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proxmark3/client/cmdhf14a.c
pwpiwi 19d6d91fd5 hf 14a reader enhancement 
In order to be able to distinguish between Mifare Classic and Mifare Plus
in Security Level 1 (SL1, Mifare Classic Compatibility Mode), hf 14a reader
now always tries RATS - even if SAK claims not to support ISO14443-4.
2014-06-30 08:21:50 +02:00

682 lines
20 KiB
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//-----------------------------------------------------------------------------
// 2011, Merlok
// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>, Hagen Fritsch
//
// This code is licensed to you under the terms of the GNU GPL, version 2 or,
// at your option, any later version. See the LICENSE.txt file for the text of
// the license.
//-----------------------------------------------------------------------------
// High frequency ISO14443A commands
//-----------------------------------------------------------------------------
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "util.h"
#include "iso14443crc.h"
#include "data.h"
#include "proxmark3.h"
#include "ui.h"
#include "cmdparser.h"
#include "cmdhf14a.h"
#include "common.h"
#include "cmdmain.h"
#include "mifare.h"
static int CmdHelp(const char *Cmd);
static void waitCmd(uint8_t iLen);
int CmdHF14AList(const char *Cmd)
{
bool ShowWaitCycles = false;
char param = param_getchar(Cmd, 0);
if (param == 'h' || (param != 0 && param != 'f')) {
PrintAndLog("List data in trace buffer.");
PrintAndLog("Usage: hf 14a list [f]");
PrintAndLog("f - show frame delay times as well");
PrintAndLog("sample: hf 14a list f");
return 0;
}
if (param == 'f') {
ShowWaitCycles = true;
}
uint8_t got[1920];
GetFromBigBuf(got,sizeof(got),0);
WaitForResponse(CMD_ACK,NULL);
PrintAndLog("Recorded Activity");
PrintAndLog("");
PrintAndLog("Start = Start of Start Bit, End = End of last modulation. Src = Source of Transfer");
PrintAndLog("All times are in carrier periods (1/13.56Mhz)");
PrintAndLog("");
PrintAndLog(" Start | End | Src | Data");
PrintAndLog("-----------|-----------|-----|--------");
int i = 0;
uint32_t first_timestamp = 0;
uint32_t timestamp;
uint32_t EndOfTransmissionTimestamp = 0;
for (;;) {
if(i >= 1900) {
break;
}
bool isResponse;
timestamp = *((uint32_t *)(got+i));
if (timestamp & 0x80000000) {
timestamp &= 0x7fffffff;
isResponse = true;
} else {
isResponse = false;
}
if(i==0) {
first_timestamp = timestamp;
}
int parityBits = *((uint32_t *)(got+i+4));
int len = got[i+8];
if (len > 100) {
break;
}
if (i + len >= 1900) {
break;
}
uint8_t *frame = (got+i+9);
// Break and stick with current result if buffer was not completely full
if (frame[0] == 0x44 && frame[1] == 0x44 && frame[2] == 0x44 && frame[3] == 0x44) break;
char line[1000] = "";
int j;
if (len) {
for (j = 0; j < len; j++) {
int oddparity = 0x01;
int k;
for (k=0;k<8;k++) {
oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01);
}
//if((parityBits >> (len - j - 1)) & 0x01) {
if (isResponse && (oddparity != ((parityBits >> (len - j - 1)) & 0x01))) {
sprintf(line+(j*4), "%02x! ", frame[j]);
} else {
sprintf(line+(j*4), "%02x ", frame[j]);
}
}
} else {
if (ShowWaitCycles) {
uint32_t next_timestamp = (*((uint32_t *)(got+i+9))) & 0x7fffffff;
sprintf(line, "fdt (Frame Delay Time): %d", (next_timestamp - timestamp));
}
}
char *crc;
crc = "";
if (len > 2) {
uint8_t b1, b2;
for (j = 0; j < (len - 1); j++) {
// gives problems... search for the reason..
/*if(frame[j] == 0xAA) {
switch(frame[j+1]) {
case 0x01:
crc = "[1] Two drops close after each other";
break;
case 0x02:
crc = "[2] Potential SOC with a drop in second half of bitperiod";
break;
case 0x03:
crc = "[3] Segment Z after segment X is not possible";
break;
case 0x04:
crc = "[4] Parity bit of a fully received byte was wrong";
break;
default:
crc = "[?] Unknown error";
break;
}
break;
}*/
}
if (strlen(crc)==0) {
ComputeCrc14443(CRC_14443_A, frame, len-2, &b1, &b2);
if (b1 != frame[len-2] || b2 != frame[len-1]) {
crc = (isResponse & (len < 6)) ? "" : " !crc";
} else {
crc = "";
}
}
} else {
crc = ""; // SHORT
}
i += (len + 9);
EndOfTransmissionTimestamp = (*((uint32_t *)(got+i))) & 0x7fffffff;
if (!ShowWaitCycles) i += 9;
PrintAndLog(" %9d | %9d | %s | %s %s",
(timestamp - first_timestamp),
(EndOfTransmissionTimestamp - first_timestamp),
(len?(isResponse ? "Tag" : "Rdr"):" "),
line, crc);
}
return 0;
}
void iso14a_set_timeout(uint32_t timeout) {
UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_SET_TIMEOUT, 0, timeout}};
SendCommand(&c);
}
int CmdHF14AReader(const char *Cmd)
{
UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT | ISO14A_NO_DISCONNECT, 0, 0}};
SendCommand(&c);
UsbCommand resp;
WaitForResponse(CMD_ACK,&resp);
iso14a_card_select_t card;
memcpy(&card, (iso14a_card_select_t *)resp.d.asBytes, sizeof(iso14a_card_select_t));
uint64_t select_status = resp.arg[0];
if(select_status == 0) {
PrintAndLog("iso14443a card select failed");
return 0;
}
PrintAndLog("ATQA : %02x %02x", card.atqa[1], card.atqa[0]);
PrintAndLog(" UID : %s", sprint_hex(card.uid, card.uidlen));
PrintAndLog(" SAK : %02x [%d]", card.sak, resp.arg[0]);
switch (card.sak) {
case 0x00: PrintAndLog("TYPE : NXP MIFARE Ultralight | Ultralight C"); break;
case 0x04: PrintAndLog("TYPE : NXP MIFARE (various !DESFire !DESFire EV1)"); break;
case 0x08: PrintAndLog("TYPE : NXP MIFARE CLASSIC 1k | Plus 2k SL1"); break;
case 0x09: PrintAndLog("TYPE : NXP MIFARE Mini 0.3k"); break;
case 0x10: PrintAndLog("TYPE : NXP MIFARE Plus 2k SL2"); break;
case 0x11: PrintAndLog("TYPE : NXP MIFARE Plus 4k SL2"); break;
case 0x18: PrintAndLog("TYPE : NXP MIFARE Classic 4k | Plus 4k SL1"); break;
case 0x20: PrintAndLog("TYPE : NXP MIFARE DESFire 4k | DESFire EV1 2k/4k/8k | Plus 2k/4k SL3 | JCOP 31/41"); break;
case 0x24: PrintAndLog("TYPE : NXP MIFARE DESFire | DESFire EV1"); break;
case 0x28: PrintAndLog("TYPE : JCOP31 or JCOP41 v2.3.1"); break;
case 0x38: PrintAndLog("TYPE : Nokia 6212 or 6131 MIFARE CLASSIC 4K"); break;
case 0x88: PrintAndLog("TYPE : Infineon MIFARE CLASSIC 1K"); break;
case 0x98: PrintAndLog("TYPE : Gemplus MPCOS"); break;
default: ;
}
// try to request ATS even if tag claims not to support it
if (select_status == 2) {
uint8_t rats[] = { 0xE0, 0x80 }; // FSDI=8 (FSD=256), CID=0
c.arg[0] = ISO14A_RAW | ISO14A_APPEND_CRC | ISO14A_NO_DISCONNECT;
c.arg[1] = 2;
c.arg[2] = 0;
memcpy(c.d.asBytes, rats, 2);
SendCommand(&c);
WaitForResponse(CMD_ACK,&resp);
memcpy(&card.ats, resp.d.asBytes, resp.arg[0]);
card.ats_len = resp.arg[0];
}
// disconnect
c.arg[0] = 0;
c.arg[1] = 0;
c.arg[2] = 0;
SendCommand(&c);
if(card.ats_len >= 3) { // a valid ATS consists of at least the length byte TL and 2 CRC bytes
bool ta1 = 0, tb1 = 0, tc1 = 0;
int pos;
if (!(card.sak & 0x02)) {
PrintAndLog("SAK incorrectly claims that card doesn't support RATS");
}
PrintAndLog(" ATS : %s", sprint_hex(card.ats, card.ats_len));
if (card.ats_len > 0) {
PrintAndLog(" - TL : length is %d bytes", card.ats[0]);
}
if (card.ats_len > 1) {
ta1 = (card.ats[1] & 0x10) == 0x10;
tb1 = (card.ats[1] & 0x20) == 0x20;
tc1 = (card.ats[1] & 0x40) == 0x40;
PrintAndLog(" - T0 : TA1 is%s present, TB1 is%s present, "
"TC1 is%s present, FSCI is %d",
(ta1 ? "" : " NOT"), (tb1 ? "" : " NOT"), (tc1 ? "" : " NOT"),
(card.ats[1] & 0x0f));
}
pos = 2;
if (ta1 && card.ats_len > pos) {
char dr[16], ds[16];
dr[0] = ds[0] = '\0';
if (card.ats[pos] & 0x10) strcat(ds, "2, ");
if (card.ats[pos] & 0x20) strcat(ds, "4, ");
if (card.ats[pos] & 0x40) strcat(ds, "8, ");
if (card.ats[pos] & 0x01) strcat(dr, "2, ");
if (card.ats[pos] & 0x02) strcat(dr, "4, ");
if (card.ats[pos] & 0x04) strcat(dr, "8, ");
if (strlen(ds) != 0) ds[strlen(ds) - 2] = '\0';
if (strlen(dr) != 0) dr[strlen(dr) - 2] = '\0';
PrintAndLog(" - TA1 : different divisors are%s supported, "
"DR: [%s], DS: [%s]",
(card.ats[pos] & 0x80 ? " NOT" : ""), dr, ds);
pos++;
}
if (tb1 && card.ats_len > pos) {
PrintAndLog(" - TB1 : SFGI = %d, FWI = %d",
(card.ats[pos] & 0x08),
(card.ats[pos] & 0x80) >> 4);
pos++;
}
if (tc1 && card.ats_len > pos) {
PrintAndLog(" - TC1 : NAD is%s supported, CID is%s supported",
(card.ats[pos] & 0x01) ? "" : " NOT",
(card.ats[pos] & 0x02) ? "" : " NOT");
pos++;
}
if (card.ats_len > pos) {
char *tip = "";
if (card.ats_len - pos > 7) {
if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x01\xBC\xD6", 7) == 0) {
tip = "-> MIFARE Plus X 2K or 4K";
} else if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x00\x35\xC7", 7) == 0) {
tip = "-> MIFARE Plus S 2K or 4K";
}
}
PrintAndLog(" - HB : %s%s", sprint_hex(card.ats + pos, card.ats_len - pos - 2), tip);
if (card.ats[pos] == 0xC1) {
PrintAndLog(" c1 -> Mifare or (multiple) virtual cards of various type");
PrintAndLog(" %02x -> Length is %d bytes",
card.ats[pos + 1], card.ats[pos + 1]);
switch (card.ats[pos + 2] & 0xf0) {
case 0x10:
PrintAndLog(" 1x -> MIFARE DESFire");
break;
case 0x20:
PrintAndLog(" 2x -> MIFARE Plus");
break;
}
switch (card.ats[pos + 2] & 0x0f) {
case 0x00:
PrintAndLog(" x0 -> <1 kByte");
break;
case 0x01:
PrintAndLog(" x0 -> 1 kByte");
break;
case 0x02:
PrintAndLog(" x0 -> 2 kByte");
break;
case 0x03:
PrintAndLog(" x0 -> 4 kByte");
break;
case 0x04:
PrintAndLog(" x0 -> 8 kByte");
break;
}
switch (card.ats[pos + 3] & 0xf0) {
case 0x00:
PrintAndLog(" 0x -> Engineering sample");
break;
case 0x20:
PrintAndLog(" 2x -> Released");
break;
}
switch (card.ats[pos + 3] & 0x0f) {
case 0x00:
PrintAndLog(" x0 -> Generation 1");
break;
case 0x01:
PrintAndLog(" x1 -> Generation 2");
break;
case 0x02:
PrintAndLog(" x2 -> Generation 3");
break;
}
switch (card.ats[pos + 4] & 0x0f) {
case 0x00:
PrintAndLog(" x0 -> Only VCSL supported");
break;
case 0x01:
PrintAndLog(" x1 -> VCS, VCSL, and SVC supported");
break;
case 0x0E:
PrintAndLog(" xE -> no VCS command supported");
break;
}
}
}
} else {
PrintAndLog("proprietary non iso14443-4 card found, RATS not supported");
}
return select_status;
}
// Collect ISO14443 Type A UIDs
int CmdHF14ACUIDs(const char *Cmd)
{
// requested number of UIDs
int n = atoi(Cmd);
// collect at least 1 (e.g. if no parameter was given)
n = n > 0 ? n : 1;
PrintAndLog("Collecting %d UIDs", n);
PrintAndLog("Start: %u", time(NULL));
// repeat n times
for (int i = 0; i < n; i++) {
// execute anticollision procedure
UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT, 0, 0}};
SendCommand(&c);
UsbCommand resp;
WaitForResponse(CMD_ACK,&resp);
iso14a_card_select_t *card = (iso14a_card_select_t *) resp.d.asBytes;
// check if command failed
if (resp.arg[0] == 0) {
PrintAndLog("Card select failed.");
} else {
char uid_string[20];
for (uint16_t i = 0; i < card->uidlen; i++) {
sprintf(&uid_string[2*i], "%02X", card->uid[i]);
}
PrintAndLog("%s", uid_string);
}
}
PrintAndLog("End: %u", time(NULL));
return 1;
}
// ## simulate iso14443a tag
// ## greg - added ability to specify tag UID
int CmdHF14ASim(const char *Cmd)
{
UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,{0,0,0}};
// Retrieve the tag type
uint8_t tagtype = param_get8ex(Cmd,0,0,10);
// When no argument was given, just print help message
if (tagtype == 0) {
PrintAndLog("");
PrintAndLog(" Emulating ISO/IEC 14443 type A tag with 4 or 7 byte UID");
PrintAndLog("");
PrintAndLog(" syntax: hf 14a sim <type> <uid>");
PrintAndLog(" types: 1 = MIFARE Classic");
PrintAndLog(" 2 = MIFARE Ultralight");
PrintAndLog(" 3 = MIFARE DESFIRE");
PrintAndLog(" 4 = ISO/IEC 14443-4");
PrintAndLog("");
return 1;
}
// Store the tag type
c.arg[0] = tagtype;
// Retrieve the full 4 or 7 byte long uid
uint64_t long_uid = param_get64ex(Cmd,1,0,16);
// Are we handling the (optional) second part uid?
if (long_uid > 0xffffffff) {
PrintAndLog("Emulating ISO/IEC 14443 type A tag with 7 byte UID (%014"llx")",long_uid);
// Store the second part
c.arg[2] = (long_uid & 0xffffffff);
long_uid >>= 32;
// Store the first part, ignore the first byte, it is replaced by cascade byte (0x88)
c.arg[1] = (long_uid & 0xffffff);
} else {
PrintAndLog("Emulating ISO/IEC 14443 type A tag with 4 byte UID (%08x)",long_uid);
// Only store the first part
c.arg[1] = long_uid & 0xffffffff;
}
/*
// At lease save the mandatory first part of the UID
c.arg[0] = long_uid & 0xffffffff;
// At lease save the mandatory first part of the UID
c.arg[0] = long_uid & 0xffffffff;
if (c.arg[1] == 0) {
PrintAndLog("Emulating ISO/IEC 14443 type A tag with UID %01d %08x %08x",c.arg[0],c.arg[1],c.arg[2]);
}
switch (c.arg[0]) {
case 1: {
PrintAndLog("Emulating ISO/IEC 14443-3 type A tag with 4 byte UID");
UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,param_get32ex(Cmd,0,0,10),param_get32ex(Cmd,1,0,16),param_get32ex(Cmd,2,0,16)};
} break;
case 2: {
PrintAndLog("Emulating ISO/IEC 14443-4 type A tag with 7 byte UID");
} break;
default: {
PrintAndLog("Error: unkown tag type (%d)",c.arg[0]);
PrintAndLog("syntax: hf 14a sim <uid>",c.arg[0]);
PrintAndLog(" type1: 4 ",c.arg[0]);
return 1;
} break;
}
*/
/*
unsigned int hi = 0, lo = 0;
int n = 0, i = 0;
while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
hi= (hi << 4) | (lo >> 28);
lo= (lo << 4) | (n & 0xf);
}
*/
// UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,param_get32ex(Cmd,0,0,10),param_get32ex(Cmd,1,0,16),param_get32ex(Cmd,2,0,16)};
// PrintAndLog("Emulating ISO/IEC 14443 type A tag with UID %01d %08x %08x",c.arg[0],c.arg[1],c.arg[2]);
SendCommand(&c);
return 0;
}
int CmdHF14ASnoop(const char *Cmd) {
int param = 0;
if (param_getchar(Cmd, 0) == 'h') {
PrintAndLog("It get data from the field and saves it into command buffer.");
PrintAndLog("Buffer accessible from command hf 14a list.");
PrintAndLog("Usage: hf 14a snoop [c][r]");
PrintAndLog("c - triggered by first data from card");
PrintAndLog("r - triggered by first 7-bit request from reader (REQ,WUP,...)");
PrintAndLog("sample: hf 14a snoop c r");
return 0;
}
for (int i = 0; i < 2; i++) {
char ctmp = param_getchar(Cmd, i);
if (ctmp == 'c' || ctmp == 'C') param |= 0x01;
if (ctmp == 'r' || ctmp == 'R') param |= 0x02;
}
UsbCommand c = {CMD_SNOOP_ISO_14443a, {param, 0, 0}};
SendCommand(&c);
return 0;
}
int CmdHF14ACmdRaw(const char *cmd) {
UsbCommand c = {CMD_READER_ISO_14443a, {0, 0, 0}};
uint8_t reply=1;
uint8_t crc=0;
uint8_t power=0;
uint8_t active=0;
uint8_t active_select=0;
uint16_t numbits=0;
char buf[5]="";
int i=0;
uint8_t data[100];
unsigned int datalen=0, temp;
if (strlen(cmd)<2) {
PrintAndLog("Usage: hf 14a raw [-r] [-c] [-p] [-f] [-b] <number of bits> <0A 0B 0C ... hex>");
PrintAndLog(" -r do not read response");
PrintAndLog(" -c calculate and append CRC");
PrintAndLog(" -p leave the signal field ON after receive");
PrintAndLog(" -a active signal field ON without select");
PrintAndLog(" -s active signal field ON with select");
PrintAndLog(" -b number of bits to send. Useful for send partial byte");
return 0;
}
// strip
while (*cmd==' ' || *cmd=='\t') cmd++;
while (cmd[i]!='\0') {
if (cmd[i]==' ' || cmd[i]=='\t') { i++; continue; }
if (cmd[i]=='-') {
switch (cmd[i+1]) {
case 'r':
reply=0;
break;
case 'c':
crc=1;
break;
case 'p':
power=1;
break;
case 'a':
active=1;
break;
case 's':
active_select=1;
break;
case 'b':
sscanf(cmd+i+2,"%d",&temp);
numbits = temp & 0xFFFF;
i+=3;
while(cmd[i]!=' ' && cmd[i]!='\0') { i++; }
i-=2;
break;
default:
PrintAndLog("Invalid option");
return 0;
}
i+=2;
continue;
}
if ((cmd[i]>='0' && cmd[i]<='9') ||
(cmd[i]>='a' && cmd[i]<='f') ||
(cmd[i]>='A' && cmd[i]<='F') ) {
buf[strlen(buf)+1]=0;
buf[strlen(buf)]=cmd[i];
i++;
if (strlen(buf)>=2) {
sscanf(buf,"%x",&temp);
data[datalen]=(uint8_t)(temp & 0xff);
datalen++;
*buf=0;
}
continue;
}
PrintAndLog("Invalid char on input");
return 0;
}
if(crc && datalen>0)
{
uint8_t first, second;
ComputeCrc14443(CRC_14443_A, data, datalen, &first, &second);
data[datalen++] = first;
data[datalen++] = second;
}
if(active || active_select)
{
c.arg[0] |= ISO14A_CONNECT;
if(active)
c.arg[0] |= ISO14A_NO_SELECT;
}
if(power)
c.arg[0] |= ISO14A_NO_DISCONNECT;
if(datalen>0)
c.arg[0] |= ISO14A_RAW;
c.arg[1] = datalen;
c.arg[2] = numbits;
memcpy(c.d.asBytes,data,datalen);
SendCommand(&c);
if (reply) {
if(active_select)
waitCmd(1);
if(datalen>0)
waitCmd(0);
} // if reply
return 0;
}
static void waitCmd(uint8_t iSelect)
{
uint8_t *recv;
UsbCommand resp;
char *hexout;
if (WaitForResponseTimeout(CMD_ACK,&resp,1000)) {
recv = resp.d.asBytes;
uint8_t iLen = iSelect ? resp.arg[1] : resp.arg[0];
PrintAndLog("received %i octets",iLen);
if(!iLen)
return;
hexout = (char *)malloc(iLen * 3 + 1);
if (hexout != NULL) {
for (int i = 0; i < iLen; i++) { // data in hex
sprintf(&hexout[i * 3], "%02X ", recv[i]);
}
PrintAndLog("%s", hexout);
free(hexout);
} else {
PrintAndLog("malloc failed your client has low memory?");
}
} else {
PrintAndLog("timeout while waiting for reply.");
}
}
static command_t CommandTable[] =
{
{"help", CmdHelp, 1, "This help"},
{"list", CmdHF14AList, 0, "List ISO 14443a history"},
{"reader", CmdHF14AReader, 0, "Act like an ISO14443 Type A reader"},
{"cuids", CmdHF14ACUIDs, 0, "<n> Collect n>0 ISO14443 Type A UIDs in one go"},
{"sim", CmdHF14ASim, 0, "<UID> -- Fake ISO 14443a tag"},
{"snoop", CmdHF14ASnoop, 0, "Eavesdrop ISO 14443 Type A"},
{"raw", CmdHF14ACmdRaw, 0, "Send raw hex data to tag"},
{NULL, NULL, 0, NULL}
};
int CmdHF14A(const char *Cmd) {
// flush
WaitForResponseTimeout(CMD_ACK,NULL,100);
// parse
CmdsParse(CommandTable, Cmd);
return 0;
}
int CmdHelp(const char *Cmd)
{
CmdsHelp(CommandTable);
return 0;
}
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