tree abf3c783fb73b147f463fa686715a08fd2a969c1
parent 4915f7bbc402071539ec0cb8c75aad878c982402
author Willem de Bruijn <willemb@google.com> 1483395586 -0500
committer Pablo Neira Ayuso <pablo@netfilter.org> 1483979095 +0100

xtables: extend matches and targets with .usersize

In matches and targets that define a kernel-only tail to their
xt_match and xt_target data structs, add a field .usersize that
specifies up to where data is to be shared with userspace.

Performed a search for comment "Used internally by the kernel" to find
relevant matches and targets. Manually inspected the structs to derive
a valid offsetof.

Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>