#include <winpr/winpr.h>
#include <winpr/wtypes.h>
#include <winpr/stream.h>

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Data Structures
struct	WinPrAsn1Decoder

struct	WinPrAsn1_MemoryChunk

struct	WinPrAsn1_UTCTIME

Macros
#define	ER_TAG_MASK 0x1F

Typedefs
typedef BYTE	WinPrAsn1_tag

typedef BYTE	WinPrAsn1_tagId

typedef BOOL	WinPrAsn1_BOOL

typedef INT32	WinPrAsn1_INTEGER

typedef INT32	WinPrAsn1_ENUMERATED

typedef char *	WinPrAsn1_STRING

typedef char *	WinPrAsn1_IA5STRING

typedef WinPrAsn1_MemoryChunk	WinPrAsn1_OID

typedef WinPrAsn1_MemoryChunk	WinPrAsn1_OctetString

Enumerations
enum	{ ER_TAG_BOOLEAN = 0x01 , ER_TAG_INTEGER = 0x02 , ER_TAG_BIT_STRING = 0x03 , ER_TAG_OCTET_STRING = 0x04 , ER_TAG_NULL = 0x05 , ER_TAG_OBJECT_IDENTIFIER = 0x06 , ER_TAG_ENUMERATED = 0x0A , ER_TAG_UTF8STRING = 0x0C , ER_TAG_PRINTABLE_STRING = 0x13 , ER_TAG_IA5STRING = 0x16 , ER_TAG_UTCTIME = 0x17 , ER_TAG_GENERAL_STRING = 0x1B , ER_TAG_GENERALIZED_TIME = 0x18 , ER_TAG_APP = 0x60 , ER_TAG_SEQUENCE = 0x30 , ER_TAG_SEQUENCE_OF = 0x30 , ER_TAG_SET = 0x31 , ER_TAG_SET_OF = 0x31 , ER_TAG_CONTEXTUAL = 0xA0 }

enum	WinPrAsn1EncodingRule { WINPR_ASN1_BER , WINPR_ASN1_DER }
	rules for encoding More...

Functions
WINPR_API void	WinPrAsn1FreeOID (WinPrAsn1_OID *poid)

WINPR_API void	WinPrAsn1FreeOctetString (WinPrAsn1_OctetString *octets)

WINPR_API void	WinPrAsn1Decoder_Init (WinPrAsn1Decoder dec, WinPrAsn1EncodingRule encoding, wStream source)

WINPR_API void	WinPrAsn1Decoder_InitMem (WinPrAsn1Decoder dec, WinPrAsn1EncodingRule encoding, const BYTE source, size_t len)

WINPR_API BOOL	WinPrAsn1DecPeekTag (WinPrAsn1Decoder dec, WinPrAsn1_tag tag)

WINPR_API size_t	WinPrAsn1DecReadTagAndLen (WinPrAsn1Decoder dec, WinPrAsn1_tag tag, size_t *len)

WINPR_API size_t	WinPrAsn1DecPeekTagAndLen (WinPrAsn1Decoder dec, WinPrAsn1_tag tag, size_t *len)

WINPR_API size_t	WinPrAsn1DecReadTagLenValue (WinPrAsn1Decoder dec, WinPrAsn1_tag tag, size_t len, WinPrAsn1Decoder value)

WINPR_API size_t	WinPrAsn1DecReadBoolean (WinPrAsn1Decoder dec, WinPrAsn1_BOOL target)

WINPR_API size_t	WinPrAsn1DecReadInteger (WinPrAsn1Decoder dec, WinPrAsn1_INTEGER target)

WINPR_API size_t	WinPrAsn1DecReadEnumerated (WinPrAsn1Decoder dec, WinPrAsn1_ENUMERATED target)

WINPR_API size_t	WinPrAsn1DecReadOID (WinPrAsn1Decoder dec, WinPrAsn1_OID target, BOOL allocate)

WINPR_API size_t	WinPrAsn1DecReadOctetString (WinPrAsn1Decoder dec, WinPrAsn1_OctetString target, BOOL allocate)

WINPR_API size_t	WinPrAsn1DecReadIA5String (WinPrAsn1Decoder dec, WinPrAsn1_IA5STRING target)

WINPR_API size_t	WinPrAsn1DecReadGeneralString (WinPrAsn1Decoder dec, WinPrAsn1_STRING target)

WINPR_API size_t	WinPrAsn1DecReadUtcTime (WinPrAsn1Decoder dec, WinPrAsn1_UTCTIME target)

WINPR_API size_t	WinPrAsn1DecReadNull (WinPrAsn1Decoder *dec)

WINPR_API size_t	WinPrAsn1DecReadApp (WinPrAsn1Decoder dec, WinPrAsn1_tagId tagId, WinPrAsn1Decoder *setDec)

WINPR_API size_t	WinPrAsn1DecReadSequence (WinPrAsn1Decoder dec, WinPrAsn1Decoder seqDec)

WINPR_API size_t	WinPrAsn1DecReadSet (WinPrAsn1Decoder dec, WinPrAsn1Decoder setDec)

WINPR_API size_t	WinPrAsn1DecReadContextualTag (WinPrAsn1Decoder dec, WinPrAsn1_tagId tagId, WinPrAsn1Decoder *ctxtDec)

WINPR_API size_t	WinPrAsn1DecPeekContextualTag (WinPrAsn1Decoder dec, WinPrAsn1_tagId tagId, WinPrAsn1Decoder *ctxtDec)

WINPR_API size_t	WinPrAsn1DecReadContextualBool (WinPrAsn1Decoder dec, WinPrAsn1_tagId tagId, BOOL error, WinPrAsn1_BOOL *target)

WINPR_API size_t	WinPrAsn1DecReadContextualInteger (WinPrAsn1Decoder dec, WinPrAsn1_tagId tagId, BOOL error, WinPrAsn1_INTEGER *target)

WINPR_API size_t	WinPrAsn1DecReadContextualOID (WinPrAsn1Decoder dec, WinPrAsn1_tagId tagId, BOOL error, WinPrAsn1_OID *target, BOOL allocate)

WINPR_API size_t	WinPrAsn1DecReadContextualOctetString (WinPrAsn1Decoder dec, WinPrAsn1_tagId tagId, BOOL error, WinPrAsn1_OctetString *target, BOOL allocate)

WINPR_API size_t	WinPrAsn1DecReadContextualSequence (WinPrAsn1Decoder dec, WinPrAsn1_tagId tagId, BOOL error, WinPrAsn1Decoder *target)

WINPR_API wStream	WinPrAsn1DecGetStream (WinPrAsn1Decoder *dec)

WINPR_API void	WinPrAsn1Encoder_Free (WinPrAsn1Encoder **penc)

WINPR_API WinPrAsn1Encoder *	WinPrAsn1Encoder_New (WinPrAsn1EncodingRule encoding)

WINPR_API void	WinPrAsn1Encoder_Reset (WinPrAsn1Encoder *enc)

WINPR_API BOOL	WinPrAsn1EncAppContainer (WinPrAsn1Encoder *enc, WinPrAsn1_tagId tagId)

WINPR_API BOOL	WinPrAsn1EncSeqContainer (WinPrAsn1Encoder *enc)

WINPR_API BOOL	WinPrAsn1EncContextualSeqContainer (WinPrAsn1Encoder *enc, WinPrAsn1_tagId tagId)

WINPR_API BOOL	WinPrAsn1EncSetContainer (WinPrAsn1Encoder *enc)

WINPR_API BOOL	WinPrAsn1EncContextualSetContainer (WinPrAsn1Encoder *enc, WinPrAsn1_tagId tagId)

WINPR_API BOOL	WinPrAsn1EncContextualContainer (WinPrAsn1Encoder *enc, WinPrAsn1_tagId tagId)

WINPR_API BOOL	WinPrAsn1EncOctetStringContainer (WinPrAsn1Encoder *enc)

WINPR_API BOOL	WinPrAsn1EncContextualOctetStringContainer (WinPrAsn1Encoder *enc, WinPrAsn1_tagId tagId)

WINPR_API size_t	WinPrAsn1EncEndContainer (WinPrAsn1Encoder *enc)

WINPR_API size_t	WinPrAsn1EncRawContent (WinPrAsn1Encoder enc, const WinPrAsn1_MemoryChunk c)

WINPR_API size_t	WinPrAsn1EncContextualRawContent (WinPrAsn1Encoder enc, WinPrAsn1_tagId tagId, const WinPrAsn1_MemoryChunk c)

WINPR_API size_t	WinPrAsn1EncInteger (WinPrAsn1Encoder *enc, WinPrAsn1_INTEGER integer)

WINPR_API size_t	WinPrAsn1EncContextualInteger (WinPrAsn1Encoder *enc, WinPrAsn1_tagId tagId, WinPrAsn1_INTEGER integer)

WINPR_API size_t	WinPrAsn1EncBoolean (WinPrAsn1Encoder *enc, WinPrAsn1_BOOL b)

WINPR_API size_t	WinPrAsn1EncContextualBoolean (WinPrAsn1Encoder *enc, WinPrAsn1_tagId tagId, WinPrAsn1_BOOL b)

WINPR_API size_t	WinPrAsn1EncEnumerated (WinPrAsn1Encoder *enc, WinPrAsn1_ENUMERATED e)

WINPR_API size_t	WinPrAsn1EncContextualEnumerated (WinPrAsn1Encoder *enc, WinPrAsn1_tagId tagId, WinPrAsn1_ENUMERATED e)

WINPR_API size_t	WinPrAsn1EncOID (WinPrAsn1Encoder enc, const WinPrAsn1_OID oid)

WINPR_API size_t	WinPrAsn1EncContextualOID (WinPrAsn1Encoder enc, WinPrAsn1_tagId tagId, const WinPrAsn1_OID oid)

WINPR_API size_t	WinPrAsn1EncOctetString (WinPrAsn1Encoder enc, const WinPrAsn1_OctetString oid)

WINPR_API size_t	WinPrAsn1EncContextualOctetString (WinPrAsn1Encoder enc, WinPrAsn1_tagId tagId, const WinPrAsn1_OctetString oid)

WINPR_API size_t	WinPrAsn1EncIA5String (WinPrAsn1Encoder *enc, WinPrAsn1_IA5STRING ia5)

WINPR_API size_t	WinPrAsn1EncGeneralString (WinPrAsn1Encoder *enc, WinPrAsn1_STRING str)

WINPR_API size_t	WinPrAsn1EncContextualIA5String (WinPrAsn1Encoder *enc, WinPrAsn1_tagId tagId, WinPrAsn1_IA5STRING ia5)

WINPR_API size_t	WinPrAsn1EncUtcTime (WinPrAsn1Encoder enc, const WinPrAsn1_UTCTIME utc)

WINPR_API size_t	WinPrAsn1EncContextualUtcTime (WinPrAsn1Encoder enc, WinPrAsn1_tagId tagId, const WinPrAsn1_UTCTIME utc)

WINPR_API BOOL	WinPrAsn1EncStreamSize (WinPrAsn1Encoder enc, size_t s)

WINPR_API BOOL	WinPrAsn1EncToStream (WinPrAsn1Encoder enc, wStream s)

Macro Definition Documentation

◆ ER_TAG_MASK

#define ER_TAG_MASK 0x1F

WinPR: Windows Portable Runtime ASN1 encoder / decoder

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Typedef Documentation

◆ WinPrAsn1_BOOL

typedef BOOL WinPrAsn1_BOOL

◆ WinPrAsn1_ENUMERATED

typedef INT32 WinPrAsn1_ENUMERATED

◆ WinPrAsn1_IA5STRING

typedef char* WinPrAsn1_IA5STRING

◆ WinPrAsn1_INTEGER

typedef INT32 WinPrAsn1_INTEGER

◆ WinPrAsn1_OctetString

typedef WinPrAsn1_MemoryChunk WinPrAsn1_OctetString

◆ WinPrAsn1_OID

typedef WinPrAsn1_MemoryChunk WinPrAsn1_OID

◆ WinPrAsn1_STRING

typedef char* WinPrAsn1_STRING

◆ WinPrAsn1_tag

typedef BYTE WinPrAsn1_tag

◆ WinPrAsn1_tagId

typedef BYTE WinPrAsn1_tagId

Enumeration Type Documentation

◆ anonymous enum

anonymous enum

Enumerator
ER_TAG_BOOLEAN
ER_TAG_INTEGER
ER_TAG_BIT_STRING
ER_TAG_OCTET_STRING
ER_TAG_NULL
ER_TAG_OBJECT_IDENTIFIER
ER_TAG_ENUMERATED
ER_TAG_UTF8STRING
ER_TAG_PRINTABLE_STRING
ER_TAG_IA5STRING
ER_TAG_UTCTIME
ER_TAG_GENERAL_STRING
ER_TAG_GENERALIZED_TIME
ER_TAG_APP
ER_TAG_SEQUENCE
ER_TAG_SEQUENCE_OF
ER_TAG_SET
ER_TAG_SET_OF
ER_TAG_CONTEXTUAL

◆ WinPrAsn1EncodingRule

enum WinPrAsn1EncodingRule

rules for encoding

Enumerator
WINPR_ASN1_BER
WINPR_ASN1_DER

Function Documentation

◆ WinPrAsn1DecGetStream()

WINPR_API wStream WinPrAsn1DecGetStream ( WinPrAsn1Decoder * dec )

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◆ WinPrAsn1Decoder_Init()

WINPR_API void WinPrAsn1Decoder_Init	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1EncodingRule	encoding,
		wStream *	source
	)

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◆ WinPrAsn1Decoder_InitMem()

WINPR_API void WinPrAsn1Decoder_InitMem	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1EncodingRule	encoding,
		const BYTE *	source,
		size_t	len
	)

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◆ WinPrAsn1DecPeekContextualTag()

WINPR_API size_t WinPrAsn1DecPeekContextualTag	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_tagId *	tagId,
		WinPrAsn1Decoder *	ctxtDec
	)

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◆ WinPrAsn1DecPeekTag()

WINPR_API BOOL WinPrAsn1DecPeekTag	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_tag *	tag
	)

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◆ WinPrAsn1DecPeekTagAndLen()

WINPR_API size_t WinPrAsn1DecPeekTagAndLen	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_tag *	tag,
		size_t *	len
	)

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◆ WinPrAsn1DecReadApp()

WINPR_API size_t WinPrAsn1DecReadApp	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_tagId *	tagId,
		WinPrAsn1Decoder *	setDec
	)

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◆ WinPrAsn1DecReadBoolean()

WINPR_API size_t WinPrAsn1DecReadBoolean	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_BOOL *	target
	)

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◆ WinPrAsn1DecReadContextualBool()

WINPR_API size_t WinPrAsn1DecReadContextualBool	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_tagId	tagId,
		BOOL *	error,
		WinPrAsn1_BOOL *	target
	)

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◆ WinPrAsn1DecReadContextualInteger()

WINPR_API size_t WinPrAsn1DecReadContextualInteger	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_tagId	tagId,
		BOOL *	error,
		WinPrAsn1_INTEGER *	target
	)

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◆ WinPrAsn1DecReadContextualOctetString()

WINPR_API size_t WinPrAsn1DecReadContextualOctetString	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_tagId	tagId,
		BOOL *	error,
		WinPrAsn1_OctetString *	target,
		BOOL	allocate
	)

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◆ WinPrAsn1DecReadContextualOID()

WINPR_API size_t WinPrAsn1DecReadContextualOID	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_tagId	tagId,
		BOOL *	error,
		WinPrAsn1_OID *	target,
		BOOL	allocate
	)

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◆ WinPrAsn1DecReadContextualSequence()

WINPR_API size_t WinPrAsn1DecReadContextualSequence	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_tagId	tagId,
		BOOL *	error,
		WinPrAsn1Decoder *	target
	)

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◆ WinPrAsn1DecReadContextualTag()

WINPR_API size_t WinPrAsn1DecReadContextualTag	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_tagId *	tagId,
		WinPrAsn1Decoder *	ctxtDec
	)

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◆ WinPrAsn1DecReadEnumerated()

WINPR_API size_t WinPrAsn1DecReadEnumerated	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_ENUMERATED *	target
	)

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◆ WinPrAsn1DecReadGeneralString()

WINPR_API size_t WinPrAsn1DecReadGeneralString	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_STRING *	target
	)

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◆ WinPrAsn1DecReadIA5String()

WINPR_API size_t WinPrAsn1DecReadIA5String	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_IA5STRING *	target
	)

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◆ WinPrAsn1DecReadInteger()

WINPR_API size_t WinPrAsn1DecReadInteger	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_INTEGER *	target
	)

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◆ WinPrAsn1DecReadNull()

WINPR_API size_t WinPrAsn1DecReadNull ( WinPrAsn1Decoder * dec )

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◆ WinPrAsn1DecReadOctetString()

WINPR_API size_t WinPrAsn1DecReadOctetString	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_OctetString *	target,
		BOOL	allocate
	)

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◆ WinPrAsn1DecReadOID()

WINPR_API size_t WinPrAsn1DecReadOID	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_OID *	target,
		BOOL	allocate
	)

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◆ WinPrAsn1DecReadSequence()

WINPR_API size_t WinPrAsn1DecReadSequence	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1Decoder *	seqDec
	)

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◆ WinPrAsn1DecReadSet()

WINPR_API size_t WinPrAsn1DecReadSet	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1Decoder *	setDec
	)

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◆ WinPrAsn1DecReadTagAndLen()

WINPR_API size_t WinPrAsn1DecReadTagAndLen	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_tag *	tag,
		size_t *	len
	)

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◆ WinPrAsn1DecReadTagLenValue()

WINPR_API size_t WinPrAsn1DecReadTagLenValue	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_tag *	tag,
		size_t *	len,
		WinPrAsn1Decoder *	value
	)

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◆ WinPrAsn1DecReadUtcTime()

WINPR_API size_t WinPrAsn1DecReadUtcTime	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_UTCTIME *	target
	)

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◆ WinPrAsn1EncAppContainer()

WINPR_API BOOL WinPrAsn1EncAppContainer	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_tagId	tagId
	)

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◆ WinPrAsn1EncBoolean()

WINPR_API size_t WinPrAsn1EncBoolean	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_BOOL	b
	)

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◆ WinPrAsn1EncContextualBoolean()

WINPR_API size_t WinPrAsn1EncContextualBoolean	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_tagId	tagId,
		WinPrAsn1_BOOL	b
	)

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◆ WinPrAsn1EncContextualContainer()

WINPR_API BOOL WinPrAsn1EncContextualContainer	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_tagId	tagId
	)

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◆ WinPrAsn1EncContextualEnumerated()

WINPR_API size_t WinPrAsn1EncContextualEnumerated	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_tagId	tagId,
		WinPrAsn1_ENUMERATED	e
	)

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◆ WinPrAsn1EncContextualIA5String()

WINPR_API size_t WinPrAsn1EncContextualIA5String	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_tagId	tagId,
		WinPrAsn1_IA5STRING	ia5
	)

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◆ WinPrAsn1EncContextualInteger()

WINPR_API size_t WinPrAsn1EncContextualInteger	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_tagId	tagId,
		WinPrAsn1_INTEGER	integer
	)

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◆ WinPrAsn1EncContextualOctetString()

WINPR_API size_t WinPrAsn1EncContextualOctetString	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_tagId	tagId,
		const WinPrAsn1_OctetString *	oid
	)

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◆ WinPrAsn1EncContextualOctetStringContainer()

WINPR_API BOOL WinPrAsn1EncContextualOctetStringContainer	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_tagId	tagId
	)

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◆ WinPrAsn1EncContextualOID()

WINPR_API size_t WinPrAsn1EncContextualOID	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_tagId	tagId,
		const WinPrAsn1_OID *	oid
	)

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◆ WinPrAsn1EncContextualRawContent()

WINPR_API size_t WinPrAsn1EncContextualRawContent	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_tagId	tagId,
		const WinPrAsn1_MemoryChunk *	c
	)

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◆ WinPrAsn1EncContextualSeqContainer()

WINPR_API BOOL WinPrAsn1EncContextualSeqContainer	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_tagId	tagId
	)

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◆ WinPrAsn1EncContextualSetContainer()

WINPR_API BOOL WinPrAsn1EncContextualSetContainer	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_tagId	tagId
	)

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◆ WinPrAsn1EncContextualUtcTime()

WINPR_API size_t WinPrAsn1EncContextualUtcTime	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_tagId	tagId,
		const WinPrAsn1_UTCTIME *	utc
	)

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◆ WinPrAsn1EncEndContainer()

WINPR_API size_t WinPrAsn1EncEndContainer ( WinPrAsn1Encoder * enc )

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◆ WinPrAsn1EncEnumerated()

WINPR_API size_t WinPrAsn1EncEnumerated	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_ENUMERATED	e
	)

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◆ WinPrAsn1EncGeneralString()

WINPR_API size_t WinPrAsn1EncGeneralString	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_STRING	str
	)

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◆ WinPrAsn1EncIA5String()

WINPR_API size_t WinPrAsn1EncIA5String	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_IA5STRING	ia5
	)

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◆ WinPrAsn1EncInteger()

WINPR_API size_t WinPrAsn1EncInteger	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_INTEGER	integer
	)

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◆ WinPrAsn1EncOctetString()

WINPR_API size_t WinPrAsn1EncOctetString	(	WinPrAsn1Encoder *	enc,
		const WinPrAsn1_OctetString *	oid
	)

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◆ WinPrAsn1EncOctetStringContainer()

WINPR_API BOOL WinPrAsn1EncOctetStringContainer ( WinPrAsn1Encoder * enc )

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◆ WinPrAsn1Encoder_Free()

WINPR_API void WinPrAsn1Encoder_Free ( WinPrAsn1Encoder ** penc )

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◆ WinPrAsn1Encoder_New()

WINPR_API WinPrAsn1Encoder* WinPrAsn1Encoder_New ( WinPrAsn1EncodingRule encoding )

The encoder is implemented with the goals to:

have an API which is convenient to use (avoid computing inner elements size)
hide the BER/DER encoding details
avoid multiple copies and memory moves when building the content

To achieve this, the encoder contains a big memory block (encoder->pool), and various chunks (encoder->chunks) pointing to that memory block. The idea is to reserve some space in the pool for the container headers when we start a new container element. For example when a sequence is started we reserve 6 bytes which is the maximum size: byte0 + length. Then fill the content of the sequence in further chunks. When a container is closed, we compute the inner size (by adding the size of inner chunks), we write the headers bytes, and we adjust the chunk size accordingly.

For example to encode: SEQ IASTRING(test1) INTEGER(200)

with this code:

WinPrAsn1EncSeqContainer(enc);
WinPrAsn1EncIA5String(enc, "test1");
WinPrAsn1EncInteger(enc, 200);

Memory pool and chunks would look like:

[ reserved for seq][string|5|"test1"][integer|0x81|200] (6 bytes) |--------------—||-------------------------------—| ^ ^ | | chunk0 chunk1

As we try to compact chunks as much as we can, we managed to encode the ia5string and the integer using the same chunk.

When the sequence is closed with:

WinPrAsn1EncEndContainer(enc);

The final pool and chunks will look like:

XXXXXX[seq headers][string|5|"test1"][integer|0x81|200]

  |-----------||----------------------------------|
  ^            ^
  |            |
chunk0       chunk1

The generated content can be retrieved using:

WinPrAsn1EncToStream(enc, targetStream);

It will sequentially write all the chunks in the given target stream.

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◆ WinPrAsn1Encoder_Reset()

WINPR_API void WinPrAsn1Encoder_Reset ( WinPrAsn1Encoder * enc )

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◆ WinPrAsn1EncOID()

WINPR_API size_t WinPrAsn1EncOID	(	WinPrAsn1Encoder *	enc,
		const WinPrAsn1_OID *	oid
	)

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◆ WinPrAsn1EncRawContent()

WINPR_API size_t WinPrAsn1EncRawContent	(	WinPrAsn1Encoder *	enc,
		const WinPrAsn1_MemoryChunk *	c
	)

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◆ WinPrAsn1EncSeqContainer()

WINPR_API BOOL WinPrAsn1EncSeqContainer ( WinPrAsn1Encoder * enc )

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◆ WinPrAsn1EncSetContainer()

WINPR_API BOOL WinPrAsn1EncSetContainer ( WinPrAsn1Encoder * enc )

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◆ WinPrAsn1EncStreamSize()

WINPR_API BOOL WinPrAsn1EncStreamSize	(	WinPrAsn1Encoder *	enc,
		size_t *	s
	)

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◆ WinPrAsn1EncToStream()

WINPR_API BOOL WinPrAsn1EncToStream	(	WinPrAsn1Encoder *	enc,
		wStream *	s
	)

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◆ WinPrAsn1EncUtcTime()

WINPR_API size_t WinPrAsn1EncUtcTime	(	WinPrAsn1Encoder *	enc,
		const WinPrAsn1_UTCTIME *	utc
	)

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◆ WinPrAsn1FreeOctetString()

WINPR_API void WinPrAsn1FreeOctetString ( WinPrAsn1_OctetString * octets )

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◆ WinPrAsn1FreeOID()

WINPR_API void WinPrAsn1FreeOID ( WinPrAsn1_OID * poid )

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Data Structures

Macros

Typedefs

Enumerations

Functions

Macro Definition Documentation

◆ ER_TAG_MASK

Typedef Documentation

◆ WinPrAsn1_BOOL

◆ WinPrAsn1_ENUMERATED

◆ WinPrAsn1_IA5STRING

◆ WinPrAsn1_INTEGER

◆ WinPrAsn1_OctetString

◆ WinPrAsn1_OID

◆ WinPrAsn1_STRING

◆ WinPrAsn1_tag

◆ WinPrAsn1_tagId

Enumeration Type Documentation

◆ anonymous enum

◆ WinPrAsn1EncodingRule

Function Documentation

◆ WinPrAsn1DecGetStream()

◆ WinPrAsn1Decoder_Init()

◆ WinPrAsn1Decoder_InitMem()

◆ WinPrAsn1DecPeekContextualTag()

◆ WinPrAsn1DecPeekTag()

◆ WinPrAsn1DecPeekTagAndLen()

◆ WinPrAsn1DecReadApp()

◆ WinPrAsn1DecReadBoolean()

◆ WinPrAsn1DecReadContextualBool()

◆ WinPrAsn1DecReadContextualInteger()

◆ WinPrAsn1DecReadContextualOctetString()

◆ WinPrAsn1DecReadContextualOID()

◆ WinPrAsn1DecReadContextualSequence()

◆ WinPrAsn1DecReadContextualTag()

◆ WinPrAsn1DecReadEnumerated()

◆ WinPrAsn1DecReadGeneralString()

◆ WinPrAsn1DecReadIA5String()

◆ WinPrAsn1DecReadInteger()

◆ WinPrAsn1DecReadNull()

◆ WinPrAsn1DecReadOctetString()

◆ WinPrAsn1DecReadOID()

◆ WinPrAsn1DecReadSequence()

◆ WinPrAsn1DecReadSet()

◆ WinPrAsn1DecReadTagAndLen()

◆ WinPrAsn1DecReadTagLenValue()

◆ WinPrAsn1DecReadUtcTime()

◆ WinPrAsn1EncAppContainer()

◆ WinPrAsn1EncBoolean()

◆ WinPrAsn1EncContextualBoolean()

◆ WinPrAsn1EncContextualContainer()

◆ WinPrAsn1EncContextualEnumerated()

◆ WinPrAsn1EncContextualIA5String()

◆ WinPrAsn1EncContextualInteger()

◆ WinPrAsn1EncContextualOctetString()

◆ WinPrAsn1EncContextualOctetStringContainer()

◆ WinPrAsn1EncContextualOID()

◆ WinPrAsn1EncContextualRawContent()

◆ WinPrAsn1EncContextualSeqContainer()

◆ WinPrAsn1EncContextualSetContainer()

◆ WinPrAsn1EncContextualUtcTime()

◆ WinPrAsn1EncEndContainer()

◆ WinPrAsn1EncEnumerated()

◆ WinPrAsn1EncGeneralString()

◆ WinPrAsn1EncIA5String()

◆ WinPrAsn1EncInteger()

◆ WinPrAsn1EncOctetString()

◆ WinPrAsn1EncOctetStringContainer()

◆ WinPrAsn1Encoder_Free()

◆ WinPrAsn1Encoder_New()

◆ WinPrAsn1Encoder_Reset()

◆ WinPrAsn1EncOID()

◆ WinPrAsn1EncRawContent()

◆ WinPrAsn1EncSeqContainer()

◆ WinPrAsn1EncSetContainer()

◆ WinPrAsn1EncStreamSize()

◆ WinPrAsn1EncToStream()

◆ WinPrAsn1EncUtcTime()

◆ WinPrAsn1FreeOctetString()

◆ WinPrAsn1FreeOID()