include/net/ethernet.h

   1 #ifndef ETHERNET_H_
   2 #define ETHERNET_H_
   3
   4 #include <list.h>
   5 #include <types.h>
   6 #include <compiler.h>
   7 #include <net.h>
   8
   9
  10 /* link layer */
  11 #define ETHERTYPE_IP    0x0800
  12 #define ETHERTYPE_ARP   0x0806
  13
  14 struct ethernet_frame {
  15         union {
  16                 u8 raw[14];
  17                 struct {
  18                         mac_t dest;
  19                         mac_t src;
  20                         u8 type[2];
  21                         u8 payload[0];
  22                 };
  23         };
  24 } __packed;
  25
  26
  27 struct eth_handler {
  28         struct list list;
  29         u16 ethertype;
  30         int (*handler)(u8 *buf, size_t len);
  31 };
  32
  33 int eth_init(void);
  34 int eth_register_handler(struct eth_handler *han);
  35
  36 extern const mac_t mac_bcast; // XXX move elsewhere
  37 extern const ip_t ip_bcast;
  38
  39 #endif