?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
libsmbconf: Document smbconf_transaction_cancel().
[Samba.git] / source3 / smbd / nttrans.c
blob973bc14e537d45cfa193d7d9b58b422ad4dfee2a
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 "ntioctl.h"
31 #include "smbprofile.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 void send_nt_replies(connection_struct *conn,
57 struct smb_request *req, NTSTATUS nt_error,
58 char *params, int paramsize,
59 char *pdata, int datasize)
60 {
61 int data_to_send = datasize;
62 int params_to_send = paramsize;
63 int useable_space;
64 char *pp = params;
65 char *pd = pdata;
66 int params_sent_thistime, data_sent_thistime, total_sent_thistime;
67 int alignment_offset = 1;
68 int data_alignment_offset = 0;
69 struct smbd_server_connection *sconn = req->sconn;
70 int max_send = sconn->smb1.sessions.max_send;
71
72 /*
73 * If there genuinely are no parameters or data to send just send
74 * the empty packet.
75 */
76
77 if(params_to_send == 0 && data_to_send == 0) {
78 reply_outbuf(req, 18, 0);
79 if (NT_STATUS_V(nt_error)) {
80 error_packet_set((char *)req->outbuf,
81 0, 0, nt_error,
82 __LINE__,__FILE__);
83 }
84 show_msg((char *)req->outbuf);
85 if (!srv_send_smb(sconn,
86 (char *)req->outbuf,
87 true, req->seqnum+1,
88 IS_CONN_ENCRYPTED(conn),
89 &req->pcd)) {
90 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
91 }
92 TALLOC_FREE(req->outbuf);
93 return;
94 }
95
96 /*
97 * When sending params and data ensure that both are nicely aligned.
98 * Only do this alignment when there is also data to send - else
99 * can cause NT redirector problems.
100 */
101
102 if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
103 data_alignment_offset = 4 - (params_to_send % 4);
104 }
105
106 /*
107 * Space is bufsize minus Netbios over TCP header minus SMB header.
108 * The alignment_offset is to align the param bytes on a four byte
109 * boundary (2 bytes for data len, one byte pad).
110 * NT needs this to work correctly.
111 */
112
113 useable_space = max_send - (smb_size
114 + 2 * 18 /* wct */
115 + alignment_offset
116 + data_alignment_offset);
117
118 if (useable_space < 0) {
119 char *msg = talloc_asprintf(
120 talloc_tos(),
121 "send_nt_replies failed sanity useable_space = %d!!!",
122 useable_space);
123 DEBUG(0, ("%s\n", msg));
124 exit_server_cleanly(msg);
125 }
126
127 while (params_to_send || data_to_send) {
128
129 /*
130 * Calculate whether we will totally or partially fill this packet.
131 */
132
133 total_sent_thistime = params_to_send + data_to_send;
134
135 /*
136 * We can never send more than useable_space.
137 */
138
139 total_sent_thistime = MIN(total_sent_thistime, useable_space);
140
141 reply_outbuf(req, 18,
142 total_sent_thistime + alignment_offset
143 + data_alignment_offset);
144
145 /*
146 * We might have had SMBnttranss in req->inbuf, fix that.
147 */
148 SCVAL(req->outbuf, smb_com, SMBnttrans);
149
150 /*
151 * Set total params and data to be sent.
152 */
153
154 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
155 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
156
157 /*
158 * Calculate how many parameters and data we can fit into
159 * this packet. Parameters get precedence.
160 */
161
162 params_sent_thistime = MIN(params_to_send,useable_space);
163 data_sent_thistime = useable_space - params_sent_thistime;
164 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
165
166 SIVAL(req->outbuf, smb_ntr_ParameterCount,
167 params_sent_thistime);
168
169 if(params_sent_thistime == 0) {
170 SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
171 SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
172 } else {
173 /*
174 * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
175 * parameter bytes, however the first 4 bytes of outbuf are
176 * the Netbios over TCP header. Thus use smb_base() to subtract
177 * them from the calculation.
178 */
179
180 SIVAL(req->outbuf,smb_ntr_ParameterOffset,
181 ((smb_buf(req->outbuf)+alignment_offset)
182 - smb_base(req->outbuf)));
183 /*
184 * Absolute displacement of param bytes sent in this packet.
185 */
186
187 SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
188 pp - params);
189 }
190
191 /*
192 * Deal with the data portion.
193 */
194
195 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
196
197 if(data_sent_thistime == 0) {
198 SIVAL(req->outbuf,smb_ntr_DataOffset,0);
199 SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
200 } else {
201 /*
202 * The offset of the data bytes is the offset of the
203 * parameter bytes plus the number of parameters being sent this time.
204 */
205
206 SIVAL(req->outbuf, smb_ntr_DataOffset,
207 ((smb_buf(req->outbuf)+alignment_offset) -
208 smb_base(req->outbuf))
209 + params_sent_thistime + data_alignment_offset);
210 SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
211 }
212
213 /*
214 * Copy the param bytes into the packet.
215 */
216
217 if(params_sent_thistime) {
218 if (alignment_offset != 0) {
219 memset(smb_buf(req->outbuf), 0,
220 alignment_offset);
221 }
222 memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
223 params_sent_thistime);
224 }
225
226 /*
227 * Copy in the data bytes
228 */
229
230 if(data_sent_thistime) {
231 if (data_alignment_offset != 0) {
232 memset((smb_buf(req->outbuf)+alignment_offset+
233 params_sent_thistime), 0,
234 data_alignment_offset);
235 }
236 memcpy(smb_buf(req->outbuf)+alignment_offset
237 +params_sent_thistime+data_alignment_offset,
238 pd,data_sent_thistime);
239 }
240
241 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
242 params_sent_thistime, data_sent_thistime, useable_space));
243 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
244 params_to_send, data_to_send, paramsize, datasize));
245
246 if (NT_STATUS_V(nt_error)) {
247 error_packet_set((char *)req->outbuf,
248 0, 0, nt_error,
249 __LINE__,__FILE__);
250 }
251
252 /* Send the packet */
253 show_msg((char *)req->outbuf);
254 if (!srv_send_smb(sconn,
255 (char *)req->outbuf,
256 true, req->seqnum+1,
257 IS_CONN_ENCRYPTED(conn),
258 &req->pcd)) {
259 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
260 }
261
262 TALLOC_FREE(req->outbuf);
263
264 pp += params_sent_thistime;
265 pd += data_sent_thistime;
266
267 params_to_send -= params_sent_thistime;
268 data_to_send -= data_sent_thistime;
269
270 /*
271 * Sanity check
272 */
273
274 if(params_to_send < 0 || data_to_send < 0) {
275 DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
276 params_to_send, data_to_send));
277 exit_server_cleanly("send_nt_replies: internal error");
278 }
279 }
280 }
281
282 /****************************************************************************
283 Reply to an NT create and X call on a pipe
284 ****************************************************************************/
285
286 static void nt_open_pipe(char *fname, connection_struct *conn,
287 struct smb_request *req, int *ppnum)
288 {
289 files_struct *fsp;
290 NTSTATUS status;
291
292 DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
293
294 /* Strip \\ off the name. */
295 fname++;
296
297 status = open_np_file(req, fname, &fsp);
298 if (!NT_STATUS_IS_OK(status)) {
299 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
300 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
301 ERRDOS, ERRbadpipe);
302 return;
303 }
304 reply_nterror(req, status);
305 return;
306 }
307
308 *ppnum = fsp->fnum;
309 return;
310 }
311
312 /****************************************************************************
313 Reply to an NT create and X call for pipes.
314 ****************************************************************************/
315
316 static void do_ntcreate_pipe_open(connection_struct *conn,
317 struct smb_request *req)
318 {
319 char *fname = NULL;
320 int pnum = -1;
321 char *p = NULL;
322 uint32 flags = IVAL(req->vwv+3, 1);
323 TALLOC_CTX *ctx = talloc_tos();
324
325 srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
326
327 if (!fname) {
328 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
329 ERRDOS, ERRbadpipe);
330 return;
331 }
332 nt_open_pipe(fname, conn, req, &pnum);
333
334 if (req->outbuf) {
335 /* error reply */
336 return;
337 }
338
339 /*
340 * Deal with pipe return.
341 */
342
343 if (flags & EXTENDED_RESPONSE_REQUIRED) {
344 /* This is very strange. We
345 * return 50 words, but only set
346 * the wcnt to 42 ? It's definately
347 * what happens on the wire....
348 */
349 reply_outbuf(req, 50, 0);
350 SCVAL(req->outbuf,smb_wct,42);
351 } else {
352 reply_outbuf(req, 34, 0);
353 }
354
355 p = (char *)req->outbuf + smb_vwv2;
356 p++;
357 SSVAL(p,0,pnum);
358 p += 2;
359 SIVAL(p,0,FILE_WAS_OPENED);
360 p += 4;
361 p += 32;
362 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
363 p += 20;
364 /* File type. */
365 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
366 /* Device state. */
367 SSVAL(p,2, 0x5FF); /* ? */
368 p += 4;
369
370 if (flags & EXTENDED_RESPONSE_REQUIRED) {
371 p += 25;
372 SIVAL(p,0,FILE_GENERIC_ALL);
373 /*
374 * For pipes W2K3 seems to return
375 * 0x12019B next.
376 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
377 */
378 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
379 }
380
381 DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
382
383 chain_reply(req);
384 }
385
386 struct case_semantics_state {
387 connection_struct *conn;
388 bool case_sensitive;
389 bool case_preserve;
390 bool short_case_preserve;
391 };
392
393 /****************************************************************************
394 Restore case semantics.
395 ****************************************************************************/
396
397 static int restore_case_semantics(struct case_semantics_state *state)
398 {
399 state->conn->case_sensitive = state->case_sensitive;
400 state->conn->case_preserve = state->case_preserve;
401 state->conn->short_case_preserve = state->short_case_preserve;
402 return 0;
403 }
404
405 /****************************************************************************
406 Save case semantics.
407 ****************************************************************************/
408
409 static struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx,
410 connection_struct *conn)
411 {
412 struct case_semantics_state *result;
413
414 if (!(result = talloc(mem_ctx, struct case_semantics_state))) {
415 return NULL;
416 }
417
418 result->conn = conn;
419 result->case_sensitive = conn->case_sensitive;
420 result->case_preserve = conn->case_preserve;
421 result->short_case_preserve = conn->short_case_preserve;
422
423 /* Set to POSIX. */
424 conn->case_sensitive = True;
425 conn->case_preserve = True;
426 conn->short_case_preserve = True;
427
428 talloc_set_destructor(result, restore_case_semantics);
429
430 return result;
431 }
432
433 /****************************************************************************
434 Reply to an NT create and X call.
435 ****************************************************************************/
436
437 void reply_ntcreate_and_X(struct smb_request *req)
438 {
439 connection_struct *conn = req->conn;
440 struct smb_filename *smb_fname = NULL;
441 char *fname = NULL;
442 uint32 flags;
443 uint32 access_mask;
444 uint32 file_attributes;
445 uint32 share_access;
446 uint32 create_disposition;
447 uint32 create_options;
448 uint16 root_dir_fid;
449 uint64_t allocation_size;
450 /* Breakout the oplock request bits so we can set the
451 reply bits separately. */
452 uint32 fattr=0;
453 SMB_OFF_T file_len = 0;
454 int info = 0;
455 files_struct *fsp = NULL;
456 char *p = NULL;
457 struct timespec create_timespec;
458 struct timespec c_timespec;
459 struct timespec a_timespec;
460 struct timespec m_timespec;
461 struct timespec write_time_ts;
462 NTSTATUS status;
463 int oplock_request;
464 uint8_t oplock_granted = NO_OPLOCK_RETURN;
465 struct case_semantics_state *case_state = NULL;
466 TALLOC_CTX *ctx = talloc_tos();
467
468 START_PROFILE(SMBntcreateX);
469
470 if (req->wct < 24) {
471 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
472 goto out;
473 }
474
475 flags = IVAL(req->vwv+3, 1);
476 access_mask = IVAL(req->vwv+7, 1);
477 file_attributes = IVAL(req->vwv+13, 1);
478 share_access = IVAL(req->vwv+15, 1);
479 create_disposition = IVAL(req->vwv+17, 1);
480 create_options = IVAL(req->vwv+19, 1);
481 root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
482
483 allocation_size = BVAL(req->vwv+9, 1);
484
485 srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
486 STR_TERMINATE, &status);
487
488 if (!NT_STATUS_IS_OK(status)) {
489 reply_nterror(req, status);
490 goto out;
491 }
492
493 DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
494 "file_attributes = 0x%x, share_access = 0x%x, "
495 "create_disposition = 0x%x create_options = 0x%x "
496 "root_dir_fid = 0x%x, fname = %s\n",
497 (unsigned int)flags,
498 (unsigned int)access_mask,
499 (unsigned int)file_attributes,
500 (unsigned int)share_access,
501 (unsigned int)create_disposition,
502 (unsigned int)create_options,
503 (unsigned int)root_dir_fid,
504 fname));
505
506 /*
507 * we need to remove ignored bits when they come directly from the client
508 * because we reuse some of them for internal stuff
509 */
510 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
511
512 /*
513 * If it's an IPC, use the pipe handler.
514 */
515
516 if (IS_IPC(conn)) {
517 if (lp_nt_pipe_support()) {
518 do_ntcreate_pipe_open(conn, req);
519 goto out;
520 }
521 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
522 goto out;
523 }
524
525 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
526 if (oplock_request) {
527 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
528 ? BATCH_OPLOCK : 0;
529 }
530
531 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
532 case_state = set_posix_case_semantics(ctx, conn);
533 if (!case_state) {
534 reply_nterror(req, NT_STATUS_NO_MEMORY);
535 goto out;
536 }
537 }
538
539 status = filename_convert(ctx,
540 conn,
541 req->flags2 & FLAGS2_DFS_PATHNAMES,
542 fname,
543 0,
544 NULL,
545 &smb_fname);
546
547 TALLOC_FREE(case_state);
548
549 if (!NT_STATUS_IS_OK(status)) {
550 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
551 reply_botherror(req,
552 NT_STATUS_PATH_NOT_COVERED,
553 ERRSRV, ERRbadpath);
554 goto out;
555 }
556 reply_nterror(req, status);
557 goto out;
558 }
559
560 /*
561 * Bug #6898 - clients using Windows opens should
562 * never be able to set this attribute into the
563 * VFS.
564 */
565 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
566
567 status = SMB_VFS_CREATE_FILE(
568 conn, /* conn */
569 req, /* req */
570 root_dir_fid, /* root_dir_fid */
571 smb_fname, /* fname */
572 access_mask, /* access_mask */
573 share_access, /* share_access */
574 create_disposition, /* create_disposition*/
575 create_options, /* create_options */
576 file_attributes, /* file_attributes */
577 oplock_request, /* oplock_request */
578 allocation_size, /* allocation_size */
579 0, /* private_flags */
580 NULL, /* sd */
581 NULL, /* ea_list */
582 &fsp, /* result */
583 &info); /* pinfo */
584
585 if (!NT_STATUS_IS_OK(status)) {
586 if (open_was_deferred(req->mid)) {
587 /* We have re-scheduled this call, no error. */
588 goto out;
589 }
590 reply_openerror(req, status);
591 goto out;
592 }
593
594 /* Ensure we're pointing at the correct stat struct. */
595 TALLOC_FREE(smb_fname);
596 smb_fname = fsp->fsp_name;
597
598 /*
599 * If the caller set the extended oplock request bit
600 * and we granted one (by whatever means) - set the
601 * correct bit for extended oplock reply.
602 */
603
604 if (oplock_request &&
605 (lp_fake_oplocks(SNUM(conn))
606 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
607
608 /*
609 * Exclusive oplock granted
610 */
611
612 if (flags & REQUEST_BATCH_OPLOCK) {
613 oplock_granted = BATCH_OPLOCK_RETURN;
614 } else {
615 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
616 }
617 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
618 oplock_granted = LEVEL_II_OPLOCK_RETURN;
619 } else {
620 oplock_granted = NO_OPLOCK_RETURN;
621 }
622
623 file_len = smb_fname->st.st_ex_size;
624
625 if (flags & EXTENDED_RESPONSE_REQUIRED) {
626 /* This is very strange. We
627 * return 50 words, but only set
628 * the wcnt to 42 ? It's definately
629 * what happens on the wire....
630 */
631 reply_outbuf(req, 50, 0);
632 SCVAL(req->outbuf,smb_wct,42);
633 } else {
634 reply_outbuf(req, 34, 0);
635 }
636
637 p = (char *)req->outbuf + smb_vwv2;
638
639 SCVAL(p, 0, oplock_granted);
640
641 p++;
642 SSVAL(p,0,fsp->fnum);
643 p += 2;
644 if ((create_disposition == FILE_SUPERSEDE)
645 && (info == FILE_WAS_OVERWRITTEN)) {
646 SIVAL(p,0,FILE_WAS_SUPERSEDED);
647 } else {
648 SIVAL(p,0,info);
649 }
650 p += 4;
651
652 fattr = dos_mode(conn, smb_fname);
653 if (fattr == 0) {
654 fattr = FILE_ATTRIBUTE_NORMAL;
655 }
656
657 /* Deal with other possible opens having a modified
658 write time. JRA. */
659 ZERO_STRUCT(write_time_ts);
660 get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
661 if (!null_timespec(write_time_ts)) {
662 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
663 }
664
665 /* Create time. */
666 create_timespec = get_create_timespec(conn, fsp, smb_fname);
667 a_timespec = smb_fname->st.st_ex_atime;
668 m_timespec = smb_fname->st.st_ex_mtime;
669 c_timespec = get_change_timespec(conn, fsp, smb_fname);
670
671 if (lp_dos_filetime_resolution(SNUM(conn))) {
672 dos_filetime_timespec(&create_timespec);
673 dos_filetime_timespec(&a_timespec);
674 dos_filetime_timespec(&m_timespec);
675 dos_filetime_timespec(&c_timespec);
676 }
677
678 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
679 p += 8;
680 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
681 p += 8;
682 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
683 p += 8;
684 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
685 p += 8;
686 SIVAL(p,0,fattr); /* File Attributes. */
687 p += 4;
688 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
689 p += 8;
690 SOFF_T(p,0,file_len);
691 p += 8;
692 if (flags & EXTENDED_RESPONSE_REQUIRED) {
693 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
694 size_t num_names = 0;
695 unsigned int num_streams;
696 struct stream_struct *streams = NULL;
697
698 /* Do we have any EA's ? */
699 status = get_ea_names_from_file(ctx, conn, fsp,
700 smb_fname->base_name, NULL, &num_names);
701 if (NT_STATUS_IS_OK(status) && num_names) {
702 file_status &= ~NO_EAS;
703 }
704 status = SMB_VFS_STREAMINFO(conn, NULL, smb_fname->base_name, ctx,
705 &num_streams, &streams);
706 /* There is always one stream, ::$DATA. */
707 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
708 file_status &= ~NO_SUBSTREAMS;
709 }
710 TALLOC_FREE(streams);
711 SSVAL(p,2,file_status);
712 }
713 p += 4;
714 SCVAL(p,0,fsp->is_directory ? 1 : 0);
715
716 if (flags & EXTENDED_RESPONSE_REQUIRED) {
717 uint32 perms = 0;
718 p += 25;
719 if (fsp->is_directory ||
720 can_write_to_file(conn, smb_fname)) {
721 perms = FILE_GENERIC_ALL;
722 } else {
723 perms = FILE_GENERIC_READ|FILE_EXECUTE;
724 }
725 SIVAL(p,0,perms);
726 }
727
728 DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
729 fsp->fnum, smb_fname_str_dbg(smb_fname)));
730
731 chain_reply(req);
732 out:
733 END_PROFILE(SMBntcreateX);
734 return;
735 }
736
737 /****************************************************************************
738 Reply to a NT_TRANSACT_CREATE call to open a pipe.
739 ****************************************************************************/
740
741 static void do_nt_transact_create_pipe(connection_struct *conn,
742 struct smb_request *req,
743 uint16 **ppsetup, uint32 setup_count,
744 char **ppparams, uint32 parameter_count,
745 char **ppdata, uint32 data_count)
746 {
747 char *fname = NULL;
748 char *params = *ppparams;
749 int pnum = -1;
750 char *p = NULL;
751 NTSTATUS status;
752 size_t param_len;
753 uint32 flags;
754 TALLOC_CTX *ctx = talloc_tos();
755
756 /*
757 * Ensure minimum number of parameters sent.
758 */
759
760 if(parameter_count < 54) {
761 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
762 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
763 return;
764 }
765
766 flags = IVAL(params,0);
767
768 srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
769 parameter_count-53, STR_TERMINATE,
770 &status);
771 if (!NT_STATUS_IS_OK(status)) {
772 reply_nterror(req, status);
773 return;
774 }
775
776 nt_open_pipe(fname, conn, req, &pnum);
777
778 if (req->outbuf) {
779 /* Error return */
780 return;
781 }
782
783 /* Realloc the size of parameters and data we will return */
784 if (flags & EXTENDED_RESPONSE_REQUIRED) {
785 /* Extended response is 32 more byyes. */
786 param_len = 101;
787 } else {
788 param_len = 69;
789 }
790 params = nttrans_realloc(ppparams, param_len);
791 if(params == NULL) {
792 reply_nterror(req, NT_STATUS_NO_MEMORY);
793 return;
794 }
795
796 p = params;
797 SCVAL(p,0,NO_OPLOCK_RETURN);
798
799 p += 2;
800 SSVAL(p,0,pnum);
801 p += 2;
802 SIVAL(p,0,FILE_WAS_OPENED);
803 p += 8;
804
805 p += 32;
806 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
807 p += 20;
808 /* File type. */
809 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
810 /* Device state. */
811 SSVAL(p,2, 0x5FF); /* ? */
812 p += 4;
813
814 if (flags & EXTENDED_RESPONSE_REQUIRED) {
815 p += 25;
816 SIVAL(p,0,FILE_GENERIC_ALL);
817 /*
818 * For pipes W2K3 seems to return
819 * 0x12019B next.
820 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
821 */
822 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
823 }
824
825 DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
826
827 /* Send the required number of replies */
828 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
829
830 return;
831 }
832
833 /****************************************************************************
834 Internal fn to set security descriptors.
835 ****************************************************************************/
836
837 NTSTATUS set_sd(files_struct *fsp, uint8_t *data, uint32_t sd_len,
838 uint32_t security_info_sent)
839 {
840 struct security_descriptor *psd = NULL;
841 NTSTATUS status;
842
843 if (sd_len == 0) {
844 return NT_STATUS_INVALID_PARAMETER;
845 }
846
847 if (!CAN_WRITE(fsp->conn)) {
848 return NT_STATUS_ACCESS_DENIED;
849 }
850
851 if (!lp_nt_acl_support(SNUM(fsp->conn))) {
852 return NT_STATUS_OK;
853 }
854
855 status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
856
857 if (!NT_STATUS_IS_OK(status)) {
858 return status;
859 }
860
861 if (psd->owner_sid == NULL) {
862 security_info_sent &= ~SECINFO_OWNER;
863 }
864 if (psd->group_sid == NULL) {
865 security_info_sent &= ~SECINFO_GROUP;
866 }
867
868 /* Ensure we have at least one thing set. */
869 if ((security_info_sent & (SECINFO_OWNER|SECINFO_GROUP|SECINFO_DACL|SECINFO_SACL)) == 0) {
870 return NT_STATUS_INVALID_PARAMETER;
871 }
872
873 /* Ensure we have the rights to do this. */
874 if (security_info_sent & SECINFO_OWNER) {
875 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
876 return NT_STATUS_ACCESS_DENIED;
877 }
878 }
879
880 if (security_info_sent & SECINFO_GROUP) {
881 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
882 return NT_STATUS_ACCESS_DENIED;
883 }
884 }
885
886 if (security_info_sent & SECINFO_DACL) {
887 if (!(fsp->access_mask & SEC_STD_WRITE_DAC)) {
888 return NT_STATUS_ACCESS_DENIED;
889 }
890 /* Convert all the generic bits. */
891 if (psd->dacl) {
892 security_acl_map_generic(psd->dacl, &file_generic_mapping);
893 }
894 }
895
896 if (security_info_sent & SECINFO_SACL) {
897 if (!(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
898 return NT_STATUS_ACCESS_DENIED;
899 }
900 /* Convert all the generic bits. */
901 if (psd->sacl) {
902 security_acl_map_generic(psd->sacl, &file_generic_mapping);
903 }
904 }
905
906 if (DEBUGLEVEL >= 10) {
907 DEBUG(10,("set_sd for file %s\n", fsp_str_dbg(fsp)));
908 NDR_PRINT_DEBUG(security_descriptor, psd);
909 }
910
911 status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
912
913 TALLOC_FREE(psd);
914
915 return status;
916 }
917
918 /****************************************************************************
919 Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
920 ****************************************************************************/
921
922 struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
923 {
924 struct ea_list *ea_list_head = NULL;
925 size_t offset = 0;
926
927 if (data_size < 4) {
928 return NULL;
929 }
930
931 while (offset + 4 <= data_size) {
932 size_t next_offset = IVAL(pdata,offset);
933 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
934
935 if (!eal) {
936 return NULL;
937 }
938
939 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
940 if (next_offset == 0) {
941 break;
942 }
943 offset += next_offset;
944 }
945
946 return ea_list_head;
947 }
948
949 /****************************************************************************
950 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
951 ****************************************************************************/
952
953 static void call_nt_transact_create(connection_struct *conn,
954 struct smb_request *req,
955 uint16 **ppsetup, uint32 setup_count,
956 char **ppparams, uint32 parameter_count,
957 char **ppdata, uint32 data_count,
958 uint32 max_data_count)
959 {
960 struct smb_filename *smb_fname = NULL;
961 char *fname = NULL;
962 char *params = *ppparams;
963 char *data = *ppdata;
964 /* Breakout the oplock request bits so we can set the reply bits separately. */
965 uint32 fattr=0;
966 SMB_OFF_T file_len = 0;
967 int info = 0;
968 files_struct *fsp = NULL;
969 char *p = NULL;
970 uint32 flags;
971 uint32 access_mask;
972 uint32 file_attributes;
973 uint32 share_access;
974 uint32 create_disposition;
975 uint32 create_options;
976 uint32 sd_len;
977 struct security_descriptor *sd = NULL;
978 uint32 ea_len;
979 uint16 root_dir_fid;
980 struct timespec create_timespec;
981 struct timespec c_timespec;
982 struct timespec a_timespec;
983 struct timespec m_timespec;
984 struct timespec write_time_ts;
985 struct ea_list *ea_list = NULL;
986 NTSTATUS status;
987 size_t param_len;
988 uint64_t allocation_size;
989 int oplock_request;
990 uint8_t oplock_granted;
991 struct case_semantics_state *case_state = NULL;
992 TALLOC_CTX *ctx = talloc_tos();
993
994 DEBUG(5,("call_nt_transact_create\n"));
995
996 /*
997 * If it's an IPC, use the pipe handler.
998 */
999
1000 if (IS_IPC(conn)) {
1001 if (lp_nt_pipe_support()) {
1002 do_nt_transact_create_pipe(
1003 conn, req,
1004 ppsetup, setup_count,
1005 ppparams, parameter_count,
1006 ppdata, data_count);
1007 goto out;
1008 }
1009 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1010 goto out;
1011 }
1012
1013 /*
1014 * Ensure minimum number of parameters sent.
1015 */
1016
1017 if(parameter_count < 54) {
1018 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1019 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1020 goto out;
1021 }
1022
1023 flags = IVAL(params,0);
1024 access_mask = IVAL(params,8);
1025 file_attributes = IVAL(params,20);
1026 share_access = IVAL(params,24);
1027 create_disposition = IVAL(params,28);
1028 create_options = IVAL(params,32);
1029 sd_len = IVAL(params,36);
1030 ea_len = IVAL(params,40);
1031 root_dir_fid = (uint16)IVAL(params,4);
1032 allocation_size = BVAL(params,12);
1033
1034 /*
1035 * we need to remove ignored bits when they come directly from the client
1036 * because we reuse some of them for internal stuff
1037 */
1038 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
1039
1040 /* Ensure the data_len is correct for the sd and ea values given. */
1041 if ((ea_len + sd_len > data_count)
1042 || (ea_len > data_count) || (sd_len > data_count)
1043 || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
1044 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
1045 "%u, data_count = %u\n", (unsigned int)ea_len,
1046 (unsigned int)sd_len, (unsigned int)data_count));
1047 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1048 goto out;
1049 }
1050
1051 if (sd_len) {
1052 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
1053 sd_len));
1054
1055 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
1056 &sd);
1057 if (!NT_STATUS_IS_OK(status)) {
1058 DEBUG(10, ("call_nt_transact_create: "
1059 "unmarshall_sec_desc failed: %s\n",
1060 nt_errstr(status)));
1061 reply_nterror(req, status);
1062 goto out;
1063 }
1064 }
1065
1066 if (ea_len) {
1067 if (!lp_ea_support(SNUM(conn))) {
1068 DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
1069 "EA's not supported.\n",
1070 (unsigned int)ea_len));
1071 reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
1072 goto out;
1073 }
1074
1075 if (ea_len < 10) {
1076 DEBUG(10,("call_nt_transact_create - ea_len = %u - "
1077 "too small (should be more than 10)\n",
1078 (unsigned int)ea_len ));
1079 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1080 goto out;
1081 }
1082
1083 /* We have already checked that ea_len <= data_count here. */
1084 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
1085 ea_len);
1086 if (ea_list == NULL) {
1087 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1088 goto out;
1089 }
1090 }
1091
1092 srvstr_get_path(ctx, params, req->flags2, &fname,
1093 params+53, parameter_count-53,
1094 STR_TERMINATE, &status);
1095 if (!NT_STATUS_IS_OK(status)) {
1096 reply_nterror(req, status);
1097 goto out;
1098 }
1099
1100 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
1101 case_state = set_posix_case_semantics(ctx, conn);
1102 if (!case_state) {
1103 reply_nterror(req, NT_STATUS_NO_MEMORY);
1104 goto out;
1105 }
1106 }
1107
1108 status = filename_convert(ctx,
1109 conn,
1110 req->flags2 & FLAGS2_DFS_PATHNAMES,
1111 fname,
1112 0,
1113 NULL,
1114 &smb_fname);
1115
1116 TALLOC_FREE(case_state);
1117
1118 if (!NT_STATUS_IS_OK(status)) {
1119 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1120 reply_botherror(req,
1121 NT_STATUS_PATH_NOT_COVERED,
1122 ERRSRV, ERRbadpath);
1123 goto out;
1124 }
1125 reply_nterror(req, status);
1126 goto out;
1127 }
1128
1129 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1130 if (oplock_request) {
1131 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1132 ? BATCH_OPLOCK : 0;
1133 }
1134
1135 /*
1136 * Bug #6898 - clients using Windows opens should
1137 * never be able to set this attribute into the
1138 * VFS.
1139 */
1140 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
1141
1142 status = SMB_VFS_CREATE_FILE(
1143 conn, /* conn */
1144 req, /* req */
1145 root_dir_fid, /* root_dir_fid */
1146 smb_fname, /* fname */
1147 access_mask, /* access_mask */
1148 share_access, /* share_access */
1149 create_disposition, /* create_disposition*/
1150 create_options, /* create_options */
1151 file_attributes, /* file_attributes */
1152 oplock_request, /* oplock_request */
1153 allocation_size, /* allocation_size */
1154 0, /* private_flags */
1155 sd, /* sd */
1156 ea_list, /* ea_list */
1157 &fsp, /* result */
1158 &info); /* pinfo */
1159
1160 if(!NT_STATUS_IS_OK(status)) {
1161 if (open_was_deferred(req->mid)) {
1162 /* We have re-scheduled this call, no error. */
1163 return;
1164 }
1165 reply_openerror(req, status);
1166 goto out;
1167 }
1168
1169 /* Ensure we're pointing at the correct stat struct. */
1170 TALLOC_FREE(smb_fname);
1171 smb_fname = fsp->fsp_name;
1172
1173 /*
1174 * If the caller set the extended oplock request bit
1175 * and we granted one (by whatever means) - set the
1176 * correct bit for extended oplock reply.
1177 */
1178
1179 if (oplock_request &&
1180 (lp_fake_oplocks(SNUM(conn))
1181 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1182
1183 /*
1184 * Exclusive oplock granted
1185 */
1186
1187 if (flags & REQUEST_BATCH_OPLOCK) {
1188 oplock_granted = BATCH_OPLOCK_RETURN;
1189 } else {
1190 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1191 }
1192 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1193 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1194 } else {
1195 oplock_granted = NO_OPLOCK_RETURN;
1196 }
1197
1198 file_len = smb_fname->st.st_ex_size;
1199
1200 /* Realloc the size of parameters and data we will return */
1201 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1202 /* Extended response is 32 more byyes. */
1203 param_len = 101;
1204 } else {
1205 param_len = 69;
1206 }
1207 params = nttrans_realloc(ppparams, param_len);
1208 if(params == NULL) {
1209 reply_nterror(req, NT_STATUS_NO_MEMORY);
1210 goto out;
1211 }
1212
1213 p = params;
1214 SCVAL(p, 0, oplock_granted);
1215
1216 p += 2;
1217 SSVAL(p,0,fsp->fnum);
1218 p += 2;
1219 if ((create_disposition == FILE_SUPERSEDE)
1220 && (info == FILE_WAS_OVERWRITTEN)) {
1221 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1222 } else {
1223 SIVAL(p,0,info);
1224 }
1225 p += 8;
1226
1227 fattr = dos_mode(conn, smb_fname);
1228 if (fattr == 0) {
1229 fattr = FILE_ATTRIBUTE_NORMAL;
1230 }
1231
1232 /* Deal with other possible opens having a modified
1233 write time. JRA. */
1234 ZERO_STRUCT(write_time_ts);
1235 get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
1236 if (!null_timespec(write_time_ts)) {
1237 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
1238 }
1239
1240 /* Create time. */
1241 create_timespec = get_create_timespec(conn, fsp, smb_fname);
1242 a_timespec = smb_fname->st.st_ex_atime;
1243 m_timespec = smb_fname->st.st_ex_mtime;
1244 c_timespec = get_change_timespec(conn, fsp, smb_fname);
1245
1246 if (lp_dos_filetime_resolution(SNUM(conn))) {
1247 dos_filetime_timespec(&create_timespec);
1248 dos_filetime_timespec(&a_timespec);
1249 dos_filetime_timespec(&m_timespec);
1250 dos_filetime_timespec(&c_timespec);
1251 }
1252
1253 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
1254 p += 8;
1255 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
1256 p += 8;
1257 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
1258 p += 8;
1259 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
1260 p += 8;
1261 SIVAL(p,0,fattr); /* File Attributes. */
1262 p += 4;
1263 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1264 p += 8;
1265 SOFF_T(p,0,file_len);
1266 p += 8;
1267 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1268 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
1269 size_t num_names = 0;
1270 unsigned int num_streams;
1271 struct stream_struct *streams = NULL;
1272
1273 /* Do we have any EA's ? */
1274 status = get_ea_names_from_file(ctx, conn, fsp,
1275 smb_fname->base_name, NULL, &num_names);
1276 if (NT_STATUS_IS_OK(status) && num_names) {
1277 file_status &= ~NO_EAS;
1278 }
1279 status = SMB_VFS_STREAMINFO(conn, NULL, smb_fname->base_name, ctx,
1280 &num_streams, &streams);
1281 /* There is always one stream, ::$DATA. */
1282 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
1283 file_status &= ~NO_SUBSTREAMS;
1284 }
1285 TALLOC_FREE(streams);
1286 SSVAL(p,2,file_status);
1287 }
1288 p += 4;
1289 SCVAL(p,0,fsp->is_directory ? 1 : 0);
1290
1291 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1292 uint32 perms = 0;
1293 p += 25;
1294 if (fsp->is_directory ||
1295 can_write_to_file(conn, smb_fname)) {
1296 perms = FILE_GENERIC_ALL;
1297 } else {
1298 perms = FILE_GENERIC_READ|FILE_EXECUTE;
1299 }
1300 SIVAL(p,0,perms);
1301 }
1302
1303 DEBUG(5,("call_nt_transact_create: open name = %s\n",
1304 smb_fname_str_dbg(smb_fname)));
1305
1306 /* Send the required number of replies */
1307 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1308 out:
1309 return;
1310 }
1311
1312 /****************************************************************************
1313 Reply to a NT CANCEL request.
1314 conn POINTER CAN BE NULL HERE !
1315 ****************************************************************************/
1316
1317 void reply_ntcancel(struct smb_request *req)
1318 {
1319 /*
1320 * Go through and cancel any pending change notifies.
1321 */
1322
1323 START_PROFILE(SMBntcancel);
1324 srv_cancel_sign_response(req->sconn);
1325 remove_pending_change_notify_requests_by_mid(req->sconn, req->mid);
1326 remove_pending_lock_requests_by_mid_smb1(req->sconn, req->mid);
1327
1328 DEBUG(3,("reply_ntcancel: cancel called on mid = %llu.\n",
1329 (unsigned long long)req->mid));
1330
1331 END_PROFILE(SMBntcancel);
1332 return;
1333 }
1334
1335 /****************************************************************************
1336 Copy a file.
1337 ****************************************************************************/
1338
1339 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1340 connection_struct *conn,
1341 struct smb_request *req,
1342 struct smb_filename *smb_fname_src,
1343 struct smb_filename *smb_fname_dst,
1344 uint32 attrs)
1345 {
1346 files_struct *fsp1,*fsp2;
1347 uint32 fattr;
1348 int info;
1349 SMB_OFF_T ret=-1;
1350 NTSTATUS status = NT_STATUS_OK;
1351 char *parent;
1352
1353 if (!CAN_WRITE(conn)) {
1354 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1355 goto out;
1356 }
1357
1358 /* Source must already exist. */
1359 if (!VALID_STAT(smb_fname_src->st)) {
1360 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1361 goto out;
1362 }
1363
1364 /* Ensure attributes match. */
1365 fattr = dos_mode(conn, smb_fname_src);
1366 if ((fattr & ~attrs) & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) {
1367 status = NT_STATUS_NO_SUCH_FILE;
1368 goto out;
1369 }
1370
1371 /* Disallow if dst file already exists. */
1372 if (VALID_STAT(smb_fname_dst->st)) {
1373 status = NT_STATUS_OBJECT_NAME_COLLISION;
1374 goto out;
1375 }
1376
1377 /* No links from a directory. */
1378 if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1379 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1380 goto out;
1381 }
1382
1383 DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1384 smb_fname_str_dbg(smb_fname_src),
1385 smb_fname_str_dbg(smb_fname_dst)));
1386
1387 status = SMB_VFS_CREATE_FILE(
1388 conn, /* conn */
1389 req, /* req */
1390 0, /* root_dir_fid */
1391 smb_fname_src, /* fname */
1392 FILE_READ_DATA|FILE_READ_ATTRIBUTES|
1393 FILE_READ_EA, /* access_mask */
1394 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1395 FILE_SHARE_DELETE),
1396 FILE_OPEN, /* create_disposition*/
1397 0, /* create_options */
1398 FILE_ATTRIBUTE_NORMAL, /* file_attributes */
1399 NO_OPLOCK, /* oplock_request */
1400 0, /* allocation_size */
1401 0, /* private_flags */
1402 NULL, /* sd */
1403 NULL, /* ea_list */
1404 &fsp1, /* result */
1405 &info); /* pinfo */
1406
1407 if (!NT_STATUS_IS_OK(status)) {
1408 goto out;
1409 }
1410
1411 status = SMB_VFS_CREATE_FILE(
1412 conn, /* conn */
1413 req, /* req */
1414 0, /* root_dir_fid */
1415 smb_fname_dst, /* fname */
1416 FILE_WRITE_DATA|FILE_WRITE_ATTRIBUTES|
1417 FILE_WRITE_EA, /* access_mask */
1418 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1419 FILE_SHARE_DELETE),
1420 FILE_CREATE, /* create_disposition*/
1421 0, /* create_options */
1422 fattr, /* file_attributes */
1423 NO_OPLOCK, /* oplock_request */
1424 0, /* allocation_size */
1425 0, /* private_flags */
1426 NULL, /* sd */
1427 NULL, /* ea_list */
1428 &fsp2, /* result */
1429 &info); /* pinfo */
1430
1431 if (!NT_STATUS_IS_OK(status)) {
1432 close_file(NULL, fsp1, ERROR_CLOSE);
1433 goto out;
1434 }
1435
1436 if (smb_fname_src->st.st_ex_size) {
1437 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1438 }
1439
1440 /*
1441 * As we are opening fsp1 read-only we only expect
1442 * an error on close on fsp2 if we are out of space.
1443 * Thus we don't look at the error return from the
1444 * close of fsp1.
1445 */
1446 close_file(NULL, fsp1, NORMAL_CLOSE);
1447
1448 /* Ensure the modtime is set correctly on the destination file. */
1449 set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1450
1451 status = close_file(NULL, fsp2, NORMAL_CLOSE);
1452
1453 /* Grrr. We have to do this as open_file_ntcreate adds FILE_ATTRIBUTE_ARCHIVE when it
1454 creates the file. This isn't the correct thing to do in the copy
1455 case. JRA */
1456 if (!parent_dirname(talloc_tos(), smb_fname_dst->base_name, &parent,
1457 NULL)) {
1458 status = NT_STATUS_NO_MEMORY;
1459 goto out;
1460 }
1461 file_set_dosmode(conn, smb_fname_dst, fattr, parent, false);
1462 TALLOC_FREE(parent);
1463
1464 if (ret < (SMB_OFF_T)smb_fname_src->st.st_ex_size) {
1465 status = NT_STATUS_DISK_FULL;
1466 goto out;
1467 }
1468 out:
1469 if (!NT_STATUS_IS_OK(status)) {
1470 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1471 nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1472 smb_fname_str_dbg(smb_fname_dst)));
1473 }
1474
1475 return status;
1476 }
1477
1478 /****************************************************************************
1479 Reply to a NT rename request.
1480 ****************************************************************************/
1481
1482 void reply_ntrename(struct smb_request *req)
1483 {
1484 connection_struct *conn = req->conn;
1485 struct smb_filename *smb_fname_old = NULL;
1486 struct smb_filename *smb_fname_new = NULL;
1487 char *oldname = NULL;
1488 char *newname = NULL;
1489 const char *p;
1490 NTSTATUS status;
1491 bool src_has_wcard = False;
1492 bool dest_has_wcard = False;
1493 uint32 attrs;
1494 uint32_t ucf_flags_src = 0;
1495 uint32_t ucf_flags_dst = 0;
1496 uint16 rename_type;
1497 TALLOC_CTX *ctx = talloc_tos();
1498 bool stream_rename = false;
1499
1500 START_PROFILE(SMBntrename);
1501
1502 if (req->wct < 4) {
1503 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1504 goto out;
1505 }
1506
1507 attrs = SVAL(req->vwv+0, 0);
1508 rename_type = SVAL(req->vwv+1, 0);
1509
1510 p = (const char *)req->buf + 1;
1511 p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1512 &status, &src_has_wcard);
1513 if (!NT_STATUS_IS_OK(status)) {
1514 reply_nterror(req, status);
1515 goto out;
1516 }
1517
1518 if (ms_has_wild(oldname)) {
1519 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1520 goto out;
1521 }
1522
1523 p++;
1524 p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1525 &status, &dest_has_wcard);
1526 if (!NT_STATUS_IS_OK(status)) {
1527 reply_nterror(req, status);
1528 goto out;
1529 }
1530
1531 if (!lp_posix_pathnames()) {
1532 /* The newname must begin with a ':' if the
1533 oldname contains a ':'. */
1534 if (strchr_m(oldname, ':')) {
1535 if (newname[0] != ':') {
1536 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1537 goto out;
1538 }
1539 stream_rename = true;
1540 }
1541 }
1542
1543 /*
1544 * If this is a rename operation, allow wildcards and save the
1545 * destination's last component.
1546 */
1547 if (rename_type == RENAME_FLAG_RENAME) {
1548 ucf_flags_src = UCF_COND_ALLOW_WCARD_LCOMP;
1549 ucf_flags_dst = UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1550 }
1551
1552 /* rename_internals() calls unix_convert(), so don't call it here. */
1553 status = filename_convert(ctx, conn,
1554 req->flags2 & FLAGS2_DFS_PATHNAMES,
1555 oldname,
1556 ucf_flags_src,
1557 NULL,
1558 &smb_fname_old);
1559 if (!NT_STATUS_IS_OK(status)) {
1560 if (NT_STATUS_EQUAL(status,
1561 NT_STATUS_PATH_NOT_COVERED)) {
1562 reply_botherror(req,
1563 NT_STATUS_PATH_NOT_COVERED,
1564 ERRSRV, ERRbadpath);
1565 goto out;
1566 }
1567 reply_nterror(req, status);
1568 goto out;
1569 }
1570
1571 status = filename_convert(ctx, conn,
1572 req->flags2 & FLAGS2_DFS_PATHNAMES,
1573 newname,
1574 ucf_flags_dst,
1575 &dest_has_wcard,
1576 &smb_fname_new);
1577 if (!NT_STATUS_IS_OK(status)) {
1578 if (NT_STATUS_EQUAL(status,
1579 NT_STATUS_PATH_NOT_COVERED)) {
1580 reply_botherror(req,
1581 NT_STATUS_PATH_NOT_COVERED,
1582 ERRSRV, ERRbadpath);
1583 goto out;
1584 }
1585 reply_nterror(req, status);
1586 goto out;
1587 }
1588
1589 if (stream_rename) {
1590 /* smb_fname_new must be the same as smb_fname_old. */
1591 TALLOC_FREE(smb_fname_new->base_name);
1592 smb_fname_new->base_name = talloc_strdup(smb_fname_new,
1593 smb_fname_old->base_name);
1594 if (!smb_fname_new->base_name) {
1595 reply_nterror(req, NT_STATUS_NO_MEMORY);
1596 goto out;
1597 }
1598 }
1599
1600 DEBUG(3,("reply_ntrename: %s -> %s\n",
1601 smb_fname_str_dbg(smb_fname_old),
1602 smb_fname_str_dbg(smb_fname_new)));
1603
1604 switch(rename_type) {
1605 case RENAME_FLAG_RENAME:
1606 status = rename_internals(ctx, conn, req,
1607 smb_fname_old, smb_fname_new,
1608 attrs, False, src_has_wcard,
1609 dest_has_wcard,
1610 DELETE_ACCESS);
1611 break;
1612 case RENAME_FLAG_HARD_LINK:
1613 if (src_has_wcard || dest_has_wcard) {
1614 /* No wildcards. */
1615 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1616 } else {
1617 status = hardlink_internals(ctx, conn,
1618 req,
1619 false,
1620 smb_fname_old,
1621 smb_fname_new);
1622 }
1623 break;
1624 case RENAME_FLAG_COPY:
1625 if (src_has_wcard || dest_has_wcard) {
1626 /* No wildcards. */
1627 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1628 } else {
1629 status = copy_internals(ctx, conn, req,
1630 smb_fname_old,
1631 smb_fname_new,
1632 attrs);
1633 }
1634 break;
1635 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1636 status = NT_STATUS_INVALID_PARAMETER;
1637 break;
1638 default:
1639 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1640 break;
1641 }
1642
1643 if (!NT_STATUS_IS_OK(status)) {
1644 if (open_was_deferred(req->mid)) {
1645 /* We have re-scheduled this call. */
1646 goto out;
1647 }
1648
1649 reply_nterror(req, status);
1650 goto out;
1651 }
1652
1653 reply_outbuf(req, 0, 0);
1654 out:
1655 END_PROFILE(SMBntrename);
1656 return;
1657 }
1658
1659 /****************************************************************************
1660 Reply to a notify change - queue the request and
1661 don't allow a directory to be opened.
1662 ****************************************************************************/
1663
1664 static void smbd_smb1_notify_reply(struct smb_request *req,
1665 NTSTATUS error_code,
1666 uint8_t *buf, size_t len)
1667 {
1668 send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1669 }
1670
1671 static void call_nt_transact_notify_change(connection_struct *conn,
1672 struct smb_request *req,
1673 uint16 **ppsetup,
1674 uint32 setup_count,
1675 char **ppparams,
1676 uint32 parameter_count,
1677 char **ppdata, uint32 data_count,
1678 uint32 max_data_count,
1679 uint32 max_param_count)
1680 {
1681 uint16 *setup = *ppsetup;
1682 files_struct *fsp;
1683 uint32 filter;
1684 NTSTATUS status;
1685 bool recursive;
1686
1687 if(setup_count < 6) {
1688 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1689 return;
1690 }
1691
1692 fsp = file_fsp(req, SVAL(setup,4));
1693 filter = IVAL(setup, 0);
1694 recursive = (SVAL(setup, 6) != 0) ? True : False;
1695
1696 DEBUG(3,("call_nt_transact_notify_change\n"));
1697
1698 if(!fsp) {
1699 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1700 return;
1701 }
1702
1703 {
1704 char *filter_string;
1705
1706 if (!(filter_string = notify_filter_string(NULL, filter))) {
1707 reply_nterror(req,NT_STATUS_NO_MEMORY);
1708 return;
1709 }
1710
1711 DEBUG(3,("call_nt_transact_notify_change: notify change "
1712 "called on %s, filter = %s, recursive = %d\n",
1713 fsp_str_dbg(fsp), filter_string, recursive));
1714
1715 TALLOC_FREE(filter_string);
1716 }
1717
1718 if((!fsp->is_directory) || (conn != fsp->conn)) {
1719 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1720 return;
1721 }
1722
1723 if (fsp->notify == NULL) {
1724
1725 status = change_notify_create(fsp, filter, recursive);
1726
1727 if (!NT_STATUS_IS_OK(status)) {
1728 DEBUG(10, ("change_notify_create returned %s\n",
1729 nt_errstr(status)));
1730 reply_nterror(req, status);
1731 return;
1732 }
1733 }
1734
1735 if (fsp->notify->num_changes != 0) {
1736
1737 /*
1738 * We've got changes pending, respond immediately
1739 */
1740
1741 /*
1742 * TODO: write a torture test to check the filtering behaviour
1743 * here.
1744 */
1745
1746 change_notify_reply(req,
1747 NT_STATUS_OK,
1748 max_param_count,
1749 fsp->notify,
1750 smbd_smb1_notify_reply);
1751
1752 /*
1753 * change_notify_reply() above has independently sent its
1754 * results
1755 */
1756 return;
1757 }
1758
1759 /*
1760 * No changes pending, queue the request
1761 */
1762
1763 status = change_notify_add_request(req,
1764 max_param_count,
1765 filter,
1766 recursive, fsp,
1767 smbd_smb1_notify_reply);
1768 if (!NT_STATUS_IS_OK(status)) {
1769 reply_nterror(req, status);
1770 }
1771 return;
1772 }
1773
1774 /****************************************************************************
1775 Reply to an NT transact rename command.
1776 ****************************************************************************/
1777
1778 static void call_nt_transact_rename(connection_struct *conn,
1779 struct smb_request *req,
1780 uint16 **ppsetup, uint32 setup_count,
1781 char **ppparams, uint32 parameter_count,
1782 char **ppdata, uint32 data_count,
1783 uint32 max_data_count)
1784 {
1785 char *params = *ppparams;
1786 char *new_name = NULL;
1787 files_struct *fsp = NULL;
1788 bool dest_has_wcard = False;
1789 NTSTATUS status;
1790 TALLOC_CTX *ctx = talloc_tos();
1791
1792 if(parameter_count < 5) {
1793 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1794 return;
1795 }
1796
1797 fsp = file_fsp(req, SVAL(params, 0));
1798 if (!check_fsp(conn, req, fsp)) {
1799 return;
1800 }
1801 srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1802 parameter_count - 4,
1803 STR_TERMINATE, &status, &dest_has_wcard);
1804 if (!NT_STATUS_IS_OK(status)) {
1805 reply_nterror(req, status);
1806 return;
1807 }
1808
1809 /*
1810 * W2K3 ignores this request as the RAW-RENAME test
1811 * demonstrates, so we do.
1812 */
1813 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1814
1815 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1816 fsp_str_dbg(fsp), new_name));
1817
1818 return;
1819 }
1820
1821 /******************************************************************************
1822 Fake up a completely empty SD.
1823 *******************************************************************************/
1824
1825 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, struct security_descriptor **ppsd)
1826 {
1827 size_t sd_size;
1828
1829 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1830 if(!*ppsd) {
1831 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1832 return NT_STATUS_NO_MEMORY;
1833 }
1834
1835 return NT_STATUS_OK;
1836 }
1837
1838 /****************************************************************************
1839 Reply to query a security descriptor.
1840 Callable from SMB2 and SMB2.
1841 If it returns NT_STATUS_BUFFER_TOO_SMALL, pdata_size is initialized with
1842 the required size.
1843 ****************************************************************************/
1844
1845 NTSTATUS smbd_do_query_security_desc(connection_struct *conn,
1846 TALLOC_CTX *mem_ctx,
1847 files_struct *fsp,
1848 uint32_t security_info_wanted,
1849 uint32_t max_data_count,
1850 uint8_t **ppmarshalled_sd,
1851 size_t *psd_size)
1852 {
1853 NTSTATUS status;
1854 struct security_descriptor *psd = NULL;
1855
1856 /*
1857 * Get the permissions to return.
1858 */
1859
1860 if ((security_info_wanted & SECINFO_SACL) &&
1861 !(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
1862 return NT_STATUS_ACCESS_DENIED;
1863 }
1864
1865 if ((security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|SECINFO_GROUP)) &&
1866 !(fsp->access_mask & SEC_STD_READ_CONTROL)) {
1867 return NT_STATUS_ACCESS_DENIED;
1868 }
1869
1870 if (!lp_nt_acl_support(SNUM(conn))) {
1871 status = get_null_nt_acl(mem_ctx, &psd);
1872 } else {
1873 status = SMB_VFS_FGET_NT_ACL(
1874 fsp, security_info_wanted, &psd);
1875 }
1876 if (!NT_STATUS_IS_OK(status)) {
1877 return status;
1878 }
1879
1880 if (!(security_info_wanted & SECINFO_OWNER)) {
1881 psd->owner_sid = NULL;
1882 }
1883 if (!(security_info_wanted & SECINFO_GROUP)) {
1884 psd->group_sid = NULL;
1885 }
1886 if (!(security_info_wanted & SECINFO_DACL)) {
1887 psd->dacl = NULL;
1888 }
1889 if (!(security_info_wanted & SECINFO_SACL)) {
1890 psd->sacl = NULL;
1891 }
1892
1893 /* If the SACL/DACL is NULL, but was requested, we mark that it is
1894 * present in the reply to match Windows behavior */
1895 if (psd->sacl == NULL &&
1896 security_info_wanted & SECINFO_SACL)
1897 psd->type |= SEC_DESC_SACL_PRESENT;
1898 if (psd->dacl == NULL &&
1899 security_info_wanted & SECINFO_DACL)
1900 psd->type |= SEC_DESC_DACL_PRESENT;
1901
1902 *psd_size = ndr_size_security_descriptor(psd, 0);
1903
1904 DEBUG(3,("smbd_do_query_security_desc: sd_size = %lu.\n",
1905 (unsigned long)*psd_size));
1906
1907 if (DEBUGLEVEL >= 10) {
1908 DEBUG(10,("smbd_do_query_security_desc for file %s\n",
1909 fsp_str_dbg(fsp)));
1910 NDR_PRINT_DEBUG(security_descriptor, psd);
1911 }
1912
1913 if (max_data_count < *psd_size) {
1914 TALLOC_FREE(psd);
1915 return NT_STATUS_BUFFER_TOO_SMALL;
1916 }
1917
1918 status = marshall_sec_desc(mem_ctx, psd,
1919 ppmarshalled_sd, psd_size);
1920
1921 if (!NT_STATUS_IS_OK(status)) {
1922 TALLOC_FREE(psd);
1923 return status;
1924 }
1925
1926 TALLOC_FREE(psd);
1927 return NT_STATUS_OK;
1928 }
1929
1930 /****************************************************************************
1931 SMB1 reply to query a security descriptor.
1932 ****************************************************************************/
1933
1934 static void call_nt_transact_query_security_desc(connection_struct *conn,
1935 struct smb_request *req,
1936 uint16 **ppsetup,
1937 uint32 setup_count,
1938 char **ppparams,
1939 uint32 parameter_count,
1940 char **ppdata,
1941 uint32 data_count,
1942 uint32 max_data_count)
1943 {
1944 char *params = *ppparams;
1945 char *data = *ppdata;
1946 size_t sd_size = 0;
1947 uint32 security_info_wanted;
1948 files_struct *fsp = NULL;
1949 NTSTATUS status;
1950 uint8_t *marshalled_sd = NULL;
1951
1952 if(parameter_count < 8) {
1953 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1954 return;
1955 }
1956
1957 fsp = file_fsp(req, SVAL(params,0));
1958 if(!fsp) {
1959 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1960 return;
1961 }
1962
1963 security_info_wanted = IVAL(params,4);
1964
1965 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
1966 "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
1967 (unsigned int)security_info_wanted));
1968
1969 params = nttrans_realloc(ppparams, 4);
1970 if(params == NULL) {
1971 reply_nterror(req, NT_STATUS_NO_MEMORY);
1972 return;
1973 }
1974
1975 /*
1976 * Get the permissions to return.
1977 */
1978
1979 status = smbd_do_query_security_desc(conn,
1980 talloc_tos(),
1981 fsp,
1982 security_info_wanted,
1983 max_data_count,
1984 &marshalled_sd,
1985 &sd_size);
1986
1987 if (NT_STATUS_EQUAL(status, NT_STATUS_BUFFER_TOO_SMALL)) {
1988 SIVAL(params,0,(uint32_t)sd_size);
1989 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1990 params, 4, NULL, 0);
1991 return;
1992 }
1993
1994 if (!NT_STATUS_IS_OK(status)) {
1995 reply_nterror(req, status);
1996 return;
1997 }
1998
1999 SMB_ASSERT(sd_size > 0);
2000
2001 SIVAL(params,0,(uint32_t)sd_size);
2002
2003 if (max_data_count < sd_size) {
2004 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2005 params, 4, NULL, 0);
2006 return;
2007 }
2008
2009 /*
2010 * Allocate the data we will return.
2011 */
2012
2013 data = nttrans_realloc(ppdata, sd_size);
2014 if(data == NULL) {
2015 reply_nterror(req, NT_STATUS_NO_MEMORY);
2016 return;
2017 }
2018
2019 memcpy(data, marshalled_sd, sd_size);
2020
2021 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
2022
2023 return;
2024 }
2025
2026 /****************************************************************************
2027 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
2028 ****************************************************************************/
2029
2030 static void call_nt_transact_set_security_desc(connection_struct *conn,
2031 struct smb_request *req,
2032 uint16 **ppsetup,
2033 uint32 setup_count,
2034 char **ppparams,
2035 uint32 parameter_count,
2036 char **ppdata,
2037 uint32 data_count,
2038 uint32 max_data_count)
2039 {
2040 char *params= *ppparams;
2041 char *data = *ppdata;
2042 files_struct *fsp = NULL;
2043 uint32 security_info_sent = 0;
2044 NTSTATUS status;
2045
2046 if(parameter_count < 8) {
2047 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2048 return;
2049 }
2050
2051 if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
2052 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2053 return;
2054 }
2055
2056 if (!CAN_WRITE(fsp->conn)) {
2057 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2058 return;
2059 }
2060
2061 if(!lp_nt_acl_support(SNUM(conn))) {
2062 goto done;
2063 }
2064
2065 security_info_sent = IVAL(params,4);
2066
2067 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
2068 fsp_str_dbg(fsp), (unsigned int)security_info_sent));
2069
2070 if (data_count == 0) {
2071 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2072 return;
2073 }
2074
2075 status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
2076
2077 if (!NT_STATUS_IS_OK(status)) {
2078 reply_nterror(req, status);
2079 return;
2080 }
2081
2082 done:
2083 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2084 return;
2085 }
2086
2087 /****************************************************************************
2088 Reply to NT IOCTL
2089 ****************************************************************************/
2090
2091 static void call_nt_transact_ioctl(connection_struct *conn,
2092 struct smb_request *req,
2093 uint16 **ppsetup, uint32 setup_count,
2094 char **ppparams, uint32 parameter_count,
2095 char **ppdata, uint32 data_count,
2096 uint32 max_data_count)
2097 {
2098 uint32 function;
2099 uint16 fidnum;
2100 files_struct *fsp;
2101 uint8 isFSctl;
2102 uint8 compfilter;
2103 char *pdata = *ppdata;
2104
2105 if (setup_count != 8) {
2106 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
2107 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2108 return;
2109 }
2110
2111 function = IVAL(*ppsetup, 0);
2112 fidnum = SVAL(*ppsetup, 4);
2113 isFSctl = CVAL(*ppsetup, 6);
2114 compfilter = CVAL(*ppsetup, 7);
2115
2116 DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
2117 function, fidnum, isFSctl, compfilter));
2118
2119 fsp=file_fsp(req, fidnum);
2120 /* this check is done in each implemented function case for now
2121 because I don't want to break anything... --metze
2122 FSP_BELONGS_CONN(fsp,conn);*/
2123
2124 SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
2125
2126 switch (function) {
2127 case FSCTL_SET_SPARSE:
2128 {
2129 bool set_sparse = true;
2130 NTSTATUS status;
2131
2132 if (data_count >= 1 && pdata[0] == 0) {
2133 set_sparse = false;
2134 }
2135
2136 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X]set[%u]\n",
2137 fidnum, set_sparse));
2138
2139 if (!check_fsp_open(conn, req, fsp)) {
2140 return;
2141 }
2142
2143 status = file_set_sparse(conn, fsp, set_sparse);
2144 if (!NT_STATUS_IS_OK(status)) {
2145 DEBUG(9,("FSCTL_SET_SPARSE: fname[%s] set[%u] - %s\n",
2146 smb_fname_str_dbg(fsp->fsp_name), set_sparse, nt_errstr(status)));
2147 reply_nterror(req, status);
2148 return;
2149 }
2150
2151 DEBUG(10,("FSCTL_SET_SPARSE: fname[%s] set[%u] - %s\n",
2152 smb_fname_str_dbg(fsp->fsp_name), set_sparse, nt_errstr(status)));
2153 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2154 return;
2155 }
2156 case FSCTL_CREATE_OR_GET_OBJECT_ID:
2157 {
2158 unsigned char objid[16];
2159
2160 /* This should return the object-id on this file.
2161 * I think I'll make this be the inode+dev. JRA.
2162 */
2163
2164 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
2165
2166 if (!check_fsp_open(conn, req, fsp)) {
2167 return;
2168 }
2169
2170 data_count = 64;
2171 pdata = nttrans_realloc(ppdata, data_count);
2172 if (pdata == NULL) {
2173 reply_nterror(req, NT_STATUS_NO_MEMORY);
2174 return;
2175 }
2176
2177 /* For backwards compatibility only store the dev/inode. */
2178 push_file_id_16(pdata, &fsp->file_id);
2179 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
2180 push_file_id_16(pdata+32, &fsp->file_id);
2181 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2182 pdata, data_count);
2183 return;
2184 }
2185
2186 case FSCTL_GET_REPARSE_POINT:
2187 /* pretend this fail - my winXP does it like this
2188 * --metze
2189 */
2190
2191 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
2192 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
2193 return;
2194
2195 case FSCTL_SET_REPARSE_POINT:
2196 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
2197 * --metze
2198 */
2199
2200 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
2201 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
2202 return;
2203
2204 case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
2205 {
2206 /*
2207 * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
2208 * and return their volume names. If max_data_count is 16, then it is just
2209 * asking for the number of volumes and length of the combined names.
2210 *
2211 * pdata is the data allocated by our caller, but that uses
2212 * total_data_count (which is 0 in our case) rather than max_data_count.
2213 * Allocate the correct amount and return the pointer to let
2214 * it be deallocated when we return.
2215 */
2216 SHADOW_COPY_DATA *shadow_data = NULL;
2217 TALLOC_CTX *shadow_mem_ctx = NULL;
2218 bool labels = False;
2219 uint32 labels_data_count = 0;
2220 uint32 i;
2221 char *cur_pdata;
2222
2223 if (!check_fsp_open(conn, req, fsp)) {
2224 return;
2225 }
2226
2227 if (max_data_count < 16) {
2228 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
2229 max_data_count));
2230 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2231 return;
2232 }
2233
2234 if (max_data_count > 16) {
2235 labels = True;
2236 }
2237
2238 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
2239 if (shadow_mem_ctx == NULL) {
2240 DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
2241 reply_nterror(req, NT_STATUS_NO_MEMORY);
2242 return;
2243 }
2244
2245 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
2246 if (shadow_data == NULL) {
2247 DEBUG(0,("TALLOC_ZERO() failed!\n"));
2248 talloc_destroy(shadow_mem_ctx);
2249 reply_nterror(req, NT_STATUS_NO_MEMORY);
2250 return;
2251 }
2252
2253 shadow_data->mem_ctx = shadow_mem_ctx;
2254
2255 /*
2256 * Call the VFS routine to actually do the work.
2257 */
2258 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
2259 talloc_destroy(shadow_data->mem_ctx);
2260 if (errno == ENOSYS) {
2261 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
2262 conn->connectpath));
2263 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2264 return;
2265 } else {
2266 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
2267 conn->connectpath));
2268 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
2269 return;
2270 }
2271 }
2272
2273 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
2274
2275 if (!labels) {
2276 data_count = 16;
2277 } else {
2278 data_count = 12+labels_data_count+4;
2279 }
2280
2281 if (max_data_count<data_count) {
2282 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
2283 max_data_count,data_count));
2284 talloc_destroy(shadow_data->mem_ctx);
2285 reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
2286 return;
2287 }
2288
2289 pdata = nttrans_realloc(ppdata, data_count);
2290 if (pdata == NULL) {
2291 talloc_destroy(shadow_data->mem_ctx);
2292 reply_nterror(req, NT_STATUS_NO_MEMORY);
2293 return;
2294 }
2295
2296 cur_pdata = pdata;
2297
2298 /* num_volumes 4 bytes */
2299 SIVAL(pdata,0,shadow_data->num_volumes);
2300
2301 if (labels) {
2302 /* num_labels 4 bytes */
2303 SIVAL(pdata,4,shadow_data->num_volumes);
2304 }
2305
2306 /* needed_data_count 4 bytes */
2307 SIVAL(pdata, 8, labels_data_count+4);
2308
2309 cur_pdata+=12;
2310
2311 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
2312 shadow_data->num_volumes, fsp_str_dbg(fsp)));
2313 if (labels && shadow_data->labels) {
2314 for (i=0;i<shadow_data->num_volumes;i++) {
2315 srvstr_push(pdata, req->flags2,
2316 cur_pdata, shadow_data->labels[i],
2317 2*sizeof(SHADOW_COPY_LABEL),
2318 STR_UNICODE|STR_TERMINATE);
2319 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
2320 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
2321 }
2322 }
2323
2324 talloc_destroy(shadow_data->mem_ctx);
2325
2326 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2327 pdata, data_count);
2328
2329 return;
2330 }
2331
2332 case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
2333 {
2334 /* pretend this succeeded -
2335 *
2336 * we have to send back a list with all files owned by this SID
2337 *
2338 * but I have to check that --metze
2339 */
2340 struct dom_sid sid;
2341 uid_t uid;
2342 size_t sid_len;
2343
2344 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
2345
2346 if (!check_fsp_open(conn, req, fsp)) {
2347 return;
2348 }
2349
2350 if (data_count < 8) {
2351 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2352 return;
2353 }
2354
2355 sid_len = MIN(data_count-4,SID_MAX_SIZE);
2356
2357 /* unknown 4 bytes: this is not the length of the sid :-( */
2358 /*unknown = IVAL(pdata,0);*/
2359
2360 if (!sid_parse(pdata+4,sid_len,&sid)) {
2361 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2362 return;
2363 }
2364 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
2365
2366 if (!sid_to_uid(&sid, &uid)) {
2367 DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
2368 sid_string_dbg(&sid),
2369 (unsigned long)sid_len));
2370 uid = (-1);
2371 }
2372
2373 /* we can take a look at the find source :-)
2374 *
2375 * find ./ -uid $uid -name '*' is what we need here
2376 *
2377 *
2378 * and send 4bytes len and then NULL terminated unicode strings
2379 * for each file
2380 *
2381 * but I don't know how to deal with the paged results
2382 * (maybe we can hang the result anywhere in the fsp struct)
2383 *
2384 * we don't send all files at once
2385 * and at the next we should *not* start from the beginning,
2386 * so we have to cache the result
2387 *
2388 * --metze
2389 */
2390
2391 /* this works for now... */
2392 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2393 return;
2394 }
2395 case FSCTL_QUERY_ALLOCATED_RANGES:
2396 {
2397 /* FIXME: This is just a dummy reply, telling that all of the
2398 * file is allocated. MKS cp needs that.
2399 * Adding the real allocated ranges via FIEMAP on Linux
2400 * and SEEK_DATA/SEEK_HOLE on Solaris is needed to make
2401 * this FSCTL correct for sparse files.
2402 */
2403 NTSTATUS status;
2404 uint64_t offset, length;
2405
2406 if (!check_fsp_open(conn, req, fsp)) {
2407 return;
2408 }
2409
2410 if (data_count != 16) {
2411 DEBUG(0,("FSCTL_QUERY_ALLOCATED_RANGES: data_count(%u) != 16 is invalid!\n",
2412 data_count));
2413 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2414 return;
2415 }
2416
2417 if (max_data_count < 16) {
2418 DEBUG(0,("FSCTL_QUERY_ALLOCATED_RANGES: max_data_count(%u) < 16 is invalid!\n",
2419 max_data_count));
2420 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2421 return;
2422 }
2423
2424 offset = BVAL(pdata,0);
2425 length = BVAL(pdata,8);
2426
2427 if (offset + length < offset) {
2428 /* No 64-bit integer wrap. */
2429 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2430 return;
2431 }
2432
2433 status = vfs_stat_fsp(fsp);
2434 if (!NT_STATUS_IS_OK(status)) {
2435 reply_nterror(req, status);
2436 return;
2437 }
2438
2439 if (offset > fsp->fsp_name->st.st_ex_size ||
2440 fsp->fsp_name->st.st_ex_size == 0 ||
2441 length == 0) {
2442 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2443 } else {
2444 uint64_t end = offset + length;
2445 end = MIN(end, fsp->fsp_name->st.st_ex_size);
2446 SBVAL(pdata,0,0);
2447 SBVAL(pdata,8,end);
2448 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2449 pdata, 16);
2450 }
2451 return;
2452 }
2453 case FSCTL_IS_VOLUME_DIRTY:
2454 DEBUG(10,("FSCTL_IS_VOLUME_DIRTY: called on FID[0x%04X] "
2455 "(but not implemented)\n", (int)fidnum));
2456 /*
2457 * http://msdn.microsoft.com/en-us/library/cc232128%28PROT.10%29.aspx
2458 * says we have to respond with NT_STATUS_INVALID_PARAMETER
2459 */
2460 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2461 return;
2462 default:
2463 /* Only print this once... */
2464 if (!logged_ioctl_message) {
2465 logged_ioctl_message = true;
2466 DEBUG(2,("call_nt_transact_ioctl(0x%x): "
2467 "Currently not implemented.\n",
2468 function));
2469 }
2470 }
2471
2472 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2473 }
2474
2475
2476 #ifdef HAVE_SYS_QUOTAS
2477 /****************************************************************************
2478 Reply to get user quota
2479 ****************************************************************************/
2480
2481 static void call_nt_transact_get_user_quota(connection_struct *conn,
2482 struct smb_request *req,
2483 uint16 **ppsetup,
2484 uint32 setup_count,
2485 char **ppparams,
2486 uint32 parameter_count,
2487 char **ppdata,
2488 uint32 data_count,
2489 uint32 max_data_count)
2490 {
2491 NTSTATUS nt_status = NT_STATUS_OK;
2492 char *params = *ppparams;
2493 char *pdata = *ppdata;
2494 char *entry;
2495 int data_len=0,param_len=0;
2496 int qt_len=0;
2497 int entry_len = 0;
2498 files_struct *fsp = NULL;
2499 uint16 level = 0;
2500 size_t sid_len;
2501 struct dom_sid sid;
2502 bool start_enum = True;
2503 SMB_NTQUOTA_STRUCT qt;
2504 SMB_NTQUOTA_LIST *tmp_list;
2505 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2506
2507 ZERO_STRUCT(qt);
2508
2509 /* access check */
2510 if (get_current_uid(conn) != 0) {
2511 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2512 "[%s]\n", lp_servicename(SNUM(conn)),
2513 conn->session_info->unix_name));
2514 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2515 return;
2516 }
2517
2518 /*
2519 * Ensure minimum number of parameters sent.
2520 */
2521
2522 if (parameter_count < 4) {
2523 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2524 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2525 return;
2526 }
2527
2528 /* maybe we can check the quota_fnum */
2529 fsp = file_fsp(req, SVAL(params,0));
2530 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2531 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2532 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2533 return;
2534 }
2535
2536 /* the NULL pointer checking for fsp->fake_file_handle->pd
2537 * is done by CHECK_NTQUOTA_HANDLE_OK()
2538 */
2539 qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2540
2541 level = SVAL(params,2);
2542
2543 /* unknown 12 bytes leading in params */
2544
2545 switch (level) {
2546 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2547 /* seems that we should continue with the enum here --metze */
2548
2549 if (qt_handle->quota_list!=NULL &&
2550 qt_handle->tmp_list==NULL) {
2551
2552 /* free the list */
2553 free_ntquota_list(&(qt_handle->quota_list));
2554
2555 /* Realloc the size of parameters and data we will return */
2556 param_len = 4;
2557 params = nttrans_realloc(ppparams, param_len);
2558 if(params == NULL) {
2559 reply_nterror(req, NT_STATUS_NO_MEMORY);
2560 return;
2561 }
2562
2563 data_len = 0;
2564 SIVAL(params,0,data_len);
2565
2566 break;
2567 }
2568
2569 start_enum = False;
2570
2571 case TRANSACT_GET_USER_QUOTA_LIST_START:
2572
2573 if (qt_handle->quota_list==NULL &&
2574 qt_handle->tmp_list==NULL) {
2575 start_enum = True;
2576 }
2577
2578 if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2579 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2580 return;
2581 }
2582
2583 /* Realloc the size of parameters and data we will return */
2584 param_len = 4;
2585 params = nttrans_realloc(ppparams, param_len);
2586 if(params == NULL) {
2587 reply_nterror(req, NT_STATUS_NO_MEMORY);
2588 return;
2589 }
2590
2591 /* we should not trust the value in max_data_count*/
2592 max_data_count = MIN(max_data_count,2048);
2593
2594 pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2595 if(pdata == NULL) {
2596 reply_nterror(req, NT_STATUS_NO_MEMORY);
2597 return;
2598 }
2599
2600 entry = pdata;
2601
2602 /* set params Size of returned Quota Data 4 bytes*/
2603 /* but set it later when we know it */
2604
2605 /* for each entry push the data */
2606
2607 if (start_enum) {
2608 qt_handle->tmp_list = qt_handle->quota_list;
2609 }
2610
2611 tmp_list = qt_handle->tmp_list;
2612
2613 for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2614 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2615
2616 sid_len = ndr_size_dom_sid(
2617 &tmp_list->quotas->sid, 0);
2618 entry_len = 40 + sid_len;
2619
2620 /* nextoffset entry 4 bytes */
2621 SIVAL(entry,0,entry_len);
2622
2623 /* then the len of the SID 4 bytes */
2624 SIVAL(entry,4,sid_len);
2625
2626 /* unknown data 8 bytes uint64_t */
2627 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2628
2629 /* the used disk space 8 bytes uint64_t */
2630 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2631
2632 /* the soft quotas 8 bytes uint64_t */
2633 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2634
2635 /* the hard quotas 8 bytes uint64_t */
2636 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2637
2638 /* and now the SID */
2639 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2640 }
2641
2642 qt_handle->tmp_list = tmp_list;
2643
2644 /* overwrite the offset of the last entry */
2645 SIVAL(entry-entry_len,0,0);
2646
2647 data_len = 4+qt_len;
2648 /* overwrite the params quota_data_len */
2649 SIVAL(params,0,data_len);
2650
2651 break;
2652
2653 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2654
2655 /* unknown 4 bytes IVAL(pdata,0) */
2656
2657 if (data_count < 8) {
2658 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2659 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2660 return;
2661 }
2662
2663 sid_len = IVAL(pdata,4);
2664 /* Ensure this is less than 1mb. */
2665 if (sid_len > (1024*1024)) {
2666 reply_nterror(req, NT_STATUS_NO_MEMORY);
2667 return;
2668 }
2669
2670 if (data_count < 8+sid_len) {
2671 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2672 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2673 return;
2674 }
2675
2676 data_len = 4+40+sid_len;
2677
2678 if (max_data_count < data_len) {
2679 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2680 max_data_count, data_len));
2681 param_len = 4;
2682 SIVAL(params,0,data_len);
2683 data_len = 0;
2684 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2685 break;
2686 }
2687
2688 if (!sid_parse(pdata+8,sid_len,&sid)) {
2689 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2690 return;
2691 }
2692
2693 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2694 ZERO_STRUCT(qt);
2695 /*
2696 * we have to return zero's in all fields
2697 * instead of returning an error here
2698 * --metze
2699 */
2700 }
2701
2702 /* Realloc the size of parameters and data we will return */
2703 param_len = 4;
2704 params = nttrans_realloc(ppparams, param_len);
2705 if(params == NULL) {
2706 reply_nterror(req, NT_STATUS_NO_MEMORY);
2707 return;
2708 }
2709
2710 pdata = nttrans_realloc(ppdata, data_len);
2711 if(pdata == NULL) {
2712 reply_nterror(req, NT_STATUS_NO_MEMORY);
2713 return;
2714 }
2715
2716 entry = pdata;
2717
2718 /* set params Size of returned Quota Data 4 bytes*/
2719 SIVAL(params,0,data_len);
2720
2721 /* nextoffset entry 4 bytes */
2722 SIVAL(entry,0,0);
2723
2724 /* then the len of the SID 4 bytes */
2725 SIVAL(entry,4,sid_len);
2726
2727 /* unknown data 8 bytes uint64_t */
2728 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2729
2730 /* the used disk space 8 bytes uint64_t */
2731 SBIG_UINT(entry,16,qt.usedspace);
2732
2733 /* the soft quotas 8 bytes uint64_t */
2734 SBIG_UINT(entry,24,qt.softlim);
2735
2736 /* the hard quotas 8 bytes uint64_t */
2737 SBIG_UINT(entry,32,qt.hardlim);
2738
2739 /* and now the SID */
2740 sid_linearize(entry+40, sid_len, &sid);
2741
2742 break;
2743
2744 default:
2745 DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2746 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2747 return;
2748 break;
2749 }
2750
2751 send_nt_replies(conn, req, nt_status, params, param_len,
2752 pdata, data_len);
2753 }
2754
2755 /****************************************************************************
2756 Reply to set user quota
2757 ****************************************************************************/
2758
2759 static void call_nt_transact_set_user_quota(connection_struct *conn,
2760 struct smb_request *req,
2761 uint16 **ppsetup,
2762 uint32 setup_count,
2763 char **ppparams,
2764 uint32 parameter_count,
2765 char **ppdata,
2766 uint32 data_count,
2767 uint32 max_data_count)
2768 {
2769 char *params = *ppparams;
2770 char *pdata = *ppdata;
2771 int data_len=0,param_len=0;
2772 SMB_NTQUOTA_STRUCT qt;
2773 size_t sid_len;
2774 struct dom_sid sid;
2775 files_struct *fsp = NULL;
2776
2777 ZERO_STRUCT(qt);
2778
2779 /* access check */
2780 if (get_current_uid(conn) != 0) {
2781 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2782 "[%s]\n", lp_servicename(SNUM(conn)),
2783 conn->session_info->unix_name));
2784 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2785 return;
2786 }
2787
2788 /*
2789 * Ensure minimum number of parameters sent.
2790 */
2791
2792 if (parameter_count < 2) {
2793 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2794 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2795 return;
2796 }
2797
2798 /* maybe we can check the quota_fnum */
2799 fsp = file_fsp(req, SVAL(params,0));
2800 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2801 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2802 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2803 return;
2804 }
2805
2806 if (data_count < 40) {
2807 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2808 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2809 return;
2810 }
2811
2812 /* offset to next quota record.
2813 * 4 bytes IVAL(pdata,0)
2814 * unused here...
2815 */
2816
2817 /* sid len */
2818 sid_len = IVAL(pdata,4);
2819
2820 if (data_count < 40+sid_len || (40+sid_len < sid_len)) {
2821 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2822 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2823 return;
2824 }
2825
2826 /* unknown 8 bytes in pdata
2827 * maybe its the change time in NTTIME
2828 */
2829
2830 /* the used space 8 bytes (uint64_t)*/
2831 qt.usedspace = BVAL(pdata,16);
2832
2833 /* the soft quotas 8 bytes (uint64_t)*/
2834 qt.softlim = BVAL(pdata,24);
2835
2836 /* the hard quotas 8 bytes (uint64_t)*/
2837 qt.hardlim = BVAL(pdata,32);
2838
2839 if (!sid_parse(pdata+40,sid_len,&sid)) {
2840 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2841 return;
2842 }
2843
2844 DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2845
2846 /* 44 unknown bytes left... */
2847
2848 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2849 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2850 return;
2851 }
2852
2853 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2854 pdata, data_len);
2855 }
2856 #endif /* HAVE_SYS_QUOTAS */
2857
2858 static void handle_nttrans(connection_struct *conn,
2859 struct trans_state *state,
2860 struct smb_request *req)
2861 {
2862 if (get_Protocol() >= PROTOCOL_NT1) {
2863 req->flags2 |= 0x40; /* IS_LONG_NAME */
2864 SSVAL(req->inbuf,smb_flg2,req->flags2);
2865 }
2866
2867
2868 SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2869
2870 /* Now we must call the relevant NT_TRANS function */
2871 switch(state->call) {
2872 case NT_TRANSACT_CREATE:
2873 {
2874 START_PROFILE(NT_transact_create);
2875 call_nt_transact_create(
2876 conn, req,
2877 &state->setup, state->setup_count,
2878 &state->param, state->total_param,
2879 &state->data, state->total_data,
2880 state->max_data_return);
2881 END_PROFILE(NT_transact_create);
2882 break;
2883 }
2884
2885 case NT_TRANSACT_IOCTL:
2886 {
2887 START_PROFILE(NT_transact_ioctl);
2888 call_nt_transact_ioctl(
2889 conn, req,
2890 &state->setup, state->setup_count,
2891 &state->param, state->total_param,
2892 &state->data, state->total_data,
2893 state->max_data_return);
2894 END_PROFILE(NT_transact_ioctl);
2895 break;
2896 }
2897
2898 case NT_TRANSACT_SET_SECURITY_DESC:
2899 {
2900 START_PROFILE(NT_transact_set_security_desc);
2901 call_nt_transact_set_security_desc(
2902 conn, req,
2903 &state->setup, state->setup_count,
2904 &state->param, state->total_param,
2905 &state->data, state->total_data,
2906 state->max_data_return);
2907 END_PROFILE(NT_transact_set_security_desc);
2908 break;
2909 }
2910
2911 case NT_TRANSACT_NOTIFY_CHANGE:
2912 {
2913 START_PROFILE(NT_transact_notify_change);
2914 call_nt_transact_notify_change(
2915 conn, req,
2916 &state->setup, state->setup_count,
2917 &state->param, state->total_param,
2918 &state->data, state->total_data,
2919 state->max_data_return,
2920 state->max_param_return);
2921 END_PROFILE(NT_transact_notify_change);
2922 break;
2923 }
2924
2925 case NT_TRANSACT_RENAME:
2926 {
2927 START_PROFILE(NT_transact_rename);
2928 call_nt_transact_rename(
2929 conn, req,
2930 &state->setup, state->setup_count,
2931 &state->param, state->total_param,
2932 &state->data, state->total_data,
2933 state->max_data_return);
2934 END_PROFILE(NT_transact_rename);
2935 break;
2936 }
2937
2938 case NT_TRANSACT_QUERY_SECURITY_DESC:
2939 {
2940 START_PROFILE(NT_transact_query_security_desc);
2941 call_nt_transact_query_security_desc(
2942 conn, req,
2943 &state->setup, state->setup_count,
2944 &state->param, state->total_param,
2945 &state->data, state->total_data,
2946 state->max_data_return);
2947 END_PROFILE(NT_transact_query_security_desc);
2948 break;
2949 }
2950
2951 #ifdef HAVE_SYS_QUOTAS
2952 case NT_TRANSACT_GET_USER_QUOTA:
2953 {
2954 START_PROFILE(NT_transact_get_user_quota);
2955 call_nt_transact_get_user_quota(
2956 conn, req,
2957 &state->setup, state->setup_count,
2958 &state->param, state->total_param,
2959 &state->data, state->total_data,
2960 state->max_data_return);
2961 END_PROFILE(NT_transact_get_user_quota);
2962 break;
2963 }
2964
2965 case NT_TRANSACT_SET_USER_QUOTA:
2966 {
2967 START_PROFILE(NT_transact_set_user_quota);
2968 call_nt_transact_set_user_quota(
2969 conn, req,
2970 &state->setup, state->setup_count,
2971 &state->param, state->total_param,
2972 &state->data, state->total_data,
2973 state->max_data_return);
2974 END_PROFILE(NT_transact_set_user_quota);
2975 break;
2976 }
2977 #endif /* HAVE_SYS_QUOTAS */
2978
2979 default:
2980 /* Error in request */
2981 DEBUG(0,("handle_nttrans: Unknown request %d in "
2982 "nttrans call\n", state->call));
2983 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2984 return;
2985 }
2986 return;
2987 }
2988
2989 /****************************************************************************
2990 Reply to a SMBNTtrans.
2991 ****************************************************************************/
2992
2993 void reply_nttrans(struct smb_request *req)
2994 {
2995 connection_struct *conn = req->conn;
2996 uint32_t pscnt;
2997 uint32_t psoff;
2998 uint32_t dscnt;
2999 uint32_t dsoff;
3000 uint16 function_code;
3001 NTSTATUS result;
3002 struct trans_state *state;
3003
3004 START_PROFILE(SMBnttrans);
3005
3006 if (req->wct < 19) {
3007 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3008 END_PROFILE(SMBnttrans);
3009 return;
3010 }
3011
3012 pscnt = IVAL(req->vwv+9, 1);
3013 psoff = IVAL(req->vwv+11, 1);
3014 dscnt = IVAL(req->vwv+13, 1);
3015 dsoff = IVAL(req->vwv+15, 1);
3016 function_code = SVAL(req->vwv+18, 0);
3017
3018 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
3019 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
3020 END_PROFILE(SMBnttrans);
3021 return;
3022 }
3023
3024 result = allow_new_trans(conn->pending_trans, req->mid);
3025 if (!NT_STATUS_IS_OK(result)) {
3026 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
3027 reply_nterror(req, result);
3028 END_PROFILE(SMBnttrans);
3029 return;
3030 }
3031
3032 if ((state = TALLOC_P(conn, struct trans_state)) == NULL) {
3033 reply_nterror(req, NT_STATUS_NO_MEMORY);
3034 END_PROFILE(SMBnttrans);
3035 return;
3036 }
3037
3038 state->cmd = SMBnttrans;
3039
3040 state->mid = req->mid;
3041 state->vuid = req->vuid;
3042 state->total_data = IVAL(req->vwv+3, 1);
3043 state->data = NULL;
3044 state->total_param = IVAL(req->vwv+1, 1);
3045 state->param = NULL;
3046 state->max_data_return = IVAL(req->vwv+7, 1);
3047 state->max_param_return = IVAL(req->vwv+5, 1);
3048
3049 /* setup count is in *words* */
3050 state->setup_count = 2*CVAL(req->vwv+17, 1);
3051 state->setup = NULL;
3052 state->call = function_code;
3053
3054 DEBUG(10, ("num_setup=%u, "
3055 "param_total=%u, this_param=%u, max_param=%u, "
3056 "data_total=%u, this_data=%u, max_data=%u, "
3057 "param_offset=%u, data_offset=%u\n",
3058 (unsigned)state->setup_count,
3059 (unsigned)state->total_param, (unsigned)pscnt,
3060 (unsigned)state->max_param_return,
3061 (unsigned)state->total_data, (unsigned)dscnt,
3062 (unsigned)state->max_data_return,
3063 (unsigned)psoff, (unsigned)dsoff));
3064
3065 /*
3066 * All nttrans messages we handle have smb_wct == 19 +
3067 * state->setup_count. Ensure this is so as a sanity check.
3068 */
3069
3070 if(req->wct != 19 + (state->setup_count/2)) {
3071 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
3072 req->wct, 19 + (state->setup_count/2)));
3073 goto bad_param;
3074 }
3075
3076 /* Don't allow more than 128mb for each value. */
3077 if ((state->total_data > (1024*1024*128)) ||
3078 (state->total_param > (1024*1024*128))) {
3079 reply_nterror(req, NT_STATUS_NO_MEMORY);
3080 END_PROFILE(SMBnttrans);
3081 return;
3082 }
3083
3084 if ((dscnt > state->total_data) || (pscnt > state->total_param))
3085 goto bad_param;
3086
3087 if (state->total_data) {
3088
3089 if (trans_oob(state->total_data, 0, dscnt)
3090 || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
3091 goto bad_param;
3092 }
3093
3094 /* Can't use talloc here, the core routines do realloc on the
3095 * params and data. */
3096 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
3097 DEBUG(0,("reply_nttrans: data malloc fail for %u "
3098 "bytes !\n", (unsigned int)state->total_data));
3099 TALLOC_FREE(state);
3100 reply_nterror(req, NT_STATUS_NO_MEMORY);
3101 END_PROFILE(SMBnttrans);
3102 return;
3103 }
3104
3105 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
3106 }
3107
3108 if (state->total_param) {
3109
3110 if (trans_oob(state->total_param, 0, pscnt)
3111 || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
3112 goto bad_param;
3113 }
3114
3115 /* Can't use talloc here, the core routines do realloc on the
3116 * params and data. */
3117 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
3118 DEBUG(0,("reply_nttrans: param malloc fail for %u "
3119 "bytes !\n", (unsigned int)state->total_param));
3120 SAFE_FREE(state->data);
3121 TALLOC_FREE(state);
3122 reply_nterror(req, NT_STATUS_NO_MEMORY);
3123 END_PROFILE(SMBnttrans);
3124 return;
3125 }
3126
3127 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
3128 }
3129
3130 state->received_data = dscnt;
3131 state->received_param = pscnt;
3132
3133 if(state->setup_count > 0) {
3134 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
3135 state->setup_count));
3136
3137 /*
3138 * No overflow possible here, state->setup_count is an
3139 * unsigned int, being filled by a single byte from
3140 * CVAL(req->vwv+13, 0) above. The cast in the comparison
3141 * below is not necessary, it's here to clarify things. The
3142 * validity of req->vwv and req->wct has been checked in
3143 * init_smb_request already.
3144 */
3145 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
3146 goto bad_param;
3147 }
3148
3149 state->setup = (uint16 *)TALLOC(state, state->setup_count);
3150 if (state->setup == NULL) {
3151 DEBUG(0,("reply_nttrans : Out of memory\n"));
3152 SAFE_FREE(state->data);
3153 SAFE_FREE(state->param);
3154 TALLOC_FREE(state);
3155 reply_nterror(req, NT_STATUS_NO_MEMORY);
3156 END_PROFILE(SMBnttrans);
3157 return;
3158 }
3159
3160 memcpy(state->setup, req->vwv+19, state->setup_count);
3161 dump_data(10, (uint8 *)state->setup, state->setup_count);
3162 }
3163
3164 if ((state->received_data == state->total_data) &&
3165 (state->received_param == state->total_param)) {
3166 handle_nttrans(conn, state, req);
3167 SAFE_FREE(state->param);
3168 SAFE_FREE(state->data);
3169 TALLOC_FREE(state);
3170 END_PROFILE(SMBnttrans);
3171 return;
3172 }
3173
3174 DLIST_ADD(conn->pending_trans, state);
3175
3176 /* We need to send an interim response then receive the rest
3177 of the parameter/data bytes */
3178 reply_outbuf(req, 0, 0);
3179 show_msg((char *)req->outbuf);
3180 END_PROFILE(SMBnttrans);
3181 return;
3182
3183 bad_param:
3184
3185 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
3186 SAFE_FREE(state->data);
3187 SAFE_FREE(state->param);
3188 TALLOC_FREE(state);
3189 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3190 END_PROFILE(SMBnttrans);
3191 return;
3192 }
3193
3194 /****************************************************************************
3195 Reply to a SMBnttranss
3196 ****************************************************************************/
3197
3198 void reply_nttranss(struct smb_request *req)
3199 {
3200 connection_struct *conn = req->conn;
3201 uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
3202 struct trans_state *state;
3203
3204 START_PROFILE(SMBnttranss);
3205
3206 show_msg((char *)req->inbuf);
3207
3208 if (req->wct < 18) {
3209 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3210 END_PROFILE(SMBnttranss);
3211 return;
3212 }
3213
3214 for (state = conn->pending_trans; state != NULL;
3215 state = state->next) {
3216 if (state->mid == req->mid) {
3217 break;
3218 }
3219 }
3220
3221 if ((state == NULL) || (state->cmd != SMBnttrans)) {
3222 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3223 END_PROFILE(SMBnttranss);
3224 return;
3225 }
3226
3227 /* Revise state->total_param and state->total_data in case they have
3228 changed downwards */
3229 if (IVAL(req->vwv+1, 1) < state->total_param) {
3230 state->total_param = IVAL(req->vwv+1, 1);
3231 }
3232 if (IVAL(req->vwv+3, 1) < state->total_data) {
3233 state->total_data = IVAL(req->vwv+3, 1);
3234 }
3235
3236 pcnt = IVAL(req->vwv+5, 1);
3237 poff = IVAL(req->vwv+7, 1);
3238 pdisp = IVAL(req->vwv+9, 1);
3239
3240 dcnt = IVAL(req->vwv+11, 1);
3241 doff = IVAL(req->vwv+13, 1);
3242 ddisp = IVAL(req->vwv+15, 1);
3243
3244 state->received_param += pcnt;
3245 state->received_data += dcnt;
3246
3247 if ((state->received_data > state->total_data) ||
3248 (state->received_param > state->total_param))
3249 goto bad_param;
3250
3251 if (pcnt) {
3252 if (trans_oob(state->total_param, pdisp, pcnt)
3253 || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
3254 goto bad_param;
3255 }
3256 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
3257 }
3258
3259 if (dcnt) {
3260 if (trans_oob(state->total_data, ddisp, dcnt)
3261 || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
3262 goto bad_param;
3263 }
3264 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
3265 }
3266
3267 if ((state->received_param < state->total_param) ||
3268 (state->received_data < state->total_data)) {
3269 END_PROFILE(SMBnttranss);
3270 return;
3271 }
3272
3273 handle_nttrans(conn, state, req);
3274
3275 DLIST_REMOVE(conn->pending_trans, state);
3276 SAFE_FREE(state->data);
3277 SAFE_FREE(state->param);
3278 TALLOC_FREE(state);
3279 END_PROFILE(SMBnttranss);
3280 return;
3281
3282 bad_param:
3283
3284 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
3285 DLIST_REMOVE(conn->pending_trans, state);
3286 SAFE_FREE(state->data);
3287 SAFE_FREE(state->param);
3288 TALLOC_FREE(state);
3289 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3290 END_PROFILE(SMBnttranss);
3291 return;
3292 }
Samba GIT mirror