Add tests of rtcache invalidation
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ozaki-r
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# $NetBSD: mi,v 1.761 2017/08/16 13:53:20 joerg Exp $
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# $NetBSD: mi,v 1.762 2017/09/20 09:36:20 ozaki-r Exp $
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#
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# Note: don't delete entries from here - mark them as "obsolete" instead.
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#
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@ -3379,6 +3379,7 @@
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./usr/tests/net/route/t_flags tests-net-tests atf,rump
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./usr/tests/net/route/t_flags6 tests-net-tests atf,rump
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./usr/tests/net/route/t_route tests-net-tests atf,rump
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./usr/tests/net/route/t_rtcache tests-net-tests atf,rump
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./usr/tests/net/sys tests-net-tests compattestfile,atf
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./usr/tests/net/sys/Atffile tests-net-tests compattestfile,atf
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./usr/tests/net/sys/Kyuafile tests-net-tests compattestfile,atf,kyua
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@ -1,11 +1,11 @@
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# $NetBSD: Makefile,v 1.5 2016/11/24 09:05:17 ozaki-r Exp $
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# $NetBSD: Makefile,v 1.6 2017/09/20 09:36:20 ozaki-r Exp $
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#
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.include <bsd.own.mk>
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TESTSDIR= ${TESTSBASE}/net/route
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.for name in change flags flags6 route
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.for name in change flags flags6 route rtcache
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TESTS_SH+= t_${name}
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TESTS_SH_SRC_t_${name}= ../net_common.sh t_${name}.sh
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.endfor
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167
tests/net/route/t_rtcache.sh
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167
tests/net/route/t_rtcache.sh
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# $NetBSD: t_rtcache.sh,v 1.1 2017/09/20 09:36:20 ozaki-r Exp $
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#
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# Copyright (c) 2017 Internet Initiative Japan Inc.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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SOCK_SRC=unix://rtcache_src
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SOCK_FWD=unix://rtcache_fwd
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SOCK_DST1=unix://rtcache_dst1
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SOCK_DST2=unix://rtcache_dst2
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BUS_SRC=./src
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BUS_DST1=./dst1
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BUS_DST2=./dst2
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DEBUG=${DEBUG:-false}
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atf_test_case rtcache_invalidation cleanup
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rtcache_invalidation_head()
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{
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atf_set "descr" "Tests for rtcache invalidation"
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atf_set "require.progs" "rump_server"
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}
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rtcache_invalidation_body()
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{
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local ip_src=10.0.0.2
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local ip_gwsrc=10.0.0.1
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local ip_gwdst1=10.0.1.1
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local ip_gwdst2=10.0.2.1
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local ip_dst1=10.0.1.2
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local ip_dst2=10.0.2.2
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local ip_dst=10.0.3.1
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local subnet_src=10.0.0.0
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local subnet_dst=10.0.3.0
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rump_server_start $SOCK_SRC
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rump_server_start $SOCK_FWD
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rump_server_start $SOCK_DST1
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rump_server_start $SOCK_DST2
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rump_server_add_iface $SOCK_SRC shmif0 $BUS_SRC
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rump_server_add_iface $SOCK_FWD shmif0 $BUS_SRC
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rump_server_add_iface $SOCK_FWD shmif1 $BUS_DST1
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rump_server_add_iface $SOCK_FWD shmif2 $BUS_DST2
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rump_server_add_iface $SOCK_DST1 shmif0 $BUS_DST1
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rump_server_add_iface $SOCK_DST2 shmif0 $BUS_DST2
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export RUMP_SERVER=$SOCK_SRC
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atf_check -s exit:0 rump.sysctl -q -w net.inet.ip.dad_count=0
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atf_check -s exit:0 rump.ifconfig shmif0 $ip_src/24
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atf_check -s exit:0 -o ignore rump.route add default $ip_gwsrc
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export RUMP_SERVER=$SOCK_FWD
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atf_check -s exit:0 rump.sysctl -q -w net.inet.ip.forwarding=1
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atf_check -s exit:0 rump.sysctl -q -w net.inet.ip.dad_count=0
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atf_check -s exit:0 rump.ifconfig shmif0 $ip_gwsrc/24
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atf_check -s exit:0 rump.ifconfig shmif1 $ip_gwdst1/24
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atf_check -s exit:0 rump.ifconfig shmif2 $ip_gwdst2/24
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export RUMP_SERVER=$SOCK_DST1
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atf_check -s exit:0 rump.sysctl -q -w net.inet.ip.dad_count=0
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atf_check -s exit:0 rump.ifconfig shmif0 $ip_dst1/24
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atf_check -s exit:0 -o ignore rump.route add default $ip_gwdst1
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atf_check -s exit:0 rump.ifconfig shmif0 $ip_dst/24 alias
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export RUMP_SERVER=$SOCK_DST2
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atf_check -s exit:0 rump.sysctl -q -w net.inet.ip.dad_count=0
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atf_check -s exit:0 rump.ifconfig shmif0 $ip_dst2/24
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atf_check -s exit:0 -o ignore rump.route add default $ip_gwdst2
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atf_check -s exit:0 rump.ifconfig shmif0 $ip_dst/24 alias
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export RUMP_SERVER=$SOCK_SRC
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atf_check -s exit:0 -o ignore rump.ping -n -w 3 -c 1 $ip_dst1
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atf_check -s exit:0 -o ignore rump.ping -n -w 3 -c 1 $ip_dst2
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# It fails because there is no route to $ip_dst
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atf_check -s not-exit:0 -o ignore rump.ping -n -w 3 -c 1 $ip_dst
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extract_new_packets $BUS_DST1 > ./outfile
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export RUMP_SERVER=$SOCK_FWD
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# Add the default route so that $ip_dst @ dst1 is reachable now
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atf_check -s exit:0 -o ignore rump.route add default $ip_dst1
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export RUMP_SERVER=$SOCK_DST1
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# ...but don't response ICMP requests to avoid rtcache pollution
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atf_check -s exit:0 -o ignore \
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rump.route add -net $subnet_src/24 127.0.0.1 -blackhole
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export RUMP_SERVER=$SOCK_SRC
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# ping fails expectedly
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atf_check -s not-exit:0 -o ignore rump.ping -n -w 3 -c 1 $ip_dst
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# An ICMP request should come to dst1
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extract_new_packets $BUS_DST1 > ./outfile
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atf_check -s exit:0 -o match:"$ip_src > $ip_dst: ICMP echo request" \
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cat ./outfile
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export RUMP_SERVER=$SOCK_FWD
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# Teach the subnet of $ip_dst is at dst2
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atf_check -s exit:0 -o ignore rump.route add -net $subnet_dst/24 $ip_dst2
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export RUMP_SERVER=$SOCK_DST2
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# ...but don't response ICMP requests to avoid rtcache pollution
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atf_check -s exit:0 -o ignore \
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rump.route add -net $subnet_src/24 127.0.0.1 -blackhole
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export RUMP_SERVER=$SOCK_SRC
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# ping fails expectedly
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atf_check -s not-exit:0 -o ignore rump.ping -n -w 3 -c 1 $ip_dst
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# An ICMP request should come to dst2. If rtcaches aren't invalidated
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# correctly, the ICMP request should appear at dst1
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extract_new_packets $BUS_DST1 > ./outfile
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atf_check -s exit:0 -o not-match:"$ip_src > $ip_dst: ICMP echo request" \
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cat ./outfile
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export RUMP_SERVER=$SOCK_FWD
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# Delete the route so the packets heading to $ip_dst should go dst1 again
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atf_check -s exit:0 -o ignore rump.route delete -net $subnet_dst/24 $ip_dst2
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export RUMP_SERVER=$SOCK_SRC
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# ping fails expectedly
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atf_check -s not-exit:0 -o ignore rump.ping -n -w 3 -c 1 $ip_dst
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# An ICMP request should come to dst1
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extract_new_packets $BUS_DST1 > ./outfile
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atf_check -s exit:0 -o match:"$ip_src > $ip_dst: ICMP echo request" \
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cat ./outfile
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rump_server_destroy_ifaces
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}
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rtcache_invalidation_cleanup()
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{
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$DEBUG && dump
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cleanup
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}
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atf_init_test_cases()
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{
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atf_add_test_case rtcache_invalidation
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}
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