package vless import ( "bytes" "github.com/sagernet/sing/common/buf" ) var ( tls13SupportedVersions = []byte{0x00, 0x2b, 0x00, 0x02, 0x03, 0x04} tlsClientHandShakeStart = []byte{0x16, 0x03} tlsServerHandShakeStart = []byte{0x16, 0x03, 0x03} tlsApplicationDataStart = []byte{0x17, 0x03, 0x03} ) var tls13CipherSuiteDic = map[uint16]string{ 0x1301: "TLS_AES_128_GCM_SHA256", 0x1302: "TLS_AES_256_GCM_SHA384", 0x1303: "TLS_CHACHA20_POLY1305_SHA256", 0x1304: "TLS_AES_128_CCM_SHA256", 0x1305: "TLS_AES_128_CCM_8_SHA256", } func reshapeBuffer(b []byte) []*buf.Buffer { const bufferLimit = 8192 - 21 if len(b) < bufferLimit { return []*buf.Buffer{buf.As(b)} } index := int32(bytes.LastIndex(b, tlsApplicationDataStart)) if index <= 0 { index = 8192 / 2 } return []*buf.Buffer{buf.As(b[:index]), buf.As(b[index:])} }