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net/batman-adv/bridge_loop_avoidance.h
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/* SPDX-License-Identifier: GPL-2.0 */ |
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/* Copyright (C) 2011-2020 B.A.T.M.A.N. contributors: |
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* * Simon Wunderlich |
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*/ #ifndef _NET_BATMAN_ADV_BLA_H_ #define _NET_BATMAN_ADV_BLA_H_ |
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#include "main.h" |
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#include <linux/compiler.h> |
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#include <linux/netdevice.h> #include <linux/netlink.h> #include <linux/seq_file.h> #include <linux/skbuff.h> |
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#include <linux/stddef.h> |
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#include <linux/types.h> |
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/** |
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* batadv_bla_is_loopdetect_mac() - check if the mac address is from a loop * detect frame sent by bridge loop avoidance |
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* @mac: mac address to check * * Return: true if the it looks like a loop detect frame * (mac starts with BA:BE), false otherwise */ static inline bool batadv_bla_is_loopdetect_mac(const uint8_t *mac) { if (mac[0] == 0xba && mac[1] == 0xbe) return true; return false; } |
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#ifdef CONFIG_BATMAN_ADV_BLA |
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bool batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb, |
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unsigned short vid, int packet_type); |
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bool batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb, unsigned short vid); bool batadv_bla_is_backbone_gw(struct sk_buff *skb, struct batadv_orig_node *orig_node, int hdr_size); |
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int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, void *offset); |
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int batadv_bla_claim_dump(struct sk_buff *msg, struct netlink_callback *cb); |
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int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq, void *offset); |
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int batadv_bla_backbone_dump(struct sk_buff *msg, struct netlink_callback *cb); |
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bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, u8 *orig, |
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unsigned short vid); |
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bool batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv, struct sk_buff *skb); |
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void batadv_bla_update_orig_address(struct batadv_priv *bat_priv, struct batadv_hard_iface *primary_if, struct batadv_hard_iface *oldif); |
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void batadv_bla_status_update(struct net_device *net_dev); |
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int batadv_bla_init(struct batadv_priv *bat_priv); void batadv_bla_free(struct batadv_priv *bat_priv); |
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int batadv_bla_claim_dump(struct sk_buff *msg, struct netlink_callback *cb); |
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#ifdef CONFIG_BATMAN_ADV_DAT bool batadv_bla_check_claim(struct batadv_priv *bat_priv, u8 *addr, unsigned short vid); #endif |
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#define BATADV_BLA_CRC_INIT 0 |
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#else /* ifdef CONFIG_BATMAN_ADV_BLA */ |
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static inline bool batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb, unsigned short vid, |
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int packet_type) |
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{ |
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return false; |
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} |
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static inline bool batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb, unsigned short vid) |
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{ |
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return false; |
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} |
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static inline bool batadv_bla_is_backbone_gw(struct sk_buff *skb, struct batadv_orig_node *orig_node, int hdr_size) |
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{ |
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return false; |
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} |
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static inline int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, void *offset) |
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{ return 0; } |
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static inline int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq, void *offset) { return 0; } |
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static inline bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, |
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u8 *orig, unsigned short vid) |
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{ |
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return false; |
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} |
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static inline bool |
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batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv, |
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struct sk_buff *skb) |
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{ |
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return false; |
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} |
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static inline void |
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batadv_bla_update_orig_address(struct batadv_priv *bat_priv, struct batadv_hard_iface *primary_if, struct batadv_hard_iface *oldif) |
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{ } |
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static inline int batadv_bla_init(struct batadv_priv *bat_priv) |
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{ return 1; } |
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static inline void batadv_bla_free(struct batadv_priv *bat_priv) |
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{ } |
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static inline int batadv_bla_claim_dump(struct sk_buff *msg, struct netlink_callback *cb) { return -EOPNOTSUPP; } |
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static inline int batadv_bla_backbone_dump(struct sk_buff *msg, struct netlink_callback *cb) { return -EOPNOTSUPP; } |
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static inline bool batadv_bla_check_claim(struct batadv_priv *bat_priv, u8 *addr, unsigned short vid) { return true; } |
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#endif /* ifdef CONFIG_BATMAN_ADV_BLA */ |
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#endif /* ifndef _NET_BATMAN_ADV_BLA_H_ */ |