Sha256: 2761c13b4ac3962da86f7c4a055e2de6a86f7c126bd05233a938920a4e902281
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Size: 1.46 KB
Versions: 20
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Stored size: 1.46 KB
Contents
/*
* IPv4 header definitions
*
* Copyright (C) 2008-2013 NEC Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2, as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef IPV4_H
#define IPV4_H
#include "buffer.h"
typedef struct {
#if __BYTE_ORDER == __LITTLE_ENDIAN
uint8_t ihl:4;
uint8_t version:4;
#elif __BYTE_ORDER == __BIG_ENDIAN
uint8_t version:4;
uint8_t ihl:4;
#endif
uint8_t tos;
uint16_t tot_len;
uint16_t id;
uint16_t frag_off;
uint8_t ttl;
uint8_t protocol;
uint16_t csum;
uint32_t saddr;
uint32_t daddr;
} ipv4_header_t;
#define IPV4_ADDRLEN 4
#define IPV4_IS_CLASSDE( _addr ) ( ( ( _addr ) & 0xe0000000UL ) == 0xe0000000UL )
#define IPV4_IS_LOOPBACK( _addr ) ( ( ( _addr ) & 0xffffff00UL ) == 0x7f000000UL )
#define IPV4_IS_LIMITEDBC( _addr ) ( ( _addr ) == 0xffffffffUL )
#endif // IPV4_H
/*
* Local variables:
* c-basic-offset: 2
* indent-tabs-mode: nil
* End:
*/
Version data entries
20 entries across 20 versions & 1 rubygems