Diff: ctypes.h

Revision:

0:230c10b228ea

Child:

1:9399d44c2b1a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ctypes.h	Fri Oct 07 13:41:08 2011 +0000
@@ -0,0 +1,99 @@
+#ifndef CTYPES_H
+#define CTYPES_H
+
+#ifdef __cplusplus /* If this is a C++ compiler, use C linkage */
+extern "C" {
+#endif
+
+#include <string.h>
+
+#define LITTLE_ENDIAN		1
+
+// platform-specific data types to conform to SV type sizes (Table 14 in IEC 61850-9-2)
+#define CTYPE_BOOLEAN		unsigned char
+#define CTYPE_INT8			char
+#define CTYPE_INT16			short
+#define CTYPE_INT32			int
+#define CTYPE_INT8U			unsigned char
+#define CTYPE_INT16U		unsigned short
+#define CTYPE_INT32U		unsigned int
+#define CTYPE_ENUM			CTYPE_INT32
+#define CTYPE_FLOAT32		float
+#define CTYPE_FLOAT64		double
+#define CTYPE_VISSTRING255	char *
+#define CTYPE_DBPOS			int
+#define CTYPE_QUALITY		CTYPE_INT16U
+#define CTYPE_TIMESTAMP		long long
+
+// sampled value dataset type sizes, in bytes
+#define SV_GET_LENGTH_FLOAT32				4
+#define SV_GET_LENGTH_FLOAT64				8
+#define SV_GET_LENGTH_TIMESTAMP				8
+#define SV_GET_LENGTH_INT16					2
+#define SV_GET_LENGTH_INT32					4
+#define SV_GET_LENGTH_INT16U				2
+#define SV_GET_LENGTH_INT32U				4
+#define SV_GET_LENGTH_VISSTRING255			35
+#define SV_GET_LENGTH_BOOLEAN				1
+#define SV_GET_LENGTH_ENUM					4
+#define SV_GET_LENGTH_QUALITY				4
+#define SV_GET_LENGTH_DBPOS					4
+
+// BER datatype sizes, which are dependent on the actual data
+#define BER_GET_LENGTH_CTYPE_FLOAT32(x)			(SV_GET_LENGTH_FLOAT32 + 1)		// + 1 byte for number of exponent bits
+#define BER_GET_LENGTH_CTYPE_FLOAT64(x)			(SV_GET_LENGTH_FLOAT64 + 1)		// + 1 byte for number of exponent bits
+#define BER_GET_LENGTH_CTYPE_TIMESTAMP(x)		(SV_GET_LENGTH_TIMESTAMP)
+#define BER_GET_LENGTH_CTYPE_INT16(x)			(ber_integer_length((x), SV_GET_LENGTH_INT16))
+#define BER_GET_LENGTH_CTYPE_INT32(x)			(ber_integer_length((x), SV_GET_LENGTH_INT32))
+#define BER_GET_LENGTH_CTYPE_INT16U(x)			(ber_integer_length((x), SV_GET_LENGTH_INT16U))
+#define BER_GET_LENGTH_CTYPE_INT32U(x)			(ber_integer_length((x), SV_GET_LENGTH_INT32U))
+#define BER_GET_LENGTH_CTYPE_VISSTRING255(x)	(SV_GET_LENGTH_VISSTRING255)
+#define BER_GET_LENGTH_CTYPE_BOOLEAN(x)			(SV_GET_LENGTH_BOOLEAN)
+#define BER_GET_LENGTH_CTYPE_ENUM(x)			(ber_integer_length((x), SV_GET_LENGTH_ENUM))
+#define BER_GET_LENGTH_CTYPE_QUALITY(x)			(/*SV_GET_LENGTH_QUALITY*/2 + 1)		// + 1 byte for padding
+#define BER_GET_LENGTH_CTYPE_DBPOS(x)			(SV_GET_LENGTH_DBPOS)
+
+
+#define ASN1_TAG_ARRAY							0x81
+#define ASN1_TAG_STRUCTURE						0x82
+#define ASN1_TAG_BOOLEAN						0x83
+#define ASN1_TAG_BIT_STRING						0x84
+#define ASN1_TAG_INTEGER						0x85
+#define ASN1_TAG_UNSIGNED						0x86
+#define ASN1_TAG_FLOATING_POINT					0x87
+#define ASN1_TAG_REAL							0x88
+#define ASN1_TAG_OCTET_STRING					0x89
+#define ASN1_TAG_VISIBLE_STRING					0x8A
+
+#define QUALITY_UNUSED_BITS						3		// total_bits (16) - used_bits (13) = 3
+
+int ber_integer_length(void *value, int maxLength);
+int ber_encode_integer(unsigned char *bufDst, void *value, int maxLength);
+void ber_decode_integer(unsigned char *buf, int length, void *value, int maxLength);
+
+void reversememcpy(unsigned char *dst, const unsigned char *src, unsigned int len);
+void netmemcpy(void *dst, const void *src, unsigned int len);
+void hostmemcpy(void *dst, const void *src, unsigned int len);
+
+void setTimestamp(CTYPE_TIMESTAMP *t);
+void gse_sv_packet_filter(unsigned char *buf, int len);
+
+struct UtcTime {
+	unsigned char bytes[8];		// format: ssssssssssssssssssssssssssssssssffffffffffffffffffffffffqqqqqqqq
+};
+
+extern unsigned char LOCAL_MAC_ADDRESS[];
+
+struct ethHeaderData {
+	unsigned char destMACAddress[6];	// stored in big-endian format
+	CTYPE_INT16U APPID;
+	CTYPE_INT16U VLAN_ID;
+	CTYPE_INT16U VLAN_PRIORITY;
+};
+
+#ifdef __cplusplus /* If this is a C++ compiler, end C linkage */
+}
+#endif
+
+#endif
+