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 batadv_hard_iface; 29 struct batadv_orig_node; 30 struct batadv_priv; 31 struct sk_buff; 32 struct work_struct; 33 34 int batadv_send_skb_packet(struct sk_buff *skb, 35 struct batadv_hard_iface *hard_iface, 36 const uint8_t *dst_addr); 37 int batadv_send_skb_to_orig(struct sk_buff *skb, 38 struct batadv_orig_node *orig_node, 39 struct batadv_hard_iface *recv_if); 40 void batadv_schedule_bat_ogm(struct batadv_hard_iface *hard_iface); 41 int batadv_add_bcast_packet_to_list(struct batadv_priv *bat_priv, 42 const struct sk_buff *skb, 43 unsigned long delay); 44 void batadv_send_outstanding_bat_ogm_packet(struct work_struct *work); 45 void 46 batadv_purge_outstanding_packets(struct batadv_priv *bat_priv, 47 const struct batadv_hard_iface *hard_iface); 48 bool batadv_send_skb_prepare_unicast_4addr(struct batadv_priv *bat_priv, 49 struct sk_buff *skb, 50 struct batadv_orig_node *orig_node, 51 int packet_subtype); 52 int batadv_send_skb_unicast(struct batadv_priv *bat_priv, 53 struct sk_buff *skb, int packet_type, 54 int packet_subtype, 55 struct batadv_orig_node *orig_node, 56 unsigned short vid); 57 int batadv_send_skb_via_tt_generic(struct batadv_priv *bat_priv, 58 struct sk_buff *skb, int packet_type, 59 int packet_subtype, uint8_t *dst_hint, 60 unsigned short vid); 61 int batadv_send_skb_via_gw(struct batadv_priv *bat_priv, struct sk_buff *skb, 62 unsigned short vid); 63 64 /** 65 * batadv_send_skb_via_tt - send an skb via TT lookup 66 * @bat_priv: the bat priv with all the soft interface information 67 * @skb: the payload to send 68 * @dst_hint: can be used to override the destination contained in the skb 69 * @vid: the vid to be used to search the translation table 70 * 71 * Look up the recipient node for the destination address in the ethernet 72 * header via the translation table. Wrap the given skb into a batman-adv 73 * unicast header. Then send this frame to the according destination node. 74 * 75 * Returns NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise. 76 */ 77 static inline int batadv_send_skb_via_tt(struct batadv_priv *bat_priv, 78 struct sk_buff *skb, uint8_t *dst_hint, 79 unsigned short vid) 80 { 81 return batadv_send_skb_via_tt_generic(bat_priv, skb, BATADV_UNICAST, 0, 82 dst_hint, vid); 83 } 84 85 /** 86 * batadv_send_skb_via_tt_4addr - send an skb via TT lookup 87 * @bat_priv: the bat priv with all the soft interface information 88 * @skb: the payload to send 89 * @packet_subtype: the unicast 4addr packet subtype to use 90 * @dst_hint: can be used to override the destination contained in the skb 91 * @vid: the vid to be used to search the translation table 92 * 93 * Look up the recipient node for the destination address in the ethernet 94 * header via the translation table. Wrap the given skb into a batman-adv 95 * unicast-4addr header. Then send this frame to the according destination 96 * node. 97 * 98 * Returns NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise. 99 */ 100 static inline int batadv_send_skb_via_tt_4addr(struct batadv_priv *bat_priv, 101 struct sk_buff *skb, 102 int packet_subtype, 103 uint8_t *dst_hint, 104 unsigned short vid) 105 { 106 return batadv_send_skb_via_tt_generic(bat_priv, skb, 107 BATADV_UNICAST_4ADDR, 108 packet_subtype, dst_hint, vid); 109 } 110 111 #endif /* _NET_BATMAN_ADV_SEND_H_ */ 112