1#!/bin/ksh
2#	$OpenBSD: maxprefixout.sh,v 1.1 2020/01/26 00:54:47 claudio Exp $
3
4set -e
5
6BGPD=$1
7BGPDCONFIGDIR=$2
8RDOMAIN1=$3
9RDOMAIN2=$4
10PAIR1=$5
11PAIR2=$6
12
13RDOMAINS="${RDOMAIN1} ${RDOMAIN2}"
14PAIRS="${PAIR1} ${PAIR2}"
15PAIR1IP=10.12.57.1
16PAIR2IP=10.12.57.2
17
18error_notify() {
19	echo cleanup
20	pkill -T ${RDOMAIN1} bgpd || true
21	pkill -T ${RDOMAIN2} bgpd || true
22	sleep 1
23	ifconfig ${PAIR2} destroy || true
24	ifconfig ${PAIR1} destroy || true
25	route -qn -T ${RDOMAIN1} flush || true
26	route -qn -T ${RDOMAIN2} flush || true
27	ifconfig lo${RDOMAIN1} destroy || true
28	ifconfig lo${RDOMAIN2} destroy || true
29	if [ $1 -ne 0 ]; then
30		echo FAILED
31		exit 1
32	else
33		echo SUCCESS
34	fi
35}
36
37if [ "$(id -u)" -ne 0 ]; then
38	echo need root privileges >&2
39	exit 1
40fi
41
42trap 'error_notify $?' EXIT
43
44echo check if rdomains are busy
45for n in ${RDOMAINS}; do
46	if /sbin/ifconfig | grep -v "^lo${n}:" | grep " rdomain ${n} "; then
47		echo routing domain ${n} is already used >&2
48		exit 1
49	fi
50done
51
52echo check if interfaces are busy
53for n in ${PAIRS}; do
54	/sbin/ifconfig "${n}" >/dev/null 2>&1 && \
55	    ( echo interface ${n} is already used >&2; exit 1 )
56done
57
58set -x
59
60echo setup
61ifconfig ${PAIR1} rdomain ${RDOMAIN1} ${PAIR1IP}/30 up
62ifconfig ${PAIR2} rdomain ${RDOMAIN2} ${PAIR2IP}/30 up
63ifconfig ${PAIR1} patch ${PAIR2}
64ifconfig lo${RDOMAIN1} inet 127.0.0.1/8
65ifconfig lo${RDOMAIN2} inet 127.0.0.1/8
66
67echo run bgpds
68route -T ${RDOMAIN1} exec ${BGPD} \
69        -v -f ${BGPDCONFIGDIR}/bgpd.maxprefixout.rdomain1.conf
70route -T ${RDOMAIN2} exec ${BGPD} \
71	-v -f ${BGPDCONFIGDIR}/bgpd.maxprefixout.rdomain2.conf
72
73sleep 3
74
75echo test1: add two networks
76route -T ${RDOMAIN1} exec bgpctl network add 10.12.58.0/24
77route -T ${RDOMAIN1} exec bgpctl network add 10.12.59.0/24
78sleep 1
79route -T ${RDOMAIN1} exec bgpctl show nei | \
80	awk '/^  Prefixes/ { if ($2 == "2") { print "ok"; ok=1; exit 0; } }
81	     END { if (ok != 1) { print "bad bgpctl output"; exit 2; } }'
82
83echo test1: add another network
84route -T ${RDOMAIN1} exec bgpctl network add 10.12.60.0/24
85sleep 1
86route -T ${RDOMAIN1} exec bgpctl show nei | \
87	grep '^  Last error sent: Cease, sent max-prefix exceeded'
88