Stun.c File Reference

#include "../Include_i.h"

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Macros
#define	LOG_CLASS   "Stun"

Functions
STATUS	stunPackageIpAddr (PStunHeader pStunHeader, STUN_ATTRIBUTE_TYPE type, PKvsIpAddress pAddress, PBYTE pBuffer, PUINT32 pDataLen)
STATUS	serializeStunPacket (PStunPacket pStunPacket, PBYTE password, UINT32 passwordLen, BOOL generateMessageIntegrity, BOOL generateFingerprint, PBYTE pBuffer, PUINT32 pSize)
STATUS	deserializeStunPacket (PBYTE pStunBuffer, UINT32 bufferSize, PBYTE password, UINT32 passwordLen, PStunPacket *ppStunPacket)
STATUS	freeStunPacket (PStunPacket *ppStunPacket)
STATUS	createStunPacket (STUN_PACKET_TYPE stunPacketType, PBYTE transactionId, PStunPacket *ppStunPacket)
STATUS	appendStunAddressAttribute (PStunPacket pStunPacket, STUN_ATTRIBUTE_TYPE addressAttributeType, PKvsIpAddress pAddress)
STATUS	appendStunUsernameAttribute (PStunPacket pStunPacket, PCHAR userName)
STATUS	getStunAttribute (PStunPacket pStunPacket, STUN_ATTRIBUTE_TYPE attributeType, PStunAttributeHeader *ppStunAttribute)
STATUS	xorIpAddress (PKvsIpAddress pAddress, PBYTE pTransactionId)
STATUS	appendStunPriorityAttribute (PStunPacket pStunPacket, UINT32 priority)
STATUS	appendStunFlagAttribute (PStunPacket pStunPacket, STUN_ATTRIBUTE_TYPE attrType)
STATUS	appendStunLifetimeAttribute (PStunPacket pStunPacket, UINT32 lifetime)
STATUS	appendStunChangeRequestAttribute (PStunPacket pStunPacket, UINT32 changeFlag)
STATUS	appendStunRequestedTransportAttribute (PStunPacket pStunPacket, UINT8 protocol)
STATUS	appendStunRealmAttribute (PStunPacket pStunPacket, PCHAR realm)
STATUS	appendStunAllocationAddressFamily (PStunPacket pStunPacket, KVS_IP_FAMILY_TYPE ipFamily)
STATUS	appendStunNonceAttribute (PStunPacket pStunPacket, PBYTE nonce, UINT16 nonceLen)
STATUS	updateStunNonceAttribute (PStunPacket pStunPacket, PBYTE nonce, UINT16 nonceLen)
STATUS	appendStunErrorCodeAttribute (PStunPacket pStunPacket, PCHAR errorPhrase, UINT16 errorCode)
STATUS	appendStunIceControllAttribute (PStunPacket pStunPacket, STUN_ATTRIBUTE_TYPE attributeType, UINT64 tieBreaker)
STATUS	appendStunDataAttribute (PStunPacket pStunPacket, PBYTE data, UINT16 dataLen)
STATUS	appendStunChannelNumberAttribute (PStunPacket pStunPacket, UINT16 channelNumber)
UINT16	getPackagedStunAttributeSize (PStunAttributeHeader pStunAttributeHeader)
STATUS	getFirstAvailableStunAttribute (PStunPacket pStunPacket, PStunAttributeHeader *ppStunAttribute)

Macro Definition Documentation

LOG_CLASS

#define LOG_CLASS   "Stun"

Function Documentation

appendStunAddressAttribute()

STATUS appendStunAddressAttribute	(	PStunPacket	pStunPacket,
		STUN_ATTRIBUTE_TYPE	addressAttributeType,
		PKvsIpAddress	pAddress )

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appendStunAllocationAddressFamily()

STATUS appendStunAllocationAddressFamily	(	PStunPacket	pStunPacket,
		KVS_IP_FAMILY_TYPE	ipFamily )

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appendStunChangeRequestAttribute()

STATUS appendStunChangeRequestAttribute	(	PStunPacket	pStunPacket,
		UINT32	changeFlag )

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appendStunChannelNumberAttribute()

STATUS appendStunChannelNumberAttribute	(	PStunPacket	pStunPacket,
		UINT16	channelNumber )

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appendStunDataAttribute()

STATUS appendStunDataAttribute	(	PStunPacket	pStunPacket,
		PBYTE	data,
		UINT16	dataLen )

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appendStunErrorCodeAttribute()

STATUS appendStunErrorCodeAttribute	(	PStunPacket	pStunPacket,
		PCHAR	errorPhrase,
		UINT16	errorCode )

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appendStunFlagAttribute()

STATUS appendStunFlagAttribute	(	PStunPacket	pStunPacket,
		STUN_ATTRIBUTE_TYPE	attrType )

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appendStunIceControllAttribute()

STATUS appendStunIceControllAttribute	(	PStunPacket	pStunPacket,
		STUN_ATTRIBUTE_TYPE	attributeType,
		UINT64	tieBreaker )

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appendStunLifetimeAttribute()

STATUS appendStunLifetimeAttribute	(	PStunPacket	pStunPacket,
		UINT32	lifetime )

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appendStunNonceAttribute()

STATUS appendStunNonceAttribute	(	PStunPacket	pStunPacket,
		PBYTE	nonce,
		UINT16	nonceLen )

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appendStunPriorityAttribute()

STATUS appendStunPriorityAttribute	(	PStunPacket	pStunPacket,
		UINT32	priority )

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appendStunRealmAttribute()

STATUS appendStunRealmAttribute	(	PStunPacket	pStunPacket,
		PCHAR	realm )

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appendStunRequestedTransportAttribute()

STATUS appendStunRequestedTransportAttribute	(	PStunPacket	pStunPacket,
		UINT8	protocol )

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appendStunUsernameAttribute()

STATUS appendStunUsernameAttribute	(	PStunPacket	pStunPacket,
		PCHAR	userName )

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createStunPacket()

STATUS createStunPacket	(	STUN_PACKET_TYPE	stunPacketType,
		PBYTE	transactionId,
		PStunPacket *	ppStunPacket )

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deserializeStunPacket()

STATUS deserializeStunPacket	(	PBYTE	pStunBuffer,
		UINT32	bufferSize,
		PBYTE	password,
		UINT32	passwordLen,
		PStunPacket *	ppStunPacket )

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freeStunPacket()

STATUS freeStunPacket

(

PStunPacket *

ppStunPacket

)

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getFirstAvailableStunAttribute()

STATUS getFirstAvailableStunAttribute	(	PStunPacket	pStunPacket,
		PStunAttributeHeader *	ppStunAttribute )

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getPackagedStunAttributeSize()

UINT16 getPackagedStunAttributeSize

(

PStunAttributeHeader

pStunAttributeHeader

)

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getStunAttribute()

STATUS getStunAttribute	(	PStunPacket	pStunPacket,
		STUN_ATTRIBUTE_TYPE	attributeType,
		PStunAttributeHeader *	ppStunAttribute )

check if PStunPacket has an attribute of type STUN_ATTRIBUTE_TYPE. If so, return the first occurrence through PStunAttributeHeader*

Returns

STATUS of operations

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serializeStunPacket()

STATUS serializeStunPacket	(	PStunPacket	pStunPacket,
		PBYTE	password,
		UINT32	passwordLen,
		BOOL	generateMessageIntegrity,
		BOOL	generateFingerprint,
		PBYTE	pBuffer,
		PUINT32	pSize )

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stunPackageIpAddr()

STATUS stunPackageIpAddr	(	PStunHeader	pStunHeader,
		STUN_ATTRIBUTE_TYPE	type,
		PKvsIpAddress	pAddress,
		PBYTE	pBuffer,
		PUINT32	pDataLen )

Mapped address attribute structure https://tools.ietf.org/html/rfc5389#section-15.1

• 2 byte attribute type
• 2 byte attribute data len
• 2 byte address family
• 2 byte port
• 4 byte or 16 byte IP address

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updateStunNonceAttribute()

STATUS updateStunNonceAttribute	(	PStunPacket	pStunPacket,
		PBYTE	nonce,
		UINT16	nonceLen )

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xorIpAddress()

STATUS xorIpAddress	(	PKvsIpAddress	pAddress,
		PBYTE	pTransactionId )

xor an IP address in place

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