tools/testing/selftests/net/test_ingress_egress_chaining.sh

Source file repositories/reference/linux-study-clean/tools/testing/selftests/net/test_ingress_egress_chaining.sh

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/net/test_ingress_egress_chaining.sh
Extension
.sh
Size
2193 bytes
Lines
80
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: tools
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

function fail() {
	echo "FAIL: $@" >> /dev/stderr
	exit 1
}

function cleanup() {
	killall -q -9 udpgso_bench_rx
	ip link del $veth1 &> /dev/null
	ip link del $veth2 &> /dev/null
	ip netns del $ns &> /dev/null
}
trap cleanup EXIT

function config() {
	echo "Setup veth pairs [$veth1, $peer1], and veth pair [$veth2, $peer2]"
	ip link add $veth1 type veth peer name $peer1
	ip link add $veth2 type veth peer name $peer2
	ip addr add $ip_peer1/24 dev $peer1
	ip link set $peer1 up
	ip netns add $ns
	ip link set dev $peer2 netns $ns
	ip netns exec $ns ip addr add $ip_peer2/24 dev $peer2
	ip netns exec $ns ip link set $peer2 up
	ip link set $veth1 up
	ip link set $veth2 up

	echo "Add tc filter ingress->egress forwarding $veth1 <-> $veth2"
	tc qdisc add dev $veth2 ingress
	tc qdisc add dev $veth1 ingress
	tc filter add dev $veth2 ingress prio 1 proto all flower \
		action mirred egress redirect dev $veth1
	tc filter add dev $veth1 ingress prio 1 proto all flower \
		action mirred egress redirect dev $veth2

	echo "Add tc filter egress->ingress forwarding $peer1 -> $veth1, bypassing the veth pipe"
	tc qdisc add dev $peer1 clsact
	tc filter add dev $peer1 egress prio 20 proto ip flower \
		action mirred ingress redirect dev $veth1
}

function test_run() {
	echo "Run tcp traffic"
	./udpgso_bench_rx -t &
	sleep 1
	ip netns exec $ns timeout -k 2 10 ./udpgso_bench_tx -t -l 2 -4 -D $ip_peer1 || fail "traffic failed"
	echo "Test passed"
}

config
test_run
trap - EXIT
cleanup

Annotation

Implementation Notes