# $NetBSD: t_ldp_regen.sh,v 1.4 2014/09/01 06:38:35 gson Exp $ # # Copyright (c) 2013 The NetBSD Foundation, Inc. # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions # are met: # 1. Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # 2. Redistributions in binary form must reproduce the above copyright # notice, this list of conditions and the following disclaimer in the # documentation and/or other materials provided with the distribution. # # THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS # ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE # POSSIBILITY OF SUCH DAMAGE. # # IP/MPLS & LDP label reallocation test # Create 4 routers connected like this: R1--R2--R3--R4-- # The goal is to push packets from R1 to the R4 shmif1 (the right one) interface # Enable MPLS forwarding on R2 # Disable IP forwarding and enable MPLS forwarding on R3 # Start ldpd and wait for adjancencies to come up # Add an alias on shmif1 on R4 for which we already have a route on R3 # Now: * R4 should install label IMPLNULL for that prefix # * R3 should realloc the target label from IMPLNULL to something else RUMP_SERVER1=unix://./r1 RUMP_SERVER2=unix://./r2 RUMP_SERVER3=unix://./r3 RUMP_SERVER4=unix://./r4 RUMP_LIBS="-lrumpnet -lrumpnet_net -lrumpnet_netmpls -lrumpnet_netinet -lrumpnet_netinet6 -lrumpnet_shmif" LDP_FLAGS="" atf_test_case ldp_regen cleanup ldp_regen_head() { atf_set "descr" "IP/MPLS and LDP label regeneration test" atf_set "require.progs" "rump_server" atf_set "use.fs" "true" } newaddr_and_ping() { # Add new address on R4 RUMP_SERVER=${RUMP_SERVER4} atf_check -s exit:0 \ rump.ifconfig shmif1 10.0.5.1/24 alias # Now ldpd on R5 should take notice of the new route and announce it # to R4's ldpd. ldpd on R4 should verify that the next hop # corresponds to its routing table and change its tag entry RUMP_SERVER=${RUMP_SERVER1} atf_check -s exit:0 -o ignore -e ignore \ rump.ping -n -o -w 5 10.0.5.1 } create_servers() { # allows us to run as normal user ulimit -r 400 atf_check -s exit:0 rump_server ${RUMP_LIBS} ${RUMP_SERVER1} atf_check -s exit:0 rump_server ${RUMP_LIBS} ${RUMP_SERVER2} atf_check -s exit:0 rump_server ${RUMP_LIBS} ${RUMP_SERVER3} atf_check -s exit:0 rump_server ${RUMP_LIBS} ${RUMP_SERVER4} # LDP HIJACK export RUMPHIJACK=path=/rump,socket=all,sysctl=yes export LD_PRELOAD=/usr/lib/librumphijack.so # Setup first server export RUMP_SERVER=${RUMP_SERVER1} atf_check -s exit:0 rump.ifconfig shmif0 create atf_check -s exit:0 rump.ifconfig shmif0 linkstr ./shdom1 atf_check -s exit:0 rump.ifconfig shmif0 10.0.1.1/24 atf_check -s exit:0 rump.ifconfig mpls0 create up atf_check -s exit:0 rump.sysctl -q -w net.inet.ip.forwarding=0 atf_check -s exit:0 rump.route -q add 10.0.4.0/24 10.0.1.2 atf_check -s exit:0 rump.route -q add 10.0.5.0/24 10.0.1.2 atf_check -s exit:0 /usr/sbin/ldpd ${LDP_FLAGS} # Setup second server export RUMP_SERVER=${RUMP_SERVER2} atf_check -s exit:0 rump.ifconfig shmif0 create atf_check -s exit:0 rump.ifconfig shmif0 linkstr ./shdom1 atf_check -s exit:0 rump.ifconfig shmif0 10.0.1.2/24 atf_check -s exit:0 rump.ifconfig shmif1 create atf_check -s exit:0 rump.ifconfig shmif1 linkstr ./shdom2 atf_check -s exit:0 rump.ifconfig shmif1 10.0.2.1/24 atf_check -s exit:0 rump.ifconfig mpls0 create up atf_check -s exit:0 rump.sysctl -q -w net.mpls.accept=1 atf_check -s exit:0 rump.sysctl -q -w net.mpls.forwarding=1 # This one should still do ip forwarding because it announces IMPLNULL # for the 10.0.1.0/24 subnet atf_check -s exit:0 rump.route -q add 10.0.4.0/24 10.0.2.2 atf_check -s exit:0 rump.route -q add 10.0.5.0/24 10.0.2.2 atf_check -s exit:0 /usr/sbin/ldpd ${LDP_FLAGS} # Setup third server export RUMP_SERVER=${RUMP_SERVER3} atf_check -s exit:0 rump.ifconfig shmif0 create atf_check -s exit:0 rump.ifconfig shmif0 linkstr ./shdom2 atf_check -s exit:0 rump.ifconfig shmif0 10.0.2.2/24 atf_check -s exit:0 rump.ifconfig shmif1 create atf_check -s exit:0 rump.ifconfig shmif1 linkstr ./shdom3 atf_check -s exit:0 rump.ifconfig shmif1 10.0.3.1/24 atf_check -s exit:0 rump.ifconfig mpls0 create up atf_check -s exit:0 rump.sysctl -q -w net.mpls.accept=1 atf_check -s exit:0 rump.sysctl -q -w net.mpls.forwarding=1 atf_check -s exit:0 rump.sysctl -q -w net.inet.ip.forwarding=0 atf_check -s exit:0 rump.route -q add 10.0.1.0/24 10.0.2.1 atf_check -s exit:0 rump.route -q add 10.0.4.0/24 10.0.3.2 atf_check -s exit:0 rump.route -q add 10.0.5.0/24 10.0.3.2 atf_check -s exit:0 /usr/sbin/ldpd ${LDP_FLAGS} # Setup fourth server export RUMP_SERVER=${RUMP_SERVER4} atf_check -s exit:0 rump.ifconfig shmif0 create atf_check -s exit:0 rump.ifconfig shmif0 linkstr ./shdom3 atf_check -s exit:0 rump.ifconfig shmif0 10.0.3.2/24 atf_check -s exit:0 rump.ifconfig shmif1 create atf_check -s exit:0 rump.ifconfig shmif1 linkstr ./shdom4 atf_check -s exit:0 rump.ifconfig shmif1 10.0.4.1/24 atf_check -s exit:0 rump.sysctl -q -w net.inet.ip.forwarding=0 atf_check -s exit:0 rump.ifconfig mpls0 create up atf_check -s exit:0 rump.route -q add 10.0.1.0/24 10.0.3.1 atf_check -s exit:0 /usr/sbin/ldpd ${LDP_FLAGS} unset RUMP_SERVER unset LD_PRELOAD unset RUMPHIJACK } wait_ldp_ok() { RUMP_SERVER=${RUMP_SERVER1} atf_check -s exit:0 -o ignore -e ignore \ rump.ping -o -w 60 10.0.4.1 } docleanup() { RUMP_SERVER=${RUMP_SERVER1} rump.halt RUMP_SERVER=${RUMP_SERVER2} rump.halt RUMP_SERVER=${RUMP_SERVER3} rump.halt RUMP_SERVER=${RUMP_SERVER4} rump.halt } ldp_regen_body() { if sysctl machdep.cpu_brand | grep QEMU >/dev/null 2>&1 then atf_skip "unreliable under qemu, skip until PR kern/43997 fixed" fi create_servers wait_ldp_ok newaddr_and_ping } ldp_regen_cleanup() { docleanup } atf_init_test_cases() { atf_add_test_case ldp_regen }