272c3966ba3f468de865c2b9a8b5037d435b0389
[sfrench/samba-autobuild/.git] / source / smbd / reply.c
1 /* 
2    Unix SMB/CIFS implementation.
3    Main SMB reply routines
4    Copyright (C) Andrew Tridgell 1992-1998
5    Copyright (C) Andrew Bartlett      2001
6    Copyright (C) Jeremy Allison 1992-2007.
7
8    This program is free software; you can redistribute it and/or modify
9    it under the terms of the GNU General Public License as published by
10    the Free Software Foundation; either version 2 of the License, or
11    (at your option) any later version.
12    
13    This program is distributed in the hope that it will be useful,
14    but WITHOUT ANY WARRANTY; without even the implied warranty of
15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16    GNU General Public License for more details.
17    
18    You should have received a copy of the GNU General Public License
19    along with this program; if not, write to the Free Software
20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 */
22 /*
23    This file handles most of the reply_ calls that the server
24    makes to handle specific protocols
25 */
26
27 #include "includes.h"
28
29 /* look in server.c for some explanation of these variables */
30 extern enum protocol_types Protocol;
31 extern int max_send;
32 extern int max_recv;
33 unsigned int smb_echo_count = 0;
34 extern uint32 global_client_caps;
35
36 extern struct current_user current_user;
37 extern BOOL global_encrypted_passwords_negotiated;
38
39 /****************************************************************************
40  Ensure we check the path in *exactly* the same way as W2K for a findfirst/findnext
41  path or anything including wildcards.
42  We're assuming here that '/' is not the second byte in any multibyte char
43  set (a safe assumption). '\\' *may* be the second byte in a multibyte char
44  set.
45 ****************************************************************************/
46
47 /* Custom version for processing POSIX paths. */
48 #define IS_PATH_SEP(c,posix_only) ((c) == '/' || (!(posix_only) && (c) == '\\'))
49
50 NTSTATUS check_path_syntax_internal(pstring destname,
51                                     const pstring srcname,
52                                     BOOL posix_path,
53                                     BOOL *p_last_component_contains_wcard)
54 {
55         char *d = destname;
56         const char *s = srcname;
57         NTSTATUS ret = NT_STATUS_OK;
58         BOOL start_of_name_component = True;
59
60         *p_last_component_contains_wcard = False;
61
62         while (*s) {
63                 if (IS_PATH_SEP(*s,posix_path)) {
64                         /*
65                          * Safe to assume is not the second part of a mb char
66                          * as this is handled below.
67                          */
68                         /* Eat multiple '/' or '\\' */
69                         while (IS_PATH_SEP(*s,posix_path)) {
70                                 s++;
71                         }
72                         if ((d != destname) && (*s != '\0')) {
73                                 /* We only care about non-leading or trailing '/' or '\\' */
74                                 *d++ = '/';
75                         }
76
77                         start_of_name_component = True;
78                         /* New component. */
79                         *p_last_component_contains_wcard = False;
80                         continue;
81                 }
82
83                 if (start_of_name_component) {
84                         if ((s[0] == '.') && (s[1] == '.') && (IS_PATH_SEP(s[2],posix_path) || s[2] == '\0')) {
85                                 /* Uh oh - "/../" or "\\..\\"  or "/..\0" or "\\..\0" ! */
86
87                                 /*
88                                  * No mb char starts with '.' so we're safe checking the directory separator here.
89                                  */
90
91                                 /* If  we just added a '/' - delete it */
92                                 if ((d > destname) && (*(d-1) == '/')) {
93                                         *(d-1) = '\0';
94                                         d--;
95                                 }
96
97                                 /* Are we at the start ? Can't go back further if so. */
98                                 if (d <= destname) {
99                                         ret = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
100                                         break;
101                                 }
102                                 /* Go back one level... */
103                                 /* We know this is safe as '/' cannot be part of a mb sequence. */
104                                 /* NOTE - if this assumption is invalid we are not in good shape... */
105                                 /* Decrement d first as d points to the *next* char to write into. */
106                                 for (d--; d > destname; d--) {
107                                         if (*d == '/')
108                                                 break;
109                                 }
110                                 s += 2; /* Else go past the .. */
111                                 /* We're still at the start of a name component, just the previous one. */
112                                 continue;
113
114                         } else if ((s[0] == '.') && ((s[1] == '\0') || IS_PATH_SEP(s[1],posix_path))) {
115                                 if (posix_path) {
116                                         /* Eat the '.' */
117                                         s++;
118                                         continue;
119                                 }
120                         }
121
122                 }
123
124                 if (!(*s & 0x80)) {
125                         if (!posix_path) {
126                                 if (*s <= 0x1f) {
127                                         return NT_STATUS_OBJECT_NAME_INVALID;
128                                 }
129                                 switch (*s) {
130                                         case '*':
131                                         case '?':
132                                         case '<':
133                                         case '>':
134                                         case '"':
135                                                 *p_last_component_contains_wcard = True;
136                                                 break;
137                                         default:
138                                                 break;
139                                 }
140                         }
141                         *d++ = *s++;
142                 } else {
143                         size_t siz;
144                         /* Get the size of the next MB character. */
145                         next_codepoint(s,&siz);
146                         switch(siz) {
147                                 case 5:
148                                         *d++ = *s++;
149                                         /*fall through*/
150                                 case 4:
151                                         *d++ = *s++;
152                                         /*fall through*/
153                                 case 3:
154                                         *d++ = *s++;
155                                         /*fall through*/
156                                 case 2:
157                                         *d++ = *s++;
158                                         /*fall through*/
159                                 case 1:
160                                         *d++ = *s++;
161                                         break;
162                                 default:
163                                         DEBUG(0,("check_path_syntax_internal: character length assumptions invalid !\n"));
164                                         *d = '\0';
165                                         return NT_STATUS_INVALID_PARAMETER;
166                         }
167                 }
168                 start_of_name_component = False;
169         }
170
171         *d = '\0';
172         return ret;
173 }
174
175 /****************************************************************************
176  Ensure we check the path in *exactly* the same way as W2K for regular pathnames.
177  No wildcards allowed.
178 ****************************************************************************/
179
180 NTSTATUS check_path_syntax(pstring destname, const pstring srcname)
181 {
182         BOOL ignore;
183         return check_path_syntax_internal(destname, srcname, False, &ignore);
184 }
185
186 /****************************************************************************
187  Ensure we check the path in *exactly* the same way as W2K for regular pathnames.
188  Wildcards allowed - p_contains_wcard returns true if the last component contained
189  a wildcard.
190 ****************************************************************************/
191
192 NTSTATUS check_path_syntax_wcard(pstring destname, const pstring srcname, BOOL *p_contains_wcard)
193 {
194         return check_path_syntax_internal(destname, srcname, False, p_contains_wcard);
195 }
196
197 /****************************************************************************
198  Check the path for a POSIX client.
199  We're assuming here that '/' is not the second byte in any multibyte char
200  set (a safe assumption).
201 ****************************************************************************/
202
203 NTSTATUS check_path_syntax_posix(pstring destname, const pstring srcname)
204 {
205         BOOL ignore;
206         return check_path_syntax_internal(destname, srcname, True, &ignore);
207 }
208
209 /****************************************************************************
210  Pull a string and check the path allowing a wilcard - provide for error return.
211 ****************************************************************************/
212
213 size_t srvstr_get_path_wcard(char *inbuf, char *dest, const char *src, size_t dest_len, size_t src_len, int flags,
214                                 NTSTATUS *err, BOOL *contains_wcard)
215 {
216         pstring tmppath;
217         char *tmppath_ptr = tmppath;
218         size_t ret;
219 #ifdef DEVELOPER
220         SMB_ASSERT(dest_len == sizeof(pstring));
221 #endif
222
223         if (src_len == 0) {
224                 ret = srvstr_pull_buf( inbuf, tmppath_ptr, src, dest_len, flags);
225         } else {
226                 ret = srvstr_pull( inbuf, tmppath_ptr, src, dest_len, src_len, flags);
227         }
228
229         *contains_wcard = False;
230
231         if (SVAL(inbuf,smb_flg2) & FLAGS2_DFS_PATHNAMES) {
232                 /* 
233                  * For a DFS path the function parse_dfs_path()
234                  * will do the path processing, just make a copy.
235                  */
236                 pstrcpy(dest, tmppath);
237                 *err = NT_STATUS_OK;
238                 return ret;
239         }
240
241         if (lp_posix_pathnames()) {
242                 *err = check_path_syntax_posix(dest, tmppath);
243         } else {
244                 *err = check_path_syntax_wcard(dest, tmppath, contains_wcard);
245         }
246
247         return ret;
248 }
249
250 /****************************************************************************
251  Pull a string and check the path - provide for error return.
252 ****************************************************************************/
253
254 size_t srvstr_get_path(char *inbuf, char *dest, const char *src, size_t dest_len, size_t src_len, int flags, NTSTATUS *err)
255 {
256         pstring tmppath;
257         char *tmppath_ptr = tmppath;
258         size_t ret;
259 #ifdef DEVELOPER
260         SMB_ASSERT(dest_len == sizeof(pstring));
261 #endif
262
263         if (src_len == 0) {
264                 ret = srvstr_pull_buf( inbuf, tmppath_ptr, src, dest_len, flags);
265         } else {
266                 ret = srvstr_pull( inbuf, tmppath_ptr, src, dest_len, src_len, flags);
267         }
268
269         if (SVAL(inbuf,smb_flg2) & FLAGS2_DFS_PATHNAMES) {
270                 /* 
271                  * For a DFS path the function parse_dfs_path()
272                  * will do the path processing, just make a copy.
273                  */
274                 pstrcpy(dest, tmppath);
275                 *err = NT_STATUS_OK;
276                 return ret;
277         }
278
279         if (lp_posix_pathnames()) {
280                 *err = check_path_syntax_posix(dest, tmppath);
281         } else {
282                 *err = check_path_syntax(dest, tmppath);
283         }
284
285         return ret;
286 }
287
288 /****************************************************************************
289  Reply to a special message.
290 ****************************************************************************/
291
292 int reply_special(char *inbuf,char *outbuf)
293 {
294         int outsize = 4;
295         int msg_type = CVAL(inbuf,0);
296         int msg_flags = CVAL(inbuf,1);
297         fstring name1,name2;
298         char name_type = 0;
299         
300         static BOOL already_got_session = False;
301
302         *name1 = *name2 = 0;
303         
304         memset(outbuf,'\0',smb_size);
305
306         smb_setlen(inbuf,outbuf,0);
307         
308         switch (msg_type) {
309         case 0x81: /* session request */
310                 
311                 if (already_got_session) {
312                         exit_server_cleanly("multiple session request not permitted");
313                 }
314                 
315                 SCVAL(outbuf,0,0x82);
316                 SCVAL(outbuf,3,0);
317                 if (name_len(inbuf+4) > 50 || 
318                     name_len(inbuf+4 + name_len(inbuf + 4)) > 50) {
319                         DEBUG(0,("Invalid name length in session request\n"));
320                         return(0);
321                 }
322                 name_extract(inbuf,4,name1);
323                 name_type = name_extract(inbuf,4 + name_len(inbuf + 4),name2);
324                 DEBUG(2,("netbios connect: name1=%s name2=%s\n",
325                          name1,name2));      
326
327                 set_local_machine_name(name1, True);
328                 set_remote_machine_name(name2, True);
329
330                 DEBUG(2,("netbios connect: local=%s remote=%s, name type = %x\n",
331                          get_local_machine_name(), get_remote_machine_name(),
332                          name_type));
333
334                 if (name_type == 'R') {
335                         /* We are being asked for a pathworks session --- 
336                            no thanks! */
337                         SCVAL(outbuf, 0,0x83);
338                         break;
339                 }
340
341                 /* only add the client's machine name to the list
342                    of possibly valid usernames if we are operating
343                    in share mode security */
344                 if (lp_security() == SEC_SHARE) {
345                         add_session_user(get_remote_machine_name());
346                 }
347
348                 reload_services(True);
349                 reopen_logs();
350
351                 already_got_session = True;
352                 break;
353                 
354         case 0x89: /* session keepalive request 
355                       (some old clients produce this?) */
356                 SCVAL(outbuf,0,SMBkeepalive);
357                 SCVAL(outbuf,3,0);
358                 break;
359                 
360         case 0x82: /* positive session response */
361         case 0x83: /* negative session response */
362         case 0x84: /* retarget session response */
363                 DEBUG(0,("Unexpected session response\n"));
364                 break;
365                 
366         case SMBkeepalive: /* session keepalive */
367         default:
368                 return(0);
369         }
370         
371         DEBUG(5,("init msg_type=0x%x msg_flags=0x%x\n",
372                     msg_type, msg_flags));
373         
374         return(outsize);
375 }
376
377 /****************************************************************************
378  Reply to a tcon.
379  conn POINTER CAN BE NULL HERE !
380 ****************************************************************************/
381
382 int reply_tcon(connection_struct *conn,
383                char *inbuf,char *outbuf, int dum_size, int dum_buffsize)
384 {
385         const char *service;
386         pstring service_buf;
387         pstring password;
388         pstring dev;
389         int outsize = 0;
390         uint16 vuid = SVAL(inbuf,smb_uid);
391         int pwlen=0;
392         NTSTATUS nt_status;
393         char *p;
394         DATA_BLOB password_blob;
395         
396         START_PROFILE(SMBtcon);
397
398         *service_buf = *password = *dev = 0;
399
400         p = smb_buf(inbuf)+1;
401         p += srvstr_pull_buf(inbuf, service_buf, p, sizeof(service_buf), STR_TERMINATE) + 1;
402         pwlen = srvstr_pull_buf(inbuf, password, p, sizeof(password), STR_TERMINATE) + 1;
403         p += pwlen;
404         p += srvstr_pull_buf(inbuf, dev, p, sizeof(dev), STR_TERMINATE) + 1;
405
406         p = strrchr_m(service_buf,'\\');
407         if (p) {
408                 service = p+1;
409         } else {
410                 service = service_buf;
411         }
412
413         password_blob = data_blob(password, pwlen+1);
414
415         conn = make_connection(service,password_blob,dev,vuid,&nt_status);
416
417         data_blob_clear_free(&password_blob);
418   
419         if (!conn) {
420                 END_PROFILE(SMBtcon);
421                 return ERROR_NT(nt_status);
422         }
423   
424         outsize = set_message(inbuf,outbuf,2,0,True);
425         SSVAL(outbuf,smb_vwv0,max_recv);
426         SSVAL(outbuf,smb_vwv1,conn->cnum);
427         SSVAL(outbuf,smb_tid,conn->cnum);
428   
429         DEBUG(3,("tcon service=%s cnum=%d\n", 
430                  service, conn->cnum));
431   
432         END_PROFILE(SMBtcon);
433         return(outsize);
434 }
435
436 /****************************************************************************
437  Reply to a tcon and X.
438  conn POINTER CAN BE NULL HERE !
439 ****************************************************************************/
440
441 int reply_tcon_and_X(connection_struct *conn, char *inbuf,char *outbuf,int length,int bufsize)
442 {
443         fstring service;
444         DATA_BLOB password;
445
446         /* what the cleint thinks the device is */
447         fstring client_devicetype;
448         /* what the server tells the client the share represents */
449         const char *server_devicetype;
450         NTSTATUS nt_status;
451         uint16 vuid = SVAL(inbuf,smb_uid);
452         int passlen = SVAL(inbuf,smb_vwv3);
453         pstring path;
454         char *p, *q;
455         uint16 tcon_flags = SVAL(inbuf,smb_vwv2);
456         
457         START_PROFILE(SMBtconX);        
458
459         *service = *client_devicetype = 0;
460
461         /* we might have to close an old one */
462         if ((SVAL(inbuf,smb_vwv2) & 0x1) && conn) {
463                 close_cnum(conn,vuid);
464         }
465
466         if (passlen > MAX_PASS_LEN) {
467                 return ERROR_DOS(ERRDOS,ERRbuftoosmall);
468         }
469  
470         if (global_encrypted_passwords_negotiated) {
471                 password = data_blob(smb_buf(inbuf),passlen);
472                 if (lp_security() == SEC_SHARE) {
473                         /*
474                          * Security = share always has a pad byte
475                          * after the password.
476                          */
477                         p = smb_buf(inbuf) + passlen + 1;
478                 } else {
479                         p = smb_buf(inbuf) + passlen;
480                 }
481         } else {
482                 password = data_blob(smb_buf(inbuf),passlen+1);
483                 /* Ensure correct termination */
484                 password.data[passlen]=0;
485                 p = smb_buf(inbuf) + passlen + 1;
486         }
487
488         p += srvstr_pull_buf(inbuf, path, p, sizeof(path), STR_TERMINATE);
489
490         /*
491          * the service name can be either: \\server\share
492          * or share directly like on the DELL PowerVault 705
493          */
494         if (*path=='\\') {      
495                 q = strchr_m(path+2,'\\');
496                 if (!q) {
497                         END_PROFILE(SMBtconX);
498                         return(ERROR_DOS(ERRDOS,ERRnosuchshare));
499                 }
500                 fstrcpy(service,q+1);
501         }
502         else
503                 fstrcpy(service,path);
504                 
505         p += srvstr_pull(inbuf, client_devicetype, p, sizeof(client_devicetype), 6, STR_ASCII);
506
507         DEBUG(4,("Client requested device type [%s] for share [%s]\n", client_devicetype, service));
508
509         conn = make_connection(service,password,client_devicetype,vuid,&nt_status);
510         
511         data_blob_clear_free(&password);
512
513         if (!conn) {
514                 END_PROFILE(SMBtconX);
515                 return ERROR_NT(nt_status);
516         }
517
518         if ( IS_IPC(conn) )
519                 server_devicetype = "IPC";
520         else if ( IS_PRINT(conn) )
521                 server_devicetype = "LPT1:";
522         else 
523                 server_devicetype = "A:";
524
525         if (Protocol < PROTOCOL_NT1) {
526                 set_message(inbuf,outbuf,2,0,True);
527                 p = smb_buf(outbuf);
528                 p += srvstr_push(outbuf, p, server_devicetype, -1, 
529                                  STR_TERMINATE|STR_ASCII);
530                 set_message_end(inbuf,outbuf,p);
531         } else {
532                 /* NT sets the fstype of IPC$ to the null string */
533                 const char *fstype = IS_IPC(conn) ? "" : lp_fstype(SNUM(conn));
534                 
535                 if (tcon_flags & TCONX_FLAG_EXTENDED_RESPONSE) {
536                         /* Return permissions. */
537                         uint32 perm1 = 0;
538                         uint32 perm2 = 0;
539
540                         set_message(inbuf,outbuf,7,0,True);
541
542                         if (IS_IPC(conn)) {
543                                 perm1 = FILE_ALL_ACCESS;
544                                 perm2 = FILE_ALL_ACCESS;
545                         } else {
546                                 perm1 = CAN_WRITE(conn) ?
547                                                 SHARE_ALL_ACCESS :
548                                                 SHARE_READ_ONLY;
549                         }
550
551                         SIVAL(outbuf, smb_vwv3, perm1);
552                         SIVAL(outbuf, smb_vwv5, perm2);
553                 } else {
554                         set_message(inbuf,outbuf,3,0,True);
555                 }
556
557                 p = smb_buf(outbuf);
558                 p += srvstr_push(outbuf, p, server_devicetype, -1, 
559                                  STR_TERMINATE|STR_ASCII);
560                 p += srvstr_push(outbuf, p, fstype, -1, 
561                                  STR_TERMINATE);
562                 
563                 set_message_end(inbuf,outbuf,p);
564                 
565                 /* what does setting this bit do? It is set by NT4 and
566                    may affect the ability to autorun mounted cdroms */
567                 SSVAL(outbuf, smb_vwv2, SMB_SUPPORT_SEARCH_BITS|
568                                 (lp_csc_policy(SNUM(conn)) << 2));
569                 
570                 init_dfsroot(conn, inbuf, outbuf);
571         }
572
573   
574         DEBUG(3,("tconX service=%s \n",
575                  service));
576   
577         /* set the incoming and outgoing tid to the just created one */
578         SSVAL(inbuf,smb_tid,conn->cnum);
579         SSVAL(outbuf,smb_tid,conn->cnum);
580
581         END_PROFILE(SMBtconX);
582         return chain_reply(inbuf,outbuf,length,bufsize);
583 }
584
585 /****************************************************************************
586  Reply to an unknown type.
587 ****************************************************************************/
588
589 int reply_unknown(char *inbuf,char *outbuf)
590 {
591         int type;
592         type = CVAL(inbuf,smb_com);
593   
594         DEBUG(0,("unknown command type (%s): type=%d (0x%X)\n",
595                  smb_fn_name(type), type, type));
596   
597         return(ERROR_DOS(ERRSRV,ERRunknownsmb));
598 }
599
600 /****************************************************************************
601  Reply to an ioctl.
602  conn POINTER CAN BE NULL HERE !
603 ****************************************************************************/
604
605 int reply_ioctl(connection_struct *conn,
606                 char *inbuf,char *outbuf, int dum_size, int dum_buffsize)
607 {
608         uint16 device     = SVAL(inbuf,smb_vwv1);
609         uint16 function   = SVAL(inbuf,smb_vwv2);
610         uint32 ioctl_code = (device << 16) + function;
611         int replysize, outsize;
612         char *p;
613         START_PROFILE(SMBioctl);
614
615         DEBUG(4, ("Received IOCTL (code 0x%x)\n", ioctl_code));
616
617         switch (ioctl_code) {
618             case IOCTL_QUERY_JOB_INFO:
619                 replysize = 32;
620                 break;
621             default:
622                 END_PROFILE(SMBioctl);
623                 return(ERROR_DOS(ERRSRV,ERRnosupport));
624         }
625
626         outsize = set_message(inbuf,outbuf,8,replysize+1,True);
627         SSVAL(outbuf,smb_vwv1,replysize); /* Total data bytes returned */
628         SSVAL(outbuf,smb_vwv5,replysize); /* Data bytes this buffer */
629         SSVAL(outbuf,smb_vwv6,52);        /* Offset to data */
630         p = smb_buf(outbuf) + 1;          /* Allow for alignment */
631
632         switch (ioctl_code) {
633                 case IOCTL_QUERY_JOB_INFO:                  
634                 {
635                         files_struct *fsp = file_fsp(inbuf,smb_vwv0);
636                         if (!fsp) {
637                                 END_PROFILE(SMBioctl);
638                                 return(UNIXERROR(ERRDOS,ERRbadfid));
639                         }
640                         SSVAL(p,0,fsp->rap_print_jobid);             /* Job number */
641                         srvstr_push(outbuf, p+2, global_myname(), 15, STR_TERMINATE|STR_ASCII);
642                         if (conn) {
643                                 srvstr_push(outbuf, p+18, lp_servicename(SNUM(conn)), 13, STR_TERMINATE|STR_ASCII);
644                         }
645                         break;
646                 }
647         }
648
649         END_PROFILE(SMBioctl);
650         return outsize;
651 }
652
653 /****************************************************************************
654  Strange checkpath NTSTATUS mapping.
655 ****************************************************************************/
656
657 static NTSTATUS map_checkpath_error(const char *inbuf, NTSTATUS status)
658 {
659         /* Strange DOS error code semantics only for checkpath... */
660         if (!(SVAL(inbuf,smb_flg2) & FLAGS2_32_BIT_ERROR_CODES)) {
661                 if (NT_STATUS_EQUAL(NT_STATUS_OBJECT_NAME_INVALID,status)) {
662                         /* We need to map to ERRbadpath */
663                         return NT_STATUS_OBJECT_PATH_NOT_FOUND;
664                 }
665         }
666         return status;
667 }
668         
669 /****************************************************************************
670  Reply to a checkpath.
671 ****************************************************************************/
672
673 int reply_checkpath(connection_struct *conn, char *inbuf,char *outbuf, int dum_size, int dum_buffsize)
674 {
675         int outsize = 0;
676         pstring name;
677         SMB_STRUCT_STAT sbuf;
678         NTSTATUS status;
679
680         START_PROFILE(SMBcheckpath);
681
682         srvstr_get_path(inbuf, name, smb_buf(inbuf) + 1, sizeof(name), 0, STR_TERMINATE, &status);
683         if (!NT_STATUS_IS_OK(status)) {
684                 END_PROFILE(SMBcheckpath);
685                 status = map_checkpath_error(inbuf, status);
686                 return ERROR_NT(status);
687         }
688
689         status = resolve_dfspath(conn, SVAL(inbuf,smb_flg2) & FLAGS2_DFS_PATHNAMES, name);
690         if (!NT_STATUS_IS_OK(status)) {
691                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
692                         END_PROFILE(SMBcheckpath);
693                         return ERROR_BOTH(NT_STATUS_PATH_NOT_COVERED, ERRSRV, ERRbadpath);
694                 }
695                 goto path_err;
696         }
697
698         DEBUG(3,("reply_checkpath %s mode=%d\n", name, (int)SVAL(inbuf,smb_vwv0)));
699
700         status = unix_convert(conn, name, False, NULL, &sbuf);
701         if (!NT_STATUS_IS_OK(status)) {
702                 goto path_err;
703         }
704
705         status = check_name(conn, name);
706         if (!NT_STATUS_IS_OK(status)) {
707                 DEBUG(3,("reply_checkpath: check_name of %s failed (%s)\n",name,nt_errstr(status)));
708                 goto path_err;
709         }
710
711         if (!VALID_STAT(sbuf) && (SMB_VFS_STAT(conn,name,&sbuf) != 0)) {
712                 DEBUG(3,("reply_checkpath: stat of %s failed (%s)\n",name,strerror(errno)));
713                 status = map_nt_error_from_unix(errno);
714                 goto path_err;
715         }
716
717         if (!S_ISDIR(sbuf.st_mode)) {
718                 END_PROFILE(SMBcheckpath);
719                 return ERROR_BOTH(NT_STATUS_NOT_A_DIRECTORY,ERRDOS,ERRbadpath);
720         }
721
722         outsize = set_message(inbuf,outbuf,0,0,False);
723
724         END_PROFILE(SMBcheckpath);
725         return outsize;
726
727   path_err:
728
729         END_PROFILE(SMBcheckpath);
730
731         /* We special case this - as when a Windows machine
732                 is parsing a path is steps through the components
733                 one at a time - if a component fails it expects
734                 ERRbadpath, not ERRbadfile.
735         */
736         status = map_checkpath_error(inbuf, status);
737         if(NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
738                 /*
739                  * Windows returns different error codes if
740                  * the parent directory is valid but not the
741                  * last component - it returns NT_STATUS_OBJECT_NAME_NOT_FOUND
742                  * for that case and NT_STATUS_OBJECT_PATH_NOT_FOUND
743                  * if the path is invalid.
744                  */
745                 return ERROR_BOTH(NT_STATUS_OBJECT_NAME_NOT_FOUND,ERRDOS,ERRbadpath);
746         }
747
748         return ERROR_NT(status);
749 }
750
751 /****************************************************************************
752  Reply to a getatr.
753 ****************************************************************************/
754
755 int reply_getatr(connection_struct *conn, char *inbuf,char *outbuf, int dum_size, int dum_buffsize)
756 {
757         pstring fname;
758         int outsize = 0;
759         SMB_STRUCT_STAT sbuf;
760         int mode=0;
761         SMB_OFF_T size=0;
762         time_t mtime=0;
763         char *p;
764         NTSTATUS status;
765
766         START_PROFILE(SMBgetatr);
767
768         p = smb_buf(inbuf) + 1;
769         p += srvstr_get_path(inbuf, fname, p, sizeof(fname), 0, STR_TERMINATE, &status);
770         if (!NT_STATUS_IS_OK(status)) {
771                 END_PROFILE(SMBgetatr);
772                 return ERROR_NT(status);
773         }
774
775         status = resolve_dfspath(conn, SVAL(inbuf,smb_flg2) & FLAGS2_DFS_PATHNAMES, fname);
776         if (!NT_STATUS_IS_OK(status)) {
777                 END_PROFILE(SMBgetatr);
778                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
779                         return ERROR_BOTH(NT_STATUS_PATH_NOT_COVERED, ERRSRV, ERRbadpath);
780                 }
781                 return ERROR_NT(status);
782         }
783   
784         /* dos smetimes asks for a stat of "" - it returns a "hidden directory"
785                 under WfWg - weird! */
786         if (*fname == '\0') {
787                 mode = aHIDDEN | aDIR;
788                 if (!CAN_WRITE(conn)) {
789                         mode |= aRONLY;
790                 }
791                 size = 0;
792                 mtime = 0;
793         } else {
794                 status = unix_convert(conn, fname, False, NULL,&sbuf);
795                 if (!NT_STATUS_IS_OK(status)) {
796                         END_PROFILE(SMBgetatr);
797                         return ERROR_NT(status);
798                 }
799                 status = check_name(conn, fname);
800                 if (!NT_STATUS_IS_OK(status)) {
801                         DEBUG(3,("reply_getatr: check_name of %s failed (%s)\n",fname,nt_errstr(status)));
802                         END_PROFILE(SMBgetatr);
803                         return ERROR_NT(status);
804                 }
805                 if (!VALID_STAT(sbuf) && (SMB_VFS_STAT(conn,fname,&sbuf) != 0)) {
806                         DEBUG(3,("reply_getatr: stat of %s failed (%s)\n",fname,strerror(errno)));
807                         return UNIXERROR(ERRDOS,ERRbadfile);
808                 }
809
810                 mode = dos_mode(conn,fname,&sbuf);
811                 size = sbuf.st_size;
812                 mtime = sbuf.st_mtime;
813                 if (mode & aDIR) {
814                         size = 0;
815                 }
816         }
817   
818         outsize = set_message(inbuf,outbuf,10,0,True);
819
820         SSVAL(outbuf,smb_vwv0,mode);
821         if(lp_dos_filetime_resolution(SNUM(conn)) ) {
822                 srv_put_dos_date3(outbuf,smb_vwv1,mtime & ~1);
823         } else {
824                 srv_put_dos_date3(outbuf,smb_vwv1,mtime);
825         }
826         SIVAL(outbuf,smb_vwv3,(uint32)size);
827
828         if (Protocol >= PROTOCOL_NT1) {
829                 SSVAL(outbuf,smb_flg2,SVAL(outbuf, smb_flg2) | FLAGS2_IS_LONG_NAME);
830         }
831   
832         DEBUG(3,("reply_getatr: name=%s mode=%d size=%u\n", fname, mode, (unsigned int)size ) );
833   
834         END_PROFILE(SMBgetatr);
835         return(outsize);
836 }
837
838 /****************************************************************************
839  Reply to a setatr.
840 ****************************************************************************/
841
842 int reply_setatr(connection_struct *conn, char *inbuf,char *outbuf, int dum_size, int dum_buffsize)
843 {
844         pstring fname;
845         int outsize = 0;
846         int mode;
847         time_t mtime;
848         SMB_STRUCT_STAT sbuf;
849         char *p;
850         NTSTATUS status;
851
852         START_PROFILE(SMBsetatr);
853
854         p = smb_buf(inbuf) + 1;
855         p += srvstr_get_path(inbuf, fname, p, sizeof(fname), 0, STR_TERMINATE, &status);
856         if (!NT_STATUS_IS_OK(status)) {
857                 END_PROFILE(SMBsetatr);
858                 return ERROR_NT(status);
859         }
860
861         status = resolve_dfspath(conn, SVAL(inbuf,smb_flg2) & FLAGS2_DFS_PATHNAMES, fname);
862         if (!NT_STATUS_IS_OK(status)) {
863                 END_PROFILE(SMBsetatr);
864                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
865                         return ERROR_BOTH(NT_STATUS_PATH_NOT_COVERED, ERRSRV, ERRbadpath);
866                 }
867                 return ERROR_NT(status);
868         }
869   
870         status = unix_convert(conn, fname, False, NULL, &sbuf);
871         if (!NT_STATUS_IS_OK(status)) {
872                 END_PROFILE(SMBsetatr);
873                 return ERROR_NT(status);
874         }
875
876         status = check_name(conn, fname);
877         if (!NT_STATUS_IS_OK(status)) {
878                 END_PROFILE(SMBsetatr);
879                 return ERROR_NT(status);
880         }
881
882         if (fname[0] == '.' && fname[1] == '\0') {
883                 /*
884                  * Not sure here is the right place to catch this
885                  * condition. Might be moved to somewhere else later -- vl
886                  */
887                 END_PROFILE(SMBsetatr);
888                 return ERROR_NT(NT_STATUS_ACCESS_DENIED);
889         }
890
891         mode = SVAL(inbuf,smb_vwv0);
892         mtime = srv_make_unix_date3(inbuf+smb_vwv1);
893   
894         if (mode != FILE_ATTRIBUTE_NORMAL) {
895                 if (VALID_STAT_OF_DIR(sbuf))
896                         mode |= aDIR;
897                 else
898                         mode &= ~aDIR;
899
900                 if (file_set_dosmode(conn,fname,mode,&sbuf,False) != 0) {
901                         END_PROFILE(SMBsetatr);
902                         return UNIXERROR(ERRDOS, ERRnoaccess);
903                 }
904         }
905
906         if (!set_filetime(conn,fname,convert_time_t_to_timespec(mtime))) {
907                 END_PROFILE(SMBsetatr);
908                 return UNIXERROR(ERRDOS, ERRnoaccess);
909         }
910  
911         outsize = set_message(inbuf,outbuf,0,0,False);
912   
913         DEBUG( 3, ( "setatr name=%s mode=%d\n", fname, mode ) );
914   
915         END_PROFILE(SMBsetatr);
916         return(outsize);
917 }
918
919 /****************************************************************************
920  Reply to a dskattr.
921 ****************************************************************************/
922
923 int reply_dskattr(connection_struct *conn, char *inbuf,char *outbuf, int dum_size, int dum_buffsize)
924 {
925         int outsize = 0;
926         SMB_BIG_UINT dfree,dsize,bsize;
927         START_PROFILE(SMBdskattr);
928
929         if (get_dfree_info(conn,".",True,&bsize,&dfree,&dsize) == (SMB_BIG_UINT)-1) {
930                 END_PROFILE(SMBdskattr);
931                 return(UNIXERROR(ERRHRD,ERRgeneral));
932         }
933   
934         outsize = set_message(inbuf,outbuf,5,0,True);
935         
936         if (Protocol <= PROTOCOL_LANMAN2) {
937                 double total_space, free_space;
938                 /* we need to scale this to a number that DOS6 can handle. We
939                    use floating point so we can handle large drives on systems
940                    that don't have 64 bit integers 
941
942                    we end up displaying a maximum of 2G to DOS systems
943                 */
944                 total_space = dsize * (double)bsize;
945                 free_space = dfree * (double)bsize;
946
947                 dsize = (total_space+63*512) / (64*512);
948                 dfree = (free_space+63*512) / (64*512);
949                 
950                 if (dsize > 0xFFFF) dsize = 0xFFFF;
951                 if (dfree > 0xFFFF) dfree = 0xFFFF;
952
953                 SSVAL(outbuf,smb_vwv0,dsize);
954                 SSVAL(outbuf,smb_vwv1,64); /* this must be 64 for dos systems */
955                 SSVAL(outbuf,smb_vwv2,512); /* and this must be 512 */
956                 SSVAL(outbuf,smb_vwv3,dfree);
957         } else {
958                 SSVAL(outbuf,smb_vwv0,dsize);
959                 SSVAL(outbuf,smb_vwv1,bsize/512);
960                 SSVAL(outbuf,smb_vwv2,512);
961                 SSVAL(outbuf,smb_vwv3,dfree);
962         }
963
964         DEBUG(3,("dskattr dfree=%d\n", (unsigned int)dfree));
965
966         END_PROFILE(SMBdskattr);
967         return(outsize);
968 }
969
970 /****************************************************************************
971  Reply to a search.
972  Can be called from SMBsearch, SMBffirst or SMBfunique.
973 ****************************************************************************/
974
975 int reply_search(connection_struct *conn, char *inbuf,char *outbuf, int dum_size, int dum_buffsize)
976 {
977         pstring mask;
978         pstring directory;
979         pstring fname;
980         SMB_OFF_T size;
981         uint32 mode;
982         time_t date;
983         uint32 dirtype;
984         int outsize = 0;
985         unsigned int numentries = 0;
986         unsigned int maxentries = 0;
987         BOOL finished = False;
988         char *p;
989         int status_len;
990         pstring path;
991         char status[21];
992         int dptr_num= -1;
993         BOOL check_descend = False;
994         BOOL expect_close = False;
995         NTSTATUS nt_status;
996         BOOL mask_contains_wcard = False;
997         BOOL allow_long_path_components = (SVAL(inbuf,smb_flg2) & FLAGS2_LONG_PATH_COMPONENTS) ? True : False;
998
999         START_PROFILE(SMBsearch);
1000
1001         if (lp_posix_pathnames()) {
1002                 END_PROFILE(SMBsearch);
1003                 return reply_unknown(inbuf, outbuf);
1004         }
1005
1006         *mask = *directory = *fname = 0;
1007
1008         /* If we were called as SMBffirst then we must expect close. */
1009         if(CVAL(inbuf,smb_com) == SMBffirst) {
1010                 expect_close = True;
1011         }
1012   
1013         outsize = set_message(inbuf,outbuf,1,3,True);
1014         maxentries = SVAL(inbuf,smb_vwv0); 
1015         dirtype = SVAL(inbuf,smb_vwv1);
1016         p = smb_buf(inbuf) + 1;
1017         p += srvstr_get_path_wcard(inbuf, path, p, sizeof(path), 0, STR_TERMINATE, &nt_status, &mask_contains_wcard);
1018         if (!NT_STATUS_IS_OK(nt_status)) {
1019                 END_PROFILE(SMBsearch);
1020                 return ERROR_NT(nt_status);
1021         }
1022
1023         nt_status = resolve_dfspath_wcard(conn, SVAL(inbuf,smb_flg2) & FLAGS2_DFS_PATHNAMES, path, &mask_contains_wcard);
1024         if (!NT_STATUS_IS_OK(nt_status)) {
1025                 END_PROFILE(SMBsearch);
1026                 if (NT_STATUS_EQUAL(nt_status,NT_STATUS_PATH_NOT_COVERED)) {
1027                         return ERROR_BOTH(NT_STATUS_PATH_NOT_COVERED, ERRSRV, ERRbadpath);
1028                 }
1029                 return ERROR_NT(nt_status);
1030         }
1031   
1032         p++;
1033         status_len = SVAL(p, 0);
1034         p += 2;
1035   
1036         /* dirtype &= ~aDIR; */
1037
1038         if (status_len == 0) {
1039                 SMB_STRUCT_STAT sbuf;
1040
1041                 pstrcpy(directory,path);
1042                 nt_status = unix_convert(conn, directory, True, NULL, &sbuf);
1043                 if (!NT_STATUS_IS_OK(nt_status)) {
1044                         END_PROFILE(SMBsearch);
1045                         return ERROR_NT(nt_status);
1046                 }
1047
1048                 nt_status = check_name(conn, directory);
1049                 if (!NT_STATUS_IS_OK(nt_status)) {
1050                         END_PROFILE(SMBsearch);
1051                         return ERROR_NT(nt_status);
1052                 }
1053
1054                 p = strrchr_m(directory,'/');
1055                 if (!p) {
1056                         pstrcpy(mask,directory);
1057                         pstrcpy(directory,".");
1058                 } else {
1059                         *p = 0;
1060                         pstrcpy(mask,p+1);
1061                 }
1062
1063                 if (*directory == '\0') {
1064                         pstrcpy(directory,".");
1065                 }
1066                 memset((char *)status,'\0',21);
1067                 SCVAL(status,0,(dirtype & 0x1F));
1068         } else {
1069                 int status_dirtype;
1070
1071                 memcpy(status,p,21);
1072                 status_dirtype = CVAL(status,0) & 0x1F;
1073                 if (status_dirtype != (dirtype & 0x1F)) {
1074                         dirtype = status_dirtype;
1075                 }
1076
1077                 conn->dirptr = dptr_fetch(status+12,&dptr_num);      
1078                 if (!conn->dirptr) {
1079                         goto SearchEmpty;
1080                 }
1081                 string_set(&conn->dirpath,dptr_path(dptr_num));
1082                 pstrcpy(mask, dptr_wcard(dptr_num));
1083                 /*
1084                  * For a 'continue' search we have no string. So
1085                  * check from the initial saved string.
1086                  */
1087                 mask_contains_wcard = ms_has_wild(mask);
1088         }
1089
1090         p = smb_buf(outbuf) + 3;
1091      
1092         if (status_len == 0) {
1093                 nt_status = dptr_create(conn,
1094                                         directory,
1095                                         True,
1096                                         expect_close,
1097                                         SVAL(inbuf,smb_pid),
1098                                         mask,
1099                                         mask_contains_wcard,
1100                                         dirtype,
1101                                         &conn->dirptr);
1102                 if (!NT_STATUS_IS_OK(nt_status)) {
1103                         return ERROR_NT(nt_status);
1104                 }
1105                 dptr_num = dptr_dnum(conn->dirptr);
1106         } else {
1107                 dirtype = dptr_attr(dptr_num);
1108         }
1109
1110         DEBUG(4,("dptr_num is %d\n",dptr_num));
1111
1112         if ((dirtype&0x1F) == aVOLID) {   
1113                 memcpy(p,status,21);
1114                 make_dir_struct(p,"???????????",volume_label(SNUM(conn)),
1115                                 0,aVOLID,0,!allow_long_path_components);
1116                 dptr_fill(p+12,dptr_num);
1117                 if (dptr_zero(p+12) && (status_len==0)) {
1118                         numentries = 1;
1119                 } else {
1120                         numentries = 0;
1121                 }
1122                 p += DIR_STRUCT_SIZE;
1123         } else {
1124                 unsigned int i;
1125                 maxentries = MIN(maxentries, ((BUFFER_SIZE - (p - outbuf))/DIR_STRUCT_SIZE));
1126
1127                 DEBUG(8,("dirpath=<%s> dontdescend=<%s>\n",
1128                         conn->dirpath,lp_dontdescend(SNUM(conn))));
1129                 if (in_list(conn->dirpath, lp_dontdescend(SNUM(conn)),True)) {
1130                         check_descend = True;
1131                 }
1132
1133                 for (i=numentries;(i<maxentries) && !finished;i++) {
1134                         finished = !get_dir_entry(conn,mask,dirtype,fname,&size,&mode,&date,check_descend);
1135                         if (!finished) {
1136                                 memcpy(p,status,21);
1137                                 make_dir_struct(p,mask,fname,size, mode,date,
1138                                                 !allow_long_path_components);
1139                                 if (!dptr_fill(p+12,dptr_num)) {
1140                                         break;
1141                                 }
1142                                 numentries++;
1143                                 p += DIR_STRUCT_SIZE;
1144                         }
1145                 }
1146         }
1147
1148   SearchEmpty:
1149
1150         /* If we were called as SMBffirst with smb_search_id == NULL
1151                 and no entries were found then return error and close dirptr 
1152                 (X/Open spec) */
1153
1154         if (numentries == 0) {
1155                 dptr_close(&dptr_num);
1156         } else if(expect_close && status_len == 0) {
1157                 /* Close the dptr - we know it's gone */
1158                 dptr_close(&dptr_num);
1159         }
1160
1161         /* If we were called as SMBfunique, then we can close the dirptr now ! */
1162         if(dptr_num >= 0 && CVAL(inbuf,smb_com) == SMBfunique) {
1163                 dptr_close(&dptr_num);
1164         }
1165
1166         if ((numentries == 0) && !mask_contains_wcard) {
1167                 return ERROR_BOTH(STATUS_NO_MORE_FILES,ERRDOS,ERRnofiles);
1168         }
1169
1170         SSVAL(outbuf,smb_vwv0,numentries);
1171         SSVAL(outbuf,smb_vwv1,3 + numentries * DIR_STRUCT_SIZE);
1172         SCVAL(smb_buf(outbuf),0,5);
1173         SSVAL(smb_buf(outbuf),1,numentries*DIR_STRUCT_SIZE);
1174
1175         /* The replies here are never long name. */
1176         SSVAL(outbuf,smb_flg2,SVAL(outbuf, smb_flg2) & (~FLAGS2_IS_LONG_NAME));
1177         if (!allow_long_path_components) {
1178                 SSVAL(outbuf,smb_flg2,SVAL(outbuf, smb_flg2) & (~FLAGS2_LONG_PATH_COMPONENTS));
1179         }
1180
1181         /* This SMB *always* returns ASCII names. Remove the unicode bit in flags2. */
1182         SSVAL(outbuf,smb_flg2, (SVAL(outbuf, smb_flg2) & (~FLAGS2_UNICODE_STRINGS)));
1183           
1184         outsize += DIR_STRUCT_SIZE*numentries;
1185         smb_setlen(inbuf,outbuf,outsize - 4);
1186   
1187         if ((! *directory) && dptr_path(dptr_num))
1188                 slprintf(directory, sizeof(directory)-1, "(%s)",dptr_path(dptr_num));
1189
1190         DEBUG( 4, ( "%s mask=%s path=%s dtype=%d nument=%u of %u\n",
1191                 smb_fn_name(CVAL(inbuf,smb_com)), 
1192                 mask, directory, dirtype, numentries, maxentries ) );
1193
1194         END_PROFILE(SMBsearch);
1195         return(outsize);
1196 }
1197
1198 /****************************************************************************
1199  Reply to a fclose (stop directory search).
1200 ****************************************************************************/
1201
1202 int reply_fclose(connection_struct *conn, char *inbuf,char *outbuf, int dum_size, int dum_buffsize)
1203 {
1204         int outsize = 0;
1205         int status_len;
1206         pstring path;
1207         char status[21];
1208         int dptr_num= -2;
1209         char *p;
1210         NTSTATUS err;
1211         BOOL path_contains_wcard = False;
1212
1213         START_PROFILE(SMBfclose);
1214
1215         if (lp_posix_pathnames()) {
1216                 END_PROFILE(SMBfclose);
1217                 return reply_unknown(inbuf, outbuf);
1218         }
1219
1220         outsize = set_message(inbuf,outbuf,1,0,True);
1221         p = smb_buf(inbuf) + 1;
1222         p += srvstr_get_path_wcard(inbuf, path, p, sizeof(path), 0, STR_TERMINATE, &err, &path_contains_wcard);
1223         if (!NT_STATUS_IS_OK(err)) {
1224                 END_PROFILE(SMBfclose);
1225                 return ERROR_NT(err);
1226         }
1227         p++;
1228         status_len = SVAL(p,0);
1229         p += 2;
1230
1231         if (status_len == 0) {
1232                 END_PROFILE(SMBfclose);
1233                 return ERROR_DOS(ERRSRV,ERRsrverror);
1234         }
1235
1236         memcpy(status,p,21);
1237
1238         if(dptr_fetch(status+12,&dptr_num)) {
1239                 /*  Close the dptr - we know it's gone */
1240                 dptr_close(&dptr_num);
1241         }
1242
1243         SSVAL(outbuf,smb_vwv0,0);
1244
1245         DEBUG(3,("search close\n"));
1246
1247         END_PROFILE(SMBfclose);
1248         return(outsize);
1249 }
1250
1251 /****************************************************************************
1252  Reply to an open.
1253 ****************************************************************************/
1254
1255 int reply_open(connection_struct *conn, char *inbuf,char *outbuf, int dum_size, int dum_buffsize)
1256 {
1257         pstring fname;
1258         int outsize = 0;
1259         uint32 fattr=0;
1260         SMB_OFF_T size = 0;
1261         time_t mtime=0;
1262         int info;
1263         SMB_STRUCT_STAT sbuf;
1264         files_struct *fsp;
1265         int oplock_request = CORE_OPLOCK_REQUEST(inbuf);
1266         int deny_mode;
1267         uint32 dos_attr = SVAL(inbuf,smb_vwv1);
1268         uint32 access_mask;
1269         uint32 share_mode;
1270         uint32 create_disposition;
1271         uint32 create_options = 0;
1272         NTSTATUS status;
1273         START_PROFILE(SMBopen);
1274  
1275         deny_mode = SVAL(inbuf,smb_vwv0);
1276
1277         srvstr_get_path(inbuf, fname, smb_buf(inbuf)+1, sizeof(fname), 0, STR_TERMINATE, &status);
1278         if (!NT_STATUS_IS_OK(status)) {
1279                 END_PROFILE(SMBopen);
1280                 return ERROR_NT(status);
1281         }
1282
1283         status = resolve_dfspath(conn, SVAL(inbuf,smb_flg2) & FLAGS2_DFS_PATHNAMES, fname);
1284         if (!NT_STATUS_IS_OK(status)) {
1285                 END_PROFILE(SMBopen);
1286                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1287                         return ERROR_BOTH(NT_STATUS_PATH_NOT_COVERED, ERRSRV, ERRbadpath);
1288                 }
1289                 return ERROR_NT(status);
1290         }
1291
1292         status = unix_convert(conn, fname, False, NULL, &sbuf);
1293         if (!NT_STATUS_IS_OK(status)) {
1294                 END_PROFILE(SMBopen);
1295                 return ERROR_NT(status);
1296         }
1297     
1298         status = check_name(conn, fname);
1299         if (!NT_STATUS_IS_OK(status)) {
1300                 END_PROFILE(SMBopen);
1301                 return ERROR_NT(status);
1302         }
1303
1304         if (!map_open_params_to_ntcreate(fname, deny_mode, OPENX_FILE_EXISTS_OPEN,
1305                         &access_mask, &share_mode, &create_disposition, &create_options)) {
1306                 END_PROFILE(SMBopen);
1307                 return ERROR_NT(NT_STATUS_DOS(ERRDOS, ERRbadaccess));
1308         }
1309
1310         status = open_file_ntcreate(conn,fname,&sbuf,
1311                         access_mask,
1312                         share_mode,
1313                         create_disposition,
1314                         create_options,
1315                         dos_attr,
1316                         oplock_request,
1317                         &info, &fsp);
1318
1319         if (!NT_STATUS_IS_OK(status)) {
1320                 END_PROFILE(SMBopen);
1321                 if (open_was_deferred(SVAL(inbuf,smb_mid))) {
1322                         /* We have re-scheduled this call. */
1323                         return -1;
1324                 }
1325                 return ERROR_NT(status);
1326         }
1327
1328         size = sbuf.st_size;
1329         fattr = dos_mode(conn,fname,&sbuf);
1330         mtime = sbuf.st_mtime;
1331
1332         if (fattr & aDIR) {
1333                 DEBUG(3,("attempt to open a directory %s\n",fname));
1334                 close_file(fsp,ERROR_CLOSE);
1335                 END_PROFILE(SMBopen);
1336                 return ERROR_DOS(ERRDOS,ERRnoaccess);
1337         }
1338   
1339         outsize = set_message(inbuf,outbuf,7,0,True);
1340         SSVAL(outbuf,smb_vwv0,fsp->fnum);
1341         SSVAL(outbuf,smb_vwv1,fattr);
1342         if(lp_dos_filetime_resolution(SNUM(conn)) ) {
1343                 srv_put_dos_date3(outbuf,smb_vwv2,mtime & ~1);
1344         } else {
1345                 srv_put_dos_date3(outbuf,smb_vwv2,mtime);
1346         }
1347         SIVAL(outbuf,smb_vwv4,(uint32)size);
1348         SSVAL(outbuf,smb_vwv6,deny_mode);
1349
1350         if (oplock_request && lp_fake_oplocks(SNUM(conn))) {
1351                 SCVAL(outbuf,smb_flg,CVAL(outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1352         }
1353     
1354         if(EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
1355                 SCVAL(outbuf,smb_flg,CVAL(outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1356         }
1357         END_PROFILE(SMBopen);
1358         return(outsize);
1359 }
1360
1361 /****************************************************************************
1362  Reply to an open and X.
1363 ****************************************************************************/
1364
1365 int reply_open_and_X(connection_struct *conn, char *inbuf,char *outbuf,int length,int bufsize)
1366 {
1367         pstring fname;
1368         uint16 open_flags = SVAL(inbuf,smb_vwv2);
1369         int deny_mode = SVAL(inbuf,smb_vwv3);
1370         uint32 smb_attr = SVAL(inbuf,smb_vwv5);
1371         /* Breakout the oplock request bits so we can set the
1372                 reply bits separately. */
1373         int ex_oplock_request = EXTENDED_OPLOCK_REQUEST(inbuf);
1374         int core_oplock_request = CORE_OPLOCK_REQUEST(inbuf);
1375         int oplock_request = ex_oplock_request | core_oplock_request;
1376 #if 0
1377         int smb_sattr = SVAL(inbuf,smb_vwv4); 
1378         uint32 smb_time = make_unix_date3(inbuf+smb_vwv6);
1379 #endif
1380         int smb_ofun = SVAL(inbuf,smb_vwv8);
1381         uint32 fattr=0;
1382         int mtime=0;
1383         SMB_STRUCT_STAT sbuf;
1384         int smb_action = 0;
1385         files_struct *fsp;
1386         NTSTATUS status;
1387         SMB_BIG_UINT allocation_size = (SMB_BIG_UINT)IVAL(inbuf,smb_vwv9);
1388         ssize_t retval = -1;
1389         uint32 access_mask;
1390         uint32 share_mode;
1391         uint32 create_disposition;
1392         uint32 create_options = 0;
1393
1394         START_PROFILE(SMBopenX);
1395
1396         /* If it's an IPC, pass off the pipe handler. */
1397         if (IS_IPC(conn)) {
1398                 if (lp_nt_pipe_support()) {
1399                         END_PROFILE(SMBopenX);
1400                         return reply_open_pipe_and_X(conn, inbuf,outbuf,length,bufsize);
1401                 } else {
1402                         END_PROFILE(SMBopenX);
1403                         return ERROR_DOS(ERRSRV,ERRaccess);
1404                 }
1405         }
1406
1407         /* XXXX we need to handle passed times, sattr and flags */
1408         srvstr_get_path(inbuf, fname, smb_buf(inbuf), sizeof(fname), 0, STR_TERMINATE, &status);
1409         if (!NT_STATUS_IS_OK(status)) {
1410                 END_PROFILE(SMBopenX);
1411                 return ERROR_NT(status);
1412         }
1413
1414         status = resolve_dfspath(conn, SVAL(inbuf,smb_flg2) & FLAGS2_DFS_PATHNAMES, fname);
1415         if (!NT_STATUS_IS_OK(status)) {
1416                 END_PROFILE(SMBopenX);
1417                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1418                         return ERROR_BOTH(NT_STATUS_PATH_NOT_COVERED, ERRSRV, ERRbadpath);
1419                 }
1420                 return ERROR_NT(status);
1421         }
1422
1423         status = unix_convert(conn, fname, False, NULL, &sbuf);
1424         if (!NT_STATUS_IS_OK(status)) {
1425                 END_PROFILE(SMBopenX);
1426                 return ERROR_NT(status);
1427         }
1428
1429         status = check_name(conn, fname);
1430         if (!NT_STATUS_IS_OK(status)) {
1431                 END_PROFILE(SMBopenX);
1432                 return ERROR_NT(status);
1433         }
1434
1435         if (!map_open_params_to_ntcreate(fname, deny_mode, smb_ofun,
1436                                 &access_mask,
1437                                 &share_mode,
1438                                 &create_disposition,
1439                                 &create_options)) {
1440                 END_PROFILE(SMBopenX);
1441                 return ERROR_NT(NT_STATUS_DOS(ERRDOS, ERRbadaccess));
1442         }
1443
1444         status = open_file_ntcreate(conn,fname,&sbuf,
1445                         access_mask,
1446                         share_mode,
1447                         create_disposition,
1448                         create_options,
1449                         smb_attr,
1450                         oplock_request,
1451                         &smb_action, &fsp);
1452       
1453         if (!NT_STATUS_IS_OK(status)) {
1454                 END_PROFILE(SMBopenX);
1455                 if (open_was_deferred(SVAL(inbuf,smb_mid))) {
1456                         /* We have re-scheduled this call. */
1457                         return -1;
1458                 }
1459                 return ERROR_NT(status);
1460         }
1461
1462         /* Setting the "size" field in vwv9 and vwv10 causes the file to be set to this size,
1463            if the file is truncated or created. */
1464         if (((smb_action == FILE_WAS_CREATED) || (smb_action == FILE_WAS_OVERWRITTEN)) && allocation_size) {
1465                 fsp->initial_allocation_size = smb_roundup(fsp->conn, allocation_size);
1466                 if (vfs_allocate_file_space(fsp, fsp->initial_allocation_size) == -1) {
1467                         close_file(fsp,ERROR_CLOSE);
1468                         END_PROFILE(SMBopenX);
1469                         return ERROR_NT(NT_STATUS_DISK_FULL);
1470                 }
1471                 retval = vfs_set_filelen(fsp, (SMB_OFF_T)allocation_size);
1472                 if (retval < 0) {
1473                         close_file(fsp,ERROR_CLOSE);
1474                         END_PROFILE(SMBopenX);
1475                         return ERROR_NT(NT_STATUS_DISK_FULL);
1476                 }
1477                 sbuf.st_size = get_allocation_size(conn,fsp,&sbuf);
1478         }
1479
1480         fattr = dos_mode(conn,fname,&sbuf);
1481         mtime = sbuf.st_mtime;
1482         if (fattr & aDIR) {
1483                 close_file(fsp,ERROR_CLOSE);
1484                 END_PROFILE(SMBopenX);
1485                 return ERROR_DOS(ERRDOS,ERRnoaccess);
1486         }
1487
1488         /* If the caller set the extended oplock request bit
1489                 and we granted one (by whatever means) - set the
1490                 correct bit for extended oplock reply.
1491         */
1492
1493         if (ex_oplock_request && lp_fake_oplocks(SNUM(conn))) {
1494                 smb_action |= EXTENDED_OPLOCK_GRANTED;
1495         }
1496
1497         if(ex_oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
1498                 smb_action |= EXTENDED_OPLOCK_GRANTED;
1499         }
1500
1501         /* If the caller set the core oplock request bit
1502                 and we granted one (by whatever means) - set the
1503                 correct bit for core oplock reply.
1504         */
1505
1506         if (core_oplock_request && lp_fake_oplocks(SNUM(conn))) {
1507                 SCVAL(outbuf,smb_flg,CVAL(outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1508         }
1509
1510         if(core_oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
1511                 SCVAL(outbuf,smb_flg,CVAL(outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1512         }
1513
1514         if (open_flags & EXTENDED_RESPONSE_REQUIRED) {
1515                 set_message(inbuf,outbuf,19,0,True);
1516         } else {
1517                 set_message(inbuf,outbuf,15,0,True);
1518         }
1519         SSVAL(outbuf,smb_vwv2,fsp->fnum);
1520         SSVAL(outbuf,smb_vwv3,fattr);
1521         if(lp_dos_filetime_resolution(SNUM(conn)) ) {
1522                 srv_put_dos_date3(outbuf,smb_vwv4,mtime & ~1);
1523         } else {
1524                 srv_put_dos_date3(outbuf,smb_vwv4,mtime);
1525         }
1526         SIVAL(outbuf,smb_vwv6,(uint32)sbuf.st_size);
1527         SSVAL(outbuf,smb_vwv8,GET_OPENX_MODE(deny_mode));
1528         SSVAL(outbuf,smb_vwv11,smb_action);
1529
1530         if (open_flags & EXTENDED_RESPONSE_REQUIRED) {
1531                 SIVAL(outbuf, smb_vwv15, STD_RIGHT_ALL_ACCESS);
1532         }
1533
1534         END_PROFILE(SMBopenX);
1535         return chain_reply(inbuf,outbuf,length,bufsize);
1536 }
1537
1538 /****************************************************************************
1539  Reply to a SMBulogoffX.
1540  conn POINTER CAN BE NULL HERE !
1541 ****************************************************************************/
1542
1543 int reply_ulogoffX(connection_struct *conn, char *inbuf,char *outbuf,int length,int bufsize)
1544 {
1545         uint16 vuid = SVAL(inbuf,smb_uid);
1546         user_struct *vuser = get_valid_user_struct(vuid);
1547         START_PROFILE(SMBulogoffX);
1548
1549         if(vuser == 0)
1550                 DEBUG(3,("ulogoff, vuser id %d does not map to user.\n", vuid));
1551
1552         /* in user level security we are supposed to close any files
1553                 open by this user */
1554         if ((vuser != 0) && (lp_security() != SEC_SHARE))
1555                 file_close_user(vuid);
1556
1557         invalidate_vuid(vuid);
1558
1559         set_message(inbuf,outbuf,2,0,True);
1560
1561         DEBUG( 3, ( "ulogoffX vuid=%d\n", vuid ) );
1562
1563         END_PROFILE(SMBulogoffX);
1564         return chain_reply(inbuf,outbuf,length,bufsize);
1565 }
1566
1567 /****************************************************************************
1568  Reply to a mknew or a create.
1569 ****************************************************************************/
1570
1571 int reply_mknew(connection_struct *conn, char *inbuf,char *outbuf, int dum_size, int dum_buffsize)
1572 {
1573         pstring fname;
1574         int com;
1575         int outsize = 0;
1576         uint32 fattr = SVAL(inbuf,smb_vwv0);
1577         struct timespec ts[2];
1578         files_struct *fsp;
1579         int oplock_request = CORE_OPLOCK_REQUEST(inbuf);
1580         SMB_STRUCT_STAT sbuf;
1581         NTSTATUS status;
1582         uint32 access_mask = FILE_GENERIC_READ | FILE_GENERIC_WRITE;
1583         uint32 share_mode = FILE_SHARE_READ|FILE_SHARE_WRITE;
1584         uint32 create_disposition;
1585         uint32 create_options = 0;
1586
1587         START_PROFILE(SMBcreate);
1588  
1589         com = SVAL(inbuf,smb_com);
1590
1591         ts[1] = convert_time_t_to_timespec(srv_make_unix_date3(inbuf + smb_vwv1)); /* mtime. */
1592
1593         srvstr_get_path(inbuf, fname, smb_buf(inbuf) + 1, sizeof(fname), 0, STR_TERMINATE, &status);
1594         if (!NT_STATUS_IS_OK(status)) {
1595                 END_PROFILE(SMBcreate);
1596                 return ERROR_NT(status);
1597         }
1598
1599         status = resolve_dfspath(conn, SVAL(inbuf,smb_flg2) & FLAGS2_DFS_PATHNAMES, fname);
1600         if (!NT_STATUS_IS_OK(status)) {
1601                 END_PROFILE(SMBcreate);
1602                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1603                         return ERROR_BOTH(NT_STATUS_PATH_NOT_COVERED, ERRSRV, ERRbadpath);
1604                 }
1605                 return ERROR_NT(status);
1606         }
1607
1608         status = unix_convert(conn, fname, False, NULL, &sbuf);
1609         if (!NT_STATUS_IS_OK(status)) {
1610                 END_PROFILE(SMBcreate);
1611                 return ERROR_NT(status);
1612         }
1613
1614         status = check_name(conn, fname);
1615         if (!NT_STATUS_IS_OK(status)) {
1616                 END_PROFILE(SMBcreate);
1617                 return ERROR_NT(status);
1618         }
1619
1620         if (fattr & aVOLID) {
1621                 DEBUG(0,("Attempt to create file (%s) with volid set - please report this\n",fname));
1622         }
1623
1624         if(com == SMBmknew) {
1625                 /* We should fail if file exists. */
1626                 create_disposition = FILE_CREATE;
1627         } else {
1628                 /* Create if file doesn't exist, truncate if it does. */
1629                 create_disposition = FILE_OVERWRITE_IF;
1630         }
1631
1632         /* Open file using ntcreate. */
1633         status = open_file_ntcreate(conn,fname,&sbuf,
1634                                 access_mask,
1635                                 share_mode,
1636                                 create_disposition,
1637                                 create_options,
1638                                 fattr,
1639                                 oplock_request,
1640                                 NULL, &fsp);
1641   
1642         if (!NT_STATUS_IS_OK(status)) {
1643                 END_PROFILE(SMBcreate);
1644                 if (open_was_deferred(SVAL(inbuf,smb_mid))) {
1645                         /* We have re-scheduled this call. */
1646                         return -1;
1647                 }
1648                 return ERROR_NT(status);
1649         }
1650  
1651         ts[0] = get_atimespec(&sbuf); /* atime. */
1652         file_ntimes(conn, fname, ts);
1653
1654         outsize = set_message(inbuf,outbuf,1,0,True);
1655         SSVAL(outbuf,smb_vwv0,fsp->fnum);
1656
1657         if (oplock_request && lp_fake_oplocks(SNUM(conn))) {
1658                 SCVAL(outbuf,smb_flg,CVAL(outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1659         }
1660  
1661         if(EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
1662                 SCVAL(outbuf,smb_flg,CVAL(outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1663         }
1664  
1665         DEBUG( 2, ( "reply_mknew: file %s\n", fname ) );
1666         DEBUG( 3, ( "reply_mknew %s fd=%d dmode=0x%x\n", fname, fsp->fh->fd, (unsigned int)fattr ) );
1667
1668         END_PROFILE(SMBcreate);
1669         return(outsize);
1670 }
1671
1672 /****************************************************************************
1673  Reply to a create temporary file.
1674 ****************************************************************************/
1675
1676 int reply_ctemp(connection_struct *conn, char *inbuf,char *outbuf, int dum_size, int dum_buffsize)
1677 {
1678         pstring fname;
1679         int outsize = 0;
1680         uint32 fattr = SVAL(inbuf,smb_vwv0);
1681         files_struct *fsp;
1682         int oplock_request = CORE_OPLOCK_REQUEST(inbuf);
1683         int tmpfd;
1684         SMB_STRUCT_STAT sbuf;
1685         char *p, *s;
1686         NTSTATUS status;
1687         unsigned int namelen;
1688
1689         START_PROFILE(SMBctemp);
1690
1691         srvstr_get_path(inbuf, fname, smb_buf(inbuf)+1, sizeof(fname), 0, STR_TERMINATE, &status);
1692         if (!NT_STATUS_IS_OK(status)) {
1693                 END_PROFILE(SMBctemp);
1694                 return ERROR_NT(status);
1695         }
1696         if (*fname) {
1697                 pstrcat(fname,"/TMXXXXXX");
1698         } else {
1699                 pstrcat(fname,"TMXXXXXX");
1700         }
1701
1702         status = resolve_dfspath(conn, SVAL(inbuf,smb_flg2) & FLAGS2_DFS_PATHNAMES, fname);
1703         if (!NT_STATUS_IS_OK(status)) {
1704                 END_PROFILE(SMBctemp);
1705                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1706                         return ERROR_BOTH(NT_STATUS_PATH_NOT_COVERED, ERRSRV, ERRbadpath);
1707                 }
1708                 return ERROR_NT(status);
1709         }
1710
1711         status = unix_convert(conn, fname, False, NULL, &sbuf);
1712         if (!NT_STATUS_IS_OK(status)) {
1713                 END_PROFILE(SMBctemp);
1714                 return ERROR_NT(status);
1715         }
1716
1717         status = check_name(conn, fname);
1718         if (!NT_STATUS_IS_OK(status)) {
1719                 END_PROFILE(SMBctemp);
1720                 return ERROR_NT(status);
1721         }
1722   
1723         tmpfd = smb_mkstemp(fname);
1724         if (tmpfd == -1) {
1725                 END_PROFILE(SMBctemp);
1726                 return(UNIXERROR(ERRDOS,ERRnoaccess));
1727         }
1728
1729         SMB_VFS_STAT(conn,fname,&sbuf);
1730
1731         /* We should fail if file does not exist. */
1732         status = open_file_ntcreate(conn,fname,&sbuf,
1733                                 FILE_GENERIC_READ | FILE_GENERIC_WRITE,
1734                                 FILE_SHARE_READ|FILE_SHARE_WRITE,
1735                                 FILE_OPEN,
1736                                 0,
1737                                 fattr,
1738                                 oplock_request,
1739                                 NULL, &fsp);
1740
1741         /* close fd from smb_mkstemp() */
1742         close(tmpfd);
1743
1744         if (!NT_STATUS_IS_OK(status)) {
1745                 END_PROFILE(SMBctemp);
1746                 if (open_was_deferred(SVAL(inbuf,smb_mid))) {
1747                         /* We have re-scheduled this call. */
1748                         return -1;
1749                 }
1750                 return ERROR_NT(status);
1751         }
1752
1753         outsize = set_message(inbuf,outbuf,1,0,True);
1754         SSVAL(outbuf,smb_vwv0,fsp->fnum);
1755
1756         /* the returned filename is relative to the directory */
1757         s = strrchr_m(fname, '/');
1758         if (!s) {
1759                 s = fname;
1760         } else {
1761                 s++;
1762         }
1763
1764         p = smb_buf(outbuf);
1765 #if 0
1766         /* Tested vs W2K3 - this doesn't seem to be here - null terminated filename is the only
1767            thing in the byte section. JRA */
1768         SSVALS(p, 0, -1); /* what is this? not in spec */
1769 #endif
1770         namelen = srvstr_push(outbuf, p, s, -1, STR_ASCII|STR_TERMINATE);
1771         p += namelen;
1772         outsize = set_message_end(inbuf,outbuf, p);
1773
1774         if (oplock_request && lp_fake_oplocks(SNUM(conn))) {
1775                 SCVAL(outbuf,smb_flg,CVAL(outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1776         }
1777   
1778         if (EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
1779                 SCVAL(outbuf,smb_flg,CVAL(outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1780         }
1781
1782         DEBUG( 2, ( "reply_ctemp: created temp file %s\n", fname ) );
1783         DEBUG( 3, ( "reply_ctemp %s fd=%d umode=0%o\n", fname, fsp->fh->fd,
1784                         (unsigned int)sbuf.st_mode ) );
1785
1786         END_PROFILE(SMBctemp);
1787         return(outsize);
1788 }
1789
1790 /*******************************************************************
1791  Check if a user is allowed to rename a file.
1792 ********************************************************************/
1793
1794 static NTSTATUS can_rename(connection_struct *conn, char *fname, uint16 dirtype, SMB_STRUCT_STAT *pst, BOOL self_open)
1795 {
1796         files_struct *fsp;
1797         uint32 fmode;
1798         NTSTATUS status;
1799
1800         if (!CAN_WRITE(conn)) {
1801                 return NT_STATUS_MEDIA_WRITE_PROTECTED;
1802         }
1803
1804         fmode = dos_mode(conn,fname,pst);
1805         if ((fmode & ~dirtype) & (aHIDDEN | aSYSTEM)) {
1806                 return NT_STATUS_NO_SUCH_FILE;
1807         }
1808
1809         if (S_ISDIR(pst->st_mode)) {
1810                 return NT_STATUS_OK;
1811         }
1812
1813         status = open_file_ntcreate(conn, fname, pst,
1814                                 DELETE_ACCESS,
1815                                 /* If we're checking our fsp don't deny for delete. */
1816                                 self_open ?
1817                                         FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE :
1818                                         FILE_SHARE_READ|FILE_SHARE_WRITE,
1819                                 FILE_OPEN,
1820                                 0,
1821                                 FILE_ATTRIBUTE_NORMAL,
1822                                 0,
1823                                 NULL, &fsp);
1824
1825         if (!NT_STATUS_IS_OK(status)) {
1826                 return status;
1827         }
1828         close_file(fsp,NORMAL_CLOSE);
1829         return NT_STATUS_OK;
1830 }
1831
1832 /*******************************************************************
1833  * unlink a file with all relevant access checks
1834  *******************************************************************/
1835
1836 static NTSTATUS do_unlink(connection_struct *conn, char *fname,
1837                           uint32 dirtype, BOOL can_defer)
1838 {
1839         SMB_STRUCT_STAT sbuf;
1840         uint32 fattr;
1841         files_struct *fsp;
1842         uint32 dirtype_orig = dirtype;
1843         NTSTATUS status;
1844
1845         DEBUG(10,("do_unlink: %s, dirtype = %d\n", fname, dirtype ));
1846
1847         if (!CAN_WRITE(conn)) {
1848                 return NT_STATUS_MEDIA_WRITE_PROTECTED;
1849         }
1850
1851         if (SMB_VFS_LSTAT(conn,fname,&sbuf) != 0) {
1852                 return map_nt_error_from_unix(errno);
1853         }
1854
1855         fattr = dos_mode(conn,fname,&sbuf);
1856
1857         if (dirtype & FILE_ATTRIBUTE_NORMAL) {
1858                 dirtype = aDIR|aARCH|aRONLY;
1859         }
1860
1861         dirtype &= (aDIR|aARCH|aRONLY|aHIDDEN|aSYSTEM);
1862         if (!dirtype) {
1863                 return NT_STATUS_NO_SUCH_FILE;
1864         }
1865
1866         if (!dir_check_ftype(conn, fattr, dirtype)) {
1867                 if (fattr & aDIR) {
1868                         return NT_STATUS_FILE_IS_A_DIRECTORY;
1869                 }
1870                 return NT_STATUS_NO_SUCH_FILE;
1871         }
1872
1873         if (dirtype_orig & 0x8000) {
1874                 /* These will never be set for POSIX. */
1875                 return NT_STATUS_NO_SUCH_FILE;
1876         }
1877
1878 #if 0
1879         if ((fattr & dirtype) & FILE_ATTRIBUTE_DIRECTORY) {
1880                 return NT_STATUS_FILE_IS_A_DIRECTORY;
1881         }
1882
1883         if ((fattr & ~dirtype) & (FILE_ATTRIBUTE_HIDDEN|FILE_ATTRIBUTE_SYSTEM)) {
1884                 return NT_STATUS_NO_SUCH_FILE;
1885         }
1886
1887         if (dirtype & 0xFF00) {
1888                 /* These will never be set for POSIX. */
1889                 return NT_STATUS_NO_SUCH_FILE;
1890         }
1891
1892         dirtype &= 0xFF;
1893         if (!dirtype) {
1894                 return NT_STATUS_NO_SUCH_FILE;
1895         }
1896
1897         /* Can't delete a directory. */
1898         if (fattr & aDIR) {
1899                 return NT_STATUS_FILE_IS_A_DIRECTORY;
1900         }
1901 #endif
1902
1903 #if 0 /* JRATEST */
1904         else if (dirtype & aDIR) /* Asked for a directory and it isn't. */
1905                 return NT_STATUS_OBJECT_NAME_INVALID;
1906 #endif /* JRATEST */
1907
1908         /* Fix for bug #3035 from SATOH Fumiyasu <fumiyas@miraclelinux.com>
1909
1910           On a Windows share, a file with read-only dosmode can be opened with
1911           DELETE_ACCESS. But on a Samba share (delete readonly = no), it
1912           fails with NT_STATUS_CANNOT_DELETE error.
1913
1914           This semantic causes a problem that a user can not
1915           rename a file with read-only dosmode on a Samba share
1916           from a Windows command prompt (i.e. cmd.exe, but can rename
1917           from Windows Explorer).
1918         */
1919
1920         if (!lp_delete_readonly(SNUM(conn))) {
1921                 if (fattr & aRONLY) {
1922                         return NT_STATUS_CANNOT_DELETE;
1923                 }
1924         }
1925
1926         /* On open checks the open itself will check the share mode, so
1927            don't do it here as we'll get it wrong. */
1928
1929         status = open_file_ntcreate(conn, fname, &sbuf,
1930                                     DELETE_ACCESS,
1931                                     FILE_SHARE_NONE,
1932                                     FILE_OPEN,
1933                                     0,
1934                                     FILE_ATTRIBUTE_NORMAL,
1935                                     can_defer ? 0 : INTERNAL_OPEN_ONLY,
1936                                     NULL, &fsp);
1937
1938         if (!NT_STATUS_IS_OK(status)) {
1939                 DEBUG(10, ("open_file_ntcreate failed: %s\n",
1940                            nt_errstr(status)));
1941                 return status;
1942         }
1943
1944         /* The set is across all open files on this dev/inode pair. */
1945         if (!set_delete_on_close(fsp, True, &current_user.ut)) {
1946                 close_file(fsp, NORMAL_CLOSE);
1947                 return NT_STATUS_ACCESS_DENIED;
1948         }
1949
1950         return close_file(fsp,NORMAL_CLOSE);
1951 }
1952
1953 /****************************************************************************
1954  The guts of the unlink command, split out so it may be called by the NT SMB
1955  code.
1956 ****************************************************************************/
1957
1958 NTSTATUS unlink_internals(connection_struct *conn, uint32 dirtype,
1959                           char *name, BOOL has_wild, BOOL can_defer)
1960 {
1961         pstring directory;
1962         pstring mask;
1963         char *p;
1964         int count=0;
1965         NTSTATUS status = NT_STATUS_OK;
1966         SMB_STRUCT_STAT sbuf;
1967         
1968         *directory = *mask = 0;
1969         
1970         status = unix_convert(conn, name, has_wild, NULL, &sbuf);
1971         if (!NT_STATUS_IS_OK(status)) {
1972                 return status;
1973         }
1974         
1975         p = strrchr_m(name,'/');
1976         if (!p) {
1977                 pstrcpy(directory,".");
1978                 pstrcpy(mask,name);
1979         } else {
1980                 *p = 0;
1981                 pstrcpy(directory,name);
1982                 pstrcpy(mask,p+1);
1983         }
1984         
1985         /*
1986          * We should only check the mangled cache
1987          * here if unix_convert failed. This means
1988          * that the path in 'mask' doesn't exist
1989          * on the file system and so we need to look
1990          * for a possible mangle. This patch from
1991          * Tine Smukavec <valentin.smukavec@hermes.si>.
1992          */
1993         
1994         if (!VALID_STAT(sbuf) && mangle_is_mangled(mask,conn->params))
1995                 mangle_check_cache( mask, sizeof(pstring)-1, conn->params );
1996         
1997         if (!has_wild) {
1998                 pstrcat(directory,"/");
1999                 pstrcat(directory,mask);
2000                 if (dirtype == 0) {
2001                         dirtype = FILE_ATTRIBUTE_NORMAL;
2002                 }
2003
2004                 status = check_name(conn, directory);
2005                 if (!NT_STATUS_IS_OK(status)) {
2006                         return status;
2007                 }
2008
2009                 status = do_unlink(conn,directory,dirtype,can_defer);
2010                 if (!NT_STATUS_IS_OK(status)) {
2011                         return status;
2012                 }
2013
2014                 count++;
2015         } else {
2016                 struct smb_Dir *dir_hnd = NULL;
2017                 long offset = 0;
2018                 const char *dname;
2019                 
2020                 if ((dirtype & SAMBA_ATTRIBUTES_MASK) == aDIR) {
2021                         return NT_STATUS_OBJECT_NAME_INVALID;
2022                 }
2023
2024                 if (strequal(mask,"????????.???")) {
2025                         pstrcpy(mask,"*");
2026                 }
2027
2028                 status = check_name(conn, directory);
2029                 if (!NT_STATUS_IS_OK(status)) {
2030                         return status;
2031                 }
2032
2033                 dir_hnd = OpenDir(conn, directory, mask, dirtype);
2034                 if (dir_hnd == NULL) {
2035                         return map_nt_error_from_unix(errno);
2036                 }
2037                 
2038                 /* XXXX the CIFS spec says that if bit0 of the flags2 field is set then
2039                    the pattern matches against the long name, otherwise the short name 
2040                    We don't implement this yet XXXX
2041                 */
2042                 
2043                 status = NT_STATUS_NO_SUCH_FILE;
2044
2045                 while ((dname = ReadDirName(dir_hnd, &offset))) {
2046                         SMB_STRUCT_STAT st;
2047                         pstring fname;
2048                         pstrcpy(fname,dname);
2049
2050                         if (!is_visible_file(conn, directory, dname, &st, True)) {
2051                                 continue;
2052                         }
2053
2054                         /* Quick check for "." and ".." */
2055                         if (fname[0] == '.') {
2056                                 if (!fname[1] || (fname[1] == '.' && !fname[2])) {
2057                                         continue;
2058                                 }
2059                         }
2060
2061                         if(!mask_match(fname, mask, conn->case_sensitive)) {
2062                                 continue;
2063                         }
2064                                 
2065                         slprintf(fname,sizeof(fname)-1, "%s/%s",directory,dname);
2066
2067                         status = check_name(conn, fname);
2068                         if (!NT_STATUS_IS_OK(status)) {
2069                                 CloseDir(dir_hnd);
2070                                 return status;
2071                         }
2072
2073                         status = do_unlink(conn, fname, dirtype, can_defer);
2074                         if (!NT_STATUS_IS_OK(status)) {
2075                                 continue;
2076                         }
2077
2078                         count++;
2079                         DEBUG(3,("unlink_internals: succesful unlink [%s]\n",
2080                                  fname));
2081                 }
2082                 CloseDir(dir_hnd);
2083         }
2084         
2085         if (count == 0 && NT_STATUS_IS_OK(status)) {
2086                 status = map_nt_error_from_unix(errno);
2087         }
2088
2089         return status;
2090 }
2091
2092 /****************************************************************************
2093  Reply to a unlink
2094 ****************************************************************************/
2095
2096 int reply_unlink(connection_struct *conn, char *inbuf,char *outbuf, int dum_size, 
2097                  int dum_buffsize)
2098 {
2099         int outsize = 0;
2100         pstring name;
2101         uint32 dirtype;
2102         NTSTATUS status;
2103         BOOL path_contains_wcard = False;
2104
2105         START_PROFILE(SMBunlink);
2106
2107         dirtype = SVAL(inbuf,smb_vwv0);
2108         
2109         srvstr_get_path_wcard(inbuf, name, smb_buf(inbuf) + 1, sizeof(name), 0, STR_TERMINATE, &status, &path_contains_wcard);
2110         if (!NT_STATUS_IS_OK(status)) {
2111                 END_PROFILE(SMBunlink);
2112                 return ERROR_NT(status);
2113         }
2114
2115         status = resolve_dfspath_wcard(conn, SVAL(inbuf,smb_flg2) & FLAGS2_DFS_PATHNAMES, name, &path_contains_wcard);
2116         if (!NT_STATUS_IS_OK(status)) {
2117                 END_PROFILE(SMBunlink);
2118                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
2119                         return ERROR_BOTH(NT_STATUS_PATH_NOT_COVERED, ERRSRV, ERRbadpath);
2120                 }
2121                 return ERROR_NT(status);
2122         }
2123         
2124         DEBUG(3,("reply_unlink : %s\n",name));
2125         
2126         status = unlink_internals(conn, dirtype, name, path_contains_wcard,
2127                                   True);
2128         if (!NT_STATUS_IS_OK(status)) {
2129                 if (open_was_deferred(SVAL(inbuf,smb_mid))) {
2130                         /* We have re-scheduled this call. */
2131                         return -1;
2132                 }
2133                 return ERROR_NT(status);
2134         }
2135
2136         outsize = set_message(inbuf,outbuf,0,0,False);
2137   
2138         END_PROFILE(SMBunlink);
2139         return outsize;
2140 }
2141
2142 /****************************************************************************
2143  Fail for readbraw.
2144 ****************************************************************************/
2145
2146 static void fail_readraw(void)
2147 {
2148         pstring errstr;
2149         slprintf(errstr, sizeof(errstr)-1, "FAIL ! reply_readbraw: socket write fail (%s)",
2150                 strerror(errno) );
2151         exit_server_cleanly(errstr);
2152 }
2153
2154 /****************************************************************************
2155  Fake (read/write) sendfile. Returns -1 on read or write fail.
2156 ****************************************************************************/
2157
2158 static ssize_t fake_sendfile(files_struct *fsp, SMB_OFF_T startpos, size_t nread, char *buf, size_t bufsize)
2159 {
2160         size_t tosend = nread;
2161
2162         while (tosend > 0) {
2163                 ssize_t ret;
2164                 size_t cur_read;
2165
2166                 if (tosend > bufsize) {
2167                         cur_read = bufsize;
2168                 } else {
2169                         cur_read = tosend;
2170                 }
2171                 ret = read_file(fsp,buf,startpos,cur_read);
2172                 if (ret == -1) {
2173                         return -1;
2174                 }
2175
2176                 /* If we had a short read, fill with zeros. */
2177                 if (ret < cur_read) {
2178                         memset(buf, '\0', cur_read - ret);
2179                 }
2180
2181                 if (write_data(smbd_server_fd(),buf,cur_read) != cur_read) {
2182                         return -1;
2183                 }
2184                 tosend -= cur_read;
2185                 startpos += cur_read;
2186         }
2187
2188         return (ssize_t)nread;
2189 }
2190
2191 /****************************************************************************
2192  Use sendfile in readbraw.
2193 ****************************************************************************/
2194
2195 void send_file_readbraw(connection_struct *conn, files_struct *fsp, SMB_OFF_T startpos, size_t nread,
2196                 ssize_t mincount, char *outbuf, int out_buffsize)
2197 {
2198         ssize_t ret=0;
2199
2200 #if defined(WITH_SENDFILE)
2201         /*
2202          * We can only use sendfile on a non-chained packet 
2203          * but we can use on a non-oplocked file. tridge proved this
2204          * on a train in Germany :-). JRA.
2205          * reply_readbraw has already checked the length.
2206          */
2207
2208         if ( (chain_size == 0) && (nread > 0) &&
2209             (fsp->wcp == NULL) && lp_use_sendfile(SNUM(conn)) ) {
2210                 DATA_BLOB header;
2211
2212                 _smb_setlen(outbuf,nread);
2213                 header.data = (uint8 *)outbuf;
2214                 header.length = 4;
2215                 header.free = NULL;
2216
2217                 if ( SMB_VFS_SENDFILE( smbd_server_fd(), fsp, fsp->fh->fd, &header, startpos, nread) == -1) {
2218                         /* Returning ENOSYS means no data at all was sent. Do this as a normal read. */
2219                         if (errno == ENOSYS) {
2220                                 goto normal_readbraw;
2221                         }
2222
2223                         /*
2224                          * Special hack for broken Linux with no working sendfile. If we
2225                          * return EINTR we sent the header but not the rest of the data.
2226                          * Fake this up by doing read/write calls.
2227                          */
2228                         if (errno == EINTR) {
2229                                 /* Ensure we don't do this again. */
2230                                 set_use_sendfile(SNUM(conn), False);
2231                                 DEBUG(0,("send_file_readbraw: sendfile not available. Faking..\n"));
2232
2233                                 if (fake_sendfile(fsp, startpos, nread, outbuf + 4, out_buffsize - 4) == -1) {
2234                                         DEBUG(0,("send_file_readbraw: fake_sendfile failed for file %s (%s).\n",
2235                                                 fsp->fsp_name, strerror(errno) ));
2236                                         exit_server_cleanly("send_file_readbraw fake_sendfile failed");
2237                                 }
2238                                 return;
2239                         }
2240
2241                         DEBUG(0,("send_file_readbraw: sendfile failed for file %s (%s). Terminating\n",
2242                                 fsp->fsp_name, strerror(errno) ));
2243                         exit_server_cleanly("send_file_readbraw sendfile failed");
2244                 }
2245
2246                 return;
2247         }
2248 #endif
2249
2250 normal_readbraw:
2251
2252         if (nread > 0) {
2253                 ret = read_file(fsp,outbuf+4,startpos,nread);
2254 #if 0 /* mincount appears to be ignored in a W2K server. JRA. */
2255                 if (ret < mincount)
2256                         ret = 0;
2257 #else
2258                 if (ret < nread)
2259                         ret = 0;
2260 #endif
2261         }
2262
2263         _smb_setlen(outbuf,ret);
2264         if (write_data(smbd_server_fd(),outbuf,4+ret) != 4+ret)
2265                 fail_readraw();
2266 }
2267
2268 /****************************************************************************
2269  Reply to a readbraw (core+ protocol).
2270 ****************************************************************************/
2271
2272 int reply_readbraw(connection_struct *conn, char *inbuf, char *outbuf, int dum_size, int out_buffsize)
2273 {
2274         ssize_t maxcount,mincount;
2275         size_t nread = 0;
2276         SMB_OFF_T startpos;
2277         char *header = outbuf;
2278         files_struct *fsp;
2279         START_PROFILE(SMBreadbraw);
2280
2281         if (srv_is_signing_active()) {
2282                 exit_server_cleanly("reply_readbraw: SMB signing is active - raw reads/writes are disallowed.");
2283         }
2284
2285         /*
2286          * Special check if an oplock break has been issued
2287          * and the readraw request croses on the wire, we must
2288          * return a zero length response here.
2289          */
2290
2291         fsp = file_fsp(inbuf,smb_vwv0);
2292
2293         if (!FNUM_OK(fsp,conn) || !fsp->can_read) {
2294                 /*
2295                  * fsp could be NULL here so use the value from the packet. JRA.
2296                  */
2297                 DEBUG(3,("fnum %d not open in readbraw - cache prime?\n",(int)SVAL(inbuf,smb_vwv0)));
2298                 _smb_setlen(header,0);
2299                 if (write_data(smbd_server_fd(),header,4) != 4)
2300                         fail_readraw();
2301                 END_PROFILE(SMBreadbraw);
2302                 return(-1);
2303         }
2304
2305         CHECK_FSP(fsp,conn);
2306
2307         flush_write_cache(fsp, READRAW_FLUSH);
2308
2309         startpos = IVAL_TO_SMB_OFF_T(inbuf,smb_vwv1);
2310         if(CVAL(inbuf,smb_wct) == 10) {
2311                 /*
2312                  * This is a large offset (64 bit) read.
2313                  */
2314 #ifdef LARGE_SMB_OFF_T
2315
2316                 startpos |= (((SMB_OFF_T)IVAL(inbuf,smb_vwv8)) << 32);
2317
2318 #else /* !LARGE_SMB_OFF_T */
2319
2320                 /*
2321                  * Ensure we haven't been sent a >32 bit offset.
2322                  */
2323
2324                 if(IVAL(inbuf,smb_vwv8) != 0) {
2325                         DEBUG(0,("readbraw - large offset (%x << 32) used and we don't support \
2326 64 bit offsets.\n", (unsigned int)IVAL(inbuf,smb_vwv8) ));
2327                         _smb_setlen(header,0);
2328                         if (write_data(smbd_server_fd(),header,4) != 4)
2329                                 fail_readraw();
2330                         END_PROFILE(SMBreadbraw);
2331                         return(-1);
2332                 }
2333
2334 #endif /* LARGE_SMB_OFF_T */
2335
2336                 if(startpos < 0) {
2337                         DEBUG(0,("readbraw - negative 64 bit readraw offset (%.0f) !\n", (double)startpos ));
2338                         _smb_setlen(header,0);
2339                         if (write_data(smbd_server_fd(),header,4) != 4)
2340                                 fail_readraw();
2341                         END_PROFILE(SMBreadbraw);
2342                         return(-1);
2343                 }      
2344         }
2345         maxcount = (SVAL(inbuf,smb_vwv3) & 0xFFFF);
2346         mincount = (SVAL(inbuf,smb_vwv4) & 0xFFFF);
2347
2348         /* ensure we don't overrun the packet size */
2349         maxcount = MIN(65535,maxcount);
2350
2351         if (!is_locked(fsp,(uint32)SVAL(inbuf,smb_pid),(SMB_BIG_UINT)maxcount,(SMB_BIG_UINT)startpos, READ_LOCK)) {
2352                 SMB_STRUCT_STAT st;
2353                 SMB_OFF_T size = 0;
2354   
2355                 if (SMB_VFS_FSTAT(fsp,fsp->fh->fd,&st) == 0) {
2356                         size = st.st_size;
2357                 }
2358
2359                 if (startpos >= size) {
2360                         nread = 0;
2361                 } else {
2362                         nread = MIN(maxcount,(size - startpos));          
2363                 }
2364         }
2365
2366 #if 0 /* mincount appears to be ignored in a W2K server. JRA. */
2367         if (nread < mincount)
2368                 nread = 0;
2369 #endif
2370   
2371         DEBUG( 3, ( "readbraw fnum=%d start=%.0f max=%lu min=%lu nread=%lu\n", fsp->fnum, (double)startpos,
2372                                 (unsigned long)maxcount, (unsigned long)mincount, (unsigned long)nread ) );
2373   
2374         send_file_readbraw(conn, fsp, startpos, nread, mincount, outbuf, out_buffsize);
2375
2376         DEBUG(5,("readbraw finished\n"));
2377         END_PROFILE(SMBreadbraw);
2378         return -1;
2379 }
2380
2381 #undef DBGC_CLASS
2382 #define DBGC_CLASS DBGC_LOCKING
2383
2384 /****************************************************************************
2385  Reply to a lockread (core+ protocol).
2386 ****************************************************************************/
2387
2388 int reply_lockread(connection_struct *conn, char *inbuf,char *outbuf, int length, int dum_buffsiz)
2389 {
2390         ssize_t nread = -1;
2391         char *data;
2392         int outsize = 0;
2393         SMB_OFF_T startpos;
2394         size_t numtoread;
2395         NTSTATUS status;
2396         files_struct *fsp = file_fsp(inbuf,smb_vwv0);
2397         struct byte_range_lock *br_lck = NULL;
2398         START_PROFILE(SMBlockread);
2399
2400         CHECK_FSP(fsp,conn);
2401         if (!CHECK_READ(fsp,inbuf)) {
2402                 return(ERROR_DOS(ERRDOS,ERRbadaccess));
2403         }
2404
2405         release_level_2_oplocks_on_change(fsp);
2406
2407         numtoread = SVAL(inbuf,smb_vwv1);
2408         startpos = IVAL_TO_SMB_OFF_T(inbuf,smb_vwv2);
2409   
2410         outsize = set_message(inbuf,outbuf,5,3,True);
2411         numtoread = MIN(BUFFER_SIZE-outsize,numtoread);
2412         data = smb_buf(outbuf) + 3;
2413         
2414         /*
2415          * NB. Discovered by Menny Hamburger at Mainsoft. This is a core+
2416          * protocol request that predates the read/write lock concept. 
2417          * Thus instead of asking for a read lock here we need to ask
2418          * for a write lock. JRA.
2419          * Note that the requested lock size is unaffected by max_recv.
2420          */
2421         
2422         br_lck = do_lock(smbd_messaging_context(),
2423                         fsp,
2424                         (uint32)SVAL(inbuf,smb_pid), 
2425                         (SMB_BIG_UINT)numtoread,
2426                         (SMB_BIG_UINT)startpos,
2427                         WRITE_LOCK,
2428                         WINDOWS_LOCK,
2429                         False, /* Non-blocking lock. */
2430                         &status,
2431                         NULL);
2432         TALLOC_FREE(br_lck);
2433
2434         if (NT_STATUS_V(status)) {
2435                 END_PROFILE(SMBlockread);
2436                 return ERROR_NT(status);
2437         }
2438
2439         /*
2440          * However the requested READ size IS affected by max_recv. Insanity.... JRA.
2441          */
2442
2443         if (numtoread > max_recv) {
2444                 DEBUG(0,("reply_lockread: requested read size (%u) is greater than maximum allowed (%u). \
2445 Returning short read of maximum allowed for compatibility with Windows 2000.\n",
2446                         (unsigned int)numtoread, (unsigned int)max_recv ));
2447                 numtoread = MIN(numtoread,max_recv);
2448         }
2449         nread = read_file(fsp,data,startpos,numtoread);
2450
2451         if (nread < 0) {
2452                 END_PROFILE(SMBlockread);
2453                 return(UNIXERROR(ERRDOS,ERRnoaccess));
2454         }
2455         
2456         outsize += nread;
2457         SSVAL(outbuf,smb_vwv0,nread);
2458         SSVAL(outbuf,smb_vwv5,nread+3);
2459         SSVAL(smb_buf(outbuf),1,nread);
2460         
2461         DEBUG(3,("lockread fnum=%d num=%d nread=%d\n",
2462                  fsp->fnum, (int)numtoread, (int)nread));
2463
2464         END_PROFILE(SMBlockread);
2465         return(outsize);
2466 }
2467
2468 #undef DBGC_CLASS
2469 #define DBGC_CLASS DBGC_ALL
2470
2471 /****************************************************************************
2472  Reply to a read.
2473 ****************************************************************************/
2474
2475 int reply_read(connection_struct *conn, char *inbuf,char *outbuf, int size, int dum_buffsize)
2476 {
2477         size_t numtoread;
2478         ssize_t nread = 0;
2479         char *data;
2480         SMB_OFF_T startpos;
2481         int outsize = 0;
2482         files_struct *fsp = file_fsp(inbuf,smb_vwv0);
2483         START_PROFILE(SMBread);
2484
2485         CHECK_FSP(fsp,conn);
2486         if (!CHECK_READ(fsp,inbuf)) {
2487                 return(ERROR_DOS(ERRDOS,ERRbadaccess));
2488         }
2489
2490         numtoread = SVAL(inbuf,smb_vwv1);
2491         startpos = IVAL_TO_SMB_OFF_T(inbuf,smb_vwv2);
2492
2493         outsize = set_message(inbuf,outbuf,5,3,True);
2494         numtoread = MIN(BUFFER_SIZE-outsize,numtoread);
2495         /*
2496          * The requested read size cannot be greater than max_recv. JRA.
2497          */
2498         if (numtoread > max_recv) {
2499                 DEBUG(0,("reply_read: requested read size (%u) is greater than maximum allowed (%u). \
2500 Returning short read of maximum allowed for compatibility with Windows 2000.\n",
2501                         (unsigned int)numtoread, (unsigned int)max_recv ));
2502                 numtoread = MIN(numtoread,max_recv);
2503         }
2504
2505         data = smb_buf(outbuf) + 3;
2506   
2507         if (is_locked(fsp,(uint32)SVAL(inbuf,smb_pid),(SMB_BIG_UINT)numtoread,(SMB_BIG_UINT)startpos, READ_LOCK)) {
2508                 END_PROFILE(SMBread);
2509                 return ERROR_DOS(ERRDOS,ERRlock);
2510         }
2511
2512         if (numtoread > 0)
2513                 nread = read_file(fsp,data,startpos,numtoread);
2514
2515         if (nread < 0) {
2516                 END_PROFILE(SMBread);
2517                 return(UNIXERROR(ERRDOS,ERRnoaccess));
2518         }
2519   
2520         outsize += nread;
2521         SSVAL(outbuf,smb_vwv0,nread);
2522         SSVAL(outbuf,smb_vwv5,nread+3);
2523         SCVAL(smb_buf(outbuf),0,1);
2524         SSVAL(smb_buf(outbuf),1,nread);
2525   
2526         DEBUG( 3, ( "read fnum=%d num=%d nread=%d\n",
2527                 fsp->fnum, (int)numtoread, (int)nread ) );
2528
2529         END_PROFILE(SMBread);
2530         return(outsize);
2531 }
2532
2533 /****************************************************************************
2534  Setup readX header.
2535 ****************************************************************************/
2536
2537 static int setup_readX_header(char *inbuf, char *outbuf, size_t smb_maxcnt)
2538 {
2539         int outsize;
2540         char *data = smb_buf(outbuf);
2541
2542         SSVAL(outbuf,smb_vwv2,0xFFFF); /* Remaining - must be -1. */
2543         SSVAL(outbuf,smb_vwv5,smb_maxcnt);
2544         SSVAL(outbuf,smb_vwv6,smb_offset(data,outbuf));
2545         SSVAL(outbuf,smb_vwv7,(smb_maxcnt >> 16));
2546         SSVAL(smb_buf(outbuf),-2,smb_maxcnt);
2547         SCVAL(outbuf,smb_vwv0,0xFF);
2548         outsize = set_message(inbuf, outbuf,12,smb_maxcnt,False);
2549         /* Reset the outgoing length, set_message truncates at 0x1FFFF. */
2550         _smb_setlen_large(outbuf,(smb_size + 12*2 + smb_maxcnt - 4));
2551         return outsize;
2552 }
2553
2554 /****************************************************************************
2555  Reply to a read and X - possibly using sendfile.
2556 ****************************************************************************/
2557
2558 int send_file_readX(connection_struct *conn, char *inbuf,char *outbuf,int length, int len_outbuf,
2559                 files_struct *fsp, SMB_OFF_T startpos, size_t smb_maxcnt)
2560 {
2561         SMB_STRUCT_STAT sbuf;
2562         int outsize = 0;
2563         ssize_t nread = -1;
2564         char *data = smb_buf(outbuf);
2565
2566         if(SMB_VFS_FSTAT(fsp,fsp->fh->fd, &sbuf) == -1) {
2567                 return(UNIXERROR(ERRDOS,ERRnoaccess));
2568         }
2569
2570         if (startpos > sbuf.st_size) {
2571                 smb_maxcnt = 0;
2572         }
2573
2574         if (smb_maxcnt > (sbuf.st_size - startpos)) {
2575                 smb_maxcnt = (sbuf.st_size - startpos);
2576         }
2577
2578         if (smb_maxcnt == 0) {
2579                 goto normal_read;
2580         }
2581
2582 #if defined(WITH_SENDFILE)
2583         /*
2584          * We can only use sendfile on a non-chained packet 
2585          * but we can use on a non-oplocked file. tridge proved this
2586          * on a train in Germany :-). JRA.
2587          */
2588
2589         if ((chain_size == 0) && (CVAL(inbuf,smb_vwv0) == 0xFF) &&
2590             lp_use_sendfile(SNUM(conn)) && (fsp->wcp == NULL) ) {
2591                 DATA_BLOB header;
2592
2593                 /* 
2594                  * Set up the packet header before send. We
2595                  * assume here the sendfile will work (get the
2596                  * correct amount of data).
2597                  */
2598
2599                 setup_readX_header(inbuf,outbuf,smb_maxcnt);
2600                 set_message(inbuf,outbuf,12,smb_maxcnt,False);
2601                 header.data = (uint8 *)outbuf;
2602                 header.length = data - outbuf;
2603                 header.free = NULL;
2604
2605                 if ((nread = SMB_VFS_SENDFILE( smbd_server_fd(), fsp, fsp->fh->fd, &header, startpos, smb_maxcnt)) == -1) {
2606                         /* Returning ENOSYS means no data at all was sent. Do this as a normal read. */
2607                         if (errno == ENOSYS) {
2608                                 goto normal_read;
2609                         }
2610
2611                         /*
2612                          * Special hack for broken Linux with no working sendfile. If we
2613                          * return EINTR we sent the header but not the rest of the data.
2614                          * Fake this up by doing read/write calls.
2615                          */
2616
2617                         if (errno == EINTR) {
2618                                 /* Ensure we don't do this again. */
2619                                 set_use_sendfile(SNUM(conn), False);
2620                                 DEBUG(0,("send_file_readX: sendfile not available. Faking..\n"));
2621
2622                                 if ((nread = fake_sendfile(fsp, startpos, smb_maxcnt, data,
2623                                                         len_outbuf - (data-outbuf))) == -1) {
2624                                         DEBUG(0,("send_file_readX: fake_sendfile failed for file %s (%s).\n",
2625                                                 fsp->fsp_name, strerror(errno) ));
2626                                         exit_server_cleanly("send_file_readX: fake_sendfile failed");
2627                                 }
2628                                 DEBUG( 3, ( "send_file_readX: fake_sendfile fnum=%d max=%d nread=%d\n",
2629                                         fsp->fnum, (int)smb_maxcnt, (int)nread ) );
2630                                 /* Returning -1 here means successful sendfile. */
2631                                 return -1;
2632                         }
2633
2634                         DEBUG(0,("send_file_readX: sendfile failed for file %s (%s). Terminating\n",
2635                                 fsp->fsp_name, strerror(errno) ));
2636                         exit_server_cleanly("send_file_readX sendfile failed");
2637                 }
2638
2639                 DEBUG( 3, ( "send_file_readX: sendfile fnum=%d max=%d nread=%d\n",
2640                         fsp->fnum, (int)smb_maxcnt, (int)nread ) );
2641                 /* Returning -1 here means successful sendfile. */
2642                 return -1;
2643         }
2644
2645 #endif
2646
2647 normal_read:
2648
2649         if ((smb_maxcnt & 0xFF0000) > 0x10000) {
2650                 int sendlen = setup_readX_header(inbuf,outbuf,smb_maxcnt) - smb_maxcnt;
2651                 /* Send out the header. */
2652                 if (write_data(smbd_server_fd(),outbuf,sendlen) != sendlen) {
2653                         DEBUG(0,("send_file_readX: write_data failed for file %s (%s). Terminating\n",
2654                                 fsp->fsp_name, strerror(errno) ));
2655                         exit_server_cleanly("send_file_readX sendfile failed");
2656                 }
2657                 if ((nread = fake_sendfile(fsp, startpos, smb_maxcnt, data,
2658                                         len_outbuf - (data-outbuf))) == -1) {
2659                         DEBUG(0,("send_file_readX: fake_sendfile failed for file %s (%s).\n",
2660                                 fsp->fsp_name, strerror(errno) ));
2661                         exit_server_cleanly("send_file_readX: fake_sendfile failed");
2662                 }
2663                 return -1;
2664         } else {
2665                 nread = read_file(fsp,data,startpos,smb_maxcnt);
2666
2667                 if (nread < 0) {
2668                         return(UNIXERROR(ERRDOS,ERRnoaccess));
2669                 }
2670
2671                 outsize = setup_readX_header(inbuf, outbuf,nread);
2672
2673                 DEBUG( 3, ( "send_file_readX fnum=%d max=%d nread=%d\n",
2674                         fsp->fnum, (int)smb_maxcnt, (int)nread ) );
2675
2676                 /* Returning the number of bytes we want to send back - including header. */
2677                 return outsize;
2678         }
2679 }
2680
2681 /****************************************************************************
2682  Reply to a read and X.
2683 ****************************************************************************/
2684
2685 int reply_read_and_X(connection_struct *conn, char *inbuf,char *outbuf,int length,int bufsize)
2686 {
2687         files_struct *fsp = file_fsp(inbuf,smb_vwv2);
2688         SMB_OFF_T startpos = IVAL_TO_SMB_OFF_T(inbuf,smb_vwv3);
2689         ssize_t nread = -1;
2690         size_t smb_maxcnt = SVAL(inbuf,smb_vwv5);
2691         BOOL big_readX = False;
2692 #if 0
2693         size_t smb_mincnt = SVAL(inbuf,smb_vwv6);
2694 #endif
2695
2696         START_PROFILE(SMBreadX);
2697
2698         /* If it's an IPC, pass off the pipe handler. */
2699         if (IS_IPC(conn)) {
2700                 END_PROFILE(SMBreadX);
2701                 return reply_pipe_read_and_X(inbuf,outbuf,length,bufsize);
2702         }
2703
2704         CHECK_FSP(fsp,conn);
2705         if (!CHECK_READ(fsp,inbuf)) {
2706                 return(ERROR_DOS(ERRDOS,ERRbadaccess));
2707         }
2708
2709         set_message(inbuf,outbuf,12,0,True);
2710
2711         if (global_client_caps & CAP_LARGE_READX) {
2712                 size_t upper_size = SVAL(inbuf,smb_vwv7);
2713                 smb_maxcnt |= (upper_size<<16);
2714                 if (upper_size > 1) {
2715                         /* Can't do this on a chained packet. */
2716                         if ((CVAL(inbuf,smb_vwv0) != 0xFF)) {
2717                                 return ERROR_NT(NT_STATUS_NOT_SUPPORTED);
2718                         }
2719                         /* We currently don't do this on signed or sealed data. */
2720                         if (srv_is_signing_active() || srv_encryption_on()) {
2721                                 return ERROR_NT(NT_STATUS_NOT_SUPPORTED);
2722                         }
2723                         /* Is there room in the reply for this data ? */
2724                         if (smb_maxcnt > (0xFFFFFF - (smb_size -4 + 12*2)))  {
2725                                 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
2726                         }
2727                         big_readX = True;
2728                 }
2729         }
2730
2731         if(CVAL(inbuf,smb_wct) == 12) {
2732 #ifdef LARGE_SMB_OFF_T
2733                 /*
2734                  * This is a large offset (64 bit) read.
2735                  */
2736                 startpos |= (((SMB_OFF_T)IVAL(inbuf,smb_vwv10)) << 32);
2737
2738 #else /* !LARGE_SMB_OFF_T */
2739
2740                 /*
2741                  * Ensure we haven't been sent a >32 bit offset.
2742                  */
2743
2744                 if(IVAL(inbuf,smb_vwv10) != 0) {
2745                         DEBUG(0,("reply_read_and_X - large offset (%x << 32) used and we don't support \
2746 64 bit offsets.\n", (unsigned int)IVAL(inbuf,smb_vwv10) ));
2747                         END_PROFILE(SMBreadX);
2748                         return ERROR_DOS(ERRDOS,ERRbadaccess);
2749                 }
2750
2751 #endif /* LARGE_SMB_OFF_T */
2752
2753         }
2754
2755         if (is_locked(fsp,(uint32)SVAL(inbuf,smb_pid),(SMB_BIG_UINT)smb_maxcnt,(SMB_BIG_UINT)startpos, READ_LOCK)) {
2756                 END_PROFILE(SMBreadX);
2757                 return ERROR_DOS(ERRDOS,ERRlock);
2758         }
2759
2760         if (!big_readX && schedule_aio_read_and_X(conn, inbuf, outbuf, length, bufsize, fsp, startpos, smb_maxcnt)) {
2761                 END_PROFILE(SMBreadX);
2762                 return -1;
2763         }
2764
2765         nread = send_file_readX(conn, inbuf, outbuf, length, bufsize, fsp, startpos, smb_maxcnt);
2766         /* Only call chain_reply if not an error. */
2767         if (nread != -1 && SVAL(outbuf,smb_rcls) == 0) {
2768                 nread = chain_reply(inbuf,outbuf,length,bufsize);
2769         }
2770
2771         END_PROFILE(SMBreadX);
2772         return nread;
2773 }
2774
2775 /****************************************************************************
2776  Reply to a writebraw (core+ or LANMAN1.0 protocol).
2777 ****************************************************************************/
2778
2779 int reply_writebraw(connection_struct *conn, char *inbuf,char *outbuf, int size, int dum_buffsize)
2780 {
2781         ssize_t nwritten=0;
2782         ssize_t total_written=0;
2783         size_t numtowrite=0;
2784         size_t tcount;
2785         SMB_OFF_T startpos;
2786         char *data=NULL;
2787         BOOL write_through;
2788         files_struct *fsp = file_fsp(inbuf,smb_vwv0);
2789         int outsize = 0;
2790         START_PROFILE(SMBwritebraw);
2791
2792         if (srv_is_signing_active()) {
2793                 exit_server_cleanly("reply_writebraw: SMB signing is active - raw reads/writes are disallowed.");
2794         }
2795
2796         CHECK_FSP(fsp,conn);
2797         if (!CHECK_WRITE(fsp)) {
2798                 return(ERROR_DOS(ERRDOS,ERRbadaccess));
2799         }
2800   
2801         tcount = IVAL(inbuf,smb_vwv1);
2802         startpos = IVAL_TO_SMB_OFF_T(inbuf,smb_vwv3);
2803         write_through = BITSETW(inbuf+smb_vwv7,0);
2804
2805         /* We have to deal with slightly different formats depending
2806                 on whether we are using the core+ or lanman1.0 protocol */
2807
2808         if(Protocol <= PROTOCOL_COREPLUS) {
2809                 numtowrite = SVAL(smb_buf(inbuf),-2);
2810                 data = smb_buf(inbuf);
2811         } else {
2812                 numtowrite = SVAL(inbuf,smb_vwv10);
2813                 data = smb_base(inbuf) + SVAL(inbuf, smb_vwv11);
2814         }
2815
2816         /* force the error type */
2817         SCVAL(inbuf,smb_com,SMBwritec);
2818         SCVAL(outbuf,smb_com,SMBwritec);
2819
2820         if (is_locked(fsp,(uint32)SVAL(inbuf,smb_pid),(SMB_BIG_UINT)tcount,(SMB_BIG_UINT)startpos, WRITE_LOCK)) {
2821                 END_PROFILE(SMBwritebraw);
2822                 return(ERROR_DOS(ERRDOS,ERRlock));
2823         }
2824
2825         if (numtowrite>0)
2826                 nwritten = write_file(fsp,data,startpos,numtowrite);
2827   
2828         DEBUG(3,("writebraw1 fnum=%d start=%.0f num=%d wrote=%d sync=%d\n",
2829                 fsp->fnum, (double)startpos, (int)numtowrite, (int)nwritten, (int)write_through));
2830
2831         if (nwritten < (ssize_t)numtowrite)  {
2832                 END_PROFILE(SMBwritebraw);
2833                 return(UNIXERROR(ERRHRD,ERRdiskfull));
2834         }
2835
2836         total_written = nwritten;
2837
2838         /* Return a message to the redirector to tell it to send more bytes */
2839         SCVAL(outbuf,smb_com,SMBwritebraw);
2840         SSVALS(outbuf,smb_vwv0,-1);
2841         outsize = set_message(inbuf,outbuf,Protocol>PROTOCOL_COREPLUS?1:0,0,True);
2842         show_msg(outbuf);
2843         if (!send_smb(smbd_server_fd(),outbuf))
2844                 exit_server_cleanly("reply_writebraw: send_smb failed.");
2845   
2846         /* Now read the raw data into the buffer and write it */
2847         if (read_smb_length(smbd_server_fd(),inbuf,SMB_SECONDARY_WAIT) == -1) {
2848                 exit_server_cleanly("secondary writebraw failed");
2849         }
2850   
2851         /* Even though this is not an smb message, smb_len returns the generic length of an smb message */
2852         numtowrite = smb_len(inbuf);
2853
2854         /* Set up outbuf to return the correct return */
2855         outsize = set_message(inbuf,outbuf,1,0,True);
2856         SCVAL(outbuf,smb_com,SMBwritec);
2857
2858         if (numtowrite != 0) {
2859
2860                 if (numtowrite > BUFFER_SIZE) {
2861                         DEBUG(0,("reply_writebraw: Oversize secondary write raw requested (%u). Terminating\n",
2862                                 (unsigned int)numtowrite ));
2863                         exit_server_cleanly("secondary writebraw failed");
2864                 }
2865
2866                 if (tcount > nwritten+numtowrite) {
2867                         DEBUG(3,("Client overestimated the write %d %d %d\n",
2868                                 (int)tcount,(int)nwritten,(int)numtowrite));
2869                 }
2870
2871                 if (read_data( smbd_server_fd(), inbuf+4, numtowrite) != numtowrite ) {
2872                         DEBUG(0,("reply_writebraw: Oversize secondary write raw read failed (%s). Terminating\n",
2873                                 strerror(errno) ));
2874                         exit_server_cleanly("secondary writebraw failed");
2875                 }
2876
2877                 nwritten = write_file(fsp,inbuf+4,startpos+nwritten,numtowrite);
2878                 if (nwritten == -1) {
2879                         END_PROFILE(SMBwritebraw);
2880                         return(UNIXERROR(ERRHRD,ERRdiskfull));
2881                 }
2882
2883                 if (nwritten < (ssize_t)numtowrite) {
2884                         SCVAL(outbuf,smb_rcls,ERRHRD);
2885                         SSVAL(outbuf,smb_err,ERRdiskfull);      
2886                 }
2887
2888                 if (nwritten > 0)
2889                         total_written += nwritten;
2890         }
2891  
2892         SSVAL(outbuf,smb_vwv0,total_written);
2893
2894         sync_file(conn, fsp, write_through);
2895
2896         DEBUG(3,("writebraw2 fnum=%d start=%.0f num=%d wrote=%d\n",
2897                 fsp->fnum, (double)startpos, (int)numtowrite,(int)total_written));
2898
2899         /* we won't return a status if write through is not selected - this follows what WfWg does */
2900         END_PROFILE(SMBwritebraw);
2901         if (!write_through && total_written==tcount) {
2902
2903 #if RABBIT_PELLET_FIX
2904                 /*
2905                  * Fix for "rabbit pellet" mode, trigger an early TCP ack by
2906                  * sending a SMBkeepalive. Thanks to DaveCB at Sun for this. JRA.
2907                  */
2908                 if (!send_keepalive(smbd_server_fd()))
2909                         exit_server_cleanly("reply_writebraw: send of keepalive failed");
2910 #endif
2911                 return(-1);
2912         }
2913
2914         return(outsize);
2915 }
2916
2917 #undef DBGC_CLASS
2918 #define DBGC_CLASS DBGC_LOCKING
2919
2920 /****************************************************************************
2921  Reply to a writeunlock (core+).
2922 ****************************************************************************/
2923
2924 int reply_writeunlock(connection_struct *conn, char *inbuf,char *outbuf, 
2925                       int size, int dum_buffsize)
2926 {
2927         ssize_t nwritten = -1;
2928         size_t numtowrite;
2929         SMB_OFF_T startpos;
2930         char *data;
2931         NTSTATUS status = NT_STATUS_OK;
2932         files_struct *fsp = file_fsp(inbuf,smb_vwv0);
2933         int outsize = 0;
2934         START_PROFILE(SMBwriteunlock);
2935         
2936         CHECK_FSP(fsp,conn);
2937         if (!CHECK_WRITE(fsp)) {
2938                 return(ERROR_DOS(ERRDOS,ERRbadaccess));
2939         }
2940
2941         numtowrite = SVAL(inbuf,smb_vwv1);
2942         startpos = IVAL_TO_SMB_OFF_T(inbuf,smb_vwv2);
2943         data = smb_buf(inbuf) + 3;
2944   
2945         if (numtowrite && is_locked(fsp,(uint32)SVAL(inbuf,smb_pid),(SMB_BIG_UINT)numtowrite,(SMB_BIG_UINT)startpos, WRITE_LOCK)) {
2946                 END_PROFILE(SMBwriteunlock);
2947                 return ERROR_DOS(ERRDOS,ERRlock);
2948         }
2949
2950         /* The special X/Open SMB protocol handling of
2951            zero length writes is *NOT* done for
2952            this call */
2953         if(numtowrite == 0) {
2954                 nwritten = 0;
2955         } else {
2956                 nwritten = write_file(fsp,data,startpos,numtowrite);
2957         }
2958   
2959         sync_file(conn, fsp, False /* write through */);
2960
2961         if(((nwritten == 0) && (numtowrite != 0))||(nwritten < 0)) {
2962                 END_PROFILE(SMBwriteunlock);
2963                 return(UNIXERROR(ERRHRD,ERRdiskfull));
2964         }
2965
2966         if (numtowrite) {
2967                 status = do_unlock(smbd_messaging_context(),
2968                                 fsp,
2969                                 (uint32)SVAL(inbuf,smb_pid),
2970                                 (SMB_BIG_UINT)numtowrite, 
2971                                 (SMB_BIG_UINT)startpos,
2972                                 WINDOWS_LOCK);
2973
2974                 if (NT_STATUS_V(status)) {
2975                         END_PROFILE(SMBwriteunlock);
2976                         return ERROR_NT(status);
2977                 }
2978         }
2979         
2980         outsize = set_message(inbuf,outbuf,1,0,True);
2981         
2982         SSVAL(outbuf,smb_vwv0,nwritten);
2983         
2984         DEBUG(3,("writeunlock fnum=%d num=%d wrote=%d\n",
2985                  fsp->fnum, (int)numtowrite, (int)nwritten));
2986         
2987         END_PROFILE(SMBwriteunlock);
2988         return outsize;
2989 }
2990
2991 #undef DBGC_CLASS
2992 #define DBGC_CLASS DBGC_ALL
2993
2994 /****************************************************************************
2995  Reply to a write.
2996 ****************************************************************************/
2997
2998 int reply_write(connection_struct *conn, char *inbuf,char *outbuf,int size,int dum_buffsize)
2999 {
3000         size_t numtowrite;
3001         ssize_t nwritten = -1;
3002         SMB_OFF_T startpos;
3003         char *data;
3004         files_struct *fsp = file_fsp(inbuf,smb_vwv0);
3005         int outsize = 0;
3006         START_PROFILE(SMBwrite);
3007
3008         /* If it's an IPC, pass off the pipe handler. */
3009         if (IS_IPC(conn)) {
3010                 END_PROFILE(SMBwrite);
3011                 return reply_pipe_write(inbuf,outbuf,size,dum_buffsize);
3012         }
3013
3014         CHECK_FSP(fsp,conn);
3015         if (!CHECK_WRITE(fsp)) {
3016                 return(ERROR_DOS(ERRDOS,ERRbadaccess));
3017         }
3018
3019         numtowrite = SVAL(inbuf,smb_vwv1);
3020         startpos = IVAL_TO_SMB_OFF_T(inbuf,smb_vwv2);
3021         data = smb_buf(inbuf) + 3;
3022   
3023         if (is_locked(fsp,(uint32)SVAL(inbuf,smb_pid),(SMB_BIG_UINT)numtowrite,(SMB_BIG_UINT)startpos, WRITE_LOCK)) {
3024                 END_PROFILE(SMBwrite);
3025                 return ERROR_DOS(ERRDOS,ERRlock);
3026         }
3027
3028         /*
3029          * X/Open SMB protocol says that if smb_vwv1 is
3030          * zero then the file size should be extended or
3031          * truncated to the size given in smb_vwv[2-3].
3032          */
3033
3034         if(numtowrite == 0) {
3035                 /*
3036                  * This is actually an allocate call, and set EOF. JRA.
3037                  */
3038                 nwritten = vfs_allocate_file_space(fsp, (SMB_OFF_T)startpos);
3039                 if (nwritten < 0) {
3040                         END_PROFILE(SMBwrite);
3041                         return ERROR_NT(NT_STATUS_DISK_FULL);
3042                 }
3043                 nwritten = vfs_set_filelen(fsp, (SMB_OFF_T)startpos);
3044                 if (nwritten < 0) {
3045                         END_PROFILE(SMBwrite);
3046                         return ERROR_NT(NT_STATUS_DISK_FULL);
3047                 }
3048         } else
3049                 nwritten = write_file(fsp,data,startpos,numtowrite);
3050   
3051         sync_file(conn, fsp, False);
3052
3053         if(((nwritten == 0) && (numtowrite != 0))||(nwritten < 0)) {
3054                 END_PROFILE(SMBwrite);
3055                 return(UNIXERROR(ERRHRD,ERRdiskfull));
3056         }
3057
3058         outsize = set_message(inbuf,outbuf,1,0,True);
3059   
3060         SSVAL(outbuf,smb_vwv0,nwritten);
3061
3062         if (nwritten < (ssize_t)numtowrite) {
3063                 SCVAL(outbuf,smb_rcls,ERRHRD);
3064                 SSVAL(outbuf,smb_err,ERRdiskfull);      
3065         }
3066   
3067         DEBUG(3,("write fnum=%d num=%d wrote=%d\n", fsp->fnum, (int)numtowrite, (int)nwritten));
3068
3069         END_PROFILE(SMBwrite);
3070         return(outsize);
3071 }
3072
3073 /****************************************************************************
3074  Reply to a write and X.
3075 ****************************************************************************/
3076
3077 int reply_write_and_X(connection_struct *conn, char *inbuf,char *outbuf,int length,int bufsize)
3078 {
3079         files_struct *fsp = file_fsp(inbuf,smb_vwv2);
3080         SMB_OFF_T startpos = IVAL_TO_SMB_OFF_T(inbuf,smb_vwv3);
3081         size_t numtowrite = SVAL(inbuf,smb_vwv10);
3082         BOOL write_through = BITSETW(inbuf+smb_vwv7,0);
3083         ssize_t nwritten = -1;
3084         unsigned int smb_doff = SVAL(inbuf,smb_vwv11);
3085         unsigned int smblen = smb_len(inbuf);
3086         char *data;
3087         BOOL large_writeX = ((CVAL(inbuf,smb_wct) == 14) && (smblen > 0xFFFF));
3088         START_PROFILE(SMBwriteX);
3089
3090         /* If it's an IPC, pass off the pipe handler. */
3091         if (IS_IPC(conn)) {
3092                 END_PROFILE(SMBwriteX);
3093                 return reply_pipe_write_and_X(inbuf,outbuf,length,bufsize);
3094         }
3095
3096         CHECK_FSP(fsp,conn);
3097         if (!CHECK_WRITE(fsp)) {
3098                 return(ERROR_DOS(ERRDOS,ERRbadaccess));
3099         }
3100
3101         set_message(inbuf,outbuf,6,0,True);
3102   
3103         /* Deal with possible LARGE_WRITEX */
3104         if (large_writeX) {
3105                 numtowrite |= ((((size_t)SVAL(inbuf,smb_vwv9)) & 1 )<<16);
3106         }
3107
3108         if(smb_doff > smblen || (smb_doff + numtowrite > smblen)) {
3109                 END_PROFILE(SMBwriteX);
3110                 return ERROR_DOS(ERRDOS,ERRbadmem);
3111         }
3112
3113         data = smb_base(inbuf) + smb_doff;
3114
3115         if(CVAL(inbuf,smb_wct) == 14) {
3116 #ifdef LARGE_SMB_OFF_T
3117                 /*
3118                  * This is a large offset (64 bit) write.
3119                  */
3120                 startpos |= (((SMB_OFF_T)IVAL(inbuf,smb_vwv12)) << 32);
3121
3122 #else /* !LARGE_SMB_OFF_T */
3123
3124                 /*
3125                  * Ensure we haven't been sent a >32 bit offset.
3126                  */
3127
3128                 if(IVAL(inbuf,smb_vwv12) != 0) {
3129                         DEBUG(0,("reply_write_and_X - large offset (%x << 32) used and we don't support \
3130 64 bit offsets.\n", (unsigned int)IVAL(inbuf,smb_vwv12) ));
3131                         END_PROFILE(SMBwriteX);
3132                         return ERROR_DOS(ERRDOS,ERRbadaccess);
3133                 }
3134
3135 #endif /* LARGE_SMB_OFF_T */
3136         }
3137
3138         if (is_locked(fsp,(uint32)SVAL(inbuf,smb_pid),(SMB_BIG_UINT)numtowrite,(SMB_BIG_UINT)startpos, WRITE_LOCK)) {
3139                 END_PROFILE(SMBwriteX);
3140                 return ERROR_DOS(ERRDOS,ERRlock);
3141         }
3142
3143         /* X/Open SMB protocol says that, unlike SMBwrite
3144         if the length is zero then NO truncation is
3145         done, just a write of zero. To truncate a file,
3146         use SMBwrite. */
3147
3148         if(numtowrite == 0) {
3149                 nwritten = 0;
3150         } else {
3151
3152                 if (schedule_aio_write_and_X(conn, inbuf, outbuf, length, bufsize,
3153                                         fsp,data,startpos,numtowrite)) {
3154                         END_PROFILE(SMBwriteX);
3155                         return -1;
3156                 }
3157
3158                 nwritten = write_file(fsp,data,startpos,numtowrite);
3159         }
3160   
3161         if(((nwritten == 0) && (numtowrite != 0))||(nwritten < 0)) {
3162                 END_PROFILE(SMBwriteX);
3163                 return(UNIXERROR(ERRHRD,ERRdiskfull));
3164         }
3165
3166         SSVAL(outbuf,smb_vwv2,nwritten);
3167         if (large_writeX)
3168                 SSVAL(outbuf,smb_vwv4,(nwritten>>16)&1);
3169
3170         if (nwritten < (ssize_t)numtowrite) {
3171                 SCVAL(outbuf,smb_rcls,ERRHRD);
3172                 SSVAL(outbuf,smb_err,ERRdiskfull);      
3173         }
3174
3175         DEBUG(3,("writeX fnum=%d num=%d wrote=%d\n",
3176                 fsp->fnum, (int)numtowrite, (int)nwritten));
3177
3178         sync_file(conn, fsp, write_through);
3179
3180         END_PROFILE(SMBwriteX);
3181         return chain_reply(inbuf,outbuf,length,bufsize);
3182 }
3183
3184 /****************************************************************************
3185  Reply to a lseek.
3186 ****************************************************************************/
3187
3188 int reply_lseek(connection_struct *conn, char *inbuf,char *outbuf, int size, int dum_buffsize)
3189 {
3190         SMB_OFF_T startpos;
3191         SMB_OFF_T res= -1;
3192         int mode,umode;
3193         int outsize = 0;
3194         files_struct *fsp = file_fsp(inbuf,smb_vwv0);
3195         START_PROFILE(SMBlseek);
3196
3197         CHECK_FSP(fsp,conn);
3198
3199         flush_write_cache(fsp, SEEK_FLUSH);
3200
3201         mode = SVAL(inbuf,smb_vwv1) & 3;
3202         /* NB. This doesn't use IVAL_TO_SMB_OFF_T as startpos can be signed in this case. */
3203         startpos = (SMB_OFF_T)IVALS(inbuf,smb_vwv2);
3204
3205         switch (mode) {
3206                 case 0:
3207                         umode = SEEK_SET;
3208                         res = startpos;
3209                         break;
3210                 case 1:
3211                         umode = SEEK_CUR;
3212                         res = fsp->fh->pos + startpos;
3213                         break;
3214                 case 2:
3215                         umode = SEEK_END;
3216                         break;
3217                 default:
3218                         umode = SEEK_SET;
3219                         res = startpos;
3220                         break;
3221         }
3222
3223         if (umode == SEEK_END) {
3224                 if((res = SMB_VFS_LSEEK(fsp,fsp->fh->fd,startpos,umode)) == -1) {
3225                         if(errno == EINVAL) {
3226                                 SMB_OFF_T current_pos = startpos;
3227                                 SMB_STRUCT_STAT sbuf;
3228
3229                                 if(SMB_VFS_FSTAT(fsp,fsp->fh->fd, &sbuf) == -1) {
3230                                         END_PROFILE(SMBlseek);
3231                                         return(UNIXERROR(ERRDOS,ERRnoaccess));
3232                                 }
3233
3234                                 current_pos += sbuf.st_size;
3235                                 if(current_pos < 0)
3236                                         res = SMB_VFS_LSEEK(fsp,fsp->fh->fd,0,SEEK_SET);
3237                         }
3238                 }
3239
3240                 if(res == -1) {
3241                         END_PROFILE(SMBlseek);
3242                         return(UNIXERROR(ERRDOS,ERRnoaccess));
3243                 }
3244         }
3245
3246         fsp->fh->pos = res;
3247   
3248         outsize = set_message(inbuf,outbuf,2,0,True);
3249         SIVAL(outbuf,smb_vwv0,res);
3250   
3251         DEBUG(3,("lseek fnum=%d ofs=%.0f newpos = %.0f mode=%d\n",
3252                 fsp->fnum, (double)startpos, (double)res, mode));
3253
3254         END_PROFILE(SMBlseek);
3255         return(outsize);
3256 }
3257
3258 /****************************************************************************
3259  Reply to a flush.
3260 ****************************************************************************/
3261
3262 int reply_flush(connection_struct *conn, char *inbuf,char *outbuf, int size, int dum_buffsize)
3263 {
3264         int outsize = set_message(inbuf,outbuf,0,0,False);
3265         uint16 fnum = SVAL(inbuf,smb_vwv0);
3266         files_struct *fsp = file_fsp(inbuf,smb_vwv0);
3267         START_PROFILE(SMBflush);
3268
3269         if (fnum != 0xFFFF)
3270                 CHECK_FSP(fsp,conn);
3271         
3272         if (!fsp) {
3273                 file_sync_all(conn);
3274         } else {
3275                 sync_file(conn,fsp, True);
3276         }
3277         
3278         DEBUG(3,("flush\n"));
3279         END_PROFILE(SMBflush);
3280         return(outsize);
3281 }
3282
3283 /****************************************************************************
3284  Reply to a exit.
3285  conn POINTER CAN BE NULL HERE !
3286 ****************************************************************************/
3287
3288 int reply_exit(connection_struct *conn, 
3289                char *inbuf,char *outbuf, int dum_size, int dum_buffsize)
3290 {
3291         int outsize;
3292         START_PROFILE(SMBexit);
3293
3294         file_close_pid(SVAL(inbuf,smb_pid),SVAL(inbuf,smb_uid));
3295
3296         outsize = set_message(inbuf,outbuf,0,0,False);
3297
3298         DEBUG(3,("exit\n"));
3299
3300         END_PROFILE(SMBexit);
3301         return(outsize);
3302 }
3303
3304 /****************************************************************************
3305  Reply to a close - has to deal with closing a directory opened by NT SMB's.
3306 ****************************************************************************/
3307
3308 int reply_close(connection_struct *conn, char *inbuf,char *outbuf, int size,
3309                 int dum_buffsize)
3310 {
3311         NTSTATUS status = NT_STATUS_OK;
3312         int outsize = 0;
3313         files_struct *fsp = NULL;
3314         START_PROFILE(SMBclose);
3315
3316         outsize = set_message(inbuf,outbuf,0,0,False);
3317
3318         /* If it's an IPC, pass off to the pipe handler. */
3319         if (IS_IPC(conn)) {
3320                 END_PROFILE(SMBclose);
3321                 return reply_pipe_close(conn, inbuf,outbuf);
3322         }
3323
3324         fsp = file_fsp(inbuf,smb_vwv0);
3325
3326         /*
3327          * We can only use CHECK_FSP if we know it's not a directory.
3328          */
3329
3330         if(!fsp || (fsp->conn != conn) || (fsp->vuid != current_user.vuid)) {
3331                 END_PROFILE(SMBclose);
3332                 return ERROR_DOS(ERRDOS,ERRbadfid);
3333         }
3334
3335         if(fsp->is_directory) {
3336                 /*
3337                  * Special case - close NT SMB directory handle.
3338                  */
3339                 DEBUG(3,("close directory fnum=%d\n", fsp->fnum));
3340                 status = close_file(fsp,NORMAL_CLOSE);
3341         } else {
3342                 /*
3343                  * Close ordinary file.
3344                  */
3345
3346                 DEBUG(3,("close fd=%d fnum=%d (numopen=%d)\n",
3347                          fsp->fh->fd, fsp->fnum,
3348                          conn->num_files_open));
3349  
3350                 /*
3351                  * Take care of any time sent in the close.
3352                  */
3353
3354                 fsp_set_pending_modtime(fsp,
3355                                 convert_time_t_to_timespec(srv_make_unix_date3(inbuf+smb_vwv1)));
3356
3357                 /*
3358                  * close_file() returns the unix errno if an error
3359                  * was detected on close - normally this is due to
3360                  * a disk full error. If not then it was probably an I/O error.
3361                  */
3362  
3363                 status = close_file(fsp,NORMAL_CLOSE);
3364         }  
3365
3366         if(!NT_STATUS_IS_OK(status)) {
3367                 END_PROFILE(SMBclose);
3368                 return ERROR_NT(status);
3369         }
3370
3371         END_PROFILE(SMBclose);
3372         return(outsize);
3373 }
3374
3375 /****************************************************************************
3376  Reply to a writeclose (Core+ protocol).
3377 ****************************************************************************/
3378
3379 int reply_writeclose(connection_struct *conn,
3380                      char *inbuf,char *outbuf, int size, int dum_buffsize)
3381 {
3382         size_t numtowrite;
3383         ssize_t nwritten = -1;
3384         int outsize = 0;
3385         NTSTATUS close_status = NT_STATUS_OK;
3386         SMB_OFF_T startpos;
3387         char *data;
3388         struct timespec mtime;
3389         files_struct *fsp = file_fsp(inbuf,smb_vwv0);
3390         START_PROFILE(SMBwriteclose);
3391
3392         CHECK_FSP(fsp,conn);
3393         if (!CHECK_WRITE(fsp)) {
3394                 return(ERROR_DOS(ERRDOS,ERRbadaccess));
3395         }
3396
3397         numtowrite = SVAL(inbuf,smb_vwv1);
3398         startpos = IVAL_TO_SMB_OFF_T(inbuf,smb_vwv2);
3399         mtime = convert_time_t_to_timespec(srv_make_unix_date3(inbuf+smb_vwv4));
3400         data = smb_buf(inbuf) + 1;
3401   
3402         if (numtowrite && is_locked(fsp,(uint32)SVAL(inbuf,smb_pid),(SMB_BIG_UINT)numtowrite,(SMB_BIG_UINT)startpos, WRITE_LOCK)) {
3403                 END_PROFILE(SMBwriteclose);
3404                 return ERROR_DOS(ERRDOS,ERRlock);
3405         }
3406   
3407         nwritten = write_file(fsp,data,startpos,numtowrite);
3408
3409         set_filetime(conn, fsp->fsp_name, mtime);
3410   
3411         /*
3412          * More insanity. W2K only closes the file if writelen > 0.
3413          * JRA.
3414          */
3415
3416         if (numtowrite) {
3417                 DEBUG(3,("reply_writeclose: zero length write doesn't close file %s\n",
3418                         fsp->fsp_name ));
3419                 close_status = close_file(fsp,NORMAL_CLOSE);
3420         }
3421
3422         DEBUG(3,("writeclose fnum=%d num=%d wrote=%d (numopen=%d)\n",
3423                  fsp->fnum, (int)numtowrite, (int)nwritten,
3424                  conn->num_files_open));
3425   
3426         if(((nwritten == 0) && (numtowrite != 0))||(nwritten < 0)) {
3427                 END_PROFILE(SMBwriteclose);
3428                 return(UNIXERROR(ERRHRD,ERRdiskfull));
3429         }
3430  
3431         if(!NT_STATUS_IS_OK(close_status)) {
3432                 END_PROFILE(SMBwriteclose);
3433                 return ERROR_NT(close_status);
3434         }
3435  
3436         outsize = set_message(inbuf,outbuf,1,0,True);
3437   
3438         SSVAL(outbuf,smb_vwv0,nwritten);
3439         END_PROFILE(SMBwriteclose);
3440         return(outsize);
3441 }
3442
3443 #undef DBGC_CLASS
3444 #define DBGC_CLASS DBGC_LOCKING
3445
3446 /****************************************************************************
3447  Reply to a lock.
3448 ****************************************************************************/
3449
3450 int reply_lock(connection_struct *conn,
3451                char *inbuf,char *outbuf, int length, int dum_buffsize)
3452 {
3453         int outsize = set_message(inbuf,outbuf,0,0,False);
3454         SMB_BIG_UINT count,offset;
3455         NTSTATUS status;
3456         files_struct *fsp = file_fsp(inbuf,smb_vwv0);
3457         struct byte_range_lock *br_lck = NULL;
3458
3459         START_PROFILE(SMBlock);
3460
3461         CHECK_FSP(fsp,conn);
3462
3463         release_level_2_oplocks_on_change(fsp);
3464
3465         count = (SMB_BIG_UINT)IVAL(inbuf,smb_vwv1);
3466         offset = (SMB_BIG_UINT)IVAL(inbuf,smb_vwv3);
3467
3468         DEBUG(3,("lock fd=%d fnum=%d offset=%.0f count=%.0f\n",
3469                  fsp->fh->fd, fsp->fnum, (double)offset, (double)count));
3470
3471         br_lck = do_lock(smbd_messaging_context(),
3472                         fsp,
3473                         (uint32)SVAL(inbuf,smb_pid),
3474                         count,
3475                         offset,
3476                         WRITE_LOCK,
3477                         WINDOWS_LOCK,
3478                         False, /* Non-blocking lock. */
3479                         &status,
3480                         NULL);
3481
3482         TALLOC_FREE(br_lck);
3483
3484         if (NT_STATUS_V(status)) {
3485                 END_PROFILE(SMBlock);
3486                 return ERROR_NT(status);
3487         }
3488
3489         END_PROFILE(SMBlock);
3490         return(outsize);
3491 }
3492
3493 /****************************************************************************
3494  Reply to a unlock.
3495 ****************************************************************************/
3496
3497 int reply_unlock(connection_struct *conn, char *inbuf,char *outbuf, int size, 
3498                  int dum_buffsize)
3499 {
3500         int outsize = set_message(inbuf,outbuf,0,0,False);
3501         SMB_BIG_UINT count,offset;
3502         NTSTATUS status;
3503         files_struct *fsp = file_fsp(inbuf,smb_vwv0);
3504         START_PROFILE(SMBunlock);
3505
3506         CHECK_FSP(fsp,conn);
3507         
3508         count = (SMB_BIG_UINT)IVAL(inbuf,smb_vwv1);
3509         offset = (SMB_BIG_UINT)IVAL(inbuf,smb_vwv3);
3510         
3511         status = do_unlock(smbd_messaging_context(),
3512                         fsp,
3513                         (uint32)SVAL(inbuf,smb_pid),
3514                         count,
3515                         offset,
3516                         WINDOWS_LOCK);
3517
3518         if (NT_STATUS_V(status)) {
3519                 END_PROFILE(SMBunlock);
3520                 return ERROR_NT(status);
3521         }
3522
3523         DEBUG( 3, ( "unlock fd=%d fnum=%d offset=%.0f count=%.0f\n",
3524                     fsp->fh->fd, fsp->fnum, (double)offset, (double)count ) );
3525         
3526         END_PROFILE(SMBunlock);
3527         return(outsize);
3528 }
3529
3530 #undef DBGC_CLASS
3531 #define DBGC_CLASS DBGC_ALL
3532
3533 /****************************************************************************
3534  Reply to a tdis.
3535  conn POINTER CAN BE NULL HERE !
3536 ****************************************************************************/
3537
3538 int reply_tdis(connection_struct *conn, 
3539                char *inbuf,char *outbuf, int dum_size, int dum_buffsize)
3540 {
3541         int outsize = set_message(inbuf,outbuf,0,0,False);
3542         uint16 vuid;
3543         START_PROFILE(SMBtdis);
3544
3545         vuid = SVAL(inbuf,smb_uid);
3546
3547         if (!conn) {
3548                 DEBUG(4,("Invalid connection in tdis\n"));
3549                 END_PROFILE(SMBtdis);
3550                 return ERROR_DOS(ERRSRV,ERRinvnid);
3551         }
3552
3553         conn->used = False;
3554
3555         close_cnum(conn,vuid);
3556   
3557         END_PROFILE(SMBtdis);
3558         return outsize;
3559 }
3560
3561 /****************************************************************************
3562  Reply to a echo.
3563  conn POINTER CAN BE NULL HERE !
3564 ****************************************************************************/
3565
3566 int reply_echo(connection_struct *conn,
3567                char *inbuf,char *outbuf, int dum_size, int dum_buffsize)
3568 {
3569         int smb_reverb = SVAL(inbuf,smb_vwv0);
3570         int seq_num;
3571         unsigned int data_len = smb_buflen(inbuf);
3572         int outsize = set_message(inbuf,outbuf,1,data_len,True);
3573         START_PROFILE(SMBecho);
3574
3575         if (data_len > BUFFER_SIZE) {
3576                 DEBUG(0,("reply_echo: data_len too large.\n"));
3577                 END_PROFILE(SMBecho);
3578                 return -1;
3579         }
3580
3581         /* copy any incoming data back out */
3582         if (data_len > 0)
3583                 memcpy(smb_buf(outbuf),smb_buf(inbuf),data_len);
3584
3585         if (smb_reverb > 100) {
3586                 DEBUG(0,("large reverb (%d)?? Setting to 100\n",smb_reverb));
3587                 smb_reverb = 100;
3588         }
3589
3590         for (seq_num =1 ; seq_num <= smb_reverb ; seq_num++) {
3591                 SSVAL(outbuf,smb_vwv0,seq_num);
3592
3593                 smb_setlen(inbuf,outbuf,outsize - 4);
3594
3595                 show_msg(outbuf);
3596                 if (!send_smb(smbd_server_fd(),outbuf))
3597                         exit_server_cleanly("reply_echo: send_smb failed.");
3598         }
3599
3600         DEBUG(3,("echo %d times\n", smb_reverb));
3601
3602         smb_echo_count++;
3603
3604         END_PROFILE(SMBecho);
3605         return -1;
3606 }
3607
3608 /****************************************************************************
3609  Reply to a printopen.
3610 ****************************************************************************/
3611
3612 int reply_printopen(connection_struct *conn, 
3613                     char *inbuf,char *outbuf, int dum_size, int dum_buffsize)
3614 {
3615         int outsize = 0;
3616         files_struct *fsp;
3617         NTSTATUS status;
3618         
3619         START_PROFILE(SMBsplopen);
3620         
3621         if (!CAN_PRINT(conn)) {
3622                 END_PROFILE(SMBsplopen);
3623                 return ERROR_DOS(ERRDOS,ERRnoaccess);
3624         }
3625
3626         /* Open for exclusive use, write only. */
3627         status = print_fsp_open(conn, NULL, &fsp);
3628
3629         if (!NT_STATUS_IS_OK(status)) {
3630                 END_PROFILE(SMBsplopen);
3631                 return(ERROR_NT(status));
3632         }
3633
3634         outsize = set_message(inbuf,outbuf,1,0,True);
3635         SSVAL(outbuf,smb_vwv0,fsp->fnum);
3636