103 lines
2.4 KiB
C
103 lines
2.4 KiB
C
// 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 sk_buff *skb,
|
|
size_t data_size)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int none_verify_packet(struct rxrpc_call *call, struct sk_buff *skb,
|
|
unsigned int offset, unsigned int len,
|
|
rxrpc_seq_t seq, u16 expected_cksum)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static void none_free_call_crypto(struct rxrpc_call *call)
|
|
{
|
|
}
|
|
|
|
static void none_locate_data(struct rxrpc_call *call, struct sk_buff *skb,
|
|
unsigned int *_offset, unsigned int *_len)
|
|
{
|
|
}
|
|
|
|
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,
|
|
.locate_data = none_locate_data,
|
|
.respond_to_challenge = none_respond_to_challenge,
|
|
.verify_response = none_verify_response,
|
|
.clear = none_clear,
|
|
};
|