Exemple #1
0
void
ripng_zebra_ipv6_delete (struct prefix_ipv6 *p, struct in6_addr *nexthop,
			 unsigned int ifindex)
{
  struct zapi_ipv6 api;

  if (zclient->redist[ZEBRA_ROUTE_RIPNG])
    {
      api.type = ZEBRA_ROUTE_RIPNG;
      api.flags = 0;
      api.message = 0;
      SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
      api.nexthop_num = 1;
      api.nexthop = &nexthop;
      SET_FLAG (api.message, ZAPI_MESSAGE_IFINDEX);
      api.ifindex_num = 1;
      api.ifindex = &ifindex;

      zapi_ipv6_route (ZEBRA_IPV6_ROUTE_DELETE, zclient, p, &api);
    }
}
Exemple #2
0
void
ripng_zebra_ipv6_add (struct prefix_ipv6 *p, struct in6_addr *nexthop,
		      unsigned int ifindex, u_char metric)
{
  struct zapi_ipv6 api;

  if (zclient->redist[ZEBRA_ROUTE_RIPNG])
    {
      api.type = ZEBRA_ROUTE_RIPNG;
      api.flags = 0;
      api.message = 0;
      api.safi = SAFI_UNICAST;
      SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
      api.nexthop_num = 1;
      api.nexthop = &nexthop;
      SET_FLAG (api.message, ZAPI_MESSAGE_IFINDEX);
      api.ifindex_num = 1;
      api.ifindex = &ifindex;
      SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
      api.metric = metric;
      
      zapi_ipv6_route (ZEBRA_IPV6_ROUTE_ADD, zclient, p, &api);
    }
}
Exemple #3
0
void
isis_zebra_route_del_ipv6 (struct prefix *prefix,
                           struct isis_route_info *route_info)
{
    struct zapi_ipv6 api;
    struct in6_addr **nexthop_list;
    unsigned int *ifindex_list;
    struct isis_nexthop6 *nexthop6;
    int i, size;
    struct listnode *node;
    struct prefix_ipv6 prefix6;

    if (CHECK_FLAG (route_info->flag, ISIS_ROUTE_FLAG_ZEBRA_SYNC))
        return;

    api.type = ZEBRA_ROUTE_ISIS;
    api.flags = 0;
    api.message = 0;
    SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
    SET_FLAG (api.message, ZAPI_MESSAGE_IFINDEX);
    api.nexthop_num = listcount (route_info->nexthops6);
    api.ifindex_num = listcount (route_info->nexthops6);

    /* allocate memory for nexthop_list */
    size = sizeof (struct isis_nexthop6 *) * listcount (route_info->nexthops6);
    nexthop_list = (struct in6_addr **) XMALLOC (MTYPE_ISIS_TMP, size);
    if (!nexthop_list)
    {
        zlog_err ("isis_zebra_route_del_ipv6: out of memory!");
        return;
    }

    /* allocate memory for ifindex_list */
    size = sizeof (unsigned int) * listcount (route_info->nexthops6);
    ifindex_list = (unsigned int *) XMALLOC (MTYPE_ISIS_TMP, size);
    if (!ifindex_list)
    {
        zlog_err ("isis_zebra_route_del_ipv6: out of memory!");
        XFREE (MTYPE_ISIS_TMP, nexthop_list);
        return;
    }

    /* for each nexthop */
    i = 0;
    for (node = listhead (route_info->nexthops6); node; nextnode (node))
    {
        nexthop6 = getdata (node);

        if (!IN6_IS_ADDR_LINKLOCAL (&nexthop6->ip6) &&
                !IN6_IS_ADDR_UNSPECIFIED (&nexthop6->ip6))
        {
            api.nexthop_num--;
            api.ifindex_num--;
            continue;
        }

        nexthop_list[i] = &nexthop6->ip6;
        ifindex_list[i] = nexthop6->ifindex;
        i++;
    }

    api.nexthop = nexthop_list;
    api.ifindex = ifindex_list;

    if (api.nexthop_num && api.ifindex_num)
    {
        prefix6.family = AF_INET6;
        prefix6.prefixlen = prefix->prefixlen;
        memcpy (&prefix6.prefix, &prefix->u.prefix6, sizeof (struct in6_addr));
        zapi_ipv6_route (ZEBRA_IPV6_ROUTE_DELETE, zclient, &prefix6, &api);
        UNSET_FLAG (route_info->flag, ISIS_ROUTE_FLAG_ZEBRA_SYNC);
    }

    XFREE (MTYPE_ISIS_TMP, nexthop_list);
    XFREE (MTYPE_ISIS_TMP, ifindex_list);
}
Exemple #4
0
void
bgp_zebra_withdraw (struct prefix *p, struct bgp_info *info, safi_t safi)
{
  int flags;
  struct peer *peer;

  if (zclient->sock < 0)
    return;

  if (! zclient->redist[ZEBRA_ROUTE_BGP])
    return;

  peer = info->peer;
  flags = 0;

  if (peer->sort == BGP_PEER_IBGP)
    {
      SET_FLAG (flags, ZEBRA_FLAG_INTERNAL);
      SET_FLAG (flags, ZEBRA_FLAG_IBGP);
    }

  if ((peer->sort == BGP_PEER_EBGP && peer->ttl != 1)
      || CHECK_FLAG (peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK))
    SET_FLAG (flags, ZEBRA_FLAG_INTERNAL);

  if (p->family == AF_INET)
    {
      struct zapi_ipv4 api;
      struct in_addr *nexthop;

      api.flags = flags;
      nexthop = &info->attr->nexthop;

      api.type = ZEBRA_ROUTE_BGP;
      api.message = 0;
      api.safi = safi;
      SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
      api.nexthop_num = 1;
      api.nexthop = &nexthop;
      api.ifindex_num = 0;
      SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
      api.metric = info->attr->med;

      if (BGP_DEBUG(zebra, ZEBRA))
	{
	  char buf[2][INET_ADDRSTRLEN];
	  zlog_debug("Zebra send: IPv4 route delete %s/%d nexthop %s metric %u",
		     inet_ntop(AF_INET, &p->u.prefix4, buf[0], sizeof(buf[0])),
		     p->prefixlen,
		     inet_ntop(AF_INET, nexthop, buf[1], sizeof(buf[1])),
		     api.metric);
	}

      zapi_ipv4_route (ZEBRA_IPV4_ROUTE_DELETE, zclient, 
                       (struct prefix_ipv4 *) p, &api);
    }
#ifdef HAVE_IPV6
  /* We have to think about a IPv6 link-local address curse. */
  if (p->family == AF_INET6)
    {
      struct zapi_ipv6 api;
      unsigned int ifindex;
      struct in6_addr *nexthop;
      
      assert (info->attr->extra);
      
      ifindex = 0;
      nexthop = NULL;

      /* Only global address nexthop exists. */
      if (info->attr->extra->mp_nexthop_len == 16)
	nexthop = &info->attr->extra->mp_nexthop_global;

      /* If both global and link-local address present. */
      if (info->attr->extra->mp_nexthop_len == 32)
	{
	  nexthop = &info->attr->extra->mp_nexthop_local;
	  if (info->peer->nexthop.ifp)
	    ifindex = info->peer->nexthop.ifp->ifindex;
	}

      if (nexthop == NULL)
	return;

      if (IN6_IS_ADDR_LINKLOCAL (nexthop) && ! ifindex)
	if (info->peer->ifname)
	  ifindex = if_nametoindex (info->peer->ifname);

      api.flags = flags;
      api.type = ZEBRA_ROUTE_BGP;
      api.message = 0;
      api.safi = safi;
      SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
      api.nexthop_num = 1;
      api.nexthop = &nexthop;
      SET_FLAG (api.message, ZAPI_MESSAGE_IFINDEX);
      api.ifindex_num = 1;
      api.ifindex = &ifindex;
      SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
      api.metric = info->attr->med;

      if (BGP_DEBUG(zebra, ZEBRA))
	{
	  char buf[2][INET6_ADDRSTRLEN];
	  zlog_debug("Zebra send: IPv6 route delete %s/%d nexthop %s metric %u",
		     inet_ntop(AF_INET6, &p->u.prefix6, buf[0], sizeof(buf[0])),
		     p->prefixlen,
		     inet_ntop(AF_INET6, nexthop, buf[1], sizeof(buf[1])),
		     api.metric);
	}

      zapi_ipv6_route (ZEBRA_IPV6_ROUTE_DELETE, zclient, 
                       (struct prefix_ipv6 *) p, &api);
    }
#endif /* HAVE_IPV6 */
}
Exemple #5
0
void
bgp_zebra_announce (struct prefix *p, struct bgp_info *info, struct bgp *bgp, safi_t safi)
{
  int flags;
  u_char distance;
  struct peer *peer;
  struct bgp_info *mpinfo;
  size_t oldsize, newsize;

  if (zclient->sock < 0)
    return;

  if (! zclient->redist[ZEBRA_ROUTE_BGP])
    return;

  flags = 0;
  peer = info->peer;

  if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED)
    {
      SET_FLAG (flags, ZEBRA_FLAG_IBGP);
      SET_FLAG (flags, ZEBRA_FLAG_INTERNAL);
    }

  if ((peer->sort == BGP_PEER_EBGP && peer->ttl != 1)
      || CHECK_FLAG (peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK))
    SET_FLAG (flags, ZEBRA_FLAG_INTERNAL);

  /* resize nexthop buffer size if necessary */
  if ((oldsize = stream_get_size (bgp_nexthop_buf)) <
      (sizeof (struct in_addr *) * (bgp_info_mpath_count (info) + 1)))
    {
      newsize = (sizeof (struct in_addr *) * (bgp_info_mpath_count (info) + 1));
      newsize = stream_resize (bgp_nexthop_buf, newsize);
      if (newsize == oldsize)
	{
	  zlog_err ("can't resize nexthop buffer");
	  return;
	}
    }

  stream_reset (bgp_nexthop_buf);

  if (p->family == AF_INET)
    {
      struct zapi_ipv4 api;
      struct in_addr *nexthop;

      api.flags = flags;
      nexthop = &info->attr->nexthop;
      stream_put (bgp_nexthop_buf, &nexthop, sizeof (struct in_addr *));
      for (mpinfo = bgp_info_mpath_first (info); mpinfo;
	   mpinfo = bgp_info_mpath_next (mpinfo))
	{
	  nexthop = &mpinfo->attr->nexthop;
	  stream_put (bgp_nexthop_buf, &nexthop, sizeof (struct in_addr *));
	}

      api.type = ZEBRA_ROUTE_BGP;
      api.message = 0;
      api.safi = safi;
      SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
      api.nexthop_num = 1 + bgp_info_mpath_count (info);
      api.nexthop = (struct in_addr **)STREAM_DATA (bgp_nexthop_buf);
      api.ifindex_num = 0;
      SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
      api.metric = info->attr->med;

      distance = bgp_distance_apply (p, info, bgp);

      if (distance)
	{
	  SET_FLAG (api.message, ZAPI_MESSAGE_DISTANCE);
	  api.distance = distance;
	}

      if (BGP_DEBUG(zebra, ZEBRA))
	{
	  int i;
	  char buf[2][INET_ADDRSTRLEN];
	  zlog_debug("Zebra send: IPv4 route add %s/%d nexthop %s metric %u"
		     " count %d",
		     inet_ntop(AF_INET, &p->u.prefix4, buf[0], sizeof(buf[0])),
		     p->prefixlen,
		     inet_ntop(AF_INET, api.nexthop[0], buf[1], sizeof(buf[1])),
		     api.metric, api.nexthop_num);
	  for (i = 1; i < api.nexthop_num; i++)
	    zlog_debug("Zebra send: IPv4 route add [nexthop %d] %s",
		       i, inet_ntop(AF_INET, api.nexthop[i], buf[1],
				    sizeof(buf[1])));
	}

      zapi_ipv4_route (ZEBRA_IPV4_ROUTE_ADD, zclient, 
                       (struct prefix_ipv4 *) p, &api);
    }
#ifdef HAVE_IPV6
  /* We have to think about a IPv6 link-local address curse. */
  if (p->family == AF_INET6)
    {
      unsigned int ifindex;
      struct in6_addr *nexthop;
      struct zapi_ipv6 api;

      ifindex = 0;
      nexthop = NULL;
      
      assert (info->attr->extra);
      
      /* Only global address nexthop exists. */
      if (info->attr->extra->mp_nexthop_len == 16)
	nexthop = &info->attr->extra->mp_nexthop_global;
      
      /* If both global and link-local address present. */
      if (info->attr->extra->mp_nexthop_len == 32)
	{
	  /* Workaround for Cisco's nexthop bug.  */
	  if (IN6_IS_ADDR_UNSPECIFIED (&info->attr->extra->mp_nexthop_global)
	      && peer->su_remote->sa.sa_family == AF_INET6)
	    nexthop = &peer->su_remote->sin6.sin6_addr;
	  else
	    nexthop = &info->attr->extra->mp_nexthop_local;

	  if (info->peer->nexthop.ifp)
	    ifindex = info->peer->nexthop.ifp->ifindex;
	}

      if (nexthop == NULL)
	return;

      if (IN6_IS_ADDR_LINKLOCAL (nexthop) && ! ifindex)
	{
	  if (info->peer->ifname)
	    ifindex = if_nametoindex (info->peer->ifname);
	  else if (info->peer->nexthop.ifp)
	    ifindex = info->peer->nexthop.ifp->ifindex;
	}

      /* Make Zebra API structure. */
      api.flags = flags;
      api.type = ZEBRA_ROUTE_BGP;
      api.message = 0;
      api.safi = safi;
      SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
      api.nexthop_num = 1;
      api.nexthop = &nexthop;
      SET_FLAG (api.message, ZAPI_MESSAGE_IFINDEX);
      api.ifindex_num = 1;
      api.ifindex = &ifindex;
      SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
      api.metric = info->attr->med;

      if (BGP_DEBUG(zebra, ZEBRA))
	{
	  char buf[2][INET6_ADDRSTRLEN];
	  zlog_debug("Zebra send: IPv6 route add %s/%d nexthop %s metric %u",
		     inet_ntop(AF_INET6, &p->u.prefix6, buf[0], sizeof(buf[0])),
		     p->prefixlen,
		     inet_ntop(AF_INET6, nexthop, buf[1], sizeof(buf[1])),
		     api.metric);
	}

      zapi_ipv6_route (ZEBRA_IPV6_ROUTE_ADD, zclient, 
                       (struct prefix_ipv6 *) p, &api);
    }
#endif /* HAVE_IPV6 */
}
Exemple #6
0
void
bgp_zebra_withdraw (struct prefix *p, struct bgp_info *info, safi_t safi)
{
  int flags;
  struct peer *peer;

  if (zclient->sock < 0)
    return;

  if (! vrf_bitmap_check (zclient->redist[ZEBRA_ROUTE_BGP], VRF_DEFAULT))
    return;

  peer = info->peer;
  flags = 0;

  if (peer->sort == BGP_PEER_IBGP)
    {
      SET_FLAG (flags, ZEBRA_FLAG_INTERNAL);
      SET_FLAG (flags, ZEBRA_FLAG_IBGP);
    }

  if ((peer->sort == BGP_PEER_EBGP && peer_ttl (peer) != 1)
      || CHECK_FLAG (peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK))
    SET_FLAG (flags, ZEBRA_FLAG_INTERNAL);

  if (p->family == AF_INET)
    {
      struct zapi_ipv4 api;

      api.vrf_id = VRF_DEFAULT;
      api.flags = flags;

      api.type = ZEBRA_ROUTE_BGP;
      api.message = 0;
      api.safi = safi;
      api.nexthop_num = 0;
      api.ifindex_num = 0;
      SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
      api.metric = info->attr->med;

      if ((info->attr->extra) && (info->attr->extra->tag != 0))
        {
          SET_FLAG(api.message, ZAPI_MESSAGE_TAG);
          api.tag = info->attr->extra->tag;
        }

      if (BGP_DEBUG(zebra, ZEBRA))
	{
	  char buf[2][INET_ADDRSTRLEN];
	  zlog_debug("Zebra send: IPv4 route delete %s/%d metric %u tag %d",
		     inet_ntop(AF_INET, &p->u.prefix4, buf[0], sizeof(buf[0])),
		     p->prefixlen,
		     api.metric,
		     api.tag);
	}

      zapi_ipv4_route (ZEBRA_IPV4_ROUTE_DELETE, zclient, 
                       (struct prefix_ipv4 *) p, &api);
    }

  /* We have to think about a IPv6 link-local address curse. */
  if (p->family == AF_INET6)
    {
      struct zapi_ipv6 api;
      
      api.vrf_id = VRF_DEFAULT;
      api.flags = flags;
      api.type = ZEBRA_ROUTE_BGP;
      api.message = 0;
      api.safi = safi;
      api.nexthop_num = 0;
      api.ifindex_num = 0;
      SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
      api.metric = info->attr->med;

      if ((info->attr->extra) && (info->attr->extra->tag != 0))
        {
          SET_FLAG(api.message, ZAPI_MESSAGE_TAG);
          api.tag = info->attr->extra->tag;
        }

      if (BGP_DEBUG(zebra, ZEBRA))
	{
	  char buf[2][INET6_ADDRSTRLEN];
	  zlog_debug("Zebra send: IPv6 route delete %s/%d metric %u tag %d",
		     inet_ntop(AF_INET6, &p->u.prefix6, buf[0], sizeof(buf[0])),
		     p->prefixlen,
		     api.metric,
		     api.tag);
	}

      zapi_ipv6_route (ZEBRA_IPV6_ROUTE_DELETE, zclient, 
                       (struct prefix_ipv6 *) p, &api);
    }
}
Exemple #7
0
/* Send ECMP routes to zebra. */
static void
ripng_zebra_ipv6_send (struct route_node *rp, u_char cmd)
{
  static struct in6_addr **nexthops = NULL;
  static unsigned int *ifindexes = NULL;
  static unsigned int nexthops_len = 0;

  struct list *list = (struct list *)rp->info;
  struct zapi_ipv6 api;
  struct listnode *listnode = NULL;
  struct ripng_info *rinfo = NULL;
  int count = 0;

  if (vrf_bitmap_check (zclient->redist[ZEBRA_ROUTE_RIPNG], VRF_DEFAULT))
    {
      api.vrf_id = VRF_DEFAULT;
      api.type = ZEBRA_ROUTE_RIPNG;
      api.flags = 0;
      api.message = 0;
      api.safi = SAFI_UNICAST;

      if (nexthops_len < listcount (list))
        {
          nexthops_len = listcount (list);
          nexthops = XREALLOC (MTYPE_TMP, nexthops,
                               nexthops_len * sizeof (struct in6_addr *));
          ifindexes = XREALLOC (MTYPE_TMP, ifindexes,
                                nexthops_len * sizeof (unsigned int));
        }

      SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
      SET_FLAG (api.message, ZAPI_MESSAGE_IFINDEX);
      for (ALL_LIST_ELEMENTS_RO (list, listnode, rinfo))
        {
          nexthops[count] = &rinfo->nexthop;
          ifindexes[count] = rinfo->ifindex;
          count++;
          if (cmd == ZEBRA_IPV6_ROUTE_ADD)
            SET_FLAG (rinfo->flags, RIPNG_RTF_FIB);
          else
            UNSET_FLAG (rinfo->flags, RIPNG_RTF_FIB);
        }

      api.nexthop = nexthops;
      api.nexthop_num = count;
      api.ifindex = ifindexes;
      api.ifindex_num = count;

      rinfo = listgetdata (listhead (list));

      SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
      api.metric = rinfo->metric;

      zapi_ipv6_route (cmd, zclient,
                       (struct prefix_ipv6 *)&rp->p, &api);

      if (IS_RIPNG_DEBUG_ZEBRA)
        {
          if (ripng->ecmp)
            zlog_debug ("%s: %s/%d nexthops %d",
                        (cmd == ZEBRA_IPV6_ROUTE_ADD) ? \
                            "Install into zebra" : "Delete from zebra",
                        inet6_ntoa (rp->p.u.prefix6), rp->p.prefixlen, count);
          else
            zlog_debug ("%s: %s/%d",
                        (cmd == ZEBRA_IPV6_ROUTE_ADD) ? \
                            "Install into zebra" : "Delete from zebra",
                        inet6_ntoa (rp->p.u.prefix6), rp->p.prefixlen);
        }
    }