1 /* Null security operations.
2 *
3 * Copyright (C) 2016 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public Licence
8 * as published by the Free Software Foundation; either version
9 * 2 of the Licence, or (at your option) any later version.
10 */
11
12 #include <net/af_rxrpc.h>
13 #include "ar-internal.h"
14
none_init_connection_security(struct rxrpc_connection * conn)15 static int none_init_connection_security(struct rxrpc_connection *conn)
16 {
17 return 0;
18 }
19
none_prime_packet_security(struct rxrpc_connection * conn)20 static int none_prime_packet_security(struct rxrpc_connection *conn)
21 {
22 return 0;
23 }
24
none_secure_packet(struct rxrpc_call * call,struct sk_buff * skb,size_t data_size,void * sechdr)25 static int none_secure_packet(struct rxrpc_call *call,
26 struct sk_buff *skb,
27 size_t data_size,
28 void *sechdr)
29 {
30 return 0;
31 }
32
none_verify_packet(struct rxrpc_call * call,struct sk_buff * skb,unsigned int offset,unsigned int len,rxrpc_seq_t seq,u16 expected_cksum)33 static int none_verify_packet(struct rxrpc_call *call, struct sk_buff *skb,
34 unsigned int offset, unsigned int len,
35 rxrpc_seq_t seq, u16 expected_cksum)
36 {
37 return 0;
38 }
39
none_locate_data(struct rxrpc_call * call,struct sk_buff * skb,unsigned int * _offset,unsigned int * _len)40 static void none_locate_data(struct rxrpc_call *call, struct sk_buff *skb,
41 unsigned int *_offset, unsigned int *_len)
42 {
43 }
44
none_respond_to_challenge(struct rxrpc_connection * conn,struct sk_buff * skb,u32 * _abort_code)45 static int none_respond_to_challenge(struct rxrpc_connection *conn,
46 struct sk_buff *skb,
47 u32 *_abort_code)
48 {
49 *_abort_code = RX_PROTOCOL_ERROR;
50 return -EPROTO;
51 }
52
none_verify_response(struct rxrpc_connection * conn,struct sk_buff * skb,u32 * _abort_code)53 static int none_verify_response(struct rxrpc_connection *conn,
54 struct sk_buff *skb,
55 u32 *_abort_code)
56 {
57 *_abort_code = RX_PROTOCOL_ERROR;
58 return -EPROTO;
59 }
60
none_clear(struct rxrpc_connection * conn)61 static void none_clear(struct rxrpc_connection *conn)
62 {
63 }
64
none_init(void)65 static int none_init(void)
66 {
67 return 0;
68 }
69
none_exit(void)70 static void none_exit(void)
71 {
72 }
73
74 /*
75 * RxRPC Kerberos-based security
76 */
77 const struct rxrpc_security rxrpc_no_security = {
78 .name = "none",
79 .security_index = RXRPC_SECURITY_NONE,
80 .init = none_init,
81 .exit = none_exit,
82 .init_connection_security = none_init_connection_security,
83 .prime_packet_security = none_prime_packet_security,
84 .secure_packet = none_secure_packet,
85 .verify_packet = none_verify_packet,
86 .locate_data = none_locate_data,
87 .respond_to_challenge = none_respond_to_challenge,
88 .verify_response = none_verify_response,
89 .clear = none_clear,
90 };
91