diff options
Diffstat (limited to 'include/net/nexthop.h')
| -rw-r--r-- | include/net/nexthop.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/include/net/nexthop.h b/include/net/nexthop.h index 8c9f1a718859..e4b55b43e907 100644 --- a/include/net/nexthop.h +++ b/include/net/nexthop.h @@ -10,6 +10,7 @@ #define __LINUX_NEXTHOP_H #include <linux/netdevice.h> +#include <linux/notifier.h> #include <linux/route.h> #include <linux/types.h> #include <net/ip_fib.h> @@ -26,6 +27,7 @@ struct nh_config { u8 nh_family; u8 nh_protocol; u8 nh_blackhole; + u8 nh_fdb; u32 nh_flags; int nh_ifindex; @@ -52,6 +54,7 @@ struct nh_info { u8 family; bool reject_nh; + bool fdb_nh; union { struct fib_nh_common fib_nhc; @@ -81,6 +84,7 @@ struct nexthop { struct rb_node rb_node; /* entry on netns rbtree */ struct list_head fi_list; /* v4 entries using nh */ struct list_head f6i_list; /* v6 entries using nh */ + struct list_head fdb_list; /* fdb entries using this nh */ struct list_head grp_list; /* nh group entries using this nh */ struct net *net; @@ -89,6 +93,7 @@ struct nexthop { u8 protocol; /* app managing this nh */ u8 nh_flags; bool is_group; + bool is_fdb_nh; refcount_t refcnt; struct rcu_head rcu; @@ -99,6 +104,17 @@ struct nexthop { }; }; +enum nexthop_event_type { + NEXTHOP_EVENT_ADD, + NEXTHOP_EVENT_DEL +}; + +int call_nexthop_notifier(struct notifier_block *nb, struct net *net, + enum nexthop_event_type event_type, + struct nexthop *nh); +int register_nexthop_notifier(struct net *net, struct notifier_block *nb); +int unregister_nexthop_notifier(struct net *net, struct notifier_block *nb); + /* caller is holding rcu or rtnl; no reference taken to nexthop */ struct nexthop *nexthop_find_by_id(struct net *net, u32 id); void nexthop_free_rcu(struct rcu_head *head); @@ -372,4 +388,32 @@ static inline void nexthop_path_fib6_result(struct fib6_result *res, int hash) int nexthop_for_each_fib6_nh(struct nexthop *nh, int (*cb)(struct fib6_nh *nh, void *arg), void *arg); + +static inline int nexthop_get_family(struct nexthop *nh) +{ + struct nh_info *nhi = rcu_dereference_rtnl(nh->nh_info); + + return nhi->family; +} + +static inline +struct fib_nh_common *nexthop_fdb_nhc(struct nexthop *nh) +{ + struct nh_info *nhi = rcu_dereference_rtnl(nh->nh_info); + + return &nhi->fib_nhc; +} + +static inline struct fib_nh_common *nexthop_path_fdb_result(struct nexthop *nh, + int hash) +{ + struct nh_info *nhi; + struct nexthop *nhp; + + nhp = nexthop_select_path(nh, hash); + if (unlikely(!nhp)) + return NULL; + nhi = rcu_dereference(nhp->nh_info); + return &nhi->fib_nhc; +} #endif |