make the protocol package internal

ackhandler/interfaces.go

@@ -3,8 +3,8 @@ package ackhandler
 import (
 	"time"
 
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/wire"
-	"github.com/lucas-clemente/quic-go/protocol"
 )
 
 // SentPacketHandler handles ACKs received for outgoing packets

ackhandler/packet.go

@@ -3,8 +3,8 @@ package ackhandler
 import (
 	"time"
 
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/wire"
-	"github.com/lucas-clemente/quic-go/protocol"
 )
 
 // A Packet is a packet

ackhandler/received_packet_handler.go

@@ -4,8 +4,8 @@ import (
 	"errors"
 	"time"
 
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/wire"
-	"github.com/lucas-clemente/quic-go/protocol"
 )
 
 var errInvalidPacketNumber = errors.New("ReceivedPacketHandler: Invalid packet number")

ackhandler/received_packet_handler_test.go

@@ -3,8 +3,8 @@ package ackhandler
 import (
 	"time"
 
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/wire"
-	"github.com/lucas-clemente/quic-go/protocol"
 
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"

ackhandler/received_packet_history.go

@@ -1,9 +1,9 @@
 package ackhandler
 
 import (
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
 	"github.com/lucas-clemente/quic-go/internal/wire"
-	"github.com/lucas-clemente/quic-go/protocol"
 	"github.com/lucas-clemente/quic-go/qerr"
 )
 

ackhandler/received_packet_history_test.go

@@ -1,9 +1,9 @@
 package ackhandler
 
 import (
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
 	"github.com/lucas-clemente/quic-go/internal/wire"
-	"github.com/lucas-clemente/quic-go/protocol"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 )

ackhandler/sent_packet_handler.go

@@ -6,9 +6,9 @@ import (
 	"time"
 
 	"github.com/lucas-clemente/quic-go/congestion"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
 	"github.com/lucas-clemente/quic-go/internal/wire"
-	"github.com/lucas-clemente/quic-go/protocol"
 	"github.com/lucas-clemente/quic-go/qerr"
 )
 

ackhandler/sent_packet_handler_test.go

@@ -4,8 +4,8 @@ import (
 	"time"
 
 	"github.com/lucas-clemente/quic-go/congestion"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/wire"
-	"github.com/lucas-clemente/quic-go/protocol"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 )

ackhandler/stop_waiting_manager.go

@@ -1,8 +1,8 @@
 package ackhandler
 
 import (
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/wire"
-	"github.com/lucas-clemente/quic-go/protocol"
 )
 
 // This stopWaitingManager is not supposed to satisfy the StopWaitingManager interface, which is a remnant of the legacy AckHandler, and should be remove once we drop support for QUIC 33

benchmark/benchmark_test.go

@@ -9,8 +9,8 @@ import (
 	"net"
 
 	quic "github.com/lucas-clemente/quic-go"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/testdata"
-	"github.com/lucas-clemente/quic-go/protocol"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 )

buffer_pool.go

@@ -3,7 +3,7 @@ package quic
 import (
 	"sync"
 
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 )
 
 var bufferPool sync.Pool

buffer_pool_test.go

@@ -1,7 +1,7 @@
 package quic
 
 import (
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"

client.go

@@ -10,9 +10,9 @@ import (
 	"sync"
 	"time"
 
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
 	"github.com/lucas-clemente/quic-go/internal/wire"
-	"github.com/lucas-clemente/quic-go/protocol"
 	"github.com/lucas-clemente/quic-go/qerr"
 )
 

client_test.go

@@ -7,8 +7,8 @@ import (
 	"net"
 	"time"
 
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/wire"
-	"github.com/lucas-clemente/quic-go/protocol"
 	"github.com/lucas-clemente/quic-go/qerr"
 
 	. "github.com/onsi/ginkgo"

congestion/bandwidth.go

@@ -3,7 +3,7 @@ package congestion
 import (
 	"time"
 
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 )
 
 // Bandwidth of a connection

congestion/cubic.go

@@ -4,8 +4,8 @@ import (
 	"math"
 	"time"
 
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 )
 
 // This cubic implementation is based on the one found in Chromiums's QUIC

congestion/cubic_sender.go

@@ -3,8 +3,8 @@ package congestion
 import (
 	"time"
 
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 )
 
 const (

congestion/cubic_sender_test.go

@@ -3,7 +3,7 @@ package congestion
 import (
 	"time"
 
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 )

congestion/cubic_test.go

@@ -4,7 +4,7 @@ import (
 	"math"
 	"time"
 
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 )

congestion/hybrid_slow_start.go

@@ -3,8 +3,8 @@ package congestion
 import (
 	"time"
 
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 )
 
 // Note(pwestin): the magic clamping numbers come from the original code in

congestion/hybrid_slow_start_test.go

@@ -3,7 +3,7 @@ package congestion
 import (
 	"time"
 
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 )

congestion/interface.go

@@ -3,7 +3,7 @@ package congestion
 import (
 	"time"
 
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 )
 
 // A SendAlgorithm performs congestion control and calculates the congestion window

congestion/prr_sender.go

@@ -3,8 +3,8 @@ package congestion
 import (
 	"time"
 
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 )
 
 // PrrSender implements the Proportional Rate Reduction (PRR) per RFC 6937

congestion/prr_sender_test.go

@@ -4,8 +4,8 @@ import (
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 )
 
 var _ = Describe("PRR sender", func() {

congestion/stats.go

@@ -1,6 +1,6 @@
 package congestion
 
-import "github.com/lucas-clemente/quic-go/protocol"
+import "github.com/lucas-clemente/quic-go/internal/protocol"
 
 type connectionStats struct {
 	slowstartPacketsLost protocol.PacketNumber

crypto/AEAD.go

@@ -1,6 +1,6 @@
 package crypto
 
-import "github.com/lucas-clemente/quic-go/protocol"
+import "github.com/lucas-clemente/quic-go/internal/protocol"
 
 // An AEAD implements QUIC's authenticated encryption and associated data
 type AEAD interface {

crypto/aesgcm_aead.go

@@ -6,7 +6,7 @@ import (
 
 	"github.com/lucas-clemente/aes12"
 
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 )
 
 type aeadAESGCM struct {

crypto/cert_cache.go

@@ -5,7 +5,7 @@ import (
 	"hash/fnv"
 
 	"github.com/hashicorp/golang-lru"
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 )
 
 var (

crypto/chacha20poly1305_aead.go

@@ -8,7 +8,7 @@ import (
 
 	"github.com/aead/chacha20"
 
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 )
 
 type aeadChacha20Poly1305 struct {

crypto/key_derivation.go

@@ -5,8 +5,8 @@ import (
 	"crypto/sha256"
 	"io"
 
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 
 	"golang.org/x/crypto/hkdf"
 )

crypto/key_derivation_test.go

@@ -1,7 +1,7 @@
 package crypto
 
 import (
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"

crypto/nonce.go

@@ -3,7 +3,7 @@ package crypto
 import (
 	"encoding/binary"
 
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 )
 
 func makeNonce(iv []byte, packetNumber protocol.PacketNumber) []byte {

crypto/null_aead.go

@@ -5,7 +5,7 @@ import (
 	"errors"
 
 	"github.com/lucas-clemente/fnv128a"
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 )
 
 // nullAEAD handles not-yet encrypted packets

crypto/null_aead_test.go

@@ -1,7 +1,7 @@
 package crypto
 
 import (
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 )

flowcontrol/flow_control_manager.go

@@ -7,8 +7,8 @@ import (
 
 	"github.com/lucas-clemente/quic-go/congestion"
 	"github.com/lucas-clemente/quic-go/handshake"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 	"github.com/lucas-clemente/quic-go/qerr"
 )
 

flowcontrol/flow_control_manager_test.go

@@ -5,7 +5,7 @@ import (
 
 	"github.com/lucas-clemente/quic-go/congestion"
 	"github.com/lucas-clemente/quic-go/internal/mocks"
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/qerr"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"

flowcontrol/flow_controller.go

@@ -6,8 +6,8 @@ import (
 
 	"github.com/lucas-clemente/quic-go/congestion"
 	"github.com/lucas-clemente/quic-go/handshake"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 )
 
 type flowController struct {

flowcontrol/flow_controller_test.go

@@ -5,7 +5,7 @@ import (
 
 	"github.com/lucas-clemente/quic-go/congestion"
 	"github.com/lucas-clemente/quic-go/internal/mocks"
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 )

flowcontrol/interface.go

@@ -1,6 +1,6 @@
 package flowcontrol
 
-import "github.com/lucas-clemente/quic-go/protocol"
+import "github.com/lucas-clemente/quic-go/internal/protocol"
 
 // WindowUpdate provides the data for WindowUpdateFrames.
 type WindowUpdate struct {

h2quic/client.go

@@ -15,8 +15,8 @@ import (
 	"golang.org/x/net/idna"
 
 	quic "github.com/lucas-clemente/quic-go"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 	"github.com/lucas-clemente/quic-go/qerr"
 )
 

h2quic/client_test.go

@@ -12,7 +12,7 @@ import (
 	"golang.org/x/net/http2/hpack"
 
 	quic "github.com/lucas-clemente/quic-go"
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/qerr"
 
 	"time"

h2quic/request_writer.go

@@ -13,8 +13,8 @@ import (
 	"golang.org/x/net/lex/httplex"
 
 	quic "github.com/lucas-clemente/quic-go"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 )
 
 type requestWriter struct {

h2quic/response_writer.go

@@ -8,8 +8,8 @@ import (
 	"sync"
 
 	quic "github.com/lucas-clemente/quic-go"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 	"golang.org/x/net/http2"
 	"golang.org/x/net/http2/hpack"
 )

h2quic/response_writer_test.go

@@ -11,7 +11,7 @@ import (
 	"golang.org/x/net/http2"
 	"golang.org/x/net/http2/hpack"
 
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 )

h2quic/server.go

@@ -13,8 +13,8 @@ import (
 	"time"
 
 	quic "github.com/lucas-clemente/quic-go"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 	"github.com/lucas-clemente/quic-go/qerr"
 	"golang.org/x/net/http2"
 	"golang.org/x/net/http2/hpack"

h2quic/server_test.go

@@ -18,8 +18,8 @@ import (
 	"golang.org/x/net/http2/hpack"
 
 	quic "github.com/lucas-clemente/quic-go"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/testdata"
-	"github.com/lucas-clemente/quic-go/protocol"
 	"github.com/lucas-clemente/quic-go/qerr"
 
 	. "github.com/onsi/ginkgo"

handshake/connection_parameters_manager.go

@@ -5,8 +5,8 @@ import (
 	"sync"
 	"time"
 
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 	"github.com/lucas-clemente/quic-go/qerr"
 )
 

handshake/connection_parameters_manager_test.go

@@ -5,7 +5,7 @@ import (
 	"math"
 	"time"
 
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 )

handshake/crypto_setup_client.go

@@ -12,8 +12,8 @@ import (
 	"time"
 
 	"github.com/lucas-clemente/quic-go/crypto"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 	"github.com/lucas-clemente/quic-go/qerr"
 )
 

handshake/crypto_setup_client_test.go

@@ -8,8 +8,8 @@ import (
 	"time"
 
 	"github.com/lucas-clemente/quic-go/crypto"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 	"github.com/lucas-clemente/quic-go/qerr"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"

handshake/crypto_setup_server.go

@@ -10,8 +10,8 @@ import (
 	"sync"
 
 	"github.com/lucas-clemente/quic-go/crypto"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 	"github.com/lucas-clemente/quic-go/qerr"
 )
 

handshake/crypto_setup_server_test.go

@@ -7,8 +7,8 @@ import (
 	"net"
 
 	"github.com/lucas-clemente/quic-go/crypto"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 	"github.com/lucas-clemente/quic-go/qerr"
 
 	. "github.com/onsi/ginkgo"

handshake/ephermal_cache.go

@@ -5,8 +5,8 @@ import (
 	"time"
 
 	"github.com/lucas-clemente/quic-go/crypto"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 )
 
 var (

handshake/ephermal_cache_test.go

@@ -4,7 +4,7 @@ import (
 	"time"
 
 	"github.com/lucas-clemente/quic-go/crypto"
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 )

handshake/handshake_message.go

@@ -7,8 +7,8 @@ import (
 	"io"
 	"sort"
 
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 	"github.com/lucas-clemente/quic-go/qerr"
 )
 

handshake/interface.go

@@ -1,6 +1,6 @@
 package handshake
 
-import "github.com/lucas-clemente/quic-go/protocol"
+import "github.com/lucas-clemente/quic-go/internal/protocol"
 
 // Sealer seals a packet
 type Sealer func(dst, src []byte, packetNumber protocol.PacketNumber, associatedData []byte) []byte

integrationtests/chrome/chrome_suite_test.go

@@ -15,8 +15,8 @@ import (
 	"time"
 
 	"github.com/lucas-clemente/quic-go/integrationtests/tools/testserver"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 
 	_ "github.com/lucas-clemente/quic-go/integrationtests/tools/testlog"
 

integrationtests/chrome/chrome_test.go

@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"os"
 
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 
 	. "github.com/onsi/ginkgo"
 )

integrationtests/gquic/drop_test.go

@@ -9,7 +9,7 @@ import (
 	_ "github.com/lucas-clemente/quic-clients" // download clients
 	"github.com/lucas-clemente/quic-go/integrationtests/tools/proxy"
 	"github.com/lucas-clemente/quic-go/integrationtests/tools/testserver"
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"

integrationtests/gquic/integration_test.go

@@ -8,7 +8,7 @@ import (
 	"sync"
 
 	"github.com/lucas-clemente/quic-go/integrationtests/tools/testserver"
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 
 	_ "github.com/lucas-clemente/quic-clients" // download clients
 

integrationtests/gquic/random_rtt_test.go

@@ -11,7 +11,7 @@ import (
 	_ "github.com/lucas-clemente/quic-clients" // download clients
 	"github.com/lucas-clemente/quic-go/integrationtests/tools/proxy"
 	"github.com/lucas-clemente/quic-go/integrationtests/tools/testserver"
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"

integrationtests/gquic/rtt_test.go

@@ -10,7 +10,7 @@ import (
 	_ "github.com/lucas-clemente/quic-clients" // download clients
 	"github.com/lucas-clemente/quic-go/integrationtests/tools/proxy"
 	"github.com/lucas-clemente/quic-go/integrationtests/tools/testserver"
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"

integrationtests/self/client_test.go

@@ -11,7 +11,7 @@ import (
 
 	"github.com/lucas-clemente/quic-go/h2quic"
 	"github.com/lucas-clemente/quic-go/integrationtests/tools/testserver"
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 	"github.com/onsi/gomega/gbytes"

integrationtests/self/handshake_rtt_test.go

@@ -8,8 +8,8 @@ import (
 
 	quic "github.com/lucas-clemente/quic-go"
 	"github.com/lucas-clemente/quic-go/integrationtests/tools/proxy"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 	"github.com/lucas-clemente/quic-go/qerr"
 
 	"github.com/lucas-clemente/quic-go/internal/testdata"

integrationtests/tools/proxy/proxy.go

@@ -7,8 +7,8 @@ import (
 	"sync/atomic"
 	"time"
 
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/wire"
-	"github.com/lucas-clemente/quic-go/protocol"
 )
 
 // Connection is a UDP connection

integrationtests/tools/proxy/proxy_test.go

@@ -9,8 +9,8 @@ import (
 
 	"fmt"
 
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/wire"
-	"github.com/lucas-clemente/quic-go/protocol"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 )

interface.go

@@ -6,7 +6,7 @@ import (
 	"net"
 	"time"
 
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 )
 
 // Stream is the interface implemented by QUIC streams

internal/mocks/cpm.go

@@ -4,10 +4,11 @@
 package mocks
 
 import (
+	time "time"
+
 	gomock "github.com/golang/mock/gomock"
 	handshake "github.com/lucas-clemente/quic-go/handshake"
-	protocol "github.com/lucas-clemente/quic-go/protocol"
+	protocol "github.com/lucas-clemente/quic-go/internal/protocol"
-	time "time"
 )
 
 // Mock of ConnectionParametersManager interface

internal/mocks/mocks_fc/flow_control_manager.go

@@ -6,7 +6,7 @@ package mocks_fc
 import (
 	gomock "github.com/golang/mock/gomock"
 	flowcontrol "github.com/lucas-clemente/quic-go/flowcontrol"
-	protocol "github.com/lucas-clemente/quic-go/protocol"
+	protocol "github.com/lucas-clemente/quic-go/internal/protocol"
 )
 
 // Mock of FlowControlManager interface

internal/protocol/version.go.orig

@@ -0,0 +1,61 @@
+package protocol
+
+// VersionNumber is a version number as int
+type VersionNumber int
+
+// The version numbers, making grepping easier
+const (
+	Version35 VersionNumber = 35 + iota
+	Version36
+	Version37
+<<<<<<< Updated upstream
+=======
+	Version38
+>>>>>>> Stashed changes
+	Version39
+	VersionWhatever    VersionNumber = 0 // for when the version doesn't matter
+	VersionUnsupported VersionNumber = -1
+	VersionUnknown     VersionNumber = -2
+)
+
+// SupportedVersions lists the versions that the server supports
+// must be in sorted descending order
+var SupportedVersions = []VersionNumber{
+	Version39, //Version37, Version36, Version35,
+}
+
+// VersionNumberToTag maps version numbers ('32') to tags ('Q032')
+func VersionNumberToTag(vn VersionNumber) uint32 {
+	v := uint32(vn)
+	return 'Q' + ((v/100%10)+'0')<<8 + ((v/10%10)+'0')<<16 + ((v%10)+'0')<<24
+}
+
+// VersionTagToNumber is built from VersionNumberToTag in init()
+func VersionTagToNumber(v uint32) VersionNumber {
+	return VersionNumber(((v>>8)&0xff-'0')*100 + ((v>>16)&0xff-'0')*10 + ((v>>24)&0xff - '0'))
+}
+
+// IsSupportedVersion returns true if the server supports this version
+func IsSupportedVersion(supported []VersionNumber, v VersionNumber) bool {
+	for _, t := range supported {
+		if t == v {
+			return true
+		}
+	}
+	return false
+}
+
+// ChooseSupportedVersion finds the best version in the overlap of ours and theirs
+// ours is a slice of versions that we support, sorted by our preference (descending)
+// theirs is a slice of versions offered by the peer. The order does not matter
+// if no suitable version is found, it returns VersionUnsupported
+func ChooseSupportedVersion(ours, theirs []VersionNumber) VersionNumber {
+	for _, ourVer := range ours {
+		for _, theirVer := range theirs {
+			if ourVer == theirVer {
+				return ourVer
+			}
+		}
+	}
+	return VersionUnsupported
+}

internal/utils/byteorder.go

@@ -4,7 +4,7 @@ import (
 	"bytes"
 	"io"
 
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 )
 
 // A ByteOrder specifies how to convert byte sequences into 16-, 32-, or 64-bit unsigned integers.

internal/utils/byteorder_test.go

@@ -1,7 +1,7 @@
 package utils
 
 import (
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 )

internal/utils/connection_id.go

@@ -4,7 +4,7 @@ import (
 	"crypto/rand"
 	"encoding/binary"
 
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 )
 
 // GenerateConnectionID generates a connection ID using cryptographic random

internal/utils/minmax.go

@@ -4,7 +4,7 @@ import (
 	"math"
 	"time"
 
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 )
 
 // InfDuration is a duration of infinite length

internal/utils/minmax_test.go

@@ -3,7 +3,7 @@ package utils
 import (
 	"time"
 
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 )

internal/utils/packet_interval.go

@@ -1,6 +1,6 @@
 package utils
 
-import "github.com/lucas-clemente/quic-go/protocol"
+import "github.com/lucas-clemente/quic-go/internal/protocol"
 
 // PacketInterval is an interval from one PacketNumber to the other
 // +gen linkedlist

internal/utils/streamframe_interval.go

@@ -1,6 +1,6 @@
 package utils
 
-import "github.com/lucas-clemente/quic-go/protocol"
+import "github.com/lucas-clemente/quic-go/internal/protocol"
 
 // ByteInterval is an interval from one ByteCount to the other
 // +gen linkedlist

internal/wire/ack_frame.go

@@ -5,8 +5,8 @@ import (
 	"errors"
 	"time"
 
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 )
 
 var (

internal/wire/ack_frame_test.go

@@ -6,7 +6,7 @@ import (
 	"io"
 	"time"
 
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 )

internal/wire/ack_range.go

@@ -1,6 +1,6 @@
 package wire
 
-import "github.com/lucas-clemente/quic-go/protocol"
+import "github.com/lucas-clemente/quic-go/internal/protocol"
 
 // AckRange is an ACK range
 type AckRange struct {

internal/wire/blocked_frame.go

@@ -3,8 +3,8 @@ package wire
 import (
 	"bytes"
 
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 )
 
 // A BlockedFrame in QUIC

internal/wire/blocked_frame_test.go

@@ -3,7 +3,7 @@ package wire
 import (
 	"bytes"
 
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 )

internal/wire/connection_close_frame.go

@@ -6,8 +6,8 @@ import (
 	"io"
 	"math"
 
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 	"github.com/lucas-clemente/quic-go/qerr"
 )
 

internal/wire/connection_close_frame_test.go

@@ -4,7 +4,7 @@ import (
 	"bytes"
 	"strings"
 
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/qerr"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"

internal/wire/frame.go

@@ -3,7 +3,7 @@ package wire
 import (
 	"bytes"
 
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 )
 
 // A Frame in QUIC

internal/wire/goaway_frame.go

@@ -4,8 +4,8 @@ import (
 	"bytes"
 	"io"
 
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 	"github.com/lucas-clemente/quic-go/qerr"
 )
 

internal/wire/goaway_frame_test.go

@@ -3,7 +3,7 @@ package wire
 import (
 	"bytes"
 
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/qerr"
 
 	. "github.com/onsi/ginkgo"

internal/wire/log_test.go

@@ -6,8 +6,8 @@ import (
 	"os"
 	"time"
 
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
-	"github.com/lucas-clemente/quic-go/protocol"
 
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"

internal/wire/ping_frame.go

@@ -3,7 +3,7 @@ package wire
 import (
 	"bytes"
 
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 )
 
 // A PingFrame is a ping frame

internal/wire/ping_frame_test.go

@@ -3,7 +3,7 @@ package wire
 import (
 	"bytes"
 
-	"github.com/lucas-clemente/quic-go/protocol"
+	"github.com/lucas-clemente/quic-go/internal/protocol"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 )