include/linux/netfilter/nfnetlink_queue.h

   1 #ifndef _NFNETLINK_QUEUE_H
   2 #define _NFNETLINK_QUEUE_H
   3
   4 #include <linux/types.h>
   5 #include <linux/netfilter/nfnetlink.h>
   6
   7 #ifndef aligned_be64
   8 #define aligned_be64 u_int64_t __attribute__((aligned(8)))
   9 #endif
  10
  11 enum nfqnl_msg_types {
  12         NFQNL_MSG_PACKET,               /* packet from kernel to userspace */
  13         NFQNL_MSG_VERDICT,              /* verdict from userspace to kernel */
  14         NFQNL_MSG_CONFIG,               /* connect to a particular queue */
  15
  16         NFQNL_MSG_MAX
  17 };
  18
  19 struct nfqnl_msg_packet_hdr {
  20         __be32          packet_id;      /* unique ID of packet in queue */
  21         __be16          hw_protocol;    /* hw protocol (network order) */
  22         u_int8_t        hook;           /* netfilter hook */
  23 } __attribute__ ((packed));
  24
  25 struct nfqnl_msg_packet_hw {
  26         __be16          hw_addrlen;
  27         u_int16_t       _pad;
  28         u_int8_t        hw_addr[8];
  29 };
  30
  31 struct nfqnl_msg_packet_timestamp {
  32         aligned_be64    sec;
  33         aligned_be64    usec;
  34 };
  35
  36 enum nfqnl_attr_type {
  37         NFQA_UNSPEC,
  38         NFQA_PACKET_HDR,
  39         NFQA_VERDICT_HDR,               /* nfqnl_msg_verdict_hrd */
  40         NFQA_MARK,                      /* u_int32_t nfmark */
  41         NFQA_TIMESTAMP,                 /* nfqnl_msg_packet_timestamp */
  42         NFQA_IFINDEX_INDEV,             /* u_int32_t ifindex */
  43         NFQA_IFINDEX_OUTDEV,            /* u_int32_t ifindex */
  44         NFQA_IFINDEX_PHYSINDEV,         /* u_int32_t ifindex */
  45         NFQA_IFINDEX_PHYSOUTDEV,        /* u_int32_t ifindex */
  46         NFQA_HWADDR,                    /* nfqnl_msg_packet_hw */
  47         NFQA_PAYLOAD,                   /* opaque data payload */
  48
  49         __NFQA_MAX
  50 };
  51 #define NFQA_MAX (__NFQA_MAX - 1)
  52
  53 struct nfqnl_msg_verdict_hdr {
  54         __be32 verdict;
  55         __be32 id;
  56 };
  57
  58
  59 enum nfqnl_msg_config_cmds {
  60         NFQNL_CFG_CMD_NONE,
  61         NFQNL_CFG_CMD_BIND,
  62         NFQNL_CFG_CMD_UNBIND,
  63         NFQNL_CFG_CMD_PF_BIND,
  64         NFQNL_CFG_CMD_PF_UNBIND,
  65 };
  66
  67 struct nfqnl_msg_config_cmd {
  68         u_int8_t        command;        /* nfqnl_msg_config_cmds */
  69         u_int8_t        _pad;
  70         __be16          pf;             /* AF_xxx for PF_[UN]BIND */
  71 };
  72
  73 enum nfqnl_config_mode {
  74         NFQNL_COPY_NONE,
  75         NFQNL_COPY_META,
  76         NFQNL_COPY_PACKET,
  77 };
  78
  79 struct nfqnl_msg_config_params {
  80         __be32          copy_range;
  81         u_int8_t        copy_mode;      /* enum nfqnl_config_mode */
  82 } __attribute__ ((packed));
  83
  84
  85 enum nfqnl_attr_config {
  86         NFQA_CFG_UNSPEC,
  87         NFQA_CFG_CMD,                   /* nfqnl_msg_config_cmd */
  88         NFQA_CFG_PARAMS,                /* nfqnl_msg_config_params */
  89         NFQA_CFG_QUEUE_MAXLEN,          /* u_int32_t */
  90         __NFQA_CFG_MAX
  91 };
  92 #define NFQA_CFG_MAX (__NFQA_CFG_MAX-1)
  93
  94 #endif /* _NFNETLINK_QUEUE_H */