454 lines
11 KiB
C
454 lines
11 KiB
C
|
/*
|
||
|
|
atr.c
|
||
|
|
ISO 7816 ICC's answer to reset abstract data type implementation
|
||
|
|
|
||
|
|
This file is part of the Unix driver for Towitoko smartcard readers
|
||
|
|
Copyright (C) 2000 Carlos Prados <cprados@yahoo.com>
|
||
|
|
|
||
|
|
This version is modified by doz21 to work in a special manner ;)
|
||
|
|
|
||
|
|
This library is free software; you can redistribute it and/or
|
||
|
|
modify it under the terms of the GNU Lesser General Public
|
||
|
|
License as published by the Free Software Foundation; either
|
||
|
|
version 2 of the License, or (at your option) any later version.
|
||
|
|
|
||
|
|
This library is distributed in the hope that it will be useful,
|
||
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
|
Lesser General Public License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU Lesser General Public
|
||
|
|
License along with this library; if not, write to the Free Software
|
||
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||
|
|
*/
|
||
|
|
#include "../globals.h"
|
||
|
|
#include "atr.h"
|
||
|
|
#define ERROR 1
|
||
|
|
|
||
|
|
const uint32_t atr_fs_table[16] = {5000000L, 5000000L, 6000000L, 8000000L, 12000000L, 16000000L, 20000000L, 0, 0, 5000000L, 7500000L, 10000000L, 15000000L, 20000000L, 0, 0};
|
||
|
|
const uint32_t atr_f_table[16] = {372, 372, 558, 744, 1116, 1488, 1860, 0, 0, 512, 768, 1024, 1536, 2048, 0, 0};
|
||
|
|
const double atr_d_table[16] = {0, 1, 2, 4, 8, 16, 32, 64, 12, 20, 0, 0, 0, 0, 0, 0};
|
||
|
|
|
||
|
|
#ifdef WITH_CARDREADER
|
||
|
|
int32_t ATR_InitFromArray(ATR *atr, const unsigned char atr_buffer[ATR_MAX_SIZE], uint32_t length)
|
||
|
|
{
|
||
|
|
unsigned char TDi;
|
||
|
|
unsigned char buffer[ATR_MAX_SIZE] = "\x00";
|
||
|
|
uint32_t pointer = 0, pn = 0;
|
||
|
|
static const uint32_t atr_num_ib_table[16] = {0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4};
|
||
|
|
|
||
|
|
/* Check size of buffer */
|
||
|
|
if(length < 2)
|
||
|
|
{
|
||
|
|
cs_log_dbg(D_ATR, "ERROR: this ATR length is %d and minimum length is 2", length);
|
||
|
|
return (ERROR);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Check if ATR is from a inverse convention card */
|
||
|
|
if(atr_buffer[0] == 0x03) // Readers of type R_MOUSE need this in case of inverse convention cards!
|
||
|
|
{
|
||
|
|
for(pointer = 0; pointer < length; pointer++)
|
||
|
|
{ buffer[pointer] = ~(INVERT_BYTE(atr_buffer[pointer])); }
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
memcpy(buffer, atr_buffer, length);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Store T0 and TS */
|
||
|
|
atr->TS = buffer[0];
|
||
|
|
|
||
|
|
atr->T0 = TDi = buffer[1];
|
||
|
|
pointer = 1;
|
||
|
|
|
||
|
|
/* Store number of historical bytes */
|
||
|
|
atr->hbn = TDi & 0x0F;
|
||
|
|
|
||
|
|
/* TCK is not present by default */
|
||
|
|
(atr->TCK).present = 0;
|
||
|
|
|
||
|
|
/* Extract interface bytes */
|
||
|
|
while(pointer < length)
|
||
|
|
{
|
||
|
|
/* Check buffer is long enought */
|
||
|
|
if(pointer + atr_num_ib_table[(0xF0 & TDi) >> 4] >= length)
|
||
|
|
{
|
||
|
|
cs_log_dbg(D_ATR, "ERROR: this ATR the %d interface bytes for protocol %d are missing", pointer + atr_num_ib_table[(0xF0 & TDi) >> 4], pn + 1);
|
||
|
|
return (ERROR);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Check TAi is present */
|
||
|
|
if((TDi | 0xEF) == 0xFF)
|
||
|
|
{
|
||
|
|
pointer++;
|
||
|
|
atr->ib[pn][ATR_INTERFACE_BYTE_TA].value = buffer[pointer];
|
||
|
|
atr->ib[pn][ATR_INTERFACE_BYTE_TA].present = 1;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
atr->ib[pn][ATR_INTERFACE_BYTE_TA].present = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Check TBi is present */
|
||
|
|
if((TDi | 0xDF) == 0xFF)
|
||
|
|
{
|
||
|
|
pointer++;
|
||
|
|
atr->ib[pn][ATR_INTERFACE_BYTE_TB].value = buffer[pointer];
|
||
|
|
atr->ib[pn][ATR_INTERFACE_BYTE_TB].present = 1;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
atr->ib[pn][ATR_INTERFACE_BYTE_TB].present = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Check TCi is present */
|
||
|
|
if((TDi | 0xBF) == 0xFF)
|
||
|
|
{
|
||
|
|
pointer++;
|
||
|
|
atr->ib[pn][ATR_INTERFACE_BYTE_TC].value = buffer[pointer];
|
||
|
|
atr->ib[pn][ATR_INTERFACE_BYTE_TC].present = 1;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
atr->ib[pn][ATR_INTERFACE_BYTE_TC].present = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Read TDi if present */
|
||
|
|
if((TDi | 0x7F) == 0xFF)
|
||
|
|
{
|
||
|
|
pointer++;
|
||
|
|
TDi = atr->ib[pn][ATR_INTERFACE_BYTE_TD].value = buffer[pointer];
|
||
|
|
atr->ib[pn][ATR_INTERFACE_BYTE_TD].present = 1;
|
||
|
|
(atr->TCK).present = ((TDi & 0x0F) != ATR_PROTOCOL_TYPE_T0);
|
||
|
|
if(pn >= ATR_MAX_PROTOCOLS)
|
||
|
|
{
|
||
|
|
cs_log_dbg(D_ATR, "ERROR: this ATR reports %d protocols but the maximum value is %d", pn + 1, ATR_MAX_PROTOCOLS + 1);
|
||
|
|
return (ERROR);
|
||
|
|
}
|
||
|
|
pn++;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
atr->ib[pn][ATR_INTERFACE_BYTE_TD].present = 0;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Store number of protocols */
|
||
|
|
atr->pn = pn + 1;
|
||
|
|
|
||
|
|
/* Store historical bytes */
|
||
|
|
if(pointer + atr->hbn >= length)
|
||
|
|
{
|
||
|
|
cs_log_dbg(D_ATR, "ERROR: this ATR reports %i historical bytes but there are only %i", atr->hbn, length - pointer - 2);
|
||
|
|
if(length - pointer >= 2)
|
||
|
|
{ atr->hbn = length - pointer - 2; }
|
||
|
|
else
|
||
|
|
{
|
||
|
|
atr->hbn = 0;
|
||
|
|
atr->length = pointer + 1;
|
||
|
|
return (ERROR);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
memcpy(atr->hb, buffer + pointer + 1, atr->hbn);
|
||
|
|
pointer += (atr->hbn);
|
||
|
|
|
||
|
|
/* Store TCK */
|
||
|
|
if((atr->TCK).present)
|
||
|
|
{
|
||
|
|
if(pointer + 1 >= length)
|
||
|
|
{
|
||
|
|
cs_log_dbg(D_ATR, "ATR is malformed, this ATR should have a TCK byte but it was not received!");
|
||
|
|
return (ATR_MALFORMED);
|
||
|
|
}
|
||
|
|
pointer++;
|
||
|
|
|
||
|
|
(atr->TCK).value = buffer[pointer];
|
||
|
|
}
|
||
|
|
|
||
|
|
atr->length = pointer + 1;
|
||
|
|
|
||
|
|
// check that TA1, if pn==1 , has a valid value for FI
|
||
|
|
if(atr->pn == 1 && atr->ib[pn][ATR_INTERFACE_BYTE_TA].present == 1)
|
||
|
|
{
|
||
|
|
uint8_t FI;
|
||
|
|
cs_log_dbg(D_ATR, "TA1 = %02x", atr->ib[pn][ATR_INTERFACE_BYTE_TA].value);
|
||
|
|
FI = (atr->ib[pn][ATR_INTERFACE_BYTE_TA].value & 0xF0) >> 4;
|
||
|
|
cs_log_dbg(D_ATR, "FI = %02x", FI);
|
||
|
|
if(atr_fs_table[FI] == 0)
|
||
|
|
{
|
||
|
|
cs_log_dbg(D_ATR, "ERROR: this ATR FI for protocol %d is not returning a valid cardfrequency value", pn + 1);
|
||
|
|
return (ERROR);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// check that TB1 < 0x80
|
||
|
|
if(atr->pn == 1 && atr->ib[pn][ATR_INTERFACE_BYTE_TB].present == 1)
|
||
|
|
{
|
||
|
|
if(atr->ib[pn][ATR_INTERFACE_BYTE_TB].value > 0x80)
|
||
|
|
{
|
||
|
|
cs_log_dbg(D_ATR, "ERROR: this ATR TB1 for protocol %d has an invalid value", pn + 1);
|
||
|
|
return (ERROR);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return (ATR_OK);
|
||
|
|
}
|
||
|
|
|
||
|
|
int32_t ATR_GetConvention(ATR *atr, int32_t *convention)
|
||
|
|
{
|
||
|
|
if(atr->TS == 0x3B || atr->TS == 0xDB)
|
||
|
|
{ (*convention) = ATR_CONVENTION_DIRECT; }
|
||
|
|
else if(atr->TS == 0x3F)
|
||
|
|
{ (*convention) = ATR_CONVENTION_INVERSE; }
|
||
|
|
else
|
||
|
|
{
|
||
|
|
cs_log_dbg(D_ATR, "ERROR: this ATR TS byte is %02X and that should be 3B for direct or 3F for inverse convention!", atr->TS);
|
||
|
|
return (ERROR);
|
||
|
|
}
|
||
|
|
|
||
|
|
return (ATR_OK);
|
||
|
|
}
|
||
|
|
|
||
|
|
int32_t ATR_GetSize(ATR *atr, uint32_t *size)
|
||
|
|
{
|
||
|
|
(*size) = atr->length;
|
||
|
|
return (ATR_OK);
|
||
|
|
}
|
||
|
|
|
||
|
|
int32_t ATR_GetNumberOfProtocols(ATR *atr, uint32_t *number_protocols)
|
||
|
|
{
|
||
|
|
(*number_protocols) = atr->pn;
|
||
|
|
return (ATR_OK);
|
||
|
|
}
|
||
|
|
|
||
|
|
int32_t ATR_GetProtocolType(ATR *atr, uint32_t number_protocol, unsigned char *protocol_type)
|
||
|
|
{
|
||
|
|
if((number_protocol > atr->pn) || number_protocol < 1)
|
||
|
|
{ return ATR_NOT_FOUND; }
|
||
|
|
|
||
|
|
if(atr->ib[number_protocol - 1][ATR_INTERFACE_BYTE_TD].present)
|
||
|
|
{ (*protocol_type) = (atr->ib[number_protocol - 1][ATR_INTERFACE_BYTE_TD].value & 0x0F); }
|
||
|
|
else
|
||
|
|
{ (*protocol_type) = ATR_PROTOCOL_TYPE_T0; }
|
||
|
|
|
||
|
|
return (ATR_OK);
|
||
|
|
}
|
||
|
|
|
||
|
|
int32_t ATR_GetInterfaceByte(ATR *atr, uint32_t number, int32_t character, unsigned char *value)
|
||
|
|
{
|
||
|
|
if(number > atr->pn || number < 1)
|
||
|
|
{ return (ATR_NOT_FOUND); }
|
||
|
|
|
||
|
|
if(atr->ib[number - 1][character].present && (character == ATR_INTERFACE_BYTE_TA || character == ATR_INTERFACE_BYTE_TB || character == ATR_INTERFACE_BYTE_TC || character == ATR_INTERFACE_BYTE_TD))
|
||
|
|
{ (*value) = atr->ib[number - 1][character].value; }
|
||
|
|
else
|
||
|
|
{ return (ATR_NOT_FOUND); }
|
||
|
|
|
||
|
|
return (ATR_OK);
|
||
|
|
}
|
||
|
|
|
||
|
|
int32_t ATR_GetIntegerValue(ATR *atr, int32_t name, unsigned char *value)
|
||
|
|
{
|
||
|
|
int32_t ret;
|
||
|
|
|
||
|
|
if(name == ATR_INTEGER_VALUE_FI)
|
||
|
|
{
|
||
|
|
if(atr->ib[0][ATR_INTERFACE_BYTE_TA].present)
|
||
|
|
{
|
||
|
|
(*value) = (atr->ib[0][ATR_INTERFACE_BYTE_TA].value & 0xF0) >> 4;
|
||
|
|
ret = ATR_OK;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
ret = ATR_NOT_FOUND;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if(name == ATR_INTEGER_VALUE_DI)
|
||
|
|
{
|
||
|
|
if(atr->ib[0][ATR_INTERFACE_BYTE_TA].present)
|
||
|
|
{
|
||
|
|
(*value) = (atr->ib[0][ATR_INTERFACE_BYTE_TA].value & 0x0F);
|
||
|
|
ret = ATR_OK;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
ret = ATR_NOT_FOUND;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if(name == ATR_INTEGER_VALUE_II)
|
||
|
|
{
|
||
|
|
if(atr->ib[0][ATR_INTERFACE_BYTE_TB].present)
|
||
|
|
{
|
||
|
|
(*value) = (atr->ib[0][ATR_INTERFACE_BYTE_TB].value & 0x60) >> 5;
|
||
|
|
ret = ATR_OK;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
ret = ATR_NOT_FOUND;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if(name == ATR_INTEGER_VALUE_PI1)
|
||
|
|
{
|
||
|
|
if(atr->ib[0][ATR_INTERFACE_BYTE_TB].present)
|
||
|
|
{
|
||
|
|
(*value) = (atr->ib[0][ATR_INTERFACE_BYTE_TB].value & 0x1F);
|
||
|
|
ret = ATR_OK;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
ret = ATR_NOT_FOUND;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if(name == ATR_INTEGER_VALUE_PI2)
|
||
|
|
{
|
||
|
|
if(atr->ib[1][ATR_INTERFACE_BYTE_TB].present)
|
||
|
|
{
|
||
|
|
(*value) = atr->ib[1][ATR_INTERFACE_BYTE_TB].value;
|
||
|
|
ret = ATR_OK;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
ret = ATR_NOT_FOUND;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if(name == ATR_INTEGER_VALUE_N)
|
||
|
|
{
|
||
|
|
if(atr->ib[0][ATR_INTERFACE_BYTE_TC].present)
|
||
|
|
{
|
||
|
|
(*value) = atr->ib[0][ATR_INTERFACE_BYTE_TC].value;
|
||
|
|
ret = ATR_OK;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
ret = ATR_NOT_FOUND;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
ret = ATR_NOT_FOUND;
|
||
|
|
}
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
int32_t ATR_GetParameter(ATR *atr, int32_t name, uint32_t *parameter)
|
||
|
|
{
|
||
|
|
unsigned char FI, DI, II, PI1, PI2, N;
|
||
|
|
static const uint32_t atr_i_table[4] = {25, 50, 100, 0};
|
||
|
|
if(name == ATR_PARAMETER_F)
|
||
|
|
{
|
||
|
|
if(ATR_GetIntegerValue(atr, ATR_INTEGER_VALUE_FI, &FI) != ATR_OK)
|
||
|
|
{ FI = ATR_DEFAULT_FI; }
|
||
|
|
(*parameter) = (double)(atr_f_table[FI]);
|
||
|
|
return (ATR_OK);
|
||
|
|
}
|
||
|
|
else if(name == ATR_PARAMETER_D)
|
||
|
|
{
|
||
|
|
if(ATR_GetIntegerValue(atr, ATR_INTEGER_VALUE_DI, &DI) == ATR_OK)
|
||
|
|
{ (*parameter) = (double)(atr_d_table[DI]); }
|
||
|
|
else
|
||
|
|
{ (*parameter) = (double) ATR_DEFAULT_D; }
|
||
|
|
return (ATR_OK);
|
||
|
|
}
|
||
|
|
else if(name == ATR_PARAMETER_I)
|
||
|
|
{
|
||
|
|
if(ATR_GetIntegerValue(atr, ATR_INTEGER_VALUE_II, &II) == ATR_OK)
|
||
|
|
{ (*parameter) = (double)(atr_i_table[II]); }
|
||
|
|
else
|
||
|
|
{ (*parameter) = ATR_DEFAULT_I; }
|
||
|
|
return (ATR_OK);
|
||
|
|
}
|
||
|
|
else if(name == ATR_PARAMETER_P)
|
||
|
|
{
|
||
|
|
if(ATR_GetIntegerValue(atr, ATR_INTEGER_VALUE_PI2, &PI2) == ATR_OK)
|
||
|
|
{ (*parameter) = (double) PI2; }
|
||
|
|
else if(ATR_GetIntegerValue(atr, ATR_INTEGER_VALUE_PI1, &PI1) == ATR_OK)
|
||
|
|
{ (*parameter) = (double) PI1; }
|
||
|
|
else
|
||
|
|
{ (*parameter) = (double) ATR_DEFAULT_P; }
|
||
|
|
return (ATR_OK);
|
||
|
|
}
|
||
|
|
else if(name == ATR_PARAMETER_N)
|
||
|
|
{
|
||
|
|
if(ATR_GetIntegerValue(atr, ATR_INTEGER_VALUE_N, &N) == ATR_OK)
|
||
|
|
{ (*parameter) = (double) N; }
|
||
|
|
else
|
||
|
|
{ (*parameter) = (double) ATR_DEFAULT_N; }
|
||
|
|
return (ATR_OK);
|
||
|
|
}
|
||
|
|
|
||
|
|
return (ATR_NOT_FOUND);
|
||
|
|
}
|
||
|
|
|
||
|
|
int32_t ATR_GetHistoricalBytes(ATR *atr, unsigned char *hist, uint32_t *length)
|
||
|
|
{
|
||
|
|
if(atr->hbn == 0)
|
||
|
|
{ return (ATR_NOT_FOUND); }
|
||
|
|
|
||
|
|
(*length) = atr->hbn;
|
||
|
|
memcpy(hist, atr->hb, atr->hbn);
|
||
|
|
return (ATR_OK);
|
||
|
|
}
|
||
|
|
|
||
|
|
int32_t ATR_GetRaw(ATR *atr, unsigned char *buffer, uint32_t *length)
|
||
|
|
{
|
||
|
|
uint32_t i, j;
|
||
|
|
|
||
|
|
buffer[0] = atr->TS;
|
||
|
|
buffer[1] = atr->T0;
|
||
|
|
|
||
|
|
j = 2;
|
||
|
|
|
||
|
|
for(i = 0; i < atr->pn; i++)
|
||
|
|
{
|
||
|
|
if(atr->ib[i][ATR_INTERFACE_BYTE_TA].present)
|
||
|
|
{ buffer[j++] = atr->ib[i][ATR_INTERFACE_BYTE_TA].value; }
|
||
|
|
|
||
|
|
if(atr->ib[i][ATR_INTERFACE_BYTE_TB].present)
|
||
|
|
{ buffer[j++] = atr->ib[i][ATR_INTERFACE_BYTE_TB].value; }
|
||
|
|
|
||
|
|
if(atr->ib[i][ATR_INTERFACE_BYTE_TC].present)
|
||
|
|
{ buffer[j++] = atr->ib[i][ATR_INTERFACE_BYTE_TC].value; }
|
||
|
|
|
||
|
|
if(atr->ib[i][ATR_INTERFACE_BYTE_TD].present)
|
||
|
|
{ buffer[j++] = atr->ib[i][ATR_INTERFACE_BYTE_TD].value; }
|
||
|
|
}
|
||
|
|
|
||
|
|
if(atr->hbn > 0)
|
||
|
|
{
|
||
|
|
memcpy(&(buffer[j]), atr->hb, atr->hbn);
|
||
|
|
j += atr->hbn;
|
||
|
|
}
|
||
|
|
|
||
|
|
if((atr->TCK).present)
|
||
|
|
{ buffer[j++] = (atr->TCK).value; }
|
||
|
|
|
||
|
|
(*length) = j;
|
||
|
|
|
||
|
|
return ATR_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
int32_t ATR_GetCheckByte(ATR *atr, unsigned char *check_byte)
|
||
|
|
{
|
||
|
|
if(!((atr->TCK).present))
|
||
|
|
{ return (ATR_NOT_FOUND); }
|
||
|
|
|
||
|
|
(*check_byte) = (atr->TCK).value;
|
||
|
|
return (ATR_OK);
|
||
|
|
}
|
||
|
|
|
||
|
|
int32_t ATR_GetFsMax(ATR *atr, uint32_t *fsmax)
|
||
|
|
{
|
||
|
|
unsigned char FI;
|
||
|
|
|
||
|
|
if(ATR_GetIntegerValue(atr, ATR_INTEGER_VALUE_FI, &FI) == ATR_OK)
|
||
|
|
{ (*fsmax) = atr_fs_table[FI]; }
|
||
|
|
else
|
||
|
|
{ (*fsmax) = atr_fs_table[1]; }
|
||
|
|
|
||
|
|
return (ATR_OK);
|
||
|
|
}
|
||
|
|
#endif
|