2 Unix SMB/Netbios implementation.
4 SMB NT transaction handling
5 Copyright (C) Jeremy Allison 1994-1998
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 2 of the License, or
10 (at your option) any later version.
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.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 extern int DEBUGLEVEL;
28 extern int smb_read_error;
29 extern int global_oplock_break;
30 extern BOOL case_sensitive;
31 extern BOOL case_preserve;
32 extern BOOL short_case_preserve;
34 static void remove_pending_change_notify_requests_by_mid(int mid);
36 static char *known_nt_pipes[] = {
51 /****************************************************************************
52 Send the required number of replies back.
53 We assume all fields other than the data fields are
54 set correctly for the type of call.
55 HACK ! Always assumes smb_setup field is zero.
56 ****************************************************************************/
58 static int send_nt_replies(char *inbuf, char *outbuf, int bufsize, uint32 nt_error, char *params,
59 int paramsize, char *pdata, int datasize)
62 int data_to_send = datasize;
63 int params_to_send = paramsize;
67 int params_sent_thistime, data_sent_thistime, total_sent_thistime;
68 int alignment_offset = 3;
69 int data_alignment_offset = 0;
72 * Initially set the wcnt area to be 18 - this is true for all
76 set_message(outbuf,18,0,True);
80 SSVAL(outbuf,smb_flg2, SVAL(outbuf,smb_flg2) | FLAGS2_32_BIT_ERROR_CODES);
86 * If there genuinely are no parameters or data to send just send
90 if(params_to_send == 0 && data_to_send == 0) {
91 send_smb(Client,outbuf);
96 * When sending params and data ensure that both are nicely aligned.
97 * Only do this alignment when there is also data to send - else
98 * can cause NT redirector problems.
101 if (((params_to_send % 4) != 0) && (data_to_send != 0))
102 data_alignment_offset = 4 - (params_to_send % 4);
105 * Space is bufsize minus Netbios over TCP header minus SMB header.
106 * The alignment_offset is to align the param bytes on a four byte
107 * boundary (2 bytes for data len, one byte pad).
108 * NT needs this to work correctly.
111 useable_space = bufsize - ((smb_buf(outbuf)+
112 alignment_offset+data_alignment_offset) -
116 * useable_space can never be more than max_send minus the
120 useable_space = MIN(useable_space,
121 max_send - (alignment_offset+data_alignment_offset));
124 while (params_to_send || data_to_send) {
127 * Calculate whether we will totally or partially fill this packet.
130 total_sent_thistime = params_to_send + data_to_send +
131 alignment_offset + data_alignment_offset;
134 * We can never send more than useable_space.
137 total_sent_thistime = MIN(total_sent_thistime, useable_space);
139 set_message(outbuf, 18, total_sent_thistime, True);
142 * Set total params and data to be sent.
145 SIVAL(outbuf,smb_ntr_TotalParameterCount,paramsize);
146 SIVAL(outbuf,smb_ntr_TotalDataCount,datasize);
149 * Calculate how many parameters and data we can fit into
150 * this packet. Parameters get precedence.
153 params_sent_thistime = MIN(params_to_send,useable_space);
154 data_sent_thistime = useable_space - params_sent_thistime;
155 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
157 SIVAL(outbuf,smb_ntr_ParameterCount,params_sent_thistime);
159 if(params_sent_thistime == 0) {
160 SIVAL(outbuf,smb_ntr_ParameterOffset,0);
161 SIVAL(outbuf,smb_ntr_ParameterDisplacement,0);
164 * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
165 * parameter bytes, however the first 4 bytes of outbuf are
166 * the Netbios over TCP header. Thus use smb_base() to subtract
167 * them from the calculation.
170 SIVAL(outbuf,smb_ntr_ParameterOffset,
171 ((smb_buf(outbuf)+alignment_offset) - smb_base(outbuf)));
173 * Absolute displacement of param bytes sent in this packet.
176 SIVAL(outbuf,smb_ntr_ParameterDisplacement,pp - params);
180 * Deal with the data portion.
183 SIVAL(outbuf,smb_ntr_DataCount, data_sent_thistime);
185 if(data_sent_thistime == 0) {
186 SIVAL(outbuf,smb_ntr_DataOffset,0);
187 SIVAL(outbuf,smb_ntr_DataDisplacement, 0);
190 * The offset of the data bytes is the offset of the
191 * parameter bytes plus the number of parameters being sent this time.
194 SIVAL(outbuf,smb_ntr_DataOffset,((smb_buf(outbuf)+alignment_offset) -
195 smb_base(outbuf)) + params_sent_thistime + data_alignment_offset);
196 SIVAL(outbuf,smb_ntr_DataDisplacement, pd - pdata);
200 * Copy the param bytes into the packet.
203 if(params_sent_thistime)
204 memcpy((smb_buf(outbuf)+alignment_offset),pp,params_sent_thistime);
207 * Copy in the data bytes
210 if(data_sent_thistime)
211 memcpy(smb_buf(outbuf)+alignment_offset+params_sent_thistime+
212 data_alignment_offset,pd,data_sent_thistime);
214 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
215 params_sent_thistime, data_sent_thistime, useable_space));
216 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
217 params_to_send, data_to_send, paramsize, datasize));
219 /* Send the packet */
220 send_smb(Client,outbuf);
222 pp += params_sent_thistime;
223 pd += data_sent_thistime;
225 params_to_send -= params_sent_thistime;
226 data_to_send -= data_sent_thistime;
232 if(params_to_send < 0 || data_to_send < 0) {
233 DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
234 params_to_send, data_to_send));
242 /****************************************************************************
243 (Hopefully) temporary call to fix bugs in NT5.0beta2. This OS sends unicode
244 strings in NT calls AND DOESN'T SET THE UNICODE BIT !!!!!!!
245 ****************************************************************************/
247 static void my_wcstombs(char *dst, uint16 *src, size_t len)
251 for(i = 0; i < len; i++)
252 dst[i] = (char)SVAL(src,i*2);
255 static void get_filename( char *fname, char *inbuf, int data_offset, int data_len, int fname_len)
257 if((data_len - fname_len >= 1) || (inbuf[data_offset] == '\0')) {
259 * NT 5.0 Beta 2 or Windows 2000 final release (!) has kindly sent us a UNICODE string
260 * without bothering to set the unicode bit. How kind.
262 * Firstly - ensure that the data offset is aligned
263 * on a 2 byte boundary - add one if not.
265 fname_len = fname_len/2;
268 my_wcstombs( fname, (uint16 *)(inbuf+data_offset), fname_len);
270 StrnCpy(fname,inbuf+data_offset,fname_len);
272 fname[fname_len] = '\0';
275 /****************************************************************************
277 ****************************************************************************/
279 static BOOL saved_case_sensitive;
280 static BOOL saved_case_preserve;
281 static BOOL saved_short_case_preserve;
283 /****************************************************************************
285 ****************************************************************************/
287 static void set_posix_case_semantics(uint32 file_attributes)
289 if(!(file_attributes & FILE_FLAG_POSIX_SEMANTICS))
292 saved_case_sensitive = case_sensitive;
293 saved_case_preserve = case_preserve;
294 saved_short_case_preserve = short_case_preserve;
297 case_sensitive = True;
298 case_preserve = True;
299 short_case_preserve = True;
302 /****************************************************************************
303 Restore case semantics.
304 ****************************************************************************/
306 static void restore_case_semantics(uint32 file_attributes)
308 if(!(file_attributes & FILE_FLAG_POSIX_SEMANTICS))
311 case_sensitive = saved_case_sensitive;
312 case_preserve = saved_case_preserve;
313 short_case_preserve = saved_short_case_preserve;
316 /****************************************************************************
317 Utility function to map create disposition.
318 ****************************************************************************/
320 static int map_create_disposition( uint32 create_disposition)
324 switch( create_disposition ) {
326 /* create if not exist, fail if exist */
327 ret = (FILE_CREATE_IF_NOT_EXIST|FILE_EXISTS_FAIL);
330 case FILE_OVERWRITE_IF:
331 /* create if not exist, trunc if exist */
332 ret = (FILE_CREATE_IF_NOT_EXIST|FILE_EXISTS_TRUNCATE);
335 /* fail if not exist, open if exists */
336 ret = (FILE_FAIL_IF_NOT_EXIST|FILE_EXISTS_OPEN);
339 /* create if not exist, open if exists */
340 ret = (FILE_CREATE_IF_NOT_EXIST|FILE_EXISTS_OPEN);
343 /* fail if not exist, truncate if exists */
344 ret = (FILE_FAIL_IF_NOT_EXIST|FILE_EXISTS_TRUNCATE);
347 DEBUG(0,("map_create_disposition: Incorrect value for create_disposition = %d\n",
348 create_disposition ));
352 DEBUG(10,("map_create_disposition: Mapped create_disposition %lx to %x\n",
353 (unsigned long)create_disposition, ret ));
358 /****************************************************************************
359 Utility function to map share modes.
360 ****************************************************************************/
362 static int map_share_mode( BOOL *pstat_open_only, char *fname,
363 uint32 desired_access, uint32 share_access, uint32 file_attributes)
365 int smb_open_mode = -1;
367 *pstat_open_only = False;
369 switch( desired_access & (FILE_READ_DATA|FILE_WRITE_DATA|FILE_APPEND_DATA) ) {
371 smb_open_mode = DOS_OPEN_RDONLY;
373 case FILE_WRITE_DATA:
374 case FILE_APPEND_DATA:
375 case FILE_WRITE_DATA|FILE_APPEND_DATA:
376 smb_open_mode = DOS_OPEN_WRONLY;
378 case FILE_READ_DATA|FILE_WRITE_DATA:
379 case FILE_READ_DATA|FILE_WRITE_DATA|FILE_APPEND_DATA:
380 case FILE_READ_DATA|FILE_APPEND_DATA:
381 smb_open_mode = DOS_OPEN_RDWR;
386 * NB. For DELETE_ACCESS we should really check the
387 * directory permissions, as that is what controls
388 * delete, and for WRITE_DAC_ACCESS we should really
389 * check the ownership, as that is what controls the
390 * chmod. Note that this is *NOT* a security hole (this
391 * note is for you, Andrew) as we are not *allowing*
392 * the access at this point, the actual unlink or
393 * chown or chmod call would do this. We are just helping
394 * clients out by telling them if they have a hope
395 * of any of this succeeding. POSIX acls may still
396 * deny the real call. JRA.
399 if (smb_open_mode == -1) {
400 if(desired_access == WRITE_DAC_ACCESS || desired_access == READ_CONTROL_ACCESS)
401 *pstat_open_only = True;
403 if(desired_access & (DELETE_ACCESS|WRITE_DAC_ACCESS|WRITE_OWNER_ACCESS|
404 FILE_EXECUTE|FILE_READ_ATTRIBUTES|
405 FILE_READ_EA|FILE_WRITE_EA|SYSTEM_SECURITY_ACCESS|
406 FILE_WRITE_ATTRIBUTES|READ_CONTROL_ACCESS))
407 smb_open_mode = DOS_OPEN_RDONLY;
409 DEBUG(0,("map_share_mode: Incorrect value %lx for desired_access to file %s\n",
410 (unsigned long)desired_access, fname));
416 * Set the special bit that means allow share delete.
417 * This is held outside the normal share mode bits at 1<<15.
421 if(share_access & FILE_SHARE_DELETE)
422 smb_open_mode |= ALLOW_SHARE_DELETE;
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);
429 case FILE_SHARE_WRITE:
430 smb_open_mode |= SET_DENY_MODE(DENY_READ);
432 case (FILE_SHARE_READ|FILE_SHARE_WRITE):
433 smb_open_mode |= SET_DENY_MODE(DENY_NONE);
435 case FILE_SHARE_NONE:
436 smb_open_mode |= SET_DENY_MODE(DENY_ALL);
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 %lx, share access %lx, file attributes %lx \
448 to open_mode %x\n", (unsigned long)desired_access, (unsigned long)share_access,
449 (unsigned long)file_attributes, smb_open_mode ));
451 return smb_open_mode;
455 * This is a *disgusting* hack.
456 * This is *so* bad that even I'm embarrassed (and I
457 * have no shame). Here's the deal :
458 * Until we get the correct SPOOLSS code into smbd
459 * then when we're running with NT SMB support then
460 * NT makes this call with a level of zero, and then
461 * immediately follows it with an open request to
462 * the \\SRVSVC pipe. If we allow that open to
463 * succeed then NT barfs when it cannot open the
464 * \\SPOOLSS pipe immediately after and continually
465 * whines saying "Printer name is invalid" forever
466 * after. If we cause *JUST THIS NEXT OPEN* of \\SRVSVC
467 * to fail, then NT downgrades to using the downlevel code
468 * and everything works as well as before. I hate
469 * myself for adding this code.... JRA.
471 * The HACK_FAIL_TIME define allows only a 2
472 * second window for this to occur, just in
476 static BOOL fail_next_srvsvc = False;
477 static time_t fail_time;
478 #define HACK_FAIL_TIME 2 /* In seconds. */
480 void fail_next_srvsvc_open(void)
482 /* Check client is WinNT proper; Win2K doesn't like Jeremy's hack - matty */
483 if (get_remote_arch() != RA_WINNT)
486 fail_next_srvsvc = True;
487 fail_time = time(NULL);
488 DEBUG(10,("fail_next_srvsvc_open: setting up timeout close of \\srvsvc pipe for print fix.\n"));
492 * HACK alert.... see above - JRA.
495 BOOL should_fail_next_srvsvc_open(const char *pipename)
498 DEBUG(10,("should_fail_next_srvsvc_open: fail = %d, pipe = %s\n",
499 (int)fail_next_srvsvc, pipename));
501 if(fail_next_srvsvc && (time(NULL) > fail_time + HACK_FAIL_TIME)) {
502 fail_next_srvsvc = False;
503 fail_time = (time_t)0;
504 DEBUG(10,("should_fail_next_srvsvc_open: End of timeout close of \\srvsvc pipe for print fix.\n"));
507 if(fail_next_srvsvc && strequal(pipename, "srvsvc")) {
508 fail_next_srvsvc = False;
509 DEBUG(10,("should_fail_next_srvsvc_open: Deliberately failing open of \\srvsvc pipe for print fix.\n"));
516 /****************************************************************************
517 Reply to an NT create and X call on a pipe.
518 ****************************************************************************/
519 static int nt_open_pipe(char *fname, connection_struct *conn,
520 char *inbuf, char *outbuf, int *ppnum)
522 pipes_struct *p = NULL;
524 uint16 vuid = SVAL(inbuf, smb_uid);
527 DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
529 /* See if it is one we want to handle. */
530 for( i = 0; known_nt_pipes[i]; i++ )
531 if( strequal(fname,known_nt_pipes[i]))
534 if ( known_nt_pipes[i] == NULL )
535 return(ERROR(ERRSRV,ERRaccess));
537 /* Strip \\ off the name. */
540 if(should_fail_next_srvsvc_open(fname))
541 return (ERROR(ERRSRV,ERRaccess));
543 DEBUG(3,("nt_open_pipe: Known pipe %s opening.\n", fname));
545 p = open_rpc_pipe_p(fname, conn, vuid);
547 return(ERROR(ERRSRV,ERRnofids));
554 /****************************************************************************
555 Reply to an NT create and X call.
556 ****************************************************************************/
558 int reply_ntcreate_and_X(connection_struct *conn,
559 char *inbuf,char *outbuf,int length,int bufsize)
562 uint32 flags = IVAL(inbuf,smb_ntcreate_Flags);
563 uint32 desired_access = IVAL(inbuf,smb_ntcreate_DesiredAccess);
564 uint32 file_attributes = IVAL(inbuf,smb_ntcreate_FileAttributes);
565 uint32 share_access = IVAL(inbuf,smb_ntcreate_ShareAccess);
566 uint32 create_disposition = IVAL(inbuf,smb_ntcreate_CreateDisposition);
567 uint32 create_options = IVAL(inbuf,smb_ntcreate_CreateOptions);
568 uint32 fname_len = MIN(((uint32)SVAL(inbuf,smb_ntcreate_NameLength)),
569 ((uint32)sizeof(fname)-1));
570 uint16 root_dir_fid = (uint16)IVAL(inbuf,smb_ntcreate_RootDirectoryFid);
573 int smb_attr = (file_attributes & SAMBA_ATTRIBUTES_MASK);
574 /* Breakout the oplock request bits so we can set the
575 reply bits separately. */
576 int oplock_request = 0;
580 SMB_OFF_T file_len = 0;
581 SMB_STRUCT_STAT sbuf;
583 BOOL bad_path = False;
584 files_struct *fsp=NULL;
586 BOOL stat_open_only = False;
589 * We need to construct the open_and_X ofun value from the
590 * NT values, as that's what our code is structured to accept.
593 if((smb_ofun = map_create_disposition( create_disposition )) == -1)
594 return(ERROR(ERRDOS,ERRbadaccess));
600 if(root_dir_fid != 0) {
602 * This filename is relative to a directory fid.
604 files_struct *dir_fsp = file_fsp(inbuf,smb_ntcreate_RootDirectoryFid);
608 return(ERROR(ERRDOS,ERRbadfid));
610 if(!dir_fsp->is_directory) {
612 * Check to see if this is a mac fork of some kind.
615 get_filename(&fname[0], inbuf, smb_buf(inbuf)-inbuf,
616 smb_buflen(inbuf),fname_len);
618 if( fname[0] == ':') {
619 SSVAL(outbuf, smb_flg2, FLAGS2_32_BIT_ERROR_CODES);
620 return(ERROR(0, 0xc0000000|NT_STATUS_OBJECT_PATH_NOT_FOUND));
622 return(ERROR(ERRDOS,ERRbadfid));
626 * Copy in the base directory name.
629 pstrcpy( fname, dir_fsp->fsp_name );
630 dir_name_len = strlen(fname);
633 * Ensure it ends in a '\'.
636 if(fname[dir_name_len-1] != '\\' && fname[dir_name_len-1] != '/') {
637 pstrcat(fname, "\\");
642 * This next calculation can refuse a correct filename if we're dealing
643 * with the Win2k unicode bug, but that would be rare. JRA.
646 if(fname_len + dir_name_len >= sizeof(pstring))
647 return(ERROR(ERRSRV,ERRfilespecs));
649 get_filename(&fname[dir_name_len], inbuf, smb_buf(inbuf)-inbuf,
650 smb_buflen(inbuf),fname_len);
654 get_filename(fname, inbuf, smb_buf(inbuf)-inbuf,
655 smb_buflen(inbuf),fname_len);
658 /* If it's an IPC, use the pipe handler. */
660 if (IS_IPC(conn) && lp_nt_pipe_support()) {
662 int ret = nt_open_pipe(fname, conn, inbuf, outbuf, &pnum);
667 * Deal with pipe return.
670 set_message(outbuf,34,0,True);
672 p = outbuf + smb_vwv2;
676 SIVAL(p,0,FILE_WAS_OPENED);
679 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
682 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
684 SSVAL(p,2, 0x5FF); /* ? */
686 DEBUG(5,("reply_ntcreate_and_X: open pipe = %s\n", fname));
688 return chain_reply(inbuf,outbuf,length,bufsize);
692 * Now contruct the smb_open_mode value from the filename,
693 * desired access and the share access.
695 RESOLVE_DFSPATH(fname, conn, inbuf, outbuf);
697 if((smb_open_mode = map_share_mode(&stat_open_only, fname, desired_access,
699 file_attributes)) == -1)
700 return(ERROR(ERRDOS,ERRbadaccess));
702 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
703 oplock_request |= (flags & REQUEST_BATCH_OPLOCK) ? BATCH_OPLOCK : 0;
706 * Ordinary file or directory.
710 * Check if POSIX semantics are wanted.
713 set_posix_case_semantics(file_attributes);
715 unix_convert(fname,conn,0,&bad_path,NULL);
719 restore_case_semantics(file_attributes);
720 return(ERROR(ERRSRV,ERRnofids));
723 if (!check_name(fname,conn)) {
724 if((errno == ENOENT) && bad_path) {
725 unix_ERR_class = ERRDOS;
726 unix_ERR_code = ERRbadpath;
730 restore_case_semantics(file_attributes);
732 return(UNIXERROR(ERRDOS,ERRnoaccess));
735 unixmode = unix_mode(conn,smb_attr | aARCH, fname);
738 * If it's a request for a directory open, deal with it separately.
741 if(create_options & FILE_DIRECTORY_FILE) {
744 open_directory(fsp, conn, fname, smb_ofun,
745 unixmode, &smb_action);
747 restore_case_semantics(file_attributes);
751 return(UNIXERROR(ERRDOS,ERRnoaccess));
755 * Ordinary file case.
758 /* NB. We have a potential bug here. If we
759 * cause an oplock break to ourselves, then we
760 * could end up processing filename related
761 * SMB requests whilst we await the oplock
762 * break response. As we may have changed the
763 * filename case semantics to be POSIX-like,
764 * this could mean a filename request could
765 * fail when it should succeed. This is a rare
766 * condition, but eventually we must arrange
767 * to restore the correct case semantics
768 * before issuing an oplock break request to
769 * our client. JRA. */
771 open_file_shared(fsp,conn,fname,smb_open_mode,
772 smb_ofun,unixmode, oplock_request,&rmode,&smb_action);
775 /* We cheat here. There are two cases we
776 * care about. One is a directory rename,
777 * where the NT client will attempt to
778 * open the source directory for
779 * DELETE access. Note that when the
780 * NT client does this it does *not*
781 * set the directory bit in the
782 * request packet. This is translated
783 * into a read/write open
784 * request. POSIX states that any open
785 * for write request on a directory
786 * will generate an EISDIR error, so
787 * we can catch this here and open a
788 * pseudo handle that is flagged as a
789 * directory. The second is an open
790 * for a permissions read only, which
791 * we handle in the open_file_stat case. JRA.
794 if(errno == EISDIR) {
797 * Fail the open if it was explicitly a non-directory file.
800 if (create_options & FILE_NON_DIRECTORY_FILE) {
802 restore_case_semantics(file_attributes);
803 SSVAL(outbuf, smb_flg2, FLAGS2_32_BIT_ERROR_CODES);
804 return(ERROR(0, 0xc0000000|NT_STATUS_FILE_IS_A_DIRECTORY));
808 open_directory(fsp, conn, fname, smb_ofun, unixmode, &smb_action);
812 restore_case_semantics(file_attributes);
813 return(UNIXERROR(ERRDOS,ERRnoaccess));
816 } else if (((errno == EACCES) || (errno == EROFS)) && stat_open_only) {
818 } else if (errno == EACCES && stat_open_only) {
821 * We couldn't open normally and all we want
822 * are the permissions. Try and do a stat open.
827 open_file_stat(fsp,conn,fname,smb_open_mode,&sbuf,&smb_action);
831 restore_case_semantics(file_attributes);
832 return(UNIXERROR(ERRDOS,ERRnoaccess));
837 if((errno == ENOENT) && bad_path) {
838 unix_ERR_class = ERRDOS;
839 unix_ERR_code = ERRbadpath;
844 restore_case_semantics(file_attributes);
846 return(UNIXERROR(ERRDOS,ERRnoaccess));
851 if(fsp->is_directory) {
852 if(conn->vfs_ops.stat(dos_to_unix(fsp->fsp_name, False), &sbuf) != 0) {
853 close_file(fsp,True);
854 restore_case_semantics(file_attributes);
855 return(ERROR(ERRDOS,ERRnoaccess));
858 if (conn->vfs_ops.fstat(fsp->fd_ptr->fd,&sbuf) != 0) {
859 close_file(fsp,False);
860 restore_case_semantics(file_attributes);
861 return(ERROR(ERRDOS,ERRnoaccess));
865 restore_case_semantics(file_attributes);
867 file_len = sbuf.st_size;
868 fmode = dos_mode(conn,fname,&sbuf);
870 fmode = FILE_ATTRIBUTE_NORMAL;
871 if (!fsp->is_directory && (fmode & aDIR)) {
872 close_file(fsp,False);
873 return(ERROR(ERRDOS,ERRnoaccess));
877 * If the caller set the extended oplock request bit
878 * and we granted one (by whatever means) - set the
879 * correct bit for extended oplock reply.
882 if (oplock_request && lp_fake_oplocks(SNUM(conn)))
883 smb_action |= EXTENDED_OPLOCK_GRANTED;
885 if(oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))
886 smb_action |= EXTENDED_OPLOCK_GRANTED;
888 set_message(outbuf,34,0,True);
890 p = outbuf + smb_vwv2;
893 * Currently as we don't support level II oplocks we just report
894 * exclusive & batch here.
897 if (smb_action & EXTENDED_OPLOCK_GRANTED)
898 SCVAL(p,0, BATCH_OPLOCK_RETURN);
899 else if (LEVEL_II_OPLOCK_TYPE(fsp->oplock_type))
900 SCVAL(p,0, LEVEL_II_OPLOCK_RETURN);
902 SCVAL(p,0,NO_OPLOCK_RETURN);
905 SSVAL(p,0,fsp->fnum);
907 SIVAL(p,0,smb_action);
911 put_long_date(p,get_create_time(&sbuf,lp_fake_dir_create_times(SNUM(conn))));
913 put_long_date(p,sbuf.st_atime); /* access time */
915 put_long_date(p,sbuf.st_mtime); /* write time */
917 put_long_date(p,sbuf.st_mtime); /* change time */
919 SIVAL(p,0,fmode); /* File Attributes. */
921 SOFF_T(p, 0, file_len);
923 SOFF_T(p,0,file_len);
925 SCVAL(p,0,fsp->is_directory ? 1 : 0);
927 DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n", fsp->fnum, fsp->fsp_name));
929 return chain_reply(inbuf,outbuf,length,bufsize);
932 /****************************************************************************
933 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
934 ****************************************************************************/
936 static int call_nt_transact_create(connection_struct *conn,
937 char *inbuf, char *outbuf, int length,
938 int bufsize, char **ppsetup, char **ppparams,
942 char *params = *ppparams;
943 int total_parameter_count = (int)IVAL(inbuf, smb_nt_TotalParameterCount);
944 uint32 flags = IVAL(params,0);
945 uint32 desired_access = IVAL(params,8);
946 uint32 file_attributes = IVAL(params,20);
947 uint32 share_access = IVAL(params,24);
948 uint32 create_disposition = IVAL(params,28);
949 uint32 create_options = IVAL(params,32);
950 uint32 fname_len = MIN(((uint32)IVAL(params,44)),
951 ((uint32)sizeof(fname)-1));
952 uint16 root_dir_fid = (uint16)IVAL(params,4);
955 int smb_attr = (file_attributes & SAMBA_ATTRIBUTES_MASK);
956 /* Breakout the oplock request bits so we can set the
957 reply bits separately. */
958 int oplock_request = 0;
962 SMB_OFF_T file_len = 0;
963 SMB_STRUCT_STAT sbuf;
965 BOOL bad_path = False;
966 files_struct *fsp = NULL;
968 BOOL stat_open_only = False;
971 * We need to construct the open_and_X ofun value from the
972 * NT values, as that's what our code is structured to accept.
975 if((smb_ofun = map_create_disposition( create_disposition )) == -1)
976 return(ERROR(ERRDOS,ERRbadaccess));
982 if(root_dir_fid != 0) {
984 * This filename is relative to a directory fid.
987 files_struct *dir_fsp = file_fsp(params,4);
991 return(ERROR(ERRDOS,ERRbadfid));
993 if(!dir_fsp->is_directory) {
995 * Check to see if this is a mac fork of some kind.
998 get_filename(&fname[0], params, 53, total_parameter_count - 53 - fname_len, fname_len);
1000 if( fname[0] == ':') {
1001 SSVAL(outbuf, smb_flg2, FLAGS2_32_BIT_ERROR_CODES);
1002 return(ERROR(0, 0xc0000000|NT_STATUS_OBJECT_PATH_NOT_FOUND));
1005 return(ERROR(ERRDOS,ERRbadfid));
1009 * Copy in the base directory name.
1012 pstrcpy( fname, dir_fsp->fsp_name );
1013 dir_name_len = strlen(fname);
1016 * Ensure it ends in a '\'.
1019 if((fname[dir_name_len-1] != '\\') && (fname[dir_name_len-1] != '/')) {
1020 pstrcat(fname, "\\");
1025 * This next calculation can refuse a correct filename if we're dealing
1026 * with the Win2k unicode bug, but that would be rare. JRA.
1029 if(fname_len + dir_name_len >= sizeof(pstring))
1030 return(ERROR(ERRSRV,ERRfilespecs));
1032 get_filename(&fname[dir_name_len], params, 53, total_parameter_count - 53 - fname_len, fname_len);
1035 get_filename(&fname[0], params, 53, total_parameter_count - 53 - fname_len, fname_len);
1038 /* If it's an IPC, use the pipe handler. */
1040 int ret = nt_open_pipe(fname, conn, inbuf, outbuf, &pnum);
1043 smb_action = FILE_WAS_OPENED;
1047 * Now contruct the smb_open_mode value from the desired access
1048 * and the share access.
1051 if((smb_open_mode = map_share_mode( &stat_open_only, fname, desired_access,
1052 share_access, file_attributes)) == -1)
1053 return(ERROR(ERRDOS,ERRbadaccess));
1055 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1056 oplock_request |= (flags & REQUEST_BATCH_OPLOCK) ? BATCH_OPLOCK : 0;
1059 * Check if POSIX semantics are wanted.
1062 set_posix_case_semantics(file_attributes);
1064 RESOLVE_DFSPATH(fname, conn, inbuf, outbuf);
1066 unix_convert(fname,conn,0,&bad_path,NULL);
1070 restore_case_semantics(file_attributes);
1071 return(ERROR(ERRSRV,ERRnofids));
1074 if (!check_name(fname,conn)) {
1075 if((errno == ENOENT) && bad_path) {
1076 unix_ERR_class = ERRDOS;
1077 unix_ERR_code = ERRbadpath;
1081 restore_case_semantics(file_attributes);
1083 return(UNIXERROR(ERRDOS,ERRnoaccess));
1086 unixmode = unix_mode(conn,smb_attr | aARCH, fname);
1089 * If it's a request for a directory open, deal with it separately.
1092 if(create_options & FILE_DIRECTORY_FILE) {
1097 * We will get a create directory here if the Win32
1098 * app specified a security descriptor in the
1099 * CreateDirectory() call.
1102 open_directory(fsp, conn, fname, smb_ofun, unixmode, &smb_action);
1106 restore_case_semantics(file_attributes);
1107 return(UNIXERROR(ERRDOS,ERRnoaccess));
1110 if(conn->vfs_ops.stat(dos_to_unix(fsp->fsp_name, False),
1112 close_file(fsp,True);
1113 restore_case_semantics(file_attributes);
1114 return(ERROR(ERRDOS,ERRnoaccess));
1120 * Ordinary file case.
1123 open_file_shared(fsp,conn,fname,smb_open_mode,smb_ofun,unixmode,
1124 oplock_request,&rmode,&smb_action);
1128 if(errno == EISDIR) {
1131 * Fail the open if it was explicitly a non-directory file.
1134 if (create_options & FILE_NON_DIRECTORY_FILE) {
1136 restore_case_semantics(file_attributes);
1137 SSVAL(outbuf, smb_flg2, FLAGS2_32_BIT_ERROR_CODES);
1138 return(ERROR(0, 0xc0000000|NT_STATUS_FILE_IS_A_DIRECTORY));
1142 open_directory(fsp, conn, fname, smb_ofun, unixmode, &smb_action);
1146 restore_case_semantics(file_attributes);
1147 return(UNIXERROR(ERRDOS,ERRnoaccess));
1150 } else if (((errno == EACCES) || (errno == EROFS)) && stat_open_only) {
1152 } else if (errno == EACCES && stat_open_only) {
1156 * We couldn't open normally and all we want
1157 * are the permissions. Try and do a stat open.
1162 open_file_stat(fsp,conn,fname,smb_open_mode,&sbuf,&smb_action);
1166 restore_case_semantics(file_attributes);
1167 return(UNIXERROR(ERRDOS,ERRnoaccess));
1171 if((errno == ENOENT) && bad_path) {
1172 unix_ERR_class = ERRDOS;
1173 unix_ERR_code = ERRbadpath;
1177 restore_case_semantics(file_attributes);
1179 return(UNIXERROR(ERRDOS,ERRnoaccess));
1183 if(fsp->is_directory) {
1184 if(conn->vfs_ops.stat(dos_to_unix(fsp->fsp_name,False), &sbuf) != 0) {
1185 close_file(fsp,True);
1186 restore_case_semantics(file_attributes);
1187 return(ERROR(ERRDOS,ERRnoaccess));
1190 if (!fsp->stat_open && conn->vfs_ops.fstat(fsp->fd_ptr->fd,&sbuf) != 0) {
1191 close_file(fsp,False);
1192 restore_case_semantics(file_attributes);
1193 return(ERROR(ERRDOS,ERRnoaccess));
1197 file_len = sbuf.st_size;
1198 fmode = dos_mode(conn,fname,&sbuf);
1200 fmode = FILE_ATTRIBUTE_NORMAL;
1203 close_file(fsp,False);
1204 restore_case_semantics(file_attributes);
1205 return(ERROR(ERRDOS,ERRnoaccess));
1209 * If the caller set the extended oplock request bit
1210 * and we granted one (by whatever means) - set the
1211 * correct bit for extended oplock reply.
1214 if (oplock_request && lp_fake_oplocks(SNUM(conn)))
1215 smb_action |= EXTENDED_OPLOCK_GRANTED;
1217 if(oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))
1218 smb_action |= EXTENDED_OPLOCK_GRANTED;
1222 restore_case_semantics(file_attributes);
1224 /* Realloc the size of parameters and data we will return */
1225 params = *ppparams = Realloc(*ppparams, 69);
1227 return(ERROR(ERRDOS,ERRnomem));
1229 memset((char *)params,'\0',69);
1232 if (smb_action & EXTENDED_OPLOCK_GRANTED)
1233 SCVAL(p,0, BATCH_OPLOCK_RETURN);
1234 else if (LEVEL_II_OPLOCK_TYPE(fsp->oplock_type))
1235 SCVAL(p,0, LEVEL_II_OPLOCK_RETURN);
1237 SCVAL(p,0,NO_OPLOCK_RETURN);
1243 SSVAL(p,0,fsp->fnum);
1246 SIVAL(p,0,smb_action);
1251 * Deal with pipe return.
1254 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
1257 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
1259 SSVAL(p,2, 0x5FF); /* ? */
1262 * Deal with file return.
1265 put_long_date(p,get_create_time(&sbuf,lp_fake_dir_create_times(SNUM(conn))));
1267 put_long_date(p,sbuf.st_atime); /* access time */
1269 put_long_date(p,sbuf.st_mtime); /* write time */
1271 put_long_date(p,sbuf.st_mtime); /* change time */
1273 SIVAL(p,0,fmode); /* File Attributes. */
1275 SOFF_T(p,0,file_len);
1277 SOFF_T(p,0,file_len);
1280 DEBUG(5,("call_nt_transact_create: open name = %s\n", fname));
1282 /* Send the required number of replies */
1283 send_nt_replies(inbuf, outbuf, bufsize, 0, params, 69, *ppdata, 0);
1288 /****************************************************************************
1289 Reply to a NT CANCEL request.
1290 ****************************************************************************/
1291 int reply_ntcancel(connection_struct *conn,
1292 char *inbuf,char *outbuf,int length,int bufsize)
1295 * Go through and cancel any pending change notifies.
1298 int mid = SVAL(inbuf,smb_mid);
1299 remove_pending_change_notify_requests_by_mid(mid);
1300 remove_pending_lock_requests_by_mid(mid);
1302 DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", mid));
1307 /****************************************************************************
1308 Reply to an unsolicited SMBNTtranss - just ignore it!
1309 ****************************************************************************/
1310 int reply_nttranss(connection_struct *conn,
1311 char *inbuf,char *outbuf,int length,int bufsize)
1313 DEBUG(4,("Ignoring nttranss of length %d\n",length));
1317 /****************************************************************************
1318 Reply to an NT transact rename command.
1319 ****************************************************************************/
1321 static int call_nt_transact_rename(connection_struct *conn,
1322 char *inbuf, char *outbuf, int length,
1324 char **ppsetup, char **ppparams, char **ppdata)
1326 char *params = *ppparams;
1328 files_struct *fsp = file_fsp(params, 0);
1329 BOOL replace_if_exists = (SVAL(params,2) & RENAME_REPLACE_IF_EXISTS) ? True : False;
1330 uint32 fname_len = MIN((((uint32)IVAL(inbuf,smb_nt_TotalParameterCount)-4)),
1331 ((uint32)sizeof(new_name)-1));
1334 CHECK_FSP(fsp, conn);
1335 StrnCpy(new_name,params+4,fname_len);
1336 new_name[fname_len] = '\0';
1338 outsize = rename_internals(conn, inbuf, outbuf, fsp->fsp_name,
1339 new_name, replace_if_exists);
1342 * Rename was successful.
1344 send_nt_replies(inbuf, outbuf, bufsize, 0, NULL, 0, NULL, 0);
1346 DEBUG(3,("nt transact rename from = %s, to = %s succeeded.\n",
1347 fsp->fsp_name, new_name));
1355 /****************************************************************************
1356 This is the structure to keep the information needed to
1357 determine if a directory has changed.
1358 *****************************************************************************/
1361 time_t modify_time; /* Info from the directory we're monitoring. */
1362 time_t status_time; /* Info from the directory we're monitoring. */
1363 time_t total_time; /* Total time of all directory entries - don't care if it wraps. */
1364 unsigned int num_entries; /* Zero or the number of files in the directory. */
1367 /****************************************************************************
1368 This is the structure to queue to implement NT change
1369 notify. It consists of smb_size bytes stored from the
1370 transact command (to keep the mid, tid etc around).
1371 Plus the fid to examine and the time to check next.
1372 *****************************************************************************/
1375 ubi_slNode msg_next;
1377 connection_struct *conn;
1379 time_t next_check_time;
1380 change_hash_data change_data;
1381 char request_buf[smb_size];
1382 } change_notify_buf;
1384 static ubi_slList change_notify_queue = { NULL, (ubi_slNodePtr)&change_notify_queue, 0};
1386 /****************************************************************************
1387 Setup the common parts of the return packet and send it.
1388 *****************************************************************************/
1390 static void change_notify_reply_packet(char *inbuf, int error_class, uint32 error_code)
1393 char outbuf[smb_size+38];
1395 memset(outbuf, '\0', sizeof(outbuf));
1396 construct_reply_common(inbuf, outbuf);
1399 * If we're returning a 'too much in the directory changed' we need to
1400 * set this is an NT error status flags. If we don't then the (probably
1401 * untested) code in the NT redirector has a bug in that it doesn't re-issue
1402 * the change notify.... Ah - I *love* it when I get so deeply into this I
1403 * can even determine how MS failed to test stuff and why.... :-). JRA.
1406 if(error_class == 0) /* NT Error. */
1407 SSVAL(outbuf,smb_flg2, SVAL(outbuf,smb_flg2) | FLAGS2_32_BIT_ERROR_CODES);
1409 ERROR(error_class,error_code);
1412 * Seems NT needs a transact command with an error code
1413 * in it. This is a longer packet than a simple error.
1415 set_message(outbuf,18,0,False);
1417 send_smb(Client,outbuf);
1420 /****************************************************************************
1421 Create the hash we will use to determine if the contents changed.
1422 *****************************************************************************/
1424 static BOOL create_directory_notify_hash( change_notify_buf *cnbp, change_hash_data *change_data)
1427 files_struct *fsp = cnbp->fsp;
1429 memset((char *)change_data, '\0', sizeof(change_data));
1432 * Store the current timestamp on the directory we are monitoring.
1435 if(dos_stat(fsp->fsp_name, &st) < 0) {
1436 DEBUG(0,("create_directory_notify_hash: Unable to stat name = %s. \
1437 Error was %s\n", fsp->fsp_name, strerror(errno) ));
1441 change_data->modify_time = st.st_mtime;
1442 change_data->status_time = st.st_ctime;
1445 * If we are to watch for changes that are only stored
1446 * in inodes of files, not in the directory inode, we must
1447 * scan the directory and produce a unique identifier with
1448 * which we can determine if anything changed. We use the
1449 * modify and change times from all the files in the
1450 * directory, added together (ignoring wrapping if it's
1451 * larger than the max time_t value).
1454 if(cnbp->flags & (FILE_NOTIFY_CHANGE_SIZE|FILE_NOTIFY_CHANGE_LAST_WRITE)) {
1458 size_t remaining_len;
1459 size_t fullname_len;
1460 void *dp = OpenDir(cnbp->conn, fsp->fsp_name, True);
1463 DEBUG(0,("create_directory_notify_hash: Unable to open directory = %s. \
1464 Error was %s\n", fsp->fsp_name, strerror(errno) ));
1468 change_data->num_entries = 0;
1470 pstrcpy(full_name, fsp->fsp_name);
1471 pstrcat(full_name, "/");
1473 fullname_len = strlen(full_name);
1474 remaining_len = sizeof(full_name) - fullname_len - 1;
1475 p = &full_name[fullname_len];
1477 while ((fname = ReadDirName(dp))) {
1478 if(strequal(fname, ".") || strequal(fname, ".."))
1481 change_data->num_entries++;
1482 safe_strcpy( p, fname, remaining_len);
1484 memset(&st, '\0', sizeof(st));
1487 * Do the stat - but ignore errors.
1490 if(dos_stat(full_name, &st) < 0) {
1491 DEBUG(5,("create_directory_notify_hash: Unable to stat content file = %s. \
1492 Error was %s\n", fsp->fsp_name, strerror(errno) ));
1494 change_data->total_time += (st.st_mtime + st.st_ctime);
1503 /****************************************************************************
1504 Delete entries by fnum from the change notify pending queue.
1505 *****************************************************************************/
1507 void remove_pending_change_notify_requests_by_fid(files_struct *fsp)
1509 change_notify_buf *cnbp = (change_notify_buf *)ubi_slFirst( &change_notify_queue );
1510 change_notify_buf *prev = NULL;
1512 while(cnbp != NULL) {
1513 if(cnbp->fsp->fnum == fsp->fnum) {
1514 free((char *)ubi_slRemNext( &change_notify_queue, prev));
1515 cnbp = (change_notify_buf *)(prev ? ubi_slNext(prev) : ubi_slFirst(&change_notify_queue));
1520 cnbp = (change_notify_buf *)ubi_slNext(cnbp);
1524 /****************************************************************************
1525 Delete entries by mid from the change notify pending queue. Always send reply.
1526 *****************************************************************************/
1528 static void remove_pending_change_notify_requests_by_mid(int mid)
1530 change_notify_buf *cnbp = (change_notify_buf *)ubi_slFirst( &change_notify_queue );
1531 change_notify_buf *prev = NULL;
1533 while(cnbp != NULL) {
1534 if(SVAL(cnbp->request_buf,smb_mid) == mid) {
1535 change_notify_reply_packet(cnbp->request_buf,0,0xC0000000 |NT_STATUS_CANCELLED);
1536 free((char *)ubi_slRemNext( &change_notify_queue, prev));
1537 cnbp = (change_notify_buf *)(prev ? ubi_slNext(prev) : ubi_slFirst(&change_notify_queue));
1542 cnbp = (change_notify_buf *)ubi_slNext(cnbp);
1546 /****************************************************************************
1547 Delete entries by filename and cnum from the change notify pending queue.
1549 *****************************************************************************/
1551 void remove_pending_change_notify_requests_by_filename(files_struct *fsp)
1553 change_notify_buf *cnbp = (change_notify_buf *)ubi_slFirst( &change_notify_queue );
1554 change_notify_buf *prev = NULL;
1556 while(cnbp != NULL) {
1558 * We know it refers to the same directory if the connection number and
1559 * the filename are identical.
1561 if((cnbp->fsp->conn == fsp->conn) && strequal(cnbp->fsp->fsp_name,fsp->fsp_name)) {
1562 change_notify_reply_packet(cnbp->request_buf,0,0xC0000000 |NT_STATUS_CANCELLED);
1563 free((char *)ubi_slRemNext( &change_notify_queue, prev));
1564 cnbp = (change_notify_buf *)(prev ? ubi_slNext(prev) : ubi_slFirst(&change_notify_queue));
1569 cnbp = (change_notify_buf *)ubi_slNext(cnbp);
1573 /****************************************************************************
1574 Process the change notify queue. Note that this is only called as root.
1575 Returns True if there are still outstanding change notify requests on the
1577 *****************************************************************************/
1579 BOOL process_pending_change_notify_queue(time_t t)
1581 change_notify_buf *cnbp = (change_notify_buf *)ubi_slFirst( &change_notify_queue );
1582 change_notify_buf *prev = NULL;
1587 if(cnbp->next_check_time >= t)
1591 * It's time to check. Go through the queue and see if
1592 * the timestamps changed.
1595 while((cnbp != NULL) && (cnbp->next_check_time <= t)) {
1596 change_hash_data change_data;
1597 connection_struct *conn = cnbp->conn;
1598 uint16 vuid = (lp_security() == SEC_SHARE) ? UID_FIELD_INVALID :
1599 SVAL(cnbp->request_buf,smb_uid);
1602 * Ensure we don't have any old chain_fsp values
1603 * sitting around....
1608 if(!become_user(conn,vuid)) {
1609 DEBUG(0,("process_pending_change_notify_queue: Unable to become user vuid=%d.\n",
1612 * Remove the entry and return an error to the client.
1614 change_notify_reply_packet(cnbp->request_buf,ERRSRV,ERRaccess);
1615 free((char *)ubi_slRemNext( &change_notify_queue, prev));
1616 cnbp = (change_notify_buf *)(prev ? ubi_slNext(prev) : ubi_slFirst(&change_notify_queue));
1620 if(!become_service(conn,True)) {
1621 DEBUG(0,("process_pending_change_notify_queue: Unable to become service Error was %s.\n", strerror(errno) ));
1623 * Remove the entry and return an error to the client.
1625 change_notify_reply_packet(cnbp->request_buf,ERRSRV,ERRaccess);
1626 free((char *)ubi_slRemNext( &change_notify_queue, prev));
1627 cnbp = (change_notify_buf *)(prev ? ubi_slNext(prev) : ubi_slFirst(&change_notify_queue));
1632 if(!create_directory_notify_hash( cnbp, &change_data)) {
1633 DEBUG(0,("process_pending_change_notify_queue: Unable to create change data for \
1634 directory %s\n", cnbp->fsp->fsp_name ));
1636 * Remove the entry and return an error to the client.
1638 change_notify_reply_packet(cnbp->request_buf,ERRSRV,ERRaccess);
1639 free((char *)ubi_slRemNext( &change_notify_queue, prev));
1640 cnbp = (change_notify_buf *)(prev ? ubi_slNext(prev) : ubi_slFirst(&change_notify_queue));
1645 if(memcmp( (char *)&cnbp->change_data, (char *)&change_data, sizeof(change_data))) {
1647 * Remove the entry and return a change notify to the client.
1649 DEBUG(5,("process_pending_change_notify_queue: directory name = %s changed.\n",
1650 cnbp->fsp->fsp_name ));
1651 change_notify_reply_packet(cnbp->request_buf,0,NT_STATUS_NOTIFY_ENUM_DIR);
1652 free((char *)ubi_slRemNext( &change_notify_queue, prev));
1653 cnbp = (change_notify_buf *)(prev ? ubi_slNext(prev) : ubi_slFirst(&change_notify_queue));
1661 * Move to the next in the list.
1664 cnbp = (change_notify_buf *)ubi_slNext(cnbp);
1667 return (cnbp != NULL);
1670 /****************************************************************************
1671 Return true if there are pending change notifies.
1672 ****************************************************************************/
1674 BOOL change_notifies_pending(void)
1676 change_notify_buf *cnbp = (change_notify_buf *)ubi_slFirst( &change_notify_queue );
1677 return (cnbp != NULL);
1680 /****************************************************************************
1681 Reply to a notify change - queue the request and
1682 don't allow a directory to be opened.
1683 ****************************************************************************/
1685 static int call_nt_transact_notify_change(connection_struct *conn,
1686 char *inbuf, char *outbuf, int length,
1689 char **ppparams, char **ppdata)
1691 char *setup = *ppsetup;
1693 change_notify_buf *cnbp;
1695 fsp = file_fsp(setup,4);
1697 DEBUG(3,("call_nt_transact_notify_change\n"));
1700 return(ERROR(ERRDOS,ERRbadfid));
1702 if((!fsp->open) || (!fsp->is_directory) || (conn != fsp->conn))
1703 return(ERROR(ERRDOS,ERRbadfid));
1706 * Now queue an entry on the notify change stack. We timestamp
1707 * the entry we are adding so that we know when to scan next.
1708 * We only need to save smb_size bytes from this incoming packet
1709 * as we will always by returning a 'read the directory yourself'
1713 if((cnbp = (change_notify_buf *)malloc(sizeof(change_notify_buf))) == NULL) {
1714 DEBUG(0,("call_nt_transact_notify_change: malloc fail !\n" ));
1718 memset((char *)cnbp, '\0', sizeof(change_notify_buf));
1720 memcpy(cnbp->request_buf, inbuf, smb_size);
1723 cnbp->next_check_time = time(NULL) + lp_change_notify_timeout();
1724 cnbp->flags = IVAL(setup, 0);
1726 if(!create_directory_notify_hash( cnbp, &cnbp->change_data )) {
1728 return(UNIXERROR(ERRDOS,ERRbadfid));
1732 * Adding to the tail enables us to check only
1733 * the head when scanning for change, as this entry
1734 * is forced to have the first timeout expiration.
1737 ubi_slAddTail(&change_notify_queue, cnbp);
1739 DEBUG(3,("call_nt_transact_notify_change: notify change called on directory \
1740 name = %s\n", fsp->fsp_name ));
1745 /****************************************************************************
1746 Map unix perms to NT.
1747 ****************************************************************************/
1749 static SEC_ACCESS map_unix_perms( int *pacl_type, mode_t perm, int r_mask, int w_mask, int x_mask, BOOL is_directory)
1754 *pacl_type = SEC_ACE_TYPE_ACCESS_ALLOWED;
1756 if((perm & (r_mask|w_mask|x_mask)) == (r_mask|w_mask|x_mask)) {
1757 nt_mask = UNIX_ACCESS_RWX;
1758 } else if((perm & (r_mask|w_mask|x_mask)) == 0) {
1759 nt_mask = UNIX_ACCESS_NONE;
1761 nt_mask |= (perm & r_mask) ? UNIX_ACCESS_R : 0;
1763 nt_mask |= (perm & w_mask) ? UNIX_ACCESS_W : 0;
1765 nt_mask |= (perm & w_mask) ? UNIX_ACCESS_W : 0;
1766 nt_mask |= (perm & x_mask) ? UNIX_ACCESS_X : 0;
1768 init_sec_access(&sa,nt_mask);
1772 /****************************************************************************
1773 Reply to query a security descriptor from an fsp. If it succeeds it allocates
1774 the space for the return elements and returns True.
1775 ****************************************************************************/
1777 static size_t get_nt_acl(files_struct *fsp, SEC_DESC **ppdesc)
1779 extern DOM_SID global_sam_sid;
1780 extern DOM_SID global_sid_World;
1781 SMB_STRUCT_STAT sbuf;
1782 SEC_ACE ace_list[6];
1785 size_t sec_desc_size;
1786 SEC_ACL *psa = NULL;
1787 SEC_ACCESS owner_access;
1789 SEC_ACCESS group_access;
1791 SEC_ACCESS other_access;
1797 if(!lp_nt_acl_support()) {
1798 sid_copy( &owner_sid, &global_sid_World);
1799 sid_copy( &group_sid, &global_sid_World);
1802 if(fsp->is_directory || fsp->fd_ptr == NULL) {
1803 if(dos_stat(fsp->fsp_name, &sbuf) != 0) {
1807 if(fsp->conn->vfs_ops.fstat(fsp->fd_ptr->fd,&sbuf) != 0) {
1813 * Get the owner, group and world SIDs.
1816 sid_copy(&owner_sid, &global_sam_sid);
1817 sid_copy(&group_sid, &global_sam_sid);
1818 sid_append_rid(&owner_sid, pdb_uid_to_user_rid(sbuf.st_uid));
1819 sid_append_rid(&group_sid, pdb_gid_to_group_rid(sbuf.st_gid));
1822 * Create the generic 3 element UNIX acl.
1825 owner_access = map_unix_perms(&owner_acl_type, sbuf.st_mode,
1826 S_IRUSR, S_IWUSR, S_IXUSR, fsp->is_directory);
1827 group_access = map_unix_perms(&grp_acl_type, sbuf.st_mode,
1828 S_IRGRP, S_IWGRP, S_IXGRP, fsp->is_directory);
1829 other_access = map_unix_perms(&other_acl_type, sbuf.st_mode,
1830 S_IROTH, S_IWOTH, S_IXOTH, fsp->is_directory);
1832 if(owner_access.mask)
1833 init_sec_ace(&ace_list[num_acls++], &owner_sid, owner_acl_type,
1836 if(group_access.mask)
1837 init_sec_ace(&ace_list[num_acls++], &group_sid, grp_acl_type,
1840 if(other_access.mask)
1841 init_sec_ace(&ace_list[num_acls++], &global_sid_World, other_acl_type,
1844 if(fsp->is_directory) {
1846 * For directory ACLs we also add in the inherited permissions
1847 * ACE entries. These are the permissions a file would get when
1848 * being created in the directory.
1850 mode_t mode = unix_mode( fsp->conn, FILE_ATTRIBUTE_ARCHIVE, fsp->fsp_name);
1852 owner_access = map_unix_perms(&owner_acl_type, mode,
1853 S_IRUSR, S_IWUSR, S_IXUSR, fsp->is_directory);
1854 group_access = map_unix_perms(&grp_acl_type, mode,
1855 S_IRGRP, S_IWGRP, S_IXGRP, fsp->is_directory);
1856 other_access = map_unix_perms(&other_acl_type, mode,
1857 S_IROTH, S_IWOTH, S_IXOTH, fsp->is_directory);
1859 if(owner_access.mask)
1860 init_sec_ace(&ace_list[num_acls++], &owner_sid, owner_acl_type,
1861 owner_access, SEC_ACE_FLAG_OBJECT_INHERIT|SEC_ACE_FLAG_INHERIT_ONLY);
1863 if(group_access.mask)
1864 init_sec_ace(&ace_list[num_acls++], &group_sid, grp_acl_type,
1865 group_access, SEC_ACE_FLAG_OBJECT_INHERIT|SEC_ACE_FLAG_INHERIT_ONLY);
1867 if(other_access.mask)
1868 init_sec_ace(&ace_list[num_acls++], &global_sid_World, other_acl_type,
1869 other_access, SEC_ACE_FLAG_OBJECT_INHERIT|SEC_ACE_FLAG_INHERIT_ONLY);
1873 if((psa = make_sec_acl( 3, num_acls, ace_list)) == NULL) {
1874 DEBUG(0,("get_nt_acl: Unable to malloc space for acl.\n"));
1879 *ppdesc = make_standard_sec_desc( &owner_sid, &group_sid, psa, &sec_desc_size);
1882 DEBUG(0,("get_nt_acl: Unable to malloc space for security descriptor.\n"));
1888 return sec_desc_size;
1891 /****************************************************************************
1892 Reply to query a security descriptor - currently this is not implemented (it
1893 is planned to be though). Right now it just returns the same thing NT would
1894 when queried on a FAT filesystem. JRA.
1895 ****************************************************************************/
1897 static int call_nt_transact_query_security_desc(connection_struct *conn,
1898 char *inbuf, char *outbuf,
1899 int length, int bufsize,
1900 char **ppsetup, char **ppparams, char **ppdata)
1902 uint32 max_data_count = IVAL(inbuf,smb_nt_MaxDataCount);
1903 char *params = *ppparams;
1904 char *data = *ppdata;
1907 size_t sec_desc_size;
1909 files_struct *fsp = file_fsp(params,0);
1912 return(ERROR(ERRDOS,ERRbadfid));
1914 DEBUG(3,("call_nt_transact_query_security_desc: file = %s\n", fsp->fsp_name ));
1916 params = *ppparams = Realloc(*ppparams, 4);
1918 return(ERROR(ERRDOS,ERRnomem));
1921 * Get the permissions to return.
1924 if((sec_desc_size = get_nt_acl(fsp, &psd)) == 0)
1925 return(UNIXERROR(ERRDOS,ERRnoaccess));
1927 DEBUG(3,("call_nt_transact_query_security_desc: sec_desc_size = %d.\n",(int)sec_desc_size));
1929 SIVAL(params,0,(uint32)sec_desc_size);
1931 if(max_data_count < sec_desc_size) {
1933 free_sec_desc(&psd);
1935 send_nt_replies(inbuf, outbuf, bufsize, 0xC0000000|NT_STATUS_BUFFER_TOO_SMALL,
1936 params, 4, *ppdata, 0);
1941 * Allocate the data we will point this at.
1944 data = *ppdata = Realloc(*ppdata, sec_desc_size);
1946 free_sec_desc(&psd);
1947 return(ERROR(ERRDOS,ERRnomem));
1950 memset(data, '\0', sec_desc_size);
1953 * Init the parse struct we will marshall into.
1956 prs_init(&pd, 0, 4, MARSHALL);
1959 * Setup the prs_struct to point at the memory we just
1963 prs_give_memory( &pd, data, (uint32)sec_desc_size, False);
1966 * Finally, linearize into the outgoing buffer.
1969 if(!sec_io_desc( "sd data", &psd, &pd, 1)) {
1970 free_sec_desc(&psd);
1971 DEBUG(0,("call_nt_transact_query_security_desc: Error in marshalling \
1972 security descriptor.\n"));
1974 * Return access denied for want of a better error message..
1976 return(UNIXERROR(ERRDOS,ERRnoaccess));
1980 * Now we can delete the security descriptor.
1983 free_sec_desc(&psd);
1985 send_nt_replies(inbuf, outbuf, bufsize, 0, params, 4, data, (int)sec_desc_size);
1989 /****************************************************************************
1991 ****************************************************************************/
1993 static BOOL validate_unix_sid( DOM_SID *psid, uint32 *prid, DOM_SID *sd_sid)
1995 extern DOM_SID global_sam_sid;
1999 DEBUG(5,("validate_unix_sid: sid missing.\n"));
2003 sid_copy(psid, sd_sid);
2004 sid_copy(&sid, sd_sid);
2006 if(!sid_split_rid(&sid, prid)) {
2007 DEBUG(5,("validate_unix_sid: cannot get RID from sid.\n"));
2011 if(!sid_equal( &sid, &global_sam_sid)) {
2012 DEBUG(5,("validate_unix_sid: sid is not ours.\n"));
2019 /****************************************************************************
2020 Map NT perms to UNIX.
2021 ****************************************************************************/
2023 #define FILE_SPECIFIC_READ_BITS (FILE_READ_DATA|FILE_READ_EA|FILE_READ_ATTRIBUTES)
2024 #define FILE_SPECIFIC_WRITE_BITS (FILE_WRITE_DATA|FILE_APPEND_DATA|FILE_WRITE_EA|FILE_WRITE_ATTRIBUTES)
2025 #define FILE_SPECIFIC_EXECUTE_BITS (FILE_EXECUTE)
2027 static mode_t map_nt_perms( SEC_ACCESS sec_access, int type)
2033 if(sec_access.mask & GENERIC_ALL_ACCESS)
2034 mode = S_IRUSR|S_IWUSR|S_IXUSR;
2036 mode |= (sec_access.mask & (GENERIC_READ_ACCESS|FILE_SPECIFIC_READ_BITS)) ? S_IRUSR : 0;
2037 mode |= (sec_access.mask & (GENERIC_WRITE_ACCESS|FILE_SPECIFIC_WRITE_BITS)) ? S_IWUSR : 0;
2038 mode |= (sec_access.mask & (GENERIC_EXECUTE_ACCESS|FILE_SPECIFIC_EXECUTE_BITS)) ? S_IXUSR : 0;
2042 if(sec_access.mask & GENERIC_ALL_ACCESS)
2043 mode = S_IRGRP|S_IWGRP|S_IXGRP;
2045 mode |= (sec_access.mask & (GENERIC_READ_ACCESS|FILE_SPECIFIC_READ_BITS)) ? S_IRGRP : 0;
2046 mode |= (sec_access.mask & (GENERIC_WRITE_ACCESS|FILE_SPECIFIC_WRITE_BITS)) ? S_IWGRP : 0;
2047 mode |= (sec_access.mask & (GENERIC_EXECUTE_ACCESS|FILE_SPECIFIC_EXECUTE_BITS)) ? S_IXGRP : 0;
2051 if(sec_access.mask & GENERIC_ALL_ACCESS)
2052 mode = S_IROTH|S_IWOTH|S_IXOTH;
2054 mode |= (sec_access.mask & (GENERIC_READ_ACCESS|FILE_SPECIFIC_READ_BITS)) ? S_IROTH : 0;
2055 mode |= (sec_access.mask & (GENERIC_WRITE_ACCESS|FILE_SPECIFIC_WRITE_BITS)) ? S_IWOTH : 0;
2056 mode |= (sec_access.mask & (GENERIC_EXECUTE_ACCESS|FILE_SPECIFIC_EXECUTE_BITS)) ? S_IXOTH : 0;
2064 /****************************************************************************
2065 Unpack a SEC_DESC into a owner, group and set of UNIX permissions.
2066 ****************************************************************************/
2068 static BOOL unpack_nt_permissions(uid_t *puser, gid_t *pgrp, mode_t *pmode, uint32 security_info_sent,
2069 SEC_DESC *psd, BOOL is_directory)
2071 extern DOM_SID global_sid_World;
2076 SEC_ACL *dacl = psd->dacl;
2077 BOOL all_aces_are_inherit_only = (is_directory ? True : False);
2084 if(security_info_sent == 0) {
2085 DEBUG(0,("unpack_nt_permissions: no security info sent !\n"));
2090 * Validate the owner and group SID's.
2093 memset(&owner_sid, '\0', sizeof(owner_sid));
2094 memset(&grp_sid, '\0', sizeof(grp_sid));
2096 DEBUG(5,("unpack_nt_permissions: validating owner_sid.\n"));
2099 * Don't immediately fail if the owner sid cannot be validated.
2100 * This may be a group chown only set.
2103 if(!validate_unix_sid( &owner_sid, &owner_rid, psd->owner_sid))
2104 DEBUG(3,("unpack_nt_permissions: unable to validate owner sid.\n"));
2105 else if(security_info_sent & OWNER_SECURITY_INFORMATION)
2106 *puser = pdb_user_rid_to_uid(owner_rid);
2109 * Don't immediately fail if the group sid cannot be validated.
2110 * This may be an owner chown only set.
2113 if(!validate_unix_sid( &grp_sid, &grp_rid, psd->grp_sid))
2114 DEBUG(3,("unpack_nt_permissions: unable to validate group sid.\n"));
2115 else if(security_info_sent & GROUP_SECURITY_INFORMATION)
2116 *pgrp = pdb_user_rid_to_gid(grp_rid);
2119 * If no DACL then this is a chown only security descriptor.
2122 if(!(security_info_sent & DACL_SECURITY_INFORMATION) || !dacl) {
2128 * Now go through the DACL and ensure that
2129 * any owner/group sids match.
2132 for(i = 0; i < dacl->num_aces; i++) {
2134 SEC_ACE *psa = &dacl->ace_list[i];
2136 if((psa->type != SEC_ACE_TYPE_ACCESS_ALLOWED) &&
2137 (psa->type != SEC_ACE_TYPE_ACCESS_DENIED)) {
2138 DEBUG(3,("unpack_nt_permissions: unable to set anything but an ALLOW or DENY ACE.\n"));
2143 * Ignore or remove bits we don't care about on a directory ACE.
2147 if(psa->flags & SEC_ACE_FLAG_INHERIT_ONLY) {
2148 DEBUG(3,("unpack_nt_permissions: ignoring inherit only ACE.\n"));
2153 * At least one of the ACE entries wasn't inherit only.
2154 * Flag this so we know the returned mode is valid.
2157 all_aces_are_inherit_only = False;
2159 psa->flags &= ~(SEC_ACE_FLAG_OBJECT_INHERIT|SEC_ACE_FLAG_CONTAINER_INHERIT);
2162 if(psa->flags != 0) {
2163 DEBUG(1,("unpack_nt_permissions: unable to set ACE flags (%x).\n",
2164 (unsigned int)psa->flags));
2169 * The security mask may be UNIX_ACCESS_NONE which should map into
2170 * no permissions (we overload the WRITE_OWNER bit for this) or it
2171 * should be one of the ALL/EXECUTE/READ/WRITE bits. Arrange for this
2172 * to be so. Any other bits override the UNIX_ACCESS_NONE bit.
2175 psa->info.mask &= (GENERIC_ALL_ACCESS|GENERIC_EXECUTE_ACCESS|GENERIC_WRITE_ACCESS|
2176 GENERIC_READ_ACCESS|UNIX_ACCESS_NONE|FILE_ALL_ATTRIBUTES);
2178 if(psa->info.mask != UNIX_ACCESS_NONE)
2179 psa->info.mask &= ~UNIX_ACCESS_NONE;
2181 sid_copy(&ace_sid, &psa->sid);
2183 if(sid_equal(&ace_sid, &owner_sid)) {
2185 * Map the desired permissions into owner perms.
2188 if(psa->type == SEC_ACE_TYPE_ACCESS_ALLOWED)
2189 *pmode |= map_nt_perms( psa->info, S_IRUSR);
2191 *pmode &= ~(map_nt_perms( psa->info, S_IRUSR));
2193 } else if( sid_equal(&ace_sid, &grp_sid)) {
2195 * Map the desired permissions into group perms.
2198 if(psa->type == SEC_ACE_TYPE_ACCESS_ALLOWED)
2199 *pmode |= map_nt_perms( psa->info, S_IRGRP);
2201 *pmode &= ~(map_nt_perms( psa->info, S_IRGRP));
2203 } else if( sid_equal(&ace_sid, &global_sid_World)) {
2205 * Map the desired permissions into other perms.
2208 if(psa->type == SEC_ACE_TYPE_ACCESS_ALLOWED)
2209 *pmode |= map_nt_perms( psa->info, S_IROTH);
2211 *pmode &= ~(map_nt_perms( psa->info, S_IROTH));
2214 DEBUG(0,("unpack_nt_permissions: unknown SID used in ACL.\n"));
2219 if (is_directory && all_aces_are_inherit_only) {
2221 * Windows 2000 is doing one of these weird 'inherit acl'
2222 * traverses to conserve NTFS ACL resources. Just pretend
2223 * there was no DACL sent. JRA.
2226 DEBUG(10,("unpack_nt_permissions: Win2k inherit acl traverse. Ignoring DACL.\n"));
2227 free_sec_acl(&psd->dacl);
2233 /****************************************************************************
2234 Reply to set a security descriptor. Map to UNIX perms.
2235 ****************************************************************************/
2237 static int call_nt_transact_set_security_desc(connection_struct *conn,
2238 char *inbuf, char *outbuf, int length,
2239 int bufsize, char **ppsetup,
2240 char **ppparams, char **ppdata)
2242 uint32 total_parameter_count = IVAL(inbuf, smb_nts_TotalParameterCount);
2243 char *params= *ppparams;
2244 char *data = *ppdata;
2246 SEC_DESC *psd = NULL;
2247 uint32 total_data_count = (uint32)IVAL(inbuf, smb_nts_TotalDataCount);
2248 uid_t user = (uid_t)-1;
2249 gid_t grp = (gid_t)-1;
2251 SMB_STRUCT_STAT sbuf;
2252 files_struct *fsp = NULL;
2253 uint32 security_info_sent = 0;
2254 BOOL got_dacl = False;
2256 if(!lp_nt_acl_support())
2257 return(UNIXERROR(ERRDOS,ERRnoaccess));
2259 if(total_parameter_count < 8)
2260 return(ERROR(ERRDOS,ERRbadfunc));
2262 if((fsp = file_fsp(params,0)) == NULL)
2263 return(ERROR(ERRDOS,ERRbadfid));
2265 security_info_sent = IVAL(params,4);
2267 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n", fsp->fsp_name,
2268 (unsigned int)security_info_sent ));
2271 * Init the parse struct we will unmarshall from.
2274 prs_init(&pd, 0, 4, UNMARSHALL);
2277 * Setup the prs_struct to point at the memory we just
2281 prs_give_memory( &pd, data, total_data_count, False);
2284 * Finally, unmarshall from the data buffer.
2287 if(!sec_io_desc( "sd data", &psd, &pd, 1)) {
2288 free_sec_desc(&psd);
2289 DEBUG(0,("call_nt_transact_set_security_desc: Error in unmarshalling \
2290 security descriptor.\n"));
2292 * Return access denied for want of a better error message..
2294 return(UNIXERROR(ERRDOS,ERRnoaccess));
2298 * Unpack the user/group/world id's and permissions.
2301 if(!unpack_nt_permissions( &user, &grp, &perms, security_info_sent, psd, fsp->is_directory)) {
2302 free_sec_desc(&psd);
2303 return(UNIXERROR(ERRDOS,ERRnoaccess));
2306 if (psd->dacl != NULL)
2309 free_sec_desc(&psd);
2312 * Get the current state of the file.
2315 if(fsp->is_directory) {
2316 if(dos_stat(fsp->fsp_name, &sbuf) != 0) {
2317 return(UNIXERROR(ERRDOS,ERRnoaccess));
2323 if(fsp->fd_ptr == NULL)
2324 ret = conn->vfs_ops.stat(dos_to_unix(fsp->fsp_name,False), &sbuf);
2326 ret = conn->vfs_ops.fstat(fsp->fd_ptr->fd,&sbuf);
2329 return(UNIXERROR(ERRDOS,ERRnoaccess));
2334 * Do we need to chown ?
2337 if((user != (uid_t)-1 || grp != (uid_t)-1) && (sbuf.st_uid != user || sbuf.st_gid != grp)) {
2339 DEBUG(3,("call_nt_transact_set_security_desc: chown %s. uid = %u, gid = %u.\n",
2340 fsp->fsp_name, (unsigned int)user, (unsigned int)grp ));
2342 if(dos_chown( fsp->fsp_name, user, grp) == -1) {
2343 DEBUG(3,("call_nt_transact_set_security_desc: chown %s, %u, %u failed. Error = %s.\n",
2344 fsp->fsp_name, (unsigned int)user, (unsigned int)grp, strerror(errno) ));
2345 return(UNIXERROR(ERRDOS,ERRnoaccess));
2349 * Recheck the current state of the file, which may have changed.
2350 * (suid/sgid bits, for instance)
2353 if(fsp->is_directory) {
2354 if(dos_stat(fsp->fsp_name, &sbuf) != 0) {
2355 return(UNIXERROR(ERRDOS,ERRnoaccess));
2361 if(fsp->fd_ptr == NULL)
2362 ret = conn->vfs_ops.stat(dos_to_unix(fsp->fsp_name,False), &sbuf);
2364 ret = conn->vfs_ops.fstat(fsp->fd_ptr->fd,&sbuf);
2367 return(UNIXERROR(ERRDOS,ERRnoaccess));
2372 * Only change security if we got a DACL.
2375 if((security_info_sent & DACL_SECURITY_INFORMATION) && got_dacl) {
2378 * Check to see if we need to change anything.
2379 * Enforce limits on modified bits *only*. Don't enforce masks
2380 * on bits not changed by the user.
2383 if(fsp->is_directory) {
2385 perms &= (lp_dir_security_mask(SNUM(conn)) | sbuf.st_mode);
2386 perms |= (lp_force_dir_security_mode(SNUM(conn)) & ( perms ^ sbuf.st_mode ));
2390 perms &= (lp_security_mask(SNUM(conn)) | sbuf.st_mode);
2391 perms |= (lp_force_security_mode(SNUM(conn)) & ( perms ^ sbuf.st_mode ));
2396 * Preserve special bits.
2399 perms |= (sbuf.st_mode & ~0777);
2402 * Do we need to chmod ?
2405 if(sbuf.st_mode != perms) {
2407 DEBUG(3,("call_nt_transact_set_security_desc: chmod %s. perms = 0%o.\n",
2408 fsp->fsp_name, (unsigned int)perms ));
2410 if(conn->vfs_ops.chmod(dos_to_unix(fsp->fsp_name, False), perms) == -1) {
2411 DEBUG(3,("call_nt_transact_set_security_desc: chmod %s, 0%o failed. Error = %s.\n",
2412 fsp->fsp_name, (unsigned int)perms, strerror(errno) ));
2413 return(UNIXERROR(ERRDOS,ERRnoaccess));
2418 send_nt_replies(inbuf, outbuf, bufsize, 0, NULL, 0, NULL, 0);
2422 /****************************************************************************
2423 Reply to IOCTL - not implemented - no plans.
2424 ****************************************************************************/
2425 static int call_nt_transact_ioctl(connection_struct *conn,
2426 char *inbuf, char *outbuf, int length,
2428 char **ppsetup, char **ppparams, char **ppdata)
2430 static BOOL logged_message = False;
2432 if(!logged_message) {
2433 DEBUG(0,("call_nt_transact_ioctl: Currently not implemented.\n"));
2434 logged_message = True; /* Only print this once... */
2436 return(ERROR(ERRSRV,ERRnosupport));
2439 /****************************************************************************
2440 Reply to a SMBNTtrans.
2441 ****************************************************************************/
2442 int reply_nttrans(connection_struct *conn,
2443 char *inbuf,char *outbuf,int length,int bufsize)
2446 #if 0 /* Not used. */
2447 uint16 max_setup_count = CVAL(inbuf, smb_nt_MaxSetupCount);
2448 uint32 max_parameter_count = IVAL(inbuf, smb_nt_MaxParameterCount);
2449 uint32 max_data_count = IVAL(inbuf,smb_nt_MaxDataCount);
2450 #endif /* Not used. */
2451 uint32 total_parameter_count = IVAL(inbuf, smb_nt_TotalParameterCount);
2452 uint32 total_data_count = IVAL(inbuf, smb_nt_TotalDataCount);
2453 uint32 parameter_count = IVAL(inbuf,smb_nt_ParameterCount);
2454 uint32 parameter_offset = IVAL(inbuf,smb_nt_ParameterOffset);
2455 uint32 data_count = IVAL(inbuf,smb_nt_DataCount);
2456 uint32 data_offset = IVAL(inbuf,smb_nt_DataOffset);
2457 uint16 setup_count = 2*CVAL(inbuf,smb_nt_SetupCount); /* setup count is in *words* */
2458 uint16 function_code = SVAL( inbuf, smb_nt_Function);
2459 char *params = NULL, *data = NULL, *setup = NULL;
2460 uint32 num_params_sofar, num_data_sofar;
2462 if(global_oplock_break && (function_code == NT_TRANSACT_CREATE)) {
2464 * Queue this open message as we are the process of an oplock break.
2467 DEBUG(2,("reply_nttrans: queueing message NT_TRANSACT_CREATE \
2468 due to being in oplock break state.\n" ));
2470 push_oplock_pending_smb_message( inbuf, length);
2474 outsize = set_message(outbuf,0,0,True);
2477 * All nttrans messages we handle have smb_wct == 19 + setup_count.
2478 * Ensure this is so as a sanity check.
2481 if(CVAL(inbuf, smb_wct) != 19 + (setup_count/2)) {
2482 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2483 CVAL(inbuf, smb_wct), 19 + (setup_count/2)));
2484 return(ERROR(ERRSRV,ERRerror));
2487 /* Allocate the space for the setup, the maximum needed parameters and data */
2490 setup = (char *)malloc(setup_count);
2491 if (total_parameter_count > 0)
2492 params = (char *)malloc(total_parameter_count);
2493 if (total_data_count > 0)
2494 data = (char *)malloc(total_data_count);
2496 if ((total_parameter_count && !params) || (total_data_count && !data) ||
2497 (setup_count && !setup)) {
2498 DEBUG(0,("reply_nttrans : Out of memory\n"));
2499 return(ERROR(ERRDOS,ERRnomem));
2502 /* Copy the param and data bytes sent with this request into
2503 the params buffer */
2504 num_params_sofar = parameter_count;
2505 num_data_sofar = data_count;
2507 if (parameter_count > total_parameter_count || data_count > total_data_count)
2508 exit_server("reply_nttrans: invalid sizes in packet.\n");
2511 memcpy( setup, &inbuf[smb_nt_SetupStart], setup_count);
2512 DEBUG(10,("reply_nttrans: setup_count = %d\n", setup_count));
2513 dump_data(10, setup, setup_count);
2516 memcpy( params, smb_base(inbuf) + parameter_offset, parameter_count);
2517 DEBUG(10,("reply_nttrans: parameter_count = %d\n", parameter_count));
2518 dump_data(10, params, parameter_count);
2521 memcpy( data, smb_base(inbuf) + data_offset, data_count);
2522 DEBUG(10,("reply_nttrans: data_count = %d\n",data_count));
2523 dump_data(10, data, data_count);
2526 if(num_data_sofar < total_data_count || num_params_sofar < total_parameter_count) {
2527 /* We need to send an interim response then receive the rest
2528 of the parameter/data bytes */
2529 outsize = set_message(outbuf,0,0,True);
2530 send_smb(Client,outbuf);
2532 while( num_data_sofar < total_data_count || num_params_sofar < total_parameter_count) {
2535 ret = receive_next_smb(inbuf,bufsize,SMB_SECONDARY_WAIT);
2537 if((ret && (CVAL(inbuf, smb_com) != SMBnttranss)) || !ret) {
2538 outsize = set_message(outbuf,0,0,True);
2540 DEBUG(0,("reply_nttrans: Invalid secondary nttrans packet\n"));
2542 DEBUG(0,("reply_nttrans: %s in getting secondary nttrans response.\n",
2543 (smb_read_error == READ_ERROR) ? "error" : "timeout" ));
2551 return(ERROR(ERRSRV,ERRerror));
2554 /* Revise total_params and total_data in case they have changed downwards */
2555 total_parameter_count = IVAL(inbuf, smb_nts_TotalParameterCount);
2556 total_data_count = IVAL(inbuf, smb_nts_TotalDataCount);
2557 num_params_sofar += (parameter_count = IVAL(inbuf,smb_nts_ParameterCount));
2558 num_data_sofar += ( data_count = IVAL(inbuf, smb_nts_DataCount));
2559 if (num_params_sofar > total_parameter_count || num_data_sofar > total_data_count)
2560 exit_server("reply_nttrans2: data overflow in secondary nttrans packet\n");
2562 memcpy( ¶ms[ IVAL(inbuf, smb_nts_ParameterDisplacement)],
2563 smb_base(inbuf) + IVAL(inbuf, smb_nts_ParameterOffset), parameter_count);
2564 memcpy( &data[IVAL(inbuf, smb_nts_DataDisplacement)],
2565 smb_base(inbuf)+ IVAL(inbuf, smb_nts_DataOffset), data_count);
2569 if (Protocol >= PROTOCOL_NT1) {
2570 uint16 flg2 = SVAL(outbuf,smb_flg2);
2571 SSVAL(outbuf,smb_flg2,flg2 | 0x40); /* IS_LONG_NAME */
2574 /* Now we must call the relevant NT_TRANS function */
2575 switch(function_code) {
2576 case NT_TRANSACT_CREATE:
2577 outsize = call_nt_transact_create(conn, inbuf, outbuf, length, bufsize,
2578 &setup, ¶ms, &data);
2580 case NT_TRANSACT_IOCTL:
2581 outsize = call_nt_transact_ioctl(conn,
2582 inbuf, outbuf, length, bufsize,
2583 &setup, ¶ms, &data);
2585 case NT_TRANSACT_SET_SECURITY_DESC:
2586 outsize = call_nt_transact_set_security_desc(conn, inbuf, outbuf,
2588 &setup, ¶ms, &data);
2590 case NT_TRANSACT_NOTIFY_CHANGE:
2591 outsize = call_nt_transact_notify_change(conn, inbuf, outbuf,
2593 &setup, ¶ms, &data);
2595 case NT_TRANSACT_RENAME:
2596 outsize = call_nt_transact_rename(conn, inbuf, outbuf, length,
2598 &setup, ¶ms, &data);
2601 case NT_TRANSACT_QUERY_SECURITY_DESC:
2602 outsize = call_nt_transact_query_security_desc(conn, inbuf, outbuf,
2604 &setup, ¶ms, &data);
2607 /* Error in request */
2608 DEBUG(0,("reply_nttrans: Unknown request %d in nttrans call\n", function_code));
2615 return (ERROR(ERRSRV,ERRerror));
2618 /* As we do not know how many data packets will need to be
2619 returned here the various call_nt_transact_xxxx calls
2620 must send their own. Thus a call_nt_transact_xxxx routine only
2621 returns a value other than -1 when it wants to send
2631 return outsize; /* If a correct response was needed the call_nt_transact_xxxx
2632 calls have already sent it. If outsize != -1 then it is
2633 returning an error packet. */