selftest/bpf: Add test for bpf_getsockopt()

Browse source

This patch removes the __bpf_getsockopt() which directly
reads the sk by using PTR_TO_BTF_ID.  Instead, the test now directly
uses the kernel bpf helper bpf_getsockopt() which supports all
the required optname now.

TCP_SAVE[D]_SYN and TCP_MAXSEG are not tested in a loop for all
the hooks and sock_ops's cb.  TCP_SAVE[D]_SYN only works
in passive connection.  TCP_MAXSEG only works when
it is setsockopt before the connection is established and
the getsockopt return value can only be tested after
the connection is established.

Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://lore.kernel.org/r/20220902002937.2896904-1-kafai@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

...

This commit is contained in:

Martin KaFai Lau 2022-09-01 17:29:37 -07:00 • committed by Alexei Starovoitov

parent 38566ec06f

commit f649f992de

2 changed files with 43 additions and 106 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

1

tools/testing/selftests/bpf/progs/bpf_tracing_net.h

View file

148

tools/testing/selftests/bpf/progs/setget_sockopt.c

View file