1/*
2   Unix SMB/CIFS implementation.
3   Core SMB2 server
4
5   Copyright (C) Stefan Metzmacher 2009
6
7   This program is free software; you can redistribute it and/or modify
8   it under the terms of the GNU General Public License as published by
9   the Free Software Foundation; either version 3 of the License, or
10   (at your option) any later version.
11
12   This program is distributed in the hope that it will be useful,
13   but WITHOUT ANY WARRANTY; without even the implied warranty of
14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15   GNU General Public License for more details.
16
17   You should have received a copy of the GNU General Public License
18   along with this program.  If not, see <http://www.gnu.org/licenses/>.
19*/
20
21#include "includes.h"
22#include "smbd/globals.h"
23#include "../libcli/smb/smb_common.h"
24
25NTSTATUS smbd_smb2_request_process_keepalive(struct smbd_smb2_request *req)
26{
27	const uint8_t *inbody;
28	int i = req->current_idx;
29	DATA_BLOB outbody;
30	size_t expected_body_size = 0x04;
31	size_t body_size;
32
33	if (req->in.vector[i+1].iov_len != (expected_body_size & 0xFFFFFFFE)) {
34		return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
35	}
36
37	inbody = (const uint8_t *)req->in.vector[i+1].iov_base;
38
39	body_size = SVAL(inbody, 0x00);
40	if (body_size != expected_body_size) {
41		return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
42	}
43
44	/* TODO: update some time stamps */
45
46	outbody = data_blob_talloc(req->out.vector, NULL, 0x04);
47	if (outbody.data == NULL) {
48		return smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
49	}
50
51	SSVAL(outbody.data, 0x00, 0x04);	/* struct size */
52	SSVAL(outbody.data, 0x02, 0);		/* reserved */
53
54	return smbd_smb2_request_done(req, outbody, NULL);
55}
56