documentation/bpf: Document cgroup unix socket address hooks

Update the documentation to mention the new cgroup unix sockaddr
hooks.

Signed-off-by: Daan De Meyer <daan.j.demeyer@gmail.com>
Link: https://lore.kernel.org/r/20231011185113.140426-8-daan.j.demeyer@gmail.com


Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>

Documentation/bpf/libbpf/program_types.rst

@@ -56,6 +56,16 @@ described in more detail in the footnotes.
 |                                           | ``BPF_CGROUP_UDP6_RECVMSG``            | ``cgroup/recvmsg6``              |           |
 +                                           +----------------------------------------+----------------------------------+-----------+
 |                                           | ``BPF_CGROUP_UDP6_SENDMSG``            | ``cgroup/sendmsg6``              |           |
+|                                           +----------------------------------------+----------------------------------+-----------+
+|                                           | ``BPF_CGROUP_UNIX_CONNECT``            | ``cgroup/connect_unix``          |           |
+|                                           +----------------------------------------+----------------------------------+-----------+
+|                                           | ``BPF_CGROUP_UNIX_SENDMSG``            | ``cgroup/sendmsg_unix``          |           |
+|                                           +----------------------------------------+----------------------------------+-----------+
+|                                           | ``BPF_CGROUP_UNIX_RECVMSG``            | ``cgroup/recvmsg_unix``          |           |
+|                                           +----------------------------------------+----------------------------------+-----------+
+|                                           | ``BPF_CGROUP_UNIX_GETPEERNAME``        | ``cgroup/getpeername_unix``      |           |
+|                                           +----------------------------------------+----------------------------------+-----------+
+|                                           | ``BPF_CGROUP_UNIX_GETSOCKNAME``        | ``cgroup/getsockname_unix``      |           |
 +-------------------------------------------+----------------------------------------+----------------------------------+-----------+
 | ``BPF_PROG_TYPE_CGROUP_SOCK``             | ``BPF_CGROUP_INET4_POST_BIND``         | ``cgroup/post_bind4``            |           |
 +                                           +----------------------------------------+----------------------------------+-----------+