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 */
55 #define NFQA_MAX (__NFQA_MAX - 1)
57 struct nfqnl_msg_verdict_hdr {
63 enum nfqnl_msg_config_cmds {
67 NFQNL_CFG_CMD_PF_BIND,
68 NFQNL_CFG_CMD_PF_UNBIND,
71 struct nfqnl_msg_config_cmd {
72 __u8 command; /* nfqnl_msg_config_cmds */
74 __be16 pf; /* AF_xxx for PF_[UN]BIND */
77 enum nfqnl_config_mode {
83 struct nfqnl_msg_config_params {
85 __u8 copy_mode; /* enum nfqnl_config_mode */
86 } __attribute__ ((packed));
89 enum nfqnl_attr_config {
91 NFQA_CFG_CMD, /* nfqnl_msg_config_cmd */
92 NFQA_CFG_PARAMS, /* nfqnl_msg_config_params */
93 NFQA_CFG_QUEUE_MAXLEN, /* __u32 */
94 NFQA_CFG_MASK, /* identify which flags to change */
95 NFQA_CFG_FLAGS, /* value of these flags (__u32) */
98 #define NFQA_CFG_MAX (__NFQA_CFG_MAX-1)
100 /* Flags for NFQA_CFG_FLAGS */
101 #define NFQA_CFG_F_FAIL_OPEN (1 << 0)
102 #define NFQA_CFG_F_CONNTRACK (1 << 1)
103 #define NFQA_CFG_F_GSO (1 << 2)
104 #define NFQA_CFG_F_UID_GID (1 << 3)
105 #define NFQA_CFG_F_MAX (1 << 4)
107 /* flags for NFQA_SKB_INFO */
108 /* packet appears to have wrong checksums, but they are ok */
109 #define NFQA_SKB_CSUMNOTREADY (1 << 0)
110 /* packet is GSO (i.e., exceeds device mtu) */
111 #define NFQA_SKB_GSO (1 << 1)
112 /* csum not validated (incoming device doesn't support hw checksum, etc.) */
113 #define NFQA_SKB_CSUM_NOTVERIFIED (1 << 2)
115 #endif /* _NFNETLINK_QUEUE_H */