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/*
* netlink/route/cls/ematch.h Extended Matches
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation version 2.1
* of the License.
*
* Copyright (c) 2008-2010 Thomas Graf <tgraf@suug.ch>
*/
#ifndef NETLINK_CLS_EMATCH_H_
#define NETLINK_CLS_EMATCH_H_
#include <netlink/netlink.h>
#include <netlink/msg.h>
#include <netlink/route/classifier.h>
#include <linux/pkt_cls.h>
#ifdef __cplusplus
extern "C" {
#endif
/* FIXME: Should be moved to the kernel header at some point */
#define RTNL_EMATCH_PROGID 2
struct rtnl_ematch;
struct rtnl_ematch_tree;
/**
* Extended Match Operations
*/
struct rtnl_ematch_ops
{
int eo_kind;
const char * eo_name;
size_t eo_minlen;
size_t eo_datalen;
int (*eo_parse)(struct rtnl_ematch *, void *, size_t);
void (*eo_dump)(struct rtnl_ematch *,
struct nl_dump_params *);
int (*eo_fill)(struct rtnl_ematch *, struct nl_msg *);
void (*eo_free)(struct rtnl_ematch *);
struct nl_list_head eo_list;
};
extern int rtnl_ematch_register(struct rtnl_ematch_ops *);
extern struct rtnl_ematch_ops * rtnl_ematch_lookup_ops(int);
extern struct rtnl_ematch_ops * rtnl_ematch_lookup_ops_by_name(const char *);
extern struct rtnl_ematch * rtnl_ematch_alloc(void);
extern int rtnl_ematch_add_child(struct rtnl_ematch *,
struct rtnl_ematch *);
extern void rtnl_ematch_unlink(struct rtnl_ematch *);
extern void rtnl_ematch_free(struct rtnl_ematch *);
extern void * rtnl_ematch_data(struct rtnl_ematch *);
extern void rtnl_ematch_set_flags(struct rtnl_ematch *,
uint16_t);
extern void rtnl_ematch_unset_flags(struct rtnl_ematch *,
uint16_t);
extern uint16_t rtnl_ematch_get_flags(struct rtnl_ematch *);
extern int rtnl_ematch_set_ops(struct rtnl_ematch *,
struct rtnl_ematch_ops *);
extern int rtnl_ematch_set_kind(struct rtnl_ematch *,
uint16_t);
extern int rtnl_ematch_set_name(struct rtnl_ematch *,
const char *);
extern struct rtnl_ematch_tree *rtnl_ematch_tree_alloc(uint16_t);
extern void rtnl_ematch_tree_free(struct rtnl_ematch_tree *);
extern void rtnl_ematch_tree_add(struct rtnl_ematch_tree *,
struct rtnl_ematch *);
extern int rtnl_ematch_parse_attr(struct nlattr *,
struct rtnl_ematch_tree **);
extern int rtnl_ematch_fill_attr(struct nl_msg *, int,
struct rtnl_ematch_tree *);
extern void rtnl_ematch_tree_dump(struct rtnl_ematch_tree *,
struct nl_dump_params *);
extern int rtnl_ematch_parse_expr(const char *, char **,
struct rtnl_ematch_tree **);
extern char * rtnl_ematch_offset2txt(uint8_t, uint16_t,
char *, size_t);
extern char * rtnl_ematch_opnd2txt(uint8_t, char *, size_t);
#ifdef __cplusplus
}
#endif
#endif
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