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Rename set_sd() to set_sd_blob() - this describes what it does.
[Samba/gebeck_regimport.git] / source3 / smbd / nttrans.c
blob107e8f35584cc9634185a420020d489ebc20444a
1 /*
2 Unix SMB/CIFS implementation.
3 SMB NT transaction handling
4 Copyright (C) Jeremy Allison 1994-2007
5 Copyright (C) Stefan (metze) Metzmacher 2003
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
19 */
20
21 #include "includes.h"
22 #include "system/filesys.h"
23 #include "smbd/smbd.h"
24 #include "smbd/globals.h"
25 #include "fake_file.h"
26 #include "../libcli/security/security.h"
27 #include "../librpc/gen_ndr/ndr_security.h"
28 #include "passdb/lookup_sid.h"
29 #include "auth.h"
30 #include "smbprofile.h"
31 #include "libsmb/libsmb.h"
32
33 extern const struct generic_mapping file_generic_mapping;
34
35 static char *nttrans_realloc(char **ptr, size_t size)
36 {
37 if (ptr==NULL) {
38 smb_panic("nttrans_realloc() called with NULL ptr");
39 }
40
41 *ptr = (char *)SMB_REALLOC(*ptr, size);
42 if(*ptr == NULL) {
43 return NULL;
44 }
45 memset(*ptr,'\0',size);
46 return *ptr;
47 }
48
49 /****************************************************************************
50 Send the required number of replies back.
51 We assume all fields other than the data fields are
52 set correctly for the type of call.
53 HACK ! Always assumes smb_setup field is zero.
54 ****************************************************************************/
55
56 static void send_nt_replies(connection_struct *conn,
57 struct smb_request *req, NTSTATUS nt_error,
58 char *params, int paramsize,
59 char *pdata, int datasize)
60 {
61 int data_to_send = datasize;
62 int params_to_send = paramsize;
63 int useable_space;
64 char *pp = params;
65 char *pd = pdata;
66 int params_sent_thistime, data_sent_thistime, total_sent_thistime;
67 int alignment_offset = 1;
68 int data_alignment_offset = 0;
69 struct smbd_server_connection *sconn = req->sconn;
70 int max_send = sconn->smb1.sessions.max_send;
71
72 /*
73 * If there genuinely are no parameters or data to send just send
74 * the empty packet.
75 */
76
77 if(params_to_send == 0 && data_to_send == 0) {
78 reply_outbuf(req, 18, 0);
79 if (NT_STATUS_V(nt_error)) {
80 error_packet_set((char *)req->outbuf,
81 0, 0, nt_error,
82 __LINE__,__FILE__);
83 }
84 show_msg((char *)req->outbuf);
85 if (!srv_send_smb(sconn,
86 (char *)req->outbuf,
87 true, req->seqnum+1,
88 IS_CONN_ENCRYPTED(conn),
89 &req->pcd)) {
90 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
91 }
92 TALLOC_FREE(req->outbuf);
93 return;
94 }
95
96 /*
97 * When sending params and data ensure that both are nicely aligned.
98 * Only do this alignment when there is also data to send - else
99 * can cause NT redirector problems.
100 */
101
102 if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
103 data_alignment_offset = 4 - (params_to_send % 4);
104 }
105
106 /*
107 * Space is bufsize minus Netbios over TCP header minus SMB header.
108 * The alignment_offset is to align the param bytes on a four byte
109 * boundary (2 bytes for data len, one byte pad).
110 * NT needs this to work correctly.
111 */
112
113 useable_space = max_send - (smb_size
114 + 2 * 18 /* wct */
115 + alignment_offset
116 + data_alignment_offset);
117
118 if (useable_space < 0) {
119 char *msg = talloc_asprintf(
120 talloc_tos(),
121 "send_nt_replies failed sanity useable_space = %d!!!",
122 useable_space);
123 DEBUG(0, ("%s\n", msg));
124 exit_server_cleanly(msg);
125 }
126
127 while (params_to_send || data_to_send) {
128
129 /*
130 * Calculate whether we will totally or partially fill this packet.
131 */
132
133 total_sent_thistime = params_to_send + data_to_send;
134
135 /*
136 * We can never send more than useable_space.
137 */
138
139 total_sent_thistime = MIN(total_sent_thistime, useable_space);
140
141 reply_outbuf(req, 18,
142 total_sent_thistime + alignment_offset
143 + data_alignment_offset);
144
145 /*
146 * Set total params and data to be sent.
147 */
148
149 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
150 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
151
152 /*
153 * Calculate how many parameters and data we can fit into
154 * this packet. Parameters get precedence.
155 */
156
157 params_sent_thistime = MIN(params_to_send,useable_space);
158 data_sent_thistime = useable_space - params_sent_thistime;
159 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
160
161 SIVAL(req->outbuf, smb_ntr_ParameterCount,
162 params_sent_thistime);
163
164 if(params_sent_thistime == 0) {
165 SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
166 SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
167 } else {
168 /*
169 * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
170 * parameter bytes, however the first 4 bytes of outbuf are
171 * the Netbios over TCP header. Thus use smb_base() to subtract
172 * them from the calculation.
173 */
174
175 SIVAL(req->outbuf,smb_ntr_ParameterOffset,
176 ((smb_buf(req->outbuf)+alignment_offset)
177 - smb_base(req->outbuf)));
178 /*
179 * Absolute displacement of param bytes sent in this packet.
180 */
181
182 SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
183 pp - params);
184 }
185
186 /*
187 * Deal with the data portion.
188 */
189
190 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
191
192 if(data_sent_thistime == 0) {
193 SIVAL(req->outbuf,smb_ntr_DataOffset,0);
194 SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
195 } else {
196 /*
197 * The offset of the data bytes is the offset of the
198 * parameter bytes plus the number of parameters being sent this time.
199 */
200
201 SIVAL(req->outbuf, smb_ntr_DataOffset,
202 ((smb_buf(req->outbuf)+alignment_offset) -
203 smb_base(req->outbuf))
204 + params_sent_thistime + data_alignment_offset);
205 SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
206 }
207
208 /*
209 * Copy the param bytes into the packet.
210 */
211
212 if(params_sent_thistime) {
213 if (alignment_offset != 0) {
214 memset(smb_buf(req->outbuf), 0,
215 alignment_offset);
216 }
217 memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
218 params_sent_thistime);
219 }
220
221 /*
222 * Copy in the data bytes
223 */
224
225 if(data_sent_thistime) {
226 if (data_alignment_offset != 0) {
227 memset((smb_buf(req->outbuf)+alignment_offset+
228 params_sent_thistime), 0,
229 data_alignment_offset);
230 }
231 memcpy(smb_buf(req->outbuf)+alignment_offset
232 +params_sent_thistime+data_alignment_offset,
233 pd,data_sent_thistime);
234 }
235
236 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
237 params_sent_thistime, data_sent_thistime, useable_space));
238 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
239 params_to_send, data_to_send, paramsize, datasize));
240
241 if (NT_STATUS_V(nt_error)) {
242 error_packet_set((char *)req->outbuf,
243 0, 0, nt_error,
244 __LINE__,__FILE__);
245 }
246
247 /* Send the packet */
248 show_msg((char *)req->outbuf);
249 if (!srv_send_smb(sconn,
250 (char *)req->outbuf,
251 true, req->seqnum+1,
252 IS_CONN_ENCRYPTED(conn),
253 &req->pcd)) {
254 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
255 }
256
257 TALLOC_FREE(req->outbuf);
258
259 pp += params_sent_thistime;
260 pd += data_sent_thistime;
261
262 params_to_send -= params_sent_thistime;
263 data_to_send -= data_sent_thistime;
264
265 /*
266 * Sanity check
267 */
268
269 if(params_to_send < 0 || data_to_send < 0) {
270 DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
271 params_to_send, data_to_send));
272 exit_server_cleanly("send_nt_replies: internal error");
273 }
274 }
275 }
276
277 /****************************************************************************
278 Reply to an NT create and X call on a pipe
279 ****************************************************************************/
280
281 static void nt_open_pipe(char *fname, connection_struct *conn,
282 struct smb_request *req, uint16_t *ppnum)
283 {
284 files_struct *fsp;
285 NTSTATUS status;
286
287 DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
288
289 /* Strip \\ off the name if present. */
290 while (fname[0] == '\\') {
291 fname++;
292 }
293
294 status = open_np_file(req, fname, &fsp);
295 if (!NT_STATUS_IS_OK(status)) {
296 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
297 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
298 ERRDOS, ERRbadpipe);
299 return;
300 }
301 reply_nterror(req, status);
302 return;
303 }
304
305 *ppnum = fsp->fnum;
306 return;
307 }
308
309 /****************************************************************************
310 Reply to an NT create and X call for pipes.
311 ****************************************************************************/
312
313 static void do_ntcreate_pipe_open(connection_struct *conn,
314 struct smb_request *req)
315 {
316 char *fname = NULL;
317 uint16_t pnum = FNUM_FIELD_INVALID;
318 char *p = NULL;
319 uint32 flags = IVAL(req->vwv+3, 1);
320 TALLOC_CTX *ctx = talloc_tos();
321
322 srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
323
324 if (!fname) {
325 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
326 ERRDOS, ERRbadpipe);
327 return;
328 }
329 nt_open_pipe(fname, conn, req, &pnum);
330
331 if (req->outbuf) {
332 /* error reply */
333 return;
334 }
335
336 /*
337 * Deal with pipe return.
338 */
339
340 if (flags & EXTENDED_RESPONSE_REQUIRED) {
341 /* This is very strange. We
342 * return 50 words, but only set
343 * the wcnt to 42 ? It's definitely
344 * what happens on the wire....
345 */
346 reply_outbuf(req, 50, 0);
347 SCVAL(req->outbuf,smb_wct,42);
348 } else {
349 reply_outbuf(req, 34, 0);
350 }
351
352 SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
353 SSVAL(req->outbuf, smb_vwv1, 0); /* no andx offset */
354
355 p = (char *)req->outbuf + smb_vwv2;
356 p++;
357 SSVAL(p,0,pnum);
358 p += 2;
359 SIVAL(p,0,FILE_WAS_OPENED);
360 p += 4;
361 p += 32;
362 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
363 p += 20;
364 /* File type. */
365 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
366 /* Device state. */
367 SSVAL(p,2, 0x5FF); /* ? */
368 p += 4;
369
370 if (flags & EXTENDED_RESPONSE_REQUIRED) {
371 p += 25;
372 SIVAL(p,0,FILE_GENERIC_ALL);
373 /*
374 * For pipes W2K3 seems to return
375 * 0x12019B next.
376 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
377 */
378 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
379 }
380
381 DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
382 }
383
384 struct case_semantics_state {
385 connection_struct *conn;
386 bool case_sensitive;
387 bool case_preserve;
388 bool short_case_preserve;
389 };
390
391 /****************************************************************************
392 Restore case semantics.
393 ****************************************************************************/
394
395 static int restore_case_semantics(struct case_semantics_state *state)
396 {
397 state->conn->case_sensitive = state->case_sensitive;
398 state->conn->case_preserve = state->case_preserve;
399 state->conn->short_case_preserve = state->short_case_preserve;
400 return 0;
401 }
402
403 /****************************************************************************
404 Save case semantics.
405 ****************************************************************************/
406
407 static struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx,
408 connection_struct *conn)
409 {
410 struct case_semantics_state *result;
411
412 if (!(result = talloc(mem_ctx, struct case_semantics_state))) {
413 return NULL;
414 }
415
416 result->conn = conn;
417 result->case_sensitive = conn->case_sensitive;
418 result->case_preserve = conn->case_preserve;
419 result->short_case_preserve = conn->short_case_preserve;
420
421 /* Set to POSIX. */
422 conn->case_sensitive = True;
423 conn->case_preserve = True;
424 conn->short_case_preserve = True;
425
426 talloc_set_destructor(result, restore_case_semantics);
427
428 return result;
429 }
430
431 /****************************************************************************
432 Reply to an NT create and X call.
433 ****************************************************************************/
434
435 void reply_ntcreate_and_X(struct smb_request *req)
436 {
437 connection_struct *conn = req->conn;
438 struct smb_filename *smb_fname = NULL;
439 char *fname = NULL;
440 uint32 flags;
441 uint32 access_mask;
442 uint32 file_attributes;
443 uint32 share_access;
444 uint32 create_disposition;
445 uint32 create_options;
446 uint16 root_dir_fid;
447 uint64_t allocation_size;
448 /* Breakout the oplock request bits so we can set the
449 reply bits separately. */
450 uint32 fattr=0;
451 off_t file_len = 0;
452 int info = 0;
453 files_struct *fsp = NULL;
454 char *p = NULL;
455 struct timespec create_timespec;
456 struct timespec c_timespec;
457 struct timespec a_timespec;
458 struct timespec m_timespec;
459 struct timespec write_time_ts;
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 0,
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 /* Deal with other possible opens having a modified
659 write time. JRA. */
660 ZERO_STRUCT(write_time_ts);
661 get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
662 if (!null_timespec(write_time_ts)) {
663 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
664 }
665
666 /* Create time. */
667 create_timespec = get_create_timespec(conn, fsp, smb_fname);
668 a_timespec = smb_fname->st.st_ex_atime;
669 m_timespec = smb_fname->st.st_ex_mtime;
670 c_timespec = get_change_timespec(conn, fsp, smb_fname);
671
672 if (lp_dos_filetime_resolution(SNUM(conn))) {
673 dos_filetime_timespec(&create_timespec);
674 dos_filetime_timespec(&a_timespec);
675 dos_filetime_timespec(&m_timespec);
676 dos_filetime_timespec(&c_timespec);
677 }
678
679 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
680 p += 8;
681 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
682 p += 8;
683 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
684 p += 8;
685 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
686 p += 8;
687 SIVAL(p,0,fattr); /* File Attributes. */
688 p += 4;
689 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
690 p += 8;
691 SOFF_T(p,0,file_len);
692 p += 8;
693 if (flags & EXTENDED_RESPONSE_REQUIRED) {
694 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
695 size_t num_names = 0;
696 unsigned int num_streams = 0;
697 struct stream_struct *streams = NULL;
698
699 /* Do we have any EA's ? */
700 status = get_ea_names_from_file(ctx, conn, fsp,
701 smb_fname->base_name, NULL, &num_names);
702 if (NT_STATUS_IS_OK(status) && num_names) {
703 file_status &= ~NO_EAS;
704 }
705 status = vfs_streaminfo(conn, NULL, smb_fname->base_name, ctx,
706 &num_streams, &streams);
707 /* There is always one stream, ::$DATA. */
708 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
709 file_status &= ~NO_SUBSTREAMS;
710 }
711 TALLOC_FREE(streams);
712 SSVAL(p,2,file_status);
713 }
714 p += 4;
715 SCVAL(p,0,fsp->is_directory ? 1 : 0);
716
717 if (flags & EXTENDED_RESPONSE_REQUIRED) {
718 uint32 perms = 0;
719 p += 25;
720 if (fsp->is_directory ||
721 can_write_to_file(conn, smb_fname)) {
722 perms = FILE_GENERIC_ALL;
723 } else {
724 perms = FILE_GENERIC_READ|FILE_EXECUTE;
725 }
726 SIVAL(p,0,perms);
727 }
728
729 DEBUG(5,("reply_ntcreate_and_X: %s, open name = %s\n",
730 fsp_fnum_dbg(fsp), smb_fname_str_dbg(smb_fname)));
731
732 out:
733 END_PROFILE(SMBntcreateX);
734 return;
735 }
736
737 /****************************************************************************
738 Reply to a NT_TRANSACT_CREATE call to open a pipe.
739 ****************************************************************************/
740
741 static void do_nt_transact_create_pipe(connection_struct *conn,
742 struct smb_request *req,
743 uint16 **ppsetup, uint32 setup_count,
744 char **ppparams, uint32 parameter_count,
745 char **ppdata, uint32 data_count)
746 {
747 char *fname = NULL;
748 char *params = *ppparams;
749 uint16_t pnum = FNUM_FIELD_INVALID;
750 char *p = NULL;
751 NTSTATUS status;
752 size_t param_len;
753 uint32 flags;
754 TALLOC_CTX *ctx = talloc_tos();
755
756 /*
757 * Ensure minimum number of parameters sent.
758 */
759
760 if(parameter_count < 54) {
761 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
762 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
763 return;
764 }
765
766 flags = IVAL(params,0);
767
768 srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
769 parameter_count-53, STR_TERMINATE,
770 &status);
771 if (!NT_STATUS_IS_OK(status)) {
772 reply_nterror(req, status);
773 return;
774 }
775
776 nt_open_pipe(fname, conn, req, &pnum);
777
778 if (req->outbuf) {
779 /* Error return */
780 return;
781 }
782
783 /* Realloc the size of parameters and data we will return */
784 if (flags & EXTENDED_RESPONSE_REQUIRED) {
785 /* Extended response is 32 more byyes. */
786 param_len = 101;
787 } else {
788 param_len = 69;
789 }
790 params = nttrans_realloc(ppparams, param_len);
791 if(params == NULL) {
792 reply_nterror(req, NT_STATUS_NO_MEMORY);
793 return;
794 }
795
796 p = params;
797 SCVAL(p,0,NO_OPLOCK_RETURN);
798
799 p += 2;
800 SSVAL(p,0,pnum);
801 p += 2;
802 SIVAL(p,0,FILE_WAS_OPENED);
803 p += 8;
804
805 p += 32;
806 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
807 p += 20;
808 /* File type. */
809 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
810 /* Device state. */
811 SSVAL(p,2, 0x5FF); /* ? */
812 p += 4;
813
814 if (flags & EXTENDED_RESPONSE_REQUIRED) {
815 p += 25;
816 SIVAL(p,0,FILE_GENERIC_ALL);
817 /*
818 * For pipes W2K3 seems to return
819 * 0x12019B next.
820 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
821 */
822 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
823 }
824
825 DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
826
827 /* Send the required number of replies */
828 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
829
830 return;
831 }
832
833 /****************************************************************************
834 Internal fn to set security descriptors from a data blob.
835 ****************************************************************************/
836
837 NTSTATUS set_sd_blob(files_struct *fsp, uint8_t *data, uint32_t sd_len,
838 uint32_t security_info_sent)
839 {
840 struct security_descriptor *psd = NULL;
841 NTSTATUS status;
842
843 if (sd_len == 0) {
844 return NT_STATUS_INVALID_PARAMETER;
845 }
846
847 if (!CAN_WRITE(fsp->conn)) {
848 return NT_STATUS_ACCESS_DENIED;
849 }
850
851 if (!lp_nt_acl_support(SNUM(fsp->conn))) {
852 return NT_STATUS_OK;
853 }
854
855 status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
856
857 if (!NT_STATUS_IS_OK(status)) {
858 return status;
859 }
860
861 if (psd->owner_sid == NULL) {
862 security_info_sent &= ~SECINFO_OWNER;
863 }
864 if (psd->group_sid == NULL) {
865 security_info_sent &= ~SECINFO_GROUP;
866 }
867
868 /* Ensure we have at least one thing set. */
869 if ((security_info_sent & (SECINFO_OWNER|SECINFO_GROUP|SECINFO_DACL|SECINFO_SACL)) == 0) {
870 if (security_info_sent & SECINFO_LABEL) {
871 /* Only consider SECINFO_LABEL if no other
872 bits are set. Just like W2K3 we don't
873 store this. */
874 return NT_STATUS_OK;
875 }
876 return NT_STATUS_INVALID_PARAMETER;
877 }
878
879 /* Ensure we have the rights to do this. */
880 if (security_info_sent & SECINFO_OWNER) {
881 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
882 return NT_STATUS_ACCESS_DENIED;
883 }
884 }
885
886 if (security_info_sent & SECINFO_GROUP) {
887 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
888 return NT_STATUS_ACCESS_DENIED;
889 }
890 }
891
892 if (security_info_sent & SECINFO_DACL) {
893 if (!(fsp->access_mask & SEC_STD_WRITE_DAC)) {
894 return NT_STATUS_ACCESS_DENIED;
895 }
896 /* Convert all the generic bits. */
897 if (psd->dacl) {
898 security_acl_map_generic(psd->dacl, &file_generic_mapping);
899 }
900 }
901
902 if (security_info_sent & SECINFO_SACL) {
903 if (!(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
904 return NT_STATUS_ACCESS_DENIED;
905 }
906 /* Convert all the generic bits. */
907 if (psd->sacl) {
908 security_acl_map_generic(psd->sacl, &file_generic_mapping);
909 }
910 }
911
912 if (DEBUGLEVEL >= 10) {
913 DEBUG(10,("set_sd_blob for file %s\n", fsp_str_dbg(fsp)));
914 NDR_PRINT_DEBUG(security_descriptor, psd);
915 }
916
917 status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
918
919 TALLOC_FREE(psd);
920
921 return status;
922 }
923
924 /****************************************************************************
925 Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
926 ****************************************************************************/
927
928 struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
929 {
930 struct ea_list *ea_list_head = NULL;
931 size_t offset = 0;
932
933 if (data_size < 4) {
934 return NULL;
935 }
936
937 while (offset + 4 <= data_size) {
938 size_t next_offset = IVAL(pdata,offset);
939 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
940
941 if (!eal) {
942 return NULL;
943 }
944
945 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
946 if (next_offset == 0) {
947 break;
948 }
949 offset += next_offset;
950 }
951
952 return ea_list_head;
953 }
954
955 /****************************************************************************
956 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
957 ****************************************************************************/
958
959 static void call_nt_transact_create(connection_struct *conn,
960 struct smb_request *req,
961 uint16 **ppsetup, uint32 setup_count,
962 char **ppparams, uint32 parameter_count,
963 char **ppdata, uint32 data_count,
964 uint32 max_data_count)
965 {
966 struct smb_filename *smb_fname = NULL;
967 char *fname = NULL;
968 char *params = *ppparams;
969 char *data = *ppdata;
970 /* Breakout the oplock request bits so we can set the reply bits separately. */
971 uint32 fattr=0;
972 off_t file_len = 0;
973 int info = 0;
974 files_struct *fsp = NULL;
975 char *p = NULL;
976 uint32 flags;
977 uint32 access_mask;
978 uint32 file_attributes;
979 uint32 share_access;
980 uint32 create_disposition;
981 uint32 create_options;
982 uint32 sd_len;
983 struct security_descriptor *sd = NULL;
984 uint32 ea_len;
985 uint16 root_dir_fid;
986 struct timespec create_timespec;
987 struct timespec c_timespec;
988 struct timespec a_timespec;
989 struct timespec m_timespec;
990 struct timespec write_time_ts;
991 struct ea_list *ea_list = NULL;
992 NTSTATUS status;
993 size_t param_len;
994 uint64_t allocation_size;
995 int oplock_request;
996 uint8_t oplock_granted;
997 struct case_semantics_state *case_state = NULL;
998 TALLOC_CTX *ctx = talloc_tos();
999
1000 DEBUG(5,("call_nt_transact_create\n"));
1001
1002 /*
1003 * If it's an IPC, use the pipe handler.
1004 */
1005
1006 if (IS_IPC(conn)) {
1007 if (lp_nt_pipe_support()) {
1008 do_nt_transact_create_pipe(
1009 conn, req,
1010 ppsetup, setup_count,
1011 ppparams, parameter_count,
1012 ppdata, data_count);
1013 goto out;
1014 }
1015 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1016 goto out;
1017 }
1018
1019 /*
1020 * Ensure minimum number of parameters sent.
1021 */
1022
1023 if(parameter_count < 54) {
1024 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1025 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1026 goto out;
1027 }
1028
1029 flags = IVAL(params,0);
1030 access_mask = IVAL(params,8);
1031 file_attributes = IVAL(params,20);
1032 share_access = IVAL(params,24);
1033 create_disposition = IVAL(params,28);
1034 create_options = IVAL(params,32);
1035 sd_len = IVAL(params,36);
1036 ea_len = IVAL(params,40);
1037 root_dir_fid = (uint16)IVAL(params,4);
1038 allocation_size = BVAL(params,12);
1039
1040 /*
1041 * we need to remove ignored bits when they come directly from the client
1042 * because we reuse some of them for internal stuff
1043 */
1044 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
1045
1046 /* Ensure the data_len is correct for the sd and ea values given. */
1047 if ((ea_len + sd_len > data_count)
1048 || (ea_len > data_count) || (sd_len > data_count)
1049 || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
1050 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
1051 "%u, data_count = %u\n", (unsigned int)ea_len,
1052 (unsigned int)sd_len, (unsigned int)data_count));
1053 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1054 goto out;
1055 }
1056
1057 if (sd_len) {
1058 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
1059 sd_len));
1060
1061 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
1062 &sd);
1063 if (!NT_STATUS_IS_OK(status)) {
1064 DEBUG(10, ("call_nt_transact_create: "
1065 "unmarshall_sec_desc failed: %s\n",
1066 nt_errstr(status)));
1067 reply_nterror(req, status);
1068 goto out;
1069 }
1070 }
1071
1072 if (ea_len) {
1073 if (!lp_ea_support(SNUM(conn))) {
1074 DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
1075 "EA's not supported.\n",
1076 (unsigned int)ea_len));
1077 reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
1078 goto out;
1079 }
1080
1081 if (ea_len < 10) {
1082 DEBUG(10,("call_nt_transact_create - ea_len = %u - "
1083 "too small (should be more than 10)\n",
1084 (unsigned int)ea_len ));
1085 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1086 goto out;
1087 }
1088
1089 /* We have already checked that ea_len <= data_count here. */
1090 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
1091 ea_len);
1092 if (ea_list == NULL) {
1093 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1094 goto out;
1095 }
1096 }
1097
1098 srvstr_get_path(ctx, params, req->flags2, &fname,
1099 params+53, parameter_count-53,
1100 STR_TERMINATE, &status);
1101 if (!NT_STATUS_IS_OK(status)) {
1102 reply_nterror(req, status);
1103 goto out;
1104 }
1105
1106 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
1107 case_state = set_posix_case_semantics(ctx, conn);
1108 if (!case_state) {
1109 reply_nterror(req, NT_STATUS_NO_MEMORY);
1110 goto out;
1111 }
1112 }
1113
1114 status = filename_convert(ctx,
1115 conn,
1116 req->flags2 & FLAGS2_DFS_PATHNAMES,
1117 fname,
1118 0,
1119 NULL,
1120 &smb_fname);
1121
1122 TALLOC_FREE(case_state);
1123
1124 if (!NT_STATUS_IS_OK(status)) {
1125 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1126 reply_botherror(req,
1127 NT_STATUS_PATH_NOT_COVERED,
1128 ERRSRV, ERRbadpath);
1129 goto out;
1130 }
1131 reply_nterror(req, status);
1132 goto out;
1133 }
1134
1135 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1136 if (oplock_request) {
1137 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1138 ? BATCH_OPLOCK : 0;
1139 }
1140
1141 /*
1142 * Bug #6898 - clients using Windows opens should
1143 * never be able to set this attribute into the
1144 * VFS.
1145 */
1146 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
1147
1148 status = SMB_VFS_CREATE_FILE(
1149 conn, /* conn */
1150 req, /* req */
1151 root_dir_fid, /* root_dir_fid */
1152 smb_fname, /* fname */
1153 access_mask, /* access_mask */
1154 share_access, /* share_access */
1155 create_disposition, /* create_disposition*/
1156 create_options, /* create_options */
1157 file_attributes, /* file_attributes */
1158 oplock_request, /* oplock_request */
1159 allocation_size, /* allocation_size */
1160 0, /* private_flags */
1161 sd, /* sd */
1162 ea_list, /* ea_list */
1163 &fsp, /* result */
1164 &info); /* pinfo */
1165
1166 if(!NT_STATUS_IS_OK(status)) {
1167 if (open_was_deferred(req->sconn, req->mid)) {
1168 /* We have re-scheduled this call, no error. */
1169 return;
1170 }
1171 reply_openerror(req, status);
1172 goto out;
1173 }
1174
1175 /* Ensure we're pointing at the correct stat struct. */
1176 TALLOC_FREE(smb_fname);
1177 smb_fname = fsp->fsp_name;
1178
1179 /*
1180 * If the caller set the extended oplock request bit
1181 * and we granted one (by whatever means) - set the
1182 * correct bit for extended oplock reply.
1183 */
1184
1185 if (oplock_request &&
1186 (lp_fake_oplocks(SNUM(conn))
1187 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1188
1189 /*
1190 * Exclusive oplock granted
1191 */
1192
1193 if (flags & REQUEST_BATCH_OPLOCK) {
1194 oplock_granted = BATCH_OPLOCK_RETURN;
1195 } else {
1196 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1197 }
1198 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1199 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1200 } else {
1201 oplock_granted = NO_OPLOCK_RETURN;
1202 }
1203
1204 file_len = smb_fname->st.st_ex_size;
1205
1206 /* Realloc the size of parameters and data we will return */
1207 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1208 /* Extended response is 32 more byyes. */
1209 param_len = 101;
1210 } else {
1211 param_len = 69;
1212 }
1213 params = nttrans_realloc(ppparams, param_len);
1214 if(params == NULL) {
1215 reply_nterror(req, NT_STATUS_NO_MEMORY);
1216 goto out;
1217 }
1218
1219 p = params;
1220 SCVAL(p, 0, oplock_granted);
1221
1222 p += 2;
1223 SSVAL(p,0,fsp->fnum);
1224 p += 2;
1225 if ((create_disposition == FILE_SUPERSEDE)
1226 && (info == FILE_WAS_OVERWRITTEN)) {
1227 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1228 } else {
1229 SIVAL(p,0,info);
1230 }
1231 p += 8;
1232
1233 fattr = dos_mode(conn, smb_fname);
1234 if (fattr == 0) {
1235 fattr = FILE_ATTRIBUTE_NORMAL;
1236 }
1237
1238 /* Deal with other possible opens having a modified
1239 write time. JRA. */
1240 ZERO_STRUCT(write_time_ts);
1241 get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
1242 if (!null_timespec(write_time_ts)) {
1243 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
1244 }
1245
1246 /* Create time. */
1247 create_timespec = get_create_timespec(conn, fsp, smb_fname);
1248 a_timespec = smb_fname->st.st_ex_atime;
1249 m_timespec = smb_fname->st.st_ex_mtime;
1250 c_timespec = get_change_timespec(conn, fsp, smb_fname);
1251
1252 if (lp_dos_filetime_resolution(SNUM(conn))) {
1253 dos_filetime_timespec(&create_timespec);
1254 dos_filetime_timespec(&a_timespec);
1255 dos_filetime_timespec(&m_timespec);
1256 dos_filetime_timespec(&c_timespec);
1257 }
1258
1259 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
1260 p += 8;
1261 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
1262 p += 8;
1263 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
1264 p += 8;
1265 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
1266 p += 8;
1267 SIVAL(p,0,fattr); /* File Attributes. */
1268 p += 4;
1269 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1270 p += 8;
1271 SOFF_T(p,0,file_len);
1272 p += 8;
1273 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1274 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
1275 size_t num_names = 0;
1276 unsigned int num_streams = 0;
1277 struct stream_struct *streams = NULL;
1278
1279 /* Do we have any EA's ? */
1280 status = get_ea_names_from_file(ctx, conn, fsp,
1281 smb_fname->base_name, NULL, &num_names);
1282 if (NT_STATUS_IS_OK(status) && num_names) {
1283 file_status &= ~NO_EAS;
1284 }
1285 status = vfs_streaminfo(conn, NULL, smb_fname->base_name, ctx,
1286 &num_streams, &streams);
1287 /* There is always one stream, ::$DATA. */
1288 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
1289 file_status &= ~NO_SUBSTREAMS;
1290 }
1291 TALLOC_FREE(streams);
1292 SSVAL(p,2,file_status);
1293 }
1294 p += 4;
1295 SCVAL(p,0,fsp->is_directory ? 1 : 0);
1296
1297 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1298 uint32 perms = 0;
1299 p += 25;
1300 if (fsp->is_directory ||
1301 can_write_to_file(conn, smb_fname)) {
1302 perms = FILE_GENERIC_ALL;
1303 } else {
1304 perms = FILE_GENERIC_READ|FILE_EXECUTE;
1305 }
1306 SIVAL(p,0,perms);
1307 }
1308
1309 DEBUG(5,("call_nt_transact_create: open name = %s\n",
1310 smb_fname_str_dbg(smb_fname)));
1311
1312 /* Send the required number of replies */
1313 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1314 out:
1315 return;
1316 }
1317
1318 /****************************************************************************
1319 Reply to a NT CANCEL request.
1320 conn POINTER CAN BE NULL HERE !
1321 ****************************************************************************/
1322
1323 void reply_ntcancel(struct smb_request *req)
1324 {
1325 /*
1326 * Go through and cancel any pending change notifies.
1327 */
1328
1329 START_PROFILE(SMBntcancel);
1330 srv_cancel_sign_response(req->sconn);
1331 remove_pending_change_notify_requests_by_mid(req->sconn, req->mid);
1332 remove_pending_lock_requests_by_mid_smb1(req->sconn, req->mid);
1333
1334 DEBUG(3,("reply_ntcancel: cancel called on mid = %llu.\n",
1335 (unsigned long long)req->mid));
1336
1337 END_PROFILE(SMBntcancel);
1338 return;
1339 }
1340
1341 /****************************************************************************
1342 Copy a file.
1343 ****************************************************************************/
1344
1345 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1346 connection_struct *conn,
1347 struct smb_request *req,
1348 struct smb_filename *smb_fname_src,
1349 struct smb_filename *smb_fname_dst,
1350 uint32 attrs)
1351 {
1352 files_struct *fsp1,*fsp2;
1353 uint32 fattr;
1354 int info;
1355 off_t ret=-1;
1356 NTSTATUS status = NT_STATUS_OK;
1357 char *parent;
1358
1359 if (!CAN_WRITE(conn)) {
1360 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1361 goto out;
1362 }
1363
1364 /* Source must already exist. */
1365 if (!VALID_STAT(smb_fname_src->st)) {
1366 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1367 goto out;
1368 }
1369
1370 /* Ensure attributes match. */
1371 fattr = dos_mode(conn, smb_fname_src);
1372 if ((fattr & ~attrs) & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) {
1373 status = NT_STATUS_NO_SUCH_FILE;
1374 goto out;
1375 }
1376
1377 /* Disallow if dst file already exists. */
1378 if (VALID_STAT(smb_fname_dst->st)) {
1379 status = NT_STATUS_OBJECT_NAME_COLLISION;
1380 goto out;
1381 }
1382
1383 /* No links from a directory. */
1384 if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1385 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1386 goto out;
1387 }
1388
1389 DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1390 smb_fname_str_dbg(smb_fname_src),
1391 smb_fname_str_dbg(smb_fname_dst)));
1392
1393 status = SMB_VFS_CREATE_FILE(
1394 conn, /* conn */
1395 req, /* req */
1396 0, /* root_dir_fid */
1397 smb_fname_src, /* fname */
1398 FILE_READ_DATA|FILE_READ_ATTRIBUTES|
1399 FILE_READ_EA, /* access_mask */
1400 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1401 FILE_SHARE_DELETE),
1402 FILE_OPEN, /* create_disposition*/
1403 0, /* create_options */
1404 FILE_ATTRIBUTE_NORMAL, /* file_attributes */
1405 NO_OPLOCK, /* oplock_request */
1406 0, /* allocation_size */
1407 0, /* private_flags */
1408 NULL, /* sd */
1409 NULL, /* ea_list */
1410 &fsp1, /* result */
1411 &info); /* pinfo */
1412
1413 if (!NT_STATUS_IS_OK(status)) {
1414 goto out;
1415 }
1416
1417 status = SMB_VFS_CREATE_FILE(
1418 conn, /* conn */
1419 req, /* req */
1420 0, /* root_dir_fid */
1421 smb_fname_dst, /* fname */
1422 FILE_WRITE_DATA|FILE_WRITE_ATTRIBUTES|
1423 FILE_WRITE_EA, /* access_mask */
1424 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1425 FILE_SHARE_DELETE),
1426 FILE_CREATE, /* create_disposition*/
1427 0, /* create_options */
1428 fattr, /* file_attributes */
1429 NO_OPLOCK, /* oplock_request */
1430 0, /* allocation_size */
1431 0, /* private_flags */
1432 NULL, /* sd */
1433 NULL, /* ea_list */
1434 &fsp2, /* result */
1435 &info); /* pinfo */
1436
1437 if (!NT_STATUS_IS_OK(status)) {
1438 close_file(NULL, fsp1, ERROR_CLOSE);
1439 goto out;
1440 }
1441
1442 if (smb_fname_src->st.st_ex_size) {
1443 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1444 }
1445
1446 /*
1447 * As we are opening fsp1 read-only we only expect
1448 * an error on close on fsp2 if we are out of space.
1449 * Thus we don't look at the error return from the
1450 * close of fsp1.
1451 */
1452 close_file(NULL, fsp1, NORMAL_CLOSE);
1453
1454 /* Ensure the modtime is set correctly on the destination file. */
1455 set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1456
1457 status = close_file(NULL, fsp2, NORMAL_CLOSE);
1458
1459 /* Grrr. We have to do this as open_file_ntcreate adds FILE_ATTRIBUTE_ARCHIVE when it
1460 creates the file. This isn't the correct thing to do in the copy
1461 case. JRA */
1462 if (!parent_dirname(talloc_tos(), smb_fname_dst->base_name, &parent,
1463 NULL)) {
1464 status = NT_STATUS_NO_MEMORY;
1465 goto out;
1466 }
1467 file_set_dosmode(conn, smb_fname_dst, fattr, parent, false);
1468 TALLOC_FREE(parent);
1469
1470 if (ret < (off_t)smb_fname_src->st.st_ex_size) {
1471 status = NT_STATUS_DISK_FULL;
1472 goto out;
1473 }
1474 out:
1475 if (!NT_STATUS_IS_OK(status)) {
1476 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1477 nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1478 smb_fname_str_dbg(smb_fname_dst)));
1479 }
1480
1481 return status;
1482 }
1483
1484 /****************************************************************************
1485 Reply to a NT rename request.
1486 ****************************************************************************/
1487
1488 void reply_ntrename(struct smb_request *req)
1489 {
1490 connection_struct *conn = req->conn;
1491 struct smb_filename *smb_fname_old = NULL;
1492 struct smb_filename *smb_fname_new = NULL;
1493 char *oldname = NULL;
1494 char *newname = NULL;
1495 const char *p;
1496 NTSTATUS status;
1497 bool src_has_wcard = False;
1498 bool dest_has_wcard = False;
1499 uint32 attrs;
1500 uint32_t ucf_flags_src = 0;
1501 uint32_t ucf_flags_dst = 0;
1502 uint16 rename_type;
1503 TALLOC_CTX *ctx = talloc_tos();
1504 bool stream_rename = false;
1505
1506 START_PROFILE(SMBntrename);
1507
1508 if (req->wct < 4) {
1509 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1510 goto out;
1511 }
1512
1513 attrs = SVAL(req->vwv+0, 0);
1514 rename_type = SVAL(req->vwv+1, 0);
1515
1516 p = (const char *)req->buf + 1;
1517 p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1518 &status, &src_has_wcard);
1519 if (!NT_STATUS_IS_OK(status)) {
1520 reply_nterror(req, status);
1521 goto out;
1522 }
1523
1524 if (ms_has_wild(oldname)) {
1525 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1526 goto out;
1527 }
1528
1529 p++;
1530 p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1531 &status, &dest_has_wcard);
1532 if (!NT_STATUS_IS_OK(status)) {
1533 reply_nterror(req, status);
1534 goto out;
1535 }
1536
1537 if (!lp_posix_pathnames()) {
1538 /* The newname must begin with a ':' if the
1539 oldname contains a ':'. */
1540 if (strchr_m(oldname, ':')) {
1541 if (newname[0] != ':') {
1542 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1543 goto out;
1544 }
1545 stream_rename = true;
1546 }
1547 }
1548
1549 /*
1550 * If this is a rename operation, allow wildcards and save the
1551 * destination's last component.
1552 */
1553 if (rename_type == RENAME_FLAG_RENAME) {
1554 ucf_flags_src = UCF_COND_ALLOW_WCARD_LCOMP;
1555 ucf_flags_dst = UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1556 }
1557
1558 /* rename_internals() calls unix_convert(), so don't call it here. */
1559 status = filename_convert(ctx, conn,
1560 req->flags2 & FLAGS2_DFS_PATHNAMES,
1561 oldname,
1562 ucf_flags_src,
1563 NULL,
1564 &smb_fname_old);
1565 if (!NT_STATUS_IS_OK(status)) {
1566 if (NT_STATUS_EQUAL(status,
1567 NT_STATUS_PATH_NOT_COVERED)) {
1568 reply_botherror(req,
1569 NT_STATUS_PATH_NOT_COVERED,
1570 ERRSRV, ERRbadpath);
1571 goto out;
1572 }
1573 reply_nterror(req, status);
1574 goto out;
1575 }
1576
1577 status = filename_convert(ctx, conn,
1578 req->flags2 & FLAGS2_DFS_PATHNAMES,
1579 newname,
1580 ucf_flags_dst,
1581 &dest_has_wcard,
1582 &smb_fname_new);
1583 if (!NT_STATUS_IS_OK(status)) {
1584 if (NT_STATUS_EQUAL(status,
1585 NT_STATUS_PATH_NOT_COVERED)) {
1586 reply_botherror(req,
1587 NT_STATUS_PATH_NOT_COVERED,
1588 ERRSRV, ERRbadpath);
1589 goto out;
1590 }
1591 reply_nterror(req, status);
1592 goto out;
1593 }
1594
1595 if (stream_rename) {
1596 /* smb_fname_new must be the same as smb_fname_old. */
1597 TALLOC_FREE(smb_fname_new->base_name);
1598 smb_fname_new->base_name = talloc_strdup(smb_fname_new,
1599 smb_fname_old->base_name);
1600 if (!smb_fname_new->base_name) {
1601 reply_nterror(req, NT_STATUS_NO_MEMORY);
1602 goto out;
1603 }
1604 }
1605
1606 DEBUG(3,("reply_ntrename: %s -> %s\n",
1607 smb_fname_str_dbg(smb_fname_old),
1608 smb_fname_str_dbg(smb_fname_new)));
1609
1610 switch(rename_type) {
1611 case RENAME_FLAG_RENAME:
1612 status = rename_internals(ctx, conn, req,
1613 smb_fname_old, smb_fname_new,
1614 attrs, False, src_has_wcard,
1615 dest_has_wcard,
1616 DELETE_ACCESS);
1617 break;
1618 case RENAME_FLAG_HARD_LINK:
1619 if (src_has_wcard || dest_has_wcard) {
1620 /* No wildcards. */
1621 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1622 } else {
1623 status = hardlink_internals(ctx, conn,
1624 req,
1625 false,
1626 smb_fname_old,
1627 smb_fname_new);
1628 }
1629 break;
1630 case RENAME_FLAG_COPY:
1631 if (src_has_wcard || dest_has_wcard) {
1632 /* No wildcards. */
1633 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1634 } else {
1635 status = copy_internals(ctx, conn, req,
1636 smb_fname_old,
1637 smb_fname_new,
1638 attrs);
1639 }
1640 break;
1641 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1642 status = NT_STATUS_INVALID_PARAMETER;
1643 break;
1644 default:
1645 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1646 break;
1647 }
1648
1649 if (!NT_STATUS_IS_OK(status)) {
1650 if (open_was_deferred(req->sconn, req->mid)) {
1651 /* We have re-scheduled this call. */
1652 goto out;
1653 }
1654
1655 reply_nterror(req, status);
1656 goto out;
1657 }
1658
1659 reply_outbuf(req, 0, 0);
1660 out:
1661 END_PROFILE(SMBntrename);
1662 return;
1663 }
1664
1665 /****************************************************************************
1666 Reply to a notify change - queue the request and
1667 don't allow a directory to be opened.
1668 ****************************************************************************/
1669
1670 static void smbd_smb1_notify_reply(struct smb_request *req,
1671 NTSTATUS error_code,
1672 uint8_t *buf, size_t len)
1673 {
1674 send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1675 }
1676
1677 static void call_nt_transact_notify_change(connection_struct *conn,
1678 struct smb_request *req,
1679 uint16 **ppsetup,
1680 uint32 setup_count,
1681 char **ppparams,
1682 uint32 parameter_count,
1683 char **ppdata, uint32 data_count,
1684 uint32 max_data_count,
1685 uint32 max_param_count)
1686 {
1687 uint16 *setup = *ppsetup;
1688 files_struct *fsp;
1689 uint32 filter;
1690 NTSTATUS status;
1691 bool recursive;
1692
1693 if(setup_count < 6) {
1694 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1695 return;
1696 }
1697
1698 fsp = file_fsp(req, SVAL(setup,4));
1699 filter = IVAL(setup, 0);
1700 recursive = (SVAL(setup, 6) != 0) ? True : False;
1701
1702 DEBUG(3,("call_nt_transact_notify_change\n"));
1703
1704 if(!fsp) {
1705 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1706 return;
1707 }
1708
1709 {
1710 char *filter_string;
1711
1712 if (!(filter_string = notify_filter_string(NULL, filter))) {
1713 reply_nterror(req,NT_STATUS_NO_MEMORY);
1714 return;
1715 }
1716
1717 DEBUG(3,("call_nt_transact_notify_change: notify change "
1718 "called on %s, filter = %s, recursive = %d\n",
1719 fsp_str_dbg(fsp), filter_string, recursive));
1720
1721 TALLOC_FREE(filter_string);
1722 }
1723
1724 if((!fsp->is_directory) || (conn != fsp->conn)) {
1725 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1726 return;
1727 }
1728
1729 if (fsp->notify == NULL) {
1730
1731 status = change_notify_create(fsp, filter, recursive);
1732
1733 if (!NT_STATUS_IS_OK(status)) {
1734 DEBUG(10, ("change_notify_create returned %s\n",
1735 nt_errstr(status)));
1736 reply_nterror(req, status);
1737 return;
1738 }
1739 }
1740
1741 if (change_notify_fsp_has_changes(fsp)) {
1742
1743 /*
1744 * We've got changes pending, respond immediately
1745 */
1746
1747 /*
1748 * TODO: write a torture test to check the filtering behaviour
1749 * here.
1750 */
1751
1752 change_notify_reply(req,
1753 NT_STATUS_OK,
1754 max_param_count,
1755 fsp->notify,
1756 smbd_smb1_notify_reply);
1757
1758 /*
1759 * change_notify_reply() above has independently sent its
1760 * results
1761 */
1762 return;
1763 }
1764
1765 /*
1766 * No changes pending, queue the request
1767 */
1768
1769 status = change_notify_add_request(req,
1770 max_param_count,
1771 filter,
1772 recursive, fsp,
1773 smbd_smb1_notify_reply);
1774 if (!NT_STATUS_IS_OK(status)) {
1775 reply_nterror(req, status);
1776 }
1777 return;
1778 }
1779
1780 /****************************************************************************
1781 Reply to an NT transact rename command.
1782 ****************************************************************************/
1783
1784 static void call_nt_transact_rename(connection_struct *conn,
1785 struct smb_request *req,
1786 uint16 **ppsetup, uint32 setup_count,
1787 char **ppparams, uint32 parameter_count,
1788 char **ppdata, uint32 data_count,
1789 uint32 max_data_count)
1790 {
1791 char *params = *ppparams;
1792 char *new_name = NULL;
1793 files_struct *fsp = NULL;
1794 bool dest_has_wcard = False;
1795 NTSTATUS status;
1796 TALLOC_CTX *ctx = talloc_tos();
1797
1798 if(parameter_count < 5) {
1799 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1800 return;
1801 }
1802
1803 fsp = file_fsp(req, SVAL(params, 0));
1804 if (!check_fsp(conn, req, fsp)) {
1805 return;
1806 }
1807 srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1808 parameter_count - 4,
1809 STR_TERMINATE, &status, &dest_has_wcard);
1810 if (!NT_STATUS_IS_OK(status)) {
1811 reply_nterror(req, status);
1812 return;
1813 }
1814
1815 /*
1816 * W2K3 ignores this request as the RAW-RENAME test
1817 * demonstrates, so we do.
1818 */
1819 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1820
1821 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1822 fsp_str_dbg(fsp), new_name));
1823
1824 return;
1825 }
1826
1827 /******************************************************************************
1828 Fake up a completely empty SD.
1829 *******************************************************************************/
1830
1831 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, struct security_descriptor **ppsd)
1832 {
1833 size_t sd_size;
1834
1835 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1836 if(!*ppsd) {
1837 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1838 return NT_STATUS_NO_MEMORY;
1839 }
1840
1841 return NT_STATUS_OK;
1842 }
1843
1844 /****************************************************************************
1845 Reply to query a security descriptor.
1846 Callable from SMB2 and SMB2.
1847 If it returns NT_STATUS_BUFFER_TOO_SMALL, pdata_size is initialized with
1848 the required size.
1849 ****************************************************************************/
1850
1851 NTSTATUS smbd_do_query_security_desc(connection_struct *conn,
1852 TALLOC_CTX *mem_ctx,
1853 files_struct *fsp,
1854 uint32_t security_info_wanted,
1855 uint32_t max_data_count,
1856 uint8_t **ppmarshalled_sd,
1857 size_t *psd_size)
1858 {
1859 NTSTATUS status;
1860 struct security_descriptor *psd = NULL;
1861
1862 /*
1863 * Get the permissions to return.
1864 */
1865
1866 if ((security_info_wanted & SECINFO_SACL) &&
1867 !(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
1868 DEBUG(10, ("Access to SACL denied.\n"));
1869 return NT_STATUS_ACCESS_DENIED;
1870 }
1871
1872 if ((security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|SECINFO_GROUP)) &&
1873 !(fsp->access_mask & SEC_STD_READ_CONTROL)) {
1874 DEBUG(10, ("Access to DACL, OWNER, or GROUP denied.\n"));
1875 return NT_STATUS_ACCESS_DENIED;
1876 }
1877
1878 if (security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|
1879 SECINFO_GROUP|SECINFO_SACL)) {
1880 /* Don't return SECINFO_LABEL if anything else was
1881 requested. See bug #8458. */
1882 security_info_wanted &= ~SECINFO_LABEL;
1883 }
1884
1885 if (!lp_nt_acl_support(SNUM(conn))) {
1886 status = get_null_nt_acl(mem_ctx, &psd);
1887 } else if (security_info_wanted & SECINFO_LABEL) {
1888 /* Like W2K3 return a null object. */
1889 status = get_null_nt_acl(mem_ctx, &psd);
1890 } else {
1891 status = SMB_VFS_FGET_NT_ACL(
1892 fsp, security_info_wanted, &psd);
1893 }
1894 if (!NT_STATUS_IS_OK(status)) {
1895 return status;
1896 }
1897
1898 if (!(security_info_wanted & SECINFO_OWNER)) {
1899 psd->owner_sid = NULL;
1900 }
1901 if (!(security_info_wanted & SECINFO_GROUP)) {
1902 psd->group_sid = NULL;
1903 }
1904 if (!(security_info_wanted & SECINFO_DACL)) {
1905 psd->type &= ~SEC_DESC_DACL_PRESENT;
1906 psd->dacl = NULL;
1907 }
1908 if (!(security_info_wanted & SECINFO_SACL)) {
1909 psd->type &= ~SEC_DESC_SACL_PRESENT;
1910 psd->sacl = NULL;
1911 }
1912
1913 /* If the SACL/DACL is NULL, but was requested, we mark that it is
1914 * present in the reply to match Windows behavior */
1915 if (psd->sacl == NULL &&
1916 security_info_wanted & SECINFO_SACL)
1917 psd->type |= SEC_DESC_SACL_PRESENT;
1918 if (psd->dacl == NULL &&
1919 security_info_wanted & SECINFO_DACL)
1920 psd->type |= SEC_DESC_DACL_PRESENT;
1921
1922 if (security_info_wanted & SECINFO_LABEL) {
1923 /* Like W2K3 return a null object. */
1924 psd->owner_sid = NULL;
1925 psd->group_sid = NULL;
1926 psd->dacl = NULL;
1927 psd->sacl = NULL;
1928 psd->type &= ~(SEC_DESC_DACL_PRESENT|SEC_DESC_SACL_PRESENT);
1929 }
1930
1931 *psd_size = ndr_size_security_descriptor(psd, 0);
1932
1933 DEBUG(3,("smbd_do_query_security_desc: sd_size = %lu.\n",
1934 (unsigned long)*psd_size));
1935
1936 if (DEBUGLEVEL >= 10) {
1937 DEBUG(10,("smbd_do_query_security_desc for file %s\n",
1938 fsp_str_dbg(fsp)));
1939 NDR_PRINT_DEBUG(security_descriptor, psd);
1940 }
1941
1942 if (max_data_count < *psd_size) {
1943 TALLOC_FREE(psd);
1944 return NT_STATUS_BUFFER_TOO_SMALL;
1945 }
1946
1947 status = marshall_sec_desc(mem_ctx, psd,
1948 ppmarshalled_sd, psd_size);
1949
1950 if (!NT_STATUS_IS_OK(status)) {
1951 TALLOC_FREE(psd);
1952 return status;
1953 }
1954
1955 TALLOC_FREE(psd);
1956 return NT_STATUS_OK;
1957 }
1958
1959 /****************************************************************************
1960 SMB1 reply to query a security descriptor.
1961 ****************************************************************************/
1962
1963 static void call_nt_transact_query_security_desc(connection_struct *conn,
1964 struct smb_request *req,
1965 uint16 **ppsetup,
1966 uint32 setup_count,
1967 char **ppparams,
1968 uint32 parameter_count,
1969 char **ppdata,
1970 uint32 data_count,
1971 uint32 max_data_count)
1972 {
1973 char *params = *ppparams;
1974 char *data = *ppdata;
1975 size_t sd_size = 0;
1976 uint32 security_info_wanted;
1977 files_struct *fsp = NULL;
1978 NTSTATUS status;
1979 uint8_t *marshalled_sd = NULL;
1980
1981 if(parameter_count < 8) {
1982 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1983 return;
1984 }
1985
1986 fsp = file_fsp(req, SVAL(params,0));
1987 if(!fsp) {
1988 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1989 return;
1990 }
1991
1992 security_info_wanted = IVAL(params,4);
1993
1994 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
1995 "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
1996 (unsigned int)security_info_wanted));
1997
1998 params = nttrans_realloc(ppparams, 4);
1999 if(params == NULL) {
2000 reply_nterror(req, NT_STATUS_NO_MEMORY);
2001 return;
2002 }
2003
2004 /*
2005 * Get the permissions to return.
2006 */
2007
2008 status = smbd_do_query_security_desc(conn,
2009 talloc_tos(),
2010 fsp,
2011 security_info_wanted,
2012 max_data_count,
2013 &marshalled_sd,
2014 &sd_size);
2015
2016 if (NT_STATUS_EQUAL(status, NT_STATUS_BUFFER_TOO_SMALL)) {
2017 SIVAL(params,0,(uint32_t)sd_size);
2018 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2019 params, 4, NULL, 0);
2020 return;
2021 }
2022
2023 if (!NT_STATUS_IS_OK(status)) {
2024 reply_nterror(req, status);
2025 return;
2026 }
2027
2028 SMB_ASSERT(sd_size > 0);
2029
2030 SIVAL(params,0,(uint32_t)sd_size);
2031
2032 if (max_data_count < sd_size) {
2033 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2034 params, 4, NULL, 0);
2035 return;
2036 }
2037
2038 /*
2039 * Allocate the data we will return.
2040 */
2041
2042 data = nttrans_realloc(ppdata, sd_size);
2043 if(data == NULL) {
2044 reply_nterror(req, NT_STATUS_NO_MEMORY);
2045 return;
2046 }
2047
2048 memcpy(data, marshalled_sd, sd_size);
2049
2050 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
2051
2052 return;
2053 }
2054
2055 /****************************************************************************
2056 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
2057 ****************************************************************************/
2058
2059 static void call_nt_transact_set_security_desc(connection_struct *conn,
2060 struct smb_request *req,
2061 uint16 **ppsetup,
2062 uint32 setup_count,
2063 char **ppparams,
2064 uint32 parameter_count,
2065 char **ppdata,
2066 uint32 data_count,
2067 uint32 max_data_count)
2068 {
2069 char *params= *ppparams;
2070 char *data = *ppdata;
2071 files_struct *fsp = NULL;
2072 uint32 security_info_sent = 0;
2073 NTSTATUS status;
2074
2075 if(parameter_count < 8) {
2076 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2077 return;
2078 }
2079
2080 if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
2081 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2082 return;
2083 }
2084
2085 if (!CAN_WRITE(fsp->conn)) {
2086 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2087 return;
2088 }
2089
2090 if(!lp_nt_acl_support(SNUM(conn))) {
2091 goto done;
2092 }
2093
2094 security_info_sent = IVAL(params,4);
2095
2096 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
2097 fsp_str_dbg(fsp), (unsigned int)security_info_sent));
2098
2099 if (data_count == 0) {
2100 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2101 return;
2102 }
2103
2104 status = set_sd_blob(fsp, (uint8 *)data, data_count, security_info_sent);
2105
2106 if (!NT_STATUS_IS_OK(status)) {
2107 reply_nterror(req, status);
2108 return;
2109 }
2110
2111 done:
2112 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2113 return;
2114 }
2115
2116 /****************************************************************************
2117 Reply to NT IOCTL
2118 ****************************************************************************/
2119
2120 static void call_nt_transact_ioctl(connection_struct *conn,
2121 struct smb_request *req,
2122 uint16 **ppsetup, uint32 setup_count,
2123 char **ppparams, uint32 parameter_count,
2124 char **ppdata, uint32 data_count,
2125 uint32 max_data_count)
2126 {
2127 NTSTATUS status;
2128 uint32 function;
2129 uint16 fidnum;
2130 files_struct *fsp;
2131 uint8 isFSctl;
2132 uint8 compfilter;
2133 char *out_data = NULL;
2134 uint32 out_data_len = 0;
2135 char *pdata = *ppdata;
2136 TALLOC_CTX *ctx = talloc_tos();
2137
2138 if (setup_count != 8) {
2139 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
2140 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2141 return;
2142 }
2143
2144 function = IVAL(*ppsetup, 0);
2145 fidnum = SVAL(*ppsetup, 4);
2146 isFSctl = CVAL(*ppsetup, 6);
2147 compfilter = CVAL(*ppsetup, 7);
2148
2149 DEBUG(10, ("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
2150 function, fidnum, isFSctl, compfilter));
2151
2152 fsp=file_fsp(req, fidnum);
2153
2154 /*
2155 * We don't really implement IOCTLs, especially on files.
2156 */
2157 if (!isFSctl) {
2158 DEBUG(10, ("isFSctl: 0x%02X indicates IOCTL, not FSCTL!\n",
2159 isFSctl));
2160 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2161 return;
2162 }
2163
2164 /* Has to be for an open file! */
2165 if (!check_fsp_open(conn, req, fsp)) {
2166 return;
2167 }
2168
2169 SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
2170
2171 /*
2172 * out_data might be allocated by the VFS module, but talloc should be
2173 * used, and should be cleaned up when the request ends.
2174 */
2175 status = SMB_VFS_FSCTL(fsp,
2176 ctx,
2177 function,
2178 req->flags2,
2179 (uint8_t *)pdata,
2180 data_count,
2181 (uint8_t **)&out_data,
2182 max_data_count,
2183 &out_data_len);
2184 if (!NT_STATUS_IS_OK(status)) {
2185 reply_nterror(req, status);
2186 } else {
2187 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, out_data, out_data_len);
2188 }
2189 }
2190
2191
2192 #ifdef HAVE_SYS_QUOTAS
2193 /****************************************************************************
2194 Reply to get user quota
2195 ****************************************************************************/
2196
2197 static void call_nt_transact_get_user_quota(connection_struct *conn,
2198 struct smb_request *req,
2199 uint16 **ppsetup,
2200 uint32 setup_count,
2201 char **ppparams,
2202 uint32 parameter_count,
2203 char **ppdata,
2204 uint32 data_count,
2205 uint32 max_data_count)
2206 {
2207 NTSTATUS nt_status = NT_STATUS_OK;
2208 char *params = *ppparams;
2209 char *pdata = *ppdata;
2210 char *entry;
2211 int data_len=0,param_len=0;
2212 int qt_len=0;
2213 int entry_len = 0;
2214 files_struct *fsp = NULL;
2215 uint16 level = 0;
2216 size_t sid_len;
2217 struct dom_sid sid;
2218 bool start_enum = True;
2219 SMB_NTQUOTA_STRUCT qt;
2220 SMB_NTQUOTA_LIST *tmp_list;
2221 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2222
2223 ZERO_STRUCT(qt);
2224
2225 /* access check */
2226 if (get_current_uid(conn) != 0) {
2227 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2228 "[%s]\n", lp_servicename(talloc_tos(), SNUM(conn)),
2229 conn->session_info->unix_info->unix_name));
2230 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2231 return;
2232 }
2233
2234 /*
2235 * Ensure minimum number of parameters sent.
2236 */
2237
2238 if (parameter_count < 4) {
2239 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2240 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2241 return;
2242 }
2243
2244 /* maybe we can check the quota_fnum */
2245 fsp = file_fsp(req, SVAL(params,0));
2246 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2247 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2248 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2249 return;
2250 }
2251
2252 /* the NULL pointer checking for fsp->fake_file_handle->pd
2253 * is done by CHECK_NTQUOTA_HANDLE_OK()
2254 */
2255 qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2256
2257 level = SVAL(params,2);
2258
2259 /* unknown 12 bytes leading in params */
2260
2261 switch (level) {
2262 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2263 /* seems that we should continue with the enum here --metze */
2264
2265 if (qt_handle->quota_list!=NULL &&
2266 qt_handle->tmp_list==NULL) {
2267
2268 /* free the list */
2269 free_ntquota_list(&(qt_handle->quota_list));
2270
2271 /* Realloc the size of parameters and data we will return */
2272 param_len = 4;
2273 params = nttrans_realloc(ppparams, param_len);
2274 if(params == NULL) {
2275 reply_nterror(req, NT_STATUS_NO_MEMORY);
2276 return;
2277 }
2278
2279 data_len = 0;
2280 SIVAL(params,0,data_len);
2281
2282 break;
2283 }
2284
2285 start_enum = False;
2286
2287 case TRANSACT_GET_USER_QUOTA_LIST_START:
2288
2289 if (qt_handle->quota_list==NULL &&
2290 qt_handle->tmp_list==NULL) {
2291 start_enum = True;
2292 }
2293
2294 if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2295 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2296 return;
2297 }
2298
2299 /* Realloc the size of parameters and data we will return */
2300 param_len = 4;
2301 params = nttrans_realloc(ppparams, param_len);
2302 if(params == NULL) {
2303 reply_nterror(req, NT_STATUS_NO_MEMORY);
2304 return;
2305 }
2306
2307 /* we should not trust the value in max_data_count*/
2308 max_data_count = MIN(max_data_count,2048);
2309
2310 pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2311 if(pdata == NULL) {
2312 reply_nterror(req, NT_STATUS_NO_MEMORY);
2313 return;
2314 }
2315
2316 entry = pdata;
2317
2318 /* set params Size of returned Quota Data 4 bytes*/
2319 /* but set it later when we know it */
2320
2321 /* for each entry push the data */
2322
2323 if (start_enum) {
2324 qt_handle->tmp_list = qt_handle->quota_list;
2325 }
2326
2327 tmp_list = qt_handle->tmp_list;
2328
2329 for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2330 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2331
2332 sid_len = ndr_size_dom_sid(
2333 &tmp_list->quotas->sid, 0);
2334 entry_len = 40 + sid_len;
2335
2336 /* nextoffset entry 4 bytes */
2337 SIVAL(entry,0,entry_len);
2338
2339 /* then the len of the SID 4 bytes */
2340 SIVAL(entry,4,sid_len);
2341
2342 /* unknown data 8 bytes uint64_t */
2343 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2344
2345 /* the used disk space 8 bytes uint64_t */
2346 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2347
2348 /* the soft quotas 8 bytes uint64_t */
2349 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2350
2351 /* the hard quotas 8 bytes uint64_t */
2352 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2353
2354 /* and now the SID */
2355 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2356 }
2357
2358 qt_handle->tmp_list = tmp_list;
2359
2360 /* overwrite the offset of the last entry */
2361 SIVAL(entry-entry_len,0,0);
2362
2363 data_len = 4+qt_len;
2364 /* overwrite the params quota_data_len */
2365 SIVAL(params,0,data_len);
2366
2367 break;
2368
2369 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2370
2371 /* unknown 4 bytes IVAL(pdata,0) */
2372
2373 if (data_count < 8) {
2374 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2375 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2376 return;
2377 }
2378
2379 sid_len = IVAL(pdata,4);
2380 /* Ensure this is less than 1mb. */
2381 if (sid_len > (1024*1024)) {
2382 reply_nterror(req, NT_STATUS_NO_MEMORY);
2383 return;
2384 }
2385
2386 if (data_count < 8+sid_len) {
2387 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2388 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2389 return;
2390 }
2391
2392 data_len = 4+40+sid_len;
2393
2394 if (max_data_count < data_len) {
2395 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2396 max_data_count, data_len));
2397 param_len = 4;
2398 SIVAL(params,0,data_len);
2399 data_len = 0;
2400 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2401 break;
2402 }
2403
2404 if (!sid_parse(pdata+8,sid_len,&sid)) {
2405 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2406 return;
2407 }
2408
2409 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2410 ZERO_STRUCT(qt);
2411 /*
2412 * we have to return zero's in all fields
2413 * instead of returning an error here
2414 * --metze
2415 */
2416 }
2417
2418 /* Realloc the size of parameters and data we will return */
2419 param_len = 4;
2420 params = nttrans_realloc(ppparams, param_len);
2421 if(params == NULL) {
2422 reply_nterror(req, NT_STATUS_NO_MEMORY);
2423 return;
2424 }
2425
2426 pdata = nttrans_realloc(ppdata, data_len);
2427 if(pdata == NULL) {
2428 reply_nterror(req, NT_STATUS_NO_MEMORY);
2429 return;
2430 }
2431
2432 entry = pdata;
2433
2434 /* set params Size of returned Quota Data 4 bytes*/
2435 SIVAL(params,0,data_len);
2436
2437 /* nextoffset entry 4 bytes */
2438 SIVAL(entry,0,0);
2439
2440 /* then the len of the SID 4 bytes */
2441 SIVAL(entry,4,sid_len);
2442
2443 /* unknown data 8 bytes uint64_t */
2444 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2445
2446 /* the used disk space 8 bytes uint64_t */
2447 SBIG_UINT(entry,16,qt.usedspace);
2448
2449 /* the soft quotas 8 bytes uint64_t */
2450 SBIG_UINT(entry,24,qt.softlim);
2451
2452 /* the hard quotas 8 bytes uint64_t */
2453 SBIG_UINT(entry,32,qt.hardlim);
2454
2455 /* and now the SID */
2456 sid_linearize(entry+40, sid_len, &sid);
2457
2458 break;
2459
2460 default:
2461 DEBUG(0, ("do_nt_transact_get_user_quota: %s: unknown "
2462 "level 0x%04hX\n",
2463 fsp_fnum_dbg(fsp), level));
2464 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2465 return;
2466 break;
2467 }
2468
2469 send_nt_replies(conn, req, nt_status, params, param_len,
2470 pdata, data_len);
2471 }
2472
2473 /****************************************************************************
2474 Reply to set user quota
2475 ****************************************************************************/
2476
2477 static void call_nt_transact_set_user_quota(connection_struct *conn,
2478 struct smb_request *req,
2479 uint16 **ppsetup,
2480 uint32 setup_count,
2481 char **ppparams,
2482 uint32 parameter_count,
2483 char **ppdata,
2484 uint32 data_count,
2485 uint32 max_data_count)
2486 {
2487 char *params = *ppparams;
2488 char *pdata = *ppdata;
2489 int data_len=0,param_len=0;
2490 SMB_NTQUOTA_STRUCT qt;
2491 size_t sid_len;
2492 struct dom_sid sid;
2493 files_struct *fsp = NULL;
2494
2495 ZERO_STRUCT(qt);
2496
2497 /* access check */
2498 if (get_current_uid(conn) != 0) {
2499 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2500 "[%s]\n", lp_servicename(talloc_tos(), SNUM(conn)),
2501 conn->session_info->unix_info->unix_name));
2502 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2503 return;
2504 }
2505
2506 /*
2507 * Ensure minimum number of parameters sent.
2508 */
2509
2510 if (parameter_count < 2) {
2511 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2512 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2513 return;
2514 }
2515
2516 /* maybe we can check the quota_fnum */
2517 fsp = file_fsp(req, SVAL(params,0));
2518 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2519 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2520 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2521 return;
2522 }
2523
2524 if (data_count < 40) {
2525 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2526 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2527 return;
2528 }
2529
2530 /* offset to next quota record.
2531 * 4 bytes IVAL(pdata,0)
2532 * unused here...
2533 */
2534
2535 /* sid len */
2536 sid_len = IVAL(pdata,4);
2537
2538 if (data_count < 40+sid_len || (40+sid_len < sid_len)) {
2539 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2540 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2541 return;
2542 }
2543
2544 /* unknown 8 bytes in pdata
2545 * maybe its the change time in NTTIME
2546 */
2547
2548 /* the used space 8 bytes (uint64_t)*/
2549 qt.usedspace = BVAL(pdata,16);
2550
2551 /* the soft quotas 8 bytes (uint64_t)*/
2552 qt.softlim = BVAL(pdata,24);
2553
2554 /* the hard quotas 8 bytes (uint64_t)*/
2555 qt.hardlim = BVAL(pdata,32);
2556
2557 if (!sid_parse(pdata+40,sid_len,&sid)) {
2558 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2559 return;
2560 }
2561
2562 DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2563
2564 /* 44 unknown bytes left... */
2565
2566 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2567 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2568 return;
2569 }
2570
2571 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2572 pdata, data_len);
2573 }
2574 #endif /* HAVE_SYS_QUOTAS */
2575
2576 static void handle_nttrans(connection_struct *conn,
2577 struct trans_state *state,
2578 struct smb_request *req)
2579 {
2580 if (get_Protocol() >= PROTOCOL_NT1) {
2581 req->flags2 |= 0x40; /* IS_LONG_NAME */
2582 SSVAL(discard_const_p(uint8_t, req->inbuf),smb_flg2,req->flags2);
2583 }
2584
2585
2586 SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2587
2588 /* Now we must call the relevant NT_TRANS function */
2589 switch(state->call) {
2590 case NT_TRANSACT_CREATE:
2591 {
2592 START_PROFILE(NT_transact_create);
2593 call_nt_transact_create(
2594 conn, req,
2595 &state->setup, state->setup_count,
2596 &state->param, state->total_param,
2597 &state->data, state->total_data,
2598 state->max_data_return);
2599 END_PROFILE(NT_transact_create);
2600 break;
2601 }
2602
2603 case NT_TRANSACT_IOCTL:
2604 {
2605 START_PROFILE(NT_transact_ioctl);
2606 call_nt_transact_ioctl(
2607 conn, req,
2608 &state->setup, state->setup_count,
2609 &state->param, state->total_param,
2610 &state->data, state->total_data,
2611 state->max_data_return);
2612 END_PROFILE(NT_transact_ioctl);
2613 break;
2614 }
2615
2616 case NT_TRANSACT_SET_SECURITY_DESC:
2617 {
2618 START_PROFILE(NT_transact_set_security_desc);
2619 call_nt_transact_set_security_desc(
2620 conn, req,
2621 &state->setup, state->setup_count,
2622 &state->param, state->total_param,
2623 &state->data, state->total_data,
2624 state->max_data_return);
2625 END_PROFILE(NT_transact_set_security_desc);
2626 break;
2627 }
2628
2629 case NT_TRANSACT_NOTIFY_CHANGE:
2630 {
2631 START_PROFILE(NT_transact_notify_change);
2632 call_nt_transact_notify_change(
2633 conn, req,
2634 &state->setup, state->setup_count,
2635 &state->param, state->total_param,
2636 &state->data, state->total_data,
2637 state->max_data_return,
2638 state->max_param_return);
2639 END_PROFILE(NT_transact_notify_change);
2640 break;
2641 }
2642
2643 case NT_TRANSACT_RENAME:
2644 {
2645 START_PROFILE(NT_transact_rename);
2646 call_nt_transact_rename(
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_rename);
2653 break;
2654 }
2655
2656 case NT_TRANSACT_QUERY_SECURITY_DESC:
2657 {
2658 START_PROFILE(NT_transact_query_security_desc);
2659 call_nt_transact_query_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_query_security_desc);
2666 break;
2667 }
2668
2669 #ifdef HAVE_SYS_QUOTAS
2670 case NT_TRANSACT_GET_USER_QUOTA:
2671 {
2672 START_PROFILE(NT_transact_get_user_quota);
2673 call_nt_transact_get_user_quota(
2674 conn, req,
2675 &state->setup, state->setup_count,
2676 &state->param, state->total_param,
2677 &state->data, state->total_data,
2678 state->max_data_return);
2679 END_PROFILE(NT_transact_get_user_quota);
2680 break;
2681 }
2682
2683 case NT_TRANSACT_SET_USER_QUOTA:
2684 {
2685 START_PROFILE(NT_transact_set_user_quota);
2686 call_nt_transact_set_user_quota(
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_set_user_quota);
2693 break;
2694 }
2695 #endif /* HAVE_SYS_QUOTAS */
2696
2697 default:
2698 /* Error in request */
2699 DEBUG(0,("handle_nttrans: Unknown request %d in "
2700 "nttrans call\n", state->call));
2701 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2702 return;
2703 }
2704 return;
2705 }
2706
2707 /****************************************************************************
2708 Reply to a SMBNTtrans.
2709 ****************************************************************************/
2710
2711 void reply_nttrans(struct smb_request *req)
2712 {
2713 connection_struct *conn = req->conn;
2714 uint32_t pscnt;
2715 uint32_t psoff;
2716 uint32_t dscnt;
2717 uint32_t dsoff;
2718 uint16 function_code;
2719 NTSTATUS result;
2720 struct trans_state *state;
2721
2722 START_PROFILE(SMBnttrans);
2723
2724 if (req->wct < 19) {
2725 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2726 END_PROFILE(SMBnttrans);
2727 return;
2728 }
2729
2730 pscnt = IVAL(req->vwv+9, 1);
2731 psoff = IVAL(req->vwv+11, 1);
2732 dscnt = IVAL(req->vwv+13, 1);
2733 dsoff = IVAL(req->vwv+15, 1);
2734 function_code = SVAL(req->vwv+18, 0);
2735
2736 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2737 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2738 END_PROFILE(SMBnttrans);
2739 return;
2740 }
2741
2742 result = allow_new_trans(conn->pending_trans, req->mid);
2743 if (!NT_STATUS_IS_OK(result)) {
2744 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2745 reply_nterror(req, result);
2746 END_PROFILE(SMBnttrans);
2747 return;
2748 }
2749
2750 if ((state = talloc(conn, struct trans_state)) == NULL) {
2751 reply_nterror(req, NT_STATUS_NO_MEMORY);
2752 END_PROFILE(SMBnttrans);
2753 return;
2754 }
2755
2756 state->cmd = SMBnttrans;
2757
2758 state->mid = req->mid;
2759 state->vuid = req->vuid;
2760 state->total_data = IVAL(req->vwv+3, 1);
2761 state->data = NULL;
2762 state->total_param = IVAL(req->vwv+1, 1);
2763 state->param = NULL;
2764 state->max_data_return = IVAL(req->vwv+7, 1);
2765 state->max_param_return = IVAL(req->vwv+5, 1);
2766
2767 /* setup count is in *words* */
2768 state->setup_count = 2*CVAL(req->vwv+17, 1);
2769 state->setup = NULL;
2770 state->call = function_code;
2771
2772 DEBUG(10, ("num_setup=%u, "
2773 "param_total=%u, this_param=%u, max_param=%u, "
2774 "data_total=%u, this_data=%u, max_data=%u, "
2775 "param_offset=%u, data_offset=%u\n",
2776 (unsigned)state->setup_count,
2777 (unsigned)state->total_param, (unsigned)pscnt,
2778 (unsigned)state->max_param_return,
2779 (unsigned)state->total_data, (unsigned)dscnt,
2780 (unsigned)state->max_data_return,
2781 (unsigned)psoff, (unsigned)dsoff));
2782
2783 /*
2784 * All nttrans messages we handle have smb_wct == 19 +
2785 * state->setup_count. Ensure this is so as a sanity check.
2786 */
2787
2788 if(req->wct != 19 + (state->setup_count/2)) {
2789 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2790 req->wct, 19 + (state->setup_count/2)));
2791 goto bad_param;
2792 }
2793
2794 /* Don't allow more than 128mb for each value. */
2795 if ((state->total_data > (1024*1024*128)) ||
2796 (state->total_param > (1024*1024*128))) {
2797 reply_nterror(req, NT_STATUS_NO_MEMORY);
2798 END_PROFILE(SMBnttrans);
2799 return;
2800 }
2801
2802 if ((dscnt > state->total_data) || (pscnt > state->total_param))
2803 goto bad_param;
2804
2805 if (state->total_data) {
2806
2807 if (trans_oob(state->total_data, 0, dscnt)
2808 || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
2809 goto bad_param;
2810 }
2811
2812 /* Can't use talloc here, the core routines do realloc on the
2813 * params and data. */
2814 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2815 DEBUG(0,("reply_nttrans: data malloc fail for %u "
2816 "bytes !\n", (unsigned int)state->total_data));
2817 TALLOC_FREE(state);
2818 reply_nterror(req, NT_STATUS_NO_MEMORY);
2819 END_PROFILE(SMBnttrans);
2820 return;
2821 }
2822
2823 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2824 }
2825
2826 if (state->total_param) {
2827
2828 if (trans_oob(state->total_param, 0, pscnt)
2829 || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
2830 goto bad_param;
2831 }
2832
2833 /* Can't use talloc here, the core routines do realloc on the
2834 * params and data. */
2835 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2836 DEBUG(0,("reply_nttrans: param malloc fail for %u "
2837 "bytes !\n", (unsigned int)state->total_param));
2838 SAFE_FREE(state->data);
2839 TALLOC_FREE(state);
2840 reply_nterror(req, NT_STATUS_NO_MEMORY);
2841 END_PROFILE(SMBnttrans);
2842 return;
2843 }
2844
2845 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2846 }
2847
2848 state->received_data = dscnt;
2849 state->received_param = pscnt;
2850
2851 if(state->setup_count > 0) {
2852 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2853 state->setup_count));
2854
2855 /*
2856 * No overflow possible here, state->setup_count is an
2857 * unsigned int, being filled by a single byte from
2858 * CVAL(req->vwv+13, 0) above. The cast in the comparison
2859 * below is not necessary, it's here to clarify things. The
2860 * validity of req->vwv and req->wct has been checked in
2861 * init_smb_request already.
2862 */
2863 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
2864 goto bad_param;
2865 }
2866
2867 state->setup = (uint16 *)TALLOC(state, state->setup_count);
2868 if (state->setup == NULL) {
2869 DEBUG(0,("reply_nttrans : Out of memory\n"));
2870 SAFE_FREE(state->data);
2871 SAFE_FREE(state->param);
2872 TALLOC_FREE(state);
2873 reply_nterror(req, NT_STATUS_NO_MEMORY);
2874 END_PROFILE(SMBnttrans);
2875 return;
2876 }
2877
2878 memcpy(state->setup, req->vwv+19, state->setup_count);
2879 dump_data(10, (uint8 *)state->setup, state->setup_count);
2880 }
2881
2882 if ((state->received_data == state->total_data) &&
2883 (state->received_param == state->total_param)) {
2884 handle_nttrans(conn, state, req);
2885 SAFE_FREE(state->param);
2886 SAFE_FREE(state->data);
2887 TALLOC_FREE(state);
2888 END_PROFILE(SMBnttrans);
2889 return;
2890 }
2891
2892 DLIST_ADD(conn->pending_trans, state);
2893
2894 /* We need to send an interim response then receive the rest
2895 of the parameter/data bytes */
2896 reply_outbuf(req, 0, 0);
2897 show_msg((char *)req->outbuf);
2898 END_PROFILE(SMBnttrans);
2899 return;
2900
2901 bad_param:
2902
2903 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2904 SAFE_FREE(state->data);
2905 SAFE_FREE(state->param);
2906 TALLOC_FREE(state);
2907 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2908 END_PROFILE(SMBnttrans);
2909 return;
2910 }
2911
2912 /****************************************************************************
2913 Reply to a SMBnttranss
2914 ****************************************************************************/
2915
2916 void reply_nttranss(struct smb_request *req)
2917 {
2918 connection_struct *conn = req->conn;
2919 uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
2920 struct trans_state *state;
2921
2922 START_PROFILE(SMBnttranss);
2923
2924 show_msg((const char *)req->inbuf);
2925
2926 /* Windows clients expect all replies to
2927 an NT transact secondary (SMBnttranss 0xA1)
2928 to have a command code of NT transact
2929 (SMBnttrans 0xA0). See bug #8989 for details. */
2930 req->cmd = SMBnttrans;
2931
2932 if (req->wct < 18) {
2933 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2934 END_PROFILE(SMBnttranss);
2935 return;
2936 }
2937
2938 for (state = conn->pending_trans; state != NULL;
2939 state = state->next) {
2940 if (state->mid == req->mid) {
2941 break;
2942 }
2943 }
2944
2945 if ((state == NULL) || (state->cmd != SMBnttrans)) {
2946 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2947 END_PROFILE(SMBnttranss);
2948 return;
2949 }
2950
2951 /* Revise state->total_param and state->total_data in case they have
2952 changed downwards */
2953 if (IVAL(req->vwv+1, 1) < state->total_param) {
2954 state->total_param = IVAL(req->vwv+1, 1);
2955 }
2956 if (IVAL(req->vwv+3, 1) < state->total_data) {
2957 state->total_data = IVAL(req->vwv+3, 1);
2958 }
2959
2960 pcnt = IVAL(req->vwv+5, 1);
2961 poff = IVAL(req->vwv+7, 1);
2962 pdisp = IVAL(req->vwv+9, 1);
2963
2964 dcnt = IVAL(req->vwv+11, 1);
2965 doff = IVAL(req->vwv+13, 1);
2966 ddisp = IVAL(req->vwv+15, 1);
2967
2968 state->received_param += pcnt;
2969 state->received_data += dcnt;
2970
2971 if ((state->received_data > state->total_data) ||
2972 (state->received_param > state->total_param))
2973 goto bad_param;
2974
2975 if (pcnt) {
2976 if (trans_oob(state->total_param, pdisp, pcnt)
2977 || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
2978 goto bad_param;
2979 }
2980 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
2981 }
2982
2983 if (dcnt) {
2984 if (trans_oob(state->total_data, ddisp, dcnt)
2985 || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
2986 goto bad_param;
2987 }
2988 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
2989 }
2990
2991 if ((state->received_param < state->total_param) ||
2992 (state->received_data < state->total_data)) {
2993 END_PROFILE(SMBnttranss);
2994 return;
2995 }
2996
2997 handle_nttrans(conn, state, req);
2998
2999 DLIST_REMOVE(conn->pending_trans, state);
3000 SAFE_FREE(state->data);
3001 SAFE_FREE(state->param);
3002 TALLOC_FREE(state);
3003 END_PROFILE(SMBnttranss);
3004 return;
3005
3006 bad_param:
3007
3008 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
3009 DLIST_REMOVE(conn->pending_trans, state);
3010 SAFE_FREE(state->data);
3011 SAFE_FREE(state->param);
3012 TALLOC_FREE(state);
3013 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3014 END_PROFILE(SMBnttranss);
3015 return;
3016 }
reg import