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