Adding big int support (#18)

* Adding big int support Signed-off-by: Sebastian Lukas <[email protected]> * Update cbexigen generator hash and branch Signed-off-by: Kai-Uwe Hermann <[email protected]> * Bump version to 0.2.1 Signed-off-by: Kai-Uwe Hermann <[email protected]> --------- Signed-off-by: Sebastian Lukas <[email protected]> Signed-off-by: Kai-Uwe Hermann <[email protected]> Co-authored-by: Kai-Uwe Hermann <[email protected]>
EVerest · Oct 25, 2024 · 0966194 · 0966194
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commit 0966194
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Showing 31 changed files with 24,482 additions and 24,226 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.14)
 
 project(cb_v2g
-    VERSION 0.1
+    VERSION 0.2.1
     DESCRIPTION "V2GTP EXI library"
     HOMEPAGE_URL "https://github.com/Everest/libcbv2g"
 	LANGUAGES C CXX
@@ -16,7 +16,7 @@ option(CB_V2G_INSTALL "Install the library (shared data might be installed anywa
 
 add_subdirectory(lib)
 
-message(STATUS "library code based on cbexigen generator version: 90c70d0")
+message(STATUS "library code based on cbexigen generator version: 98e3fd3 @ feature/use_big_int_for_integer_fixup")
 
 # tests
 if (CB_V2G_BUILD_TESTS)

diff --git a/include/cbv2g/common/exi_basetypes.h b/include/cbv2g/common/exi_basetypes.h
@@ -42,7 +42,9 @@ extern "C" {
 #define EXI_STRING_MAX_LEN 64
 #define EXI_BYTE_ARRAY_MAX_LEN 350
 
-#define EXI_BASETYPES_MAX_OCTETS_SUPPORTED 10
+// To support EXI integer 8/7 coding, this needs to be 8/7 of the desired
+// size of 25 for EXI representation
+#define EXI_BASETYPES_MAX_OCTETS_SUPPORTED 29
 
 #define EXI_BASETYPES_OCTET_SEQ_FLAG_MASK 0x80
 #define EXI_BASETYPES_OCTET_SEQ_VALUE_MASK 0x7F
@@ -66,13 +68,28 @@ typedef struct
     size_t octets_count;
 } exi_unsigned_t;
 
+typedef struct exi_signed_t
+{
+    exi_unsigned_t data;
+    uint8_t is_negative : 1;
+} exi_signed_t;
+
 typedef char exi_character_t;
 
 int exi_basetypes_convert_to_unsigned(exi_unsigned_t* exi_unsigned, uint32_t value, size_t max_octets);
 int exi_basetypes_convert_64_to_unsigned(exi_unsigned_t* exi_unsigned, uint64_t value);
 
-int exi_basetypes_convert_from_unsigned(exi_unsigned_t* exi_unsigned, uint32_t* value, size_t max_octets);
-int exi_basetypes_convert_64_from_unsigned(exi_unsigned_t* exi_unsigned, uint64_t* value);
+int exi_basetypes_convert_from_unsigned(const exi_unsigned_t* exi_unsigned, uint32_t* value, size_t max_octets);
+int exi_basetypes_convert_64_from_unsigned(const exi_unsigned_t* exi_unsigned, uint64_t* value);
+
+int exi_basetypes_convert_to_signed(exi_signed_t* exi_signed, int32_t value, size_t max_octets);
+int exi_basetypes_convert_64_to_signed(exi_signed_t* exi_signed, int64_t value);
+
+int exi_basetypes_convert_from_signed(const exi_signed_t* exi_unsigned, int32_t* value, size_t max_octets);
+int exi_basetypes_convert_64_from_signed(const exi_signed_t* exi_unsigned, int64_t* value);
+
+int exi_basetypes_convert_bytes_from_unsigned(const exi_unsigned_t* exi_unsigned, uint8_t* data, size_t* data_len, size_t data_size);
+int exi_basetypes_convert_bytes_to_unsigned(exi_unsigned_t* exi_unsigned, const uint8_t* data, size_t data_len);
 
 
 #ifdef __cplusplus

diff --git a/include/cbv2g/common/exi_basetypes_decoder.h b/include/cbv2g/common/exi_basetypes_decoder.h
@@ -88,6 +88,7 @@ int exi_basetypes_decoder_uint_8(exi_bitstream_t* stream, uint8_t* value);
 int exi_basetypes_decoder_uint_16(exi_bitstream_t* stream, uint16_t* value);
 int exi_basetypes_decoder_uint_32(exi_bitstream_t* stream, uint32_t* value);
 int exi_basetypes_decoder_uint_64(exi_bitstream_t* stream, uint64_t* value);
+int exi_basetypes_decoder_unsigned(exi_bitstream_t* stream, exi_unsigned_t* value);
 
 /**
  * \brief       decoder for type integer
@@ -105,6 +106,7 @@ int exi_basetypes_decoder_integer_8(exi_bitstream_t* stream, int8_t* value);
 int exi_basetypes_decoder_integer_16(exi_bitstream_t* stream, int16_t* value);
 int exi_basetypes_decoder_integer_32(exi_bitstream_t* stream, int32_t* value);
 int exi_basetypes_decoder_integer_64(exi_bitstream_t* stream, int64_t* value);
+int exi_basetypes_decoder_signed(exi_bitstream_t* stream, exi_signed_t* value);
 
 /**
  * \brief       decoder for type character array

diff --git a/include/cbv2g/common/exi_basetypes_encoder.h b/include/cbv2g/common/exi_basetypes_encoder.h
@@ -88,6 +88,7 @@ int exi_basetypes_encoder_uint_8(exi_bitstream_t* stream, uint8_t value);
 int exi_basetypes_encoder_uint_16(exi_bitstream_t* stream, uint16_t value);
 int exi_basetypes_encoder_uint_32(exi_bitstream_t* stream, uint32_t value);
 int exi_basetypes_encoder_uint_64(exi_bitstream_t* stream, uint64_t value);
+int exi_basetypes_encoder_unsigned(exi_bitstream_t* stream, const exi_unsigned_t* value);
 
 /**
  * \brief       encoder for type integer
@@ -105,6 +106,7 @@ int exi_basetypes_encoder_integer_8(exi_bitstream_t* stream, int8_t value);
 int exi_basetypes_encoder_integer_16(exi_bitstream_t* stream, int16_t value);
 int exi_basetypes_encoder_integer_32(exi_bitstream_t* stream, int32_t value);
 int exi_basetypes_encoder_integer_64(exi_bitstream_t* stream, int64_t value);
+int exi_basetypes_encoder_signed(exi_bitstream_t* stream, const exi_signed_t* value);
 
 /**
  * \brief       encoder for type exi_character array

diff --git a/include/cbv2g/common/exi_error_codes.h b/include/cbv2g/common/exi_error_codes.h
@@ -57,6 +57,7 @@ extern "C" {
 #define EXI_ERROR__ARRAY_OUT_OF_BOUNDS -110
 #define EXI_ERROR__CHARACTER_BUFFER_TOO_SMALL -111
 #define EXI_ERROR__BYTE_BUFFER_TOO_SMALL -112
+#define EXI_ERROR__ENCODED_INTEGER_SIZE_LARGER_THAN_DESTINATION -113
 
 //      grammar errors -130 to -149
 #define EXI_ERROR__UNKNOWN_GRAMMAR_ID -130