Martin KaFai Lau
f649f992de
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>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.