507 lines
15 KiB
Bash
507 lines
15 KiB
Bash
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# +------------------+
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# | H1 (v$h1) |
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# | 2001:db8:1::2/64 |
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# | 198.51.100.2/28 |
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# | $h1 + |
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# +-------------|----+
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# |
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# +-------------|-------------------------------+
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# | SW1 | |
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# | $rp1 + |
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# | 198.51.100.1/28 |
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# | 2001:db8:1::1/64 |
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# | |
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# | 2001:db8:2::1/64 2001:db8:3::1/64 |
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# | 198.51.100.17/28 198.51.100.33/28 |
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# | $rp2 + $rp3 + |
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# +--------------|--------------------------|---+
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# | |
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# | |
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# +--------------|---+ +--------------|---+
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# | H2 (v$h2) | | | H3 (v$h3) | |
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# | $h2 + | | $h3 + |
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# | 198.51.100.18/28 | | 198.51.100.34/28 |
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# | 2001:db8:2::2/64 | | 2001:db8:3::2/64 |
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# +------------------+ +------------------+
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#
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ALL_TESTS="mcast_v4 mcast_v6 rpf_v4 rpf_v6 unres_v4 unres_v6"
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NUM_NETIFS=6
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source lib.sh
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source tc_common.sh
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require_command $MCD
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require_command $MC_CLI
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table_name=selftests
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h1_create()
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{
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simple_if_init $h1 198.51.100.2/28 2001:db8:1::2/64
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ip route add 198.51.100.16/28 vrf v$h1 nexthop via 198.51.100.1
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ip route add 198.51.100.32/28 vrf v$h1 nexthop via 198.51.100.1
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ip route add 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::1
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ip route add 2001:db8:3::/64 vrf v$h1 nexthop via 2001:db8:1::1
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tc qdisc add dev $h1 ingress
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}
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h1_destroy()
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{
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tc qdisc del dev $h1 ingress
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ip route del 2001:db8:3::/64 vrf v$h1
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ip route del 2001:db8:2::/64 vrf v$h1
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ip route del 198.51.100.32/28 vrf v$h1
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ip route del 198.51.100.16/28 vrf v$h1
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simple_if_fini $h1 198.51.100.2/28 2001:db8:1::2/64
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}
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h2_create()
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{
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simple_if_init $h2 198.51.100.18/28 2001:db8:2::2/64
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ip route add 198.51.100.0/28 vrf v$h2 nexthop via 198.51.100.17
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ip route add 198.51.100.32/28 vrf v$h2 nexthop via 198.51.100.17
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ip route add 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::1
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ip route add 2001:db8:3::/64 vrf v$h2 nexthop via 2001:db8:2::1
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tc qdisc add dev $h2 ingress
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}
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h2_destroy()
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{
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tc qdisc del dev $h2 ingress
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ip route del 2001:db8:3::/64 vrf v$h2
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ip route del 2001:db8:1::/64 vrf v$h2
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ip route del 198.51.100.32/28 vrf v$h2
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ip route del 198.51.100.0/28 vrf v$h2
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simple_if_fini $h2 198.51.100.18/28 2001:db8:2::2/64
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}
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h3_create()
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{
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simple_if_init $h3 198.51.100.34/28 2001:db8:3::2/64
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ip route add 198.51.100.0/28 vrf v$h3 nexthop via 198.51.100.33
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ip route add 198.51.100.16/28 vrf v$h3 nexthop via 198.51.100.33
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ip route add 2001:db8:1::/64 vrf v$h3 nexthop via 2001:db8:3::1
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ip route add 2001:db8:2::/64 vrf v$h3 nexthop via 2001:db8:3::1
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tc qdisc add dev $h3 ingress
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}
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h3_destroy()
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{
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tc qdisc del dev $h3 ingress
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ip route del 2001:db8:2::/64 vrf v$h3
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ip route del 2001:db8:1::/64 vrf v$h3
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ip route del 198.51.100.16/28 vrf v$h3
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ip route del 198.51.100.0/28 vrf v$h3
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simple_if_fini $h3 198.51.100.34/28 2001:db8:3::2/64
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}
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router_create()
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{
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ip link set dev $rp1 up
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ip link set dev $rp2 up
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ip link set dev $rp3 up
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ip address add 198.51.100.1/28 dev $rp1
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ip address add 198.51.100.17/28 dev $rp2
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ip address add 198.51.100.33/28 dev $rp3
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ip address add 2001:db8:1::1/64 dev $rp1
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ip address add 2001:db8:2::1/64 dev $rp2
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ip address add 2001:db8:3::1/64 dev $rp3
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tc qdisc add dev $rp3 ingress
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}
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router_destroy()
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{
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tc qdisc del dev $rp3 ingress
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ip address del 2001:db8:3::1/64 dev $rp3
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ip address del 2001:db8:2::1/64 dev $rp2
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ip address del 2001:db8:1::1/64 dev $rp1
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ip address del 198.51.100.33/28 dev $rp3
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ip address del 198.51.100.17/28 dev $rp2
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ip address del 198.51.100.1/28 dev $rp1
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ip link set dev $rp3 down
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ip link set dev $rp2 down
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ip link set dev $rp1 down
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}
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start_mcd()
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{
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SMCROUTEDIR="$(mktemp -d)"
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for ((i = 1; i <= $NUM_NETIFS; ++i)); do
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echo "phyint ${NETIFS[p$i]} enable" >> \
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$SMCROUTEDIR/$table_name.conf
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done
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$MCD -N -I $table_name -f $SMCROUTEDIR/$table_name.conf \
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-P $SMCROUTEDIR/$table_name.pid
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}
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kill_mcd()
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{
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pkill $MCD
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rm -rf $SMCROUTEDIR
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}
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setup_prepare()
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{
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h1=${NETIFS[p1]}
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rp1=${NETIFS[p2]}
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rp2=${NETIFS[p3]}
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h2=${NETIFS[p4]}
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rp3=${NETIFS[p5]}
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h3=${NETIFS[p6]}
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start_mcd
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vrf_prepare
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h1_create
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h2_create
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h3_create
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router_create
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forwarding_enable
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}
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cleanup()
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{
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pre_cleanup
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forwarding_restore
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router_destroy
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h3_destroy
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h2_destroy
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h1_destroy
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vrf_cleanup
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kill_mcd
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}
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create_mcast_sg()
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{
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local if_name=$1; shift
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local s_addr=$1; shift
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local mcast=$1; shift
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local dest_ifs=${@}
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$MC_CLI -I $table_name add $if_name $s_addr $mcast $dest_ifs
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}
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delete_mcast_sg()
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{
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local if_name=$1; shift
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local s_addr=$1; shift
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local mcast=$1; shift
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local dest_ifs=${@}
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$MC_CLI -I $table_name remove $if_name $s_addr $mcast $dest_ifs
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}
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mcast_v4()
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{
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# Add two interfaces to an MC group, send a packet to the MC group and
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# verify packets are received on both. Then delete the route and verify
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# packets are no longer received.
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RET=0
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tc filter add dev $h2 ingress protocol ip pref 1 handle 122 flower \
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dst_ip 225.1.2.3 action drop
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tc filter add dev $h3 ingress protocol ip pref 1 handle 133 flower \
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dst_ip 225.1.2.3 action drop
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create_mcast_sg $rp1 198.51.100.2 225.1.2.3 $rp2 $rp3
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# Send frames with the corresponding L2 destination address.
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$MZ $h1 -c 5 -p 128 -t udp -a 00:11:22:33:44:55 -b 01:00:5e:01:02:03 \
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-A 198.51.100.2 -B 225.1.2.3 -q
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tc_check_packets "dev $h2 ingress" 122 5
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check_err $? "Multicast not received on first host"
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tc_check_packets "dev $h3 ingress" 133 5
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check_err $? "Multicast not received on second host"
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delete_mcast_sg $rp1 198.51.100.2 225.1.2.3 $rp2 $rp3
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$MZ $h1 -c 5 -p 128 -t udp -a 00:11:22:33:44:55 -b 01:00:5e:01:02:03 \
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-A 198.51.100.2 -B 225.1.2.3 -q
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tc_check_packets "dev $h2 ingress" 122 5
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check_err $? "Multicast received on host although deleted"
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tc_check_packets "dev $h3 ingress" 133 5
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check_err $? "Multicast received on second host although deleted"
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tc filter del dev $h3 ingress protocol ip pref 1 handle 133 flower
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tc filter del dev $h2 ingress protocol ip pref 1 handle 122 flower
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log_test "mcast IPv4"
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}
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mcast_v6()
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{
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# Add two interfaces to an MC group, send a packet to the MC group and
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# verify packets are received on both. Then delete the route and verify
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# packets are no longer received.
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RET=0
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tc filter add dev $h2 ingress protocol ipv6 pref 1 handle 122 flower \
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dst_ip ff0e::3 action drop
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tc filter add dev $h3 ingress protocol ipv6 pref 1 handle 133 flower \
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dst_ip ff0e::3 action drop
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create_mcast_sg $rp1 2001:db8:1::2 ff0e::3 $rp2 $rp3
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# Send frames with the corresponding L2 destination address.
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$MZ $h1 -6 -c 5 -p 128 -t udp -a 00:11:22:33:44:55 \
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-b 33:33:00:00:00:03 -A 2001:db8:1::2 -B ff0e::3 -q
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tc_check_packets "dev $h2 ingress" 122 5
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check_err $? "Multicast not received on first host"
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tc_check_packets "dev $h3 ingress" 133 5
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check_err $? "Multicast not received on second host"
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delete_mcast_sg $rp1 2001:db8:1::2 ff0e::3 $rp2 $rp3
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$MZ $h1 -6 -c 5 -p 128 -t udp -a 00:11:22:33:44:55 \
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-b 33:33:00:00:00:03 -A 2001:db8:1::2 -B ff0e::3 -q
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tc_check_packets "dev $h2 ingress" 122 5
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check_err $? "Multicast received on first host although deleted"
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tc_check_packets "dev $h3 ingress" 133 5
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check_err $? "Multicast received on second host although deleted"
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tc filter del dev $h3 ingress protocol ipv6 pref 1 handle 133 flower
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tc filter del dev $h2 ingress protocol ipv6 pref 1 handle 122 flower
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log_test "mcast IPv6"
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}
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rpf_v4()
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{
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# Add a multicast route from first router port to the other two. Send
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# matching packets and test that both hosts receive them. Then, send
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# the same packets via the third router port and test that they do not
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# reach any host due to RPF check. A filter with 'skip_hw' is added to
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# test that devices capable of multicast routing offload trap those
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# packets. The filter is essentialy a NOP in other scenarios.
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RET=0
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tc filter add dev $h1 ingress protocol ip pref 1 handle 1 flower \
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dst_ip 225.1.2.3 ip_proto udp dst_port 12345 action drop
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tc filter add dev $h2 ingress protocol ip pref 1 handle 1 flower \
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dst_ip 225.1.2.3 ip_proto udp dst_port 12345 action drop
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tc filter add dev $h3 ingress protocol ip pref 1 handle 1 flower \
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dst_ip 225.1.2.3 ip_proto udp dst_port 12345 action drop
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tc filter add dev $rp3 ingress protocol ip pref 1 handle 1 flower \
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skip_hw dst_ip 225.1.2.3 ip_proto udp dst_port 12345 action pass
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create_mcast_sg $rp1 198.51.100.2 225.1.2.3 $rp2 $rp3
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$MZ $h1 -c 5 -p 128 -t udp "ttl=10,sp=54321,dp=12345" \
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-a 00:11:22:33:44:55 -b 01:00:5e:01:02:03 \
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-A 198.51.100.2 -B 225.1.2.3 -q
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tc_check_packets "dev $h2 ingress" 1 5
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check_err $? "Multicast not received on first host"
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tc_check_packets "dev $h3 ingress" 1 5
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check_err $? "Multicast not received on second host"
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$MZ $h3 -c 5 -p 128 -t udp "ttl=10,sp=54321,dp=12345" \
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-a 00:11:22:33:44:55 -b 01:00:5e:01:02:03 \
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-A 198.51.100.2 -B 225.1.2.3 -q
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tc_check_packets "dev $h1 ingress" 1 0
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check_err $? "Multicast received on first host when should not"
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tc_check_packets "dev $h2 ingress" 1 5
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check_err $? "Multicast received on second host when should not"
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tc_check_packets "dev $rp3 ingress" 1 5
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check_err $? "Packets not trapped due to RPF check"
|
||
|
|
|
||
|
|
delete_mcast_sg $rp1 198.51.100.2 225.1.2.3 $rp2 $rp3
|
||
|
|
|
||
|
|
tc filter del dev $rp3 ingress protocol ip pref 1 handle 1 flower
|
||
|
|
tc filter del dev $h3 ingress protocol ip pref 1 handle 1 flower
|
||
|
|
tc filter del dev $h2 ingress protocol ip pref 1 handle 1 flower
|
||
|
|
tc filter del dev $h1 ingress protocol ip pref 1 handle 1 flower
|
||
|
|
|
||
|
|
log_test "RPF IPv4"
|
||
|
|
}
|
||
|
|
|
||
|
|
rpf_v6()
|
||
|
|
{
|
||
|
|
RET=0
|
||
|
|
|
||
|
|
tc filter add dev $h1 ingress protocol ipv6 pref 1 handle 1 flower \
|
||
|
|
dst_ip ff0e::3 ip_proto udp dst_port 12345 action drop
|
||
|
|
tc filter add dev $h2 ingress protocol ipv6 pref 1 handle 1 flower \
|
||
|
|
dst_ip ff0e::3 ip_proto udp dst_port 12345 action drop
|
||
|
|
tc filter add dev $h3 ingress protocol ipv6 pref 1 handle 1 flower \
|
||
|
|
dst_ip ff0e::3 ip_proto udp dst_port 12345 action drop
|
||
|
|
tc filter add dev $rp3 ingress protocol ipv6 pref 1 handle 1 flower \
|
||
|
|
skip_hw dst_ip ff0e::3 ip_proto udp dst_port 12345 action pass
|
||
|
|
|
||
|
|
create_mcast_sg $rp1 2001:db8:1::2 ff0e::3 $rp2 $rp3
|
||
|
|
|
||
|
|
$MZ $h1 -6 -c 5 -p 128 -t udp "ttl=10,sp=54321,dp=12345" \
|
||
|
|
-a 00:11:22:33:44:55 -b 33:33:00:00:00:03 \
|
||
|
|
-A 2001:db8:1::2 -B ff0e::3 -q
|
||
|
|
|
||
|
|
tc_check_packets "dev $h2 ingress" 1 5
|
||
|
|
check_err $? "Multicast not received on first host"
|
||
|
|
tc_check_packets "dev $h3 ingress" 1 5
|
||
|
|
check_err $? "Multicast not received on second host"
|
||
|
|
|
||
|
|
$MZ $h3 -6 -c 5 -p 128 -t udp "ttl=10,sp=54321,dp=12345" \
|
||
|
|
-a 00:11:22:33:44:55 -b 33:33:00:00:00:03 \
|
||
|
|
-A 2001:db8:1::2 -B ff0e::3 -q
|
||
|
|
|
||
|
|
tc_check_packets "dev $h1 ingress" 1 0
|
||
|
|
check_err $? "Multicast received on first host when should not"
|
||
|
|
tc_check_packets "dev $h2 ingress" 1 5
|
||
|
|
check_err $? "Multicast received on second host when should not"
|
||
|
|
tc_check_packets "dev $rp3 ingress" 1 5
|
||
|
|
check_err $? "Packets not trapped due to RPF check"
|
||
|
|
|
||
|
|
delete_mcast_sg $rp1 2001:db8:1::2 ff0e::3 $rp2 $rp3
|
||
|
|
|
||
|
|
tc filter del dev $rp3 ingress protocol ipv6 pref 1 handle 1 flower
|
||
|
|
tc filter del dev $h3 ingress protocol ipv6 pref 1 handle 1 flower
|
||
|
|
tc filter del dev $h2 ingress protocol ipv6 pref 1 handle 1 flower
|
||
|
|
tc filter del dev $h1 ingress protocol ipv6 pref 1 handle 1 flower
|
||
|
|
|
||
|
|
log_test "RPF IPv6"
|
||
|
|
}
|
||
|
|
|
||
|
|
unres_v4()
|
||
|
|
{
|
||
|
|
# Send a multicast packet not corresponding to an installed route,
|
||
|
|
# causing the kernel to queue the packet for resolution and emit an
|
||
|
|
# IGMPMSG_NOCACHE notification. smcrouted will react to this
|
||
|
|
# notification by consulting its (*, G) list and installing an (S, G)
|
||
|
|
# route, which will be used to forward the queued packet.
|
||
|
|
|
||
|
|
RET=0
|
||
|
|
|
||
|
|
tc filter add dev $h2 ingress protocol ip pref 1 handle 1 flower \
|
||
|
|
dst_ip 225.1.2.3 ip_proto udp dst_port 12345 action drop
|
||
|
|
tc filter add dev $h3 ingress protocol ip pref 1 handle 1 flower \
|
||
|
|
dst_ip 225.1.2.3 ip_proto udp dst_port 12345 action drop
|
||
|
|
|
||
|
|
# Forwarding should fail before installing a matching (*, G).
|
||
|
|
$MZ $h1 -c 1 -p 128 -t udp "ttl=10,sp=54321,dp=12345" \
|
||
|
|
-a 00:11:22:33:44:55 -b 01:00:5e:01:02:03 \
|
||
|
|
-A 198.51.100.2 -B 225.1.2.3 -q
|
||
|
|
|
||
|
|
tc_check_packets "dev $h2 ingress" 1 0
|
||
|
|
check_err $? "Multicast received on first host when should not"
|
||
|
|
tc_check_packets "dev $h3 ingress" 1 0
|
||
|
|
check_err $? "Multicast received on second host when should not"
|
||
|
|
|
||
|
|
# Create (*, G). Will not be installed in the kernel.
|
||
|
|
create_mcast_sg $rp1 0.0.0.0 225.1.2.3 $rp2 $rp3
|
||
|
|
|
||
|
|
$MZ $h1 -c 1 -p 128 -t udp "ttl=10,sp=54321,dp=12345" \
|
||
|
|
-a 00:11:22:33:44:55 -b 01:00:5e:01:02:03 \
|
||
|
|
-A 198.51.100.2 -B 225.1.2.3 -q
|
||
|
|
|
||
|
|
tc_check_packets "dev $h2 ingress" 1 1
|
||
|
|
check_err $? "Multicast not received on first host"
|
||
|
|
tc_check_packets "dev $h3 ingress" 1 1
|
||
|
|
check_err $? "Multicast not received on second host"
|
||
|
|
|
||
|
|
delete_mcast_sg $rp1 0.0.0.0 225.1.2.3 $rp2 $rp3
|
||
|
|
|
||
|
|
tc filter del dev $h3 ingress protocol ip pref 1 handle 1 flower
|
||
|
|
tc filter del dev $h2 ingress protocol ip pref 1 handle 1 flower
|
||
|
|
|
||
|
|
log_test "Unresolved queue IPv4"
|
||
|
|
}
|
||
|
|
|
||
|
|
unres_v6()
|
||
|
|
{
|
||
|
|
# Send a multicast packet not corresponding to an installed route,
|
||
|
|
# causing the kernel to queue the packet for resolution and emit an
|
||
|
|
# MRT6MSG_NOCACHE notification. smcrouted will react to this
|
||
|
|
# notification by consulting its (*, G) list and installing an (S, G)
|
||
|
|
# route, which will be used to forward the queued packet.
|
||
|
|
|
||
|
|
RET=0
|
||
|
|
|
||
|
|
tc filter add dev $h2 ingress protocol ipv6 pref 1 handle 1 flower \
|
||
|
|
dst_ip ff0e::3 ip_proto udp dst_port 12345 action drop
|
||
|
|
tc filter add dev $h3 ingress protocol ipv6 pref 1 handle 1 flower \
|
||
|
|
dst_ip ff0e::3 ip_proto udp dst_port 12345 action drop
|
||
|
|
|
||
|
|
# Forwarding should fail before installing a matching (*, G).
|
||
|
|
$MZ $h1 -6 -c 1 -p 128 -t udp "ttl=10,sp=54321,dp=12345" \
|
||
|
|
-a 00:11:22:33:44:55 -b 33:33:00:00:00:03 \
|
||
|
|
-A 2001:db8:1::2 -B ff0e::3 -q
|
||
|
|
|
||
|
|
tc_check_packets "dev $h2 ingress" 1 0
|
||
|
|
check_err $? "Multicast received on first host when should not"
|
||
|
|
tc_check_packets "dev $h3 ingress" 1 0
|
||
|
|
check_err $? "Multicast received on second host when should not"
|
||
|
|
|
||
|
|
# Create (*, G). Will not be installed in the kernel.
|
||
|
|
create_mcast_sg $rp1 :: ff0e::3 $rp2 $rp3
|
||
|
|
|
||
|
|
$MZ $h1 -6 -c 1 -p 128 -t udp "ttl=10,sp=54321,dp=12345" \
|
||
|
|
-a 00:11:22:33:44:55 -b 33:33:00:00:00:03 \
|
||
|
|
-A 2001:db8:1::2 -B ff0e::3 -q
|
||
|
|
|
||
|
|
tc_check_packets "dev $h2 ingress" 1 1
|
||
|
|
check_err $? "Multicast not received on first host"
|
||
|
|
tc_check_packets "dev $h3 ingress" 1 1
|
||
|
|
check_err $? "Multicast not received on second host"
|
||
|
|
|
||
|
|
delete_mcast_sg $rp1 :: ff0e::3 $rp2 $rp3
|
||
|
|
|
||
|
|
tc filter del dev $h3 ingress protocol ipv6 pref 1 handle 1 flower
|
||
|
|
tc filter del dev $h2 ingress protocol ipv6 pref 1 handle 1 flower
|
||
|
|
|
||
|
|
log_test "Unresolved queue IPv6"
|
||
|
|
}
|
||
|
|
|
||
|
|
trap cleanup EXIT
|
||
|
|
|
||
|
|
setup_prepare
|
||
|
|
setup_wait
|
||
|
|
|
||
|
|
tests_run
|
||
|
|
|
||
|
|
exit $EXIT_STATUS
|