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#!/bin/ksh
# $OpenBSD: maxprefix.sh,v 1.2 2022/03/08 17:20:52 claudio Exp $
set -e
BGPD=$1
BGPDCONFIGDIR=$2
RDOMAIN1=$3
RDOMAIN2=$4
PAIR1=$5
PAIR2=$6
RDOMAINS="${RDOMAIN1} ${RDOMAIN2}"
PAIRS="${PAIR1} ${PAIR2}"
PAIR1IP=10.12.57.1
PAIR2IP=10.12.57.2
error_notify() {
echo cleanup
pkill -T ${RDOMAIN1} bgpd || true
pkill -T ${RDOMAIN2} bgpd || true
sleep 1
ifconfig ${PAIR2} destroy || true
ifconfig ${PAIR1} destroy || true
route -qn -T ${RDOMAIN1} flush || true
route -qn -T ${RDOMAIN2} flush || true
ifconfig lo${RDOMAIN1} destroy || true
ifconfig lo${RDOMAIN2} destroy || true
if [ $1 -ne 0 ]; then
echo FAILED
exit 1
else
echo SUCCESS
fi
}
if [ "$(id -u)" -ne 0 ]; then
echo need root privileges >&2
exit 1
fi
trap 'error_notify $?' EXIT
echo check if rdomains are busy
for n in ${RDOMAINS}; do
if /sbin/ifconfig | grep -v "^lo${n}:" | grep " rdomain ${n} "; then
echo routing domain ${n} is already used >&2
exit 1
fi
done
echo check if interfaces are busy
for n in ${PAIRS}; do
/sbin/ifconfig "${n}" >/dev/null 2>&1 && \
( echo interface ${n} is already used >&2; exit 1 )
done
set -x
echo setup
ifconfig ${PAIR1} rdomain ${RDOMAIN1} ${PAIR1IP}/30 up
ifconfig ${PAIR2} rdomain ${RDOMAIN2} ${PAIR2IP}/30 up
ifconfig ${PAIR1} patch ${PAIR2}
ifconfig lo${RDOMAIN1} inet 127.0.0.1/8
ifconfig lo${RDOMAIN2} inet 127.0.0.1/8
echo run bgpds
route -T ${RDOMAIN1} exec ${BGPD} \
-v -f ${BGPDCONFIGDIR}/bgpd.maxprefix.rdomain1.conf
sleep 1
route -T ${RDOMAIN2} exec ${BGPD} \
-v -f ${BGPDCONFIGDIR}/bgpd.maxprefix.rdomain2.conf
sleep 2
echo test1: add two networks
route -T ${RDOMAIN1} exec bgpctl network add 10.12.58.0/24
route -T ${RDOMAIN1} exec bgpctl network add 10.12.59.0/24
sleep 1
route -T ${RDOMAIN1} exec bgpctl show nei | \
awk '/^ Prefixes/ { if ($2 == "2") { print "ok"; ok=1; exit 0; } }
END { if (ok != 1) { print "bad bgpctl output"; exit 2; } }'
echo test1: add another network
route -T ${RDOMAIN1} exec bgpctl network add 10.12.60.0/24
sleep 1
route -T ${RDOMAIN1} exec bgpctl show nei | \
grep '^ Last error received: Cease, received max-prefix exceeded'
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