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TOMOYO Linux Cross Reference
Linux/include/linux/if_bridge.h

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  1 /*
  2  *      Linux ethernet bridge
  3  *
  4  *      Authors:
  5  *      Lennert Buytenhek               <buytenh@gnu.org>
  6  *
  7  *      This program is free software; you can redistribute it and/or
  8  *      modify it under the terms of the GNU General Public License
  9  *      as published by the Free Software Foundation; either version
 10  *      2 of the License, or (at your option) any later version.
 11  */
 12 #ifndef _LINUX_IF_BRIDGE_H
 13 #define _LINUX_IF_BRIDGE_H
 14 
 15 
 16 #include <linux/netdevice.h>
 17 #include <uapi/linux/if_bridge.h>
 18 #include <linux/bitops.h>
 19 
 20 struct br_ip {
 21         union {
 22                 __be32  ip4;
 23 #if IS_ENABLED(CONFIG_IPV6)
 24                 struct in6_addr ip6;
 25 #endif
 26         } u;
 27         __be16          proto;
 28         __u16           vid;
 29 };
 30 
 31 struct br_ip_list {
 32         struct list_head list;
 33         struct br_ip addr;
 34 };
 35 
 36 #define BR_HAIRPIN_MODE         BIT(0)
 37 #define BR_BPDU_GUARD           BIT(1)
 38 #define BR_ROOT_BLOCK           BIT(2)
 39 #define BR_MULTICAST_FAST_LEAVE BIT(3)
 40 #define BR_ADMIN_COST           BIT(4)
 41 #define BR_LEARNING             BIT(5)
 42 #define BR_FLOOD                BIT(6)
 43 #define BR_AUTO_MASK            (BR_FLOOD | BR_LEARNING)
 44 #define BR_PROMISC              BIT(7)
 45 #define BR_PROXYARP             BIT(8)
 46 #define BR_LEARNING_SYNC        BIT(9)
 47 #define BR_PROXYARP_WIFI        BIT(10)
 48 
 49 #define BR_DEFAULT_AGEING_TIME  (300 * HZ)
 50 
 51 extern void brioctl_set(int (*ioctl_hook)(struct net *, unsigned int, void __user *));
 52 
 53 typedef int br_should_route_hook_t(struct sk_buff *skb);
 54 extern br_should_route_hook_t __rcu *br_should_route_hook;
 55 
 56 #if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING)
 57 int br_multicast_list_adjacent(struct net_device *dev,
 58                                struct list_head *br_ip_list);
 59 bool br_multicast_has_querier_anywhere(struct net_device *dev, int proto);
 60 bool br_multicast_has_querier_adjacent(struct net_device *dev, int proto);
 61 #else
 62 static inline int br_multicast_list_adjacent(struct net_device *dev,
 63                                              struct list_head *br_ip_list)
 64 {
 65         return 0;
 66 }
 67 static inline bool br_multicast_has_querier_anywhere(struct net_device *dev,
 68                                                      int proto)
 69 {
 70         return false;
 71 }
 72 static inline bool br_multicast_has_querier_adjacent(struct net_device *dev,
 73                                                      int proto)
 74 {
 75         return false;
 76 }
 77 #endif
 78 
 79 #endif
 80 

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