nfnetlink_log.h

  1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  2#ifndef _NFNETLINK_LOG_H
  3#define _NFNETLINK_LOG_H
  4
  5/* This file describes the netlink messages (i.e. 'protocol packets'),
  6 * and not any kind of function definitions.  It is shared between kernel and
  7 * userspace.  Don't put kernel specific stuff in here */
  8
  9#include <linux/types.h>
 10#include <linux/netfilter/nfnetlink.h>
 11
 12enum nfulnl_msg_types {
 13	NFULNL_MSG_PACKET,		/* packet from kernel to userspace */
 14	NFULNL_MSG_CONFIG,		/* connect to a particular queue */
 15
 16	NFULNL_MSG_MAX
 17};
 18
 19struct nfulnl_msg_packet_hdr {
 20	__be16		hw_protocol;	/* hw protocol (network order) */
 21	__u8	hook;		/* netfilter hook */
 22	__u8	_pad;
 23};
 24
 25struct nfulnl_msg_packet_hw {
 26	__be16		hw_addrlen;
 27	__u16	_pad;
 28	__u8	hw_addr[8];
 29};
 30
 31struct nfulnl_msg_packet_timestamp {
 32	__aligned_be64	sec;
 33	__aligned_be64	usec;
 34};
 35
 36enum nfulnl_vlan_attr {
 37	NFULA_VLAN_UNSPEC,
 38	NFULA_VLAN_PROTO,		/* __be16 skb vlan_proto */
 39	NFULA_VLAN_TCI,			/* __be16 skb htons(vlan_tci) */
 40	__NFULA_VLAN_MAX,
 41};
 42
 43#define NFULA_VLAN_MAX (__NFULA_VLAN_MAX + 1)
 44
 45enum nfulnl_attr_type {
 46	NFULA_UNSPEC,
 47	NFULA_PACKET_HDR,
 48	NFULA_MARK,			/* __u32 nfmark */
 49	NFULA_TIMESTAMP,		/* nfulnl_msg_packet_timestamp */
 50	NFULA_IFINDEX_INDEV,		/* __u32 ifindex */
 51	NFULA_IFINDEX_OUTDEV,		/* __u32 ifindex */
 52	NFULA_IFINDEX_PHYSINDEV,	/* __u32 ifindex */
 53	NFULA_IFINDEX_PHYSOUTDEV,	/* __u32 ifindex */
 54	NFULA_HWADDR,			/* nfulnl_msg_packet_hw */
 55	NFULA_PAYLOAD,			/* opaque data payload */
 56	NFULA_PREFIX,			/* string prefix */
 57	NFULA_UID,			/* user id of socket */
 58	NFULA_SEQ,			/* instance-local sequence number */
 59	NFULA_SEQ_GLOBAL,		/* global sequence number */
 60	NFULA_GID,			/* group id of socket */
 61	NFULA_HWTYPE,			/* hardware type */
 62	NFULA_HWHEADER,			/* hardware header */
 63	NFULA_HWLEN,			/* hardware header length */
 64	NFULA_CT,                       /* nfnetlink_conntrack.h */
 65	NFULA_CT_INFO,                  /* enum ip_conntrack_info */
 66	NFULA_VLAN,			/* nested attribute: packet vlan info */
 67	NFULA_L2HDR,			/* full L2 header */
 68
 69	__NFULA_MAX
 70};
 71#define NFULA_MAX (__NFULA_MAX - 1)
 72
 73enum nfulnl_msg_config_cmds {
 74	NFULNL_CFG_CMD_NONE,
 75	NFULNL_CFG_CMD_BIND,
 76	NFULNL_CFG_CMD_UNBIND,
 77	NFULNL_CFG_CMD_PF_BIND,
 78	NFULNL_CFG_CMD_PF_UNBIND,
 79};
 80
 81struct nfulnl_msg_config_cmd {
 82	__u8	command;	/* nfulnl_msg_config_cmds */
 83} __attribute__ ((packed));
 84
 85struct nfulnl_msg_config_mode {
 86	__be32		copy_range;
 87	__u8	copy_mode;
 88	__u8	_pad;
 89} __attribute__ ((packed));
 90
 91enum nfulnl_attr_config {
 92	NFULA_CFG_UNSPEC,
 93	NFULA_CFG_CMD,			/* nfulnl_msg_config_cmd */
 94	NFULA_CFG_MODE,			/* nfulnl_msg_config_mode */
 95	NFULA_CFG_NLBUFSIZ,		/* __u32 buffer size */
 96	NFULA_CFG_TIMEOUT,		/* __u32 in 1/100 s */
 97	NFULA_CFG_QTHRESH,		/* __u32 */
 98	NFULA_CFG_FLAGS,		/* __u16 */
 99	__NFULA_CFG_MAX
100};
101#define NFULA_CFG_MAX (__NFULA_CFG_MAX -1)
102
103#define NFULNL_COPY_NONE	0x00
104#define NFULNL_COPY_META	0x01
105#define NFULNL_COPY_PACKET	0x02
106/* 0xff is reserved, don't use it for new copy modes. */
107
108#define NFULNL_CFG_F_SEQ	0x0001
109#define NFULNL_CFG_F_SEQ_GLOBAL	0x0002
110#define NFULNL_CFG_F_CONNTRACK	0x0004
111
112#endif /* _NFNETLINK_LOG_H */