add a couple of tests for dynamic MPLS routes generation using ldpd

This commit is contained in:
kefren 2013-07-25 14:28:29 +00:00
parent ce9722db69
commit 2276864e5a
4 changed files with 411 additions and 3 deletions

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@ -1,4 +1,4 @@
# $NetBSD: mi,v 1.541 2013/07/23 11:26:33 kefren Exp $
# $NetBSD: mi,v 1.542 2013/07/25 14:28:29 kefren Exp $
#
# Note: don't delete entries from here - mark them as "obsolete" instead.
#
@ -2600,6 +2600,8 @@
./usr/tests/net/mpls tests-net-tests
./usr/tests/net/mpls/Atffile tests-net-tests atf,rump
./usr/tests/net/mpls/Kyuafile tests-net-tests atf,rump,kyua
./usr/tests/net/mpls/t_ldp_regen tests-net-tests atf,rump
./usr/tests/net/mpls/t_ldp_static tests-net-tests atf,rump
./usr/tests/net/mpls/t_mpls_fw tests-net-tests atf,rump
./usr/tests/net/mpls/t_rfc4182 tests-net-tests atf,rump
./usr/tests/net/net tests-net-tests

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@ -1,10 +1,10 @@
# $NetBSD: Makefile,v 1.2 2013/07/23 11:26:33 kefren Exp $
# $NetBSD: Makefile,v 1.3 2013/07/25 14:28:29 kefren Exp $
#
.include <bsd.own.mk>
TESTSDIR= ${TESTSBASE}/net/mpls
TESTS_SH= t_mpls_fw t_rfc4182
TESTS_SH= t_mpls_fw t_rfc4182 t_ldp_regen t_ldp_static
.include <bsd.test.mk>

176
tests/net/mpls/t_ldp_regen.sh Executable file
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# $NetBSD: t_ldp_regen.sh,v 1.1 2013/07/25 14:28:29 kefren 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_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=${RUMP_SERVER4} atf_check -s exit:0 \
rump.ifconfig shmif1 10.0.5.1/24 alias
# Now ldpd on R5 should take notice of the new route and announce it
# to R4's ldpd. ldpd on R4 should verify that the next hop
# corresponds to its routing table and change its tag entry
atf_expect_fail "IMPLNULL label bindings are not upgraded properly"
RUMP_SERVER=${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() {
create_servers
wait_ldp_ok
newaddr_and_ping
}
ldp_regen_cleanup() {
docleanup
}
atf_init_test_cases() {
atf_add_test_case ldp_regen
}

230
tests/net/mpls/t_ldp_static.sh Executable file
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# $NetBSD: t_ldp_static.sh,v 1.1 2013/07/25 14:28:29 kefren 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 test
# Create 5 routers connected like this: R1--R2--R3--R4--R5--
# The goal is to push packets from R1 to the R5 shmif1 (the right one) interface
# Disable IP forwarding and enable MPLS forwarding on R2, R3 and R4
# Put some load on ldp by creating 100 IP routes from R1 to R5 on R[1,2,3,4]
# Start ldpd and wait for adjancencies to come up
# ping random addresses from R1 to R5
# As IP forwarding is disabled the packets should be
# encapsulated into MPLS, use MPLS forwarding and decapsulated back into
# IP when reaching target
MAX_B=10
MAX_C=10
RUMP_SERVER1=unix://./r1
RUMP_SERVER2=unix://./r2
RUMP_SERVER3=unix://./r3
RUMP_SERVER4=unix://./r4
RUMP_SERVER5=unix://./r5
RUMP_LIBS="-lrumpnet -lrumpnet_net -lrumpnet_netmpls -lrumpnet_netinet -lrumpnet_shmif"
LDP_FLAGS=""
atf_test_case ldp_static cleanup
ldp_static_head() {
atf_set "descr" "IP/MPLS forwarding test using LDP and static IP routes"
atf_set "require.progs" "rump_server"
atf_set "use.fs" "true"
}
create_routes() {
for b in `seq 1 $MAX_B`
do for c in `seq 0 $MAX_C`
do atf_check -s exit:0 \
rump.route -q add 10.$b.$c.0/24 $1
done
done
}
delete_routes() {
for b in `seq 1 $MAX_B`
do for c in `seq 0 $MAX_C`
do atf_check -s exit:0 \
rump.route -q delete 10.$b.$c.0/24
done
done
}
ping_one() {
# Add address on R5
RUMP_SERVER=${RUMP_SERVER5} atf_check -s exit:0 \
rump.ifconfig shmif1 $1/24 alias
# Now ldpd on R5 should take notice of the new route and announce it
# to R4's ldpd. ldpd on R4 should verify that the next hop
# corresponds to its routing table and tag the route to an
RUMP_SERVER=${RUMP_SERVER1} atf_check -s exit:0 -o ignore -e ignore \
rump.ping -n -o -w 2 $1
# Tear it down and bye bye
RUMP_SERVER=${RUMP_SERVER5} atf_check -s exit:0 \
rump.ifconfig shmif1 $1/24 -alias
}
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}
atf_check -s exit:0 rump_server ${RUMP_LIBS} ${RUMP_SERVER5}
# LDP HIJACK
export RUMPHIJACK=path=/rump,socket=all,sysctl=yes
export LD_PRELOAD=/usr/lib/librumphijack.so
# Setup first server
export RUMP_SERVER=${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
create_routes 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
create_routes 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 10.0.5.0/24 10.0.3.2
create_routes 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.mpls.accept=1
atf_check -s exit:0 rump.sysctl -q -w net.mpls.forwarding=1
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 rump.route -q add 10.0.5.0/24 10.0.4.2
create_routes 10.0.4.2
atf_check -s exit:0 /usr/sbin/ldpd ${LDP_FLAGS}
# Setup fifth server
export RUMP_SERVER=${RUMP_SERVER5}
atf_check -s exit:0 rump.ifconfig shmif0 create
atf_check -s exit:0 rump.ifconfig shmif0 linkstr ./shdom4
atf_check -s exit:0 rump.ifconfig shmif0 10.0.4.2/24
atf_check -s exit:0 rump.ifconfig shmif1 create
atf_check -s exit:0 rump.ifconfig shmif1 linkstr ./shdom5
atf_check -s exit:0 rump.ifconfig shmif1 10.0.5.1/24
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 10.0.4.1
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 10.0.5.1
}
random_test() {
RND=`od -A n -N 1 < /dev/urandom`
RANDOM_B=`expr $RND % $MAX_B + 1`
RND=`od -A n -N 1 < /dev/urandom`
RANDOM_C=`expr $RND % $MAX_C`
ping_one 10.${RANDOM_B}.${RANDOM_C}.1
}
docleanup() {
RUMP_SERVER=${RUMP_SERVER1} rump.halt
RUMP_SERVER=${RUMP_SERVER2} rump.halt
RUMP_SERVER=${RUMP_SERVER3} rump.halt
RUMP_SERVER=${RUMP_SERVER4} rump.halt
RUMP_SERVER=${RUMP_SERVER5} rump.halt
}
ldp_static_body() {
create_servers
wait_ldp_ok
for i in `seq 1 19`;
do random_test
done
}
ldp_static_cleanup() {
docleanup
}
atf_init_test_cases() {
atf_add_test_case ldp_static
}