Attachment 10129 Details for Bug 49837

Testcase

49837-dhcp-tests.sh (text/plain), 3.61 KB, created by Philipp Hahn on 2019-07-22 17:33 CEST

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Creator: Philipp Hahn

Created: 2019-07-22 17:33 CEST

Size: 3.61 KB

patch

obsolete

>#!/bin/bash
>#
># <https://forge.univention.org/bugzilla/show_bug.cgi?id=49837>
># <https://hutten.knut.univention.de/mediawiki/index.php/Philipp_memo/DHCP>
>#
># shellcheck disable=SC2034
>
>#set -e -u # -o pipefail
>export LANG=C LC_ALL=C
>
>main () {
>	setup_ucs
>	setup_interface 1
>	main1="$main" guest1="$guest"
>	setup_interface 2
>	main2="$main" guest2="$guest"
>	setup_dhcp 1
>	subnet1="$subnet" gw1="$gw" host1="$host"
>	setup_dhcp 2
>	subnet2="$subnet" gw2="$gw" host2="$host"
>	wait_dhcp_restart
>	test_guest 1
>	test_guest 2
>	# bash -i
>	teardown_dhcp 1
>	teardown_dhcp 2
>	teardown_interface 1
>	teardown_interface 2
>}
>
>
>setup_ucs () {
>	apt-get -qq install univention-dhcp ethtool
>
>	if [ -z "${tmp:-}" ]
>	then
>		tmp=$(mktemp -d)
>		# shellcheck disable=SC2064
>		trap "rm -rf '$tmp'" EXIT
>		lease="${tmp}/dhclient.lease"
>		pid="${tmp}/pid"
>	fi
>
>	NET1='192.0.2'  # .0/24 # "TEST-NET-1"
>	NET2='198.51.100'  # .0/24 # "TEST-NET-2"
>}
>
>setup_interface () {
>	[ -e "/sys/class/net/veth${1}-main" ] && return
>	ip link add name "veth${1}-main" type veth peer name "veth${1}-guest"
>	main=$(<"/sys/class/net/veth${1}-main/address")
>	[ -n "$main" ]
>	guest=$(<"/sys/class/net/veth${1}-guest/address")
>	[ -n "$guest" ]
>	local NET="NET${1}"
>	ip addr add "${!NET}.1/24" dev "veth${1}-main"
>	ip link set "veth${1}-main" up
>
>	ethtool -K "veth${1}-main" tx off >/dev/null
>	ethtool -K "veth${1}-guest" tx off >/dev/null
>
>	ip netns add "my-env${1}"
>	ip link set dev "veth${1}-guest" netns "my-env${1}" name eth0
>	ip netns exec "my-env${1}" ip addr flush eth0
>	ip netns exec "my-env${1}" ip link set eth0 up
>}
>
>setup_dhcp () {
>	service=$(udm dhcp/service list|DN1)
>	[ -n "$service" ] || die service
>
>	local NET="NET${1}"
>	udm policies/dhcp_routing create --ignore_exists --set name="gw${1}" --set routers="${!NET}.0"
>	gw=$(udm policies/dhcp_routing list --filter name="gw${1}"|DN1)
>
>	udm dhcp/subnet create --ignore_exists --superordinate="$service" --set subnet="${!NET}.0" --set subnetmask="24" --policy-reference "$gw"
>	subnet=$(udm dhcp/subnet list --superordinate="$service" --filter subnet="${!NET}.0"|DN1)
>	[ -n "$subnet" ] || die subnet
>
>	local guest="guest${1}"
>	udm dhcp/host create --superordinate="$service" --set hwaddress="ethernet ${!guest}" --set host="${!guest}" --set fixedaddress="${!NET}.50"
>	host=$(udm dhcp/host list --superordinate="$service" --filter host="${!guest}"|DN1)
>	[ -n "$host" ] || die host
>}
>
>wait_dhcp_restart () {
>	local i oldpid
>	oldpid=$(</var/run/dhcpd.pid)
>	for ((i=20;i>0;i+=-1))
>	do
>		sleep 1
>		[ "$oldpid" -eq "$(</var/run/dhcpd.pid)" ] || break
>		printf '%d ' "$i"
>	done
>	echo "dhcpd.pid: $oldpid -> $(</var/run/dhcpd.pid)"
>}
>
>test_guest () {
>	local NET="NET${1}" host="host${1}"
>	: >"$lease" 2>"$pid"
>	ip netns exec "my-env${1}" dhclient -1 -pf "$pid" -sf /bin/true -lf "$lease" -q -4 eth0
>	grep --color -F -e "  fixed-address ${!NET}.50" "$lease"
>	grep --color -F -e "  option dhcp-server-identifier ${!NET}.1;" "$lease"
>	grep --color -F -e "  option routers ${!NET}.0;" "$lease"
>	ip netns exec "my-env${1}" dhclient -1 -pf "$pid" -sf /bin/true -lf "$lease" -q -r -4 eth0
>	udm dhcp/host list --policies 0 --position "${!host}"
>	echo
>}
>
>
>teardown_dhcp () {
>	local subnet="subnet${1}"
>	udm dhcp/subnet remove --superordinate "$service" --dn "${!subnet}"
>	local host="host${1}"
>	udm dhcp/host remove --superordinate "$service" --dn "${!host}"
>	local gw="gw${1}"
>	udm policies/dhcp_routing remove --dn "${!gw}"
>}
>
>
>teardown_interface () {
>	ip link del dev "veth${1}-main"
>	ip netns del "my-env${1}"
>}
>
>
>die () {
>	echo "${0##*/}: $*" >&2
>	exit 1
>}
>DN1 () {
>	sed -ne 's/^DN: //p;T;q'
>}
>udm () {
>	local module="$1" action="$2"
>	shift 2
>	/usr/sbin/udm "$module" "$action" "$@"
>}
>
>main "$@"

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Attachments on bug 49837: 10129