_ Git - flowspec-xdp/blob - dropcount.sh

   1 #!/bin/sh
   2 KEY=""
   3 CNT=0
   4 bpftool map dump id "$(bpftool map show | grep drop_cnt_map | awk '{ print $1 }' | tr -d ':')" | while read LINE; do
   5         case "$LINE" in
   6                 "key:") ;;
   7                 "value"*)
   8                         CNT=$(( $CNT + $(echo "$LINE" | awk '{ print "0x" $11 $10 $9 $8 $7 $6 $5 $4 }') ))
   9                         ;;
  10                 "Found "*) ;;
  11                 *)
  12                         if [ "$KEY" != "" ]; then
  13                                 if [ "$KEY" = "0x00000000" ]; then
  14                                         echo "Invalid packet length: $CNT"
  15                                 elif [ "$KEY" = "0x00000001" ]; then
  16                                         echo "Invalid VLAN tag: $CNT"
  17                                 elif [ "$KEY" = "0x00000002" ]; then
  18                                         echo "Invalid/rejected IHL IPv4 field: $CNT"
  19                                 elif [ "$KEY" = "0x00000003" ]; then
  20                                         echo "Rejected IPv6 fragments: $CNT"
  21                                 else
  22                                         echo "$KEY: $CNT"
  23                                 fi
  24                         fi
  25                         KEY=$(echo "$LINE" | awk '{ print "0x" $4 $3 $2 $1 }')
  26                         CNT=0
  27                         ;;
  28         esac
  29 done