tests/net/arp/t_dad.sh

   1 #       $NetBSD: t_dad.sh,v 1.6 2015/08/25 02:24:34 ozaki-r Exp $
   2 #
   3 # Copyright (c) 2015 The NetBSD Foundation, Inc.
   4 # All rights reserved.
   5 #
   6 # Redistribution and use in source and binary forms, with or without
   7 # modification, are permitted provided that the following conditions
   8 # are met:
   9 # 1. Redistributions of source code must retain the above copyright
  10 #    notice, this list of conditions and the following disclaimer.
  11 # 2. Redistributions in binary form must reproduce the above copyright
  12 #    notice, this list of conditions and the following disclaimer in the
  13 #    documentation and/or other materials provided with the distribution.
  14 #
  15 # THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  16 # ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  17 # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  18 # PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  19 # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  20 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  21 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  22 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  23 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  24 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  25 # POSSIBILITY OF SUCH DAMAGE.
  26 #
  27
  28 inetserver="rump_server -lrumpnet -lrumpnet_net -lrumpnet_netinet -lrumpnet_shmif"
  29 HIJACKING="env LD_PRELOAD=/usr/lib/librumphijack.so RUMPHIJACK=sysctl=yes"
  30
  31 SOCKLOCAL=unix://commsock1
  32 SOCKPEER=unix://commsock2
  33
  34 DEBUG=false
  35
  36 atf_test_case dad_basic cleanup
  37 atf_test_case dad_duplicated cleanup
  38
  39 dad_basic_head()
  40 {
  41         atf_set "descr" "Tests for IPv4 DAD basic behavior"
  42         atf_set "require.progs" "rump_server"
  43 }
  44
  45 dad_duplicated_head()
  46 {
  47         atf_set "descr" "Tests for IPv4 DAD duplicated state"
  48         atf_set "require.progs" "rump_server"
  49 }
  50
  51 setup_server()
  52 {
  53         local sock=$1
  54         local ip=$2
  55
  56         export RUMP_SERVER=$sock
  57
  58         atf_check -s exit:0 rump.ifconfig shmif0 create
  59         atf_check -s exit:0 rump.ifconfig shmif0 linkstr bus1
  60         atf_check -s exit:0 rump.ifconfig shmif0 inet $ip/24
  61         atf_check -s exit:0 rump.ifconfig shmif0 up
  62         atf_check -s exit:0 rump.ifconfig -w 10
  63
  64         $DEBUG && rump.ifconfig shmif0
  65 }
  66
  67 make_pkt_str()
  68 {
  69         local target=$1
  70         local sender=$2
  71         pkt="> ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42:"
  72         pkt="$pkt Request who-has $target tell $sender, length 28"
  73         echo $pkt
  74 }
  75
  76 extract_new_packets()
  77 {
  78         local old=./old
  79
  80         if [ ! -f $old ]; then
  81                 old=/dev/null
  82         fi
  83
  84         shmif_dumpbus -p - bus1 2>/dev/null| \
  85             tcpdump -n -e -r - 2>/dev/null > ./new
  86         diff -u $old ./new |grep '^+' |cut -d '+' -f 2 > ./diff
  87         mv -f ./new ./old
  88         cat ./diff
  89 }
  90
  91 dad_basic_body()
  92 {
  93         local pkt=
  94
  95         atf_check -s exit:0 ${inetserver} $SOCKLOCAL
  96         export RUMP_SERVER=$SOCKLOCAL
  97
  98         atf_check -s exit:0 rump.ifconfig shmif0 create
  99         atf_check -s exit:0 rump.ifconfig shmif0 linkstr bus1
 100         atf_check -s exit:0 rump.ifconfig shmif0 inet 10.0.0.1/24
 101         atf_check -s exit:0 rump.ifconfig shmif0 inet 10.0.0.2/24 alias
 102         $DEBUG && rump.ifconfig shmif0
 103
 104         atf_check -s exit:0 rump.ifconfig shmif0 up
 105         rump.ifconfig shmif0 > ./out
 106         $DEBUG && cat ./out
 107
 108         # The primary address doesn't start with tentative state
 109         atf_check -s not-exit:0 -x "cat ./out |grep 10.0.0.1 |grep -q tentative"
 110         # The alias address starts with tentative state
 111         # XXX we have no stable way to check this, so skip for now
 112         #atf_check -s exit:0 -x "cat ./out |grep 10.0.0.2 |grep -q tentative"
 113
 114         atf_check -s exit:0 sleep 2
 115         extract_new_packets > ./out
 116         $DEBUG && cat ./out
 117
 118         # Check DAD probe packets
 119         pkt=$(make_pkt_str 10.0.0.2 0.0.0.0)
 120         atf_check -s exit:0 -x "cat ./out |grep -q '$pkt'"
 121         # No DAD for the primary address
 122         pkt=$(make_pkt_str 10.0.0.1 0.0.0.0)
 123         atf_check -s not-exit:0 -x "cat ./out |grep -q '$pkt'"
 124
 125         # Waiting for DAD complete
 126         atf_check -s exit:0 rump.ifconfig -w 10
 127         # Give a chance to send a DAD announce packet
 128         atf_check -s exit:0 sleep 1
 129         extract_new_packets > ./out
 130         $DEBUG && cat ./out
 131
 132         # Check the DAD announce packet
 133         pkt=$(make_pkt_str 10.0.0.2 10.0.0.2)
 134         atf_check -s exit:0 -x "cat ./out |grep -q '$pkt'"
 135         # The alias address left tentative
 136         atf_check -s not-exit:0 -x "rump.ifconfig shmif0 |grep 10.0.0.2 |grep -q tentative"
 137
 138         #
 139         # Add a new address on the fly
 140         #
 141         atf_check -s exit:0 rump.ifconfig shmif0 inet 10.0.0.3/24 alias
 142
 143         # The new address starts with tentative state
 144         # XXX we have no stable way to check this, so skip for now
 145         #atf_check -s exit:0 -x "rump.ifconfig shmif0 |grep 10.0.0.3 |grep -q tentative"
 146
 147         # Check DAD probe packets
 148         atf_check -s exit:0 sleep 2
 149         extract_new_packets > ./out
 150         $DEBUG && cat ./out
 151         pkt=$(make_pkt_str 10.0.0.3 0.0.0.0)
 152         atf_check -s exit:0 -x "cat ./out |grep -q '$pkt'"
 153
 154         # Waiting for DAD complete
 155         atf_check -s exit:0 rump.ifconfig -w 10
 156         # Give a chance to send a DAD announce packet
 157         atf_check -s exit:0 sleep 1
 158         extract_new_packets > ./out
 159         $DEBUG && cat ./out
 160
 161         # Check the DAD announce packet
 162         pkt=$(make_pkt_str 10.0.0.3 10.0.0.3)
 163         atf_check -s exit:0 -x "cat ./out |grep -q '$pkt'"
 164         # The new address left tentative
 165         atf_check -s not-exit:0 -x "rump.ifconfig shmif0 |grep 10.0.0.3 |grep -q tentative"
 166 }
 167
 168 dad_duplicated_body()
 169 {
 170         local localip1=10.0.1.1
 171         local localip2=10.0.1.11
 172         local peerip=10.0.1.2
 173
 174         atf_check -s exit:0 ${inetserver} $SOCKLOCAL
 175         atf_check -s exit:0 ${inetserver} $SOCKPEER
 176
 177         setup_server $SOCKLOCAL $localip1
 178         setup_server $SOCKPEER $peerip
 179
 180         export RUMP_SERVER=$SOCKLOCAL
 181
 182         # The primary address isn't marked as duplicated
 183         atf_check -s not-exit:0 -x "rump.ifconfig shmif0 |grep $localip1 |grep -q duplicated"
 184
 185         #
 186         # Add a new address duplicated with the peer server
 187         #
 188         atf_check -s exit:0 rump.ifconfig shmif0 inet $peerip alias
 189         atf_check -s exit:0 sleep 1
 190
 191         # The new address is marked as duplicated
 192         atf_check -s exit:0 -x "rump.ifconfig shmif0 |grep $peerip |grep -q duplicated"
 193
 194         # A unique address isn't marked as duplicated
 195         atf_check -s exit:0 rump.ifconfig shmif0 inet $localip2 alias
 196         atf_check -s exit:0 sleep 1
 197         atf_check -s not-exit:0 -x "rump.ifconfig shmif0 |grep $localip2 |grep -q duplicated"
 198 }
 199
 200 cleanup()
 201 {
 202         env RUMP_SERVER=$SOCKLOCAL rump.halt
 203         env RUMP_SERVER=$SOCKPEER rump.halt
 204 }
 205
 206 dump_local()
 207 {
 208         export RUMP_SERVER=$SOCKLOCAL
 209         rump.netstat -nr
 210         rump.arp -n -a
 211         rump.ifconfig
 212         $HIJACKING dmesg
 213 }
 214
 215 dump_peer()
 216 {
 217         export RUMP_SERVER=$SOCKPEER
 218         rump.netstat -nr
 219         rump.arp -n -a
 220         rump.ifconfig
 221         $HIJACKING dmesg
 222 }
 223
 224 dump()
 225 {
 226         dump_local
 227         dump_peer
 228         shmif_dumpbus -p - bus1 2>/dev/null| tcpdump -n -e -r -
 229 }
 230
 231 dad_basic_cleanup()
 232 {
 233         $DEBUG && dump_local
 234         $DEBUG && shmif_dumpbus -p - bus1 2>/dev/null| tcpdump -n -e -r -
 235         env RUMP_SERVER=$SOCKLOCAL rump.halt
 236 }
 237
 238 dad_duplicated_cleanup()
 239 {
 240         $DEBUG && dump
 241         cleanup
 242 }
 243
 244 atf_init_test_cases()
 245 {
 246         atf_add_test_case dad_basic
 247         atf_add_test_case dad_duplicated
 248 }