#include <winpr/config.h>
#include <winpr/asn1.h>
#include <winpr/wlog.h>
#include <winpr/crt.h>
#include "../../log.h"

Macros
#define	TAG WINPR_TAG("asn1")

#define	MAX_STATIC_ITEMS 50

#define	WINPR_ASSERT_VALID_TAG(t) WINPR_ASSERT((t) < 64)

Enumerations
enum	ContainerType { ASN1_CONTAINER_SEQ , ASN1_CONTAINER_SET , ASN1_CONTAINER_APP , ASN1_CONTAINER_CONTEXT_ONLY , ASN1_CONTAINER_OCTETSTRING }
	type of encoder container More...

Functions
void	WinPrAsn1FreeOID (WinPrAsn1_OID *poid)

void	WinPrAsn1FreeOctetString (WinPrAsn1_OctetString *octets)

WinPrAsn1Encoder *	WinPrAsn1Encoder_New (WinPrAsn1EncodingRule encoding)

void	WinPrAsn1Encoder_Reset (WinPrAsn1Encoder *enc)

void	WinPrAsn1Encoder_Free (WinPrAsn1Encoder **penc)

static Asn1Chunk *	asn1enc_get_free_chunk (WinPrAsn1Encoder enc, size_t chunkSz, BOOL commit, size_t id)

static WinPrAsn1EncContainer *	asn1enc_get_free_container (WinPrAsn1Encoder enc, size_t id)

static size_t	lenBytes (size_t len)

static void	asn1WriteLen (wStream *s, size_t len)

static WinPrAsn1EncContainer *	getAsn1Container (WinPrAsn1Encoder *enc, ContainerType ctype, WinPrAsn1_tag tag, BOOL contextual, size_t maxLen)

BOOL	WinPrAsn1EncAppContainer (WinPrAsn1Encoder *enc, WinPrAsn1_tagId tagId)

BOOL	WinPrAsn1EncSeqContainer (WinPrAsn1Encoder *enc)

BOOL	WinPrAsn1EncSetContainer (WinPrAsn1Encoder *enc)

BOOL	WinPrAsn1EncContextualSeqContainer (WinPrAsn1Encoder *enc, WinPrAsn1_tagId tagId)

BOOL	WinPrAsn1EncContextualSetContainer (WinPrAsn1Encoder *enc, WinPrAsn1_tagId tagId)

BOOL	WinPrAsn1EncContextualContainer (WinPrAsn1Encoder *enc, WinPrAsn1_tagId tagId)

BOOL	WinPrAsn1EncOctetStringContainer (WinPrAsn1Encoder *enc)

BOOL	WinPrAsn1EncContextualOctetStringContainer (WinPrAsn1Encoder *enc, WinPrAsn1_tagId tagId)

size_t	WinPrAsn1EncEndContainer (WinPrAsn1Encoder *enc)

static BOOL	asn1_getWriteStream (WinPrAsn1Encoder enc, size_t len, wStream s)

size_t	WinPrAsn1EncRawContent (WinPrAsn1Encoder enc, const WinPrAsn1_MemoryChunk c)

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

static size_t	asn1IntegerLen (WinPrAsn1_INTEGER value)

static size_t	WinPrAsn1EncIntegerLike (WinPrAsn1Encoder *enc, WinPrAsn1_tag b, WinPrAsn1_INTEGER value)

size_t	WinPrAsn1EncInteger (WinPrAsn1Encoder *enc, WinPrAsn1_INTEGER value)

size_t	WinPrAsn1EncEnumerated (WinPrAsn1Encoder *enc, WinPrAsn1_ENUMERATED value)

static size_t	WinPrAsn1EncContextualIntegerLike (WinPrAsn1Encoder *enc, WinPrAsn1_tag tag, WinPrAsn1_tagId tagId, WinPrAsn1_INTEGER value)

size_t	WinPrAsn1EncContextualInteger (WinPrAsn1Encoder *enc, WinPrAsn1_tagId tagId, WinPrAsn1_INTEGER value)

size_t	WinPrAsn1EncContextualEnumerated (WinPrAsn1Encoder *enc, WinPrAsn1_tagId tagId, WinPrAsn1_ENUMERATED value)

size_t	WinPrAsn1EncBoolean (WinPrAsn1Encoder *enc, WinPrAsn1_BOOL b)

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

static size_t	WinPrAsn1EncMemoryChunk (WinPrAsn1Encoder enc, BYTE wireType, const WinPrAsn1_MemoryChunk mchunk)

size_t	WinPrAsn1EncOID (WinPrAsn1Encoder enc, const WinPrAsn1_OID oid)

size_t	WinPrAsn1EncOctetString (WinPrAsn1Encoder enc, const WinPrAsn1_OctetString octets)

size_t	WinPrAsn1EncIA5String (WinPrAsn1Encoder *enc, WinPrAsn1_IA5STRING ia5)

size_t	WinPrAsn1EncGeneralString (WinPrAsn1Encoder *enc, WinPrAsn1_STRING str)

static size_t	WinPrAsn1EncContextualMemoryChunk (WinPrAsn1Encoder enc, BYTE wireType, WinPrAsn1_tagId tagId, const WinPrAsn1_MemoryChunk mchunk)

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

size_t	WinPrAsn1EncContextualOctetString (WinPrAsn1Encoder enc, WinPrAsn1_tagId tagId, const WinPrAsn1_OctetString octets)

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

static void	write2digit (wStream *s, UINT8 v)

size_t	WinPrAsn1EncUtcTime (WinPrAsn1Encoder enc, const WinPrAsn1_UTCTIME utc)

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

BOOL	WinPrAsn1EncStreamSize (WinPrAsn1Encoder enc, size_t s)

BOOL	WinPrAsn1EncToStream (WinPrAsn1Encoder enc, wStream s)

void	WinPrAsn1Decoder_Init (WinPrAsn1Decoder decoder, WinPrAsn1EncodingRule encoding, wStream source)

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

BOOL	WinPrAsn1DecPeekTag (WinPrAsn1Decoder dec, WinPrAsn1_tag tag)

static size_t	readLen (wStream s, size_t len, BOOL derCheck)

static size_t	readTagAndLen (WinPrAsn1Decoder dec, wStream s, WinPrAsn1_tag tag, size_t len)

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

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

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

size_t	WinPrAsn1DecReadBoolean (WinPrAsn1Decoder dec, WinPrAsn1_BOOL target)

static size_t	WinPrAsn1DecReadIntegerLike (WinPrAsn1Decoder dec, WinPrAsn1_tag expectedTag, WinPrAsn1_INTEGER target)

size_t	WinPrAsn1DecReadInteger (WinPrAsn1Decoder dec, WinPrAsn1_INTEGER target)

size_t	WinPrAsn1DecReadEnumerated (WinPrAsn1Decoder dec, WinPrAsn1_ENUMERATED target)

static size_t	WinPrAsn1DecReadMemoryChunkLike (WinPrAsn1Decoder dec, WinPrAsn1_tag expectedTag, WinPrAsn1_MemoryChunk target, BOOL allocate)

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

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

size_t	WinPrAsn1DecReadIA5String (WinPrAsn1Decoder dec, WinPrAsn1_IA5STRING target)

size_t	WinPrAsn1DecReadGeneralString (WinPrAsn1Decoder dec, WinPrAsn1_STRING target)

static int	read2digits (wStream *s)

size_t	WinPrAsn1DecReadUtcTime (WinPrAsn1Decoder dec, WinPrAsn1_UTCTIME target)

size_t	WinPrAsn1DecReadNull (WinPrAsn1Decoder *dec)

static size_t	readConstructed (WinPrAsn1Decoder dec, wStream s, WinPrAsn1_tag tag, WinPrAsn1Decoder target)

size_t	WinPrAsn1DecReadApp (WinPrAsn1Decoder dec, WinPrAsn1_tagId tagId, WinPrAsn1Decoder *target)

size_t	WinPrAsn1DecReadSequence (WinPrAsn1Decoder dec, WinPrAsn1Decoder target)

size_t	WinPrAsn1DecReadSet (WinPrAsn1Decoder dec, WinPrAsn1Decoder target)

static size_t	readContextualTag (WinPrAsn1Decoder dec, wStream s, WinPrAsn1_tagId tagId, WinPrAsn1Decoder ctxtDec)

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

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

static size_t	readContextualHeader (WinPrAsn1Decoder dec, WinPrAsn1_tagId tagId, BOOL error, WinPrAsn1Decoder *content)

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

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

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

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

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

wStream	WinPrAsn1DecGetStream (WinPrAsn1Decoder *dec)

Macro Definition Documentation

◆ MAX_STATIC_ITEMS

#define MAX_STATIC_ITEMS 50

◆ TAG

#define TAG WINPR_TAG("asn1")

WinPR: Windows Portable Runtime ASN1 routines

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.

◆ WINPR_ASSERT_VALID_TAG

#define WINPR_ASSERT_VALID_TAG ( t ) WINPR_ASSERT((t) < 64)

Enumeration Type Documentation

◆ ContainerType

enum ContainerType

type of encoder container

Enumerator
ASN1_CONTAINER_SEQ
ASN1_CONTAINER_SET
ASN1_CONTAINER_APP
ASN1_CONTAINER_CONTEXT_ONLY
ASN1_CONTAINER_OCTETSTRING

Function Documentation

◆ asn1_getWriteStream()

static BOOL asn1_getWriteStream	(	WinPrAsn1Encoder *	enc,
		size_t	len,
		wStream *	s
	)

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◆ asn1enc_get_free_chunk()

static Asn1Chunk* asn1enc_get_free_chunk	(	WinPrAsn1Encoder *	enc,
		size_t	chunkSz,
		BOOL	commit,
		size_t *	id
	)

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◆ asn1enc_get_free_container()

static WinPrAsn1EncContainer* asn1enc_get_free_container	(	WinPrAsn1Encoder *	enc,
		size_t *	id
	)

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◆ asn1IntegerLen()

static size_t asn1IntegerLen ( WinPrAsn1_INTEGER value )

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◆ asn1WriteLen()

static void asn1WriteLen	(	wStream *	s,
		size_t	len
	)

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◆ getAsn1Container()

static WinPrAsn1EncContainer* getAsn1Container	(	WinPrAsn1Encoder *	enc,
		ContainerType	ctype,
		WinPrAsn1_tag	tag,
		BOOL	contextual,
		size_t	maxLen
	)

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◆ lenBytes()

static size_t lenBytes ( size_t len )

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◆ read2digits()

static int read2digits ( wStream * s )

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◆ readConstructed()

static size_t readConstructed	(	WinPrAsn1Decoder *	dec,
		wStream *	s,
		WinPrAsn1_tag *	tag,
		WinPrAsn1Decoder *	target
	)

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◆ readContextualHeader()

static size_t readContextualHeader	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_tagId	tagId,
		BOOL *	error,
		WinPrAsn1Decoder *	content
	)

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◆ readContextualTag()

static size_t readContextualTag	(	WinPrAsn1Decoder *	dec,
		wStream *	s,
		WinPrAsn1_tagId *	tagId,
		WinPrAsn1Decoder *	ctxtDec
	)

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◆ readLen()

static size_t readLen	(	wStream *	s,
		size_t *	len,
		BOOL	derCheck
	)

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◆ readTagAndLen()

static size_t readTagAndLen	(	WinPrAsn1Decoder *	dec,
		wStream *	s,
		WinPrAsn1_tag *	tag,
		size_t *	len
	)

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◆ WinPrAsn1DecGetStream()

wStream WinPrAsn1DecGetStream ( WinPrAsn1Decoder * dec )

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◆ WinPrAsn1Decoder_Init()

void WinPrAsn1Decoder_Init	(	WinPrAsn1Decoder *	decoder,
		WinPrAsn1EncodingRule	encoding,
		wStream *	source
	)

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◆ WinPrAsn1Decoder_InitMem()

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

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◆ WinPrAsn1DecPeekContextualTag()

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

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◆ WinPrAsn1DecPeekTag()

BOOL WinPrAsn1DecPeekTag	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_tag *	tag
	)

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◆ WinPrAsn1DecPeekTagAndLen()

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

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◆ WinPrAsn1DecReadApp()

size_t WinPrAsn1DecReadApp	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_tagId *	tagId,
		WinPrAsn1Decoder *	target
	)

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◆ WinPrAsn1DecReadBoolean()

size_t WinPrAsn1DecReadBoolean	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_BOOL *	target
	)

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◆ WinPrAsn1DecReadContextualBool()

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

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◆ WinPrAsn1DecReadContextualInteger()

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

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◆ WinPrAsn1DecReadContextualOctetString()

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

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◆ WinPrAsn1DecReadContextualOID()

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

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◆ WinPrAsn1DecReadContextualSequence()

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

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◆ WinPrAsn1DecReadContextualTag()

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

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◆ WinPrAsn1DecReadEnumerated()

size_t WinPrAsn1DecReadEnumerated	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_ENUMERATED *	target
	)

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◆ WinPrAsn1DecReadGeneralString()

size_t WinPrAsn1DecReadGeneralString	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_STRING *	target
	)

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◆ WinPrAsn1DecReadIA5String()

size_t WinPrAsn1DecReadIA5String	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_IA5STRING *	target
	)

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◆ WinPrAsn1DecReadInteger()

size_t WinPrAsn1DecReadInteger	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_INTEGER *	target
	)

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◆ WinPrAsn1DecReadIntegerLike()

static size_t WinPrAsn1DecReadIntegerLike	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_tag	expectedTag,
		WinPrAsn1_INTEGER *	target
	)

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◆ WinPrAsn1DecReadMemoryChunkLike()

static size_t WinPrAsn1DecReadMemoryChunkLike	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_tag	expectedTag,
		WinPrAsn1_MemoryChunk *	target,
		BOOL	allocate
	)

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◆ WinPrAsn1DecReadNull()

size_t WinPrAsn1DecReadNull ( WinPrAsn1Decoder * dec )

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◆ WinPrAsn1DecReadOctetString()

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

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◆ WinPrAsn1DecReadOID()

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

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◆ WinPrAsn1DecReadSequence()

size_t WinPrAsn1DecReadSequence	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1Decoder *	target
	)

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◆ WinPrAsn1DecReadSet()

size_t WinPrAsn1DecReadSet	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1Decoder *	target
	)

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◆ WinPrAsn1DecReadTagAndLen()

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

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◆ WinPrAsn1DecReadTagLenValue()

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

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◆ WinPrAsn1DecReadUtcTime()

size_t WinPrAsn1DecReadUtcTime	(	WinPrAsn1Decoder *	dec,
		WinPrAsn1_UTCTIME *	target
	)

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◆ WinPrAsn1EncAppContainer()

BOOL WinPrAsn1EncAppContainer	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_tagId	tagId
	)

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◆ WinPrAsn1EncBoolean()

size_t WinPrAsn1EncBoolean	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_BOOL	b
	)

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◆ WinPrAsn1EncContextualBoolean()

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

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◆ WinPrAsn1EncContextualContainer()

BOOL WinPrAsn1EncContextualContainer	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_tagId	tagId
	)

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◆ WinPrAsn1EncContextualEnumerated()

size_t WinPrAsn1EncContextualEnumerated	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_tagId	tagId,
		WinPrAsn1_ENUMERATED	value
	)

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◆ WinPrAsn1EncContextualIA5String()

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

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◆ WinPrAsn1EncContextualInteger()

size_t WinPrAsn1EncContextualInteger	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_tagId	tagId,
		WinPrAsn1_INTEGER	value
	)

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◆ WinPrAsn1EncContextualIntegerLike()

static size_t WinPrAsn1EncContextualIntegerLike	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_tag	tag,
		WinPrAsn1_tagId	tagId,
		WinPrAsn1_INTEGER	value
	)

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◆ WinPrAsn1EncContextualMemoryChunk()

static size_t WinPrAsn1EncContextualMemoryChunk	(	WinPrAsn1Encoder *	enc,
		BYTE	wireType,
		WinPrAsn1_tagId	tagId,
		const WinPrAsn1_MemoryChunk *	mchunk
	)

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◆ WinPrAsn1EncContextualOctetString()

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

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◆ WinPrAsn1EncContextualOctetStringContainer()

BOOL WinPrAsn1EncContextualOctetStringContainer	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_tagId	tagId
	)

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◆ WinPrAsn1EncContextualOID()

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

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◆ WinPrAsn1EncContextualRawContent()

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

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◆ WinPrAsn1EncContextualSeqContainer()

BOOL WinPrAsn1EncContextualSeqContainer	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_tagId	tagId
	)

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◆ WinPrAsn1EncContextualSetContainer()

BOOL WinPrAsn1EncContextualSetContainer	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_tagId	tagId
	)

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◆ WinPrAsn1EncContextualUtcTime()

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

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◆ WinPrAsn1EncEndContainer()

size_t WinPrAsn1EncEndContainer ( WinPrAsn1Encoder * enc )

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◆ WinPrAsn1EncEnumerated()

size_t WinPrAsn1EncEnumerated	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_ENUMERATED	value
	)

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◆ WinPrAsn1EncGeneralString()

size_t WinPrAsn1EncGeneralString	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_STRING	str
	)

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◆ WinPrAsn1EncIA5String()

size_t WinPrAsn1EncIA5String	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_IA5STRING	ia5
	)

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◆ WinPrAsn1EncInteger()

size_t WinPrAsn1EncInteger	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_INTEGER	value
	)

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◆ WinPrAsn1EncIntegerLike()

static size_t WinPrAsn1EncIntegerLike	(	WinPrAsn1Encoder *	enc,
		WinPrAsn1_tag	b,
		WinPrAsn1_INTEGER	value
	)

static

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◆ WinPrAsn1EncMemoryChunk()

static size_t WinPrAsn1EncMemoryChunk	(	WinPrAsn1Encoder *	enc,
		BYTE	wireType,
		const WinPrAsn1_MemoryChunk *	mchunk
	)

static

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◆ WinPrAsn1EncOctetString()

size_t WinPrAsn1EncOctetString	(	WinPrAsn1Encoder *	enc,
		const WinPrAsn1_OctetString *	octets
	)

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◆ WinPrAsn1EncOctetStringContainer()

BOOL WinPrAsn1EncOctetStringContainer ( WinPrAsn1Encoder * enc )

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◆ WinPrAsn1Encoder_Free()

void WinPrAsn1Encoder_Free ( WinPrAsn1Encoder ** penc )

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◆ WinPrAsn1Encoder_New()

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()

void WinPrAsn1Encoder_Reset ( WinPrAsn1Encoder * enc )

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◆ WinPrAsn1EncOID()

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

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◆ WinPrAsn1EncRawContent()

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

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◆ WinPrAsn1EncSeqContainer()

BOOL WinPrAsn1EncSeqContainer ( WinPrAsn1Encoder * enc )

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◆ WinPrAsn1EncSetContainer()

BOOL WinPrAsn1EncSetContainer ( WinPrAsn1Encoder * enc )

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◆ WinPrAsn1EncStreamSize()

BOOL WinPrAsn1EncStreamSize	(	WinPrAsn1Encoder *	enc,
		size_t *	s
	)

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◆ WinPrAsn1EncToStream()

BOOL WinPrAsn1EncToStream	(	WinPrAsn1Encoder *	enc,
		wStream *	s
	)

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◆ WinPrAsn1EncUtcTime()

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

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◆ WinPrAsn1FreeOctetString()

void WinPrAsn1FreeOctetString ( WinPrAsn1_OctetString * octets )

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◆ WinPrAsn1FreeOID()

void WinPrAsn1FreeOID ( WinPrAsn1_OID * poid )

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◆ write2digit()

static void write2digit	(	wStream *	s,
		UINT8	v
	)

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Macros

Enumerations

Functions

Macro Definition Documentation

◆ MAX_STATIC_ITEMS

◆ TAG

◆ WINPR_ASSERT_VALID_TAG

Enumeration Type Documentation

◆ ContainerType

Function Documentation

◆ asn1_getWriteStream()

◆ asn1enc_get_free_chunk()

◆ asn1enc_get_free_container()

◆ asn1IntegerLen()

◆ asn1WriteLen()

◆ getAsn1Container()

◆ lenBytes()

◆ read2digits()

◆ readConstructed()

◆ readContextualHeader()

◆ readContextualTag()

◆ readLen()

◆ readTagAndLen()

◆ WinPrAsn1DecGetStream()

◆ WinPrAsn1Decoder_Init()

◆ WinPrAsn1Decoder_InitMem()

◆ WinPrAsn1DecPeekContextualTag()

◆ WinPrAsn1DecPeekTag()

◆ WinPrAsn1DecPeekTagAndLen()

◆ WinPrAsn1DecReadApp()

◆ WinPrAsn1DecReadBoolean()

◆ WinPrAsn1DecReadContextualBool()

◆ WinPrAsn1DecReadContextualInteger()

◆ WinPrAsn1DecReadContextualOctetString()

◆ WinPrAsn1DecReadContextualOID()

◆ WinPrAsn1DecReadContextualSequence()

◆ WinPrAsn1DecReadContextualTag()

◆ WinPrAsn1DecReadEnumerated()

◆ WinPrAsn1DecReadGeneralString()

◆ WinPrAsn1DecReadIA5String()

◆ WinPrAsn1DecReadInteger()

◆ WinPrAsn1DecReadIntegerLike()

◆ WinPrAsn1DecReadMemoryChunkLike()

◆ WinPrAsn1DecReadNull()

◆ WinPrAsn1DecReadOctetString()

◆ WinPrAsn1DecReadOID()

◆ WinPrAsn1DecReadSequence()

◆ WinPrAsn1DecReadSet()

◆ WinPrAsn1DecReadTagAndLen()

◆ WinPrAsn1DecReadTagLenValue()

◆ WinPrAsn1DecReadUtcTime()

◆ WinPrAsn1EncAppContainer()

◆ WinPrAsn1EncBoolean()

◆ WinPrAsn1EncContextualBoolean()

◆ WinPrAsn1EncContextualContainer()

◆ WinPrAsn1EncContextualEnumerated()

◆ WinPrAsn1EncContextualIA5String()

◆ WinPrAsn1EncContextualInteger()

◆ WinPrAsn1EncContextualIntegerLike()

◆ WinPrAsn1EncContextualMemoryChunk()

◆ WinPrAsn1EncContextualOctetString()

◆ WinPrAsn1EncContextualOctetStringContainer()

◆ WinPrAsn1EncContextualOID()

◆ WinPrAsn1EncContextualRawContent()

◆ WinPrAsn1EncContextualSeqContainer()

◆ WinPrAsn1EncContextualSetContainer()

◆ WinPrAsn1EncContextualUtcTime()

◆ WinPrAsn1EncEndContainer()

◆ WinPrAsn1EncEnumerated()

◆ WinPrAsn1EncGeneralString()

◆ WinPrAsn1EncIA5String()

◆ WinPrAsn1EncInteger()

◆ WinPrAsn1EncIntegerLike()

◆ WinPrAsn1EncMemoryChunk()

◆ WinPrAsn1EncOctetString()

◆ WinPrAsn1EncOctetStringContainer()

◆ WinPrAsn1Encoder_Free()

◆ WinPrAsn1Encoder_New()

◆ WinPrAsn1Encoder_Reset()

◆ WinPrAsn1EncOID()