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/*
* intf.c
*
* Network interface operations.
*
* Copyright (c) 2000 Dug Song <dugsong@monkey.org>
*
* $Id: intf.h,v 1.16 2004/01/13 07:41:09 dugsong Exp $
*/
#ifndef DNET_INTF_H
#define DNET_INTF_H
/*
* Interface entry
*/
#define INTF_NAME_LEN 16
struct intf_entry {
u_int intf_len; /* length of entry */
char intf_name[INTF_NAME_LEN]; /* interface name */
u_short intf_type; /* interface type (r/o) */
u_short intf_flags; /* interface flags */
u_int intf_mtu; /* interface MTU */
struct addr intf_addr; /* interface address */
struct addr intf_dst_addr; /* point-to-point dst */
struct addr intf_link_addr; /* link-layer address */
u_int intf_alias_num; /* number of aliases */
struct addr intf_alias_addrs __flexarr; /* array of aliases */
};
/*
* MIB-II interface types - http://www.iana.org/assignments/ianaiftype-mib
*/
#define INTF_TYPE_OTHER 1 /* other */
#define INTF_TYPE_ETH 6 /* Ethernet */
#define INTF_TYPE_TOKENRING 9 /* Token Ring */
#define INTF_TYPE_FDDI 15 /* FDDI */
#define INTF_TYPE_PPP 23 /* Point-to-Point Protocol */
#define INTF_TYPE_LOOPBACK 24 /* software loopback */
#define INTF_TYPE_SLIP 28 /* Serial Line Interface Protocol */
#define INTF_TYPE_TUN 53 /* proprietary virtual/internal */
/*
* Interface flags
*/
#define INTF_FLAG_UP 0x01 /* enable interface */
#define INTF_FLAG_LOOPBACK 0x02 /* is a loopback net (r/o) */
#define INTF_FLAG_POINTOPOINT 0x04 /* point-to-point link (r/o) */
#define INTF_FLAG_NOARP 0x08 /* disable ARP */
#define INTF_FLAG_BROADCAST 0x10 /* supports broadcast (r/o) */
#define INTF_FLAG_MULTICAST 0x20 /* supports multicast (r/o) */
typedef struct intf_handle intf_t;
typedef int (*intf_handler)(const struct intf_entry *entry, void *arg);
__BEGIN_DECLS
intf_t *intf_open(void);
int intf_get(intf_t *i, struct intf_entry *entry);
int intf_get_src(intf_t *i, struct intf_entry *entry, struct addr *src);
int intf_get_dst(intf_t *i, struct intf_entry *entry, struct addr *dst);
int intf_set(intf_t *i, const struct intf_entry *entry);
int intf_loop(intf_t *i, intf_handler callback, void *arg);
intf_t *intf_close(intf_t *i);
__END_DECLS
#endif /* DNET_INTF_H */
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