| #!/bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| |
| # +------------------+ |
| # | H1 (v$h1) | |
| # | 2001:db8:1::2/64 | |
| # | 198.51.100.2/28 | |
| # | $h1 + | |
| # +-------------|----+ |
| # | |
| # +-------------|-------------------------------+ |
| # | SW1 | | |
| # | $rp1 + | |
| # | 198.51.100.1/28 | |
| # | 2001:db8:1::1/64 | |
| # | | |
| # | 2001:db8:2::1/64 2001:db8:3::1/64 | |
| # | 198.51.100.17/28 198.51.100.33/28 | |
| # | $rp2 + $rp3 + | |
| # +--------------|--------------------------|---+ |
| # | | |
| # | | |
| # +--------------|---+ +--------------|---+ |
| # | H2 (v$h2) | | | H3 (v$h3) | | |
| # | $h2 + | | $h3 + | |
| # | 198.51.100.18/28 | | 198.51.100.34/28 | |
| # | 2001:db8:2::2/64 | | 2001:db8:3::2/64 | |
| # +------------------+ +------------------+ |
| # |
| |
| ALL_TESTS="mcast_v4 mcast_v6 rpf_v4 rpf_v6 unres_v4 unres_v6" |
| NUM_NETIFS=6 |
| source lib.sh |
| source tc_common.sh |
| |
| require_command $MCD |
| require_command $MC_CLI |
| table_name=selftests |
| |
| h1_create() |
| { |
| simple_if_init $h1 198.51.100.2/28 2001:db8:1::2/64 |
| |
| ip route add 198.51.100.16/28 vrf v$h1 nexthop via 198.51.100.1 |
| ip route add 198.51.100.32/28 vrf v$h1 nexthop via 198.51.100.1 |
| |
| ip route add 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::1 |
| ip route add 2001:db8:3::/64 vrf v$h1 nexthop via 2001:db8:1::1 |
| |
| tc qdisc add dev $h1 ingress |
| } |
| |
| h1_destroy() |
| { |
| tc qdisc del dev $h1 ingress |
| |
| ip route del 2001:db8:3::/64 vrf v$h1 |
| ip route del 2001:db8:2::/64 vrf v$h1 |
| |
| ip route del 198.51.100.32/28 vrf v$h1 |
| ip route del 198.51.100.16/28 vrf v$h1 |
| |
| simple_if_fini $h1 198.51.100.2/28 2001:db8:1::2/64 |
| } |
| |
| h2_create() |
| { |
| simple_if_init $h2 198.51.100.18/28 2001:db8:2::2/64 |
| |
| ip route add 198.51.100.0/28 vrf v$h2 nexthop via 198.51.100.17 |
| ip route add 198.51.100.32/28 vrf v$h2 nexthop via 198.51.100.17 |
| |
| ip route add 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::1 |
| ip route add 2001:db8:3::/64 vrf v$h2 nexthop via 2001:db8:2::1 |
| |
| tc qdisc add dev $h2 ingress |
| } |
| |
| h2_destroy() |
| { |
| tc qdisc del dev $h2 ingress |
| |
| ip route del 2001:db8:3::/64 vrf v$h2 |
| ip route del 2001:db8:1::/64 vrf v$h2 |
| |
| ip route del 198.51.100.32/28 vrf v$h2 |
| ip route del 198.51.100.0/28 vrf v$h2 |
| |
| simple_if_fini $h2 198.51.100.18/28 2001:db8:2::2/64 |
| } |
| |
| h3_create() |
| { |
| simple_if_init $h3 198.51.100.34/28 2001:db8:3::2/64 |
| |
| ip route add 198.51.100.0/28 vrf v$h3 nexthop via 198.51.100.33 |
| ip route add 198.51.100.16/28 vrf v$h3 nexthop via 198.51.100.33 |
| |
| ip route add 2001:db8:1::/64 vrf v$h3 nexthop via 2001:db8:3::1 |
| ip route add 2001:db8:2::/64 vrf v$h3 nexthop via 2001:db8:3::1 |
| |
| tc qdisc add dev $h3 ingress |
| } |
| |
| h3_destroy() |
| { |
| tc qdisc del dev $h3 ingress |
| |
| ip route del 2001:db8:2::/64 vrf v$h3 |
| ip route del 2001:db8:1::/64 vrf v$h3 |
| |
| ip route del 198.51.100.16/28 vrf v$h3 |
| ip route del 198.51.100.0/28 vrf v$h3 |
| |
| simple_if_fini $h3 198.51.100.34/28 2001:db8:3::2/64 |
| } |
| |
| router_create() |
| { |
| ip link set dev $rp1 up |
| ip link set dev $rp2 up |
| ip link set dev $rp3 up |
| |
| ip address add 198.51.100.1/28 dev $rp1 |
| ip address add 198.51.100.17/28 dev $rp2 |
| ip address add 198.51.100.33/28 dev $rp3 |
| |
| ip address add 2001:db8:1::1/64 dev $rp1 |
| ip address add 2001:db8:2::1/64 dev $rp2 |
| ip address add 2001:db8:3::1/64 dev $rp3 |
| |
| tc qdisc add dev $rp3 ingress |
| } |
| |
| router_destroy() |
| { |
| tc qdisc del dev $rp3 ingress |
| |
| ip address del 2001:db8:3::1/64 dev $rp3 |
| ip address del 2001:db8:2::1/64 dev $rp2 |
| ip address del 2001:db8:1::1/64 dev $rp1 |
| |
| ip address del 198.51.100.33/28 dev $rp3 |
| ip address del 198.51.100.17/28 dev $rp2 |
| ip address del 198.51.100.1/28 dev $rp1 |
| |
| ip link set dev $rp3 down |
| ip link set dev $rp2 down |
| ip link set dev $rp1 down |
| } |
| |
| start_mcd() |
| { |
| SMCROUTEDIR="$(mktemp -d)" |
| |
| for ((i = 1; i <= $NUM_NETIFS; ++i)); do |
| echo "phyint ${NETIFS[p$i]} enable" >> \ |
| $SMCROUTEDIR/$table_name.conf |
| done |
| |
| $MCD -N -I $table_name -f $SMCROUTEDIR/$table_name.conf \ |
| -P $SMCROUTEDIR/$table_name.pid |
| } |
| |
| kill_mcd() |
| { |
| pkill $MCD |
| rm -rf $SMCROUTEDIR |
| } |
| |
| setup_prepare() |
| { |
| h1=${NETIFS[p1]} |
| rp1=${NETIFS[p2]} |
| |
| rp2=${NETIFS[p3]} |
| h2=${NETIFS[p4]} |
| |
| rp3=${NETIFS[p5]} |
| h3=${NETIFS[p6]} |
| |
| start_mcd |
| |
| vrf_prepare |
| |
| h1_create |
| h2_create |
| h3_create |
| |
| router_create |
| |
| forwarding_enable |
| } |
| |
| cleanup() |
| { |
| pre_cleanup |
| |
| forwarding_restore |
| |
| router_destroy |
| |
| h3_destroy |
| h2_destroy |
| h1_destroy |
| |
| vrf_cleanup |
| |
| kill_mcd |
| } |
| |
| create_mcast_sg() |
| { |
| local if_name=$1; shift |
| local s_addr=$1; shift |
| local mcast=$1; shift |
| local dest_ifs=${@} |
| |
| $MC_CLI -I $table_name add $if_name $s_addr $mcast $dest_ifs |
| } |
| |
| delete_mcast_sg() |
| { |
| local if_name=$1; shift |
| local s_addr=$1; shift |
| local mcast=$1; shift |
| local dest_ifs=${@} |
| |
| $MC_CLI -I $table_name remove $if_name $s_addr $mcast $dest_ifs |
| } |
| |
| mcast_v4() |
| { |
| # Add two interfaces to an MC group, send a packet to the MC group and |
| # verify packets are received on both. Then delete the route and verify |
| # packets are no longer received. |
| |
| RET=0 |
| |
| tc filter add dev $h2 ingress protocol ip pref 1 handle 122 flower \ |
| dst_ip 225.1.2.3 action drop |
| tc filter add dev $h3 ingress protocol ip pref 1 handle 133 flower \ |
| dst_ip 225.1.2.3 action drop |
| |
| create_mcast_sg $rp1 198.51.100.2 225.1.2.3 $rp2 $rp3 |
| |
| # Send frames with the corresponding L2 destination address. |
| $MZ $h1 -c 5 -p 128 -t udp -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" 122 5 |
| check_err $? "Multicast not received on first host" |
| tc_check_packets "dev $h3 ingress" 133 5 |
| check_err $? "Multicast not received on second host" |
| |
| delete_mcast_sg $rp1 198.51.100.2 225.1.2.3 $rp2 $rp3 |
| |
| $MZ $h1 -c 5 -p 128 -t udp -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" 122 5 |
| check_err $? "Multicast received on host although deleted" |
| tc_check_packets "dev $h3 ingress" 133 5 |
| check_err $? "Multicast received on second host although deleted" |
| |
| tc filter del dev $h3 ingress protocol ip pref 1 handle 133 flower |
| tc filter del dev $h2 ingress protocol ip pref 1 handle 122 flower |
| |
| log_test "mcast IPv4" |
| } |
| |
| mcast_v6() |
| { |
| # Add two interfaces to an MC group, send a packet to the MC group and |
| # verify packets are received on both. Then delete the route and verify |
| # packets are no longer received. |
| |
| RET=0 |
| |
| tc filter add dev $h2 ingress protocol ipv6 pref 1 handle 122 flower \ |
| dst_ip ff0e::3 action drop |
| tc filter add dev $h3 ingress protocol ipv6 pref 1 handle 133 flower \ |
| dst_ip ff0e::3 action drop |
| |
| create_mcast_sg $rp1 2001:db8:1::2 ff0e::3 $rp2 $rp3 |
| |
| # Send frames with the corresponding L2 destination address. |
| $MZ $h1 -6 -c 5 -p 128 -t udp -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" 122 5 |
| check_err $? "Multicast not received on first host" |
| tc_check_packets "dev $h3 ingress" 133 5 |
| check_err $? "Multicast not received on second host" |
| |
| delete_mcast_sg $rp1 2001:db8:1::2 ff0e::3 $rp2 $rp3 |
| |
| $MZ $h1 -6 -c 5 -p 128 -t udp -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" 122 5 |
| check_err $? "Multicast received on first host although deleted" |
| tc_check_packets "dev $h3 ingress" 133 5 |
| check_err $? "Multicast received on second host although deleted" |
| |
| tc filter del dev $h3 ingress protocol ipv6 pref 1 handle 133 flower |
| tc filter del dev $h2 ingress protocol ipv6 pref 1 handle 122 flower |
| |
| log_test "mcast IPv6" |
| } |
| |
| rpf_v4() |
| { |
| # Add a multicast route from first router port to the other two. Send |
| # matching packets and test that both hosts receive them. Then, send |
| # the same packets via the third router port and test that they do not |
| # reach any host due to RPF check. A filter with 'skip_hw' is added to |
| # test that devices capable of multicast routing offload trap those |
| # packets. The filter is essentialy a NOP in other scenarios. |
| |
| RET=0 |
| |
| tc filter add dev $h1 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 $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 |
| tc filter add dev $rp3 ingress protocol ip pref 1 handle 1 flower \ |
| skip_hw dst_ip 225.1.2.3 ip_proto udp dst_port 12345 action pass |
| |
| create_mcast_sg $rp1 198.51.100.2 225.1.2.3 $rp2 $rp3 |
| |
| $MZ $h1 -c 5 -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 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 -c 5 -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 $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 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 |
