intf.h revision 6017:7e310503019e 
1/*
2 * intf.c
3 *
4 * Network interface operations.
5 *
6 * Copyright (c) 2000 Dug Song <dugsong@monkey.org>
7 *
8 * $Id: intf.h,v 1.16 2004/01/13 07:41:09 dugsong Exp $
9 */
10
11#ifndef DNET_INTF_H
12#define DNET_INTF_H
13
14/*
15 * Interface entry
16 */
17#define INTF_NAME_LEN	16
18
19struct intf_entry {
20        u_int		intf_len;		    /* length of entry */
21        char		intf_name[INTF_NAME_LEN];   /* interface name */
22        u_short		intf_type;		    /* interface type (r/o) */
23        u_short		intf_flags;		    /* interface flags */
24        u_int		intf_mtu;		    /* interface MTU */
25        struct addr	intf_addr;		    /* interface address */
26        struct addr	intf_dst_addr;		    /* point-to-point dst */
27        struct addr	intf_link_addr;		    /* link-layer address */
28        u_int		intf_alias_num;		    /* number of aliases */
29        struct addr	intf_alias_addrs __flexarr; /* array of aliases */
30};
31
32/*
33 * MIB-II interface types - http://www.iana.org/assignments/ianaiftype-mib
34 */
35#define INTF_TYPE_OTHER		1	/* other */
36#define INTF_TYPE_ETH		6	/* Ethernet */
37#define INTF_TYPE_TOKENRING	9	/* Token Ring */
38#define INTF_TYPE_FDDI		15	/* FDDI */
39#define INTF_TYPE_PPP		23	/* Point-to-Point Protocol */
40#define INTF_TYPE_LOOPBACK	24	/* software loopback */
41#define INTF_TYPE_SLIP		28	/* Serial Line Interface Protocol */
42#define INTF_TYPE_TUN		53	/* proprietary virtual/internal */
43
44/*
45 * Interface flags
46 */
47#define INTF_FLAG_UP		0x01	/* enable interface */
48#define INTF_FLAG_LOOPBACK	0x02	/* is a loopback net (r/o) */
49#define INTF_FLAG_POINTOPOINT	0x04	/* point-to-point link (r/o) */
50#define INTF_FLAG_NOARP		0x08	/* disable ARP */
51#define INTF_FLAG_BROADCAST	0x10	/* supports broadcast (r/o) */
52#define INTF_FLAG_MULTICAST	0x20	/* supports multicast (r/o) */
53
54typedef struct intf_handle intf_t;
55
56typedef int (*intf_handler)(const struct intf_entry *entry, void *arg);
57
58__BEGIN_DECLS
59intf_t	*intf_open(void);
60int	 intf_get(intf_t *i, struct intf_entry *entry);
61int	 intf_get_src(intf_t *i, struct intf_entry *entry, struct addr *src);
62int	 intf_get_dst(intf_t *i, struct intf_entry *entry, struct addr *dst);
63int	 intf_set(intf_t *i, const struct intf_entry *entry);
64int	 intf_loop(intf_t *i, intf_handler callback, void *arg);
65intf_t	*intf_close(intf_t *i);
66__END_DECLS
67
68#endif /* DNET_INTF_H */
69