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