v1.0.0

transport/internet/quic/config.go

@@ -0,0 +1,49 @@
+// +build !confonly
+
+package quic
+
+import (
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/sha256"
+
+	"github.com/xtls/xray-core/v1/common"
+	"github.com/xtls/xray-core/v1/common/protocol"
+	"github.com/xtls/xray-core/v1/transport/internet"
+	"golang.org/x/crypto/chacha20poly1305"
+)
+
+func getAuth(config *Config) (cipher.AEAD, error) {
+	security := config.Security.GetSecurityType()
+	if security == protocol.SecurityType_NONE {
+		return nil, nil
+	}
+
+	salted := []byte(config.Key + "xray-quic-salt")
+	key := sha256.Sum256(salted)
+
+	if security == protocol.SecurityType_AES128_GCM {
+		block, err := aes.NewCipher(key[:16])
+		common.Must(err)
+		return cipher.NewGCM(block)
+	}
+
+	if security == protocol.SecurityType_CHACHA20_POLY1305 {
+		return chacha20poly1305.New(key[:])
+	}
+
+	return nil, newError("unsupported security type")
+}
+
+func getHeader(config *Config) (internet.PacketHeader, error) {
+	if config.Header == nil {
+		return nil, nil
+	}
+
+	msg, err := config.Header.GetInstance()
+	if err != nil {
+		return nil, err
+	}
+
+	return internet.CreatePacketHeader(msg)
+}