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- Committer: Bazaar Package Importer
- Author(s): Marc Deslauriers
- Date: 2010-09-09 09:54:22 UTC
- mfrom: (102.1.1 lucid-proposed)
- Revision ID: james.westby@ubuntu.com-20100909095422-nnhnj357gczxepf6
Tags: 2:3.4.7~dfsg-1ubuntu3.2
* SECURITY UPDATE: denial of service and possible arbitrary code
execution via large number of SID sub authorities
- debian/patches/security-CVE-2010-3069.patch: limit number of SID
sub authorities in libcli/security/dom_sid.*, source3/lib/util_sid.c,
source3/libads/ldap.c, source3/libsmb/cliquota.c,
source3/smbd/nttrans.c.
- CVE-2010-3069
execution via large number of SID sub authorities
- debian/patches/security-CVE-2010-3069.patch: limit number of SID
sub authorities in libcli/security/dom_sid.*, source3/lib/util_sid.c,
source3/libads/ldap.c, source3/libsmb/cliquota.c,
source3/smbd/nttrans.c.
- CVE-2010-3069
- files added:
- .pc/security-CVE-2010-3069.patch
- .pc/security-CVE-2010-3069.patch/libcli
- .pc/security-CVE-2010-3069.patch/libcli/security
- .pc/security-CVE-2010-3069.patch/source3
- .pc/security-CVE-2010-3069.patch/source3/lib
- .pc/security-CVE-2010-3069.patch/source3/libads
- .pc/security-CVE-2010-3069.patch/source3/libsmb
- .pc/security-CVE-2010-3069.patch/source3/smbd
- files modified:
- .pc/applied-patches
added
removed
.pc/security-CVE-2010-3069.patch/source3/smbd/nttrans.c
1
/*
2
Unix SMB/CIFS implementation.
3
SMB NT transaction handling
4
Copyright (C) Jeremy Allison 1994-2007
5
Copyright (C) Stefan (metze) Metzmacher 2003
6
7
This program is free software; you can redistribute it and/or modify
8
it under the terms of the GNU General Public License as published by
9
the Free Software Foundation; either version 3 of the License, or
10
(at your option) any later version.
11
12
This program is distributed in the hope that it will be useful,
13
but WITHOUT ANY WARRANTY; without even the implied warranty of
14
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15
GNU General Public License for more details.
16
17
You should have received a copy of the GNU General Public License
18
along with this program. If not, see <http://www.gnu.org/licenses/>.
19
*/
20
21
#include "includes.h"
22
#include "smbd/globals.h"
23
24
extern enum protocol_types Protocol;
25
extern const struct generic_mapping file_generic_mapping;
26
27
static char *nttrans_realloc(char **ptr, size_t size)
28
{
29
if (ptr==NULL) {
30
smb_panic("nttrans_realloc() called with NULL ptr");
31
}
32
33
*ptr = (char *)SMB_REALLOC(*ptr, size);
34
if(*ptr == NULL) {
35
return NULL;
36
}
37
memset(*ptr,'\0',size);
38
return *ptr;
39
}
40
41
/****************************************************************************
42
Send the required number of replies back.
43
We assume all fields other than the data fields are
44
set correctly for the type of call.
45
HACK ! Always assumes smb_setup field is zero.
46
****************************************************************************/
47
48
void send_nt_replies(connection_struct *conn,
49
struct smb_request *req, NTSTATUS nt_error,
50
char *params, int paramsize,
51
char *pdata, int datasize)
52
{
53
int data_to_send = datasize;
54
int params_to_send = paramsize;
55
int useable_space;
56
char *pp = params;
57
char *pd = pdata;
58
int params_sent_thistime, data_sent_thistime, total_sent_thistime;
59
int alignment_offset = 3;
60
int data_alignment_offset = 0;
61
62
/*
63
* If there genuinely are no parameters or data to send just send
64
* the empty packet.
65
*/
66
67
if(params_to_send == 0 && data_to_send == 0) {
68
reply_outbuf(req, 18, 0);
69
show_msg((char *)req->outbuf);
70
return;
71
}
72
73
/*
74
* When sending params and data ensure that both are nicely aligned.
75
* Only do this alignment when there is also data to send - else
76
* can cause NT redirector problems.
77
*/
78
79
if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
80
data_alignment_offset = 4 - (params_to_send % 4);
81
}
82
83
/*
84
* Space is bufsize minus Netbios over TCP header minus SMB header.
85
* The alignment_offset is to align the param bytes on a four byte
86
* boundary (2 bytes for data len, one byte pad).
87
* NT needs this to work correctly.
88
*/
89
90
useable_space = max_send - (smb_size
91
+ 2 * 18 /* wct */
92
+ alignment_offset
93
+ data_alignment_offset);
94
95
if (useable_space < 0) {
96
char *msg = talloc_asprintf(
97
talloc_tos(),
98
"send_nt_replies failed sanity useable_space = %d!!!",
99
useable_space);
100
DEBUG(0, ("%s\n", msg));
101
exit_server_cleanly(msg);
102
}
103
104
while (params_to_send || data_to_send) {
105
106
/*
107
* Calculate whether we will totally or partially fill this packet.
108
*/
109
110
total_sent_thistime = params_to_send + data_to_send;
111
112
/*
113
* We can never send more than useable_space.
114
*/
115
116
total_sent_thistime = MIN(total_sent_thistime, useable_space);
117
118
reply_outbuf(req, 18,
119
total_sent_thistime + alignment_offset
120
+ data_alignment_offset);
121
122
/*
123
* We might have had SMBnttranss in req->inbuf, fix that.
124
*/
125
SCVAL(req->outbuf, smb_com, SMBnttrans);
126
127
/*
128
* Set total params and data to be sent.
129
*/
130
131
SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
132
SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
133
134
/*
135
* Calculate how many parameters and data we can fit into
136
* this packet. Parameters get precedence.
137
*/
138
139
params_sent_thistime = MIN(params_to_send,useable_space);
140
data_sent_thistime = useable_space - params_sent_thistime;
141
data_sent_thistime = MIN(data_sent_thistime,data_to_send);
142
143
SIVAL(req->outbuf, smb_ntr_ParameterCount,
144
params_sent_thistime);
145
146
if(params_sent_thistime == 0) {
147
SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
148
SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
149
} else {
150
/*
151
* smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
152
* parameter bytes, however the first 4 bytes of outbuf are
153
* the Netbios over TCP header. Thus use smb_base() to subtract
154
* them from the calculation.
155
*/
156
157
SIVAL(req->outbuf,smb_ntr_ParameterOffset,
158
((smb_buf(req->outbuf)+alignment_offset)
159
- smb_base(req->outbuf)));
160
/*
161
* Absolute displacement of param bytes sent in this packet.
162
*/
163
164
SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
165
pp - params);
166
}
167
168
/*
169
* Deal with the data portion.
170
*/
171
172
SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
173
174
if(data_sent_thistime == 0) {
175
SIVAL(req->outbuf,smb_ntr_DataOffset,0);
176
SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
177
} else {
178
/*
179
* The offset of the data bytes is the offset of the
180
* parameter bytes plus the number of parameters being sent this time.
181
*/
182
183
SIVAL(req->outbuf, smb_ntr_DataOffset,
184
((smb_buf(req->outbuf)+alignment_offset) -
185
smb_base(req->outbuf))
186
+ params_sent_thistime + data_alignment_offset);
187
SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
188
}
189
190
/*
191
* Copy the param bytes into the packet.
192
*/
193
194
if(params_sent_thistime) {
195
if (alignment_offset != 0) {
196
memset(smb_buf(req->outbuf), 0,
197
alignment_offset);
198
}
199
memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
200
params_sent_thistime);
201
}
202
203
/*
204
* Copy in the data bytes
205
*/
206
207
if(data_sent_thistime) {
208
if (data_alignment_offset != 0) {
209
memset((smb_buf(req->outbuf)+alignment_offset+
210
params_sent_thistime), 0,
211
data_alignment_offset);
212
}
213
memcpy(smb_buf(req->outbuf)+alignment_offset
214
+params_sent_thistime+data_alignment_offset,
215
pd,data_sent_thistime);
216
}
217
218
DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
219
params_sent_thistime, data_sent_thistime, useable_space));
220
DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
221
params_to_send, data_to_send, paramsize, datasize));
222
223
if (NT_STATUS_V(nt_error)) {
224
error_packet_set((char *)req->outbuf,
225
0, 0, nt_error,
226
__LINE__,__FILE__);
227
}
228
229
/* Send the packet */
230
show_msg((char *)req->outbuf);
231
if (!srv_send_smb(smbd_server_fd(),
232
(char *)req->outbuf,
233
IS_CONN_ENCRYPTED(conn),
234
&req->pcd)) {
235
exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
236
}
237
238
TALLOC_FREE(req->outbuf);
239
240
pp += params_sent_thistime;
241
pd += data_sent_thistime;
242
243
params_to_send -= params_sent_thistime;
244
data_to_send -= data_sent_thistime;
245
246
/*
247
* Sanity check
248
*/
249
250
if(params_to_send < 0 || data_to_send < 0) {
251
DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
252
params_to_send, data_to_send));
253
exit_server_cleanly("send_nt_replies: internal error");
254
}
255
}
256
}
257
258
/****************************************************************************
259
Is it an NTFS stream name ?
260
An NTFS file name is <path>.<extention>:<stream name>:<stream type>
261
$DATA can be used as both a stream name and a stream type. A missing stream
262
name or type implies $DATA.
263
264
Both Windows stream names and POSIX files can contain the ':' character.
265
This function first checks for the existence of a colon in the last component
266
of the given name. If the name contains a colon we differentiate between a
267
stream and POSIX file by checking if the latter exists through a POSIX stat.
268
269
Function assumes we've already chdir() to the "root" directory of fname.
270
****************************************************************************/
271
272
bool is_ntfs_stream_name(const char *fname)
273
{
274
const char *lastcomp;
275
SMB_STRUCT_STAT sbuf;
276
277
/* If all pathnames are treated as POSIX we ignore streams. */
278
if (lp_posix_pathnames()) {
279
return false;
280
}
281
282
/* Find the last component of the name. */
283
if ((lastcomp = strrchr_m(fname, '/')) != NULL)
284
++lastcomp;
285
else
286
lastcomp = fname;
287
288
/* If there is no colon in the last component, it's not a stream. */
289
if (strchr_m(lastcomp, ':') == NULL)
290
return false;
291
292
/*
293
* If file already exists on disk, it's not a stream. The stat must
294
* bypass the vfs layer so streams modules don't intefere.
295
*/
296
if (sys_stat(fname, &sbuf) == 0) {
297
DEBUG(5, ("is_ntfs_stream_name: file %s contains a ':' but is "
298
"not a stream\n", fname));
299
return false;
300
}
301
302
return true;
303
}
304
305
/****************************************************************************
306
Reply to an NT create and X call on a pipe
307
****************************************************************************/
308
309
static void nt_open_pipe(char *fname, connection_struct *conn,
310
struct smb_request *req, int *ppnum)
311
{
312
files_struct *fsp;
313
NTSTATUS status;
314
315
DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
316
317
/* Strip \\ off the name. */
318
fname++;
319
320
status = open_np_file(req, fname, &fsp);
321
if (!NT_STATUS_IS_OK(status)) {
322
if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
323
reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
324
ERRDOS, ERRbadpipe);
325
return;
326
}
327
reply_nterror(req, status);
328
return;
329
}
330
331
*ppnum = fsp->fnum;
332
return;
333
}
334
335
/****************************************************************************
336
Reply to an NT create and X call for pipes.
337
****************************************************************************/
338
339
static void do_ntcreate_pipe_open(connection_struct *conn,
340
struct smb_request *req)
341
{
342
char *fname = NULL;
343
int pnum = -1;
344
char *p = NULL;
345
uint32 flags = IVAL(req->vwv+3, 1);
346
TALLOC_CTX *ctx = talloc_tos();
347
348
srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
349
350
if (!fname) {
351
reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
352
ERRDOS, ERRbadpipe);
353
return;
354
}
355
nt_open_pipe(fname, conn, req, &pnum);
356
357
if (req->outbuf) {
358
/* error reply */
359
return;
360
}
361
362
/*
363
* Deal with pipe return.
364
*/
365
366
if (flags & EXTENDED_RESPONSE_REQUIRED) {
367
/* This is very strange. We
368
* return 50 words, but only set
369
* the wcnt to 42 ? It's definately
370
* what happens on the wire....
371
*/
372
reply_outbuf(req, 50, 0);
373
SCVAL(req->outbuf,smb_wct,42);
374
} else {
375
reply_outbuf(req, 34, 0);
376
}
377
378
p = (char *)req->outbuf + smb_vwv2;
379
p++;
380
SSVAL(p,0,pnum);
381
p += 2;
382
SIVAL(p,0,FILE_WAS_OPENED);
383
p += 4;
384
p += 32;
385
SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
386
p += 20;
387
/* File type. */
388
SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
389
/* Device state. */
390
SSVAL(p,2, 0x5FF); /* ? */
391
p += 4;
392
393
if (flags & EXTENDED_RESPONSE_REQUIRED) {
394
p += 25;
395
SIVAL(p,0,FILE_GENERIC_ALL);
396
/*
397
* For pipes W2K3 seems to return
398
* 0x12019B next.
399
* This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
400
*/
401
SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
402
}
403
404
DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
405
406
chain_reply(req);
407
}
408
409
/****************************************************************************
410
Reply to an NT create and X call.
411
****************************************************************************/
412
413
void reply_ntcreate_and_X(struct smb_request *req)
414
{
415
connection_struct *conn = req->conn;
416
char *fname = NULL;
417
uint32 flags;
418
uint32 access_mask;
419
uint32 file_attributes;
420
uint32 share_access;
421
uint32 create_disposition;
422
uint32 create_options;
423
uint16 root_dir_fid;
424
uint64_t allocation_size;
425
/* Breakout the oplock request bits so we can set the
426
reply bits separately. */
427
uint32 fattr=0;
428
SMB_OFF_T file_len = 0;
429
SMB_STRUCT_STAT sbuf;
430
int info = 0;
431
files_struct *fsp = NULL;
432
char *p = NULL;
433
struct timespec c_timespec;
434
struct timespec a_timespec;
435
struct timespec m_timespec;
436
NTSTATUS status;
437
int oplock_request;
438
uint8_t oplock_granted = NO_OPLOCK_RETURN;
439
struct case_semantics_state *case_state = NULL;
440
TALLOC_CTX *ctx = talloc_tos();
441
442
START_PROFILE(SMBntcreateX);
443
444
SET_STAT_INVALID(sbuf);
445
446
if (req->wct < 24) {
447
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
448
return;
449
}
450
451
flags = IVAL(req->vwv+3, 1);
452
access_mask = IVAL(req->vwv+7, 1);
453
file_attributes = IVAL(req->vwv+13, 1);
454
share_access = IVAL(req->vwv+15, 1);
455
create_disposition = IVAL(req->vwv+17, 1);
456
create_options = IVAL(req->vwv+19, 1);
457
root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
458
459
allocation_size = (uint64_t)IVAL(req->vwv+9, 1);
460
#ifdef LARGE_SMB_OFF_T
461
allocation_size |= (((uint64_t)IVAL(req->vwv+11, 1)) << 32);
462
#endif
463
464
srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
465
STR_TERMINATE, &status);
466
467
if (!NT_STATUS_IS_OK(status)) {
468
reply_nterror(req, status);
469
END_PROFILE(SMBntcreateX);
470
return;
471
}
472
473
DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
474
"file_attributes = 0x%x, share_access = 0x%x, "
475
"create_disposition = 0x%x create_options = 0x%x "
476
"root_dir_fid = 0x%x, fname = %s\n",
477
(unsigned int)flags,
478
(unsigned int)access_mask,
479
(unsigned int)file_attributes,
480
(unsigned int)share_access,
481
(unsigned int)create_disposition,
482
(unsigned int)create_options,
483
(unsigned int)root_dir_fid,
484
fname));
485
486
/*
487
* we need to remove ignored bits when they come directly from the client
488
* because we reuse some of them for internal stuff
489
*/
490
create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
491
492
/*
493
* If it's an IPC, use the pipe handler.
494
*/
495
496
if (IS_IPC(conn)) {
497
if (lp_nt_pipe_support()) {
498
do_ntcreate_pipe_open(conn, req);
499
END_PROFILE(SMBntcreateX);
500
return;
501
}
502
reply_doserror(req, ERRDOS, ERRnoaccess);
503
END_PROFILE(SMBntcreateX);
504
return;
505
}
506
507
oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
508
if (oplock_request) {
509
oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
510
? BATCH_OPLOCK : 0;
511
}
512
513
/*
514
* Check if POSIX semantics are wanted.
515
*/
516
517
if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
518
case_state = set_posix_case_semantics(ctx, conn);
519
if (!case_state) {
520
reply_nterror(req, NT_STATUS_NO_MEMORY);
521
END_PROFILE(SMBntcreateX);
522
return;
523
}
524
/*
525
* Bug #6898 - clients using Windows opens should
526
* never be able to set this attribute into the
527
* VFS.
528
*/
529
file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
530
}
531
532
status = SMB_VFS_CREATE_FILE(
533
conn, /* conn */
534
req, /* req */
535
root_dir_fid, /* root_dir_fid */
536
fname, /* fname */
537
CFF_DOS_PATH, /* create_file_flags */
538
access_mask, /* access_mask */
539
share_access, /* share_access */
540
create_disposition, /* create_disposition*/
541
create_options, /* create_options */
542
file_attributes, /* file_attributes */
543
oplock_request, /* oplock_request */
544
allocation_size, /* allocation_size */
545
NULL, /* sd */
546
NULL, /* ea_list */
547
&fsp, /* result */
548
&info, /* pinfo */
549
&sbuf); /* psbuf */
550
551
TALLOC_FREE(case_state);
552
553
if (!NT_STATUS_IS_OK(status)) {
554
if (open_was_deferred(req->mid)) {
555
/* We have re-scheduled this call, no error. */
556
END_PROFILE(SMBntcreateX);
557
return;
558
}
559
if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_COLLISION)) {
560
reply_botherror(req, status, ERRDOS, ERRfilexists);
561
}
562
else {
563
reply_nterror(req, status);
564
}
565
END_PROFILE(SMBntcreateX);
566
return;
567
}
568
569
/*
570
* If the caller set the extended oplock request bit
571
* and we granted one (by whatever means) - set the
572
* correct bit for extended oplock reply.
573
*/
574
575
if (oplock_request &&
576
(lp_fake_oplocks(SNUM(conn))
577
|| EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
578
579
/*
580
* Exclusive oplock granted
581
*/
582
583
if (flags & REQUEST_BATCH_OPLOCK) {
584
oplock_granted = BATCH_OPLOCK_RETURN;
585
} else {
586
oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
587
}
588
} else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
589
oplock_granted = LEVEL_II_OPLOCK_RETURN;
590
} else {
591
oplock_granted = NO_OPLOCK_RETURN;
592
}
593
594
file_len = sbuf.st_size;
595
fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
596
if (fattr == 0) {
597
fattr = FILE_ATTRIBUTE_NORMAL;
598
}
599
600
if (flags & EXTENDED_RESPONSE_REQUIRED) {
601
/* This is very strange. We
602
* return 50 words, but only set
603
* the wcnt to 42 ? It's definately
604
* what happens on the wire....
605
*/
606
reply_outbuf(req, 50, 0);
607
SCVAL(req->outbuf,smb_wct,42);
608
} else {
609
reply_outbuf(req, 34, 0);
610
}
611
612
p = (char *)req->outbuf + smb_vwv2;
613
614
SCVAL(p, 0, oplock_granted);
615
616
p++;
617
SSVAL(p,0,fsp->fnum);
618
p += 2;
619
if ((create_disposition == FILE_SUPERSEDE)
620
&& (info == FILE_WAS_OVERWRITTEN)) {
621
SIVAL(p,0,FILE_WAS_SUPERSEDED);
622
} else {
623
SIVAL(p,0,info);
624
}
625
p += 4;
626
627
/* Create time. */
628
c_timespec = get_create_timespec(
629
&sbuf,lp_fake_dir_create_times(SNUM(conn)));
630
a_timespec = get_atimespec(&sbuf);
631
m_timespec = get_mtimespec(&sbuf);
632
633
if (lp_dos_filetime_resolution(SNUM(conn))) {
634
dos_filetime_timespec(&c_timespec);
635
dos_filetime_timespec(&a_timespec);
636
dos_filetime_timespec(&m_timespec);
637
}
638
639
put_long_date_timespec(conn->ts_res, p, c_timespec); /* create time. */
640
p += 8;
641
put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
642
p += 8;
643
put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
644
p += 8;
645
put_long_date_timespec(conn->ts_res, p, m_timespec); /* change time */
646
p += 8;
647
SIVAL(p,0,fattr); /* File Attributes. */
648
p += 4;
649
SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&sbuf));
650
p += 8;
651
SOFF_T(p,0,file_len);
652
p += 8;
653
if (flags & EXTENDED_RESPONSE_REQUIRED) {
654
SSVAL(p,2,0x7);
655
}
656
p += 4;
657
SCVAL(p,0,fsp->is_directory ? 1 : 0);
658
659
if (flags & EXTENDED_RESPONSE_REQUIRED) {
660
uint32 perms = 0;
661
p += 25;
662
if (fsp->is_directory
663
|| can_write_to_file(conn, fsp->fsp_name, &sbuf)) {
664
perms = FILE_GENERIC_ALL;
665
} else {
666
perms = FILE_GENERIC_READ|FILE_EXECUTE;
667
}
668
SIVAL(p,0,perms);
669
}
670
671
DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n",
672
fsp->fnum, fsp->fsp_name));
673
674
chain_reply(req);
675
END_PROFILE(SMBntcreateX);
676
return;
677
}
678
679
/****************************************************************************
680
Reply to a NT_TRANSACT_CREATE call to open a pipe.
681
****************************************************************************/
682
683
static void do_nt_transact_create_pipe(connection_struct *conn,
684
struct smb_request *req,
685
uint16 **ppsetup, uint32 setup_count,
686
char **ppparams, uint32 parameter_count,
687
char **ppdata, uint32 data_count)
688
{
689
char *fname = NULL;
690
char *params = *ppparams;
691
int pnum = -1;
692
char *p = NULL;
693
NTSTATUS status;
694
size_t param_len;
695
uint32 flags;
696
TALLOC_CTX *ctx = talloc_tos();
697
698
/*
699
* Ensure minimum number of parameters sent.
700
*/
701
702
if(parameter_count < 54) {
703
DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
704
reply_doserror(req, ERRDOS, ERRnoaccess);
705
return;
706
}
707
708
flags = IVAL(params,0);
709
710
srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
711
parameter_count-53, STR_TERMINATE,
712
&status);
713
if (!NT_STATUS_IS_OK(status)) {
714
reply_nterror(req, status);
715
return;
716
}
717
718
nt_open_pipe(fname, conn, req, &pnum);
719
720
if (req->outbuf) {
721
/* Error return */
722
return;
723
}
724
725
/* Realloc the size of parameters and data we will return */
726
if (flags & EXTENDED_RESPONSE_REQUIRED) {
727
/* Extended response is 32 more byyes. */
728
param_len = 101;
729
} else {
730
param_len = 69;
731
}
732
params = nttrans_realloc(ppparams, param_len);
733
if(params == NULL) {
734
reply_doserror(req, ERRDOS, ERRnomem);
735
return;
736
}
737
738
p = params;
739
SCVAL(p,0,NO_OPLOCK_RETURN);
740
741
p += 2;
742
SSVAL(p,0,pnum);
743
p += 2;
744
SIVAL(p,0,FILE_WAS_OPENED);
745
p += 8;
746
747
p += 32;
748
SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
749
p += 20;
750
/* File type. */
751
SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
752
/* Device state. */
753
SSVAL(p,2, 0x5FF); /* ? */
754
p += 4;
755
756
if (flags & EXTENDED_RESPONSE_REQUIRED) {
757
p += 25;
758
SIVAL(p,0,FILE_GENERIC_ALL);
759
/*
760
* For pipes W2K3 seems to return
761
* 0x12019B next.
762
* This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
763
*/
764
SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
765
}
766
767
DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
768
769
/* Send the required number of replies */
770
send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
771
772
return;
773
}
774
775
/****************************************************************************
776
Internal fn to set security descriptors.
777
****************************************************************************/
778
779
static NTSTATUS set_sd(files_struct *fsp, uint8 *data, uint32 sd_len,
780
uint32 security_info_sent)
781
{
782
SEC_DESC *psd = NULL;
783
NTSTATUS status;
784
785
if (sd_len == 0 || !lp_nt_acl_support(SNUM(fsp->conn))) {
786
return NT_STATUS_OK;
787
}
788
789
status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
790
791
if (!NT_STATUS_IS_OK(status)) {
792
return status;
793
}
794
795
if (psd->owner_sid == NULL) {
796
security_info_sent &= ~OWNER_SECURITY_INFORMATION;
797
}
798
if (psd->group_sid == NULL) {
799
security_info_sent &= ~GROUP_SECURITY_INFORMATION;
800
}
801
802
/* Convert all the generic bits. */
803
security_acl_map_generic(psd->dacl, &file_generic_mapping);
804
security_acl_map_generic(psd->sacl, &file_generic_mapping);
805
806
if (DEBUGLEVEL >= 10) {
807
DEBUG(10,("set_sd for file %s\n", fsp->fsp_name ));
808
NDR_PRINT_DEBUG(security_descriptor, psd);
809
}
810
811
status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
812
813
TALLOC_FREE(psd);
814
815
return status;
816
}
817
818
/****************************************************************************
819
Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
820
****************************************************************************/
821
822
static struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
823
{
824
struct ea_list *ea_list_head = NULL;
825
size_t offset = 0;
826
827
if (data_size < 4) {
828
return NULL;
829
}
830
831
while (offset + 4 <= data_size) {
832
size_t next_offset = IVAL(pdata,offset);
833
struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
834
835
if (!eal) {
836
return NULL;
837
}
838
839
DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
840
if (next_offset == 0) {
841
break;
842
}
843
offset += next_offset;
844
}
845
846
return ea_list_head;
847
}
848
849
/****************************************************************************
850
Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
851
****************************************************************************/
852
853
static void call_nt_transact_create(connection_struct *conn,
854
struct smb_request *req,
855
uint16 **ppsetup, uint32 setup_count,
856
char **ppparams, uint32 parameter_count,
857
char **ppdata, uint32 data_count,
858
uint32 max_data_count)
859
{
860
char *fname = NULL;
861
char *params = *ppparams;
862
char *data = *ppdata;
863
/* Breakout the oplock request bits so we can set the reply bits separately. */
864
uint32 fattr=0;
865
SMB_OFF_T file_len = 0;
866
SMB_STRUCT_STAT sbuf;
867
int info = 0;
868
files_struct *fsp = NULL;
869
char *p = NULL;
870
uint32 flags;
871
uint32 access_mask;
872
uint32 file_attributes;
873
uint32 share_access;
874
uint32 create_disposition;
875
uint32 create_options;
876
uint32 sd_len;
877
struct security_descriptor *sd = NULL;
878
uint32 ea_len;
879
uint16 root_dir_fid;
880
struct timespec c_timespec;
881
struct timespec a_timespec;
882
struct timespec m_timespec;
883
struct ea_list *ea_list = NULL;
884
NTSTATUS status;
885
size_t param_len;
886
uint64_t allocation_size;
887
int oplock_request;
888
uint8_t oplock_granted;
889
struct case_semantics_state *case_state = NULL;
890
TALLOC_CTX *ctx = talloc_tos();
891
892
SET_STAT_INVALID(sbuf);
893
894
DEBUG(5,("call_nt_transact_create\n"));
895
896
/*
897
* If it's an IPC, use the pipe handler.
898
*/
899
900
if (IS_IPC(conn)) {
901
if (lp_nt_pipe_support()) {
902
do_nt_transact_create_pipe(
903
conn, req,
904
ppsetup, setup_count,
905
ppparams, parameter_count,
906
ppdata, data_count);
907
return;
908
}
909
reply_doserror(req, ERRDOS, ERRnoaccess);
910
return;
911
}
912
913
/*
914
* Ensure minimum number of parameters sent.
915
*/
916
917
if(parameter_count < 54) {
918
DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
919
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
920
return;
921
}
922
923
flags = IVAL(params,0);
924
access_mask = IVAL(params,8);
925
file_attributes = IVAL(params,20);
926
share_access = IVAL(params,24);
927
create_disposition = IVAL(params,28);
928
create_options = IVAL(params,32);
929
sd_len = IVAL(params,36);
930
ea_len = IVAL(params,40);
931
root_dir_fid = (uint16)IVAL(params,4);
932
allocation_size = (uint64_t)IVAL(params,12);
933
#ifdef LARGE_SMB_OFF_T
934
allocation_size |= (((uint64_t)IVAL(params,16)) << 32);
935
#endif
936
937
/*
938
* we need to remove ignored bits when they come directly from the client
939
* because we reuse some of them for internal stuff
940
*/
941
create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
942
943
/* Ensure the data_len is correct for the sd and ea values given. */
944
if ((ea_len + sd_len > data_count)
945
|| (ea_len > data_count) || (sd_len > data_count)
946
|| (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
947
DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
948
"%u, data_count = %u\n", (unsigned int)ea_len,
949
(unsigned int)sd_len, (unsigned int)data_count));
950
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
951
return;
952
}
953
954
if (sd_len) {
955
DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
956
sd_len));
957
958
status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
959
&sd);
960
if (!NT_STATUS_IS_OK(status)) {
961
DEBUG(10, ("call_nt_transact_create: "
962
"unmarshall_sec_desc failed: %s\n",
963
nt_errstr(status)));
964
reply_nterror(req, status);
965
return;
966
}
967
}
968
969
if (ea_len) {
970
if (!lp_ea_support(SNUM(conn))) {
971
DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
972
"EA's not supported.\n",
973
(unsigned int)ea_len));
974
reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
975
return;
976
}
977
978
if (ea_len < 10) {
979
DEBUG(10,("call_nt_transact_create - ea_len = %u - "
980
"too small (should be more than 10)\n",
981
(unsigned int)ea_len ));
982
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
983
return;
984
}
985
986
/* We have already checked that ea_len <= data_count here. */
987
ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
988
ea_len);
989
if (ea_list == NULL) {
990
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
991
return;
992
}
993
}
994
995
srvstr_get_path(ctx, params, req->flags2, &fname,
996
params+53, parameter_count-53,
997
STR_TERMINATE, &status);
998
if (!NT_STATUS_IS_OK(status)) {
999
reply_nterror(req, status);
1000
return;
1001
}
1002
1003
oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1004
if (oplock_request) {
1005
oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1006
? BATCH_OPLOCK : 0;
1007
}
1008
1009
/*
1010
* Check if POSIX semantics are wanted.
1011
*/
1012
1013
if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
1014
case_state = set_posix_case_semantics(ctx, conn);
1015
if (!case_state) {
1016
reply_nterror(req, NT_STATUS_NO_MEMORY);
1017
return;
1018
}
1019
/*
1020
* Bug #6898 - clients using Windows opens should
1021
* never be able to set this attribute into the
1022
* VFS.
1023
*/
1024
file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
1025
}
1026
1027
status = SMB_VFS_CREATE_FILE(
1028
conn, /* conn */
1029
req, /* req */
1030
root_dir_fid, /* root_dir_fid */
1031
fname, /* fname */
1032
CFF_DOS_PATH, /* create_file_flags */
1033
access_mask, /* access_mask */
1034
share_access, /* share_access */
1035
create_disposition, /* create_disposition*/
1036
create_options, /* create_options */
1037
file_attributes, /* file_attributes */
1038
oplock_request, /* oplock_request */
1039
allocation_size, /* allocation_size */
1040
sd, /* sd */
1041
ea_list, /* ea_list */
1042
&fsp, /* result */
1043
&info, /* pinfo */
1044
&sbuf); /* psbuf */
1045
1046
TALLOC_FREE(case_state);
1047
1048
if(!NT_STATUS_IS_OK(status)) {
1049
if (open_was_deferred(req->mid)) {
1050
/* We have re-scheduled this call, no error. */
1051
return;
1052
}
1053
reply_openerror(req, status);
1054
return;
1055
}
1056
1057
/*
1058
* If the caller set the extended oplock request bit
1059
* and we granted one (by whatever means) - set the
1060
* correct bit for extended oplock reply.
1061
*/
1062
1063
if (oplock_request &&
1064
(lp_fake_oplocks(SNUM(conn))
1065
|| EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1066
1067
/*
1068
* Exclusive oplock granted
1069
*/
1070
1071
if (flags & REQUEST_BATCH_OPLOCK) {
1072
oplock_granted = BATCH_OPLOCK_RETURN;
1073
} else {
1074
oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1075
}
1076
} else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1077
oplock_granted = LEVEL_II_OPLOCK_RETURN;
1078
} else {
1079
oplock_granted = NO_OPLOCK_RETURN;
1080
}
1081
1082
file_len = sbuf.st_size;
1083
fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
1084
if (fattr == 0) {
1085
fattr = FILE_ATTRIBUTE_NORMAL;
1086
}
1087
1088
/* Realloc the size of parameters and data we will return */
1089
if (flags & EXTENDED_RESPONSE_REQUIRED) {
1090
/* Extended response is 32 more byyes. */
1091
param_len = 101;
1092
} else {
1093
param_len = 69;
1094
}
1095
params = nttrans_realloc(ppparams, param_len);
1096
if(params == NULL) {
1097
reply_doserror(req, ERRDOS, ERRnomem);
1098
return;
1099
}
1100
1101
p = params;
1102
SCVAL(p, 0, oplock_granted);
1103
1104
p += 2;
1105
SSVAL(p,0,fsp->fnum);
1106
p += 2;
1107
if ((create_disposition == FILE_SUPERSEDE)
1108
&& (info == FILE_WAS_OVERWRITTEN)) {
1109
SIVAL(p,0,FILE_WAS_SUPERSEDED);
1110
} else {
1111
SIVAL(p,0,info);
1112
}
1113
p += 8;
1114
1115
/* Create time. */
1116
c_timespec = get_create_timespec(
1117
&sbuf,lp_fake_dir_create_times(SNUM(conn)));
1118
a_timespec = get_atimespec(&sbuf);
1119
m_timespec = get_mtimespec(&sbuf);
1120
1121
if (lp_dos_filetime_resolution(SNUM(conn))) {
1122
dos_filetime_timespec(&c_timespec);
1123
dos_filetime_timespec(&a_timespec);
1124
dos_filetime_timespec(&m_timespec);
1125
}
1126
1127
put_long_date_timespec(conn->ts_res, p, c_timespec); /* create time. */
1128
p += 8;
1129
put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
1130
p += 8;
1131
put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
1132
p += 8;
1133
put_long_date_timespec(conn->ts_res, p, m_timespec); /* change time */
1134
p += 8;
1135
SIVAL(p,0,fattr); /* File Attributes. */
1136
p += 4;
1137
SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&sbuf));
1138
p += 8;
1139
SOFF_T(p,0,file_len);
1140
p += 8;
1141
if (flags & EXTENDED_RESPONSE_REQUIRED) {
1142
SSVAL(p,2,0x7);
1143
}
1144
p += 4;
1145
SCVAL(p,0,fsp->is_directory ? 1 : 0);
1146
1147
if (flags & EXTENDED_RESPONSE_REQUIRED) {
1148
uint32 perms = 0;
1149
p += 25;
1150
if (fsp->is_directory
1151
|| can_write_to_file(conn, fsp->fsp_name, &sbuf)) {
1152
perms = FILE_GENERIC_ALL;
1153
} else {
1154
perms = FILE_GENERIC_READ|FILE_EXECUTE;
1155
}
1156
SIVAL(p,0,perms);
1157
}
1158
1159
DEBUG(5,("call_nt_transact_create: open name = %s\n", fsp->fsp_name));
1160
1161
/* Send the required number of replies */
1162
send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1163
1164
return;
1165
}
1166
1167
/****************************************************************************
1168
Reply to a NT CANCEL request.
1169
conn POINTER CAN BE NULL HERE !
1170
****************************************************************************/
1171
1172
void reply_ntcancel(struct smb_request *req)
1173
{
1174
/*
1175
* Go through and cancel any pending change notifies.
1176
*/
1177
1178
START_PROFILE(SMBntcancel);
1179
remove_pending_change_notify_requests_by_mid(req->mid);
1180
remove_pending_lock_requests_by_mid(req->mid);
1181
srv_cancel_sign_response(req->mid, true);
1182
1183
DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", req->mid));
1184
1185
END_PROFILE(SMBntcancel);
1186
return;
1187
}
1188
1189
/****************************************************************************
1190
Copy a file.
1191
****************************************************************************/
1192
1193
static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1194
connection_struct *conn,
1195
struct smb_request *req,
1196
const char *oldname_in,
1197
const char *newname_in,
1198
uint32 attrs)
1199
{
1200
SMB_STRUCT_STAT sbuf1, sbuf2;
1201
char *oldname = NULL;
1202
char *newname = NULL;
1203
char *last_component_oldname = NULL;
1204
char *last_component_newname = NULL;
1205
files_struct *fsp1,*fsp2;
1206
uint32 fattr;
1207
int info;
1208
SMB_OFF_T ret=-1;
1209
NTSTATUS status = NT_STATUS_OK;
1210
char *parent;
1211
1212
ZERO_STRUCT(sbuf1);
1213
ZERO_STRUCT(sbuf2);
1214
1215
if (!CAN_WRITE(conn)) {
1216
return NT_STATUS_MEDIA_WRITE_PROTECTED;
1217
}
1218
1219
status = unix_convert(ctx, conn, oldname_in, False, &oldname,
1220
&last_component_oldname, &sbuf1);
1221
if (!NT_STATUS_IS_OK(status)) {
1222
return status;
1223
}
1224
1225
status = check_name(conn, oldname);
1226
if (!NT_STATUS_IS_OK(status)) {
1227
return status;
1228
}
1229
1230
/* Source must already exist. */
1231
if (!VALID_STAT(sbuf1)) {
1232
return NT_STATUS_OBJECT_NAME_NOT_FOUND;
1233
}
1234
/* Ensure attributes match. */
1235
fattr = dos_mode(conn,oldname,&sbuf1);
1236
if ((fattr & ~attrs) & (aHIDDEN | aSYSTEM)) {
1237
return NT_STATUS_NO_SUCH_FILE;
1238
}
1239
1240
status = unix_convert(ctx, conn, newname_in, False, &newname,
1241
&last_component_newname, &sbuf2);
1242
if (!NT_STATUS_IS_OK(status)) {
1243
return status;
1244
}
1245
1246
status = check_name(conn, newname);
1247
if (!NT_STATUS_IS_OK(status)) {
1248
return status;
1249
}
1250
1251
/* Disallow if newname already exists. */
1252
if (VALID_STAT(sbuf2)) {
1253
return NT_STATUS_OBJECT_NAME_COLLISION;
1254
}
1255
1256
/* No links from a directory. */
1257
if (S_ISDIR(sbuf1.st_mode)) {
1258
return NT_STATUS_FILE_IS_A_DIRECTORY;
1259
}
1260
1261
/* Ensure this is within the share. */
1262
status = check_reduced_name(conn, oldname);
1263
if (!NT_STATUS_IS_OK(status)) {
1264
return status;
1265
}
1266
1267
DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1268
oldname, newname));
1269
1270
status = SMB_VFS_CREATE_FILE(
1271
conn, /* conn */
1272
req, /* req */
1273
0, /* root_dir_fid */
1274
oldname, /* fname */
1275
0, /* create_file_flags */
1276
FILE_READ_DATA, /* access_mask */
1277
(FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1278
FILE_SHARE_DELETE),
1279
FILE_OPEN, /* create_disposition*/
1280
0, /* create_options */
1281
FILE_ATTRIBUTE_NORMAL, /* file_attributes */
1282
NO_OPLOCK, /* oplock_request */
1283
0, /* allocation_size */
1284
NULL, /* sd */
1285
NULL, /* ea_list */
1286
&fsp1, /* result */
1287
&info, /* pinfo */
1288
&sbuf1); /* psbuf */
1289
1290
if (!NT_STATUS_IS_OK(status)) {
1291
return status;
1292
}
1293
1294
status = SMB_VFS_CREATE_FILE(
1295
conn, /* conn */
1296
req, /* req */
1297
0, /* root_dir_fid */
1298
newname, /* fname */
1299
0, /* create_file_flags */
1300
FILE_WRITE_DATA, /* access_mask */
1301
(FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1302
FILE_SHARE_DELETE),
1303
FILE_CREATE, /* create_disposition*/
1304
0, /* create_options */
1305
fattr, /* file_attributes */
1306
NO_OPLOCK, /* oplock_request */
1307
0, /* allocation_size */
1308
NULL, /* sd */
1309
NULL, /* ea_list */
1310
&fsp2, /* result */
1311
&info, /* pinfo */
1312
&sbuf2); /* psbuf */
1313
1314
if (!NT_STATUS_IS_OK(status)) {
1315
close_file(NULL, fsp1, ERROR_CLOSE);
1316
return status;
1317
}
1318
1319
if (sbuf1.st_size) {
1320
ret = vfs_transfer_file(fsp1, fsp2, sbuf1.st_size);
1321
}
1322
1323
/*
1324
* As we are opening fsp1 read-only we only expect
1325
* an error on close on fsp2 if we are out of space.
1326
* Thus we don't look at the error return from the
1327
* close of fsp1.
1328
*/
1329
close_file(NULL, fsp1, NORMAL_CLOSE);
1330
1331
/* Ensure the modtime is set correctly on the destination file. */
1332
set_close_write_time(fsp2, get_mtimespec(&sbuf1));
1333
1334
status = close_file(NULL, fsp2, NORMAL_CLOSE);
1335
1336
/* Grrr. We have to do this as open_file_ntcreate adds aARCH when it
1337
creates the file. This isn't the correct thing to do in the copy
1338
case. JRA */
1339
if (!parent_dirname(talloc_tos(), newname, &parent, NULL)) {
1340
return NT_STATUS_NO_MEMORY;
1341
}
1342
file_set_dosmode(conn, newname, fattr, &sbuf2, parent, false);
1343
TALLOC_FREE(parent);
1344
1345
if (ret < (SMB_OFF_T)sbuf1.st_size) {
1346
return NT_STATUS_DISK_FULL;
1347
}
1348
1349
if (!NT_STATUS_IS_OK(status)) {
1350
DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1351
nt_errstr(status), oldname, newname));
1352
}
1353
return status;
1354
}
1355
1356
/****************************************************************************
1357
Reply to a NT rename request.
1358
****************************************************************************/
1359
1360
void reply_ntrename(struct smb_request *req)
1361
{
1362
connection_struct *conn = req->conn;
1363
char *oldname = NULL;
1364
char *newname = NULL;
1365
const char *p;
1366
NTSTATUS status;
1367
bool src_has_wcard = False;
1368
bool dest_has_wcard = False;
1369
uint32 attrs;
1370
uint16 rename_type;
1371
TALLOC_CTX *ctx = talloc_tos();
1372
1373
START_PROFILE(SMBntrename);
1374
1375
if (req->wct < 4) {
1376
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1377
END_PROFILE(SMBntrename);
1378
return;
1379
}
1380
1381
attrs = SVAL(req->vwv+0, 0);
1382
rename_type = SVAL(req->vwv+1, 0);
1383
1384
p = (const char *)req->buf + 1;
1385
p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1386
&status, &src_has_wcard);
1387
if (!NT_STATUS_IS_OK(status)) {
1388
reply_nterror(req, status);
1389
END_PROFILE(SMBntrename);
1390
return;
1391
}
1392
1393
if (ms_has_wild(oldname)) {
1394
reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1395
END_PROFILE(SMBntrename);
1396
return;
1397
}
1398
1399
p++;
1400
p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1401
&status, &dest_has_wcard);
1402
if (!NT_STATUS_IS_OK(status)) {
1403
reply_nterror(req, status);
1404
END_PROFILE(SMBntrename);
1405
return;
1406
}
1407
1408
status = resolve_dfspath(ctx, conn,
1409
req->flags2 & FLAGS2_DFS_PATHNAMES,
1410
oldname,
1411
&oldname);
1412
if (!NT_STATUS_IS_OK(status)) {
1413
if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1414
reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1415
ERRSRV, ERRbadpath);
1416
END_PROFILE(SMBntrename);
1417
return;
1418
}
1419
reply_nterror(req, status);
1420
END_PROFILE(SMBntrename);
1421
return;
1422
}
1423
1424
status = resolve_dfspath(ctx, conn,
1425
req->flags2 & FLAGS2_DFS_PATHNAMES,
1426
newname,
1427
&newname);
1428
if (!NT_STATUS_IS_OK(status)) {
1429
if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1430
reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1431
ERRSRV, ERRbadpath);
1432
END_PROFILE(SMBntrename);
1433
return;
1434
}
1435
reply_nterror(req, status);
1436
END_PROFILE(SMBntrename);
1437
return;
1438
}
1439
1440
/* The new name must begin with a ':' if the old name is a stream. */
1441
if (is_ntfs_stream_name(oldname) && (newname[0] != ':')) {
1442
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1443
END_PROFILE(SMBntrename);
1444
return;
1445
}
1446
1447
DEBUG(3,("reply_ntrename : %s -> %s\n",oldname,newname));
1448
1449
switch(rename_type) {
1450
case RENAME_FLAG_RENAME:
1451
status = rename_internals(ctx, conn, req, oldname,
1452
newname, attrs, False, src_has_wcard,
1453
dest_has_wcard, DELETE_ACCESS);
1454
break;
1455
case RENAME_FLAG_HARD_LINK:
1456
if (src_has_wcard || dest_has_wcard) {
1457
/* No wildcards. */
1458
status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1459
} else {
1460
status = hardlink_internals(ctx,
1461
conn,
1462
oldname,
1463
newname);
1464
}
1465
break;
1466
case RENAME_FLAG_COPY:
1467
if (src_has_wcard || dest_has_wcard) {
1468
/* No wildcards. */
1469
status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1470
} else {
1471
status = copy_internals(ctx, conn, req, oldname,
1472
newname, attrs);
1473
}
1474
break;
1475
case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1476
status = NT_STATUS_INVALID_PARAMETER;
1477
break;
1478
default:
1479
status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1480
break;
1481
}
1482
1483
if (!NT_STATUS_IS_OK(status)) {
1484
if (open_was_deferred(req->mid)) {
1485
/* We have re-scheduled this call. */
1486
END_PROFILE(SMBntrename);
1487
return;
1488
}
1489
1490
reply_nterror(req, status);
1491
END_PROFILE(SMBntrename);
1492
return;
1493
}
1494
1495
reply_outbuf(req, 0, 0);
1496
1497
END_PROFILE(SMBntrename);
1498
return;
1499
}
1500
1501
/****************************************************************************
1502
Reply to a notify change - queue the request and
1503
don't allow a directory to be opened.
1504
****************************************************************************/
1505
1506
static void call_nt_transact_notify_change(connection_struct *conn,
1507
struct smb_request *req,
1508
uint16 **ppsetup,
1509
uint32 setup_count,
1510
char **ppparams,
1511
uint32 parameter_count,
1512
char **ppdata, uint32 data_count,
1513
uint32 max_data_count,
1514
uint32 max_param_count)
1515
{
1516
uint16 *setup = *ppsetup;
1517
files_struct *fsp;
1518
uint32 filter;
1519
NTSTATUS status;
1520
bool recursive;
1521
1522
if(setup_count < 6) {
1523
reply_doserror(req, ERRDOS, ERRbadfunc);
1524
return;
1525
}
1526
1527
fsp = file_fsp(req, SVAL(setup,4));
1528
filter = IVAL(setup, 0);
1529
recursive = (SVAL(setup, 6) != 0) ? True : False;
1530
1531
DEBUG(3,("call_nt_transact_notify_change\n"));
1532
1533
if(!fsp) {
1534
reply_doserror(req, ERRDOS, ERRbadfid);
1535
return;
1536
}
1537
1538
{
1539
char *filter_string;
1540
1541
if (!(filter_string = notify_filter_string(NULL, filter))) {
1542
reply_nterror(req,NT_STATUS_NO_MEMORY);
1543
return;
1544
}
1545
1546
DEBUG(3,("call_nt_transact_notify_change: notify change "
1547
"called on %s, filter = %s, recursive = %d\n",
1548
fsp->fsp_name, filter_string, recursive));
1549
1550
TALLOC_FREE(filter_string);
1551
}
1552
1553
if((!fsp->is_directory) || (conn != fsp->conn)) {
1554
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1555
return;
1556
}
1557
1558
if (fsp->notify == NULL) {
1559
1560
status = change_notify_create(fsp, filter, recursive);
1561
1562
if (!NT_STATUS_IS_OK(status)) {
1563
DEBUG(10, ("change_notify_create returned %s\n",
1564
nt_errstr(status)));
1565
reply_nterror(req, status);
1566
return;
1567
}
1568
}
1569
1570
if (fsp->notify->num_changes != 0) {
1571
1572
/*
1573
* We've got changes pending, respond immediately
1574
*/
1575
1576
/*
1577
* TODO: write a torture test to check the filtering behaviour
1578
* here.
1579
*/
1580
1581
change_notify_reply(fsp->conn, req, max_param_count,
1582
fsp->notify);
1583
1584
/*
1585
* change_notify_reply() above has independently sent its
1586
* results
1587
*/
1588
return;
1589
}
1590
1591
/*
1592
* No changes pending, queue the request
1593
*/
1594
1595
status = change_notify_add_request(req,
1596
max_param_count,
1597
filter,
1598
recursive, fsp);
1599
if (!NT_STATUS_IS_OK(status)) {
1600
reply_nterror(req, status);
1601
}
1602
return;
1603
}
1604
1605
/****************************************************************************
1606
Reply to an NT transact rename command.
1607
****************************************************************************/
1608
1609
static void call_nt_transact_rename(connection_struct *conn,
1610
struct smb_request *req,
1611
uint16 **ppsetup, uint32 setup_count,
1612
char **ppparams, uint32 parameter_count,
1613
char **ppdata, uint32 data_count,
1614
uint32 max_data_count)
1615
{
1616
char *params = *ppparams;
1617
char *new_name = NULL;
1618
files_struct *fsp = NULL;
1619
bool dest_has_wcard = False;
1620
NTSTATUS status;
1621
TALLOC_CTX *ctx = talloc_tos();
1622
1623
if(parameter_count < 5) {
1624
reply_doserror(req, ERRDOS, ERRbadfunc);
1625
return;
1626
}
1627
1628
fsp = file_fsp(req, SVAL(params, 0));
1629
if (!check_fsp(conn, req, fsp)) {
1630
return;
1631
}
1632
srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1633
parameter_count - 4,
1634
STR_TERMINATE, &status, &dest_has_wcard);
1635
if (!NT_STATUS_IS_OK(status)) {
1636
reply_nterror(req, status);
1637
return;
1638
}
1639
1640
/*
1641
* W2K3 ignores this request as the RAW-RENAME test
1642
* demonstrates, so we do.
1643
*/
1644
send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1645
1646
DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1647
fsp->fsp_name, new_name));
1648
1649
return;
1650
}
1651
1652
/******************************************************************************
1653
Fake up a completely empty SD.
1654
*******************************************************************************/
1655
1656
static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
1657
{
1658
size_t sd_size;
1659
1660
*ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1661
if(!*ppsd) {
1662
DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1663
return NT_STATUS_NO_MEMORY;
1664
}
1665
1666
return NT_STATUS_OK;
1667
}
1668
1669
/****************************************************************************
1670
Reply to query a security descriptor.
1671
****************************************************************************/
1672
1673
static void call_nt_transact_query_security_desc(connection_struct *conn,
1674
struct smb_request *req,
1675
uint16 **ppsetup,
1676
uint32 setup_count,
1677
char **ppparams,
1678
uint32 parameter_count,
1679
char **ppdata,
1680
uint32 data_count,
1681
uint32 max_data_count)
1682
{
1683
char *params = *ppparams;
1684
char *data = *ppdata;
1685
SEC_DESC *psd = NULL;
1686
size_t sd_size;
1687
uint32 security_info_wanted;
1688
files_struct *fsp = NULL;
1689
NTSTATUS status;
1690
DATA_BLOB blob;
1691
1692
if(parameter_count < 8) {
1693
reply_doserror(req, ERRDOS, ERRbadfunc);
1694
return;
1695
}
1696
1697
fsp = file_fsp(req, SVAL(params,0));
1698
if(!fsp) {
1699
reply_doserror(req, ERRDOS, ERRbadfid);
1700
return;
1701
}
1702
1703
security_info_wanted = IVAL(params,4);
1704
1705
DEBUG(3,("call_nt_transact_query_security_desc: file = %s, info_wanted = 0x%x\n", fsp->fsp_name,
1706
(unsigned int)security_info_wanted ));
1707
1708
params = nttrans_realloc(ppparams, 4);
1709
if(params == NULL) {
1710
reply_doserror(req, ERRDOS, ERRnomem);
1711
return;
1712
}
1713
1714
/*
1715
* Get the permissions to return.
1716
*/
1717
1718
if (!lp_nt_acl_support(SNUM(conn))) {
1719
status = get_null_nt_acl(talloc_tos(), &psd);
1720
} else {
1721
status = SMB_VFS_FGET_NT_ACL(
1722
fsp, security_info_wanted, &psd);
1723
}
1724
if (!NT_STATUS_IS_OK(status)) {
1725
reply_nterror(req, status);
1726
return;
1727
}
1728
1729
/* If the SACL/DACL is NULL, but was requested, we mark that it is
1730
* present in the reply to match Windows behavior */
1731
if (psd->sacl == NULL &&
1732
security_info_wanted & SACL_SECURITY_INFORMATION)
1733
psd->type |= SEC_DESC_SACL_PRESENT;
1734
if (psd->dacl == NULL &&
1735
security_info_wanted & DACL_SECURITY_INFORMATION)
1736
psd->type |= SEC_DESC_DACL_PRESENT;
1737
1738
sd_size = ndr_size_security_descriptor(psd, NULL, 0);
1739
1740
DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %lu.\n",(unsigned long)sd_size));
1741
1742
if (DEBUGLEVEL >= 10) {
1743
DEBUG(10,("call_nt_transact_query_security_desc for file %s\n", fsp->fsp_name));
1744
NDR_PRINT_DEBUG(security_descriptor, psd);
1745
}
1746
1747
SIVAL(params,0,(uint32)sd_size);
1748
1749
if (max_data_count < sd_size) {
1750
send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
1751
params, 4, *ppdata, 0);
1752
return;
1753
}
1754
1755
/*
1756
* Allocate the data we will point this at.
1757
*/
1758
1759
data = nttrans_realloc(ppdata, sd_size);
1760
if(data == NULL) {
1761
reply_doserror(req, ERRDOS, ERRnomem);
1762
return;
1763
}
1764
1765
status = marshall_sec_desc(talloc_tos(), psd,
1766
&blob.data, &blob.length);
1767
1768
if (!NT_STATUS_IS_OK(status)) {
1769
reply_nterror(req, status);
1770
return;
1771
}
1772
1773
SMB_ASSERT(sd_size == blob.length);
1774
memcpy(data, blob.data, sd_size);
1775
1776
send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
1777
1778
return;
1779
}
1780
1781
/****************************************************************************
1782
Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
1783
****************************************************************************/
1784
1785
static void call_nt_transact_set_security_desc(connection_struct *conn,
1786
struct smb_request *req,
1787
uint16 **ppsetup,
1788
uint32 setup_count,
1789
char **ppparams,
1790
uint32 parameter_count,
1791
char **ppdata,
1792
uint32 data_count,
1793
uint32 max_data_count)
1794
{
1795
char *params= *ppparams;
1796
char *data = *ppdata;
1797
files_struct *fsp = NULL;
1798
uint32 security_info_sent = 0;
1799
NTSTATUS status;
1800
1801
if(parameter_count < 8) {
1802
reply_doserror(req, ERRDOS, ERRbadfunc);
1803
return;
1804
}
1805
1806
if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
1807
reply_doserror(req, ERRDOS, ERRbadfid);
1808
return;
1809
}
1810
1811
if(!lp_nt_acl_support(SNUM(conn))) {
1812
goto done;
1813
}
1814
1815
security_info_sent = IVAL(params,4);
1816
1817
DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n", fsp->fsp_name,
1818
(unsigned int)security_info_sent ));
1819
1820
if (data_count == 0) {
1821
reply_doserror(req, ERRDOS, ERRnoaccess);
1822
return;
1823
}
1824
1825
status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
1826
1827
if (!NT_STATUS_IS_OK(status)) {
1828
reply_nterror(req, status);
1829
return;
1830
}
1831
1832
done:
1833
send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1834
return;
1835
}
1836
1837
/****************************************************************************
1838
Reply to NT IOCTL
1839
****************************************************************************/
1840
1841
static void call_nt_transact_ioctl(connection_struct *conn,
1842
struct smb_request *req,
1843
uint16 **ppsetup, uint32 setup_count,
1844
char **ppparams, uint32 parameter_count,
1845
char **ppdata, uint32 data_count,
1846
uint32 max_data_count)
1847
{
1848
uint32 function;
1849
uint16 fidnum;
1850
files_struct *fsp;
1851
uint8 isFSctl;
1852
uint8 compfilter;
1853
char *pdata = *ppdata;
1854
1855
if (setup_count != 8) {
1856
DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
1857
reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1858
return;
1859
}
1860
1861
function = IVAL(*ppsetup, 0);
1862
fidnum = SVAL(*ppsetup, 4);
1863
isFSctl = CVAL(*ppsetup, 6);
1864
compfilter = CVAL(*ppsetup, 7);
1865
1866
DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
1867
function, fidnum, isFSctl, compfilter));
1868
1869
fsp=file_fsp(req, fidnum);
1870
/* this check is done in each implemented function case for now
1871
because I don't want to break anything... --metze
1872
FSP_BELONGS_CONN(fsp,conn);*/
1873
1874
SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
1875
1876
switch (function) {
1877
case FSCTL_SET_SPARSE:
1878
/* pretend this succeeded - tho strictly we should
1879
mark the file sparse (if the local fs supports it)
1880
so we can know if we need to pre-allocate or not */
1881
1882
DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum));
1883
send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1884
return;
1885
1886
case FSCTL_CREATE_OR_GET_OBJECT_ID:
1887
{
1888
unsigned char objid[16];
1889
1890
/* This should return the object-id on this file.
1891
* I think I'll make this be the inode+dev. JRA.
1892
*/
1893
1894
DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
1895
1896
if (!fsp_belongs_conn(conn, req, fsp)) {
1897
return;
1898
}
1899
1900
data_count = 64;
1901
pdata = nttrans_realloc(ppdata, data_count);
1902
if (pdata == NULL) {
1903
reply_nterror(req, NT_STATUS_NO_MEMORY);
1904
return;
1905
}
1906
1907
/* For backwards compatibility only store the dev/inode. */
1908
push_file_id_16(pdata, &fsp->file_id);
1909
memcpy(pdata+16,create_volume_objectid(conn,objid),16);
1910
push_file_id_16(pdata+32, &fsp->file_id);
1911
send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
1912
pdata, data_count);
1913
return;
1914
}
1915
1916
case FSCTL_GET_REPARSE_POINT:
1917
/* pretend this fail - my winXP does it like this
1918
* --metze
1919
*/
1920
1921
DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1922
reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1923
return;
1924
1925
case FSCTL_SET_REPARSE_POINT:
1926
/* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
1927
* --metze
1928
*/
1929
1930
DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
1931
reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
1932
return;
1933
1934
case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
1935
{
1936
/*
1937
* This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
1938
* and return their volume names. If max_data_count is 16, then it is just
1939
* asking for the number of volumes and length of the combined names.
1940
*
1941
* pdata is the data allocated by our caller, but that uses
1942
* total_data_count (which is 0 in our case) rather than max_data_count.
1943
* Allocate the correct amount and return the pointer to let
1944
* it be deallocated when we return.
1945
*/
1946
SHADOW_COPY_DATA *shadow_data = NULL;
1947
TALLOC_CTX *shadow_mem_ctx = NULL;
1948
bool labels = False;
1949
uint32 labels_data_count = 0;
1950
uint32 i;
1951
char *cur_pdata;
1952
1953
if (!fsp_belongs_conn(conn, req, fsp)) {
1954
return;
1955
}
1956
1957
if (max_data_count < 16) {
1958
DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
1959
max_data_count));
1960
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1961
return;
1962
}
1963
1964
if (max_data_count > 16) {
1965
labels = True;
1966
}
1967
1968
shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
1969
if (shadow_mem_ctx == NULL) {
1970
DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
1971
reply_nterror(req, NT_STATUS_NO_MEMORY);
1972
return;
1973
}
1974
1975
shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
1976
if (shadow_data == NULL) {
1977
DEBUG(0,("TALLOC_ZERO() failed!\n"));
1978
talloc_destroy(shadow_mem_ctx);
1979
reply_nterror(req, NT_STATUS_NO_MEMORY);
1980
return;
1981
}
1982
1983
shadow_data->mem_ctx = shadow_mem_ctx;
1984
1985
/*
1986
* Call the VFS routine to actually do the work.
1987
*/
1988
if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
1989
talloc_destroy(shadow_data->mem_ctx);
1990
if (errno == ENOSYS) {
1991
DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
1992
conn->connectpath));
1993
reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
1994
return;
1995
} else {
1996
DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
1997
conn->connectpath));
1998
reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
1999
return;
2000
}
2001
}
2002
2003
labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
2004
2005
if (!labels) {
2006
data_count = 16;
2007
} else {
2008
data_count = 12+labels_data_count+4;
2009
}
2010
2011
if (max_data_count<data_count) {
2012
DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
2013
max_data_count,data_count));
2014
talloc_destroy(shadow_data->mem_ctx);
2015
reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
2016
return;
2017
}
2018
2019
pdata = nttrans_realloc(ppdata, data_count);
2020
if (pdata == NULL) {
2021
talloc_destroy(shadow_data->mem_ctx);
2022
reply_nterror(req, NT_STATUS_NO_MEMORY);
2023
return;
2024
}
2025
2026
cur_pdata = pdata;
2027
2028
/* num_volumes 4 bytes */
2029
SIVAL(pdata,0,shadow_data->num_volumes);
2030
2031
if (labels) {
2032
/* num_labels 4 bytes */
2033
SIVAL(pdata,4,shadow_data->num_volumes);
2034
}
2035
2036
/* needed_data_count 4 bytes */
2037
SIVAL(pdata, 8, labels_data_count+4);
2038
2039
cur_pdata+=12;
2040
2041
DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
2042
shadow_data->num_volumes,fsp->fsp_name));
2043
if (labels && shadow_data->labels) {
2044
for (i=0;i<shadow_data->num_volumes;i++) {
2045
srvstr_push(pdata, req->flags2,
2046
cur_pdata, shadow_data->labels[i],
2047
2*sizeof(SHADOW_COPY_LABEL),
2048
STR_UNICODE|STR_TERMINATE);
2049
cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
2050
DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
2051
}
2052
}
2053
2054
talloc_destroy(shadow_data->mem_ctx);
2055
2056
send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
2057
pdata, data_count);
2058
2059
return;
2060
}
2061
2062
case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
2063
{
2064
/* pretend this succeeded -
2065
*
2066
* we have to send back a list with all files owned by this SID
2067
*
2068
* but I have to check that --metze
2069
*/
2070
DOM_SID sid;
2071
uid_t uid;
2072
size_t sid_len = MIN(data_count-4,SID_MAX_SIZE);
2073
2074
DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
2075
2076
if (!fsp_belongs_conn(conn, req, fsp)) {
2077
return;
2078
}
2079
2080
/* unknown 4 bytes: this is not the length of the sid :-( */
2081
/*unknown = IVAL(pdata,0);*/
2082
2083
sid_parse(pdata+4,sid_len,&sid);
2084
DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
2085
2086
if (!sid_to_uid(&sid, &uid)) {
2087
DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
2088
sid_string_dbg(&sid),
2089
(unsigned long)sid_len));
2090
uid = (-1);
2091
}
2092
2093
/* we can take a look at the find source :-)
2094
*
2095
* find ./ -uid $uid -name '*' is what we need here
2096
*
2097
*
2098
* and send 4bytes len and then NULL terminated unicode strings
2099
* for each file
2100
*
2101
* but I don't know how to deal with the paged results
2102
* (maybe we can hang the result anywhere in the fsp struct)
2103
*
2104
* we don't send all files at once
2105
* and at the next we should *not* start from the beginning,
2106
* so we have to cache the result
2107
*
2108
* --metze
2109
*/
2110
2111
/* this works for now... */
2112
send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2113
return;
2114
}
2115
default:
2116
if (!logged_ioctl_message) {
2117
logged_ioctl_message = true; /* Only print this once... */
2118
DEBUG(0,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n",
2119
function));
2120
}
2121
}
2122
2123
reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2124
}
2125
2126
2127
#ifdef HAVE_SYS_QUOTAS
2128
/****************************************************************************
2129
Reply to get user quota
2130
****************************************************************************/
2131
2132
static void call_nt_transact_get_user_quota(connection_struct *conn,
2133
struct smb_request *req,
2134
uint16 **ppsetup,
2135
uint32 setup_count,
2136
char **ppparams,
2137
uint32 parameter_count,
2138
char **ppdata,
2139
uint32 data_count,
2140
uint32 max_data_count)
2141
{
2142
NTSTATUS nt_status = NT_STATUS_OK;
2143
char *params = *ppparams;
2144
char *pdata = *ppdata;
2145
char *entry;
2146
int data_len=0,param_len=0;
2147
int qt_len=0;
2148
int entry_len = 0;
2149
files_struct *fsp = NULL;
2150
uint16 level = 0;
2151
size_t sid_len;
2152
DOM_SID sid;
2153
bool start_enum = True;
2154
SMB_NTQUOTA_STRUCT qt;
2155
SMB_NTQUOTA_LIST *tmp_list;
2156
SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2157
2158
ZERO_STRUCT(qt);
2159
2160
/* access check */
2161
if (conn->server_info->utok.uid != 0) {
2162
DEBUG(1,("get_user_quota: access_denied service [%s] user "
2163
"[%s]\n", lp_servicename(SNUM(conn)),
2164
conn->server_info->unix_name));
2165
reply_doserror(req, ERRDOS, ERRnoaccess);
2166
return;
2167
}
2168
2169
/*
2170
* Ensure minimum number of parameters sent.
2171
*/
2172
2173
if (parameter_count < 4) {
2174
DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2175
reply_doserror(req, ERRDOS, ERRinvalidparam);
2176
return;
2177
}
2178
2179
/* maybe we can check the quota_fnum */
2180
fsp = file_fsp(req, SVAL(params,0));
2181
if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2182
DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2183
reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2184
return;
2185
}
2186
2187
/* the NULL pointer checking for fsp->fake_file_handle->pd
2188
* is done by CHECK_NTQUOTA_HANDLE_OK()
2189
*/
2190
qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2191
2192
level = SVAL(params,2);
2193
2194
/* unknown 12 bytes leading in params */
2195
2196
switch (level) {
2197
case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2198
/* seems that we should continue with the enum here --metze */
2199
2200
if (qt_handle->quota_list!=NULL &&
2201
qt_handle->tmp_list==NULL) {
2202
2203
/* free the list */
2204
free_ntquota_list(&(qt_handle->quota_list));
2205
2206
/* Realloc the size of parameters and data we will return */
2207
param_len = 4;
2208
params = nttrans_realloc(ppparams, param_len);
2209
if(params == NULL) {
2210
reply_doserror(req, ERRDOS, ERRnomem);
2211
return;
2212
}
2213
2214
data_len = 0;
2215
SIVAL(params,0,data_len);
2216
2217
break;
2218
}
2219
2220
start_enum = False;
2221
2222
case TRANSACT_GET_USER_QUOTA_LIST_START:
2223
2224
if (qt_handle->quota_list==NULL &&
2225
qt_handle->tmp_list==NULL) {
2226
start_enum = True;
2227
}
2228
2229
if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2230
reply_doserror(req, ERRSRV, ERRerror);
2231
return;
2232
}
2233
2234
/* Realloc the size of parameters and data we will return */
2235
param_len = 4;
2236
params = nttrans_realloc(ppparams, param_len);
2237
if(params == NULL) {
2238
reply_doserror(req, ERRDOS, ERRnomem);
2239
return;
2240
}
2241
2242
/* we should not trust the value in max_data_count*/
2243
max_data_count = MIN(max_data_count,2048);
2244
2245
pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2246
if(pdata == NULL) {
2247
reply_doserror(req, ERRDOS, ERRnomem);
2248
return;
2249
}
2250
2251
entry = pdata;
2252
2253
/* set params Size of returned Quota Data 4 bytes*/
2254
/* but set it later when we know it */
2255
2256
/* for each entry push the data */
2257
2258
if (start_enum) {
2259
qt_handle->tmp_list = qt_handle->quota_list;
2260
}
2261
2262
tmp_list = qt_handle->tmp_list;
2263
2264
for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2265
tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2266
2267
sid_len = ndr_size_dom_sid(
2268
&tmp_list->quotas->sid, NULL, 0);
2269
entry_len = 40 + sid_len;
2270
2271
/* nextoffset entry 4 bytes */
2272
SIVAL(entry,0,entry_len);
2273
2274
/* then the len of the SID 4 bytes */
2275
SIVAL(entry,4,sid_len);
2276
2277
/* unknown data 8 bytes uint64_t */
2278
SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2279
2280
/* the used disk space 8 bytes uint64_t */
2281
SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2282
2283
/* the soft quotas 8 bytes uint64_t */
2284
SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2285
2286
/* the hard quotas 8 bytes uint64_t */
2287
SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2288
2289
/* and now the SID */
2290
sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2291
}
2292
2293
qt_handle->tmp_list = tmp_list;
2294
2295
/* overwrite the offset of the last entry */
2296
SIVAL(entry-entry_len,0,0);
2297
2298
data_len = 4+qt_len;
2299
/* overwrite the params quota_data_len */
2300
SIVAL(params,0,data_len);
2301
2302
break;
2303
2304
case TRANSACT_GET_USER_QUOTA_FOR_SID:
2305
2306
/* unknown 4 bytes IVAL(pdata,0) */
2307
2308
if (data_count < 8) {
2309
DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2310
reply_doserror(req, ERRDOS, ERRunknownlevel);
2311
return;
2312
}
2313
2314
sid_len = IVAL(pdata,4);
2315
/* Ensure this is less than 1mb. */
2316
if (sid_len > (1024*1024)) {
2317
reply_doserror(req, ERRDOS, ERRnomem);
2318
return;
2319
}
2320
2321
if (data_count < 8+sid_len) {
2322
DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2323
reply_doserror(req, ERRDOS, ERRunknownlevel);
2324
return;
2325
}
2326
2327
data_len = 4+40+sid_len;
2328
2329
if (max_data_count < data_len) {
2330
DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2331
max_data_count, data_len));
2332
param_len = 4;
2333
SIVAL(params,0,data_len);
2334
data_len = 0;
2335
nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2336
break;
2337
}
2338
2339
sid_parse(pdata+8,sid_len,&sid);
2340
2341
if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2342
ZERO_STRUCT(qt);
2343
/*
2344
* we have to return zero's in all fields
2345
* instead of returning an error here
2346
* --metze
2347
*/
2348
}
2349
2350
/* Realloc the size of parameters and data we will return */
2351
param_len = 4;
2352
params = nttrans_realloc(ppparams, param_len);
2353
if(params == NULL) {
2354
reply_doserror(req, ERRDOS, ERRnomem);
2355
return;
2356
}
2357
2358
pdata = nttrans_realloc(ppdata, data_len);
2359
if(pdata == NULL) {
2360
reply_doserror(req, ERRDOS, ERRnomem);
2361
return;
2362
}
2363
2364
entry = pdata;
2365
2366
/* set params Size of returned Quota Data 4 bytes*/
2367
SIVAL(params,0,data_len);
2368
2369
/* nextoffset entry 4 bytes */
2370
SIVAL(entry,0,0);
2371
2372
/* then the len of the SID 4 bytes */
2373
SIVAL(entry,4,sid_len);
2374
2375
/* unknown data 8 bytes uint64_t */
2376
SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2377
2378
/* the used disk space 8 bytes uint64_t */
2379
SBIG_UINT(entry,16,qt.usedspace);
2380
2381
/* the soft quotas 8 bytes uint64_t */
2382
SBIG_UINT(entry,24,qt.softlim);
2383
2384
/* the hard quotas 8 bytes uint64_t */
2385
SBIG_UINT(entry,32,qt.hardlim);
2386
2387
/* and now the SID */
2388
sid_linearize(entry+40, sid_len, &sid);
2389
2390
break;
2391
2392
default:
2393
DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
2394
reply_doserror(req, ERRSRV, ERRerror);
2395
return;
2396
break;
2397
}
2398
2399
send_nt_replies(conn, req, nt_status, params, param_len,
2400
pdata, data_len);
2401
}
2402
2403
/****************************************************************************
2404
Reply to set user quota
2405
****************************************************************************/
2406
2407
static void call_nt_transact_set_user_quota(connection_struct *conn,
2408
struct smb_request *req,
2409
uint16 **ppsetup,
2410
uint32 setup_count,
2411
char **ppparams,
2412
uint32 parameter_count,
2413
char **ppdata,
2414
uint32 data_count,
2415
uint32 max_data_count)
2416
{
2417
char *params = *ppparams;
2418
char *pdata = *ppdata;
2419
int data_len=0,param_len=0;
2420
SMB_NTQUOTA_STRUCT qt;
2421
size_t sid_len;
2422
DOM_SID sid;
2423
files_struct *fsp = NULL;
2424
2425
ZERO_STRUCT(qt);
2426
2427
/* access check */
2428
if (conn->server_info->utok.uid != 0) {
2429
DEBUG(1,("set_user_quota: access_denied service [%s] user "
2430
"[%s]\n", lp_servicename(SNUM(conn)),
2431
conn->server_info->unix_name));
2432
reply_doserror(req, ERRDOS, ERRnoaccess);
2433
return;
2434
}
2435
2436
/*
2437
* Ensure minimum number of parameters sent.
2438
*/
2439
2440
if (parameter_count < 2) {
2441
DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2442
reply_doserror(req, ERRDOS, ERRinvalidparam);
2443
return;
2444
}
2445
2446
/* maybe we can check the quota_fnum */
2447
fsp = file_fsp(req, SVAL(params,0));
2448
if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2449
DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2450
reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2451
return;
2452
}
2453
2454
if (data_count < 40) {
2455
DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2456
reply_doserror(req, ERRDOS, ERRunknownlevel);
2457
return;
2458
}
2459
2460
/* offset to next quota record.
2461
* 4 bytes IVAL(pdata,0)
2462
* unused here...
2463
*/
2464
2465
/* sid len */
2466
sid_len = IVAL(pdata,4);
2467
2468
if (data_count < 40+sid_len) {
2469
DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2470
reply_doserror(req, ERRDOS, ERRunknownlevel);
2471
return;
2472
}
2473
2474
/* unknown 8 bytes in pdata
2475
* maybe its the change time in NTTIME
2476
*/
2477
2478
/* the used space 8 bytes (uint64_t)*/
2479
qt.usedspace = (uint64_t)IVAL(pdata,16);
2480
#ifdef LARGE_SMB_OFF_T
2481
qt.usedspace |= (((uint64_t)IVAL(pdata,20)) << 32);
2482
#else /* LARGE_SMB_OFF_T */
2483
if ((IVAL(pdata,20) != 0)&&
2484
((qt.usedspace != 0xFFFFFFFF)||
2485
(IVAL(pdata,20)!=0xFFFFFFFF))) {
2486
/* more than 32 bits? */
2487
reply_doserror(req, ERRDOS, ERRunknownlevel);
2488
return;
2489
}
2490
#endif /* LARGE_SMB_OFF_T */
2491
2492
/* the soft quotas 8 bytes (uint64_t)*/
2493
qt.softlim = (uint64_t)IVAL(pdata,24);
2494
#ifdef LARGE_SMB_OFF_T
2495
qt.softlim |= (((uint64_t)IVAL(pdata,28)) << 32);
2496
#else /* LARGE_SMB_OFF_T */
2497
if ((IVAL(pdata,28) != 0)&&
2498
((qt.softlim != 0xFFFFFFFF)||
2499
(IVAL(pdata,28)!=0xFFFFFFFF))) {
2500
/* more than 32 bits? */
2501
reply_doserror(req, ERRDOS, ERRunknownlevel);
2502
return;
2503
}
2504
#endif /* LARGE_SMB_OFF_T */
2505
2506
/* the hard quotas 8 bytes (uint64_t)*/
2507
qt.hardlim = (uint64_t)IVAL(pdata,32);
2508
#ifdef LARGE_SMB_OFF_T
2509
qt.hardlim |= (((uint64_t)IVAL(pdata,36)) << 32);
2510
#else /* LARGE_SMB_OFF_T */
2511
if ((IVAL(pdata,36) != 0)&&
2512
((qt.hardlim != 0xFFFFFFFF)||
2513
(IVAL(pdata,36)!=0xFFFFFFFF))) {
2514
/* more than 32 bits? */
2515
reply_doserror(req, ERRDOS, ERRunknownlevel);
2516
return;
2517
}
2518
#endif /* LARGE_SMB_OFF_T */
2519
2520
sid_parse(pdata+40,sid_len,&sid);
2521
DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2522
2523
/* 44 unknown bytes left... */
2524
2525
if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2526
reply_doserror(req, ERRSRV, ERRerror);
2527
return;
2528
}
2529
2530
send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2531
pdata, data_len);
2532
}
2533
#endif /* HAVE_SYS_QUOTAS */
2534
2535
static void handle_nttrans(connection_struct *conn,
2536
struct trans_state *state,
2537
struct smb_request *req)
2538
{
2539
if (Protocol >= PROTOCOL_NT1) {
2540
req->flags2 |= 0x40; /* IS_LONG_NAME */
2541
SSVAL(req->inbuf,smb_flg2,req->flags2);
2542
}
2543
2544
2545
SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2546
2547
/* Now we must call the relevant NT_TRANS function */
2548
switch(state->call) {
2549
case NT_TRANSACT_CREATE:
2550
{
2551
START_PROFILE(NT_transact_create);
2552
call_nt_transact_create(
2553
conn, req,
2554
&state->setup, state->setup_count,
2555
&state->param, state->total_param,
2556
&state->data, state->total_data,
2557
state->max_data_return);
2558
END_PROFILE(NT_transact_create);
2559
break;
2560
}
2561
2562
case NT_TRANSACT_IOCTL:
2563
{
2564
START_PROFILE(NT_transact_ioctl);
2565
call_nt_transact_ioctl(
2566
conn, req,
2567
&state->setup, state->setup_count,
2568
&state->param, state->total_param,
2569
&state->data, state->total_data,
2570
state->max_data_return);
2571
END_PROFILE(NT_transact_ioctl);
2572
break;
2573
}
2574
2575
case NT_TRANSACT_SET_SECURITY_DESC:
2576
{
2577
START_PROFILE(NT_transact_set_security_desc);
2578
call_nt_transact_set_security_desc(
2579
conn, req,
2580
&state->setup, state->setup_count,
2581
&state->param, state->total_param,
2582
&state->data, state->total_data,
2583
state->max_data_return);
2584
END_PROFILE(NT_transact_set_security_desc);
2585
break;
2586
}
2587
2588
case NT_TRANSACT_NOTIFY_CHANGE:
2589
{
2590
START_PROFILE(NT_transact_notify_change);
2591
call_nt_transact_notify_change(
2592
conn, req,
2593
&state->setup, state->setup_count,
2594
&state->param, state->total_param,
2595
&state->data, state->total_data,
2596
state->max_data_return,
2597
state->max_param_return);
2598
END_PROFILE(NT_transact_notify_change);
2599
break;
2600
}
2601
2602
case NT_TRANSACT_RENAME:
2603
{
2604
START_PROFILE(NT_transact_rename);
2605
call_nt_transact_rename(
2606
conn, req,
2607
&state->setup, state->setup_count,
2608
&state->param, state->total_param,
2609
&state->data, state->total_data,
2610
state->max_data_return);
2611
END_PROFILE(NT_transact_rename);
2612
break;
2613
}
2614
2615
case NT_TRANSACT_QUERY_SECURITY_DESC:
2616
{
2617
START_PROFILE(NT_transact_query_security_desc);
2618
call_nt_transact_query_security_desc(
2619
conn, req,
2620
&state->setup, state->setup_count,
2621
&state->param, state->total_param,
2622
&state->data, state->total_data,
2623
state->max_data_return);
2624
END_PROFILE(NT_transact_query_security_desc);
2625
break;
2626
}
2627
2628
#ifdef HAVE_SYS_QUOTAS
2629
case NT_TRANSACT_GET_USER_QUOTA:
2630
{
2631
START_PROFILE(NT_transact_get_user_quota);
2632
call_nt_transact_get_user_quota(
2633
conn, req,
2634
&state->setup, state->setup_count,
2635
&state->param, state->total_param,
2636
&state->data, state->total_data,
2637
state->max_data_return);
2638
END_PROFILE(NT_transact_get_user_quota);
2639
break;
2640
}
2641
2642
case NT_TRANSACT_SET_USER_QUOTA:
2643
{
2644
START_PROFILE(NT_transact_set_user_quota);
2645
call_nt_transact_set_user_quota(
2646
conn, req,
2647
&state->setup, state->setup_count,
2648
&state->param, state->total_param,
2649
&state->data, state->total_data,
2650
state->max_data_return);
2651
END_PROFILE(NT_transact_set_user_quota);
2652
break;
2653
}
2654
#endif /* HAVE_SYS_QUOTAS */
2655
2656
default:
2657
/* Error in request */
2658
DEBUG(0,("handle_nttrans: Unknown request %d in "
2659
"nttrans call\n", state->call));
2660
reply_doserror(req, ERRSRV, ERRerror);
2661
return;
2662
}
2663
return;
2664
}
2665
2666
/****************************************************************************
2667
Reply to a SMBNTtrans.
2668
****************************************************************************/
2669
2670
void reply_nttrans(struct smb_request *req)
2671
{
2672
connection_struct *conn = req->conn;
2673
uint32_t pscnt;
2674
uint32_t psoff;
2675
uint32_t dscnt;
2676
uint32_t dsoff;
2677
uint16 function_code;
2678
NTSTATUS result;
2679
struct trans_state *state;
2680
2681
START_PROFILE(SMBnttrans);
2682
2683
if (req->wct < 19) {
2684
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2685
END_PROFILE(SMBnttrans);
2686
return;
2687
}
2688
2689
pscnt = IVAL(req->vwv+9, 1);
2690
psoff = IVAL(req->vwv+11, 1);
2691
dscnt = IVAL(req->vwv+13, 1);
2692
dsoff = IVAL(req->vwv+15, 1);
2693
function_code = SVAL(req->vwv+18, 0);
2694
2695
if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2696
reply_doserror(req, ERRSRV, ERRaccess);
2697
END_PROFILE(SMBnttrans);
2698
return;
2699
}
2700
2701
result = allow_new_trans(conn->pending_trans, req->mid);
2702
if (!NT_STATUS_IS_OK(result)) {
2703
DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2704
reply_nterror(req, result);
2705
END_PROFILE(SMBnttrans);
2706
return;
2707
}
2708
2709
if ((state = TALLOC_P(conn, struct trans_state)) == NULL) {
2710
reply_doserror(req, ERRSRV, ERRaccess);
2711
END_PROFILE(SMBnttrans);
2712
return;
2713
}
2714
2715
state->cmd = SMBnttrans;
2716
2717
state->mid = req->mid;
2718
state->vuid = req->vuid;
2719
state->total_data = IVAL(req->vwv+3, 1);
2720
state->data = NULL;
2721
state->total_param = IVAL(req->vwv+1, 1);
2722
state->param = NULL;
2723
state->max_data_return = IVAL(req->vwv+7, 1);
2724
state->max_param_return = IVAL(req->vwv+5, 1);
2725
2726
/* setup count is in *words* */
2727
state->setup_count = 2*CVAL(req->vwv+17, 1);
2728
state->setup = NULL;
2729
state->call = function_code;
2730
2731
DEBUG(10, ("num_setup=%u, "
2732
"param_total=%u, this_param=%u, max_param=%u, "
2733
"data_total=%u, this_data=%u, max_data=%u, "
2734
"param_offset=%u, data_offset=%u\n",
2735
(unsigned)state->setup_count,
2736
(unsigned)state->total_param, (unsigned)pscnt,
2737
(unsigned)state->max_param_return,
2738
(unsigned)state->total_data, (unsigned)dscnt,
2739
(unsigned)state->max_data_return,
2740
(unsigned)psoff, (unsigned)dsoff));
2741
2742
/*
2743
* All nttrans messages we handle have smb_wct == 19 +
2744
* state->setup_count. Ensure this is so as a sanity check.
2745
*/
2746
2747
if(req->wct != 19 + (state->setup_count/2)) {
2748
DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2749
req->wct, 19 + (state->setup_count/2)));
2750
goto bad_param;
2751
}
2752
2753
/* Don't allow more than 128mb for each value. */
2754
if ((state->total_data > (1024*1024*128)) ||
2755
(state->total_param > (1024*1024*128))) {
2756
reply_doserror(req, ERRDOS, ERRnomem);
2757
END_PROFILE(SMBnttrans);
2758
return;
2759
}
2760
2761
if ((dscnt > state->total_data) || (pscnt > state->total_param))
2762
goto bad_param;
2763
2764
if (state->total_data) {
2765
2766
if (trans_oob(state->total_data, 0, dscnt)
2767
|| trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
2768
goto bad_param;
2769
}
2770
2771
/* Can't use talloc here, the core routines do realloc on the
2772
* params and data. */
2773
if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2774
DEBUG(0,("reply_nttrans: data malloc fail for %u "
2775
"bytes !\n", (unsigned int)state->total_data));
2776
TALLOC_FREE(state);
2777
reply_doserror(req, ERRDOS, ERRnomem);
2778
END_PROFILE(SMBnttrans);
2779
return;
2780
}
2781
2782
memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2783
}
2784
2785
if (state->total_param) {
2786
2787
if (trans_oob(state->total_param, 0, pscnt)
2788
|| trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
2789
goto bad_param;
2790
}
2791
2792
/* Can't use talloc here, the core routines do realloc on the
2793
* params and data. */
2794
if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2795
DEBUG(0,("reply_nttrans: param malloc fail for %u "
2796
"bytes !\n", (unsigned int)state->total_param));
2797
SAFE_FREE(state->data);
2798
TALLOC_FREE(state);
2799
reply_doserror(req, ERRDOS, ERRnomem);
2800
END_PROFILE(SMBnttrans);
2801
return;
2802
}
2803
2804
memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2805
}
2806
2807
state->received_data = dscnt;
2808
state->received_param = pscnt;
2809
2810
if(state->setup_count > 0) {
2811
DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2812
state->setup_count));
2813
2814
/*
2815
* No overflow possible here, state->setup_count is an
2816
* unsigned int, being filled by a single byte from
2817
* CVAL(req->vwv+13, 0) above. The cast in the comparison
2818
* below is not necessary, it's here to clarify things. The
2819
* validity of req->vwv and req->wct has been checked in
2820
* init_smb_request already.
2821
*/
2822
if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
2823
goto bad_param;
2824
}
2825
2826
state->setup = (uint16 *)TALLOC(state, state->setup_count);
2827
if (state->setup == NULL) {
2828
DEBUG(0,("reply_nttrans : Out of memory\n"));
2829
SAFE_FREE(state->data);
2830
SAFE_FREE(state->param);
2831
TALLOC_FREE(state);
2832
reply_doserror(req, ERRDOS, ERRnomem);
2833
END_PROFILE(SMBnttrans);
2834
return;
2835
}
2836
2837
memcpy(state->setup, req->vwv+19, state->setup_count);
2838
dump_data(10, (uint8 *)state->setup, state->setup_count);
2839
}
2840
2841
if ((state->received_data == state->total_data) &&
2842
(state->received_param == state->total_param)) {
2843
handle_nttrans(conn, state, req);
2844
SAFE_FREE(state->param);
2845
SAFE_FREE(state->data);
2846
TALLOC_FREE(state);
2847
END_PROFILE(SMBnttrans);
2848
return;
2849
}
2850
2851
DLIST_ADD(conn->pending_trans, state);
2852
2853
/* We need to send an interim response then receive the rest
2854
of the parameter/data bytes */
2855
reply_outbuf(req, 0, 0);
2856
show_msg((char *)req->outbuf);
2857
END_PROFILE(SMBnttrans);
2858
return;
2859
2860
bad_param:
2861
2862
DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2863
SAFE_FREE(state->data);
2864
SAFE_FREE(state->param);
2865
TALLOC_FREE(state);
2866
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2867
END_PROFILE(SMBnttrans);
2868
return;
2869
}
2870
2871
/****************************************************************************
2872
Reply to a SMBnttranss
2873
****************************************************************************/
2874
2875
void reply_nttranss(struct smb_request *req)
2876
{
2877
connection_struct *conn = req->conn;
2878
uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
2879
struct trans_state *state;
2880
2881
START_PROFILE(SMBnttranss);
2882
2883
show_msg((char *)req->inbuf);
2884
2885
if (req->wct < 18) {
2886
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2887
END_PROFILE(SMBnttranss);
2888
return;
2889
}
2890
2891
for (state = conn->pending_trans; state != NULL;
2892
state = state->next) {
2893
if (state->mid == req->mid) {
2894
break;
2895
}
2896
}
2897
2898
if ((state == NULL) || (state->cmd != SMBnttrans)) {
2899
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2900
END_PROFILE(SMBnttranss);
2901
return;
2902
}
2903
2904
/* Revise state->total_param and state->total_data in case they have
2905
changed downwards */
2906
if (IVAL(req->vwv+1, 1) < state->total_param) {
2907
state->total_param = IVAL(req->vwv+1, 1);
2908
}
2909
if (IVAL(req->vwv+3, 1) < state->total_data) {
2910
state->total_data = IVAL(req->vwv+3, 1);
2911
}
2912
2913
pcnt = IVAL(req->vwv+5, 1);
2914
poff = IVAL(req->vwv+7, 1);
2915
pdisp = IVAL(req->vwv+9, 1);
2916
2917
dcnt = IVAL(req->vwv+11, 1);
2918
doff = IVAL(req->vwv+13, 1);
2919
ddisp = IVAL(req->vwv+15, 1);
2920
2921
state->received_param += pcnt;
2922
state->received_data += dcnt;
2923
2924
if ((state->received_data > state->total_data) ||
2925
(state->received_param > state->total_param))
2926
goto bad_param;
2927
2928
if (pcnt) {
2929
if (trans_oob(state->total_param, pdisp, pcnt)
2930
|| trans_oob(smb_len(req->inbuf), poff, pcnt)) {
2931
goto bad_param;
2932
}
2933
memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
2934
}
2935
2936
if (dcnt) {
2937
if (trans_oob(state->total_data, ddisp, dcnt)
2938
|| trans_oob(smb_len(req->inbuf), doff, dcnt)) {
2939
goto bad_param;
2940
}
2941
memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
2942
}
2943
2944
if ((state->received_param < state->total_param) ||
2945
(state->received_data < state->total_data)) {
2946
END_PROFILE(SMBnttranss);
2947
return;
2948
}
2949
2950
handle_nttrans(conn, state, req);
2951
2952
DLIST_REMOVE(conn->pending_trans, state);
2953
SAFE_FREE(state->data);
2954
SAFE_FREE(state->param);
2955
TALLOC_FREE(state);
2956
END_PROFILE(SMBnttranss);
2957
return;
2958
2959
bad_param:
2960
2961
DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
2962
DLIST_REMOVE(conn->pending_trans, state);
2963
SAFE_FREE(state->data);
2964
SAFE_FREE(state->param);
2965
TALLOC_FREE(state);
2966
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2967
END_PROFILE(SMBnttranss);
2968
return;
2969
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.1