net/batman-adv/send.h

   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_ */