conntrack

const (
	CTA_TUPLE_ORIG  = 1
	CTA_TUPLE_REPLY = 2
	CTA_STATUS      = 3
	CTA_TIMEOUT     = 7
	CTA_MARK        = 8
	CTA_PROTOINFO   = 4
	CTA_LABELS      = 22
)

enum ctattr_type {
	CTA_UNSPEC,
	CTA_TUPLE_ORIG,
	CTA_TUPLE_REPLY,
	CTA_STATUS,
	CTA_PROTOINFO,
	CTA_HELP,
	CTA_NAT_SRC,

#define CTA_NAT CTA_NAT_SRC /* backwards compatibility */

	CTA_TIMEOUT,
	CTA_MARK,
	CTA_COUNTERS_ORIG,
	CTA_COUNTERS_REPLY,
	CTA_USE,
	CTA_ID,
	CTA_NAT_DST,
	CTA_TUPLE_MASTER,
	CTA_SEQ_ADJ_ORIG,
	CTA_NAT_SEQ_ADJ_ORIG	= CTA_SEQ_ADJ_ORIG,
	CTA_SEQ_ADJ_REPLY,
	CTA_NAT_SEQ_ADJ_REPLY	= CTA_SEQ_ADJ_REPLY,
	CTA_SECMARK,		/* obsolete */
	CTA_ZONE,
	CTA_SECCTX,
	CTA_TIMESTAMP,
	CTA_MARK_MASK,
	CTA_LABELS,
	CTA_LABELS_MASK,
	__CTA_MAX
};

const (
	CTA_TUPLE_IP    = 1
	CTA_TUPLE_PROTO = 2
)

enum ctattr_tuple {
	CTA_TUPLE_UNSPEC,
	CTA_TUPLE_IP,
	CTA_TUPLE_PROTO,
	CTA_TUPLE_ZONE,
	__CTA_TUPLE_MAX
};

#define CTA_TUPLE_MAX (__CTA_TUPLE_MAX - 1)

const (
	CTA_IP_V4_SRC = 1
	CTA_IP_V4_DST = 2
	CTA_IP_V6_SRC = 3
	CTA_IP_V6_DST = 4
)

enum ctattr_ip {
	CTA_IP_UNSPEC,
	CTA_IP_V4_SRC,
	CTA_IP_V4_DST,
	CTA_IP_V6_SRC,
	CTA_IP_V6_DST,
	__CTA_IP_MAX
};

#define CTA_IP_MAX (__CTA_IP_MAX - 1)

const (
	CTA_PROTO_NUM      = 1
	CTA_PROTO_SRC_PORT = 2
	CTA_PROTO_DST_PORT = 3
)

enum ctattr_l4proto {
	CTA_PROTO_UNSPEC,
	CTA_PROTO_NUM,
	CTA_PROTO_SRC_PORT,
	CTA_PROTO_DST_PORT,
	CTA_PROTO_ICMP_ID,
	CTA_PROTO_ICMP_TYPE,
	CTA_PROTO_ICMP_CODE,
	CTA_PROTO_ICMPV6_ID,
	CTA_PROTO_ICMPV6_TYPE,
	CTA_PROTO_ICMPV6_CODE,
	__CTA_PROTO_MAX
};

#define CTA_PROTO_MAX (__CTA_PROTO_MAX - 1)

const (
	CTA_PROTOINFO_TCP_STATE           = 1
	CTA_PROTOINFO_TCP_WSCALE_ORIGINAL = 2
	CTA_PROTOINFO_TCP_WSCALE_REPLY    = 3
	CTA_PROTOINFO_TCP_FLAGS_ORIGINAL  = 4
	CTA_PROTOINFO_TCP_FLAGS_REPLY     = 5
)

enum ctattr_protoinfo_tcp {
	CTA_PROTOINFO_TCP_UNSPEC,
	CTA_PROTOINFO_TCP_STATE,
	CTA_PROTOINFO_TCP_WSCALE_ORIGINAL,
	CTA_PROTOINFO_TCP_WSCALE_REPLY,
	CTA_PROTOINFO_TCP_FLAGS_ORIGINAL,
	CTA_PROTOINFO_TCP_FLAGS_REPLY,
	__CTA_PROTOINFO_TCP_MAX
};

#define CTA_PROTOINFO_TCP_MAX (__CTA_PROTOINFO_TCP_MAX - 1)

const (

	//NOTE: THE BELOW VALUES ARE JUST FOR CHANGING MARK. IF NEEDED, THE SIZE HAS TO BE CHANGED WHEN ADDING NEW ATTRIBUTES
	SizeOfNestedTupleOrig uint32 = 48

	SizeOfNestedTupleIP uint32 = 16

	SizeOfNestedTupleProto uint32 = 24

	SizeofNestedProtoInfo uint32 = 20

	SizeofNestedProtoInfoTCP uint32 = 16
)

const (

	//NOTE: THE BELOW CONSTANTS SHOULD BE IN /etc/xtables/connlabel.conf, if for instance ENCRYPTED here is 2, then in connlabel.conf ENCRYPTED should be 1
	ENCRYPTED = 1
	DECRYPTED = 2
)

const (
	PROTO_NUM_LEN      = 5
	PROTO_SRC_PORT_LEN = 6
	PROTO_DST_PORT_LEN = 6
)

Padded attribute lengths

const (
	CTA_PROTOINFO_TCP = 1
)

enum ctattr_protoinfo {
	CTA_PROTOINFO_UNSPEC,
	CTA_PROTOINFO_TCP,
	CTA_PROTOINFO_DCCP,
	CTA_PROTOINFO_SCTP,
	__CTA_PROTOINFO_MAX
};

#define CTA_PROTOINFO_MAX (__CTA_PROTOINFO_MAX - 1)

const (
	NLA_F_NESTED = (1 << 15)
)

#define NLA_F_NESTED (1 << 15)