1 /* Copyright (C) 2007-2016 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_to_orig(struct sk_buff *skb, 32 struct batadv_orig_node *orig_node, 33 struct batadv_hard_iface *recv_if); 34 int batadv_send_skb_packet(struct sk_buff *skb, 35 struct batadv_hard_iface *hard_iface, 36 const u8 *dst_addr); 37 int batadv_send_broadcast_skb(struct sk_buff *skb, 38 struct batadv_hard_iface *hard_iface); 39 int batadv_send_unicast_skb(struct sk_buff *skb, 40 struct batadv_neigh_node *neigh_node); 41 void batadv_schedule_bat_ogm(struct batadv_hard_iface *hard_iface); 42 int batadv_add_bcast_packet_to_list(struct batadv_priv *bat_priv, 43 const struct sk_buff *skb, 44 unsigned long delay); 45 void batadv_send_outstanding_bat_ogm_packet(struct work_struct *work); 46 void 47 batadv_purge_outstanding_packets(struct batadv_priv *bat_priv, 48 const struct batadv_hard_iface *hard_iface); 49 bool 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); 53 int 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); 58 int batadv_send_skb_via_tt_generic(struct batadv_priv *bat_priv, 59 struct sk_buff *skb, int packet_type, 60 int packet_subtype, u8 *dst_hint, 61 unsigned short vid); 62 int batadv_send_skb_via_gw(struct batadv_priv *bat_priv, struct sk_buff *skb, 63 unsigned short vid); 64 65 /** 66 * batadv_send_skb_via_tt - send an skb via TT lookup 67 * @bat_priv: the bat priv with all the soft interface information 68 * @skb: the payload to send 69 * @dst_hint: can be used to override the destination contained in the skb 70 * @vid: the vid to be used to search the translation table 71 * 72 * 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 * 76 * Return: NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise. 77 */ 78 static inline int batadv_send_skb_via_tt(struct batadv_priv *bat_priv, 79 struct sk_buff *skb, u8 *dst_hint, 80 unsigned short vid) 81 { 82 return batadv_send_skb_via_tt_generic(bat_priv, skb, BATADV_UNICAST, 0, 83 dst_hint, vid); 84 } 85 86 /** 87 * batadv_send_skb_via_tt_4addr - send an skb via TT lookup 88 * @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 91 * @dst_hint: can be used to override the destination contained in the skb 92 * @vid: the vid to be used to search the translation table 93 * 94 * 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 * 99 * Return: NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise. 100 */ 101 static inline int batadv_send_skb_via_tt_4addr(struct batadv_priv *bat_priv, 102 struct sk_buff *skb, 103 int packet_subtype, 104 u8 *dst_hint, 105 unsigned short vid) 106 { 107 return batadv_send_skb_via_tt_generic(bat_priv, skb, 108 BATADV_UNICAST_4ADDR, 109 packet_subtype, dst_hint, vid); 110 } 111 112 #endif /* _NET_BATMAN_ADV_SEND_H_ */ 113