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s3: shortcut uid_to_sid when "ldapsam:trusted = yes"
[Samba.git] / source3 / smbd / nttrans.c
blobbacb9cb0b2fdaa620ea3fa9f7cb2bd8bffe1f02f
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
558 if (flags & EXTENDED_RESPONSE_REQUIRED) {
559 /* This is very strange. We
560 * return 50 words, but only set
561 * the wcnt to 42 ? It's definately
562 * what happens on the wire....
563 */
564 reply_outbuf(req, 50, 0);
565 SCVAL(req->outbuf,smb_wct,42);
566 } else {
567 reply_outbuf(req, 34, 0);
568 }
569
570 p = (char *)req->outbuf + smb_vwv2;
571
572 SCVAL(p, 0, oplock_granted);
573
574 p++;
575 SSVAL(p,0,fsp->fnum);
576 p += 2;
577 if ((create_disposition == FILE_SUPERSEDE)
578 && (info == FILE_WAS_OVERWRITTEN)) {
579 SIVAL(p,0,FILE_WAS_SUPERSEDED);
580 } else {
581 SIVAL(p,0,info);
582 }
583 p += 4;
584
585 fattr = dos_mode(conn, smb_fname);
586 if (fattr == 0) {
587 fattr = FILE_ATTRIBUTE_NORMAL;
588 }
589
590 /* Deal with other possible opens having a modified
591 write time. JRA. */
592 ZERO_STRUCT(write_time_ts);
593 get_file_infos(fsp->file_id, NULL, &write_time_ts);
594 if (!null_timespec(write_time_ts)) {
595 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
596 }
597
598 /* Create time. */
599 create_timespec = get_create_timespec(conn, fsp, smb_fname);
600 a_timespec = smb_fname->st.st_ex_atime;
601 m_timespec = smb_fname->st.st_ex_mtime;
602 c_timespec = get_change_timespec(conn, fsp, smb_fname);
603
604 if (lp_dos_filetime_resolution(SNUM(conn))) {
605 dos_filetime_timespec(&create_timespec);
606 dos_filetime_timespec(&a_timespec);
607 dos_filetime_timespec(&m_timespec);
608 dos_filetime_timespec(&c_timespec);
609 }
610
611 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
612 p += 8;
613 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
614 p += 8;
615 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
616 p += 8;
617 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
618 p += 8;
619 SIVAL(p,0,fattr); /* File Attributes. */
620 p += 4;
621 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
622 p += 8;
623 SOFF_T(p,0,file_len);
624 p += 8;
625 if (flags & EXTENDED_RESPONSE_REQUIRED) {
626 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
627 size_t num_names = 0;
628 unsigned int num_streams;
629 struct stream_struct *streams = NULL;
630
631 /* Do we have any EA's ? */
632 status = get_ea_names_from_file(ctx, conn, fsp,
633 smb_fname->base_name, NULL, &num_names);
634 if (NT_STATUS_IS_OK(status) && num_names) {
635 file_status &= ~NO_EAS;
636 }
637 status = SMB_VFS_STREAMINFO(conn, NULL, smb_fname->base_name, ctx,
638 &num_streams, &streams);
639 /* There is always one stream, ::$DATA. */
640 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
641 file_status &= ~NO_SUBSTREAMS;
642 }
643 TALLOC_FREE(streams);
644 SSVAL(p,2,file_status);
645 }
646 p += 4;
647 SCVAL(p,0,fsp->is_directory ? 1 : 0);
648
649 if (flags & EXTENDED_RESPONSE_REQUIRED) {
650 uint32 perms = 0;
651 p += 25;
652 if (fsp->is_directory ||
653 can_write_to_file(conn, smb_fname)) {
654 perms = FILE_GENERIC_ALL;
655 } else {
656 perms = FILE_GENERIC_READ|FILE_EXECUTE;
657 }
658 SIVAL(p,0,perms);
659 }
660
661 DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
662 fsp->fnum, smb_fname_str_dbg(smb_fname)));
663
664 chain_reply(req);
665 out:
666 END_PROFILE(SMBntcreateX);
667 return;
668 }
669
670 /****************************************************************************
671 Reply to a NT_TRANSACT_CREATE call to open a pipe.
672 ****************************************************************************/
673
674 static void do_nt_transact_create_pipe(connection_struct *conn,
675 struct smb_request *req,
676 uint16 **ppsetup, uint32 setup_count,
677 char **ppparams, uint32 parameter_count,
678 char **ppdata, uint32 data_count)
679 {
680 char *fname = NULL;
681 char *params = *ppparams;
682 int pnum = -1;
683 char *p = NULL;
684 NTSTATUS status;
685 size_t param_len;
686 uint32 flags;
687 TALLOC_CTX *ctx = talloc_tos();
688
689 /*
690 * Ensure minimum number of parameters sent.
691 */
692
693 if(parameter_count < 54) {
694 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
695 reply_doserror(req, ERRDOS, ERRnoaccess);
696 return;
697 }
698
699 flags = IVAL(params,0);
700
701 srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
702 parameter_count-53, STR_TERMINATE,
703 &status);
704 if (!NT_STATUS_IS_OK(status)) {
705 reply_nterror(req, status);
706 return;
707 }
708
709 nt_open_pipe(fname, conn, req, &pnum);
710
711 if (req->outbuf) {
712 /* Error return */
713 return;
714 }
715
716 /* Realloc the size of parameters and data we will return */
717 if (flags & EXTENDED_RESPONSE_REQUIRED) {
718 /* Extended response is 32 more byyes. */
719 param_len = 101;
720 } else {
721 param_len = 69;
722 }
723 params = nttrans_realloc(ppparams, param_len);
724 if(params == NULL) {
725 reply_doserror(req, ERRDOS, ERRnomem);
726 return;
727 }
728
729 p = params;
730 SCVAL(p,0,NO_OPLOCK_RETURN);
731
732 p += 2;
733 SSVAL(p,0,pnum);
734 p += 2;
735 SIVAL(p,0,FILE_WAS_OPENED);
736 p += 8;
737
738 p += 32;
739 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
740 p += 20;
741 /* File type. */
742 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
743 /* Device state. */
744 SSVAL(p,2, 0x5FF); /* ? */
745 p += 4;
746
747 if (flags & EXTENDED_RESPONSE_REQUIRED) {
748 p += 25;
749 SIVAL(p,0,FILE_GENERIC_ALL);
750 /*
751 * For pipes W2K3 seems to return
752 * 0x12019B next.
753 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
754 */
755 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
756 }
757
758 DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
759
760 /* Send the required number of replies */
761 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
762
763 return;
764 }
765
766 /****************************************************************************
767 Internal fn to set security descriptors.
768 ****************************************************************************/
769
770 static NTSTATUS set_sd(files_struct *fsp, uint8 *data, uint32 sd_len,
771 uint32 security_info_sent)
772 {
773 SEC_DESC *psd = NULL;
774 NTSTATUS status;
775
776 if (sd_len == 0 || !lp_nt_acl_support(SNUM(fsp->conn))) {
777 return NT_STATUS_OK;
778 }
779
780 status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
781
782 if (!NT_STATUS_IS_OK(status)) {
783 return status;
784 }
785
786 if (psd->owner_sid == NULL) {
787 security_info_sent &= ~OWNER_SECURITY_INFORMATION;
788 }
789 if (psd->group_sid == NULL) {
790 security_info_sent &= ~GROUP_SECURITY_INFORMATION;
791 }
792
793 /* Convert all the generic bits. */
794 security_acl_map_generic(psd->dacl, &file_generic_mapping);
795 security_acl_map_generic(psd->sacl, &file_generic_mapping);
796
797 if (DEBUGLEVEL >= 10) {
798 DEBUG(10,("set_sd for file %s\n", fsp_str_dbg(fsp)));
799 NDR_PRINT_DEBUG(security_descriptor, psd);
800 }
801
802 status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
803
804 TALLOC_FREE(psd);
805
806 return status;
807 }
808
809 /****************************************************************************
810 Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
811 ****************************************************************************/
812
813 struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
814 {
815 struct ea_list *ea_list_head = NULL;
816 size_t offset = 0;
817
818 if (data_size < 4) {
819 return NULL;
820 }
821
822 while (offset + 4 <= data_size) {
823 size_t next_offset = IVAL(pdata,offset);
824 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
825
826 if (!eal) {
827 return NULL;
828 }
829
830 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
831 if (next_offset == 0) {
832 break;
833 }
834 offset += next_offset;
835 }
836
837 return ea_list_head;
838 }
839
840 /****************************************************************************
841 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
842 ****************************************************************************/
843
844 static void call_nt_transact_create(connection_struct *conn,
845 struct smb_request *req,
846 uint16 **ppsetup, uint32 setup_count,
847 char **ppparams, uint32 parameter_count,
848 char **ppdata, uint32 data_count,
849 uint32 max_data_count)
850 {
851 struct smb_filename *smb_fname = NULL;
852 char *fname = NULL;
853 char *params = *ppparams;
854 char *data = *ppdata;
855 /* Breakout the oplock request bits so we can set the reply bits separately. */
856 uint32 fattr=0;
857 SMB_OFF_T file_len = 0;
858 int info = 0;
859 files_struct *fsp = NULL;
860 char *p = NULL;
861 uint32 flags;
862 uint32 access_mask;
863 uint32 file_attributes;
864 uint32 share_access;
865 uint32 create_disposition;
866 uint32 create_options;
867 uint32 sd_len;
868 struct security_descriptor *sd = NULL;
869 uint32 ea_len;
870 uint16 root_dir_fid;
871 struct timespec create_timespec;
872 struct timespec c_timespec;
873 struct timespec a_timespec;
874 struct timespec m_timespec;
875 struct timespec write_time_ts;
876 struct ea_list *ea_list = NULL;
877 NTSTATUS status;
878 size_t param_len;
879 uint64_t allocation_size;
880 int oplock_request;
881 uint8_t oplock_granted;
882 TALLOC_CTX *ctx = talloc_tos();
883
884 DEBUG(5,("call_nt_transact_create\n"));
885
886 /*
887 * If it's an IPC, use the pipe handler.
888 */
889
890 if (IS_IPC(conn)) {
891 if (lp_nt_pipe_support()) {
892 do_nt_transact_create_pipe(
893 conn, req,
894 ppsetup, setup_count,
895 ppparams, parameter_count,
896 ppdata, data_count);
897 goto out;
898 }
899 reply_doserror(req, ERRDOS, ERRnoaccess);
900 goto out;
901 }
902
903 /*
904 * Ensure minimum number of parameters sent.
905 */
906
907 if(parameter_count < 54) {
908 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
909 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
910 goto out;
911 }
912
913 flags = IVAL(params,0);
914 access_mask = IVAL(params,8);
915 file_attributes = IVAL(params,20);
916 share_access = IVAL(params,24);
917 create_disposition = IVAL(params,28);
918 create_options = IVAL(params,32);
919 sd_len = IVAL(params,36);
920 ea_len = IVAL(params,40);
921 root_dir_fid = (uint16)IVAL(params,4);
922 allocation_size = (uint64_t)IVAL(params,12);
923 #ifdef LARGE_SMB_OFF_T
924 allocation_size |= (((uint64_t)IVAL(params,16)) << 32);
925 #endif
926
927 /*
928 * we need to remove ignored bits when they come directly from the client
929 * because we reuse some of them for internal stuff
930 */
931 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
932
933 /* Ensure the data_len is correct for the sd and ea values given. */
934 if ((ea_len + sd_len > data_count)
935 || (ea_len > data_count) || (sd_len > data_count)
936 || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
937 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
938 "%u, data_count = %u\n", (unsigned int)ea_len,
939 (unsigned int)sd_len, (unsigned int)data_count));
940 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
941 goto out;
942 }
943
944 if (sd_len) {
945 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
946 sd_len));
947
948 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
949 &sd);
950 if (!NT_STATUS_IS_OK(status)) {
951 DEBUG(10, ("call_nt_transact_create: "
952 "unmarshall_sec_desc failed: %s\n",
953 nt_errstr(status)));
954 reply_nterror(req, status);
955 goto out;
956 }
957 }
958
959 if (ea_len) {
960 if (!lp_ea_support(SNUM(conn))) {
961 DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
962 "EA's not supported.\n",
963 (unsigned int)ea_len));
964 reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
965 goto out;
966 }
967
968 if (ea_len < 10) {
969 DEBUG(10,("call_nt_transact_create - ea_len = %u - "
970 "too small (should be more than 10)\n",
971 (unsigned int)ea_len ));
972 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
973 goto out;
974 }
975
976 /* We have already checked that ea_len <= data_count here. */
977 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
978 ea_len);
979 if (ea_list == NULL) {
980 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
981 goto out;
982 }
983 }
984
985 srvstr_get_path(ctx, params, req->flags2, &fname,
986 params+53, parameter_count-53,
987 STR_TERMINATE, &status);
988 if (!NT_STATUS_IS_OK(status)) {
989 reply_nterror(req, status);
990 goto out;
991 }
992
993 status = filename_convert(ctx,
994 conn,
995 req->flags2 & FLAGS2_DFS_PATHNAMES,
996 fname,
997 0,
998 NULL,
999 &smb_fname);
1000
1001 if (!NT_STATUS_IS_OK(status)) {
1002 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1003 reply_botherror(req,
1004 NT_STATUS_PATH_NOT_COVERED,
1005 ERRSRV, ERRbadpath);
1006 goto out;
1007 }
1008 reply_nterror(req, status);
1009 goto out;
1010 }
1011
1012 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1013 if (oplock_request) {
1014 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1015 ? BATCH_OPLOCK : 0;
1016 }
1017
1018 status = SMB_VFS_CREATE_FILE(
1019 conn, /* conn */
1020 req, /* req */
1021 root_dir_fid, /* root_dir_fid */
1022 smb_fname, /* fname */
1023 access_mask, /* access_mask */
1024 share_access, /* share_access */
1025 create_disposition, /* create_disposition*/
1026 create_options, /* create_options */
1027 file_attributes, /* file_attributes */
1028 oplock_request, /* oplock_request */
1029 allocation_size, /* allocation_size */
1030 sd, /* sd */
1031 ea_list, /* ea_list */
1032 &fsp, /* result */
1033 &info); /* pinfo */
1034
1035 if(!NT_STATUS_IS_OK(status)) {
1036 if (open_was_deferred(req->mid)) {
1037 /* We have re-scheduled this call, no error. */
1038 return;
1039 }
1040 reply_openerror(req, status);
1041 goto out;
1042 }
1043
1044 /* Ensure we're pointing at the correct stat struct. */
1045 TALLOC_FREE(smb_fname);
1046 smb_fname = fsp->fsp_name;
1047
1048 /*
1049 * If the caller set the extended oplock request bit
1050 * and we granted one (by whatever means) - set the
1051 * correct bit for extended oplock reply.
1052 */
1053
1054 if (oplock_request &&
1055 (lp_fake_oplocks(SNUM(conn))
1056 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1057
1058 /*
1059 * Exclusive oplock granted
1060 */
1061
1062 if (flags & REQUEST_BATCH_OPLOCK) {
1063 oplock_granted = BATCH_OPLOCK_RETURN;
1064 } else {
1065 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1066 }
1067 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1068 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1069 } else {
1070 oplock_granted = NO_OPLOCK_RETURN;
1071 }
1072
1073 file_len = smb_fname->st.st_ex_size;
1074
1075 /* Realloc the size of parameters and data we will return */
1076 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1077 /* Extended response is 32 more byyes. */
1078 param_len = 101;
1079 } else {
1080 param_len = 69;
1081 }
1082 params = nttrans_realloc(ppparams, param_len);
1083 if(params == NULL) {
1084 reply_doserror(req, ERRDOS, ERRnomem);
1085 goto out;
1086 }
1087
1088 p = params;
1089 SCVAL(p, 0, oplock_granted);
1090
1091 p += 2;
1092 SSVAL(p,0,fsp->fnum);
1093 p += 2;
1094 if ((create_disposition == FILE_SUPERSEDE)
1095 && (info == FILE_WAS_OVERWRITTEN)) {
1096 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1097 } else {
1098 SIVAL(p,0,info);
1099 }
1100 p += 8;
1101
1102 fattr = dos_mode(conn, smb_fname);
1103 if (fattr == 0) {
1104 fattr = FILE_ATTRIBUTE_NORMAL;
1105 }
1106
1107 /* Deal with other possible opens having a modified
1108 write time. JRA. */
1109 ZERO_STRUCT(write_time_ts);
1110 get_file_infos(fsp->file_id, NULL, &write_time_ts);
1111 if (!null_timespec(write_time_ts)) {
1112 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
1113 }
1114
1115 /* Create time. */
1116 create_timespec = get_create_timespec(conn, fsp, smb_fname);
1117 a_timespec = smb_fname->st.st_ex_atime;
1118 m_timespec = smb_fname->st.st_ex_mtime;
1119 c_timespec = get_change_timespec(conn, fsp, smb_fname);
1120
1121 if (lp_dos_filetime_resolution(SNUM(conn))) {
1122 dos_filetime_timespec(&create_timespec);
1123 dos_filetime_timespec(&a_timespec);
1124 dos_filetime_timespec(&m_timespec);
1125 dos_filetime_timespec(&c_timespec);
1126 }
1127
1128 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
1129 p += 8;
1130 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
1131 p += 8;
1132 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
1133 p += 8;
1134 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
1135 p += 8;
1136 SIVAL(p,0,fattr); /* File Attributes. */
1137 p += 4;
1138 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1139 p += 8;
1140 SOFF_T(p,0,file_len);
1141 p += 8;
1142 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1143 SSVAL(p,2,0x7);
1144 }
1145 p += 4;
1146 SCVAL(p,0,fsp->is_directory ? 1 : 0);
1147
1148 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1149 uint32 perms = 0;
1150 p += 25;
1151 if (fsp->is_directory ||
1152 can_write_to_file(conn, smb_fname)) {
1153 perms = FILE_GENERIC_ALL;
1154 } else {
1155 perms = FILE_GENERIC_READ|FILE_EXECUTE;
1156 }
1157 SIVAL(p,0,perms);
1158 }
1159
1160 DEBUG(5,("call_nt_transact_create: open name = %s\n",
1161 smb_fname_str_dbg(smb_fname)));
1162
1163 /* Send the required number of replies */
1164 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1165 out:
1166 return;
1167 }
1168
1169 /****************************************************************************
1170 Reply to a NT CANCEL request.
1171 conn POINTER CAN BE NULL HERE !
1172 ****************************************************************************/
1173
1174 void reply_ntcancel(struct smb_request *req)
1175 {
1176 /*
1177 * Go through and cancel any pending change notifies.
1178 */
1179
1180 START_PROFILE(SMBntcancel);
1181 srv_cancel_sign_response(smbd_server_conn);
1182 remove_pending_change_notify_requests_by_mid(req->mid);
1183 remove_pending_lock_requests_by_mid(req->mid);
1184
1185 DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", req->mid));
1186
1187 END_PROFILE(SMBntcancel);
1188 return;
1189 }
1190
1191 /****************************************************************************
1192 Copy a file.
1193 ****************************************************************************/
1194
1195 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1196 connection_struct *conn,
1197 struct smb_request *req,
1198 struct smb_filename *smb_fname_src,
1199 struct smb_filename *smb_fname_dst,
1200 uint32 attrs)
1201 {
1202 files_struct *fsp1,*fsp2;
1203 uint32 fattr;
1204 int info;
1205 SMB_OFF_T ret=-1;
1206 NTSTATUS status = NT_STATUS_OK;
1207 char *parent;
1208
1209 if (!CAN_WRITE(conn)) {
1210 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1211 goto out;
1212 }
1213
1214 /* Source must already exist. */
1215 if (!VALID_STAT(smb_fname_src->st)) {
1216 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1217 goto out;
1218 }
1219
1220 /* Ensure attributes match. */
1221 fattr = dos_mode(conn, smb_fname_src);
1222 if ((fattr & ~attrs) & (aHIDDEN | aSYSTEM)) {
1223 status = NT_STATUS_NO_SUCH_FILE;
1224 goto out;
1225 }
1226
1227 /* Disallow if dst file already exists. */
1228 if (VALID_STAT(smb_fname_dst->st)) {
1229 status = NT_STATUS_OBJECT_NAME_COLLISION;
1230 goto out;
1231 }
1232
1233 /* No links from a directory. */
1234 if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1235 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1236 goto out;
1237 }
1238
1239 DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1240 smb_fname_str_dbg(smb_fname_src),
1241 smb_fname_str_dbg(smb_fname_dst)));
1242
1243 status = SMB_VFS_CREATE_FILE(
1244 conn, /* conn */
1245 req, /* req */
1246 0, /* root_dir_fid */
1247 smb_fname_src, /* fname */
1248 FILE_READ_DATA, /* access_mask */
1249 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1250 FILE_SHARE_DELETE),
1251 FILE_OPEN, /* create_disposition*/
1252 0, /* create_options */
1253 FILE_ATTRIBUTE_NORMAL, /* file_attributes */
1254 NO_OPLOCK, /* oplock_request */
1255 0, /* allocation_size */
1256 NULL, /* sd */
1257 NULL, /* ea_list */
1258 &fsp1, /* result */
1259 &info); /* pinfo */
1260
1261 if (!NT_STATUS_IS_OK(status)) {
1262 goto out;
1263 }
1264
1265 status = SMB_VFS_CREATE_FILE(
1266 conn, /* conn */
1267 req, /* req */
1268 0, /* root_dir_fid */
1269 smb_fname_dst, /* fname */
1270 FILE_WRITE_DATA, /* access_mask */
1271 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1272 FILE_SHARE_DELETE),
1273 FILE_CREATE, /* create_disposition*/
1274 0, /* create_options */
1275 fattr, /* file_attributes */
1276 NO_OPLOCK, /* oplock_request */
1277 0, /* allocation_size */
1278 NULL, /* sd */
1279 NULL, /* ea_list */
1280 &fsp2, /* result */
1281 &info); /* pinfo */
1282
1283 if (!NT_STATUS_IS_OK(status)) {
1284 close_file(NULL, fsp1, ERROR_CLOSE);
1285 goto out;
1286 }
1287
1288 if (smb_fname_src->st.st_ex_size) {
1289 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1290 }
1291
1292 /*
1293 * As we are opening fsp1 read-only we only expect
1294 * an error on close on fsp2 if we are out of space.
1295 * Thus we don't look at the error return from the
1296 * close of fsp1.
1297 */
1298 close_file(NULL, fsp1, NORMAL_CLOSE);
1299
1300 /* Ensure the modtime is set correctly on the destination file. */
1301 set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1302
1303 status = close_file(NULL, fsp2, NORMAL_CLOSE);
1304
1305 /* Grrr. We have to do this as open_file_ntcreate adds aARCH when it
1306 creates the file. This isn't the correct thing to do in the copy
1307 case. JRA */
1308 if (!parent_dirname(talloc_tos(), smb_fname_dst->base_name, &parent,
1309 NULL)) {
1310 status = NT_STATUS_NO_MEMORY;
1311 goto out;
1312 }
1313 file_set_dosmode(conn, smb_fname_dst, fattr, parent, false);
1314 TALLOC_FREE(parent);
1315
1316 if (ret < (SMB_OFF_T)smb_fname_src->st.st_ex_size) {
1317 status = NT_STATUS_DISK_FULL;
1318 goto out;
1319 }
1320 out:
1321 if (!NT_STATUS_IS_OK(status)) {
1322 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1323 nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1324 smb_fname_str_dbg(smb_fname_dst)));
1325 }
1326
1327 return status;
1328 }
1329
1330 /****************************************************************************
1331 Reply to a NT rename request.
1332 ****************************************************************************/
1333
1334 void reply_ntrename(struct smb_request *req)
1335 {
1336 connection_struct *conn = req->conn;
1337 struct smb_filename *smb_fname_old = NULL;
1338 struct smb_filename *smb_fname_new = NULL;
1339 char *oldname = NULL;
1340 char *newname = NULL;
1341 const char *p;
1342 NTSTATUS status;
1343 bool src_has_wcard = False;
1344 bool dest_has_wcard = False;
1345 uint32 attrs;
1346 uint32_t ucf_flags_src = 0;
1347 uint32_t ucf_flags_dst = 0;
1348 uint16 rename_type;
1349 TALLOC_CTX *ctx = talloc_tos();
1350
1351 START_PROFILE(SMBntrename);
1352
1353 if (req->wct < 4) {
1354 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1355 goto out;
1356 }
1357
1358 attrs = SVAL(req->vwv+0, 0);
1359 rename_type = SVAL(req->vwv+1, 0);
1360
1361 p = (const char *)req->buf + 1;
1362 p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1363 &status, &src_has_wcard);
1364 if (!NT_STATUS_IS_OK(status)) {
1365 reply_nterror(req, status);
1366 goto out;
1367 }
1368
1369 if (ms_has_wild(oldname)) {
1370 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1371 goto out;
1372 }
1373
1374 p++;
1375 p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1376 &status, &dest_has_wcard);
1377 if (!NT_STATUS_IS_OK(status)) {
1378 reply_nterror(req, status);
1379 goto out;
1380 }
1381
1382 /* The newname must begin with a ':' if the oldname contains a ':'. */
1383 if (strchr_m(oldname, ':') && (newname[0] != ':')) {
1384 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1385 goto out;
1386 }
1387
1388 /*
1389 * If this is a rename operation, allow wildcards and save the
1390 * destination's last component.
1391 */
1392 if (rename_type == RENAME_FLAG_RENAME) {
1393 ucf_flags_src = UCF_COND_ALLOW_WCARD_LCOMP;
1394 ucf_flags_dst = UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1395 }
1396
1397 /* rename_internals() calls unix_convert(), so don't call it here. */
1398 status = filename_convert(ctx, conn,
1399 req->flags2 & FLAGS2_DFS_PATHNAMES,
1400 oldname,
1401 ucf_flags_src,
1402 NULL,
1403 &smb_fname_old);
1404 if (!NT_STATUS_IS_OK(status)) {
1405 if (NT_STATUS_EQUAL(status,
1406 NT_STATUS_PATH_NOT_COVERED)) {
1407 reply_botherror(req,
1408 NT_STATUS_PATH_NOT_COVERED,
1409 ERRSRV, ERRbadpath);
1410 goto out;
1411 }
1412 reply_nterror(req, status);
1413 goto out;
1414 }
1415
1416 status = filename_convert(ctx, conn,
1417 req->flags2 & FLAGS2_DFS_PATHNAMES,
1418 newname,
1419 ucf_flags_dst,
1420 &dest_has_wcard,
1421 &smb_fname_new);
1422 if (!NT_STATUS_IS_OK(status)) {
1423 if (NT_STATUS_EQUAL(status,
1424 NT_STATUS_PATH_NOT_COVERED)) {
1425 reply_botherror(req,
1426 NT_STATUS_PATH_NOT_COVERED,
1427 ERRSRV, ERRbadpath);
1428 goto out;
1429 }
1430 reply_nterror(req, status);
1431 goto out;
1432 }
1433
1434 DEBUG(3,("reply_ntrename: %s -> %s\n",
1435 smb_fname_str_dbg(smb_fname_old),
1436 smb_fname_str_dbg(smb_fname_new)));
1437
1438 switch(rename_type) {
1439 case RENAME_FLAG_RENAME:
1440 status = rename_internals(ctx, conn, req,
1441 smb_fname_old, smb_fname_new,
1442 attrs, False, src_has_wcard,
1443 dest_has_wcard,
1444 DELETE_ACCESS);
1445 break;
1446 case RENAME_FLAG_HARD_LINK:
1447 if (src_has_wcard || dest_has_wcard) {
1448 /* No wildcards. */
1449 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1450 } else {
1451 status = hardlink_internals(ctx, conn,
1452 smb_fname_old,
1453 smb_fname_new);
1454 }
1455 break;
1456 case RENAME_FLAG_COPY:
1457 if (src_has_wcard || dest_has_wcard) {
1458 /* No wildcards. */
1459 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1460 } else {
1461 status = copy_internals(ctx, conn, req,
1462 smb_fname_old,
1463 smb_fname_new,
1464 attrs);
1465 }
1466 break;
1467 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1468 status = NT_STATUS_INVALID_PARAMETER;
1469 break;
1470 default:
1471 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1472 break;
1473 }
1474
1475 if (!NT_STATUS_IS_OK(status)) {
1476 if (open_was_deferred(req->mid)) {
1477 /* We have re-scheduled this call. */
1478 goto out;
1479 }
1480
1481 reply_nterror(req, status);
1482 goto out;
1483 }
1484
1485 reply_outbuf(req, 0, 0);
1486 out:
1487 END_PROFILE(SMBntrename);
1488 return;
1489 }
1490
1491 /****************************************************************************
1492 Reply to a notify change - queue the request and
1493 don't allow a directory to be opened.
1494 ****************************************************************************/
1495
1496 static void smbd_smb1_notify_reply(struct smb_request *req,
1497 NTSTATUS error_code,
1498 uint8_t *buf, size_t len)
1499 {
1500 send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1501 }
1502
1503 static void call_nt_transact_notify_change(connection_struct *conn,
1504 struct smb_request *req,
1505 uint16 **ppsetup,
1506 uint32 setup_count,
1507 char **ppparams,
1508 uint32 parameter_count,
1509 char **ppdata, uint32 data_count,
1510 uint32 max_data_count,
1511 uint32 max_param_count)
1512 {
1513 uint16 *setup = *ppsetup;
1514 files_struct *fsp;
1515 uint32 filter;
1516 NTSTATUS status;
1517 bool recursive;
1518
1519 if(setup_count < 6) {
1520 reply_doserror(req, ERRDOS, ERRbadfunc);
1521 return;
1522 }
1523
1524 fsp = file_fsp(req, SVAL(setup,4));
1525 filter = IVAL(setup, 0);
1526 recursive = (SVAL(setup, 6) != 0) ? True : False;
1527
1528 DEBUG(3,("call_nt_transact_notify_change\n"));
1529
1530 if(!fsp) {
1531 reply_doserror(req, ERRDOS, ERRbadfid);
1532 return;
1533 }
1534
1535 {
1536 char *filter_string;
1537
1538 if (!(filter_string = notify_filter_string(NULL, filter))) {
1539 reply_nterror(req,NT_STATUS_NO_MEMORY);
1540 return;
1541 }
1542
1543 DEBUG(3,("call_nt_transact_notify_change: notify change "
1544 "called on %s, filter = %s, recursive = %d\n",
1545 fsp_str_dbg(fsp), filter_string, recursive));
1546
1547 TALLOC_FREE(filter_string);
1548 }
1549
1550 if((!fsp->is_directory) || (conn != fsp->conn)) {
1551 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1552 return;
1553 }
1554
1555 if (fsp->notify == NULL) {
1556
1557 status = change_notify_create(fsp, filter, recursive);
1558
1559 if (!NT_STATUS_IS_OK(status)) {
1560 DEBUG(10, ("change_notify_create returned %s\n",
1561 nt_errstr(status)));
1562 reply_nterror(req, status);
1563 return;
1564 }
1565 }
1566
1567 if (fsp->notify->num_changes != 0) {
1568
1569 /*
1570 * We've got changes pending, respond immediately
1571 */
1572
1573 /*
1574 * TODO: write a torture test to check the filtering behaviour
1575 * here.
1576 */
1577
1578 change_notify_reply(fsp->conn, req,
1579 NT_STATUS_OK,
1580 max_param_count,
1581 fsp->notify,
1582 smbd_smb1_notify_reply);
1583
1584 /*
1585 * change_notify_reply() above has independently sent its
1586 * results
1587 */
1588 return;
1589 }
1590
1591 /*
1592 * No changes pending, queue the request
1593 */
1594
1595 status = change_notify_add_request(req,
1596 max_param_count,
1597 filter,
1598 recursive, fsp,
1599 smbd_smb1_notify_reply);
1600 if (!NT_STATUS_IS_OK(status)) {
1601 reply_nterror(req, status);
1602 }
1603 return;
1604 }
1605
1606 /****************************************************************************
1607 Reply to an NT transact rename command.
1608 ****************************************************************************/
1609
1610 static void call_nt_transact_rename(connection_struct *conn,
1611 struct smb_request *req,
1612 uint16 **ppsetup, uint32 setup_count,
1613 char **ppparams, uint32 parameter_count,
1614 char **ppdata, uint32 data_count,
1615 uint32 max_data_count)
1616 {
1617 char *params = *ppparams;
1618 char *new_name = NULL;
1619 files_struct *fsp = NULL;
1620 bool dest_has_wcard = False;
1621 NTSTATUS status;
1622 TALLOC_CTX *ctx = talloc_tos();
1623
1624 if(parameter_count < 5) {
1625 reply_doserror(req, ERRDOS, ERRbadfunc);
1626 return;
1627 }
1628
1629 fsp = file_fsp(req, SVAL(params, 0));
1630 if (!check_fsp(conn, req, fsp)) {
1631 return;
1632 }
1633 srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1634 parameter_count - 4,
1635 STR_TERMINATE, &status, &dest_has_wcard);
1636 if (!NT_STATUS_IS_OK(status)) {
1637 reply_nterror(req, status);
1638 return;
1639 }
1640
1641 /*
1642 * W2K3 ignores this request as the RAW-RENAME test
1643 * demonstrates, so we do.
1644 */
1645 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1646
1647 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1648 fsp_str_dbg(fsp), new_name));
1649
1650 return;
1651 }
1652
1653 /******************************************************************************
1654 Fake up a completely empty SD.
1655 *******************************************************************************/
1656
1657 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
1658 {
1659 size_t sd_size;
1660
1661 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1662 if(!*ppsd) {
1663 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1664 return NT_STATUS_NO_MEMORY;
1665 }
1666
1667 return NT_STATUS_OK;
1668 }
1669
1670 /****************************************************************************
1671 Reply to query a security descriptor.
1672 ****************************************************************************/
1673
1674 static void call_nt_transact_query_security_desc(connection_struct *conn,
1675 struct smb_request *req,
1676 uint16 **ppsetup,
1677 uint32 setup_count,
1678 char **ppparams,
1679 uint32 parameter_count,
1680 char **ppdata,
1681 uint32 data_count,
1682 uint32 max_data_count)
1683 {
1684 char *params = *ppparams;
1685 char *data = *ppdata;
1686 SEC_DESC *psd = NULL;
1687 size_t sd_size;
1688 uint32 security_info_wanted;
1689 files_struct *fsp = NULL;
1690 NTSTATUS status;
1691 DATA_BLOB blob;
1692
1693 if(parameter_count < 8) {
1694 reply_doserror(req, ERRDOS, ERRbadfunc);
1695 return;
1696 }
1697
1698 fsp = file_fsp(req, SVAL(params,0));
1699 if(!fsp) {
1700 reply_doserror(req, ERRDOS, ERRbadfid);
1701 return;
1702 }
1703
1704 security_info_wanted = IVAL(params,4);
1705
1706 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
1707 "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
1708 (unsigned int)security_info_wanted));
1709
1710 params = nttrans_realloc(ppparams, 4);
1711 if(params == NULL) {
1712 reply_doserror(req, ERRDOS, ERRnomem);
1713 return;
1714 }
1715
1716 /*
1717 * Get the permissions to return.
1718 */
1719
1720 if (!lp_nt_acl_support(SNUM(conn))) {
1721 status = get_null_nt_acl(talloc_tos(), &psd);
1722 } else {
1723 status = SMB_VFS_FGET_NT_ACL(
1724 fsp, security_info_wanted, &psd);
1725 }
1726 if (!NT_STATUS_IS_OK(status)) {
1727 reply_nterror(req, status);
1728 return;
1729 }
1730
1731 /* If the SACL/DACL is NULL, but was requested, we mark that it is
1732 * present in the reply to match Windows behavior */
1733 if (psd->sacl == NULL &&
1734 security_info_wanted & SACL_SECURITY_INFORMATION)
1735 psd->type |= SEC_DESC_SACL_PRESENT;
1736 if (psd->dacl == NULL &&
1737 security_info_wanted & DACL_SECURITY_INFORMATION)
1738 psd->type |= SEC_DESC_DACL_PRESENT;
1739
1740 sd_size = ndr_size_security_descriptor(psd, NULL, 0);
1741
1742 DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %lu.\n",(unsigned long)sd_size));
1743
1744 if (DEBUGLEVEL >= 10) {
1745 DEBUG(10,("call_nt_transact_query_security_desc for file %s\n",
1746 fsp_str_dbg(fsp)));
1747 NDR_PRINT_DEBUG(security_descriptor, psd);
1748 }
1749
1750 SIVAL(params,0,(uint32)sd_size);
1751
1752 if (max_data_count < sd_size) {
1753 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1754 params, 4, *ppdata, 0);
1755 return;
1756 }
1757
1758 /*
1759 * Allocate the data we will point this at.
1760 */
1761
1762 data = nttrans_realloc(ppdata, sd_size);
1763 if(data == NULL) {
1764 reply_doserror(req, ERRDOS, ERRnomem);
1765 return;
1766 }
1767
1768 status = marshall_sec_desc(talloc_tos(), psd,
1769 &blob.data, &blob.length);
1770
1771 if (!NT_STATUS_IS_OK(status)) {
1772 reply_nterror(req, status);
1773 return;
1774 }
1775
1776 SMB_ASSERT(sd_size == blob.length);
1777 memcpy(data, blob.data, sd_size);
1778
1779 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
1780
1781 return;
1782 }
1783
1784 /****************************************************************************
1785 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
1786 ****************************************************************************/
1787
1788 static void call_nt_transact_set_security_desc(connection_struct *conn,
1789 struct smb_request *req,
1790 uint16 **ppsetup,
1791 uint32 setup_count,
1792 char **ppparams,
1793 uint32 parameter_count,
1794 char **ppdata,
1795 uint32 data_count,
1796 uint32 max_data_count)
1797 {
1798 char *params= *ppparams;
1799 char *data = *ppdata;
1800 files_struct *fsp = NULL;
1801 uint32 security_info_sent = 0;
1802 NTSTATUS status;
1803
1804 if(parameter_count < 8) {
1805 reply_doserror(req, ERRDOS, ERRbadfunc);
1806 return;
1807 }
1808
1809 if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
1810 reply_doserror(req, ERRDOS, ERRbadfid);
1811 return;
1812 }
1813
1814 if(!lp_nt_acl_support(SNUM(conn))) {
1815 goto done;
1816 }
1817
1818 security_info_sent = IVAL(params,4);
1819
1820 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
1821 fsp_str_dbg(fsp), (unsigned int)security_info_sent));
1822
1823 if (data_count == 0) {
1824 reply_doserror(req, ERRDOS, ERRnoaccess);
1825 return;
1826 }
1827
1828 status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
1829
1830 if (!NT_STATUS_IS_OK(status)) {
1831 reply_nterror(req, status);
1832 return;
1833 }
1834
1835 done:
1836 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1837 return;
1838 }
1839
1840 /****************************************************************************
1841 Reply to NT IOCTL
1842 ****************************************************************************/
1843
1844 static void call_nt_transact_ioctl(connection_struct *conn,
1845 struct smb_request *req,
1846 uint16 **ppsetup, uint32 setup_count,
1847 char **ppparams, uint32 parameter_count,
1848 char **ppdata, uint32 data_count,
1849 uint32 max_data_count)
1850 {
1851 uint32 function;
1852 uint16 fidnum;
1853 files_struct *fsp;
1854 uint8 isFSctl;
1855 uint8 compfilter;
1856 char *pdata = *ppdata;
1857
1858 if (setup_count != 8) {
1859 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
1860 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1861 return;
1862 }
1863
1864 function = IVAL(*ppsetup, 0);
1865 fidnum = SVAL(*ppsetup, 4);
1866 isFSctl = CVAL(*ppsetup, 6);
1867 compfilter = CVAL(*ppsetup, 7);
1868
1869 DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
1870 function, fidnum, isFSctl, compfilter));
1871
1872 fsp=file_fsp(req, fidnum);
1873 /* this check is done in each implemented function case for now
1874 because I don't want to break anything... --metze
1875 FSP_BELONGS_CONN(fsp,conn);*/
1876
1877 SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
1878
1879 switch (function) {
1880 case FSCTL_SET_SPARSE:
1881 /* pretend this succeeded - tho strictly we should
1882 mark the file sparse (if the local fs supports it)
1883 so we can know if we need to pre-allocate or not */
1884
1885 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum));
1886 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1887 return;
1888
1889 case FSCTL_CREATE_OR_GET_OBJECT_ID:
1890 {
1891 unsigned char objid[16];
1892
1893 /* This should return the object-id on this file.
1894 * I think I'll make this be the inode+dev. JRA.
1895 */
1896
1897 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
1898
1899 if (!fsp_belongs_conn(conn, req, fsp)) {
1900 return;
1901 }
1902
1903 data_count = 64;
1904 pdata = nttrans_realloc(ppdata, data_count);
1905 if (pdata == NULL) {
1906 reply_nterror(req, NT_STATUS_NO_MEMORY);
1907 return;
1908 }
1909
1910 /* For backwards compatibility only store the dev/inode. */
1911 push_file_id_16(pdata, &fsp->file_id);
1912 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
1913 push_file_id_16(pdata+32, &fsp->file_id);
1914 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
1915 pdata, data_count);
1916 return;
1917 }
1918
1919 case FSCTL_GET_REPARSE_POINT:
1920 /* pretend this fail - my winXP does it like this
1921 * --metze
1922 */
1923
1924 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1925 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1926 return;
1927
1928 case FSCTL_SET_REPARSE_POINT:
1929 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
1930 * --metze
1931 */
1932
1933 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1934 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1935 return;
1936
1937 case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
1938 {
1939 /*
1940 * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
1941 * and return their volume names. If max_data_count is 16, then it is just
1942 * asking for the number of volumes and length of the combined names.
1943 *
1944 * pdata is the data allocated by our caller, but that uses
1945 * total_data_count (which is 0 in our case) rather than max_data_count.
1946 * Allocate the correct amount and return the pointer to let
1947 * it be deallocated when we return.
1948 */
1949 SHADOW_COPY_DATA *shadow_data = NULL;
1950 TALLOC_CTX *shadow_mem_ctx = NULL;
1951 bool labels = False;
1952 uint32 labels_data_count = 0;
1953 uint32 i;
1954 char *cur_pdata;
1955
1956 if (!fsp_belongs_conn(conn, req, fsp)) {
1957 return;
1958 }
1959
1960 if (max_data_count < 16) {
1961 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
1962 max_data_count));
1963 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1964 return;
1965 }
1966
1967 if (max_data_count > 16) {
1968 labels = True;
1969 }
1970
1971 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
1972 if (shadow_mem_ctx == NULL) {
1973 DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
1974 reply_nterror(req, NT_STATUS_NO_MEMORY);
1975 return;
1976 }
1977
1978 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
1979 if (shadow_data == NULL) {
1980 DEBUG(0,("TALLOC_ZERO() failed!\n"));
1981 talloc_destroy(shadow_mem_ctx);
1982 reply_nterror(req, NT_STATUS_NO_MEMORY);
1983 return;
1984 }
1985
1986 shadow_data->mem_ctx = shadow_mem_ctx;
1987
1988 /*
1989 * Call the VFS routine to actually do the work.
1990 */
1991 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
1992 talloc_destroy(shadow_data->mem_ctx);
1993 if (errno == ENOSYS) {
1994 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
1995 conn->connectpath));
1996 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1997 return;
1998 } else {
1999 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
2000 conn->connectpath));
2001 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
2002 return;
2003 }
2004 }
2005
2006 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
2007
2008 if (!labels) {
2009 data_count = 16;
2010 } else {
2011 data_count = 12+labels_data_count+4;
2012 }
2013
2014 if (max_data_count<data_count) {
2015 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
2016 max_data_count,data_count));
2017 talloc_destroy(shadow_data->mem_ctx);
2018 reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
2019 return;
2020 }
2021
2022 pdata = nttrans_realloc(ppdata, data_count);
2023 if (pdata == NULL) {
2024 talloc_destroy(shadow_data->mem_ctx);
2025 reply_nterror(req, NT_STATUS_NO_MEMORY);
2026 return;
2027 }
2028
2029 cur_pdata = pdata;
2030
2031 /* num_volumes 4 bytes */
2032 SIVAL(pdata,0,shadow_data->num_volumes);
2033
2034 if (labels) {
2035 /* num_labels 4 bytes */
2036 SIVAL(pdata,4,shadow_data->num_volumes);
2037 }
2038
2039 /* needed_data_count 4 bytes */
2040 SIVAL(pdata, 8, labels_data_count+4);
2041
2042 cur_pdata+=12;
2043
2044 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
2045 shadow_data->num_volumes, fsp_str_dbg(fsp)));
2046 if (labels && shadow_data->labels) {
2047 for (i=0;i<shadow_data->num_volumes;i++) {
2048 srvstr_push(pdata, req->flags2,
2049 cur_pdata, shadow_data->labels[i],
2050 2*sizeof(SHADOW_COPY_LABEL),
2051 STR_UNICODE|STR_TERMINATE);
2052 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
2053 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
2054 }
2055 }
2056
2057 talloc_destroy(shadow_data->mem_ctx);
2058
2059 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2060 pdata, data_count);
2061
2062 return;
2063 }
2064
2065 case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
2066 {
2067 /* pretend this succeeded -
2068 *
2069 * we have to send back a list with all files owned by this SID
2070 *
2071 * but I have to check that --metze
2072 */
2073 DOM_SID sid;
2074 uid_t uid;
2075 size_t sid_len = MIN(data_count-4,SID_MAX_SIZE);
2076
2077 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
2078
2079 if (!fsp_belongs_conn(conn, req, fsp)) {
2080 return;
2081 }
2082
2083 /* unknown 4 bytes: this is not the length of the sid :-( */
2084 /*unknown = IVAL(pdata,0);*/
2085
2086 sid_parse(pdata+4,sid_len,&sid);
2087 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
2088
2089 if (!sid_to_uid(&sid, &uid)) {
2090 DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
2091 sid_string_dbg(&sid),
2092 (unsigned long)sid_len));
2093 uid = (-1);
2094 }
2095
2096 /* we can take a look at the find source :-)
2097 *
2098 * find ./ -uid $uid -name '*' is what we need here
2099 *
2100 *
2101 * and send 4bytes len and then NULL terminated unicode strings
2102 * for each file
2103 *
2104 * but I don't know how to deal with the paged results
2105 * (maybe we can hang the result anywhere in the fsp struct)
2106 *
2107 * we don't send all files at once
2108 * and at the next we should *not* start from the beginning,
2109 * so we have to cache the result
2110 *
2111 * --metze
2112 */
2113
2114 /* this works for now... */
2115 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2116 return;
2117 }
2118 default:
2119 if (!logged_ioctl_message) {
2120 logged_ioctl_message = true; /* Only print this once... */
2121 DEBUG(0,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n",
2122 function));
2123 }
2124 }
2125
2126 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2127 }
2128
2129
2130 #ifdef HAVE_SYS_QUOTAS
2131 /****************************************************************************
2132 Reply to get user quota
2133 ****************************************************************************/
2134
2135 static void call_nt_transact_get_user_quota(connection_struct *conn,
2136 struct smb_request *req,
2137 uint16 **ppsetup,
2138 uint32 setup_count,
2139 char **ppparams,
2140 uint32 parameter_count,
2141 char **ppdata,
2142 uint32 data_count,
2143 uint32 max_data_count)
2144 {
2145 NTSTATUS nt_status = NT_STATUS_OK;
2146 char *params = *ppparams;
2147 char *pdata = *ppdata;
2148 char *entry;
2149 int data_len=0,param_len=0;
2150 int qt_len=0;
2151 int entry_len = 0;
2152 files_struct *fsp = NULL;
2153 uint16 level = 0;
2154 size_t sid_len;
2155 DOM_SID sid;
2156 bool start_enum = True;
2157 SMB_NTQUOTA_STRUCT qt;
2158 SMB_NTQUOTA_LIST *tmp_list;
2159 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2160
2161 ZERO_STRUCT(qt);
2162
2163 /* access check */
2164 if (conn->server_info->utok.uid != 0) {
2165 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2166 "[%s]\n", lp_servicename(SNUM(conn)),
2167 conn->server_info->unix_name));
2168 reply_doserror(req, ERRDOS, ERRnoaccess);
2169 return;
2170 }
2171
2172 /*
2173 * Ensure minimum number of parameters sent.
2174 */
2175
2176 if (parameter_count < 4) {
2177 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2178 reply_doserror(req, ERRDOS, ERRinvalidparam);
2179 return;
2180 }
2181
2182 /* maybe we can check the quota_fnum */
2183 fsp = file_fsp(req, SVAL(params,0));
2184 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2185 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2186 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2187 return;
2188 }
2189
2190 /* the NULL pointer checking for fsp->fake_file_handle->pd
2191 * is done by CHECK_NTQUOTA_HANDLE_OK()
2192 */
2193 qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2194
2195 level = SVAL(params,2);
2196
2197 /* unknown 12 bytes leading in params */
2198
2199 switch (level) {
2200 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2201 /* seems that we should continue with the enum here --metze */
2202
2203 if (qt_handle->quota_list!=NULL &&
2204 qt_handle->tmp_list==NULL) {
2205
2206 /* free the list */
2207 free_ntquota_list(&(qt_handle->quota_list));
2208
2209 /* Realloc the size of parameters and data we will return */
2210 param_len = 4;
2211 params = nttrans_realloc(ppparams, param_len);
2212 if(params == NULL) {
2213 reply_doserror(req, ERRDOS, ERRnomem);
2214 return;
2215 }
2216
2217 data_len = 0;
2218 SIVAL(params,0,data_len);
2219
2220 break;
2221 }
2222
2223 start_enum = False;
2224
2225 case TRANSACT_GET_USER_QUOTA_LIST_START:
2226
2227 if (qt_handle->quota_list==NULL &&
2228 qt_handle->tmp_list==NULL) {
2229 start_enum = True;
2230 }
2231
2232 if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2233 reply_doserror(req, ERRSRV, ERRerror);
2234 return;
2235 }
2236
2237 /* Realloc the size of parameters and data we will return */
2238 param_len = 4;
2239 params = nttrans_realloc(ppparams, param_len);
2240 if(params == NULL) {
2241 reply_doserror(req, ERRDOS, ERRnomem);
2242 return;
2243 }
2244
2245 /* we should not trust the value in max_data_count*/
2246 max_data_count = MIN(max_data_count,2048);
2247
2248 pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2249 if(pdata == NULL) {
2250 reply_doserror(req, ERRDOS, ERRnomem);
2251 return;
2252 }
2253
2254 entry = pdata;
2255
2256 /* set params Size of returned Quota Data 4 bytes*/
2257 /* but set it later when we know it */
2258
2259 /* for each entry push the data */
2260
2261 if (start_enum) {
2262 qt_handle->tmp_list = qt_handle->quota_list;
2263 }
2264
2265 tmp_list = qt_handle->tmp_list;
2266
2267 for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2268 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2269
2270 sid_len = ndr_size_dom_sid(
2271 &tmp_list->quotas->sid, NULL, 0);
2272 entry_len = 40 + sid_len;
2273
2274 /* nextoffset entry 4 bytes */
2275 SIVAL(entry,0,entry_len);
2276
2277 /* then the len of the SID 4 bytes */
2278 SIVAL(entry,4,sid_len);
2279
2280 /* unknown data 8 bytes uint64_t */
2281 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2282
2283 /* the used disk space 8 bytes uint64_t */
2284 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2285
2286 /* the soft quotas 8 bytes uint64_t */
2287 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2288
2289 /* the hard quotas 8 bytes uint64_t */
2290 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2291
2292 /* and now the SID */
2293 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2294 }
2295
2296 qt_handle->tmp_list = tmp_list;
2297
2298 /* overwrite the offset of the last entry */
2299 SIVAL(entry-entry_len,0,0);
2300
2301 data_len = 4+qt_len;
2302 /* overwrite the params quota_data_len */
2303 SIVAL(params,0,data_len);
2304
2305 break;
2306
2307 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2308
2309 /* unknown 4 bytes IVAL(pdata,0) */
2310
2311 if (data_count < 8) {
2312 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2313 reply_doserror(req, ERRDOS, ERRunknownlevel);
2314 return;
2315 }
2316
2317 sid_len = IVAL(pdata,4);
2318 /* Ensure this is less than 1mb. */
2319 if (sid_len > (1024*1024)) {
2320 reply_doserror(req, ERRDOS, ERRnomem);
2321 return;
2322 }
2323
2324 if (data_count < 8+sid_len) {
2325 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2326 reply_doserror(req, ERRDOS, ERRunknownlevel);
2327 return;
2328 }
2329
2330 data_len = 4+40+sid_len;
2331
2332 if (max_data_count < data_len) {
2333 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2334 max_data_count, data_len));
2335 param_len = 4;
2336 SIVAL(params,0,data_len);
2337 data_len = 0;
2338 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2339 break;
2340 }
2341
2342 sid_parse(pdata+8,sid_len,&sid);
2343
2344 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2345 ZERO_STRUCT(qt);
2346 /*
2347 * we have to return zero's in all fields
2348 * instead of returning an error here
2349 * --metze
2350 */
2351 }
2352
2353 /* Realloc the size of parameters and data we will return */
2354 param_len = 4;
2355 params = nttrans_realloc(ppparams, param_len);
2356 if(params == NULL) {
2357 reply_doserror(req, ERRDOS, ERRnomem);
2358 return;
2359 }
2360
2361 pdata = nttrans_realloc(ppdata, data_len);
2362 if(pdata == NULL) {
2363 reply_doserror(req, ERRDOS, ERRnomem);
2364 return;
2365 }
2366
2367 entry = pdata;
2368
2369 /* set params Size of returned Quota Data 4 bytes*/
2370 SIVAL(params,0,data_len);
2371
2372 /* nextoffset entry 4 bytes */
2373 SIVAL(entry,0,0);
2374
2375 /* then the len of the SID 4 bytes */
2376 SIVAL(entry,4,sid_len);
2377
2378 /* unknown data 8 bytes uint64_t */
2379 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2380
2381 /* the used disk space 8 bytes uint64_t */
2382 SBIG_UINT(entry,16,qt.usedspace);
2383
2384 /* the soft quotas 8 bytes uint64_t */
2385 SBIG_UINT(entry,24,qt.softlim);
2386
2387 /* the hard quotas 8 bytes uint64_t */
2388 SBIG_UINT(entry,32,qt.hardlim);
2389
2390 /* and now the SID */
2391 sid_linearize(entry+40, sid_len, &sid);
2392
2393 break;
2394
2395 default:
2396 DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2397 reply_doserror(req, ERRSRV, ERRerror);
2398 return;
2399 break;
2400 }
2401
2402 send_nt_replies(conn, req, nt_status, params, param_len,
2403 pdata, data_len);
2404 }
2405
2406 /****************************************************************************
2407 Reply to set user quota
2408 ****************************************************************************/
2409
2410 static void call_nt_transact_set_user_quota(connection_struct *conn,
2411 struct smb_request *req,
2412 uint16 **ppsetup,
2413 uint32 setup_count,
2414 char **ppparams,
2415 uint32 parameter_count,
2416 char **ppdata,
2417 uint32 data_count,
2418 uint32 max_data_count)
2419 {
2420 char *params = *ppparams;
2421 char *pdata = *ppdata;
2422 int data_len=0,param_len=0;
2423 SMB_NTQUOTA_STRUCT qt;
2424 size_t sid_len;
2425 DOM_SID sid;
2426 files_struct *fsp = NULL;
2427
2428 ZERO_STRUCT(qt);
2429
2430 /* access check */
2431 if (conn->server_info->utok.uid != 0) {
2432 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2433 "[%s]\n", lp_servicename(SNUM(conn)),
2434 conn->server_info->unix_name));
2435 reply_doserror(req, ERRDOS, ERRnoaccess);
2436 return;
2437 }
2438
2439 /*
2440 * Ensure minimum number of parameters sent.
2441 */
2442
2443 if (parameter_count < 2) {
2444 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2445 reply_doserror(req, ERRDOS, ERRinvalidparam);
2446 return;
2447 }
2448
2449 /* maybe we can check the quota_fnum */
2450 fsp = file_fsp(req, SVAL(params,0));
2451 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2452 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2453 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2454 return;
2455 }
2456
2457 if (data_count < 40) {
2458 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2459 reply_doserror(req, ERRDOS, ERRunknownlevel);
2460 return;
2461 }
2462
2463 /* offset to next quota record.
2464 * 4 bytes IVAL(pdata,0)
2465 * unused here...
2466 */
2467
2468 /* sid len */
2469 sid_len = IVAL(pdata,4);
2470
2471 if (data_count < 40+sid_len) {
2472 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2473 reply_doserror(req, ERRDOS, ERRunknownlevel);
2474 return;
2475 }
2476
2477 /* unknown 8 bytes in pdata
2478 * maybe its the change time in NTTIME
2479 */
2480
2481 /* the used space 8 bytes (uint64_t)*/
2482 qt.usedspace = (uint64_t)IVAL(pdata,16);
2483 #ifdef LARGE_SMB_OFF_T
2484 qt.usedspace |= (((uint64_t)IVAL(pdata,20)) << 32);
2485 #else /* LARGE_SMB_OFF_T */
2486 if ((IVAL(pdata,20) != 0)&&
2487 ((qt.usedspace != 0xFFFFFFFF)||
2488 (IVAL(pdata,20)!=0xFFFFFFFF))) {
2489 /* more than 32 bits? */
2490 reply_doserror(req, ERRDOS, ERRunknownlevel);
2491 return;
2492 }
2493 #endif /* LARGE_SMB_OFF_T */
2494
2495 /* the soft quotas 8 bytes (uint64_t)*/
2496 qt.softlim = (uint64_t)IVAL(pdata,24);
2497 #ifdef LARGE_SMB_OFF_T
2498 qt.softlim |= (((uint64_t)IVAL(pdata,28)) << 32);
2499 #else /* LARGE_SMB_OFF_T */
2500 if ((IVAL(pdata,28) != 0)&&
2501 ((qt.softlim != 0xFFFFFFFF)||
2502 (IVAL(pdata,28)!=0xFFFFFFFF))) {
2503 /* more than 32 bits? */
2504 reply_doserror(req, ERRDOS, ERRunknownlevel);
2505 return;
2506 }
2507 #endif /* LARGE_SMB_OFF_T */
2508
2509 /* the hard quotas 8 bytes (uint64_t)*/
2510 qt.hardlim = (uint64_t)IVAL(pdata,32);
2511 #ifdef LARGE_SMB_OFF_T
2512 qt.hardlim |= (((uint64_t)IVAL(pdata,36)) << 32);
2513 #else /* LARGE_SMB_OFF_T */
2514 if ((IVAL(pdata,36) != 0)&&
2515 ((qt.hardlim != 0xFFFFFFFF)||
2516 (IVAL(pdata,36)!=0xFFFFFFFF))) {
2517 /* more than 32 bits? */
2518 reply_doserror(req, ERRDOS, ERRunknownlevel);
2519 return;
2520 }
2521 #endif /* LARGE_SMB_OFF_T */
2522
2523 sid_parse(pdata+40,sid_len,&sid);
2524 DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2525
2526 /* 44 unknown bytes left... */
2527
2528 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2529 reply_doserror(req, ERRSRV, ERRerror);
2530 return;
2531 }
2532
2533 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2534 pdata, data_len);
2535 }
2536 #endif /* HAVE_SYS_QUOTAS */
2537
2538 static void handle_nttrans(connection_struct *conn,
2539 struct trans_state *state,
2540 struct smb_request *req)
2541 {
2542 if (get_Protocol() >= PROTOCOL_NT1) {
2543 req->flags2 |= 0x40; /* IS_LONG_NAME */
2544 SSVAL(req->inbuf,smb_flg2,req->flags2);
2545 }
2546
2547
2548 SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2549
2550 /* Now we must call the relevant NT_TRANS function */
2551 switch(state->call) {
2552 case NT_TRANSACT_CREATE:
2553 {
2554 START_PROFILE(NT_transact_create);
2555 call_nt_transact_create(
2556 conn, req,
2557 &state->setup, state->setup_count,
2558 &state->param, state->total_param,
2559 &state->data, state->total_data,
2560 state->max_data_return);
2561 END_PROFILE(NT_transact_create);
2562 break;
2563 }
2564
2565 case NT_TRANSACT_IOCTL:
2566 {
2567 START_PROFILE(NT_transact_ioctl);
2568 call_nt_transact_ioctl(
2569 conn, req,
2570 &state->setup, state->setup_count,
2571 &state->param, state->total_param,
2572 &state->data, state->total_data,
2573 state->max_data_return);
2574 END_PROFILE(NT_transact_ioctl);
2575 break;
2576 }
2577
2578 case NT_TRANSACT_SET_SECURITY_DESC:
2579 {
2580 START_PROFILE(NT_transact_set_security_desc);
2581 call_nt_transact_set_security_desc(
2582 conn, req,
2583 &state->setup, state->setup_count,
2584 &state->param, state->total_param,
2585 &state->data, state->total_data,
2586 state->max_data_return);
2587 END_PROFILE(NT_transact_set_security_desc);
2588 break;
2589 }
2590
2591 case NT_TRANSACT_NOTIFY_CHANGE:
2592 {
2593 START_PROFILE(NT_transact_notify_change);
2594 call_nt_transact_notify_change(
2595 conn, req,
2596 &state->setup, state->setup_count,
2597 &state->param, state->total_param,
2598 &state->data, state->total_data,
2599 state->max_data_return,
2600 state->max_param_return);
2601 END_PROFILE(NT_transact_notify_change);
2602 break;
2603 }
2604
2605 case NT_TRANSACT_RENAME:
2606 {
2607 START_PROFILE(NT_transact_rename);
2608 call_nt_transact_rename(
2609 conn, req,
2610 &state->setup, state->setup_count,
2611 &state->param, state->total_param,
2612 &state->data, state->total_data,
2613 state->max_data_return);
2614 END_PROFILE(NT_transact_rename);
2615 break;
2616 }
2617
2618 case NT_TRANSACT_QUERY_SECURITY_DESC:
2619 {
2620 START_PROFILE(NT_transact_query_security_desc);
2621 call_nt_transact_query_security_desc(
2622 conn, req,
2623 &state->setup, state->setup_count,
2624 &state->param, state->total_param,
2625 &state->data, state->total_data,
2626 state->max_data_return);
2627 END_PROFILE(NT_transact_query_security_desc);
2628 break;
2629 }
2630
2631 #ifdef HAVE_SYS_QUOTAS
2632 case NT_TRANSACT_GET_USER_QUOTA:
2633 {
2634 START_PROFILE(NT_transact_get_user_quota);
2635 call_nt_transact_get_user_quota(
2636 conn, req,
2637 &state->setup, state->setup_count,
2638 &state->param, state->total_param,
2639 &state->data, state->total_data,
2640 state->max_data_return);
2641 END_PROFILE(NT_transact_get_user_quota);
2642 break;
2643 }
2644
2645 case NT_TRANSACT_SET_USER_QUOTA:
2646 {
2647 START_PROFILE(NT_transact_set_user_quota);
2648 call_nt_transact_set_user_quota(
2649 conn, req,
2650 &state->setup, state->setup_count,
2651 &state->param, state->total_param,
2652 &state->data, state->total_data,
2653 state->max_data_return);
2654 END_PROFILE(NT_transact_set_user_quota);
2655 break;
2656 }
2657 #endif /* HAVE_SYS_QUOTAS */
2658
2659 default:
2660 /* Error in request */
2661 DEBUG(0,("handle_nttrans: Unknown request %d in "
2662 "nttrans call\n", state->call));
2663 reply_doserror(req, ERRSRV, ERRerror);
2664 return;
2665 }
2666 return;
2667 }
2668
2669 /****************************************************************************
2670 Reply to a SMBNTtrans.
2671 ****************************************************************************/
2672
2673 void reply_nttrans(struct smb_request *req)
2674 {
2675 connection_struct *conn = req->conn;
2676 uint32_t pscnt;
2677 uint32_t psoff;
2678 uint32_t dscnt;
2679 uint32_t dsoff;
2680 uint16 function_code;
2681 NTSTATUS result;
2682 struct trans_state *state;
2683
2684 START_PROFILE(SMBnttrans);
2685
2686 if (req->wct < 19) {
2687 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2688 END_PROFILE(SMBnttrans);
2689 return;
2690 }
2691
2692 pscnt = IVAL(req->vwv+9, 1);
2693 psoff = IVAL(req->vwv+11, 1);
2694 dscnt = IVAL(req->vwv+13, 1);
2695 dsoff = IVAL(req->vwv+15, 1);
2696 function_code = SVAL(req->vwv+18, 0);
2697
2698 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2699 reply_doserror(req, ERRSRV, ERRaccess);
2700 END_PROFILE(SMBnttrans);
2701 return;
2702 }
2703
2704 result = allow_new_trans(conn->pending_trans, req->mid);
2705 if (!NT_STATUS_IS_OK(result)) {
2706 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2707 reply_nterror(req, result);
2708 END_PROFILE(SMBnttrans);
2709 return;
2710 }
2711
2712 if ((state = TALLOC_P(conn, struct trans_state)) == NULL) {
2713 reply_doserror(req, ERRSRV, ERRaccess);
2714 END_PROFILE(SMBnttrans);
2715 return;
2716 }
2717
2718 state->cmd = SMBnttrans;
2719
2720 state->mid = req->mid;
2721 state->vuid = req->vuid;
2722 state->total_data = IVAL(req->vwv+3, 1);
2723 state->data = NULL;
2724 state->total_param = IVAL(req->vwv+1, 1);
2725 state->param = NULL;
2726 state->max_data_return = IVAL(req->vwv+7, 1);
2727 state->max_param_return = IVAL(req->vwv+5, 1);
2728
2729 /* setup count is in *words* */
2730 state->setup_count = 2*CVAL(req->vwv+17, 1);
2731 state->setup = NULL;
2732 state->call = function_code;
2733
2734 DEBUG(10, ("num_setup=%u, "
2735 "param_total=%u, this_param=%u, max_param=%u, "
2736 "data_total=%u, this_data=%u, max_data=%u, "
2737 "param_offset=%u, data_offset=%u\n",
2738 (unsigned)state->setup_count,
2739 (unsigned)state->total_param, (unsigned)pscnt,
2740 (unsigned)state->max_param_return,
2741 (unsigned)state->total_data, (unsigned)dscnt,
2742 (unsigned)state->max_data_return,
2743 (unsigned)psoff, (unsigned)dsoff));
2744
2745 /*
2746 * All nttrans messages we handle have smb_wct == 19 +
2747 * state->setup_count. Ensure this is so as a sanity check.
2748 */
2749
2750 if(req->wct != 19 + (state->setup_count/2)) {
2751 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2752 req->wct, 19 + (state->setup_count/2)));
2753 goto bad_param;
2754 }
2755
2756 /* Don't allow more than 128mb for each value. */
2757 if ((state->total_data > (1024*1024*128)) ||
2758 (state->total_param > (1024*1024*128))) {
2759 reply_doserror(req, ERRDOS, ERRnomem);
2760 END_PROFILE(SMBnttrans);
2761 return;
2762 }
2763
2764 if ((dscnt > state->total_data) || (pscnt > state->total_param))
2765 goto bad_param;
2766
2767 if (state->total_data) {
2768
2769 if (trans_oob(state->total_data, 0, dscnt)
2770 || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
2771 goto bad_param;
2772 }
2773
2774 /* Can't use talloc here, the core routines do realloc on the
2775 * params and data. */
2776 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2777 DEBUG(0,("reply_nttrans: data malloc fail for %u "
2778 "bytes !\n", (unsigned int)state->total_data));
2779 TALLOC_FREE(state);
2780 reply_doserror(req, ERRDOS, ERRnomem);
2781 END_PROFILE(SMBnttrans);
2782 return;
2783 }
2784
2785 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2786 }
2787
2788 if (state->total_param) {
2789
2790 if (trans_oob(state->total_param, 0, pscnt)
2791 || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
2792 goto bad_param;
2793 }
2794
2795 /* Can't use talloc here, the core routines do realloc on the
2796 * params and data. */
2797 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2798 DEBUG(0,("reply_nttrans: param malloc fail for %u "
2799 "bytes !\n", (unsigned int)state->total_param));
2800 SAFE_FREE(state->data);
2801 TALLOC_FREE(state);
2802 reply_doserror(req, ERRDOS, ERRnomem);
2803 END_PROFILE(SMBnttrans);
2804 return;
2805 }
2806
2807 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2808 }
2809
2810 state->received_data = dscnt;
2811 state->received_param = pscnt;
2812
2813 if(state->setup_count > 0) {
2814 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2815 state->setup_count));
2816
2817 /*
2818 * No overflow possible here, state->setup_count is an
2819 * unsigned int, being filled by a single byte from
2820 * CVAL(req->vwv+13, 0) above. The cast in the comparison
2821 * below is not necessary, it's here to clarify things. The
2822 * validity of req->vwv and req->wct has been checked in
2823 * init_smb_request already.
2824 */
2825 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
2826 goto bad_param;
2827 }
2828
2829 state->setup = (uint16 *)TALLOC(state, state->setup_count);
2830 if (state->setup == NULL) {
2831 DEBUG(0,("reply_nttrans : Out of memory\n"));
2832 SAFE_FREE(state->data);
2833 SAFE_FREE(state->param);
2834 TALLOC_FREE(state);
2835 reply_doserror(req, ERRDOS, ERRnomem);
2836 END_PROFILE(SMBnttrans);
2837 return;
2838 }
2839
2840 memcpy(state->setup, req->vwv+19, state->setup_count);
2841 dump_data(10, (uint8 *)state->setup, state->setup_count);
2842 }
2843
2844 if ((state->received_data == state->total_data) &&
2845 (state->received_param == state->total_param)) {
2846 handle_nttrans(conn, state, req);
2847 SAFE_FREE(state->param);
2848 SAFE_FREE(state->data);
2849 TALLOC_FREE(state);
2850 END_PROFILE(SMBnttrans);
2851 return;
2852 }
2853
2854 DLIST_ADD(conn->pending_trans, state);
2855
2856 /* We need to send an interim response then receive the rest
2857 of the parameter/data bytes */
2858 reply_outbuf(req, 0, 0);
2859 show_msg((char *)req->outbuf);
2860 END_PROFILE(SMBnttrans);
2861 return;
2862
2863 bad_param:
2864
2865 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2866 SAFE_FREE(state->data);
2867 SAFE_FREE(state->param);
2868 TALLOC_FREE(state);
2869 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2870 END_PROFILE(SMBnttrans);
2871 return;
2872 }
2873
2874 /****************************************************************************
2875 Reply to a SMBnttranss
2876 ****************************************************************************/
2877
2878 void reply_nttranss(struct smb_request *req)
2879 {
2880 connection_struct *conn = req->conn;
2881 uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
2882 struct trans_state *state;
2883
2884 START_PROFILE(SMBnttranss);
2885
2886 show_msg((char *)req->inbuf);
2887
2888 if (req->wct < 18) {
2889 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2890 END_PROFILE(SMBnttranss);
2891 return;
2892 }
2893
2894 for (state = conn->pending_trans; state != NULL;
2895 state = state->next) {
2896 if (state->mid == req->mid) {
2897 break;
2898 }
2899 }
2900
2901 if ((state == NULL) || (state->cmd != SMBnttrans)) {
2902 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2903 END_PROFILE(SMBnttranss);
2904 return;
2905 }
2906
2907 /* Revise state->total_param and state->total_data in case they have
2908 changed downwards */
2909 if (IVAL(req->vwv+1, 1) < state->total_param) {
2910 state->total_param = IVAL(req->vwv+1, 1);
2911 }
2912 if (IVAL(req->vwv+3, 1) < state->total_data) {
2913 state->total_data = IVAL(req->vwv+3, 1);
2914 }
2915
2916 pcnt = IVAL(req->vwv+5, 1);
2917 poff = IVAL(req->vwv+7, 1);
2918 pdisp = IVAL(req->vwv+9, 1);
2919
2920 dcnt = IVAL(req->vwv+11, 1);
2921 doff = IVAL(req->vwv+13, 1);
2922 ddisp = IVAL(req->vwv+15, 1);
2923
2924 state->received_param += pcnt;
2925 state->received_data += dcnt;
2926
2927 if ((state->received_data > state->total_data) ||
2928 (state->received_param > state->total_param))
2929 goto bad_param;
2930
2931 if (pcnt) {
2932 if (trans_oob(state->total_param, pdisp, pcnt)
2933 || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
2934 goto bad_param;
2935 }
2936 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
2937 }
2938
2939 if (dcnt) {
2940 if (trans_oob(state->total_data, ddisp, dcnt)
2941 || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
2942 goto bad_param;
2943 }
2944 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
2945 }
2946
2947 if ((state->received_param < state->total_param) ||
2948 (state->received_data < state->total_data)) {
2949 END_PROFILE(SMBnttranss);
2950 return;
2951 }
2952
2953 handle_nttrans(conn, state, req);
2954
2955 DLIST_REMOVE(conn->pending_trans, state);
2956 SAFE_FREE(state->data);
2957 SAFE_FREE(state->param);
2958 TALLOC_FREE(state);
2959 END_PROFILE(SMBnttranss);
2960 return;
2961
2962 bad_param:
2963
2964 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
2965 DLIST_REMOVE(conn->pending_trans, state);
2966 SAFE_FREE(state->data);
2967 SAFE_FREE(state->param);
2968 TALLOC_FREE(state);
2969 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2970 END_PROFILE(SMBnttranss);
2971 return;
2972 }
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