1# $NetBSD: t_ldp_regen.sh,v 1.4 2014/09/01 06:38:35 gson Exp $ 2# 3# Copyright (c) 2013 The NetBSD Foundation, Inc. 4# All rights reserved. 5# 6# Redistribution and use in source and binary forms, with or without 7# modification, are permitted provided that the following conditions 8# are met: 9# 1. Redistributions of source code must retain the above copyright 10# notice, this list of conditions and the following disclaimer. 11# 2. Redistributions in binary form must reproduce the above copyright 12# notice, this list of conditions and the following disclaimer in the 13# documentation and/or other materials provided with the distribution. 14# 15# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 16# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 17# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 18# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 19# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25# POSSIBILITY OF SUCH DAMAGE. 26# 27 28# IP/MPLS & LDP label reallocation test 29# Create 4 routers connected like this: R1--R2--R3--R4-- 30# The goal is to push packets from R1 to the R4 shmif1 (the right one) interface 31# Enable MPLS forwarding on R2 32# Disable IP forwarding and enable MPLS forwarding on R3 33# Start ldpd and wait for adjancencies to come up 34# Add an alias on shmif1 on R4 for which we already have a route on R3 35# Now: * R4 should install label IMPLNULL for that prefix 36# * R3 should realloc the target label from IMPLNULL to something else 37 38 39RUMP_SERVER1=unix://./r1 40RUMP_SERVER2=unix://./r2 41RUMP_SERVER3=unix://./r3 42RUMP_SERVER4=unix://./r4 43 44RUMP_LIBS="-lrumpnet -lrumpnet_net -lrumpnet_netmpls -lrumpnet_netinet -lrumpnet_netinet6 -lrumpnet_shmif" 45LDP_FLAGS="" 46 47atf_test_case ldp_regen cleanup 48ldp_regen_head() { 49 50 atf_set "descr" "IP/MPLS and LDP label regeneration test" 51 atf_set "require.progs" "rump_server" 52 atf_set "use.fs" "true" 53} 54 55newaddr_and_ping() { 56 57 # Add new address on R4 58 RUMP_SERVER=${RUMP_SERVER4} atf_check -s exit:0 \ 59 rump.ifconfig shmif1 10.0.5.1/24 alias 60 61 # Now ldpd on R5 should take notice of the new route and announce it 62 # to R4's ldpd. ldpd on R4 should verify that the next hop 63 # corresponds to its routing table and change its tag entry 64 RUMP_SERVER=${RUMP_SERVER1} atf_check -s exit:0 -o ignore -e ignore \ 65 rump.ping -n -o -w 5 10.0.5.1 66} 67 68create_servers() { 69 70 # allows us to run as normal user 71 ulimit -r 400 72 73 atf_check -s exit:0 rump_server ${RUMP_LIBS} ${RUMP_SERVER1} 74 atf_check -s exit:0 rump_server ${RUMP_LIBS} ${RUMP_SERVER2} 75 atf_check -s exit:0 rump_server ${RUMP_LIBS} ${RUMP_SERVER3} 76 atf_check -s exit:0 rump_server ${RUMP_LIBS} ${RUMP_SERVER4} 77 78 # LDP HIJACK 79 export RUMPHIJACK=path=/rump,socket=all,sysctl=yes 80 export LD_PRELOAD=/usr/lib/librumphijack.so 81 82 # Setup first server 83 export RUMP_SERVER=${RUMP_SERVER1} 84 atf_check -s exit:0 rump.ifconfig shmif0 create 85 atf_check -s exit:0 rump.ifconfig shmif0 linkstr ./shdom1 86 atf_check -s exit:0 rump.ifconfig shmif0 10.0.1.1/24 87 atf_check -s exit:0 rump.ifconfig mpls0 create up 88 atf_check -s exit:0 rump.sysctl -q -w net.inet.ip.forwarding=0 89 atf_check -s exit:0 rump.route -q add 10.0.4.0/24 10.0.1.2 90 atf_check -s exit:0 rump.route -q add 10.0.5.0/24 10.0.1.2 91 atf_check -s exit:0 /usr/sbin/ldpd ${LDP_FLAGS} 92 93 # Setup second server 94 export RUMP_SERVER=${RUMP_SERVER2} 95 atf_check -s exit:0 rump.ifconfig shmif0 create 96 atf_check -s exit:0 rump.ifconfig shmif0 linkstr ./shdom1 97 atf_check -s exit:0 rump.ifconfig shmif0 10.0.1.2/24 98 atf_check -s exit:0 rump.ifconfig shmif1 create 99 atf_check -s exit:0 rump.ifconfig shmif1 linkstr ./shdom2 100 atf_check -s exit:0 rump.ifconfig shmif1 10.0.2.1/24 101 atf_check -s exit:0 rump.ifconfig mpls0 create up 102 atf_check -s exit:0 rump.sysctl -q -w net.mpls.accept=1 103 atf_check -s exit:0 rump.sysctl -q -w net.mpls.forwarding=1 104 # This one should still do ip forwarding because it announces IMPLNULL 105 # for the 10.0.1.0/24 subnet 106 atf_check -s exit:0 rump.route -q add 10.0.4.0/24 10.0.2.2 107 atf_check -s exit:0 rump.route -q add 10.0.5.0/24 10.0.2.2 108 atf_check -s exit:0 /usr/sbin/ldpd ${LDP_FLAGS} 109 110 # Setup third server 111 export RUMP_SERVER=${RUMP_SERVER3} 112 atf_check -s exit:0 rump.ifconfig shmif0 create 113 atf_check -s exit:0 rump.ifconfig shmif0 linkstr ./shdom2 114 atf_check -s exit:0 rump.ifconfig shmif0 10.0.2.2/24 115 atf_check -s exit:0 rump.ifconfig shmif1 create 116 atf_check -s exit:0 rump.ifconfig shmif1 linkstr ./shdom3 117 atf_check -s exit:0 rump.ifconfig shmif1 10.0.3.1/24 118 atf_check -s exit:0 rump.ifconfig mpls0 create up 119 atf_check -s exit:0 rump.sysctl -q -w net.mpls.accept=1 120 atf_check -s exit:0 rump.sysctl -q -w net.mpls.forwarding=1 121 atf_check -s exit:0 rump.sysctl -q -w net.inet.ip.forwarding=0 122 atf_check -s exit:0 rump.route -q add 10.0.1.0/24 10.0.2.1 123 atf_check -s exit:0 rump.route -q add 10.0.4.0/24 10.0.3.2 124 atf_check -s exit:0 rump.route -q add 10.0.5.0/24 10.0.3.2 125 atf_check -s exit:0 /usr/sbin/ldpd ${LDP_FLAGS} 126 127 # Setup fourth server 128 export RUMP_SERVER=${RUMP_SERVER4} 129 atf_check -s exit:0 rump.ifconfig shmif0 create 130 atf_check -s exit:0 rump.ifconfig shmif0 linkstr ./shdom3 131 atf_check -s exit:0 rump.ifconfig shmif0 10.0.3.2/24 132 atf_check -s exit:0 rump.ifconfig shmif1 create 133 atf_check -s exit:0 rump.ifconfig shmif1 linkstr ./shdom4 134 atf_check -s exit:0 rump.ifconfig shmif1 10.0.4.1/24 135 atf_check -s exit:0 rump.sysctl -q -w net.inet.ip.forwarding=0 136 atf_check -s exit:0 rump.ifconfig mpls0 create up 137 atf_check -s exit:0 rump.route -q add 10.0.1.0/24 10.0.3.1 138 atf_check -s exit:0 /usr/sbin/ldpd ${LDP_FLAGS} 139 140 unset RUMP_SERVER 141 unset LD_PRELOAD 142 unset RUMPHIJACK 143} 144 145wait_ldp_ok() { 146 147 RUMP_SERVER=${RUMP_SERVER1} atf_check -s exit:0 -o ignore -e ignore \ 148 rump.ping -o -w 60 10.0.4.1 149} 150 151docleanup() { 152 153 RUMP_SERVER=${RUMP_SERVER1} rump.halt 154 RUMP_SERVER=${RUMP_SERVER2} rump.halt 155 RUMP_SERVER=${RUMP_SERVER3} rump.halt 156 RUMP_SERVER=${RUMP_SERVER4} rump.halt 157} 158 159ldp_regen_body() { 160 161 if sysctl machdep.cpu_brand | grep QEMU >/dev/null 2>&1 162 then 163 atf_skip "unreliable under qemu, skip until PR kern/43997 fixed" 164 fi 165 create_servers 166 wait_ldp_ok 167 newaddr_and_ping 168} 169 170ldp_regen_cleanup() { 171 172 docleanup 173} 174 175atf_init_test_cases() { 176 177 atf_add_test_case ldp_regen 178} 179