cloudflared-mirror/vendor/github.com/lucas-clemente/quic-go/qlog/packet_header.go

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package qlog
import (
"fmt"
"github.com/lucas-clemente/quic-go/internal/protocol"
"github.com/lucas-clemente/quic-go/internal/wire"
"github.com/lucas-clemente/quic-go/logging"
"github.com/francoispqt/gojay"
)
func getPacketTypeFromEncryptionLevel(encLevel protocol.EncryptionLevel) logging.PacketType {
switch encLevel {
case protocol.EncryptionInitial:
return logging.PacketTypeInitial
case protocol.EncryptionHandshake:
return logging.PacketTypeHandshake
case protocol.Encryption0RTT:
return logging.PacketType0RTT
case protocol.Encryption1RTT:
return logging.PacketType1RTT
default:
panic("unknown encryption level")
}
}
type token struct {
Raw []byte
}
var _ gojay.MarshalerJSONObject = &token{}
func (t token) IsNil() bool { return false }
func (t token) MarshalJSONObject(enc *gojay.Encoder) {
enc.StringKey("data", fmt.Sprintf("%x", t.Raw))
}
// PacketHeader is a QUIC packet header.
type packetHeader struct {
PacketType logging.PacketType
KeyPhaseBit logging.KeyPhaseBit
PacketNumber logging.PacketNumber
Version logging.VersionNumber
SrcConnectionID logging.ConnectionID
DestConnectionID logging.ConnectionID
Token *token
}
func transformHeader(hdr *wire.Header) *packetHeader {
h := &packetHeader{
PacketType: logging.PacketTypeFromHeader(hdr),
SrcConnectionID: hdr.SrcConnectionID,
DestConnectionID: hdr.DestConnectionID,
Version: hdr.Version,
}
if len(hdr.Token) > 0 {
h.Token = &token{Raw: hdr.Token}
}
return h
}
func transformExtendedHeader(hdr *wire.ExtendedHeader) *packetHeader {
h := transformHeader(&hdr.Header)
h.PacketNumber = hdr.PacketNumber
h.KeyPhaseBit = hdr.KeyPhase
return h
}
func (h packetHeader) MarshalJSONObject(enc *gojay.Encoder) {
enc.StringKey("packet_type", packetType(h.PacketType).String())
if h.PacketType != logging.PacketTypeRetry && h.PacketType != logging.PacketTypeVersionNegotiation {
enc.Int64Key("packet_number", int64(h.PacketNumber))
}
if h.Version != 0 {
enc.StringKey("version", versionNumber(h.Version).String())
}
if h.PacketType != logging.PacketType1RTT {
enc.IntKey("scil", h.SrcConnectionID.Len())
if h.SrcConnectionID.Len() > 0 {
enc.StringKey("scid", connectionID(h.SrcConnectionID).String())
}
}
enc.IntKey("dcil", h.DestConnectionID.Len())
if h.DestConnectionID.Len() > 0 {
enc.StringKey("dcid", connectionID(h.DestConnectionID).String())
}
if h.KeyPhaseBit == logging.KeyPhaseZero || h.KeyPhaseBit == logging.KeyPhaseOne {
enc.StringKey("key_phase_bit", h.KeyPhaseBit.String())
}
if h.Token != nil {
enc.ObjectKey("token", h.Token)
}
}
// a minimal header that only outputs the packet type
type packetHeaderWithType struct {
PacketType logging.PacketType
}
func (h packetHeaderWithType) IsNil() bool { return false }
func (h packetHeaderWithType) MarshalJSONObject(enc *gojay.Encoder) {
enc.StringKey("packet_type", packetType(h.PacketType).String())
}
// a minimal header that only outputs the packet type
type packetHeaderWithTypeAndPacketNumber struct {
PacketType logging.PacketType
PacketNumber logging.PacketNumber
}
func (h packetHeaderWithTypeAndPacketNumber) IsNil() bool { return false }
func (h packetHeaderWithTypeAndPacketNumber) MarshalJSONObject(enc *gojay.Encoder) {
enc.StringKey("packet_type", packetType(h.PacketType).String())
enc.Int64Key("packet_number", int64(h.PacketNumber))
}