ext/dnet/intf.h

   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
  19 struct 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
  54 typedef struct intf_handle intf_t;
  55
  56 typedef int (*intf_handler)(const struct intf_entry *entry, void *arg);
  57
  58 __BEGIN_DECLS
  59 intf_t  *intf_open(void);
  60 int      intf_get(intf_t *i, struct intf_entry *entry);
  61 int      intf_get_src(intf_t *i, struct intf_entry *entry, struct addr *src);
  62 int      intf_get_dst(intf_t *i, struct intf_entry *entry, struct addr *dst);
  63 int      intf_set(intf_t *i, const struct intf_entry *entry);
  64 int      intf_loop(intf_t *i, intf_handler callback, void *arg);
  65 intf_t  *intf_close(intf_t *i);
  66 __END_DECLS
  67
  68 #endif /* DNET_INTF_H */