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SystemDefine.h
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SystemDefine.h
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#ifndef _SYSTEM_DEFINE_H
#define _SYSTEM_DEFINE_H
#ifdef __linux__
#include <net/ethernet.h>
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/udp.h>
#else
#define ETH_ALEN 6
struct ether_header
{
unsigned char ether_dhost[ETH_ALEN]; /* destination eth addr */
unsigned char ether_shost[ETH_ALEN]; /* source ether addr */
unsigned short ether_type; /* packet type ID field */
};
struct iphdr
{
#if defined(__LITTLE_ENDIAN_BITFIELD)
unsigned char ihl:4,
version:4;
#elif defined (__BIG_ENDIAN_BITFIELD)
unsigned char version:4,
ihl:4;
#else
unsigned char ihl:4,
version:4;
#endif
unsigned char tos;
unsigned short tot_len;
unsigned short id;
unsigned short frag_off;
unsigned char ttl;
unsigned char protocol;
unsigned short check;
unsigned int saddr;
unsigned int daddr;
/*The options start here. */
};
struct tcphdr
{
unsigned short source;
unsigned short dest;
unsigned int seq;
unsigned int ack_seq;
#if defined(__LITTLE_ENDIAN_BITFIELD)
unsigned short res1:4,
doff:4,
fin:1,
syn:1,
rst:1,
psh:1,
ack:1,
urg:1,
ece:1,
cwr:1;
#elif defined(__BIG_ENDIAN_BITFIELD)
unsigned short doff:4,
res1:4,
cwr:1,
ece:1,
urg:1,
ack:1,
psh:1,
rst:1,
syn:1,
fin:1;
#else
unsigned short res1:4,
doff:4,
fin:1,
syn:1,
rst:1,
psh:1,
ack:1,
urg:1,
ece:1,
cwr:1;
#endif // defind
unsigned short window;
unsigned short check;
unsigned short urg_ptr;
};
struct udphdr {
unsigned short source;
unsigned short dest;
unsigned short len;
unsigned short check;
};
#endif // __linux__
#endif // _SYSTEM_DEFINE_H