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Diffstat (limited to 'libdnet-stripped/include/dnet/eth.h')
| -rw-r--r-- | libdnet-stripped/include/dnet/eth.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/libdnet-stripped/include/dnet/eth.h b/libdnet-stripped/include/dnet/eth.h new file mode 100644 index 0000000..226f77e --- /dev/null +++ b/libdnet-stripped/include/dnet/eth.h @@ -0,0 +1,79 @@ +/* + * eth.h + * + * Ethernet. + * + * Copyright (c) 2000 Dug Song <dugsong@monkey.org> + * + * $Id: eth.h 547 2005-01-25 21:30:40Z dugsong $ + */ + +#ifndef DNET_ETH_H +#define DNET_ETH_H + +#define ETH_ADDR_LEN 6 +#define ETH_ADDR_BITS 48 +#define ETH_TYPE_LEN 2 +#define ETH_CRC_LEN 4 +#define ETH_HDR_LEN 14 + +#define ETH_LEN_MIN 64 /* minimum frame length with CRC */ +#define ETH_LEN_MAX 1518 /* maximum frame length with CRC */ + +#define ETH_MTU (ETH_LEN_MAX - ETH_HDR_LEN - ETH_CRC_LEN) +#define ETH_MIN (ETH_LEN_MIN - ETH_HDR_LEN - ETH_CRC_LEN) + +typedef struct eth_addr { + uint8_t data[ETH_ADDR_LEN]; +} eth_addr_t; + +struct eth_hdr { + eth_addr_t eth_dst; /* destination address */ + eth_addr_t eth_src; /* source address */ + uint16_t eth_type; /* payload type */ +}; + +/* + * Ethernet payload types - http://standards.ieee.org/regauth/ethertype + */ +#define ETH_TYPE_PUP 0x0200 /* PUP protocol */ +#define ETH_TYPE_IP 0x0800 /* IP protocol */ +#define ETH_TYPE_ARP 0x0806 /* address resolution protocol */ +#define ETH_TYPE_REVARP 0x8035 /* reverse addr resolution protocol */ +#define ETH_TYPE_8021Q 0x8100 /* IEEE 802.1Q VLAN tagging */ +#define ETH_TYPE_IPV6 0x86DD /* IPv6 protocol */ +#define ETH_TYPE_MPLS 0x8847 /* MPLS */ +#define ETH_TYPE_MPLS_MCAST 0x8848 /* MPLS Multicast */ +#define ETH_TYPE_PPPOEDISC 0x8863 /* PPP Over Ethernet Discovery Stage */ +#define ETH_TYPE_PPPOE 0x8864 /* PPP Over Ethernet Session Stage */ +#define ETH_TYPE_LOOPBACK 0x9000 /* used to test interfaces */ + +#define ETH_IS_MULTICAST(ea) (*(ea) & 0x01) /* is address mcast/bcast? */ + +#define ETH_ADDR_BROADCAST "\xff\xff\xff\xff\xff\xff" + +#define eth_pack_hdr(h, dst, src, type) do { \ + struct eth_hdr *eth_pack_p = (struct eth_hdr *)(h); \ + memmove(ð_pack_p->eth_dst, &(dst), ETH_ADDR_LEN); \ + memmove(ð_pack_p->eth_src, &(src), ETH_ADDR_LEN); \ + eth_pack_p->eth_type = htons(type); \ +} while (0) + +typedef struct eth_handle eth_t; + +__BEGIN_DECLS +eth_t *eth_open(const char *device); +int eth_get(eth_t *e, eth_addr_t *ea); +int eth_set(eth_t *e, const eth_addr_t *ea); +ssize_t eth_send(eth_t *e, const void *buf, size_t len); +eth_t *eth_close(eth_t *e); + +int eth_get_pcap_devname(const char *ifname, char *pcapdev, int pcapdevlen); + +char *eth_ntop(const eth_addr_t *eth, char *dst, size_t len); +int eth_pton(const char *src, eth_addr_t *dst); +char *eth_ntoa(const eth_addr_t *eth); +#define eth_aton eth_pton +__END_DECLS + +#endif /* DNET_ETH_H */ |