Line data    Source code

       1             : /*
       2             :  * Copyright (C) 2018 NetDEF, Inc.
       3             :  *                    Renato Westphal
       4             :  *
       5             :  * This program is free software; you can redistribute it and/or modify it
       6             :  * under the terms of the GNU General Public License as published by the Free
       7             :  * Software Foundation; either version 2 of the License, or (at your option)
       8             :  * any later version.
       9             :  *
      10             :  * This program is distributed in the hope that it will be useful, but WITHOUT
      11             :  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
      12             :  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
      13             :  * more details.
      14             :  *
      15             :  * You should have received a copy of the GNU General Public License along
      16             :  * with this program; see the file COPYING; if not, write to the Free Software
      17             :  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
      18             :  */
      19             : 
      20             : #include <zebra.h>
      21             : 
      22             : #include "if.h"
      23             : #include "vrf.h"
      24             : #include "log.h"
      25             : #include "prefix.h"
      26             : #include "table.h"
      27             : #include "command.h"
      28             : #include "routemap.h"
      29             : #include "agg_table.h"
      30             : #include "northbound.h"
      31             : #include "libfrr.h"
      32             : 
      33             : #include "ripngd/ripngd.h"
      34             : #include "ripngd/ripng_nb.h"
      35             : #include "ripngd/ripng_debug.h"
      36             : #include "ripngd/ripng_route.h"
      37             : 
      38             : /*
      39             :  * XPath: /frr-ripngd:clear-ripng-route
      40             :  */
      41           0 : static void clear_ripng_route(struct ripng *ripng)
      42             : {
      43           0 :         struct agg_node *rp;
      44             : 
      45           0 :         if (IS_RIPNG_DEBUG_EVENT)
      46           0 :                 zlog_debug("Clearing all RIPng routes (VRF %s)",
      47             :                            ripng->vrf_name);
      48             : 
      49             :         /* Clear received RIPng routes */
      50           0 :         for (rp = agg_route_top(ripng->table); rp; rp = agg_route_next(rp)) {
      51           0 :                 struct list *list;
      52           0 :                 struct listnode *listnode;
      53           0 :                 struct ripng_info *rinfo;
      54             : 
      55           0 :                 list = rp->info;
      56           0 :                 if (list == NULL)
      57           0 :                         continue;
      58             : 
      59           0 :                 for (ALL_LIST_ELEMENTS_RO(list, listnode, rinfo)) {
      60           0 :                         if (!ripng_route_rte(rinfo))
      61           0 :                                 continue;
      62             : 
      63           0 :                         if (CHECK_FLAG(rinfo->flags, RIPNG_RTF_FIB))
      64           0 :                                 ripng_zebra_ipv6_delete(ripng, rp);
      65             :                         break;
      66             :                 }
      67             : 
      68           0 :                 if (rinfo) {
      69           0 :                         THREAD_OFF(rinfo->t_timeout);
      70           0 :                         THREAD_OFF(rinfo->t_garbage_collect);
      71           0 :                         listnode_delete(list, rinfo);
      72           0 :                         ripng_info_free(rinfo);
      73             :                 }
      74             : 
      75           0 :                 if (list_isempty(list)) {
      76           0 :                         list_delete(&list);
      77           0 :                         rp->info = NULL;
      78           0 :                         agg_unlock_node(rp);
      79             :                 }
      80             :         }
      81           0 : }
      82             : 
      83           0 : int clear_ripng_route_rpc(struct nb_cb_rpc_args *args)
      84             : {
      85           0 :         struct ripng *ripng;
      86           0 :         struct yang_data *yang_vrf;
      87             : 
      88           0 :         yang_vrf = yang_data_list_find(args->input, "%s/%s", args->xpath,
      89             :                                        "input/vrf");
      90           0 :         if (yang_vrf) {
      91           0 :                 ripng = ripng_lookup_by_vrf_name(yang_vrf->value);
      92           0 :                 if (ripng)
      93           0 :                         clear_ripng_route(ripng);
      94             :         } else {
      95           0 :                 struct vrf *vrf;
      96             : 
      97           0 :                 RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) {
      98           0 :                         ripng = vrf->info;
      99           0 :                         if (!ripng)
     100           0 :                                 continue;
     101             : 
     102           0 :                         clear_ripng_route(ripng);
     103             :                 }
     104             :         }
     105             : 
     106           0 :         return NB_OK;
     107             : }