* Copyright 2006-2010, Haiku, Inc. All Rights Reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef IPV4_H
#define IPV4_H
#include <netinet/in.h>
#include <ByteOrder.h>
#define IPV4_VERSION 4
#define IP_RESERVED_FLAG 0x8000
#define IP_DONT_FRAGMENT 0x4000
#define IP_MORE_FRAGMENTS 0x2000
#define IP_FRAGMENT_OFFSET_MASK 0x1fff
struct ipv4_header {
#if B_HOST_IS_LENDIAN == 1
uint8 header_length : 4;
uint8 version : 4;
#else
uint8 version : 4;
uint8 header_length : 4;
#endif
uint8 service_type;
uint16 total_length;
uint16 id;
uint16 fragment_offset;
uint8 time_to_live;
uint8 protocol;
uint16 checksum;
in_addr_t source;
in_addr_t destination;
uint16 HeaderLength() const { return header_length << 2; }
uint16 TotalLength() const { return ntohs(total_length); }
uint16 FragmentOffset() const { return ntohs(fragment_offset); }
} _PACKED;
#endif
