Add vless encryption

common/vision/hook.go

@@ -0,0 +1,25 @@
+package vision
+
+import (
+	"context"
+	"net"
+)
+
+type Hook func(net.Conn)
+
+type hookKey struct{}
+
+func WithHook(ctx context.Context, hook Hook) context.Context {
+	if hook == nil {
+		return ctx
+	}
+	return context.WithValue(ctx, hookKey{}, hook)
+}
+
+func HookFromContext(ctx context.Context) (Hook, bool) {
+	if ctx == nil {
+		return nil, false
+	}
+	hook, ok := ctx.Value(hookKey{}).(Hook)
+	return hook, ok
+}

common/xray/cpuid/cpuid.go

@@ -0,0 +1,18 @@
+package cpuid
+
+import (
+	"runtime"
+
+	"golang.org/x/sys/cpu"
+)
+
+var (
+	// Keep in sync with crypto/tls/cipher_suites.go.
+	hasGCMAsmAMD64 = cpu.X86.HasAES && cpu.X86.HasPCLMULQDQ
+	hasGCMAsmARM64 = cpu.ARM64.HasAES && cpu.ARM64.HasPMULL
+	hasGCMAsmS390X = cpu.S390X.HasAES && cpu.S390X.HasAESCBC && cpu.S390X.HasGHASH
+	hasGCMAsmPPC64 = runtime.GOARCH == "ppc64" || runtime.GOARCH == "ppc64le"
+
+	// HasAESGCM indicates whether the CPU has AES-GCM hardware acceleration.
+	HasAESGCM = hasGCMAsmAMD64 || hasGCMAsmARM64 || hasGCMAsmS390X || hasGCMAsmPPC64
+)