golden hour

/usr/include/linux/netfilter

File/Folder	Size	Actions
ipset	-
nf_conntrack_common.h	3.81 KB
nf_conntrack_ftp.h	375 B
nf_conntrack_sctp.h	595 B
nf_conntrack_tcp.h	1.24 KB
nf_conntrack_tuple_common.h	708 B
nf_nat.h	1.12 KB
nf_tables.h	31.31 KB
nf_tables_compat.h	668 B
nfnetlink.h	2.01 KB
nfnetlink_acct.h	522 B
nfnetlink_compat.h	2.33 KB
nfnetlink_conntrack.h	5.42 KB
nfnetlink_cthelper.h	1.11 KB
nfnetlink_cttimeout.h	2.8 KB
nfnetlink_log.h	2.51 KB
nfnetlink_queue.h	2.88 KB
x_tables.h	4.3 KB
xt_AUDIT.h	655 B
xt_CHECKSUM.h	500 B
xt_CLASSIFY.h	154 B
xt_CONNMARK.h	136 B
xt_CONNSECMARK.h	238 B
xt_CT.h	790 B
xt_DSCP.h	709 B
xt_HMARK.h	841 B
xt_IDLETIMER.h	1.3 KB
xt_LED.h	407 B
xt_LOG.h	579 B
xt_MARK.h	121 B
xt_NFLOG.h	326 B
xt_NFQUEUE.h	716 B
xt_RATEEST.h	305 B
xt_SECMARK.h	486 B
xt_TCPMSS.h	172 B
xt_TCPOPTSTRIP.h	344 B
xt_TEE.h	240 B
xt_TPROXY.h	483 B
xt_addrtype.h	1021 B
xt_bpf.h	340 B
xt_cgroup.h	149 B
xt_cluster.h	311 B
xt_comment.h	167 B
xt_connbytes.h	514 B
xt_connlabel.h	217 B
xt_connlimit.h	571 B
xt_connmark.h	853 B
xt_conntrack.h	2.99 KB
xt_cpu.h	136 B
xt_dccp.h	420 B
xt_devgroup.h	366 B
xt_dscp.h	638 B
xt_ecn.h	673 B
xt_esp.h	355 B
xt_hashlimit.h	1.83 KB
xt_helper.h	125 B
xt_iprange.h	518 B
xt_ipvs.h	588 B
xt_length.h	158 B
xt_limit.h	610 B
xt_mac.h	135 B
xt_mark.h	473 B
xt_multiport.h	658 B
xt_nfacct.h	238 B
xt_osf.h	3.27 KB
xt_owner.h	557 B
xt_physdev.h	469 B
xt_pkttype.h	125 B
xt_policy.h	914 B
xt_quota.h	337 B
xt_rateest.h	774 B
xt_realm.h	157 B
xt_recent.h	966 B
xt_rpfilter.h	257 B
xt_sctp.h	2.22 KB
xt_set.h	1.38 KB
xt_socket.h	382 B
xt_state.h	268 B
xt_statistic.h	653 B
xt_string.h	601 B
xt_tcpmss.h	190 B
xt_tcpudp.h	1.16 KB
xt_time.h	667 B
xt_u32.h	689 B

Edit: nfnetlink_queue.h

#ifndef _NFNETLINK_QUEUE_H
#define _NFNETLINK_QUEUE_H

#include <linux/types.h>
#include <linux/netfilter/nfnetlink.h>

enum nfqnl_msg_types {
	NFQNL_MSG_PACKET,		/* packet from kernel to userspace */
	NFQNL_MSG_VERDICT,		/* verdict from userspace to kernel */
	NFQNL_MSG_CONFIG,		/* connect to a particular queue */
	NFQNL_MSG_VERDICT_BATCH,	/* batchv from userspace to kernel */

NFQNL_MSG_MAX
};

struct nfqnl_msg_packet_hdr {
	__be32		packet_id;	/* unique ID of packet in queue */
	__be16		hw_protocol;	/* hw protocol (network order) */
	__u8	hook;		/* netfilter hook */
} __attribute__ ((packed));

struct nfqnl_msg_packet_hw {
	__be16		hw_addrlen;
	__u16	_pad;
	__u8	hw_addr[8];
};

struct nfqnl_msg_packet_timestamp {
	__aligned_be64	sec;
	__aligned_be64	usec;
};

enum nfqnl_attr_type {
	NFQA_UNSPEC,
	NFQA_PACKET_HDR,
	NFQA_VERDICT_HDR,		/* nfqnl_msg_verdict_hrd */
	NFQA_MARK,			/* __u32 nfmark */
	NFQA_TIMESTAMP,			/* nfqnl_msg_packet_timestamp */
	NFQA_IFINDEX_INDEV,		/* __u32 ifindex */
	NFQA_IFINDEX_OUTDEV,		/* __u32 ifindex */
	NFQA_IFINDEX_PHYSINDEV,		/* __u32 ifindex */
	NFQA_IFINDEX_PHYSOUTDEV,	/* __u32 ifindex */
	NFQA_HWADDR,			/* nfqnl_msg_packet_hw */
	NFQA_PAYLOAD,			/* opaque data payload */
	NFQA_CT,			/* nf_conntrack_netlink.h */
	NFQA_CT_INFO,			/* enum ip_conntrack_info */
	NFQA_CAP_LEN,			/* __u32 length of captured packet */
	NFQA_SKB_INFO,			/* __u32 skb meta information */
	NFQA_EXP,			/* nf_conntrack_netlink.h */

__NFQA_MAX
};
#define NFQA_MAX (__NFQA_MAX - 1)

struct nfqnl_msg_verdict_hdr {
	__be32 verdict;
	__be32 id;
};

enum nfqnl_msg_config_cmds {
	NFQNL_CFG_CMD_NONE,
	NFQNL_CFG_CMD_BIND,
	NFQNL_CFG_CMD_UNBIND,
	NFQNL_CFG_CMD_PF_BIND,
	NFQNL_CFG_CMD_PF_UNBIND,
};

struct nfqnl_msg_config_cmd {
	__u8	command;	/* nfqnl_msg_config_cmds */
	__u8	_pad;
	__be16		pf;		/* AF_xxx for PF_[UN]BIND */
};

enum nfqnl_config_mode {
	NFQNL_COPY_NONE,
	NFQNL_COPY_META,
	NFQNL_COPY_PACKET,
};

struct nfqnl_msg_config_params {
	__be32		copy_range;
	__u8	copy_mode;	/* enum nfqnl_config_mode */
} __attribute__ ((packed));

enum nfqnl_attr_config {
	NFQA_CFG_UNSPEC,
	NFQA_CFG_CMD,			/* nfqnl_msg_config_cmd */
	NFQA_CFG_PARAMS,		/* nfqnl_msg_config_params */
	NFQA_CFG_QUEUE_MAXLEN,		/* __u32 */
	NFQA_CFG_MASK,			/* identify which flags to change */
	NFQA_CFG_FLAGS,			/* value of these flags (__u32) */
	__NFQA_CFG_MAX
};
#define NFQA_CFG_MAX (__NFQA_CFG_MAX-1)

/* Flags for NFQA_CFG_FLAGS */
#define NFQA_CFG_F_FAIL_OPEN			(1 << 0)
#define NFQA_CFG_F_CONNTRACK			(1 << 1)
#define NFQA_CFG_F_GSO				(1 << 2)
#define NFQA_CFG_F_MAX				(1 << 3)

/* flags for NFQA_SKB_INFO */
/* packet appears to have wrong checksums, but they are ok */
#define NFQA_SKB_CSUMNOTREADY (1 << 0)
/* packet is GSO (i.e., exceeds device mtu) */
#define NFQA_SKB_GSO (1 << 1)
/* csum not validated (incoming device doesn't support hw checksum, etc.) */
#define NFQA_SKB_CSUM_NOTVERIFIED (1 << 2)

#endif /* _NFNETLINK_QUEUE_H */