root/include/linux/netfilter/nfnetlink_queue.h

INCLUDED FROM

#ifndef _NFNETLINK_QUEUE_H
#define _NFNETLINK_QUEUE_H

#include <linux/types.h>
#include <linux/netfilter/nfnetlink.h>

enum nfqnl_msg_types {
        NFQNL_MSG_PACKET,               /* packet from kernel to userspace */
        NFQNL_MSG_VERDICT,              /* verdict from userspace to kernel */
        NFQNL_MSG_CONFIG,               /* connect to a particular queue */

        NFQNL_MSG_MAX
};

struct nfqnl_msg_packet_hdr {
        __be32          packet_id;      /* unique ID of packet in queue */
        __be16          hw_protocol;    /* hw protocol (network order) */
        u_int8_t        hook;           /* netfilter hook */
} __attribute__ ((packed));

struct nfqnl_msg_packet_hw {
        __be16          hw_addrlen;
        u_int16_t       _pad;
        u_int8_t        hw_addr[8];
};

struct nfqnl_msg_packet_timestamp {
        aligned_be64    sec;
        aligned_be64    usec;
};

enum nfqnl_attr_type {
        NFQA_UNSPEC,
        NFQA_PACKET_HDR,
        NFQA_VERDICT_HDR,               /* nfqnl_msg_verdict_hrd */
        NFQA_MARK,                      /* u_int32_t nfmark */
        NFQA_TIMESTAMP,                 /* nfqnl_msg_packet_timestamp */
        NFQA_IFINDEX_INDEV,             /* u_int32_t ifindex */
        NFQA_IFINDEX_OUTDEV,            /* u_int32_t ifindex */
        NFQA_IFINDEX_PHYSINDEV,         /* u_int32_t ifindex */
        NFQA_IFINDEX_PHYSOUTDEV,        /* u_int32_t ifindex */
        NFQA_HWADDR,                    /* nfqnl_msg_packet_hw */
        NFQA_PAYLOAD,                   /* opaque data payload */

        __NFQA_MAX
};
#define NFQA_MAX (__NFQA_MAX - 1)

struct nfqnl_msg_verdict_hdr {
        __be32 verdict;
        __be32 id;
};


enum nfqnl_msg_config_cmds {
        NFQNL_CFG_CMD_NONE,
        NFQNL_CFG_CMD_BIND,
        NFQNL_CFG_CMD_UNBIND,
        NFQNL_CFG_CMD_PF_BIND,
        NFQNL_CFG_CMD_PF_UNBIND,
};

struct nfqnl_msg_config_cmd {
        u_int8_t        command;        /* nfqnl_msg_config_cmds */
        u_int8_t        _pad;
        __be16          pf;             /* AF_xxx for PF_[UN]BIND */
};

enum nfqnl_config_mode {
        NFQNL_COPY_NONE,
        NFQNL_COPY_META,
        NFQNL_COPY_PACKET,
};

struct nfqnl_msg_config_params {
        __be32          copy_range;
        u_int8_t        copy_mode;      /* enum nfqnl_config_mode */
} __attribute__ ((packed));


enum nfqnl_attr_config {
        NFQA_CFG_UNSPEC,
        NFQA_CFG_CMD,                   /* nfqnl_msg_config_cmd */
        NFQA_CFG_PARAMS,                /* nfqnl_msg_config_params */
        NFQA_CFG_QUEUE_MAXLEN,          /* u_int32_t */
        __NFQA_CFG_MAX
};
#define NFQA_CFG_MAX (__NFQA_CFG_MAX-1)

#endif /* _NFNETLINK_QUEUE_H */