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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>
24#include <linux/types.h>
25
26#include "packet.h"
27
Sven Eckelmann1e2c2a42015-04-17 19:40:28 +020028struct sk_buff;
Sven Eckelmann1e2c2a42015-04-17 19:40:28 +020029
Antonio Quartullif0d97252016-05-03 01:45:34 +080030void batadv_forw_packet_free(struct batadv_forw_packet *forw_packet);
Martin Hundebølle91ecfc2013-04-20 13:54:39 +020031int batadv_send_skb_to_orig(struct sk_buff *skb,
32 struct batadv_orig_node *orig_node,
33 struct batadv_hard_iface *recv_if);
Antonio Quartulli95d39272016-01-16 16:40:15 +080034int batadv_send_skb_packet(struct sk_buff *skb,
35 struct batadv_hard_iface *hard_iface,
36 const u8 *dst_addr);
37int batadv_send_broadcast_skb(struct sk_buff *skb,
38 struct batadv_hard_iface *hard_iface);
39int batadv_send_unicast_skb(struct sk_buff *skb,
40 struct batadv_neigh_node *neigh_node);
Sven Eckelmann56303d32012-06-05 22:31:31 +020041int batadv_add_bcast_packet_to_list(struct batadv_priv *bat_priv,
Sven Eckelmann9455e342012-05-12 02:09:37 +020042 const struct sk_buff *skb,
43 unsigned long delay);
Sven Eckelmann56303d32012-06-05 22:31:31 +020044void
45batadv_purge_outstanding_packets(struct batadv_priv *bat_priv,
46 const struct batadv_hard_iface *hard_iface);
Martin Hundebøllf097e252013-05-23 16:53:01 +020047bool batadv_send_skb_prepare_unicast_4addr(struct batadv_priv *bat_priv,
48 struct sk_buff *skb,
49 struct batadv_orig_node *orig_node,
50 int packet_subtype);
Linus Lüssing1d8ab8d2014-02-15 17:47:52 +010051int batadv_send_skb_unicast(struct batadv_priv *bat_priv,
52 struct sk_buff *skb, int packet_type,
53 int packet_subtype,
54 struct batadv_orig_node *orig_node,
55 unsigned short vid);
Linus Lüssinge300d312013-07-03 10:40:00 +020056int batadv_send_skb_via_tt_generic(struct batadv_priv *bat_priv,
57 struct sk_buff *skb, int packet_type,
Sven Eckelmann6b5e9712015-05-26 18:34:26 +020058 int packet_subtype, u8 *dst_hint,
Antonio Quartulli6c413b12013-11-05 19:31:08 +010059 unsigned short vid);
Linus Lüssinge300d312013-07-03 10:40:00 +020060int batadv_send_skb_via_gw(struct batadv_priv *bat_priv, struct sk_buff *skb,
61 unsigned short vid);
Martin Hundebøllf097e252013-05-23 16:53:01 +020062
63/**
Linus Lüssinge300d312013-07-03 10:40:00 +020064 * batadv_send_skb_via_tt - send an skb via TT lookup
Martin Hundebøllf097e252013-05-23 16:53:01 +020065 * @bat_priv: the bat priv with all the soft interface information
66 * @skb: the payload to send
Antonio Quartullic5d3a652014-02-15 11:58:01 +010067 * @dst_hint: can be used to override the destination contained in the skb
Antonio Quartullic018ad32013-06-04 12:11:39 +020068 * @vid: the vid to be used to search the translation table
Martin Hundebøllf097e252013-05-23 16:53:01 +020069 *
Linus Lüssinge300d312013-07-03 10:40:00 +020070 * Look up the recipient node for the destination address in the ethernet
71 * header via the translation table. Wrap the given skb into a batman-adv
72 * unicast header. Then send this frame to the according destination node.
73 *
Sven Eckelmann62fe7102015-09-15 19:00:48 +020074 * Return: NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise.
Martin Hundebøllf097e252013-05-23 16:53:01 +020075 */
Linus Lüssinge300d312013-07-03 10:40:00 +020076static inline int batadv_send_skb_via_tt(struct batadv_priv *bat_priv,
Sven Eckelmann6b5e9712015-05-26 18:34:26 +020077 struct sk_buff *skb, u8 *dst_hint,
Linus Lüssinge300d312013-07-03 10:40:00 +020078 unsigned short vid)
Martin Hundebøllf097e252013-05-23 16:53:01 +020079{
Linus Lüssinge300d312013-07-03 10:40:00 +020080 return batadv_send_skb_via_tt_generic(bat_priv, skb, BATADV_UNICAST, 0,
Antonio Quartulli6c413b12013-11-05 19:31:08 +010081 dst_hint, vid);
Martin Hundebøllf097e252013-05-23 16:53:01 +020082}
83
84/**
Linus Lüssinge300d312013-07-03 10:40:00 +020085 * batadv_send_skb_via_tt_4addr - send an skb via TT lookup
Martin Hundebøllf097e252013-05-23 16:53:01 +020086 * @bat_priv: the bat priv with all the soft interface information
87 * @skb: the payload to send
88 * @packet_subtype: the unicast 4addr packet subtype to use
Antonio Quartullic5d3a652014-02-15 11:58:01 +010089 * @dst_hint: can be used to override the destination contained in the skb
Antonio Quartullic018ad32013-06-04 12:11:39 +020090 * @vid: the vid to be used to search the translation table
Martin Hundebøllf097e252013-05-23 16:53:01 +020091 *
Linus Lüssinge300d312013-07-03 10:40:00 +020092 * Look up the recipient node for the destination address in the ethernet
93 * header via the translation table. Wrap the given skb into a batman-adv
94 * unicast-4addr header. Then send this frame to the according destination
95 * node.
96 *
Sven Eckelmann62fe7102015-09-15 19:00:48 +020097 * Return: NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise.
Martin Hundebøllf097e252013-05-23 16:53:01 +020098 */
Linus Lüssinge300d312013-07-03 10:40:00 +020099static inline int batadv_send_skb_via_tt_4addr(struct batadv_priv *bat_priv,
100 struct sk_buff *skb,
101 int packet_subtype,
Sven Eckelmann6b5e9712015-05-26 18:34:26 +0200102 u8 *dst_hint,
Linus Lüssinge300d312013-07-03 10:40:00 +0200103 unsigned short vid)
Martin Hundebøllf097e252013-05-23 16:53:01 +0200104{
Linus Lüssinge300d312013-07-03 10:40:00 +0200105 return batadv_send_skb_via_tt_generic(bat_priv, skb,
106 BATADV_UNICAST_4ADDR,
Antonio Quartulli6c413b12013-11-05 19:31:08 +0100107 packet_subtype, dst_hint, vid);
Martin Hundebøllf097e252013-05-23 16:53:01 +0200108}
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000109
110#endif /* _NET_BATMAN_ADV_SEND_H_ */