add support for Go 1.16

.github/workflows/cross-compile.sh

@@ -11,7 +11,10 @@ for dist in $(go tool dist list); do
 	if [[ "$goos" == "darwin" && $goarch == "arm64" ]]; then continue; fi # ... darwin/arm64 neither
 	if [[ $GOVERSION == "1.14" && $goos == "darwin" && $goarch == "arm" ]]; then continue; fi # Go 1.14 lacks syscall.IPV6_RECVTCLASS
 
+	cgo=0
+	if [[ "$goos" == "ios" ]]; then cgo=1; fi # iOS builds require CGO, see https://github.com/golang/go/issues/43343
+
 	echo "$dist"
-	GOOS=$goos GOARCH=$goarch go build -o main example/main.go
+	GOOS=$goos GOARCH=$goarch CGO_ENABLED=$cgo go build -o main example/main.go
 	rm main
 done

.github/workflows/cross-compile.yml

@@ -3,13 +3,14 @@ jobs:
   crosscompile:
     strategy:
       matrix:
-        go: [ "1.14.x", "1.15.x" ]
+        go: [ "1.14.x", "1.15.x", "1.16.0-beta1" ]
     runs-on: ubuntu-latest
     name: "Cross Compilation (Go ${{matrix.go}})"
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-go@v2
         with:
+          stable: !contains(${{ matrix.go }}, "beta") && !contains(${{ matrix.go }}, "rc")
           go-version: ${{ matrix.go }}
       - name: Install build utils
         run: sudo apt-get install -y gcc-multilib

.github/workflows/integration.yml

@@ -4,13 +4,14 @@ jobs:
   unit:
     strategy:
       matrix:
-        go: [ "1.14", "1.15" ]
+        go: [ "1.14.x", "1.15.x", "1.16.0-beta1" ]
     runs-on: ubuntu-latest
     name: Integration Tests, Go ${{ matrix.go }})
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-go@v2
         with:
+          stable: !contains(${{ matrix.go }}, "beta") && !contains(${{ matrix.go }}, "rc")
           go-version: ${{ matrix.go }}
       - run: go version
       - name: Install Ginkgo

.github/workflows/unit.yml

@@ -7,13 +7,14 @@ jobs:
       fail-fast: false
       matrix:
         os: [ "ubuntu", "windows", "macos" ]
-        go: [ "1.14", "1.15" ]
+        go: [ "1.14.x", "1.15.x", "1.16.0-beta1" ]
     runs-on: ${{ matrix.os }}-latest
     name: Unit tests (${{ matrix.os}}, Go ${{ matrix.go }})
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-go@v2
         with:
+          stable: !contains(${{ matrix.go }}, "beta") && !contains(${{ matrix.go }}, "rc")
           go-version: ${{ matrix.go }}
       - run: go version
       - name: Install test tools

go.mod

@@ -10,6 +10,7 @@ require (
 	github.com/marten-seemann/qpack v0.2.1
 	github.com/marten-seemann/qtls v0.10.0
 	github.com/marten-seemann/qtls-go1-15 v0.1.1
+	github.com/marten-seemann/qtls-go1-16 v0.1.0-beta.1.1
 	github.com/onsi/ginkgo v1.14.0
 	github.com/onsi/gomega v1.10.1
 	go.opencensus.io v0.22.2

go.sum

@@ -89,6 +89,8 @@ github.com/marten-seemann/qtls v0.10.0 h1:ECsuYUKalRL240rRD4Ri33ISb7kAQ3qGDlrrl5
 github.com/marten-seemann/qtls v0.10.0/go.mod h1:UvMd1oaYDACI99/oZUYLzMCkBXQVT0aGm99sJhbT8hs=
 github.com/marten-seemann/qtls-go1-15 v0.1.1 h1:LIH6K34bPVttyXnUWixk0bzH6/N07VxbSabxn5A5gZQ=
 github.com/marten-seemann/qtls-go1-15 v0.1.1/go.mod h1:GyFwywLKkRt+6mfU99csTEY1joMZz5vmB1WNZH3P81I=
+github.com/marten-seemann/qtls-go1-16 v0.1.0-beta.1.1 h1:CWVWoLCcdfarQRGgWi2b9ILKhc5v8MXtfs3bz9dmE00=
+github.com/marten-seemann/qtls-go1-16 v0.1.0-beta.1.1/go.mod h1:gNpI2Ol+lRS3WwSOtIUUtRwZEQMXjYK+dQSBFbethAk=
 github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0jegS5sx/RkqARlsWZ6pIwiU=
 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
 github.com/microcosm-cc/bluemonday v1.0.1/go.mod h1:hsXNsILzKxV+sX77C5b8FSuKF00vh2OMYv+xgHpAMF4=

internal/qtls/go114.go

@@ -1,4 +1,5 @@
 // +build !go1.15
+// +build !go1.16
 
 package qtls
 

internal/qtls/go114_test.go

@@ -1,4 +1,5 @@
 // +build !go1.15
+// +build !go1.16
 
 package qtls
 

internal/qtls/go115.go

@@ -1,4 +1,5 @@
 // +build go1.15
+// +build !go1.16
 
 package qtls
 

internal/qtls/go115_test.go

@@ -1,4 +1,5 @@
 // +build go1.15
+// +build !go1.16
 
 package qtls
 

internal/qtls/go116.go

@@ -0,0 +1,114 @@
+// +build go1.16
+
+package qtls
+
+import (
+	"crypto"
+	"crypto/cipher"
+	"crypto/tls"
+	"net"
+	"unsafe"
+
+	qtls "github.com/marten-seemann/qtls-go1-16"
+)
+
+type (
+	// Alert is a TLS alert
+	Alert = qtls.Alert
+	// A Certificate is qtls.Certificate.
+	Certificate = qtls.Certificate
+	// CertificateRequestInfo contains inforamtion about a certificate request.
+	CertificateRequestInfo = qtls.CertificateRequestInfo
+	// A CipherSuiteTLS13 is a cipher suite for TLS 1.3
+	CipherSuiteTLS13 = qtls.CipherSuiteTLS13
+	// ClientHelloInfo contains information about a ClientHello.
+	ClientHelloInfo = qtls.ClientHelloInfo
+	// ClientSessionCache is a cache used for session resumption.
+	ClientSessionCache = qtls.ClientSessionCache
+	// ClientSessionState is a state needed for session resumption.
+	ClientSessionState = qtls.ClientSessionState
+	// A Config is a qtls.Config.
+	Config = qtls.Config
+	// A Conn is a qtls.Conn.
+	Conn = qtls.Conn
+	// ConnectionState contains information about the state of the connection.
+	ConnectionState = qtls.ConnectionStateWith0RTT
+	// EncryptionLevel is the encryption level of a message.
+	EncryptionLevel = qtls.EncryptionLevel
+	// Extension is a TLS extension
+	Extension = qtls.Extension
+	// ExtraConfig is the qtls.ExtraConfig
+	ExtraConfig = qtls.ExtraConfig
+	// RecordLayer is a qtls RecordLayer.
+	RecordLayer = qtls.RecordLayer
+)
+
+const (
+	// EncryptionHandshake is the Handshake encryption level
+	EncryptionHandshake = qtls.EncryptionHandshake
+	// Encryption0RTT is the 0-RTT encryption level
+	Encryption0RTT = qtls.Encryption0RTT
+	// EncryptionApplication is the application data encryption level
+	EncryptionApplication = qtls.EncryptionApplication
+)
+
+// CipherSuiteName gets the name of a cipher suite.
+func CipherSuiteName(id uint16) string {
+	return qtls.CipherSuiteName(id)
+}
+
+// HkdfExtract generates a pseudorandom key for use with Expand from an input secret and an optional independent salt.
+func HkdfExtract(hash crypto.Hash, newSecret, currentSecret []byte) []byte {
+	return qtls.HkdfExtract(hash, newSecret, currentSecret)
+}
+
+// HkdfExpandLabel HKDF expands a label
+func HkdfExpandLabel(hash crypto.Hash, secret, hashValue []byte, label string, L int) []byte {
+	return qtls.HkdfExpandLabel(hash, secret, hashValue, label, L)
+}
+
+// AEADAESGCMTLS13 creates a new AES-GCM AEAD for TLS 1.3
+func AEADAESGCMTLS13(key, fixedNonce []byte) cipher.AEAD {
+	return qtls.AEADAESGCMTLS13(key, fixedNonce)
+}
+
+// Client returns a new TLS client side connection.
+func Client(conn net.Conn, config *Config, extraConfig *ExtraConfig) *Conn {
+	return qtls.Client(conn, config, extraConfig)
+}
+
+// Server returns a new TLS server side connection.
+func Server(conn net.Conn, config *Config, extraConfig *ExtraConfig) *Conn {
+	return qtls.Server(conn, config, extraConfig)
+}
+
+func GetConnectionState(conn *Conn) ConnectionState {
+	return conn.ConnectionStateWith0RTT()
+}
+
+// ToTLSConnectionState extracts the tls.ConnectionState
+func ToTLSConnectionState(cs ConnectionState) tls.ConnectionState {
+	return cs.ConnectionState
+}
+
+type cipherSuiteTLS13 struct {
+	ID     uint16
+	KeyLen int
+	AEAD   func(key, fixedNonce []byte) cipher.AEAD
+	Hash   crypto.Hash
+}
+
+//go:linkname cipherSuiteTLS13ByID github.com/marten-seemann/qtls-go1-16.cipherSuiteTLS13ByID
+func cipherSuiteTLS13ByID(id uint16) *cipherSuiteTLS13
+
+// CipherSuiteTLS13ByID gets a TLS 1.3 cipher suite.
+func CipherSuiteTLS13ByID(id uint16) *CipherSuiteTLS13 {
+	val := cipherSuiteTLS13ByID(id)
+	cs := (*cipherSuiteTLS13)(unsafe.Pointer(val))
+	return &qtls.CipherSuiteTLS13{
+		ID:     cs.ID,
+		KeyLen: cs.KeyLen,
+		AEAD:   cs.AEAD,
+		Hash:   cs.Hash,
+	}
+}

internal/qtls/go116_test.go

@@ -0,0 +1,19 @@
+// +build go1.16
+
+package qtls
+
+import (
+	"crypto/tls"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("qtls wrapper", func() {
+	It("gets cipher suites", func() {
+		for _, id := range []uint16{tls.TLS_AES_128_GCM_SHA256, tls.TLS_AES_256_GCM_SHA384, tls.TLS_CHACHA20_POLY1305_SHA256} {
+			cs := CipherSuiteTLS13ByID(id)
+			Expect(cs.ID).To(Equal(id))
+		}
+	})
+})