xentara::utils::cbor Namespace Reference

CBOR encoder and decoder. More...

Classes
class	Array
	Header of an array, without the actual elements. More...
struct	BreakTag
	Type used to read and write special value 31 (break) from or to a CBOR stream. More...
class	Decoder
	A class that decodes CBOR data types that includes: unsigned integers, negative integers, byte strings, text strings encoded as UTF-8, simple values and float-point number. More...
class	Encoder
	A class that encodes CBOR data types that includes: unsigned integers, negative integers, byte strings, text strings encoded as UTF8, simple values and float-point number. More...
class	ExtendedDataType
	A CBOR data type with additional information. More...
struct	IndefiniteTag
	Type used to determine whether an array or a map has indefinite length. More...
class	Map
	Header of a map, without the actual key/value pairs. More...
struct	NullTag
	Type used to read and write special value 22 (null) from or to a CBOR stream. More...
class	RangeIterator
	An object that can be used to keep track of the elements when decoding a CBOR array or map. More...
struct	UndefinedTag
	Type used to read and write special value 23 (undefined) from or to a CBOR stream. More...

Enumerations
enum class	DataType {   Null , UnsignedInteger , NegativeInteger , FloatingPoint ,   Boolean , TextString , ByteString , Array ,   Map , Tag , Undefined , SimpleValue ,   Break }
	A fundamental CBOR data type. More...
enum class	SimpleValue : std::uint8_t { False , True , Null , Undefined }
	A class for simple values. More...
enum class	Tag : std::uint64_t {   StandardDateTimeString , EpochBasedDateTime , PositiveBignum , NegativeBignum ,   DecimalFraction , Bigfloat , CoseSingleRecipientEncryptedDataObject , CoseMacWithoutRecipientsObject ,   CoseSingleSignerDataObject , CoseStandaloneV2Countersignature , ExpectedConversionToBase64urlEncoding , ExpectedConversionToBase64Encoding ,   ExpectedConversionToBase16Encoding , EncodedCborDataItem , ReferenceTheNthPreviouslySeenString , SerialisedPerlObjectWithClassnameAndConstructorArguments ,   SerialisedLanguageIndependentObjectWithTypeNameAndConstructorArguments , MarkValueAsPotentiallyShared , ReferenceNthMarkedValue , RationalNumber ,   AbsentValueInACborArray , Uri , Base64url , Base64 ,   RegularExpression , MimeMessage , BinaryUuid , LanguageTaggedString ,   Identifier , MultiDimensionalArrayRowMajorOrder , HomogeneousArray , IpldContentIdentifier ,   YangBitsDatatype , YangEnumerationDatatype , YangIdentityrefDatatype , YangInstanceIdentifierDatatype ,   YangSchemaItemIdentifier , Ipv4 , Ipv6 , CborWebToken ,   EncodedCborSequence , Uint8TypedArray , Uint16BigEndianTypedArray , Uint32BigEndianTypedArray ,   Uint64BigEndianTypedArray , Uint8TypedArrayClampedArithmetic , Uint16LittleEndianTypedArray , Uint32LittleEndianTypedArray ,   Uint64LittleEndianTypedArray , Sint8TypedArray , Sint16BigEndianTypedArray , Sint32BigEndianTypedArray ,   Sint64BigEndianTypedArray , Sint16LittleEndianTypedArray , Sint32LittleEndianTypedArray , Sint64LittleEndianTypedArray ,   Ieee754Binary16BigEndianTypedArray , Ieee754Binary32BigEndianTypedArray , Ieee754Binary64BigEndianTypedArray , Ieee754Binary128BigEndianTypedArray ,   Ieee754Binary16LittleEndianTypedArray , Ieee754Binary32LittleEndianTypedArray , Ieee754Binary64LittleEndianTypedArray , Ieee754Binary128LittleEndianTypedArray ,   CoseEncryptedDataObject , CoseMacedDataObject , CoseSignedDataObject , NumberOfDaysSinceTheEpochDate ,   GeographicCoordinates , GeographicCoordinateReferenceSystemWktOrEpsgNumber , RelativeObjectIdentifier , ObjectIdentifier ,   ObjectIdentifierRelativeTo1_3_6_1_4_1 , InternetOfThingsDataPoint , MarkValueAsHavingStringReferences , BinaryMimeMessage ,   MathematicalFiniteSet , MapDatatypeWithKeyValueOperations , NetworkAddress , NetworkAddressPrefix ,   EmbeddedJsonObject , HexadecimalString , DecimalFractionWithArbitraryExponent , BigfloatWithArbitraryExponent ,   InternationalizedResourceIdentifier , InternationalizedResourceIdentifierReference , ExtendedDecimalFraction , ExtendedBigfloat ,   ExtendedRationalNumber , DotsSignalChannelObjectAsDefinedIn , NonUtf8Cesu8String , NonUtf8Wtf8String ,   NonUtf8Mutf8String , MapContainsOnlyKeysThatAreOfTypeTextString , ErisBinaryReadCapability , GadShape ,   GadDescriptionOfVelocity , ExtendedTime , Duration , Period ,   FullDateString , MultiDimensionalArrayColumnMajorOrder , HintThatIndicatesAnAdditionalLevelOfIndirection , Capture ,   IdentifierForAFhirConstant , ExternalReference , ConfidentialityClearance , MetadataBinding ,   CollectionOfNcmsMetadataElements , SingleComplexNumber , ArrayOfComplexNumbersInInterleavedForm , PlatformVIsId ,   PlatformVIsName , PlatformVIsValue , PlatformVHasCompositeValue , PlatformVHasMappedValue ,   PlatformVHasObjId , PlatformVHasObjTag , PlatformVHasChild , PlatformVHasProperty ,   PlatformVHasMeta , PlatformVHasEvent , PlatformVHasAction , PlatformVIsType ,   SelfDescribedCbor , FileContainsCborSequences , FileStartsWithACborLabeledNonCborDataLabel , CompressedByteString ,   SetOfRecordStructures , RecordStructure , ArrayOfAttestationEvidenceDataWithIntelTeeQuote , ArrayOfAttestationEvidenceDataWithIntelTeeReport ,   ArrayOfAttestationEvidenceDataWithIntelSgxReport , RainsMessage , CborEncodedOpenswanConfigurationFile , ConciseSoftwareIdentifier ,   ArrayOfContentAddressedBlocksAndErisReadCapabilities , IntelFpgaSpdmManifest }
	A CBOR data item tag. More...

Functions
constexpr auto	operator== (std::size_t size, IndefiniteTag tag) noexcept -> bool
	Checks whether a length value represents an indefinite length array or map.

Variables
constexpr NullTag	kNull
	A marker for special CBOR value 22 (null)
constexpr UndefinedTag	kUndefined
	A marker for special CBOR value 23 (undefined)
constexpr BreakTag	kBreak
	A marker for special CBOR value 31 (break)
constexpr IndefiniteTag	kIndefinite
	A helper object used to determine whether an array or a map has indefinite length.

Detailed Description

CBOR encoder and decoder.

This namespace contains functionality related to C++ coroutines.

Enumeration Type Documentation

DataType

enum class xentara::utils::cbor::DataType

strong

A fundamental CBOR data type.

These data types mostly correspond to CBOR major types. However, CBOR uses major type 7 to hold both floating point numbers, and so called “simple values” (see section 3.3) of RFC 8949). This enum defines separate enum values for the different uses of major type 7, however, to make handling major type 7 easier.

Enumerator
Null	Null (Major type 7, additional information value 22)
UnsignedInteger	Usigned integer (Major type 0)
NegativeInteger	Negative integer (Major type 1)
FloatingPoint	Floating-point number (Major type 7, additional information values 25 to 27)
Boolean	Boolean (Major type 7, additional information values 20 and 21)
TextString	Text string encoded as UTF-8 (Major type 3)
ByteString	Byte string (Major type 2)
Array	CBOR array (Major type 4)
Map	CBOR map (Major type 5)
Tag	CBOR data item tag (Major type 6) See also section 3.4) of RFC 8949.
Undefined	Undefined (Major type 7, additional information value 23) See also section 5.7) of RFC 8949.
SimpleValue	Unassigned simple value (Major type 7, additional information values 0 to 19 and 32 to 255)
Break	Break (Major type 7, additional information value 31) See also section 3.2.1) RFC 8949.

SimpleValue

enum class xentara::utils::cbor::SimpleValue : std::uint8_t

strong

A class for simple values.

Enumerator
False	Represents the boolean value false
True	Represents the boolean value true
Null	Represents a CBOR null value.
Undefined	Represents a undefined CBOR value. See also section 5.7) of RFC 8949.

Tag

enum class xentara::utils::cbor::Tag : std::uint64_t

strong

A CBOR data item tag.

See also

section 3.4) of RFC 8949.

Concise Binary Object Representation (CBOR) Tags at iana

Enumerator
StandardDateTimeString	Standard date/time string.
EpochBasedDateTime	Epoch-based date/time.
PositiveBignum	Positive bignum.
NegativeBignum	Negative bignum.
DecimalFraction	Decimal fraction.
Bigfloat	Bigfloat.
CoseSingleRecipientEncryptedDataObject	COSE Single Recipient Encrypted Data Object.
CoseMacWithoutRecipientsObject	COSE Mac w/o Recipients Object.
CoseSingleSignerDataObject	COSE Single Signer Data Object.
CoseStandaloneV2Countersignature	COSE standalone V2 countersignature.
ExpectedConversionToBase64urlEncoding	Expected conversion to base64url encoding.
ExpectedConversionToBase64Encoding	Expected conversion to base64 encoding.
ExpectedConversionToBase16Encoding	Expected conversion to base16 encoding.
EncodedCborDataItem	Encoded CBOR data item.
ReferenceTheNthPreviouslySeenString	reference the nth previously seen string
SerialisedPerlObjectWithClassnameAndConstructorArguments	Serialised Perl object with classname and constructor arguments.
SerialisedLanguageIndependentObjectWithTypeNameAndConstructorArguments	Serialised language-independent object with type name and constructor arguments.
MarkValueAsPotentiallyShared	mark value as (potentially) shared
ReferenceNthMarkedValue	reference nth marked value
RationalNumber	Rational number.
AbsentValueInACborArray	Absent value in a CBOR Array.
Uri	URI.
Base64url	base64url
Base64	base64
RegularExpression	Regular expression.
MimeMessage	MIME message.
BinaryUuid	Binary UUID ([RFC4122, Section 4.1.2])
LanguageTaggedString	Language-tagged string.
Identifier	Identifier.
MultiDimensionalArrayRowMajorOrder	Multi-dimensional Array, row-major order.
HomogeneousArray	Homogeneous Array.
IpldContentIdentifier	IPLD content identifier.
YangBitsDatatype	YANG bits datatype.
YangEnumerationDatatype	YANG enumeration datatype.
YangIdentityrefDatatype	YANG identityref datatype.
YangInstanceIdentifierDatatype	YANG instance-identifier datatype.
YangSchemaItemIdentifier	YANG Schema Item iDentifier (sid)
Ipv4	IPv4, [prefixlen,IPv4], [IPv4,prefixpart].
Ipv6	IPv6, [prefixlen,IPv6], [IPv6,prefixpart].
CborWebToken	CBOR Web Token (CWT)
EncodedCborSequence	Encoded CBOR Sequence [RFC8742].
Uint8TypedArray	uint8 Typed Array
Uint16BigEndianTypedArray	uint16, big endian, Typed Array
Uint32BigEndianTypedArray	uint32, big endian, Typed Array
Uint64BigEndianTypedArray	uint64, big endian, Typed Array
Uint8TypedArrayClampedArithmetic	uint8 Typed Array, clamped arithmetic
Uint16LittleEndianTypedArray	uint16, little endian, Typed Array
Uint32LittleEndianTypedArray	uint32, little endian, Typed Array
Uint64LittleEndianTypedArray	uint64, little endian, Typed Array
Sint8TypedArray	sint8 Typed Array
Sint16BigEndianTypedArray	sint16, big endian, Typed Array
Sint32BigEndianTypedArray	sint32, big endian, Typed Array
Sint64BigEndianTypedArray	sint64, big endian, Typed Array
Sint16LittleEndianTypedArray	sint16, little endian, Typed Array
Sint32LittleEndianTypedArray	sint32, little endian, Typed Array
Sint64LittleEndianTypedArray	sint64, little endian, Typed Array
Ieee754Binary16BigEndianTypedArray	IEEE 754 binary16, big endian, Typed Array.
Ieee754Binary32BigEndianTypedArray	IEEE 754 binary32, big endian, Typed Array.
Ieee754Binary64BigEndianTypedArray	IEEE 754 binary64, big endian, Typed Array.
Ieee754Binary128BigEndianTypedArray	IEEE 754 binary128, big endian, Typed Array.
Ieee754Binary16LittleEndianTypedArray	IEEE 754 binary16, little endian, Typed Array.
Ieee754Binary32LittleEndianTypedArray	IEEE 754 binary32, little endian, Typed Array.
Ieee754Binary64LittleEndianTypedArray	IEEE 754 binary64, little endian, Typed Array.
Ieee754Binary128LittleEndianTypedArray	IEEE 754 binary128, little endian, Typed Array.
CoseEncryptedDataObject	COSE Encrypted Data Object.
CoseMacedDataObject	COSE MACed Data Object.
CoseSignedDataObject	COSE Signed Data Object.
NumberOfDaysSinceTheEpochDate	Number of days since the epoch date 1970-01-01.
GeographicCoordinates	Geographic Coordinates.
GeographicCoordinateReferenceSystemWktOrEpsgNumber	Geographic Coordinate Reference System WKT or EPSG number.
RelativeObjectIdentifier	relative object identifier (BER encoding); SDNV [RFC6256] sequence
ObjectIdentifier	object identifier (BER encoding)
ObjectIdentifierRelativeTo1_3_6_1_4_1	object identifier (BER encoding), relative to 1.3.6.1.4.1
InternetOfThingsDataPoint	Internet of Things Data Point.
MarkValueAsHavingStringReferences	mark value as having string references
BinaryMimeMessage	Binary MIME message.
MathematicalFiniteSet	Mathematical finite set.
MapDatatypeWithKeyValueOperations	Map datatype with key-value operations (e.g. .get()/.set()/.delete())
NetworkAddress	Network Address (IPv4 or IPv6 or MAC Address) (DEPRECATED in favor of 52 and 54 for IP addresses)
NetworkAddressPrefix	Network Address Prefix (IPv4 or IPv6 Address + Mask Length) (DEPRECATED in favor of 52 and 54 for IP addresses)
EmbeddedJsonObject	Embedded JSON Object.
HexadecimalString	Hexadecimal string.
DecimalFractionWithArbitraryExponent	Decimal fraction with arbitrary exponent.
BigfloatWithArbitraryExponent	Bigfloat with arbitrary exponent.
InternationalizedResourceIdentifier	Internationalized resource identifier (IRI)
InternationalizedResourceIdentifierReference	Internationalized resource identifier reference (IRI reference)
ExtendedDecimalFraction	Extended decimal fraction.
ExtendedBigfloat	Extended bigfloat.
ExtendedRationalNumber	Extended rational number.
DotsSignalChannelObjectAsDefinedIn	DDoS Open Threat Signaling (DOTS) signal channel object, as defined in [RFC9132].
NonUtf8Cesu8String	Non-UTF-8 CESU-8 string.
NonUtf8Wtf8String	Non-UTF-8 WTF-8 string.
NonUtf8Mutf8String	Non-UTF-8 MUTF-8 string.
MapContainsOnlyKeysThatAreOfTypeTextString	Map contains only keys that are of type Text String (major type 3)
ErisBinaryReadCapability	ERIS binary read capability.
GadShape	Universal Geographical Area Description (GAD) shape.
GadDescriptionOfVelocity	Universal Geographical Area Description (GAD) description of velocity.
ExtendedTime	extended time
Duration	duration
Period	period
FullDateString	[RFC3339] full-date string
MultiDimensionalArrayColumnMajorOrder	Multi-dimensional Array, column-major order.
HintThatIndicatesAnAdditionalLevelOfIndirection	hint that indicates an additional level of indirection
Capture	Capture [3].
IdentifierForAFhirConstant	Identifier for a FHIR constant.
ExternalReference	External reference.
ConfidentialityClearance	A confidentiality clearance. The key value pairs of the map are defined in ADatP-4774.4.
MetadataBinding	A metadata binding. The elements of the array are defined in AdatP-4778.5. The tag is also used as part of the magic number in on-disk detached and encapsulating bindings.
CollectionOfNcmsMetadataElements	A collection of NCMS metadata elements. The key value pairs of the map are defined in AdatP-5636.4.
SingleComplexNumber	Single complex number: array elements are real (I) and imaginary (Q) components.
ArrayOfComplexNumbersInInterleavedForm	Array of complex numbers in interleaved form: complex value k is stored with real (I) part at array index 2k and imaginary (Q) part at index (2k + 1)
PlatformVIsId	PlatformV_IS_ID.
PlatformVIsName	PlatformV_IS_NAME.
PlatformVIsValue	PlatformV_IS_VALUE.
PlatformVHasCompositeValue	PlatformV_HAS_COMPOSITE_VALUE.
PlatformVHasMappedValue	PlatformV_HAS_MAPPED_VALUE.
PlatformVHasObjId	PlatformV_HAS_OBJ_ID.
PlatformVHasObjTag	PlatformV_HAS_OBJ_TAG.
PlatformVHasChild	PlatformV_HAS_CHILD.
PlatformVHasProperty	PlatformV_HAS_PROPERTY.
PlatformVHasMeta	PlatformV_HAS_META.
PlatformVHasEvent	PlatformV_HAS_EVENT.
PlatformVHasAction	PlatformV_HAS_ACTION.
PlatformVIsType	PlatformV_IS_TYPE.
SelfDescribedCbor	Self-described CBOR.
FileContainsCborSequences	indicates that the file contains CBOR Sequences
FileStartsWithACborLabeledNonCborDataLabel	indicates that the file starts with a CBOR-Labeled Non-CBOR Data label.
CompressedByteString	Compressed byte string.
SetOfRecordStructures	Identify and define a set of record structures (each a sequence of property names) that can be referenced as tags in the included value (and the scope for the record tag definitions)
RecordStructure	Identify and define a record structure (a sequence of property names), and use that record structure definition to interpret the included values.
ArrayOfAttestationEvidenceDataWithIntelTeeQuote	The tagged CBOR array contains attestation evidence data with an Intel TEE quote.
ArrayOfAttestationEvidenceDataWithIntelTeeReport	The tagged CBOR array contains attestation evidence data with an Intel TEE report.
ArrayOfAttestationEvidenceDataWithIntelSgxReport	The tagged CBOR array contains attestation evidence data with an Intel SGX report.
RainsMessage	RAINS Message.
CborEncodedOpenswanConfigurationFile	A CBOR encoded Openswan configuration file, as stored on disk for unit test cases.
ConciseSoftwareIdentifier	Concise Software Identifier (CoSWID)
ArrayOfContentAddressedBlocksAndErisReadCapabilities	Array of content-addressed blocks and ERIS read capabilities.
IntelFpgaSpdmManifest	Intel FPGA SPDM Manifest.

Function Documentation

operator==()

constexpr auto xentara::utils::cbor::operator== ( std::size_t  size, IndefiniteTag  tag  ) -> bool

constexprnoexcept

Checks whether a length value represents an indefinite length array or map.

Parameters

size	The length of the array, as returned by Array::Size() or MapHeader::size().
tag	Always pass kIndefinite as this parameter

Returns

Rteurns true if size represents an indefinite length, or false if it represents a definite length.

Variable Documentation

kBreak

constexpr BreakTag xentara::utils::cbor::kBreak

constexpr

A marker for special CBOR value 31 (break)

This marker is used to read and write special value 31 (break) from or to a CBOR stream

See also

section 3.2.1) RFC 8949.

kIndefinite

constexpr IndefiniteTag xentara::utils::cbor::kIndefinite

constexpr

A helper object used to determine whether an array or a map has indefinite length.

This object can be used to construct arrays and maps of indefinite length. It can also be compared to and std::size_t to determine if it represents the length of an indefinite length array or map.

See also

Array

MapHeader

section 3.2.2) of RFC 8949.

kNull

constexpr NullTag xentara::utils::cbor::kNull

constexpr

A marker for special CBOR value 22 (null)

This marker is used to read and write special value 22 (null) from or to a CBOR stream

kUndefined

constexpr UndefinedTag xentara::utils::cbor::kUndefined

constexpr

A marker for special CBOR value 23 (undefined)

This marker is used to read and write special value 23 (undefined) from or to a CBOR stream

See also

section 5.7) of RFC 8949.