ADD: @marshmellow42 's 14b fixes.

FIX: 14b sim changes in  iso14443b.c ,  *experimental*   I took some timing loops from "14a sim" armsrc/iso14443a.c  and merged it into the "14b sim".   Now using two pm3's I can have one simulating and the other reading and it works.  Ask @pwpiwi if you want to know more of what those timing loops does.  Something about waiting for the fpga delay queue...
This commit is contained in:
iceman1001 2015-06-25 12:25:44 +02:00
parent 9783989b40
commit 17ad0e0948
4 changed files with 177 additions and 95 deletions

View file

@ -1685,9 +1685,7 @@ static int EmSendCmd14443aRaw(uint8_t *resp, uint16_t respLen, bool correctionNe
FpgaSendQueueDelay = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
}
if(BUTTON_PRESS()) {
break;
}
if(BUTTON_PRESS()) break;
}
// Ensure that the FPGA Delay Queue is empty before we switch to TAGSIM_LISTEN again:

View file

@ -321,6 +321,9 @@ static int GetIso14443bCommandFromReader(uint8_t *received, uint16_t *len)
//-----------------------------------------------------------------------------
void SimulateIso14443bTag(void)
{
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
BigBuf_free();
// the only commands we understand is REQB, AFI=0, Select All, N=0:
static const uint8_t cmd1[] = { 0x05, 0x00, 0x08, 0x39, 0x73 };
// ... and REQB, AFI=0, Normal Request, N=0:
@ -340,18 +343,16 @@ void SimulateIso14443bTag(void)
const uint8_t *resp;
uint8_t *respCode;
uint16_t respLen, respCodeLen;
// allocate command receive buffer
BigBuf_free();
uint8_t *receivedCmd = BigBuf_malloc(MAX_FRAME_SIZE);
uint16_t len;
uint16_t cmdsRecvd = 0;
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
// allocate command receive buffer
uint8_t *receivedCmd = BigBuf_malloc(MAX_FRAME_SIZE);
// prepare the (only one) tag answer:
CodeIso14443bAsTag(response1, sizeof(response1));
uint8_t *resp1Code = BigBuf_malloc(ToSendMax);
memcpy(resp1Code, ToSend, ToSendMax);
uint16_t resp1CodeLen = ToSendMax;
@ -411,22 +412,34 @@ void SimulateIso14443bTag(void)
AT91C_BASE_SSC->SSC_THR = 0xff;
FpgaSetupSsc();
uint8_t c;
// clear receiving shift register and holding register
while(!(AT91C_BASE_SSC->SSC_SR & AT91C_SSC_RXRDY));
c = AT91C_BASE_SSC->SSC_RHR; (void) c;
while(!(AT91C_BASE_SSC->SSC_SR & AT91C_SSC_RXRDY));
c = AT91C_BASE_SSC->SSC_RHR; (void) c;
// Clear TXRDY:
AT91C_BASE_SSC->SSC_THR = 0x00;
// Transmit the response.
uint16_t FpgaSendQueueDelay = 0;
uint16_t i = 0;
for(;;) {
for(;i < respCodeLen; ) {
if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
uint8_t b = respCode[i];
AT91C_BASE_SSC->SSC_THR = b;
i++;
if(i > respCodeLen) {
break;
}
AT91C_BASE_SSC->SSC_THR = respCode[i++];
FpgaSendQueueDelay = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
}
if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
volatile uint8_t b = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
(void)b;
if(BUTTON_PRESS()) break;
}
// Ensure that the FPGA Delay Queue is empty before we switch to TAGSIM_LISTEN again:
uint8_t fpga_queued_bits = FpgaSendQueueDelay >> 3;
for (i = 0; i <= fpga_queued_bits/8 + 1; ) {
if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
AT91C_BASE_SSC->SSC_THR = 0x00;
FpgaSendQueueDelay = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
i++;
}
}
@ -908,18 +921,17 @@ static void CodeAndTransmit14443bAsReader(const uint8_t *cmd, int len)
//-----------------------------------------------------------------------------
void ReadSTMemoryIso14443b(uint32_t dwLast)
{
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
clear_trace();
set_tracing(TRUE);
uint8_t i = 0x00;
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
// Make sure that we start from off, since the tags are stateful;
// confusing things will happen if we don't reset them between reads.
LED_D_OFF();
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
SpinDelay(200);
SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
FpgaSetupSsc();
@ -1014,9 +1026,10 @@ void ReadSTMemoryIso14443b(uint32_t dwLast)
// Now print out the memory location:
Dbprintf("Address=%02x, Contents=%08x, CRC=%04x", i,
(Demod.output[3]<<24) + (Demod.output[2]<<16) + (Demod.output[1]<<8) + Demod.output[0],
(Demod.output[4]<<8)+Demod.output[5]
);
if (i == 0xff) break;
(Demod.output[4]<<8)+Demod.output[5]);
if (i == 0xff) {
break;
}
i++;
}
}
@ -1090,9 +1103,6 @@ void RAMFUNC SnoopIso14443b(void)
bool TagIsActive = FALSE;
bool ReaderIsActive = FALSE;
bool TagIsActive = FALSE;
bool ReaderIsActive = FALSE;
// And now we loop, receiving samples.
for(;;) {
int behindBy = (lastRxCounter - AT91C_BASE_PDC_SSC->PDC_RCR) &
@ -1116,10 +1126,6 @@ void RAMFUNC SnoopIso14443b(void)
if(behindBy > (9*ISO14443B_DMA_BUFFER_SIZE/10)) { // TODO: understand whether we can increase/decrease as we want or not?
Dbprintf("blew circular buffer! behindBy=%d", behindBy);
break;
WDT_HIT();
if(behindBy > (9*DMA_BUFFER_SIZE/10)) { // TODO: understand whether we can increase/decrease as we want or not?
Dbprintf("blew circular buffer! behindBy=%d", behindBy);
break;
}
if(!tracing) {
DbpString("Reached trace limit");
@ -1203,6 +1209,7 @@ void RAMFUNC SnoopIso14443b(void)
void SendRawCommand14443B(uint32_t datalen, uint32_t recv, uint8_t powerfield, uint8_t data[])
{
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
BigBuf_free();
SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
FpgaSetupSsc();

View file

@ -11,7 +11,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
//#include <string.h>
#include <stdint.h>
#include "iso14443crc.h"
#include "proxmark3.h"
@ -36,6 +36,7 @@ int CmdHF14BList(const char *Cmd)
int CmdHF14BSim(const char *Cmd)
{
UsbCommand c={CMD_SIMULATE_TAG_ISO_14443B};
clearCommandBuffer();
SendCommand(&c);
return 0;
}
@ -43,6 +44,7 @@ int CmdHF14BSim(const char *Cmd)
int CmdHF14BSnoop(const char *Cmd)
{
UsbCommand c = {CMD_SNOOP_ISO_14443B};
clearCommandBuffer();
SendCommand(&c);
return 0;
}
@ -103,26 +105,29 @@ int HF14BCmdRaw(bool reply, bool *crc, bool power, uint8_t *data, uint8_t *datal
if (!reply) return 1;
if (!WaitForResponseTimeout(CMD_ACK,&resp,1000)) {
if (!WaitForResponseTimeout(CMD_ACK, &resp, 2000)) {
if (verbose) PrintAndLog("timeout while waiting for reply.");
return 0;
}
*datalen = resp.arg[0];
if (verbose) PrintAndLog("received %u octets", *datalen);
if(*datalen<2) return 0;
return 0;
}
memcpy(data, resp.d.asBytes, *datalen);
if (verbose) PrintAndLog("%s", sprint_hex(data, *datalen));
int len = resp.arg[0];
if (verbose) {
PrintAndLog("received %u octets", len);
}
if ( len < 2 ) return 0;
uint8_t first, second;
ComputeCrc14443(CRC_14443_B, data, *datalen-2, &first, &second);
if(data[*datalen-2] == first && data[*datalen-1] == second) {
if (verbose) PrintAndLog("CRC OK");
*crc = true;
} else {
if (verbose) PrintAndLog("CRC failed");
*crc = false;
}
memcpy(data, resp.d.asBytes, len);
if (verbose) PrintAndLog("%s", sprint_hex(data, len));
uint8_t first, second;
ComputeCrc14443(CRC_14443_B, data, len-2, &first, &second);
if(data[len-2] == first && data[len-1] == second) {
if (verbose) PrintAndLog("CRC OK");
*crc = true;
} else {
if (verbose) PrintAndLog("CRC failed");
*crc = false;
}
return 1;
}
@ -131,7 +136,7 @@ int CmdHF14BCmdRaw (const char *Cmd) {
bool crc = false;
bool power = false;
char buf[5]="";
uint8_t data[100] = {0x00};
uint8_t data[USB_CMD_DATA_SIZE] = {0x00};
uint8_t datalen = 0;
unsigned int temp;
int i = 0;
@ -244,38 +249,109 @@ char *get_ST_Chip_Model(uint8_t data){
case 0xC: sprintf(retStr, "SRT512"); break;
default: sprintf(retStr, "Unknown"); break;
}
c.arg[0] = datalen;
c.arg[1] = reply;
c.arg[2] = power;
memcpy(c.d.asBytes,data,datalen);
SendCommand(&c);
if (reply) {
if (WaitForResponseTimeout(CMD_ACK,&resp,1000)) {
recv = resp.d.asBytes;
PrintAndLog("received %i octets",resp.arg[0]);
if(resp.arg[0] == 0)
return 0;
hexout = (char *)malloc(resp.arg[0] * 3 + 1);
if (hexout != NULL) {
uint8_t first, second;
for (int i = 0; i < resp.arg[0]; i++) { // data in hex
sprintf(&hexout[i * 3], "%02X ", recv[i]);
}
PrintAndLog("%s", hexout);
free(hexout);
if (resp.arg[0] > 2) {
ComputeCrc14443(CRC_14443_B, recv, resp.arg[0]-2, &first, &second);
if(recv[resp.arg[0]-2]==first && recv[resp.arg[0]-1]==second) {
PrintAndLog("CRC OK");
} else {
PrintAndLog("CRC failed");
}
}
} else {
PrintAndLog("malloc failed your client has low memory?");
return retStr;
}
static void print_st_info(uint8_t *data){
//uid = first 8 bytes in data
PrintAndLog(" UID: %s", sprint_hex(SwapEndian64(data,8,8),8));
PrintAndLog(" MFG: %02X, %s", data[6], getTagInfo(data[6]));
PrintAndLog("Chip: %02X, %s", data[5]>>2, get_ST_Chip_Model(data[5]>>2));
return;
}
int HF14BStdInfo(uint8_t *data, uint8_t *datalen){
//05 00 00 = find one tag in field
//1d xx xx xx xx 20 00 08 01 00 = attrib xx=crc
//a3 = ? (resp 03 e2 c2)
//02 = ? (resp 02 6a d3)
// 022b (resp 02 67 00 [29 5b])
// 0200a40400 (resp 02 67 00 [29 5b])
// 0200a4040c07a0000002480300 (resp 02 67 00 [29 5b])
// 0200a4040c07a0000002480200 (resp 02 67 00 [29 5b])
// 0200a4040006a0000000010100 (resp 02 6a 82 [4b 4c])
// 0200a4040c09d27600002545500200 (resp 02 67 00 [29 5b])
// 0200a404000cd2760001354b414e4d30310000 (resp 02 6a 82 [4b 4c])
// 0200a404000ca000000063504b43532d313500 (resp 02 6a 82 [4b 4c])
// 0200a4040010a000000018300301000000000000000000 (resp 02 6a 82 [4b 4c])
//03 = ? (resp 03 [e3 c2])
//c2 = ? (resp c2 [66 15])
//b2 = ? (resp a3 [e9 67])
bool crc = true;
*datalen = 3;
//std read cmd
data[0] = 0x05;
data[1] = 0x00;
data[2] = 0x00;
if (HF14BCmdRaw(true, &crc, false, data, datalen, false)==0) return 0;
if (data[0] != 0x50 || *datalen != 14 || !crc) return 0;
PrintAndLog ("\n14443-3b tag found:");
print_atqb_resp(data);
return 1;
}
int HF14B_ST_Info(uint8_t *data, uint8_t *datalen){
bool crc = true;
*datalen = 2;
//wake cmd
data[0] = 0x06;
data[1] = 0x00;
//leave power on
// verbose on for now for testing - turn off when functional
if (HF14BCmdRaw(true, &crc, true, data, datalen, false)==0) return rawClose();
if (*datalen != 3 || !crc) return rawClose();
uint8_t chipID = data[0];
// select
data[0] = 0x0E;
data[1] = chipID;
*datalen = 2;
//leave power on
// verbose on for now for testing - turn off when functional
if (HF14BCmdRaw(true, &crc, true, data, datalen, false)==0) return rawClose();
if (*datalen != 3 || !crc || data[0] != chipID) return rawClose();
// get uid
data[0] = 0x0B;
*datalen = 1;
//power off
// verbose on for now for testing - turn off when functional
if (HF14BCmdRaw(true, &crc, true, data, datalen, false)==0) return 0;
rawClose();
if (*datalen != 10 || !crc) return 0;
PrintAndLog("\n14443-3b ST tag found:");
print_st_info(data);
return 1;
}
// test for other 14b type tags (mimic another reader - don't have tags to identify)
int HF14B_Other_Info(uint8_t *data, uint8_t *datalen){
bool crc = true;
*datalen = 4;
//std read cmd
data[0] = 0x00;
data[1] = 0x0b;
data[2] = 0x3f;
data[3] = 0x80;
if (HF14BCmdRaw(true, &crc, false, data, datalen, false)!=0) {
if (*datalen > 2 || !crc) {
PrintAndLog ("\n14443-3b tag found:");
PrintAndLog ("Unknown tag type answered to a 0x000b3f80 command ans:");
PrintAndLog ("%s",sprint_hex(data,*datalen));
return 1;
}
}
crc = false;
@ -308,29 +384,29 @@ char *get_ST_Chip_Model(uint8_t data){
}
int HF14BReader(bool verbose){
int HF14BInfo(bool verbose){
uint8_t data[100];
uint8_t datalen = 5;
// try std 14b (atqb)
if (HF14BStdReader(data, &datalen)) return 1;
if (HF14BStdInfo(data, &datalen)) return 1;
// try st 14b
if (HF14B_ST_Reader(data, &datalen)) return 1;
if (HF14B_ST_Info(data, &datalen)) return 1;
// try unknown 14b read commands (to be identified later)
// could be read of calypso, CEPAS, moneo, or pico pass.
if (HF14B_Other_Reader(data, &datalen)) return 1;
if (HF14B_Other_Info(data, &datalen)) return 1;
if (verbose) PrintAndLog("no 14443B tag found");
return 0;
}
int CmdHF14BReader(const char *Cmd){
return HF14BReader(true);
int CmdHF14Binfo(const char *Cmd){
return HF14BInfo(true);
}
int CmdHF14BWrite( const char *Cmd){
int CmdSriWrite( const char *Cmd){
/*
* For SRIX4K blocks 00 - 7F
* hf 14b raw -c -p 09 $srix4kwblock $srix4kwdata
@ -400,13 +476,14 @@ int CmdHF14BWrite( const char *Cmd){
static command_t CommandTable[] =
{
{"help", CmdHelp, 1, "This help"},
{"info", CmdHF14Binfo, 0, "Find and print info about a 14b type tag (HF ISO 14443b)"},
{"list", CmdHF14BList, 0, "[Deprecated] List ISO 14443b history"},
{"sim", CmdHF14BSim, 0, "Fake ISO 14443B tag"},
{"snoop", CmdHF14BSnoop, 0, "Eavesdrop ISO 14443B"},
{"sri512read", CmdSri512Read, 0, "Read contents of a SRI512 tag"},
{"srix4kread", CmdSrix4kRead, 0, "Read contents of a SRIX4K tag"},
{"sriwrite", CmdSriWrite, 0, "Write data to a SRI512 | SRIX4K tag"},
{"raw", CmdHF14BCmdRaw, 0, "Send raw hex data to tag"},
{"write", CmdHF14BWrite, 0, "Write data to a SRI512 | SRIX4K tag"},
{NULL, NULL, 0, NULL}
};

View file

@ -13,12 +13,12 @@
int CmdHF14B(const char *Cmd);
int CmdHF14BList(const char *Cmd);
int CmdHF14BReader(const char *Cmd);
int CmdHF14BInfo(const char *Cmd);
int CmdHF14BSim(const char *Cmd);
int CmdHF14BSnoop(const char *Cmd);
int CmdSri512Read(const char *Cmd);
int CmdSrix4kRead(const char *Cmd);
int CmdHF14BWrite( const char *cmd);
int HF14BReader(bool verbose);
int HF14BInfo(bool verbose);
#endif