tests/net/ndp/t_dad.sh

   1 #       $NetBSD: t_dad.sh,v 1.4 2015/08/24 02:02:25 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"
  29 inetserver="$inetserver -lrumpnet_netinet6 -lrumpnet_shmif"
  30 HIJACKING="env LD_PRELOAD=/usr/lib/librumphijack.so RUMPHIJACK=sysctl=yes"
  31
  32 SOCKLOCAL=unix://commsock1
  33 SOCKPEER=unix://commsock2
  34
  35 DEBUG=false
  36
  37 atf_test_case dad_basic cleanup
  38 atf_test_case dad_duplicated cleanup
  39
  40 dad_basic_head()
  41 {
  42         atf_set "descr" "Tests for IPv6 DAD basic behavior"
  43         atf_set "require.progs" "rump_server"
  44 }
  45
  46 dad_duplicated_head()
  47 {
  48         atf_set "descr" "Tests for IPv6 DAD duplicated state"
  49         atf_set "require.progs" "rump_server"
  50 }
  51
  52 setup_server()
  53 {
  54         local sock=$1
  55         local ip=$2
  56
  57         export RUMP_SERVER=$sock
  58
  59         atf_check -s exit:0 rump.ifconfig shmif0 create
  60         atf_check -s exit:0 rump.ifconfig shmif0 linkstr bus1
  61         atf_check -s exit:0 rump.ifconfig shmif0 inet6 $ip
  62         atf_check -s exit:0 rump.ifconfig shmif0 up
  63         atf_check -s exit:0 rump.ifconfig -w 10
  64
  65         $DEBUG && rump.ifconfig shmif0
  66 }
  67
  68 make_ns_pkt_str()
  69 {
  70         local id=$1
  71         local target=$2
  72         pkt="33:33:ff:00:00:0${id}, ethertype IPv6 (0x86dd), length 78: ::"
  73         pkt="$pkt > ff02::1:ff00:${id}: ICMP6, neighbor solicitation,"
  74         pkt="$pkt who has $target, length 24"
  75         echo $pkt
  76 }
  77
  78 extract_new_packets()
  79 {
  80         local old=./old
  81
  82         if [ ! -f $old ]; then
  83                 old=/dev/null
  84         fi
  85
  86         shmif_dumpbus -p - bus1 2>/dev/null| \
  87             tcpdump -n -e -r - 2>/dev/null > ./new
  88         diff -u $old ./new |grep '^+' |cut -d '+' -f 2 > ./diff
  89         mv -f ./new ./old
  90         cat ./diff
  91 }
  92
  93 dad_basic_body()
  94 {
  95         local pkt=
  96         local localip1=fc00::1
  97         local localip2=fc00::2
  98         local localip3=fc00::3
  99
 100         atf_check -s exit:0 ${inetserver} $SOCKLOCAL
 101         export RUMP_SERVER=$SOCKLOCAL
 102
 103         atf_check -s exit:0 rump.ifconfig shmif0 create
 104         atf_check -s exit:0 rump.ifconfig shmif0 linkstr bus1
 105         atf_check -s exit:0 rump.ifconfig shmif0 inet6 $localip1
 106         atf_check -s exit:0 rump.ifconfig shmif0 inet6 $localip2
 107         $DEBUG && rump.ifconfig shmif0
 108
 109         atf_check -s exit:0 rump.ifconfig shmif0 up
 110         rump.ifconfig shmif0 > ./out
 111         $DEBUG && cat ./out
 112
 113         # The primary address doesn't start with tentative state
 114         atf_check -s not-exit:0 -x "cat ./out |grep $localip1 |grep -q tentative"
 115         # The alias address starts with tentative state
 116         # XXX we have no stable way to check this, so skip for now
 117         #atf_check -s exit:0 -x "cat ./out |grep $localip2 |grep -q tentative"
 118
 119         atf_check -s exit:0 sleep 2
 120         extract_new_packets > ./out
 121         $DEBUG && cat ./out
 122
 123         # Check DAD probe packets (Neighbor Solicitation Message)
 124         pkt=$(make_ns_pkt_str 2 $localip2)
 125         atf_check -s exit:0 -x "cat ./out |grep -q '$pkt'"
 126         # No DAD for the primary address
 127         pkt=$(make_ns_pkt_str 1 $localip1)
 128         atf_check -s not-exit:0 -x "cat ./out |grep -q '$pkt'"
 129
 130         # Waiting for DAD complete
 131         atf_check -s exit:0 rump.ifconfig -w 10
 132         extract_new_packets > ./out
 133         $DEBUG && cat ./out
 134
 135         # IPv6 DAD doesn't announce (Neighbor Advertisement Message)
 136
 137         # The alias address left tentative
 138         atf_check -s not-exit:0 -x "rump.ifconfig shmif0 |grep $localip2 |grep -q tentative"
 139
 140         #
 141         # Add a new address on the fly
 142         #
 143         atf_check -s exit:0 rump.ifconfig shmif0 inet6 $localip3
 144
 145         # The new address starts with tentative state
 146         # XXX we have no stable way to check this, so skip for now
 147         #atf_check -s exit:0 -x "rump.ifconfig shmif0 |grep $localip3 |grep -q tentative"
 148
 149         # Check DAD probe packets (Neighbor Solicitation Message)
 150         atf_check -s exit:0 sleep 2
 151         extract_new_packets > ./out
 152         $DEBUG && cat ./out
 153         pkt=$(make_ns_pkt_str 3 $localip3)
 154         atf_check -s exit:0 -x "cat ./out |grep -q '$pkt'"
 155
 156         # Waiting for DAD complete
 157         atf_check -s exit:0 rump.ifconfig -w 10
 158         extract_new_packets > ./out
 159         $DEBUG && cat ./out
 160
 161         # IPv6 DAD doesn't announce (Neighbor Advertisement Message)
 162
 163         # The new address left tentative
 164         atf_check -s not-exit:0 -x "rump.ifconfig shmif0 |grep $localip3 |grep -q tentative"
 165 }
 166
 167 dad_duplicated_body()
 168 {
 169         local localip1=fc00::1
 170         local localip2=fc00::11
 171         local peerip=fc00::2
 172
 173         atf_check -s exit:0 ${inetserver} $SOCKLOCAL
 174         atf_check -s exit:0 ${inetserver} $SOCKPEER
 175
 176         setup_server $SOCKLOCAL $localip1
 177         setup_server $SOCKPEER $peerip
 178
 179         export RUMP_SERVER=$SOCKLOCAL
 180
 181         # The primary address isn't marked as duplicated
 182         atf_check -s not-exit:0 -x "rump.ifconfig shmif0 |grep $localip1 |grep -q duplicated"
 183
 184         #
 185         # Add a new address duplicated with the peer server
 186         #
 187         atf_check -s exit:0 rump.ifconfig shmif0 inet6 $peerip
 188         atf_check -s exit:0 sleep 1
 189
 190         # The new address is marked as duplicated
 191         atf_check -s exit:0 -x "rump.ifconfig shmif0 |grep $peerip |grep -q duplicated"
 192
 193         # A unique address isn't marked as duplicated
 194         atf_check -s exit:0 rump.ifconfig shmif0 inet6 $localip2
 195         atf_check -s exit:0 sleep 1
 196         atf_check -s not-exit:0 -x "rump.ifconfig shmif0 |grep $localip2 |grep -q duplicated"
 197 }
 198
 199 cleanup()
 200 {
 201         gdb -ex bt /usr/bin/rump_server rump_server.core
 202         gdb -ex bt /usr/sbin/arp arp.core
 203         env RUMP_SERVER=$SOCKLOCAL rump.halt
 204         env RUMP_SERVER=$SOCKPEER rump.halt
 205 }
 206
 207 dump_local()
 208 {
 209         export RUMP_SERVER=$SOCKLOCAL
 210         rump.netstat -nr
 211         rump.arp -n -a
 212         rump.ifconfig
 213         $HIJACKING dmesg
 214 }
 215
 216 dump_peer()
 217 {
 218         export RUMP_SERVER=$SOCKPEER
 219         rump.netstat -nr
 220         rump.arp -n -a
 221         rump.ifconfig
 222         $HIJACKING dmesg
 223 }
 224
 225 dump()
 226 {
 227         dump_local
 228         dump_peer
 229         shmif_dumpbus -p - bus1 2>/dev/null| tcpdump -n -e -r -
 230 }
 231
 232 dad_basic_cleanup()
 233 {
 234         $DEBUG && dump_local
 235         $DEBUG && shmif_dumpbus -p - bus1 2>/dev/null| tcpdump -n -e -r -
 236         env RUMP_SERVER=$SOCKLOCAL rump.halt
 237 }
 238
 239 dad_duplicated_cleanup()
 240 {
 241         $DEBUG && dump
 242         cleanup
 243 }
 244
 245 atf_init_test_cases()
 246 {
 247         atf_add_test_case dad_basic
 248         atf_add_test_case dad_duplicated
 249 }