long CardBeginTransaction(SCARDHANDLE hCard) { return SCardBeginTransaction(hCard); }
static void ContextThread(LPVOID newContext) { SCONTEXT * threadContext = (SCONTEXT *) newContext; int32_t filedes = threadContext->dwClientID; Log3(PCSC_LOG_DEBUG, "Thread is started: dwClientID=%d, threadContext @%p", threadContext->dwClientID, threadContext); while (1) { struct rxHeader header; int32_t ret = MessageReceive(&header, sizeof(header), filedes); if (ret != SCARD_S_SUCCESS) { /* Clean up the dead client */ Log2(PCSC_LOG_DEBUG, "Client die: %d", filedes); EHTryToUnregisterClientForEvent(filedes); goto exit; } if ((header.command > CMD_ENUM_FIRST) && (header.command < CMD_ENUM_LAST)) Log3(PCSC_LOG_DEBUG, "Received command: %s from client %d", CommandsText[header.command], filedes); switch (header.command) { /* pcsc-lite client/server protocol version */ case CMD_VERSION: { struct version_struct veStr; READ_BODY(veStr) Log3(PCSC_LOG_DEBUG, "Client is protocol version %d:%d", veStr.major, veStr.minor); veStr.rv = SCARD_S_SUCCESS; /* client and server use different protocol */ if ((veStr.major != PROTOCOL_VERSION_MAJOR) || (veStr.minor != PROTOCOL_VERSION_MINOR)) { Log3(PCSC_LOG_CRITICAL, "Client protocol is %d:%d", veStr.major, veStr.minor); Log3(PCSC_LOG_CRITICAL, "Server protocol is %d:%d", PROTOCOL_VERSION_MAJOR, PROTOCOL_VERSION_MINOR); veStr.rv = SCARD_E_NO_SERVICE; } /* set the server protocol version */ veStr.major = PROTOCOL_VERSION_MAJOR; veStr.minor = PROTOCOL_VERSION_MINOR; /* send back the response */ WRITE_BODY(veStr) } break; case CMD_GET_READERS_STATE: { /* nothing to read */ #ifdef USE_USB /* wait until all readers are ready */ RFWaitForReaderInit(); #endif /* dump the readers state */ ret = MessageSend(readerStates, sizeof(readerStates), filedes); } break; case CMD_WAIT_READER_STATE_CHANGE: { struct wait_reader_state_change waStr; READ_BODY(waStr) /* add the client fd to the list */ EHRegisterClientForEvent(filedes); /* We do not send anything here. * Either the client will timeout or the server will * answer if an event occurs */ } break; case CMD_STOP_WAITING_READER_STATE_CHANGE: { struct wait_reader_state_change waStr; READ_BODY(waStr) /* add the client fd to the list */ waStr.rv = EHUnregisterClientForEvent(filedes); WRITE_BODY(waStr) } break; case SCARD_ESTABLISH_CONTEXT: { struct establish_struct esStr; SCARDCONTEXT hContext; READ_BODY(esStr) hContext = esStr.hContext; esStr.rv = SCardEstablishContext(esStr.dwScope, 0, 0, &hContext); esStr.hContext = hContext; if (esStr.rv == SCARD_S_SUCCESS) esStr.rv = MSGAddContext(esStr.hContext, threadContext); WRITE_BODY(esStr) } break; case SCARD_RELEASE_CONTEXT: { struct release_struct reStr; READ_BODY(reStr) reStr.rv = SCardReleaseContext(reStr.hContext); if (reStr.rv == SCARD_S_SUCCESS) reStr.rv = MSGRemoveContext(reStr.hContext, threadContext); WRITE_BODY(reStr) } break; case SCARD_CONNECT: { struct connect_struct coStr; SCARDHANDLE hCard; DWORD dwActiveProtocol; READ_BODY(coStr) hCard = coStr.hCard; dwActiveProtocol = coStr.dwActiveProtocol; coStr.rv = SCardConnect(coStr.hContext, coStr.szReader, coStr.dwShareMode, coStr.dwPreferredProtocols, &hCard, &dwActiveProtocol); coStr.hCard = hCard; coStr.dwActiveProtocol = dwActiveProtocol; if (coStr.rv == SCARD_S_SUCCESS) coStr.rv = MSGAddHandle(coStr.hContext, coStr.hCard, threadContext); WRITE_BODY(coStr) } break; case SCARD_RECONNECT: { struct reconnect_struct rcStr; DWORD dwActiveProtocol; READ_BODY(rcStr) if (MSGCheckHandleAssociation(rcStr.hCard, threadContext)) goto exit; rcStr.rv = SCardReconnect(rcStr.hCard, rcStr.dwShareMode, rcStr.dwPreferredProtocols, rcStr.dwInitialization, &dwActiveProtocol); rcStr.dwActiveProtocol = dwActiveProtocol; WRITE_BODY(rcStr) } break; case SCARD_DISCONNECT: { struct disconnect_struct diStr; READ_BODY(diStr) if (MSGCheckHandleAssociation(diStr.hCard, threadContext)) goto exit; diStr.rv = SCardDisconnect(diStr.hCard, diStr.dwDisposition); if (SCARD_S_SUCCESS == diStr.rv) diStr.rv = MSGRemoveHandle(diStr.hCard, threadContext); WRITE_BODY(diStr) } break; case SCARD_BEGIN_TRANSACTION: { struct begin_struct beStr; READ_BODY(beStr) if (MSGCheckHandleAssociation(beStr.hCard, threadContext)) goto exit; beStr.rv = SCardBeginTransaction(beStr.hCard); WRITE_BODY(beStr) } break; case SCARD_END_TRANSACTION: { struct end_struct enStr; READ_BODY(enStr) if (MSGCheckHandleAssociation(enStr.hCard, threadContext)) goto exit; enStr.rv = SCardEndTransaction(enStr.hCard, enStr.dwDisposition); WRITE_BODY(enStr) } break; case SCARD_CANCEL: { struct cancel_struct caStr; SCONTEXT * psTargetContext = NULL; READ_BODY(caStr) /* find the client */ (void)pthread_mutex_lock(&contextsList_lock); psTargetContext = (SCONTEXT *) list_seek(&contextsList, &caStr.hContext); (void)pthread_mutex_unlock(&contextsList_lock); if (psTargetContext != NULL) { uint32_t fd = psTargetContext->dwClientID; caStr.rv = MSGSignalClient(fd, SCARD_E_CANCELLED); } else caStr.rv = SCARD_E_INVALID_HANDLE; WRITE_BODY(caStr) } break; case SCARD_STATUS: { struct status_struct stStr; READ_BODY(stStr) if (MSGCheckHandleAssociation(stStr.hCard, threadContext)) goto exit; /* only hCard and return value are used by the client */ stStr.rv = SCardStatus(stStr.hCard, NULL, NULL, NULL, NULL, 0, NULL); WRITE_BODY(stStr) } break; case SCARD_TRANSMIT: { struct transmit_struct trStr; unsigned char pbSendBuffer[MAX_BUFFER_SIZE_EXTENDED]; unsigned char pbRecvBuffer[MAX_BUFFER_SIZE_EXTENDED]; SCARD_IO_REQUEST ioSendPci; SCARD_IO_REQUEST ioRecvPci; DWORD cbRecvLength; READ_BODY(trStr) if (MSGCheckHandleAssociation(trStr.hCard, threadContext)) goto exit; /* avoids buffer overflow */ if ((trStr.pcbRecvLength > sizeof(pbRecvBuffer)) || (trStr.cbSendLength > sizeof(pbSendBuffer))) goto buffer_overflow; /* read sent buffer */ ret = MessageReceive(pbSendBuffer, trStr.cbSendLength, filedes); if (ret != SCARD_S_SUCCESS) { Log2(PCSC_LOG_DEBUG, "Client die: %d", filedes); goto exit; } ioSendPci.dwProtocol = trStr.ioSendPciProtocol; ioSendPci.cbPciLength = trStr.ioSendPciLength; ioRecvPci.dwProtocol = trStr.ioRecvPciProtocol; ioRecvPci.cbPciLength = trStr.ioRecvPciLength; cbRecvLength = trStr.pcbRecvLength; trStr.rv = SCardTransmit(trStr.hCard, &ioSendPci, pbSendBuffer, trStr.cbSendLength, &ioRecvPci, pbRecvBuffer, &cbRecvLength); trStr.ioSendPciProtocol = ioSendPci.dwProtocol; trStr.ioSendPciLength = ioSendPci.cbPciLength; trStr.ioRecvPciProtocol = ioRecvPci.dwProtocol; trStr.ioRecvPciLength = ioRecvPci.cbPciLength; trStr.pcbRecvLength = cbRecvLength; WRITE_BODY(trStr) /* write received buffer */ if (SCARD_S_SUCCESS == trStr.rv) ret = MessageSend(pbRecvBuffer, cbRecvLength, filedes); } break; case SCARD_CONTROL: { struct control_struct ctStr; unsigned char pbSendBuffer[MAX_BUFFER_SIZE_EXTENDED]; unsigned char pbRecvBuffer[MAX_BUFFER_SIZE_EXTENDED]; DWORD dwBytesReturned; READ_BODY(ctStr) if (MSGCheckHandleAssociation(ctStr.hCard, threadContext)) goto exit; /* avoids buffer overflow */ if ((ctStr.cbRecvLength > sizeof(pbRecvBuffer)) || (ctStr.cbSendLength > sizeof(pbSendBuffer))) { goto buffer_overflow; } /* read sent buffer */ ret = MessageReceive(pbSendBuffer, ctStr.cbSendLength, filedes); if (ret != SCARD_S_SUCCESS) { Log2(PCSC_LOG_DEBUG, "Client die: %d", filedes); goto exit; } dwBytesReturned = ctStr.dwBytesReturned; ctStr.rv = SCardControl(ctStr.hCard, ctStr.dwControlCode, pbSendBuffer, ctStr.cbSendLength, pbRecvBuffer, ctStr.cbRecvLength, &dwBytesReturned); ctStr.dwBytesReturned = dwBytesReturned; WRITE_BODY(ctStr) /* write received buffer */ if (SCARD_S_SUCCESS == ctStr.rv) ret = MessageSend(pbRecvBuffer, dwBytesReturned, filedes); } break; case SCARD_GET_ATTRIB: { struct getset_struct gsStr; DWORD cbAttrLen; READ_BODY(gsStr) if (MSGCheckHandleAssociation(gsStr.hCard, threadContext)) goto exit; /* avoids buffer overflow */ if (gsStr.cbAttrLen > sizeof(gsStr.pbAttr)) goto buffer_overflow; cbAttrLen = gsStr.cbAttrLen; gsStr.rv = SCardGetAttrib(gsStr.hCard, gsStr.dwAttrId, gsStr.pbAttr, &cbAttrLen); gsStr.cbAttrLen = cbAttrLen; WRITE_BODY(gsStr) } break; case SCARD_SET_ATTRIB: { struct getset_struct gsStr; READ_BODY(gsStr) if (MSGCheckHandleAssociation(gsStr.hCard, threadContext)) goto exit; /* avoids buffer overflow */ if (gsStr.cbAttrLen > sizeof(gsStr.pbAttr)) goto buffer_overflow; gsStr.rv = SCardSetAttrib(gsStr.hCard, gsStr.dwAttrId, gsStr.pbAttr, gsStr.cbAttrLen); WRITE_BODY(gsStr) } break; default: Log2(PCSC_LOG_CRITICAL, "Unknown command: %d", header.command); goto exit; } /* MessageSend() failed */ if (ret != SCARD_S_SUCCESS) { /* Clean up the dead client */ Log2(PCSC_LOG_DEBUG, "Client die: %d", filedes); goto exit; } } buffer_overflow: Log2(PCSC_LOG_DEBUG, "Buffer overflow detected: %d", filedes); goto exit; wrong_length: Log2(PCSC_LOG_DEBUG, "Wrong length: %d", filedes); exit: (void)close(filedes); (void)MSGCleanupClient(threadContext); (void)pthread_exit((LPVOID) NULL); }
bool QPCSCReader::beginTransaction() { return SCardBeginTransaction( d->card ) == SCARD_S_SUCCESS; }