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Comment:Consolidated slot resetting into a single function.

Updated slot resetting to invalidate slot PC/SC handle.

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SHA1: 1edf82bc1640a144a0001d47009d39cda846b4cb
User & Date: rkeene on 2010-07-23 21:46:17
Other Links: manifest | tags
Context
2010-07-23
21:58
Updated to call SCardDisconnect if we detect a previously connected slot -- this fixes a regression in the previous commit where a smartcard would not function after being inserted, removed, and reinserted check-in: 84aaf35a0e user: rkeene tags: trunk
21:46
Consolidated slot resetting into a single function.

Updated slot resetting to invalidate slot PC/SC handle. check-in: 1edf82bc16 user: rkeene tags: trunk

21:23
Added timing information to debug output

Fixed issue where readers that were removed and readded weren't connected to properly check-in: e4fd58cbb9 user: rkeene tags: trunk

Changes
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Modified cackey.c from [5667b1108e] to [6b202c653c].

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	if (scard_rel_context_ret != SCARD_S_SUCCESS) {
		return(CACKEY_PCSC_E_GENERIC);
	}

	return(CACKEY_PCSC_S_OK);
}

/*
 * SYNPOSIS
 *     void cackey_mark_slot_reset(struct cackey_slot *slot);
 *
 * ARGUMENTS
 *     None
 *
 * RETURN VALUE
 *     None
 *
 * NOTES
 *     This function marks a slot has having been reset, to later be cleaned up.
 *     Cleanup only happens when a PKCS#11 client calls C_FindObjectsInit.
 *
 */
static void cackey_mark_slot_reset(struct cackey_slot *slot) {
	if (slot == NULL) {
		return;
	}

	CACKEY_DEBUG_PRINTF("Called.");

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

	CACKEY_DEBUG_PRINTF("Returning.");

	return;
}

/*
 * SYNPOSIS
 *     LONG cackey_reconnect_card(struct cackey_slot *slot, DWORD default_protocol, LPDWORD selected_protocol);
 *
 * ARGUMENTS
 *     cackey_slot *slot
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		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");
		slot->slot_reset = 1;
		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) {
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			/* End transaction */
			cackey_end_transaction(slot);

			if (respcode == 0x6982) {
				CACKEY_DEBUG_PRINTF("Security status not satisified.  Returning NEEDLOGIN");

				slot->slot_reset = 1;
				cackey_mark_slot_reset(slot);
				slot->token_flags = CKF_LOGIN_REQUIRED;

				return(CACKEY_PCSC_E_NEEDLOGIN);
			}

			if (send_ret == CACKEY_PCSC_E_TOKENABSENT) {
				CACKEY_DEBUG_PRINTF("Token absent.  Returning TOKENABSENT");

				slot->slot_reset = 1;
				cackey_mark_slot_reset(slot);
				slot->token_flags = CKF_LOGIN_REQUIRED;

				return(CACKEY_PCSC_E_TOKENABSENT);
			}

			return(-1);
		}
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	}

	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");
		slot->pcsc_card_connected = 0;
		slot->slot_reset = 1;
		cackey_mark_slot_reset(slot);
		slot->token_flags = CKF_LOGIN_REQUIRED;

		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) {
		slot->slot_reset = 1;
		cackey_mark_slot_reset(slot);
		slot->token_flags = CKF_LOGIN_REQUIRED;

		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 */
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						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].slot_reset = 1;
						cackey_slots[currslot].token_flags = CKF_LOGIN_REQUIRED;
						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 */
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		}

		if (cackey_slots[slotID].label != NULL) {
			free(cackey_slots[slotID].label);
			cackey_slots[slotID].label = NULL;
		}

		cackey_slots[slotID].slot_reset = 0;
		cackey_mark_slot_reset(&cackey_slots[slotID]);
		cackey_slots[slotID].pcsc_card_connected = 0;
		cackey_slots[slotID].token_flags = CKF_LOGIN_REQUIRED;
	}

	if (cackey_sessions[hSession].identities == NULL) {
		cackey_sessions[hSession].identities = cackey_read_identities(&cackey_slots[slotID], &cackey_sessions[hSession].identities_count);
	}

	if (pTemplate != NULL) {
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