mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2024-12-27 10:34:08 +08:00
iso15: add support for slow and 2SC to GetIso15693AnswerFromTag()
Allow running raw iso15 cmd expecting slow and/or dual subcarriers
answers. E.g. sending slow 2SC inventory ("hf 15 raw -c -d 250100") is
now working.
This commit is contained in:
Yann GASCUEL
parent
3aaa824238
commit
abb840558f
3 changed files with 107 additions and 48 deletions
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@ -1264,7 +1264,7 @@ static bool iclass_send_cmd_with_retries(uint8_t *cmd, size_t cmdsize, uint8_t *
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return true;
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}
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if (expected_size == GetIso15693AnswerFromTag(resp, max_resp_size, timeout, eof_time)) {
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if (expected_size == GetIso15693AnswerFromTag(resp, max_resp_size, timeout, eof_time, false, true)) {
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return true;
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}
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}
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@ -1296,7 +1296,7 @@ static bool select_iclass_tag_ex(picopass_hdr_t *hdr, bool use_credit_key, uint3
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// wakeup
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uint32_t start_time = GetCountSspClk();
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iclass_send_as_reader(act_all, 1, &start_time, eof_time);
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int len = GetIso15693AnswerFromTag(resp, sizeof(resp), ICLASS_READER_TIMEOUT_ACTALL, eof_time);
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int len = GetIso15693AnswerFromTag(resp, sizeof(resp), ICLASS_READER_TIMEOUT_ACTALL, eof_time, false, true);
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if (len < 0)
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return false;
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@ -1305,7 +1305,7 @@ static bool select_iclass_tag_ex(picopass_hdr_t *hdr, bool use_credit_key, uint3
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iclass_send_as_reader(identify, 1, &start_time, eof_time);
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// expect a 10-byte response here, 8 byte anticollision-CSN and 2 byte CRC
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len = GetIso15693AnswerFromTag(resp, sizeof(resp), ICLASS_READER_TIMEOUT_OTHERS, eof_time);
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len = GetIso15693AnswerFromTag(resp, sizeof(resp), ICLASS_READER_TIMEOUT_OTHERS, eof_time, false, true);
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if (len != 10)
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return false;
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@ -1317,7 +1317,7 @@ static bool select_iclass_tag_ex(picopass_hdr_t *hdr, bool use_credit_key, uint3
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iclass_send_as_reader(select, sizeof(select), &start_time, eof_time);
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// expect a 10-byte response here, 8 byte CSN and 2 byte CRC
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len = GetIso15693AnswerFromTag(resp, sizeof(resp), ICLASS_READER_TIMEOUT_OTHERS, eof_time);
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len = GetIso15693AnswerFromTag(resp, sizeof(resp), ICLASS_READER_TIMEOUT_OTHERS, eof_time, false, true);
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if (len != 10)
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return false;
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@ -1329,7 +1329,7 @@ static bool select_iclass_tag_ex(picopass_hdr_t *hdr, bool use_credit_key, uint3
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iclass_send_as_reader(read_conf, sizeof(read_conf), &start_time, eof_time);
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// expect a 8-byte response here
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len = GetIso15693AnswerFromTag(resp, sizeof(resp), ICLASS_READER_TIMEOUT_OTHERS, eof_time);
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len = GetIso15693AnswerFromTag(resp, sizeof(resp), ICLASS_READER_TIMEOUT_OTHERS, eof_time, false, true);
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if (len != 10)
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return false;
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@ -1347,7 +1347,7 @@ static bool select_iclass_tag_ex(picopass_hdr_t *hdr, bool use_credit_key, uint3
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iclass_send_as_reader(read_aia, sizeof(read_aia), &start_time, eof_time);
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// expect a 10-byte response here
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len = GetIso15693AnswerFromTag(resp, sizeof(resp), ICLASS_READER_TIMEOUT_OTHERS, eof_time);
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len = GetIso15693AnswerFromTag(resp, sizeof(resp), ICLASS_READER_TIMEOUT_OTHERS, eof_time, false, true);
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if (len != 10)
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return false;
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@ -1361,7 +1361,7 @@ static bool select_iclass_tag_ex(picopass_hdr_t *hdr, bool use_credit_key, uint3
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iclass_send_as_reader(read_check_cc, sizeof(read_check_cc), &start_time, eof_time);
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// expect a 8-byte response here
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len = GetIso15693AnswerFromTag(resp, sizeof(resp), ICLASS_READER_TIMEOUT_OTHERS, eof_time);
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len = GetIso15693AnswerFromTag(resp, sizeof(resp), ICLASS_READER_TIMEOUT_OTHERS, eof_time, false, true);
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if (len != 8)
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return false;
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@ -1383,7 +1383,7 @@ static bool select_iclass_tag_ex(picopass_hdr_t *hdr, bool use_credit_key, uint3
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iclass_send_as_reader(read_aia, sizeof(read_aia), &start_time, eof_time);
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// expect a 10-byte response here
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len = GetIso15693AnswerFromTag(resp, sizeof(resp), ICLASS_READER_TIMEOUT_OTHERS, eof_time);
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len = GetIso15693AnswerFromTag(resp, sizeof(resp), ICLASS_READER_TIMEOUT_OTHERS, eof_time, false, true);
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if (len != 10)
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return false;
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@ -1870,7 +1870,7 @@ void iClass_WriteBlock(uint8_t *msg) {
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return;
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} else {
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if (GetIso15693AnswerFromTag(resp, sizeof(resp), ICLASS_READER_TIMEOUT_UPDATE, &eof_time) == 10) {
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if (GetIso15693AnswerFromTag(resp, sizeof(resp), ICLASS_READER_TIMEOUT_UPDATE, &eof_time, false, true) == 10) {
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res = true;
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break;
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}
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@ -967,20 +967,27 @@ static int RAMFUNC Handle15693FSKSamplesFromTag(uint8_t freq, DecodeTagFSK_t *De
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/*
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* Receive and decode the tag response, also log to tracebuffer
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*/
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int GetIso15693AnswerFromTag(uint8_t *response, uint16_t max_len, uint16_t timeout, uint32_t *eof_time) {
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int GetIso15693AnswerFromTag(uint8_t *response, uint16_t max_len, uint16_t timeout, uint32_t *eof_time, bool fsk, bool recv_speed) {
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int samples = 0, ret = 0;
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// the Decoder data structure
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DecodeTag_t dtm = { 0 };
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DecodeTag_t *dt = &dtm;
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DecodeTagInit(dt, response, max_len);
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DecodeTagFSK_t dtfm = { 0 };
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DecodeTagFSK_t *dtf = &dtfm;
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if (!fsk)
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DecodeTagInit(dt, response, max_len);
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else
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DecodeTagFSKInit(dtf, response, max_len);
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// wait for last transfer to complete
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while (!(AT91C_BASE_SSC->SSC_SR & AT91C_SSC_TXEMPTY));
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// And put the FPGA in the appropriate mode
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FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER | FPGA_HF_READER_SUBCARRIER_424_KHZ | FPGA_HF_READER_MODE_RECEIVE_AMPLITUDE);
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FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER | FPGA_HF_READER_2SUBCARRIERS_424_484_KHZ | FPGA_HF_READER_MODE_RECEIVE_AMPLITUDE);
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// Setup and start DMA.
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FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER);
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@ -1036,56 +1043,102 @@ int GetIso15693AnswerFromTag(uint8_t *response, uint16_t max_len, uint16_t timeo
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}
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}
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if (Handle15693SamplesFromTag(tagdata, dt, true)) {
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if (!fsk) {
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if (Handle15693SamplesFromTag(tagdata & 0x3FFF, dt, recv_speed)) {
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*eof_time = dma_start_time + (samples * 16) - DELAY_TAG_TO_ARM; // end of EOF
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*eof_time = dma_start_time + (samples * 16) - DELAY_TAG_TO_ARM; // end of EOF
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if (dt->lastBit == SOF_PART2) {
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*eof_time -= (8 * 16); // needed 8 additional samples to confirm single SOF (iCLASS)
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if (dt->lastBit == SOF_PART2) {
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*eof_time -= (8 * 16); // needed 8 additional samples to confirm single SOF (iCLASS)
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}
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if (dt->len > dt->max_len) {
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ret = -2; // buffer overflow
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Dbprintf("overflow (%d > %d", dt->len, dt->max_len);
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}
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break;
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}
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if (dt->len > dt->max_len) {
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ret = -2; // buffer overflow
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Dbprintf("overflow (%d > %d", dt->len, dt->max_len);
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// timeout
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if (samples > timeout && dt->state < STATE_TAG_RECEIVING_DATA) {
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ret = -3;
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break;
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}
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break;
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}
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else {
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if (Handle15693FSKSamplesFromTag(tagdata >> 14, dtf, recv_speed)) {
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// timeout
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if (samples > timeout && dt->state < STATE_TAG_RECEIVING_DATA) {
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ret = -3;
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break;
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*eof_time = dma_start_time + (samples * 16) - DELAY_TAG_TO_ARM; // end of EOF
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if (dtf->lastBit == SOF) {
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*eof_time -= (8 * 16); // needed 8 additional samples to confirm single SOF (iCLASS)
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}
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if (dtf->len > dtf->max_len) {
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ret = -2; // buffer overflow
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Dbprintf("overflow (%d > %d", dtf->len, dtf->max_len);
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}
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break;
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}
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// timeout
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if (samples > timeout && dtf->state < STATE_FSK_RECEIVING_DATA_484) {
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ret = -3;
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break;
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}
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}
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}
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FpgaDisableSscDma();
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FpgaDisableTracing();
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uint32_t sof_time = *eof_time
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- (dt->len * 8 * 8 * 16) // time for byte transfers
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- (32 * 16) // time for SOF transfer
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- (dt->lastBit != SOF_PART2 ? (32 * 16) : 0); // time for EOF transfer
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uint32_t sof_time = *eof_time - (32 * 16); // time for SOF transfer
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if (g_dbglevel >= DBG_EXTENDED) {
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Dbprintf("samples = %d, ret = %d, Decoder: state = %d, lastBit = %d, len = %d, bitCount = %d, posCount = %d, maxlen = %u",
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samples,
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ret,
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dt->state,
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dt->lastBit,
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dt->len,
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dt->bitCount,
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dt->posCount,
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dt->max_len
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if (!fsk) {
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sof_time -= (dt->len * 8 * 8 * 16) // time for byte transfers
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+ (dt->lastBit != SOF_PART2 ? (32 * 16) : 0); // time for EOF transfer
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if (g_dbglevel >= DBG_EXTENDED) {
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Dbprintf("samples = %d, ret = %d, Decoder: state = %d, lastBit = %d, len = %d, bitCount = %d, posCount = %d, maxlen = %u",
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samples,
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ret,
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dt->state,
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dt->lastBit,
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dt->len,
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dt->bitCount,
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dt->posCount,
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dt->max_len
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);
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Dbprintf("timing: sof_time = %d, eof_time = %d", (sof_time * 4), (*eof_time * 4));
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Dbprintf("timing: sof_time = %d, eof_time = %d", (sof_time * 4), (*eof_time * 4));
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}
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}
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else {
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sof_time -= (dtf->len * 8 * 8 * 16) // time for byte transfers
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+ (dtf->lastBit != SOF ? (32 * 16) : 0); // time for EOF transfer
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if (g_dbglevel >= DBG_EXTENDED) {
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Dbprintf("samples = %d, ret = %d, FSK Decoder: state = %d, lastBit = %d, len = %d, bitCount = %d, count = %d, maxlen = %u",
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samples,
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ret,
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dtf->state,
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dtf->lastBit,
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dtf->len,
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dtf->bitCount,
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dtf->count,
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dtf->max_len
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);
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Dbprintf("timing: sof_time = %d, eof_time = %d", (sof_time * 4), (*eof_time * 4));
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}
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}
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if (ret < 0) {
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return ret;
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}
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LogTrace_ISO15693(dt->output, dt->len, (sof_time * 4), (*eof_time * 4), NULL, false);
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return dt->len;
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if (!fsk) {
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LogTrace_ISO15693(dt->output, dt->len, (sof_time * 4), (*eof_time * 4), NULL, false);
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return dt->len;
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}
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LogTrace_ISO15693(dtf->output, dtf->len, (sof_time * 4), (*eof_time * 4), NULL, false);
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return dtf->len;
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}
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@ -1869,6 +1922,9 @@ int SendDataTag(uint8_t *send, int sendlen, bool init, bool speed_fast, uint8_t
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start_time = GetCountSspClk();
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}
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bool fsk = send[0] & ISO15_REQ_SUBCARRIER_TWO;
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bool recv_speed = send[0] & ISO15_REQ_DATARATE_HIGH;
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if (speed_fast) {
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// high speed (1 out of 4)
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CodeIso15693AsReader(send, sendlen);
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@ -1889,13 +1945,13 @@ int SendDataTag(uint8_t *send, int sendlen, bool init, bool speed_fast, uint8_t
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*eof_time = start_time + 32 * ((8 * ts->max) - 4); // subtract the 4 padding bits after EOF
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LogTrace_ISO15693(send, sendlen, (start_time * 4), (*eof_time * 4), NULL, true);
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if (recv != NULL) {
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res = GetIso15693AnswerFromTag(recv, max_recv_len, timeout, eof_time);
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res = GetIso15693AnswerFromTag(recv, max_recv_len, timeout, eof_time, fsk, recv_speed);
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}
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}
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return res;
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}
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int SendDataTagEOF(uint8_t *recv, uint16_t max_recv_len, uint32_t start_time, uint16_t timeout, uint32_t *eof_time) {
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int SendDataTagEOF(uint8_t *recv, uint16_t max_recv_len, uint32_t start_time, uint16_t timeout, uint32_t *eof_time, bool fsk, bool recv_speed) {
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CodeIso15693AsReaderEOF();
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tosend_t *ts = get_tosend();
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@ -1905,7 +1961,7 @@ int SendDataTagEOF(uint8_t *recv, uint16_t max_recv_len, uint32_t start_time, ui
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int res = 0;
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if (recv != NULL) {
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res = GetIso15693AnswerFromTag(recv, max_recv_len, timeout, eof_time);
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res = GetIso15693AnswerFromTag(recv, max_recv_len, timeout, eof_time, fsk, recv_speed);
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}
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return res;
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}
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@ -2335,10 +2391,13 @@ void DirectTag15693Command(uint32_t datalen, uint32_t speed, uint32_t recv, uint
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reply_mix(CMD_ACK, recvlen, 0, 0, NULL, 0);
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} else {
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bool fsk = data[0] & ISO15_REQ_SUBCARRIER_TWO;
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bool recv_speed = data[0] & ISO15_REQ_DATARATE_HIGH;
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// send a single EOF to get the tag response
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if (request_answer) {
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start_time = eof_time + DELAY_ISO15693_VICC_TO_VCD_READER;
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recvlen = SendDataTagEOF((recv ? recvbuf : NULL), sizeof(recvbuf), start_time, ISO15693_READER_TIMEOUT, &eof_time);
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recvlen = SendDataTagEOF((recv ? recvbuf : NULL), sizeof(recvbuf), start_time, ISO15693_READER_TIMEOUT, &eof_time, fsk, recv_speed);
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}
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if (recv) {
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@ -41,7 +41,7 @@ void CodeIso15693AsTag(const uint8_t *cmd, size_t len);
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void TransmitTo15693Reader(const uint8_t *cmd, size_t len, uint32_t *start_time, uint32_t slot_time, bool slow);
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int GetIso15693CommandFromReader(uint8_t *received, size_t max_len, uint32_t *eof_time);
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void TransmitTo15693Tag(const uint8_t *cmd, int len, uint32_t *start_time);
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int GetIso15693AnswerFromTag(uint8_t *response, uint16_t max_len, uint16_t timeout, uint32_t *eof_time);
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int GetIso15693AnswerFromTag(uint8_t *response, uint16_t max_len, uint16_t timeout, uint32_t *eof_time, bool fsk, bool recv_speed);
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//void RecordRawAdcSamplesIso15693(void);
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void AcquireRawAdcSamplesIso15693(void);
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@ -55,7 +55,7 @@ void SniffIso15693(uint8_t jam_search_len, uint8_t *jam_search_string, bool icla
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int SendDataTag(uint8_t *send, int sendlen, bool init, bool speed_fast, uint8_t *recv,
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uint16_t max_recv_len, uint32_t start_time, uint16_t timeout, uint32_t *eof_time);
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int SendDataTagEOF(uint8_t *recv, uint16_t max_recv_len, uint32_t start_time, uint16_t timeout, uint32_t *eof_time);
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int SendDataTagEOF(uint8_t *recv, uint16_t max_recv_len, uint32_t start_time, uint16_t timeout, uint32_t *eof_time, bool fsk, bool recv_speed);
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void SetTag15693Uid(const uint8_t *uid);
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