release/src/router/iptables/include/libipq/ip_queue_64.h

   1 /* Redefine everything for a 64-bit kernel on 32-bit userspace */
   2
   3 /* Based on ip_queue.h by (C) 2000 James Morris, this code is GPL. */
   4 #ifndef _IP_QUEUE_H
   5 #define _IP_QUEUE_H
   6
   7 #include <net/if.h>
   8 #include <sys/types.h>
   9
  10 /* Messages sent from kernel */
  11 typedef struct ipq_packet_msg {
  12         u_int64_t packet_id;    /* ID of queued packet */
  13         u_int64_t mark;         /* Netfilter mark value */
  14         int64_t timestamp_sec;  /* Packet arrival time (seconds) */
  15         int64_t timestamp_usec; /* Packet arrvial time (+useconds) */
  16         unsigned int hook;              /* Netfilter hook we rode in on */
  17         char indev_name[IFNAMSIZ];      /* Name of incoming interface */
  18         char outdev_name[IFNAMSIZ];     /* Name of outgoing interface */
  19         unsigned short hw_protocol;     /* Hardware protocol (network order) */
  20         unsigned short hw_type;         /* Hardware type */
  21         unsigned char hw_addrlen;       /* Hardware address length */
  22         unsigned char hw_addr[8];       /* Hardware address */
  23         u_int64_t data_len;             /* Length of packet data */
  24         unsigned char payload[0];       /* Optional packet data */
  25 } ipq_packet_msg_t;
  26
  27 /* Messages sent from userspace */
  28 typedef struct ipq_mode_msg {
  29         unsigned char value;            /* Requested mode */
  30         u_int64_t range;                /* Optional range of packet requested */
  31 } ipq_mode_msg_t;
  32
  33 typedef struct ipq_verdict_msg {
  34         unsigned int value;             /* Verdict to hand to netfilter */
  35         u_int64_t id;           /* Packet ID for this verdict */
  36         u_int64_t data_len;             /* Length of replacement data */
  37         unsigned char payload[0];       /* Optional replacement packet */
  38 } ipq_verdict_msg_t;
  39
  40 typedef struct ipq_peer_msg {
  41         union {
  42                 ipq_verdict_msg_t verdict;
  43                 ipq_mode_msg_t mode;
  44         } msg;
  45 } ipq_peer_msg_t;
  46
  47 /* Packet delivery modes */
  48 enum {
  49         IPQ_COPY_NONE,          /* Initial mode, packets are dropped */
  50         IPQ_COPY_META,          /* Copy metadata */
  51         IPQ_COPY_PACKET         /* Copy metadata + packet (range) */
  52 };
  53 #define IPQ_COPY_MAX IPQ_COPY_PACKET
  54
  55 /* Types of messages */
  56 #define IPQM_BASE       0x10    /* standard netlink messages below this */
  57 #define IPQM_MODE       (IPQM_BASE + 1)         /* Mode request from peer */
  58 #define IPQM_VERDICT    (IPQM_BASE + 2)         /* Verdict from peer */
  59 #define IPQM_PACKET     (IPQM_BASE + 3)         /* Packet from kernel */
  60 #define IPQM_MAX        (IPQM_BASE + 4)
  61
  62 #endif /*_IP_QUEUE_H*/