tests/net/arp/t_arp.sh

   1 #       $NetBSD: t_arp.sh,v 1.9 2015/08/31 08:08:20 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 SOCKSRC=unix://commsock1
  32 SOCKDST=unix://commsock2
  33 IP4SRC=10.0.1.1
  34 IP4DST=10.0.1.2
  35
  36 DEBUG=false
  37 TIMEOUT=1
  38
  39 atf_test_case cache_expiration_5s cleanup
  40 atf_test_case cache_expiration_10s cleanup
  41 atf_test_case command cleanup
  42 atf_test_case garp cleanup
  43 atf_test_case cache_overwriting cleanup
  44
  45 cache_expiration_5s_head()
  46 {
  47         atf_set "descr" "Tests for ARP cache expiration (5s)"
  48         atf_set "require.progs" "rump_server"
  49 }
  50
  51 cache_expiration_10s_head()
  52 {
  53         atf_set "descr" "Tests for ARP cache expiration (10s)"
  54         atf_set "require.progs" "rump_server"
  55 }
  56
  57 command_head()
  58 {
  59         atf_set "descr" "Tests for commands of arp(8)"
  60         atf_set "require.progs" "rump_server"
  61 }
  62
  63 garp_head()
  64 {
  65         atf_set "descr" "Tests for GARP"
  66         atf_set "require.progs" "rump_server"
  67 }
  68
  69 cache_overwriting_head()
  70 {
  71         atf_set "descr" "Tests for behavior of overwriting ARP caches"
  72         atf_set "require.progs" "rump_server"
  73 }
  74
  75 setup_dst_server()
  76 {
  77         export RUMP_SERVER=$SOCKDST
  78         atf_check -s exit:0 rump.ifconfig shmif0 create
  79         atf_check -s exit:0 rump.ifconfig shmif0 linkstr bus1
  80         atf_check -s exit:0 rump.ifconfig shmif0 inet $IP4DST/24
  81         atf_check -s exit:0 rump.ifconfig shmif0 up
  82         atf_check -s exit:0 rump.ifconfig -w 10
  83
  84         $DEBUG && rump.ifconfig shmif0
  85         $DEBUG && rump.arp -n -a
  86 }
  87
  88 setup_src_server()
  89 {
  90         local keep=$1
  91
  92         export RUMP_SERVER=$SOCKSRC
  93
  94         # Adjust ARP parameters
  95         atf_check -s exit:0 -o ignore rump.sysctl -w net.inet.arp.keep=$keep
  96
  97         # Setup an interface
  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 $IP4SRC/24
 101         atf_check -s exit:0 rump.ifconfig shmif0 up
 102         atf_check -s exit:0 rump.ifconfig -w 10
 103
 104         # Sanity check
 105         $DEBUG && rump.ifconfig shmif0
 106         $DEBUG && rump.arp -n -a
 107         atf_check -s exit:0 -o ignore rump.arp -n $IP4SRC
 108         atf_check -s not-exit:0 -e ignore rump.arp -n $IP4DST
 109 }
 110
 111 test_cache_expiration()
 112 {
 113         local arp_keep=$1
 114         local bonus=2
 115
 116         atf_check -s exit:0 ${inetserver} $SOCKSRC
 117         atf_check -s exit:0 ${inetserver} $SOCKDST
 118
 119         setup_dst_server
 120         setup_src_server $arp_keep
 121
 122         #
 123         # Check if a cache is expired expectedly
 124         #
 125         export RUMP_SERVER=$SOCKSRC
 126         atf_check -s exit:0 -o ignore rump.ping -n -w $TIMEOUT -c 1 $IP4DST
 127
 128         $DEBUG && rump.arp -n -a
 129         atf_check -s exit:0 -o ignore rump.arp -n $IP4SRC
 130         # Should be cached
 131         atf_check -s exit:0 -o ignore rump.arp -n $IP4DST
 132
 133         atf_check -s exit:0 sleep $(($arp_keep + $bonus))
 134
 135         $DEBUG && rump.arp -n -a
 136         atf_check -s exit:0 -o ignore rump.arp -n $IP4SRC
 137         # Should be expired
 138         atf_check -s not-exit:0 -e ignore rump.arp -n $IP4DST
 139 }
 140
 141 cache_expiration_5s_body()
 142 {
 143         test_cache_expiration 5
 144 }
 145
 146 cache_expiration_10s_body()
 147 {
 148         test_cache_expiration 10
 149 }
 150
 151 command_body()
 152 {
 153         local arp_keep=5
 154         local bonus=2
 155
 156         atf_check -s exit:0 ${inetserver} $SOCKSRC
 157         atf_check -s exit:0 ${inetserver} $SOCKDST
 158
 159         setup_dst_server
 160         setup_src_server $arp_keep
 161
 162         export RUMP_SERVER=$SOCKSRC
 163
 164         # Add and delete a static entry
 165         $DEBUG && rump.arp -n -a
 166         atf_check -s exit:0 -o ignore rump.arp -s 10.0.1.10 b2:a0:20:00:00:10
 167         $DEBUG && rump.arp -n -a
 168         atf_check -s exit:0 -o match:'b2:a0:20:00:00:10' rump.arp -n 10.0.1.10
 169         atf_check -s exit:0 -o match:'permanent' rump.arp -n 10.0.1.10
 170         atf_check -s exit:0 -o ignore rump.arp -d 10.0.1.10
 171         $DEBUG && rump.arp -n -a
 172         atf_check -s not-exit:0 -e ignore rump.arp -n 10.0.1.10
 173
 174         # Add multiple entries via a file
 175         cat - > ./list <<-EOF
 176         10.0.1.11 b2:a0:20:00:00:11
 177         10.0.1.12 b2:a0:20:00:00:12
 178         10.0.1.13 b2:a0:20:00:00:13
 179         10.0.1.14 b2:a0:20:00:00:14
 180         10.0.1.15 b2:a0:20:00:00:15
 181         EOF
 182         $DEBUG && rump.arp -n -a
 183         atf_check -s exit:0 -o ignore rump.arp -f ./list
 184         $DEBUG && rump.arp -n -a
 185         atf_check -s exit:0 -o match:'b2:a0:20:00:00:11' rump.arp -n 10.0.1.11
 186         atf_check -s exit:0 -o match:'permanent' rump.arp -n 10.0.1.11
 187         atf_check -s exit:0 -o match:'b2:a0:20:00:00:12' rump.arp -n 10.0.1.12
 188         atf_check -s exit:0 -o match:'permanent' rump.arp -n 10.0.1.12
 189         atf_check -s exit:0 -o match:'b2:a0:20:00:00:13' rump.arp -n 10.0.1.13
 190         atf_check -s exit:0 -o match:'permanent' rump.arp -n 10.0.1.13
 191         atf_check -s exit:0 -o match:'b2:a0:20:00:00:14' rump.arp -n 10.0.1.14
 192         atf_check -s exit:0 -o match:'permanent' rump.arp -n 10.0.1.14
 193         atf_check -s exit:0 -o match:'b2:a0:20:00:00:15' rump.arp -n 10.0.1.15
 194         atf_check -s exit:0 -o match:'permanent' rump.arp -n 10.0.1.15
 195
 196         # Test arp -a
 197         atf_check -s exit:0 -o match:'10.0.1.11' rump.arp -n -a
 198         atf_check -s exit:0 -o match:'10.0.1.12' rump.arp -n -a
 199         atf_check -s exit:0 -o match:'10.0.1.13' rump.arp -n -a
 200         atf_check -s exit:0 -o match:'10.0.1.14' rump.arp -n -a
 201         atf_check -s exit:0 -o match:'10.0.1.15' rump.arp -n -a
 202
 203         # Flush all entries
 204         $DEBUG && rump.arp -n -a
 205         atf_check -s exit:0 -o ignore rump.arp -d -a
 206         atf_check -s not-exit:0 -e ignore rump.arp -n 10.0.1.11
 207         atf_check -s not-exit:0 -e ignore rump.arp -n 10.0.1.12
 208         atf_check -s not-exit:0 -e ignore rump.arp -n 10.0.1.13
 209         atf_check -s not-exit:0 -e ignore rump.arp -n 10.0.1.14
 210         atf_check -s not-exit:0 -e ignore rump.arp -n 10.0.1.15
 211         atf_check -s not-exit:0 -e ignore rump.arp -n 10.0.1.1
 212
 213         # Test temp option
 214         $DEBUG && rump.arp -n -a
 215         atf_check -s exit:0 -o ignore rump.arp -s 10.0.1.10 b2:a0:20:00:00:10 temp
 216         $DEBUG && rump.arp -n -a
 217         atf_check -s exit:0 -o match:'b2:a0:20:00:00:10' rump.arp -n 10.0.1.10
 218         atf_check -s exit:0 -o not-match:'permanent' rump.arp -n 10.0.1.10
 219
 220         # Hm? the cache doesn't expire...
 221         atf_check -s exit:0 sleep $(($arp_keep + $bonus))
 222         $DEBUG && rump.arp -n -a
 223         #atf_check -s not-exit:0 -e ignore rump.arp -n 10.0.1.10
 224
 225         return 0
 226 }
 227
 228 make_pkt_str()
 229 {
 230         local target=$1
 231         local sender=$2
 232         pkt="> ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42:"
 233         pkt="$pkt Request who-has $target tell $sender, length 28"
 234         echo $pkt
 235 }
 236
 237 garp_body()
 238 {
 239         local pkt=
 240
 241         atf_check -s exit:0 ${inetserver} $SOCKSRC
 242         export RUMP_SERVER=$SOCKSRC
 243
 244         # Setup an interface
 245         atf_check -s exit:0 rump.ifconfig shmif0 create
 246         atf_check -s exit:0 rump.ifconfig shmif0 linkstr bus1
 247         atf_check -s exit:0 rump.ifconfig shmif0 inet 10.0.0.1/24
 248         atf_check -s exit:0 rump.ifconfig shmif0 inet 10.0.0.2/24 alias
 249         atf_check -s exit:0 rump.ifconfig shmif0 up
 250         $DEBUG && rump.ifconfig shmif0
 251
 252         atf_check -s exit:0 sleep 1
 253         shmif_dumpbus -p - bus1 2>/dev/null| tcpdump -n -e -r - > ./out
 254
 255         # A GARP packet is sent for the primary address
 256         pkt=$(make_pkt_str 10.0.0.1 10.0.0.1)
 257         atf_check -s exit:0 -x "cat ./out |grep -q '$pkt'"
 258         # No GARP packet is sent for the alias address
 259         pkt=$(make_pkt_str 10.0.0.2 10.0.0.2)
 260         atf_check -s not-exit:0 -x "cat ./out |grep -q '$pkt'"
 261
 262         atf_check -s exit:0 rump.ifconfig -w 10
 263         atf_check -s exit:0 rump.ifconfig shmif0 inet 10.0.0.3/24
 264         atf_check -s exit:0 rump.ifconfig shmif0 inet 10.0.0.4/24 alias
 265
 266         # No GARP packets are sent during IFF_UP
 267         shmif_dumpbus -p - bus1 2>/dev/null| tcpdump -n -e -r - > ./out
 268         pkt=$(make_pkt_str 10.0.0.3 10.0.0.3)
 269         atf_check -s not-exit:0 -x "cat ./out |grep -q '$pkt'"
 270         pkt=$(make_pkt_str 10.0.0.4 10.0.0.4)
 271         atf_check -s not-exit:0 -x "cat ./out |grep -q '$pkt'"
 272 }
 273
 274 cache_overwriting_body()
 275 {
 276         local arp_keep=5
 277         local bonus=2
 278
 279         atf_check -s exit:0 ${inetserver} $SOCKSRC
 280         atf_check -s exit:0 ${inetserver} $SOCKDST
 281
 282         setup_dst_server
 283         setup_src_server $arp_keep
 284
 285         export RUMP_SERVER=$SOCKSRC
 286
 287         # Cannot overwrite a permanent cache
 288         atf_check -s not-exit:0 -e ignore rump.arp -s $IP4SRC b2:a0:20:00:00:ff
 289         $DEBUG && rump.arp -n -a
 290
 291         atf_check -s exit:0 -o ignore rump.ping -n -w $TIMEOUT -c 1 $IP4DST
 292         $DEBUG && rump.arp -n -a
 293         # Can overwrite a dynamic cache
 294         atf_check -s exit:0 -o ignore rump.arp -s $IP4DST b2:a0:20:00:00:00
 295         $DEBUG && rump.arp -n -a
 296         atf_check -s exit:0 -o match:'b2:a0:20:00:00:00' rump.arp -n $IP4DST
 297         atf_check -s exit:0 -o match:'permanent' rump.arp -n $IP4DST
 298
 299         atf_check -s exit:0 -o ignore rump.arp -s 10.0.1.10 b2:a0:20:00:00:10 temp
 300         $DEBUG && rump.arp -n -a
 301         atf_check -s exit:0 -o match:'b2:a0:20:00:00:10' rump.arp -n 10.0.1.10
 302         atf_check -s exit:0 -o not-match:'permanent' rump.arp -n 10.0.1.10
 303         # Cannot overwrite a temp cache
 304         atf_check -s not-exit:0 -e ignore rump.arp -s 10.0.1.10 b2:a0:20:00:00:ff
 305         $DEBUG && rump.arp -n -a
 306
 307         return 0
 308 }
 309
 310 cleanup()
 311 {
 312         env RUMP_SERVER=$SOCKSRC rump.halt
 313         env RUMP_SERVER=$SOCKDST rump.halt
 314 }
 315
 316 dump_src()
 317 {
 318         export RUMP_SERVER=$SOCKSRC
 319         rump.netstat -nr
 320         rump.arp -n -a
 321         rump.ifconfig
 322         $HIJACKING dmesg
 323 }
 324
 325 dump_dst()
 326 {
 327         export RUMP_SERVER=$SOCKDST
 328         rump.netstat -nr
 329         rump.arp -n -a
 330         rump.ifconfig
 331         $HIJACKING dmesg
 332 }
 333
 334 dump()
 335 {
 336         dump_src
 337         dump_dst
 338         shmif_dumpbus -p - bus1 2>/dev/null| tcpdump -n -e -r -
 339 }
 340
 341 cache_expiration_5s_cleanup()
 342 {
 343         $DEBUG && dump
 344         cleanup
 345 }
 346
 347 cache_expiration_10s_cleanup()
 348 {
 349         $DEBUG && dump
 350         cleanup
 351 }
 352
 353 command_cleanup()
 354 {
 355         $DEBUG && dump
 356         cleanup
 357 }
 358
 359 garp_cleanup()
 360 {
 361         $DEBUG && dump_src
 362         $DEBUG && shmif_dumpbus -p - bus1 2>/dev/null| tcpdump -n -e -r -
 363         env RUMP_SERVER=$SOCKSRC rump.halt
 364 }
 365
 366 cache_overwriting_cleanup()
 367 {
 368         $DEBUG && dump
 369         cleanup
 370 }
 371
 372 atf_init_test_cases()
 373 {
 374         atf_add_test_case cache_expiration_5s
 375         atf_add_test_case cache_expiration_10s
 376         atf_add_test_case command
 377         atf_add_test_case garp
 378         atf_add_test_case cache_overwriting
 379 }