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First part of fix for bug #8673 - NT ACL issue.
[Samba.git] / source3 / smbd / nttrans.c
blobddabdda4d6e7b9c54b1d5284cdd5011b7ad3ed22
1 /*
2 Unix SMB/CIFS implementation.
3 SMB NT transaction handling
4 Copyright (C) Jeremy Allison 1994-2007
5 Copyright (C) Stefan (metze) Metzmacher 2003
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
19 */
20
21 #include "includes.h"
22 #include "system/filesys.h"
23 #include "smbd/smbd.h"
24 #include "smbd/globals.h"
25 #include "fake_file.h"
26 #include "../libcli/security/security.h"
27 #include "../librpc/gen_ndr/ndr_security.h"
28 #include "passdb/lookup_sid.h"
29 #include "auth.h"
30 #include "smbprofile.h"
31 #include "libsmb/libsmb.h"
32
33 extern const struct generic_mapping file_generic_mapping;
34
35 static char *nttrans_realloc(char **ptr, size_t size)
36 {
37 if (ptr==NULL) {
38 smb_panic("nttrans_realloc() called with NULL ptr");
39 }
40
41 *ptr = (char *)SMB_REALLOC(*ptr, size);
42 if(*ptr == NULL) {
43 return NULL;
44 }
45 memset(*ptr,'\0',size);
46 return *ptr;
47 }
48
49 /****************************************************************************
50 Send the required number of replies back.
51 We assume all fields other than the data fields are
52 set correctly for the type of call.
53 HACK ! Always assumes smb_setup field is zero.
54 ****************************************************************************/
55
56 static void send_nt_replies(connection_struct *conn,
57 struct smb_request *req, NTSTATUS nt_error,
58 char *params, int paramsize,
59 char *pdata, int datasize)
60 {
61 int data_to_send = datasize;
62 int params_to_send = paramsize;
63 int useable_space;
64 char *pp = params;
65 char *pd = pdata;
66 int params_sent_thistime, data_sent_thistime, total_sent_thistime;
67 int alignment_offset = 1;
68 int data_alignment_offset = 0;
69 struct smbd_server_connection *sconn = req->sconn;
70 int max_send = sconn->smb1.sessions.max_send;
71
72 /*
73 * If there genuinely are no parameters or data to send just send
74 * the empty packet.
75 */
76
77 if(params_to_send == 0 && data_to_send == 0) {
78 reply_outbuf(req, 18, 0);
79 if (NT_STATUS_V(nt_error)) {
80 error_packet_set((char *)req->outbuf,
81 0, 0, nt_error,
82 __LINE__,__FILE__);
83 }
84 show_msg((char *)req->outbuf);
85 if (!srv_send_smb(sconn,
86 (char *)req->outbuf,
87 true, req->seqnum+1,
88 IS_CONN_ENCRYPTED(conn),
89 &req->pcd)) {
90 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
91 }
92 TALLOC_FREE(req->outbuf);
93 return;
94 }
95
96 /*
97 * When sending params and data ensure that both are nicely aligned.
98 * Only do this alignment when there is also data to send - else
99 * can cause NT redirector problems.
100 */
101
102 if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
103 data_alignment_offset = 4 - (params_to_send % 4);
104 }
105
106 /*
107 * Space is bufsize minus Netbios over TCP header minus SMB header.
108 * The alignment_offset is to align the param bytes on a four byte
109 * boundary (2 bytes for data len, one byte pad).
110 * NT needs this to work correctly.
111 */
112
113 useable_space = max_send - (smb_size
114 + 2 * 18 /* wct */
115 + alignment_offset
116 + data_alignment_offset);
117
118 if (useable_space < 0) {
119 char *msg = talloc_asprintf(
120 talloc_tos(),
121 "send_nt_replies failed sanity useable_space = %d!!!",
122 useable_space);
123 DEBUG(0, ("%s\n", msg));
124 exit_server_cleanly(msg);
125 }
126
127 while (params_to_send || data_to_send) {
128
129 /*
130 * Calculate whether we will totally or partially fill this packet.
131 */
132
133 total_sent_thistime = params_to_send + data_to_send;
134
135 /*
136 * We can never send more than useable_space.
137 */
138
139 total_sent_thistime = MIN(total_sent_thistime, useable_space);
140
141 reply_outbuf(req, 18,
142 total_sent_thistime + alignment_offset
143 + data_alignment_offset);
144
145 /*
146 * We might have had SMBnttranss in req->inbuf, fix that.
147 */
148 SCVAL(req->outbuf, smb_com, SMBnttrans);
149
150 /*
151 * Set total params and data to be sent.
152 */
153
154 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
155 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
156
157 /*
158 * Calculate how many parameters and data we can fit into
159 * this packet. Parameters get precedence.
160 */
161
162 params_sent_thistime = MIN(params_to_send,useable_space);
163 data_sent_thistime = useable_space - params_sent_thistime;
164 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
165
166 SIVAL(req->outbuf, smb_ntr_ParameterCount,
167 params_sent_thistime);
168
169 if(params_sent_thistime == 0) {
170 SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
171 SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
172 } else {
173 /*
174 * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
175 * parameter bytes, however the first 4 bytes of outbuf are
176 * the Netbios over TCP header. Thus use smb_base() to subtract
177 * them from the calculation.
178 */
179
180 SIVAL(req->outbuf,smb_ntr_ParameterOffset,
181 ((smb_buf(req->outbuf)+alignment_offset)
182 - smb_base(req->outbuf)));
183 /*
184 * Absolute displacement of param bytes sent in this packet.
185 */
186
187 SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
188 pp - params);
189 }
190
191 /*
192 * Deal with the data portion.
193 */
194
195 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
196
197 if(data_sent_thistime == 0) {
198 SIVAL(req->outbuf,smb_ntr_DataOffset,0);
199 SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
200 } else {
201 /*
202 * The offset of the data bytes is the offset of the
203 * parameter bytes plus the number of parameters being sent this time.
204 */
205
206 SIVAL(req->outbuf, smb_ntr_DataOffset,
207 ((smb_buf(req->outbuf)+alignment_offset) -
208 smb_base(req->outbuf))
209 + params_sent_thistime + data_alignment_offset);
210 SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
211 }
212
213 /*
214 * Copy the param bytes into the packet.
215 */
216
217 if(params_sent_thistime) {
218 if (alignment_offset != 0) {
219 memset(smb_buf(req->outbuf), 0,
220 alignment_offset);
221 }
222 memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
223 params_sent_thistime);
224 }
225
226 /*
227 * Copy in the data bytes
228 */
229
230 if(data_sent_thistime) {
231 if (data_alignment_offset != 0) {
232 memset((smb_buf(req->outbuf)+alignment_offset+
233 params_sent_thistime), 0,
234 data_alignment_offset);
235 }
236 memcpy(smb_buf(req->outbuf)+alignment_offset
237 +params_sent_thistime+data_alignment_offset,
238 pd,data_sent_thistime);
239 }
240
241 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
242 params_sent_thistime, data_sent_thistime, useable_space));
243 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
244 params_to_send, data_to_send, paramsize, datasize));
245
246 if (NT_STATUS_V(nt_error)) {
247 error_packet_set((char *)req->outbuf,
248 0, 0, nt_error,
249 __LINE__,__FILE__);
250 }
251
252 /* Send the packet */
253 show_msg((char *)req->outbuf);
254 if (!srv_send_smb(sconn,
255 (char *)req->outbuf,
256 true, req->seqnum+1,
257 IS_CONN_ENCRYPTED(conn),
258 &req->pcd)) {
259 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
260 }
261
262 TALLOC_FREE(req->outbuf);
263
264 pp += params_sent_thistime;
265 pd += data_sent_thistime;
266
267 params_to_send -= params_sent_thistime;
268 data_to_send -= data_sent_thistime;
269
270 /*
271 * Sanity check
272 */
273
274 if(params_to_send < 0 || data_to_send < 0) {
275 DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
276 params_to_send, data_to_send));
277 exit_server_cleanly("send_nt_replies: internal error");
278 }
279 }
280 }
281
282 /****************************************************************************
283 Reply to an NT create and X call on a pipe
284 ****************************************************************************/
285
286 static void nt_open_pipe(char *fname, connection_struct *conn,
287 struct smb_request *req, int *ppnum)
288 {
289 files_struct *fsp;
290 NTSTATUS status;
291
292 DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
293
294 /* Strip \\ off the name. */
295 fname++;
296
297 status = open_np_file(req, fname, &fsp);
298 if (!NT_STATUS_IS_OK(status)) {
299 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
300 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
301 ERRDOS, ERRbadpipe);
302 return;
303 }
304 reply_nterror(req, status);
305 return;
306 }
307
308 *ppnum = fsp->fnum;
309 return;
310 }
311
312 /****************************************************************************
313 Reply to an NT create and X call for pipes.
314 ****************************************************************************/
315
316 static void do_ntcreate_pipe_open(connection_struct *conn,
317 struct smb_request *req)
318 {
319 char *fname = NULL;
320 int pnum = -1;
321 char *p = NULL;
322 uint32 flags = IVAL(req->vwv+3, 1);
323 TALLOC_CTX *ctx = talloc_tos();
324
325 srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
326
327 if (!fname) {
328 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
329 ERRDOS, ERRbadpipe);
330 return;
331 }
332 nt_open_pipe(fname, conn, req, &pnum);
333
334 if (req->outbuf) {
335 /* error reply */
336 return;
337 }
338
339 /*
340 * Deal with pipe return.
341 */
342
343 if (flags & EXTENDED_RESPONSE_REQUIRED) {
344 /* This is very strange. We
345 * return 50 words, but only set
346 * the wcnt to 42 ? It's definately
347 * what happens on the wire....
348 */
349 reply_outbuf(req, 50, 0);
350 SCVAL(req->outbuf,smb_wct,42);
351 } else {
352 reply_outbuf(req, 34, 0);
353 }
354
355 p = (char *)req->outbuf + smb_vwv2;
356 p++;
357 SSVAL(p,0,pnum);
358 p += 2;
359 SIVAL(p,0,FILE_WAS_OPENED);
360 p += 4;
361 p += 32;
362 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
363 p += 20;
364 /* File type. */
365 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
366 /* Device state. */
367 SSVAL(p,2, 0x5FF); /* ? */
368 p += 4;
369
370 if (flags & EXTENDED_RESPONSE_REQUIRED) {
371 p += 25;
372 SIVAL(p,0,FILE_GENERIC_ALL);
373 /*
374 * For pipes W2K3 seems to return
375 * 0x12019B next.
376 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
377 */
378 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
379 }
380
381 DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
382
383 chain_reply(req);
384 }
385
386 struct case_semantics_state {
387 connection_struct *conn;
388 bool case_sensitive;
389 bool case_preserve;
390 bool short_case_preserve;
391 };
392
393 /****************************************************************************
394 Restore case semantics.
395 ****************************************************************************/
396
397 static int restore_case_semantics(struct case_semantics_state *state)
398 {
399 state->conn->case_sensitive = state->case_sensitive;
400 state->conn->case_preserve = state->case_preserve;
401 state->conn->short_case_preserve = state->short_case_preserve;
402 return 0;
403 }
404
405 /****************************************************************************
406 Save case semantics.
407 ****************************************************************************/
408
409 static struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx,
410 connection_struct *conn)
411 {
412 struct case_semantics_state *result;
413
414 if (!(result = talloc(mem_ctx, struct case_semantics_state))) {
415 return NULL;
416 }
417
418 result->conn = conn;
419 result->case_sensitive = conn->case_sensitive;
420 result->case_preserve = conn->case_preserve;
421 result->short_case_preserve = conn->short_case_preserve;
422
423 /* Set to POSIX. */
424 conn->case_sensitive = True;
425 conn->case_preserve = True;
426 conn->short_case_preserve = True;
427
428 talloc_set_destructor(result, restore_case_semantics);
429
430 return result;
431 }
432
433 /****************************************************************************
434 Reply to an NT create and X call.
435 ****************************************************************************/
436
437 void reply_ntcreate_and_X(struct smb_request *req)
438 {
439 connection_struct *conn = req->conn;
440 struct smb_filename *smb_fname = NULL;
441 char *fname = NULL;
442 uint32 flags;
443 uint32 access_mask;
444 uint32 file_attributes;
445 uint32 share_access;
446 uint32 create_disposition;
447 uint32 create_options;
448 uint16 root_dir_fid;
449 uint64_t allocation_size;
450 /* Breakout the oplock request bits so we can set the
451 reply bits separately. */
452 uint32 fattr=0;
453 SMB_OFF_T file_len = 0;
454 int info = 0;
455 files_struct *fsp = NULL;
456 char *p = NULL;
457 struct timespec create_timespec;
458 struct timespec c_timespec;
459 struct timespec a_timespec;
460 struct timespec m_timespec;
461 struct timespec write_time_ts;
462 NTSTATUS status;
463 int oplock_request;
464 uint8_t oplock_granted = NO_OPLOCK_RETURN;
465 struct case_semantics_state *case_state = NULL;
466 TALLOC_CTX *ctx = talloc_tos();
467
468 START_PROFILE(SMBntcreateX);
469
470 if (req->wct < 24) {
471 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
472 goto out;
473 }
474
475 flags = IVAL(req->vwv+3, 1);
476 access_mask = IVAL(req->vwv+7, 1);
477 file_attributes = IVAL(req->vwv+13, 1);
478 share_access = IVAL(req->vwv+15, 1);
479 create_disposition = IVAL(req->vwv+17, 1);
480 create_options = IVAL(req->vwv+19, 1);
481 root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
482
483 allocation_size = BVAL(req->vwv+9, 1);
484
485 srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
486 STR_TERMINATE, &status);
487
488 if (!NT_STATUS_IS_OK(status)) {
489 reply_nterror(req, status);
490 goto out;
491 }
492
493 DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
494 "file_attributes = 0x%x, share_access = 0x%x, "
495 "create_disposition = 0x%x create_options = 0x%x "
496 "root_dir_fid = 0x%x, fname = %s\n",
497 (unsigned int)flags,
498 (unsigned int)access_mask,
499 (unsigned int)file_attributes,
500 (unsigned int)share_access,
501 (unsigned int)create_disposition,
502 (unsigned int)create_options,
503 (unsigned int)root_dir_fid,
504 fname));
505
506 /*
507 * we need to remove ignored bits when they come directly from the client
508 * because we reuse some of them for internal stuff
509 */
510 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
511
512 /*
513 * If it's an IPC, use the pipe handler.
514 */
515
516 if (IS_IPC(conn)) {
517 if (lp_nt_pipe_support()) {
518 do_ntcreate_pipe_open(conn, req);
519 goto out;
520 }
521 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
522 goto out;
523 }
524
525 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
526 if (oplock_request) {
527 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
528 ? BATCH_OPLOCK : 0;
529 }
530
531 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
532 case_state = set_posix_case_semantics(ctx, conn);
533 if (!case_state) {
534 reply_nterror(req, NT_STATUS_NO_MEMORY);
535 goto out;
536 }
537 }
538
539 status = filename_convert(ctx,
540 conn,
541 req->flags2 & FLAGS2_DFS_PATHNAMES,
542 fname,
543 0,
544 NULL,
545 &smb_fname);
546
547 TALLOC_FREE(case_state);
548
549 if (!NT_STATUS_IS_OK(status)) {
550 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
551 reply_botherror(req,
552 NT_STATUS_PATH_NOT_COVERED,
553 ERRSRV, ERRbadpath);
554 goto out;
555 }
556 reply_nterror(req, status);
557 goto out;
558 }
559
560 /*
561 * Bug #6898 - clients using Windows opens should
562 * never be able to set this attribute into the
563 * VFS.
564 */
565 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
566
567 status = SMB_VFS_CREATE_FILE(
568 conn, /* conn */
569 req, /* req */
570 root_dir_fid, /* root_dir_fid */
571 smb_fname, /* fname */
572 access_mask, /* access_mask */
573 share_access, /* share_access */
574 create_disposition, /* create_disposition*/
575 create_options, /* create_options */
576 file_attributes, /* file_attributes */
577 oplock_request, /* oplock_request */
578 allocation_size, /* allocation_size */
579 0, /* private_flags */
580 NULL, /* sd */
581 NULL, /* ea_list */
582 &fsp, /* result */
583 &info); /* pinfo */
584
585 if (!NT_STATUS_IS_OK(status)) {
586 if (open_was_deferred(req->sconn, req->mid)) {
587 /* We have re-scheduled this call, no error. */
588 goto out;
589 }
590 reply_openerror(req, status);
591 goto out;
592 }
593
594 /* Ensure we're pointing at the correct stat struct. */
595 TALLOC_FREE(smb_fname);
596 smb_fname = fsp->fsp_name;
597
598 /*
599 * If the caller set the extended oplock request bit
600 * and we granted one (by whatever means) - set the
601 * correct bit for extended oplock reply.
602 */
603
604 if (oplock_request &&
605 (lp_fake_oplocks(SNUM(conn))
606 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
607
608 /*
609 * Exclusive oplock granted
610 */
611
612 if (flags & REQUEST_BATCH_OPLOCK) {
613 oplock_granted = BATCH_OPLOCK_RETURN;
614 } else {
615 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
616 }
617 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
618 oplock_granted = LEVEL_II_OPLOCK_RETURN;
619 } else {
620 oplock_granted = NO_OPLOCK_RETURN;
621 }
622
623 file_len = smb_fname->st.st_ex_size;
624
625 if (flags & EXTENDED_RESPONSE_REQUIRED) {
626 /* This is very strange. We
627 * return 50 words, but only set
628 * the wcnt to 42 ? It's definately
629 * what happens on the wire....
630 */
631 reply_outbuf(req, 50, 0);
632 SCVAL(req->outbuf,smb_wct,42);
633 } else {
634 reply_outbuf(req, 34, 0);
635 }
636
637 p = (char *)req->outbuf + smb_vwv2;
638
639 SCVAL(p, 0, oplock_granted);
640
641 p++;
642 SSVAL(p,0,fsp->fnum);
643 p += 2;
644 if ((create_disposition == FILE_SUPERSEDE)
645 && (info == FILE_WAS_OVERWRITTEN)) {
646 SIVAL(p,0,FILE_WAS_SUPERSEDED);
647 } else {
648 SIVAL(p,0,info);
649 }
650 p += 4;
651
652 fattr = dos_mode(conn, smb_fname);
653 if (fattr == 0) {
654 fattr = FILE_ATTRIBUTE_NORMAL;
655 }
656
657 /* Deal with other possible opens having a modified
658 write time. JRA. */
659 ZERO_STRUCT(write_time_ts);
660 get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
661 if (!null_timespec(write_time_ts)) {
662 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
663 }
664
665 /* Create time. */
666 create_timespec = get_create_timespec(conn, fsp, smb_fname);
667 a_timespec = smb_fname->st.st_ex_atime;
668 m_timespec = smb_fname->st.st_ex_mtime;
669 c_timespec = get_change_timespec(conn, fsp, smb_fname);
670
671 if (lp_dos_filetime_resolution(SNUM(conn))) {
672 dos_filetime_timespec(&create_timespec);
673 dos_filetime_timespec(&a_timespec);
674 dos_filetime_timespec(&m_timespec);
675 dos_filetime_timespec(&c_timespec);
676 }
677
678 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
679 p += 8;
680 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
681 p += 8;
682 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
683 p += 8;
684 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
685 p += 8;
686 SIVAL(p,0,fattr); /* File Attributes. */
687 p += 4;
688 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
689 p += 8;
690 SOFF_T(p,0,file_len);
691 p += 8;
692 if (flags & EXTENDED_RESPONSE_REQUIRED) {
693 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
694 size_t num_names = 0;
695 unsigned int num_streams = 0;
696 struct stream_struct *streams = NULL;
697
698 /* Do we have any EA's ? */
699 status = get_ea_names_from_file(ctx, conn, fsp,
700 smb_fname->base_name, NULL, &num_names);
701 if (NT_STATUS_IS_OK(status) && num_names) {
702 file_status &= ~NO_EAS;
703 }
704 status = vfs_streaminfo(conn, NULL, smb_fname->base_name, ctx,
705 &num_streams, &streams);
706 /* There is always one stream, ::$DATA. */
707 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
708 file_status &= ~NO_SUBSTREAMS;
709 }
710 TALLOC_FREE(streams);
711 SSVAL(p,2,file_status);
712 }
713 p += 4;
714 SCVAL(p,0,fsp->is_directory ? 1 : 0);
715
716 if (flags & EXTENDED_RESPONSE_REQUIRED) {
717 uint32 perms = 0;
718 p += 25;
719 if (fsp->is_directory ||
720 can_write_to_file(conn, smb_fname)) {
721 perms = FILE_GENERIC_ALL;
722 } else {
723 perms = FILE_GENERIC_READ|FILE_EXECUTE;
724 }
725 SIVAL(p,0,perms);
726 }
727
728 DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
729 fsp->fnum, smb_fname_str_dbg(smb_fname)));
730
731 chain_reply(req);
732 out:
733 END_PROFILE(SMBntcreateX);
734 return;
735 }
736
737 /****************************************************************************
738 Reply to a NT_TRANSACT_CREATE call to open a pipe.
739 ****************************************************************************/
740
741 static void do_nt_transact_create_pipe(connection_struct *conn,
742 struct smb_request *req,
743 uint16 **ppsetup, uint32 setup_count,
744 char **ppparams, uint32 parameter_count,
745 char **ppdata, uint32 data_count)
746 {
747 char *fname = NULL;
748 char *params = *ppparams;
749 int pnum = -1;
750 char *p = NULL;
751 NTSTATUS status;
752 size_t param_len;
753 uint32 flags;
754 TALLOC_CTX *ctx = talloc_tos();
755
756 /*
757 * Ensure minimum number of parameters sent.
758 */
759
760 if(parameter_count < 54) {
761 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
762 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
763 return;
764 }
765
766 flags = IVAL(params,0);
767
768 srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
769 parameter_count-53, STR_TERMINATE,
770 &status);
771 if (!NT_STATUS_IS_OK(status)) {
772 reply_nterror(req, status);
773 return;
774 }
775
776 nt_open_pipe(fname, conn, req, &pnum);
777
778 if (req->outbuf) {
779 /* Error return */
780 return;
781 }
782
783 /* Realloc the size of parameters and data we will return */
784 if (flags & EXTENDED_RESPONSE_REQUIRED) {
785 /* Extended response is 32 more byyes. */
786 param_len = 101;
787 } else {
788 param_len = 69;
789 }
790 params = nttrans_realloc(ppparams, param_len);
791 if(params == NULL) {
792 reply_nterror(req, NT_STATUS_NO_MEMORY);
793 return;
794 }
795
796 p = params;
797 SCVAL(p,0,NO_OPLOCK_RETURN);
798
799 p += 2;
800 SSVAL(p,0,pnum);
801 p += 2;
802 SIVAL(p,0,FILE_WAS_OPENED);
803 p += 8;
804
805 p += 32;
806 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
807 p += 20;
808 /* File type. */
809 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
810 /* Device state. */
811 SSVAL(p,2, 0x5FF); /* ? */
812 p += 4;
813
814 if (flags & EXTENDED_RESPONSE_REQUIRED) {
815 p += 25;
816 SIVAL(p,0,FILE_GENERIC_ALL);
817 /*
818 * For pipes W2K3 seems to return
819 * 0x12019B next.
820 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
821 */
822 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
823 }
824
825 DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
826
827 /* Send the required number of replies */
828 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
829
830 return;
831 }
832
833 /****************************************************************************
834 Internal fn to set security descriptors.
835 ****************************************************************************/
836
837 NTSTATUS set_sd(files_struct *fsp, uint8_t *data, uint32_t sd_len,
838 uint32_t security_info_sent)
839 {
840 struct security_descriptor *psd = NULL;
841 NTSTATUS status;
842
843 if (sd_len == 0) {
844 return NT_STATUS_INVALID_PARAMETER;
845 }
846
847 if (!CAN_WRITE(fsp->conn)) {
848 return NT_STATUS_ACCESS_DENIED;
849 }
850
851 if (!lp_nt_acl_support(SNUM(fsp->conn))) {
852 return NT_STATUS_OK;
853 }
854
855 status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
856
857 if (!NT_STATUS_IS_OK(status)) {
858 return status;
859 }
860
861 if (psd->owner_sid == NULL) {
862 security_info_sent &= ~SECINFO_OWNER;
863 }
864 if (psd->group_sid == NULL) {
865 security_info_sent &= ~SECINFO_GROUP;
866 }
867
868 /* Ensure we have at least one thing set. */
869 if ((security_info_sent & (SECINFO_OWNER|SECINFO_GROUP|SECINFO_DACL|SECINFO_SACL)) == 0) {
870 if (security_info_sent & SECINFO_LABEL) {
871 /* Only consider SECINFO_LABEL if no other
872 bits are set. Just like W2K3 we don't
873 store this. */
874 return NT_STATUS_OK;
875 }
876 return NT_STATUS_INVALID_PARAMETER;
877 }
878
879 /* Ensure we have the rights to do this. */
880 if (security_info_sent & SECINFO_OWNER) {
881 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
882 return NT_STATUS_ACCESS_DENIED;
883 }
884 }
885
886 if (security_info_sent & SECINFO_GROUP) {
887 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
888 return NT_STATUS_ACCESS_DENIED;
889 }
890 }
891
892 if (security_info_sent & SECINFO_DACL) {
893 if (!(fsp->access_mask & SEC_STD_WRITE_DAC)) {
894 return NT_STATUS_ACCESS_DENIED;
895 }
896 /* Convert all the generic bits. */
897 if (psd->dacl) {
898 security_acl_map_generic(psd->dacl, &file_generic_mapping);
899 }
900 }
901
902 if (security_info_sent & SECINFO_SACL) {
903 if (!(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
904 return NT_STATUS_ACCESS_DENIED;
905 }
906 /* Convert all the generic bits. */
907 if (psd->sacl) {
908 security_acl_map_generic(psd->sacl, &file_generic_mapping);
909 }
910 }
911
912 if (DEBUGLEVEL >= 10) {
913 DEBUG(10,("set_sd for file %s\n", fsp_str_dbg(fsp)));
914 NDR_PRINT_DEBUG(security_descriptor, psd);
915 }
916
917 status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
918
919 TALLOC_FREE(psd);
920
921 return status;
922 }
923
924 /****************************************************************************
925 Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
926 ****************************************************************************/
927
928 struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
929 {
930 struct ea_list *ea_list_head = NULL;
931 size_t offset = 0;
932
933 if (data_size < 4) {
934 return NULL;
935 }
936
937 while (offset + 4 <= data_size) {
938 size_t next_offset = IVAL(pdata,offset);
939 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
940
941 if (!eal) {
942 return NULL;
943 }
944
945 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
946 if (next_offset == 0) {
947 break;
948 }
949 offset += next_offset;
950 }
951
952 return ea_list_head;
953 }
954
955 /****************************************************************************
956 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
957 ****************************************************************************/
958
959 static void call_nt_transact_create(connection_struct *conn,
960 struct smb_request *req,
961 uint16 **ppsetup, uint32 setup_count,
962 char **ppparams, uint32 parameter_count,
963 char **ppdata, uint32 data_count,
964 uint32 max_data_count)
965 {
966 struct smb_filename *smb_fname = NULL;
967 char *fname = NULL;
968 char *params = *ppparams;
969 char *data = *ppdata;
970 /* Breakout the oplock request bits so we can set the reply bits separately. */
971 uint32 fattr=0;
972 SMB_OFF_T file_len = 0;
973 int info = 0;
974 files_struct *fsp = NULL;
975 char *p = NULL;
976 uint32 flags;
977 uint32 access_mask;
978 uint32 file_attributes;
979 uint32 share_access;
980 uint32 create_disposition;
981 uint32 create_options;
982 uint32 sd_len;
983 struct security_descriptor *sd = NULL;
984 uint32 ea_len;
985 uint16 root_dir_fid;
986 struct timespec create_timespec;
987 struct timespec c_timespec;
988 struct timespec a_timespec;
989 struct timespec m_timespec;
990 struct timespec write_time_ts;
991 struct ea_list *ea_list = NULL;
992 NTSTATUS status;
993 size_t param_len;
994 uint64_t allocation_size;
995 int oplock_request;
996 uint8_t oplock_granted;
997 struct case_semantics_state *case_state = NULL;
998 TALLOC_CTX *ctx = talloc_tos();
999
1000 DEBUG(5,("call_nt_transact_create\n"));
1001
1002 /*
1003 * If it's an IPC, use the pipe handler.
1004 */
1005
1006 if (IS_IPC(conn)) {
1007 if (lp_nt_pipe_support()) {
1008 do_nt_transact_create_pipe(
1009 conn, req,
1010 ppsetup, setup_count,
1011 ppparams, parameter_count,
1012 ppdata, data_count);
1013 goto out;
1014 }
1015 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1016 goto out;
1017 }
1018
1019 /*
1020 * Ensure minimum number of parameters sent.
1021 */
1022
1023 if(parameter_count < 54) {
1024 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1025 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1026 goto out;
1027 }
1028
1029 flags = IVAL(params,0);
1030 access_mask = IVAL(params,8);
1031 file_attributes = IVAL(params,20);
1032 share_access = IVAL(params,24);
1033 create_disposition = IVAL(params,28);
1034 create_options = IVAL(params,32);
1035 sd_len = IVAL(params,36);
1036 ea_len = IVAL(params,40);
1037 root_dir_fid = (uint16)IVAL(params,4);
1038 allocation_size = BVAL(params,12);
1039
1040 /*
1041 * we need to remove ignored bits when they come directly from the client
1042 * because we reuse some of them for internal stuff
1043 */
1044 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
1045
1046 /* Ensure the data_len is correct for the sd and ea values given. */
1047 if ((ea_len + sd_len > data_count)
1048 || (ea_len > data_count) || (sd_len > data_count)
1049 || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
1050 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
1051 "%u, data_count = %u\n", (unsigned int)ea_len,
1052 (unsigned int)sd_len, (unsigned int)data_count));
1053 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1054 goto out;
1055 }
1056
1057 if (sd_len) {
1058 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
1059 sd_len));
1060
1061 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
1062 &sd);
1063 if (!NT_STATUS_IS_OK(status)) {
1064 DEBUG(10, ("call_nt_transact_create: "
1065 "unmarshall_sec_desc failed: %s\n",
1066 nt_errstr(status)));
1067 reply_nterror(req, status);
1068 goto out;
1069 }
1070 }
1071
1072 if (ea_len) {
1073 if (!lp_ea_support(SNUM(conn))) {
1074 DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
1075 "EA's not supported.\n",
1076 (unsigned int)ea_len));
1077 reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
1078 goto out;
1079 }
1080
1081 if (ea_len < 10) {
1082 DEBUG(10,("call_nt_transact_create - ea_len = %u - "
1083 "too small (should be more than 10)\n",
1084 (unsigned int)ea_len ));
1085 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1086 goto out;
1087 }
1088
1089 /* We have already checked that ea_len <= data_count here. */
1090 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
1091 ea_len);
1092 if (ea_list == NULL) {
1093 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1094 goto out;
1095 }
1096 }
1097
1098 srvstr_get_path(ctx, params, req->flags2, &fname,
1099 params+53, parameter_count-53,
1100 STR_TERMINATE, &status);
1101 if (!NT_STATUS_IS_OK(status)) {
1102 reply_nterror(req, status);
1103 goto out;
1104 }
1105
1106 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
1107 case_state = set_posix_case_semantics(ctx, conn);
1108 if (!case_state) {
1109 reply_nterror(req, NT_STATUS_NO_MEMORY);
1110 goto out;
1111 }
1112 }
1113
1114 status = filename_convert(ctx,
1115 conn,
1116 req->flags2 & FLAGS2_DFS_PATHNAMES,
1117 fname,
1118 0,
1119 NULL,
1120 &smb_fname);
1121
1122 TALLOC_FREE(case_state);
1123
1124 if (!NT_STATUS_IS_OK(status)) {
1125 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1126 reply_botherror(req,
1127 NT_STATUS_PATH_NOT_COVERED,
1128 ERRSRV, ERRbadpath);
1129 goto out;
1130 }
1131 reply_nterror(req, status);
1132 goto out;
1133 }
1134
1135 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1136 if (oplock_request) {
1137 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1138 ? BATCH_OPLOCK : 0;
1139 }
1140
1141 /*
1142 * Bug #6898 - clients using Windows opens should
1143 * never be able to set this attribute into the
1144 * VFS.
1145 */
1146 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
1147
1148 status = SMB_VFS_CREATE_FILE(
1149 conn, /* conn */
1150 req, /* req */
1151 root_dir_fid, /* root_dir_fid */
1152 smb_fname, /* fname */
1153 access_mask, /* access_mask */
1154 share_access, /* share_access */
1155 create_disposition, /* create_disposition*/
1156 create_options, /* create_options */
1157 file_attributes, /* file_attributes */
1158 oplock_request, /* oplock_request */
1159 allocation_size, /* allocation_size */
1160 0, /* private_flags */
1161 sd, /* sd */
1162 ea_list, /* ea_list */
1163 &fsp, /* result */
1164 &info); /* pinfo */
1165
1166 if(!NT_STATUS_IS_OK(status)) {
1167 if (open_was_deferred(req->sconn, req->mid)) {
1168 /* We have re-scheduled this call, no error. */
1169 return;
1170 }
1171 reply_openerror(req, status);
1172 goto out;
1173 }
1174
1175 /* Ensure we're pointing at the correct stat struct. */
1176 TALLOC_FREE(smb_fname);
1177 smb_fname = fsp->fsp_name;
1178
1179 /*
1180 * If the caller set the extended oplock request bit
1181 * and we granted one (by whatever means) - set the
1182 * correct bit for extended oplock reply.
1183 */
1184
1185 if (oplock_request &&
1186 (lp_fake_oplocks(SNUM(conn))
1187 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1188
1189 /*
1190 * Exclusive oplock granted
1191 */
1192
1193 if (flags & REQUEST_BATCH_OPLOCK) {
1194 oplock_granted = BATCH_OPLOCK_RETURN;
1195 } else {
1196 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1197 }
1198 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1199 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1200 } else {
1201 oplock_granted = NO_OPLOCK_RETURN;
1202 }
1203
1204 file_len = smb_fname->st.st_ex_size;
1205
1206 /* Realloc the size of parameters and data we will return */
1207 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1208 /* Extended response is 32 more byyes. */
1209 param_len = 101;
1210 } else {
1211 param_len = 69;
1212 }
1213 params = nttrans_realloc(ppparams, param_len);
1214 if(params == NULL) {
1215 reply_nterror(req, NT_STATUS_NO_MEMORY);
1216 goto out;
1217 }
1218
1219 p = params;
1220 SCVAL(p, 0, oplock_granted);
1221
1222 p += 2;
1223 SSVAL(p,0,fsp->fnum);
1224 p += 2;
1225 if ((create_disposition == FILE_SUPERSEDE)
1226 && (info == FILE_WAS_OVERWRITTEN)) {
1227 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1228 } else {
1229 SIVAL(p,0,info);
1230 }
1231 p += 8;
1232
1233 fattr = dos_mode(conn, smb_fname);
1234 if (fattr == 0) {
1235 fattr = FILE_ATTRIBUTE_NORMAL;
1236 }
1237
1238 /* Deal with other possible opens having a modified
1239 write time. JRA. */
1240 ZERO_STRUCT(write_time_ts);
1241 get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
1242 if (!null_timespec(write_time_ts)) {
1243 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
1244 }
1245
1246 /* Create time. */
1247 create_timespec = get_create_timespec(conn, fsp, smb_fname);
1248 a_timespec = smb_fname->st.st_ex_atime;
1249 m_timespec = smb_fname->st.st_ex_mtime;
1250 c_timespec = get_change_timespec(conn, fsp, smb_fname);
1251
1252 if (lp_dos_filetime_resolution(SNUM(conn))) {
1253 dos_filetime_timespec(&create_timespec);
1254 dos_filetime_timespec(&a_timespec);
1255 dos_filetime_timespec(&m_timespec);
1256 dos_filetime_timespec(&c_timespec);
1257 }
1258
1259 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
1260 p += 8;
1261 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
1262 p += 8;
1263 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
1264 p += 8;
1265 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
1266 p += 8;
1267 SIVAL(p,0,fattr); /* File Attributes. */
1268 p += 4;
1269 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1270 p += 8;
1271 SOFF_T(p,0,file_len);
1272 p += 8;
1273 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1274 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
1275 size_t num_names = 0;
1276 unsigned int num_streams = 0;
1277 struct stream_struct *streams = NULL;
1278
1279 /* Do we have any EA's ? */
1280 status = get_ea_names_from_file(ctx, conn, fsp,
1281 smb_fname->base_name, NULL, &num_names);
1282 if (NT_STATUS_IS_OK(status) && num_names) {
1283 file_status &= ~NO_EAS;
1284 }
1285 status = vfs_streaminfo(conn, NULL, smb_fname->base_name, ctx,
1286 &num_streams, &streams);
1287 /* There is always one stream, ::$DATA. */
1288 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
1289 file_status &= ~NO_SUBSTREAMS;
1290 }
1291 TALLOC_FREE(streams);
1292 SSVAL(p,2,file_status);
1293 }
1294 p += 4;
1295 SCVAL(p,0,fsp->is_directory ? 1 : 0);
1296
1297 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1298 uint32 perms = 0;
1299 p += 25;
1300 if (fsp->is_directory ||
1301 can_write_to_file(conn, smb_fname)) {
1302 perms = FILE_GENERIC_ALL;
1303 } else {
1304 perms = FILE_GENERIC_READ|FILE_EXECUTE;
1305 }
1306 SIVAL(p,0,perms);
1307 }
1308
1309 DEBUG(5,("call_nt_transact_create: open name = %s\n",
1310 smb_fname_str_dbg(smb_fname)));
1311
1312 /* Send the required number of replies */
1313 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1314 out:
1315 return;
1316 }
1317
1318 /****************************************************************************
1319 Reply to a NT CANCEL request.
1320 conn POINTER CAN BE NULL HERE !
1321 ****************************************************************************/
1322
1323 void reply_ntcancel(struct smb_request *req)
1324 {
1325 /*
1326 * Go through and cancel any pending change notifies.
1327 */
1328
1329 START_PROFILE(SMBntcancel);
1330 srv_cancel_sign_response(req->sconn);
1331 remove_pending_change_notify_requests_by_mid(req->sconn, req->mid);
1332 remove_pending_lock_requests_by_mid_smb1(req->sconn, req->mid);
1333
1334 DEBUG(3,("reply_ntcancel: cancel called on mid = %llu.\n",
1335 (unsigned long long)req->mid));
1336
1337 END_PROFILE(SMBntcancel);
1338 return;
1339 }
1340
1341 /****************************************************************************
1342 Copy a file.
1343 ****************************************************************************/
1344
1345 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1346 connection_struct *conn,
1347 struct smb_request *req,
1348 struct smb_filename *smb_fname_src,
1349 struct smb_filename *smb_fname_dst,
1350 uint32 attrs)
1351 {
1352 files_struct *fsp1,*fsp2;
1353 uint32 fattr;
1354 int info;
1355 SMB_OFF_T ret=-1;
1356 NTSTATUS status = NT_STATUS_OK;
1357 char *parent;
1358
1359 if (!CAN_WRITE(conn)) {
1360 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1361 goto out;
1362 }
1363
1364 /* Source must already exist. */
1365 if (!VALID_STAT(smb_fname_src->st)) {
1366 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1367 goto out;
1368 }
1369
1370 /* Ensure attributes match. */
1371 fattr = dos_mode(conn, smb_fname_src);
1372 if ((fattr & ~attrs) & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) {
1373 status = NT_STATUS_NO_SUCH_FILE;
1374 goto out;
1375 }
1376
1377 /* Disallow if dst file already exists. */
1378 if (VALID_STAT(smb_fname_dst->st)) {
1379 status = NT_STATUS_OBJECT_NAME_COLLISION;
1380 goto out;
1381 }
1382
1383 /* No links from a directory. */
1384 if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1385 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1386 goto out;
1387 }
1388
1389 DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1390 smb_fname_str_dbg(smb_fname_src),
1391 smb_fname_str_dbg(smb_fname_dst)));
1392
1393 status = SMB_VFS_CREATE_FILE(
1394 conn, /* conn */
1395 req, /* req */
1396 0, /* root_dir_fid */
1397 smb_fname_src, /* fname */
1398 FILE_READ_DATA|FILE_READ_ATTRIBUTES|
1399 FILE_READ_EA, /* access_mask */
1400 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1401 FILE_SHARE_DELETE),
1402 FILE_OPEN, /* create_disposition*/
1403 0, /* create_options */
1404 FILE_ATTRIBUTE_NORMAL, /* file_attributes */
1405 NO_OPLOCK, /* oplock_request */
1406 0, /* allocation_size */
1407 0, /* private_flags */
1408 NULL, /* sd */
1409 NULL, /* ea_list */
1410 &fsp1, /* result */
1411 &info); /* pinfo */
1412
1413 if (!NT_STATUS_IS_OK(status)) {
1414 goto out;
1415 }
1416
1417 status = SMB_VFS_CREATE_FILE(
1418 conn, /* conn */
1419 req, /* req */
1420 0, /* root_dir_fid */
1421 smb_fname_dst, /* fname */
1422 FILE_WRITE_DATA|FILE_WRITE_ATTRIBUTES|
1423 FILE_WRITE_EA, /* access_mask */
1424 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1425 FILE_SHARE_DELETE),
1426 FILE_CREATE, /* create_disposition*/
1427 0, /* create_options */
1428 fattr, /* file_attributes */
1429 NO_OPLOCK, /* oplock_request */
1430 0, /* allocation_size */
1431 0, /* private_flags */
1432 NULL, /* sd */
1433 NULL, /* ea_list */
1434 &fsp2, /* result */
1435 &info); /* pinfo */
1436
1437 if (!NT_STATUS_IS_OK(status)) {
1438 close_file(NULL, fsp1, ERROR_CLOSE);
1439 goto out;
1440 }
1441
1442 if (smb_fname_src->st.st_ex_size) {
1443 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1444 }
1445
1446 /*
1447 * As we are opening fsp1 read-only we only expect
1448 * an error on close on fsp2 if we are out of space.
1449 * Thus we don't look at the error return from the
1450 * close of fsp1.
1451 */
1452 close_file(NULL, fsp1, NORMAL_CLOSE);
1453
1454 /* Ensure the modtime is set correctly on the destination file. */
1455 set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1456
1457 status = close_file(NULL, fsp2, NORMAL_CLOSE);
1458
1459 /* Grrr. We have to do this as open_file_ntcreate adds FILE_ATTRIBUTE_ARCHIVE when it
1460 creates the file. This isn't the correct thing to do in the copy
1461 case. JRA */
1462 if (!parent_dirname(talloc_tos(), smb_fname_dst->base_name, &parent,
1463 NULL)) {
1464 status = NT_STATUS_NO_MEMORY;
1465 goto out;
1466 }
1467 file_set_dosmode(conn, smb_fname_dst, fattr, parent, false);
1468 TALLOC_FREE(parent);
1469
1470 if (ret < (SMB_OFF_T)smb_fname_src->st.st_ex_size) {
1471 status = NT_STATUS_DISK_FULL;
1472 goto out;
1473 }
1474 out:
1475 if (!NT_STATUS_IS_OK(status)) {
1476 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1477 nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1478 smb_fname_str_dbg(smb_fname_dst)));
1479 }
1480
1481 return status;
1482 }
1483
1484 /****************************************************************************
1485 Reply to a NT rename request.
1486 ****************************************************************************/
1487
1488 void reply_ntrename(struct smb_request *req)
1489 {
1490 connection_struct *conn = req->conn;
1491 struct smb_filename *smb_fname_old = NULL;
1492 struct smb_filename *smb_fname_new = NULL;
1493 char *oldname = NULL;
1494 char *newname = NULL;
1495 const char *p;
1496 NTSTATUS status;
1497 bool src_has_wcard = False;
1498 bool dest_has_wcard = False;
1499 uint32 attrs;
1500 uint32_t ucf_flags_src = 0;
1501 uint32_t ucf_flags_dst = 0;
1502 uint16 rename_type;
1503 TALLOC_CTX *ctx = talloc_tos();
1504 bool stream_rename = false;
1505
1506 START_PROFILE(SMBntrename);
1507
1508 if (req->wct < 4) {
1509 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1510 goto out;
1511 }
1512
1513 attrs = SVAL(req->vwv+0, 0);
1514 rename_type = SVAL(req->vwv+1, 0);
1515
1516 p = (const char *)req->buf + 1;
1517 p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1518 &status, &src_has_wcard);
1519 if (!NT_STATUS_IS_OK(status)) {
1520 reply_nterror(req, status);
1521 goto out;
1522 }
1523
1524 if (ms_has_wild(oldname)) {
1525 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1526 goto out;
1527 }
1528
1529 p++;
1530 p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1531 &status, &dest_has_wcard);
1532 if (!NT_STATUS_IS_OK(status)) {
1533 reply_nterror(req, status);
1534 goto out;
1535 }
1536
1537 if (!lp_posix_pathnames()) {
1538 /* The newname must begin with a ':' if the
1539 oldname contains a ':'. */
1540 if (strchr_m(oldname, ':')) {
1541 if (newname[0] != ':') {
1542 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1543 goto out;
1544 }
1545 stream_rename = true;
1546 }
1547 }
1548
1549 /*
1550 * If this is a rename operation, allow wildcards and save the
1551 * destination's last component.
1552 */
1553 if (rename_type == RENAME_FLAG_RENAME) {
1554 ucf_flags_src = UCF_COND_ALLOW_WCARD_LCOMP;
1555 ucf_flags_dst = UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1556 }
1557
1558 /* rename_internals() calls unix_convert(), so don't call it here. */
1559 status = filename_convert(ctx, conn,
1560 req->flags2 & FLAGS2_DFS_PATHNAMES,
1561 oldname,
1562 ucf_flags_src,
1563 NULL,
1564 &smb_fname_old);
1565 if (!NT_STATUS_IS_OK(status)) {
1566 if (NT_STATUS_EQUAL(status,
1567 NT_STATUS_PATH_NOT_COVERED)) {
1568 reply_botherror(req,
1569 NT_STATUS_PATH_NOT_COVERED,
1570 ERRSRV, ERRbadpath);
1571 goto out;
1572 }
1573 reply_nterror(req, status);
1574 goto out;
1575 }
1576
1577 status = filename_convert(ctx, conn,
1578 req->flags2 & FLAGS2_DFS_PATHNAMES,
1579 newname,
1580 ucf_flags_dst,
1581 &dest_has_wcard,
1582 &smb_fname_new);
1583 if (!NT_STATUS_IS_OK(status)) {
1584 if (NT_STATUS_EQUAL(status,
1585 NT_STATUS_PATH_NOT_COVERED)) {
1586 reply_botherror(req,
1587 NT_STATUS_PATH_NOT_COVERED,
1588 ERRSRV, ERRbadpath);
1589 goto out;
1590 }
1591 reply_nterror(req, status);
1592 goto out;
1593 }
1594
1595 if (stream_rename) {
1596 /* smb_fname_new must be the same as smb_fname_old. */
1597 TALLOC_FREE(smb_fname_new->base_name);
1598 smb_fname_new->base_name = talloc_strdup(smb_fname_new,
1599 smb_fname_old->base_name);
1600 if (!smb_fname_new->base_name) {
1601 reply_nterror(req, NT_STATUS_NO_MEMORY);
1602 goto out;
1603 }
1604 }
1605
1606 DEBUG(3,("reply_ntrename: %s -> %s\n",
1607 smb_fname_str_dbg(smb_fname_old),
1608 smb_fname_str_dbg(smb_fname_new)));
1609
1610 switch(rename_type) {
1611 case RENAME_FLAG_RENAME:
1612 status = rename_internals(ctx, conn, req,
1613 smb_fname_old, smb_fname_new,
1614 attrs, False, src_has_wcard,
1615 dest_has_wcard,
1616 DELETE_ACCESS);
1617 break;
1618 case RENAME_FLAG_HARD_LINK:
1619 if (src_has_wcard || dest_has_wcard) {
1620 /* No wildcards. */
1621 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1622 } else {
1623 status = hardlink_internals(ctx, conn,
1624 req,
1625 false,
1626 smb_fname_old,
1627 smb_fname_new);
1628 }
1629 break;
1630 case RENAME_FLAG_COPY:
1631 if (src_has_wcard || dest_has_wcard) {
1632 /* No wildcards. */
1633 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1634 } else {
1635 status = copy_internals(ctx, conn, req,
1636 smb_fname_old,
1637 smb_fname_new,
1638 attrs);
1639 }
1640 break;
1641 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1642 status = NT_STATUS_INVALID_PARAMETER;
1643 break;
1644 default:
1645 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1646 break;
1647 }
1648
1649 if (!NT_STATUS_IS_OK(status)) {
1650 if (open_was_deferred(req->sconn, req->mid)) {
1651 /* We have re-scheduled this call. */
1652 goto out;
1653 }
1654
1655 reply_nterror(req, status);
1656 goto out;
1657 }
1658
1659 reply_outbuf(req, 0, 0);
1660 out:
1661 END_PROFILE(SMBntrename);
1662 return;
1663 }
1664
1665 /****************************************************************************
1666 Reply to a notify change - queue the request and
1667 don't allow a directory to be opened.
1668 ****************************************************************************/
1669
1670 static void smbd_smb1_notify_reply(struct smb_request *req,
1671 NTSTATUS error_code,
1672 uint8_t *buf, size_t len)
1673 {
1674 send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1675 }
1676
1677 static void call_nt_transact_notify_change(connection_struct *conn,
1678 struct smb_request *req,
1679 uint16 **ppsetup,
1680 uint32 setup_count,
1681 char **ppparams,
1682 uint32 parameter_count,
1683 char **ppdata, uint32 data_count,
1684 uint32 max_data_count,
1685 uint32 max_param_count)
1686 {
1687 uint16 *setup = *ppsetup;
1688 files_struct *fsp;
1689 uint32 filter;
1690 NTSTATUS status;
1691 bool recursive;
1692
1693 if(setup_count < 6) {
1694 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1695 return;
1696 }
1697
1698 fsp = file_fsp(req, SVAL(setup,4));
1699 filter = IVAL(setup, 0);
1700 recursive = (SVAL(setup, 6) != 0) ? True : False;
1701
1702 DEBUG(3,("call_nt_transact_notify_change\n"));
1703
1704 if(!fsp) {
1705 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1706 return;
1707 }
1708
1709 {
1710 char *filter_string;
1711
1712 if (!(filter_string = notify_filter_string(NULL, filter))) {
1713 reply_nterror(req,NT_STATUS_NO_MEMORY);
1714 return;
1715 }
1716
1717 DEBUG(3,("call_nt_transact_notify_change: notify change "
1718 "called on %s, filter = %s, recursive = %d\n",
1719 fsp_str_dbg(fsp), filter_string, recursive));
1720
1721 TALLOC_FREE(filter_string);
1722 }
1723
1724 if((!fsp->is_directory) || (conn != fsp->conn)) {
1725 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1726 return;
1727 }
1728
1729 if (fsp->notify == NULL) {
1730
1731 status = change_notify_create(fsp, filter, recursive);
1732
1733 if (!NT_STATUS_IS_OK(status)) {
1734 DEBUG(10, ("change_notify_create returned %s\n",
1735 nt_errstr(status)));
1736 reply_nterror(req, status);
1737 return;
1738 }
1739 }
1740
1741 if (fsp->notify->num_changes != 0) {
1742
1743 /*
1744 * We've got changes pending, respond immediately
1745 */
1746
1747 /*
1748 * TODO: write a torture test to check the filtering behaviour
1749 * here.
1750 */
1751
1752 change_notify_reply(req,
1753 NT_STATUS_OK,
1754 max_param_count,
1755 fsp->notify,
1756 smbd_smb1_notify_reply);
1757
1758 /*
1759 * change_notify_reply() above has independently sent its
1760 * results
1761 */
1762 return;
1763 }
1764
1765 /*
1766 * No changes pending, queue the request
1767 */
1768
1769 status = change_notify_add_request(req,
1770 max_param_count,
1771 filter,
1772 recursive, fsp,
1773 smbd_smb1_notify_reply);
1774 if (!NT_STATUS_IS_OK(status)) {
1775 reply_nterror(req, status);
1776 }
1777 return;
1778 }
1779
1780 /****************************************************************************
1781 Reply to an NT transact rename command.
1782 ****************************************************************************/
1783
1784 static void call_nt_transact_rename(connection_struct *conn,
1785 struct smb_request *req,
1786 uint16 **ppsetup, uint32 setup_count,
1787 char **ppparams, uint32 parameter_count,
1788 char **ppdata, uint32 data_count,
1789 uint32 max_data_count)
1790 {
1791 char *params = *ppparams;
1792 char *new_name = NULL;
1793 files_struct *fsp = NULL;
1794 bool dest_has_wcard = False;
1795 NTSTATUS status;
1796 TALLOC_CTX *ctx = talloc_tos();
1797
1798 if(parameter_count < 5) {
1799 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1800 return;
1801 }
1802
1803 fsp = file_fsp(req, SVAL(params, 0));
1804 if (!check_fsp(conn, req, fsp)) {
1805 return;
1806 }
1807 srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1808 parameter_count - 4,
1809 STR_TERMINATE, &status, &dest_has_wcard);
1810 if (!NT_STATUS_IS_OK(status)) {
1811 reply_nterror(req, status);
1812 return;
1813 }
1814
1815 /*
1816 * W2K3 ignores this request as the RAW-RENAME test
1817 * demonstrates, so we do.
1818 */
1819 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1820
1821 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1822 fsp_str_dbg(fsp), new_name));
1823
1824 return;
1825 }
1826
1827 /******************************************************************************
1828 Fake up a completely empty SD.
1829 *******************************************************************************/
1830
1831 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, struct security_descriptor **ppsd)
1832 {
1833 size_t sd_size;
1834
1835 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1836 if(!*ppsd) {
1837 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1838 return NT_STATUS_NO_MEMORY;
1839 }
1840
1841 return NT_STATUS_OK;
1842 }
1843
1844 /****************************************************************************
1845 Reply to query a security descriptor.
1846 Callable from SMB2 and SMB2.
1847 If it returns NT_STATUS_BUFFER_TOO_SMALL, pdata_size is initialized with
1848 the required size.
1849 ****************************************************************************/
1850
1851 NTSTATUS smbd_do_query_security_desc(connection_struct *conn,
1852 TALLOC_CTX *mem_ctx,
1853 files_struct *fsp,
1854 uint32_t security_info_wanted,
1855 uint32_t max_data_count,
1856 uint8_t **ppmarshalled_sd,
1857 size_t *psd_size)
1858 {
1859 NTSTATUS status;
1860 struct security_descriptor *psd = NULL;
1861
1862 /*
1863 * Get the permissions to return.
1864 */
1865
1866 if ((security_info_wanted & SECINFO_SACL) &&
1867 !(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
1868 return NT_STATUS_ACCESS_DENIED;
1869 }
1870
1871 if ((security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|SECINFO_GROUP)) &&
1872 !(fsp->access_mask & SEC_STD_READ_CONTROL)) {
1873 return NT_STATUS_ACCESS_DENIED;
1874 }
1875
1876 if (security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|
1877 SECINFO_GROUP|SECINFO_SACL)) {
1878 /* Don't return SECINFO_LABEL if anything else was
1879 requested. See bug #8458. */
1880 security_info_wanted &= ~SECINFO_LABEL;
1881 }
1882
1883 if (!lp_nt_acl_support(SNUM(conn))) {
1884 status = get_null_nt_acl(mem_ctx, &psd);
1885 } else if (security_info_wanted & SECINFO_LABEL) {
1886 /* Like W2K3 return a null object. */
1887 status = get_null_nt_acl(mem_ctx, &psd);
1888 } else {
1889 status = SMB_VFS_FGET_NT_ACL(
1890 fsp, security_info_wanted, &psd);
1891 }
1892 if (!NT_STATUS_IS_OK(status)) {
1893 return status;
1894 }
1895
1896 if (!(security_info_wanted & SECINFO_OWNER)) {
1897 psd->owner_sid = NULL;
1898 }
1899 if (!(security_info_wanted & SECINFO_GROUP)) {
1900 psd->group_sid = NULL;
1901 }
1902 if (!(security_info_wanted & SECINFO_DACL)) {
1903 psd->type &= ~SEC_DESC_DACL_PRESENT;
1904 psd->dacl = NULL;
1905 }
1906 if (!(security_info_wanted & SECINFO_SACL)) {
1907 psd->type &= ~SEC_DESC_SACL_PRESENT;
1908 psd->sacl = NULL;
1909 }
1910
1911 /* If the SACL/DACL is NULL, but was requested, we mark that it is
1912 * present in the reply to match Windows behavior */
1913 if (psd->sacl == NULL &&
1914 security_info_wanted & SECINFO_SACL)
1915 psd->type |= SEC_DESC_SACL_PRESENT;
1916 if (psd->dacl == NULL &&
1917 security_info_wanted & SECINFO_DACL)
1918 psd->type |= SEC_DESC_DACL_PRESENT;
1919
1920 if (security_info_wanted & SECINFO_LABEL) {
1921 /* Like W2K3 return a null object. */
1922 psd->owner_sid = NULL;
1923 psd->group_sid = NULL;
1924 psd->dacl = NULL;
1925 psd->sacl = NULL;
1926 psd->type &= ~(SEC_DESC_DACL_PRESENT|SEC_DESC_SACL_PRESENT);
1927 }
1928
1929 *psd_size = ndr_size_security_descriptor(psd, 0);
1930
1931 DEBUG(3,("smbd_do_query_security_desc: sd_size = %lu.\n",
1932 (unsigned long)*psd_size));
1933
1934 if (DEBUGLEVEL >= 10) {
1935 DEBUG(10,("smbd_do_query_security_desc for file %s\n",
1936 fsp_str_dbg(fsp)));
1937 NDR_PRINT_DEBUG(security_descriptor, psd);
1938 }
1939
1940 if (max_data_count < *psd_size) {
1941 TALLOC_FREE(psd);
1942 return NT_STATUS_BUFFER_TOO_SMALL;
1943 }
1944
1945 status = marshall_sec_desc(mem_ctx, psd,
1946 ppmarshalled_sd, psd_size);
1947
1948 if (!NT_STATUS_IS_OK(status)) {
1949 TALLOC_FREE(psd);
1950 return status;
1951 }
1952
1953 TALLOC_FREE(psd);
1954 return NT_STATUS_OK;
1955 }
1956
1957 /****************************************************************************
1958 SMB1 reply to query a security descriptor.
1959 ****************************************************************************/
1960
1961 static void call_nt_transact_query_security_desc(connection_struct *conn,
1962 struct smb_request *req,
1963 uint16 **ppsetup,
1964 uint32 setup_count,
1965 char **ppparams,
1966 uint32 parameter_count,
1967 char **ppdata,
1968 uint32 data_count,
1969 uint32 max_data_count)
1970 {
1971 char *params = *ppparams;
1972 char *data = *ppdata;
1973 size_t sd_size = 0;
1974 uint32 security_info_wanted;
1975 files_struct *fsp = NULL;
1976 NTSTATUS status;
1977 uint8_t *marshalled_sd = NULL;
1978
1979 if(parameter_count < 8) {
1980 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1981 return;
1982 }
1983
1984 fsp = file_fsp(req, SVAL(params,0));
1985 if(!fsp) {
1986 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1987 return;
1988 }
1989
1990 security_info_wanted = IVAL(params,4);
1991
1992 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
1993 "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
1994 (unsigned int)security_info_wanted));
1995
1996 params = nttrans_realloc(ppparams, 4);
1997 if(params == NULL) {
1998 reply_nterror(req, NT_STATUS_NO_MEMORY);
1999 return;
2000 }
2001
2002 /*
2003 * Get the permissions to return.
2004 */
2005
2006 status = smbd_do_query_security_desc(conn,
2007 talloc_tos(),
2008 fsp,
2009 security_info_wanted,
2010 max_data_count,
2011 &marshalled_sd,
2012 &sd_size);
2013
2014 if (NT_STATUS_EQUAL(status, NT_STATUS_BUFFER_TOO_SMALL)) {
2015 SIVAL(params,0,(uint32_t)sd_size);
2016 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2017 params, 4, NULL, 0);
2018 return;
2019 }
2020
2021 if (!NT_STATUS_IS_OK(status)) {
2022 reply_nterror(req, status);
2023 return;
2024 }
2025
2026 SMB_ASSERT(sd_size > 0);
2027
2028 SIVAL(params,0,(uint32_t)sd_size);
2029
2030 if (max_data_count < sd_size) {
2031 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2032 params, 4, NULL, 0);
2033 return;
2034 }
2035
2036 /*
2037 * Allocate the data we will return.
2038 */
2039
2040 data = nttrans_realloc(ppdata, sd_size);
2041 if(data == NULL) {
2042 reply_nterror(req, NT_STATUS_NO_MEMORY);
2043 return;
2044 }
2045
2046 memcpy(data, marshalled_sd, sd_size);
2047
2048 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
2049
2050 return;
2051 }
2052
2053 /****************************************************************************
2054 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
2055 ****************************************************************************/
2056
2057 static void call_nt_transact_set_security_desc(connection_struct *conn,
2058 struct smb_request *req,
2059 uint16 **ppsetup,
2060 uint32 setup_count,
2061 char **ppparams,
2062 uint32 parameter_count,
2063 char **ppdata,
2064 uint32 data_count,
2065 uint32 max_data_count)
2066 {
2067 char *params= *ppparams;
2068 char *data = *ppdata;
2069 files_struct *fsp = NULL;
2070 uint32 security_info_sent = 0;
2071 NTSTATUS status;
2072
2073 if(parameter_count < 8) {
2074 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2075 return;
2076 }
2077
2078 if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
2079 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2080 return;
2081 }
2082
2083 if (!CAN_WRITE(fsp->conn)) {
2084 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2085 return;
2086 }
2087
2088 if(!lp_nt_acl_support(SNUM(conn))) {
2089 goto done;
2090 }
2091
2092 security_info_sent = IVAL(params,4);
2093
2094 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
2095 fsp_str_dbg(fsp), (unsigned int)security_info_sent));
2096
2097 if (data_count == 0) {
2098 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2099 return;
2100 }
2101
2102 status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
2103
2104 if (!NT_STATUS_IS_OK(status)) {
2105 reply_nterror(req, status);
2106 return;
2107 }
2108
2109 done:
2110 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2111 return;
2112 }
2113
2114 /****************************************************************************
2115 Reply to NT IOCTL
2116 ****************************************************************************/
2117
2118 static void call_nt_transact_ioctl(connection_struct *conn,
2119 struct smb_request *req,
2120 uint16 **ppsetup, uint32 setup_count,
2121 char **ppparams, uint32 parameter_count,
2122 char **ppdata, uint32 data_count,
2123 uint32 max_data_count)
2124 {
2125 NTSTATUS status;
2126 uint32 function;
2127 uint16 fidnum;
2128 files_struct *fsp;
2129 uint8 isFSctl;
2130 uint8 compfilter;
2131 char *out_data = NULL;
2132 uint32 out_data_len = 0;
2133 char *pdata = *ppdata;
2134 TALLOC_CTX *ctx = talloc_tos();
2135
2136 if (setup_count != 8) {
2137 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
2138 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2139 return;
2140 }
2141
2142 function = IVAL(*ppsetup, 0);
2143 fidnum = SVAL(*ppsetup, 4);
2144 isFSctl = CVAL(*ppsetup, 6);
2145 compfilter = CVAL(*ppsetup, 7);
2146
2147 DEBUG(10, ("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
2148 function, fidnum, isFSctl, compfilter));
2149
2150 fsp=file_fsp(req, fidnum);
2151
2152 /*
2153 * We don't really implement IOCTLs, especially on files.
2154 */
2155 if (!isFSctl) {
2156 DEBUG(10, ("isFSctl: 0x%02X indicates IOCTL, not FSCTL!\n",
2157 isFSctl));
2158 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2159 return;
2160 }
2161
2162 /* Has to be for an open file! */
2163 if (!check_fsp_open(conn, req, fsp)) {
2164 return;
2165 }
2166
2167 SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
2168
2169 /*
2170 * out_data might be allocated by the VFS module, but talloc should be
2171 * used, and should be cleaned up when the request ends.
2172 */
2173 status = SMB_VFS_FSCTL(fsp,
2174 ctx,
2175 function,
2176 req->flags2,
2177 (uint8_t *)pdata,
2178 data_count,
2179 (uint8_t **)&out_data,
2180 max_data_count,
2181 &out_data_len);
2182 if (!NT_STATUS_IS_OK(status)) {
2183 reply_nterror(req, status);
2184 } else {
2185 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, out_data, out_data_len);
2186 }
2187 }
2188
2189
2190 #ifdef HAVE_SYS_QUOTAS
2191 /****************************************************************************
2192 Reply to get user quota
2193 ****************************************************************************/
2194
2195 static void call_nt_transact_get_user_quota(connection_struct *conn,
2196 struct smb_request *req,
2197 uint16 **ppsetup,
2198 uint32 setup_count,
2199 char **ppparams,
2200 uint32 parameter_count,
2201 char **ppdata,
2202 uint32 data_count,
2203 uint32 max_data_count)
2204 {
2205 NTSTATUS nt_status = NT_STATUS_OK;
2206 char *params = *ppparams;
2207 char *pdata = *ppdata;
2208 char *entry;
2209 int data_len=0,param_len=0;
2210 int qt_len=0;
2211 int entry_len = 0;
2212 files_struct *fsp = NULL;
2213 uint16 level = 0;
2214 size_t sid_len;
2215 struct dom_sid sid;
2216 bool start_enum = True;
2217 SMB_NTQUOTA_STRUCT qt;
2218 SMB_NTQUOTA_LIST *tmp_list;
2219 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2220
2221 ZERO_STRUCT(qt);
2222
2223 /* access check */
2224 if (get_current_uid(conn) != 0) {
2225 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2226 "[%s]\n", lp_servicename(SNUM(conn)),
2227 conn->session_info->unix_info->unix_name));
2228 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2229 return;
2230 }
2231
2232 /*
2233 * Ensure minimum number of parameters sent.
2234 */
2235
2236 if (parameter_count < 4) {
2237 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2238 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2239 return;
2240 }
2241
2242 /* maybe we can check the quota_fnum */
2243 fsp = file_fsp(req, SVAL(params,0));
2244 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2245 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2246 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2247 return;
2248 }
2249
2250 /* the NULL pointer checking for fsp->fake_file_handle->pd
2251 * is done by CHECK_NTQUOTA_HANDLE_OK()
2252 */
2253 qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2254
2255 level = SVAL(params,2);
2256
2257 /* unknown 12 bytes leading in params */
2258
2259 switch (level) {
2260 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2261 /* seems that we should continue with the enum here --metze */
2262
2263 if (qt_handle->quota_list!=NULL &&
2264 qt_handle->tmp_list==NULL) {
2265
2266 /* free the list */
2267 free_ntquota_list(&(qt_handle->quota_list));
2268
2269 /* Realloc the size of parameters and data we will return */
2270 param_len = 4;
2271 params = nttrans_realloc(ppparams, param_len);
2272 if(params == NULL) {
2273 reply_nterror(req, NT_STATUS_NO_MEMORY);
2274 return;
2275 }
2276
2277 data_len = 0;
2278 SIVAL(params,0,data_len);
2279
2280 break;
2281 }
2282
2283 start_enum = False;
2284
2285 case TRANSACT_GET_USER_QUOTA_LIST_START:
2286
2287 if (qt_handle->quota_list==NULL &&
2288 qt_handle->tmp_list==NULL) {
2289 start_enum = True;
2290 }
2291
2292 if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2293 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2294 return;
2295 }
2296
2297 /* Realloc the size of parameters and data we will return */
2298 param_len = 4;
2299 params = nttrans_realloc(ppparams, param_len);
2300 if(params == NULL) {
2301 reply_nterror(req, NT_STATUS_NO_MEMORY);
2302 return;
2303 }
2304
2305 /* we should not trust the value in max_data_count*/
2306 max_data_count = MIN(max_data_count,2048);
2307
2308 pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2309 if(pdata == NULL) {
2310 reply_nterror(req, NT_STATUS_NO_MEMORY);
2311 return;
2312 }
2313
2314 entry = pdata;
2315
2316 /* set params Size of returned Quota Data 4 bytes*/
2317 /* but set it later when we know it */
2318
2319 /* for each entry push the data */
2320
2321 if (start_enum) {
2322 qt_handle->tmp_list = qt_handle->quota_list;
2323 }
2324
2325 tmp_list = qt_handle->tmp_list;
2326
2327 for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2328 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2329
2330 sid_len = ndr_size_dom_sid(
2331 &tmp_list->quotas->sid, 0);
2332 entry_len = 40 + sid_len;
2333
2334 /* nextoffset entry 4 bytes */
2335 SIVAL(entry,0,entry_len);
2336
2337 /* then the len of the SID 4 bytes */
2338 SIVAL(entry,4,sid_len);
2339
2340 /* unknown data 8 bytes uint64_t */
2341 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2342
2343 /* the used disk space 8 bytes uint64_t */
2344 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2345
2346 /* the soft quotas 8 bytes uint64_t */
2347 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2348
2349 /* the hard quotas 8 bytes uint64_t */
2350 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2351
2352 /* and now the SID */
2353 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2354 }
2355
2356 qt_handle->tmp_list = tmp_list;
2357
2358 /* overwrite the offset of the last entry */
2359 SIVAL(entry-entry_len,0,0);
2360
2361 data_len = 4+qt_len;
2362 /* overwrite the params quota_data_len */
2363 SIVAL(params,0,data_len);
2364
2365 break;
2366
2367 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2368
2369 /* unknown 4 bytes IVAL(pdata,0) */
2370
2371 if (data_count < 8) {
2372 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2373 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2374 return;
2375 }
2376
2377 sid_len = IVAL(pdata,4);
2378 /* Ensure this is less than 1mb. */
2379 if (sid_len > (1024*1024)) {
2380 reply_nterror(req, NT_STATUS_NO_MEMORY);
2381 return;
2382 }
2383
2384 if (data_count < 8+sid_len) {
2385 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2386 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2387 return;
2388 }
2389
2390 data_len = 4+40+sid_len;
2391
2392 if (max_data_count < data_len) {
2393 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2394 max_data_count, data_len));
2395 param_len = 4;
2396 SIVAL(params,0,data_len);
2397 data_len = 0;
2398 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2399 break;
2400 }
2401
2402 if (!sid_parse(pdata+8,sid_len,&sid)) {
2403 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2404 return;
2405 }
2406
2407 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2408 ZERO_STRUCT(qt);
2409 /*
2410 * we have to return zero's in all fields
2411 * instead of returning an error here
2412 * --metze
2413 */
2414 }
2415
2416 /* Realloc the size of parameters and data we will return */
2417 param_len = 4;
2418 params = nttrans_realloc(ppparams, param_len);
2419 if(params == NULL) {
2420 reply_nterror(req, NT_STATUS_NO_MEMORY);
2421 return;
2422 }
2423
2424 pdata = nttrans_realloc(ppdata, data_len);
2425 if(pdata == NULL) {
2426 reply_nterror(req, NT_STATUS_NO_MEMORY);
2427 return;
2428 }
2429
2430 entry = pdata;
2431
2432 /* set params Size of returned Quota Data 4 bytes*/
2433 SIVAL(params,0,data_len);
2434
2435 /* nextoffset entry 4 bytes */
2436 SIVAL(entry,0,0);
2437
2438 /* then the len of the SID 4 bytes */
2439 SIVAL(entry,4,sid_len);
2440
2441 /* unknown data 8 bytes uint64_t */
2442 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2443
2444 /* the used disk space 8 bytes uint64_t */
2445 SBIG_UINT(entry,16,qt.usedspace);
2446
2447 /* the soft quotas 8 bytes uint64_t */
2448 SBIG_UINT(entry,24,qt.softlim);
2449
2450 /* the hard quotas 8 bytes uint64_t */
2451 SBIG_UINT(entry,32,qt.hardlim);
2452
2453 /* and now the SID */
2454 sid_linearize(entry+40, sid_len, &sid);
2455
2456 break;
2457
2458 default:
2459 DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2460 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2461 return;
2462 break;
2463 }
2464
2465 send_nt_replies(conn, req, nt_status, params, param_len,
2466 pdata, data_len);
2467 }
2468
2469 /****************************************************************************
2470 Reply to set user quota
2471 ****************************************************************************/
2472
2473 static void call_nt_transact_set_user_quota(connection_struct *conn,
2474 struct smb_request *req,
2475 uint16 **ppsetup,
2476 uint32 setup_count,
2477 char **ppparams,
2478 uint32 parameter_count,
2479 char **ppdata,
2480 uint32 data_count,
2481 uint32 max_data_count)
2482 {
2483 char *params = *ppparams;
2484 char *pdata = *ppdata;
2485 int data_len=0,param_len=0;
2486 SMB_NTQUOTA_STRUCT qt;
2487 size_t sid_len;
2488 struct dom_sid sid;
2489 files_struct *fsp = NULL;
2490
2491 ZERO_STRUCT(qt);
2492
2493 /* access check */
2494 if (get_current_uid(conn) != 0) {
2495 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2496 "[%s]\n", lp_servicename(SNUM(conn)),
2497 conn->session_info->unix_info->unix_name));
2498 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2499 return;
2500 }
2501
2502 /*
2503 * Ensure minimum number of parameters sent.
2504 */
2505
2506 if (parameter_count < 2) {
2507 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2508 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2509 return;
2510 }
2511
2512 /* maybe we can check the quota_fnum */
2513 fsp = file_fsp(req, SVAL(params,0));
2514 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2515 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2516 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2517 return;
2518 }
2519
2520 if (data_count < 40) {
2521 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2522 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2523 return;
2524 }
2525
2526 /* offset to next quota record.
2527 * 4 bytes IVAL(pdata,0)
2528 * unused here...
2529 */
2530
2531 /* sid len */
2532 sid_len = IVAL(pdata,4);
2533
2534 if (data_count < 40+sid_len || (40+sid_len < sid_len)) {
2535 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2536 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2537 return;
2538 }
2539
2540 /* unknown 8 bytes in pdata
2541 * maybe its the change time in NTTIME
2542 */
2543
2544 /* the used space 8 bytes (uint64_t)*/
2545 qt.usedspace = BVAL(pdata,16);
2546
2547 /* the soft quotas 8 bytes (uint64_t)*/
2548 qt.softlim = BVAL(pdata,24);
2549
2550 /* the hard quotas 8 bytes (uint64_t)*/
2551 qt.hardlim = BVAL(pdata,32);
2552
2553 if (!sid_parse(pdata+40,sid_len,&sid)) {
2554 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2555 return;
2556 }
2557
2558 DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2559
2560 /* 44 unknown bytes left... */
2561
2562 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2563 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2564 return;
2565 }
2566
2567 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2568 pdata, data_len);
2569 }
2570 #endif /* HAVE_SYS_QUOTAS */
2571
2572 static void handle_nttrans(connection_struct *conn,
2573 struct trans_state *state,
2574 struct smb_request *req)
2575 {
2576 if (get_Protocol() >= PROTOCOL_NT1) {
2577 req->flags2 |= 0x40; /* IS_LONG_NAME */
2578 SSVAL(discard_const_p(uint8_t, req->inbuf),smb_flg2,req->flags2);
2579 }
2580
2581
2582 SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2583
2584 /* Now we must call the relevant NT_TRANS function */
2585 switch(state->call) {
2586 case NT_TRANSACT_CREATE:
2587 {
2588 START_PROFILE(NT_transact_create);
2589 call_nt_transact_create(
2590 conn, req,
2591 &state->setup, state->setup_count,
2592 &state->param, state->total_param,
2593 &state->data, state->total_data,
2594 state->max_data_return);
2595 END_PROFILE(NT_transact_create);
2596 break;
2597 }
2598
2599 case NT_TRANSACT_IOCTL:
2600 {
2601 START_PROFILE(NT_transact_ioctl);
2602 call_nt_transact_ioctl(
2603 conn, req,
2604 &state->setup, state->setup_count,
2605 &state->param, state->total_param,
2606 &state->data, state->total_data,
2607 state->max_data_return);
2608 END_PROFILE(NT_transact_ioctl);
2609 break;
2610 }
2611
2612 case NT_TRANSACT_SET_SECURITY_DESC:
2613 {
2614 START_PROFILE(NT_transact_set_security_desc);
2615 call_nt_transact_set_security_desc(
2616 conn, req,
2617 &state->setup, state->setup_count,
2618 &state->param, state->total_param,
2619 &state->data, state->total_data,
2620 state->max_data_return);
2621 END_PROFILE(NT_transact_set_security_desc);
2622 break;
2623 }
2624
2625 case NT_TRANSACT_NOTIFY_CHANGE:
2626 {
2627 START_PROFILE(NT_transact_notify_change);
2628 call_nt_transact_notify_change(
2629 conn, req,
2630 &state->setup, state->setup_count,
2631 &state->param, state->total_param,
2632 &state->data, state->total_data,
2633 state->max_data_return,
2634 state->max_param_return);
2635 END_PROFILE(NT_transact_notify_change);
2636 break;
2637 }
2638
2639 case NT_TRANSACT_RENAME:
2640 {
2641 START_PROFILE(NT_transact_rename);
2642 call_nt_transact_rename(
2643 conn, req,
2644 &state->setup, state->setup_count,
2645 &state->param, state->total_param,
2646 &state->data, state->total_data,
2647 state->max_data_return);
2648 END_PROFILE(NT_transact_rename);
2649 break;
2650 }
2651
2652 case NT_TRANSACT_QUERY_SECURITY_DESC:
2653 {
2654 START_PROFILE(NT_transact_query_security_desc);
2655 call_nt_transact_query_security_desc(
2656 conn, req,
2657 &state->setup, state->setup_count,
2658 &state->param, state->total_param,
2659 &state->data, state->total_data,
2660 state->max_data_return);
2661 END_PROFILE(NT_transact_query_security_desc);
2662 break;
2663 }
2664
2665 #ifdef HAVE_SYS_QUOTAS
2666 case NT_TRANSACT_GET_USER_QUOTA:
2667 {
2668 START_PROFILE(NT_transact_get_user_quota);
2669 call_nt_transact_get_user_quota(
2670 conn, req,
2671 &state->setup, state->setup_count,
2672 &state->param, state->total_param,
2673 &state->data, state->total_data,
2674 state->max_data_return);
2675 END_PROFILE(NT_transact_get_user_quota);
2676 break;
2677 }
2678
2679 case NT_TRANSACT_SET_USER_QUOTA:
2680 {
2681 START_PROFILE(NT_transact_set_user_quota);
2682 call_nt_transact_set_user_quota(
2683 conn, req,
2684 &state->setup, state->setup_count,
2685 &state->param, state->total_param,
2686 &state->data, state->total_data,
2687 state->max_data_return);
2688 END_PROFILE(NT_transact_set_user_quota);
2689 break;
2690 }
2691 #endif /* HAVE_SYS_QUOTAS */
2692
2693 default:
2694 /* Error in request */
2695 DEBUG(0,("handle_nttrans: Unknown request %d in "
2696 "nttrans call\n", state->call));
2697 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2698 return;
2699 }
2700 return;
2701 }
2702
2703 /****************************************************************************
2704 Reply to a SMBNTtrans.
2705 ****************************************************************************/
2706
2707 void reply_nttrans(struct smb_request *req)
2708 {
2709 connection_struct *conn = req->conn;
2710 uint32_t pscnt;
2711 uint32_t psoff;
2712 uint32_t dscnt;
2713 uint32_t dsoff;
2714 uint16 function_code;
2715 NTSTATUS result;
2716 struct trans_state *state;
2717
2718 START_PROFILE(SMBnttrans);
2719
2720 if (req->wct < 19) {
2721 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2722 END_PROFILE(SMBnttrans);
2723 return;
2724 }
2725
2726 pscnt = IVAL(req->vwv+9, 1);
2727 psoff = IVAL(req->vwv+11, 1);
2728 dscnt = IVAL(req->vwv+13, 1);
2729 dsoff = IVAL(req->vwv+15, 1);
2730 function_code = SVAL(req->vwv+18, 0);
2731
2732 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2733 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2734 END_PROFILE(SMBnttrans);
2735 return;
2736 }
2737
2738 result = allow_new_trans(conn->pending_trans, req->mid);
2739 if (!NT_STATUS_IS_OK(result)) {
2740 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2741 reply_nterror(req, result);
2742 END_PROFILE(SMBnttrans);
2743 return;
2744 }
2745
2746 if ((state = talloc(conn, struct trans_state)) == NULL) {
2747 reply_nterror(req, NT_STATUS_NO_MEMORY);
2748 END_PROFILE(SMBnttrans);
2749 return;
2750 }
2751
2752 state->cmd = SMBnttrans;
2753
2754 state->mid = req->mid;
2755 state->vuid = req->vuid;
2756 state->total_data = IVAL(req->vwv+3, 1);
2757 state->data = NULL;
2758 state->total_param = IVAL(req->vwv+1, 1);
2759 state->param = NULL;
2760 state->max_data_return = IVAL(req->vwv+7, 1);
2761 state->max_param_return = IVAL(req->vwv+5, 1);
2762
2763 /* setup count is in *words* */
2764 state->setup_count = 2*CVAL(req->vwv+17, 1);
2765 state->setup = NULL;
2766 state->call = function_code;
2767
2768 DEBUG(10, ("num_setup=%u, "
2769 "param_total=%u, this_param=%u, max_param=%u, "
2770 "data_total=%u, this_data=%u, max_data=%u, "
2771 "param_offset=%u, data_offset=%u\n",
2772 (unsigned)state->setup_count,
2773 (unsigned)state->total_param, (unsigned)pscnt,
2774 (unsigned)state->max_param_return,
2775 (unsigned)state->total_data, (unsigned)dscnt,
2776 (unsigned)state->max_data_return,
2777 (unsigned)psoff, (unsigned)dsoff));
2778
2779 /*
2780 * All nttrans messages we handle have smb_wct == 19 +
2781 * state->setup_count. Ensure this is so as a sanity check.
2782 */
2783
2784 if(req->wct != 19 + (state->setup_count/2)) {
2785 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2786 req->wct, 19 + (state->setup_count/2)));
2787 goto bad_param;
2788 }
2789
2790 /* Don't allow more than 128mb for each value. */
2791 if ((state->total_data > (1024*1024*128)) ||
2792 (state->total_param > (1024*1024*128))) {
2793 reply_nterror(req, NT_STATUS_NO_MEMORY);
2794 END_PROFILE(SMBnttrans);
2795 return;
2796 }
2797
2798 if ((dscnt > state->total_data) || (pscnt > state->total_param))
2799 goto bad_param;
2800
2801 if (state->total_data) {
2802
2803 if (trans_oob(state->total_data, 0, dscnt)
2804 || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
2805 goto bad_param;
2806 }
2807
2808 /* Can't use talloc here, the core routines do realloc on the
2809 * params and data. */
2810 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2811 DEBUG(0,("reply_nttrans: data malloc fail for %u "
2812 "bytes !\n", (unsigned int)state->total_data));
2813 TALLOC_FREE(state);
2814 reply_nterror(req, NT_STATUS_NO_MEMORY);
2815 END_PROFILE(SMBnttrans);
2816 return;
2817 }
2818
2819 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2820 }
2821
2822 if (state->total_param) {
2823
2824 if (trans_oob(state->total_param, 0, pscnt)
2825 || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
2826 goto bad_param;
2827 }
2828
2829 /* Can't use talloc here, the core routines do realloc on the
2830 * params and data. */
2831 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2832 DEBUG(0,("reply_nttrans: param malloc fail for %u "
2833 "bytes !\n", (unsigned int)state->total_param));
2834 SAFE_FREE(state->data);
2835 TALLOC_FREE(state);
2836 reply_nterror(req, NT_STATUS_NO_MEMORY);
2837 END_PROFILE(SMBnttrans);
2838 return;
2839 }
2840
2841 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2842 }
2843
2844 state->received_data = dscnt;
2845 state->received_param = pscnt;
2846
2847 if(state->setup_count > 0) {
2848 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2849 state->setup_count));
2850
2851 /*
2852 * No overflow possible here, state->setup_count is an
2853 * unsigned int, being filled by a single byte from
2854 * CVAL(req->vwv+13, 0) above. The cast in the comparison
2855 * below is not necessary, it's here to clarify things. The
2856 * validity of req->vwv and req->wct has been checked in
2857 * init_smb_request already.
2858 */
2859 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
2860 goto bad_param;
2861 }
2862
2863 state->setup = (uint16 *)TALLOC(state, state->setup_count);
2864 if (state->setup == NULL) {
2865 DEBUG(0,("reply_nttrans : Out of memory\n"));
2866 SAFE_FREE(state->data);
2867 SAFE_FREE(state->param);
2868 TALLOC_FREE(state);
2869 reply_nterror(req, NT_STATUS_NO_MEMORY);
2870 END_PROFILE(SMBnttrans);
2871 return;
2872 }
2873
2874 memcpy(state->setup, req->vwv+19, state->setup_count);
2875 dump_data(10, (uint8 *)state->setup, state->setup_count);
2876 }
2877
2878 if ((state->received_data == state->total_data) &&
2879 (state->received_param == state->total_param)) {
2880 handle_nttrans(conn, state, req);
2881 SAFE_FREE(state->param);
2882 SAFE_FREE(state->data);
2883 TALLOC_FREE(state);
2884 END_PROFILE(SMBnttrans);
2885 return;
2886 }
2887
2888 DLIST_ADD(conn->pending_trans, state);
2889
2890 /* We need to send an interim response then receive the rest
2891 of the parameter/data bytes */
2892 reply_outbuf(req, 0, 0);
2893 show_msg((char *)req->outbuf);
2894 END_PROFILE(SMBnttrans);
2895 return;
2896
2897 bad_param:
2898
2899 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2900 SAFE_FREE(state->data);
2901 SAFE_FREE(state->param);
2902 TALLOC_FREE(state);
2903 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2904 END_PROFILE(SMBnttrans);
2905 return;
2906 }
2907
2908 /****************************************************************************
2909 Reply to a SMBnttranss
2910 ****************************************************************************/
2911
2912 void reply_nttranss(struct smb_request *req)
2913 {
2914 connection_struct *conn = req->conn;
2915 uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
2916 struct trans_state *state;
2917
2918 START_PROFILE(SMBnttranss);
2919
2920 show_msg((const char *)req->inbuf);
2921
2922 if (req->wct < 18) {
2923 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2924 END_PROFILE(SMBnttranss);
2925 return;
2926 }
2927
2928 for (state = conn->pending_trans; state != NULL;
2929 state = state->next) {
2930 if (state->mid == req->mid) {
2931 break;
2932 }
2933 }
2934
2935 if ((state == NULL) || (state->cmd != SMBnttrans)) {
2936 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2937 END_PROFILE(SMBnttranss);
2938 return;
2939 }
2940
2941 /* Revise state->total_param and state->total_data in case they have
2942 changed downwards */
2943 if (IVAL(req->vwv+1, 1) < state->total_param) {
2944 state->total_param = IVAL(req->vwv+1, 1);
2945 }
2946 if (IVAL(req->vwv+3, 1) < state->total_data) {
2947 state->total_data = IVAL(req->vwv+3, 1);
2948 }
2949
2950 pcnt = IVAL(req->vwv+5, 1);
2951 poff = IVAL(req->vwv+7, 1);
2952 pdisp = IVAL(req->vwv+9, 1);
2953
2954 dcnt = IVAL(req->vwv+11, 1);
2955 doff = IVAL(req->vwv+13, 1);
2956 ddisp = IVAL(req->vwv+15, 1);
2957
2958 state->received_param += pcnt;
2959 state->received_data += dcnt;
2960
2961 if ((state->received_data > state->total_data) ||
2962 (state->received_param > state->total_param))
2963 goto bad_param;
2964
2965 if (pcnt) {
2966 if (trans_oob(state->total_param, pdisp, pcnt)
2967 || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
2968 goto bad_param;
2969 }
2970 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
2971 }
2972
2973 if (dcnt) {
2974 if (trans_oob(state->total_data, ddisp, dcnt)
2975 || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
2976 goto bad_param;
2977 }
2978 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
2979 }
2980
2981 if ((state->received_param < state->total_param) ||
2982 (state->received_data < state->total_data)) {
2983 END_PROFILE(SMBnttranss);
2984 return;
2985 }
2986
2987 handle_nttrans(conn, state, req);
2988
2989 DLIST_REMOVE(conn->pending_trans, state);
2990 SAFE_FREE(state->data);
2991 SAFE_FREE(state->param);
2992 TALLOC_FREE(state);
2993 END_PROFILE(SMBnttranss);
2994 return;
2995
2996 bad_param:
2997
2998 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
2999 DLIST_REMOVE(conn->pending_trans, state);
3000 SAFE_FREE(state->data);
3001 SAFE_FREE(state->param);
3002 TALLOC_FREE(state);
3003 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3004 END_PROFILE(SMBnttranss);
3005 return;
3006 }
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