mps.h

来自「linux下的多功能发包工具」· C头文件 代码 · 共 106 行

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <assert.h>
#include <netinet/in.h>
#include <linux/socket.h>
#include <linux/types.h>
#include <arpa/inet.h>
#include <linux/if.h>
#include <string.h>
#include <signal.h>
#include <sys/ioctl.h>

typedef char Boolean;

#define MACHDRSIZE			14

#define TRUE			0
#define FALSE			-1
#define SENDTCPSEQ		123456


#define IPTOSTR(addr) \
	((unsigned char *)&addr)[0], \
	((unsigned char *)&addr)[1], \
	((unsigned char *)&addr)[2], \
	((unsigned char *)&addr)[3]




typedef struct iphdr
{
	unsigned char h_verlen;
	unsigned char tos;
	unsigned short total_len;
	unsigned short ident;
	unsigned short frag_and_flags;
	unsigned char  ttl;
	unsigned char proto;
	unsigned short checksum;
	unsigned int sourceIP;
	unsigned int destIP;
} _iphdr;

typedef struct st_psdhdr
{
	unsigned long saddr;
	unsigned long daddr;
	char mbz;
	char ptcl;
	unsigned short tcpl;
} psdhdr; 



typedef struct tcphdr
{
	__u16 th_sport;
	__u16 th_dport;
	unsigned int th_seq;
	unsigned int th_ack;
	unsigned char th_lenres;
	unsigned char th_flag;
	__u16 th_win;
	__u16 th_sum;
	__u16 th_urp;
} _tcphdr; 


typedef struct udphdr {
	__u16	sport;
	__u16	dport;
	__u16	len;
	__u16	checksum;
} _udphdr;


typedef struct icmphdr
{
	__u8 type;
	__u8 code;
	__u16 checksum;
	__u16 id;
	__u16 seq;
} _icmphdr;





static inline void set_signal(int signo, void (*handler)(int))
{
	struct sigaction sa;

	memset(&sa, 0, sizeof(sa));

	sa.sa_handler = (void (*)(int))handler;
#ifdef SA_INTERRUPT
	sa.sa_flags = SA_INTERRUPT;
#endif
	sigaction(signo, &sa, NULL);
}