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, 34 struct sk_buff *skb, 35 u32 *_abort_code) 36 { 37 return 0; 38 } 39 40 static int none_respond_to_challenge(struct rxrpc_connection *conn, 41 struct sk_buff *skb, 42 u32 *_abort_code) 43 { 44 *_abort_code = RX_PROTOCOL_ERROR; 45 return -EPROTO; 46 } 47 48 static int none_verify_response(struct rxrpc_connection *conn, 49 struct sk_buff *skb, 50 u32 *_abort_code) 51 { 52 *_abort_code = RX_PROTOCOL_ERROR; 53 return -EPROTO; 54 } 55 56 static void none_clear(struct rxrpc_connection *conn) 57 { 58 } 59 60 static int none_init(void) 61 { 62 return 0; 63 } 64 65 static void none_exit(void) 66 { 67 } 68 69 /* 70 * RxRPC Kerberos-based security 71 */ 72 const struct rxrpc_security rxrpc_no_security = { 73 .name = "none", 74 .security_index = RXRPC_SECURITY_NONE, 75 .init = none_init, 76 .exit = none_exit, 77 .init_connection_security = none_init_connection_security, 78 .prime_packet_security = none_prime_packet_security, 79 .secure_packet = none_secure_packet, 80 .verify_packet = none_verify_packet, 81 .respond_to_challenge = none_respond_to_challenge, 82 .verify_response = none_verify_response, 83 .clear = none_clear, 84 }; 85