tools/testing/selftests/net/fib_tests.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 # This test is for checking IPv4 and IPv6 FIB behavior in response to
   5 # different events.
   6
   7 ret=0
   8
   9 check_err()
  10 {
  11         if [ $ret -eq 0 ]; then
  12                 ret=$1
  13         fi
  14 }
  15
  16 check_fail()
  17 {
  18         if [ $1 -eq 0 ]; then
  19                 ret=1
  20         fi
  21 }
  22
  23 netns_create()
  24 {
  25         local testns=$1
  26
  27         ip netns add $testns
  28         ip netns exec $testns ip link set dev lo up
  29 }
  30
  31 fib_unreg_unicast_test()
  32 {
  33         ret=0
  34
  35         netns_create "testns"
  36
  37         ip netns exec testns ip link add dummy0 type dummy
  38         ip netns exec testns ip link set dev dummy0 up
  39
  40         ip netns exec testns ip address add 198.51.100.1/24 dev dummy0
  41         ip netns exec testns ip -6 address add 2001:db8:1::1/64 dev dummy0
  42
  43         ip netns exec testns ip route get fibmatch 198.51.100.2 &> /dev/null
  44         check_err $?
  45         ip netns exec testns ip -6 route get fibmatch 2001:db8:1::2 &> /dev/null
  46         check_err $?
  47
  48         ip netns exec testns ip link del dev dummy0
  49         check_err $?
  50
  51         ip netns exec testns ip route get fibmatch 198.51.100.2 &> /dev/null
  52         check_fail $?
  53         ip netns exec testns ip -6 route get fibmatch 2001:db8:1::2 &> /dev/null
  54         check_fail $?
  55
  56         ip netns del testns
  57
  58         if [ $ret -ne 0 ]; then
  59                 echo "FAIL: unicast route test"
  60                 return 1
  61         fi
  62         echo "PASS: unicast route test"
  63 }
  64
  65 fib_unreg_multipath_test()
  66 {
  67         ret=0
  68
  69         netns_create "testns"
  70
  71         ip netns exec testns ip link add dummy0 type dummy
  72         ip netns exec testns ip link set dev dummy0 up
  73
  74         ip netns exec testns ip link add dummy1 type dummy
  75         ip netns exec testns ip link set dev dummy1 up
  76
  77         ip netns exec testns ip address add 198.51.100.1/24 dev dummy0
  78         ip netns exec testns ip -6 address add 2001:db8:1::1/64 dev dummy0
  79
  80         ip netns exec testns ip address add 192.0.2.1/24 dev dummy1
  81         ip netns exec testns ip -6 address add 2001:db8:2::1/64 dev dummy1
  82
  83         ip netns exec testns ip route add 203.0.113.0/24 \
  84                 nexthop via 198.51.100.2 dev dummy0 \
  85                 nexthop via 192.0.2.2 dev dummy1
  86         ip netns exec testns ip -6 route add 2001:db8:3::/64 \
  87                 nexthop via 2001:db8:1::2 dev dummy0 \
  88                 nexthop via 2001:db8:2::2 dev dummy1
  89
  90         ip netns exec testns ip route get fibmatch 203.0.113.1 &> /dev/null
  91         check_err $?
  92         ip netns exec testns ip -6 route get fibmatch 2001:db8:3::1 &> /dev/null
  93         check_err $?
  94
  95         ip netns exec testns ip link del dev dummy0
  96         check_err $?
  97
  98         ip netns exec testns ip route get fibmatch 203.0.113.1 &> /dev/null
  99         check_fail $?
 100         ip netns exec testns ip -6 route get fibmatch 2001:db8:3::1 &> /dev/null
 101         # In IPv6 we do not flush the entire multipath route.
 102         check_err $?
 103
 104         ip netns exec testns ip link del dev dummy1
 105
 106         ip netns del testns
 107
 108         if [ $ret -ne 0 ]; then
 109                 echo "FAIL: multipath route test"
 110                 return 1
 111         fi
 112         echo "PASS: multipath route test"
 113 }
 114
 115 fib_unreg_test()
 116 {
 117         echo "Running netdev unregister tests"
 118
 119         fib_unreg_unicast_test
 120         fib_unreg_multipath_test
 121 }
 122
 123 fib_down_unicast_test()
 124 {
 125         ret=0
 126
 127         netns_create "testns"
 128
 129         ip netns exec testns ip link add dummy0 type dummy
 130         ip netns exec testns ip link set dev dummy0 up
 131
 132         ip netns exec testns ip address add 198.51.100.1/24 dev dummy0
 133         ip netns exec testns ip -6 address add 2001:db8:1::1/64 dev dummy0
 134
 135         ip netns exec testns ip route get fibmatch 198.51.100.2 &> /dev/null
 136         check_err $?
 137         ip netns exec testns ip -6 route get fibmatch 2001:db8:1::2 &> /dev/null
 138         check_err $?
 139
 140         ip netns exec testns ip link set dev dummy0 down
 141         check_err $?
 142
 143         ip netns exec testns ip route get fibmatch 198.51.100.2 &> /dev/null
 144         check_fail $?
 145         ip netns exec testns ip -6 route get fibmatch 2001:db8:1::2 &> /dev/null
 146         check_fail $?
 147
 148         ip netns exec testns ip link del dev dummy0
 149
 150         ip netns del testns
 151
 152         if [ $ret -ne 0 ]; then
 153                 echo "FAIL: unicast route test"
 154                 return 1
 155         fi
 156         echo "PASS: unicast route test"
 157 }
 158
 159 fib_down_multipath_test_do()
 160 {
 161         local down_dev=$1
 162         local up_dev=$2
 163
 164         ip netns exec testns ip route get fibmatch 203.0.113.1 \
 165                 oif $down_dev &> /dev/null
 166         check_fail $?
 167         ip netns exec testns ip -6 route get fibmatch 2001:db8:3::1 \
 168                 oif $down_dev &> /dev/null
 169         check_fail $?
 170
 171         ip netns exec testns ip route get fibmatch 203.0.113.1 \
 172                 oif $up_dev &> /dev/null
 173         check_err $?
 174         ip netns exec testns ip -6 route get fibmatch 2001:db8:3::1 \
 175                 oif $up_dev &> /dev/null
 176         check_err $?
 177
 178         ip netns exec testns ip route get fibmatch 203.0.113.1 | \
 179                 grep $down_dev | grep -q "dead linkdown"
 180         check_err $?
 181         ip netns exec testns ip -6 route get fibmatch 2001:db8:3::1 | \
 182                 grep $down_dev | grep -q "dead linkdown"
 183         check_err $?
 184
 185         ip netns exec testns ip route get fibmatch 203.0.113.1 | \
 186                 grep $up_dev | grep -q "dead linkdown"
 187         check_fail $?
 188         ip netns exec testns ip -6 route get fibmatch 2001:db8:3::1 | \
 189                 grep $up_dev | grep -q "dead linkdown"
 190         check_fail $?
 191 }
 192
 193 fib_down_multipath_test()
 194 {
 195         ret=0
 196
 197         netns_create "testns"
 198
 199         ip netns exec testns ip link add dummy0 type dummy
 200         ip netns exec testns ip link set dev dummy0 up
 201
 202         ip netns exec testns ip link add dummy1 type dummy
 203         ip netns exec testns ip link set dev dummy1 up
 204
 205         ip netns exec testns ip address add 198.51.100.1/24 dev dummy0
 206         ip netns exec testns ip -6 address add 2001:db8:1::1/64 dev dummy0
 207
 208         ip netns exec testns ip address add 192.0.2.1/24 dev dummy1
 209         ip netns exec testns ip -6 address add 2001:db8:2::1/64 dev dummy1
 210
 211         ip netns exec testns ip route add 203.0.113.0/24 \
 212                 nexthop via 198.51.100.2 dev dummy0 \
 213                 nexthop via 192.0.2.2 dev dummy1
 214         ip netns exec testns ip -6 route add 2001:db8:3::/64 \
 215                 nexthop via 2001:db8:1::2 dev dummy0 \
 216                 nexthop via 2001:db8:2::2 dev dummy1
 217
 218         ip netns exec testns ip route get fibmatch 203.0.113.1 &> /dev/null
 219         check_err $?
 220         ip netns exec testns ip -6 route get fibmatch 2001:db8:3::1 &> /dev/null
 221         check_err $?
 222
 223         ip netns exec testns ip link set dev dummy0 down
 224         check_err $?
 225
 226         fib_down_multipath_test_do "dummy0" "dummy1"
 227
 228         ip netns exec testns ip link set dev dummy0 up
 229         check_err $?
 230         ip netns exec testns ip link set dev dummy1 down
 231         check_err $?
 232
 233         fib_down_multipath_test_do "dummy1" "dummy0"
 234
 235         ip netns exec testns ip link set dev dummy0 down
 236         check_err $?
 237
 238         ip netns exec testns ip route get fibmatch 203.0.113.1 &> /dev/null
 239         check_fail $?
 240         ip netns exec testns ip -6 route get fibmatch 2001:db8:3::1 &> /dev/null
 241         check_fail $?
 242
 243         ip netns exec testns ip link del dev dummy1
 244         ip netns exec testns ip link del dev dummy0
 245
 246         ip netns del testns
 247
 248         if [ $ret -ne 0 ]; then
 249                 echo "FAIL: multipath route test"
 250                 return 1
 251         fi
 252         echo "PASS: multipath route test"
 253 }
 254
 255 fib_down_test()
 256 {
 257         echo "Running netdev down tests"
 258
 259         fib_down_unicast_test
 260         fib_down_multipath_test
 261 }
 262
 263 fib_carrier_local_test()
 264 {
 265         ret=0
 266
 267         # Local routes should not be affected when carrier changes.
 268         netns_create "testns"
 269
 270         ip netns exec testns ip link add dummy0 type dummy
 271         ip netns exec testns ip link set dev dummy0 up
 272
 273         ip netns exec testns ip link set dev dummy0 carrier on
 274
 275         ip netns exec testns ip address add 198.51.100.1/24 dev dummy0
 276         ip netns exec testns ip -6 address add 2001:db8:1::1/64 dev dummy0
 277
 278         ip netns exec testns ip route get fibmatch 198.51.100.1 &> /dev/null
 279         check_err $?
 280         ip netns exec testns ip -6 route get fibmatch 2001:db8:1::1 &> /dev/null
 281         check_err $?
 282
 283         ip netns exec testns ip route get fibmatch 198.51.100.1 | \
 284                 grep -q "linkdown"
 285         check_fail $?
 286         ip netns exec testns ip -6 route get fibmatch 2001:db8:1::1 | \
 287                 grep -q "linkdown"
 288         check_fail $?
 289
 290         ip netns exec testns ip link set dev dummy0 carrier off
 291
 292         ip netns exec testns ip route get fibmatch 198.51.100.1 &> /dev/null
 293         check_err $?
 294         ip netns exec testns ip -6 route get fibmatch 2001:db8:1::1 &> /dev/null
 295         check_err $?
 296
 297         ip netns exec testns ip route get fibmatch 198.51.100.1 | \
 298                 grep -q "linkdown"
 299         check_fail $?
 300         ip netns exec testns ip -6 route get fibmatch 2001:db8:1::1 | \
 301                 grep -q "linkdown"
 302         check_fail $?
 303
 304         ip netns exec testns ip address add 192.0.2.1/24 dev dummy0
 305         ip netns exec testns ip -6 address add 2001:db8:2::1/64 dev dummy0
 306
 307         ip netns exec testns ip route get fibmatch 192.0.2.1 &> /dev/null
 308         check_err $?
 309         ip netns exec testns ip -6 route get fibmatch 2001:db8:2::1 &> /dev/null
 310         check_err $?
 311
 312         ip netns exec testns ip route get fibmatch 192.0.2.1 | \
 313                 grep -q "linkdown"
 314         check_fail $?
 315         ip netns exec testns ip -6 route get fibmatch 2001:db8:2::1 | \
 316                 grep -q "linkdown"
 317         check_fail $?
 318
 319         ip netns exec testns ip link del dev dummy0
 320
 321         ip netns del testns
 322
 323         if [ $ret -ne 0 ]; then
 324                 echo "FAIL: local route carrier test"
 325                 return 1
 326         fi
 327         echo "PASS: local route carrier test"
 328 }
 329
 330 fib_carrier_unicast_test()
 331 {
 332         ret=0
 333
 334         netns_create "testns"
 335
 336         ip netns exec testns ip link add dummy0 type dummy
 337         ip netns exec testns ip link set dev dummy0 up
 338
 339         ip netns exec testns ip link set dev dummy0 carrier on
 340
 341         ip netns exec testns ip address add 198.51.100.1/24 dev dummy0
 342         ip netns exec testns ip -6 address add 2001:db8:1::1/64 dev dummy0
 343
 344         ip netns exec testns ip route get fibmatch 198.51.100.2 &> /dev/null
 345         check_err $?
 346         ip netns exec testns ip -6 route get fibmatch 2001:db8:1::2 &> /dev/null
 347         check_err $?
 348
 349         ip netns exec testns ip route get fibmatch 198.51.100.2 | \
 350                 grep -q "linkdown"
 351         check_fail $?
 352         ip netns exec testns ip -6 route get fibmatch 2001:db8:1::2 | \
 353                 grep -q "linkdown"
 354         check_fail $?
 355
 356         ip netns exec testns ip link set dev dummy0 carrier off
 357
 358         ip netns exec testns ip route get fibmatch 198.51.100.2 &> /dev/null
 359         check_err $?
 360         ip netns exec testns ip -6 route get fibmatch 2001:db8:1::2 &> /dev/null
 361         check_err $?
 362
 363         ip netns exec testns ip route get fibmatch 198.51.100.2 | \
 364                 grep -q "linkdown"
 365         check_err $?
 366         ip netns exec testns ip -6 route get fibmatch 2001:db8:1::2 | \
 367                 grep -q "linkdown"
 368         check_err $?
 369
 370         ip netns exec testns ip address add 192.0.2.1/24 dev dummy0
 371         ip netns exec testns ip -6 address add 2001:db8:2::1/64 dev dummy0
 372
 373         ip netns exec testns ip route get fibmatch 192.0.2.2 &> /dev/null
 374         check_err $?
 375         ip netns exec testns ip -6 route get fibmatch 2001:db8:2::2 &> /dev/null
 376         check_err $?
 377
 378         ip netns exec testns ip route get fibmatch 192.0.2.2 | \
 379                 grep -q "linkdown"
 380         check_err $?
 381         ip netns exec testns ip -6 route get fibmatch 2001:db8:2::2 | \
 382                 grep -q "linkdown"
 383         check_err $?
 384
 385         ip netns exec testns ip link del dev dummy0
 386
 387         ip netns del testns
 388
 389         if [ $ret -ne 0 ]; then
 390                 echo "FAIL: unicast route carrier test"
 391                 return 1
 392         fi
 393         echo "PASS: unicast route carrier test"
 394 }
 395
 396 fib_carrier_test()
 397 {
 398         echo "Running netdev carrier change tests"
 399
 400         fib_carrier_local_test
 401         fib_carrier_unicast_test
 402 }
 403
 404 fib_test()
 405 {
 406         fib_unreg_test
 407         fib_down_test
 408         fib_carrier_test
 409 }
 410
 411 if [ "$(id -u)" -ne 0 ];then
 412         echo "SKIP: Need root privileges"
 413         exit 0
 414 fi
 415
 416 if [ ! -x "$(command -v ip)" ]; then
 417         echo "SKIP: Could not run test without ip tool"
 418         exit 0
 419 fi
 420
 421 ip route help 2>&1 | grep -q fibmatch
 422 if [ $? -ne 0 ]; then
 423         echo "SKIP: iproute2 too old, missing fibmatch"
 424         exit 0
 425 fi
 426
 427 fib_test
 428
 429 exit $ret