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s4:password_hash LDB module - introduce a "userPassword" flag which enables/disables...
[Samba.git] / source3 / smbd / nttrans.c
blob855a49b2d5feeef8f524d42d009846ddbbb221a4
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, /* access_mask */
1393 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1394 FILE_SHARE_DELETE),
1395 FILE_OPEN, /* create_disposition*/
1396 0, /* create_options */
1397 FILE_ATTRIBUTE_NORMAL, /* file_attributes */
1398 NO_OPLOCK, /* oplock_request */
1399 0, /* allocation_size */
1400 0, /* private_flags */
1401 NULL, /* sd */
1402 NULL, /* ea_list */
1403 &fsp1, /* result */
1404 &info); /* pinfo */
1405
1406 if (!NT_STATUS_IS_OK(status)) {
1407 goto out;
1408 }
1409
1410 status = SMB_VFS_CREATE_FILE(
1411 conn, /* conn */
1412 req, /* req */
1413 0, /* root_dir_fid */
1414 smb_fname_dst, /* fname */
1415 FILE_WRITE_DATA, /* access_mask */
1416 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1417 FILE_SHARE_DELETE),
1418 FILE_CREATE, /* create_disposition*/
1419 0, /* create_options */
1420 fattr, /* file_attributes */
1421 NO_OPLOCK, /* oplock_request */
1422 0, /* allocation_size */
1423 0, /* private_flags */
1424 NULL, /* sd */
1425 NULL, /* ea_list */
1426 &fsp2, /* result */
1427 &info); /* pinfo */
1428
1429 if (!NT_STATUS_IS_OK(status)) {
1430 close_file(NULL, fsp1, ERROR_CLOSE);
1431 goto out;
1432 }
1433
1434 if (smb_fname_src->st.st_ex_size) {
1435 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1436 }
1437
1438 /*
1439 * As we are opening fsp1 read-only we only expect
1440 * an error on close on fsp2 if we are out of space.
1441 * Thus we don't look at the error return from the
1442 * close of fsp1.
1443 */
1444 close_file(NULL, fsp1, NORMAL_CLOSE);
1445
1446 /* Ensure the modtime is set correctly on the destination file. */
1447 set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1448
1449 status = close_file(NULL, fsp2, NORMAL_CLOSE);
1450
1451 /* Grrr. We have to do this as open_file_ntcreate adds aARCH when it
1452 creates the file. This isn't the correct thing to do in the copy
1453 case. JRA */
1454 if (!parent_dirname(talloc_tos(), smb_fname_dst->base_name, &parent,
1455 NULL)) {
1456 status = NT_STATUS_NO_MEMORY;
1457 goto out;
1458 }
1459 file_set_dosmode(conn, smb_fname_dst, fattr, parent, false);
1460 TALLOC_FREE(parent);
1461
1462 if (ret < (SMB_OFF_T)smb_fname_src->st.st_ex_size) {
1463 status = NT_STATUS_DISK_FULL;
1464 goto out;
1465 }
1466 out:
1467 if (!NT_STATUS_IS_OK(status)) {
1468 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1469 nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1470 smb_fname_str_dbg(smb_fname_dst)));
1471 }
1472
1473 return status;
1474 }
1475
1476 /****************************************************************************
1477 Reply to a NT rename request.
1478 ****************************************************************************/
1479
1480 void reply_ntrename(struct smb_request *req)
1481 {
1482 connection_struct *conn = req->conn;
1483 struct smb_filename *smb_fname_old = NULL;
1484 struct smb_filename *smb_fname_new = NULL;
1485 char *oldname = NULL;
1486 char *newname = NULL;
1487 const char *p;
1488 NTSTATUS status;
1489 bool src_has_wcard = False;
1490 bool dest_has_wcard = False;
1491 uint32 attrs;
1492 uint32_t ucf_flags_src = 0;
1493 uint32_t ucf_flags_dst = 0;
1494 uint16 rename_type;
1495 TALLOC_CTX *ctx = talloc_tos();
1496
1497 START_PROFILE(SMBntrename);
1498
1499 if (req->wct < 4) {
1500 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1501 goto out;
1502 }
1503
1504 attrs = SVAL(req->vwv+0, 0);
1505 rename_type = SVAL(req->vwv+1, 0);
1506
1507 p = (const char *)req->buf + 1;
1508 p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1509 &status, &src_has_wcard);
1510 if (!NT_STATUS_IS_OK(status)) {
1511 reply_nterror(req, status);
1512 goto out;
1513 }
1514
1515 if (ms_has_wild(oldname)) {
1516 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1517 goto out;
1518 }
1519
1520 p++;
1521 p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1522 &status, &dest_has_wcard);
1523 if (!NT_STATUS_IS_OK(status)) {
1524 reply_nterror(req, status);
1525 goto out;
1526 }
1527
1528 /* The newname must begin with a ':' if the oldname contains a ':'. */
1529 if (strchr_m(oldname, ':') && (newname[0] != ':')) {
1530 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1531 goto out;
1532 }
1533
1534 /*
1535 * If this is a rename operation, allow wildcards and save the
1536 * destination's last component.
1537 */
1538 if (rename_type == RENAME_FLAG_RENAME) {
1539 ucf_flags_src = UCF_COND_ALLOW_WCARD_LCOMP;
1540 ucf_flags_dst = UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1541 }
1542
1543 /* rename_internals() calls unix_convert(), so don't call it here. */
1544 status = filename_convert(ctx, conn,
1545 req->flags2 & FLAGS2_DFS_PATHNAMES,
1546 oldname,
1547 ucf_flags_src,
1548 NULL,
1549 &smb_fname_old);
1550 if (!NT_STATUS_IS_OK(status)) {
1551 if (NT_STATUS_EQUAL(status,
1552 NT_STATUS_PATH_NOT_COVERED)) {
1553 reply_botherror(req,
1554 NT_STATUS_PATH_NOT_COVERED,
1555 ERRSRV, ERRbadpath);
1556 goto out;
1557 }
1558 reply_nterror(req, status);
1559 goto out;
1560 }
1561
1562 status = filename_convert(ctx, conn,
1563 req->flags2 & FLAGS2_DFS_PATHNAMES,
1564 newname,
1565 ucf_flags_dst,
1566 &dest_has_wcard,
1567 &smb_fname_new);
1568 if (!NT_STATUS_IS_OK(status)) {
1569 if (NT_STATUS_EQUAL(status,
1570 NT_STATUS_PATH_NOT_COVERED)) {
1571 reply_botherror(req,
1572 NT_STATUS_PATH_NOT_COVERED,
1573 ERRSRV, ERRbadpath);
1574 goto out;
1575 }
1576 reply_nterror(req, status);
1577 goto out;
1578 }
1579
1580 DEBUG(3,("reply_ntrename: %s -> %s\n",
1581 smb_fname_str_dbg(smb_fname_old),
1582 smb_fname_str_dbg(smb_fname_new)));
1583
1584 switch(rename_type) {
1585 case RENAME_FLAG_RENAME:
1586 status = rename_internals(ctx, conn, req,
1587 smb_fname_old, smb_fname_new,
1588 attrs, False, src_has_wcard,
1589 dest_has_wcard,
1590 DELETE_ACCESS);
1591 break;
1592 case RENAME_FLAG_HARD_LINK:
1593 if (src_has_wcard || dest_has_wcard) {
1594 /* No wildcards. */
1595 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1596 } else {
1597 status = hardlink_internals(ctx, conn,
1598 req,
1599 false,
1600 smb_fname_old,
1601 smb_fname_new);
1602 }
1603 break;
1604 case RENAME_FLAG_COPY:
1605 if (src_has_wcard || dest_has_wcard) {
1606 /* No wildcards. */
1607 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1608 } else {
1609 status = copy_internals(ctx, conn, req,
1610 smb_fname_old,
1611 smb_fname_new,
1612 attrs);
1613 }
1614 break;
1615 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1616 status = NT_STATUS_INVALID_PARAMETER;
1617 break;
1618 default:
1619 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1620 break;
1621 }
1622
1623 if (!NT_STATUS_IS_OK(status)) {
1624 if (open_was_deferred(req->mid)) {
1625 /* We have re-scheduled this call. */
1626 goto out;
1627 }
1628
1629 reply_nterror(req, status);
1630 goto out;
1631 }
1632
1633 reply_outbuf(req, 0, 0);
1634 out:
1635 END_PROFILE(SMBntrename);
1636 return;
1637 }
1638
1639 /****************************************************************************
1640 Reply to a notify change - queue the request and
1641 don't allow a directory to be opened.
1642 ****************************************************************************/
1643
1644 static void smbd_smb1_notify_reply(struct smb_request *req,
1645 NTSTATUS error_code,
1646 uint8_t *buf, size_t len)
1647 {
1648 send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1649 }
1650
1651 static void call_nt_transact_notify_change(connection_struct *conn,
1652 struct smb_request *req,
1653 uint16 **ppsetup,
1654 uint32 setup_count,
1655 char **ppparams,
1656 uint32 parameter_count,
1657 char **ppdata, uint32 data_count,
1658 uint32 max_data_count,
1659 uint32 max_param_count)
1660 {
1661 uint16 *setup = *ppsetup;
1662 files_struct *fsp;
1663 uint32 filter;
1664 NTSTATUS status;
1665 bool recursive;
1666
1667 if(setup_count < 6) {
1668 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1669 return;
1670 }
1671
1672 fsp = file_fsp(req, SVAL(setup,4));
1673 filter = IVAL(setup, 0);
1674 recursive = (SVAL(setup, 6) != 0) ? True : False;
1675
1676 DEBUG(3,("call_nt_transact_notify_change\n"));
1677
1678 if(!fsp) {
1679 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1680 return;
1681 }
1682
1683 {
1684 char *filter_string;
1685
1686 if (!(filter_string = notify_filter_string(NULL, filter))) {
1687 reply_nterror(req,NT_STATUS_NO_MEMORY);
1688 return;
1689 }
1690
1691 DEBUG(3,("call_nt_transact_notify_change: notify change "
1692 "called on %s, filter = %s, recursive = %d\n",
1693 fsp_str_dbg(fsp), filter_string, recursive));
1694
1695 TALLOC_FREE(filter_string);
1696 }
1697
1698 if((!fsp->is_directory) || (conn != fsp->conn)) {
1699 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1700 return;
1701 }
1702
1703 if (fsp->notify == NULL) {
1704
1705 status = change_notify_create(fsp, filter, recursive);
1706
1707 if (!NT_STATUS_IS_OK(status)) {
1708 DEBUG(10, ("change_notify_create returned %s\n",
1709 nt_errstr(status)));
1710 reply_nterror(req, status);
1711 return;
1712 }
1713 }
1714
1715 if (fsp->notify->num_changes != 0) {
1716
1717 /*
1718 * We've got changes pending, respond immediately
1719 */
1720
1721 /*
1722 * TODO: write a torture test to check the filtering behaviour
1723 * here.
1724 */
1725
1726 change_notify_reply(req,
1727 NT_STATUS_OK,
1728 max_param_count,
1729 fsp->notify,
1730 smbd_smb1_notify_reply);
1731
1732 /*
1733 * change_notify_reply() above has independently sent its
1734 * results
1735 */
1736 return;
1737 }
1738
1739 /*
1740 * No changes pending, queue the request
1741 */
1742
1743 status = change_notify_add_request(req,
1744 max_param_count,
1745 filter,
1746 recursive, fsp,
1747 smbd_smb1_notify_reply);
1748 if (!NT_STATUS_IS_OK(status)) {
1749 reply_nterror(req, status);
1750 }
1751 return;
1752 }
1753
1754 /****************************************************************************
1755 Reply to an NT transact rename command.
1756 ****************************************************************************/
1757
1758 static void call_nt_transact_rename(connection_struct *conn,
1759 struct smb_request *req,
1760 uint16 **ppsetup, uint32 setup_count,
1761 char **ppparams, uint32 parameter_count,
1762 char **ppdata, uint32 data_count,
1763 uint32 max_data_count)
1764 {
1765 char *params = *ppparams;
1766 char *new_name = NULL;
1767 files_struct *fsp = NULL;
1768 bool dest_has_wcard = False;
1769 NTSTATUS status;
1770 TALLOC_CTX *ctx = talloc_tos();
1771
1772 if(parameter_count < 5) {
1773 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1774 return;
1775 }
1776
1777 fsp = file_fsp(req, SVAL(params, 0));
1778 if (!check_fsp(conn, req, fsp)) {
1779 return;
1780 }
1781 srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1782 parameter_count - 4,
1783 STR_TERMINATE, &status, &dest_has_wcard);
1784 if (!NT_STATUS_IS_OK(status)) {
1785 reply_nterror(req, status);
1786 return;
1787 }
1788
1789 /*
1790 * W2K3 ignores this request as the RAW-RENAME test
1791 * demonstrates, so we do.
1792 */
1793 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1794
1795 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1796 fsp_str_dbg(fsp), new_name));
1797
1798 return;
1799 }
1800
1801 /******************************************************************************
1802 Fake up a completely empty SD.
1803 *******************************************************************************/
1804
1805 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, struct security_descriptor **ppsd)
1806 {
1807 size_t sd_size;
1808
1809 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1810 if(!*ppsd) {
1811 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1812 return NT_STATUS_NO_MEMORY;
1813 }
1814
1815 return NT_STATUS_OK;
1816 }
1817
1818 /****************************************************************************
1819 Reply to query a security descriptor.
1820 Callable from SMB2 and SMB2.
1821 If it returns NT_STATUS_BUFFER_TOO_SMALL, pdata_size is initialized with
1822 the required size.
1823 ****************************************************************************/
1824
1825 NTSTATUS smbd_do_query_security_desc(connection_struct *conn,
1826 TALLOC_CTX *mem_ctx,
1827 files_struct *fsp,
1828 uint32_t security_info_wanted,
1829 uint32_t max_data_count,
1830 uint8_t **ppmarshalled_sd,
1831 size_t *psd_size)
1832 {
1833 NTSTATUS status;
1834 struct security_descriptor *psd = NULL;
1835
1836 /*
1837 * Get the permissions to return.
1838 */
1839
1840 if ((security_info_wanted & SECINFO_SACL) &&
1841 !(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
1842 return NT_STATUS_ACCESS_DENIED;
1843 }
1844
1845 if ((security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|SECINFO_GROUP)) &&
1846 !(fsp->access_mask & SEC_STD_READ_CONTROL)) {
1847 return NT_STATUS_ACCESS_DENIED;
1848 }
1849
1850 if (!lp_nt_acl_support(SNUM(conn))) {
1851 status = get_null_nt_acl(mem_ctx, &psd);
1852 } else {
1853 status = SMB_VFS_FGET_NT_ACL(
1854 fsp, security_info_wanted, &psd);
1855 }
1856 if (!NT_STATUS_IS_OK(status)) {
1857 return status;
1858 }
1859
1860 if (!(security_info_wanted & SECINFO_OWNER)) {
1861 psd->owner_sid = NULL;
1862 }
1863 if (!(security_info_wanted & SECINFO_GROUP)) {
1864 psd->group_sid = NULL;
1865 }
1866 if (!(security_info_wanted & SECINFO_DACL)) {
1867 psd->dacl = NULL;
1868 }
1869 if (!(security_info_wanted & SECINFO_SACL)) {
1870 psd->sacl = NULL;
1871 }
1872
1873 /* If the SACL/DACL is NULL, but was requested, we mark that it is
1874 * present in the reply to match Windows behavior */
1875 if (psd->sacl == NULL &&
1876 security_info_wanted & SECINFO_SACL)
1877 psd->type |= SEC_DESC_SACL_PRESENT;
1878 if (psd->dacl == NULL &&
1879 security_info_wanted & SECINFO_DACL)
1880 psd->type |= SEC_DESC_DACL_PRESENT;
1881
1882 *psd_size = ndr_size_security_descriptor(psd, 0);
1883
1884 DEBUG(3,("smbd_do_query_security_desc: sd_size = %lu.\n",
1885 (unsigned long)*psd_size));
1886
1887 if (DEBUGLEVEL >= 10) {
1888 DEBUG(10,("smbd_do_query_security_desc for file %s\n",
1889 fsp_str_dbg(fsp)));
1890 NDR_PRINT_DEBUG(security_descriptor, psd);
1891 }
1892
1893 if (max_data_count < *psd_size) {
1894 TALLOC_FREE(psd);
1895 return NT_STATUS_BUFFER_TOO_SMALL;
1896 }
1897
1898 status = marshall_sec_desc(mem_ctx, psd,
1899 ppmarshalled_sd, psd_size);
1900
1901 if (!NT_STATUS_IS_OK(status)) {
1902 TALLOC_FREE(psd);
1903 return status;
1904 }
1905
1906 TALLOC_FREE(psd);
1907 return NT_STATUS_OK;
1908 }
1909
1910 /****************************************************************************
1911 SMB1 reply to query a security descriptor.
1912 ****************************************************************************/
1913
1914 static void call_nt_transact_query_security_desc(connection_struct *conn,
1915 struct smb_request *req,
1916 uint16 **ppsetup,
1917 uint32 setup_count,
1918 char **ppparams,
1919 uint32 parameter_count,
1920 char **ppdata,
1921 uint32 data_count,
1922 uint32 max_data_count)
1923 {
1924 char *params = *ppparams;
1925 char *data = *ppdata;
1926 size_t sd_size = 0;
1927 uint32 security_info_wanted;
1928 files_struct *fsp = NULL;
1929 NTSTATUS status;
1930 uint8_t *marshalled_sd = NULL;
1931
1932 if(parameter_count < 8) {
1933 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1934 return;
1935 }
1936
1937 fsp = file_fsp(req, SVAL(params,0));
1938 if(!fsp) {
1939 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1940 return;
1941 }
1942
1943 security_info_wanted = IVAL(params,4);
1944
1945 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
1946 "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
1947 (unsigned int)security_info_wanted));
1948
1949 params = nttrans_realloc(ppparams, 4);
1950 if(params == NULL) {
1951 reply_nterror(req, NT_STATUS_NO_MEMORY);
1952 return;
1953 }
1954
1955 /*
1956 * Get the permissions to return.
1957 */
1958
1959 status = smbd_do_query_security_desc(conn,
1960 talloc_tos(),
1961 fsp,
1962 security_info_wanted,
1963 max_data_count,
1964 &marshalled_sd,
1965 &sd_size);
1966
1967 if (NT_STATUS_EQUAL(status, NT_STATUS_BUFFER_TOO_SMALL)) {
1968 SIVAL(params,0,(uint32_t)sd_size);
1969 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1970 params, 4, NULL, 0);
1971 return;
1972 }
1973
1974 if (!NT_STATUS_IS_OK(status)) {
1975 reply_nterror(req, status);
1976 return;
1977 }
1978
1979 SMB_ASSERT(sd_size > 0);
1980
1981 SIVAL(params,0,(uint32_t)sd_size);
1982
1983 if (max_data_count < sd_size) {
1984 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1985 params, 4, NULL, 0);
1986 return;
1987 }
1988
1989 /*
1990 * Allocate the data we will return.
1991 */
1992
1993 data = nttrans_realloc(ppdata, sd_size);
1994 if(data == NULL) {
1995 reply_nterror(req, NT_STATUS_NO_MEMORY);
1996 return;
1997 }
1998
1999 memcpy(data, marshalled_sd, sd_size);
2000
2001 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
2002
2003 return;
2004 }
2005
2006 /****************************************************************************
2007 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
2008 ****************************************************************************/
2009
2010 static void call_nt_transact_set_security_desc(connection_struct *conn,
2011 struct smb_request *req,
2012 uint16 **ppsetup,
2013 uint32 setup_count,
2014 char **ppparams,
2015 uint32 parameter_count,
2016 char **ppdata,
2017 uint32 data_count,
2018 uint32 max_data_count)
2019 {
2020 char *params= *ppparams;
2021 char *data = *ppdata;
2022 files_struct *fsp = NULL;
2023 uint32 security_info_sent = 0;
2024 NTSTATUS status;
2025
2026 if(parameter_count < 8) {
2027 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2028 return;
2029 }
2030
2031 if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
2032 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2033 return;
2034 }
2035
2036 if (!CAN_WRITE(fsp->conn)) {
2037 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2038 return;
2039 }
2040
2041 if(!lp_nt_acl_support(SNUM(conn))) {
2042 goto done;
2043 }
2044
2045 security_info_sent = IVAL(params,4);
2046
2047 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
2048 fsp_str_dbg(fsp), (unsigned int)security_info_sent));
2049
2050 if (data_count == 0) {
2051 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2052 return;
2053 }
2054
2055 status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
2056
2057 if (!NT_STATUS_IS_OK(status)) {
2058 reply_nterror(req, status);
2059 return;
2060 }
2061
2062 done:
2063 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2064 return;
2065 }
2066
2067 /****************************************************************************
2068 Reply to NT IOCTL
2069 ****************************************************************************/
2070
2071 static void call_nt_transact_ioctl(connection_struct *conn,
2072 struct smb_request *req,
2073 uint16 **ppsetup, uint32 setup_count,
2074 char **ppparams, uint32 parameter_count,
2075 char **ppdata, uint32 data_count,
2076 uint32 max_data_count)
2077 {
2078 uint32 function;
2079 uint16 fidnum;
2080 files_struct *fsp;
2081 uint8 isFSctl;
2082 uint8 compfilter;
2083 char *pdata = *ppdata;
2084
2085 if (setup_count != 8) {
2086 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
2087 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2088 return;
2089 }
2090
2091 function = IVAL(*ppsetup, 0);
2092 fidnum = SVAL(*ppsetup, 4);
2093 isFSctl = CVAL(*ppsetup, 6);
2094 compfilter = CVAL(*ppsetup, 7);
2095
2096 DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
2097 function, fidnum, isFSctl, compfilter));
2098
2099 fsp=file_fsp(req, fidnum);
2100 /* this check is done in each implemented function case for now
2101 because I don't want to break anything... --metze
2102 FSP_BELONGS_CONN(fsp,conn);*/
2103
2104 SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
2105
2106 switch (function) {
2107 case FSCTL_SET_SPARSE:
2108 /* pretend this succeeded - tho strictly we should
2109 mark the file sparse (if the local fs supports it)
2110 so we can know if we need to pre-allocate or not */
2111
2112 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum));
2113 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2114 return;
2115
2116 case FSCTL_CREATE_OR_GET_OBJECT_ID:
2117 {
2118 unsigned char objid[16];
2119
2120 /* This should return the object-id on this file.
2121 * I think I'll make this be the inode+dev. JRA.
2122 */
2123
2124 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
2125
2126 if (!check_fsp_open(conn, req, fsp)) {
2127 return;
2128 }
2129
2130 data_count = 64;
2131 pdata = nttrans_realloc(ppdata, data_count);
2132 if (pdata == NULL) {
2133 reply_nterror(req, NT_STATUS_NO_MEMORY);
2134 return;
2135 }
2136
2137 /* For backwards compatibility only store the dev/inode. */
2138 push_file_id_16(pdata, &fsp->file_id);
2139 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
2140 push_file_id_16(pdata+32, &fsp->file_id);
2141 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2142 pdata, data_count);
2143 return;
2144 }
2145
2146 case FSCTL_GET_REPARSE_POINT:
2147 /* pretend this fail - my winXP does it like this
2148 * --metze
2149 */
2150
2151 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
2152 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
2153 return;
2154
2155 case FSCTL_SET_REPARSE_POINT:
2156 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
2157 * --metze
2158 */
2159
2160 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
2161 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
2162 return;
2163
2164 case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
2165 {
2166 /*
2167 * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
2168 * and return their volume names. If max_data_count is 16, then it is just
2169 * asking for the number of volumes and length of the combined names.
2170 *
2171 * pdata is the data allocated by our caller, but that uses
2172 * total_data_count (which is 0 in our case) rather than max_data_count.
2173 * Allocate the correct amount and return the pointer to let
2174 * it be deallocated when we return.
2175 */
2176 SHADOW_COPY_DATA *shadow_data = NULL;
2177 TALLOC_CTX *shadow_mem_ctx = NULL;
2178 bool labels = False;
2179 uint32 labels_data_count = 0;
2180 uint32 i;
2181 char *cur_pdata;
2182
2183 if (!check_fsp_open(conn, req, fsp)) {
2184 return;
2185 }
2186
2187 if (max_data_count < 16) {
2188 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
2189 max_data_count));
2190 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2191 return;
2192 }
2193
2194 if (max_data_count > 16) {
2195 labels = True;
2196 }
2197
2198 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
2199 if (shadow_mem_ctx == NULL) {
2200 DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
2201 reply_nterror(req, NT_STATUS_NO_MEMORY);
2202 return;
2203 }
2204
2205 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
2206 if (shadow_data == NULL) {
2207 DEBUG(0,("TALLOC_ZERO() failed!\n"));
2208 talloc_destroy(shadow_mem_ctx);
2209 reply_nterror(req, NT_STATUS_NO_MEMORY);
2210 return;
2211 }
2212
2213 shadow_data->mem_ctx = shadow_mem_ctx;
2214
2215 /*
2216 * Call the VFS routine to actually do the work.
2217 */
2218 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
2219 talloc_destroy(shadow_data->mem_ctx);
2220 if (errno == ENOSYS) {
2221 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
2222 conn->connectpath));
2223 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2224 return;
2225 } else {
2226 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
2227 conn->connectpath));
2228 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
2229 return;
2230 }
2231 }
2232
2233 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
2234
2235 if (!labels) {
2236 data_count = 16;
2237 } else {
2238 data_count = 12+labels_data_count+4;
2239 }
2240
2241 if (max_data_count<data_count) {
2242 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
2243 max_data_count,data_count));
2244 talloc_destroy(shadow_data->mem_ctx);
2245 reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
2246 return;
2247 }
2248
2249 pdata = nttrans_realloc(ppdata, data_count);
2250 if (pdata == NULL) {
2251 talloc_destroy(shadow_data->mem_ctx);
2252 reply_nterror(req, NT_STATUS_NO_MEMORY);
2253 return;
2254 }
2255
2256 cur_pdata = pdata;
2257
2258 /* num_volumes 4 bytes */
2259 SIVAL(pdata,0,shadow_data->num_volumes);
2260
2261 if (labels) {
2262 /* num_labels 4 bytes */
2263 SIVAL(pdata,4,shadow_data->num_volumes);
2264 }
2265
2266 /* needed_data_count 4 bytes */
2267 SIVAL(pdata, 8, labels_data_count+4);
2268
2269 cur_pdata+=12;
2270
2271 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
2272 shadow_data->num_volumes, fsp_str_dbg(fsp)));
2273 if (labels && shadow_data->labels) {
2274 for (i=0;i<shadow_data->num_volumes;i++) {
2275 srvstr_push(pdata, req->flags2,
2276 cur_pdata, shadow_data->labels[i],
2277 2*sizeof(SHADOW_COPY_LABEL),
2278 STR_UNICODE|STR_TERMINATE);
2279 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
2280 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
2281 }
2282 }
2283
2284 talloc_destroy(shadow_data->mem_ctx);
2285
2286 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2287 pdata, data_count);
2288
2289 return;
2290 }
2291
2292 case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
2293 {
2294 /* pretend this succeeded -
2295 *
2296 * we have to send back a list with all files owned by this SID
2297 *
2298 * but I have to check that --metze
2299 */
2300 struct dom_sid sid;
2301 uid_t uid;
2302 size_t sid_len;
2303
2304 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
2305
2306 if (!check_fsp_open(conn, req, fsp)) {
2307 return;
2308 }
2309
2310 if (data_count < 8) {
2311 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2312 return;
2313 }
2314
2315 sid_len = MIN(data_count-4,SID_MAX_SIZE);
2316
2317 /* unknown 4 bytes: this is not the length of the sid :-( */
2318 /*unknown = IVAL(pdata,0);*/
2319
2320 if (!sid_parse(pdata+4,sid_len,&sid)) {
2321 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2322 return;
2323 }
2324 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
2325
2326 if (!sid_to_uid(&sid, &uid)) {
2327 DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
2328 sid_string_dbg(&sid),
2329 (unsigned long)sid_len));
2330 uid = (-1);
2331 }
2332
2333 /* we can take a look at the find source :-)
2334 *
2335 * find ./ -uid $uid -name '*' is what we need here
2336 *
2337 *
2338 * and send 4bytes len and then NULL terminated unicode strings
2339 * for each file
2340 *
2341 * but I don't know how to deal with the paged results
2342 * (maybe we can hang the result anywhere in the fsp struct)
2343 *
2344 * we don't send all files at once
2345 * and at the next we should *not* start from the beginning,
2346 * so we have to cache the result
2347 *
2348 * --metze
2349 */
2350
2351 /* this works for now... */
2352 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2353 return;
2354 }
2355 case FSCTL_QUERY_ALLOCATED_RANGES:
2356 {
2357 /* FIXME: This is just a dummy reply, telling that all of the
2358 * file is allocated. MKS cp needs that.
2359 * Adding the real allocated ranges via FIEMAP on Linux
2360 * and SEEK_DATA/SEEK_HOLE on Solaris is needed to make
2361 * this FSCTL correct for sparse files.
2362 */
2363 NTSTATUS status;
2364 uint64_t offset, length;
2365
2366 if (!check_fsp_open(conn, req, fsp)) {
2367 return;
2368 }
2369
2370 if (data_count != 16) {
2371 DEBUG(0,("FSCTL_QUERY_ALLOCATED_RANGES: data_count(%u) != 16 is invalid!\n",
2372 data_count));
2373 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2374 return;
2375 }
2376
2377 if (max_data_count < 16) {
2378 DEBUG(0,("FSCTL_QUERY_ALLOCATED_RANGES: max_data_count(%u) < 16 is invalid!\n",
2379 max_data_count));
2380 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2381 return;
2382 }
2383
2384 offset = BVAL(pdata,0);
2385 length = BVAL(pdata,8);
2386
2387 if (offset + length < offset) {
2388 /* No 64-bit integer wrap. */
2389 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2390 return;
2391 }
2392
2393 status = vfs_stat_fsp(fsp);
2394 if (!NT_STATUS_IS_OK(status)) {
2395 reply_nterror(req, status);
2396 return;
2397 }
2398
2399 if (offset > fsp->fsp_name->st.st_ex_size ||
2400 fsp->fsp_name->st.st_ex_size == 0 ||
2401 length == 0) {
2402 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2403 } else {
2404 uint64_t end = offset + length;
2405 end = MIN(end, fsp->fsp_name->st.st_ex_size);
2406 SBVAL(pdata,0,0);
2407 SBVAL(pdata,8,end);
2408 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2409 pdata, 16);
2410 }
2411 return;
2412 }
2413 default:
2414 /* Only print this once... */
2415 if (!logged_ioctl_message) {
2416 logged_ioctl_message = true;
2417 DEBUG(2,("call_nt_transact_ioctl(0x%x): "
2418 "Currently not implemented.\n",
2419 function));
2420 }
2421 }
2422
2423 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2424 }
2425
2426
2427 #ifdef HAVE_SYS_QUOTAS
2428 /****************************************************************************
2429 Reply to get user quota
2430 ****************************************************************************/
2431
2432 static void call_nt_transact_get_user_quota(connection_struct *conn,
2433 struct smb_request *req,
2434 uint16 **ppsetup,
2435 uint32 setup_count,
2436 char **ppparams,
2437 uint32 parameter_count,
2438 char **ppdata,
2439 uint32 data_count,
2440 uint32 max_data_count)
2441 {
2442 NTSTATUS nt_status = NT_STATUS_OK;
2443 char *params = *ppparams;
2444 char *pdata = *ppdata;
2445 char *entry;
2446 int data_len=0,param_len=0;
2447 int qt_len=0;
2448 int entry_len = 0;
2449 files_struct *fsp = NULL;
2450 uint16 level = 0;
2451 size_t sid_len;
2452 struct dom_sid sid;
2453 bool start_enum = True;
2454 SMB_NTQUOTA_STRUCT qt;
2455 SMB_NTQUOTA_LIST *tmp_list;
2456 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2457
2458 ZERO_STRUCT(qt);
2459
2460 /* access check */
2461 if (conn->server_info->utok.uid != 0) {
2462 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2463 "[%s]\n", lp_servicename(SNUM(conn)),
2464 conn->server_info->unix_name));
2465 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2466 return;
2467 }
2468
2469 /*
2470 * Ensure minimum number of parameters sent.
2471 */
2472
2473 if (parameter_count < 4) {
2474 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2475 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2476 return;
2477 }
2478
2479 /* maybe we can check the quota_fnum */
2480 fsp = file_fsp(req, SVAL(params,0));
2481 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2482 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2483 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2484 return;
2485 }
2486
2487 /* the NULL pointer checking for fsp->fake_file_handle->pd
2488 * is done by CHECK_NTQUOTA_HANDLE_OK()
2489 */
2490 qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2491
2492 level = SVAL(params,2);
2493
2494 /* unknown 12 bytes leading in params */
2495
2496 switch (level) {
2497 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2498 /* seems that we should continue with the enum here --metze */
2499
2500 if (qt_handle->quota_list!=NULL &&
2501 qt_handle->tmp_list==NULL) {
2502
2503 /* free the list */
2504 free_ntquota_list(&(qt_handle->quota_list));
2505
2506 /* Realloc the size of parameters and data we will return */
2507 param_len = 4;
2508 params = nttrans_realloc(ppparams, param_len);
2509 if(params == NULL) {
2510 reply_nterror(req, NT_STATUS_NO_MEMORY);
2511 return;
2512 }
2513
2514 data_len = 0;
2515 SIVAL(params,0,data_len);
2516
2517 break;
2518 }
2519
2520 start_enum = False;
2521
2522 case TRANSACT_GET_USER_QUOTA_LIST_START:
2523
2524 if (qt_handle->quota_list==NULL &&
2525 qt_handle->tmp_list==NULL) {
2526 start_enum = True;
2527 }
2528
2529 if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2530 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2531 return;
2532 }
2533
2534 /* Realloc the size of parameters and data we will return */
2535 param_len = 4;
2536 params = nttrans_realloc(ppparams, param_len);
2537 if(params == NULL) {
2538 reply_nterror(req, NT_STATUS_NO_MEMORY);
2539 return;
2540 }
2541
2542 /* we should not trust the value in max_data_count*/
2543 max_data_count = MIN(max_data_count,2048);
2544
2545 pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2546 if(pdata == NULL) {
2547 reply_nterror(req, NT_STATUS_NO_MEMORY);
2548 return;
2549 }
2550
2551 entry = pdata;
2552
2553 /* set params Size of returned Quota Data 4 bytes*/
2554 /* but set it later when we know it */
2555
2556 /* for each entry push the data */
2557
2558 if (start_enum) {
2559 qt_handle->tmp_list = qt_handle->quota_list;
2560 }
2561
2562 tmp_list = qt_handle->tmp_list;
2563
2564 for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2565 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2566
2567 sid_len = ndr_size_dom_sid(
2568 &tmp_list->quotas->sid, 0);
2569 entry_len = 40 + sid_len;
2570
2571 /* nextoffset entry 4 bytes */
2572 SIVAL(entry,0,entry_len);
2573
2574 /* then the len of the SID 4 bytes */
2575 SIVAL(entry,4,sid_len);
2576
2577 /* unknown data 8 bytes uint64_t */
2578 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2579
2580 /* the used disk space 8 bytes uint64_t */
2581 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2582
2583 /* the soft quotas 8 bytes uint64_t */
2584 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2585
2586 /* the hard quotas 8 bytes uint64_t */
2587 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2588
2589 /* and now the SID */
2590 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2591 }
2592
2593 qt_handle->tmp_list = tmp_list;
2594
2595 /* overwrite the offset of the last entry */
2596 SIVAL(entry-entry_len,0,0);
2597
2598 data_len = 4+qt_len;
2599 /* overwrite the params quota_data_len */
2600 SIVAL(params,0,data_len);
2601
2602 break;
2603
2604 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2605
2606 /* unknown 4 bytes IVAL(pdata,0) */
2607
2608 if (data_count < 8) {
2609 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2610 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2611 return;
2612 }
2613
2614 sid_len = IVAL(pdata,4);
2615 /* Ensure this is less than 1mb. */
2616 if (sid_len > (1024*1024)) {
2617 reply_nterror(req, NT_STATUS_NO_MEMORY);
2618 return;
2619 }
2620
2621 if (data_count < 8+sid_len) {
2622 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2623 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2624 return;
2625 }
2626
2627 data_len = 4+40+sid_len;
2628
2629 if (max_data_count < data_len) {
2630 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2631 max_data_count, data_len));
2632 param_len = 4;
2633 SIVAL(params,0,data_len);
2634 data_len = 0;
2635 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2636 break;
2637 }
2638
2639 if (!sid_parse(pdata+8,sid_len,&sid)) {
2640 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2641 return;
2642 }
2643
2644 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2645 ZERO_STRUCT(qt);
2646 /*
2647 * we have to return zero's in all fields
2648 * instead of returning an error here
2649 * --metze
2650 */
2651 }
2652
2653 /* Realloc the size of parameters and data we will return */
2654 param_len = 4;
2655 params = nttrans_realloc(ppparams, param_len);
2656 if(params == NULL) {
2657 reply_nterror(req, NT_STATUS_NO_MEMORY);
2658 return;
2659 }
2660
2661 pdata = nttrans_realloc(ppdata, data_len);
2662 if(pdata == NULL) {
2663 reply_nterror(req, NT_STATUS_NO_MEMORY);
2664 return;
2665 }
2666
2667 entry = pdata;
2668
2669 /* set params Size of returned Quota Data 4 bytes*/
2670 SIVAL(params,0,data_len);
2671
2672 /* nextoffset entry 4 bytes */
2673 SIVAL(entry,0,0);
2674
2675 /* then the len of the SID 4 bytes */
2676 SIVAL(entry,4,sid_len);
2677
2678 /* unknown data 8 bytes uint64_t */
2679 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2680
2681 /* the used disk space 8 bytes uint64_t */
2682 SBIG_UINT(entry,16,qt.usedspace);
2683
2684 /* the soft quotas 8 bytes uint64_t */
2685 SBIG_UINT(entry,24,qt.softlim);
2686
2687 /* the hard quotas 8 bytes uint64_t */
2688 SBIG_UINT(entry,32,qt.hardlim);
2689
2690 /* and now the SID */
2691 sid_linearize(entry+40, sid_len, &sid);
2692
2693 break;
2694
2695 default:
2696 DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2697 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2698 return;
2699 break;
2700 }
2701
2702 send_nt_replies(conn, req, nt_status, params, param_len,
2703 pdata, data_len);
2704 }
2705
2706 /****************************************************************************
2707 Reply to set user quota
2708 ****************************************************************************/
2709
2710 static void call_nt_transact_set_user_quota(connection_struct *conn,
2711 struct smb_request *req,
2712 uint16 **ppsetup,
2713 uint32 setup_count,
2714 char **ppparams,
2715 uint32 parameter_count,
2716 char **ppdata,
2717 uint32 data_count,
2718 uint32 max_data_count)
2719 {
2720 char *params = *ppparams;
2721 char *pdata = *ppdata;
2722 int data_len=0,param_len=0;
2723 SMB_NTQUOTA_STRUCT qt;
2724 size_t sid_len;
2725 struct dom_sid sid;
2726 files_struct *fsp = NULL;
2727
2728 ZERO_STRUCT(qt);
2729
2730 /* access check */
2731 if (conn->server_info->utok.uid != 0) {
2732 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2733 "[%s]\n", lp_servicename(SNUM(conn)),
2734 conn->server_info->unix_name));
2735 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2736 return;
2737 }
2738
2739 /*
2740 * Ensure minimum number of parameters sent.
2741 */
2742
2743 if (parameter_count < 2) {
2744 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2745 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2746 return;
2747 }
2748
2749 /* maybe we can check the quota_fnum */
2750 fsp = file_fsp(req, SVAL(params,0));
2751 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2752 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2753 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2754 return;
2755 }
2756
2757 if (data_count < 40) {
2758 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2759 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2760 return;
2761 }
2762
2763 /* offset to next quota record.
2764 * 4 bytes IVAL(pdata,0)
2765 * unused here...
2766 */
2767
2768 /* sid len */
2769 sid_len = IVAL(pdata,4);
2770
2771 if (data_count < 40+sid_len || (40+sid_len < sid_len)) {
2772 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2773 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2774 return;
2775 }
2776
2777 /* unknown 8 bytes in pdata
2778 * maybe its the change time in NTTIME
2779 */
2780
2781 /* the used space 8 bytes (uint64_t)*/
2782 qt.usedspace = (uint64_t)IVAL(pdata,16);
2783 #ifdef LARGE_SMB_OFF_T
2784 qt.usedspace |= (((uint64_t)IVAL(pdata,20)) << 32);
2785 #else /* LARGE_SMB_OFF_T */
2786 if ((IVAL(pdata,20) != 0)&&
2787 ((qt.usedspace != 0xFFFFFFFF)||
2788 (IVAL(pdata,20)!=0xFFFFFFFF))) {
2789 /* more than 32 bits? */
2790 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2791 return;
2792 }
2793 #endif /* LARGE_SMB_OFF_T */
2794
2795 /* the soft quotas 8 bytes (uint64_t)*/
2796 qt.softlim = (uint64_t)IVAL(pdata,24);
2797 #ifdef LARGE_SMB_OFF_T
2798 qt.softlim |= (((uint64_t)IVAL(pdata,28)) << 32);
2799 #else /* LARGE_SMB_OFF_T */
2800 if ((IVAL(pdata,28) != 0)&&
2801 ((qt.softlim != 0xFFFFFFFF)||
2802 (IVAL(pdata,28)!=0xFFFFFFFF))) {
2803 /* more than 32 bits? */
2804 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2805 return;
2806 }
2807 #endif /* LARGE_SMB_OFF_T */
2808
2809 /* the hard quotas 8 bytes (uint64_t)*/
2810 qt.hardlim = (uint64_t)IVAL(pdata,32);
2811 #ifdef LARGE_SMB_OFF_T
2812 qt.hardlim |= (((uint64_t)IVAL(pdata,36)) << 32);
2813 #else /* LARGE_SMB_OFF_T */
2814 if ((IVAL(pdata,36) != 0)&&
2815 ((qt.hardlim != 0xFFFFFFFF)||
2816 (IVAL(pdata,36)!=0xFFFFFFFF))) {
2817 /* more than 32 bits? */
2818 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2819 return;
2820 }
2821 #endif /* LARGE_SMB_OFF_T */
2822
2823 if (!sid_parse(pdata+40,sid_len,&sid)) {
2824 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2825 return;
2826 }
2827
2828 DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2829
2830 /* 44 unknown bytes left... */
2831
2832 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2833 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2834 return;
2835 }
2836
2837 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2838 pdata, data_len);
2839 }
2840 #endif /* HAVE_SYS_QUOTAS */
2841
2842 static void handle_nttrans(connection_struct *conn,
2843 struct trans_state *state,
2844 struct smb_request *req)
2845 {
2846 if (get_Protocol() >= PROTOCOL_NT1) {
2847 req->flags2 |= 0x40; /* IS_LONG_NAME */
2848 SSVAL(req->inbuf,smb_flg2,req->flags2);
2849 }
2850
2851
2852 SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2853
2854 /* Now we must call the relevant NT_TRANS function */
2855 switch(state->call) {
2856 case NT_TRANSACT_CREATE:
2857 {
2858 START_PROFILE(NT_transact_create);
2859 call_nt_transact_create(
2860 conn, req,
2861 &state->setup, state->setup_count,
2862 &state->param, state->total_param,
2863 &state->data, state->total_data,
2864 state->max_data_return);
2865 END_PROFILE(NT_transact_create);
2866 break;
2867 }
2868
2869 case NT_TRANSACT_IOCTL:
2870 {
2871 START_PROFILE(NT_transact_ioctl);
2872 call_nt_transact_ioctl(
2873 conn, req,
2874 &state->setup, state->setup_count,
2875 &state->param, state->total_param,
2876 &state->data, state->total_data,
2877 state->max_data_return);
2878 END_PROFILE(NT_transact_ioctl);
2879 break;
2880 }
2881
2882 case NT_TRANSACT_SET_SECURITY_DESC:
2883 {
2884 START_PROFILE(NT_transact_set_security_desc);
2885 call_nt_transact_set_security_desc(
2886 conn, req,
2887 &state->setup, state->setup_count,
2888 &state->param, state->total_param,
2889 &state->data, state->total_data,
2890 state->max_data_return);
2891 END_PROFILE(NT_transact_set_security_desc);
2892 break;
2893 }
2894
2895 case NT_TRANSACT_NOTIFY_CHANGE:
2896 {
2897 START_PROFILE(NT_transact_notify_change);
2898 call_nt_transact_notify_change(
2899 conn, req,
2900 &state->setup, state->setup_count,
2901 &state->param, state->total_param,
2902 &state->data, state->total_data,
2903 state->max_data_return,
2904 state->max_param_return);
2905 END_PROFILE(NT_transact_notify_change);
2906 break;
2907 }
2908
2909 case NT_TRANSACT_RENAME:
2910 {
2911 START_PROFILE(NT_transact_rename);
2912 call_nt_transact_rename(
2913 conn, req,
2914 &state->setup, state->setup_count,
2915 &state->param, state->total_param,
2916 &state->data, state->total_data,
2917 state->max_data_return);
2918 END_PROFILE(NT_transact_rename);
2919 break;
2920 }
2921
2922 case NT_TRANSACT_QUERY_SECURITY_DESC:
2923 {
2924 START_PROFILE(NT_transact_query_security_desc);
2925 call_nt_transact_query_security_desc(
2926 conn, req,
2927 &state->setup, state->setup_count,
2928 &state->param, state->total_param,
2929 &state->data, state->total_data,
2930 state->max_data_return);
2931 END_PROFILE(NT_transact_query_security_desc);
2932 break;
2933 }
2934
2935 #ifdef HAVE_SYS_QUOTAS
2936 case NT_TRANSACT_GET_USER_QUOTA:
2937 {
2938 START_PROFILE(NT_transact_get_user_quota);
2939 call_nt_transact_get_user_quota(
2940 conn, req,
2941 &state->setup, state->setup_count,
2942 &state->param, state->total_param,
2943 &state->data, state->total_data,
2944 state->max_data_return);
2945 END_PROFILE(NT_transact_get_user_quota);
2946 break;
2947 }
2948
2949 case NT_TRANSACT_SET_USER_QUOTA:
2950 {
2951 START_PROFILE(NT_transact_set_user_quota);
2952 call_nt_transact_set_user_quota(
2953 conn, req,
2954 &state->setup, state->setup_count,
2955 &state->param, state->total_param,
2956 &state->data, state->total_data,
2957 state->max_data_return);
2958 END_PROFILE(NT_transact_set_user_quota);
2959 break;
2960 }
2961 #endif /* HAVE_SYS_QUOTAS */
2962
2963 default:
2964 /* Error in request */
2965 DEBUG(0,("handle_nttrans: Unknown request %d in "
2966 "nttrans call\n", state->call));
2967 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2968 return;
2969 }
2970 return;
2971 }
2972
2973 /****************************************************************************
2974 Reply to a SMBNTtrans.
2975 ****************************************************************************/
2976
2977 void reply_nttrans(struct smb_request *req)
2978 {
2979 connection_struct *conn = req->conn;
2980 uint32_t pscnt;
2981 uint32_t psoff;
2982 uint32_t dscnt;
2983 uint32_t dsoff;
2984 uint16 function_code;
2985 NTSTATUS result;
2986 struct trans_state *state;
2987
2988 START_PROFILE(SMBnttrans);
2989
2990 if (req->wct < 19) {
2991 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2992 END_PROFILE(SMBnttrans);
2993 return;
2994 }
2995
2996 pscnt = IVAL(req->vwv+9, 1);
2997 psoff = IVAL(req->vwv+11, 1);
2998 dscnt = IVAL(req->vwv+13, 1);
2999 dsoff = IVAL(req->vwv+15, 1);
3000 function_code = SVAL(req->vwv+18, 0);
3001
3002 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
3003 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
3004 END_PROFILE(SMBnttrans);
3005 return;
3006 }
3007
3008 result = allow_new_trans(conn->pending_trans, req->mid);
3009 if (!NT_STATUS_IS_OK(result)) {
3010 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
3011 reply_nterror(req, result);
3012 END_PROFILE(SMBnttrans);
3013 return;
3014 }
3015
3016 if ((state = TALLOC_P(conn, struct trans_state)) == NULL) {
3017 reply_nterror(req, NT_STATUS_NO_MEMORY);
3018 END_PROFILE(SMBnttrans);
3019 return;
3020 }
3021
3022 state->cmd = SMBnttrans;
3023
3024 state->mid = req->mid;
3025 state->vuid = req->vuid;
3026 state->total_data = IVAL(req->vwv+3, 1);
3027 state->data = NULL;
3028 state->total_param = IVAL(req->vwv+1, 1);
3029 state->param = NULL;
3030 state->max_data_return = IVAL(req->vwv+7, 1);
3031 state->max_param_return = IVAL(req->vwv+5, 1);
3032
3033 /* setup count is in *words* */
3034 state->setup_count = 2*CVAL(req->vwv+17, 1);
3035 state->setup = NULL;
3036 state->call = function_code;
3037
3038 DEBUG(10, ("num_setup=%u, "
3039 "param_total=%u, this_param=%u, max_param=%u, "
3040 "data_total=%u, this_data=%u, max_data=%u, "
3041 "param_offset=%u, data_offset=%u\n",
3042 (unsigned)state->setup_count,
3043 (unsigned)state->total_param, (unsigned)pscnt,
3044 (unsigned)state->max_param_return,
3045 (unsigned)state->total_data, (unsigned)dscnt,
3046 (unsigned)state->max_data_return,
3047 (unsigned)psoff, (unsigned)dsoff));
3048
3049 /*
3050 * All nttrans messages we handle have smb_wct == 19 +
3051 * state->setup_count. Ensure this is so as a sanity check.
3052 */
3053
3054 if(req->wct != 19 + (state->setup_count/2)) {
3055 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
3056 req->wct, 19 + (state->setup_count/2)));
3057 goto bad_param;
3058 }
3059
3060 /* Don't allow more than 128mb for each value. */
3061 if ((state->total_data > (1024*1024*128)) ||
3062 (state->total_param > (1024*1024*128))) {
3063 reply_nterror(req, NT_STATUS_NO_MEMORY);
3064 END_PROFILE(SMBnttrans);
3065 return;
3066 }
3067
3068 if ((dscnt > state->total_data) || (pscnt > state->total_param))
3069 goto bad_param;
3070
3071 if (state->total_data) {
3072
3073 if (trans_oob(state->total_data, 0, dscnt)
3074 || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
3075 goto bad_param;
3076 }
3077
3078 /* Can't use talloc here, the core routines do realloc on the
3079 * params and data. */
3080 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
3081 DEBUG(0,("reply_nttrans: data malloc fail for %u "
3082 "bytes !\n", (unsigned int)state->total_data));
3083 TALLOC_FREE(state);
3084 reply_nterror(req, NT_STATUS_NO_MEMORY);
3085 END_PROFILE(SMBnttrans);
3086 return;
3087 }
3088
3089 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
3090 }
3091
3092 if (state->total_param) {
3093
3094 if (trans_oob(state->total_param, 0, pscnt)
3095 || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
3096 goto bad_param;
3097 }
3098
3099 /* Can't use talloc here, the core routines do realloc on the
3100 * params and data. */
3101 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
3102 DEBUG(0,("reply_nttrans: param malloc fail for %u "
3103 "bytes !\n", (unsigned int)state->total_param));
3104 SAFE_FREE(state->data);
3105 TALLOC_FREE(state);
3106 reply_nterror(req, NT_STATUS_NO_MEMORY);
3107 END_PROFILE(SMBnttrans);
3108 return;
3109 }
3110
3111 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
3112 }
3113
3114 state->received_data = dscnt;
3115 state->received_param = pscnt;
3116
3117 if(state->setup_count > 0) {
3118 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
3119 state->setup_count));
3120
3121 /*
3122 * No overflow possible here, state->setup_count is an
3123 * unsigned int, being filled by a single byte from
3124 * CVAL(req->vwv+13, 0) above. The cast in the comparison
3125 * below is not necessary, it's here to clarify things. The
3126 * validity of req->vwv and req->wct has been checked in
3127 * init_smb_request already.
3128 */
3129 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
3130 goto bad_param;
3131 }
3132
3133 state->setup = (uint16 *)TALLOC(state, state->setup_count);
3134 if (state->setup == NULL) {
3135 DEBUG(0,("reply_nttrans : Out of memory\n"));
3136 SAFE_FREE(state->data);
3137 SAFE_FREE(state->param);
3138 TALLOC_FREE(state);
3139 reply_nterror(req, NT_STATUS_NO_MEMORY);
3140 END_PROFILE(SMBnttrans);
3141 return;
3142 }
3143
3144 memcpy(state->setup, req->vwv+19, state->setup_count);
3145 dump_data(10, (uint8 *)state->setup, state->setup_count);
3146 }
3147
3148 if ((state->received_data == state->total_data) &&
3149 (state->received_param == state->total_param)) {
3150 handle_nttrans(conn, state, req);
3151 SAFE_FREE(state->param);
3152 SAFE_FREE(state->data);
3153 TALLOC_FREE(state);
3154 END_PROFILE(SMBnttrans);
3155 return;
3156 }
3157
3158 DLIST_ADD(conn->pending_trans, state);
3159
3160 /* We need to send an interim response then receive the rest
3161 of the parameter/data bytes */
3162 reply_outbuf(req, 0, 0);
3163 show_msg((char *)req->outbuf);
3164 END_PROFILE(SMBnttrans);
3165 return;
3166
3167 bad_param:
3168
3169 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
3170 SAFE_FREE(state->data);
3171 SAFE_FREE(state->param);
3172 TALLOC_FREE(state);
3173 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3174 END_PROFILE(SMBnttrans);
3175 return;
3176 }
3177
3178 /****************************************************************************
3179 Reply to a SMBnttranss
3180 ****************************************************************************/
3181
3182 void reply_nttranss(struct smb_request *req)
3183 {
3184 connection_struct *conn = req->conn;
3185 uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
3186 struct trans_state *state;
3187
3188 START_PROFILE(SMBnttranss);
3189
3190 show_msg((char *)req->inbuf);
3191
3192 if (req->wct < 18) {
3193 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3194 END_PROFILE(SMBnttranss);
3195 return;
3196 }
3197
3198 for (state = conn->pending_trans; state != NULL;
3199 state = state->next) {
3200 if (state->mid == req->mid) {
3201 break;
3202 }
3203 }
3204
3205 if ((state == NULL) || (state->cmd != SMBnttrans)) {
3206 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3207 END_PROFILE(SMBnttranss);
3208 return;
3209 }
3210
3211 /* Revise state->total_param and state->total_data in case they have
3212 changed downwards */
3213 if (IVAL(req->vwv+1, 1) < state->total_param) {
3214 state->total_param = IVAL(req->vwv+1, 1);
3215 }
3216 if (IVAL(req->vwv+3, 1) < state->total_data) {
3217 state->total_data = IVAL(req->vwv+3, 1);
3218 }
3219
3220 pcnt = IVAL(req->vwv+5, 1);
3221 poff = IVAL(req->vwv+7, 1);
3222 pdisp = IVAL(req->vwv+9, 1);
3223
3224 dcnt = IVAL(req->vwv+11, 1);
3225 doff = IVAL(req->vwv+13, 1);
3226 ddisp = IVAL(req->vwv+15, 1);
3227
3228 state->received_param += pcnt;
3229 state->received_data += dcnt;
3230
3231 if ((state->received_data > state->total_data) ||
3232 (state->received_param > state->total_param))
3233 goto bad_param;
3234
3235 if (pcnt) {
3236 if (trans_oob(state->total_param, pdisp, pcnt)
3237 || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
3238 goto bad_param;
3239 }
3240 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
3241 }
3242
3243 if (dcnt) {
3244 if (trans_oob(state->total_data, ddisp, dcnt)
3245 || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
3246 goto bad_param;
3247 }
3248 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
3249 }
3250
3251 if ((state->received_param < state->total_param) ||
3252 (state->received_data < state->total_data)) {
3253 END_PROFILE(SMBnttranss);
3254 return;
3255 }
3256
3257 handle_nttrans(conn, state, req);
3258
3259 DLIST_REMOVE(conn->pending_trans, state);
3260 SAFE_FREE(state->data);
3261 SAFE_FREE(state->param);
3262 TALLOC_FREE(state);
3263 END_PROFILE(SMBnttranss);
3264 return;
3265
3266 bad_param:
3267
3268 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
3269 DLIST_REMOVE(conn->pending_trans, state);
3270 SAFE_FREE(state->data);
3271 SAFE_FREE(state->param);
3272 TALLOC_FREE(state);
3273 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3274 END_PROFILE(SMBnttranss);
3275 return;
3276 }
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