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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2018 Facebook
# Copyright (c) 2019 Cloudflare
set -eu
readonly NS1="ns1-$(mktemp -u XXXXXX)"
wait_for_ip()
{
local _i
printf "Wait for IP %s to become available " "$1"
for _i in $(seq ${MAX_PING_TRIES}); do
printf "."
if ns1_exec ping -c 1 -W 1 "$1" >/dev/null 2>&1; then
echo " OK"
return
fi
sleep 1
done
echo 1>&2 "ERROR: Timeout waiting for test IP to become available."
exit 1
}
get_prog_id()
{
awk '/ id / {sub(/.* id /, "", $0); print($1)}'
}
ns1_exec()
{
ip netns exec ${NS1} "$@"
}
setup()
{
ip netns add ${NS1}
ns1_exec ip link set lo up
ns1_exec sysctl -w net.ipv4.tcp_syncookies=2
ns1_exec sysctl -w net.ipv4.tcp_window_scaling=0
ns1_exec sysctl -w net.ipv4.tcp_timestamps=0
ns1_exec sysctl -w net.ipv4.tcp_sack=0
wait_for_ip 127.0.0.1
wait_for_ip ::1
}
cleanup()
{
ip netns del ns1 2>/dev/null || :
}
main()
{
trap cleanup EXIT 2 3 6 15
setup
printf "Testing clsact..."
ns1_exec tc qdisc add dev "${TEST_IF}" clsact
ns1_exec tc filter add dev "${TEST_IF}" ingress \
bpf obj "${BPF_PROG_OBJ}" sec "${CLSACT_SECTION}" da
BPF_PROG_ID=$(ns1_exec tc filter show dev "${TEST_IF}" ingress | \
get_prog_id)
ns1_exec "${PROG}" "${BPF_PROG_ID}"
ns1_exec tc qdisc del dev "${TEST_IF}" clsact
printf "Testing XDP..."
ns1_exec ip link set "${TEST_IF}" xdp \
object "${BPF_PROG_OBJ}" section "${XDP_SECTION}"
BPF_PROG_ID=$(ns1_exec ip link show "${TEST_IF}" | get_prog_id)
ns1_exec "${PROG}" "${BPF_PROG_ID}"
}
DIR=$(dirname $0)
TEST_IF=lo
MAX_PING_TRIES=5
BPF_PROG_OBJ="${DIR}/test_tcp_check_syncookie_kern.bpf.o"
CLSACT_SECTION="tc"
XDP_SECTION="xdp"
BPF_PROG_ID=0
PROG="${DIR}/test_tcp_check_syncookie_user"
main
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