net/rxrpc/insecure.c

   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 };