BuildNfAttrMsg -- Build nfattr messagelength -- length of the attr payload -- unusedattrType -- Type of attr being addeddata --- The actual data being added.

BuildNfAttrWithPaddingMsg -- Build nfattrWithPadding messageattrType -- Type of attr which needs paddingdataLen -- Length of the attribute.

BuildNfgenMsg -- Build nfgen msg strcuurefamily -- SOCK FAMILYVersion -- VersionresId -- queuenumn - syscall.NlMsghdr to adjust length after adding nfgen.

BuildNfAttrMsg -- Build nfattr messageattrType -- Type of attr being addeddataLEn -- Length of the attribute.

BuildNlMsgHeader -- Build syscall.NlMsgHdr structuremsgType: The message type to be send | SUBSYSID - 3 for usLen: Len of the payload including the sizeof nlmsghdrmsgFlags: Request Flags.

IP2int converts uint32 to net.IP.

IP2int converts net.IP to uint32.

NetlinkErrMessagetoStruct -- parse byte slice and return syscall.NlMsgerr.

NetlinkMessageToNfAttrStruct -- Convert byte slice representing nfattr to nfattr struct slice.

NetlinkMessageToNfGenStruct -- Convert netlink byte slice to nfqgen msg structure.

NetlinkMessageToStruct -- Convert netlink message byte slice to struct and payload.

NfaAlign -- Align to 4 byte boundary.

NfaAlign32 -- Align to 4 byte boundary.

NfaLength -- adjust length to end on 4 byte multiple.

NlMsgAlign -- Align to 4 byte boundary.

NlMsgLength -- adjust length to end on 4 byte multiple.

NlMsgSpace -- Space required to hold this message.

NlMsgSubsysID returns the subsystem id -- 3 for queue.

NlMsgType Returns the Messagetype.

SerializeNlMsgHdr -- Serialize syscall.NlMsgHdr to byte slice.

SerializeNlMsgHdrBuf -- Serialize into passed buffer and returns number of bytes copied.

APUNSPEC -- PF_UNSPEC/AF_UNSPEC.

ConntrackExpectTable Conntrack expect table https://github.com/torvalds/linux/blob/master/include/uapi/linux/netfilter/nfnetlink.h -> #define NFNL_SUBSYS_CTNETLINK_EXP 2.

ConntrackTable Conntrack table https://github.com/torvalds/linux/blob/master/include/uapi/linux/netfilter/nfnetlink.h -> #define NFNL_SUBSYS_CTNETLINK 1.

https://github.com/torvalds/linux/blob/master/include/uapi/linux/netfilter/nfnetlink_conntrack.h.

https://github.com/torvalds/linux/blob/master/include/uapi/linux/netfilter/nfnetlink_conntrack.h.

https://github.com/torvalds/linux/blob/master/include/uapi/linux/netfilter/nfnetlink_conntrack.h.

NFNetlinkV0 - netlink v0.

NfnlBuffSize -- Buffer size of socket.

NFCTNL - Netfilter Conntrack Netink message types.

NfqnlMsgConfig connect to a particular queue.

NfqnlMsgPacket packet from kernel to userspace.

NfqnlMsgVerdict verdict from userspace to kernel.

NfqnlMsgVerdictBatch batch verdict from userspace to kernel.

NFQUEUESUBSYSID The netlink subsystem id for nfqueue.

NlmFAck -- Reply with ack, with zero or error code */.

NlmFDumpFiltered -- Dump was filtered as requested */.

NlmFDumpintr -- Dump was inconsistent due to sequence change */.

NlmFEcho -- Echo this request */.

NlmFMulti -- Multipart message, terminated by NlMsgDone */.

NlmFRequest -- It is request message.

end of a dump */.

error */.

nothing.

data lost */.

SizeofMsgConfigCommand -- Sizeof config command struct.

SizeofNfAttr -- Sizeof nfattr struct This does not account for the size of the byte slice at the end.

SizeofNfGenMsg -- Sizeof nfgen msg struct.

SizeOfNfqMsgConfigParams -- Sizeof NfqMsgConfigParams.

SizeOfNfqMsgConfigQueueLen -- Sizeof NfqMsgConfigQueueLen.

SizeofNfqMsgMarkHdr -- sizeof mark hdr.

SizeofNfqMsgVerdictHdr -- Sizeof verdict hdr struct.

SOCKFAMILY constant for AF_NETLINK.

syscall.SOL_NETLINK not defined */.

For generic use.

For generic use.

NfAttr -- attr struct headernfaLen -- sizeof struct + payloadnfaType -- nfaType.

NfAttrResponsePayload -- Response of attr from netlinkattr -- NfAttrdata -- payload for response.

NfqGenMsg -- the nfgen msg structurenfGenFamily -- Familyversion -- netlink versionresId -- queueNum in big endian format.

NfqMsgConfigCommand -- config commandCommand -- the config commandpf -- family.

NfqMsgConfigParams -- Config paramscopyRange -- Range of bytes to copycopyMode -- copyMode meta/none/packet.

NfqMsgConfigQueueLen -- Queue lengthqueueLen -- The length of queue.

NfqMsgMarkHdr -- Mark Payloadmark -- markval.

NfqMsgVerdictHdr -- Verdict Hdr structverdict -- accept/dropid -- packetid.

NfqNetlinkRequest -- netlink request to sendNlMsgHdr fieldsserialized data of structure passed to netlink.

NfValue16 -- uint16 type attribute structurevalue -- the value for a uint16 type attribute.

NfValue32 -- uint32 type attribute structurevalue -- the value for a uint32 type attribute.

NfValue8 -- uint8 type attribute structurevalue -- the value for a uint8 type attribute.

NfqSockHandle -- Sock handle of netlink socketfd -- fd of socketrcvbufSize -- rcv buffer Sizelsa -- local address.

NfAttrSlice is an array of attributes.

NlmFlags -- The flags passed to NlMsgHdr.