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s4:lib/socket: simplify iface_list_wildcard() and its callers
[Samba.git] / source3 / smbd / nttrans.c
blobbca4cd8ab54df7baa4f078adfe93e59b47e32afc
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 NTSTATUS status;
461 int oplock_request;
462 uint8_t oplock_granted = NO_OPLOCK_RETURN;
463 struct case_semantics_state *case_state = NULL;
464 TALLOC_CTX *ctx = talloc_tos();
465
466 START_PROFILE(SMBntcreateX);
467
468 if (req->wct < 24) {
469 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
470 goto out;
471 }
472
473 flags = IVAL(req->vwv+3, 1);
474 access_mask = IVAL(req->vwv+7, 1);
475 file_attributes = IVAL(req->vwv+13, 1);
476 share_access = IVAL(req->vwv+15, 1);
477 create_disposition = IVAL(req->vwv+17, 1);
478 create_options = IVAL(req->vwv+19, 1);
479 root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
480
481 allocation_size = BVAL(req->vwv+9, 1);
482
483 srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
484 STR_TERMINATE, &status);
485
486 if (!NT_STATUS_IS_OK(status)) {
487 reply_nterror(req, status);
488 goto out;
489 }
490
491 DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
492 "file_attributes = 0x%x, share_access = 0x%x, "
493 "create_disposition = 0x%x create_options = 0x%x "
494 "root_dir_fid = 0x%x, fname = %s\n",
495 (unsigned int)flags,
496 (unsigned int)access_mask,
497 (unsigned int)file_attributes,
498 (unsigned int)share_access,
499 (unsigned int)create_disposition,
500 (unsigned int)create_options,
501 (unsigned int)root_dir_fid,
502 fname));
503
504 /*
505 * we need to remove ignored bits when they come directly from the client
506 * because we reuse some of them for internal stuff
507 */
508 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
509
510 /*
511 * If it's an IPC, use the pipe handler.
512 */
513
514 if (IS_IPC(conn)) {
515 if (lp_nt_pipe_support()) {
516 do_ntcreate_pipe_open(conn, req);
517 goto out;
518 }
519 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
520 goto out;
521 }
522
523 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
524 if (oplock_request) {
525 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
526 ? BATCH_OPLOCK : 0;
527 }
528
529 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
530 case_state = set_posix_case_semantics(ctx, conn);
531 if (!case_state) {
532 reply_nterror(req, NT_STATUS_NO_MEMORY);
533 goto out;
534 }
535 }
536
537 status = filename_convert(ctx,
538 conn,
539 req->flags2 & FLAGS2_DFS_PATHNAMES,
540 fname,
541 UCF_PREP_CREATEFILE,
542 NULL,
543 &smb_fname);
544
545 TALLOC_FREE(case_state);
546
547 if (!NT_STATUS_IS_OK(status)) {
548 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
549 reply_botherror(req,
550 NT_STATUS_PATH_NOT_COVERED,
551 ERRSRV, ERRbadpath);
552 goto out;
553 }
554 reply_nterror(req, status);
555 goto out;
556 }
557
558 /*
559 * Bug #6898 - clients using Windows opens should
560 * never be able to set this attribute into the
561 * VFS.
562 */
563 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
564
565 status = SMB_VFS_CREATE_FILE(
566 conn, /* conn */
567 req, /* req */
568 root_dir_fid, /* root_dir_fid */
569 smb_fname, /* fname */
570 access_mask, /* access_mask */
571 share_access, /* share_access */
572 create_disposition, /* create_disposition*/
573 create_options, /* create_options */
574 file_attributes, /* file_attributes */
575 oplock_request, /* oplock_request */
576 allocation_size, /* allocation_size */
577 0, /* private_flags */
578 NULL, /* sd */
579 NULL, /* ea_list */
580 &fsp, /* result */
581 &info); /* pinfo */
582
583 if (!NT_STATUS_IS_OK(status)) {
584 if (open_was_deferred(req->sconn, req->mid)) {
585 /* We have re-scheduled this call, no error. */
586 goto out;
587 }
588 reply_openerror(req, status);
589 goto out;
590 }
591
592 /* Ensure we're pointing at the correct stat struct. */
593 TALLOC_FREE(smb_fname);
594 smb_fname = fsp->fsp_name;
595
596 /*
597 * If the caller set the extended oplock request bit
598 * and we granted one (by whatever means) - set the
599 * correct bit for extended oplock reply.
600 */
601
602 if (oplock_request &&
603 (lp_fake_oplocks(SNUM(conn))
604 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
605
606 /*
607 * Exclusive oplock granted
608 */
609
610 if (flags & REQUEST_BATCH_OPLOCK) {
611 oplock_granted = BATCH_OPLOCK_RETURN;
612 } else {
613 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
614 }
615 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
616 oplock_granted = LEVEL_II_OPLOCK_RETURN;
617 } else {
618 oplock_granted = NO_OPLOCK_RETURN;
619 }
620
621 file_len = smb_fname->st.st_ex_size;
622
623 if (flags & EXTENDED_RESPONSE_REQUIRED) {
624 /* This is very strange. We
625 * return 50 words, but only set
626 * the wcnt to 42 ? It's definitely
627 * what happens on the wire....
628 */
629 reply_outbuf(req, 50, 0);
630 SCVAL(req->outbuf,smb_wct,42);
631 } else {
632 reply_outbuf(req, 34, 0);
633 }
634
635 SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
636 SSVAL(req->outbuf, smb_vwv1, 0); /* no andx offset */
637
638 p = (char *)req->outbuf + smb_vwv2;
639
640 SCVAL(p, 0, oplock_granted);
641
642 p++;
643 SSVAL(p,0,fsp->fnum);
644 p += 2;
645 if ((create_disposition == FILE_SUPERSEDE)
646 && (info == FILE_WAS_OVERWRITTEN)) {
647 SIVAL(p,0,FILE_WAS_SUPERSEDED);
648 } else {
649 SIVAL(p,0,info);
650 }
651 p += 4;
652
653 fattr = dos_mode(conn, smb_fname);
654 if (fattr == 0) {
655 fattr = FILE_ATTRIBUTE_NORMAL;
656 }
657
658 /* Create time. */
659 create_timespec = get_create_timespec(conn, fsp, smb_fname);
660 a_timespec = smb_fname->st.st_ex_atime;
661 m_timespec = smb_fname->st.st_ex_mtime;
662 c_timespec = get_change_timespec(conn, fsp, smb_fname);
663
664 if (lp_dos_filetime_resolution(SNUM(conn))) {
665 dos_filetime_timespec(&create_timespec);
666 dos_filetime_timespec(&a_timespec);
667 dos_filetime_timespec(&m_timespec);
668 dos_filetime_timespec(&c_timespec);
669 }
670
671 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
672 p += 8;
673 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
674 p += 8;
675 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
676 p += 8;
677 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
678 p += 8;
679 SIVAL(p,0,fattr); /* File Attributes. */
680 p += 4;
681 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
682 p += 8;
683 SOFF_T(p,0,file_len);
684 p += 8;
685 if (flags & EXTENDED_RESPONSE_REQUIRED) {
686 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
687 size_t num_names = 0;
688 unsigned int num_streams = 0;
689 struct stream_struct *streams = NULL;
690
691 /* Do we have any EA's ? */
692 status = get_ea_names_from_file(ctx, conn, fsp,
693 smb_fname->base_name, NULL, &num_names);
694 if (NT_STATUS_IS_OK(status) && num_names) {
695 file_status &= ~NO_EAS;
696 }
697 status = vfs_streaminfo(conn, NULL, smb_fname->base_name, ctx,
698 &num_streams, &streams);
699 /* There is always one stream, ::$DATA. */
700 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
701 file_status &= ~NO_SUBSTREAMS;
702 }
703 TALLOC_FREE(streams);
704 SSVAL(p,2,file_status);
705 }
706 p += 4;
707 SCVAL(p,0,fsp->is_directory ? 1 : 0);
708
709 if (flags & EXTENDED_RESPONSE_REQUIRED) {
710 uint32 perms = 0;
711 p += 25;
712 if (fsp->is_directory ||
713 fsp->can_write ||
714 can_write_to_file(conn, smb_fname)) {
715 perms = FILE_GENERIC_ALL;
716 } else {
717 perms = FILE_GENERIC_READ|FILE_EXECUTE;
718 }
719 SIVAL(p,0,perms);
720 }
721
722 DEBUG(5,("reply_ntcreate_and_X: %s, open name = %s\n",
723 fsp_fnum_dbg(fsp), smb_fname_str_dbg(smb_fname)));
724
725 out:
726 END_PROFILE(SMBntcreateX);
727 return;
728 }
729
730 /****************************************************************************
731 Reply to a NT_TRANSACT_CREATE call to open a pipe.
732 ****************************************************************************/
733
734 static void do_nt_transact_create_pipe(connection_struct *conn,
735 struct smb_request *req,
736 uint16 **ppsetup, uint32 setup_count,
737 char **ppparams, uint32 parameter_count,
738 char **ppdata, uint32 data_count)
739 {
740 char *fname = NULL;
741 char *params = *ppparams;
742 uint16_t pnum = FNUM_FIELD_INVALID;
743 char *p = NULL;
744 NTSTATUS status;
745 size_t param_len;
746 uint32 flags;
747 TALLOC_CTX *ctx = talloc_tos();
748
749 /*
750 * Ensure minimum number of parameters sent.
751 */
752
753 if(parameter_count < 54) {
754 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
755 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
756 return;
757 }
758
759 flags = IVAL(params,0);
760
761 srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
762 parameter_count-53, STR_TERMINATE,
763 &status);
764 if (!NT_STATUS_IS_OK(status)) {
765 reply_nterror(req, status);
766 return;
767 }
768
769 nt_open_pipe(fname, conn, req, &pnum);
770
771 if (req->outbuf) {
772 /* Error return */
773 return;
774 }
775
776 /* Realloc the size of parameters and data we will return */
777 if (flags & EXTENDED_RESPONSE_REQUIRED) {
778 /* Extended response is 32 more byyes. */
779 param_len = 101;
780 } else {
781 param_len = 69;
782 }
783 params = nttrans_realloc(ppparams, param_len);
784 if(params == NULL) {
785 reply_nterror(req, NT_STATUS_NO_MEMORY);
786 return;
787 }
788
789 p = params;
790 SCVAL(p,0,NO_OPLOCK_RETURN);
791
792 p += 2;
793 SSVAL(p,0,pnum);
794 p += 2;
795 SIVAL(p,0,FILE_WAS_OPENED);
796 p += 8;
797
798 p += 32;
799 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
800 p += 20;
801 /* File type. */
802 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
803 /* Device state. */
804 SSVAL(p,2, 0x5FF); /* ? */
805 p += 4;
806
807 if (flags & EXTENDED_RESPONSE_REQUIRED) {
808 p += 25;
809 SIVAL(p,0,FILE_GENERIC_ALL);
810 /*
811 * For pipes W2K3 seems to return
812 * 0x12019B next.
813 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
814 */
815 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
816 }
817
818 DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
819
820 /* Send the required number of replies */
821 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
822
823 return;
824 }
825
826 /*********************************************************************
827 Windows seems to do canonicalization of inheritance bits. Do the
828 same.
829 *********************************************************************/
830
831 static void canonicalize_inheritance_bits(struct security_descriptor *psd)
832 {
833 bool set_auto_inherited = false;
834
835 /*
836 * We need to filter out the
837 * SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ
838 * bits. If both are set we store SEC_DESC_DACL_AUTO_INHERITED
839 * as this alters whether SEC_ACE_FLAG_INHERITED_ACE is set
840 * when an ACE is inherited. Otherwise we zero these bits out.
841 * See:
842 *
843 * http://social.msdn.microsoft.com/Forums/eu/os_fileservices/thread/11f77b68-731e-407d-b1b3-064750716531
844 *
845 * for details.
846 */
847
848 if ((psd->type & (SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ))
849 == (SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ)) {
850 set_auto_inherited = true;
851 }
852
853 psd->type &= ~(SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ);
854 if (set_auto_inherited) {
855 psd->type |= SEC_DESC_DACL_AUTO_INHERITED;
856 }
857 }
858
859 /****************************************************************************
860 Internal fn to set security descriptors.
861 ****************************************************************************/
862
863 NTSTATUS set_sd(files_struct *fsp, struct security_descriptor *psd,
864 uint32_t security_info_sent)
865 {
866 NTSTATUS status;
867
868 if (!CAN_WRITE(fsp->conn)) {
869 return NT_STATUS_ACCESS_DENIED;
870 }
871
872 if (!lp_nt_acl_support(SNUM(fsp->conn))) {
873 return NT_STATUS_OK;
874 }
875
876 if (psd->owner_sid == NULL) {
877 security_info_sent &= ~SECINFO_OWNER;
878 }
879 if (psd->group_sid == NULL) {
880 security_info_sent &= ~SECINFO_GROUP;
881 }
882
883 /* Ensure we have at least one thing set. */
884 if ((security_info_sent & (SECINFO_OWNER|SECINFO_GROUP|SECINFO_DACL|SECINFO_SACL)) == 0) {
885 /* Just like W2K3 */
886 return NT_STATUS_OK;
887 }
888
889 /* Ensure we have the rights to do this. */
890 if (security_info_sent & SECINFO_OWNER) {
891 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
892 return NT_STATUS_ACCESS_DENIED;
893 }
894 }
895
896 if (security_info_sent & SECINFO_GROUP) {
897 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
898 return NT_STATUS_ACCESS_DENIED;
899 }
900 }
901
902 if (security_info_sent & SECINFO_DACL) {
903 if (!(fsp->access_mask & SEC_STD_WRITE_DAC)) {
904 return NT_STATUS_ACCESS_DENIED;
905 }
906 /* Convert all the generic bits. */
907 if (psd->dacl) {
908 security_acl_map_generic(psd->dacl, &file_generic_mapping);
909 }
910 }
911
912 if (security_info_sent & SECINFO_SACL) {
913 if (!(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
914 return NT_STATUS_ACCESS_DENIED;
915 }
916 /* Convert all the generic bits. */
917 if (psd->sacl) {
918 security_acl_map_generic(psd->sacl, &file_generic_mapping);
919 }
920 }
921
922 canonicalize_inheritance_bits(psd);
923
924 if (DEBUGLEVEL >= 10) {
925 DEBUG(10,("set_sd for file %s\n", fsp_str_dbg(fsp)));
926 NDR_PRINT_DEBUG(security_descriptor, psd);
927 }
928
929 status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
930
931 TALLOC_FREE(psd);
932
933 return status;
934 }
935
936 /****************************************************************************
937 Internal fn to set security descriptors from a data blob.
938 ****************************************************************************/
939
940 NTSTATUS set_sd_blob(files_struct *fsp, uint8_t *data, uint32_t sd_len,
941 uint32_t security_info_sent)
942 {
943 struct security_descriptor *psd = NULL;
944 NTSTATUS status;
945
946 if (sd_len == 0) {
947 return NT_STATUS_INVALID_PARAMETER;
948 }
949
950 status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
951
952 if (!NT_STATUS_IS_OK(status)) {
953 return status;
954 }
955
956 return set_sd(fsp, psd, security_info_sent);
957 }
958
959 /****************************************************************************
960 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
961 ****************************************************************************/
962
963 static void call_nt_transact_create(connection_struct *conn,
964 struct smb_request *req,
965 uint16 **ppsetup, uint32 setup_count,
966 char **ppparams, uint32 parameter_count,
967 char **ppdata, uint32 data_count,
968 uint32 max_data_count)
969 {
970 struct smb_filename *smb_fname = NULL;
971 char *fname = NULL;
972 char *params = *ppparams;
973 char *data = *ppdata;
974 /* Breakout the oplock request bits so we can set the reply bits separately. */
975 uint32 fattr=0;
976 off_t file_len = 0;
977 int info = 0;
978 files_struct *fsp = NULL;
979 char *p = NULL;
980 uint32 flags;
981 uint32 access_mask;
982 uint32 file_attributes;
983 uint32 share_access;
984 uint32 create_disposition;
985 uint32 create_options;
986 uint32 sd_len;
987 struct security_descriptor *sd = NULL;
988 uint32 ea_len;
989 uint16 root_dir_fid;
990 struct timespec create_timespec;
991 struct timespec c_timespec;
992 struct timespec a_timespec;
993 struct timespec m_timespec;
994 struct ea_list *ea_list = NULL;
995 NTSTATUS status;
996 size_t param_len;
997 uint64_t allocation_size;
998 int oplock_request;
999 uint8_t oplock_granted;
1000 struct case_semantics_state *case_state = NULL;
1001 TALLOC_CTX *ctx = talloc_tos();
1002
1003 DEBUG(5,("call_nt_transact_create\n"));
1004
1005 /*
1006 * If it's an IPC, use the pipe handler.
1007 */
1008
1009 if (IS_IPC(conn)) {
1010 if (lp_nt_pipe_support()) {
1011 do_nt_transact_create_pipe(
1012 conn, req,
1013 ppsetup, setup_count,
1014 ppparams, parameter_count,
1015 ppdata, data_count);
1016 goto out;
1017 }
1018 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1019 goto out;
1020 }
1021
1022 /*
1023 * Ensure minimum number of parameters sent.
1024 */
1025
1026 if(parameter_count < 54) {
1027 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1028 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1029 goto out;
1030 }
1031
1032 flags = IVAL(params,0);
1033 access_mask = IVAL(params,8);
1034 file_attributes = IVAL(params,20);
1035 share_access = IVAL(params,24);
1036 create_disposition = IVAL(params,28);
1037 create_options = IVAL(params,32);
1038 sd_len = IVAL(params,36);
1039 ea_len = IVAL(params,40);
1040 root_dir_fid = (uint16)IVAL(params,4);
1041 allocation_size = BVAL(params,12);
1042
1043 /*
1044 * we need to remove ignored bits when they come directly from the client
1045 * because we reuse some of them for internal stuff
1046 */
1047 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
1048
1049 srvstr_get_path(ctx, params, req->flags2, &fname,
1050 params+53, parameter_count-53,
1051 STR_TERMINATE, &status);
1052 if (!NT_STATUS_IS_OK(status)) {
1053 reply_nterror(req, status);
1054 goto out;
1055 }
1056
1057 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
1058 case_state = set_posix_case_semantics(ctx, conn);
1059 if (!case_state) {
1060 reply_nterror(req, NT_STATUS_NO_MEMORY);
1061 goto out;
1062 }
1063 }
1064
1065 status = filename_convert(ctx,
1066 conn,
1067 req->flags2 & FLAGS2_DFS_PATHNAMES,
1068 fname,
1069 UCF_PREP_CREATEFILE,
1070 NULL,
1071 &smb_fname);
1072
1073 TALLOC_FREE(case_state);
1074
1075 if (!NT_STATUS_IS_OK(status)) {
1076 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1077 reply_botherror(req,
1078 NT_STATUS_PATH_NOT_COVERED,
1079 ERRSRV, ERRbadpath);
1080 goto out;
1081 }
1082 reply_nterror(req, status);
1083 goto out;
1084 }
1085
1086 /* Ensure the data_len is correct for the sd and ea values given. */
1087 if ((ea_len + sd_len > data_count)
1088 || (ea_len > data_count) || (sd_len > data_count)
1089 || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
1090 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
1091 "%u, data_count = %u\n", (unsigned int)ea_len,
1092 (unsigned int)sd_len, (unsigned int)data_count));
1093 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1094 goto out;
1095 }
1096
1097 if (sd_len) {
1098 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
1099 sd_len));
1100
1101 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
1102 &sd);
1103 if (!NT_STATUS_IS_OK(status)) {
1104 DEBUG(10, ("call_nt_transact_create: "
1105 "unmarshall_sec_desc failed: %s\n",
1106 nt_errstr(status)));
1107 reply_nterror(req, status);
1108 goto out;
1109 }
1110 }
1111
1112 if (ea_len) {
1113 if (!lp_ea_support(SNUM(conn))) {
1114 DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
1115 "EA's not supported.\n",
1116 (unsigned int)ea_len));
1117 reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
1118 goto out;
1119 }
1120
1121 if (ea_len < 10) {
1122 DEBUG(10,("call_nt_transact_create - ea_len = %u - "
1123 "too small (should be more than 10)\n",
1124 (unsigned int)ea_len ));
1125 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1126 goto out;
1127 }
1128
1129 /* We have already checked that ea_len <= data_count here. */
1130 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
1131 ea_len);
1132 if (ea_list == NULL) {
1133 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1134 goto out;
1135 }
1136
1137 if (ea_list_has_invalid_name(ea_list)) {
1138 /* Realloc the size of parameters and data we will return */
1139 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1140 /* Extended response is 32 more byyes. */
1141 param_len = 101;
1142 } else {
1143 param_len = 69;
1144 }
1145 params = nttrans_realloc(ppparams, param_len);
1146 if(params == NULL) {
1147 reply_nterror(req, NT_STATUS_NO_MEMORY);
1148 goto out;
1149 }
1150
1151 memset(params, '\0', param_len);
1152 send_nt_replies(conn, req, STATUS_INVALID_EA_NAME,
1153 params, param_len, NULL, 0);
1154 goto out;
1155 }
1156 }
1157
1158 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1159 if (oplock_request) {
1160 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1161 ? BATCH_OPLOCK : 0;
1162 }
1163
1164 /*
1165 * Bug #6898 - clients using Windows opens should
1166 * never be able to set this attribute into the
1167 * VFS.
1168 */
1169 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
1170
1171 status = SMB_VFS_CREATE_FILE(
1172 conn, /* conn */
1173 req, /* req */
1174 root_dir_fid, /* root_dir_fid */
1175 smb_fname, /* fname */
1176 access_mask, /* access_mask */
1177 share_access, /* share_access */
1178 create_disposition, /* create_disposition*/
1179 create_options, /* create_options */
1180 file_attributes, /* file_attributes */
1181 oplock_request, /* oplock_request */
1182 allocation_size, /* allocation_size */
1183 0, /* private_flags */
1184 sd, /* sd */
1185 ea_list, /* ea_list */
1186 &fsp, /* result */
1187 &info); /* pinfo */
1188
1189 if(!NT_STATUS_IS_OK(status)) {
1190 if (open_was_deferred(req->sconn, req->mid)) {
1191 /* We have re-scheduled this call, no error. */
1192 return;
1193 }
1194 reply_openerror(req, status);
1195 goto out;
1196 }
1197
1198 /* Ensure we're pointing at the correct stat struct. */
1199 TALLOC_FREE(smb_fname);
1200 smb_fname = fsp->fsp_name;
1201
1202 /*
1203 * If the caller set the extended oplock request bit
1204 * and we granted one (by whatever means) - set the
1205 * correct bit for extended oplock reply.
1206 */
1207
1208 if (oplock_request &&
1209 (lp_fake_oplocks(SNUM(conn))
1210 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1211
1212 /*
1213 * Exclusive oplock granted
1214 */
1215
1216 if (flags & REQUEST_BATCH_OPLOCK) {
1217 oplock_granted = BATCH_OPLOCK_RETURN;
1218 } else {
1219 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1220 }
1221 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1222 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1223 } else {
1224 oplock_granted = NO_OPLOCK_RETURN;
1225 }
1226
1227 file_len = smb_fname->st.st_ex_size;
1228
1229 /* Realloc the size of parameters and data we will return */
1230 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1231 /* Extended response is 32 more byyes. */
1232 param_len = 101;
1233 } else {
1234 param_len = 69;
1235 }
1236 params = nttrans_realloc(ppparams, param_len);
1237 if(params == NULL) {
1238 reply_nterror(req, NT_STATUS_NO_MEMORY);
1239 goto out;
1240 }
1241
1242 p = params;
1243 SCVAL(p, 0, oplock_granted);
1244
1245 p += 2;
1246 SSVAL(p,0,fsp->fnum);
1247 p += 2;
1248 if ((create_disposition == FILE_SUPERSEDE)
1249 && (info == FILE_WAS_OVERWRITTEN)) {
1250 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1251 } else {
1252 SIVAL(p,0,info);
1253 }
1254 p += 8;
1255
1256 fattr = dos_mode(conn, smb_fname);
1257 if (fattr == 0) {
1258 fattr = FILE_ATTRIBUTE_NORMAL;
1259 }
1260
1261 /* Create time. */
1262 create_timespec = get_create_timespec(conn, fsp, smb_fname);
1263 a_timespec = smb_fname->st.st_ex_atime;
1264 m_timespec = smb_fname->st.st_ex_mtime;
1265 c_timespec = get_change_timespec(conn, fsp, smb_fname);
1266
1267 if (lp_dos_filetime_resolution(SNUM(conn))) {
1268 dos_filetime_timespec(&create_timespec);
1269 dos_filetime_timespec(&a_timespec);
1270 dos_filetime_timespec(&m_timespec);
1271 dos_filetime_timespec(&c_timespec);
1272 }
1273
1274 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
1275 p += 8;
1276 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
1277 p += 8;
1278 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
1279 p += 8;
1280 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
1281 p += 8;
1282 SIVAL(p,0,fattr); /* File Attributes. */
1283 p += 4;
1284 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1285 p += 8;
1286 SOFF_T(p,0,file_len);
1287 p += 8;
1288 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1289 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
1290 size_t num_names = 0;
1291 unsigned int num_streams = 0;
1292 struct stream_struct *streams = NULL;
1293
1294 /* Do we have any EA's ? */
1295 status = get_ea_names_from_file(ctx, conn, fsp,
1296 smb_fname->base_name, NULL, &num_names);
1297 if (NT_STATUS_IS_OK(status) && num_names) {
1298 file_status &= ~NO_EAS;
1299 }
1300 status = vfs_streaminfo(conn, NULL, smb_fname->base_name, ctx,
1301 &num_streams, &streams);
1302 /* There is always one stream, ::$DATA. */
1303 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
1304 file_status &= ~NO_SUBSTREAMS;
1305 }
1306 TALLOC_FREE(streams);
1307 SSVAL(p,2,file_status);
1308 }
1309 p += 4;
1310 SCVAL(p,0,fsp->is_directory ? 1 : 0);
1311
1312 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1313 uint32 perms = 0;
1314 p += 25;
1315 if (fsp->is_directory ||
1316 fsp->can_write ||
1317 can_write_to_file(conn, smb_fname)) {
1318 perms = FILE_GENERIC_ALL;
1319 } else {
1320 perms = FILE_GENERIC_READ|FILE_EXECUTE;
1321 }
1322 SIVAL(p,0,perms);
1323 }
1324
1325 DEBUG(5,("call_nt_transact_create: open name = %s\n",
1326 smb_fname_str_dbg(smb_fname)));
1327
1328 /* Send the required number of replies */
1329 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1330 out:
1331 return;
1332 }
1333
1334 /****************************************************************************
1335 Reply to a NT CANCEL request.
1336 conn POINTER CAN BE NULL HERE !
1337 ****************************************************************************/
1338
1339 void reply_ntcancel(struct smb_request *req)
1340 {
1341 /*
1342 * Go through and cancel any pending change notifies.
1343 */
1344
1345 START_PROFILE(SMBntcancel);
1346 srv_cancel_sign_response(req->sconn);
1347 remove_pending_change_notify_requests_by_mid(req->sconn, req->mid);
1348 remove_pending_lock_requests_by_mid_smb1(req->sconn, req->mid);
1349
1350 DEBUG(3,("reply_ntcancel: cancel called on mid = %llu.\n",
1351 (unsigned long long)req->mid));
1352
1353 END_PROFILE(SMBntcancel);
1354 return;
1355 }
1356
1357 /****************************************************************************
1358 Copy a file.
1359 ****************************************************************************/
1360
1361 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1362 connection_struct *conn,
1363 struct smb_request *req,
1364 struct smb_filename *smb_fname_src,
1365 struct smb_filename *smb_fname_dst,
1366 uint32 attrs)
1367 {
1368 files_struct *fsp1,*fsp2;
1369 uint32 fattr;
1370 int info;
1371 off_t ret=-1;
1372 NTSTATUS status = NT_STATUS_OK;
1373 char *parent;
1374
1375 if (!CAN_WRITE(conn)) {
1376 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1377 goto out;
1378 }
1379
1380 /* Source must already exist. */
1381 if (!VALID_STAT(smb_fname_src->st)) {
1382 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1383 goto out;
1384 }
1385
1386 /* Ensure attributes match. */
1387 fattr = dos_mode(conn, smb_fname_src);
1388 if ((fattr & ~attrs) & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) {
1389 status = NT_STATUS_NO_SUCH_FILE;
1390 goto out;
1391 }
1392
1393 /* Disallow if dst file already exists. */
1394 if (VALID_STAT(smb_fname_dst->st)) {
1395 status = NT_STATUS_OBJECT_NAME_COLLISION;
1396 goto out;
1397 }
1398
1399 /* No links from a directory. */
1400 if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1401 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1402 goto out;
1403 }
1404
1405 DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1406 smb_fname_str_dbg(smb_fname_src),
1407 smb_fname_str_dbg(smb_fname_dst)));
1408
1409 status = SMB_VFS_CREATE_FILE(
1410 conn, /* conn */
1411 req, /* req */
1412 0, /* root_dir_fid */
1413 smb_fname_src, /* fname */
1414 FILE_READ_DATA|FILE_READ_ATTRIBUTES|
1415 FILE_READ_EA, /* access_mask */
1416 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1417 FILE_SHARE_DELETE),
1418 FILE_OPEN, /* create_disposition*/
1419 0, /* create_options */
1420 FILE_ATTRIBUTE_NORMAL, /* file_attributes */
1421 NO_OPLOCK, /* oplock_request */
1422 0, /* allocation_size */
1423 0, /* private_flags */
1424 NULL, /* sd */
1425 NULL, /* ea_list */
1426 &fsp1, /* result */
1427 &info); /* pinfo */
1428
1429 if (!NT_STATUS_IS_OK(status)) {
1430 goto out;
1431 }
1432
1433 status = SMB_VFS_CREATE_FILE(
1434 conn, /* conn */
1435 req, /* req */
1436 0, /* root_dir_fid */
1437 smb_fname_dst, /* fname */
1438 FILE_WRITE_DATA|FILE_WRITE_ATTRIBUTES|
1439 FILE_WRITE_EA, /* access_mask */
1440 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1441 FILE_SHARE_DELETE),
1442 FILE_CREATE, /* create_disposition*/
1443 0, /* create_options */
1444 fattr, /* file_attributes */
1445 NO_OPLOCK, /* oplock_request */
1446 0, /* allocation_size */
1447 0, /* private_flags */
1448 NULL, /* sd */
1449 NULL, /* ea_list */
1450 &fsp2, /* result */
1451 &info); /* pinfo */
1452
1453 if (!NT_STATUS_IS_OK(status)) {
1454 close_file(NULL, fsp1, ERROR_CLOSE);
1455 goto out;
1456 }
1457
1458 if (smb_fname_src->st.st_ex_size) {
1459 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1460 }
1461
1462 /*
1463 * As we are opening fsp1 read-only we only expect
1464 * an error on close on fsp2 if we are out of space.
1465 * Thus we don't look at the error return from the
1466 * close of fsp1.
1467 */
1468 close_file(NULL, fsp1, NORMAL_CLOSE);
1469
1470 /* Ensure the modtime is set correctly on the destination file. */
1471 set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1472
1473 status = close_file(NULL, fsp2, NORMAL_CLOSE);
1474
1475 /* Grrr. We have to do this as open_file_ntcreate adds FILE_ATTRIBUTE_ARCHIVE when it
1476 creates the file. This isn't the correct thing to do in the copy
1477 case. JRA */
1478 if (!parent_dirname(talloc_tos(), smb_fname_dst->base_name, &parent,
1479 NULL)) {
1480 status = NT_STATUS_NO_MEMORY;
1481 goto out;
1482 }
1483 file_set_dosmode(conn, smb_fname_dst, fattr, parent, false);
1484 TALLOC_FREE(parent);
1485
1486 if (ret < (off_t)smb_fname_src->st.st_ex_size) {
1487 status = NT_STATUS_DISK_FULL;
1488 goto out;
1489 }
1490 out:
1491 if (!NT_STATUS_IS_OK(status)) {
1492 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1493 nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1494 smb_fname_str_dbg(smb_fname_dst)));
1495 }
1496
1497 return status;
1498 }
1499
1500 /****************************************************************************
1501 Reply to a NT rename request.
1502 ****************************************************************************/
1503
1504 void reply_ntrename(struct smb_request *req)
1505 {
1506 connection_struct *conn = req->conn;
1507 struct smb_filename *smb_fname_old = NULL;
1508 struct smb_filename *smb_fname_new = NULL;
1509 char *oldname = NULL;
1510 char *newname = NULL;
1511 const char *p;
1512 NTSTATUS status;
1513 bool src_has_wcard = False;
1514 bool dest_has_wcard = False;
1515 uint32 attrs;
1516 uint32_t ucf_flags_src = 0;
1517 uint32_t ucf_flags_dst = 0;
1518 uint16 rename_type;
1519 TALLOC_CTX *ctx = talloc_tos();
1520 bool stream_rename = false;
1521
1522 START_PROFILE(SMBntrename);
1523
1524 if (req->wct < 4) {
1525 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1526 goto out;
1527 }
1528
1529 attrs = SVAL(req->vwv+0, 0);
1530 rename_type = SVAL(req->vwv+1, 0);
1531
1532 p = (const char *)req->buf + 1;
1533 p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1534 &status, &src_has_wcard);
1535 if (!NT_STATUS_IS_OK(status)) {
1536 reply_nterror(req, status);
1537 goto out;
1538 }
1539
1540 if (ms_has_wild(oldname)) {
1541 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1542 goto out;
1543 }
1544
1545 p++;
1546 p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1547 &status, &dest_has_wcard);
1548 if (!NT_STATUS_IS_OK(status)) {
1549 reply_nterror(req, status);
1550 goto out;
1551 }
1552
1553 if (!lp_posix_pathnames()) {
1554 /* The newname must begin with a ':' if the
1555 oldname contains a ':'. */
1556 if (strchr_m(oldname, ':')) {
1557 if (newname[0] != ':') {
1558 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1559 goto out;
1560 }
1561 stream_rename = true;
1562 }
1563 }
1564
1565 /*
1566 * If this is a rename operation, allow wildcards and save the
1567 * destination's last component.
1568 */
1569 if (rename_type == RENAME_FLAG_RENAME) {
1570 ucf_flags_src = UCF_COND_ALLOW_WCARD_LCOMP;
1571 ucf_flags_dst = UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1572 }
1573
1574 /* rename_internals() calls unix_convert(), so don't call it here. */
1575 status = filename_convert(ctx, conn,
1576 req->flags2 & FLAGS2_DFS_PATHNAMES,
1577 oldname,
1578 ucf_flags_src,
1579 NULL,
1580 &smb_fname_old);
1581 if (!NT_STATUS_IS_OK(status)) {
1582 if (NT_STATUS_EQUAL(status,
1583 NT_STATUS_PATH_NOT_COVERED)) {
1584 reply_botherror(req,
1585 NT_STATUS_PATH_NOT_COVERED,
1586 ERRSRV, ERRbadpath);
1587 goto out;
1588 }
1589 reply_nterror(req, status);
1590 goto out;
1591 }
1592
1593 status = filename_convert(ctx, conn,
1594 req->flags2 & FLAGS2_DFS_PATHNAMES,
1595 newname,
1596 ucf_flags_dst,
1597 &dest_has_wcard,
1598 &smb_fname_new);
1599 if (!NT_STATUS_IS_OK(status)) {
1600 if (NT_STATUS_EQUAL(status,
1601 NT_STATUS_PATH_NOT_COVERED)) {
1602 reply_botherror(req,
1603 NT_STATUS_PATH_NOT_COVERED,
1604 ERRSRV, ERRbadpath);
1605 goto out;
1606 }
1607 reply_nterror(req, status);
1608 goto out;
1609 }
1610
1611 if (stream_rename) {
1612 /* smb_fname_new must be the same as smb_fname_old. */
1613 TALLOC_FREE(smb_fname_new->base_name);
1614 smb_fname_new->base_name = talloc_strdup(smb_fname_new,
1615 smb_fname_old->base_name);
1616 if (!smb_fname_new->base_name) {
1617 reply_nterror(req, NT_STATUS_NO_MEMORY);
1618 goto out;
1619 }
1620 }
1621
1622 DEBUG(3,("reply_ntrename: %s -> %s\n",
1623 smb_fname_str_dbg(smb_fname_old),
1624 smb_fname_str_dbg(smb_fname_new)));
1625
1626 switch(rename_type) {
1627 case RENAME_FLAG_RENAME:
1628 status = rename_internals(ctx, conn, req,
1629 smb_fname_old, smb_fname_new,
1630 attrs, False, src_has_wcard,
1631 dest_has_wcard,
1632 DELETE_ACCESS);
1633 break;
1634 case RENAME_FLAG_HARD_LINK:
1635 if (src_has_wcard || dest_has_wcard) {
1636 /* No wildcards. */
1637 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1638 } else {
1639 status = hardlink_internals(ctx, conn,
1640 req,
1641 false,
1642 smb_fname_old,
1643 smb_fname_new);
1644 }
1645 break;
1646 case RENAME_FLAG_COPY:
1647 if (src_has_wcard || dest_has_wcard) {
1648 /* No wildcards. */
1649 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1650 } else {
1651 status = copy_internals(ctx, conn, req,
1652 smb_fname_old,
1653 smb_fname_new,
1654 attrs);
1655 }
1656 break;
1657 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1658 status = NT_STATUS_INVALID_PARAMETER;
1659 break;
1660 default:
1661 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1662 break;
1663 }
1664
1665 if (!NT_STATUS_IS_OK(status)) {
1666 if (open_was_deferred(req->sconn, req->mid)) {
1667 /* We have re-scheduled this call. */
1668 goto out;
1669 }
1670
1671 reply_nterror(req, status);
1672 goto out;
1673 }
1674
1675 reply_outbuf(req, 0, 0);
1676 out:
1677 END_PROFILE(SMBntrename);
1678 return;
1679 }
1680
1681 /****************************************************************************
1682 Reply to a notify change - queue the request and
1683 don't allow a directory to be opened.
1684 ****************************************************************************/
1685
1686 static void smbd_smb1_notify_reply(struct smb_request *req,
1687 NTSTATUS error_code,
1688 uint8_t *buf, size_t len)
1689 {
1690 send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1691 }
1692
1693 static void call_nt_transact_notify_change(connection_struct *conn,
1694 struct smb_request *req,
1695 uint16 **ppsetup,
1696 uint32 setup_count,
1697 char **ppparams,
1698 uint32 parameter_count,
1699 char **ppdata, uint32 data_count,
1700 uint32 max_data_count,
1701 uint32 max_param_count)
1702 {
1703 uint16 *setup = *ppsetup;
1704 files_struct *fsp;
1705 uint32 filter;
1706 NTSTATUS status;
1707 bool recursive;
1708
1709 if(setup_count < 6) {
1710 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1711 return;
1712 }
1713
1714 fsp = file_fsp(req, SVAL(setup,4));
1715 filter = IVAL(setup, 0);
1716 recursive = (SVAL(setup, 6) != 0) ? True : False;
1717
1718 DEBUG(3,("call_nt_transact_notify_change\n"));
1719
1720 if(!fsp) {
1721 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1722 return;
1723 }
1724
1725 {
1726 char *filter_string;
1727
1728 if (!(filter_string = notify_filter_string(NULL, filter))) {
1729 reply_nterror(req,NT_STATUS_NO_MEMORY);
1730 return;
1731 }
1732
1733 DEBUG(3,("call_nt_transact_notify_change: notify change "
1734 "called on %s, filter = %s, recursive = %d\n",
1735 fsp_str_dbg(fsp), filter_string, recursive));
1736
1737 TALLOC_FREE(filter_string);
1738 }
1739
1740 if((!fsp->is_directory) || (conn != fsp->conn)) {
1741 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1742 return;
1743 }
1744
1745 if (fsp->notify == NULL) {
1746
1747 status = change_notify_create(fsp, filter, recursive);
1748
1749 if (!NT_STATUS_IS_OK(status)) {
1750 DEBUG(10, ("change_notify_create returned %s\n",
1751 nt_errstr(status)));
1752 reply_nterror(req, status);
1753 return;
1754 }
1755 }
1756
1757 if (change_notify_fsp_has_changes(fsp)) {
1758
1759 /*
1760 * We've got changes pending, respond immediately
1761 */
1762
1763 /*
1764 * TODO: write a torture test to check the filtering behaviour
1765 * here.
1766 */
1767
1768 change_notify_reply(req,
1769 NT_STATUS_OK,
1770 max_param_count,
1771 fsp->notify,
1772 smbd_smb1_notify_reply);
1773
1774 /*
1775 * change_notify_reply() above has independently sent its
1776 * results
1777 */
1778 return;
1779 }
1780
1781 /*
1782 * No changes pending, queue the request
1783 */
1784
1785 status = change_notify_add_request(req,
1786 max_param_count,
1787 filter,
1788 recursive, fsp,
1789 smbd_smb1_notify_reply);
1790 if (!NT_STATUS_IS_OK(status)) {
1791 reply_nterror(req, status);
1792 }
1793 return;
1794 }
1795
1796 /****************************************************************************
1797 Reply to an NT transact rename command.
1798 ****************************************************************************/
1799
1800 static void call_nt_transact_rename(connection_struct *conn,
1801 struct smb_request *req,
1802 uint16 **ppsetup, uint32 setup_count,
1803 char **ppparams, uint32 parameter_count,
1804 char **ppdata, uint32 data_count,
1805 uint32 max_data_count)
1806 {
1807 char *params = *ppparams;
1808 char *new_name = NULL;
1809 files_struct *fsp = NULL;
1810 bool dest_has_wcard = False;
1811 NTSTATUS status;
1812 TALLOC_CTX *ctx = talloc_tos();
1813
1814 if(parameter_count < 5) {
1815 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1816 return;
1817 }
1818
1819 fsp = file_fsp(req, SVAL(params, 0));
1820 if (!check_fsp(conn, req, fsp)) {
1821 return;
1822 }
1823 srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1824 parameter_count - 4,
1825 STR_TERMINATE, &status, &dest_has_wcard);
1826 if (!NT_STATUS_IS_OK(status)) {
1827 reply_nterror(req, status);
1828 return;
1829 }
1830
1831 /*
1832 * W2K3 ignores this request as the RAW-RENAME test
1833 * demonstrates, so we do.
1834 */
1835 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1836
1837 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1838 fsp_str_dbg(fsp), new_name));
1839
1840 return;
1841 }
1842
1843 /******************************************************************************
1844 Fake up a completely empty SD.
1845 *******************************************************************************/
1846
1847 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, struct security_descriptor **ppsd)
1848 {
1849 size_t sd_size;
1850
1851 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1852 if(!*ppsd) {
1853 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1854 return NT_STATUS_NO_MEMORY;
1855 }
1856
1857 return NT_STATUS_OK;
1858 }
1859
1860 /****************************************************************************
1861 Reply to query a security descriptor.
1862 Callable from SMB2 and SMB2.
1863 If it returns NT_STATUS_BUFFER_TOO_SMALL, pdata_size is initialized with
1864 the required size.
1865 ****************************************************************************/
1866
1867 NTSTATUS smbd_do_query_security_desc(connection_struct *conn,
1868 TALLOC_CTX *mem_ctx,
1869 files_struct *fsp,
1870 uint32_t security_info_wanted,
1871 uint32_t max_data_count,
1872 uint8_t **ppmarshalled_sd,
1873 size_t *psd_size)
1874 {
1875 NTSTATUS status;
1876 struct security_descriptor *psd = NULL;
1877 TALLOC_CTX *frame = talloc_stackframe();
1878
1879 /*
1880 * Get the permissions to return.
1881 */
1882
1883 if ((security_info_wanted & SECINFO_SACL) &&
1884 !(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
1885 DEBUG(10, ("Access to SACL denied.\n"));
1886 TALLOC_FREE(frame);
1887 return NT_STATUS_ACCESS_DENIED;
1888 }
1889
1890 if ((security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|SECINFO_GROUP)) &&
1891 !(fsp->access_mask & SEC_STD_READ_CONTROL)) {
1892 DEBUG(10, ("Access to DACL, OWNER, or GROUP denied.\n"));
1893 TALLOC_FREE(frame);
1894 return NT_STATUS_ACCESS_DENIED;
1895 }
1896
1897 if (security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|
1898 SECINFO_GROUP|SECINFO_SACL)) {
1899 /* Don't return SECINFO_LABEL if anything else was
1900 requested. See bug #8458. */
1901 security_info_wanted &= ~SECINFO_LABEL;
1902 }
1903
1904 if (!lp_nt_acl_support(SNUM(conn))) {
1905 status = get_null_nt_acl(frame, &psd);
1906 } else if (security_info_wanted & SECINFO_LABEL) {
1907 /* Like W2K3 return a null object. */
1908 status = get_null_nt_acl(frame, &psd);
1909 } else {
1910 status = SMB_VFS_FGET_NT_ACL(
1911 fsp, security_info_wanted, frame, &psd);
1912 }
1913 if (!NT_STATUS_IS_OK(status)) {
1914 TALLOC_FREE(frame);
1915 return status;
1916 }
1917
1918 if (!(security_info_wanted & SECINFO_OWNER)) {
1919 psd->owner_sid = NULL;
1920 }
1921 if (!(security_info_wanted & SECINFO_GROUP)) {
1922 psd->group_sid = NULL;
1923 }
1924 if (!(security_info_wanted & SECINFO_DACL)) {
1925 psd->type &= ~SEC_DESC_DACL_PRESENT;
1926 psd->dacl = NULL;
1927 }
1928 if (!(security_info_wanted & SECINFO_SACL)) {
1929 psd->type &= ~SEC_DESC_SACL_PRESENT;
1930 psd->sacl = NULL;
1931 }
1932
1933 /* If the SACL/DACL is NULL, but was requested, we mark that it is
1934 * present in the reply to match Windows behavior */
1935 if (psd->sacl == NULL &&
1936 security_info_wanted & SECINFO_SACL)
1937 psd->type |= SEC_DESC_SACL_PRESENT;
1938 if (psd->dacl == NULL &&
1939 security_info_wanted & SECINFO_DACL)
1940 psd->type |= SEC_DESC_DACL_PRESENT;
1941
1942 if (security_info_wanted & SECINFO_LABEL) {
1943 /* Like W2K3 return a null object. */
1944 psd->owner_sid = NULL;
1945 psd->group_sid = NULL;
1946 psd->dacl = NULL;
1947 psd->sacl = NULL;
1948 psd->type &= ~(SEC_DESC_DACL_PRESENT|SEC_DESC_SACL_PRESENT);
1949 }
1950
1951 *psd_size = ndr_size_security_descriptor(psd, 0);
1952
1953 DEBUG(3,("smbd_do_query_security_desc: sd_size = %lu.\n",
1954 (unsigned long)*psd_size));
1955
1956 if (DEBUGLEVEL >= 10) {
1957 DEBUG(10,("smbd_do_query_security_desc for file %s\n",
1958 fsp_str_dbg(fsp)));
1959 NDR_PRINT_DEBUG(security_descriptor, psd);
1960 }
1961
1962 if (max_data_count < *psd_size) {
1963 TALLOC_FREE(frame);
1964 return NT_STATUS_BUFFER_TOO_SMALL;
1965 }
1966
1967 status = marshall_sec_desc(mem_ctx, psd,
1968 ppmarshalled_sd, psd_size);
1969
1970 if (!NT_STATUS_IS_OK(status)) {
1971 TALLOC_FREE(frame);
1972 return status;
1973 }
1974
1975 TALLOC_FREE(frame);
1976 return NT_STATUS_OK;
1977 }
1978
1979 /****************************************************************************
1980 SMB1 reply to query a security descriptor.
1981 ****************************************************************************/
1982
1983 static void call_nt_transact_query_security_desc(connection_struct *conn,
1984 struct smb_request *req,
1985 uint16 **ppsetup,
1986 uint32 setup_count,
1987 char **ppparams,
1988 uint32 parameter_count,
1989 char **ppdata,
1990 uint32 data_count,
1991 uint32 max_data_count)
1992 {
1993 char *params = *ppparams;
1994 char *data = *ppdata;
1995 size_t sd_size = 0;
1996 uint32 security_info_wanted;
1997 files_struct *fsp = NULL;
1998 NTSTATUS status;
1999 uint8_t *marshalled_sd = NULL;
2000
2001 if(parameter_count < 8) {
2002 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2003 return;
2004 }
2005
2006 fsp = file_fsp(req, SVAL(params,0));
2007 if(!fsp) {
2008 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2009 return;
2010 }
2011
2012 security_info_wanted = IVAL(params,4);
2013
2014 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
2015 "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
2016 (unsigned int)security_info_wanted));
2017
2018 params = nttrans_realloc(ppparams, 4);
2019 if(params == NULL) {
2020 reply_nterror(req, NT_STATUS_NO_MEMORY);
2021 return;
2022 }
2023
2024 /*
2025 * Get the permissions to return.
2026 */
2027
2028 status = smbd_do_query_security_desc(conn,
2029 talloc_tos(),
2030 fsp,
2031 security_info_wanted,
2032 max_data_count,
2033 &marshalled_sd,
2034 &sd_size);
2035
2036 if (NT_STATUS_EQUAL(status, NT_STATUS_BUFFER_TOO_SMALL)) {
2037 SIVAL(params,0,(uint32_t)sd_size);
2038 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2039 params, 4, NULL, 0);
2040 return;
2041 }
2042
2043 if (!NT_STATUS_IS_OK(status)) {
2044 reply_nterror(req, status);
2045 return;
2046 }
2047
2048 SMB_ASSERT(sd_size > 0);
2049
2050 SIVAL(params,0,(uint32_t)sd_size);
2051
2052 if (max_data_count < sd_size) {
2053 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2054 params, 4, NULL, 0);
2055 return;
2056 }
2057
2058 /*
2059 * Allocate the data we will return.
2060 */
2061
2062 data = nttrans_realloc(ppdata, sd_size);
2063 if(data == NULL) {
2064 reply_nterror(req, NT_STATUS_NO_MEMORY);
2065 return;
2066 }
2067
2068 memcpy(data, marshalled_sd, sd_size);
2069
2070 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
2071
2072 return;
2073 }
2074
2075 /****************************************************************************
2076 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
2077 ****************************************************************************/
2078
2079 static void call_nt_transact_set_security_desc(connection_struct *conn,
2080 struct smb_request *req,
2081 uint16 **ppsetup,
2082 uint32 setup_count,
2083 char **ppparams,
2084 uint32 parameter_count,
2085 char **ppdata,
2086 uint32 data_count,
2087 uint32 max_data_count)
2088 {
2089 char *params= *ppparams;
2090 char *data = *ppdata;
2091 files_struct *fsp = NULL;
2092 uint32 security_info_sent = 0;
2093 NTSTATUS status;
2094
2095 if(parameter_count < 8) {
2096 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2097 return;
2098 }
2099
2100 if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
2101 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2102 return;
2103 }
2104
2105 if (!CAN_WRITE(fsp->conn)) {
2106 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2107 return;
2108 }
2109
2110 if(!lp_nt_acl_support(SNUM(conn))) {
2111 goto done;
2112 }
2113
2114 security_info_sent = IVAL(params,4);
2115
2116 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
2117 fsp_str_dbg(fsp), (unsigned int)security_info_sent));
2118
2119 if (data_count == 0) {
2120 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2121 return;
2122 }
2123
2124 status = set_sd_blob(fsp, (uint8 *)data, data_count, security_info_sent);
2125
2126 if (!NT_STATUS_IS_OK(status)) {
2127 reply_nterror(req, status);
2128 return;
2129 }
2130
2131 done:
2132 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2133 return;
2134 }
2135
2136 /****************************************************************************
2137 Reply to NT IOCTL
2138 ****************************************************************************/
2139
2140 static void call_nt_transact_ioctl(connection_struct *conn,
2141 struct smb_request *req,
2142 uint16 **ppsetup, uint32 setup_count,
2143 char **ppparams, uint32 parameter_count,
2144 char **ppdata, uint32 data_count,
2145 uint32 max_data_count)
2146 {
2147 NTSTATUS status;
2148 uint32 function;
2149 uint16 fidnum;
2150 files_struct *fsp;
2151 uint8 isFSctl;
2152 uint8 compfilter;
2153 char *out_data = NULL;
2154 uint32 out_data_len = 0;
2155 char *pdata = *ppdata;
2156 TALLOC_CTX *ctx = talloc_tos();
2157
2158 if (setup_count != 8) {
2159 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
2160 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2161 return;
2162 }
2163
2164 function = IVAL(*ppsetup, 0);
2165 fidnum = SVAL(*ppsetup, 4);
2166 isFSctl = CVAL(*ppsetup, 6);
2167 compfilter = CVAL(*ppsetup, 7);
2168
2169 DEBUG(10, ("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
2170 function, fidnum, isFSctl, compfilter));
2171
2172 fsp=file_fsp(req, fidnum);
2173
2174 /*
2175 * We don't really implement IOCTLs, especially on files.
2176 */
2177 if (!isFSctl) {
2178 DEBUG(10, ("isFSctl: 0x%02X indicates IOCTL, not FSCTL!\n",
2179 isFSctl));
2180 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2181 return;
2182 }
2183
2184 /* Has to be for an open file! */
2185 if (!check_fsp_open(conn, req, fsp)) {
2186 return;
2187 }
2188
2189 SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
2190
2191 /*
2192 * out_data might be allocated by the VFS module, but talloc should be
2193 * used, and should be cleaned up when the request ends.
2194 */
2195 status = SMB_VFS_FSCTL(fsp,
2196 ctx,
2197 function,
2198 req->flags2,
2199 (uint8_t *)pdata,
2200 data_count,
2201 (uint8_t **)&out_data,
2202 max_data_count,
2203 &out_data_len);
2204 if (!NT_STATUS_IS_OK(status)) {
2205 reply_nterror(req, status);
2206 } else {
2207 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, out_data, out_data_len);
2208 }
2209 }
2210
2211
2212 #ifdef HAVE_SYS_QUOTAS
2213 /****************************************************************************
2214 Reply to get user quota
2215 ****************************************************************************/
2216
2217 static void call_nt_transact_get_user_quota(connection_struct *conn,
2218 struct smb_request *req,
2219 uint16 **ppsetup,
2220 uint32 setup_count,
2221 char **ppparams,
2222 uint32 parameter_count,
2223 char **ppdata,
2224 uint32 data_count,
2225 uint32 max_data_count)
2226 {
2227 NTSTATUS nt_status = NT_STATUS_OK;
2228 char *params = *ppparams;
2229 char *pdata = *ppdata;
2230 char *entry;
2231 int data_len=0,param_len=0;
2232 int qt_len=0;
2233 int entry_len = 0;
2234 files_struct *fsp = NULL;
2235 uint16 level = 0;
2236 size_t sid_len;
2237 struct dom_sid sid;
2238 bool start_enum = True;
2239 SMB_NTQUOTA_STRUCT qt;
2240 SMB_NTQUOTA_LIST *tmp_list;
2241 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2242
2243 ZERO_STRUCT(qt);
2244
2245 /* access check */
2246 if (get_current_uid(conn) != 0) {
2247 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2248 "[%s]\n", lp_servicename(talloc_tos(), SNUM(conn)),
2249 conn->session_info->unix_info->unix_name));
2250 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2251 return;
2252 }
2253
2254 /*
2255 * Ensure minimum number of parameters sent.
2256 */
2257
2258 if (parameter_count < 4) {
2259 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2260 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2261 return;
2262 }
2263
2264 /* maybe we can check the quota_fnum */
2265 fsp = file_fsp(req, SVAL(params,0));
2266 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2267 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2268 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2269 return;
2270 }
2271
2272 /* the NULL pointer checking for fsp->fake_file_handle->pd
2273 * is done by CHECK_NTQUOTA_HANDLE_OK()
2274 */
2275 qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2276
2277 level = SVAL(params,2);
2278
2279 /* unknown 12 bytes leading in params */
2280
2281 switch (level) {
2282 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2283 /* seems that we should continue with the enum here --metze */
2284
2285 if (qt_handle->quota_list!=NULL &&
2286 qt_handle->tmp_list==NULL) {
2287
2288 /* free the list */
2289 free_ntquota_list(&(qt_handle->quota_list));
2290
2291 /* Realloc the size of parameters and data we will return */
2292 param_len = 4;
2293 params = nttrans_realloc(ppparams, param_len);
2294 if(params == NULL) {
2295 reply_nterror(req, NT_STATUS_NO_MEMORY);
2296 return;
2297 }
2298
2299 data_len = 0;
2300 SIVAL(params,0,data_len);
2301
2302 break;
2303 }
2304
2305 start_enum = False;
2306
2307 case TRANSACT_GET_USER_QUOTA_LIST_START:
2308
2309 if (qt_handle->quota_list==NULL &&
2310 qt_handle->tmp_list==NULL) {
2311 start_enum = True;
2312 }
2313
2314 if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2315 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2316 return;
2317 }
2318
2319 /* Realloc the size of parameters and data we will return */
2320 param_len = 4;
2321 params = nttrans_realloc(ppparams, param_len);
2322 if(params == NULL) {
2323 reply_nterror(req, NT_STATUS_NO_MEMORY);
2324 return;
2325 }
2326
2327 /* we should not trust the value in max_data_count*/
2328 max_data_count = MIN(max_data_count,2048);
2329
2330 pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2331 if(pdata == NULL) {
2332 reply_nterror(req, NT_STATUS_NO_MEMORY);
2333 return;
2334 }
2335
2336 entry = pdata;
2337
2338 /* set params Size of returned Quota Data 4 bytes*/
2339 /* but set it later when we know it */
2340
2341 /* for each entry push the data */
2342
2343 if (start_enum) {
2344 qt_handle->tmp_list = qt_handle->quota_list;
2345 }
2346
2347 tmp_list = qt_handle->tmp_list;
2348
2349 for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2350 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2351
2352 sid_len = ndr_size_dom_sid(
2353 &tmp_list->quotas->sid, 0);
2354 entry_len = 40 + sid_len;
2355
2356 /* nextoffset entry 4 bytes */
2357 SIVAL(entry,0,entry_len);
2358
2359 /* then the len of the SID 4 bytes */
2360 SIVAL(entry,4,sid_len);
2361
2362 /* unknown data 8 bytes uint64_t */
2363 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2364
2365 /* the used disk space 8 bytes uint64_t */
2366 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2367
2368 /* the soft quotas 8 bytes uint64_t */
2369 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2370
2371 /* the hard quotas 8 bytes uint64_t */
2372 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2373
2374 /* and now the SID */
2375 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2376 }
2377
2378 qt_handle->tmp_list = tmp_list;
2379
2380 /* overwrite the offset of the last entry */
2381 SIVAL(entry-entry_len,0,0);
2382
2383 data_len = 4+qt_len;
2384 /* overwrite the params quota_data_len */
2385 SIVAL(params,0,data_len);
2386
2387 break;
2388
2389 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2390
2391 /* unknown 4 bytes IVAL(pdata,0) */
2392
2393 if (data_count < 8) {
2394 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2395 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2396 return;
2397 }
2398
2399 sid_len = IVAL(pdata,4);
2400 /* Ensure this is less than 1mb. */
2401 if (sid_len > (1024*1024)) {
2402 reply_nterror(req, NT_STATUS_NO_MEMORY);
2403 return;
2404 }
2405
2406 if (data_count < 8+sid_len) {
2407 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2408 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2409 return;
2410 }
2411
2412 data_len = 4+40+sid_len;
2413
2414 if (max_data_count < data_len) {
2415 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2416 max_data_count, data_len));
2417 param_len = 4;
2418 SIVAL(params,0,data_len);
2419 data_len = 0;
2420 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2421 break;
2422 }
2423
2424 if (!sid_parse(pdata+8,sid_len,&sid)) {
2425 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2426 return;
2427 }
2428
2429 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2430 ZERO_STRUCT(qt);
2431 /*
2432 * we have to return zero's in all fields
2433 * instead of returning an error here
2434 * --metze
2435 */
2436 }
2437
2438 /* Realloc the size of parameters and data we will return */
2439 param_len = 4;
2440 params = nttrans_realloc(ppparams, param_len);
2441 if(params == NULL) {
2442 reply_nterror(req, NT_STATUS_NO_MEMORY);
2443 return;
2444 }
2445
2446 pdata = nttrans_realloc(ppdata, data_len);
2447 if(pdata == NULL) {
2448 reply_nterror(req, NT_STATUS_NO_MEMORY);
2449 return;
2450 }
2451
2452 entry = pdata;
2453
2454 /* set params Size of returned Quota Data 4 bytes*/
2455 SIVAL(params,0,data_len);
2456
2457 /* nextoffset entry 4 bytes */
2458 SIVAL(entry,0,0);
2459
2460 /* then the len of the SID 4 bytes */
2461 SIVAL(entry,4,sid_len);
2462
2463 /* unknown data 8 bytes uint64_t */
2464 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2465
2466 /* the used disk space 8 bytes uint64_t */
2467 SBIG_UINT(entry,16,qt.usedspace);
2468
2469 /* the soft quotas 8 bytes uint64_t */
2470 SBIG_UINT(entry,24,qt.softlim);
2471
2472 /* the hard quotas 8 bytes uint64_t */
2473 SBIG_UINT(entry,32,qt.hardlim);
2474
2475 /* and now the SID */
2476 sid_linearize(entry+40, sid_len, &sid);
2477
2478 break;
2479
2480 default:
2481 DEBUG(0, ("do_nt_transact_get_user_quota: %s: unknown "
2482 "level 0x%04hX\n",
2483 fsp_fnum_dbg(fsp), level));
2484 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2485 return;
2486 break;
2487 }
2488
2489 send_nt_replies(conn, req, nt_status, params, param_len,
2490 pdata, data_len);
2491 }
2492
2493 /****************************************************************************
2494 Reply to set user quota
2495 ****************************************************************************/
2496
2497 static void call_nt_transact_set_user_quota(connection_struct *conn,
2498 struct smb_request *req,
2499 uint16 **ppsetup,
2500 uint32 setup_count,
2501 char **ppparams,
2502 uint32 parameter_count,
2503 char **ppdata,
2504 uint32 data_count,
2505 uint32 max_data_count)
2506 {
2507 char *params = *ppparams;
2508 char *pdata = *ppdata;
2509 int data_len=0,param_len=0;
2510 SMB_NTQUOTA_STRUCT qt;
2511 size_t sid_len;
2512 struct dom_sid sid;
2513 files_struct *fsp = NULL;
2514
2515 ZERO_STRUCT(qt);
2516
2517 /* access check */
2518 if (get_current_uid(conn) != 0) {
2519 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2520 "[%s]\n", lp_servicename(talloc_tos(), SNUM(conn)),
2521 conn->session_info->unix_info->unix_name));
2522 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2523 return;
2524 }
2525
2526 /*
2527 * Ensure minimum number of parameters sent.
2528 */
2529
2530 if (parameter_count < 2) {
2531 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2532 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2533 return;
2534 }
2535
2536 /* maybe we can check the quota_fnum */
2537 fsp = file_fsp(req, SVAL(params,0));
2538 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2539 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2540 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2541 return;
2542 }
2543
2544 if (data_count < 40) {
2545 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2546 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2547 return;
2548 }
2549
2550 /* offset to next quota record.
2551 * 4 bytes IVAL(pdata,0)
2552 * unused here...
2553 */
2554
2555 /* sid len */
2556 sid_len = IVAL(pdata,4);
2557
2558 if (data_count < 40+sid_len || (40+sid_len < sid_len)) {
2559 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2560 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2561 return;
2562 }
2563
2564 /* unknown 8 bytes in pdata
2565 * maybe its the change time in NTTIME
2566 */
2567
2568 /* the used space 8 bytes (uint64_t)*/
2569 qt.usedspace = BVAL(pdata,16);
2570
2571 /* the soft quotas 8 bytes (uint64_t)*/
2572 qt.softlim = BVAL(pdata,24);
2573
2574 /* the hard quotas 8 bytes (uint64_t)*/
2575 qt.hardlim = BVAL(pdata,32);
2576
2577 if (!sid_parse(pdata+40,sid_len,&sid)) {
2578 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2579 return;
2580 }
2581
2582 DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2583
2584 /* 44 unknown bytes left... */
2585
2586 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2587 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2588 return;
2589 }
2590
2591 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2592 pdata, data_len);
2593 }
2594 #endif /* HAVE_SYS_QUOTAS */
2595
2596 static void handle_nttrans(connection_struct *conn,
2597 struct trans_state *state,
2598 struct smb_request *req)
2599 {
2600 if (get_Protocol() >= PROTOCOL_NT1) {
2601 req->flags2 |= 0x40; /* IS_LONG_NAME */
2602 SSVAL(discard_const_p(uint8_t, req->inbuf),smb_flg2,req->flags2);
2603 }
2604
2605
2606 SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2607
2608 /* Now we must call the relevant NT_TRANS function */
2609 switch(state->call) {
2610 case NT_TRANSACT_CREATE:
2611 {
2612 START_PROFILE(NT_transact_create);
2613 call_nt_transact_create(
2614 conn, req,
2615 &state->setup, state->setup_count,
2616 &state->param, state->total_param,
2617 &state->data, state->total_data,
2618 state->max_data_return);
2619 END_PROFILE(NT_transact_create);
2620 break;
2621 }
2622
2623 case NT_TRANSACT_IOCTL:
2624 {
2625 START_PROFILE(NT_transact_ioctl);
2626 call_nt_transact_ioctl(
2627 conn, req,
2628 &state->setup, state->setup_count,
2629 &state->param, state->total_param,
2630 &state->data, state->total_data,
2631 state->max_data_return);
2632 END_PROFILE(NT_transact_ioctl);
2633 break;
2634 }
2635
2636 case NT_TRANSACT_SET_SECURITY_DESC:
2637 {
2638 START_PROFILE(NT_transact_set_security_desc);
2639 call_nt_transact_set_security_desc(
2640 conn, req,
2641 &state->setup, state->setup_count,
2642 &state->param, state->total_param,
2643 &state->data, state->total_data,
2644 state->max_data_return);
2645 END_PROFILE(NT_transact_set_security_desc);
2646 break;
2647 }
2648
2649 case NT_TRANSACT_NOTIFY_CHANGE:
2650 {
2651 START_PROFILE(NT_transact_notify_change);
2652 call_nt_transact_notify_change(
2653 conn, req,
2654 &state->setup, state->setup_count,
2655 &state->param, state->total_param,
2656 &state->data, state->total_data,
2657 state->max_data_return,
2658 state->max_param_return);
2659 END_PROFILE(NT_transact_notify_change);
2660 break;
2661 }
2662
2663 case NT_TRANSACT_RENAME:
2664 {
2665 START_PROFILE(NT_transact_rename);
2666 call_nt_transact_rename(
2667 conn, req,
2668 &state->setup, state->setup_count,
2669 &state->param, state->total_param,
2670 &state->data, state->total_data,
2671 state->max_data_return);
2672 END_PROFILE(NT_transact_rename);
2673 break;
2674 }
2675
2676 case NT_TRANSACT_QUERY_SECURITY_DESC:
2677 {
2678 START_PROFILE(NT_transact_query_security_desc);
2679 call_nt_transact_query_security_desc(
2680 conn, req,
2681 &state->setup, state->setup_count,
2682 &state->param, state->total_param,
2683 &state->data, state->total_data,
2684 state->max_data_return);
2685 END_PROFILE(NT_transact_query_security_desc);
2686 break;
2687 }
2688
2689 #ifdef HAVE_SYS_QUOTAS
2690 case NT_TRANSACT_GET_USER_QUOTA:
2691 {
2692 START_PROFILE(NT_transact_get_user_quota);
2693 call_nt_transact_get_user_quota(
2694 conn, req,
2695 &state->setup, state->setup_count,
2696 &state->param, state->total_param,
2697 &state->data, state->total_data,
2698 state->max_data_return);
2699 END_PROFILE(NT_transact_get_user_quota);
2700 break;
2701 }
2702
2703 case NT_TRANSACT_SET_USER_QUOTA:
2704 {
2705 START_PROFILE(NT_transact_set_user_quota);
2706 call_nt_transact_set_user_quota(
2707 conn, req,
2708 &state->setup, state->setup_count,
2709 &state->param, state->total_param,
2710 &state->data, state->total_data,
2711 state->max_data_return);
2712 END_PROFILE(NT_transact_set_user_quota);
2713 break;
2714 }
2715 #endif /* HAVE_SYS_QUOTAS */
2716
2717 default:
2718 /* Error in request */
2719 DEBUG(0,("handle_nttrans: Unknown request %d in "
2720 "nttrans call\n", state->call));
2721 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2722 return;
2723 }
2724 return;
2725 }
2726
2727 /****************************************************************************
2728 Reply to a SMBNTtrans.
2729 ****************************************************************************/
2730
2731 void reply_nttrans(struct smb_request *req)
2732 {
2733 connection_struct *conn = req->conn;
2734 uint32_t pscnt;
2735 uint32_t psoff;
2736 uint32_t dscnt;
2737 uint32_t dsoff;
2738 uint16 function_code;
2739 NTSTATUS result;
2740 struct trans_state *state;
2741
2742 START_PROFILE(SMBnttrans);
2743
2744 if (req->wct < 19) {
2745 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2746 END_PROFILE(SMBnttrans);
2747 return;
2748 }
2749
2750 pscnt = IVAL(req->vwv+9, 1);
2751 psoff = IVAL(req->vwv+11, 1);
2752 dscnt = IVAL(req->vwv+13, 1);
2753 dsoff = IVAL(req->vwv+15, 1);
2754 function_code = SVAL(req->vwv+18, 0);
2755
2756 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2757 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2758 END_PROFILE(SMBnttrans);
2759 return;
2760 }
2761
2762 result = allow_new_trans(conn->pending_trans, req->mid);
2763 if (!NT_STATUS_IS_OK(result)) {
2764 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2765 reply_nterror(req, result);
2766 END_PROFILE(SMBnttrans);
2767 return;
2768 }
2769
2770 if ((state = talloc(conn, struct trans_state)) == NULL) {
2771 reply_nterror(req, NT_STATUS_NO_MEMORY);
2772 END_PROFILE(SMBnttrans);
2773 return;
2774 }
2775
2776 state->cmd = SMBnttrans;
2777
2778 state->mid = req->mid;
2779 state->vuid = req->vuid;
2780 state->total_data = IVAL(req->vwv+3, 1);
2781 state->data = NULL;
2782 state->total_param = IVAL(req->vwv+1, 1);
2783 state->param = NULL;
2784 state->max_data_return = IVAL(req->vwv+7, 1);
2785 state->max_param_return = IVAL(req->vwv+5, 1);
2786
2787 /* setup count is in *words* */
2788 state->setup_count = 2*CVAL(req->vwv+17, 1);
2789 state->setup = NULL;
2790 state->call = function_code;
2791
2792 DEBUG(10, ("num_setup=%u, "
2793 "param_total=%u, this_param=%u, max_param=%u, "
2794 "data_total=%u, this_data=%u, max_data=%u, "
2795 "param_offset=%u, data_offset=%u\n",
2796 (unsigned)state->setup_count,
2797 (unsigned)state->total_param, (unsigned)pscnt,
2798 (unsigned)state->max_param_return,
2799 (unsigned)state->total_data, (unsigned)dscnt,
2800 (unsigned)state->max_data_return,
2801 (unsigned)psoff, (unsigned)dsoff));
2802
2803 /*
2804 * All nttrans messages we handle have smb_wct == 19 +
2805 * state->setup_count. Ensure this is so as a sanity check.
2806 */
2807
2808 if(req->wct != 19 + (state->setup_count/2)) {
2809 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2810 req->wct, 19 + (state->setup_count/2)));
2811 goto bad_param;
2812 }
2813
2814 /* Don't allow more than 128mb for each value. */
2815 if ((state->total_data > (1024*1024*128)) ||
2816 (state->total_param > (1024*1024*128))) {
2817 reply_nterror(req, NT_STATUS_NO_MEMORY);
2818 END_PROFILE(SMBnttrans);
2819 return;
2820 }
2821
2822 if ((dscnt > state->total_data) || (pscnt > state->total_param))
2823 goto bad_param;
2824
2825 if (state->total_data) {
2826
2827 if (trans_oob(state->total_data, 0, dscnt)
2828 || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
2829 goto bad_param;
2830 }
2831
2832 /* Can't use talloc here, the core routines do realloc on the
2833 * params and data. */
2834 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2835 DEBUG(0,("reply_nttrans: data malloc fail for %u "
2836 "bytes !\n", (unsigned int)state->total_data));
2837 TALLOC_FREE(state);
2838 reply_nterror(req, NT_STATUS_NO_MEMORY);
2839 END_PROFILE(SMBnttrans);
2840 return;
2841 }
2842
2843 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2844 }
2845
2846 if (state->total_param) {
2847
2848 if (trans_oob(state->total_param, 0, pscnt)
2849 || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
2850 goto bad_param;
2851 }
2852
2853 /* Can't use talloc here, the core routines do realloc on the
2854 * params and data. */
2855 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2856 DEBUG(0,("reply_nttrans: param malloc fail for %u "
2857 "bytes !\n", (unsigned int)state->total_param));
2858 SAFE_FREE(state->data);
2859 TALLOC_FREE(state);
2860 reply_nterror(req, NT_STATUS_NO_MEMORY);
2861 END_PROFILE(SMBnttrans);
2862 return;
2863 }
2864
2865 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2866 }
2867
2868 state->received_data = dscnt;
2869 state->received_param = pscnt;
2870
2871 if(state->setup_count > 0) {
2872 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2873 state->setup_count));
2874
2875 /*
2876 * No overflow possible here, state->setup_count is an
2877 * unsigned int, being filled by a single byte from
2878 * CVAL(req->vwv+13, 0) above. The cast in the comparison
2879 * below is not necessary, it's here to clarify things. The
2880 * validity of req->vwv and req->wct has been checked in
2881 * init_smb_request already.
2882 */
2883 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
2884 goto bad_param;
2885 }
2886
2887 state->setup = (uint16 *)TALLOC(state, state->setup_count);
2888 if (state->setup == NULL) {
2889 DEBUG(0,("reply_nttrans : Out of memory\n"));
2890 SAFE_FREE(state->data);
2891 SAFE_FREE(state->param);
2892 TALLOC_FREE(state);
2893 reply_nterror(req, NT_STATUS_NO_MEMORY);
2894 END_PROFILE(SMBnttrans);
2895 return;
2896 }
2897
2898 memcpy(state->setup, req->vwv+19, state->setup_count);
2899 dump_data(10, (uint8 *)state->setup, state->setup_count);
2900 }
2901
2902 if ((state->received_data == state->total_data) &&
2903 (state->received_param == state->total_param)) {
2904 handle_nttrans(conn, state, req);
2905 SAFE_FREE(state->param);
2906 SAFE_FREE(state->data);
2907 TALLOC_FREE(state);
2908 END_PROFILE(SMBnttrans);
2909 return;
2910 }
2911
2912 DLIST_ADD(conn->pending_trans, state);
2913
2914 /* We need to send an interim response then receive the rest
2915 of the parameter/data bytes */
2916 reply_outbuf(req, 0, 0);
2917 show_msg((char *)req->outbuf);
2918 END_PROFILE(SMBnttrans);
2919 return;
2920
2921 bad_param:
2922
2923 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2924 SAFE_FREE(state->data);
2925 SAFE_FREE(state->param);
2926 TALLOC_FREE(state);
2927 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2928 END_PROFILE(SMBnttrans);
2929 return;
2930 }
2931
2932 /****************************************************************************
2933 Reply to a SMBnttranss
2934 ****************************************************************************/
2935
2936 void reply_nttranss(struct smb_request *req)
2937 {
2938 connection_struct *conn = req->conn;
2939 uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
2940 struct trans_state *state;
2941
2942 START_PROFILE(SMBnttranss);
2943
2944 show_msg((const char *)req->inbuf);
2945
2946 /* Windows clients expect all replies to
2947 an NT transact secondary (SMBnttranss 0xA1)
2948 to have a command code of NT transact
2949 (SMBnttrans 0xA0). See bug #8989 for details. */
2950 req->cmd = SMBnttrans;
2951
2952 if (req->wct < 18) {
2953 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2954 END_PROFILE(SMBnttranss);
2955 return;
2956 }
2957
2958 for (state = conn->pending_trans; state != NULL;
2959 state = state->next) {
2960 if (state->mid == req->mid) {
2961 break;
2962 }
2963 }
2964
2965 if ((state == NULL) || (state->cmd != SMBnttrans)) {
2966 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2967 END_PROFILE(SMBnttranss);
2968 return;
2969 }
2970
2971 /* Revise state->total_param and state->total_data in case they have
2972 changed downwards */
2973 if (IVAL(req->vwv+1, 1) < state->total_param) {
2974 state->total_param = IVAL(req->vwv+1, 1);
2975 }
2976 if (IVAL(req->vwv+3, 1) < state->total_data) {
2977 state->total_data = IVAL(req->vwv+3, 1);
2978 }
2979
2980 pcnt = IVAL(req->vwv+5, 1);
2981 poff = IVAL(req->vwv+7, 1);
2982 pdisp = IVAL(req->vwv+9, 1);
2983
2984 dcnt = IVAL(req->vwv+11, 1);
2985 doff = IVAL(req->vwv+13, 1);
2986 ddisp = IVAL(req->vwv+15, 1);
2987
2988 state->received_param += pcnt;
2989 state->received_data += dcnt;
2990
2991 if ((state->received_data > state->total_data) ||
2992 (state->received_param > state->total_param))
2993 goto bad_param;
2994
2995 if (pcnt) {
2996 if (trans_oob(state->total_param, pdisp, pcnt)
2997 || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
2998 goto bad_param;
2999 }
3000 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
3001 }
3002
3003 if (dcnt) {
3004 if (trans_oob(state->total_data, ddisp, dcnt)
3005 || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
3006 goto bad_param;
3007 }
3008 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
3009 }
3010
3011 if ((state->received_param < state->total_param) ||
3012 (state->received_data < state->total_data)) {
3013 END_PROFILE(SMBnttranss);
3014 return;
3015 }
3016
3017 handle_nttrans(conn, state, req);
3018
3019 DLIST_REMOVE(conn->pending_trans, state);
3020 SAFE_FREE(state->data);
3021 SAFE_FREE(state->param);
3022 TALLOC_FREE(state);
3023 END_PROFILE(SMBnttranss);
3024 return;
3025
3026 bad_param:
3027
3028 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
3029 DLIST_REMOVE(conn->pending_trans, state);
3030 SAFE_FREE(state->data);
3031 SAFE_FREE(state->param);
3032 TALLOC_FREE(state);
3033 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3034 END_PROFILE(SMBnttranss);
3035 return;
3036 }
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