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 void none_prime_packet_security(struct rxrpc_connection *conn)
  21 {
  22 }
  23
  24 static int none_secure_packet(const struct rxrpc_call *call,
  25                                struct sk_buff *skb,
  26                                size_t data_size,
  27                                void *sechdr)
  28 {
  29         return 0;
  30 }
  31
  32 static int none_verify_packet(const struct rxrpc_call *call,
  33                                struct sk_buff *skb,
  34                                u32 *_abort_code)
  35 {
  36         return 0;
  37 }
  38
  39 static int none_respond_to_challenge(struct rxrpc_connection *conn,
  40                                       struct sk_buff *skb,
  41                                       u32 *_abort_code)
  42 {
  43         *_abort_code = RX_PROTOCOL_ERROR;
  44         return -EPROTO;
  45 }
  46
  47 static int none_verify_response(struct rxrpc_connection *conn,
  48                                  struct sk_buff *skb,
  49                                  u32 *_abort_code)
  50 {
  51         *_abort_code = RX_PROTOCOL_ERROR;
  52         return -EPROTO;
  53 }
  54
  55 static void none_clear(struct rxrpc_connection *conn)
  56 {
  57 }
  58
  59 static int none_init(void)
  60 {
  61         return 0;
  62 }
  63
  64 static void none_exit(void)
  65 {
  66 }
  67
  68 /*
  69  * RxRPC Kerberos-based security
  70  */
  71 const struct rxrpc_security rxrpc_no_security = {
  72         .name                           = "none",
  73         .security_index                 = RXRPC_SECURITY_NONE,
  74         .init                           = none_init,
  75         .exit                           = none_exit,
  76         .init_connection_security       = none_init_connection_security,
  77         .prime_packet_security          = none_prime_packet_security,
  78         .secure_packet                  = none_secure_packet,
  79         .verify_packet                  = none_verify_packet,
  80         .respond_to_challenge           = none_respond_to_challenge,
  81         .verify_response                = none_verify_response,
  82         .clear                          = none_clear,
  83 };