嵌入式 hi3518平台指定网卡测试是否通外网

/********************************** (C) COPYRIGHT *******************************
  * File Name		   : netstatus_check.c
  * Author	           : skdkjzz
  * Date	           : 2014/08/07
  * Description 	   : 检测本机是否连通外部网络（Joseph_Ping 百度）。
  *********************************************************************************/
  
#include <stdio.h>  
#include <string.h>
#include <stdlib.h> 
#include <sys/socket.h>   
#include <netinet/in.h>   
#include <netinet/ip.h>   
#include <netinet/ip_icmp.h>   
#include <netdb.h>  
#include <errno.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <sys/types.h>  
#include <string.h>  
#include <stdlib.h>  
#include <sys/types.h>  
#include <sys/ioctl.h>  
#include <sys/stat.h>  
#include <stdio.h>  
#include <string.h>  
#include <errno.h>  
#include <net/if.h>  
#include <sys/utsname.h>  
#include <limits.h>  
#include <ctype.h>     
#include <sys/socket.h>  
#include <netinet/in.h>  
#include <arpa/inet.h>     
#include <linux/sockios.h> 


#define PACKET_SIZE     4096   
#define ERROR           -1   
#define SUCCESS         0   
	
/*效验算法*/ 
unsigned short Joseph_Cal_Chksum(unsigned short *addr, int len)	
{  
	int nleft=len;  
	int sum=0;  
	unsigned short *w=addr;  
	unsigned short answer=0;	

	while(nleft > 1)	
	{  
	  sum += *w++;	
	  nleft -= 2;  
	}  

	if( nleft == 1)  
	{ 		
	  *(unsigned char *)(&answer) = *(unsigned char *)w;  
	  sum += answer;  
	}  

	sum = (sum >> 16) + (sum & 0xffff);  
	sum += (sum >> 16);  
	answer = ~sum;  

	return answer;  
}  

int Joseph_Ping( char *ips,char *srcip , int timeout)    /* Ping函数 */  
{ 	   
	struct timeval *tval; 		 
	int maxfds = 0;	 
	fd_set readfds;	 

	struct sockaddr_in addr;	  
	struct sockaddr_in from;
	struct ifreq ifr;
	bzero(&addr,sizeof(addr));	/* 设定Ip信息 */  
	addr.sin_family = AF_INET;	
	addr.sin_addr.s_addr = inet_addr(ips);	

	int sockfd;	 
	sockfd = socket(AF_INET, SOCK_RAW, IPPROTO_ICMP);   /* 取得socket */	 
	if (sockfd < 0)	 
	{    
	  printf("ip:%s,socket error\n",ips);	 
	  return ERROR;    
	}    

	struct timeval timeo;
	timeo.tv_sec = timeout / 1000;	/* 设定TimeOut时间	*/
	timeo.tv_usec = timeout % 1000;	 

#if 0
	/*set src ip*/
	bzero(&from,sizeof(from));	/* 设定Ip信息 */
	from.sin_family = AF_INET;	
	from.sin_addr.s_addr = inet_addr(srcip);	

	if (setsockopt(sockfd, IPPROTO_IP, IP_MULTICAST_IF,(struct sockaddr *)&from, sizeof(from)) == -1)    
	{    
	  printf("ip:%s,setsockopt error \n",srcip);	 
	  return ERROR;
	}  
	bind(sockfd,(struct sockaddr *)&addr, sizeof(addr));
#else
	strcpy(ifr.ifr_name, srcip);

	if (setsockopt(sockfd, SOL_SOCKET, SO_BINDTODEVICE, &ifr, sizeof(ifr)) == -1)
	{
		printf("can't bind to interface %s\n",ifr.ifr_name);
	}
	
#endif

	printf("%s %d\n",__FUNCTION__,__LINE__);

	if (setsockopt(sockfd, SOL_SOCKET, SO_SNDTIMEO, &timeo, sizeof(timeo)) == -1)    
	{    
	  printf("ip:%s,setsockopt error\n",ips);	 
	  return ERROR;    
	}
	else
	{
		printf("ip:%s,setsockopt ok \n",ips);  
	}

	char sendpacket[PACKET_SIZE];    
	char recvpacket[PACKET_SIZE];    

	memset(sendpacket, 0, sizeof(sendpacket));   /* 设定Ping包 */ 	
	pid_t pid;	

	pid=getpid(); 	/* 取得PID，作为Ping的Sequence ID */   
	struct ip *iph;	 
	struct icmp *icmp;	
		
	icmp=(struct icmp*)sendpacket; 

	icmp->icmp_type=ICMP_ECHO;   /* 回显请求 */	
	icmp->icmp_code=0;	
	icmp->icmp_cksum=0;	 
	icmp->icmp_seq=0;    
	icmp->icmp_id=pid;   
	tval= (struct timeval *)icmp->icmp_data;	  
	gettimeofday(tval,NULL);	  
	icmp->icmp_cksum=Joseph_Cal_Chksum((unsigned short *)icmp,sizeof(struct icmp));	/* 校验 */	

	int n;	/* 发包  */ 	
	n = sendto(sockfd, (char *)&sendpacket, sizeof(struct icmp), 0, (struct sockaddr *)&addr, sizeof(addr));	  
	if (n < 1)	
	{    
	  printf("ip:%s,sendto error\n",ips);	 
	  return ERROR;    
	} 	 
	   
	while(1)	  /* 接受 由于可能接受到其他Ping的应答消息，所以这里要用循环 */  
	{    
	  FD_ZERO(&readfds);	/* 设定TimeOut时间，这次才是真正起作用的  */ 
	  FD_SET(sockfd, &readfds);    
	  maxfds = sockfd + 1;	  
	  n = select(maxfds, &readfds, NULL, NULL, &timeo);    
	  if (n <= 0)	 
	  {    
		  printf("ip:%s,Time out error\n",ips);    
		  close(sockfd);	
		  return ERROR;    
	  }    
		
	  memset(recvpacket, 0, sizeof(recvpacket));	
	  int fromlen = sizeof(from);	   /* 接受	*/ 
	  n = recvfrom(sockfd, recvpacket, sizeof(recvpacket), 0, (struct sockaddr *)&from, (socklen_t *)&fromlen);    
	  if (n < 1) {
	  	
		  return ERROR;	
	  }    
			
	  char *from_ip = (char *)inet_ntoa(from.sin_addr); 	 
	  if (strcmp(from_ip,ips) != 0)    /* 判断是否是自己Ping的回复 */  
	  {    
		  printf("Now Pingip:%s Fromip:%s\n Now Pingip is not same to Fromip,so Joseph_Ping wrong!\n",ips,from_ip);	 
		  return ERROR; 
	  }    
		
	  iph = (struct ip *)recvpacket;		
	  icmp=(struct icmp *)(recvpacket + (iph->ip_hl<<2));	 
		   

	  if (icmp->icmp_type == ICMP_ECHOREPLY && icmp->icmp_id == pid)   /* 判断Ping回复包的状态 ICMP_ECHOREPLY回显应答 */	
	  {
		  return SUCCESS;
	  }   /* 正常退出循环 */	 
	  else		 
		  continue;    /* 否则继续等  */	 
	}

	return 0;
}
  
int main(int argc ,char *argv[])  
{  
	int Qy_Ret = 0;
	struct hostent *h=NULL;
	char hostname[16]="www.baidu.com";

	char aPing[16]="202.108.22.5";	/* Joseph_Ping form ip  */
 	Qy_Ret = Joseph_Ping(aPing,argv[1],3000);
	printf("Qy_Ret is %d\n",Qy_Ret);
	if(Qy_Ret == 0)  
	{  
		printf("Network is Ok!\n"); 
		return 0;
	}  
	else	
	{  
		printf("Network is Bad!\n");
		return -1;
	}
	
	sprintf(hostname,"%s",(char *)inet_ntoa(*((struct in_addr *)h->h_addr))); /* Joseph_Ping form hostname */
	if(Joseph_Ping(hostname,argv[1],3000))  
	{  
		printf("Network is Ok!\n");  
		return 0;
	}  
	else	
	{  
		printf("Network is Bad!\n"); 
		return -1;
	} 	
}

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