s3: Modify direct callers of open_file_ntcreate and open_directory to call SMB_VFS_CR...
[samba.git] / source3 / 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    Copyright (C) Volker Lendecke 2007
8
9    This program is free software; you can redistribute it and/or modify
10    it under the terms of the GNU General Public License as published by
11    the Free Software Foundation; either version 3 of the License, or
12    (at your option) any later version.
13
14    This program is distributed in the hope that it will be useful,
15    but WITHOUT ANY WARRANTY; without even the implied warranty of
16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17    GNU General Public License for more details.
18
19    You should have received a copy of the GNU General Public License
20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
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_recv;
32 extern uint32 global_client_caps;
33
34 extern bool global_encrypted_passwords_negotiated;
35
36 /****************************************************************************
37  Ensure we check the path in *exactly* the same way as W2K for a findfirst/findnext
38  path or anything including wildcards.
39  We're assuming here that '/' is not the second byte in any multibyte char
40  set (a safe assumption). '\\' *may* be the second byte in a multibyte char
41  set.
42 ****************************************************************************/
43
44 /* Custom version for processing POSIX paths. */
45 #define IS_PATH_SEP(c,posix_only) ((c) == '/' || (!(posix_only) && (c) == '\\'))
46
47 static NTSTATUS check_path_syntax_internal(char *path,
48                                            bool posix_path,
49                                            bool *p_last_component_contains_wcard)
50 {
51         char *d = path;
52         const char *s = path;
53         NTSTATUS ret = NT_STATUS_OK;
54         bool start_of_name_component = True;
55         bool stream_started = false;
56
57         *p_last_component_contains_wcard = False;
58
59         while (*s) {
60                 if (stream_started) {
61                         switch (*s) {
62                         case '/':
63                         case '\\':
64                                 return NT_STATUS_OBJECT_NAME_INVALID;
65                         case ':':
66                                 if (s[1] == '\0') {
67                                         return NT_STATUS_OBJECT_NAME_INVALID;
68                                 }
69                                 if (strchr_m(&s[1], ':')) {
70                                         return NT_STATUS_OBJECT_NAME_INVALID;
71                                 }
72                                 if (StrCaseCmp(s, ":$DATA") != 0) {
73                                         return NT_STATUS_INVALID_PARAMETER;
74                                 }
75                                 break;
76                         }
77                 }
78
79                 if (!stream_started && *s == ':') {
80                         if (*p_last_component_contains_wcard) {
81                                 return NT_STATUS_OBJECT_NAME_INVALID;
82                         }
83                         /* stream names allow more characters than file names */
84                         stream_started = true;
85                         start_of_name_component = false;
86                         posix_path = true;
87
88                         if (s[1] == '\0') {
89                                 return NT_STATUS_OBJECT_NAME_INVALID;
90                         }
91                 }
92
93                 if (!stream_started && IS_PATH_SEP(*s,posix_path)) {
94                         /*
95                          * Safe to assume is not the second part of a mb char
96                          * as this is handled below.
97                          */
98                         /* Eat multiple '/' or '\\' */
99                         while (IS_PATH_SEP(*s,posix_path)) {
100                                 s++;
101                         }
102                         if ((d != path) && (*s != '\0')) {
103                                 /* We only care about non-leading or trailing '/' or '\\' */
104                                 *d++ = '/';
105                         }
106
107                         start_of_name_component = True;
108                         /* New component. */
109                         *p_last_component_contains_wcard = False;
110                         continue;
111                 }
112
113                 if (start_of_name_component) {
114                         if ((s[0] == '.') && (s[1] == '.') && (IS_PATH_SEP(s[2],posix_path) || s[2] == '\0')) {
115                                 /* Uh oh - "/../" or "\\..\\"  or "/..\0" or "\\..\0" ! */
116
117                                 /*
118                                  * No mb char starts with '.' so we're safe checking the directory separator here.
119                                  */
120
121                                 /* If  we just added a '/' - delete it */
122                                 if ((d > path) && (*(d-1) == '/')) {
123                                         *(d-1) = '\0';
124                                         d--;
125                                 }
126
127                                 /* Are we at the start ? Can't go back further if so. */
128                                 if (d <= path) {
129                                         ret = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
130                                         break;
131                                 }
132                                 /* Go back one level... */
133                                 /* We know this is safe as '/' cannot be part of a mb sequence. */
134                                 /* NOTE - if this assumption is invalid we are not in good shape... */
135                                 /* Decrement d first as d points to the *next* char to write into. */
136                                 for (d--; d > path; d--) {
137                                         if (*d == '/')
138                                                 break;
139                                 }
140                                 s += 2; /* Else go past the .. */
141                                 /* We're still at the start of a name component, just the previous one. */
142                                 continue;
143
144                         } else if ((s[0] == '.') && ((s[1] == '\0') || IS_PATH_SEP(s[1],posix_path))) {
145                                 if (posix_path) {
146                                         /* Eat the '.' */
147                                         s++;
148                                         continue;
149                                 }
150                         }
151
152                 }
153
154                 if (!(*s & 0x80)) {
155                         if (!posix_path) {
156                                 if (*s <= 0x1f || *s == '|') {
157                                         return NT_STATUS_OBJECT_NAME_INVALID;
158                                 }
159                                 switch (*s) {
160                                         case '*':
161                                         case '?':
162                                         case '<':
163                                         case '>':
164                                         case '"':
165                                                 *p_last_component_contains_wcard = True;
166                                                 break;
167                                         default:
168                                                 break;
169                                 }
170                         }
171                         *d++ = *s++;
172                 } else {
173                         size_t siz;
174                         /* Get the size of the next MB character. */
175                         next_codepoint(s,&siz);
176                         switch(siz) {
177                                 case 5:
178                                         *d++ = *s++;
179                                         /*fall through*/
180                                 case 4:
181                                         *d++ = *s++;
182                                         /*fall through*/
183                                 case 3:
184                                         *d++ = *s++;
185                                         /*fall through*/
186                                 case 2:
187                                         *d++ = *s++;
188                                         /*fall through*/
189                                 case 1:
190                                         *d++ = *s++;
191                                         break;
192                                 default:
193                                         DEBUG(0,("check_path_syntax_internal: character length assumptions invalid !\n"));
194                                         *d = '\0';
195                                         return NT_STATUS_INVALID_PARAMETER;
196                         }
197                 }
198                 start_of_name_component = False;
199         }
200
201         *d = '\0';
202
203         return ret;
204 }
205
206 /****************************************************************************
207  Ensure we check the path in *exactly* the same way as W2K for regular pathnames.
208  No wildcards allowed.
209 ****************************************************************************/
210
211 NTSTATUS check_path_syntax(char *path)
212 {
213         bool ignore;
214         return check_path_syntax_internal(path, False, &ignore);
215 }
216
217 /****************************************************************************
218  Ensure we check the path in *exactly* the same way as W2K for regular pathnames.
219  Wildcards allowed - p_contains_wcard returns true if the last component contained
220  a wildcard.
221 ****************************************************************************/
222
223 NTSTATUS check_path_syntax_wcard(char *path, bool *p_contains_wcard)
224 {
225         return check_path_syntax_internal(path, False, p_contains_wcard);
226 }
227
228 /****************************************************************************
229  Check the path for a POSIX client.
230  We're assuming here that '/' is not the second byte in any multibyte char
231  set (a safe assumption).
232 ****************************************************************************/
233
234 NTSTATUS check_path_syntax_posix(char *path)
235 {
236         bool ignore;
237         return check_path_syntax_internal(path, True, &ignore);
238 }
239
240 /****************************************************************************
241  Pull a string and check the path allowing a wilcard - provide for error return.
242 ****************************************************************************/
243
244 size_t srvstr_get_path_wcard(TALLOC_CTX *ctx,
245                         const char *base_ptr,
246                         uint16 smb_flags2,
247                         char **pp_dest,
248                         const char *src,
249                         size_t src_len,
250                         int flags,
251                         NTSTATUS *err,
252                         bool *contains_wcard)
253 {
254         size_t ret;
255
256         *pp_dest = NULL;
257
258         ret = srvstr_pull_talloc(ctx, base_ptr, smb_flags2, pp_dest, src,
259                                  src_len, flags);
260
261         if (!*pp_dest) {
262                 *err = NT_STATUS_INVALID_PARAMETER;
263                 return ret;
264         }
265
266         *contains_wcard = False;
267
268         if (smb_flags2 & FLAGS2_DFS_PATHNAMES) {
269                 /*
270                  * For a DFS path the function parse_dfs_path()
271                  * will do the path processing, just make a copy.
272                  */
273                 *err = NT_STATUS_OK;
274                 return ret;
275         }
276
277         if (lp_posix_pathnames()) {
278                 *err = check_path_syntax_posix(*pp_dest);
279         } else {
280                 *err = check_path_syntax_wcard(*pp_dest, contains_wcard);
281         }
282
283         return ret;
284 }
285
286 /****************************************************************************
287  Pull a string and check the path - provide for error return.
288 ****************************************************************************/
289
290 size_t srvstr_get_path(TALLOC_CTX *ctx,
291                         const char *base_ptr,
292                         uint16 smb_flags2,
293                         char **pp_dest,
294                         const char *src,
295                         size_t src_len,
296                         int flags,
297                         NTSTATUS *err)
298 {
299         bool ignore;
300         return srvstr_get_path_wcard(ctx, base_ptr, smb_flags2, pp_dest, src,
301                                      src_len, flags, err, &ignore);
302 }
303
304 size_t srvstr_get_path_req_wcard(TALLOC_CTX *mem_ctx, struct smb_request *req,
305                                  char **pp_dest, const char *src, int flags,
306                                  NTSTATUS *err, bool *contains_wcard)
307 {
308         return srvstr_get_path_wcard(mem_ctx, (char *)req->inbuf, req->flags2,
309                                      pp_dest, src, smbreq_bufrem(req, src),
310                                      flags, err, contains_wcard);
311 }
312
313 size_t srvstr_get_path_req(TALLOC_CTX *mem_ctx, struct smb_request *req,
314                            char **pp_dest, const char *src, int flags,
315                            NTSTATUS *err)
316 {
317         bool ignore;
318         return srvstr_get_path_req_wcard(mem_ctx, req, pp_dest, src,
319                                          flags, err, &ignore);
320 }
321
322 /****************************************************************************
323  Check if we have a correct fsp pointing to a file. Basic check for open fsp.
324 ****************************************************************************/
325
326 bool check_fsp_open(connection_struct *conn, struct smb_request *req,
327                     files_struct *fsp)
328 {
329         if (!(fsp) || !(conn)) {
330                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
331                 return False;
332         }
333         if (((conn) != (fsp)->conn) || req->vuid != (fsp)->vuid) {
334                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
335                 return False;
336         }
337         return True;
338 }
339
340 /****************************************************************************
341  Check if we have a correct fsp pointing to a file.
342 ****************************************************************************/
343
344 bool check_fsp(connection_struct *conn, struct smb_request *req,
345                files_struct *fsp)
346 {
347         if (!check_fsp_open(conn, req, fsp)) {
348                 return False;
349         }
350         if ((fsp)->is_directory) {
351                 reply_nterror(req, NT_STATUS_INVALID_DEVICE_REQUEST);
352                 return False;
353         }
354         if ((fsp)->fh->fd == -1) {
355                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
356                 return False;
357         }
358         (fsp)->num_smb_operations++;
359         return True;
360 }
361
362 /****************************************************************************
363  Check if we have a correct fsp pointing to a quota fake file. Replacement for
364  the CHECK_NTQUOTA_HANDLE_OK macro.
365 ****************************************************************************/
366
367 bool check_fsp_ntquota_handle(connection_struct *conn, struct smb_request *req,
368                               files_struct *fsp)
369 {
370         if (!check_fsp_open(conn, req, fsp)) {
371                 return false;
372         }
373
374         if (fsp->is_directory) {
375                 return false;
376         }
377
378         if (fsp->fake_file_handle == NULL) {
379                 return false;
380         }
381
382         if (fsp->fake_file_handle->type != FAKE_FILE_TYPE_QUOTA) {
383                 return false;
384         }
385
386         if (fsp->fake_file_handle->private_data == NULL) {
387                 return false;
388         }
389
390         return true;
391 }
392
393 /****************************************************************************
394  Check if we have a correct fsp. Replacement for the FSP_BELONGS_CONN macro
395 ****************************************************************************/
396
397 bool fsp_belongs_conn(connection_struct *conn, struct smb_request *req,
398                       files_struct *fsp)
399 {
400         if ((fsp) && (conn) && ((conn)==(fsp)->conn)
401             && (req->vuid == (fsp)->vuid)) {
402                 return True;
403         }
404
405         reply_nterror(req, NT_STATUS_INVALID_HANDLE);
406         return False;
407 }
408
409 /****************************************************************************
410  Reply to a (netbios-level) special message.
411 ****************************************************************************/
412
413 void reply_special(char *inbuf)
414 {
415         int msg_type = CVAL(inbuf,0);
416         int msg_flags = CVAL(inbuf,1);
417         fstring name1,name2;
418         char name_type = 0;
419
420         /*
421          * We only really use 4 bytes of the outbuf, but for the smb_setlen
422          * calculation & friends (srv_send_smb uses that) we need the full smb
423          * header.
424          */
425         char outbuf[smb_size];
426
427         static bool already_got_session = False;
428
429         *name1 = *name2 = 0;
430
431         memset(outbuf, '\0', sizeof(outbuf));
432
433         smb_setlen(outbuf,0);
434
435         switch (msg_type) {
436         case 0x81: /* session request */
437
438                 if (already_got_session) {
439                         exit_server_cleanly("multiple session request not permitted");
440                 }
441
442                 SCVAL(outbuf,0,0x82);
443                 SCVAL(outbuf,3,0);
444                 if (name_len(inbuf+4) > 50 || 
445                     name_len(inbuf+4 + name_len(inbuf + 4)) > 50) {
446                         DEBUG(0,("Invalid name length in session request\n"));
447                         return;
448                 }
449                 name_extract(inbuf,4,name1);
450                 name_type = name_extract(inbuf,4 + name_len(inbuf + 4),name2);
451                 DEBUG(2,("netbios connect: name1=%s name2=%s\n",
452                          name1,name2));      
453
454                 set_local_machine_name(name1, True);
455                 set_remote_machine_name(name2, True);
456
457                 DEBUG(2,("netbios connect: local=%s remote=%s, name type = %x\n",
458                          get_local_machine_name(), get_remote_machine_name(),
459                          name_type));
460
461                 if (name_type == 'R') {
462                         /* We are being asked for a pathworks session --- 
463                            no thanks! */
464                         SCVAL(outbuf, 0,0x83);
465                         break;
466                 }
467
468                 /* only add the client's machine name to the list
469                    of possibly valid usernames if we are operating
470                    in share mode security */
471                 if (lp_security() == SEC_SHARE) {
472                         add_session_user(get_remote_machine_name());
473                 }
474
475                 reload_services(True);
476                 reopen_logs();
477
478                 already_got_session = True;
479                 break;
480
481         case 0x89: /* session keepalive request 
482                       (some old clients produce this?) */
483                 SCVAL(outbuf,0,SMBkeepalive);
484                 SCVAL(outbuf,3,0);
485                 break;
486
487         case 0x82: /* positive session response */
488         case 0x83: /* negative session response */
489         case 0x84: /* retarget session response */
490                 DEBUG(0,("Unexpected session response\n"));
491                 break;
492
493         case SMBkeepalive: /* session keepalive */
494         default:
495                 return;
496         }
497
498         DEBUG(5,("init msg_type=0x%x msg_flags=0x%x\n",
499                     msg_type, msg_flags));
500
501         srv_send_smb(smbd_server_fd(), outbuf, false);
502         return;
503 }
504
505 /****************************************************************************
506  Reply to a tcon.
507  conn POINTER CAN BE NULL HERE !
508 ****************************************************************************/
509
510 void reply_tcon(struct smb_request *req)
511 {
512         connection_struct *conn = req->conn;
513         const char *service;
514         char *service_buf = NULL;
515         char *password = NULL;
516         char *dev = NULL;
517         int pwlen=0;
518         NTSTATUS nt_status;
519         const char *p;
520         DATA_BLOB password_blob;
521         TALLOC_CTX *ctx = talloc_tos();
522
523         START_PROFILE(SMBtcon);
524
525         if (req->buflen < 4) {
526                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
527                 END_PROFILE(SMBtcon);
528                 return;
529         }
530
531         p = (const char *)req->buf + 1;
532         p += srvstr_pull_req_talloc(ctx, req, &service_buf, p, STR_TERMINATE);
533         p += 1;
534         pwlen = srvstr_pull_req_talloc(ctx, req, &password, p, STR_TERMINATE);
535         p += pwlen+1;
536         p += srvstr_pull_req_talloc(ctx, req, &dev, p, STR_TERMINATE);
537         p += 1;
538
539         if (service_buf == NULL || password == NULL || dev == NULL) {
540                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
541                 END_PROFILE(SMBtcon);
542                 return;
543         }
544         p = strrchr_m(service_buf,'\\');
545         if (p) {
546                 service = p+1;
547         } else {
548                 service = service_buf;
549         }
550
551         password_blob = data_blob(password, pwlen+1);
552
553         conn = make_connection(service,password_blob,dev,req->vuid,&nt_status);
554         req->conn = conn;
555
556         data_blob_clear_free(&password_blob);
557
558         if (!conn) {
559                 reply_nterror(req, nt_status);
560                 END_PROFILE(SMBtcon);
561                 return;
562         }
563
564         reply_outbuf(req, 2, 0);
565         SSVAL(req->outbuf,smb_vwv0,max_recv);
566         SSVAL(req->outbuf,smb_vwv1,conn->cnum);
567         SSVAL(req->outbuf,smb_tid,conn->cnum);
568
569         DEBUG(3,("tcon service=%s cnum=%d\n",
570                  service, conn->cnum));
571
572         END_PROFILE(SMBtcon);
573         return;
574 }
575
576 /****************************************************************************
577  Reply to a tcon and X.
578  conn POINTER CAN BE NULL HERE !
579 ****************************************************************************/
580
581 void reply_tcon_and_X(struct smb_request *req)
582 {
583         connection_struct *conn = req->conn;
584         const char *service = NULL;
585         DATA_BLOB password;
586         TALLOC_CTX *ctx = talloc_tos();
587         /* what the cleint thinks the device is */
588         char *client_devicetype = NULL;
589         /* what the server tells the client the share represents */
590         const char *server_devicetype;
591         NTSTATUS nt_status;
592         int passlen;
593         char *path = NULL;
594         const char *p, *q;
595         uint16 tcon_flags;
596
597         START_PROFILE(SMBtconX);
598
599         if (req->wct < 4) {
600                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
601                 END_PROFILE(SMBtconX);
602                 return;
603         }
604
605         passlen = SVAL(req->vwv+3, 0);
606         tcon_flags = SVAL(req->vwv+2, 0);
607
608         /* we might have to close an old one */
609         if ((tcon_flags & 0x1) && conn) {
610                 close_cnum(conn,req->vuid);
611                 req->conn = NULL;
612                 conn = NULL;
613         }
614
615         if ((passlen > MAX_PASS_LEN) || (passlen >= req->buflen)) {
616                 reply_doserror(req, ERRDOS, ERRbuftoosmall);
617                 END_PROFILE(SMBtconX);
618                 return;
619         }
620
621         if (global_encrypted_passwords_negotiated) {
622                 password = data_blob_talloc(talloc_tos(), req->buf, passlen);
623                 if (lp_security() == SEC_SHARE) {
624                         /*
625                          * Security = share always has a pad byte
626                          * after the password.
627                          */
628                         p = (const char *)req->buf + passlen + 1;
629                 } else {
630                         p = (const char *)req->buf + passlen;
631                 }
632         } else {
633                 password = data_blob_talloc(talloc_tos(), req->buf, passlen+1);
634                 /* Ensure correct termination */
635                 password.data[passlen]=0;
636                 p = (const char *)req->buf + passlen + 1;
637         }
638
639         p += srvstr_pull_req_talloc(ctx, req, &path, p, STR_TERMINATE);
640
641         if (path == NULL) {
642                 data_blob_clear_free(&password);
643                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
644                 END_PROFILE(SMBtconX);
645                 return;
646         }
647
648         /*
649          * the service name can be either: \\server\share
650          * or share directly like on the DELL PowerVault 705
651          */
652         if (*path=='\\') {
653                 q = strchr_m(path+2,'\\');
654                 if (!q) {
655                         data_blob_clear_free(&password);
656                         reply_doserror(req, ERRDOS, ERRnosuchshare);
657                         END_PROFILE(SMBtconX);
658                         return;
659                 }
660                 service = q+1;
661         } else {
662                 service = path;
663         }
664
665         p += srvstr_pull_talloc(ctx, req->inbuf, req->flags2,
666                                 &client_devicetype, p,
667                                 MIN(6, smbreq_bufrem(req, p)), STR_ASCII);
668
669         if (client_devicetype == NULL) {
670                 data_blob_clear_free(&password);
671                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
672                 END_PROFILE(SMBtconX);
673                 return;
674         }
675
676         DEBUG(4,("Client requested device type [%s] for share [%s]\n", client_devicetype, service));
677
678         conn = make_connection(service, password, client_devicetype,
679                                req->vuid, &nt_status);
680         req->conn =conn;
681
682         data_blob_clear_free(&password);
683
684         if (!conn) {
685                 reply_nterror(req, nt_status);
686                 END_PROFILE(SMBtconX);
687                 return;
688         }
689
690         if ( IS_IPC(conn) )
691                 server_devicetype = "IPC";
692         else if ( IS_PRINT(conn) )
693                 server_devicetype = "LPT1:";
694         else
695                 server_devicetype = "A:";
696
697         if (Protocol < PROTOCOL_NT1) {
698                 reply_outbuf(req, 2, 0);
699                 if (message_push_string(&req->outbuf, server_devicetype,
700                                         STR_TERMINATE|STR_ASCII) == -1) {
701                         reply_nterror(req, NT_STATUS_NO_MEMORY);
702                         END_PROFILE(SMBtconX);
703                         return;
704                 }
705         } else {
706                 /* NT sets the fstype of IPC$ to the null string */
707                 const char *fstype = IS_IPC(conn) ? "" : lp_fstype(SNUM(conn));
708
709                 if (tcon_flags & TCONX_FLAG_EXTENDED_RESPONSE) {
710                         /* Return permissions. */
711                         uint32 perm1 = 0;
712                         uint32 perm2 = 0;
713
714                         reply_outbuf(req, 7, 0);
715
716                         if (IS_IPC(conn)) {
717                                 perm1 = FILE_ALL_ACCESS;
718                                 perm2 = FILE_ALL_ACCESS;
719                         } else {
720                                 perm1 = CAN_WRITE(conn) ?
721                                                 SHARE_ALL_ACCESS :
722                                                 SHARE_READ_ONLY;
723                         }
724
725                         SIVAL(req->outbuf, smb_vwv3, perm1);
726                         SIVAL(req->outbuf, smb_vwv5, perm2);
727                 } else {
728                         reply_outbuf(req, 3, 0);
729                 }
730
731                 if ((message_push_string(&req->outbuf, server_devicetype,
732                                          STR_TERMINATE|STR_ASCII) == -1)
733                     || (message_push_string(&req->outbuf, fstype,
734                                             STR_TERMINATE) == -1)) {
735                         reply_nterror(req, NT_STATUS_NO_MEMORY);
736                         END_PROFILE(SMBtconX);
737                         return;
738                 }
739
740                 /* what does setting this bit do? It is set by NT4 and
741                    may affect the ability to autorun mounted cdroms */
742                 SSVAL(req->outbuf, smb_vwv2, SMB_SUPPORT_SEARCH_BITS|
743                       (lp_csc_policy(SNUM(conn)) << 2));
744
745                 if (lp_msdfs_root(SNUM(conn)) && lp_host_msdfs()) {
746                         DEBUG(2,("Serving %s as a Dfs root\n",
747                                  lp_servicename(SNUM(conn)) ));
748                         SSVAL(req->outbuf, smb_vwv2,
749                               SMB_SHARE_IN_DFS | SVAL(req->outbuf, smb_vwv2));
750                 }
751         }
752
753
754         DEBUG(3,("tconX service=%s \n",
755                  service));
756
757         /* set the incoming and outgoing tid to the just created one */
758         SSVAL(req->inbuf,smb_tid,conn->cnum);
759         SSVAL(req->outbuf,smb_tid,conn->cnum);
760
761         END_PROFILE(SMBtconX);
762
763         chain_reply(req);
764         return;
765 }
766
767 /****************************************************************************
768  Reply to an unknown type.
769 ****************************************************************************/
770
771 void reply_unknown_new(struct smb_request *req, uint8 type)
772 {
773         DEBUG(0, ("unknown command type (%s): type=%d (0x%X)\n",
774                   smb_fn_name(type), type, type));
775         reply_doserror(req, ERRSRV, ERRunknownsmb);
776         return;
777 }
778
779 /****************************************************************************
780  Reply to an ioctl.
781  conn POINTER CAN BE NULL HERE !
782 ****************************************************************************/
783
784 void reply_ioctl(struct smb_request *req)
785 {
786         connection_struct *conn = req->conn;
787         uint16 device;
788         uint16 function;
789         uint32 ioctl_code;
790         int replysize;
791         char *p;
792
793         START_PROFILE(SMBioctl);
794
795         if (req->wct < 3) {
796                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
797                 END_PROFILE(SMBioctl);
798                 return;
799         }
800
801         device     = SVAL(req->vwv+1, 0);
802         function   = SVAL(req->vwv+2, 0);
803         ioctl_code = (device << 16) + function;
804
805         DEBUG(4, ("Received IOCTL (code 0x%x)\n", ioctl_code));
806
807         switch (ioctl_code) {
808             case IOCTL_QUERY_JOB_INFO:
809                     replysize = 32;
810                     break;
811             default:
812                     reply_doserror(req, ERRSRV, ERRnosupport);
813                     END_PROFILE(SMBioctl);
814                     return;
815         }
816
817         reply_outbuf(req, 8, replysize+1);
818         SSVAL(req->outbuf,smb_vwv1,replysize); /* Total data bytes returned */
819         SSVAL(req->outbuf,smb_vwv5,replysize); /* Data bytes this buffer */
820         SSVAL(req->outbuf,smb_vwv6,52);        /* Offset to data */
821         p = smb_buf(req->outbuf);
822         memset(p, '\0', replysize+1); /* valgrind-safe. */
823         p += 1;          /* Allow for alignment */
824
825         switch (ioctl_code) {
826                 case IOCTL_QUERY_JOB_INFO:                  
827                 {
828                         files_struct *fsp = file_fsp(
829                                 req, SVAL(req->vwv+0, 0));
830                         if (!fsp) {
831                                 reply_doserror(req, ERRDOS, ERRbadfid);
832                                 END_PROFILE(SMBioctl);
833                                 return;
834                         }
835                         SSVAL(p,0,fsp->rap_print_jobid);             /* Job number */
836                         srvstr_push((char *)req->outbuf, req->flags2, p+2,
837                                     global_myname(), 15,
838                                     STR_TERMINATE|STR_ASCII);
839                         if (conn) {
840                                 srvstr_push((char *)req->outbuf, req->flags2,
841                                             p+18, lp_servicename(SNUM(conn)),
842                                             13, STR_TERMINATE|STR_ASCII);
843                         } else {
844                                 memset(p+18, 0, 13);
845                         }
846                         break;
847                 }
848         }
849
850         END_PROFILE(SMBioctl);
851         return;
852 }
853
854 /****************************************************************************
855  Strange checkpath NTSTATUS mapping.
856 ****************************************************************************/
857
858 static NTSTATUS map_checkpath_error(uint16_t flags2, NTSTATUS status)
859 {
860         /* Strange DOS error code semantics only for checkpath... */
861         if (!(flags2 & FLAGS2_32_BIT_ERROR_CODES)) {
862                 if (NT_STATUS_EQUAL(NT_STATUS_OBJECT_NAME_INVALID,status)) {
863                         /* We need to map to ERRbadpath */
864                         return NT_STATUS_OBJECT_PATH_NOT_FOUND;
865                 }
866         }
867         return status;
868 }
869
870 /****************************************************************************
871  Reply to a checkpath.
872 ****************************************************************************/
873
874 void reply_checkpath(struct smb_request *req)
875 {
876         connection_struct *conn = req->conn;
877         char *name = NULL;
878         SMB_STRUCT_STAT sbuf;
879         NTSTATUS status;
880         TALLOC_CTX *ctx = talloc_tos();
881
882         START_PROFILE(SMBcheckpath);
883
884         srvstr_get_path_req(ctx, req, &name, (const char *)req->buf + 1,
885                             STR_TERMINATE, &status);
886
887         if (!NT_STATUS_IS_OK(status)) {
888                 status = map_checkpath_error(req->flags2, status);
889                 reply_nterror(req, status);
890                 END_PROFILE(SMBcheckpath);
891                 return;
892         }
893
894         status = resolve_dfspath(ctx, conn,
895                         req->flags2 & FLAGS2_DFS_PATHNAMES,
896                         name,
897                         &name);
898         if (!NT_STATUS_IS_OK(status)) {
899                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
900                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
901                                         ERRSRV, ERRbadpath);
902                         END_PROFILE(SMBcheckpath);
903                         return;
904                 }
905                 goto path_err;
906         }
907
908         DEBUG(3,("reply_checkpath %s mode=%d\n", name, (int)SVAL(req->vwv+0, 0)));
909
910         status = unix_convert(ctx, conn, name, False, &name, NULL, &sbuf);
911         if (!NT_STATUS_IS_OK(status)) {
912                 goto path_err;
913         }
914
915         status = check_name(conn, name);
916         if (!NT_STATUS_IS_OK(status)) {
917                 DEBUG(3,("reply_checkpath: check_name of %s failed (%s)\n",name,nt_errstr(status)));
918                 goto path_err;
919         }
920
921         if (!VALID_STAT(sbuf) && (SMB_VFS_STAT(conn,name,&sbuf) != 0)) {
922                 DEBUG(3,("reply_checkpath: stat of %s failed (%s)\n",name,strerror(errno)));
923                 status = map_nt_error_from_unix(errno);
924                 goto path_err;
925         }
926
927         if (!S_ISDIR(sbuf.st_mode)) {
928                 reply_botherror(req, NT_STATUS_NOT_A_DIRECTORY,
929                                 ERRDOS, ERRbadpath);
930                 END_PROFILE(SMBcheckpath);
931                 return;
932         }
933
934         reply_outbuf(req, 0, 0);
935
936         END_PROFILE(SMBcheckpath);
937         return;
938
939   path_err:
940
941         END_PROFILE(SMBcheckpath);
942
943         /* We special case this - as when a Windows machine
944                 is parsing a path is steps through the components
945                 one at a time - if a component fails it expects
946                 ERRbadpath, not ERRbadfile.
947         */
948         status = map_checkpath_error(req->flags2, status);
949         if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
950                 /*
951                  * Windows returns different error codes if
952                  * the parent directory is valid but not the
953                  * last component - it returns NT_STATUS_OBJECT_NAME_NOT_FOUND
954                  * for that case and NT_STATUS_OBJECT_PATH_NOT_FOUND
955                  * if the path is invalid.
956                  */
957                 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
958                                 ERRDOS, ERRbadpath);
959                 return;
960         }
961
962         reply_nterror(req, status);
963 }
964
965 /****************************************************************************
966  Reply to a getatr.
967 ****************************************************************************/
968
969 void reply_getatr(struct smb_request *req)
970 {
971         connection_struct *conn = req->conn;
972         char *fname = NULL;
973         SMB_STRUCT_STAT sbuf;
974         int mode=0;
975         SMB_OFF_T size=0;
976         time_t mtime=0;
977         const char *p;
978         NTSTATUS status;
979         TALLOC_CTX *ctx = talloc_tos();
980
981         START_PROFILE(SMBgetatr);
982
983         p = (const char *)req->buf + 1;
984         p += srvstr_get_path_req(ctx, req, &fname, p, STR_TERMINATE, &status);
985         if (!NT_STATUS_IS_OK(status)) {
986                 reply_nterror(req, status);
987                 END_PROFILE(SMBgetatr);
988                 return;
989         }
990
991         status = resolve_dfspath(ctx, conn,
992                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
993                                 fname,
994                                 &fname);
995         if (!NT_STATUS_IS_OK(status)) {
996                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
997                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
998                                         ERRSRV, ERRbadpath);
999                         END_PROFILE(SMBgetatr);
1000                         return;
1001                 }
1002                 reply_nterror(req, status);
1003                 END_PROFILE(SMBgetatr);
1004                 return;
1005         }
1006
1007         /* dos smetimes asks for a stat of "" - it returns a "hidden directory"
1008                 under WfWg - weird! */
1009         if (*fname == '\0') {
1010                 mode = aHIDDEN | aDIR;
1011                 if (!CAN_WRITE(conn)) {
1012                         mode |= aRONLY;
1013                 }
1014                 size = 0;
1015                 mtime = 0;
1016         } else {
1017                 status = unix_convert(ctx, conn, fname, False, &fname, NULL,&sbuf);
1018                 if (!NT_STATUS_IS_OK(status)) {
1019                         reply_nterror(req, status);
1020                         END_PROFILE(SMBgetatr);
1021                         return;
1022                 }
1023                 status = check_name(conn, fname);
1024                 if (!NT_STATUS_IS_OK(status)) {
1025                         DEBUG(3,("reply_getatr: check_name of %s failed (%s)\n",fname,nt_errstr(status)));
1026                         reply_nterror(req, status);
1027                         END_PROFILE(SMBgetatr);
1028                         return;
1029                 }
1030                 if (!VALID_STAT(sbuf) && (SMB_VFS_STAT(conn,fname,&sbuf) != 0)) {
1031                         DEBUG(3,("reply_getatr: stat of %s failed (%s)\n",fname,strerror(errno)));
1032                         reply_unixerror(req, ERRDOS,ERRbadfile);
1033                         END_PROFILE(SMBgetatr);
1034                         return;
1035                 }
1036
1037                 mode = dos_mode(conn,fname,&sbuf);
1038                 size = sbuf.st_size;
1039                 mtime = sbuf.st_mtime;
1040                 if (mode & aDIR) {
1041                         size = 0;
1042                 }
1043         }
1044
1045         reply_outbuf(req, 10, 0);
1046
1047         SSVAL(req->outbuf,smb_vwv0,mode);
1048         if(lp_dos_filetime_resolution(SNUM(conn)) ) {
1049                 srv_put_dos_date3((char *)req->outbuf,smb_vwv1,mtime & ~1);
1050         } else {
1051                 srv_put_dos_date3((char *)req->outbuf,smb_vwv1,mtime);
1052         }
1053         SIVAL(req->outbuf,smb_vwv3,(uint32)size);
1054
1055         if (Protocol >= PROTOCOL_NT1) {
1056                 SSVAL(req->outbuf, smb_flg2,
1057                       SVAL(req->outbuf, smb_flg2) | FLAGS2_IS_LONG_NAME);
1058         }
1059
1060         DEBUG(3,("reply_getatr: name=%s mode=%d size=%u\n", fname, mode, (unsigned int)size ) );
1061
1062         END_PROFILE(SMBgetatr);
1063         return;
1064 }
1065
1066 /****************************************************************************
1067  Reply to a setatr.
1068 ****************************************************************************/
1069
1070 void reply_setatr(struct smb_request *req)
1071 {
1072         struct timespec ts[2];
1073         connection_struct *conn = req->conn;
1074         char *fname = NULL;
1075         int mode;
1076         time_t mtime;
1077         SMB_STRUCT_STAT sbuf;
1078         const char *p;
1079         NTSTATUS status;
1080         TALLOC_CTX *ctx = talloc_tos();
1081
1082         START_PROFILE(SMBsetatr);
1083
1084         ZERO_STRUCT(ts);
1085
1086         if (req->wct < 2) {
1087                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1088                 return;
1089         }
1090
1091         p = (const char *)req->buf + 1;
1092         p += srvstr_get_path_req(ctx, req, &fname, p, STR_TERMINATE, &status);
1093         if (!NT_STATUS_IS_OK(status)) {
1094                 reply_nterror(req, status);
1095                 END_PROFILE(SMBsetatr);
1096                 return;
1097         }
1098
1099         status = resolve_dfspath(ctx, conn,
1100                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
1101                                 fname,
1102                                 &fname);
1103         if (!NT_STATUS_IS_OK(status)) {
1104                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1105                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1106                                         ERRSRV, ERRbadpath);
1107                         END_PROFILE(SMBsetatr);
1108                         return;
1109                 }
1110                 reply_nterror(req, status);
1111                 END_PROFILE(SMBsetatr);
1112                 return;
1113         }
1114
1115         status = unix_convert(ctx, conn, fname, False, &fname, NULL, &sbuf);
1116         if (!NT_STATUS_IS_OK(status)) {
1117                 reply_nterror(req, status);
1118                 END_PROFILE(SMBsetatr);
1119                 return;
1120         }
1121
1122         status = check_name(conn, fname);
1123         if (!NT_STATUS_IS_OK(status)) {
1124                 reply_nterror(req, status);
1125                 END_PROFILE(SMBsetatr);
1126                 return;
1127         }
1128
1129         if (fname[0] == '.' && fname[1] == '\0') {
1130                 /*
1131                  * Not sure here is the right place to catch this
1132                  * condition. Might be moved to somewhere else later -- vl
1133                  */
1134                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1135                 END_PROFILE(SMBsetatr);
1136                 return;
1137         }
1138
1139         mode = SVAL(req->vwv+0, 0);
1140         mtime = srv_make_unix_date3(req->vwv+1);
1141
1142         ts[1] = convert_time_t_to_timespec(mtime);
1143         status = smb_set_file_time(conn, NULL, fname,
1144                                    &sbuf, ts, true);
1145         if (!NT_STATUS_IS_OK(status)) {
1146                 reply_unixerror(req, ERRDOS, ERRnoaccess);
1147                 END_PROFILE(SMBsetatr);
1148                 return;
1149         }
1150
1151         if (mode != FILE_ATTRIBUTE_NORMAL) {
1152                 if (VALID_STAT_OF_DIR(sbuf))
1153                         mode |= aDIR;
1154                 else
1155                         mode &= ~aDIR;
1156
1157                 if (file_set_dosmode(conn,fname,mode,&sbuf,NULL,false) != 0) {
1158                         reply_unixerror(req, ERRDOS, ERRnoaccess);
1159                         END_PROFILE(SMBsetatr);
1160                         return;
1161                 }
1162         }
1163
1164         reply_outbuf(req, 0, 0);
1165
1166         DEBUG( 3, ( "setatr name=%s mode=%d\n", fname, mode ) );
1167
1168         END_PROFILE(SMBsetatr);
1169         return;
1170 }
1171
1172 /****************************************************************************
1173  Reply to a dskattr.
1174 ****************************************************************************/
1175
1176 void reply_dskattr(struct smb_request *req)
1177 {
1178         connection_struct *conn = req->conn;
1179         uint64_t dfree,dsize,bsize;
1180         START_PROFILE(SMBdskattr);
1181
1182         if (get_dfree_info(conn,".",True,&bsize,&dfree,&dsize) == (uint64_t)-1) {
1183                 reply_unixerror(req, ERRHRD, ERRgeneral);
1184                 END_PROFILE(SMBdskattr);
1185                 return;
1186         }
1187
1188         reply_outbuf(req, 5, 0);
1189
1190         if (Protocol <= PROTOCOL_LANMAN2) {
1191                 double total_space, free_space;
1192                 /* we need to scale this to a number that DOS6 can handle. We
1193                    use floating point so we can handle large drives on systems
1194                    that don't have 64 bit integers 
1195
1196                    we end up displaying a maximum of 2G to DOS systems
1197                 */
1198                 total_space = dsize * (double)bsize;
1199                 free_space = dfree * (double)bsize;
1200
1201                 dsize = (uint64_t)((total_space+63*512) / (64*512));
1202                 dfree = (uint64_t)((free_space+63*512) / (64*512));
1203
1204                 if (dsize > 0xFFFF) dsize = 0xFFFF;
1205                 if (dfree > 0xFFFF) dfree = 0xFFFF;
1206
1207                 SSVAL(req->outbuf,smb_vwv0,dsize);
1208                 SSVAL(req->outbuf,smb_vwv1,64); /* this must be 64 for dos systems */
1209                 SSVAL(req->outbuf,smb_vwv2,512); /* and this must be 512 */
1210                 SSVAL(req->outbuf,smb_vwv3,dfree);
1211         } else {
1212                 SSVAL(req->outbuf,smb_vwv0,dsize);
1213                 SSVAL(req->outbuf,smb_vwv1,bsize/512);
1214                 SSVAL(req->outbuf,smb_vwv2,512);
1215                 SSVAL(req->outbuf,smb_vwv3,dfree);
1216         }
1217
1218         DEBUG(3,("dskattr dfree=%d\n", (unsigned int)dfree));
1219
1220         END_PROFILE(SMBdskattr);
1221         return;
1222 }
1223
1224 /****************************************************************************
1225  Reply to a search.
1226  Can be called from SMBsearch, SMBffirst or SMBfunique.
1227 ****************************************************************************/
1228
1229 void reply_search(struct smb_request *req)
1230 {
1231         connection_struct *conn = req->conn;
1232         const char *mask = NULL;
1233         char *directory = NULL;
1234         char *fname = NULL;
1235         SMB_OFF_T size;
1236         uint32 mode;
1237         time_t date;
1238         uint32 dirtype;
1239         unsigned int numentries = 0;
1240         unsigned int maxentries = 0;
1241         bool finished = False;
1242         const char *p;
1243         int status_len;
1244         char *path = NULL;
1245         char status[21];
1246         int dptr_num= -1;
1247         bool check_descend = False;
1248         bool expect_close = False;
1249         NTSTATUS nt_status;
1250         bool mask_contains_wcard = False;
1251         bool allow_long_path_components = (req->flags2 & FLAGS2_LONG_PATH_COMPONENTS) ? True : False;
1252         TALLOC_CTX *ctx = talloc_tos();
1253         bool ask_sharemode = lp_parm_bool(SNUM(conn), "smbd", "search ask sharemode", true);
1254
1255         START_PROFILE(SMBsearch);
1256
1257         if (req->wct < 2) {
1258                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1259                 END_PROFILE(SMBsearch);
1260                 return;
1261         }
1262
1263         if (lp_posix_pathnames()) {
1264                 reply_unknown_new(req, req->cmd);
1265                 END_PROFILE(SMBsearch);
1266                 return;
1267         }
1268
1269         /* If we were called as SMBffirst then we must expect close. */
1270         if(req->cmd == SMBffirst) {
1271                 expect_close = True;
1272         }
1273
1274         reply_outbuf(req, 1, 3);
1275         maxentries = SVAL(req->vwv+0, 0);
1276         dirtype = SVAL(req->vwv+1, 0);
1277         p = (const char *)req->buf + 1;
1278         p += srvstr_get_path_req_wcard(ctx, req, &path, p, STR_TERMINATE,
1279                                        &nt_status, &mask_contains_wcard);
1280         if (!NT_STATUS_IS_OK(nt_status)) {
1281                 reply_nterror(req, nt_status);
1282                 END_PROFILE(SMBsearch);
1283                 return;
1284         }
1285
1286         nt_status = resolve_dfspath_wcard(ctx, conn,
1287                                           req->flags2 & FLAGS2_DFS_PATHNAMES,
1288                                           path,
1289                                           &path,
1290                                           &mask_contains_wcard);
1291         if (!NT_STATUS_IS_OK(nt_status)) {
1292                 if (NT_STATUS_EQUAL(nt_status,NT_STATUS_PATH_NOT_COVERED)) {
1293                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1294                                         ERRSRV, ERRbadpath);
1295                         END_PROFILE(SMBsearch);
1296                         return;
1297                 }
1298                 reply_nterror(req, nt_status);
1299                 END_PROFILE(SMBsearch);
1300                 return;
1301         }
1302
1303         p++;
1304         status_len = SVAL(p, 0);
1305         p += 2;
1306
1307         /* dirtype &= ~aDIR; */
1308
1309         if (status_len == 0) {
1310                 SMB_STRUCT_STAT sbuf;
1311
1312                 nt_status = unix_convert(ctx, conn, path, True,
1313                                 &directory, NULL, &sbuf);
1314                 if (!NT_STATUS_IS_OK(nt_status)) {
1315                         reply_nterror(req, nt_status);
1316                         END_PROFILE(SMBsearch);
1317                         return;
1318                 }
1319
1320                 nt_status = check_name(conn, directory);
1321                 if (!NT_STATUS_IS_OK(nt_status)) {
1322                         reply_nterror(req, nt_status);
1323                         END_PROFILE(SMBsearch);
1324                         return;
1325                 }
1326
1327                 p = strrchr_m(directory,'/');
1328                 if ((p != NULL) && (*directory != '/')) {
1329                         mask = p + 1;
1330                         directory = talloc_strndup(ctx, directory,
1331                                                    PTR_DIFF(p, directory));
1332                 } else {
1333                         mask = directory;
1334                         directory = talloc_strdup(ctx,".");
1335                 }
1336
1337                 if (!directory) {
1338                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1339                         END_PROFILE(SMBsearch);
1340                         return;
1341                 }
1342
1343                 memset((char *)status,'\0',21);
1344                 SCVAL(status,0,(dirtype & 0x1F));
1345
1346                 nt_status = dptr_create(conn,
1347                                         directory,
1348                                         True,
1349                                         expect_close,
1350                                         req->smbpid,
1351                                         mask,
1352                                         mask_contains_wcard,
1353                                         dirtype,
1354                                         &conn->dirptr);
1355                 if (!NT_STATUS_IS_OK(nt_status)) {
1356                         reply_nterror(req, nt_status);
1357                         END_PROFILE(SMBsearch);
1358                         return;
1359                 }
1360                 dptr_num = dptr_dnum(conn->dirptr);
1361         } else {
1362                 int status_dirtype;
1363
1364                 memcpy(status,p,21);
1365                 status_dirtype = CVAL(status,0) & 0x1F;
1366                 if (status_dirtype != (dirtype & 0x1F)) {
1367                         dirtype = status_dirtype;
1368                 }
1369
1370                 conn->dirptr = dptr_fetch(status+12,&dptr_num);
1371                 if (!conn->dirptr) {
1372                         goto SearchEmpty;
1373                 }
1374                 string_set(&conn->dirpath,dptr_path(dptr_num));
1375                 mask = dptr_wcard(dptr_num);
1376                 if (!mask) {
1377                         goto SearchEmpty;
1378                 }
1379                 /*
1380                  * For a 'continue' search we have no string. So
1381                  * check from the initial saved string.
1382                  */
1383                 mask_contains_wcard = ms_has_wild(mask);
1384                 dirtype = dptr_attr(dptr_num);
1385         }
1386
1387         DEBUG(4,("dptr_num is %d\n",dptr_num));
1388
1389         if ((dirtype&0x1F) == aVOLID) {
1390                 char buf[DIR_STRUCT_SIZE];
1391                 memcpy(buf,status,21);
1392                 if (!make_dir_struct(ctx,buf,"???????????",volume_label(SNUM(conn)),
1393                                 0,aVOLID,0,!allow_long_path_components)) {
1394                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1395                         END_PROFILE(SMBsearch);
1396                         return;
1397                 }
1398                 dptr_fill(buf+12,dptr_num);
1399                 if (dptr_zero(buf+12) && (status_len==0)) {
1400                         numentries = 1;
1401                 } else {
1402                         numentries = 0;
1403                 }
1404                 if (message_push_blob(&req->outbuf,
1405                                       data_blob_const(buf, sizeof(buf)))
1406                     == -1) {
1407                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1408                         END_PROFILE(SMBsearch);
1409                         return;
1410                 }
1411         } else {
1412                 unsigned int i;
1413                 maxentries = MIN(
1414                         maxentries,
1415                         ((BUFFER_SIZE -
1416                           ((uint8 *)smb_buf(req->outbuf) + 3 - req->outbuf))
1417                          /DIR_STRUCT_SIZE));
1418
1419                 DEBUG(8,("dirpath=<%s> dontdescend=<%s>\n",
1420                         conn->dirpath,lp_dontdescend(SNUM(conn))));
1421                 if (in_list(conn->dirpath, lp_dontdescend(SNUM(conn)),True)) {
1422                         check_descend = True;
1423                 }
1424
1425                 for (i=numentries;(i<maxentries) && !finished;i++) {
1426                         finished = !get_dir_entry(ctx,
1427                                                   conn,
1428                                                   mask,
1429                                                   dirtype,
1430                                                   &fname,
1431                                                   &size,
1432                                                   &mode,
1433                                                   &date,
1434                                                   check_descend,
1435                                                   ask_sharemode);
1436                         if (!finished) {
1437                                 char buf[DIR_STRUCT_SIZE];
1438                                 memcpy(buf,status,21);
1439                                 if (!make_dir_struct(ctx,
1440                                                 buf,
1441                                                 mask,
1442                                                 fname,
1443                                                 size,
1444                                                 mode,
1445                                                 date,
1446                                                 !allow_long_path_components)) {
1447                                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1448                                         END_PROFILE(SMBsearch);
1449                                         return;
1450                                 }
1451                                 if (!dptr_fill(buf+12,dptr_num)) {
1452                                         break;
1453                                 }
1454                                 if (message_push_blob(&req->outbuf,
1455                                                       data_blob_const(buf, sizeof(buf)))
1456                                     == -1) {
1457                                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1458                                         END_PROFILE(SMBsearch);
1459                                         return;
1460                                 }
1461                                 numentries++;
1462                         }
1463                 }
1464         }
1465
1466   SearchEmpty:
1467
1468         /* If we were called as SMBffirst with smb_search_id == NULL
1469                 and no entries were found then return error and close dirptr 
1470                 (X/Open spec) */
1471
1472         if (numentries == 0) {
1473                 dptr_close(&dptr_num);
1474         } else if(expect_close && status_len == 0) {
1475                 /* Close the dptr - we know it's gone */
1476                 dptr_close(&dptr_num);
1477         }
1478
1479         /* If we were called as SMBfunique, then we can close the dirptr now ! */
1480         if(dptr_num >= 0 && req->cmd == SMBfunique) {
1481                 dptr_close(&dptr_num);
1482         }
1483
1484         if ((numentries == 0) && !mask_contains_wcard) {
1485                 reply_botherror(req, STATUS_NO_MORE_FILES, ERRDOS, ERRnofiles);
1486                 END_PROFILE(SMBsearch);
1487                 return;
1488         }
1489
1490         SSVAL(req->outbuf,smb_vwv0,numentries);
1491         SSVAL(req->outbuf,smb_vwv1,3 + numentries * DIR_STRUCT_SIZE);
1492         SCVAL(smb_buf(req->outbuf),0,5);
1493         SSVAL(smb_buf(req->outbuf),1,numentries*DIR_STRUCT_SIZE);
1494
1495         /* The replies here are never long name. */
1496         SSVAL(req->outbuf, smb_flg2,
1497               SVAL(req->outbuf, smb_flg2) & (~FLAGS2_IS_LONG_NAME));
1498         if (!allow_long_path_components) {
1499                 SSVAL(req->outbuf, smb_flg2,
1500                       SVAL(req->outbuf, smb_flg2)
1501                       & (~FLAGS2_LONG_PATH_COMPONENTS));
1502         }
1503
1504         /* This SMB *always* returns ASCII names. Remove the unicode bit in flags2. */
1505         SSVAL(req->outbuf, smb_flg2,
1506               (SVAL(req->outbuf, smb_flg2) & (~FLAGS2_UNICODE_STRINGS)));
1507
1508         if (!directory) {
1509                 directory = dptr_path(dptr_num);
1510         }
1511
1512         DEBUG(4,("%s mask=%s path=%s dtype=%d nument=%u of %u\n",
1513                 smb_fn_name(req->cmd),
1514                 mask,
1515                 directory ? directory : "./",
1516                 dirtype,
1517                 numentries,
1518                 maxentries ));
1519
1520         END_PROFILE(SMBsearch);
1521         return;
1522 }
1523
1524 /****************************************************************************
1525  Reply to a fclose (stop directory search).
1526 ****************************************************************************/
1527
1528 void reply_fclose(struct smb_request *req)
1529 {
1530         int status_len;
1531         char status[21];
1532         int dptr_num= -2;
1533         const char *p;
1534         char *path = NULL;
1535         NTSTATUS err;
1536         bool path_contains_wcard = False;
1537         TALLOC_CTX *ctx = talloc_tos();
1538
1539         START_PROFILE(SMBfclose);
1540
1541         if (lp_posix_pathnames()) {
1542                 reply_unknown_new(req, req->cmd);
1543                 END_PROFILE(SMBfclose);
1544                 return;
1545         }
1546
1547         p = (const char *)req->buf + 1;
1548         p += srvstr_get_path_req_wcard(ctx, req, &path, p, STR_TERMINATE,
1549                                        &err, &path_contains_wcard);
1550         if (!NT_STATUS_IS_OK(err)) {
1551                 reply_nterror(req, err);
1552                 END_PROFILE(SMBfclose);
1553                 return;
1554         }
1555         p++;
1556         status_len = SVAL(p,0);
1557         p += 2;
1558
1559         if (status_len == 0) {
1560                 reply_doserror(req, ERRSRV, ERRsrverror);
1561                 END_PROFILE(SMBfclose);
1562                 return;
1563         }
1564
1565         memcpy(status,p,21);
1566
1567         if(dptr_fetch(status+12,&dptr_num)) {
1568                 /*  Close the dptr - we know it's gone */
1569                 dptr_close(&dptr_num);
1570         }
1571
1572         reply_outbuf(req, 1, 0);
1573         SSVAL(req->outbuf,smb_vwv0,0);
1574
1575         DEBUG(3,("search close\n"));
1576
1577         END_PROFILE(SMBfclose);
1578         return;
1579 }
1580
1581 /****************************************************************************
1582  Reply to an open.
1583 ****************************************************************************/
1584
1585 void reply_open(struct smb_request *req)
1586 {
1587         connection_struct *conn = req->conn;
1588         char *fname = NULL;
1589         uint32 fattr=0;
1590         SMB_OFF_T size = 0;
1591         time_t mtime=0;
1592         int info;
1593         SMB_STRUCT_STAT sbuf;
1594         files_struct *fsp;
1595         int oplock_request;
1596         int deny_mode;
1597         uint32 dos_attr;
1598         uint32 access_mask;
1599         uint32 share_mode;
1600         uint32 create_disposition;
1601         uint32 create_options = 0;
1602         NTSTATUS status;
1603         TALLOC_CTX *ctx = talloc_tos();
1604
1605         START_PROFILE(SMBopen);
1606
1607         if (req->wct < 2) {
1608                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1609                 END_PROFILE(SMBopen);
1610                 return;
1611         }
1612
1613         oplock_request = CORE_OPLOCK_REQUEST(req->inbuf);
1614         deny_mode = SVAL(req->vwv+0, 0);
1615         dos_attr = SVAL(req->vwv+1, 0);
1616
1617         srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf+1,
1618                             STR_TERMINATE, &status);
1619         if (!NT_STATUS_IS_OK(status)) {
1620                 reply_nterror(req, status);
1621                 END_PROFILE(SMBopen);
1622                 return;
1623         }
1624
1625         if (!map_open_params_to_ntcreate(
1626                     fname, deny_mode, OPENX_FILE_EXISTS_OPEN, &access_mask,
1627                     &share_mode, &create_disposition, &create_options)) {
1628                 reply_nterror(req, NT_STATUS_DOS(ERRDOS, ERRbadaccess));
1629                 END_PROFILE(SMBopen);
1630                 return;
1631         }
1632
1633         status = SMB_VFS_CREATE_FILE(
1634                 conn,                                   /* conn */
1635                 req,                                    /* req */
1636                 0,                                      /* root_dir_fid */
1637                 fname,                                  /* fname */
1638                 true,                                   /* is_dos_path */
1639                 access_mask,                            /* access_mask */
1640                 share_mode,                             /* share_access */
1641                 create_disposition,                     /* create_disposition*/
1642                 create_options,                         /* create_options */
1643                 dos_attr,                               /* file_attributes */
1644                 oplock_request,                         /* oplock_request */
1645                 0,                                      /* allocation_size */
1646                 NULL,                                   /* sd */
1647                 NULL,                                   /* ea_list */
1648                 &fsp,                                   /* result */
1649                 &info,                                  /* pinfo */
1650                 &sbuf);                                 /* psbuf */
1651
1652         if (!NT_STATUS_IS_OK(status)) {
1653                 if (open_was_deferred(req->mid)) {
1654                         /* We have re-scheduled this call. */
1655                         END_PROFILE(SMBopen);
1656                         return;
1657                 }
1658                 reply_openerror(req, status);
1659                 END_PROFILE(SMBopen);
1660                 return;
1661         }
1662
1663         size = sbuf.st_size;
1664         fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
1665         mtime = sbuf.st_mtime;
1666
1667         if (fattr & aDIR) {
1668                 DEBUG(3,("attempt to open a directory %s\n",fsp->fsp_name));
1669                 close_file(req, fsp, ERROR_CLOSE);
1670                 reply_doserror(req, ERRDOS,ERRnoaccess);
1671                 END_PROFILE(SMBopen);
1672                 return;
1673         }
1674
1675         reply_outbuf(req, 7, 0);
1676         SSVAL(req->outbuf,smb_vwv0,fsp->fnum);
1677         SSVAL(req->outbuf,smb_vwv1,fattr);
1678         if(lp_dos_filetime_resolution(SNUM(conn)) ) {
1679                 srv_put_dos_date3((char *)req->outbuf,smb_vwv2,mtime & ~1);
1680         } else {
1681                 srv_put_dos_date3((char *)req->outbuf,smb_vwv2,mtime);
1682         }
1683         SIVAL(req->outbuf,smb_vwv4,(uint32)size);
1684         SSVAL(req->outbuf,smb_vwv6,deny_mode);
1685
1686         if (oplock_request && lp_fake_oplocks(SNUM(conn))) {
1687                 SCVAL(req->outbuf,smb_flg,
1688                       CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1689         }
1690
1691         if(EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
1692                 SCVAL(req->outbuf,smb_flg,
1693                       CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1694         }
1695         END_PROFILE(SMBopen);
1696         return;
1697 }
1698
1699 /****************************************************************************
1700  Reply to an open and X.
1701 ****************************************************************************/
1702
1703 void reply_open_and_X(struct smb_request *req)
1704 {
1705         connection_struct *conn = req->conn;
1706         char *fname = NULL;
1707         uint16 open_flags;
1708         int deny_mode;
1709         uint32 smb_attr;
1710         /* Breakout the oplock request bits so we can set the
1711                 reply bits separately. */
1712         int ex_oplock_request;
1713         int core_oplock_request;
1714         int oplock_request;
1715 #if 0
1716         int smb_sattr = SVAL(req->vwv+4, 0);
1717         uint32 smb_time = make_unix_date3(req->vwv+6);
1718 #endif
1719         int smb_ofun;
1720         uint32 fattr=0;
1721         int mtime=0;
1722         SMB_STRUCT_STAT sbuf;
1723         int smb_action = 0;
1724         files_struct *fsp;
1725         NTSTATUS status;
1726         uint64_t allocation_size;
1727         ssize_t retval = -1;
1728         uint32 access_mask;
1729         uint32 share_mode;
1730         uint32 create_disposition;
1731         uint32 create_options = 0;
1732         TALLOC_CTX *ctx = talloc_tos();
1733
1734         START_PROFILE(SMBopenX);
1735
1736         if (req->wct < 15) {
1737                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1738                 END_PROFILE(SMBopenX);
1739                 return;
1740         }
1741
1742         open_flags = SVAL(req->vwv+2, 0);
1743         deny_mode = SVAL(req->vwv+3, 0);
1744         smb_attr = SVAL(req->vwv+5, 0);
1745         ex_oplock_request = EXTENDED_OPLOCK_REQUEST(req->inbuf);
1746         core_oplock_request = CORE_OPLOCK_REQUEST(req->inbuf);
1747         oplock_request = ex_oplock_request | core_oplock_request;
1748         smb_ofun = SVAL(req->vwv+8, 0);
1749         allocation_size = (uint64_t)IVAL(req->vwv+9, 0);
1750
1751         /* If it's an IPC, pass off the pipe handler. */
1752         if (IS_IPC(conn)) {
1753                 if (lp_nt_pipe_support()) {
1754                         reply_open_pipe_and_X(conn, req);
1755                 } else {
1756                         reply_doserror(req, ERRSRV, ERRaccess);
1757                 }
1758                 END_PROFILE(SMBopenX);
1759                 return;
1760         }
1761
1762         /* XXXX we need to handle passed times, sattr and flags */
1763         srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
1764                         STR_TERMINATE, &status);
1765         if (!NT_STATUS_IS_OK(status)) {
1766                 reply_nterror(req, status);
1767                 END_PROFILE(SMBopenX);
1768                 return;
1769         }
1770
1771         if (!map_open_params_to_ntcreate(
1772                     fname, deny_mode, smb_ofun, &access_mask,
1773                     &share_mode, &create_disposition, &create_options)) {
1774                 reply_nterror(req, NT_STATUS_DOS(ERRDOS, ERRbadaccess));
1775                 END_PROFILE(SMBopenX);
1776                 return;
1777         }
1778
1779         status = SMB_VFS_CREATE_FILE(
1780                 conn,                                   /* conn */
1781                 req,                                    /* req */
1782                 0,                                      /* root_dir_fid */
1783                 fname,                                  /* fname */
1784                 true,                                   /* is_dos_path */
1785                 access_mask,                            /* access_mask */
1786                 share_mode,                             /* share_access */
1787                 create_disposition,                     /* create_disposition*/
1788                 create_options,                         /* create_options */
1789                 smb_attr,                               /* file_attributes */
1790                 oplock_request,                         /* oplock_request */
1791                 0,                                      /* allocation_size */
1792                 NULL,                                   /* sd */
1793                 NULL,                                   /* ea_list */
1794                 &fsp,                                   /* result */
1795                 &smb_action,                            /* pinfo */
1796                 &sbuf);                                 /* psbuf */
1797
1798         if (!NT_STATUS_IS_OK(status)) {
1799                 END_PROFILE(SMBopenX);
1800                 if (open_was_deferred(req->mid)) {
1801                         /* We have re-scheduled this call. */
1802                         return;
1803                 }
1804                 reply_openerror(req, status);
1805                 return;
1806         }
1807
1808         /* Setting the "size" field in vwv9 and vwv10 causes the file to be set to this size,
1809            if the file is truncated or created. */
1810         if (((smb_action == FILE_WAS_CREATED) || (smb_action == FILE_WAS_OVERWRITTEN)) && allocation_size) {
1811                 fsp->initial_allocation_size = smb_roundup(fsp->conn, allocation_size);
1812                 if (vfs_allocate_file_space(fsp, fsp->initial_allocation_size) == -1) {
1813                         close_file(req, fsp, ERROR_CLOSE);
1814                         reply_nterror(req, NT_STATUS_DISK_FULL);
1815                         END_PROFILE(SMBopenX);
1816                         return;
1817                 }
1818                 retval = vfs_set_filelen(fsp, (SMB_OFF_T)allocation_size);
1819                 if (retval < 0) {
1820                         close_file(req, fsp, ERROR_CLOSE);
1821                         reply_nterror(req, NT_STATUS_DISK_FULL);
1822                         END_PROFILE(SMBopenX);
1823                         return;
1824                 }
1825                 sbuf.st_size = get_allocation_size(conn,fsp,&sbuf);
1826         }
1827
1828         fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
1829         mtime = sbuf.st_mtime;
1830         if (fattr & aDIR) {
1831                 close_file(req, fsp, ERROR_CLOSE);
1832                 reply_doserror(req, ERRDOS, ERRnoaccess);
1833                 END_PROFILE(SMBopenX);
1834                 return;
1835         }
1836
1837         /* If the caller set the extended oplock request bit
1838                 and we granted one (by whatever means) - set the
1839                 correct bit for extended oplock reply.
1840         */
1841
1842         if (ex_oplock_request && lp_fake_oplocks(SNUM(conn))) {
1843                 smb_action |= EXTENDED_OPLOCK_GRANTED;
1844         }
1845
1846         if(ex_oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
1847                 smb_action |= EXTENDED_OPLOCK_GRANTED;
1848         }
1849
1850         /* If the caller set the core oplock request bit
1851                 and we granted one (by whatever means) - set the
1852                 correct bit for core oplock reply.
1853         */
1854
1855         if (open_flags & EXTENDED_RESPONSE_REQUIRED) {
1856                 reply_outbuf(req, 19, 0);
1857         } else {
1858                 reply_outbuf(req, 15, 0);
1859         }
1860
1861         if (core_oplock_request && lp_fake_oplocks(SNUM(conn))) {
1862                 SCVAL(req->outbuf, smb_flg,
1863                       CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1864         }
1865
1866         if(core_oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
1867                 SCVAL(req->outbuf, smb_flg,
1868                       CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1869         }
1870
1871         SSVAL(req->outbuf,smb_vwv2,fsp->fnum);
1872         SSVAL(req->outbuf,smb_vwv3,fattr);
1873         if(lp_dos_filetime_resolution(SNUM(conn)) ) {
1874                 srv_put_dos_date3((char *)req->outbuf,smb_vwv4,mtime & ~1);
1875         } else {
1876                 srv_put_dos_date3((char *)req->outbuf,smb_vwv4,mtime);
1877         }
1878         SIVAL(req->outbuf,smb_vwv6,(uint32)sbuf.st_size);
1879         SSVAL(req->outbuf,smb_vwv8,GET_OPENX_MODE(deny_mode));
1880         SSVAL(req->outbuf,smb_vwv11,smb_action);
1881
1882         if (open_flags & EXTENDED_RESPONSE_REQUIRED) {
1883                 SIVAL(req->outbuf, smb_vwv15, STD_RIGHT_ALL_ACCESS);
1884         }
1885
1886         END_PROFILE(SMBopenX);
1887         chain_reply(req);
1888         return;
1889 }
1890
1891 /****************************************************************************
1892  Reply to a SMBulogoffX.
1893 ****************************************************************************/
1894
1895 void reply_ulogoffX(struct smb_request *req)
1896 {
1897         user_struct *vuser;
1898
1899         START_PROFILE(SMBulogoffX);
1900
1901         vuser = get_valid_user_struct(req->vuid);
1902
1903         if(vuser == NULL) {
1904                 DEBUG(3,("ulogoff, vuser id %d does not map to user.\n",
1905                          req->vuid));
1906         }
1907
1908         /* in user level security we are supposed to close any files
1909                 open by this user */
1910         if ((vuser != NULL) && (lp_security() != SEC_SHARE)) {
1911                 file_close_user(req->vuid);
1912         }
1913
1914         invalidate_vuid(req->vuid);
1915
1916         reply_outbuf(req, 2, 0);
1917
1918         DEBUG( 3, ( "ulogoffX vuid=%d\n", req->vuid ) );
1919
1920         END_PROFILE(SMBulogoffX);
1921         chain_reply(req);
1922 }
1923
1924 /****************************************************************************
1925  Reply to a mknew or a create.
1926 ****************************************************************************/
1927
1928 void reply_mknew(struct smb_request *req)
1929 {
1930         connection_struct *conn = req->conn;
1931         char *fname = NULL;
1932         uint32 fattr = 0;
1933         struct timespec ts[2];
1934         files_struct *fsp;
1935         int oplock_request = 0;
1936         SMB_STRUCT_STAT sbuf;
1937         NTSTATUS status;
1938         uint32 access_mask = FILE_GENERIC_READ | FILE_GENERIC_WRITE;
1939         uint32 share_mode = FILE_SHARE_READ|FILE_SHARE_WRITE;
1940         uint32 create_disposition;
1941         uint32 create_options = 0;
1942         TALLOC_CTX *ctx = talloc_tos();
1943
1944         START_PROFILE(SMBcreate);
1945
1946         if (req->wct < 3) {
1947                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1948                 END_PROFILE(SMBcreate);
1949                 return;
1950         }
1951
1952         fattr = SVAL(req->vwv+0, 0);
1953         oplock_request = CORE_OPLOCK_REQUEST(req->inbuf);
1954
1955         ts[1] = convert_time_t_to_timespec(srv_make_unix_date3(req->vwv+1));
1956                         /* mtime. */
1957
1958         srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf + 1,
1959                             STR_TERMINATE, &status);
1960         if (!NT_STATUS_IS_OK(status)) {
1961                 reply_nterror(req, status);
1962                 END_PROFILE(SMBcreate);
1963                 return;
1964         }
1965
1966         if (fattr & aVOLID) {
1967                 DEBUG(0,("Attempt to create file (%s) with volid set - "
1968                         "please report this\n", fname));
1969         }
1970
1971         if(req->cmd == SMBmknew) {
1972                 /* We should fail if file exists. */
1973                 create_disposition = FILE_CREATE;
1974         } else {
1975                 /* Create if file doesn't exist, truncate if it does. */
1976                 create_disposition = FILE_OVERWRITE_IF;
1977         }
1978
1979         status = SMB_VFS_CREATE_FILE(
1980                 conn,                                   /* conn */
1981                 req,                                    /* req */
1982                 0,                                      /* root_dir_fid */
1983                 fname,                                  /* fname */
1984                 true,                                   /* is_dos_path */
1985                 access_mask,                            /* access_mask */
1986                 share_mode,                             /* share_access */
1987                 create_disposition,                     /* create_disposition*/
1988                 create_options,                         /* create_options */
1989                 fattr,                                  /* file_attributes */
1990                 oplock_request,                         /* oplock_request */
1991                 0,                                      /* allocation_size */
1992                 NULL,                                   /* sd */
1993                 NULL,                                   /* ea_list */
1994                 &fsp,                                   /* result */
1995                 NULL,                                   /* pinfo */
1996                 &sbuf);                                 /* psbuf */
1997
1998         if (!NT_STATUS_IS_OK(status)) {
1999                 END_PROFILE(SMBcreate);
2000                 if (open_was_deferred(req->mid)) {
2001                         /* We have re-scheduled this call. */
2002                         return;
2003                 }
2004                 reply_openerror(req, status);
2005                 return;
2006         }
2007
2008         ts[0] = get_atimespec(&sbuf); /* atime. */
2009         status = smb_set_file_time(conn, fsp, fsp->fsp_name, &sbuf, ts, true);
2010         if (!NT_STATUS_IS_OK(status)) {
2011                 END_PROFILE(SMBcreate);
2012                 reply_openerror(req, status);
2013                 return;
2014         }
2015
2016         reply_outbuf(req, 1, 0);
2017         SSVAL(req->outbuf,smb_vwv0,fsp->fnum);
2018
2019         if (oplock_request && lp_fake_oplocks(SNUM(conn))) {
2020                 SCVAL(req->outbuf,smb_flg,
2021                                 CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
2022         }
2023
2024         if(EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
2025                 SCVAL(req->outbuf,smb_flg,
2026                                 CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
2027         }
2028
2029         DEBUG( 2, ( "reply_mknew: file %s\n", fsp->fsp_name ) );
2030         DEBUG( 3, ( "reply_mknew %s fd=%d dmode=0x%x\n",
2031                     fsp->fsp_name, fsp->fh->fd, (unsigned int)fattr ) );
2032
2033         END_PROFILE(SMBcreate);
2034         return;
2035 }
2036
2037 /****************************************************************************
2038  Reply to a create temporary file.
2039 ****************************************************************************/
2040
2041 void reply_ctemp(struct smb_request *req)
2042 {
2043         connection_struct *conn = req->conn;
2044         char *fname = NULL;
2045         uint32 fattr;
2046         files_struct *fsp;
2047         int oplock_request;
2048         int tmpfd;
2049         SMB_STRUCT_STAT sbuf;
2050         char *s;
2051         NTSTATUS status;
2052         TALLOC_CTX *ctx = talloc_tos();
2053
2054         START_PROFILE(SMBctemp);
2055
2056         if (req->wct < 3) {
2057                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2058                 END_PROFILE(SMBctemp);
2059                 return;
2060         }
2061
2062         fattr = SVAL(req->vwv+0, 0);
2063         oplock_request = CORE_OPLOCK_REQUEST(req->inbuf);
2064
2065         srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf+1,
2066                             STR_TERMINATE, &status);
2067         if (!NT_STATUS_IS_OK(status)) {
2068                 reply_nterror(req, status);
2069                 END_PROFILE(SMBctemp);
2070                 return;
2071         }
2072         if (*fname) {
2073                 fname = talloc_asprintf(ctx,
2074                                 "%s/TMXXXXXX",
2075                                 fname);
2076         } else {
2077                 fname = talloc_strdup(ctx, "TMXXXXXX");
2078         }
2079
2080         if (!fname) {
2081                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2082                 END_PROFILE(SMBctemp);
2083                 return;
2084         }
2085
2086         status = resolve_dfspath(ctx, conn,
2087                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
2088                                 fname,
2089                                 &fname);
2090         if (!NT_STATUS_IS_OK(status)) {
2091                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
2092                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
2093                                         ERRSRV, ERRbadpath);
2094                         END_PROFILE(SMBctemp);
2095                         return;
2096                 }
2097                 reply_nterror(req, status);
2098                 END_PROFILE(SMBctemp);
2099                 return;
2100         }
2101
2102         status = unix_convert(ctx, conn, fname, False, &fname, NULL, &sbuf);
2103         if (!NT_STATUS_IS_OK(status)) {
2104                 reply_nterror(req, status);
2105                 END_PROFILE(SMBctemp);
2106                 return;
2107         }
2108
2109         status = check_name(conn, fname);
2110         if (!NT_STATUS_IS_OK(status)) {
2111                 reply_nterror(req, status);
2112                 END_PROFILE(SMBctemp);
2113                 return;
2114         }
2115
2116         tmpfd = smb_mkstemp(fname);
2117         if (tmpfd == -1) {
2118                 reply_unixerror(req, ERRDOS, ERRnoaccess);
2119                 END_PROFILE(SMBctemp);
2120                 return;
2121         }
2122
2123         SMB_VFS_STAT(conn,fname,&sbuf);
2124
2125         /* We should fail if file does not exist. */
2126         status = SMB_VFS_CREATE_FILE(
2127                 conn,                                   /* conn */
2128                 req,                                    /* req */
2129                 0,                                      /* root_dir_fid */
2130                 fname,                                  /* fname */
2131                 false,                                  /* is_dos_path */
2132                 FILE_GENERIC_READ | FILE_GENERIC_WRITE, /* access_mask */
2133                 FILE_SHARE_READ | FILE_SHARE_WRITE,     /* share_access */
2134                 FILE_OPEN,                              /* create_disposition*/
2135                 0,                                      /* create_options */
2136                 fattr,                                  /* file_attributes */
2137                 oplock_request,                         /* oplock_request */
2138                 0,                                      /* allocation_size */
2139                 NULL,                                   /* sd */
2140                 NULL,                                   /* ea_list */
2141                 &fsp,                                   /* result */
2142                 NULL,                                   /* pinfo */
2143                 &sbuf);                                 /* psbuf */
2144
2145         /* close fd from smb_mkstemp() */
2146         close(tmpfd);
2147
2148         if (!NT_STATUS_IS_OK(status)) {
2149                 if (open_was_deferred(req->mid)) {
2150                         /* We have re-scheduled this call. */
2151                         END_PROFILE(SMBctemp);
2152                         return;
2153                 }
2154                 reply_openerror(req, status);
2155                 END_PROFILE(SMBctemp);
2156                 return;
2157         }
2158
2159         reply_outbuf(req, 1, 0);
2160         SSVAL(req->outbuf,smb_vwv0,fsp->fnum);
2161
2162         /* the returned filename is relative to the directory */
2163         s = strrchr_m(fsp->fsp_name, '/');
2164         if (!s) {
2165                 s = fsp->fsp_name;
2166         } else {
2167                 s++;
2168         }
2169
2170 #if 0
2171         /* Tested vs W2K3 - this doesn't seem to be here - null terminated filename is the only
2172            thing in the byte section. JRA */
2173         SSVALS(p, 0, -1); /* what is this? not in spec */
2174 #endif
2175         if (message_push_string(&req->outbuf, s, STR_ASCII|STR_TERMINATE)
2176             == -1) {
2177                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2178                 END_PROFILE(SMBctemp);
2179                 return;
2180         }
2181
2182         if (oplock_request && lp_fake_oplocks(SNUM(conn))) {
2183                 SCVAL(req->outbuf, smb_flg,
2184                       CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
2185         }
2186
2187         if (EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
2188                 SCVAL(req->outbuf, smb_flg,
2189                       CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
2190         }
2191
2192         DEBUG( 2, ( "reply_ctemp: created temp file %s\n", fsp->fsp_name ) );
2193         DEBUG( 3, ( "reply_ctemp %s fd=%d umode=0%o\n", fsp->fsp_name,
2194                     fsp->fh->fd, (unsigned int)sbuf.st_mode ) );
2195
2196         END_PROFILE(SMBctemp);
2197         return;
2198 }
2199
2200 /*******************************************************************
2201  Check if a user is allowed to rename a file.
2202 ********************************************************************/
2203
2204 static NTSTATUS can_rename(connection_struct *conn, files_struct *fsp,
2205                            uint16 dirtype, SMB_STRUCT_STAT *pst)
2206 {
2207         uint32 fmode;
2208
2209         if (!CAN_WRITE(conn)) {
2210                 return NT_STATUS_MEDIA_WRITE_PROTECTED;
2211         }
2212
2213         fmode = dos_mode(conn, fsp->fsp_name, pst);
2214         if ((fmode & ~dirtype) & (aHIDDEN | aSYSTEM)) {
2215                 return NT_STATUS_NO_SUCH_FILE;
2216         }
2217
2218         if (S_ISDIR(pst->st_mode)) {
2219                 return NT_STATUS_OK;
2220         }
2221
2222         if (fsp->access_mask & (DELETE_ACCESS|FILE_WRITE_ATTRIBUTES)) {
2223                 return NT_STATUS_OK;
2224         }
2225
2226         return NT_STATUS_ACCESS_DENIED;
2227 }
2228
2229 /*******************************************************************
2230  * unlink a file with all relevant access checks
2231  *******************************************************************/
2232
2233 static NTSTATUS do_unlink(connection_struct *conn,
2234                         struct smb_request *req,
2235                         const char *fname,
2236                         uint32 dirtype)
2237 {
2238         SMB_STRUCT_STAT sbuf;
2239         uint32 fattr;
2240         files_struct *fsp;
2241         uint32 dirtype_orig = dirtype;
2242         NTSTATUS status;
2243
2244         DEBUG(10,("do_unlink: %s, dirtype = %d\n", fname, dirtype ));
2245
2246         if (!CAN_WRITE(conn)) {
2247                 return NT_STATUS_MEDIA_WRITE_PROTECTED;
2248         }
2249
2250         if (SMB_VFS_LSTAT(conn,fname,&sbuf) != 0) {
2251                 return map_nt_error_from_unix(errno);
2252         }
2253
2254         fattr = dos_mode(conn,fname,&sbuf);
2255
2256         if (dirtype & FILE_ATTRIBUTE_NORMAL) {
2257                 dirtype = aDIR|aARCH|aRONLY;
2258         }
2259
2260         dirtype &= (aDIR|aARCH|aRONLY|aHIDDEN|aSYSTEM);
2261         if (!dirtype) {
2262                 return NT_STATUS_NO_SUCH_FILE;
2263         }
2264
2265         if (!dir_check_ftype(conn, fattr, dirtype)) {
2266                 if (fattr & aDIR) {
2267                         return NT_STATUS_FILE_IS_A_DIRECTORY;
2268                 }
2269                 return NT_STATUS_NO_SUCH_FILE;
2270         }
2271
2272         if (dirtype_orig & 0x8000) {
2273                 /* These will never be set for POSIX. */
2274                 return NT_STATUS_NO_SUCH_FILE;
2275         }
2276
2277 #if 0
2278         if ((fattr & dirtype) & FILE_ATTRIBUTE_DIRECTORY) {
2279                 return NT_STATUS_FILE_IS_A_DIRECTORY;
2280         }
2281
2282         if ((fattr & ~dirtype) & (FILE_ATTRIBUTE_HIDDEN|FILE_ATTRIBUTE_SYSTEM)) {
2283                 return NT_STATUS_NO_SUCH_FILE;
2284         }
2285
2286         if (dirtype & 0xFF00) {
2287                 /* These will never be set for POSIX. */
2288                 return NT_STATUS_NO_SUCH_FILE;
2289         }
2290
2291         dirtype &= 0xFF;
2292         if (!dirtype) {
2293                 return NT_STATUS_NO_SUCH_FILE;
2294         }
2295
2296         /* Can't delete a directory. */
2297         if (fattr & aDIR) {
2298                 return NT_STATUS_FILE_IS_A_DIRECTORY;
2299         }
2300 #endif
2301
2302 #if 0 /* JRATEST */
2303         else if (dirtype & aDIR) /* Asked for a directory and it isn't. */
2304                 return NT_STATUS_OBJECT_NAME_INVALID;
2305 #endif /* JRATEST */
2306
2307         /* Fix for bug #3035 from SATOH Fumiyasu <fumiyas@miraclelinux.com>
2308
2309           On a Windows share, a file with read-only dosmode can be opened with
2310           DELETE_ACCESS. But on a Samba share (delete readonly = no), it
2311           fails with NT_STATUS_CANNOT_DELETE error.
2312
2313           This semantic causes a problem that a user can not
2314           rename a file with read-only dosmode on a Samba share
2315           from a Windows command prompt (i.e. cmd.exe, but can rename
2316           from Windows Explorer).
2317         */
2318
2319         if (!lp_delete_readonly(SNUM(conn))) {
2320                 if (fattr & aRONLY) {
2321                         return NT_STATUS_CANNOT_DELETE;
2322                 }
2323         }
2324
2325         /* On open checks the open itself will check the share mode, so
2326            don't do it here as we'll get it wrong. */
2327
2328         status = SMB_VFS_CREATE_FILE
2329                 (conn,                  /* conn */
2330                  req,                   /* req */
2331                  0,                     /* root_dir_fid */
2332                  fname,                 /* fname */
2333                  false,                 /* is_dos_path */
2334                  DELETE_ACCESS,         /* access_mask */
2335                  FILE_SHARE_NONE,       /* share_access */
2336                  FILE_OPEN,             /* create_disposition*/
2337                  FILE_NON_DIRECTORY_FILE, /* create_options */
2338                  FILE_ATTRIBUTE_NORMAL, /* file_attributes */
2339                  0,                     /* oplock_request */
2340                  0,                     /* allocation_size */
2341                  NULL,                  /* sd */
2342                  NULL,                  /* ea_list */
2343                  &fsp,                  /* result */
2344                  NULL,                  /* pinfo */
2345                  &sbuf);                /* psbuf */
2346
2347         if (!NT_STATUS_IS_OK(status)) {
2348                 DEBUG(10, ("SMB_VFS_CREATEFILE failed: %s\n",
2349                            nt_errstr(status)));
2350                 return status;
2351         }
2352
2353         /* The set is across all open files on this dev/inode pair. */
2354         if (!set_delete_on_close(fsp, True, &conn->server_info->utok)) {
2355                 close_file(req, fsp, NORMAL_CLOSE);
2356                 return NT_STATUS_ACCESS_DENIED;
2357         }
2358
2359         return close_file(req, fsp, NORMAL_CLOSE);
2360 }
2361
2362 /****************************************************************************
2363  The guts of the unlink command, split out so it may be called by the NT SMB
2364  code.
2365 ****************************************************************************/
2366
2367 NTSTATUS unlink_internals(connection_struct *conn, struct smb_request *req,
2368                           uint32 dirtype, const char *name_in, bool has_wild)
2369 {
2370         const char *directory = NULL;
2371         char *mask = NULL;
2372         char *name = NULL;
2373         char *p = NULL;
2374         int count=0;
2375         NTSTATUS status = NT_STATUS_OK;
2376         SMB_STRUCT_STAT sbuf;
2377         TALLOC_CTX *ctx = talloc_tos();
2378
2379         status = unix_convert(ctx, conn, name_in, has_wild, &name, NULL, &sbuf);
2380         if (!NT_STATUS_IS_OK(status)) {
2381                 return status;
2382         }
2383
2384         p = strrchr_m(name,'/');
2385         if (!p) {
2386                 directory = talloc_strdup(ctx, ".");
2387                 if (!directory) {
2388                         return NT_STATUS_NO_MEMORY;
2389                 }
2390                 mask = name;
2391         } else {
2392                 *p = 0;
2393                 directory = name;
2394                 mask = p+1;
2395         }
2396
2397         /*
2398          * We should only check the mangled cache
2399          * here if unix_convert failed. This means
2400          * that the path in 'mask' doesn't exist
2401          * on the file system and so we need to look
2402          * for a possible mangle. This patch from
2403          * Tine Smukavec <valentin.smukavec@hermes.si>.
2404          */
2405
2406         if (!VALID_STAT(sbuf) && mangle_is_mangled(mask,conn->params)) {
2407                 char *new_mask = NULL;
2408                 mangle_lookup_name_from_8_3(ctx,
2409                                 mask,
2410                                 &new_mask,
2411                                 conn->params );
2412                 if (new_mask) {
2413                         mask = new_mask;
2414                 }
2415         }
2416
2417         if (!has_wild) {
2418                 directory = talloc_asprintf(ctx,
2419                                 "%s/%s",
2420                                 directory,
2421                                 mask);
2422                 if (!directory) {
2423                         return NT_STATUS_NO_MEMORY;
2424                 }
2425                 if (dirtype == 0) {
2426                         dirtype = FILE_ATTRIBUTE_NORMAL;
2427                 }
2428
2429                 status = check_name(conn, directory);
2430                 if (!NT_STATUS_IS_OK(status)) {
2431                         return status;
2432                 }
2433
2434                 status = do_unlink(conn, req, directory, dirtype);
2435                 if (!NT_STATUS_IS_OK(status)) {
2436                         return status;
2437                 }
2438
2439                 count++;
2440         } else {
2441                 struct smb_Dir *dir_hnd = NULL;
2442                 long offset = 0;
2443                 const char *dname;
2444
2445                 if ((dirtype & SAMBA_ATTRIBUTES_MASK) == aDIR) {
2446                         return NT_STATUS_OBJECT_NAME_INVALID;
2447                 }
2448
2449                 if (strequal(mask,"????????.???")) {
2450                         mask[0] = '*';
2451                         mask[1] = '\0';
2452                 }
2453
2454                 status = check_name(conn, directory);
2455                 if (!NT_STATUS_IS_OK(status)) {
2456                         return status;
2457                 }
2458
2459                 dir_hnd = OpenDir(talloc_tos(), conn, directory, mask,
2460                                   dirtype);
2461                 if (dir_hnd == NULL) {
2462                         return map_nt_error_from_unix(errno);
2463                 }
2464
2465                 /* XXXX the CIFS spec says that if bit0 of the flags2 field is set then
2466                    the pattern matches against the long name, otherwise the short name 
2467                    We don't implement this yet XXXX
2468                 */
2469
2470                 status = NT_STATUS_NO_SUCH_FILE;
2471
2472                 while ((dname = ReadDirName(dir_hnd, &offset))) {
2473                         SMB_STRUCT_STAT st;
2474                         char *fname = NULL;
2475
2476                         if (!is_visible_file(conn, directory, dname, &st, True)) {
2477                                 continue;
2478                         }
2479
2480                         /* Quick check for "." and ".." */
2481                         if (ISDOT(dname) || ISDOTDOT(dname)) {
2482                                 continue;
2483                         }
2484
2485                         if(!mask_match(dname, mask, conn->case_sensitive)) {
2486                                 continue;
2487                         }
2488
2489                         fname = talloc_asprintf(ctx, "%s/%s",
2490                                         directory,
2491                                         dname);
2492                         if (!fname) {
2493                                 return NT_STATUS_NO_MEMORY;
2494                         }
2495
2496                         status = check_name(conn, fname);
2497                         if (!NT_STATUS_IS_OK(status)) {
2498                                 TALLOC_FREE(dir_hnd);
2499                                 return status;
2500                         }
2501
2502                         status = do_unlink(conn, req, fname, dirtype);
2503                         if (!NT_STATUS_IS_OK(status)) {
2504                                 TALLOC_FREE(fname);
2505                                 continue;
2506                         }
2507
2508                         count++;
2509                         DEBUG(3,("unlink_internals: successful unlink [%s]\n",
2510                                  fname));
2511
2512                         TALLOC_FREE(fname);
2513                 }
2514                 TALLOC_FREE(dir_hnd);
2515         }
2516
2517         if (count == 0 && NT_STATUS_IS_OK(status) && errno != 0) {
2518                 status = map_nt_error_from_unix(errno);
2519         }
2520
2521         return status;
2522 }
2523
2524 /****************************************************************************
2525  Reply to a unlink
2526 ****************************************************************************/
2527
2528 void reply_unlink(struct smb_request *req)
2529 {
2530         connection_struct *conn = req->conn;
2531         char *name = NULL;
2532         uint32 dirtype;
2533         NTSTATUS status;
2534         bool path_contains_wcard = False;
2535         TALLOC_CTX *ctx = talloc_tos();
2536
2537         START_PROFILE(SMBunlink);
2538
2539         if (req->wct < 1) {
2540                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2541                 END_PROFILE(SMBunlink);
2542                 return;
2543         }
2544
2545         dirtype = SVAL(req->vwv+0, 0);
2546
2547         srvstr_get_path_req_wcard(ctx, req, &name, (const char *)req->buf + 1,
2548                                   STR_TERMINATE, &status,
2549                                   &path_contains_wcard);
2550         if (!NT_STATUS_IS_OK(status)) {
2551                 reply_nterror(req, status);
2552                 END_PROFILE(SMBunlink);
2553                 return;
2554         }
2555
2556         status = resolve_dfspath_wcard(ctx, conn,
2557                                        req->flags2 & FLAGS2_DFS_PATHNAMES,
2558                                        name,
2559                                        &name,
2560                                        &path_contains_wcard);
2561         if (!NT_STATUS_IS_OK(status)) {
2562                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
2563                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
2564                                         ERRSRV, ERRbadpath);
2565                         END_PROFILE(SMBunlink);
2566                         return;
2567                 }
2568                 reply_nterror(req, status);
2569                 END_PROFILE(SMBunlink);
2570                 return;
2571         }
2572
2573         DEBUG(3,("reply_unlink : %s\n",name));
2574
2575         status = unlink_internals(conn, req, dirtype, name,
2576                                   path_contains_wcard);
2577         if (!NT_STATUS_IS_OK(status)) {
2578                 if (open_was_deferred(req->mid)) {
2579                         /* We have re-scheduled this call. */
2580                         END_PROFILE(SMBunlink);
2581                         return;
2582                 }
2583                 reply_nterror(req, status);
2584                 END_PROFILE(SMBunlink);
2585                 return;
2586         }
2587
2588         reply_outbuf(req, 0, 0);
2589         END_PROFILE(SMBunlink);
2590
2591         return;
2592 }
2593
2594 /****************************************************************************
2595  Fail for readbraw.
2596 ****************************************************************************/
2597
2598 static void fail_readraw(void)
2599 {
2600         const char *errstr = talloc_asprintf(talloc_tos(),
2601                         "FAIL ! reply_readbraw: socket write fail (%s)",
2602                         strerror(errno));
2603         if (!errstr) {
2604                 errstr = "";
2605         }
2606         exit_server_cleanly(errstr);
2607 }
2608
2609 /****************************************************************************
2610  Fake (read/write) sendfile. Returns -1 on read or write fail.
2611 ****************************************************************************/
2612
2613 static ssize_t fake_sendfile(files_struct *fsp, SMB_OFF_T startpos,
2614                              size_t nread)
2615 {
2616         size_t bufsize;
2617         size_t tosend = nread;
2618         char *buf;
2619
2620         if (nread == 0) {
2621                 return 0;
2622         }
2623
2624         bufsize = MIN(nread, 65536);
2625
2626         if (!(buf = SMB_MALLOC_ARRAY(char, bufsize))) {
2627                 return -1;
2628         }
2629
2630         while (tosend > 0) {
2631                 ssize_t ret;
2632                 size_t cur_read;
2633
2634                 if (tosend > bufsize) {
2635                         cur_read = bufsize;
2636                 } else {
2637                         cur_read = tosend;
2638                 }
2639                 ret = read_file(fsp,buf,startpos,cur_read);
2640                 if (ret == -1) {
2641                         SAFE_FREE(buf);
2642                         return -1;
2643                 }
2644
2645                 /* If we had a short read, fill with zeros. */
2646                 if (ret < cur_read) {
2647                         memset(buf, '\0', cur_read - ret);
2648                 }
2649
2650                 if (write_data(smbd_server_fd(),buf,cur_read) != cur_read) {
2651                         SAFE_FREE(buf);
2652                         return -1;
2653                 }
2654                 tosend -= cur_read;
2655                 startpos += cur_read;
2656         }
2657
2658         SAFE_FREE(buf);
2659         return (ssize_t)nread;
2660 }
2661
2662 /****************************************************************************
2663  Return a readbraw error (4 bytes of zero).
2664 ****************************************************************************/
2665
2666 static void reply_readbraw_error(void)
2667 {
2668         char header[4];
2669         SIVAL(header,0,0);
2670         if (write_data(smbd_server_fd(),header,4) != 4) {
2671                 fail_readraw();
2672         }
2673 }
2674
2675 /****************************************************************************
2676  Use sendfile in readbraw.
2677 ****************************************************************************/
2678
2679 void send_file_readbraw(connection_struct *conn,
2680                         files_struct *fsp,
2681                         SMB_OFF_T startpos,
2682                         size_t nread,
2683                         ssize_t mincount)
2684 {
2685         char *outbuf = NULL;
2686         ssize_t ret=0;
2687
2688 #if defined(WITH_SENDFILE)
2689         /*
2690          * We can only use sendfile on a non-chained packet 
2691          * but we can use on a non-oplocked file. tridge proved this
2692          * on a train in Germany :-). JRA.
2693          * reply_readbraw has already checked the length.
2694          */
2695
2696         if ( (chain_size == 0) && (nread > 0) && (fsp->base_fsp == NULL) &&
2697             (fsp->wcp == NULL) && lp_use_sendfile(SNUM(conn)) ) {
2698                 char header[4];
2699                 DATA_BLOB header_blob;
2700
2701                 _smb_setlen(header,nread);
2702                 header_blob = data_blob_const(header, 4);
2703
2704                 if (SMB_VFS_SENDFILE(smbd_server_fd(), fsp,
2705                                 &header_blob, startpos, nread) == -1) {
2706                         /* Returning ENOSYS means no data at all was sent.
2707                          * Do this as a normal read. */
2708                         if (errno == ENOSYS) {
2709                                 goto normal_readbraw;
2710                         }
2711
2712                         /*
2713                          * Special hack for broken Linux with no working sendfile. If we
2714                          * return EINTR we sent the header but not the rest of the data.
2715                          * Fake this up by doing read/write calls.
2716                          */
2717                         if (errno == EINTR) {
2718                                 /* Ensure we don't do this again. */
2719                                 set_use_sendfile(SNUM(conn), False);
2720                                 DEBUG(0,("send_file_readbraw: sendfile not available. Faking..\n"));
2721
2722                                 if (fake_sendfile(fsp, startpos, nread) == -1) {
2723                                         DEBUG(0,("send_file_readbraw: fake_sendfile failed for file %s (%s).\n",
2724                                                 fsp->fsp_name, strerror(errno) ));
2725                                         exit_server_cleanly("send_file_readbraw fake_sendfile failed");
2726                                 }
2727                                 return;
2728                         }
2729
2730                         DEBUG(0,("send_file_readbraw: sendfile failed for file %s (%s). Terminating\n",
2731                                 fsp->fsp_name, strerror(errno) ));
2732                         exit_server_cleanly("send_file_readbraw sendfile failed");
2733                 }
2734
2735                 return;
2736         }
2737 #endif
2738
2739 normal_readbraw:
2740
2741         outbuf = TALLOC_ARRAY(NULL, char, nread+4);
2742         if (!outbuf) {
2743                 DEBUG(0,("send_file_readbraw: TALLOC_ARRAY failed for size %u.\n",
2744                         (unsigned)(nread+4)));
2745                 reply_readbraw_error();
2746                 return;
2747         }
2748
2749         if (nread > 0) {
2750                 ret = read_file(fsp,outbuf+4,startpos,nread);
2751 #if 0 /* mincount appears to be ignored in a W2K server. JRA. */
2752                 if (ret < mincount)
2753                         ret = 0;
2754 #else
2755                 if (ret < nread)
2756                         ret = 0;
2757 #endif
2758         }
2759
2760         _smb_setlen(outbuf,ret);
2761         if (write_data(smbd_server_fd(),outbuf,4+ret) != 4+ret)
2762                 fail_readraw();
2763
2764         TALLOC_FREE(outbuf);
2765 }
2766
2767 /****************************************************************************
2768  Reply to a readbraw (core+ protocol).
2769 ****************************************************************************/
2770
2771 void reply_readbraw(struct smb_request *req)
2772 {
2773         connection_struct *conn = req->conn;
2774         ssize_t maxcount,mincount;
2775         size_t nread = 0;
2776         SMB_OFF_T startpos;
2777         files_struct *fsp;
2778         SMB_STRUCT_STAT st;
2779         SMB_OFF_T size = 0;
2780
2781         START_PROFILE(SMBreadbraw);
2782
2783         if (srv_is_signing_active() || is_encrypted_packet(req->inbuf)) {
2784                 exit_server_cleanly("reply_readbraw: SMB signing/sealing is active - "
2785                         "raw reads/writes are disallowed.");
2786         }
2787
2788         if (req->wct < 8) {
2789                 reply_readbraw_error();
2790                 END_PROFILE(SMBreadbraw);
2791                 return;
2792         }
2793
2794         /*
2795          * Special check if an oplock break has been issued
2796          * and the readraw request croses on the wire, we must
2797          * return a zero length response here.
2798          */
2799
2800         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
2801
2802         /*
2803          * We have to do a check_fsp by hand here, as
2804          * we must always return 4 zero bytes on error,
2805          * not a NTSTATUS.
2806          */
2807
2808         if (!fsp || !conn || conn != fsp->conn ||
2809                         req->vuid != fsp->vuid ||
2810                         fsp->is_directory || fsp->fh->fd == -1) {
2811                 /*
2812                  * fsp could be NULL here so use the value from the packet. JRA.
2813                  */
2814                 DEBUG(3,("reply_readbraw: fnum %d not valid "
2815                         "- cache prime?\n",
2816                         (int)SVAL(req->vwv+0, 0)));
2817                 reply_readbraw_error();
2818                 END_PROFILE(SMBreadbraw);
2819                 return;
2820         }
2821
2822         /* Do a "by hand" version of CHECK_READ. */
2823         if (!(fsp->can_read ||
2824                         ((req->flags2 & FLAGS2_READ_PERMIT_EXECUTE) &&
2825                                 (fsp->access_mask & FILE_EXECUTE)))) {
2826                 DEBUG(3,("reply_readbraw: fnum %d not readable.\n",
2827                                 (int)SVAL(req->vwv+0, 0)));
2828                 reply_readbraw_error();
2829                 END_PROFILE(SMBreadbraw);
2830                 return;
2831         }
2832
2833         flush_write_cache(fsp, READRAW_FLUSH);
2834
2835         startpos = IVAL_TO_SMB_OFF_T(req->vwv+1, 0);
2836         if(req->wct == 10) {
2837                 /*
2838                  * This is a large offset (64 bit) read.
2839                  */
2840 #ifdef LARGE_SMB_OFF_T
2841
2842                 startpos |= (((SMB_OFF_T)IVAL(req->vwv+8, 0)) << 32);
2843
2844 #else /* !LARGE_SMB_OFF_T */
2845
2846                 /*
2847                  * Ensure we haven't been sent a >32 bit offset.
2848                  */
2849
2850                 if(IVAL(req->vwv+8, 0) != 0) {
2851                         DEBUG(0,("reply_readbraw: large offset "
2852                                 "(%x << 32) used and we don't support "
2853                                 "64 bit offsets.\n",
2854                         (unsigned int)IVAL(req->vwv+8, 0) ));
2855                         reply_readbraw_error();
2856                         END_PROFILE(SMBreadbraw);
2857                         return;
2858                 }
2859
2860 #endif /* LARGE_SMB_OFF_T */
2861
2862                 if(startpos < 0) {
2863                         DEBUG(0,("reply_readbraw: negative 64 bit "
2864                                 "readraw offset (%.0f) !\n",
2865                                 (double)startpos ));
2866                         reply_readbraw_error();
2867                         END_PROFILE(SMBreadbraw);
2868                         return;
2869                 }      
2870         }
2871
2872         maxcount = (SVAL(req->vwv+3, 0) & 0xFFFF);
2873         mincount = (SVAL(req->vwv+4, 0) & 0xFFFF);
2874
2875         /* ensure we don't overrun the packet size */
2876         maxcount = MIN(65535,maxcount);
2877
2878         if (is_locked(fsp,(uint32)req->smbpid,
2879                         (uint64_t)maxcount,
2880                         (uint64_t)startpos,
2881                         READ_LOCK)) {
2882                 reply_readbraw_error();
2883                 END_PROFILE(SMBreadbraw);
2884                 return;
2885         }
2886
2887         if (SMB_VFS_FSTAT(fsp, &st) == 0) {
2888                 size = st.st_size;
2889         }
2890
2891         if (startpos >= size) {
2892                 nread = 0;
2893         } else {
2894                 nread = MIN(maxcount,(size - startpos));
2895         }
2896
2897 #if 0 /* mincount appears to be ignored in a W2K server. JRA. */
2898         if (nread < mincount)
2899                 nread = 0;
2900 #endif
2901
2902         DEBUG( 3, ( "reply_readbraw: fnum=%d start=%.0f max=%lu "
2903                 "min=%lu nread=%lu\n",
2904                 fsp->fnum, (double)startpos,
2905                 (unsigned long)maxcount,
2906                 (unsigned long)mincount,
2907                 (unsigned long)nread ) );
2908
2909         send_file_readbraw(conn, fsp, startpos, nread, mincount);
2910
2911         DEBUG(5,("reply_readbraw finished\n"));
2912         END_PROFILE(SMBreadbraw);
2913 }
2914
2915 #undef DBGC_CLASS
2916 #define DBGC_CLASS DBGC_LOCKING
2917
2918 /****************************************************************************
2919  Reply to a lockread (core+ protocol).
2920 ****************************************************************************/
2921
2922 void reply_lockread(struct smb_request *req)
2923 {
2924         connection_struct *conn = req->conn;
2925         ssize_t nread = -1;
2926         char *data;
2927         SMB_OFF_T startpos;
2928         size_t numtoread;
2929         NTSTATUS status;
2930         files_struct *fsp;
2931         struct byte_range_lock *br_lck = NULL;
2932         char *p = NULL;
2933
2934         START_PROFILE(SMBlockread);
2935
2936         if (req->wct < 5) {
2937                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2938                 END_PROFILE(SMBlockread);
2939                 return;
2940         }
2941
2942         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
2943
2944         if (!check_fsp(conn, req, fsp)) {
2945                 END_PROFILE(SMBlockread);
2946                 return;
2947         }
2948
2949         if (!CHECK_READ(fsp,req)) {
2950                 reply_doserror(req, ERRDOS, ERRbadaccess);
2951                 END_PROFILE(SMBlockread);
2952                 return;
2953         }
2954
2955         release_level_2_oplocks_on_change(fsp);
2956
2957         numtoread = SVAL(req->vwv+1, 0);
2958         startpos = IVAL_TO_SMB_OFF_T(req->vwv+2, 0);
2959
2960         numtoread = MIN(BUFFER_SIZE - (smb_size + 3*2 + 3), numtoread);
2961
2962         reply_outbuf(req, 5, numtoread + 3);
2963
2964         data = smb_buf(req->outbuf) + 3;
2965
2966         /*
2967          * NB. Discovered by Menny Hamburger at Mainsoft. This is a core+
2968          * protocol request that predates the read/write lock concept. 
2969          * Thus instead of asking for a read lock here we need to ask
2970          * for a write lock. JRA.
2971          * Note that the requested lock size is unaffected by max_recv.
2972          */
2973
2974         br_lck = do_lock(smbd_messaging_context(),
2975                         fsp,
2976                         req->smbpid,
2977                         (uint64_t)numtoread,
2978                         (uint64_t)startpos,
2979                         WRITE_LOCK,
2980                         WINDOWS_LOCK,
2981                         False, /* Non-blocking lock. */
2982                         &status,
2983                         NULL);
2984         TALLOC_FREE(br_lck);
2985
2986         if (NT_STATUS_V(status)) {
2987                 reply_nterror(req, status);
2988                 END_PROFILE(SMBlockread);
2989                 return;
2990         }
2991
2992         /*
2993          * However the requested READ size IS affected by max_recv. Insanity.... JRA.
2994          */
2995
2996         if (numtoread > max_recv) {
2997                 DEBUG(0,("reply_lockread: requested read size (%u) is greater than maximum allowed (%u). \
2998 Returning short read of maximum allowed for compatibility with Windows 2000.\n",
2999                         (unsigned int)numtoread, (unsigned int)max_recv ));
3000                 numtoread = MIN(numtoread,max_recv);
3001         }
3002         nread = read_file(fsp,data,startpos,numtoread);
3003
3004         if (nread < 0) {
3005                 reply_unixerror(req, ERRDOS, ERRnoaccess);
3006                 END_PROFILE(SMBlockread);
3007                 return;
3008         }
3009
3010         srv_set_message((char *)req->outbuf, 5, nread+3, False);
3011
3012         SSVAL(req->outbuf,smb_vwv0,nread);
3013         SSVAL(req->outbuf,smb_vwv5,nread+3);
3014         p = smb_buf(req->outbuf);
3015         SCVAL(p,0,0); /* pad byte. */
3016         SSVAL(p,1,nread);
3017
3018         DEBUG(3,("lockread fnum=%d num=%d nread=%d\n",
3019                  fsp->fnum, (int)numtoread, (int)nread));
3020
3021         END_PROFILE(SMBlockread);
3022         return;
3023 }
3024
3025 #undef DBGC_CLASS
3026 #define DBGC_CLASS DBGC_ALL
3027
3028 /****************************************************************************
3029  Reply to a read.
3030 ****************************************************************************/
3031
3032 void reply_read(struct smb_request *req)
3033 {
3034         connection_struct *conn = req->conn;
3035         size_t numtoread;
3036         ssize_t nread = 0;
3037         char *data;
3038         SMB_OFF_T startpos;
3039         int outsize = 0;
3040         files_struct *fsp;
3041
3042         START_PROFILE(SMBread);
3043
3044         if (req->wct < 3) {
3045                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3046                 END_PROFILE(SMBread);
3047                 return;
3048         }
3049
3050         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
3051
3052         if (!check_fsp(conn, req, fsp)) {
3053                 END_PROFILE(SMBread);
3054                 return;
3055         }
3056
3057         if (!CHECK_READ(fsp,req)) {
3058                 reply_doserror(req, ERRDOS, ERRbadaccess);
3059                 END_PROFILE(SMBread);
3060                 return;
3061         }
3062
3063         numtoread = SVAL(req->vwv+1, 0);
3064         startpos = IVAL_TO_SMB_OFF_T(req->vwv+2, 0);
3065
3066         numtoread = MIN(BUFFER_SIZE-outsize,numtoread);
3067
3068         /*
3069          * The requested read size cannot be greater than max_recv. JRA.
3070          */
3071         if (numtoread > max_recv) {
3072                 DEBUG(0,("reply_read: requested read size (%u) is greater than maximum allowed (%u). \
3073 Returning short read of maximum allowed for compatibility with Windows 2000.\n",
3074                         (unsigned int)numtoread, (unsigned int)max_recv ));
3075                 numtoread = MIN(numtoread,max_recv);
3076         }
3077
3078         reply_outbuf(req, 5, numtoread+3);
3079
3080         data = smb_buf(req->outbuf) + 3;
3081
3082         if (is_locked(fsp, (uint32)req->smbpid, (uint64_t)numtoread,
3083                       (uint64_t)startpos, READ_LOCK)) {
3084                 reply_doserror(req, ERRDOS,ERRlock);
3085                 END_PROFILE(SMBread);
3086                 return;
3087         }
3088
3089         if (numtoread > 0)
3090                 nread = read_file(fsp,data,startpos,numtoread);
3091
3092         if (nread < 0) {
3093                 reply_unixerror(req, ERRDOS,ERRnoaccess);
3094                 END_PROFILE(SMBread);
3095                 return;
3096         }
3097
3098         srv_set_message((char *)req->outbuf, 5, nread+3, False);
3099
3100         SSVAL(req->outbuf,smb_vwv0,nread);
3101         SSVAL(req->outbuf,smb_vwv5,nread+3);
3102         SCVAL(smb_buf(req->outbuf),0,1);
3103         SSVAL(smb_buf(req->outbuf),1,nread);
3104
3105         DEBUG( 3, ( "read fnum=%d num=%d nread=%d\n",
3106                 fsp->fnum, (int)numtoread, (int)nread ) );
3107
3108         END_PROFILE(SMBread);
3109         return;
3110 }
3111
3112 /****************************************************************************
3113  Setup readX header.
3114 ****************************************************************************/
3115
3116 static int setup_readX_header(char *outbuf, size_t smb_maxcnt)
3117 {
3118         int outsize;
3119         char *data;
3120
3121         outsize = srv_set_message(outbuf,12,smb_maxcnt,False);
3122         data = smb_buf(outbuf);
3123
3124         memset(outbuf+smb_vwv0,'\0',24); /* valgrind init. */
3125
3126         SCVAL(outbuf,smb_vwv0,0xFF);
3127         SSVAL(outbuf,smb_vwv2,0xFFFF); /* Remaining - must be -1. */
3128         SSVAL(outbuf,smb_vwv5,smb_maxcnt);
3129         SSVAL(outbuf,smb_vwv6,smb_offset(data,outbuf));
3130         SSVAL(outbuf,smb_vwv7,(smb_maxcnt >> 16));
3131         SSVAL(smb_buf(outbuf),-2,smb_maxcnt);
3132         /* Reset the outgoing length, set_message truncates at 0x1FFFF. */
3133         _smb_setlen_large(outbuf,(smb_size + 12*2 + smb_maxcnt - 4));
3134         return outsize;
3135 }
3136
3137 /****************************************************************************
3138  Reply to a read and X - possibly using sendfile.
3139 ****************************************************************************/
3140
3141 static void send_file_readX(connection_struct *conn, struct smb_request *req,
3142                             files_struct *fsp, SMB_OFF_T startpos,
3143                             size_t smb_maxcnt)
3144 {
3145         SMB_STRUCT_STAT sbuf;
3146         ssize_t nread = -1;
3147
3148         if(SMB_VFS_FSTAT(fsp, &sbuf) == -1) {
3149                 reply_unixerror(req, ERRDOS, ERRnoaccess);
3150                 return;
3151         }
3152
3153         if (startpos > sbuf.st_size) {
3154                 smb_maxcnt = 0;
3155         } else if (smb_maxcnt > (sbuf.st_size - startpos)) {
3156                 smb_maxcnt = (sbuf.st_size - startpos);
3157         }
3158
3159         if (smb_maxcnt == 0) {
3160                 goto normal_read;
3161         }
3162
3163 #if defined(WITH_SENDFILE)
3164         /*
3165          * We can only use sendfile on a non-chained packet
3166          * but we can use on a non-oplocked file. tridge proved this
3167          * on a train in Germany :-). JRA.
3168          */
3169
3170         if ((chain_size == 0) && (CVAL(req->vwv+0, 0) == 0xFF) &&
3171             !is_encrypted_packet(req->inbuf) && (fsp->base_fsp == NULL) &&
3172             lp_use_sendfile(SNUM(conn)) && (fsp->wcp == NULL) ) {
3173                 uint8 headerbuf[smb_size + 12 * 2];
3174                 DATA_BLOB header;
3175
3176                 /*
3177                  * Set up the packet header before send. We
3178                  * assume here the sendfile will work (get the
3179                  * correct amount of data).
3180                  */
3181
3182                 header = data_blob_const(headerbuf, sizeof(headerbuf));
3183
3184                 construct_reply_common_req(req, (char *)headerbuf);
3185                 setup_readX_header((char *)headerbuf, smb_maxcnt);
3186
3187                 if ((nread = SMB_VFS_SENDFILE(smbd_server_fd(), fsp, &header, startpos, smb_maxcnt)) == -1) {
3188                         /* Returning ENOSYS or EINVAL means no data at all was sent. 
3189                            Do this as a normal read. */
3190                         if (errno == ENOSYS || errno == EINVAL) {
3191                                 goto normal_read;
3192                         }
3193
3194                         /*
3195                          * Special hack for broken Linux with no working sendfile. If we
3196                          * return EINTR we sent the header but not the rest of the data.
3197                          * Fake this up by doing read/write calls.
3198                          */
3199
3200                         if (errno == EINTR) {
3201                                 /* Ensure we don't do this again. */
3202                                 set_use_sendfile(SNUM(conn), False);
3203                                 DEBUG(0,("send_file_readX: sendfile not available. Faking..\n"));
3204                                 nread = fake_sendfile(fsp, startpos,
3205                                                       smb_maxcnt);
3206                                 if (nread == -1) {
3207                                         DEBUG(0,("send_file_readX: fake_sendfile failed for file %s (%s).\n",
3208                                                 fsp->fsp_name, strerror(errno) ));
3209                                         exit_server_cleanly("send_file_readX: fake_sendfile failed");
3210                                 }
3211                                 DEBUG( 3, ( "send_file_readX: fake_sendfile fnum=%d max=%d nread=%d\n",
3212                                         fsp->fnum, (int)smb_maxcnt, (int)nread ) );
3213                                 /* No outbuf here means successful sendfile. */
3214                                 TALLOC_FREE(req->outbuf);
3215                                 return;
3216                         }
3217
3218                         DEBUG(0,("send_file_readX: sendfile failed for file %s (%s). Terminating\n",
3219                                 fsp->fsp_name, strerror(errno) ));
3220                         exit_server_cleanly("send_file_readX sendfile failed");
3221                 }
3222
3223                 DEBUG( 3, ( "send_file_readX: sendfile fnum=%d max=%d nread=%d\n",
3224                         fsp->fnum, (int)smb_maxcnt, (int)nread ) );
3225                 /* No outbuf here means successful sendfile. */
3226                 TALLOC_FREE(req->outbuf);
3227                 return;
3228         }
3229 #endif
3230
3231 normal_read:
3232
3233         if ((smb_maxcnt & 0xFF0000) > 0x10000) {
3234                 uint8 headerbuf[smb_size + 2*12];
3235
3236                 construct_reply_common_req(req, (char *)headerbuf);
3237                 setup_readX_header((char *)headerbuf, smb_maxcnt);
3238
3239                 /* Send out the header. */
3240                 if (write_data(smbd_server_fd(), (char *)headerbuf,
3241                                sizeof(headerbuf)) != sizeof(headerbuf)) {
3242                         DEBUG(0,("send_file_readX: write_data failed for file %s (%s). Terminating\n",
3243                                 fsp->fsp_name, strerror(errno) ));
3244                         exit_server_cleanly("send_file_readX sendfile failed");
3245                 }
3246                 nread = fake_sendfile(fsp, startpos, smb_maxcnt);
3247                 if (nread == -1) {
3248                         DEBUG(0,("send_file_readX: fake_sendfile failed for file %s (%s).\n",
3249                                 fsp->fsp_name, strerror(errno) ));
3250                         exit_server_cleanly("send_file_readX: fake_sendfile failed");
3251                 }
3252                 TALLOC_FREE(req->outbuf);
3253                 return;
3254         }
3255
3256         reply_outbuf(req, 12, smb_maxcnt);
3257
3258         nread = read_file(fsp, smb_buf(req->outbuf), startpos, smb_maxcnt);
3259         if (nread < 0) {
3260                 reply_unixerror(req, ERRDOS, ERRnoaccess);
3261                 return;
3262         }
3263
3264         setup_readX_header((char *)req->outbuf, nread);
3265
3266         DEBUG( 3, ( "send_file_readX fnum=%d max=%d nread=%d\n",
3267                     fsp->fnum, (int)smb_maxcnt, (int)nread ) );
3268
3269         chain_reply(req);
3270 }
3271
3272 /****************************************************************************
3273  Reply to a read and X.
3274 ****************************************************************************/
3275
3276 void reply_read_and_X(struct smb_request *req)
3277 {
3278         connection_struct *conn = req->conn;
3279         files_struct *fsp;
3280         SMB_OFF_T startpos;
3281         size_t smb_maxcnt;
3282         bool big_readX = False;
3283 #if 0
3284         size_t smb_mincnt = SVAL(req->vwv+6, 0);
3285 #endif
3286
3287         START_PROFILE(SMBreadX);
3288
3289         if ((req->wct != 10) && (req->wct != 12)) {
3290                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3291                 return;
3292         }
3293
3294         fsp = file_fsp(req, SVAL(req->vwv+2, 0));
3295         startpos = IVAL_TO_SMB_OFF_T(req->vwv+3, 0);
3296         smb_maxcnt = SVAL(req->vwv+5, 0);
3297
3298         /* If it's an IPC, pass off the pipe handler. */
3299         if (IS_IPC(conn)) {
3300                 reply_pipe_read_and_X(req);
3301                 END_PROFILE(SMBreadX);
3302                 return;
3303         }
3304
3305         if (!check_fsp(conn, req, fsp)) {
3306                 END_PROFILE(SMBreadX);
3307                 return;
3308         }
3309
3310         if (!CHECK_READ(fsp,req)) {
3311                 reply_doserror(req, ERRDOS,ERRbadaccess);
3312                 END_PROFILE(SMBreadX);
3313                 return;
3314         }
3315
3316         if (global_client_caps & CAP_LARGE_READX) {
3317                 size_t upper_size = SVAL(req->vwv+7, 0);
3318                 smb_maxcnt |= (upper_size<<16);
3319                 if (upper_size > 1) {
3320                         /* Can't do this on a chained packet. */
3321                         if ((CVAL(req->vwv+0, 0) != 0xFF)) {
3322                                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
3323                                 END_PROFILE(SMBreadX);
3324                                 return;
3325                         }
3326                         /* We currently don't do this on signed or sealed data. */
3327                         if (srv_is_signing_active() || is_encrypted_packet(req->inbuf)) {
3328 &nbs