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Diffstat (limited to 'contrib/netbsd-tests/net/net/t_mtudisc.sh')
| -rwxr-xr-x | contrib/netbsd-tests/net/net/t_mtudisc.sh | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/net/net/t_mtudisc.sh b/contrib/netbsd-tests/net/net/t_mtudisc.sh new file mode 100755 index 0000000..a99d652 --- /dev/null +++ b/contrib/netbsd-tests/net/net/t_mtudisc.sh @@ -0,0 +1,192 @@ +# $NetBSD: t_mtudisc.sh,v 1.8 2016/12/21 01:16:18 ozaki-r Exp $ +# +# Copyright (c) 2016 Internet Initiative Japan 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. +# + +SOCKLOCAL=unix://commsock1 +SOCKGATEWAY=unix://commsock2 +SOCKREMOTE=unix://commsock3 +HTML_FILE=index.html + +DEBUG=${DEBUG:-false} + +atf_test_case mtudisc_basic cleanup + +mtudisc_basic_head() +{ + atf_set "descr" "Tests for IPv4 Path MTU Dicorvery basic behavior" + atf_set "require.progs" "rump_server" +} + +setup_server() +{ + local sock=$1 + local if=$2 + local bus=$3 + local ip=$4 + + rump_server_add_iface $sock $if $bus + + export RUMP_SERVER=$sock + atf_check -s exit:0 rump.ifconfig $if $ip + atf_check -s exit:0 rump.ifconfig $if up + atf_check -s exit:0 rump.ifconfig -w 10 + + $DEBUG && rump.ifconfig $if +} + +prepare_download_file() +{ + local file=$1 + local data="0123456789" + + touch $file + for i in `seq 1 512` + do + echo $data >> $file + done +} + +do_http_get() +{ + local ip=$1 + local ret=$2 + local timeout=5 + + # get the webpage + atf_check -s exit:$ret env LD_PRELOAD=/usr/lib/librumphijack.so \ + ftp -q $timeout -o ./out http://$ip/$HTML_FILE +} + +mtudisc_basic_body() +{ + local pkt= + local local_ip=10.0.0.2 + local gateway_local_ip=10.0.0.1 + local gateway_remote_ip=10.0.1.1 + local remote_ip=10.0.1.2 + local prefixlen=24 + + rump_server_start $SOCKLOCAL + rump_server_start $SOCKGATEWAY + rump_server_start $SOCKREMOTE + + # + # Setup servers + # + # [local server] [gateway server] [remote server with httpd] + # | 10.0.0.2 10.0.0.1 | | 10.0.1.1 10.0.1.2 | + # shmif0(mtu=1500) ----- shmif1(mtu=1280) shmif0(mtu=1500) ----- shmif0(mtu=1500) + # + + # Assign IP addresses + setup_server $SOCKLOCAL shmif0 bus1 $local_ip/$prefixlen + setup_server $SOCKGATEWAY shmif0 bus1 $gateway_local_ip/$prefixlen + setup_server $SOCKGATEWAY shmif1 bus2 $gateway_remote_ip/$prefixlen + setup_server $SOCKREMOTE shmif0 bus2 $remote_ip/$prefixlen + + ### Setup gateway server + export RUMP_SERVER=$SOCKGATEWAY + + # Set mtu of shmif0 to 1280 + export RUMP_SERVER=$SOCKGATEWAY + atf_check -s exit:0 rump.ifconfig shmif0 mtu 1280 + + # Enable IPv4 forwarding + atf_check -s exit:0 rump.sysctl -w -q net.inet.ip.forwarding=1 + + ### Setup remote server + export RUMP_SERVER=$SOCKREMOTE + + # Check default value + atf_check -s exit:0 -o match:"1" rump.sysctl -n net.inet.ip.mtudisc + + # Start httpd daemon + prepare_download_file $HTML_FILE + start_httpd $SOCKREMOTE $remote_ip + $DEBUG && rump.netstat -a -f inet + + # Teach the peer thar 10.0.0.2(local serer) is behind 10.0.1.1(gateway server) + atf_check -s exit:0 -o ignore rump.route add $local_ip/32 $gateway_remote_ip + + ### Setup local server + export RUMP_SERVER=$SOCKLOCAL + + # Teach the peer thar 10.0.1.2(remote serer) is behind 10.0.0.1(gateway server) + atf_check -s exit:0 -o ignore rump.route add $remote_ip/32 $gateway_local_ip + + # Don't accept fragmented packets + atf_check -s exit:0 -o ignore rump.sysctl -w -q net.inet.ip.maxfragpackets=0 + + # + # Test disabled path mtu discorvery + # + export RUMP_SERVER=$SOCKREMOTE + atf_check -s exit:0 -o ignore rump.sysctl -w -q net.inet.ip.mtudisc=0 + + # Get the webpage (expect: failed) + export RUMP_SERVER=$SOCKLOCAL + do_http_get $remote_ip 1 + $DEBUG && extract_new_packets bus2 > ./out + $DEBUG && cat ./out + + # Check path mtu size on remote server + export RUMP_SERVER=$SOCKREMOTE + atf_check -s exit:0 \ + -o match:"^10.0.0.2 +10.0.1.1 +UGHS +- +- +- +shmif0" \ + rump.netstat -nr -f inet + + # + # Test enabled path mtu discorvery + # + export RUMP_SERVER=$SOCKREMOTE + atf_check -s exit:0 -o ignore rump.sysctl -w -q net.inet.ip.mtudisc=1 + + # Get the webpage (expect: success) + export RUMP_SERVER=$SOCKLOCAL + do_http_get $remote_ip 0 + $DEBUG && extract_new_packets bus2 > ./out + $DEBUG && cat ./out + + # Check path mtu size on remote server + export RUMP_SERVER=$SOCKREMOTE + atf_check -s exit:0 \ + -o match:"^10.0.0.2 +10.0.1.1 +UGHS +- +- +1280 +shmif0" \ + rump.netstat -nr -f inet + + rump_server_destroy_ifaces +} + +mtudisc_basic_cleanup() +{ + $DEBUG && dump + stop_httpd + cleanup +} + +atf_init_test_cases() +{ + atf_add_test_case mtudisc_basic +} |
