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Sven Eckelmann0046b042016-01-01 00:01:03 +01001/* Copyright (C) 2007-2016 B.A.T.M.A.N. contributors:
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +00002 *
3 * Marek Lindner, Simon Wunderlich
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
Antonio Quartulliebf38fb2013-11-03 20:40:48 +010015 * along with this program; if not, see <http://www.gnu.org/licenses/>.
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +000016 */
17
18#ifndef _NET_BATMAN_ADV_SEND_H_
19#define _NET_BATMAN_ADV_SEND_H_
20
Sven Eckelmann1e2c2a42015-04-17 19:40:28 +020021#include "main.h"
22
23#include <linux/compiler.h>
Linus Lüssing9b4aec62016-11-01 09:44:44 +010024#include <linux/spinlock.h>
Sven Eckelmann1e2c2a42015-04-17 19:40:28 +020025#include <linux/types.h>
26
27#include "packet.h"
28
Sven Eckelmann1e2c2a42015-04-17 19:40:28 +020029struct sk_buff;
Sven Eckelmann1e2c2a42015-04-17 19:40:28 +020030
Sven Eckelmannbd687fe2016-07-17 21:04:00 +020031void batadv_forw_packet_free(struct batadv_forw_packet *forw_packet,
32 bool dropped);
Linus Lüssinga65e5482016-06-20 21:39:54 +020033struct batadv_forw_packet *
34batadv_forw_packet_alloc(struct batadv_hard_iface *if_incoming,
35 struct batadv_hard_iface *if_outgoing,
36 atomic_t *queue_left,
37 struct batadv_priv *bat_priv);
Linus Lüssing9b4aec62016-11-01 09:44:44 +010038bool batadv_forw_packet_steal(struct batadv_forw_packet *packet, spinlock_t *l);
39void batadv_forw_packet_ogmv1_queue(struct batadv_priv *bat_priv,
40 struct batadv_forw_packet *forw_packet,
41 unsigned long send_time);
Linus Lüssinga65e5482016-06-20 21:39:54 +020042
Martin Hundebølle91ecfc2013-04-20 13:54:39 +020043int batadv_send_skb_to_orig(struct sk_buff *skb,
44 struct batadv_orig_node *orig_node,
45 struct batadv_hard_iface *recv_if);
Antonio Quartulli95d39272016-01-16 16:40:15 +080046int batadv_send_skb_packet(struct sk_buff *skb,
47 struct batadv_hard_iface *hard_iface,
48 const u8 *dst_addr);
49int batadv_send_broadcast_skb(struct sk_buff *skb,
50 struct batadv_hard_iface *hard_iface);
51int batadv_send_unicast_skb(struct sk_buff *skb,
52 struct batadv_neigh_node *neigh_node);
Sven Eckelmann56303d32012-06-05 22:31:31 +020053int batadv_add_bcast_packet_to_list(struct batadv_priv *bat_priv,
Sven Eckelmann9455e342012-05-12 02:09:37 +020054 const struct sk_buff *skb,
Linus Lüssing3111bee2016-08-07 12:34:19 +020055 unsigned long delay,
56 bool own_packet);
Sven Eckelmann56303d32012-06-05 22:31:31 +020057void
58batadv_purge_outstanding_packets(struct batadv_priv *bat_priv,
59 const struct batadv_hard_iface *hard_iface);
Martin Hundebøllf097e252013-05-23 16:53:01 +020060bool batadv_send_skb_prepare_unicast_4addr(struct batadv_priv *bat_priv,
61 struct sk_buff *skb,
62 struct batadv_orig_node *orig_node,
63 int packet_subtype);
Linus Lüssing1d8ab8d2014-02-15 17:47:52 +010064int batadv_send_skb_unicast(struct batadv_priv *bat_priv,
65 struct sk_buff *skb, int packet_type,
66 int packet_subtype,
67 struct batadv_orig_node *orig_node,
68 unsigned short vid);
Linus Lüssinge300d312013-07-03 10:40:00 +020069int batadv_send_skb_via_tt_generic(struct batadv_priv *bat_priv,
70 struct sk_buff *skb, int packet_type,
Sven Eckelmann6b5e9712015-05-26 18:34:26 +020071 int packet_subtype, u8 *dst_hint,
Antonio Quartulli6c413b12013-11-05 19:31:08 +010072 unsigned short vid);
Linus Lüssinge300d312013-07-03 10:40:00 +020073int batadv_send_skb_via_gw(struct batadv_priv *bat_priv, struct sk_buff *skb,
74 unsigned short vid);
Martin Hundebøllf097e252013-05-23 16:53:01 +020075
76/**
Linus Lüssinge300d312013-07-03 10:40:00 +020077 * batadv_send_skb_via_tt - send an skb via TT lookup
Martin Hundebøllf097e252013-05-23 16:53:01 +020078 * @bat_priv: the bat priv with all the soft interface information
79 * @skb: the payload to send
Antonio Quartullic5d3a652014-02-15 11:58:01 +010080 * @dst_hint: can be used to override the destination contained in the skb
Antonio Quartullic018ad32013-06-04 12:11:39 +020081 * @vid: the vid to be used to search the translation table
Martin Hundebøllf097e252013-05-23 16:53:01 +020082 *
Linus Lüssinge300d312013-07-03 10:40:00 +020083 * Look up the recipient node for the destination address in the ethernet
84 * header via the translation table. Wrap the given skb into a batman-adv
85 * unicast header. Then send this frame to the according destination node.
86 *
Sven Eckelmann62fe7102015-09-15 19:00:48 +020087 * Return: NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise.
Martin Hundebøllf097e252013-05-23 16:53:01 +020088 */
Linus Lüssinge300d312013-07-03 10:40:00 +020089static inline int batadv_send_skb_via_tt(struct batadv_priv *bat_priv,
Sven Eckelmann6b5e9712015-05-26 18:34:26 +020090 struct sk_buff *skb, u8 *dst_hint,
Linus Lüssinge300d312013-07-03 10:40:00 +020091 unsigned short vid)
Martin Hundebøllf097e252013-05-23 16:53:01 +020092{
Linus Lüssinge300d312013-07-03 10:40:00 +020093 return batadv_send_skb_via_tt_generic(bat_priv, skb, BATADV_UNICAST, 0,
Antonio Quartulli6c413b12013-11-05 19:31:08 +010094 dst_hint, vid);
Martin Hundebøllf097e252013-05-23 16:53:01 +020095}
96
97/**
Linus Lüssinge300d312013-07-03 10:40:00 +020098 * batadv_send_skb_via_tt_4addr - send an skb via TT lookup
Martin Hundebøllf097e252013-05-23 16:53:01 +020099 * @bat_priv: the bat priv with all the soft interface information
100 * @skb: the payload to send
101 * @packet_subtype: the unicast 4addr packet subtype to use
Antonio Quartullic5d3a652014-02-15 11:58:01 +0100102 * @dst_hint: can be used to override the destination contained in the skb
Antonio Quartullic018ad32013-06-04 12:11:39 +0200103 * @vid: the vid to be used to search the translation table
Martin Hundebøllf097e252013-05-23 16:53:01 +0200104 *
Linus Lüssinge300d312013-07-03 10:40:00 +0200105 * Look up the recipient node for the destination address in the ethernet
106 * header via the translation table. Wrap the given skb into a batman-adv
107 * unicast-4addr header. Then send this frame to the according destination
108 * node.
109 *
Sven Eckelmann62fe7102015-09-15 19:00:48 +0200110 * Return: NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise.
Martin Hundebøllf097e252013-05-23 16:53:01 +0200111 */
Linus Lüssinge300d312013-07-03 10:40:00 +0200112static inline int batadv_send_skb_via_tt_4addr(struct batadv_priv *bat_priv,
113 struct sk_buff *skb,
114 int packet_subtype,
Sven Eckelmann6b5e9712015-05-26 18:34:26 +0200115 u8 *dst_hint,
Linus Lüssinge300d312013-07-03 10:40:00 +0200116 unsigned short vid)
Martin Hundebøllf097e252013-05-23 16:53:01 +0200117{
Linus Lüssinge300d312013-07-03 10:40:00 +0200118 return batadv_send_skb_via_tt_generic(bat_priv, skb,
119 BATADV_UNICAST_4ADDR,
Antonio Quartulli6c413b12013-11-05 19:31:08 +0100120 packet_subtype, dst_hint, vid);
Martin Hundebøllf097e252013-05-23 16:53:01 +0200121}
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000122
123#endif /* _NET_BATMAN_ADV_SEND_H_ */