ndn::tlv Namespace Reference

Namespace defining NDN-TLV related constants and procedures. More...

Namespaces
	nfd
	security

Classes
class	Error
	represents an error in TLV encoding or decoding More...

Enumerations
enum	{   Interest = 5, Data = 6, Name = 7, ImplicitSha256DigestComponent = 1,   NameComponent = 8, Selectors = 9, Nonce = 10, InterestLifetime = 12,   MinSuffixComponents = 13, MaxSuffixComponents = 14, PublisherPublicKeyLocator = 15, Exclude = 16,   ChildSelector = 17, MustBeFresh = 18, Any = 19, MetaInfo = 20,   Content = 21, SignatureInfo = 22, SignatureValue = 23, ContentType = 24,   FreshnessPeriod = 25, FinalBlockId = 26, SignatureType = 27, KeyLocator = 28,   KeyDigest = 29, LinkPreference = 30, LinkDelegation = 31, SelectedDelegation = 32,   AppPrivateBlock1 = 128, AppPrivateBlock2 = 32767 }
enum	SignatureTypeValue { DigestSha256 = 0, SignatureSha256WithRsa = 1, SignatureSha256WithEcdsa = 3 }
enum	{   ValidityPeriod = 253, NotBefore = 254, NotAfter = 255, AdditionalDescription = 258,   DescriptionEntry = 512, DescriptionKey = 513, DescriptionValue = 514 }
	TLV codes for SignatureInfo features. More...
enum	ContentTypeValue { ContentType_Blob = 0, ContentType_Link = 1, ContentType_Key = 2, ContentType_Nack = 3 }
	indicates a possible value of ContentType field More...

Functions
template<class InputIterator >
bool	readVarNumber (InputIterator &begin, const InputIterator &end, uint64_t &number)
	Read VAR-NUMBER in NDN-TLV encoding. More...
template<class InputIterator >
bool	readType (InputIterator &begin, const InputIterator &end, uint32_t &type)
	Read TLV Type. More...
template<class InputIterator >
uint64_t	readVarNumber (InputIterator &begin, const InputIterator &end)
	Read VAR-NUMBER in NDN-TLV encoding. More...
template<class InputIterator >
uint32_t	readType (InputIterator &begin, const InputIterator &end)
	Read TLV Type. More...
size_t	sizeOfVarNumber (uint64_t varNumber)
	Get number of bytes necessary to hold value of VAR-NUMBER. More...
size_t	writeVarNumber (std::ostream &os, uint64_t varNumber)
	Write VAR-NUMBER to the specified stream. More...
template<class InputIterator >
uint64_t	readNonNegativeInteger (size_t size, InputIterator &begin, const InputIterator &end)
	Read nonNegativeInteger in NDN-TLV encoding. More...
size_t	sizeOfNonNegativeInteger (uint64_t varNumber)
	Get number of bytes necessary to hold value of nonNegativeInteger. More...
size_t	writeNonNegativeInteger (std::ostream &os, uint64_t varNumber)
	Write nonNegativeInteger to the specified stream. More...
template<>
bool	readVarNumber< std::istream_iterator< uint8_t > > (std::istream_iterator< uint8_t > &begin, const std::istream_iterator< uint8_t > &end, uint64_t &value)
template<>
uint64_t	readNonNegativeInteger< std::istream_iterator< uint8_t > > (size_t size, std::istream_iterator< uint8_t > &begin, const std::istream_iterator< uint8_t > &end)

Detailed Description

Namespace defining NDN-TLV related constants and procedures.

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
Interest
Data
Name
ImplicitSha256DigestComponent
NameComponent
Selectors
Nonce
InterestLifetime
MinSuffixComponents
MaxSuffixComponents
PublisherPublicKeyLocator
Exclude
ChildSelector
MustBeFresh
Any
MetaInfo
Content
SignatureInfo
SignatureValue
ContentType
FreshnessPeriod
FinalBlockId
SignatureType
KeyLocator
KeyDigest
LinkPreference
LinkDelegation
SelectedDelegation
AppPrivateBlock1
AppPrivateBlock2

Definition at line 60 of file tlv.hpp.

SignatureTypeValue

enum ndn::tlv::SignatureTypeValue

Enumerator
DigestSha256
SignatureSha256WithRsa
SignatureSha256WithEcdsa

Definition at line 95 of file tlv.hpp.

anonymous enum

anonymous enum

TLV codes for SignatureInfo features.

See also

docs/tutorials/certificate-format.rst

Enumerator
ValidityPeriod
NotBefore
NotAfter
AdditionalDescription
DescriptionEntry
DescriptionKey
DescriptionValue

Definition at line 105 of file tlv.hpp.

ContentTypeValue

enum ndn::tlv::ContentTypeValue

indicates a possible value of ContentType field

Enumerator
ContentType_Blob	indicates content is the actual data bits
ContentType_Link	indicates content is another name which identifies actual data content
ContentType_Key	indicates content is a public key
ContentType_Nack	indicates a producer generated NACK Warning Experimental. Not defined in NDN-TLV spec.

Definition at line 119 of file tlv.hpp.

Function Documentation

readVarNumber() [1/2]

template<class InputIterator >

bool ndn::tlv::readVarNumber ( InputIterator &  begin, const InputIterator &  end, uint64_t &  number  )

inline

Read VAR-NUMBER in NDN-TLV encoding.

Parameters

[in]	begin	Begin (pointer or iterator) of the buffer
[in]	end	End (pointer or iterator) of the buffer
[out]	number	Read number

Exceptions

This	call never throws exception

Returns

true if number successfully read from input, false otherwise

Definition at line 243 of file tlv.hpp.

Referenced by ndn::Block::Block(), ndn::Block::blockFromValue(), ndn::Block::encode(), ndn::Block::fromBuffer(), ndn::Block::fromStream(), ndn::Block::parse(), readType(), and readVarNumber().

readType() [1/2]

template<class InputIterator >

bool ndn::tlv::readType ( InputIterator &  begin, const InputIterator &  end, uint32_t &  type  )

inline

Read TLV Type.

Parameters

[in]	begin	Begin (pointer or iterator) of the buffer
[in]	end	End (pointer or iterator) of the buffer
[out]	type	Read type number

Exceptions

This	call never throws exception

This call is largely equivalent to tlv::readVarNumber, but exception will be thrown if type is larger than 2^32-1 (type in this library is implemented as uint32_t)

Definition at line 288 of file tlv.hpp.

References readVarNumber().

Referenced by ndn::Block::Block(), ndn::Block::blockFromValue(), ndn::Block::encode(), ndn::Block::fromBuffer(), ndn::Block::fromStream(), and ndn::Block::parse().

readVarNumber() [2/2]

template<class InputIterator >

uint64_t ndn::tlv::readVarNumber ( InputIterator &  begin, const InputIterator &  end  )

inline

Read VAR-NUMBER in NDN-TLV encoding.

Exceptions

This	call will throw ndn::tlv::Error (aka std::runtime_error) if number cannot be read

Note that after call finished, begin will point to the first byte after the read VAR-NUMBER

Definition at line 303 of file tlv.hpp.

References ndn::tlv::Error::Error(), and readVarNumber().

readType() [2/2]

template<class InputIterator >

uint32_t ndn::tlv::readType ( InputIterator &  begin, const InputIterator &  end  )

inline

Read TLV Type.

Exceptions

This	call will throw ndn::tlv::Error (aka std::runtime_error) if number cannot be read

This call is largely equivalent to tlv::readVarNumber, but exception will be thrown if type is larger than 2^32-1 (type in this library is implemented as uint32_t)

Definition at line 376 of file tlv.hpp.

References ndn::tlv::Error::Error(), and readVarNumber().

sizeOfVarNumber()

size_t ndn::tlv::sizeOfVarNumber ( uint64_t  varNumber )

inline

Get number of bytes necessary to hold value of VAR-NUMBER.

Definition at line 388 of file tlv.hpp.

Referenced by ndn::Block::Block().

writeVarNumber()

size_t ndn::tlv::writeVarNumber ( std::ostream &  os, uint64_t  varNumber  )

inline

Write VAR-NUMBER to the specified stream.

Definition at line 405 of file tlv.hpp.

Referenced by ndn::Block::encode().

readNonNegativeInteger()

template<class InputIterator >

uint64_t ndn::tlv::readNonNegativeInteger ( size_t  size, InputIterator &  begin, const InputIterator &  end  )

inline

Read nonNegativeInteger in NDN-TLV encoding.

This call will throw ndn::tlv::Error (aka std::runtime_error) if number cannot be read

Note that after call finished, begin will point to the first byte after the read VAR-NUMBER

How many bytes will be read is directly controlled by the size parameter, which can be either 1, 2, 4, or 8. If the value of size is different, then an exception will be thrown.

Definition at line 433 of file tlv.hpp.

References ndn::tlv::Error::Error().

Referenced by ndn::encoding::readNonNegativeInteger(), and ndn::name::Component::toNumberWithMarker().

sizeOfNonNegativeInteger()

size_t ndn::tlv::sizeOfNonNegativeInteger ( uint64_t  varNumber )

inline

Get number of bytes necessary to hold value of nonNegativeInteger.

Definition at line 542 of file tlv.hpp.

writeNonNegativeInteger()

size_t ndn::tlv::writeNonNegativeInteger ( std::ostream &  os, uint64_t  varNumber  )

inline

Write nonNegativeInteger to the specified stream.

Definition at line 560 of file tlv.hpp.

readVarNumber< std::istream_iterator< uint8_t > >()

template<>

bool ndn::tlv::readVarNumber< std::istream_iterator< uint8_t > > ( std::istream_iterator< uint8_t > &  begin, const std::istream_iterator< uint8_t > &  end, uint64_t &  value  )

inline

Definition at line 318 of file tlv.hpp.

readNonNegativeInteger< std::istream_iterator< uint8_t > >()

template<>

uint64_t ndn::tlv::readNonNegativeInteger< std::istream_iterator< uint8_t > > ( size_t  size, std::istream_iterator< uint8_t > &  begin, const std::istream_iterator< uint8_t > &  end  )

inline

Definition at line 478 of file tlv.hpp.

References ndn::tlv::Error::Error().