tree fce01722704a787ffdcfdeba1b5dc3d305359c84
parent d30bd78ce8ba1f093aa4877ed06601d0debd872b
author Stanislav Fomichev <sdf@google.com> 1560360637 -0700
committer Daniel Borkmann <daniel@iogearbox.net> 1560554516 +0200

bpf: export bpf_sock for BPF_PROG_TYPE_CGROUP_SOCK_ADDR prog type

And let it use bpf_sk_storage_{get,delete} helpers to access socket
storage. Kernel context (struct bpf_sock_addr_kern) already has sk
member, so I just expose it to the BPF hooks. Using PTR_TO_SOCKET
instead of PTR_TO_SOCK_COMMON should be safe because the hook is
called on bind/connect.

Cc: Martin Lau <kafai@fb.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>