Re: [PATCH net-next v3] net: inet: diag: expose the socket mark to privileged processes.

From: Lorenzo Colitti <redacted>
Date: Thu,  8 Sep 2016 00:42:25 +0900

This adds the capability for a process that has CAP_NET_ADMIN on
a socket to see the socket mark in socket dumps.

Commit a52e95abf772 ("net: diag: allow socket bytecode filters to
match socket marks") recently gave privileged processes the
ability to filter socket dumps based on mark. This patch is
complementary: it ensures that the mark is also passed to
userspace in the socket's netlink attributes.  It is useful for
tools like ss which display information about sockets.

Tested: https://android-review.googlesource.com/270210
Signed-off-by: Lorenzo Colitti <redacted>

Applied, but the argument list of inet_sk_diag_fill is starting to get out
of control.