pimd/pim_mroute.h

   1 /*
   2   PIM for Quagga
   3   Copyright (C) 2008  Everton da Silva Marques
   4
   5   This program is free software; you can redistribute it and/or modify
   6   it under the terms of the GNU General Public License as published by
   7   the Free Software Foundation; either version 2 of the License, or
   8   (at your option) any later version.
   9
  10   This program is distributed in the hope that it will be useful, but
  11   WITHOUT ANY WARRANTY; without even the implied warranty of
  12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13   General Public License for more details.
  14
  15   You should have received a copy of the GNU General Public License
  16   along with this program; see the file COPYING; if not, write to the
  17   Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
  18   MA 02110-1301 USA
  19
  20   $QuaggaId: $Format:%an, %ai, %h$ $
  21 */
  22
  23 #ifndef PIM_MROUTE_H
  24 #define PIM_MROUTE_H
  25
  26 /*
  27   For msghdr.msg_control in Solaris 10
  28 */
  29 #ifndef _XPG4_2
  30 #define _XPG4_2
  31 #endif
  32 #ifndef __EXTENSIONS__
  33 #define __EXTENSIONS__
  34 #endif
  35
  36 #include <netinet/in.h>
  37 #ifdef HAVE_NETINET_IP_MROUTE_H
  38 #include <netinet/ip_mroute.h>
  39 #endif
  40
  41 #define PIM_MROUTE_MIN_TTL (1)
  42
  43 #if defined(HAVE_LINUX_MROUTE_H)
  44 #include <linux/mroute.h>
  45 #else
  46 /*
  47   Below: from <linux/mroute.h>
  48 */
  49
  50 #ifndef MAXVIFS
  51 #define MAXVIFS (256)
  52 #endif
  53
  54 #ifndef SIOCGETVIFCNT
  55 #define SIOCGETVIFCNT   SIOCPROTOPRIVATE        /* IP protocol privates */
  56 #define SIOCGETSGCNT    (SIOCPROTOPRIVATE+1)
  57 #define SIOCGETRPF      (SIOCPROTOPRIVATE+2)
  58 #endif
  59
  60 #ifndef MRT_INIT
  61 #define MRT_BASE     200
  62 #define MRT_INIT     (MRT_BASE)      /* Activate the kernel mroute code      */
  63 #define MRT_DONE     (MRT_BASE+1)    /* Shutdown the kernel mroute           */
  64 #define MRT_ADD_VIF  (MRT_BASE+2)    /* Add a virtual interface              */
  65 #define MRT_DEL_VIF  (MRT_BASE+3)    /* Delete a virtual interface           */
  66 #define MRT_ADD_MFC  (MRT_BASE+4)    /* Add a multicast forwarding entry     */
  67 #define MRT_DEL_MFC  (MRT_BASE+5)    /* Delete a multicast forwarding entry  */
  68 #define MRT_VERSION  (MRT_BASE+6)    /* Get the kernel multicast version     */
  69 #define MRT_ASSERT   (MRT_BASE+7)    /* Activate PIM assert mode             */
  70 #define MRT_PIM      (MRT_BASE+8)    /* enable PIM code      */
  71 #endif
  72
  73 #ifndef HAVE_VIFI_T
  74 typedef unsigned short vifi_t;
  75 #endif
  76
  77 #ifndef HAVE_STRUCT_VIFCTL
  78 struct vifctl {
  79         vifi_t  vifc_vifi;              /* Index of VIF */
  80         unsigned char vifc_flags;       /* VIFF_ flags */
  81         unsigned char vifc_threshold;   /* ttl limit */
  82         unsigned int vifc_rate_limit;   /* Rate limiter values (NI) */
  83         struct in_addr vifc_lcl_addr;   /* Our address */
  84         struct in_addr vifc_rmt_addr;   /* IPIP tunnel addr */
  85 };
  86 #endif
  87
  88 #ifndef HAVE_STRUCT_MFCCTL
  89 struct mfcctl {
  90   struct in_addr mfcc_origin;             /* Origin of mcast      */
  91   struct in_addr mfcc_mcastgrp;           /* Group in question    */
  92   vifi_t         mfcc_parent;             /* Where it arrived     */
  93   unsigned char  mfcc_ttls[MAXVIFS];      /* Where it is going    */
  94   unsigned int   mfcc_pkt_cnt;            /* pkt count for src-grp */
  95   unsigned int   mfcc_byte_cnt;
  96   unsigned int   mfcc_wrong_if;
  97   int            mfcc_expire;
  98 };
  99 #endif
 100
 101 /*
 102  *      Group count retrieval for mrouted
 103  */
 104 /*
 105   struct sioc_sg_req sgreq;
 106   memset(&sgreq, 0, sizeof(sgreq));
 107   memcpy(&sgreq.src, &source_addr, sizeof(sgreq.src));
 108   memcpy(&sgreq.grp, &group_addr, sizeof(sgreq.grp));
 109   ioctl(mrouter_s4, SIOCGETSGCNT, &sgreq);
 110  */
 111 #ifndef HAVE_STRUCT_SIOC_SG_REQ
 112 struct sioc_sg_req {
 113   struct in_addr src;
 114   struct in_addr grp;
 115   unsigned long pktcnt;
 116   unsigned long bytecnt;
 117   unsigned long wrong_if;
 118 };
 119 #endif
 120
 121 /*
 122  *      To get vif packet counts
 123  */
 124 /*
 125   struct sioc_vif_req vreq;
 126   memset(&vreq, 0, sizeof(vreq));
 127   vreq.vifi = vif_index;
 128   ioctl(mrouter_s4, SIOCGETVIFCNT, &vreq);
 129  */
 130 #ifndef HAVE_STRUCT_SIOC_VIF_REQ
 131 struct sioc_vif_req {
 132   vifi_t  vifi;           /* Which iface */
 133   unsigned long icount;   /* In packets */
 134   unsigned long ocount;   /* Out packets */
 135   unsigned long ibytes;   /* In bytes */
 136   unsigned long obytes;   /* Out bytes */
 137 };
 138 #endif
 139
 140 /*
 141  *      Pseudo messages used by mrouted
 142  */
 143 #ifndef IGMPMSG_NOCACHE
 144 #define IGMPMSG_NOCACHE         1               /* Kern cache fill request to mrouted */
 145 #define IGMPMSG_WRONGVIF        2               /* For PIM assert processing (unused) */
 146 #define IGMPMSG_WHOLEPKT        3               /* For PIM Register processing */
 147 #endif
 148
 149 #ifndef HAVE_STRUCT_IGMPMSG
 150 struct igmpmsg
 151 {
 152   uint32_t unused1,unused2;
 153   unsigned char im_msgtype;               /* What is this */
 154   unsigned char im_mbz;                   /* Must be zero */
 155   unsigned char im_vif;                   /* Interface (this ought to be a vifi_t!) */
 156   unsigned char unused3;
 157   struct in_addr im_src,im_dst;
 158 };
 159 #endif
 160 #endif
 161
 162 /*
 163   Above: from <linux/mroute.h>
 164 */
 165
 166 int pim_mroute_socket_enable(void);
 167 int pim_mroute_socket_disable(void);
 168
 169 int pim_mroute_add_vif(struct interface *ifp, struct in_addr ifaddr, unsigned char flags);
 170 int pim_mroute_del_vif(int vif_index);
 171
 172 int pim_mroute_add(struct channel_oil *c_oil);
 173 int pim_mroute_del(struct channel_oil *c_oil);
 174
 175 int pim_mroute_msg(int fd, const char *buf, int buf_size);
 176
 177 void pim_mroute_update_counters (struct channel_oil *c_oil);
 178 #endif /* PIM_MROUTE_H */