security-and-privacy/gnupg
security-and-privacy/gnupg
1
0
Fork 0
mirror of git://git.gnupg.org/gnupg.git synced 2025-01-03 12:11:33 +01:00
Code Activity

scd: Handle unexpected suspend/resume by CCID driver.

Browse Source 
* scd/ccid-driver.c (bulk_in): Handle unexpected failure.

--

GnuPG-bug-id: 3083
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2017-04-12 11:21:08 +09:00
parent bd0c94939f
commit f053f99ed0
1 changed files with 16 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
scd/ccid-driver.c
View File

@ -1980,7 +1980,7 @@ bulk_in (ccid_driver_t handle, unsigned char *buffer, size_t length,
goto retry; goto retry;
} }
if (buffer[0] != expected_type) if (buffer[0] != expected_type && buffer[0] != RDR_to_PC_SlotStatus)
{ {
DEBUGOUT_1 ("unexpected bulk-in msg type (%02x)\n", buffer[0]); DEBUGOUT_1 ("unexpected bulk-in msg type (%02x)\n", buffer[0]);
abort_cmd (handle, seqno); abort_cmd (handle, seqno);
@ -2020,11 +2020,23 @@ bulk_in (ccid_driver_t handle, unsigned char *buffer, size_t length,
switch ((buffer[7] & 0x03)) switch ((buffer[7] & 0x03))
{ {
case 0: /* no error */ break; case 0: /* no error */ break;
case 1: return CCID_DRIVER_ERR_CARD_INACTIVE; case 1: rc = CCID_DRIVER_ERR_CARD_INACTIVE; break;
case 2: return CCID_DRIVER_ERR_NO_CARD; case 2: rc = CCID_DRIVER_ERR_NO_CARD; break;
case 3: /* RFU */ break; case 3: /* RFU */ break;
} }
return 0;
if (rc)
{
/*
* Communication failure by device side.
* Possibly, it was forcibly suspended and resumed.
*/
DEBUGOUT ("CCID: card inactive/removed\n");
handle->powered_off = 1;
scd_kick_the_loop ();
}
return rc;
} }