t_ndp.sh revision 1.11
1 # $NetBSD: t_ndp.sh,v 1.11 2016/05/20 06:48:52 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 SOCKSRC=unix://commsock1 33 SOCKDST=unix://commsock2 34 IP6SRC=fc00::1 35 IP6DST=fc00::2 36 37 DEBUG=true 38 TIMEOUT=1 39 40 atf_test_case cache_expiration cleanup 41 atf_test_case command cleanup 42 atf_test_case cache_overwriting cleanup 43 atf_test_case neighborgcthresh cleanup 44 atf_test_case link_activation cleanup 45 46 cache_expiration_head() 47 { 48 atf_set "descr" "Tests for NDP cache expiration" 49 atf_set "require.progs" "rump_server" 50 } 51 52 command_head() 53 { 54 atf_set "descr" "Tests for commands of ndp(8)" 55 atf_set "require.progs" "rump_server" 56 } 57 58 cache_overwriting_head() 59 { 60 atf_set "descr" "Tests for behavior of overwriting NDP caches" 61 atf_set "require.progs" "rump_server" 62 } 63 64 neighborgcthresh_head() 65 { 66 atf_set "descr" "Tests for GC of neighbor caches" 67 atf_set "require.progs" "rump_server" 68 } 69 70 link_activation_head() 71 { 72 atf_set "descr" "Tests for activating a new MAC address" 73 atf_set "require.progs" "rump_server" 74 } 75 76 setup_dst_server() 77 { 78 local assign_ip=$1 79 80 export RUMP_SERVER=$SOCKDST 81 atf_check -s exit:0 rump.ifconfig shmif0 create 82 atf_check -s exit:0 rump.ifconfig shmif0 linkstr bus1 83 if [ "$assign_ip" != no ]; then 84 atf_check -s exit:0 rump.ifconfig shmif0 inet6 $IP6DST 85 fi 86 atf_check -s exit:0 rump.ifconfig shmif0 up 87 atf_check -s exit:0 rump.ifconfig -w 10 88 89 $DEBUG && rump.ifconfig shmif0 90 $DEBUG && rump.ndp -n -a 91 } 92 93 setup_src_server() 94 { 95 $DEBUG && ulimit -c unlimited 96 export RUMP_SERVER=$SOCKSRC 97 98 # Setup an interface 99 atf_check -s exit:0 rump.ifconfig shmif0 create 100 atf_check -s exit:0 rump.ifconfig shmif0 linkstr bus1 101 atf_check -s exit:0 rump.ifconfig shmif0 inet6 $IP6SRC 102 atf_check -s exit:0 rump.ifconfig shmif0 up 103 atf_check -s exit:0 rump.ifconfig -w 10 104 105 # Sanity check 106 $DEBUG && rump.ifconfig shmif0 107 $DEBUG && rump.ndp -n -a 108 atf_check -s exit:0 -o ignore rump.ndp -n $IP6SRC 109 atf_check -s not-exit:0 -o ignore -e ignore rump.ndp -n $IP6DST 110 } 111 112 get_timeout() 113 { 114 local timeout=$(env RUMP_SERVER=$SOCKSRC rump.ndp -n $IP6DST |grep $IP6DST|awk '{print $4;}') 115 timeout=${timeout%s} 116 echo $timeout 117 } 118 119 cache_expiration_body() 120 { 121 atf_check -s exit:0 ${inetserver} $SOCKSRC 122 atf_check -s exit:0 ${inetserver} $SOCKDST 123 124 setup_dst_server 125 setup_src_server 126 127 # 128 # Check if a cache is expired expectedly 129 # 130 export RUMP_SERVER=$SOCKSRC 131 atf_check -s exit:0 -o ignore rump.ping6 -n -X $TIMEOUT -c 1 $IP6DST 132 133 $DEBUG && rump.ndp -n -a 134 atf_check -s exit:0 -o match:'permanent' rump.ndp -n $IP6SRC 135 # Should be cached 136 atf_check -s exit:0 -o not-match:'permanent' rump.ndp -n $IP6DST 137 138 timeout=$(get_timeout $IP6DST) 139 140 atf_check -s exit:0 sleep $(($timeout + 1)) 141 142 $DEBUG && rump.ndp -n -a 143 atf_check -s exit:0 -o match:'permanent' rump.ndp -n $IP6SRC 144 # Expired but remains until GC sweaps it (1 day) 145 atf_check -s exit:0 -o match:'(1d0h0m|23h59m)' rump.ndp -n $IP6DST 146 } 147 148 ifdown_dst_server() 149 { 150 export RUMP_SERVER=$SOCKDST 151 atf_check -s exit:0 rump.ifconfig shmif0 down 152 export RUMP_SERVER=$SOCKSRC 153 } 154 155 command_body() 156 { 157 atf_check -s exit:0 ${inetserver} $SOCKSRC 158 atf_check -s exit:0 ${inetserver} $SOCKDST 159 160 setup_dst_server 161 setup_src_server 162 163 export RUMP_SERVER=$SOCKSRC 164 165 # We can delete the entry for the interface's IP address 166 atf_check -s exit:0 -o match:"$IP6SRC" rump.ndp -d $IP6SRC 167 168 # Add and delete a static entry 169 $DEBUG && rump.ndp -n -a 170 atf_check -s exit:0 -o ignore rump.ndp -s fc00::10 b2:a0:20:00:00:10 171 $DEBUG && rump.ndp -n -a 172 atf_check -s exit:0 -o match:'permanent' rump.ndp -n fc00::10 173 atf_check -s exit:0 -o match:'deleted' rump.ndp -d fc00::10 174 $DEBUG && rump.ndp -n -a 175 atf_check -s not-exit:0 -o ignore -e ignore rump.ndp -n fc00::10 176 177 # Add multiple entries via a file (XXX not implemented) 178 #cat - > ./list <<-EOF 179 #fc00::11 b2:a0:20:00:00:11 180 #fc00::12 b2:a0:20:00:00:12 181 #fc00::13 b2:a0:20:00:00:13 182 #fc00::14 b2:a0:20:00:00:14 183 #fc00::15 b2:a0:20:00:00:15 184 #EOF 185 #$DEBUG && rump.ndp -n -a 186 #atf_check -s exit:0 -o ignore rump.ndp -f ./list 187 #$DEBUG && rump.ndp -n -a 188 189 atf_check -s exit:0 -o ignore rump.ping6 -n -X $TIMEOUT -c 1 $IP6DST 190 atf_check -s exit:0 -o ignore rump.ndp -s fc00::11 b2:a0:20:00:00:11 191 atf_check -s exit:0 -o ignore rump.ndp -s fc00::12 b2:a0:20:00:00:12 192 193 atf_check -s exit:0 -o not-match:'permanent' rump.ndp -n $IP6DST 194 atf_check -s exit:0 -o match:'permanent' rump.ndp -n fc00::11 195 atf_check -s exit:0 -o match:'permanent' rump.ndp -n fc00::12 196 197 # Test ndp -a 198 atf_check -s exit:0 -o match:'fc00::11' rump.ndp -n -a 199 atf_check -s exit:0 -o match:'fc00::12' rump.ndp -n -a 200 201 # Ensure no packet upsets the src server 202 ifdown_dst_server 203 204 # Flush all entries (-c) 205 $DEBUG && rump.ndp -n -a 206 atf_check -s exit:0 -o ignore rump.ndp -c 207 atf_check -s not-exit:0 -o ignore -e ignore rump.ndp -n $IP6SRC 208 atf_check -s not-exit:0 -o ignore -e ignore rump.ndp -n $IP6DST 209 # Only the static caches are not deleted 210 atf_check -s exit:0 -o ignore -e ignore rump.ndp -n fc00::11 211 atf_check -s exit:0 -o ignore -e ignore rump.ndp -n fc00::12 212 213 $DEBUG && rump.ndp -n -a 214 atf_check -s exit:0 -o ignore rump.ndp -s fc00::10 b2:a0:20:00:00:10 temp 215 rump.ndp -s fc00::10 b2:a0:20:00:00:10 temp 216 $DEBUG && rump.ndp -n -a 217 atf_check -s exit:0 -o not-match:'permanent' rump.ndp -n fc00::10 218 219 return 0 220 } 221 222 cache_overwriting_body() 223 { 224 atf_check -s exit:0 ${inetserver} $SOCKSRC 225 atf_check -s exit:0 ${inetserver} $SOCKDST 226 227 setup_dst_server 228 setup_src_server 229 230 export RUMP_SERVER=$SOCKSRC 231 232 # Cannot overwrite a permanent cache 233 atf_check -s not-exit:0 -e ignore rump.ndp -s $IP6SRC b2:a0:20:00:00:ff 234 $DEBUG && rump.ndp -n -a 235 236 atf_check -s exit:0 -o ignore rump.ping6 -n -X $TIMEOUT -c 1 $IP6DST 237 $DEBUG && rump.ndp -n -a 238 # Can overwrite a dynamic cache 239 atf_check -s exit:0 -o ignore rump.ndp -s $IP6DST b2:a0:20:00:00:00 240 $DEBUG && rump.ndp -n -a 241 atf_check -s exit:0 -o match:'permanent' rump.ndp -n $IP6DST 242 243 # Test temp option (XXX it doesn't work; expire time isn't set) 244 #atf_check -s exit:0 -o ignore rump.ndp -s fc00::10 b2:a0:20:00:00:10 temp 245 #$DEBUG && rump.ndp -n -a 246 #atf_check -s exit:0 -o not-match:'permanent' rump.ndp -n fc00::10 247 # Cannot overwrite a temp cache 248 #atf_check -s not-exit:0 -e ignore rump.ndp -s fc00::10 b2:a0:20:00:00:ff 249 #$DEBUG && rump.ndp -n -a 250 251 return 0 252 } 253 254 get_n_caches() 255 { 256 257 echo $(rump.ndp -a -n |grep -v -e Neighbor -e permanent |wc -l) 258 } 259 260 neighborgcthresh_body() 261 { 262 263 atf_check -s exit:0 ${inetserver} $SOCKSRC 264 atf_check -s exit:0 ${inetserver} $SOCKDST 265 266 setup_dst_server no 267 setup_src_server 268 269 export RUMP_SERVER=$SOCKDST 270 for i in $(seq 0 9); do 271 atf_check -s exit:0 rump.ifconfig shmif0 inet6 ${IP6DST}$i 272 done 273 274 export RUMP_SERVER=$SOCKSRC 275 276 # ping to 3 destinations 277 $DEBUG && rump.ndp -n -a 278 for i in $(seq 0 2); do 279 atf_check -s exit:0 -o ignore rump.ping6 -n -X $TIMEOUT -c 1 \ 280 ${IP6DST}$i 281 done 282 $DEBUG && rump.ndp -n -a 283 284 # 3 caches should be created 285 atf_check_equal $(get_n_caches) 3 286 287 # ping to additional 3 destinations 288 for i in $(seq 3 5); do 289 atf_check -s exit:0 -o ignore rump.ping6 -n -X $TIMEOUT -c 1 \ 290 ${IP6DST}$i 291 done 292 $DEBUG && rump.ndp -n -a 293 294 # 6 caches should be created in total 295 atf_check_equal $(get_n_caches) 6 296 297 # Limit the number of neighbor caches to 5 298 atf_check -s exit:0 -o ignore rump.sysctl -w \ 299 net.inet6.ip6.neighborgcthresh=5 300 301 # ping to additional 4 destinations 302 for i in $(seq 6 9); do 303 atf_check -s exit:0 -o ignore rump.ping6 -n -X $TIMEOUT -c 1 \ 304 ${IP6DST}$i 305 done 306 307 # More than 5 caches should be created in total, but exceeded caches 308 # should be GC-ed 309 if [ "$(get_n_caches)" -gt 5 ]; then 310 atf_fail "Neighbor caches are not GC-ed" 311 fi 312 313 return 0 314 } 315 316 make_pkt_str_na() 317 { 318 local ip=$1 319 local mac=$2 320 local pkt= 321 pkt="$mac > 33:33:00:00:00:01, ethertype IPv6 (0x86dd), length 86:" 322 pkt="$pkt $ip > ff02::1: ICMP6, neighbor advertisement" 323 echo $pkt 324 } 325 326 extract_new_packets() 327 { 328 local old=./old 329 330 if [ ! -f $old ]; then 331 old=/dev/null 332 fi 333 334 shmif_dumpbus -p - bus1 2>/dev/null| \ 335 tcpdump -n -e -r - 2>/dev/null > ./new 336 diff -u $old ./new |grep '^+' |cut -d '+' -f 2 > ./diff 337 mv -f ./new ./old 338 cat ./diff 339 } 340 341 link_activation_body() 342 { 343 local linklocal= 344 345 atf_check -s exit:0 ${inetserver} $SOCKSRC 346 atf_check -s exit:0 ${inetserver} $SOCKDST 347 348 setup_dst_server 349 setup_src_server 350 351 # flush old packets 352 extract_new_packets > ./out 353 354 export RUMP_SERVER=$SOCKSRC 355 356 atf_check -s exit:0 -o ignore rump.ifconfig shmif0 link \ 357 b2:a1:00:00:00:01 358 359 atf_check -s exit:0 sleep 1 360 extract_new_packets > ./out 361 $DEBUG && cat ./out 362 363 linklocal=$(rump.ifconfig shmif0 |awk '/fe80/ {print $2;}' |awk -F % '{print $1;}') 364 $DEBUG && echo $linklocal 365 366 pkt=$(make_pkt_str_na $linklocal b2:a1:00:00:00:01) 367 atf_check -s not-exit:0 -x "cat ./out |grep -q '$pkt'" 368 369 atf_check -s exit:0 -o ignore rump.ifconfig shmif0 link \ 370 b2:a1:00:00:00:02 active 371 372 atf_check -s exit:0 sleep 1 373 extract_new_packets > ./out 374 $DEBUG && cat ./out 375 376 linklocal=$(rump.ifconfig shmif0 |awk '/fe80/ {print $2;}' |awk -F % '{print $1;}') 377 $DEBUG && echo $linklocal 378 379 pkt=$(make_pkt_str_na $linklocal b2:a1:00:00:00:02) 380 atf_check -s exit:0 -x "cat ./out |grep -q '$pkt'" 381 } 382 383 cleanup() 384 { 385 env RUMP_SERVER=$SOCKSRC rump.halt 386 env RUMP_SERVER=$SOCKDST rump.halt 387 } 388 389 dump_src() 390 { 391 export RUMP_SERVER=$SOCKSRC 392 rump.netstat -nr 393 rump.ndp -n -a 394 rump.ifconfig 395 $HIJACKING dmesg 396 } 397 398 dump_dst() 399 { 400 export RUMP_SERVER=$SOCKDST 401 rump.netstat -nr 402 rump.ndp -n -a 403 rump.ifconfig 404 $HIJACKING dmesg 405 } 406 407 dump() 408 { 409 dump_src 410 dump_dst 411 shmif_dumpbus -p - bus1 2>/dev/null| tcpdump -n -e -r - 412 $DEBUG && gdb -ex bt /usr/bin/rump_server rump_server.core 413 $DEBUG && gdb -ex bt /usr/sbin/rump.ndp rump.ndp.core 414 } 415 416 cache_expiration_cleanup() 417 { 418 $DEBUG && dump 419 cleanup 420 } 421 422 command_cleanup() 423 { 424 $DEBUG && dump 425 cleanup 426 } 427 428 cache_overwriting_cleanup() 429 { 430 $DEBUG && dump 431 cleanup 432 } 433 434 neighborgcthresh_cleanup() 435 { 436 $DEBUG && dump 437 cleanup 438 } 439 440 link_activation_cleanup() 441 { 442 $DEBUG && dump 443 cleanup 444 } 445 446 atf_init_test_cases() 447 { 448 atf_add_test_case cache_expiration 449 atf_add_test_case command 450 atf_add_test_case cache_overwriting 451 atf_add_test_case neighborgcthresh 452 atf_add_test_case link_activation 453 } 454
Indexes created Thu Oct 02 10:09:58 GMT 2025