LXR linux/include/uapi/linux/mroute6.h

   1#ifndef _UAPI__LINUX_MROUTE6_H
   2#define _UAPI__LINUX_MROUTE6_H
   3
   4#include <linux/kernel.h>
   5#include <linux/types.h>
   6#include <linux/sockios.h>
   7
   8/*
   9 *      Based on the MROUTING 3.5 defines primarily to keep
  10 *      source compatibility with BSD.
  11 *
  12 *      See the pim6sd code for the original history.
  13 *
  14 *      Protocol Independent Multicast (PIM) data structures included
  15 *      Carlos Picoto (cap@di.fc.ul.pt)
  16 *
  17 */
  18
  19#define MRT6_BASE       200
  20#define MRT6_INIT       (MRT6_BASE)     /* Activate the kernel mroute code      */
  21#define MRT6_DONE       (MRT6_BASE+1)   /* Shutdown the kernel mroute           */
  22#define MRT6_ADD_MIF    (MRT6_BASE+2)   /* Add a virtual interface              */
  23#define MRT6_DEL_MIF    (MRT6_BASE+3)   /* Delete a virtual interface           */
  24#define MRT6_ADD_MFC    (MRT6_BASE+4)   /* Add a multicast forwarding entry     */
  25#define MRT6_DEL_MFC    (MRT6_BASE+5)   /* Delete a multicast forwarding entry  */
  26#define MRT6_VERSION    (MRT6_BASE+6)   /* Get the kernel multicast version     */
  27#define MRT6_ASSERT     (MRT6_BASE+7)   /* Activate PIM assert mode             */
  28#define MRT6_PIM        (MRT6_BASE+8)   /* enable PIM code                      */
  29#define MRT6_TABLE      (MRT6_BASE+9)   /* Specify mroute table ID              */
  30#define MRT6_ADD_MFC_PROXY      (MRT6_BASE+10)  /* Add a (*,*|G) mfc entry      */
  31#define MRT6_DEL_MFC_PROXY      (MRT6_BASE+11)  /* Del a (*,*|G) mfc entry      */
  32#define MRT6_MAX        (MRT6_BASE+11)
  33
  34#define SIOCGETMIFCNT_IN6       SIOCPROTOPRIVATE        /* IP protocol privates */
  35#define SIOCGETSGCNT_IN6        (SIOCPROTOPRIVATE+1)
  36#define SIOCGETRPF      (SIOCPROTOPRIVATE+2)
  37
  38#define MAXMIFS         32
  39typedef unsigned long mifbitmap_t;      /* User mode code depends on this lot */
  40typedef unsigned short mifi_t;
  41#define ALL_MIFS        ((mifi_t)(-1))
  42
  43#ifndef IF_SETSIZE
  44#define IF_SETSIZE      256
  45#endif
  46
  47typedef __u32           if_mask;
  48#define NIFBITS (sizeof(if_mask) * 8)        /* bits per mask */
  49
  50typedef struct if_set {
  51        if_mask ifs_bits[__KERNEL_DIV_ROUND_UP(IF_SETSIZE, NIFBITS)];
  52} if_set;
  53
  54#define IF_SET(n, p)    ((p)->ifs_bits[(n)/NIFBITS] |= (1 << ((n) % NIFBITS)))
  55#define IF_CLR(n, p)    ((p)->ifs_bits[(n)/NIFBITS] &= ~(1 << ((n) % NIFBITS)))
  56#define IF_ISSET(n, p)  ((p)->ifs_bits[(n)/NIFBITS] & (1 << ((n) % NIFBITS)))
  57#define IF_COPY(f, t)   bcopy(f, t, sizeof(*(f)))
  58#define IF_ZERO(p)      bzero(p, sizeof(*(p)))
  59
  60/*
  61 *      Passed by mrouted for an MRT_ADD_MIF - again we use the
  62 *      mrouted 3.6 structures for compatibility
  63 */
  64
  65struct mif6ctl {
  66        mifi_t  mif6c_mifi;             /* Index of MIF */
  67        unsigned char mif6c_flags;      /* MIFF_ flags */
  68        unsigned char vifc_threshold;   /* ttl limit */
  69        __u16    mif6c_pifi;            /* the index of the physical IF */
  70        unsigned int vifc_rate_limit;   /* Rate limiter values (NI) */
  71};
  72
  73#define MIFF_REGISTER   0x1     /* register vif */
  74
  75/*
  76 *      Cache manipulation structures for mrouted and PIMd
  77 */
  78
  79struct mf6cctl {
  80        struct sockaddr_in6 mf6cc_origin;               /* Origin of mcast      */
  81        struct sockaddr_in6 mf6cc_mcastgrp;             /* Group in question    */
  82        mifi_t  mf6cc_parent;                   /* Where it arrived     */
  83        struct if_set mf6cc_ifset;              /* Where it is going */
  84};
  85
  86/*
  87 *      Group count retrieval for pim6sd
  88 */
  89
  90struct sioc_sg_req6 {
  91        struct sockaddr_in6 src;
  92        struct sockaddr_in6 grp;
  93        unsigned long pktcnt;
  94        unsigned long bytecnt;
  95        unsigned long wrong_if;
  96};
  97
  98/*
  99 *      To get vif packet counts
 100 */
 101
 102struct sioc_mif_req6 {
 103        mifi_t  mifi;           /* Which iface */
 104        unsigned long icount;   /* In packets */
 105        unsigned long ocount;   /* Out packets */
 106        unsigned long ibytes;   /* In bytes */
 107        unsigned long obytes;   /* Out bytes */
 108};
 109
 110/*
 111 *      That's all usermode folks
 112 */
 113
 114
 115
 116/*
 117 * Structure used to communicate from kernel to multicast router.
 118 * We'll overlay the structure onto an MLD header (not an IPv6 heder like igmpmsg{}
 119 * used for IPv4 implementation). This is because this structure will be passed via an
 120 * IPv6 raw socket, on which an application will only receiver the payload i.e the data after
 121 * the IPv6 header and all the extension headers. (See section 3 of RFC 3542)
 122 */
 123
 124struct mrt6msg {
 125#define MRT6MSG_NOCACHE         1
 126#define MRT6MSG_WRONGMIF        2
 127#define MRT6MSG_WHOLEPKT        3               /* used for use level encap */
 128        __u8            im6_mbz;                /* must be zero            */
 129        __u8            im6_msgtype;            /* what type of message    */
 130        __u16           im6_mif;                /* mif rec'd on            */
 131        __u32           im6_pad;                /* padding for 64 bit arch */
 132        struct in6_addr im6_src, im6_dst;
 133};
 134
 135#endif /* _UAPI__LINUX_MROUTE6_H */
 136