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/*
* dhcpcd - DHCP client daemon
* Copyright (c) 2006-2011 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 DHCPCD_H
#define DHCPCD_H
#include <sys/socket.h>
#include <net/if.h>
#include <netinet/in.h>
#include <limits.h>
#include "control.h"
#include "dhcp.h"
#include "if-options.h"
#define HWADDR_LEN 20
#define IF_SSIDSIZE 33
#define PROFILE_LEN 64
enum DHS {
DHS_INIT,
DHS_DISCOVER,
DHS_REQUEST,
DHS_BOUND,
DHS_RENEW,
DHS_REBIND,
DHS_REBOOT,
DHS_INFORM,
DHS_RENEW_REQUESTED,
DHS_INIT_IPV4LL,
DHS_PROBE
};
#define LINK_UP 1
#define LINK_UNKNOWN 0
#define LINK_DOWN -1
struct if_state {
enum DHS state;
char profile[PROFILE_LEN];
struct if_options *options;
struct dhcp_message *sent;
struct dhcp_message *offer;
struct dhcp_message *new;
struct dhcp_message *old;
struct dhcp_lease lease;
const char *reason;
time_t interval;
time_t nakoff;
uint32_t xid;
int socket;
int probes;
int claims;
int conflicts;
time_t defend;
struct in_addr fail;
size_t arping_index;
};
struct ra_opt {
uint8_t type;
struct timeval expire;
char *option;
struct ra_opt *next;
};
struct ra {
struct in6_addr from;
char sfrom[INET6_ADDRSTRLEN];
unsigned char *data;
ssize_t data_len;
struct timeval received;
uint32_t lifetime;
struct in6_addr prefix;
int prefix_len;
uint32_t prefix_vltime;
uint32_t prefix_pltime;
char sprefix[INET6_ADDRSTRLEN];
struct ra_opt *options;
int expired;
struct ra *next;
};
struct interface {
char name[IF_NAMESIZE];
struct if_state *state;
int flags;
sa_family_t family;
unsigned char hwaddr[HWADDR_LEN];
size_t hwlen;
int metric;
int carrier;
int wireless;
char ssid[IF_SSIDSIZE];
int raw_fd;
int udp_fd;
int arp_fd;
size_t buffer_size, buffer_len, buffer_pos;
unsigned char *buffer;
struct in_addr addr;
struct in_addr net;
struct in_addr dst;
char leasefile[PATH_MAX];
time_t start_uptime;
unsigned char *clientid;
unsigned char *rs;
size_t rslen;
int rsprobes;
struct ra *ras;
struct interface *next;
};
extern int pidfd;
extern unsigned long long options;
extern int ifac;
extern char **ifav;
extern int ifdc;
extern char **ifdv;
extern struct interface *ifaces;
extern int avoid_routes;
struct interface *find_interface(const char *);
int handle_args(struct fd_list *, int, char **);
void handle_carrier(int, int, const char *);
void handle_interface(int, const char *);
void handle_hwaddr(const char *, unsigned char *, size_t);
void handle_ifa(int, const char *,
struct in_addr *, struct in_addr *, struct in_addr *);
void handle_exit_timeout(void *);
void start_interface(void *);
void start_discover(void *);
void start_request(void *);
void start_renew(void *);
void start_rebind(void *);
void start_reboot(struct interface *);
void start_expire(void *);
void send_decline(struct interface *);
void open_sockets(struct interface *);
void close_sockets(struct interface *);
void drop_dhcp(struct interface *, const char *);
void drop_interface(struct interface *, const char *);
int select_profile(struct interface *, const char *);
#endif
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