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linux-yocto/tools/testing
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Ido Schimmel fbf6548f0f selftests: fib_nexthops: Fix creation of non-FDB nexthops 
[ Upstream commit c29913109c70383cdf90b6fc792353e1009f24f5 ]

The test creates non-FDB nexthops without a nexthop device which leads
to the expected failure, but for the wrong reason:

 # ./fib_nexthops.sh -t "ipv6_fdb_grp_fcnal ipv4_fdb_grp_fcnal" -v

 IPv6 fdb groups functional
 --------------------------
 [...]
 COMMAND: ip -netns me-nRsN3E nexthop add id 63 via 2001:db8:91::4
 Error: Device attribute required for non-blackhole and non-fdb nexthops.
 COMMAND: ip -netns me-nRsN3E nexthop add id 64 via 2001:db8:91::5
 Error: Device attribute required for non-blackhole and non-fdb nexthops.
 COMMAND: ip -netns me-nRsN3E nexthop add id 103 group 63/64 fdb
 Error: Invalid nexthop id.
 TEST: Fdb Nexthop group with non-fdb nexthops                       [ OK ]
 [...]

 IPv4 fdb groups functional
 --------------------------
 [...]
 COMMAND: ip -netns me-nRsN3E nexthop add id 14 via 172.16.1.2
 Error: Device attribute required for non-blackhole and non-fdb nexthops.
 COMMAND: ip -netns me-nRsN3E nexthop add id 15 via 172.16.1.3
 Error: Device attribute required for non-blackhole and non-fdb nexthops.
 COMMAND: ip -netns me-nRsN3E nexthop add id 103 group 14/15 fdb
 Error: Invalid nexthop id.
 TEST: Fdb Nexthop group with non-fdb nexthops                       [ OK ]

 COMMAND: ip -netns me-nRsN3E nexthop add id 16 via 172.16.1.2 fdb
 COMMAND: ip -netns me-nRsN3E nexthop add id 17 via 172.16.1.3 fdb
 COMMAND: ip -netns me-nRsN3E nexthop add id 104 group 14/15
 Error: Invalid nexthop id.
 TEST: Non-Fdb Nexthop group with fdb nexthops                       [ OK ]
 [...]
 COMMAND: ip -netns me-0dlhyd ro add 172.16.0.0/22 nhid 15
 Error: Nexthop id does not exist.
 TEST: Route add with fdb nexthop                                    [ OK ]

In addition, as can be seen in the above output, a couple of IPv4 test
cases used the non-FDB nexthops (14 and 15) when they intended to use
the FDB nexthops (16 and 17). These test cases only passed because
failure was expected, but they failed for the wrong reason.

Fix the test to create the non-FDB nexthops with a nexthop device and
adjust the IPv4 test cases to use the FDB nexthops instead of the
non-FDB nexthops.

Output after the fix:

 # ./fib_nexthops.sh -t "ipv6_fdb_grp_fcnal ipv4_fdb_grp_fcnal" -v

 IPv6 fdb groups functional
 --------------------------
 [...]
 COMMAND: ip -netns me-lNzfHP nexthop add id 63 via 2001:db8:91::4 dev veth1
 COMMAND: ip -netns me-lNzfHP nexthop add id 64 via 2001:db8:91::5 dev veth1
 COMMAND: ip -netns me-lNzfHP nexthop add id 103 group 63/64 fdb
 Error: FDB nexthop group can only have fdb nexthops.
 TEST: Fdb Nexthop group with non-fdb nexthops                       [ OK ]
 [...]

 IPv4 fdb groups functional
 --------------------------
 [...]
 COMMAND: ip -netns me-lNzfHP nexthop add id 14 via 172.16.1.2 dev veth1
 COMMAND: ip -netns me-lNzfHP nexthop add id 15 via 172.16.1.3 dev veth1
 COMMAND: ip -netns me-lNzfHP nexthop add id 103 group 14/15 fdb
 Error: FDB nexthop group can only have fdb nexthops.
 TEST: Fdb Nexthop group with non-fdb nexthops                       [ OK ]

 COMMAND: ip -netns me-lNzfHP nexthop add id 16 via 172.16.1.2 fdb
 COMMAND: ip -netns me-lNzfHP nexthop add id 17 via 172.16.1.3 fdb
 COMMAND: ip -netns me-lNzfHP nexthop add id 104 group 16/17
 Error: Non FDB nexthop group cannot have fdb nexthops.
 TEST: Non-Fdb Nexthop group with fdb nexthops                       [ OK ]
 [...]
 COMMAND: ip -netns me-lNzfHP ro add 172.16.0.0/22 nhid 16
 Error: Route cannot point to a fdb nexthop.
 TEST: Route add with fdb nexthop                                    [ OK ]
 [...]
 Tests passed:  30
 Tests failed:   0
 Tests skipped:  0

Fixes: 0534c5489c ("selftests: net: add fdb nexthop tests")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250921150824.149157-3-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:10 +02:00
..
crypto/chacha20-s390
cxl cxl/test: Improve init-order fidelity relative to real-world systems 2024-10-25 16:07:04 -05:00
fault-injection failcmd: make failcmd.sh executable 2024-09-01 20:43:32 -07:00
ktest ktest.pl: Prevent recursion of default variable options 2025-08-20 18:30:29 +02:00
kunit kunit: qemu_configs: Disable faulting tests on 32-bit SPARC 2025-07-10 16:04:55 +02:00
memblock memblock: updates for 6.12-rc1 2024-09-25 11:35:19 -07:00
nvdimm
radix-tree maple_tree: add regression test for spanning store bug 2024-10-17 08:35:10 -07:00
scatterlist
selftests selftests: fib_nexthops: Fix creation of non-FDB nexthops 2025-10-02 13:44:10 +02:00
shared test suite: use %zu to print size_t 2025-04-25 10:47:43 +02:00
vma mm/hugetlb: unshare page tables during VMA split, not before 2025-06-27 11:11:40 +01:00
vsock vsock/test: Fix occasional failure in SIOCOUTQ tests 2025-05-22 14:29:41 +02:00