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Fixed handling of USB CCID/ICCD error

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NIIBE Yutaka
2010-09-16 11:03:14 +09:00
parent 8bf281a656
commit 1f2721a493
3 changed files with 66 additions and 13 deletions
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6
ChangeLog
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@@ -1,3 +1,9 @@
2010-09-16 NIIBE Yutaka <gniibe@fsij.org>
* src/usb-icc.c (icc_error): New function.
(icc_handle_data): Call icc_error.
Don't go to STATE_START on errors.
2010-09-13 NIIBE Yutaka <gniibe@fsij.org>
* Version 0.2.

2
THANKS
View File

@@ -6,7 +6,7 @@ encouraging the development, testing the implementation, suggesting
improvements, or fixing bugs. Here is a list of those people.
Jan Sur jan@suhr.info
NAGAMI Takeshi nagami-takeshi@aist.go.jp
Kaz Kojima kkojima@rr.iij4u.or.jp
NAGAMI Takeshi nagami-takeshi@aist.go.jp
Shane Coughlan scoughlan@openinventionnetwork.com
Werner Koch wk@gnupg.org

71
src/usb-icc.c
View File

@@ -57,6 +57,12 @@
#define ICC_ERROR_XFR_OVERRUN 0xFC
/*
* Since command-byte is at offset 0,
* error with offset 0 means "command not supported".
*/
#define ICC_OFFSET_CMD_NOT_SUPPORTED 0
#define ICC_OFFSET_PARAM 8
struct icc_header {
uint8_t msg_type;
@@ -175,6 +181,41 @@ static const char ATR[] = {
(0x94^0x11^0x81^0x31^0xFE^0x55^'F'^'S'^'I'^'J')
};
/*
* Send back error
*/
void
icc_error (int offset)
{
icc_tx_data[0] = ICC_SLOT_STATUS_RET; /* Any value should be OK */
icc_tx_data[1] = 0x00;
icc_tx_data[2] = 0x00;
icc_tx_data[3] = 0x00;
icc_tx_data[4] = 0x00;
icc_tx_data[5] = 0x00; /* Slot */
icc_tx_data[ICC_MSG_SEQ_OFFSET] = icc_seq;
if (icc_state == ICC_STATE_START)
/* 1: ICC present but not activated 2: No ICC present */
icc_tx_data[ICC_MSG_STATUS_OFFSET] = 1;
else
/* An ICC is present and active */
icc_tx_data[ICC_MSG_STATUS_OFFSET] = 0;
icc_tx_data[ICC_MSG_STATUS_OFFSET] |= ICC_CMD_STATUS_ERROR; /* Failed */
icc_tx_data[ICC_MSG_ERROR_OFFSET] = offset;
icc_tx_data[ICC_MSG_CHAIN_OFFSET] = 0x00;
if (!icc_tx_ready ())
{
DEBUG_INFO ("ERR0D\r\n");
}
else
{
icc_tx_size = ICC_MSG_HEADER_SIZE;
USB_SIL_Write (EP1_IN, icc_tx_data, icc_tx_size);
SetEPTxValid (ENDP1);
}
}
/* Send back ATR (Answer To Reset) */
enum icc_state
icc_power_on (void)
@@ -334,8 +375,9 @@ icc_handle_data (void)
else if (icc_header->msg_type == ICC_SLOT_STATUS)
icc_send_status ();
else
{ /* XXX: error */
{
DEBUG_INFO ("ERR01\r\n");
icc_error (ICC_OFFSET_CMD_NOT_SUPPORTED);
}
break;
case ICC_STATE_WAIT:
@@ -367,17 +409,18 @@ icc_handle_data (void)
next_state = ICC_STATE_RECEIVE;
}
else
{ /* XXX: error */;
{
DEBUG_INFO ("ERR02\r\n");
icc_error (ICC_OFFSET_PARAM);
}
}
else if (icc_header->msg_type == ICC_SET_PARAMS)
icc_send_params ();
else
{ /* XXX: error */
{
DEBUG_INFO ("ERR03\r\n");
DEBUG_BYTE (icc_header->msg_type);
next_state = ICC_STATE_START;
icc_error (ICC_OFFSET_CMD_NOT_SUPPORTED);
}
break;
case ICC_STATE_EXECUTE:
@@ -389,10 +432,10 @@ icc_handle_data (void)
else if (icc_header->msg_type == ICC_SLOT_STATUS)
icc_send_status ();
else
{ /* XXX: error */
{
DEBUG_INFO ("ERR04\r\n");
DEBUG_BYTE (icc_header->msg_type);
next_state = ICC_STATE_START;
icc_error (ICC_OFFSET_CMD_NOT_SUPPORTED);
}
break;
case ICC_STATE_RECEIVE:
@@ -418,8 +461,9 @@ icc_handle_data (void)
else if (icc_header->param == 3)
icc_send_data_block (0, 0, 0x10, NULL, 0);
else
{ /* XXX: error */
{
DEBUG_INFO ("ERR08\r\n");
icc_error (ICC_OFFSET_PARAM);
}
}
else /* Overrun */
@@ -430,10 +474,11 @@ icc_handle_data (void)
}
}
else
{ /* XXX: error */
{
DEBUG_INFO ("ERR05\r\n");
DEBUG_BYTE (icc_header->msg_type);
next_state = ICC_STATE_START;
icc_error (ICC_OFFSET_CMD_NOT_SUPPORTED);
next_state = ICC_STATE_WAIT;
}
break;
case ICC_STATE_SEND:
@@ -459,18 +504,20 @@ icc_handle_data (void)
}
}
else
{ /* XXX: error */
{
DEBUG_INFO ("ERR0A\r\n");
DEBUG_BYTE (icc_header->param >> 8);
DEBUG_BYTE (icc_header->param & 0xff);
icc_error (ICC_OFFSET_PARAM);
next_state = ICC_STATE_WAIT;
}
}
else
{ /* XXX: error */
{
DEBUG_INFO ("ERR06\r\n");
DEBUG_BYTE (icc_header->msg_type);
next_state = ICC_STATE_START;
icc_error (ICC_OFFSET_CMD_NOT_SUPPORTED);
next_state = ICC_STATE_WAIT;
}
break;
}