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   1 #ifndef _NFNETLINK_QUEUE_H
   2 #define _NFNETLINK_QUEUE_H
   3
   4 #include <linux/netfilter/nfnetlink.h>
   5
   6 enum nfqnl_msg_types {
   7         NFQNL_MSG_PACKET,               /* packet from kernel to userspace */
   8         NFQNL_MSG_VERDICT,              /* verdict from userspace to kernel */
   9         NFQNL_MSG_CONFIG,               /* connect to a particular queue */
  10
  11         NFQNL_MSG_MAX
  12 };
  13
  14 struct nfqnl_msg_packet_hdr {
  15         u_int32_t       packet_id;      /* unique ID of packet in queue */
  16         u_int16_t       hw_protocol;    /* hw protocol (network order) */
  17         u_int8_t        hook;           /* netfilter hook */
  18 } __attribute__ ((packed));
  19
  20 struct nfqnl_msg_packet_hw {
  21         u_int16_t       hw_addrlen;
  22         u_int16_t       _pad;
  23         u_int8_t        hw_addr[8];
  24 } __attribute__ ((packed));
  25
  26 struct nfqnl_msg_packet_timestamp {
  27         u_int64_t       sec;
  28         u_int64_t       usec;
  29 } __attribute__ ((packed));
  30
  31 enum nfqnl_attr_type {
  32         NFQA_UNSPEC,
  33         NFQA_PACKET_HDR,
  34         NFQA_VERDICT_HDR,               /* nfqnl_msg_verdict_hrd */
  35         NFQA_MARK,                      /* u_int32_t nfmark */
  36         NFQA_TIMESTAMP,                 /* nfqnl_msg_packet_timestamp */
  37         NFQA_IFINDEX_INDEV,             /* u_int32_t ifindex */
  38         NFQA_IFINDEX_OUTDEV,            /* u_int32_t ifindex */
  39         NFQA_HWADDR,                    /* nfqnl_msg_packet_hw */
  40         NFQA_PAYLOAD,                   /* opaque data payload */
  41
  42         __NFQA_MAX
  43 };
  44 #define NFQA_MAX (__NFQA_MAX - 1)
  45
  46 struct nfqnl_msg_verdict_hdr {
  47         u_int32_t verdict;
  48         u_int32_t id;
  49 } __attribute__ ((packed));
  50
  51
  52 enum nfqnl_msg_config_cmds {
  53         NFQNL_CFG_CMD_NONE,
  54         NFQNL_CFG_CMD_BIND,
  55         NFQNL_CFG_CMD_UNBIND,
  56         NFQNL_CFG_CMD_PF_BIND,
  57         NFQNL_CFG_CMD_PF_UNBIND,
  58 };
  59
  60 struct nfqnl_msg_config_cmd {
  61         u_int8_t        command;        /* nfqnl_msg_config_cmds */
  62         u_int8_t        _pad;
  63         u_int16_t       pf;             /* AF_xxx for PF_[UN]BIND */
  64 } __attribute__ ((packed));
  65
  66 enum nfqnl_config_mode {
  67         NFQNL_COPY_NONE,
  68         NFQNL_COPY_META,
  69         NFQNL_COPY_PACKET,
  70 };
  71
  72 struct nfqnl_msg_config_params {
  73         u_int32_t       copy_range;
  74         u_int8_t        copy_mode;      /* enum nfqnl_config_mode */
  75 } __attribute__ ((packed));
  76
  77
  78 enum nfqnl_attr_config {
  79         NFQA_CFG_UNSPEC,
  80         NFQA_CFG_CMD,                   /* nfqnl_msg_config_cmd */
  81         NFQA_CFG_PARAMS,                /* nfqnl_msg_config_params */
  82         __NFQA_CFG_MAX
  83 };
  84
  85 #endif /* _NFNETLINK_QUEUE_H */