hdr.h
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1 /*
2  * Copyright (C) 2015 Martine Lenders <mlenders@inf.fu-berlin.de>
3  *
4  * This file is subject to the terms and conditions of the GNU Lesser General
5  * Public License v2.1. See the file LICENSE in the top level directory for
6  * more details.
7  */
8 
21 #ifndef NET_ETHERNET_HDR_H
22 #define NET_ETHERNET_HDR_H
23 
24 #include <inttypes.h>
25 
26 #include "byteorder.h"
27 
28 #ifdef __cplusplus
29 extern "C" {
30 #endif
31 
32 #define ETHERNET_ADDR_LEN (6)
34 #ifndef ETH_ALEN
35 #define ETH_ALEN ETHERNET_ADDR_LEN
38 #endif
39 
43 typedef struct __attribute__((packed)) {
44  uint8_t dst[ETHERNET_ADDR_LEN];
45  uint8_t src[ETHERNET_ADDR_LEN];
46  network_uint16_t type;
47 } ethernet_hdr_t;
48 
49 #ifdef __cplusplus
50 }
51 #endif
52 
53 #endif /* NET_ETHERNET_HDR_H */
byteorder.h
Functions to work with different byte orders.
ETHERNET_ADDR_LEN
#define ETHERNET_ADDR_LEN
Length of an Ethernet address.
Definition: hdr.h:32
inttypes.h
Adds include for missing inttype definitions.
ethernet_hdr_t
Ethernet header.
Definition: hdr.h:43
ethernet_hdr_t::type
network_uint16_t type
ether type (see Ether types)
Definition: hdr.h:46
be_uint16_t
A 16 bit integer in big endian aka network byte order.
Definition: byteorder.h:74