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smbd: change flag name from UCF_CREATING_FILE to UCF_PREP_CREATEFILE
[Samba.git] / source3 / smbd / nttrans.c
blobba842ad3fa41a33e162e495033aaaf6050cbe600
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 #include "lib/util_ea.h"
33
34 extern const struct generic_mapping file_generic_mapping;
35
36 static char *nttrans_realloc(char **ptr, size_t size)
37 {
38 if (ptr==NULL) {
39 smb_panic("nttrans_realloc() called with NULL ptr");
40 }
41
42 *ptr = (char *)SMB_REALLOC(*ptr, size);
43 if(*ptr == NULL) {
44 return NULL;
45 }
46 memset(*ptr,'\0',size);
47 return *ptr;
48 }
49
50 /****************************************************************************
51 Send the required number of replies back.
52 We assume all fields other than the data fields are
53 set correctly for the type of call.
54 HACK ! Always assumes smb_setup field is zero.
55 ****************************************************************************/
56
57 static void send_nt_replies(connection_struct *conn,
58 struct smb_request *req, NTSTATUS nt_error,
59 char *params, int paramsize,
60 char *pdata, int datasize)
61 {
62 int data_to_send = datasize;
63 int params_to_send = paramsize;
64 int useable_space;
65 char *pp = params;
66 char *pd = pdata;
67 int params_sent_thistime, data_sent_thistime, total_sent_thistime;
68 int alignment_offset = 1;
69 int data_alignment_offset = 0;
70 struct smbd_server_connection *sconn = req->sconn;
71 int max_send = sconn->smb1.sessions.max_send;
72
73 /*
74 * If there genuinely are no parameters or data to send just send
75 * the empty packet.
76 */
77
78 if(params_to_send == 0 && data_to_send == 0) {
79 reply_outbuf(req, 18, 0);
80 if (NT_STATUS_V(nt_error)) {
81 error_packet_set((char *)req->outbuf,
82 0, 0, nt_error,
83 __LINE__,__FILE__);
84 }
85 show_msg((char *)req->outbuf);
86 if (!srv_send_smb(sconn,
87 (char *)req->outbuf,
88 true, req->seqnum+1,
89 IS_CONN_ENCRYPTED(conn),
90 &req->pcd)) {
91 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
92 }
93 TALLOC_FREE(req->outbuf);
94 return;
95 }
96
97 /*
98 * When sending params and data ensure that both are nicely aligned.
99 * Only do this alignment when there is also data to send - else
100 * can cause NT redirector problems.
101 */
102
103 if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
104 data_alignment_offset = 4 - (params_to_send % 4);
105 }
106
107 /*
108 * Space is bufsize minus Netbios over TCP header minus SMB header.
109 * The alignment_offset is to align the param bytes on a four byte
110 * boundary (2 bytes for data len, one byte pad).
111 * NT needs this to work correctly.
112 */
113
114 useable_space = max_send - (smb_size
115 + 2 * 18 /* wct */
116 + alignment_offset
117 + data_alignment_offset);
118
119 if (useable_space < 0) {
120 char *msg = talloc_asprintf(
121 talloc_tos(),
122 "send_nt_replies failed sanity useable_space = %d!!!",
123 useable_space);
124 DEBUG(0, ("%s\n", msg));
125 exit_server_cleanly(msg);
126 }
127
128 while (params_to_send || data_to_send) {
129
130 /*
131 * Calculate whether we will totally or partially fill this packet.
132 */
133
134 total_sent_thistime = params_to_send + data_to_send;
135
136 /*
137 * We can never send more than useable_space.
138 */
139
140 total_sent_thistime = MIN(total_sent_thistime, useable_space);
141
142 reply_outbuf(req, 18,
143 total_sent_thistime + alignment_offset
144 + data_alignment_offset);
145
146 /*
147 * Set total params and data to be sent.
148 */
149
150 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
151 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
152
153 /*
154 * Calculate how many parameters and data we can fit into
155 * this packet. Parameters get precedence.
156 */
157
158 params_sent_thistime = MIN(params_to_send,useable_space);
159 data_sent_thistime = useable_space - params_sent_thistime;
160 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
161
162 SIVAL(req->outbuf, smb_ntr_ParameterCount,
163 params_sent_thistime);
164
165 if(params_sent_thistime == 0) {
166 SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
167 SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
168 } else {
169 /*
170 * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
171 * parameter bytes, however the first 4 bytes of outbuf are
172 * the Netbios over TCP header. Thus use smb_base() to subtract
173 * them from the calculation.
174 */
175
176 SIVAL(req->outbuf,smb_ntr_ParameterOffset,
177 ((smb_buf(req->outbuf)+alignment_offset)
178 - smb_base(req->outbuf)));
179 /*
180 * Absolute displacement of param bytes sent in this packet.
181 */
182
183 SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
184 pp - params);
185 }
186
187 /*
188 * Deal with the data portion.
189 */
190
191 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
192
193 if(data_sent_thistime == 0) {
194 SIVAL(req->outbuf,smb_ntr_DataOffset,0);
195 SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
196 } else {
197 /*
198 * The offset of the data bytes is the offset of the
199 * parameter bytes plus the number of parameters being sent this time.
200 */
201
202 SIVAL(req->outbuf, smb_ntr_DataOffset,
203 ((smb_buf(req->outbuf)+alignment_offset) -
204 smb_base(req->outbuf))
205 + params_sent_thistime + data_alignment_offset);
206 SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
207 }
208
209 /*
210 * Copy the param bytes into the packet.
211 */
212
213 if(params_sent_thistime) {
214 if (alignment_offset != 0) {
215 memset(smb_buf(req->outbuf), 0,
216 alignment_offset);
217 }
218 memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
219 params_sent_thistime);
220 }
221
222 /*
223 * Copy in the data bytes
224 */
225
226 if(data_sent_thistime) {
227 if (data_alignment_offset != 0) {
228 memset((smb_buf(req->outbuf)+alignment_offset+
229 params_sent_thistime), 0,
230 data_alignment_offset);
231 }
232 memcpy(smb_buf(req->outbuf)+alignment_offset
233 +params_sent_thistime+data_alignment_offset,
234 pd,data_sent_thistime);
235 }
236
237 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
238 params_sent_thistime, data_sent_thistime, useable_space));
239 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
240 params_to_send, data_to_send, paramsize, datasize));
241
242 if (NT_STATUS_V(nt_error)) {
243 error_packet_set((char *)req->outbuf,
244 0, 0, nt_error,
245 __LINE__,__FILE__);
246 }
247
248 /* Send the packet */
249 show_msg((char *)req->outbuf);
250 if (!srv_send_smb(sconn,
251 (char *)req->outbuf,
252 true, req->seqnum+1,
253 IS_CONN_ENCRYPTED(conn),
254 &req->pcd)) {
255 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
256 }
257
258 TALLOC_FREE(req->outbuf);
259
260 pp += params_sent_thistime;
261 pd += data_sent_thistime;
262
263 params_to_send -= params_sent_thistime;
264 data_to_send -= data_sent_thistime;
265
266 /*
267 * Sanity check
268 */
269
270 if(params_to_send < 0 || data_to_send < 0) {
271 DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
272 params_to_send, data_to_send));
273 exit_server_cleanly("send_nt_replies: internal error");
274 }
275 }
276 }
277
278 /****************************************************************************
279 Reply to an NT create and X call on a pipe
280 ****************************************************************************/
281
282 static void nt_open_pipe(char *fname, connection_struct *conn,
283 struct smb_request *req, uint16_t *ppnum)
284 {
285 files_struct *fsp;
286 NTSTATUS status;
287
288 DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
289
290 /* Strip \\ off the name if present. */
291 while (fname[0] == '\\') {
292 fname++;
293 }
294
295 status = open_np_file(req, fname, &fsp);
296 if (!NT_STATUS_IS_OK(status)) {
297 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
298 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
299 ERRDOS, ERRbadpipe);
300 return;
301 }
302 reply_nterror(req, status);
303 return;
304 }
305
306 *ppnum = fsp->fnum;
307 return;
308 }
309
310 /****************************************************************************
311 Reply to an NT create and X call for pipes.
312 ****************************************************************************/
313
314 static void do_ntcreate_pipe_open(connection_struct *conn,
315 struct smb_request *req)
316 {
317 char *fname = NULL;
318 uint16_t pnum = FNUM_FIELD_INVALID;
319 char *p = NULL;
320 uint32 flags = IVAL(req->vwv+3, 1);
321 TALLOC_CTX *ctx = talloc_tos();
322
323 srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
324
325 if (!fname) {
326 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
327 ERRDOS, ERRbadpipe);
328 return;
329 }
330 nt_open_pipe(fname, conn, req, &pnum);
331
332 if (req->outbuf) {
333 /* error reply */
334 return;
335 }
336
337 /*
338 * Deal with pipe return.
339 */
340
341 if (flags & EXTENDED_RESPONSE_REQUIRED) {
342 /* This is very strange. We
343 * return 50 words, but only set
344 * the wcnt to 42 ? It's definitely
345 * what happens on the wire....
346 */
347 reply_outbuf(req, 50, 0);
348 SCVAL(req->outbuf,smb_wct,42);
349 } else {
350 reply_outbuf(req, 34, 0);
351 }
352
353 SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
354 SSVAL(req->outbuf, smb_vwv1, 0); /* no andx offset */
355
356 p = (char *)req->outbuf + smb_vwv2;
357 p++;
358 SSVAL(p,0,pnum);
359 p += 2;
360 SIVAL(p,0,FILE_WAS_OPENED);
361 p += 4;
362 p += 32;
363 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
364 p += 20;
365 /* File type. */
366 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
367 /* Device state. */
368 SSVAL(p,2, 0x5FF); /* ? */
369 p += 4;
370
371 if (flags & EXTENDED_RESPONSE_REQUIRED) {
372 p += 25;
373 SIVAL(p,0,FILE_GENERIC_ALL);
374 /*
375 * For pipes W2K3 seems to return
376 * 0x12019B next.
377 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
378 */
379 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
380 }
381
382 DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
383 }
384
385 struct case_semantics_state {
386 connection_struct *conn;
387 bool case_sensitive;
388 bool case_preserve;
389 bool short_case_preserve;
390 };
391
392 /****************************************************************************
393 Restore case semantics.
394 ****************************************************************************/
395
396 static int restore_case_semantics(struct case_semantics_state *state)
397 {
398 state->conn->case_sensitive = state->case_sensitive;
399 state->conn->case_preserve = state->case_preserve;
400 state->conn->short_case_preserve = state->short_case_preserve;
401 return 0;
402 }
403
404 /****************************************************************************
405 Save case semantics.
406 ****************************************************************************/
407
408 static struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx,
409 connection_struct *conn)
410 {
411 struct case_semantics_state *result;
412
413 if (!(result = talloc(mem_ctx, struct case_semantics_state))) {
414 return NULL;
415 }
416
417 result->conn = conn;
418 result->case_sensitive = conn->case_sensitive;
419 result->case_preserve = conn->case_preserve;
420 result->short_case_preserve = conn->short_case_preserve;
421
422 /* Set to POSIX. */
423 conn->case_sensitive = True;
424 conn->case_preserve = True;
425 conn->short_case_preserve = True;
426
427 talloc_set_destructor(result, restore_case_semantics);
428
429 return result;
430 }
431
432 /****************************************************************************
433 Reply to an NT create and X call.
434 ****************************************************************************/
435
436 void reply_ntcreate_and_X(struct smb_request *req)
437 {
438 connection_struct *conn = req->conn;
439 struct smb_filename *smb_fname = NULL;
440 char *fname = NULL;
441 uint32 flags;
442 uint32 access_mask;
443 uint32 file_attributes;
444 uint32 share_access;
445 uint32 create_disposition;
446 uint32 create_options;
447 uint16 root_dir_fid;
448 uint64_t allocation_size;
449 /* Breakout the oplock request bits so we can set the
450 reply bits separately. */
451 uint32 fattr=0;
452 off_t file_len = 0;
453 int info = 0;
454 files_struct *fsp = NULL;
455 char *p = NULL;
456 struct timespec create_timespec;
457 struct timespec c_timespec;
458 struct timespec a_timespec;
459 struct timespec m_timespec;
460 struct timespec write_time_ts;
461 NTSTATUS status;
462 int oplock_request;
463 uint8_t oplock_granted = NO_OPLOCK_RETURN;
464 struct case_semantics_state *case_state = NULL;
465 TALLOC_CTX *ctx = talloc_tos();
466
467 START_PROFILE(SMBntcreateX);
468
469 if (req->wct < 24) {
470 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
471 goto out;
472 }
473
474 flags = IVAL(req->vwv+3, 1);
475 access_mask = IVAL(req->vwv+7, 1);
476 file_attributes = IVAL(req->vwv+13, 1);
477 share_access = IVAL(req->vwv+15, 1);
478 create_disposition = IVAL(req->vwv+17, 1);
479 create_options = IVAL(req->vwv+19, 1);
480 root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
481
482 allocation_size = BVAL(req->vwv+9, 1);
483
484 srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
485 STR_TERMINATE, &status);
486
487 if (!NT_STATUS_IS_OK(status)) {
488 reply_nterror(req, status);
489 goto out;
490 }
491
492 DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
493 "file_attributes = 0x%x, share_access = 0x%x, "
494 "create_disposition = 0x%x create_options = 0x%x "
495 "root_dir_fid = 0x%x, fname = %s\n",
496 (unsigned int)flags,
497 (unsigned int)access_mask,
498 (unsigned int)file_attributes,
499 (unsigned int)share_access,
500 (unsigned int)create_disposition,
501 (unsigned int)create_options,
502 (unsigned int)root_dir_fid,
503 fname));
504
505 /*
506 * we need to remove ignored bits when they come directly from the client
507 * because we reuse some of them for internal stuff
508 */
509 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
510
511 /*
512 * If it's an IPC, use the pipe handler.
513 */
514
515 if (IS_IPC(conn)) {
516 if (lp_nt_pipe_support()) {
517 do_ntcreate_pipe_open(conn, req);
518 goto out;
519 }
520 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
521 goto out;
522 }
523
524 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
525 if (oplock_request) {
526 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
527 ? BATCH_OPLOCK : 0;
528 }
529
530 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
531 case_state = set_posix_case_semantics(ctx, conn);
532 if (!case_state) {
533 reply_nterror(req, NT_STATUS_NO_MEMORY);
534 goto out;
535 }
536 }
537
538 status = filename_convert(ctx,
539 conn,
540 req->flags2 & FLAGS2_DFS_PATHNAMES,
541 fname,
542 (create_disposition == FILE_CREATE)
543 ? UCF_PREP_CREATEFILE : 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 definitely
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 SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
638 SSVAL(req->outbuf, smb_vwv1, 0); /* no andx offset */
639
640 p = (char *)req->outbuf + smb_vwv2;
641
642 SCVAL(p, 0, oplock_granted);
643
644 p++;
645 SSVAL(p,0,fsp->fnum);
646 p += 2;
647 if ((create_disposition == FILE_SUPERSEDE)
648 && (info == FILE_WAS_OVERWRITTEN)) {
649 SIVAL(p,0,FILE_WAS_SUPERSEDED);
650 } else {
651 SIVAL(p,0,info);
652 }
653 p += 4;
654
655 fattr = dos_mode(conn, smb_fname);
656 if (fattr == 0) {
657 fattr = FILE_ATTRIBUTE_NORMAL;
658 }
659
660 /* Deal with other possible opens having a modified
661 write time. JRA. */
662 ZERO_STRUCT(write_time_ts);
663 get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
664 if (!null_timespec(write_time_ts)) {
665 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
666 }
667
668 /* Create time. */
669 create_timespec = get_create_timespec(conn, fsp, smb_fname);
670 a_timespec = smb_fname->st.st_ex_atime;
671 m_timespec = smb_fname->st.st_ex_mtime;
672 c_timespec = get_change_timespec(conn, fsp, smb_fname);
673
674 if (lp_dos_filetime_resolution(SNUM(conn))) {
675 dos_filetime_timespec(&create_timespec);
676 dos_filetime_timespec(&a_timespec);
677 dos_filetime_timespec(&m_timespec);
678 dos_filetime_timespec(&c_timespec);
679 }
680
681 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
682 p += 8;
683 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
684 p += 8;
685 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
686 p += 8;
687 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
688 p += 8;
689 SIVAL(p,0,fattr); /* File Attributes. */
690 p += 4;
691 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
692 p += 8;
693 SOFF_T(p,0,file_len);
694 p += 8;
695 if (flags & EXTENDED_RESPONSE_REQUIRED) {
696 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
697 size_t num_names = 0;
698 unsigned int num_streams = 0;
699 struct stream_struct *streams = NULL;
700
701 /* Do we have any EA's ? */
702 status = get_ea_names_from_file(ctx, conn, fsp,
703 smb_fname->base_name, NULL, &num_names);
704 if (NT_STATUS_IS_OK(status) && num_names) {
705 file_status &= ~NO_EAS;
706 }
707 status = vfs_streaminfo(conn, NULL, smb_fname->base_name, ctx,
708 &num_streams, &streams);
709 /* There is always one stream, ::$DATA. */
710 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
711 file_status &= ~NO_SUBSTREAMS;
712 }
713 TALLOC_FREE(streams);
714 SSVAL(p,2,file_status);
715 }
716 p += 4;
717 SCVAL(p,0,fsp->is_directory ? 1 : 0);
718
719 if (flags & EXTENDED_RESPONSE_REQUIRED) {
720 uint32 perms = 0;
721 p += 25;
722 if (fsp->is_directory ||
723 fsp->can_write ||
724 can_write_to_file(conn, smb_fname)) {
725 perms = FILE_GENERIC_ALL;
726 } else {
727 perms = FILE_GENERIC_READ|FILE_EXECUTE;
728 }
729 SIVAL(p,0,perms);
730 }
731
732 DEBUG(5,("reply_ntcreate_and_X: %s, open name = %s\n",
733 fsp_fnum_dbg(fsp), smb_fname_str_dbg(smb_fname)));
734
735 out:
736 END_PROFILE(SMBntcreateX);
737 return;
738 }
739
740 /****************************************************************************
741 Reply to a NT_TRANSACT_CREATE call to open a pipe.
742 ****************************************************************************/
743
744 static void do_nt_transact_create_pipe(connection_struct *conn,
745 struct smb_request *req,
746 uint16 **ppsetup, uint32 setup_count,
747 char **ppparams, uint32 parameter_count,
748 char **ppdata, uint32 data_count)
749 {
750 char *fname = NULL;
751 char *params = *ppparams;
752 uint16_t pnum = FNUM_FIELD_INVALID;
753 char *p = NULL;
754 NTSTATUS status;
755 size_t param_len;
756 uint32 flags;
757 TALLOC_CTX *ctx = talloc_tos();
758
759 /*
760 * Ensure minimum number of parameters sent.
761 */
762
763 if(parameter_count < 54) {
764 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
765 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
766 return;
767 }
768
769 flags = IVAL(params,0);
770
771 srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
772 parameter_count-53, STR_TERMINATE,
773 &status);
774 if (!NT_STATUS_IS_OK(status)) {
775 reply_nterror(req, status);
776 return;
777 }
778
779 nt_open_pipe(fname, conn, req, &pnum);
780
781 if (req->outbuf) {
782 /* Error return */
783 return;
784 }
785
786 /* Realloc the size of parameters and data we will return */
787 if (flags & EXTENDED_RESPONSE_REQUIRED) {
788 /* Extended response is 32 more byyes. */
789 param_len = 101;
790 } else {
791 param_len = 69;
792 }
793 params = nttrans_realloc(ppparams, param_len);
794 if(params == NULL) {
795 reply_nterror(req, NT_STATUS_NO_MEMORY);
796 return;
797 }
798
799 p = params;
800 SCVAL(p,0,NO_OPLOCK_RETURN);
801
802 p += 2;
803 SSVAL(p,0,pnum);
804 p += 2;
805 SIVAL(p,0,FILE_WAS_OPENED);
806 p += 8;
807
808 p += 32;
809 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
810 p += 20;
811 /* File type. */
812 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
813 /* Device state. */
814 SSVAL(p,2, 0x5FF); /* ? */
815 p += 4;
816
817 if (flags & EXTENDED_RESPONSE_REQUIRED) {
818 p += 25;
819 SIVAL(p,0,FILE_GENERIC_ALL);
820 /*
821 * For pipes W2K3 seems to return
822 * 0x12019B next.
823 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
824 */
825 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
826 }
827
828 DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
829
830 /* Send the required number of replies */
831 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
832
833 return;
834 }
835
836 /*********************************************************************
837 Windows seems to do canonicalization of inheritance bits. Do the
838 same.
839 *********************************************************************/
840
841 static void canonicalize_inheritance_bits(struct security_descriptor *psd)
842 {
843 bool set_auto_inherited = false;
844
845 /*
846 * We need to filter out the
847 * SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ
848 * bits. If both are set we store SEC_DESC_DACL_AUTO_INHERITED
849 * as this alters whether SEC_ACE_FLAG_INHERITED_ACE is set
850 * when an ACE is inherited. Otherwise we zero these bits out.
851 * See:
852 *
853 * http://social.msdn.microsoft.com/Forums/eu/os_fileservices/thread/11f77b68-731e-407d-b1b3-064750716531
854 *
855 * for details.
856 */
857
858 if ((psd->type & (SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ))
859 == (SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ)) {
860 set_auto_inherited = true;
861 }
862
863 psd->type &= ~(SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ);
864 if (set_auto_inherited) {
865 psd->type |= SEC_DESC_DACL_AUTO_INHERITED;
866 }
867 }
868
869 /****************************************************************************
870 Internal fn to set security descriptors.
871 ****************************************************************************/
872
873 NTSTATUS set_sd(files_struct *fsp, struct security_descriptor *psd,
874 uint32_t security_info_sent)
875 {
876 NTSTATUS status;
877
878 if (!CAN_WRITE(fsp->conn)) {
879 return NT_STATUS_ACCESS_DENIED;
880 }
881
882 if (!lp_nt_acl_support(SNUM(fsp->conn))) {
883 return NT_STATUS_OK;
884 }
885
886 if (psd->owner_sid == NULL) {
887 security_info_sent &= ~SECINFO_OWNER;
888 }
889 if (psd->group_sid == NULL) {
890 security_info_sent &= ~SECINFO_GROUP;
891 }
892
893 /* Ensure we have at least one thing set. */
894 if ((security_info_sent & (SECINFO_OWNER|SECINFO_GROUP|SECINFO_DACL|SECINFO_SACL)) == 0) {
895 /* Just like W2K3 */
896 return NT_STATUS_OK;
897 }
898
899 /* Ensure we have the rights to do this. */
900 if (security_info_sent & SECINFO_OWNER) {
901 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
902 return NT_STATUS_ACCESS_DENIED;
903 }
904 }
905
906 if (security_info_sent & SECINFO_GROUP) {
907 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
908 return NT_STATUS_ACCESS_DENIED;
909 }
910 }
911
912 if (security_info_sent & SECINFO_DACL) {
913 if (!(fsp->access_mask & SEC_STD_WRITE_DAC)) {
914 return NT_STATUS_ACCESS_DENIED;
915 }
916 /* Convert all the generic bits. */
917 if (psd->dacl) {
918 security_acl_map_generic(psd->dacl, &file_generic_mapping);
919 }
920 }
921
922 if (security_info_sent & SECINFO_SACL) {
923 if (!(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
924 return NT_STATUS_ACCESS_DENIED;
925 }
926 /* Convert all the generic bits. */
927 if (psd->sacl) {
928 security_acl_map_generic(psd->sacl, &file_generic_mapping);
929 }
930 }
931
932 canonicalize_inheritance_bits(psd);
933
934 if (DEBUGLEVEL >= 10) {
935 DEBUG(10,("set_sd for file %s\n", fsp_str_dbg(fsp)));
936 NDR_PRINT_DEBUG(security_descriptor, psd);
937 }
938
939 status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
940
941 TALLOC_FREE(psd);
942
943 return status;
944 }
945
946 /****************************************************************************
947 Internal fn to set security descriptors from a data blob.
948 ****************************************************************************/
949
950 NTSTATUS set_sd_blob(files_struct *fsp, uint8_t *data, uint32_t sd_len,
951 uint32_t security_info_sent)
952 {
953 struct security_descriptor *psd = NULL;
954 NTSTATUS status;
955
956 if (sd_len == 0) {
957 return NT_STATUS_INVALID_PARAMETER;
958 }
959
960 status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
961
962 if (!NT_STATUS_IS_OK(status)) {
963 return status;
964 }
965
966 return set_sd(fsp, psd, security_info_sent);
967 }
968
969 /****************************************************************************
970 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
971 ****************************************************************************/
972
973 static void call_nt_transact_create(connection_struct *conn,
974 struct smb_request *req,
975 uint16 **ppsetup, uint32 setup_count,
976 char **ppparams, uint32 parameter_count,
977 char **ppdata, uint32 data_count,
978 uint32 max_data_count)
979 {
980 struct smb_filename *smb_fname = NULL;
981 char *fname = NULL;
982 char *params = *ppparams;
983 char *data = *ppdata;
984 /* Breakout the oplock request bits so we can set the reply bits separately. */
985 uint32 fattr=0;
986 off_t file_len = 0;
987 int info = 0;
988 files_struct *fsp = NULL;
989 char *p = NULL;
990 uint32 flags;
991 uint32 access_mask;
992 uint32 file_attributes;
993 uint32 share_access;
994 uint32 create_disposition;
995 uint32 create_options;
996 uint32 sd_len;
997 struct security_descriptor *sd = NULL;
998 uint32 ea_len;
999 uint16 root_dir_fid;
1000 struct timespec create_timespec;
1001 struct timespec c_timespec;
1002 struct timespec a_timespec;
1003 struct timespec m_timespec;
1004 struct timespec write_time_ts;
1005 struct ea_list *ea_list = NULL;
1006 NTSTATUS status;
1007 size_t param_len;
1008 uint64_t allocation_size;
1009 int oplock_request;
1010 uint8_t oplock_granted;
1011 struct case_semantics_state *case_state = NULL;
1012 TALLOC_CTX *ctx = talloc_tos();
1013
1014 DEBUG(5,("call_nt_transact_create\n"));
1015
1016 /*
1017 * If it's an IPC, use the pipe handler.
1018 */
1019
1020 if (IS_IPC(conn)) {
1021 if (lp_nt_pipe_support()) {
1022 do_nt_transact_create_pipe(
1023 conn, req,
1024 ppsetup, setup_count,
1025 ppparams, parameter_count,
1026 ppdata, data_count);
1027 goto out;
1028 }
1029 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1030 goto out;
1031 }
1032
1033 /*
1034 * Ensure minimum number of parameters sent.
1035 */
1036
1037 if(parameter_count < 54) {
1038 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1039 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1040 goto out;
1041 }
1042
1043 flags = IVAL(params,0);
1044 access_mask = IVAL(params,8);
1045 file_attributes = IVAL(params,20);
1046 share_access = IVAL(params,24);
1047 create_disposition = IVAL(params,28);
1048 create_options = IVAL(params,32);
1049 sd_len = IVAL(params,36);
1050 ea_len = IVAL(params,40);
1051 root_dir_fid = (uint16)IVAL(params,4);
1052 allocation_size = BVAL(params,12);
1053
1054 /*
1055 * we need to remove ignored bits when they come directly from the client
1056 * because we reuse some of them for internal stuff
1057 */
1058 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
1059
1060 srvstr_get_path(ctx, params, req->flags2, &fname,
1061 params+53, parameter_count-53,
1062 STR_TERMINATE, &status);
1063 if (!NT_STATUS_IS_OK(status)) {
1064 reply_nterror(req, status);
1065 goto out;
1066 }
1067
1068 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
1069 case_state = set_posix_case_semantics(ctx, conn);
1070 if (!case_state) {
1071 reply_nterror(req, NT_STATUS_NO_MEMORY);
1072 goto out;
1073 }
1074 }
1075
1076 status = filename_convert(ctx,
1077 conn,
1078 req->flags2 & FLAGS2_DFS_PATHNAMES,
1079 fname,
1080 (create_disposition == FILE_CREATE)
1081 ? UCF_PREP_CREATEFILE : 0,
1082 NULL,
1083 &smb_fname);
1084
1085 TALLOC_FREE(case_state);
1086
1087 if (!NT_STATUS_IS_OK(status)) {
1088 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1089 reply_botherror(req,
1090 NT_STATUS_PATH_NOT_COVERED,
1091 ERRSRV, ERRbadpath);
1092 goto out;
1093 }
1094 reply_nterror(req, status);
1095 goto out;
1096 }
1097
1098 /* Ensure the data_len is correct for the sd and ea values given. */
1099 if ((ea_len + sd_len > data_count)
1100 || (ea_len > data_count) || (sd_len > data_count)
1101 || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
1102 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
1103 "%u, data_count = %u\n", (unsigned int)ea_len,
1104 (unsigned int)sd_len, (unsigned int)data_count));
1105 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1106 goto out;
1107 }
1108
1109 if (sd_len) {
1110 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
1111 sd_len));
1112
1113 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
1114 &sd);
1115 if (!NT_STATUS_IS_OK(status)) {
1116 DEBUG(10, ("call_nt_transact_create: "
1117 "unmarshall_sec_desc failed: %s\n",
1118 nt_errstr(status)));
1119 reply_nterror(req, status);
1120 goto out;
1121 }
1122 }
1123
1124 if (ea_len) {
1125 if (!lp_ea_support(SNUM(conn))) {
1126 DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
1127 "EA's not supported.\n",
1128 (unsigned int)ea_len));
1129 reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
1130 goto out;
1131 }
1132
1133 if (ea_len < 10) {
1134 DEBUG(10,("call_nt_transact_create - ea_len = %u - "
1135 "too small (should be more than 10)\n",
1136 (unsigned int)ea_len ));
1137 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1138 goto out;
1139 }
1140
1141 /* We have already checked that ea_len <= data_count here. */
1142 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
1143 ea_len);
1144 if (ea_list == NULL) {
1145 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1146 goto out;
1147 }
1148
1149 if (ea_list_has_invalid_name(ea_list)) {
1150 /* Realloc the size of parameters and data we will return */
1151 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1152 /* Extended response is 32 more byyes. */
1153 param_len = 101;
1154 } else {
1155 param_len = 69;
1156 }
1157 params = nttrans_realloc(ppparams, param_len);
1158 if(params == NULL) {
1159 reply_nterror(req, NT_STATUS_NO_MEMORY);
1160 goto out;
1161 }
1162
1163 memset(params, '\0', param_len);
1164 send_nt_replies(conn, req, STATUS_INVALID_EA_NAME,
1165 params, param_len, NULL, 0);
1166 goto out;
1167 }
1168 }
1169
1170 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1171 if (oplock_request) {
1172 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1173 ? BATCH_OPLOCK : 0;
1174 }
1175
1176 /*
1177 * Bug #6898 - clients using Windows opens should
1178 * never be able to set this attribute into the
1179 * VFS.
1180 */
1181 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
1182
1183 status = SMB_VFS_CREATE_FILE(
1184 conn, /* conn */
1185 req, /* req */
1186 root_dir_fid, /* root_dir_fid */
1187 smb_fname, /* fname */
1188 access_mask, /* access_mask */
1189 share_access, /* share_access */
1190 create_disposition, /* create_disposition*/
1191 create_options, /* create_options */
1192 file_attributes, /* file_attributes */
1193 oplock_request, /* oplock_request */
1194 allocation_size, /* allocation_size */
1195 0, /* private_flags */
1196 sd, /* sd */
1197 ea_list, /* ea_list */
1198 &fsp, /* result */
1199 &info); /* pinfo */
1200
1201 if(!NT_STATUS_IS_OK(status)) {
1202 if (open_was_deferred(req->sconn, req->mid)) {
1203 /* We have re-scheduled this call, no error. */
1204 return;
1205 }
1206 reply_openerror(req, status);
1207 goto out;
1208 }
1209
1210 /* Ensure we're pointing at the correct stat struct. */
1211 TALLOC_FREE(smb_fname);
1212 smb_fname = fsp->fsp_name;
1213
1214 /*
1215 * If the caller set the extended oplock request bit
1216 * and we granted one (by whatever means) - set the
1217 * correct bit for extended oplock reply.
1218 */
1219
1220 if (oplock_request &&
1221 (lp_fake_oplocks(SNUM(conn))
1222 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1223
1224 /*
1225 * Exclusive oplock granted
1226 */
1227
1228 if (flags & REQUEST_BATCH_OPLOCK) {
1229 oplock_granted = BATCH_OPLOCK_RETURN;
1230 } else {
1231 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1232 }
1233 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1234 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1235 } else {
1236 oplock_granted = NO_OPLOCK_RETURN;
1237 }
1238
1239 file_len = smb_fname->st.st_ex_size;
1240
1241 /* Realloc the size of parameters and data we will return */
1242 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1243 /* Extended response is 32 more byyes. */
1244 param_len = 101;
1245 } else {
1246 param_len = 69;
1247 }
1248 params = nttrans_realloc(ppparams, param_len);
1249 if(params == NULL) {
1250 reply_nterror(req, NT_STATUS_NO_MEMORY);
1251 goto out;
1252 }
1253
1254 p = params;
1255 SCVAL(p, 0, oplock_granted);
1256
1257 p += 2;
1258 SSVAL(p,0,fsp->fnum);
1259 p += 2;
1260 if ((create_disposition == FILE_SUPERSEDE)
1261 && (info == FILE_WAS_OVERWRITTEN)) {
1262 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1263 } else {
1264 SIVAL(p,0,info);
1265 }
1266 p += 8;
1267
1268 fattr = dos_mode(conn, smb_fname);
1269 if (fattr == 0) {
1270 fattr = FILE_ATTRIBUTE_NORMAL;
1271 }
1272
1273 /* Deal with other possible opens having a modified
1274 write time. JRA. */
1275 ZERO_STRUCT(write_time_ts);
1276 get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
1277 if (!null_timespec(write_time_ts)) {
1278 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
1279 }
1280
1281 /* Create time. */
1282 create_timespec = get_create_timespec(conn, fsp, smb_fname);
1283 a_timespec = smb_fname->st.st_ex_atime;
1284 m_timespec = smb_fname->st.st_ex_mtime;
1285 c_timespec = get_change_timespec(conn, fsp, smb_fname);
1286
1287 if (lp_dos_filetime_resolution(SNUM(conn))) {
1288 dos_filetime_timespec(&create_timespec);
1289 dos_filetime_timespec(&a_timespec);
1290 dos_filetime_timespec(&m_timespec);
1291 dos_filetime_timespec(&c_timespec);
1292 }
1293
1294 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
1295 p += 8;
1296 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
1297 p += 8;
1298 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
1299 p += 8;
1300 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
1301 p += 8;
1302 SIVAL(p,0,fattr); /* File Attributes. */
1303 p += 4;
1304 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1305 p += 8;
1306 SOFF_T(p,0,file_len);
1307 p += 8;
1308 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1309 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
1310 size_t num_names = 0;
1311 unsigned int num_streams = 0;
1312 struct stream_struct *streams = NULL;
1313
1314 /* Do we have any EA's ? */
1315 status = get_ea_names_from_file(ctx, conn, fsp,
1316 smb_fname->base_name, NULL, &num_names);
1317 if (NT_STATUS_IS_OK(status) && num_names) {
1318 file_status &= ~NO_EAS;
1319 }
1320 status = vfs_streaminfo(conn, NULL, smb_fname->base_name, ctx,
1321 &num_streams, &streams);
1322 /* There is always one stream, ::$DATA. */
1323 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
1324 file_status &= ~NO_SUBSTREAMS;
1325 }
1326 TALLOC_FREE(streams);
1327 SSVAL(p,2,file_status);
1328 }
1329 p += 4;
1330 SCVAL(p,0,fsp->is_directory ? 1 : 0);
1331
1332 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1333 uint32 perms = 0;
1334 p += 25;
1335 if (fsp->is_directory ||
1336 fsp->can_write ||
1337 can_write_to_file(conn, smb_fname)) {
1338 perms = FILE_GENERIC_ALL;
1339 } else {
1340 perms = FILE_GENERIC_READ|FILE_EXECUTE;
1341 }
1342 SIVAL(p,0,perms);
1343 }
1344
1345 DEBUG(5,("call_nt_transact_create: open name = %s\n",
1346 smb_fname_str_dbg(smb_fname)));
1347
1348 /* Send the required number of replies */
1349 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1350 out:
1351 return;
1352 }
1353
1354 /****************************************************************************
1355 Reply to a NT CANCEL request.
1356 conn POINTER CAN BE NULL HERE !
1357 ****************************************************************************/
1358
1359 void reply_ntcancel(struct smb_request *req)
1360 {
1361 /*
1362 * Go through and cancel any pending change notifies.
1363 */
1364
1365 START_PROFILE(SMBntcancel);
1366 srv_cancel_sign_response(req->sconn);
1367 remove_pending_change_notify_requests_by_mid(req->sconn, req->mid);
1368 remove_pending_lock_requests_by_mid_smb1(req->sconn, req->mid);
1369
1370 DEBUG(3,("reply_ntcancel: cancel called on mid = %llu.\n",
1371 (unsigned long long)req->mid));
1372
1373 END_PROFILE(SMBntcancel);
1374 return;
1375 }
1376
1377 /****************************************************************************
1378 Copy a file.
1379 ****************************************************************************/
1380
1381 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1382 connection_struct *conn,
1383 struct smb_request *req,
1384 struct smb_filename *smb_fname_src,
1385 struct smb_filename *smb_fname_dst,
1386 uint32 attrs)
1387 {
1388 files_struct *fsp1,*fsp2;
1389 uint32 fattr;
1390 int info;
1391 off_t ret=-1;
1392 NTSTATUS status = NT_STATUS_OK;
1393 char *parent;
1394
1395 if (!CAN_WRITE(conn)) {
1396 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1397 goto out;
1398 }
1399
1400 /* Source must already exist. */
1401 if (!VALID_STAT(smb_fname_src->st)) {
1402 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1403 goto out;
1404 }
1405
1406 /* Ensure attributes match. */
1407 fattr = dos_mode(conn, smb_fname_src);
1408 if ((fattr & ~attrs) & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) {
1409 status = NT_STATUS_NO_SUCH_FILE;
1410 goto out;
1411 }
1412
1413 /* Disallow if dst file already exists. */
1414 if (VALID_STAT(smb_fname_dst->st)) {
1415 status = NT_STATUS_OBJECT_NAME_COLLISION;
1416 goto out;
1417 }
1418
1419 /* No links from a directory. */
1420 if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1421 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1422 goto out;
1423 }
1424
1425 DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1426 smb_fname_str_dbg(smb_fname_src),
1427 smb_fname_str_dbg(smb_fname_dst)));
1428
1429 status = SMB_VFS_CREATE_FILE(
1430 conn, /* conn */
1431 req, /* req */
1432 0, /* root_dir_fid */
1433 smb_fname_src, /* fname */
1434 FILE_READ_DATA|FILE_READ_ATTRIBUTES|
1435 FILE_READ_EA, /* access_mask */
1436 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1437 FILE_SHARE_DELETE),
1438 FILE_OPEN, /* create_disposition*/
1439 0, /* create_options */
1440 FILE_ATTRIBUTE_NORMAL, /* file_attributes */
1441 NO_OPLOCK, /* oplock_request */
1442 0, /* allocation_size */
1443 0, /* private_flags */
1444 NULL, /* sd */
1445 NULL, /* ea_list */
1446 &fsp1, /* result */
1447 &info); /* pinfo */
1448
1449 if (!NT_STATUS_IS_OK(status)) {
1450 goto out;
1451 }
1452
1453 status = SMB_VFS_CREATE_FILE(
1454 conn, /* conn */
1455 req, /* req */
1456 0, /* root_dir_fid */
1457 smb_fname_dst, /* fname */
1458 FILE_WRITE_DATA|FILE_WRITE_ATTRIBUTES|
1459 FILE_WRITE_EA, /* access_mask */
1460 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1461 FILE_SHARE_DELETE),
1462 FILE_CREATE, /* create_disposition*/
1463 0, /* create_options */
1464 fattr, /* file_attributes */
1465 NO_OPLOCK, /* oplock_request */
1466 0, /* allocation_size */
1467 0, /* private_flags */
1468 NULL, /* sd */
1469 NULL, /* ea_list */
1470 &fsp2, /* result */
1471 &info); /* pinfo */
1472
1473 if (!NT_STATUS_IS_OK(status)) {
1474 close_file(NULL, fsp1, ERROR_CLOSE);
1475 goto out;
1476 }
1477
1478 if (smb_fname_src->st.st_ex_size) {
1479 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1480 }
1481
1482 /*
1483 * As we are opening fsp1 read-only we only expect
1484 * an error on close on fsp2 if we are out of space.
1485 * Thus we don't look at the error return from the
1486 * close of fsp1.
1487 */
1488 close_file(NULL, fsp1, NORMAL_CLOSE);
1489
1490 /* Ensure the modtime is set correctly on the destination file. */
1491 set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1492
1493 status = close_file(NULL, fsp2, NORMAL_CLOSE);
1494
1495 /* Grrr. We have to do this as open_file_ntcreate adds FILE_ATTRIBUTE_ARCHIVE when it
1496 creates the file. This isn't the correct thing to do in the copy
1497 case. JRA */
1498 if (!parent_dirname(talloc_tos(), smb_fname_dst->base_name, &parent,
1499 NULL)) {
1500 status = NT_STATUS_NO_MEMORY;
1501 goto out;
1502 }
1503 file_set_dosmode(conn, smb_fname_dst, fattr, parent, false);
1504 TALLOC_FREE(parent);
1505
1506 if (ret < (off_t)smb_fname_src->st.st_ex_size) {
1507 status = NT_STATUS_DISK_FULL;
1508 goto out;
1509 }
1510 out:
1511 if (!NT_STATUS_IS_OK(status)) {
1512 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1513 nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1514 smb_fname_str_dbg(smb_fname_dst)));
1515 }
1516
1517 return status;
1518 }
1519
1520 /****************************************************************************
1521 Reply to a NT rename request.
1522 ****************************************************************************/
1523
1524 void reply_ntrename(struct smb_request *req)
1525 {
1526 connection_struct *conn = req->conn;
1527 struct smb_filename *smb_fname_old = NULL;
1528 struct smb_filename *smb_fname_new = NULL;
1529 char *oldname = NULL;
1530 char *newname = NULL;
1531 const char *p;
1532 NTSTATUS status;
1533 bool src_has_wcard = False;
1534 bool dest_has_wcard = False;
1535 uint32 attrs;
1536 uint32_t ucf_flags_src = 0;
1537 uint32_t ucf_flags_dst = 0;
1538 uint16 rename_type;
1539 TALLOC_CTX *ctx = talloc_tos();
1540 bool stream_rename = false;
1541
1542 START_PROFILE(SMBntrename);
1543
1544 if (req->wct < 4) {
1545 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1546 goto out;
1547 }
1548
1549 attrs = SVAL(req->vwv+0, 0);
1550 rename_type = SVAL(req->vwv+1, 0);
1551
1552 p = (const char *)req->buf + 1;
1553 p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1554 &status, &src_has_wcard);
1555 if (!NT_STATUS_IS_OK(status)) {
1556 reply_nterror(req, status);
1557 goto out;
1558 }
1559
1560 if (ms_has_wild(oldname)) {
1561 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1562 goto out;
1563 }
1564
1565 p++;
1566 p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1567 &status, &dest_has_wcard);
1568 if (!NT_STATUS_IS_OK(status)) {
1569 reply_nterror(req, status);
1570 goto out;
1571 }
1572
1573 if (!lp_posix_pathnames()) {
1574 /* The newname must begin with a ':' if the
1575 oldname contains a ':'. */
1576 if (strchr_m(oldname, ':')) {
1577 if (newname[0] != ':') {
1578 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1579 goto out;
1580 }
1581 stream_rename = true;
1582 }
1583 }
1584
1585 /*
1586 * If this is a rename operation, allow wildcards and save the
1587 * destination's last component.
1588 */
1589 if (rename_type == RENAME_FLAG_RENAME) {
1590 ucf_flags_src = UCF_COND_ALLOW_WCARD_LCOMP;
1591 ucf_flags_dst = UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1592 }
1593
1594 /* rename_internals() calls unix_convert(), so don't call it here. */
1595 status = filename_convert(ctx, conn,
1596 req->flags2 & FLAGS2_DFS_PATHNAMES,
1597 oldname,
1598 ucf_flags_src,
1599 NULL,
1600 &smb_fname_old);
1601 if (!NT_STATUS_IS_OK(status)) {
1602 if (NT_STATUS_EQUAL(status,
1603 NT_STATUS_PATH_NOT_COVERED)) {
1604 reply_botherror(req,
1605 NT_STATUS_PATH_NOT_COVERED,
1606 ERRSRV, ERRbadpath);
1607 goto out;
1608 }
1609 reply_nterror(req, status);
1610 goto out;
1611 }
1612
1613 status = filename_convert(ctx, conn,
1614 req->flags2 & FLAGS2_DFS_PATHNAMES,
1615 newname,
1616 ucf_flags_dst,
1617 &dest_has_wcard,
1618 &smb_fname_new);
1619 if (!NT_STATUS_IS_OK(status)) {
1620 if (NT_STATUS_EQUAL(status,
1621 NT_STATUS_PATH_NOT_COVERED)) {
1622 reply_botherror(req,
1623 NT_STATUS_PATH_NOT_COVERED,
1624 ERRSRV, ERRbadpath);
1625 goto out;
1626 }
1627 reply_nterror(req, status);
1628 goto out;
1629 }
1630
1631 if (stream_rename) {
1632 /* smb_fname_new must be the same as smb_fname_old. */
1633 TALLOC_FREE(smb_fname_new->base_name);
1634 smb_fname_new->base_name = talloc_strdup(smb_fname_new,
1635 smb_fname_old->base_name);
1636 if (!smb_fname_new->base_name) {
1637 reply_nterror(req, NT_STATUS_NO_MEMORY);
1638 goto out;
1639 }
1640 }
1641
1642 DEBUG(3,("reply_ntrename: %s -> %s\n",
1643 smb_fname_str_dbg(smb_fname_old),
1644 smb_fname_str_dbg(smb_fname_new)));
1645
1646 switch(rename_type) {
1647 case RENAME_FLAG_RENAME:
1648 status = rename_internals(ctx, conn, req,
1649 smb_fname_old, smb_fname_new,
1650 attrs, False, src_has_wcard,
1651 dest_has_wcard,
1652 DELETE_ACCESS);
1653 break;
1654 case RENAME_FLAG_HARD_LINK:
1655 if (src_has_wcard || dest_has_wcard) {
1656 /* No wildcards. */
1657 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1658 } else {
1659 status = hardlink_internals(ctx, conn,
1660 req,
1661 false,
1662 smb_fname_old,
1663 smb_fname_new);
1664 }
1665 break;
1666 case RENAME_FLAG_COPY:
1667 if (src_has_wcard || dest_has_wcard) {
1668 /* No wildcards. */
1669 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1670 } else {
1671 status = copy_internals(ctx, conn, req,
1672 smb_fname_old,
1673 smb_fname_new,
1674 attrs);
1675 }
1676 break;
1677 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1678 status = NT_STATUS_INVALID_PARAMETER;
1679 break;
1680 default:
1681 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1682 break;
1683 }
1684
1685 if (!NT_STATUS_IS_OK(status)) {
1686 if (open_was_deferred(req->sconn, req->mid)) {
1687 /* We have re-scheduled this call. */
1688 goto out;
1689 }
1690
1691 reply_nterror(req, status);
1692 goto out;
1693 }
1694
1695 reply_outbuf(req, 0, 0);
1696 out:
1697 END_PROFILE(SMBntrename);
1698 return;
1699 }
1700
1701 /****************************************************************************
1702 Reply to a notify change - queue the request and
1703 don't allow a directory to be opened.
1704 ****************************************************************************/
1705
1706 static void smbd_smb1_notify_reply(struct smb_request *req,
1707 NTSTATUS error_code,
1708 uint8_t *buf, size_t len)
1709 {
1710 send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1711 }
1712
1713 static void call_nt_transact_notify_change(connection_struct *conn,
1714 struct smb_request *req,
1715 uint16 **ppsetup,
1716 uint32 setup_count,
1717 char **ppparams,
1718 uint32 parameter_count,
1719 char **ppdata, uint32 data_count,
1720 uint32 max_data_count,
1721 uint32 max_param_count)
1722 {
1723 uint16 *setup = *ppsetup;
1724 files_struct *fsp;
1725 uint32 filter;
1726 NTSTATUS status;
1727 bool recursive;
1728
1729 if(setup_count < 6) {
1730 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1731 return;
1732 }
1733
1734 fsp = file_fsp(req, SVAL(setup,4));
1735 filter = IVAL(setup, 0);
1736 recursive = (SVAL(setup, 6) != 0) ? True : False;
1737
1738 DEBUG(3,("call_nt_transact_notify_change\n"));
1739
1740 if(!fsp) {
1741 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1742 return;
1743 }
1744
1745 {
1746 char *filter_string;
1747
1748 if (!(filter_string = notify_filter_string(NULL, filter))) {
1749 reply_nterror(req,NT_STATUS_NO_MEMORY);
1750 return;
1751 }
1752
1753 DEBUG(3,("call_nt_transact_notify_change: notify change "
1754 "called on %s, filter = %s, recursive = %d\n",
1755 fsp_str_dbg(fsp), filter_string, recursive));
1756
1757 TALLOC_FREE(filter_string);
1758 }
1759
1760 if((!fsp->is_directory) || (conn != fsp->conn)) {
1761 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1762 return;
1763 }
1764
1765 if (fsp->notify == NULL) {
1766
1767 status = change_notify_create(fsp, filter, recursive);
1768
1769 if (!NT_STATUS_IS_OK(status)) {
1770 DEBUG(10, ("change_notify_create returned %s\n",
1771 nt_errstr(status)));
1772 reply_nterror(req, status);
1773 return;
1774 }
1775 }
1776
1777 if (change_notify_fsp_has_changes(fsp)) {
1778
1779 /*
1780 * We've got changes pending, respond immediately
1781 */
1782
1783 /*
1784 * TODO: write a torture test to check the filtering behaviour
1785 * here.
1786 */
1787
1788 change_notify_reply(req,
1789 NT_STATUS_OK,
1790 max_param_count,
1791 fsp->notify,
1792 smbd_smb1_notify_reply);
1793
1794 /*
1795 * change_notify_reply() above has independently sent its
1796 * results
1797 */
1798 return;
1799 }
1800
1801 /*
1802 * No changes pending, queue the request
1803 */
1804
1805 status = change_notify_add_request(req,
1806 max_param_count,
1807 filter,
1808 recursive, fsp,
1809 smbd_smb1_notify_reply);
1810 if (!NT_STATUS_IS_OK(status)) {
1811 reply_nterror(req, status);
1812 }
1813 return;
1814 }
1815
1816 /****************************************************************************
1817 Reply to an NT transact rename command.
1818 ****************************************************************************/
1819
1820 static void call_nt_transact_rename(connection_struct *conn,
1821 struct smb_request *req,
1822 uint16 **ppsetup, uint32 setup_count,
1823 char **ppparams, uint32 parameter_count,
1824 char **ppdata, uint32 data_count,
1825 uint32 max_data_count)
1826 {
1827 char *params = *ppparams;
1828 char *new_name = NULL;
1829 files_struct *fsp = NULL;
1830 bool dest_has_wcard = False;
1831 NTSTATUS status;
1832 TALLOC_CTX *ctx = talloc_tos();
1833
1834 if(parameter_count < 5) {
1835 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1836 return;
1837 }
1838
1839 fsp = file_fsp(req, SVAL(params, 0));
1840 if (!check_fsp(conn, req, fsp)) {
1841 return;
1842 }
1843 srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1844 parameter_count - 4,
1845 STR_TERMINATE, &status, &dest_has_wcard);
1846 if (!NT_STATUS_IS_OK(status)) {
1847 reply_nterror(req, status);
1848 return;
1849 }
1850
1851 /*
1852 * W2K3 ignores this request as the RAW-RENAME test
1853 * demonstrates, so we do.
1854 */
1855 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1856
1857 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1858 fsp_str_dbg(fsp), new_name));
1859
1860 return;
1861 }
1862
1863 /******************************************************************************
1864 Fake up a completely empty SD.
1865 *******************************************************************************/
1866
1867 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, struct security_descriptor **ppsd)
1868 {
1869 size_t sd_size;
1870
1871 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1872 if(!*ppsd) {
1873 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1874 return NT_STATUS_NO_MEMORY;
1875 }
1876
1877 return NT_STATUS_OK;
1878 }
1879
1880 /****************************************************************************
1881 Reply to query a security descriptor.
1882 Callable from SMB2 and SMB2.
1883 If it returns NT_STATUS_BUFFER_TOO_SMALL, pdata_size is initialized with
1884 the required size.
1885 ****************************************************************************/
1886
1887 NTSTATUS smbd_do_query_security_desc(connection_struct *conn,
1888 TALLOC_CTX *mem_ctx,
1889 files_struct *fsp,
1890 uint32_t security_info_wanted,
1891 uint32_t max_data_count,
1892 uint8_t **ppmarshalled_sd,
1893 size_t *psd_size)
1894 {
1895 NTSTATUS status;
1896 struct security_descriptor *psd = NULL;
1897 TALLOC_CTX *frame = talloc_stackframe();
1898
1899 /*
1900 * Get the permissions to return.
1901 */
1902
1903 if ((security_info_wanted & SECINFO_SACL) &&
1904 !(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
1905 DEBUG(10, ("Access to SACL denied.\n"));
1906 TALLOC_FREE(frame);
1907 return NT_STATUS_ACCESS_DENIED;
1908 }
1909
1910 if ((security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|SECINFO_GROUP)) &&
1911 !(fsp->access_mask & SEC_STD_READ_CONTROL)) {
1912 DEBUG(10, ("Access to DACL, OWNER, or GROUP denied.\n"));
1913 TALLOC_FREE(frame);
1914 return NT_STATUS_ACCESS_DENIED;
1915 }
1916
1917 if (security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|
1918 SECINFO_GROUP|SECINFO_SACL)) {
1919 /* Don't return SECINFO_LABEL if anything else was
1920 requested. See bug #8458. */
1921 security_info_wanted &= ~SECINFO_LABEL;
1922 }
1923
1924 if (!lp_nt_acl_support(SNUM(conn))) {
1925 status = get_null_nt_acl(frame, &psd);
1926 } else if (security_info_wanted & SECINFO_LABEL) {
1927 /* Like W2K3 return a null object. */
1928 status = get_null_nt_acl(frame, &psd);
1929 } else {
1930 status = SMB_VFS_FGET_NT_ACL(
1931 fsp, security_info_wanted, frame, &psd);
1932 }
1933 if (!NT_STATUS_IS_OK(status)) {
1934 TALLOC_FREE(frame);
1935 return status;
1936 }
1937
1938 if (!(security_info_wanted & SECINFO_OWNER)) {
1939 psd->owner_sid = NULL;
1940 }
1941 if (!(security_info_wanted & SECINFO_GROUP)) {
1942 psd->group_sid = NULL;
1943 }
1944 if (!(security_info_wanted & SECINFO_DACL)) {
1945 psd->type &= ~SEC_DESC_DACL_PRESENT;
1946 psd->dacl = NULL;
1947 }
1948 if (!(security_info_wanted & SECINFO_SACL)) {
1949 psd->type &= ~SEC_DESC_SACL_PRESENT;
1950 psd->sacl = NULL;
1951 }
1952
1953 /* If the SACL/DACL is NULL, but was requested, we mark that it is
1954 * present in the reply to match Windows behavior */
1955 if (psd->sacl == NULL &&
1956 security_info_wanted & SECINFO_SACL)
1957 psd->type |= SEC_DESC_SACL_PRESENT;
1958 if (psd->dacl == NULL &&
1959 security_info_wanted & SECINFO_DACL)
1960 psd->type |= SEC_DESC_DACL_PRESENT;
1961
1962 if (security_info_wanted & SECINFO_LABEL) {
1963 /* Like W2K3 return a null object. */
1964 psd->owner_sid = NULL;
1965 psd->group_sid = NULL;
1966 psd->dacl = NULL;
1967 psd->sacl = NULL;
1968 psd->type &= ~(SEC_DESC_DACL_PRESENT|SEC_DESC_SACL_PRESENT);
1969 }
1970
1971 *psd_size = ndr_size_security_descriptor(psd, 0);
1972
1973 DEBUG(3,("smbd_do_query_security_desc: sd_size = %lu.\n",
1974 (unsigned long)*psd_size));
1975
1976 if (DEBUGLEVEL >= 10) {
1977 DEBUG(10,("smbd_do_query_security_desc for file %s\n",
1978 fsp_str_dbg(fsp)));
1979 NDR_PRINT_DEBUG(security_descriptor, psd);
1980 }
1981
1982 if (max_data_count < *psd_size) {
1983 TALLOC_FREE(frame);
1984 return NT_STATUS_BUFFER_TOO_SMALL;
1985 }
1986
1987 status = marshall_sec_desc(mem_ctx, psd,
1988 ppmarshalled_sd, psd_size);
1989
1990 if (!NT_STATUS_IS_OK(status)) {
1991 TALLOC_FREE(frame);
1992 return status;
1993 }
1994
1995 TALLOC_FREE(frame);
1996 return NT_STATUS_OK;
1997 }
1998
1999 /****************************************************************************
2000 SMB1 reply to query a security descriptor.
2001 ****************************************************************************/
2002
2003 static void call_nt_transact_query_security_desc(connection_struct *conn,
2004 struct smb_request *req,
2005 uint16 **ppsetup,
2006 uint32 setup_count,
2007 char **ppparams,
2008 uint32 parameter_count,
2009 char **ppdata,
2010 uint32 data_count,
2011 uint32 max_data_count)
2012 {
2013 char *params = *ppparams;
2014 char *data = *ppdata;
2015 size_t sd_size = 0;
2016 uint32 security_info_wanted;
2017 files_struct *fsp = NULL;
2018 NTSTATUS status;
2019 uint8_t *marshalled_sd = NULL;
2020
2021 if(parameter_count < 8) {
2022 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2023 return;
2024 }
2025
2026 fsp = file_fsp(req, SVAL(params,0));
2027 if(!fsp) {
2028 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2029 return;
2030 }
2031
2032 security_info_wanted = IVAL(params,4);
2033
2034 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
2035 "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
2036 (unsigned int)security_info_wanted));
2037
2038 params = nttrans_realloc(ppparams, 4);
2039 if(params == NULL) {
2040 reply_nterror(req, NT_STATUS_NO_MEMORY);
2041 return;
2042 }
2043
2044 /*
2045 * Get the permissions to return.
2046 */
2047
2048 status = smbd_do_query_security_desc(conn,
2049 talloc_tos(),
2050 fsp,
2051 security_info_wanted,
2052 max_data_count,
2053 &marshalled_sd,
2054 &sd_size);
2055
2056 if (NT_STATUS_EQUAL(status, NT_STATUS_BUFFER_TOO_SMALL)) {
2057 SIVAL(params,0,(uint32_t)sd_size);
2058 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2059 params, 4, NULL, 0);
2060 return;
2061 }
2062
2063 if (!NT_STATUS_IS_OK(status)) {
2064 reply_nterror(req, status);
2065 return;
2066 }
2067
2068 SMB_ASSERT(sd_size > 0);
2069
2070 SIVAL(params,0,(uint32_t)sd_size);
2071
2072 if (max_data_count < sd_size) {
2073 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2074 params, 4, NULL, 0);
2075 return;
2076 }
2077
2078 /*
2079 * Allocate the data we will return.
2080 */
2081
2082 data = nttrans_realloc(ppdata, sd_size);
2083 if(data == NULL) {
2084 reply_nterror(req, NT_STATUS_NO_MEMORY);
2085 return;
2086 }
2087
2088 memcpy(data, marshalled_sd, sd_size);
2089
2090 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
2091
2092 return;
2093 }
2094
2095 /****************************************************************************
2096 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
2097 ****************************************************************************/
2098
2099 static void call_nt_transact_set_security_desc(connection_struct *conn,
2100 struct smb_request *req,
2101 uint16 **ppsetup,
2102 uint32 setup_count,
2103 char **ppparams,
2104 uint32 parameter_count,
2105 char **ppdata,
2106 uint32 data_count,
2107 uint32 max_data_count)
2108 {
2109 char *params= *ppparams;
2110 char *data = *ppdata;
2111 files_struct *fsp = NULL;
2112 uint32 security_info_sent = 0;
2113 NTSTATUS status;
2114
2115 if(parameter_count < 8) {
2116 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2117 return;
2118 }
2119
2120 if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
2121 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2122 return;
2123 }
2124
2125 if (!CAN_WRITE(fsp->conn)) {
2126 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2127 return;
2128 }
2129
2130 if(!lp_nt_acl_support(SNUM(conn))) {
2131 goto done;
2132 }
2133
2134 security_info_sent = IVAL(params,4);
2135
2136 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
2137 fsp_str_dbg(fsp), (unsigned int)security_info_sent));
2138
2139 if (data_count == 0) {
2140 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2141 return;
2142 }
2143
2144 status = set_sd_blob(fsp, (uint8 *)data, data_count, security_info_sent);
2145
2146 if (!NT_STATUS_IS_OK(status)) {
2147 reply_nterror(req, status);
2148 return;
2149 }
2150
2151 done:
2152 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2153 return;
2154 }
2155
2156 /****************************************************************************
2157 Reply to NT IOCTL
2158 ****************************************************************************/
2159
2160 static void call_nt_transact_ioctl(connection_struct *conn,
2161 struct smb_request *req,
2162 uint16 **ppsetup, uint32 setup_count,
2163 char **ppparams, uint32 parameter_count,
2164 char **ppdata, uint32 data_count,
2165 uint32 max_data_count)
2166 {
2167 NTSTATUS status;
2168 uint32 function;
2169 uint16 fidnum;
2170 files_struct *fsp;
2171 uint8 isFSctl;
2172 uint8 compfilter;
2173 char *out_data = NULL;
2174 uint32 out_data_len = 0;
2175 char *pdata = *ppdata;
2176 TALLOC_CTX *ctx = talloc_tos();
2177
2178 if (setup_count != 8) {
2179 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
2180 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2181 return;
2182 }
2183
2184 function = IVAL(*ppsetup, 0);
2185 fidnum = SVAL(*ppsetup, 4);
2186 isFSctl = CVAL(*ppsetup, 6);
2187 compfilter = CVAL(*ppsetup, 7);
2188
2189 DEBUG(10, ("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
2190 function, fidnum, isFSctl, compfilter));
2191
2192 fsp=file_fsp(req, fidnum);
2193
2194 /*
2195 * We don't really implement IOCTLs, especially on files.
2196 */
2197 if (!isFSctl) {
2198 DEBUG(10, ("isFSctl: 0x%02X indicates IOCTL, not FSCTL!\n",
2199 isFSctl));
2200 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2201 return;
2202 }
2203
2204 /* Has to be for an open file! */
2205 if (!check_fsp_open(conn, req, fsp)) {
2206 return;
2207 }
2208
2209 SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
2210
2211 /*
2212 * out_data might be allocated by the VFS module, but talloc should be
2213 * used, and should be cleaned up when the request ends.
2214 */
2215 status = SMB_VFS_FSCTL(fsp,
2216 ctx,
2217 function,
2218 req->flags2,
2219 (uint8_t *)pdata,
2220 data_count,
2221 (uint8_t **)&out_data,
2222 max_data_count,
2223 &out_data_len);
2224 if (!NT_STATUS_IS_OK(status)) {
2225 reply_nterror(req, status);
2226 } else {
2227 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, out_data, out_data_len);
2228 }
2229 }
2230
2231
2232 #ifdef HAVE_SYS_QUOTAS
2233 /****************************************************************************
2234 Reply to get user quota
2235 ****************************************************************************/
2236
2237 static void call_nt_transact_get_user_quota(connection_struct *conn,
2238 struct smb_request *req,
2239 uint16 **ppsetup,
2240 uint32 setup_count,
2241 char **ppparams,
2242 uint32 parameter_count,
2243 char **ppdata,
2244 uint32 data_count,
2245 uint32 max_data_count)
2246 {
2247 NTSTATUS nt_status = NT_STATUS_OK;
2248 char *params = *ppparams;
2249 char *pdata = *ppdata;
2250 char *entry;
2251 int data_len=0,param_len=0;
2252 int qt_len=0;
2253 int entry_len = 0;
2254 files_struct *fsp = NULL;
2255 uint16 level = 0;
2256 size_t sid_len;
2257 struct dom_sid sid;
2258 bool start_enum = True;
2259 SMB_NTQUOTA_STRUCT qt;
2260 SMB_NTQUOTA_LIST *tmp_list;
2261 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2262
2263 ZERO_STRUCT(qt);
2264
2265 /* access check */
2266 if (get_current_uid(conn) != 0) {
2267 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2268 "[%s]\n", lp_servicename(talloc_tos(), SNUM(conn)),
2269 conn->session_info->unix_info->unix_name));
2270 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2271 return;
2272 }
2273
2274 /*
2275 * Ensure minimum number of parameters sent.
2276 */
2277
2278 if (parameter_count < 4) {
2279 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2280 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2281 return;
2282 }
2283
2284 /* maybe we can check the quota_fnum */
2285 fsp = file_fsp(req, SVAL(params,0));
2286 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2287 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2288 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2289 return;
2290 }
2291
2292 /* the NULL pointer checking for fsp->fake_file_handle->pd
2293 * is done by CHECK_NTQUOTA_HANDLE_OK()
2294 */
2295 qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2296
2297 level = SVAL(params,2);
2298
2299 /* unknown 12 bytes leading in params */
2300
2301 switch (level) {
2302 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2303 /* seems that we should continue with the enum here --metze */
2304
2305 if (qt_handle->quota_list!=NULL &&
2306 qt_handle->tmp_list==NULL) {
2307
2308 /* free the list */
2309 free_ntquota_list(&(qt_handle->quota_list));
2310
2311 /* Realloc the size of parameters and data we will return */
2312 param_len = 4;
2313 params = nttrans_realloc(ppparams, param_len);
2314 if(params == NULL) {
2315 reply_nterror(req, NT_STATUS_NO_MEMORY);
2316 return;
2317 }
2318
2319 data_len = 0;
2320 SIVAL(params,0,data_len);
2321
2322 break;
2323 }
2324
2325 start_enum = False;
2326
2327 case TRANSACT_GET_USER_QUOTA_LIST_START:
2328
2329 if (qt_handle->quota_list==NULL &&
2330 qt_handle->tmp_list==NULL) {
2331 start_enum = True;
2332 }
2333
2334 if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2335 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2336 return;
2337 }
2338
2339 /* Realloc the size of parameters and data we will return */
2340 param_len = 4;
2341 params = nttrans_realloc(ppparams, param_len);
2342 if(params == NULL) {
2343 reply_nterror(req, NT_STATUS_NO_MEMORY);
2344 return;
2345 }
2346
2347 /* we should not trust the value in max_data_count*/
2348 max_data_count = MIN(max_data_count,2048);
2349
2350 pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2351 if(pdata == NULL) {
2352 reply_nterror(req, NT_STATUS_NO_MEMORY);
2353 return;
2354 }
2355
2356 entry = pdata;
2357
2358 /* set params Size of returned Quota Data 4 bytes*/
2359 /* but set it later when we know it */
2360
2361 /* for each entry push the data */
2362
2363 if (start_enum) {
2364 qt_handle->tmp_list = qt_handle->quota_list;
2365 }
2366
2367 tmp_list = qt_handle->tmp_list;
2368
2369 for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2370 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2371
2372 sid_len = ndr_size_dom_sid(
2373 &tmp_list->quotas->sid, 0);
2374 entry_len = 40 + sid_len;
2375
2376 /* nextoffset entry 4 bytes */
2377 SIVAL(entry,0,entry_len);
2378
2379 /* then the len of the SID 4 bytes */
2380 SIVAL(entry,4,sid_len);
2381
2382 /* unknown data 8 bytes uint64_t */
2383 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2384
2385 /* the used disk space 8 bytes uint64_t */
2386 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2387
2388 /* the soft quotas 8 bytes uint64_t */
2389 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2390
2391 /* the hard quotas 8 bytes uint64_t */
2392 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2393
2394 /* and now the SID */
2395 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2396 }
2397
2398 qt_handle->tmp_list = tmp_list;
2399
2400 /* overwrite the offset of the last entry */
2401 SIVAL(entry-entry_len,0,0);
2402
2403 data_len = 4+qt_len;
2404 /* overwrite the params quota_data_len */
2405 SIVAL(params,0,data_len);
2406
2407 break;
2408
2409 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2410
2411 /* unknown 4 bytes IVAL(pdata,0) */
2412
2413 if (data_count < 8) {
2414 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2415 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2416 return;
2417 }
2418
2419 sid_len = IVAL(pdata,4);
2420 /* Ensure this is less than 1mb. */
2421 if (sid_len > (1024*1024)) {
2422 reply_nterror(req, NT_STATUS_NO_MEMORY);
2423 return;
2424 }
2425
2426 if (data_count < 8+sid_len) {
2427 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2428 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2429 return;
2430 }
2431
2432 data_len = 4+40+sid_len;
2433
2434 if (max_data_count < data_len) {
2435 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2436 max_data_count, data_len));
2437 param_len = 4;
2438 SIVAL(params,0,data_len);
2439 data_len = 0;
2440 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2441 break;
2442 }
2443
2444 if (!sid_parse(pdata+8,sid_len,&sid)) {
2445 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2446 return;
2447 }
2448
2449 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2450 ZERO_STRUCT(qt);
2451 /*
2452 * we have to return zero's in all fields
2453 * instead of returning an error here
2454 * --metze
2455 */
2456 }
2457
2458 /* Realloc the size of parameters and data we will return */
2459 param_len = 4;
2460 params = nttrans_realloc(ppparams, param_len);
2461 if(params == NULL) {
2462 reply_nterror(req, NT_STATUS_NO_MEMORY);
2463 return;
2464 }
2465
2466 pdata = nttrans_realloc(ppdata, data_len);
2467 if(pdata == NULL) {
2468 reply_nterror(req, NT_STATUS_NO_MEMORY);
2469 return;
2470 }
2471
2472 entry = pdata;
2473
2474 /* set params Size of returned Quota Data 4 bytes*/
2475 SIVAL(params,0,data_len);
2476
2477 /* nextoffset entry 4 bytes */
2478 SIVAL(entry,0,0);
2479
2480 /* then the len of the SID 4 bytes */
2481 SIVAL(entry,4,sid_len);
2482
2483 /* unknown data 8 bytes uint64_t */
2484 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2485
2486 /* the used disk space 8 bytes uint64_t */
2487 SBIG_UINT(entry,16,qt.usedspace);
2488
2489 /* the soft quotas 8 bytes uint64_t */
2490 SBIG_UINT(entry,24,qt.softlim);
2491
2492 /* the hard quotas 8 bytes uint64_t */
2493 SBIG_UINT(entry,32,qt.hardlim);
2494
2495 /* and now the SID */
2496 sid_linearize(entry+40, sid_len, &sid);
2497
2498 break;
2499
2500 default:
2501 DEBUG(0, ("do_nt_transact_get_user_quota: %s: unknown "
2502 "level 0x%04hX\n",
2503 fsp_fnum_dbg(fsp), level));
2504 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2505 return;
2506 break;
2507 }
2508
2509 send_nt_replies(conn, req, nt_status, params, param_len,
2510 pdata, data_len);
2511 }
2512
2513 /****************************************************************************
2514 Reply to set user quota
2515 ****************************************************************************/
2516
2517 static void call_nt_transact_set_user_quota(connection_struct *conn,
2518 struct smb_request *req,
2519 uint16 **ppsetup,
2520 uint32 setup_count,
2521 char **ppparams,
2522 uint32 parameter_count,
2523 char **ppdata,
2524 uint32 data_count,
2525 uint32 max_data_count)
2526 {
2527 char *params = *ppparams;
2528 char *pdata = *ppdata;
2529 int data_len=0,param_len=0;
2530 SMB_NTQUOTA_STRUCT qt;
2531 size_t sid_len;
2532 struct dom_sid sid;
2533 files_struct *fsp = NULL;
2534
2535 ZERO_STRUCT(qt);
2536
2537 /* access check */
2538 if (get_current_uid(conn) != 0) {
2539 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2540 "[%s]\n", lp_servicename(talloc_tos(), SNUM(conn)),
2541 conn->session_info->unix_info->unix_name));
2542 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2543 return;
2544 }
2545
2546 /*
2547 * Ensure minimum number of parameters sent.
2548 */
2549
2550 if (parameter_count < 2) {
2551 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2552 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2553 return;
2554 }
2555
2556 /* maybe we can check the quota_fnum */
2557 fsp = file_fsp(req, SVAL(params,0));
2558 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2559 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2560 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2561 return;
2562 }
2563
2564 if (data_count < 40) {
2565 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2566 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2567 return;
2568 }
2569
2570 /* offset to next quota record.
2571 * 4 bytes IVAL(pdata,0)
2572 * unused here...
2573 */
2574
2575 /* sid len */
2576 sid_len = IVAL(pdata,4);
2577
2578 if (data_count < 40+sid_len || (40+sid_len < sid_len)) {
2579 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2580 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2581 return;
2582 }
2583
2584 /* unknown 8 bytes in pdata
2585 * maybe its the change time in NTTIME
2586 */
2587
2588 /* the used space 8 bytes (uint64_t)*/
2589 qt.usedspace = BVAL(pdata,16);
2590
2591 /* the soft quotas 8 bytes (uint64_t)*/
2592 qt.softlim = BVAL(pdata,24);
2593
2594 /* the hard quotas 8 bytes (uint64_t)*/
2595 qt.hardlim = BVAL(pdata,32);
2596
2597 if (!sid_parse(pdata+40,sid_len,&sid)) {
2598 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2599 return;
2600 }
2601
2602 DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2603
2604 /* 44 unknown bytes left... */
2605
2606 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2607 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2608 return;
2609 }
2610
2611 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2612 pdata, data_len);
2613 }
2614 #endif /* HAVE_SYS_QUOTAS */
2615
2616 static void handle_nttrans(connection_struct *conn,
2617 struct trans_state *state,
2618 struct smb_request *req)
2619 {
2620 if (get_Protocol() >= PROTOCOL_NT1) {
2621 req->flags2 |= 0x40; /* IS_LONG_NAME */
2622 SSVAL(discard_const_p(uint8_t, req->inbuf),smb_flg2,req->flags2);
2623 }
2624
2625
2626 SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2627
2628 /* Now we must call the relevant NT_TRANS function */
2629 switch(state->call) {
2630 case NT_TRANSACT_CREATE:
2631 {
2632 START_PROFILE(NT_transact_create);
2633 call_nt_transact_create(
2634 conn, req,
2635 &state->setup, state->setup_count,
2636 &state->param, state->total_param,
2637 &state->data, state->total_data,
2638 state->max_data_return);
2639 END_PROFILE(NT_transact_create);
2640 break;
2641 }
2642
2643 case NT_TRANSACT_IOCTL:
2644 {
2645 START_PROFILE(NT_transact_ioctl);
2646 call_nt_transact_ioctl(
2647 conn, req,
2648 &state->setup, state->setup_count,
2649 &state->param, state->total_param,
2650 &state->data, state->total_data,
2651 state->max_data_return);
2652 END_PROFILE(NT_transact_ioctl);
2653 break;
2654 }
2655
2656 case NT_TRANSACT_SET_SECURITY_DESC:
2657 {
2658 START_PROFILE(NT_transact_set_security_desc);
2659 call_nt_transact_set_security_desc(
2660 conn, req,
2661 &state->setup, state->setup_count,
2662 &state->param, state->total_param,
2663 &state->data, state->total_data,
2664 state->max_data_return);
2665 END_PROFILE(NT_transact_set_security_desc);
2666 break;
2667 }
2668
2669 case NT_TRANSACT_NOTIFY_CHANGE:
2670 {
2671 START_PROFILE(NT_transact_notify_change);
2672 call_nt_transact_notify_change(
2673 conn, req,
2674 &state->setup, state->setup_count,
2675 &state->param, state->total_param,
2676 &state->data, state->total_data,
2677 state->max_data_return,
2678 state->max_param_return);
2679 END_PROFILE(NT_transact_notify_change);
2680 break;
2681 }
2682
2683 case NT_TRANSACT_RENAME:
2684 {
2685 START_PROFILE(NT_transact_rename);
2686 call_nt_transact_rename(
2687 conn, req,
2688 &state->setup, state->setup_count,
2689 &state->param, state->total_param,
2690 &state->data, state->total_data,
2691 state->max_data_return);
2692 END_PROFILE(NT_transact_rename);
2693 break;
2694 }
2695
2696 case NT_TRANSACT_QUERY_SECURITY_DESC:
2697 {
2698 START_PROFILE(NT_transact_query_security_desc);
2699 call_nt_transact_query_security_desc(
2700 conn, req,
2701 &state->setup, state->setup_count,
2702 &state->param, state->total_param,
2703 &state->data, state->total_data,
2704 state->max_data_return);
2705 END_PROFILE(NT_transact_query_security_desc);
2706 break;
2707 }
2708
2709 #ifdef HAVE_SYS_QUOTAS
2710 case NT_TRANSACT_GET_USER_QUOTA:
2711 {
2712 START_PROFILE(NT_transact_get_user_quota);
2713 call_nt_transact_get_user_quota(
2714 conn, req,
2715 &state->setup, state->setup_count,
2716 &state->param, state->total_param,
2717 &state->data, state->total_data,
2718 state->max_data_return);
2719 END_PROFILE(NT_transact_get_user_quota);
2720 break;
2721 }
2722
2723 case NT_TRANSACT_SET_USER_QUOTA:
2724 {
2725 START_PROFILE(NT_transact_set_user_quota);
2726 call_nt_transact_set_user_quota(
2727 conn, req,
2728 &state->setup, state->setup_count,
2729 &state->param, state->total_param,
2730 &state->data, state->total_data,
2731 state->max_data_return);
2732 END_PROFILE(NT_transact_set_user_quota);
2733 break;
2734 }
2735 #endif /* HAVE_SYS_QUOTAS */
2736
2737 default:
2738 /* Error in request */
2739 DEBUG(0,("handle_nttrans: Unknown request %d in "
2740 "nttrans call\n", state->call));
2741 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2742 return;
2743 }
2744 return;
2745 }
2746
2747 /****************************************************************************
2748 Reply to a SMBNTtrans.
2749 ****************************************************************************/
2750
2751 void reply_nttrans(struct smb_request *req)
2752 {
2753 connection_struct *conn = req->conn;
2754 uint32_t pscnt;
2755 uint32_t psoff;
2756 uint32_t dscnt;
2757 uint32_t dsoff;
2758 uint16 function_code;
2759 NTSTATUS result;
2760 struct trans_state *state;
2761
2762 START_PROFILE(SMBnttrans);
2763
2764 if (req->wct < 19) {
2765 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2766 END_PROFILE(SMBnttrans);
2767 return;
2768 }
2769
2770 pscnt = IVAL(req->vwv+9, 1);
2771 psoff = IVAL(req->vwv+11, 1);
2772 dscnt = IVAL(req->vwv+13, 1);
2773 dsoff = IVAL(req->vwv+15, 1);
2774 function_code = SVAL(req->vwv+18, 0);
2775
2776 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2777 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2778 END_PROFILE(SMBnttrans);
2779 return;
2780 }
2781
2782 result = allow_new_trans(conn->pending_trans, req->mid);
2783 if (!NT_STATUS_IS_OK(result)) {
2784 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2785 reply_nterror(req, result);
2786 END_PROFILE(SMBnttrans);
2787 return;
2788 }
2789
2790 if ((state = talloc(conn, struct trans_state)) == NULL) {
2791 reply_nterror(req, NT_STATUS_NO_MEMORY);
2792 END_PROFILE(SMBnttrans);
2793 return;
2794 }
2795
2796 state->cmd = SMBnttrans;
2797
2798 state->mid = req->mid;
2799 state->vuid = req->vuid;
2800 state->total_data = IVAL(req->vwv+3, 1);
2801 state->data = NULL;
2802 state->total_param = IVAL(req->vwv+1, 1);
2803 state->param = NULL;
2804 state->max_data_return = IVAL(req->vwv+7, 1);
2805 state->max_param_return = IVAL(req->vwv+5, 1);
2806
2807 /* setup count is in *words* */
2808 state->setup_count = 2*CVAL(req->vwv+17, 1);
2809 state->setup = NULL;
2810 state->call = function_code;
2811
2812 DEBUG(10, ("num_setup=%u, "
2813 "param_total=%u, this_param=%u, max_param=%u, "
2814 "data_total=%u, this_data=%u, max_data=%u, "
2815 "param_offset=%u, data_offset=%u\n",
2816 (unsigned)state->setup_count,
2817 (unsigned)state->total_param, (unsigned)pscnt,
2818 (unsigned)state->max_param_return,
2819 (unsigned)state->total_data, (unsigned)dscnt,
2820 (unsigned)state->max_data_return,
2821 (unsigned)psoff, (unsigned)dsoff));
2822
2823 /*
2824 * All nttrans messages we handle have smb_wct == 19 +
2825 * state->setup_count. Ensure this is so as a sanity check.
2826 */
2827
2828 if(req->wct != 19 + (state->setup_count/2)) {
2829 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2830 req->wct, 19 + (state->setup_count/2)));
2831 goto bad_param;
2832 }
2833
2834 /* Don't allow more than 128mb for each value. */
2835 if ((state->total_data > (1024*1024*128)) ||
2836 (state->total_param > (1024*1024*128))) {
2837 reply_nterror(req, NT_STATUS_NO_MEMORY);
2838 END_PROFILE(SMBnttrans);
2839 return;
2840 }
2841
2842 if ((dscnt > state->total_data) || (pscnt > state->total_param))
2843 goto bad_param;
2844
2845 if (state->total_data) {
2846
2847 if (trans_oob(state->total_data, 0, dscnt)
2848 || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
2849 goto bad_param;
2850 }
2851
2852 /* Can't use talloc here, the core routines do realloc on the
2853 * params and data. */
2854 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2855 DEBUG(0,("reply_nttrans: data malloc fail for %u "
2856 "bytes !\n", (unsigned int)state->total_data));
2857 TALLOC_FREE(state);
2858 reply_nterror(req, NT_STATUS_NO_MEMORY);
2859 END_PROFILE(SMBnttrans);
2860 return;
2861 }
2862
2863 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2864 }
2865
2866 if (state->total_param) {
2867
2868 if (trans_oob(state->total_param, 0, pscnt)
2869 || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
2870 goto bad_param;
2871 }
2872
2873 /* Can't use talloc here, the core routines do realloc on the
2874 * params and data. */
2875 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2876 DEBUG(0,("reply_nttrans: param malloc fail for %u "
2877 "bytes !\n", (unsigned int)state->total_param));
2878 SAFE_FREE(state->data);
2879 TALLOC_FREE(state);
2880 reply_nterror(req, NT_STATUS_NO_MEMORY);
2881 END_PROFILE(SMBnttrans);
2882 return;
2883 }
2884
2885 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2886 }
2887
2888 state->received_data = dscnt;
2889 state->received_param = pscnt;
2890
2891 if(state->setup_count > 0) {
2892 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2893 state->setup_count));
2894
2895 /*
2896 * No overflow possible here, state->setup_count is an
2897 * unsigned int, being filled by a single byte from
2898 * CVAL(req->vwv+13, 0) above. The cast in the comparison
2899 * below is not necessary, it's here to clarify things. The
2900 * validity of req->vwv and req->wct has been checked in
2901 * init_smb_request already.
2902 */
2903 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
2904 goto bad_param;
2905 }
2906
2907 state->setup = (uint16 *)TALLOC(state, state->setup_count);
2908 if (state->setup == NULL) {
2909 DEBUG(0,("reply_nttrans : Out of memory\n"));
2910 SAFE_FREE(state->data);
2911 SAFE_FREE(state->param);
2912 TALLOC_FREE(state);
2913 reply_nterror(req, NT_STATUS_NO_MEMORY);
2914 END_PROFILE(SMBnttrans);
2915 return;
2916 }
2917
2918 memcpy(state->setup, req->vwv+19, state->setup_count);
2919 dump_data(10, (uint8 *)state->setup, state->setup_count);
2920 }
2921
2922 if ((state->received_data == state->total_data) &&
2923 (state->received_param == state->total_param)) {
2924 handle_nttrans(conn, state, req);
2925 SAFE_FREE(state->param);
2926 SAFE_FREE(state->data);
2927 TALLOC_FREE(state);
2928 END_PROFILE(SMBnttrans);
2929 return;
2930 }
2931
2932 DLIST_ADD(conn->pending_trans, state);
2933
2934 /* We need to send an interim response then receive the rest
2935 of the parameter/data bytes */
2936 reply_outbuf(req, 0, 0);
2937 show_msg((char *)req->outbuf);
2938 END_PROFILE(SMBnttrans);
2939 return;
2940
2941 bad_param:
2942
2943 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2944 SAFE_FREE(state->data);
2945 SAFE_FREE(state->param);
2946 TALLOC_FREE(state);
2947 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2948 END_PROFILE(SMBnttrans);
2949 return;
2950 }
2951
2952 /****************************************************************************
2953 Reply to a SMBnttranss
2954 ****************************************************************************/
2955
2956 void reply_nttranss(struct smb_request *req)
2957 {
2958 connection_struct *conn = req->conn;
2959 uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
2960 struct trans_state *state;
2961
2962 START_PROFILE(SMBnttranss);
2963
2964 show_msg((const char *)req->inbuf);
2965
2966 /* Windows clients expect all replies to
2967 an NT transact secondary (SMBnttranss 0xA1)
2968 to have a command code of NT transact
2969 (SMBnttrans 0xA0). See bug #8989 for details. */
2970 req->cmd = SMBnttrans;
2971
2972 if (req->wct < 18) {
2973 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2974 END_PROFILE(SMBnttranss);
2975 return;
2976 }
2977
2978 for (state = conn->pending_trans; state != NULL;
2979 state = state->next) {
2980 if (state->mid == req->mid) {
2981 break;
2982 }
2983 }
2984
2985 if ((state == NULL) || (state->cmd != SMBnttrans)) {
2986 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2987 END_PROFILE(SMBnttranss);
2988 return;
2989 }
2990
2991 /* Revise state->total_param and state->total_data in case they have
2992 changed downwards */
2993 if (IVAL(req->vwv+1, 1) < state->total_param) {
2994 state->total_param = IVAL(req->vwv+1, 1);
2995 }
2996 if (IVAL(req->vwv+3, 1) < state->total_data) {
2997 state->total_data = IVAL(req->vwv+3, 1);
2998 }
2999
3000 pcnt = IVAL(req->vwv+5, 1);
3001 poff = IVAL(req->vwv+7, 1);
3002 pdisp = IVAL(req->vwv+9, 1);
3003
3004 dcnt = IVAL(req->vwv+11, 1);
3005 doff = IVAL(req->vwv+13, 1);
3006 ddisp = IVAL(req->vwv+15, 1);
3007
3008 state->received_param += pcnt;
3009 state->received_data += dcnt;
3010
3011 if ((state->received_data > state->total_data) ||
3012 (state->received_param > state->total_param))
3013 goto bad_param;
3014
3015 if (pcnt) {
3016 if (trans_oob(state->total_param, pdisp, pcnt)
3017 || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
3018 goto bad_param;
3019 }
3020 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
3021 }
3022
3023 if (dcnt) {
3024 if (trans_oob(state->total_data, ddisp, dcnt)
3025 || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
3026 goto bad_param;
3027 }
3028 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
3029 }
3030
3031 if ((state->received_param < state->total_param) ||
3032 (state->received_data < state->total_data)) {
3033 END_PROFILE(SMBnttranss);
3034 return;
3035 }
3036
3037 handle_nttrans(conn, state, req);
3038
3039 DLIST_REMOVE(conn->pending_trans, state);
3040 SAFE_FREE(state->data);
3041 SAFE_FREE(state->param);
3042 TALLOC_FREE(state);
3043 END_PROFILE(SMBnttranss);
3044 return;
3045
3046 bad_param:
3047
3048 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
3049 DLIST_REMOVE(conn->pending_trans, state);
3050 SAFE_FREE(state->data);
3051 SAFE_FREE(state->param);
3052 TALLOC_FREE(state);
3053 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3054 END_PROFILE(SMBnttranss);
3055 return;
3056 }
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