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 */
113