root/include/linux/mroute6.h

INCLUDED FROM

DEFINITIONS

1. ip6_mroute_opt
2. ip6_mroute_opt
3. ip6_mroute_setsockopt
4. ip6_mroute_getsockopt
5. ip6mr_ioctl
6. ip6_mr_init
7. ip6_mr_cleanup
8. mroute6_socket
9. ip6mr_sk_done

#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_MAX);
}
#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