1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* Null security operations.
3 *
4 * Copyright (C) 2016 Red Hat, Inc. All Rights Reserved.
5 * Written by David Howells (dhowells@redhat.com)
6 */
7
8 #include <net/af_rxrpc.h>
9 #include "ar-internal.h"
10
none_init_connection_security(struct rxrpc_connection * conn)11 static int none_init_connection_security(struct rxrpc_connection *conn)
12 {
13 return 0;
14 }
15
none_prime_packet_security(struct rxrpc_connection * conn)16 static int none_prime_packet_security(struct rxrpc_connection *conn)
17 {
18 return 0;
19 }
20
none_secure_packet(struct rxrpc_call * call,struct sk_buff * skb,size_t data_size,void * sechdr)21 static int none_secure_packet(struct rxrpc_call *call,
22 struct sk_buff *skb,
23 size_t data_size,
24 void *sechdr)
25 {
26 return 0;
27 }
28
none_verify_packet(struct rxrpc_call * call,struct sk_buff * skb,unsigned int offset,unsigned int len,rxrpc_seq_t seq,u16 expected_cksum)29 static int none_verify_packet(struct rxrpc_call *call, struct sk_buff *skb,
30 unsigned int offset, unsigned int len,
31 rxrpc_seq_t seq, u16 expected_cksum)
32 {
33 return 0;
34 }
35
none_free_call_crypto(struct rxrpc_call * call)36 static void none_free_call_crypto(struct rxrpc_call *call)
37 {
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 struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
50
51 trace_rxrpc_rx_eproto(NULL, sp->hdr.serial,
52 tracepoint_string("chall_none"));
53 return -EPROTO;
54 }
55
none_verify_response(struct rxrpc_connection * conn,struct sk_buff * skb,u32 * _abort_code)56 static int none_verify_response(struct rxrpc_connection *conn,
57 struct sk_buff *skb,
58 u32 *_abort_code)
59 {
60 struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
61
62 trace_rxrpc_rx_eproto(NULL, sp->hdr.serial,
63 tracepoint_string("resp_none"));
64 return -EPROTO;
65 }
66
none_clear(struct rxrpc_connection * conn)67 static void none_clear(struct rxrpc_connection *conn)
68 {
69 }
70
none_init(void)71 static int none_init(void)
72 {
73 return 0;
74 }
75
none_exit(void)76 static void none_exit(void)
77 {
78 }
79
80 /*
81 * RxRPC Kerberos-based security
82 */
83 const struct rxrpc_security rxrpc_no_security = {
84 .name = "none",
85 .security_index = RXRPC_SECURITY_NONE,
86 .init = none_init,
87 .exit = none_exit,
88 .init_connection_security = none_init_connection_security,
89 .prime_packet_security = none_prime_packet_security,
90 .free_call_crypto = none_free_call_crypto,
91 .secure_packet = none_secure_packet,
92 .verify_packet = none_verify_packet,
93 .locate_data = none_locate_data,
94 .respond_to_challenge = none_respond_to_challenge,
95 .verify_response = none_verify_response,
96 .clear = none_clear,
97 };
98