6e830c2f6c
Now that sockmap/sockhash can hold listening sockets, when setting up the psock we will (i) grab references to verdict/parser progs, and (2) override socket upcalls sk_data_ready and sk_write_space. However, since we cannot redirect to listening sockets so we don't need to link the socket to the BPF progs. And more importantly we don't want the listening socket to have overridden upcalls because they would get inherited by child sockets cloned from it. Introduce a separate initialization path for listening sockets that does not change the upcalls and ignores the BPF progs. Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/bpf/20200218171023.844439-6-jakub@cloudflare.com
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.