Add a simple regress test to check that max-prefix works

4 files changed, 123 insertions, 2 deletions

diff --git a/regress/usr.sbin/bgpd/integrationtests/Makefile b/regress/usr.sbin/bgpd/integrationtests/Makefile
index 345c0fb9234..71924c0fd3b 100644
--- a/regress/usr.sbin/bgpd/integrationtests/Makefile
+++ b/regress/usr.sbin/bgpd/integrationtests/Makefile
@@ -1,6 +1,6 @@
-# $OpenBSD: Makefile,v 1.9 2019/08/13 09:08:19 claudio Exp $
+# $OpenBSD: Makefile,v 1.10 2020/01/22 02:01:11 claudio Exp $
 
-REGRESS_TARGETS	= 	network_statement md5 ovs mrt as0
+REGRESS_TARGETS	= 	network_statement md5 ovs mrt maxprefix as0
 
 BGPD ?=			/usr/sbin/bgpd
 
@@ -18,6 +18,9 @@ ovs:
 mrt:
 	${SUDO} ksh ${.CURDIR}/$@.sh ${BGPD} ${.CURDIR} 11
 
+maxprefix:
+	${SUDO} ksh ${.CURDIR}/$@.sh ${BGPD} ${.CURDIR} 11 12 pair11 pair12
+
 .if ! exists(/usr/local/bin/exabgp)
 as0:
 	# install exabgp from ports for additional tests
diff --git a/regress/usr.sbin/bgpd/integrationtests/bgpd.maxprefix.rdomain1.conf b/regress/usr.sbin/bgpd/integrationtests/bgpd.maxprefix.rdomain1.conf
new file mode 100644
index 00000000000..3a6b3cb53ef
--- /dev/null
+++ b/regress/usr.sbin/bgpd/integrationtests/bgpd.maxprefix.rdomain1.conf
@@ -0,0 +1,15 @@
+AS 4200000001
+router-id 10.12.57.1
+fib-update no
+
+log updates
+
+neighbor 10.12.57.2 {
+	descr		"RDOMAIN2"
+	remote-as	4200000002
+}
+
+deny from any
+deny to any
+
+allow to any
diff --git a/regress/usr.sbin/bgpd/integrationtests/bgpd.maxprefix.rdomain2.conf b/regress/usr.sbin/bgpd/integrationtests/bgpd.maxprefix.rdomain2.conf
new file mode 100644
index 00000000000..63a6e111766
--- /dev/null
+++ b/regress/usr.sbin/bgpd/integrationtests/bgpd.maxprefix.rdomain2.conf
@@ -0,0 +1,16 @@
+AS 4200000002
+router-id 10.12.57.2
+fib-update no
+
+log updates
+
+neighbor 10.12.57.1 {
+	descr		"RDOMAIN1"
+	remote-as	4200000001
+	max-prefix 2
+}
+
+deny from any
+deny to any
+
+allow from any
diff --git a/regress/usr.sbin/bgpd/integrationtests/maxprefix.sh b/regress/usr.sbin/bgpd/integrationtests/maxprefix.sh
new file mode 100644
index 00000000000..4a9c275774f
--- /dev/null
+++ b/regress/usr.sbin/bgpd/integrationtests/maxprefix.sh
@@ -0,0 +1,87 @@
+#!/bin/ksh
+#	$OpenBSD: maxprefix.sh,v 1.1 2020/01/22 02:01:11 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
+route -T ${RDOMAIN2} exec ${BGPD} \
+	-v -f ${BGPDCONFIGDIR}/bgpd.maxprefix.rdomain2.conf
+
+sleep 3
+
+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'