linux-yocto/tools
Ido Schimmel cf2d597fb6 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 13:39:12 +02:00
..
accounting
arch tools/x86/kcpuid: Protect against faulty "max subleaf" values 2024-10-17 15:11:28 +02:00
bootconfig tools/bootconfig: Fix the wrong format specifier 2025-03-13 12:50:10 +01:00
bpf bpftool: Fix memory leak in dump_xx_nlmsg on realloc failure 2025-08-28 16:24:07 +02:00
build tools/build: Don't pass test log files to linker 2025-06-04 14:37:55 +02:00
cgroup
debugging
edid
firewire
firmware
gpio tools: gpio: fix debounce_period_us output of lsgpio 2023-06-21 15:59:12 +02:00
hv vmbus_testing: fix wrong python syntax for integer value comparison 2023-09-19 12:22:28 +02:00
iio tools/iio: Add memory allocation failure check for trigger_name 2024-10-17 15:11:52 +02:00
include tools/nolibc: define time_t in terms of __kernel_old_time_t 2025-08-28 16:24:18 +02:00
io_uring
kvm/kvm_stat tools/kvm_stat: fix display of error when multiple processes are found 2022-08-11 13:07:51 +02:00
laptop
leds
lib libbpf: Fix null pointer dereference in btf_dump__free on allocation failure 2025-07-10 15:57:38 +02:00
memory-model tools/memory-model: Fix bug in lock.cat 2024-08-19 05:45:15 +02:00
objtool objtool: Stop UNRET validation on UD2 2025-05-02 07:44:37 +02:00
pci
pcmcia
perf perf bpf-event: Fix use-after-free in synthesis 2025-09-09 18:50:24 +02:00
power pm: cpupower: Fix the snapshot-order of tsc,mperf, clock in mperf_stop() 2025-08-28 16:24:19 +02:00
rcu
scripts tools: Override makefile ARCH variable if defined, but empty 2024-12-14 19:51:30 +01:00
spi
testing selftests: fib_nexthops: Fix creation of non-FDB nexthops 2025-10-02 13:39:12 +02:00
thermal/tmon tools/thermal: Fix possible path truncations 2022-08-17 14:24:15 +02:00
time
tracing tools/latency-collector: Fix -Wformat-security compile warns 2024-06-16 13:39:12 +02:00
usb usbip: tools: Fix detach_port() invalid port error path 2024-11-08 16:25:54 +01:00
virtio tools/virtio: fix build 2024-03-01 13:21:52 +01:00
vm tools/vm/slabinfo-gnuplot: use "grep -E" instead of "egrep" 2022-12-08 11:28:42 +01:00
wmi
Makefile