From 298cd88a66a02c899772ffafbf648786ceb5ab95 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 28 May 2020 07:12:35 +0200 Subject: rxrpc: add rxrpc_sock_set_min_security_level Add a helper to directly set the RXRPC_MIN_SECURITY_LEVEL sockopt from kernel space without going through a fake uaccess. Thanks to David Howells for the documentation updates. Signed-off-by: Christoph Hellwig Acked-by: David Howells Signed-off-by: David S. Miller --- net/rxrpc/af_rxrpc.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'net') diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c index 15ee92d79581..394189b81849 100644 --- a/net/rxrpc/af_rxrpc.c +++ b/net/rxrpc/af_rxrpc.c @@ -571,6 +571,19 @@ out: return ret; } +int rxrpc_sock_set_min_security_level(struct sock *sk, unsigned int val) +{ + if (sk->sk_state != RXRPC_UNBOUND) + return -EISCONN; + if (val > RXRPC_SECURITY_MAX) + return -EINVAL; + lock_sock(sk); + rxrpc_sk(sk)->min_sec_level = val; + release_sock(sk); + return 0; +} +EXPORT_SYMBOL(rxrpc_sock_set_min_security_level); + /* * set RxRPC socket options */ -- cgit v1.2.3