Dtls.h File Reference

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Classes
struct	DtlsSessionCallbacks
struct	DtlsKeyingMaterial
struct	__DtlsSession

Macros
#define	MAX_SRTP_MASTER_KEY_LEN   16
#define	MAX_SRTP_SALT_KEY_LEN   14
#define	MAX_DTLS_RANDOM_BYTES_LEN   32
#define	MAX_DTLS_MASTER_KEY_LEN   48
#define	GENERATED_CERTIFICATE_MAX_SIZE   4096
#define	GENERATED_CERTIFICATE_BITS   2048
#define	DTLS_CERT_MIN_SERIAL_NUM_SIZE   8
#define	DTLS_CERT_MAX_SERIAL_NUM_SIZE   20
#define	GENERATED_CERTIFICATE_DAYS   365
#define	GENERATED_CERTIFICATE_NAME   "KVS-WebRTC-Client"
#define	KEYING_EXTRACTOR_LABEL   "EXTRACTOR-dtls_srtp"
#define	DTLS_TRANSMISSION_INTERVAL   (200 * HUNDREDS_OF_NANOS_IN_A_MILLISECOND)
#define	DTLS_SESSION_TIMER_START_DELAY   (100 * HUNDREDS_OF_NANOS_IN_A_MILLISECOND)
#define	SECONDS_IN_A_DAY   (24 * 60 * 60LL)
#define	HUNDREDS_OF_NANOS_IN_A_DAY   (HUNDREDS_OF_NANOS_IN_AN_HOUR * 24LL)

Typedefs
typedef VOID(*	DtlsSessionOutboundPacketFunc) (UINT64, PBYTE, UINT32)
typedef VOID(*	DtlsSessionOnStateChange) (UINT64, RTC_DTLS_TRANSPORT_STATE)
typedef struct DtlsSessionCallbacks *	PDtlsSessionCallbacks
typedef struct DtlsKeyingMaterial *	PDtlsKeyingMaterial
typedef struct __DtlsSession	DtlsSession
typedef struct __DtlsSession *	PDtlsSession

Enumerations
enum	RTC_DTLS_TRANSPORT_STATE {   RTC_DTLS_TRANSPORT_STATE_NEW , RTC_DTLS_TRANSPORT_STATE_CONNECTING , RTC_DTLS_TRANSPORT_STATE_CONNECTED , RTC_DTLS_TRANSPORT_STATE_CLOSED ,   RTC_DTLS_TRANSPORT_STATE_FAILED }
enum	DTLS_HANDSHAKE_STATE { DTLS_STATE_HANDSHAKE_NEW , DTLS_STATE_HANDSHAKE_IN_PROGRESS , DTLS_STATE_HANDSHAKE_COMPLETED , DTLS_STATE_HANDSHAKE_ERROR }

Functions
STATUS	createDtlsSession (PDtlsSessionCallbacks, TIMER_QUEUE_HANDLE, INT32, BOOL, PRtcCertificate, PDtlsSession *)
STATUS	freeDtlsSession (PDtlsSession *)
STATUS	dtlsSessionStart (PDtlsSession, BOOL)
STATUS	dtlsSessionProcessPacket (PDtlsSession, PBYTE, PINT32)
STATUS	dtlsSessionIsInitFinished (PDtlsSession, PBOOL)
STATUS	dtlsSessionPopulateKeyingMaterial (PDtlsSession, PDtlsKeyingMaterial)
STATUS	dtlsSessionGetLocalCertificateFingerprint (PDtlsSession, PCHAR, UINT32)
STATUS	dtlsSessionVerifyRemoteCertificateFingerprint (PDtlsSession, PCHAR)
STATUS	dtlsSessionPutApplicationData (PDtlsSession, PBYTE, INT32)
STATUS	dtlsSessionShutdown (PDtlsSession)
STATUS	dtlsSessionOnOutBoundData (PDtlsSession, UINT64, DtlsSessionOutboundPacketFunc)
STATUS	dtlsSessionOnStateChange (PDtlsSession, UINT64, DtlsSessionOnStateChange)
STATUS	dtlsSessionHandshakeInThread (PDtlsSession, BOOL)
STATUS	dtlsValidateRtcCertificates (PRtcCertificate, PUINT32)
STATUS	dtlsSessionChangeState (PDtlsSession, RTC_DTLS_TRANSPORT_STATE)
STATUS	dtlsFillPseudoRandomBits (PBYTE, UINT32)

Macro Definition Documentation

DTLS_CERT_MAX_SERIAL_NUM_SIZE

#define DTLS_CERT_MAX_SERIAL_NUM_SIZE   20

DTLS_CERT_MIN_SERIAL_NUM_SIZE

#define DTLS_CERT_MIN_SERIAL_NUM_SIZE   8

DTLS_SESSION_TIMER_START_DELAY

#define DTLS_SESSION_TIMER_START_DELAY   (100 * HUNDREDS_OF_NANOS_IN_A_MILLISECOND)

DTLS_TRANSMISSION_INTERVAL

#define DTLS_TRANSMISSION_INTERVAL   (200 * HUNDREDS_OF_NANOS_IN_A_MILLISECOND)

GENERATED_CERTIFICATE_BITS

#define GENERATED_CERTIFICATE_BITS   2048

GENERATED_CERTIFICATE_DAYS

#define GENERATED_CERTIFICATE_DAYS   365

GENERATED_CERTIFICATE_MAX_SIZE

#define GENERATED_CERTIFICATE_MAX_SIZE   4096

GENERATED_CERTIFICATE_NAME

#define GENERATED_CERTIFICATE_NAME   "KVS-WebRTC-Client"

HUNDREDS_OF_NANOS_IN_A_DAY

#define HUNDREDS_OF_NANOS_IN_A_DAY   (HUNDREDS_OF_NANOS_IN_AN_HOUR * 24LL)

KEYING_EXTRACTOR_LABEL

#define KEYING_EXTRACTOR_LABEL   "EXTRACTOR-dtls_srtp"

MAX_DTLS_MASTER_KEY_LEN

#define MAX_DTLS_MASTER_KEY_LEN   48

MAX_DTLS_RANDOM_BYTES_LEN

#define MAX_DTLS_RANDOM_BYTES_LEN   32

MAX_SRTP_MASTER_KEY_LEN

#define MAX_SRTP_MASTER_KEY_LEN   16

MAX_SRTP_SALT_KEY_LEN

#define MAX_SRTP_SALT_KEY_LEN   14

SECONDS_IN_A_DAY

#define SECONDS_IN_A_DAY   (24 * 60 * 60LL)

Typedef Documentation

DtlsSession

typedef struct __DtlsSession DtlsSession

DtlsSessionOnStateChange

typedef VOID(* DtlsSessionOnStateChange) (UINT64, RTC_DTLS_TRANSPORT_STATE)

DtlsSessionOutboundPacketFunc

typedef VOID(* DtlsSessionOutboundPacketFunc) (UINT64, PBYTE, UINT32)

PDtlsKeyingMaterial

typedef struct DtlsKeyingMaterial * PDtlsKeyingMaterial

PDtlsSession

typedef struct __DtlsSession * PDtlsSession

PDtlsSessionCallbacks

typedef struct DtlsSessionCallbacks * PDtlsSessionCallbacks

Enumeration Type Documentation

DTLS_HANDSHAKE_STATE

enum DTLS_HANDSHAKE_STATE

Enumerator
DTLS_STATE_HANDSHAKE_NEW
DTLS_STATE_HANDSHAKE_IN_PROGRESS
DTLS_STATE_HANDSHAKE_COMPLETED
DTLS_STATE_HANDSHAKE_ERROR

RTC_DTLS_TRANSPORT_STATE

enum RTC_DTLS_TRANSPORT_STATE

Enumerator
RTC_DTLS_TRANSPORT_STATE_NEW
RTC_DTLS_TRANSPORT_STATE_CONNECTING
RTC_DTLS_TRANSPORT_STATE_CONNECTED
RTC_DTLS_TRANSPORT_STATE_CLOSED
RTC_DTLS_TRANSPORT_STATE_FAILED

Function Documentation

createDtlsSession()

STATUS createDtlsSession	(	PDtlsSessionCallbacks	pDtlsSessionCallbacks,
		TIMER_QUEUE_HANDLE	timerQueueHandle,
		INT32	certificateBits,
		BOOL	generateRSACertificate,
		PRtcCertificate	pRtcCertificates,
		PDtlsSession *	ppDtlsSession
	)

Create DTLS session. Not thread safe.

Parameters

PDtlsSessionCallbacks	- callbacks
TIMER_QUEUE_HANDLE	- timer handle to schedule timer task with
INT32	- size of generated certificate
BOOL	- whether to generate certificate or not
PRtcCertificate	- user provided certificate
PDtlsSession*	- pointer to created DtlsSession object

Returns

STATUS - status of operation

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dtlsFillPseudoRandomBits()

STATUS dtlsFillPseudoRandomBits	(	PBYTE	pBuf,
		UINT32	bufSize
	)

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dtlsSessionChangeState()

STATUS dtlsSessionChangeState	(	PDtlsSession	pDtlsSession,
		RTC_DTLS_TRANSPORT_STATE	newState
	)

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dtlsSessionGetLocalCertificateFingerprint()

STATUS dtlsSessionGetLocalCertificateFingerprint	(	PDtlsSession	pDtlsSession,
		PCHAR	pBuff,
		UINT32	buffLen
	)

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dtlsSessionHandshakeInThread()

STATUS dtlsSessionHandshakeInThread	(	PDtlsSession	pDtlsSession,
		BOOL	isServer
	)

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dtlsSessionIsInitFinished()

STATUS dtlsSessionIsInitFinished	(	PDtlsSession	pDtlsSession,
		PBOOL	pIsFinished
	)

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dtlsSessionOnOutBoundData()

STATUS dtlsSessionOnOutBoundData	(	PDtlsSession	pDtlsSession,
		UINT64	customData,
		DtlsSessionOutboundPacketFunc	callbackFn
	)

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dtlsSessionOnStateChange()

STATUS dtlsSessionOnStateChange	(	PDtlsSession	pDtlsSession,
		UINT64	customData,
		DtlsSessionOnStateChange	callbackFn
	)

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dtlsSessionPopulateKeyingMaterial()

STATUS dtlsSessionPopulateKeyingMaterial	(	PDtlsSession	pDtlsSession,
		PDtlsKeyingMaterial	pDtlsKeyingMaterial
	)

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dtlsSessionProcessPacket()

STATUS dtlsSessionProcessPacket	(	PDtlsSession	pDtlsSession,
		PBYTE	pData,
		PINT32	pDataLen
	)

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dtlsSessionPutApplicationData()

STATUS dtlsSessionPutApplicationData	(	PDtlsSession	pDtlsSession,
		PBYTE	pData,
		INT32	dataLen
	)

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dtlsSessionShutdown()

STATUS dtlsSessionShutdown

(

PDtlsSession

pDtlsSession

)

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dtlsSessionStart()

STATUS dtlsSessionStart	(	PDtlsSession	pDtlsSession,
		BOOL	isServer
	)

Start DTLS handshake. Not thread safe.

Parameters

PDtlsSession	- DtlsSession object
BOOL	- is server

Returns

STATUS - status of operation

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dtlsSessionVerifyRemoteCertificateFingerprint()

STATUS dtlsSessionVerifyRemoteCertificateFingerprint	(	PDtlsSession	pDtlsSession,
		PCHAR	pExpectedFingerprint
	)

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dtlsValidateRtcCertificates()

STATUS dtlsValidateRtcCertificates	(	PRtcCertificate	pRtcCertificates,
		PUINT32	pCount
	)

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freeDtlsSession()

STATUS freeDtlsSession

(

PDtlsSession *

ppDtlsSession

)

Free DTLS session. Not thread safe.

Parameters

PDtlsSession

- DtlsSession object to free

Returns

STATUS - status of operation

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