s3-talloc Change TALLOC_ZERO_P() to talloc_zero()
[kai/samba.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 "system/filesys.h"
23 #include "smbd/smbd.h"
24 #include "smbd/globals.h"
25 #include "fake_file.h"
26 #include "../libcli/security/security.h"
27 #include "../librpc/gen_ndr/ndr_security.h"
28 #include "passdb/lookup_sid.h"
29 #include "auth.h"
30 #include "ntioctl.h"
31 #include "smbprofile.h"
32 #include "libsmb/libsmb.h"
33
34 extern const struct generic_mapping file_generic_mapping;
35
36 static char *nttrans_realloc(char **ptr, size_t size)
37 {
38         if (ptr==NULL) {
39                 smb_panic("nttrans_realloc() called with NULL ptr");
40         }
41
42         *ptr = (char *)SMB_REALLOC(*ptr, size);
43         if(*ptr == NULL) {
44                 return NULL;
45         }
46         memset(*ptr,'\0',size);
47         return *ptr;
48 }
49
50 /****************************************************************************
51  Send the required number of replies back.
52  We assume all fields other than the data fields are
53  set correctly for the type of call.
54  HACK ! Always assumes smb_setup field is zero.
55 ****************************************************************************/
56
57 static void send_nt_replies(connection_struct *conn,
58                             struct smb_request *req, NTSTATUS nt_error,
59                             char *params, int paramsize,
60                             char *pdata, int datasize)
61 {
62         int data_to_send = datasize;
63         int params_to_send = paramsize;
64         int useable_space;
65         char *pp = params;
66         char *pd = pdata;
67         int params_sent_thistime, data_sent_thistime, total_sent_thistime;
68         int alignment_offset = 1;
69         int data_alignment_offset = 0;
70         struct smbd_server_connection *sconn = req->sconn;
71         int max_send = sconn->smb1.sessions.max_send;
72
73         /*
74          * If there genuinely are no parameters or data to send just send
75          * the empty packet.
76          */
77
78         if(params_to_send == 0 && data_to_send == 0) {
79                 reply_outbuf(req, 18, 0);
80                 if (NT_STATUS_V(nt_error)) {
81                         error_packet_set((char *)req->outbuf,
82                                          0, 0, nt_error,
83                                          __LINE__,__FILE__);
84                 }
85                 show_msg((char *)req->outbuf);
86                 if (!srv_send_smb(sconn,
87                                 (char *)req->outbuf,
88                                 true, req->seqnum+1,
89                                 IS_CONN_ENCRYPTED(conn),
90                                 &req->pcd)) {
91                         exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
92                 }
93                 TALLOC_FREE(req->outbuf);
94                 return;
95         }
96
97         /*
98          * When sending params and data ensure that both are nicely aligned.
99          * Only do this alignment when there is also data to send - else
100          * can cause NT redirector problems.
101          */
102
103         if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
104                 data_alignment_offset = 4 - (params_to_send % 4);
105         }
106
107         /*
108          * Space is bufsize minus Netbios over TCP header minus SMB header.
109          * The alignment_offset is to align the param bytes on a four byte
110          * boundary (2 bytes for data len, one byte pad).
111          * NT needs this to work correctly.
112          */
113
114         useable_space = max_send - (smb_size
115                                     + 2 * 18 /* wct */
116                                     + alignment_offset
117                                     + data_alignment_offset);
118
119         if (useable_space < 0) {
120                 char *msg = talloc_asprintf(
121                         talloc_tos(),
122                         "send_nt_replies failed sanity useable_space = %d!!!",
123                         useable_space);
124                 DEBUG(0, ("%s\n", msg));
125                 exit_server_cleanly(msg);
126         }
127
128         while (params_to_send || data_to_send) {
129
130                 /*
131                  * Calculate whether we will totally or partially fill this packet.
132                  */
133
134                 total_sent_thistime = params_to_send + data_to_send;
135
136                 /*
137                  * We can never send more than useable_space.
138                  */
139
140                 total_sent_thistime = MIN(total_sent_thistime, useable_space);
141
142                 reply_outbuf(req, 18,
143                              total_sent_thistime + alignment_offset
144                              + data_alignment_offset);
145
146                 /*
147                  * We might have had SMBnttranss in req->inbuf, fix that.
148                  */
149                 SCVAL(req->outbuf, smb_com, SMBnttrans);
150
151                 /*
152                  * Set total params and data to be sent.
153                  */
154
155                 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
156                 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
157
158                 /*
159                  * Calculate how many parameters and data we can fit into
160                  * this packet. Parameters get precedence.
161                  */
162
163                 params_sent_thistime = MIN(params_to_send,useable_space);
164                 data_sent_thistime = useable_space - params_sent_thistime;
165                 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
166
167                 SIVAL(req->outbuf, smb_ntr_ParameterCount,
168                       params_sent_thistime);
169
170                 if(params_sent_thistime == 0) {
171                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
172                         SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
173                 } else {
174                         /*
175                          * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
176                          * parameter bytes, however the first 4 bytes of outbuf are
177                          * the Netbios over TCP header. Thus use smb_base() to subtract
178                          * them from the calculation.
179                          */
180
181                         SIVAL(req->outbuf,smb_ntr_ParameterOffset,
182                               ((smb_buf(req->outbuf)+alignment_offset)
183                                - smb_base(req->outbuf)));
184                         /*
185                          * Absolute displacement of param bytes sent in this packet.
186                          */
187
188                         SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
189                               pp - params);
190                 }
191
192                 /*
193                  * Deal with the data portion.
194                  */
195
196                 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
197
198                 if(data_sent_thistime == 0) {
199                         SIVAL(req->outbuf,smb_ntr_DataOffset,0);
200                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
201                 } else {
202                         /*
203                          * The offset of the data bytes is the offset of the
204                          * parameter bytes plus the number of parameters being sent this time.
205                          */
206
207                         SIVAL(req->outbuf, smb_ntr_DataOffset,
208                               ((smb_buf(req->outbuf)+alignment_offset) -
209                                smb_base(req->outbuf))
210                               + params_sent_thistime + data_alignment_offset);
211                         SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
212                 }
213
214                 /*
215                  * Copy the param bytes into the packet.
216                  */
217
218                 if(params_sent_thistime) {
219                         if (alignment_offset != 0) {
220                                 memset(smb_buf(req->outbuf), 0,
221                                        alignment_offset);
222                         }
223                         memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
224                                params_sent_thistime);
225                 }
226
227                 /*
228                  * Copy in the data bytes
229                  */
230
231                 if(data_sent_thistime) {
232                         if (data_alignment_offset != 0) {
233                                 memset((smb_buf(req->outbuf)+alignment_offset+
234                                         params_sent_thistime), 0,
235                                        data_alignment_offset);
236                         }
237                         memcpy(smb_buf(req->outbuf)+alignment_offset
238                                +params_sent_thistime+data_alignment_offset,
239                                pd,data_sent_thistime);
240                 }
241
242                 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
243                         params_sent_thistime, data_sent_thistime, useable_space));
244                 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
245                         params_to_send, data_to_send, paramsize, datasize));
246
247                 if (NT_STATUS_V(nt_error)) {
248                         error_packet_set((char *)req->outbuf,
249                                          0, 0, nt_error,
250                                          __LINE__,__FILE__);
251                 }
252
253                 /* Send the packet */
254                 show_msg((char *)req->outbuf);
255                 if (!srv_send_smb(sconn,
256                                 (char *)req->outbuf,
257                                 true, req->seqnum+1,
258                                 IS_CONN_ENCRYPTED(conn),
259                                 &req->pcd)) {
260                         exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
261                 }
262
263                 TALLOC_FREE(req->outbuf);
264
265                 pp += params_sent_thistime;
266                 pd += data_sent_thistime;
267
268                 params_to_send -= params_sent_thistime;
269                 data_to_send -= data_sent_thistime;
270
271                 /*
272                  * Sanity check
273                  */
274
275                 if(params_to_send < 0 || data_to_send < 0) {
276                         DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
277                                 params_to_send, data_to_send));
278                         exit_server_cleanly("send_nt_replies: internal error");
279                 }
280         }
281 }
282
283 /****************************************************************************
284  Reply to an NT create and X call on a pipe
285 ****************************************************************************/
286
287 static void nt_open_pipe(char *fname, connection_struct *conn,
288                          struct smb_request *req, int *ppnum)
289 {
290         files_struct *fsp;
291         NTSTATUS status;
292
293         DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
294
295         /* Strip \\ off the name. */
296         fname++;
297
298         status = open_np_file(req, fname, &fsp);
299         if (!NT_STATUS_IS_OK(status)) {
300                 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
301                         reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
302                                         ERRDOS, ERRbadpipe);
303                         return;
304                 }
305                 reply_nterror(req, status);
306                 return;
307         }
308
309         *ppnum = fsp->fnum;
310         return;
311 }
312
313 /****************************************************************************
314  Reply to an NT create and X call for pipes.
315 ****************************************************************************/
316
317 static void do_ntcreate_pipe_open(connection_struct *conn,
318                                   struct smb_request *req)
319 {
320         char *fname = NULL;
321         int pnum = -1;
322         char *p = NULL;
323         uint32 flags = IVAL(req->vwv+3, 1);
324         TALLOC_CTX *ctx = talloc_tos();
325
326         srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
327
328         if (!fname) {
329                 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
330                                 ERRDOS, ERRbadpipe);
331                 return;
332         }
333         nt_open_pipe(fname, conn, req, &pnum);
334
335         if (req->outbuf) {
336                 /* error reply */
337                 return;
338         }
339
340         /*
341          * Deal with pipe return.
342          */
343
344         if (flags & EXTENDED_RESPONSE_REQUIRED) {
345                 /* This is very strange. We
346                  * return 50 words, but only set
347                  * the wcnt to 42 ? It's definately
348                  * what happens on the wire....
349                  */
350                 reply_outbuf(req, 50, 0);
351                 SCVAL(req->outbuf,smb_wct,42);
352         } else {
353                 reply_outbuf(req, 34, 0);
354         }
355
356         p = (char *)req->outbuf + smb_vwv2;
357         p++;
358         SSVAL(p,0,pnum);
359         p += 2;
360         SIVAL(p,0,FILE_WAS_OPENED);
361         p += 4;
362         p += 32;
363         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
364         p += 20;
365         /* File type. */
366         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
367         /* Device state. */
368         SSVAL(p,2, 0x5FF); /* ? */
369         p += 4;
370
371         if (flags & EXTENDED_RESPONSE_REQUIRED) {
372                 p += 25;
373                 SIVAL(p,0,FILE_GENERIC_ALL);
374                 /*
375                  * For pipes W2K3 seems to return
376                  * 0x12019B next.
377                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
378                  */
379                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
380         }
381
382         DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
383
384         chain_reply(req);
385 }
386
387 struct case_semantics_state {
388         connection_struct *conn;
389         bool case_sensitive;
390         bool case_preserve;
391         bool short_case_preserve;
392 };
393
394 /****************************************************************************
395  Restore case semantics.
396 ****************************************************************************/
397
398 static int restore_case_semantics(struct case_semantics_state *state)
399 {
400         state->conn->case_sensitive = state->case_sensitive;
401         state->conn->case_preserve = state->case_preserve;
402         state->conn->short_case_preserve = state->short_case_preserve;
403         return 0;
404 }
405
406 /****************************************************************************
407  Save case semantics.
408 ****************************************************************************/
409
410 static struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx,
411                                                 connection_struct *conn)
412 {
413         struct case_semantics_state *result;
414
415         if (!(result = talloc(mem_ctx, struct case_semantics_state))) {
416                 return NULL;
417         }
418
419         result->conn = conn;
420         result->case_sensitive = conn->case_sensitive;
421         result->case_preserve = conn->case_preserve;
422         result->short_case_preserve = conn->short_case_preserve;
423
424         /* Set to POSIX. */
425         conn->case_sensitive = True;
426         conn->case_preserve = True;
427         conn->short_case_preserve = True;
428
429         talloc_set_destructor(result, restore_case_semantics);
430
431         return result;
432 }
433
434 /****************************************************************************
435  Reply to an NT create and X call.
436 ****************************************************************************/
437
438 void reply_ntcreate_and_X(struct smb_request *req)
439 {
440         connection_struct *conn = req->conn;
441         struct smb_filename *smb_fname = NULL;
442         char *fname = NULL;
443         uint32 flags;
444         uint32 access_mask;
445         uint32 file_attributes;
446         uint32 share_access;
447         uint32 create_disposition;
448         uint32 create_options;
449         uint16 root_dir_fid;
450         uint64_t allocation_size;
451         /* Breakout the oplock request bits so we can set the
452            reply bits separately. */
453         uint32 fattr=0;
454         SMB_OFF_T file_len = 0;
455         int info = 0;
456         files_struct *fsp = NULL;
457         char *p = NULL;
458         struct timespec create_timespec;
459         struct timespec c_timespec;
460         struct timespec a_timespec;
461         struct timespec m_timespec;
462         struct timespec write_time_ts;
463         NTSTATUS status;
464         int oplock_request;
465         uint8_t oplock_granted = NO_OPLOCK_RETURN;
466         struct case_semantics_state *case_state = NULL;
467         TALLOC_CTX *ctx = talloc_tos();
468
469         START_PROFILE(SMBntcreateX);
470
471         if (req->wct < 24) {
472                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
473                 goto out;
474         }
475
476         flags = IVAL(req->vwv+3, 1);
477         access_mask = IVAL(req->vwv+7, 1);
478         file_attributes = IVAL(req->vwv+13, 1);
479         share_access = IVAL(req->vwv+15, 1);
480         create_disposition = IVAL(req->vwv+17, 1);
481         create_options = IVAL(req->vwv+19, 1);
482         root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
483
484         allocation_size = BVAL(req->vwv+9, 1);
485
486         srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
487                             STR_TERMINATE, &status);
488
489         if (!NT_STATUS_IS_OK(status)) {
490                 reply_nterror(req, status);
491                 goto out;
492         }
493
494         DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
495                   "file_attributes = 0x%x, share_access = 0x%x, "
496                   "create_disposition = 0x%x create_options = 0x%x "
497                   "root_dir_fid = 0x%x, fname = %s\n",
498                         (unsigned int)flags,
499                         (unsigned int)access_mask,
500                         (unsigned int)file_attributes,
501                         (unsigned int)share_access,
502                         (unsigned int)create_disposition,
503                         (unsigned int)create_options,
504                         (unsigned int)root_dir_fid,
505                         fname));
506
507         /*
508          * we need to remove ignored bits when they come directly from the client
509          * because we reuse some of them for internal stuff
510          */
511         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
512
513         /*
514          * If it's an IPC, use the pipe handler.
515          */
516
517         if (IS_IPC(conn)) {
518                 if (lp_nt_pipe_support()) {
519                         do_ntcreate_pipe_open(conn, req);
520                         goto out;
521                 }
522                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
523                 goto out;
524         }
525
526         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
527         if (oplock_request) {
528                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
529                         ? BATCH_OPLOCK : 0;
530         }
531
532         if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
533                 case_state = set_posix_case_semantics(ctx, conn);
534                 if (!case_state) {
535                         reply_nterror(req, NT_STATUS_NO_MEMORY);
536                         goto out;
537                 }
538         }
539
540         status = filename_convert(ctx,
541                                 conn,
542                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
543                                 fname,
544                                 0,
545                                 NULL,
546                                 &smb_fname);
547
548         TALLOC_FREE(case_state);
549
550         if (!NT_STATUS_IS_OK(status)) {
551                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
552                         reply_botherror(req,
553                                 NT_STATUS_PATH_NOT_COVERED,
554                                 ERRSRV, ERRbadpath);
555                         goto out;
556                 }
557                 reply_nterror(req, status);
558                 goto out;
559         }
560
561         /*
562          * Bug #6898 - clients using Windows opens should
563          * never be able to set this attribute into the
564          * VFS.
565          */
566         file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
567
568         status = SMB_VFS_CREATE_FILE(
569                 conn,                                   /* conn */
570                 req,                                    /* req */
571                 root_dir_fid,                           /* root_dir_fid */
572                 smb_fname,                              /* fname */
573                 access_mask,                            /* access_mask */
574                 share_access,                           /* share_access */
575                 create_disposition,                     /* create_disposition*/
576                 create_options,                         /* create_options */
577                 file_attributes,                        /* file_attributes */
578                 oplock_request,                         /* oplock_request */
579                 allocation_size,                        /* allocation_size */
580                 0,                                      /* private_flags */
581                 NULL,                                   /* sd */
582                 NULL,                                   /* ea_list */
583                 &fsp,                                   /* result */
584                 &info);                                 /* pinfo */
585
586         if (!NT_STATUS_IS_OK(status)) {
587                 if (open_was_deferred(req->mid)) {
588                         /* We have re-scheduled this call, no error. */
589                         goto out;
590                 }
591                 reply_openerror(req, status);
592                 goto out;
593         }
594
595         /* Ensure we're pointing at the correct stat struct. */
596         TALLOC_FREE(smb_fname);
597         smb_fname = fsp->fsp_name;
598
599         /*
600          * If the caller set the extended oplock request bit
601          * and we granted one (by whatever means) - set the
602          * correct bit for extended oplock reply.
603          */
604
605         if (oplock_request &&
606             (lp_fake_oplocks(SNUM(conn))
607              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
608
609                 /*
610                  * Exclusive oplock granted
611                  */
612
613                 if (flags & REQUEST_BATCH_OPLOCK) {
614                         oplock_granted = BATCH_OPLOCK_RETURN;
615                 } else {
616                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
617                 }
618         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
619                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
620         } else {
621                 oplock_granted = NO_OPLOCK_RETURN;
622         }
623
624         file_len = smb_fname->st.st_ex_size;
625
626         if (flags & EXTENDED_RESPONSE_REQUIRED) {
627                 /* This is very strange. We
628                  * return 50 words, but only set
629                  * the wcnt to 42 ? It's definately
630                  * what happens on the wire....
631                  */
632                 reply_outbuf(req, 50, 0);
633                 SCVAL(req->outbuf,smb_wct,42);
634         } else {
635                 reply_outbuf(req, 34, 0);
636         }
637
638         p = (char *)req->outbuf + smb_vwv2;
639
640         SCVAL(p, 0, oplock_granted);
641
642         p++;
643         SSVAL(p,0,fsp->fnum);
644         p += 2;
645         if ((create_disposition == FILE_SUPERSEDE)
646             && (info == FILE_WAS_OVERWRITTEN)) {
647                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
648         } else {
649                 SIVAL(p,0,info);
650         }
651         p += 4;
652
653         fattr = dos_mode(conn, smb_fname);
654         if (fattr == 0) {
655                 fattr = FILE_ATTRIBUTE_NORMAL;
656         }
657
658         /* Deal with other possible opens having a modified
659            write time. JRA. */
660         ZERO_STRUCT(write_time_ts);
661         get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
662         if (!null_timespec(write_time_ts)) {
663                 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
664         }
665
666         /* Create time. */
667         create_timespec = get_create_timespec(conn, fsp, smb_fname);
668         a_timespec = smb_fname->st.st_ex_atime;
669         m_timespec = smb_fname->st.st_ex_mtime;
670         c_timespec = get_change_timespec(conn, fsp, smb_fname);
671
672         if (lp_dos_filetime_resolution(SNUM(conn))) {
673                 dos_filetime_timespec(&create_timespec);
674                 dos_filetime_timespec(&a_timespec);
675                 dos_filetime_timespec(&m_timespec);
676                 dos_filetime_timespec(&c_timespec);
677         }
678
679         put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
680         p += 8;
681         put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
682         p += 8;
683         put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
684         p += 8;
685         put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
686         p += 8;
687         SIVAL(p,0,fattr); /* File Attributes. */
688         p += 4;
689         SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
690         p += 8;
691         SOFF_T(p,0,file_len);
692         p += 8;
693         if (flags & EXTENDED_RESPONSE_REQUIRED) {
694                 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
695                 size_t num_names = 0;
696                 unsigned int num_streams;
697                 struct stream_struct *streams = NULL;
698
699                 /* Do we have any EA's ? */
700                 status = get_ea_names_from_file(ctx, conn, fsp,
701                                 smb_fname->base_name, NULL, &num_names);
702                 if (NT_STATUS_IS_OK(status) && num_names) {
703                         file_status &= ~NO_EAS;
704                 }
705                 status = SMB_VFS_STREAMINFO(conn, NULL, smb_fname->base_name, ctx,
706                         &num_streams, &streams);
707                 /* There is always one stream, ::$DATA. */
708                 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
709                         file_status &= ~NO_SUBSTREAMS;
710                 }
711                 TALLOC_FREE(streams);
712                 SSVAL(p,2,file_status);
713         }
714         p += 4;
715         SCVAL(p,0,fsp->is_directory ? 1 : 0);
716
717         if (flags & EXTENDED_RESPONSE_REQUIRED) {
718                 uint32 perms = 0;
719                 p += 25;
720                 if (fsp->is_directory ||
721                     can_write_to_file(conn, smb_fname)) {
722                         perms = FILE_GENERIC_ALL;
723                 } else {
724                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
725                 }
726                 SIVAL(p,0,perms);
727         }
728
729         DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
730                 fsp->fnum, smb_fname_str_dbg(smb_fname)));
731
732         chain_reply(req);
733  out:
734         END_PROFILE(SMBntcreateX);
735         return;
736 }
737
738 /****************************************************************************
739  Reply to a NT_TRANSACT_CREATE call to open a pipe.
740 ****************************************************************************/
741
742 static void do_nt_transact_create_pipe(connection_struct *conn,
743                                        struct smb_request *req,
744                                        uint16 **ppsetup, uint32 setup_count,
745                                        char **ppparams, uint32 parameter_count,
746                                        char **ppdata, uint32 data_count)
747 {
748         char *fname = NULL;
749         char *params = *ppparams;
750         int pnum = -1;
751         char *p = NULL;
752         NTSTATUS status;
753         size_t param_len;
754         uint32 flags;
755         TALLOC_CTX *ctx = talloc_tos();
756
757         /*
758          * Ensure minimum number of parameters sent.
759          */
760
761         if(parameter_count < 54) {
762                 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
763                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
764                 return;
765         }
766
767         flags = IVAL(params,0);
768
769         srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
770                         parameter_count-53, STR_TERMINATE,
771                         &status);
772         if (!NT_STATUS_IS_OK(status)) {
773                 reply_nterror(req, status);
774                 return;
775         }
776
777         nt_open_pipe(fname, conn, req, &pnum);
778
779         if (req->outbuf) {
780                 /* Error return */
781                 return;
782         }
783
784         /* Realloc the size of parameters and data we will return */
785         if (flags & EXTENDED_RESPONSE_REQUIRED) {
786                 /* Extended response is 32 more byyes. */
787                 param_len = 101;
788         } else {
789                 param_len = 69;
790         }
791         params = nttrans_realloc(ppparams, param_len);
792         if(params == NULL) {
793                 reply_nterror(req, NT_STATUS_NO_MEMORY);
794                 return;
795         }
796
797         p = params;
798         SCVAL(p,0,NO_OPLOCK_RETURN);
799
800         p += 2;
801         SSVAL(p,0,pnum);
802         p += 2;
803         SIVAL(p,0,FILE_WAS_OPENED);
804         p += 8;
805
806         p += 32;
807         SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
808         p += 20;
809         /* File type. */
810         SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
811         /* Device state. */
812         SSVAL(p,2, 0x5FF); /* ? */
813         p += 4;
814
815         if (flags & EXTENDED_RESPONSE_REQUIRED) {
816                 p += 25;
817                 SIVAL(p,0,FILE_GENERIC_ALL);
818                 /*
819                  * For pipes W2K3 seems to return
820                  * 0x12019B next.
821                  * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
822                  */
823                 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
824         }
825
826         DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
827
828         /* Send the required number of replies */
829         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
830
831         return;
832 }
833
834 /****************************************************************************
835  Internal fn to set security descriptors.
836 ****************************************************************************/
837
838 NTSTATUS set_sd(files_struct *fsp, uint8_t *data, uint32_t sd_len,
839                        uint32_t security_info_sent)
840 {
841         struct security_descriptor *psd = NULL;
842         NTSTATUS status;
843
844         if (sd_len == 0) {
845                 return NT_STATUS_INVALID_PARAMETER;
846         }
847
848         if (!CAN_WRITE(fsp->conn)) {
849                 return NT_STATUS_ACCESS_DENIED;
850         }
851
852         if (!lp_nt_acl_support(SNUM(fsp->conn))) {
853                 return NT_STATUS_OK;
854         }
855
856         status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
857
858         if (!NT_STATUS_IS_OK(status)) {
859                 return status;
860         }
861
862         if (psd->owner_sid == NULL) {
863                 security_info_sent &= ~SECINFO_OWNER;
864         }
865         if (psd->group_sid == NULL) {
866                 security_info_sent &= ~SECINFO_GROUP;
867         }
868
869         /* Ensure we have at least one thing set. */
870         if ((security_info_sent & (SECINFO_OWNER|SECINFO_GROUP|SECINFO_DACL|SECINFO_SACL)) == 0) {
871                 return NT_STATUS_INVALID_PARAMETER;
872         }
873
874         /* Ensure we have the rights to do this. */
875         if (security_info_sent & SECINFO_OWNER) {
876                 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
877                         return NT_STATUS_ACCESS_DENIED;
878                 }
879         }
880
881         if (security_info_sent & SECINFO_GROUP) {
882                 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
883                         return NT_STATUS_ACCESS_DENIED;
884                 }
885         }
886
887         if (security_info_sent & SECINFO_DACL) {
888                 if (!(fsp->access_mask & SEC_STD_WRITE_DAC)) {
889                         return NT_STATUS_ACCESS_DENIED;
890                 }
891                 /* Convert all the generic bits. */
892                 if (psd->dacl) {
893                         security_acl_map_generic(psd->dacl, &file_generic_mapping);
894                 }
895         }
896
897         if (security_info_sent & SECINFO_SACL) {
898                 if (!(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
899                         return NT_STATUS_ACCESS_DENIED;
900                 }
901                 /* Convert all the generic bits. */
902                 if (psd->sacl) {
903                         security_acl_map_generic(psd->sacl, &file_generic_mapping);
904                 }
905         }
906
907         if (DEBUGLEVEL >= 10) {
908                 DEBUG(10,("set_sd for file %s\n", fsp_str_dbg(fsp)));
909                 NDR_PRINT_DEBUG(security_descriptor, psd);
910         }
911
912         status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
913
914         TALLOC_FREE(psd);
915
916         return status;
917 }
918
919 /****************************************************************************
920  Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
921 ****************************************************************************/
922
923 struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
924 {
925         struct ea_list *ea_list_head = NULL;
926         size_t offset = 0;
927
928         if (data_size < 4) {
929                 return NULL;
930         }
931
932         while (offset + 4 <= data_size) {
933                 size_t next_offset = IVAL(pdata,offset);
934                 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
935
936                 if (!eal) {
937                         return NULL;
938                 }
939
940                 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
941                 if (next_offset == 0) {
942                         break;
943                 }
944                 offset += next_offset;
945         }
946
947         return ea_list_head;
948 }
949
950 /****************************************************************************
951  Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
952 ****************************************************************************/
953
954 static void call_nt_transact_create(connection_struct *conn,
955                                     struct smb_request *req,
956                                     uint16 **ppsetup, uint32 setup_count,
957                                     char **ppparams, uint32 parameter_count,
958                                     char **ppdata, uint32 data_count,
959                                     uint32 max_data_count)
960 {
961         struct smb_filename *smb_fname = NULL;
962         char *fname = NULL;
963         char *params = *ppparams;
964         char *data = *ppdata;
965         /* Breakout the oplock request bits so we can set the reply bits separately. */
966         uint32 fattr=0;
967         SMB_OFF_T file_len = 0;
968         int info = 0;
969         files_struct *fsp = NULL;
970         char *p = NULL;
971         uint32 flags;
972         uint32 access_mask;
973         uint32 file_attributes;
974         uint32 share_access;
975         uint32 create_disposition;
976         uint32 create_options;
977         uint32 sd_len;
978         struct security_descriptor *sd = NULL;
979         uint32 ea_len;
980         uint16 root_dir_fid;
981         struct timespec create_timespec;
982         struct timespec c_timespec;
983         struct timespec a_timespec;
984         struct timespec m_timespec;
985         struct timespec write_time_ts;
986         struct ea_list *ea_list = NULL;
987         NTSTATUS status;
988         size_t param_len;
989         uint64_t allocation_size;
990         int oplock_request;
991         uint8_t oplock_granted;
992         struct case_semantics_state *case_state = NULL;
993         TALLOC_CTX *ctx = talloc_tos();
994
995         DEBUG(5,("call_nt_transact_create\n"));
996
997         /*
998          * If it's an IPC, use the pipe handler.
999          */
1000
1001         if (IS_IPC(conn)) {
1002                 if (lp_nt_pipe_support()) {
1003                         do_nt_transact_create_pipe(
1004                                 conn, req,
1005                                 ppsetup, setup_count,
1006                                 ppparams, parameter_count,
1007                                 ppdata, data_count);
1008                         goto out;
1009                 }
1010                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1011                 goto out;
1012         }
1013
1014         /*
1015          * Ensure minimum number of parameters sent.
1016          */
1017
1018         if(parameter_count < 54) {
1019                 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1020                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1021                 goto out;
1022         }
1023
1024         flags = IVAL(params,0);
1025         access_mask = IVAL(params,8);
1026         file_attributes = IVAL(params,20);
1027         share_access = IVAL(params,24);
1028         create_disposition = IVAL(params,28);
1029         create_options = IVAL(params,32);
1030         sd_len = IVAL(params,36);
1031         ea_len = IVAL(params,40);
1032         root_dir_fid = (uint16)IVAL(params,4);
1033         allocation_size = BVAL(params,12);
1034
1035         /*
1036          * we need to remove ignored bits when they come directly from the client
1037          * because we reuse some of them for internal stuff
1038          */
1039         create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
1040
1041         /* Ensure the data_len is correct for the sd and ea values given. */
1042         if ((ea_len + sd_len > data_count)
1043             || (ea_len > data_count) || (sd_len > data_count)
1044             || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
1045                 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
1046                            "%u, data_count = %u\n", (unsigned int)ea_len,
1047                            (unsigned int)sd_len, (unsigned int)data_count));
1048                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1049                 goto out;
1050         }
1051
1052         if (sd_len) {
1053                 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
1054                            sd_len));
1055
1056                 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
1057                                              &sd);
1058                 if (!NT_STATUS_IS_OK(status)) {
1059                         DEBUG(10, ("call_nt_transact_create: "
1060                                    "unmarshall_sec_desc failed: %s\n",
1061                                    nt_errstr(status)));
1062                         reply_nterror(req, status);
1063                         goto out;
1064                 }
1065         }
1066
1067         if (ea_len) {
1068                 if (!lp_ea_support(SNUM(conn))) {
1069                         DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
1070                                    "EA's not supported.\n",
1071                                    (unsigned int)ea_len));
1072                         reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
1073                         goto out;
1074                 }
1075
1076                 if (ea_len < 10) {
1077                         DEBUG(10,("call_nt_transact_create - ea_len = %u - "
1078                                   "too small (should be more than 10)\n",
1079                                   (unsigned int)ea_len ));
1080                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1081                         goto out;
1082                 }
1083
1084                 /* We have already checked that ea_len <= data_count here. */
1085                 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
1086                                                ea_len);
1087                 if (ea_list == NULL) {
1088                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1089                         goto out;
1090                 }
1091         }
1092
1093         srvstr_get_path(ctx, params, req->flags2, &fname,
1094                         params+53, parameter_count-53,
1095                         STR_TERMINATE, &status);
1096         if (!NT_STATUS_IS_OK(status)) {
1097                 reply_nterror(req, status);
1098                 goto out;
1099         }
1100
1101         if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
1102                 case_state = set_posix_case_semantics(ctx, conn);
1103                 if (!case_state) {
1104                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1105                         goto out;
1106                 }
1107         }
1108
1109         status = filename_convert(ctx,
1110                                 conn,
1111                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
1112                                 fname,
1113                                 0,
1114                                 NULL,
1115                                 &smb_fname);
1116
1117         TALLOC_FREE(case_state);
1118
1119         if (!NT_STATUS_IS_OK(status)) {
1120                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1121                         reply_botherror(req,
1122                                 NT_STATUS_PATH_NOT_COVERED,
1123                                 ERRSRV, ERRbadpath);
1124                         goto out;
1125                 }
1126                 reply_nterror(req, status);
1127                 goto out;
1128         }
1129
1130         oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1131         if (oplock_request) {
1132                 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1133                         ? BATCH_OPLOCK : 0;
1134         }
1135
1136         /*
1137          * Bug #6898 - clients using Windows opens should
1138          * never be able to set this attribute into the
1139          * VFS.
1140          */
1141         file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
1142
1143         status = SMB_VFS_CREATE_FILE(
1144                 conn,                                   /* conn */
1145                 req,                                    /* req */
1146                 root_dir_fid,                           /* root_dir_fid */
1147                 smb_fname,                              /* fname */
1148                 access_mask,                            /* access_mask */
1149                 share_access,                           /* share_access */
1150                 create_disposition,                     /* create_disposition*/
1151                 create_options,                         /* create_options */
1152                 file_attributes,                        /* file_attributes */
1153                 oplock_request,                         /* oplock_request */
1154                 allocation_size,                        /* allocation_size */
1155                 0,                                      /* private_flags */
1156                 sd,                                     /* sd */
1157                 ea_list,                                /* ea_list */
1158                 &fsp,                                   /* result */
1159                 &info);                                 /* pinfo */
1160
1161         if(!NT_STATUS_IS_OK(status)) {
1162                 if (open_was_deferred(req->mid)) {
1163                         /* We have re-scheduled this call, no error. */
1164                         return;
1165                 }
1166                 reply_openerror(req, status);
1167                 goto out;
1168         }
1169
1170         /* Ensure we're pointing at the correct stat struct. */
1171         TALLOC_FREE(smb_fname);
1172         smb_fname = fsp->fsp_name;
1173
1174         /*
1175          * If the caller set the extended oplock request bit
1176          * and we granted one (by whatever means) - set the
1177          * correct bit for extended oplock reply.
1178          */
1179
1180         if (oplock_request &&
1181             (lp_fake_oplocks(SNUM(conn))
1182              || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1183
1184                 /*
1185                  * Exclusive oplock granted
1186                  */
1187
1188                 if (flags & REQUEST_BATCH_OPLOCK) {
1189                         oplock_granted = BATCH_OPLOCK_RETURN;
1190                 } else {
1191                         oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1192                 }
1193         } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1194                 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1195         } else {
1196                 oplock_granted = NO_OPLOCK_RETURN;
1197         }
1198
1199         file_len = smb_fname->st.st_ex_size;
1200
1201         /* Realloc the size of parameters and data we will return */
1202         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1203                 /* Extended response is 32 more byyes. */
1204                 param_len = 101;
1205         } else {
1206                 param_len = 69;
1207         }
1208         params = nttrans_realloc(ppparams, param_len);
1209         if(params == NULL) {
1210                 reply_nterror(req, NT_STATUS_NO_MEMORY);
1211                 goto out;
1212         }
1213
1214         p = params;
1215         SCVAL(p, 0, oplock_granted);
1216
1217         p += 2;
1218         SSVAL(p,0,fsp->fnum);
1219         p += 2;
1220         if ((create_disposition == FILE_SUPERSEDE)
1221             && (info == FILE_WAS_OVERWRITTEN)) {
1222                 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1223         } else {
1224                 SIVAL(p,0,info);
1225         }
1226         p += 8;
1227
1228         fattr = dos_mode(conn, smb_fname);
1229         if (fattr == 0) {
1230                 fattr = FILE_ATTRIBUTE_NORMAL;
1231         }
1232
1233         /* Deal with other possible opens having a modified
1234            write time. JRA. */
1235         ZERO_STRUCT(write_time_ts);
1236         get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
1237         if (!null_timespec(write_time_ts)) {
1238                 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
1239         }
1240
1241         /* Create time. */
1242         create_timespec = get_create_timespec(conn, fsp, smb_fname);
1243         a_timespec = smb_fname->st.st_ex_atime;
1244         m_timespec = smb_fname->st.st_ex_mtime;
1245         c_timespec = get_change_timespec(conn, fsp, smb_fname);
1246
1247         if (lp_dos_filetime_resolution(SNUM(conn))) {
1248                 dos_filetime_timespec(&create_timespec);
1249                 dos_filetime_timespec(&a_timespec);
1250                 dos_filetime_timespec(&m_timespec);
1251                 dos_filetime_timespec(&c_timespec);
1252         }
1253
1254         put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
1255         p += 8;
1256         put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
1257         p += 8;
1258         put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
1259         p += 8;
1260         put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
1261         p += 8;
1262         SIVAL(p,0,fattr); /* File Attributes. */
1263         p += 4;
1264         SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1265         p += 8;
1266         SOFF_T(p,0,file_len);
1267         p += 8;
1268         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1269                 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
1270                 size_t num_names = 0;
1271                 unsigned int num_streams;
1272                 struct stream_struct *streams = NULL;
1273
1274                 /* Do we have any EA's ? */
1275                 status = get_ea_names_from_file(ctx, conn, fsp,
1276                                 smb_fname->base_name, NULL, &num_names);
1277                 if (NT_STATUS_IS_OK(status) && num_names) {
1278                         file_status &= ~NO_EAS;
1279                 }
1280                 status = SMB_VFS_STREAMINFO(conn, NULL, smb_fname->base_name, ctx,
1281                         &num_streams, &streams);
1282                 /* There is always one stream, ::$DATA. */
1283                 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
1284                         file_status &= ~NO_SUBSTREAMS;
1285                 }
1286                 TALLOC_FREE(streams);
1287                 SSVAL(p,2,file_status);
1288         }
1289         p += 4;
1290         SCVAL(p,0,fsp->is_directory ? 1 : 0);
1291
1292         if (flags & EXTENDED_RESPONSE_REQUIRED) {
1293                 uint32 perms = 0;
1294                 p += 25;
1295                 if (fsp->is_directory ||
1296                     can_write_to_file(conn, smb_fname)) {
1297                         perms = FILE_GENERIC_ALL;
1298                 } else {
1299                         perms = FILE_GENERIC_READ|FILE_EXECUTE;
1300                 }
1301                 SIVAL(p,0,perms);
1302         }
1303
1304         DEBUG(5,("call_nt_transact_create: open name = %s\n",
1305                  smb_fname_str_dbg(smb_fname)));
1306
1307         /* Send the required number of replies */
1308         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1309  out:
1310         return;
1311 }
1312
1313 /****************************************************************************
1314  Reply to a NT CANCEL request.
1315  conn POINTER CAN BE NULL HERE !
1316 ****************************************************************************/
1317
1318 void reply_ntcancel(struct smb_request *req)
1319 {
1320         /*
1321          * Go through and cancel any pending change notifies.
1322          */
1323
1324         START_PROFILE(SMBntcancel);
1325         srv_cancel_sign_response(req->sconn);
1326         remove_pending_change_notify_requests_by_mid(req->sconn, req->mid);
1327         remove_pending_lock_requests_by_mid_smb1(req->sconn, req->mid);
1328
1329         DEBUG(3,("reply_ntcancel: cancel called on mid = %llu.\n",
1330                 (unsigned long long)req->mid));
1331
1332         END_PROFILE(SMBntcancel);
1333         return;
1334 }
1335
1336 /****************************************************************************
1337  Copy a file.
1338 ****************************************************************************/
1339
1340 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1341                                 connection_struct *conn,
1342                                 struct smb_request *req,
1343                                 struct smb_filename *smb_fname_src,
1344                                 struct smb_filename *smb_fname_dst,
1345                                 uint32 attrs)
1346 {
1347         files_struct *fsp1,*fsp2;
1348         uint32 fattr;
1349         int info;
1350         SMB_OFF_T ret=-1;
1351         NTSTATUS status = NT_STATUS_OK;
1352         char *parent;
1353
1354         if (!CAN_WRITE(conn)) {
1355                 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1356                 goto out;
1357         }
1358
1359         /* Source must already exist. */
1360         if (!VALID_STAT(smb_fname_src->st)) {
1361                 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1362                 goto out;
1363         }
1364
1365         /* Ensure attributes match. */
1366         fattr = dos_mode(conn, smb_fname_src);
1367         if ((fattr & ~attrs) & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) {
1368                 status = NT_STATUS_NO_SUCH_FILE;
1369                 goto out;
1370         }
1371
1372         /* Disallow if dst file already exists. */
1373         if (VALID_STAT(smb_fname_dst->st)) {
1374                 status = NT_STATUS_OBJECT_NAME_COLLISION;
1375                 goto out;
1376         }
1377
1378         /* No links from a directory. */
1379         if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1380                 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1381                 goto out;
1382         }
1383
1384         DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1385                   smb_fname_str_dbg(smb_fname_src),
1386                   smb_fname_str_dbg(smb_fname_dst)));
1387
1388         status = SMB_VFS_CREATE_FILE(
1389                 conn,                                   /* conn */
1390                 req,                                    /* req */
1391                 0,                                      /* root_dir_fid */
1392                 smb_fname_src,                          /* fname */
1393                 FILE_READ_DATA|FILE_READ_ATTRIBUTES|
1394                         FILE_READ_EA,                   /* access_mask */
1395                 (FILE_SHARE_READ | FILE_SHARE_WRITE |   /* share_access */
1396                     FILE_SHARE_DELETE),
1397                 FILE_OPEN,                              /* create_disposition*/
1398                 0,                                      /* create_options */
1399                 FILE_ATTRIBUTE_NORMAL,                  /* file_attributes */
1400                 NO_OPLOCK,                              /* oplock_request */
1401                 0,                                      /* allocation_size */
1402                 0,                                      /* private_flags */
1403                 NULL,                                   /* sd */
1404                 NULL,                                   /* ea_list */
1405                 &fsp1,                                  /* result */
1406                 &info);                                 /* pinfo */
1407
1408         if (!NT_STATUS_IS_OK(status)) {
1409                 goto out;
1410         }
1411
1412         status = SMB_VFS_CREATE_FILE(
1413                 conn,                                   /* conn */
1414                 req,                                    /* req */
1415                 0,                                      /* root_dir_fid */
1416                 smb_fname_dst,                          /* fname */
1417                 FILE_WRITE_DATA|FILE_WRITE_ATTRIBUTES|
1418                         FILE_WRITE_EA,                  /* access_mask */
1419                 (FILE_SHARE_READ | FILE_SHARE_WRITE |   /* share_access */
1420                     FILE_SHARE_DELETE),
1421                 FILE_CREATE,                            /* create_disposition*/
1422                 0,                                      /* create_options */
1423                 fattr,                                  /* file_attributes */
1424                 NO_OPLOCK,                              /* oplock_request */
1425                 0,                                      /* allocation_size */
1426                 0,                                      /* private_flags */
1427                 NULL,                                   /* sd */
1428                 NULL,                                   /* ea_list */
1429                 &fsp2,                                  /* result */
1430                 &info);                                 /* pinfo */
1431
1432         if (!NT_STATUS_IS_OK(status)) {
1433                 close_file(NULL, fsp1, ERROR_CLOSE);
1434                 goto out;
1435         }
1436
1437         if (smb_fname_src->st.st_ex_size) {
1438                 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1439         }
1440
1441         /*
1442          * As we are opening fsp1 read-only we only expect
1443          * an error on close on fsp2 if we are out of space.
1444          * Thus we don't look at the error return from the
1445          * close of fsp1.
1446          */
1447         close_file(NULL, fsp1, NORMAL_CLOSE);
1448
1449         /* Ensure the modtime is set correctly on the destination file. */
1450         set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1451
1452         status = close_file(NULL, fsp2, NORMAL_CLOSE);
1453
1454         /* Grrr. We have to do this as open_file_ntcreate adds FILE_ATTRIBUTE_ARCHIVE when it
1455            creates the file. This isn't the correct thing to do in the copy
1456            case. JRA */
1457         if (!parent_dirname(talloc_tos(), smb_fname_dst->base_name, &parent,
1458                             NULL)) {
1459                 status = NT_STATUS_NO_MEMORY;
1460                 goto out;
1461         }
1462         file_set_dosmode(conn, smb_fname_dst, fattr, parent, false);
1463         TALLOC_FREE(parent);
1464
1465         if (ret < (SMB_OFF_T)smb_fname_src->st.st_ex_size) {
1466                 status = NT_STATUS_DISK_FULL;
1467                 goto out;
1468         }
1469  out:
1470         if (!NT_STATUS_IS_OK(status)) {
1471                 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1472                         nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1473                         smb_fname_str_dbg(smb_fname_dst)));
1474         }
1475
1476         return status;
1477 }
1478
1479 /****************************************************************************
1480  Reply to a NT rename request.
1481 ****************************************************************************/
1482
1483 void reply_ntrename(struct smb_request *req)
1484 {
1485         connection_struct *conn = req->conn;
1486         struct smb_filename *smb_fname_old = NULL;
1487         struct smb_filename *smb_fname_new = NULL;
1488         char *oldname = NULL;
1489         char *newname = NULL;
1490         const char *p;
1491         NTSTATUS status;
1492         bool src_has_wcard = False;
1493         bool dest_has_wcard = False;
1494         uint32 attrs;
1495         uint32_t ucf_flags_src = 0;
1496         uint32_t ucf_flags_dst = 0;
1497         uint16 rename_type;
1498         TALLOC_CTX *ctx = talloc_tos();
1499         bool stream_rename = false;
1500
1501         START_PROFILE(SMBntrename);
1502
1503         if (req->wct < 4) {
1504                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1505                 goto out;
1506         }
1507
1508         attrs = SVAL(req->vwv+0, 0);
1509         rename_type = SVAL(req->vwv+1, 0);
1510
1511         p = (const char *)req->buf + 1;
1512         p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1513                                        &status, &src_has_wcard);
1514         if (!NT_STATUS_IS_OK(status)) {
1515                 reply_nterror(req, status);
1516                 goto out;
1517         }
1518
1519         if (ms_has_wild(oldname)) {
1520                 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1521                 goto out;
1522         }
1523
1524         p++;
1525         p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1526                                        &status, &dest_has_wcard);
1527         if (!NT_STATUS_IS_OK(status)) {
1528                 reply_nterror(req, status);
1529                 goto out;
1530         }
1531
1532         if (!lp_posix_pathnames()) {
1533                 /* The newname must begin with a ':' if the
1534                    oldname contains a ':'. */
1535                 if (strchr_m(oldname, ':')) {
1536                         if (newname[0] != ':') {
1537                                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1538                                 goto out;
1539                         }
1540                         stream_rename = true;
1541                 }
1542         }
1543
1544         /*
1545          * If this is a rename operation, allow wildcards and save the
1546          * destination's last component.
1547          */
1548         if (rename_type == RENAME_FLAG_RENAME) {
1549                 ucf_flags_src = UCF_COND_ALLOW_WCARD_LCOMP;
1550                 ucf_flags_dst = UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1551         }
1552
1553         /* rename_internals() calls unix_convert(), so don't call it here. */
1554         status = filename_convert(ctx, conn,
1555                                   req->flags2 & FLAGS2_DFS_PATHNAMES,
1556                                   oldname,
1557                                   ucf_flags_src,
1558                                   NULL,
1559                                   &smb_fname_old);
1560         if (!NT_STATUS_IS_OK(status)) {
1561                 if (NT_STATUS_EQUAL(status,
1562                                     NT_STATUS_PATH_NOT_COVERED)) {
1563                         reply_botherror(req,
1564                                         NT_STATUS_PATH_NOT_COVERED,
1565                                         ERRSRV, ERRbadpath);
1566                         goto out;
1567                 }
1568                 reply_nterror(req, status);
1569                 goto out;
1570         }
1571
1572         status = filename_convert(ctx, conn,
1573                                   req->flags2 & FLAGS2_DFS_PATHNAMES,
1574                                   newname,
1575                                   ucf_flags_dst,
1576                                   &dest_has_wcard,
1577                                   &smb_fname_new);
1578         if (!NT_STATUS_IS_OK(status)) {
1579                 if (NT_STATUS_EQUAL(status,
1580                                     NT_STATUS_PATH_NOT_COVERED)) {
1581                         reply_botherror(req,
1582                                         NT_STATUS_PATH_NOT_COVERED,
1583                                         ERRSRV, ERRbadpath);
1584                         goto out;
1585                 }
1586                 reply_nterror(req, status);
1587                 goto out;
1588         }
1589
1590         if (stream_rename) {
1591                 /* smb_fname_new must be the same as smb_fname_old. */
1592                 TALLOC_FREE(smb_fname_new->base_name);
1593                 smb_fname_new->base_name = talloc_strdup(smb_fname_new,
1594                                                 smb_fname_old->base_name);
1595                 if (!smb_fname_new->base_name) {
1596                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1597                         goto out;
1598                 }
1599         }
1600
1601         DEBUG(3,("reply_ntrename: %s -> %s\n",
1602                  smb_fname_str_dbg(smb_fname_old),
1603                  smb_fname_str_dbg(smb_fname_new)));
1604
1605         switch(rename_type) {
1606                 case RENAME_FLAG_RENAME:
1607                         status = rename_internals(ctx, conn, req,
1608                                                   smb_fname_old, smb_fname_new,
1609                                                   attrs, False, src_has_wcard,
1610                                                   dest_has_wcard,
1611                                                   DELETE_ACCESS);
1612                         break;
1613                 case RENAME_FLAG_HARD_LINK:
1614                         if (src_has_wcard || dest_has_wcard) {
1615                                 /* No wildcards. */
1616                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1617                         } else {
1618                                 status = hardlink_internals(ctx, conn,
1619                                                             req,
1620                                                             false,
1621                                                             smb_fname_old,
1622                                                             smb_fname_new);
1623                         }
1624                         break;
1625                 case RENAME_FLAG_COPY:
1626                         if (src_has_wcard || dest_has_wcard) {
1627                                 /* No wildcards. */
1628                                 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1629                         } else {
1630                                 status = copy_internals(ctx, conn, req,
1631                                                         smb_fname_old,
1632                                                         smb_fname_new,
1633                                                         attrs);
1634                         }
1635                         break;
1636                 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1637                         status = NT_STATUS_INVALID_PARAMETER;
1638                         break;
1639                 default:
1640                         status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1641                         break;
1642         }
1643
1644         if (!NT_STATUS_IS_OK(status)) {
1645                 if (open_was_deferred(req->mid)) {
1646                         /* We have re-scheduled this call. */
1647                         goto out;
1648                 }
1649
1650                 reply_nterror(req, status);
1651                 goto out;
1652         }
1653
1654         reply_outbuf(req, 0, 0);
1655  out:
1656         END_PROFILE(SMBntrename);
1657         return;
1658 }
1659
1660 /****************************************************************************
1661  Reply to a notify change - queue the request and
1662  don't allow a directory to be opened.
1663 ****************************************************************************/
1664
1665 static void smbd_smb1_notify_reply(struct smb_request *req,
1666                                    NTSTATUS error_code,
1667                                    uint8_t *buf, size_t len)
1668 {
1669         send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1670 }
1671
1672 static void call_nt_transact_notify_change(connection_struct *conn,
1673                                            struct smb_request *req,
1674                                            uint16 **ppsetup,
1675                                            uint32 setup_count,
1676                                            char **ppparams,
1677                                            uint32 parameter_count,
1678                                            char **ppdata, uint32 data_count,
1679                                            uint32 max_data_count,
1680                                            uint32 max_param_count)
1681 {
1682         uint16 *setup = *ppsetup;
1683         files_struct *fsp;
1684         uint32 filter;
1685         NTSTATUS status;
1686         bool recursive;
1687
1688         if(setup_count < 6) {
1689                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1690                 return;
1691         }
1692
1693         fsp = file_fsp(req, SVAL(setup,4));
1694         filter = IVAL(setup, 0);
1695         recursive = (SVAL(setup, 6) != 0) ? True : False;
1696
1697         DEBUG(3,("call_nt_transact_notify_change\n"));
1698
1699         if(!fsp) {
1700                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1701                 return;
1702         }
1703
1704         {
1705                 char *filter_string;
1706
1707                 if (!(filter_string = notify_filter_string(NULL, filter))) {
1708                         reply_nterror(req,NT_STATUS_NO_MEMORY);
1709                         return;
1710                 }
1711
1712                 DEBUG(3,("call_nt_transact_notify_change: notify change "
1713                          "called on %s, filter = %s, recursive = %d\n",
1714                          fsp_str_dbg(fsp), filter_string, recursive));
1715
1716                 TALLOC_FREE(filter_string);
1717         }
1718
1719         if((!fsp->is_directory) || (conn != fsp->conn)) {
1720                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1721                 return;
1722         }
1723
1724         if (fsp->notify == NULL) {
1725
1726                 status = change_notify_create(fsp, filter, recursive);
1727
1728                 if (!NT_STATUS_IS_OK(status)) {
1729                         DEBUG(10, ("change_notify_create returned %s\n",
1730                                    nt_errstr(status)));
1731                         reply_nterror(req, status);
1732                         return;
1733                 }
1734         }
1735
1736         if (fsp->notify->num_changes != 0) {
1737
1738                 /*
1739                  * We've got changes pending, respond immediately
1740                  */
1741
1742                 /*
1743                  * TODO: write a torture test to check the filtering behaviour
1744                  * here.
1745                  */
1746
1747                 change_notify_reply(req,
1748                                     NT_STATUS_OK,
1749                                     max_param_count,
1750                                     fsp->notify,
1751                                     smbd_smb1_notify_reply);
1752
1753                 /*
1754                  * change_notify_reply() above has independently sent its
1755                  * results
1756                  */
1757                 return;
1758         }
1759
1760         /*
1761          * No changes pending, queue the request
1762          */
1763
1764         status = change_notify_add_request(req,
1765                         max_param_count,
1766                         filter,
1767                         recursive, fsp,
1768                         smbd_smb1_notify_reply);
1769         if (!NT_STATUS_IS_OK(status)) {
1770                 reply_nterror(req, status);
1771         }
1772         return;
1773 }
1774
1775 /****************************************************************************
1776  Reply to an NT transact rename command.
1777 ****************************************************************************/
1778
1779 static void call_nt_transact_rename(connection_struct *conn,
1780                                     struct smb_request *req,
1781                                     uint16 **ppsetup, uint32 setup_count,
1782                                     char **ppparams, uint32 parameter_count,
1783                                     char **ppdata, uint32 data_count,
1784                                     uint32 max_data_count)
1785 {
1786         char *params = *ppparams;
1787         char *new_name = NULL;
1788         files_struct *fsp = NULL;
1789         bool dest_has_wcard = False;
1790         NTSTATUS status;
1791         TALLOC_CTX *ctx = talloc_tos();
1792
1793         if(parameter_count < 5) {
1794                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1795                 return;
1796         }
1797
1798         fsp = file_fsp(req, SVAL(params, 0));
1799         if (!check_fsp(conn, req, fsp)) {
1800                 return;
1801         }
1802         srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1803                               parameter_count - 4,
1804                               STR_TERMINATE, &status, &dest_has_wcard);
1805         if (!NT_STATUS_IS_OK(status)) {
1806                 reply_nterror(req, status);
1807                 return;
1808         }
1809
1810         /*
1811          * W2K3 ignores this request as the RAW-RENAME test
1812          * demonstrates, so we do.
1813          */
1814         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1815
1816         DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1817                  fsp_str_dbg(fsp), new_name));
1818
1819         return;
1820 }
1821
1822 /******************************************************************************
1823  Fake up a completely empty SD.
1824 *******************************************************************************/
1825
1826 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, struct security_descriptor **ppsd)
1827 {
1828         size_t sd_size;
1829
1830         *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1831         if(!*ppsd) {
1832                 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1833                 return NT_STATUS_NO_MEMORY;
1834         }
1835
1836         return NT_STATUS_OK;
1837 }
1838
1839 /****************************************************************************
1840  Reply to query a security descriptor.
1841  Callable from SMB2 and SMB2.
1842  If it returns NT_STATUS_BUFFER_TOO_SMALL, pdata_size is initialized with
1843  the required size.
1844 ****************************************************************************/
1845
1846 NTSTATUS smbd_do_query_security_desc(connection_struct *conn,
1847                                         TALLOC_CTX *mem_ctx,
1848                                         files_struct *fsp,
1849                                         uint32_t security_info_wanted,
1850                                         uint32_t max_data_count,
1851                                         uint8_t **ppmarshalled_sd,
1852                                         size_t *psd_size)
1853 {
1854         NTSTATUS status;
1855         struct security_descriptor *psd = NULL;
1856
1857         /*
1858          * Get the permissions to return.
1859          */
1860
1861         if ((security_info_wanted & SECINFO_SACL) &&
1862                         !(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
1863                 return NT_STATUS_ACCESS_DENIED;
1864         }
1865
1866         if ((security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|SECINFO_GROUP)) &&
1867                         !(fsp->access_mask & SEC_STD_READ_CONTROL)) {
1868                 return NT_STATUS_ACCESS_DENIED;
1869         }
1870
1871         if (!lp_nt_acl_support(SNUM(conn))) {
1872                 status = get_null_nt_acl(mem_ctx, &psd);
1873         } else {
1874                 status = SMB_VFS_FGET_NT_ACL(
1875                         fsp, security_info_wanted, &psd);
1876         }
1877         if (!NT_STATUS_IS_OK(status)) {
1878                 return status;
1879         }
1880
1881         if (!(security_info_wanted & SECINFO_OWNER)) {
1882                 psd->owner_sid = NULL;
1883         }
1884         if (!(security_info_wanted & SECINFO_GROUP)) {
1885                 psd->group_sid = NULL;
1886         }
1887         if (!(security_info_wanted & SECINFO_DACL)) {
1888                 psd->dacl = NULL;
1889         }
1890         if (!(security_info_wanted & SECINFO_SACL)) {
1891                 psd->sacl = NULL;
1892         }
1893
1894         /* If the SACL/DACL is NULL, but was requested, we mark that it is
1895          * present in the reply to match Windows behavior */
1896         if (psd->sacl == NULL &&
1897             security_info_wanted & SECINFO_SACL)
1898                 psd->type |= SEC_DESC_SACL_PRESENT;
1899         if (psd->dacl == NULL &&
1900             security_info_wanted & SECINFO_DACL)
1901                 psd->type |= SEC_DESC_DACL_PRESENT;
1902
1903         *psd_size = ndr_size_security_descriptor(psd, 0);
1904
1905         DEBUG(3,("smbd_do_query_security_desc: sd_size = %lu.\n",
1906                 (unsigned long)*psd_size));
1907
1908         if (DEBUGLEVEL >= 10) {
1909                 DEBUG(10,("smbd_do_query_security_desc for file %s\n",
1910                           fsp_str_dbg(fsp)));
1911                 NDR_PRINT_DEBUG(security_descriptor, psd);
1912         }
1913
1914         if (max_data_count < *psd_size) {
1915                 TALLOC_FREE(psd);
1916                 return NT_STATUS_BUFFER_TOO_SMALL;
1917         }
1918
1919         status = marshall_sec_desc(mem_ctx, psd,
1920                                    ppmarshalled_sd, psd_size);
1921
1922         if (!NT_STATUS_IS_OK(status)) {
1923                 TALLOC_FREE(psd);
1924                 return status;
1925         }
1926
1927         TALLOC_FREE(psd);
1928         return NT_STATUS_OK;
1929 }
1930
1931 /****************************************************************************
1932  SMB1 reply to query a security descriptor.
1933 ****************************************************************************/
1934
1935 static void call_nt_transact_query_security_desc(connection_struct *conn,
1936                                                  struct smb_request *req,
1937                                                  uint16 **ppsetup,
1938                                                  uint32 setup_count,
1939                                                  char **ppparams,
1940                                                  uint32 parameter_count,
1941                                                  char **ppdata,
1942                                                  uint32 data_count,
1943                                                  uint32 max_data_count)
1944 {
1945         char *params = *ppparams;
1946         char *data = *ppdata;
1947         size_t sd_size = 0;
1948         uint32 security_info_wanted;
1949         files_struct *fsp = NULL;
1950         NTSTATUS status;
1951         uint8_t *marshalled_sd = NULL;
1952
1953         if(parameter_count < 8) {
1954                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1955                 return;
1956         }
1957
1958         fsp = file_fsp(req, SVAL(params,0));
1959         if(!fsp) {
1960                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1961                 return;
1962         }
1963
1964         security_info_wanted = IVAL(params,4);
1965
1966         DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
1967                  "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
1968                  (unsigned int)security_info_wanted));
1969
1970         params = nttrans_realloc(ppparams, 4);
1971         if(params == NULL) {
1972                 reply_nterror(req, NT_STATUS_NO_MEMORY);
1973                 return;
1974         }
1975
1976         /*
1977          * Get the permissions to return.
1978          */
1979
1980         status = smbd_do_query_security_desc(conn,
1981                                         talloc_tos(),
1982                                         fsp,
1983                                         security_info_wanted,
1984                                         max_data_count,
1985                                         &marshalled_sd,
1986                                         &sd_size);
1987
1988         if (NT_STATUS_EQUAL(status, NT_STATUS_BUFFER_TOO_SMALL)) {
1989                 SIVAL(params,0,(uint32_t)sd_size);
1990                 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1991                         params, 4, NULL, 0);
1992                 return;
1993         }
1994
1995         if (!NT_STATUS_IS_OK(status)) {
1996                 reply_nterror(req, status);
1997                 return;
1998         }
1999
2000         SMB_ASSERT(sd_size > 0);
2001
2002         SIVAL(params,0,(uint32_t)sd_size);
2003
2004         if (max_data_count < sd_size) {
2005                 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2006                                 params, 4, NULL, 0);
2007                 return;
2008         }
2009
2010         /*
2011          * Allocate the data we will return.
2012          */
2013
2014         data = nttrans_realloc(ppdata, sd_size);
2015         if(data == NULL) {
2016                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2017                 return;
2018         }
2019
2020         memcpy(data, marshalled_sd, sd_size);
2021
2022         send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
2023
2024         return;
2025 }
2026
2027 /****************************************************************************
2028  Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
2029 ****************************************************************************/
2030
2031 static void call_nt_transact_set_security_desc(connection_struct *conn,
2032                                                struct smb_request *req,
2033                                                uint16 **ppsetup,
2034                                                uint32 setup_count,
2035                                                char **ppparams,
2036                                                uint32 parameter_count,
2037                                                char **ppdata,
2038                                                uint32 data_count,
2039                                                uint32 max_data_count)
2040 {
2041         char *params= *ppparams;
2042         char *data = *ppdata;
2043         files_struct *fsp = NULL;
2044         uint32 security_info_sent = 0;
2045         NTSTATUS status;
2046
2047         if(parameter_count < 8) {
2048                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2049                 return;
2050         }
2051
2052         if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
2053                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2054                 return;
2055         }
2056
2057         if (!CAN_WRITE(fsp->conn)) {
2058                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2059                 return;
2060         }
2061
2062         if(!lp_nt_acl_support(SNUM(conn))) {
2063                 goto done;
2064         }
2065
2066         security_info_sent = IVAL(params,4);
2067
2068         DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
2069                  fsp_str_dbg(fsp), (unsigned int)security_info_sent));
2070
2071         if (data_count == 0) {
2072                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2073                 return;
2074         }
2075
2076         status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
2077
2078         if (!NT_STATUS_IS_OK(status)) {
2079                 reply_nterror(req, status);
2080                 return;
2081         }
2082
2083   done:
2084         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2085         return;
2086 }
2087
2088 /****************************************************************************
2089  Reply to NT IOCTL
2090 ****************************************************************************/
2091
2092 static void call_nt_transact_ioctl(connection_struct *conn,
2093                                    struct smb_request *req,
2094                                    uint16 **ppsetup, uint32 setup_count,
2095                                    char **ppparams, uint32 parameter_count,
2096                                    char **ppdata, uint32 data_count,
2097                                    uint32 max_data_count)
2098 {
2099         uint32 function;
2100         uint16 fidnum;
2101         files_struct *fsp;
2102         uint8 isFSctl;
2103         uint8 compfilter;
2104         char *pdata = *ppdata;
2105
2106         if (setup_count != 8) {
2107                 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
2108                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2109                 return;
2110         }
2111
2112         function = IVAL(*ppsetup, 0);
2113         fidnum = SVAL(*ppsetup, 4);
2114         isFSctl = CVAL(*ppsetup, 6);
2115         compfilter = CVAL(*ppsetup, 7);
2116
2117         DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n", 
2118                  function, fidnum, isFSctl, compfilter));
2119
2120         fsp=file_fsp(req, fidnum);
2121         /* this check is done in each implemented function case for now
2122            because I don't want to break anything... --metze
2123         FSP_BELONGS_CONN(fsp,conn);*/
2124
2125         SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
2126
2127         switch (function) {
2128         case FSCTL_SET_SPARSE:
2129         {
2130                 bool set_sparse = true;
2131                 NTSTATUS status;
2132
2133                 if (data_count >= 1 && pdata[0] == 0) {
2134                         set_sparse = false;
2135                 }
2136
2137                 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X]set[%u]\n",
2138                          fidnum, set_sparse));
2139
2140                 if (!check_fsp_open(conn, req, fsp)) {
2141                         return;
2142                 }
2143
2144                 status = file_set_sparse(conn, fsp, set_sparse);
2145                 if (!NT_STATUS_IS_OK(status)) {
2146                         DEBUG(9,("FSCTL_SET_SPARSE: fname[%s] set[%u] - %s\n",
2147                                  smb_fname_str_dbg(fsp->fsp_name), set_sparse, nt_errstr(status)));
2148                         reply_nterror(req, status);
2149                         return;
2150                 }
2151
2152                 DEBUG(10,("FSCTL_SET_SPARSE: fname[%s] set[%u] - %s\n",
2153                          smb_fname_str_dbg(fsp->fsp_name), set_sparse, nt_errstr(status)));
2154                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2155                 return;
2156         }
2157         case FSCTL_CREATE_OR_GET_OBJECT_ID:
2158         {
2159                 unsigned char objid[16];
2160
2161                 /* This should return the object-id on this file.
2162                  * I think I'll make this be the inode+dev. JRA.
2163                  */
2164
2165                 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
2166
2167                 if (!check_fsp_open(conn, req, fsp)) {
2168                         return;
2169                 }
2170
2171                 data_count = 64;
2172                 pdata = nttrans_realloc(ppdata, data_count);
2173                 if (pdata == NULL) {
2174                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2175                         return;
2176                 }
2177
2178                 /* For backwards compatibility only store the dev/inode. */
2179                 push_file_id_16(pdata, &fsp->file_id);
2180                 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
2181                 push_file_id_16(pdata+32, &fsp->file_id);
2182                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2183                                 pdata, data_count);
2184                 return;
2185         }
2186
2187         case FSCTL_GET_REPARSE_POINT:
2188                 /* pretend this fail - my winXP does it like this
2189                  * --metze
2190                  */
2191
2192                 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
2193                 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
2194                 return;
2195
2196         case FSCTL_SET_REPARSE_POINT:
2197                 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
2198                  * --metze
2199                  */
2200
2201                 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
2202                 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
2203                 return;
2204
2205         case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
2206         {
2207                 /*
2208                  * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
2209                  * and return their volume names.  If max_data_count is 16, then it is just
2210                  * asking for the number of volumes and length of the combined names.
2211                  *
2212                  * pdata is the data allocated by our caller, but that uses
2213                  * total_data_count (which is 0 in our case) rather than max_data_count.
2214                  * Allocate the correct amount and return the pointer to let
2215                  * it be deallocated when we return.
2216                  */
2217                 struct shadow_copy_data *shadow_data = NULL;
2218                 bool labels = False;
2219                 uint32 labels_data_count = 0;
2220                 uint32 i;
2221                 char *cur_pdata;
2222
2223                 if (!check_fsp_open(conn, req, fsp)) {
2224                         return;
2225                 }
2226
2227                 if (max_data_count < 16) {
2228                         DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
2229                                 max_data_count));
2230                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2231                         return;
2232                 }
2233
2234                 if (max_data_count > 16) {
2235                         labels = True;
2236                 }
2237
2238                 shadow_data = talloc_zero(talloc_tos(),
2239                                             struct shadow_copy_data);
2240                 if (shadow_data == NULL) {
2241                         DEBUG(0,("TALLOC_ZERO() failed!\n"));
2242                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2243                         return;
2244                 }
2245
2246                 /*
2247                  * Call the VFS routine to actually do the work.
2248                  */
2249                 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
2250                         TALLOC_FREE(shadow_data);
2251                         if (errno == ENOSYS) {
2252                                 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n", 
2253                                         conn->connectpath));
2254                                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2255                                 return;
2256                         } else {
2257                                 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n", 
2258                                         conn->connectpath));
2259                                 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
2260                                 return;
2261                         }
2262                 }
2263
2264                 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
2265
2266                 if (!labels) {
2267                         data_count = 16;
2268                 } else {
2269                         data_count = 12+labels_data_count+4;
2270                 }
2271
2272                 if (max_data_count<data_count) {
2273                         DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
2274                                 max_data_count,data_count));
2275                         TALLOC_FREE(shadow_data);
2276                         reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
2277                         return;
2278                 }
2279
2280                 pdata = nttrans_realloc(ppdata, data_count);
2281                 if (pdata == NULL) {
2282                         TALLOC_FREE(shadow_data);
2283                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2284                         return;
2285                 }
2286
2287                 cur_pdata = pdata;
2288
2289                 /* num_volumes 4 bytes */
2290                 SIVAL(pdata,0,shadow_data->num_volumes);
2291
2292                 if (labels) {
2293                         /* num_labels 4 bytes */
2294                         SIVAL(pdata,4,shadow_data->num_volumes);
2295                 }
2296
2297                 /* needed_data_count 4 bytes */
2298                 SIVAL(pdata, 8, labels_data_count+4);
2299
2300                 cur_pdata+=12;
2301
2302                 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
2303                           shadow_data->num_volumes, fsp_str_dbg(fsp)));
2304                 if (labels && shadow_data->labels) {
2305                         for (i=0;i<shadow_data->num_volumes;i++) {
2306                                 srvstr_push(pdata, req->flags2,
2307                                             cur_pdata, shadow_data->labels[i],
2308                                             2*sizeof(SHADOW_COPY_LABEL),
2309                                             STR_UNICODE|STR_TERMINATE);
2310                                 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
2311                                 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
2312                         }
2313                 }
2314
2315                 TALLOC_FREE(shadow_data);
2316
2317                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2318                                 pdata, data_count);
2319
2320                 return;
2321         }
2322
2323         case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
2324         {
2325                 /* pretend this succeeded -
2326                  *
2327                  * we have to send back a list with all files owned by this SID
2328                  *
2329                  * but I have to check that --metze
2330                  */
2331                 struct dom_sid sid;
2332                 uid_t uid;
2333                 size_t sid_len;
2334
2335                 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
2336
2337                 if (!check_fsp_open(conn, req, fsp)) {
2338                         return;
2339                 }
2340
2341                 if (data_count < 8) {
2342                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2343                         return;
2344                 }
2345
2346                 sid_len = MIN(data_count-4,SID_MAX_SIZE);
2347
2348                 /* unknown 4 bytes: this is not the length of the sid :-(  */
2349                 /*unknown = IVAL(pdata,0);*/
2350
2351                 if (!sid_parse(pdata+4,sid_len,&sid)) {
2352                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2353                         return;
2354                 }
2355                 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
2356
2357                 if (!sid_to_uid(&sid, &uid)) {
2358                         DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
2359                                  sid_string_dbg(&sid),
2360                                  (unsigned long)sid_len));
2361                         uid = (-1);
2362                 }
2363
2364                 /* we can take a look at the find source :-)
2365                  *
2366                  * find ./ -uid $uid  -name '*'   is what we need here
2367                  *
2368                  *
2369                  * and send 4bytes len and then NULL terminated unicode strings
2370                  * for each file
2371                  *
2372                  * but I don't know how to deal with the paged results
2373                  * (maybe we can hang the result anywhere in the fsp struct)
2374                  *
2375                  * we don't send all files at once
2376                  * and at the next we should *not* start from the beginning,
2377                  * so we have to cache the result
2378                  *
2379                  * --metze
2380                  */
2381
2382                 /* this works for now... */
2383                 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2384                 return;
2385         }
2386         case FSCTL_QUERY_ALLOCATED_RANGES:
2387         {
2388                 /* FIXME: This is just a dummy reply, telling that all of the
2389                  * file is allocated. MKS cp needs that.
2390                  * Adding the real allocated ranges via FIEMAP on Linux
2391                  * and SEEK_DATA/SEEK_HOLE on Solaris is needed to make
2392                  * this FSCTL correct for sparse files.
2393                  */
2394                 NTSTATUS status;
2395                 uint64_t offset, length;
2396
2397                 if (!check_fsp_open(conn, req, fsp)) {
2398                         return;
2399                 }
2400
2401                 if (data_count != 16) {
2402                         DEBUG(0,("FSCTL_QUERY_ALLOCATED_RANGES: data_count(%u) != 16 is invalid!\n",
2403                                 data_count));
2404                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2405                         return;
2406                 }
2407
2408                 if (max_data_count < 16) {
2409                         DEBUG(0,("FSCTL_QUERY_ALLOCATED_RANGES: max_data_count(%u) < 16 is invalid!\n",
2410                                 max_data_count));
2411                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2412                         return;
2413                 }
2414
2415                 offset = BVAL(pdata,0);
2416                 length = BVAL(pdata,8);
2417
2418                 if (offset + length < offset) {
2419                         /* No 64-bit integer wrap. */
2420                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2421                         return;
2422                 }
2423
2424                 status = vfs_stat_fsp(fsp);
2425                 if (!NT_STATUS_IS_OK(status)) {
2426                         reply_nterror(req, status);
2427                         return;
2428                 }
2429
2430                 if (offset > fsp->fsp_name->st.st_ex_size ||
2431                                 fsp->fsp_name->st.st_ex_size == 0 ||
2432                                 length == 0) {
2433                         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2434                 } else {
2435                         uint64_t end = offset + length;
2436                         end = MIN(end, fsp->fsp_name->st.st_ex_size);
2437                         SBVAL(pdata,0,0);
2438                         SBVAL(pdata,8,end);
2439                         send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2440                                 pdata, 16);
2441                 }
2442                 return;
2443         }
2444         case FSCTL_IS_VOLUME_DIRTY:
2445                 DEBUG(10,("FSCTL_IS_VOLUME_DIRTY: called on FID[0x%04X] "
2446                           "(but not implemented)\n", (int)fidnum));
2447                 /*
2448                  * http://msdn.microsoft.com/en-us/library/cc232128%28PROT.10%29.aspx
2449                  * says we have to respond with NT_STATUS_INVALID_PARAMETER
2450                  */
2451                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2452                 return;
2453         default:
2454                 /* Only print this once... */
2455                 if (!logged_ioctl_message) {
2456                         logged_ioctl_message = true;
2457                         DEBUG(2,("call_nt_transact_ioctl(0x%x): "
2458                                  "Currently not implemented.\n",
2459                                  function));
2460                 }
2461         }
2462
2463         reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2464 }
2465
2466
2467 #ifdef HAVE_SYS_QUOTAS
2468 /****************************************************************************
2469  Reply to get user quota
2470 ****************************************************************************/
2471
2472 static void call_nt_transact_get_user_quota(connection_struct *conn,
2473                                             struct smb_request *req,
2474                                             uint16 **ppsetup,
2475                                             uint32 setup_count,
2476                                             char **ppparams,
2477                                             uint32 parameter_count,
2478                                             char **ppdata,
2479                                             uint32 data_count,
2480                                             uint32 max_data_count)
2481 {
2482         NTSTATUS nt_status = NT_STATUS_OK;
2483         char *params = *ppparams;
2484         char *pdata = *ppdata;
2485         char *entry;
2486         int data_len=0,param_len=0;
2487         int qt_len=0;
2488         int entry_len = 0;
2489         files_struct *fsp = NULL;
2490         uint16 level = 0;
2491         size_t sid_len;
2492         struct dom_sid sid;
2493         bool start_enum = True;
2494         SMB_NTQUOTA_STRUCT qt;
2495         SMB_NTQUOTA_LIST *tmp_list;
2496         SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2497
2498         ZERO_STRUCT(qt);
2499
2500         /* access check */
2501         if (get_current_uid(conn) != 0) {
2502                 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2503                          "[%s]\n", lp_servicename(SNUM(conn)),
2504                          conn->session_info->unix_name));
2505                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2506                 return;
2507         }
2508
2509         /*
2510          * Ensure minimum number of parameters sent.
2511          */
2512
2513         if (parameter_count < 4) {
2514                 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2515                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2516                 return;
2517         }
2518
2519         /* maybe we can check the quota_fnum */
2520         fsp = file_fsp(req, SVAL(params,0));
2521         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2522                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2523                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2524                 return;
2525         }
2526
2527         /* the NULL pointer checking for fsp->fake_file_handle->pd
2528          * is done by CHECK_NTQUOTA_HANDLE_OK()
2529          */
2530         qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2531
2532         level = SVAL(params,2);
2533
2534         /* unknown 12 bytes leading in params */
2535
2536         switch (level) {
2537                 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2538                         /* seems that we should continue with the enum here --metze */
2539
2540                         if (qt_handle->quota_list!=NULL &&
2541                             qt_handle->tmp_list==NULL) {
2542
2543                                 /* free the list */
2544                                 free_ntquota_list(&(qt_handle->quota_list));
2545
2546                                 /* Realloc the size of parameters and data we will return */
2547                                 param_len = 4;
2548                                 params = nttrans_realloc(ppparams, param_len);
2549                                 if(params == NULL) {
2550                                         reply_nterror(req, NT_STATUS_NO_MEMORY);
2551                                         return;
2552                                 }
2553
2554                                 data_len = 0;
2555                                 SIVAL(params,0,data_len);
2556
2557                                 break;
2558                         }
2559
2560                         start_enum = False;
2561
2562                 case TRANSACT_GET_USER_QUOTA_LIST_START:
2563
2564                         if (qt_handle->quota_list==NULL &&
2565                                 qt_handle->tmp_list==NULL) {
2566                                 start_enum = True;
2567                         }
2568
2569                         if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2570                                 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2571                                 return;
2572                         }
2573
2574                         /* Realloc the size of parameters and data we will return */
2575                         param_len = 4;
2576                         params = nttrans_realloc(ppparams, param_len);
2577                         if(params == NULL) {
2578                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2579                                 return;
2580                         }
2581
2582                         /* we should not trust the value in max_data_count*/
2583                         max_data_count = MIN(max_data_count,2048);
2584
2585                         pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2586                         if(pdata == NULL) {
2587                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2588                                 return;
2589                         }
2590
2591                         entry = pdata;
2592
2593                         /* set params Size of returned Quota Data 4 bytes*/
2594                         /* but set it later when we know it */
2595
2596                         /* for each entry push the data */
2597
2598                         if (start_enum) {
2599                                 qt_handle->tmp_list = qt_handle->quota_list;
2600                         }
2601
2602                         tmp_list = qt_handle->tmp_list;
2603
2604                         for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2605                                 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2606
2607                                 sid_len = ndr_size_dom_sid(
2608                                         &tmp_list->quotas->sid, 0);
2609                                 entry_len = 40 + sid_len;
2610
2611                                 /* nextoffset entry 4 bytes */
2612                                 SIVAL(entry,0,entry_len);
2613
2614                                 /* then the len of the SID 4 bytes */
2615                                 SIVAL(entry,4,sid_len);
2616
2617                                 /* unknown data 8 bytes uint64_t */
2618                                 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2619
2620                                 /* the used disk space 8 bytes uint64_t */
2621                                 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2622
2623                                 /* the soft quotas 8 bytes uint64_t */
2624                                 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2625
2626                                 /* the hard quotas 8 bytes uint64_t */
2627                                 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2628
2629                                 /* and now the SID */
2630                                 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2631                         }
2632
2633                         qt_handle->tmp_list = tmp_list;
2634
2635                         /* overwrite the offset of the last entry */
2636                         SIVAL(entry-entry_len,0,0);
2637
2638                         data_len = 4+qt_len;
2639                         /* overwrite the params quota_data_len */
2640                         SIVAL(params,0,data_len);
2641
2642                         break;
2643
2644                 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2645
2646                         /* unknown 4 bytes IVAL(pdata,0) */
2647
2648                         if (data_count < 8) {
2649                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2650                                 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2651                                 return;
2652                         }
2653
2654                         sid_len = IVAL(pdata,4);
2655                         /* Ensure this is less than 1mb. */
2656                         if (sid_len > (1024*1024)) {
2657                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2658                                 return;
2659                         }
2660
2661                         if (data_count < 8+sid_len) {
2662                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2663                                 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2664                                 return;
2665                         }
2666
2667                         data_len = 4+40+sid_len;
2668
2669                         if (max_data_count < data_len) {
2670                                 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2671                                         max_data_count, data_len));
2672                                 param_len = 4;
2673                                 SIVAL(params,0,data_len);
2674                                 data_len = 0;
2675                                 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2676                                 break;
2677                         }
2678
2679                         if (!sid_parse(pdata+8,sid_len,&sid)) {
2680                                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2681                                 return;
2682                         }
2683
2684                         if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2685                                 ZERO_STRUCT(qt);
2686                                 /*
2687                                  * we have to return zero's in all fields
2688                                  * instead of returning an error here
2689                                  * --metze
2690                                  */
2691                         }
2692
2693                         /* Realloc the size of parameters and data we will return */
2694                         param_len = 4;
2695                         params = nttrans_realloc(ppparams, param_len);
2696                         if(params == NULL) {
2697                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2698                                 return;
2699                         }
2700
2701                         pdata = nttrans_realloc(ppdata, data_len);
2702                         if(pdata == NULL) {
2703                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2704                                 return;
2705                         }
2706
2707                         entry = pdata;
2708
2709                         /* set params Size of returned Quota Data 4 bytes*/
2710                         SIVAL(params,0,data_len);
2711
2712                         /* nextoffset entry 4 bytes */
2713                         SIVAL(entry,0,0);
2714
2715                         /* then the len of the SID 4 bytes */
2716                         SIVAL(entry,4,sid_len);
2717
2718                         /* unknown data 8 bytes uint64_t */
2719                         SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2720
2721                         /* the used disk space 8 bytes uint64_t */
2722                         SBIG_UINT(entry,16,qt.usedspace);
2723
2724                         /* the soft quotas 8 bytes uint64_t */
2725                         SBIG_UINT(entry,24,qt.softlim);
2726
2727                         /* the hard quotas 8 bytes uint64_t */
2728                         SBIG_UINT(entry,32,qt.hardlim);
2729
2730                         /* and now the SID */
2731                         sid_linearize(entry+40, sid_len, &sid);
2732
2733                         break;
2734
2735                 default:
2736                         DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2737                         reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2738                         return;
2739                         break;
2740         }
2741
2742         send_nt_replies(conn, req, nt_status, params, param_len,
2743                         pdata, data_len);
2744 }
2745
2746 /****************************************************************************
2747  Reply to set user quota
2748 ****************************************************************************/
2749
2750 static void call_nt_transact_set_user_quota(connection_struct *conn,
2751                                             struct smb_request *req,
2752                                             uint16 **ppsetup,
2753                                             uint32 setup_count,
2754                                             char **ppparams,
2755                                             uint32 parameter_count,
2756                                             char **ppdata,
2757                                             uint32 data_count,
2758                                             uint32 max_data_count)
2759 {
2760         char *params = *ppparams;
2761         char *pdata = *ppdata;
2762         int data_len=0,param_len=0;
2763         SMB_NTQUOTA_STRUCT qt;
2764         size_t sid_len;
2765         struct dom_sid sid;
2766         files_struct *fsp = NULL;
2767
2768         ZERO_STRUCT(qt);
2769
2770         /* access check */
2771         if (get_current_uid(conn) != 0) {
2772                 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2773                          "[%s]\n", lp_servicename(SNUM(conn)),
2774                          conn->session_info->unix_name));
2775                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2776                 return;
2777         }
2778
2779         /*
2780          * Ensure minimum number of parameters sent.
2781          */
2782
2783         if (parameter_count < 2) {
2784                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2785                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2786                 return;
2787         }
2788
2789         /* maybe we can check the quota_fnum */
2790         fsp = file_fsp(req, SVAL(params,0));
2791         if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2792                 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2793                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2794                 return;
2795         }
2796
2797         if (data_count < 40) {
2798                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2799                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2800                 return;
2801         }
2802
2803         /* offset to next quota record.
2804          * 4 bytes IVAL(pdata,0)
2805          * unused here...
2806          */
2807
2808         /* sid len */
2809         sid_len = IVAL(pdata,4);
2810
2811         if (data_count < 40+sid_len || (40+sid_len < sid_len)) {
2812                 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2813                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2814                 return;
2815         }
2816
2817         /* unknown 8 bytes in pdata
2818          * maybe its the change time in NTTIME
2819          */
2820
2821         /* the used space 8 bytes (uint64_t)*/
2822         qt.usedspace = BVAL(pdata,16);
2823
2824         /* the soft quotas 8 bytes (uint64_t)*/
2825         qt.softlim = BVAL(pdata,24);
2826
2827         /* the hard quotas 8 bytes (uint64_t)*/
2828         qt.hardlim = BVAL(pdata,32);
2829
2830         if (!sid_parse(pdata+40,sid_len,&sid)) {
2831                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2832                 return;
2833         }
2834
2835         DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2836
2837         /* 44 unknown bytes left... */
2838
2839         if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2840                 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2841                 return;
2842         }
2843
2844         send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2845                         pdata, data_len);
2846 }
2847 #endif /* HAVE_SYS_QUOTAS */
2848
2849 static void handle_nttrans(connection_struct *conn,
2850                            struct trans_state *state,
2851                            struct smb_request *req)
2852 {
2853         if (get_Protocol() >= PROTOCOL_NT1) {
2854                 req->flags2 |= 0x40; /* IS_LONG_NAME */
2855                 SSVAL(discard_const_p(uint8_t, req->inbuf),smb_flg2,req->flags2);
2856         }
2857
2858
2859         SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2860
2861         /* Now we must call the relevant NT_TRANS function */
2862         switch(state->call) {
2863                 case NT_TRANSACT_CREATE:
2864                 {
2865                         START_PROFILE(NT_transact_create);
2866                         call_nt_transact_create(
2867                                 conn, req,
2868                                 &state->setup, state->setup_count,
2869                                 &state->param, state->total_param,
2870                                 &state->data, state->total_data,
2871                                 state->max_data_return);
2872                         END_PROFILE(NT_transact_create);
2873                         break;
2874                 }
2875
2876                 case NT_TRANSACT_IOCTL:
2877                 {
2878                         START_PROFILE(NT_transact_ioctl);
2879                         call_nt_transact_ioctl(
2880                                 conn, req,
2881                                 &state->setup, state->setup_count,
2882                                 &state->param, state->total_param,
2883                                 &state->data, state->total_data,
2884                                 state->max_data_return);
2885                         END_PROFILE(NT_transact_ioctl);
2886                         break;
2887                 }
2888
2889                 case NT_TRANSACT_SET_SECURITY_DESC:
2890                 {
2891                         START_PROFILE(NT_transact_set_security_desc);
2892                         call_nt_transact_set_security_desc(
2893                                 conn, req,
2894                                 &state->setup, state->setup_count,
2895                                 &state->param, state->total_param,
2896                                 &state->data, state->total_data,
2897                                 state->max_data_return);
2898                         END_PROFILE(NT_transact_set_security_desc);
2899                         break;
2900                 }
2901
2902                 case NT_TRANSACT_NOTIFY_CHANGE:
2903                 {
2904                         START_PROFILE(NT_transact_notify_change);
2905                         call_nt_transact_notify_change(
2906                                 conn, req,
2907                                 &state->setup, state->setup_count,
2908                                 &state->param, state->total_param,
2909                                 &state->data, state->total_data,
2910                                 state->max_data_return,
2911                                 state->max_param_return);
2912                         END_PROFILE(NT_transact_notify_change);
2913                         break;
2914                 }
2915
2916                 case NT_TRANSACT_RENAME:
2917                 {
2918                         START_PROFILE(NT_transact_rename);
2919                         call_nt_transact_rename(
2920                                 conn, req,
2921                                 &state->setup, state->setup_count,
2922                                 &state->param, state->total_param,
2923                                 &state->data, state->total_data,
2924                                 state->max_data_return);
2925                         END_PROFILE(NT_transact_rename);
2926                         break;
2927                 }
2928
2929                 case NT_TRANSACT_QUERY_SECURITY_DESC:
2930                 {
2931                         START_PROFILE(NT_transact_query_security_desc);
2932                         call_nt_transact_query_security_desc(
2933                                 conn, req,
2934                                 &state->setup, state->setup_count,
2935                                 &state->param, state->total_param,
2936                                 &state->data, state->total_data,
2937                                 state->max_data_return);
2938                         END_PROFILE(NT_transact_query_security_desc);
2939                         break;
2940                 }
2941
2942 #ifdef HAVE_SYS_QUOTAS
2943                 case NT_TRANSACT_GET_USER_QUOTA:
2944                 {
2945                         START_PROFILE(NT_transact_get_user_quota);
2946                         call_nt_transact_get_user_quota(
2947                                 conn, req,
2948                                 &state->setup, state->setup_count,
2949                                 &state->param, state->total_param,
2950                                 &state->data, state->total_data,
2951                                 state->max_data_return);
2952                         END_PROFILE(NT_transact_get_user_quota);
2953                         break;
2954                 }
2955
2956                 case NT_TRANSACT_SET_USER_QUOTA:
2957                 {
2958                         START_PROFILE(NT_transact_set_user_quota);
2959                         call_nt_transact_set_user_quota(
2960                                 conn, req,
2961                                 &state->setup, state->setup_count,
2962                                 &state->param, state->total_param,
2963                                 &state->data, state->total_data,
2964                                 state->max_data_return);
2965                         END_PROFILE(NT_transact_set_user_quota);
2966                         break;
2967                 }
2968 #endif /* HAVE_SYS_QUOTAS */
2969
2970                 default:
2971                         /* Error in request */
2972                         DEBUG(0,("handle_nttrans: Unknown request %d in "
2973                                  "nttrans call\n", state->call));
2974                         reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2975                         return;
2976         }
2977         return;
2978 }
2979
2980 /****************************************************************************
2981  Reply to a SMBNTtrans.
2982 ****************************************************************************/
2983
2984 void reply_nttrans(struct smb_request *req)
2985 {
2986         connection_struct *conn = req->conn;
2987         uint32_t pscnt;
2988         uint32_t psoff;
2989         uint32_t dscnt;
2990         uint32_t dsoff;
2991         uint16 function_code;
2992         NTSTATUS result;
2993         struct trans_state *state;
2994
2995         START_PROFILE(SMBnttrans);
2996
2997         if (req->wct < 19) {
2998                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2999                 END_PROFILE(SMBnttrans);
3000                 return;
3001         }
3002
3003         pscnt = IVAL(req->vwv+9, 1);
3004         psoff = IVAL(req->vwv+11, 1);
3005         dscnt = IVAL(req->vwv+13, 1);
3006         dsoff = IVAL(req->vwv+15, 1);
3007         function_code = SVAL(req->vwv+18, 0);
3008
3009         if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
3010                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
3011                 END_PROFILE(SMBnttrans);
3012                 return;
3013         }
3014
3015         result = allow_new_trans(conn->pending_trans, req->mid);
3016         if (!NT_STATUS_IS_OK(result)) {
3017                 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
3018                 reply_nterror(req, result);
3019                 END_PROFILE(SMBnttrans);
3020                 return;
3021         }
3022
3023         if ((state = talloc(conn, struct trans_state)) == NULL) {
3024                 reply_nterror(req, NT_STATUS_NO_MEMORY);
3025                 END_PROFILE(SMBnttrans);
3026                 return;
3027         }
3028
3029         state->cmd = SMBnttrans;
3030
3031         state->mid = req->mid;
3032         state->vuid = req->vuid;
3033         state->total_data = IVAL(req->vwv+3, 1);
3034         state->data = NULL;
3035         state->total_param = IVAL(req->vwv+1, 1);
3036         state->param = NULL;
3037         state->max_data_return = IVAL(req->vwv+7, 1);
3038         state->max_param_return = IVAL(req->vwv+5, 1);
3039
3040         /* setup count is in *words* */
3041         state->setup_count = 2*CVAL(req->vwv+17, 1);
3042         state->setup = NULL;
3043         state->call = function_code;
3044
3045         DEBUG(10, ("num_setup=%u, "
3046                    "param_total=%u, this_param=%u, max_param=%u, "
3047                    "data_total=%u, this_data=%u, max_data=%u, "
3048                    "param_offset=%u, data_offset=%u\n",
3049                    (unsigned)state->setup_count,
3050                    (unsigned)state->total_param, (unsigned)pscnt,
3051                    (unsigned)state->max_param_return,
3052                    (unsigned)state->total_data, (unsigned)dscnt,
3053                    (unsigned)state->max_data_return,
3054                    (unsigned)psoff, (unsigned)dsoff));
3055
3056         /*
3057          * All nttrans messages we handle have smb_wct == 19 +
3058          * state->setup_count.  Ensure this is so as a sanity check.
3059          */
3060
3061         if(req->wct != 19 + (state->setup_count/2)) {
3062                 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
3063                          req->wct, 19 + (state->setup_count/2)));
3064                 goto bad_param;
3065         }
3066
3067         /* Don't allow more than 128mb for each value. */
3068         if ((state->total_data > (1024*1024*128)) ||
3069             (state->total_param > (1024*1024*128))) {
3070                 reply_nterror(req, NT_STATUS_NO_MEMORY);
3071                 END_PROFILE(SMBnttrans);
3072                 return;
3073         }
3074
3075         if ((dscnt > state->total_data) || (pscnt > state->total_param))
3076                 goto bad_param;
3077
3078         if (state->total_data)  {
3079
3080                 if (trans_oob(state->total_data, 0, dscnt)
3081                     || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
3082                         goto bad_param;
3083                 }
3084
3085                 /* Can't use talloc here, the core routines do realloc on the
3086                  * params and data. */
3087                 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
3088                         DEBUG(0,("reply_nttrans: data malloc fail for %u "
3089                                  "bytes !\n", (unsigned int)state->total_data));
3090                         TALLOC_FREE(state);
3091                         reply_nterror(req, NT_STATUS_NO_MEMORY);
3092                         END_PROFILE(SMBnttrans);
3093                         return;
3094                 }