name : reuseaddr_ports_exhausted.sh #!/bin/bash # SPDX-License-Identifier: GPL-2.0 # # Run tests when all ephemeral ports are exhausted. # # Author: Kuniyuki Iwashima <kuniyu@amazon.co.jp> set +x set -e readonly NETNS="ns-$(mktemp -u XXXXXX)" setup() { ip netns add "${NETNS}" ip -netns "${NETNS}" link set lo up ip netns exec "${NETNS}" \ sysctl -w net.ipv4.ip_local_port_range="32768 32768" \ > /dev/null 2>&1 ip netns exec "${NETNS}" \ sysctl -w net.ipv4.ip_autobind_reuse=1 > /dev/null 2>&1 } cleanup() { ip netns del "${NETNS}" } trap cleanup EXIT setup do_test() { ip netns exec "${NETNS}" ./reuseaddr_ports_exhausted } do_test echo "tests done"