LXR linux/tools/testing/selftests/net/reuseaddr_ports

   1#!/bin/bash
   2# SPDX-License-Identifier: GPL-2.0
   3#
   4# Run tests when all ephemeral ports are exhausted.
   5#
   6# Author: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
   7
   8set +x
   9set -e
  10
  11readonly NETNS="ns-$(mktemp -u XXXXXX)"
  12
  13setup() {
  14        ip netns add "${NETNS}"
  15        ip -netns "${NETNS}" link set lo up
  16        ip netns exec "${NETNS}" \
  17                sysctl -w net.ipv4.ip_local_port_range="32768 32768" \
  18                > /dev/null 2>&1
  19        ip netns exec "${NETNS}" \
  20                sysctl -w net.ipv4.ip_autobind_reuse=1 > /dev/null 2>&1
  21}
  22
  23cleanup() {
  24        ip netns del "${NETNS}"
  25}
  26
  27trap cleanup EXIT
  28setup
  29
  30do_test() {
  31        ip netns exec "${NETNS}" ./reuseaddr_ports_exhausted
  32}
  33
  34do_test
  35echo "tests done"
  36