clienthellod

type CRYPTO struct {
	Offset uint64 `json:"offset,omitempty"` // offset of crypto data, from VLI
	Length uint64 `json:"length,omitempty"` // length of crypto data, from VLI
	Data   []byte `json:"data,omitempty"`   // crypto data
}

type ClientHello struct {
	TLSRecordVersion    uint16 `json:"tls_record_version"`    // TLS record version (major, minor)
	TLSHandshakeVersion uint16 `json:"tls_handshake_version"` // TLS handshake version (major, minor)

	CipherSuites         []uint16       `json:"cipher_suites"`
	CompressionMethods   utils.Uint8Arr `json:"compression_methods"`
	Extensions           []uint16       `json:"extensions"`            // extension IDs in original order
	ExtensionsNormalized []uint16       `json:"extensions_normalized"` // sorted extension IDs

	ServerName          string         `json:"server_name"`            // server_name(0)
	NamedGroupList      []uint16       `json:"supported_groups"`       // supported_groups(10) a.k.a elliptic_curves
	ECPointFormatList   utils.Uint8Arr `json:"ec_point_formats"`       // ec_point_formats(11)
	SignatureSchemeList []uint16       `json:"signature_algorithms"`   // signature_algorithms(13)
	ALPN                []string       `json:"alpn"`                   // alpn(16)
	CertCompressAlgo    []uint16       `json:"compress_certificate"`   // compress_certificate(27)
	RecordSizeLimit     utils.Uint8Arr `json:"record_size_limit"`      // record_size_limit(28)
	SupportedVersions   []uint16       `json:"supported_versions"`     // supported_versions(43)
	PSKKeyExchangeModes utils.Uint8Arr `json:"psk_key_exchange_modes"` // psk_key_exchange_modes(45)
	KeyShare            []uint16       `json:"key_share"`              // key_share(51)
	ApplicationSettings []string       `json:"application_settings"`   // application_settings(17513) a.k.a ALPS

	UserAgent string `json:"user_agent,omitempty"` // User-Agent header, set by the caller

	NID     int64  `json:"nid,omitempty"`      // NID of the fingerprint
	NormNID int64  `json:"norm_nid,omitempty"` // Normalized NID of the fingerprint
	ID      string `json:"id,omitempty"`       // ID of the fingerprint (hex string)
	NormID  string `json:"norm_id,omitempty"`  // Normalized ID of the fingerprint (hex string)
	// contains filtered or unexported fields
}

type ClientInitialPacket struct {
	QHdr *QUICHeader              `json:"quic_header,omitempty"`               // QUIC header, set by the caller
	QCH  *QUICClientHello         `json:"quic_client_hello,omitempty"`         // TLS ClientHello, set by the caller
	QTP  *QUICTransportParameters `json:"quic_transport_parameters,omitempty"` // QUIC Transport Parameters, set by the caller

	HexID     string `json:"cip_fp_id,omitempty"`  // normalized
	NumericID uint64 `json:"cip_fp_nid,omitempty"` // original

	UserAgent string `json:"user_agent,omitempty"` // User-Agent header, set by the caller
	// contains filtered or unexported fields
}

type Frame interface {
	// FrameType returns the type of the frame.
	FrameType() uint64

	// ReadReader takes a Reader and reads the rest of the frame from it,
	// starting from the first byte after the frame type.
	//
	// The returned io.Reader contains the rest of the frame, it could be
	// the input Reader itself (if no extra bytes are read) or a rewinded
	// Reader (if extra bytes are read and rewinding is needed).
	ReadReader(io.Reader) (io.Reader, error)
}

type PADDING struct {
	Length uint64 `json:"length,omitempty"` // count 0x00 bytes until not 0x00
}

type PING struct{}

type QUICClientHello struct {
	ClientHello
}

type QUICHeader struct {
	Version      utils.Uint8Arr `json:"version,omitempty"` // 4-byte version
	DCIDLength   uint32         `json:"dcid_len,omitempty"`
	SCIDLength   uint32         `json:"scid_len,omitempty"`
	PacketNumber utils.Uint8Arr `json:"pn,omitempty"` // VLI

	// These two fields are not strictly part of QUIC header, but we need them before parsing QUIC ClientHello
	FrameIDs utils.Uint8Arr `json:"frame_id,omitempty"` // sorted

	TokenLength uint32 `json:"token_len,omitempty"`

	HexID     string `json:"hdrid,omitempty"`
	NumericID uint64 `json:"hdrnid,omitempty"`
	// contains filtered or unexported fields
}

type QUICTransportParameters struct {
	MaxIdleTimeout                 utils.Uint8Arr `json:"max_idle_timeout,omitempty"`
	MaxUDPPayloadSize              utils.Uint8Arr `json:"max_udp_payload_size,omitempty"`
	InitialMaxData                 utils.Uint8Arr `json:"initial_max_data,omitempty"`
	InitialMaxStreamDataBidiLocal  utils.Uint8Arr `json:"initial_max_stream_data_bidi_local,omitempty"`
	InitialMaxStreamDataBidiRemote utils.Uint8Arr `json:"initial_max_stream_data_bidi_remote,omitempty"`
	InitialMaxStreamDataUni        utils.Uint8Arr `json:"initial_max_stream_data_uni,omitempty"`
	InitialMaxStreamsBidi          utils.Uint8Arr `json:"initial_max_streams_bidi,omitempty"`
	InitialMaxStreamsUni           utils.Uint8Arr `json:"initial_max_streams_uni,omitempty"`
	AckDelayExponent               utils.Uint8Arr `json:"ack_delay_exponent,omitempty"`
	MaxAckDelay                    utils.Uint8Arr `json:"max_ack_delay,omitempty"`

	ActiveConnectionIDLimit utils.Uint8Arr `json:"active_connection_id_limit,omitempty"`
	QTPIDs                  []uint64       `json:"qtpid,omitempty"` // sorted

	HexID     string `json:"tpfpid,omitempty"`
	NumericID uint64 `json:"tpfnid,omitempty"`
	// contains filtered or unexported fields
}