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1 /* Copyright (C) 2007-2013 B.A.T.M.A.N. contributors:
2  *
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
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
17  * 02110-1301, USA
18  */
19
20 #ifndef _NET_BATMAN_ADV_SEND_H_
21 #define _NET_BATMAN_ADV_SEND_H_
22
23 int batadv_send_skb_packet(struct sk_buff *skb,
24                            struct batadv_hard_iface *hard_iface,
25                            const uint8_t *dst_addr);
26 int batadv_send_skb_to_orig(struct sk_buff *skb,
27                             struct batadv_orig_node *orig_node,
28                             struct batadv_hard_iface *recv_if);
29 void batadv_schedule_bat_ogm(struct batadv_hard_iface *hard_iface);
30 int batadv_add_bcast_packet_to_list(struct batadv_priv *bat_priv,
31                                     const struct sk_buff *skb,
32                                     unsigned long delay);
33 void batadv_send_outstanding_bat_ogm_packet(struct work_struct *work);
34 void
35 batadv_purge_outstanding_packets(struct batadv_priv *bat_priv,
36                                  const struct batadv_hard_iface *hard_iface);
37 bool batadv_send_skb_prepare_unicast_4addr(struct batadv_priv *bat_priv,
38                                            struct sk_buff *skb,
39                                            struct batadv_orig_node *orig_node,
40                                            int packet_subtype);
41 int batadv_send_skb_via_tt_generic(struct batadv_priv *bat_priv,
42                                    struct sk_buff *skb, int packet_type,
43                                    int packet_subtype, unsigned short vid);
44 int batadv_send_skb_via_gw(struct batadv_priv *bat_priv, struct sk_buff *skb,
45                            unsigned short vid);
46
47 /**
48  * batadv_send_skb_via_tt - send an skb via TT lookup
49  * @bat_priv: the bat priv with all the soft interface information
50  * @skb: the payload to send
51  * @vid: the vid to be used to search the translation table
52  *
53  * Look up the recipient node for the destination address in the ethernet
54  * header via the translation table. Wrap the given skb into a batman-adv
55  * unicast header. Then send this frame to the according destination node.
56  *
57  * Returns NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise.
58  */
59 static inline int batadv_send_skb_via_tt(struct batadv_priv *bat_priv,
60                                          struct sk_buff *skb,
61                                          unsigned short vid)
62 {
63         return batadv_send_skb_via_tt_generic(bat_priv, skb, BATADV_UNICAST, 0,
64                                               vid);
65 }
66
67 /**
68  * batadv_send_skb_via_tt_4addr - send an skb via TT lookup
69  * @bat_priv: the bat priv with all the soft interface information
70  * @skb: the payload to send
71  * @packet_subtype: the unicast 4addr packet subtype to use
72  * @vid: the vid to be used to search the translation table
73  *
74  * Look up the recipient node for the destination address in the ethernet
75  * header via the translation table. Wrap the given skb into a batman-adv
76  * unicast-4addr header. Then send this frame to the according destination
77  * node.
78  *
79  * Returns NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise.
80  */
81 static inline int batadv_send_skb_via_tt_4addr(struct batadv_priv *bat_priv,
82                                                struct sk_buff *skb,
83                                                int packet_subtype,
84                                                unsigned short vid)
85 {
86         return batadv_send_skb_via_tt_generic(bat_priv, skb,
87                                               BATADV_UNICAST_4ADDR,
88                                               packet_subtype, vid);
89 }
90
91 #endif /* _NET_BATMAN_ADV_SEND_H_ */