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 #include <linux/in6.h>          /* For struct sockaddr_in6. */
   8
   9 /*
  10  *      Based on the MROUTING 3.5 defines primarily to keep
  11  *      source compatibility with BSD.
  12  *
  13  *      See the pim6sd code for the original history.
  14  *
  15  *      Protocol Independent Multicast (PIM) data structures included
  16  *      Carlos Picoto (cap@di.fc.ul.pt)
  17  *
  18  */
  19
  20 #define MRT6_BASE       200
  21 #define MRT6_INIT       (MRT6_BASE)     /* Activate the kernel mroute code      */
  22 #define MRT6_DONE       (MRT6_BASE+1)   /* Shutdown the kernel mroute           */
  23 #define MRT6_ADD_MIF    (MRT6_BASE+2)   /* Add a virtual interface              */
  24 #define MRT6_DEL_MIF    (MRT6_BASE+3)   /* Delete a virtual interface           */
  25 #define MRT6_ADD_MFC    (MRT6_BASE+4)   /* Add a multicast forwarding entry     */
  26 #define MRT6_DEL_MFC    (MRT6_BASE+5)   /* Delete a multicast forwarding entry  */
  27 #define MRT6_VERSION    (MRT6_BASE+6)   /* Get the kernel multicast version     */
  28 #define MRT6_ASSERT     (MRT6_BASE+7)   /* Activate PIM assert mode             */
  29 #define MRT6_PIM        (MRT6_BASE+8)   /* enable PIM code                      */
  30 #define MRT6_TABLE      (MRT6_BASE+9)   /* Specify mroute table ID              */
  31 #define MRT6_ADD_MFC_PROXY      (MRT6_BASE+10)  /* Add a (*,*|G) mfc entry      */
  32 #define MRT6_DEL_MFC_PROXY      (MRT6_BASE+11)  /* Del a (*,*|G) mfc entry      */
  33 #define MRT6_MAX        (MRT6_BASE+11)
  34
  35 #define SIOCGETMIFCNT_IN6       SIOCPROTOPRIVATE        /* IP protocol privates */
  36 #define SIOCGETSGCNT_IN6        (SIOCPROTOPRIVATE+1)
  37 #define SIOCGETRPF      (SIOCPROTOPRIVATE+2)
  38
  39 #define MAXMIFS         32
  40 typedef unsigned long mifbitmap_t;      /* User mode code depends on this lot */
  41 typedef unsigned short mifi_t;
  42 #define ALL_MIFS        ((mifi_t)(-1))
  43
  44 #ifndef IF_SETSIZE
  45 #define IF_SETSIZE      256
  46 #endif
  47
  48 typedef __u32           if_mask;
  49 #define NIFBITS (sizeof(if_mask) * 8)        /* bits per mask */
  50
  51 typedef struct if_set {
  52         if_mask ifs_bits[__KERNEL_DIV_ROUND_UP(IF_SETSIZE, NIFBITS)];
  53 } if_set;
  54
  55 #define IF_SET(n, p)    ((p)->ifs_bits[(n)/NIFBITS] |= (1 << ((n) % NIFBITS)))
  56 #define IF_CLR(n, p)    ((p)->ifs_bits[(n)/NIFBITS] &= ~(1 << ((n) % NIFBITS)))
  57 #define IF_ISSET(n, p)  ((p)->ifs_bits[(n)/NIFBITS] & (1 << ((n) % NIFBITS)))
  58 #define IF_COPY(f, t)   bcopy(f, t, sizeof(*(f)))
  59 #define IF_ZERO(p)      bzero(p, sizeof(*(p)))
  60
  61 /*
  62  *      Passed by mrouted for an MRT_ADD_MIF - again we use the
  63  *      mrouted 3.6 structures for compatibility
  64  */
  65
  66 struct mif6ctl {
  67         mifi_t  mif6c_mifi;             /* Index of MIF */
  68         unsigned char mif6c_flags;      /* MIFF_ flags */
  69         unsigned char vifc_threshold;   /* ttl limit */
  70         __u16    mif6c_pifi;            /* the index of the physical IF */
  71         unsigned int vifc_rate_limit;   /* Rate limiter values (NI) */
  72 };
  73
  74 #define MIFF_REGISTER   0x1     /* register vif */
  75
  76 /*
  77  *      Cache manipulation structures for mrouted and PIMd
  78  */
  79
  80 struct mf6cctl {
  81         struct sockaddr_in6 mf6cc_origin;               /* Origin of mcast      */
  82         struct sockaddr_in6 mf6cc_mcastgrp;             /* Group in question    */
  83         mifi_t  mf6cc_parent;                   /* Where it arrived     */
  84         struct if_set mf6cc_ifset;              /* Where it is going */
  85 };
  86
  87 /*
  88  *      Group count retrieval for pim6sd
  89  */
  90
  91 struct sioc_sg_req6 {
  92         struct sockaddr_in6 src;
  93         struct sockaddr_in6 grp;
  94         unsigned long pktcnt;
  95         unsigned long bytecnt;
  96         unsigned long wrong_if;
  97 };
  98
  99 /*
 100  *      To get vif packet counts
 101  */
 102
 103 struct sioc_mif_req6 {
 104         mifi_t  mifi;           /* Which iface */
 105         unsigned long icount;   /* In packets */
 106         unsigned long ocount;   /* Out packets */
 107         unsigned long ibytes;   /* In bytes */
 108         unsigned long obytes;   /* Out bytes */
 109 };
 110
 111 /*
 112  *      That's all usermode folks
 113  */
 114
 115
 116
 117 /*
 118  * Structure used to communicate from kernel to multicast router.
 119  * We'll overlay the structure onto an MLD header (not an IPv6 heder like igmpmsg{}
 120  * used for IPv4 implementation). This is because this structure will be passed via an
 121  * IPv6 raw socket, on which an application will only receiver the payload i.e the data after
 122  * the IPv6 header and all the extension headers. (See section 3 of RFC 3542)
 123  */
 124
 125 struct mrt6msg {
 126 #define MRT6MSG_NOCACHE         1
 127 #define MRT6MSG_WRONGMIF        2
 128 #define MRT6MSG_WHOLEPKT        3               /* used for use level encap */
 129         __u8            im6_mbz;                /* must be zero            */
 130         __u8            im6_msgtype;            /* what type of message    */
 131         __u16           im6_mif;                /* mif rec'd on            */
 132         __u32           im6_pad;                /* padding for 64 bit arch */
 133         struct in6_addr im6_src, im6_dst;
 134 };
 135
 136 /* ip6mr netlink cache report attributes */
 137 enum {
 138         IP6MRA_CREPORT_UNSPEC,
 139         IP6MRA_CREPORT_MSGTYPE,
 140         IP6MRA_CREPORT_MIF_ID,
 141         IP6MRA_CREPORT_SRC_ADDR,
 142         IP6MRA_CREPORT_DST_ADDR,
 143         IP6MRA_CREPORT_PKT,
 144         __IP6MRA_CREPORT_MAX
 145 };
 146 #define IP6MRA_CREPORT_MAX (__IP6MRA_CREPORT_MAX - 1)
 147
 148 #endif /* _UAPI__LINUX_MROUTE6_H */