/**
* Close a communication channel to the IFD.
*/
LONG IFDCloseIFD(PREADER_CONTEXT rContext)
{
RESPONSECODE rv = IFD_SUCCESS;
#ifndef PCSCLITE_STATIC_DRIVER
RESPONSECODE(*IO_close_channel) (void) = NULL;
RESPONSECODE(*IFDH_close_channel) (DWORD) = NULL;
if (rContext->dwVersion == IFD_HVERSION_1_0)
IO_close_channel = rContext->psFunctions.psFunctions_v1.pvfCloseChannel;
else
IFDH_close_channel = rContext->psFunctions.psFunctions_v2.pvfCloseChannel;
#endif
/* LOCK THIS CODE REGION */
(void)SYS_MutexLock(rContext->mMutex);
#ifndef PCSCLITE_STATIC_DRIVER
if (rContext->dwVersion == IFD_HVERSION_1_0)
rv = (*IO_close_channel) ();
else
rv = (*IFDH_close_channel) (rContext->dwSlot);
#else
if (rContext->dwVersion == IFD_HVERSION_1_0)
rv = IO_Close_Channel();
else
rv = IFDHCloseChannel(rContext->dwSlot);
#endif
/* END OF LOCKED REGION */
(void)SYS_MutexUnLock(rContext->mMutex);
return rv;
}
static void release_globals(void)
{
uint32_t index;
for (index = 0;
index < PCSCLITE_MAX_READERS_CONTEXTS && index < vicc_max_slots;
index++) {
IFDHCloseChannel ((DWORD) index);
}
memset(cards, 0, sizeof cards);
}
static void send_reply(smartcard_ccid_t *ccid, uint32_t code)
{
uint32_t reply[4];
reply[0] = htonl(VSC_Error); // type
reply[1] = htonl(ccid->lun); // reader id
reply[2] = htonl(sizeof(uint32_t)); // length
reply[3] = htonl(code); // Error code
if (write(ccid->fd, (char *) reply, sizeof(reply)) != sizeof(reply)) {
fprintf(stderr, "Error: lun %d fd %d write failed; errno %d\n", ccid->lun, ccid->fd, errno);
IFDHCloseChannel(ccid->lun);
}
}
/**
* Close a communication channel to the IFD.
*/
LONG IFDCloseIFD(PREADER_CONTEXT rContext)
{
RESPONSECODE rv = IFD_SUCCESS;
int repeat;
#ifndef PCSCLITE_STATIC_DRIVER
RESPONSECODE(*IO_close_channel) (void) = NULL;
RESPONSECODE(*IFDH_close_channel) (DWORD) = NULL;
if (rContext->dwVersion == IFD_HVERSION_1_0)
IO_close_channel = rContext->psFunctions.psFunctions_v1.pvfCloseChannel;
else
IFDH_close_channel = rContext->psFunctions.psFunctions_v2.pvfCloseChannel;
#endif
/* TRY TO LOCK THIS CODE REGION */
repeat = 5;
again:
rv = SYS_MutexTryLock(rContext->mMutex);
if (EBUSY == rv)
{
Log1(PCSC_LOG_ERROR, "Locking failed");
repeat--;
if (repeat)
{
(void)SYS_USleep(100*1000); /* 100 ms */
goto again;
}
}
#ifndef PCSCLITE_STATIC_DRIVER
if (rContext->dwVersion == IFD_HVERSION_1_0)
rv = (*IO_close_channel) ();
else
rv = (*IFDH_close_channel) (rContext->dwSlot);
#else
if (rContext->dwVersion == IFD_HVERSION_1_0)
rv = IO_Close_Channel();
else
rv = IFDHCloseChannel(rContext->dwSlot);
#endif
/* END OF LOCKED REGION */
(void)SYS_MutexUnLock(rContext->mMutex);
return rv;
}
static void send_init(smartcard_ccid_t *ccid)
{
uint32_t msg[6];
msg[0] = htonl(VSC_Init); // type
msg[1] = htonl(ccid->lun); // reader id
msg[2] = htonl(sizeof(uint32_t) * 3); // length
msg[3] = htonl(VSCARD_MAGIC); // VSCD
msg[4] = htonl(VSCARD_VERSION); // VSCD
msg[5] = 0; // capabilities
if (write(ccid->fd, (char *) msg, sizeof(msg)) != sizeof(msg)) {
fprintf(stderr, "Error: lun %d fd %d write failed; errno %d\n", ccid->lun, ccid->fd, errno);
IFDHCloseChannel(ccid->lun);
}
}
static int send_tx_buffer(smartcard_ccid_t *ccid, void *data, int len)
{
uint32_t *reply, *p;
int write_len = sizeof(*reply) * 3 + len;
reply = malloc(write_len);
p = reply;
*p++ = htonl(VSC_APDU); // type
*p++ = htonl(ccid->lun); // reader id
*p++ = htonl(len);
memcpy(p, data, len);
if (write(ccid->fd, (char *) reply, write_len) != write_len) {
fprintf(stderr, "Error: lun %d fd %d write failed; errno %d\n", ccid->lun, ccid->fd, errno);
IFDHCloseChannel(ccid->lun);
free(reply);
return 0;
}
free(reply);
return 1;
}
/**
* Close a communication channel to the IFD.
*/
LONG IFDCloseIFD(READER_CONTEXT * rContext)
{
RESPONSECODE rv;
int repeat;
#ifndef PCSCLITE_STATIC_DRIVER
RESPONSECODE(*IFDH_close_channel) (DWORD) = NULL;
IFDH_close_channel = rContext->psFunctions.psFunctions_v2.pvfCloseChannel;
#endif
/* TRY TO LOCK THIS CODE REGION */
repeat = 5;
again:
rv = pthread_mutex_trylock(rContext->mMutex);
if (EBUSY == rv)
{
Log1(PCSC_LOG_ERROR, "Locking failed");
repeat--;
if (repeat)
{
(void)SYS_USleep(100*1000); /* 100 ms */
goto again;
}
}
#ifndef PCSCLITE_STATIC_DRIVER
rv = (*IFDH_close_channel) (rContext->slot);
#else
rv = IFDHCloseChannel(rContext->slot);
#endif
/* END OF LOCKED REGION */
(void)pthread_mutex_unlock(rContext->mMutex);
return rv;
}
