1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
/*
Unix SMB/CIFS implementation.
SMB2 client lock handling
Copyright (C) Stefan Metzmacher 2006
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "libcli/smb2/smb2.h"
#include "libcli/smb2/smb2_calls.h"
/*
send a lock request
*/
struct smb2_request *smb2_lock_send(struct smb2_tree *tree, struct smb2_lock *io)
{
struct smb2_request *req;
int i;
req = smb2_request_init_tree(tree, SMB2_OP_LOCK,
24 + io->in.lock_count*24, false, 0);
if (req == NULL) return NULL;
/* this is quite bizarre - the spec says we must lie about the length! */
SSVAL(req->out.body, 0, 0x30);
SSVAL(req->out.body, 0x02, io->in.lock_count);
SIVAL(req->out.body, 0x04, io->in.lock_sequence);
smb2_push_handle(req->out.body+0x08, &io->in.file.handle);
for (i=0;i<io->in.lock_count;i++) {
SBVAL(req->out.body, 0x18 + i*24, io->in.locks[i].offset);
SBVAL(req->out.body, 0x20 + i*24, io->in.locks[i].length);
SIVAL(req->out.body, 0x28 + i*24, io->in.locks[i].flags);
SIVAL(req->out.body, 0x2C + i*24, io->in.locks[i].reserved);
}
smb2_transport_send(req);
return req;
}
/*
recv a lock reply
*/
NTSTATUS smb2_lock_recv(struct smb2_request *req, struct smb2_lock *io)
{
if (!smb2_request_receive(req) ||
smb2_request_is_error(req)) {
return smb2_request_destroy(req);
}
SMB2_CHECK_PACKET_RECV(req, 0x04, false);
io->out.reserved = SVAL(req->in.body, 0x02);
return smb2_request_destroy(req);
}
/*
sync lock request
*/
NTSTATUS smb2_lock(struct smb2_tree *tree, struct smb2_lock *io)
{
struct smb2_request *req = smb2_lock_send(tree, io);
return smb2_lock_recv(req, io);
}
|
