1/*
2 * dhcpcd - DHCP client daemon
3 * Copyright (c) 2006-2010 Roy Marples <roy@marples.name>
4 * All rights reserved
5
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#ifndef DHCPCD_H
29#define DHCPCD_H
30
31#include <sys/socket.h>
32#include <net/if.h>
33
34#include <limits.h>
35
36#include "dhcp.h"
37#include "if-options.h"
38
39#define HWADDR_LEN 20
40#define IF_SSIDSIZE 33
41#define PROFILE_LEN 64
42
43enum DHS {
44	DHS_INIT,
45	DHS_DISCOVER,
46	DHS_REQUEST,
47	DHS_BOUND,
48	DHS_RENEW,
49	DHS_REBIND,
50	DHS_REBOOT,
51	DHS_INFORM,
52	DHS_RENEW_REQUESTED,
53	DHS_INIT_IPV4LL,
54	DHS_PROBE
55};
56
57#define LINK_UP 	1
58#define LINK_UNKNOWN	0
59#define LINK_DOWN 	-1
60
61struct if_state {
62	enum DHS state;
63	char profile[PROFILE_LEN];
64	struct if_options *options;
65	struct dhcp_message *sent;
66	struct dhcp_message *offer;
67	struct dhcp_message *new;
68	struct dhcp_message *old;
69	struct dhcp_lease lease;
70	const char *reason;
71	time_t interval;
72	time_t nakoff;
73	uint32_t xid;
74	int socket;
75	int probes;
76	int claims;
77	int conflicts;
78	time_t defend;
79	struct in_addr fail;
80	size_t arping_index;
81};
82
83struct interface {
84	char name[IF_NAMESIZE];
85	struct if_state *state;
86
87	int flags;
88	sa_family_t family;
89	unsigned char hwaddr[HWADDR_LEN];
90	size_t hwlen;
91	int metric;
92	int carrier;
93	int wireless;
94	char ssid[IF_SSIDSIZE];
95
96	int raw_fd;
97	int udp_fd;
98	int arp_fd;
99	size_t buffer_size, buffer_len, buffer_pos;
100	unsigned char *buffer;
101
102	struct in_addr addr;
103	struct in_addr net;
104	struct in_addr dst;
105
106	char leasefile[PATH_MAX];
107	time_t start_uptime;
108
109	unsigned char *clientid;
110
111	struct interface *next;
112};
113
114extern int pidfd;
115extern int options;
116extern int ifac;
117extern char **ifav;
118extern int ifdc;
119extern char **ifdv;
120extern struct interface *ifaces;
121
122#endif
123