#!/bin/sh
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set -eu
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ping_once()
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{
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type ping${1} >/dev/null 2>&1 && PING="ping${1}" || PING="ping -${1}"
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$PING -q -c 1 -W 1 ${2%%/*} >/dev/null 2>&1
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}
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wait_for_ip()
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{
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local _i
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echo -n "Wait for testing IPv4/IPv6 to become available "
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for _i in $(seq ${MAX_PING_TRIES}); do
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echo -n "."
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if ping_once 4 ${TEST_IPv4} && ping_once 6 ${TEST_IPv6}; then
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echo " OK"
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return
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fi
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done
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echo 1>&2 "ERROR: Timeout waiting for test IP to become available."
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exit 1
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}
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setup()
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{
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# Create testing interfaces not to interfere with current environment.
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ip link add dev ${TEST_IF} type veth peer name ${TEST_IF_PEER}
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ip link set ${TEST_IF} up
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ip link set ${TEST_IF_PEER} up
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ip -4 addr add ${TEST_IPv4} dev ${TEST_IF}
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ip -6 addr add ${TEST_IPv6} dev ${TEST_IF}
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wait_for_ip
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}
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cleanup()
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{
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ip link del ${TEST_IF} 2>/dev/null || :
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ip link del ${TEST_IF_PEER} 2>/dev/null || :
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}
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main()
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{
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trap cleanup EXIT 2 3 6 15
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setup
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./test_sock_addr setup_done
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}
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BASENAME=$(basename $0 .sh)
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TEST_IF="${BASENAME}1"
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TEST_IF_PEER="${BASENAME}2"
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TEST_IPv4="127.0.0.4/8"
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TEST_IPv6="::6/128"
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MAX_PING_TRIES=5
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main
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