common/PKCS15ODF.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 #include "Debug.h"
  18 #include "PKCS15ODF.h"
  19 #include "SimpleTLV.h"
  20 #include "NumberStream.h"
  21
  22 namespace smartcard_service_api
  23 {
  24         PKCS15ODF::PKCS15ODF(Channel *channel) :
  25                 PKCS15Object(channel), dodf(NULL)
  26         {
  27                 int ret = 0;
  28
  29                 if ((ret = select(PKCS15ODF::ODF_FID)) >= SCARD_ERROR_OK)
  30                 {
  31                         ByteArray odfData, extra;
  32
  33                         _DBG("response : %s", selectResponse.toString().c_str());
  34
  35                         if ((ret = readBinary(0, 0, getFCP()->getFileSize(), odfData)) == 0)
  36                         {
  37                                 _DBG("odfData : %s", odfData.toString().c_str());
  38
  39                                 parseData(odfData);
  40                         }
  41                         else
  42                         {
  43                                 _ERR("readBinary failed, [%d]", ret);
  44                         }
  45                 }
  46                 else
  47                 {
  48                         _ERR("select failed, [%d]", ret);
  49                 }
  50         }
  51
  52         PKCS15ODF::PKCS15ODF(Channel *channel, const ByteArray &selectResponse) :
  53                 PKCS15Object(channel, selectResponse), dodf(NULL)
  54         {
  55                 int ret = 0;
  56                 ByteArray odfData;
  57
  58                 if ((ret = readBinary(0, 0, 0, odfData)) == 0)
  59                 {
  60                         _DBG("odfData : %s", odfData.toString().c_str());
  61
  62                         parseData(odfData);
  63                 }
  64                 else
  65                 {
  66                         _ERR("readBinary failed, [%d]", ret);
  67                 }
  68         }
  69
  70         PKCS15ODF::~PKCS15ODF()
  71         {
  72                 if (dodf != NULL)
  73                 {
  74                         delete dodf;
  75                         dodf = NULL;
  76                 }
  77         }
  78
  79         bool PKCS15ODF::parseData(const ByteArray &data)
  80         {
  81                 bool result = false;
  82                 SimpleTLV tlv(data);
  83
  84                 while (tlv.decodeTLV())
  85                 {
  86                         switch (tlv.getTag())
  87                         {
  88                         case (unsigned int)0xA7 ://PKCS15ODF::TAG_DODF :
  89                                 {
  90                                         ByteArray dodf;
  91
  92                                         _DBG("TAG_DODF");
  93
  94                                         dodf = PKCS15Object::getOctetStream(tlv.getValue());
  95
  96                                         _DBG("path : %s", dodf.toString().c_str());
  97
  98                                         pair<unsigned int, ByteArray> newPair(tlv.getTag(), dodf);
  99                                         dataList.insert(newPair);
 100                                 }
 101                                 break;
 102
 103                         case (unsigned int)0xA5 ://PKCS15ODF::TAG_TOKENINFO :
 104                                 {
 105                                         ByteArray tokeninfo;
 106
 107                                         _DBG("TAG_TOKENINFO");
 108
 109                                         tokeninfo = PKCS15Object::getOctetStream(tlv.getValue());
 110
 111                                         _DBG("path : %s", tokeninfo.toString().c_str());
 112
 113                                         pair<unsigned int, ByteArray> newPair(tlv.getTag(), tokeninfo);
 114                                         dataList.insert(newPair);
 115                                 }
 116                                 break;
 117
 118                         default :
 119                                 _DBG("Unknown tlv : t [%X], l [%d], v %s",
 120                                         tlv.getTag(), tlv.size(), tlv.getValue().toString().c_str());
 121                                 break;
 122                         }
 123
 124                 }
 125
 126                 _INFO("dataList.size() = %d", dataList.size());
 127
 128                 return result;
 129         }
 130
 131         PKCS15DODF *PKCS15ODF::getDODF()
 132         {
 133                 map<unsigned int, ByteArray>::iterator item;
 134
 135                 if (dodf == NULL)
 136                 {
 137                         item = dataList.find((unsigned int)0xA7/*PKCS15ODF::TAG_DODF*/);
 138                         if (item != dataList.end())
 139                         {
 140                                 NumberStream num(item->second);
 141                                 unsigned int fid = num.getLittleEndianNumber();
 142
 143                                 _DBG("fid [%X]", fid);
 144
 145                                 dodf = new PKCS15DODF(fid, channel);
 146                                 if (dodf != NULL && dodf->isClosed() == true)
 147                                 {
 148                                         _ERR("failed to open DODF");
 149
 150                                         delete dodf;
 151                                         dodf = NULL;
 152                                 }
 153                         }
 154                         else
 155                         {
 156                                 _ERR("[%02X] is not found. total [%d]", TAG_DODF, dataList.size());
 157                         }
 158                 }
 159
 160                 _DBG("dodf [%p]", dodf);
 161
 162                 return dodf;
 163         }
 164
 165 } /* namespace smartcard_service_api */