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_vlan_attr {
35 NFQA_VLAN_PROTO, /* __be16 skb vlan_proto */
36 NFQA_VLAN_TCI, /* __be16 skb htons(vlan_tci) */
39 #define NFQA_VLAN_MAX (__NFQA_VLAN_MAX - 1)
41 enum nfqnl_attr_type {
44 NFQA_VERDICT_HDR, /* nfqnl_msg_verdict_hrd */
45 NFQA_MARK, /* __u32 nfmark */
46 NFQA_TIMESTAMP, /* nfqnl_msg_packet_timestamp */
47 NFQA_IFINDEX_INDEV, /* __u32 ifindex */
48 NFQA_IFINDEX_OUTDEV, /* __u32 ifindex */
49 NFQA_IFINDEX_PHYSINDEV, /* __u32 ifindex */
50 NFQA_IFINDEX_PHYSOUTDEV, /* __u32 ifindex */
51 NFQA_HWADDR, /* nfqnl_msg_packet_hw */
52 NFQA_PAYLOAD, /* opaque data payload */
53 NFQA_CT, /* nf_conntrack_netlink.h */
54 NFQA_CT_INFO, /* enum ip_conntrack_info */
55 NFQA_CAP_LEN, /* __u32 length of captured packet */
56 NFQA_SKB_INFO, /* __u32 skb meta information */
57 NFQA_EXP, /* nf_conntrack_netlink.h */
58 NFQA_UID, /* __u32 sk uid */
59 NFQA_GID, /* __u32 sk gid */
60 NFQA_SECCTX, /* security context string */
61 NFQA_VLAN, /* nested attribute: packet vlan info */
62 NFQA_L2HDR, /* full L2 header */
66 #define NFQA_MAX (__NFQA_MAX - 1)
68 struct nfqnl_msg_verdict_hdr {
74 enum nfqnl_msg_config_cmds {
78 NFQNL_CFG_CMD_PF_BIND,
79 NFQNL_CFG_CMD_PF_UNBIND,
82 struct nfqnl_msg_config_cmd {
83 __u8 command; /* nfqnl_msg_config_cmds */
85 __be16 pf; /* AF_xxx for PF_[UN]BIND */
88 enum nfqnl_config_mode {
94 struct nfqnl_msg_config_params {
96 __u8 copy_mode; /* enum nfqnl_config_mode */
97 } __attribute__ ((packed));
100 enum nfqnl_attr_config {
102 NFQA_CFG_CMD, /* nfqnl_msg_config_cmd */
103 NFQA_CFG_PARAMS, /* nfqnl_msg_config_params */
104 NFQA_CFG_QUEUE_MAXLEN, /* __u32 */
105 NFQA_CFG_MASK, /* identify which flags to change */
106 NFQA_CFG_FLAGS, /* value of these flags (__u32) */
109 #define NFQA_CFG_MAX (__NFQA_CFG_MAX-1)
111 /* Flags for NFQA_CFG_FLAGS */
112 #define NFQA_CFG_F_FAIL_OPEN (1 << 0)
113 #define NFQA_CFG_F_CONNTRACK (1 << 1)
114 #define NFQA_CFG_F_GSO (1 << 2)
115 #define NFQA_CFG_F_UID_GID (1 << 3)
116 #define NFQA_CFG_F_SECCTX (1 << 4)
117 #define NFQA_CFG_F_MAX (1 << 5)
119 /* flags for NFQA_SKB_INFO */
120 /* packet appears to have wrong checksums, but they are ok */
121 #define NFQA_SKB_CSUMNOTREADY (1 << 0)
122 /* packet is GSO (i.e., exceeds device mtu) */
123 #define NFQA_SKB_GSO (1 << 1)
124 /* csum not validated (incoming device doesn't support hw checksum, etc.) */
125 #define NFQA_SKB_CSUM_NOTVERIFIED (1 << 2)
127 #endif /* _NFNETLINK_QUEUE_H */