selftests/bpf: add network helpers to generate udp checksums

Browse source

network_helpers.c provides some helpers to generate ip checksums or ip
pseudo-header checksums, but not for upper layers (eg: udp checksums)

Add helpers for udp checksum to allow manually building udp packets.

Signed-off-by: Alexis Lothoré (eBPF Foundation) <alexis.lothore@bootlin.com>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://lore.kernel.org/r/20241120-flow_dissector-v3-12-45b46494f937@bootlin.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

...

This commit is contained in:

Alexis Lothoré (eBPF Foundation) 2024-11-20 08:43:22 +01:00 • committed by Alexei Starovoitov

parent a2f482c34a

commit bcc00987bc

1 changed files with 42 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

42

tools/testing/selftests/bpf/network_helpers.h

View file