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-rw-r--r--net/rxrpc/insecure.c88
1 files changed, 88 insertions, 0 deletions
diff --git a/net/rxrpc/insecure.c b/net/rxrpc/insecure.c
new file mode 100644
index 000000000..34353b6e5
--- /dev/null
+++ b/net/rxrpc/insecure.c
@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* Null security operations.
+ *
+ * Copyright (C) 2016 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ */
+
+#include <net/af_rxrpc.h>
+#include "ar-internal.h"
+
+static int none_init_connection_security(struct rxrpc_connection *conn,
+ struct rxrpc_key_token *token)
+{
+ return 0;
+}
+
+/*
+ * Work out how much data we can put in an unsecured packet.
+ */
+static int none_how_much_data(struct rxrpc_call *call, size_t remain,
+ size_t *_buf_size, size_t *_data_size, size_t *_offset)
+{
+ *_buf_size = *_data_size = min_t(size_t, remain, RXRPC_JUMBO_DATALEN);
+ *_offset = 0;
+ return 0;
+}
+
+static int none_secure_packet(struct rxrpc_call *call, struct rxrpc_txbuf *txb)
+{
+ return 0;
+}
+
+static int none_verify_packet(struct rxrpc_call *call, struct sk_buff *skb)
+{
+ struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
+
+ sp->flags |= RXRPC_RX_VERIFIED;
+ return 0;
+}
+
+static void none_free_call_crypto(struct rxrpc_call *call)
+{
+}
+
+static int none_respond_to_challenge(struct rxrpc_connection *conn,
+ struct sk_buff *skb)
+{
+ return rxrpc_abort_conn(conn, skb, RX_PROTOCOL_ERROR, -EPROTO,
+ rxrpc_eproto_rxnull_challenge);
+}
+
+static int none_verify_response(struct rxrpc_connection *conn,
+ struct sk_buff *skb)
+{
+ return rxrpc_abort_conn(conn, skb, RX_PROTOCOL_ERROR, -EPROTO,
+ rxrpc_eproto_rxnull_response);
+}
+
+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,
+ .free_call_crypto = none_free_call_crypto,
+ .how_much_data = none_how_much_data,
+ .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,
+};