1#!/bin/sh 2# SPDX-License-Identifier: GPL-2.0 3# 4# Run a couple of IP defragmentation tests. 5 6set +x 7set -e 8 9readonly NETNS="ns-$(mktemp -u XXXXXX)" 10 11setup() { 12 ip netns add "${NETNS}" 13 ip -netns "${NETNS}" link set lo up 14 15 ip netns exec "${NETNS}" sysctl -w net.ipv4.ipfrag_high_thresh=9000000 >/dev/null 2>&1 16 ip netns exec "${NETNS}" sysctl -w net.ipv4.ipfrag_low_thresh=7000000 >/dev/null 2>&1 17 ip netns exec "${NETNS}" sysctl -w net.ipv4.ipfrag_time=1 >/dev/null 2>&1 18 19 ip netns exec "${NETNS}" sysctl -w net.ipv6.ip6frag_high_thresh=9000000 >/dev/null 2>&1 20 ip netns exec "${NETNS}" sysctl -w net.ipv6.ip6frag_low_thresh=7000000 >/dev/null 2>&1 21 ip netns exec "${NETNS}" sysctl -w net.ipv6.ip6frag_time=1 >/dev/null 2>&1 22 23 # DST cache can get full with a lot of frags, with GC not keeping up with the test. 24 ip netns exec "${NETNS}" sysctl -w net.ipv6.route.max_size=65536 >/dev/null 2>&1 25} 26 27cleanup() { 28 ip netns del "${NETNS}" 29} 30 31trap cleanup EXIT 32setup 33 34echo "ipv4 defrag" 35ip netns exec "${NETNS}" ./ip_defrag -4 36 37echo "ipv4 defrag with overlaps" 38ip netns exec "${NETNS}" ./ip_defrag -4o 39 40echo "ipv6 defrag" 41ip netns exec "${NETNS}" ./ip_defrag -6 42 43echo "ipv6 defrag with overlaps" 44ip netns exec "${NETNS}" ./ip_defrag -6o 45 46echo "all tests done" 47