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Add in fsp->access_mask checks. Not required (underlying system does this)
[Samba/bjacke.git] / source3 / smbd / nttrans.c
blobad585337b8559248b2e7baa3aab402062256d836
1 /*
2 Unix SMB/CIFS implementation.
3 SMB NT transaction handling
4 Copyright (C) Jeremy Allison 1994-2007
5 Copyright (C) Stefan (metze) Metzmacher 2003
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
19 */
20
21 #include "includes.h"
22 #include "smbd/globals.h"
23 #include "fake_file.h"
24 #include "../libcli/security/security.h"
25 #include "../librpc/gen_ndr/ndr_security.h"
26
27 extern const struct generic_mapping file_generic_mapping;
28
29 static char *nttrans_realloc(char **ptr, size_t size)
30 {
31 if (ptr==NULL) {
32 smb_panic("nttrans_realloc() called with NULL ptr");
33 }
34
35 *ptr = (char *)SMB_REALLOC(*ptr, size);
36 if(*ptr == NULL) {
37 return NULL;
38 }
39 memset(*ptr,'\0',size);
40 return *ptr;
41 }
42
43 /****************************************************************************
44 Send the required number of replies back.
45 We assume all fields other than the data fields are
46 set correctly for the type of call.
47 HACK ! Always assumes smb_setup field is zero.
48 ****************************************************************************/
49
50 void send_nt_replies(connection_struct *conn,
51 struct smb_request *req, NTSTATUS nt_error,
52 char *params, int paramsize,
53 char *pdata, int datasize)
54 {
55 int data_to_send = datasize;
56 int params_to_send = paramsize;
57 int useable_space;
58 char *pp = params;
59 char *pd = pdata;
60 int params_sent_thistime, data_sent_thistime, total_sent_thistime;
61 int alignment_offset = 1;
62 int data_alignment_offset = 0;
63 struct smbd_server_connection *sconn = req->sconn;
64 int max_send = sconn->smb1.sessions.max_send;
65
66 /*
67 * If there genuinely are no parameters or data to send just send
68 * the empty packet.
69 */
70
71 if(params_to_send == 0 && data_to_send == 0) {
72 reply_outbuf(req, 18, 0);
73 if (NT_STATUS_V(nt_error)) {
74 error_packet_set((char *)req->outbuf,
75 0, 0, nt_error,
76 __LINE__,__FILE__);
77 }
78 show_msg((char *)req->outbuf);
79 if (!srv_send_smb(sconn,
80 (char *)req->outbuf,
81 true, req->seqnum+1,
82 IS_CONN_ENCRYPTED(conn),
83 &req->pcd)) {
84 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
85 }
86 TALLOC_FREE(req->outbuf);
87 return;
88 }
89
90 /*
91 * When sending params and data ensure that both are nicely aligned.
92 * Only do this alignment when there is also data to send - else
93 * can cause NT redirector problems.
94 */
95
96 if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
97 data_alignment_offset = 4 - (params_to_send % 4);
98 }
99
100 /*
101 * Space is bufsize minus Netbios over TCP header minus SMB header.
102 * The alignment_offset is to align the param bytes on a four byte
103 * boundary (2 bytes for data len, one byte pad).
104 * NT needs this to work correctly.
105 */
106
107 useable_space = max_send - (smb_size
108 + 2 * 18 /* wct */
109 + alignment_offset
110 + data_alignment_offset);
111
112 if (useable_space < 0) {
113 char *msg = talloc_asprintf(
114 talloc_tos(),
115 "send_nt_replies failed sanity useable_space = %d!!!",
116 useable_space);
117 DEBUG(0, ("%s\n", msg));
118 exit_server_cleanly(msg);
119 }
120
121 while (params_to_send || data_to_send) {
122
123 /*
124 * Calculate whether we will totally or partially fill this packet.
125 */
126
127 total_sent_thistime = params_to_send + data_to_send;
128
129 /*
130 * We can never send more than useable_space.
131 */
132
133 total_sent_thistime = MIN(total_sent_thistime, useable_space);
134
135 reply_outbuf(req, 18,
136 total_sent_thistime + alignment_offset
137 + data_alignment_offset);
138
139 /*
140 * We might have had SMBnttranss in req->inbuf, fix that.
141 */
142 SCVAL(req->outbuf, smb_com, SMBnttrans);
143
144 /*
145 * Set total params and data to be sent.
146 */
147
148 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
149 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
150
151 /*
152 * Calculate how many parameters and data we can fit into
153 * this packet. Parameters get precedence.
154 */
155
156 params_sent_thistime = MIN(params_to_send,useable_space);
157 data_sent_thistime = useable_space - params_sent_thistime;
158 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
159
160 SIVAL(req->outbuf, smb_ntr_ParameterCount,
161 params_sent_thistime);
162
163 if(params_sent_thistime == 0) {
164 SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
165 SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
166 } else {
167 /*
168 * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
169 * parameter bytes, however the first 4 bytes of outbuf are
170 * the Netbios over TCP header. Thus use smb_base() to subtract
171 * them from the calculation.
172 */
173
174 SIVAL(req->outbuf,smb_ntr_ParameterOffset,
175 ((smb_buf(req->outbuf)+alignment_offset)
176 - smb_base(req->outbuf)));
177 /*
178 * Absolute displacement of param bytes sent in this packet.
179 */
180
181 SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
182 pp - params);
183 }
184
185 /*
186 * Deal with the data portion.
187 */
188
189 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
190
191 if(data_sent_thistime == 0) {
192 SIVAL(req->outbuf,smb_ntr_DataOffset,0);
193 SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
194 } else {
195 /*
196 * The offset of the data bytes is the offset of the
197 * parameter bytes plus the number of parameters being sent this time.
198 */
199
200 SIVAL(req->outbuf, smb_ntr_DataOffset,
201 ((smb_buf(req->outbuf)+alignment_offset) -
202 smb_base(req->outbuf))
203 + params_sent_thistime + data_alignment_offset);
204 SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
205 }
206
207 /*
208 * Copy the param bytes into the packet.
209 */
210
211 if(params_sent_thistime) {
212 if (alignment_offset != 0) {
213 memset(smb_buf(req->outbuf), 0,
214 alignment_offset);
215 }
216 memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
217 params_sent_thistime);
218 }
219
220 /*
221 * Copy in the data bytes
222 */
223
224 if(data_sent_thistime) {
225 if (data_alignment_offset != 0) {
226 memset((smb_buf(req->outbuf)+alignment_offset+
227 params_sent_thistime), 0,
228 data_alignment_offset);
229 }
230 memcpy(smb_buf(req->outbuf)+alignment_offset
231 +params_sent_thistime+data_alignment_offset,
232 pd,data_sent_thistime);
233 }
234
235 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
236 params_sent_thistime, data_sent_thistime, useable_space));
237 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
238 params_to_send, data_to_send, paramsize, datasize));
239
240 if (NT_STATUS_V(nt_error)) {
241 error_packet_set((char *)req->outbuf,
242 0, 0, nt_error,
243 __LINE__,__FILE__);
244 }
245
246 /* Send the packet */
247 show_msg((char *)req->outbuf);
248 if (!srv_send_smb(sconn,
249 (char *)req->outbuf,
250 true, req->seqnum+1,
251 IS_CONN_ENCRYPTED(conn),
252 &req->pcd)) {
253 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
254 }
255
256 TALLOC_FREE(req->outbuf);
257
258 pp += params_sent_thistime;
259 pd += data_sent_thistime;
260
261 params_to_send -= params_sent_thistime;
262 data_to_send -= data_sent_thistime;
263
264 /*
265 * Sanity check
266 */
267
268 if(params_to_send < 0 || data_to_send < 0) {
269 DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
270 params_to_send, data_to_send));
271 exit_server_cleanly("send_nt_replies: internal error");
272 }
273 }
274 }
275
276 /****************************************************************************
277 Reply to an NT create and X call on a pipe
278 ****************************************************************************/
279
280 static void nt_open_pipe(char *fname, connection_struct *conn,
281 struct smb_request *req, int *ppnum)
282 {
283 files_struct *fsp;
284 NTSTATUS status;
285
286 DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
287
288 /* Strip \\ off the name. */
289 fname++;
290
291 status = open_np_file(req, fname, &fsp);
292 if (!NT_STATUS_IS_OK(status)) {
293 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
294 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
295 ERRDOS, ERRbadpipe);
296 return;
297 }
298 reply_nterror(req, status);
299 return;
300 }
301
302 *ppnum = fsp->fnum;
303 return;
304 }
305
306 /****************************************************************************
307 Reply to an NT create and X call for pipes.
308 ****************************************************************************/
309
310 static void do_ntcreate_pipe_open(connection_struct *conn,
311 struct smb_request *req)
312 {
313 char *fname = NULL;
314 int pnum = -1;
315 char *p = NULL;
316 uint32 flags = IVAL(req->vwv+3, 1);
317 TALLOC_CTX *ctx = talloc_tos();
318
319 srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
320
321 if (!fname) {
322 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
323 ERRDOS, ERRbadpipe);
324 return;
325 }
326 nt_open_pipe(fname, conn, req, &pnum);
327
328 if (req->outbuf) {
329 /* error reply */
330 return;
331 }
332
333 /*
334 * Deal with pipe return.
335 */
336
337 if (flags & EXTENDED_RESPONSE_REQUIRED) {
338 /* This is very strange. We
339 * return 50 words, but only set
340 * the wcnt to 42 ? It's definately
341 * what happens on the wire....
342 */
343 reply_outbuf(req, 50, 0);
344 SCVAL(req->outbuf,smb_wct,42);
345 } else {
346 reply_outbuf(req, 34, 0);
347 }
348
349 p = (char *)req->outbuf + smb_vwv2;
350 p++;
351 SSVAL(p,0,pnum);
352 p += 2;
353 SIVAL(p,0,FILE_WAS_OPENED);
354 p += 4;
355 p += 32;
356 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
357 p += 20;
358 /* File type. */
359 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
360 /* Device state. */
361 SSVAL(p,2, 0x5FF); /* ? */
362 p += 4;
363
364 if (flags & EXTENDED_RESPONSE_REQUIRED) {
365 p += 25;
366 SIVAL(p,0,FILE_GENERIC_ALL);
367 /*
368 * For pipes W2K3 seems to return
369 * 0x12019B next.
370 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
371 */
372 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
373 }
374
375 DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
376
377 chain_reply(req);
378 }
379
380 struct case_semantics_state {
381 connection_struct *conn;
382 bool case_sensitive;
383 bool case_preserve;
384 bool short_case_preserve;
385 };
386
387 /****************************************************************************
388 Restore case semantics.
389 ****************************************************************************/
390
391 static int restore_case_semantics(struct case_semantics_state *state)
392 {
393 state->conn->case_sensitive = state->case_sensitive;
394 state->conn->case_preserve = state->case_preserve;
395 state->conn->short_case_preserve = state->short_case_preserve;
396 return 0;
397 }
398
399 /****************************************************************************
400 Save case semantics.
401 ****************************************************************************/
402
403 static struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx,
404 connection_struct *conn)
405 {
406 struct case_semantics_state *result;
407
408 if (!(result = talloc(mem_ctx, struct case_semantics_state))) {
409 return NULL;
410 }
411
412 result->conn = conn;
413 result->case_sensitive = conn->case_sensitive;
414 result->case_preserve = conn->case_preserve;
415 result->short_case_preserve = conn->short_case_preserve;
416
417 /* Set to POSIX. */
418 conn->case_sensitive = True;
419 conn->case_preserve = True;
420 conn->short_case_preserve = True;
421
422 talloc_set_destructor(result, restore_case_semantics);
423
424 return result;
425 }
426
427 /****************************************************************************
428 Reply to an NT create and X call.
429 ****************************************************************************/
430
431 void reply_ntcreate_and_X(struct smb_request *req)
432 {
433 connection_struct *conn = req->conn;
434 struct smb_filename *smb_fname = NULL;
435 char *fname = NULL;
436 uint32 flags;
437 uint32 access_mask;
438 uint32 file_attributes;
439 uint32 share_access;
440 uint32 create_disposition;
441 uint32 create_options;
442 uint16 root_dir_fid;
443 uint64_t allocation_size;
444 /* Breakout the oplock request bits so we can set the
445 reply bits separately. */
446 uint32 fattr=0;
447 SMB_OFF_T file_len = 0;
448 int info = 0;
449 files_struct *fsp = NULL;
450 char *p = NULL;
451 struct timespec create_timespec;
452 struct timespec c_timespec;
453 struct timespec a_timespec;
454 struct timespec m_timespec;
455 struct timespec write_time_ts;
456 NTSTATUS status;
457 int oplock_request;
458 uint8_t oplock_granted = NO_OPLOCK_RETURN;
459 struct case_semantics_state *case_state = NULL;
460 TALLOC_CTX *ctx = talloc_tos();
461
462 START_PROFILE(SMBntcreateX);
463
464 if (req->wct < 24) {
465 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
466 goto out;
467 }
468
469 flags = IVAL(req->vwv+3, 1);
470 access_mask = IVAL(req->vwv+7, 1);
471 file_attributes = IVAL(req->vwv+13, 1);
472 share_access = IVAL(req->vwv+15, 1);
473 create_disposition = IVAL(req->vwv+17, 1);
474 create_options = IVAL(req->vwv+19, 1);
475 root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
476
477 allocation_size = (uint64_t)IVAL(req->vwv+9, 1);
478 #ifdef LARGE_SMB_OFF_T
479 allocation_size |= (((uint64_t)IVAL(req->vwv+11, 1)) << 32);
480 #endif
481
482 srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
483 STR_TERMINATE, &status);
484
485 if (!NT_STATUS_IS_OK(status)) {
486 reply_nterror(req, status);
487 goto out;
488 }
489
490 DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
491 "file_attributes = 0x%x, share_access = 0x%x, "
492 "create_disposition = 0x%x create_options = 0x%x "
493 "root_dir_fid = 0x%x, fname = %s\n",
494 (unsigned int)flags,
495 (unsigned int)access_mask,
496 (unsigned int)file_attributes,
497 (unsigned int)share_access,
498 (unsigned int)create_disposition,
499 (unsigned int)create_options,
500 (unsigned int)root_dir_fid,
501 fname));
502
503 /*
504 * we need to remove ignored bits when they come directly from the client
505 * because we reuse some of them for internal stuff
506 */
507 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
508
509 /*
510 * If it's an IPC, use the pipe handler.
511 */
512
513 if (IS_IPC(conn)) {
514 if (lp_nt_pipe_support()) {
515 do_ntcreate_pipe_open(conn, req);
516 goto out;
517 }
518 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
519 goto out;
520 }
521
522 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
523 if (oplock_request) {
524 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
525 ? BATCH_OPLOCK : 0;
526 }
527
528 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
529 case_state = set_posix_case_semantics(ctx, conn);
530 if (!case_state) {
531 reply_nterror(req, NT_STATUS_NO_MEMORY);
532 goto out;
533 }
534 }
535
536 status = filename_convert(ctx,
537 conn,
538 req->flags2 & FLAGS2_DFS_PATHNAMES,
539 fname,
540 0,
541 NULL,
542 &smb_fname);
543
544 TALLOC_FREE(case_state);
545
546 if (!NT_STATUS_IS_OK(status)) {
547 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
548 reply_botherror(req,
549 NT_STATUS_PATH_NOT_COVERED,
550 ERRSRV, ERRbadpath);
551 goto out;
552 }
553 reply_nterror(req, status);
554 goto out;
555 }
556
557 /*
558 * Bug #6898 - clients using Windows opens should
559 * never be able to set this attribute into the
560 * VFS.
561 */
562 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
563
564 status = SMB_VFS_CREATE_FILE(
565 conn, /* conn */
566 req, /* req */
567 root_dir_fid, /* root_dir_fid */
568 smb_fname, /* fname */
569 access_mask, /* access_mask */
570 share_access, /* share_access */
571 create_disposition, /* create_disposition*/
572 create_options, /* create_options */
573 file_attributes, /* file_attributes */
574 oplock_request, /* oplock_request */
575 allocation_size, /* allocation_size */
576 0, /* private_flags */
577 NULL, /* sd */
578 NULL, /* ea_list */
579 &fsp, /* result */
580 &info); /* pinfo */
581
582 if (!NT_STATUS_IS_OK(status)) {
583 if (open_was_deferred(req->mid)) {
584 /* We have re-scheduled this call, no error. */
585 goto out;
586 }
587 reply_openerror(req, status);
588 goto out;
589 }
590
591 /* Ensure we're pointing at the correct stat struct. */
592 TALLOC_FREE(smb_fname);
593 smb_fname = fsp->fsp_name;
594
595 /*
596 * If the caller set the extended oplock request bit
597 * and we granted one (by whatever means) - set the
598 * correct bit for extended oplock reply.
599 */
600
601 if (oplock_request &&
602 (lp_fake_oplocks(SNUM(conn))
603 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
604
605 /*
606 * Exclusive oplock granted
607 */
608
609 if (flags & REQUEST_BATCH_OPLOCK) {
610 oplock_granted = BATCH_OPLOCK_RETURN;
611 } else {
612 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
613 }
614 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
615 oplock_granted = LEVEL_II_OPLOCK_RETURN;
616 } else {
617 oplock_granted = NO_OPLOCK_RETURN;
618 }
619
620 file_len = smb_fname->st.st_ex_size;
621
622 if (flags & EXTENDED_RESPONSE_REQUIRED) {
623 /* This is very strange. We
624 * return 50 words, but only set
625 * the wcnt to 42 ? It's definately
626 * what happens on the wire....
627 */
628 reply_outbuf(req, 50, 0);
629 SCVAL(req->outbuf,smb_wct,42);
630 } else {
631 reply_outbuf(req, 34, 0);
632 }
633
634 p = (char *)req->outbuf + smb_vwv2;
635
636 SCVAL(p, 0, oplock_granted);
637
638 p++;
639 SSVAL(p,0,fsp->fnum);
640 p += 2;
641 if ((create_disposition == FILE_SUPERSEDE)
642 && (info == FILE_WAS_OVERWRITTEN)) {
643 SIVAL(p,0,FILE_WAS_SUPERSEDED);
644 } else {
645 SIVAL(p,0,info);
646 }
647 p += 4;
648
649 fattr = dos_mode(conn, smb_fname);
650 if (fattr == 0) {
651 fattr = FILE_ATTRIBUTE_NORMAL;
652 }
653
654 /* Deal with other possible opens having a modified
655 write time. JRA. */
656 ZERO_STRUCT(write_time_ts);
657 get_file_infos(fsp->file_id, NULL, &write_time_ts);
658 if (!null_timespec(write_time_ts)) {
659 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
660 }
661
662 /* Create time. */
663 create_timespec = get_create_timespec(conn, fsp, smb_fname);
664 a_timespec = smb_fname->st.st_ex_atime;
665 m_timespec = smb_fname->st.st_ex_mtime;
666 c_timespec = get_change_timespec(conn, fsp, smb_fname);
667
668 if (lp_dos_filetime_resolution(SNUM(conn))) {
669 dos_filetime_timespec(&create_timespec);
670 dos_filetime_timespec(&a_timespec);
671 dos_filetime_timespec(&m_timespec);
672 dos_filetime_timespec(&c_timespec);
673 }
674
675 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
676 p += 8;
677 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
678 p += 8;
679 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
680 p += 8;
681 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
682 p += 8;
683 SIVAL(p,0,fattr); /* File Attributes. */
684 p += 4;
685 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
686 p += 8;
687 SOFF_T(p,0,file_len);
688 p += 8;
689 if (flags & EXTENDED_RESPONSE_REQUIRED) {
690 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
691 size_t num_names = 0;
692 unsigned int num_streams;
693 struct stream_struct *streams = NULL;
694
695 /* Do we have any EA's ? */
696 status = get_ea_names_from_file(ctx, conn, fsp,
697 smb_fname->base_name, NULL, &num_names);
698 if (NT_STATUS_IS_OK(status) && num_names) {
699 file_status &= ~NO_EAS;
700 }
701 status = SMB_VFS_STREAMINFO(conn, NULL, smb_fname->base_name, ctx,
702 &num_streams, &streams);
703 /* There is always one stream, ::$DATA. */
704 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
705 file_status &= ~NO_SUBSTREAMS;
706 }
707 TALLOC_FREE(streams);
708 SSVAL(p,2,file_status);
709 }
710 p += 4;
711 SCVAL(p,0,fsp->is_directory ? 1 : 0);
712
713 if (flags & EXTENDED_RESPONSE_REQUIRED) {
714 uint32 perms = 0;
715 p += 25;
716 if (fsp->is_directory ||
717 can_write_to_file(conn, smb_fname)) {
718 perms = FILE_GENERIC_ALL;
719 } else {
720 perms = FILE_GENERIC_READ|FILE_EXECUTE;
721 }
722 SIVAL(p,0,perms);
723 }
724
725 DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
726 fsp->fnum, smb_fname_str_dbg(smb_fname)));
727
728 chain_reply(req);
729 out:
730 END_PROFILE(SMBntcreateX);
731 return;
732 }
733
734 /****************************************************************************
735 Reply to a NT_TRANSACT_CREATE call to open a pipe.
736 ****************************************************************************/
737
738 static void do_nt_transact_create_pipe(connection_struct *conn,
739 struct smb_request *req,
740 uint16 **ppsetup, uint32 setup_count,
741 char **ppparams, uint32 parameter_count,
742 char **ppdata, uint32 data_count)
743 {
744 char *fname = NULL;
745 char *params = *ppparams;
746 int pnum = -1;
747 char *p = NULL;
748 NTSTATUS status;
749 size_t param_len;
750 uint32 flags;
751 TALLOC_CTX *ctx = talloc_tos();
752
753 /*
754 * Ensure minimum number of parameters sent.
755 */
756
757 if(parameter_count < 54) {
758 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
759 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
760 return;
761 }
762
763 flags = IVAL(params,0);
764
765 srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
766 parameter_count-53, STR_TERMINATE,
767 &status);
768 if (!NT_STATUS_IS_OK(status)) {
769 reply_nterror(req, status);
770 return;
771 }
772
773 nt_open_pipe(fname, conn, req, &pnum);
774
775 if (req->outbuf) {
776 /* Error return */
777 return;
778 }
779
780 /* Realloc the size of parameters and data we will return */
781 if (flags & EXTENDED_RESPONSE_REQUIRED) {
782 /* Extended response is 32 more byyes. */
783 param_len = 101;
784 } else {
785 param_len = 69;
786 }
787 params = nttrans_realloc(ppparams, param_len);
788 if(params == NULL) {
789 reply_nterror(req, NT_STATUS_NO_MEMORY);
790 return;
791 }
792
793 p = params;
794 SCVAL(p,0,NO_OPLOCK_RETURN);
795
796 p += 2;
797 SSVAL(p,0,pnum);
798 p += 2;
799 SIVAL(p,0,FILE_WAS_OPENED);
800 p += 8;
801
802 p += 32;
803 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
804 p += 20;
805 /* File type. */
806 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
807 /* Device state. */
808 SSVAL(p,2, 0x5FF); /* ? */
809 p += 4;
810
811 if (flags & EXTENDED_RESPONSE_REQUIRED) {
812 p += 25;
813 SIVAL(p,0,FILE_GENERIC_ALL);
814 /*
815 * For pipes W2K3 seems to return
816 * 0x12019B next.
817 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
818 */
819 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
820 }
821
822 DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
823
824 /* Send the required number of replies */
825 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
826
827 return;
828 }
829
830 /****************************************************************************
831 Internal fn to set security descriptors.
832 ****************************************************************************/
833
834 NTSTATUS set_sd(files_struct *fsp, uint8_t *data, uint32_t sd_len,
835 uint32_t security_info_sent)
836 {
837 struct security_descriptor *psd = NULL;
838 NTSTATUS status;
839
840 if (sd_len == 0) {
841 return NT_STATUS_INVALID_PARAMETER;
842 }
843
844 if (!CAN_WRITE(fsp->conn)) {
845 return NT_STATUS_ACCESS_DENIED;
846 }
847
848 if (!lp_nt_acl_support(SNUM(fsp->conn))) {
849 return NT_STATUS_OK;
850 }
851
852 status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
853
854 if (!NT_STATUS_IS_OK(status)) {
855 return status;
856 }
857
858 if (psd->owner_sid == NULL) {
859 security_info_sent &= ~SECINFO_OWNER;
860 }
861 if (psd->group_sid == NULL) {
862 security_info_sent &= ~SECINFO_GROUP;
863 }
864
865 /* Ensure we have at least one thing set. */
866 if ((security_info_sent & (SECINFO_OWNER|SECINFO_GROUP|SECINFO_DACL|SECINFO_SACL)) == 0) {
867 return NT_STATUS_INVALID_PARAMETER;
868 }
869
870 /* Ensure we have the rights to do this. */
871 if (security_info_sent & SECINFO_OWNER) {
872 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
873 return NT_STATUS_ACCESS_DENIED;
874 }
875 }
876
877 if (security_info_sent & SECINFO_GROUP) {
878 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
879 return NT_STATUS_ACCESS_DENIED;
880 }
881 }
882
883 if (security_info_sent & SECINFO_DACL) {
884 if (!(fsp->access_mask & SEC_STD_WRITE_DAC)) {
885 return NT_STATUS_ACCESS_DENIED;
886 }
887 /* Convert all the generic bits. */
888 if (psd->dacl) {
889 security_acl_map_generic(psd->dacl, &file_generic_mapping);
890 }
891 }
892
893 if (security_info_sent & SECINFO_SACL) {
894 if (!(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
895 return NT_STATUS_ACCESS_DENIED;
896 }
897 /* Convert all the generic bits. */
898 if (psd->sacl) {
899 security_acl_map_generic(psd->sacl, &file_generic_mapping);
900 }
901 }
902
903 if (DEBUGLEVEL >= 10) {
904 DEBUG(10,("set_sd for file %s\n", fsp_str_dbg(fsp)));
905 NDR_PRINT_DEBUG(security_descriptor, psd);
906 }
907
908 status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
909
910 TALLOC_FREE(psd);
911
912 return status;
913 }
914
915 /****************************************************************************
916 Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
917 ****************************************************************************/
918
919 struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
920 {
921 struct ea_list *ea_list_head = NULL;
922 size_t offset = 0;
923
924 if (data_size < 4) {
925 return NULL;
926 }
927
928 while (offset + 4 <= data_size) {
929 size_t next_offset = IVAL(pdata,offset);
930 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
931
932 if (!eal) {
933 return NULL;
934 }
935
936 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
937 if (next_offset == 0) {
938 break;
939 }
940 offset += next_offset;
941 }
942
943 return ea_list_head;
944 }
945
946 /****************************************************************************
947 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
948 ****************************************************************************/
949
950 static void call_nt_transact_create(connection_struct *conn,
951 struct smb_request *req,
952 uint16 **ppsetup, uint32 setup_count,
953 char **ppparams, uint32 parameter_count,
954 char **ppdata, uint32 data_count,
955 uint32 max_data_count)
956 {
957 struct smb_filename *smb_fname = NULL;
958 char *fname = NULL;
959 char *params = *ppparams;
960 char *data = *ppdata;
961 /* Breakout the oplock request bits so we can set the reply bits separately. */
962 uint32 fattr=0;
963 SMB_OFF_T file_len = 0;
964 int info = 0;
965 files_struct *fsp = NULL;
966 char *p = NULL;
967 uint32 flags;
968 uint32 access_mask;
969 uint32 file_attributes;
970 uint32 share_access;
971 uint32 create_disposition;
972 uint32 create_options;
973 uint32 sd_len;
974 struct security_descriptor *sd = NULL;
975 uint32 ea_len;
976 uint16 root_dir_fid;
977 struct timespec create_timespec;
978 struct timespec c_timespec;
979 struct timespec a_timespec;
980 struct timespec m_timespec;
981 struct timespec write_time_ts;
982 struct ea_list *ea_list = NULL;
983 NTSTATUS status;
984 size_t param_len;
985 uint64_t allocation_size;
986 int oplock_request;
987 uint8_t oplock_granted;
988 struct case_semantics_state *case_state = NULL;
989 TALLOC_CTX *ctx = talloc_tos();
990
991 DEBUG(5,("call_nt_transact_create\n"));
992
993 /*
994 * If it's an IPC, use the pipe handler.
995 */
996
997 if (IS_IPC(conn)) {
998 if (lp_nt_pipe_support()) {
999 do_nt_transact_create_pipe(
1000 conn, req,
1001 ppsetup, setup_count,
1002 ppparams, parameter_count,
1003 ppdata, data_count);
1004 goto out;
1005 }
1006 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1007 goto out;
1008 }
1009
1010 /*
1011 * Ensure minimum number of parameters sent.
1012 */
1013
1014 if(parameter_count < 54) {
1015 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1016 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1017 goto out;
1018 }
1019
1020 flags = IVAL(params,0);
1021 access_mask = IVAL(params,8);
1022 file_attributes = IVAL(params,20);
1023 share_access = IVAL(params,24);
1024 create_disposition = IVAL(params,28);
1025 create_options = IVAL(params,32);
1026 sd_len = IVAL(params,36);
1027 ea_len = IVAL(params,40);
1028 root_dir_fid = (uint16)IVAL(params,4);
1029 allocation_size = (uint64_t)IVAL(params,12);
1030 #ifdef LARGE_SMB_OFF_T
1031 allocation_size |= (((uint64_t)IVAL(params,16)) << 32);
1032 #endif
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, 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) & (aHIDDEN | aSYSTEM)) {
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 aARCH 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
1499 START_PROFILE(SMBntrename);
1500
1501 if (req->wct < 4) {
1502 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1503 goto out;
1504 }
1505
1506 attrs = SVAL(req->vwv+0, 0);
1507 rename_type = SVAL(req->vwv+1, 0);
1508
1509 p = (const char *)req->buf + 1;
1510 p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1511 &status, &src_has_wcard);
1512 if (!NT_STATUS_IS_OK(status)) {
1513 reply_nterror(req, status);
1514 goto out;
1515 }
1516
1517 if (ms_has_wild(oldname)) {
1518 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1519 goto out;
1520 }
1521
1522 p++;
1523 p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1524 &status, &dest_has_wcard);
1525 if (!NT_STATUS_IS_OK(status)) {
1526 reply_nterror(req, status);
1527 goto out;
1528 }
1529
1530 /* The newname must begin with a ':' if the oldname contains a ':'. */
1531 if (strchr_m(oldname, ':') && (newname[0] != ':')) {
1532 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1533 goto out;
1534 }
1535
1536 /*
1537 * If this is a rename operation, allow wildcards and save the
1538 * destination's last component.
1539 */
1540 if (rename_type == RENAME_FLAG_RENAME) {
1541 ucf_flags_src = UCF_COND_ALLOW_WCARD_LCOMP;
1542 ucf_flags_dst = UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1543 }
1544
1545 /* rename_internals() calls unix_convert(), so don't call it here. */
1546 status = filename_convert(ctx, conn,
1547 req->flags2 & FLAGS2_DFS_PATHNAMES,
1548 oldname,
1549 ucf_flags_src,
1550 NULL,
1551 &smb_fname_old);
1552 if (!NT_STATUS_IS_OK(status)) {
1553 if (NT_STATUS_EQUAL(status,
1554 NT_STATUS_PATH_NOT_COVERED)) {
1555 reply_botherror(req,
1556 NT_STATUS_PATH_NOT_COVERED,
1557 ERRSRV, ERRbadpath);
1558 goto out;
1559 }
1560 reply_nterror(req, status);
1561 goto out;
1562 }
1563
1564 status = filename_convert(ctx, conn,
1565 req->flags2 & FLAGS2_DFS_PATHNAMES,
1566 newname,
1567 ucf_flags_dst,
1568 &dest_has_wcard,
1569 &smb_fname_new);
1570 if (!NT_STATUS_IS_OK(status)) {
1571 if (NT_STATUS_EQUAL(status,
1572 NT_STATUS_PATH_NOT_COVERED)) {
1573 reply_botherror(req,
1574 NT_STATUS_PATH_NOT_COVERED,
1575 ERRSRV, ERRbadpath);
1576 goto out;
1577 }
1578 reply_nterror(req, status);
1579 goto out;
1580 }
1581
1582 DEBUG(3,("reply_ntrename: %s -> %s\n",
1583 smb_fname_str_dbg(smb_fname_old),
1584 smb_fname_str_dbg(smb_fname_new)));
1585
1586 switch(rename_type) {
1587 case RENAME_FLAG_RENAME:
1588 status = rename_internals(ctx, conn, req,
1589 smb_fname_old, smb_fname_new,
1590 attrs, False, src_has_wcard,
1591 dest_has_wcard,
1592 DELETE_ACCESS);
1593 break;
1594 case RENAME_FLAG_HARD_LINK:
1595 if (src_has_wcard || dest_has_wcard) {
1596 /* No wildcards. */
1597 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1598 } else {
1599 status = hardlink_internals(ctx, conn,
1600 req,
1601 false,
1602 smb_fname_old,
1603 smb_fname_new);
1604 }
1605 break;
1606 case RENAME_FLAG_COPY:
1607 if (src_has_wcard || dest_has_wcard) {
1608 /* No wildcards. */
1609 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1610 } else {
1611 status = copy_internals(ctx, conn, req,
1612 smb_fname_old,
1613 smb_fname_new,
1614 attrs);
1615 }
1616 break;
1617 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1618 status = NT_STATUS_INVALID_PARAMETER;
1619 break;
1620 default:
1621 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1622 break;
1623 }
1624
1625 if (!NT_STATUS_IS_OK(status)) {
1626 if (open_was_deferred(req->mid)) {
1627 /* We have re-scheduled this call. */
1628 goto out;
1629 }
1630
1631 reply_nterror(req, status);
1632 goto out;
1633 }
1634
1635 reply_outbuf(req, 0, 0);
1636 out:
1637 END_PROFILE(SMBntrename);
1638 return;
1639 }
1640
1641 /****************************************************************************
1642 Reply to a notify change - queue the request and
1643 don't allow a directory to be opened.
1644 ****************************************************************************/
1645
1646 static void smbd_smb1_notify_reply(struct smb_request *req,
1647 NTSTATUS error_code,
1648 uint8_t *buf, size_t len)
1649 {
1650 send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1651 }
1652
1653 static void call_nt_transact_notify_change(connection_struct *conn,
1654 struct smb_request *req,
1655 uint16 **ppsetup,
1656 uint32 setup_count,
1657 char **ppparams,
1658 uint32 parameter_count,
1659 char **ppdata, uint32 data_count,
1660 uint32 max_data_count,
1661 uint32 max_param_count)
1662 {
1663 uint16 *setup = *ppsetup;
1664 files_struct *fsp;
1665 uint32 filter;
1666 NTSTATUS status;
1667 bool recursive;
1668
1669 if(setup_count < 6) {
1670 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1671 return;
1672 }
1673
1674 fsp = file_fsp(req, SVAL(setup,4));
1675 filter = IVAL(setup, 0);
1676 recursive = (SVAL(setup, 6) != 0) ? True : False;
1677
1678 DEBUG(3,("call_nt_transact_notify_change\n"));
1679
1680 if(!fsp) {
1681 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1682 return;
1683 }
1684
1685 {
1686 char *filter_string;
1687
1688 if (!(filter_string = notify_filter_string(NULL, filter))) {
1689 reply_nterror(req,NT_STATUS_NO_MEMORY);
1690 return;
1691 }
1692
1693 DEBUG(3,("call_nt_transact_notify_change: notify change "
1694 "called on %s, filter = %s, recursive = %d\n",
1695 fsp_str_dbg(fsp), filter_string, recursive));
1696
1697 TALLOC_FREE(filter_string);
1698 }
1699
1700 if((!fsp->is_directory) || (conn != fsp->conn)) {
1701 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1702 return;
1703 }
1704
1705 if (fsp->notify == NULL) {
1706
1707 status = change_notify_create(fsp, filter, recursive);
1708
1709 if (!NT_STATUS_IS_OK(status)) {
1710 DEBUG(10, ("change_notify_create returned %s\n",
1711 nt_errstr(status)));
1712 reply_nterror(req, status);
1713 return;
1714 }
1715 }
1716
1717 if (fsp->notify->num_changes != 0) {
1718
1719 /*
1720 * We've got changes pending, respond immediately
1721 */
1722
1723 /*
1724 * TODO: write a torture test to check the filtering behaviour
1725 * here.
1726 */
1727
1728 change_notify_reply(req,
1729 NT_STATUS_OK,
1730 max_param_count,
1731 fsp->notify,
1732 smbd_smb1_notify_reply);
1733
1734 /*
1735 * change_notify_reply() above has independently sent its
1736 * results
1737 */
1738 return;
1739 }
1740
1741 /*
1742 * No changes pending, queue the request
1743 */
1744
1745 status = change_notify_add_request(req,
1746 max_param_count,
1747 filter,
1748 recursive, fsp,
1749 smbd_smb1_notify_reply);
1750 if (!NT_STATUS_IS_OK(status)) {
1751 reply_nterror(req, status);
1752 }
1753 return;
1754 }
1755
1756 /****************************************************************************
1757 Reply to an NT transact rename command.
1758 ****************************************************************************/
1759
1760 static void call_nt_transact_rename(connection_struct *conn,
1761 struct smb_request *req,
1762 uint16 **ppsetup, uint32 setup_count,
1763 char **ppparams, uint32 parameter_count,
1764 char **ppdata, uint32 data_count,
1765 uint32 max_data_count)
1766 {
1767 char *params = *ppparams;
1768 char *new_name = NULL;
1769 files_struct *fsp = NULL;
1770 bool dest_has_wcard = False;
1771 NTSTATUS status;
1772 TALLOC_CTX *ctx = talloc_tos();
1773
1774 if(parameter_count < 5) {
1775 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1776 return;
1777 }
1778
1779 fsp = file_fsp(req, SVAL(params, 0));
1780 if (!check_fsp(conn, req, fsp)) {
1781 return;
1782 }
1783 srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1784 parameter_count - 4,
1785 STR_TERMINATE, &status, &dest_has_wcard);
1786 if (!NT_STATUS_IS_OK(status)) {
1787 reply_nterror(req, status);
1788 return;
1789 }
1790
1791 /*
1792 * W2K3 ignores this request as the RAW-RENAME test
1793 * demonstrates, so we do.
1794 */
1795 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1796
1797 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1798 fsp_str_dbg(fsp), new_name));
1799
1800 return;
1801 }
1802
1803 /******************************************************************************
1804 Fake up a completely empty SD.
1805 *******************************************************************************/
1806
1807 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, struct security_descriptor **ppsd)
1808 {
1809 size_t sd_size;
1810
1811 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1812 if(!*ppsd) {
1813 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1814 return NT_STATUS_NO_MEMORY;
1815 }
1816
1817 return NT_STATUS_OK;
1818 }
1819
1820 /****************************************************************************
1821 Reply to query a security descriptor.
1822 Callable from SMB2 and SMB2.
1823 If it returns NT_STATUS_BUFFER_TOO_SMALL, pdata_size is initialized with
1824 the required size.
1825 ****************************************************************************/
1826
1827 NTSTATUS smbd_do_query_security_desc(connection_struct *conn,
1828 TALLOC_CTX *mem_ctx,
1829 files_struct *fsp,
1830 uint32_t security_info_wanted,
1831 uint32_t max_data_count,
1832 uint8_t **ppmarshalled_sd,
1833 size_t *psd_size)
1834 {
1835 NTSTATUS status;
1836 struct security_descriptor *psd = NULL;
1837
1838 /*
1839 * Get the permissions to return.
1840 */
1841
1842 if ((security_info_wanted & SECINFO_SACL) &&
1843 !(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
1844 return NT_STATUS_ACCESS_DENIED;
1845 }
1846
1847 if ((security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|SECINFO_GROUP)) &&
1848 !(fsp->access_mask & SEC_STD_READ_CONTROL)) {
1849 return NT_STATUS_ACCESS_DENIED;
1850 }
1851
1852 if (!lp_nt_acl_support(SNUM(conn))) {
1853 status = get_null_nt_acl(mem_ctx, &psd);
1854 } else {
1855 status = SMB_VFS_FGET_NT_ACL(
1856 fsp, security_info_wanted, &psd);
1857 }
1858 if (!NT_STATUS_IS_OK(status)) {
1859 return status;
1860 }
1861
1862 if (!(security_info_wanted & SECINFO_OWNER)) {
1863 psd->owner_sid = NULL;
1864 }
1865 if (!(security_info_wanted & SECINFO_GROUP)) {
1866 psd->group_sid = NULL;
1867 }
1868 if (!(security_info_wanted & SECINFO_DACL)) {
1869 psd->dacl = NULL;
1870 }
1871 if (!(security_info_wanted & SECINFO_SACL)) {
1872 psd->sacl = NULL;
1873 }
1874
1875 /* If the SACL/DACL is NULL, but was requested, we mark that it is
1876 * present in the reply to match Windows behavior */
1877 if (psd->sacl == NULL &&
1878 security_info_wanted & SECINFO_SACL)
1879 psd->type |= SEC_DESC_SACL_PRESENT;
1880 if (psd->dacl == NULL &&
1881 security_info_wanted & SECINFO_DACL)
1882 psd->type |= SEC_DESC_DACL_PRESENT;
1883
1884 *psd_size = ndr_size_security_descriptor(psd, 0);
1885
1886 DEBUG(3,("smbd_do_query_security_desc: sd_size = %lu.\n",
1887 (unsigned long)*psd_size));
1888
1889 if (DEBUGLEVEL >= 10) {
1890 DEBUG(10,("smbd_do_query_security_desc for file %s\n",
1891 fsp_str_dbg(fsp)));
1892 NDR_PRINT_DEBUG(security_descriptor, psd);
1893 }
1894
1895 if (max_data_count < *psd_size) {
1896 TALLOC_FREE(psd);
1897 return NT_STATUS_BUFFER_TOO_SMALL;
1898 }
1899
1900 status = marshall_sec_desc(mem_ctx, psd,
1901 ppmarshalled_sd, psd_size);
1902
1903 if (!NT_STATUS_IS_OK(status)) {
1904 TALLOC_FREE(psd);
1905 return status;
1906 }
1907
1908 TALLOC_FREE(psd);
1909 return NT_STATUS_OK;
1910 }
1911
1912 /****************************************************************************
1913 SMB1 reply to query a security descriptor.
1914 ****************************************************************************/
1915
1916 static void call_nt_transact_query_security_desc(connection_struct *conn,
1917 struct smb_request *req,
1918 uint16 **ppsetup,
1919 uint32 setup_count,
1920 char **ppparams,
1921 uint32 parameter_count,
1922 char **ppdata,
1923 uint32 data_count,
1924 uint32 max_data_count)
1925 {
1926 char *params = *ppparams;
1927 char *data = *ppdata;
1928 size_t sd_size = 0;
1929 uint32 security_info_wanted;
1930 files_struct *fsp = NULL;
1931 NTSTATUS status;
1932 uint8_t *marshalled_sd = NULL;
1933
1934 if(parameter_count < 8) {
1935 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1936 return;
1937 }
1938
1939 fsp = file_fsp(req, SVAL(params,0));
1940 if(!fsp) {
1941 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1942 return;
1943 }
1944
1945 security_info_wanted = IVAL(params,4);
1946
1947 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
1948 "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
1949 (unsigned int)security_info_wanted));
1950
1951 params = nttrans_realloc(ppparams, 4);
1952 if(params == NULL) {
1953 reply_nterror(req, NT_STATUS_NO_MEMORY);
1954 return;
1955 }
1956
1957 /*
1958 * Get the permissions to return.
1959 */
1960
1961 status = smbd_do_query_security_desc(conn,
1962 talloc_tos(),
1963 fsp,
1964 security_info_wanted,
1965 max_data_count,
1966 &marshalled_sd,
1967 &sd_size);
1968
1969 if (NT_STATUS_EQUAL(status, NT_STATUS_BUFFER_TOO_SMALL)) {
1970 SIVAL(params,0,(uint32_t)sd_size);
1971 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1972 params, 4, NULL, 0);
1973 return;
1974 }
1975
1976 if (!NT_STATUS_IS_OK(status)) {
1977 reply_nterror(req, status);
1978 return;
1979 }
1980
1981 SMB_ASSERT(sd_size > 0);
1982
1983 SIVAL(params,0,(uint32_t)sd_size);
1984
1985 if (max_data_count < sd_size) {
1986 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1987 params, 4, NULL, 0);
1988 return;
1989 }
1990
1991 /*
1992 * Allocate the data we will return.
1993 */
1994
1995 data = nttrans_realloc(ppdata, sd_size);
1996 if(data == NULL) {
1997 reply_nterror(req, NT_STATUS_NO_MEMORY);
1998 return;
1999 }
2000
2001 memcpy(data, marshalled_sd, sd_size);
2002
2003 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
2004
2005 return;
2006 }
2007
2008 /****************************************************************************
2009 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
2010 ****************************************************************************/
2011
2012 static void call_nt_transact_set_security_desc(connection_struct *conn,
2013 struct smb_request *req,
2014 uint16 **ppsetup,
2015 uint32 setup_count,
2016 char **ppparams,
2017 uint32 parameter_count,
2018 char **ppdata,
2019 uint32 data_count,
2020 uint32 max_data_count)
2021 {
2022 char *params= *ppparams;
2023 char *data = *ppdata;
2024 files_struct *fsp = NULL;
2025 uint32 security_info_sent = 0;
2026 NTSTATUS status;
2027
2028 if(parameter_count < 8) {
2029 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2030 return;
2031 }
2032
2033 if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
2034 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2035 return;
2036 }
2037
2038 if (!CAN_WRITE(fsp->conn)) {
2039 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2040 return;
2041 }
2042
2043 if(!lp_nt_acl_support(SNUM(conn))) {
2044 goto done;
2045 }
2046
2047 security_info_sent = IVAL(params,4);
2048
2049 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
2050 fsp_str_dbg(fsp), (unsigned int)security_info_sent));
2051
2052 if (data_count == 0) {
2053 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2054 return;
2055 }
2056
2057 status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
2058
2059 if (!NT_STATUS_IS_OK(status)) {
2060 reply_nterror(req, status);
2061 return;
2062 }
2063
2064 done:
2065 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2066 return;
2067 }
2068
2069 /****************************************************************************
2070 Reply to NT IOCTL
2071 ****************************************************************************/
2072
2073 static void call_nt_transact_ioctl(connection_struct *conn,
2074 struct smb_request *req,
2075 uint16 **ppsetup, uint32 setup_count,
2076 char **ppparams, uint32 parameter_count,
2077 char **ppdata, uint32 data_count,
2078 uint32 max_data_count)
2079 {
2080 uint32 function;
2081 uint16 fidnum;
2082 files_struct *fsp;
2083 uint8 isFSctl;
2084 uint8 compfilter;
2085 char *pdata = *ppdata;
2086
2087 if (setup_count != 8) {
2088 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
2089 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2090 return;
2091 }
2092
2093 function = IVAL(*ppsetup, 0);
2094 fidnum = SVAL(*ppsetup, 4);
2095 isFSctl = CVAL(*ppsetup, 6);
2096 compfilter = CVAL(*ppsetup, 7);
2097
2098 DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
2099 function, fidnum, isFSctl, compfilter));
2100
2101 fsp=file_fsp(req, fidnum);
2102 /* this check is done in each implemented function case for now
2103 because I don't want to break anything... --metze
2104 FSP_BELONGS_CONN(fsp,conn);*/
2105
2106 SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
2107
2108 switch (function) {
2109 case FSCTL_SET_SPARSE:
2110 /* pretend this succeeded - tho strictly we should
2111 mark the file sparse (if the local fs supports it)
2112 so we can know if we need to pre-allocate or not */
2113
2114 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum));
2115 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2116 return;
2117
2118 case FSCTL_CREATE_OR_GET_OBJECT_ID:
2119 {
2120 unsigned char objid[16];
2121
2122 /* This should return the object-id on this file.
2123 * I think I'll make this be the inode+dev. JRA.
2124 */
2125
2126 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
2127
2128 if (!check_fsp_open(conn, req, fsp)) {
2129 return;
2130 }
2131
2132 data_count = 64;
2133 pdata = nttrans_realloc(ppdata, data_count);
2134 if (pdata == NULL) {
2135 reply_nterror(req, NT_STATUS_NO_MEMORY);
2136 return;
2137 }
2138
2139 /* For backwards compatibility only store the dev/inode. */
2140 push_file_id_16(pdata, &fsp->file_id);
2141 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
2142 push_file_id_16(pdata+32, &fsp->file_id);
2143 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2144 pdata, data_count);
2145 return;
2146 }
2147
2148 case FSCTL_GET_REPARSE_POINT:
2149 /* pretend this fail - my winXP does it like this
2150 * --metze
2151 */
2152
2153 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
2154 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
2155 return;
2156
2157 case FSCTL_SET_REPARSE_POINT:
2158 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
2159 * --metze
2160 */
2161
2162 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
2163 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
2164 return;
2165
2166 case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
2167 {
2168 /*
2169 * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
2170 * and return their volume names. If max_data_count is 16, then it is just
2171 * asking for the number of volumes and length of the combined names.
2172 *
2173 * pdata is the data allocated by our caller, but that uses
2174 * total_data_count (which is 0 in our case) rather than max_data_count.
2175 * Allocate the correct amount and return the pointer to let
2176 * it be deallocated when we return.
2177 */
2178 SHADOW_COPY_DATA *shadow_data = NULL;
2179 TALLOC_CTX *shadow_mem_ctx = NULL;
2180 bool labels = False;
2181 uint32 labels_data_count = 0;
2182 uint32 i;
2183 char *cur_pdata;
2184
2185 if (!check_fsp_open(conn, req, fsp)) {
2186 return;
2187 }
2188
2189 if (max_data_count < 16) {
2190 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
2191 max_data_count));
2192 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2193 return;
2194 }
2195
2196 if (max_data_count > 16) {
2197 labels = True;
2198 }
2199
2200 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
2201 if (shadow_mem_ctx == NULL) {
2202 DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
2203 reply_nterror(req, NT_STATUS_NO_MEMORY);
2204 return;
2205 }
2206
2207 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
2208 if (shadow_data == NULL) {
2209 DEBUG(0,("TALLOC_ZERO() failed!\n"));
2210 talloc_destroy(shadow_mem_ctx);
2211 reply_nterror(req, NT_STATUS_NO_MEMORY);
2212 return;
2213 }
2214
2215 shadow_data->mem_ctx = shadow_mem_ctx;
2216
2217 /*
2218 * Call the VFS routine to actually do the work.
2219 */
2220 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
2221 talloc_destroy(shadow_data->mem_ctx);
2222 if (errno == ENOSYS) {
2223 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
2224 conn->connectpath));
2225 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2226 return;
2227 } else {
2228 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
2229 conn->connectpath));
2230 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
2231 return;
2232 }
2233 }
2234
2235 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
2236
2237 if (!labels) {
2238 data_count = 16;
2239 } else {
2240 data_count = 12+labels_data_count+4;
2241 }
2242
2243 if (max_data_count<data_count) {
2244 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
2245 max_data_count,data_count));
2246 talloc_destroy(shadow_data->mem_ctx);
2247 reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
2248 return;
2249 }
2250
2251 pdata = nttrans_realloc(ppdata, data_count);
2252 if (pdata == NULL) {
2253 talloc_destroy(shadow_data->mem_ctx);
2254 reply_nterror(req, NT_STATUS_NO_MEMORY);
2255 return;
2256 }
2257
2258 cur_pdata = pdata;
2259
2260 /* num_volumes 4 bytes */
2261 SIVAL(pdata,0,shadow_data->num_volumes);
2262
2263 if (labels) {
2264 /* num_labels 4 bytes */
2265 SIVAL(pdata,4,shadow_data->num_volumes);
2266 }
2267
2268 /* needed_data_count 4 bytes */
2269 SIVAL(pdata, 8, labels_data_count+4);
2270
2271 cur_pdata+=12;
2272
2273 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
2274 shadow_data->num_volumes, fsp_str_dbg(fsp)));
2275 if (labels && shadow_data->labels) {
2276 for (i=0;i<shadow_data->num_volumes;i++) {
2277 srvstr_push(pdata, req->flags2,
2278 cur_pdata, shadow_data->labels[i],
2279 2*sizeof(SHADOW_COPY_LABEL),
2280 STR_UNICODE|STR_TERMINATE);
2281 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
2282 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
2283 }
2284 }
2285
2286 talloc_destroy(shadow_data->mem_ctx);
2287
2288 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2289 pdata, data_count);
2290
2291 return;
2292 }
2293
2294 case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
2295 {
2296 /* pretend this succeeded -
2297 *
2298 * we have to send back a list with all files owned by this SID
2299 *
2300 * but I have to check that --metze
2301 */
2302 struct dom_sid sid;
2303 uid_t uid;
2304 size_t sid_len;
2305
2306 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
2307
2308 if (!check_fsp_open(conn, req, fsp)) {
2309 return;
2310 }
2311
2312 if (data_count < 8) {
2313 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2314 return;
2315 }
2316
2317 sid_len = MIN(data_count-4,SID_MAX_SIZE);
2318
2319 /* unknown 4 bytes: this is not the length of the sid :-( */
2320 /*unknown = IVAL(pdata,0);*/
2321
2322 if (!sid_parse(pdata+4,sid_len,&sid)) {
2323 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2324 return;
2325 }
2326 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
2327
2328 if (!sid_to_uid(&sid, &uid)) {
2329 DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
2330 sid_string_dbg(&sid),
2331 (unsigned long)sid_len));
2332 uid = (-1);
2333 }
2334
2335 /* we can take a look at the find source :-)
2336 *
2337 * find ./ -uid $uid -name '*' is what we need here
2338 *
2339 *
2340 * and send 4bytes len and then NULL terminated unicode strings
2341 * for each file
2342 *
2343 * but I don't know how to deal with the paged results
2344 * (maybe we can hang the result anywhere in the fsp struct)
2345 *
2346 * we don't send all files at once
2347 * and at the next we should *not* start from the beginning,
2348 * so we have to cache the result
2349 *
2350 * --metze
2351 */
2352
2353 /* this works for now... */
2354 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2355 return;
2356 }
2357 case FSCTL_QUERY_ALLOCATED_RANGES:
2358 {
2359 /* FIXME: This is just a dummy reply, telling that all of the
2360 * file is allocated. MKS cp needs that.
2361 * Adding the real allocated ranges via FIEMAP on Linux
2362 * and SEEK_DATA/SEEK_HOLE on Solaris is needed to make
2363 * this FSCTL correct for sparse files.
2364 */
2365 NTSTATUS status;
2366 uint64_t offset, length;
2367
2368 if (!check_fsp_open(conn, req, fsp)) {
2369 return;
2370 }
2371
2372 if (data_count != 16) {
2373 DEBUG(0,("FSCTL_QUERY_ALLOCATED_RANGES: data_count(%u) != 16 is invalid!\n",
2374 data_count));
2375 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2376 return;
2377 }
2378
2379 if (max_data_count < 16) {
2380 DEBUG(0,("FSCTL_QUERY_ALLOCATED_RANGES: max_data_count(%u) < 16 is invalid!\n",
2381 max_data_count));
2382 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2383 return;
2384 }
2385
2386 offset = BVAL(pdata,0);
2387 length = BVAL(pdata,8);
2388
2389 if (offset + length < offset) {
2390 /* No 64-bit integer wrap. */
2391 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2392 return;
2393 }
2394
2395 status = vfs_stat_fsp(fsp);
2396 if (!NT_STATUS_IS_OK(status)) {
2397 reply_nterror(req, status);
2398 return;
2399 }
2400
2401 if (offset > fsp->fsp_name->st.st_ex_size ||
2402 fsp->fsp_name->st.st_ex_size == 0 ||
2403 length == 0) {
2404 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2405 } else {
2406 uint64_t end = offset + length;
2407 end = MIN(end, fsp->fsp_name->st.st_ex_size);
2408 SBVAL(pdata,0,0);
2409 SBVAL(pdata,8,end);
2410 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2411 pdata, 16);
2412 }
2413 return;
2414 }
2415 default:
2416 /* Only print this once... */
2417 if (!logged_ioctl_message) {
2418 logged_ioctl_message = true;
2419 DEBUG(2,("call_nt_transact_ioctl(0x%x): "
2420 "Currently not implemented.\n",
2421 function));
2422 }
2423 }
2424
2425 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2426 }
2427
2428
2429 #ifdef HAVE_SYS_QUOTAS
2430 /****************************************************************************
2431 Reply to get user quota
2432 ****************************************************************************/
2433
2434 static void call_nt_transact_get_user_quota(connection_struct *conn,
2435 struct smb_request *req,
2436 uint16 **ppsetup,
2437 uint32 setup_count,
2438 char **ppparams,
2439 uint32 parameter_count,
2440 char **ppdata,
2441 uint32 data_count,
2442 uint32 max_data_count)
2443 {
2444 NTSTATUS nt_status = NT_STATUS_OK;
2445 char *params = *ppparams;
2446 char *pdata = *ppdata;
2447 char *entry;
2448 int data_len=0,param_len=0;
2449 int qt_len=0;
2450 int entry_len = 0;
2451 files_struct *fsp = NULL;
2452 uint16 level = 0;
2453 size_t sid_len;
2454 struct dom_sid sid;
2455 bool start_enum = True;
2456 SMB_NTQUOTA_STRUCT qt;
2457 SMB_NTQUOTA_LIST *tmp_list;
2458 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2459
2460 ZERO_STRUCT(qt);
2461
2462 /* access check */
2463 if (conn->server_info->utok.uid != 0) {
2464 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2465 "[%s]\n", lp_servicename(SNUM(conn)),
2466 conn->server_info->unix_name));
2467 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2468 return;
2469 }
2470
2471 /*
2472 * Ensure minimum number of parameters sent.
2473 */
2474
2475 if (parameter_count < 4) {
2476 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2477 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2478 return;
2479 }
2480
2481 /* maybe we can check the quota_fnum */
2482 fsp = file_fsp(req, SVAL(params,0));
2483 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2484 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2485 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2486 return;
2487 }
2488
2489 /* the NULL pointer checking for fsp->fake_file_handle->pd
2490 * is done by CHECK_NTQUOTA_HANDLE_OK()
2491 */
2492 qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2493
2494 level = SVAL(params,2);
2495
2496 /* unknown 12 bytes leading in params */
2497
2498 switch (level) {
2499 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2500 /* seems that we should continue with the enum here --metze */
2501
2502 if (qt_handle->quota_list!=NULL &&
2503 qt_handle->tmp_list==NULL) {
2504
2505 /* free the list */
2506 free_ntquota_list(&(qt_handle->quota_list));
2507
2508 /* Realloc the size of parameters and data we will return */
2509 param_len = 4;
2510 params = nttrans_realloc(ppparams, param_len);
2511 if(params == NULL) {
2512 reply_nterror(req, NT_STATUS_NO_MEMORY);
2513 return;
2514 }
2515
2516 data_len = 0;
2517 SIVAL(params,0,data_len);
2518
2519 break;
2520 }
2521
2522 start_enum = False;
2523
2524 case TRANSACT_GET_USER_QUOTA_LIST_START:
2525
2526 if (qt_handle->quota_list==NULL &&
2527 qt_handle->tmp_list==NULL) {
2528 start_enum = True;
2529 }
2530
2531 if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2532 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2533 return;
2534 }
2535
2536 /* Realloc the size of parameters and data we will return */
2537 param_len = 4;
2538 params = nttrans_realloc(ppparams, param_len);
2539 if(params == NULL) {
2540 reply_nterror(req, NT_STATUS_NO_MEMORY);
2541 return;
2542 }
2543
2544 /* we should not trust the value in max_data_count*/
2545 max_data_count = MIN(max_data_count,2048);
2546
2547 pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2548 if(pdata == NULL) {
2549 reply_nterror(req, NT_STATUS_NO_MEMORY);
2550 return;
2551 }
2552
2553 entry = pdata;
2554
2555 /* set params Size of returned Quota Data 4 bytes*/
2556 /* but set it later when we know it */
2557
2558 /* for each entry push the data */
2559
2560 if (start_enum) {
2561 qt_handle->tmp_list = qt_handle->quota_list;
2562 }
2563
2564 tmp_list = qt_handle->tmp_list;
2565
2566 for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2567 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2568
2569 sid_len = ndr_size_dom_sid(
2570 &tmp_list->quotas->sid, 0);
2571 entry_len = 40 + sid_len;
2572
2573 /* nextoffset entry 4 bytes */
2574 SIVAL(entry,0,entry_len);
2575
2576 /* then the len of the SID 4 bytes */
2577 SIVAL(entry,4,sid_len);
2578
2579 /* unknown data 8 bytes uint64_t */
2580 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2581
2582 /* the used disk space 8 bytes uint64_t */
2583 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2584
2585 /* the soft quotas 8 bytes uint64_t */
2586 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2587
2588 /* the hard quotas 8 bytes uint64_t */
2589 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2590
2591 /* and now the SID */
2592 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2593 }
2594
2595 qt_handle->tmp_list = tmp_list;
2596
2597 /* overwrite the offset of the last entry */
2598 SIVAL(entry-entry_len,0,0);
2599
2600 data_len = 4+qt_len;
2601 /* overwrite the params quota_data_len */
2602 SIVAL(params,0,data_len);
2603
2604 break;
2605
2606 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2607
2608 /* unknown 4 bytes IVAL(pdata,0) */
2609
2610 if (data_count < 8) {
2611 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2612 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2613 return;
2614 }
2615
2616 sid_len = IVAL(pdata,4);
2617 /* Ensure this is less than 1mb. */
2618 if (sid_len > (1024*1024)) {
2619 reply_nterror(req, NT_STATUS_NO_MEMORY);
2620 return;
2621 }
2622
2623 if (data_count < 8+sid_len) {
2624 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2625 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2626 return;
2627 }
2628
2629 data_len = 4+40+sid_len;
2630
2631 if (max_data_count < data_len) {
2632 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2633 max_data_count, data_len));
2634 param_len = 4;
2635 SIVAL(params,0,data_len);
2636 data_len = 0;
2637 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2638 break;
2639 }
2640
2641 if (!sid_parse(pdata+8,sid_len,&sid)) {
2642 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2643 return;
2644 }
2645
2646 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2647 ZERO_STRUCT(qt);
2648 /*
2649 * we have to return zero's in all fields
2650 * instead of returning an error here
2651 * --metze
2652 */
2653 }
2654
2655 /* Realloc the size of parameters and data we will return */
2656 param_len = 4;
2657 params = nttrans_realloc(ppparams, param_len);
2658 if(params == NULL) {
2659 reply_nterror(req, NT_STATUS_NO_MEMORY);
2660 return;
2661 }
2662
2663 pdata = nttrans_realloc(ppdata, data_len);
2664 if(pdata == NULL) {
2665 reply_nterror(req, NT_STATUS_NO_MEMORY);
2666 return;
2667 }
2668
2669 entry = pdata;
2670
2671 /* set params Size of returned Quota Data 4 bytes*/
2672 SIVAL(params,0,data_len);
2673
2674 /* nextoffset entry 4 bytes */
2675 SIVAL(entry,0,0);
2676
2677 /* then the len of the SID 4 bytes */
2678 SIVAL(entry,4,sid_len);
2679
2680 /* unknown data 8 bytes uint64_t */
2681 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2682
2683 /* the used disk space 8 bytes uint64_t */
2684 SBIG_UINT(entry,16,qt.usedspace);
2685
2686 /* the soft quotas 8 bytes uint64_t */
2687 SBIG_UINT(entry,24,qt.softlim);
2688
2689 /* the hard quotas 8 bytes uint64_t */
2690 SBIG_UINT(entry,32,qt.hardlim);
2691
2692 /* and now the SID */
2693 sid_linearize(entry+40, sid_len, &sid);
2694
2695 break;
2696
2697 default:
2698 DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2699 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2700 return;
2701 break;
2702 }
2703
2704 send_nt_replies(conn, req, nt_status, params, param_len,
2705 pdata, data_len);
2706 }
2707
2708 /****************************************************************************
2709 Reply to set user quota
2710 ****************************************************************************/
2711
2712 static void call_nt_transact_set_user_quota(connection_struct *conn,
2713 struct smb_request *req,
2714 uint16 **ppsetup,
2715 uint32 setup_count,
2716 char **ppparams,
2717 uint32 parameter_count,
2718 char **ppdata,
2719 uint32 data_count,
2720 uint32 max_data_count)
2721 {
2722 char *params = *ppparams;
2723 char *pdata = *ppdata;
2724 int data_len=0,param_len=0;
2725 SMB_NTQUOTA_STRUCT qt;
2726 size_t sid_len;
2727 struct dom_sid sid;
2728 files_struct *fsp = NULL;
2729
2730 ZERO_STRUCT(qt);
2731
2732 /* access check */
2733 if (conn->server_info->utok.uid != 0) {
2734 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2735 "[%s]\n", lp_servicename(SNUM(conn)),
2736 conn->server_info->unix_name));
2737 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2738 return;
2739 }
2740
2741 /*
2742 * Ensure minimum number of parameters sent.
2743 */
2744
2745 if (parameter_count < 2) {
2746 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2747 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2748 return;
2749 }
2750
2751 /* maybe we can check the quota_fnum */
2752 fsp = file_fsp(req, SVAL(params,0));
2753 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2754 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2755 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2756 return;
2757 }
2758
2759 if (data_count < 40) {
2760 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2761 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2762 return;
2763 }
2764
2765 /* offset to next quota record.
2766 * 4 bytes IVAL(pdata,0)
2767 * unused here...
2768 */
2769
2770 /* sid len */
2771 sid_len = IVAL(pdata,4);
2772
2773 if (data_count < 40+sid_len || (40+sid_len < sid_len)) {
2774 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2775 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2776 return;
2777 }
2778
2779 /* unknown 8 bytes in pdata
2780 * maybe its the change time in NTTIME
2781 */
2782
2783 /* the used space 8 bytes (uint64_t)*/
2784 qt.usedspace = (uint64_t)IVAL(pdata,16);
2785 #ifdef LARGE_SMB_OFF_T
2786 qt.usedspace |= (((uint64_t)IVAL(pdata,20)) << 32);
2787 #else /* LARGE_SMB_OFF_T */
2788 if ((IVAL(pdata,20) != 0)&&
2789 ((qt.usedspace != 0xFFFFFFFF)||
2790 (IVAL(pdata,20)!=0xFFFFFFFF))) {
2791 /* more than 32 bits? */
2792 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2793 return;
2794 }
2795 #endif /* LARGE_SMB_OFF_T */
2796
2797 /* the soft quotas 8 bytes (uint64_t)*/
2798 qt.softlim = (uint64_t)IVAL(pdata,24);
2799 #ifdef LARGE_SMB_OFF_T
2800 qt.softlim |= (((uint64_t)IVAL(pdata,28)) << 32);
2801 #else /* LARGE_SMB_OFF_T */
2802 if ((IVAL(pdata,28) != 0)&&
2803 ((qt.softlim != 0xFFFFFFFF)||
2804 (IVAL(pdata,28)!=0xFFFFFFFF))) {
2805 /* more than 32 bits? */
2806 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2807 return;
2808 }
2809 #endif /* LARGE_SMB_OFF_T */
2810
2811 /* the hard quotas 8 bytes (uint64_t)*/
2812 qt.hardlim = (uint64_t)IVAL(pdata,32);
2813 #ifdef LARGE_SMB_OFF_T
2814 qt.hardlim |= (((uint64_t)IVAL(pdata,36)) << 32);
2815 #else /* LARGE_SMB_OFF_T */
2816 if ((IVAL(pdata,36) != 0)&&
2817 ((qt.hardlim != 0xFFFFFFFF)||
2818 (IVAL(pdata,36)!=0xFFFFFFFF))) {
2819 /* more than 32 bits? */
2820 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2821 return;
2822 }
2823 #endif /* LARGE_SMB_OFF_T */
2824
2825 if (!sid_parse(pdata+40,sid_len,&sid)) {
2826 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2827 return;
2828 }
2829
2830 DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2831
2832 /* 44 unknown bytes left... */
2833
2834 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2835 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2836 return;
2837 }
2838
2839 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2840 pdata, data_len);
2841 }
2842 #endif /* HAVE_SYS_QUOTAS */
2843
2844 static void handle_nttrans(connection_struct *conn,
2845 struct trans_state *state,
2846 struct smb_request *req)
2847 {
2848 if (get_Protocol() >= PROTOCOL_NT1) {
2849 req->flags2 |= 0x40; /* IS_LONG_NAME */
2850 SSVAL(req->inbuf,smb_flg2,req->flags2);
2851 }
2852
2853
2854 SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2855
2856 /* Now we must call the relevant NT_TRANS function */
2857 switch(state->call) {
2858 case NT_TRANSACT_CREATE:
2859 {
2860 START_PROFILE(NT_transact_create);
2861 call_nt_transact_create(
2862 conn, req,
2863 &state->setup, state->setup_count,
2864 &state->param, state->total_param,
2865 &state->data, state->total_data,
2866 state->max_data_return);
2867 END_PROFILE(NT_transact_create);
2868 break;
2869 }
2870
2871 case NT_TRANSACT_IOCTL:
2872 {
2873 START_PROFILE(NT_transact_ioctl);
2874 call_nt_transact_ioctl(
2875 conn, req,
2876 &state->setup, state->setup_count,
2877 &state->param, state->total_param,
2878 &state->data, state->total_data,
2879 state->max_data_return);
2880 END_PROFILE(NT_transact_ioctl);
2881 break;
2882 }
2883
2884 case NT_TRANSACT_SET_SECURITY_DESC:
2885 {
2886 START_PROFILE(NT_transact_set_security_desc);
2887 call_nt_transact_set_security_desc(
2888 conn, req,
2889 &state->setup, state->setup_count,
2890 &state->param, state->total_param,
2891 &state->data, state->total_data,
2892 state->max_data_return);
2893 END_PROFILE(NT_transact_set_security_desc);
2894 break;
2895 }
2896
2897 case NT_TRANSACT_NOTIFY_CHANGE:
2898 {
2899 START_PROFILE(NT_transact_notify_change);
2900 call_nt_transact_notify_change(
2901 conn, req,
2902 &state->setup, state->setup_count,
2903 &state->param, state->total_param,
2904 &state->data, state->total_data,
2905 state->max_data_return,
2906 state->max_param_return);
2907 END_PROFILE(NT_transact_notify_change);
2908 break;
2909 }
2910
2911 case NT_TRANSACT_RENAME:
2912 {
2913 START_PROFILE(NT_transact_rename);
2914 call_nt_transact_rename(
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 END_PROFILE(NT_transact_rename);
2921 break;
2922 }
2923
2924 case NT_TRANSACT_QUERY_SECURITY_DESC:
2925 {
2926 START_PROFILE(NT_transact_query_security_desc);
2927 call_nt_transact_query_security_desc(
2928 conn, req,
2929 &state->setup, state->setup_count,
2930 &state->param, state->total_param,
2931 &state->data, state->total_data,
2932 state->max_data_return);
2933 END_PROFILE(NT_transact_query_security_desc);
2934 break;
2935 }
2936
2937 #ifdef HAVE_SYS_QUOTAS
2938 case NT_TRANSACT_GET_USER_QUOTA:
2939 {
2940 START_PROFILE(NT_transact_get_user_quota);
2941 call_nt_transact_get_user_quota(
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_get_user_quota);
2948 break;
2949 }
2950
2951 case NT_TRANSACT_SET_USER_QUOTA:
2952 {
2953 START_PROFILE(NT_transact_set_user_quota);
2954 call_nt_transact_set_user_quota(
2955 conn, req,
2956 &state->setup, state->setup_count,
2957 &state->param, state->total_param,
2958 &state->data, state->total_data,
2959 state->max_data_return);
2960 END_PROFILE(NT_transact_set_user_quota);
2961 break;
2962 }
2963 #endif /* HAVE_SYS_QUOTAS */
2964
2965 default:
2966 /* Error in request */
2967 DEBUG(0,("handle_nttrans: Unknown request %d in "
2968 "nttrans call\n", state->call));
2969 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2970 return;
2971 }
2972 return;
2973 }
2974
2975 /****************************************************************************
2976 Reply to a SMBNTtrans.
2977 ****************************************************************************/
2978
2979 void reply_nttrans(struct smb_request *req)
2980 {
2981 connection_struct *conn = req->conn;
2982 uint32_t pscnt;
2983 uint32_t psoff;
2984 uint32_t dscnt;
2985 uint32_t dsoff;
2986 uint16 function_code;
2987 NTSTATUS result;
2988 struct trans_state *state;
2989
2990 START_PROFILE(SMBnttrans);
2991
2992 if (req->wct < 19) {
2993 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2994 END_PROFILE(SMBnttrans);
2995 return;
2996 }
2997
2998 pscnt = IVAL(req->vwv+9, 1);
2999 psoff = IVAL(req->vwv+11, 1);
3000 dscnt = IVAL(req->vwv+13, 1);
3001 dsoff = IVAL(req->vwv+15, 1);
3002 function_code = SVAL(req->vwv+18, 0);
3003
3004 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
3005 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
3006 END_PROFILE(SMBnttrans);
3007 return;
3008 }
3009
3010 result = allow_new_trans(conn->pending_trans, req->mid);
3011 if (!NT_STATUS_IS_OK(result)) {
3012 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
3013 reply_nterror(req, result);
3014 END_PROFILE(SMBnttrans);
3015 return;
3016 }
3017
3018 if ((state = TALLOC_P(conn, struct trans_state)) == NULL) {
3019 reply_nterror(req, NT_STATUS_NO_MEMORY);
3020 END_PROFILE(SMBnttrans);
3021 return;
3022 }
3023
3024 state->cmd = SMBnttrans;
3025
3026 state->mid = req->mid;
3027 state->vuid = req->vuid;
3028 state->total_data = IVAL(req->vwv+3, 1);
3029 state->data = NULL;
3030 state->total_param = IVAL(req->vwv+1, 1);
3031 state->param = NULL;
3032 state->max_data_return = IVAL(req->vwv+7, 1);
3033 state->max_param_return = IVAL(req->vwv+5, 1);
3034
3035 /* setup count is in *words* */
3036 state->setup_count = 2*CVAL(req->vwv+17, 1);
3037 state->setup = NULL;
3038 state->call = function_code;
3039
3040 DEBUG(10, ("num_setup=%u, "
3041 "param_total=%u, this_param=%u, max_param=%u, "
3042 "data_total=%u, this_data=%u, max_data=%u, "
3043 "param_offset=%u, data_offset=%u\n",
3044 (unsigned)state->setup_count,
3045 (unsigned)state->total_param, (unsigned)pscnt,
3046 (unsigned)state->max_param_return,
3047 (unsigned)state->total_data, (unsigned)dscnt,
3048 (unsigned)state->max_data_return,
3049 (unsigned)psoff, (unsigned)dsoff));
3050
3051 /*
3052 * All nttrans messages we handle have smb_wct == 19 +
3053 * state->setup_count. Ensure this is so as a sanity check.
3054 */
3055
3056 if(req->wct != 19 + (state->setup_count/2)) {
3057 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
3058 req->wct, 19 + (state->setup_count/2)));
3059 goto bad_param;
3060 }
3061
3062 /* Don't allow more than 128mb for each value. */
3063 if ((state->total_data > (1024*1024*128)) ||
3064 (state->total_param > (1024*1024*128))) {
3065 reply_nterror(req, NT_STATUS_NO_MEMORY);
3066 END_PROFILE(SMBnttrans);
3067 return;
3068 }
3069
3070 if ((dscnt > state->total_data) || (pscnt > state->total_param))
3071 goto bad_param;
3072
3073 if (state->total_data) {
3074
3075 if (trans_oob(state->total_data, 0, dscnt)
3076 || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
3077 goto bad_param;
3078 }
3079
3080 /* Can't use talloc here, the core routines do realloc on the
3081 * params and data. */
3082 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
3083 DEBUG(0,("reply_nttrans: data malloc fail for %u "
3084 "bytes !\n", (unsigned int)state->total_data));
3085 TALLOC_FREE(state);
3086 reply_nterror(req, NT_STATUS_NO_MEMORY);
3087 END_PROFILE(SMBnttrans);
3088 return;
3089 }
3090
3091 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
3092 }
3093
3094 if (state->total_param) {
3095
3096 if (trans_oob(state->total_param, 0, pscnt)
3097 || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
3098 goto bad_param;
3099 }
3100
3101 /* Can't use talloc here, the core routines do realloc on the
3102 * params and data. */
3103 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
3104 DEBUG(0,("reply_nttrans: param malloc fail for %u "
3105 "bytes !\n", (unsigned int)state->total_param));
3106 SAFE_FREE(state->data);
3107 TALLOC_FREE(state);
3108 reply_nterror(req, NT_STATUS_NO_MEMORY);
3109 END_PROFILE(SMBnttrans);
3110 return;
3111 }
3112
3113 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
3114 }
3115
3116 state->received_data = dscnt;
3117 state->received_param = pscnt;
3118
3119 if(state->setup_count > 0) {
3120 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
3121 state->setup_count));
3122
3123 /*
3124 * No overflow possible here, state->setup_count is an
3125 * unsigned int, being filled by a single byte from
3126 * CVAL(req->vwv+13, 0) above. The cast in the comparison
3127 * below is not necessary, it's here to clarify things. The
3128 * validity of req->vwv and req->wct has been checked in
3129 * init_smb_request already.
3130 */
3131 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
3132 goto bad_param;
3133 }
3134
3135 state->setup = (uint16 *)TALLOC(state, state->setup_count);
3136 if (state->setup == NULL) {
3137 DEBUG(0,("reply_nttrans : Out of memory\n"));
3138 SAFE_FREE(state->data);
3139 SAFE_FREE(state->param);
3140 TALLOC_FREE(state);
3141 reply_nterror(req, NT_STATUS_NO_MEMORY);
3142 END_PROFILE(SMBnttrans);
3143 return;
3144 }
3145
3146 memcpy(state->setup, req->vwv+19, state->setup_count);
3147 dump_data(10, (uint8 *)state->setup, state->setup_count);
3148 }
3149
3150 if ((state->received_data == state->total_data) &&
3151 (state->received_param == state->total_param)) {
3152 handle_nttrans(conn, state, req);
3153 SAFE_FREE(state->param);
3154 SAFE_FREE(state->data);
3155 TALLOC_FREE(state);
3156 END_PROFILE(SMBnttrans);
3157 return;
3158 }
3159
3160 DLIST_ADD(conn->pending_trans, state);
3161
3162 /* We need to send an interim response then receive the rest
3163 of the parameter/data bytes */
3164 reply_outbuf(req, 0, 0);
3165 show_msg((char *)req->outbuf);
3166 END_PROFILE(SMBnttrans);
3167 return;
3168
3169 bad_param:
3170
3171 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
3172 SAFE_FREE(state->data);
3173 SAFE_FREE(state->param);
3174 TALLOC_FREE(state);
3175 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3176 END_PROFILE(SMBnttrans);
3177 return;
3178 }
3179
3180 /****************************************************************************
3181 Reply to a SMBnttranss
3182 ****************************************************************************/
3183
3184 void reply_nttranss(struct smb_request *req)
3185 {
3186 connection_struct *conn = req->conn;
3187 uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
3188 struct trans_state *state;
3189
3190 START_PROFILE(SMBnttranss);
3191
3192 show_msg((char *)req->inbuf);
3193
3194 if (req->wct < 18) {
3195 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3196 END_PROFILE(SMBnttranss);
3197 return;
3198 }
3199
3200 for (state = conn->pending_trans; state != NULL;
3201 state = state->next) {
3202 if (state->mid == req->mid) {
3203 break;
3204 }
3205 }
3206
3207 if ((state == NULL) || (state->cmd != SMBnttrans)) {
3208 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3209 END_PROFILE(SMBnttranss);
3210 return;
3211 }
3212
3213 /* Revise state->total_param and state->total_data in case they have
3214 changed downwards */
3215 if (IVAL(req->vwv+1, 1) < state->total_param) {
3216 state->total_param = IVAL(req->vwv+1, 1);
3217 }
3218 if (IVAL(req->vwv+3, 1) < state->total_data) {
3219 state->total_data = IVAL(req->vwv+3, 1);
3220 }
3221
3222 pcnt = IVAL(req->vwv+5, 1);
3223 poff = IVAL(req->vwv+7, 1);
3224 pdisp = IVAL(req->vwv+9, 1);
3225
3226 dcnt = IVAL(req->vwv+11, 1);
3227 doff = IVAL(req->vwv+13, 1);
3228 ddisp = IVAL(req->vwv+15, 1);
3229
3230 state->received_param += pcnt;
3231 state->received_data += dcnt;
3232
3233 if ((state->received_data > state->total_data) ||
3234 (state->received_param > state->total_param))
3235 goto bad_param;
3236
3237 if (pcnt) {
3238 if (trans_oob(state->total_param, pdisp, pcnt)
3239 || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
3240 goto bad_param;
3241 }
3242 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
3243 }
3244
3245 if (dcnt) {
3246 if (trans_oob(state->total_data, ddisp, dcnt)
3247 || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
3248 goto bad_param;
3249 }
3250 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
3251 }
3252
3253 if ((state->received_param < state->total_param) ||
3254 (state->received_data < state->total_data)) {
3255 END_PROFILE(SMBnttranss);
3256 return;
3257 }
3258
3259 handle_nttrans(conn, state, req);
3260
3261 DLIST_REMOVE(conn->pending_trans, state);
3262 SAFE_FREE(state->data);
3263 SAFE_FREE(state->param);
3264 TALLOC_FREE(state);
3265 END_PROFILE(SMBnttranss);
3266 return;
3267
3268 bad_param:
3269
3270 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
3271 DLIST_REMOVE(conn->pending_trans, state);
3272 SAFE_FREE(state->data);
3273 SAFE_FREE(state->param);
3274 TALLOC_FREE(state);
3275 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3276 END_PROFILE(SMBnttranss);
3277 return;
3278 }
stuff from bjacke