| xj | b04a402 | 2021-11-25 15:01:52 +0800 | [diff] [blame] | 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 | |
| 15 | static int none_init_connection_security(struct rxrpc_connection *conn) |
| 16 | { |
| 17 | return 0; |
| 18 | } |
| 19 | |
| 20 | static int none_prime_packet_security(struct rxrpc_connection *conn) |
| 21 | { |
| 22 | return 0; |
| 23 | } |
| 24 | |
| 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 | |
| 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 | |
| 40 | static void none_locate_data(struct rxrpc_call *call, struct sk_buff *skb, |
| 41 | unsigned int *_offset, unsigned int *_len) |
| 42 | { |
| 43 | } |
| 44 | |
| 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 | |
| 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 | |
| 67 | static void none_clear(struct rxrpc_connection *conn) |
| 68 | { |
| 69 | } |
| 70 | |
| 71 | static int none_init(void) |
| 72 | { |
| 73 | return 0; |
| 74 | } |
| 75 | |
| 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 | .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 | }; |