proxmark3/client/cmdlfio.c
pwpiwi ad939de501
USB comms: part 4 towards @micolous PR #463
* make uart_communication(), storeCommand() and getCommand() static in comms.c
* move receiver thread creation and respective mutexes to comms.c
* add mutex and signal for tx buffer
* use comms.c for flasher as well
* remove comm functions from client/proxmark3.h
* this completes isolating all USB communication related functions in comms.c
* don't assume a port to be defined by a name. Change parameter in OpenProxmark() to void*
* comms.c: set sp and serial_port_name to NULL when offline
2018-06-03 14:25:20 +02:00

179 lines
6.3 KiB
C

//-----------------------------------------------------------------------------
//
// 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.
//-----------------------------------------------------------------------------
// Low frequency ioProx commands
// FSK2a, rf/64, 64 bits (complete)
//-----------------------------------------------------------------------------
#include "cmdlfio.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include <limits.h>
#include "comms.h"
#include "graph.h"
#include "ui.h"
#include "cmdparser.h"
#include "cmdmain.h"
#include "cmddata.h"
#include "cmdlf.h"
#include "lfdemod.h" //for IOdemodFSK + bytebits_to_byte
#include "util.h" //for sprint_bin_break
static int CmdHelp(const char *Cmd);
int CmdIOReadFSK(const char *Cmd)
{
int findone=0;
if(Cmd[0]=='1') findone=1;
UsbCommand c={CMD_IO_DEMOD_FSK};
c.arg[0]=findone;
SendCommand(&c);
return 0;
}
//by marshmellow
//IO-Prox demod - FSK RF/64 with preamble of 000000001
//print ioprox ID and some format details
int CmdFSKdemodIO(const char *Cmd)
{
int idx=0;
//something in graphbuffer?
if (GraphTraceLen < 65) {
if (g_debugMode)PrintAndLog("DEBUG: not enough samples in GraphBuffer");
return 0;
}
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
size_t BitLen = getFromGraphBuf(BitStream);
if (BitLen==0) return 0;
int waveIdx = 0;
//get binary from fsk wave
idx = IOdemodFSK(BitStream,BitLen, &waveIdx);
if (idx<0){
if (g_debugMode){
if (idx==-1){
PrintAndLog("DEBUG: Just Noise Detected");
} else if (idx == -2) {
PrintAndLog("DEBUG: not enough samples");
} else if (idx == -3) {
PrintAndLog("DEBUG: error during fskdemod");
} else if (idx == -4) {
PrintAndLog("DEBUG: Preamble not found");
} else if (idx == -5) {
PrintAndLog("DEBUG: Separator bits not found");
} else {
PrintAndLog("DEBUG: Error demoding fsk %d", idx);
}
}
return 0;
}
if (idx==0){
if (g_debugMode){
PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen);
if (BitLen > 92) PrintAndLog("%s", sprint_bin_break(BitStream,92,16));
}
return 0;
}
//Index map
//0 10 20 30 40 50 60
//| | | | | | |
//01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
//-----------------------------------------------------------------------------
//00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
//
//XSF(version)facility:codeone+codetwo (raw)
//Handle the data
if (idx+64>BitLen) {
if (g_debugMode) PrintAndLog("not enough bits found - bitlen: %d",BitLen);
return 0;
}
PrintAndLog("%d%d%d%d%d%d%d%d %d",BitStream[idx], BitStream[idx+1], BitStream[idx+2], BitStream[idx+3], BitStream[idx+4], BitStream[idx+5], BitStream[idx+6], BitStream[idx+7], BitStream[idx+8]);
PrintAndLog("%d%d%d%d%d%d%d%d %d",BitStream[idx+9], BitStream[idx+10], BitStream[idx+11],BitStream[idx+12],BitStream[idx+13],BitStream[idx+14],BitStream[idx+15],BitStream[idx+16],BitStream[idx+17]);
PrintAndLog("%d%d%d%d%d%d%d%d %d facility",BitStream[idx+18], BitStream[idx+19], BitStream[idx+20],BitStream[idx+21],BitStream[idx+22],BitStream[idx+23],BitStream[idx+24],BitStream[idx+25],BitStream[idx+26]);
PrintAndLog("%d%d%d%d%d%d%d%d %d version",BitStream[idx+27], BitStream[idx+28], BitStream[idx+29],BitStream[idx+30],BitStream[idx+31],BitStream[idx+32],BitStream[idx+33],BitStream[idx+34],BitStream[idx+35]);
PrintAndLog("%d%d%d%d%d%d%d%d %d code1",BitStream[idx+36], BitStream[idx+37], BitStream[idx+38],BitStream[idx+39],BitStream[idx+40],BitStream[idx+41],BitStream[idx+42],BitStream[idx+43],BitStream[idx+44]);
PrintAndLog("%d%d%d%d%d%d%d%d %d code2",BitStream[idx+45], BitStream[idx+46], BitStream[idx+47],BitStream[idx+48],BitStream[idx+49],BitStream[idx+50],BitStream[idx+51],BitStream[idx+52],BitStream[idx+53]);
PrintAndLog("%d%d%d%d%d%d%d%d %d%d checksum",BitStream[idx+54],BitStream[idx+55],BitStream[idx+56],BitStream[idx+57],BitStream[idx+58],BitStream[idx+59],BitStream[idx+60],BitStream[idx+61],BitStream[idx+62],BitStream[idx+63]);
uint32_t code = bytebits_to_byte(BitStream+idx,32);
uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32);
uint8_t version = bytebits_to_byte(BitStream+idx+27,8); //14,4
uint8_t facilitycode = bytebits_to_byte(BitStream+idx+18,8) ;
uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9
uint8_t crc = bytebits_to_byte(BitStream+idx+54,8);
uint16_t calccrc = 0;
for (uint8_t i=1; i<6; ++i){
calccrc += bytebits_to_byte(BitStream+idx+9*i,8);
}
calccrc &= 0xff;
calccrc = 0xff - calccrc;
char *crcStr = (crc == calccrc) ? "crc ok": "!crc";
PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x) [%02x %s]",version,facilitycode,number,code,code2, crc, crcStr);
setDemodBuf(BitStream,64,idx);
setClockGrid(64, waveIdx + (idx*64));
if (g_debugMode){
PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx,64);
printDemodBuff();
}
return 1;
}
int CmdIOClone(const char *Cmd)
{
unsigned int hi = 0, lo = 0;
int n = 0, i = 0;
char ch;
UsbCommand c;
while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
hi = (hi << 4) | (lo >> 28);
lo = (lo << 4) | (n & 0xf);
}
if (sscanf(&Cmd[--i], "%c", &ch) == 1) {
PrintAndLog("Usage: lf io clone <tag-ID>");
return 0;
}
PrintAndLog("Cloning ioProx tag with ID %08x %08x", hi, lo);
c.cmd = CMD_IO_CLONE_TAG;
c.arg[0] = hi;
c.arg[1] = lo;
SendCommand(&c);
return 0;
}
static command_t CommandTable[] =
{
{"help", CmdHelp, 1, "This help"},
{"demod", CmdFSKdemodIO, 1, "Demodulate IO Prox tag from the GraphBuffer"},
{"read", CmdIOReadFSK, 0, "['1'] Realtime IO FSK demodulate from antenna (option '1' for one tag only)"},
{"clone", CmdIOClone, 0, "Clone ioProx Tag"},
{NULL, NULL, 0, NULL}
};
int CmdLFIO(const char *Cmd)
{
CmdsParse(CommandTable, Cmd);
return 0;
}
int CmdHelp(const char *Cmd)
{
CmdsHelp(CommandTable);
return 0;
}