1 #ifndef _NFNETLINK_QUEUE_H
2 #define _NFNETLINK_QUEUE_H
3 
4 #include <linux/types.h>
5 #include <linux/netfilter/nfnetlink.h>
6 
7 enum nfqnl_msg_types {
8 	NFQNL_MSG_PACKET,		/* packet from kernel to userspace */
9 	NFQNL_MSG_VERDICT,		/* verdict from userspace to kernel */
10 	NFQNL_MSG_CONFIG,		/* connect to a particular queue */
11 	NFQNL_MSG_VERDICT_BATCH,	/* batchv from userspace to kernel */
12 
13 	NFQNL_MSG_MAX
14 };
15 
16 struct nfqnl_msg_packet_hdr {
17 	__be32		packet_id;	/* unique ID of packet in queue */
18 	__be16		hw_protocol;	/* hw protocol (network order) */
19 	__u8	hook;		/* netfilter hook */
20 } __attribute__ ((packed));
21 
22 struct nfqnl_msg_packet_hw {
23 	__be16		hw_addrlen;
24 	__u16	_pad;
25 	__u8	hw_addr[8];
26 };
27 
28 struct nfqnl_msg_packet_timestamp {
29 	__aligned_be64	sec;
30 	__aligned_be64	usec;
31 };
32 
33 enum nfqnl_attr_type {
34 	NFQA_UNSPEC,
35 	NFQA_PACKET_HDR,
36 	NFQA_VERDICT_HDR,		/* nfqnl_msg_verdict_hrd */
37 	NFQA_MARK,			/* __u32 nfmark */
38 	NFQA_TIMESTAMP,			/* nfqnl_msg_packet_timestamp */
39 	NFQA_IFINDEX_INDEV,		/* __u32 ifindex */
40 	NFQA_IFINDEX_OUTDEV,		/* __u32 ifindex */
41 	NFQA_IFINDEX_PHYSINDEV,		/* __u32 ifindex */
42 	NFQA_IFINDEX_PHYSOUTDEV,	/* __u32 ifindex */
43 	NFQA_HWADDR,			/* nfqnl_msg_packet_hw */
44 	NFQA_PAYLOAD,			/* opaque data payload */
45 
46 	__NFQA_MAX
47 };
48 #define NFQA_MAX (__NFQA_MAX - 1)
49 
50 struct nfqnl_msg_verdict_hdr {
51 	__be32 verdict;
52 	__be32 id;
53 };
54 
55 
56 enum nfqnl_msg_config_cmds {
57 	NFQNL_CFG_CMD_NONE,
58 	NFQNL_CFG_CMD_BIND,
59 	NFQNL_CFG_CMD_UNBIND,
60 	NFQNL_CFG_CMD_PF_BIND,
61 	NFQNL_CFG_CMD_PF_UNBIND,
62 };
63 
64 struct nfqnl_msg_config_cmd {
65 	__u8	command;	/* nfqnl_msg_config_cmds */
66 	__u8	_pad;
67 	__be16		pf;		/* AF_xxx for PF_[UN]BIND */
68 };
69 
70 enum nfqnl_config_mode {
71 	NFQNL_COPY_NONE,
72 	NFQNL_COPY_META,
73 	NFQNL_COPY_PACKET,
74 };
75 
76 struct nfqnl_msg_config_params {
77 	__be32		copy_range;
78 	__u8	copy_mode;	/* enum nfqnl_config_mode */
79 } __attribute__ ((packed));
80 
81 
82 enum nfqnl_attr_config {
83 	NFQA_CFG_UNSPEC,
84 	NFQA_CFG_CMD,			/* nfqnl_msg_config_cmd */
85 	NFQA_CFG_PARAMS,		/* nfqnl_msg_config_params */
86 	NFQA_CFG_QUEUE_MAXLEN,		/* __u32 */
87 	__NFQA_CFG_MAX
88 };
89 #define NFQA_CFG_MAX (__NFQA_CFG_MAX-1)
90 
91 #endif /* _NFNETLINK_QUEUE_H */
92