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#ifndef __LINUX_MROUTE6_H

#define __LINUX_MROUTE6_H

#include <linux/types.h>

#include <linux/sockios.h>

/*

 *      Based on the MROUTING 3.5 defines primarily to keep

 *      source compatibility with BSD.

 *

 *      See the pim6sd code for the original history.

 *

 *      Protocol Independent Multicast (PIM) data structures included

 *      Carlos Picoto (cap@di.fc.ul.pt)

 *

 */

#define MRT6_BASE       200

#define MRT6_INIT       (MRT6_BASE)     /* Activate the kernel mroute code      */

#define MRT6_DONE       (MRT6_BASE+1)   /* Shutdown the kernel mroute           */

#define MRT6_ADD_MIF    (MRT6_BASE+2)   /* Add a virtual interface              */

#define MRT6_DEL_MIF    (MRT6_BASE+3)   /* Delete a virtual interface           */

#define MRT6_ADD_MFC    (MRT6_BASE+4)   /* Add a multicast forwarding entry     */

#define MRT6_DEL_MFC    (MRT6_BASE+5)   /* Delete a multicast forwarding entry  */

#define MRT6_VERSION    (MRT6_BASE+6)   /* Get the kernel multicast version     */

#define MRT6_ASSERT     (MRT6_BASE+7)   /* Activate PIM assert mode             */

#define MRT6_PIM        (MRT6_BASE+8)   /* enable PIM code                      */

#define MRT6_TABLE      (MRT6_BASE+9)   /* Specify mroute table ID              */

#define MRT6_ADD_MFC_PROXY      (MRT6_BASE+10)  /* Add a (*,*|G) mfc entry      */

#define MRT6_DEL_MFC_PROXY      (MRT6_BASE+11)  /* Del a (*,*|G) mfc entry      */

#define MRT6_MAX        (MRT6_BASE+11)

#define SIOCGETMIFCNT_IN6       SIOCPROTOPRIVATE        /* IP protocol privates */

#define SIOCGETSGCNT_IN6        (SIOCPROTOPRIVATE+1)

#define SIOCGETRPF      (SIOCPROTOPRIVATE+2)

#define MAXMIFS         32

typedef unsigned long mifbitmap_t;      /* User mode code depends on this lot */

typedef unsigned short mifi_t;

#define ALL_MIFS        ((mifi_t)(-1))

#ifndef IF_SETSIZE

#define IF_SETSIZE      256

#endif

typedef __u32           if_mask;

#define NIFBITS (sizeof(if_mask) * 8)        /* bits per mask */

#if !defined(DIV_ROUND_UP)

#define DIV_ROUND_UP(x,y)       (((x) + ((y) - 1)) / (y))

#endif

typedef struct if_set {

        if_mask ifs_bits[DIV_ROUND_UP(IF_SETSIZE, NIFBITS)];

} if_set;

#define IF_SET(n, p)    ((p)->ifs_bits[(n)/NIFBITS] |= (1 << ((n) % NIFBITS)))

#define IF_CLR(n, p)    ((p)->ifs_bits[(n)/NIFBITS] &= ~(1 << ((n) % NIFBITS)))

#define IF_ISSET(n, p)  ((p)->ifs_bits[(n)/NIFBITS] & (1 << ((n) % NIFBITS)))

#define IF_COPY(f, t)   bcopy(f, t, sizeof(*(f)))

#define IF_ZERO(p)      bzero(p, sizeof(*(p)))

/*

 *      Passed by mrouted for an MRT_ADD_MIF - again we use the

 *      mrouted 3.6 structures for compatibility

 */

struct mif6ctl {

        mifi_t  mif6c_mifi;             /* Index of MIF */

        unsigned char mif6c_flags;      /* MIFF_ flags */

        unsigned char vifc_threshold;   /* ttl limit */

        __u16    mif6c_pifi;            /* the index of the physical IF */

        unsigned int vifc_rate_limit;   /* Rate limiter values (NI) */

};

#define MIFF_REGISTER   0x1     /* register vif */

/*

 *      Cache manipulation structures for mrouted and PIMd

 */

struct mf6cctl {

        struct sockaddr_in6 mf6cc_origin;               /* Origin of mcast      */

        struct sockaddr_in6 mf6cc_mcastgrp;             /* Group in question    */

        mifi_t  mf6cc_parent;                   /* Where it arrived     */

        struct if_set mf6cc_ifset;              /* Where it is going */

};

/*

 *      Group count retrieval for pim6sd

 */

struct sioc_sg_req6 {

        struct sockaddr_in6 src;

        struct sockaddr_in6 grp;

        unsigned long pktcnt;

        unsigned long bytecnt;

        unsigned long wrong_if;

};

/*

 *      To get vif packet counts

 */

struct sioc_mif_req6 {

        mifi_t  mifi;           /* Which iface */

        unsigned long icount;   /* In packets */

        unsigned long ocount;   /* Out packets */

        unsigned long ibytes;   /* In bytes */

        unsigned long obytes;   /* Out bytes */

};

/*

 *      That's all usermode folks

 */

/*

 * Structure used to communicate from kernel to multicast router.

 * We'll overlay the structure onto an MLD header (not an IPv6 heder like igmpmsg{}

 * used for IPv4 implementation). This is because this structure will be passed via an

 * IPv6 raw socket, on which an application will only receiver the payload i.e the data after

 * the IPv6 header and all the extension headers. (See section 3 of RFC 3542)

 */

struct mrt6msg {

#define MRT6MSG_NOCACHE         1

#define MRT6MSG_WRONGMIF        2

#define MRT6MSG_WHOLEPKT        3               /* used for use level encap */

        __u8            im6_mbz;                /* must be zero            */

        __u8            im6_msgtype;            /* what type of message    */

        __u16           im6_mif;                /* mif rec'd on            */

        __u32           im6_pad;                /* padding for 64 bit arch */

        struct in6_addr im6_src, im6_dst;

};

#endif /* __LINUX_MROUTE6_H */