1 #ifndef _NFNETLINK_QUEUE_H
2 #define _NFNETLINK_QUEUE_H
4 #include <linux/types.h>
5 #include <linux/netfilter/nfnetlink.h>
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 */
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
));
22 struct nfqnl_msg_packet_hw
{
28 struct nfqnl_msg_packet_timestamp
{
33 enum nfqnl_attr_type
{
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 NFQA_CT
, /* nf_conntrack_netlink.h */
46 NFQA_CT_INFO
, /* enum ip_conntrack_info */
47 NFQA_CAP_LEN
, /* __u32 length of captured packet */
48 NFQA_SKB_INFO
, /* __u32 skb meta information */
49 NFQA_EXP
, /* nf_conntrack_netlink.h */
50 NFQA_UID
, /* __u32 sk uid */
51 NFQA_GID
, /* __u32 sk gid */
52 NFQA_SECCTX
, /* security context string */
56 #define NFQA_MAX (__NFQA_MAX - 1)
58 struct nfqnl_msg_verdict_hdr
{
64 enum nfqnl_msg_config_cmds
{
68 NFQNL_CFG_CMD_PF_BIND
,
69 NFQNL_CFG_CMD_PF_UNBIND
,
72 struct nfqnl_msg_config_cmd
{
73 __u8 command
; /* nfqnl_msg_config_cmds */
75 __be16 pf
; /* AF_xxx for PF_[UN]BIND */
78 enum nfqnl_config_mode
{
84 struct nfqnl_msg_config_params
{
86 __u8 copy_mode
; /* enum nfqnl_config_mode */
87 } __attribute__ ((packed
));
90 enum nfqnl_attr_config
{
92 NFQA_CFG_CMD
, /* nfqnl_msg_config_cmd */
93 NFQA_CFG_PARAMS
, /* nfqnl_msg_config_params */
94 NFQA_CFG_QUEUE_MAXLEN
, /* __u32 */
95 NFQA_CFG_MASK
, /* identify which flags to change */
96 NFQA_CFG_FLAGS
, /* value of these flags (__u32) */
99 #define NFQA_CFG_MAX (__NFQA_CFG_MAX-1)
101 /* Flags for NFQA_CFG_FLAGS */
102 #define NFQA_CFG_F_FAIL_OPEN (1 << 0)
103 #define NFQA_CFG_F_CONNTRACK (1 << 1)
104 #define NFQA_CFG_F_GSO (1 << 2)
105 #define NFQA_CFG_F_UID_GID (1 << 3)
106 #define NFQA_CFG_F_SECCTX (1 << 4)
107 #define NFQA_CFG_F_MAX (1 << 5)
109 /* flags for NFQA_SKB_INFO */
110 /* packet appears to have wrong checksums, but they are ok */
111 #define NFQA_SKB_CSUMNOTREADY (1 << 0)
112 /* packet is GSO (i.e., exceeds device mtu) */
113 #define NFQA_SKB_GSO (1 << 1)
114 /* csum not validated (incoming device doesn't support hw checksum, etc.) */
115 #define NFQA_SKB_CSUM_NOTVERIFIED (1 << 2)
117 #endif /* _NFNETLINK_QUEUE_H */