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/*
* Copyright (c) 2012, 2013 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* standard library header */
#include <cstdio>
#include <cstring>
#include <unistd.h>
#include <sys/time.h>
#include <glib.h>
/* local header */
#include "smartcard-types.h"
#include "Debug.h"
#include "TerminalInterface.h"
#include "NFCTerminal.h"
#ifndef EXPORT_API
#define EXPORT_API __attribute__((visibility("default")))
#endif
#define ASYNC
using namespace smartcard_service_api;
static const char *se_name = "eSE";
/* below functions will be called when dlopen or dlclose is called */
void __attribute__ ((constructor)) lib_init()
{
}
void __attribute__ ((destructor)) lib_fini()
{
}
/* below three functions must be implemented */
extern "C"
{
EXPORT_API const char *get_name()
{
return se_name;
}
EXPORT_API void *create_instance()
{
return (void *)NFCTerminal::getInstance();
}
EXPORT_API void destroy_instance(void *instance)
{
NFCTerminal *inst = (NFCTerminal *)instance;
if (inst == NFCTerminal::getInstance())
{
inst->finalize();
}
else
{
_ERR("instance is invalid : getInstance [%p], instance [%p]",
NFCTerminal::getInstance(), instance);
}
}
}
namespace smartcard_service_api
{
NFCTerminal::NFCTerminal() : Terminal(), seHandle(NULL),
present(false), referred(0)
{
name = (char *)se_name;
initialize();
}
NFCTerminal *NFCTerminal::getInstance()
{
static NFCTerminal instance;
return &instance;
}
NFCTerminal::~NFCTerminal()
{
finalize();
}
bool NFCTerminal::initialize()
{
int ret;
if (initialized == true)
return initialized;
ret = nfc_manager_initialize_sync();
if (ret == NFC_ERROR_NONE)
{
initialized = true;
if (open() == true) {
present = true;
close();
}
}
else
{
_ERR("net_nfc_initialize failed [%d]", ret);
}
return initialized;
}
void NFCTerminal::finalize()
{
int ret;
if (isClosed() == false) {
/* close now */
ret = nfc_se_close_secure_element(seHandle);
if (ret == NFC_ERROR_NONE) {
seHandle = NULL;
closed = true;
referred = 0;
} else {
_ERR("nfc_se_close_secure_element failed [%d]", ret);
}
}
ret = nfc_manager_deinitialize();
if (ret == NFC_ERROR_NONE) {
initialized = false;
} else {
_ERR("nfc_manager_deinitialize failed [%d]", ret);
}
}
bool NFCTerminal::open()
{
int ret;
_BEGIN();
if (isInitialized()) {
if (referred == 0) {
ret = nfc_se_open_secure_element(NFC_SE_TYPE_ESE,
&seHandle);
if (ret == NFC_ERROR_NONE) {
closed = false;
referred++;
} else {
_ERR("nfc_se_open_secure_element failed [%d]", ret);
}
} else {
referred++;
}
_DBG("reference count [%d]", referred);
}
_END();
return (isClosed() == false);
}
void NFCTerminal::close()
{
int ret;
_BEGIN();
if (isInitialized())
{
if (referred <= 1) {
ret = nfc_se_close_secure_element(seHandle);
if (ret == NFC_ERROR_NONE) {
seHandle = NULL;
closed = true;
referred = 0;
} else {
_ERR("nfc_se_close_secure_element failed [%d]", ret);
}
} else {
referred--;
}
_DBG("reference count [%d]", referred);
}
_END();
}
int NFCTerminal::transmitSync(const ByteArray &command, ByteArray &response)
{
int rv = SCARD_ERROR_NOT_INITIALIZED;
_BEGIN();
if (isClosed() == false)
{
if (command.size() > 0)
{
uint8_t *resp = NULL;
uint32_t resp_len;
rv = nfc_se_send_apdu(seHandle,
(uint8_t *)command.getBuffer(),
command.size(),
&resp,
&resp_len);
if (rv == NFC_ERROR_NONE &&
resp != NULL)
{
response.assign(resp, resp_len);
g_free(resp);
}
else
{
_ERR("net_nfc_send_apdu_sync failed, [%d]", rv);
}
}
else
{
_ERR("invalid command");
}
}
else
{
_ERR("closed...");
}
_END();
return rv;
}
int NFCTerminal::getATRSync(ByteArray &atr)
{
int rv = -1;
_BEGIN();
if (isClosed() == false)
{
uint8_t *temp = NULL;
uint32_t temp_len;
rv = nfc_se_get_atr(seHandle, &temp, &temp_len);
if (rv == NFC_ERROR_NONE && temp != NULL)
{
atr.assign(temp, temp_len);
g_free(temp);
}
else
{
_ERR("net_nfc_client_se_get_atr_sync failed");
}
}
else
{
_ERR("closed...");
}
_END();
return rv;
}
} /* namespace smartcard_service_api */
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