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_ */ 109