kernel/net/batman-adv/send.h

   1 /* Copyright (C) 2007-2014 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 int batadv_send_skb_packet(struct sk_buff *skb,
  22                            struct batadv_hard_iface *hard_iface,
  23                            const uint8_t *dst_addr);
  24 int batadv_send_skb_to_orig(struct sk_buff *skb,
  25                             struct batadv_orig_node *orig_node,
  26                             struct batadv_hard_iface *recv_if);
  27 void batadv_schedule_bat_ogm(struct batadv_hard_iface *hard_iface);
  28 int batadv_add_bcast_packet_to_list(struct batadv_priv *bat_priv,
  29                                     const struct sk_buff *skb,
  30                                     unsigned long delay);
  31 void batadv_send_outstanding_bat_ogm_packet(struct work_struct *work);
  32 void
  33 batadv_purge_outstanding_packets(struct batadv_priv *bat_priv,
  34                                  const struct batadv_hard_iface *hard_iface);
  35 bool batadv_send_skb_prepare_unicast_4addr(struct batadv_priv *bat_priv,
  36                                            struct sk_buff *skb,
  37                                            struct batadv_orig_node *orig_node,
  38                                            int packet_subtype);
  39 int batadv_send_skb_unicast(struct batadv_priv *bat_priv,
  40                             struct sk_buff *skb, int packet_type,
  41                             int packet_subtype,
  42                             struct batadv_orig_node *orig_node,
  43                             unsigned short vid);
  44 int batadv_send_skb_via_tt_generic(struct batadv_priv *bat_priv,
  45                                    struct sk_buff *skb, int packet_type,
  46                                    int packet_subtype, uint8_t *dst_hint,
  47                                    unsigned short vid);
  48 int batadv_send_skb_via_gw(struct batadv_priv *bat_priv, struct sk_buff *skb,
  49                            unsigned short vid);
  50
  51 /**
  52  * batadv_send_skb_via_tt - send an skb via TT lookup
  53  * @bat_priv: the bat priv with all the soft interface information
  54  * @skb: the payload to send
  55  * @dst_hint: can be used to override the destination contained in the skb
  56  * @vid: the vid to be used to search the translation table
  57  *
  58  * Look up the recipient node for the destination address in the ethernet
  59  * header via the translation table. Wrap the given skb into a batman-adv
  60  * unicast header. Then send this frame to the according destination node.
  61  *
  62  * Returns NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise.
  63  */
  64 static inline int batadv_send_skb_via_tt(struct batadv_priv *bat_priv,
  65                                          struct sk_buff *skb, uint8_t *dst_hint,
  66                                          unsigned short vid)
  67 {
  68         return batadv_send_skb_via_tt_generic(bat_priv, skb, BATADV_UNICAST, 0,
  69                                               dst_hint, vid);
  70 }
  71
  72 /**
  73  * batadv_send_skb_via_tt_4addr - send an skb via TT lookup
  74  * @bat_priv: the bat priv with all the soft interface information
  75  * @skb: the payload to send
  76  * @packet_subtype: the unicast 4addr packet subtype to use
  77  * @dst_hint: can be used to override the destination contained in the skb
  78  * @vid: the vid to be used to search the translation table
  79  *
  80  * Look up the recipient node for the destination address in the ethernet
  81  * header via the translation table. Wrap the given skb into a batman-adv
  82  * unicast-4addr header. Then send this frame to the according destination
  83  * node.
  84  *
  85  * Returns NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise.
  86  */
  87 static inline int batadv_send_skb_via_tt_4addr(struct batadv_priv *bat_priv,
  88                                                struct sk_buff *skb,
  89                                                int packet_subtype,
  90                                                uint8_t *dst_hint,
  91                                                unsigned short vid)
  92 {
  93         return batadv_send_skb_via_tt_generic(bat_priv, skb,
  94                                               BATADV_UNICAST_4ADDR,
  95                                               packet_subtype, dst_hint, vid);
  96 }
  97
  98 #endif /* _NET_BATMAN_ADV_SEND_H_ */