quicutils

package

v0.1.34 Latest Latest Go to latest Published: Oct 10, 2023 License: MIT Imports: 10 Imported by: 0

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Repository

github.com/wwqgtxx/wstunnel

Documentation ¶

Index ¶

Constants
Variables
func BigEndianUvarint(buf []byte) (uint64, int, error)
func DecryptQuic(header []byte, blockEnd int, destConnId []byte) (plaintext []byte, err error)
func HkdfExpandLabel(h func() hash.Hash, secret, label []byte, context []byte, length int) ([]byte, error)
func ReassembleCryptoToBytes(plaintextPayload []byte, reassembledBytes []byte) (b []byte, err error)
type CryptoFrameOffset
- func ExtractCryptoFrameOffset(remainder []byte, transportOffset int) (offset *CryptoFrameOffset, frameSize int, err error)
type CryptoFrameRelocation
type Keys
- func NewKeys(clientDstConnectionId []byte, version Version, ...) (keys *Keys, err error)
type Version
- func ParseVersion(version uint32) (Version, error)

Constants ¶

View Source

const (
	MaxVarintLen64 = 8

	MaxPacketNumberLength = 4
	SampleSize            = 16
)

View Source

const (
	Quic_FrameType_Padding          = 0
	Quic_FrameType_Ping             = 1
	Quic_FrameType_Crypto           = 6
	Quic_FrameType_ConnectionClose  = 0x1c
	Quic_FrameType_ConnectionClose2 = 0x1d
)

View Source

const (
	Version_Draft = iota
	Version_V1
	Version_V2
)

Variables ¶

View Source

var (
	UnknownFrameTypeError = fmt.Errorf("unknown frame type")
	OutOfRangeError       = fmt.Errorf("index out of range")
)

View Source

var (
	InitialClientLabel = []byte("client in")
)

Functions ¶

func BigEndianUvarint ¶

func BigEndianUvarint(buf []byte) (uint64, int, error)

BigEndianUvarint decodes a uint64 from buf and returns that value and the number of bytes read (> 0).

func DecryptQuic ¶

func DecryptQuic(header []byte, blockEnd int, destConnId []byte) (plaintext []byte, err error)

func HkdfExpandLabel ¶

func HkdfExpandLabel(h func() hash.Hash, secret, label []byte, context []byte, length int) ([]byte, error)

HkdfExpandLabel HKDF expands a label. Since this implementation avoids using a cryptobyte.Builder, it is about 15% faster than the hkdfExpandLabel in the standard library.

func ReassembleCryptoToBytes ¶

func ReassembleCryptoToBytes(plaintextPayload []byte, reassembledBytes []byte) (b []byte, err error)

Types ¶

type CryptoFrameOffset ¶

type CryptoFrameOffset struct {
	UpperAppOffset int
	// Offset of data in quic payload.
	Data []byte
}

func ExtractCryptoFrameOffset ¶

func ExtractCryptoFrameOffset(remainder []byte, transportOffset int) (offset *CryptoFrameOffset, frameSize int, err error)

type CryptoFrameRelocation ¶

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

func (*CryptoFrameRelocation) At ¶

func (r *CryptoFrameRelocation) At(i int) byte

func (*CryptoFrameRelocation) BinarySearch ¶

func (r *CryptoFrameRelocation) BinarySearch(iUpper int, leftOuter, rightOuter int) (iOuter int, iInner int, err error)

func (*CryptoFrameRelocation) Bytes ¶

func (r *CryptoFrameRelocation) Bytes() []byte

func (*CryptoFrameRelocation) Len ¶

func (r *CryptoFrameRelocation) Len() int

func (*CryptoFrameRelocation) Range ¶

func (r *CryptoFrameRelocation) Range(i, j int) []byte

Range copy bytes from iUpperAppOffset to jUpperAppOffset. It is not suggested to use it for large range and frequent copy.

type Keys ¶

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

func NewKeys ¶

func NewKeys(clientDstConnectionId []byte, version Version, newAead func(key []byte) (cipher.AEAD, error)) (keys *Keys, err error)

func (*Keys) Close ¶

func (k *Keys) Close() error

func (*Keys) HeaderProtection ¶

func (k *Keys) HeaderProtection(sample []byte, longHeader bool, firstByte *byte, potentialPacketNumber []byte) (packetNumber []byte, err error)

HeaderProtection encrypt/decrypt firstByte and packetNumber in place.

func (*Keys) PayloadDecrypt ¶

func (k *Keys) PayloadDecrypt(ciphertext []byte, packetNumber []byte, header []byte) (plaintext []byte, err error)

type Version ¶

type Version int

func ParseVersion ¶

func ParseVersion(version uint32) (Version, error)

func (Version) HpLabel ¶

func (v Version) HpLabel() []byte

func (Version) InitialSalt ¶

func (v Version) InitialSalt() []byte

func (Version) IvLabel ¶

func (v Version) IvLabel() []byte

func (Version) KeyLabel ¶

func (v Version) KeyLabel() []byte

Source Files ¶

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