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Someone reported on GitHub that the YNL NIPA test is failing
when run locally. The test builds the tools, and it hits:
netdev.c:82:9: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
82 | scanf("%d", &ifindex);
I can't repro this on my setups but error seems clear enough.
Link: https://github.com/linux-netdev/nipa/discussions/37
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Link: https://patch.msgid.link/20240828173609.2951335-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Checking if dump is empty requires a couple of casts.
Add a convenient wrapper.
Add an example use in the netdev sample, loopback is always
present so an empty dump is an error.
Reviewed-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Link: https://lore.kernel.org/r/20240329181651.319326-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In a similar fashion we do for the other bit masks.
Fix mask parsing (>= vs >) while we are it.
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20231127190319.1190813-4-sdf@google.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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The tool can be used to verify that everything works end to end.
Unrelated updates:
- include tools/include/uapi to pick the latest kernel uapi headers
- print "xdp-features" and "xdp-rx-metadata-features" so it's clear
which bitmask is being dumped
Cc: netdev@vger.kernel.org
Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/r/20230913171350.369987-4-sdf@google.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
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Technically we don't have to keep extending the sample, but it
feels useful to run these tools locally to confirm everything
is working.
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230727163001.3952878-5-sdf@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add a sample application using the C library.
My main goal is to make writing selftests easier but until
I have some of those ready I think it's useful to show off
the functionality and let people poke and tinker.
Sample outputs - dump:
$ ./netdev
Select ifc ($ifindex; or 0 = dump; or -2 ntf check): 0
lo[1] 0:
enp1s0[2] 23: basic redirect rx-sg
Notifications (watching veth pair getting added and deleted):
$ ./netdev
Select ifc ($ifindex; or 0 = dump; or -2 ntf check): -2
[53] 0: (ntf: dev-add-ntf)
[54] 0: (ntf: dev-add-ntf)
[54] 23: basic redirect rx-sg (ntf: dev-change-ntf)
[53] 23: basic redirect rx-sg (ntf: dev-change-ntf)
[53] 23: basic redirect rx-sg (ntf: dev-del-ntf)
[54] 23: basic redirect rx-sg (ntf: dev-del-ntf)
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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