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selftests: forwarding: Add IPv6 GRE flat tests
Add tests that check IPv6-in-IPv6, IPv4-in-IPv6 and MTU change of GRE tunnel. The tests use flat model - overlay and underlay share the same VRF. These tests can be run with TC_FLAG=skip_sw, so then they will verify that packets go through hardware as part of enacp and decap phases. Signed-off-by: Amit Cohen <amcohen@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Amit Cohen
David S. Miller
parent
c08d227290
commit
7df29960fa
4 changed files with 465 additions and 0 deletions
65
tools/testing/selftests/net/forwarding/ip6gre_flat.sh
Executable file
65
tools/testing/selftests/net/forwarding/ip6gre_flat.sh
Executable file
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@ -0,0 +1,65 @@
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Test IP-in-IP GRE tunnel without key.
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# This test uses flat topology for IP tunneling tests. See ip6gre_lib.sh for
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# more details.
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ALL_TESTS="
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gre_flat
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gre_mtu_change
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"
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NUM_NETIFS=6
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source lib.sh
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source ip6gre_lib.sh
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setup_prepare()
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{
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h1=${NETIFS[p1]}
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ol1=${NETIFS[p2]}
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ul1=${NETIFS[p3]}
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ul2=${NETIFS[p4]}
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ol2=${NETIFS[p5]}
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h2=${NETIFS[p6]}
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forwarding_enable
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vrf_prepare
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h1_create
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h2_create
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sw1_flat_create $ol1 $ul1
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sw2_flat_create $ol2 $ul2
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}
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gre_flat()
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{
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test_traffic_ip4ip6 "GRE flat IPv4-in-IPv6"
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test_traffic_ip6ip6 "GRE flat IPv6-in-IPv6"
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}
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gre_mtu_change()
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{
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test_mtu_change
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}
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cleanup()
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{
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pre_cleanup
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sw2_flat_destroy $ol2 $ul2
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sw1_flat_destroy $ol1 $ul1
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h2_destroy
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h1_destroy
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vrf_cleanup
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forwarding_restore
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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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exit $EXIT_STATUS
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65
tools/testing/selftests/net/forwarding/ip6gre_flat_key.sh
Executable file
65
tools/testing/selftests/net/forwarding/ip6gre_flat_key.sh
Executable file
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@ -0,0 +1,65 @@
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Test IP-in-IP GRE tunnel with key.
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# This test uses flat topology for IP tunneling tests. See ip6gre_lib.sh for
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# more details.
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ALL_TESTS="
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gre_flat
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gre_mtu_change
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"
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NUM_NETIFS=6
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source lib.sh
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source ip6gre_lib.sh
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setup_prepare()
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{
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h1=${NETIFS[p1]}
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ol1=${NETIFS[p2]}
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ul1=${NETIFS[p3]}
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ul2=${NETIFS[p4]}
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ol2=${NETIFS[p5]}
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h2=${NETIFS[p6]}
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forwarding_enable
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vrf_prepare
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h1_create
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h2_create
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sw1_flat_create $ol1 $ul1 key 233
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sw2_flat_create $ol2 $ul2 key 233
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}
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gre_flat()
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{
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test_traffic_ip4ip6 "GRE flat IPv4-in-IPv6 with key"
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test_traffic_ip6ip6 "GRE flat IPv6-in-IPv6 with key"
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}
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gre_mtu_change()
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{
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test_mtu_change
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}
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cleanup()
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{
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pre_cleanup
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sw2_flat_destroy $ol2 $ul2
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sw1_flat_destroy $ol1 $ul1
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h2_destroy
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h1_destroy
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vrf_cleanup
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forwarding_restore
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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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exit $EXIT_STATUS
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65
tools/testing/selftests/net/forwarding/ip6gre_flat_keys.sh
Executable file
65
tools/testing/selftests/net/forwarding/ip6gre_flat_keys.sh
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Test IP-in-IP GRE tunnel with keys.
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# This test uses flat topology for IP tunneling tests. See ip6gre_lib.sh for
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# more details.
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ALL_TESTS="
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gre_flat
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gre_mtu_change
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"
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NUM_NETIFS=6
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source lib.sh
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source ip6gre_lib.sh
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setup_prepare()
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{
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h1=${NETIFS[p1]}
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ol1=${NETIFS[p2]}
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ul1=${NETIFS[p3]}
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ul2=${NETIFS[p4]}
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ol2=${NETIFS[p5]}
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h2=${NETIFS[p6]}
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forwarding_enable
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vrf_prepare
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h1_create
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h2_create
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sw1_flat_create $ol1 $ul1 ikey 111 okey 222
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sw2_flat_create $ol2 $ul2 ikey 222 okey 111
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}
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gre_flat()
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{
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test_traffic_ip4ip6 "GRE flat IPv4-in-IPv6 with ikey/okey"
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test_traffic_ip6ip6 "GRE flat IPv6-in-IPv6 with ikey/okey"
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}
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gre_mtu_change()
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{
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test_mtu_change gre
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}
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cleanup()
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{
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pre_cleanup
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sw2_flat_destroy $ol2 $ul2
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sw1_flat_destroy $ol1 $ul1
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h2_destroy
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h1_destroy
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vrf_cleanup
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forwarding_restore
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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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exit $EXIT_STATUS
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270
tools/testing/selftests/net/forwarding/ip6gre_lib.sh
Normal file
270
tools/testing/selftests/net/forwarding/ip6gre_lib.sh
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@ -0,0 +1,270 @@
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# SPDX-License-Identifier: GPL-2.0
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#!/bin/bash
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# Handles creation and destruction of IP-in-IP or GRE tunnels over the given
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# topology.
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#
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# Flat Model:
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# Overlay and underlay share the same VRF.
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# SW1 uses default VRF so tunnel has no bound dev.
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# SW2 uses non-default VRF tunnel has a bound dev.
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# +--------------------------------+
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# | H1 |
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# | $h1 + |
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# | 198.51.100.1/24 | |
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# | 2001:db8:1::1/64 | |
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# +-------------------------|------+
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# |
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# +-------------------------|-------------------+
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# | SW1 | |
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# | $ol1 + |
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# | 198.51.100.2/24 |
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# | 2001:db8:1::2/64 |
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# | |
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# | + g1a (ip6gre) |
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# | loc=2001:db8:3::1 |
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# | rem=2001:db8:3::2 --. |
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# | tos=inherit | |
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# | . |
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# | .--------------------- |
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# | | |
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# | v |
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# | + $ul1.111 (vlan) |
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# | | 2001:db8:10::1/64 |
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# | \ |
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# | \____________ |
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# | | |
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# | VRF default + $ul1 |
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# +---------------------|-----------------------+
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# |
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# +---------------------|-----------------------+
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# | SW2 | |
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# | $ul2 + |
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# | ___________| |
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# | / |
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# | / |
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# | + $ul2.111 (vlan) |
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# | ^ 2001:db8:10::2/64 |
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# | | |
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# | | |
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# | '----------------------. |
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# | + g2a (ip6gre) | |
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# | loc=2001:db8:3::2 | |
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# | rem=2001:db8:3::1 --' |
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# | tos=inherit |
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# | |
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# | + $ol2 |
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# | | 203.0.113.2/24 |
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# | VRF v$ol2 | 2001:db8:2::2/64 |
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# +---------------------|-----------------------+
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# +---------------------|----------+
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# | H2 | |
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# | $h2 + |
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# | 203.0.113.1/24 |
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# | 2001:db8:2::1/64 |
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# +--------------------------------+
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source lib.sh
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source tc_common.sh
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h1_create()
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{
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simple_if_init $h1 198.51.100.1/24 2001:db8:1::1/64
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ip route add vrf v$h1 203.0.113.0/24 via 198.51.100.2
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ip -6 route add vrf v$h1 2001:db8:2::/64 via 2001:db8:1::2
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}
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h1_destroy()
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{
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ip -6 route del vrf v$h1 2001:db8:2::/64 via 2001:db8:1::2
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ip route del vrf v$h1 203.0.113.0/24 via 198.51.100.2
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simple_if_fini $h1 198.51.100.1/24 2001:db8:1::1/64
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}
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h2_create()
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{
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simple_if_init $h2 203.0.113.1/24 2001:db8:2::1/64
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ip route add vrf v$h2 198.51.100.0/24 via 203.0.113.2
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ip -6 route add vrf v$h2 2001:db8:1::/64 via 2001:db8:2::2
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}
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h2_destroy()
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{
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ip -6 route del vrf v$h2 2001:db8:1::/64 via 2001:db8:2::2
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ip route del vrf v$h2 198.51.100.0/24 via 203.0.113.2
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simple_if_fini $h2 203.0.113.1/24 2001:db8:2::1/64
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}
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sw1_flat_create()
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{
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local ol1=$1; shift
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local ul1=$1; shift
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ip link set dev $ol1 up
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__addr_add_del $ol1 add 198.51.100.2/24 2001:db8:1::2/64
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ip link set dev $ul1 up
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vlan_create $ul1 111 "" 2001:db8:10::1/64
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tunnel_create g1a ip6gre 2001:db8:3::1 2001:db8:3::2 tos inherit \
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ttl inherit "$@"
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ip link set dev g1a up
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__addr_add_del g1a add "2001:db8:3::1/128"
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ip -6 route add 2001:db8:3::2/128 via 2001:db8:10::2
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ip route add 203.0.113.0/24 dev g1a
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ip -6 route add 2001:db8:2::/64 dev g1a
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}
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sw1_flat_destroy()
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{
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local ol1=$1; shift
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local ul1=$1; shift
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ip -6 route del 2001:db8:2::/64
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ip route del 203.0.113.0/24
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ip -6 route del 2001:db8:3::2/128 via 2001:db8:10::2
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__simple_if_fini g1a 2001:db8:3::1/128
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tunnel_destroy g1a
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vlan_destroy $ul1 111
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__simple_if_fini $ul1
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__simple_if_fini $ol1 198.51.100.2/24 2001:db8:1::2/64
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}
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sw2_flat_create()
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{
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local ol2=$1; shift
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local ul2=$1; shift
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simple_if_init $ol2 203.0.113.2/24 2001:db8:2::2/64
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__simple_if_init $ul2 v$ol2
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vlan_create $ul2 111 v$ol2 2001:db8:10::2/64
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tunnel_create g2a ip6gre 2001:db8:3::2 2001:db8:3::1 tos inherit \
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ttl inherit dev v$ol2 "$@"
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__simple_if_init g2a v$ol2 2001:db8:3::2/128
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# Replace neighbor to avoid 1 dropped packet due to "unresolved neigh"
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ip neigh replace dev $ol2 203.0.113.1 lladdr $(mac_get $h2)
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ip -6 neigh replace dev $ol2 2001:db8:2::1 lladdr $(mac_get $h2)
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ip -6 route add vrf v$ol2 2001:db8:3::1/128 via 2001:db8:10::1
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ip route add vrf v$ol2 198.51.100.0/24 dev g2a
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ip -6 route add vrf v$ol2 2001:db8:1::/64 dev g2a
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}
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sw2_flat_destroy()
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{
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local ol2=$1; shift
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local ul2=$1; shift
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ip -6 route del vrf v$ol2 2001:db8:2::/64
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ip route del vrf v$ol2 198.51.100.0/24
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ip -6 route del vrf v$ol2 2001:db8:3::1/128 via 2001:db8:10::1
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__simple_if_fini g2a 2001:db8:3::2/128
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tunnel_destroy g2a
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vlan_destroy $ul2 111
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__simple_if_fini $ul2
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simple_if_fini $ol2 203.0.113.2/24 2001:db8:2::2/64
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}
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test_traffic_ip4ip6()
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{
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RET=0
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h1mac=$(mac_get $h1)
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ol1mac=$(mac_get $ol1)
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tc qdisc add dev $ul1 clsact
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tc filter add dev $ul1 egress proto all pref 1 handle 101 \
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flower $TC_FLAG action pass
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tc qdisc add dev $ol2 clsact
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tc filter add dev $ol2 egress protocol ipv4 pref 1 handle 101 \
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flower $TC_FLAG dst_ip 203.0.113.1 action pass
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$MZ $h1 -c 1000 -p 64 -a $h1mac -b $ol1mac -A 198.51.100.1 \
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-B 203.0.113.1 -t ip -q -d 1msec
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# Check ports after encap and after decap.
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tc_check_at_least_x_packets "dev $ul1 egress" 101 1000
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check_err $? "Packets did not go through $ul1, tc_flag = $TC_FLAG"
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tc_check_at_least_x_packets "dev $ol2 egress" 101 1000
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check_err $? "Packets did not go through $ol2, tc_flag = $TC_FLAG"
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log_test "$@"
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tc filter del dev $ol2 egress protocol ipv4 pref 1 handle 101 flower
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tc qdisc del dev $ol2 clsact
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tc filter del dev $ul1 egress proto all pref 1 handle 101 flower
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tc qdisc del dev $ul1 clsact
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}
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test_traffic_ip6ip6()
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{
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RET=0
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h1mac=$(mac_get $h1)
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ol1mac=$(mac_get $ol1)
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tc qdisc add dev $ul1 clsact
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tc filter add dev $ul1 egress proto all pref 1 handle 101 \
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flower $TC_FLAG action pass
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tc qdisc add dev $ol2 clsact
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tc filter add dev $ol2 egress protocol ipv6 pref 1 handle 101 \
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flower $TC_FLAG dst_ip 2001:db8:2::1 action pass
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$MZ -6 $h1 -c 1000 -p 64 -a $h1mac -b $ol1mac -A 2001:db8:1::1 \
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-B 2001:db8:2::1 -t ip -q -d 1msec
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# Check ports after encap and after decap.
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tc_check_at_least_x_packets "dev $ul1 egress" 101 1000
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check_err $? "Packets did not go through $ul1, tc_flag = $TC_FLAG"
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tc_check_at_least_x_packets "dev $ol2 egress" 101 1000
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check_err $? "Packets did not go through $ol2, tc_flag = $TC_FLAG"
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log_test "$@"
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tc filter del dev $ol2 egress protocol ipv6 pref 1 handle 101 flower
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tc qdisc del dev $ol2 clsact
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tc filter del dev $ul1 egress proto all pref 1 handle 101 flower
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tc qdisc del dev $ul1 clsact
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}
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topo_mtu_change()
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{
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local mtu=$1
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ip link set mtu $mtu dev $h1
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ip link set mtu $mtu dev $ol1
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ip link set mtu $mtu dev g1a
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ip link set mtu $mtu dev $ul1
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ip link set mtu $mtu dev $ul1.111
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ip link set mtu $mtu dev $h2
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ip link set mtu $mtu dev $ol2
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ip link set mtu $mtu dev g2a
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ip link set mtu $mtu dev $ul2
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ip link set mtu $mtu dev $ul2.111
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}
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test_mtu_change()
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{
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RET=0
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ping6_do $h1 2001:db8:2::1 "-s 1800 -w 3"
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check_fail $? "ping GRE IPv6 should not pass with packet size 1800"
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RET=0
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topo_mtu_change 2000
|
||||
ping6_do $h1 2001:db8:2::1 "-s 1800 -w 3"
|
||||
check_err $?
|
||||
log_test "ping GRE IPv6, packet size 1800 after MTU change"
|
||||
}
|
||||
Loading…
Reference in a new issue