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#!/bin/ksh
# $Id: vxlan_2.sh,v 1.2 2016/11/30 22:21:20 vgross Exp $
CAPFILE=$(mktemp -t regress_vxlan.XXXXXXX)
CURDIR=$(cd $(dirname $0); pwd)
cleanup() {
for ifname in $CLEANUP_IFS; do
$SUDO ifconfig $ifname down
done
for ifname in $CLEANUP_IFS; do
$SUDO ifconfig $ifname destroy
done
rm $CAPFILE
}
do_ping()
{
local source="$1"
local dest="${VXLAN_NETID}${2}"
$PING -q -c 3 -w 1 -V "$source" "$dest" | grep -q ' 0.0% packet loss' && return
echo "Failed to ping $dest from vstack $source"
STATUS=1
}
cross_ping() {
local tcpdump_expr='udp src port 4789 and dst port 4789 and (ether multicast or ip multicast)'
local nomcast=
[[ $1 == nomcast ]] && nomcast=1 && shift
echo "cross_ping: vstacks=$@, ping=$PING, nomcast=$nomcast"
while [[ $# -gt 1 ]]; do
local source=$1 ; shift
:> $CAPFILE
if [[ -n $nomcast ]]; then
$SUDO tcpdump -i pair${source}0 -n -s 512 -w $CAPFILE "$tcpdump_expr" 2> /dev/null &
while ! [[ -s $CAPFILE ]]; do :; done
fi
for target in $@ ; do
do_ping $source $target
done
sleep 1
if [[ -n $nomcast ]]; then
$SUDO pkill -f "tcpdump -i pair${source}0 -n"
wait
if $SUDO tcpdump -s 512 -nr $CAPFILE | grep '.'; then
echo "Multicast traffic detected when pinging from rdomain $1"
STATUS=1
fi
fi
done
}
test_inet6()
{
VXLAN_NETID="fd42::"
PING=ping6
for vstack in "$@"; do
$SUDO ifconfig "vxlan$vstack" inet6 "${VXLAN_NETID}${vstack}/64"
done
sleep 2 # sleep off DAD
cross_ping "$@"
[[ -n $DYNAMIC ]] && cross_ping ${DYNAMIC:+nomcast} "$@"
for vstack in "$@"; do
$SUDO ifconfig "vxlan$vstack" inet6 "${VXLAN_NETID}${vstack}/64" delete
done
}
test_inet()
{
VXLAN_NETID="10.42.0."
PING=ping
for vstack in "$@"; do
$SUDO ifconfig "vxlan$vstack" inet "${VXLAN_NETID}${vstack}/24"
done
cross_ping "$@"
[[ -n $DYNAMIC ]] && cross_ping ${DYNAMIC:+nomcast} "$@"
for vstack in "$@"; do
$SUDO ifconfig "vxlan$vstack" inet "${VXLAN_NETID}${vstack}/24" delete
done
}
vstack_add() {
local vstack=$1
local vstack_pairname="pair${vstack}0"
local vstack_tunsrc="${PAIR_NETID}${vstack}"
[[ $AF == inet6 ]] && tundst_sufx="%${vstack_pairname}"
for ifname in "$vstack_pairname" "vxlan$vstack" "bridge$vstack"; do
iface_exists $ifname && abort_test "interface $ifname already exists"
CLEANUP_IFS="$ifname $CLEANUP_IFS"
done
$SUDO ifconfig "$vstack_pairname" rdomain "$vstack" $IFCONFIG_OPTS
$SUDO ifconfig "$vstack_pairname" "$AF" "${vstack_tunsrc}${PAIR_PREFX}" up
$SUDO ifconfig "vxlan$vstack" rdomain "$vstack" tunneldomain "$vstack" $IFCONFIG_OPTS
$SUDO ifconfig "vxlan$vstack" vnetid "$VNETID" tunnel "$vstack_tunsrc" "${VXLAN_TUNDST}${tundst_sufx}" up
[[ -n $DYNAMIC ]] && $SUDO ifconfig "bridge$vstack" rdomain "$vstack" add "vxlan$vstack" $IFCONFIG_OPTS up
}
. ${CURDIR}/vxlan_subr
VNETID=0
for rdom in $RDOMAINS; do
rdomain_is_used $rdom || abort_test "rdomain $rdom already in use"
[[ $rdom -ge $VNETID ]] && VNETID=$(( rdom + 1 ))
done
rdomain_is_used $VNETID || abort_test "rdomain $rdom already in use"
iface_exists "bridge$VNETID" && abort_test "interface bridge${VNETID} already exists"
$SUDO ifconfig "bridge$VNETID" rdomain "$VNETID" $IFCONFIG_OPTS up
case $AF in
inet)
PAIR_NETID="10.23.0."
PAIR_PREFX="/24"
VXLAN_TUNDST="224.0.2.$VNETID"
;;
inet6)
PAIR_NETID="fd23::"
PAIR_PREFX="/64"
VXLAN_TUNDST="ff02::$VNETID"
;;
*)
echo "Unknown AF $AF !"
exit 1
esac
trap cleanup 0 1 2 3 15
for id in $RDOMAINS; do
vstack_add $id
iface_exists "pair${id}1" && abort_test "interface pair${id}1 already exists"
$SUDO ifconfig "pair${id}1" rdomain $VNETID $IFCONFIG_OPTS up
CLEANUP_IFS="pair${id}1 $CLEANUP_IFS"
$SUDO ifconfig "pair${id}1" patch "pair${id}0"
$SUDO ifconfig "bridge$VNETID" add "pair${id}1"
done
CLEANUP_IFS="bridge$VNETID $CLEANUP_IFS"
STATUS=0
test_inet $RDOMAINS
test_inet6 $RDOMAINS
exit $STATUS
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