l2fw/ethstat at master · akhepcat/l2fw · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
#!/bin/bash

for device in `find -L /sys/class/net/ -maxdepth 3 -name carrier 2>/dev/null | sort`
do
  # device = /sys/class/net/vmnet8/carrier
  #
  # enabled == /sys/class/net/eth0/operstate==1?yes:no
  # link  == $enabled && /sys/class/net/vmnet8/carrier==1?yes:no

  mydev=$( dirname ${device} | cut -f 5 -d/ )

  type=$(cat /sys/class/net/${mydev}/type)
  if [ ${type} -eq 1 ];
  then
    flags=$( cat /sys/class/net/${mydev}/flags | cut -f 2 -dx | rev | cut -b 1 )
    if [ ${flags} -ge 2 ];
    then
         flags=$((flags - 2))
    fi

    echo -n "${mydev} is "
    if [ ${flags} -eq 1 ];
    then
        echo -n "enabled, "
        link=$(cat ${device} )

        if [ ${link} -eq 0 ];
        then
            echo -n "no "
        fi
        echo "link detected"
    else
        echo "disabled"
    fi

  elif [ ${type} -eq 772 ];
  then
      #oper=$(cat /sys/class/net/${mydev}/operstate)
      #if [ ${oper} = "up" -o ${oper} = "unknown" ];
      link=$(cat /sys/class/net/${mydev}/carrier)
      if [ ${link} -eq 1 ];
      then
         echo "${mydev} is enabled"
      else
         echo "${mydev} is not enabled"
      fi
  fi
done