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/*
* dhcpcd - DHCP client daemon
* Copyright (c) 2006-2013 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 IPV4_H
#define IPV4_H
#include "dhcpcd.h"
struct rt {
TAILQ_ENTRY(rt) next;
struct in_addr dest;
struct in_addr net;
struct in_addr gate;
const struct interface *iface;
int metric;
struct in_addr src;
};
TAILQ_HEAD(rt_head, rt);
struct ipv4_addr {
TAILQ_ENTRY(ipv4_addr) next;
struct in_addr addr;
struct in_addr net;
struct in_addr dst;
};
TAILQ_HEAD(ipv4_addrhead, ipv4_addr);
struct ipv4_state {
struct ipv4_addrhead addrs;
};
#define IPV4_STATE(ifp) \
((struct ipv4_state *)(ifp)->if_data[IF_DATA_IPV4])
#define IPV4_CSTATE(ifp) \
((const struct ipv4_state *)(ifp)->if_data[IF_DATA_IPV4])
#ifdef INET
int ipv4_init(void);
int inet_ntocidr(struct in_addr);
int inet_cidrtoaddr(int, struct in_addr *);
uint32_t ipv4_getnetmask(uint32_t);
int ipv4_addrexists(const struct in_addr *);
void ipv4_buildroutes(void);
void ipv4_applyaddr(void *);
int ipv4_routedeleted(const struct rt *);
struct ipv4_addr *ipv4_findaddr(struct interface *,
const struct in_addr *, const struct in_addr *);
void ipv4_handleifa(int, struct if_head *, const char *,
const struct in_addr *, const struct in_addr *, const struct in_addr *);
int if_address(const struct interface *,
const struct in_addr *, const struct in_addr *,
const struct in_addr *, int);
#define ipv4_addaddress(iface, addr, net, brd) \
if_address(iface, addr, net, brd, 1)
#define ipv4_setaddress(iface, addr, net, brd) \
if_address(iface, addr, net, brd, 2)
#define ipv4_deleteaddress(iface, addr, net) \
if_address(iface, addr, net, NULL, -1)
int if_route(const struct rt *rt, int);
#define ipv4_addroute(rt) if_route(rt, 1)
#define ipv4_changeroute(rt) if_route(rt, 0)
#define ipv4_deleteroute(rt) if_route(rt, -1)
#define del_src_route(rt) i_route(rt, -2);
void ipv4_freeroutes(struct rt_head *);
int ipv4_opensocket(struct interface *, int);
ssize_t ipv4_sendrawpacket(const struct interface *,
int, const void *, ssize_t);
ssize_t ipv4_getrawpacket(struct interface *, int, void *, ssize_t, int *);
void ipv4_free(struct interface *);
#else
#define ipv4_init() (-1)
#define ipv4_applyaddr(a) {}
#define ipv4_freeroutes(a) {}
#define ipv4_free(a) {}
#define ipv4_addrexists(a) (0)
#endif
#endif
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