| 1 | /* Copyright (C) 2007-2015 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, see <http://www.gnu.org/licenses/>. |
| 16 | */ |
| 17 | |
| 18 | #ifndef _NET_BATMAN_ADV_SEND_H_ |
| 19 | #define _NET_BATMAN_ADV_SEND_H_ |
| 20 | |
| 21 | #include "main.h" |
| 22 | |
| 23 | #include <linux/compiler.h> |
| 24 | #include <linux/types.h> |
| 25 | |
| 26 | #include "packet.h" |
| 27 | |
| 28 | struct sk_buff; |
| 29 | struct work_struct; |
| 30 | |
| 31 | int batadv_send_skb_packet(struct sk_buff *skb, |
| 32 | struct batadv_hard_iface *hard_iface, |
| 33 | const u8 *dst_addr); |
| 34 | int batadv_send_skb_to_orig(struct sk_buff *skb, |
| 35 | struct batadv_orig_node *orig_node, |
| 36 | struct batadv_hard_iface *recv_if); |
| 37 | void batadv_schedule_bat_ogm(struct batadv_hard_iface *hard_iface); |
| 38 | int batadv_add_bcast_packet_to_list(struct batadv_priv *bat_priv, |
| 39 | const struct sk_buff *skb, |
| 40 | unsigned long delay); |
| 41 | void batadv_send_outstanding_bat_ogm_packet(struct work_struct *work); |
| 42 | void |
| 43 | batadv_purge_outstanding_packets(struct batadv_priv *bat_priv, |
| 44 | const struct batadv_hard_iface *hard_iface); |
| 45 | bool batadv_send_skb_prepare_unicast_4addr(struct batadv_priv *bat_priv, |
| 46 | struct sk_buff *skb, |
| 47 | struct batadv_orig_node *orig_node, |
| 48 | int packet_subtype); |
| 49 | int batadv_send_skb_unicast(struct batadv_priv *bat_priv, |
| 50 | struct sk_buff *skb, int packet_type, |
| 51 | int packet_subtype, |
| 52 | struct batadv_orig_node *orig_node, |
| 53 | unsigned short vid); |
| 54 | int batadv_send_skb_via_tt_generic(struct batadv_priv *bat_priv, |
| 55 | struct sk_buff *skb, int packet_type, |
| 56 | int packet_subtype, u8 *dst_hint, |
| 57 | unsigned short vid); |
| 58 | int batadv_send_skb_via_gw(struct batadv_priv *bat_priv, struct sk_buff *skb, |
| 59 | unsigned short vid); |
| 60 | |
| 61 | /** |
| 62 | * batadv_send_skb_via_tt - send an skb via TT lookup |
| 63 | * @bat_priv: the bat priv with all the soft interface information |
| 64 | * @skb: the payload to send |
| 65 | * @dst_hint: can be used to override the destination contained in the skb |
| 66 | * @vid: the vid to be used to search the translation table |
| 67 | * |
| 68 | * Look up the recipient node for the destination address in the ethernet |
| 69 | * header via the translation table. Wrap the given skb into a batman-adv |
| 70 | * unicast header. Then send this frame to the according destination node. |
| 71 | * |
| 72 | * Returns NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise. |
| 73 | */ |
| 74 | static inline int batadv_send_skb_via_tt(struct batadv_priv *bat_priv, |
| 75 | struct sk_buff *skb, u8 *dst_hint, |
| 76 | unsigned short vid) |
| 77 | { |
| 78 | return batadv_send_skb_via_tt_generic(bat_priv, skb, BATADV_UNICAST, 0, |
| 79 | dst_hint, vid); |
| 80 | } |
| 81 | |
| 82 | /** |
| 83 | * batadv_send_skb_via_tt_4addr - send an skb via TT lookup |
| 84 | * @bat_priv: the bat priv with all the soft interface information |
| 85 | * @skb: the payload to send |
| 86 | * @packet_subtype: the unicast 4addr packet subtype to use |
| 87 | * @dst_hint: can be used to override the destination contained in the skb |
| 88 | * @vid: the vid to be used to search the translation table |
| 89 | * |
| 90 | * Look up the recipient node for the destination address in the ethernet |
| 91 | * header via the translation table. Wrap the given skb into a batman-adv |
| 92 | * unicast-4addr header. Then send this frame to the according destination |
| 93 | * node. |
| 94 | * |
| 95 | * Returns NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise. |
| 96 | */ |
| 97 | static inline int batadv_send_skb_via_tt_4addr(struct batadv_priv *bat_priv, |
| 98 | struct sk_buff *skb, |
| 99 | int packet_subtype, |
| 100 | u8 *dst_hint, |
| 101 | unsigned short vid) |
| 102 | { |
| 103 | return batadv_send_skb_via_tt_generic(bat_priv, skb, |
| 104 | BATADV_UNICAST_4ADDR, |
| 105 | packet_subtype, dst_hint, vid); |
| 106 | } |
| 107 | |
| 108 | #endif /* _NET_BATMAN_ADV_SEND_H_ */ |