etls

package
v0.0.0-...-006e37e Latest Latest
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 Go to latest Published: Jan 8, 2020 License: MIT Imports: 5 Imported by: 0

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Constants

View Source 
const (
	ETLSAlertWarning      ETLSAlertLevel = 1
	ETLSAlertFatal        ETLSAlertLevel = 2
	ETLSAlertUnknownLevel ETLSAlertLevel = 255

	ETLSAlertCloseNotify               ETLSAlertDescr = 0
	ETLSAlertUnexpectedMessage         ETLSAlertDescr = 10
	ETLSAlertBadRecordMac              ETLSAlertDescr = 20
	ETLSAlertDecryptionFailedRESERVED  ETLSAlertDescr = 21
	ETLSAlertRecordOverflow            ETLSAlertDescr = 22
	ETLSAlertDecompressionFailure      ETLSAlertDescr = 30
	ETLSAlertHandshakeFailure          ETLSAlertDescr = 40
	ETLSAlertNoCertificateRESERVED     ETLSAlertDescr = 41
	ETLSAlertBadCertificate            ETLSAlertDescr = 42
	ETLSAlertUnsupportedCertificate    ETLSAlertDescr = 43
	ETLSAlertCertificateRevoked        ETLSAlertDescr = 44
	ETLSAlertCertificateExpired        ETLSAlertDescr = 45
	ETLSAlertCertificateUnknown        ETLSAlertDescr = 46
	ETLSAlertIllegalParameter          ETLSAlertDescr = 47
	ETLSAlertUnknownCa                 ETLSAlertDescr = 48
	ETLSAlertAccessDenied              ETLSAlertDescr = 49
	ETLSAlertDecodeError               ETLSAlertDescr = 50
	ETLSAlertDecryptError              ETLSAlertDescr = 51
	ETLSAlertExportRestrictionRESERVED ETLSAlertDescr = 60
	ETLSAlertProtocolVersion           ETLSAlertDescr = 70
	ETLSAlertInsufficientSecurity      ETLSAlertDescr = 71
	ETLSAlertInternalError             ETLSAlertDescr = 80
	ETLSAlertUserCanceled              ETLSAlertDescr = 90
	ETLSAlertNoRenegotiation           ETLSAlertDescr = 100
	ETLSAlertUnsupportedExtension      ETLSAlertDescr = 110
	ETLSAlertUnknownDescription        ETLSAlertDescr = 255
)

Variables

View Source 
var LayerTypeETLS gopacket.LayerType

Functions

This section is empty.

Types

type CertificateMsg 

type CertificateMsg struct {
	Certificates [][]byte
	// contains filtered or unexported fields
}

type ClientHelloMsg 

type ClientHelloMsg struct {
	AllExtensions []uint16
	Vers          uint16

	CipherSuites []uint16

	SupportedCurves []CurveID
	SupportedPoints []uint8
	// contains filtered or unexported fields
}

type CurveID 

type CurveID uint16

CurveID is the type of a ETLS identifier for an elliptic curve. See https://www.iana.org/assignments/tls-parameters/tls-parameters.xml#tls-parameters-8 

const (
	CurveP256 CurveID = 23
	CurveP384 CurveID = 24
	CurveP521 CurveID = 25
	X25519    CurveID = 29
)

type ETLS 

type ETLS struct {
	layers.BaseLayer

	// ETLS Records
	ChangeCipherSpec []ETLSChangeCipherSpecRecord
	Handshake        []ETLSHandshakeRecord
	AppData          []ETLSAppDataRecord
	Alert            []ETLSAlertRecord
}

ETLS is actually a slide of ETLSrecord structures

func (*ETLS) CanDecode 

func (t *ETLS) CanDecode() gopacket.LayerClass

CanDecode implements gopacket.DecodingLayer.

func (*ETLS) DecodeFromBytes 

func (t *ETLS) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error

DecodeFromBytes decodes the slice into the ETLS struct.

func (*ETLS) LayerType 

func (t *ETLS) LayerType() gopacket.LayerType

LayerType returns gopacket.LayerTypeETLS.

func (*ETLS) NextLayerType 

func (t *ETLS) NextLayerType() gopacket.LayerType

NextLayerType implements gopacket.DecodingLayer.

func (*ETLS) Payload 

func (t *ETLS) Payload() []byte

Payload returns nil, since ETLS encrypted payload is inside ETLSAppDataRecord

type ETLSAlertDescr 

type ETLSAlertDescr uint8

ETLSAlertDescr defines the alert descrption data type

func (ETLSAlertDescr) String 

func (ad ETLSAlertDescr) String() string

Strings shows the ETLS alert description nicely formatted

type ETLSAlertLevel 

type ETLSAlertLevel uint8

ETLSAlertLevel defines the alert level data type

func (ETLSAlertLevel) String 

func (al ETLSAlertLevel) String() string

Strings shows the ETLS alert level nicely formatted

type ETLSAlertRecord 

type ETLSAlertRecord struct {
	ETLSRecordHeader

	Level       ETLSAlertLevel
	Description ETLSAlertDescr

	EncryptedMsg []byte
}

ETLSAlertRecord contains all the information that each Alert Record type should have

type ETLSAppDataRecord 

type ETLSAppDataRecord struct {
	ETLSRecordHeader
	Payload []byte
}

ETLSAppDataRecord contains all the information that each AppData Record types should have

type ETLSChangeCipherSpecRecord 

type ETLSChangeCipherSpecRecord struct {
	ETLSRecordHeader

	Message ETLSchangeCipherSpec
}

ETLSChangeCipherSpecRecord defines the type of data inside ChangeCipherSpec Record

type ETLSHandshakeRecord 

type ETLSHandshakeRecord struct {
	ETLSRecordHeader
	ETLSHandshakeMsgType     uint8
	ETLSHandshakeServerHello *ServerHelloMsg
	ETLSHandshakeClientHello *ClientHelloMsg
	ETLSHandshakeCertificate *CertificateMsg
}

ETLSHandshakeRecord defines the structure of a Handskake Record

type ETLSRecordHeader 

type ETLSRecordHeader struct {
	ContentType ETLSType
	Version     ETLSVersion
	Length      uint16
}

ETLSRecordHeader contains all the information that each ETLS Record types should have

type ETLSType 

type ETLSType uint8

ETLSType defines the type of data after the ETLS Record 

const (
	ETLSChangeCipherSpec ETLSType = 20
	ETLSAlert            ETLSType = 21
	ETLSHandshake        ETLSType = 22
	ETLSApplicationData  ETLSType = 23
	ETLSUnknown          ETLSType = 255
)

ETLSType known values.

func (ETLSType) String 

func (tt ETLSType) String() string

String shows the register type nicely formatted

type ETLSVersion 

type ETLSVersion uint16

ETLSVersion represents the ETLS version in numeric format

func (ETLSVersion) String 

func (tv ETLSVersion) String() string

Strings shows the ETLS version nicely formatted

type ETLSchangeCipherSpec 

type ETLSchangeCipherSpec uint8

ETLSchangeCipherSpec defines the message value inside ChangeCipherSpec Record 

const (
	ETLSChangecipherspecMessage ETLSchangeCipherSpec = 1
	ETLSChangecipherspecUnknown ETLSchangeCipherSpec = 255
)

func (ETLSchangeCipherSpec) String 

func (ccs ETLSchangeCipherSpec) String() string

String shows the message value nicely formatted

type Extension 

type Extension uint16

type ServerHelloMsg 

type ServerHelloMsg struct {
	AllExtensions []uint16
	Vers          uint16

	CipherSuite uint16
	// contains filtered or unexported fields
}

type SignatureScheme 

type SignatureScheme uint16

SignatureScheme identifies a signature algorithm supported by ETLS. See https://tools.ietf.org/html/draft-ietf-tls-tls13-18#section-4.2.3.

Source Files

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