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Got the logic simplification worked out so we still pass
[Samba/fernandojvsilva.git] / source3 / smbd / nttrans.c
blob66102fa96ccdbf90393d260dc4d6de988d5a28a1
1 /*
2 Unix SMB/CIFS implementation.
3 SMB NT transaction handling
4 Copyright (C) Jeremy Allison 1994-2007
5 Copyright (C) Stefan (metze) Metzmacher 2003
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
19 */
20
21 #include "includes.h"
22 #include "smbd/globals.h"
23
24 extern const struct generic_mapping file_generic_mapping;
25
26 static char *nttrans_realloc(char **ptr, size_t size)
27 {
28 if (ptr==NULL) {
29 smb_panic("nttrans_realloc() called with NULL ptr");
30 }
31
32 *ptr = (char *)SMB_REALLOC(*ptr, size);
33 if(*ptr == NULL) {
34 return NULL;
35 }
36 memset(*ptr,'\0',size);
37 return *ptr;
38 }
39
40 /****************************************************************************
41 Send the required number of replies back.
42 We assume all fields other than the data fields are
43 set correctly for the type of call.
44 HACK ! Always assumes smb_setup field is zero.
45 ****************************************************************************/
46
47 void send_nt_replies(connection_struct *conn,
48 struct smb_request *req, NTSTATUS nt_error,
49 char *params, int paramsize,
50 char *pdata, int datasize)
51 {
52 int data_to_send = datasize;
53 int params_to_send = paramsize;
54 int useable_space;
55 char *pp = params;
56 char *pd = pdata;
57 int params_sent_thistime, data_sent_thistime, total_sent_thistime;
58 int alignment_offset = 3;
59 int data_alignment_offset = 0;
60 struct smbd_server_connection *sconn = smbd_server_conn;
61 int max_send = sconn->smb1.sessions.max_send;
62
63 /*
64 * If there genuinely are no parameters or data to send just send
65 * the empty packet.
66 */
67
68 if(params_to_send == 0 && data_to_send == 0) {
69 reply_outbuf(req, 18, 0);
70 if (NT_STATUS_V(nt_error)) {
71 error_packet_set((char *)req->outbuf,
72 0, 0, nt_error,
73 __LINE__,__FILE__);
74 }
75 show_msg((char *)req->outbuf);
76 if (!srv_send_smb(smbd_server_fd(),
77 (char *)req->outbuf,
78 true, req->seqnum+1,
79 IS_CONN_ENCRYPTED(conn),
80 &req->pcd)) {
81 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
82 }
83 TALLOC_FREE(req->outbuf);
84 return;
85 }
86
87 /*
88 * When sending params and data ensure that both are nicely aligned.
89 * Only do this alignment when there is also data to send - else
90 * can cause NT redirector problems.
91 */
92
93 if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
94 data_alignment_offset = 4 - (params_to_send % 4);
95 }
96
97 /*
98 * Space is bufsize minus Netbios over TCP header minus SMB header.
99 * The alignment_offset is to align the param bytes on a four byte
100 * boundary (2 bytes for data len, one byte pad).
101 * NT needs this to work correctly.
102 */
103
104 useable_space = max_send - (smb_size
105 + 2 * 18 /* wct */
106 + alignment_offset
107 + data_alignment_offset);
108
109 if (useable_space < 0) {
110 char *msg = talloc_asprintf(
111 talloc_tos(),
112 "send_nt_replies failed sanity useable_space = %d!!!",
113 useable_space);
114 DEBUG(0, ("%s\n", msg));
115 exit_server_cleanly(msg);
116 }
117
118 while (params_to_send || data_to_send) {
119
120 /*
121 * Calculate whether we will totally or partially fill this packet.
122 */
123
124 total_sent_thistime = params_to_send + data_to_send;
125
126 /*
127 * We can never send more than useable_space.
128 */
129
130 total_sent_thistime = MIN(total_sent_thistime, useable_space);
131
132 reply_outbuf(req, 18,
133 total_sent_thistime + alignment_offset
134 + data_alignment_offset);
135
136 /*
137 * We might have had SMBnttranss in req->inbuf, fix that.
138 */
139 SCVAL(req->outbuf, smb_com, SMBnttrans);
140
141 /*
142 * Set total params and data to be sent.
143 */
144
145 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
146 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
147
148 /*
149 * Calculate how many parameters and data we can fit into
150 * this packet. Parameters get precedence.
151 */
152
153 params_sent_thistime = MIN(params_to_send,useable_space);
154 data_sent_thistime = useable_space - params_sent_thistime;
155 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
156
157 SIVAL(req->outbuf, smb_ntr_ParameterCount,
158 params_sent_thistime);
159
160 if(params_sent_thistime == 0) {
161 SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
162 SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
163 } else {
164 /*
165 * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
166 * parameter bytes, however the first 4 bytes of outbuf are
167 * the Netbios over TCP header. Thus use smb_base() to subtract
168 * them from the calculation.
169 */
170
171 SIVAL(req->outbuf,smb_ntr_ParameterOffset,
172 ((smb_buf(req->outbuf)+alignment_offset)
173 - smb_base(req->outbuf)));
174 /*
175 * Absolute displacement of param bytes sent in this packet.
176 */
177
178 SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
179 pp - params);
180 }
181
182 /*
183 * Deal with the data portion.
184 */
185
186 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
187
188 if(data_sent_thistime == 0) {
189 SIVAL(req->outbuf,smb_ntr_DataOffset,0);
190 SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
191 } else {
192 /*
193 * The offset of the data bytes is the offset of the
194 * parameter bytes plus the number of parameters being sent this time.
195 */
196
197 SIVAL(req->outbuf, smb_ntr_DataOffset,
198 ((smb_buf(req->outbuf)+alignment_offset) -
199 smb_base(req->outbuf))
200 + params_sent_thistime + data_alignment_offset);
201 SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
202 }
203
204 /*
205 * Copy the param bytes into the packet.
206 */
207
208 if(params_sent_thistime) {
209 if (alignment_offset != 0) {
210 memset(smb_buf(req->outbuf), 0,
211 alignment_offset);
212 }
213 memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
214 params_sent_thistime);
215 }
216
217 /*
218 * Copy in the data bytes
219 */
220
221 if(data_sent_thistime) {
222 if (data_alignment_offset != 0) {
223 memset((smb_buf(req->outbuf)+alignment_offset+
224 params_sent_thistime), 0,
225 data_alignment_offset);
226 }
227 memcpy(smb_buf(req->outbuf)+alignment_offset
228 +params_sent_thistime+data_alignment_offset,
229 pd,data_sent_thistime);
230 }
231
232 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
233 params_sent_thistime, data_sent_thistime, useable_space));
234 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
235 params_to_send, data_to_send, paramsize, datasize));
236
237 if (NT_STATUS_V(nt_error)) {
238 error_packet_set((char *)req->outbuf,
239 0, 0, nt_error,
240 __LINE__,__FILE__);
241 }
242
243 /* Send the packet */
244 show_msg((char *)req->outbuf);
245 if (!srv_send_smb(smbd_server_fd(),
246 (char *)req->outbuf,
247 true, req->seqnum+1,
248 IS_CONN_ENCRYPTED(conn),
249 &req->pcd)) {
250 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
251 }
252
253 TALLOC_FREE(req->outbuf);
254
255 pp += params_sent_thistime;
256 pd += data_sent_thistime;
257
258 params_to_send -= params_sent_thistime;
259 data_to_send -= data_sent_thistime;
260
261 /*
262 * Sanity check
263 */
264
265 if(params_to_send < 0 || data_to_send < 0) {
266 DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
267 params_to_send, data_to_send));
268 exit_server_cleanly("send_nt_replies: internal error");
269 }
270 }
271 }
272
273 /****************************************************************************
274 Reply to an NT create and X call on a pipe
275 ****************************************************************************/
276
277 static void nt_open_pipe(char *fname, connection_struct *conn,
278 struct smb_request *req, int *ppnum)
279 {
280 files_struct *fsp;
281 NTSTATUS status;
282
283 DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
284
285 /* Strip \\ off the name. */
286 fname++;
287
288 status = open_np_file(req, fname, &fsp);
289 if (!NT_STATUS_IS_OK(status)) {
290 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
291 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
292 ERRDOS, ERRbadpipe);
293 return;
294 }
295 reply_nterror(req, status);
296 return;
297 }
298
299 *ppnum = fsp->fnum;
300 return;
301 }
302
303 /****************************************************************************
304 Reply to an NT create and X call for pipes.
305 ****************************************************************************/
306
307 static void do_ntcreate_pipe_open(connection_struct *conn,
308 struct smb_request *req)
309 {
310 char *fname = NULL;
311 int pnum = -1;
312 char *p = NULL;
313 uint32 flags = IVAL(req->vwv+3, 1);
314 TALLOC_CTX *ctx = talloc_tos();
315
316 srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
317
318 if (!fname) {
319 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
320 ERRDOS, ERRbadpipe);
321 return;
322 }
323 nt_open_pipe(fname, conn, req, &pnum);
324
325 if (req->outbuf) {
326 /* error reply */
327 return;
328 }
329
330 /*
331 * Deal with pipe return.
332 */
333
334 if (flags & EXTENDED_RESPONSE_REQUIRED) {
335 /* This is very strange. We
336 * return 50 words, but only set
337 * the wcnt to 42 ? It's definately
338 * what happens on the wire....
339 */
340 reply_outbuf(req, 50, 0);
341 SCVAL(req->outbuf,smb_wct,42);
342 } else {
343 reply_outbuf(req, 34, 0);
344 }
345
346 p = (char *)req->outbuf + smb_vwv2;
347 p++;
348 SSVAL(p,0,pnum);
349 p += 2;
350 SIVAL(p,0,FILE_WAS_OPENED);
351 p += 4;
352 p += 32;
353 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
354 p += 20;
355 /* File type. */
356 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
357 /* Device state. */
358 SSVAL(p,2, 0x5FF); /* ? */
359 p += 4;
360
361 if (flags & EXTENDED_RESPONSE_REQUIRED) {
362 p += 25;
363 SIVAL(p,0,FILE_GENERIC_ALL);
364 /*
365 * For pipes W2K3 seems to return
366 * 0x12019B next.
367 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
368 */
369 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
370 }
371
372 DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
373
374 chain_reply(req);
375 }
376
377 /****************************************************************************
378 Reply to an NT create and X call.
379 ****************************************************************************/
380
381 void reply_ntcreate_and_X(struct smb_request *req)
382 {
383 connection_struct *conn = req->conn;
384 struct smb_filename *smb_fname = NULL;
385 char *fname = NULL;
386 uint32 flags;
387 uint32 access_mask;
388 uint32 file_attributes;
389 uint32 share_access;
390 uint32 create_disposition;
391 uint32 create_options;
392 uint16 root_dir_fid;
393 uint64_t allocation_size;
394 /* Breakout the oplock request bits so we can set the
395 reply bits separately. */
396 uint32 fattr=0;
397 SMB_OFF_T file_len = 0;
398 int info = 0;
399 files_struct *fsp = NULL;
400 char *p = NULL;
401 struct timespec create_timespec;
402 struct timespec c_timespec;
403 struct timespec a_timespec;
404 struct timespec m_timespec;
405 struct timespec write_time_ts;
406 NTSTATUS status;
407 int oplock_request;
408 uint8_t oplock_granted = NO_OPLOCK_RETURN;
409 TALLOC_CTX *ctx = talloc_tos();
410
411 START_PROFILE(SMBntcreateX);
412
413 if (req->wct < 24) {
414 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
415 return;
416 }
417
418 flags = IVAL(req->vwv+3, 1);
419 access_mask = IVAL(req->vwv+7, 1);
420 file_attributes = IVAL(req->vwv+13, 1);
421 share_access = IVAL(req->vwv+15, 1);
422 create_disposition = IVAL(req->vwv+17, 1);
423 create_options = IVAL(req->vwv+19, 1);
424 root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
425
426 allocation_size = (uint64_t)IVAL(req->vwv+9, 1);
427 #ifdef LARGE_SMB_OFF_T
428 allocation_size |= (((uint64_t)IVAL(req->vwv+11, 1)) << 32);
429 #endif
430
431 srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
432 STR_TERMINATE, &status);
433
434 if (!NT_STATUS_IS_OK(status)) {
435 reply_nterror(req, status);
436 goto out;
437 }
438
439 DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
440 "file_attributes = 0x%x, share_access = 0x%x, "
441 "create_disposition = 0x%x create_options = 0x%x "
442 "root_dir_fid = 0x%x, fname = %s\n",
443 (unsigned int)flags,
444 (unsigned int)access_mask,
445 (unsigned int)file_attributes,
446 (unsigned int)share_access,
447 (unsigned int)create_disposition,
448 (unsigned int)create_options,
449 (unsigned int)root_dir_fid,
450 fname));
451
452 /*
453 * we need to remove ignored bits when they come directly from the client
454 * because we reuse some of them for internal stuff
455 */
456 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
457
458 /*
459 * If it's an IPC, use the pipe handler.
460 */
461
462 if (IS_IPC(conn)) {
463 if (lp_nt_pipe_support()) {
464 do_ntcreate_pipe_open(conn, req);
465 goto out;
466 }
467 reply_doserror(req, ERRDOS, ERRnoaccess);
468 goto out;
469 }
470
471 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
472 if (oplock_request) {
473 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
474 ? BATCH_OPLOCK : 0;
475 }
476
477 status = filename_convert(ctx,
478 conn,
479 req->flags2 & FLAGS2_DFS_PATHNAMES,
480 fname,
481 0,
482 NULL,
483 &smb_fname);
484
485 if (!NT_STATUS_IS_OK(status)) {
486 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
487 reply_botherror(req,
488 NT_STATUS_PATH_NOT_COVERED,
489 ERRSRV, ERRbadpath);
490 goto out;
491 }
492 reply_nterror(req, status);
493 goto out;
494 }
495
496 status = SMB_VFS_CREATE_FILE(
497 conn, /* conn */
498 req, /* req */
499 root_dir_fid, /* root_dir_fid */
500 smb_fname, /* fname */
501 access_mask, /* access_mask */
502 share_access, /* share_access */
503 create_disposition, /* create_disposition*/
504 create_options, /* create_options */
505 file_attributes, /* file_attributes */
506 oplock_request, /* oplock_request */
507 allocation_size, /* allocation_size */
508 NULL, /* sd */
509 NULL, /* ea_list */
510 &fsp, /* result */
511 &info); /* pinfo */
512
513 if (!NT_STATUS_IS_OK(status)) {
514 if (open_was_deferred(req->mid)) {
515 /* We have re-scheduled this call, no error. */
516 goto out;
517 }
518 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_COLLISION)) {
519 reply_botherror(req, status, ERRDOS, ERRfilexists);
520 }
521 else {
522 reply_nterror(req, status);
523 }
524 goto out;
525 }
526
527 /* Ensure we're pointing at the correct stat struct. */
528 TALLOC_FREE(smb_fname);
529 smb_fname = fsp->fsp_name;
530
531 /*
532 * If the caller set the extended oplock request bit
533 * and we granted one (by whatever means) - set the
534 * correct bit for extended oplock reply.
535 */
536
537 if (oplock_request &&
538 (lp_fake_oplocks(SNUM(conn))
539 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
540
541 /*
542 * Exclusive oplock granted
543 */
544
545 if (flags & REQUEST_BATCH_OPLOCK) {
546 oplock_granted = BATCH_OPLOCK_RETURN;
547 } else {
548 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
549 }
550 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
551 oplock_granted = LEVEL_II_OPLOCK_RETURN;
552 } else {
553 oplock_granted = NO_OPLOCK_RETURN;
554 }
555
556 file_len = smb_fname->st.st_ex_size;
557 fattr = dos_mode(conn, smb_fname);
558 if (fattr == 0) {
559 fattr = FILE_ATTRIBUTE_NORMAL;
560 }
561
562 if (flags & EXTENDED_RESPONSE_REQUIRED) {
563 /* This is very strange. We
564 * return 50 words, but only set
565 * the wcnt to 42 ? It's definately
566 * what happens on the wire....
567 */
568 reply_outbuf(req, 50, 0);
569 SCVAL(req->outbuf,smb_wct,42);
570 } else {
571 reply_outbuf(req, 34, 0);
572 }
573
574 p = (char *)req->outbuf + smb_vwv2;
575
576 SCVAL(p, 0, oplock_granted);
577
578 p++;
579 SSVAL(p,0,fsp->fnum);
580 p += 2;
581 if ((create_disposition == FILE_SUPERSEDE)
582 && (info == FILE_WAS_OVERWRITTEN)) {
583 SIVAL(p,0,FILE_WAS_SUPERSEDED);
584 } else {
585 SIVAL(p,0,info);
586 }
587 p += 4;
588
589 /* Deal with other possible opens having a modified
590 write time. JRA. */
591 ZERO_STRUCT(write_time_ts);
592 get_file_infos(fsp->file_id, NULL, &write_time_ts);
593 if (!null_timespec(write_time_ts)) {
594 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
595 }
596
597 /* Create time. */
598 create_timespec = get_create_timespec(conn, fsp, smb_fname);
599 a_timespec = smb_fname->st.st_ex_atime;
600 m_timespec = smb_fname->st.st_ex_mtime;
601 c_timespec = get_change_timespec(conn, fsp, smb_fname);
602
603 if (lp_dos_filetime_resolution(SNUM(conn))) {
604 dos_filetime_timespec(&create_timespec);
605 dos_filetime_timespec(&a_timespec);
606 dos_filetime_timespec(&m_timespec);
607 dos_filetime_timespec(&c_timespec);
608 }
609
610 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
611 p += 8;
612 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
613 p += 8;
614 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
615 p += 8;
616 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
617 p += 8;
618 SIVAL(p,0,fattr); /* File Attributes. */
619 p += 4;
620 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
621 p += 8;
622 SOFF_T(p,0,file_len);
623 p += 8;
624 if (flags & EXTENDED_RESPONSE_REQUIRED) {
625 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
626 size_t num_names = 0;
627 unsigned int num_streams;
628 struct stream_struct *streams = NULL;
629
630 /* Do we have any EA's ? */
631 status = get_ea_names_from_file(ctx, conn, fsp,
632 smb_fname->base_name, NULL, &num_names);
633 if (NT_STATUS_IS_OK(status) && num_names) {
634 file_status &= ~NO_EAS;
635 }
636 status = SMB_VFS_STREAMINFO(conn, NULL, smb_fname->base_name, ctx,
637 &num_streams, &streams);
638 /* There is always one stream, ::$DATA. */
639 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
640 file_status &= ~NO_SUBSTREAMS;
641 }
642 TALLOC_FREE(streams);
643 SSVAL(p,2,file_status);
644 }
645 p += 4;
646 SCVAL(p,0,fsp->is_directory ? 1 : 0);
647
648 if (flags & EXTENDED_RESPONSE_REQUIRED) {
649 uint32 perms = 0;
650 p += 25;
651 if (fsp->is_directory ||
652 can_write_to_file(conn, smb_fname)) {
653 perms = FILE_GENERIC_ALL;
654 } else {
655 perms = FILE_GENERIC_READ|FILE_EXECUTE;
656 }
657 SIVAL(p,0,perms);
658 }
659
660 DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
661 fsp->fnum, smb_fname_str_dbg(smb_fname)));
662
663 chain_reply(req);
664 out:
665 END_PROFILE(SMBntcreateX);
666 return;
667 }
668
669 /****************************************************************************
670 Reply to a NT_TRANSACT_CREATE call to open a pipe.
671 ****************************************************************************/
672
673 static void do_nt_transact_create_pipe(connection_struct *conn,
674 struct smb_request *req,
675 uint16 **ppsetup, uint32 setup_count,
676 char **ppparams, uint32 parameter_count,
677 char **ppdata, uint32 data_count)
678 {
679 char *fname = NULL;
680 char *params = *ppparams;
681 int pnum = -1;
682 char *p = NULL;
683 NTSTATUS status;
684 size_t param_len;
685 uint32 flags;
686 TALLOC_CTX *ctx = talloc_tos();
687
688 /*
689 * Ensure minimum number of parameters sent.
690 */
691
692 if(parameter_count < 54) {
693 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
694 reply_doserror(req, ERRDOS, ERRnoaccess);
695 return;
696 }
697
698 flags = IVAL(params,0);
699
700 srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
701 parameter_count-53, STR_TERMINATE,
702 &status);
703 if (!NT_STATUS_IS_OK(status)) {
704 reply_nterror(req, status);
705 return;
706 }
707
708 nt_open_pipe(fname, conn, req, &pnum);
709
710 if (req->outbuf) {
711 /* Error return */
712 return;
713 }
714
715 /* Realloc the size of parameters and data we will return */
716 if (flags & EXTENDED_RESPONSE_REQUIRED) {
717 /* Extended response is 32 more byyes. */
718 param_len = 101;
719 } else {
720 param_len = 69;
721 }
722 params = nttrans_realloc(ppparams, param_len);
723 if(params == NULL) {
724 reply_doserror(req, ERRDOS, ERRnomem);
725 return;
726 }
727
728 p = params;
729 SCVAL(p,0,NO_OPLOCK_RETURN);
730
731 p += 2;
732 SSVAL(p,0,pnum);
733 p += 2;
734 SIVAL(p,0,FILE_WAS_OPENED);
735 p += 8;
736
737 p += 32;
738 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
739 p += 20;
740 /* File type. */
741 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
742 /* Device state. */
743 SSVAL(p,2, 0x5FF); /* ? */
744 p += 4;
745
746 if (flags & EXTENDED_RESPONSE_REQUIRED) {
747 p += 25;
748 SIVAL(p,0,FILE_GENERIC_ALL);
749 /*
750 * For pipes W2K3 seems to return
751 * 0x12019B next.
752 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
753 */
754 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
755 }
756
757 DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
758
759 /* Send the required number of replies */
760 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
761
762 return;
763 }
764
765 /****************************************************************************
766 Internal fn to set security descriptors.
767 ****************************************************************************/
768
769 static NTSTATUS set_sd(files_struct *fsp, uint8 *data, uint32 sd_len,
770 uint32 security_info_sent)
771 {
772 SEC_DESC *psd = NULL;
773 NTSTATUS status;
774
775 if (sd_len == 0 || !lp_nt_acl_support(SNUM(fsp->conn))) {
776 return NT_STATUS_OK;
777 }
778
779 status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
780
781 if (!NT_STATUS_IS_OK(status)) {
782 return status;
783 }
784
785 if (psd->owner_sid == NULL) {
786 security_info_sent &= ~OWNER_SECURITY_INFORMATION;
787 }
788 if (psd->group_sid == NULL) {
789 security_info_sent &= ~GROUP_SECURITY_INFORMATION;
790 }
791
792 /* Convert all the generic bits. */
793 security_acl_map_generic(psd->dacl, &file_generic_mapping);
794 security_acl_map_generic(psd->sacl, &file_generic_mapping);
795
796 if (DEBUGLEVEL >= 10) {
797 DEBUG(10,("set_sd for file %s\n", fsp_str_dbg(fsp)));
798 NDR_PRINT_DEBUG(security_descriptor, psd);
799 }
800
801 status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
802
803 TALLOC_FREE(psd);
804
805 return status;
806 }
807
808 /****************************************************************************
809 Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
810 ****************************************************************************/
811
812 struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
813 {
814 struct ea_list *ea_list_head = NULL;
815 size_t offset = 0;
816
817 if (data_size < 4) {
818 return NULL;
819 }
820
821 while (offset + 4 <= data_size) {
822 size_t next_offset = IVAL(pdata,offset);
823 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
824
825 if (!eal) {
826 return NULL;
827 }
828
829 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
830 if (next_offset == 0) {
831 break;
832 }
833 offset += next_offset;
834 }
835
836 return ea_list_head;
837 }
838
839 /****************************************************************************
840 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
841 ****************************************************************************/
842
843 static void call_nt_transact_create(connection_struct *conn,
844 struct smb_request *req,
845 uint16 **ppsetup, uint32 setup_count,
846 char **ppparams, uint32 parameter_count,
847 char **ppdata, uint32 data_count,
848 uint32 max_data_count)
849 {
850 struct smb_filename *smb_fname = NULL;
851 char *fname = NULL;
852 char *params = *ppparams;
853 char *data = *ppdata;
854 /* Breakout the oplock request bits so we can set the reply bits separately. */
855 uint32 fattr=0;
856 SMB_OFF_T file_len = 0;
857 int info = 0;
858 files_struct *fsp = NULL;
859 char *p = NULL;
860 uint32 flags;
861 uint32 access_mask;
862 uint32 file_attributes;
863 uint32 share_access;
864 uint32 create_disposition;
865 uint32 create_options;
866 uint32 sd_len;
867 struct security_descriptor *sd = NULL;
868 uint32 ea_len;
869 uint16 root_dir_fid;
870 struct timespec create_timespec;
871 struct timespec c_timespec;
872 struct timespec a_timespec;
873 struct timespec m_timespec;
874 struct timespec write_time_ts;
875 struct ea_list *ea_list = NULL;
876 NTSTATUS status;
877 size_t param_len;
878 uint64_t allocation_size;
879 int oplock_request;
880 uint8_t oplock_granted;
881 TALLOC_CTX *ctx = talloc_tos();
882
883 DEBUG(5,("call_nt_transact_create\n"));
884
885 /*
886 * If it's an IPC, use the pipe handler.
887 */
888
889 if (IS_IPC(conn)) {
890 if (lp_nt_pipe_support()) {
891 do_nt_transact_create_pipe(
892 conn, req,
893 ppsetup, setup_count,
894 ppparams, parameter_count,
895 ppdata, data_count);
896 goto out;
897 }
898 reply_doserror(req, ERRDOS, ERRnoaccess);
899 goto out;
900 }
901
902 /*
903 * Ensure minimum number of parameters sent.
904 */
905
906 if(parameter_count < 54) {
907 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
908 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
909 goto out;
910 }
911
912 flags = IVAL(params,0);
913 access_mask = IVAL(params,8);
914 file_attributes = IVAL(params,20);
915 share_access = IVAL(params,24);
916 create_disposition = IVAL(params,28);
917 create_options = IVAL(params,32);
918 sd_len = IVAL(params,36);
919 ea_len = IVAL(params,40);
920 root_dir_fid = (uint16)IVAL(params,4);
921 allocation_size = (uint64_t)IVAL(params,12);
922 #ifdef LARGE_SMB_OFF_T
923 allocation_size |= (((uint64_t)IVAL(params,16)) << 32);
924 #endif
925
926 /*
927 * we need to remove ignored bits when they come directly from the client
928 * because we reuse some of them for internal stuff
929 */
930 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
931
932 /* Ensure the data_len is correct for the sd and ea values given. */
933 if ((ea_len + sd_len > data_count)
934 || (ea_len > data_count) || (sd_len > data_count)
935 || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
936 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
937 "%u, data_count = %u\n", (unsigned int)ea_len,
938 (unsigned int)sd_len, (unsigned int)data_count));
939 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
940 goto out;
941 }
942
943 if (sd_len) {
944 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
945 sd_len));
946
947 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
948 &sd);
949 if (!NT_STATUS_IS_OK(status)) {
950 DEBUG(10, ("call_nt_transact_create: "
951 "unmarshall_sec_desc failed: %s\n",
952 nt_errstr(status)));
953 reply_nterror(req, status);
954 goto out;
955 }
956 }
957
958 if (ea_len) {
959 if (!lp_ea_support(SNUM(conn))) {
960 DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
961 "EA's not supported.\n",
962 (unsigned int)ea_len));
963 reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
964 goto out;
965 }
966
967 if (ea_len < 10) {
968 DEBUG(10,("call_nt_transact_create - ea_len = %u - "
969 "too small (should be more than 10)\n",
970 (unsigned int)ea_len ));
971 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
972 goto out;
973 }
974
975 /* We have already checked that ea_len <= data_count here. */
976 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
977 ea_len);
978 if (ea_list == NULL) {
979 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
980 goto out;
981 }
982 }
983
984 srvstr_get_path(ctx, params, req->flags2, &fname,
985 params+53, parameter_count-53,
986 STR_TERMINATE, &status);
987 if (!NT_STATUS_IS_OK(status)) {
988 reply_nterror(req, status);
989 goto out;
990 }
991
992 status = filename_convert(ctx,
993 conn,
994 req->flags2 & FLAGS2_DFS_PATHNAMES,
995 fname,
996 0,
997 NULL,
998 &smb_fname);
999
1000 if (!NT_STATUS_IS_OK(status)) {
1001 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1002 reply_botherror(req,
1003 NT_STATUS_PATH_NOT_COVERED,
1004 ERRSRV, ERRbadpath);
1005 goto out;
1006 }
1007 reply_nterror(req, status);
1008 goto out;
1009 }
1010
1011 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1012 if (oplock_request) {
1013 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1014 ? BATCH_OPLOCK : 0;
1015 }
1016
1017 status = SMB_VFS_CREATE_FILE(
1018 conn, /* conn */
1019 req, /* req */
1020 root_dir_fid, /* root_dir_fid */
1021 smb_fname, /* fname */
1022 access_mask, /* access_mask */
1023 share_access, /* share_access */
1024 create_disposition, /* create_disposition*/
1025 create_options, /* create_options */
1026 file_attributes, /* file_attributes */
1027 oplock_request, /* oplock_request */
1028 allocation_size, /* allocation_size */
1029 sd, /* sd */
1030 ea_list, /* ea_list */
1031 &fsp, /* result */
1032 &info); /* pinfo */
1033
1034 if(!NT_STATUS_IS_OK(status)) {
1035 if (open_was_deferred(req->mid)) {
1036 /* We have re-scheduled this call, no error. */
1037 return;
1038 }
1039 reply_openerror(req, status);
1040 goto out;
1041 }
1042
1043 /* Ensure we're pointing at the correct stat struct. */
1044 TALLOC_FREE(smb_fname);
1045 smb_fname = fsp->fsp_name;
1046
1047 /*
1048 * If the caller set the extended oplock request bit
1049 * and we granted one (by whatever means) - set the
1050 * correct bit for extended oplock reply.
1051 */
1052
1053 if (oplock_request &&
1054 (lp_fake_oplocks(SNUM(conn))
1055 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1056
1057 /*
1058 * Exclusive oplock granted
1059 */
1060
1061 if (flags & REQUEST_BATCH_OPLOCK) {
1062 oplock_granted = BATCH_OPLOCK_RETURN;
1063 } else {
1064 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1065 }
1066 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1067 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1068 } else {
1069 oplock_granted = NO_OPLOCK_RETURN;
1070 }
1071
1072 file_len = smb_fname->st.st_ex_size;
1073 fattr = dos_mode(conn, smb_fname);
1074 if (fattr == 0) {
1075 fattr = FILE_ATTRIBUTE_NORMAL;
1076 }
1077
1078 /* Realloc the size of parameters and data we will return */
1079 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1080 /* Extended response is 32 more byyes. */
1081 param_len = 101;
1082 } else {
1083 param_len = 69;
1084 }
1085 params = nttrans_realloc(ppparams, param_len);
1086 if(params == NULL) {
1087 reply_doserror(req, ERRDOS, ERRnomem);
1088 goto out;
1089 }
1090
1091 p = params;
1092 SCVAL(p, 0, oplock_granted);
1093
1094 p += 2;
1095 SSVAL(p,0,fsp->fnum);
1096 p += 2;
1097 if ((create_disposition == FILE_SUPERSEDE)
1098 && (info == FILE_WAS_OVERWRITTEN)) {
1099 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1100 } else {
1101 SIVAL(p,0,info);
1102 }
1103 p += 8;
1104
1105 /* Deal with other possible opens having a modified
1106 write time. JRA. */
1107 ZERO_STRUCT(write_time_ts);
1108 get_file_infos(fsp->file_id, NULL, &write_time_ts);
1109 if (!null_timespec(write_time_ts)) {
1110 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
1111 }
1112
1113 /* Create time. */
1114 create_timespec = get_create_timespec(conn, fsp, smb_fname);
1115 a_timespec = smb_fname->st.st_ex_atime;
1116 m_timespec = smb_fname->st.st_ex_mtime;
1117 c_timespec = get_change_timespec(conn, fsp, smb_fname);
1118
1119 if (lp_dos_filetime_resolution(SNUM(conn))) {
1120 dos_filetime_timespec(&create_timespec);
1121 dos_filetime_timespec(&a_timespec);
1122 dos_filetime_timespec(&m_timespec);
1123 dos_filetime_timespec(&c_timespec);
1124 }
1125
1126 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
1127 p += 8;
1128 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
1129 p += 8;
1130 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
1131 p += 8;
1132 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
1133 p += 8;
1134 SIVAL(p,0,fattr); /* File Attributes. */
1135 p += 4;
1136 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1137 p += 8;
1138 SOFF_T(p,0,file_len);
1139 p += 8;
1140 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1141 SSVAL(p,2,0x7);
1142 }
1143 p += 4;
1144 SCVAL(p,0,fsp->is_directory ? 1 : 0);
1145
1146 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1147 uint32 perms = 0;
1148 p += 25;
1149 if (fsp->is_directory ||
1150 can_write_to_file(conn, smb_fname)) {
1151 perms = FILE_GENERIC_ALL;
1152 } else {
1153 perms = FILE_GENERIC_READ|FILE_EXECUTE;
1154 }
1155 SIVAL(p,0,perms);
1156 }
1157
1158 DEBUG(5,("call_nt_transact_create: open name = %s\n",
1159 smb_fname_str_dbg(smb_fname)));
1160
1161 /* Send the required number of replies */
1162 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1163 out:
1164 return;
1165 }
1166
1167 /****************************************************************************
1168 Reply to a NT CANCEL request.
1169 conn POINTER CAN BE NULL HERE !
1170 ****************************************************************************/
1171
1172 void reply_ntcancel(struct smb_request *req)
1173 {
1174 /*
1175 * Go through and cancel any pending change notifies.
1176 */
1177
1178 START_PROFILE(SMBntcancel);
1179 srv_cancel_sign_response(smbd_server_conn);
1180 remove_pending_change_notify_requests_by_mid(req->mid);
1181 remove_pending_lock_requests_by_mid(req->mid);
1182
1183 DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", req->mid));
1184
1185 END_PROFILE(SMBntcancel);
1186 return;
1187 }
1188
1189 /****************************************************************************
1190 Copy a file.
1191 ****************************************************************************/
1192
1193 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1194 connection_struct *conn,
1195 struct smb_request *req,
1196 struct smb_filename *smb_fname_src,
1197 struct smb_filename *smb_fname_dst,
1198 uint32 attrs)
1199 {
1200 files_struct *fsp1,*fsp2;
1201 uint32 fattr;
1202 int info;
1203 SMB_OFF_T ret=-1;
1204 NTSTATUS status = NT_STATUS_OK;
1205 char *parent;
1206
1207 if (!CAN_WRITE(conn)) {
1208 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1209 goto out;
1210 }
1211
1212 /* Source must already exist. */
1213 if (!VALID_STAT(smb_fname_src->st)) {
1214 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1215 goto out;
1216 }
1217
1218 /* Ensure attributes match. */
1219 fattr = dos_mode(conn, smb_fname_src);
1220 if ((fattr & ~attrs) & (aHIDDEN | aSYSTEM)) {
1221 status = NT_STATUS_NO_SUCH_FILE;
1222 goto out;
1223 }
1224
1225 /* Disallow if dst file already exists. */
1226 if (VALID_STAT(smb_fname_dst->st)) {
1227 status = NT_STATUS_OBJECT_NAME_COLLISION;
1228 goto out;
1229 }
1230
1231 /* No links from a directory. */
1232 if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1233 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1234 goto out;
1235 }
1236
1237 DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1238 smb_fname_str_dbg(smb_fname_src),
1239 smb_fname_str_dbg(smb_fname_dst)));
1240
1241 status = SMB_VFS_CREATE_FILE(
1242 conn, /* conn */
1243 req, /* req */
1244 0, /* root_dir_fid */
1245 smb_fname_src, /* fname */
1246 FILE_READ_DATA, /* access_mask */
1247 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1248 FILE_SHARE_DELETE),
1249 FILE_OPEN, /* create_disposition*/
1250 0, /* create_options */
1251 FILE_ATTRIBUTE_NORMAL, /* file_attributes */
1252 NO_OPLOCK, /* oplock_request */
1253 0, /* allocation_size */
1254 NULL, /* sd */
1255 NULL, /* ea_list */
1256 &fsp1, /* result */
1257 &info); /* pinfo */
1258
1259 if (!NT_STATUS_IS_OK(status)) {
1260 goto out;
1261 }
1262
1263 status = SMB_VFS_CREATE_FILE(
1264 conn, /* conn */
1265 req, /* req */
1266 0, /* root_dir_fid */
1267 smb_fname_dst, /* fname */
1268 FILE_WRITE_DATA, /* access_mask */
1269 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1270 FILE_SHARE_DELETE),
1271 FILE_CREATE, /* create_disposition*/
1272 0, /* create_options */
1273 fattr, /* file_attributes */
1274 NO_OPLOCK, /* oplock_request */
1275 0, /* allocation_size */
1276 NULL, /* sd */
1277 NULL, /* ea_list */
1278 &fsp2, /* result */
1279 &info); /* pinfo */
1280
1281 if (!NT_STATUS_IS_OK(status)) {
1282 close_file(NULL, fsp1, ERROR_CLOSE);
1283 goto out;
1284 }
1285
1286 if (smb_fname_src->st.st_ex_size) {
1287 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1288 }
1289
1290 /*
1291 * As we are opening fsp1 read-only we only expect
1292 * an error on close on fsp2 if we are out of space.
1293 * Thus we don't look at the error return from the
1294 * close of fsp1.
1295 */
1296 close_file(NULL, fsp1, NORMAL_CLOSE);
1297
1298 /* Ensure the modtime is set correctly on the destination file. */
1299 set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1300
1301 status = close_file(NULL, fsp2, NORMAL_CLOSE);
1302
1303 /* Grrr. We have to do this as open_file_ntcreate adds aARCH when it
1304 creates the file. This isn't the correct thing to do in the copy
1305 case. JRA */
1306 if (!parent_dirname(talloc_tos(), smb_fname_dst->base_name, &parent,
1307 NULL)) {
1308 status = NT_STATUS_NO_MEMORY;
1309 goto out;
1310 }
1311 file_set_dosmode(conn, smb_fname_dst, fattr, parent, false);
1312 TALLOC_FREE(parent);
1313
1314 if (ret < (SMB_OFF_T)smb_fname_src->st.st_ex_size) {
1315 status = NT_STATUS_DISK_FULL;
1316 goto out;
1317 }
1318 out:
1319 if (!NT_STATUS_IS_OK(status)) {
1320 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1321 nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1322 smb_fname_str_dbg(smb_fname_dst)));
1323 }
1324
1325 return status;
1326 }
1327
1328 /****************************************************************************
1329 Reply to a NT rename request.
1330 ****************************************************************************/
1331
1332 void reply_ntrename(struct smb_request *req)
1333 {
1334 connection_struct *conn = req->conn;
1335 struct smb_filename *smb_fname_old = NULL;
1336 struct smb_filename *smb_fname_new = NULL;
1337 char *oldname = NULL;
1338 char *newname = NULL;
1339 const char *p;
1340 NTSTATUS status;
1341 bool src_has_wcard = False;
1342 bool dest_has_wcard = False;
1343 uint32 attrs;
1344 uint32_t ucf_flags_src = 0;
1345 uint32_t ucf_flags_dst = 0;
1346 uint16 rename_type;
1347 TALLOC_CTX *ctx = talloc_tos();
1348
1349 START_PROFILE(SMBntrename);
1350
1351 if (req->wct < 4) {
1352 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1353 goto out;
1354 }
1355
1356 attrs = SVAL(req->vwv+0, 0);
1357 rename_type = SVAL(req->vwv+1, 0);
1358
1359 p = (const char *)req->buf + 1;
1360 p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1361 &status, &src_has_wcard);
1362 if (!NT_STATUS_IS_OK(status)) {
1363 reply_nterror(req, status);
1364 goto out;
1365 }
1366
1367 if (ms_has_wild(oldname)) {
1368 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1369 goto out;
1370 }
1371
1372 p++;
1373 p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1374 &status, &dest_has_wcard);
1375 if (!NT_STATUS_IS_OK(status)) {
1376 reply_nterror(req, status);
1377 goto out;
1378 }
1379
1380 /* The newname must begin with a ':' if the oldname contains a ':'. */
1381 if (strchr_m(oldname, ':') && (newname[0] != ':')) {
1382 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1383 goto out;
1384 }
1385
1386 /*
1387 * If this is a rename operation, allow wildcards and save the
1388 * destination's last component.
1389 */
1390 if (rename_type == RENAME_FLAG_RENAME) {
1391 ucf_flags_src = UCF_COND_ALLOW_WCARD_LCOMP;
1392 ucf_flags_dst = UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1393 }
1394
1395 /* rename_internals() calls unix_convert(), so don't call it here. */
1396 status = filename_convert(ctx, conn,
1397 req->flags2 & FLAGS2_DFS_PATHNAMES,
1398 oldname,
1399 ucf_flags_src,
1400 NULL,
1401 &smb_fname_old);
1402 if (!NT_STATUS_IS_OK(status)) {
1403 if (NT_STATUS_EQUAL(status,
1404 NT_STATUS_PATH_NOT_COVERED)) {
1405 reply_botherror(req,
1406 NT_STATUS_PATH_NOT_COVERED,
1407 ERRSRV, ERRbadpath);
1408 goto out;
1409 }
1410 reply_nterror(req, status);
1411 goto out;
1412 }
1413
1414 status = filename_convert(ctx, conn,
1415 req->flags2 & FLAGS2_DFS_PATHNAMES,
1416 newname,
1417 ucf_flags_dst,
1418 &dest_has_wcard,
1419 &smb_fname_new);
1420 if (!NT_STATUS_IS_OK(status)) {
1421 if (NT_STATUS_EQUAL(status,
1422 NT_STATUS_PATH_NOT_COVERED)) {
1423 reply_botherror(req,
1424 NT_STATUS_PATH_NOT_COVERED,
1425 ERRSRV, ERRbadpath);
1426 goto out;
1427 }
1428 reply_nterror(req, status);
1429 goto out;
1430 }
1431
1432 DEBUG(3,("reply_ntrename: %s -> %s\n",
1433 smb_fname_str_dbg(smb_fname_old),
1434 smb_fname_str_dbg(smb_fname_new)));
1435
1436 switch(rename_type) {
1437 case RENAME_FLAG_RENAME:
1438 status = rename_internals(ctx, conn, req,
1439 smb_fname_old, smb_fname_new,
1440 attrs, False, src_has_wcard,
1441 dest_has_wcard,
1442 DELETE_ACCESS);
1443 break;
1444 case RENAME_FLAG_HARD_LINK:
1445 if (src_has_wcard || dest_has_wcard) {
1446 /* No wildcards. */
1447 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1448 } else {
1449 status = hardlink_internals(ctx, conn,
1450 smb_fname_old,
1451 smb_fname_new);
1452 }
1453 break;
1454 case RENAME_FLAG_COPY:
1455 if (src_has_wcard || dest_has_wcard) {
1456 /* No wildcards. */
1457 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1458 } else {
1459 status = copy_internals(ctx, conn, req,
1460 smb_fname_old,
1461 smb_fname_new,
1462 attrs);
1463 }
1464 break;
1465 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1466 status = NT_STATUS_INVALID_PARAMETER;
1467 break;
1468 default:
1469 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1470 break;
1471 }
1472
1473 if (!NT_STATUS_IS_OK(status)) {
1474 if (open_was_deferred(req->mid)) {
1475 /* We have re-scheduled this call. */
1476 goto out;
1477 }
1478
1479 reply_nterror(req, status);
1480 goto out;
1481 }
1482
1483 reply_outbuf(req, 0, 0);
1484 out:
1485 END_PROFILE(SMBntrename);
1486 return;
1487 }
1488
1489 /****************************************************************************
1490 Reply to a notify change - queue the request and
1491 don't allow a directory to be opened.
1492 ****************************************************************************/
1493
1494 static void smbd_smb1_notify_reply(struct smb_request *req,
1495 NTSTATUS error_code,
1496 uint8_t *buf, size_t len)
1497 {
1498 send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1499 }
1500
1501 static void call_nt_transact_notify_change(connection_struct *conn,
1502 struct smb_request *req,
1503 uint16 **ppsetup,
1504 uint32 setup_count,
1505 char **ppparams,
1506 uint32 parameter_count,
1507 char **ppdata, uint32 data_count,
1508 uint32 max_data_count,
1509 uint32 max_param_count)
1510 {
1511 uint16 *setup = *ppsetup;
1512 files_struct *fsp;
1513 uint32 filter;
1514 NTSTATUS status;
1515 bool recursive;
1516
1517 if(setup_count < 6) {
1518 reply_doserror(req, ERRDOS, ERRbadfunc);
1519 return;
1520 }
1521
1522 fsp = file_fsp(req, SVAL(setup,4));
1523 filter = IVAL(setup, 0);
1524 recursive = (SVAL(setup, 6) != 0) ? True : False;
1525
1526 DEBUG(3,("call_nt_transact_notify_change\n"));
1527
1528 if(!fsp) {
1529 reply_doserror(req, ERRDOS, ERRbadfid);
1530 return;
1531 }
1532
1533 {
1534 char *filter_string;
1535
1536 if (!(filter_string = notify_filter_string(NULL, filter))) {
1537 reply_nterror(req,NT_STATUS_NO_MEMORY);
1538 return;
1539 }
1540
1541 DEBUG(3,("call_nt_transact_notify_change: notify change "
1542 "called on %s, filter = %s, recursive = %d\n",
1543 fsp_str_dbg(fsp), filter_string, recursive));
1544
1545 TALLOC_FREE(filter_string);
1546 }
1547
1548 if((!fsp->is_directory) || (conn != fsp->conn)) {
1549 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1550 return;
1551 }
1552
1553 if (fsp->notify == NULL) {
1554
1555 status = change_notify_create(fsp, filter, recursive);
1556
1557 if (!NT_STATUS_IS_OK(status)) {
1558 DEBUG(10, ("change_notify_create returned %s\n",
1559 nt_errstr(status)));
1560 reply_nterror(req, status);
1561 return;
1562 }
1563 }
1564
1565 if (fsp->notify->num_changes != 0) {
1566
1567 /*
1568 * We've got changes pending, respond immediately
1569 */
1570
1571 /*
1572 * TODO: write a torture test to check the filtering behaviour
1573 * here.
1574 */
1575
1576 change_notify_reply(fsp->conn, req,
1577 NT_STATUS_OK,
1578 max_param_count,
1579 fsp->notify,
1580 smbd_smb1_notify_reply);
1581
1582 /*
1583 * change_notify_reply() above has independently sent its
1584 * results
1585 */
1586 return;
1587 }
1588
1589 /*
1590 * No changes pending, queue the request
1591 */
1592
1593 status = change_notify_add_request(req,
1594 max_param_count,
1595 filter,
1596 recursive, fsp,
1597 smbd_smb1_notify_reply);
1598 if (!NT_STATUS_IS_OK(status)) {
1599 reply_nterror(req, status);
1600 }
1601 return;
1602 }
1603
1604 /****************************************************************************
1605 Reply to an NT transact rename command.
1606 ****************************************************************************/
1607
1608 static void call_nt_transact_rename(connection_struct *conn,
1609 struct smb_request *req,
1610 uint16 **ppsetup, uint32 setup_count,
1611 char **ppparams, uint32 parameter_count,
1612 char **ppdata, uint32 data_count,
1613 uint32 max_data_count)
1614 {
1615 char *params = *ppparams;
1616 char *new_name = NULL;
1617 files_struct *fsp = NULL;
1618 bool dest_has_wcard = False;
1619 NTSTATUS status;
1620 TALLOC_CTX *ctx = talloc_tos();
1621
1622 if(parameter_count < 5) {
1623 reply_doserror(req, ERRDOS, ERRbadfunc);
1624 return;
1625 }
1626
1627 fsp = file_fsp(req, SVAL(params, 0));
1628 if (!check_fsp(conn, req, fsp)) {
1629 return;
1630 }
1631 srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1632 parameter_count - 4,
1633 STR_TERMINATE, &status, &dest_has_wcard);
1634 if (!NT_STATUS_IS_OK(status)) {
1635 reply_nterror(req, status);
1636 return;
1637 }
1638
1639 /*
1640 * W2K3 ignores this request as the RAW-RENAME test
1641 * demonstrates, so we do.
1642 */
1643 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1644
1645 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1646 fsp_str_dbg(fsp), new_name));
1647
1648 return;
1649 }
1650
1651 /******************************************************************************
1652 Fake up a completely empty SD.
1653 *******************************************************************************/
1654
1655 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
1656 {
1657 size_t sd_size;
1658
1659 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1660 if(!*ppsd) {
1661 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1662 return NT_STATUS_NO_MEMORY;
1663 }
1664
1665 return NT_STATUS_OK;
1666 }
1667
1668 /****************************************************************************
1669 Reply to query a security descriptor.
1670 ****************************************************************************/
1671
1672 static void call_nt_transact_query_security_desc(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,
1679 uint32 data_count,
1680 uint32 max_data_count)
1681 {
1682 char *params = *ppparams;
1683 char *data = *ppdata;
1684 SEC_DESC *psd = NULL;
1685 size_t sd_size;
1686 uint32 security_info_wanted;
1687 files_struct *fsp = NULL;
1688 NTSTATUS status;
1689 DATA_BLOB blob;
1690
1691 if(parameter_count < 8) {
1692 reply_doserror(req, ERRDOS, ERRbadfunc);
1693 return;
1694 }
1695
1696 fsp = file_fsp(req, SVAL(params,0));
1697 if(!fsp) {
1698 reply_doserror(req, ERRDOS, ERRbadfid);
1699 return;
1700 }
1701
1702 security_info_wanted = IVAL(params,4);
1703
1704 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
1705 "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
1706 (unsigned int)security_info_wanted));
1707
1708 params = nttrans_realloc(ppparams, 4);
1709 if(params == NULL) {
1710 reply_doserror(req, ERRDOS, ERRnomem);
1711 return;
1712 }
1713
1714 /*
1715 * Get the permissions to return.
1716 */
1717
1718 if (!lp_nt_acl_support(SNUM(conn))) {
1719 status = get_null_nt_acl(talloc_tos(), &psd);
1720 } else {
1721 status = SMB_VFS_FGET_NT_ACL(
1722 fsp, security_info_wanted, &psd);
1723 }
1724 if (!NT_STATUS_IS_OK(status)) {
1725 reply_nterror(req, status);
1726 return;
1727 }
1728
1729 /* If the SACL/DACL is NULL, but was requested, we mark that it is
1730 * present in the reply to match Windows behavior */
1731 if (psd->sacl == NULL &&
1732 security_info_wanted & SACL_SECURITY_INFORMATION)
1733 psd->type |= SEC_DESC_SACL_PRESENT;
1734 if (psd->dacl == NULL &&
1735 security_info_wanted & DACL_SECURITY_INFORMATION)
1736 psd->type |= SEC_DESC_DACL_PRESENT;
1737
1738 sd_size = ndr_size_security_descriptor(psd, NULL, 0);
1739
1740 DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %lu.\n",(unsigned long)sd_size));
1741
1742 if (DEBUGLEVEL >= 10) {
1743 DEBUG(10,("call_nt_transact_query_security_desc for file %s\n",
1744 fsp_str_dbg(fsp)));
1745 NDR_PRINT_DEBUG(security_descriptor, psd);
1746 }
1747
1748 SIVAL(params,0,(uint32)sd_size);
1749
1750 if (max_data_count < sd_size) {
1751 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1752 params, 4, *ppdata, 0);
1753 return;
1754 }
1755
1756 /*
1757 * Allocate the data we will point this at.
1758 */
1759
1760 data = nttrans_realloc(ppdata, sd_size);
1761 if(data == NULL) {
1762 reply_doserror(req, ERRDOS, ERRnomem);
1763 return;
1764 }
1765
1766 status = marshall_sec_desc(talloc_tos(), psd,
1767 &blob.data, &blob.length);
1768
1769 if (!NT_STATUS_IS_OK(status)) {
1770 reply_nterror(req, status);
1771 return;
1772 }
1773
1774 SMB_ASSERT(sd_size == blob.length);
1775 memcpy(data, blob.data, sd_size);
1776
1777 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
1778
1779 return;
1780 }
1781
1782 /****************************************************************************
1783 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
1784 ****************************************************************************/
1785
1786 static void call_nt_transact_set_security_desc(connection_struct *conn,
1787 struct smb_request *req,
1788 uint16 **ppsetup,
1789 uint32 setup_count,
1790 char **ppparams,
1791 uint32 parameter_count,
1792 char **ppdata,
1793 uint32 data_count,
1794 uint32 max_data_count)
1795 {
1796 char *params= *ppparams;
1797 char *data = *ppdata;
1798 files_struct *fsp = NULL;
1799 uint32 security_info_sent = 0;
1800 NTSTATUS status;
1801
1802 if(parameter_count < 8) {
1803 reply_doserror(req, ERRDOS, ERRbadfunc);
1804 return;
1805 }
1806
1807 if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
1808 reply_doserror(req, ERRDOS, ERRbadfid);
1809 return;
1810 }
1811
1812 if(!lp_nt_acl_support(SNUM(conn))) {
1813 goto done;
1814 }
1815
1816 security_info_sent = IVAL(params,4);
1817
1818 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
1819 fsp_str_dbg(fsp), (unsigned int)security_info_sent));
1820
1821 if (data_count == 0) {
1822 reply_doserror(req, ERRDOS, ERRnoaccess);
1823 return;
1824 }
1825
1826 status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
1827
1828 if (!NT_STATUS_IS_OK(status)) {
1829 reply_nterror(req, status);
1830 return;
1831 }
1832
1833 done:
1834 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1835 return;
1836 }
1837
1838 /****************************************************************************
1839 Reply to NT IOCTL
1840 ****************************************************************************/
1841
1842 static void call_nt_transact_ioctl(connection_struct *conn,
1843 struct smb_request *req,
1844 uint16 **ppsetup, uint32 setup_count,
1845 char **ppparams, uint32 parameter_count,
1846 char **ppdata, uint32 data_count,
1847 uint32 max_data_count)
1848 {
1849 uint32 function;
1850 uint16 fidnum;
1851 files_struct *fsp;
1852 uint8 isFSctl;
1853 uint8 compfilter;
1854 char *pdata = *ppdata;
1855
1856 if (setup_count != 8) {
1857 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
1858 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1859 return;
1860 }
1861
1862 function = IVAL(*ppsetup, 0);
1863 fidnum = SVAL(*ppsetup, 4);
1864 isFSctl = CVAL(*ppsetup, 6);
1865 compfilter = CVAL(*ppsetup, 7);
1866
1867 DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
1868 function, fidnum, isFSctl, compfilter));
1869
1870 fsp=file_fsp(req, fidnum);
1871 /* this check is done in each implemented function case for now
1872 because I don't want to break anything... --metze
1873 FSP_BELONGS_CONN(fsp,conn);*/
1874
1875 SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
1876
1877 switch (function) {
1878 case FSCTL_SET_SPARSE:
1879 /* pretend this succeeded - tho strictly we should
1880 mark the file sparse (if the local fs supports it)
1881 so we can know if we need to pre-allocate or not */
1882
1883 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum));
1884 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1885 return;
1886
1887 case FSCTL_CREATE_OR_GET_OBJECT_ID:
1888 {
1889 unsigned char objid[16];
1890
1891 /* This should return the object-id on this file.
1892 * I think I'll make this be the inode+dev. JRA.
1893 */
1894
1895 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
1896
1897 if (!fsp_belongs_conn(conn, req, fsp)) {
1898 return;
1899 }
1900
1901 data_count = 64;
1902 pdata = nttrans_realloc(ppdata, data_count);
1903 if (pdata == NULL) {
1904 reply_nterror(req, NT_STATUS_NO_MEMORY);
1905 return;
1906 }
1907
1908 /* For backwards compatibility only store the dev/inode. */
1909 push_file_id_16(pdata, &fsp->file_id);
1910 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
1911 push_file_id_16(pdata+32, &fsp->file_id);
1912 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
1913 pdata, data_count);
1914 return;
1915 }
1916
1917 case FSCTL_GET_REPARSE_POINT:
1918 /* pretend this fail - my winXP does it like this
1919 * --metze
1920 */
1921
1922 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1923 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1924 return;
1925
1926 case FSCTL_SET_REPARSE_POINT:
1927 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
1928 * --metze
1929 */
1930
1931 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1932 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1933 return;
1934
1935 case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
1936 {
1937 /*
1938 * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
1939 * and return their volume names. If max_data_count is 16, then it is just
1940 * asking for the number of volumes and length of the combined names.
1941 *
1942 * pdata is the data allocated by our caller, but that uses
1943 * total_data_count (which is 0 in our case) rather than max_data_count.
1944 * Allocate the correct amount and return the pointer to let
1945 * it be deallocated when we return.
1946 */
1947 SHADOW_COPY_DATA *shadow_data = NULL;
1948 TALLOC_CTX *shadow_mem_ctx = NULL;
1949 bool labels = False;
1950 uint32 labels_data_count = 0;
1951 uint32 i;
1952 char *cur_pdata;
1953
1954 if (!fsp_belongs_conn(conn, req, fsp)) {
1955 return;
1956 }
1957
1958 if (max_data_count < 16) {
1959 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
1960 max_data_count));
1961 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1962 return;
1963 }
1964
1965 if (max_data_count > 16) {
1966 labels = True;
1967 }
1968
1969 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
1970 if (shadow_mem_ctx == NULL) {
1971 DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
1972 reply_nterror(req, NT_STATUS_NO_MEMORY);
1973 return;
1974 }
1975
1976 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
1977 if (shadow_data == NULL) {
1978 DEBUG(0,("TALLOC_ZERO() failed!\n"));
1979 talloc_destroy(shadow_mem_ctx);
1980 reply_nterror(req, NT_STATUS_NO_MEMORY);
1981 return;
1982 }
1983
1984 shadow_data->mem_ctx = shadow_mem_ctx;
1985
1986 /*
1987 * Call the VFS routine to actually do the work.
1988 */
1989 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
1990 talloc_destroy(shadow_data->mem_ctx);
1991 if (errno == ENOSYS) {
1992 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
1993 conn->connectpath));
1994 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1995 return;
1996 } else {
1997 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
1998 conn->connectpath));
1999 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
2000 return;
2001 }
2002 }
2003
2004 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
2005
2006 if (!labels) {
2007 data_count = 16;
2008 } else {
2009 data_count = 12+labels_data_count+4;
2010 }
2011
2012 if (max_data_count<data_count) {
2013 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
2014 max_data_count,data_count));
2015 talloc_destroy(shadow_data->mem_ctx);
2016 reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
2017 return;
2018 }
2019
2020 pdata = nttrans_realloc(ppdata, data_count);
2021 if (pdata == NULL) {
2022 talloc_destroy(shadow_data->mem_ctx);
2023 reply_nterror(req, NT_STATUS_NO_MEMORY);
2024 return;
2025 }
2026
2027 cur_pdata = pdata;
2028
2029 /* num_volumes 4 bytes */
2030 SIVAL(pdata,0,shadow_data->num_volumes);
2031
2032 if (labels) {
2033 /* num_labels 4 bytes */
2034 SIVAL(pdata,4,shadow_data->num_volumes);
2035 }
2036
2037 /* needed_data_count 4 bytes */
2038 SIVAL(pdata, 8, labels_data_count+4);
2039
2040 cur_pdata+=12;
2041
2042 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
2043 shadow_data->num_volumes, fsp_str_dbg(fsp)));
2044 if (labels && shadow_data->labels) {
2045 for (i=0;i<shadow_data->num_volumes;i++) {
2046 srvstr_push(pdata, req->flags2,
2047 cur_pdata, shadow_data->labels[i],
2048 2*sizeof(SHADOW_COPY_LABEL),
2049 STR_UNICODE|STR_TERMINATE);
2050 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
2051 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
2052 }
2053 }
2054
2055 talloc_destroy(shadow_data->mem_ctx);
2056
2057 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2058 pdata, data_count);
2059
2060 return;
2061 }
2062
2063 case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
2064 {
2065 /* pretend this succeeded -
2066 *
2067 * we have to send back a list with all files owned by this SID
2068 *
2069 * but I have to check that --metze
2070 */
2071 DOM_SID sid;
2072 uid_t uid;
2073 size_t sid_len = MIN(data_count-4,SID_MAX_SIZE);
2074
2075 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
2076
2077 if (!fsp_belongs_conn(conn, req, fsp)) {
2078 return;
2079 }
2080
2081 /* unknown 4 bytes: this is not the length of the sid :-( */
2082 /*unknown = IVAL(pdata,0);*/
2083
2084 sid_parse(pdata+4,sid_len,&sid);
2085 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
2086
2087 if (!sid_to_uid(&sid, &uid)) {
2088 DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
2089 sid_string_dbg(&sid),
2090 (unsigned long)sid_len));
2091 uid = (-1);
2092 }
2093
2094 /* we can take a look at the find source :-)
2095 *
2096 * find ./ -uid $uid -name '*' is what we need here
2097 *
2098 *
2099 * and send 4bytes len and then NULL terminated unicode strings
2100 * for each file
2101 *
2102 * but I don't know how to deal with the paged results
2103 * (maybe we can hang the result anywhere in the fsp struct)
2104 *
2105 * we don't send all files at once
2106 * and at the next we should *not* start from the beginning,
2107 * so we have to cache the result
2108 *
2109 * --metze
2110 */
2111
2112 /* this works for now... */
2113 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2114 return;
2115 }
2116 default:
2117 if (!logged_ioctl_message) {
2118 logged_ioctl_message = true; /* Only print this once... */
2119 DEBUG(0,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n",
2120 function));
2121 }
2122 }
2123
2124 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2125 }
2126
2127
2128 #ifdef HAVE_SYS_QUOTAS
2129 /****************************************************************************
2130 Reply to get user quota
2131 ****************************************************************************/
2132
2133 static void call_nt_transact_get_user_quota(connection_struct *conn,
2134 struct smb_request *req,
2135 uint16 **ppsetup,
2136 uint32 setup_count,
2137 char **ppparams,
2138 uint32 parameter_count,
2139 char **ppdata,
2140 uint32 data_count,
2141 uint32 max_data_count)
2142 {
2143 NTSTATUS nt_status = NT_STATUS_OK;
2144 char *params = *ppparams;
2145 char *pdata = *ppdata;
2146 char *entry;
2147 int data_len=0,param_len=0;
2148 int qt_len=0;
2149 int entry_len = 0;
2150 files_struct *fsp = NULL;
2151 uint16 level = 0;
2152 size_t sid_len;
2153 DOM_SID sid;
2154 bool start_enum = True;
2155 SMB_NTQUOTA_STRUCT qt;
2156 SMB_NTQUOTA_LIST *tmp_list;
2157 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2158
2159 ZERO_STRUCT(qt);
2160
2161 /* access check */
2162 if (conn->server_info->utok.uid != 0) {
2163 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2164 "[%s]\n", lp_servicename(SNUM(conn)),
2165 conn->server_info->unix_name));
2166 reply_doserror(req, ERRDOS, ERRnoaccess);
2167 return;
2168 }
2169
2170 /*
2171 * Ensure minimum number of parameters sent.
2172 */
2173
2174 if (parameter_count < 4) {
2175 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2176 reply_doserror(req, ERRDOS, ERRinvalidparam);
2177 return;
2178 }
2179
2180 /* maybe we can check the quota_fnum */
2181 fsp = file_fsp(req, SVAL(params,0));
2182 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2183 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2184 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2185 return;
2186 }
2187
2188 /* the NULL pointer checking for fsp->fake_file_handle->pd
2189 * is done by CHECK_NTQUOTA_HANDLE_OK()
2190 */
2191 qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2192
2193 level = SVAL(params,2);
2194
2195 /* unknown 12 bytes leading in params */
2196
2197 switch (level) {
2198 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2199 /* seems that we should continue with the enum here --metze */
2200
2201 if (qt_handle->quota_list!=NULL &&
2202 qt_handle->tmp_list==NULL) {
2203
2204 /* free the list */
2205 free_ntquota_list(&(qt_handle->quota_list));
2206
2207 /* Realloc the size of parameters and data we will return */
2208 param_len = 4;
2209 params = nttrans_realloc(ppparams, param_len);
2210 if(params == NULL) {
2211 reply_doserror(req, ERRDOS, ERRnomem);
2212 return;
2213 }
2214
2215 data_len = 0;
2216 SIVAL(params,0,data_len);
2217
2218 break;
2219 }
2220
2221 start_enum = False;
2222
2223 case TRANSACT_GET_USER_QUOTA_LIST_START:
2224
2225 if (qt_handle->quota_list==NULL &&
2226 qt_handle->tmp_list==NULL) {
2227 start_enum = True;
2228 }
2229
2230 if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2231 reply_doserror(req, ERRSRV, ERRerror);
2232 return;
2233 }
2234
2235 /* Realloc the size of parameters and data we will return */
2236 param_len = 4;
2237 params = nttrans_realloc(ppparams, param_len);
2238 if(params == NULL) {
2239 reply_doserror(req, ERRDOS, ERRnomem);
2240 return;
2241 }
2242
2243 /* we should not trust the value in max_data_count*/
2244 max_data_count = MIN(max_data_count,2048);
2245
2246 pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2247 if(pdata == NULL) {
2248 reply_doserror(req, ERRDOS, ERRnomem);
2249 return;
2250 }
2251
2252 entry = pdata;
2253
2254 /* set params Size of returned Quota Data 4 bytes*/
2255 /* but set it later when we know it */
2256
2257 /* for each entry push the data */
2258
2259 if (start_enum) {
2260 qt_handle->tmp_list = qt_handle->quota_list;
2261 }
2262
2263 tmp_list = qt_handle->tmp_list;
2264
2265 for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2266 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2267
2268 sid_len = ndr_size_dom_sid(
2269 &tmp_list->quotas->sid, NULL, 0);
2270 entry_len = 40 + sid_len;
2271
2272 /* nextoffset entry 4 bytes */
2273 SIVAL(entry,0,entry_len);
2274
2275 /* then the len of the SID 4 bytes */
2276 SIVAL(entry,4,sid_len);
2277
2278 /* unknown data 8 bytes uint64_t */
2279 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2280
2281 /* the used disk space 8 bytes uint64_t */
2282 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2283
2284 /* the soft quotas 8 bytes uint64_t */
2285 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2286
2287 /* the hard quotas 8 bytes uint64_t */
2288 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2289
2290 /* and now the SID */
2291 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2292 }
2293
2294 qt_handle->tmp_list = tmp_list;
2295
2296 /* overwrite the offset of the last entry */
2297 SIVAL(entry-entry_len,0,0);
2298
2299 data_len = 4+qt_len;
2300 /* overwrite the params quota_data_len */
2301 SIVAL(params,0,data_len);
2302
2303 break;
2304
2305 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2306
2307 /* unknown 4 bytes IVAL(pdata,0) */
2308
2309 if (data_count < 8) {
2310 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2311 reply_doserror(req, ERRDOS, ERRunknownlevel);
2312 return;
2313 }
2314
2315 sid_len = IVAL(pdata,4);
2316 /* Ensure this is less than 1mb. */
2317 if (sid_len > (1024*1024)) {
2318 reply_doserror(req, ERRDOS, ERRnomem);
2319 return;
2320 }
2321
2322 if (data_count < 8+sid_len) {
2323 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2324 reply_doserror(req, ERRDOS, ERRunknownlevel);
2325 return;
2326 }
2327
2328 data_len = 4+40+sid_len;
2329
2330 if (max_data_count < data_len) {
2331 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2332 max_data_count, data_len));
2333 param_len = 4;
2334 SIVAL(params,0,data_len);
2335 data_len = 0;
2336 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2337 break;
2338 }
2339
2340 sid_parse(pdata+8,sid_len,&sid);
2341
2342 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2343 ZERO_STRUCT(qt);
2344 /*
2345 * we have to return zero's in all fields
2346 * instead of returning an error here
2347 * --metze
2348 */
2349 }
2350
2351 /* Realloc the size of parameters and data we will return */
2352 param_len = 4;
2353 params = nttrans_realloc(ppparams, param_len);
2354 if(params == NULL) {
2355 reply_doserror(req, ERRDOS, ERRnomem);
2356 return;
2357 }
2358
2359 pdata = nttrans_realloc(ppdata, data_len);
2360 if(pdata == NULL) {
2361 reply_doserror(req, ERRDOS, ERRnomem);
2362 return;
2363 }
2364
2365 entry = pdata;
2366
2367 /* set params Size of returned Quota Data 4 bytes*/
2368 SIVAL(params,0,data_len);
2369
2370 /* nextoffset entry 4 bytes */
2371 SIVAL(entry,0,0);
2372
2373 /* then the len of the SID 4 bytes */
2374 SIVAL(entry,4,sid_len);
2375
2376 /* unknown data 8 bytes uint64_t */
2377 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2378
2379 /* the used disk space 8 bytes uint64_t */
2380 SBIG_UINT(entry,16,qt.usedspace);
2381
2382 /* the soft quotas 8 bytes uint64_t */
2383 SBIG_UINT(entry,24,qt.softlim);
2384
2385 /* the hard quotas 8 bytes uint64_t */
2386 SBIG_UINT(entry,32,qt.hardlim);
2387
2388 /* and now the SID */
2389 sid_linearize(entry+40, sid_len, &sid);
2390
2391 break;
2392
2393 default:
2394 DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2395 reply_doserror(req, ERRSRV, ERRerror);
2396 return;
2397 break;
2398 }
2399
2400 send_nt_replies(conn, req, nt_status, params, param_len,
2401 pdata, data_len);
2402 }
2403
2404 /****************************************************************************
2405 Reply to set user quota
2406 ****************************************************************************/
2407
2408 static void call_nt_transact_set_user_quota(connection_struct *conn,
2409 struct smb_request *req,
2410 uint16 **ppsetup,
2411 uint32 setup_count,
2412 char **ppparams,
2413 uint32 parameter_count,
2414 char **ppdata,
2415 uint32 data_count,
2416 uint32 max_data_count)
2417 {
2418 char *params = *ppparams;
2419 char *pdata = *ppdata;
2420 int data_len=0,param_len=0;
2421 SMB_NTQUOTA_STRUCT qt;
2422 size_t sid_len;
2423 DOM_SID sid;
2424 files_struct *fsp = NULL;
2425
2426 ZERO_STRUCT(qt);
2427
2428 /* access check */
2429 if (conn->server_info->utok.uid != 0) {
2430 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2431 "[%s]\n", lp_servicename(SNUM(conn)),
2432 conn->server_info->unix_name));
2433 reply_doserror(req, ERRDOS, ERRnoaccess);
2434 return;
2435 }
2436
2437 /*
2438 * Ensure minimum number of parameters sent.
2439 */
2440
2441 if (parameter_count < 2) {
2442 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2443 reply_doserror(req, ERRDOS, ERRinvalidparam);
2444 return;
2445 }
2446
2447 /* maybe we can check the quota_fnum */
2448 fsp = file_fsp(req, SVAL(params,0));
2449 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2450 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2451 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2452 return;
2453 }
2454
2455 if (data_count < 40) {
2456 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2457 reply_doserror(req, ERRDOS, ERRunknownlevel);
2458 return;
2459 }
2460
2461 /* offset to next quota record.
2462 * 4 bytes IVAL(pdata,0)
2463 * unused here...
2464 */
2465
2466 /* sid len */
2467 sid_len = IVAL(pdata,4);
2468
2469 if (data_count < 40+sid_len) {
2470 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2471 reply_doserror(req, ERRDOS, ERRunknownlevel);
2472 return;
2473 }
2474
2475 /* unknown 8 bytes in pdata
2476 * maybe its the change time in NTTIME
2477 */
2478
2479 /* the used space 8 bytes (uint64_t)*/
2480 qt.usedspace = (uint64_t)IVAL(pdata,16);
2481 #ifdef LARGE_SMB_OFF_T
2482 qt.usedspace |= (((uint64_t)IVAL(pdata,20)) << 32);
2483 #else /* LARGE_SMB_OFF_T */
2484 if ((IVAL(pdata,20) != 0)&&
2485 ((qt.usedspace != 0xFFFFFFFF)||
2486 (IVAL(pdata,20)!=0xFFFFFFFF))) {
2487 /* more than 32 bits? */
2488 reply_doserror(req, ERRDOS, ERRunknownlevel);
2489 return;
2490 }
2491 #endif /* LARGE_SMB_OFF_T */
2492
2493 /* the soft quotas 8 bytes (uint64_t)*/
2494 qt.softlim = (uint64_t)IVAL(pdata,24);
2495 #ifdef LARGE_SMB_OFF_T
2496 qt.softlim |= (((uint64_t)IVAL(pdata,28)) << 32);
2497 #else /* LARGE_SMB_OFF_T */
2498 if ((IVAL(pdata,28) != 0)&&
2499 ((qt.softlim != 0xFFFFFFFF)||
2500 (IVAL(pdata,28)!=0xFFFFFFFF))) {
2501 /* more than 32 bits? */
2502 reply_doserror(req, ERRDOS, ERRunknownlevel);
2503 return;
2504 }
2505 #endif /* LARGE_SMB_OFF_T */
2506
2507 /* the hard quotas 8 bytes (uint64_t)*/
2508 qt.hardlim = (uint64_t)IVAL(pdata,32);
2509 #ifdef LARGE_SMB_OFF_T
2510 qt.hardlim |= (((uint64_t)IVAL(pdata,36)) << 32);
2511 #else /* LARGE_SMB_OFF_T */
2512 if ((IVAL(pdata,36) != 0)&&
2513 ((qt.hardlim != 0xFFFFFFFF)||
2514 (IVAL(pdata,36)!=0xFFFFFFFF))) {
2515 /* more than 32 bits? */
2516 reply_doserror(req, ERRDOS, ERRunknownlevel);
2517 return;
2518 }
2519 #endif /* LARGE_SMB_OFF_T */
2520
2521 sid_parse(pdata+40,sid_len,&sid);
2522 DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2523
2524 /* 44 unknown bytes left... */
2525
2526 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2527 reply_doserror(req, ERRSRV, ERRerror);
2528 return;
2529 }
2530
2531 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2532 pdata, data_len);
2533 }
2534 #endif /* HAVE_SYS_QUOTAS */
2535
2536 static void handle_nttrans(connection_struct *conn,
2537 struct trans_state *state,
2538 struct smb_request *req)
2539 {
2540 if (get_Protocol() >= PROTOCOL_NT1) {
2541 req->flags2 |= 0x40; /* IS_LONG_NAME */
2542 SSVAL(req->inbuf,smb_flg2,req->flags2);
2543 }
2544
2545
2546 SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2547
2548 /* Now we must call the relevant NT_TRANS function */
2549 switch(state->call) {
2550 case NT_TRANSACT_CREATE:
2551 {
2552 START_PROFILE(NT_transact_create);
2553 call_nt_transact_create(
2554 conn, req,
2555 &state->setup, state->setup_count,
2556 &state->param, state->total_param,
2557 &state->data, state->total_data,
2558 state->max_data_return);
2559 END_PROFILE(NT_transact_create);
2560 break;
2561 }
2562
2563 case NT_TRANSACT_IOCTL:
2564 {
2565 START_PROFILE(NT_transact_ioctl);
2566 call_nt_transact_ioctl(
2567 conn, req,
2568 &state->setup, state->setup_count,
2569 &state->param, state->total_param,
2570 &state->data, state->total_data,
2571 state->max_data_return);
2572 END_PROFILE(NT_transact_ioctl);
2573 break;
2574 }
2575
2576 case NT_TRANSACT_SET_SECURITY_DESC:
2577 {
2578 START_PROFILE(NT_transact_set_security_desc);
2579 call_nt_transact_set_security_desc(
2580 conn, req,
2581 &state->setup, state->setup_count,
2582 &state->param, state->total_param,
2583 &state->data, state->total_data,
2584 state->max_data_return);
2585 END_PROFILE(NT_transact_set_security_desc);
2586 break;
2587 }
2588
2589 case NT_TRANSACT_NOTIFY_CHANGE:
2590 {
2591 START_PROFILE(NT_transact_notify_change);
2592 call_nt_transact_notify_change(
2593 conn, req,
2594 &state->setup, state->setup_count,
2595 &state->param, state->total_param,
2596 &state->data, state->total_data,
2597 state->max_data_return,
2598 state->max_param_return);
2599 END_PROFILE(NT_transact_notify_change);
2600 break;
2601 }
2602
2603 case NT_TRANSACT_RENAME:
2604 {
2605 START_PROFILE(NT_transact_rename);
2606 call_nt_transact_rename(
2607 conn, req,
2608 &state->setup, state->setup_count,
2609 &state->param, state->total_param,
2610 &state->data, state->total_data,
2611 state->max_data_return);
2612 END_PROFILE(NT_transact_rename);
2613 break;
2614 }
2615
2616 case NT_TRANSACT_QUERY_SECURITY_DESC:
2617 {
2618 START_PROFILE(NT_transact_query_security_desc);
2619 call_nt_transact_query_security_desc(
2620 conn, req,
2621 &state->setup, state->setup_count,
2622 &state->param, state->total_param,
2623 &state->data, state->total_data,
2624 state->max_data_return);
2625 END_PROFILE(NT_transact_query_security_desc);
2626 break;
2627 }
2628
2629 #ifdef HAVE_SYS_QUOTAS
2630 case NT_TRANSACT_GET_USER_QUOTA:
2631 {
2632 START_PROFILE(NT_transact_get_user_quota);
2633 call_nt_transact_get_user_quota(
2634 conn, req,
2635 &state->setup, state->setup_count,
2636 &state->param, state->total_param,
2637 &state->data, state->total_data,
2638 state->max_data_return);
2639 END_PROFILE(NT_transact_get_user_quota);
2640 break;
2641 }
2642
2643 case NT_TRANSACT_SET_USER_QUOTA:
2644 {
2645 START_PROFILE(NT_transact_set_user_quota);
2646 call_nt_transact_set_user_quota(
2647 conn, req,
2648 &state->setup, state->setup_count,
2649 &state->param, state->total_param,
2650 &state->data, state->total_data,
2651 state->max_data_return);
2652 END_PROFILE(NT_transact_set_user_quota);
2653 break;
2654 }
2655 #endif /* HAVE_SYS_QUOTAS */
2656
2657 default:
2658 /* Error in request */
2659 DEBUG(0,("handle_nttrans: Unknown request %d in "
2660 "nttrans call\n", state->call));
2661 reply_doserror(req, ERRSRV, ERRerror);
2662 return;
2663 }
2664 return;
2665 }
2666
2667 /****************************************************************************
2668 Reply to a SMBNTtrans.
2669 ****************************************************************************/
2670
2671 void reply_nttrans(struct smb_request *req)
2672 {
2673 connection_struct *conn = req->conn;
2674 uint32_t pscnt;
2675 uint32_t psoff;
2676 uint32_t dscnt;
2677 uint32_t dsoff;
2678 uint16 function_code;
2679 NTSTATUS result;
2680 struct trans_state *state;
2681
2682 START_PROFILE(SMBnttrans);
2683
2684 if (req->wct < 19) {
2685 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2686 END_PROFILE(SMBnttrans);
2687 return;
2688 }
2689
2690 pscnt = IVAL(req->vwv+9, 1);
2691 psoff = IVAL(req->vwv+11, 1);
2692 dscnt = IVAL(req->vwv+13, 1);
2693 dsoff = IVAL(req->vwv+15, 1);
2694 function_code = SVAL(req->vwv+18, 0);
2695
2696 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2697 reply_doserror(req, ERRSRV, ERRaccess);
2698 END_PROFILE(SMBnttrans);
2699 return;
2700 }
2701
2702 result = allow_new_trans(conn->pending_trans, req->mid);
2703 if (!NT_STATUS_IS_OK(result)) {
2704 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2705 reply_nterror(req, result);
2706 END_PROFILE(SMBnttrans);
2707 return;
2708 }
2709
2710 if ((state = TALLOC_P(conn, struct trans_state)) == NULL) {
2711 reply_doserror(req, ERRSRV, ERRaccess);
2712 END_PROFILE(SMBnttrans);
2713 return;
2714 }
2715
2716 state->cmd = SMBnttrans;
2717
2718 state->mid = req->mid;
2719 state->vuid = req->vuid;
2720 state->total_data = IVAL(req->vwv+3, 1);
2721 state->data = NULL;
2722 state->total_param = IVAL(req->vwv+1, 1);
2723 state->param = NULL;
2724 state->max_data_return = IVAL(req->vwv+7, 1);
2725 state->max_param_return = IVAL(req->vwv+5, 1);
2726
2727 /* setup count is in *words* */
2728 state->setup_count = 2*CVAL(req->vwv+17, 1);
2729 state->setup = NULL;
2730 state->call = function_code;
2731
2732 DEBUG(10, ("num_setup=%u, "
2733 "param_total=%u, this_param=%u, max_param=%u, "
2734 "data_total=%u, this_data=%u, max_data=%u, "
2735 "param_offset=%u, data_offset=%u\n",
2736 (unsigned)state->setup_count,
2737 (unsigned)state->total_param, (unsigned)pscnt,
2738 (unsigned)state->max_param_return,
2739 (unsigned)state->total_data, (unsigned)dscnt,
2740 (unsigned)state->max_data_return,
2741 (unsigned)psoff, (unsigned)dsoff));
2742
2743 /*
2744 * All nttrans messages we handle have smb_wct == 19 +
2745 * state->setup_count. Ensure this is so as a sanity check.
2746 */
2747
2748 if(req->wct != 19 + (state->setup_count/2)) {
2749 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2750 req->wct, 19 + (state->setup_count/2)));
2751 goto bad_param;
2752 }
2753
2754 /* Don't allow more than 128mb for each value. */
2755 if ((state->total_data > (1024*1024*128)) ||
2756 (state->total_param > (1024*1024*128))) {
2757 reply_doserror(req, ERRDOS, ERRnomem);
2758 END_PROFILE(SMBnttrans);
2759 return;
2760 }
2761
2762 if ((dscnt > state->total_data) || (pscnt > state->total_param))
2763 goto bad_param;
2764
2765 if (state->total_data) {
2766
2767 if (trans_oob(state->total_data, 0, dscnt)
2768 || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
2769 goto bad_param;
2770 }
2771
2772 /* Can't use talloc here, the core routines do realloc on the
2773 * params and data. */
2774 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2775 DEBUG(0,("reply_nttrans: data malloc fail for %u "
2776 "bytes !\n", (unsigned int)state->total_data));
2777 TALLOC_FREE(state);
2778 reply_doserror(req, ERRDOS, ERRnomem);
2779 END_PROFILE(SMBnttrans);
2780 return;
2781 }
2782
2783 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2784 }
2785
2786 if (state->total_param) {
2787
2788 if (trans_oob(state->total_param, 0, pscnt)
2789 || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
2790 goto bad_param;
2791 }
2792
2793 /* Can't use talloc here, the core routines do realloc on the
2794 * params and data. */
2795 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2796 DEBUG(0,("reply_nttrans: param malloc fail for %u "
2797 "bytes !\n", (unsigned int)state->total_param));
2798 SAFE_FREE(state->data);
2799 TALLOC_FREE(state);
2800 reply_doserror(req, ERRDOS, ERRnomem);
2801 END_PROFILE(SMBnttrans);
2802 return;
2803 }
2804
2805 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2806 }
2807
2808 state->received_data = dscnt;
2809 state->received_param = pscnt;
2810
2811 if(state->setup_count > 0) {
2812 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2813 state->setup_count));
2814
2815 /*
2816 * No overflow possible here, state->setup_count is an
2817 * unsigned int, being filled by a single byte from
2818 * CVAL(req->vwv+13, 0) above. The cast in the comparison
2819 * below is not necessary, it's here to clarify things. The
2820 * validity of req->vwv and req->wct has been checked in
2821 * init_smb_request already.
2822 */
2823 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
2824 goto bad_param;
2825 }
2826
2827 state->setup = (uint16 *)TALLOC(state, state->setup_count);
2828 if (state->setup == NULL) {
2829 DEBUG(0,("reply_nttrans : Out of memory\n"));
2830 SAFE_FREE(state->data);
2831 SAFE_FREE(state->param);
2832 TALLOC_FREE(state);
2833 reply_doserror(req, ERRDOS, ERRnomem);
2834 END_PROFILE(SMBnttrans);
2835 return;
2836 }
2837
2838 memcpy(state->setup, req->vwv+19, state->setup_count);
2839 dump_data(10, (uint8 *)state->setup, state->setup_count);
2840 }
2841
2842 if ((state->received_data == state->total_data) &&
2843 (state->received_param == state->total_param)) {
2844 handle_nttrans(conn, state, req);
2845 SAFE_FREE(state->param);
2846 SAFE_FREE(state->data);
2847 TALLOC_FREE(state);
2848 END_PROFILE(SMBnttrans);
2849 return;
2850 }
2851
2852 DLIST_ADD(conn->pending_trans, state);
2853
2854 /* We need to send an interim response then receive the rest
2855 of the parameter/data bytes */
2856 reply_outbuf(req, 0, 0);
2857 show_msg((char *)req->outbuf);
2858 END_PROFILE(SMBnttrans);
2859 return;
2860
2861 bad_param:
2862
2863 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2864 SAFE_FREE(state->data);
2865 SAFE_FREE(state->param);
2866 TALLOC_FREE(state);
2867 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2868 END_PROFILE(SMBnttrans);
2869 return;
2870 }
2871
2872 /****************************************************************************
2873 Reply to a SMBnttranss
2874 ****************************************************************************/
2875
2876 void reply_nttranss(struct smb_request *req)
2877 {
2878 connection_struct *conn = req->conn;
2879 uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
2880 struct trans_state *state;
2881
2882 START_PROFILE(SMBnttranss);
2883
2884 show_msg((char *)req->inbuf);
2885
2886 if (req->wct < 18) {
2887 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2888 END_PROFILE(SMBnttranss);
2889 return;
2890 }
2891
2892 for (state = conn->pending_trans; state != NULL;
2893 state = state->next) {
2894 if (state->mid == req->mid) {
2895 break;
2896 }
2897 }
2898
2899 if ((state == NULL) || (state->cmd != SMBnttrans)) {
2900 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2901 END_PROFILE(SMBnttranss);
2902 return;
2903 }
2904
2905 /* Revise state->total_param and state->total_data in case they have
2906 changed downwards */
2907 if (IVAL(req->vwv+1, 1) < state->total_param) {
2908 state->total_param = IVAL(req->vwv+1, 1);
2909 }
2910 if (IVAL(req->vwv+3, 1) < state->total_data) {
2911 state->total_data = IVAL(req->vwv+3, 1);
2912 }
2913
2914 pcnt = IVAL(req->vwv+5, 1);
2915 poff = IVAL(req->vwv+7, 1);
2916 pdisp = IVAL(req->vwv+9, 1);
2917
2918 dcnt = IVAL(req->vwv+11, 1);
2919 doff = IVAL(req->vwv+13, 1);
2920 ddisp = IVAL(req->vwv+15, 1);
2921
2922 state->received_param += pcnt;
2923 state->received_data += dcnt;
2924
2925 if ((state->received_data > state->total_data) ||
2926 (state->received_param > state->total_param))
2927 goto bad_param;
2928
2929 if (pcnt) {
2930 if (trans_oob(state->total_param, pdisp, pcnt)
2931 || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
2932 goto bad_param;
2933 }
2934 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
2935 }
2936
2937 if (dcnt) {
2938 if (trans_oob(state->total_data, ddisp, dcnt)
2939 || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
2940 goto bad_param;
2941 }
2942 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
2943 }
2944
2945 if ((state->received_param < state->total_param) ||
2946 (state->received_data < state->total_data)) {
2947 END_PROFILE(SMBnttranss);
2948 return;
2949 }
2950
2951 handle_nttrans(conn, state, req);
2952
2953 DLIST_REMOVE(conn->pending_trans, state);
2954 SAFE_FREE(state->data);
2955 SAFE_FREE(state->param);
2956 TALLOC_FREE(state);
2957 END_PROFILE(SMBnttranss);
2958 return;
2959
2960 bad_param:
2961
2962 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
2963 DLIST_REMOVE(conn->pending_trans, state);
2964 SAFE_FREE(state->data);
2965 SAFE_FREE(state->param);
2966 TALLOC_FREE(state);
2967 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2968 END_PROFILE(SMBnttranss);
2969 return;
2970 }
fernandojvsilva's samba4 branch