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#endif
#ifdef HAVE_LIMITS_H
#  include <limits.h>
#endif
#ifdef HAVE_STDIO_H
#  include <stdio.h>
#endif




#ifdef HAVE_ZLIB_H
#  ifdef HAVE_LIBZ
#    include <zlib.h>
#  endif
#else
#  ifdef HAVE_LIBZ
#    undef HAVE_LIBZ
#  endif



#endif

#define CK_PTR *
#define CK_DEFINE_FUNCTION(returnType, name) returnType name
#define CK_DECLARE_FUNCTION(returnType, name) returnType name
#define CK_DECLARE_FUNCTION_POINTER(returnType, name) returnType (* name)
#define CK_CALLBACK_FUNCTION(returnType, name) returnType (* name)
................................................................................

#include "pkcs11.h"
#include "pkcs11n.h"
#include "asn1-x509.h"
#include "sha1.h"
#include "md5.h"

/*
 * Include these source files in this translation unit so that we can bind to
 * functions and not include any symbols in the output shared object.
 */
#include "asn1-x509.c"
#include "sha1.c"
#include "md5.c"

#ifndef CACKEY_CRYPTOKI_VERSION_CODE
#  define CACKEY_CRYPTOKI_VERSION_CODE 0x021e00
#endif

/* GSC-IS v2.1 Definitions */
/** Classes **/
#define GSCIS_CLASS_ISO7816           0x00
................................................................................
#define GSCIS_TAG_SERNO               0x51
#define GSCIS_TAG_ISSUE_DATE          0x52
#define GSCIS_TAG_EXPIRE_DATE         0x53
#define GSCIS_TAG_CARD_TYPE           0x54
#define GSCIS_TAG_SECURITY_CODE       0x57
#define GSCIS_TAG_CARDID_AID          0x58





/*** PKI Information - EF 7000 ***/
#define GSCIS_TAG_CERTIFICATE         0x70
#define GSCIS_TAG_CERT_ISSUE_DATE     0x71
#define GSCIS_TAG_CERT_EXPIRE_DATE    0x72

/** Applet IDs **/
#define GSCIS_AID_CCC                 0xA0, 0x00, 0x00, 0x01, 0x16, 0xDB, 0x00



















/* Maximum size of data portion of APDUs */
/** Do not set this above 250 **/
#define CACKEY_APDU_MTU               250

/* ATR If not available */
#ifndef MAX_ATR_SIZE
................................................................................
#define MAX_ATR_SIZE 1024
#endif

#ifdef CACKEY_DEBUG
#  ifdef HAVE_TIME_H
#    include <time.h>
static time_t cackey_debug_start_time = 0;
#    define CACKEY_DEBUG_PRINTTIME { if (cackey_debug_start_time == 0) { cackey_debug_start_time = time(NULL); }; fprintf(cackey_debug_fd(), "[%lu]: ", (unsigned long) (time(NULL) - cackey_debug_start_time)); }






#  else
#    define CACKEY_DEBUG_PRINTTIME /**/



#  endif

#  define CACKEY_DEBUG_PRINTF(x...) { CACKEY_DEBUG_PRINTTIME; fprintf(cackey_debug_fd(), "%s():%i: ", __func__, __LINE__); fprintf(cackey_debug_fd(), x); fprintf(cackey_debug_fd(), "\n"); fflush(cackey_debug_fd()); }
#  define CACKEY_DEBUG_PRINTBUF(f, x, y) { unsigned char *TMPBUF; unsigned long idx; TMPBUF = (unsigned char *) (x); CACKEY_DEBUG_PRINTTIME; fprintf(cackey_debug_fd(), "%s():%i: %s  (%s/%lu = {%02x", __func__, __LINE__, f, #x, (unsigned long) (y), TMPBUF[0]); for (idx = 1; idx < (y); idx++) { fprintf(cackey_debug_fd(), ", %02x", TMPBUF[idx]); }; fprintf(cackey_debug_fd(), "})\n"); fflush(cackey_debug_fd()); }
#  define CACKEY_DEBUG_PERROR(x) { fprintf(cackey_debug_fd(), "%s():%i: ", __func__, __LINE__); CACKEY_DEBUG_PRINTTIME; perror(x); fflush(cackey_debug_fd()); }
































#  define free(x) { CACKEY_DEBUG_PRINTF("FREE(%p) (%s)", (void *) x, #x); free(x); }

static FILE *cackey_debug_fd(void) {
	static FILE *fd = NULL;
	char *logfile;

	if (fd != NULL) {
................................................................................
		logfile = strchr(logfile, '=');
		if (logfile == NULL) {
			logfile = getenv("CACKEY_DEBUG_LOGFILE");
		} else {
			logfile++;
		}
	}







	if (logfile != NULL) {
		CACKEY_DEBUG_PRINTF("Found log file: %s", logfile);

		fd = fopen(logfile, "a");
	}

................................................................................
}

static void *CACKEY_DEBUG_FUNC_MALLOC(size_t size, const char *func, int line) {
	void *retval;

	retval = malloc(size);

	CACKEY_DEBUG_PRINTTIME;
	fprintf(cackey_debug_fd(), "%s():%i: ", func, line);
	fprintf(cackey_debug_fd(), "MALLOC() = %p", retval);
	fprintf(cackey_debug_fd(), "\n");
	fflush(cackey_debug_fd());

	return(retval);
}

static void *CACKEY_DEBUG_FUNC_REALLOC(void *ptr, size_t size, const char *func, int line) {
	void *retval;

	retval = realloc(ptr, size);

	if (retval != ptr) {
		CACKEY_DEBUG_PRINTTIME;
		fprintf(cackey_debug_fd(), "%s():%i: ", func, line);
		fprintf(cackey_debug_fd(), "REALLOC(%p) = %p", ptr, retval);
		fprintf(cackey_debug_fd(), "\n");
		fflush(cackey_debug_fd());
	}

	if (retval == NULL) {
		CACKEY_DEBUG_PRINTF(" *** ERROR *** realloc returned NULL (size = %lu)", (unsigned long) size);
	}

................................................................................
}

static char *CACKEY_DEBUG_FUNC_STRDUP(const char *ptr, const char *func, int line) {
	char *retval;

	retval = strdup(ptr);

	CACKEY_DEBUG_PRINTTIME;
	fprintf(cackey_debug_fd(), "%s():%i: ", func, line);
	fprintf(cackey_debug_fd(), "STRDUP_MALLOC() = %p", retval);
	fprintf(cackey_debug_fd(), "\n");
	fflush(cackey_debug_fd());

	return(retval);
}

static const char *CACKEY_DEBUG_FUNC_TAG_TO_STR(unsigned char tag) {
	switch (tag) {
................................................................................
#  ifdef strdup
#    undef strdup
#  endif
#  define strdup(x) CACKEY_DEBUG_FUNC_STRDUP(x, __func__, __LINE__)
#else
#  define CACKEY_DEBUG_PRINTF(x...) /**/
#  define CACKEY_DEBUG_PRINTBUF(f, x, y) /**/
#  define CACKEY_DEBUG_PERROR(x) /**/
#  define CACKEY_DEBUG_FUNC_TAG_TO_STR(x) "DEBUG_DISABLED"
#  define CACKEY_DEBUG_FUNC_SCARDERR_TO_STR(x) "DEBUG_DISABLED"
#  define CACKEY_DEBUG_FUNC_OBJID_TO_STR(x) "DEBUG_DISABLED"
#  define CACKEY_DEBUG_FUNC_APPTYPE_TO_STR(x) "DEBUG_DISABLED"
#  define CACKEY_DEBUG_FUNC_ATTRIBUTE_TO_STR(x) "DEBUG_DISABLED"
#endif















struct cackey_pcsc_identity {
	unsigned char applet[7];
	uint16_t file;


	size_t certificate_len;
	unsigned char *certificate;

	ssize_t keysize;












};

struct cackey_identity {
	struct cackey_pcsc_identity *pcsc_identity;

	CK_ATTRIBUTE *attributes;
	CK_ULONG attributes_count;
................................................................................
	CK_VOID_PTR decrypt_mech_parm;
	CK_ULONG decrypt_mech_parmlen;
	struct cackey_identity *decrypt_identity;
};

struct cackey_slot {
	int active;


	char *pcsc_reader;

	int pcsc_card_connected;
	SCARDHANDLE pcsc_card;

	int transaction_depth;
................................................................................
	int slot_reset;

	CK_FLAGS token_flags;

	unsigned char *label;

	DWORD protocol;



};

typedef enum {
	CACKEY_TLV_APP_GENERIC = 0x01,
	CACKEY_TLV_APP_SKI     = 0x02,
	CACKEY_TLV_APP_PKI     = 0x04
} cackey_tlv_apptype;
................................................................................
CK_C_INITIALIZE_ARGS cackey_args;

/** Extra certificates to include in token **/
struct cackey_pcsc_identity extra_certs[] = {
#include "cackey_builtin_certs.h"
};






/* PCSC Global Handles */
static LPSCARDCONTEXT cackey_pcsc_handle = NULL;

static unsigned long cackey_getversion(void) {
	static unsigned long retval = 255;
	unsigned long major = 0;
	unsigned long minor = 0;
................................................................................
 */
static void cackey_slots_disconnect_all(void) {
	uint32_t idx;

	CACKEY_DEBUG_PRINTF("Called.");

	for (idx = 0; idx < (sizeof(cackey_slots) / sizeof(cackey_slots[0])); idx++) {





		if (cackey_slots[idx].pcsc_card_connected) {
			CACKEY_DEBUG_PRINTF("SCardDisconnect(%lu) called", (unsigned long) idx);

			SCardDisconnect(cackey_slots[idx].pcsc_card, SCARD_LEAVE_CARD);
		}

		if (cackey_slots[idx].label) {
................................................................................
	if (slot->pcsc_card_connected) {
		SCardDisconnect(slot->pcsc_card, SCARD_LEAVE_CARD);
	}

	slot->slot_reset = 1;
	slot->pcsc_card_connected = 0;
	slot->token_flags = 0;





	if (login_required == -1) {
		if (cackey_login_required(slot) != CACKEY_PCSC_S_OK) {
			login_required = 1;
		} else {
			login_required = 0;
		}
................................................................................
	CACKEY_DEBUG_PRINTF("Returning.");

	return;
}

/*
 * SYNPOSIS
 *     LONG cackey_reconnect_card(struct cackey_slot *slot, DWORD default_protocol, LPDWORD selected_protocol);
 *
 * ARGUMENTS
 *     cackey_slot *slot
 *         Slot to send commands to
 *
 *     DWORD default_protocol
 *         Protocol to attempt first
 *
 *     LPDWORD selected_protocol
 *         [OUT] Protocol selected
 *
 * RETURN VALUE
 *     The return value from SCardReconnect()
 *
 * NOTES
 *     This function is a wrapper around SCardReconnect()
 *
 *     The SCardReconnect() function call will be called first with the
 *     dwPreferredProtocols of "default_protocol".  If that call returns
 *     SCARD_E_PROTO_MISMATCH try again with a protocol of T=0, and failing
 *     that T=1.
 *
 */
static LONG cackey_reconnect_card(struct cackey_slot *slot, DWORD default_protocol, LPDWORD selected_protocol) {

	LONG scard_conn_ret;



	scard_conn_ret = SCardReconnect(slot->pcsc_card, SCARD_SHARE_SHARED, default_protocol, SCARD_RESET_CARD, selected_protocol);

	if (scard_conn_ret == SCARD_E_PROTO_MISMATCH) {
		CACKEY_DEBUG_PRINTF("SCardReconnect() returned SCARD_E_PROTO_MISMATCH, trying with just T=0")
		scard_conn_ret = SCardReconnect(slot->pcsc_card, SCARD_SHARE_SHARED, SCARD_PROTOCOL_T0, SCARD_RESET_CARD, selected_protocol);

		if (scard_conn_ret == SCARD_E_PROTO_MISMATCH) {
			CACKEY_DEBUG_PRINTF("SCardReconnect() returned SCARD_E_PROTO_MISMATCH, trying with just T=1")
			scard_conn_ret = SCardReconnect(slot->pcsc_card, SCARD_SHARE_SHARED, SCARD_PROTOCOL_T1, SCARD_RESET_CARD, selected_protocol);
		}
	}





	return(scard_conn_ret);
}

/*
 * SYNPOSIS
 *     cackey_ret cackey_connect_card(struct cackey_slot *slot);
................................................................................
		CACKEY_DEBUG_PRINTF("Connection to PC/SC failed, returning in failure");

		return(CACKEY_PCSC_E_GENERIC);
	}

	/* Connect to reader, if needed */
	if (!slot->pcsc_card_connected) {
		CACKEY_DEBUG_PRINTF("SCardConnect(%s) called", slot->pcsc_reader);
		scard_conn_ret = SCardConnect(*cackey_pcsc_handle, slot->pcsc_reader, SCARD_SHARE_SHARED, SCARD_PROTOCOL_T0 | SCARD_PROTOCOL_T1, &slot->pcsc_card, &protocol);

		if (scard_conn_ret == SCARD_E_PROTO_MISMATCH) {
			CACKEY_DEBUG_PRINTF("SCardConnect() returned SCARD_E_PROTO_MISMATCH, trying with just T=0")
			scard_conn_ret = SCardConnect(*cackey_pcsc_handle, slot->pcsc_reader, SCARD_SHARE_SHARED, SCARD_PROTOCOL_T0, &slot->pcsc_card, &protocol);

			if (scard_conn_ret == SCARD_E_PROTO_MISMATCH) {
................................................................................

				if (scard_conn_ret == SCARD_E_PROTO_MISMATCH) {
					CACKEY_DEBUG_PRINTF("SCardConnect() returned SCARD_E_PROTO_MISMATCH, trying with just T=1")
					scard_conn_ret = SCardConnect(*cackey_pcsc_handle, slot->pcsc_reader, SCARD_SHARE_SHARED, SCARD_PROTOCOL_T1, &slot->pcsc_card, &protocol);
				}
			}

			scard_conn_ret = cackey_reconnect_card(slot, protocol, &protocol);
		}

		if (scard_conn_ret != SCARD_S_SUCCESS) {
			CACKEY_DEBUG_PRINTF("Connection to card failed, returning in failure (SCardConnect() = %s/%li)", CACKEY_DEBUG_FUNC_SCARDERR_TO_STR(scard_conn_ret), (long) scard_conn_ret);

			return(CACKEY_PCSC_E_GENERIC);
		}

		slot->pcsc_card_connected = 1;
		slot->transaction_depth = 0;
		slot->transaction_need_hw_lock = 0;
		slot->protocol = protocol;
	}



	return(CACKEY_PCSC_S_OK);
}

/*
 * SYNPOSIS
 *     cackey_ret cackey_begin_transaction(struct cackey_slot *slot);
................................................................................
 *     cackey_pcsc_connect() if needed.
 *
 *     It will connect to the card in the reader attached to the slot
 *     specified.  It will reconnect to the card if the connection
 *     goes away.
 *
 */
static cackey_ret cackey_send_apdu(struct cackey_slot *slot, unsigned char class, unsigned char instruction, unsigned char p1, unsigned char p2, unsigned char lc, unsigned char *data, unsigned char le, uint16_t *respcode, unsigned char *respdata, size_t *respdata_len) {
	uint8_t major_rc, minor_rc;
	size_t bytes_to_copy, tmp_respdata_len;
	LPCSCARD_IO_REQUEST pioSendPci;
	DWORD protocol;
	DWORD xmit_len, recv_len;
	LONG scard_xmit_ret, scard_reconn_ret;
	BYTE xmit_buf[1024], recv_buf[1024];
	int pcsc_connect_ret, pcsc_getresp_ret;
	int idx;

	CACKEY_DEBUG_PRINTF("Called.");
................................................................................

		return(CACKEY_PCSC_E_GENERIC);
	}

	/* Determine which protocol to send using */
	switch (slot->protocol) {
		case SCARD_PROTOCOL_T0:


			pioSendPci = SCARD_PCI_T0;

			break;
		case SCARD_PROTOCOL_T1:


			pioSendPci = SCARD_PCI_T1;

			break;
		default:
			CACKEY_DEBUG_PRINTF("Invalid protocol found, aborting.");

			return(CACKEY_PCSC_E_GENERIC);
................................................................................
	/* Transmit */
	xmit_len = 0;
	xmit_buf[xmit_len++] = class;
	xmit_buf[xmit_len++] = instruction;
	xmit_buf[xmit_len++] = p1;
	xmit_buf[xmit_len++] = p2;
	if (data) {







		xmit_buf[xmit_len++] = lc;

		for (idx = 0; idx < lc; idx++) {
			xmit_buf[xmit_len++] = data[idx];
		}
	}

	if (le != 0x00) {









		xmit_buf[xmit_len++] = le;

	}

	/* Begin Smartcard Transaction */
	cackey_begin_transaction(slot);

	if (class == GSCIS_CLASS_ISO7816 && instruction == GSCIS_INSTR_VERIFY && p1 == 0x00 && p2 == 0x00) {
		CACKEY_DEBUG_PRINTF("Sending APDU: <<censored>>");
	} else {
		CACKEY_DEBUG_PRINTBUF("Sending APDU:", xmit_buf, xmit_len);
	}

	recv_len = sizeof(recv_buf);
	scard_xmit_ret = SCardTransmit(slot->pcsc_card, pioSendPci, xmit_buf, xmit_len, NULL, recv_buf, &recv_len);
................................................................................

	if (scard_xmit_ret == SCARD_E_NOT_TRANSACTED) {
		CACKEY_DEBUG_PRINTF("Failed to send APDU to card (SCardTransmit() = %s/%lx), will ask calling function to retry (not resetting card)...", CACKEY_DEBUG_FUNC_SCARDERR_TO_STR(scard_xmit_ret), (unsigned long) scard_xmit_ret);

		/* Begin Smartcard Transaction */
		cackey_end_transaction(slot);



		return(CACKEY_PCSC_E_RETRY);
	}

	if (scard_xmit_ret != SCARD_S_SUCCESS) {
		CACKEY_DEBUG_PRINTF("Failed to send APDU to card (SCardTransmit() = %s/%lx)", CACKEY_DEBUG_FUNC_SCARDERR_TO_STR(scard_xmit_ret), (unsigned long) scard_xmit_ret);

		CACKEY_DEBUG_PRINTF("Marking slot as having been reset");
		cackey_mark_slot_reset(slot);

		if (scard_xmit_ret == SCARD_W_RESET_CARD) {
			CACKEY_DEBUG_PRINTF("Reset required, please hold...");

			scard_reconn_ret = cackey_reconnect_card(slot, SCARD_PROTOCOL_T0 | SCARD_PROTOCOL_T1, &protocol);

			if (scard_reconn_ret == SCARD_S_SUCCESS) {
				/* Update protocol */
				slot->protocol = protocol;
				switch (slot->protocol) {
					case SCARD_PROTOCOL_T0:
						pioSendPci = SCARD_PCI_T0;

						break;
					case SCARD_PROTOCOL_T1:
						pioSendPci = SCARD_PCI_T1;
................................................................................
	}


	CACKEY_DEBUG_PRINTF("APDU Returned an error, returning in failure");

	return(CACKEY_PCSC_E_GENERIC);
}


















































































































































































/*
 * SYNPOSIS
 *     ssize_t cackey_read_buffer(struct cackey_slot *slot, unsigned char *buffer, size_t count, unsigned char t_or_v, size_t initial_offset);
 *
 * ARGUMENTS
 *     struct cackey_slot *slot
................................................................................

	if (free_start) {
		free(start);
	}

	return;
}





































/*
 * SYNPOSIS
 *     ...
 *
 * ARGUMENTS
 *     ...
................................................................................
 * NOTES
 *     ...
 *
 */
static struct cackey_pcsc_identity *cackey_read_certs(struct cackey_slot *slot, struct cackey_pcsc_identity *certs, unsigned long *count) {
	struct cackey_pcsc_identity *curr_id;
	struct cackey_tlv_entity *ccc_tlv, *ccc_curr, *app_tlv, *app_curr;
	unsigned char ccc_aid[] = {GSCIS_AID_CCC};

	unsigned char curr_aid[7];

	unsigned long outidx = 0;

	cackey_ret transaction_ret;


	int certs_resizable;
	int send_ret, select_ret;







	CACKEY_DEBUG_PRINTF("Called.");

	if (count == NULL) {
		CACKEY_DEBUG_PRINTF("count is NULL, returning in failure");

		return(NULL);
................................................................................
	if (certs != NULL) {
		if (*count == 0) {
			CACKEY_DEBUG_PRINTF("Requested we return 0 objects, short-circuit");

			return(certs);
		}
	}
























	/* Begin a SmartCard transaction */
	transaction_ret = cackey_begin_transaction(slot);
	if (transaction_ret != CACKEY_PCSC_S_OK) {
		CACKEY_DEBUG_PRINTF("Unable begin transaction, returning in failure");

		return(NULL);
................................................................................
	} else {
		certs_resizable = 0;
	}

	/* Select the CCC Applet */
	send_ret = cackey_select_applet(slot, ccc_aid, sizeof(ccc_aid));
	if (send_ret != CACKEY_PCSC_S_OK) {







		CACKEY_DEBUG_PRINTF("Unable to select CCC Applet, returning in failure");

		/* Terminate SmartCard Transaction */
		cackey_end_transaction(slot);

		return(NULL);
	}






































































































	/* Read all the applets from the CCC's TLV */
	ccc_tlv = cackey_read_tlv(slot);

	/* Look for CARDURLs that coorespond to PKI applets */
	for (ccc_curr = ccc_tlv; ccc_curr; ccc_curr = ccc_curr->_next) {
		CACKEY_DEBUG_PRINTF("Found tag: %s ... ", CACKEY_DEBUG_FUNC_TAG_TO_STR(ccc_curr->tag));

		if (ccc_curr->tag != GSCIS_TAG_CARDURL) {
			CACKEY_DEBUG_PRINTF("  ... skipping it (we only care about CARDURLs)");

			continue;
		}

		if ((ccc_curr->value_cardurl->apptype & CACKEY_TLV_APP_PKI) != CACKEY_TLV_APP_PKI) {
			CACKEY_DEBUG_PRINTF("  ... skipping it (we only care about PKI applets, this applet supports: %s/%02x)", CACKEY_DEBUG_FUNC_APPTYPE_TO_STR(ccc_curr->value_cardurl->apptype), (unsigned int) ccc_curr->value_cardurl->apptype);

			continue;
		}

		CACKEY_DEBUG_PRINTBUF("RID:", ccc_curr->value_cardurl->rid, sizeof(ccc_curr->value_cardurl->rid));
		CACKEY_DEBUG_PRINTF("AppID = %s/%04lx", CACKEY_DEBUG_FUNC_OBJID_TO_STR(ccc_curr->value_cardurl->appid), (unsigned long) ccc_curr->value_cardurl->appid);
		CACKEY_DEBUG_PRINTF("ObjectID = %s/%04lx", CACKEY_DEBUG_FUNC_OBJID_TO_STR(ccc_curr->value_cardurl->objectid), (unsigned long) ccc_curr->value_cardurl->objectid);

		memcpy(curr_aid, ccc_curr->value_cardurl->rid, sizeof(ccc_curr->value_cardurl->rid));
		curr_aid[sizeof(curr_aid) - 2] = (ccc_curr->value_cardurl->appid >> 8) & 0xff;
		curr_aid[sizeof(curr_aid) - 1] = ccc_curr->value_cardurl->appid & 0xff;

		/* Select found applet ... */
		select_ret = cackey_select_applet(slot, curr_aid, sizeof(curr_aid));
		if (select_ret != CACKEY_PCSC_S_OK) {
			CACKEY_DEBUG_PRINTF("Failed to select applet, skipping processing of this object");

			continue;
		}

		/* ... and object (file) */
		select_ret = cackey_select_file(slot, ccc_curr->value_cardurl->objectid);
		if (select_ret != CACKEY_PCSC_S_OK) {
			CACKEY_DEBUG_PRINTF("Failed to select file, skipping processing of this object");

			continue;
		}

		/* Process this file's TLV looking for certificates */
		app_tlv = cackey_read_tlv(slot);

		for (app_curr = app_tlv; app_curr; app_curr = app_curr->_next) {
			CACKEY_DEBUG_PRINTF("Found tag: %s", CACKEY_DEBUG_FUNC_TAG_TO_STR(app_curr->tag));
			if (app_curr->tag != GSCIS_TAG_CERTIFICATE) {
				CACKEY_DEBUG_PRINTF("  ... skipping it (we only care about CERTIFICATEs)");

				continue;
			}

			curr_id = &certs[outidx];
			outidx++;


			memcpy(curr_id->applet, curr_aid, sizeof(curr_id->applet));
			curr_id->file = ccc_curr->value_cardurl->objectid;
			curr_id->keysize = -1;

			CACKEY_DEBUG_PRINTF("Filling curr_id->applet (%p) with %lu bytes:", curr_id->applet, (unsigned long) sizeof(curr_id->applet));

			CACKEY_DEBUG_PRINTBUF("VAL:", curr_id->applet, sizeof(curr_id->applet));

			curr_id->certificate_len = app_curr->length;

			curr_id->certificate = malloc(curr_id->certificate_len);
			memcpy(curr_id->certificate, app_curr->value, curr_id->certificate_len);

			if (outidx >= *count) {
				if (certs_resizable) {
					*count *= 2;

					certs = realloc(certs, sizeof(*certs) * (*count));
				} else {



					break;
				}







			}
		}

		cackey_free_tlv(app_tlv);

		if (outidx >= *count) {
			break;
		}
	}

	cackey_free_tlv(ccc_tlv);

	*count = outidx;

	if (certs_resizable) {

		certs = realloc(certs, sizeof(*certs) * (*count));


	}





	/* Terminate SmartCard Transaction */
	cackey_end_transaction(slot);

	return(certs);
}

................................................................................
 *     ...
 *
 * NOTES
 *     ...
 *
 */
static ssize_t cackey_signdecrypt(struct cackey_slot *slot, struct cackey_identity *identity, unsigned char *buf, size_t buflen, unsigned char *outbuf, size_t outbuflen, int padInput, int unpadOutput) {


	unsigned char *tmpbuf, *tmpbuf_s, *outbuf_s;
	unsigned char bytes_to_send, p1;
	unsigned char blocktype;
	cackey_ret send_ret;
	uint16_t respcode;
	ssize_t retval = 0, unpadoffset;
	size_t tmpbuflen, padlen, tmpoutbuflen;
	int free_tmpbuf = 0;
	int le;

	CACKEY_DEBUG_PRINTF("Called.");

	if (slot == NULL) {
		CACKEY_DEBUG_PRINTF("Error.  slot is NULL");
................................................................................
	}

	if (identity->pcsc_identity == NULL) {
		CACKEY_DEBUG_PRINTF("Error.  identity->pcsc_identity is NULL");

		return(-1);
	}


















	/* Determine identity Key size */
	if (identity->pcsc_identity->keysize < 0) {
		identity->pcsc_identity->keysize = x509_to_keysize(identity->pcsc_identity->certificate, identity->pcsc_identity->certificate_len);
	}

	/* Pad message to key size */
................................................................................
		padlen = 0;
	}

	/* Begin transaction */
	cackey_begin_transaction(slot);

	/* Select correct applet */


	CACKEY_DEBUG_PRINTF("Selecting applet found at %p ...", identity->pcsc_identity->applet);
	cackey_select_applet(slot, identity->pcsc_identity->applet, sizeof(identity->pcsc_identity->applet));

	/* Select correct file */
	cackey_select_file(slot, identity->pcsc_identity->file);






























	tmpbuf_s = tmpbuf;
	outbuf_s = outbuf;
	while (tmpbuflen) {


		if (tmpbuflen > 245) {


			bytes_to_send = 245;






			p1 = 0x80;
			le = 0x00;
		} else {
			bytes_to_send = tmpbuflen;
			p1 = 0x00;
			le = 0x00;
		}

		tmpoutbuflen = outbuflen;

		send_ret = cackey_send_apdu(slot, GSCIS_CLASS_GLOBAL_PLATFORM, GSCIS_INSTR_SIGNDECRYPT, p1, 0x00, bytes_to_send, tmpbuf, le, &respcode, outbuf, &tmpoutbuflen);
		if (send_ret != CACKEY_PCSC_S_OK) {
			CACKEY_DEBUG_PRINTF("ADPU Sending Failed -- returning in error.");

















			if (free_tmpbuf) {
				if (tmpbuf_s) {
					free(tmpbuf_s);
				}
			}

			/* End transaction */
			cackey_end_transaction(slot);










			if (respcode == 0x6982) {


				CACKEY_DEBUG_PRINTF("Security status not satisified.  Returning NEEDLOGIN");


				cackey_mark_slot_reset(slot);

				return(CACKEY_PCSC_E_NEEDLOGIN);
			}

			if (send_ret == CACKEY_PCSC_E_TOKENABSENT) {
................................................................................
	if (outbuflen > _POSIX_SSIZE_MAX) {
		CACKEY_DEBUG_PRINTF("Outbuflen exceeds maximum value, returning in failure. (max = %li, outbuflen = %lu)", (long) _POSIX_SSIZE_MAX, (unsigned long) outbuflen);

		return(-1);
	}
#  endif
#endif






























	/* Unpad reply */
	if (unpadOutput) {
		if (retval < 3) {
			CACKEY_DEBUG_PRINTF("Reply is too small, we are not able to unpad -- passing back and hoping for the best!");

			CACKEY_DEBUG_PRINTF("Returning in success, retval = %li (bytes)", (long) retval);
................................................................................
 *     ...
 *
 * NOTES
 *     ...
 *
 */
static cackey_ret cackey_login(struct cackey_slot *slot, unsigned char *pin, unsigned long pin_len, int *tries_remaining_p) {

	unsigned char cac_pin[8] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};

	uint16_t response_code;
	int tries_remaining;
	int send_ret;


	/* Indicate that we do not know about how many tries are remaining */
	if (tries_remaining_p) {
		*tries_remaining_p = -1;
	}

	/* Apparently, CAC PINs are *EXACTLY* 8 bytes long -- pad with 0xFF if too short */
	if (pin_len >= 8) {
		memcpy(cac_pin, pin, 8);
	} else {
		memcpy(cac_pin, pin, pin_len);
	}
























	/* Issue PIN Verify */
	send_ret = cackey_send_apdu(slot, GSCIS_CLASS_ISO7816, GSCIS_INSTR_VERIFY, 0x00, 0x00, sizeof(cac_pin), cac_pin, 0x00, &response_code, NULL, NULL);

	if (send_ret != CACKEY_PCSC_S_OK) {
		if ((response_code & 0x63C0) == 0x63C0) {
			tries_remaining = (response_code & 0xF);

			CACKEY_DEBUG_PRINTF("PIN Verification failed, %i tries remaining", tries_remaining);

			if (tries_remaining_p) {
................................................................................
 *
 * NOTES
 *     ...
 *
 */
static cackey_ret cackey_token_present(struct cackey_slot *slot) {
	cackey_ret pcsc_connect_ret;
	DWORD reader_len, state, protocol, atr_len;
	BYTE atr[MAX_ATR_SIZE];
	LONG status_ret, scard_reconn_ret;

	CACKEY_DEBUG_PRINTF("Called.");







	pcsc_connect_ret = cackey_connect_card(slot);
	if (pcsc_connect_ret != CACKEY_PCSC_S_OK) {
		CACKEY_DEBUG_PRINTF("Unable to connect to card, returning token absent");

		return(CACKEY_PCSC_E_TOKENABSENT);
	}



	atr_len = sizeof(atr);
	status_ret = SCardStatus(slot->pcsc_card, NULL, &reader_len, &state, &protocol, atr, &atr_len);

	if (status_ret == SCARD_E_INVALID_HANDLE) {
		CACKEY_DEBUG_PRINTF("SCardStatus() returned SCARD_E_INVALID_HANDLE, marking is not already connected and trying again");
		cackey_mark_slot_reset(slot);
................................................................................
		pcsc_connect_ret = cackey_connect_card(slot);
		if (pcsc_connect_ret != CACKEY_PCSC_S_OK) {
			CACKEY_DEBUG_PRINTF("Unable to connect to card, returning token absent");

			return(CACKEY_PCSC_E_TOKENABSENT);
		}



		atr_len = sizeof(atr);
		status_ret = SCardStatus(slot->pcsc_card, NULL, &reader_len, &state, &protocol, atr, &atr_len);
	}

	if (status_ret != SCARD_S_SUCCESS) {
		cackey_mark_slot_reset(slot);

		if (status_ret == SCARD_W_RESET_CARD) {
			CACKEY_DEBUG_PRINTF("Reset required, please hold...");

			scard_reconn_ret = cackey_reconnect_card(slot, SCARD_PROTOCOL_T0 | SCARD_PROTOCOL_T1, &protocol);
			if (scard_reconn_ret == SCARD_S_SUCCESS) {
				/* Update protocol */
				slot->protocol = protocol;

				/* Re-establish transaction, if it was present */
				if (slot->transaction_depth > 0) {
					slot->transaction_depth--;
					slot->transaction_need_hw_lock = 1;
					cackey_begin_transaction(slot);
				}

................................................................................

				CACKEY_DEBUG_PRINTF(" ... returning %lu (%p/%lu)", (unsigned long) *((CK_BBOOL *) pValue), pValue, (unsigned long) ulValueLen);

				break;
			case CKA_LABEL:
				CACKEY_DEBUG_PRINTF("Requesting attribute CKA_LABEL (0x%08lx) ...", (unsigned long) curr_attr_type);

				/* XXX: Determine name */



				ulValueLen = snprintf((char *) ucTmpBuf, sizeof(ucTmpBuf), "Identity #%lu", (unsigned long) identity_num);
				pValue = ucTmpBuf;

				if (ulValueLen >= sizeof(ucTmpBuf)) {
					ulValueLen = 0;
					pValue = NULL;

				}

				CACKEY_DEBUG_PRINTF(" ... returning (%p/%lu)", pValue, (unsigned long) ulValueLen);

				break;
			case CKA_VALUE:
				CACKEY_DEBUG_PRINTF("Requesting attribute CKA_VALUE (0x%08lx) ...", (unsigned long) curr_attr_type);
................................................................................

			cackey_free_certs(identities[id_idx].pcsc_identity, 1, 1);
		}
	}

	free(identities);
}

























static struct cackey_identity *cackey_read_identities(struct cackey_slot *slot, unsigned long *ids_found) {
	struct cackey_pcsc_identity *pcsc_identities;
	struct cackey_identity *identities;
	unsigned long num_ids, id_idx, curr_id_type;
	unsigned long num_certs, num_extra_certs, cert_idx;
	int include_extra_certs = 1;

	CACKEY_DEBUG_PRINTF("Called.");

	if (getenv("CACKEY_NO_EXTRA_CERTS") != NULL) {
		CACKEY_DEBUG_PRINTF("Asked not to include extra (DoD) certificates");





		include_extra_certs = 0;

	}





	if (include_extra_certs) {

















		num_extra_certs = sizeof(extra_certs) / sizeof(extra_certs[0]);



		CACKEY_DEBUG_PRINTF("Including %li DoD Certificates as objects on this token", num_extra_certs);








	} else {
		num_extra_certs = 0;

	}

	if (ids_found == NULL) {
		CACKEY_DEBUG_PRINTF("Error.  ids_found is NULL");

		return(NULL);
	}

	pcsc_identities = cackey_read_certs(slot, NULL, &num_certs);
	if (pcsc_identities != NULL) {
		/* Convert number of Certs to number of objects */
		num_ids = (CKO_PRIVATE_KEY - CKO_CERTIFICATE + 1) * num_certs;

		num_ids += num_extra_certs * 3;



		identities = malloc(num_ids * sizeof(*identities));

		/* Add certificates, public keys, and private keys from the smartcard */
		id_idx = 0;
		for (cert_idx = 0; cert_idx < num_certs; cert_idx++) {
			for (curr_id_type = CKO_CERTIFICATE; curr_id_type <= CKO_PRIVATE_KEY; curr_id_type++) {
................................................................................

				identities[id_idx].pcsc_identity->certificate = malloc(pcsc_identities[cert_idx].certificate_len);
				memcpy(identities[id_idx].pcsc_identity->certificate, pcsc_identities[cert_idx].certificate, pcsc_identities[cert_idx].certificate_len);

				id_idx++;
			}
		}







		cackey_free_certs(pcsc_identities, num_certs, 1);

		/* Add DoD Certificates and Netscape Trust Objects */
		for (cert_idx = 0; cert_idx < num_extra_certs; cert_idx++) {
			identities[id_idx].pcsc_identity = NULL;
			identities[id_idx].attributes = cackey_get_attributes(CKO_CERTIFICATE, &extra_certs[cert_idx], 0xf000 | cert_idx, &identities[id_idx].attributes_count);
			id_idx++;

			identities[id_idx].pcsc_identity = NULL;
			identities[id_idx].attributes = cackey_get_attributes(CKO_PUBLIC_KEY, &extra_certs[cert_idx], 0xf000 | cert_idx, &identities[id_idx].attributes_count);
			id_idx++;

			identities[id_idx].pcsc_identity = NULL;
			identities[id_idx].attributes = cackey_get_attributes(CKO_NETSCAPE_TRUST, &extra_certs[cert_idx], 0xf000 | cert_idx, &identities[id_idx].attributes_count);
			id_idx++;
		}

		*ids_found = num_ids;
		return(identities);
	}


	*ids_found = 0;
	return(NULL);
}

CK_DEFINE_FUNCTION(CK_RV, C_Initialize)(CK_VOID_PTR pInitArgs) {
	CK_C_INITIALIZE_ARGS CK_PTR args;
	uint32_t idx;
	int mutex_init_ret;


	CACKEY_DEBUG_PRINTF("Called.");

	if (cackey_initialized) {
		CACKEY_DEBUG_PRINTF("Error.  Already initialized.");

		return(CKR_CRYPTOKI_ALREADY_INITIALIZED);
................................................................................
		cackey_slots[idx].active = 0;
		cackey_slots[idx].pcsc_reader = NULL;
		cackey_slots[idx].transaction_depth = 0;
		cackey_slots[idx].transaction_need_hw_lock = 0;
		cackey_slots[idx].slot_reset = 0;
		cackey_slots[idx].token_flags = 0;
		cackey_slots[idx].label = NULL;





























	}

	cackey_initialized = 1;

	if (!cackey_biglock_init) {
		mutex_init_ret = cackey_mutex_create(&cackey_biglock);

................................................................................
			CACKEY_DEBUG_PRINTF("Error.  Mutex initialization failed.");

			return(CKR_CANT_LOCK);
		}

		cackey_biglock_init = 1;
	}




















	CACKEY_DEBUG_PRINTF("Returning CKR_OK (%i)", CKR_OK);

	return(CKR_OK);
}

CK_DEFINE_FUNCTION(CK_RV, C_Finalize)(CK_VOID_PTR pReserved) {
................................................................................
			C_CloseSession(idx);
		}
	}

	cackey_slots_disconnect_all();

	for (idx = 0; idx < (sizeof(cackey_slots) / sizeof(cackey_slots[0])); idx++) {




		if (cackey_slots[idx].pcsc_reader) {
			free(cackey_slots[idx].pcsc_reader);
		}






	}

	cackey_pcsc_disconnect();

	cackey_initialized = 0;

	CACKEY_DEBUG_PRINTF("Returning CKR_OK (%i)", CKR_OK);
................................................................................
	return(CKR_OK);
}

/*
 * Process list of readers, and create mapping between reader name and slot ID
 */
CK_DEFINE_FUNCTION(CK_RV, C_GetSlotList)(CK_BBOOL tokenPresent, CK_SLOT_ID_PTR pSlotList, CK_ULONG_PTR pulCount) {

	int mutex_retval;
	int pcsc_connect_ret;
	CK_ULONG count, slot_count = 0, currslot;
	char *pcsc_readers, *pcsc_readers_s, *pcsc_readers_e;
	DWORD pcsc_readers_len;
	LONG scard_listreaders_ret;
	size_t curr_reader_len;


	CACKEY_DEBUG_PRINTF("Called.");

	if (pulCount == NULL) {
		CACKEY_DEBUG_PRINTF("Error. pulCount is NULL.");

		return(CKR_ARGUMENTS_BAD);
................................................................................
	if (mutex_retval != 0) {
		CACKEY_DEBUG_PRINTF("Error.  Locking failed.");

		return(CKR_GENERAL_ERROR);
	}

	/* Clear list of slots */

	if (pSlotList) {
























		CACKEY_DEBUG_PRINTF("Purging all slot information.");

		/* Only update the list of slots if we are actually being supply the slot information */
		cackey_slots_disconnect_all();

		for (currslot = 0; currslot < (sizeof(cackey_slots) / sizeof(cackey_slots[0])); currslot++) {




			if (cackey_slots[currslot].pcsc_reader) {
				free(cackey_slots[currslot].pcsc_reader);

				cackey_slots[currslot].pcsc_reader = NULL;
			}

			if (cackey_slots[currslot].label) {
				free(cackey_slots[currslot].label);

				cackey_slots[currslot].label = NULL;
			}

			cackey_slots[currslot].active = 0;
		}

	}



	/* Determine list of readers */
	pcsc_connect_ret = cackey_pcsc_connect();

	if (pcsc_connect_ret != CACKEY_PCSC_S_OK) {
		CACKEY_DEBUG_PRINTF("Connection to PC/SC failed, assuming no slots");

		slot_count = 0;
	} else {
		pcsc_readers_len = 0;

................................................................................
			scard_listreaders_ret = SCardListReaders(*cackey_pcsc_handle, NULL, pcsc_readers, &pcsc_readers_len);
			if (scard_listreaders_ret == SCARD_S_SUCCESS) {
				pcsc_readers_e = pcsc_readers + pcsc_readers_len;

				/* Start with Slot ID 1, to avoid a bug in GDM on RHEL */
				/* Bug 594911: https://bugzilla.redhat.com/show_bug.cgi?id=594911 */
				currslot = 1;

				while (pcsc_readers < pcsc_readers_e) {







					curr_reader_len = strlen(pcsc_readers);

					if ((pcsc_readers + curr_reader_len) > pcsc_readers_e) {
						break;
					}

					if (curr_reader_len == 0) {
................................................................................

					if (currslot >= (sizeof(cackey_slots) / sizeof(cackey_slots[0]))) {
						CACKEY_DEBUG_PRINTF("Found more readers than slots are available!");

						break;
					}

					CACKEY_DEBUG_PRINTF("Found reader: %s", pcsc_readers);

					/* Only update the list of slots if we are actually being asked supply the slot information */
					if (pSlotList) {

						cackey_slots[currslot].active = 1;

						cackey_slots[currslot].pcsc_reader = strdup(pcsc_readers);
						cackey_slots[currslot].pcsc_card_connected = 0;
						cackey_slots[currslot].transaction_depth = 0;
						cackey_slots[currslot].transaction_need_hw_lock = 0;
						cackey_slots[currslot].token_flags = 0;
						cackey_slots[currslot].label = NULL;

						cackey_mark_slot_reset(&cackey_slots[currslot]);








					}
					currslot++;

					pcsc_readers += curr_reader_len + 1;
				}

				/* Start with Slot ID 1, to avoid a bug in GDM on RHEL */
				/* Bug 594911: https://bugzilla.redhat.com/show_bug.cgi?id=594911 */
				if (currslot > 1) {
					/* Start with Slot ID 1, to avoid a bug in GDM on RHEL */
					/* Bug 594911: https://bugzilla.redhat.com/show_bug.cgi?id=594911 */
					slot_count = currslot - 1;
				}
			} else {
				CACKEY_DEBUG_PRINTF("Second call to SCardListReaders failed, return %s/%li", CACKEY_DEBUG_FUNC_SCARDERR_TO_STR(scard_listreaders_ret), (long) scard_listreaders_ret);
			}

			free(pcsc_readers_s);
		} else {
................................................................................
		return(CKR_OK);
	}

	count = *pulCount;
	if (count < slot_count) {
		CACKEY_DEBUG_PRINTF("Error. User allocated %lu entries, but we have %lu entries.", count, slot_count);



		return(CKR_BUFFER_TOO_SMALL);	
	}

	for (currslot = 0; currslot < slot_count; currslot++) {
		/* Start with Slot ID 1, to avoid a bug in GDM on RHEL */
		/* Bug 594911: https://bugzilla.redhat.com/show_bug.cgi?id=594911 */


















		pSlotList[currslot] = currslot + 1;








	}

	*pulCount = slot_count;

	CACKEY_DEBUG_PRINTF("Returning CKR_OK (%i).  Found %lu readers.", CKR_OK, (unsigned long) slot_count);

	return(CKR_OK);
................................................................................
		CACKEY_DEBUG_PRINTF("Error. Invalid slot requested (%lu), slot not currently active", slotID);

		cackey_mutex_unlock(cackey_biglock);

		return(CKR_SLOT_ID_INVALID);
	}




	pInfo->flags = CKF_REMOVABLE_DEVICE | CKF_HW_SLOT;


	if (cackey_token_present(&cackey_slots[slotID]) == CACKEY_PCSC_S_TOKENPRESENT) {
		pInfo->flags |= CKF_TOKEN_PRESENT;
	}

	bytes_to_copy = strlen(cackey_slots[slotID].pcsc_reader);
	if (sizeof(pInfo->manufacturerID) < bytes_to_copy) {
................................................................................
	pInfo->hardwareVersion.major = (cackey_getversion() >> 16) & 0xff;
	pInfo->hardwareVersion.minor = (cackey_getversion() >> 8) & 0xff;

	pInfo->firmwareVersion.major = 0x00;
	pInfo->firmwareVersion.minor = 0x00;

	pInfo->flags = CKF_WRITE_PROTECTED | CKF_USER_PIN_INITIALIZED | CKF_TOKEN_INITIALIZED | cackey_slots[slotID].token_flags;





	pInfo->ulMaxSessionCount = (sizeof(cackey_sessions) / sizeof(cackey_sessions[0])) - 1;
	pInfo->ulSessionCount = CK_UNAVAILABLE_INFORMATION;
	pInfo->ulMaxRwSessionCount = 0;
	pInfo->ulRwSessionCount = CK_UNAVAILABLE_INFORMATION;
	pInfo->ulMaxPinLen = 128;
	pInfo->ulMinPinLen = 0;
................................................................................
	}

	CACKEY_DEBUG_PRINTF("Returning CKR_FUNCTION_NOT_SUPPORTED (%i)", CKR_FUNCTION_NOT_SUPPORTED);

	return(CKR_FUNCTION_NOT_SUPPORTED);
}

CK_DEFINE_FUNCTION(CK_RV, C_Login)(CK_SESSION_HANDLE hSession, CK_USER_TYPE userType, CK_UTF8CHAR_PTR pPin, CK_ULONG ulPinLen) {
	CK_SLOT_ID slotID;


	int mutex_retval;
	int tries_remaining;
	int login_ret;


	CACKEY_DEBUG_PRINTF("Called.");

	if (!cackey_initialized) {
		CACKEY_DEBUG_PRINTF("Error.  Not initialized.");

		return(CKR_CRYPTOKI_NOT_INITIALIZED);
................................................................................

	if (userType != CKU_USER) {
		CACKEY_DEBUG_PRINTF("Error.  We only support USER mode, asked for %lu mode.", (unsigned long) userType)

		return(CKR_USER_TYPE_INVALID);
	}


	mutex_retval = cackey_mutex_lock(cackey_biglock);
	if (mutex_retval != 0) {
		CACKEY_DEBUG_PRINTF("Error.  Locking failed.");

		return(CKR_GENERAL_ERROR);

	}

	if (!cackey_sessions[hSession].active) {

		cackey_mutex_unlock(cackey_biglock);


		CACKEY_DEBUG_PRINTF("Error.  Session not active.");
		
		return(CKR_SESSION_HANDLE_INVALID);
	}

	slotID = cackey_sessions[hSession].slotID;

	if (slotID < 0 || slotID >= (sizeof(cackey_slots) / sizeof(cackey_slots[0]))) {
		CACKEY_DEBUG_PRINTF("Error. Invalid slot requested (%lu), outside of valid range", slotID);





		return(CKR_GENERAL_ERROR);
	}

	if (cackey_slots[slotID].active == 0) {
		CACKEY_DEBUG_PRINTF("Error. Invalid slot requested (%lu), slot not currently active", slotID);


		cackey_mutex_unlock(cackey_biglock);


		return(CKR_GENERAL_ERROR);
	}


































































	login_ret = cackey_login(&cackey_slots[slotID], pPin, ulPinLen, &tries_remaining);
	if (login_ret != CACKEY_PCSC_S_OK) {

		cackey_mutex_unlock(cackey_biglock);


		if (login_ret == CACKEY_PCSC_E_LOCKED) {
			CACKEY_DEBUG_PRINTF("Error.  Token is locked.");

			cackey_slots[slotID].token_flags |= CKF_USER_PIN_LOCKED;



			return(CKR_PIN_LOCKED);
		} else if (login_ret == CACKEY_PCSC_E_BADPIN) {
			CACKEY_DEBUG_PRINTF("Error.  Invalid PIN.");

			cackey_slots[slotID].token_flags |= CKF_USER_PIN_COUNT_LOW;

			if (tries_remaining == 1) {
				cackey_slots[slotID].token_flags |= CKF_USER_PIN_FINAL_TRY;
			}



			return(CKR_PIN_INCORRECT);
		}

		CACKEY_DEBUG_PRINTF("Error.  Unknown error returned from cackey_login() (%i)", login_ret);

		return(CKR_GENERAL_ERROR);
	}

	cackey_slots[slotID].token_flags &= ~(CKF_USER_PIN_LOCKED | CKF_USER_PIN_COUNT_LOW | CKF_LOGIN_REQUIRED | CKF_USER_PIN_FINAL_TRY);

	cackey_sessions[hSession].state = CKS_RO_USER_FUNCTIONS;


	mutex_retval = cackey_mutex_unlock(cackey_biglock);
	if (mutex_retval != 0) {
		CACKEY_DEBUG_PRINTF("Error.  Unlocking failed.");

		return(CKR_GENERAL_ERROR);

	}

	CACKEY_DEBUG_PRINTF("Returning CKR_OK (%i)", CKR_OK);

	return(CKR_OK);
}





CK_DEFINE_FUNCTION(CK_RV, C_Logout)(CK_SESSION_HANDLE hSession) {
	CK_SLOT_ID slotID;
	int mutex_retval;

	CACKEY_DEBUG_PRINTF("Called.");

................................................................................

		cackey_mutex_unlock(cackey_biglock);

		return(CKR_GENERAL_ERROR);
	}

	cackey_sessions[hSession].state = CKS_RO_PUBLIC_SESSION;
	cackey_slots[slotID].token_flags = CKF_LOGIN_REQUIRED;

	mutex_retval = cackey_mutex_unlock(cackey_biglock);
	if (mutex_retval != 0) {
		CACKEY_DEBUG_PRINTF("Error.  Unlocking failed.");

		return(CKR_GENERAL_ERROR);
	}
................................................................................

CK_DEFINE_FUNCTION(CK_RV, C_FindObjects)(CK_SESSION_HANDLE hSession, CK_OBJECT_HANDLE_PTR phObject, CK_ULONG ulMaxObjectCount, CK_ULONG_PTR pulObjectCount) {
	struct cackey_identity *curr_id;
	CK_ATTRIBUTE *curr_attr;
	CK_ULONG curr_id_idx, curr_out_id_idx, curr_attr_idx, sess_attr_idx;
	CK_ULONG matched_count, prev_matched_count;
	int mutex_retval;





	CACKEY_DEBUG_PRINTF("Called.");

	if (!cackey_initialized) {
		CACKEY_DEBUG_PRINTF("Error.  Not initialized.");

		return(CKR_CRYPTOKI_NOT_INITIALIZED);
................................................................................
	if (!cackey_sessions[hSession].search_active) {
		cackey_mutex_unlock(cackey_biglock);

		CACKEY_DEBUG_PRINTF("Error.  Search not active.");
		
		return(CKR_OPERATION_NOT_INITIALIZED);
	}





	curr_out_id_idx = 0;
	for (curr_id_idx = cackey_sessions[hSession].search_curr_id; curr_id_idx < cackey_sessions[hSession].identities_count && ulMaxObjectCount; curr_id_idx++) {
		curr_id = &cackey_sessions[hSession].identities[curr_id_idx];

		CACKEY_DEBUG_PRINTF("Processing identity:%lu", (unsigned long) curr_id_idx);

................................................................................
			curr_out_id_idx++;
		} else {
			CACKEY_DEBUG_PRINTF("  ... Not all %i (only found %i) attributes checked for found, not adding identity:%i", (int) cackey_sessions[hSession].search_query_count, (int) matched_count, (int) curr_id_idx);
		}
	}
	cackey_sessions[hSession].search_curr_id = curr_id_idx;
	*pulObjectCount = curr_out_id_idx;








	mutex_retval = cackey_mutex_unlock(cackey_biglock);
	if (mutex_retval != 0) {
		CACKEY_DEBUG_PRINTF("Error.  Unlocking failed.");

		return(CKR_GENERAL_ERROR);
	}
................................................................................
		return(CKR_GENERAL_ERROR);
	}

	switch (cackey_sessions[hSession].decrypt_mechanism) {
		case CKM_RSA_PKCS:
			/* Ask card to decrypt */
			buflen = cackey_signdecrypt(&cackey_slots[slotID], cackey_sessions[hSession].decrypt_identity, pEncryptedPart, ulEncryptedPartLen, buf, sizeof(buf), 0, 1);







			if (buflen < 0) {
				/* Decryption failed. */
				if (buflen == CACKEY_PCSC_E_NEEDLOGIN) {
					retval = CKR_USER_NOT_LOGGED_IN;
				} else if (buflen == CACKEY_PCSC_E_TOKENABSENT) {
					retval = CKR_DEVICE_REMOVED;
				} else {


					retval = CKR_GENERAL_ERROR;
				}
			} else if (((unsigned long) buflen) > *pulPartLen && pPart) {
				/* Decrypted data too large */
				retval = CKR_BUFFER_TOO_SMALL;
			} else {
				if (pPart) {
................................................................................
	}

	switch (cackey_sessions[hSession].sign_mechanism) {
		case CKM_RSA_PKCS:
			/* Ask card to sign */
			CACKEY_DEBUG_PRINTF("Asking to sign from identity %p in session %lu", (void *) cackey_sessions[hSession].sign_identity, (unsigned long) hSession);
			sigbuflen = cackey_signdecrypt(&cackey_slots[slotID], cackey_sessions[hSession].sign_identity, cackey_sessions[hSession].sign_buf, cackey_sessions[hSession].sign_bufused, sigbuf, sizeof(sigbuf), 1, 0);







			if (sigbuflen < 0) {
				/* Signing failed. */
				if (sigbuflen == CACKEY_PCSC_E_NEEDLOGIN) {
					retval = CKR_USER_NOT_LOGGED_IN;
				} else if (sigbuflen == CACKEY_PCSC_E_TOKENABSENT) {
					retval = CKR_DEVICE_REMOVED;







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70
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....
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1586
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....
1741
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....
2395
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....
2449
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....
2482
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....
2525
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2710
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2740


2741




2742
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2755
2756
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2760
....
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
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2791
....
2812
2813
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....
2885
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2947
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2951


2952
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2986
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2988
2989
2990
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2994
2995
2996
2997
2998
....
3030
3031
3032
3033
3034
3035
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3037
3038
3039
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3043
3044
3045
3046
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3058
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3060
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3062
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3066
3067
3068
3069
3070
3071
3072
....
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
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3166
3167
3168
3169
3170
3171
3172
3173
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3182
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3189
3190
3191
3192
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3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
....
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
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3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
....
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299



3300
3301
3302
3303
3304
3305
3306
....
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
....
4054
4055
4056
4057
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4062
4063
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4065
4066
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4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
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....
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....
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....
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....
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....
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....
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....
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....
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....
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....
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....
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....
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#endif
#ifdef HAVE_LIMITS_H
#  include <limits.h>
#endif
#ifdef HAVE_STDIO_H
#  include <stdio.h>
#endif
#define HAVE_ERRNO_H 1
#ifdef HAVE_ERRNO_H
#  include <errno.h>
#endif
#ifdef HAVE_ZLIB_H
#  ifdef HAVE_LIBZ
#    include <zlib.h>
#  endif
#else
#  ifdef HAVE_LIBZ
#    undef HAVE_LIBZ
#  endif
#endif
#ifdef CACKEY_DEBUG_SEARCH_SPEEDTEST
#  include <sys/time.h>
#endif

#define CK_PTR *
#define CK_DEFINE_FUNCTION(returnType, name) returnType name
#define CK_DECLARE_FUNCTION(returnType, name) returnType name
#define CK_DECLARE_FUNCTION_POINTER(returnType, name) returnType (* name)
#define CK_CALLBACK_FUNCTION(returnType, name) returnType (* name)
................................................................................

#include "pkcs11.h"
#include "pkcs11n.h"
#include "asn1-x509.h"
#include "sha1.h"
#include "md5.h"









#ifndef CACKEY_CRYPTOKI_VERSION_CODE
#  define CACKEY_CRYPTOKI_VERSION_CODE 0x021e00
#endif

/* GSC-IS v2.1 Definitions */
/** Classes **/
#define GSCIS_CLASS_ISO7816           0x00
................................................................................
#define GSCIS_TAG_SERNO               0x51
#define GSCIS_TAG_ISSUE_DATE          0x52
#define GSCIS_TAG_EXPIRE_DATE         0x53
#define GSCIS_TAG_CARD_TYPE           0x54
#define GSCIS_TAG_SECURITY_CODE       0x57
#define GSCIS_TAG_CARDID_AID          0x58

/*** PIV Codes ***/
#define NISTSP800_73_3_INSTR_GET_DATA 0xCB
#define NISTSP800_73_3_INSTR_GENAUTH  0x87

/*** PKI Information - EF 7000 ***/
#define GSCIS_TAG_CERTIFICATE         0x70
#define GSCIS_TAG_CERT_ISSUE_DATE     0x71
#define GSCIS_TAG_CERT_EXPIRE_DATE    0x72

/** Applet IDs **/
#define GSCIS_AID_CCC                 0xA0, 0x00, 0x00, 0x01, 0x16, 0xDB, 0x00
#define NISTSP800_73_3_PIV_AID        0xA0, 0x00, 0x00, 0x03, 0x08, 0x00, 0x00, 0x10, 0x00, 0x01, 0x00

/* PIV IDs */
/** Key Identifiers (NIST SP 800-78-3, Table 6-1 **/
#define NISTSP800_78_3_KEY_PIVAUTH   0x9A
#define NISTSP800_78_3_KEY_SIGNATURE 0x9C
#define NISTSP800_78_3_KEY_KEYMGT    0x9D
#define NISTSP800_78_3_KEY_CARDAUTH  0x9E

/** Algorithm Identifiers (NIST SP 800-78-3, Table 6-2 **/
#define NISTSP800_78_3_ALGO_RSA1024  0x06
#define NISTSP800_78_3_ALGO_RSA2048  0x07

/** Object Identifiers (NIST SP 800-73-3 Part 1, Table 2) **/
#define NISTSP800_73_3_OID_PIVAUTH   0x5F, 0xC1, 0x05
#define NISTSP800_73_3_OID_SIGNATURE 0x5F, 0xC1, 0x0A
#define NISTSP800_73_3_OID_KEYMGT    0x5F, 0xC1, 0x0B
#define NISTSP800_73_3_OID_CARDAUTH  0x5F, 0xC1, 0x01

/* Maximum size of data portion of APDUs */
/** Do not set this above 250 **/
#define CACKEY_APDU_MTU               250

/* ATR If not available */
#ifndef MAX_ATR_SIZE
................................................................................
#define MAX_ATR_SIZE 1024
#endif

#ifdef CACKEY_DEBUG
#  ifdef HAVE_TIME_H
#    include <time.h>
static time_t cackey_debug_start_time = 0;
static unsigned long CACKEY_DEBUG_GETTIME(void) {
	if (cackey_debug_start_time == 0) {
		cackey_debug_start_time = time(NULL);
	}

	return(time(NULL) - cackey_debug_start_time);
}
#  else

static unsigned long CACKEY_DEBUG_GETTIME(void) {
	return(0);
}
#  endif




#  define CACKEY_DEBUG_PRINTF(x...) { \
	static char buf_user[4096] = {0}; \
	snprintf(buf_user, sizeof(buf_user), x); \
	buf_user[sizeof(buf_user) - 1] = '\0'; \
	fprintf(cackey_debug_fd(), "[%lu]: %s():%i: %s\n", CACKEY_DEBUG_GETTIME(), __func__, __LINE__, buf_user); \
	fflush(cackey_debug_fd()); \
}
#  define CACKEY_DEBUG_PRINTBUF(f, x, y) { \
	static char buf_user[4096] = {0}, *buf_user_p; \
	unsigned long buf_user_size; \
	unsigned char *TMPBUF; \
	unsigned long idx; \
	int snprintf_ret; \
	TMPBUF = (unsigned char *) (x); \
	buf_user[0] = 0; \
	buf_user_p = buf_user; \
	buf_user_size = sizeof(buf_user); \
	for (idx = 1; idx < (y); idx++) { \
		if (buf_user_size <= 0) { \
			break; \
		}; \
		snprintf_ret = snprintf(buf_user_p, buf_user_size, ", %02x", TMPBUF[idx]); \
		if (snprintf_ret <= 0) { \
			break; \
		}; \
		buf_user_p += snprintf_ret; \
		buf_user_size -= snprintf_ret; \
	}; \
	buf_user[sizeof(buf_user) - 1] = '\0'; \
	fprintf(cackey_debug_fd(), "[%lu]: %s():%i: %s  (%s/%lu = {%02x%s})\n", CACKEY_DEBUG_GETTIME(), __func__, __LINE__, f, #x, (unsigned long) (y), TMPBUF[0], buf_user); \
	fflush(cackey_debug_fd()); \
}
#  define free(x) { CACKEY_DEBUG_PRINTF("FREE(%p) (%s)", (void *) x, #x); free(x); }

static FILE *cackey_debug_fd(void) {
	static FILE *fd = NULL;
	char *logfile;

	if (fd != NULL) {
................................................................................
		logfile = strchr(logfile, '=');
		if (logfile == NULL) {
			logfile = getenv("CACKEY_DEBUG_LOGFILE");
		} else {
			logfile++;
		}
	}

#ifdef CACKEY_DEBUG_LOGFILE
	if (logfile == NULL) {
		logfile = CACKEY_DEBUG_LOGFILE;
	}
#endif

	if (logfile != NULL) {
		CACKEY_DEBUG_PRINTF("Found log file: %s", logfile);

		fd = fopen(logfile, "a");
	}

................................................................................
}

static void *CACKEY_DEBUG_FUNC_MALLOC(size_t size, const char *func, int line) {
	void *retval;

	retval = malloc(size);




	fprintf(cackey_debug_fd(), "[%lu]: %s():%i: MALLOC() = %p\n", CACKEY_DEBUG_GETTIME(), func, line, retval);
	fflush(cackey_debug_fd());

	return(retval);
}

static void *CACKEY_DEBUG_FUNC_REALLOC(void *ptr, size_t size, const char *func, int line) {
	void *retval;

	retval = realloc(ptr, size);

	if (retval != ptr) {



		fprintf(cackey_debug_fd(), "[%lu]: %s():%i: REALLOC(%p) = %p\n", CACKEY_DEBUG_GETTIME(), func, line, ptr, retval);
		fflush(cackey_debug_fd());
	}

	if (retval == NULL) {
		CACKEY_DEBUG_PRINTF(" *** ERROR *** realloc returned NULL (size = %lu)", (unsigned long) size);
	}

................................................................................
}

static char *CACKEY_DEBUG_FUNC_STRDUP(const char *ptr, const char *func, int line) {
	char *retval;

	retval = strdup(ptr);




	fprintf(cackey_debug_fd(), "[%lu]: %s():%i: STRDUP_MALLOC() = %p\n", CACKEY_DEBUG_GETTIME(), func, line, retval);
	fflush(cackey_debug_fd());

	return(retval);
}

static const char *CACKEY_DEBUG_FUNC_TAG_TO_STR(unsigned char tag) {
	switch (tag) {
................................................................................
#  ifdef strdup
#    undef strdup
#  endif
#  define strdup(x) CACKEY_DEBUG_FUNC_STRDUP(x, __func__, __LINE__)
#else
#  define CACKEY_DEBUG_PRINTF(x...) /**/
#  define CACKEY_DEBUG_PRINTBUF(f, x, y) /**/

#  define CACKEY_DEBUG_FUNC_TAG_TO_STR(x) "DEBUG_DISABLED"
#  define CACKEY_DEBUG_FUNC_SCARDERR_TO_STR(x) "DEBUG_DISABLED"
#  define CACKEY_DEBUG_FUNC_OBJID_TO_STR(x) "DEBUG_DISABLED"
#  define CACKEY_DEBUG_FUNC_APPTYPE_TO_STR(x) "DEBUG_DISABLED"
#  define CACKEY_DEBUG_FUNC_ATTRIBUTE_TO_STR(x) "DEBUG_DISABLED"
#endif

/*
 * Include these source files in this translation unit so that we can bind to
 * functions and not include any symbols in the output shared object.
 */
#include "asn1-x509.c"
#include "sha1.c"
#include "md5.c"

typedef enum {
	CACKEY_ID_TYPE_CAC,
	CACKEY_ID_TYPE_PIV,
	CACKEY_ID_TYPE_CERT_ONLY
} cackey_pcsc_id_type;

struct cackey_pcsc_identity {


	cackey_pcsc_id_type id_type;

	size_t certificate_len;
	unsigned char *certificate;

	ssize_t keysize;

	union {
		struct {
			unsigned char applet[7];
			uint16_t file;
		} cac;

		struct {
			unsigned char key_id;
			char label[32];
		} piv;
	} card;
};

struct cackey_identity {
	struct cackey_pcsc_identity *pcsc_identity;

	CK_ATTRIBUTE *attributes;
	CK_ULONG attributes_count;
................................................................................
	CK_VOID_PTR decrypt_mech_parm;
	CK_ULONG decrypt_mech_parmlen;
	struct cackey_identity *decrypt_identity;
};

struct cackey_slot {
	int active;
	int internal;

	char *pcsc_reader;

	int pcsc_card_connected;
	SCARDHANDLE pcsc_card;

	int transaction_depth;
................................................................................
	int slot_reset;

	CK_FLAGS token_flags;

	unsigned char *label;

	DWORD protocol;

	unsigned int cached_certs_count;
	struct cackey_pcsc_identity *cached_certs;
};

typedef enum {
	CACKEY_TLV_APP_GENERIC = 0x01,
	CACKEY_TLV_APP_SKI     = 0x02,
	CACKEY_TLV_APP_PKI     = 0x04
} cackey_tlv_apptype;
................................................................................
CK_C_INITIALIZE_ARGS cackey_args;

/** Extra certificates to include in token **/
struct cackey_pcsc_identity extra_certs[] = {
#include "cackey_builtin_certs.h"
};

/* Protected Authentication Path command */
#define CACKEY_PIN_COMMAND_DEFAULT_XSTR(str) CACKEY_PIN_COMMAND_DEFAULT_STR(str)
#define CACKEY_PIN_COMMAND_DEFAULT_STR(str) #str
static char *cackey_pin_command = NULL;

/* PCSC Global Handles */
static LPSCARDCONTEXT cackey_pcsc_handle = NULL;

static unsigned long cackey_getversion(void) {
	static unsigned long retval = 255;
	unsigned long major = 0;
	unsigned long minor = 0;
................................................................................
 */
static void cackey_slots_disconnect_all(void) {
	uint32_t idx;

	CACKEY_DEBUG_PRINTF("Called.");

	for (idx = 0; idx < (sizeof(cackey_slots) / sizeof(cackey_slots[0])); idx++) {
		if (cackey_slots[idx].internal) {
			/* Skip internal slots */
			continue;
		}

		if (cackey_slots[idx].pcsc_card_connected) {
			CACKEY_DEBUG_PRINTF("SCardDisconnect(%lu) called", (unsigned long) idx);

			SCardDisconnect(cackey_slots[idx].pcsc_card, SCARD_LEAVE_CARD);
		}

		if (cackey_slots[idx].label) {
................................................................................
	if (slot->pcsc_card_connected) {
		SCardDisconnect(slot->pcsc_card, SCARD_LEAVE_CARD);
	}

	slot->slot_reset = 1;
	slot->pcsc_card_connected = 0;
	slot->token_flags = 0;

	if (cackey_pin_command == NULL) {
		login_required = 0;
	}

	if (login_required == -1) {
		if (cackey_login_required(slot) != CACKEY_PCSC_S_OK) {
			login_required = 1;
		} else {
			login_required = 0;
		}
................................................................................
	CACKEY_DEBUG_PRINTF("Returning.");

	return;
}

/*
 * SYNPOSIS
 *     LONG cackey_reconnect_card(struct cackey_slot *slot, DWORD default_protocol);
 *
 * ARGUMENTS
 *     cackey_slot *slot
 *         Slot to send commands to
 *
 *     DWORD default_protocol
 *         Protocol to attempt first
 *



 * RETURN VALUE
 *     The return value from SCardReconnect()
 *
 * NOTES
 *     This function is a wrapper around SCardReconnect()
 *
 *     The SCardReconnect() function call will be called first with the
 *     dwPreferredProtocols of "default_protocol".  If that call returns
 *     SCARD_E_PROTO_MISMATCH try again with a protocol of T=0, and failing
 *     that T=1.
 *
 */
static LONG cackey_reconnect_card(struct cackey_slot *slot, DWORD default_protocol) {
	DWORD selected_protocol;
	LONG scard_conn_ret;

	selected_protocol = 0;

	scard_conn_ret = SCardReconnect(slot->pcsc_card, SCARD_SHARE_SHARED, default_protocol, SCARD_RESET_CARD, &selected_protocol);

	if (scard_conn_ret == SCARD_E_PROTO_MISMATCH) {
		CACKEY_DEBUG_PRINTF("SCardReconnect() returned SCARD_E_PROTO_MISMATCH, trying with just T=0")
		scard_conn_ret = SCardReconnect(slot->pcsc_card, SCARD_SHARE_SHARED, SCARD_PROTOCOL_T0, SCARD_RESET_CARD, &selected_protocol);

		if (scard_conn_ret == SCARD_E_PROTO_MISMATCH) {
			CACKEY_DEBUG_PRINTF("SCardReconnect() returned SCARD_E_PROTO_MISMATCH, trying with just T=1")
			scard_conn_ret = SCardReconnect(slot->pcsc_card, SCARD_SHARE_SHARED, SCARD_PROTOCOL_T1, SCARD_RESET_CARD, &selected_protocol);
		}
	}

	if (scard_conn_ret == SCARD_S_SUCCESS) {
		slot->protocol = selected_protocol;
	}

	return(scard_conn_ret);
}

/*
 * SYNPOSIS
 *     cackey_ret cackey_connect_card(struct cackey_slot *slot);
................................................................................
		CACKEY_DEBUG_PRINTF("Connection to PC/SC failed, returning in failure");

		return(CACKEY_PCSC_E_GENERIC);
	}

	/* Connect to reader, if needed */
	if (!slot->pcsc_card_connected) {
		CACKEY_DEBUG_PRINTF("SCardConnect(%s) called for slot %p", slot->pcsc_reader, slot);
		scard_conn_ret = SCardConnect(*cackey_pcsc_handle, slot->pcsc_reader, SCARD_SHARE_SHARED, SCARD_PROTOCOL_T0 | SCARD_PROTOCOL_T1, &slot->pcsc_card, &protocol);

		if (scard_conn_ret == SCARD_E_PROTO_MISMATCH) {
			CACKEY_DEBUG_PRINTF("SCardConnect() returned SCARD_E_PROTO_MISMATCH, trying with just T=0")
			scard_conn_ret = SCardConnect(*cackey_pcsc_handle, slot->pcsc_reader, SCARD_SHARE_SHARED, SCARD_PROTOCOL_T0, &slot->pcsc_card, &protocol);

			if (scard_conn_ret == SCARD_E_PROTO_MISMATCH) {
................................................................................

				if (scard_conn_ret == SCARD_E_PROTO_MISMATCH) {
					CACKEY_DEBUG_PRINTF("SCardConnect() returned SCARD_E_PROTO_MISMATCH, trying with just T=1")
					scard_conn_ret = SCardConnect(*cackey_pcsc_handle, slot->pcsc_reader, SCARD_SHARE_SHARED, SCARD_PROTOCOL_T1, &slot->pcsc_card, &protocol);
				}
			}

			scard_conn_ret = cackey_reconnect_card(slot, protocol);
		}

		if (scard_conn_ret != SCARD_S_SUCCESS) {
			CACKEY_DEBUG_PRINTF("Connection to card failed, returning in failure (SCardConnect() = %s/%li)", CACKEY_DEBUG_FUNC_SCARDERR_TO_STR(scard_conn_ret), (long) scard_conn_ret);

			return(CACKEY_PCSC_E_GENERIC);
		}

		slot->pcsc_card_connected = 1;
		slot->transaction_depth = 0;
		slot->transaction_need_hw_lock = 0;
		slot->protocol = protocol;
	}

	CACKEY_DEBUG_PRINTF("Returning in success");

	return(CACKEY_PCSC_S_OK);
}

/*
 * SYNPOSIS
 *     cackey_ret cackey_begin_transaction(struct cackey_slot *slot);
................................................................................
 *     cackey_pcsc_connect() if needed.
 *
 *     It will connect to the card in the reader attached to the slot
 *     specified.  It will reconnect to the card if the connection
 *     goes away.
 *
 */
static cackey_ret cackey_send_apdu(struct cackey_slot *slot, unsigned char class, unsigned char instruction, unsigned char p1, unsigned char p2, unsigned int lc, unsigned char *data, unsigned int le, uint16_t *respcode, unsigned char *respdata, size_t *respdata_len) {
	uint8_t major_rc, minor_rc;
	size_t bytes_to_copy, tmp_respdata_len;
	LPCSCARD_IO_REQUEST pioSendPci;

	DWORD xmit_len, recv_len;
	LONG scard_xmit_ret, scard_reconn_ret;
	BYTE xmit_buf[1024], recv_buf[1024];
	int pcsc_connect_ret, pcsc_getresp_ret;
	int idx;

	CACKEY_DEBUG_PRINTF("Called.");
................................................................................

		return(CACKEY_PCSC_E_GENERIC);
	}

	/* Determine which protocol to send using */
	switch (slot->protocol) {
		case SCARD_PROTOCOL_T0:
			CACKEY_DEBUG_PRINTF("Protocol to send datagram is T=0");

			pioSendPci = SCARD_PCI_T0;

			break;
		case SCARD_PROTOCOL_T1:
			CACKEY_DEBUG_PRINTF("Protocol to send datagram is T=1");

			pioSendPci = SCARD_PCI_T1;

			break;
		default:
			CACKEY_DEBUG_PRINTF("Invalid protocol found, aborting.");

			return(CACKEY_PCSC_E_GENERIC);
................................................................................
	/* Transmit */
	xmit_len = 0;
	xmit_buf[xmit_len++] = class;
	xmit_buf[xmit_len++] = instruction;
	xmit_buf[xmit_len++] = p1;
	xmit_buf[xmit_len++] = p2;
	if (data) {
		if (lc > 255) {
			CACKEY_DEBUG_PRINTF("CAUTION!  Using an Lc greater than 255 is untested.  Lc = %u", lc);

			xmit_buf[xmit_len++] = 0x82; /* XXX UNTESTED */
			xmit_buf[xmit_len++] = (lc & 0xff00) >> 8;
			xmit_buf[xmit_len++] = lc & 0xff;
		} else {
			xmit_buf[xmit_len++] = lc;
		}
		for (idx = 0; idx < lc; idx++) {
			xmit_buf[xmit_len++] = data[idx];
		}
	}

	if (le != 0x00) {
		if (le > 256) {
			CACKEY_DEBUG_PRINTF("CAUTION!  Using an Le greater than 256 is untested.  Le = %u", le);

			xmit_buf[xmit_len++] = 0x82; /* XXX UNTESTED */
			xmit_buf[xmit_len++] = (le & 0xff00) >> 8;
			xmit_buf[xmit_len++] = le & 0xff;
		} else if (le == 256) {
			xmit_buf[xmit_len++] = 0x00;
		} else {
			xmit_buf[xmit_len++] = le;
		}
	}

	/* Begin Smartcard Transaction */
	cackey_begin_transaction(slot);

	if (class == GSCIS_CLASS_ISO7816 && instruction == GSCIS_INSTR_VERIFY && p1 == 0x00) {
		CACKEY_DEBUG_PRINTF("Sending APDU: <<censored>>");
	} else {
		CACKEY_DEBUG_PRINTBUF("Sending APDU:", xmit_buf, xmit_len);
	}

	recv_len = sizeof(recv_buf);
	scard_xmit_ret = SCardTransmit(slot->pcsc_card, pioSendPci, xmit_buf, xmit_len, NULL, recv_buf, &recv_len);
................................................................................

	if (scard_xmit_ret == SCARD_E_NOT_TRANSACTED) {
		CACKEY_DEBUG_PRINTF("Failed to send APDU to card (SCardTransmit() = %s/%lx), will ask calling function to retry (not resetting card)...", CACKEY_DEBUG_FUNC_SCARDERR_TO_STR(scard_xmit_ret), (unsigned long) scard_xmit_ret);

		/* Begin Smartcard Transaction */
		cackey_end_transaction(slot);

		cackey_reconnect_card(slot, slot->protocol);

		return(CACKEY_PCSC_E_RETRY);
	}

	if (scard_xmit_ret != SCARD_S_SUCCESS) {
		CACKEY_DEBUG_PRINTF("Failed to send APDU to card (SCardTransmit() = %s/%lx)", CACKEY_DEBUG_FUNC_SCARDERR_TO_STR(scard_xmit_ret), (unsigned long) scard_xmit_ret);

		CACKEY_DEBUG_PRINTF("Marking slot as having been reset");
		cackey_mark_slot_reset(slot);

		if (scard_xmit_ret == SCARD_W_RESET_CARD) {
			CACKEY_DEBUG_PRINTF("Reset required, please hold...");

			scard_reconn_ret = cackey_reconnect_card(slot, SCARD_PROTOCOL_T0 | SCARD_PROTOCOL_T1);

			if (scard_reconn_ret == SCARD_S_SUCCESS) {


				switch (slot->protocol) {
					case SCARD_PROTOCOL_T0:
						pioSendPci = SCARD_PCI_T0;

						break;
					case SCARD_PROTOCOL_T1:
						pioSendPci = SCARD_PCI_T1;
................................................................................
	}


	CACKEY_DEBUG_PRINTF("APDU Returned an error, returning in failure");

	return(CACKEY_PCSC_E_GENERIC);
}

static unsigned char *cackey_read_bertlv_tag(unsigned char *buffer, size_t *buffer_len_p, unsigned char tag, unsigned char *outbuffer, size_t *outbuffer_len_p) {
	unsigned char *buffer_p;
	size_t outbuffer_len, buffer_len;
	size_t size;
	int idx;

	CACKEY_DEBUG_PRINTF("Called.");

	if (buffer_len_p == NULL) {
		CACKEY_DEBUG_PRINTF("buffer_len_p is NULL.  Returning in failure.");

		return(NULL);
	}

	if (outbuffer_len_p == NULL) {
		CACKEY_DEBUG_PRINTF("outbuffer_len_p is NULL.  Returning in failure.");

		return(NULL);
	}

	buffer_len = *outbuffer_len_p;
	outbuffer_len = *outbuffer_len_p;

	if (buffer_len < 2) {
		CACKEY_DEBUG_PRINTF("buffer_len is less than 2, so we can't read any tag.  Returning in failure.");

		return(NULL);
	}

	buffer_p = buffer;
	if (buffer_p[0] != tag) {
		CACKEY_DEBUG_PRINTF("Tag found was not tag expected.  Tag = %02x, Expected = %02x.  Returning in failure.", (unsigned int) buffer_p[0], tag);

		return(NULL);
	}

	buffer_p++;
	buffer_len--;

	if ((buffer_p[0] & 0x80) == 0x80) {
		size = 0;
		idx = (buffer_p[0] & 0x7f);

		if (idx > buffer_len) {
			CACKEY_DEBUG_PRINTF("Malformed BER value -- not enough bytes available to read length (idx = %i, buffer_len = %lu)", idx, (unsigned long) buffer_len);

			return(NULL);
		}

		for (; idx > 0; idx--) {
			buffer_p++;
			buffer_len--;

			size <<= 8;
			size |= buffer_p[0];
		}
	} else {
		size = buffer_p[0];
	}

	buffer_p++;
	buffer_len--;

	if (size > outbuffer_len) {
		CACKEY_DEBUG_PRINTF("Unable to copy value buffer to outbuffer, not enough room.  Value buffer length = %lu, out buffer length = %lu", (unsigned long) size, (unsigned long) outbuffer_len);

		return(NULL);
	}

	*outbuffer_len_p = size;
	if (outbuffer) {
		memcpy(outbuffer, buffer_p, size);
		buffer_p += size;
		buffer_len -= size;

		*buffer_len_p = buffer_len;

		CACKEY_DEBUG_PRINTBUF("BER-TLV results:", outbuffer, size);
	} else {
		memmove(buffer, buffer_p, size);
		buffer_p = buffer;

		CACKEY_DEBUG_PRINTBUF("BER-TLV results:", buffer, size);
	}

	CACKEY_DEBUG_PRINTF("Returning in success.  Size of contents for tag %02x is %lu", (unsigned int) tag, (unsigned long) size);

	return(buffer_p);
}

/*
 * SYNPOSIS
 *     ssize_t cackey_get_data(struct cackey_slot *slot, unsigned char *buffer, size_t buffer_len, unsigned char oid[3]);
 *
 * ARGUMENTS
 *     struct cackey_slot *slot
 *         Slot to send commands to
 *
 *     unsigned char *buffer
 *         [OUT] Buffer
 *
 *     size_t buffer_len
 *         Number of bytes to attempt to read
 *
 *     unsigned char oid[3]
 *         3-byte OID to read
 *
 *
 * RETURN VALUE
 *     This function returns the number of bytes actually read, or -1 on error.
 *
 * NOTES
 *     None
 *
 */
static ssize_t cackey_get_data(struct cackey_slot *slot, unsigned char *buffer, size_t buffer_len, unsigned char oid[3]) {
	unsigned char cmd[] = {0x5C, 0x03, 0x00, 0x00, 0x00};
	unsigned char *buffer_p;
	size_t init_buffer_len, size;
	uint16_t respcode;
	int send_ret;

	CACKEY_DEBUG_PRINTF("Called.");

	init_buffer_len = buffer_len;

	cmd[2] = oid[0];
	cmd[3] = oid[1];
	cmd[4] = oid[2];

	/* 256 to indicate the largest message size -- not clear if this will work with all messages */
	send_ret = cackey_send_apdu(slot, GSCIS_CLASS_ISO7816, NISTSP800_73_3_INSTR_GET_DATA, 0x3F, 0xFF, sizeof(cmd), cmd, 256, &respcode, buffer, &buffer_len);

	if (send_ret == CACKEY_PCSC_E_RETRY) {
		CACKEY_DEBUG_PRINTF("ADPU Sending failed, retrying read buffer");

		return(cackey_get_data(slot, buffer, init_buffer_len, oid));
	}

	if (send_ret != CACKEY_PCSC_S_OK) {
		CACKEY_DEBUG_PRINTF("cackey_send_apdu() failed, returning in failure");

		return(-1);
	}

#ifdef CACKEY_PARANOID
#  ifdef _POSIX_SSIZE_MAX
	if (buffer_len > _POSIX_SSIZE_MAX) {
		CACKEY_DEBUG_PRINTF("Read bytes (buffer_len) exceeds maximum value, returning in failure. (max = %li, buffer_len = %lu)", (long) _POSIX_SSIZE_MAX, (unsigned long) buffer_len);

		return(-1);
	}
#  endif
#endif

	if (buffer_len < 2) {
		CACKEY_DEBUG_PRINTF("APDU GET DATA returned %lu bytes, which is too short for a BER-TLV response", (unsigned long) buffer_len);

		return(-1);
	}

	size = buffer_len;
	buffer_p = cackey_read_bertlv_tag(buffer, &buffer_len, 0x53, NULL, &size);

	if (buffer_p == NULL) {
		CACKEY_DEBUG_PRINTF("Tag decoding failed, returning in error.");

		return(-1);
	}

	CACKEY_DEBUG_PRINTBUF("GET DATA result", buffer, size);

	CACKEY_DEBUG_PRINTF("Returning in success, read %lu bytes", (unsigned long) size);

	return(size);
}

/*
 * SYNPOSIS
 *     ssize_t cackey_read_buffer(struct cackey_slot *slot, unsigned char *buffer, size_t count, unsigned char t_or_v, size_t initial_offset);
 *
 * ARGUMENTS
 *     struct cackey_slot *slot
................................................................................

	if (free_start) {
		free(start);
	}

	return;
}

static struct cackey_pcsc_identity *cackey_copy_certs(struct cackey_pcsc_identity *dest, struct cackey_pcsc_identity *start, size_t count) {
	size_t idx;

	if (start == NULL) {
		return(NULL);
	}

	if (dest == NULL) {
		dest = malloc(sizeof(*dest) * count);
	}

	for (idx = 0; idx < count; idx++) {
		dest[idx].id_type = start[idx].id_type;

		switch (dest[idx].id_type) {
			case CACKEY_ID_TYPE_CAC:
				memcpy(dest[idx].card.cac.applet, start[idx].card.cac.applet, sizeof(dest[idx].card.cac.applet));
				dest[idx].card.cac.file = start[idx].card.cac.file;
				break;
			case CACKEY_ID_TYPE_PIV:
				dest[idx].card.piv.key_id = start[idx].card.piv.key_id;
				memcpy(dest[idx].card.piv.label, start[idx].card.piv.label, sizeof(dest[idx].card.piv.label));
				break;
			case CACKEY_ID_TYPE_CERT_ONLY:
				break;
		}
		dest[idx].certificate_len = start[idx].certificate_len;
		dest[idx].keysize = start[idx].keysize;

		dest[idx].certificate = malloc(dest[idx].certificate_len);
		memcpy(dest[idx].certificate, start[idx].certificate, dest[idx].certificate_len);
	}

	return(dest);
}

/*
 * SYNPOSIS
 *     ...
 *
 * ARGUMENTS
 *     ...
................................................................................
 * NOTES
 *     ...
 *
 */
static struct cackey_pcsc_identity *cackey_read_certs(struct cackey_slot *slot, struct cackey_pcsc_identity *certs, unsigned long *count) {
	struct cackey_pcsc_identity *curr_id;
	struct cackey_tlv_entity *ccc_tlv, *ccc_curr, *app_tlv, *app_curr;
	unsigned char ccc_aid[] = {GSCIS_AID_CCC}, piv_aid[] = {NISTSP800_73_3_PIV_AID};
	unsigned char *piv_oid, piv_oid_pivauth[] = {NISTSP800_73_3_OID_PIVAUTH}, piv_oid_signature[] = {NISTSP800_73_3_OID_SIGNATURE}, piv_oid_keymgt[] = {NISTSP800_73_3_OID_KEYMGT};
	unsigned char curr_aid[7];
	unsigned char buffer[8192], *buffer_p, *tmpbuf;
	unsigned long outidx = 0;
	char *piv_label;
	cackey_ret transaction_ret;
	ssize_t read_ret;
	size_t buffer_len, tmpbuflen;
	int certs_resizable;
	int send_ret, select_ret;
	int piv_key, piv = 0;
	int idx;
#ifdef HAVE_LIBZ
	int uncompress_ret;
	z_stream gzip_stream;
#endif

	CACKEY_DEBUG_PRINTF("Called.");

	if (count == NULL) {
		CACKEY_DEBUG_PRINTF("count is NULL, returning in failure");

		return(NULL);
................................................................................
	if (certs != NULL) {
		if (*count == 0) {
			CACKEY_DEBUG_PRINTF("Requested we return 0 objects, short-circuit");

			return(certs);
		}
	}

	if (!slot->slot_reset) {
		if (slot->cached_certs) {
			if (certs == NULL) {
				certs = malloc(sizeof(*certs) * slot->cached_certs_count);
				*count = slot->cached_certs_count;
			} else {
				if (*count > slot->cached_certs_count) {
					*count = slot->cached_certs_count;
				}
			}

			cackey_copy_certs(certs, slot->cached_certs, *count);

			return(certs);
		}
	}

	if (slot->cached_certs) {
		cackey_free_certs(slot->cached_certs, slot->cached_certs_count, 1);

		slot->cached_certs = NULL;
	}

	/* Begin a SmartCard transaction */
	transaction_ret = cackey_begin_transaction(slot);
	if (transaction_ret != CACKEY_PCSC_S_OK) {
		CACKEY_DEBUG_PRINTF("Unable begin transaction, returning in failure");

		return(NULL);
................................................................................
	} else {
		certs_resizable = 0;
	}

	/* Select the CCC Applet */
	send_ret = cackey_select_applet(slot, ccc_aid, sizeof(ccc_aid));
	if (send_ret != CACKEY_PCSC_S_OK) {
		/* Try PIV application */
		send_ret = cackey_select_applet(slot, piv_aid, sizeof(piv_aid));
		if (send_ret == CACKEY_PCSC_S_OK) {
			CACKEY_DEBUG_PRINTF("We have a PIV card -- not using the CCC, pulling pre-selected keys");

			piv = 1;
		} else {
			CACKEY_DEBUG_PRINTF("Unable to select CCC Applet, returning in failure");

			/* Terminate SmartCard Transaction */
			cackey_end_transaction(slot);

			return(NULL);
		}
	}

	if (piv) {
		for (idx = 0; idx < 3; idx++) {
			switch (idx) {
				case 0:
					piv_oid = piv_oid_pivauth;
					piv_key = NISTSP800_78_3_KEY_PIVAUTH;
					piv_label = "Authentication";
					break;
				case 1:
					piv_oid = piv_oid_signature;
					piv_key = NISTSP800_78_3_KEY_SIGNATURE;
					piv_label = "Signature";
					break;
				case 2:
					piv_oid = piv_oid_keymgt;
					piv_key = NISTSP800_78_3_KEY_KEYMGT;
					piv_label = "Key Management";
					break;
			}

			read_ret = cackey_get_data(slot, buffer, sizeof(buffer), piv_oid);

			if (read_ret <= 0) {
				continue;
			}

			curr_id = &certs[outidx];
			outidx++;

			curr_id->keysize = -1;
			curr_id->id_type = CACKEY_ID_TYPE_PIV;
			curr_id->card.piv.key_id = piv_key;
			memcpy(curr_id->card.piv.label, piv_label, strlen(piv_label) + 1);

			curr_id->certificate_len = read_ret;
			curr_id->certificate = malloc(curr_id->certificate_len);

			buffer_len = sizeof(buffer);
			buffer_p = cackey_read_bertlv_tag(buffer, &buffer_len, 0x70, curr_id->certificate, &curr_id->certificate_len);

			if (buffer_p == NULL) {
				CACKEY_DEBUG_PRINTF("Reading certificate from BER-TLV response failed, skipping key %i", idx);

				free(curr_id->certificate);

				curr_id->certificate = NULL;

				outidx--;

				continue;
			}

#ifdef HAVE_LIBZ
			if (curr_id->certificate_len > 4) {
				if (memcmp(curr_id->certificate, "\x1f\x8b\x08\x00", 4) == 0) {
					tmpbuflen = curr_id->certificate_len * 2;
					tmpbuf = malloc(tmpbuflen);

					CACKEY_DEBUG_PRINTBUF("Attempting to decompress:", curr_id->certificate, curr_id->certificate_len);

					gzip_stream.zalloc = NULL;
					gzip_stream.zfree = NULL;
					gzip_stream.opaque = NULL;

					gzip_stream.next_in  = curr_id->certificate;
					gzip_stream.avail_in = curr_id->certificate_len;
					gzip_stream.next_out = tmpbuf;
					gzip_stream.avail_out = tmpbuflen;

					uncompress_ret = inflateInit(&gzip_stream);
					if (uncompress_ret == Z_OK) {
						uncompress_ret = inflateReset2(&gzip_stream, 31);
					}
					if (uncompress_ret == Z_OK) {
						uncompress_ret = inflate(&gzip_stream, 0);
					}
					if (uncompress_ret == Z_STREAM_END) {
						uncompress_ret = inflateEnd(&gzip_stream);
					} else {
						uncompress_ret = Z_DATA_ERROR;
					}
					if (uncompress_ret == Z_OK) {
						tmpbuflen = gzip_stream.total_out;

						CACKEY_DEBUG_PRINTBUF("Decompressed to:", tmpbuf, tmpbuflen);

						free(curr_id->certificate);

						curr_id->certificate = tmpbuf;
						curr_id->certificate_len = tmpbuflen;
					} else {
						CACKEY_DEBUG_PRINTF("Decompressing failed! uncompress() returned %i", uncompress_ret);

						free(tmpbuf);
					}
				}
			}
#endif
		}
	} else {
		/* Read all the applets from the CCC's TLV */
		ccc_tlv = cackey_read_tlv(slot);

		/* Look for CARDURLs that coorespond to PKI applets */
		for (ccc_curr = ccc_tlv; ccc_curr; ccc_curr = ccc_curr->_next) {
			CACKEY_DEBUG_PRINTF("Found tag: %s ... ", CACKEY_DEBUG_FUNC_TAG_TO_STR(ccc_curr->tag));

			if (ccc_curr->tag != GSCIS_TAG_CARDURL) {
				CACKEY_DEBUG_PRINTF("  ... skipping it (we only care about CARDURLs)");

				continue;
			}

			if ((ccc_curr->value_cardurl->apptype & CACKEY_TLV_APP_PKI) != CACKEY_TLV_APP_PKI) {
				CACKEY_DEBUG_PRINTF("  ... skipping it (we only care about PKI applets, this applet supports: %s/%02x)", CACKEY_DEBUG_FUNC_APPTYPE_TO_STR(ccc_curr->value_cardurl->apptype), (unsigned int) ccc_curr->value_cardurl->apptype);

				continue;
			}

			CACKEY_DEBUG_PRINTBUF("RID:", ccc_curr->value_cardurl->rid, sizeof(ccc_curr->value_cardurl->rid));
			CACKEY_DEBUG_PRINTF("AppID = %s/%04lx", CACKEY_DEBUG_FUNC_OBJID_TO_STR(ccc_curr->value_cardurl->appid), (unsigned long) ccc_curr->value_cardurl->appid);
			CACKEY_DEBUG_PRINTF("ObjectID = %s/%04lx", CACKEY_DEBUG_FUNC_OBJID_TO_STR(ccc_curr->value_cardurl->objectid), (unsigned long) ccc_curr->value_cardurl->objectid);

			memcpy(curr_aid, ccc_curr->value_cardurl->rid, sizeof(ccc_curr->value_cardurl->rid));
			curr_aid[sizeof(curr_aid) - 2] = (ccc_curr->value_cardurl->appid >> 8) & 0xff;
			curr_aid[sizeof(curr_aid) - 1] = ccc_curr->value_cardurl->appid & 0xff;

			/* Select found applet ... */
			select_ret = cackey_select_applet(slot, curr_aid, sizeof(curr_aid));
			if (select_ret != CACKEY_PCSC_S_OK) {
				CACKEY_DEBUG_PRINTF("Failed to select applet, skipping processing of this object");

				continue;
			}

			/* ... and object (file) */
			select_ret = cackey_select_file(slot, ccc_curr->value_cardurl->objectid);
			if (select_ret != CACKEY_PCSC_S_OK) {
				CACKEY_DEBUG_PRINTF("Failed to select file, skipping processing of this object");

				continue;
			}

			/* Process this file's TLV looking for certificates */
			app_tlv = cackey_read_tlv(slot);
	
			for (app_curr = app_tlv; app_curr; app_curr = app_curr->_next) {
				CACKEY_DEBUG_PRINTF("Found tag: %s", CACKEY_DEBUG_FUNC_TAG_TO_STR(app_curr->tag));
				if (app_curr->tag != GSCIS_TAG_CERTIFICATE) {
					CACKEY_DEBUG_PRINTF("  ... skipping it (we only care about CERTIFICATEs)");

					continue;
				}

				curr_id = &certs[outidx];
				outidx++;

				curr_id->id_type = CACKEY_ID_TYPE_CAC;
				memcpy(curr_id->card.cac.applet, curr_aid, sizeof(curr_id->card.cac.applet));
				curr_id->card.cac.file = ccc_curr->value_cardurl->objectid;
				curr_id->keysize = -1;


				CACKEY_DEBUG_PRINTF("Filling curr_id->card.cac.applet (%p) with %lu bytes:", curr_id->card.cac.applet, (unsigned long) sizeof(curr_id->card.cac.applet));
				CACKEY_DEBUG_PRINTBUF("VAL:", curr_id->card.cac.applet, sizeof(curr_id->card.cac.applet));

				curr_id->certificate_len = app_curr->length;

				curr_id->certificate = malloc(curr_id->certificate_len);
				memcpy(curr_id->certificate, app_curr->value, curr_id->certificate_len);

				if (outidx >= *count) {
					if (certs_resizable) {
						*count *= 2;
						if (*count != 0) {
							certs = realloc(certs, sizeof(*certs) * (*count));
						} else {
							certs = NULL;
						}
					} else {
						break;
					}
				}
			}

			cackey_free_tlv(app_tlv);

			if (outidx >= *count) {
				break;
			}
		}

		cackey_free_tlv(ccc_tlv);
	}







	*count = outidx;

	if (certs_resizable) {
		if (*count != 0) {
			certs = realloc(certs, sizeof(*certs) * (*count));
		} else {
			certs = NULL;
		}
	}

	slot->cached_certs = cackey_copy_certs(NULL, certs, *count);
	slot->cached_certs_count = *count;

	/* Terminate SmartCard Transaction */
	cackey_end_transaction(slot);

	return(certs);
}

................................................................................
 *     ...
 *
 * NOTES
 *     ...
 *
 */
static ssize_t cackey_signdecrypt(struct cackey_slot *slot, struct cackey_identity *identity, unsigned char *buf, size_t buflen, unsigned char *outbuf, size_t outbuflen, int padInput, int unpadOutput) {
	cackey_pcsc_id_type id_type;
	unsigned char dyn_auth_template[10], *dyn_auth_tmpbuf;
	unsigned char *tmpbuf, *tmpbuf_s, *outbuf_s, *outbuf_p;
	unsigned char bytes_to_send, p1, class;
	unsigned char blocktype;
	cackey_ret send_ret;
	uint16_t respcode;
	ssize_t retval = 0, unpadoffset;
	size_t tmpbuflen, padlen, tmpoutbuflen, outbuf_len;
	int free_tmpbuf = 0;
	int le;

	CACKEY_DEBUG_PRINTF("Called.");

	if (slot == NULL) {
		CACKEY_DEBUG_PRINTF("Error.  slot is NULL");
................................................................................
	}

	if (identity->pcsc_identity == NULL) {
		CACKEY_DEBUG_PRINTF("Error.  identity->pcsc_identity is NULL");

		return(-1);
	}

	id_type = identity->pcsc_identity->id_type;
	if (id_type == CACKEY_ID_TYPE_CERT_ONLY) {
		CACKEY_DEBUG_PRINTF("Error.  identity->pcsc_identity is CACKEY_ID_TYPE_CERT_ONLY, which cannot be used for sign/decrypt");

		return(-1);
	}

	switch (id_type) {
		case CACKEY_ID_TYPE_PIV:
		case CACKEY_ID_TYPE_CAC:
			break;
		default:
			CACKEY_DEBUG_PRINTF("Error.  identity->pcsc_identity is not a supported value. Type is: 0x%lx (PIV = 0x%lx, CAC = 0x%lx)", (unsigned long) id_type, (unsigned long) CACKEY_ID_TYPE_PIV, (unsigned long) CACKEY_ID_TYPE_CAC);

			return(-1);
	}

	/* Determine identity Key size */
	if (identity->pcsc_identity->keysize < 0) {
		identity->pcsc_identity->keysize = x509_to_keysize(identity->pcsc_identity->certificate, identity->pcsc_identity->certificate_len);
	}

	/* Pad message to key size */
................................................................................
		padlen = 0;
	}

	/* Begin transaction */
	cackey_begin_transaction(slot);

	/* Select correct applet */
	switch (id_type) {
		case CACKEY_ID_TYPE_CAC:
			CACKEY_DEBUG_PRINTF("Selecting applet found at %p ...", identity->pcsc_identity->card.cac.applet);
			cackey_select_applet(slot, identity->pcsc_identity->card.cac.applet, sizeof(identity->pcsc_identity->card.cac.applet));

			/* Select correct file */
			cackey_select_file(slot, identity->pcsc_identity->card.cac.file);
			break;
		case CACKEY_ID_TYPE_PIV:
			dyn_auth_template[0] = 0x7C;
			dyn_auth_template[1] = 0x82;
			dyn_auth_template[2] = ((tmpbuflen + 6) & 0xff00) >> 8;
			dyn_auth_template[3] = (tmpbuflen + 6) & 0x00ff;
			dyn_auth_template[4] = 0x82;
			dyn_auth_template[5] = 0x00;
			dyn_auth_template[6] = 0x81;
			dyn_auth_template[7] = 0x82;
			dyn_auth_template[8] = (tmpbuflen & 0xff00) >> 8;
			dyn_auth_template[9] = tmpbuflen & 0x00ff;

			dyn_auth_tmpbuf = malloc(tmpbuflen + sizeof(dyn_auth_template));
			memcpy(dyn_auth_tmpbuf, dyn_auth_template, sizeof(dyn_auth_template));
			memcpy(dyn_auth_tmpbuf + sizeof(dyn_auth_template), tmpbuf, tmpbuflen);

			if (free_tmpbuf) {
				free(tmpbuf);
			}

			tmpbuflen += sizeof(dyn_auth_template);
			tmpbuf = dyn_auth_tmpbuf;
			free_tmpbuf = 1;

			break;
		case CACKEY_ID_TYPE_CERT_ONLY:
			break;
	}

	tmpbuf_s = tmpbuf;
	outbuf_s = outbuf;
	while (tmpbuflen) {
		tmpoutbuflen = outbuflen;

		if (tmpbuflen > CACKEY_APDU_MTU) {
			bytes_to_send = CACKEY_APDU_MTU;
		} else {
			bytes_to_send = tmpbuflen;
		}

		send_ret = CACKEY_PCSC_E_GENERIC;
		switch (id_type) {
			case CACKEY_ID_TYPE_CAC:
				if (tmpbuflen > CACKEY_APDU_MTU) {
					p1 = 0x80;
					le = 0x00;
				} else {

					p1 = 0x00;
					le = 0x00;
				}



				send_ret = cackey_send_apdu(slot, GSCIS_CLASS_GLOBAL_PLATFORM, GSCIS_INSTR_SIGNDECRYPT, p1, 0x00, bytes_to_send, tmpbuf, le, &respcode, outbuf, &tmpoutbuflen);


				break;
			case CACKEY_ID_TYPE_PIV:
				if (tmpbuflen > CACKEY_APDU_MTU) {
					class = 0x10;
					le = 0x00;
				} else {
					class = GSCIS_CLASS_ISO7816;
					le = 256;
				}

				send_ret = cackey_send_apdu(slot, class, NISTSP800_73_3_INSTR_GENAUTH, NISTSP800_78_3_ALGO_RSA2048, identity->pcsc_identity->card.piv.key_id, bytes_to_send, tmpbuf, le, &respcode, outbuf, &tmpoutbuflen);
				break;
			case CACKEY_ID_TYPE_CERT_ONLY:
				break;
		}

		if (send_ret != CACKEY_PCSC_S_OK) {
			if (free_tmpbuf) {
				if (tmpbuf_s) {
					free(tmpbuf_s);
				}
			}

			/* End transaction */
			cackey_end_transaction(slot);

			if (send_ret == CACKEY_PCSC_E_RETRY) {
				CACKEY_DEBUG_PRINTF("ADPU Sending Failed -- retrying.");

				return(cackey_signdecrypt(slot, identity, buf, buflen, outbuf, outbuflen, padInput, unpadOutput));
			}

			CACKEY_DEBUG_PRINTF("ADPU Sending Failed -- returning in error.");

			if (respcode == 0x6982 || respcode == 0x6e00) {
				if (respcode == 0x6E00) {
					CACKEY_DEBUG_PRINTF("Got \"WRONG CLASS\", this means we are talking to the wrong object (likely because the card went away) -- resetting");
				} else {
					CACKEY_DEBUG_PRINTF("Security status not satisified (respcode = 0x%04x).  Returning NEEDLOGIN", (int) respcode);
				}

				cackey_mark_slot_reset(slot);

				return(CACKEY_PCSC_E_NEEDLOGIN);
			}

			if (send_ret == CACKEY_PCSC_E_TOKENABSENT) {
................................................................................
	if (outbuflen > _POSIX_SSIZE_MAX) {
		CACKEY_DEBUG_PRINTF("Outbuflen exceeds maximum value, returning in failure. (max = %li, outbuflen = %lu)", (long) _POSIX_SSIZE_MAX, (unsigned long) outbuflen);

		return(-1);
	}
#  endif
#endif

	/* We must remove the "7C" tag to get to the signature */
	switch (id_type) {
		case CACKEY_ID_TYPE_PIV:
			outbuf_len = retval;
			outbuf_p = cackey_read_bertlv_tag(outbuf, &outbuf_len, 0x7C, NULL,  &outbuf_len);
			if (outbuf_p == NULL) {
				CACKEY_DEBUG_PRINTF("Response from PIV for GENERATE AUTHENTICATION was not a 0x7C tag, returning in failure");

				return(-1);
			}

			retval = outbuf_len;

			outbuf_len = retval;
			outbuf_p = cackey_read_bertlv_tag(outbuf, &outbuf_len, 0x82, NULL,  &outbuf_len);
			if (outbuf_p == NULL) {
				CACKEY_DEBUG_PRINTF("Response from PIV for GENERATE AUTHENTICATION was not a 0x82 within a 0x7C tag, returning in failure");

				return(-1);
			}

			retval = outbuf_len;

			break;
		case CACKEY_ID_TYPE_CAC:
		case CACKEY_ID_TYPE_CERT_ONLY:
			break;
	}

	/* Unpad reply */
	if (unpadOutput) {
		if (retval < 3) {
			CACKEY_DEBUG_PRINTF("Reply is too small, we are not able to unpad -- passing back and hoping for the best!");

			CACKEY_DEBUG_PRINTF("Returning in success, retval = %li (bytes)", (long) retval);
................................................................................
 *     ...
 *
 * NOTES
 *     ...
 *
 */
static cackey_ret cackey_login(struct cackey_slot *slot, unsigned char *pin, unsigned long pin_len, int *tries_remaining_p) {
	struct cackey_pcsc_identity *pcsc_identities;
	unsigned char cac_pin[8] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
	unsigned long num_certs;
	uint16_t response_code;
	int tries_remaining;
	int send_ret;
	int key_reference = 0x00;

	/* Indicate that we do not know about how many tries are remaining */
	if (tries_remaining_p) {
		*tries_remaining_p = -1;
	}

	/* Apparently, CAC PINs are *EXACTLY* 8 bytes long -- pad with 0xFF if too short */
	if (pin_len >= 8) {
		memcpy(cac_pin, pin, 8);
	} else {
		memcpy(cac_pin, pin, pin_len);
	}

	/* Reject PINs which are too short */
	if (pin_len < 5) {
		CACKEY_DEBUG_PRINTF("Rejecting PIN which is too short (length = %lu, must be atleast 5)", pin_len);

		return(CACKEY_PCSC_E_BADPIN);
	}

	/* PIV authentication uses a "key_reference" of 0x80 */
	pcsc_identities = cackey_read_certs(slot, NULL, &num_certs);
	if (num_certs > 0 && pcsc_identities != NULL) {
		switch (pcsc_identities[0].id_type) {
			case CACKEY_ID_TYPE_PIV:
				CACKEY_DEBUG_PRINTF("We have PIV card, so we will attempt to authenticate using the PIV Application key reference");

				key_reference = 0x80;
				break;
			default:
				break;
		}

		cackey_free_certs(pcsc_identities, num_certs, 1);
	}

	/* Issue PIN Verify */
	send_ret = cackey_send_apdu(slot, GSCIS_CLASS_ISO7816, GSCIS_INSTR_VERIFY, 0x00, key_reference, sizeof(cac_pin), cac_pin, 0x00, &response_code, NULL, NULL);

	if (send_ret != CACKEY_PCSC_S_OK) {
		if ((response_code & 0x63C0) == 0x63C0) {
			tries_remaining = (response_code & 0xF);

			CACKEY_DEBUG_PRINTF("PIN Verification failed, %i tries remaining", tries_remaining);

			if (tries_remaining_p) {
................................................................................
 *
 * NOTES
 *     ...
 *
 */
static cackey_ret cackey_token_present(struct cackey_slot *slot) {
	cackey_ret pcsc_connect_ret;
	DWORD reader_len = 0, state = 0, protocol = 0, atr_len;
	BYTE atr[MAX_ATR_SIZE];
	LONG status_ret, scard_reconn_ret;

	CACKEY_DEBUG_PRINTF("Called.");

	if (slot->internal) {
		CACKEY_DEBUG_PRINTF("Returning token present (internal token)");

		return(CACKEY_PCSC_S_TOKENPRESENT);
	}

	pcsc_connect_ret = cackey_connect_card(slot);
	if (pcsc_connect_ret != CACKEY_PCSC_S_OK) {
		CACKEY_DEBUG_PRINTF("Unable to connect to card, returning token absent");

		return(CACKEY_PCSC_E_TOKENABSENT);
	}

	CACKEY_DEBUG_PRINTF("Calling SCardStatus() to determine card status");

	atr_len = sizeof(atr);
	status_ret = SCardStatus(slot->pcsc_card, NULL, &reader_len, &state, &protocol, atr, &atr_len);

	if (status_ret == SCARD_E_INVALID_HANDLE) {
		CACKEY_DEBUG_PRINTF("SCardStatus() returned SCARD_E_INVALID_HANDLE, marking is not already connected and trying again");
		cackey_mark_slot_reset(slot);
................................................................................
		pcsc_connect_ret = cackey_connect_card(slot);
		if (pcsc_connect_ret != CACKEY_PCSC_S_OK) {
			CACKEY_DEBUG_PRINTF("Unable to connect to card, returning token absent");

			return(CACKEY_PCSC_E_TOKENABSENT);
		}

		CACKEY_DEBUG_PRINTF("Calling SCardStatus() again");

		atr_len = sizeof(atr);
		status_ret = SCardStatus(slot->pcsc_card, NULL, &reader_len, &state, &protocol, atr, &atr_len);
	}

	if (status_ret != SCARD_S_SUCCESS) {
		cackey_mark_slot_reset(slot);

		if (status_ret == SCARD_W_RESET_CARD) {
			CACKEY_DEBUG_PRINTF("Reset required, please hold...");

			scard_reconn_ret = cackey_reconnect_card(slot, SCARD_PROTOCOL_T0 | SCARD_PROTOCOL_T1);
			if (scard_reconn_ret == SCARD_S_SUCCESS) {



				/* Re-establish transaction, if it was present */
				if (slot->transaction_depth > 0) {
					slot->transaction_depth--;
					slot->transaction_need_hw_lock = 1;
					cackey_begin_transaction(slot);
				}

................................................................................

				CACKEY_DEBUG_PRINTF(" ... returning %lu (%p/%lu)", (unsigned long) *((CK_BBOOL *) pValue), pValue, (unsigned long) ulValueLen);

				break;
			case CKA_LABEL:
				CACKEY_DEBUG_PRINTF("Requesting attribute CKA_LABEL (0x%08lx) ...", (unsigned long) curr_attr_type);

				if (identity->id_type == CACKEY_ID_TYPE_PIV) {
					pValue = identity->card.piv.label;
					ulValueLen = strlen(pValue);
				} else {
					ulValueLen = snprintf((char *) ucTmpBuf, sizeof(ucTmpBuf), "Identity #%lu", (unsigned long) identity_num);
					pValue = ucTmpBuf;

					if (ulValueLen >= sizeof(ucTmpBuf)) {
						ulValueLen = 0;
						pValue = NULL;
					}
				}

				CACKEY_DEBUG_PRINTF(" ... returning (%p/%lu)", pValue, (unsigned long) ulValueLen);

				break;
			case CKA_VALUE:
				CACKEY_DEBUG_PRINTF("Requesting attribute CKA_VALUE (0x%08lx) ...", (unsigned long) curr_attr_type);
................................................................................

			cackey_free_certs(identities[id_idx].pcsc_identity, 1, 1);
		}
	}

	free(identities);
}

static unsigned long cackey_read_dod_identities(struct cackey_identity *identities, unsigned long num_dod_certs) {
	unsigned long cert_idx, id_idx = 0;

	if (identities == NULL) {
		return(num_dod_certs * 3);
	}

	for (cert_idx = 0; cert_idx < num_dod_certs; cert_idx++) {
		identities[id_idx].pcsc_identity = NULL;
		identities[id_idx].attributes = cackey_get_attributes(CKO_CERTIFICATE, &extra_certs[cert_idx], 0xf000 | cert_idx, &identities[id_idx].attributes_count);
		id_idx++;

		identities[id_idx].pcsc_identity = NULL;
		identities[id_idx].attributes = cackey_get_attributes(CKO_PUBLIC_KEY, &extra_certs[cert_idx], 0xf000 | cert_idx, &identities[id_idx].attributes_count);
		id_idx++;

		identities[id_idx].pcsc_identity = NULL;
		identities[id_idx].attributes = cackey_get_attributes(CKO_NETSCAPE_TRUST, &extra_certs[cert_idx], 0xf000 | cert_idx, &identities[id_idx].attributes_count);
		id_idx++;
	}

	return(id_idx);
}

static struct cackey_identity *cackey_read_identities(struct cackey_slot *slot, unsigned long *ids_found) {
	struct cackey_pcsc_identity *pcsc_identities;
	struct cackey_identity *identities;
	unsigned long num_ids, id_idx, curr_id_type;
	unsigned long num_certs, num_dod_certs, cert_idx;
	int include_extra_certs = 0, include_dod_certs;

	CACKEY_DEBUG_PRINTF("Called.");

	if (ids_found == NULL) {
		CACKEY_DEBUG_PRINTF("Error.  ids_found is NULL");

		return(NULL);
	}

#ifdef CACKEY_CARD_SLOT_INCLUDE_EXTRA_CERTS
	include_extra_certs = 1;
#endif

	if (getenv("CACKEY_DOD_CERTS_ON_HW_SLOTS") != NULL) {
		include_extra_certs = 1;
	}

	if (getenv("CACKEY_NO_DOD_CERTS_ON_HW_SLOTS") != NULL) {
		include_extra_certs = 0;
	}

#ifdef CACKEY_NO_EXTRA_CERTS
	if (getenv("CACKEY_EXTRA_CERTS") != NULL) {
		include_dod_certs = 1;
	} else {
		include_dod_certs = 0;
	}
#else
	if (getenv("CACKEY_NO_EXTRA_CERTS") != NULL) {
		include_dod_certs = 0;
	} else {
		include_dod_certs = 1;
	}
#endif

	if (include_dod_certs) {
		num_dod_certs = sizeof(extra_certs) / sizeof(extra_certs[0]);
	} else {
		num_dod_certs = 0;
	}


	if (slot->internal) {
		num_ids = cackey_read_dod_identities(NULL, num_dod_certs);

		if (num_ids != 0) {
			identities = malloc(num_ids * sizeof(*identities));

			cackey_read_dod_identities(identities, num_dod_certs);
		} else {

			identities = NULL;
		}

		*ids_found = num_ids;


		return(identities);
	}

	pcsc_identities = cackey_read_certs(slot, NULL, &num_certs);
	if (pcsc_identities != NULL) {
		/* Convert number of Certs to number of objects */
		num_ids = (CKO_PRIVATE_KEY - CKO_CERTIFICATE + 1) * num_certs;

		if (include_extra_certs) {
			num_ids += cackey_read_dod_identities(NULL, num_dod_certs);
		}

		identities = malloc(num_ids * sizeof(*identities));

		/* Add certificates, public keys, and private keys from the smartcard */
		id_idx = 0;
		for (cert_idx = 0; cert_idx < num_certs; cert_idx++) {
			for (curr_id_type = CKO_CERTIFICATE; curr_id_type <= CKO_PRIVATE_KEY; curr_id_type++) {
................................................................................

				identities[id_idx].pcsc_identity->certificate = malloc(pcsc_identities[cert_idx].certificate_len);
				memcpy(identities[id_idx].pcsc_identity->certificate, pcsc_identities[cert_idx].certificate, pcsc_identities[cert_idx].certificate_len);

				id_idx++;
			}
		}

		if (include_extra_certs) {
			CACKEY_DEBUG_PRINTF("Including US Government Certificates on hardware slot");

			cackey_read_dod_identities(identities + id_idx, num_dod_certs);
		}

		cackey_free_certs(pcsc_identities, num_certs, 1);

		*ids_found = num_ids;















		return(identities);
	}


	*ids_found = 0;
	return(NULL);
}

CK_DEFINE_FUNCTION(CK_RV, C_Initialize)(CK_VOID_PTR pInitArgs) {
	CK_C_INITIALIZE_ARGS CK_PTR args;
	uint32_t idx, highest_slot;
	int mutex_init_ret;
	int include_dod_certs;

	CACKEY_DEBUG_PRINTF("Called.");

	if (cackey_initialized) {
		CACKEY_DEBUG_PRINTF("Error.  Already initialized.");

		return(CKR_CRYPTOKI_ALREADY_INITIALIZED);
................................................................................
		cackey_slots[idx].active = 0;
		cackey_slots[idx].pcsc_reader = NULL;
		cackey_slots[idx].transaction_depth = 0;
		cackey_slots[idx].transaction_need_hw_lock = 0;
		cackey_slots[idx].slot_reset = 0;
		cackey_slots[idx].token_flags = 0;
		cackey_slots[idx].label = NULL;
		cackey_slots[idx].internal = 0;
	}

#ifdef CACKEY_NO_EXTRA_CERTS
	if (getenv("CACKEY_EXTRA_CERTS") != NULL) {
		include_dod_certs = 1;
	} else {
		include_dod_certs = 0;
	}
#else
	if (getenv("CACKEY_NO_EXTRA_CERTS") != NULL) {
		include_dod_certs = 0;
	} else {
		include_dod_certs = 1;
	}
#endif

	if (include_dod_certs == 0) {
		CACKEY_DEBUG_PRINTF("Asked not to include DoD certificates");
	} else {
		highest_slot = (sizeof(cackey_slots) / sizeof(cackey_slots[0])) - 1;

		CACKEY_DEBUG_PRINTF("Including DoD certs in slot %lu", (unsigned long) highest_slot);

		cackey_slots[highest_slot].active = 1;
		cackey_slots[highest_slot].internal = 1;
		cackey_slots[highest_slot].label = (unsigned char *) "US Government Certificates";
		cackey_slots[highest_slot].pcsc_reader = "CACKey";
		cackey_slots[highest_slot].token_flags = 0;
	}

	cackey_initialized = 1;

	if (!cackey_biglock_init) {
		mutex_init_ret = cackey_mutex_create(&cackey_biglock);

................................................................................
			CACKEY_DEBUG_PRINTF("Error.  Mutex initialization failed.");

			return(CKR_CANT_LOCK);
		}

		cackey_biglock_init = 1;
	}

	/* Define a command to prompt user for a PIN */
#ifdef CACKEY_PIN_COMMAND_DEFAULT
	cackey_pin_command = CACKEY_PIN_COMMAND_DEFAULT_XSTR(CACKEY_PIN_COMMAND_DEFAULT);
#endif

#ifdef CACKEY_PIN_COMMAND_XONLY_DEFAULT
	if (getenv("DISPLAY") != NULL) {
		cackey_pin_command = CACKEY_PIN_COMMAND_DEFAULT_XSTR(CACKEY_PIN_COMMAND_XONLY_DEFAULT);
	}
#endif

	if (getenv("CACKEY_PIN_COMMAND") != NULL) {
		cackey_pin_command = getenv("CACKEY_PIN_COMMAND");
	}

	if (getenv("CACKEY_PIN_COMMAND_XONLY") != NULL && getenv("DISPLAY") != NULL) {
		cackey_pin_command = getenv("CACKEY_PIN_COMMAND_XONLY");
	}

	CACKEY_DEBUG_PRINTF("Returning CKR_OK (%i)", CKR_OK);

	return(CKR_OK);
}

CK_DEFINE_FUNCTION(CK_RV, C_Finalize)(CK_VOID_PTR pReserved) {
................................................................................
			C_CloseSession(idx);
		}
	}

	cackey_slots_disconnect_all();

	for (idx = 0; idx < (sizeof(cackey_slots) / sizeof(cackey_slots[0])); idx++) {
		if (cackey_slots[idx].internal) {
			continue;
		}

		if (cackey_slots[idx].pcsc_reader) {
			free(cackey_slots[idx].pcsc_reader);
		}

		if (cackey_slots[idx].cached_certs) {
			cackey_free_certs(cackey_slots[idx].cached_certs, cackey_slots[idx].cached_certs_count, 1);

			cackey_slots[idx].cached_certs = NULL;
		}
	}

	cackey_pcsc_disconnect();

	cackey_initialized = 0;

	CACKEY_DEBUG_PRINTF("Returning CKR_OK (%i)", CKR_OK);
................................................................................
	return(CKR_OK);
}

/*
 * Process list of readers, and create mapping between reader name and slot ID
 */
CK_DEFINE_FUNCTION(CK_RV, C_GetSlotList)(CK_BBOOL tokenPresent, CK_SLOT_ID_PTR pSlotList, CK_ULONG_PTR pulCount) {
	static int first_call = 1;
	int mutex_retval;
	int pcsc_connect_ret;
	CK_ULONG count, slot_count = 0, currslot, slot_idx;
	char *pcsc_readers, *pcsc_readers_s, *pcsc_readers_e;
	DWORD pcsc_readers_len;
	LONG scard_listreaders_ret;
	size_t curr_reader_len;
	int slot_reset;

	CACKEY_DEBUG_PRINTF("Called.");

	if (pulCount == NULL) {
		CACKEY_DEBUG_PRINTF("Error. pulCount is NULL.");

		return(CKR_ARGUMENTS_BAD);
................................................................................
	if (mutex_retval != 0) {
		CACKEY_DEBUG_PRINTF("Error.  Locking failed.");

		return(CKR_GENERAL_ERROR);
	}

	/* Clear list of slots */
	slot_reset = 0;
	if (pSlotList) {
		if (first_call) {
			first_call = 0;

			slot_reset = 1;
		}

		/* If any of the slots have been reset then purge all information and check again */
		for (currslot = 0; currslot < (sizeof(cackey_slots) / sizeof(cackey_slots[0])); currslot++) {
			if (cackey_slots[currslot].internal) {
				continue;
			}

			if (!cackey_slots[currslot].active) {
				continue;
			}

			if (cackey_slots[currslot].slot_reset) {
				slot_reset = 1;

				break;
			}
		}

		if (slot_reset) {
			CACKEY_DEBUG_PRINTF("Purging all slot information.");

			/* Only update the list of slots if we are actually being supply the slot information */
			cackey_slots_disconnect_all();

			for (currslot = 0; currslot < (sizeof(cackey_slots) / sizeof(cackey_slots[0])); currslot++) {
				if (cackey_slots[currslot].internal) {
					continue;
				}

				if (cackey_slots[currslot].pcsc_reader) {
					free(cackey_slots[currslot].pcsc_reader);

					cackey_slots[currslot].pcsc_reader = NULL;
				}

				if (cackey_slots[currslot].label) {
					free(cackey_slots[currslot].label);

					cackey_slots[currslot].label = NULL;
				}

				cackey_slots[currslot].active = 0;
			}
		} else {
			
		}
	}

	/* Determine list of readers */
	pcsc_connect_ret = cackey_pcsc_connect();
/* XXX: CAN HANG HERE ! */
	if (pcsc_connect_ret != CACKEY_PCSC_S_OK) {
		CACKEY_DEBUG_PRINTF("Connection to PC/SC failed, assuming no slots");

		slot_count = 0;
	} else {
		pcsc_readers_len = 0;

................................................................................
			scard_listreaders_ret = SCardListReaders(*cackey_pcsc_handle, NULL, pcsc_readers, &pcsc_readers_len);
			if (scard_listreaders_ret == SCARD_S_SUCCESS) {
				pcsc_readers_e = pcsc_readers + pcsc_readers_len;

				/* Start with Slot ID 1, to avoid a bug in GDM on RHEL */
				/* Bug 594911: https://bugzilla.redhat.com/show_bug.cgi?id=594911 */
				currslot = 1;
				slot_count = 0;
				while (pcsc_readers < pcsc_readers_e) {
					/* Find next available slot */
					for (; currslot < (sizeof(cackey_slots) / sizeof(cackey_slots[0])); currslot++) {
						if (!cackey_slots[currslot].active) {
							break;
						}
					}

					curr_reader_len = strlen(pcsc_readers);

					if ((pcsc_readers + curr_reader_len) > pcsc_readers_e) {
						break;
					}

					if (curr_reader_len == 0) {
................................................................................

					if (currslot >= (sizeof(cackey_slots) / sizeof(cackey_slots[0]))) {
						CACKEY_DEBUG_PRINTF("Found more readers than slots are available!");

						break;
					}

					CACKEY_DEBUG_PRINTF("Found reader: %s (currslot = %lu)", pcsc_readers, (unsigned long) currslot);

					/* Only update the list of slots if we are actually being asked supply the slot information */
					if (pSlotList) {
						if (slot_reset) {
							cackey_slots[currslot].active = 1;
							cackey_slots[currslot].internal = 0;
							cackey_slots[currslot].pcsc_reader = strdup(pcsc_readers);
							cackey_slots[currslot].pcsc_card_connected = 0;
							cackey_slots[currslot].transaction_depth = 0;
							cackey_slots[currslot].transaction_need_hw_lock = 0;
							cackey_slots[currslot].token_flags = 0;
							cackey_slots[currslot].label = NULL;

							cackey_mark_slot_reset(&cackey_slots[currslot]);
						}
					} else {
						if (!cackey_slots[currslot].active) {
							/* Artificially increase the number of active slots by what will become active */
							CACKEY_DEBUG_PRINTF("Found in-active slot %lu, but it will be active after a reset -- marking as active for accounting purposes", (unsigned long) currslot);

							slot_count++;
						}
					}
					currslot++;

					pcsc_readers += curr_reader_len + 1;
				}

				for (currslot = 0; currslot < (sizeof(cackey_slots) / sizeof(cackey_slots[0])); currslot++) {
					if (cackey_slots[currslot].active) {
						CACKEY_DEBUG_PRINTF("Found active slot %lu, reader = %s", (unsigned long) currslot, cackey_slots[currslot].pcsc_reader);

						slot_count++;
					}
				}
			} else {
				CACKEY_DEBUG_PRINTF("Second call to SCardListReaders failed, return %s/%li", CACKEY_DEBUG_FUNC_SCARDERR_TO_STR(scard_listreaders_ret), (long) scard_listreaders_ret);
			}

			free(pcsc_readers_s);
		} else {
................................................................................
		return(CKR_OK);
	}

	count = *pulCount;
	if (count < slot_count) {
		CACKEY_DEBUG_PRINTF("Error. User allocated %lu entries, but we have %lu entries.", count, slot_count);

		CACKEY_DEBUG_PRINTF("Returning CKR_BUFFER_TOO_SMALL");

		return(CKR_BUFFER_TOO_SMALL);	
	}



	mutex_retval = cackey_mutex_lock(cackey_biglock);
	if (mutex_retval != 0) {
		CACKEY_DEBUG_PRINTF("Error.  Locking failed.");

		return(CKR_GENERAL_ERROR);
	}

	slot_idx = 0;
	for (currslot = 0; (currslot < (sizeof(cackey_slots) / sizeof(cackey_slots[0]))); currslot++) {
		if (!cackey_slots[currslot].active) {
			continue;
		}

		if (slot_idx >= count) {
			CACKEY_DEBUG_PRINTF("Error. User allocated %lu entries, but we just tried to write to the %lu index -- ignoring", count, slot_idx);

			continue;
		}

		pSlotList[slot_idx] = currslot;
		slot_idx++;
	}

	mutex_retval = cackey_mutex_unlock(cackey_biglock);
	if (mutex_retval != 0) {
		CACKEY_DEBUG_PRINTF("Error.  Unlocking failed.");

		return(CKR_GENERAL_ERROR);
	}

	*pulCount = slot_count;

	CACKEY_DEBUG_PRINTF("Returning CKR_OK (%i).  Found %lu readers.", CKR_OK, (unsigned long) slot_count);

	return(CKR_OK);
................................................................................
		CACKEY_DEBUG_PRINTF("Error. Invalid slot requested (%lu), slot not currently active", slotID);

		cackey_mutex_unlock(cackey_biglock);

		return(CKR_SLOT_ID_INVALID);
	}

	pInfo->flags = CKF_HW_SLOT;

	if (!cackey_slots[slotID].internal) {
		pInfo->flags |= CKF_REMOVABLE_DEVICE;
	}

	if (cackey_token_present(&cackey_slots[slotID]) == CACKEY_PCSC_S_TOKENPRESENT) {
		pInfo->flags |= CKF_TOKEN_PRESENT;
	}

	bytes_to_copy = strlen(cackey_slots[slotID].pcsc_reader);
	if (sizeof(pInfo->manufacturerID) < bytes_to_copy) {
................................................................................
	pInfo->hardwareVersion.major = (cackey_getversion() >> 16) & 0xff;
	pInfo->hardwareVersion.minor = (cackey_getversion() >> 8) & 0xff;

	pInfo->firmwareVersion.major = 0x00;
	pInfo->firmwareVersion.minor = 0x00;

	pInfo->flags = CKF_WRITE_PROTECTED | CKF_USER_PIN_INITIALIZED | CKF_TOKEN_INITIALIZED | cackey_slots[slotID].token_flags;

	if (cackey_pin_command != NULL) {
		pInfo->flags |= CKF_PROTECTED_AUTHENTICATION_PATH;
	}

	pInfo->ulMaxSessionCount = (sizeof(cackey_sessions) / sizeof(cackey_sessions[0])) - 1;
	pInfo->ulSessionCount = CK_UNAVAILABLE_INFORMATION;
	pInfo->ulMaxRwSessionCount = 0;
	pInfo->ulRwSessionCount = CK_UNAVAILABLE_INFORMATION;
	pInfo->ulMaxPinLen = 128;
	pInfo->ulMinPinLen = 0;
................................................................................
	}

	CACKEY_DEBUG_PRINTF("Returning CKR_FUNCTION_NOT_SUPPORTED (%i)", CKR_FUNCTION_NOT_SUPPORTED);

	return(CKR_FUNCTION_NOT_SUPPORTED);
}

CK_DEFINE_FUNCTION(CK_RV, _C_LoginMutexArg)(CK_SESSION_HANDLE hSession, CK_USER_TYPE userType, CK_UTF8CHAR_PTR pPin, CK_ULONG ulPinLen, int lock_mutex) {
	CK_SLOT_ID slotID;
	FILE *pinfd;
	char *pincmd, pinbuf[64], *fgets_ret;
	int mutex_retval;
	int tries_remaining;
	int login_ret;
	int pclose_ret;

	CACKEY_DEBUG_PRINTF("Called.");

	if (!cackey_initialized) {
		CACKEY_DEBUG_PRINTF("Error.  Not initialized.");

		return(CKR_CRYPTOKI_NOT_INITIALIZED);
................................................................................

	if (userType != CKU_USER) {
		CACKEY_DEBUG_PRINTF("Error.  We only support USER mode, asked for %lu mode.", (unsigned long) userType)

		return(CKR_USER_TYPE_INVALID);
	}

	if (lock_mutex) {
		mutex_retval = cackey_mutex_lock(cackey_biglock);
		if (mutex_retval != 0) {
			CACKEY_DEBUG_PRINTF("Error.  Locking failed.");

			return(CKR_GENERAL_ERROR);
		}
	}

	if (!cackey_sessions[hSession].active) {
		if (lock_mutex) {
			cackey_mutex_unlock(cackey_biglock);
		}

		CACKEY_DEBUG_PRINTF("Error.  Session not active.");
		
		return(CKR_SESSION_HANDLE_INVALID);
	}

	slotID = cackey_sessions[hSession].slotID;

	if (slotID < 0 || slotID >= (sizeof(cackey_slots) / sizeof(cackey_slots[0]))) {
		CACKEY_DEBUG_PRINTF("Error. Invalid slot requested (%lu), outside of valid range", slotID);

		if (lock_mutex) {
			cackey_mutex_unlock(cackey_biglock);
		}

		return(CKR_GENERAL_ERROR);
	}

	if (cackey_slots[slotID].active == 0) {
		CACKEY_DEBUG_PRINTF("Error. Invalid slot requested (%lu), slot not currently active", slotID);

		if (lock_mutex) {
			cackey_mutex_unlock(cackey_biglock);
		}

		return(CKR_GENERAL_ERROR);
	}

	pincmd = cackey_pin_command;
	if (pincmd != NULL) {
		CACKEY_DEBUG_PRINTF("CACKEY_PIN_COMMAND = %s", pincmd);

		if (pPin != NULL) {
			CACKEY_DEBUG_PRINTF("Protected authentication path in effect and PIN provided !?");
		}

		pinfd = popen(pincmd, "r");
		if (pinfd == NULL) {
			CACKEY_DEBUG_PRINTF("Error.  %s: Unable to run", pincmd);

			if (lock_mutex) {
				cackey_mutex_unlock(cackey_biglock);
			}

			CACKEY_DEBUG_PRINTF("Returning CKR_PIN_INCORRECT (%i)", (int) CKR_PIN_INCORRECT);

			return(CKR_PIN_INCORRECT);
		}

		fgets_ret = fgets(pinbuf, sizeof(pinbuf), pinfd);
		if (fgets_ret == NULL) {
			pinbuf[0] = '\0';
		}

		pclose_ret = pclose(pinfd);
		if (pclose_ret == -1 && errno == ECHILD) {
			CACKEY_DEBUG_PRINTF("Notice.  pclose() indicated it could not get the status of the child, assuming it succeeeded !");

			pclose_ret = 0;
		}

		if (pclose_ret != 0) {
			CACKEY_DEBUG_PRINTF("Error.  %s: exited with non-zero status of %i", pincmd, pclose_ret);

			if (lock_mutex) {
				cackey_mutex_unlock(cackey_biglock);
			}

			CACKEY_DEBUG_PRINTF("Returning CKR_PIN_INCORRECT (%i)", (int) CKR_PIN_INCORRECT);

			return(CKR_PIN_INCORRECT);
		}

		if (strlen(pinbuf) < 1) {
			CACKEY_DEBUG_PRINTF("Error.  %s: returned no data", pincmd);

			if (lock_mutex) {
				cackey_mutex_unlock(cackey_biglock);
			}

			CACKEY_DEBUG_PRINTF("Returning CKR_PIN_INCORRECT (%i)", (int) CKR_PIN_INCORRECT);

			return(CKR_PIN_INCORRECT);
		}

		if (pinbuf[strlen(pinbuf) - 1] == '\n') {
			pinbuf[strlen(pinbuf) - 1] = '\0';
		}

		pPin = (CK_UTF8CHAR_PTR) pinbuf;
		ulPinLen = strlen(pinbuf);
	}

	login_ret = cackey_login(&cackey_slots[slotID], pPin, ulPinLen, &tries_remaining);
	if (login_ret != CACKEY_PCSC_S_OK) {
		if (lock_mutex) {
			cackey_mutex_unlock(cackey_biglock);
		}

		if (login_ret == CACKEY_PCSC_E_LOCKED) {
			CACKEY_DEBUG_PRINTF("Error.  Token is locked.");

			cackey_slots[slotID].token_flags |= CKF_USER_PIN_LOCKED;

			CACKEY_DEBUG_PRINTF("Returning CKR_PIN_LOCKED (%i)", (int) CKR_PIN_LOCKED);

			return(CKR_PIN_LOCKED);
		} else if (login_ret == CACKEY_PCSC_E_BADPIN) {
			CACKEY_DEBUG_PRINTF("Error.  Invalid PIN.");

			cackey_slots[slotID].token_flags |= CKF_USER_PIN_COUNT_LOW;

			if (tries_remaining == 1) {
				cackey_slots[slotID].token_flags |= CKF_USER_PIN_FINAL_TRY;
			}

			CACKEY_DEBUG_PRINTF("Returning CKR_PIN_INCORRECT (%i)", (int) CKR_PIN_INCORRECT);

			return(CKR_PIN_INCORRECT);
		}

		CACKEY_DEBUG_PRINTF("Error.  Unknown error returned from cackey_login() (%i)", login_ret);

		return(CKR_GENERAL_ERROR);
	}

	cackey_slots[slotID].token_flags &= ~(CKF_USER_PIN_LOCKED | CKF_USER_PIN_COUNT_LOW | CKF_LOGIN_REQUIRED | CKF_USER_PIN_FINAL_TRY);

	cackey_sessions[hSession].state = CKS_RO_USER_FUNCTIONS;

	if (lock_mutex) {
		mutex_retval = cackey_mutex_unlock(cackey_biglock);
		if (mutex_retval != 0) {
			CACKEY_DEBUG_PRINTF("Error.  Unlocking failed.");

			return(CKR_GENERAL_ERROR);
		}
	}

	CACKEY_DEBUG_PRINTF("Returning CKR_OK (%i)", CKR_OK);

	return(CKR_OK);
}

CK_DEFINE_FUNCTION(CK_RV, C_Login)(CK_SESSION_HANDLE hSession, CK_USER_TYPE userType, CK_UTF8CHAR_PTR pPin, CK_ULONG ulPinLen) {
	return(_C_LoginMutexArg(hSession, userType, pPin, ulPinLen, 1));
}

CK_DEFINE_FUNCTION(CK_RV, C_Logout)(CK_SESSION_HANDLE hSession) {
	CK_SLOT_ID slotID;
	int mutex_retval;

	CACKEY_DEBUG_PRINTF("Called.");

................................................................................

		cackey_mutex_unlock(cackey_biglock);

		return(CKR_GENERAL_ERROR);
	}

	cackey_sessions[hSession].state = CKS_RO_PUBLIC_SESSION;


	mutex_retval = cackey_mutex_unlock(cackey_biglock);
	if (mutex_retval != 0) {
		CACKEY_DEBUG_PRINTF("Error.  Unlocking failed.");

		return(CKR_GENERAL_ERROR);
	}
................................................................................

CK_DEFINE_FUNCTION(CK_RV, C_FindObjects)(CK_SESSION_HANDLE hSession, CK_OBJECT_HANDLE_PTR phObject, CK_ULONG ulMaxObjectCount, CK_ULONG_PTR pulObjectCount) {
	struct cackey_identity *curr_id;
	CK_ATTRIBUTE *curr_attr;
	CK_ULONG curr_id_idx, curr_out_id_idx, curr_attr_idx, sess_attr_idx;
	CK_ULONG matched_count, prev_matched_count;
	int mutex_retval;
#ifdef CACKEY_DEBUG_SEARCH_SPEEDTEST
	struct timeval start, end;
	uint64_t start_int, end_int;
#endif

	CACKEY_DEBUG_PRINTF("Called.");

	if (!cackey_initialized) {
		CACKEY_DEBUG_PRINTF("Error.  Not initialized.");

		return(CKR_CRYPTOKI_NOT_INITIALIZED);
................................................................................
	if (!cackey_sessions[hSession].search_active) {
		cackey_mutex_unlock(cackey_biglock);

		CACKEY_DEBUG_PRINTF("Error.  Search not active.");
		
		return(CKR_OPERATION_NOT_INITIALIZED);
	}

#ifdef CACKEY_DEBUG_SEARCH_SPEEDTEST
	gettimeofday(&start, NULL);
#endif

	curr_out_id_idx = 0;
	for (curr_id_idx = cackey_sessions[hSession].search_curr_id; curr_id_idx < cackey_sessions[hSession].identities_count && ulMaxObjectCount; curr_id_idx++) {
		curr_id = &cackey_sessions[hSession].identities[curr_id_idx];

		CACKEY_DEBUG_PRINTF("Processing identity:%lu", (unsigned long) curr_id_idx);

................................................................................
			curr_out_id_idx++;
		} else {
			CACKEY_DEBUG_PRINTF("  ... Not all %i (only found %i) attributes checked for found, not adding identity:%i", (int) cackey_sessions[hSession].search_query_count, (int) matched_count, (int) curr_id_idx);
		}
	}
	cackey_sessions[hSession].search_curr_id = curr_id_idx;
	*pulObjectCount = curr_out_id_idx;

#ifdef CACKEY_DEBUG_SEARCH_SPEEDTEST
	gettimeofday(&end, NULL);
	start_int = (start.tv_sec * 1000000) + start.tv_usec;
	end_int = (end.tv_sec * 1000000) + end.tv_usec;
	fprintf(stderr, "Search took %lu microseconds\n", (unsigned long) (end_int - start_int));
#endif

	mutex_retval = cackey_mutex_unlock(cackey_biglock);
	if (mutex_retval != 0) {
		CACKEY_DEBUG_PRINTF("Error.  Unlocking failed.");

		return(CKR_GENERAL_ERROR);
	}
................................................................................
		return(CKR_GENERAL_ERROR);
	}

	switch (cackey_sessions[hSession].decrypt_mechanism) {
		case CKM_RSA_PKCS:
			/* Ask card to decrypt */
			buflen = cackey_signdecrypt(&cackey_slots[slotID], cackey_sessions[hSession].decrypt_identity, pEncryptedPart, ulEncryptedPartLen, buf, sizeof(buf), 0, 1);

			if (buflen == CACKEY_PCSC_E_NEEDLOGIN && cackey_pin_command != NULL) {
				if (_C_LoginMutexArg(hSession, CKU_USER, NULL, 0, 0) == CKR_OK) {
					buflen = cackey_signdecrypt(&cackey_slots[slotID], cackey_sessions[hSession].decrypt_identity, pEncryptedPart, ulEncryptedPartLen, buf, sizeof(buf), 0, 1);
				}
			}

			if (buflen < 0) {
				/* Decryption failed. */
				if (buflen == CACKEY_PCSC_E_NEEDLOGIN) {
					retval = CKR_USER_NOT_LOGGED_IN;
				} else if (buflen == CACKEY_PCSC_E_TOKENABSENT) {
					retval = CKR_DEVICE_REMOVED;
				} else {
					CACKEY_DEBUG_PRINTF("Failed to send APDU, error = %li", (long int) buflen);

					retval = CKR_GENERAL_ERROR;
				}
			} else if (((unsigned long) buflen) > *pulPartLen && pPart) {
				/* Decrypted data too large */
				retval = CKR_BUFFER_TOO_SMALL;
			} else {
				if (pPart) {
................................................................................
	}

	switch (cackey_sessions[hSession].sign_mechanism) {
		case CKM_RSA_PKCS:
			/* Ask card to sign */
			CACKEY_DEBUG_PRINTF("Asking to sign from identity %p in session %lu", (void *) cackey_sessions[hSession].sign_identity, (unsigned long) hSession);
			sigbuflen = cackey_signdecrypt(&cackey_slots[slotID], cackey_sessions[hSession].sign_identity, cackey_sessions[hSession].sign_buf, cackey_sessions[hSession].sign_bufused, sigbuf, sizeof(sigbuf), 1, 0);

			if (sigbuflen == CACKEY_PCSC_E_NEEDLOGIN && cackey_pin_command != NULL) {
				if (_C_LoginMutexArg(hSession, CKU_USER, NULL, 0, 0) == CKR_OK) {
					sigbuflen = cackey_signdecrypt(&cackey_slots[slotID], cackey_sessions[hSession].sign_identity, cackey_sessions[hSession].sign_buf, cackey_sessions[hSession].sign_bufused, sigbuf, sizeof(sigbuf), 1, 0);
				}
			}

			if (sigbuflen < 0) {
				/* Signing failed. */
				if (sigbuflen == CACKEY_PCSC_E_NEEDLOGIN) {
					retval = CKR_USER_NOT_LOGGED_IN;
				} else if (sigbuflen == CACKEY_PCSC_E_TOKENABSENT) {
					retval = CKR_DEVICE_REMOVED;