| #!/bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Kselftest framework requirement - SKIP code is 4. |
| ksft_skip=4 |
| |
| ALL_TESTS="tunnel_key_nofrag_test" |
| |
| NUM_NETIFS=4 |
| source tc_common.sh |
| source lib.sh |
| |
| tcflags="skip_hw" |
| |
| h1_create() |
| { |
| simple_if_init $h1 192.0.2.1/24 |
| forwarding_enable |
| mtu_set $h1 1500 |
| tunnel_create h1-et vxlan 192.0.2.1 192.0.2.2 dev $h1 dstport 0 external |
| tc qdisc add dev h1-et clsact |
| mtu_set h1-et 1230 |
| mtu_restore $h1 |
| mtu_set $h1 1000 |
| } |
| |
| h1_destroy() |
| { |
| tc qdisc del dev h1-et clsact |
| tunnel_destroy h1-et |
| forwarding_restore |
| mtu_restore $h1 |
| simple_if_fini $h1 192.0.2.1/24 |
| } |
| |
| h2_create() |
| { |
| simple_if_init $h2 192.0.2.2/24 |
| } |
| |
| h2_destroy() |
| { |
| simple_if_fini $h2 192.0.2.2/24 |
| } |
| |
| switch_create() |
| { |
| simple_if_init $swp1 192.0.2.2/24 |
| tc qdisc add dev $swp1 clsact |
| simple_if_init $swp2 192.0.2.1/24 |
| } |
| |
| switch_destroy() |
| { |
| simple_if_fini $swp2 192.0.2.1/24 |
| tc qdisc del dev $swp1 clsact |
| simple_if_fini $swp1 192.0.2.2/24 |
| } |
| |
| setup_prepare() |
| { |
| h1=${NETIFS[p1]} |
| swp1=${NETIFS[p2]} |
| |
| swp2=${NETIFS[p3]} |
| h2=${NETIFS[p4]} |
| |
| h1mac=$(mac_get $h1) |
| h2mac=$(mac_get $h2) |
| |
| swp1origmac=$(mac_get $swp1) |
| swp2origmac=$(mac_get $swp2) |
| ip link set $swp1 address $h2mac |
| ip link set $swp2 address $h1mac |
| |
| vrf_prepare |
| |
| h1_create |
| h2_create |
| switch_create |
| |
| if ! tc action add action tunnel_key help 2>&1 | grep -q nofrag; then |
| log_test "SKIP: iproute doesn't support nofrag" |
| exit $ksft_skip |
| fi |
| } |
| |
| cleanup() |
| { |
| pre_cleanup |
| |
| switch_destroy |
| h2_destroy |
| h1_destroy |
| |
| vrf_cleanup |
| |
| ip link set $swp2 address $swp2origmac |
| ip link set $swp1 address $swp1origmac |
| } |
| |
| tunnel_key_nofrag_test() |
| { |
| RET=0 |
| local i |
| |
| tc filter add dev $swp1 ingress protocol ip pref 100 handle 100 \ |
| flower src_ip 192.0.2.1 dst_ip 192.0.2.2 ip_proto udp \ |
| ip_flags nofrag action drop |
| tc filter add dev $swp1 ingress protocol ip pref 101 handle 101 \ |
| flower src_ip 192.0.2.1 dst_ip 192.0.2.2 ip_proto udp \ |
| ip_flags firstfrag action drop |
| tc filter add dev $swp1 ingress protocol ip pref 102 handle 102 \ |
| flower src_ip 192.0.2.1 dst_ip 192.0.2.2 ip_proto udp \ |
| ip_flags nofirstfrag action drop |
| |
| # test 'nofrag' set |
| tc filter add dev h1-et egress protocol all pref 1 handle 1 matchall $tcflags \ |
| action tunnel_key set src_ip 192.0.2.1 dst_ip 192.0.2.2 id 42 nofrag index 10 |
| $MZ h1-et -c 1 -p 930 -a 00:aa:bb:cc:dd:ee -b 00:ee:dd:cc:bb:aa -t ip -q |
| tc_check_packets "dev $swp1 ingress" 100 1 |
| check_err $? "packet smaller than MTU was not tunneled" |
| |
| $MZ h1-et -c 1 -p 931 -a 00:aa:bb:cc:dd:ee -b 00:ee:dd:cc:bb:aa -t ip -q |
| tc_check_packets "dev $swp1 ingress" 100 1 |
| check_err $? "packet bigger than MTU matched nofrag (nofrag was set)" |
| tc_check_packets "dev $swp1 ingress" 101 0 |
| check_err $? "packet bigger than MTU matched firstfrag (nofrag was set)" |
| tc_check_packets "dev $swp1 ingress" 102 0 |
| check_err $? "packet bigger than MTU matched nofirstfrag (nofrag was set)" |
| |
| # test 'nofrag' cleared |
| tc actions change action tunnel_key set src_ip 192.0.2.1 dst_ip 192.0.2.2 id 42 index 10 |
| $MZ h1-et -c 1 -p 931 -a 00:aa:bb:cc:dd:ee -b 00:ee:dd:cc:bb:aa -t ip -q |
| tc_check_packets "dev $swp1 ingress" 100 1 |
| check_err $? "packet bigger than MTU matched nofrag (nofrag was unset)" |
| tc_check_packets "dev $swp1 ingress" 101 1 |
| check_err $? "packet bigger than MTU didn't match firstfrag (nofrag was unset) " |
| tc_check_packets "dev $swp1 ingress" 102 1 |
| check_err $? "packet bigger than MTU didn't match nofirstfrag (nofrag was unset) " |
| |
| for i in 100 101 102; do |
| tc filter del dev $swp1 ingress protocol ip pref $i handle $i flower |
| done |
| tc filter del dev h1-et egress pref 1 handle 1 matchall |
| |
| log_test "tunnel_key nofrag ($tcflags)" |
| } |
| |
| trap cleanup EXIT |
| |
| setup_prepare |
| setup_wait |
| |
| tests_run |
| |
| tc_offload_check |
| if [[ $? -ne 0 ]]; then |
| log_info "Could not test offloaded functionality" |
| else |
| tcflags="skip_sw" |
| tests_run |
| fi |
| |
| exit $EXIT_STATUS |
