interface_status_t detect_beat_auto(int fd, char *iface) {
interface_status_t status;
if (cached_detect_beat_func && (status = cached_detect_beat_func(fd, iface)) != IFSTATUS_ERR)
return status;
if ((status = interface_detect_beat_ethtool(fd, iface)) != IFSTATUS_ERR) {
cached_detect_beat_func = interface_detect_beat_ethtool;
daemon_log(LOG_INFO, "Using detection mode: SIOCETHTOOL");
return status;
}
if ((status = interface_detect_beat_mii(fd, iface)) != IFSTATUS_ERR) {
cached_detect_beat_func = interface_detect_beat_mii;
daemon_log(LOG_INFO, "Using detection mode: SIOCGMIIPHY");
return status;
}
if ((status = interface_detect_beat_wlan(fd, iface)) != IFSTATUS_ERR) {
cached_detect_beat_func = interface_detect_beat_wlan;
daemon_log(LOG_INFO, "Using detection mode: wireless extension");
return status;
}
if ((status = interface_detect_beat_iff(fd, iface)) != IFSTATUS_ERR) {
cached_detect_beat_func = interface_detect_beat_iff;
daemon_log(LOG_INFO, "Using detection mode: IFF_RUNNING");
return status;
}
return IFSTATUS_ERR;
}
int report_link_state(const char* iface) {
int fd, r = 0;
interface_status_t s;
if ((fd = socket(PF_INET, SOCK_DGRAM, 0)) < 0) {
printf("Socket create failed\n");
return -1;
}
/* here just to make it more convenient for testing:if we define DEBUG,so a plugin-out and plugin-in event
* will be detected if we do "ifconfig interface-name down" and ifconfig interface-name up".Otherwise,
* if we do not define DEBUG, a plugin-in and plugin-out event can only be detected when the local link
* plugin in and out. Skip this comment if you did not catch it.
*/
/* #define DEBUG*/
#if 0
if ((s = interface_detect_beat_ethtool(fd, iface)) == IFSTATUS_ERR) {
printf(" SIOCETHTOOL failed (%s)\n", strerror(errno));
close(fd);
return -1;
}
#else
if ((s = interface_detect_beat_iff(fd,iface)) == IFSTATUS_ERR) {
printf(" IFF_RUNNING failed (%s)\n", strerror(errno));
close(fd);
return -1;
}
#endif
switch(s) {
case IFSTATUS_UP:
/* link beat detected */
r = 1;
break;
case IFSTATUS_DOWN:
/* unplugged */
r = 2;
break;
default:
/* not supported (Retry as root?)*/
r = -1;
break;
}
close(fd);
return r;
}
int handle(char *iface) {
int fd, r = 0;
interface_status_t s;
if ((fd = socket(PF_INET, SOCK_DGRAM, 0)) < 0)
return -1;
if (verbose > 0) {
printf("%s:\n", iface);
if ((s = interface_detect_beat_ethtool(fd, iface)) == IFSTATUS_ERR)
printf(" SIOCETHTOOL failed (%s)\n", strerror(errno));
else
printf(" SIOCETHTOOL: %s\n", s == IFSTATUS_UP ? "link beat detected" : "unplugged");
if ((s = interface_detect_beat_mii(fd, iface)) == IFSTATUS_ERR)
printf(" SIOCGMIIPHY failed (%s)\n", strerror(errno));
else
printf(" SIOCGMIIPHY: %s\n", s == IFSTATUS_UP ? "link beat detected" : "unplugged");
if ((s = interface_detect_beat_wlan(fd, iface)) == IFSTATUS_ERR)
printf(" Wireless failed.\n");
else
printf(" Wireless: %s\n", s == IFSTATUS_UP ? "link beat detected" : "unplugged");
if ((s = interface_detect_beat_iff(fd, iface)) == IFSTATUS_ERR)
printf(" IFF_RUNNING failed.\n");
else
printf(" IFF_RUNNING: %s\n", s == IFSTATUS_UP ? "link beat detected" : "unplugged");
if ((s = interface_detect_beat_priv(fd, iface)) == IFSTATUS_ERR)
printf(" SIOCDEVPRIVATE failed (%s)\n", strerror(errno));
else
printf(" SIOCDEVPRIVATE: %s\n", s == IFSTATUS_UP ? "link beat detected" : "unplugged");
} else {
if ((s = interface_detect_beat_ethtool(fd, iface)) == IFSTATUS_ERR)
if ((s = interface_detect_beat_mii(fd, iface)) == IFSTATUS_ERR)
if ((s = interface_detect_beat_wlan(fd, iface)) == IFSTATUS_ERR)
s = interface_detect_beat_iff(fd, iface);
switch(s) {
case IFSTATUS_UP:
if (!verbose)
printf("%s: link beat detected\n", iface);
r = 1;
break;
case IFSTATUS_DOWN:
if (!verbose)
printf("%s: unplugged\n", iface);
r = 2;
break;
default:
if (!verbose)
printf("%s: not supported%s\n", iface, getuid() != 0 ? " (Retry as root?)" : "");
r = -1;
break;
}
}
close(fd);
return r;
}
//检测网卡的连接状态，rLinkStatus = 1,连接正常，rLinkStatus = 0,连接不正常
int Test_NetCard::Check_EthLinkStatus(const char* eth_name , int& rLinkStatus )
{
FILE *fp = NULL;
interface_status_t status;
char buf[512] = {'\0'};
char hw_name[10] = {'\0'};
//char *token = NULL;
if ( eth_name == NULL )
{
return -1;
}
strcpy( hw_name , eth_name );
//方法一：查看一个文件，相对来说比较简单
#if 0
char carrier_path[512] = {'\0'};
memset(buf, 0, sizeof(buf));
snprintf(carrier_path, sizeof(carrier_path), "/sys/class/net/%s/carrier", hw_name);
if ((fp = fopen(carrier_path, "r")) != NULL)
{
while (fgets(buf, sizeof(buf), fp) != NULL)
{
if (buf[0] == '0')
{
status = IFSTATUS_DOWN;
}
else
{
status = IFSTATUS_UP;
}
}
}
else
{
perror("Open carrier ");
return -1;
}
fclose(fp);
#endif
//方法二：用函数吧！有点复杂，但是也是一种有效的办法
#if 1
int fd = -1;
if((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
{
perror("socket ");
return -70;
//exit(0);
}
status = interface_detect_beat_ethtool(fd, hw_name);
close(fd);
#endif
switch ( status )
{
case IFSTATUS_UP:
rLinkStatus = 1;
//printf("%s : link up\n", hw_name);
break;
case IFSTATUS_DOWN:
rLinkStatus = 0;
//printf("%s : link down\n", hw_name);
break;
default:
rLinkStatus = 0;
//printf("Detect Error\n");
return -1;
break;
}
return 0;
}
