samples/bpf: Fix tc and ip paths in xdp2skb_meta.sh
The below path error can occur:
# ./xdp2skb_meta.sh --dev eth0 --list
./xdp2skb_meta.sh: line 61: /usr/sbin/tc: No such file or directory
So just use command names instead of absolute paths of tc and ip.
In addition, it allow callers to redefine $TC and $IP paths
Fixes: 36e04a2d78d9 ("samples/bpf: xdp2skb_meta shows transferring info from XDP to SKB")
Reviewed-by: Jesper Dangaard Brouer <[email protected]>
Signed-off-by: Taeung Song <[email protected]>
Acked-by: Jesper Dangaard Brouer <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
diff --git a/samples/bpf/xdp2skb_meta.sh b/samples/bpf/xdp2skb_meta.sh
index b9c9549..4bde9d0 100755
--- a/samples/bpf/xdp2skb_meta.sh
+++ b/samples/bpf/xdp2skb_meta.sh
@@ -16,8 +16,8 @@
BPF_FILE=xdp2skb_meta_kern.o
DIR=$(dirname $0)
-export TC=/usr/sbin/tc
-export IP=/usr/sbin/ip
+[ -z "$TC" ] && TC=tc
+[ -z "$IP" ] && IP=ip
function usage() {
echo ""
@@ -53,7 +53,7 @@
local allow_fail="$2"
shift 2
if [[ -n "$VERBOSE" ]]; then
- echo "$(basename $cmd) $@"
+ echo "$cmd $@"
fi
if [[ -n "$DRYRUN" ]]; then
return
