# meta l4proto { tcp, udp, sctp} @th,16,16 { 22, 23, 80 }
[
    {
        "match": {
            "left": {
                "meta": { "key": "l4proto" }
            },
	    "op": "==",
            "right": {
                "set": [
                    6,
                    17,
                    132
                ]
            }
        }
    },
    {
        "match": {
            "left": {
                "payload": {
                    "field": "dport",
                    "protocol": "th"
                }
            },
	    "op": "==",
            "right": {
                "set": [
                    22,
                    23,
                    80
                ]
            }
        }
    }
]

# meta l4proto tcp @th,16,16 { 22, 23, 80}
[
    {
        "match": {
            "left": {
                "payload": {
                    "field": "dport",
                    "protocol": "tcp"
                }
            },
	    "op": "==",
            "right": {
                "set": [
                    22,
                    23,
                    80
                ]
            }
        }
    }
]

# @ll,0,1 1
[
    {
        "match": {
            "left": {
                "&": [
                    {
                        "payload": {
                            "base": "ll",
                            "len": 8,
                            "offset": 0
                        }
                    },
                    128
                ]
            },
            "op": "==",
            "right": 128
        }
    }
]

# @ll,0,8 and 0x80 eq 0x80
[
    {
        "match": {
            "left": {
                "&": [
                    {
                        "payload": {
                            "base": "ll",
                            "len": 8,
                            "offset": 0
                        }
                    },
                    128
                ]
            },
            "op": "==",
            "right": 128
        }
    }
]