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121 lines
2.8 KiB
121 lines
2.8 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* Copyright (C) B.A.T.M.A.N. contributors: |
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* |
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* Linus Lüssing |
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*/ |
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#ifndef _NET_BATMAN_ADV_MULTICAST_H_ |
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#define _NET_BATMAN_ADV_MULTICAST_H_ |
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#include "main.h" |
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#include <linux/netlink.h> |
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#include <linux/skbuff.h> |
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/** |
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* enum batadv_forw_mode - the way a packet should be forwarded as |
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*/ |
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enum batadv_forw_mode { |
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/** |
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* @BATADV_FORW_ALL: forward the packet to all nodes (currently via |
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* classic flooding) |
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*/ |
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BATADV_FORW_ALL, |
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/** |
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* @BATADV_FORW_SOME: forward the packet to some nodes (currently via |
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* a multicast-to-unicast conversion and the BATMAN unicast routing |
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* protocol) |
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*/ |
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BATADV_FORW_SOME, |
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/** |
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* @BATADV_FORW_SINGLE: forward the packet to a single node (currently |
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* via the BATMAN unicast routing protocol) |
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*/ |
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BATADV_FORW_SINGLE, |
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/** @BATADV_FORW_NONE: don't forward, drop it */ |
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BATADV_FORW_NONE, |
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}; |
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#ifdef CONFIG_BATMAN_ADV_MCAST |
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enum batadv_forw_mode |
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batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb, |
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struct batadv_orig_node **mcast_single_orig); |
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int batadv_mcast_forw_send_orig(struct batadv_priv *bat_priv, |
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struct sk_buff *skb, |
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unsigned short vid, |
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struct batadv_orig_node *orig_node); |
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int batadv_mcast_forw_send(struct batadv_priv *bat_priv, struct sk_buff *skb, |
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unsigned short vid); |
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void batadv_mcast_init(struct batadv_priv *bat_priv); |
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int batadv_mcast_mesh_info_put(struct sk_buff *msg, |
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struct batadv_priv *bat_priv); |
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int batadv_mcast_flags_dump(struct sk_buff *msg, struct netlink_callback *cb); |
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void batadv_mcast_free(struct batadv_priv *bat_priv); |
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void batadv_mcast_purge_orig(struct batadv_orig_node *orig_node); |
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#else |
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static inline enum batadv_forw_mode |
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batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb, |
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struct batadv_orig_node **mcast_single_orig) |
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{ |
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return BATADV_FORW_ALL; |
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} |
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static inline int |
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batadv_mcast_forw_send_orig(struct batadv_priv *bat_priv, |
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struct sk_buff *skb, |
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unsigned short vid, |
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struct batadv_orig_node *orig_node) |
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{ |
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kfree_skb(skb); |
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return NET_XMIT_DROP; |
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} |
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static inline int |
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batadv_mcast_forw_send(struct batadv_priv *bat_priv, struct sk_buff *skb, |
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unsigned short vid) |
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{ |
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kfree_skb(skb); |
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return NET_XMIT_DROP; |
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} |
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static inline int batadv_mcast_init(struct batadv_priv *bat_priv) |
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{ |
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return 0; |
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} |
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static inline int |
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batadv_mcast_mesh_info_put(struct sk_buff *msg, struct batadv_priv *bat_priv) |
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{ |
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return 0; |
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} |
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static inline int batadv_mcast_flags_dump(struct sk_buff *msg, |
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struct netlink_callback *cb) |
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{ |
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return -EOPNOTSUPP; |
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} |
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static inline void batadv_mcast_free(struct batadv_priv *bat_priv) |
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{ |
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} |
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static inline void batadv_mcast_purge_orig(struct batadv_orig_node *orig_node) |
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{ |
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} |
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#endif /* CONFIG_BATMAN_ADV_MCAST */ |
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#endif /* _NET_BATMAN_ADV_MULTICAST_H_ */
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