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/*
* parpd - Proxy ARP Daemon
* Copyright (c) 2008-2017 Roy Marples <roy@marples.name>
* All rights reserved
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef PARPD_H
#define PARPD_H
#include <net/if.h>
#include "config.h"
#ifdef HAVE_SYS_RBTREE_H
#include <sys/rbtree.h>
#endif
#define VERSION "1.99"
#define PARPD_CONF SYSCONFDIR "/parpd.conf"
#define HWADDR_LEN 20
#define PARPD_IGNORE 0
#define PARPD_PROXY 1
#define PARPD_HALFPROXY 2
struct pent {
rb_node_t rbtree;
char action;
in_addr_t ip;
in_addr_t net;
uint8_t hwaddr[HWADDR_LEN];
size_t hwlen;
};
struct interface
{
rb_node_t rbtree;
char ifname[IF_NAMESIZE];
sa_family_t family;
unsigned char hwaddr[HWADDR_LEN];
size_t hwlen;
int fd;
size_t buffer_size, buffer_len, buffer_pos;
unsigned char *buffer;
rb_tree_t pents;
};
int bpf_open_arp(struct interface *);
ssize_t bpf_write(const struct interface *,
const uint8_t *, size_t, const void *, size_t);
ssize_t bpf_read(struct interface *, void *, size_t);
#define UNCONST(a) ((void *)(unsigned long)(const void *)(a))
#endif
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