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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_IFINDEX_PHYSINDEV,         /* u_int32_t ifindex */
  40         NFQA_IFINDEX_PHYSOUTDEV,        /* u_int32_t ifindex */
  41         NFQA_HWADDR,                    /* nfqnl_msg_packet_hw */
  42         NFQA_PAYLOAD,                   /* opaque data payload */
  43
  44         __NFQA_MAX
  45 };
  46 #define NFQA_MAX (__NFQA_MAX - 1)
  47
  48 struct nfqnl_msg_verdict_hdr {
  49         u_int32_t verdict;
  50         u_int32_t id;
  51 } __attribute__ ((packed));
  52
  53
  54 enum nfqnl_msg_config_cmds {
  55         NFQNL_CFG_CMD_NONE,
  56         NFQNL_CFG_CMD_BIND,
  57         NFQNL_CFG_CMD_UNBIND,
  58         NFQNL_CFG_CMD_PF_BIND,
  59         NFQNL_CFG_CMD_PF_UNBIND,
  60 };
  61
  62 struct nfqnl_msg_config_cmd {
  63         u_int8_t        command;        /* nfqnl_msg_config_cmds */
  64         u_int8_t        _pad;
  65         u_int16_t       pf;             /* AF_xxx for PF_[UN]BIND */
  66 } __attribute__ ((packed));
  67
  68 enum nfqnl_config_mode {
  69         NFQNL_COPY_NONE,
  70         NFQNL_COPY_META,
  71         NFQNL_COPY_PACKET,
  72 };
  73
  74 struct nfqnl_msg_config_params {
  75         u_int32_t       copy_range;
  76         u_int8_t        copy_mode;      /* enum nfqnl_config_mode */
  77 } __attribute__ ((packed));
  78
  79
  80 enum nfqnl_attr_config {
  81         NFQA_CFG_UNSPEC,
  82         NFQA_CFG_CMD,                   /* nfqnl_msg_config_cmd */
  83         NFQA_CFG_PARAMS,                /* nfqnl_msg_config_params */
  84         __NFQA_CFG_MAX
  85 };
  86 #define NFQA_CFG_MAX (__NFQA_CFG_MAX-1)
  87
  88 #endif /* _NFNETLINK_QUEUE_H */