include/linux/mroute.h

   1 #ifndef __LINUX_MROUTE_H
   2 #define __LINUX_MROUTE_H
   3
   4 #include <linux/in.h>
   5 #include <linux/pim.h>
   6 #include <net/sock.h>
   7 #include <uapi/linux/mroute.h>
   8
   9 #ifdef CONFIG_IP_MROUTE
  10 static inline int ip_mroute_opt(int opt)
  11 {
  12         return (opt >= MRT_BASE) && (opt <= MRT_MAX);
  13 }
  14 #else
  15 static inline int ip_mroute_opt(int opt)
  16 {
  17         return 0;
  18 }
  19 #endif
  20
  21 #ifdef CONFIG_IP_MROUTE
  22 extern int ip_mroute_setsockopt(struct sock *, int, char __user *, unsigned int);
  23 extern int ip_mroute_getsockopt(struct sock *, int, char __user *, int __user *);
  24 extern int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg);
  25 extern int ipmr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
  26 extern int ip_mr_init(void);
  27 #else
  28 static inline
  29 int ip_mroute_setsockopt(struct sock *sock,
  30                          int optname, char __user *optval, unsigned int optlen)
  31 {
  32         return -ENOPROTOOPT;
  33 }
  34
  35 static inline
  36 int ip_mroute_getsockopt(struct sock *sock,
  37                          int optname, char __user *optval, int __user *optlen)
  38 {
  39         return -ENOPROTOOPT;
  40 }
  41
  42 static inline
  43 int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg)
  44 {
  45         return -ENOIOCTLCMD;
  46 }
  47
  48 static inline int ip_mr_init(void)
  49 {
  50         return 0;
  51 }
  52 #endif
  53
  54 struct vif_device {
  55         struct net_device       *dev;                   /* Device we are using */
  56         unsigned long   bytes_in,bytes_out;
  57         unsigned long   pkt_in,pkt_out;         /* Statistics                   */
  58         unsigned long   rate_limit;             /* Traffic shaping (NI)         */
  59         unsigned char   threshold;              /* TTL threshold                */
  60         unsigned short  flags;                  /* Control flags                */
  61         __be32          local,remote;           /* Addresses(remote for tunnels)*/
  62         int             link;                   /* Physical interface index     */
  63 };
  64
  65 #define VIFF_STATIC 0x8000
  66
  67 struct mfc_cache {
  68         struct list_head list;
  69         __be32 mfc_mcastgrp;                    /* Group the entry belongs to   */
  70         __be32 mfc_origin;                      /* Source of packet             */
  71         vifi_t mfc_parent;                      /* Source interface             */
  72         int mfc_flags;                          /* Flags on line                */
  73
  74         union {
  75                 struct {
  76                         unsigned long expires;
  77                         struct sk_buff_head unresolved; /* Unresolved buffers           */
  78                 } unres;
  79                 struct {
  80                         unsigned long last_assert;
  81                         int minvif;
  82                         int maxvif;
  83                         unsigned long bytes;
  84                         unsigned long pkt;
  85                         unsigned long wrong_if;
  86                         unsigned char ttls[MAXVIFS];    /* TTL thresholds               */
  87                 } res;
  88         } mfc_un;
  89         struct rcu_head rcu;
  90 };
  91
  92 #define MFC_STATIC              1
  93 #define MFC_NOTIFY              2
  94
  95 #define MFC_LINES               64
  96
  97 #ifdef __BIG_ENDIAN
  98 #define MFC_HASH(a,b)   (((((__force u32)(__be32)a)>>24)^(((__force u32)(__be32)b)>>26))&(MFC_LINES-1))
  99 #else
 100 #define MFC_HASH(a,b)   ((((__force u32)(__be32)a)^(((__force u32)(__be32)b)>>2))&(MFC_LINES-1))
 101 #endif
 102
 103 struct rtmsg;
 104 extern int ipmr_get_route(struct net *net, struct sk_buff *skb,
 105                           __be32 saddr, __be32 daddr,
 106                           struct rtmsg *rtm, int nowait);
 107 #endif