Add support for kTLS

Reference: https://gitlab.com/go-extension/tls

common/ktls/ktls_prf.go

@@ -0,0 +1,24 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build linux && go1.25 && !without_badtls
+
+package ktls
+
+import "unsafe"
+
+//go:linkname cipherSuiteByID github.com/metacubex/utls.cipherSuiteByID
+func cipherSuiteByID(id uint16) unsafe.Pointer
+
+//go:linkname keysFromMasterSecret github.com/metacubex/utls.keysFromMasterSecret
+func keysFromMasterSecret(version uint16, suite unsafe.Pointer, masterSecret, clientRandom, serverRandom []byte, macLen, keyLen, ivLen int) (clientMAC, serverMAC, clientKey, serverKey, clientIV, serverIV []byte)
+
+//go:linkname cipherSuiteTLS13ByID github.com/metacubex/utls.cipherSuiteTLS13ByID
+func cipherSuiteTLS13ByID(id uint16) unsafe.Pointer
+
+//go:linkname nextTrafficSecret github.com/metacubex/utls.(*cipherSuiteTLS13).nextTrafficSecret
+func nextTrafficSecret(cs unsafe.Pointer, trafficSecret []byte) []byte
+
+//go:linkname trafficKey github.com/metacubex/utls.(*cipherSuiteTLS13).trafficKey
+func trafficKey(cs unsafe.Pointer, trafficSecret []byte) (key, iv []byte)