release/src-rt-6.x.4708/toolchains/hndtools-arm-linux-2.6.36-uclibc-4.5.3/arm-brcm-linux-uclibcgnueabi/sysroot/usr/include/linux/mroute.h

   1 #ifndef __LINUX_MROUTE_H
   2 #define __LINUX_MROUTE_H
   3
   4 #include <linux/sockios.h>
   5 #include <linux/types.h>
   6
   7 /*
   8  *      Based on the MROUTING 3.5 defines primarily to keep
   9  *      source compatibility with BSD.
  10  *
  11  *      See the mrouted code for the original history.
  12  *
  13  *      Protocol Independent Multicast (PIM) data structures included
  14  *      Carlos Picoto (cap@di.fc.ul.pt)
  15  *
  16  */
  17
  18 #define MRT_BASE        200
  19 #define MRT_INIT        (MRT_BASE)      /* Activate the kernel mroute code      */
  20 #define MRT_DONE        (MRT_BASE+1)    /* Shutdown the kernel mroute           */
  21 #define MRT_ADD_VIF     (MRT_BASE+2)    /* Add a virtual interface              */
  22 #define MRT_DEL_VIF     (MRT_BASE+3)    /* Delete a virtual interface           */
  23 #define MRT_ADD_MFC     (MRT_BASE+4)    /* Add a multicast forwarding entry     */
  24 #define MRT_DEL_MFC     (MRT_BASE+5)    /* Delete a multicast forwarding entry  */
  25 #define MRT_VERSION     (MRT_BASE+6)    /* Get the kernel multicast version     */
  26 #define MRT_ASSERT      (MRT_BASE+7)    /* Activate PIM assert mode             */
  27 #define MRT_PIM         (MRT_BASE+8)    /* enable PIM code                      */
  28 #define MRT_TABLE       (MRT_BASE+9)    /* Specify mroute table ID              */
  29
  30 #define SIOCGETVIFCNT   SIOCPROTOPRIVATE        /* IP protocol privates */
  31 #define SIOCGETSGCNT    (SIOCPROTOPRIVATE+1)
  32 #define SIOCGETRPF      (SIOCPROTOPRIVATE+2)
  33
  34 #define MAXVIFS         32
  35 typedef unsigned long vifbitmap_t;      /* User mode code depends on this lot */
  36 typedef unsigned short vifi_t;
  37 #define ALL_VIFS        ((vifi_t)(-1))
  38
  39 /*
  40  *      Same idea as select
  41  */
  42
  43 #define VIFM_SET(n,m)   ((m)|=(1<<(n)))
  44 #define VIFM_CLR(n,m)   ((m)&=~(1<<(n)))
  45 #define VIFM_ISSET(n,m) ((m)&(1<<(n)))
  46 #define VIFM_CLRALL(m)  ((m)=0)
  47 #define VIFM_COPY(mfrom,mto)    ((mto)=(mfrom))
  48 #define VIFM_SAME(m1,m2)        ((m1)==(m2))
  49
  50 /*
  51  *      Passed by mrouted for an MRT_ADD_VIF - again we use the
  52  *      mrouted 3.6 structures for compatibility
  53  */
  54
  55 struct vifctl {
  56         vifi_t  vifc_vifi;              /* Index of VIF */
  57         unsigned char vifc_flags;       /* VIFF_ flags */
  58         unsigned char vifc_threshold;   /* ttl limit */
  59         unsigned int vifc_rate_limit;   /* Rate limiter values (NI) */
  60         union {
  61                 struct in_addr vifc_lcl_addr;     /* Local interface address */
  62                 int            vifc_lcl_ifindex;  /* Local interface index   */
  63         };
  64         struct in_addr vifc_rmt_addr;   /* IPIP tunnel addr */
  65 };
  66
  67 #define VIFF_TUNNEL             0x1     /* IPIP tunnel */
  68 #define VIFF_SRCRT              0x2     /* NI */
  69 #define VIFF_REGISTER           0x4     /* register vif */
  70 #define VIFF_USE_IFINDEX        0x8     /* use vifc_lcl_ifindex instead of
  71                                            vifc_lcl_addr to find an interface */
  72
  73 /*
  74  *      Cache manipulation structures for mrouted and PIMd
  75  */
  76
  77 struct mfcctl {
  78         struct in_addr mfcc_origin;             /* Origin of mcast      */
  79         struct in_addr mfcc_mcastgrp;           /* Group in question    */
  80         vifi_t  mfcc_parent;                    /* Where it arrived     */
  81         unsigned char mfcc_ttls[MAXVIFS];       /* Where it is going    */
  82         unsigned int mfcc_pkt_cnt;              /* pkt count for src-grp */
  83         unsigned int mfcc_byte_cnt;
  84         unsigned int mfcc_wrong_if;
  85         int          mfcc_expire;
  86 };
  87
  88 /*
  89  *      Group count retrieval for mrouted
  90  */
  91
  92 struct sioc_sg_req {
  93         struct in_addr src;
  94         struct in_addr grp;
  95         unsigned long pktcnt;
  96         unsigned long bytecnt;
  97         unsigned long wrong_if;
  98 };
  99
 100 /*
 101  *      To get vif packet counts
 102  */
 103
 104 struct sioc_vif_req {
 105         vifi_t  vifi;           /* Which iface */
 106         unsigned long icount;   /* In packets */
 107         unsigned long ocount;   /* Out packets */
 108         unsigned long ibytes;   /* In bytes */
 109         unsigned long obytes;   /* Out bytes */
 110 };
 111
 112 /*
 113  *      This is the format the mroute daemon expects to see IGMP control
 114  *      data. Magically happens to be like an IP packet as per the original
 115  */
 116
 117 struct igmpmsg {
 118         __u32 unused1,unused2;
 119         unsigned char im_msgtype;               /* What is this */
 120         unsigned char im_mbz;                   /* Must be zero */
 121         unsigned char im_vif;                   /* Interface (this ought to be a vifi_t!) */
 122         unsigned char unused3;
 123         struct in_addr im_src,im_dst;
 124 };
 125
 126 /*
 127  *      That's all usermode folks
 128  */
 129
 130
 131
 132 #define MFC_ASSERT_THRESH (3*HZ)                /* Maximal freq. of asserts */
 133
 134 /*
 135  *      Pseudo messages used by mrouted
 136  */
 137
 138 #define IGMPMSG_NOCACHE         1               /* Kern cache fill request to mrouted */
 139 #define IGMPMSG_WRONGVIF        2               /* For PIM assert processing (unused) */
 140 #define IGMPMSG_WHOLEPKT        3               /* For PIM Register processing */
 141
 142
 143 #endif