?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Fix bug #7080 - Quota only shown when logged as root.
[Samba.git] / source3 / smbd / nttrans.c
blobf82820c71bf53e0f33ef48e280637953fcb693ad
1 /*
2 Unix SMB/CIFS implementation.
3 SMB NT transaction handling
4 Copyright (C) Jeremy Allison 1994-2007
5 Copyright (C) Stefan (metze) Metzmacher 2003
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
19 */
20
21 #include "includes.h"
22 #include "smbd/globals.h"
23
24 extern const struct generic_mapping file_generic_mapping;
25
26 static char *nttrans_realloc(char **ptr, size_t size)
27 {
28 if (ptr==NULL) {
29 smb_panic("nttrans_realloc() called with NULL ptr");
30 }
31
32 *ptr = (char *)SMB_REALLOC(*ptr, size);
33 if(*ptr == NULL) {
34 return NULL;
35 }
36 memset(*ptr,'\0',size);
37 return *ptr;
38 }
39
40 /****************************************************************************
41 Send the required number of replies back.
42 We assume all fields other than the data fields are
43 set correctly for the type of call.
44 HACK ! Always assumes smb_setup field is zero.
45 ****************************************************************************/
46
47 void send_nt_replies(connection_struct *conn,
48 struct smb_request *req, NTSTATUS nt_error,
49 char *params, int paramsize,
50 char *pdata, int datasize)
51 {
52 int data_to_send = datasize;
53 int params_to_send = paramsize;
54 int useable_space;
55 char *pp = params;
56 char *pd = pdata;
57 int params_sent_thistime, data_sent_thistime, total_sent_thistime;
58 int alignment_offset = 3;
59 int data_alignment_offset = 0;
60 struct smbd_server_connection *sconn = smbd_server_conn;
61 int max_send = sconn->smb1.sessions.max_send;
62
63 /*
64 * If there genuinely are no parameters or data to send just send
65 * the empty packet.
66 */
67
68 if(params_to_send == 0 && data_to_send == 0) {
69 reply_outbuf(req, 18, 0);
70 if (NT_STATUS_V(nt_error)) {
71 error_packet_set((char *)req->outbuf,
72 0, 0, nt_error,
73 __LINE__,__FILE__);
74 }
75 show_msg((char *)req->outbuf);
76 if (!srv_send_smb(smbd_server_fd(),
77 (char *)req->outbuf,
78 true, req->seqnum+1,
79 IS_CONN_ENCRYPTED(conn),
80 &req->pcd)) {
81 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
82 }
83 TALLOC_FREE(req->outbuf);
84 return;
85 }
86
87 /*
88 * When sending params and data ensure that both are nicely aligned.
89 * Only do this alignment when there is also data to send - else
90 * can cause NT redirector problems.
91 */
92
93 if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
94 data_alignment_offset = 4 - (params_to_send % 4);
95 }
96
97 /*
98 * Space is bufsize minus Netbios over TCP header minus SMB header.
99 * The alignment_offset is to align the param bytes on a four byte
100 * boundary (2 bytes for data len, one byte pad).
101 * NT needs this to work correctly.
102 */
103
104 useable_space = max_send - (smb_size
105 + 2 * 18 /* wct */
106 + alignment_offset
107 + data_alignment_offset);
108
109 if (useable_space < 0) {
110 char *msg = talloc_asprintf(
111 talloc_tos(),
112 "send_nt_replies failed sanity useable_space = %d!!!",
113 useable_space);
114 DEBUG(0, ("%s\n", msg));
115 exit_server_cleanly(msg);
116 }
117
118 while (params_to_send || data_to_send) {
119
120 /*
121 * Calculate whether we will totally or partially fill this packet.
122 */
123
124 total_sent_thistime = params_to_send + data_to_send;
125
126 /*
127 * We can never send more than useable_space.
128 */
129
130 total_sent_thistime = MIN(total_sent_thistime, useable_space);
131
132 reply_outbuf(req, 18,
133 total_sent_thistime + alignment_offset
134 + data_alignment_offset);
135
136 /*
137 * We might have had SMBnttranss in req->inbuf, fix that.
138 */
139 SCVAL(req->outbuf, smb_com, SMBnttrans);
140
141 /*
142 * Set total params and data to be sent.
143 */
144
145 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
146 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
147
148 /*
149 * Calculate how many parameters and data we can fit into
150 * this packet. Parameters get precedence.
151 */
152
153 params_sent_thistime = MIN(params_to_send,useable_space);
154 data_sent_thistime = useable_space - params_sent_thistime;
155 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
156
157 SIVAL(req->outbuf, smb_ntr_ParameterCount,
158 params_sent_thistime);
159
160 if(params_sent_thistime == 0) {
161 SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
162 SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
163 } else {
164 /*
165 * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
166 * parameter bytes, however the first 4 bytes of outbuf are
167 * the Netbios over TCP header. Thus use smb_base() to subtract
168 * them from the calculation.
169 */
170
171 SIVAL(req->outbuf,smb_ntr_ParameterOffset,
172 ((smb_buf(req->outbuf)+alignment_offset)
173 - smb_base(req->outbuf)));
174 /*
175 * Absolute displacement of param bytes sent in this packet.
176 */
177
178 SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
179 pp - params);
180 }
181
182 /*
183 * Deal with the data portion.
184 */
185
186 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
187
188 if(data_sent_thistime == 0) {
189 SIVAL(req->outbuf,smb_ntr_DataOffset,0);
190 SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
191 } else {
192 /*
193 * The offset of the data bytes is the offset of the
194 * parameter bytes plus the number of parameters being sent this time.
195 */
196
197 SIVAL(req->outbuf, smb_ntr_DataOffset,
198 ((smb_buf(req->outbuf)+alignment_offset) -
199 smb_base(req->outbuf))
200 + params_sent_thistime + data_alignment_offset);
201 SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
202 }
203
204 /*
205 * Copy the param bytes into the packet.
206 */
207
208 if(params_sent_thistime) {
209 if (alignment_offset != 0) {
210 memset(smb_buf(req->outbuf), 0,
211 alignment_offset);
212 }
213 memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
214 params_sent_thistime);
215 }
216
217 /*
218 * Copy in the data bytes
219 */
220
221 if(data_sent_thistime) {
222 if (data_alignment_offset != 0) {
223 memset((smb_buf(req->outbuf)+alignment_offset+
224 params_sent_thistime), 0,
225 data_alignment_offset);
226 }
227 memcpy(smb_buf(req->outbuf)+alignment_offset
228 +params_sent_thistime+data_alignment_offset,
229 pd,data_sent_thistime);
230 }
231
232 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
233 params_sent_thistime, data_sent_thistime, useable_space));
234 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
235 params_to_send, data_to_send, paramsize, datasize));
236
237 if (NT_STATUS_V(nt_error)) {
238 error_packet_set((char *)req->outbuf,
239 0, 0, nt_error,
240 __LINE__,__FILE__);
241 }
242
243 /* Send the packet */
244 show_msg((char *)req->outbuf);
245 if (!srv_send_smb(smbd_server_fd(),
246 (char *)req->outbuf,
247 true, req->seqnum+1,
248 IS_CONN_ENCRYPTED(conn),
249 &req->pcd)) {
250 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
251 }
252
253 TALLOC_FREE(req->outbuf);
254
255 pp += params_sent_thistime;
256 pd += data_sent_thistime;
257
258 params_to_send -= params_sent_thistime;
259 data_to_send -= data_sent_thistime;
260
261 /*
262 * Sanity check
263 */
264
265 if(params_to_send < 0 || data_to_send < 0) {
266 DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
267 params_to_send, data_to_send));
268 exit_server_cleanly("send_nt_replies: internal error");
269 }
270 }
271 }
272
273 /****************************************************************************
274 Reply to an NT create and X call on a pipe
275 ****************************************************************************/
276
277 static void nt_open_pipe(char *fname, connection_struct *conn,
278 struct smb_request *req, int *ppnum)
279 {
280 files_struct *fsp;
281 NTSTATUS status;
282
283 DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
284
285 /* Strip \\ off the name. */
286 fname++;
287
288 status = open_np_file(req, fname, &fsp);
289 if (!NT_STATUS_IS_OK(status)) {
290 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
291 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
292 ERRDOS, ERRbadpipe);
293 return;
294 }
295 reply_nterror(req, status);
296 return;
297 }
298
299 *ppnum = fsp->fnum;
300 return;
301 }
302
303 /****************************************************************************
304 Reply to an NT create and X call for pipes.
305 ****************************************************************************/
306
307 static void do_ntcreate_pipe_open(connection_struct *conn,
308 struct smb_request *req)
309 {
310 char *fname = NULL;
311 int pnum = -1;
312 char *p = NULL;
313 uint32 flags = IVAL(req->vwv+3, 1);
314 TALLOC_CTX *ctx = talloc_tos();
315
316 srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
317
318 if (!fname) {
319 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
320 ERRDOS, ERRbadpipe);
321 return;
322 }
323 nt_open_pipe(fname, conn, req, &pnum);
324
325 if (req->outbuf) {
326 /* error reply */
327 return;
328 }
329
330 /*
331 * Deal with pipe return.
332 */
333
334 if (flags & EXTENDED_RESPONSE_REQUIRED) {
335 /* This is very strange. We
336 * return 50 words, but only set
337 * the wcnt to 42 ? It's definately
338 * what happens on the wire....
339 */
340 reply_outbuf(req, 50, 0);
341 SCVAL(req->outbuf,smb_wct,42);
342 } else {
343 reply_outbuf(req, 34, 0);
344 }
345
346 p = (char *)req->outbuf + smb_vwv2;
347 p++;
348 SSVAL(p,0,pnum);
349 p += 2;
350 SIVAL(p,0,FILE_WAS_OPENED);
351 p += 4;
352 p += 32;
353 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
354 p += 20;
355 /* File type. */
356 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
357 /* Device state. */
358 SSVAL(p,2, 0x5FF); /* ? */
359 p += 4;
360
361 if (flags & EXTENDED_RESPONSE_REQUIRED) {
362 p += 25;
363 SIVAL(p,0,FILE_GENERIC_ALL);
364 /*
365 * For pipes W2K3 seems to return
366 * 0x12019B next.
367 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
368 */
369 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
370 }
371
372 DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
373
374 chain_reply(req);
375 }
376
377 struct case_semantics_state {
378 connection_struct *conn;
379 bool case_sensitive;
380 bool case_preserve;
381 bool short_case_preserve;
382 };
383
384 /****************************************************************************
385 Restore case semantics.
386 ****************************************************************************/
387
388 static int restore_case_semantics(struct case_semantics_state *state)
389 {
390 state->conn->case_sensitive = state->case_sensitive;
391 state->conn->case_preserve = state->case_preserve;
392 state->conn->short_case_preserve = state->short_case_preserve;
393 return 0;
394 }
395
396 /****************************************************************************
397 Save case semantics.
398 ****************************************************************************/
399
400 static struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx,
401 connection_struct *conn)
402 {
403 struct case_semantics_state *result;
404
405 if (!(result = talloc(mem_ctx, struct case_semantics_state))) {
406 return NULL;
407 }
408
409 result->conn = conn;
410 result->case_sensitive = conn->case_sensitive;
411 result->case_preserve = conn->case_preserve;
412 result->short_case_preserve = conn->short_case_preserve;
413
414 /* Set to POSIX. */
415 conn->case_sensitive = True;
416 conn->case_preserve = True;
417 conn->short_case_preserve = True;
418
419 talloc_set_destructor(result, restore_case_semantics);
420
421 return result;
422 }
423
424 /****************************************************************************
425 Reply to an NT create and X call.
426 ****************************************************************************/
427
428 void reply_ntcreate_and_X(struct smb_request *req)
429 {
430 connection_struct *conn = req->conn;
431 struct smb_filename *smb_fname = NULL;
432 char *fname = NULL;
433 uint32 flags;
434 uint32 access_mask;
435 uint32 file_attributes;
436 uint32 share_access;
437 uint32 create_disposition;
438 uint32 create_options;
439 uint16 root_dir_fid;
440 uint64_t allocation_size;
441 /* Breakout the oplock request bits so we can set the
442 reply bits separately. */
443 uint32 fattr=0;
444 SMB_OFF_T file_len = 0;
445 int info = 0;
446 files_struct *fsp = NULL;
447 char *p = NULL;
448 struct timespec create_timespec;
449 struct timespec c_timespec;
450 struct timespec a_timespec;
451 struct timespec m_timespec;
452 struct timespec write_time_ts;
453 NTSTATUS status;
454 int oplock_request;
455 uint8_t oplock_granted = NO_OPLOCK_RETURN;
456 struct case_semantics_state *case_state = NULL;
457 TALLOC_CTX *ctx = talloc_tos();
458
459 START_PROFILE(SMBntcreateX);
460
461 if (req->wct < 24) {
462 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
463 goto out;
464 }
465
466 flags = IVAL(req->vwv+3, 1);
467 access_mask = IVAL(req->vwv+7, 1);
468 file_attributes = IVAL(req->vwv+13, 1);
469 share_access = IVAL(req->vwv+15, 1);
470 create_disposition = IVAL(req->vwv+17, 1);
471 create_options = IVAL(req->vwv+19, 1);
472 root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
473
474 allocation_size = (uint64_t)IVAL(req->vwv+9, 1);
475 #ifdef LARGE_SMB_OFF_T
476 allocation_size |= (((uint64_t)IVAL(req->vwv+11, 1)) << 32);
477 #endif
478
479 srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
480 STR_TERMINATE, &status);
481
482 if (!NT_STATUS_IS_OK(status)) {
483 reply_nterror(req, status);
484 goto out;
485 }
486
487 DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
488 "file_attributes = 0x%x, share_access = 0x%x, "
489 "create_disposition = 0x%x create_options = 0x%x "
490 "root_dir_fid = 0x%x, fname = %s\n",
491 (unsigned int)flags,
492 (unsigned int)access_mask,
493 (unsigned int)file_attributes,
494 (unsigned int)share_access,
495 (unsigned int)create_disposition,
496 (unsigned int)create_options,
497 (unsigned int)root_dir_fid,
498 fname));
499
500 /*
501 * we need to remove ignored bits when they come directly from the client
502 * because we reuse some of them for internal stuff
503 */
504 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
505
506 /*
507 * If it's an IPC, use the pipe handler.
508 */
509
510 if (IS_IPC(conn)) {
511 if (lp_nt_pipe_support()) {
512 do_ntcreate_pipe_open(conn, req);
513 goto out;
514 }
515 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
516 goto out;
517 }
518
519 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
520 if (oplock_request) {
521 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
522 ? BATCH_OPLOCK : 0;
523 }
524
525 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
526 case_state = set_posix_case_semantics(ctx, conn);
527 if (!case_state) {
528 reply_nterror(req, NT_STATUS_NO_MEMORY);
529 goto out;
530 }
531 }
532
533 status = filename_convert(ctx,
534 conn,
535 req->flags2 & FLAGS2_DFS_PATHNAMES,
536 fname,
537 0,
538 NULL,
539 &smb_fname);
540
541 TALLOC_FREE(case_state);
542
543 if (!NT_STATUS_IS_OK(status)) {
544 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
545 reply_botherror(req,
546 NT_STATUS_PATH_NOT_COVERED,
547 ERRSRV, ERRbadpath);
548 goto out;
549 }
550 reply_nterror(req, status);
551 goto out;
552 }
553
554 /*
555 * Bug #6898 - clients using Windows opens should
556 * never be able to set this attribute into the
557 * VFS.
558 */
559 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
560
561 status = SMB_VFS_CREATE_FILE(
562 conn, /* conn */
563 req, /* req */
564 root_dir_fid, /* root_dir_fid */
565 smb_fname, /* fname */
566 access_mask, /* access_mask */
567 share_access, /* share_access */
568 create_disposition, /* create_disposition*/
569 create_options, /* create_options */
570 file_attributes, /* file_attributes */
571 oplock_request, /* oplock_request */
572 allocation_size, /* allocation_size */
573 NULL, /* sd */
574 NULL, /* ea_list */
575 &fsp, /* result */
576 &info); /* pinfo */
577
578 if (!NT_STATUS_IS_OK(status)) {
579 if (open_was_deferred(req->mid)) {
580 /* We have re-scheduled this call, no error. */
581 goto out;
582 }
583 reply_openerror(req, status);
584 goto out;
585 }
586
587 /* Ensure we're pointing at the correct stat struct. */
588 TALLOC_FREE(smb_fname);
589 smb_fname = fsp->fsp_name;
590
591 /*
592 * If the caller set the extended oplock request bit
593 * and we granted one (by whatever means) - set the
594 * correct bit for extended oplock reply.
595 */
596
597 if (oplock_request &&
598 (lp_fake_oplocks(SNUM(conn))
599 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
600
601 /*
602 * Exclusive oplock granted
603 */
604
605 if (flags & REQUEST_BATCH_OPLOCK) {
606 oplock_granted = BATCH_OPLOCK_RETURN;
607 } else {
608 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
609 }
610 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
611 oplock_granted = LEVEL_II_OPLOCK_RETURN;
612 } else {
613 oplock_granted = NO_OPLOCK_RETURN;
614 }
615
616 file_len = smb_fname->st.st_ex_size;
617
618 if (flags & EXTENDED_RESPONSE_REQUIRED) {
619 /* This is very strange. We
620 * return 50 words, but only set
621 * the wcnt to 42 ? It's definately
622 * what happens on the wire....
623 */
624 reply_outbuf(req, 50, 0);
625 SCVAL(req->outbuf,smb_wct,42);
626 } else {
627 reply_outbuf(req, 34, 0);
628 }
629
630 p = (char *)req->outbuf + smb_vwv2;
631
632 SCVAL(p, 0, oplock_granted);
633
634 p++;
635 SSVAL(p,0,fsp->fnum);
636 p += 2;
637 if ((create_disposition == FILE_SUPERSEDE)
638 && (info == FILE_WAS_OVERWRITTEN)) {
639 SIVAL(p,0,FILE_WAS_SUPERSEDED);
640 } else {
641 SIVAL(p,0,info);
642 }
643 p += 4;
644
645 fattr = dos_mode(conn, smb_fname);
646 if (fattr == 0) {
647 fattr = FILE_ATTRIBUTE_NORMAL;
648 }
649
650 /* Deal with other possible opens having a modified
651 write time. JRA. */
652 ZERO_STRUCT(write_time_ts);
653 get_file_infos(fsp->file_id, NULL, &write_time_ts);
654 if (!null_timespec(write_time_ts)) {
655 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
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;
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 = SMB_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 can_write_to_file(conn, smb_fname)) {
714 perms = FILE_GENERIC_ALL;
715 } else {
716 perms = FILE_GENERIC_READ|FILE_EXECUTE;
717 }
718 SIVAL(p,0,perms);
719 }
720
721 DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
722 fsp->fnum, smb_fname_str_dbg(smb_fname)));
723
724 chain_reply(req);
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 int pnum = -1;
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 Internal fn to set security descriptors.
828 ****************************************************************************/
829
830 static NTSTATUS set_sd(files_struct *fsp, uint8 *data, uint32 sd_len,
831 uint32 security_info_sent)
832 {
833 SEC_DESC *psd = NULL;
834 NTSTATUS status;
835
836 if (sd_len == 0) {
837 return NT_STATUS_INVALID_PARAMETER;
838 }
839
840 if (!CAN_WRITE(fsp->conn)) {
841 return NT_STATUS_ACCESS_DENIED;
842 }
843
844 if (!lp_nt_acl_support(SNUM(fsp->conn))) {
845 return NT_STATUS_OK;
846 }
847
848 status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
849
850 if (!NT_STATUS_IS_OK(status)) {
851 return status;
852 }
853
854 if (psd->owner_sid == NULL) {
855 security_info_sent &= ~OWNER_SECURITY_INFORMATION;
856 }
857 if (psd->group_sid == NULL) {
858 security_info_sent &= ~GROUP_SECURITY_INFORMATION;
859 }
860
861 /* Ensure we have at least one thing set. */
862 if ((security_info_sent & (SECINFO_OWNER|SECINFO_GROUP|SECINFO_DACL|SECINFO_SACL)) == 0) {
863 return NT_STATUS_INVALID_PARAMETER;
864 }
865
866 /* Ensure we have the rights to do this. */
867 if (security_info_sent & SECINFO_OWNER) {
868 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
869 return NT_STATUS_ACCESS_DENIED;
870 }
871 }
872
873 if (security_info_sent & SECINFO_GROUP) {
874 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
875 return NT_STATUS_ACCESS_DENIED;
876 }
877 }
878
879 if (security_info_sent & SECINFO_DACL) {
880 if (!(fsp->access_mask & SEC_STD_WRITE_DAC)) {
881 return NT_STATUS_ACCESS_DENIED;
882 }
883 /* Convert all the generic bits. */
884 if (psd->dacl) {
885 security_acl_map_generic(psd->dacl, &file_generic_mapping);
886 }
887 }
888
889 if (security_info_sent & SECINFO_SACL) {
890 if (!(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
891 return NT_STATUS_ACCESS_DENIED;
892 }
893 /* Convert all the generic bits. */
894 if (psd->sacl) {
895 security_acl_map_generic(psd->sacl, &file_generic_mapping);
896 }
897 }
898
899 if (DEBUGLEVEL >= 10) {
900 DEBUG(10,("set_sd for file %s\n", fsp_str_dbg(fsp)));
901 NDR_PRINT_DEBUG(security_descriptor, psd);
902 }
903
904 status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
905
906 TALLOC_FREE(psd);
907
908 return status;
909 }
910
911 /****************************************************************************
912 Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
913 ****************************************************************************/
914
915 struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
916 {
917 struct ea_list *ea_list_head = NULL;
918 size_t offset = 0;
919
920 if (data_size < 4) {
921 return NULL;
922 }
923
924 while (offset + 4 <= data_size) {
925 size_t next_offset = IVAL(pdata,offset);
926 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
927
928 if (!eal) {
929 return NULL;
930 }
931
932 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
933 if (next_offset == 0) {
934 break;
935 }
936 offset += next_offset;
937 }
938
939 return ea_list_head;
940 }
941
942 /****************************************************************************
943 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
944 ****************************************************************************/
945
946 static void call_nt_transact_create(connection_struct *conn,
947 struct smb_request *req,
948 uint16 **ppsetup, uint32 setup_count,
949 char **ppparams, uint32 parameter_count,
950 char **ppdata, uint32 data_count,
951 uint32 max_data_count)
952 {
953 struct smb_filename *smb_fname = NULL;
954 char *fname = NULL;
955 char *params = *ppparams;
956 char *data = *ppdata;
957 /* Breakout the oplock request bits so we can set the reply bits separately. */
958 uint32 fattr=0;
959 SMB_OFF_T file_len = 0;
960 int info = 0;
961 files_struct *fsp = NULL;
962 char *p = NULL;
963 uint32 flags;
964 uint32 access_mask;
965 uint32 file_attributes;
966 uint32 share_access;
967 uint32 create_disposition;
968 uint32 create_options;
969 uint32 sd_len;
970 struct security_descriptor *sd = NULL;
971 uint32 ea_len;
972 uint16 root_dir_fid;
973 struct timespec create_timespec;
974 struct timespec c_timespec;
975 struct timespec a_timespec;
976 struct timespec m_timespec;
977 struct timespec write_time_ts;
978 struct ea_list *ea_list = NULL;
979 NTSTATUS status;
980 size_t param_len;
981 uint64_t allocation_size;
982 int oplock_request;
983 uint8_t oplock_granted;
984 struct case_semantics_state *case_state = NULL;
985 TALLOC_CTX *ctx = talloc_tos();
986
987 DEBUG(5,("call_nt_transact_create\n"));
988
989 /*
990 * If it's an IPC, use the pipe handler.
991 */
992
993 if (IS_IPC(conn)) {
994 if (lp_nt_pipe_support()) {
995 do_nt_transact_create_pipe(
996 conn, req,
997 ppsetup, setup_count,
998 ppparams, parameter_count,
999 ppdata, data_count);
1000 goto out;
1001 }
1002 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1003 goto out;
1004 }
1005
1006 /*
1007 * Ensure minimum number of parameters sent.
1008 */
1009
1010 if(parameter_count < 54) {
1011 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1012 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1013 goto out;
1014 }
1015
1016 flags = IVAL(params,0);
1017 access_mask = IVAL(params,8);
1018 file_attributes = IVAL(params,20);
1019 share_access = IVAL(params,24);
1020 create_disposition = IVAL(params,28);
1021 create_options = IVAL(params,32);
1022 sd_len = IVAL(params,36);
1023 ea_len = IVAL(params,40);
1024 root_dir_fid = (uint16)IVAL(params,4);
1025 allocation_size = (uint64_t)IVAL(params,12);
1026 #ifdef LARGE_SMB_OFF_T
1027 allocation_size |= (((uint64_t)IVAL(params,16)) << 32);
1028 #endif
1029
1030 /*
1031 * we need to remove ignored bits when they come directly from the client
1032 * because we reuse some of them for internal stuff
1033 */
1034 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
1035
1036 /* Ensure the data_len is correct for the sd and ea values given. */
1037 if ((ea_len + sd_len > data_count)
1038 || (ea_len > data_count) || (sd_len > data_count)
1039 || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
1040 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
1041 "%u, data_count = %u\n", (unsigned int)ea_len,
1042 (unsigned int)sd_len, (unsigned int)data_count));
1043 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1044 goto out;
1045 }
1046
1047 if (sd_len) {
1048 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
1049 sd_len));
1050
1051 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
1052 &sd);
1053 if (!NT_STATUS_IS_OK(status)) {
1054 DEBUG(10, ("call_nt_transact_create: "
1055 "unmarshall_sec_desc failed: %s\n",
1056 nt_errstr(status)));
1057 reply_nterror(req, status);
1058 goto out;
1059 }
1060 }
1061
1062 if (ea_len) {
1063 if (!lp_ea_support(SNUM(conn))) {
1064 DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
1065 "EA's not supported.\n",
1066 (unsigned int)ea_len));
1067 reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
1068 goto out;
1069 }
1070
1071 if (ea_len < 10) {
1072 DEBUG(10,("call_nt_transact_create - ea_len = %u - "
1073 "too small (should be more than 10)\n",
1074 (unsigned int)ea_len ));
1075 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1076 goto out;
1077 }
1078
1079 /* We have already checked that ea_len <= data_count here. */
1080 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
1081 ea_len);
1082 if (ea_list == NULL) {
1083 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1084 goto out;
1085 }
1086 }
1087
1088 srvstr_get_path(ctx, params, req->flags2, &fname,
1089 params+53, parameter_count-53,
1090 STR_TERMINATE, &status);
1091 if (!NT_STATUS_IS_OK(status)) {
1092 reply_nterror(req, status);
1093 goto out;
1094 }
1095
1096 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
1097 case_state = set_posix_case_semantics(ctx, conn);
1098 if (!case_state) {
1099 reply_nterror(req, NT_STATUS_NO_MEMORY);
1100 goto out;
1101 }
1102 }
1103
1104 status = filename_convert(ctx,
1105 conn,
1106 req->flags2 & FLAGS2_DFS_PATHNAMES,
1107 fname,
1108 0,
1109 NULL,
1110 &smb_fname);
1111
1112 TALLOC_FREE(case_state);
1113
1114 if (!NT_STATUS_IS_OK(status)) {
1115 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1116 reply_botherror(req,
1117 NT_STATUS_PATH_NOT_COVERED,
1118 ERRSRV, ERRbadpath);
1119 goto out;
1120 }
1121 reply_nterror(req, status);
1122 goto out;
1123 }
1124
1125 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1126 if (oplock_request) {
1127 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1128 ? BATCH_OPLOCK : 0;
1129 }
1130
1131 /*
1132 * Bug #6898 - clients using Windows opens should
1133 * never be able to set this attribute into the
1134 * VFS.
1135 */
1136 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
1137
1138 status = SMB_VFS_CREATE_FILE(
1139 conn, /* conn */
1140 req, /* req */
1141 root_dir_fid, /* root_dir_fid */
1142 smb_fname, /* fname */
1143 access_mask, /* access_mask */
1144 share_access, /* share_access */
1145 create_disposition, /* create_disposition*/
1146 create_options, /* create_options */
1147 file_attributes, /* file_attributes */
1148 oplock_request, /* oplock_request */
1149 allocation_size, /* allocation_size */
1150 sd, /* sd */
1151 ea_list, /* ea_list */
1152 &fsp, /* result */
1153 &info); /* pinfo */
1154
1155 if(!NT_STATUS_IS_OK(status)) {
1156 if (open_was_deferred(req->mid)) {
1157 /* We have re-scheduled this call, no error. */
1158 return;
1159 }
1160 reply_openerror(req, status);
1161 goto out;
1162 }
1163
1164 /* Ensure we're pointing at the correct stat struct. */
1165 TALLOC_FREE(smb_fname);
1166 smb_fname = fsp->fsp_name;
1167
1168 /*
1169 * If the caller set the extended oplock request bit
1170 * and we granted one (by whatever means) - set the
1171 * correct bit for extended oplock reply.
1172 */
1173
1174 if (oplock_request &&
1175 (lp_fake_oplocks(SNUM(conn))
1176 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1177
1178 /*
1179 * Exclusive oplock granted
1180 */
1181
1182 if (flags & REQUEST_BATCH_OPLOCK) {
1183 oplock_granted = BATCH_OPLOCK_RETURN;
1184 } else {
1185 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1186 }
1187 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1188 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1189 } else {
1190 oplock_granted = NO_OPLOCK_RETURN;
1191 }
1192
1193 file_len = smb_fname->st.st_ex_size;
1194
1195 /* Realloc the size of parameters and data we will return */
1196 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1197 /* Extended response is 32 more byyes. */
1198 param_len = 101;
1199 } else {
1200 param_len = 69;
1201 }
1202 params = nttrans_realloc(ppparams, param_len);
1203 if(params == NULL) {
1204 reply_nterror(req, NT_STATUS_NO_MEMORY);
1205 goto out;
1206 }
1207
1208 p = params;
1209 SCVAL(p, 0, oplock_granted);
1210
1211 p += 2;
1212 SSVAL(p,0,fsp->fnum);
1213 p += 2;
1214 if ((create_disposition == FILE_SUPERSEDE)
1215 && (info == FILE_WAS_OVERWRITTEN)) {
1216 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1217 } else {
1218 SIVAL(p,0,info);
1219 }
1220 p += 8;
1221
1222 fattr = dos_mode(conn, smb_fname);
1223 if (fattr == 0) {
1224 fattr = FILE_ATTRIBUTE_NORMAL;
1225 }
1226
1227 /* Deal with other possible opens having a modified
1228 write time. JRA. */
1229 ZERO_STRUCT(write_time_ts);
1230 get_file_infos(fsp->file_id, NULL, &write_time_ts);
1231 if (!null_timespec(write_time_ts)) {
1232 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
1233 }
1234
1235 /* Create time. */
1236 create_timespec = get_create_timespec(conn, fsp, smb_fname);
1237 a_timespec = smb_fname->st.st_ex_atime;
1238 m_timespec = smb_fname->st.st_ex_mtime;
1239 c_timespec = get_change_timespec(conn, fsp, smb_fname);
1240
1241 if (lp_dos_filetime_resolution(SNUM(conn))) {
1242 dos_filetime_timespec(&create_timespec);
1243 dos_filetime_timespec(&a_timespec);
1244 dos_filetime_timespec(&m_timespec);
1245 dos_filetime_timespec(&c_timespec);
1246 }
1247
1248 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
1249 p += 8;
1250 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
1251 p += 8;
1252 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
1253 p += 8;
1254 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
1255 p += 8;
1256 SIVAL(p,0,fattr); /* File Attributes. */
1257 p += 4;
1258 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1259 p += 8;
1260 SOFF_T(p,0,file_len);
1261 p += 8;
1262 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1263 SSVAL(p,2,0x7);
1264 }
1265 p += 4;
1266 SCVAL(p,0,fsp->is_directory ? 1 : 0);
1267
1268 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1269 uint32 perms = 0;
1270 p += 25;
1271 if (fsp->is_directory ||
1272 can_write_to_file(conn, smb_fname)) {
1273 perms = FILE_GENERIC_ALL;
1274 } else {
1275 perms = FILE_GENERIC_READ|FILE_EXECUTE;
1276 }
1277 SIVAL(p,0,perms);
1278 }
1279
1280 DEBUG(5,("call_nt_transact_create: open name = %s\n",
1281 smb_fname_str_dbg(smb_fname)));
1282
1283 /* Send the required number of replies */
1284 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1285 out:
1286 return;
1287 }
1288
1289 /****************************************************************************
1290 Reply to a NT CANCEL request.
1291 conn POINTER CAN BE NULL HERE !
1292 ****************************************************************************/
1293
1294 void reply_ntcancel(struct smb_request *req)
1295 {
1296 /*
1297 * Go through and cancel any pending change notifies.
1298 */
1299
1300 START_PROFILE(SMBntcancel);
1301 srv_cancel_sign_response(smbd_server_conn);
1302 remove_pending_change_notify_requests_by_mid(req->mid);
1303 remove_pending_lock_requests_by_mid(req->mid);
1304
1305 DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", req->mid));
1306
1307 END_PROFILE(SMBntcancel);
1308 return;
1309 }
1310
1311 /****************************************************************************
1312 Copy a file.
1313 ****************************************************************************/
1314
1315 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1316 connection_struct *conn,
1317 struct smb_request *req,
1318 struct smb_filename *smb_fname_src,
1319 struct smb_filename *smb_fname_dst,
1320 uint32 attrs)
1321 {
1322 files_struct *fsp1,*fsp2;
1323 uint32 fattr;
1324 int info;
1325 SMB_OFF_T ret=-1;
1326 NTSTATUS status = NT_STATUS_OK;
1327 char *parent;
1328
1329 if (!CAN_WRITE(conn)) {
1330 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1331 goto out;
1332 }
1333
1334 /* Source must already exist. */
1335 if (!VALID_STAT(smb_fname_src->st)) {
1336 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1337 goto out;
1338 }
1339
1340 /* Ensure attributes match. */
1341 fattr = dos_mode(conn, smb_fname_src);
1342 if ((fattr & ~attrs) & (aHIDDEN | aSYSTEM)) {
1343 status = NT_STATUS_NO_SUCH_FILE;
1344 goto out;
1345 }
1346
1347 /* Disallow if dst file already exists. */
1348 if (VALID_STAT(smb_fname_dst->st)) {
1349 status = NT_STATUS_OBJECT_NAME_COLLISION;
1350 goto out;
1351 }
1352
1353 /* No links from a directory. */
1354 if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1355 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1356 goto out;
1357 }
1358
1359 DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1360 smb_fname_str_dbg(smb_fname_src),
1361 smb_fname_str_dbg(smb_fname_dst)));
1362
1363 status = SMB_VFS_CREATE_FILE(
1364 conn, /* conn */
1365 req, /* req */
1366 0, /* root_dir_fid */
1367 smb_fname_src, /* fname */
1368 FILE_READ_DATA, /* access_mask */
1369 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1370 FILE_SHARE_DELETE),
1371 FILE_OPEN, /* create_disposition*/
1372 0, /* create_options */
1373 FILE_ATTRIBUTE_NORMAL, /* file_attributes */
1374 NO_OPLOCK, /* oplock_request */
1375 0, /* allocation_size */
1376 NULL, /* sd */
1377 NULL, /* ea_list */
1378 &fsp1, /* result */
1379 &info); /* pinfo */
1380
1381 if (!NT_STATUS_IS_OK(status)) {
1382 goto out;
1383 }
1384
1385 status = SMB_VFS_CREATE_FILE(
1386 conn, /* conn */
1387 req, /* req */
1388 0, /* root_dir_fid */
1389 smb_fname_dst, /* fname */
1390 FILE_WRITE_DATA, /* access_mask */
1391 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1392 FILE_SHARE_DELETE),
1393 FILE_CREATE, /* create_disposition*/
1394 0, /* create_options */
1395 fattr, /* file_attributes */
1396 NO_OPLOCK, /* oplock_request */
1397 0, /* allocation_size */
1398 NULL, /* sd */
1399 NULL, /* ea_list */
1400 &fsp2, /* result */
1401 &info); /* pinfo */
1402
1403 if (!NT_STATUS_IS_OK(status)) {
1404 close_file(NULL, fsp1, ERROR_CLOSE);
1405 goto out;
1406 }
1407
1408 if (smb_fname_src->st.st_ex_size) {
1409 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1410 }
1411
1412 /*
1413 * As we are opening fsp1 read-only we only expect
1414 * an error on close on fsp2 if we are out of space.
1415 * Thus we don't look at the error return from the
1416 * close of fsp1.
1417 */
1418 close_file(NULL, fsp1, NORMAL_CLOSE);
1419
1420 /* Ensure the modtime is set correctly on the destination file. */
1421 set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1422
1423 status = close_file(NULL, fsp2, NORMAL_CLOSE);
1424
1425 /* Grrr. We have to do this as open_file_ntcreate adds aARCH when it
1426 creates the file. This isn't the correct thing to do in the copy
1427 case. JRA */
1428 if (!parent_dirname(talloc_tos(), smb_fname_dst->base_name, &parent,
1429 NULL)) {
1430 status = NT_STATUS_NO_MEMORY;
1431 goto out;
1432 }
1433 file_set_dosmode(conn, smb_fname_dst, fattr, parent, false);
1434 TALLOC_FREE(parent);
1435
1436 if (ret < (SMB_OFF_T)smb_fname_src->st.st_ex_size) {
1437 status = NT_STATUS_DISK_FULL;
1438 goto out;
1439 }
1440 out:
1441 if (!NT_STATUS_IS_OK(status)) {
1442 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1443 nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1444 smb_fname_str_dbg(smb_fname_dst)));
1445 }
1446
1447 return status;
1448 }
1449
1450 /****************************************************************************
1451 Reply to a NT rename request.
1452 ****************************************************************************/
1453
1454 void reply_ntrename(struct smb_request *req)
1455 {
1456 connection_struct *conn = req->conn;
1457 struct smb_filename *smb_fname_old = NULL;
1458 struct smb_filename *smb_fname_new = NULL;
1459 char *oldname = NULL;
1460 char *newname = NULL;
1461 const char *p;
1462 NTSTATUS status;
1463 bool src_has_wcard = False;
1464 bool dest_has_wcard = False;
1465 uint32 attrs;
1466 uint32_t ucf_flags_src = 0;
1467 uint32_t ucf_flags_dst = 0;
1468 uint16 rename_type;
1469 TALLOC_CTX *ctx = talloc_tos();
1470
1471 START_PROFILE(SMBntrename);
1472
1473 if (req->wct < 4) {
1474 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1475 goto out;
1476 }
1477
1478 attrs = SVAL(req->vwv+0, 0);
1479 rename_type = SVAL(req->vwv+1, 0);
1480
1481 p = (const char *)req->buf + 1;
1482 p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1483 &status, &src_has_wcard);
1484 if (!NT_STATUS_IS_OK(status)) {
1485 reply_nterror(req, status);
1486 goto out;
1487 }
1488
1489 if (ms_has_wild(oldname)) {
1490 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1491 goto out;
1492 }
1493
1494 p++;
1495 p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1496 &status, &dest_has_wcard);
1497 if (!NT_STATUS_IS_OK(status)) {
1498 reply_nterror(req, status);
1499 goto out;
1500 }
1501
1502 /* The newname must begin with a ':' if the oldname contains a ':'. */
1503 if (strchr_m(oldname, ':') && (newname[0] != ':')) {
1504 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1505 goto out;
1506 }
1507
1508 /*
1509 * If this is a rename operation, allow wildcards and save the
1510 * destination's last component.
1511 */
1512 if (rename_type == RENAME_FLAG_RENAME) {
1513 ucf_flags_src = UCF_COND_ALLOW_WCARD_LCOMP;
1514 ucf_flags_dst = UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1515 }
1516
1517 /* rename_internals() calls unix_convert(), so don't call it here. */
1518 status = filename_convert(ctx, conn,
1519 req->flags2 & FLAGS2_DFS_PATHNAMES,
1520 oldname,
1521 ucf_flags_src,
1522 NULL,
1523 &smb_fname_old);
1524 if (!NT_STATUS_IS_OK(status)) {
1525 if (NT_STATUS_EQUAL(status,
1526 NT_STATUS_PATH_NOT_COVERED)) {
1527 reply_botherror(req,
1528 NT_STATUS_PATH_NOT_COVERED,
1529 ERRSRV, ERRbadpath);
1530 goto out;
1531 }
1532 reply_nterror(req, status);
1533 goto out;
1534 }
1535
1536 status = filename_convert(ctx, conn,
1537 req->flags2 & FLAGS2_DFS_PATHNAMES,
1538 newname,
1539 ucf_flags_dst,
1540 &dest_has_wcard,
1541 &smb_fname_new);
1542 if (!NT_STATUS_IS_OK(status)) {
1543 if (NT_STATUS_EQUAL(status,
1544 NT_STATUS_PATH_NOT_COVERED)) {
1545 reply_botherror(req,
1546 NT_STATUS_PATH_NOT_COVERED,
1547 ERRSRV, ERRbadpath);
1548 goto out;
1549 }
1550 reply_nterror(req, status);
1551 goto out;
1552 }
1553
1554 DEBUG(3,("reply_ntrename: %s -> %s\n",
1555 smb_fname_str_dbg(smb_fname_old),
1556 smb_fname_str_dbg(smb_fname_new)));
1557
1558 switch(rename_type) {
1559 case RENAME_FLAG_RENAME:
1560 status = rename_internals(ctx, conn, req,
1561 smb_fname_old, smb_fname_new,
1562 attrs, False, src_has_wcard,
1563 dest_has_wcard,
1564 DELETE_ACCESS);
1565 break;
1566 case RENAME_FLAG_HARD_LINK:
1567 if (src_has_wcard || dest_has_wcard) {
1568 /* No wildcards. */
1569 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1570 } else {
1571 status = hardlink_internals(ctx, conn,
1572 smb_fname_old,
1573 smb_fname_new);
1574 }
1575 break;
1576 case RENAME_FLAG_COPY:
1577 if (src_has_wcard || dest_has_wcard) {
1578 /* No wildcards. */
1579 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1580 } else {
1581 status = copy_internals(ctx, conn, req,
1582 smb_fname_old,
1583 smb_fname_new,
1584 attrs);
1585 }
1586 break;
1587 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1588 status = NT_STATUS_INVALID_PARAMETER;
1589 break;
1590 default:
1591 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1592 break;
1593 }
1594
1595 if (!NT_STATUS_IS_OK(status)) {
1596 if (open_was_deferred(req->mid)) {
1597 /* We have re-scheduled this call. */
1598 goto out;
1599 }
1600
1601 reply_nterror(req, status);
1602 goto out;
1603 }
1604
1605 reply_outbuf(req, 0, 0);
1606 out:
1607 END_PROFILE(SMBntrename);
1608 return;
1609 }
1610
1611 /****************************************************************************
1612 Reply to a notify change - queue the request and
1613 don't allow a directory to be opened.
1614 ****************************************************************************/
1615
1616 static void smbd_smb1_notify_reply(struct smb_request *req,
1617 NTSTATUS error_code,
1618 uint8_t *buf, size_t len)
1619 {
1620 send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1621 }
1622
1623 static void call_nt_transact_notify_change(connection_struct *conn,
1624 struct smb_request *req,
1625 uint16 **ppsetup,
1626 uint32 setup_count,
1627 char **ppparams,
1628 uint32 parameter_count,
1629 char **ppdata, uint32 data_count,
1630 uint32 max_data_count,
1631 uint32 max_param_count)
1632 {
1633 uint16 *setup = *ppsetup;
1634 files_struct *fsp;
1635 uint32 filter;
1636 NTSTATUS status;
1637 bool recursive;
1638
1639 if(setup_count < 6) {
1640 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1641 return;
1642 }
1643
1644 fsp = file_fsp(req, SVAL(setup,4));
1645 filter = IVAL(setup, 0);
1646 recursive = (SVAL(setup, 6) != 0) ? True : False;
1647
1648 DEBUG(3,("call_nt_transact_notify_change\n"));
1649
1650 if(!fsp) {
1651 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1652 return;
1653 }
1654
1655 {
1656 char *filter_string;
1657
1658 if (!(filter_string = notify_filter_string(NULL, filter))) {
1659 reply_nterror(req,NT_STATUS_NO_MEMORY);
1660 return;
1661 }
1662
1663 DEBUG(3,("call_nt_transact_notify_change: notify change "
1664 "called on %s, filter = %s, recursive = %d\n",
1665 fsp_str_dbg(fsp), filter_string, recursive));
1666
1667 TALLOC_FREE(filter_string);
1668 }
1669
1670 if((!fsp->is_directory) || (conn != fsp->conn)) {
1671 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1672 return;
1673 }
1674
1675 if (fsp->notify == NULL) {
1676
1677 status = change_notify_create(fsp, filter, recursive);
1678
1679 if (!NT_STATUS_IS_OK(status)) {
1680 DEBUG(10, ("change_notify_create returned %s\n",
1681 nt_errstr(status)));
1682 reply_nterror(req, status);
1683 return;
1684 }
1685 }
1686
1687 if (fsp->notify->num_changes != 0) {
1688
1689 /*
1690 * We've got changes pending, respond immediately
1691 */
1692
1693 /*
1694 * TODO: write a torture test to check the filtering behaviour
1695 * here.
1696 */
1697
1698 change_notify_reply(fsp->conn, req,
1699 NT_STATUS_OK,
1700 max_param_count,
1701 fsp->notify,
1702 smbd_smb1_notify_reply);
1703
1704 /*
1705 * change_notify_reply() above has independently sent its
1706 * results
1707 */
1708 return;
1709 }
1710
1711 /*
1712 * No changes pending, queue the request
1713 */
1714
1715 status = change_notify_add_request(req,
1716 max_param_count,
1717 filter,
1718 recursive, fsp,
1719 smbd_smb1_notify_reply);
1720 if (!NT_STATUS_IS_OK(status)) {
1721 reply_nterror(req, status);
1722 }
1723 return;
1724 }
1725
1726 /****************************************************************************
1727 Reply to an NT transact rename command.
1728 ****************************************************************************/
1729
1730 static void call_nt_transact_rename(connection_struct *conn,
1731 struct smb_request *req,
1732 uint16 **ppsetup, uint32 setup_count,
1733 char **ppparams, uint32 parameter_count,
1734 char **ppdata, uint32 data_count,
1735 uint32 max_data_count)
1736 {
1737 char *params = *ppparams;
1738 char *new_name = NULL;
1739 files_struct *fsp = NULL;
1740 bool dest_has_wcard = False;
1741 NTSTATUS status;
1742 TALLOC_CTX *ctx = talloc_tos();
1743
1744 if(parameter_count < 5) {
1745 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1746 return;
1747 }
1748
1749 fsp = file_fsp(req, SVAL(params, 0));
1750 if (!check_fsp(conn, req, fsp)) {
1751 return;
1752 }
1753 srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1754 parameter_count - 4,
1755 STR_TERMINATE, &status, &dest_has_wcard);
1756 if (!NT_STATUS_IS_OK(status)) {
1757 reply_nterror(req, status);
1758 return;
1759 }
1760
1761 /*
1762 * W2K3 ignores this request as the RAW-RENAME test
1763 * demonstrates, so we do.
1764 */
1765 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1766
1767 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1768 fsp_str_dbg(fsp), new_name));
1769
1770 return;
1771 }
1772
1773 /******************************************************************************
1774 Fake up a completely empty SD.
1775 *******************************************************************************/
1776
1777 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
1778 {
1779 size_t sd_size;
1780
1781 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1782 if(!*ppsd) {
1783 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1784 return NT_STATUS_NO_MEMORY;
1785 }
1786
1787 return NT_STATUS_OK;
1788 }
1789
1790 /****************************************************************************
1791 Reply to query a security descriptor.
1792 ****************************************************************************/
1793
1794 static void call_nt_transact_query_security_desc(connection_struct *conn,
1795 struct smb_request *req,
1796 uint16 **ppsetup,
1797 uint32 setup_count,
1798 char **ppparams,
1799 uint32 parameter_count,
1800 char **ppdata,
1801 uint32 data_count,
1802 uint32 max_data_count)
1803 {
1804 char *params = *ppparams;
1805 char *data = *ppdata;
1806 SEC_DESC *psd = NULL;
1807 size_t sd_size;
1808 uint32 security_info_wanted;
1809 files_struct *fsp = NULL;
1810 NTSTATUS status;
1811 DATA_BLOB blob;
1812
1813 if(parameter_count < 8) {
1814 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1815 return;
1816 }
1817
1818 fsp = file_fsp(req, SVAL(params,0));
1819 if(!fsp) {
1820 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1821 return;
1822 }
1823
1824 security_info_wanted = IVAL(params,4);
1825
1826 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
1827 "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
1828 (unsigned int)security_info_wanted));
1829
1830 params = nttrans_realloc(ppparams, 4);
1831 if(params == NULL) {
1832 reply_nterror(req, NT_STATUS_NO_MEMORY);
1833 return;
1834 }
1835
1836 /*
1837 * Get the permissions to return.
1838 */
1839
1840 if ((security_info_wanted & SECINFO_SACL) &&
1841 !(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
1842 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1843 return;
1844 }
1845
1846 if ((security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|SECINFO_GROUP)) &&
1847 !(fsp->access_mask & SEC_STD_READ_CONTROL)) {
1848 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1849 return;
1850 }
1851
1852 if (!lp_nt_acl_support(SNUM(conn))) {
1853 status = get_null_nt_acl(talloc_tos(), &psd);
1854 } else {
1855 status = SMB_VFS_FGET_NT_ACL(
1856 fsp, security_info_wanted, &psd);
1857 }
1858 if (!NT_STATUS_IS_OK(status)) {
1859 reply_nterror(req, status);
1860 return;
1861 }
1862
1863 if (!(security_info_wanted & SECINFO_OWNER)) {
1864 psd->owner_sid = NULL;
1865 }
1866 if (!(security_info_wanted & SECINFO_GROUP)) {
1867 psd->group_sid = NULL;
1868 }
1869 if (!(security_info_wanted & SECINFO_DACL)) {
1870 psd->dacl = NULL;
1871 }
1872 if (!(security_info_wanted & SECINFO_SACL)) {
1873 psd->sacl = NULL;
1874 }
1875
1876 /* If the SACL/DACL is NULL, but was requested, we mark that it is
1877 * present in the reply to match Windows behavior */
1878 if (psd->sacl == NULL &&
1879 security_info_wanted & SACL_SECURITY_INFORMATION)
1880 psd->type |= SEC_DESC_SACL_PRESENT;
1881 if (psd->dacl == NULL &&
1882 security_info_wanted & DACL_SECURITY_INFORMATION)
1883 psd->type |= SEC_DESC_DACL_PRESENT;
1884
1885 sd_size = ndr_size_security_descriptor(psd, NULL, 0);
1886
1887 DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %lu.\n",(unsigned long)sd_size));
1888
1889 if (DEBUGLEVEL >= 10) {
1890 DEBUG(10,("call_nt_transact_query_security_desc for file %s\n",
1891 fsp_str_dbg(fsp)));
1892 NDR_PRINT_DEBUG(security_descriptor, psd);
1893 }
1894
1895 SIVAL(params,0,(uint32)sd_size);
1896
1897 if (max_data_count < sd_size) {
1898 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1899 params, 4, *ppdata, 0);
1900 return;
1901 }
1902
1903 /*
1904 * Allocate the data we will point this at.
1905 */
1906
1907 data = nttrans_realloc(ppdata, sd_size);
1908 if(data == NULL) {
1909 reply_nterror(req, NT_STATUS_NO_MEMORY);
1910 return;
1911 }
1912
1913 status = marshall_sec_desc(talloc_tos(), psd,
1914 &blob.data, &blob.length);
1915
1916 if (!NT_STATUS_IS_OK(status)) {
1917 reply_nterror(req, status);
1918 return;
1919 }
1920
1921 SMB_ASSERT(sd_size == blob.length);
1922 memcpy(data, blob.data, sd_size);
1923
1924 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
1925
1926 return;
1927 }
1928
1929 /****************************************************************************
1930 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
1931 ****************************************************************************/
1932
1933 static void call_nt_transact_set_security_desc(connection_struct *conn,
1934 struct smb_request *req,
1935 uint16 **ppsetup,
1936 uint32 setup_count,
1937 char **ppparams,
1938 uint32 parameter_count,
1939 char **ppdata,
1940 uint32 data_count,
1941 uint32 max_data_count)
1942 {
1943 char *params= *ppparams;
1944 char *data = *ppdata;
1945 files_struct *fsp = NULL;
1946 uint32 security_info_sent = 0;
1947 NTSTATUS status;
1948
1949 if(parameter_count < 8) {
1950 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1951 return;
1952 }
1953
1954 if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
1955 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1956 return;
1957 }
1958
1959 if(!lp_nt_acl_support(SNUM(conn))) {
1960 goto done;
1961 }
1962
1963 security_info_sent = IVAL(params,4);
1964
1965 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
1966 fsp_str_dbg(fsp), (unsigned int)security_info_sent));
1967
1968 if (data_count == 0) {
1969 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1970 return;
1971 }
1972
1973 status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
1974
1975 if (!NT_STATUS_IS_OK(status)) {
1976 reply_nterror(req, status);
1977 return;
1978 }
1979
1980 done:
1981 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1982 return;
1983 }
1984
1985 /****************************************************************************
1986 Reply to NT IOCTL
1987 ****************************************************************************/
1988
1989 static void call_nt_transact_ioctl(connection_struct *conn,
1990 struct smb_request *req,
1991 uint16 **ppsetup, uint32 setup_count,
1992 char **ppparams, uint32 parameter_count,
1993 char **ppdata, uint32 data_count,
1994 uint32 max_data_count)
1995 {
1996 uint32 function;
1997 uint16 fidnum;
1998 files_struct *fsp;
1999 uint8 isFSctl;
2000 uint8 compfilter;
2001 char *pdata = *ppdata;
2002
2003 if (setup_count != 8) {
2004 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
2005 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2006 return;
2007 }
2008
2009 function = IVAL(*ppsetup, 0);
2010 fidnum = SVAL(*ppsetup, 4);
2011 isFSctl = CVAL(*ppsetup, 6);
2012 compfilter = CVAL(*ppsetup, 7);
2013
2014 DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
2015 function, fidnum, isFSctl, compfilter));
2016
2017 fsp=file_fsp(req, fidnum);
2018 /* this check is done in each implemented function case for now
2019 because I don't want to break anything... --metze
2020 FSP_BELONGS_CONN(fsp,conn);*/
2021
2022 SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
2023
2024 switch (function) {
2025 case FSCTL_SET_SPARSE:
2026 /* pretend this succeeded - tho strictly we should
2027 mark the file sparse (if the local fs supports it)
2028 so we can know if we need to pre-allocate or not */
2029
2030 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum));
2031 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2032 return;
2033
2034 case FSCTL_CREATE_OR_GET_OBJECT_ID:
2035 {
2036 unsigned char objid[16];
2037
2038 /* This should return the object-id on this file.
2039 * I think I'll make this be the inode+dev. JRA.
2040 */
2041
2042 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
2043
2044 if (!fsp_belongs_conn(conn, req, fsp)) {
2045 return;
2046 }
2047
2048 data_count = 64;
2049 pdata = nttrans_realloc(ppdata, data_count);
2050 if (pdata == NULL) {
2051 reply_nterror(req, NT_STATUS_NO_MEMORY);
2052 return;
2053 }
2054
2055 /* For backwards compatibility only store the dev/inode. */
2056 push_file_id_16(pdata, &fsp->file_id);
2057 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
2058 push_file_id_16(pdata+32, &fsp->file_id);
2059 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2060 pdata, data_count);
2061 return;
2062 }
2063
2064 case FSCTL_GET_REPARSE_POINT:
2065 /* pretend this fail - my winXP does it like this
2066 * --metze
2067 */
2068
2069 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
2070 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
2071 return;
2072
2073 case FSCTL_SET_REPARSE_POINT:
2074 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
2075 * --metze
2076 */
2077
2078 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
2079 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
2080 return;
2081
2082 case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
2083 {
2084 /*
2085 * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
2086 * and return their volume names. If max_data_count is 16, then it is just
2087 * asking for the number of volumes and length of the combined names.
2088 *
2089 * pdata is the data allocated by our caller, but that uses
2090 * total_data_count (which is 0 in our case) rather than max_data_count.
2091 * Allocate the correct amount and return the pointer to let
2092 * it be deallocated when we return.
2093 */
2094 SHADOW_COPY_DATA *shadow_data = NULL;
2095 TALLOC_CTX *shadow_mem_ctx = NULL;
2096 bool labels = False;
2097 uint32 labels_data_count = 0;
2098 uint32 i;
2099 char *cur_pdata;
2100
2101 if (!fsp_belongs_conn(conn, req, fsp)) {
2102 return;
2103 }
2104
2105 if (max_data_count < 16) {
2106 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
2107 max_data_count));
2108 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2109 return;
2110 }
2111
2112 if (max_data_count > 16) {
2113 labels = True;
2114 }
2115
2116 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
2117 if (shadow_mem_ctx == NULL) {
2118 DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
2119 reply_nterror(req, NT_STATUS_NO_MEMORY);
2120 return;
2121 }
2122
2123 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
2124 if (shadow_data == NULL) {
2125 DEBUG(0,("TALLOC_ZERO() failed!\n"));
2126 talloc_destroy(shadow_mem_ctx);
2127 reply_nterror(req, NT_STATUS_NO_MEMORY);
2128 return;
2129 }
2130
2131 shadow_data->mem_ctx = shadow_mem_ctx;
2132
2133 /*
2134 * Call the VFS routine to actually do the work.
2135 */
2136 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
2137 talloc_destroy(shadow_data->mem_ctx);
2138 if (errno == ENOSYS) {
2139 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
2140 conn->connectpath));
2141 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2142 return;
2143 } else {
2144 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
2145 conn->connectpath));
2146 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
2147 return;
2148 }
2149 }
2150
2151 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
2152
2153 if (!labels) {
2154 data_count = 16;
2155 } else {
2156 data_count = 12+labels_data_count+4;
2157 }
2158
2159 if (max_data_count<data_count) {
2160 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
2161 max_data_count,data_count));
2162 talloc_destroy(shadow_data->mem_ctx);
2163 reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
2164 return;
2165 }
2166
2167 pdata = nttrans_realloc(ppdata, data_count);
2168 if (pdata == NULL) {
2169 talloc_destroy(shadow_data->mem_ctx);
2170 reply_nterror(req, NT_STATUS_NO_MEMORY);
2171 return;
2172 }
2173
2174 cur_pdata = pdata;
2175
2176 /* num_volumes 4 bytes */
2177 SIVAL(pdata,0,shadow_data->num_volumes);
2178
2179 if (labels) {
2180 /* num_labels 4 bytes */
2181 SIVAL(pdata,4,shadow_data->num_volumes);
2182 }
2183
2184 /* needed_data_count 4 bytes */
2185 SIVAL(pdata, 8, labels_data_count+4);
2186
2187 cur_pdata+=12;
2188
2189 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
2190 shadow_data->num_volumes, fsp_str_dbg(fsp)));
2191 if (labels && shadow_data->labels) {
2192 for (i=0;i<shadow_data->num_volumes;i++) {
2193 srvstr_push(pdata, req->flags2,
2194 cur_pdata, shadow_data->labels[i],
2195 2*sizeof(SHADOW_COPY_LABEL),
2196 STR_UNICODE|STR_TERMINATE);
2197 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
2198 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
2199 }
2200 }
2201
2202 talloc_destroy(shadow_data->mem_ctx);
2203
2204 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2205 pdata, data_count);
2206
2207 return;
2208 }
2209
2210 case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
2211 {
2212 /* pretend this succeeded -
2213 *
2214 * we have to send back a list with all files owned by this SID
2215 *
2216 * but I have to check that --metze
2217 */
2218 DOM_SID sid;
2219 uid_t uid;
2220 size_t sid_len = MIN(data_count-4,SID_MAX_SIZE);
2221
2222 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
2223
2224 if (!fsp_belongs_conn(conn, req, fsp)) {
2225 return;
2226 }
2227
2228 /* unknown 4 bytes: this is not the length of the sid :-( */
2229 /*unknown = IVAL(pdata,0);*/
2230
2231 if (!sid_parse(pdata+4,sid_len,&sid)) {
2232 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2233 return;
2234 }
2235
2236 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
2237
2238 if (!sid_to_uid(&sid, &uid)) {
2239 DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
2240 sid_string_dbg(&sid),
2241 (unsigned long)sid_len));
2242 uid = (-1);
2243 }
2244
2245 /* we can take a look at the find source :-)
2246 *
2247 * find ./ -uid $uid -name '*' is what we need here
2248 *
2249 *
2250 * and send 4bytes len and then NULL terminated unicode strings
2251 * for each file
2252 *
2253 * but I don't know how to deal with the paged results
2254 * (maybe we can hang the result anywhere in the fsp struct)
2255 *
2256 * we don't send all files at once
2257 * and at the next we should *not* start from the beginning,
2258 * so we have to cache the result
2259 *
2260 * --metze
2261 */
2262
2263 /* this works for now... */
2264 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2265 return;
2266 }
2267 default:
2268 if (!logged_ioctl_message) {
2269 logged_ioctl_message = true; /* Only print this once... */
2270 DEBUG(0,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n",
2271 function));
2272 }
2273 }
2274
2275 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2276 }
2277
2278
2279 #ifdef HAVE_SYS_QUOTAS
2280 /****************************************************************************
2281 Reply to get user quota
2282 ****************************************************************************/
2283
2284 static void call_nt_transact_get_user_quota(connection_struct *conn,
2285 struct smb_request *req,
2286 uint16 **ppsetup,
2287 uint32 setup_count,
2288 char **ppparams,
2289 uint32 parameter_count,
2290 char **ppdata,
2291 uint32 data_count,
2292 uint32 max_data_count)
2293 {
2294 NTSTATUS nt_status = NT_STATUS_OK;
2295 char *params = *ppparams;
2296 char *pdata = *ppdata;
2297 char *entry;
2298 int data_len=0,param_len=0;
2299 int qt_len=0;
2300 int entry_len = 0;
2301 files_struct *fsp = NULL;
2302 uint16 level = 0;
2303 size_t sid_len;
2304 DOM_SID sid;
2305 bool start_enum = True;
2306 SMB_NTQUOTA_STRUCT qt;
2307 SMB_NTQUOTA_LIST *tmp_list;
2308 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2309
2310 ZERO_STRUCT(qt);
2311
2312 /* access check */
2313 if (conn->server_info->utok.uid != 0 && !conn->admin_user) {
2314 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2315 "[%s]\n", lp_servicename(SNUM(conn)),
2316 conn->server_info->unix_name));
2317 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2318 return;
2319 }
2320
2321 /*
2322 * Ensure minimum number of parameters sent.
2323 */
2324
2325 if (parameter_count < 4) {
2326 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2327 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2328 return;
2329 }
2330
2331 /* maybe we can check the quota_fnum */
2332 fsp = file_fsp(req, SVAL(params,0));
2333 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2334 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2335 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2336 return;
2337 }
2338
2339 /* the NULL pointer checking for fsp->fake_file_handle->pd
2340 * is done by CHECK_NTQUOTA_HANDLE_OK()
2341 */
2342 qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2343
2344 level = SVAL(params,2);
2345
2346 /* unknown 12 bytes leading in params */
2347
2348 switch (level) {
2349 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2350 /* seems that we should continue with the enum here --metze */
2351
2352 if (qt_handle->quota_list!=NULL &&
2353 qt_handle->tmp_list==NULL) {
2354
2355 /* free the list */
2356 free_ntquota_list(&(qt_handle->quota_list));
2357
2358 /* Realloc the size of parameters and data we will return */
2359 param_len = 4;
2360 params = nttrans_realloc(ppparams, param_len);
2361 if(params == NULL) {
2362 reply_nterror(req, NT_STATUS_NO_MEMORY);
2363 return;
2364 }
2365
2366 data_len = 0;
2367 SIVAL(params,0,data_len);
2368
2369 break;
2370 }
2371
2372 start_enum = False;
2373
2374 case TRANSACT_GET_USER_QUOTA_LIST_START:
2375
2376 if (qt_handle->quota_list==NULL &&
2377 qt_handle->tmp_list==NULL) {
2378 start_enum = True;
2379 }
2380
2381 if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2382 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2383 return;
2384 }
2385
2386 /* Realloc the size of parameters and data we will return */
2387 param_len = 4;
2388 params = nttrans_realloc(ppparams, param_len);
2389 if(params == NULL) {
2390 reply_nterror(req, NT_STATUS_NO_MEMORY);
2391 return;
2392 }
2393
2394 /* we should not trust the value in max_data_count*/
2395 max_data_count = MIN(max_data_count,2048);
2396
2397 pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2398 if(pdata == NULL) {
2399 reply_nterror(req, NT_STATUS_NO_MEMORY);
2400 return;
2401 }
2402
2403 entry = pdata;
2404
2405 /* set params Size of returned Quota Data 4 bytes*/
2406 /* but set it later when we know it */
2407
2408 /* for each entry push the data */
2409
2410 if (start_enum) {
2411 qt_handle->tmp_list = qt_handle->quota_list;
2412 }
2413
2414 tmp_list = qt_handle->tmp_list;
2415
2416 for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2417 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2418
2419 sid_len = ndr_size_dom_sid(
2420 &tmp_list->quotas->sid, NULL, 0);
2421 entry_len = 40 + sid_len;
2422
2423 /* nextoffset entry 4 bytes */
2424 SIVAL(entry,0,entry_len);
2425
2426 /* then the len of the SID 4 bytes */
2427 SIVAL(entry,4,sid_len);
2428
2429 /* unknown data 8 bytes uint64_t */
2430 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2431
2432 /* the used disk space 8 bytes uint64_t */
2433 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2434
2435 /* the soft quotas 8 bytes uint64_t */
2436 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2437
2438 /* the hard quotas 8 bytes uint64_t */
2439 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2440
2441 /* and now the SID */
2442 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2443 }
2444
2445 qt_handle->tmp_list = tmp_list;
2446
2447 /* overwrite the offset of the last entry */
2448 SIVAL(entry-entry_len,0,0);
2449
2450 data_len = 4+qt_len;
2451 /* overwrite the params quota_data_len */
2452 SIVAL(params,0,data_len);
2453
2454 break;
2455
2456 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2457
2458 /* unknown 4 bytes IVAL(pdata,0) */
2459
2460 if (data_count < 8) {
2461 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2462 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2463 return;
2464 }
2465
2466 sid_len = IVAL(pdata,4);
2467 /* Ensure this is less than 1mb. */
2468 if (sid_len > (1024*1024)) {
2469 reply_nterror(req, NT_STATUS_NO_MEMORY);
2470 return;
2471 }
2472
2473 if (data_count < 8+sid_len) {
2474 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2475 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2476 return;
2477 }
2478
2479 data_len = 4+40+sid_len;
2480
2481 if (max_data_count < data_len) {
2482 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2483 max_data_count, data_len));
2484 param_len = 4;
2485 SIVAL(params,0,data_len);
2486 data_len = 0;
2487 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2488 break;
2489 }
2490
2491 if (!sid_parse(pdata+8,sid_len,&sid)) {
2492 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2493 return;
2494 }
2495
2496 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2497 ZERO_STRUCT(qt);
2498 /*
2499 * we have to return zero's in all fields
2500 * instead of returning an error here
2501 * --metze
2502 */
2503 }
2504
2505 /* Realloc the size of parameters and data we will return */
2506 param_len = 4;
2507 params = nttrans_realloc(ppparams, param_len);
2508 if(params == NULL) {
2509 reply_nterror(req, NT_STATUS_NO_MEMORY);
2510 return;
2511 }
2512
2513 pdata = nttrans_realloc(ppdata, data_len);
2514 if(pdata == NULL) {
2515 reply_nterror(req, NT_STATUS_NO_MEMORY);
2516 return;
2517 }
2518
2519 entry = pdata;
2520
2521 /* set params Size of returned Quota Data 4 bytes*/
2522 SIVAL(params,0,data_len);
2523
2524 /* nextoffset entry 4 bytes */
2525 SIVAL(entry,0,0);
2526
2527 /* then the len of the SID 4 bytes */
2528 SIVAL(entry,4,sid_len);
2529
2530 /* unknown data 8 bytes uint64_t */
2531 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2532
2533 /* the used disk space 8 bytes uint64_t */
2534 SBIG_UINT(entry,16,qt.usedspace);
2535
2536 /* the soft quotas 8 bytes uint64_t */
2537 SBIG_UINT(entry,24,qt.softlim);
2538
2539 /* the hard quotas 8 bytes uint64_t */
2540 SBIG_UINT(entry,32,qt.hardlim);
2541
2542 /* and now the SID */
2543 sid_linearize(entry+40, sid_len, &sid);
2544
2545 break;
2546
2547 default:
2548 DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2549 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2550 return;
2551 break;
2552 }
2553
2554 send_nt_replies(conn, req, nt_status, params, param_len,
2555 pdata, data_len);
2556 }
2557
2558 /****************************************************************************
2559 Reply to set user quota
2560 ****************************************************************************/
2561
2562 static void call_nt_transact_set_user_quota(connection_struct *conn,
2563 struct smb_request *req,
2564 uint16 **ppsetup,
2565 uint32 setup_count,
2566 char **ppparams,
2567 uint32 parameter_count,
2568 char **ppdata,
2569 uint32 data_count,
2570 uint32 max_data_count)
2571 {
2572 char *params = *ppparams;
2573 char *pdata = *ppdata;
2574 int data_len=0,param_len=0;
2575 SMB_NTQUOTA_STRUCT qt;
2576 size_t sid_len;
2577 DOM_SID sid;
2578 files_struct *fsp = NULL;
2579
2580 ZERO_STRUCT(qt);
2581
2582 /* access check */
2583 if (conn->server_info->utok.uid != 0 && !conn->admin_user) {
2584 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2585 "[%s]\n", lp_servicename(SNUM(conn)),
2586 conn->server_info->unix_name));
2587 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2588 return;
2589 }
2590
2591 /*
2592 * Ensure minimum number of parameters sent.
2593 */
2594
2595 if (parameter_count < 2) {
2596 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2597 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2598 return;
2599 }
2600
2601 /* maybe we can check the quota_fnum */
2602 fsp = file_fsp(req, SVAL(params,0));
2603 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2604 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2605 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2606 return;
2607 }
2608
2609 if (data_count < 40) {
2610 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2611 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2612 return;
2613 }
2614
2615 /* offset to next quota record.
2616 * 4 bytes IVAL(pdata,0)
2617 * unused here...
2618 */
2619
2620 /* sid len */
2621 sid_len = IVAL(pdata,4);
2622
2623 if (data_count < 40+sid_len) {
2624 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2625 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2626 return;
2627 }
2628
2629 /* unknown 8 bytes in pdata
2630 * maybe its the change time in NTTIME
2631 */
2632
2633 /* the used space 8 bytes (uint64_t)*/
2634 qt.usedspace = (uint64_t)IVAL(pdata,16);
2635 #ifdef LARGE_SMB_OFF_T
2636 qt.usedspace |= (((uint64_t)IVAL(pdata,20)) << 32);
2637 #else /* LARGE_SMB_OFF_T */
2638 if ((IVAL(pdata,20) != 0)&&
2639 ((qt.usedspace != 0xFFFFFFFF)||
2640 (IVAL(pdata,20)!=0xFFFFFFFF))) {
2641 /* more than 32 bits? */
2642 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2643 return;
2644 }
2645 #endif /* LARGE_SMB_OFF_T */
2646
2647 /* the soft quotas 8 bytes (uint64_t)*/
2648 qt.softlim = (uint64_t)IVAL(pdata,24);
2649 #ifdef LARGE_SMB_OFF_T
2650 qt.softlim |= (((uint64_t)IVAL(pdata,28)) << 32);
2651 #else /* LARGE_SMB_OFF_T */
2652 if ((IVAL(pdata,28) != 0)&&
2653 ((qt.softlim != 0xFFFFFFFF)||
2654 (IVAL(pdata,28)!=0xFFFFFFFF))) {
2655 /* more than 32 bits? */
2656 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2657 return;
2658 }
2659 #endif /* LARGE_SMB_OFF_T */
2660
2661 /* the hard quotas 8 bytes (uint64_t)*/
2662 qt.hardlim = (uint64_t)IVAL(pdata,32);
2663 #ifdef LARGE_SMB_OFF_T
2664 qt.hardlim |= (((uint64_t)IVAL(pdata,36)) << 32);
2665 #else /* LARGE_SMB_OFF_T */
2666 if ((IVAL(pdata,36) != 0)&&
2667 ((qt.hardlim != 0xFFFFFFFF)||
2668 (IVAL(pdata,36)!=0xFFFFFFFF))) {
2669 /* more than 32 bits? */
2670 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2671 return;
2672 }
2673 #endif /* LARGE_SMB_OFF_T */
2674
2675 if (!sid_parse(pdata+40,sid_len,&sid)) {
2676 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2677 return;
2678 }
2679
2680 DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2681
2682 /* 44 unknown bytes left... */
2683
2684 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2685 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2686 return;
2687 }
2688
2689 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2690 pdata, data_len);
2691 }
2692 #endif /* HAVE_SYS_QUOTAS */
2693
2694 static void handle_nttrans(connection_struct *conn,
2695 struct trans_state *state,
2696 struct smb_request *req)
2697 {
2698 if (get_Protocol() >= PROTOCOL_NT1) {
2699 req->flags2 |= 0x40; /* IS_LONG_NAME */
2700 SSVAL(req->inbuf,smb_flg2,req->flags2);
2701 }
2702
2703
2704 SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2705
2706 /* Now we must call the relevant NT_TRANS function */
2707 switch(state->call) {
2708 case NT_TRANSACT_CREATE:
2709 {
2710 START_PROFILE(NT_transact_create);
2711 call_nt_transact_create(
2712 conn, req,
2713 &state->setup, state->setup_count,
2714 &state->param, state->total_param,
2715 &state->data, state->total_data,
2716 state->max_data_return);
2717 END_PROFILE(NT_transact_create);
2718 break;
2719 }
2720
2721 case NT_TRANSACT_IOCTL:
2722 {
2723 START_PROFILE(NT_transact_ioctl);
2724 call_nt_transact_ioctl(
2725 conn, req,
2726 &state->setup, state->setup_count,
2727 &state->param, state->total_param,
2728 &state->data, state->total_data,
2729 state->max_data_return);
2730 END_PROFILE(NT_transact_ioctl);
2731 break;
2732 }
2733
2734 case NT_TRANSACT_SET_SECURITY_DESC:
2735 {
2736 START_PROFILE(NT_transact_set_security_desc);
2737 call_nt_transact_set_security_desc(
2738 conn, req,
2739 &state->setup, state->setup_count,
2740 &state->param, state->total_param,
2741 &state->data, state->total_data,
2742 state->max_data_return);
2743 END_PROFILE(NT_transact_set_security_desc);
2744 break;
2745 }
2746
2747 case NT_TRANSACT_NOTIFY_CHANGE:
2748 {
2749 START_PROFILE(NT_transact_notify_change);
2750 call_nt_transact_notify_change(
2751 conn, req,
2752 &state->setup, state->setup_count,
2753 &state->param, state->total_param,
2754 &state->data, state->total_data,
2755 state->max_data_return,
2756 state->max_param_return);
2757 END_PROFILE(NT_transact_notify_change);
2758 break;
2759 }
2760
2761 case NT_TRANSACT_RENAME:
2762 {
2763 START_PROFILE(NT_transact_rename);
2764 call_nt_transact_rename(
2765 conn, req,
2766 &state->setup, state->setup_count,
2767 &state->param, state->total_param,
2768 &state->data, state->total_data,
2769 state->max_data_return);
2770 END_PROFILE(NT_transact_rename);
2771 break;
2772 }
2773
2774 case NT_TRANSACT_QUERY_SECURITY_DESC:
2775 {
2776 START_PROFILE(NT_transact_query_security_desc);
2777 call_nt_transact_query_security_desc(
2778 conn, req,
2779 &state->setup, state->setup_count,
2780 &state->param, state->total_param,
2781 &state->data, state->total_data,
2782 state->max_data_return);
2783 END_PROFILE(NT_transact_query_security_desc);
2784 break;
2785 }
2786
2787 #ifdef HAVE_SYS_QUOTAS
2788 case NT_TRANSACT_GET_USER_QUOTA:
2789 {
2790 START_PROFILE(NT_transact_get_user_quota);
2791 call_nt_transact_get_user_quota(
2792 conn, req,
2793 &state->setup, state->setup_count,
2794 &state->param, state->total_param,
2795 &state->data, state->total_data,
2796 state->max_data_return);
2797 END_PROFILE(NT_transact_get_user_quota);
2798 break;
2799 }
2800
2801 case NT_TRANSACT_SET_USER_QUOTA:
2802 {
2803 START_PROFILE(NT_transact_set_user_quota);
2804 call_nt_transact_set_user_quota(
2805 conn, req,
2806 &state->setup, state->setup_count,
2807 &state->param, state->total_param,
2808 &state->data, state->total_data,
2809 state->max_data_return);
2810 END_PROFILE(NT_transact_set_user_quota);
2811 break;
2812 }
2813 #endif /* HAVE_SYS_QUOTAS */
2814
2815 default:
2816 /* Error in request */
2817 DEBUG(0,("handle_nttrans: Unknown request %d in "
2818 "nttrans call\n", state->call));
2819 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2820 return;
2821 }
2822 return;
2823 }
2824
2825 /****************************************************************************
2826 Reply to a SMBNTtrans.
2827 ****************************************************************************/
2828
2829 void reply_nttrans(struct smb_request *req)
2830 {
2831 connection_struct *conn = req->conn;
2832 uint32_t pscnt;
2833 uint32_t psoff;
2834 uint32_t dscnt;
2835 uint32_t dsoff;
2836 uint16 function_code;
2837 NTSTATUS result;
2838 struct trans_state *state;
2839
2840 START_PROFILE(SMBnttrans);
2841
2842 if (req->wct < 19) {
2843 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2844 END_PROFILE(SMBnttrans);
2845 return;
2846 }
2847
2848 pscnt = IVAL(req->vwv+9, 1);
2849 psoff = IVAL(req->vwv+11, 1);
2850 dscnt = IVAL(req->vwv+13, 1);
2851 dsoff = IVAL(req->vwv+15, 1);
2852 function_code = SVAL(req->vwv+18, 0);
2853
2854 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2855 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2856 END_PROFILE(SMBnttrans);
2857 return;
2858 }
2859
2860 result = allow_new_trans(conn->pending_trans, req->mid);
2861 if (!NT_STATUS_IS_OK(result)) {
2862 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2863 reply_nterror(req, result);
2864 END_PROFILE(SMBnttrans);
2865 return;
2866 }
2867
2868 if ((state = TALLOC_P(conn, struct trans_state)) == NULL) {
2869 reply_nterror(req, NT_STATUS_NO_MEMORY);
2870 END_PROFILE(SMBnttrans);
2871 return;
2872 }
2873
2874 state->cmd = SMBnttrans;
2875
2876 state->mid = req->mid;
2877 state->vuid = req->vuid;
2878 state->total_data = IVAL(req->vwv+3, 1);
2879 state->data = NULL;
2880 state->total_param = IVAL(req->vwv+1, 1);
2881 state->param = NULL;
2882 state->max_data_return = IVAL(req->vwv+7, 1);
2883 state->max_param_return = IVAL(req->vwv+5, 1);
2884
2885 /* setup count is in *words* */
2886 state->setup_count = 2*CVAL(req->vwv+17, 1);
2887 state->setup = NULL;
2888 state->call = function_code;
2889
2890 DEBUG(10, ("num_setup=%u, "
2891 "param_total=%u, this_param=%u, max_param=%u, "
2892 "data_total=%u, this_data=%u, max_data=%u, "
2893 "param_offset=%u, data_offset=%u\n",
2894 (unsigned)state->setup_count,
2895 (unsigned)state->total_param, (unsigned)pscnt,
2896 (unsigned)state->max_param_return,
2897 (unsigned)state->total_data, (unsigned)dscnt,
2898 (unsigned)state->max_data_return,
2899 (unsigned)psoff, (unsigned)dsoff));
2900
2901 /*
2902 * All nttrans messages we handle have smb_wct == 19 +
2903 * state->setup_count. Ensure this is so as a sanity check.
2904 */
2905
2906 if(req->wct != 19 + (state->setup_count/2)) {
2907 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2908 req->wct, 19 + (state->setup_count/2)));
2909 goto bad_param;
2910 }
2911
2912 /* Don't allow more than 128mb for each value. */
2913 if ((state->total_data > (1024*1024*128)) ||
2914 (state->total_param > (1024*1024*128))) {
2915 reply_nterror(req, NT_STATUS_NO_MEMORY);
2916 END_PROFILE(SMBnttrans);
2917 return;
2918 }
2919
2920 if ((dscnt > state->total_data) || (pscnt > state->total_param))
2921 goto bad_param;
2922
2923 if (state->total_data) {
2924
2925 if (trans_oob(state->total_data, 0, dscnt)
2926 || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
2927 goto bad_param;
2928 }
2929
2930 /* Can't use talloc here, the core routines do realloc on the
2931 * params and data. */
2932 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2933 DEBUG(0,("reply_nttrans: data malloc fail for %u "
2934 "bytes !\n", (unsigned int)state->total_data));
2935 TALLOC_FREE(state);
2936 reply_nterror(req, NT_STATUS_NO_MEMORY);
2937 END_PROFILE(SMBnttrans);
2938 return;
2939 }
2940
2941 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2942 }
2943
2944 if (state->total_param) {
2945
2946 if (trans_oob(state->total_param, 0, pscnt)
2947 || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
2948 goto bad_param;
2949 }
2950
2951 /* Can't use talloc here, the core routines do realloc on the
2952 * params and data. */
2953 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2954 DEBUG(0,("reply_nttrans: param malloc fail for %u "
2955 "bytes !\n", (unsigned int)state->total_param));
2956 SAFE_FREE(state->data);
2957 TALLOC_FREE(state);
2958 reply_nterror(req, NT_STATUS_NO_MEMORY);
2959 END_PROFILE(SMBnttrans);
2960 return;
2961 }
2962
2963 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2964 }
2965
2966 state->received_data = dscnt;
2967 state->received_param = pscnt;
2968
2969 if(state->setup_count > 0) {
2970 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2971 state->setup_count));
2972
2973 /*
2974 * No overflow possible here, state->setup_count is an
2975 * unsigned int, being filled by a single byte from
2976 * CVAL(req->vwv+13, 0) above. The cast in the comparison
2977 * below is not necessary, it's here to clarify things. The
2978 * validity of req->vwv and req->wct has been checked in
2979 * init_smb_request already.
2980 */
2981 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
2982 goto bad_param;
2983 }
2984
2985 state->setup = (uint16 *)TALLOC(state, state->setup_count);
2986 if (state->setup == NULL) {
2987 DEBUG(0,("reply_nttrans : Out of memory\n"));
2988 SAFE_FREE(state->data);
2989 SAFE_FREE(state->param);
2990 TALLOC_FREE(state);
2991 reply_nterror(req, NT_STATUS_NO_MEMORY);
2992 END_PROFILE(SMBnttrans);
2993 return;
2994 }
2995
2996 memcpy(state->setup, req->vwv+19, state->setup_count);
2997 dump_data(10, (uint8 *)state->setup, state->setup_count);
2998 }
2999
3000 if ((state->received_data == state->total_data) &&
3001 (state->received_param == state->total_param)) {
3002 handle_nttrans(conn, state, req);
3003 SAFE_FREE(state->param);
3004 SAFE_FREE(state->data);
3005 TALLOC_FREE(state);
3006 END_PROFILE(SMBnttrans);
3007 return;
3008 }
3009
3010 DLIST_ADD(conn->pending_trans, state);
3011
3012 /* We need to send an interim response then receive the rest
3013 of the parameter/data bytes */
3014 reply_outbuf(req, 0, 0);
3015 show_msg((char *)req->outbuf);
3016 END_PROFILE(SMBnttrans);
3017 return;
3018
3019 bad_param:
3020
3021 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
3022 SAFE_FREE(state->data);
3023 SAFE_FREE(state->param);
3024 TALLOC_FREE(state);
3025 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3026 END_PROFILE(SMBnttrans);
3027 return;
3028 }
3029
3030 /****************************************************************************
3031 Reply to a SMBnttranss
3032 ****************************************************************************/
3033
3034 void reply_nttranss(struct smb_request *req)
3035 {
3036 connection_struct *conn = req->conn;
3037 uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
3038 struct trans_state *state;
3039
3040 START_PROFILE(SMBnttranss);
3041
3042 show_msg((char *)req->inbuf);
3043
3044 if (req->wct < 18) {
3045 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3046 END_PROFILE(SMBnttranss);
3047 return;
3048 }
3049
3050 for (state = conn->pending_trans; state != NULL;
3051 state = state->next) {
3052 if (state->mid == req->mid) {
3053 break;
3054 }
3055 }
3056
3057 if ((state == NULL) || (state->cmd != SMBnttrans)) {
3058 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3059 END_PROFILE(SMBnttranss);
3060 return;
3061 }
3062
3063 /* Revise state->total_param and state->total_data in case they have
3064 changed downwards */
3065 if (IVAL(req->vwv+1, 1) < state->total_param) {
3066 state->total_param = IVAL(req->vwv+1, 1);
3067 }
3068 if (IVAL(req->vwv+3, 1) < state->total_data) {
3069 state->total_data = IVAL(req->vwv+3, 1);
3070 }
3071
3072 pcnt = IVAL(req->vwv+5, 1);
3073 poff = IVAL(req->vwv+7, 1);
3074 pdisp = IVAL(req->vwv+9, 1);
3075
3076 dcnt = IVAL(req->vwv+11, 1);
3077 doff = IVAL(req->vwv+13, 1);
3078 ddisp = IVAL(req->vwv+15, 1);
3079
3080 state->received_param += pcnt;
3081 state->received_data += dcnt;
3082
3083 if ((state->received_data > state->total_data) ||
3084 (state->received_param > state->total_param))
3085 goto bad_param;
3086
3087 if (pcnt) {
3088 if (trans_oob(state->total_param, pdisp, pcnt)
3089 || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
3090 goto bad_param;
3091 }
3092 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
3093 }
3094
3095 if (dcnt) {
3096 if (trans_oob(state->total_data, ddisp, dcnt)
3097 || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
3098 goto bad_param;
3099 }
3100 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
3101 }
3102
3103 if ((state->received_param < state->total_param) ||
3104 (state->received_data < state->total_data)) {
3105 END_PROFILE(SMBnttranss);
3106 return;
3107 }
3108
3109 handle_nttrans(conn, state, req);
3110
3111 DLIST_REMOVE(conn->pending_trans, state);
3112 SAFE_FREE(state->data);
3113 SAFE_FREE(state->param);
3114 TALLOC_FREE(state);
3115 END_PROFILE(SMBnttranss);
3116 return;
3117
3118 bad_param:
3119
3120 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
3121 DLIST_REMOVE(conn->pending_trans, state);
3122 SAFE_FREE(state->data);
3123 SAFE_FREE(state->param);
3124 TALLOC_FREE(state);
3125 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3126 END_PROFILE(SMBnttranss);
3127 return;
3128 }
Samba GIT mirror