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d6f94d91 LL |
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 | ||
0b5ecc68 | 21 | #include <linux/atomic.h> |
d6f94d91 LL |
22 | #include <linux/cache.h> |
23 | #include <linux/init.h> | |
24 | ||
25 | #include "bat_v_elp.h" | |
0da00359 | 26 | #include "bat_v_ogm.h" |
162bd64c | 27 | #include "packet.h" |
d6f94d91 LL |
28 | |
29 | static int batadv_v_iface_enable(struct batadv_hard_iface *hard_iface) | |
30 | { | |
0da00359 AQ |
31 | int ret; |
32 | ||
33 | ret = batadv_v_elp_iface_enable(hard_iface); | |
34 | if (ret < 0) | |
35 | return ret; | |
36 | ||
37 | ret = batadv_v_ogm_iface_enable(hard_iface); | |
38 | if (ret < 0) | |
39 | batadv_v_elp_iface_disable(hard_iface); | |
40 | ||
0b5ecc68 AQ |
41 | /* enable link throughput auto-detection by setting the throughput |
42 | * override to zero | |
43 | */ | |
44 | atomic_set(&hard_iface->bat_v.throughput_override, 0); | |
45 | ||
0da00359 | 46 | return ret; |
d6f94d91 LL |
47 | } |
48 | ||
49 | static void batadv_v_iface_disable(struct batadv_hard_iface *hard_iface) | |
50 | { | |
51 | batadv_v_elp_iface_disable(hard_iface); | |
52 | } | |
53 | ||
54 | static void batadv_v_iface_update_mac(struct batadv_hard_iface *hard_iface) | |
55 | { | |
56 | } | |
57 | ||
58 | static void batadv_v_primary_iface_set(struct batadv_hard_iface *hard_iface) | |
59 | { | |
60 | batadv_v_elp_primary_iface_set(hard_iface); | |
0da00359 | 61 | batadv_v_ogm_primary_iface_set(hard_iface); |
d6f94d91 LL |
62 | } |
63 | ||
162bd64c LL |
64 | static void |
65 | batadv_v_hardif_neigh_init(struct batadv_hardif_neigh_node *hardif_neigh) | |
66 | { | |
67 | ewma_throughput_init(&hardif_neigh->bat_v.throughput); | |
68 | } | |
69 | ||
d6f94d91 LL |
70 | static void batadv_v_ogm_schedule(struct batadv_hard_iface *hard_iface) |
71 | { | |
72 | } | |
73 | ||
74 | static void batadv_v_ogm_emit(struct batadv_forw_packet *forw_packet) | |
75 | { | |
76 | } | |
77 | ||
78 | static struct batadv_algo_ops batadv_batman_v __read_mostly = { | |
79 | .name = "BATMAN_V", | |
80 | .bat_iface_enable = batadv_v_iface_enable, | |
81 | .bat_iface_disable = batadv_v_iface_disable, | |
82 | .bat_iface_update_mac = batadv_v_iface_update_mac, | |
83 | .bat_primary_iface_set = batadv_v_primary_iface_set, | |
162bd64c | 84 | .bat_hardif_neigh_init = batadv_v_hardif_neigh_init, |
d6f94d91 LL |
85 | .bat_ogm_emit = batadv_v_ogm_emit, |
86 | .bat_ogm_schedule = batadv_v_ogm_schedule, | |
87 | }; | |
88 | ||
0da00359 AQ |
89 | /** |
90 | * batadv_v_mesh_init - initialize the B.A.T.M.A.N. V private resources for a | |
91 | * mesh | |
92 | * @bat_priv: the object representing the mesh interface to initialise | |
93 | * | |
94 | * Return: 0 on success or a negative error code otherwise | |
95 | */ | |
96 | int batadv_v_mesh_init(struct batadv_priv *bat_priv) | |
97 | { | |
98 | return batadv_v_ogm_init(bat_priv); | |
99 | } | |
100 | ||
101 | /** | |
102 | * batadv_v_mesh_free - free the B.A.T.M.A.N. V private resources for a mesh | |
103 | * @bat_priv: the object representing the mesh interface to free | |
104 | */ | |
105 | void batadv_v_mesh_free(struct batadv_priv *bat_priv) | |
106 | { | |
107 | batadv_v_ogm_free(bat_priv); | |
108 | } | |
109 | ||
d6f94d91 LL |
110 | /** |
111 | * batadv_v_init - B.A.T.M.A.N. V initialization function | |
112 | * | |
113 | * Description: Takes care of initializing all the subcomponents. | |
114 | * It is invoked upon module load only. | |
115 | * | |
116 | * Return: 0 on success or a negative error code otherwise | |
117 | */ | |
118 | int __init batadv_v_init(void) | |
119 | { | |
162bd64c LL |
120 | int ret; |
121 | ||
122 | /* B.A.T.M.A.N. V echo location protocol packet */ | |
123 | ret = batadv_recv_handler_register(BATADV_ELP, | |
124 | batadv_v_elp_packet_recv); | |
125 | if (ret < 0) | |
126 | return ret; | |
127 | ||
0da00359 AQ |
128 | ret = batadv_recv_handler_register(BATADV_OGM2, |
129 | batadv_v_ogm_packet_recv); | |
130 | if (ret < 0) | |
131 | goto elp_unregister; | |
162bd64c | 132 | |
0da00359 | 133 | ret = batadv_algo_register(&batadv_batman_v); |
162bd64c | 134 | if (ret < 0) |
0da00359 AQ |
135 | goto ogm_unregister; |
136 | ||
137 | return ret; | |
138 | ||
139 | ogm_unregister: | |
140 | batadv_recv_handler_unregister(BATADV_OGM2); | |
141 | ||
142 | elp_unregister: | |
143 | batadv_recv_handler_unregister(BATADV_ELP); | |
162bd64c LL |
144 | |
145 | return ret; | |
d6f94d91 | 146 | } |