common/PKCS15OID.cpp

   1 /*
   2  * Copyright (c) 2012, 2013 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 /* standard library header */
  18
  19 /* SLP library header */
  20
  21 /* local header */
  22 #include "Debug.h"
  23 #include "PKCS15.h"
  24 #include "PKCS15OID.h"
  25 #include "SimpleTLV.h"
  26
  27 namespace smartcard_service_api
  28 {
  29         PKCS15OID::PKCS15OID(const ByteArray &data)
  30         {
  31                 parseOID(data);
  32         }
  33
  34         PKCS15OID::~PKCS15OID()
  35         {
  36         }
  37
  38         bool PKCS15OID::parseOID(const ByteArray &data)
  39         {
  40                 bool result = false;
  41                 SimpleTLV tlv(data);
  42
  43                 _BEGIN();
  44
  45                 while (tlv.decodeTLV() == true)
  46                 {
  47                         switch (tlv.getTag())
  48                         {
  49                         case PKCS15::TAG_SEQUENCE :
  50                                 if (tlv.size() > 0)
  51                                 {
  52                                         /* common object attribute */
  53                                         tlv.enterToValueTLV();
  54                                         if (tlv.decodeTLV() == true && tlv.getTag() == 0x0C) /* ?? */
  55                                         {
  56                                                 name = tlv.getValue();
  57                                         }
  58                                         tlv.returnToParentTLV();
  59                                 }
  60                                 else
  61                                 {
  62                                         /* common object attribute */
  63                                         /* if you want to use this value, add member variable and parse here */
  64 //                                      _ERR("common object attribute is empty");
  65                                 }
  66                                 break;
  67
  68                         case 0xA0 : /* CHOICE 0 : External Oid??? */
  69                                 _ERR("oid doesn't exist");
  70                                 break;
  71
  72                         case 0xA1 : /* CHOICE 1 : OidDO */
  73                                 tlv.enterToValueTLV();
  74
  75                                 /* attribute */
  76                                 if (tlv.decodeTLV() == true && tlv.getTag() == PKCS15::TAG_SEQUENCE)
  77                                 {
  78                                         tlv.enterToValueTLV();
  79
  80                                         /* oid */
  81                                         if (tlv.decodeTLV() == true && tlv.getTag() == (unsigned int)0x06) /* ?? */
  82                                         {
  83                                                 oid = tlv.getValue();
  84
  85                                                 _DBG("oid : %s", oid.toString().c_str());
  86                                         }
  87                                         else
  88                                         {
  89                                                 _ERR("oid is empty");
  90                                         }
  91
  92                                         /* path */
  93                                         if (tlv.decodeTLV() == true && tlv.getTag() == PKCS15::TAG_SEQUENCE)
  94                                         {
  95                                                 path = SimpleTLV::getOctetString(tlv.getValue());
  96
  97                                                 _DBG("path : %s", path.toString().c_str());
  98
  99                                                 result = true;
 100                                         }
 101                                         else
 102                                         {
 103                                                 _ERR("sequence is empty");
 104                                         }
 105
 106                                         tlv.returnToParentTLV();
 107                                 }
 108                                 else
 109                                 {
 110                                         _ERR("common dataobject attribute is empty");
 111                                 }
 112                                 tlv.returnToParentTLV();
 113
 114                                 break;
 115
 116                         default :
 117                                 _ERR("Unknown tag : 0x%02X", tlv.getTag());
 118                                 break;
 119                         }
 120                 }
 121
 122                 _END();
 123
 124                 return result;
 125         }
 126 } /* namespace smartcard_service_api */