NFCTerminal.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 #include <cstdio>
  19 #include <cstring>
  20 #include <unistd.h>
  21 #include <sys/time.h>
  22 #include <glib.h>
  23
  24 /* local header */
  25 #include "smartcard-types.h"
  26 #include "Debug.h"
  27 #include "TerminalInterface.h"
  28 #include "NFCTerminal.h"
  29
  30 #ifndef EXPORT_API
  31 #define EXPORT_API __attribute__((visibility("default")))
  32 #endif
  33
  34 #define ASYNC
  35
  36 using namespace smartcard_service_api;
  37
  38 static const char *se_name = "eSE";
  39
  40 /* below functions will be called when dlopen or dlclose is called */
  41 void __attribute__ ((constructor)) lib_init()
  42 {
  43 }
  44
  45 void __attribute__ ((destructor)) lib_fini()
  46 {
  47 }
  48
  49 /* below three functions must be implemented */
  50 extern "C"
  51 {
  52 EXPORT_API const char *get_name()
  53 {
  54         return se_name;
  55 }
  56
  57 EXPORT_API void *create_instance()
  58 {
  59         return (void *)NFCTerminal::getInstance();
  60 }
  61
  62 EXPORT_API void destroy_instance(void *instance)
  63 {
  64         NFCTerminal *inst = (NFCTerminal *)instance;
  65
  66         if (inst == NFCTerminal::getInstance())
  67         {
  68                 inst->finalize();
  69         }
  70         else
  71         {
  72                 _ERR("instance is invalid : getInstance [%p], instance [%p]",
  73                                 NFCTerminal::getInstance(), instance);
  74         }
  75 }
  76 }
  77
  78 namespace smartcard_service_api
  79 {
  80         NFCTerminal::NFCTerminal() : Terminal(), seHandle(NULL),
  81                 present(false), referred(0)
  82         {
  83                 name = (char *)se_name;
  84
  85                 initialize();
  86         }
  87
  88         NFCTerminal *NFCTerminal::getInstance()
  89         {
  90                 static NFCTerminal instance;
  91
  92                 return &instance;
  93         }
  94
  95         NFCTerminal::~NFCTerminal()
  96         {
  97                 finalize();
  98         }
  99
 100         bool NFCTerminal::initialize()
 101         {
 102                 int ret;
 103
 104                 if (initialized == true)
 105                         return initialized;
 106
 107                 ret = nfc_manager_initialize_sync();
 108                 if (ret == NFC_ERROR_NONE)
 109                 {
 110                         initialized = true;
 111
 112                         if (open() == true) {
 113                                 present = true;
 114                                 close();
 115                         }
 116                 }
 117                 else
 118                 {
 119                         _ERR("net_nfc_initialize failed [%d]", ret);
 120                 }
 121
 122                 return initialized;
 123         }
 124
 125         void NFCTerminal::finalize()
 126         {
 127                 int ret;
 128
 129                 if (isClosed() == false) {
 130                         /* close now */
 131                         ret = nfc_se_close_secure_element(seHandle);
 132                         if (ret == NFC_ERROR_NONE) {
 133                                 seHandle = NULL;
 134                                 closed = true;
 135                                 referred = 0;
 136                         } else {
 137                                 _ERR("nfc_se_close_secure_element failed [%d]", ret);
 138                         }
 139                 }
 140
 141                 ret = nfc_manager_deinitialize();
 142                 if (ret == NFC_ERROR_NONE) {
 143                         initialized = false;
 144                 } else {
 145                         _ERR("nfc_manager_deinitialize failed [%d]", ret);
 146                 }
 147         }
 148
 149         bool NFCTerminal::open()
 150         {
 151                 int ret;
 152
 153                 _BEGIN();
 154
 155                 if (isInitialized()) {
 156                         if (referred == 0) {
 157                                 ret = nfc_se_open_secure_element(NFC_SE_TYPE_ESE,
 158                                         &seHandle);
 159                                 if (ret == NFC_ERROR_NONE) {
 160                                         closed = false;
 161                                         referred++;
 162                                 } else {
 163                                         _ERR("nfc_se_open_secure_element failed [%d]", ret);
 164                                 }
 165                         } else {
 166                                 referred++;
 167                         }
 168
 169                         _DBG("reference count [%d]", referred);
 170                 }
 171
 172                 _END();
 173
 174                 return (isClosed() == false);
 175         }
 176
 177         void NFCTerminal::close()
 178         {
 179                 int ret;
 180
 181                 _BEGIN();
 182
 183                 if (isInitialized())
 184                 {
 185                         if (referred <= 1) {
 186                                 ret = nfc_se_close_secure_element(seHandle);
 187                                 if (ret == NFC_ERROR_NONE) {
 188                                         seHandle = NULL;
 189                                         closed = true;
 190                                         referred = 0;
 191                                 } else {
 192                                         _ERR("nfc_se_close_secure_element failed [%d]", ret);
 193                                 }
 194                         } else {
 195                                 referred--;
 196                         }
 197
 198                         _DBG("reference count [%d]", referred);
 199                 }
 200
 201                 _END();
 202         }
 203
 204         int NFCTerminal::transmitSync(const ByteArray &command, ByteArray &response)
 205         {
 206                 int rv = SCARD_ERROR_NOT_INITIALIZED;
 207
 208                 _BEGIN();
 209
 210                 if (isClosed() == false)
 211                 {
 212                         if (command.size() > 0)
 213                         {
 214                                 uint8_t *resp = NULL;
 215                                 uint32_t resp_len;
 216
 217                                 rv = nfc_se_send_apdu(seHandle,
 218                                         (uint8_t *)command.getBuffer(),
 219                                         command.size(),
 220                                         &resp,
 221                                         &resp_len);
 222                                 if (rv == NFC_ERROR_NONE &&
 223                                         resp != NULL)
 224                                 {
 225                                         response.assign(resp, resp_len);
 226
 227                                         g_free(resp);
 228                                 }
 229                                 else
 230                                 {
 231                                         _ERR("net_nfc_send_apdu_sync failed, [%d]", rv);
 232                                 }
 233                         }
 234                         else
 235                         {
 236                                 _ERR("invalid command");
 237                         }
 238                 }
 239                 else
 240                 {
 241                         _ERR("closed...");
 242                 }
 243
 244                 _END();
 245
 246                 return rv;
 247         }
 248
 249         int NFCTerminal::getATRSync(ByteArray &atr)
 250         {
 251                 int rv = -1;
 252
 253                 _BEGIN();
 254
 255                 if (isClosed() == false)
 256                 {
 257                         uint8_t *temp = NULL;
 258                         uint32_t temp_len;
 259
 260                         rv = nfc_se_get_atr(seHandle, &temp, &temp_len);
 261                         if (rv == NFC_ERROR_NONE && temp != NULL)
 262                         {
 263                                 atr.assign(temp, temp_len);
 264                                 g_free(temp);
 265                         }
 266                         else
 267                         {
 268                                 _ERR("net_nfc_client_se_get_atr_sync failed");
 269                         }
 270                 }
 271                 else
 272                 {
 273                         _ERR("closed...");
 274                 }
 275
 276                 _END();
 277
 278                 return rv;
 279         }
 280 } /* namespace smartcard_service_api */