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- /* SPDX-License-Identifier: GPL-2.0 */
- /* Copyright (C) B.A.T.M.A.N. contributors:
- *
- * Marek Lindner, Simon Wunderlich
- */
- #ifndef _NET_BATMAN_ADV_SEND_H_
- #define _NET_BATMAN_ADV_SEND_H_
- #include "main.h"
- #include <linux/compiler.h>
- #include <linux/skbuff.h>
- #include <linux/spinlock.h>
- #include <linux/types.h>
- #include <uapi/linux/batadv_packet.h>
- void batadv_forw_packet_free(struct batadv_forw_packet *forw_packet,
- bool dropped);
- struct batadv_forw_packet *
- batadv_forw_packet_alloc(struct batadv_hard_iface *if_incoming,
- struct batadv_hard_iface *if_outgoing,
- atomic_t *queue_left,
- struct batadv_priv *bat_priv,
- struct sk_buff *skb);
- bool batadv_forw_packet_steal(struct batadv_forw_packet *packet, spinlock_t *l);
- void batadv_forw_packet_ogmv1_queue(struct batadv_priv *bat_priv,
- struct batadv_forw_packet *forw_packet,
- unsigned long send_time);
- bool batadv_forw_packet_is_rebroadcast(struct batadv_forw_packet *forw_packet);
- int batadv_send_skb_to_orig(struct sk_buff *skb,
- struct batadv_orig_node *orig_node,
- struct batadv_hard_iface *recv_if);
- int batadv_send_skb_packet(struct sk_buff *skb,
- struct batadv_hard_iface *hard_iface,
- const u8 *dst_addr);
- int batadv_send_broadcast_skb(struct sk_buff *skb,
- struct batadv_hard_iface *hard_iface);
- int batadv_send_unicast_skb(struct sk_buff *skb,
- struct batadv_neigh_node *neigh_node);
- int batadv_forw_bcast_packet(struct batadv_priv *bat_priv,
- struct sk_buff *skb,
- unsigned long delay,
- bool own_packet);
- void batadv_send_bcast_packet(struct batadv_priv *bat_priv,
- struct sk_buff *skb,
- unsigned long delay,
- bool own_packet);
- void
- batadv_purge_outstanding_packets(struct batadv_priv *bat_priv,
- const struct batadv_hard_iface *hard_iface);
- bool batadv_send_skb_prepare_unicast_4addr(struct batadv_priv *bat_priv,
- struct sk_buff *skb,
- struct batadv_orig_node *orig_node,
- int packet_subtype);
- int batadv_send_skb_unicast(struct batadv_priv *bat_priv,
- struct sk_buff *skb, int packet_type,
- int packet_subtype,
- struct batadv_orig_node *orig_node,
- unsigned short vid);
- int batadv_send_skb_via_tt_generic(struct batadv_priv *bat_priv,
- struct sk_buff *skb, int packet_type,
- int packet_subtype, u8 *dst_hint,
- unsigned short vid);
- int batadv_send_skb_via_gw(struct batadv_priv *bat_priv, struct sk_buff *skb,
- unsigned short vid);
- /**
- * batadv_send_skb_via_tt() - send an skb via TT lookup
- * @bat_priv: the bat priv with all the soft interface information
- * @skb: the payload to send
- * @dst_hint: can be used to override the destination contained in the skb
- * @vid: the vid to be used to search the translation table
- *
- * Look up the recipient node for the destination address in the ethernet
- * header via the translation table. Wrap the given skb into a batman-adv
- * unicast header. Then send this frame to the according destination node.
- *
- * Return: NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise.
- */
- static inline int batadv_send_skb_via_tt(struct batadv_priv *bat_priv,
- struct sk_buff *skb, u8 *dst_hint,
- unsigned short vid)
- {
- return batadv_send_skb_via_tt_generic(bat_priv, skb, BATADV_UNICAST, 0,
- dst_hint, vid);
- }
- /**
- * batadv_send_skb_via_tt_4addr() - send an skb via TT lookup
- * @bat_priv: the bat priv with all the soft interface information
- * @skb: the payload to send
- * @packet_subtype: the unicast 4addr packet subtype to use
- * @dst_hint: can be used to override the destination contained in the skb
- * @vid: the vid to be used to search the translation table
- *
- * Look up the recipient node for the destination address in the ethernet
- * header via the translation table. Wrap the given skb into a batman-adv
- * unicast-4addr header. Then send this frame to the according destination
- * node.
- *
- * Return: NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise.
- */
- static inline int batadv_send_skb_via_tt_4addr(struct batadv_priv *bat_priv,
- struct sk_buff *skb,
- int packet_subtype,
- u8 *dst_hint,
- unsigned short vid)
- {
- return batadv_send_skb_via_tt_generic(bat_priv, skb,
- BATADV_UNICAST_4ADDR,
- packet_subtype, dst_hint, vid);
- }
- #endif /* _NET_BATMAN_ADV_SEND_H_ */
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