rxrpc: Create a null security type and get rid of conditional calls
Create a null security type for security index 0 and get rid of all
conditional calls to the security operations. We expect normally to be
using security, so this should be of little negative impact.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/rxrpc/insecure.c b/net/rxrpc/insecure.c
new file mode 100644
index 0000000..e571403
--- /dev/null
+++ b/net/rxrpc/insecure.c
@@ -0,0 +1,83 @@
+/* Null security operations.
+ *
+ * Copyright (C) 2016 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#include <net/af_rxrpc.h>
+#include "ar-internal.h"
+
+static int none_init_connection_security(struct rxrpc_connection *conn)
+{
+ return 0;
+}
+
+static void none_prime_packet_security(struct rxrpc_connection *conn)
+{
+}
+
+static int none_secure_packet(const struct rxrpc_call *call,
+ struct sk_buff *skb,
+ size_t data_size,
+ void *sechdr)
+{
+ return 0;
+}
+
+static int none_verify_packet(const struct rxrpc_call *call,
+ struct sk_buff *skb,
+ u32 *_abort_code)
+{
+ return 0;
+}
+
+static int none_respond_to_challenge(struct rxrpc_connection *conn,
+ struct sk_buff *skb,
+ u32 *_abort_code)
+{
+ *_abort_code = RX_PROTOCOL_ERROR;
+ return -EPROTO;
+}
+
+static int none_verify_response(struct rxrpc_connection *conn,
+ struct sk_buff *skb,
+ u32 *_abort_code)
+{
+ *_abort_code = RX_PROTOCOL_ERROR;
+ return -EPROTO;
+}
+
+static void none_clear(struct rxrpc_connection *conn)
+{
+}
+
+static int none_init(void)
+{
+ return 0;
+}
+
+static void none_exit(void)
+{
+}
+
+/*
+ * RxRPC Kerberos-based security
+ */
+const struct rxrpc_security rxrpc_no_security = {
+ .name = "none",
+ .security_index = RXRPC_SECURITY_NONE,
+ .init = none_init,
+ .exit = none_exit,
+ .init_connection_security = none_init_connection_security,
+ .prime_packet_security = none_prime_packet_security,
+ .secure_packet = none_secure_packet,
+ .verify_packet = none_verify_packet,
+ .respond_to_challenge = none_respond_to_challenge,
+ .verify_response = none_verify_response,
+ .clear = none_clear,
+};