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s3: Remove SHADOW_COPY_DATA typedef (cherry picked from commit 0ec9a90c29b86435f32c1d...
[Samba.git] / source3 / smbd / nttrans.c
blob524d49029bc269a57b46763945bc7a49d33321d2
1 /*
2 Unix SMB/CIFS implementation.
3 SMB NT transaction handling
4 Copyright (C) Jeremy Allison 1994-2007
5 Copyright (C) Stefan (metze) Metzmacher 2003
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
19 */
20
21 #include "includes.h"
22 #include "system/filesys.h"
23 #include "smbd/smbd.h"
24 #include "smbd/globals.h"
25 #include "fake_file.h"
26 #include "../libcli/security/security.h"
27 #include "../librpc/gen_ndr/ndr_security.h"
28 #include "passdb/lookup_sid.h"
29 #include "auth.h"
30 #include "ntioctl.h"
31 #include "smbprofile.h"
32 #include "libsmb/libsmb.h"
33
34 extern const struct generic_mapping file_generic_mapping;
35
36 static char *nttrans_realloc(char **ptr, size_t size)
37 {
38 if (ptr==NULL) {
39 smb_panic("nttrans_realloc() called with NULL ptr");
40 }
41
42 *ptr = (char *)SMB_REALLOC(*ptr, size);
43 if(*ptr == NULL) {
44 return NULL;
45 }
46 memset(*ptr,'\0',size);
47 return *ptr;
48 }
49
50 /****************************************************************************
51 Send the required number of replies back.
52 We assume all fields other than the data fields are
53 set correctly for the type of call.
54 HACK ! Always assumes smb_setup field is zero.
55 ****************************************************************************/
56
57 void send_nt_replies(connection_struct *conn,
58 struct smb_request *req, NTSTATUS nt_error,
59 char *params, int paramsize,
60 char *pdata, int datasize)
61 {
62 int data_to_send = datasize;
63 int params_to_send = paramsize;
64 int useable_space;
65 char *pp = params;
66 char *pd = pdata;
67 int params_sent_thistime, data_sent_thistime, total_sent_thistime;
68 int alignment_offset = 1;
69 int data_alignment_offset = 0;
70 struct smbd_server_connection *sconn = req->sconn;
71 int max_send = sconn->smb1.sessions.max_send;
72
73 /*
74 * If there genuinely are no parameters or data to send just send
75 * the empty packet.
76 */
77
78 if(params_to_send == 0 && data_to_send == 0) {
79 reply_outbuf(req, 18, 0);
80 if (NT_STATUS_V(nt_error)) {
81 error_packet_set((char *)req->outbuf,
82 0, 0, nt_error,
83 __LINE__,__FILE__);
84 }
85 show_msg((char *)req->outbuf);
86 if (!srv_send_smb(sconn,
87 (char *)req->outbuf,
88 true, req->seqnum+1,
89 IS_CONN_ENCRYPTED(conn),
90 &req->pcd)) {
91 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
92 }
93 TALLOC_FREE(req->outbuf);
94 return;
95 }
96
97 /*
98 * When sending params and data ensure that both are nicely aligned.
99 * Only do this alignment when there is also data to send - else
100 * can cause NT redirector problems.
101 */
102
103 if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
104 data_alignment_offset = 4 - (params_to_send % 4);
105 }
106
107 /*
108 * Space is bufsize minus Netbios over TCP header minus SMB header.
109 * The alignment_offset is to align the param bytes on a four byte
110 * boundary (2 bytes for data len, one byte pad).
111 * NT needs this to work correctly.
112 */
113
114 useable_space = max_send - (smb_size
115 + 2 * 18 /* wct */
116 + alignment_offset
117 + data_alignment_offset);
118
119 if (useable_space < 0) {
120 char *msg = talloc_asprintf(
121 talloc_tos(),
122 "send_nt_replies failed sanity useable_space = %d!!!",
123 useable_space);
124 DEBUG(0, ("%s\n", msg));
125 exit_server_cleanly(msg);
126 }
127
128 while (params_to_send || data_to_send) {
129
130 /*
131 * Calculate whether we will totally or partially fill this packet.
132 */
133
134 total_sent_thistime = params_to_send + data_to_send;
135
136 /*
137 * We can never send more than useable_space.
138 */
139
140 total_sent_thistime = MIN(total_sent_thistime, useable_space);
141
142 reply_outbuf(req, 18,
143 total_sent_thistime + alignment_offset
144 + data_alignment_offset);
145
146 /*
147 * We might have had SMBnttranss in req->inbuf, fix that.
148 */
149 SCVAL(req->outbuf, smb_com, SMBnttrans);
150
151 /*
152 * Set total params and data to be sent.
153 */
154
155 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
156 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
157
158 /*
159 * Calculate how many parameters and data we can fit into
160 * this packet. Parameters get precedence.
161 */
162
163 params_sent_thistime = MIN(params_to_send,useable_space);
164 data_sent_thistime = useable_space - params_sent_thistime;
165 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
166
167 SIVAL(req->outbuf, smb_ntr_ParameterCount,
168 params_sent_thistime);
169
170 if(params_sent_thistime == 0) {
171 SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
172 SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
173 } else {
174 /*
175 * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
176 * parameter bytes, however the first 4 bytes of outbuf are
177 * the Netbios over TCP header. Thus use smb_base() to subtract
178 * them from the calculation.
179 */
180
181 SIVAL(req->outbuf,smb_ntr_ParameterOffset,
182 ((smb_buf(req->outbuf)+alignment_offset)
183 - smb_base(req->outbuf)));
184 /*
185 * Absolute displacement of param bytes sent in this packet.
186 */
187
188 SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
189 pp - params);
190 }
191
192 /*
193 * Deal with the data portion.
194 */
195
196 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
197
198 if(data_sent_thistime == 0) {
199 SIVAL(req->outbuf,smb_ntr_DataOffset,0);
200 SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
201 } else {
202 /*
203 * The offset of the data bytes is the offset of the
204 * parameter bytes plus the number of parameters being sent this time.
205 */
206
207 SIVAL(req->outbuf, smb_ntr_DataOffset,
208 ((smb_buf(req->outbuf)+alignment_offset) -
209 smb_base(req->outbuf))
210 + params_sent_thistime + data_alignment_offset);
211 SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
212 }
213
214 /*
215 * Copy the param bytes into the packet.
216 */
217
218 if(params_sent_thistime) {
219 if (alignment_offset != 0) {
220 memset(smb_buf(req->outbuf), 0,
221 alignment_offset);
222 }
223 memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
224 params_sent_thistime);
225 }
226
227 /*
228 * Copy in the data bytes
229 */
230
231 if(data_sent_thistime) {
232 if (data_alignment_offset != 0) {
233 memset((smb_buf(req->outbuf)+alignment_offset+
234 params_sent_thistime), 0,
235 data_alignment_offset);
236 }
237 memcpy(smb_buf(req->outbuf)+alignment_offset
238 +params_sent_thistime+data_alignment_offset,
239 pd,data_sent_thistime);
240 }
241
242 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
243 params_sent_thistime, data_sent_thistime, useable_space));
244 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
245 params_to_send, data_to_send, paramsize, datasize));
246
247 if (NT_STATUS_V(nt_error)) {
248 error_packet_set((char *)req->outbuf,
249 0, 0, nt_error,
250 __LINE__,__FILE__);
251 }
252
253 /* Send the packet */
254 show_msg((char *)req->outbuf);
255 if (!srv_send_smb(sconn,
256 (char *)req->outbuf,
257 true, req->seqnum+1,
258 IS_CONN_ENCRYPTED(conn),
259 &req->pcd)) {
260 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
261 }
262
263 TALLOC_FREE(req->outbuf);
264
265 pp += params_sent_thistime;
266 pd += data_sent_thistime;
267
268 params_to_send -= params_sent_thistime;
269 data_to_send -= data_sent_thistime;
270
271 /*
272 * Sanity check
273 */
274
275 if(params_to_send < 0 || data_to_send < 0) {
276 DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
277 params_to_send, data_to_send));
278 exit_server_cleanly("send_nt_replies: internal error");
279 }
280 }
281 }
282
283 /****************************************************************************
284 Reply to an NT create and X call on a pipe
285 ****************************************************************************/
286
287 static void nt_open_pipe(char *fname, connection_struct *conn,
288 struct smb_request *req, int *ppnum)
289 {
290 files_struct *fsp;
291 NTSTATUS status;
292
293 DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
294
295 /* Strip \\ off the name. */
296 fname++;
297
298 status = open_np_file(req, fname, &fsp);
299 if (!NT_STATUS_IS_OK(status)) {
300 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
301 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
302 ERRDOS, ERRbadpipe);
303 return;
304 }
305 reply_nterror(req, status);
306 return;
307 }
308
309 *ppnum = fsp->fnum;
310 return;
311 }
312
313 /****************************************************************************
314 Reply to an NT create and X call for pipes.
315 ****************************************************************************/
316
317 static void do_ntcreate_pipe_open(connection_struct *conn,
318 struct smb_request *req)
319 {
320 char *fname = NULL;
321 int pnum = -1;
322 char *p = NULL;
323 uint32 flags = IVAL(req->vwv+3, 1);
324 TALLOC_CTX *ctx = talloc_tos();
325
326 srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
327
328 if (!fname) {
329 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
330 ERRDOS, ERRbadpipe);
331 return;
332 }
333 nt_open_pipe(fname, conn, req, &pnum);
334
335 if (req->outbuf) {
336 /* error reply */
337 return;
338 }
339
340 /*
341 * Deal with pipe return.
342 */
343
344 if (flags & EXTENDED_RESPONSE_REQUIRED) {
345 /* This is very strange. We
346 * return 50 words, but only set
347 * the wcnt to 42 ? It's definately
348 * what happens on the wire....
349 */
350 reply_outbuf(req, 50, 0);
351 SCVAL(req->outbuf,smb_wct,42);
352 } else {
353 reply_outbuf(req, 34, 0);
354 }
355
356 p = (char *)req->outbuf + smb_vwv2;
357 p++;
358 SSVAL(p,0,pnum);
359 p += 2;
360 SIVAL(p,0,FILE_WAS_OPENED);
361 p += 4;
362 p += 32;
363 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
364 p += 20;
365 /* File type. */
366 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
367 /* Device state. */
368 SSVAL(p,2, 0x5FF); /* ? */
369 p += 4;
370
371 if (flags & EXTENDED_RESPONSE_REQUIRED) {
372 p += 25;
373 SIVAL(p,0,FILE_GENERIC_ALL);
374 /*
375 * For pipes W2K3 seems to return
376 * 0x12019B next.
377 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
378 */
379 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
380 }
381
382 DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
383
384 chain_reply(req);
385 }
386
387 struct case_semantics_state {
388 connection_struct *conn;
389 bool case_sensitive;
390 bool case_preserve;
391 bool short_case_preserve;
392 };
393
394 /****************************************************************************
395 Restore case semantics.
396 ****************************************************************************/
397
398 static int restore_case_semantics(struct case_semantics_state *state)
399 {
400 state->conn->case_sensitive = state->case_sensitive;
401 state->conn->case_preserve = state->case_preserve;
402 state->conn->short_case_preserve = state->short_case_preserve;
403 return 0;
404 }
405
406 /****************************************************************************
407 Save case semantics.
408 ****************************************************************************/
409
410 static struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx,
411 connection_struct *conn)
412 {
413 struct case_semantics_state *result;
414
415 if (!(result = talloc(mem_ctx, struct case_semantics_state))) {
416 return NULL;
417 }
418
419 result->conn = conn;
420 result->case_sensitive = conn->case_sensitive;
421 result->case_preserve = conn->case_preserve;
422 result->short_case_preserve = conn->short_case_preserve;
423
424 /* Set to POSIX. */
425 conn->case_sensitive = True;
426 conn->case_preserve = True;
427 conn->short_case_preserve = True;
428
429 talloc_set_destructor(result, restore_case_semantics);
430
431 return result;
432 }
433
434 /****************************************************************************
435 Reply to an NT create and X call.
436 ****************************************************************************/
437
438 void reply_ntcreate_and_X(struct smb_request *req)
439 {
440 connection_struct *conn = req->conn;
441 struct smb_filename *smb_fname = NULL;
442 char *fname = NULL;
443 uint32 flags;
444 uint32 access_mask;
445 uint32 file_attributes;
446 uint32 share_access;
447 uint32 create_disposition;
448 uint32 create_options;
449 uint16 root_dir_fid;
450 uint64_t allocation_size;
451 /* Breakout the oplock request bits so we can set the
452 reply bits separately. */
453 uint32 fattr=0;
454 SMB_OFF_T file_len = 0;
455 int info = 0;
456 files_struct *fsp = NULL;
457 char *p = NULL;
458 struct timespec create_timespec;
459 struct timespec c_timespec;
460 struct timespec a_timespec;
461 struct timespec m_timespec;
462 struct timespec write_time_ts;
463 NTSTATUS status;
464 int oplock_request;
465 uint8_t oplock_granted = NO_OPLOCK_RETURN;
466 struct case_semantics_state *case_state = NULL;
467 TALLOC_CTX *ctx = talloc_tos();
468
469 START_PROFILE(SMBntcreateX);
470
471 if (req->wct < 24) {
472 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
473 goto out;
474 }
475
476 flags = IVAL(req->vwv+3, 1);
477 access_mask = IVAL(req->vwv+7, 1);
478 file_attributes = IVAL(req->vwv+13, 1);
479 share_access = IVAL(req->vwv+15, 1);
480 create_disposition = IVAL(req->vwv+17, 1);
481 create_options = IVAL(req->vwv+19, 1);
482 root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
483
484 allocation_size = BVAL(req->vwv+9, 1);
485
486 srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
487 STR_TERMINATE, &status);
488
489 if (!NT_STATUS_IS_OK(status)) {
490 reply_nterror(req, status);
491 goto out;
492 }
493
494 DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
495 "file_attributes = 0x%x, share_access = 0x%x, "
496 "create_disposition = 0x%x create_options = 0x%x "
497 "root_dir_fid = 0x%x, fname = %s\n",
498 (unsigned int)flags,
499 (unsigned int)access_mask,
500 (unsigned int)file_attributes,
501 (unsigned int)share_access,
502 (unsigned int)create_disposition,
503 (unsigned int)create_options,
504 (unsigned int)root_dir_fid,
505 fname));
506
507 /*
508 * we need to remove ignored bits when they come directly from the client
509 * because we reuse some of them for internal stuff
510 */
511 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
512
513 /*
514 * If it's an IPC, use the pipe handler.
515 */
516
517 if (IS_IPC(conn)) {
518 if (lp_nt_pipe_support()) {
519 do_ntcreate_pipe_open(conn, req);
520 goto out;
521 }
522 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
523 goto out;
524 }
525
526 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
527 if (oplock_request) {
528 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
529 ? BATCH_OPLOCK : 0;
530 }
531
532 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
533 case_state = set_posix_case_semantics(ctx, conn);
534 if (!case_state) {
535 reply_nterror(req, NT_STATUS_NO_MEMORY);
536 goto out;
537 }
538 }
539
540 status = filename_convert(ctx,
541 conn,
542 req->flags2 & FLAGS2_DFS_PATHNAMES,
543 fname,
544 0,
545 NULL,
546 &smb_fname);
547
548 TALLOC_FREE(case_state);
549
550 if (!NT_STATUS_IS_OK(status)) {
551 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
552 reply_botherror(req,
553 NT_STATUS_PATH_NOT_COVERED,
554 ERRSRV, ERRbadpath);
555 goto out;
556 }
557 reply_nterror(req, status);
558 goto out;
559 }
560
561 /*
562 * Bug #6898 - clients using Windows opens should
563 * never be able to set this attribute into the
564 * VFS.
565 */
566 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
567
568 status = SMB_VFS_CREATE_FILE(
569 conn, /* conn */
570 req, /* req */
571 root_dir_fid, /* root_dir_fid */
572 smb_fname, /* fname */
573 access_mask, /* access_mask */
574 share_access, /* share_access */
575 create_disposition, /* create_disposition*/
576 create_options, /* create_options */
577 file_attributes, /* file_attributes */
578 oplock_request, /* oplock_request */
579 allocation_size, /* allocation_size */
580 0, /* private_flags */
581 NULL, /* sd */
582 NULL, /* ea_list */
583 &fsp, /* result */
584 &info); /* pinfo */
585
586 if (!NT_STATUS_IS_OK(status)) {
587 if (open_was_deferred(req->mid)) {
588 /* We have re-scheduled this call, no error. */
589 goto out;
590 }
591 reply_openerror(req, status);
592 goto out;
593 }
594
595 /* Ensure we're pointing at the correct stat struct. */
596 TALLOC_FREE(smb_fname);
597 smb_fname = fsp->fsp_name;
598
599 /*
600 * If the caller set the extended oplock request bit
601 * and we granted one (by whatever means) - set the
602 * correct bit for extended oplock reply.
603 */
604
605 if (oplock_request &&
606 (lp_fake_oplocks(SNUM(conn))
607 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
608
609 /*
610 * Exclusive oplock granted
611 */
612
613 if (flags & REQUEST_BATCH_OPLOCK) {
614 oplock_granted = BATCH_OPLOCK_RETURN;
615 } else {
616 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
617 }
618 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
619 oplock_granted = LEVEL_II_OPLOCK_RETURN;
620 } else {
621 oplock_granted = NO_OPLOCK_RETURN;
622 }
623
624 file_len = smb_fname->st.st_ex_size;
625
626 if (flags & EXTENDED_RESPONSE_REQUIRED) {
627 /* This is very strange. We
628 * return 50 words, but only set
629 * the wcnt to 42 ? It's definately
630 * what happens on the wire....
631 */
632 reply_outbuf(req, 50, 0);
633 SCVAL(req->outbuf,smb_wct,42);
634 } else {
635 reply_outbuf(req, 34, 0);
636 }
637
638 p = (char *)req->outbuf + smb_vwv2;
639
640 SCVAL(p, 0, oplock_granted);
641
642 p++;
643 SSVAL(p,0,fsp->fnum);
644 p += 2;
645 if ((create_disposition == FILE_SUPERSEDE)
646 && (info == FILE_WAS_OVERWRITTEN)) {
647 SIVAL(p,0,FILE_WAS_SUPERSEDED);
648 } else {
649 SIVAL(p,0,info);
650 }
651 p += 4;
652
653 fattr = dos_mode(conn, smb_fname);
654 if (fattr == 0) {
655 fattr = FILE_ATTRIBUTE_NORMAL;
656 }
657
658 /* Deal with other possible opens having a modified
659 write time. JRA. */
660 ZERO_STRUCT(write_time_ts);
661 get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
662 if (!null_timespec(write_time_ts)) {
663 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
664 }
665
666 /* Create time. */
667 create_timespec = get_create_timespec(conn, fsp, smb_fname);
668 a_timespec = smb_fname->st.st_ex_atime;
669 m_timespec = smb_fname->st.st_ex_mtime;
670 c_timespec = get_change_timespec(conn, fsp, smb_fname);
671
672 if (lp_dos_filetime_resolution(SNUM(conn))) {
673 dos_filetime_timespec(&create_timespec);
674 dos_filetime_timespec(&a_timespec);
675 dos_filetime_timespec(&m_timespec);
676 dos_filetime_timespec(&c_timespec);
677 }
678
679 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
680 p += 8;
681 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
682 p += 8;
683 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
684 p += 8;
685 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
686 p += 8;
687 SIVAL(p,0,fattr); /* File Attributes. */
688 p += 4;
689 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
690 p += 8;
691 SOFF_T(p,0,file_len);
692 p += 8;
693 if (flags & EXTENDED_RESPONSE_REQUIRED) {
694 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
695 size_t num_names = 0;
696 unsigned int num_streams;
697 struct stream_struct *streams = NULL;
698
699 /* Do we have any EA's ? */
700 status = get_ea_names_from_file(ctx, conn, fsp,
701 smb_fname->base_name, NULL, &num_names);
702 if (NT_STATUS_IS_OK(status) && num_names) {
703 file_status &= ~NO_EAS;
704 }
705 status = SMB_VFS_STREAMINFO(conn, NULL, smb_fname->base_name, ctx,
706 &num_streams, &streams);
707 /* There is always one stream, ::$DATA. */
708 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
709 file_status &= ~NO_SUBSTREAMS;
710 }
711 TALLOC_FREE(streams);
712 SSVAL(p,2,file_status);
713 }
714 p += 4;
715 SCVAL(p,0,fsp->is_directory ? 1 : 0);
716
717 if (flags & EXTENDED_RESPONSE_REQUIRED) {
718 uint32 perms = 0;
719 p += 25;
720 if (fsp->is_directory ||
721 can_write_to_file(conn, smb_fname)) {
722 perms = FILE_GENERIC_ALL;
723 } else {
724 perms = FILE_GENERIC_READ|FILE_EXECUTE;
725 }
726 SIVAL(p,0,perms);
727 }
728
729 DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
730 fsp->fnum, smb_fname_str_dbg(smb_fname)));
731
732 chain_reply(req);
733 out:
734 END_PROFILE(SMBntcreateX);
735 return;
736 }
737
738 /****************************************************************************
739 Reply to a NT_TRANSACT_CREATE call to open a pipe.
740 ****************************************************************************/
741
742 static void do_nt_transact_create_pipe(connection_struct *conn,
743 struct smb_request *req,
744 uint16 **ppsetup, uint32 setup_count,
745 char **ppparams, uint32 parameter_count,
746 char **ppdata, uint32 data_count)
747 {
748 char *fname = NULL;
749 char *params = *ppparams;
750 int pnum = -1;
751 char *p = NULL;
752 NTSTATUS status;
753 size_t param_len;
754 uint32 flags;
755 TALLOC_CTX *ctx = talloc_tos();
756
757 /*
758 * Ensure minimum number of parameters sent.
759 */
760
761 if(parameter_count < 54) {
762 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
763 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
764 return;
765 }
766
767 flags = IVAL(params,0);
768
769 srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
770 parameter_count-53, STR_TERMINATE,
771 &status);
772 if (!NT_STATUS_IS_OK(status)) {
773 reply_nterror(req, status);
774 return;
775 }
776
777 nt_open_pipe(fname, conn, req, &pnum);
778
779 if (req->outbuf) {
780 /* Error return */
781 return;
782 }
783
784 /* Realloc the size of parameters and data we will return */
785 if (flags & EXTENDED_RESPONSE_REQUIRED) {
786 /* Extended response is 32 more byyes. */
787 param_len = 101;
788 } else {
789 param_len = 69;
790 }
791 params = nttrans_realloc(ppparams, param_len);
792 if(params == NULL) {
793 reply_nterror(req, NT_STATUS_NO_MEMORY);
794 return;
795 }
796
797 p = params;
798 SCVAL(p,0,NO_OPLOCK_RETURN);
799
800 p += 2;
801 SSVAL(p,0,pnum);
802 p += 2;
803 SIVAL(p,0,FILE_WAS_OPENED);
804 p += 8;
805
806 p += 32;
807 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
808 p += 20;
809 /* File type. */
810 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
811 /* Device state. */
812 SSVAL(p,2, 0x5FF); /* ? */
813 p += 4;
814
815 if (flags & EXTENDED_RESPONSE_REQUIRED) {
816 p += 25;
817 SIVAL(p,0,FILE_GENERIC_ALL);
818 /*
819 * For pipes W2K3 seems to return
820 * 0x12019B next.
821 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
822 */
823 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
824 }
825
826 DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
827
828 /* Send the required number of replies */
829 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
830
831 return;
832 }
833
834 /****************************************************************************
835 Internal fn to set security descriptors.
836 ****************************************************************************/
837
838 NTSTATUS set_sd(files_struct *fsp, uint8_t *data, uint32_t sd_len,
839 uint32_t security_info_sent)
840 {
841 struct security_descriptor *psd = NULL;
842 NTSTATUS status;
843
844 if (sd_len == 0) {
845 return NT_STATUS_INVALID_PARAMETER;
846 }
847
848 if (!CAN_WRITE(fsp->conn)) {
849 return NT_STATUS_ACCESS_DENIED;
850 }
851
852 if (!lp_nt_acl_support(SNUM(fsp->conn))) {
853 return NT_STATUS_OK;
854 }
855
856 status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
857
858 if (!NT_STATUS_IS_OK(status)) {
859 return status;
860 }
861
862 if (psd->owner_sid == NULL) {
863 security_info_sent &= ~SECINFO_OWNER;
864 }
865 if (psd->group_sid == NULL) {
866 security_info_sent &= ~SECINFO_GROUP;
867 }
868
869 /* Ensure we have at least one thing set. */
870 if ((security_info_sent & (SECINFO_OWNER|SECINFO_GROUP|SECINFO_DACL|SECINFO_SACL)) == 0) {
871 return NT_STATUS_INVALID_PARAMETER;
872 }
873
874 /* Ensure we have the rights to do this. */
875 if (security_info_sent & SECINFO_OWNER) {
876 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
877 return NT_STATUS_ACCESS_DENIED;
878 }
879 }
880
881 if (security_info_sent & SECINFO_GROUP) {
882 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
883 return NT_STATUS_ACCESS_DENIED;
884 }
885 }
886
887 if (security_info_sent & SECINFO_DACL) {
888 if (!(fsp->access_mask & SEC_STD_WRITE_DAC)) {
889 return NT_STATUS_ACCESS_DENIED;
890 }
891 /* Convert all the generic bits. */
892 if (psd->dacl) {
893 security_acl_map_generic(psd->dacl, &file_generic_mapping);
894 }
895 }
896
897 if (security_info_sent & SECINFO_SACL) {
898 if (!(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
899 return NT_STATUS_ACCESS_DENIED;
900 }
901 /* Convert all the generic bits. */
902 if (psd->sacl) {
903 security_acl_map_generic(psd->sacl, &file_generic_mapping);
904 }
905 }
906
907 if (DEBUGLEVEL >= 10) {
908 DEBUG(10,("set_sd for file %s\n", fsp_str_dbg(fsp)));
909 NDR_PRINT_DEBUG(security_descriptor, psd);
910 }
911
912 status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
913
914 TALLOC_FREE(psd);
915
916 return status;
917 }
918
919 /****************************************************************************
920 Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
921 ****************************************************************************/
922
923 struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
924 {
925 struct ea_list *ea_list_head = NULL;
926 size_t offset = 0;
927
928 if (data_size < 4) {
929 return NULL;
930 }
931
932 while (offset + 4 <= data_size) {
933 size_t next_offset = IVAL(pdata,offset);
934 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
935
936 if (!eal) {
937 return NULL;
938 }
939
940 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
941 if (next_offset == 0) {
942 break;
943 }
944 offset += next_offset;
945 }
946
947 return ea_list_head;
948 }
949
950 /****************************************************************************
951 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
952 ****************************************************************************/
953
954 static void call_nt_transact_create(connection_struct *conn,
955 struct smb_request *req,
956 uint16 **ppsetup, uint32 setup_count,
957 char **ppparams, uint32 parameter_count,
958 char **ppdata, uint32 data_count,
959 uint32 max_data_count)
960 {
961 struct smb_filename *smb_fname = NULL;
962 char *fname = NULL;
963 char *params = *ppparams;
964 char *data = *ppdata;
965 /* Breakout the oplock request bits so we can set the reply bits separately. */
966 uint32 fattr=0;
967 SMB_OFF_T file_len = 0;
968 int info = 0;
969 files_struct *fsp = NULL;
970 char *p = NULL;
971 uint32 flags;
972 uint32 access_mask;
973 uint32 file_attributes;
974 uint32 share_access;
975 uint32 create_disposition;
976 uint32 create_options;
977 uint32 sd_len;
978 struct security_descriptor *sd = NULL;
979 uint32 ea_len;
980 uint16 root_dir_fid;
981 struct timespec create_timespec;
982 struct timespec c_timespec;
983 struct timespec a_timespec;
984 struct timespec m_timespec;
985 struct timespec write_time_ts;
986 struct ea_list *ea_list = NULL;
987 NTSTATUS status;
988 size_t param_len;
989 uint64_t allocation_size;
990 int oplock_request;
991 uint8_t oplock_granted;
992 struct case_semantics_state *case_state = NULL;
993 TALLOC_CTX *ctx = talloc_tos();
994
995 DEBUG(5,("call_nt_transact_create\n"));
996
997 /*
998 * If it's an IPC, use the pipe handler.
999 */
1000
1001 if (IS_IPC(conn)) {
1002 if (lp_nt_pipe_support()) {
1003 do_nt_transact_create_pipe(
1004 conn, req,
1005 ppsetup, setup_count,
1006 ppparams, parameter_count,
1007 ppdata, data_count);
1008 goto out;
1009 }
1010 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1011 goto out;
1012 }
1013
1014 /*
1015 * Ensure minimum number of parameters sent.
1016 */
1017
1018 if(parameter_count < 54) {
1019 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1020 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1021 goto out;
1022 }
1023
1024 flags = IVAL(params,0);
1025 access_mask = IVAL(params,8);
1026 file_attributes = IVAL(params,20);
1027 share_access = IVAL(params,24);
1028 create_disposition = IVAL(params,28);
1029 create_options = IVAL(params,32);
1030 sd_len = IVAL(params,36);
1031 ea_len = IVAL(params,40);
1032 root_dir_fid = (uint16)IVAL(params,4);
1033 allocation_size = BVAL(params,12);
1034
1035 /*
1036 * we need to remove ignored bits when they come directly from the client
1037 * because we reuse some of them for internal stuff
1038 */
1039 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
1040
1041 /* Ensure the data_len is correct for the sd and ea values given. */
1042 if ((ea_len + sd_len > data_count)
1043 || (ea_len > data_count) || (sd_len > data_count)
1044 || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
1045 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
1046 "%u, data_count = %u\n", (unsigned int)ea_len,
1047 (unsigned int)sd_len, (unsigned int)data_count));
1048 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1049 goto out;
1050 }
1051
1052 if (sd_len) {
1053 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
1054 sd_len));
1055
1056 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
1057 &sd);
1058 if (!NT_STATUS_IS_OK(status)) {
1059 DEBUG(10, ("call_nt_transact_create: "
1060 "unmarshall_sec_desc failed: %s\n",
1061 nt_errstr(status)));
1062 reply_nterror(req, status);
1063 goto out;
1064 }
1065 }
1066
1067 if (ea_len) {
1068 if (!lp_ea_support(SNUM(conn))) {
1069 DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
1070 "EA's not supported.\n",
1071 (unsigned int)ea_len));
1072 reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
1073 goto out;
1074 }
1075
1076 if (ea_len < 10) {
1077 DEBUG(10,("call_nt_transact_create - ea_len = %u - "
1078 "too small (should be more than 10)\n",
1079 (unsigned int)ea_len ));
1080 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1081 goto out;
1082 }
1083
1084 /* We have already checked that ea_len <= data_count here. */
1085 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
1086 ea_len);
1087 if (ea_list == NULL) {
1088 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1089 goto out;
1090 }
1091 }
1092
1093 srvstr_get_path(ctx, params, req->flags2, &fname,
1094 params+53, parameter_count-53,
1095 STR_TERMINATE, &status);
1096 if (!NT_STATUS_IS_OK(status)) {
1097 reply_nterror(req, status);
1098 goto out;
1099 }
1100
1101 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
1102 case_state = set_posix_case_semantics(ctx, conn);
1103 if (!case_state) {
1104 reply_nterror(req, NT_STATUS_NO_MEMORY);
1105 goto out;
1106 }
1107 }
1108
1109 status = filename_convert(ctx,
1110 conn,
1111 req->flags2 & FLAGS2_DFS_PATHNAMES,
1112 fname,
1113 0,
1114 NULL,
1115 &smb_fname);
1116
1117 TALLOC_FREE(case_state);
1118
1119 if (!NT_STATUS_IS_OK(status)) {
1120 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1121 reply_botherror(req,
1122 NT_STATUS_PATH_NOT_COVERED,
1123 ERRSRV, ERRbadpath);
1124 goto out;
1125 }
1126 reply_nterror(req, status);
1127 goto out;
1128 }
1129
1130 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1131 if (oplock_request) {
1132 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1133 ? BATCH_OPLOCK : 0;
1134 }
1135
1136 /*
1137 * Bug #6898 - clients using Windows opens should
1138 * never be able to set this attribute into the
1139 * VFS.
1140 */
1141 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
1142
1143 status = SMB_VFS_CREATE_FILE(
1144 conn, /* conn */
1145 req, /* req */
1146 root_dir_fid, /* root_dir_fid */
1147 smb_fname, /* fname */
1148 access_mask, /* access_mask */
1149 share_access, /* share_access */
1150 create_disposition, /* create_disposition*/
1151 create_options, /* create_options */
1152 file_attributes, /* file_attributes */
1153 oplock_request, /* oplock_request */
1154 allocation_size, /* allocation_size */
1155 0, /* private_flags */
1156 sd, /* sd */
1157 ea_list, /* ea_list */
1158 &fsp, /* result */
1159 &info); /* pinfo */
1160
1161 if(!NT_STATUS_IS_OK(status)) {
1162 if (open_was_deferred(req->mid)) {
1163 /* We have re-scheduled this call, no error. */
1164 return;
1165 }
1166 reply_openerror(req, status);
1167 goto out;
1168 }
1169
1170 /* Ensure we're pointing at the correct stat struct. */
1171 TALLOC_FREE(smb_fname);
1172 smb_fname = fsp->fsp_name;
1173
1174 /*
1175 * If the caller set the extended oplock request bit
1176 * and we granted one (by whatever means) - set the
1177 * correct bit for extended oplock reply.
1178 */
1179
1180 if (oplock_request &&
1181 (lp_fake_oplocks(SNUM(conn))
1182 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1183
1184 /*
1185 * Exclusive oplock granted
1186 */
1187
1188 if (flags & REQUEST_BATCH_OPLOCK) {
1189 oplock_granted = BATCH_OPLOCK_RETURN;
1190 } else {
1191 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1192 }
1193 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1194 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1195 } else {
1196 oplock_granted = NO_OPLOCK_RETURN;
1197 }
1198
1199 file_len = smb_fname->st.st_ex_size;
1200
1201 /* Realloc the size of parameters and data we will return */
1202 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1203 /* Extended response is 32 more byyes. */
1204 param_len = 101;
1205 } else {
1206 param_len = 69;
1207 }
1208 params = nttrans_realloc(ppparams, param_len);
1209 if(params == NULL) {
1210 reply_nterror(req, NT_STATUS_NO_MEMORY);
1211 goto out;
1212 }
1213
1214 p = params;
1215 SCVAL(p, 0, oplock_granted);
1216
1217 p += 2;
1218 SSVAL(p,0,fsp->fnum);
1219 p += 2;
1220 if ((create_disposition == FILE_SUPERSEDE)
1221 && (info == FILE_WAS_OVERWRITTEN)) {
1222 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1223 } else {
1224 SIVAL(p,0,info);
1225 }
1226 p += 8;
1227
1228 fattr = dos_mode(conn, smb_fname);
1229 if (fattr == 0) {
1230 fattr = FILE_ATTRIBUTE_NORMAL;
1231 }
1232
1233 /* Deal with other possible opens having a modified
1234 write time. JRA. */
1235 ZERO_STRUCT(write_time_ts);
1236 get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
1237 if (!null_timespec(write_time_ts)) {
1238 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
1239 }
1240
1241 /* Create time. */
1242 create_timespec = get_create_timespec(conn, fsp, smb_fname);
1243 a_timespec = smb_fname->st.st_ex_atime;
1244 m_timespec = smb_fname->st.st_ex_mtime;
1245 c_timespec = get_change_timespec(conn, fsp, smb_fname);
1246
1247 if (lp_dos_filetime_resolution(SNUM(conn))) {
1248 dos_filetime_timespec(&create_timespec);
1249 dos_filetime_timespec(&a_timespec);
1250 dos_filetime_timespec(&m_timespec);
1251 dos_filetime_timespec(&c_timespec);
1252 }
1253
1254 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
1255 p += 8;
1256 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
1257 p += 8;
1258 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
1259 p += 8;
1260 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
1261 p += 8;
1262 SIVAL(p,0,fattr); /* File Attributes. */
1263 p += 4;
1264 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1265 p += 8;
1266 SOFF_T(p,0,file_len);
1267 p += 8;
1268 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1269 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
1270 size_t num_names = 0;
1271 unsigned int num_streams;
1272 struct stream_struct *streams = NULL;
1273
1274 /* Do we have any EA's ? */
1275 status = get_ea_names_from_file(ctx, conn, fsp,
1276 smb_fname->base_name, NULL, &num_names);
1277 if (NT_STATUS_IS_OK(status) && num_names) {
1278 file_status &= ~NO_EAS;
1279 }
1280 status = SMB_VFS_STREAMINFO(conn, NULL, smb_fname->base_name, ctx,
1281 &num_streams, &streams);
1282 /* There is always one stream, ::$DATA. */
1283 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
1284 file_status &= ~NO_SUBSTREAMS;
1285 }
1286 TALLOC_FREE(streams);
1287 SSVAL(p,2,file_status);
1288 }
1289 p += 4;
1290 SCVAL(p,0,fsp->is_directory ? 1 : 0);
1291
1292 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1293 uint32 perms = 0;
1294 p += 25;
1295 if (fsp->is_directory ||
1296 can_write_to_file(conn, smb_fname)) {
1297 perms = FILE_GENERIC_ALL;
1298 } else {
1299 perms = FILE_GENERIC_READ|FILE_EXECUTE;
1300 }
1301 SIVAL(p,0,perms);
1302 }
1303
1304 DEBUG(5,("call_nt_transact_create: open name = %s\n",
1305 smb_fname_str_dbg(smb_fname)));
1306
1307 /* Send the required number of replies */
1308 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1309 out:
1310 return;
1311 }
1312
1313 /****************************************************************************
1314 Reply to a NT CANCEL request.
1315 conn POINTER CAN BE NULL HERE !
1316 ****************************************************************************/
1317
1318 void reply_ntcancel(struct smb_request *req)
1319 {
1320 /*
1321 * Go through and cancel any pending change notifies.
1322 */
1323
1324 START_PROFILE(SMBntcancel);
1325 srv_cancel_sign_response(req->sconn);
1326 remove_pending_change_notify_requests_by_mid(req->sconn, req->mid);
1327 remove_pending_lock_requests_by_mid_smb1(req->sconn, req->mid);
1328
1329 DEBUG(3,("reply_ntcancel: cancel called on mid = %llu.\n",
1330 (unsigned long long)req->mid));
1331
1332 END_PROFILE(SMBntcancel);
1333 return;
1334 }
1335
1336 /****************************************************************************
1337 Copy a file.
1338 ****************************************************************************/
1339
1340 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1341 connection_struct *conn,
1342 struct smb_request *req,
1343 struct smb_filename *smb_fname_src,
1344 struct smb_filename *smb_fname_dst,
1345 uint32 attrs)
1346 {
1347 files_struct *fsp1,*fsp2;
1348 uint32 fattr;
1349 int info;
1350 SMB_OFF_T ret=-1;
1351 NTSTATUS status = NT_STATUS_OK;
1352 char *parent;
1353
1354 if (!CAN_WRITE(conn)) {
1355 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1356 goto out;
1357 }
1358
1359 /* Source must already exist. */
1360 if (!VALID_STAT(smb_fname_src->st)) {
1361 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1362 goto out;
1363 }
1364
1365 /* Ensure attributes match. */
1366 fattr = dos_mode(conn, smb_fname_src);
1367 if ((fattr & ~attrs) & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) {
1368 status = NT_STATUS_NO_SUCH_FILE;
1369 goto out;
1370 }
1371
1372 /* Disallow if dst file already exists. */
1373 if (VALID_STAT(smb_fname_dst->st)) {
1374 status = NT_STATUS_OBJECT_NAME_COLLISION;
1375 goto out;
1376 }
1377
1378 /* No links from a directory. */
1379 if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1380 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1381 goto out;
1382 }
1383
1384 DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1385 smb_fname_str_dbg(smb_fname_src),
1386 smb_fname_str_dbg(smb_fname_dst)));
1387
1388 status = SMB_VFS_CREATE_FILE(
1389 conn, /* conn */
1390 req, /* req */
1391 0, /* root_dir_fid */
1392 smb_fname_src, /* fname */
1393 FILE_READ_DATA|FILE_READ_ATTRIBUTES|
1394 FILE_READ_EA, /* access_mask */
1395 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1396 FILE_SHARE_DELETE),
1397 FILE_OPEN, /* create_disposition*/
1398 0, /* create_options */
1399 FILE_ATTRIBUTE_NORMAL, /* file_attributes */
1400 NO_OPLOCK, /* oplock_request */
1401 0, /* allocation_size */
1402 0, /* private_flags */
1403 NULL, /* sd */
1404 NULL, /* ea_list */
1405 &fsp1, /* result */
1406 &info); /* pinfo */
1407
1408 if (!NT_STATUS_IS_OK(status)) {
1409 goto out;
1410 }
1411
1412 status = SMB_VFS_CREATE_FILE(
1413 conn, /* conn */
1414 req, /* req */
1415 0, /* root_dir_fid */
1416 smb_fname_dst, /* fname */
1417 FILE_WRITE_DATA|FILE_WRITE_ATTRIBUTES|
1418 FILE_WRITE_EA, /* access_mask */
1419 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1420 FILE_SHARE_DELETE),
1421 FILE_CREATE, /* create_disposition*/
1422 0, /* create_options */
1423 fattr, /* file_attributes */
1424 NO_OPLOCK, /* oplock_request */
1425 0, /* allocation_size */
1426 0, /* private_flags */
1427 NULL, /* sd */
1428 NULL, /* ea_list */
1429 &fsp2, /* result */
1430 &info); /* pinfo */
1431
1432 if (!NT_STATUS_IS_OK(status)) {
1433 close_file(NULL, fsp1, ERROR_CLOSE);
1434 goto out;
1435 }
1436
1437 if (smb_fname_src->st.st_ex_size) {
1438 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1439 }
1440
1441 /*
1442 * As we are opening fsp1 read-only we only expect
1443 * an error on close on fsp2 if we are out of space.
1444 * Thus we don't look at the error return from the
1445 * close of fsp1.
1446 */
1447 close_file(NULL, fsp1, NORMAL_CLOSE);
1448
1449 /* Ensure the modtime is set correctly on the destination file. */
1450 set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1451
1452 status = close_file(NULL, fsp2, NORMAL_CLOSE);
1453
1454 /* Grrr. We have to do this as open_file_ntcreate adds FILE_ATTRIBUTE_ARCHIVE when it
1455 creates the file. This isn't the correct thing to do in the copy
1456 case. JRA */
1457 if (!parent_dirname(talloc_tos(), smb_fname_dst->base_name, &parent,
1458 NULL)) {
1459 status = NT_STATUS_NO_MEMORY;
1460 goto out;
1461 }
1462 file_set_dosmode(conn, smb_fname_dst, fattr, parent, false);
1463 TALLOC_FREE(parent);
1464
1465 if (ret < (SMB_OFF_T)smb_fname_src->st.st_ex_size) {
1466 status = NT_STATUS_DISK_FULL;
1467 goto out;
1468 }
1469 out:
1470 if (!NT_STATUS_IS_OK(status)) {
1471 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1472 nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1473 smb_fname_str_dbg(smb_fname_dst)));
1474 }
1475
1476 return status;
1477 }
1478
1479 /****************************************************************************
1480 Reply to a NT rename request.
1481 ****************************************************************************/
1482
1483 void reply_ntrename(struct smb_request *req)
1484 {
1485 connection_struct *conn = req->conn;
1486 struct smb_filename *smb_fname_old = NULL;
1487 struct smb_filename *smb_fname_new = NULL;
1488 char *oldname = NULL;
1489 char *newname = NULL;
1490 const char *p;
1491 NTSTATUS status;
1492 bool src_has_wcard = False;
1493 bool dest_has_wcard = False;
1494 uint32 attrs;
1495 uint32_t ucf_flags_src = 0;
1496 uint32_t ucf_flags_dst = 0;
1497 uint16 rename_type;
1498 TALLOC_CTX *ctx = talloc_tos();
1499 bool stream_rename = false;
1500
1501 START_PROFILE(SMBntrename);
1502
1503 if (req->wct < 4) {
1504 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1505 goto out;
1506 }
1507
1508 attrs = SVAL(req->vwv+0, 0);
1509 rename_type = SVAL(req->vwv+1, 0);
1510
1511 p = (const char *)req->buf + 1;
1512 p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1513 &status, &src_has_wcard);
1514 if (!NT_STATUS_IS_OK(status)) {
1515 reply_nterror(req, status);
1516 goto out;
1517 }
1518
1519 if (ms_has_wild(oldname)) {
1520 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1521 goto out;
1522 }
1523
1524 p++;
1525 p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1526 &status, &dest_has_wcard);
1527 if (!NT_STATUS_IS_OK(status)) {
1528 reply_nterror(req, status);
1529 goto out;
1530 }
1531
1532 if (!lp_posix_pathnames()) {
1533 /* The newname must begin with a ':' if the
1534 oldname contains a ':'. */
1535 if (strchr_m(oldname, ':')) {
1536 if (newname[0] != ':') {
1537 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1538 goto out;
1539 }
1540 stream_rename = true;
1541 }
1542 }
1543
1544 /*
1545 * If this is a rename operation, allow wildcards and save the
1546 * destination's last component.
1547 */
1548 if (rename_type == RENAME_FLAG_RENAME) {
1549 ucf_flags_src = UCF_COND_ALLOW_WCARD_LCOMP;
1550 ucf_flags_dst = UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1551 }
1552
1553 /* rename_internals() calls unix_convert(), so don't call it here. */
1554 status = filename_convert(ctx, conn,
1555 req->flags2 & FLAGS2_DFS_PATHNAMES,
1556 oldname,
1557 ucf_flags_src,
1558 NULL,
1559 &smb_fname_old);
1560 if (!NT_STATUS_IS_OK(status)) {
1561 if (NT_STATUS_EQUAL(status,
1562 NT_STATUS_PATH_NOT_COVERED)) {
1563 reply_botherror(req,
1564 NT_STATUS_PATH_NOT_COVERED,
1565 ERRSRV, ERRbadpath);
1566 goto out;
1567 }
1568 reply_nterror(req, status);
1569 goto out;
1570 }
1571
1572 status = filename_convert(ctx, conn,
1573 req->flags2 & FLAGS2_DFS_PATHNAMES,
1574 newname,
1575 ucf_flags_dst,
1576 &dest_has_wcard,
1577 &smb_fname_new);
1578 if (!NT_STATUS_IS_OK(status)) {
1579 if (NT_STATUS_EQUAL(status,
1580 NT_STATUS_PATH_NOT_COVERED)) {
1581 reply_botherror(req,
1582 NT_STATUS_PATH_NOT_COVERED,
1583 ERRSRV, ERRbadpath);
1584 goto out;
1585 }
1586 reply_nterror(req, status);
1587 goto out;
1588 }
1589
1590 if (stream_rename) {
1591 /* smb_fname_new must be the same as smb_fname_old. */
1592 TALLOC_FREE(smb_fname_new->base_name);
1593 smb_fname_new->base_name = talloc_strdup(smb_fname_new,
1594 smb_fname_old->base_name);
1595 if (!smb_fname_new->base_name) {
1596 reply_nterror(req, NT_STATUS_NO_MEMORY);
1597 goto out;
1598 }
1599 }
1600
1601 DEBUG(3,("reply_ntrename: %s -> %s\n",
1602 smb_fname_str_dbg(smb_fname_old),
1603 smb_fname_str_dbg(smb_fname_new)));
1604
1605 switch(rename_type) {
1606 case RENAME_FLAG_RENAME:
1607 status = rename_internals(ctx, conn, req,
1608 smb_fname_old, smb_fname_new,
1609 attrs, False, src_has_wcard,
1610 dest_has_wcard,
1611 DELETE_ACCESS);
1612 break;
1613 case RENAME_FLAG_HARD_LINK:
1614 if (src_has_wcard || dest_has_wcard) {
1615 /* No wildcards. */
1616 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1617 } else {
1618 status = hardlink_internals(ctx, conn,
1619 req,
1620 false,
1621 smb_fname_old,
1622 smb_fname_new);
1623 }
1624 break;
1625 case RENAME_FLAG_COPY:
1626 if (src_has_wcard || dest_has_wcard) {
1627 /* No wildcards. */
1628 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1629 } else {
1630 status = copy_internals(ctx, conn, req,
1631 smb_fname_old,
1632 smb_fname_new,
1633 attrs);
1634 }
1635 break;
1636 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1637 status = NT_STATUS_INVALID_PARAMETER;
1638 break;
1639 default:
1640 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1641 break;
1642 }
1643
1644 if (!NT_STATUS_IS_OK(status)) {
1645 if (open_was_deferred(req->mid)) {
1646 /* We have re-scheduled this call. */
1647 goto out;
1648 }
1649
1650 reply_nterror(req, status);
1651 goto out;
1652 }
1653
1654 reply_outbuf(req, 0, 0);
1655 out:
1656 END_PROFILE(SMBntrename);
1657 return;
1658 }
1659
1660 /****************************************************************************
1661 Reply to a notify change - queue the request and
1662 don't allow a directory to be opened.
1663 ****************************************************************************/
1664
1665 static void smbd_smb1_notify_reply(struct smb_request *req,
1666 NTSTATUS error_code,
1667 uint8_t *buf, size_t len)
1668 {
1669 send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1670 }
1671
1672 static void call_nt_transact_notify_change(connection_struct *conn,
1673 struct smb_request *req,
1674 uint16 **ppsetup,
1675 uint32 setup_count,
1676 char **ppparams,
1677 uint32 parameter_count,
1678 char **ppdata, uint32 data_count,
1679 uint32 max_data_count,
1680 uint32 max_param_count)
1681 {
1682 uint16 *setup = *ppsetup;
1683 files_struct *fsp;
1684 uint32 filter;
1685 NTSTATUS status;
1686 bool recursive;
1687
1688 if(setup_count < 6) {
1689 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1690 return;
1691 }
1692
1693 fsp = file_fsp(req, SVAL(setup,4));
1694 filter = IVAL(setup, 0);
1695 recursive = (SVAL(setup, 6) != 0) ? True : False;
1696
1697 DEBUG(3,("call_nt_transact_notify_change\n"));
1698
1699 if(!fsp) {
1700 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1701 return;
1702 }
1703
1704 {
1705 char *filter_string;
1706
1707 if (!(filter_string = notify_filter_string(NULL, filter))) {
1708 reply_nterror(req,NT_STATUS_NO_MEMORY);
1709 return;
1710 }
1711
1712 DEBUG(3,("call_nt_transact_notify_change: notify change "
1713 "called on %s, filter = %s, recursive = %d\n",
1714 fsp_str_dbg(fsp), filter_string, recursive));
1715
1716 TALLOC_FREE(filter_string);
1717 }
1718
1719 if((!fsp->is_directory) || (conn != fsp->conn)) {
1720 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1721 return;
1722 }
1723
1724 if (fsp->notify == NULL) {
1725
1726 status = change_notify_create(fsp, filter, recursive);
1727
1728 if (!NT_STATUS_IS_OK(status)) {
1729 DEBUG(10, ("change_notify_create returned %s\n",
1730 nt_errstr(status)));
1731 reply_nterror(req, status);
1732 return;
1733 }
1734 }
1735
1736 if (fsp->notify->num_changes != 0) {
1737
1738 /*
1739 * We've got changes pending, respond immediately
1740 */
1741
1742 /*
1743 * TODO: write a torture test to check the filtering behaviour
1744 * here.
1745 */
1746
1747 change_notify_reply(req,
1748 NT_STATUS_OK,
1749 max_param_count,
1750 fsp->notify,
1751 smbd_smb1_notify_reply);
1752
1753 /*
1754 * change_notify_reply() above has independently sent its
1755 * results
1756 */
1757 return;
1758 }
1759
1760 /*
1761 * No changes pending, queue the request
1762 */
1763
1764 status = change_notify_add_request(req,
1765 max_param_count,
1766 filter,
1767 recursive, fsp,
1768 smbd_smb1_notify_reply);
1769 if (!NT_STATUS_IS_OK(status)) {
1770 reply_nterror(req, status);
1771 }
1772 return;
1773 }
1774
1775 /****************************************************************************
1776 Reply to an NT transact rename command.
1777 ****************************************************************************/
1778
1779 static void call_nt_transact_rename(connection_struct *conn,
1780 struct smb_request *req,
1781 uint16 **ppsetup, uint32 setup_count,
1782 char **ppparams, uint32 parameter_count,
1783 char **ppdata, uint32 data_count,
1784 uint32 max_data_count)
1785 {
1786 char *params = *ppparams;
1787 char *new_name = NULL;
1788 files_struct *fsp = NULL;
1789 bool dest_has_wcard = False;
1790 NTSTATUS status;
1791 TALLOC_CTX *ctx = talloc_tos();
1792
1793 if(parameter_count < 5) {
1794 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1795 return;
1796 }
1797
1798 fsp = file_fsp(req, SVAL(params, 0));
1799 if (!check_fsp(conn, req, fsp)) {
1800 return;
1801 }
1802 srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1803 parameter_count - 4,
1804 STR_TERMINATE, &status, &dest_has_wcard);
1805 if (!NT_STATUS_IS_OK(status)) {
1806 reply_nterror(req, status);
1807 return;
1808 }
1809
1810 /*
1811 * W2K3 ignores this request as the RAW-RENAME test
1812 * demonstrates, so we do.
1813 */
1814 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1815
1816 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1817 fsp_str_dbg(fsp), new_name));
1818
1819 return;
1820 }
1821
1822 /******************************************************************************
1823 Fake up a completely empty SD.
1824 *******************************************************************************/
1825
1826 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, struct security_descriptor **ppsd)
1827 {
1828 size_t sd_size;
1829
1830 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1831 if(!*ppsd) {
1832 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1833 return NT_STATUS_NO_MEMORY;
1834 }
1835
1836 return NT_STATUS_OK;
1837 }
1838
1839 /****************************************************************************
1840 Reply to query a security descriptor.
1841 Callable from SMB2 and SMB2.
1842 If it returns NT_STATUS_BUFFER_TOO_SMALL, pdata_size is initialized with
1843 the required size.
1844 ****************************************************************************/
1845
1846 NTSTATUS smbd_do_query_security_desc(connection_struct *conn,
1847 TALLOC_CTX *mem_ctx,
1848 files_struct *fsp,
1849 uint32_t security_info_wanted,
1850 uint32_t max_data_count,
1851 uint8_t **ppmarshalled_sd,
1852 size_t *psd_size)
1853 {
1854 NTSTATUS status;
1855 struct security_descriptor *psd = NULL;
1856
1857 /*
1858 * Get the permissions to return.
1859 */
1860
1861 if ((security_info_wanted & SECINFO_SACL) &&
1862 !(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
1863 return NT_STATUS_ACCESS_DENIED;
1864 }
1865
1866 if ((security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|SECINFO_GROUP)) &&
1867 !(fsp->access_mask & SEC_STD_READ_CONTROL)) {
1868 return NT_STATUS_ACCESS_DENIED;
1869 }
1870
1871 if (!lp_nt_acl_support(SNUM(conn))) {
1872 status = get_null_nt_acl(mem_ctx, &psd);
1873 } else {
1874 status = SMB_VFS_FGET_NT_ACL(
1875 fsp, security_info_wanted, &psd);
1876 }
1877 if (!NT_STATUS_IS_OK(status)) {
1878 return status;
1879 }
1880
1881 if (!(security_info_wanted & SECINFO_OWNER)) {
1882 psd->owner_sid = NULL;
1883 }
1884 if (!(security_info_wanted & SECINFO_GROUP)) {
1885 psd->group_sid = NULL;
1886 }
1887 if (!(security_info_wanted & SECINFO_DACL)) {
1888 psd->dacl = NULL;
1889 }
1890 if (!(security_info_wanted & SECINFO_SACL)) {
1891 psd->sacl = NULL;
1892 }
1893
1894 /* If the SACL/DACL is NULL, but was requested, we mark that it is
1895 * present in the reply to match Windows behavior */
1896 if (psd->sacl == NULL &&
1897 security_info_wanted & SECINFO_SACL)
1898 psd->type |= SEC_DESC_SACL_PRESENT;
1899 if (psd->dacl == NULL &&
1900 security_info_wanted & SECINFO_DACL)
1901 psd->type |= SEC_DESC_DACL_PRESENT;
1902
1903 *psd_size = ndr_size_security_descriptor(psd, 0);
1904
1905 DEBUG(3,("smbd_do_query_security_desc: sd_size = %lu.\n",
1906 (unsigned long)*psd_size));
1907
1908 if (DEBUGLEVEL >= 10) {
1909 DEBUG(10,("smbd_do_query_security_desc for file %s\n",
1910 fsp_str_dbg(fsp)));
1911 NDR_PRINT_DEBUG(security_descriptor, psd);
1912 }
1913
1914 if (max_data_count < *psd_size) {
1915 TALLOC_FREE(psd);
1916 return NT_STATUS_BUFFER_TOO_SMALL;
1917 }
1918
1919 status = marshall_sec_desc(mem_ctx, psd,
1920 ppmarshalled_sd, psd_size);
1921
1922 if (!NT_STATUS_IS_OK(status)) {
1923 TALLOC_FREE(psd);
1924 return status;
1925 }
1926
1927 TALLOC_FREE(psd);
1928 return NT_STATUS_OK;
1929 }
1930
1931 /****************************************************************************
1932 SMB1 reply to query a security descriptor.
1933 ****************************************************************************/
1934
1935 static void call_nt_transact_query_security_desc(connection_struct *conn,
1936 struct smb_request *req,
1937 uint16 **ppsetup,
1938 uint32 setup_count,
1939 char **ppparams,
1940 uint32 parameter_count,
1941 char **ppdata,
1942 uint32 data_count,
1943 uint32 max_data_count)
1944 {
1945 char *params = *ppparams;
1946 char *data = *ppdata;
1947 size_t sd_size = 0;
1948 uint32 security_info_wanted;
1949 files_struct *fsp = NULL;
1950 NTSTATUS status;
1951 uint8_t *marshalled_sd = NULL;
1952
1953 if(parameter_count < 8) {
1954 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1955 return;
1956 }
1957
1958 fsp = file_fsp(req, SVAL(params,0));
1959 if(!fsp) {
1960 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1961 return;
1962 }
1963
1964 security_info_wanted = IVAL(params,4);
1965
1966 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
1967 "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
1968 (unsigned int)security_info_wanted));
1969
1970 params = nttrans_realloc(ppparams, 4);
1971 if(params == NULL) {
1972 reply_nterror(req, NT_STATUS_NO_MEMORY);
1973 return;
1974 }
1975
1976 /*
1977 * Get the permissions to return.
1978 */
1979
1980 status = smbd_do_query_security_desc(conn,
1981 talloc_tos(),
1982 fsp,
1983 security_info_wanted,
1984 max_data_count,
1985 &marshalled_sd,
1986 &sd_size);
1987
1988 if (NT_STATUS_EQUAL(status, NT_STATUS_BUFFER_TOO_SMALL)) {
1989 SIVAL(params,0,(uint32_t)sd_size);
1990 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1991 params, 4, NULL, 0);
1992 return;
1993 }
1994
1995 if (!NT_STATUS_IS_OK(status)) {
1996 reply_nterror(req, status);
1997 return;
1998 }
1999
2000 SMB_ASSERT(sd_size > 0);
2001
2002 SIVAL(params,0,(uint32_t)sd_size);
2003
2004 if (max_data_count < sd_size) {
2005 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2006 params, 4, NULL, 0);
2007 return;
2008 }
2009
2010 /*
2011 * Allocate the data we will return.
2012 */
2013
2014 data = nttrans_realloc(ppdata, sd_size);
2015 if(data == NULL) {
2016 reply_nterror(req, NT_STATUS_NO_MEMORY);
2017 return;
2018 }
2019
2020 memcpy(data, marshalled_sd, sd_size);
2021
2022 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
2023
2024 return;
2025 }
2026
2027 /****************************************************************************
2028 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
2029 ****************************************************************************/
2030
2031 static void call_nt_transact_set_security_desc(connection_struct *conn,
2032 struct smb_request *req,
2033 uint16 **ppsetup,
2034 uint32 setup_count,
2035 char **ppparams,
2036 uint32 parameter_count,
2037 char **ppdata,
2038 uint32 data_count,
2039 uint32 max_data_count)
2040 {
2041 char *params= *ppparams;
2042 char *data = *ppdata;
2043 files_struct *fsp = NULL;
2044 uint32 security_info_sent = 0;
2045 NTSTATUS status;
2046
2047 if(parameter_count < 8) {
2048 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2049 return;
2050 }
2051
2052 if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
2053 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2054 return;
2055 }
2056
2057 if (!CAN_WRITE(fsp->conn)) {
2058 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2059 return;
2060 }
2061
2062 if(!lp_nt_acl_support(SNUM(conn))) {
2063 goto done;
2064 }
2065
2066 security_info_sent = IVAL(params,4);
2067
2068 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
2069 fsp_str_dbg(fsp), (unsigned int)security_info_sent));
2070
2071 if (data_count == 0) {
2072 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2073 return;
2074 }
2075
2076 status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
2077
2078 if (!NT_STATUS_IS_OK(status)) {
2079 reply_nterror(req, status);
2080 return;
2081 }
2082
2083 done:
2084 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2085 return;
2086 }
2087
2088 /****************************************************************************
2089 Reply to NT IOCTL
2090 ****************************************************************************/
2091
2092 static void call_nt_transact_ioctl(connection_struct *conn,
2093 struct smb_request *req,
2094 uint16 **ppsetup, uint32 setup_count,
2095 char **ppparams, uint32 parameter_count,
2096 char **ppdata, uint32 data_count,
2097 uint32 max_data_count)
2098 {
2099 uint32 function;
2100 uint16 fidnum;
2101 files_struct *fsp;
2102 uint8 isFSctl;
2103 uint8 compfilter;
2104 char *pdata = *ppdata;
2105
2106 if (setup_count != 8) {
2107 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
2108 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2109 return;
2110 }
2111
2112 function = IVAL(*ppsetup, 0);
2113 fidnum = SVAL(*ppsetup, 4);
2114 isFSctl = CVAL(*ppsetup, 6);
2115 compfilter = CVAL(*ppsetup, 7);
2116
2117 DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
2118 function, fidnum, isFSctl, compfilter));
2119
2120 fsp=file_fsp(req, fidnum);
2121 /* this check is done in each implemented function case for now
2122 because I don't want to break anything... --metze
2123 FSP_BELONGS_CONN(fsp,conn);*/
2124
2125 SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
2126
2127 switch (function) {
2128 case FSCTL_SET_SPARSE:
2129 {
2130 bool set_sparse = true;
2131 NTSTATUS status;
2132
2133 if (data_count >= 1 && pdata[0] == 0) {
2134 set_sparse = false;
2135 }
2136
2137 DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X]set[%u]\n",
2138 fidnum, set_sparse));
2139
2140 if (!check_fsp_open(conn, req, fsp)) {
2141 return;
2142 }
2143
2144 status = file_set_sparse(conn, fsp, set_sparse);
2145 if (!NT_STATUS_IS_OK(status)) {
2146 DEBUG(9,("FSCTL_SET_SPARSE: fname[%s] set[%u] - %s\n",
2147 smb_fname_str_dbg(fsp->fsp_name), set_sparse, nt_errstr(status)));
2148 reply_nterror(req, status);
2149 return;
2150 }
2151
2152 DEBUG(10,("FSCTL_SET_SPARSE: fname[%s] set[%u] - %s\n",
2153 smb_fname_str_dbg(fsp->fsp_name), set_sparse, nt_errstr(status)));
2154 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2155 return;
2156 }
2157 case FSCTL_CREATE_OR_GET_OBJECT_ID:
2158 {
2159 unsigned char objid[16];
2160
2161 /* This should return the object-id on this file.
2162 * I think I'll make this be the inode+dev. JRA.
2163 */
2164
2165 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
2166
2167 if (!check_fsp_open(conn, req, fsp)) {
2168 return;
2169 }
2170
2171 data_count = 64;
2172 pdata = nttrans_realloc(ppdata, data_count);
2173 if (pdata == NULL) {
2174 reply_nterror(req, NT_STATUS_NO_MEMORY);
2175 return;
2176 }
2177
2178 /* For backwards compatibility only store the dev/inode. */
2179 push_file_id_16(pdata, &fsp->file_id);
2180 memcpy(pdata+16,create_volume_objectid(conn,objid),16);
2181 push_file_id_16(pdata+32, &fsp->file_id);
2182 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2183 pdata, data_count);
2184 return;
2185 }
2186
2187 case FSCTL_GET_REPARSE_POINT:
2188 /* pretend this fail - my winXP does it like this
2189 * --metze
2190 */
2191
2192 DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
2193 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
2194 return;
2195
2196 case FSCTL_SET_REPARSE_POINT:
2197 /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
2198 * --metze
2199 */
2200
2201 DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
2202 reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
2203 return;
2204
2205 case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
2206 {
2207 /*
2208 * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
2209 * and return their volume names. If max_data_count is 16, then it is just
2210 * asking for the number of volumes and length of the combined names.
2211 *
2212 * pdata is the data allocated by our caller, but that uses
2213 * total_data_count (which is 0 in our case) rather than max_data_count.
2214 * Allocate the correct amount and return the pointer to let
2215 * it be deallocated when we return.
2216 */
2217 struct shadow_copy_data *shadow_data = NULL;
2218 TALLOC_CTX *shadow_mem_ctx = NULL;
2219 bool labels = False;
2220 uint32 labels_data_count = 0;
2221 uint32 i;
2222 char *cur_pdata;
2223
2224 if (!check_fsp_open(conn, req, fsp)) {
2225 return;
2226 }
2227
2228 if (max_data_count < 16) {
2229 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
2230 max_data_count));
2231 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2232 return;
2233 }
2234
2235 if (max_data_count > 16) {
2236 labels = True;
2237 }
2238
2239 shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
2240 if (shadow_mem_ctx == NULL) {
2241 DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
2242 reply_nterror(req, NT_STATUS_NO_MEMORY);
2243 return;
2244 }
2245
2246 shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,
2247 struct shadow_copy_data);
2248 if (shadow_data == NULL) {
2249 DEBUG(0,("TALLOC_ZERO() failed!\n"));
2250 talloc_destroy(shadow_mem_ctx);
2251 reply_nterror(req, NT_STATUS_NO_MEMORY);
2252 return;
2253 }
2254
2255 shadow_data->mem_ctx = shadow_mem_ctx;
2256
2257 /*
2258 * Call the VFS routine to actually do the work.
2259 */
2260 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
2261 talloc_destroy(shadow_data->mem_ctx);
2262 if (errno == ENOSYS) {
2263 DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
2264 conn->connectpath));
2265 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2266 return;
2267 } else {
2268 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
2269 conn->connectpath));
2270 reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
2271 return;
2272 }
2273 }
2274
2275 labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
2276
2277 if (!labels) {
2278 data_count = 16;
2279 } else {
2280 data_count = 12+labels_data_count+4;
2281 }
2282
2283 if (max_data_count<data_count) {
2284 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
2285 max_data_count,data_count));
2286 talloc_destroy(shadow_data->mem_ctx);
2287 reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
2288 return;
2289 }
2290
2291 pdata = nttrans_realloc(ppdata, data_count);
2292 if (pdata == NULL) {
2293 talloc_destroy(shadow_data->mem_ctx);
2294 reply_nterror(req, NT_STATUS_NO_MEMORY);
2295 return;
2296 }
2297
2298 cur_pdata = pdata;
2299
2300 /* num_volumes 4 bytes */
2301 SIVAL(pdata,0,shadow_data->num_volumes);
2302
2303 if (labels) {
2304 /* num_labels 4 bytes */
2305 SIVAL(pdata,4,shadow_data->num_volumes);
2306 }
2307
2308 /* needed_data_count 4 bytes */
2309 SIVAL(pdata, 8, labels_data_count+4);
2310
2311 cur_pdata+=12;
2312
2313 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
2314 shadow_data->num_volumes, fsp_str_dbg(fsp)));
2315 if (labels && shadow_data->labels) {
2316 for (i=0;i<shadow_data->num_volumes;i++) {
2317 srvstr_push(pdata, req->flags2,
2318 cur_pdata, shadow_data->labels[i],
2319 2*sizeof(SHADOW_COPY_LABEL),
2320 STR_UNICODE|STR_TERMINATE);
2321 cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
2322 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
2323 }
2324 }
2325
2326 talloc_destroy(shadow_data->mem_ctx);
2327
2328 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2329 pdata, data_count);
2330
2331 return;
2332 }
2333
2334 case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
2335 {
2336 /* pretend this succeeded -
2337 *
2338 * we have to send back a list with all files owned by this SID
2339 *
2340 * but I have to check that --metze
2341 */
2342 struct dom_sid sid;
2343 uid_t uid;
2344 size_t sid_len;
2345
2346 DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
2347
2348 if (!check_fsp_open(conn, req, fsp)) {
2349 return;
2350 }
2351
2352 if (data_count < 8) {
2353 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2354 return;
2355 }
2356
2357 sid_len = MIN(data_count-4,SID_MAX_SIZE);
2358
2359 /* unknown 4 bytes: this is not the length of the sid :-( */
2360 /*unknown = IVAL(pdata,0);*/
2361
2362 if (!sid_parse(pdata+4,sid_len,&sid)) {
2363 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2364 return;
2365 }
2366 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
2367
2368 if (!sid_to_uid(&sid, &uid)) {
2369 DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
2370 sid_string_dbg(&sid),
2371 (unsigned long)sid_len));
2372 uid = (-1);
2373 }
2374
2375 /* we can take a look at the find source :-)
2376 *
2377 * find ./ -uid $uid -name '*' is what we need here
2378 *
2379 *
2380 * and send 4bytes len and then NULL terminated unicode strings
2381 * for each file
2382 *
2383 * but I don't know how to deal with the paged results
2384 * (maybe we can hang the result anywhere in the fsp struct)
2385 *
2386 * we don't send all files at once
2387 * and at the next we should *not* start from the beginning,
2388 * so we have to cache the result
2389 *
2390 * --metze
2391 */
2392
2393 /* this works for now... */
2394 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2395 return;
2396 }
2397 case FSCTL_QUERY_ALLOCATED_RANGES:
2398 {
2399 /* FIXME: This is just a dummy reply, telling that all of the
2400 * file is allocated. MKS cp needs that.
2401 * Adding the real allocated ranges via FIEMAP on Linux
2402 * and SEEK_DATA/SEEK_HOLE on Solaris is needed to make
2403 * this FSCTL correct for sparse files.
2404 */
2405 NTSTATUS status;
2406 uint64_t offset, length;
2407
2408 if (!check_fsp_open(conn, req, fsp)) {
2409 return;
2410 }
2411
2412 if (data_count != 16) {
2413 DEBUG(0,("FSCTL_QUERY_ALLOCATED_RANGES: data_count(%u) != 16 is invalid!\n",
2414 data_count));
2415 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2416 return;
2417 }
2418
2419 if (max_data_count < 16) {
2420 DEBUG(0,("FSCTL_QUERY_ALLOCATED_RANGES: max_data_count(%u) < 16 is invalid!\n",
2421 max_data_count));
2422 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2423 return;
2424 }
2425
2426 offset = BVAL(pdata,0);
2427 length = BVAL(pdata,8);
2428
2429 if (offset + length < offset) {
2430 /* No 64-bit integer wrap. */
2431 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2432 return;
2433 }
2434
2435 status = vfs_stat_fsp(fsp);
2436 if (!NT_STATUS_IS_OK(status)) {
2437 reply_nterror(req, status);
2438 return;
2439 }
2440
2441 if (offset > fsp->fsp_name->st.st_ex_size ||
2442 fsp->fsp_name->st.st_ex_size == 0 ||
2443 length == 0) {
2444 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2445 } else {
2446 uint64_t end = offset + length;
2447 end = MIN(end, fsp->fsp_name->st.st_ex_size);
2448 SBVAL(pdata,0,0);
2449 SBVAL(pdata,8,end);
2450 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2451 pdata, 16);
2452 }
2453 return;
2454 }
2455 case FSCTL_IS_VOLUME_DIRTY:
2456 DEBUG(10,("FSCTL_IS_VOLUME_DIRTY: called on FID[0x%04X] "
2457 "(but not implemented)\n", (int)fidnum));
2458 /*
2459 * http://msdn.microsoft.com/en-us/library/cc232128%28PROT.10%29.aspx
2460 * says we have to respond with NT_STATUS_INVALID_PARAMETER
2461 */
2462 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2463 return;
2464 default:
2465 /* Only print this once... */
2466 if (!logged_ioctl_message) {
2467 logged_ioctl_message = true;
2468 DEBUG(2,("call_nt_transact_ioctl(0x%x): "
2469 "Currently not implemented.\n",
2470 function));
2471 }
2472 }
2473
2474 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2475 }
2476
2477
2478 #ifdef HAVE_SYS_QUOTAS
2479 /****************************************************************************
2480 Reply to get user quota
2481 ****************************************************************************/
2482
2483 static void call_nt_transact_get_user_quota(connection_struct *conn,
2484 struct smb_request *req,
2485 uint16 **ppsetup,
2486 uint32 setup_count,
2487 char **ppparams,
2488 uint32 parameter_count,
2489 char **ppdata,
2490 uint32 data_count,
2491 uint32 max_data_count)
2492 {
2493 NTSTATUS nt_status = NT_STATUS_OK;
2494 char *params = *ppparams;
2495 char *pdata = *ppdata;
2496 char *entry;
2497 int data_len=0,param_len=0;
2498 int qt_len=0;
2499 int entry_len = 0;
2500 files_struct *fsp = NULL;
2501 uint16 level = 0;
2502 size_t sid_len;
2503 struct dom_sid sid;
2504 bool start_enum = True;
2505 SMB_NTQUOTA_STRUCT qt;
2506 SMB_NTQUOTA_LIST *tmp_list;
2507 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2508
2509 ZERO_STRUCT(qt);
2510
2511 /* access check */
2512 if (get_current_uid(conn) != 0) {
2513 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2514 "[%s]\n", lp_servicename(SNUM(conn)),
2515 conn->session_info->unix_name));
2516 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2517 return;
2518 }
2519
2520 /*
2521 * Ensure minimum number of parameters sent.
2522 */
2523
2524 if (parameter_count < 4) {
2525 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2526 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2527 return;
2528 }
2529
2530 /* maybe we can check the quota_fnum */
2531 fsp = file_fsp(req, SVAL(params,0));
2532 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2533 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2534 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2535 return;
2536 }
2537
2538 /* the NULL pointer checking for fsp->fake_file_handle->pd
2539 * is done by CHECK_NTQUOTA_HANDLE_OK()
2540 */
2541 qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2542
2543 level = SVAL(params,2);
2544
2545 /* unknown 12 bytes leading in params */
2546
2547 switch (level) {
2548 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2549 /* seems that we should continue with the enum here --metze */
2550
2551 if (qt_handle->quota_list!=NULL &&
2552 qt_handle->tmp_list==NULL) {
2553
2554 /* free the list */
2555 free_ntquota_list(&(qt_handle->quota_list));
2556
2557 /* Realloc the size of parameters and data we will return */
2558 param_len = 4;
2559 params = nttrans_realloc(ppparams, param_len);
2560 if(params == NULL) {
2561 reply_nterror(req, NT_STATUS_NO_MEMORY);
2562 return;
2563 }
2564
2565 data_len = 0;
2566 SIVAL(params,0,data_len);
2567
2568 break;
2569 }
2570
2571 start_enum = False;
2572
2573 case TRANSACT_GET_USER_QUOTA_LIST_START:
2574
2575 if (qt_handle->quota_list==NULL &&
2576 qt_handle->tmp_list==NULL) {
2577 start_enum = True;
2578 }
2579
2580 if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2581 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2582 return;
2583 }
2584
2585 /* Realloc the size of parameters and data we will return */
2586 param_len = 4;
2587 params = nttrans_realloc(ppparams, param_len);
2588 if(params == NULL) {
2589 reply_nterror(req, NT_STATUS_NO_MEMORY);
2590 return;
2591 }
2592
2593 /* we should not trust the value in max_data_count*/
2594 max_data_count = MIN(max_data_count,2048);
2595
2596 pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2597 if(pdata == NULL) {
2598 reply_nterror(req, NT_STATUS_NO_MEMORY);
2599 return;
2600 }
2601
2602 entry = pdata;
2603
2604 /* set params Size of returned Quota Data 4 bytes*/
2605 /* but set it later when we know it */
2606
2607 /* for each entry push the data */
2608
2609 if (start_enum) {
2610 qt_handle->tmp_list = qt_handle->quota_list;
2611 }
2612
2613 tmp_list = qt_handle->tmp_list;
2614
2615 for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2616 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2617
2618 sid_len = ndr_size_dom_sid(
2619 &tmp_list->quotas->sid, 0);
2620 entry_len = 40 + sid_len;
2621
2622 /* nextoffset entry 4 bytes */
2623 SIVAL(entry,0,entry_len);
2624
2625 /* then the len of the SID 4 bytes */
2626 SIVAL(entry,4,sid_len);
2627
2628 /* unknown data 8 bytes uint64_t */
2629 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2630
2631 /* the used disk space 8 bytes uint64_t */
2632 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2633
2634 /* the soft quotas 8 bytes uint64_t */
2635 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2636
2637 /* the hard quotas 8 bytes uint64_t */
2638 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2639
2640 /* and now the SID */
2641 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2642 }
2643
2644 qt_handle->tmp_list = tmp_list;
2645
2646 /* overwrite the offset of the last entry */
2647 SIVAL(entry-entry_len,0,0);
2648
2649 data_len = 4+qt_len;
2650 /* overwrite the params quota_data_len */
2651 SIVAL(params,0,data_len);
2652
2653 break;
2654
2655 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2656
2657 /* unknown 4 bytes IVAL(pdata,0) */
2658
2659 if (data_count < 8) {
2660 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2661 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2662 return;
2663 }
2664
2665 sid_len = IVAL(pdata,4);
2666 /* Ensure this is less than 1mb. */
2667 if (sid_len > (1024*1024)) {
2668 reply_nterror(req, NT_STATUS_NO_MEMORY);
2669 return;
2670 }
2671
2672 if (data_count < 8+sid_len) {
2673 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2674 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2675 return;
2676 }
2677
2678 data_len = 4+40+sid_len;
2679
2680 if (max_data_count < data_len) {
2681 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2682 max_data_count, data_len));
2683 param_len = 4;
2684 SIVAL(params,0,data_len);
2685 data_len = 0;
2686 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2687 break;
2688 }
2689
2690 if (!sid_parse(pdata+8,sid_len,&sid)) {
2691 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2692 return;
2693 }
2694
2695 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2696 ZERO_STRUCT(qt);
2697 /*
2698 * we have to return zero's in all fields
2699 * instead of returning an error here
2700 * --metze
2701 */
2702 }
2703
2704 /* Realloc the size of parameters and data we will return */
2705 param_len = 4;
2706 params = nttrans_realloc(ppparams, param_len);
2707 if(params == NULL) {
2708 reply_nterror(req, NT_STATUS_NO_MEMORY);
2709 return;
2710 }
2711
2712 pdata = nttrans_realloc(ppdata, data_len);
2713 if(pdata == NULL) {
2714 reply_nterror(req, NT_STATUS_NO_MEMORY);
2715 return;
2716 }
2717
2718 entry = pdata;
2719
2720 /* set params Size of returned Quota Data 4 bytes*/
2721 SIVAL(params,0,data_len);
2722
2723 /* nextoffset entry 4 bytes */
2724 SIVAL(entry,0,0);
2725
2726 /* then the len of the SID 4 bytes */
2727 SIVAL(entry,4,sid_len);
2728
2729 /* unknown data 8 bytes uint64_t */
2730 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2731
2732 /* the used disk space 8 bytes uint64_t */
2733 SBIG_UINT(entry,16,qt.usedspace);
2734
2735 /* the soft quotas 8 bytes uint64_t */
2736 SBIG_UINT(entry,24,qt.softlim);
2737
2738 /* the hard quotas 8 bytes uint64_t */
2739 SBIG_UINT(entry,32,qt.hardlim);
2740
2741 /* and now the SID */
2742 sid_linearize(entry+40, sid_len, &sid);
2743
2744 break;
2745
2746 default:
2747 DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2748 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2749 return;
2750 break;
2751 }
2752
2753 send_nt_replies(conn, req, nt_status, params, param_len,
2754 pdata, data_len);
2755 }
2756
2757 /****************************************************************************
2758 Reply to set user quota
2759 ****************************************************************************/
2760
2761 static void call_nt_transact_set_user_quota(connection_struct *conn,
2762 struct smb_request *req,
2763 uint16 **ppsetup,
2764 uint32 setup_count,
2765 char **ppparams,
2766 uint32 parameter_count,
2767 char **ppdata,
2768 uint32 data_count,
2769 uint32 max_data_count)
2770 {
2771 char *params = *ppparams;
2772 char *pdata = *ppdata;
2773 int data_len=0,param_len=0;
2774 SMB_NTQUOTA_STRUCT qt;
2775 size_t sid_len;
2776 struct dom_sid sid;
2777 files_struct *fsp = NULL;
2778
2779 ZERO_STRUCT(qt);
2780
2781 /* access check */
2782 if (get_current_uid(conn) != 0) {
2783 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2784 "[%s]\n", lp_servicename(SNUM(conn)),
2785 conn->session_info->unix_name));
2786 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2787 return;
2788 }
2789
2790 /*
2791 * Ensure minimum number of parameters sent.
2792 */
2793
2794 if (parameter_count < 2) {
2795 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2796 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2797 return;
2798 }
2799
2800 /* maybe we can check the quota_fnum */
2801 fsp = file_fsp(req, SVAL(params,0));
2802 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2803 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2804 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2805 return;
2806 }
2807
2808 if (data_count < 40) {
2809 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2810 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2811 return;
2812 }
2813
2814 /* offset to next quota record.
2815 * 4 bytes IVAL(pdata,0)
2816 * unused here...
2817 */
2818
2819 /* sid len */
2820 sid_len = IVAL(pdata,4);
2821
2822 if (data_count < 40+sid_len || (40+sid_len < sid_len)) {
2823 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2824 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2825 return;
2826 }
2827
2828 /* unknown 8 bytes in pdata
2829 * maybe its the change time in NTTIME
2830 */
2831
2832 /* the used space 8 bytes (uint64_t)*/
2833 qt.usedspace = BVAL(pdata,16);
2834
2835 /* the soft quotas 8 bytes (uint64_t)*/
2836 qt.softlim = BVAL(pdata,24);
2837
2838 /* the hard quotas 8 bytes (uint64_t)*/
2839 qt.hardlim = BVAL(pdata,32);
2840
2841 if (!sid_parse(pdata+40,sid_len,&sid)) {
2842 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2843 return;
2844 }
2845
2846 DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2847
2848 /* 44 unknown bytes left... */
2849
2850 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2851 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2852 return;
2853 }
2854
2855 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2856 pdata, data_len);
2857 }
2858 #endif /* HAVE_SYS_QUOTAS */
2859
2860 static void handle_nttrans(connection_struct *conn,
2861 struct trans_state *state,
2862 struct smb_request *req)
2863 {
2864 if (get_Protocol() >= PROTOCOL_NT1) {
2865 req->flags2 |= 0x40; /* IS_LONG_NAME */
2866 SSVAL(req->inbuf,smb_flg2,req->flags2);
2867 }
2868
2869
2870 SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2871
2872 /* Now we must call the relevant NT_TRANS function */
2873 switch(state->call) {
2874 case NT_TRANSACT_CREATE:
2875 {
2876 START_PROFILE(NT_transact_create);
2877 call_nt_transact_create(
2878 conn, req,
2879 &state->setup, state->setup_count,
2880 &state->param, state->total_param,
2881 &state->data, state->total_data,
2882 state->max_data_return);
2883 END_PROFILE(NT_transact_create);
2884 break;
2885 }
2886
2887 case NT_TRANSACT_IOCTL:
2888 {
2889 START_PROFILE(NT_transact_ioctl);
2890 call_nt_transact_ioctl(
2891 conn, req,
2892 &state->setup, state->setup_count,
2893 &state->param, state->total_param,
2894 &state->data, state->total_data,
2895 state->max_data_return);
2896 END_PROFILE(NT_transact_ioctl);
2897 break;
2898 }
2899
2900 case NT_TRANSACT_SET_SECURITY_DESC:
2901 {
2902 START_PROFILE(NT_transact_set_security_desc);
2903 call_nt_transact_set_security_desc(
2904 conn, req,
2905 &state->setup, state->setup_count,
2906 &state->param, state->total_param,
2907 &state->data, state->total_data,
2908 state->max_data_return);
2909 END_PROFILE(NT_transact_set_security_desc);
2910 break;
2911 }
2912
2913 case NT_TRANSACT_NOTIFY_CHANGE:
2914 {
2915 START_PROFILE(NT_transact_notify_change);
2916 call_nt_transact_notify_change(
2917 conn, req,
2918 &state->setup, state->setup_count,
2919 &state->param, state->total_param,
2920 &state->data, state->total_data,
2921 state->max_data_return,
2922 state->max_param_return);
2923 END_PROFILE(NT_transact_notify_change);
2924 break;
2925 }
2926
2927 case NT_TRANSACT_RENAME:
2928 {
2929 START_PROFILE(NT_transact_rename);
2930 call_nt_transact_rename(
2931 conn, req,
2932 &state->setup, state->setup_count,
2933 &state->param, state->total_param,
2934 &state->data, state->total_data,
2935 state->max_data_return);
2936 END_PROFILE(NT_transact_rename);
2937 break;
2938 }
2939
2940 case NT_TRANSACT_QUERY_SECURITY_DESC:
2941 {
2942 START_PROFILE(NT_transact_query_security_desc);
2943 call_nt_transact_query_security_desc(
2944 conn, req,
2945 &state->setup, state->setup_count,
2946 &state->param, state->total_param,
2947 &state->data, state->total_data,
2948 state->max_data_return);
2949 END_PROFILE(NT_transact_query_security_desc);
2950 break;
2951 }
2952
2953 #ifdef HAVE_SYS_QUOTAS
2954 case NT_TRANSACT_GET_USER_QUOTA:
2955 {
2956 START_PROFILE(NT_transact_get_user_quota);
2957 call_nt_transact_get_user_quota(
2958 conn, req,
2959 &state->setup, state->setup_count,
2960 &state->param, state->total_param,
2961 &state->data, state->total_data,
2962 state->max_data_return);
2963 END_PROFILE(NT_transact_get_user_quota);
2964 break;
2965 }
2966
2967 case NT_TRANSACT_SET_USER_QUOTA:
2968 {
2969 START_PROFILE(NT_transact_set_user_quota);
2970 call_nt_transact_set_user_quota(
2971 conn, req,
2972 &state->setup, state->setup_count,
2973 &state->param, state->total_param,
2974 &state->data, state->total_data,
2975 state->max_data_return);
2976 END_PROFILE(NT_transact_set_user_quota);
2977 break;
2978 }
2979 #endif /* HAVE_SYS_QUOTAS */
2980
2981 default:
2982 /* Error in request */
2983 DEBUG(0,("handle_nttrans: Unknown request %d in "
2984 "nttrans call\n", state->call));
2985 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2986 return;
2987 }
2988 return;
2989 }
2990
2991 /****************************************************************************
2992 Reply to a SMBNTtrans.
2993 ****************************************************************************/
2994
2995 void reply_nttrans(struct smb_request *req)
2996 {
2997 connection_struct *conn = req->conn;
2998 uint32_t pscnt;
2999 uint32_t psoff;
3000 uint32_t dscnt;
3001 uint32_t dsoff;
3002 uint16 function_code;
3003 NTSTATUS result;
3004 struct trans_state *state;
3005
3006 START_PROFILE(SMBnttrans);
3007
3008 if (req->wct < 19) {
3009 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3010 END_PROFILE(SMBnttrans);
3011 return;
3012 }
3013
3014 pscnt = IVAL(req->vwv+9, 1);
3015 psoff = IVAL(req->vwv+11, 1);
3016 dscnt = IVAL(req->vwv+13, 1);
3017 dsoff = IVAL(req->vwv+15, 1);
3018 function_code = SVAL(req->vwv+18, 0);
3019
3020 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
3021 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
3022 END_PROFILE(SMBnttrans);
3023 return;
3024 }
3025
3026 result = allow_new_trans(conn->pending_trans, req->mid);
3027 if (!NT_STATUS_IS_OK(result)) {
3028 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
3029 reply_nterror(req, result);
3030 END_PROFILE(SMBnttrans);
3031 return;
3032 }
3033
3034 if ((state = TALLOC_P(conn, struct trans_state)) == NULL) {
3035 reply_nterror(req, NT_STATUS_NO_MEMORY);
3036 END_PROFILE(SMBnttrans);
3037 return;
3038 }
3039
3040 state->cmd = SMBnttrans;
3041
3042 state->mid = req->mid;
3043 state->vuid = req->vuid;
3044 state->total_data = IVAL(req->vwv+3, 1);
3045 state->data = NULL;
3046 state->total_param = IVAL(req->vwv+1, 1);
3047 state->param = NULL;
3048 state->max_data_return = IVAL(req->vwv+7, 1);
3049 state->max_param_return = IVAL(req->vwv+5, 1);
3050
3051 /* setup count is in *words* */
3052 state->setup_count = 2*CVAL(req->vwv+17, 1);
3053 state->setup = NULL;
3054 state->call = function_code;
3055
3056 DEBUG(10, ("num_setup=%u, "
3057 "param_total=%u, this_param=%u, max_param=%u, "
3058 "data_total=%u, this_data=%u, max_data=%u, "
3059 "param_offset=%u, data_offset=%u\n",
3060 (unsigned)state->setup_count,
3061 (unsigned)state->total_param, (unsigned)pscnt,
3062 (unsigned)state->max_param_return,
3063 (unsigned)state->total_data, (unsigned)dscnt,
3064 (unsigned)state->max_data_return,
3065 (unsigned)psoff, (unsigned)dsoff));
3066
3067 /*
3068 * All nttrans messages we handle have smb_wct == 19 +
3069 * state->setup_count. Ensure this is so as a sanity check.
3070 */
3071
3072 if(req->wct != 19 + (state->setup_count/2)) {
3073 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
3074 req->wct, 19 + (state->setup_count/2)));
3075 goto bad_param;
3076 }
3077
3078 /* Don't allow more than 128mb for each value. */
3079 if ((state->total_data > (1024*1024*128)) ||
3080 (state->total_param > (1024*1024*128))) {
3081 reply_nterror(req, NT_STATUS_NO_MEMORY);
3082 END_PROFILE(SMBnttrans);
3083 return;
3084 }
3085
3086 if ((dscnt > state->total_data) || (pscnt > state->total_param))
3087 goto bad_param;
3088
3089 if (state->total_data) {
3090
3091 if (trans_oob(state->total_data, 0, dscnt)
3092 || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
3093 goto bad_param;
3094 }
3095
3096 /* Can't use talloc here, the core routines do realloc on the
3097 * params and data. */
3098 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
3099 DEBUG(0,("reply_nttrans: data malloc fail for %u "
3100 "bytes !\n", (unsigned int)state->total_data));
3101 TALLOC_FREE(state);
3102 reply_nterror(req, NT_STATUS_NO_MEMORY);
3103 END_PROFILE(SMBnttrans);
3104 return;
3105 }
3106
3107 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
3108 }
3109
3110 if (state->total_param) {
3111
3112 if (trans_oob(state->total_param, 0, pscnt)
3113 || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
3114 goto bad_param;
3115 }
3116
3117 /* Can't use talloc here, the core routines do realloc on the
3118 * params and data. */
3119 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
3120 DEBUG(0,("reply_nttrans: param malloc fail for %u "
3121 "bytes !\n", (unsigned int)state->total_param));
3122 SAFE_FREE(state->data);
3123 TALLOC_FREE(state);
3124 reply_nterror(req, NT_STATUS_NO_MEMORY);
3125 END_PROFILE(SMBnttrans);
3126 return;
3127 }
3128
3129 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
3130 }
3131
3132 state->received_data = dscnt;
3133 state->received_param = pscnt;
3134
3135 if(state->setup_count > 0) {
3136 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
3137 state->setup_count));
3138
3139 /*
3140 * No overflow possible here, state->setup_count is an
3141 * unsigned int, being filled by a single byte from
3142 * CVAL(req->vwv+13, 0) above. The cast in the comparison
3143 * below is not necessary, it's here to clarify things. The
3144 * validity of req->vwv and req->wct has been checked in
3145 * init_smb_request already.
3146 */
3147 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
3148 goto bad_param;
3149 }
3150
3151 state->setup = (uint16 *)TALLOC(state, state->setup_count);
3152 if (state->setup == NULL) {
3153 DEBUG(0,("reply_nttrans : Out of memory\n"));
3154 SAFE_FREE(state->data);
3155 SAFE_FREE(state->param);
3156 TALLOC_FREE(state);
3157 reply_nterror(req, NT_STATUS_NO_MEMORY);
3158 END_PROFILE(SMBnttrans);
3159 return;
3160 }
3161
3162 memcpy(state->setup, req->vwv+19, state->setup_count);
3163 dump_data(10, (uint8 *)state->setup, state->setup_count);
3164 }
3165
3166 if ((state->received_data == state->total_data) &&
3167 (state->received_param == state->total_param)) {
3168 handle_nttrans(conn, state, req);
3169 SAFE_FREE(state->param);
3170 SAFE_FREE(state->data);
3171 TALLOC_FREE(state);
3172 END_PROFILE(SMBnttrans);
3173 return;
3174 }
3175
3176 DLIST_ADD(conn->pending_trans, state);
3177
3178 /* We need to send an interim response then receive the rest
3179 of the parameter/data bytes */
3180 reply_outbuf(req, 0, 0);
3181 show_msg((char *)req->outbuf);
3182 END_PROFILE(SMBnttrans);
3183 return;
3184
3185 bad_param:
3186
3187 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
3188 SAFE_FREE(state->data);
3189 SAFE_FREE(state->param);
3190 TALLOC_FREE(state);
3191 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3192 END_PROFILE(SMBnttrans);
3193 return;
3194 }
3195
3196 /****************************************************************************
3197 Reply to a SMBnttranss
3198 ****************************************************************************/
3199
3200 void reply_nttranss(struct smb_request *req)
3201 {
3202 connection_struct *conn = req->conn;
3203 uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
3204 struct trans_state *state;
3205
3206 START_PROFILE(SMBnttranss);
3207
3208 show_msg((char *)req->inbuf);
3209
3210 if (req->wct < 18) {
3211 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3212 END_PROFILE(SMBnttranss);
3213 return;
3214 }
3215
3216 for (state = conn->pending_trans; state != NULL;
3217 state = state->next) {
3218 if (state->mid == req->mid) {
3219 break;
3220 }
3221 }
3222
3223 if ((state == NULL) || (state->cmd != SMBnttrans)) {
3224 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3225 END_PROFILE(SMBnttranss);
3226 return;
3227 }
3228
3229 /* Revise state->total_param and state->total_data in case they have
3230 changed downwards */
3231 if (IVAL(req->vwv+1, 1) < state->total_param) {
3232 state->total_param = IVAL(req->vwv+1, 1);
3233 }
3234 if (IVAL(req->vwv+3, 1) < state->total_data) {
3235 state->total_data = IVAL(req->vwv+3, 1);
3236 }
3237
3238 pcnt = IVAL(req->vwv+5, 1);
3239 poff = IVAL(req->vwv+7, 1);
3240 pdisp = IVAL(req->vwv+9, 1);
3241
3242 dcnt = IVAL(req->vwv+11, 1);
3243 doff = IVAL(req->vwv+13, 1);
3244 ddisp = IVAL(req->vwv+15, 1);
3245
3246 state->received_param += pcnt;
3247 state->received_data += dcnt;
3248
3249 if ((state->received_data > state->total_data) ||
3250 (state->received_param > state->total_param))
3251 goto bad_param;
3252
3253 if (pcnt) {
3254 if (trans_oob(state->total_param, pdisp, pcnt)
3255 || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
3256 goto bad_param;
3257 }
3258 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
3259 }
3260
3261 if (dcnt) {
3262 if (trans_oob(state->total_data, ddisp, dcnt)
3263 || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
3264 goto bad_param;
3265 }
3266 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
3267 }
3268
3269 if ((state->received_param < state->total_param) ||
3270 (state->received_data < state->total_data)) {
3271 END_PROFILE(SMBnttranss);
3272 return;
3273 }
3274
3275 handle_nttrans(conn, state, req);
3276
3277 DLIST_REMOVE(conn->pending_trans, state);
3278 SAFE_FREE(state->data);
3279 SAFE_FREE(state->param);
3280 TALLOC_FREE(state);
3281 END_PROFILE(SMBnttranss);
3282 return;
3283
3284 bad_param:
3285
3286 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
3287 DLIST_REMOVE(conn->pending_trans, state);
3288 SAFE_FREE(state->data);
3289 SAFE_FREE(state->param);
3290 TALLOC_FREE(state);
3291 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3292 END_PROFILE(SMBnttranss);
3293 return;
3294 }
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