sendpacket.c

linux 802.1x 源码,兼容锐捷客户端 代码简洁小巧

#include "sendpacket.h"

//datas
//经管
/*
unsigned char start_packet[0x40]="\x01\x80\xc2\x00\x00\x03\x00\x09\x6b\xc2\x74\x62\x88\x8e\x01\x01"
				 							"\x00\x2a\x20\x14\x01\x00\x04\x04\x00\x01\x0d\x22\xe3\x2f\x1c\x45"
											"\x12\x03\xba\x33\xd5\x77\x3c\x28\x13\x64\xde\x3f\xad\x57\xcb\x61"
				 							"\xcb\xde\x44\xad\xe9\xb3\x30\x32\x37\x3b\x69\xc8\xa5\xa5\xa5\xa5";
*/


//信息,北校区西10#test
unsigned char start_packet[0x40]="\x01\x80\xc2\x00\x00\x03\x00\x11\x5b\x9e\xf3\x41\x88\x8e\x01\x01"
											"\x00\x2a\x20\x14\x01\x00\x04\x04\x00\x01\x0d\x22\x91\x01\xe9\x27"
											"\x27\x6f\x0c\x5e\x32\x29\x2c\x0f\x2e\x1a\xc9\x48\xa9\x7d\x07\x4e"
											"\x54\xb2\x73\x19\xf6\xcc\xd4\xbb\xda\x50\x4e\xb5\xa5\xa5\xa5\xa5";
	

										
unsigned char name_packet[0x40]= "\x01\x80\xc2\x00\x00\x03\x00\x11\x5b\x9e\xf3\x41\x88\x8e\x01\x00"
											"\x00\x10\x02\x01\x00\x10\x01\x57\x46\x5a\xa5\xa5\xa5\xa5\xa5\xa5"	
											"\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5"	
											"\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5";
											
unsigned char password_packet[0x40]="\x01\x80\xc2\x00\x00\x03\x00\x11\x5b\x9e\xf3\x41\x88\x8e\x01\x00"
											"\x00\x21\x02\x02\x00\x21\x04\x10\x06\x9b\x40\xd2\x56\xf2\x67\xae"
											"\x2e\x86\xc0\x73\xa4\xef\x13\xbf\x57\x46\x5a\x30\x35\x32\x32\x33"
											"\x32\x33\x32\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5";
											
unsigned char echo_packet[0x40]= "\x01\x80\xc2\x00\x00\x03\x00\x11\x5b\x9e\xf3\x41\x88\x8e\x01\x0b"
											"\x00\x00\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5"
											"\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5"
											"\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5";
											
unsigned char notify_packet[0x40]="\x01\x80\xc2\x00\x00\x03\x00\x11\x5b\x9e\xf3\x41\x88\x8e\x01\x0d"
											"\x00\x1c\x20\x14\x01\x01\x14\x06\xdb\xf5\xd6\x91\x10\x06\xff\xff"
											"\xff\x00\x0f\x06\xdb\xf5\xd6\x01\x11\x06\xdb\xf5\xc0\x0a\xa5\xa5"
											"\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5"; 
  											
											
unsigned char logoff_packet[0x40]="\x01\x80\xc2\x00\x00\x03\x00\x11\x5b\x9e\xf3\x41\x88\x8e\x01\x02"	
											"\x00\x00\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5"
											"\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5"
											"\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5\xa5";
																					
										
void initAllPackets(char localMAC[6],char serverMAC[6])
{
/*
	unsigned char r[32];
	int i = 0;
	time_t t;
	srandom(time(&t));
	//生成32字节随机数
	for(i = 0;i < 32;i++)
		r[i] = random()%253+1;
	memcpy(start_packet+0x1c,r,32);
*/	
	memcpy(start_packet,serverMAC,6);
	memcpy(start_packet+0x06,localMAC,6);

	
	memcpy(name_packet,serverMAC,6);
	memcpy(name_packet+0x06,localMAC,6);
	
	memcpy(password_packet,serverMAC,6);
	memcpy(password_packet+0x06,localMAC,6);
	
	memcpy(echo_packet,serverMAC,6);
	memcpy(echo_packet+0x06,localMAC,6);
	
	memcpy(logoff_packet,serverMAC,6);
	memcpy(logoff_packet+0x06,localMAC,6);
	
	memcpy(notify_packet,serverMAC,6);
	memcpy(notify_packet+0x06,localMAC,6);

}											

void printPacket(unsigned char packet[0x40])
{
	int i = 0;
	for(i = 0;i < 0x40; i++)
		printf("%02x",packet[i]);
	printf("\n");
}

void modifyNotify(char localIP[4],char netMask[4],char gateway[4],char dhcpserver[4])
{
	memcpy(notify_packet+0x18,localIP,4);
	memcpy(notify_packet+0x1e,netMask,4);
	memcpy(notify_packet+0x24,gateway,4);
	memcpy(notify_packet+0x2A,dhcpserver,4);
}

void modifyName(char name[],int namelen)
{
	name_packet[0x11] = (unsigned char)namelen+5;
	name_packet[0x15] = name_packet[0x11];
	memcpy(name_packet+0x17,name,namelen);
	
	password_packet[0x11] = (unsigned char)namelen+22;
	password_packet[0x15] = password_packet[0x11];
	memcpy(password_packet+0x28,name,namelen);
}

void modifyPassword(char password[16])
{
	//printf("更新口令密文\n");
	memcpy(password_packet+0x18,password,16);
}	

								
				
//sendpackets
int sendStartPacket(libnet_t* l)
{
	//fputs("send start packet\n",stdout);
	//printPacket(start_packet);
	return (libnet_write_link(l,start_packet,0x40)==0x40)?0:-1;
}

int sendNamePacket(libnet_t* l,unsigned char id)
{
	//printf("send username with id = %x\n",id);
	name_packet[0x13] = id;
	//printPacket(name_packet);
	return (libnet_write_link(l,name_packet,0x40)==0x40)?0:-1;
}

int sendPasswordPacket(libnet_t* l,unsigned char id)
{
	//printf("send password with id = %x\n",id);
	password_packet[0x13] = id;
	//printPacket(password_packet);
	return (libnet_write_link(l,password_packet,0x40)==0x40)?0:-1;
}

int sendLogoffPacket(libnet_t* l)
{
	return (libnet_write_link(l,logoff_packet,0x40)==0x40)?0:-1;
}

int sendSessionEchoPacket(libnet_t* l)
{
	fputs("send an echo packet\n",stdout);
	//printPacket(echo_packet);
	return (libnet_write_link(l,echo_packet,0x40)==0x40)?0:-1;
}

int sendNotifyPacket(libnet_t* l)
{
	//fputs("send an notify packet\n",stdout);
	//printPacket(notify_packet);
	return (libnet_write_link(l,notify_packet,0x40)==0x40)?0:-1;
}

void printPasswordPacket()
{
	printPacket(password_packet);
}