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Ido Schimmel says: ==================== selftests: forwarding: Add ip6gre tests This patchset adds forwarding selftests for ip6gre. The tests can be run with veth pairs or with physical loopbacks. Patch #1 adds a new config option to determine if 'skip_sw' / 'skip_hw' flags are used when installing tc filters. By default, it is not set which means the flags are not used. 'skip_sw' is useful to ensure traffic is forwarded by the hardware data path. Patch #2 adds a new helper function. Patches #3-#4 add the forwarding selftests. Patch #5 adds a mlxsw-specific selftest to validate correct behavior of the 'decap_error' trap with IPv6 underlay. Patches #6-#8 align the corresponding IPv4 underlay test to the IPv6 one. ==================== Signed-off-by: David S. Miller <[email protected]>
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tools/testing/selftests/drivers/net/mlxsw/spectrum-2/devlink_trap_tunnel_ipip6.sh
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| #!/bin/bash | ||
| # SPDX-License-Identifier: GPL-2.0 | ||
| # | ||
| # Test devlink-trap tunnel exceptions functionality over mlxsw. | ||
| # Check all exception traps to make sure they are triggered under the right | ||
| # conditions. | ||
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| # +-------------------------+ | ||
| # | H1 | | ||
| # | $h1 + | | ||
| # | 2001:db8:1::1/64 | | | ||
| # +-------------------|-----+ | ||
| # | | ||
| # +-------------------|-----+ | ||
| # | SW1 | | | ||
| # | $swp1 + | | ||
| # | 2001:db8:1::2/64 | | ||
| # | | | ||
| # | + g1 (ip6gre) | | ||
| # | loc=2001:db8:3::1 | | ||
| # | rem=2001:db8:3::2 | | ||
| # | tos=inherit | | ||
| # | | | ||
| # | + $rp1 | | ||
| # | | 2001:db8:10::1/64 | | ||
| # +--|----------------------+ | ||
| # | | ||
| # +--|----------------------+ | ||
| # | | VRF2 | | ||
| # | + $rp2 | | ||
| # | 2001:db8:10::2/64 | | ||
| # +-------------------------+ | ||
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| lib_dir=$(dirname $0)/../../../../net/forwarding | ||
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| ALL_TESTS=" | ||
| decap_error_test | ||
| " | ||
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| NUM_NETIFS=4 | ||
| source $lib_dir/lib.sh | ||
| source $lib_dir/tc_common.sh | ||
| source $lib_dir/devlink_lib.sh | ||
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| h1_create() | ||
| { | ||
| simple_if_init $h1 2001:db8:1::1/64 | ||
| } | ||
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| h1_destroy() | ||
| { | ||
| simple_if_fini $h1 2001:db8:1::1/64 | ||
| } | ||
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| vrf2_create() | ||
| { | ||
| simple_if_init $rp2 2001:db8:10::2/64 | ||
| } | ||
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| vrf2_destroy() | ||
| { | ||
| simple_if_fini $rp2 2001:db8:10::2/64 | ||
| } | ||
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| switch_create() | ||
| { | ||
| ip link set dev $swp1 up | ||
| __addr_add_del $swp1 add 2001:db8:1::2/64 | ||
| tc qdisc add dev $swp1 clsact | ||
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| tunnel_create g1 ip6gre 2001:db8:3::1 2001:db8:3::2 tos inherit \ | ||
| ttl inherit | ||
| ip link set dev g1 up | ||
| __addr_add_del g1 add 2001:db8:3::1/128 | ||
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| ip link set dev $rp1 up | ||
| __addr_add_del $rp1 add 2001:db8:10::1/64 | ||
| } | ||
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| switch_destroy() | ||
| { | ||
| __addr_add_del $rp1 del 2001:db8:10::1/64 | ||
| ip link set dev $rp1 down | ||
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| __addr_add_del g1 del 2001:db8:3::1/128 | ||
| ip link set dev g1 down | ||
| tunnel_destroy g1 | ||
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| tc qdisc del dev $swp1 clsact | ||
| __addr_add_del $swp1 del 2001:db8:1::2/64 | ||
| ip link set dev $swp1 down | ||
| } | ||
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| setup_prepare() | ||
| { | ||
| h1=${NETIFS[p1]} | ||
| swp1=${NETIFS[p2]} | ||
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| rp1=${NETIFS[p3]} | ||
| rp2=${NETIFS[p4]} | ||
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| forwarding_enable | ||
| vrf_prepare | ||
| h1_create | ||
| switch_create | ||
| vrf2_create | ||
| } | ||
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| cleanup() | ||
| { | ||
| pre_cleanup | ||
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| vrf2_destroy | ||
| switch_destroy | ||
| h1_destroy | ||
| vrf_cleanup | ||
| forwarding_restore | ||
| } | ||
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| ipip_payload_get() | ||
| { | ||
| local saddr="20:01:0d:b8:00:02:00:00:00:00:00:00:00:00:00:01" | ||
| local daddr="20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:01" | ||
| local flags=$1; shift | ||
| local key=$1; shift | ||
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| p=$(: | ||
| )"$flags"$( : GRE flags | ||
| )"0:00:"$( : Reserved + version | ||
| )"86:dd:"$( : ETH protocol type | ||
| )"$key"$( : Key | ||
| )"6"$( : IP version | ||
| )"0:0"$( : Traffic class | ||
| )"0:00:00:"$( : Flow label | ||
| )"00:00:"$( : Payload length | ||
| )"3a:"$( : Next header | ||
| )"04:"$( : Hop limit | ||
| )"$saddr:"$( : IP saddr | ||
| )"$daddr:"$( : IP daddr | ||
| ) | ||
| echo $p | ||
| } | ||
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| ecn_payload_get() | ||
| { | ||
| echo $(ipip_payload_get "0") | ||
| } | ||
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| ecn_decap_test() | ||
| { | ||
| local trap_name="decap_error" | ||
| local desc=$1; shift | ||
| local ecn_desc=$1; shift | ||
| local outer_tos=$1; shift | ||
| local mz_pid | ||
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| RET=0 | ||
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| tc filter add dev $swp1 egress protocol ipv6 pref 1 handle 101 \ | ||
| flower src_ip 2001:db8:2::1 dst_ip 2001:db8:1::1 skip_sw \ | ||
| action pass | ||
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| rp1_mac=$(mac_get $rp1) | ||
| rp2_mac=$(mac_get $rp2) | ||
| payload=$(ecn_payload_get) | ||
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| ip vrf exec v$rp2 $MZ -6 $rp2 -c 0 -d 1msec -a $rp2_mac -b $rp1_mac \ | ||
| -A 2001:db8:3::2 -B 2001:db8:3::1 -t ip \ | ||
| tos=$outer_tos,next=47,p=$payload -q & | ||
| mz_pid=$! | ||
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| devlink_trap_exception_test $trap_name | ||
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| tc_check_packets "dev $swp1 egress" 101 0 | ||
| check_err $? "Packets were not dropped" | ||
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| log_test "$desc: Inner ECN is not ECT and outer is $ecn_desc" | ||
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| kill $mz_pid && wait $mz_pid &> /dev/null | ||
| tc filter del dev $swp1 egress protocol ipv6 pref 1 handle 101 flower | ||
| } | ||
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| no_matching_tunnel_test() | ||
| { | ||
| local trap_name="decap_error" | ||
| local desc=$1; shift | ||
| local sip=$1; shift | ||
| local mz_pid | ||
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| RET=0 | ||
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| tc filter add dev $swp1 egress protocol ipv6 pref 1 handle 101 \ | ||
| flower src_ip 2001:db8:2::1 dst_ip 2001:db8:1::1 action pass | ||
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| rp1_mac=$(mac_get $rp1) | ||
| rp2_mac=$(mac_get $rp2) | ||
| payload=$(ipip_payload_get "$@") | ||
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| ip vrf exec v$rp2 $MZ -6 $rp2 -c 0 -d 1msec -a $rp2_mac -b $rp1_mac \ | ||
| -A $sip -B 2001:db8:3::1 -t ip next=47,p=$payload -q & | ||
| mz_pid=$! | ||
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| devlink_trap_exception_test $trap_name | ||
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| tc_check_packets "dev $swp1 egress" 101 0 | ||
| check_err $? "Packets were not dropped" | ||
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| log_test "$desc" | ||
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| kill $mz_pid && wait $mz_pid &> /dev/null | ||
| tc filter del dev $swp1 egress protocol ipv6 pref 1 handle 101 flower | ||
| } | ||
|
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| decap_error_test() | ||
| { | ||
| # Correct source IP - the remote address | ||
| local sip=2001:db8:3::2 | ||
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| ecn_decap_test "Decap error" "ECT(1)" 01 | ||
| ecn_decap_test "Decap error" "ECT(0)" 02 | ||
| ecn_decap_test "Decap error" "CE" 03 | ||
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| no_matching_tunnel_test "Decap error: Source IP check failed" \ | ||
| 2001:db8:4::2 "0" | ||
| no_matching_tunnel_test \ | ||
| "Decap error: Key exists but was not expected" $sip "2" \ | ||
| "00:00:00:E9:" | ||
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| # Destroy the tunnel and create new one with key | ||
| __addr_add_del g1 del 2001:db8:3::1/128 | ||
| tunnel_destroy g1 | ||
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| tunnel_create g1 ip6gre 2001:db8:3::1 2001:db8:3::2 tos inherit \ | ||
| ttl inherit key 233 | ||
| __addr_add_del g1 add 2001:db8:3::1/128 | ||
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| no_matching_tunnel_test \ | ||
| "Decap error: Key does not exist but was expected" $sip "0" | ||
| no_matching_tunnel_test \ | ||
| "Decap error: Packet has a wrong key field" $sip "2" \ | ||
| "00:00:00:E8:" | ||
| } | ||
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| trap cleanup EXIT | ||
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| setup_prepare | ||
| setup_wait | ||
| tests_run | ||
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| exit $EXIT_STATUS |
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