hdr.h
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1 /*
2  * SPDX-FileCopyrightText: 2015 Martine Lenders <mlenders@inf.fu-berlin.de>
3  * SPDX-License-Identifier: LGPL-2.1-only
4  */
5 
6 #pragma once
7 
20 #include <inttypes.h>
21 
22 #include "byteorder.h"
23 
24 #ifdef __cplusplus
25 extern "C" {
26 #endif
27 
28 #define ETHERNET_ADDR_LEN (6)
30 #ifndef ETH_ALEN
31 #define ETH_ALEN ETHERNET_ADDR_LEN
34 #endif
35 
39 typedef struct __attribute__((packed)) {
40  uint8_t dst[ETHERNET_ADDR_LEN];
41  uint8_t src[ETHERNET_ADDR_LEN];
42  network_uint16_t type;
43 } ethernet_hdr_t;
44 
45 #ifdef __cplusplus
46 }
47 #endif
48 
byteorder.h
Functions to work with different byte orders.
ETHERNET_ADDR_LEN
#define ETHERNET_ADDR_LEN
Length of an Ethernet address.
Definition: hdr.h:28
inttypes.h
Adds include for missing inttype definitions.
ethernet_hdr_t
Ethernet header.
Definition: hdr.h:39
ethernet_hdr_t::type
network_uint16_t type
ether type (see Ether types)
Definition: hdr.h:42
be_uint16_t
A 16 bit integer in big endian aka network byte order.
Definition: byteorder.h:70