-// BcasCard.cpp: CBcasCard \83N\83\89\83X\82Ì\83C\83\93\83v\83\8a\83\81\83\93\83e\81[\83V\83\87\83\93\r
-//\r
-//////////////////////////////////////////////////////////////////////\r
-\r
-#include "W2L.h"\r
-#include "BCasCard.h"\r
-\r
-#ifdef _DEBUG\r
-#undef THIS_FILE\r
-static char THIS_FILE[]=__FILE__;\r
-#define new DEBUG_NEW\r
-#endif\r
-\r
-\r
-//#pragma comment(lib, "WinScard.lib")\r
-\r
-\r
-using std::auto_ptr;\r
-\r
-\r
-CBcasCard::CBcasCard()\r
- : m_hBcasCard(NULL)\r
- , m_bIsEstablish(false)\r
- , m_dwLastError(BCEC_NOERROR)\r
-{\r
- // \93à\95\94\8fó\91Ô\8f\89\8aú\89»\r
- memset(&m_BcasCardInfo, 0, sizeof(m_BcasCardInfo));\r
- memset(&m_EcmStatus, 0, sizeof(m_EcmStatus));\r
-\r
- // \83\8a\83\\81[\83X\83}\83l\81[\83W\83\83\83R\83\93\83e\83L\83X\83g\8am\97§\r
- if(::SCardEstablishContext(SCARD_SCOPE_USER, NULL, NULL, &m_ScardContext) != SCARD_S_SUCCESS){\r
- m_dwLastError = BCEC_NOTESTABLISHED;\r
- }\r
- else{\r
- m_bIsEstablish = true;\r
- \r
- // \83J\81[\83h\83\8a\81[\83_\97ñ\8b\93\r
- EnumCardReader();\r
- }\r
-}\r
-\r
-CBcasCard::~CBcasCard()\r
-{\r
- CloseCard();\r
-\r
- // \83\8a\83\\81[\83X\83}\83l\81[\83W\83\83\83R\83\93\83e\83L\83X\83g\82Ì\8aJ\95ú\r
- if(m_bIsEstablish)::SCardReleaseContext(m_ScardContext);\r
-}\r
-\r
-const DWORD CBcasCard::GetCardReaderNum(void) const\r
-{\r
- // \83J\81[\83h\83\8a\81[\83_\81[\90\94\82ð\95Ô\82·\r
- return m_CardReaderArray.size();\r
-}\r
-\r
-LPCTSTR CBcasCard::GetCardReaderName(const DWORD dwIndex) const\r
-{\r
- // \83J\81[\83h\83\8a\81[\83_\81[\96¼\82ð\95Ô\82·\r
- return (dwIndex < GetCardReaderNum())? m_CardReaderArray[dwIndex].c_str() : NULL;\r
-}\r
-\r
-const bool CBcasCard::OpenCard(LPCTSTR lpszReader)\r
-{\r
- // \83\8a\83\\81[\83X\83}\83l\81[\83W\83\83\83R\83\93\83e\83L\83X\83g\82Ì\8am\97§\r
- if(!m_bIsEstablish){\r
- m_dwLastError = BCEC_NOTESTABLISHED;\r
- return false;\r
- }\r
- \r
- // \88ê\92U\83N\83\8d\81[\83Y\82·\82é\r
- CloseCard();\r
-\r
-\r
- if(lpszReader){\r
- // \8ew\92è\82³\82ê\82½\83J\81[\83h\83\8a\81[\83_\82É\91Î\82µ\82Ä\83I\81[\83v\83\93\82ð\8e\8e\82Ý\82é\r
- DWORD dwActiveProtocol = SCARD_PROTOCOL_UNDEFINED;\r
- \r
- if(::SCardConnect(m_ScardContext, lpszReader, SCARD_SHARE_SHARED, SCARD_PROTOCOL_T1, &m_hBcasCard, &dwActiveProtocol) != SCARD_S_SUCCESS){\r
- m_dwLastError = BCEC_CARDOPENERROR;\r
- return false;\r
- }\r
-\r
- if(dwActiveProtocol != SCARD_PROTOCOL_T1){\r
- CloseCard();\r
- m_dwLastError = BCEC_CARDOPENERROR;\r
- return false;\r
- }\r
- }\r
- else{\r
- // \91S\82Ä\82Ì\83J\81[\83h\83\8a\81[\83_\82É\91Î\82µ\82Ä\83I\81[\83v\83\93\82ð\8e\8e\82Ý\82é\r
- DWORD dwIndex = 0UL;\r
- \r
- while(GetCardReaderName(dwIndex)){\r
- if(OpenCard(GetCardReaderName(dwIndex++)))return true; \r
- }\r
- \r
- return false;\r
- }\r
-\r
- // \83J\81[\83h\8f\89\8aú\89»\r
- if(!InitialSetting())return false;\r
-\r
- m_dwLastError = BCEC_NOERROR;\r
-\r
- return true;\r
-}\r
-\r
-void CBcasCard::CloseCard(void)\r
-{\r
- // \83J\81[\83h\82ð\83N\83\8d\81[\83Y\82·\82é\r
- if(m_hBcasCard){\r
- ::SCardDisconnect(m_hBcasCard, SCARD_LEAVE_CARD);\r
- m_hBcasCard = NULL;\r
- }\r
-}\r
-\r
-const DWORD CBcasCard::GetLastError(void) const\r
-{\r
- // \8dÅ\8cã\82É\94\90¶\82µ\82½\83G\83\89\81[\82ð\95Ô\82·\r
- return m_dwLastError;\r
-}\r
-\r
-const bool CBcasCard::EnumCardReader(void)\r
-{\r
- // \83J\81[\83h\83\8a\81[\83_\82ð\97ñ\8b\93\82·\82é\r
- DWORD dwBuffSize = 0UL;\r
- \r
- switch(::SCardListReaders(m_ScardContext, NULL, NULL, &dwBuffSize)){\r
- case SCARD_E_NO_READERS_AVAILABLE :\r
- // \83J\81[\83h\83\8a\81[\83_\82ª\8c©\82Â\82©\82ç\82È\82¢\r
- m_dwLastError = BCEC_NOCARDREADERS;\r
- return false;\r
-\r
- case SCARD_S_SUCCESS :\r
- // \83o\83b\83t\83@\83T\83C\83Y\8eæ\93¾\90¬\8c÷\r
- break;\r
- \r
- default:\r
- // \83G\83\89\81[\r
- m_dwLastError = BCEC_INTERNALERROR; \r
- return false;\r
- }\r
-\r
- // \83o\83b\83t\83@\8am\95Û\r
- auto_ptr<TCHAR> szReaders(new TCHAR[dwBuffSize]);\r
-\r
- switch(::SCardListReaders(m_ScardContext, NULL, szReaders.get(), &dwBuffSize)){\r
- case SCARD_E_NO_READERS_AVAILABLE :\r
- // \83J\81[\83h\83\8a\81[\83_\82ª\8c©\82Â\82©\82ç\82È\82¢\r
- m_dwLastError = BCEC_NOCARDREADERS;\r
- return false;\r
-\r
- case SCARD_S_SUCCESS : {\r
- // \83J\81[\83h\83\8a\81[\83_\96¼\95Û\91¶\r
- LPTSTR lpszCurReader = szReaders.get();\r
- m_CardReaderArray.clear();\r
- \r
- while(*lpszCurReader){\r
- m_CardReaderArray.push_back(lpszCurReader);\r
- lpszCurReader += m_CardReaderArray.back().length() + 1UL;\r
- }\r
- \r
- break;\r
- }\r
- \r
- default:\r
- // \83G\83\89\81[\r
- m_dwLastError = BCEC_INTERNALERROR; \r
- return false;\r
- }\r
-\r
- m_dwLastError = BCEC_NOERROR;\r
-\r
- return true;\r
-}\r
-\r
-const bool CBcasCard::TransmitCommand(const BYTE *pSendData, const DWORD dwSendSize, BYTE *pRecvData, const DWORD dwMaxRecv, DWORD *pdwRecvSize)\r
-{\r
- DWORD dwRecvSize = dwMaxRecv;\r
-\r
- // \83f\81[\83^\91\97\8eó\90M\r
- DWORD dwReturn = ::SCardTransmit(m_hBcasCard, SCARD_PCI_T1, pSendData, dwSendSize, NULL, pRecvData, &dwRecvSize);\r
- \r
- // \8eó\90M\83T\83C\83Y\8ai\94[\r
- if(pdwRecvSize)*pdwRecvSize = dwRecvSize;\r
-\r
- return (dwReturn == SCARD_S_SUCCESS)? true : false;\r
-}\r
-\r
-const bool CBcasCard::InitialSetting(void)\r
-{\r
- static const BYTE InitSettingCmd[] = {0x90U, 0x30U, 0x00U, 0x00U, 0x00U};\r
-\r
- // \81uInitial Setting Conditions Command\81v\82ð\8f\88\97\9d\82·\82é\r
- if(!m_hBcasCard){\r
- m_dwLastError = BCEC_CARDNOTOPEN;\r
- return false;\r
- }\r
-\r
- // \83o\83b\83t\83@\8f\80\94õ\r
- DWORD dwRecvSize = 0UL;\r
- BYTE RecvData[1024];\r
- memset(RecvData, 0, sizeof(RecvData));\r
- \r
- // \83R\83}\83\93\83h\91\97\90M\r
- if(!TransmitCommand(InitSettingCmd, sizeof(InitSettingCmd), RecvData, sizeof(RecvData), &dwRecvSize)){\r
- m_dwLastError = BCEC_TRANSMITERROR;\r
- return false;\r
- }\r
-\r
- if(dwRecvSize < 57UL){\r
- m_dwLastError = BCEC_TRANSMITERROR;\r
- return false; \r
- }\r
-\r
- // \83\8c\83X\83|\83\93\83X\89ð\90Í\r
- memcpy(m_BcasCardInfo.BcasCardID, &RecvData[8], 6UL); // +8 Card ID\r
- memcpy(m_BcasCardInfo.SystemKey, &RecvData[16], 32UL); // +16 Descrambling system key\r
- memcpy(m_BcasCardInfo.InitialCbc, &RecvData[48], 8UL); // +48 Descrambler CBC initial value\r
-\r
- // ECM\83X\83e\81[\83^\83X\8f\89\8aú\89»\r
- memset(&m_EcmStatus, 0, sizeof(m_EcmStatus));\r
-\r
- return true;\r
-}\r
-\r
-const BYTE * CBcasCard::GetBcasCardID(void)\r
-{\r
- // Card ID \82ð\95Ô\82·\r
- if(!m_hBcasCard){\r
- m_dwLastError = BCEC_CARDNOTOPEN;\r
- return NULL;\r
- }\r
- \r
- m_dwLastError = BCEC_NOERROR;\r
- \r
- return m_BcasCardInfo.BcasCardID;\r
-}\r
-\r
-const BYTE * CBcasCard::GetInitialCbc(void)\r
-{\r
- // Descrambler CBC Initial Value \82ð\95Ô\82·\r
- if(!m_hBcasCard){\r
- m_dwLastError = BCEC_CARDNOTOPEN;\r
- return NULL;\r
- }\r
- \r
- m_dwLastError = BCEC_NOERROR;\r
- \r
- return m_BcasCardInfo.InitialCbc;\r
-}\r
-\r
-const BYTE * CBcasCard::GetSystemKey(void)\r
-{\r
- // Descrambling System Key \82ð\95Ô\82·\r
- if(!m_hBcasCard){\r
- m_dwLastError = BCEC_CARDNOTOPEN;\r
- return NULL;\r
- }\r
- \r
- m_dwLastError = BCEC_NOERROR;\r
- \r
- return m_BcasCardInfo.SystemKey;\r
-}\r
-\r
-const BYTE * CBcasCard::GetKsFromEcm(const BYTE *pEcmData, const DWORD dwEcmSize)\r
-{\r
- static const BYTE EcmReceiveCmd[] = {0x90U, 0x34U, 0x00U, 0x00U};\r
-\r
- // \81uECM Receive Command\81v\82ð\8f\88\97\9d\82·\82é\r
- if(!m_hBcasCard){\r
- m_dwLastError = BCEC_CARDNOTOPEN;\r
- return NULL;\r
- }\r
-\r
- // ECM\83T\83C\83Y\82ð\83`\83F\83b\83N\r
- if(!pEcmData || (dwEcmSize < 30UL) || (dwEcmSize > 256UL)){\r
- m_dwLastError = BCEC_BADARGUMENT;\r
- return NULL;\r
- }\r
-\r
- // \83L\83\83\83b\83V\83\85\82ð\83`\83F\83b\83N\82·\82é\r
- if(!StoreEcmData(pEcmData, dwEcmSize)){\r
- // ECM\82ª\93¯\88ê\82Ì\8fê\8d\87\82Í\83L\83\83\83b\83V\83\85\8dÏ\82ÝKs\82ð\95Ô\82·\r
- m_dwLastError = BCEC_NOERROR;\r
- return m_EcmStatus.KsData;\r
- }\r
-\r
- // \83o\83b\83t\83@\8f\80\94õ\r
- DWORD dwRecvSize = 0UL;\r
- BYTE SendData[1024];\r
- BYTE RecvData[1024];\r
- memset(RecvData, 0, sizeof(RecvData));\r
-\r
- // \83R\83}\83\93\83h\8d\\92z\r
- memcpy(SendData, EcmReceiveCmd, sizeof(EcmReceiveCmd)); // CLA, INS, P1, P2\r
- SendData[sizeof(EcmReceiveCmd)] = (BYTE)dwEcmSize; // COMMAND DATA LENGTH\r
- memcpy(&SendData[sizeof(EcmReceiveCmd) + 1], pEcmData, dwEcmSize); // ECM\r
- SendData[sizeof(EcmReceiveCmd) + dwEcmSize + 1] = 0x00U; // RESPONSE DATA LENGTH\r
-\r
- // \83R\83}\83\93\83h\91\97\90M\r
- if(!TransmitCommand(SendData, sizeof(EcmReceiveCmd) + dwEcmSize + 2UL, RecvData, sizeof(RecvData), &dwRecvSize)){\r
- memset(&m_EcmStatus, 0, sizeof(m_EcmStatus));\r
- m_dwLastError = BCEC_TRANSMITERROR;\r
- return NULL;\r
- }\r
-\r
- // \83T\83C\83Y\83`\83F\83b\83N\r
- if(dwRecvSize != 25UL){\r
- memset(&m_EcmStatus, 0, sizeof(m_EcmStatus));\r
- m_dwLastError = BCEC_TRANSMITERROR;\r
- return NULL;\r
- } \r
- \r
- // \83\8c\83X\83|\83\93\83X\89ð\90Í\r
- memcpy(m_EcmStatus.KsData, &RecvData[6], sizeof(m_EcmStatus.KsData));\r
-\r
- // \83\8a\83^\81[\83\93\83R\81[\83h\89ð\90Í\r
- switch(((WORD)RecvData[4] << 8) | (WORD)RecvData[5]){\r
- // Purchased: Viewing\r
- case 0x0200U : // Payment-deferred PPV\r
- case 0x0400U : // Prepaid PPV\r
- case 0x0800U : // Tier\r
- m_dwLastError = BCEC_NOERROR;\r
- return m_EcmStatus.KsData;\r
- \r
- // \8fã\8bL\88È\8aO(\8e\8b\92®\95s\89Â)\r
- default :\r
- m_dwLastError = BCEC_ECMREFUSED;\r
- return NULL;\r
- }\r
-}\r
-\r
-const bool CBcasCard::StoreEcmData(const BYTE *pEcmData, const DWORD dwEcmSize)\r
-{\r
- bool bUpdate = false;\r
- \r
- // ECM\83f\81[\83^\94ä\8ar\r
- if(m_EcmStatus.dwLastEcmSize != dwEcmSize){\r
- // \83T\83C\83Y\82ª\95Ï\89»\82µ\82½\r
- bUpdate = true;\r
- }\r
- else{\r
- // \83T\83C\83Y\82ª\93¯\82¶\8fê\8d\87\82Í\83f\81[\83^\82ð\83`\83F\83b\83N\82·\82é\r
- for(DWORD dwPos = 0UL ; dwPos < dwEcmSize ; dwPos++){\r
- if(pEcmData[dwPos] != m_EcmStatus.LastEcmData[dwPos]){\r
- // \83f\81[\83^\82ª\95s\88ê\92v\r
- bUpdate = true;\r
- break;\r
- } \r
- }\r
- }\r
-\r
- // ECM\83f\81[\83^\82ð\95Û\91¶\82·\82é\r
- if(bUpdate){\r
- m_EcmStatus.dwLastEcmSize = dwEcmSize;\r
- memcpy(m_EcmStatus.LastEcmData, pEcmData, dwEcmSize);\r
- }\r
-\r
- return bUpdate;\r
-}\r
+// BcasCard.cpp: CBcasCard クラスのインプリメンテーション
+//
+//////////////////////////////////////////////////////////////////////
+
+#include "W2L.h"
+#include "BCasCard.h"
+
+#ifdef _DEBUG
+#undef THIS_FILE
+static char THIS_FILE[]=__FILE__;
+#define new DEBUG_NEW
+#endif
+
+
+//#pragma comment(lib, "WinScard.lib")
+
+
+using std::auto_ptr;
+
+
+CBcasCard::CBcasCard()
+ : m_hBcasCard(NULL)
+ , m_bIsEstablish(false)
+ , m_dwLastError(BCEC_NOERROR)
+{
+ // 内部状態初期化
+ memset(&m_BcasCardInfo, 0, sizeof(m_BcasCardInfo));
+ memset(&m_EcmStatus, 0, sizeof(m_EcmStatus));
+
+ // リソースマネージャコンテキスト確立
+ if(::SCardEstablishContext(SCARD_SCOPE_USER, NULL, NULL, &m_ScardContext) != SCARD_S_SUCCESS){
+ m_dwLastError = BCEC_NOTESTABLISHED;
+ }
+ else{
+ m_bIsEstablish = true;
+
+ // カードリーダ列挙
+ EnumCardReader();
+ }
+}
+
+CBcasCard::~CBcasCard()
+{
+ CloseCard();
+
+ // リソースマネージャコンテキストの開放
+ if(m_bIsEstablish)::SCardReleaseContext(m_ScardContext);
+}
+
+const DWORD CBcasCard::GetCardReaderNum(void) const
+{
+ // カードリーダー数を返す
+ return m_CardReaderArray.size();
+}
+
+LPCTSTR CBcasCard::GetCardReaderName(const DWORD dwIndex) const
+{
+ // カードリーダー名を返す
+ return (dwIndex < GetCardReaderNum())? m_CardReaderArray[dwIndex].c_str() : NULL;
+}
+
+const bool CBcasCard::OpenCard(LPCTSTR lpszReader)
+{
+ // リソースマネージャコンテキストの確立
+ if(!m_bIsEstablish){
+ m_dwLastError = BCEC_NOTESTABLISHED;
+ return false;
+ }
+
+ // 一旦クローズする
+ CloseCard();
+
+
+ if(lpszReader){
+ // 指定されたカードリーダに対してオープンを試みる
+ DWORD dwActiveProtocol = SCARD_PROTOCOL_UNDEFINED;
+
+ if(::SCardConnect(m_ScardContext, lpszReader, SCARD_SHARE_SHARED, SCARD_PROTOCOL_T1, &m_hBcasCard, &dwActiveProtocol) != SCARD_S_SUCCESS){
+ m_dwLastError = BCEC_CARDOPENERROR;
+ return false;
+ }
+
+ if(dwActiveProtocol != SCARD_PROTOCOL_T1){
+ CloseCard();
+ m_dwLastError = BCEC_CARDOPENERROR;
+ return false;
+ }
+ }
+ else{
+ // 全てのカードリーダに対してオープンを試みる
+ DWORD dwIndex = 0UL;
+
+ while(GetCardReaderName(dwIndex)){
+ if(OpenCard(GetCardReaderName(dwIndex++)))return true;
+ }
+
+ return false;
+ }
+
+ // カード初期化
+ if(!InitialSetting())return false;
+
+ m_dwLastError = BCEC_NOERROR;
+
+ return true;
+}
+
+void CBcasCard::CloseCard(void)
+{
+ // カードをクローズする
+ if(m_hBcasCard){
+ ::SCardDisconnect(m_hBcasCard, SCARD_LEAVE_CARD);
+ m_hBcasCard = NULL;
+ }
+}
+
+const DWORD CBcasCard::GetLastError(void) const
+{
+ // 最後に発生したエラーを返す
+ return m_dwLastError;
+}
+
+const bool CBcasCard::EnumCardReader(void)
+{
+ // カードリーダを列挙する
+ DWORD dwBuffSize = 0UL;
+
+ switch(::SCardListReaders(m_ScardContext, NULL, NULL, &dwBuffSize)){
+ case SCARD_E_NO_READERS_AVAILABLE :
+ // カードリーダが見つからない
+ m_dwLastError = BCEC_NOCARDREADERS;
+ return false;
+
+ case SCARD_S_SUCCESS :
+ // バッファサイズ取得成功
+ break;
+
+ default:
+ // エラー
+ m_dwLastError = BCEC_INTERNALERROR;
+ return false;
+ }
+
+ // バッファ確保
+ // auto_ptr<TCHAR> cannot be used for array
+ // auto_ptr<TCHAR> szReaders(new TCHAR[dwBuffSize]);
+ std::string szReaders;
+ szReaders.resize(dwBuffSize);
+
+ switch(::SCardListReaders(m_ScardContext, NULL, (char*)szReaders.data(), &dwBuffSize)){
+ case SCARD_E_NO_READERS_AVAILABLE :
+ // カードリーダが見つからない
+ m_dwLastError = BCEC_NOCARDREADERS;
+ return false;
+
+ case SCARD_S_SUCCESS : {
+ // カードリーダ名保存
+ LPCTSTR lpszCurReader = szReaders.data();
+ m_CardReaderArray.clear();
+
+ while(*lpszCurReader){
+ m_CardReaderArray.push_back(lpszCurReader);
+ lpszCurReader += m_CardReaderArray.back().length() + 1UL;
+ }
+
+ break;
+ }
+
+ default:
+ // エラー
+ m_dwLastError = BCEC_INTERNALERROR;
+ return false;
+ }
+
+ m_dwLastError = BCEC_NOERROR;
+
+ return true;
+}
+
+const bool CBcasCard::TransmitCommand(const BYTE *pSendData, const DWORD dwSendSize, BYTE *pRecvData, const DWORD dwMaxRecv, DWORD *pdwRecvSize)
+{
+ DWORD dwRecvSize = dwMaxRecv;
+
+ // データ送受信
+ DWORD dwReturn = ::SCardTransmit(m_hBcasCard, SCARD_PCI_T1, pSendData, dwSendSize, NULL, pRecvData, &dwRecvSize);
+
+ // 受信サイズ格納
+ if(pdwRecvSize)*pdwRecvSize = dwRecvSize;
+
+ return (dwReturn == SCARD_S_SUCCESS)? true : false;
+}
+
+const bool CBcasCard::InitialSetting(void)
+{
+ static const BYTE InitSettingCmd[] = {0x90U, 0x30U, 0x00U, 0x00U, 0x00U};
+
+ // 「Initial Setting Conditions Command」を処理する
+ if(!m_hBcasCard){
+ m_dwLastError = BCEC_CARDNOTOPEN;
+ return false;
+ }
+
+ // バッファ準備
+ DWORD dwRecvSize = 0UL;
+ BYTE RecvData[1024];
+ memset(RecvData, 0, sizeof(RecvData));
+
+ // コマンド送信
+ if(!TransmitCommand(InitSettingCmd, sizeof(InitSettingCmd), RecvData, sizeof(RecvData), &dwRecvSize)){
+ m_dwLastError = BCEC_TRANSMITERROR;
+ return false;
+ }
+
+ if(dwRecvSize < 57UL){
+ m_dwLastError = BCEC_TRANSMITERROR;
+ return false;
+ }
+
+ // レスポンス解析
+ memcpy(m_BcasCardInfo.BcasCardID, &RecvData[8], 6UL); // +8 Card ID
+ memcpy(m_BcasCardInfo.SystemKey, &RecvData[16], 32UL); // +16 Descrambling system key
+ memcpy(m_BcasCardInfo.InitialCbc, &RecvData[48], 8UL); // +48 Descrambler CBC initial value
+
+ // ECMステータス初期化
+ memset(&m_EcmStatus, 0, sizeof(m_EcmStatus));
+
+ return true;
+}
+
+const BYTE * CBcasCard::GetBcasCardID(void)
+{
+ // Card ID を返す
+ if(!m_hBcasCard){
+ m_dwLastError = BCEC_CARDNOTOPEN;
+ return NULL;
+ }
+
+ m_dwLastError = BCEC_NOERROR;
+
+ return m_BcasCardInfo.BcasCardID;
+}
+
+const BYTE * CBcasCard::GetInitialCbc(void)
+{
+ // Descrambler CBC Initial Value を返す
+ if(!m_hBcasCard){
+ m_dwLastError = BCEC_CARDNOTOPEN;
+ return NULL;
+ }
+
+ m_dwLastError = BCEC_NOERROR;
+
+ return m_BcasCardInfo.InitialCbc;
+}
+
+const BYTE * CBcasCard::GetSystemKey(void)
+{
+ // Descrambling System Key を返す
+ if(!m_hBcasCard){
+ m_dwLastError = BCEC_CARDNOTOPEN;
+ return NULL;
+ }
+
+ m_dwLastError = BCEC_NOERROR;
+
+ return m_BcasCardInfo.SystemKey;
+}
+
+const BYTE * CBcasCard::GetKsFromEcm(const BYTE *pEcmData, const DWORD dwEcmSize)
+{
+ static const BYTE EcmReceiveCmd[] = {0x90U, 0x34U, 0x00U, 0x00U};
+
+ // 「ECM Receive Command」を処理する
+ if(!m_hBcasCard){
+ m_dwLastError = BCEC_CARDNOTOPEN;
+ return NULL;
+ }
+
+ // ECMサイズをチェック
+ if(!pEcmData || (dwEcmSize < 30UL) || (dwEcmSize > 256UL)){
+ m_dwLastError = BCEC_BADARGUMENT;
+ return NULL;
+ }
+
+ // キャッシュをチェックする
+ if(!StoreEcmData(pEcmData, dwEcmSize)){
+ // ECMが同一の場合はキャッシュ済みKsを返す
+ m_dwLastError = BCEC_NOERROR;
+ return m_EcmStatus.KsData;
+ }
+
+ // バッファ準備
+ DWORD dwRecvSize = 0UL;
+ BYTE SendData[1024];
+ BYTE RecvData[1024];
+ memset(RecvData, 0, sizeof(RecvData));
+
+ // コマンド構築
+ memcpy(SendData, EcmReceiveCmd, sizeof(EcmReceiveCmd)); // CLA, INS, P1, P2
+ SendData[sizeof(EcmReceiveCmd)] = (BYTE)dwEcmSize; // COMMAND DATA LENGTH
+ memcpy(&SendData[sizeof(EcmReceiveCmd) + 1], pEcmData, dwEcmSize); // ECM
+ SendData[sizeof(EcmReceiveCmd) + dwEcmSize + 1] = 0x00U; // RESPONSE DATA LENGTH
+
+ // コマンド送信
+ if(!TransmitCommand(SendData, sizeof(EcmReceiveCmd) + dwEcmSize + 2UL, RecvData, sizeof(RecvData), &dwRecvSize)){
+ memset(&m_EcmStatus, 0, sizeof(m_EcmStatus));
+ m_dwLastError = BCEC_TRANSMITERROR;
+ return NULL;
+ }
+
+ // サイズチェック
+ if(dwRecvSize != 25UL){
+ memset(&m_EcmStatus, 0, sizeof(m_EcmStatus));
+ m_dwLastError = BCEC_TRANSMITERROR;
+ return NULL;
+ }
+
+ // レスポンス解析
+ memcpy(m_EcmStatus.KsData, &RecvData[6], sizeof(m_EcmStatus.KsData));
+
+ // リターンコード解析
+ switch(((WORD)RecvData[4] << 8) | (WORD)RecvData[5]){
+ // Purchased: Viewing
+ case 0x0200U : // Payment-deferred PPV
+ case 0x0400U : // Prepaid PPV
+ case 0x0800U : // Tier
+ m_dwLastError = BCEC_NOERROR;
+ return m_EcmStatus.KsData;
+
+ // 上記以外(視聴不可)
+ default :
+ m_dwLastError = BCEC_ECMREFUSED;
+ return NULL;
+ }
+}
+
+const bool CBcasCard::StoreEcmData(const BYTE *pEcmData, const DWORD dwEcmSize)
+{
+ bool bUpdate = false;
+
+ // ECMデータ比較
+ if(m_EcmStatus.dwLastEcmSize != dwEcmSize){
+ // サイズが変化した
+ bUpdate = true;
+ }
+ else{
+ // サイズが同じ場合はデータをチェックする
+ for(DWORD dwPos = 0UL ; dwPos < dwEcmSize ; dwPos++){
+ if(pEcmData[dwPos] != m_EcmStatus.LastEcmData[dwPos]){
+ // データが不一致
+ bUpdate = true;
+ break;
+ }
+ }
+ }
+
+ // ECMデータを保存する
+ if(bUpdate){
+ m_EcmStatus.dwLastEcmSize = dwEcmSize;
+ memcpy(m_EcmStatus.LastEcmData, pEcmData, dwEcmSize);
+ }
+
+ return bUpdate;
+}
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