157 lines
5.1 KiB
C
157 lines
5.1 KiB
C
/*
|
|
* dhcpcd - DHCP client daemon
|
|
* Copyright (c) 2006-2010 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 INTERFACE_H
|
|
#define INTERFACE_H
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/param.h>
|
|
#include <sys/socket.h>
|
|
|
|
#include <net/if.h>
|
|
#include <netinet/in.h>
|
|
#include <netinet/if_ether.h>
|
|
|
|
#include <limits.h>
|
|
|
|
#include "dhcp.h"
|
|
#include "dhcpcd.h"
|
|
|
|
#ifndef DUID_LEN
|
|
# define DUID_LEN 128 + 2
|
|
#endif
|
|
|
|
#define EUI64_ADDR_LEN 8
|
|
#define INFINIBAND_ADDR_LEN 20
|
|
|
|
/* Linux 2.4 doesn't define this */
|
|
#ifndef ARPHRD_IEEE1394
|
|
# define ARPHRD_IEEE1394 24
|
|
#endif
|
|
|
|
/* The BSD's don't define this yet */
|
|
#ifndef ARPHRD_INFINIBAND
|
|
# define ARPHRD_INFINIBAND 32
|
|
#endif
|
|
|
|
|
|
/* Work out if we have a private address or not
|
|
* 10/8
|
|
* 172.16/12
|
|
* 192.168/16
|
|
*/
|
|
#ifndef IN_PRIVATE
|
|
# define IN_PRIVATE(addr) (((addr & IN_CLASSA_NET) == 0x0a000000) || \
|
|
((addr & 0xfff00000) == 0xac100000) || \
|
|
((addr & IN_CLASSB_NET) == 0xc0a80000))
|
|
#endif
|
|
|
|
#define LINKLOCAL_ADDR 0xa9fe0000
|
|
#define LINKLOCAL_MASK IN_CLASSB_NET
|
|
#define LINKLOCAL_BRDC (LINKLOCAL_ADDR | ~LINKLOCAL_MASK)
|
|
|
|
#ifndef IN_LINKLOCAL
|
|
# define IN_LINKLOCAL(addr) ((addr & IN_CLASSB_NET) == LINKLOCAL_ADDR)
|
|
#endif
|
|
|
|
struct rt {
|
|
struct in_addr dest;
|
|
struct in_addr net;
|
|
struct in_addr gate;
|
|
const struct interface *iface;
|
|
struct rt *next;
|
|
};
|
|
|
|
extern int socket_afnet;
|
|
|
|
uint32_t get_netmask(uint32_t);
|
|
char *hwaddr_ntoa(const unsigned char *, size_t);
|
|
size_t hwaddr_aton(unsigned char *, const char *);
|
|
|
|
int getifssid(const char *, char *);
|
|
struct interface *init_interface(const char *);
|
|
struct interface *discover_interfaces(int, char * const *);
|
|
void free_interface(struct interface *);
|
|
int do_mtu(const char *, short int);
|
|
#define get_mtu(iface) do_mtu(iface, 0)
|
|
#define set_mtu(iface, mtu) do_mtu(iface, mtu)
|
|
|
|
int inet_ntocidr(struct in_addr);
|
|
int inet_cidrtoaddr(int, struct in_addr *);
|
|
|
|
int up_interface(struct interface *);
|
|
int if_conf(struct interface *);
|
|
int if_init(struct interface *);
|
|
|
|
int do_address(const char *,
|
|
struct in_addr *, struct in_addr *, struct in_addr *, int);
|
|
int if_address(const struct interface *,
|
|
const struct in_addr *, const struct in_addr *,
|
|
const struct in_addr *, int);
|
|
#define add_address(iface, addr, net, brd) \
|
|
if_address(iface, addr, net, brd, 1)
|
|
#define del_address(iface, addr, net) \
|
|
if_address(iface, addr, net, NULL, -1)
|
|
#define has_address(iface, addr, net) \
|
|
do_address(iface, addr, net, NULL, 0)
|
|
#define get_address(iface, addr, net, dst) \
|
|
do_address(iface, addr, net, dst, 1)
|
|
|
|
int if_route(const struct interface *, const struct in_addr *,
|
|
const struct in_addr *, const struct in_addr *, int, int);
|
|
#define add_route(iface, dest, mask, gate, metric) \
|
|
if_route(iface, dest, mask, gate, metric, 1)
|
|
#define change_route(iface, dest, mask, gate, metric) \
|
|
if_route(iface, dest, mask, gate, metric, 0)
|
|
#define del_route(iface, dest, mask, gate, metric) \
|
|
if_route(iface, dest, mask, gate, metric, -1)
|
|
#define del_src_route(iface, dest, mask, gate, metric) \
|
|
if_route(iface, dest, mask, gate, metric, -2)
|
|
void free_routes(struct rt *);
|
|
|
|
int open_udp_socket(struct interface *);
|
|
extern const size_t udp_dhcp_len;
|
|
ssize_t make_udp_packet(uint8_t **, const uint8_t *, size_t,
|
|
struct in_addr, struct in_addr);
|
|
ssize_t get_udp_data(const uint8_t **, const uint8_t *);
|
|
int valid_udp_packet(const uint8_t *, size_t, struct in_addr *);
|
|
|
|
int open_socket(struct interface *, int);
|
|
ssize_t send_packet(const struct interface *, struct in_addr,
|
|
const uint8_t *, ssize_t);
|
|
ssize_t send_raw_packet(const struct interface *, int,
|
|
const void *, ssize_t);
|
|
ssize_t get_raw_packet(struct interface *, int, void *, ssize_t);
|
|
|
|
int init_sockets(void);
|
|
int open_link_socket(void);
|
|
int manage_link(int);
|
|
int carrier_status(struct interface *);
|
|
|
|
int get_hwaddr(struct interface *);
|
|
#endif
|