root/include/linux/mroute.h

INCLUDED FROM

DEFINITIONS

1. ip_mroute_opt
2. ip_mroute_opt
3. ip_mroute_setsockopt
4. ip_mroute_getsockopt
5. ipmr_ioctl
6. ip_mr_init

#ifndef __LINUX_MROUTE_H
#define __LINUX_MROUTE_H

#include <linux/in.h>
#include <linux/pim.h>
#include <net/sock.h>
#include <uapi/linux/mroute.h>

#ifdef CONFIG_IP_MROUTE
static inline int ip_mroute_opt(int opt)
{
        return (opt >= MRT_BASE) && (opt <= MRT_MAX);
}
#else
static inline int ip_mroute_opt(int opt)
{
        return 0;
}
#endif

#ifdef CONFIG_IP_MROUTE
extern int ip_mroute_setsockopt(struct sock *, int, char __user *, unsigned int);
extern int ip_mroute_getsockopt(struct sock *, int, char __user *, int __user *);
extern int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg);
extern int ipmr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
extern int ip_mr_init(void);
#else
static inline
int ip_mroute_setsockopt(struct sock *sock,
                         int optname, char __user *optval, unsigned int optlen)
{
        return -ENOPROTOOPT;
}

static inline
int ip_mroute_getsockopt(struct sock *sock,
                         int optname, char __user *optval, int __user *optlen)
{
        return -ENOPROTOOPT;
}

static inline
int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg)
{
        return -ENOIOCTLCMD;
}

static inline int ip_mr_init(void)
{
        return 0;
}
#endif

struct vif_device {
        struct net_device       *dev;                   /* Device we are using */
        unsigned long   bytes_in,bytes_out;
        unsigned long   pkt_in,pkt_out;         /* Statistics                   */
        unsigned long   rate_limit;             /* Traffic shaping (NI)         */
        unsigned char   threshold;              /* TTL threshold                */
        unsigned short  flags;                  /* Control flags                */
        __be32          local,remote;           /* Addresses(remote for tunnels)*/
        int             link;                   /* Physical interface index     */
};

#define VIFF_STATIC 0x8000

struct mfc_cache {
        struct list_head list;
        __be32 mfc_mcastgrp;                    /* Group the entry belongs to   */
        __be32 mfc_origin;                      /* Source of packet             */
        vifi_t mfc_parent;                      /* Source interface             */
        int mfc_flags;                          /* Flags on line                */

        union {
                struct {
                        unsigned long expires;
                        struct sk_buff_head unresolved; /* Unresolved buffers           */
                } unres;
                struct {
                        unsigned long last_assert;
                        int minvif;
                        int maxvif;
                        unsigned long bytes;
                        unsigned long pkt;
                        unsigned long wrong_if;
                        unsigned char ttls[MAXVIFS];    /* TTL thresholds               */
                } res;
        } mfc_un;
        struct rcu_head rcu;
};

#define MFC_STATIC              1
#define MFC_NOTIFY              2

#define MFC_LINES               64

#ifdef __BIG_ENDIAN
#define MFC_HASH(a,b)   (((((__force u32)(__be32)a)>>24)^(((__force u32)(__be32)b)>>26))&(MFC_LINES-1))
#else
#define MFC_HASH(a,b)   ((((__force u32)(__be32)a)^(((__force u32)(__be32)b)>>2))&(MFC_LINES-1))
#endif          

struct rtmsg;
extern int ipmr_get_route(struct net *net, struct sk_buff *skb,
                          __be32 saddr, __be32 daddr,
                          struct rtmsg *rtm, int nowait);
#endif