Commit 0888e372 authored by Levin, Alexander (Sasha Levin)'s avatar Levin, Alexander (Sasha Levin) Committed by David S. Miller

net: inet: diag: expose sockets cgroup classid

This is useful for directly looking up a task based on class id rather than
having to scan through all open file descriptors.
Signed-off-by: 's avatarSasha Levin <alexander.levin@verizon.com>
Signed-off-by: 's avatarDavid S. Miller <davem@davemloft.net>
parent f21e5077
......@@ -142,6 +142,7 @@ enum {
INET_DIAG_PAD,
INET_DIAG_MARK,
INET_DIAG_BBRINFO,
INET_DIAG_CLASS_ID,
__INET_DIAG_MAX,
};
......
......@@ -274,6 +274,17 @@ int inet_sk_diag_fill(struct sock *sk, struct inet_connection_sock *icsk,
goto errout;
}
if (ext & (1 << (INET_DIAG_CLASS_ID - 1))) {
u32 classid = 0;
#ifdef CONFIG_SOCK_CGROUP_DATA
classid = sock_cgroup_classid(&sk->sk_cgrp_data);
#endif
if (nla_put_u32(skb, INET_DIAG_CLASS_ID, classid))
goto errout;
}
out:
nlmsg_end(skb, nlh);
return 0;
......
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