net/batman-adv/bat_v.c

   1 /* Copyright (C) 2013-2016 B.A.T.M.A.N. contributors:
   2  *
   3  * Linus Lüssing, Marek Lindner
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of version 2 of the GNU General Public
   7  * License as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include "bat_algo.h"
  19 #include "main.h"
  20
  21 #include <linux/cache.h>
  22 #include <linux/init.h>
  23
  24 #include "bat_v_elp.h"
  25 #include "packet.h"
  26
  27 static int batadv_v_iface_enable(struct batadv_hard_iface *hard_iface)
  28 {
  29         return batadv_v_elp_iface_enable(hard_iface);
  30 }
  31
  32 static void batadv_v_iface_disable(struct batadv_hard_iface *hard_iface)
  33 {
  34         batadv_v_elp_iface_disable(hard_iface);
  35 }
  36
  37 static void batadv_v_iface_update_mac(struct batadv_hard_iface *hard_iface)
  38 {
  39 }
  40
  41 static void batadv_v_primary_iface_set(struct batadv_hard_iface *hard_iface)
  42 {
  43         batadv_v_elp_primary_iface_set(hard_iface);
  44 }
  45
  46 static void
  47 batadv_v_hardif_neigh_init(struct batadv_hardif_neigh_node *hardif_neigh)
  48 {
  49         ewma_throughput_init(&hardif_neigh->bat_v.throughput);
  50 }
  51
  52 static void batadv_v_ogm_schedule(struct batadv_hard_iface *hard_iface)
  53 {
  54 }
  55
  56 static void batadv_v_ogm_emit(struct batadv_forw_packet *forw_packet)
  57 {
  58 }
  59
  60 static struct batadv_algo_ops batadv_batman_v __read_mostly = {
  61         .name = "BATMAN_V",
  62         .bat_iface_enable = batadv_v_iface_enable,
  63         .bat_iface_disable = batadv_v_iface_disable,
  64         .bat_iface_update_mac = batadv_v_iface_update_mac,
  65         .bat_primary_iface_set = batadv_v_primary_iface_set,
  66         .bat_hardif_neigh_init = batadv_v_hardif_neigh_init,
  67         .bat_ogm_emit = batadv_v_ogm_emit,
  68         .bat_ogm_schedule = batadv_v_ogm_schedule,
  69 };
  70
  71 /**
  72  * batadv_v_init - B.A.T.M.A.N. V initialization function
  73  *
  74  * Description: Takes care of initializing all the subcomponents.
  75  * It is invoked upon module load only.
  76  *
  77  * Return: 0 on success or a negative error code otherwise
  78  */
  79 int __init batadv_v_init(void)
  80 {
  81         int ret;
  82
  83         /* B.A.T.M.A.N. V echo location protocol packet  */
  84         ret = batadv_recv_handler_register(BATADV_ELP,
  85                                            batadv_v_elp_packet_recv);
  86         if (ret < 0)
  87                 return ret;
  88
  89         ret = batadv_algo_register(&batadv_batman_v);
  90
  91         if (ret < 0)
  92                 batadv_recv_handler_unregister(BATADV_ELP);
  93
  94         return ret;
  95 }