Improve tests of proxy arp
The tests make it clear how it behaves though, I don't know if the current behavior is what it should be.
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ozaki-r
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6d1844cb1e
commit
8ce75dc03a
@ -1,4 +1,4 @@
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# $NetBSD: t_arp.sh,v 1.12 2016/02/29 09:35:16 ozaki-r Exp $
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# $NetBSD: t_arp.sh,v 1.13 2016/03/04 04:18:44 ozaki-r Exp $
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#
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# Copyright (c) 2015 The NetBSD Foundation, Inc.
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# All rights reserved.
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@ -26,16 +26,15 @@
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#
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inetserver="rump_server -lrumpnet -lrumpnet_net -lrumpnet_netinet -lrumpnet_shmif"
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inetserver="$inetserver -lrumpdev -lrumpnet_tap"
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HIJACKING="env LD_PRELOAD=/usr/lib/librumphijack.so RUMPHIJACK=sysctl=yes"
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SOCKSRC=unix://commsock1
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SOCKDST=unix://commsock2
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IP4SRC=10.0.1.1
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IP4DST=10.0.1.2
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IP4DST_PUB=10.0.1.3
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MACDST_PUB=b2:a1:00:00:00:01
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IP4DST_PUBPROXY=10.0.1.4
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MACDST_PUBPROXY=b2:a1:00:00:00:02
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IP4DST_PROXYARP1=10.0.1.3
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IP4DST_PROXYARP2=10.0.1.4
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DEBUG=false
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TIMEOUT=1
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@ -45,7 +44,8 @@ atf_test_case cache_expiration_10s cleanup
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atf_test_case command cleanup
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atf_test_case garp cleanup
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atf_test_case cache_overwriting cleanup
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atf_test_case pubproxy_arp cleanup
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atf_test_case proxy_arp_pub cleanup
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atf_test_case proxy_arp_pubproxy cleanup
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atf_test_case link_activation cleanup
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cache_expiration_5s_head()
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@ -78,9 +78,15 @@ cache_overwriting_head()
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atf_set "require.progs" "rump_server"
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}
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pubproxy_arp_head()
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proxy_arp_pub_head()
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{
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atf_set "descr" "Tests for Proxy ARP"
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atf_set "descr" "Tests for Proxy ARP (pub)"
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atf_set "require.progs" "rump_server"
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}
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proxy_arp_pubproxy_head()
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{
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atf_set "descr" "Tests for Proxy ARP (pub proxy)"
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atf_set "require.progs" "rump_server"
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}
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@ -360,9 +366,12 @@ check_entry_flags()
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"rump.netstat -rn -f inet | grep ^'$ip'"
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}
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pubproxy_arp_body()
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test_proxy_arp()
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{
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local arp_keep=5
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local opts= title= flags=
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local type=$1
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atf_check -s exit:0 ${inetserver} $SOCKSRC
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atf_check -s exit:0 ${inetserver} $SOCKDST
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@ -371,48 +380,116 @@ pubproxy_arp_body()
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setup_src_server $arp_keep
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export RUMP_SERVER=$SOCKDST
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atf_check -s exit:0 -o ignore rump.sysctl -w net.inet.ip.forwarding=1
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macaddr_dst=$(rump.ifconfig shmif0 |awk '/address/ {print $2;}')
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atf_check -s exit:0 -o ignore rump.arp -s $IP4DST_PUB \
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$MACDST_PUB pub
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atf_check -s exit:0 -o match:'permanent published' \
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rump.arp -n $IP4DST_PUB
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check_entry_flags $IP4DST_PUB ULSp
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if [ "$type" = "pub" ]; then
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opts="pub"
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title="permanent published"
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flags="ULSp"
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else
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opts="pub proxy"
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title='permanent published \(proxy only\)'
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flags="UHLSp"
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fi
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$DEBUG && rump.arp -n -a
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$DEBUG && rump.netstat -nr -f inet
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atf_check -s exit:0 -o ignore rump.arp -s $IP4DST_PUBPROXY \
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$MACDST_PUBPROXY pub proxy
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atf_check -s exit:0 -o match:'permanent published \(proxy only\)' \
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rump.arp -n $IP4DST_PUBPROXY
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check_entry_flags $IP4DST_PUBPROXY UHLSp
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$DEBUG && rump.arp -n -a
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$DEBUG && rump.netstat -nr -f inet
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#
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# Test#1: First setup an endpoint then create proxy arp entry
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#
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export RUMP_SERVER=$SOCKDST
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atf_check -s exit:0 rump.ifconfig tap1 create
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atf_check -s exit:0 rump.ifconfig tap1 $IP4DST_PROXYARP1/24 up
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atf_check -s exit:0 rump.ifconfig -w 10
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# Try to ping (should fail w/o proxy arp)
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export RUMP_SERVER=$SOCKSRC
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atf_check -s not-exit:0 -o ignore -e ignore \
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rump.ping -n -w 1 -c 1 $IP4DST_PUB
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rump.ping -n -w 1 -c 1 $IP4DST_PROXYARP1
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# Flushing
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extract_new_packets > ./out
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# Set up proxy ARP entry
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export RUMP_SERVER=$SOCKDST
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atf_check -s exit:0 -o ignore \
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rump.arp -s $IP4DST_PROXYARP1 $macaddr_dst $opts
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atf_check -s exit:0 -o match:"$title" rump.arp -n $IP4DST_PROXYARP1
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if [ "$type" = "pub" ]; then
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# XXX local? Is it correct?
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check_entry_flags $IP4DST_PROXYARP1 ${flags}l
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else
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check_entry_flags $IP4DST_PROXYARP1 $flags
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fi
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# Try to ping
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export RUMP_SERVER=$SOCKSRC
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if [ "$type" = "pub" ]; then
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# XXX fails
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atf_check -s not-exit:0 -o ignore -e ignore \
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rump.ping -n -w 1 -c 1 $IP4DST_PROXYARP1
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else
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atf_check -s exit:0 -o ignore \
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rump.ping -n -w 1 -c 1 $IP4DST_PROXYARP1
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fi
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atf_check -s exit:0 sleep 1
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extract_new_packets > ./out
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$DEBUG && cat ./out
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pkt=$(make_pkt_str_arprep $IP4DST_PUB $MACDST_PUB)
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atf_check -s exit:0 -x "cat ./out |grep -q '$pkt'"
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pkt=$(make_pkt_str_arprep $IP4DST_PROXYARP1 $macaddr_dst)
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if [ "$type" = "pub" ]; then
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atf_check -s not-exit:0 -x "cat ./out |grep -q '$pkt'"
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else
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atf_check -s exit:0 -x "cat ./out |grep -q '$pkt'"
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fi
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#
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# Test#2: Create proxy arp entry then set up an endpoint
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#
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export RUMP_SERVER=$SOCKDST
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atf_check -s exit:0 -o ignore \
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rump.arp -s $IP4DST_PROXYARP2 $macaddr_dst $opts
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atf_check -s exit:0 -o match:"$title" rump.arp -n $IP4DST_PROXYARP2
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check_entry_flags $IP4DST_PROXYARP2 $flags
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# Try to ping (should fail because no endpoint exists)
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export RUMP_SERVER=$SOCKSRC
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atf_check -s not-exit:0 -o ignore -e ignore \
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rump.ping -n -w 1 -c 1 $IP4DST_PUBPROXY
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rump.ping -n -w 1 -c 1 $IP4DST_PROXYARP2
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atf_check -s exit:0 sleep 1
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extract_new_packets > ./out
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$DEBUG && cat ./out
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pkt=$(make_pkt_str_arprep $IP4DST_PUBPROXY $MACDST_PUBPROXY)
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# ARP reply should be sent
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pkt=$(make_pkt_str_arprep $IP4DST_PROXYARP2 $macaddr_dst)
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atf_check -s exit:0 -x "cat ./out |grep -q '$pkt'"
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return 0
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export RUMP_SERVER=$SOCKDST
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atf_check -s exit:0 rump.ifconfig tap2 create
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atf_check -s exit:0 rump.ifconfig tap2 $IP4DST_PROXYARP2/24 up
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atf_check -s exit:0 rump.ifconfig -w 10
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# Try to ping
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export RUMP_SERVER=$SOCKSRC
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if [ "$type" = "pub" ]; then
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atf_check -s exit:0 -o ignore \
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rump.ping -n -w 1 -c 1 $IP4DST_PROXYARP2
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else
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# XXX fails
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atf_check -s not-exit:0 -o ignore -e ignore \
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rump.ping -n -w 1 -c 1 $IP4DST_PROXYARP2
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fi
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}
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proxy_arp_pub_body()
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{
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test_proxy_arp pub
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}
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proxy_arp_pubproxy_body()
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{
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test_proxy_arp pubproxy
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}
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link_activation_body()
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@ -515,7 +592,13 @@ cache_overwriting_cleanup()
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cleanup
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}
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pubproxy_arp_cleanup()
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proxy_arp_pub_cleanup()
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{
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$DEBUG && dump
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cleanup
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}
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proxy_arp_pubproxy_cleanup()
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{
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$DEBUG && dump
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cleanup
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@ -534,6 +617,7 @@ atf_init_test_cases()
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atf_add_test_case command
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atf_add_test_case garp
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atf_add_test_case cache_overwriting
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atf_add_test_case pubproxy_arp
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atf_add_test_case proxy_arp_pub
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atf_add_test_case proxy_arp_pubproxy
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atf_add_test_case link_activation
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}
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