zebra/zebra_mroute.c

   1 /* zebra_mroute code
   2  * Copyright (C) 2016 Cumulus Networks, Inc.
   3  * Donald Sharp
   4  *
   5  * This file is part of Quagga
   6  *
   7  * Quagga is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License as published by the
   9  * Free Software Foundation; either version 2, or (at your option) any
  10  * later version.
  11  *
  12  * Quagga is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; see the file COPYING; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21
  22 #include <zebra.h>
  23
  24 #include "stream.h"
  25 #include "prefix.h"
  26 #include "vrf.h"
  27 #include "rib.h"
  28
  29 #include "zebra/zserv.h"
  30 #include "zebra/zebra_vrf.h"
  31 #include "zebra/zebra_mroute.h"
  32 #include "zebra/rt.h"
  33 #include "zebra/debug.h"
  34
  35 void zebra_ipmr_route_stats(ZAPI_HANDLER_ARGS)
  36 {
  37         struct mcast_route_data mroute;
  38         struct stream *s;
  39         int suc = -1;
  40
  41         memset(&mroute, 0, sizeof(mroute));
  42         STREAM_GETL(msg, mroute.family);
  43
  44         switch (mroute.family) {
  45         case AF_INET:
  46                 SET_IPADDR_V4(&mroute.src);
  47                 SET_IPADDR_V4(&mroute.grp);
  48                 STREAM_GET(&mroute.src.ipaddr_v4, msg,
  49                            sizeof(mroute.src.ipaddr_v4));
  50                 STREAM_GET(&mroute.grp.ipaddr_v4, msg,
  51                            sizeof(mroute.grp.ipaddr_v4));
  52                 break;
  53         case AF_INET6:
  54                 SET_IPADDR_V6(&mroute.src);
  55                 SET_IPADDR_V6(&mroute.grp);
  56                 STREAM_GET(&mroute.src.ipaddr_v6, msg,
  57                            sizeof(mroute.src.ipaddr_v6));
  58                 STREAM_GET(&mroute.grp.ipaddr_v6, msg,
  59                            sizeof(mroute.grp.ipaddr_v6));
  60                 break;
  61         default:
  62                 zlog_warn("%s: Invalid address family received while parsing",
  63                           __func__);
  64                 return;
  65         }
  66
  67         STREAM_GETL(msg, mroute.ifindex);
  68
  69         if (IS_ZEBRA_DEBUG_KERNEL)
  70                 zlog_debug("Asking for (%pIA,%pIA)[%s(%u)] mroute information",
  71                            &mroute.src, &mroute.grp, zvrf->vrf->name,
  72                            zvrf->vrf->vrf_id);
  73
  74         suc = kernel_get_ipmr_sg_stats(zvrf, &mroute);
  75
  76 stream_failure:
  77         s = stream_new(ZEBRA_MAX_PACKET_SIZ);
  78
  79         stream_reset(s);
  80
  81         zclient_create_header(s, ZEBRA_IPMR_ROUTE_STATS, zvrf_id(zvrf));
  82
  83         if (mroute.family == AF_INET) {
  84                 stream_write(s, &mroute.src.ipaddr_v4,
  85                              sizeof(mroute.src.ipaddr_v4));
  86                 stream_write(s, &mroute.grp.ipaddr_v4,
  87                              sizeof(mroute.grp.ipaddr_v4));
  88         } else {
  89                 stream_write(s, &mroute.src.ipaddr_v6,
  90                              sizeof(mroute.src.ipaddr_v6));
  91                 stream_write(s, &mroute.grp.ipaddr_v6,
  92                              sizeof(mroute.grp.ipaddr_v6));
  93         }
  94
  95         stream_put(s, &mroute.lastused, sizeof(mroute.lastused));
  96         stream_putl(s, (uint32_t)suc);
  97
  98         stream_putw_at(s, 0, stream_get_endp(s));
  99         zserv_send_message(client, s);
 100 }