refactor: merge openvpn_tcp and openvpn_udp to openvpn

analyzer/internal/openvpn.go

@@ -1,44 +0,0 @@
-package internal
-
-// Ref paper:
-// https://www.usenix.org/system/files/sec22fall_xue-diwen.pdf
-
-// OpenVPN Opcodes definitions from:
-// https://github.com/OpenVPN/openvpn/blob/master/src/openvpn/ssl_pkt.h
-const (
-	OpenVpnControlHardResetClientV1 = 1
-	OpenVpnControlHardResetServerV1 = 2
-	OpenVpnControlSoftResetV1       = 3
-	OpenVpnControlV1                = 4
-	OpenVpnAckV1                    = 5
-	OpenVpnDataV1                   = 6
-	OpenVpnControlHardResetClientV2 = 7
-	OpenVpnControlHardResetServerV2 = 8
-	OpenVpnDataV2                   = 9
-	OpenVpnControlHardResetClientV3 = 10
-	OpenVpnControlWkcV1             = 11
-)
-
-const (
-	OpenVpnMinPktLen          = 6
-	OpenVpnTcpPktDefaultLimit = 256
-	OpenVpnUdpPktDefaultLimit = 256
-)
-
-func OpenVpnCheckForValidOpcode(opcode byte) bool {
-	switch opcode {
-	case OpenVpnControlHardResetClientV1,
-		OpenVpnControlHardResetServerV1,
-		OpenVpnControlSoftResetV1,
-		OpenVpnControlV1,
-		OpenVpnAckV1,
-		OpenVpnDataV1,
-		OpenVpnControlHardResetClientV2,
-		OpenVpnControlHardResetServerV2,
-		OpenVpnDataV2,
-		OpenVpnControlHardResetClientV3,
-		OpenVpnControlWkcV1:
-		return true
-	}
-	return false
-}