src/libcharon/plugins/dhcp/dhcp_transaction.c

   1 /*
   2  * Copyright (C) 2010 Martin Willi
   3  * Copyright (C) 2010 revosec AG
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License as published by the
   7  * Free Software Foundation; either version 2 of the License, or (at your
   8  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  12  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * for more details.
  14  */
  15
  16 #include "dhcp_transaction.h"
  17
  18 typedef struct private_dhcp_transaction_t private_dhcp_transaction_t;
  19
  20 /**
  21  * Private data of an dhcp_transaction_t object.
  22  */
  23 struct private_dhcp_transaction_t {
  24
  25         /**
  26          * Public dhcp_transaction_t interface.
  27          */
  28         dhcp_transaction_t public;
  29
  30         /**
  31          * DHCP transaction ID
  32          */
  33         u_int32_t id;
  34
  35         /**
  36          * Peer identity
  37          */
  38         identification_t *identity;
  39
  40         /**
  41          * received DHCP address
  42          */
  43         host_t *address;
  44
  45         /**
  46          * discovered DHCP server address
  47          */
  48         host_t *server;
  49 };
  50
  51 METHOD(dhcp_transaction_t, get_id, u_int32_t,
  52         private_dhcp_transaction_t *this)
  53 {
  54         return this->id;
  55 }
  56
  57 METHOD(dhcp_transaction_t, get_identity, identification_t*,
  58         private_dhcp_transaction_t *this)
  59 {
  60         return this->identity;
  61 }
  62
  63 METHOD(dhcp_transaction_t, set_address, void,
  64         private_dhcp_transaction_t *this, host_t *address)
  65 {
  66         DESTROY_IF(this->address);
  67         this->address = address;
  68 }
  69
  70 METHOD(dhcp_transaction_t, get_address, host_t*,
  71         private_dhcp_transaction_t *this)
  72 {
  73         return this->address;
  74 }
  75
  76 METHOD(dhcp_transaction_t, set_server, void,
  77         private_dhcp_transaction_t *this, host_t *server)
  78 {
  79         DESTROY_IF(this->server);
  80         this->server = server;
  81 }
  82
  83 METHOD(dhcp_transaction_t, get_server, host_t*,
  84         private_dhcp_transaction_t *this)
  85 {
  86         return this->server;
  87 }
  88
  89 METHOD(dhcp_transaction_t, destroy, void,
  90         private_dhcp_transaction_t *this)
  91 {
  92         this->identity->destroy(this->identity);
  93         DESTROY_IF(this->address);
  94         DESTROY_IF(this->server);
  95         free(this);
  96 }
  97
  98 /**
  99  * See header
 100  */
 101 dhcp_transaction_t *dhcp_transaction_create(u_int32_t id,
 102                                                                                         identification_t *identity)
 103 {
 104         private_dhcp_transaction_t *this;
 105
 106         INIT(this,
 107                 .public = {
 108                         .get_id = _get_id,
 109                         .get_identity = _get_identity,
 110                         .set_address = _set_address,
 111                         .get_address = _get_address,
 112                         .set_server = _set_server,
 113                         .get_server = _get_server,
 114                         .destroy = _destroy,
 115                 },
 116                 .id = id,
 117                 .identity = identity->clone(identity),
 118         );
 119
 120         return &this->public;
 121 }
 122