| #!/bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| |
| ALL_TESTS="ping_ipv4" |
| NUM_NETIFS=6 |
| source lib.sh |
| |
| h1_create() |
| { |
| vrf_create "vrf-h1" |
| ip link set dev $h1 master vrf-h1 |
| |
| ip link set dev vrf-h1 up |
| ip link set dev $h1 up |
| |
| ip address add 192.0.2.2/24 dev $h1 |
| |
| ip route add 198.51.100.0/24 vrf vrf-h1 nexthop via 192.0.2.1 |
| ip route add 198.51.200.0/24 vrf vrf-h1 nexthop via 192.0.2.1 |
| } |
| |
| h1_destroy() |
| { |
| ip route del 198.51.200.0/24 vrf vrf-h1 |
| ip route del 198.51.100.0/24 vrf vrf-h1 |
| |
| ip address del 192.0.2.2/24 dev $h1 |
| |
| ip link set dev $h1 down |
| vrf_destroy "vrf-h1" |
| } |
| |
| h2_create() |
| { |
| vrf_create "vrf-h2" |
| ip link set dev $h2 master vrf-h2 |
| |
| ip link set dev vrf-h2 up |
| ip link set dev $h2 up |
| |
| ip address add 198.51.100.2/24 dev $h2 |
| |
| ip route add 192.0.2.0/24 vrf vrf-h2 nexthop via 198.51.100.1 |
| ip route add 198.51.200.0/24 vrf vrf-h2 nexthop via 198.51.100.1 |
| } |
| |
| h2_destroy() |
| { |
| ip route del 198.51.200.0/24 vrf vrf-h2 |
| ip route del 192.0.2.0/24 vrf vrf-h2 |
| |
| ip address del 198.51.100.2/24 dev $h2 |
| |
| ip link set dev $h2 down |
| vrf_destroy "vrf-h2" |
| } |
| |
| h3_create() |
| { |
| vrf_create "vrf-h3" |
| ip link set dev $h3 master vrf-h3 |
| |
| ip link set dev vrf-h3 up |
| ip link set dev $h3 up |
| |
| ip address add 198.51.200.2/24 dev $h3 |
| |
| ip route add 192.0.2.0/24 vrf vrf-h3 nexthop via 198.51.200.1 |
| ip route add 198.51.100.0/24 vrf vrf-h3 nexthop via 198.51.200.1 |
| } |
| |
| h3_destroy() |
| { |
| ip route del 198.51.100.0/24 vrf vrf-h3 |
| ip route del 192.0.2.0/24 vrf vrf-h3 |
| |
| ip address del 198.51.200.2/24 dev $h3 |
| |
| ip link set dev $h3 down |
| vrf_destroy "vrf-h3" |
| } |
| |
| router_create() |
| { |
| ip link set dev $rp1 up |
| ip link set dev $rp2 up |
| ip link set dev $rp3 up |
| |
| ip address add 192.0.2.1/24 dev $rp1 |
| |
| ip address add 198.51.100.1/24 dev $rp2 |
| ip address add 198.51.200.1/24 dev $rp3 |
| } |
| |
| router_destroy() |
| { |
| ip address del 198.51.200.1/24 dev $rp3 |
| ip address del 198.51.100.1/24 dev $rp2 |
| |
| ip address del 192.0.2.1/24 dev $rp1 |
| |
| ip link set dev $rp3 down |
| ip link set dev $rp2 down |
| ip link set dev $rp1 down |
| } |
| |
| setup_prepare() |
| { |
| h1=${NETIFS[p1]} |
| rp1=${NETIFS[p2]} |
| |
| rp2=${NETIFS[p3]} |
| h2=${NETIFS[p4]} |
| |
| rp3=${NETIFS[p5]} |
| h3=${NETIFS[p6]} |
| |
| vrf_prepare |
| |
| h1_create |
| h2_create |
| h3_create |
| |
| router_create |
| |
| forwarding_enable |
| } |
| |
| cleanup() |
| { |
| pre_cleanup |
| |
| forwarding_restore |
| |
| router_destroy |
| |
| h3_destroy |
| h2_destroy |
| h1_destroy |
| |
| vrf_cleanup |
| } |
| |
| bc_forwarding_disable() |
| { |
| sysctl_set net.ipv4.conf.all.bc_forwarding 0 |
| sysctl_set net.ipv4.conf.$rp1.bc_forwarding 0 |
| } |
| |
| bc_forwarding_enable() |
| { |
| sysctl_set net.ipv4.conf.all.bc_forwarding 1 |
| sysctl_set net.ipv4.conf.$rp1.bc_forwarding 1 |
| } |
| |
| bc_forwarding_restore() |
| { |
| sysctl_restore net.ipv4.conf.$rp1.bc_forwarding |
| sysctl_restore net.ipv4.conf.all.bc_forwarding |
| } |
| |
| ping_test_from() |
| { |
| local oif=$1 |
| local dip=$2 |
| local from=$3 |
| local fail=${4:-0} |
| |
| RET=0 |
| |
| log_info "ping $dip, expected reply from $from" |
| ip vrf exec $(master_name_get $oif) \ |
| $PING -I $oif $dip -c 10 -i 0.1 -w 2 -b 2>&1 | grep $from &> /dev/null |
| check_err_fail $fail $? |
| } |
| |
| ping_ipv4() |
| { |
| sysctl_set net.ipv4.icmp_echo_ignore_broadcasts 0 |
| |
| bc_forwarding_disable |
| log_info "bc_forwarding disabled on r1 =>" |
| ping_test_from $h1 198.51.100.255 192.0.2.1 |
| log_test "h1 -> net2: reply from r1 (not forwarding)" |
| ping_test_from $h1 198.51.200.255 192.0.2.1 |
| log_test "h1 -> net3: reply from r1 (not forwarding)" |
| ping_test_from $h1 192.0.2.255 192.0.2.1 |
| log_test "h1 -> net1: reply from r1 (not dropping)" |
| ping_test_from $h1 255.255.255.255 192.0.2.1 |
| log_test "h1 -> 255.255.255.255: reply from r1 (not forwarding)" |
| |
| ping_test_from $h2 192.0.2.255 198.51.100.1 |
| log_test "h2 -> net1: reply from r1 (not forwarding)" |
| ping_test_from $h2 198.51.200.255 198.51.100.1 |
| log_test "h2 -> net3: reply from r1 (not forwarding)" |
| ping_test_from $h2 198.51.100.255 198.51.100.1 |
| log_test "h2 -> net2: reply from r1 (not dropping)" |
| ping_test_from $h2 255.255.255.255 198.51.100.1 |
| log_test "h2 -> 255.255.255.255: reply from r1 (not forwarding)" |
| bc_forwarding_restore |
| |
| bc_forwarding_enable |
| log_info "bc_forwarding enabled on r1 =>" |
| ping_test_from $h1 198.51.100.255 198.51.100.2 |
| log_test "h1 -> net2: reply from h2 (forwarding)" |
| ping_test_from $h1 198.51.200.255 198.51.200.2 |
| log_test "h1 -> net3: reply from h3 (forwarding)" |
| ping_test_from $h1 192.0.2.255 192.0.2.1 1 |
| log_test "h1 -> net1: no reply (dropping)" |
| ping_test_from $h1 255.255.255.255 192.0.2.1 |
| log_test "h1 -> 255.255.255.255: reply from r1 (not forwarding)" |
| |
| ping_test_from $h2 192.0.2.255 192.0.2.2 |
| log_test "h2 -> net1: reply from h1 (forwarding)" |
| ping_test_from $h2 198.51.200.255 198.51.200.2 |
| log_test "h2 -> net3: reply from h3 (forwarding)" |
| ping_test_from $h2 198.51.100.255 198.51.100.1 1 |
| log_test "h2 -> net2: no reply (dropping)" |
| ping_test_from $h2 255.255.255.255 198.51.100.1 |
| log_test "h2 -> 255.255.255.255: reply from r1 (not forwarding)" |
| bc_forwarding_restore |
| |
| sysctl_restore net.ipv4.icmp_echo_ignore_broadcasts |
| } |
| |
| trap cleanup EXIT |
| |
| setup_prepare |
| setup_wait |
| |
| tests_run |
| |
| exit $EXIT_STATUS |
