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Diffstat (limited to 'net/core/sock.c')
-rw-r--r--net/core/sock.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/net/core/sock.c b/net/core/sock.c
index bc131d419683..8258fb741e9a 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -861,6 +861,13 @@ set_rcvbuf:
ret = sk_detach_filter(sk);
break;
+ case SO_LOCK_FILTER:
+ if (sock_flag(sk, SOCK_FILTER_LOCKED) && !valbool)
+ ret = -EPERM;
+ else
+ sock_valbool_flag(sk, SOCK_FILTER_LOCKED, valbool);
+ break;
+
case SO_PASSSEC:
if (valbool)
set_bit(SOCK_PASSSEC, &sock->flags);
@@ -1140,6 +1147,10 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
goto lenout;
+ case SO_LOCK_FILTER:
+ v.val = sock_flag(sk, SOCK_FILTER_LOCKED);
+ break;
+
default:
return -ENOPROTOOPT;
}