wire

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 Go to latest Published: Sep 15, 2021 License: GPL-3.0, MIT Imports: 14 Imported by: 0

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Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func ComposeGQUICVersionNegotiation 

func ComposeGQUICVersionNegotiation(connID protocol.ConnectionID, versions []protocol.VersionNumber) []byte

ComposeGQUICVersionNegotiation composes a Version Negotiation Packet for gQUIC

func ComposeVersionNegotiation 

func ComposeVersionNegotiation(destConnID, srcConnID protocol.ConnectionID, versions []protocol.VersionNumber) ([]byte, error)

ComposeVersionNegotiation composes a Version Negotiation according to the IETF draft

func LogFrame 

func LogFrame(logger utils.Logger, frame Frame, sent bool)

LogFrame logs a frame, either sent or received

func WritePublicReset 

func WritePublicReset(connectionID protocol.ConnectionID, rejectedPacketNumber protocol.PacketNumber, nonceProof uint64) []byte

WritePublicReset writes a PUBLIC_RESET

Types

type AckFrame 

type AckFrame struct {
	AckRanges []AckRange // has to be ordered. The highest ACK range goes first, the lowest ACK range goes last
	DelayTime time.Duration
}

An AckFrame is an ACK frame

func (*AckFrame) AcksPacket 

func (f *AckFrame) AcksPacket(p protocol.PacketNumber) bool

AcksPacket determines if this ACK frame acks a certain packet number

func (*AckFrame) HasMissingRanges 

func (f *AckFrame) HasMissingRanges() bool

HasMissingRanges returns if this frame reports any missing packets

func (*AckFrame) LargestAcked 

func (f *AckFrame) LargestAcked() protocol.PacketNumber

LargestAcked is the largest acked packet number

func (*AckFrame) Length 

func (f *AckFrame) Length(version protocol.VersionNumber) protocol.ByteCount

Length of a written frame

func (*AckFrame) LowestAcked 

func (f *AckFrame) LowestAcked() protocol.PacketNumber

LowestAcked is the lowest acked packet number

func (*AckFrame) Write 

func (f *AckFrame) Write(b *bytes.Buffer, version protocol.VersionNumber) error

Write writes an ACK frame.

type AckRange 

type AckRange struct {
	Smallest protocol.PacketNumber
	Largest  protocol.PacketNumber
}

AckRange is an ACK range

func (AckRange) Len 

func (r AckRange) Len() protocol.PacketNumber

Len returns the number of packets contained in this ACK range

type BlockedFrame 

type BlockedFrame struct {
	Offset protocol.ByteCount
}

A BlockedFrame is a BLOCKED frame

func (*BlockedFrame) Length 

func (f *BlockedFrame) Length(version protocol.VersionNumber) protocol.ByteCount

Length of a written frame

func (*BlockedFrame) Write 

func (f *BlockedFrame) Write(b *bytes.Buffer, version protocol.VersionNumber) error

type ConnectionCloseFrame 

type ConnectionCloseFrame struct {
	ErrorCode    qerr.ErrorCode
	ReasonPhrase string
}

A ConnectionCloseFrame in QUIC

func (*ConnectionCloseFrame) Length 

func (f *ConnectionCloseFrame) Length(version protocol.VersionNumber) protocol.ByteCount

Length of a written frame

func (*ConnectionCloseFrame) Write 

func (f *ConnectionCloseFrame) Write(b *bytes.Buffer, version protocol.VersionNumber) error

Write writes an CONNECTION_CLOSE frame.

type Frame 

type Frame interface {
	Write(b *bytes.Buffer, version protocol.VersionNumber) error
	Length(version protocol.VersionNumber) protocol.ByteCount
}

A Frame in QUIC

func ParseNextFrame 

func ParseNextFrame(r *bytes.Reader, hdr *Header, v protocol.VersionNumber) (Frame, error)

ParseNextFrame parses the next frame It skips PADDING frames.

type GoawayFrame 

type GoawayFrame struct {
	ErrorCode      qerr.ErrorCode
	LastGoodStream protocol.StreamID
	ReasonPhrase   string
}

A GoawayFrame is a GOAWAY frame

func (*GoawayFrame) Length 

func (f *GoawayFrame) Length(version protocol.VersionNumber) protocol.ByteCount

Length of a written frame

func (*GoawayFrame) Write 

func (f *GoawayFrame) Write(b *bytes.Buffer, _ protocol.VersionNumber) error
type Header struct {
	IsPublicHeader bool

	Raw []byte

	Version protocol.VersionNumber

	DestConnectionID     protocol.ConnectionID
	SrcConnectionID      protocol.ConnectionID
	OrigDestConnectionID protocol.ConnectionID // only needed in the Retry packet

	PacketNumberLen protocol.PacketNumberLen
	PacketNumber    protocol.PacketNumber

	IsVersionNegotiation bool
	SupportedVersions    []protocol.VersionNumber // Version Number sent in a Version Negotiation Packet by the server

	// only needed for the gQUIC Public Header
	VersionFlag          bool
	ResetFlag            bool
	DiversificationNonce []byte

	// only needed for the IETF Header
	Type         protocol.PacketType
	IsLongHeader bool
	KeyPhase     int
	PayloadLen   protocol.ByteCount
	Token        []byte
}

Header is the header of a QUIC packet. It contains fields that are only needed for the gQUIC Public Header and the IETF draft Header.

func (*Header) GetLength 

func (h *Header) GetLength(v protocol.VersionNumber) (protocol.ByteCount, error)

GetLength determines the length of the Header.

func (*Header) Log 

func (h *Header) Log(logger utils.Logger)

Log logs the Header

func (*Header) Write 

func (h *Header) Write(b *bytes.Buffer, pers protocol.Perspective, ver protocol.VersionNumber) error

Write writes the Header.

type InvariantHeader 

type InvariantHeader struct {
	IsLongHeader     bool
	Version          protocol.VersionNumber
	SrcConnectionID  protocol.ConnectionID
	DestConnectionID protocol.ConnectionID
	// contains filtered or unexported fields
}

The InvariantHeader is the version independent part of the header

func ParseInvariantHeader 

func ParseInvariantHeader(b *bytes.Reader, shortHeaderConnIDLen int) (*InvariantHeader, error)

ParseInvariantHeader parses the version independent part of the header

func (*InvariantHeader) Parse 

func (iv *InvariantHeader) Parse(b *bytes.Reader, sentBy protocol.Perspective, ver protocol.VersionNumber) (*Header, error)

Parse parses the version dependent part of the header

type MaxDataFrame 

type MaxDataFrame struct {
	ByteOffset protocol.ByteCount
}

A MaxDataFrame carries flow control information for the connection

func (*MaxDataFrame) Length 

func (f *MaxDataFrame) Length(version protocol.VersionNumber) protocol.ByteCount

Length of a written frame

func (*MaxDataFrame) Write 

func (f *MaxDataFrame) Write(b *bytes.Buffer, version protocol.VersionNumber) error

Write writes a MAX_STREAM_DATA frame

type MaxStreamDataFrame 

type MaxStreamDataFrame struct {
	StreamID   protocol.StreamID
	ByteOffset protocol.ByteCount
}

A MaxStreamDataFrame carries flow control information for a stream

func (*MaxStreamDataFrame) Length 

func (f *MaxStreamDataFrame) Length(version protocol.VersionNumber) protocol.ByteCount

Length of a written frame

func (*MaxStreamDataFrame) Write 

func (f *MaxStreamDataFrame) Write(b *bytes.Buffer, version protocol.VersionNumber) error

Write writes a MAX_STREAM_DATA frame

type MaxStreamIDFrame 

type MaxStreamIDFrame struct {
	StreamID protocol.StreamID
}

A MaxStreamIDFrame is a MAX_STREAM_ID frame

func (*MaxStreamIDFrame) Length 

func (f *MaxStreamIDFrame) Length(protocol.VersionNumber) protocol.ByteCount

Length of a written frame

func (*MaxStreamIDFrame) Write 

func (f *MaxStreamIDFrame) Write(b *bytes.Buffer, _ protocol.VersionNumber) error

type PathChallengeFrame 

type PathChallengeFrame struct {
	Data [8]byte
}

A PathChallengeFrame is a PATH_CHALLENGE frame

func (*PathChallengeFrame) Length 

func (f *PathChallengeFrame) Length(_ protocol.VersionNumber) protocol.ByteCount

Length of a written frame

func (*PathChallengeFrame) Write 

func (f *PathChallengeFrame) Write(b *bytes.Buffer, _ protocol.VersionNumber) error

type PathResponseFrame 

type PathResponseFrame struct {
	Data [8]byte
}

A PathResponseFrame is a PATH_RESPONSE frame

func (*PathResponseFrame) Length 

func (f *PathResponseFrame) Length(_ protocol.VersionNumber) protocol.ByteCount

Length of a written frame

func (*PathResponseFrame) Write 

func (f *PathResponseFrame) Write(b *bytes.Buffer, _ protocol.VersionNumber) error

type PingFrame 

type PingFrame struct{}

A PingFrame is a ping frame

func (*PingFrame) Length 

func (f *PingFrame) Length(version protocol.VersionNumber) protocol.ByteCount

Length of a written frame

func (*PingFrame) Write 

func (f *PingFrame) Write(b *bytes.Buffer, version protocol.VersionNumber) error

type PublicReset 

type PublicReset struct {
	RejectedPacketNumber protocol.PacketNumber
	Nonce                uint64
}

A PublicReset is a PUBLIC_RESET

func ParsePublicReset 

func ParsePublicReset(r *bytes.Reader) (*PublicReset, error)

ParsePublicReset parses a PUBLIC_RESET

type RstStreamFrame 

type RstStreamFrame struct {
	StreamID protocol.StreamID
	// The error code is a uint32 in gQUIC, but a uint16 in IETF QUIC.
	// protocol.ApplicaitonErrorCode is a uint16, so larger values in gQUIC frames will be truncated.
	ErrorCode  protocol.ApplicationErrorCode
	ByteOffset protocol.ByteCount
}

A RstStreamFrame is a RST_STREAM frame in QUIC

func (*RstStreamFrame) Length 

func (f *RstStreamFrame) Length(version protocol.VersionNumber) protocol.ByteCount

Length of a written frame

func (*RstStreamFrame) Write 

func (f *RstStreamFrame) Write(b *bytes.Buffer, version protocol.VersionNumber) error

Write writes a RST_STREAM frame

type StopSendingFrame 

type StopSendingFrame struct {
	StreamID  protocol.StreamID
	ErrorCode protocol.ApplicationErrorCode
}

A StopSendingFrame is a STOP_SENDING frame

func (*StopSendingFrame) Length 

func (f *StopSendingFrame) Length(_ protocol.VersionNumber) protocol.ByteCount

Length of a written frame

func (*StopSendingFrame) Write 

func (f *StopSendingFrame) Write(b *bytes.Buffer, _ protocol.VersionNumber) error

type StopWaitingFrame 

type StopWaitingFrame struct {
	LeastUnacked    protocol.PacketNumber
	PacketNumberLen protocol.PacketNumberLen
	// PacketNumber is the packet number of the packet that this StopWaitingFrame will be sent with
	PacketNumber protocol.PacketNumber
}

A StopWaitingFrame in QUIC

func (*StopWaitingFrame) Length 

func (f *StopWaitingFrame) Length(_ protocol.VersionNumber) protocol.ByteCount

Length of a written frame

func (*StopWaitingFrame) Write 

func (f *StopWaitingFrame) Write(b *bytes.Buffer, v protocol.VersionNumber) error

type StreamBlockedFrame 

type StreamBlockedFrame struct {
	StreamID protocol.StreamID
	Offset   protocol.ByteCount
}

A StreamBlockedFrame in QUIC

func (*StreamBlockedFrame) Length 

func (f *StreamBlockedFrame) Length(version protocol.VersionNumber) protocol.ByteCount

Length of a written frame

func (*StreamBlockedFrame) Write 

func (f *StreamBlockedFrame) Write(b *bytes.Buffer, version protocol.VersionNumber) error

Write writes a STREAM_BLOCKED frame

type StreamFrame 

type StreamFrame struct {
	StreamID       protocol.StreamID
	FinBit         bool
	DataLenPresent bool
	Offset         protocol.ByteCount
	Data           []byte
}

A StreamFrame of QUIC

func (*StreamFrame) DataLen 

func (f *StreamFrame) DataLen() protocol.ByteCount

DataLen gives the length of data in bytes

func (*StreamFrame) Length 

func (f *StreamFrame) Length(version protocol.VersionNumber) protocol.ByteCount

Length returns the total length of the STREAM frame

func (*StreamFrame) MaxDataLen 

func (f *StreamFrame) MaxDataLen(maxSize protocol.ByteCount, version protocol.VersionNumber) protocol.ByteCount

MaxDataLen returns the maximum data length If 0 is returned, writing will fail (a STREAM frame must contain at least 1 byte of data).

func (*StreamFrame) MaybeSplitOffFrame 

func (f *StreamFrame) MaybeSplitOffFrame(maxSize protocol.ByteCount, version protocol.VersionNumber) (*StreamFrame, error)

MaybeSplitOffFrame splits a frame such that it is not bigger than n bytes. If n >= len(frame), nil is returned and nothing is modified.

func (*StreamFrame) Write 

func (f *StreamFrame) Write(b *bytes.Buffer, version protocol.VersionNumber) error

Write writes a STREAM frame

type StreamIDBlockedFrame 

type StreamIDBlockedFrame struct {
	StreamID protocol.StreamID
}

A StreamIDBlockedFrame is a STREAM_ID_BLOCKED frame

func (*StreamIDBlockedFrame) Length 

func (f *StreamIDBlockedFrame) Length(_ protocol.VersionNumber) protocol.ByteCount

Length of a written frame

func (*StreamIDBlockedFrame) Write 

func (f *StreamIDBlockedFrame) Write(b *bytes.Buffer, _ protocol.VersionNumber) error

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