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Diffstat (limited to '')
| -rw-r--r-- | net/batman-adv/send.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/net/batman-adv/send.h b/net/batman-adv/send.h new file mode 100644 index 000000000..0d36e1558 --- /dev/null +++ b/net/batman-adv/send.h @@ -0,0 +1,112 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2007-2020 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_add_bcast_packet_to_list(struct batadv_priv *bat_priv, + const 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_ */ |