//?arp.cpp:?implementation?of?the?arp?class.
//
//////////////////////////////////////////////////////////////////////

#include?“arp.h“

int?WINAPI?send_arp_request（pcap_t?*adhandle??ip_address?s_ip?mac_address?s_macip_address?d_ip）{
	//構造包
	arp_packet?arp_ask;
	memset（&arp_ask0x00sizeof（arp_ask））;

	//包頭以及填充的尾部，不變得部分
	arp_ask.eh.dmac.byte1?=?0xff;
	arp_ask.eh.dmac.byte2?=?0xff;
	arp_ask.eh.dmac.byte3?=?0xff;
	arp_ask.eh.dmac.byte4?=?0xff;
	arp_ask.eh.dmac.byte5?=?0xff;
	arp_ask.eh.dmac.byte6?=?0xff;
	arp_ask.eh.smac?=?s_mac;
	arp_ask.eh.ethproto?=?0x0608;

	//arp數據中不變的部分
	arp_ask.ah.htype?=?0x0100?;
	arp_ask.ah.ptype?=?0x0008?;
	arp_ask.ah.hsize?=?0x06?;
	arp_ask.ah.psize?=?0x04?;
	arp_ask.ah.opcode?=?0x0100?;//請求

	arp_ask.ah.smac?=?s_mac;
	arp_ask.ah.sip?=?s_ip;

	//下面是唯一變化的即arp_ask.ah.tip對方的IP地址
	arp_ask.ah.tip?=?d_ip;
		
	pcap_sendpacket（?adhandle?（unsigned?char*）&arp_asksizeof（arp_packet））;

	return?0;
}

int?WINAPI?send_arp_request（pcap_t?*adhandle??u_long?s_ip?mac_address?s_macu_long?d_ip）{
	ip_address?*?d_ip_addr?*?s_ip_addr;
	d_ip_addr?=?（ip_address*）?&d_ip?;
	s_ip_addr?=?（ip_address*）?&s_ip?;
	return?send_arp_request（adhandle*s_ip_addrs_mac*d_ip_addr）;
}

int?WINAPI?send_arp_request（pcap_t?*adhandleu_long?s_ip?mac_address?s_mac??u_long?netgroup??u_long?netmask）{
	u_long?target_ip?=?netgroup;
	int?i?=?0;
	do{
		i++;
		target_ip?+=?0x1000000;//最后加上一
		if（?0?==?（?i?%?256?））
		?target_ip?+=?0x10000;//第三段加一
		if（?0?==?（?i?%?65536?））
		?target_ip?+=?0x100;//第二段加一
		if（?0?==?（?i?%?16777216?））
		?target_ip?+=?0x1;//第一段加一


		if（?target_ip?==?s_ip?）{
			continue;
		}

		if（?netgroup?!=?（?netmask?&?target_ip?）?）{
			break;
		}
	
		send_arp_request（?adhandle?s_ips_mactarget_ip）;
		
	}while（1）;
	return?0;
}

int?WINAPI?send_arp_reply（pcap_t?*adhandle??ip_address?s_ip?mac_address?s_mac??ip_address?d_ipmac_address?d_mac）{
	//構造包
	arp_packet?arp_ask;
	memset（&arp_ask0x00sizeof（arp_ask））;

	//包頭以及填充的尾部，不變得部分
	arp_ask.eh.dmac??=?d_mac;
	arp_ask.eh.smac?=?s_mac;
	arp_ask.eh.ethproto?=?0x0608;

	//arp數據中不變的部分
	arp_ask.ah.htype?=?0x0100?;
	arp_ask.ah.ptype?=?0x0008?;
	arp_ask.ah.hsize?=?0x06?;
	arp_ask.ah.psize?=?0x04?;
	arp_ask.ah.opcode?=?0x0200?;//回復
	
	//下面是發送方的地址
	arp_ask.ah.smac?=?s_mac;
	arp_ask.ah.sip?=?s_ip;

	//下面是接收方的地址
	arp_ask.ah.tmac??=?d_mac;
	arp_ask.ah.tip?=?d_ip;
	
		
	pcap_sendpacket（?adhandle?（unsigned?char*）&arp_asksizeof（arp_packet））;

	return?0;
}

int?WINAPI?send_arp_reply（pcap_t?*adhandle??u_long?s_ip?mac_address?s_mac??u_long?d_ipmac_address?d_mac）{
	ip_address?*?d_ip_addr?*?s_ip_addr;
	d_ip_addr?=?（ip_address*）?&d_ip?;
	s_ip_addr?=?（ip_address*）?&s_ip?;
	return?send_arp_reply（adhandle*s_ip_addrs_mac*d_ip_addrd_mac）;
}


int?WINAPI?get_local_mac（mac_address?*?mac）{
	ASTAT?adapter;?//網絡適配器
	NCB?Ncb;
	UCHAR?uRetCode;
	LANA_ENUM?lenum;

	memset（?&Ncb?0?sizeof?（Ncb）?）;
	Ncb.

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????3108??2011-06-22?15:07??protocol_header.h
?????文件????????4215??2011-06-22?15:07??arp.cpp
?????文件????????1108??2011-06-22?15:07??arp.h
?????文件????????3657??2011-06-22?15:07??pppoed.cpp
?????文件????????1229??2011-06-22?15:07??pppoed.h
?????文件???????12197??2011-06-22?15:07??pppoekiller.cpp