quic

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 Go to latest Published: Apr 3, 2023 License: MIT Imports: 36 Imported by: 0

README

A QUIC implementation in pure Go

PkgGoDev Code Coverage

quic-go is an implementation of the QUIC protocol (RFC 9000, RFC 9001, RFC 9002) in Go, including the Unreliable Datagram Extension (RFC 9221) and Datagram Packetization Layer Path MTU Discovery (DPLPMTUD, RFC 8899). It has support for HTTP/3 (RFC 9114), including QPACK (RFC 9204).

In addition to the RFCs listed above, it currently implements the IETF QUIC draft-29. Support for draft-29 will eventually be dropped, as it is phased out of the ecosystem.

Guides

We currently support Go 1.19.x and Go 1.20.x

Running tests:

go test ./...
QUIC without HTTP/3

Take a look at this echo example.

Usage

As a server

See the example server. Starting a QUIC server is very similar to the standard lib http in go:

http.Handle("/", http.FileServer(http.Dir(wwwDir)))
http3.ListenAndServeQUIC("localhost:4242", "/path/to/cert/chain.pem", "/path/to/privkey.pem", nil)
As a client

See the example client. Use a http3.RoundTripper as a Transport in a http.Client.

http.Client{
  Transport: &http3.RoundTripper{},
}

Projects using quic-go

Project Description Stars
AdGuardHome Free and open source, powerful network-wide ads & trackers blocking DNS server. GitHub Repo stars
algernon Small self-contained pure-Go web server with Lua, Markdown, HTTP/2, QUIC, Redis and PostgreSQL support GitHub Repo stars
caddy Fast, multi-platform web server with automatic HTTPS GitHub Repo stars
cloudflared A tunneling daemon that proxies traffic from the Cloudflare network to your origins GitHub Repo stars
go-libp2p libp2p implementation in Go, powering Kubo (IPFS) and Lotus (Filecoin), among others GitHub Repo stars
OONI Probe Next generation OONI Probe. Library and CLI tool. GitHub Repo stars
syncthing Open Source Continuous File Synchronization GitHub Repo stars
traefik The Cloud Native Application Proxy GitHub Repo stars
v2ray-core A platform for building proxies to bypass network restrictions GitHub Repo stars
YoMo Streaming Serverless Framework for Geo-distributed System GitHub Repo stars

Contributing

We are always happy to welcome new contributors! We have a number of self-contained issues that are suitable for first-time contributors, they are tagged with help wanted. If you have any questions, please feel free to reach out by opening an issue or leaving a comment.

Documentation

Index

Constants

View Source 
const (
	NoError                   = qerr.NoError
	InternalError             = qerr.InternalError
	ConnectionRefused         = qerr.ConnectionRefused
	FlowControlError          = qerr.FlowControlError
	StreamLimitError          = qerr.StreamLimitError
	StreamStateError          = qerr.StreamStateError
	FinalSizeError            = qerr.FinalSizeError
	FrameEncodingError        = qerr.FrameEncodingError
	TransportParameterError   = qerr.TransportParameterError
	ConnectionIDLimitError    = qerr.ConnectionIDLimitError
	ProtocolViolation         = qerr.ProtocolViolation
	InvalidToken              = qerr.InvalidToken
	ApplicationErrorErrorCode = qerr.ApplicationErrorErrorCode
	CryptoBufferExceeded      = qerr.CryptoBufferExceeded
	KeyUpdateError            = qerr.KeyUpdateError
	AEADLimitReached          = qerr.AEADLimitReached
	NoViablePathError         = qerr.NoViablePathError
)
View Source 
const (
	// VersionDraft29 is IETF QUIC draft-29
	VersionDraft29 = protocol.VersionDraft29
	// Version1 is RFC 9000
	Version1 = protocol.Version1
	Version2 = protocol.Version2
)

Variables

View Source 
var ConnectionTracingKey = connTracingCtxKey{}

ConnectionTracingKey can be used to associate a ConnectionTracer with a Connection. It is set on the Connection.Context() context, as well as on the context passed to logging.Tracer.NewConnectionTracer.

View Source 
var Err0RTTRejected = errors.New("0-RTT rejected")

Err0RTTRejected is the returned from: * Open{Uni}Stream{Sync} * Accept{Uni}Stream * Stream.Read and Stream.Write when the server rejects a 0-RTT connection attempt.

View Source 
var ErrServerClosed = errors.New("quic: Server closed")

ErrServerClosed is returned by the Listener or EarlyListener's Accept method after a call to Close.

View Source 
var QUICVersionContextKey = handshake.QUICVersionContextKey

QUICVersionContextKey can be used to find out the QUIC version of a TLS handshake from the context returned by tls.Config.ClientHelloInfo.Context.

Functions

This section is empty.

Types

type ApplicationError 

type ApplicationError = qerr.ApplicationError

type ApplicationErrorCode 

type ApplicationErrorCode = qerr.ApplicationErrorCode

type ClientToken 

type ClientToken struct {
	// contains filtered or unexported fields
}

A ClientToken is a token received by the client. It can be used to skip address validation on future connection attempts.

type Config 

type Config struct {
	// The QUIC versions that can be negotiated.
	// If not set, it uses all versions available.
	Versions []VersionNumber
	// The length of the connection ID in bytes.
	// It can be 0, or any value between 4 and 18.
	// If not set, the interpretation depends on where the Config is used:
	// If used for dialing an address, a 0 byte connection ID will be used.
	// If used for a server, or dialing on a packet conn, a 4 byte connection ID will be used.
	// When dialing on a packet conn, the ConnectionIDLength value must be the same for every Dial call.
	ConnectionIDLength int
	// An optional ConnectionIDGenerator to be used for ConnectionIDs generated during the lifecycle of a QUIC connection.
	// The goal is to give some control on how connection IDs, which can be useful in some scenarios, in particular for servers.
	// By default, if not provided, random connection IDs with the length given by ConnectionIDLength is used.
	// Otherwise, if one is provided, then ConnectionIDLength is ignored.
	ConnectionIDGenerator ConnectionIDGenerator
	// HandshakeIdleTimeout is the idle timeout before completion of the handshake.
	// Specifically, if we don't receive any packet from the peer within this time, the connection attempt is aborted.
	// If this value is zero, the timeout is set to 5 seconds.
	HandshakeIdleTimeout time.Duration
	// MaxIdleTimeout is the maximum duration that may pass without any incoming network activity.
	// The actual value for the idle timeout is the minimum of this value and the peer's.
	// This value only applies after the handshake has completed.
	// If the timeout is exceeded, the connection is closed.
	// If this value is zero, the timeout is set to 30 seconds.
	MaxIdleTimeout time.Duration
	// RequireAddressValidation determines if a QUIC Retry packet is sent.
	// This allows the server to verify the client's address, at the cost of increasing the handshake latency by 1 RTT.
	// See https://datatracker.ietf.org/doc/html/rfc9000#section-8 for details.
	// If not set, every client is forced to prove its remote address.
	RequireAddressValidation func(net.Addr) bool
	// MaxRetryTokenAge is the maximum age of a Retry token.
	// If not set, it defaults to 5 seconds. Only valid for a server.
	MaxRetryTokenAge time.Duration
	// MaxTokenAge is the maximum age of the token presented during the handshake,
	// for tokens that were issued on a previous connection.
	// If not set, it defaults to 24 hours. Only valid for a server.
	MaxTokenAge time.Duration
	// The TokenStore stores tokens received from the server.
	// Tokens are used to skip address validation on future connection attempts.
	// The key used to store tokens is the ServerName from the tls.Config, if set
	// otherwise the token is associated with the server's IP address.
	TokenStore TokenStore
	// InitialStreamReceiveWindow is the initial size of the stream-level flow control window for receiving data.
	// If the application is consuming data quickly enough, the flow control auto-tuning algorithm
	// will increase the window up to MaxStreamReceiveWindow.
	// If this value is zero, it will default to 512 KB.
	InitialStreamReceiveWindow uint64
	// MaxStreamReceiveWindow is the maximum stream-level flow control window for receiving data.
	// If this value is zero, it will default to 6 MB.
	MaxStreamReceiveWindow uint64
	// InitialConnectionReceiveWindow is the initial size of the stream-level flow control window for receiving data.
	// If the application is consuming data quickly enough, the flow control auto-tuning algorithm
	// will increase the window up to MaxConnectionReceiveWindow.
	// If this value is zero, it will default to 512 KB.
	InitialConnectionReceiveWindow uint64
	// MaxConnectionReceiveWindow is the connection-level flow control window for receiving data.
	// If this value is zero, it will default to 15 MB.
	MaxConnectionReceiveWindow uint64
	// AllowConnectionWindowIncrease is called every time the connection flow controller attempts
	// to increase the connection flow control window.
	// If set, the caller can prevent an increase of the window. Typically, it would do so to
	// limit the memory usage.
	// To avoid deadlocks, it is not valid to call other functions on the connection or on streams
	// in this callback.
	AllowConnectionWindowIncrease func(conn Connection, delta uint64) bool
	// MaxIncomingStreams is the maximum number of concurrent bidirectional streams that a peer is allowed to open.
	// Values above 2^60 are invalid.
	// If not set, it will default to 100.
	// If set to a negative value, it doesn't allow any bidirectional streams.
	MaxIncomingStreams int64
	// MaxIncomingUniStreams is the maximum number of concurrent unidirectional streams that a peer is allowed to open.
	// Values above 2^60 are invalid.
	// If not set, it will default to 100.
	// If set to a negative value, it doesn't allow any unidirectional streams.
	MaxIncomingUniStreams int64
	// The StatelessResetKey is used to generate stateless reset tokens.
	// If no key is configured, sending of stateless resets is disabled.
	StatelessResetKey *StatelessResetKey
	// KeepAlivePeriod defines whether this peer will periodically send a packet to keep the connection alive.
	// If set to 0, then no keep alive is sent. Otherwise, the keep alive is sent on that period (or at most
	// every half of MaxIdleTimeout, whichever is smaller).
	KeepAlivePeriod time.Duration
	// DisablePathMTUDiscovery disables Path MTU Discovery (RFC 8899).
	// Packets will then be at most 1252 (IPv4) / 1232 (IPv6) bytes in size.
	// Note that if Path MTU discovery is causing issues on your system, please open a new issue
	DisablePathMTUDiscovery bool
	// DisableVersionNegotiationPackets disables the sending of Version Negotiation packets.
	// This can be useful if version information is exchanged out-of-band.
	// It has no effect for a client.
	DisableVersionNegotiationPackets bool
	// Allow0RTT allows the application to decide if a 0-RTT connection attempt should be accepted.
	// When set, 0-RTT is enabled. When not set, 0-RTT is disabled.
	// Only valid for the server.
	// Warning: This API should not be considered stable and might change soon.
	Allow0RTT func(net.Addr) bool
	// Enable QUIC datagram support (RFC 9221).
	EnableDatagrams bool
	Tracer          logging.Tracer
}

Config contains all configuration data needed for a QUIC server or client.

func (*Config) Clone 

func (c *Config) Clone() *Config

Clone clones a Config

type Connection 

type Connection interface {
	// AcceptStream returns the next stream opened by the peer, blocking until one is available.
	// If the connection was closed due to a timeout, the error satisfies
	// the net.Error interface, and Timeout() will be true.
	AcceptStream(context.Context) (Stream, error)
	// AcceptUniStream returns the next unidirectional stream opened by the peer, blocking until one is available.
	// If the connection was closed due to a timeout, the error satisfies
	// the net.Error interface, and Timeout() will be true.
	AcceptUniStream(context.Context) (ReceiveStream, error)
	// OpenStream opens a new bidirectional QUIC stream.
	// There is no signaling to the peer about new streams:
	// The peer can only accept the stream after data has been sent on the stream.
	// If the error is non-nil, it satisfies the net.Error interface.
	// When reaching the peer's stream limit, err.Temporary() will be true.
	// If the connection was closed due to a timeout, Timeout() will be true.
	OpenStream() (Stream, error)
	// OpenStreamSync opens a new bidirectional QUIC stream.
	// It blocks until a new stream can be opened.
	// If the error is non-nil, it satisfies the net.Error interface.
	// If the connection was closed due to a timeout, Timeout() will be true.
	OpenStreamSync(context.Context) (Stream, error)
	// OpenUniStream opens a new outgoing unidirectional QUIC stream.
	// If the error is non-nil, it satisfies the net.Error interface.
	// When reaching the peer's stream limit, Temporary() will be true.
	// If the connection was closed due to a timeout, Timeout() will be true.
	OpenUniStream() (SendStream, error)
	// OpenUniStreamSync opens a new outgoing unidirectional QUIC stream.
	// It blocks until a new stream can be opened.
	// If the error is non-nil, it satisfies the net.Error interface.
	// If the connection was closed due to a timeout, Timeout() will be true.
	OpenUniStreamSync(context.Context) (SendStream, error)
	// LocalAddr returns the local address.
	LocalAddr() net.Addr
	// RemoteAddr returns the address of the peer.
	RemoteAddr() net.Addr
	// CloseWithError closes the connection with an error.
	// The error string will be sent to the peer.
	CloseWithError(ApplicationErrorCode, string) error
	// Context returns a context that is cancelled when the connection is closed.
	Context() context.Context
	// ConnectionState returns basic details about the QUIC connection.
	// Warning: This API should not be considered stable and might change soon.
	ConnectionState() ConnectionState

	// SendMessage sends a message as a datagram, as specified in RFC 9221.
	SendMessage([]byte) error
	// ReceiveMessage gets a message received in a datagram, as specified in RFC 9221.
	ReceiveMessage() ([]byte, error)
}

A Connection is a QUIC connection between two peers. Calls to the connection (and to streams) can return the following types of errors: * ApplicationError: for errors triggered by the application running on top of QUIC * TransportError: for errors triggered by the QUIC transport (in many cases a misbehaving peer) * IdleTimeoutError: when the peer goes away unexpectedly (this is a net.Error timeout error) * HandshakeTimeoutError: when the cryptographic handshake takes too long (this is a net.Error timeout error) * StatelessResetError: when we receive a stateless reset (this is a net.Error temporary error) * VersionNegotiationError: returned by the client, when there's no version overlap between the peers

func Dial 

func Dial(
	pconn net.PacketConn,
	remoteAddr net.Addr,
	host string,
	tlsConf *tls.Config,
	config *Config,
) (Connection, error)

Dial establishes a new QUIC connection to a server using a net.PacketConn. If the PacketConn satisfies the OOBCapablePacketConn interface (as a net.UDPConn does), ECN and packet info support will be enabled. In this case, ReadMsgUDP and WriteMsgUDP will be used instead of ReadFrom and WriteTo to read/write packets. The same PacketConn can be used for multiple calls to Dial and Listen, QUIC connection IDs are used for demultiplexing the different connections. The host parameter is used for SNI. The tls.Config must define an application protocol (using NextProtos).

func DialAddr 

func DialAddr(
	addr string,
	tlsConf *tls.Config,
	config *Config,
) (Connection, error)

DialAddr establishes a new QUIC connection to a server. It uses a new UDP connection and closes this connection when the QUIC connection is closed. The hostname for SNI is taken from the given address.

func DialAddrContext 

func DialAddrContext(
	ctx context.Context,
	addr string,
	tlsConf *tls.Config,
	config *Config,
) (Connection, error)

DialAddrContext establishes a new QUIC connection to a server using the provided context. See DialAddr for details.

func DialContext 

func DialContext(
	ctx context.Context,
	pconn net.PacketConn,
	remoteAddr net.Addr,
	host string,
	tlsConf *tls.Config,
	config *Config,
) (Connection, error)

DialContext establishes a new QUIC connection to a server using a net.PacketConn using the provided context. See Dial for details.

type ConnectionID 

type ConnectionID = protocol.ConnectionID

A ConnectionID is a QUIC Connection ID, as defined in RFC 9000. It is not able to handle QUIC Connection IDs longer than 20 bytes, as they are allowed by RFC 8999.

func ConnectionIDFromBytes 

func ConnectionIDFromBytes(b []byte) ConnectionID

ConnectionIDFromBytes interprets b as a Connection ID. It panics if b is longer than 20 bytes.

type ConnectionIDGenerator 

type ConnectionIDGenerator interface {
	// GenerateConnectionID generates a new ConnectionID.
	// Generated ConnectionIDs should be unique and observers should not be able to correlate two ConnectionIDs.
	GenerateConnectionID() (ConnectionID, error)

	// ConnectionIDLen tells what is the length of the ConnectionIDs generated by the implementation of
	// this interface.
	// Effectively, this means that implementations of ConnectionIDGenerator must always return constant-size
	// connection IDs. Valid lengths are between 0 and 20 and calls to GenerateConnectionID.
	// 0-length ConnectionsIDs can be used when an endpoint (server or client) does not require multiplexing connections
	// in the presence of a connection migration environment.
	ConnectionIDLen() int
}

A ConnectionIDGenerator is an interface that allows clients to implement their own format for the Connection IDs that servers/clients use as SrcConnectionID in QUIC packets.

Connection IDs generated by an implementation should always produce IDs of constant size.

type ConnectionState 

type ConnectionState struct {
	TLS               handshake.ConnectionState
	SupportsDatagrams bool
	Version           VersionNumber
}

ConnectionState records basic details about a QUIC connection

type EarlyConnection 

type EarlyConnection interface {
	Connection

	// HandshakeComplete blocks until the handshake completes (or fails).
	// For the client, data sent before completion of the handshake is encrypted with 0-RTT keys.
	// For the serfer, data sent before completion of the handshake is encrypted with 1-RTT keys,
	// however the client's identity is only verified once the handshake completes.
	HandshakeComplete() <-chan struct{}

	NextConnection() Connection
}

An EarlyConnection is a connection that is handshaking. Data sent during the handshake is encrypted using the forward secure keys. When using client certificates, the client's identity is only verified after completion of the handshake.

func DialAddrEarly 

func DialAddrEarly(
	addr string,
	tlsConf *tls.Config,
	config *Config,
) (EarlyConnection, error)

DialAddrEarly establishes a new 0-RTT QUIC connection to a server. It uses a new UDP connection and closes this connection when the QUIC connection is closed. The hostname for SNI is taken from the given address.

func DialAddrEarlyContext 

func DialAddrEarlyContext(
	ctx context.Context,
	addr string,
	tlsConf *tls.Config,
	config *Config,
) (EarlyConnection, error)

DialAddrEarlyContext establishes a new 0-RTT QUIC connection to a server using provided context. See DialAddrEarly for details

func DialEarly 

func DialEarly(
	pconn net.PacketConn,
	remoteAddr net.Addr,
	host string,
	tlsConf *tls.Config,
	config *Config,
) (EarlyConnection, error)

DialEarly establishes a new 0-RTT QUIC connection to a server using a net.PacketConn. The same PacketConn can be used for multiple calls to Dial and Listen, QUIC connection IDs are used for demultiplexing the different connections. The host parameter is used for SNI. The tls.Config must define an application protocol (using NextProtos).

func DialEarlyContext 

func DialEarlyContext(
	ctx context.Context,
	pconn net.PacketConn,
	remoteAddr net.Addr,
	host string,
	tlsConf *tls.Config,
	config *Config,
) (EarlyConnection, error)

DialEarlyContext establishes a new 0-RTT QUIC connection to a server using a net.PacketConn using the provided context. See DialEarly for details.

type EarlyListener 

type EarlyListener interface {
	// Close the server. All active connections will be closed.
	Close() error
	// Addr returns the local network addr that the server is listening on.
	Addr() net.Addr
	// Accept returns new early connections. It should be called in a loop.
	Accept(context.Context) (EarlyConnection, error)
}

An EarlyListener listens for incoming QUIC connections, and returns them before the handshake completes.

func ListenAddrEarly 

func ListenAddrEarly(addr string, tlsConf *tls.Config, config *Config) (EarlyListener, error)

ListenAddrEarly works like ListenAddr, but it returns connections before the handshake completes.

func ListenEarly 

func ListenEarly(conn net.PacketConn, tlsConf *tls.Config, config *Config) (EarlyListener, error)

ListenEarly works like Listen, but it returns connections before the handshake completes.

type HandshakeTimeoutError 

type HandshakeTimeoutError = qerr.HandshakeTimeoutError

type IdleTimeoutError 

type IdleTimeoutError = qerr.IdleTimeoutError

type Listener 

type Listener interface {
	// Close the server. All active connections will be closed.
	Close() error
	// Addr returns the local network addr that the server is listening on.
	Addr() net.Addr
	// Accept returns new connections. It should be called in a loop.
	Accept(context.Context) (Connection, error)
}

A Listener for incoming QUIC connections

func Listen 

func Listen(conn net.PacketConn, tlsConf *tls.Config, config *Config) (Listener, error)

Listen listens for QUIC connections on a given net.PacketConn. If the PacketConn satisfies the OOBCapablePacketConn interface (as a net.UDPConn does), ECN and packet info support will be enabled. In this case, ReadMsgUDP and WriteMsgUDP will be used instead of ReadFrom and WriteTo to read/write packets. A single net.PacketConn only be used for a single call to Listen. The PacketConn can be used for simultaneous calls to Dial. QUIC connection IDs are used for demultiplexing the different connections. The tls.Config must not be nil and must contain a certificate configuration. Furthermore, it must define an application control (using NextProtos). The quic.Config may be nil, in that case the default values will be used.

func ListenAddr 

func ListenAddr(addr string, tlsConf *tls.Config, config *Config) (Listener, error)

ListenAddr creates a QUIC server listening on a given address. The tls.Config must not be nil and must contain a certificate configuration. The quic.Config may be nil, in that case the default values will be used.

type OOBCapablePacketConn 

type OOBCapablePacketConn interface {
	net.PacketConn
	SyscallConn() (syscall.RawConn, error)
	ReadMsgUDP(b, oob []byte) (n, oobn, flags int, addr *net.UDPAddr, err error)
	WriteMsgUDP(b, oob []byte, addr *net.UDPAddr) (n, oobn int, err error)
}

OOBCapablePacketConn is a connection that allows the reading of ECN bits from the IP header. If the PacketConn passed to Dial or Listen satisfies this interface, quic-go will use it. In this case, ReadMsgUDP() will be used instead of ReadFrom() to read packets.

type ReceiveStream 

type ReceiveStream interface {
	// StreamID returns the stream ID.
	StreamID() StreamID
	// Read reads data from the stream.
	// Read can be made to time out and return a net.Error with Timeout() == true
	// after a fixed time limit; see SetDeadline and SetReadDeadline.
	// If the stream was canceled by the peer, the error implements the StreamError
	// interface, and Canceled() == true.
	// If the connection was closed due to a timeout, the error satisfies
	// the net.Error interface, and Timeout() will be true.
	io.Reader
	// CancelRead aborts receiving on this stream.
	// It will ask the peer to stop transmitting stream data.
	// Read will unblock immediately, and future Read calls will fail.
	// When called multiple times or after reading the io.EOF it is a no-op.
	CancelRead(StreamErrorCode)

	SetReadDeadline(t time.Time) error
}

A ReceiveStream is a unidirectional Receive Stream.

type SendStream 

type SendStream interface {
	// StreamID returns the stream ID.
	StreamID() StreamID
	// Write writes data to the stream.
	// Write can be made to time out and return a net.Error with Timeout() == true
	// after a fixed time limit; see SetDeadline and SetWriteDeadline.
	// If the stream was canceled by the peer, the error implements the StreamError
	// interface, and Canceled() == true.
	// If the connection was closed due to a timeout, the error satisfies
	// the net.Error interface, and Timeout() will be true.
	io.Writer
	// Close closes the write-direction of the stream.
	// Future calls to Write are not permitted after calling Close.
	// It must not be called concurrently with Write.
	// It must not be called after calling CancelWrite.
	io.Closer
	// CancelWrite aborts sending on this stream.
	// Data already written, but not yet delivered to the peer is not guaranteed to be delivered reliably.
	// Write will unblock immediately, and future calls to Write will fail.
	// When called multiple times or after closing the stream it is a no-op.
	CancelWrite(StreamErrorCode)
	// The Context is canceled as soon as the write-side of the stream is closed.
	// This happens when Close() or CancelWrite() is called, or when the peer
	// cancels the read-side of their stream.
	Context() context.Context
	// SetWriteDeadline sets the deadline for future Write calls
	// and any currently-blocked Write call.
	// Even if write times out, it may return n > 0, indicating that
	// some data was successfully written.
	// A zero value for t means Write will not time out.
	SetWriteDeadline(t time.Time) error
}

A SendStream is a unidirectional Send Stream.

type StatelessResetError 

type StatelessResetError = qerr.StatelessResetError

type StatelessResetKey 

type StatelessResetKey [32]byte

StatelessResetKey is a key used to derive stateless reset tokens.

type Stream 

type Stream interface {
	ReceiveStream
	SendStream
	// SetDeadline sets the read and write deadlines associated
	// with the connection. It is equivalent to calling both
	// SetReadDeadline and SetWriteDeadline.
	SetDeadline(t time.Time) error
}

Stream is the interface implemented by QUIC streams In addition to the errors listed on the Connection, calls to stream functions can return a StreamError if the stream is canceled.

type StreamError 

type StreamError struct {
	StreamID  StreamID
	ErrorCode StreamErrorCode
	Remote    bool
}

A StreamError is used for Stream.CancelRead and Stream.CancelWrite. It is also returned from Stream.Read and Stream.Write if the peer canceled reading or writing.

func (*StreamError) Error 

func (e *StreamError) Error() string

func (*StreamError) Is 

func (e *StreamError) Is(target error) bool

type StreamErrorCode 

type StreamErrorCode = qerr.StreamErrorCode

type StreamID 

type StreamID = protocol.StreamID

The StreamID is the ID of a QUIC stream.

type TokenStore 

type TokenStore interface {
	// Pop searches for a ClientToken associated with the given key.
	// Since tokens are not supposed to be reused, it must remove the token from the cache.
	// It returns nil when no token is found.
	Pop(key string) (token *ClientToken)

	// Put adds a token to the cache with the given key. It might get called
	// multiple times in a connection.
	Put(key string, token *ClientToken)
}

func NewLRUTokenStore 

func NewLRUTokenStore(maxOrigins, tokensPerOrigin int) TokenStore

NewLRUTokenStore creates a new LRU cache for tokens received by the client. maxOrigins specifies how many origins this cache is saving tokens for. tokensPerOrigin specifies the maximum number of tokens per origin.

type TransportError 

type TransportError = qerr.TransportError

type TransportErrorCode 

type TransportErrorCode = qerr.TransportErrorCode

type VersionNegotiationError 

type VersionNegotiationError = qerr.VersionNegotiationError

type VersionNumber 

type VersionNumber = protocol.VersionNumber

A VersionNumber is a QUIC version number.

Source Files

View all Source files

Directories

Path Synopsis
client
echo
fuzzing
frames
frames/cmd
handshake
handshake/cmd
header
header/cmd
internal/helper
tokens
transportparameters
transportparameters/cmd
integrationtests
tools/israce
tools/proxy
internal
ackhandler
congestion
flowcontrol
handshake
logutils
mocks
Package mocks is a generated GoMock package.
 Package mocks is a generated GoMock package.
mocks/ackhandler
Package mockackhandler is a generated GoMock package.
 Package mockackhandler is a generated GoMock package.
mocks/logging
Package mocklogging is a generated GoMock package.
 Package mocklogging is a generated GoMock package.
mocks/quic
Package mockquic is a generated GoMock package.
 Package mockquic is a generated GoMock package.
mocks/tls
Package mocktls is a generated GoMock package.
 Package mocktls is a generated GoMock package.
protocol
qerr
qtls
testutils
utils
utils/linkedlist
Package list implements a doubly linked list.
 Package list implements a doubly linked list.
wire
interop
client
http09
server
utils
Package logging defines a logging interface for quic-go.
 Package logging defines a logging interface for quic-go.

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