X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/7c8115b27338caee5e7dad653618d6d38b007534..217cfb6b29773989774cbe573af0372df09f056b:/armsrc/hitag2.c diff --git a/armsrc/hitag2.c b/armsrc/hitag2.c index 7702025b..aec01860 100644 --- a/armsrc/hitag2.c +++ b/armsrc/hitag2.c @@ -1217,7 +1217,7 @@ void ReaderHitag(hitag_function htf, hitag_data* htd) { int reset_sof; int tag_sof; int t_wait = HITAG_T_WAIT_MAX; - bool bStop; + bool bStop = false; bool bQuitTraceFull = false; FpgaDownloadAndGo(FPGA_BITSTREAM_LF); @@ -1324,7 +1324,6 @@ void ReaderHitag(hitag_function htf, hitag_data* htd) { frame_count = 0; response = 0; lastbit = 1; - bStop = false; // Tag specific configuration settings (sof, timings, etc.) if (htf < 10){ @@ -1369,46 +1368,46 @@ void ReaderHitag(hitag_function htf, hitag_data* htd) { // By default reset the transmission buffer tx = txbuf; switch(htf) { - case RHT2F_PASSWORD: { - bStop = !hitag2_password(rx,rxlen,tx,&txlen); - } break; - case RHT2F_AUTHENTICATE: { - bStop = !hitag2_authenticate(rx,rxlen,tx,&txlen); - } break; - case RHT2F_CRYPTO: { - bStop = !hitag2_crypto(rx,rxlen,tx,&txlen, false); - } break; - case RHT2F_TEST_AUTH_ATTEMPTS: { - bStop = !hitag2_test_auth_attempts(rx,rxlen,tx,&txlen); - } break; - case RHT2F_UID_ONLY: { - bStop = !hitag2_read_uid(rx, rxlen, tx, &txlen); - attempt_count++; //attempt 3 times to get uid then quit - if (!bStop && attempt_count == 3) bStop = true; - } break; - default: { - Dbprintf("Error, unknown function: %d",htf); - return; - } break; + case RHT2F_PASSWORD: { + bStop = !hitag2_password(rx,rxlen,tx,&txlen); + } break; + case RHT2F_AUTHENTICATE: { + bStop = !hitag2_authenticate(rx,rxlen,tx,&txlen); + } break; + case RHT2F_CRYPTO: { + bStop = !hitag2_crypto(rx,rxlen,tx,&txlen, false); + } break; + case RHT2F_TEST_AUTH_ATTEMPTS: { + bStop = !hitag2_test_auth_attempts(rx,rxlen,tx,&txlen); + } break; + case RHT2F_UID_ONLY: { + bStop = !hitag2_read_uid(rx, rxlen, tx, &txlen); + attempt_count++; //attempt 3 times to get uid then quit + if (!bStop && attempt_count == 3) bStop = true; + } break; + default: { + Dbprintf("Error, unknown function: %d",htf); + return; + } break; } - + // Send and store the reader command // Disable timer 1 with external trigger to avoid triggers during our own modulation AT91C_BASE_TC1->TC_CCR = AT91C_TC_CLKDIS; - + // Wait for HITAG_T_WAIT_2 carrier periods after the last tag bit before transmitting, // Since the clock counts since the last falling edge, a 'one' means that the // falling edge occured halfway the period. with respect to this falling edge, // we need to wait (T_Wait2 + half_tag_period) when the last was a 'one'. // All timer values are in terms of T0 units while(AT91C_BASE_TC0->TC_CV < T0*(t_wait+(HITAG_T_TAG_HALF_PERIOD*lastbit))); - + //Dbprintf("DEBUG: Sending reader frame"); // Transmit the reader frame hitag_reader_send_frame(tx,txlen); - // Enable and reset external trigger in timer for capturing future frames + // Enable and reset external trigger in timer for capturing future frames AT91C_BASE_TC1->TC_CCR = AT91C_TC_CLKEN | AT91C_TC_SWTRG; // Add transmitted frame to total count @@ -1521,7 +1520,11 @@ void ReaderHitag(hitag_function htf, hitag_data* htd) { FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); //Dbprintf("frame received: %d",frame_count); //DbpString("All done"); - cmd_send(CMD_ACK,bSuccessful,0,0,(byte_t*)tag.sectors,48); + if (bSuccessful) + cmd_send(CMD_ACK,bSuccessful,0,0,(byte_t*)tag.sectors,48); + else + cmd_send(CMD_ACK,bSuccessful,0,0,0,0); + } void WriterHitag(hitag_function htf, hitag_data* htd, int page) {