bpf: allow sk_msg programs to read sock fields

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Currently sk_msg programs only have access to the raw data. However,
it is often useful when building policies to have the policies specific
to the socket endpoint. This allows using the socket tuple as input
into filters, etc.

This patch adds ctx access to the sock fields.

Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

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John Fastabend 2018-05-17 14:16:58 -07:00 • committed by Daniel Borkmann

parent 1cb61381e7

commit 303def35f6

4 changed files with 121 additions and 3 deletions

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8

include/uapi/linux/bpf.h

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