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https://github.com/RfidResearchGroup/proxmark3.git
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CHG: "hf 14b sim" making the flow to be similar to "hf 14a sim".
This commit is contained in:
iceman1001
parent
883c82b573
commit
0923c43cc6
2 changed files with 116 additions and 95 deletions
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@ -484,45 +484,8 @@ static void TransmitFor14443b_AsTag( uint8_t *response, uint16_t len) {
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// response to send, and send it.
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//-----------------------------------------------------------------------------
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void SimulateIso14443bTag(uint32_t pupi) {
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// the only commands we understand is WUPB, AFI=0, Select All, N=1:
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static const uint8_t cmd1[] = { ISO14443B_REQB, 0x00, 0x08, 0x39, 0x73 }; // WUPB
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// ... and REQB, AFI=0, Normal Request, N=1:
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static const uint8_t cmd2[] = { ISO14443B_REQB, 0x00, 0x00, 0x71, 0xFF }; // REQB
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// ... and ATTRIB
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static const uint8_t cmd4[] = { ISO14443B_ATTRIB, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; // ATTRIB
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// ... if not PUPI/UID is supplied we always respond with ATQB, PUPI = 820de174, Application Data = 0x20381922,
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// supports only 106kBit/s in both directions, max frame size = 32Bytes,
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// supports ISO14443-4, FWI=8 (77ms), NAD supported, CID not supported:
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uint8_t response1[] = {
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0x50, 0x82, 0x0d, 0xe1, 0x74, 0x20, 0x38, 0x19, 0x22,
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0x00, 0x21, 0x85, 0x5e, 0xd7
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};
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// response to HLTB and ATTRIB
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static const uint8_t response2[] = {0x00, 0x78, 0xF0};
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// PUPI/UID supplied
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if ( pupi > 0 ) {
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uint8_t len = sizeof(response1);
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num_to_bytes(pupi, 4, response1+1);
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ComputeCrc14443(CRC_14443_B, response1, len-2, response1+len-2, response1+len-1);
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//print it..
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}
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uint16_t len, cmdsRecvd = 0;
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uint8_t *receivedCmd = BigBuf_malloc(MAX_FRAME_SIZE);
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uint8_t *resp1Code;
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uint8_t *resp2Code;
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uint16_t resp1CodeLen, resp2CodeLen;
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// uint32_t time_0 = 0;
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// uint32_t t2r_time = 0;
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// uint32_t r2t_time = 0;
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int cardSTATE = MFEMUL_NOFIELD;
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int vHf = 0; // in mV
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///////////// setup device.
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FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
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// allocate command receive buffer
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@ -536,62 +499,105 @@ void SimulateIso14443bTag(uint32_t pupi) {
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// Set up the synchronous serial port
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FpgaSetupSsc();
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/////////////
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// prepare the (only one) tag answer:
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CodeIso14443bAsTag(response1, sizeof(response1));
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resp1Code = BigBuf_malloc(ToSendMax);
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resp1CodeLen = ToSendMax;
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memcpy(resp1Code, ToSend, ToSendMax);
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uint16_t len, cmdsReceived = 0;
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int cardSTATE = SIM_NOFIELD;
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int vHf = 0; // in mV
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// uint32_t time_0 = 0;
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// uint32_t t2r_time = 0;
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// uint32_t r2t_time = 0;
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uint8_t *receivedCmd = BigBuf_malloc(MAX_FRAME_SIZE);
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// the only commands we understand is WUPB, AFI=0, Select All, N=1:
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// static const uint8_t cmdWUPB[] = { ISO14443B_REQB, 0x00, 0x08, 0x39, 0x73 }; // WUPB
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// ... and REQB, AFI=0, Normal Request, N=1:
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// static const uint8_t cmdREQB[] = { ISO14443B_REQB, 0x00, 0x00, 0x71, 0xFF }; // REQB
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// ... and ATTRIB
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// static const uint8_t cmdATTRIB[] = { ISO14443B_ATTRIB, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; // ATTRIB
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// ... if not PUPI/UID is supplied we always respond with ATQB, PUPI = 820de174, Application Data = 0x20381922,
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// supports only 106kBit/s in both directions, max frame size = 32Bytes,
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// supports ISO14443-4, FWI=8 (77ms), NAD supported, CID not supported:
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uint8_t respATQB[] = { 0x50, 0x82, 0x0d, 0xe1, 0x74, 0x20, 0x38, 0x19,
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0x22, 0x00, 0x21, 0x85, 0x5e, 0xd7 };
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// response to HLTB and ATTRIB
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static const uint8_t respOK[] = {0x00, 0x78, 0xF0};
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// ...PUPI/UID supplied from user. Adjust ATQB response accordingly
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if ( pupi > 0 ) {
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num_to_bytes(pupi, 4, respATQB+1);
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ComputeCrc14443(CRC_14443_B, respATQB, 12, respATQB+13, respATQB+14);
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}
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// prepare "ATQB" tag answer (encoded):
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CodeIso14443bAsTag(respATQB, sizeof(respATQB));
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uint8_t *encodedATQB = BigBuf_malloc(ToSendMax);
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uint16_t encodedATQBLen = ToSendMax;
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memcpy(encodedATQB, ToSend, ToSendMax);
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// prepare the (other) tag answer:
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CodeIso14443bAsTag(response2, sizeof(response2));
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resp2Code = BigBuf_malloc(ToSendMax);
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resp2CodeLen = ToSendMax;
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memcpy(resp2Code, ToSend, ToSendMax);
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// prepare "OK" tag answer (encoded):
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CodeIso14443bAsTag(respOK, sizeof(respOK));
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uint8_t *encodedOK = BigBuf_malloc(ToSendMax);
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uint16_t encodedOKLen = ToSendMax;
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memcpy(encodedOK, ToSend, ToSendMax);
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// Simulation loop
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while (!BUTTON_PRESS() && !usb_poll_validate_length()) {
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WDT_HIT();
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// find reader field
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if (cardSTATE == MFEMUL_NOFIELD) {
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if (cardSTATE == SIM_NOFIELD) {
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vHf = (MAX_ADC_HF_VOLTAGE * AvgAdc(ADC_CHAN_HF)) >> 10;
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if ( vHf > MF_MINFIELDV )
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cardSTATE = MFEMUL_IDLE;
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if ( vHf > MF_MINFIELDV ) {
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cardSTATE = SIM_IDLE;
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LED_A_ON();
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}
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}
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if (cardSTATE == MFEMUL_NOFIELD) continue;
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if (cardSTATE == SIM_NOFIELD) continue;
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// Get reader command
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if (!GetIso14443bCommandFromReader(receivedCmd, &len)) {
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Dbprintf("button pressed, received %d commands", cmdsRecvd);
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Dbprintf("button pressed, received %d commands", cmdsReceived);
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break;
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}
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// REQ or WUP request in ANY state and WUP in HALTED state
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if (len == 5 && (
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(receivedCmd[0] == ISO14443B_REQB && cardSTATE != MFEMUL_HALTED) ||
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receivedCmd[0] == ISO14443A_CMD_WUPA
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)
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) {
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TransmitFor14443b_AsTag( resp1Code, resp1CodeLen );
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LogTrace(response1, sizeof(response1), 0, 0, NULL, FALSE);
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cardSTATE = MFEMUL_SELECT1;
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continue;
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}
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// ISO14443-B protocol states:
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// REQ or WUP request in ANY state
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// WUP in HALTED state
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if (len == 5 ) {
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if ( (receivedCmd[0] == ISO14443B_REQB && (receivedCmd[2] & 0x8)== 0x8 && cardSTATE != SIM_HALTED) ||
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(receivedCmd[0] == ISO14443B_REQB && (receivedCmd[2] & 0x8)== 0) ){
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TransmitFor14443b_AsTag( encodedATQB, encodedATQBLen );
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LogTrace(respATQB, sizeof(respATQB), 0, 0, NULL, FALSE);
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cardSTATE = SIM_SELECTING;
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continue;
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}
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}
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/*
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* How should this flow go?
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* REQB or WUPB
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* send response ( waiting for Attrib)
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* ATTRIB
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* send response ( waiting for commands 7816)
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* HALT
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send halt response ( waiting for wupb )
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*/
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if ( (len == 5 && memcmp(receivedCmd, cmd1, len) == 0) ||
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(len == 5 && memcmp(receivedCmd, cmd2, len) == 0) ) {
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//WUPB && REQB
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cardSTATE = MFEMUL_SELECT1;
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} else if ( len == 7 && receivedCmd[0] == ISO14443B_HALT ) {
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cardSTATE = MFEMUL_HALTED;
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} else if ( len == sizeof(cmd4) && receivedCmd[0] == ISO14443B_ATTRIB ) {
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cardSTATE = MFEMUL_SELECT2;
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if ( len == 7 && receivedCmd[0] == ISO14443B_HALT ) {
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cardSTATE = SIM_HALTED;
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} else if ( len == 11 && receivedCmd[0] == ISO14443B_ATTRIB ) {
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cardSTATE = SIM_ACKNOWLEDGE;
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} else {
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// SLOT MARKER command?!?
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// ISO7816?!?
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Dbprintf("new cmd from reader: len=%d, cmdsRecvd=%d", len, cmdsRecvd);
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// Todo:
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// - SLOT MARKER
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// - ISO7816
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// - emulate with a memory dump
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Dbprintf("new cmd from reader: len=%d, cmdsRecvd=%d", len, cmdsReceived);
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// CRC Check
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uint8_t b1, b2;
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@ -602,38 +608,45 @@ void SimulateIso14443bTag(uint32_t pupi) {
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else
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DbpString("CRC passes");
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}
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cardSTATE = MFEMUL_IDLE;
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cardSTATE = SIM_IDLE;
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}
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switch(cardSTATE){
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case MFEMUL_NOFIELD:
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case MFEMUL_HALTED:
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case MFEMUL_IDLE:{
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case SIM_NOFIELD:
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case SIM_HALTED:
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case SIM_IDLE:{
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LogTrace(receivedCmd, len, 0, 0, NULL, TRUE);
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break;
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}
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case MFEMUL_SELECT1:
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TransmitFor14443b_AsTag( resp1Code, resp1CodeLen );
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LogTrace(response1, sizeof(response1), 0, 0, NULL, FALSE);
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cardSTATE = MFEMUL_WORK;
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case SIM_SELECTING: {
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TransmitFor14443b_AsTag( encodedATQB, encodedATQBLen );
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LogTrace(respATQB, sizeof(respATQB), 0, 0, NULL, FALSE);
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cardSTATE = SIM_IDLE;
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break;
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case MFEMUL_SELECT2:
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TransmitFor14443b_AsTag( resp2Code, resp2CodeLen );
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LogTrace(response2, sizeof(response2), 0, 0, NULL, FALSE);
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cardSTATE = MFEMUL_HALTED;
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}
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case SIM_HALTING: {
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TransmitFor14443b_AsTag( encodedOK, encodedOKLen );
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LogTrace(respOK, sizeof(respOK), 0, 0, NULL, FALSE);
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cardSTATE = SIM_HALTED;
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break;
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case MFEMUL_WORK:
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}
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case SIM_ACKNOWLEDGE:{
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TransmitFor14443b_AsTag( encodedOK, encodedOKLen );
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LogTrace(respOK, sizeof(respOK), 0, 0, NULL, FALSE);
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cardSTATE = SIM_IDLE;
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break;
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}
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default:
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break;
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}
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++cmdsRecvd;
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if(cmdsRecvd > 1000) {
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++cmdsReceived;
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if(cmdsReceived > 1000) {
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DbpString("14B Simulate, 1000 commands later...");
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break;
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}
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}
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if (MF_DBGLEVEL >= 1) Dbprintf("Emulator stopped. Tracing: %d trace length: %d ", tracing, BigBuf_get_traceLen());
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switch_off(); //simulate
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}
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@ -25,11 +25,19 @@
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extern void AppendCrc14443b(uint8_t *data, int len);
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uint8_t iso14443b_apdu(uint8_t const *message, size_t message_length, uint8_t *response);
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void SendRawCommand14443B_Ex(UsbCommand *c);
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void iso14443b_setup();
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uint8_t iso14443b_apdu(uint8_t const *message, size_t message_length, uint8_t *response);
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uint8_t iso14443b_select_card(iso14b_card_select_t* card);
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uint8_t iso14443b_select_card_srx(iso14b_card_select_t* card);
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void SendRawCommand14443B_Ex(UsbCommand *c);
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#define SIM_NOFIELD 0
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#define SIM_IDLE 1
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#define SIM_HALTED 2
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#define SIM_SELECTING 3
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#define SIM_HALTING 4
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#define SIM_ACKNOWLEDGE 5
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#endif /* __ISO14443B_H */
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