tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
15static int none_init_connection_security(struct rxrpc_connection *conn)
16{
17 return 0;
18}
19
20static int none_prime_packet_security(struct rxrpc_connection *conn)
21{
22 return 0;
23}
24
25static 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
33static 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
40static void none_locate_data(struct rxrpc_call *call, struct sk_buff *skb,
41 unsigned int *_offset, unsigned int *_len)
42{
43}
44
45static 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
56static 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
67static void none_clear(struct rxrpc_connection *conn)
68{
69}
70
71static int none_init(void)
72{
73 return 0;
74}
75
76static void none_exit(void)
77{
78}
79
80/*
81 * RxRPC Kerberos-based security
82 */
83const 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 .secure_packet = none_secure_packet,
91 .verify_packet = none_verify_packet,
92 .locate_data = none_locate_data,
93 .respond_to_challenge = none_respond_to_challenge,
94 .verify_response = none_verify_response,
95 .clear = none_clear,
96};