info.h revision 12198:4db936bda957 
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
22 * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
23 */
24
25#ifndef _RDSV3_INFO_H
26#define	_RDSV3_INFO_H
27
28struct rdsv3_info_iterator {
29	char *addr;
30	unsigned long offset;
31};
32
33struct rdsv3_info_lengths {
34	unsigned int	nr;
35	unsigned int	each;
36};
37
38struct rdsv3_sock;
39
40/*
41 * These functions must fill in the fields of @lens to reflect the size
42 * of the available info source.  If the snapshot fits in @len then it
43 * should be copied using @iter.  The caller will deduce if it was copied
44 * or not by comparing the lengths.
45 */
46typedef void (*rdsv3_info_func)(struct rsock *sock, unsigned int len,
47    struct rdsv3_info_iterator *iter,
48    struct rdsv3_info_lengths *lens);
49
50#define	rdsv3_info_copy(iter, data, bytes)			\
51	bcopy(data, iter->addr + iter->offset, bytes);		\
52	iter->offset += bytes
53
54void rdsv3_info_register_func(int optname, rdsv3_info_func func);
55void rdsv3_info_deregister_func(int optname, rdsv3_info_func func);
56int rdsv3_info_getsockopt(struct rsock *sock, int optname, char *optval,
57    socklen_t *optlen);
58
59#endif /* _RDSV3_INFO_H */
60