/* * libipq.h * * IPQ library for userspace. * * Author: James Morris <jmorris@intercode.com.au> * * Copyright (c) 2000-2001 Netfilter Core Team * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * */#ifndef _LIBIPQ_H#define _LIBIPQ_H#include <errno.h>#include <unistd.h>#include <fcntl.h>#include <sys/types.h>#include <sys/socket.h>#include <sys/uio.h>#include <asm/types.h>#include <linux/netlink.h>#ifdef KERNEL_64_USERSPACE_32#include "ip_queue_64.h"typedef u_int64_t ipq_id_t;#else#include <linux/netfilter_ipv4/ip_queue.h>typedef u_int32_t ipq_id_t;#endif#ifdef DEBUG_LIBIPQ#include <stdio.h>#define LDEBUG(x...) fprintf(stderr, ## x)#else#define LDEBUG(x...)#endif	/* DEBUG_LIBIPQ *//* FIXME: glibc sucks */#ifndef MSG_TRUNC#define MSG_TRUNC 0x20#endifstruct ipq_handle{	int fd;	u_int8_t blocking;	struct sockaddr_nl local;	struct sockaddr_nl peer;};struct ipq_handle *ipq_create_handle(u_int32_t flags, u_int32_t protocol);int ipq_destroy_handle(struct ipq_handle *h);ssize_t ipq_read(const struct ipq_handle *h,                unsigned char *buf, size_t len, int timeout);int ipq_set_mode(const struct ipq_handle *h, u_int8_t mode, size_t len);ipq_packet_msg_t *ipq_get_packet(const unsigned char *buf);int ipq_message_type(const unsigned char *buf);int ipq_get_msgerr(const unsigned char *buf);int ipq_set_verdict(const struct ipq_handle *h,                    ipq_id_t id,                    unsigned int verdict,                    size_t data_len,                    unsigned char *buf);int ipq_ctl(const struct ipq_handle *h, int request, ...);char *ipq_errstr(void);void ipq_perror(const char *s);#endif	/* _LIBIPQ_H */