1/*
2 * netlink/route/classifier-modules.h   Classifier Module API
3 *
4 *	This library is free software; you can redistribute it and/or
5 *	modify it under the terms of the GNU Lesser General Public
6 *	License as published by the Free Software Foundation version 2.1
7 *	of the License.
8 *
9 * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
10 */
11
12#ifndef NETLINK_CLASS_MODULES_H_
13#define NETLINK_CLASS_MODULES_H_
14
15#include <netlink/netlink.h>
16
17#ifdef __cplusplus
18extern "C" {
19#endif
20
21/**
22 * Classifier operations
23 * @ingroup cls_api
24 */
25struct rtnl_cls_ops
26{
27	/**
28	 * Name of classifier module
29	 */
30	char co_kind[32];
31
32
33	/**
34	 * Size of private classifier data
35	 */
36	size_t co_size;
37
38	/**
39	 * Dump callbacks
40	 */
41	void (*co_dump[NL_DUMP_MAX+1])(struct rtnl_cls *,
42				       struct nl_dump_params *);
43	/**
44	 * Must return the contents supposed to be in TCA_OPTIONS
45	 */
46	int (*co_get_opts)(struct rtnl_cls *, struct nl_msg *);
47
48	/**
49	 * TCA_OPTIONS message parser
50	 */
51	int (*co_msg_parser)(struct rtnl_cls *);
52
53	/**
54	 * Called before a class object gets destroyed
55	 */
56	void (*co_free_data)(struct rtnl_cls *);
57
58	/**
59	 * Called whenever a classifier object needs to be cloned
60	 */
61	int (*co_clone)(struct rtnl_cls *, struct rtnl_cls *);
62
63	/**
64	 * INTERNAL (Do not use)
65	 */
66	struct rtnl_cls_ops *co_next;
67};
68
69extern int 			rtnl_cls_register(struct rtnl_cls_ops *);
70extern int 			rtnl_cls_unregister(struct rtnl_cls_ops *);
71extern struct rtnl_cls_ops *	rtnl_cls_lookup_ops(struct rtnl_cls *);
72extern struct rtnl_cls_ops *	__rtnl_cls_lookup_ops(const char *kind);
73
74#ifdef __cplusplus
75}
76#endif
77
78#endif
79