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