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// 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,
u32 *_abort_code)
{
struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
trace_rxrpc_rx_eproto(NULL, sp->hdr.serial,
tracepoint_string("chall_none"));
return -EPROTO;
}
static int none_verify_response(struct rxrpc_connection *conn,
struct sk_buff *skb,
u32 *_abort_code)
{
struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
trace_rxrpc_rx_eproto(NULL, sp->hdr.serial,
tracepoint_string("resp_none"));
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,
.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,
};
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