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selftests: forwarding: add tunnel_key "nofrag" test case
Add a selftest that configures metadata tunnel encapsulation using the TC "tunnel_key" action: it includes a test case for setting "nofrag" flag. Example output: # selftests: net/forwarding: tc_tunnel_key.sh # TEST: tunnel_key nofrag (skip_hw) [ OK ] # INFO: Could not test offloaded functionality ok 1 selftests: net/forwarding: tc_tunnel_key.sh Signed-off-by: Davide Caratti <dcaratti@redhat.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Davide Caratti
Jakub Kicinski
parent
b8617f8eed
commit
533a89b194
@ -85,6 +85,7 @@ TEST_PROGS = bridge_igmp.sh \
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tc_mpls_l2vpn.sh \
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tc_police.sh \
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tc_shblocks.sh \
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tc_tunnel_key.sh \
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tc_vlan_modify.sh \
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vxlan_asymmetric_ipv6.sh \
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vxlan_asymmetric.sh \
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161
tools/testing/selftests/net/forwarding/tc_tunnel_key.sh
Executable file
161
tools/testing/selftests/net/forwarding/tc_tunnel_key.sh
Executable file
@ -0,0 +1,161 @@
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Kselftest framework requirement - SKIP code is 4.
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ksft_skip=4
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ALL_TESTS="tunnel_key_nofrag_test"
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NUM_NETIFS=4
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source tc_common.sh
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source lib.sh
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tcflags="skip_hw"
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h1_create()
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{
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simple_if_init $h1 192.0.2.1/24
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forwarding_enable
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mtu_set $h1 1500
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tunnel_create h1-et vxlan 192.0.2.1 192.0.2.2 dev $h1 dstport 0 external
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tc qdisc add dev h1-et clsact
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mtu_set h1-et 1230
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mtu_restore $h1
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mtu_set $h1 1000
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}
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h1_destroy()
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{
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tc qdisc del dev h1-et clsact
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tunnel_destroy h1-et
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forwarding_restore
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mtu_restore $h1
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simple_if_fini $h1 192.0.2.1/24
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}
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h2_create()
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{
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simple_if_init $h2 192.0.2.2/24
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}
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h2_destroy()
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{
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simple_if_fini $h2 192.0.2.2/24
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}
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switch_create()
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{
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simple_if_init $swp1 192.0.2.2/24
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tc qdisc add dev $swp1 clsact
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simple_if_init $swp2 192.0.2.1/24
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}
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switch_destroy()
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{
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simple_if_fini $swp2 192.0.2.1/24
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tc qdisc del dev $swp1 clsact
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simple_if_fini $swp1 192.0.2.2/24
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}
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setup_prepare()
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{
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h1=${NETIFS[p1]}
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swp1=${NETIFS[p2]}
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swp2=${NETIFS[p3]}
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h2=${NETIFS[p4]}
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h1mac=$(mac_get $h1)
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h2mac=$(mac_get $h2)
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swp1origmac=$(mac_get $swp1)
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swp2origmac=$(mac_get $swp2)
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ip link set $swp1 address $h2mac
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ip link set $swp2 address $h1mac
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vrf_prepare
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h1_create
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h2_create
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switch_create
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if ! tc action add action tunnel_key help 2>&1 | grep -q nofrag; then
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log_test "SKIP: iproute doesn't support nofrag"
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exit $ksft_skip
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fi
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}
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cleanup()
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{
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pre_cleanup
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switch_destroy
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h2_destroy
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h1_destroy
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vrf_cleanup
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ip link set $swp2 address $swp2origmac
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ip link set $swp1 address $swp1origmac
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}
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tunnel_key_nofrag_test()
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{
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RET=0
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local i
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tc filter add dev $swp1 ingress protocol ip pref 100 handle 100 \
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flower ip_flags nofrag action drop
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tc filter add dev $swp1 ingress protocol ip pref 101 handle 101 \
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flower ip_flags firstfrag action drop
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tc filter add dev $swp1 ingress protocol ip pref 102 handle 102 \
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flower ip_flags nofirstfrag action drop
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# test 'nofrag' set
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tc filter add dev h1-et egress protocol all pref 1 handle 1 matchall $tcflags \
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action tunnel_key set src_ip 192.0.2.1 dst_ip 192.0.2.2 id 42 nofrag index 10
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$MZ h1-et -c 1 -p 930 -a 00:aa:bb:cc:dd:ee -b 00:ee:dd:cc:bb:aa -t ip -q
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tc_check_packets "dev $swp1 ingress" 100 1
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check_err $? "packet smaller than MTU was not tunneled"
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$MZ h1-et -c 1 -p 931 -a 00:aa:bb:cc:dd:ee -b 00:ee:dd:cc:bb:aa -t ip -q
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tc_check_packets "dev $swp1 ingress" 100 1
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check_err $? "packet bigger than MTU matched nofrag (nofrag was set)"
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tc_check_packets "dev $swp1 ingress" 101 0
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check_err $? "packet bigger than MTU matched firstfrag (nofrag was set)"
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tc_check_packets "dev $swp1 ingress" 102 0
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check_err $? "packet bigger than MTU matched nofirstfrag (nofrag was set)"
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# test 'nofrag' cleared
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tc actions change action tunnel_key set src_ip 192.0.2.1 dst_ip 192.0.2.2 id 42 index 10
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$MZ h1-et -c 1 -p 931 -a 00:aa:bb:cc:dd:ee -b 00:ee:dd:cc:bb:aa -t ip -q
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tc_check_packets "dev $swp1 ingress" 100 1
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check_err $? "packet bigger than MTU matched nofrag (nofrag was unset)"
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tc_check_packets "dev $swp1 ingress" 101 1
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check_err $? "packet bigger than MTU didn't match firstfrag (nofrag was unset) "
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tc_check_packets "dev $swp1 ingress" 102 1
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check_err $? "packet bigger than MTU didn't match nofirstfrag (nofrag was unset) "
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for i in 100 101 102; do
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tc filter del dev $swp1 ingress protocol ip pref $i handle $i flower
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done
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tc filter del dev h1-et egress pref 1 handle 1 matchall
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log_test "tunnel_key nofrag ($tcflags)"
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}
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trap cleanup EXIT
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setup_prepare
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setup_wait
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tests_run
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tc_offload_check
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if [[ $? -ne 0 ]]; then
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log_info "Could not test offloaded functionality"
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else
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tcflags="skip_sw"
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tests_run
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fi
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exit $EXIT_STATUS
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