613 lines
16 KiB
Bash
Executable File
613 lines
16 KiB
Bash
Executable File
# $NetBSD: t_arp.sh,v 1.22 2016/11/25 08:51:16 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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#
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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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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_PROXYARP1=10.0.1.3
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IP4DST_PROXYARP2=10.0.1.4
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DEBUG=${DEBUG:-false}
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TIMEOUT=1
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atf_test_case arp_cache_expiration_5s cleanup
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atf_test_case arp_cache_expiration_10s cleanup
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atf_test_case arp_command cleanup
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atf_test_case arp_garp cleanup
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atf_test_case arp_cache_overwriting cleanup
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atf_test_case arp_proxy_arp_pub cleanup
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atf_test_case arp_proxy_arp_pubproxy cleanup
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atf_test_case arp_link_activation cleanup
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atf_test_case arp_static cleanup
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arp_cache_expiration_5s_head()
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{
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atf_set "descr" "Tests for ARP cache expiration (5s)"
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atf_set "require.progs" "rump_server"
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}
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arp_cache_expiration_10s_head()
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{
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atf_set "descr" "Tests for ARP cache expiration (10s)"
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atf_set "require.progs" "rump_server"
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}
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arp_command_head()
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{
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atf_set "descr" "Tests for arp_commands of arp(8)"
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atf_set "require.progs" "rump_server"
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}
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arp_garp_head()
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{
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atf_set "descr" "Tests for GARP"
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atf_set "require.progs" "rump_server"
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}
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arp_cache_overwriting_head()
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{
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atf_set "descr" "Tests for behavior of overwriting ARP caches"
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atf_set "require.progs" "rump_server"
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}
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arp_proxy_arp_pub_head()
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{
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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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arp_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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arp_link_activation_head()
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{
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atf_set "descr" "Tests for activating a new MAC address"
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atf_set "require.progs" "rump_server"
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}
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arp_static_head()
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{
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atf_set "descr" "Tests for static ARP entries"
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atf_set "require.progs" "rump_server"
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}
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setup_dst_server()
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{
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rump_server_add_iface $SOCKDST shmif0 bus1
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export RUMP_SERVER=$SOCKDST
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atf_check -s exit:0 rump.ifconfig shmif0 inet $IP4DST/24
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atf_check -s exit:0 rump.ifconfig shmif0 up
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atf_check -s exit:0 rump.ifconfig -w 10
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$DEBUG && rump.ifconfig shmif0
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$DEBUG && rump.arp -n -a
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}
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setup_src_server()
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{
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local keep=$1
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export RUMP_SERVER=$SOCKSRC
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# Adjust ARP parameters
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atf_check -s exit:0 -o ignore rump.sysctl -w net.inet.arp.keep=$keep
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# Setup an interface
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rump_server_add_iface $SOCKSRC shmif0 bus1
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atf_check -s exit:0 rump.ifconfig shmif0 inet $IP4SRC/24
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atf_check -s exit:0 rump.ifconfig shmif0 up
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atf_check -s exit:0 rump.ifconfig -w 10
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# Sanity check
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$DEBUG && rump.ifconfig shmif0
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$DEBUG && rump.arp -n -a
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atf_check -s exit:0 -o ignore rump.arp -n $IP4SRC
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atf_check -s not-exit:0 -e ignore rump.arp -n $IP4DST
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}
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test_cache_expiration()
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{
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local arp_keep=$1
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local bonus=2
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rump_server_start $SOCKSRC
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rump_server_start $SOCKDST
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setup_dst_server
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setup_src_server $arp_keep
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#
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# Check if a cache is expired expectedly
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#
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export RUMP_SERVER=$SOCKSRC
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atf_check -s exit:0 -o ignore rump.ping -n -w $TIMEOUT -c 1 $IP4DST
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$DEBUG && rump.arp -n -a
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atf_check -s exit:0 -o ignore rump.arp -n $IP4SRC
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# Should be cached
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atf_check -s exit:0 -o ignore rump.arp -n $IP4DST
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atf_check -s exit:0 sleep $(($arp_keep + $bonus))
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$DEBUG && rump.arp -n -a
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atf_check -s exit:0 -o ignore rump.arp -n $IP4SRC
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# Should be expired
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atf_check -s not-exit:0 -e ignore rump.arp -n $IP4DST
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}
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arp_cache_expiration_5s_body()
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{
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test_cache_expiration 5
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rump_server_destroy_ifaces
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}
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arp_cache_expiration_10s_body()
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{
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test_cache_expiration 10
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rump_server_destroy_ifaces
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}
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arp_command_body()
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{
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local arp_keep=5
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local bonus=2
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rump_server_start $SOCKSRC
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rump_server_start $SOCKDST
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setup_dst_server
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setup_src_server $arp_keep
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export RUMP_SERVER=$SOCKSRC
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# We can delete the entry for the interface's IP address
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atf_check -s exit:0 -o ignore rump.arp -d $IP4SRC
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# Add and delete a static entry
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$DEBUG && rump.arp -n -a
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atf_check -s exit:0 -o ignore rump.arp -s 10.0.1.10 b2:a0:20:00:00:10
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$DEBUG && rump.arp -n -a
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atf_check -s exit:0 -o match:'b2:a0:20:00:00:10' rump.arp -n 10.0.1.10
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atf_check -s exit:0 -o match:'permanent' rump.arp -n 10.0.1.10
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atf_check -s exit:0 -o ignore rump.arp -d 10.0.1.10
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$DEBUG && rump.arp -n -a
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atf_check -s not-exit:0 -e ignore rump.arp -n 10.0.1.10
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# Add multiple entries via a file
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cat - > ./list <<-EOF
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10.0.1.11 b2:a0:20:00:00:11
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10.0.1.12 b2:a0:20:00:00:12
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10.0.1.13 b2:a0:20:00:00:13
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10.0.1.14 b2:a0:20:00:00:14
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10.0.1.15 b2:a0:20:00:00:15
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EOF
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$DEBUG && rump.arp -n -a
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atf_check -s exit:0 -o ignore rump.arp -f ./list
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$DEBUG && rump.arp -n -a
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atf_check -s exit:0 -o match:'b2:a0:20:00:00:11' rump.arp -n 10.0.1.11
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atf_check -s exit:0 -o match:'permanent' rump.arp -n 10.0.1.11
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atf_check -s exit:0 -o match:'b2:a0:20:00:00:12' rump.arp -n 10.0.1.12
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atf_check -s exit:0 -o match:'permanent' rump.arp -n 10.0.1.12
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atf_check -s exit:0 -o match:'b2:a0:20:00:00:13' rump.arp -n 10.0.1.13
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atf_check -s exit:0 -o match:'permanent' rump.arp -n 10.0.1.13
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atf_check -s exit:0 -o match:'b2:a0:20:00:00:14' rump.arp -n 10.0.1.14
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atf_check -s exit:0 -o match:'permanent' rump.arp -n 10.0.1.14
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atf_check -s exit:0 -o match:'b2:a0:20:00:00:15' rump.arp -n 10.0.1.15
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atf_check -s exit:0 -o match:'permanent' rump.arp -n 10.0.1.15
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# Test arp -a
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atf_check -s exit:0 -o match:'10.0.1.11' rump.arp -n -a
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atf_check -s exit:0 -o match:'10.0.1.12' rump.arp -n -a
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atf_check -s exit:0 -o match:'10.0.1.13' rump.arp -n -a
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atf_check -s exit:0 -o match:'10.0.1.14' rump.arp -n -a
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atf_check -s exit:0 -o match:'10.0.1.15' rump.arp -n -a
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# Flush all entries
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$DEBUG && rump.arp -n -a
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atf_check -s exit:0 -o ignore rump.arp -d -a
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atf_check -s not-exit:0 -e ignore rump.arp -n 10.0.1.11
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atf_check -s not-exit:0 -e ignore rump.arp -n 10.0.1.12
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atf_check -s not-exit:0 -e ignore rump.arp -n 10.0.1.13
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atf_check -s not-exit:0 -e ignore rump.arp -n 10.0.1.14
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atf_check -s not-exit:0 -e ignore rump.arp -n 10.0.1.15
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atf_check -s not-exit:0 -e ignore rump.arp -n 10.0.1.1
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# Test temp option
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$DEBUG && rump.arp -n -a
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atf_check -s exit:0 -o ignore rump.arp -s 10.0.1.10 b2:a0:20:00:00:10 temp
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$DEBUG && rump.arp -n -a
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atf_check -s exit:0 -o match:'b2:a0:20:00:00:10' rump.arp -n 10.0.1.10
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atf_check -s exit:0 -o not-match:'permanent' rump.arp -n 10.0.1.10
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# Hm? the cache doesn't expire...
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atf_check -s exit:0 sleep $(($arp_keep + $bonus))
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$DEBUG && rump.arp -n -a
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#atf_check -s not-exit:0 -e ignore rump.arp -n 10.0.1.10
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rump_server_destroy_ifaces
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}
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make_pkt_str_arpreq()
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{
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local target=$1
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local sender=$2
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pkt="> ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42:"
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pkt="$pkt Request who-has $target tell $sender, length 28"
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echo $pkt
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}
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arp_garp_body()
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{
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local pkt=
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rump_server_start $SOCKSRC
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export RUMP_SERVER=$SOCKSRC
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# Setup an interface
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rump_server_add_iface $SOCKSRC shmif0 bus1
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atf_check -s exit:0 rump.ifconfig shmif0 inet 10.0.0.1/24
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atf_check -s exit:0 rump.ifconfig shmif0 inet 10.0.0.2/24 alias
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atf_check -s exit:0 rump.ifconfig shmif0 up
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$DEBUG && rump.ifconfig shmif0
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atf_check -s exit:0 sleep 1
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shmif_dumpbus -p - bus1 2>/dev/null| tcpdump -n -e -r - > ./out
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# A GARP packet is sent for the primary address
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pkt=$(make_pkt_str_arpreq 10.0.0.1 10.0.0.1)
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atf_check -s exit:0 -x "cat ./out |grep -q '$pkt'"
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# No GARP packet is sent for the alias address
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pkt=$(make_pkt_str_arpreq 10.0.0.2 10.0.0.2)
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atf_check -s not-exit:0 -x "cat ./out |grep -q '$pkt'"
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atf_check -s exit:0 rump.ifconfig -w 10
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atf_check -s exit:0 rump.ifconfig shmif0 inet 10.0.0.3/24
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atf_check -s exit:0 rump.ifconfig shmif0 inet 10.0.0.4/24 alias
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# No GARP packets are sent during IFF_UP
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shmif_dumpbus -p - bus1 2>/dev/null| tcpdump -n -e -r - > ./out
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pkt=$(make_pkt_str_arpreq 10.0.0.3 10.0.0.3)
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atf_check -s not-exit:0 -x "cat ./out |grep -q '$pkt'"
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pkt=$(make_pkt_str_arpreq 10.0.0.4 10.0.0.4)
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atf_check -s not-exit:0 -x "cat ./out |grep -q '$pkt'"
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rump_server_destroy_ifaces
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}
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arp_cache_overwriting_body()
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{
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local arp_keep=5
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local bonus=2
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rump_server_start $SOCKSRC
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rump_server_start $SOCKDST
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setup_dst_server
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setup_src_server $arp_keep
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export RUMP_SERVER=$SOCKSRC
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# Cannot overwrite a permanent cache
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atf_check -s not-exit:0 -e match:'File exists' \
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rump.arp -s $IP4SRC b2:a0:20:00:00:ff
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$DEBUG && rump.arp -n -a
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atf_check -s exit:0 -o ignore rump.ping -n -w $TIMEOUT -c 1 $IP4DST
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$DEBUG && rump.arp -n -a
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# Can overwrite a dynamic cache
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atf_check -s exit:0 -o ignore rump.arp -s $IP4DST b2:a0:20:00:00:00
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$DEBUG && rump.arp -n -a
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atf_check -s exit:0 -o match:'b2:a0:20:00:00:00' rump.arp -n $IP4DST
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atf_check -s exit:0 -o match:'permanent' rump.arp -n $IP4DST
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atf_check -s exit:0 -o ignore rump.arp -s 10.0.1.10 b2:a0:20:00:00:10 temp
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$DEBUG && rump.arp -n -a
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atf_check -s exit:0 -o match:'b2:a0:20:00:00:10' rump.arp -n 10.0.1.10
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atf_check -s exit:0 -o not-match:'permanent' rump.arp -n 10.0.1.10
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# Can overwrite a temp cache
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atf_check -s exit:0 -o ignore rump.arp -s 10.0.1.10 b2:a0:20:00:00:ff
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atf_check -s exit:0 -o match:'b2:a0:20:00:00:ff' rump.arp -n 10.0.1.10
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$DEBUG && rump.arp -n -a
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rump_server_destroy_ifaces
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}
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make_pkt_str_arprep()
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{
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local ip=$1
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local mac=$2
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pkt="ethertype ARP (0x0806), length 42: "
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pkt="Reply $ip is-at $mac, length 28"
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echo $pkt
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}
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make_pkt_str_garp()
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{
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local ip=$1
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local mac=$2
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local pkt=
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pkt="$mac > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806),"
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pkt="$pkt length 42: Request who-has $ip tell $ip, length 28"
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echo $pkt
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}
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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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rump_server_start $SOCKSRC
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rump_server_start $SOCKDST tap
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setup_dst_server
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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=$(get_macaddr $SOCKDST shmif0)
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if [ "$type" = "pub" ]; then
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opts="pub"
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title="permanent published"
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else
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opts="pub proxy"
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title='permanent published \(proxy only\)'
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fi
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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 $IP4DST_PROXYARP1
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# Flushing
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extract_new_packets bus1 > ./out
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# Set up proxy ARP entry
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export RUMP_SERVER=$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 $IP4DST_PROXYARP1
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# Try to ping
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export RUMP_SERVER=$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 $IP4DST_PROXYARP1
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fi
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extract_new_packets bus1 > ./out
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$DEBUG && cat ./out
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pkt1=$(make_pkt_str_arprep $IP4DST_PROXYARP1 $macaddr_dst)
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pkt2=$(make_pkt_str_garp $IP4DST_PROXYARP1 $macaddr_dst)
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if [ "$type" = "pub" ]; then
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atf_check -s not-exit:0 -x \
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"cat ./out |grep -q -e '$pkt1' -e '$pkt2'"
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else
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atf_check -s exit:0 -x "cat ./out |grep -q -e '$pkt1' -e '$pkt2'"
|
|
fi
|
|
|
|
#
|
|
# Test#2: Create proxy arp entry then set up an endpoint
|
|
#
|
|
export RUMP_SERVER=$SOCKDST
|
|
atf_check -s exit:0 -o ignore \
|
|
rump.arp -s $IP4DST_PROXYARP2 $macaddr_dst $opts
|
|
atf_check -s exit:0 -o match:"$title" rump.arp -n $IP4DST_PROXYARP2
|
|
$DEBUG && rump.netstat -nr -f inet
|
|
|
|
# Try to ping (should fail because no endpoint exists)
|
|
export RUMP_SERVER=$SOCKSRC
|
|
atf_check -s not-exit:0 -o ignore -e ignore \
|
|
rump.ping -n -w 1 -c 1 $IP4DST_PROXYARP2
|
|
|
|
extract_new_packets bus1 > ./out
|
|
$DEBUG && cat ./out
|
|
|
|
# ARP reply should be sent
|
|
pkt=$(make_pkt_str_arprep $IP4DST_PROXYARP2 $macaddr_dst)
|
|
atf_check -s exit:0 -x "cat ./out |grep -q '$pkt'"
|
|
|
|
export RUMP_SERVER=$SOCKDST
|
|
atf_check -s exit:0 rump.ifconfig tap2 create
|
|
atf_check -s exit:0 rump.ifconfig tap2 $IP4DST_PROXYARP2/24 up
|
|
atf_check -s exit:0 rump.ifconfig -w 10
|
|
|
|
# Try to ping
|
|
export RUMP_SERVER=$SOCKSRC
|
|
atf_check -s exit:0 -o ignore rump.ping -n -w 1 -c 1 $IP4DST_PROXYARP2
|
|
}
|
|
|
|
arp_proxy_arp_pub_body()
|
|
{
|
|
|
|
test_proxy_arp pub
|
|
rump_server_destroy_ifaces
|
|
}
|
|
|
|
arp_proxy_arp_pubproxy_body()
|
|
{
|
|
|
|
test_proxy_arp pubproxy
|
|
rump_server_destroy_ifaces
|
|
}
|
|
|
|
arp_link_activation_body()
|
|
{
|
|
local arp_keep=5
|
|
local bonus=2
|
|
|
|
rump_server_start $SOCKSRC
|
|
rump_server_start $SOCKDST
|
|
|
|
setup_dst_server
|
|
setup_src_server $arp_keep
|
|
|
|
# flush old packets
|
|
extract_new_packets bus1 > ./out
|
|
|
|
export RUMP_SERVER=$SOCKSRC
|
|
|
|
atf_check -s exit:0 -o ignore rump.ifconfig shmif0 link \
|
|
b2:a1:00:00:00:01
|
|
|
|
atf_check -s exit:0 sleep 1
|
|
extract_new_packets bus1 > ./out
|
|
$DEBUG && cat ./out
|
|
|
|
pkt=$(make_pkt_str_arpreq $IP4SRC $IP4SRC)
|
|
atf_check -s not-exit:0 -x "cat ./out |grep -q '$pkt'"
|
|
|
|
atf_check -s exit:0 -o ignore rump.ifconfig shmif0 link \
|
|
b2:a1:00:00:00:02 active
|
|
|
|
atf_check -s exit:0 sleep 1
|
|
extract_new_packets bus1 > ./out
|
|
$DEBUG && cat ./out
|
|
|
|
pkt=$(make_pkt_str_arpreq $IP4SRC $IP4SRC)
|
|
atf_check -s exit:0 -x \
|
|
"cat ./out |grep '$pkt' |grep -q 'b2:a1:00:00:00:02'"
|
|
|
|
rump_server_destroy_ifaces
|
|
}
|
|
|
|
arp_static_body()
|
|
{
|
|
local arp_keep=5
|
|
local macaddr_src=
|
|
|
|
rump_server_start $SOCKSRC
|
|
rump_server_start $SOCKDST
|
|
|
|
setup_dst_server
|
|
setup_src_server $arp_keep
|
|
|
|
macaddr_src=$(get_macaddr $SOCKSRC shmif0)
|
|
|
|
# Set a (valid) static ARP entry for the src server
|
|
export RUMP_SERVER=$SOCKDST
|
|
$DEBUG && rump.arp -n -a
|
|
atf_check -s exit:0 -o ignore rump.arp -s $IP4SRC $macaddr_src
|
|
$DEBUG && rump.arp -n -a
|
|
|
|
# Test receiving an ARP request with the static ARP entry (as spa/sha)
|
|
export RUMP_SERVER=$SOCKSRC
|
|
atf_check -s exit:0 -o ignore rump.ping -n -w 1 -c 1 $IP4DST
|
|
|
|
rump_server_destroy_ifaces
|
|
}
|
|
|
|
arp_cache_expiration_5s_cleanup()
|
|
{
|
|
$DEBUG && dump
|
|
cleanup
|
|
}
|
|
|
|
arp_cache_expiration_10s_cleanup()
|
|
{
|
|
$DEBUG && dump
|
|
cleanup
|
|
}
|
|
|
|
arp_command_cleanup()
|
|
{
|
|
$DEBUG && dump
|
|
cleanup
|
|
}
|
|
|
|
arp_garp_cleanup()
|
|
{
|
|
$DEBUG && dump
|
|
cleanup
|
|
}
|
|
|
|
arp_cache_overwriting_cleanup()
|
|
{
|
|
$DEBUG && dump
|
|
cleanup
|
|
}
|
|
|
|
arp_proxy_arp_pub_cleanup()
|
|
{
|
|
$DEBUG && dump
|
|
cleanup
|
|
}
|
|
|
|
arp_proxy_arp_pubproxy_cleanup()
|
|
{
|
|
$DEBUG && dump
|
|
cleanup
|
|
}
|
|
|
|
arp_link_activation_cleanup()
|
|
{
|
|
$DEBUG && dump
|
|
cleanup
|
|
}
|
|
|
|
arp_static_cleanup()
|
|
{
|
|
$DEBUG && dump
|
|
cleanup
|
|
}
|
|
|
|
atf_init_test_cases()
|
|
{
|
|
atf_add_test_case arp_cache_expiration_5s
|
|
atf_add_test_case arp_cache_expiration_10s
|
|
atf_add_test_case arp_command
|
|
atf_add_test_case arp_garp
|
|
atf_add_test_case arp_cache_overwriting
|
|
atf_add_test_case arp_proxy_arp_pub
|
|
atf_add_test_case arp_proxy_arp_pubproxy
|
|
atf_add_test_case arp_link_activation
|
|
atf_add_test_case arp_static
|
|
}
|