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 *_abort_code = RX_PROTOCOL_ERROR; 50 return -EPROTO; 51 } 52 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 61 static void none_clear(struct rxrpc_connection *conn) 62 { 63 } 64 65 static int none_init(void) 66 { 67 return 0; 68 } 69 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