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Improve drop count printing
author
Matt Corallo
<git@bluematt.me>
Sun, 4 Apr 2021 16:46:28 +0000
(12:46 -0400)
committer
Matt Corallo
<git@bluematt.me>
Sun, 4 Apr 2021 16:46:41 +0000
(12:46 -0400)
dropcount.sh
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diff --git
a/dropcount.sh
b/dropcount.sh
index f67abf7251fb0c52c050272e26005923f949f4f7..3cfc4ab922c4bba79a3074104aa34a7560ffaf38 100755
(executable)
--- a/
dropcount.sh
+++ b/
dropcount.sh
@@
-10,7
+10,17
@@
bpftool map dump id "$(bpftool map show | grep drop_cnt_map | awk '{ print $1 }'
"Found "*) ;;
*)
if [ "$KEY" != "" ]; then
"Found "*) ;;
*)
if [ "$KEY" != "" ]; then
- echo "$KEY: $CNT"
+ if [ "$KEY" = "0x00000000" ]; then
+ echo "Invalid packet length: $CNT"
+ elif [ "$KEY" = "0x00000001" ]; then
+ echo "Invalid VLAN tag: $CNT"
+ elif [ "$KEY" = "0x00000002" ]; then
+ echo "Invalid/rejected IHL IPv4 field: $CNT"
+ elif [ "$KEY" = "0x00000003" ]; then
+ echo "Rejected IPv6 fragments: $CNT"
+ else
+ echo "$KEY: $CNT"
+ fi
fi
KEY=$(echo "$LINE" | awk '{ print "0x" $4 $3 $2 $1 }')
CNT=0
fi
KEY=$(echo "$LINE" | awk '{ print "0x" $4 $3 $2 $1 }')
CNT=0