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scd: Handle CCID bwi of time extension.

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* scd/ccid-driver.c (bulk_in): Increase timeout by the multiplier
value as defined section 6.2.6 in CCID specification.

--

Backport master commit of:
	996c497a864d820af06333014b2c5f74d1054866

For TPDU level transfer, it was handled.  This is fix for APDU level
transfer.

GnuPG-bug-id: 4646
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2019-07-25 09:16:46 +09:00
parent f8961a576d
commit 879660bf45
1 changed files with 6 additions and 1 deletions
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7
scd/ccid-driver.c
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@ -1946,6 +1946,7 @@ bulk_in (ccid_driver_t handle, unsigned char *buffer, size_t length,
int rc;
int msglen;
int notified = 0;
int bwi = 1;
/* Fixme: The next line for the current Valgrind without support
for USB IOCTLs. */
@ -1956,7 +1957,7 @@ bulk_in (ccid_driver_t handle, unsigned char *buffer, size_t length,
npth_unprotect ();
#endif
rc = libusb_bulk_transfer (handle->idev, handle->ep_bulk_in,
(char*)buffer, length, &msglen, timeout);
buffer, length, &msglen, bwi*timeout);
#ifdef USE_NPTH
npth_protect ();
#endif
@ -2004,6 +2005,10 @@ bulk_in (ccid_driver_t handle, unsigned char *buffer, size_t length,
DEBUGOUT_2 ("time extension requested (%02X,%02X)\n",
buffer[7], buffer[8]);
bwi = 1;
if (buffer[8] != 0 && buffer[8] != 0xff)
bwi = buffer[8];
/* Gnuk enhancement to prompt user input by ack button */
if (buffer[8] == 0xff && !notified)
{