831 */
1832 close_file(fsp1,NORMAL_CLOSE);
1833
1834 /* Ensure the modtime is set correctly on the destination file. */
1835 fsp_set_pending_modtime(fsp2, get_mtimespec(&sbuf1));
1836
1837 status = close_file(fsp2,NORMAL_CLOSE);
1838
1839 /* Grrr. We have to do this as open_file_ntcreate adds aARCH when it
1840 creates the file. This isn't the correct thing to do in the copy
1841 case. JRA */
1842 file_set_dosmode(conn, newname, fattr, &sbuf2,
1843 parent_dirname(newname));
1844
1845 if (ret < (SMB_OFF_T)sbuf1.st_size) {
1846 return NT_STATUS_DISK_FULL;
1847 }
1848
1849 if (!NT_STATUS_IS_OK(status)) {
1850 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1851 nt_errstr(status), oldname, newname));
1852 }
1853 return status;
1854 }
1855
1856 /****************************************************************************
1857 Reply to a NT rename request.
1858 ****************************************************************************/
1859
1860 int reply_ntrename(connection_struct *conn,
1861 char *inbuf,char *outbuf,int length,int bufsize)
1862 {
1863 int outsize = 0;
1864 pstring oldname;
1865 pstring newname;
1866 char *p;
1867 NTSTATUS status;
1868 BOOL src_has_wcard = False;
1869 BOOL dest_has_wcard = False;
1870 uint32 attrs = SVAL(inbuf,smb_vwv0);
1871 uint16 rename_type = SVAL(inbuf,smb_vwv1);
1872 struct smb_request req;
1873
1874 START_PROFILE(SMBntrename);
1875
1876 init_smb_request(&req, (uint8 *)inbuf);
1877
1878 p = smb_buf(inbuf) + 1;
1879 p += srvstr_get_path_wcard(inbuf, SVAL(inbuf,smb_flg2), oldname, p,
1880 sizeof(oldname), 0, STR_TERMINATE, &status,
1881 &src_has_wcard);
1882 if (!NT_STATUS_IS_OK(status)) {
1883 END_PROFILE(SMBntrename);
1884 return ERROR_NT(status);
1885 }
1886
1887 if( is_ntfs_stream_name(oldname)) {
1888 /* Can't rename a stream. */
1889 END_PROFILE(SMBntrename);
1890 return ERROR_NT(NT_STATUS_ACCESS_DENIED);
1891 }
1892
1893 if (ms_has_wild(oldname)) {
1894 END_PROFILE(SMBntrename);
1895 return ERROR_NT(NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1896 }
1897
1898 p++;
1899 p += srvstr_get_path_wcard(inbuf, SVAL(inbuf,smb_flg2), newname, p,
1900 sizeof(newname), 0, STR_TERMINATE, &status,
1901 &dest_has_wcard);
1902 if (!NT_STATUS_IS_OK(status)) {
1903 END_PROFILE(SMBntrename);
1904 return ERROR_NT(status);
1905 }
1906
1907 status = resolve_dfspath(conn, SVAL(inbuf,smb_flg2) & FLAGS2_DFS_PATHNAMES, oldname);
1908 if (!NT_STATUS_IS_OK(status)) {
1909 END_PROFILE(SMBntrename);
1910 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1911 return ERROR_BOTH(NT_STATUS_PATH_NOT_COVERED, ERRSRV, ERRbadpath);
1912 }
1913 return ERROR_NT(status);
1914 }
1915
1916 status = resolve_dfspath(conn, SVAL(inbuf,smb_flg2) & FLAGS2_DFS_PATHNAMES, newname);
1917 if (!NT_STATUS_IS_OK(status)) {
1918 END_PROFILE(SMBntrename);
1919 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1920 return ERROR_BOTH(NT_STATUS_PATH_NOT_COVERED, ERRSRV, ERRbadpath);
1921 }
1922 return ERROR_NT(status);
1923 }
1924
1925 DEBUG(3,("reply_ntrename : %s -> %s\n",oldname,newname));
1926
1927 switch(rename_type) {
1928 case RENAME_FLAG_RENAME:
1929 status = rename_internals(conn, &req, oldname, newname,
1930 attrs, False, src_has_wcard,
1931 dest_has_wcard);
1932 break;
1933 case RENAME_FLAG_HARD_LINK:
1934 if (src_has_wcard || dest_has_wcard) {
1935 /* No wildcards. */
1936 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1937 } else {
1938 status = hardlink_internals(conn, oldname, newname);
1939 }
1940 break;
1941 case RENAME_FLAG_COPY:
1942 if (src_has_wcard || dest_has_wcard) {
1943 /* No wildcards. */
1944 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1945 } else {
1946 status = copy_internals(conn, &req, oldname,
1947 newname, attrs);
1948 }
1949 break;
1950 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1951 status = NT_STATUS_INVALID_PARAMETER;
1952 break;
1953 default:
1954 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1955 break;
1956 }
1957
1958 if (!NT_STATUS_IS_OK(status)) {
1959 END_PROFILE(SMBntrename);
1960 if (open_was_deferred(SVAL(inbuf,smb_mid))) {
1961 /* We have re-scheduled this call. */
1962 return -1;
1963 }
1964 return ERROR_NT(status);
1965 }
1966
1967 outsize = set_message(inbuf,outbuf,0,0,False);
1968
1969 END_PROFILE(SMBntrename);
1970 return(outsize);
1971 }
1972
1973 /****************************************************************************
1974 Reply to a notify change - queue the request and
1975 don't allow a directory to be opened.
1976 ****************************************************************************/
1977
1978 static int call_nt_transact_notify_change(connection_struct *conn, char *inbuf,
1979 char *outbuf, int length,
1980 int bufsize,
1981 uint16 **ppsetup, uint32 setup_count,
1982 char **ppparams,
1983 uint32 parameter_count,
1984 char **ppdata, uint32 data_count,
1985 uint32 max_data_count,
1986 uint32 max_param_count)
1987 {
1988 uint16 *setup = *ppsetup;
1989 files_struct *fsp;
1990 uint32 filter;
1991 NTSTATUS status;
1992 BOOL recursive;
1993
1994 if(setup_count < 6) {
1995 return ERROR_DOS(ERRDOS,ERRbadfunc);
1996 }
1997
1998 fsp = file_fsp((char *)setup,4);
1999 filter = IVAL(setup, 0);
2000 recursive = (SVAL(setup, 6) != 0) ? True : False;
2001
2002 DEBUG(3,("call_nt_transact_notify_change\n"));
2003
2004 if(!fsp) {
2005 return ERROR_DOS(ERRDOS,ERRbadfid);
2006 }
2007
2008 {
2009 char *filter_string;
2010
2011 if (!(filter_string = notify_filter_string(NULL, filter))) {
2012 return ERROR_NT(NT_STATUS_NO_MEMORY);
2013 }
2014
2015 DEBUG(3,("call_nt_transact_notify_change: notify change "
2016 "called on %s, filter = %s, recursive = %d\n",
2017 fsp->fsp_name, filter_string, recursive));
2018
2019 TALLOC_FREE(filter_string);
2020 }
2021
2022 if((!fsp->is_directory) || (conn != fsp->conn)) {
2023 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
2024 }
2025
2026 if (fsp->notify == NULL) {
2027
2028 status = change_notify_create(fsp, filter, recursive);
2029
2030 if (!NT_STATUS_IS_OK(status)) {
2031 DEBUG(10, ("change_notify_create returned %s\n",
2032 nt_errstr(status)));
2033 return ERROR_NT(status);
2034 }
2035 }
2036
2037 if (fsp->notify->num_changes != 0) {
2038
2039 /*
2040 * We've got changes pending, respond immediately
2041 */
2042
2043 /*
2044 * TODO: write a torture test to check the filtering behaviour
2045 * here.
2046 */
2047
2048 change_notify_reply(inbuf, max_param_count, fsp->notify);
2049
2050 /*
2051 * change_notify_reply() above has independently sent its
2052 * results
2053 */
2054 return -1;
2055 }
2056
2057 /*
2058 * No changes pending, queue the request
2059 */
2060
2061 status = change_notify_add_request(inbuf, max_param_count, filter,
2062 recursive, fsp);
2063 if (!NT_STATUS_IS_OK(status)) {
2064 return ERROR_NT(status);
2065 }
2066
2067 return -1;
2068 }
2069
2070 /****************************************************************************
2071 Reply to an NT transact rename command.
2072 ****************************************************************************/
2073
2074 static int call_nt_transact_rename(connection_struct *conn, char *inbuf, char *outbuf, int length, int bufsize,
2075 uint16 **ppsetup, uint32 setup_count,
2076 char **ppparams, uint32 parameter_count,
2077 char **ppdata, uint32 data_count, uint32 max_data_count)
2078 {
2079 char *params = *ppparams;
2080 pstring new_name;
2081 files_struct *fsp = NULL;
2082 BOOL replace_if_exists = False;
2083 BOOL dest_has_wcard = False;
2084 NTSTATUS status;
2085 struct smb_request req;
2086
2087 init_smb_request(&req, (uint8 *)inbuf);
2088
2089 if(parameter_count < 5) {
2090 return ERROR_DOS(ERRDOS,ERRbadfunc);
2091 }
2092
2093 fsp = file_fsp(params, 0);
2094 replace_if_exists = (SVAL(params,2) & RENAME_REPLACE_IF_EXISTS) ? True : False;
2095 CHECK_FSP(fsp, conn);
2096 srvstr_get_path_wcard(inbuf, SVAL(inbuf,smb_flg2), new_name, params+4,
2097 sizeof(new_name), parameter_count - 4,
2098 STR_TERMINATE, &status, &dest_has_wcard);
2099 if (!NT_STATUS_IS_OK(status)) {
2100 return ERROR_NT(status);
2101 }
2102
2103 status = rename_internals(conn, &req, fsp->fsp_name,
2104 new_name, 0, replace_if_exists, False, dest_has_wcard);
2105
2106 if (!NT_STATUS_IS_OK(status)) {
2107 if (open_was_deferred(SVAL(inbuf,smb_mid))) {
2108 /* We have re-scheduled this call. */
2109 return -1;
2110 }
2111 return ERROR_NT(status);
2112 }
2113
2114 /*
2115 * Rename was successful.
2116 */
2117 send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, NULL, 0, NULL, 0);
2118
2119 DEBUG(3,("nt transact rename from = %s, to = %s succeeded.\n",
2120 fsp->fsp_name, new_name));
2121
2122 return -1;
2123 }
2124
2125 /******************************************************************************
2126 Fake up a completely empty SD.
2127 *******************************************************************************/
2128
2129 static size_t get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
2130 {
2131 size_t sd_size;
2132
2133 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
2134 if(!*ppsd) {
2135 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
2136 sd_size = 0;
2137 }
2138
2139 return sd_size;
2140 }
2141
2142 /****************************************************************************
2143 Reply to query a security descriptor.
2144 ****************************************************************************/
2145
2146 static int call_nt_transact_query_security_desc(connection_struct *conn, char *inbuf, char *outbuf, int length, int bufsize,
2147 uint16 **ppsetup, uint32 setup_count,
2148 char **ppparams, uint32 parameter_count,
2149 char **ppdata, uint32 data_count, uint32 max_data_count)
2150 {
2151 char *params = *ppparams;
2152 char *data = *ppdata;
2153 prs_struct pd;
2154 SEC_DESC *psd = NULL;
2155 size_t sd_size;
2156 uint32 security_info_wanted;
2157 TALLOC_CTX *mem_ctx;
2158 files_struct *fsp = NULL;
2159
2160 if(parameter_count < 8) {
2161 return ERROR_DOS(ERRDOS,ERRbadfunc);
2162 }
2163
2164 fsp = file_fsp(params,0);
2165 if(!fsp) {
2166 return ERROR_DOS(ERRDOS,ERRbadfid);
2167 }
2168
2169 security_info_wanted = IVAL(params,4);
2170
2171 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, info_wanted = 0x%x\n", fsp->fsp_name,
2172 (unsigned int)security_info_wanted ));
2173
2174 params = nttrans_realloc(ppparams, 4);
2175 if(params == NULL) {
2176 return ERROR_DOS(ERRDOS,ERRnomem);
2177 }
2178
2179 if ((mem_ctx = talloc_init("call_nt_transact_query_security_desc")) == NULL) {
2180 DEBUG(0,("call_nt_transact_query_security_desc: talloc_init failed.\n"));
2181 return ERROR_DOS(ERRDOS,ERRnomem);
2182 }
2183
2184 /*
2185 * Get the permissions to return.
2186 */
2187
2188 if (!lp_nt_acl_support(SNUM(conn))) {
2189 sd_size = get_null_nt_acl(mem_ctx, &psd);
2190 } else {
2191 sd_size = SMB_VFS_FGET_NT_ACL(fsp, fsp->fh->fd, security_info_wanted, &psd);
2192 }
2193
2194 if (sd_size == 0) {
2195 talloc_destroy(mem_ctx);
2196 return(UNIXERROR(ERRDOS,ERRnoaccess));
2197 }
2198
2199 DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %lu.\n",(unsigned long)sd_size));
2200
2201 SIVAL(params,0,(uint32)sd_size);
2202
2203 if(max_data_count < sd_size) {
2204
2205 send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_BUFFER_TOO_SMALL,
2206 params, 4, *ppdata, 0);
2207 talloc_destroy(mem_ctx);
2208 return -1;
2209 }
2210
2211 /*
2212 * Allocate the data we will point this at.
2213 */
2214
2215 data = nttrans_realloc(ppdata, sd_size);
2216 if(data == NULL) {
2217 talloc_destroy(mem_ctx);
2218 return ERROR_DOS(ERRDOS,ERRnomem);
2219 }
2220
2221 /*
2222 * Init the parse struct we will marshall into.
2223 */
2224
2225 prs_init(&pd, 0, mem_ctx, MARSHALL);
2226
2227 /*
2228 * Setup the prs_struct to point at the memory we just
2229 * allocated.
2230 */
2231
2232 prs_give_memory( &pd, data, (uint32)sd_size, False);
2233
2234 /*
2235 * Finally, linearize into the outgoing buffer.
2236 */
2237
2238 if(!sec_io_desc( "sd data", &psd, &pd, 1)) {
2239 DEBUG(0,("call_nt_transact_query_security_desc: Error in marshalling \
2240 security descriptor.\n"));
2241 /*
2242 * Return access denied for want of a better error message..
2243 */
2244 talloc_destroy(mem_ctx);
2245 return(UNIXERROR(ERRDOS,ERRnoaccess));
2246 }
2247
2248 /*
2249 * Now we can delete the security descriptor.
2250 */
2251
2252 talloc_destroy(mem_ctx);
2253
2254 send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, params, 4, data,
2255 (int)sd_size);
2256 return -1;
2257 }
2258
2259 /****************************************************************************
2260 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
2261 ****************************************************************************/
2262
2263 static int call_nt_transact_set_security_desc(connection_struct *conn, char *inbuf, char *outbuf, int length, int bufsize,
2264 uint16 **ppsetup, uint32 setup_count,
2265 char **ppparams, uint32 parameter_count,
2266 char **ppdata, uint32 data_count, uint32 max_data_count)
2267 {
2268 char *params= *ppparams;
2269 char *data = *ppdata;
2270 files_struct *fsp = NULL;
2271 uint32 security_info_sent = 0;
2272 NTSTATUS nt_status;
2273
2274 if(parameter_count < 8) {
2275 return ERROR_DOS(ERRDOS,ERRbadfunc);
2276 }
2277
2278 if((fsp = file_fsp(params,0)) == NULL) {
2279 return ERROR_DOS(ERRDOS,ERRbadfid);
2280 }
2281
2282 if(!lp_nt_acl_support(SNUM(conn))) {
2283 goto done;
2284 }
2285
2286 security_info_sent = IVAL(params,4);
2287
2288 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n", fsp->fsp_name,
2289 (unsigned int)security_info_sent ));
2290
2291 if (data_count == 0) {
2292 return ERROR_DOS(ERRDOS, ERRnoaccess);
2293 }
2294
2295 if (!NT_STATUS_IS_OK(nt_status = set_sd( fsp, data, data_count, security_info_sent))) {
2296 return ERROR_NT(nt_status);
2297 }
2298
2299 done:
2300
2301 send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, NULL, 0, NULL, 0);
2302 return -1;
2303 }
2304
2305 /****************************************************************************
2306 Reply to NT IOCTL
2307 ****************************************************************************/
2308
2309 static int call_nt_transact_ioctl(connection_struct *conn, char *inbuf, char *outbuf, int length, int bufsize,
2310 uint16 **ppsetup, uint32 setup_count,
2311 char **ppparams, uint32 parameter_count,
2312 char **ppdata, uint32 data_count, uint32 max_data_count)
2313 {
2314 uint32 function;
2315 uint16 fidnum;
2316 files_struct *fsp;
2317 uint8 isFSctl;
2318 uint8 compfilter;
2319 static BOOL logged_message;
2320 char *pdata = *ppdata;
2321
2322 if (setup_count != 8) {
2323 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
2324 return ERROR_NT(NT_STATUS_NOT_SUPPORTED);
2325 }
2326
2327 function = IVAL(*ppsetup, 0);
2328 fidnum = SVAL(*ppsetup, 4);
2329 isFSctl = CVAL(*ppsetup, 6);
2330 compfilter = CVAL(*ppsetup, 7);
2331
2332 DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
2333 function, fidnum, isFSctl, compfilter));
2334
2335 fsp=file_fsp((char *)*ppsetup, 4);
2336 /* this check is done in each implemented function case for now
2337 because I don't want to break anything... --metze
2338 FSP_BELONGS_CONN(fsp,conn);*/
2339
2340 switch (function) {
2341 case FSCTL_SET_SPARSE:
2342 /* pretend this succeeded - tho strictly we should
2343 mark the file sparse (if the local fs supports it)
2344 so we can know if we need to pre-allocate or not */
2345
2346 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum));
2347 send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, NULL, 0, NULL,
2348 0);
2349 return -1;
2350
2351 case FSCTL_CREATE_OR_GET_OBJECT_ID:
2352 {
2353 unsigned char objid[16];
2354
2355 /* This should return the object-id on this file.
2356 * I think I'll make this be the inode+dev. JRA.
2357 */
2358
2359 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
2360
2361 data_count = 64;
2362 pdata = nttrans_realloc(ppdata, data_count);
2363 if (pdata == NULL) {
2364 return ERROR_NT(NT_STATUS_NO_MEMORY);
2365 }
2366 push_file_id_16(pdata, &fsp->file_id);
2367 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
2368 push_file_id_16(pdata+32, &fsp->file_id);
2369 send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, NULL, 0, pdata, data_count);
2370 return -1;
2371 }
2372
2373 case FSCTL_GET_REPARSE_POINT:
2374 /* pretend this fail - my winXP does it like this
2375 * --metze
2376 */
2377
2378 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
2379 return ERROR_NT(NT_STATUS_NOT_A_REPARSE_POINT);
2380
2381 case FSCTL_SET_REPARSE_POINT:
2382 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
2383 * --metze
2384 */
2385
2386 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
2387 return ERROR_NT(NT_STATUS_NOT_A_REPARSE_POINT);
2388
2389 case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
2390 {
2391 /*
2392 * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
2393 * and return their volume names. If max_data_count is 16, then it is just
2394 * asking for the number of volumes and length of the combined names.
2395 *
2396 * pdata is the data allocated by our caller, but that uses
2397 * total_data_count (which is 0 in our case) rather than max_data_count.
2398 * Allocate the correct amount and return the pointer to let
2399 * it be deallocated when we return.
2400 */
2401 SHADOW_COPY_DATA *shadow_data = NULL;
2402 TALLOC_CTX *shadow_mem_ctx = NULL;
2403 BOOL labels = False;
2404 uint32 labels_data_count = 0;
2405 uint32 i;
2406 char *cur_pdata;
2407
2408 FSP_BELONGS_CONN(fsp,conn);
2409
2410 if (max_data_count < 16) {
2411 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
2412 max_data_count));
2413 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
2414 }
2415
2416 if (max_data_count > 16) {
2417 labels = True;
2418 }
2419
2420 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
2421 if (shadow_mem_ctx == NULL) {
2422 DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
2423 return ERROR_NT(NT_STATUS_NO_MEMORY);
2424 }
2425
2426 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
2427 if (shadow_data == NULL) {
2428 DEBUG(0,("TALLOC_ZERO() failed!\n"));
2429 talloc_destroy(shadow_mem_ctx);
2430 return ERROR_NT(NT_STATUS_NO_MEMORY);
2431 }
2432
2433 shadow_data->mem_ctx = shadow_mem_ctx;
2434
2435 /*
2436 * Call the VFS routine to actually do the work.
2437 */
2438 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
2439 talloc_destroy(shadow_data->mem_ctx);
2440 if (errno == ENOSYS) {
2441 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
2442 conn->connectpath));
2443 return ERROR_NT(NT_STATUS_NOT_SUPPORTED);
2444 } else {
2445 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
2446 conn->connectpath));
2447 return ERROR_NT(NT_STATUS_UNSUCCESSFUL);
2448 }
2449 }
2450
2451 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
2452
2453 if (!labels) {
2454 data_count = 16;
2455 } else {
2456 data_count = 12+labels_data_count+4;
2457 }
2458
2459 if (max_data_count<data_count) {
2460 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
2461 max_data_count,data_count));
2462 talloc_destroy(shadow_data->mem_ctx);
2463 return ERROR_NT(NT_STATUS_BUFFER_TOO_SMALL);
2464 }
2465
2466 pdata = nttrans_realloc(ppdata, data_count);
2467 if (pdata == NULL) {
2468 talloc_destroy(shadow_data->mem_ctx);
2469 return ERROR_NT(NT_STATUS_NO_MEMORY);
2470 }
2471
2472 cur_pdata = pdata;
2473
2474 /* num_volumes 4 bytes */
2475 SIVAL(pdata,0,shadow_data->num_volumes);
2476
2477 if (labels) {
2478 /* num_labels 4 bytes */
2479 SIVAL(pdata,4,shadow_data->num_volumes);
2480 }
2481
2482 /* needed_data_count 4 bytes */
2483 SIVAL(pdata,8,labels_data_count);
2484
2485 cur_pdata+=12;
2486
2487 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
2488 shadow_data->num_volumes,fsp->fsp_name));
2489 if (labels && shadow_data->labels) {
2490 for (i=0;i<shadow_data->num_volumes;i++) {
2491 srvstr_push(outbuf, cur_pdata, shadow_data->labels[i], 2*sizeof(SHADOW_COPY_LABEL), STR_UNICODE|STR_TERMINATE);
2492 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
2493 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
2494 }
2495 }
2496
2497 talloc_destroy(shadow_data->mem_ctx);
2498
2499 send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, NULL, 0,
2500 pdata, data_count);
2501
2502 return -1;
2503 }
2504
2505 case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
2506 {
2507 /* pretend this succeeded -
2508 *
2509 * we have to send back a list with all files owned by this SID
2510 *
2511 * but I have to check that --metze
2512 */
2513 DOM_SID sid;
2514 uid_t uid;
2515 size_t sid_len = MIN(data_count-4,SID_MAX_SIZE);
2516
2517 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
2518
2519 FSP_BELONGS_CONN(fsp,conn);
2520
2521 /* unknown 4 bytes: this is not the length of the sid :-( */
2522 /*unknown = IVAL(pdata,0);*/
2523
2524 sid_parse(pdata+4,sid_len,&sid);
2525 DEBUGADD(10,("for SID: %s\n",sid_string_static(&sid)));
2526
2527 if (!sid_to_uid(&sid, &uid)) {
2528 DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
2529 sid_string_static(&sid),(unsigned long)sid_len));
2530 uid = (-1);
2531 }
2532
2533 /* we can take a look at the find source :-)
2534 *
2535 * find ./ -uid $uid -name '*' is what we need here
2536 *
2537 *
2538 * and send 4bytes len and then NULL terminated unicode strings
2539 * for each file
2540 *
2541 * but I don't know how to deal with the paged results
2542 * (maybe we can hang the result anywhere in the fsp struct)
2543 *
2544 * we don't send all files at once
2545 * and at the next we should *not* start from the beginning,
2546 * so we have to cache the result
2547 *
2548 * --metze
2549 */
2550
2551 /* this works for now... */
2552 send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, NULL, 0,
2553 NULL, 0);
2554 return -1;
2555 }
2556 default:
2557 if (!logged_message) {
2558 logged_message = True; /* Only print this once... */
2559 DEBUG(0,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n",
2560 function));
2561 }
2562 }
2563
2564 return ERROR_NT(NT_STATUS_NOT_SUPPORTED);
2565 }
2566
2567
2568 #ifdef HAVE_SYS_QUOTAS
2569 /****************************************************************************
2570 Reply to get user quota
2571 ****************************************************************************/
2572
2573 static int call_nt_transact_get_user_quota(connection_struct *conn, char *inbuf, char *outbuf, int length, int bufsize,
2574 uint16 **ppsetup, uint32 setup_count,
2575 char **ppparams, uint32 parameter_count,
2576 char **ppdata, uint32 data_count, uint32 max_data_count)
2577 {
2578 NTSTATUS nt_status = NT_STATUS_OK;
2579 char *params = *ppparams;
2580 char *pdata = *ppdata;
2581 char *entry;
2582 int data_len=0,param_len=0;
2583 int qt_len=0;
2584 int entry_len = 0;
2585 files_struct *fsp = NULL;
2586 uint16 level = 0;
2587 size_t sid_len;
2588 DOM_SID sid;
2589 BOOL start_enum = True;
2590 SMB_NTQUOTA_STRUCT qt;
2591 SMB_NTQUOTA_LIST *tmp_list;
2592 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2593
2594 ZERO_STRUCT(qt);
2595
2596 /* access check */
2597 if (current_user.ut.uid != 0) {
2598 DEBUG(1,("get_user_quota: access_denied service [%s] user [%s]\n",
2599 lp_servicename(SNUM(conn)),conn->user));
2600 return ERROR_DOS(ERRDOS,ERRnoaccess);
2601 }
2602
2603 /*
2604 * Ensure minimum number of parameters sent.
2605 */
2606
2607 if (parameter_count < 4) {
2608 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2609 return ERROR_DOS(ERRDOS,ERRinvalidparam);
2610 }
2611
2612 /* maybe we can check the quota_fnum */
2613 fsp = file_fsp(params,0);
2614 if (!CHECK_NTQUOTA_HANDLE_OK(fsp,conn)) {
2615 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2616 return ERROR_NT(NT_STATUS_INVALID_HANDLE);
2617 }
2618
2619 /* the NULL pointer checking for fsp->fake_file_handle->pd
2620 * is done by CHECK_NTQUOTA_HANDLE_OK()
2621 */
2622 qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->pd;
2623
2624 level = SVAL(params,2);
2625
2626 /* unknown 12 bytes leading in params */
2627
2628 switch (level) {
2629 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2630 /* seems that we should continue with the enum here --metze */
2631
2632 if (qt_handle->quota_list!=NULL &&
2633 qt_handle->tmp_list==NULL) {
2634
2635 /* free the list */
2636 free_ntquota_list(&(qt_handle->quota_list));
2637
2638 /* Realloc the size of parameters and data we will return */
2639 param_len = 4;
2640 params = nttrans_realloc(ppparams, param_len);
2641 if(params == NULL) {
2642 return ERROR_DOS(ERRDOS,ERRnomem);
2643 }
2644
2645 data_len = 0;
2646 SIVAL(params,0,data_len);
2647
2648 break;
2649 }
2650
2651 start_enum = False;
2652
2653 case TRANSACT_GET_USER_QUOTA_LIST_START:
2654
2655 if (qt_handle->quota_list==NULL &&
2656 qt_handle->tmp_list==NULL) {
2657 start_enum = True;
2658 }
2659
2660 if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0)
2661 return ERROR_DOS(ERRSRV,ERRerror);
2662
2663 /* Realloc the size of parameters and data we will return */
2664 param_len = 4;
2665 params = nttrans_realloc(ppparams, param_len);
2666 if(params == NULL) {
2667 return ERROR_DOS(ERRDOS,ERRnomem);
2668 }
2669
2670 /* we should not trust the value in max_data_count*/
2671 max_data_count = MIN(max_data_count,2048);
2672
2673 pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2674 if(pdata == NULL) {
2675 return ERROR_DOS(ERRDOS,ERRnomem);
2676 }
2677
2678 entry = pdata;
2679
2680 /* set params Size of returned Quota Data 4 bytes*/
2681 /* but set it later when we know it */
2682
2683 /* for each entry push the data */
2684
2685 if (start_enum) {
2686 qt_handle->tmp_list = qt_handle->quota_list;
2687 }
2688
2689 tmp_list = qt_handle->tmp_list;
2690
2691 for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2692 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2693
2694 sid_len = sid_size(&tmp_list->quotas->sid);
2695 entry_len = 40 + sid_len;
2696
2697 /* nextoffset entry 4 bytes */
2698 SIVAL(entry,0,entry_len);
2699
2700 /* then the len of the SID 4 bytes */
2701 SIVAL(entry,4,sid_len);
2702
2703 /* unknown data 8 bytes SMB_BIG_UINT */
2704 SBIG_UINT(entry,8,(SMB_BIG_UINT)0); /* this is not 0 in windows...-metze*/
2705
2706 /* the used disk space 8 bytes SMB_BIG_UINT */
2707 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2708
2709 /* the soft quotas 8 bytes SMB_BIG_UINT */
2710 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2711
2712 /* the hard quotas 8 bytes SMB_BIG_UINT */
2713 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2714
2715 /* and now the SID */
2716 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2717 }
2718
2719 qt_handle->tmp_list = tmp_list;
2720
2721 /* overwrite the offset of the last entry */
2722 SIVAL(entry-entry_len,0,0);
2723
2724 data_len = 4+qt_len;
2725 /* overwrite the params quota_data_len */
2726 SIVAL(params,0,data_len);
2727
2728 break;
2729
2730 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2731
2732 /* unknown 4 bytes IVAL(pdata,0) */
2733
2734 if (data_count < 8) {
2735 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2736 return ERROR_DOS(ERRDOS,ERRunknownlevel);
2737 }
2738
2739 sid_len = IVAL(pdata,4);
2740 /* Ensure this is less than 1mb. */
2741 if (sid_len > (1024*1024)) {
2742 return ERROR_DOS(ERRDOS,ERRnomem);
2743 }
2744
2745 if (data_count < 8+sid_len) {
2746 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2747 return ERROR_DOS(ERRDOS,ERRunknownlevel);
2748 }
2749
2750 data_len = 4+40+sid_len;
2751
2752 if (max_data_count < data_len) {
2753 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2754 max_data_count, data_len));
2755 param_len = 4;
2756 SIVAL(params,0,data_len);
2757 data_len = 0;
2758 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2759 break;
2760 }
2761
2762 sid_parse(pdata+8,sid_len,&sid);
2763
2764 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2765 ZERO_STRUCT(qt);
2766 /*
2767 * we have to return zero's in all fields
2768 * instead of returning an error here
2769 * --metze
2770 */
2771 }
2772
2773 /* Realloc the size of parameters and data we will return */
2774 param_len = 4;
2775 params = nttrans_realloc(ppparams, param_len);
2776 if(params == NULL) {
2777 return ERROR_DOS(ERRDOS,ERRnomem);
2778 }
2779
2780 pdata = nttrans_realloc(ppdata, data_len);
2781 if(pdata == NULL) {
2782 return ERROR_DOS(ERRDOS,ERRnomem);
2783 }
2784
2785 entry = pdata;
2786
2787 /* set params Size of returned Quota Data 4 bytes*/
2788 SIVAL(params,0,data_len);
2789
2790 /* nextoffset entry 4 bytes */
2791 SIVAL(entry,0,0);
2792
2793 /* then the len of the SID 4 bytes */
2794 SIVAL(entry,4,sid_len);
2795
2796 /* unknown data 8 bytes SMB_BIG_UINT */
2797 SBIG_UINT(entry,8,(SMB_BIG_UINT)0); /* this is not 0 in windows...-mezte*/
2798
2799 /* the used disk space 8 bytes SMB_BIG_UINT */
2800 SBIG_UINT(entry,16,qt.usedspace);
2801
2802 /* the soft quotas 8 bytes SMB_BIG_UINT */
2803 SBIG_UINT(entry,24,qt.softlim);
2804
2805 /* the hard quotas 8 bytes SMB_BIG_UINT */
2806 SBIG_UINT(entry,32,qt.hardlim);
2807
2808 /* and now the SID */
2809 sid_linearize(entry+40, sid_len, &sid);
2810
2811 break;
2812
2813 default:
2814 DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2815 return ERROR_DOS(ERRSRV,ERRerror);
2816 break;
2817 }
2818
2819 send_nt_replies(inbuf, outbuf, bufsize, nt_status, params, param_len,
2820 pdata, data_len);
2821
2822 return -1;
2823 }
2824
2825 /****************************************************************************
2826 Reply to set user quota
2827 ****************************************************************************/
2828
2829 static int call_nt_transact_set_user_quota(connection_struct *conn, char *inbuf, char *outbuf, int length, int bufsize,
2830 uint16 **ppsetup, uint32 setup_count,
2831 char **ppparams, uint32 parameter_count,
2832 char **ppdata, uint32 data_count, uint32 max_data_count)
2833 {
2834 char *params = *ppparams;
2835 char *pdata = *ppdata;
2836 int data_len=0,param_len=0;
2837 SMB_NTQUOTA_STRUCT qt;
2838 size_t sid_len;
2839 DOM_SID sid;
2840 files_struct *fsp = NULL;
2841
2842 ZERO_STRUCT(qt);
2843
2844 /* access check */
2845 if (current_user.ut.uid != 0) {
2846 DEBUG(1,("set_user_quota: access_denied service [%s] user [%s]\n",
2847 lp_servicename(SNUM(conn)),conn->user));
2848 return ERROR_DOS(ERRDOS,ERRnoaccess);
2849 }
2850
2851 /*
2852 * Ensure minimum number of parameters sent.
2853 */
2854
2855 if (parameter_count < 2) {
2856 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2857 return ERROR_DOS(ERRDOS,ERRinvalidparam);
2858 }
2859
2860 /* maybe we can check the quota_fnum */
2861 fsp = file_fsp(params,0);
2862 if (!CHECK_NTQUOTA_HANDLE_OK(fsp,conn)) {
2863 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2864 return ERROR_NT(NT_STATUS_INVALID_HANDLE);
2865 }
2866
2867 if (data_count < 40) {
2868 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2869 return ERROR_DOS(ERRDOS,ERRunknownlevel);
2870 }
2871
2872 /* offset to next quota record.
2873 * 4 bytes IVAL(pdata,0)
2874 * unused here...
2875 */
2876
2877 /* sid len */
2878 sid_len = IVAL(pdata,4);
2879
2880 if (data_count < 40+sid_len) {
2881 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2882 return ERROR_DOS(ERRDOS,ERRunknownlevel);
2883 }
2884
2885 /* unknown 8 bytes in pdata
2886 * maybe its the change time in NTTIME
2887 */
2888
2889 /* the used space 8 bytes (SMB_BIG_UINT)*/
2890 qt.usedspace = (SMB_BIG_UINT)IVAL(pdata,16);
2891 #ifdef LARGE_SMB_OFF_T
2892 qt.usedspace |= (((SMB_BIG_UINT)IVAL(pdata,20)) << 32);
2893 #else /* LARGE_SMB_OFF_T */
2894 if ((IVAL(pdata,20) != 0)&&
2895 ((qt.usedspace != 0xFFFFFFFF)||
2896 (IVAL(pdata,20)!=0xFFFFFFFF))) {
2897 /* more than 32 bits? */
2898 return ERROR_DOS(ERRDOS,ERRunknownlevel);
2899 }
2900 #endif /* LARGE_SMB_OFF_T */
2901
2902 /* the soft quotas 8 bytes (SMB_BIG_UINT)*/
2903 qt.softlim = (SMB_BIG_UINT)IVAL(pdata,24);
2904 #ifdef LARGE_SMB_OFF_T
2905 qt.softlim |= (((SMB_BIG_UINT)IVAL(pdata,28)) << 32);
2906 #else /* LARGE_SMB_OFF_T */
2907 if ((IVAL(pdata,28) != 0)&&
2908 ((qt.softlim != 0xFFFFFFFF)||
2909 (IVAL(pdata,28)!=0xFFFFFFFF))) {
2910 /* more than 32 bits? */
2911 return ERROR_DOS(ERRDOS,ERRunknownlevel);
2912 }
2913 #endif /* LARGE_SMB_OFF_T */
2914
2915 /* the hard quotas 8 bytes (SMB_BIG_UINT)*/
2916 qt.hardlim = (SMB_BIG_UINT)IVAL(pdata,32);
2917 #ifdef LARGE_SMB_OFF_T
2918 qt.hardlim |= (((SMB_BIG_UINT)IVAL(pdata,36)) << 32);
2919 #else /* LARGE_SMB_OFF_T */
2920 if ((IVAL(pdata,36) != 0)&&
2921 ((qt.hardlim != 0xFFFFFFFF)||
2922 (IVAL(pdata,36)!=0xFFFFFFFF))) {
2923 /* more than 32 bits? */
2924 return ERROR_DOS(ERRDOS,ERRunknownlevel);
2925 }
2926 #endif /* LARGE_SMB_OFF_T */
2927
2928 sid_parse(pdata+40,sid_len,&sid);
2929 DEBUGADD(8,("SID: %s\n",sid_string_static(&sid)));
2930
2931 /* 44 unknown bytes left... */
2932
2933 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2934 return ERROR_DOS(ERRSRV,ERRerror);
2935 }
2936
2937 send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, params, param_len,
2938 pdata, data_len);
2939
2940 return -1;
2941 }
2942 #endif /* HAVE_SYS_QUOTAS */
2943
2944 static int handle_nttrans(connection_struct *conn,
2945 struct trans_state *state,
2946 char *inbuf, char *outbuf, int size, int bufsize)
2947 {
2948 int outsize;
2949
2950 if (Protocol >= PROTOCOL_NT1) {
2951 SSVAL(outbuf,smb_flg2,SVAL(outbuf,smb_flg2) | 0x40); /* IS_LONG_NAME */
2952 }
2953
2954 /* Now we must call the relevant NT_TRANS function */
2955 switch(state->call) {
2956 case NT_TRANSACT_CREATE:
2957 {
2958 START_PROFILE(NT_transact_create);
2959 outsize = call_nt_transact_create(conn, inbuf, outbuf,
2960 size, bufsize,
2961 &state->setup, state->setup_count,
2962 &state->param, state->total_param,
2963 &state->data, state->total_data,
2964 state->max_data_return);
2965 END_PROFILE(NT_transact_create);
2966 break;
2967 }
2968
2969 case NT_TRANSACT_IOCTL:
2970 {
2971 START_PROFILE(NT_transact_ioctl);
2972 outsize = call_nt_transact_ioctl(conn, inbuf, outbuf,
2973 size, bufsize,
2974 &state->setup, state->setup_count,
2975 &state->param, state->total_param,
2976 &state->data, state->total_data, state->max_data_return);
2977 END_PROFILE(NT_transact_ioctl);
2978 break;
2979 }
2980
2981 case NT_TRANSACT_SET_SECURITY_DESC:
2982 {
2983 START_PROFILE(NT_transact_set_security_desc);
2984 outsize = call_nt_transact_set_security_desc(conn, inbuf, outbuf,
2985 size, bufsize,
2986 &state->setup, state->setup_count,
2987 &state->param, state->total_param,
2988 &state->data, state->total_data, state->max_data_return);
2989 END_PROFILE(NT_transact_set_security_desc);
2990 break;
2991 }
2992
2993 case NT_TRANSACT_NOTIFY_CHANGE:
2994 {
2995 START_PROFILE(NT_transact_notify_change);
2996 outsize = call_nt_transact_notify_change(
2997 conn, inbuf, outbuf, size, bufsize,
2998 &state->setup, state->setup_count,
2999 &state->param, state->total_param,
3000 &state->data, state->total_data,
3001 state->max_data_return,
3002 state->max_param_return);
3003 END_PROFILE(NT_transact_notify_change);
3004 break;
3005 }
3006
3007 case NT_TRANSACT_RENAME:
3008 {
3009 START_PROFILE(NT_transact_rename);
3010 outsize = call_nt_transact_rename(conn, inbuf, outbuf,
3011 size, bufsize,
3012 &state->setup, state->setup_count,
3013 &state->param, state->total_param,
3014 &state->data, state->total_data, state->max_data_return);
3015 END_PROFILE(NT_transact_rename);
3016 break;
3017 }
3018
3019 case NT_TRANSACT_QUERY_SECURITY_DESC:
3020 {
3021 START_PROFILE(NT_transact_query_security_desc);
3022 outsize = call_nt_transact_query_security_desc(conn, inbuf, outbuf,
3023 size, bufsize,
3024 &state->setup, state->setup_count,
3025 &state->param, state->total_param,
3026 &state->data, state->total_data, state->max_data_return);
3027 END_PROFILE(NT_transact_query_security_desc);
3028 break;
3029 }
3030
3031 #ifdef HAVE_SYS_QUOTAS
3032 case NT_TRANSACT_GET_USER_QUOTA:
3033 {
3034 START_PROFILE(NT_transact_get_user_quota);
3035 outsize = call_nt_transact_get_user_quota(conn, inbuf, outbuf,
3036 size, bufsize,
3037 &state->setup, state->setup_count,
3038 &state->param, state->total_param,
3039 &state->data, state->total_data, state->max_data_return);
3040 END_PROFILE(NT_transact_get_user_quota);
3041 break;
3042 }
3043
3044 case NT_TRANSACT_SET_USER_QUOTA:
3045 {
3046 START_PROFILE(NT_transact_set_user_quota);
3047 outsize = call_nt_transact_set_user_quota(conn, inbuf, outbuf,
3048 size, bufsize,
3049 &state->setup, state->setup_count,
3050 &state->param, state->total_param,
3051 &state->data, state->total_data, state->max_data_return);
3052 END_PROFILE(NT_transact_set_user_quota);
3053 break;
3054 }
3055 #endif /* HAVE_SYS_QUOTAS */
3056
3057 default:
3058 /* Error in request */
3059 DEBUG(0,("reply_nttrans: Unknown request %d in nttrans call\n",
3060 state->call));
3061 return ERROR_DOS(ERRSRV,ERRerror);
3062 }
3063 return outsize;
3064 }
3065
3066 /****************************************************************************
3067 Reply to a SMBNTtrans.
3068 ****************************************************************************/
3069
3070 int reply_nttrans(connection_struct *conn,
3071 char *inbuf,char *outbuf,int size,int bufsize)
3072 {
3073 int outsize = 0;
3074 uint32 pscnt = IVAL(inbuf,smb_nt_ParameterCount);
3075 uint32 psoff = IVAL(inbuf,smb_nt_ParameterOffset);
3076 uint32 dscnt = IVAL(inbuf,smb_nt_DataCount);
3077 uint32 dsoff = IVAL(inbuf,smb_nt_DataOffset);
3078
3079 uint16 function_code = SVAL( inbuf, smb_nt_Function);
3080 NTSTATUS result;
3081 struct trans_state *state;
3082
3083 START_PROFILE(SMBnttrans);
3084
3085 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
3086 END_PROFILE(SMBnttrans);
3087 return ERROR_DOS(ERRSRV,ERRaccess);
3088 }
3089
3090 result = allow_new_trans(conn->pending_trans, SVAL(inbuf, smb_mid));
3091 if (!NT_STATUS_IS_OK(result)) {
3092 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
3093 END_PROFILE(SMBnttrans);
3094 return ERROR_NT(result);
3095 }
3096
3097 if ((state = TALLOC_P(conn->mem_ctx, struct trans_state)) == NULL) {
3098 END_PROFILE(SMBnttrans);
3099 return ERROR_DOS(ERRSRV,ERRaccess);
3100 }
3101
3102 state->cmd = SMBnttrans;
3103
3104 state->mid = SVAL(inbuf,smb_mid);
3105 state->vuid = SVAL(inbuf,smb_uid);
3106 state->total_data = IVAL(inbuf, smb_nt_TotalDataCount);
3107 state->data = NULL;
3108 state->total_param = IVAL(inbuf, smb_nt_TotalParameterCount);
3109 state->param = NULL;
3110 state->max_data_return = IVAL(inbuf,smb_nt_MaxDataCount);
3111 state->max_param_return = IVAL(inbuf,smb_nt_MaxParameterCount);
3112
3113 /* setup count is in *words* */
3114 state->setup_count = 2*CVAL(inbuf,smb_nt_SetupCount);
3115 state->setup = NULL;
3116 state->call = function_code;
3117
3118 /*
3119 * All nttrans messages we handle have smb_wct == 19 +
3120 * state->setup_count. Ensure this is so as a sanity check.
3121 */
3122
3123 if(CVAL(inbuf, smb_wct) != 19 + (state->setup_count/2)) {
3124 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
3125 CVAL(inbuf, smb_wct), 19 + (state->setup_count/2)));
3126 goto bad_param;
3127 }
3128
3129 /* Don't allow more than 128mb for each value. */
3130 if ((state->total_data > (1024*1024*128)) ||
3131 (state->total_param > (1024*1024*128))) {
3132 END_PROFILE(SMBnttrans);
3133 return ERROR_DOS(ERRDOS,ERRnomem);
3134 }
3135
3136 if ((dscnt > state->total_data) || (pscnt > state->total_param))
3137 goto bad_param;
3138
3139 if (state->total_data) {
3140 /* Can't use talloc here, the core routines do realloc on the
3141 * params and data. */
3142 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
3143 DEBUG(0,("reply_nttrans: data malloc fail for %u "
3144 "bytes !\n", (unsigned int)state->total_data));
3145 TALLOC_FREE(state);
3146 END_PROFILE(SMBnttrans);
3147 return(ERROR_DOS(ERRDOS,ERRnomem));
3148 }
3149 if ((dsoff+dscnt < dsoff) || (dsoff+dscnt < dscnt))
3150 goto bad_param;
3151 if ((smb_base(inbuf)+dsoff+dscnt > inbuf + size) ||
3152 (smb_base(inbuf)+dsoff+dscnt < smb_base(inbuf)))
3153 goto bad_param;
3154
3155 memcpy(state->data,smb_base(inbuf)+dsoff,dscnt);
3156 }
3157
3158 if (state->total_param) {
3159 /* Can't use talloc here, the core routines do realloc on the
3160 * params and data. */
3161 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
3162 DEBUG(0,("reply_nttrans: param malloc fail for %u "
3163 "bytes !\n", (unsigned int)state->total_param));
3164 SAFE_FREE(state->data);
3165 TALLOC_FREE(state);
3166 END_PROFILE(SMBnttrans);
3167 return(ERROR_DOS(ERRDOS,ERRnomem));
3168 }
3169 if ((psoff+pscnt < psoff) || (psoff+pscnt < pscnt))
3170 goto bad_param;
3171 if ((smb_base(inbuf)+psoff+pscnt > inbuf + size) ||
3172 (smb_base(inbuf)+psoff+pscnt < smb_base(inbuf)))
3173 goto bad_param;
3174
3175 memcpy(state->param,smb_base(inbuf)+psoff,pscnt);
3176 }
3177
3178 state->received_data = dscnt;
3179 state->received_param = pscnt;
3180
3181 if(state->setup_count > 0) {
3182 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
3183 state->setup_count));
3184 state->setup = (uint16 *)TALLOC(state, state->setup_count);
3185 if (state->setup == NULL) {
3186 DEBUG(0,("reply_nttrans : Out of memory\n"));
3187 SAFE_FREE(state->data);
3188 SAFE_FREE(state->param);
3189 TALLOC_FREE(state);
3190 END_PROFILE(SMBnttrans);
3191 return ERROR_DOS(ERRDOS,ERRnomem);
3192 }
3193
3194 if ((smb_nt_SetupStart + state->setup_count < smb_nt_SetupStart) ||
3195 (smb_nt_SetupStart + state->setup_count < state->setup_count)) {
3196 goto bad_param;
3197 }
3198 if (smb_nt_SetupStart + state->setup_count > size) {
3199 goto bad_param;
3200 }
3201
3202 memcpy( state->setup, &inbuf[smb_nt_SetupStart], state->setup_count);
3203 dump_data(10, (uint8 *)state->setup, state->setup_count);
3204 }
3205
3206 if ((state->received_data == state->total_data) &&
3207 (state->received_param == state->total_param)) {
3208 outsize = handle_nttrans(conn, state, inbuf, outbuf,
3209 size, bufsize);
3210 SAFE_FREE(state->param);
3211 SAFE_FREE(state->data);
3212 TALLOC_FREE(state);
3213 END_PROFILE(SMBnttrans);
3214 return outsize;
3215 }
3216
3217 DLIST_ADD(conn->pending_trans, state);
3218
3219 /* We need to send an interim response then receive the rest
3220 of the parameter/data bytes */
3221 outsize = set_message(inbuf,outbuf,0,0,False);
3222 show_msg(outbuf);
3223 END_PROFILE(SMBnttrans);
3224 return outsize;
3225
3226 bad_param:
3227
3228 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
3229 SAFE_FREE(state->data);
3230 SAFE_FREE(state->param);
3231 TALLOC_FREE(state);
3232 END_PROFILE(SMBnttrans);
3233 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
3234 }
3235
3236 /****************************************************************************
3237 Reply to a SMBnttranss
3238 ****************************************************************************/
3239
3240 int reply_nttranss(connection_struct *conn, char *inbuf,char *outbuf,
3241 int size,int bufsize)
3242 {
3243 int outsize = 0;
3244 unsigned int pcnt,poff,dcnt,doff,pdisp,ddisp;
3245 struct trans_state *state;
3246
3247 START_PROFILE(SMBnttranss);
3248
3249 show_msg(inbuf);
3250
3251 for (state = conn->pending_trans; state != NULL;
3252 state = state->next) {
3253 if (state->mid == SVAL(inbuf,smb_mid)) {
3254 break;
3255 }
3256 }
3257
3258 if ((state == NULL) || (state->cmd != SMBnttrans)) {
3259 END_PROFILE(SMBnttranss);
3260 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
3261 }
3262
3263 /* Revise state->total_param and state->total_data in case they have
3264 changed downwards */
3265 if (IVAL(inbuf, smb_nts_TotalParameterCount) < state->total_param) {
3266 state->total_param = IVAL(inbuf, smb_nts_TotalParameterCount);
3267 }
3268 if (IVAL(inbuf, smb_nts_TotalDataCount) < state->total_data) {
3269 state->total_data = IVAL(inbuf, smb_nts_TotalDataCount);
3270 }
3271
3272 pcnt = IVAL(inbuf,smb_nts_ParameterCount);
3273 poff = IVAL(inbuf, smb_nts_ParameterOffset);
3274 pdisp = IVAL(inbuf, smb_nts_ParameterDisplacement);
3275
3276 dcnt = IVAL(inbuf, smb_nts_DataCount);
3277 ddisp = IVAL(inbuf, smb_nts_DataDisplacement);
3278 doff = IVAL(inbuf, smb_nts_DataOffset);
3279
3280 state->received_param += pcnt;
3281 state->received_data += dcnt;
3282
3283 if ((state->received_data > state->total_data) ||
3284 (state->received_param > state->total_param))
3285 goto bad_param;
3286
3287 if (pcnt) {
3288 if (pdisp+pcnt > state->total_param)
3289 goto bad_param;
3290 if ((pdisp+pcnt < pdisp) || (pdisp+pcnt < pcnt))
3291 goto bad_param;
3292 if (pdisp > state->total_param)
3293 goto bad_param;
3294 if ((smb_base(inbuf) + poff + pcnt > inbuf + size) ||
3295 (smb_base(inbuf) + poff + pcnt < smb_base(inbuf)))
3296 goto bad_param;
3297 if (state->param + pdisp < state->param)
3298 goto bad_param;
3299
3300 memcpy(state->param+pdisp,smb_base(inbuf)+poff,
3301 pcnt);
3302 }
3303
3304 if (dcnt) {
3305 if (ddisp+dcnt > state->total_data)
3306 goto bad_param;
3307 if ((ddisp+dcnt < ddisp) || (ddisp+dcnt < dcnt))
3308 goto bad_param;
3309 if (ddisp > state->total_data)
3310 goto bad_param;
3311 if ((smb_base(inbuf) + doff + dcnt > inbuf + size) ||
3312 (smb_base(inbuf) + doff + dcnt < smb_base(inbuf)))
3313 goto bad_param;
3314 if (state->data + ddisp < state->data)
3315 goto bad_param;
3316
3317 memcpy(state->data+ddisp, smb_base(inbuf)+doff,
3318 dcnt);
3319 }
3320
3321 if ((state->received_param < state->total_param) ||
3322 (state->received_data < state->total_data)) {
3323 END_PROFILE(SMBnttranss);
3324 return -1;
3325 }
3326
3327 /* construct_reply_common has done us the favor to pre-fill the
3328 * command field with SMBnttranss which is wrong :-)
3329 */
3330 SCVAL(outbuf,smb_com,SMBnttrans);
3331
3332 outsize = handle_nttrans(conn, state, inbuf, outbuf,
3333 size, bufsize);
3334
3335 DLIST_REMOVE(conn->pending_trans, state);
3336 SAFE_FREE(state->data);
3337 SAFE_FREE(state->param);
3338 TALLOC_FREE(state);
3339
3340 if (outsize == 0) {
3341 END_PROFILE(SMBnttranss);
3342 return(ERROR_DOS(ERRSRV,ERRnosupport));
3343 }
3344
3345 END_PROFILE(SMBnttranss);
3346 return(outsize);
3347
3348 bad_param:
3349
3350 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
3351 DLIST_REMOVE(conn->pending_trans, state);
3352 SAFE_FREE(state->data);
3353 SAFE_FREE(state->param);
3354 TALLOC_FREE(state);
3355 END_PROFILE(SMBnttranss);
3356 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
3357 }
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