kernel/linux.git/tools/testing/selftests/net/forwarding, branch v5.15.3

selftests: net: bridge: update IGMP/MLD membership interval value

2021-11-18T18:16:44+00:00

[ Upstream commit 34d7ecb3d4f772eb00ce1f7195ae30886ddf4d2e ] When I fixed IGMPv3/MLDv2 to use the bridge's multicast_membership_interval value which is chosen by user-space instead of calculating it based on multicast_query_interval and multicast_query_response_interval I forgot to update the selftests relying on that behaviour. Now we have to manually set the expected GMI value to perform the tests correctly and get proper results (similar to IGMPv2 behaviour). Fixes: fac3cb82a54a ("net: bridge: mcast: use multicast_membership_interval for IGMPv3") Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller Signed-off-by: Sasha Levin

ipv6: When forwarding count rx stats on the orig netdev

2021-10-15T22:32:04+00:00

Commit bdb7cc643fc9 ("ipv6: Count interface receive statistics on the ingress netdev") does not work when ip6_forward() executes on the skbs with vrf-enslaved netdev. Use IP6CB(skb)->iif to get to the right one. Add a selftest script to verify. Fixes: bdb7cc643fc9 ("ipv6: Count interface receive statistics on the ingress netdev") Signed-off-by: Stephen Suryaputra Reviewed-by: David Ahern Link: https://lore.kernel.org/r/20211014130845.410602-1-ssuryaextr@gmail.com Signed-off-by: Jakub Kicinski

selftests/net: Use kselftest skip code for skipped tests

2021-08-24T23:49:09+00:00

There are several test cases in the net directory are still using exit 0 or exit 1 when they need to be skipped. Use kselftest framework skip code instead so it can help us to distinguish the return status. Criterion to filter out what should be fixed in net directory: grep -r "exit [01]" -B1 | grep -i skip This change might cause some false-positives if people are running these test scripts directly and only checking their return codes, which will change from 0 to 4. However I think the impact should be small as most of our scripts here are already using this skip code. And there will be no such issue if running them with the kselftest framework. Signed-off-by: Po-Hsu Lin Reviewed-by: Ido Schimmel Tested-by: Ido Schimmel Link: https://lore.kernel.org/r/20210823085854.40216-1-po-hsu.lin@canonical.com Signed-off-by: Jakub Kicinski

testing: selftests: net: forwarding: add devlink-required functionality to test (hard) dropped stats field

2021-06-14T20:04:25+00:00

Add devlink_trap_drop_packets_get function, as well as test that are used to verify devlink (hard) dropped stats functionality works. Signed-off-by: Oleksandr Mazur Signed-off-by: David S. Miller

selftests: devlink_lib: Fix bouncing of netdevsim DEVLINK_DEV

2021-06-08T21:39:07+00:00

In the commit referenced below, a check was added to devlink_lib that asserts the existence of a devlink device referenced by $DEVLINK_DEV. Unfortunately, several netdevsim tests point DEVLINK_DEV at a device that does not exist at the time that devlink_lib is sourced. Thus these tests spuriously fail. Fix this by introducing an override. By setting DEVLINK_DEV to an empty string, the user declares their intention to handle DEVLINK_DEV management on their own. In all netdevsim tests that use devlink_lib and set DEVLINK_DEV, set instead an empty DEVLINK_DEV just before sourcing devlink_lib, and set it to the correct value right afterwards. Fixes: 557c4d2f780c ("selftests: devlink_lib: add check for devlink device existence") Signed-off-by: Petr Machata Signed-off-by: Ido Schimmel Signed-off-by: David S. Miller

selftests: Clean forgotten resources as part of cleanup()

2021-06-08T21:39:07+00:00

Several tests do not set some ports down as part of their cleanup(), resulting in IPv6 link-local addresses and associated routes not being deleted. These leaks were found using a BPF tool that monitors ASIC resources. Solve this by setting the ports down at the end of the tests. Signed-off-by: Amit Cohen Reviewed-by: Petr Machata Signed-off-by: Ido Schimmel Signed-off-by: David S. Miller

selftests: devlink_lib: add check for devlink device existence

2021-05-27T21:49:07+00:00

If user passes devlink handle over DEVLINK_DEV variable, check if the device exists. Signed-off-by: Jiri Pirko Link: https://lore.kernel.org/r/20210527105515.790330-1-jiri@resnulli.us Signed-off-by: Jakub Kicinski

selftests: forwarding: Add test for custom multipath hash with IPv6 GRE

2021-05-18T20:27:32+00:00

Test that when the hash policy is set to custom, traffic is distributed only according to the inner fields set in the fib_multipath_hash_fields sysctl. Each time set a different field and make sure traffic is only distributed when the field is changed in the packet stream. The test only verifies the behavior of IPv4/IPv6 overlays on top of an IPv6 underlay network. The previous patch verified the same with an IPv4 underlay network. Example output: # ./ip6gre_custom_multipath_hash.sh TEST: ping [ OK ] TEST: ping6 [ OK ] INFO: Running IPv4 overlay custom multipath hash tests TEST: Multipath hash field: Inner source IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 6602 / 6002 TEST: Multipath hash field: Inner source IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 1 / 12601 TEST: Multipath hash field: Inner destination IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 6802 / 5801 TEST: Multipath hash field: Inner destination IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 12602 / 3 TEST: Multipath hash field: Inner source port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16431 / 16344 TEST: Multipath hash field: Inner source port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 0 / 32773 TEST: Multipath hash field: Inner destination port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16431 / 16344 TEST: Multipath hash field: Inner destination port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 2 / 32772 INFO: Running IPv6 overlay custom multipath hash tests TEST: Multipath hash field: Inner source IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 6704 / 5902 TEST: Multipath hash field: Inner source IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 1 / 12600 TEST: Multipath hash field: Inner destination IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 5751 / 6852 TEST: Multipath hash field: Inner destination IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 12602 / 0 TEST: Multipath hash field: Inner flowlabel (balanced) [ OK ] INFO: Packets sent on path1 / path2: 8272 / 8181 TEST: Multipath hash field: Inner flowlabel (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 3 / 12602 TEST: Multipath hash field: Inner source port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16424 / 16351 TEST: Multipath hash field: Inner source port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 3 / 32774 TEST: Multipath hash field: Inner destination port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16425 / 16350 TEST: Multipath hash field: Inner destination port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 2 / 32773 Signed-off-by: Ido Schimmel Acked-by: David Ahern Signed-off-by: David S. Miller

selftests: forwarding: Add test for custom multipath hash with IPv4 GRE

2021-05-18T20:27:32+00:00

Test that when the hash policy is set to custom, traffic is distributed only according to the inner fields set in the fib_multipath_hash_fields sysctl. Each time set a different field and make sure traffic is only distributed when the field is changed in the packet stream. The test only verifies the behavior of IPv4/IPv6 overlays on top of an IPv4 underlay network. A subsequent patch will do the same with an IPv6 underlay network. Example output: # ./gre_custom_multipath_hash.sh TEST: ping [ OK ] TEST: ping6 [ OK ] INFO: Running IPv4 overlay custom multipath hash tests TEST: Multipath hash field: Inner source IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 6601 / 6001 TEST: Multipath hash field: Inner source IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 0 / 12600 TEST: Multipath hash field: Inner destination IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 6802 / 5802 TEST: Multipath hash field: Inner destination IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 12601 / 1 TEST: Multipath hash field: Inner source port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16430 / 16344 TEST: Multipath hash field: Inner source port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 0 / 32772 TEST: Multipath hash field: Inner destination port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16430 / 16343 TEST: Multipath hash field: Inner destination port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 0 / 32772 INFO: Running IPv6 overlay custom multipath hash tests TEST: Multipath hash field: Inner source IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 6702 / 5900 TEST: Multipath hash field: Inner source IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 0 / 12601 TEST: Multipath hash field: Inner destination IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 5751 / 6851 TEST: Multipath hash field: Inner destination IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 12602 / 1 TEST: Multipath hash field: Inner flowlabel (balanced) [ OK ] INFO: Packets sent on path1 / path2: 8364 / 8065 TEST: Multipath hash field: Inner flowlabel (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 12601 / 0 TEST: Multipath hash field: Inner source port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16425 / 16349 TEST: Multipath hash field: Inner source port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 1 / 32770 TEST: Multipath hash field: Inner destination port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16425 / 16349 TEST: Multipath hash field: Inner destination port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 2 / 32770 Signed-off-by: Ido Schimmel Acked-by: David Ahern Signed-off-by: David S. Miller

selftests: forwarding: Add test for custom multipath hash

2021-05-18T20:27:32+00:00

Test that when the hash policy is set to custom, traffic is distributed only according to the outer fields set in the fib_multipath_hash_fields sysctl. Each time set a different field and make sure traffic is only distributed when the field is changed in the packet stream. The test only verifies the behavior with non-encapsulated IPv4 and IPv6 packets. Subsequent patches will add tests for IPv4/IPv6 overlays on top of IPv4/IPv6 underlay networks. Example output: # ./custom_multipath_hash.sh TEST: ping [ OK ] TEST: ping6 [ OK ] INFO: Running IPv4 custom multipath hash tests TEST: Multipath hash field: Source IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 6353 / 6254 TEST: Multipath hash field: Source IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 0 / 12600 TEST: Multipath hash field: Destination IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 6102 / 6502 TEST: Multipath hash field: Destination IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 1 / 12601 TEST: Multipath hash field: Source port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16428 / 16345 TEST: Multipath hash field: Source port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 32770 / 2 TEST: Multipath hash field: Destination port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16428 / 16345 TEST: Multipath hash field: Destination port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 32770 / 2 INFO: Running IPv6 custom multipath hash tests TEST: Multipath hash field: Source IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 6704 / 5903 TEST: Multipath hash field: Source IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 12600 / 0 TEST: Multipath hash field: Destination IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 5551 / 7052 TEST: Multipath hash field: Destination IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 12603 / 0 TEST: Multipath hash field: Flowlabel (balanced) [ OK ] INFO: Packets sent on path1 / path2: 8378 / 8080 TEST: Multipath hash field: Flowlabel (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 2 / 12603 TEST: Multipath hash field: Source port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16385 / 16388 TEST: Multipath hash field: Source port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 0 / 32774 TEST: Multipath hash field: Destination port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16386 / 16390 TEST: Multipath hash field: Destination port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 32771 / 2 Signed-off-by: Ido Schimmel Reviewed-by: David Ahern Signed-off-by: David S. Miller