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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;
29struct work_struct;
30
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 +020041void batadv_schedule_bat_ogm(struct batadv_hard_iface *hard_iface);
42int batadv_add_bcast_packet_to_list(struct batadv_priv *bat_priv,
Sven Eckelmann9455e342012-05-12 02:09:37 +020043 const struct sk_buff *skb,
44 unsigned long delay);
45void batadv_send_outstanding_bat_ogm_packet(struct work_struct *work);
Sven Eckelmann56303d32012-06-05 22:31:31 +020046void
47batadv_purge_outstanding_packets(struct batadv_priv *bat_priv,
48 const struct batadv_hard_iface *hard_iface);
Martin Hundebøllf097e252013-05-23 16:53:01 +020049bool batadv_send_skb_prepare_unicast_4addr(struct batadv_priv *bat_priv,
50 struct sk_buff *skb,
51 struct batadv_orig_node *orig_node,
52 int packet_subtype);
Linus Lüssing1d8ab8d2014-02-15 17:47:52 +010053int batadv_send_skb_unicast(struct batadv_priv *bat_priv,
54 struct sk_buff *skb, int packet_type,
55 int packet_subtype,
56 struct batadv_orig_node *orig_node,
57 unsigned short vid);
Linus Lüssinge300d312013-07-03 10:40:00 +020058int batadv_send_skb_via_tt_generic(struct batadv_priv *bat_priv,
59 struct sk_buff *skb, int packet_type,
Sven Eckelmann6b5e9712015-05-26 18:34:26 +020060 int packet_subtype, u8 *dst_hint,
Antonio Quartulli6c413b12013-11-05 19:31:08 +010061 unsigned short vid);
Linus Lüssinge300d312013-07-03 10:40:00 +020062int batadv_send_skb_via_gw(struct batadv_priv *bat_priv, struct sk_buff *skb,
63 unsigned short vid);
Martin Hundebøllf097e252013-05-23 16:53:01 +020064
65/**
Linus Lüssinge300d312013-07-03 10:40:00 +020066 * batadv_send_skb_via_tt - send an skb via TT lookup
Martin Hundebøllf097e252013-05-23 16:53:01 +020067 * @bat_priv: the bat priv with all the soft interface information
68 * @skb: the payload to send
Antonio Quartullic5d3a652014-02-15 11:58:01 +010069 * @dst_hint: can be used to override the destination contained in the skb
Antonio Quartullic018ad32013-06-04 12:11:39 +020070 * @vid: the vid to be used to search the translation table
Martin Hundebøllf097e252013-05-23 16:53:01 +020071 *
Linus Lüssinge300d312013-07-03 10:40:00 +020072 * Look up the recipient node for the destination address in the ethernet
73 * header via the translation table. Wrap the given skb into a batman-adv
74 * unicast header. Then send this frame to the according destination node.
75 *
Sven Eckelmann62fe7102015-09-15 19:00:48 +020076 * Return: NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise.
Martin Hundebøllf097e252013-05-23 16:53:01 +020077 */
Linus Lüssinge300d312013-07-03 10:40:00 +020078static inline int batadv_send_skb_via_tt(struct batadv_priv *bat_priv,
Sven Eckelmann6b5e9712015-05-26 18:34:26 +020079 struct sk_buff *skb, u8 *dst_hint,
Linus Lüssinge300d312013-07-03 10:40:00 +020080 unsigned short vid)
Martin Hundebøllf097e252013-05-23 16:53:01 +020081{
Linus Lüssinge300d312013-07-03 10:40:00 +020082 return batadv_send_skb_via_tt_generic(bat_priv, skb, BATADV_UNICAST, 0,
Antonio Quartulli6c413b12013-11-05 19:31:08 +010083 dst_hint, vid);
Martin Hundebøllf097e252013-05-23 16:53:01 +020084}
85
86/**
Linus Lüssinge300d312013-07-03 10:40:00 +020087 * batadv_send_skb_via_tt_4addr - send an skb via TT lookup
Martin Hundebøllf097e252013-05-23 16:53:01 +020088 * @bat_priv: the bat priv with all the soft interface information
89 * @skb: the payload to send
90 * @packet_subtype: the unicast 4addr packet subtype to use
Antonio Quartullic5d3a652014-02-15 11:58:01 +010091 * @dst_hint: can be used to override the destination contained in the skb
Antonio Quartullic018ad32013-06-04 12:11:39 +020092 * @vid: the vid to be used to search the translation table
Martin Hundebøllf097e252013-05-23 16:53:01 +020093 *
Linus Lüssinge300d312013-07-03 10:40:00 +020094 * Look up the recipient node for the destination address in the ethernet
95 * header via the translation table. Wrap the given skb into a batman-adv
96 * unicast-4addr header. Then send this frame to the according destination
97 * node.
98 *
Sven Eckelmann62fe7102015-09-15 19:00:48 +020099 * Return: NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise.
Martin Hundebøllf097e252013-05-23 16:53:01 +0200100 */
Linus Lüssinge300d312013-07-03 10:40:00 +0200101static inline int batadv_send_skb_via_tt_4addr(struct batadv_priv *bat_priv,
102 struct sk_buff *skb,
103 int packet_subtype,
Sven Eckelmann6b5e9712015-05-26 18:34:26 +0200104 u8 *dst_hint,
Linus Lüssinge300d312013-07-03 10:40:00 +0200105 unsigned short vid)
Martin Hundebøllf097e252013-05-23 16:53:01 +0200106{
Linus Lüssinge300d312013-07-03 10:40:00 +0200107 return batadv_send_skb_via_tt_generic(bat_priv, skb,
108 BATADV_UNICAST_4ADDR,
Antonio Quartulli6c413b12013-11-05 19:31:08 +0100109 packet_subtype, dst_hint, vid);
Martin Hundebøllf097e252013-05-23 16:53:01 +0200110}
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000111
112#endif /* _NET_BATMAN_ADV_SEND_H_ */