Sync to the changes in head ...
[Samba/gbeck.git] / source3 / smbd / nttrans.c
blob9f7fabb75e44225942db0936926e2c6dedeb8d95
1 /*
2 Unix SMB/CIFS implementation.
3 SMB NT transaction handling
4 Copyright (C) Jeremy Allison 1994-1998
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #include "includes.h"
23 extern int Protocol;
24 extern int smb_read_error;
25 extern int global_oplock_break;
26 extern BOOL case_sensitive;
27 extern BOOL case_preserve;
28 extern BOOL short_case_preserve;
30 static const char *known_nt_pipes[] = {
31 "\\LANMAN",
32 "\\srvsvc",
33 "\\samr",
34 "\\wkssvc",
35 "\\NETLOGON",
36 "\\ntlsa",
37 "\\ntsvcs",
38 "\\lsass",
39 "\\lsarpc",
40 "\\winreg",
41 "\\spoolss",
42 "\\netdfs",
43 "\\rpcecho",
44 NULL
47 /* Map generic permissions to file object specific permissions */
49 struct generic_mapping file_generic_mapping = {
50 FILE_GENERIC_READ,
51 FILE_GENERIC_WRITE,
52 FILE_GENERIC_EXECUTE,
53 FILE_GENERIC_ALL
56 /****************************************************************************
57 Send the required number of replies back.
58 We assume all fields other than the data fields are
59 set correctly for the type of call.
60 HACK ! Always assumes smb_setup field is zero.
61 ****************************************************************************/
63 static int send_nt_replies(char *inbuf, char *outbuf, int bufsize, NTSTATUS nt_error, char *params,
64 int paramsize, char *pdata, int datasize)
66 extern int max_send;
67 int data_to_send = datasize;
68 int params_to_send = paramsize;
69 int useable_space;
70 char *pp = params;
71 char *pd = pdata;
72 int params_sent_thistime, data_sent_thistime, total_sent_thistime;
73 int alignment_offset = 3;
74 int data_alignment_offset = 0;
77 * Initially set the wcnt area to be 18 - this is true for all
78 * transNT replies.
81 set_message(outbuf,18,0,True);
83 if (NT_STATUS_V(nt_error))
84 ERROR_NT(nt_error);
86 /*
87 * If there genuinely are no parameters or data to send just send
88 * the empty packet.
91 if(params_to_send == 0 && data_to_send == 0) {
92 if (!send_smb(smbd_server_fd(),outbuf))
93 exit_server("send_nt_replies: send_smb failed.");
94 return 0;
98 * When sending params and data ensure that both are nicely aligned.
99 * Only do this alignment when there is also data to send - else
100 * can cause NT redirector problems.
103 if (((params_to_send % 4) != 0) && (data_to_send != 0))
104 data_alignment_offset = 4 - (params_to_send % 4);
107 * Space is bufsize minus Netbios over TCP header minus SMB header.
108 * The alignment_offset is to align the param bytes on a four byte
109 * boundary (2 bytes for data len, one byte pad).
110 * NT needs this to work correctly.
113 useable_space = bufsize - ((smb_buf(outbuf)+
114 alignment_offset+data_alignment_offset) -
115 outbuf);
118 * useable_space can never be more than max_send minus the
119 * alignment offset.
122 useable_space = MIN(useable_space,
123 max_send - (alignment_offset+data_alignment_offset));
126 while (params_to_send || data_to_send) {
129 * Calculate whether we will totally or partially fill this packet.
132 total_sent_thistime = params_to_send + data_to_send +
133 alignment_offset + data_alignment_offset;
136 * We can never send more than useable_space.
139 total_sent_thistime = MIN(total_sent_thistime, useable_space);
141 set_message(outbuf, 18, total_sent_thistime, True);
144 * Set total params and data to be sent.
147 SIVAL(outbuf,smb_ntr_TotalParameterCount,paramsize);
148 SIVAL(outbuf,smb_ntr_TotalDataCount,datasize);
151 * Calculate how many parameters and data we can fit into
152 * this packet. Parameters get precedence.
155 params_sent_thistime = MIN(params_to_send,useable_space);
156 data_sent_thistime = useable_space - params_sent_thistime;
157 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
159 SIVAL(outbuf,smb_ntr_ParameterCount,params_sent_thistime);
161 if(params_sent_thistime == 0) {
162 SIVAL(outbuf,smb_ntr_ParameterOffset,0);
163 SIVAL(outbuf,smb_ntr_ParameterDisplacement,0);
164 } else {
166 * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
167 * parameter bytes, however the first 4 bytes of outbuf are
168 * the Netbios over TCP header. Thus use smb_base() to subtract
169 * them from the calculation.
172 SIVAL(outbuf,smb_ntr_ParameterOffset,
173 ((smb_buf(outbuf)+alignment_offset) - smb_base(outbuf)));
175 * Absolute displacement of param bytes sent in this packet.
178 SIVAL(outbuf,smb_ntr_ParameterDisplacement,pp - params);
182 * Deal with the data portion.
185 SIVAL(outbuf,smb_ntr_DataCount, data_sent_thistime);
187 if(data_sent_thistime == 0) {
188 SIVAL(outbuf,smb_ntr_DataOffset,0);
189 SIVAL(outbuf,smb_ntr_DataDisplacement, 0);
190 } else {
192 * The offset of the data bytes is the offset of the
193 * parameter bytes plus the number of parameters being sent this time.
196 SIVAL(outbuf,smb_ntr_DataOffset,((smb_buf(outbuf)+alignment_offset) -
197 smb_base(outbuf)) + params_sent_thistime + data_alignment_offset);
198 SIVAL(outbuf,smb_ntr_DataDisplacement, pd - pdata);
202 * Copy the param bytes into the packet.
205 if(params_sent_thistime)
206 memcpy((smb_buf(outbuf)+alignment_offset),pp,params_sent_thistime);
209 * Copy in the data bytes
212 if(data_sent_thistime)
213 memcpy(smb_buf(outbuf)+alignment_offset+params_sent_thistime+
214 data_alignment_offset,pd,data_sent_thistime);
216 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
217 params_sent_thistime, data_sent_thistime, useable_space));
218 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
219 params_to_send, data_to_send, paramsize, datasize));
221 /* Send the packet */
222 if (!send_smb(smbd_server_fd(),outbuf))
223 exit_server("send_nt_replies: send_smb failed.");
225 pp += params_sent_thistime;
226 pd += data_sent_thistime;
228 params_to_send -= params_sent_thistime;
229 data_to_send -= data_sent_thistime;
232 * Sanity check
235 if(params_to_send < 0 || data_to_send < 0) {
236 DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
237 params_to_send, data_to_send));
238 return -1;
242 return 0;
245 /****************************************************************************
246 Save case statics.
247 ****************************************************************************/
249 static BOOL saved_case_sensitive;
250 static BOOL saved_case_preserve;
251 static BOOL saved_short_case_preserve;
253 /****************************************************************************
254 Save case semantics.
255 ****************************************************************************/
257 static void set_posix_case_semantics(uint32 file_attributes)
259 if(!(file_attributes & FILE_FLAG_POSIX_SEMANTICS))
260 return;
262 saved_case_sensitive = case_sensitive;
263 saved_case_preserve = case_preserve;
264 saved_short_case_preserve = short_case_preserve;
266 /* Set to POSIX. */
267 case_sensitive = True;
268 case_preserve = True;
269 short_case_preserve = True;
272 /****************************************************************************
273 Restore case semantics.
274 ****************************************************************************/
276 static void restore_case_semantics(uint32 file_attributes)
278 if(!(file_attributes & FILE_FLAG_POSIX_SEMANTICS))
279 return;
281 case_sensitive = saved_case_sensitive;
282 case_preserve = saved_case_preserve;
283 short_case_preserve = saved_short_case_preserve;
286 /****************************************************************************
287 Utility function to map create disposition.
288 ****************************************************************************/
290 static int map_create_disposition( uint32 create_disposition)
292 int ret;
294 switch( create_disposition ) {
295 case FILE_CREATE:
296 /* create if not exist, fail if exist */
297 ret = (FILE_CREATE_IF_NOT_EXIST|FILE_EXISTS_FAIL);
298 break;
299 case FILE_SUPERSEDE:
300 case FILE_OVERWRITE_IF:
301 /* create if not exist, trunc if exist */
302 ret = (FILE_CREATE_IF_NOT_EXIST|FILE_EXISTS_TRUNCATE);
303 break;
304 case FILE_OPEN:
305 /* fail if not exist, open if exists */
306 ret = (FILE_FAIL_IF_NOT_EXIST|FILE_EXISTS_OPEN);
307 break;
308 case FILE_OPEN_IF:
309 /* create if not exist, open if exists */
310 ret = (FILE_CREATE_IF_NOT_EXIST|FILE_EXISTS_OPEN);
311 break;
312 case FILE_OVERWRITE:
313 /* fail if not exist, truncate if exists */
314 ret = (FILE_FAIL_IF_NOT_EXIST|FILE_EXISTS_TRUNCATE);
315 break;
316 default:
317 DEBUG(0,("map_create_disposition: Incorrect value for create_disposition = %d\n",
318 create_disposition ));
319 return -1;
322 DEBUG(10,("map_create_disposition: Mapped create_disposition 0x%lx to 0x%x\n",
323 (unsigned long)create_disposition, ret ));
325 return ret;
328 /****************************************************************************
329 Utility function to map share modes.
330 ****************************************************************************/
332 static int map_share_mode( char *fname, uint32 create_options,
333 uint32 *desired_access, uint32 share_access, uint32 file_attributes)
335 int smb_open_mode = -1;
338 * Convert GENERIC bits to specific bits.
341 se_map_generic(desired_access, &file_generic_mapping);
343 switch( *desired_access & (FILE_READ_DATA|FILE_WRITE_DATA|FILE_APPEND_DATA) ) {
344 case FILE_READ_DATA:
345 smb_open_mode = DOS_OPEN_RDONLY;
346 break;
347 case FILE_WRITE_DATA:
348 case FILE_APPEND_DATA:
349 case FILE_WRITE_DATA|FILE_APPEND_DATA:
350 smb_open_mode = DOS_OPEN_WRONLY;
351 break;
352 case FILE_READ_DATA|FILE_WRITE_DATA:
353 case FILE_READ_DATA|FILE_WRITE_DATA|FILE_APPEND_DATA:
354 case FILE_READ_DATA|FILE_APPEND_DATA:
355 smb_open_mode = DOS_OPEN_RDWR;
356 break;
360 * NB. For DELETE_ACCESS we should really check the
361 * directory permissions, as that is what controls
362 * delete, and for WRITE_DAC_ACCESS we should really
363 * check the ownership, as that is what controls the
364 * chmod. Note that this is *NOT* a security hole (this
365 * note is for you, Andrew) as we are not *allowing*
366 * the access at this point, the actual unlink or
367 * chown or chmod call would do this. We are just helping
368 * clients out by telling them if they have a hope
369 * of any of this succeeding. POSIX acls may still
370 * deny the real call. JRA.
373 if (smb_open_mode == -1) {
375 if(*desired_access & (DELETE_ACCESS|WRITE_DAC_ACCESS|WRITE_OWNER_ACCESS|SYNCHRONIZE_ACCESS|
376 FILE_EXECUTE|FILE_READ_ATTRIBUTES|
377 FILE_READ_EA|FILE_WRITE_EA|SYSTEM_SECURITY_ACCESS|
378 FILE_WRITE_ATTRIBUTES|READ_CONTROL_ACCESS)) {
379 smb_open_mode = DOS_OPEN_RDONLY;
380 } else if(*desired_access == 0) {
383 * JRA - NT seems to sometimes send desired_access as zero. play it safe
384 * and map to a stat open.
387 smb_open_mode = DOS_OPEN_RDONLY;
389 } else {
390 DEBUG(0,("map_share_mode: Incorrect value 0x%lx for desired_access to file %s\n",
391 (unsigned long)*desired_access, fname));
392 return -1;
397 * Set the special bit that means allow share delete.
398 * This is held outside the normal share mode bits at 1<<15.
399 * JRA.
402 if(share_access & FILE_SHARE_DELETE) {
403 smb_open_mode |= ALLOW_SHARE_DELETE;
404 DEBUG(10,("map_share_mode: FILE_SHARE_DELETE requested. open_mode = 0x%x\n", smb_open_mode));
408 * We need to store the intent to open for Delete. This
409 * is what determines if a delete on close flag can be set.
410 * This is the wrong way (and place) to store this, but for 2.2 this
411 * is the only practical way. JRA.
414 if(*desired_access & DELETE_ACCESS) {
415 DEBUG(10,("map_share_mode: DELETE_ACCESS requested. open_mode = 0x%x\n", smb_open_mode));
418 if (create_options & FILE_DELETE_ON_CLOSE) {
419 /* Implicit delete access is *NOT* requested... */
420 smb_open_mode |= DELETE_ON_CLOSE_FLAG;
421 DEBUG(10,("map_share_mode: FILE_DELETE_ON_CLOSE requested. open_mode = 0x%x\n", smb_open_mode));
424 /* Add in the requested share mode. */
425 switch( share_access & (FILE_SHARE_READ|FILE_SHARE_WRITE)) {
426 case FILE_SHARE_READ:
427 smb_open_mode |= SET_DENY_MODE(DENY_WRITE);
428 break;
429 case FILE_SHARE_WRITE:
430 smb_open_mode |= SET_DENY_MODE(DENY_READ);
431 break;
432 case (FILE_SHARE_READ|FILE_SHARE_WRITE):
433 smb_open_mode |= SET_DENY_MODE(DENY_NONE);
434 break;
435 case FILE_SHARE_NONE:
436 smb_open_mode |= SET_DENY_MODE(DENY_ALL);
437 break;
441 * Handle an O_SYNC request.
444 if(file_attributes & FILE_FLAG_WRITE_THROUGH)
445 smb_open_mode |= FILE_SYNC_OPENMODE;
447 DEBUG(10,("map_share_mode: Mapped desired access 0x%lx, share access 0x%lx, file attributes 0x%lx \
448 to open_mode 0x%x\n", (unsigned long)*desired_access, (unsigned long)share_access,
449 (unsigned long)file_attributes, smb_open_mode ));
451 return smb_open_mode;
454 /****************************************************************************
455 Reply to an NT create and X call on a pipe.
456 ****************************************************************************/
458 static int nt_open_pipe(char *fname, connection_struct *conn,
459 char *inbuf, char *outbuf, int *ppnum)
461 smb_np_struct *p = NULL;
463 uint16 vuid = SVAL(inbuf, smb_uid);
464 int i;
466 DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
468 /* See if it is one we want to handle. */
470 if (lp_disable_spoolss() && strequal(fname, "\\spoolss"))
471 return(ERROR_BOTH(NT_STATUS_OBJECT_NAME_NOT_FOUND,ERRDOS,ERRbadpipe));
473 for( i = 0; known_nt_pipes[i]; i++ )
474 if( strequal(fname,known_nt_pipes[i]))
475 break;
477 if ( known_nt_pipes[i] == NULL )
478 return(ERROR_BOTH(NT_STATUS_OBJECT_NAME_NOT_FOUND,ERRDOS,ERRbadpipe));
480 /* Strip \\ off the name. */
481 fname++;
483 DEBUG(3,("nt_open_pipe: Known pipe %s opening.\n", fname));
485 p = open_rpc_pipe_p(fname, conn, vuid);
486 if (!p)
487 return(ERROR_DOS(ERRSRV,ERRnofids));
489 *ppnum = p->pnum;
491 return 0;
494 /****************************************************************************
495 Reply to an NT create and X call for pipes.
496 ****************************************************************************/
498 static int do_ntcreate_pipe_open(connection_struct *conn,
499 char *inbuf,char *outbuf,int length,int bufsize)
501 pstring fname;
502 int ret;
503 int pnum = -1;
504 char *p = NULL;
506 srvstr_pull_buf(inbuf, fname, smb_buf(inbuf), sizeof(fname), STR_TERMINATE);
508 if ((ret = nt_open_pipe(fname, conn, inbuf, outbuf, &pnum)) != 0)
509 return ret;
512 * Deal with pipe return.
515 set_message(outbuf,34,0,True);
517 p = outbuf + smb_vwv2;
518 p++;
519 SSVAL(p,0,pnum);
520 p += 2;
521 SIVAL(p,0,FILE_WAS_OPENED);
522 p += 4;
523 p += 32;
524 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
525 p += 20;
526 /* File type. */
527 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
528 /* Device state. */
529 SSVAL(p,2, 0x5FF); /* ? */
531 DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
533 return chain_reply(inbuf,outbuf,length,bufsize);
536 /****************************************************************************
537 Reply to an NT create and X call.
538 ****************************************************************************/
540 int reply_ntcreate_and_X(connection_struct *conn,
541 char *inbuf,char *outbuf,int length,int bufsize)
543 int result;
544 pstring fname;
545 uint32 flags = IVAL(inbuf,smb_ntcreate_Flags);
546 uint32 desired_access = IVAL(inbuf,smb_ntcreate_DesiredAccess);
547 uint32 file_attributes = IVAL(inbuf,smb_ntcreate_FileAttributes);
548 uint32 share_access = IVAL(inbuf,smb_ntcreate_ShareAccess);
549 uint32 create_disposition = IVAL(inbuf,smb_ntcreate_CreateDisposition);
550 uint32 create_options = IVAL(inbuf,smb_ntcreate_CreateOptions);
551 uint16 root_dir_fid = (uint16)IVAL(inbuf,smb_ntcreate_RootDirectoryFid);
552 SMB_BIG_UINT allocation_size = 0;
553 int smb_ofun;
554 int smb_open_mode;
555 int smb_attr = (file_attributes & SAMBA_ATTRIBUTES_MASK);
556 /* Breakout the oplock request bits so we can set the
557 reply bits separately. */
558 int oplock_request = 0;
559 mode_t unixmode;
560 int fmode=0,rmode=0;
561 SMB_OFF_T file_len = 0;
562 SMB_STRUCT_STAT sbuf;
563 int smb_action = 0;
564 BOOL bad_path = False;
565 files_struct *fsp=NULL;
566 char *p = NULL;
567 time_t c_time;
568 BOOL extended_oplock_granted = False;
570 START_PROFILE(SMBntcreateX);
572 DEBUG(10,("reply_ntcreateX: flags = 0x%x, desired_access = 0x%x \
573 file_attributes = 0x%x, share_access = 0x%x, create_disposition = 0x%x \
574 create_options = 0x%x root_dir_fid = 0x%x\n", flags, desired_access, file_attributes,
575 share_access, create_disposition,
576 create_options, root_dir_fid ));
578 /* If it's an IPC, use the pipe handler. */
580 if (IS_IPC(conn)) {
581 if (lp_nt_pipe_support()) {
582 END_PROFILE(SMBntcreateX);
583 return do_ntcreate_pipe_open(conn,inbuf,outbuf,length,bufsize);
584 } else {
585 END_PROFILE(SMBntcreateX);
586 return(ERROR_DOS(ERRDOS,ERRnoaccess));
590 if (create_options & FILE_OPEN_BY_FILE_ID) {
591 END_PROFILE(SMBntcreateX);
592 return ERROR_NT(NT_STATUS_NOT_SUPPORTED);
596 * We need to construct the open_and_X ofun value from the
597 * NT values, as that's what our code is structured to accept.
600 if((smb_ofun = map_create_disposition( create_disposition )) == -1) {
601 END_PROFILE(SMBntcreateX);
602 return(ERROR_DOS(ERRDOS,ERRnoaccess));
606 * Get the file name.
609 if(root_dir_fid != 0) {
611 * This filename is relative to a directory fid.
613 files_struct *dir_fsp = file_fsp(inbuf,smb_ntcreate_RootDirectoryFid);
614 size_t dir_name_len;
616 if(!dir_fsp) {
617 END_PROFILE(SMBntcreateX);
618 return(ERROR_DOS(ERRDOS,ERRbadfid));
621 if(!dir_fsp->is_directory) {
623 srvstr_pull_buf(inbuf, fname, smb_buf(inbuf), sizeof(fname), STR_TERMINATE);
626 * Check to see if this is a mac fork of some kind.
629 if( strchr_m(fname, ':')) {
630 END_PROFILE(SMBntcreateX);
631 return ERROR_NT(NT_STATUS_OBJECT_PATH_NOT_FOUND);
636 we need to handle the case when we get a
637 relative open relative to a file and the
638 pathname is blank - this is a reopen!
639 (hint from demyn plantenberg)
643 END_PROFILE(SMBntcreateX);
644 return(ERROR_DOS(ERRDOS,ERRbadfid));
648 * Copy in the base directory name.
651 pstrcpy( fname, dir_fsp->fsp_name );
652 dir_name_len = strlen(fname);
655 * Ensure it ends in a '\'.
658 if(fname[dir_name_len-1] != '\\' && fname[dir_name_len-1] != '/') {
659 pstrcat(fname, "\\");
660 dir_name_len++;
663 srvstr_pull_buf(inbuf, &fname[dir_name_len], smb_buf(inbuf), sizeof(fname)-dir_name_len, STR_TERMINATE);
664 } else {
665 srvstr_pull_buf(inbuf, fname, smb_buf(inbuf), sizeof(fname), STR_TERMINATE);
668 * Check to see if this is a mac fork of some kind.
671 if( strchr_m(fname, ':')) {
672 END_PROFILE(SMBntcreateX);
673 return ERROR_NT(NT_STATUS_OBJECT_PATH_NOT_FOUND);
678 * Now contruct the smb_open_mode value from the filename,
679 * desired access and the share access.
681 RESOLVE_DFSPATH(fname, conn, inbuf, outbuf);
683 if((smb_open_mode = map_share_mode(fname, create_options, &desired_access,
684 share_access,
685 file_attributes)) == -1) {
686 END_PROFILE(SMBntcreateX);
687 return ERROR_DOS(ERRDOS,ERRnoaccess);
690 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
691 if (oplock_request) {
692 oplock_request |= (flags & REQUEST_BATCH_OPLOCK) ? BATCH_OPLOCK : 0;
696 * Ordinary file or directory.
700 * Check if POSIX semantics are wanted.
703 set_posix_case_semantics(file_attributes);
705 unix_convert(fname,conn,0,&bad_path,&sbuf);
707 unixmode = unix_mode(conn,smb_attr | aARCH, fname);
710 * If it's a request for a directory open, deal with it separately.
713 if(create_options & FILE_DIRECTORY_FILE) {
714 oplock_request = 0;
716 /* Can't open a temp directory. IFS kit test. */
717 if (file_attributes & FILE_ATTRIBUTE_TEMPORARY) {
718 END_PROFILE(SMBntcreateX);
719 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
722 fsp = open_directory(conn, fname, &sbuf, desired_access, smb_open_mode, smb_ofun, unixmode, &smb_action);
724 restore_case_semantics(file_attributes);
726 if(!fsp) {
727 set_bad_path_error(errno, bad_path);
728 END_PROFILE(SMBntcreateX);
729 return(UNIXERROR(ERRDOS,ERRnoaccess));
731 } else {
733 * Ordinary file case.
736 /* NB. We have a potential bug here. If we
737 * cause an oplock break to ourselves, then we
738 * could end up processing filename related
739 * SMB requests whilst we await the oplock
740 * break response. As we may have changed the
741 * filename case semantics to be POSIX-like,
742 * this could mean a filename request could
743 * fail when it should succeed. This is a rare
744 * condition, but eventually we must arrange
745 * to restore the correct case semantics
746 * before issuing an oplock break request to
747 * our client. JRA. */
749 fsp = open_file_shared1(conn,fname,&sbuf,
750 desired_access,
751 smb_open_mode,
752 smb_ofun,unixmode, oplock_request,
753 &rmode,&smb_action);
755 if (!fsp) {
756 /* We cheat here. There are two cases we
757 * care about. One is a directory rename,
758 * where the NT client will attempt to
759 * open the source directory for
760 * DELETE access. Note that when the
761 * NT client does this it does *not*
762 * set the directory bit in the
763 * request packet. This is translated
764 * into a read/write open
765 * request. POSIX states that any open
766 * for write request on a directory
767 * will generate an EISDIR error, so
768 * we can catch this here and open a
769 * pseudo handle that is flagged as a
770 * directory. The second is an open
771 * for a permissions read only, which
772 * we handle in the open_file_stat case. JRA.
775 if(errno == EISDIR) {
778 * Fail the open if it was explicitly a non-directory file.
781 if (create_options & FILE_NON_DIRECTORY_FILE) {
782 restore_case_semantics(file_attributes);
783 SSVAL(outbuf, smb_flg2,
784 SVAL(outbuf,smb_flg2) | FLAGS2_32_BIT_ERROR_CODES);
785 END_PROFILE(SMBntcreateX);
786 return ERROR_NT(NT_STATUS_FILE_IS_A_DIRECTORY);
789 oplock_request = 0;
790 fsp = open_directory(conn, fname, &sbuf, desired_access, smb_open_mode, smb_ofun, unixmode, &smb_action);
792 if(!fsp) {
793 restore_case_semantics(file_attributes);
794 set_bad_path_error(errno, bad_path);
795 END_PROFILE(SMBntcreateX);
796 return(UNIXERROR(ERRDOS,ERRnoaccess));
798 } else {
800 restore_case_semantics(file_attributes);
801 set_bad_path_error(errno, bad_path);
802 END_PROFILE(SMBntcreateX);
803 return(UNIXERROR(ERRDOS,ERRnoaccess));
808 restore_case_semantics(file_attributes);
810 file_len = sbuf.st_size;
811 fmode = dos_mode(conn,fname,&sbuf);
812 if(fmode == 0)
813 fmode = FILE_ATTRIBUTE_NORMAL;
814 if (!fsp->is_directory && (fmode & aDIR)) {
815 close_file(fsp,False);
816 END_PROFILE(SMBntcreateX);
817 return ERROR_DOS(ERRDOS,ERRnoaccess);
820 /* Save the requested allocation size. */
821 allocation_size = (SMB_BIG_UINT)IVAL(inbuf,smb_ntcreate_AllocationSize);
822 #ifdef LARGE_SMB_OFF_T
823 allocation_size |= (((SMB_BIG_UINT)IVAL(inbuf,smb_ntcreate_AllocationSize + 4)) << 32);
824 #endif
825 if (allocation_size && (allocation_size > (SMB_BIG_UINT)file_len)) {
826 fsp->initial_allocation_size = SMB_ROUNDUP(allocation_size,SMB_ROUNDUP_ALLOCATION_SIZE);
827 if (vfs_allocate_file_space(fsp, fsp->initial_allocation_size) == -1) {
828 close_file(fsp,False);
829 END_PROFILE(SMBntcreateX);
830 return ERROR_NT(NT_STATUS_DISK_FULL);
832 } else {
833 fsp->initial_allocation_size = SMB_ROUNDUP(((SMB_BIG_UINT)file_len),SMB_ROUNDUP_ALLOCATION_SIZE);
837 * If the caller set the extended oplock request bit
838 * and we granted one (by whatever means) - set the
839 * correct bit for extended oplock reply.
842 if (oplock_request && lp_fake_oplocks(SNUM(conn)))
843 extended_oplock_granted = True;
845 if(oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))
846 extended_oplock_granted = True;
848 #if 0
849 /* W2K sends back 42 words here ! If we do the same it breaks offline sync. Go figure... ? JRA. */
850 set_message(outbuf,42,0,True);
851 #else
852 set_message(outbuf,34,0,True);
853 #endif
855 p = outbuf + smb_vwv2;
858 * Currently as we don't support level II oplocks we just report
859 * exclusive & batch here.
862 if (extended_oplock_granted) {
863 if (flags & REQUEST_BATCH_OPLOCK) {
864 SCVAL(p,0, BATCH_OPLOCK_RETURN);
865 } else {
866 SCVAL(p,0, EXCLUSIVE_OPLOCK_RETURN);
868 } else if (LEVEL_II_OPLOCK_TYPE(fsp->oplock_type)) {
869 SCVAL(p,0, LEVEL_II_OPLOCK_RETURN);
870 } else {
871 SCVAL(p,0,NO_OPLOCK_RETURN);
874 p++;
875 SSVAL(p,0,fsp->fnum);
876 p += 2;
877 if ((create_disposition == FILE_SUPERSEDE) && (smb_action == FILE_WAS_OVERWRITTEN))
878 SIVAL(p,0,FILE_WAS_SUPERSEDED);
879 else
880 SIVAL(p,0,smb_action);
881 p += 4;
883 /* Create time. */
884 c_time = get_create_time(&sbuf,lp_fake_dir_create_times(SNUM(conn)));
886 if (lp_dos_filetime_resolution(SNUM(conn))) {
887 c_time &= ~1;
888 sbuf.st_atime &= ~1;
889 sbuf.st_mtime &= ~1;
890 sbuf.st_mtime &= ~1;
893 put_long_date(p,c_time);
894 p += 8;
895 put_long_date(p,sbuf.st_atime); /* access time */
896 p += 8;
897 put_long_date(p,sbuf.st_mtime); /* write time */
898 p += 8;
899 put_long_date(p,sbuf.st_mtime); /* change time */
900 p += 8;
901 SIVAL(p,0,fmode); /* File Attributes. */
902 p += 4;
903 SOFF_T(p, 0, get_allocation_size(fsp,&sbuf));
904 p += 8;
905 SOFF_T(p,0,file_len);
906 p += 12;
907 SCVAL(p,0,fsp->is_directory ? 1 : 0);
909 DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n", fsp->fnum, fsp->fsp_name));
911 result = chain_reply(inbuf,outbuf,length,bufsize);
912 END_PROFILE(SMBntcreateX);
913 return result;
916 /****************************************************************************
917 Reply to a NT_TRANSACT_CREATE call to open a pipe.
918 ****************************************************************************/
920 static int do_nt_transact_create_pipe( connection_struct *conn,
921 char *inbuf, char *outbuf, int length,
922 int bufsize, char **ppsetup, char **ppparams,
923 char **ppdata)
925 pstring fname;
926 int total_parameter_count = (int)IVAL(inbuf, smb_nt_TotalParameterCount);
927 char *params = *ppparams;
928 int ret;
929 int pnum = -1;
930 char *p = NULL;
933 * Ensure minimum number of parameters sent.
936 if(total_parameter_count < 54) {
937 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)total_parameter_count));
938 return ERROR_DOS(ERRDOS,ERRnoaccess);
941 srvstr_pull(inbuf, fname, params+53, sizeof(fname), total_parameter_count-53, STR_TERMINATE);
943 if ((ret = nt_open_pipe(fname, conn, inbuf, outbuf, &pnum)) != 0)
944 return ret;
946 /* Realloc the size of parameters and data we will return */
947 params = Realloc(*ppparams, 69);
948 if(params == NULL)
949 return ERROR_DOS(ERRDOS,ERRnomem);
951 *ppparams = params;
953 memset((char *)params,'\0',69);
955 p = params;
956 SCVAL(p,0,NO_OPLOCK_RETURN);
958 p += 2;
959 SSVAL(p,0,pnum);
960 p += 2;
961 SIVAL(p,0,FILE_WAS_OPENED);
962 p += 8;
964 p += 32;
965 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
966 p += 20;
967 /* File type. */
968 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
969 /* Device state. */
970 SSVAL(p,2, 0x5FF); /* ? */
972 DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
974 /* Send the required number of replies */
975 send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, params, 69, *ppdata, 0);
977 return -1;
980 /****************************************************************************
981 Internal fn to set security descriptors.
982 ****************************************************************************/
984 static NTSTATUS set_sd(files_struct *fsp, char *data, uint32 sd_len, uint32 security_info_sent)
986 prs_struct pd;
987 SEC_DESC *psd = NULL;
988 TALLOC_CTX *mem_ctx;
989 BOOL ret;
991 if (sd_len == 0) {
992 return NT_STATUS_OK;
996 * Init the parse struct we will unmarshall from.
999 if ((mem_ctx = talloc_init("set_sd")) == NULL) {
1000 DEBUG(0,("set_sd: talloc_init failed.\n"));
1001 return NT_STATUS_NO_MEMORY;
1004 prs_init(&pd, 0, mem_ctx, UNMARSHALL);
1007 * Setup the prs_struct to point at the memory we just
1008 * allocated.
1011 prs_give_memory( &pd, data, sd_len, False);
1014 * Finally, unmarshall from the data buffer.
1017 if(!sec_io_desc( "sd data", &psd, &pd, 1)) {
1018 DEBUG(0,("set_sd: Error in unmarshalling security descriptor.\n"));
1020 * Return access denied for want of a better error message..
1022 talloc_destroy(mem_ctx);
1023 return NT_STATUS_NO_MEMORY;
1026 if (psd->off_owner_sid==0)
1027 security_info_sent &= ~OWNER_SECURITY_INFORMATION;
1028 if (psd->off_grp_sid==0)
1029 security_info_sent &= ~GROUP_SECURITY_INFORMATION;
1030 if (psd->off_sacl==0)
1031 security_info_sent &= ~SACL_SECURITY_INFORMATION;
1032 if (psd->off_dacl==0)
1033 security_info_sent &= ~DACL_SECURITY_INFORMATION;
1035 ret = fsp->conn->vfs_ops.fset_nt_acl( fsp, fsp->fd, security_info_sent, psd);
1037 if (!ret) {
1038 talloc_destroy(mem_ctx);
1039 return NT_STATUS_ACCESS_DENIED;
1042 talloc_destroy(mem_ctx);
1044 return NT_STATUS_OK;
1047 /****************************************************************************
1048 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
1049 ****************************************************************************/
1051 static int call_nt_transact_create(connection_struct *conn,
1052 char *inbuf, char *outbuf, int length,
1053 int bufsize, char **ppsetup, char **ppparams,
1054 char **ppdata)
1056 pstring fname;
1057 char *params = *ppparams;
1058 char *data = *ppdata;
1059 int total_parameter_count = (int)IVAL(inbuf, smb_nt_TotalParameterCount);
1060 /* Breakout the oplock request bits so we can set the reply bits separately. */
1061 int oplock_request = 0;
1062 mode_t unixmode;
1063 int fmode=0,rmode=0;
1064 SMB_OFF_T file_len = 0;
1065 SMB_STRUCT_STAT sbuf;
1066 int smb_action = 0;
1067 BOOL bad_path = False;
1068 files_struct *fsp = NULL;
1069 char *p = NULL;
1070 BOOL extended_oplock_granted = False;
1071 uint32 flags;
1072 uint32 desired_access;
1073 uint32 file_attributes;
1074 uint32 share_access;
1075 uint32 create_disposition;
1076 uint32 create_options;
1077 uint32 sd_len;
1078 uint16 root_dir_fid;
1079 SMB_BIG_UINT allocation_size = 0;
1080 int smb_ofun;
1081 int smb_open_mode;
1082 int smb_attr;
1083 time_t c_time;
1084 NTSTATUS nt_status;
1086 DEBUG(5,("call_nt_transact_create\n"));
1089 * If it's an IPC, use the pipe handler.
1092 if (IS_IPC(conn)) {
1093 if (lp_nt_pipe_support())
1094 return do_nt_transact_create_pipe(conn, inbuf, outbuf, length,
1095 bufsize, ppsetup, ppparams, ppdata);
1096 else
1097 return ERROR_DOS(ERRDOS,ERRnoaccess);
1101 * Ensure minimum number of parameters sent.
1104 if(total_parameter_count < 54) {
1105 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)total_parameter_count));
1106 return ERROR_DOS(ERRDOS,ERRnoaccess);
1109 flags = IVAL(params,0);
1110 desired_access = IVAL(params,8);
1111 file_attributes = IVAL(params,20);
1112 share_access = IVAL(params,24);
1113 create_disposition = IVAL(params,28);
1114 create_options = IVAL(params,32);
1115 sd_len = IVAL(params,36);
1116 root_dir_fid = (uint16)IVAL(params,4);
1117 smb_attr = (file_attributes & SAMBA_ATTRIBUTES_MASK);
1119 if (create_options & FILE_OPEN_BY_FILE_ID) {
1120 END_PROFILE(SMBntcreateX);
1121 return ERROR_NT(NT_STATUS_NOT_SUPPORTED);
1125 * We need to construct the open_and_X ofun value from the
1126 * NT values, as that's what our code is structured to accept.
1129 if((smb_ofun = map_create_disposition( create_disposition )) == -1)
1130 return ERROR_DOS(ERRDOS,ERRbadmem);
1133 * Get the file name.
1136 if(root_dir_fid != 0) {
1138 * This filename is relative to a directory fid.
1141 files_struct *dir_fsp = file_fsp(params,4);
1142 size_t dir_name_len;
1144 if(!dir_fsp)
1145 return ERROR_DOS(ERRDOS,ERRbadfid);
1147 if(!dir_fsp->is_directory) {
1149 srvstr_pull(inbuf, fname, params+53, sizeof(fname), total_parameter_count-53, STR_TERMINATE);
1152 * Check to see if this is a mac fork of some kind.
1155 if( strchr_m(fname, ':'))
1156 return ERROR_NT(NT_STATUS_OBJECT_PATH_NOT_FOUND);
1158 return ERROR_DOS(ERRDOS,ERRbadfid);
1162 * Copy in the base directory name.
1165 pstrcpy( fname, dir_fsp->fsp_name );
1166 dir_name_len = strlen(fname);
1169 * Ensure it ends in a '\'.
1172 if((fname[dir_name_len-1] != '\\') && (fname[dir_name_len-1] != '/')) {
1173 pstrcat(fname, "\\");
1174 dir_name_len++;
1177 srvstr_pull(inbuf, &fname[dir_name_len], params+53, sizeof(fname)-dir_name_len,
1178 total_parameter_count-53, STR_TERMINATE);
1179 } else {
1180 srvstr_pull(inbuf, fname, params+53, sizeof(fname), total_parameter_count-53, STR_TERMINATE);
1183 * Check to see if this is a mac fork of some kind.
1186 if( strchr_m(fname, ':'))
1187 return ERROR_NT(NT_STATUS_OBJECT_PATH_NOT_FOUND);
1191 * Now contruct the smb_open_mode value from the desired access
1192 * and the share access.
1195 if((smb_open_mode = map_share_mode( fname, create_options, &desired_access,
1196 share_access, file_attributes)) == -1)
1197 return ERROR_DOS(ERRDOS,ERRnoaccess);
1199 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1200 oplock_request |= (flags & REQUEST_BATCH_OPLOCK) ? BATCH_OPLOCK : 0;
1203 * Check if POSIX semantics are wanted.
1206 set_posix_case_semantics(file_attributes);
1208 RESOLVE_DFSPATH(fname, conn, inbuf, outbuf);
1210 unix_convert(fname,conn,0,&bad_path,&sbuf);
1212 unixmode = unix_mode(conn,smb_attr | aARCH, fname);
1215 * If it's a request for a directory open, deal with it separately.
1218 if(create_options & FILE_DIRECTORY_FILE) {
1220 /* Can't open a temp directory. IFS kit test. */
1221 if (file_attributes & FILE_ATTRIBUTE_TEMPORARY) {
1222 END_PROFILE(SMBntcreateX);
1223 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
1226 oplock_request = 0;
1229 * We will get a create directory here if the Win32
1230 * app specified a security descriptor in the
1231 * CreateDirectory() call.
1234 fsp = open_directory(conn, fname, &sbuf, desired_access, smb_open_mode, smb_ofun, unixmode, &smb_action);
1236 if(!fsp) {
1237 restore_case_semantics(file_attributes);
1238 set_bad_path_error(errno, bad_path);
1239 return(UNIXERROR(ERRDOS,ERRnoaccess));
1242 } else {
1245 * Ordinary file case.
1248 fsp = open_file_shared1(conn,fname,&sbuf,desired_access,
1249 smb_open_mode,smb_ofun,unixmode,
1250 oplock_request,&rmode,&smb_action);
1252 if (!fsp) {
1254 if(errno == EISDIR) {
1257 * Fail the open if it was explicitly a non-directory file.
1260 if (create_options & FILE_NON_DIRECTORY_FILE) {
1261 restore_case_semantics(file_attributes);
1262 SSVAL(outbuf, smb_flg2, SVAL(outbuf,smb_flg2) | FLAGS2_32_BIT_ERROR_CODES);
1263 return ERROR_NT(NT_STATUS_FILE_IS_A_DIRECTORY);
1266 oplock_request = 0;
1267 fsp = open_directory(conn, fname, &sbuf, desired_access, smb_open_mode, smb_ofun, unixmode, &smb_action);
1269 if(!fsp) {
1270 restore_case_semantics(file_attributes);
1271 set_bad_path_error(errno, bad_path);
1272 return(UNIXERROR(ERRDOS,ERRnoaccess));
1274 } else {
1275 restore_case_semantics(file_attributes);
1276 set_bad_path_error(errno, bad_path);
1277 return(UNIXERROR(ERRDOS,ERRnoaccess));
1281 file_len = sbuf.st_size;
1282 fmode = dos_mode(conn,fname,&sbuf);
1283 if(fmode == 0)
1284 fmode = FILE_ATTRIBUTE_NORMAL;
1286 if (fmode & aDIR) {
1287 close_file(fsp,False);
1288 restore_case_semantics(file_attributes);
1289 return ERROR_DOS(ERRDOS,ERRnoaccess);
1293 * If the caller set the extended oplock request bit
1294 * and we granted one (by whatever means) - set the
1295 * correct bit for extended oplock reply.
1298 if (oplock_request && lp_fake_oplocks(SNUM(conn)))
1299 extended_oplock_granted = True;
1301 if(oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))
1302 extended_oplock_granted = True;
1306 * Now try and apply the desired SD.
1309 if (sd_len && !NT_STATUS_IS_OK(nt_status = set_sd( fsp, data, sd_len, ALL_SECURITY_INFORMATION))) {
1310 close_file(fsp,False);
1311 restore_case_semantics(file_attributes);
1312 return ERROR_NT(nt_status);
1315 restore_case_semantics(file_attributes);
1317 /* Save the requested allocation size. */
1318 allocation_size = (SMB_BIG_UINT)IVAL(params,12);
1319 #ifdef LARGE_SMB_OFF_T
1320 allocation_size |= (((SMB_BIG_UINT)IVAL(params,16)) << 32);
1321 #endif
1322 if (allocation_size && (allocation_size > file_len)) {
1323 fsp->initial_allocation_size = SMB_ROUNDUP(allocation_size,SMB_ROUNDUP_ALLOCATION_SIZE);
1324 if (vfs_allocate_file_space(fsp, fsp->initial_allocation_size) == -1) {
1325 close_file(fsp,False);
1326 END_PROFILE(SMBntcreateX);
1327 return ERROR_NT(NT_STATUS_DISK_FULL);
1329 } else {
1330 fsp->initial_allocation_size = SMB_ROUNDUP(((SMB_BIG_UINT)file_len),SMB_ROUNDUP_ALLOCATION_SIZE);
1333 /* Realloc the size of parameters and data we will return */
1334 params = Realloc(*ppparams, 69);
1335 if(params == NULL)
1336 return ERROR_DOS(ERRDOS,ERRnomem);
1338 *ppparams = params;
1340 memset((char *)params,'\0',69);
1342 p = params;
1343 if (extended_oplock_granted)
1344 SCVAL(p,0, BATCH_OPLOCK_RETURN);
1345 else if (LEVEL_II_OPLOCK_TYPE(fsp->oplock_type))
1346 SCVAL(p,0, LEVEL_II_OPLOCK_RETURN);
1347 else
1348 SCVAL(p,0,NO_OPLOCK_RETURN);
1350 p += 2;
1351 SSVAL(p,0,fsp->fnum);
1352 p += 2;
1353 if ((create_disposition == FILE_SUPERSEDE) && (smb_action == FILE_WAS_OVERWRITTEN))
1354 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1355 else
1356 SIVAL(p,0,smb_action);
1357 p += 8;
1359 /* Create time. */
1360 c_time = get_create_time(&sbuf,lp_fake_dir_create_times(SNUM(conn)));
1362 if (lp_dos_filetime_resolution(SNUM(conn))) {
1363 c_time &= ~1;
1364 sbuf.st_atime &= ~1;
1365 sbuf.st_mtime &= ~1;
1366 sbuf.st_mtime &= ~1;
1369 put_long_date(p,c_time);
1370 p += 8;
1371 put_long_date(p,sbuf.st_atime); /* access time */
1372 p += 8;
1373 put_long_date(p,sbuf.st_mtime); /* write time */
1374 p += 8;
1375 put_long_date(p,sbuf.st_mtime); /* change time */
1376 p += 8;
1377 SIVAL(p,0,fmode); /* File Attributes. */
1378 p += 4;
1379 SOFF_T(p, 0, get_allocation_size(fsp,&sbuf));
1380 p += 8;
1381 SOFF_T(p,0,file_len);
1383 DEBUG(5,("call_nt_transact_create: open name = %s\n", fname));
1385 /* Send the required number of replies */
1386 send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, params, 69, *ppdata, 0);
1388 return -1;
1391 /****************************************************************************
1392 Reply to a NT CANCEL request.
1393 ****************************************************************************/
1395 int reply_ntcancel(connection_struct *conn,
1396 char *inbuf,char *outbuf,int length,int bufsize)
1399 * Go through and cancel any pending change notifies.
1402 int mid = SVAL(inbuf,smb_mid);
1403 START_PROFILE(SMBntcancel);
1404 remove_pending_change_notify_requests_by_mid(mid);
1405 remove_pending_lock_requests_by_mid(mid);
1407 DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", mid));
1409 END_PROFILE(SMBntcancel);
1410 return(-1);
1413 /****************************************************************************
1414 Reply to an unsolicited SMBNTtranss - just ignore it!
1415 ****************************************************************************/
1417 int reply_nttranss(connection_struct *conn,
1418 char *inbuf,char *outbuf,int length,int bufsize)
1420 START_PROFILE(SMBnttranss);
1421 DEBUG(4,("Ignoring nttranss of length %d\n",length));
1422 END_PROFILE(SMBnttranss);
1423 return(-1);
1426 /****************************************************************************
1427 Reply to a notify change - queue the request and
1428 don't allow a directory to be opened.
1429 ****************************************************************************/
1431 static int call_nt_transact_notify_change(connection_struct *conn,
1432 char *inbuf, char *outbuf, int length,
1433 int bufsize,
1434 char **ppsetup,
1435 char **ppparams, char **ppdata)
1437 char *setup = *ppsetup;
1438 files_struct *fsp;
1439 uint32 flags;
1441 fsp = file_fsp(setup,4);
1442 flags = IVAL(setup, 0);
1444 DEBUG(3,("call_nt_transact_notify_change\n"));
1446 if(!fsp)
1447 return ERROR_DOS(ERRDOS,ERRbadfid);
1449 if((!fsp->is_directory) || (conn != fsp->conn))
1450 return ERROR_DOS(ERRDOS,ERRbadfid);
1452 if (!change_notify_set(inbuf, fsp, conn, flags))
1453 return(UNIXERROR(ERRDOS,ERRbadfid));
1455 DEBUG(3,("call_nt_transact_notify_change: notify change called on directory \
1456 name = %s\n", fsp->fsp_name ));
1458 return -1;
1461 /****************************************************************************
1462 Reply to an NT transact rename command.
1463 ****************************************************************************/
1465 static int call_nt_transact_rename(connection_struct *conn,
1466 char *inbuf, char *outbuf, int length,
1467 int bufsize,
1468 char **ppsetup, char **ppparams, char **ppdata)
1470 char *params = *ppparams;
1471 pstring new_name;
1472 files_struct *fsp = file_fsp(params, 0);
1473 BOOL replace_if_exists = (SVAL(params,2) & RENAME_REPLACE_IF_EXISTS) ? True : False;
1474 NTSTATUS status;
1476 CHECK_FSP(fsp, conn);
1477 srvstr_pull(inbuf, new_name, params+4, sizeof(new_name), -1, STR_TERMINATE);
1479 status = rename_internals(conn, fsp->fsp_name,
1480 new_name, replace_if_exists);
1481 if (!NT_STATUS_IS_OK(status))
1482 return ERROR_NT(status);
1485 * Rename was successful.
1487 send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, NULL, 0, NULL, 0);
1489 DEBUG(3,("nt transact rename from = %s, to = %s succeeded.\n",
1490 fsp->fsp_name, new_name));
1493 * Win2k needs a changenotify request response before it will
1494 * update after a rename..
1497 process_pending_change_notify_queue((time_t)0);
1499 return -1;
1502 /******************************************************************************
1503 Fake up a completely empty SD.
1504 *******************************************************************************/
1506 static size_t get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
1508 extern DOM_SID global_sid_World;
1509 size_t sd_size;
1511 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1512 if(!*ppsd) {
1513 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1514 sd_size = 0;
1517 return sd_size;
1520 /****************************************************************************
1521 Reply to query a security descriptor - currently this is not implemented (it
1522 is planned to be though). Right now it just returns the same thing NT would
1523 when queried on a FAT filesystem. JRA.
1524 ****************************************************************************/
1526 static int call_nt_transact_query_security_desc(connection_struct *conn,
1527 char *inbuf, char *outbuf,
1528 int length, int bufsize,
1529 char **ppsetup, char **ppparams, char **ppdata)
1531 uint32 max_data_count = IVAL(inbuf,smb_nt_MaxDataCount);
1532 char *params = *ppparams;
1533 char *data = *ppdata;
1534 prs_struct pd;
1535 SEC_DESC *psd = NULL;
1536 size_t sd_size;
1537 TALLOC_CTX *mem_ctx;
1539 files_struct *fsp = file_fsp(params,0);
1541 if(!fsp)
1542 return ERROR_DOS(ERRDOS,ERRbadfid);
1544 DEBUG(3,("call_nt_transact_query_security_desc: file = %s\n", fsp->fsp_name ));
1546 params = Realloc(*ppparams, 4);
1547 if(params == NULL)
1548 return ERROR_DOS(ERRDOS,ERRnomem);
1550 *ppparams = params;
1552 if ((mem_ctx = talloc_init("call_nt_transact_query_security_desc")) == NULL) {
1553 DEBUG(0,("call_nt_transact_query_security_desc: talloc_init failed.\n"));
1554 return ERROR_DOS(ERRDOS,ERRnomem);
1558 * Get the permissions to return.
1561 if (!lp_nt_acl_support(SNUM(conn)))
1562 sd_size = get_null_nt_acl(mem_ctx, &psd);
1563 else
1564 sd_size = conn->vfs_ops.fget_nt_acl(fsp, fsp->fd, &psd);
1566 if (sd_size == 0) {
1567 talloc_destroy(mem_ctx);
1568 return(UNIXERROR(ERRDOS,ERRnoaccess));
1571 DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %d.\n",(int)sd_size));
1573 SIVAL(params,0,(uint32)sd_size);
1575 if(max_data_count < sd_size) {
1577 send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_BUFFER_TOO_SMALL,
1578 params, 4, *ppdata, 0);
1579 talloc_destroy(mem_ctx);
1580 return -1;
1584 * Allocate the data we will point this at.
1587 data = Realloc(*ppdata, sd_size);
1588 if(data == NULL) {
1589 talloc_destroy(mem_ctx);
1590 return ERROR_DOS(ERRDOS,ERRnomem);
1593 *ppdata = data;
1595 memset(data, '\0', sd_size);
1598 * Init the parse struct we will marshall into.
1601 prs_init(&pd, 0, mem_ctx, MARSHALL);
1604 * Setup the prs_struct to point at the memory we just
1605 * allocated.
1608 prs_give_memory( &pd, data, (uint32)sd_size, False);
1611 * Finally, linearize into the outgoing buffer.
1614 if(!sec_io_desc( "sd data", &psd, &pd, 1)) {
1615 DEBUG(0,("call_nt_transact_query_security_desc: Error in marshalling \
1616 security descriptor.\n"));
1618 * Return access denied for want of a better error message..
1620 talloc_destroy(mem_ctx);
1621 return(UNIXERROR(ERRDOS,ERRnoaccess));
1625 * Now we can delete the security descriptor.
1628 talloc_destroy(mem_ctx);
1630 send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, params, 4, data, (int)sd_size);
1631 return -1;
1634 /****************************************************************************
1635 Reply to set a security descriptor. Map to UNIX perms.
1636 ****************************************************************************/
1638 static int call_nt_transact_set_security_desc(connection_struct *conn,
1639 char *inbuf, char *outbuf, int length,
1640 int bufsize, char **ppsetup,
1641 char **ppparams, char **ppdata)
1643 uint32 total_parameter_count = IVAL(inbuf, smb_nts_TotalParameterCount);
1644 char *params= *ppparams;
1645 char *data = *ppdata;
1646 uint32 total_data_count = (uint32)IVAL(inbuf, smb_nts_TotalDataCount);
1647 files_struct *fsp = NULL;
1648 uint32 security_info_sent = 0;
1649 NTSTATUS nt_status;
1651 if(total_parameter_count < 8)
1652 return ERROR_DOS(ERRDOS,ERRbadfunc);
1654 if((fsp = file_fsp(params,0)) == NULL)
1655 return ERROR_DOS(ERRDOS,ERRbadfid);
1657 if(!lp_nt_acl_support(SNUM(conn)))
1658 goto done;
1660 security_info_sent = IVAL(params,4);
1662 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n", fsp->fsp_name,
1663 (unsigned int)security_info_sent ));
1665 if (total_data_count == 0)
1666 return ERROR_DOS(ERRDOS, ERRnoaccess);
1668 if (!NT_STATUS_IS_OK(nt_status = set_sd( fsp, data, total_data_count, security_info_sent)))
1669 return ERROR_NT(nt_status);
1671 done:
1673 send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, NULL, 0, NULL, 0);
1674 return -1;
1677 /****************************************************************************
1678 Reply to NT IOCTL
1679 ****************************************************************************/
1680 static int call_nt_transact_ioctl(connection_struct *conn,
1681 char *inbuf, char *outbuf, int length,
1682 int bufsize,
1683 char **ppsetup, int setup_count,
1684 char **ppparams, int parameter_count,
1685 char **ppdata, int data_count)
1687 unsigned fnum, control;
1688 static BOOL logged_message;
1690 if (setup_count != 8) {
1691 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
1692 return ERROR_NT(NT_STATUS_NOT_SUPPORTED);
1695 fnum = SVAL(*ppsetup, 4);
1696 control = IVAL(*ppsetup, 0);
1698 DEBUG(6,("call_nt_transact_ioctl: fnum=%d control=0x%x\n",
1699 fnum, control));
1701 switch (control) {
1702 case NTIOCTL_SET_SPARSE:
1703 /* pretend this succeeded - tho strictly we should
1704 mark the file sparse (if the local fs supports it)
1705 so we can know if we need to pre-allocate or not */
1706 send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_OK, NULL, 0, NULL, 0);
1707 return -1;
1709 default:
1710 if (!logged_message) {
1711 logged_message = True; /* Only print this once... */
1712 DEBUG(3,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n",
1713 control));
1717 return ERROR_NT(NT_STATUS_NOT_SUPPORTED);
1720 /****************************************************************************
1721 Reply to a SMBNTtrans.
1722 ****************************************************************************/
1724 int reply_nttrans(connection_struct *conn,
1725 char *inbuf,char *outbuf,int length,int bufsize)
1727 int outsize = 0;
1728 #if 0 /* Not used. */
1729 uint16 max_setup_count = CVAL(inbuf, smb_nt_MaxSetupCount);
1730 uint32 max_parameter_count = IVAL(inbuf, smb_nt_MaxParameterCount);
1731 uint32 max_data_count = IVAL(inbuf,smb_nt_MaxDataCount);
1732 #endif /* Not used. */
1733 uint32 total_parameter_count = IVAL(inbuf, smb_nt_TotalParameterCount);
1734 uint32 total_data_count = IVAL(inbuf, smb_nt_TotalDataCount);
1735 uint32 parameter_count = IVAL(inbuf,smb_nt_ParameterCount);
1736 uint32 parameter_offset = IVAL(inbuf,smb_nt_ParameterOffset);
1737 uint32 data_count = IVAL(inbuf,smb_nt_DataCount);
1738 uint32 data_offset = IVAL(inbuf,smb_nt_DataOffset);
1739 uint16 setup_count = 2*CVAL(inbuf,smb_nt_SetupCount); /* setup count is in *words* */
1740 uint16 function_code = SVAL( inbuf, smb_nt_Function);
1741 char *params = NULL, *data = NULL, *setup = NULL;
1742 uint32 num_params_sofar, num_data_sofar;
1743 START_PROFILE(SMBnttrans);
1745 if(global_oplock_break &&
1746 ((function_code == NT_TRANSACT_CREATE) ||
1747 (function_code == NT_TRANSACT_RENAME))) {
1749 * Queue this open message as we are the process of an oplock break.
1752 DEBUG(2,("reply_nttrans: queueing message code 0x%x \
1753 due to being in oplock break state.\n", (unsigned int)function_code ));
1755 push_oplock_pending_smb_message( inbuf, length);
1756 END_PROFILE(SMBnttrans);
1757 return -1;
1760 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
1761 END_PROFILE(SMBnttrans);
1762 return ERROR_DOS(ERRSRV,ERRaccess);
1765 outsize = set_message(outbuf,0,0,True);
1768 * All nttrans messages we handle have smb_wct == 19 + setup_count.
1769 * Ensure this is so as a sanity check.
1772 if(CVAL(inbuf, smb_wct) != 19 + (setup_count/2)) {
1773 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
1774 CVAL(inbuf, smb_wct), 19 + (setup_count/2)));
1775 goto bad_param;
1778 /* Allocate the space for the setup, the maximum needed parameters and data */
1780 if(setup_count > 0)
1781 setup = (char *)malloc(setup_count);
1782 if (total_parameter_count > 0)
1783 params = (char *)malloc(total_parameter_count);
1784 if (total_data_count > 0)
1785 data = (char *)malloc(total_data_count);
1787 if ((total_parameter_count && !params) || (total_data_count && !data) ||
1788 (setup_count && !setup)) {
1789 SAFE_FREE(setup);
1790 SAFE_FREE(params);
1791 SAFE_FREE(data);
1792 DEBUG(0,("reply_nttrans : Out of memory\n"));
1793 END_PROFILE(SMBnttrans);
1794 return ERROR_DOS(ERRDOS,ERRnomem);
1797 /* Copy the param and data bytes sent with this request into the params buffer */
1798 num_params_sofar = parameter_count;
1799 num_data_sofar = data_count;
1801 if (parameter_count > total_parameter_count || data_count > total_data_count)
1802 goto bad_param;
1804 if(setup) {
1805 DEBUG(10,("reply_nttrans: setup_count = %d\n", setup_count));
1806 if ((smb_nt_SetupStart + setup_count < smb_nt_SetupStart) ||
1807 (smb_nt_SetupStart + setup_count < setup_count))
1808 goto bad_param;
1809 if (smb_nt_SetupStart + setup_count > length)
1810 goto bad_param;
1812 memcpy( setup, &inbuf[smb_nt_SetupStart], setup_count);
1813 dump_data(10, setup, setup_count);
1815 if(params) {
1816 DEBUG(10,("reply_nttrans: parameter_count = %d\n", parameter_count));
1817 if ((parameter_offset + parameter_count < parameter_offset) ||
1818 (parameter_offset + parameter_count < parameter_count))
1819 goto bad_param;
1820 if (smb_base(inbuf) + parameter_offset + parameter_count > inbuf + length)
1821 goto bad_param;
1823 memcpy( params, smb_base(inbuf) + parameter_offset, parameter_count);
1824 dump_data(10, params, parameter_count);
1826 if(data) {
1827 DEBUG(10,("reply_nttrans: data_count = %d\n",data_count));
1828 if ((data_offset + data_count < data_offset) || (data_offset + data_count < data_count))
1829 goto bad_param;
1830 if (smb_base(inbuf) + data_offset + data_count > inbuf + length)
1831 goto bad_param;
1833 memcpy( data, smb_base(inbuf) + data_offset, data_count);
1834 dump_data(10, data, data_count);
1837 if(num_data_sofar < total_data_count || num_params_sofar < total_parameter_count) {
1838 /* We need to send an interim response then receive the rest
1839 of the parameter/data bytes */
1840 outsize = set_message(outbuf,0,0,True);
1841 if (!send_smb(smbd_server_fd(),outbuf))
1842 exit_server("reply_nttrans: send_smb failed.");
1844 while( num_data_sofar < total_data_count || num_params_sofar < total_parameter_count) {
1845 BOOL ret;
1846 uint32 parameter_displacement;
1847 uint32 data_displacement;
1849 ret = receive_next_smb(inbuf,bufsize,SMB_SECONDARY_WAIT);
1851 if((ret && (CVAL(inbuf, smb_com) != SMBnttranss)) || !ret) {
1852 outsize = set_message(outbuf,0,0,True);
1853 if(ret) {
1854 DEBUG(0,("reply_nttrans: Invalid secondary nttrans packet\n"));
1855 } else {
1856 DEBUG(0,("reply_nttrans: %s in getting secondary nttrans response.\n",
1857 (smb_read_error == READ_ERROR) ? "error" : "timeout" ));
1859 goto bad_param;
1862 /* Revise total_params and total_data in case they have changed downwards */
1863 if (IVAL(inbuf, smb_nts_TotalParameterCount) < total_parameter_count)
1864 total_parameter_count = IVAL(inbuf, smb_nts_TotalParameterCount);
1865 if (IVAL(inbuf, smb_nts_TotalDataCount) < total_data_count)
1866 total_data_count = IVAL(inbuf, smb_nts_TotalDataCount);
1868 parameter_count = IVAL(inbuf,smb_nts_ParameterCount);
1869 parameter_offset = IVAL(inbuf, smb_nts_ParameterOffset);
1870 parameter_displacement = IVAL(inbuf, smb_nts_ParameterDisplacement);
1871 num_params_sofar += parameter_count;
1873 data_count = IVAL(inbuf, smb_nts_DataCount);
1874 data_displacement = IVAL(inbuf, smb_nts_DataDisplacement);
1875 data_offset = IVAL(inbuf, smb_nts_DataOffset);
1876 num_data_sofar += data_count;
1878 if (num_params_sofar > total_parameter_count || num_data_sofar > total_data_count) {
1879 DEBUG(0,("reply_nttrans2: data overflow in secondary nttrans packet"));
1880 goto bad_param;
1883 if (parameter_count) {
1884 if (parameter_displacement + parameter_count >= total_parameter_count)
1885 goto bad_param;
1886 if ((parameter_displacement + parameter_count < parameter_displacement) ||
1887 (parameter_displacement + parameter_count < parameter_count))
1888 goto bad_param;
1889 if (smb_base(inbuf) + parameter_offset + parameter_count >= inbuf + bufsize)
1890 goto bad_param;
1891 if (parameter_displacement + params < params)
1892 goto bad_param;
1894 memcpy( &params[parameter_displacement], smb_base(inbuf) + parameter_offset, parameter_count);
1897 if (data_count) {
1898 if (data_displacement + data_count >= total_data_count)
1899 goto bad_param;
1900 if ((data_displacement + data_count < data_displacement) ||
1901 (data_displacement + data_count < data_count))
1902 goto bad_param;
1903 if (smb_base(inbuf) + data_offset + data_count >= inbuf + bufsize)
1904 goto bad_param;
1905 if (data_displacement + data < data)
1906 goto bad_param;
1908 memcpy( &data[data_displacement], smb_base(inbuf)+ data_offset, data_count);
1913 if (Protocol >= PROTOCOL_NT1)
1914 SSVAL(outbuf,smb_flg2,SVAL(outbuf,smb_flg2) | FLAGS2_IS_LONG_NAME);
1916 /* Now we must call the relevant NT_TRANS function */
1917 switch(function_code) {
1918 case NT_TRANSACT_CREATE:
1919 START_PROFILE_NESTED(NT_transact_create);
1920 outsize = call_nt_transact_create(conn, inbuf, outbuf,
1921 length, bufsize,
1922 &setup, &params, &data);
1923 END_PROFILE_NESTED(NT_transact_create);
1924 break;
1925 case NT_TRANSACT_IOCTL:
1926 START_PROFILE_NESTED(NT_transact_ioctl);
1927 outsize = call_nt_transact_ioctl(conn, inbuf, outbuf,
1928 length, bufsize,
1929 &setup, setup_count,
1930 &params, parameter_count,
1931 &data, data_count);
1932 END_PROFILE_NESTED(NT_transact_ioctl);
1933 break;
1934 case NT_TRANSACT_SET_SECURITY_DESC:
1935 START_PROFILE_NESTED(NT_transact_set_security_desc);
1936 outsize = call_nt_transact_set_security_desc(conn, inbuf, outbuf,
1937 length, bufsize,
1938 &setup, &params, &data);
1939 END_PROFILE_NESTED(NT_transact_set_security_desc);
1940 break;
1941 case NT_TRANSACT_NOTIFY_CHANGE:
1942 START_PROFILE_NESTED(NT_transact_notify_change);
1943 outsize = call_nt_transact_notify_change(conn, inbuf, outbuf,
1944 length, bufsize,
1945 &setup, &params, &data);
1946 END_PROFILE_NESTED(NT_transact_notify_change);
1947 break;
1948 case NT_TRANSACT_RENAME:
1949 START_PROFILE_NESTED(NT_transact_rename);
1950 outsize = call_nt_transact_rename(conn, inbuf, outbuf,
1951 length, bufsize,
1952 &setup, &params, &data);
1953 END_PROFILE_NESTED(NT_transact_rename);
1954 break;
1956 case NT_TRANSACT_QUERY_SECURITY_DESC:
1957 START_PROFILE_NESTED(NT_transact_query_security_desc);
1958 outsize = call_nt_transact_query_security_desc(conn, inbuf, outbuf,
1959 length, bufsize,
1960 &setup, &params, &data);
1961 END_PROFILE_NESTED(NT_transact_query_security_desc);
1962 break;
1963 default:
1964 /* Error in request */
1965 DEBUG(0,("reply_nttrans: Unknown request %d in nttrans call\n", function_code));
1966 SAFE_FREE(setup);
1967 SAFE_FREE(params);
1968 SAFE_FREE(data);
1969 END_PROFILE(SMBnttrans);
1970 return ERROR_DOS(ERRSRV,ERRerror);
1973 /* As we do not know how many data packets will need to be
1974 returned here the various call_nt_transact_xxxx calls
1975 must send their own. Thus a call_nt_transact_xxxx routine only
1976 returns a value other than -1 when it wants to send
1977 an error packet.
1980 SAFE_FREE(setup);
1981 SAFE_FREE(params);
1982 SAFE_FREE(data);
1983 END_PROFILE(SMBnttrans);
1984 return outsize; /* If a correct response was needed the call_nt_transact_xxxx
1985 calls have already sent it. If outsize != -1 then it is
1986 returning an error packet. */
1988 bad_param:
1990 SAFE_FREE(params);
1991 SAFE_FREE(data);
1992 SAFE_FREE(setup);
1993 END_PROFILE(SMBnttrans);
1994 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);