linux.git/tools, branch v6.6.16

selftests/bpf: Remove flaky test_btf_id test

2024-02-05T20:14:38+00:00

commit 56925f389e152dcb8d093435d43b78a310539c23 upstream.

With previous patch, one of subtests in test_btf_id becomes
flaky and may fail. The following is a failing example:

  Error: #26 btf
  Error: #26/174 btf/BTF ID
    Error: #26/174 btf/BTF ID
    btf_raw_create:PASS:check 0 nsec
    btf_raw_create:PASS:check 0 nsec
    test_btf_id:PASS:check 0 nsec
    ...
    test_btf_id:PASS:check 0 nsec
    test_btf_id:FAIL:check BTF lingersdo_test_get_info:FAIL:check failed: -1

The test tries to prove a btf_id not available after the map is closed.
But btf_id is freed only after workqueue and a rcu grace period, compared
to previous case just after a rcu grade period.
Depending on system workload, workqueue could take quite some time
to execute function bpf_map_free_deferred() which may cause the test failure.
Instead of adding arbitrary delays, let us remove the logic to
check btf_id availability after map is closed.

Signed-off-by: Yonghong Song 
Link: https://lore.kernel.org/r/20231214203820.1469402-1-yonghong.song@linux.dev
Signed-off-by: Alexei Starovoitov 
Signed-off-by: Samasth Norway Ananda 
Signed-off-by: Greg Kroah-Hartman

selftests: net: enable some more knobs

2024-02-05T20:14:38+00:00

[ Upstream commit c15a729c9d45aa142fb01a3afee822ab1f0e62a8 ]

The rtnetlink tests require additional options currently
off by default.

Fixes: 2766a11161cc ("selftests: rtnetlink: add ipsec offload API test")
Fixes: 5e596ee171ba ("selftests: add xfrm state-policy-monitor to rtnetlink.sh")
Signed-off-by: Paolo Abeni 
Link: https://lore.kernel.org/r/9048ca58e49b962f35dba1dfb2beaf3dab3e0411.1706723341.git.pabeni@redhat.com/
Signed-off-by: Jakub Kicinski 
Signed-off-by: Sasha Levin

selftests: net: add missing config for NF_TARGET_TTL

2024-02-05T20:14:38+00:00

[ Upstream commit 1939f738c73dfdb8389839bdc9624c765e3326e6 ]

amt test uses the TTL iptables module:

  ip netns exec "${RELAY}" iptables -t mangle -I PREROUTING \
  	-d 239.0.0.1 -j TTL --ttl-set 2

Fixes: c08e8baea78e ("selftests: add amt interface selftest script")
Link: https://lore.kernel.org/r/20240131165605.4051645-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski 
Signed-off-by: Sasha Levin

selftests: bonding: Check initial state

2024-02-05T20:14:38+00:00

[ Upstream commit 8cc063ae1b3dbe416ce62a15d49af4c2314b45fe ]

The purpose of the test_LAG_cleanup() function is to check that some
hardware addresses are removed from underlying devices after they have been
unenslaved. The test function simply checks that those addresses are not
present at the end. However, if the addresses were never added to begin
with due to some error in device setup, the test function currently passes.
This is a false positive since in that situation the test did not actually
exercise the intended functionality.

Add a check that the expected addresses are indeed present after device
setup. This makes the test function more robust.

I noticed this problem when running the team/dev_addr_lists.sh test on a
system without support for dummy and ipv6:

tools/testing/selftests/drivers/net/team# ./dev_addr_lists.sh
Error: Unknown device type.
Error: Unknown device type.
This program is not intended to be run as root.
RTNETLINK answers: Operation not supported
TEST: team cleanup mode lacp                                        [ OK ]

Fixes: bbb774d921e2 ("net: Add tests for bonding and team address list management")
Signed-off-by: Benjamin Poirier 
Link: https://lore.kernel.org/r/20240131140848.360618-3-bpoirier@nvidia.com
Signed-off-by: Jakub Kicinski 
Signed-off-by: Sasha Levin

selftests: team: Add missing config options

2024-02-05T20:14:38+00:00

[ Upstream commit 7b6fb3050d8f5e2b6858eef344e47ac1f5442827 ]

Similar to commit dd2d40acdbb2 ("selftests: bonding: Add more missing
config options"), add more networking-specific config options which are
needed for team device tests.

For testing, I used the minimal config generated by virtme-ng and I added
the options in the config file. Afterwards, the team device test passed.

Fixes: bbb774d921e2 ("net: Add tests for bonding and team address list management")
Reviewed-by: Petr Machata 
Signed-off-by: Benjamin Poirier 
Link: https://lore.kernel.org/r/20240131140848.360618-2-bpoirier@nvidia.com
Signed-off-by: Jakub Kicinski 
Signed-off-by: Sasha Levin

selftests: net: don't access /dev/stdout in pmtu.sh

2024-02-05T20:14:37+00:00

[ Upstream commit bc0970d5ac1d1317e212bdf55533935ecb6ae95c ]

When running the pmtu.sh via the kselftest infra, accessing
/dev/stdout gives unexpected results:
  # dd: failed to open '/dev/stdout': Device or resource busy
  # TEST: IPv4, bridged vxlan4: PMTU exceptions                         [FAIL]

Let dd use directly the standard output to fix the above:
  # TEST: IPv4, bridged vxlan4: PMTU exceptions - nexthop objects       [ OK ]

Fixes: 136a1b434bbb ("selftests: net: test vxlan pmtu exceptions with tcp")
Signed-off-by: Paolo Abeni 
Reviewed-by: Guillaume Nault 
Reviewed-by: David Ahern 
Link: https://lore.kernel.org/r/23d7592c5d77d75cff9b34f15c227f92e911c2ae.1706635101.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski 
Signed-off-by: Sasha Levin

selftests: net: fix available tunnels detection

2024-02-05T20:14:37+00:00

[ Upstream commit e4e4b6d568d2549583cbda3f8ce567e586cb05da ]

The pmtu.sh test tries to detect the tunnel protocols available
in the running kernel and properly skip the unsupported cases.

In a few more complex setup, such detection is unsuccessful, as
the script currently ignores some intermediate error code at
setup time.

Before:
  # which: no nettest in (/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin)
  # TEST: vti6: PMTU exceptions (ESP-in-UDP)                            [FAIL]
  #   PMTU exception wasn't created after creating tunnel exceeding link layer MTU
  # ./pmtu.sh: line 931: kill: (7543) - No such process
  # ./pmtu.sh: line 931: kill: (7544) - No such process

After:
  #   xfrm4 not supported
  # TEST: vti4: PMTU exceptions                                         [SKIP]

Fixes: ece1278a9b81 ("selftests: net: add ESP-in-UDP PMTU test")
Signed-off-by: Paolo Abeni 
Reviewed-by: Guillaume Nault 
Reviewed-by: David Ahern 
Link: https://lore.kernel.org/r/cab10e75fda618e6fff8c595b632f47db58b9309.1706635101.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski 
Signed-off-by: Sasha Levin

selftests: net: add missing config for pmtu.sh tests

2024-02-05T20:14:37+00:00

[ Upstream commit f7c25d8e17dd759d97ca093faf92eeb7da7b3890 ]

The mentioned test uses a few Kconfig still missing the
net config, add them.

Before:
  # Error: Specified qdisc kind is unknown.
  # Error: Specified qdisc kind is unknown.
  # Error: Qdisc not classful.
  # We have an error talking to the kernel
  # Error: Qdisc not classful.
  # We have an error talking to the kernel
  #   policy_routing not supported
  # TEST: ICMPv4 with DSCP and ECN: PMTU exceptions                     [SKIP]

After:
  # TEST: ICMPv4 with DSCP and ECN: PMTU exceptions                     [ OK ]

Fixes: ec730c3e1f0e ("selftest: net: Test IPv4 PMTU exceptions with DSCP and ECN")
Signed-off-by: Paolo Abeni 
Reviewed-by: Guillaume Nault 
Reviewed-by: David Ahern 
Link: https://lore.kernel.org/r/8d27bf6762a5c7b3acc457d6e6872c533040f9c1.1706635101.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski 
Signed-off-by: Sasha Levin

selftests: net: add missing config for nftables-backed iptables

2024-02-05T20:14:37+00:00

[ Upstream commit 59c93583491ab15db109f9902524d241c4fa4c0b ]

Modern OSes use iptables implementation with nf_tables as a backend,
e.g.:

$ iptables -V
iptables v1.8.8 (nf_tables)

Pablo points out that we need CONFIG_NFT_COMPAT to make that work,
otherwise we see a lot of:

  Warning: Extension DNAT revision 0 not supported, missing kernel module?

with DNAT being just an example here, other modules we need
include udp, TTL, length etc.

Link: https://lore.kernel.org/r/20240126201308.2903602-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski 
Stable-dep-of: f7c25d8e17dd ("selftests: net: add missing config for pmtu.sh tests")
Signed-off-by: Sasha Levin

selftests: net: add missing config for GENEVE

2024-02-05T20:14:36+00:00

[ Upstream commit c9ec85153fea6873c52ed4f5055c87263f1b54f9 ]

l2_tos_ttl_inherit.sh verifies the inheritance of tos and ttl
for GRETAP, VXLAN and GENEVE.
Before testing it checks if the required module is available
and if not skips the tests accordingly.
Currently only GRETAP and VXLAN are tested because the GENEVE
module is missing.

Fixes: b690842d12fd ("selftests/net: test l2 tunnel TOS/TTL inheriting")
Signed-off-by: Matthias May 
Link: https://lore.kernel.org/r/20240130101157.196006-1-matthias.may@westermo.com
Signed-off-by: Jakub Kicinski 
Signed-off-by: Sasha Levin