[mirror_frr.git] / ospf6d / ospf6_zebra.c

/*
 * Copyright (C) 2003 Yasuhiro Ohara
 *
 * This file is part of GNU Zebra.
 *
 * GNU Zebra is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2, or (at your option) any
 * later version.
 *
 * GNU Zebra is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with GNU Zebra; see the file COPYING.  If not, write to the 
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 
 * Boston, MA 02111-1307, USA.  
 */

#include <zebra.h>

#include "log.h"
#include "vty.h"
#include "command.h"
#include "prefix.h"
#include "stream.h"
#include "zclient.h"
#include "memory.h"

#include "ospf6_proto.h"
#include "ospf6_top.h"
#include "ospf6_interface.h"
#include "ospf6_route.h"
#include "ospf6_lsa.h"
#include "ospf6_lsdb.h"
#include "ospf6_asbr.h"
#include "ospf6_zebra.h"
#include "ospf6d.h"

unsigned char conf_debug_ospf6_zebra = 0;

/* information about zebra. */
struct zclient *zclient = NULL;

struct in_addr router_id_zebra;

/* Router-id update message from zebra. */
int
ospf6_router_id_update_zebra (int command, struct zclient *zclient,
			      zebra_size_t length)
{
  struct prefix router_id;
  struct ospf6 *o = ospf6;

  zebra_router_id_update_read(zclient->ibuf,&router_id);
  router_id_zebra = router_id.u.prefix4;

  if (o->router_id  == 0)
    o->router_id = (u_int32_t) router_id_zebra.s_addr;

  return 0;
}

/* redistribute function */
void
ospf6_zebra_redistribute (int type)
{
  if (zclient->redist[type])
    return;
  zclient->redist[type] = 1;
  if (zclient->sock > 0)
    zebra_redistribute_send (ZEBRA_REDISTRIBUTE_ADD, zclient->sock, type);
}

void
ospf6_zebra_no_redistribute (int type)
{
  if (! zclient->redist[type])
    return;
  zclient->redist[type] = 0;
  if (zclient->sock > 0)
    zebra_redistribute_send (ZEBRA_REDISTRIBUTE_DELETE, zclient->sock, type);
}

/* Inteface addition message from zebra. */
int
ospf6_zebra_if_add (int command, struct zclient *zclient, zebra_size_t length)
{
  struct interface *ifp;

  ifp = zebra_interface_add_read (zclient->ibuf);
  if (IS_OSPF6_DEBUG_ZEBRA (RECV))
    zlog_info ("Zebra Interface add: %s index %d mtu %d",
               ifp->name, ifp->ifindex, ifp->mtu6);
  ospf6_interface_if_add (ifp);
  return 0;
}

int
ospf6_zebra_if_del (int command, struct zclient *zclient, zebra_size_t length)
{
#if 0
  struct interface *ifp;

  ifp = zebra_interface_delete_read (zclient->ibuf);
  if (IS_OSPF6_DEBUG_ZEBRA (RECV))
    zlog_info ("Zebra Interface delete: %s index %d mtu %d",
               ifp->name, ifp->ifindex, ifp->mtu6);

  ospf6_interface_if_del (ifp);
#endif /*0*/
  return 0;
}

int
ospf6_zebra_if_state_update (int command, struct zclient *zclient,
                             zebra_size_t length)
{
  struct interface *ifp;

  ifp = zebra_interface_state_read (zclient->ibuf);
  if (IS_OSPF6_DEBUG_ZEBRA (RECV))
    zlog_info ("Zebra Interface state change: "
                 "%s index %d flags %ld metric %d mtu %d",
               ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu6);

  ospf6_interface_state_update (ifp);
  return 0;
}

int
ospf6_zebra_if_address_update_add (int command, struct zclient *zclient,
                                   zebra_size_t length)
{
  struct connected *c;
  char buf[128];

  c = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_ADD, zclient->ibuf);
  if (c == NULL)
    return 0;

  if (IS_OSPF6_DEBUG_ZEBRA (RECV))
    zlog_info ("Zebra Interface address add: %s %5s %s/%d",
               c->ifp->name, prefix_family_str (c->address),
               inet_ntop (c->address->family, &c->address->u.prefix,
                          buf, sizeof (buf)), c->address->prefixlen);

  if (c->address->family == AF_INET6)
    ospf6_interface_connected_route_update (c->ifp);

  return 0;
}

int
ospf6_zebra_if_address_update_delete (int command, struct zclient *zclient,
                               zebra_size_t length)
{
  struct connected *c;
  char buf[128];

  c = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_DELETE, zclient->ibuf);
  if (c == NULL)
    return 0;

  if (IS_OSPF6_DEBUG_ZEBRA (RECV))
    zlog_info ("Zebra Interface address delete: %s %5s %s/%d",
               c->ifp->name, prefix_family_str (c->address),
               inet_ntop (c->address->family, &c->address->u.prefix,
                          buf, sizeof (buf)), c->address->prefixlen);

  if (c->address->family == AF_INET6)
    ospf6_interface_connected_route_update (c->ifp);

  return 0;
}


\f
const char *zebra_route_name[ZEBRA_ROUTE_MAX] =
  { "System", "Kernel", "Connect", "Static", "RIP", "RIPng", "OSPF",
    "OSPF6", "ISIS", "BGP" };

const char *zebra_route_abname[ZEBRA_ROUTE_MAX] =
  { "X", "K", "C", "S", "r", "R", "o", "O", "I", "B" };

int
ospf6_zebra_read_ipv6 (int command, struct zclient *zclient,
                       zebra_size_t length)
{
  struct stream *s;
  struct zapi_ipv6 api;
  unsigned long ifindex;
  struct prefix_ipv6 p;
  struct in6_addr *nexthop;

  s = zclient->ibuf;
  ifindex = 0;
  nexthop = NULL;
  memset (&api, 0, sizeof (api));

  /* Type, flags, message. */
  api.type = stream_getc (s);
  api.flags = stream_getc (s);
  api.message = stream_getc (s);

  /* IPv6 prefix. */
  memset (&p, 0, sizeof (struct prefix_ipv6));
  p.family = AF_INET6;
  p.prefixlen = stream_getc (s);
  stream_get (&p.prefix, s, PSIZE (p.prefixlen));

  /* Nexthop, ifindex, distance, metric. */
  if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP))
    {
      api.nexthop_num = stream_getc (s);
      nexthop = (struct in6_addr *)
        malloc (api.nexthop_num * sizeof (struct in6_addr));
      stream_get (nexthop, s, api.nexthop_num * sizeof (struct in6_addr));
    }
  if (CHECK_FLAG (api.message, ZAPI_MESSAGE_IFINDEX))
    {
      api.ifindex_num = stream_getc (s);
      ifindex = stream_getl (s);
    }
  if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE))
    api.distance = stream_getc (s);
  else
    api.distance = 0;
  if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC))
    api.metric = stream_getl (s);
  else
    api.metric = 0;

  if (IS_OSPF6_DEBUG_ZEBRA (RECV))
    {
      char prefixstr[128], nexthopstr[128];
      prefix2str ((struct prefix *)&p, prefixstr, sizeof (prefixstr));
      if (nexthop)
        inet_ntop (AF_INET6, nexthop, nexthopstr, sizeof (nexthopstr));
      else
        snprintf (nexthopstr, sizeof (nexthopstr), "::");

      zlog_info ("Zebra Receive route %s: %s %s nexthop %s ifindex %ld",
                 (command == ZEBRA_IPV6_ROUTE_ADD ? "add" : "delete"),
                 zebra_route_name[api.type], prefixstr, nexthopstr, ifindex);
    }
 
  if (command == ZEBRA_IPV6_ROUTE_ADD)
    ospf6_asbr_redistribute_add (api.type, ifindex, (struct prefix *) &p,
                                 api.nexthop_num, nexthop);
  else
    ospf6_asbr_redistribute_remove (api.type, ifindex, (struct prefix *) &p);

  if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP))
    free (nexthop);

  return 0;
}


\f
DEFUN (show_zebra,
       show_zebra_cmd,
       "show zebra",
       SHOW_STR
       "Zebra information\n")
{
  int i;
  if (zclient == NULL)
    {
      vty_out (vty, "Not connected to zebra%s", VNL);
      return CMD_SUCCESS;
    }

  vty_out (vty, "Zebra Infomation%s", VNL);
  vty_out (vty, "  enable: %d fail: %d%s",
           zclient->enable, zclient->fail, VNL);
  vty_out (vty, "  redistribute default: %d%s", zclient->redist_default,
           VNL);
  vty_out (vty, "  redistribute:");
  for (i = 0; i < ZEBRA_ROUTE_MAX; i++)
    {
      if (zclient->redist[i])
        vty_out (vty, " %s", zebra_route_name[i]);
    }
  vty_out (vty, "%s", VNL);
  return CMD_SUCCESS;
}

DEFUN (router_zebra,
       router_zebra_cmd,
       "router zebra",
       "Enable a routing process\n"
       "Make connection to zebra daemon\n")
{
  vty->node = ZEBRA_NODE;
  zclient->enable = 1;
  zclient_start (zclient);
  return CMD_SUCCESS;
}

DEFUN (no_router_zebra,
       no_router_zebra_cmd,
       "no router zebra",
       NO_STR
       "Configure routing process\n"
       "Disable connection to zebra daemon\n")
{
  zclient->enable = 0;
  zclient_stop (zclient);
  return CMD_SUCCESS;
}

/* Zebra configuration write function. */
int
config_write_ospf6_zebra (struct vty *vty)
{
  if (! zclient->enable)
    {
      vty_out (vty, "no router zebra%s", VNL);
      vty_out (vty, "!%s", VNL);
    }
  else if (! zclient->redist[ZEBRA_ROUTE_OSPF6])
    {
      vty_out (vty, "router zebra%s", VNL);
      vty_out (vty, " no redistribute ospf6%s", VNL);
      vty_out (vty, "!%s", VNL);
    }
  return 0;
}

/* Zebra node structure. */
struct cmd_node zebra_node =
{
  ZEBRA_NODE,
  "%s(config-zebra)# ",
};

#define ADD    0
#define REM    1
static void
ospf6_zebra_route_update (int type, struct ospf6_route *request)
{
  struct zapi_ipv6 api;
  char buf[64], ifname[IFNAMSIZ];
  int nhcount;
  struct in6_addr **nexthops;
  unsigned int *ifindexes;
  int i, ret = 0;
  struct prefix_ipv6 *dest;

  if (IS_OSPF6_DEBUG_ZEBRA (SEND))
    {
      prefix2str (&request->prefix, buf, sizeof (buf));
      zlog_info ("Send %s route: %s",
                 (type == REM ? "remove" : "add"), buf);
    }

  if (zclient->sock < 0)
    {
      if (IS_OSPF6_DEBUG_ZEBRA (SEND))
        zlog_info ("  Not connected to Zebra");
      return;
    }

  if (request->path.origin.adv_router == ospf6->router_id &&
      (request->path.type == OSPF6_PATH_TYPE_EXTERNAL1 ||
       request->path.type == OSPF6_PATH_TYPE_EXTERNAL2))
    {
      if (IS_OSPF6_DEBUG_ZEBRA (SEND))
        zlog_info ("  Ignore self-originated external route");
      return;
    }

  /* If removing is the best path and if there's another path,
     treat this request as add the secondary path */
  if (type == REM && ospf6_route_is_best (request) &&
      request->next && ospf6_route_is_same (request, request->next))
    {
      if (IS_OSPF6_DEBUG_ZEBRA (SEND))
        zlog_info ("  Best-path removal resulted Sencondary addition");
      type = ADD;
      request = request->next;
    }

  /* Only the best path will be sent to zebra. */
  if (! ospf6_route_is_best (request))
    {
      /* this is not preferred best route, ignore */
      if (IS_OSPF6_DEBUG_ZEBRA (SEND))
        zlog_info ("  Ignore non-best route");
      return;
    }

  nhcount = 0;
  for (i = 0; i < OSPF6_MULTI_PATH_LIMIT; i++)
    if (ospf6_nexthop_is_set (&request->nexthop[i]))
      nhcount++;

  if (nhcount == 0)
    {
      if (IS_OSPF6_DEBUG_ZEBRA (SEND))
        zlog_info ("  No nexthop, ignore");
      return;
    }

  /* allocate memory for nexthop_list */
  nexthops = XCALLOC (MTYPE_OSPF6_OTHER,
                      nhcount * sizeof (struct in6_addr *));
  if (nexthops == NULL)
    {
      zlog_warn ("Can't send route to zebra: malloc failed");
      return;
    }

  /* allocate memory for ifindex_list */
  ifindexes = XCALLOC (MTYPE_OSPF6_OTHER,
                       nhcount * sizeof (unsigned int));
  if (ifindexes == NULL)
    {
      zlog_warn ("Can't send route to zebra: malloc failed");
      XFREE (MTYPE_OSPF6_OTHER, nexthops);
      return;
    }

  for (i = 0; i < nhcount; i++)
    {
      if (IS_OSPF6_DEBUG_ZEBRA (SEND))
        {
          inet_ntop (AF_INET6, &request->nexthop[i].address,
                     buf, sizeof (buf));
          if_indextoname (request->nexthop[i].ifindex, ifname);
          zlog_info ("  nexthop: %s%%%s(%d)", buf, ifname,
                     request->nexthop[i].ifindex);
        }
      nexthops[i] = &request->nexthop[i].address;
      ifindexes[i] = request->nexthop[i].ifindex;
    }

  api.type = ZEBRA_ROUTE_OSPF6;
  api.flags = 0;
  api.message = 0;
  SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
  api.nexthop_num = nhcount;
  api.nexthop = nexthops;
  SET_FLAG (api.message, ZAPI_MESSAGE_IFINDEX);
  api.ifindex_num = nhcount;
  api.ifindex = ifindexes;
  SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
  api.metric = (request->path.metric_type == 2 ?
                request->path.cost_e2 : request->path.cost);

  dest = (struct prefix_ipv6 *) &request->prefix;
  if (type == REM)
    ret = zapi_ipv6_route (ZEBRA_IPV6_ROUTE_DELETE, zclient, dest, &api);
  else
    ret = zapi_ipv6_route (ZEBRA_IPV6_ROUTE_ADD, zclient, dest, &api);

  if (ret < 0)
    zlog_err ("zapi_ipv6_route() %s failed: %s",
              (type == REM ? "delete" : "add"), safe_strerror (errno));

  XFREE (MTYPE_OSPF6_OTHER, nexthops);
  XFREE (MTYPE_OSPF6_OTHER, ifindexes);

  return;
}

void
ospf6_zebra_route_update_add (struct ospf6_route *request)
{
  if (! zclient->redist[ZEBRA_ROUTE_OSPF6])
    {
      ospf6->route_table->hook_add = NULL;
      ospf6->route_table->hook_remove = NULL;
      return;
    }
  ospf6_zebra_route_update (ADD, request);
}

void
ospf6_zebra_route_update_remove (struct ospf6_route *request)
{
  if (! zclient->redist[ZEBRA_ROUTE_OSPF6])
    {
      ospf6->route_table->hook_add = NULL;
      ospf6->route_table->hook_remove = NULL;
      return;
    }
  ospf6_zebra_route_update (REM, request);
}

DEFUN (redistribute_ospf6,
       redistribute_ospf6_cmd,
       "redistribute ospf6",
       "Redistribute control\n"
       "OSPF6 route\n")
{
  struct ospf6_route *route;

  if (zclient->redist[ZEBRA_ROUTE_OSPF6])
    return CMD_SUCCESS;

  zclient->redist[ZEBRA_ROUTE_OSPF6] = 1;

  if (ospf6 == NULL)
    return CMD_SUCCESS;

  /* send ospf6 route to zebra route table */
  for (route = ospf6_route_head (ospf6->route_table); route;
       route = ospf6_route_next (route))
    ospf6_zebra_route_update_add (route);

  ospf6->route_table->hook_add = ospf6_zebra_route_update_add;
  ospf6->route_table->hook_remove = ospf6_zebra_route_update_remove;

  return CMD_SUCCESS;
}

DEFUN (no_redistribute_ospf6,
       no_redistribute_ospf6_cmd,
       "no redistribute ospf6",
       NO_STR
       "Redistribute control\n"
       "OSPF6 route\n")
{
  struct ospf6_route *route;

  if (! zclient->redist[ZEBRA_ROUTE_OSPF6])
    return CMD_SUCCESS;

  zclient->redist[ZEBRA_ROUTE_OSPF6] = 0;

  if (ospf6 == NULL)
    return CMD_SUCCESS;

  ospf6->route_table->hook_add = NULL;
  ospf6->route_table->hook_remove = NULL;

  /* withdraw ospf6 route from zebra route table */
  for (route = ospf6_route_head (ospf6->route_table); route;
       route = ospf6_route_next (route))
    ospf6_zebra_route_update_remove (route);

  return CMD_SUCCESS;
}

void
ospf6_zebra_init ()
{
  /* Allocate zebra structure. */
  zclient = zclient_new ();
  zclient_init (zclient, ZEBRA_ROUTE_OSPF6);
  zclient->router_id_update = ospf6_router_id_update_zebra;
  zclient->interface_add = ospf6_zebra_if_add;
  zclient->interface_delete = ospf6_zebra_if_del;
  zclient->interface_up = ospf6_zebra_if_state_update;
  zclient->interface_down = ospf6_zebra_if_state_update;
  zclient->interface_address_add = ospf6_zebra_if_address_update_add;
  zclient->interface_address_delete = ospf6_zebra_if_address_update_delete;
  zclient->ipv4_route_add = NULL;
  zclient->ipv4_route_delete = NULL;
  zclient->ipv6_route_add = ospf6_zebra_read_ipv6;
  zclient->ipv6_route_delete = ospf6_zebra_read_ipv6;

  /* redistribute connected route by default */
  /* ospf6_zebra_redistribute (ZEBRA_ROUTE_CONNECT); */

  /* Install zebra node. */
  install_node (&zebra_node, config_write_ospf6_zebra);

  /* Install command element for zebra node. */
  install_element (VIEW_NODE, &show_zebra_cmd);
  install_element (ENABLE_NODE, &show_zebra_cmd);
  install_element (CONFIG_NODE, &router_zebra_cmd);
  install_element (CONFIG_NODE, &no_router_zebra_cmd);

  install_default (ZEBRA_NODE);
  install_element (ZEBRA_NODE, &redistribute_ospf6_cmd);
  install_element (ZEBRA_NODE, &no_redistribute_ospf6_cmd);

  return;
}

/* Debug */
\f
DEFUN (debug_ospf6_zebra_sendrecv,
       debug_ospf6_zebra_sendrecv_cmd,
       "debug ospf6 zebra (send|recv)",
       DEBUG_STR
       OSPF6_STR
       "Debug connection between zebra\n"
       "Debug Sending zebra\n"
       "Debug Receiving zebra\n"
      )
{
  unsigned char level = 0;

  if (argc)
    {
      if (! strncmp (argv[0], "s", 1))
        level = OSPF6_DEBUG_ZEBRA_SEND;
      else if (! strncmp (argv[0], "r", 1))
        level = OSPF6_DEBUG_ZEBRA_RECV;
    }
  else
    level = OSPF6_DEBUG_ZEBRA_SEND | OSPF6_DEBUG_ZEBRA_RECV;

  OSPF6_DEBUG_ZEBRA_ON (level);
  return CMD_SUCCESS;
}

ALIAS (debug_ospf6_zebra_sendrecv,
       debug_ospf6_zebra_cmd,
       "debug ospf6 zebra",
       DEBUG_STR
       OSPF6_STR
       "Debug connection between zebra\n"
      );


DEFUN (no_debug_ospf6_zebra_sendrecv,
       no_debug_ospf6_zebra_sendrecv_cmd,
       "no debug ospf6 zebra (send|recv)",
       NO_STR
       DEBUG_STR
       OSPF6_STR
       "Debug connection between zebra\n"
       "Debug Sending zebra\n"
       "Debug Receiving zebra\n"
      )
{
  unsigned char level = 0;

  if (argc)
    {
      if (! strncmp (argv[0], "s", 1))
        level = OSPF6_DEBUG_ZEBRA_SEND;
      else if (! strncmp (argv[0], "r", 1))
        level = OSPF6_DEBUG_ZEBRA_RECV;
    }
  else
    level = OSPF6_DEBUG_ZEBRA_SEND | OSPF6_DEBUG_ZEBRA_RECV;

  OSPF6_DEBUG_ZEBRA_OFF (level);
  return CMD_SUCCESS;
}

ALIAS (no_debug_ospf6_zebra_sendrecv,
       no_debug_ospf6_zebra_cmd,
       "no debug ospf6 zebra",
       NO_STR
       DEBUG_STR
       OSPF6_STR
       "Debug connection between zebra\n"
      );

int
config_write_ospf6_debug_zebra (struct vty *vty)
{
  if (IS_OSPF6_DEBUG_ZEBRA (SEND) && IS_OSPF6_DEBUG_ZEBRA (RECV))
    vty_out (vty, "debug ospf6 zebra%s", VNL);
  else
    {
      if (IS_OSPF6_DEBUG_ZEBRA (SEND))
        vty_out (vty, "debug ospf6 zebra send%s", VNL);
      if (IS_OSPF6_DEBUG_ZEBRA (RECV))
        vty_out (vty, "debug ospf6 zebra recv%s", VNL);
    }
  return 0;
}

void
install_element_ospf6_debug_zebra ()
{
  install_element (ENABLE_NODE, &debug_ospf6_zebra_cmd);
  install_element (ENABLE_NODE, &no_debug_ospf6_zebra_cmd);
  install_element (ENABLE_NODE, &debug_ospf6_zebra_sendrecv_cmd);
  install_element (ENABLE_NODE, &no_debug_ospf6_zebra_sendrecv_cmd);
  install_element (CONFIG_NODE, &debug_ospf6_zebra_cmd);
  install_element (CONFIG_NODE, &no_debug_ospf6_zebra_cmd);
  install_element (CONFIG_NODE, &debug_ospf6_zebra_sendrecv_cmd);
  install_element (CONFIG_NODE, &no_debug_ospf6_zebra_sendrecv_cmd);
}
Commit	Line	Data
718e3744	1	/*
508e53e2	2	* Copyright (C) 2003 Yasuhiro Ohara
718e3744	3	*
	4	* This file is part of GNU Zebra.
	5	*
	6	* GNU Zebra is free software; you can redistribute it and/or modify it
	7	* under the terms of the GNU General Public License as published by the
	8	* Free Software Foundation; either version 2, or (at your option) any
	9	* later version.
	10	*
	11	* GNU Zebra is distributed in the hope that it will be useful, but
	12	* WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	* General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with GNU Zebra; see the file COPYING. If not, write to the
	18	* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
	19	* Boston, MA 02111-1307, USA.
	20	*/
	21
508e53e2	22	#include <zebra.h>
	23
	24	#include "log.h"
	25	#include "vty.h"
	26	#include "command.h"
	27	#include "prefix.h"
	28	#include "stream.h"
	29	#include "zclient.h"
	30	#include "memory.h"
718e3744	31
508e53e2	32	#include "ospf6_proto.h"
508e53e2	33	#include "ospf6_top.h"
718e3744	34	#include "ospf6_interface.h"
508e53e2	35	#include "ospf6_route.h"
508e53e2	36	#include "ospf6_lsa.h"
049207c3	37	#include "ospf6_lsdb.h"
718e3744	38	#include "ospf6_asbr.h"
508e53e2	39	#include "ospf6_zebra.h"
049207c3	40	#include "ospf6d.h"
718e3744	41
508e53e2	42	unsigned char conf_debug_ospf6_zebra = 0;
718e3744	43
	44	/* information about zebra. */
	45	struct zclient *zclient = NULL;
	46
18a6dce6	47	struct in_addr router_id_zebra;
	48
	49	/* Router-id update message from zebra. */
	50	int
	51	ospf6_router_id_update_zebra (int command, struct zclient *zclient,
	52	zebra_size_t length)
	53	{
	54	struct prefix router_id;
	55	struct ospf6 *o = ospf6;
	56
	57	zebra_router_id_update_read(zclient->ibuf,&router_id);
	58	router_id_zebra = router_id.u.prefix4;
	59
	60	if (o->router_id == 0)
	61	o->router_id = (u_int32_t) router_id_zebra.s_addr;
	62
	63	return 0;
	64	}
	65
718e3744	66	/* redistribute function */
	67	void
	68	ospf6_zebra_redistribute (int type)
	69	{
718e3744	70	if (zclient->redist[type])
718e3744	71	return;
718e3744	72	zclient->redist[type] = 1;
718e3744	73	if (zclient->sock > 0)
718e3744	74	zebra_redistribute_send (ZEBRA_REDISTRIBUTE_ADD, zclient->sock, type);
718e3744	75	}
	76
	77	void
	78	ospf6_zebra_no_redistribute (int type)
	79	{
508e53e2	80	if (! zclient->redist[type])
718e3744	81	return;
718e3744	82	zclient->redist[type] = 0;
718e3744	83	if (zclient->sock > 0)
718e3744	84	zebra_redistribute_send (ZEBRA_REDISTRIBUTE_DELETE, zclient->sock, type);
718e3744	85	}
718e3744	86
718e3744	87	/* Inteface addition message from zebra. */
	88	int
	89	ospf6_zebra_if_add (int command, struct zclient *zclient, zebra_size_t length)
	90	{
	91	struct interface *ifp;
	92
	93	ifp = zebra_interface_add_read (zclient->ibuf);
508e53e2	94	if (IS_OSPF6_DEBUG_ZEBRA (RECV))
508e53e2	95	zlog_info ("Zebra Interface add: %s index %d mtu %d",
1203e1c0	96	ifp->name, ifp->ifindex, ifp->mtu6);
718e3744	97	ospf6_interface_if_add (ifp);
718e3744	98	return 0;
	99	}
	100
	101	int
	102	ospf6_zebra_if_del (int command, struct zclient *zclient, zebra_size_t length)
	103	{
	104	#if 0
508e53e2	105	struct interface *ifp;
718e3744	106
718e3744	107	ifp = zebra_interface_delete_read (zclient->ibuf);
508e53e2	108	if (IS_OSPF6_DEBUG_ZEBRA (RECV))
508e53e2	109	zlog_info ("Zebra Interface delete: %s index %d mtu %d",
1203e1c0	110	ifp->name, ifp->ifindex, ifp->mtu6);
718e3744	111
718e3744	112	ospf6_interface_if_del (ifp);
508e53e2	113	#endif /0/
718e3744	114	return 0;
	115	}
	116
	117	int
	118	ospf6_zebra_if_state_update (int command, struct zclient *zclient,
	119	zebra_size_t length)
	120	{
	121	struct interface *ifp;
	122
	123	ifp = zebra_interface_state_read (zclient->ibuf);
508e53e2	124	if (IS_OSPF6_DEBUG_ZEBRA (RECV))
	125	zlog_info ("Zebra Interface state change: "
	126	"%s index %d flags %ld metric %d mtu %d",
1203e1c0	127	ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu6);
718e3744	128
	129	ospf6_interface_state_update (ifp);
	130	return 0;
	131	}
	132
	133	int
	134	ospf6_zebra_if_address_update_add (int command, struct zclient *zclient,
508e53e2	135	zebra_size_t length)
718e3744	136	{
	137	struct connected *c;
	138	char buf[128];
	139
0a589359	140	c = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_ADD, zclient->ibuf);
718e3744	141	if (c == NULL)
	142	return 0;
	143
508e53e2	144	if (IS_OSPF6_DEBUG_ZEBRA (RECV))
508e53e2	145	zlog_info ("Zebra Interface address add: %s %5s %s/%d",
718e3744	146	c->ifp->name, prefix_family_str (c->address),
	147	inet_ntop (c->address->family, &c->address->u.prefix,
	148	buf, sizeof (buf)), c->address->prefixlen);
	149
	150	if (c->address->family == AF_INET6)
508e53e2	151	ospf6_interface_connected_route_update (c->ifp);
718e3744	152
	153	return 0;
	154	}
	155
	156	int
	157	ospf6_zebra_if_address_update_delete (int command, struct zclient *zclient,
	158	zebra_size_t length)
	159	{
	160	struct connected *c;
	161	char buf[128];
	162
0a589359	163	c = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_DELETE, zclient->ibuf);
718e3744	164	if (c == NULL)
	165	return 0;
	166
508e53e2	167	if (IS_OSPF6_DEBUG_ZEBRA (RECV))
508e53e2	168	zlog_info ("Zebra Interface address delete: %s %5s %s/%d",
718e3744	169	c->ifp->name, prefix_family_str (c->address),
	170	inet_ntop (c->address->family, &c->address->u.prefix,
	171	buf, sizeof (buf)), c->address->prefixlen);
	172
	173	if (c->address->family == AF_INET6)
508e53e2	174	ospf6_interface_connected_route_update (c->ifp);
718e3744	175
	176	return 0;
	177	}
	178
	179
	180	\f
	181	const char *zebra_route_name[ZEBRA_ROUTE_MAX] =
508e53e2	182	{ "System", "Kernel", "Connect", "Static", "RIP", "RIPng", "OSPF",
f3f27f60	183	"OSPF6", "ISIS", "BGP" };
718e3744	184
718e3744	185	const char *zebra_route_abname[ZEBRA_ROUTE_MAX] =
f3f27f60	186	{ "X", "K", "C", "S", "r", "R", "o", "O", "I", "B" };
718e3744	187
	188	int
	189	ospf6_zebra_read_ipv6 (int command, struct zclient *zclient,
	190	zebra_size_t length)
	191	{
	192	struct stream *s;
	193	struct zapi_ipv6 api;
	194	unsigned long ifindex;
	195	struct prefix_ipv6 p;
	196	struct in6_addr *nexthop;
718e3744	197
	198	s = zclient->ibuf;
	199	ifindex = 0;
	200	nexthop = NULL;
	201	memset (&api, 0, sizeof (api));
	202
	203	/* Type, flags, message. */
	204	api.type = stream_getc (s);
	205	api.flags = stream_getc (s);
	206	api.message = stream_getc (s);
	207
	208	/* IPv6 prefix. */
	209	memset (&p, 0, sizeof (struct prefix_ipv6));
	210	p.family = AF_INET6;
	211	p.prefixlen = stream_getc (s);
	212	stream_get (&p.prefix, s, PSIZE (p.prefixlen));
	213
	214	/* Nexthop, ifindex, distance, metric. */
	215	if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP))
	216	{
	217	api.nexthop_num = stream_getc (s);
	218	nexthop = (struct in6_addr *)
	219	malloc (api.nexthop_num * sizeof (struct in6_addr));
	220	stream_get (nexthop, s, api.nexthop_num * sizeof (struct in6_addr));
	221	}
	222	if (CHECK_FLAG (api.message, ZAPI_MESSAGE_IFINDEX))
	223	{
	224	api.ifindex_num = stream_getc (s);
	225	ifindex = stream_getl (s);
	226	}
	227	if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE))
	228	api.distance = stream_getc (s);
	229	else
	230	api.distance = 0;
	231	if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC))
	232	api.metric = stream_getl (s);
	233	else
	234	api.metric = 0;
	235
508e53e2	236	if (IS_OSPF6_DEBUG_ZEBRA (RECV))
718e3744	237	{
508e53e2	238	char prefixstr[128], nexthopstr[128];
718e3744	239	prefix2str ((struct prefix *)&p, prefixstr, sizeof (prefixstr));
508e53e2	240	if (nexthop)
508e53e2	241	inet_ntop (AF_INET6, nexthop, nexthopstr, sizeof (nexthopstr));
718e3744	242	else
508e53e2	243	snprintf (nexthopstr, sizeof (nexthopstr), "::");
	244
	245	zlog_info ("Zebra Receive route %s: %s %s nexthop %s ifindex %ld",
	246	(command == ZEBRA_IPV6_ROUTE_ADD ? "add" : "delete"),
	247	zebra_route_name[api.type], prefixstr, nexthopstr, ifindex);
718e3744	248	}
	249
	250	if (command == ZEBRA_IPV6_ROUTE_ADD)
508e53e2	251	ospf6_asbr_redistribute_add (api.type, ifindex, (struct prefix *) &p,
508e53e2	252	api.nexthop_num, nexthop);
718e3744	253	else
508e53e2	254	ospf6_asbr_redistribute_remove (api.type, ifindex, (struct prefix *) &p);
718e3744	255
	256	if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP))
	257	free (nexthop);
	258
	259	return 0;
	260	}
	261
508e53e2	262
508e53e2	263
718e3744	264	\f
	265	DEFUN (show_zebra,
	266	show_zebra_cmd,
	267	"show zebra",
	268	SHOW_STR
	269	"Zebra information\n")
	270	{
	271	int i;
508e53e2	272	if (zclient == NULL)
508e53e2	273	{
049207c3	274	vty_out (vty, "Not connected to zebra%s", VNL);
508e53e2	275	return CMD_SUCCESS;
508e53e2	276	}
718e3744	277
049207c3	278	vty_out (vty, "Zebra Infomation%s", VNL);
508e53e2	279	vty_out (vty, " enable: %d fail: %d%s",
049207c3	280	zclient->enable, zclient->fail, VNL);
718e3744	281	vty_out (vty, " redistribute default: %d%s", zclient->redist_default,
049207c3	282	VNL);
508e53e2	283	vty_out (vty, " redistribute:");
718e3744	284	for (i = 0; i < ZEBRA_ROUTE_MAX; i++)
508e53e2	285	{
	286	if (zclient->redist[i])
	287	vty_out (vty, " %s", zebra_route_name[i]);
	288	}
049207c3	289	vty_out (vty, "%s", VNL);
718e3744	290	return CMD_SUCCESS;
	291	}
	292
	293	DEFUN (router_zebra,
	294	router_zebra_cmd,
	295	"router zebra",
	296	"Enable a routing process\n"
	297	"Make connection to zebra daemon\n")
	298	{
718e3744	299	vty->node = ZEBRA_NODE;
	300	zclient->enable = 1;
	301	zclient_start (zclient);
	302	return CMD_SUCCESS;
	303	}
	304
	305	DEFUN (no_router_zebra,
	306	no_router_zebra_cmd,
	307	"no router zebra",
	308	NO_STR
	309	"Configure routing process\n"
	310	"Disable connection to zebra daemon\n")
	311	{
718e3744	312	zclient->enable = 0;
	313	zclient_stop (zclient);
	314	return CMD_SUCCESS;
	315	}
	316
	317	/* Zebra configuration write function. */
	318	int
508e53e2	319	config_write_ospf6_zebra (struct vty *vty)
718e3744	320	{
	321	if (! zclient->enable)
	322	{
049207c3	323	vty_out (vty, "no router zebra%s", VNL);
049207c3	324	vty_out (vty, "!%s", VNL);
718e3744	325	}
	326	else if (! zclient->redist[ZEBRA_ROUTE_OSPF6])
	327	{
049207c3	328	vty_out (vty, "router zebra%s", VNL);
	329	vty_out (vty, " no redistribute ospf6%s", VNL);
	330	vty_out (vty, "!%s", VNL);
718e3744	331	}
	332	return 0;
	333	}
	334
	335	/* Zebra node structure. */
	336	struct cmd_node zebra_node =
	337	{
	338	ZEBRA_NODE,
	339	"%s(config-zebra)# ",
	340	};
	341
	342	#define ADD 0
508e53e2	343	#define REM 1
718e3744	344	static void
508e53e2	345	ospf6_zebra_route_update (int type, struct ospf6_route *request)
718e3744	346	{
718e3744	347	struct zapi_ipv6 api;
508e53e2	348	char buf[64], ifname[IFNAMSIZ];
508e53e2	349	int nhcount;
718e3744	350	struct in6_addr **nexthops;
718e3744	351	unsigned int *ifindexes;
718e3744	352	int i, ret = 0;
508e53e2	353	struct prefix_ipv6 *dest;
718e3744	354
508e53e2	355	if (IS_OSPF6_DEBUG_ZEBRA (SEND))
718e3744	356	{
508e53e2	357	prefix2str (&request->prefix, buf, sizeof (buf));
	358	zlog_info ("Send %s route: %s",
	359	(type == REM ? "remove" : "add"), buf);
718e3744	360	}
	361
	362	if (zclient->sock < 0)
	363	{
508e53e2	364	if (IS_OSPF6_DEBUG_ZEBRA (SEND))
508e53e2	365	zlog_info (" Not connected to Zebra");
718e3744	366	return;
	367	}
	368
	369	if (request->path.origin.adv_router == ospf6->router_id &&
	370	(request->path.type == OSPF6_PATH_TYPE_EXTERNAL1 \|\|
	371	request->path.type == OSPF6_PATH_TYPE_EXTERNAL2))
	372	{
508e53e2	373	if (IS_OSPF6_DEBUG_ZEBRA (SEND))
508e53e2	374	zlog_info (" Ignore self-originated external route");
718e3744	375	return;
	376	}
	377
508e53e2	378	/* If removing is the best path and if there's another path,
	379	treat this request as add the secondary path */
	380	if (type == REM && ospf6_route_is_best (request) &&
	381	request->next && ospf6_route_is_same (request, request->next))
718e3744	382	{
508e53e2	383	if (IS_OSPF6_DEBUG_ZEBRA (SEND))
	384	zlog_info (" Best-path removal resulted Sencondary addition");
	385	type = ADD;
	386	request = request->next;
718e3744	387	}
718e3744	388
508e53e2	389	/* Only the best path will be sent to zebra. */
508e53e2	390	if (! ospf6_route_is_best (request))
718e3744	391	{
508e53e2	392	/* this is not preferred best route, ignore */
	393	if (IS_OSPF6_DEBUG_ZEBRA (SEND))
	394	zlog_info (" Ignore non-best route");
	395	return;
718e3744	396	}
718e3744	397
508e53e2	398	nhcount = 0;
	399	for (i = 0; i < OSPF6_MULTI_PATH_LIMIT; i++)
	400	if (ospf6_nexthop_is_set (&request->nexthop[i]))
	401	nhcount++;
718e3744	402
508e53e2	403	if (nhcount == 0)
718e3744	404	{
508e53e2	405	if (IS_OSPF6_DEBUG_ZEBRA (SEND))
508e53e2	406	zlog_info (" No nexthop, ignore");
718e3744	407	return;
	408	}
	409
	410	/* allocate memory for nexthop_list */
	411	nexthops = XCALLOC (MTYPE_OSPF6_OTHER,
508e53e2	412	nhcount * sizeof (struct in6_addr *));
508e53e2	413	if (nexthops == NULL)
718e3744	414	{
508e53e2	415	zlog_warn ("Can't send route to zebra: malloc failed");
718e3744	416	return;
	417	}
	418
	419	/* allocate memory for ifindex_list */
	420	ifindexes = XCALLOC (MTYPE_OSPF6_OTHER,
508e53e2	421	nhcount * sizeof (unsigned int));
508e53e2	422	if (ifindexes == NULL)
718e3744	423	{
508e53e2	424	zlog_warn ("Can't send route to zebra: malloc failed");
718e3744	425	XFREE (MTYPE_OSPF6_OTHER, nexthops);
	426	return;
	427	}
	428
508e53e2	429	for (i = 0; i < nhcount; i++)
718e3744	430	{
508e53e2	431	if (IS_OSPF6_DEBUG_ZEBRA (SEND))
718e3744	432	{
508e53e2	433	inet_ntop (AF_INET6, &request->nexthop[i].address,
	434	buf, sizeof (buf));
	435	if_indextoname (request->nexthop[i].ifindex, ifname);
	436	zlog_info (" nexthop: %s%%%s(%d)", buf, ifname,
	437	request->nexthop[i].ifindex);
718e3744	438	}
508e53e2	439	nexthops[i] = &request->nexthop[i].address;
508e53e2	440	ifindexes[i] = request->nexthop[i].ifindex;
718e3744	441	}
	442
	443	api.type = ZEBRA_ROUTE_OSPF6;
	444	api.flags = 0;
	445	api.message = 0;
	446	SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
508e53e2	447	api.nexthop_num = nhcount;
718e3744	448	api.nexthop = nexthops;
508e53e2	449	SET_FLAG (api.message, ZAPI_MESSAGE_IFINDEX);
508e53e2	450	api.ifindex_num = nhcount;
718e3744	451	api.ifindex = ifindexes;
508e53e2	452	SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
	453	api.metric = (request->path.metric_type == 2 ?
	454	request->path.cost_e2 : request->path.cost);
718e3744	455
508e53e2	456	dest = (struct prefix_ipv6 *) &request->prefix;
	457	if (type == REM)
	458	ret = zapi_ipv6_route (ZEBRA_IPV6_ROUTE_DELETE, zclient, dest, &api);
718e3744	459	else
508e53e2	460	ret = zapi_ipv6_route (ZEBRA_IPV6_ROUTE_ADD, zclient, dest, &api);
718e3744	461
718e3744	462	if (ret < 0)
508e53e2	463	zlog_err ("zapi_ipv6_route() %s failed: %s",
6099b3b5	464	(type == REM ? "delete" : "add"), safe_strerror (errno));
718e3744	465
718e3744	466	XFREE (MTYPE_OSPF6_OTHER, nexthops);
	467	XFREE (MTYPE_OSPF6_OTHER, ifindexes);
	468
	469	return;
	470	}
	471
	472	void
508e53e2	473	ospf6_zebra_route_update_add (struct ospf6_route *request)
718e3744	474	{
508e53e2	475	if (! zclient->redist[ZEBRA_ROUTE_OSPF6])
718e3744	476	{
508e53e2	477	ospf6->route_table->hook_add = NULL;
	478	ospf6->route_table->hook_remove = NULL;
	479	return;
718e3744	480	}
508e53e2	481	ospf6_zebra_route_update (ADD, request);
718e3744	482	}
718e3744	483
508e53e2	484	void
508e53e2	485	ospf6_zebra_route_update_remove (struct ospf6_route *request)
718e3744	486	{
508e53e2	487	if (! zclient->redist[ZEBRA_ROUTE_OSPF6])
718e3744	488	{
508e53e2	489	ospf6->route_table->hook_add = NULL;
	490	ospf6->route_table->hook_remove = NULL;
	491	return;
718e3744	492	}
508e53e2	493	ospf6_zebra_route_update (REM, request);
718e3744	494	}
718e3744	495
718e3744	496	DEFUN (redistribute_ospf6,
	497	redistribute_ospf6_cmd,
	498	"redistribute ospf6",
	499	"Redistribute control\n"
	500	"OSPF6 route\n")
	501	{
508e53e2	502	struct ospf6_route *route;
	503
	504	if (zclient->redist[ZEBRA_ROUTE_OSPF6])
	505	return CMD_SUCCESS;
718e3744	506
	507	zclient->redist[ZEBRA_ROUTE_OSPF6] = 1;
	508
508e53e2	509	if (ospf6 == NULL)
	510	return CMD_SUCCESS;
	511
	512	/* send ospf6 route to zebra route table */
	513	for (route = ospf6_route_head (ospf6->route_table); route;
	514	route = ospf6_route_next (route))
	515	ospf6_zebra_route_update_add (route);
	516
	517	ospf6->route_table->hook_add = ospf6_zebra_route_update_add;
	518	ospf6->route_table->hook_remove = ospf6_zebra_route_update_remove;
718e3744	519
	520	return CMD_SUCCESS;
	521	}
	522
	523	DEFUN (no_redistribute_ospf6,
	524	no_redistribute_ospf6_cmd,
	525	"no redistribute ospf6",
	526	NO_STR
	527	"Redistribute control\n"
	528	"OSPF6 route\n")
	529	{
508e53e2	530	struct ospf6_route *route;
	531
	532	if (! zclient->redist[ZEBRA_ROUTE_OSPF6])
	533	return CMD_SUCCESS;
718e3744	534
	535	zclient->redist[ZEBRA_ROUTE_OSPF6] = 0;
	536
508e53e2	537	if (ospf6 == NULL)
718e3744	538	return CMD_SUCCESS;
718e3744	539
508e53e2	540	ospf6->route_table->hook_add = NULL;
508e53e2	541	ospf6->route_table->hook_remove = NULL;
718e3744	542
508e53e2	543	/* withdraw ospf6 route from zebra route table */
	544	for (route = ospf6_route_head (ospf6->route_table); route;
	545	route = ospf6_route_next (route))
	546	ospf6_zebra_route_update_remove (route);
718e3744	547
	548	return CMD_SUCCESS;
	549	}
	550
	551	void
	552	ospf6_zebra_init ()
	553	{
	554	/* Allocate zebra structure. */
	555	zclient = zclient_new ();
	556	zclient_init (zclient, ZEBRA_ROUTE_OSPF6);
18a6dce6	557	zclient->router_id_update = ospf6_router_id_update_zebra;
718e3744	558	zclient->interface_add = ospf6_zebra_if_add;
	559	zclient->interface_delete = ospf6_zebra_if_del;
	560	zclient->interface_up = ospf6_zebra_if_state_update;
	561	zclient->interface_down = ospf6_zebra_if_state_update;
	562	zclient->interface_address_add = ospf6_zebra_if_address_update_add;
	563	zclient->interface_address_delete = ospf6_zebra_if_address_update_delete;
	564	zclient->ipv4_route_add = NULL;
	565	zclient->ipv4_route_delete = NULL;
	566	zclient->ipv6_route_add = ospf6_zebra_read_ipv6;
	567	zclient->ipv6_route_delete = ospf6_zebra_read_ipv6;
	568
	569	/* redistribute connected route by default */
	570	/* ospf6_zebra_redistribute (ZEBRA_ROUTE_CONNECT); */
	571
	572	/* Install zebra node. */
508e53e2	573	install_node (&zebra_node, config_write_ospf6_zebra);
718e3744	574
	575	/* Install command element for zebra node. */
	576	install_element (VIEW_NODE, &show_zebra_cmd);
	577	install_element (ENABLE_NODE, &show_zebra_cmd);
	578	install_element (CONFIG_NODE, &router_zebra_cmd);
	579	install_element (CONFIG_NODE, &no_router_zebra_cmd);
508e53e2	580
718e3744	581	install_default (ZEBRA_NODE);
	582	install_element (ZEBRA_NODE, &redistribute_ospf6_cmd);
	583	install_element (ZEBRA_NODE, &no_redistribute_ospf6_cmd);
	584
718e3744	585	return;
	586	}
	587
508e53e2	588	/* Debug */
	589	\f
	590	DEFUN (debug_ospf6_zebra_sendrecv,
	591	debug_ospf6_zebra_sendrecv_cmd,
	592	"debug ospf6 zebra (send\|recv)",
	593	DEBUG_STR
	594	OSPF6_STR
	595	"Debug connection between zebra\n"
	596	"Debug Sending zebra\n"
	597	"Debug Receiving zebra\n"
	598	)
	599	{
	600	unsigned char level = 0;
	601
	602	if (argc)
	603	{
	604	if (! strncmp (argv[0], "s", 1))
	605	level = OSPF6_DEBUG_ZEBRA_SEND;
	606	else if (! strncmp (argv[0], "r", 1))
	607	level = OSPF6_DEBUG_ZEBRA_RECV;
	608	}
	609	else
	610	level = OSPF6_DEBUG_ZEBRA_SEND \| OSPF6_DEBUG_ZEBRA_RECV;
	611
	612	OSPF6_DEBUG_ZEBRA_ON (level);
	613	return CMD_SUCCESS;
	614	}
	615
	616	ALIAS (debug_ospf6_zebra_sendrecv,
	617	debug_ospf6_zebra_cmd,
	618	"debug ospf6 zebra",
	619	DEBUG_STR
	620	OSPF6_STR
	621	"Debug connection between zebra\n"
	622	);
	623
	624
	625	DEFUN (no_debug_ospf6_zebra_sendrecv,
	626	no_debug_ospf6_zebra_sendrecv_cmd,
	627	"no debug ospf6 zebra (send\|recv)",
	628	NO_STR
	629	DEBUG_STR
	630	OSPF6_STR
	631	"Debug connection between zebra\n"
	632	"Debug Sending zebra\n"
	633	"Debug Receiving zebra\n"
	634	)
	635	{
	636	unsigned char level = 0;
	637
	638	if (argc)
	639	{
	640	if (! strncmp (argv[0], "s", 1))
	641	level = OSPF6_DEBUG_ZEBRA_SEND;
	642	else if (! strncmp (argv[0], "r", 1))
	643	level = OSPF6_DEBUG_ZEBRA_RECV;
	644	}
	645	else
	646	level = OSPF6_DEBUG_ZEBRA_SEND \| OSPF6_DEBUG_ZEBRA_RECV;
	647
	648	OSPF6_DEBUG_ZEBRA_OFF (level);
	649	return CMD_SUCCESS;
	650	}
	651
652	ALIAS (no_debug_ospf6_zebra_sendrecv,
653	no_debug_ospf6_zebra_cmd,
654	"no debug ospf6 zebra",
655	NO_STR
656	DEBUG_STR
657	OSPF6_STR
658	"Debug connection between zebra\n"
659	);
660
661	int
662	config_write_ospf6_debug_zebra (struct vty *vty)
663	{
664	if (IS_OSPF6_DEBUG_ZEBRA (SEND) && IS_OSPF6_DEBUG_ZEBRA (RECV))
049207c3	665	vty_out (vty, "debug ospf6 zebra%s", VNL);
508e53e2	666	else
	667	{
	668	if (IS_OSPF6_DEBUG_ZEBRA (SEND))
049207c3	669	vty_out (vty, "debug ospf6 zebra send%s", VNL);
508e53e2	670	if (IS_OSPF6_DEBUG_ZEBRA (RECV))
049207c3	671	vty_out (vty, "debug ospf6 zebra recv%s", VNL);
508e53e2	672	}
	673	return 0;
	674	}
	675
718e3744	676	void
508e53e2	677	install_element_ospf6_debug_zebra ()
718e3744	678	{
508e53e2	679	install_element (ENABLE_NODE, &debug_ospf6_zebra_cmd);
	680	install_element (ENABLE_NODE, &no_debug_ospf6_zebra_cmd);
	681	install_element (ENABLE_NODE, &debug_ospf6_zebra_sendrecv_cmd);
	682	install_element (ENABLE_NODE, &no_debug_ospf6_zebra_sendrecv_cmd);
	683	install_element (CONFIG_NODE, &debug_ospf6_zebra_cmd);
	684	install_element (CONFIG_NODE, &no_debug_ospf6_zebra_cmd);
	685	install_element (CONFIG_NODE, &debug_ospf6_zebra_sendrecv_cmd);
	686	install_element (CONFIG_NODE, &no_debug_ospf6_zebra_sendrecv_cmd);
718e3744	687	}
718e3744	688
508e53e2	689