| 1 |
/*
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| 2 |
commands.c: Commands sent to the card
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| 3 |
Copyright (C) 2003-2004 Ludovic Rousseau
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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| 19 |
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| 20 |
/*
|
| 21 |
* $Id$
|
| 22 |
*/
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| 24 |
#include <string.h>
|
| 25 |
#include <stdlib.h>
|
| 26 |
#include <errno.h>
|
| 27 |
#include <pcsclite.h>
|
| 28 |
#include <ifdhandler.h>
|
| 29 |
#include <reader.h>
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| 30 |
|
| 31 |
#include "commands.h"
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| 32 |
#include "openct/proto-t1.h"
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| 33 |
#include "ccid.h"
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| 34 |
#include "defs.h"
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| 35 |
#include "ccid_ifdhandler.h"
|
| 36 |
#include "config.h"
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| 37 |
#include "debug.h"
|
| 38 |
|
| 39 |
/* All the pinpad readers I used are more or less bogus
|
| 40 |
* I use code to change the user command and make the firmware happy */
|
| 41 |
#define BOGUS_PINPAD_FIRMWARE
|
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|
| 43 |
#define max( a, b ) ( ( ( a ) > ( b ) ) ? ( a ) : ( b ) )
|
| 44 |
#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
|
| 45 |
#define IFD_ERROR_INSUFFICIENT_BUFFER 700
|
| 46 |
|
| 47 |
/* internal functions */
|
| 48 |
static RESPONSECODE CmdXfrBlockAPDU_extended(unsigned int reader_index,
|
| 49 |
unsigned int tx_length, unsigned char tx_buffer[], unsigned int *rx_length,
|
| 50 |
unsigned char rx_buffer[]);
|
| 51 |
|
| 52 |
static RESPONSECODE CmdXfrBlockTPDU_T0(unsigned int reader_index,
|
| 53 |
unsigned int tx_length, unsigned char tx_buffer[], unsigned int *rx_length,
|
| 54 |
unsigned char rx_buffer[]);
|
| 55 |
|
| 56 |
static RESPONSECODE CmdXfrBlockCHAR_T0(unsigned int reader_index, unsigned int
|
| 57 |
tx_length, unsigned char tx_buffer[], unsigned int *rx_length, unsigned
|
| 58 |
char rx_buffer[]);
|
| 59 |
|
| 60 |
static RESPONSECODE CmdXfrBlockTPDU_T1(unsigned int reader_index,
|
| 61 |
unsigned int tx_length, unsigned char tx_buffer[], unsigned int *rx_length,
|
| 62 |
unsigned char rx_buffer[]);
|
| 63 |
|
| 64 |
static void i2dw(int value, unsigned char *buffer);
|
| 65 |
|
| 66 |
|
| 67 |
/*****************************************************************************
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| 68 |
*
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| 69 |
* CmdPowerOn
|
| 70 |
*
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| 71 |
****************************************************************************/
|
| 72 |
RESPONSECODE CmdPowerOn(unsigned int reader_index, unsigned int * nlength,
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| 73 |
unsigned char buffer[], int voltage)
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| 74 |
{
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| 75 |
unsigned char cmd[10];
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| 76 |
status_t res;
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| 77 |
int length, count = 1;
|
| 78 |
unsigned int atr_len;
|
| 79 |
RESPONSECODE return_value = IFD_SUCCESS;
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| 80 |
_ccid_descriptor *ccid_descriptor = get_ccid_descriptor(reader_index);
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| 81 |
|
| 82 |
if (ICCD_A == ccid_descriptor->bInterfaceProtocol)
|
| 83 |
{
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| 84 |
int r;
|
| 85 |
unsigned char pcbuffer[SIZE_GET_SLOT_STATUS];
|
| 86 |
|
| 87 |
/* first power off to reset the ICC state machine */
|
| 88 |
r = CmdPowerOff(reader_index);
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| 89 |
if (r != IFD_SUCCESS)
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| 90 |
return r;
|
| 91 |
|
| 92 |
/* wait for ready */
|
| 93 |
r = CmdGetSlotStatus(reader_index, pcbuffer);
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| 94 |
if (r != IFD_SUCCESS)
|
| 95 |
return r;
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| 96 |
|
| 97 |
/* Power On */
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| 98 |
r = ControlUSB(reader_index, 0xA1, 0x62, 0, buffer, *nlength);
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| 99 |
|
| 100 |
/* we got an error? */
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if (r < 0)
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{
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| 103 |
DEBUG_INFO2("ICC Power On failed: %s", strerror(errno));
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return IFD_COMMUNICATION_ERROR;
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| 105 |
}
|
| 106 |
|
| 107 |
*nlength = r;
|
| 108 |
|
| 109 |
return IFD_SUCCESS;
|
| 110 |
}
|
| 111 |
|
| 112 |
if (ICCD_B == ccid_descriptor->bInterfaceProtocol)
|
| 113 |
{
|
| 114 |
int r;
|
| 115 |
unsigned char tmp[MAX_ATR_SIZE+1];
|
| 116 |
|
| 117 |
/* first power off to reset the ICC state machine */
|
| 118 |
r = CmdPowerOff(reader_index);
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| 119 |
if (r != IFD_SUCCESS)
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return r;
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| 121 |
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| 122 |
/* Power On */
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| 123 |
r = ControlUSB(reader_index, 0x21, 0x62, 1, NULL, 0);
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| 124 |
|
| 125 |
/* we got an error? */
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| 126 |
if (r < 0)
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{
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DEBUG_INFO2("ICC Power On failed: %s", strerror(errno));
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| 129 |
return IFD_COMMUNICATION_ERROR;
|
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}
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| 131 |
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| 132 |
/* Data Block */
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r = ControlUSB(reader_index, 0xA1, 0x6F, 0, tmp, sizeof(tmp));
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/* we got an error? */
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if (r < 0)
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{
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DEBUG_INFO2("ICC Data Block failed: %s", strerror(errno));
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return IFD_COMMUNICATION_ERROR;
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}
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| 141 |
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| 142 |
if (tmp[0] != 0x00)
|
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{
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| 144 |
DEBUG_CRITICAL2("bResponseType: 0x%02X", tmp[0]);
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| 146 |
/* Status Information? */
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| 147 |
if (0x40 == tmp[0])
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ccid_error(tmp[2], __FILE__, __LINE__, __FUNCTION__);
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return IFD_COMMUNICATION_ERROR;
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}
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| 151 |
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| 152 |
DEBUG_INFO_XXD("Data Block: ", tmp, r);
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if (*nlength > r-1)
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*nlength = r-1;
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memcpy(buffer, tmp+1, *nlength);
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| 157 |
return IFD_SUCCESS;
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}
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| 159 |
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| 160 |
/* store length of buffer[] */
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length = *nlength;
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| 162 |
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| 163 |
if (ccid_descriptor->dwFeatures & CCID_CLASS_AUTO_VOLTAGE)
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voltage = 0; /* automatic voltage selection */
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again:
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cmd[0] = 0x62; /* IccPowerOn */
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cmd[1] = cmd[2] = cmd[3] = cmd[4] = 0; /* dwLength */
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cmd[5] = ccid_descriptor->bCurrentSlotIndex; /* slot number */
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cmd[6] = (*ccid_descriptor->pbSeq)++;
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cmd[7] = voltage;
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cmd[8] = cmd[9] = 0; /* RFU */
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res = WritePort(reader_index, sizeof(cmd), cmd);
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if (res != STATUS_SUCCESS)
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return IFD_COMMUNICATION_ERROR;
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/* reset available buffer size */
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/* needed if we go back after a switch to ISO mode */
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*nlength = length;
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res = ReadPort(reader_index, nlength, buffer);
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if (res != STATUS_SUCCESS)
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return IFD_COMMUNICATION_ERROR;
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| 185 |
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| 186 |
if (*nlength < STATUS_OFFSET+1)
|
| 187 |
{
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DEBUG_CRITICAL2("Not enough data received: %d bytes", *nlength);
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| 189 |
return IFD_COMMUNICATION_ERROR;
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}
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| 191 |
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| 192 |
if (buffer[STATUS_OFFSET] & CCID_COMMAND_FAILED)
|
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{
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| 194 |
ccid_error(buffer[ERROR_OFFSET], __FILE__, __LINE__, __FUNCTION__); /* bError */
|
| 195 |
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| 196 |
if (0xBB == buffer[ERROR_OFFSET] && /* Protocol error in EMV mode */
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((GEMPC433 == ccid_descriptor->readerID)
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|| (CHERRYXX33 == ccid_descriptor->readerID)))
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{
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| 200 |
unsigned char cmd_tmp[] = {0x1F, 0x01};
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unsigned char res_tmp[1];
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unsigned int res_length = sizeof(res_tmp);
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if ((return_value = CmdEscape(reader_index, cmd_tmp,
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sizeof(cmd_tmp), res_tmp, &res_length)) != IFD_SUCCESS)
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return return_value;
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| 207 |
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| 208 |
/* avoid looping if we can't switch mode */
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if (count--)
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goto again;
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else
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DEBUG_CRITICAL("Can't set reader in ISO mode");
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}
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| 214 |
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| 215 |
/* continue with 3 volts and 5 volts */
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if (voltage > 1)
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{
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const char *voltage_code[] = { "auto", "5V", "3V", "1.8V" };
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DEBUG_INFO3("Power up with %s failed. Try with %s.",
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voltage_code[voltage], voltage_code[voltage-1]);
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voltage--;
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goto again;
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}
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| 226 |
return IFD_COMMUNICATION_ERROR;
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}
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/* extract the ATR */
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atr_len = dw2i(buffer, 1); /* ATR length */
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if (atr_len > *nlength)
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atr_len = *nlength;
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else
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*nlength = atr_len;
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memmove(buffer, buffer+10, atr_len);
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| 238 |
return return_value;
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} /* CmdPowerOn */
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|
| 241 |
|
| 242 |
/*****************************************************************************
|
| 243 |
*
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| 244 |
* SecurePINVerify
|
| 245 |
*
|
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****************************************************************************/
|
| 247 |
RESPONSECODE SecurePINVerify(unsigned int reader_index,
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| 248 |
unsigned char TxBuffer[], unsigned int TxLength,
|
| 249 |
unsigned char RxBuffer[], unsigned int *RxLength)
|
| 250 |
{
|
| 251 |
unsigned char cmd[11+14+CMD_BUF_SIZE];
|
| 252 |
unsigned int a, b;
|
| 253 |
_ccid_descriptor *ccid_descriptor = get_ccid_descriptor(reader_index);
|
| 254 |
int old_read_timeout;
|
| 255 |
RESPONSECODE ret;
|
| 256 |
|
| 257 |
cmd[0] = 0x69; /* Secure */
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cmd[5] = ccid_descriptor->bCurrentSlotIndex; /* slot number */
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| 259 |
cmd[6] = (*ccid_descriptor->pbSeq)++;
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| 260 |
cmd[7] = 0; /* bBWI */
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| 261 |
cmd[8] = 0; /* wLevelParameter */
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| 262 |
cmd[9] = 0;
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| 263 |
cmd[10] = 0; /* bPINOperation: PIN Verification */
|
| 264 |
|
| 265 |
/* 19 is the size of the PCSCv2 PIN verify structure
|
| 266 |
* The equivalent CCID structure is only 14-bytes long */
|
| 267 |
if (TxLength > 19+CMD_BUF_SIZE) /* command too large? */
|
| 268 |
{
|
| 269 |
DEBUG_INFO3("Command too long: %d > %d", TxLength, 19+CMD_BUF_SIZE);
|
| 270 |
return IFD_NOT_SUPPORTED;
|
| 271 |
}
|
| 272 |
|
| 273 |
if (TxLength < 19+4 /* 4 = APDU size */) /* command too short? */
|
| 274 |
{
|
| 275 |
DEBUG_INFO3("Command too short: %d < %d", TxLength, 19+4);
|
| 276 |
return IFD_NOT_SUPPORTED;
|
| 277 |
}
|
| 278 |
|
| 279 |
if (dw2i(TxBuffer, 15) + 19 != TxLength) /* ulDataLength field coherency */
|
| 280 |
{
|
| 281 |
DEBUG_INFO3("Wrong lengths: %d %d", dw2i(TxBuffer, 15) + 19, TxLength);
|
| 282 |
return IFD_NOT_SUPPORTED;
|
| 283 |
}
|
| 284 |
|
| 285 |
/* make sure bEntryValidationCondition is valid
|
| 286 |
* The Cherry XX44 reader crashes with a wrong value */
|
| 287 |
if ((0x00 == TxBuffer[7]) || (TxBuffer[7] > 0x07))
|
| 288 |
{
|
| 289 |
DEBUG_INFO2("Correct bEntryValidationCondition (was 0x%02X)",
|
| 290 |
TxBuffer[7]);
|
| 291 |
TxBuffer[7] = 0x02;
|
| 292 |
}
|
| 293 |
|
| 294 |
#ifdef BOGUS_PINPAD_FIRMWARE
|
| 295 |
/* bug circumvention for the GemPC Pinpad */
|
| 296 |
if (GEMPCPINPAD == ccid_descriptor->readerID)
|
| 297 |
{
|
| 298 |
/* the firmware reject the cases: 00h No string and FFh default
|
| 299 |
* CCID message. The only value supported is 01h (display 1 message) */
|
| 300 |
if (0x01 != TxBuffer[8])
|
| 301 |
{
|
| 302 |
DEBUG_INFO2("Correct bNumberMessage for GemPC Pinpad (was %d)",
|
| 303 |
TxBuffer[8]);
|
| 304 |
TxBuffer[8] = 0x01;
|
| 305 |
}
|
| 306 |
|
| 307 |
/* The reader does not support, and actively reject, "max size reached"
|
| 308 |
* and "timeout occured" validation conditions */
|
| 309 |
if (0x02 != TxBuffer[7])
|
| 310 |
{
|
| 311 |
DEBUG_INFO2("Correct bEntryValidationCondition for GemPC Pinpad (was %d)",
|
| 312 |
TxBuffer[7]);
|
| 313 |
TxBuffer[7] = 0x02; /* validation key pressed */
|
| 314 |
}
|
| 315 |
|
| 316 |
}
|
| 317 |
#endif
|
| 318 |
|
| 319 |
/* T=1 Protocol Management for a TPDU reader */
|
| 320 |
if ((SCARD_PROTOCOL_T1 == ccid_descriptor->cardProtocol)
|
| 321 |
&& (CCID_CLASS_TPDU == (ccid_descriptor->dwFeatures & CCID_CLASS_EXCHANGE_MASK)))
|
| 322 |
{
|
| 323 |
ct_buf_t sbuf;
|
| 324 |
unsigned char sdata[T1_BUFFER_SIZE];
|
| 325 |
|
| 326 |
/* Initialize send buffer with the APDU */
|
| 327 |
ct_buf_set(&sbuf,
|
| 328 |
(void *)(TxBuffer + offsetof(PIN_VERIFY_STRUCTURE, abData)),
|
| 329 |
TxLength - offsetof(PIN_VERIFY_STRUCTURE, abData));
|
| 330 |
|
| 331 |
/* Create T=1 block */
|
| 332 |
ret = t1_build(&((get_ccid_slot(reader_index))->t1),
|
| 333 |
sdata, 0, T1_I_BLOCK, &sbuf, NULL);
|
| 334 |
|
| 335 |
/* Increment the sequence numbers */
|
| 336 |
get_ccid_slot(reader_index)->t1.ns ^= 1;
|
| 337 |
get_ccid_slot(reader_index)->t1.nr ^= 1;
|
| 338 |
|
| 339 |
/* Copy the generated T=1 block prologue into the teoprologue
|
| 340 |
* of the CCID command */
|
| 341 |
memcpy(TxBuffer + offsetof(PIN_VERIFY_STRUCTURE, bTeoPrologue),
|
| 342 |
sdata, 3);
|
| 343 |
}
|
| 344 |
|
| 345 |
/* Build a CCID block from a PC/SC V2.1.2 Part 10 block */
|
| 346 |
for (a = 11, b = 0; b < TxLength; b++)
|
| 347 |
{
|
| 348 |
if (1 == b) /* bTimeOut2 field */
|
| 349 |
/* Ignore the second timeout as there's nothing we can do with
|
| 350 |
* it currently */
|
| 351 |
continue;
|
| 352 |
|
| 353 |
if ((b >= 15) && (b <= 18)) /* ulDataLength field (4 bytes) */
|
| 354 |
/* the ulDataLength field is not present in the CCID frame
|
| 355 |
* so do not copy */
|
| 356 |
continue;
|
| 357 |
|
| 358 |
/* copy the CCID block 'verbatim' */
|
| 359 |
cmd[a] = TxBuffer[b];
|
| 360 |
a++;
|
| 361 |
}
|
| 362 |
|
| 363 |
/* SPR532 and Case 1 APDU */
|
| 364 |
if ((SPR532 == ccid_descriptor->readerID) && (TxBuffer[15] == 4))
|
| 365 |
{
|
| 366 |
RESPONSECODE return_value;
|
| 367 |
unsigned char cmd_tmp[] = { 0x80, 0x02, 0x00 };
|
| 368 |
unsigned char res_tmp[1];
|
| 369 |
unsigned int res_length = sizeof(res_tmp);
|
| 370 |
|
| 371 |
/* the SPR532 will append the PIN code without any padding */
|
| 372 |
return_value = CmdEscape(reader_index, cmd_tmp, sizeof(cmd_tmp),
|
| 373 |
res_tmp, &res_length);
|
| 374 |
if (return_value != IFD_SUCCESS)
|
| 375 |
{
|
| 376 |
ccid_error(res_tmp[ERROR_OFFSET], __FILE__, __LINE__, __FUNCTION__);
|
| 377 |
return return_value;
|
| 378 |
}
|
| 379 |
}
|
| 380 |
|
| 381 |
i2dw(a - 10, cmd + 1); /* CCID message length */
|
| 382 |
|
| 383 |
old_read_timeout = ccid_descriptor -> readTimeout;
|
| 384 |
ccid_descriptor -> readTimeout = max(30, TxBuffer[0]+10); /* at least 30 seconds */
|
| 385 |
|
| 386 |
if (WritePort(reader_index, a, cmd) != STATUS_SUCCESS)
|
| 387 |
return IFD_COMMUNICATION_ERROR;
|
| 388 |
|
| 389 |
ret = CCID_Receive(reader_index, RxLength, RxBuffer, NULL);
|
| 390 |
|
| 391 |
/* T=1 Protocol Management for a TPDU reader */
|
| 392 |
if ((IFD_SUCCESS == ret)
|
| 393 |
&& (SCARD_PROTOCOL_T1 == ccid_descriptor->cardProtocol)
|
| 394 |
&& (CCID_CLASS_TPDU == (ccid_descriptor->dwFeatures & CCID_CLASS_EXCHANGE_MASK)))
|
| 395 |
{
|
| 396 |
/* timeout and cancel cases are faked by CCID_Receive() */
|
| 397 |
if (2 == *RxLength)
|
| 398 |
{
|
| 399 |
/* Decrement the sequence numbers since no TPDU was sent */
|
| 400 |
get_ccid_slot(reader_index)->t1.ns ^= 1;
|
| 401 |
get_ccid_slot(reader_index)->t1.nr ^= 1;
|
| 402 |
}
|
| 403 |
else
|
| 404 |
{
|
| 405 |
/* get only the T=1 data */
|
| 406 |
/* FIXME: manage T=1 error blocks */
|
| 407 |
memmove(RxBuffer, RxBuffer+3, *RxLength -4);
|
| 408 |
*RxLength -= 4; /* remove NAD, PCB, LEN and CRC */
|
| 409 |
}
|
| 410 |
}
|
| 411 |
|
| 412 |
ccid_descriptor -> readTimeout = old_read_timeout;
|
| 413 |
return ret;
|
| 414 |
} /* SecurePINVerify */
|
| 415 |
|
| 416 |
|
| 417 |
/*****************************************************************************
|
| 418 |
*
|
| 419 |
* SecurePINModify
|
| 420 |
*
|
| 421 |
****************************************************************************/
|
| 422 |
RESPONSECODE SecurePINModify(unsigned int reader_index,
|
| 423 |
unsigned char TxBuffer[], unsigned int TxLength,
|
| 424 |
unsigned char RxBuffer[], unsigned int *RxLength)
|
| 425 |
{
|
| 426 |
unsigned char cmd[11+19+CMD_BUF_SIZE];
|
| 427 |
unsigned int a, b;
|
| 428 |
_ccid_descriptor *ccid_descriptor = get_ccid_descriptor(reader_index);
|
| 429 |
int old_read_timeout;
|
| 430 |
RESPONSECODE ret;
|
| 431 |
#ifdef BOGUS_PINPAD_FIRMWARE
|
| 432 |
int bNumberMessages = 0; /* for GemPC Pinpad */
|
| 433 |
#endif
|
| 434 |
|
| 435 |
cmd[0] = 0x69; /* Secure */
|
| 436 |
cmd[5] = ccid_descriptor->bCurrentSlotIndex; /* slot number */
|
| 437 |
cmd[6] = (*ccid_descriptor->pbSeq)++;
|
| 438 |
cmd[7] = 0; /* bBWI */
|
| 439 |
cmd[8] = 0; /* wLevelParameter */
|
| 440 |
cmd[9] = 0;
|
| 441 |
cmd[10] = 1; /* bPINOperation: PIN Modification */
|
| 442 |
|
| 443 |
/* 24 is the size of the PCSC PIN modify structure
|
| 444 |
* The equivalent CCID structure is only 18 or 19-bytes long */
|
| 445 |
if (TxLength > 24+CMD_BUF_SIZE) /* command too large? */
|
| 446 |
{
|
| 447 |
DEBUG_INFO3("Command too long: %d > %d", TxLength, 24+CMD_BUF_SIZE);
|
| 448 |
return IFD_NOT_SUPPORTED;
|
| 449 |
}
|
| 450 |
|
| 451 |
if (TxLength < 24+4 /* 4 = APDU size */) /* command too short? */
|
| 452 |
{
|
| 453 |
DEBUG_INFO3("Command too short: %d < %d", TxLength, 24+4);
|
| 454 |
return IFD_NOT_SUPPORTED;
|
| 455 |
}
|
| 456 |
|
| 457 |
if (dw2i(TxBuffer, 20) + 24 != TxLength) /* ulDataLength field coherency */
|
| 458 |
{
|
| 459 |
DEBUG_INFO3("Wrong lengths: %d %d", dw2i(TxBuffer, 20) + 24, TxLength);
|
| 460 |
return IFD_NOT_SUPPORTED;
|
| 461 |
}
|
| 462 |
|
| 463 |
/* Make sure in the beginning if bNumberMessage is valid or not */
|
| 464 |
if (TxBuffer[11] > 3)
|
| 465 |
{
|
| 466 |
DEBUG_INFO2("Wrong bNumberMessage: %d", TxBuffer[11]);
|
| 467 |
return IFD_NOT_SUPPORTED;
|
| 468 |
}
|
| 469 |
|
| 470 |
/* Make sure bEntryValidationCondition is valid
|
| 471 |
* The Cherry XX44 reader crashes with a wrong value */
|
| 472 |
if ((0x00 == TxBuffer[10]) || (TxBuffer[10] > 0x07))
|
| 473 |
{
|
| 474 |
DEBUG_INFO2("Correct bEntryValidationCondition (was 0x%02X)",
|
| 475 |
TxBuffer[10]);
|
| 476 |
TxBuffer[10] = 0x02;
|
| 477 |
}
|
| 478 |
|
| 479 |
#ifdef BOGUS_PINPAD_FIRMWARE
|
| 480 |
/* some firmwares are buggy so we try to "correct" the frame */
|
| 481 |
/*
|
| 482 |
* SPR 532 and Cherry ST 2000C has no display but requires _all_
|
| 483 |
* bMsgIndex fields with bNumberMessage set to 0.
|
| 484 |
*/
|
| 485 |
if ((SPR532 == ccid_descriptor->readerID)
|
| 486 |
|| (CHERRYST2000 == ccid_descriptor->readerID))
|
| 487 |
{
|
| 488 |
TxBuffer[11] = 0x03; /* set bNumberMessages to 3 so that
|
| 489 |
all bMsgIndex123 are filled */
|
| 490 |
TxBuffer[14] = TxBuffer[15] = TxBuffer[16] = 0; /* bMsgIndex123 */
|
| 491 |
}
|
| 492 |
|
| 493 |
/* the bug is a bit different than for the Cherry ST 2000C
|
| 494 |
* with bNumberMessages < 3 the command seems to be accepted
|
| 495 |
* and the card sends 6B 80 */
|
| 496 |
if (CHERRYXX44 == ccid_descriptor->readerID)
|
| 497 |
{
|
| 498 |
TxBuffer[11] = 0x03; /* set bNumberMessages to 3 so that
|
| 499 |
all bMsgIndex123 are filled */
|
| 500 |
}
|
| 501 |
|
| 502 |
/* bug circumvention for the GemPC Pinpad */
|
| 503 |
if (GEMPCPINPAD == ccid_descriptor->readerID)
|
| 504 |
{
|
| 505 |
/* The reader does not support, and actively reject, "max size reached"
|
| 506 |
* and "timeout occured" validation conditions */
|
| 507 |
if (0x02 != TxBuffer[10])
|
| 508 |
{
|
| 509 |
DEBUG_INFO2("Correct bEntryValidationCondition for GemPC Pinpad (was %d)",
|
| 510 |
TxBuffer[10]);
|
| 511 |
TxBuffer[10] = 0x02; /* validation key pressed */
|
| 512 |
}
|
| 513 |
|
| 514 |
/* the reader does not support any other value than 3 for the number
|
| 515 |
* of messages */
|
| 516 |
bNumberMessages = TxBuffer[11];
|
| 517 |
if (0x03 != TxBuffer[11])
|
| 518 |
{
|
| 519 |
DEBUG_INFO2("Correct bNumberMessages for GemPC Pinpad (was %d)",
|
| 520 |
TxBuffer[11]);
|
| 521 |
TxBuffer[11] = 0x03; /* 3 messages */
|
| 522 |
}
|
| 523 |
}
|
| 524 |
#endif
|
| 525 |
|
| 526 |
/* T=1 Protocol Management for a TPDU reader */
|
| 527 |
if ((SCARD_PROTOCOL_T1 == ccid_descriptor->cardProtocol)
|
| 528 |
&& (CCID_CLASS_TPDU == (ccid_descriptor->dwFeatures & CCID_CLASS_EXCHANGE_MASK)))
|
| 529 |
{
|
| 530 |
ct_buf_t sbuf;
|
| 531 |
unsigned char sdata[T1_BUFFER_SIZE];
|
| 532 |
|
| 533 |
/* Initialize send buffer with the APDU */
|
| 534 |
ct_buf_set(&sbuf,
|
| 535 |
(void *)(TxBuffer + offsetof(PIN_MODIFY_STRUCTURE, abData)),
|
| 536 |
TxLength - offsetof(PIN_MODIFY_STRUCTURE, abData));
|
| 537 |
|
| 538 |
/* Create T=1 block */
|
| 539 |
ret = t1_build(&((get_ccid_slot(reader_index))->t1),
|
| 540 |
sdata, 0, T1_I_BLOCK, &sbuf, NULL);
|
| 541 |
|
| 542 |
/* Increment the sequence numbers */
|
| 543 |
get_ccid_slot(reader_index)->t1.ns ^= 1;
|
| 544 |
get_ccid_slot(reader_index)->t1.nr ^= 1;
|
| 545 |
|
| 546 |
/* Copy the generated T=1 block prologue into the teoprologue
|
| 547 |
* of the CCID command */
|
| 548 |
memcpy(TxBuffer + offsetof(PIN_MODIFY_STRUCTURE, bTeoPrologue),
|
| 549 |
sdata, 3);
|
| 550 |
}
|
| 551 |
|
| 552 |
/* Build a CCID block from a PC/SC V2.1.2 Part 10 block */
|
| 553 |
|
| 554 |
/* Do adjustments as needed - CCID spec is not exact with some
|
| 555 |
* details in the format of the structure, per-reader adaptions
|
| 556 |
* might be needed.
|
| 557 |
*/
|
| 558 |
for (a = 11, b = 0; b < TxLength; b++)
|
| 559 |
{
|
| 560 |
if (1 == b) /* bTimeOut2 */
|
| 561 |
/* Ignore the second timeout as there's nothing we can do with it
|
| 562 |
* currently */
|
| 563 |
continue;
|
| 564 |
|
| 565 |
if (15 == b) /* bMsgIndex2 */
|
| 566 |
{
|
| 567 |
/* in CCID the bMsgIndex2 is present only if bNumberMessage != 0 */
|
| 568 |
if (0 == TxBuffer[11])
|
| 569 |
continue;
|
| 570 |
}
|
| 571 |
|
| 572 |
if (16 == b) /* bMsgIndex3 */
|
| 573 |
{
|
| 574 |
/* in CCID the bMsgIndex3 is present only if bNumberMessage == 3 */
|
| 575 |
if (TxBuffer[11] < 3)
|
| 576 |
continue;
|
| 577 |
}
|
| 578 |
|
| 579 |
if ((b >= 20) && (b <= 23)) /* ulDataLength field (4 bytes) */
|
| 580 |
/* the ulDataLength field is not present in the CCID frame
|
| 581 |
* so do not copy */
|
| 582 |
continue;
|
| 583 |
|
| 584 |
/* copy to the CCID block 'verbatim' */
|
| 585 |
cmd[a] = TxBuffer[b];
|
| 586 |
a++;
|
| 587 |
}
|
| 588 |
|
| 589 |
#ifdef BOGUS_PINPAD_FIRMWARE
|
| 590 |
if ((SPR532 == ccid_descriptor->readerID)
|
| 591 |
|| (CHERRYST2000 == ccid_descriptor->readerID))
|
| 592 |
{
|
| 593 |
cmd[21] = 0x00; /* set bNumberMessages to 0 */
|
| 594 |
}
|
| 595 |
|
| 596 |
if (GEMPCPINPAD == ccid_descriptor->readerID)
|
| 597 |
cmd[21] = bNumberMessages; /* restore the real value */
|
| 598 |
#endif
|
| 599 |
|
| 600 |
/* We know the size of the CCID message now */
|
| 601 |
i2dw(a - 10, cmd + 1); /* command length (includes bPINOperation) */
|
| 602 |
|
| 603 |
old_read_timeout = ccid_descriptor -> readTimeout;
|
| 604 |
ccid_descriptor -> readTimeout = max(30, TxBuffer[0]+10); /* at least 30 seconds */
|
| 605 |
|
| 606 |
if (WritePort(reader_index, a, cmd) != STATUS_SUCCESS)
|
| 607 |
return IFD_COMMUNICATION_ERROR;
|
| 608 |
|
| 609 |
ret = CCID_Receive(reader_index, RxLength, RxBuffer, NULL);
|
| 610 |
|
| 611 |
/* T=1 Protocol Management for a TPDU reader */
|
| 612 |
if ((IFD_SUCCESS == ret)
|
| 613 |
&& (SCARD_PROTOCOL_T1 == ccid_descriptor->cardProtocol)
|
| 614 |
&& (CCID_CLASS_TPDU == (ccid_descriptor->dwFeatures & CCID_CLASS_EXCHANGE_MASK)))
|
| 615 |
{
|
| 616 |
/* timeout and cancel cases are faked by CCID_Receive() */
|
| 617 |
if (2 == *RxLength)
|
| 618 |
{
|
| 619 |
/* Decrement the sequence numbers since no TPDU was sent */
|
| 620 |
get_ccid_slot(reader_index)->t1.ns ^= 1;
|
| 621 |
get_ccid_slot(reader_index)->t1.nr ^= 1;
|
| 622 |
}
|
| 623 |
else
|
| 624 |
{
|
| 625 |
/* get only the T=1 data */
|
| 626 |
/* FIXME: manage T=1 error blocks */
|
| 627 |
memmove(RxBuffer, RxBuffer+3, *RxLength -4);
|
| 628 |
*RxLength -= 4; /* remove NAD, PCB, LEN and CRC */
|
| 629 |
}
|
| 630 |
}
|
| 631 |
|
| 632 |
ccid_descriptor -> readTimeout = old_read_timeout;
|
| 633 |
return ret;
|
| 634 |
} /* SecurePINModify */
|
| 635 |
|
| 636 |
|
| 637 |
/*****************************************************************************
|
| 638 |
*
|
| 639 |
* Escape
|
| 640 |
*
|
| 641 |
****************************************************************************/
|
| 642 |
RESPONSECODE CmdEscape(unsigned int reader_index,
|
| 643 |
const unsigned char TxBuffer[], unsigned int TxLength,
|
| 644 |
unsigned char RxBuffer[], unsigned int *RxLength)
|
| 645 |
{
|
| 646 |
unsigned char *cmd_in, *cmd_out;
|
| 647 |
status_t res;
|
| 648 |
unsigned int length_in, length_out;
|
| 649 |
RESPONSECODE return_value = IFD_SUCCESS;
|
| 650 |
_ccid_descriptor *ccid_descriptor = get_ccid_descriptor(reader_index);
|
| 651 |
|
| 652 |
again:
|
| 653 |
/* allocate buffers */
|
| 654 |
length_in = 10 + TxLength;
|
| 655 |
if (NULL == (cmd_in = malloc(length_in)))
|
| 656 |
return IFD_COMMUNICATION_ERROR;
|
| 657 |
|
| 658 |
length_out = 10 + *RxLength;
|
| 659 |
if (NULL == (cmd_out = malloc(length_out)))
|
| 660 |
{
|
| 661 |
free(cmd_in);
|
| 662 |
return IFD_COMMUNICATION_ERROR;
|
| 663 |
}
|
| 664 |
|
| 665 |
cmd_in[0] = 0x6B; /* PC_to_RDR_Escape */
|
| 666 |
i2dw(length_in - 10, cmd_in+1); /* dwLength */
|
| 667 |
cmd_in[5] = ccid_descriptor->bCurrentSlotIndex; /* slot number */
|
| 668 |
cmd_in[6] = (*ccid_descriptor->pbSeq)++;
|
| 669 |
cmd_in[7] = cmd_in[8] = cmd_in[9] = 0; /* RFU */
|
| 670 |
|
| 671 |
/* copy the command */
|
| 672 |
memcpy(&cmd_in[10], TxBuffer, TxLength);
|
| 673 |
|
| 674 |
res = WritePort(reader_index, length_in, cmd_in);
|
| 675 |
free(cmd_in);
|
| 676 |
if (res != STATUS_SUCCESS)
|
| 677 |
{
|
| 678 |
free(cmd_out);
|
| 679 |
return IFD_COMMUNICATION_ERROR;
|
| 680 |
}
|
| 681 |
|
| 682 |
res = ReadPort(reader_index, &length_out, cmd_out);
|
| 683 |
|
| 684 |
/* replay the command if NAK
|
| 685 |
* This (generally) happens only for the first command sent to the reader
|
| 686 |
* with the serial protocol so it is not really needed for all the other
|
| 687 |
* ReadPort() calls */
|
| 688 |
if (STATUS_COMM_NAK == res)
|
| 689 |
{
|
| 690 |
free(cmd_out);
|
| 691 |
goto again;
|
| 692 |
}
|
| 693 |
|
| 694 |
if (res != STATUS_SUCCESS)
|
| 695 |
{
|
| 696 |
free(cmd_out);
|
| 697 |
return IFD_COMMUNICATION_ERROR;
|
| 698 |
}
|
| 699 |
|
| 700 |
if (length_out < STATUS_OFFSET+1)
|
| 701 |
{
|
| 702 |
DEBUG_CRITICAL2("Not enough data received: %d bytes", length_out);
|
| 703 |
return IFD_COMMUNICATION_ERROR;
|
| 704 |
}
|
| 705 |
|
| 706 |
if (cmd_out[STATUS_OFFSET] & CCID_COMMAND_FAILED)
|
| 707 |
{
|
| 708 |
ccid_error(cmd_out[ERROR_OFFSET], __FILE__, __LINE__, __FUNCTION__); /* bError */
|
| 709 |
return_value = IFD_COMMUNICATION_ERROR;
|
| 710 |
}
|
| 711 |
|
| 712 |
/* copy the response */
|
| 713 |
length_out = dw2i(cmd_out, 1);
|
| 714 |
if (length_out > *RxLength)
|
| 715 |
length_out = *RxLength;
|
| 716 |
*RxLength = length_out;
|
| 717 |
memcpy(RxBuffer, &cmd_out[10], length_out);
|
| 718 |
|
| 719 |
free(cmd_out);
|
| 720 |
|
| 721 |
return return_value;
|
| 722 |
} /* Escape */
|
| 723 |
|
| 724 |
|
| 725 |
/*****************************************************************************
|
| 726 |
*
|
| 727 |
* CmdPowerOff
|
| 728 |
*
|
| 729 |
****************************************************************************/
|
| 730 |
RESPONSECODE CmdPowerOff(unsigned int reader_index)
|
| 731 |
{
|
| 732 |
unsigned char cmd[10];
|
| 733 |
status_t res;
|
| 734 |
unsigned int length;
|
| 735 |
RESPONSECODE return_value = IFD_SUCCESS;
|
| 736 |
_ccid_descriptor *ccid_descriptor = get_ccid_descriptor(reader_index);
|
| 737 |
|
| 738 |
if (ICCD_A == ccid_descriptor->bInterfaceProtocol)
|
| 739 |
{
|
| 740 |
int r;
|
| 741 |
|
| 742 |
/* PowerOff */
|
| 743 |
r = ControlUSB(reader_index, 0x21, 0x63, 0, NULL, 0);
|
| 744 |
|
| 745 |
/* we got an error? */
|
| 746 |
if (r < 0)
|
| 747 |
{
|
| 748 |
DEBUG_INFO2("ICC Power Off failed: %s", strerror(errno));
|
| 749 |
return IFD_COMMUNICATION_ERROR;
|
| 750 |
}
|
| 751 |
|
| 752 |
return IFD_SUCCESS;
|
| 753 |
}
|
| 754 |
|
| 755 |
if (ICCD_B == ccid_descriptor->bInterfaceProtocol)
|
| 756 |
{
|
| 757 |
int r;
|
| 758 |
unsigned char buffer[3];
|
| 759 |
|
| 760 |
/* PowerOff */
|
| 761 |
r = ControlUSB(reader_index, 0x21, 0x63, 0, NULL, 0);
|
| 762 |
|
| 763 |
/* we got an error? */
|
| 764 |
if (r < 0)
|
| 765 |
{
|
| 766 |
DEBUG_INFO2("ICC Power Off failed: %s", strerror(errno));
|
| 767 |
return IFD_COMMUNICATION_ERROR;
|
| 768 |
}
|
| 769 |
|
| 770 |
/* SlotStatus */
|
| 771 |
r = ControlUSB(reader_index, 0xA1, 0x81, 0, buffer, sizeof(buffer));
|
| 772 |
|
| 773 |
/* we got an error? */
|
| 774 |
if (r < 0)
|
| 775 |
{
|
| 776 |
DEBUG_INFO2("ICC SlotStatus failed: %s", strerror(errno));
|
| 777 |
return IFD_COMMUNICATION_ERROR;
|
| 778 |
}
|
| 779 |
|
| 780 |
return IFD_SUCCESS;
|
| 781 |
}
|
| 782 |
|
| 783 |
cmd[0] = 0x63; /* IccPowerOff */
|
| 784 |
cmd[1] = cmd[2] = cmd[3] = cmd[4] = 0; /* dwLength */
|
| 785 |
cmd[5] = ccid_descriptor->bCurrentSlotIndex; /* slot number */
|
| 786 |
cmd[6] = (*ccid_descriptor->pbSeq)++;
|
| 787 |
cmd[7] = cmd[8] = cmd[9] = 0; /* RFU */
|
| 788 |
|
| 789 |
res = WritePort(reader_index, sizeof(cmd), cmd);
|
| 790 |
if (res != STATUS_SUCCESS)
|
| 791 |
return IFD_COMMUNICATION_ERROR;
|
| 792 |
|
| 793 |
length = sizeof(cmd);
|
| 794 |
res = ReadPort(reader_index, &length, cmd);
|
| 795 |
if (res != STATUS_SUCCESS)
|
| 796 |
return IFD_COMMUNICATION_ERROR;
|
| 797 |
|
| 798 |
if (length < STATUS_OFFSET+1)
|
| 799 |
{
|
| 800 |
DEBUG_CRITICAL2("Not enough data received: %d bytes", length);
|
| 801 |
return IFD_COMMUNICATION_ERROR;
|
| 802 |
}
|
| 803 |
|
| 804 |
if (cmd[STATUS_OFFSET] & CCID_COMMAND_FAILED)
|
| 805 |
{
|
| 806 |
ccid_error(cmd[ERROR_OFFSET], __FILE__, __LINE__, __FUNCTION__); /* bError */
|
| 807 |
return_value = IFD_COMMUNICATION_ERROR;
|
| 808 |
}
|
| 809 |
|
| 810 |
return return_value;
|
| 811 |
} /* CmdPowerOff */
|
| 812 |
|
| 813 |
|
| 814 |
/*****************************************************************************
|
| 815 |
*
|
| 816 |
* CmdGetSlotStatus
|
| 817 |
*
|
| 818 |
****************************************************************************/
|
| 819 |
RESPONSECODE CmdGetSlotStatus(unsigned int reader_index, unsigned char buffer[])
|
| 820 |
{
|
| 821 |
unsigned char cmd[10];
|
| 822 |
status_t res;
|
| 823 |
unsigned int length;
|
| 824 |
RESPONSECODE return_value = IFD_SUCCESS;
|
| 825 |
_ccid_descriptor *ccid_descriptor = get_ccid_descriptor(reader_index);
|
| 826 |
|
| 827 |
if (ICCD_A == ccid_descriptor->bInterfaceProtocol)
|
| 828 |
{
|
| 829 |
int r;
|
| 830 |
unsigned char status[1];
|
| 831 |
|
| 832 |
again_status:
|
| 833 |
/* SlotStatus */
|
| 834 |
r = ControlUSB(reader_index, 0xA1, 0xA0, 0, status, sizeof(status));
|
| 835 |
|
| 836 |
/* we got an error? */
|
| 837 |
if (r < 0)
|
| 838 |
{
|
| 839 |
DEBUG_INFO2("ICC Slot Status failed: %s", strerror(errno));
|
| 840 |
if (ENODEV == errno)
|
| 841 |
return IFD_NO_SUCH_DEVICE;
|
| 842 |
return IFD_COMMUNICATION_ERROR;
|
| 843 |
}
|
| 844 |
|
| 845 |
/* busy */
|
| 846 |
if (status[0] & 0x40)
|
| 847 |
{
|
| 848 |
DEBUG_INFO2("Busy: 0x%02X", status[0]);
|
| 849 |
usleep(1000 * 10);
|
| 850 |
goto again_status;
|
| 851 |
}
|
| 852 |
|
| 853 |
/* simulate a CCID bStatus */
|
| 854 |
/* present and active by default */
|
| 855 |
buffer[7] = CCID_ICC_PRESENT_ACTIVE;
|
| 856 |
|
| 857 |
/* mute */
|
| 858 |
if (0x80 == status[0])
|
| 859 |
buffer[7] = CCID_ICC_ABSENT;
|
| 860 |
|
| 861 |
/* store the status for CmdXfrBlockCHAR_T0() */
|
| 862 |
buffer[0] = status[0];
|
| 863 |
|
| 864 |
return IFD_SUCCESS;
|
| 865 |
}
|
| 866 |
|
| 867 |
if (ICCD_B == ccid_descriptor->bInterfaceProtocol)
|
| 868 |
{
|
| 869 |
int r;
|
| 870 |
unsigned char buffer_tmp[3];
|
| 871 |
|
| 872 |
/* SlotStatus */
|
| 873 |
r = ControlUSB(reader_index, 0xA1, 0x81, 0, buffer_tmp,
|
| 874 |
sizeof(buffer_tmp));
|
| 875 |
|
| 876 |
/* we got an error? */
|
| 877 |
if (r < 0)
|
| 878 |
{
|
| 879 |
DEBUG_INFO2("ICC Slot Status failed: %s", strerror(errno));
|
| 880 |
if (ENODEV == errno)
|
| 881 |
return IFD_NO_SUCH_DEVICE;
|
| 882 |
return IFD_COMMUNICATION_ERROR;
|
| 883 |
}
|
| 884 |
|
| 885 |
/* simulate a CCID bStatus */
|
| 886 |
switch (buffer_tmp[1] & 0x03)
|
| 887 |
{
|
| 888 |
case 0:
|
| 889 |
buffer[7] = CCID_ICC_PRESENT_ACTIVE;
|
| 890 |
break;
|
| 891 |
case 1:
|
| 892 |
buffer[7] = CCID_ICC_PRESENT_INACTIVE;
|
| 893 |
break;
|
| 894 |
case 2:
|
| 895 |
case 3:
|
| 896 |
buffer[7] = CCID_ICC_ABSENT;
|
| 897 |
}
|
| 898 |
return IFD_SUCCESS;
|
| 899 |
}
|
| 900 |
|
| 901 |
cmd[0] = 0x65; /* GetSlotStatus */
|
| 902 |
cmd[1] = cmd[2] = cmd[3] = cmd[4] = 0; /* dwLength */
|
| 903 |
cmd[5] = ccid_descriptor->bCurrentSlotIndex; /* slot number */
|
| 904 |
cmd[6] = (*ccid_descriptor->pbSeq)++;
|
| 905 |
cmd[7] = cmd[8] = cmd[9] = 0; /* RFU */
|
| 906 |
|
| 907 |
res = WritePort(reader_index, sizeof(cmd), cmd);
|
| 908 |
if (res != STATUS_SUCCESS)
|
| 909 |
{
|
| 910 |
if (STATUS_NO_SUCH_DEVICE == res)
|
| 911 |
return IFD_NO_SUCH_DEVICE;
|
| 912 |
return IFD_COMMUNICATION_ERROR;
|
| 913 |
}
|
| 914 |
|
| 915 |
length = SIZE_GET_SLOT_STATUS;
|
| 916 |
res = ReadPort(reader_index, &length, buffer);
|
| 917 |
if (res != STATUS_SUCCESS)
|
| 918 |
return IFD_COMMUNICATION_ERROR;
|
| 919 |
|
| 920 |
if (length < STATUS_OFFSET+1)
|
| 921 |
{
|
| 922 |
DEBUG_CRITICAL2("Not enough data received: %d bytes", length);
|
| 923 |
return IFD_COMMUNICATION_ERROR;
|
| 924 |
}
|
| 925 |
|
| 926 |
if (buffer[STATUS_OFFSET] & CCID_COMMAND_FAILED)
|
| 927 |
{
|
| 928 |
#ifdef O2MICRO_OZ776_PATCH
|
| 929 |
/* the O2MICRO OZ 776 reader sends card absent or mute errors
|
| 930 |
* when no card is inserted */
|
| 931 |
if (! ((OZ776 == ccid_descriptor->readerID)
|
| 932 |
&& (buffer[ERROR_OFFSET] == 0xFE)))
|
| 933 |
#endif
|
| 934 |
ccid_error(buffer[ERROR_OFFSET], __FILE__, __LINE__, __FUNCTION__); /* bError */
|
| 935 |
|
| 936 |
/* card absent or mute is not an communication error */
|
| 937 |
if (buffer[ERROR_OFFSET] != 0xFE)
|
| 938 |
return_value = IFD_COMMUNICATION_ERROR;
|
| 939 |
}
|
| 940 |
|
| 941 |
return return_value;
|
| 942 |
} /* CmdGetSlotStatus */
|
| 943 |
|
| 944 |
|
| 945 |
/*****************************************************************************
|
| 946 |
*
|
| 947 |
* CmdXfrBlock
|
| 948 |
*
|
| 949 |
****************************************************************************/
|
| 950 |
RESPONSECODE CmdXfrBlock(unsigned int reader_index, unsigned int tx_length,
|
| 951 |
unsigned char tx_buffer[], unsigned int *rx_length,
|
| 952 |
unsigned char rx_buffer[], int protocol)
|
| 953 |
{
|
| 954 |
RESPONSECODE return_value = IFD_SUCCESS;
|
| 955 |
_ccid_descriptor *ccid_descriptor = get_ccid_descriptor(reader_index);
|
| 956 |
|
| 957 |
/* APDU or TPDU? */
|
| 958 |
switch (ccid_descriptor->dwFeatures & CCID_CLASS_EXCHANGE_MASK)
|
| 959 |
{
|
| 960 |
case CCID_CLASS_TPDU:
|
| 961 |
if (protocol == T_0)
|
| 962 |
return_value = CmdXfrBlockTPDU_T0(reader_index,
|
| 963 |
tx_length, tx_buffer, rx_length, rx_buffer);
|
| 964 |
else
|
| 965 |
if (protocol == T_1)
|
| 966 |
return_value = CmdXfrBlockTPDU_T1(reader_index, tx_length,
|
| 967 |
tx_buffer, rx_length, rx_buffer);
|
| 968 |
else
|
| 969 |
return_value = IFD_PROTOCOL_NOT_SUPPORTED;
|
| 970 |
break;
|
| 971 |
|
| 972 |
case CCID_CLASS_SHORT_APDU:
|
| 973 |
return_value = CmdXfrBlockTPDU_T0(reader_index,
|
| 974 |
tx_length, tx_buffer, rx_length, rx_buffer);
|
| 975 |
break;
|
| 976 |
|
| 977 |
case CCID_CLASS_EXTENDED_APDU:
|
| 978 |
return_value = CmdXfrBlockAPDU_extended(reader_index,
|
| 979 |
tx_length, tx_buffer, rx_length, rx_buffer);
|
| 980 |
break;
|
| 981 |
|
| 982 |
case CCID_CLASS_CHARACTER:
|
| 983 |
if (protocol == T_0)
|
| 984 |
return_value = CmdXfrBlockCHAR_T0(reader_index, tx_length,
|
| 985 |
tx_buffer, rx_length, rx_buffer);
|
| 986 |
else
|
| 987 |
if (protocol == T_1)
|
| 988 |
return_value = CmdXfrBlockTPDU_T1(reader_index, tx_length,
|
| 989 |
tx_buffer, rx_length, rx_buffer);
|
| 990 |
else
|
| 991 |
return_value = IFD_PROTOCOL_NOT_SUPPORTED;
|
| 992 |
break;
|
| 993 |
|
| 994 |
default:
|
| 995 |
return_value = IFD_COMMUNICATION_ERROR;
|
| 996 |
}
|
| 997 |
|
| 998 |
return return_value;
|
| 999 |
} /* CmdXfrBlock */
|
| 1000 |
|
| 1001 |
|
| 1002 |
/*****************************************************************************
|
| 1003 |
*
|
| 1004 |
* CCID_Transmit
|
| 1005 |
*
|
| 1006 |
****************************************************************************/
|
| 1007 |
RESPONSECODE CCID_Transmit(unsigned int reader_index, unsigned int tx_length,
|
| 1008 |
const unsigned char tx_buffer[], unsigned short rx_length, unsigned char bBWI)
|
| 1009 |
{
|
| 1010 |
unsigned char cmd[10+CMD_BUF_SIZE]; /* CCID + APDU buffer */
|
| 1011 |
_ccid_descriptor *ccid_descriptor = get_ccid_descriptor(reader_index);
|
| 1012 |
status_t ret;
|
| 1013 |
|
| 1014 |
if (ICCD_A == ccid_descriptor->bInterfaceProtocol)
|
| 1015 |
{
|
| 1016 |
int r;
|
| 1017 |
|
| 1018 |
/* Xfr Block */
|
| 1019 |
r = ControlUSB(reader_index, 0x21, 0x65, 0, tx_buffer, tx_length);
|
| 1020 |
|
| 1021 |
/* we got an error? */
|
| 1022 |
if (r < 0)
|
| 1023 |
{
|
| 1024 |
DEBUG_INFO2("ICC Xfr Block failed: %s", strerror(errno));
|
| 1025 |
return IFD_COMMUNICATION_ERROR;
|
| 1026 |
}
|
| 1027 |
|
| 1028 |
return IFD_SUCCESS;
|
| 1029 |
}
|
| 1030 |
|
| 1031 |
if (ICCD_B == ccid_descriptor->bInterfaceProtocol)
|
| 1032 |
{
|
| 1033 |
int r;
|
| 1034 |
|
| 1035 |
/* nul block so we are chaining */
|
| 1036 |
if (NULL == tx_buffer)
|
| 1037 |
rx_length = 0x10; /* bLevelParameter */
|
| 1038 |
|
| 1039 |
/* Xfr Block */
|
| 1040 |
DEBUG_COMM2("chain parameter: %d", rx_length);
|
| 1041 |
r = ControlUSB(reader_index, 0x21, 0x65, rx_length << 8, tx_buffer,
|
| 1042 |
tx_length);
|
| 1043 |
|
| 1044 |
/* we got an error? */
|
| 1045 |
if (r < 0)
|
| 1046 |
{
|
| 1047 |
DEBUG_INFO2("ICC Xfr Block failed: %s", strerror(errno));
|
| 1048 |
return IFD_COMMUNICATION_ERROR;
|
| 1049 |
}
|
| 1050 |
|
| 1051 |
return IFD_SUCCESS;
|
| 1052 |
}
|
| 1053 |
|
| 1054 |
cmd[0] = 0x6F; /* XfrBlock */
|
| 1055 |
i2dw(tx_length, cmd+1); /* APDU length */
|
| 1056 |
cmd[5] = ccid_descriptor->bCurrentSlotIndex; /* slot number */
|
| 1057 |
cmd[6] = (*ccid_descriptor->pbSeq)++;
|
| 1058 |
cmd[7] = bBWI; /* extend block waiting timeout */
|
| 1059 |
cmd[8] = rx_length & 0xFF; /* Expected length, in character mode only */
|
| 1060 |
cmd[9] = (rx_length >> 8) & 0xFF;
|
| 1061 |
|
| 1062 |
/* check that the command is not too large */
|
| 1063 |
if (tx_length > CMD_BUF_SIZE)
|
| 1064 |
{
|
| 1065 |
DEBUG_CRITICAL2("TX Length too big: %d", tx_length);
|
| 1066 |
return IFD_NOT_SUPPORTED;
|
| 1067 |
}
|
| 1068 |
|
| 1069 |
memcpy(cmd+10, tx_buffer, tx_length);
|
| 1070 |
|
| 1071 |
ret = WritePort(reader_index, 10+tx_length, cmd);
|
| 1072 |
if (STATUS_NO_SUCH_DEVICE == ret)
|
| 1073 |
return IFD_NO_SUCH_DEVICE;
|
| 1074 |
if (ret != STATUS_SUCCESS)
|
| 1075 |
return IFD_COMMUNICATION_ERROR;
|
| 1076 |
|
| 1077 |
return IFD_SUCCESS;
|
| 1078 |
} /* CCID_Transmit */
|
| 1079 |
|
| 1080 |
|
| 1081 |
/*****************************************************************************
|
| 1082 |
*
|
| 1083 |
* CCID_Receive
|
| 1084 |
*
|
| 1085 |
****************************************************************************/
|
| 1086 |
RESPONSECODE CCID_Receive(unsigned int reader_index, unsigned int *rx_length,
|
| 1087 |
unsigned char rx_buffer[], unsigned char *chain_parameter)
|
| 1088 |
{
|
| 1089 |
unsigned char cmd[10+CMD_BUF_SIZE]; /* CCID + APDU buffer */
|
| 1090 |
unsigned int length;
|
| 1091 |
RESPONSECODE return_value = IFD_SUCCESS;
|
| 1092 |
_ccid_descriptor *ccid_descriptor = get_ccid_descriptor(reader_index);
|
| 1093 |
status_t ret;
|
| 1094 |
|
| 1095 |
if (ICCD_A == ccid_descriptor->bInterfaceProtocol)
|
| 1096 |
{
|
| 1097 |
int r;
|
| 1098 |
|
| 1099 |
/* Data Block */
|
| 1100 |
r = ControlUSB(reader_index, 0xA1, 0x6F, 0, rx_buffer, *rx_length);
|
| 1101 |
|
| 1102 |
/* we got an error? */
|
| 1103 |
if (r < 0)
|
| 1104 |
{
|
| 1105 |
DEBUG_INFO2("ICC Data Block failed: %s", strerror(errno));
|
| 1106 |
return IFD_COMMUNICATION_ERROR;
|
| 1107 |
}
|
| 1108 |
|
| 1109 |
return IFD_SUCCESS;
|
| 1110 |
}
|
| 1111 |
|
| 1112 |
if (ICCD_B == ccid_descriptor->bInterfaceProtocol)
|
| 1113 |
{
|
| 1114 |
int r;
|
| 1115 |
unsigned char rx_tmp[4];
|
| 1116 |
|
| 1117 |
/* read a nul block. buffer need to be at least 4-bytes */
|
| 1118 |
if (NULL == rx_buffer)
|
| 1119 |
{
|
| 1120 |
rx_buffer = rx_tmp;
|
| 1121 |
*rx_length = sizeof(rx_tmp);
|
| 1122 |
}
|
| 1123 |
|
| 1124 |
time_request_ICCD_B:
|
| 1125 |
/* Data Block */
|
| 1126 |
r = ControlUSB(reader_index, 0xA1, 0x6F, 0, rx_buffer, *rx_length);
|
| 1127 |
|
| 1128 |
/* we got an error? */
|
| 1129 |
if (r < 0)
|
| 1130 |
{
|
| 1131 |
DEBUG_INFO2("ICC Data Block failed: %s", strerror(errno));
|
| 1132 |
return IFD_COMMUNICATION_ERROR;
|
| 1133 |
}
|
| 1134 |
|
| 1135 |
/* bResponseType */
|
| 1136 |
switch (rx_buffer[0])
|
| 1137 |
{
|
| 1138 |
case 0x00:
|
| 1139 |
/* the abData field contains the information created by the
|
| 1140 |
* preceding request */
|
| 1141 |
break;
|
| 1142 |
|
| 1143 |
case 0x40:
|
| 1144 |
/* Status Information */
|
| 1145 |
ccid_error(rx_buffer[2], __FILE__, __LINE__, __FUNCTION__);
|
| 1146 |
return IFD_COMMUNICATION_ERROR;
|
| 1147 |
|
| 1148 |
case 0x80:
|
| 1149 |
/* Polling */
|
| 1150 |
{
|
| 1151 |
int delay;
|
| 1152 |
|
| 1153 |
delay = (rx_buffer[2] << 8) + rx_buffer[1];
|
| 1154 |
DEBUG_COMM2("Pooling delay: %d", delay);
|
| 1155 |
|
| 1156 |
if (0 == delay)
|
| 1157 |
/* host select the delay */
|
| 1158 |
delay = 1;
|
| 1159 |
usleep(delay * 1000 * 10);
|
| 1160 |
goto time_request_ICCD_B;
|
| 1161 |
}
|
| 1162 |
|
| 1163 |
case 0x01:
|
| 1164 |
case 0x02:
|
| 1165 |
case 0x03:
|
| 1166 |
case 0x10:
|
| 1167 |
/* Extended case
|
| 1168 |
* Only valid for Data Block frames */
|
| 1169 |
if (chain_parameter)
|
| 1170 |
*chain_parameter = rx_buffer[0];
|
| 1171 |
break;
|
| 1172 |
|
| 1173 |
default:
|
| 1174 |
DEBUG_CRITICAL2("Unknown bResponseType: 0x%02X", rx_buffer[0]);
|
| 1175 |
return IFD_COMMUNICATION_ERROR;
|
| 1176 |
}
|
| 1177 |
|
| 1178 |
memmove(rx_buffer, rx_buffer+1, r-1);
|
| 1179 |
*rx_length = r-1;
|
| 1180 |
|
| 1181 |
return IFD_SUCCESS;
|
| 1182 |
}
|
| 1183 |
|
| 1184 |
time_request:
|
| 1185 |
length = sizeof(cmd);
|
| 1186 |
ret = ReadPort(reader_index, &length, cmd);
|
| 1187 |
if (ret != STATUS_SUCCESS)
|
| 1188 |
{
|
| 1189 |
if (STATUS_NO_SUCH_DEVICE == ret)
|
| 1190 |
return IFD_NO_SUCH_DEVICE;
|
| 1191 |
return IFD_COMMUNICATION_ERROR;
|
| 1192 |
}
|
| 1193 |
|
| 1194 |
if (length < STATUS_OFFSET+1)
|
| 1195 |
{
|
| 1196 |
DEBUG_CRITICAL2("Not enough data received: %d bytes", length);
|
| 1197 |
return IFD_COMMUNICATION_ERROR;
|
| 1198 |
}
|
| 1199 |
|
| 1200 |
if (cmd[STATUS_OFFSET] & CCID_COMMAND_FAILED)
|
| 1201 |
{
|
| 1202 |
ccid_error(cmd[ERROR_OFFSET], __FILE__, __LINE__, __FUNCTION__); /* bError */
|
| 1203 |
switch (cmd[ERROR_OFFSET])
|
| 1204 |
{
|
| 1205 |
case 0xEF: /* cancel */
|
| 1206 |
if (*rx_length < 2)
|
| 1207 |
return IFD_COMMUNICATION_ERROR;
|
| 1208 |
rx_buffer[0]= 0x64;
|
| 1209 |
rx_buffer[1]= 0x01;
|
| 1210 |
*rx_length = 2;
|
| 1211 |
return IFD_SUCCESS;
|
| 1212 |
|
| 1213 |
case 0xF0: /* timeout */
|
| 1214 |
if (*rx_length < 2)
|
| 1215 |
return IFD_COMMUNICATION_ERROR;
|
| 1216 |
rx_buffer[0]= 0x64;
|
| 1217 |
rx_buffer[1]= 0x00;
|
| 1218 |
*rx_length = 2;
|
| 1219 |
return IFD_SUCCESS;
|
| 1220 |
|
| 1221 |
case 0xFD: /* Parity error during exchange */
|
| 1222 |
return IFD_PARITY_ERROR;
|
| 1223 |
|
| 1224 |
default:
|
| 1225 |
return IFD_COMMUNICATION_ERROR;
|
| 1226 |
}
|
| 1227 |
}
|
| 1228 |
|
| 1229 |
if (cmd[STATUS_OFFSET] & CCID_TIME_EXTENSION)
|
| 1230 |
{
|
| 1231 |
DEBUG_COMM2("Time extension requested: 0x%02X", cmd[ERROR_OFFSET]);
|
| 1232 |
goto time_request;
|
| 1233 |
}
|
| 1234 |
|
| 1235 |
length = dw2i(cmd, 1);
|
| 1236 |
if (length <= *rx_length)
|
| 1237 |
*rx_length = length;
|
| 1238 |
else
|
| 1239 |
{
|
| 1240 |
DEBUG_CRITICAL2("overrun by %d bytes", length - *rx_length);
|
| 1241 |
length = *rx_length;
|
| 1242 |
return_value = IFD_ERROR_INSUFFICIENT_BUFFER;
|
| 1243 |
}
|
| 1244 |
memcpy(rx_buffer, cmd+10, length);
|
| 1245 |
|
| 1246 |
/* Extended case?
|
| 1247 |
* Only valid for RDR_to_PC_DataBlock frames */
|
| 1248 |
if (chain_parameter)
|
| 1249 |
*chain_parameter = cmd[CHAIN_PARAMETER_OFFSET];
|
| 1250 |
|
| 1251 |
return return_value;
|
| 1252 |
} /* CCID_Receive */
|
| 1253 |
|
| 1254 |
|
| 1255 |
/*****************************************************************************
|
| 1256 |
*
|
| 1257 |
* CmdXfrBlockAPDU_extended
|
| 1258 |
*
|
| 1259 |
****************************************************************************/
|
| 1260 |
static RESPONSECODE CmdXfrBlockAPDU_extended(unsigned int reader_index,
|
| 1261 |
unsigned int tx_length, unsigned char tx_buffer[], unsigned int *rx_length,
|
| 1262 |
unsigned char rx_buffer[])
|
| 1263 |
{
|
| 1264 |
RESPONSECODE return_value;
|
| 1265 |
_ccid_descriptor *ccid_descriptor = get_ccid_descriptor(reader_index);
|
| 1266 |
unsigned char chain_parameter;
|
| 1267 |
unsigned int local_tx_length, sent_length;
|
| 1268 |
unsigned int local_rx_length, received_length;
|
| 1269 |
int buffer_overflow = 0;
|
| 1270 |
|
| 1271 |
if (ICCD_B == ccid_descriptor->bInterfaceProtocol)
|
| 1272 |
{
|
| 1273 |
/* length is on 16-bits only
|
| 1274 |
* if a size > 0x1000 is used then usb_control_msg() fails with
|
| 1275 |
* "Invalid argument" */
|
| 1276 |
if (*rx_length > 0x1000)
|
| 1277 |
*rx_length = 0x1000;
|
| 1278 |
}
|
| 1279 |
|
| 1280 |
DEBUG_COMM2("T=0 (extended): %d bytes", tx_length);
|
| 1281 |
|
| 1282 |
/* send the APDU */
|
| 1283 |
sent_length = 0;
|
| 1284 |
|
| 1285 |
/* we suppose one command is enough */
|
| 1286 |
chain_parameter = 0x00;
|
| 1287 |
|
| 1288 |
local_tx_length = tx_length - sent_length;
|
| 1289 |
if (local_tx_length > CMD_BUF_SIZE)
|
| 1290 |
{
|
| 1291 |
local_tx_length = CMD_BUF_SIZE;
|
| 1292 |
/* the command APDU begins with this command, and continue in the next
|
| 1293 |
* PC_to_RDR_XfrBlock */
|
| 1294 |
chain_parameter = 0x01;
|
| 1295 |
}
|
| 1296 |
if (local_tx_length > ccid_descriptor->dwMaxCCIDMessageLength-10)
|
| 1297 |
{
|
| 1298 |
local_tx_length = ccid_descriptor->dwMaxCCIDMessageLength-10;
|
| 1299 |
chain_parameter = 0x01;
|
| 1300 |
}
|
| 1301 |
|
| 1302 |
send_next_block:
|
| 1303 |
return_value = CCID_Transmit(reader_index, local_tx_length, tx_buffer,
|
| 1304 |
chain_parameter, 0);
|
| 1305 |
if (return_value != IFD_SUCCESS)
|
| 1306 |
return return_value;
|
| 1307 |
|
| 1308 |
sent_length += local_tx_length;
|
| 1309 |
tx_buffer += local_tx_length;
|
| 1310 |
|
| 1311 |
/* we just sent the last block (0x02) or only one block was needded (0x00) */
|
| 1312 |
if ((0x02 == chain_parameter) || (0x00 == chain_parameter))
|
| 1313 |
goto receive_block;
|
| 1314 |
|
| 1315 |
/* read a nul block */
|
| 1316 |
return_value = CCID_Receive(reader_index, &local_rx_length, NULL, NULL);
|
| 1317 |
if (return_value != IFD_SUCCESS)
|
| 1318 |
return return_value;
|
| 1319 |
|
| 1320 |
/* size of the next block */
|
| 1321 |
if (tx_length - sent_length > local_tx_length)
|
| 1322 |
{
|
| 1323 |
/* the abData field continues a command APDU and
|
| 1324 |
* another block is to follow */
|
| 1325 |
chain_parameter = 0x03;
|
| 1326 |
}
|
| 1327 |
else
|
| 1328 |
{
|
| 1329 |
/* this abData field continues a command APDU and ends
|
| 1330 |
* the APDU command */
|
| 1331 |
chain_parameter = 0x02;
|
| 1332 |
|
| 1333 |
/* last (smaller) block */
|
| 1334 |
local_tx_length = tx_length - sent_length;
|
| 1335 |
}
|
| 1336 |
|
| 1337 |
goto send_next_block;
|
| 1338 |
|
| 1339 |
receive_block:
|
| 1340 |
/* receive the APDU */
|
| 1341 |
received_length = 0;
|
| 1342 |
|
| 1343 |
receive_next_block:
|
| 1344 |
local_rx_length = *rx_length - received_length;
|
| 1345 |
return_value = CCID_Receive(reader_index, &local_rx_length, rx_buffer,
|
| 1346 |
&chain_parameter);
|
| 1347 |
if (IFD_ERROR_INSUFFICIENT_BUFFER == return_value)
|
| 1348 |
{
|
| 1349 |
buffer_overflow = 1;
|
| 1350 |
|
| 1351 |
/* we continue to read all the response APDU */
|
| 1352 |
return_value = IFD_SUCCESS;
|
| 1353 |
}
|
| 1354 |
|
| 1355 |
if (return_value != IFD_SUCCESS)
|
| 1356 |
return return_value;
|
| 1357 |
|
| 1358 |
/* advance in the reiceiving buffer */
|
| 1359 |
rx_buffer += local_rx_length;
|
| 1360 |
received_length += local_rx_length;
|
| 1361 |
|
| 1362 |
switch (chain_parameter)
|
| 1363 |
{
|
| 1364 |
/* the response APDU begins and ends in this command */
|
| 1365 |
case 0x00:
|
| 1366 |
/* this abData field continues the response APDU and ends the response
|
| 1367 |
* APDU */
|
| 1368 |
case 0x02:
|
| 1369 |
break;
|
| 1370 |
|
| 1371 |
/* the response APDU begins with this command and is to continue */
|
| 1372 |
case 0x01:
|
| 1373 |
/* this abData field continues the response APDU and another block is
|
| 1374 |
* to follow */
|
| 1375 |
case 0x03:
|
| 1376 |
/* empty abData field, continuation of the command APDU is expected in
|
| 1377 |
* next PC_to_RDR_XfrBlock command */
|
| 1378 |
case 0x10:
|
| 1379 |
/* send a nul block */
|
| 1380 |
return_value = CCID_Transmit(reader_index, 0, NULL, 0, 0);
|
| 1381 |
if (return_value != IFD_SUCCESS)
|
| 1382 |
return return_value;
|
| 1383 |
|
| 1384 |
goto receive_next_block;
|
| 1385 |
}
|
| 1386 |
|
| 1387 |
*rx_length = received_length;
|
| 1388 |
|
| 1389 |
/* generate an overflow detected by pcscd */
|
| 1390 |
if (buffer_overflow)
|
| 1391 |
(*rx_length)++;
|
| 1392 |
|
| 1393 |
return IFD_SUCCESS;
|
| 1394 |
} /* CmdXfrBlockAPDU_extended */
|
| 1395 |
|
| 1396 |
|
| 1397 |
/*****************************************************************************
|
| 1398 |
*
|
| 1399 |
* CmdXfrBlockTPDU_T0
|
| 1400 |
*
|
| 1401 |
****************************************************************************/
|
| 1402 |
static RESPONSECODE CmdXfrBlockTPDU_T0(unsigned int reader_index,
|
| 1403 |
unsigned int tx_length, unsigned char tx_buffer[], unsigned int *rx_length,
|
| 1404 |
unsigned char rx_buffer[])
|
| 1405 |
{
|
| 1406 |
RESPONSECODE return_value = IFD_SUCCESS;
|
| 1407 |
_ccid_descriptor *ccid_descriptor = get_ccid_descriptor(reader_index);
|
| 1408 |
|
| 1409 |
DEBUG_COMM2("T=0: %d bytes", tx_length);
|
| 1410 |
|
| 1411 |
/* command length too big for CCID reader? */
|
| 1412 |
if (tx_length > ccid_descriptor->dwMaxCCIDMessageLength-10)
|
| 1413 |
{
|
| 1414 |
DEBUG_CRITICAL3("Command too long (%d bytes) for max: %d bytes",
|
| 1415 |
tx_length, ccid_descriptor->dwMaxCCIDMessageLength-10);
|
| 1416 |
return IFD_COMMUNICATION_ERROR;
|
| 1417 |
}
|
| 1418 |
|
| 1419 |
/* command length too big for CCID driver? */
|
| 1420 |
if (tx_length > CMD_BUF_SIZE)
|
| 1421 |
{
|
| 1422 |
DEBUG_CRITICAL3("Command too long (%d bytes) for max: %d bytes",
|
| 1423 |
tx_length, CMD_BUF_SIZE);
|
| 1424 |
return IFD_COMMUNICATION_ERROR;
|
| 1425 |
}
|
| 1426 |
|
| 1427 |
return_value = CCID_Transmit(reader_index, tx_length, tx_buffer, 0, 0);
|
| 1428 |
if (return_value != IFD_SUCCESS)
|
| 1429 |
return return_value;
|
| 1430 |
|
| 1431 |
return CCID_Receive(reader_index, rx_length, rx_buffer, NULL);
|
| 1432 |
} /* CmdXfrBlockTPDU_T0 */
|
| 1433 |
|
| 1434 |
|
| 1435 |
/*****************************************************************************
|
| 1436 |
*
|
| 1437 |
* T0CmdParsing
|
| 1438 |
*
|
| 1439 |
****************************************************************************/
|
| 1440 |
static RESPONSECODE T0CmdParsing(unsigned char *cmd, unsigned int cmd_len,
|
| 1441 |
unsigned int *exp_len)
|
| 1442 |
{
|
| 1443 |
*exp_len = 0;
|
| 1444 |
|
| 1445 |
/* Ref: 7816-4 Annex A */
|
| 1446 |
switch (cmd_len)
|
| 1447 |
{
|
| 1448 |
case 4: /* Case 1 */
|
| 1449 |
*exp_len = 2; /* SW1 and SW2 only */
|
| 1450 |
break;
|
| 1451 |
|
| 1452 |
case 5: /* Case 2 */
|
| 1453 |
if (cmd[4] != 0)
|
| 1454 |
*exp_len = cmd[4] + 2;
|
| 1455 |
else
|
| 1456 |
*exp_len = 256 + 2;
|
| 1457 |
break;
|
| 1458 |
|
| 1459 |
default: /* Case 3 */
|
| 1460 |
if (cmd_len > 5 && cmd_len == (unsigned int)(cmd[4] + 5))
|
| 1461 |
*exp_len = 2; /* SW1 and SW2 only */
|
| 1462 |
else
|
| 1463 |
return IFD_COMMUNICATION_ERROR; /* situation not supported */
|
| 1464 |
break;
|
| 1465 |
}
|
| 1466 |
|
| 1467 |
return IFD_SUCCESS;
|
| 1468 |
} /* T0CmdParsing */
|
| 1469 |
|
| 1470 |
|
| 1471 |
/*****************************************************************************
|
| 1472 |
*
|
| 1473 |
* T0ProcACK
|
| 1474 |
*
|
| 1475 |
****************************************************************************/
|
| 1476 |
static RESPONSECODE T0ProcACK(unsigned int reader_index,
|
| 1477 |
unsigned char **snd_buf, unsigned int *snd_len,
|
| 1478 |
unsigned char **rcv_buf, unsigned int *rcv_len,
|
| 1479 |
unsigned char **in_buf, unsigned int *in_len,
|
| 1480 |
unsigned int proc_len, int is_rcv)
|
| 1481 |
{
|
| 1482 |
RESPONSECODE return_value;
|
| 1483 |
unsigned int remain_len;
|
| 1484 |
unsigned char tmp_buf[512];
|
| 1485 |
unsigned int ret_len;
|
| 1486 |
|
| 1487 |
DEBUG_COMM2("Enter, is_rcv = %d", is_rcv);
|
| 1488 |
|
| 1489 |
if (is_rcv == 1)
|
| 1490 |
{ /* Receiving mode */
|
| 1491 |
if (*in_len > 0)
|
| 1492 |
{ /* There are still available data in our buffer */
|
| 1493 |
if (*in_len >= proc_len)
|
| 1494 |
{
|
| 1495 |
/* We only need to get the data from our buffer */
|
| 1496 |
memcpy(*rcv_buf, *in_buf, proc_len);
|
| 1497 |
*rcv_buf += proc_len;
|
| 1498 |
*in_buf += proc_len;
|
| 1499 |
*rcv_len += proc_len;
|
| 1500 |
*in_len -= proc_len;
|
| 1501 |
|
| 1502 |
return IFD_SUCCESS;
|
| 1503 |
}
|
| 1504 |
else
|
| 1505 |
{
|
| 1506 |
/* Move all data in the input buffer to the reply buffer */
|
| 1507 |
remain_len = proc_len - *in_len;
|
| 1508 |
memcpy(*rcv_buf, *in_buf, *in_len);
|
| 1509 |
*rcv_buf += *in_len;
|
| 1510 |
*in_buf += *in_len;
|
| 1511 |
*rcv_len += *in_len;
|
| 1512 |
*in_len = 0;
|
| 1513 |
}
|
| 1514 |
}
|
| 1515 |
else
|
| 1516 |
/* There is no data in our tmp_buf,
|
| 1517 |
* we have to read all data we needed */
|
| 1518 |
remain_len = proc_len;
|
| 1519 |
|
| 1520 |
/* Read the expected data from the smartcard */
|
| 1521 |
if (*in_len != 0)
|
| 1522 |
{
|
| 1523 |
DEBUG_CRITICAL("*in_len != 0");
|
| 1524 |
return IFD_COMMUNICATION_ERROR;
|
| 1525 |
}
|
| 1526 |
|
| 1527 |
memset(tmp_buf, 0, sizeof(tmp_buf));
|
| 1528 |
|
| 1529 |
#ifdef O2MICRO_OZ776_PATCH
|
| 1530 |
if((0 != remain_len) && (0 == (remain_len + 10) % 64))
|
| 1531 |
{
|
| 1532 |
/* special hack to avoid a command of size modulo 64
|
| 1533 |
* we send two commands instead */
|
| 1534 |
ret_len = 1;
|
| 1535 |
return_value = CCID_Transmit(reader_index, 0, *snd_buf, ret_len, 0);
|
| 1536 |
if (return_value != IFD_SUCCESS)
|
| 1537 |
return return_value;
|
| 1538 |
return_value = CCID_Receive(reader_index, &ret_len, tmp_buf, NULL);
|
| 1539 |
if (return_value != IFD_SUCCESS)
|
| 1540 |
return return_value;
|
| 1541 |
|
| 1542 |
ret_len = remain_len - 1;
|
| 1543 |
return_value = CCID_Transmit(reader_index, 0, *snd_buf, ret_len, 0);
|
| 1544 |
if (return_value != IFD_SUCCESS)
|
| 1545 |
return return_value;
|
| 1546 |
return_value = CCID_Receive(reader_index, &ret_len, &tmp_buf[1],
|
| 1547 |
NULL);
|
| 1548 |
if (return_value != IFD_SUCCESS)
|
| 1549 |
return return_value;
|
| 1550 |
|
| 1551 |
ret_len += 1;
|
| 1552 |
}
|
| 1553 |
else
|
| 1554 |
#endif
|
| 1555 |
{
|
| 1556 |
ret_len = remain_len;
|
| 1557 |
return_value = CCID_Transmit(reader_index, 0, *snd_buf, ret_len, 0);
|
| 1558 |
if (return_value != IFD_SUCCESS)
|
| 1559 |
return return_value;
|
| 1560 |
|
| 1561 |
return_value = CCID_Receive(reader_index, &ret_len, tmp_buf, NULL);
|
| 1562 |
if (return_value != IFD_SUCCESS)
|
| 1563 |
return return_value;
|
| 1564 |
}
|
| 1565 |
memcpy(*rcv_buf, tmp_buf, remain_len);
|
| 1566 |
*rcv_buf += remain_len, *rcv_len += remain_len;
|
| 1567 |
|
| 1568 |
/* If ret_len != remain_len, our logic is erroneous */
|
| 1569 |
if (ret_len != remain_len)
|
| 1570 |
{
|
| 1571 |
DEBUG_CRITICAL("ret_len != remain_len");
|
| 1572 |
return IFD_COMMUNICATION_ERROR;
|
| 1573 |
}
|
| 1574 |
}
|
| 1575 |
else
|
| 1576 |
{ /* Sending mode */
|
| 1577 |
|
| 1578 |
return_value = CCID_Transmit(reader_index, proc_len, *snd_buf, 1, 0);
|
| 1579 |
if (return_value != IFD_SUCCESS)
|
| 1580 |
return return_value;
|
| 1581 |
|
| 1582 |
*snd_len -= proc_len;
|
| 1583 |
*snd_buf += proc_len;
|
| 1584 |
}
|
| 1585 |
|
| 1586 |
DEBUG_COMM("Exit");
|
| 1587 |
|
| 1588 |
return IFD_SUCCESS;
|
| 1589 |
} /* T0ProcACK */
|
| 1590 |
|
| 1591 |
|
| 1592 |
/*****************************************************************************
|
| 1593 |
*
|
| 1594 |
* T0ProcSW1
|
| 1595 |
*
|
| 1596 |
****************************************************************************/
|
| 1597 |
static RESPONSECODE T0ProcSW1(unsigned int reader_index,
|
| 1598 |
unsigned char *rcv_buf, unsigned int *rcv_len,
|
| 1599 |
unsigned char *in_buf, unsigned int in_len)
|
| 1600 |
{
|
| 1601 |
RESPONSECODE return_value = IFD_SUCCESS;
|
| 1602 |
UCHAR tmp_buf[512];
|
| 1603 |
unsigned char *rcv_buf_tmp = rcv_buf;
|
| 1604 |
const unsigned int rcv_len_tmp = *rcv_len;
|
| 1605 |
unsigned char sw1, sw2;
|
| 1606 |
|
| 1607 |
/* store the SW1 */
|
| 1608 |
sw1 = *rcv_buf = *in_buf;
|
| 1609 |
rcv_buf++;
|
| 1610 |
in_buf++;
|
| 1611 |
in_len--;
|
| 1612 |
(*rcv_len)++;
|
| 1613 |
|
| 1614 |
/* store the SW2 */
|
| 1615 |
if (0 == in_len)
|
| 1616 |
{
|
| 1617 |
return_value = CCID_Transmit(reader_index, 0, rcv_buf, 1, 0);
|
| 1618 |
if (return_value != IFD_SUCCESS)
|
| 1619 |
return return_value;
|
| 1620 |
|
| 1621 |
in_len = 1;
|
| 1622 |
|
| 1623 |
return_value = CCID_Receive(reader_index, &in_len, tmp_buf, NULL);
|
| 1624 |
if (return_value != IFD_SUCCESS)
|
| 1625 |
return return_value;
|
| 1626 |
|
| 1627 |
in_buf = tmp_buf;
|
| 1628 |
}
|
| 1629 |
sw2 = *rcv_buf = *in_buf;
|
| 1630 |
rcv_buf++;
|
| 1631 |
in_buf++;
|
| 1632 |
in_len--;
|
| 1633 |
(*rcv_len)++;
|
| 1634 |
|
| 1635 |
if (return_value != IFD_SUCCESS)
|
| 1636 |
{
|
| 1637 |
rcv_buf_tmp[0] = rcv_buf_tmp[1] = 0;
|
| 1638 |
*rcv_len = rcv_len_tmp;
|
| 1639 |
}
|
| 1640 |
|
| 1641 |
DEBUG_COMM3("Exit: SW=%02X %02X", sw1, sw2);
|
| 1642 |
|
| 1643 |
return return_value;
|
| 1644 |
} /* T0ProcSW1 */
|
| 1645 |
|
| 1646 |
|
| 1647 |
/*****************************************************************************
|
| 1648 |
*
|
| 1649 |
* CmdXfrBlockCHAR_T0
|
| 1650 |
*
|
| 1651 |
****************************************************************************/
|
| 1652 |
static RESPONSECODE CmdXfrBlockCHAR_T0(unsigned int reader_index,
|
| 1653 |
unsigned int snd_len, unsigned char snd_buf[], unsigned int *rcv_len,
|
| 1654 |
unsigned char rcv_buf[])
|
| 1655 |
{
|
| 1656 |
int is_rcv;
|
| 1657 |
unsigned char cmd[5];
|
| 1658 |
unsigned char tmp_buf[512];
|
| 1659 |
unsigned int exp_len, in_len;
|
| 1660 |
unsigned char ins, *in_buf;
|
| 1661 |
RESPONSECODE return_value = IFD_SUCCESS;
|
| 1662 |
_ccid_descriptor *ccid_descriptor = get_ccid_descriptor(reader_index);
|
| 1663 |
|
| 1664 |
DEBUG_COMM2("T=0: %d bytes", snd_len);
|
| 1665 |
|
| 1666 |
if (ICCD_A == ccid_descriptor->bInterfaceProtocol)
|
| 1667 |
{
|
| 1668 |
unsigned char pcbuffer[SIZE_GET_SLOT_STATUS];
|
| 1669 |
|
| 1670 |
/* Command to send to the smart card (must be 5 bytes) */
|
| 1671 |
memset(cmd, 0, sizeof(cmd));
|
| 1672 |
if (snd_len == 4)
|
| 1673 |
{
|
| 1674 |
memcpy(cmd, snd_buf, 4);
|
| 1675 |
snd_buf += 4;
|
| 1676 |
snd_len -= 4;
|
| 1677 |
}
|
| 1678 |
else
|
| 1679 |
{
|
| 1680 |
memcpy(cmd, snd_buf, 5);
|
| 1681 |
snd_buf += 5;
|
| 1682 |
snd_len -= 5;
|
| 1683 |
}
|
| 1684 |
|
| 1685 |
/* at most 5 bytes */
|
| 1686 |
return_value = CCID_Transmit(reader_index, 5, cmd, 0, 0);
|
| 1687 |
if (return_value != IFD_SUCCESS)
|
| 1688 |
return return_value;
|
| 1689 |
|
| 1690 |
/* wait for ready */
|
| 1691 |
return_value = CmdGetSlotStatus(reader_index, pcbuffer);
|
| 1692 |
if (return_value != IFD_SUCCESS)
|
| 1693 |
return return_value;
|
| 1694 |
|
| 1695 |
if ((0x20 != pcbuffer[0]) && (snd_len > 0))
|
| 1696 |
{
|
| 1697 |
/* continue sending the APDU */
|
| 1698 |
return_value = CCID_Transmit(reader_index, snd_len, snd_buf, 0, 0);
|
| 1699 |
if (return_value != IFD_SUCCESS)
|
| 1700 |
return return_value;
|
| 1701 |
}
|
| 1702 |
else
|
| 1703 |
{
|
| 1704 |
if ((0x20 == pcbuffer[0]) && (*rcv_len > 2))
|
| 1705 |
/* we will just read SW1-SW2 */
|
| 1706 |
*rcv_len = 2;
|
| 1707 |
|
| 1708 |
return_value = CCID_Receive(reader_index, rcv_len, rcv_buf, NULL);
|
| 1709 |
if (return_value != IFD_SUCCESS)
|
| 1710 |
DEBUG_CRITICAL("CCID_Receive failed");
|
| 1711 |
|
| 1712 |
return return_value;
|
| 1713 |
}
|
| 1714 |
|
| 1715 |
/* wait for ready */
|
| 1716 |
return_value = CmdGetSlotStatus(reader_index, pcbuffer);
|
| 1717 |
if (return_value != IFD_SUCCESS)
|
| 1718 |
return return_value;
|
| 1719 |
|
| 1720 |
if ((0x20 == pcbuffer[0]) && (*rcv_len > 2))
|
| 1721 |
/* we will just read SW1-SW2 */
|
| 1722 |
*rcv_len = 2;
|
| 1723 |
|
| 1724 |
/* read SW1-SW2 */
|
| 1725 |
return_value = CCID_Receive(reader_index, rcv_len, rcv_buf, NULL);
|
| 1726 |
if (return_value != IFD_SUCCESS)
|
| 1727 |
DEBUG_CRITICAL("CCID_Receive failed");
|
| 1728 |
|
| 1729 |
return return_value;
|
| 1730 |
}
|
| 1731 |
|
| 1732 |
in_buf = tmp_buf;
|
| 1733 |
in_len = 0;
|
| 1734 |
*rcv_len = 0;
|
| 1735 |
|
| 1736 |
return_value = T0CmdParsing(snd_buf, snd_len, &exp_len);
|
| 1737 |
if (return_value != IFD_SUCCESS)
|
| 1738 |
{
|
| 1739 |
DEBUG_CRITICAL("T0CmdParsing failed");
|
| 1740 |
return IFD_COMMUNICATION_ERROR;
|
| 1741 |
}
|
| 1742 |
|
| 1743 |
if (snd_len == 5 || snd_len == 4)
|
| 1744 |
is_rcv = 1;
|
| 1745 |
else
|
| 1746 |
is_rcv = 0;
|
| 1747 |
|
| 1748 |
/* Command to send to the smart card (must be 5 bytes, from 7816 p.15) */
|
| 1749 |
memset(cmd, 0, sizeof(cmd));
|
| 1750 |
if (snd_len == 4)
|
| 1751 |
{
|
| 1752 |
memcpy(cmd, snd_buf, 4);
|
| 1753 |
snd_buf += 4;
|
| 1754 |
snd_len -= 4;
|
| 1755 |
}
|
| 1756 |
else
|
| 1757 |
{
|
| 1758 |
memcpy(cmd, snd_buf, 5);
|
| 1759 |
snd_buf += 5;
|
| 1760 |
snd_len -= 5;
|
| 1761 |
}
|
| 1762 |
|
| 1763 |
/* Make sure this is a valid command by checking the INS field */
|
| 1764 |
ins = cmd[1];
|
| 1765 |
if ((ins & 0xF0) == 0x60 || /* 7816-3 8.3.2 */
|
| 1766 |
(ins & 0xF0) == 0x90)
|
| 1767 |
{
|
| 1768 |
DEBUG_CRITICAL2("fatal: INS (0x%02X) = 0x6X or 0x9X", ins);
|
| 1769 |
return IFD_COMMUNICATION_ERROR;
|
| 1770 |
}
|
| 1771 |
|
| 1772 |
return_value = CCID_Transmit(reader_index, 5, cmd, 1, 0);
|
| 1773 |
if (return_value != IFD_SUCCESS)
|
| 1774 |
return return_value;
|
| 1775 |
|
| 1776 |
while (1)
|
| 1777 |
{
|
| 1778 |
if (in_len == 0)
|
| 1779 |
{
|
| 1780 |
in_len = 1;
|
| 1781 |
return_value = CCID_Receive(reader_index, &in_len, tmp_buf, NULL);
|
| 1782 |
if (return_value != IFD_SUCCESS)
|
| 1783 |
{
|
| 1784 |
DEBUG_CRITICAL("CCID_Receive failed");
|
| 1785 |
return return_value;
|
| 1786 |
}
|
| 1787 |
in_buf = tmp_buf;
|
| 1788 |
}
|
| 1789 |
if (in_len == 0)
|
| 1790 |
{
|
| 1791 |
/* Suppose we should be able to get data.
|
| 1792 |
* If not, error. Set the time-out error */
|
| 1793 |
DEBUG_CRITICAL("error: in_len = 0");
|
| 1794 |
return IFD_RESPONSE_TIMEOUT;
|
| 1795 |
}
|
| 1796 |
|
| 1797 |
/* Start to process the procedure bytes */
|
| 1798 |
if (*in_buf == 0x60)
|
| 1799 |
{
|
| 1800 |
in_len = 0;
|
| 1801 |
return_value = CCID_Transmit(reader_index, 0, cmd, 1, 0);
|
| 1802 |
|
| 1803 |
if (return_value != IFD_SUCCESS)
|
| 1804 |
return return_value;
|
| 1805 |
|
| 1806 |
continue;
|
| 1807 |
}
|
| 1808 |
else if (*in_buf == ins || *in_buf == (ins ^ 0x01))
|
| 1809 |
{
|
| 1810 |
/* ACK => To transfer all remaining data bytes */
|
| 1811 |
in_buf++, in_len--;
|
| 1812 |
if (is_rcv)
|
| 1813 |
return_value = T0ProcACK(reader_index, &snd_buf, &snd_len,
|
| 1814 |
&rcv_buf, rcv_len, &in_buf, &in_len, exp_len - *rcv_len, 1);
|
| 1815 |
else
|
| 1816 |
return_value = T0ProcACK(reader_index, &snd_buf, &snd_len,
|
| 1817 |
&rcv_buf, rcv_len, &in_buf, &in_len, snd_len, 0);
|
| 1818 |
|
| 1819 |
if (*rcv_len == exp_len)
|
| 1820 |
return return_value;
|
| 1821 |
|
| 1822 |
continue;
|
| 1823 |
}
|
| 1824 |
else if (*in_buf == (ins ^ 0xFF) || *in_buf == (ins ^ 0xFE))
|
| 1825 |
{
|
| 1826 |
/* ACK => To transfer 1 remaining bytes */
|
| 1827 |
in_buf++, in_len--;
|
| 1828 |
return_value = T0ProcACK(reader_index, &snd_buf, &snd_len,
|
| 1829 |
&rcv_buf, rcv_len, &in_buf, &in_len, 1, is_rcv);
|
| 1830 |
|
| 1831 |
if (return_value != IFD_SUCCESS)
|
| 1832 |
return return_value;
|
| 1833 |
|
| 1834 |
continue;
|
| 1835 |
}
|
| 1836 |
else if ((*in_buf & 0xF0) == 0x60 || (*in_buf & 0xF0) == 0x90)
|
| 1837 |
/* SW1 */
|
| 1838 |
return T0ProcSW1(reader_index, rcv_buf, rcv_len, in_buf, in_len);
|
| 1839 |
|
| 1840 |
/* Error, unrecognized situation found */
|
| 1841 |
DEBUG_CRITICAL2("Unrecognized Procedure byte (0x%02X) found!", *in_buf);
|
| 1842 |
return return_value;
|
| 1843 |
}
|
| 1844 |
|
| 1845 |
return return_value;
|
| 1846 |
} /* CmdXfrBlockCHAR_T0 */
|
| 1847 |
|
| 1848 |
|
| 1849 |
/*****************************************************************************
|
| 1850 |
*
|
| 1851 |
* CmdXfrBlockTPDU_T1
|
| 1852 |
*
|
| 1853 |
****************************************************************************/
|
| 1854 |
static RESPONSECODE CmdXfrBlockTPDU_T1(unsigned int reader_index,
|
| 1855 |
unsigned int tx_length, unsigned char tx_buffer[], unsigned int *rx_length,
|
| 1856 |
unsigned char rx_buffer[])
|
| 1857 |
{
|
| 1858 |
RESPONSECODE return_value = IFD_SUCCESS;
|
| 1859 |
int ret;
|
| 1860 |
|
| 1861 |
DEBUG_COMM3("T=1: %d and %d bytes", tx_length, *rx_length);
|
| 1862 |
|
| 1863 |
ret = t1_transceive(&((get_ccid_slot(reader_index)) -> t1), 0,
|
| 1864 |
tx_buffer, tx_length, rx_buffer, *rx_length);
|
| 1865 |
|
| 1866 |
if (ret < 0)
|
| 1867 |
return_value = IFD_COMMUNICATION_ERROR;
|
| 1868 |
else
|
| 1869 |
*rx_length = ret;
|
| 1870 |
|
| 1871 |
return return_value;
|
| 1872 |
} /* CmdXfrBlockTPDU_T1 */
|
| 1873 |
|
| 1874 |
|
| 1875 |
/*****************************************************************************
|
| 1876 |
*
|
| 1877 |
* SetParameters
|
| 1878 |
*
|
| 1879 |
****************************************************************************/
|
| 1880 |
RESPONSECODE SetParameters(unsigned int reader_index, char protocol,
|
| 1881 |
unsigned int length, unsigned char buffer[])
|
| 1882 |
{
|
| 1883 |
unsigned char cmd[10+CMD_BUF_SIZE]; /* CCID + APDU buffer */
|
| 1884 |
_ccid_descriptor *ccid_descriptor = get_ccid_descriptor(reader_index);
|
| 1885 |
|
| 1886 |
DEBUG_COMM2("length: %d bytes", length);
|
| 1887 |
|
| 1888 |
cmd[0] = 0x61; /* SetParameters */
|
| 1889 |
i2dw(length, cmd+1); /* APDU length */
|
| 1890 |
cmd[5] = ccid_descriptor->bCurrentSlotIndex; /* slot number */
|
| 1891 |
cmd[6] = (*ccid_descriptor->pbSeq)++;
|
| 1892 |
cmd[7] = protocol; /* bProtocolNum */
|
| 1893 |
cmd[8] = cmd[9] = 0; /* RFU */
|
| 1894 |
|
| 1895 |
/* check that the command is not too large */
|
| 1896 |
if (length > CMD_BUF_SIZE)
|
| 1897 |
return IFD_NOT_SUPPORTED;
|
| 1898 |
|
| 1899 |
memcpy(cmd+10, buffer, length);
|
| 1900 |
|
| 1901 |
if (WritePort(reader_index, 10+length, cmd) != STATUS_SUCCESS)
|
| 1902 |
return IFD_COMMUNICATION_ERROR;
|
| 1903 |
|
| 1904 |
length = sizeof(cmd);
|
| 1905 |
if (ReadPort(reader_index, &length, cmd) != STATUS_SUCCESS)
|
| 1906 |
return IFD_COMMUNICATION_ERROR;
|
| 1907 |
|
| 1908 |
if (length < STATUS_OFFSET+1)
|
| 1909 |
{
|
| 1910 |
DEBUG_CRITICAL2("Not enough data received: %d bytes", length);
|
| 1911 |
return IFD_COMMUNICATION_ERROR;
|
| 1912 |
}
|
| 1913 |
|
| 1914 |
if (cmd[STATUS_OFFSET] & CCID_COMMAND_FAILED)
|
| 1915 |
{
|
| 1916 |
ccid_error(cmd[ERROR_OFFSET], __FILE__, __LINE__, __FUNCTION__); /* bError */
|
| 1917 |
if (0x00 == cmd[ERROR_OFFSET]) /* command not supported */
|
| 1918 |
return IFD_NOT_SUPPORTED;
|
| 1919 |
else
|
| 1920 |
if ((cmd[ERROR_OFFSET] >= 1) && (cmd[ERROR_OFFSET] <= 127))
|
| 1921 |
/* a parameter is not changeable */
|
| 1922 |
return IFD_SUCCESS;
|
| 1923 |
else
|
| 1924 |
return IFD_COMMUNICATION_ERROR;
|
| 1925 |
}
|
| 1926 |
|
| 1927 |
return IFD_SUCCESS;
|
| 1928 |
} /* SetParameters */
|
| 1929 |
|
| 1930 |
|
| 1931 |
/*****************************************************************************
|
| 1932 |
*
|
| 1933 |
* isCharLevel
|
| 1934 |
*
|
| 1935 |
****************************************************************************/
|
| 1936 |
int isCharLevel(int reader_index)
|
| 1937 |
{
|
| 1938 |
return CCID_CLASS_CHARACTER == (get_ccid_descriptor(reader_index)->dwFeatures & CCID_CLASS_EXCHANGE_MASK);
|
| 1939 |
} /* isCharLevel */
|
| 1940 |
|
| 1941 |
|
| 1942 |
/*****************************************************************************
|
| 1943 |
*
|
| 1944 |
* i2dw
|
| 1945 |
*
|
| 1946 |
****************************************************************************/
|
| 1947 |
static void i2dw(int value, unsigned char buffer[])
|
| 1948 |
{
|
| 1949 |
buffer[0] = value & 0xFF;
|
| 1950 |
buffer[1] = (value >> 8) & 0xFF;
|
| 1951 |
buffer[2] = (value >> 16) & 0xFF;
|
| 1952 |
buffer[3] = (value >> 24) & 0xFF;
|
| 1953 |
} /* i2dw */
|
| 1954 |
|
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