1#!/bin/ksh
2#	$OpenBSD: ovs.sh,v 1.3 2019/08/06 07:31:53 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
17PAIR2STATIC=10.12.58.0/24
18PAIR2CONNIP=10.12.59.1
19PAIR2CONNPREF=24
20PAIR2CONN=10.12.59.0/24
21PAIR2RTABLE=10.12.60.0/24
22PAIR2PRIORITY=10.12.61.0/24
23PAIR2VALID=10.12.62.0/24
24PAIR2INVALIDAS=10.12.63.0/24
25PAIR2NOTFOUND=10.12.64.0/24
26
27
28error_notify() {
29	echo cleanup
30	pkill -T ${RDOMAIN1} bgpd || true
31	pkill -T ${RDOMAIN2} bgpd || true
32	sleep 1
33	ifconfig ${PAIR2} destroy || true
34	ifconfig ${PAIR1} destroy || true
35	route -qn -T ${RDOMAIN1} flush || true
36	route -qn -T ${RDOMAIN2} flush || true
37	ifconfig lo${RDOMAIN1} destroy || true
38	ifconfig lo${RDOMAIN2} destroy || true
39	if [ $1 -ne 0 ]; then
40		echo FAILED
41		exit 1
42	else
43		echo SUCCESS
44	fi
45}
46
47if [ "$(id -u)" -ne 0 ]; then
48	echo need root privileges >&2
49	exit 1
50fi
51
52trap 'error_notify $?' EXIT
53
54echo check if rdomains are busy
55for n in ${RDOMAINS}; do
56	if /sbin/ifconfig | grep -v "^lo${n}:" | grep " rdomain ${n} "; then
57		echo routing domain ${n} is already used >&2
58		exit 1
59	fi
60done
61
62echo check if interfaces are busy
63for n in ${PAIRS}; do
64	/sbin/ifconfig "${n}" >/dev/null 2>&1 && \
65	    ( echo interface ${n} is already used >&2; exit 1 )
66done
67
68set -x
69
70echo setup
71ifconfig ${PAIR1} rdomain ${RDOMAIN1} ${PAIR1IP}/30 up
72ifconfig ${PAIR2} rdomain ${RDOMAIN2} ${PAIR2IP}/30 up
73ifconfig ${PAIR1} patch ${PAIR2}
74ifconfig lo${RDOMAIN1} inet 127.0.0.1/8
75ifconfig lo${RDOMAIN2} inet 127.0.0.1/8
76
77echo add routes
78route -T ${RDOMAIN2} add ${PAIR2STATIC} ${PAIR1IP}
79ifconfig ${PAIR2} alias ${PAIR2CONNIP}/${PAIR2CONNPREF}
80route -T ${RDOMAIN2} add -label PAIR2RTABLE ${PAIR2RTABLE} \
81	${PAIR1IP}
82route -T ${RDOMAIN2} add -priority 55 ${PAIR2PRIORITY} \
83	${PAIR1IP}
84route -T ${RDOMAIN1} exec ${BGPD} \
85	-v -f ${BGPDCONFIGDIR}/bgpd.ovs.rdomain1.conf
86route -T ${RDOMAIN2} exec ${BGPD} \
87	-v -f ${BGPDCONFIGDIR}/bgpd.ovs.rdomain2.conf
88
89sleep 2
90
91echo test 1
92route -T ${RDOMAIN1} exec bgpctl sh rib ovs valid | \
93	grep ${PAIR2VALID}
94route -T ${RDOMAIN1} exec bgpctl sh rib ovs invalid | \
95	grep ${PAIR2INVALIDAS}
96route -T ${RDOMAIN1} exec bgpctl sh rib ovs not-found | \
97	grep ${PAIR2NOTFOUND}
98
99echo reload config
100route -T ${RDOMAIN1} exec bgpctl reload
101sleep 2
102
103echo test 2
104route -T ${RDOMAIN1} exec bgpctl sh rib ovs valid | \
105	grep ${PAIR2VALID}
106route -T ${RDOMAIN1} exec bgpctl sh rib ovs invalid | \
107	grep ${PAIR2INVALIDAS}
108route -T ${RDOMAIN1} exec bgpctl sh rib ovs not-found | \
109	grep ${PAIR2NOTFOUND}
110
111exit 0
112