nftrace

type Trace struct {
	// trace id
	ID uint32 `json:"id"`
	// protocols family (ip4/ip6/inet)
	Family string `json:"family"`
	// table name
	Table string `json:"table"`
	// chain name
	Chain string `json:"chain"`
	// rule expression
	Rule string `json:"rule"`
	// rule handle
	Handle uint64 `json:"handle"`
	// target chain name for jumping
	Jump string `json:"jump,omitempty"`
	// rule verdict
	Verdict string `json:"verdict"`
	// input interface name
	IIF string `json:"iif,omitempty"`
	// output interface name
	OIF string `json:"oif,omitempty"`
	// packet length
	Len uint32 `json:"len"`
	// source mac address
	SMAC string `json:"smac,omitempty"`
	// destination mac address
	DMAC string `json:"dmac,omitempty"`
	// ip protocol version (4/6)
	IpVersion uint8 `json:"ip_version,omitempty"`
	// protocol (tcp/udp/icmp/...)
	Proto string `json:"proto"`
	// source ip address
	SAddr string `json:"saddr,omitempty"`
	// destination ip address
	DAddr string `json:"daddr,omitempty"`
	// source port
	SPort uint32 `json:"sport,omitempty"`
	// destination port
	DPort uint32 `json:"dport,omitempty"`
	// aggregated trace counter
	Cnt uint64 `json:"cnt"`
}