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/* libnfnetlink.h: Header file for generic netfilter netlink interface
*
* (C) 2002 Harald Welte <laforge@gnumonks.org>
*/
#ifndef __LIBNFNETLINK_H
#define __LIBNFNETLINK_H
#include <linux/types.h>
#include <linux/netlink.h>
#include <linux/netfilter/nfnetlink.h>
#define NFNL_BUFFSIZE 8192
struct nfnl_handle {
int fd;
struct sockaddr_nl local;
struct sockaddr_nl peer;
u_int8_t subsys_id;
u_int32_t seq;
u_int32_t dump;
};
/* get a new library handle */
extern int nfnl_open(struct nfnl_handle *, u_int8_t, unsigned int);
extern int nfnl_close(struct nfnl_handle *);
extern int nfnl_send(struct nfnl_handle *, struct nlmsghdr *);
extern void nfnl_fill_hdr(struct nfnl_handle *, struct nlmsghdr *, int,
u_int8_t, u_int16_t, u_int16_t);
extern int nfnl_listen(struct nfnl_handle *,
int (*)(struct sockaddr_nl *, struct nlmsghdr *, void *),
void *);
extern int nfnl_talk(struct nfnl_handle *, struct nlmsghdr *, pid_t,
unsigned, struct nlmsghdr *,
int (*)(struct sockaddr_nl *, struct nlmsghdr *, void *),
void *);
/* nfnl attribute handling functions */
extern int nfnl_addattr_l(struct nlmsghdr *, int, int, void *, int);
extern int nfnl_addattr32(struct nlmsghdr *, int, int, u_int32_t);
extern int nfnl_nfa_addattr_l(struct nfattr *, int, int, void *, int);
extern int nfnl_nfa_addattr32(struct nfattr *, int, int, u_int32_t);
extern int nfnl_parse_attr(struct nfattr **, int, struct nfattr *, int);
extern void nfnl_dump_packet(struct nlmsghdr *, int, char *);
#endif /* __LIBNFNETLINK_H */
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