mroute.h

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#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_BASE + 10);
}
#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