update tools

80211client/README.md

@@ -0,0 +1,3 @@
+说明:使用libpcap编写的非官方校园网802.1x客户端.包括一个libpcap构造发送接收TCP/UDP数据包例子供参考.
+
+参考了https://github.com/liuqun/openwrt-clients/tree/master/scut

80211client/linux/Makefile

@@ -0,0 +1,19 @@
+CC = gcc
+CFLAGS = -g
+OBJECTS = main.o watcher.o
+
+.c.o:
+	$(CC) $(CFLAGS) -c -o $@ $<
+
+all:main
+
+main : $(OBJECTS)
+	gcc -o $@ $^ -lpcap
+
+main.o : main.c
+watcher.o : watcher.c data.h	
+
+clean:
+	rm -f main $(OBJECTS)
+
+.PHONY : clean all

80211client/linux/data.h

@@ -0,0 +1,70 @@
+typedef struct ether_header
+{
+	unsigned char   eh_dst[6]; //目的地址
+	unsigned char   eh_src[6]; //源地址
+	unsigned short  eh_type; //eh_type的值需要考察上一层的协议，如果为ip则为0x0800
+}ether_header;
+
+typedef struct ip_hdr
+{
+	unsigned char       h_verlen; //IP类型为IPv4+ip头部长度（按4字节对齐)
+//	unsigned char       version:4; //一般IP类型为IPv4,4表示4位
+	unsigned char       tos; //服务类型
+	unsigned short      total_len; //总长度（包含IP数据头，TCP数据头以及数据）
+	unsigned short      ident; //识别码,ID定义单独IP,
+	unsigned short      frag_and_flags;//标志位偏移量
+	unsigned char       ttl; //生存时间
+	unsigned char       protocol; //协议类型
+	unsigned short      checksum; //检查和
+	unsigned long        sourceIP; //源IP地址
+	unsigned long        destIP; //目的IP地址
+}ip_header;
+
+
+typedef struct tcp_header
+{
+	unsigned short    th_sport;  //源端口
+	unsigned short    th_dport; //目的端口
+	unsigned int     th_seq; //序列号
+	unsigned int     th_ack; //确认号
+	//0000,0000 00,000010
+	unsigned char    th_lenres; //4 位TCP首部+6位保留的前 4 位
+	unsigned char    th_flag; //6位保留的前后2 位+标志位
+	unsigned short    th_win; //窗口大小
+	unsigned short    th_sum; //检验和
+	unsigned short    th_urp; //紧急指针
+}tcp_header;
+
+typedef struct udp_header
+{
+	uint16_t source;			 /* source port,等价于unsigned short */
+	uint16_t dest;				 /* destination port */
+	uint16_t len;					 /* udp length */
+	uint16_t checkl;			 /* udp checksum */
+}udp_header;
+
+typedef struct psd_header
+{
+	unsigned long    saddr;  //源地址
+	unsigned long    daddr; //目的地址
+	char            mbz; //置空
+	char            ptcl; //协议类型
+	unsigned short    tcpl; //数据包长度
+}psd_header;
+
+#define IPTCPSIZE 58
+
+typedef struct x802_header
+{
+	u_char version;//802.1x版本号
+	u_char type;//eap的类型0--eap,1--eapol
+	u_short len;//eap数据包长度,包括首部
+}x802_header;
+
+typedef struct eap_header
+{
+	u_char code;//request--1,respond--2
+	u_char id;//数据id
+	u_short len;//eap数据包长度,包括首部
+	u_char type;//1--identity,--md5-challenge,3--legacy_Nak
+}eap_header;//大小为6

80211client/linux/main.c

@@ -0,0 +1,30 @@
+#include <stdio.h>
+#include<stdint.h>
+#include <stdlib.h>
+
+#include<unistd.h>
+#include<string.h>
+//#include "data.h"
+/*child function*/
+int auth802x(char *DeviceName);
+
+int main(int argc,char *argv[]){
+	char *DeviceName;
+
+
+	/*check root privilige*/
+	if(getuid()!=0){
+		fprintf(stderr,"Sorry,it is unroot.\n");
+		exit(-1);
+	}
+	if(argc!=2){
+		fprintf(stderr,"Command is Illegal\n");
+		fprintf(stderr,"	%s Interface_Of_Wan\n",argv[0]);
+		exit(-1);
+	}
+	DeviceName = argv[1];
+	printf("%s",DeviceName);
+	auth802x(DeviceName);
+
+	return 0;
+}