tools/testing/selftests/net/forwarding/router_multicast.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 # +------------------+
   5 # | H1 (v$h1)        |
   6 # | 2001:db8:1::2/64 |
   7 # | 198.51.100.2/28  |
   8 # |         $h1 +    |
   9 # +-------------|----+
  10 #               |
  11 # +-------------|-------------------------------+
  12 # | SW1         |                               |
  13 # |        $rp1 +                               |
  14 # | 198.51.100.1/28                             |
  15 # | 2001:db8:1::1/64                            |
  16 # |                                             |
  17 # | 2001:db8:2::1/64           2001:db8:3::1/64 |
  18 # | 198.51.100.17/28           198.51.100.33/28 |
  19 # |         $rp2 +                     $rp3 +   |
  20 # +--------------|--------------------------|---+
  21 #                |                          |
  22 #                |                          |
  23 # +--------------|---+       +--------------|---+
  24 # | H2 (v$h2)    |   |       | H3 (v$h3)    |   |
  25 # |          $h2 +   |       |          $h3 +   |
  26 # | 198.51.100.18/28 |       | 198.51.100.34/28 |
  27 # | 2001:db8:2::2/64 |       | 2001:db8:3::2/64 |
  28 # +------------------+       +------------------+
  29 #
  30
  31 ALL_TESTS="mcast_v4 mcast_v6"
  32 NUM_NETIFS=6
  33 source lib.sh
  34 source tc_common.sh
  35
  36 require_command $MCD
  37 require_command $MC_CLI
  38 table_name=selftests
  39
  40 h1_create()
  41 {
  42         simple_if_init $h1 198.51.100.2/28 2001:db8:1::2/64
  43
  44         ip route add 198.51.100.16/28 vrf v$h1 nexthop via 198.51.100.1
  45         ip route add 198.51.100.32/28 vrf v$h1 nexthop via 198.51.100.1
  46
  47         ip route add 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::1
  48         ip route add 2001:db8:3::/64 vrf v$h1 nexthop via 2001:db8:1::1
  49 }
  50
  51 h1_destroy()
  52 {
  53         ip route del 2001:db8:3::/64 vrf v$h1
  54         ip route del 2001:db8:2::/64 vrf v$h1
  55
  56         ip route del 198.51.100.32/28 vrf v$h1
  57         ip route del 198.51.100.16/28 vrf v$h1
  58
  59         simple_if_fini $h1 198.51.100.2/28 2001:db8:1::2/64
  60 }
  61
  62 h2_create()
  63 {
  64         simple_if_init $h2 198.51.100.18/28 2001:db8:2::2/64
  65
  66         ip route add 198.51.100.0/28 vrf v$h2 nexthop via 198.51.100.17
  67         ip route add 198.51.100.32/28 vrf v$h2 nexthop via 198.51.100.17
  68
  69         ip route add 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::1
  70         ip route add 2001:db8:3::/64 vrf v$h2 nexthop via 2001:db8:2::1
  71
  72         tc qdisc add dev $h2 ingress
  73 }
  74
  75 h2_destroy()
  76 {
  77         tc qdisc del dev $h2 ingress
  78
  79         ip route del 2001:db8:3::/64 vrf v$h2
  80         ip route del 2001:db8:1::/64 vrf v$h2
  81
  82         ip route del 198.51.100.32/28 vrf v$h2
  83         ip route del 198.51.100.0/28 vrf v$h2
  84
  85         simple_if_fini $h2 198.51.100.18/28 2001:db8:2::2/64
  86 }
  87
  88 h3_create()
  89 {
  90         simple_if_init $h3 198.51.100.34/28 2001:db8:3::2/64
  91
  92         ip route add 198.51.100.0/28 vrf v$h3 nexthop via 198.51.100.33
  93         ip route add 198.51.100.16/28 vrf v$h3 nexthop via 198.51.100.33
  94
  95         ip route add 2001:db8:1::/64 vrf v$h3 nexthop via 2001:db8:3::1
  96         ip route add 2001:db8:2::/64 vrf v$h3 nexthop via 2001:db8:3::1
  97
  98         tc qdisc add dev $h3 ingress
  99 }
 100
 101 h3_destroy()
 102 {
 103         tc qdisc del dev $h3 ingress
 104
 105         ip route del 2001:db8:2::/64 vrf v$h3
 106         ip route del 2001:db8:1::/64 vrf v$h3
 107
 108         ip route del 198.51.100.16/28 vrf v$h3
 109         ip route del 198.51.100.0/28 vrf v$h3
 110
 111         simple_if_fini $h3 198.51.100.34/28 2001:db8:3::2/64
 112 }
 113
 114 router_create()
 115 {
 116         ip link set dev $rp1 up
 117         ip link set dev $rp2 up
 118         ip link set dev $rp3 up
 119
 120         ip address add 198.51.100.1/28 dev $rp1
 121         ip address add 198.51.100.17/28 dev $rp2
 122         ip address add 198.51.100.33/28 dev $rp3
 123
 124         ip address add 2001:db8:1::1/64 dev $rp1
 125         ip address add 2001:db8:2::1/64 dev $rp2
 126         ip address add 2001:db8:3::1/64 dev $rp3
 127 }
 128
 129 router_destroy()
 130 {
 131         ip address del 2001:db8:3::1/64 dev $rp3
 132         ip address del 2001:db8:2::1/64 dev $rp2
 133         ip address del 2001:db8:1::1/64 dev $rp1
 134
 135         ip address del 198.51.100.33/28 dev $rp3
 136         ip address del 198.51.100.17/28 dev $rp2
 137         ip address del 198.51.100.1/28 dev $rp1
 138
 139         ip link set dev $rp3 down
 140         ip link set dev $rp2 down
 141         ip link set dev $rp1 down
 142 }
 143
 144 start_mcd()
 145 {
 146         SMCROUTEDIR="$(mktemp -d)"
 147
 148         for ((i = 1; i <= $NUM_NETIFS; ++i)); do
 149                 echo "phyint ${NETIFS[p$i]} enable" >> \
 150                         $SMCROUTEDIR/$table_name.conf
 151         done
 152
 153         $MCD -N -I $table_name -f $SMCROUTEDIR/$table_name.conf \
 154                 -P $SMCROUTEDIR/$table_name.pid
 155 }
 156
 157 kill_mcd()
 158 {
 159         pkill $MCD
 160         rm -rf $SMCROUTEDIR
 161 }
 162
 163 setup_prepare()
 164 {
 165         h1=${NETIFS[p1]}
 166         rp1=${NETIFS[p2]}
 167
 168         rp2=${NETIFS[p3]}
 169         h2=${NETIFS[p4]}
 170
 171         rp3=${NETIFS[p5]}
 172         h3=${NETIFS[p6]}
 173
 174         start_mcd
 175
 176         vrf_prepare
 177
 178         h1_create
 179         h2_create
 180         h3_create
 181
 182         router_create
 183
 184         forwarding_enable
 185 }
 186
 187 cleanup()
 188 {
 189         pre_cleanup
 190
 191         forwarding_restore
 192
 193         router_destroy
 194
 195         h3_destroy
 196         h2_destroy
 197         h1_destroy
 198
 199         vrf_cleanup
 200
 201         kill_mcd
 202 }
 203
 204 create_mcast_sg()
 205 {
 206         local if_name=$1; shift
 207         local s_addr=$1; shift
 208         local mcast=$1; shift
 209         local dest_ifs=${@}
 210
 211         $MC_CLI -I $table_name add $if_name $s_addr $mcast $dest_ifs
 212 }
 213
 214 delete_mcast_sg()
 215 {
 216         local if_name=$1; shift
 217         local s_addr=$1; shift
 218         local mcast=$1; shift
 219         local dest_ifs=${@}
 220
 221         $MC_CLI -I $table_name remove $if_name $s_addr $mcast $dest_ifs
 222 }
 223
 224 mcast_v4()
 225 {
 226         # Add two interfaces to an MC group, send a packet to the MC group and
 227         # verify packets are received on both. Then delete the route and verify
 228         # packets are no longer received.
 229
 230         RET=0
 231
 232         tc filter add dev $h2 ingress protocol ip pref 1 handle 122 flower \
 233                 dst_ip 225.1.2.3 action drop
 234         tc filter add dev $h3 ingress protocol ip pref 1 handle 133 flower \
 235                 dst_ip 225.1.2.3 action drop
 236
 237         create_mcast_sg $rp1 198.51.100.2 225.1.2.3 $rp2 $rp3
 238
 239         # Send frames with the corresponding L2 destination address.
 240         $MZ $h1 -c 5 -p 128 -t udp -a 00:11:22:33:44:55 -b 01:00:5e:01:02:03 \
 241                 -A 198.51.100.2 -B 225.1.2.3 -q
 242
 243         tc_check_packets "dev $h2 ingress" 122 5
 244         check_err $? "Multicast not received on first host"
 245         tc_check_packets "dev $h3 ingress" 133 5
 246         check_err $? "Multicast not received on second host"
 247
 248         delete_mcast_sg $rp1 198.51.100.2 225.1.2.3 $rp2 $rp3
 249
 250         $MZ $h1 -c 5 -p 128 -t udp -a 00:11:22:33:44:55 -b 01:00:5e:01:02:03 \
 251                 -A 198.51.100.2 -B 225.1.2.3 -q
 252
 253         tc_check_packets "dev $h2 ingress" 122 5
 254         check_err $? "Multicast received on host although deleted"
 255         tc_check_packets "dev $h3 ingress" 133 5
 256         check_err $? "Multicast received on second host although deleted"
 257
 258         tc filter del dev $h3 ingress protocol ip pref 1 handle 133 flower
 259         tc filter del dev $h2 ingress protocol ip pref 1 handle 122 flower
 260
 261         log_test "mcast IPv4"
 262 }
 263
 264 mcast_v6()
 265 {
 266         # Add two interfaces to an MC group, send a packet to the MC group and
 267         # verify packets are received on both. Then delete the route and verify
 268         # packets are no longer received.
 269
 270         RET=0
 271
 272         tc filter add dev $h2 ingress protocol ipv6 pref 1 handle 122 flower \
 273                 dst_ip ff0e::3 action drop
 274         tc filter add dev $h3 ingress protocol ipv6 pref 1 handle 133 flower \
 275                 dst_ip ff0e::3 action drop
 276
 277         create_mcast_sg $rp1 2001:db8:1::2 ff0e::3 $rp2 $rp3
 278
 279         # Send frames with the corresponding L2 destination address.
 280         $MZ $h1 -6 -c 5 -p 128 -t udp -a 00:11:22:33:44:55 \
 281                 -b 33:33:00:00:00:03 -A 2001:db8:1::2 -B ff0e::3 -q
 282
 283         tc_check_packets "dev $h2 ingress" 122 5
 284         check_err $? "Multicast not received on first host"
 285         tc_check_packets "dev $h3 ingress" 133 5
 286         check_err $? "Multicast not received on second host"
 287
 288         delete_mcast_sg $rp1 2001:db8:1::2 ff0e::3 $rp2 $rp3
 289
 290         $MZ $h1 -6 -c 5 -p 128 -t udp -a 00:11:22:33:44:55 \
 291                 -b 33:33:00:00:00:03 -A 2001:db8:1::2 -B ff0e::3 -q
 292
 293         tc_check_packets "dev $h2 ingress" 122 5
 294         check_err $? "Multicast received on first host although deleted"
 295         tc_check_packets "dev $h3 ingress" 133 5
 296         check_err $? "Multicast received on second host although deleted"
 297
 298         tc filter del dev $h3 ingress protocol ipv6 pref 1 handle 133 flower
 299         tc filter del dev $h2 ingress protocol ipv6 pref 1 handle 122 flower
 300
 301         log_test "mcast IPv6"
 302 }
 303
 304 trap cleanup EXIT
 305
 306 setup_prepare
 307 setup_wait
 308
 309 tests_run
 310
 311 exit $EXIT_STATUS