mroute6.h

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#ifndef __LINUX_MROUTE6_H
#define __LINUX_MROUTE6_H


#include <linux/pim.h>
#include <linux/skbuff.h>   /* for struct sk_buff_head */
#include <net/net_namespace.h>
#include <uapi/linux/mroute6.h>

#ifdef CONFIG_IPV6_MROUTE
static inline int ip6_mroute_opt(int opt)
{
    return (opt >= MRT6_BASE) && (opt <= MRT6_BASE + 10);
}
#else
static inline int ip6_mroute_opt(int opt)
{
    return 0;
}
#endif

struct sock;

#ifdef CONFIG_IPV6_MROUTE
extern int ip6_mroute_setsockopt(struct sock *, int, char __user *, unsigned int);
extern int ip6_mroute_getsockopt(struct sock *, int, char __user *, int __user *);
extern int ip6_mr_input(struct sk_buff *skb);
extern int ip6mr_ioctl(struct sock *sk, int cmd, void __user *arg);
extern int ip6mr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
extern int ip6_mr_init(void);
extern void ip6_mr_cleanup(void);
#else
static inline
int ip6_mroute_setsockopt(struct sock *sock,
              int optname, char __user *optval, unsigned int optlen)
{
    return -ENOPROTOOPT;
}

static inline
int ip6_mroute_getsockopt(struct sock *sock,
              int optname, char __user *optval, int __user *optlen)
{
    return -ENOPROTOOPT;
}

static inline
int ip6mr_ioctl(struct sock *sk, int cmd, void __user *arg)
{
    return -ENOIOCTLCMD;
}

static inline int ip6_mr_init(void)
{
    return 0;
}

static inline void ip6_mr_cleanup(void)
{
    return;
}
#endif

struct mif_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        */
    int     link;           /* Physical interface index */
};

#define VIFF_STATIC 0x8000

struct mfc6_cache {
    struct list_head list;
    struct in6_addr mf6c_mcastgrp;          /* Group the entry belongs to   */
    struct in6_addr mf6c_origin;            /* Source of packet         */
    mifi_t mf6c_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[MAXMIFS];    /* TTL thresholds       */
        } res;
    } mfc_un;
};

#define MFC_STATIC      1
#define MFC_NOTIFY      2

#define MFC6_LINES      64

#define MFC6_HASH(a, g) (((__force u32)(a)->s6_addr32[0] ^ \
              (__force u32)(a)->s6_addr32[1] ^ \
              (__force u32)(a)->s6_addr32[2] ^ \
              (__force u32)(a)->s6_addr32[3] ^ \
              (__force u32)(g)->s6_addr32[0] ^ \
              (__force u32)(g)->s6_addr32[1] ^ \
              (__force u32)(g)->s6_addr32[2] ^ \
              (__force u32)(g)->s6_addr32[3]) % MFC6_LINES)

#define MFC_ASSERT_THRESH (3*HZ)        /* Maximal freq. of asserts */

struct rtmsg;
extern int ip6mr_get_route(struct net *net, struct sk_buff *skb,
               struct rtmsg *rtm, int nowait);

#ifdef CONFIG_IPV6_MROUTE
extern struct sock *mroute6_socket(struct net *net, struct sk_buff *skb);
extern int ip6mr_sk_done(struct sock *sk);
#else
static inline struct sock *mroute6_socket(struct net *net, struct sk_buff *skb)
{
    return NULL;
}
static inline int ip6mr_sk_done(struct sock *sk)
{
    return 0;
}
#endif
#endif