Hello list,
pcsclite contains "testpcsc" which performs some tests.
If I run this tool, my connection to the smartcard
is lost and I need to restart firefox/thunderbird
in order to make it work again :(.
Is this the expected behaviour, that I need to restart
my applications after using "testpcsc" ?
Background
==========
I'm using a stateless pkcs11 smartcard driver which
I installed in thunderbird and firefox.
Reading encrypted mails, surfing with certificates
works fine.
thunderbird/firefox perform their actions on the smartcard
over the statless driver, which locks the card during
the operations and then unlock it.
This is working fine.
Now I run "testpcsc" and during the time when
it issues:
- SCardReconnect
- SCardDisconnect
My connections in thunderbird/firefox are broken
until I restart these applications.
This does not happen when I use opensc drivers, because
they are not stateless and lock the card forever.
Running the "testpcsc" gives a "Sharing violation".
So my question ist:
Is this the correct behaviour, that SCardReconnect/SCardDisconnect
affect every application using the reader? (with stateless drivers)
I would assume, that these operations are only for this
session, but not for all running sessions, but I don't
know the pcsclite specification :-)
I have tested this behaviour with the current pcsc-lite-1.5.5 version,
because it mentions "SCardReconnect" in the changelog.
But it has the same behaviour as the previous release, I need
to restart thunderbird/firefox after "testpcsc"
regards,
Martin
PS: my previous mail did not make it to the list, which conatins
a patch. Here is the patch again:
--- pcsc-lite-1.5.5.org/src/testpcsc.c 2009-07-21 18:54:06.000000000 +0200
+++ pcsc-lite-1.5.5/src/testpcsc.c 2009-12-14 15:29:03.000000000 +0100
@@ -18,6 +18,9 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#endif
#include "pcsclite.h"
#include "winscard.h"
@@ -45,13 +48,24 @@
{
printf(RED "%s\n" NORMAL, pcsc_stringify_error(rv));
(void)SCardReleaseContext(hContext);
- exit(-1);
+ /* error codes are 4byte even if paramter is long */
+ exit(rv);
}
}
else
(void)puts(pcsc_stringify_error(rv));
}
+void usage() {
+ printf("testpcsc performs basic tests on the card reader and smartcard\n");
+ printf("Usage: testpcsc [-t <timeout>] -h\n");
+ printf("\n");
+ printf(" -h : this text\n");
+ printf(" -t : timout for operations in sec. default 0 - waits forever\n");
+ printf("\n");
+}
+
+
int main(/*...@unused@*/ int argc, /*...@unused@*/ char **argv)
{
SCARDHANDLE hCard;
@@ -84,7 +98,26 @@
unsigned char bSendBuffer[MAX_BUFFER_SIZE];
unsigned char bRecvBuffer[MAX_BUFFER_SIZE];
DWORD send_length, length;
-
+ int timeout;
+ int opt;
+ timeout=INFINITE; /* zero */
+#ifdef HAVE_GETOPT_LONG
+ while ((opt = getopt (argc, argv, "ht:")) != -1) {
+
+ switch (opt) {
+ case 't':
+ timeout=atoi(optarg)*1000;
+ break;
+ case 'h':
+ usage();
+ exit(0);
+ default:
+ printf ("?? getopt returned character code 0%o ??\n", opt);
+ usage();
+ exit(-1);
+ }
+ }
+#endif
(void)argc;
(void)argv;
@@ -151,7 +184,7 @@
rgReaderStates[0].szReader = "\\\\?PnP?\\Notification";
rgReaderStates[0].dwCurrentState = SCARD_STATE_EMPTY;
- rv = SCardGetStatusChange(hContext, INFINITE, rgReaderStates, 1);
+ rv = SCardGetStatusChange(hContext, timeout, rgReaderStates, 1);
test_rv(rv, hContext, PANIC);
}
@@ -202,7 +235,7 @@
printf("Waiting for card insertion\t: ");
(void)fflush(stdout);
- rv = SCardGetStatusChange(hContext, INFINITE, rgReaderStates, 1);
+ rv = SCardGetStatusChange(hContext, timeout, rgReaderStates, 1);
test_rv(rv, hContext, PANIC);
if (rgReaderStates[0].dwEventState & SCARD_STATE_UNKNOWN)
{
@@ -390,9 +423,10 @@
(void)SCardDisconnect(hCard, SCARD_RESET_CARD);
(void)SCardReleaseContext(hContext);
}
-
- printf("Press enter: ");
- (void)getchar();
+ if (timeout == INFINITE) {
+ printf("Press enter: ");
+ (void)getchar();
+ }
printf("Testing SCardReconnect\t\t: ");
rv = SCardReconnect(hCard, SCARD_SHARE_SHARED,
SCARD_PROTOCOL_T0 | SCARD_PROTOCOL_T1, SCARD_UNPOWER_CARD, &dwPref);
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