tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
selftests: forwarding: Add IPv6 GRE hierarchical tests
Add tests that check IPv6-in-IPv6, IPv4-in-IPv6 and MTU change of GRE
tunnel. The tests use hierarchical model - the tunnel is bound to a device
in a different 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>
authored by
Amit Cohen
and committed by
David S. Miller
4b3d967b
7df29960
+364
-1
+65
tools/testing/selftests/net/forwarding/ip6gre_hier.sh
+65
tools/testing/selftests/net/forwarding/ip6gre_hier.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 tunnels without key.
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# This test uses hierarchical topology for IP tunneling tests. See
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# ip6gre_lib.sh for more details.
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ALL_TESTS="
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gre_hier
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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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+
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ol2=${NETIFS[p5]}
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h2=${NETIFS[p6]}
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+
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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_hierarchical_create $ol1 $ul1
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sw2_hierarchical_create $ol2 $ul2
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}
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gre_hier()
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{
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test_traffic_ip4ip6 "GRE hierarchical IPv4-in-IPv6"
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test_traffic_ip6ip6 "GRE hierarchical 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 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_hierarchical_destroy $ol2 $ul2
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sw1_hierarchical_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 $EXIT_STATUS
+65
tools/testing/selftests/net/forwarding/ip6gre_hier_key.sh
+65
tools/testing/selftests/net/forwarding/ip6gre_hier_key.sh
···
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Test IP-in-IP GRE tunnels without key.
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# This test uses hierarchical topology for IP tunneling tests. See
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# ip6gre_lib.sh for more details.
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ALL_TESTS="
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gre_hier
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gre_mtu_change
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"
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NUM_NETIFS=6
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source lib.sh
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source ip6gre_lib.sh
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setup_prepare()
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{
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h1=${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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+
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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_hierarchical_create $ol1 $ul1 key 22
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sw2_hierarchical_create $ol2 $ul2 key 22
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}
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gre_hier()
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{
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test_traffic_ip4ip6 "GRE hierarchical IPv4-in-IPv6 with key"
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test_traffic_ip6ip6 "GRE hierarchical 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 gre
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}
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cleanup()
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{
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pre_cleanup
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+
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sw2_hierarchical_destroy $ol2 $ul2
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sw1_hierarchical_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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+
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trap cleanup EXIT
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+
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setup_prepare
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setup_wait
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tests_run
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+
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exit $EXIT_STATUS
+65
tools/testing/selftests/net/forwarding/ip6gre_hier_keys.sh
+65
tools/testing/selftests/net/forwarding/ip6gre_hier_keys.sh
···
1
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#!/bin/bash
2
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# SPDX-License-Identifier: GPL-2.0
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4
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# Test IP-in-IP GRE tunnels without key.
5
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# This test uses hierarchical topology for IP tunneling tests. See
6
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# ip6gre_lib.sh for more details.
7
+
8
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ALL_TESTS="
9
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gre_hier
10
+
gre_mtu_change
11
+
"
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+
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NUM_NETIFS=6
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source lib.sh
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source ip6gre_lib.sh
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+
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setup_prepare()
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{
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h1=${NETIFS[p1]}
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ol1=${NETIFS[p2]}
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+
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ul1=${NETIFS[p3]}
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ul2=${NETIFS[p4]}
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+
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ol2=${NETIFS[p5]}
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h2=${NETIFS[p6]}
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+
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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_hierarchical_create $ol1 $ul1 ikey 111 okey 222
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sw2_hierarchical_create $ol2 $ul2 ikey 222 okey 111
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}
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gre_hier()
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{
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test_traffic_ip4ip6 "GRE hierarchical IPv4-in-IPv6 with ikey/okey"
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test_traffic_ip6ip6 "GRE hierarchical 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_hierarchical_destroy $ol2 $ul2
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sw1_hierarchical_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
+169
-1
tools/testing/selftests/net/forwarding/ip6gre_lib.sh
+169
-1
tools/testing/selftests/net/forwarding/ip6gre_lib.sh
···
2
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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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# topology. Supports both flat and hierarchical models.
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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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# | $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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#
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# Hierarchical model:
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# The tunnel is bound to a device in a different VRF
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#
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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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# | +-----------------------|-----------------+ |
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# | | $ol1 + | |
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# | | 198.51.100.2/24 | |
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# | | 2001:db8:1::2/64 | |
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# | | | |
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# | | + g1a (ip6gre) | |
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# | | loc=2001:db8:3::1 | |
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# | | rem=2001:db8:3::2 | |
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# | | tos=inherit | |
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# | | ^ | |
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# | | VRF v$ol1 | | |
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# | +--------------------|--------------------+ |
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# | | |
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# | +--------------------|--------------------+ |
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# | | VRF v$ul1 | | |
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# | | | | |
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# | | v | |
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# | | dummy1 + | |
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# | | 2001:db8:3::1/64 | |
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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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# | | + $ul1 | |
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# | +---------------------|-------------------+ |
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# +-----------------------|---------------------+
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# |
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# +-----------------------|---------------------+
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# | SW2 | |
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# | +---------------------|-------------------+ |
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# | | + $ul2 | |
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# | | _____| | |
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# | | / | |
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# | | / | |
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# | | | $ul2.111 (vlan) | |
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# | | + 2001:db8:10::2/64 | |
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# | | ^ | |
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# | | | | |
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# | | '------. | |
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# | | dummy2 + | |
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# | | 2001:db8:3::2/64 | |
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# | | ^ | |
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# | | | | |
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# | | | | |
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# | | VRF v$ul2 | | |
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# | +---------------------|-------------------+ |
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# | | |
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# | +---------------------|-------------------+ |
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# | | VRF v$ol2 | | |
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# | | | | |
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# | | v | |
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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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# | | 2001:db8:2::2/64 | | |
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# | +---------------------|-------------------+ |
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# +-----------------------|---------------------+
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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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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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+
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sw1_hierarchical_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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+
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simple_if_init $ol1 198.51.100.2/24 2001:db8:1::2/64
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simple_if_init $ul1
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ip link add name dummy1 type dummy
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__simple_if_init dummy1 v$ul1 2001:db8:3::1/64
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vlan_create $ul1 111 v$ul1 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 dev dummy1 "$@"
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ip link set dev g1a master v$ol1
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ip -6 route add vrf v$ul1 2001:db8:3::2/128 via 2001:db8:10::2
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ip route add vrf v$ol1 203.0.113.0/24 dev g1a
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ip -6 route add vrf v$ol1 2001:db8:2::/64 dev g1a
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}
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sw1_hierarchical_destroy()
196
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{
197
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local ol1=$1; shift
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local ul1=$1; shift
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200
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ip -6 route del vrf v$ol1 2001:db8:2::/64
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ip route del vrf v$ol1 203.0.113.0/24
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ip -6 route del vrf v$ul1 2001:db8:3::2/128
203
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204
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tunnel_destroy g1a
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vlan_destroy $ul1 111
206
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207
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__simple_if_fini dummy1 2001:db8:3::1/64
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ip link del dev dummy1
209
+
210
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simple_if_fini $ul1
211
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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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+
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sw2_hierarchical_create()
215
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{
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local ol2=$1; shift
217
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local ul2=$1; shift
218
+
219
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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 $ul2
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ip link add name dummy2 type dummy
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__simple_if_init dummy2 v$ul2 2001:db8:3::2/64
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vlan_create $ul2 111 v$ul2 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 dummy2 "$@"
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ip link set dev g2a master v$ol2
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+
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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 $h2)
233
+
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ip -6 route add vrf v$ul2 2001:db8:3::1/128 via 2001:db8:10::1
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ip route add vrf v$ol2 198.51.100.0/24 dev g2a
236
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ip -6 route add vrf v$ol2 2001:db8:1::/64 dev g2a
237
+
}
238
+
239
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sw2_hierarchical_destroy()
240
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{
241
+
local ol2=$1; shift
242
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local ul2=$1; shift
243
+
244
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ip -6 route del vrf v$ol2 2001:db8:2::/64
245
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ip route del vrf v$ol2 198.51.100.0/24
246
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ip -6 route del vrf v$ul2 2001:db8:3::1/128
247
+
248
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tunnel_destroy g2a
249
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vlan_destroy $ul2 111
250
+
251
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__simple_if_fini dummy2 2001:db8:3::2/64
252
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ip link del dev dummy2
253
+
254
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simple_if_fini $ul2
257
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simple_if_fini $ol2 203.0.113.2/24 2001:db8:2::2/64
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256
}
259
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