s3 file_access: Convert some more functions over to use smb_filneame
[ira/wip.git] / source3 / smbd / nttrans.c
1 /*
2    Unix SMB/CIFS implementation.
3    SMB NT transaction handling
4    Copyright (C) Jeremy Allison                 1994-2007
5    Copyright (C) Stefan (metze) Metzmacher      2003
6
7    This program is free software; you can redistribute it and/or modify
8    it under the terms of the GNU General Public License as published by
9    the Free Software Foundation; either version 3 of the License, or
10    (at your option) any later version.
11
12    This program is distributed in the hope that it will be useful,
13    but WITHOUT ANY WARRANTY; without even the implied warranty of
14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15    GNU General Public License for more details.
16
17    You should have received a copy of the GNU General Public License
18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
19 */
20
21 #include "includes.h"
22 #include "smbd/globals.h"
23
24 extern enum protocol_types Protocol;
25 extern const struct generic_mapping file_generic_mapping;
26
27 static char *nttrans_realloc(char **ptr, size_t size)
28 {
29         if (ptr==NULL) {
30                 smb_panic("nttrans_realloc() called with NULL ptr");
31         }
32
33         *ptr = (char *)SMB_REALLOC(*ptr, size);
34         if(*ptr == NULL) {
35                 return NULL;
36         }
37         memset(*ptr,'\0',size);
38         return *ptr;
39 }
40
41 /****************************************************************************
42  Send the required number of replies back.
43  We assume all fields other than the data fields are
44  set correctly for the type of call.
45  HACK ! Always assumes smb_setup field is zero.
46 ****************************************************************************/
47
48 void send_nt_replies(connection_struct *conn,
49                         struct smb_request *req, NTSTATUS nt_error,
50                      char *params, int paramsize,
51                      char *pdata, int datasize)
52 {
53         int data_to_send = datasize;
54         int params_to_send = paramsize;
55         int useable_space;
56         char *pp = params;
57         char *pd = pdata;
58         int params_sent_thistime, data_sent_thistime, total_sent_thistime;
59         int alignment_offset = 3;
60         int data_alignment_offset = 0;
61         struct smbd_server_connection *sconn = smbd_server_conn;
62         int max_send = sconn->smb1.sessions.max_send;
63
64         /*
65          * If there genuinely are no parameters or data to send just send
66          * the empty packet.
67          */
68
69         if(params_to_send == 0 && data_to_send == 0) {
70                 reply_outbuf(req, 18, 0);
71                 show_msg((char *)req->outbuf);
72                 return;
73         }
74
75         /*
76          * When sending params and data ensure that both are nicely aligned.
77          * Only do this alignment when there is also data to send - else
78          * can cause NT redirector problems.
79          */
80
81         if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
82                 data_alignment_offset = 4 - (params_to_send % 4);
83         }
84
85         /*
86          * Space is bufsize minus Netbios over TCP header minus SMB header.
87          * The alignment_offset is to align the param bytes on a four byte
88          * boundary (2 bytes for data len, one byte pad).
89          * NT needs this to work correctly.
90          */
91
92         useable_space = max_send - (smb_size
93                                     + 2 * 18 /* wct */
94                                     + alignment_offset
95                                     + data_alignment_offset);
96
97         if (useable_space < 0) {
98                 char *msg = talloc_asprintf(
99                         talloc_tos(),
100                         "send_nt_replies failed sanity useable_space = %d!!!",
101                         useable_space);
102                 DEBUG(0, ("%s\n", msg));
103                 exit_server_cleanly(msg);
104         }
105
106         while (params_to_send || data_to_send) {
107
108                 /*
109                  * Calculate whether we will totally or partially fill this packet.
110                  */
111
112                 total_sent_thistime = params_to_send + data_to_send;
113
114                 /*
115                  * We can never send more than useable_space.
116                  */
117
118                 total_sent_thistime = MIN(total_sent_thistime, useable_space);
119
120                 reply_outbuf(req, 18,
121                              total_sent_thistime + alignment_offset
122                              + data_alignment_offset);
123
124                 /*
125                  * We might have had SMBnttranss in req->inbuf, fix that.
126                  */
127                 SCVAL(req->outbuf, smb_com, SMBnttrans);
128
129                 /*
130                  * Set total params and data to be sent.
131                  */
132
133                 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
134                 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
135
136                 /*
137                  * Calculate how many parameters and data we can fit into
138                  * this packet. Parameters get precedence.
139                  */
140
141                 params_sent_thistime = MIN(params_to_send,useable_space);
142                 data_sent_thistime = useable_space - params_sent_thistime;
143                 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
144
145                 SIVAL(req->outbuf, smb_ntr_ParameterCount,
146                       params_sent_thistime);
147
148                 if(params_sent_thistime == 0) {
149                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
150                         SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
151                 } else {
152                         /*
153                          * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
154                          * parameter bytes, however the first 4 bytes of outbuf are
155                          * the Netbios over TCP header. Thus use smb_base() to subtract
156                          * them from the calculation.
157                          */
158
159                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,
160                               ((smb_buf(req->outbuf)+alignment_offset)
161                                - smb_base(req->outbuf)));
162                         /*
163                          * Absolute displacement of param bytes sent in this packet.
164                          */
165
166                         SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
167                               pp - params);
168                 }
169
170                 /*
171                  * Deal with the data portion.
172                  */
173
174                 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
175
176                 if(data_sent_thistime == 0) {
177                         SIVAL(req->outbuf,smb_ntr_DataOffset,0);
178                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
179                 } else {
180                         /*
181                          * The offset of the data bytes is the offset of the
182                          * parameter bytes plus the number of parameters being sent this time.
183                          */
184
185                         SIVAL(req->outbuf, smb_ntr_DataOffset,
186                               ((smb_buf(req->outbuf)+alignment_offset) -
187                                smb_base(req->outbuf))
188                               + params_sent_thistime + data_alignment_offset);
189                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
190                 }
191
192                 /*
193                  * Copy the param bytes into the packet.
194                  */
195
196                 if(params_sent_thistime) {
197                         if (alignment_offset != 0) {
198                                 memset(smb_buf(req->outbuf), 0,
199                                        alignment_offset);
200                         }
201                         memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
202                                params_sent_thistime);
203                 }
204
205                 /*
206                  * Copy in the data bytes
207                  */
208
209                 if(data_sent_thistime) {
210                         if (data_alignment_offset != 0) {
211                                 memset((smb_buf(req->outbuf)+alignment_offset+
212                                         params_sent_thistime), 0,
213                                        data_alignment_offset);
214                         }
215                         memcpy(smb_buf(req->outbuf)+alignment_offset
216                                +params_sent_thistime+data_alignment_offset,
217                                pd,data_sent_thistime);
218                 }
219
220                 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
221                         params_sent_thistime, data_sent_thistime, useable_space));
222                 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
223                         params_to_send, data_to_send, paramsize, datasize));
224
225                 if (NT_STATUS_V(nt_error)) {
226                         error_packet_set((char *)req->outbuf,
227                                          0, 0, nt_error,
228                                          __LINE__,__FILE__);
229                 }
230
231                 /* Send the packet */
232                 show_msg((char *)req->outbuf);
233                 if (!srv_send_smb(smbd_server_fd(),
234                                 (char *)req->outbuf,
235                                 true, req->seqnum+1,
236                                 IS_CONN_ENCRYPTED(conn),
237                                 &req->pcd)) {
238                         exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
239                 }
240
241                 TALLOC_FREE(req->outbuf);
242
243                 pp += params_sent_thistime;
244                 pd += data_sent_thistime;
245
246                 params_to_send -= params_sent_thistime;
247                 data_to_send -= data_sent_thistime;
248
249                 /*
250                  * Sanity check
251                  */
252
253                 if(params_to_send < 0 || data_to_send < 0) {
254                         DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
255                                 params_to_send, data_to_send));
256                         exit_server_cleanly("send_nt_replies: internal error");
257                 }
258         }
259 }
260
261 /****************************************************************************
262  Is it an NTFS stream name ?
263  An NTFS file name is <path>.<extention>:<stream name>:<stream type>
264  $DATA can be used as both a stream name and a stream type. A missing stream
265  name or type implies $DATA.
266
267  Both Windows stream names and POSIX files can contain the ':' character.
268  This function first checks for the existence of a colon in the last component
269  of the given name.  If the name contains a colon we differentiate between a
270  stream and POSIX file by checking if the latter exists through a POSIX stat.
271
272  Function assumes we've already chdir() to the "root" directory of fname.
273 ****************************************************************************/
274
275 bool is_ntfs_stream_name(const char *fname)
276 {
277         const char *lastcomp;
278         SMB_STRUCT_STAT sbuf;
279
280         /* If all pathnames are treated as POSIX we ignore streams. */
281         if (lp_posix_pathnames()) {
282                 return false;
283         }
284
285         /* Find the last component of the name. */
286         if ((lastcomp = strrchr_m(fname, '/')) != NULL)
287                 ++lastcomp;
288         else
289                 lastcomp = fname;
290
291         /* If there is no colon in the last component, it's not a stream. */
292         if (strchr_m(lastcomp, ':') == NULL)
293                 return false;
294
295         /*
296          * If file already exists on disk, it's not a stream. The stat must
297          * bypass the vfs layer so streams modules don't intefere.
298          */
299         if (sys_stat(fname, &sbuf) == 0) {
300                 DEBUG(5, ("is_ntfs_stream_name: file %s contains a ':' but is "
301                         "not a stream\n", fname));
302                 return false;
303         }
304
305         return true;
306 }
307
308 /****************************************************************************
309  Simple check to determine if the filename is a stream.
310  ***************************************************************************/
311 bool is_ntfs_stream_smb_fname(const struct smb_filename *smb_fname)
312 {
313         if (lp_posix_pathnames()) {
314                 return false;
315         }
316
317         return smb_fname->stream_name;
318 }
319
320 /****************************************************************************
321  Returns true if the filename's stream == "::$DATA"
322  ***************************************************************************/
323 bool is_ntfs_default_stream_smb_fname(const struct smb_filename *smb_fname)
324 {
325         if (!is_ntfs_stream_smb_fname(smb_fname)) {
326                 return false;
327         }
328
329         return StrCaseCmp(smb_fname->stream_name, "::$DATA") == 0;
330 }
331
332 /****************************************************************************
333  Reply to an NT create and X call on a pipe
334 ****************************************************************************/
335
336 static void nt_open_pipe(char *fname, connection_struct *conn,
337                          struct smb_request *req, int *ppnum)
338 {
339         files_struct *fsp;
340         NTSTATUS status;
341
342         DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
343
344         /* Strip \\ off the name. */
345         fname++;
346
347         status = open_np_file(req, fname, &fsp);
348         if (!NT_STATUS_IS_OK(status)) {
349                 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
350                         reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
351                                         ERRDOS, ERRbadpipe);
352                         return;
353                 }
354                 reply_nterror(req, status);
355                 return;
356         }
357
358         *ppnum = fsp->fnum;
359         return;
360 }
361
362 /****************************************************************************
363  Reply to an NT create and X call for pipes.
364 ****************************************************************************/
365
366 static void do_ntcreate_pipe_open(connection_struct *conn,
367                                   struct smb_request *req)
368 {
369         char *fname = NULL;
370         int pnum = -1;
371         char *p = NULL;
372         uint32 flags = IVAL(req->vwv+3, 1);
373         TALLOC_CTX *ctx = talloc_tos();
374
375         srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
376
377         if (!fname) {
378                 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
379                                 ERRDOS, ERRbadpipe);
380                 return;
381         }
382         nt_open_pipe(fname, conn, req, &pnum);
383
384         if (req->outbuf) {
385                 /* error reply */
386                 return;
387         }
388
389         /*
390          * Deal with pipe return.
391          */
392
393         if (flags & EXTENDED_RESPONSE_REQUIRED) {
394                 /* This is very strange. We
395                  * return 50 words, but only set
396                  * the wcnt to 42 ? It's definately
397                  * what happens on the wire....
398                  */
399                 reply_outbuf(req, 50, 0);
400                 SCVAL(req->outbuf,smb_wct,42);
401         } else {
402                 reply_outbuf(req, 34, 0);
403         }
404
405         p = (char *)req->outbuf + smb_vwv2;
406         p++;
407         SSVAL(p,0,pnum);
408         p += 2;
409         SIVAL(p,0,FILE_WAS_OPENED);
410         p += 4;
411         p += 32;
412         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
413         p += 20;
414         /* File type. */
415         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
416         /* Device state. */
417         SSVAL(p,2, 0x5FF); /* ? */
418         p += 4;
419
420         if (flags & EXTENDED_RESPONSE_REQUIRED) {
421                 p += 25;
422                 SIVAL(p,0,FILE_GENERIC_ALL);
423                 /*
424                  * For pipes W2K3 seems to return
425                  * 0x12019B next.
426                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
427                  */
428                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
429         }
430
431         DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
432
433         chain_reply(req);
434 }
435
436 /****************************************************************************
437  Reply to an NT create and X call.
438 ****************************************************************************/
439
440 void reply_ntcreate_and_X(struct smb_request *req)
441 {
442         connection_struct *conn = req->conn;
443         struct smb_filename *smb_fname = NULL;
444         char *fname = NULL;
445         uint32 flags;
446         uint32 access_mask;
447         uint32 file_attributes;
448         uint32 share_access;
449         uint32 create_disposition;
450         uint32 create_options;
451         uint16 root_dir_fid;
452         uint64_t allocation_size;
453         /* Breakout the oplock request bits so we can set the
454            reply bits separately. */
455         uint32 fattr=0;
456         SMB_OFF_T file_len = 0;
457         int info = 0;
458         files_struct *fsp = NULL;
459         char *p = NULL;
460         struct timespec c_timespec;
461         struct timespec a_timespec;
462         struct timespec m_timespec;
463         NTSTATUS status;
464         int oplock_request;
465         uint8_t oplock_granted = NO_OPLOCK_RETURN;
466         TALLOC_CTX *ctx = talloc_tos();
467
468         START_PROFILE(SMBntcreateX);
469
470         if (req->wct < 24) {
471                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
472                 return;
473         }
474
475         flags = IVAL(req->vwv+3, 1);
476         access_mask = IVAL(req->vwv+7, 1);
477         file_attributes = IVAL(req->vwv+13, 1);
478         share_access = IVAL(req->vwv+15, 1);
479         create_disposition = IVAL(req->vwv+17, 1);
480         create_options = IVAL(req->vwv+19, 1);
481         root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
482
483         allocation_size = (uint64_t)IVAL(req->vwv+9, 1);
484 #ifdef LARGE_SMB_OFF_T
485         allocation_size |= (((uint64_t)IVAL(req->vwv+11, 1)) << 32);
486 #endif
487
488         srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
489                             STR_TERMINATE, &status);
490
491         if (!NT_STATUS_IS_OK(status)) {
492                 reply_nterror(req, status);
493                 goto out;
494         }
495
496         DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
497                   "file_attributes = 0x%x, share_access = 0x%x, "
498                   "create_disposition = 0x%x create_options = 0x%x "
499                   "root_dir_fid = 0x%x, fname = %s\n",
500                         (unsigned int)flags,
501                         (unsigned int)access_mask,
502                         (unsigned int)file_attributes,
503                         (unsigned int)share_access,
504                         (unsigned int)create_disposition,
505                         (unsigned int)create_options,
506                         (unsigned int)root_dir_fid,
507                         fname));
508
509         /*
510          * we need to remove ignored bits when they come directly from the client
511          * because we reuse some of them for internal stuff
512          */
513         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
514
515         /*
516          * If it's an IPC, use the pipe handler.
517          */
518
519         if (IS_IPC(conn)) {
520                 if (lp_nt_pipe_support()) {
521                         do_ntcreate_pipe_open(conn, req);
522                         goto out;
523                 }
524                 reply_doserror(req, ERRDOS, ERRnoaccess);
525                 goto out;
526         }
527
528         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
529         if (oplock_request) {
530                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
531                         ? BATCH_OPLOCK : 0;
532         }
533
534         status = filename_convert(ctx,
535                                 conn,
536                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
537                                 fname,
538                                 &smb_fname,
539                                 &fname);
540
541         if (!NT_STATUS_IS_OK(status)) {
542                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
543                         reply_botherror(req,
544                                 NT_STATUS_PATH_NOT_COVERED,
545                                 ERRSRV, ERRbadpath);
546                         goto out;
547                 }
548                 reply_nterror(req, status);
549                 goto out;
550         }
551
552         status = SMB_VFS_CREATE_FILE(
553                 conn,                                   /* conn */
554                 req,                                    /* req */
555                 root_dir_fid,                           /* root_dir_fid */
556                 smb_fname,                              /* fname */
557                 access_mask,                            /* access_mask */
558                 share_access,                           /* share_access */
559                 create_disposition,                     /* create_disposition*/
560                 create_options,                         /* create_options */
561                 file_attributes,                        /* file_attributes */
562                 oplock_request,                         /* oplock_request */
563                 allocation_size,                        /* allocation_size */
564                 NULL,                                   /* sd */
565                 NULL,                                   /* ea_list */
566                 &fsp,                                   /* result */
567                 &info);                                 /* pinfo */
568
569         if (!NT_STATUS_IS_OK(status)) {
570                 if (open_was_deferred(req->mid)) {
571                         /* We have re-scheduled this call, no error. */
572                         goto out;
573                 }
574                 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_COLLISION)) {
575                         reply_botherror(req, status, ERRDOS, ERRfilexists);
576                 }
577                 else {
578                         reply_nterror(req, status);
579                 }
580                 goto out;
581         }
582
583         /*
584          * If the caller set the extended oplock request bit
585          * and we granted one (by whatever means) - set the
586          * correct bit for extended oplock reply.
587          */
588
589         if (oplock_request &&
590             (lp_fake_oplocks(SNUM(conn))
591              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
592
593                 /*
594                  * Exclusive oplock granted
595                  */
596
597                 if (flags & REQUEST_BATCH_OPLOCK) {
598                         oplock_granted = BATCH_OPLOCK_RETURN;
599                 } else {
600                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
601                 }
602         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
603                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
604         } else {
605                 oplock_granted = NO_OPLOCK_RETURN;
606         }
607
608         file_len = smb_fname->st.st_ex_size;
609         fattr = dos_mode(conn,fsp->fsp_name,&smb_fname->st);
610         if (fattr == 0) {
611                 fattr = FILE_ATTRIBUTE_NORMAL;
612         }
613
614         if (flags & EXTENDED_RESPONSE_REQUIRED) {
615                 /* This is very strange. We
616                  * return 50 words, but only set
617                  * the wcnt to 42 ? It's definately
618                  * what happens on the wire....
619                  */
620                 reply_outbuf(req, 50, 0);
621                 SCVAL(req->outbuf,smb_wct,42);
622         } else {
623                 reply_outbuf(req, 34, 0);
624         }
625
626         p = (char *)req->outbuf + smb_vwv2;
627
628         SCVAL(p, 0, oplock_granted);
629
630         p++;
631         SSVAL(p,0,fsp->fnum);
632         p += 2;
633         if ((create_disposition == FILE_SUPERSEDE)
634             && (info == FILE_WAS_OVERWRITTEN)) {
635                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
636         } else {
637                 SIVAL(p,0,info);
638         }
639         p += 4;
640
641         /* Create time. */
642         c_timespec = smb_fname->st.st_ex_btime;
643         a_timespec = smb_fname->st.st_ex_atime;
644         m_timespec = smb_fname->st.st_ex_mtime;
645
646         if (lp_dos_filetime_resolution(SNUM(conn))) {
647                 dos_filetime_timespec(&c_timespec);
648                 dos_filetime_timespec(&a_timespec);
649                 dos_filetime_timespec(&m_timespec);
650         }
651
652         put_long_date_timespec(p, c_timespec); /* create time. */
653         p += 8;
654         put_long_date_timespec(p, a_timespec); /* access time */
655         p += 8;
656         put_long_date_timespec(p, m_timespec); /* write time */
657         p += 8;
658         put_long_date_timespec(p, m_timespec); /* change time */
659         p += 8;
660         SIVAL(p,0,fattr); /* File Attributes. */
661         p += 4;
662         SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
663         p += 8;
664         SOFF_T(p,0,file_len);
665         p += 8;
666         if (flags & EXTENDED_RESPONSE_REQUIRED) {
667                 SSVAL(p,2,0x7);
668         }
669         p += 4;
670         SCVAL(p,0,fsp->is_directory ? 1 : 0);
671
672         if (flags & EXTENDED_RESPONSE_REQUIRED) {
673                 uint32 perms = 0;
674                 p += 25;
675                 if (fsp->is_directory ||
676                     can_write_to_file(conn, smb_fname)) {
677                         perms = FILE_GENERIC_ALL;
678                 } else {
679                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
680                 }
681                 SIVAL(p,0,perms);
682         }
683
684         DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
685                  fsp->fnum, fsp->fsp_name));
686
687         chain_reply(req);
688  out:
689         TALLOC_FREE(smb_fname);
690         END_PROFILE(SMBntcreateX);
691         return;
692 }
693
694 /****************************************************************************
695  Reply to a NT_TRANSACT_CREATE call to open a pipe.
696 ****************************************************************************/
697
698 static void do_nt_transact_create_pipe(connection_struct *conn,
699                                        struct smb_request *req,
700                                        uint16 **ppsetup, uint32 setup_count,
701                                        char **ppparams, uint32 parameter_count,
702                                        char **ppdata, uint32 data_count)
703 {
704         char *fname = NULL;
705         char *params = *ppparams;
706         int pnum = -1;
707         char *p = NULL;
708         NTSTATUS status;
709         size_t param_len;
710         uint32 flags;
711         TALLOC_CTX *ctx = talloc_tos();
712
713         /*
714          * Ensure minimum number of parameters sent.
715          */
716
717         if(parameter_count < 54) {
718                 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
719                 reply_doserror(req, ERRDOS, ERRnoaccess);
720                 return;
721         }
722
723         flags = IVAL(params,0);
724
725         srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
726                         parameter_count-53, STR_TERMINATE,
727                         &status);
728         if (!NT_STATUS_IS_OK(status)) {
729                 reply_nterror(req, status);
730                 return;
731         }
732
733         nt_open_pipe(fname, conn, req, &pnum);
734
735         if (req->outbuf) {
736                 /* Error return */
737                 return;
738         }
739
740         /* Realloc the size of parameters and data we will return */
741         if (flags & EXTENDED_RESPONSE_REQUIRED) {
742                 /* Extended response is 32 more byyes. */
743                 param_len = 101;
744         } else {
745                 param_len = 69;
746         }
747         params = nttrans_realloc(ppparams, param_len);
748         if(params == NULL) {
749                 reply_doserror(req, ERRDOS, ERRnomem);
750                 return;
751         }
752
753         p = params;
754         SCVAL(p,0,NO_OPLOCK_RETURN);
755
756         p += 2;
757         SSVAL(p,0,pnum);
758         p += 2;
759         SIVAL(p,0,FILE_WAS_OPENED);
760         p += 8;
761
762         p += 32;
763         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
764         p += 20;
765         /* File type. */
766         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
767         /* Device state. */
768         SSVAL(p,2, 0x5FF); /* ? */
769         p += 4;
770
771         if (flags & EXTENDED_RESPONSE_REQUIRED) {
772                 p += 25;
773                 SIVAL(p,0,FILE_GENERIC_ALL);
774                 /*
775                  * For pipes W2K3 seems to return
776                  * 0x12019B next.
777                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
778                  */
779                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
780         }
781
782         DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
783
784         /* Send the required number of replies */
785         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
786
787         return;
788 }
789
790 /****************************************************************************
791  Internal fn to set security descriptors.
792 ****************************************************************************/
793
794 static NTSTATUS set_sd(files_struct *fsp, uint8 *data, uint32 sd_len,
795                        uint32 security_info_sent)
796 {
797         SEC_DESC *psd = NULL;
798         NTSTATUS status;
799
800         if (sd_len == 0 || !lp_nt_acl_support(SNUM(fsp->conn))) {
801                 return NT_STATUS_OK;
802         }
803
804         status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
805
806         if (!NT_STATUS_IS_OK(status)) {
807                 return status;
808         }
809
810         if (psd->owner_sid == NULL) {
811                 security_info_sent &= ~OWNER_SECURITY_INFORMATION;
812         }
813         if (psd->group_sid == NULL) {
814                 security_info_sent &= ~GROUP_SECURITY_INFORMATION;
815         }
816
817         /* Convert all the generic bits. */
818         security_acl_map_generic(psd->dacl, &file_generic_mapping);
819         security_acl_map_generic(psd->sacl, &file_generic_mapping);
820
821         if (DEBUGLEVEL >= 10) {
822                 DEBUG(10,("set_sd for file %s\n", fsp->fsp_name ));
823                 NDR_PRINT_DEBUG(security_descriptor, psd);
824         }
825
826         status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
827
828         TALLOC_FREE(psd);
829
830         return status;
831 }
832
833 /****************************************************************************
834  Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
835 ****************************************************************************/
836
837 static struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
838 {
839         struct ea_list *ea_list_head = NULL;
840         size_t offset = 0;
841
842         if (data_size < 4) {
843                 return NULL;
844         }
845
846         while (offset + 4 <= data_size) {
847                 size_t next_offset = IVAL(pdata,offset);
848                 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
849
850                 if (!eal) {
851                         return NULL;
852                 }
853
854                 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
855                 if (next_offset == 0) {
856                         break;
857                 }
858                 offset += next_offset;
859         }
860
861         return ea_list_head;
862 }
863
864 /****************************************************************************
865  Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
866 ****************************************************************************/
867
868 static void call_nt_transact_create(connection_struct *conn,
869                                     struct smb_request *req,
870                                     uint16 **ppsetup, uint32 setup_count,
871                                     char **ppparams, uint32 parameter_count,
872                                     char **ppdata, uint32 data_count,
873                                     uint32 max_data_count)
874 {
875         struct smb_filename *smb_fname = NULL;
876         char *fname = NULL;
877         char *params = *ppparams;
878         char *data = *ppdata;
879         /* Breakout the oplock request bits so we can set the reply bits separately. */
880         uint32 fattr=0;
881         SMB_OFF_T file_len = 0;
882         int info = 0;
883         files_struct *fsp = NULL;
884         char *p = NULL;
885         uint32 flags;
886         uint32 access_mask;
887         uint32 file_attributes;
888         uint32 share_access;
889         uint32 create_disposition;
890         uint32 create_options;
891         uint32 sd_len;
892         struct security_descriptor *sd = NULL;
893         uint32 ea_len;
894         uint16 root_dir_fid;
895         struct timespec c_timespec;
896         struct timespec a_timespec;
897         struct timespec m_timespec;
898         struct ea_list *ea_list = NULL;
899         NTSTATUS status;
900         size_t param_len;
901         uint64_t allocation_size;
902         int oplock_request;
903         uint8_t oplock_granted;
904         TALLOC_CTX *ctx = talloc_tos();
905
906         DEBUG(5,("call_nt_transact_create\n"));
907
908         /*
909          * If it's an IPC, use the pipe handler.
910          */
911
912         if (IS_IPC(conn)) {
913                 if (lp_nt_pipe_support()) {
914                         do_nt_transact_create_pipe(
915                                 conn, req,
916                                 ppsetup, setup_count,
917                                 ppparams, parameter_count,
918                                 ppdata, data_count);
919                         goto out;
920                 }
921                 reply_doserror(req, ERRDOS, ERRnoaccess);
922                 goto out;
923         }
924
925         /*
926          * Ensure minimum number of parameters sent.
927          */
928
929         if(parameter_count < 54) {
930                 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
931                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
932                 goto out;
933         }
934
935         flags = IVAL(params,0);
936         access_mask = IVAL(params,8);
937         file_attributes = IVAL(params,20);
938         share_access = IVAL(params,24);
939         create_disposition = IVAL(params,28);
940         create_options = IVAL(params,32);
941         sd_len = IVAL(params,36);
942         ea_len = IVAL(params,40);
943         root_dir_fid = (uint16)IVAL(params,4);
944         allocation_size = (uint64_t)IVAL(params,12);
945 #ifdef LARGE_SMB_OFF_T
946         allocation_size |= (((uint64_t)IVAL(params,16)) << 32);
947 #endif
948
949         /*
950          * we need to remove ignored bits when they come directly from the client
951          * because we reuse some of them for internal stuff
952          */
953         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
954
955         /* Ensure the data_len is correct for the sd and ea values given. */
956         if ((ea_len + sd_len > data_count)
957             || (ea_len > data_count) || (sd_len > data_count)
958             || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
959                 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
960                            "%u, data_count = %u\n", (unsigned int)ea_len,
961                            (unsigned int)sd_len, (unsigned int)data_count));
962                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
963                 goto out;
964         }
965
966         if (sd_len) {
967                 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
968                            sd_len));
969
970                 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
971                                              &sd);
972                 if (!NT_STATUS_IS_OK(status)) {
973                         DEBUG(10, ("call_nt_transact_create: "
974                                    "unmarshall_sec_desc failed: %s\n",
975                                    nt_errstr(status)));
976                         reply_nterror(req, status);
977                         goto out;
978                 }
979         }
980
981         if (ea_len) {
982                 if (!lp_ea_support(SNUM(conn))) {
983                         DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
984                                    "EA's not supported.\n",
985                                    (unsigned int)ea_len));
986                         reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
987                         goto out;
988                 }
989
990                 if (ea_len < 10) {
991                         DEBUG(10,("call_nt_transact_create - ea_len = %u - "
992                                   "too small (should be more than 10)\n",
993                                   (unsigned int)ea_len ));
994                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
995                         goto out;
996                 }
997
998                 /* We have already checked that ea_len <= data_count here. */
999                 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
1000                                                ea_len);
1001                 if (ea_list == NULL) {
1002                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1003                         goto out;
1004                 }
1005         }
1006
1007         srvstr_get_path(ctx, params, req->flags2, &fname,
1008                         params+53, parameter_count-53,
1009                         STR_TERMINATE, &status);
1010         if (!NT_STATUS_IS_OK(status)) {
1011                 reply_nterror(req, status);
1012                 goto out;
1013         }
1014
1015         status = filename_convert(ctx,
1016                                 conn,
1017                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
1018                                 fname,
1019                                 &smb_fname,
1020                                 &fname);
1021
1022         if (!NT_STATUS_IS_OK(status)) {
1023                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1024                         reply_botherror(req,
1025                                 NT_STATUS_PATH_NOT_COVERED,
1026                                 ERRSRV, ERRbadpath);
1027                         goto out;
1028                 }
1029                 reply_nterror(req, status);
1030                 goto out;
1031         }
1032
1033         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1034         if (oplock_request) {
1035                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1036                         ? BATCH_OPLOCK : 0;
1037         }
1038
1039         status = SMB_VFS_CREATE_FILE(
1040                 conn,                                   /* conn */
1041                 req,                                    /* req */
1042                 root_dir_fid,                           /* root_dir_fid */
1043                 smb_fname,                              /* fname */
1044                 access_mask,                            /* access_mask */
1045                 share_access,                           /* share_access */
1046                 create_disposition,                     /* create_disposition*/
1047                 create_options,                         /* create_options */
1048                 file_attributes,                        /* file_attributes */
1049                 oplock_request,                         /* oplock_request */
1050                 allocation_size,                        /* allocation_size */
1051                 sd,                                     /* sd */
1052                 ea_list,                                /* ea_list */
1053                 &fsp,                                   /* result */
1054                 &info);                                 /* pinfo */
1055
1056         if(!NT_STATUS_IS_OK(status)) {
1057                 if (open_was_deferred(req->mid)) {
1058                         /* We have re-scheduled this call, no error. */
1059                         return;
1060                 }
1061                 reply_openerror(req, status);
1062                 goto out;
1063         }
1064
1065         /*
1066          * If the caller set the extended oplock request bit
1067          * and we granted one (by whatever means) - set the
1068          * correct bit for extended oplock reply.
1069          */
1070
1071         if (oplock_request &&
1072             (lp_fake_oplocks(SNUM(conn))
1073              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1074
1075                 /*
1076                  * Exclusive oplock granted
1077                  */
1078
1079                 if (flags & REQUEST_BATCH_OPLOCK) {
1080                         oplock_granted = BATCH_OPLOCK_RETURN;
1081                 } else {
1082                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1083                 }
1084         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1085                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1086         } else {
1087                 oplock_granted = NO_OPLOCK_RETURN;
1088         }
1089
1090         file_len = smb_fname->st.st_ex_size;
1091         fattr = dos_mode(conn, fsp->fsp_name, &smb_fname->st);
1092         if (fattr == 0) {
1093                 fattr = FILE_ATTRIBUTE_NORMAL;
1094         }
1095
1096         /* Realloc the size of parameters and data we will return */
1097         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1098                 /* Extended response is 32 more byyes. */
1099                 param_len = 101;
1100         } else {
1101                 param_len = 69;
1102         }
1103         params = nttrans_realloc(ppparams, param_len);
1104         if(params == NULL) {
1105                 reply_doserror(req, ERRDOS, ERRnomem);
1106                 goto out;
1107         }
1108
1109         p = params;
1110         SCVAL(p, 0, oplock_granted);
1111
1112         p += 2;
1113         SSVAL(p,0,fsp->fnum);
1114         p += 2;
1115         if ((create_disposition == FILE_SUPERSEDE)
1116             && (info == FILE_WAS_OVERWRITTEN)) {
1117                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1118         } else {
1119                 SIVAL(p,0,info);
1120         }
1121         p += 8;
1122
1123         /* Create time. */
1124         c_timespec = smb_fname->st.st_ex_btime;
1125         a_timespec = smb_fname->st.st_ex_atime;
1126         m_timespec = smb_fname->st.st_ex_mtime;
1127
1128         if (lp_dos_filetime_resolution(SNUM(conn))) {
1129                 dos_filetime_timespec(&c_timespec);
1130                 dos_filetime_timespec(&a_timespec);
1131                 dos_filetime_timespec(&m_timespec);
1132         }
1133
1134         put_long_date_timespec(p, c_timespec); /* create time. */
1135         p += 8;
1136         put_long_date_timespec(p, a_timespec); /* access time */
1137         p += 8;
1138         put_long_date_timespec(p, m_timespec); /* write time */
1139         p += 8;
1140         put_long_date_timespec(p, m_timespec); /* change time */
1141         p += 8;
1142         SIVAL(p,0,fattr); /* File Attributes. */
1143         p += 4;
1144         SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1145         p += 8;
1146         SOFF_T(p,0,file_len);
1147         p += 8;
1148         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1149                 SSVAL(p,2,0x7);
1150         }
1151         p += 4;
1152         SCVAL(p,0,fsp->is_directory ? 1 : 0);
1153
1154         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1155                 uint32 perms = 0;
1156                 p += 25;
1157                 if (fsp->is_directory ||
1158                     can_write_to_file(conn, smb_fname)) {
1159                         perms = FILE_GENERIC_ALL;
1160                 } else {
1161                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
1162                 }
1163                 SIVAL(p,0,perms);
1164         }
1165
1166         DEBUG(5,("call_nt_transact_create: open name = %s\n", fsp->fsp_name));
1167
1168         /* Send the required number of replies */
1169         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1170  out:
1171         TALLOC_FREE(smb_fname);
1172         return;
1173 }
1174
1175 /****************************************************************************
1176  Reply to a NT CANCEL request.
1177  conn POINTER CAN BE NULL HERE !
1178 ****************************************************************************/
1179
1180 void reply_ntcancel(struct smb_request *req)
1181 {
1182         /*
1183          * Go through and cancel any pending change notifies.
1184          */
1185
1186         START_PROFILE(SMBntcancel);
1187         srv_cancel_sign_response(smbd_server_conn);
1188         remove_pending_change_notify_requests_by_mid(req->mid);
1189         remove_pending_lock_requests_by_mid(req->mid);
1190
1191         DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", req->mid));
1192
1193         END_PROFILE(SMBntcancel);
1194         return;
1195 }
1196
1197 /****************************************************************************
1198  Copy a file.
1199 ****************************************************************************/
1200
1201 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1202                                 connection_struct *conn,
1203                                 struct smb_request *req,
1204                                 struct smb_filename *smb_fname_src,
1205                                 struct smb_filename *smb_fname_dst,
1206                                 uint32 attrs)
1207 {
1208         char *oldname = NULL;
1209         char *newname = NULL;
1210         files_struct *fsp1,*fsp2;
1211         uint32 fattr;
1212         int info;
1213         SMB_OFF_T ret=-1;
1214         NTSTATUS status = NT_STATUS_OK;
1215         char *parent;
1216
1217         if (!CAN_WRITE(conn)) {
1218                 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1219                 goto out;
1220         }
1221
1222         /* Source must already exist. */
1223         if (!VALID_STAT(smb_fname_src->st)) {
1224                 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1225                 goto out;
1226         }
1227
1228         status = get_full_smb_filename(ctx, smb_fname_src, &oldname);
1229         if (!NT_STATUS_IS_OK(status)) {
1230                 goto out;
1231         }
1232
1233         /* Ensure attributes match. */
1234         fattr = dos_mode(conn, oldname, &smb_fname_src->st);
1235         if ((fattr & ~attrs) & (aHIDDEN | aSYSTEM)) {
1236                 status = NT_STATUS_NO_SUCH_FILE;
1237                 goto out;
1238         }
1239
1240         /* Disallow if dst file already exists. */
1241         if (VALID_STAT(smb_fname_dst->st)) {
1242                 status = NT_STATUS_OBJECT_NAME_COLLISION;
1243                 goto out;
1244         }
1245
1246         /* No links from a directory. */
1247         if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1248                 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1249                 goto out;
1250         }
1251
1252         DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1253                   smb_fname_str_dbg(smb_fname_src),
1254                   smb_fname_str_dbg(smb_fname_dst)));
1255
1256         status = SMB_VFS_CREATE_FILE(
1257                 conn,                                   /* conn */
1258                 req,                                    /* req */
1259                 0,                                      /* root_dir_fid */
1260                 smb_fname_src,                          /* fname */
1261                 FILE_READ_DATA,                         /* access_mask */
1262                 (FILE_SHARE_READ | FILE_SHARE_WRITE |   /* share_access */
1263                     FILE_SHARE_DELETE),
1264                 FILE_OPEN,                              /* create_disposition*/
1265                 0,                                      /* create_options */
1266                 FILE_ATTRIBUTE_NORMAL,                  /* file_attributes */
1267                 NO_OPLOCK,                              /* oplock_request */
1268                 0,                                      /* allocation_size */
1269                 NULL,                                   /* sd */
1270                 NULL,                                   /* ea_list */
1271                 &fsp1,                                  /* result */
1272                 &info);                                 /* pinfo */
1273
1274         if (!NT_STATUS_IS_OK(status)) {
1275                 goto out;
1276         }
1277
1278         status = SMB_VFS_CREATE_FILE(
1279                 conn,                                   /* conn */
1280                 req,                                    /* req */
1281                 0,                                      /* root_dir_fid */
1282                 smb_fname_dst,                          /* fname */
1283                 FILE_WRITE_DATA,                        /* access_mask */
1284                 (FILE_SHARE_READ | FILE_SHARE_WRITE |   /* share_access */
1285                     FILE_SHARE_DELETE),
1286                 FILE_CREATE,                            /* create_disposition*/
1287                 0,                                      /* create_options */
1288                 fattr,                                  /* file_attributes */
1289                 NO_OPLOCK,                              /* oplock_request */
1290                 0,                                      /* allocation_size */
1291                 NULL,                                   /* sd */
1292                 NULL,                                   /* ea_list */
1293                 &fsp2,                                  /* result */
1294                 &info);                                 /* pinfo */
1295
1296         if (!NT_STATUS_IS_OK(status)) {
1297                 close_file(NULL, fsp1, ERROR_CLOSE);
1298                 goto out;
1299         }
1300
1301         if (smb_fname_src->st.st_ex_size) {
1302                 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1303         }
1304
1305         /*
1306          * As we are opening fsp1 read-only we only expect
1307          * an error on close on fsp2 if we are out of space.
1308          * Thus we don't look at the error return from the
1309          * close of fsp1.
1310          */
1311         close_file(NULL, fsp1, NORMAL_CLOSE);
1312
1313         /* Ensure the modtime is set correctly on the destination file. */
1314         set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1315
1316         status = close_file(NULL, fsp2, NORMAL_CLOSE);
1317
1318         status = get_full_smb_filename(ctx, smb_fname_dst, &newname);
1319         if (!NT_STATUS_IS_OK(status)) {
1320                 goto out;
1321         }
1322
1323         /* Grrr. We have to do this as open_file_ntcreate adds aARCH when it
1324            creates the file. This isn't the correct thing to do in the copy
1325            case. JRA */
1326         if (!parent_dirname(talloc_tos(), newname, &parent, NULL)) {
1327                 status = NT_STATUS_NO_MEMORY;
1328                 goto out;
1329         }
1330         file_set_dosmode(conn, newname, fattr, &smb_fname_dst->st, parent,
1331                          false);
1332         TALLOC_FREE(parent);
1333
1334         if (ret < (SMB_OFF_T)smb_fname_src->st.st_ex_size) {
1335                 status = NT_STATUS_DISK_FULL;
1336                 goto out;
1337         }
1338  out:
1339         if (!NT_STATUS_IS_OK(status)) {
1340                 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1341                         nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1342                         smb_fname_str_dbg(smb_fname_dst)));
1343         }
1344
1345         TALLOC_FREE(oldname);
1346         TALLOC_FREE(newname);
1347
1348         return status;
1349 }
1350
1351 /****************************************************************************
1352  Reply to a NT rename request.
1353 ****************************************************************************/
1354
1355 void reply_ntrename(struct smb_request *req)
1356 {
1357         connection_struct *conn = req->conn;
1358         struct smb_filename *smb_fname_old = NULL;
1359         struct smb_filename *smb_fname_new = NULL;
1360         char *oldname = NULL;
1361         char *newname = NULL;
1362         const char *p;
1363         NTSTATUS status;
1364         bool src_has_wcard = False;
1365         bool dest_has_wcard = False;
1366         uint32 attrs;
1367         uint16 rename_type;
1368         TALLOC_CTX *ctx = talloc_tos();
1369
1370         START_PROFILE(SMBntrename);
1371
1372         if (req->wct < 4) {
1373                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1374                 END_PROFILE(SMBntrename);
1375                 return;
1376         }
1377
1378         attrs = SVAL(req->vwv+0, 0);
1379         rename_type = SVAL(req->vwv+1, 0);
1380
1381         p = (const char *)req->buf + 1;
1382         p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1383                                        &status, &src_has_wcard);
1384         if (!NT_STATUS_IS_OK(status)) {
1385                 reply_nterror(req, status);
1386                 END_PROFILE(SMBntrename);
1387                 return;
1388         }
1389
1390         if (ms_has_wild(oldname)) {
1391                 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1392                 END_PROFILE(SMBntrename);
1393                 return;
1394         }
1395
1396         p++;
1397         p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1398                                        &status, &dest_has_wcard);
1399         if (!NT_STATUS_IS_OK(status)) {
1400                 reply_nterror(req, status);
1401                 END_PROFILE(SMBntrename);
1402                 return;
1403         }
1404
1405         status = filename_convert(ctx, conn,
1406                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
1407                                 oldname,
1408                                 &smb_fname_old,
1409                                 &oldname);
1410         if (!NT_STATUS_IS_OK(status)) {
1411                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1412                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1413                                         ERRSRV, ERRbadpath);
1414                         END_PROFILE(SMBntrename);
1415                         return;
1416                 }
1417                 reply_nterror(req, status);
1418                 END_PROFILE(SMBntrename);
1419                 return;
1420         }
1421
1422         status = filename_convert(ctx, conn,
1423                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
1424                                 newname,
1425                                 &smb_fname_new,
1426                                 &newname);
1427         if (!NT_STATUS_IS_OK(status)) {
1428                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1429                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1430                                         ERRSRV, ERRbadpath);
1431                         END_PROFILE(SMBntrename);
1432                         return;
1433                 }
1434                 reply_nterror(req, status);
1435                 END_PROFILE(SMBntrename);
1436                 return;
1437         }
1438
1439         /* The new name must begin with a ':' if the old name is a stream. */
1440         if (is_ntfs_stream_name(oldname) && (newname[0] != ':')) {
1441                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1442                 END_PROFILE(SMBntrename);
1443                 return;
1444         }
1445
1446         DEBUG(3,("reply_ntrename : %s -> %s\n",oldname,newname));
1447
1448         switch(rename_type) {
1449                 case RENAME_FLAG_RENAME:
1450                         status = rename_internals(ctx, conn, req, oldname,
1451                                         newname, attrs, False, src_has_wcard,
1452                                         dest_has_wcard, DELETE_ACCESS);
1453                         break;
1454                 case RENAME_FLAG_HARD_LINK:
1455                         if (src_has_wcard || dest_has_wcard) {
1456                                 /* No wildcards. */
1457                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1458                         } else {
1459                                 status = hardlink_internals(ctx,
1460                                                 conn,
1461                                                 smb_fname_old,
1462                                                 smb_fname_new);
1463                         }
1464                         break;
1465                 case RENAME_FLAG_COPY:
1466                         if (src_has_wcard || dest_has_wcard) {
1467                                 /* No wildcards. */
1468                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1469                         } else {
1470                                 status = copy_internals(ctx, conn, req,
1471                                                         smb_fname_old,
1472                                                         smb_fname_new,
1473                                                         attrs);
1474                         }
1475                         break;
1476                 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1477                         status = NT_STATUS_INVALID_PARAMETER;
1478                         break;
1479                 default:
1480                         status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1481                         break;
1482         }
1483
1484         if (!NT_STATUS_IS_OK(status)) {
1485                 if (open_was_deferred(req->mid)) {
1486                         /* We have re-scheduled this call. */
1487                         END_PROFILE(SMBntrename);
1488                         return;
1489                 }
1490
1491                 reply_nterror(req, status);
1492                 END_PROFILE(SMBntrename);
1493                 return;
1494         }
1495
1496         reply_outbuf(req, 0, 0);
1497
1498         END_PROFILE(SMBntrename);
1499         return;
1500 }
1501
1502 /****************************************************************************
1503  Reply to a notify change - queue the request and
1504  don't allow a directory to be opened.
1505 ****************************************************************************/
1506
1507 static void call_nt_transact_notify_change(connection_struct *conn,
1508                                            struct smb_request *req,
1509                                            uint16 **ppsetup,
1510                                            uint32 setup_count,
1511                                            char **ppparams,
1512                                            uint32 parameter_count,
1513                                            char **ppdata, uint32 data_count,
1514                                            uint32 max_data_count,
1515                                            uint32 max_param_count)
1516 {
1517         uint16 *setup = *ppsetup;
1518         files_struct *fsp;
1519         uint32 filter;
1520         NTSTATUS status;
1521         bool recursive;
1522
1523         if(setup_count < 6) {
1524                 reply_doserror(req, ERRDOS, ERRbadfunc);
1525                 return;
1526         }
1527
1528         fsp = file_fsp(req, SVAL(setup,4));
1529         filter = IVAL(setup, 0);
1530         recursive = (SVAL(setup, 6) != 0) ? True : False;
1531
1532         DEBUG(3,("call_nt_transact_notify_change\n"));
1533
1534         if(!fsp) {
1535                 reply_doserror(req, ERRDOS, ERRbadfid);
1536                 return;
1537         }
1538
1539         {
1540                 char *filter_string;
1541
1542                 if (!(filter_string = notify_filter_string(NULL, filter))) {
1543                         reply_nterror(req,NT_STATUS_NO_MEMORY);
1544                         return;
1545                 }
1546
1547                 DEBUG(3,("call_nt_transact_notify_change: notify change "
1548                          "called on %s, filter = %s, recursive = %d\n",
1549                          fsp->fsp_name, filter_string, recursive));
1550
1551                 TALLOC_FREE(filter_string);
1552         }
1553
1554         if((!fsp->is_directory) || (conn != fsp->conn)) {
1555                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1556                 return;
1557         }
1558
1559         if (fsp->notify == NULL) {
1560
1561                 status = change_notify_create(fsp, filter, recursive);
1562
1563                 if (!NT_STATUS_IS_OK(status)) {
1564                         DEBUG(10, ("change_notify_create returned %s\n",
1565                                    nt_errstr(status)));
1566                         reply_nterror(req, status);
1567                         return;
1568                 }
1569         }
1570
1571         if (fsp->notify->num_changes != 0) {
1572
1573                 /*
1574                  * We've got changes pending, respond immediately
1575                  */
1576
1577                 /*
1578                  * TODO: write a torture test to check the filtering behaviour
1579                  * here.
1580                  */
1581
1582                 change_notify_reply(fsp->conn, req, max_param_count,
1583                                     fsp->notify);
1584
1585                 /*
1586                  * change_notify_reply() above has independently sent its
1587                  * results
1588                  */
1589                 return;
1590         }
1591
1592         /*
1593          * No changes pending, queue the request
1594          */
1595
1596         status = change_notify_add_request(req,
1597                         max_param_count,
1598                         filter,
1599                         recursive, fsp);
1600         if (!NT_STATUS_IS_OK(status)) {
1601                 reply_nterror(req, status);
1602         }
1603         return;
1604 }
1605
1606 /****************************************************************************
1607  Reply to an NT transact rename command.
1608 ****************************************************************************/
1609
1610 static void call_nt_transact_rename(connection_struct *conn,
1611                                     struct smb_request *req,
1612                                     uint16 **ppsetup, uint32 setup_count,
1613                                     char **ppparams, uint32 parameter_count,
1614                                     char **ppdata, uint32 data_count,
1615                                     uint32 max_data_count)
1616 {
1617         char *params = *ppparams;
1618         char *new_name = NULL;
1619         files_struct *fsp = NULL;
1620         bool dest_has_wcard = False;
1621         NTSTATUS status;
1622         TALLOC_CTX *ctx = talloc_tos();
1623
1624         if(parameter_count < 5) {
1625                 reply_doserror(req, ERRDOS, ERRbadfunc);
1626                 return;
1627         }
1628
1629         fsp = file_fsp(req, SVAL(params, 0));
1630         if (!check_fsp(conn, req, fsp)) {
1631                 return;
1632         }
1633         srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1634                               parameter_count - 4,
1635                               STR_TERMINATE, &status, &dest_has_wcard);
1636         if (!NT_STATUS_IS_OK(status)) {
1637                 reply_nterror(req, status);
1638                 return;
1639         }
1640
1641         /*
1642          * W2K3 ignores this request as the RAW-RENAME test
1643          * demonstrates, so we do.
1644          */
1645         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1646
1647         DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1648                  fsp->fsp_name, new_name));
1649
1650         return;
1651 }
1652
1653 /******************************************************************************
1654  Fake up a completely empty SD.
1655 *******************************************************************************/
1656
1657 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
1658 {
1659         size_t sd_size;
1660
1661         *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1662         if(!*ppsd) {
1663                 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1664                 return NT_STATUS_NO_MEMORY;
1665         }
1666
1667         return NT_STATUS_OK;
1668 }
1669
1670 /****************************************************************************
1671  Reply to query a security descriptor.
1672 ****************************************************************************/
1673
1674 static void call_nt_transact_query_security_desc(connection_struct *conn,
1675                                                  struct smb_request *req,
1676                                                  uint16 **ppsetup,
1677                                                  uint32 setup_count,
1678                                                  char **ppparams,
1679                                                  uint32 parameter_count,
1680                                                  char **ppdata,
1681                                                  uint32 data_count,
1682                                                  uint32 max_data_count)
1683 {
1684         char *params = *ppparams;
1685         char *data = *ppdata;
1686         SEC_DESC *psd = NULL;
1687         size_t sd_size;
1688         uint32 security_info_wanted;
1689         files_struct *fsp = NULL;
1690         NTSTATUS status;
1691         DATA_BLOB blob;
1692
1693         if(parameter_count < 8) {
1694                 reply_doserror(req, ERRDOS, ERRbadfunc);
1695                 return;
1696         }
1697
1698         fsp = file_fsp(req, SVAL(params,0));
1699         if(!fsp) {
1700                 reply_doserror(req, ERRDOS, ERRbadfid);
1701                 return;
1702         }
1703
1704         security_info_wanted = IVAL(params,4);
1705
1706         DEBUG(3,("call_nt_transact_query_security_desc: file = %s, info_wanted = 0x%x\n", fsp->fsp_name,
1707                         (unsigned int)security_info_wanted ));
1708
1709         params = nttrans_realloc(ppparams, 4);
1710         if(params == NULL) {
1711                 reply_doserror(req, ERRDOS, ERRnomem);
1712                 return;
1713         }
1714
1715         /*
1716          * Get the permissions to return.
1717          */
1718
1719         if (!lp_nt_acl_support(SNUM(conn))) {
1720                 status = get_null_nt_acl(talloc_tos(), &psd);
1721         } else {
1722                 status = SMB_VFS_FGET_NT_ACL(
1723                         fsp, security_info_wanted, &psd);
1724         }
1725         if (!NT_STATUS_IS_OK(status)) {
1726                 reply_nterror(req, status);
1727                 return;
1728         }
1729
1730         /* If the SACL/DACL is NULL, but was requested, we mark that it is
1731          * present in the reply to match Windows behavior */
1732         if (psd->sacl == NULL &&
1733             security_info_wanted & SACL_SECURITY_INFORMATION)
1734                 psd->type |= SEC_DESC_SACL_PRESENT;
1735         if (psd->dacl == NULL &&
1736             security_info_wanted & DACL_SECURITY_INFORMATION)
1737                 psd->type |= SEC_DESC_DACL_PRESENT;
1738
1739         sd_size = ndr_size_security_descriptor(psd, NULL, 0);
1740
1741         DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %lu.\n",(unsigned long)sd_size));
1742
1743         if (DEBUGLEVEL >= 10) {
1744                 DEBUG(10,("call_nt_transact_query_security_desc for file %s\n", fsp->fsp_name));
1745                 NDR_PRINT_DEBUG(security_descriptor, psd);
1746         }
1747
1748         SIVAL(params,0,(uint32)sd_size);
1749
1750         if (max_data_count < sd_size) {
1751                 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1752                                 params, 4, *ppdata, 0);
1753                 return;
1754         }
1755
1756         /*
1757          * Allocate the data we will point this at.
1758          */
1759
1760         data = nttrans_realloc(ppdata, sd_size);
1761         if(data == NULL) {
1762                 reply_doserror(req, ERRDOS, ERRnomem);
1763                 return;
1764         }
1765
1766         status = marshall_sec_desc(talloc_tos(), psd,
1767                                    &blob.data, &blob.length);
1768
1769         if (!NT_STATUS_IS_OK(status)) {
1770                 reply_nterror(req, status);
1771                 return;
1772         }
1773
1774         SMB_ASSERT(sd_size == blob.length);
1775         memcpy(data, blob.data, sd_size);
1776
1777         send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
1778
1779         return;
1780 }
1781
1782 /****************************************************************************
1783  Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
1784 ****************************************************************************/
1785
1786 static void call_nt_transact_set_security_desc(connection_struct *conn,
1787                                                struct smb_request *req,
1788                                                uint16 **ppsetup,
1789                                                uint32 setup_count,
1790                                                char **ppparams,
1791                                                uint32 parameter_count,
1792                                                char **ppdata,
1793                                                uint32 data_count,
1794                                                uint32 max_data_count)
1795 {
1796         char *params= *ppparams;
1797         char *data = *ppdata;
1798         files_struct *fsp = NULL;
1799         uint32 security_info_sent = 0;
1800         NTSTATUS status;
1801
1802         if(parameter_count < 8) {
1803                 reply_doserror(req, ERRDOS, ERRbadfunc);
1804                 return;
1805         }
1806
1807         if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
1808                 reply_doserror(req, ERRDOS, ERRbadfid);
1809                 return;
1810         }
1811
1812         if(!lp_nt_acl_support(SNUM(conn))) {
1813                 goto done;
1814         }
1815
1816         security_info_sent = IVAL(params,4);
1817
1818         DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n", fsp->fsp_name,
1819                 (unsigned int)security_info_sent ));
1820
1821         if (data_count == 0) {
1822                 reply_doserror(req, ERRDOS, ERRnoaccess);
1823                 return;
1824         }
1825
1826         status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
1827
1828         if (!NT_STATUS_IS_OK(status)) {
1829                 reply_nterror(req, status);
1830                 return;
1831         }
1832
1833   done:
1834         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1835         return;
1836 }
1837
1838 /****************************************************************************
1839  Reply to NT IOCTL
1840 ****************************************************************************/
1841
1842 static void call_nt_transact_ioctl(connection_struct *conn,
1843                                    struct smb_request *req,
1844                                    uint16 **ppsetup, uint32 setup_count,
1845                                    char **ppparams, uint32 parameter_count,
1846                                    char **ppdata, uint32 data_count,
1847                                    uint32 max_data_count)
1848 {
1849         uint32 function;
1850         uint16 fidnum;
1851         files_struct *fsp;
1852         uint8 isFSctl;
1853         uint8 compfilter;
1854         char *pdata = *ppdata;
1855
1856         if (setup_count != 8) {
1857                 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
1858                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1859                 return;
1860         }
1861
1862         function = IVAL(*ppsetup, 0);
1863         fidnum = SVAL(*ppsetup, 4);
1864         isFSctl = CVAL(*ppsetup, 6);
1865         compfilter = CVAL(*ppsetup, 7);
1866
1867         DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n", 
1868                  function, fidnum, isFSctl, compfilter));
1869
1870         fsp=file_fsp(req, fidnum);
1871         /* this check is done in each implemented function case for now
1872            because I don't want to break anything... --metze
1873         FSP_BELONGS_CONN(fsp,conn);*/
1874
1875         SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
1876
1877         switch (function) {
1878         case FSCTL_SET_SPARSE:
1879                 /* pretend this succeeded - tho strictly we should
1880                    mark the file sparse (if the local fs supports it)
1881                    so we can know if we need to pre-allocate or not */
1882
1883                 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum));
1884                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1885                 return;
1886
1887         case FSCTL_CREATE_OR_GET_OBJECT_ID:
1888         {
1889                 unsigned char objid[16];
1890
1891                 /* This should return the object-id on this file.
1892                  * I think I'll make this be the inode+dev. JRA.
1893                  */
1894
1895                 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
1896
1897                 if (!fsp_belongs_conn(conn, req, fsp)) {
1898                         return;
1899                 }
1900
1901                 data_count = 64;
1902                 pdata = nttrans_realloc(ppdata, data_count);
1903                 if (pdata == NULL) {
1904                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1905                         return;
1906                 }
1907
1908                 /* For backwards compatibility only store the dev/inode. */
1909                 push_file_id_16(pdata, &fsp->file_id);
1910                 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
1911                 push_file_id_16(pdata+32, &fsp->file_id);
1912                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
1913                                 pdata, data_count);
1914                 return;
1915         }
1916
1917         case FSCTL_GET_REPARSE_POINT:
1918                 /* pretend this fail - my winXP does it like this
1919                  * --metze
1920                  */
1921
1922                 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1923                 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1924                 return;
1925
1926         case FSCTL_SET_REPARSE_POINT:
1927                 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
1928                  * --metze
1929                  */
1930
1931                 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1932                 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1933                 return;
1934
1935         case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
1936         {
1937                 /*
1938                  * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
1939                  * and return their volume names.  If max_data_count is 16, then it is just
1940                  * asking for the number of volumes and length of the combined names.
1941                  *
1942                  * pdata is the data allocated by our caller, but that uses
1943                  * total_data_count (which is 0 in our case) rather than max_data_count.
1944                  * Allocate the correct amount and return the pointer to let
1945                  * it be deallocated when we return.
1946                  */
1947                 SHADOW_COPY_DATA *shadow_data = NULL;
1948                 TALLOC_CTX *shadow_mem_ctx = NULL;
1949                 bool labels = False;
1950                 uint32 labels_data_count = 0;
1951                 uint32 i;
1952                 char *cur_pdata;
1953
1954                 if (!fsp_belongs_conn(conn, req, fsp)) {
1955                         return;
1956                 }
1957
1958                 if (max_data_count < 16) {
1959                         DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
1960                                 max_data_count));
1961                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1962                         return;
1963                 }
1964
1965                 if (max_data_count > 16) {
1966                         labels = True;
1967                 }
1968
1969                 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
1970                 if (shadow_mem_ctx == NULL) {
1971                         DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
1972                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1973                         return;
1974                 }
1975
1976                 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
1977                 if (shadow_data == NULL) {
1978                         DEBUG(0,("TALLOC_ZERO() failed!\n"));
1979                         talloc_destroy(shadow_mem_ctx);
1980                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1981                         return;
1982                 }
1983
1984                 shadow_data->mem_ctx = shadow_mem_ctx;
1985
1986                 /*
1987                  * Call the VFS routine to actually do the work.
1988                  */
1989                 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
1990                         talloc_destroy(shadow_data->mem_ctx);
1991                         if (errno == ENOSYS) {
1992                                 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n", 
1993                                         conn->connectpath));
1994                                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1995                                 return;
1996                         } else {
1997                                 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n", 
1998                                         conn->connectpath));
1999                                 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
2000                                 return;
2001                         }
2002                 }
2003
2004                 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
2005
2006                 if (!labels) {
2007                         data_count = 16;
2008                 } else {
2009                         data_count = 12+labels_data_count+4;
2010                 }
2011
2012                 if (max_data_count<data_count) {
2013                         DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
2014                                 max_data_count,data_count));
2015                         talloc_destroy(shadow_data->mem_ctx);
2016                         reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
2017                         return;
2018                 }
2019
2020                 pdata = nttrans_realloc(ppdata, data_count);
2021                 if (pdata == NULL) {
2022                         talloc_destroy(shadow_data->mem_ctx);
2023                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2024                         return;
2025                 }
2026
2027                 cur_pdata = pdata;
2028
2029                 /* num_volumes 4 bytes */
2030                 SIVAL(pdata,0,shadow_data->num_volumes);
2031
2032                 if (labels) {
2033                         /* num_labels 4 bytes */
2034                         SIVAL(pdata,4,shadow_data->num_volumes);
2035                 }
2036
2037                 /* needed_data_count 4 bytes */
2038                 SIVAL(pdata,8,labels_data_count);
2039
2040                 cur_pdata+=12;
2041
2042                 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
2043                         shadow_data->num_volumes,fsp->fsp_name));
2044                 if (labels && shadow_data->labels) {
2045                         for (i=0;i<shadow_data->num_volumes;i++) {
2046                                 srvstr_push(pdata, req->flags2,
2047                                             cur_pdata, shadow_data->labels[i],
2048                                             2*sizeof(SHADOW_COPY_LABEL),
2049                                             STR_UNICODE|STR_TERMINATE);
2050                                 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
2051                                 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
2052                         }
2053                 }
2054
2055                 talloc_destroy(shadow_data->mem_ctx);
2056
2057                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2058                                 pdata, data_count);
2059
2060                 return;
2061         }
2062
2063         case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
2064         {
2065                 /* pretend this succeeded -
2066                  *
2067                  * we have to send back a list with all files owned by this SID
2068                  *
2069                  * but I have to check that --metze
2070                  */
2071                 DOM_SID sid;
2072                 uid_t uid;
2073                 size_t sid_len = MIN(data_count-4,SID_MAX_SIZE);
2074
2075                 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
2076
2077                 if (!fsp_belongs_conn(conn, req, fsp)) {
2078                         return;
2079                 }
2080
2081                 /* unknown 4 bytes: this is not the length of the sid :-(  */
2082                 /*unknown = IVAL(pdata,0);*/
2083
2084                 sid_parse(pdata+4,sid_len,&sid);
2085                 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
2086
2087                 if (!sid_to_uid(&sid, &uid)) {
2088                         DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
2089                                  sid_string_dbg(&sid),
2090                                  (unsigned long)sid_len));
2091                         uid = (-1);
2092                 }
2093
2094                 /* we can take a look at the find source :-)
2095                  *
2096                  * find ./ -uid $uid  -name '*'   is what we need here
2097                  *
2098                  *
2099                  * and send 4bytes len and then NULL terminated unicode strings
2100                  * for each file
2101                  *
2102                  * but I don't know how to deal with the paged results
2103                  * (maybe we can hang the result anywhere in the fsp struct)
2104                  *
2105                  * we don't send all files at once
2106                  * and at the next we should *not* start from the beginning,
2107                  * so we have to cache the result
2108                  *
2109                  * --metze
2110                  */
2111
2112                 /* this works for now... */
2113                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2114                 return;
2115         }
2116         default:
2117                 if (!logged_ioctl_message) {
2118                         logged_ioctl_message = true; /* Only print this once... */
2119                         DEBUG(0,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n",
2120                                  function));
2121                 }
2122         }
2123
2124         reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2125 }
2126
2127
2128 #ifdef HAVE_SYS_QUOTAS
2129 /****************************************************************************
2130  Reply to get user quota
2131 ****************************************************************************/
2132
2133 static void call_nt_transact_get_user_quota(connection_struct *conn,
2134                                             struct smb_request *req,
2135                                             uint16 **ppsetup,
2136                                             uint32 setup_count,
2137                                             char **ppparams,
2138                                             uint32 parameter_count,
2139                                             char **ppdata,
2140                                             uint32 data_count,
2141                                             uint32 max_data_count)
2142 {
2143         NTSTATUS nt_status = NT_STATUS_OK;
2144         char *params = *ppparams;
2145         char *pdata = *ppdata;
2146         char *entry;
2147         int data_len=0,param_len=0;
2148         int qt_len=0;
2149         int entry_len = 0;
2150         files_struct *fsp = NULL;
2151         uint16 level = 0;
2152         size_t sid_len;
2153         DOM_SID sid;
2154         bool start_enum = True;
2155         SMB_NTQUOTA_STRUCT qt;
2156         SMB_NTQUOTA_LIST *tmp_list;
2157         SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2158
2159         ZERO_STRUCT(qt);
2160
2161         /* access check */
2162         if (conn->server_info->utok.uid != 0) {
2163                 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2164                          "[%s]\n", lp_servicename(SNUM(conn)),
2165                          conn->server_info->unix_name));
2166                 reply_doserror(req, ERRDOS, ERRnoaccess);
2167                 return;
2168         }
2169
2170         /*
2171          * Ensure minimum number of parameters sent.
2172          */
2173
2174         if (parameter_count < 4) {
2175                 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2176                 reply_doserror(req, ERRDOS, ERRinvalidparam);
2177                 return;
2178         }
2179
2180         /* maybe we can check the quota_fnum */
2181         fsp = file_fsp(req, SVAL(params,0));
2182         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2183                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2184                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2185                 return;
2186         }
2187
2188         /* the NULL pointer checking for fsp->fake_file_handle->pd
2189          * is done by CHECK_NTQUOTA_HANDLE_OK()
2190          */
2191         qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2192
2193         level = SVAL(params,2);
2194
2195         /* unknown 12 bytes leading in params */
2196
2197         switch (level) {
2198                 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2199                         /* seems that we should continue with the enum here --metze */
2200
2201                         if (qt_handle->quota_list!=NULL &&
2202                             qt_handle->tmp_list==NULL) {
2203
2204                                 /* free the list */
2205                                 free_ntquota_list(&(qt_handle->quota_list));
2206
2207                                 /* Realloc the size of parameters and data we will return */
2208                                 param_len = 4;
2209                                 params = nttrans_realloc(ppparams, param_len);
2210                                 if(params == NULL) {
2211                                         reply_doserror(req, ERRDOS, ERRnomem);
2212                                         return;
2213                                 }
2214
2215                                 data_len = 0;
2216                                 SIVAL(params,0,data_len);
2217
2218                                 break;
2219                         }
2220
2221                         start_enum = False;
2222
2223                 case TRANSACT_GET_USER_QUOTA_LIST_START:
2224
2225                         if (qt_handle->quota_list==NULL &&
2226                                 qt_handle->tmp_list==NULL) {
2227                                 start_enum = True;
2228                         }
2229
2230                         if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2231                                 reply_doserror(req, ERRSRV, ERRerror);
2232                                 return;
2233                         }
2234
2235                         /* Realloc the size of parameters and data we will return */
2236                         param_len = 4;
2237                         params = nttrans_realloc(ppparams, param_len);
2238                         if(params == NULL) {
2239                                 reply_doserror(req, ERRDOS, ERRnomem);
2240                                 return;
2241                         }
2242
2243                         /* we should not trust the value in max_data_count*/
2244                         max_data_count = MIN(max_data_count,2048);
2245
2246                         pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2247                         if(pdata == NULL) {
2248                                 reply_doserror(req, ERRDOS, ERRnomem);
2249                                 return;
2250                         }
2251
2252                         entry = pdata;
2253
2254                         /* set params Size of returned Quota Data 4 bytes*/
2255                         /* but set it later when we know it */
2256
2257                         /* for each entry push the data */
2258
2259                         if (start_enum) {
2260                                 qt_handle->tmp_list = qt_handle->quota_list;
2261                         }
2262
2263                         tmp_list = qt_handle->tmp_list;
2264
2265                         for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2266                                 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2267
2268                                 sid_len = ndr_size_dom_sid(
2269                                         &tmp_list->quotas->sid, NULL, 0);
2270                                 entry_len = 40 + sid_len;
2271
2272                                 /* nextoffset entry 4 bytes */
2273                                 SIVAL(entry,0,entry_len);
2274
2275                                 /* then the len of the SID 4 bytes */
2276                                 SIVAL(entry,4,sid_len);
2277
2278                                 /* unknown data 8 bytes uint64_t */
2279                                 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2280
2281                                 /* the used disk space 8 bytes uint64_t */
2282                                 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2283
2284                                 /* the soft quotas 8 bytes uint64_t */
2285                                 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2286
2287                                 /* the hard quotas 8 bytes uint64_t */
2288                                 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2289
2290                                 /* and now the SID */
2291                                 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2292                         }
2293
2294                         qt_handle->tmp_list = tmp_list;
2295
2296                         /* overwrite the offset of the last entry */
2297                         SIVAL(entry-entry_len,0,0);
2298
2299                         data_len = 4+qt_len;
2300                         /* overwrite the params quota_data_len */
2301                         SIVAL(params,0,data_len);
2302
2303                         break;
2304
2305                 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2306
2307                         /* unknown 4 bytes IVAL(pdata,0) */
2308
2309                         if (data_count < 8) {
2310                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2311                                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2312                                 return;
2313                         }
2314
2315                         sid_len = IVAL(pdata,4);
2316                         /* Ensure this is less than 1mb. */
2317                         if (sid_len > (1024*1024)) {
2318                                 reply_doserror(req, ERRDOS, ERRnomem);
2319                                 return;
2320                         }
2321
2322                         if (data_count < 8+sid_len) {
2323                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2324                                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2325                                 return;
2326                         }
2327
2328                         data_len = 4+40+sid_len;
2329
2330                         if (max_data_count < data_len) {
2331                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2332                                         max_data_count, data_len));
2333                                 param_len = 4;
2334                                 SIVAL(params,0,data_len);
2335                                 data_len = 0;
2336                                 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2337                                 break;
2338                         }
2339
2340                         sid_parse(pdata+8,sid_len,&sid);
2341
2342                         if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2343                                 ZERO_STRUCT(qt);
2344                                 /*
2345                                  * we have to return zero's in all fields
2346                                  * instead of returning an error here
2347                                  * --metze
2348                                  */
2349                         }
2350
2351                         /* Realloc the size of parameters and data we will return */
2352                         param_len = 4;
2353                         params = nttrans_realloc(ppparams, param_len);
2354                         if(params == NULL) {
2355                                 reply_doserror(req, ERRDOS, ERRnomem);
2356                                 return;
2357                         }
2358
2359                         pdata = nttrans_realloc(ppdata, data_len);
2360                         if(pdata == NULL) {
2361                                 reply_doserror(req, ERRDOS, ERRnomem);
2362                                 return;
2363                         }
2364
2365                         entry = pdata;
2366
2367                         /* set params Size of returned Quota Data 4 bytes*/
2368                         SIVAL(params,0,data_len);
2369
2370                         /* nextoffset entry 4 bytes */
2371                         SIVAL(entry,0,0);
2372
2373                         /* then the len of the SID 4 bytes */
2374                         SIVAL(entry,4,sid_len);
2375
2376                         /* unknown data 8 bytes uint64_t */
2377                         SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2378
2379                         /* the used disk space 8 bytes uint64_t */
2380                         SBIG_UINT(entry,16,qt.usedspace);
2381
2382                         /* the soft quotas 8 bytes uint64_t */
2383                         SBIG_UINT(entry,24,qt.softlim);
2384
2385                         /* the hard quotas 8 bytes uint64_t */
2386                         SBIG_UINT(entry,32,qt.hardlim);
2387
2388                         /* and now the SID */
2389                         sid_linearize(entry+40, sid_len, &sid);
2390
2391                         break;
2392
2393                 default:
2394                         DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2395                         reply_doserror(req, ERRSRV, ERRerror);
2396                         return;
2397                         break;
2398         }
2399
2400         send_nt_replies(conn, req, nt_status, params, param_len,
2401                         pdata, data_len);
2402 }
2403
2404 /****************************************************************************
2405  Reply to set user quota
2406 ****************************************************************************/
2407
2408 static void call_nt_transact_set_user_quota(connection_struct *conn,
2409                                             struct smb_request *req,
2410                                             uint16 **ppsetup,
2411                                             uint32 setup_count,
2412                                             char **ppparams,
2413                                             uint32 parameter_count,
2414                                             char **ppdata,
2415                                             uint32 data_count,
2416                                             uint32 max_data_count)
2417 {
2418         char *params = *ppparams;
2419         char *pdata = *ppdata;
2420         int data_len=0,param_len=0;
2421         SMB_NTQUOTA_STRUCT qt;
2422         size_t sid_len;
2423         DOM_SID sid;
2424         files_struct *fsp = NULL;
2425
2426         ZERO_STRUCT(qt);
2427
2428         /* access check */
2429         if (conn->server_info->utok.uid != 0) {
2430                 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2431                          "[%s]\n", lp_servicename(SNUM(conn)),
2432                          conn->server_info->unix_name));
2433                 reply_doserror(req, ERRDOS, ERRnoaccess);
2434                 return;
2435         }
2436
2437         /*
2438          * Ensure minimum number of parameters sent.
2439          */
2440
2441         if (parameter_count < 2) {
2442                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2443                 reply_doserror(req, ERRDOS, ERRinvalidparam);
2444                 return;
2445         }
2446
2447         /* maybe we can check the quota_fnum */
2448         fsp = file_fsp(req, SVAL(params,0));
2449         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2450                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2451                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2452                 return;
2453         }
2454
2455         if (data_count < 40) {
2456                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2457                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2458                 return;
2459         }
2460
2461         /* offset to next quota record.
2462          * 4 bytes IVAL(pdata,0)
2463          * unused here...
2464          */
2465
2466         /* sid len */
2467         sid_len = IVAL(pdata,4);
2468
2469         if (data_count < 40+sid_len) {
2470                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2471                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2472                 return;
2473         }
2474
2475         /* unknown 8 bytes in pdata
2476          * maybe its the change time in NTTIME
2477          */
2478
2479         /* the used space 8 bytes (uint64_t)*/
2480         qt.usedspace = (uint64_t)IVAL(pdata,16);
2481 #ifdef LARGE_SMB_OFF_T
2482         qt.usedspace |= (((uint64_t)IVAL(pdata,20)) << 32);
2483 #else /* LARGE_SMB_OFF_T */
2484         if ((IVAL(pdata,20) != 0)&&
2485                 ((qt.usedspace != 0xFFFFFFFF)||
2486                 (IVAL(pdata,20)!=0xFFFFFFFF))) {
2487                 /* more than 32 bits? */
2488                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2489                 return;
2490         }
2491 #endif /* LARGE_SMB_OFF_T */
2492
2493         /* the soft quotas 8 bytes (uint64_t)*/
2494         qt.softlim = (uint64_t)IVAL(pdata,24);
2495 #ifdef LARGE_SMB_OFF_T
2496         qt.softlim |= (((uint64_t)IVAL(pdata,28)) << 32);
2497 #else /* LARGE_SMB_OFF_T */
2498         if ((IVAL(pdata,28) != 0)&&
2499                 ((qt.softlim != 0xFFFFFFFF)||
2500                 (IVAL(pdata,28)!=0xFFFFFFFF))) {
2501                 /* more than 32 bits? */
2502                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2503                 return;
2504         }
2505 #endif /* LARGE_SMB_OFF_T */
2506
2507         /* the hard quotas 8 bytes (uint64_t)*/
2508         qt.hardlim = (uint64_t)IVAL(pdata,32);
2509 #ifdef LARGE_SMB_OFF_T
2510         qt.hardlim |= (((uint64_t)IVAL(pdata,36)) << 32);
2511 #else /* LARGE_SMB_OFF_T */
2512         if ((IVAL(pdata,36) != 0)&&
2513                 ((qt.hardlim != 0xFFFFFFFF)||
2514                 (IVAL(pdata,36)!=0xFFFFFFFF))) {
2515                 /* more than 32 bits? */
2516                 reply_doserror(req, ERRDOS, ERRunknownlevel);
2517                 return;
2518         }
2519 #endif /* LARGE_SMB_OFF_T */
2520
2521         sid_parse(pdata+40,sid_len,&sid);
2522         DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2523
2524         /* 44 unknown bytes left... */
2525
2526         if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2527                 reply_doserror(req, ERRSRV, ERRerror);
2528                 return;
2529         }
2530
2531         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2532                         pdata, data_len);
2533 }
2534 #endif /* HAVE_SYS_QUOTAS */
2535
2536 static void handle_nttrans(connection_struct *conn,
2537                            struct trans_state *state,
2538                            struct smb_request *req)
2539 {
2540         if (Protocol >= PROTOCOL_NT1) {
2541                 req->flags2 |= 0x40; /* IS_LONG_NAME */
2542                 SSVAL(req->inbuf,smb_flg2,req->flags2);
2543         }
2544
2545
2546         SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2547
2548         /* Now we must call the relevant NT_TRANS function */
2549         switch(state->call) {
2550                 case NT_TRANSACT_CREATE:
2551                 {
2552                         START_PROFILE(NT_transact_create);
2553                         call_nt_transact_create(
2554                                 conn, req,
2555                                 &state->setup, state->setup_count,
2556                                 &state->param, state->total_param,
2557                                 &state->data, state->total_data,
2558                                 state->max_data_return);
2559                         END_PROFILE(NT_transact_create);
2560                         break;
2561                 }
2562
2563                 case NT_TRANSACT_IOCTL:
2564                 {
2565                         START_PROFILE(NT_transact_ioctl);
2566                         call_nt_transact_ioctl(
2567                                 conn, req,
2568                                 &state->setup, state->setup_count,
2569                                 &state->param, state->total_param,
2570                                 &state->data, state->total_data,
2571                                 state->max_data_return);
2572                         END_PROFILE(NT_transact_ioctl);
2573                         break;
2574                 }
2575
2576                 case NT_TRANSACT_SET_SECURITY_DESC:
2577                 {
2578                         START_PROFILE(NT_transact_set_security_desc);
2579                         call_nt_transact_set_security_desc(
2580                                 conn, req,
2581                                 &state->setup, state->setup_count,
2582                                 &state->param, state->total_param,
2583                                 &state->data, state->total_data,
2584                                 state->max_data_return);
2585                         END_PROFILE(NT_transact_set_security_desc);
2586                         break;
2587                 }
2588
2589                 case NT_TRANSACT_NOTIFY_CHANGE:
2590                 {
2591                         START_PROFILE(NT_transact_notify_change);
2592                         call_nt_transact_notify_change(
2593                                 conn, req,
2594                                 &state->setup, state->setup_count,
2595                                 &state->param, state->total_param,
2596                                 &state->data, state->total_data,
2597                                 state->max_data_return,
2598                                 state->max_param_return);
2599                         END_PROFILE(NT_transact_notify_change);
2600                         break;
2601                 }
2602
2603                 case NT_TRANSACT_RENAME:
2604                 {
2605                         START_PROFILE(NT_transact_rename);
2606                         call_nt_transact_rename(
2607                                 conn, req,
2608                                 &state->setup, state->setup_count,
2609                                 &state->param, state->total_param,
2610                                 &state->data, state->total_data,
2611                                 state->max_data_return);
2612                         END_PROFILE(NT_transact_rename);
2613                         break;
2614                 }
2615
2616                 case NT_TRANSACT_QUERY_SECURITY_DESC:
2617                 {
2618                         START_PROFILE(NT_transact_query_security_desc);
2619                         call_nt_transact_query_security_desc(
2620                                 conn, req,
2621                                 &state->setup, state->setup_count,
2622                                 &state->param, state->total_param,
2623                                 &state->data, state->total_data,
2624                                 state->max_data_return);
2625                         END_PROFILE(NT_transact_query_security_desc);
2626                         break;
2627                 }
2628
2629 #ifdef HAVE_SYS_QUOTAS
2630                 case NT_TRANSACT_GET_USER_QUOTA:
2631                 {
2632                         START_PROFILE(NT_transact_get_user_quota);
2633                         call_nt_transact_get_user_quota(
2634                                 conn, req,
2635                                 &state->setup, state->setup_count,
2636                                 &state->param, state->total_param,
2637                                 &state->data, state->total_data,
2638                                 state->max_data_return);
2639                         END_PROFILE(NT_transact_get_user_quota);
2640                         break;
2641                 }
2642
2643                 case NT_TRANSACT_SET_USER_QUOTA:
2644                 {
2645                         START_PROFILE(NT_transact_set_user_quota);
2646                         call_nt_transact_set_user_quota(
2647                                 conn, req,
2648                                 &state->setup, state->setup_count,
2649                                 &state->param, state->total_param,
2650                                 &state->data, state->total_data,
2651                                 state->max_data_return);
2652                         END_PROFILE(NT_transact_set_user_quota);
2653                         break;
2654                 }
2655 #endif /* HAVE_SYS_QUOTAS */
2656
2657                 default:
2658                         /* Error in request */
2659                         DEBUG(0,("handle_nttrans: Unknown request %d in "
2660                                  "nttrans call\n", state->call));
2661                         reply_doserror(req, ERRSRV, ERRerror);
2662                         return;
2663         }
2664         return;
2665 }
2666
2667 /****************************************************************************
2668  Reply to a SMBNTtrans.
2669 ****************************************************************************/
2670
2671 void reply_nttrans(struct smb_request *req)
2672 {
2673         connection_struct *conn = req->conn;
2674         uint32_t pscnt;
2675         uint32_t psoff;
2676         uint32_t dscnt;
2677         uint32_t dsoff;
2678         uint16 function_code;
2679         NTSTATUS result;
2680         struct trans_state *state;
2681
2682         START_PROFILE(SMBnttrans);
2683
2684         if (req->wct < 19) {
2685                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2686                 END_PROFILE(SMBnttrans);
2687                 return;
2688         }
2689
2690         pscnt = IVAL(req->vwv+9, 1);
2691         psoff = IVAL(req->vwv+11, 1);
2692         dscnt = IVAL(req->vwv+13, 1);
2693         dsoff = IVAL(req->vwv+15, 1);
2694         function_code = SVAL(req->vwv+18, 0);
2695
2696         if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2697                 reply_doserror(req, ERRSRV, ERRaccess);
2698                 END_PROFILE(SMBnttrans);
2699                 return;
2700         }
2701
2702         result = allow_new_trans(conn->pending_trans, req->mid);
2703         if (!NT_STATUS_IS_OK(result)) {
2704                 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2705                 reply_nterror(req, result);
2706                 END_PROFILE(SMBnttrans);
2707                 return;
2708         }
2709
2710         if ((state = TALLOC_P(conn, struct trans_state)) == NULL) {
2711                 reply_doserror(req, ERRSRV, ERRaccess);
2712                 END_PROFILE(SMBnttrans);
2713                 return;
2714         }
2715
2716         state->cmd = SMBnttrans;
2717
2718         state->mid = req->mid;
2719         state->vuid = req->vuid;
2720         state->total_data = IVAL(req->vwv+3, 1);
2721         state->data = NULL;
2722         state->total_param = IVAL(req->vwv+1, 1);
2723         state->param = NULL;
2724         state->max_data_return = IVAL(req->vwv+7, 1);
2725         state->max_param_return = IVAL(req->vwv+5, 1);
2726
2727         /* setup count is in *words* */
2728         state->setup_count = 2*CVAL(req->vwv+17, 1);
2729         state->setup = NULL;
2730         state->call = function_code;
2731
2732         DEBUG(10, ("num_setup=%u, "
2733                    "param_total=%u, this_param=%u, max_param=%u, "
2734                    "data_total=%u, this_data=%u, max_data=%u, "
2735                    "param_offset=%u, data_offset=%u\n",
2736                    (unsigned)state->setup_count,
2737                    (unsigned)state->total_param, (unsigned)pscnt,
2738                    (unsigned)state->max_param_return,
2739                    (unsigned)state->total_data, (unsigned)dscnt,
2740                    (unsigned)state->max_data_return,
2741                    (unsigned)psoff, (unsigned)dsoff));
2742
2743         /*
2744          * All nttrans messages we handle have smb_wct == 19 +
2745          * state->setup_count.  Ensure this is so as a sanity check.
2746          */
2747
2748         if(req->wct != 19 + (state->setup_count/2)) {
2749                 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2750                          req->wct, 19 + (state->setup_count/2)));
2751                 goto bad_param;
2752         }
2753
2754         /* Don't allow more than 128mb for each value. */
2755         if ((state->total_data > (1024*1024*128)) ||
2756             (state->total_param > (1024*1024*128))) {
2757                 reply_doserror(req, ERRDOS, ERRnomem);
2758                 END_PROFILE(SMBnttrans);
2759                 return;
2760         }
2761
2762         if ((dscnt > state->total_data) || (pscnt > state->total_param))
2763                 goto bad_param;
2764
2765         if (state->total_data)  {
2766
2767                 if (trans_oob(state->total_data, 0, dscnt)
2768                     || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
2769                         goto bad_param;
2770                 }
2771
2772                 /* Can't use talloc here, the core routines do realloc on the
2773                  * params and data. */
2774                 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2775                         DEBUG(0,("reply_nttrans: data malloc fail for %u "
2776                                  "bytes !\n", (unsigned int)state->total_data));
2777                         TALLOC_FREE(state);
2778                         reply_doserror(req, ERRDOS, ERRnomem);
2779                         END_PROFILE(SMBnttrans);
2780                         return;
2781                 }
2782
2783                 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2784         }
2785
2786         if (state->total_param) {
2787
2788                 if (trans_oob(state->total_param, 0, pscnt)
2789                     || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
2790                         goto bad_param;
2791                 }
2792
2793                 /* Can't use talloc here, the core routines do realloc on the
2794                  * params and data. */
2795                 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2796                         DEBUG(0,("reply_nttrans: param malloc fail for %u "
2797                                  "bytes !\n", (unsigned int)state->total_param));
2798                         SAFE_FREE(state->data);
2799                         TALLOC_FREE(state);
2800                         reply_doserror(req, ERRDOS, ERRnomem);
2801                         END_PROFILE(SMBnttrans);
2802                         return;
2803                 }
2804
2805                 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2806         }
2807
2808         state->received_data  = dscnt;
2809         state->received_param = pscnt;
2810
2811         if(state->setup_count > 0) {
2812                 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2813                           state->setup_count));
2814
2815                 /*
2816                  * No overflow possible here, state->setup_count is an
2817                  * unsigned int, being filled by a single byte from
2818                  * CVAL(req->vwv+13, 0) above. The cast in the comparison
2819                  * below is not necessary, it's here to clarify things. The
2820                  * validity of req->vwv and req->wct has been checked in
2821                  * init_smb_request already.
2822                  */
2823                 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
2824                         goto bad_param;
2825                 }
2826
2827                 state->setup = (uint16 *)TALLOC(state, state->setup_count);
2828                 if (state->setup == NULL) {
2829                         DEBUG(0,("reply_nttrans : Out of memory\n"));
2830                         SAFE_FREE(state->data);
2831                         SAFE_FREE(state->param);
2832                         TALLOC_FREE(state);
2833                         reply_doserror(req, ERRDOS, ERRnomem);
2834                         END_PROFILE(SMBnttrans);
2835                         return;
2836                 }
2837
2838                 memcpy(state->setup, req->vwv+19, state->setup_count);
2839                 dump_data(10, (uint8 *)state->setup, state->setup_count);
2840         }
2841
2842         if ((state->received_data == state->total_data) &&
2843             (state->received_param == state->total_param)) {
2844                 handle_nttrans(conn, state, req);
2845                 SAFE_FREE(state->param);
2846                 SAFE_FREE(state->data);
2847                 TALLOC_FREE(state);
2848                 END_PROFILE(SMBnttrans);
2849                 return;
2850         }
2851
2852         DLIST_ADD(conn->pending_trans, state);
2853
2854         /* We need to send an interim response then receive the rest
2855            of the parameter/data bytes */
2856         reply_outbuf(req, 0, 0);
2857         show_msg((char *)req->outbuf);
2858         END_PROFILE(SMBnttrans);
2859         return;
2860
2861   bad_param:
2862
2863         DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2864         SAFE_FREE(state->data);
2865         SAFE_FREE(state->param);
2866         TALLOC_FREE(state);
2867         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2868         END_PROFILE(SMBnttrans);
2869         return;
2870 }
2871
2872 /****************************************************************************
2873  Reply to a SMBnttranss
2874  ****************************************************************************/
2875
2876 void reply_nttranss(struct smb_request *req)
2877 {
2878         connection_struct *conn = req->conn;
2879         uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
2880         struct trans_state *state;
2881
2882         START_PROFILE(SMBnttranss);
2883
2884         show_msg((char *)req->inbuf);
2885
2886         if (req->wct < 18) {
2887                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2888                 END_PROFILE(SMBnttranss);
2889                 return;
2890         }
2891
2892         for (state = conn->pending_trans; state != NULL;
2893              state = state->next) {
2894                 if (state->mid == req->mid) {
2895                         break;
2896                 }
2897         }
2898
2899         if ((state == NULL) || (state->cmd != SMBnttrans)) {
2900                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2901                 END_PROFILE(SMBnttranss);
2902                 return;
2903         }
2904
2905         /* Revise state->total_param and state->total_data in case they have
2906            changed downwards */
2907         if (IVAL(req->vwv+1, 1) < state->total_param) {
2908                 state->total_param = IVAL(req->vwv+1, 1);
2909         }
2910         if (IVAL(req->vwv+3, 1) < state->total_data) {
2911                 state->total_data = IVAL(req->vwv+3, 1);
2912         }
2913
2914         pcnt = IVAL(req->vwv+5, 1);
2915         poff = IVAL(req->vwv+7, 1);
2916         pdisp = IVAL(req->vwv+9, 1);
2917
2918         dcnt = IVAL(req->vwv+11, 1);
2919         doff = IVAL(req->vwv+13, 1);
2920         ddisp = IVAL(req->vwv+15, 1);
2921
2922         state->received_param += pcnt;
2923         state->received_data += dcnt;
2924
2925         if ((state->received_data > state->total_data) ||
2926             (state->received_param > state->total_param))
2927                 goto bad_param;
2928
2929         if (pcnt) {
2930                 if (trans_oob(state->total_param, pdisp, pcnt)
2931                     || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
2932                         goto bad_param;
2933                 }
2934                 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
2935         }
2936
2937         if (dcnt) {
2938                 if (trans_oob(state->total_data, ddisp, dcnt)
2939                     || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
2940                         goto bad_param;
2941                 }
2942                 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
2943         }
2944
2945         if ((state->received_param < state->total_param) ||
2946             (state->received_data < state->total_data)) {
2947                 END_PROFILE(SMBnttranss);
2948                 return;
2949         }
2950
2951         handle_nttrans(conn, state, req);
2952
2953         DLIST_REMOVE(conn->pending_trans, state);
2954         SAFE_FREE(state->data);
2955         SAFE_FREE(state->param);
2956         TALLOC_FREE(state);
2957         END_PROFILE(SMBnttranss);
2958         return;
2959
2960   bad_param:
2961
2962         DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
2963         DLIST_REMOVE(conn->pending_trans, state);
2964         SAFE_FREE(state->data);
2965         SAFE_FREE(state->param);
2966         TALLOC_FREE(state);
2967         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2968         END_PROFILE(SMBnttranss);
2969         return;
2970 }