diff options
Diffstat (limited to 'include/net/ip_fib.h')
| -rw-r--r-- | include/net/ip_fib.h | 85 |
1 files changed, 51 insertions, 34 deletions
diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h index ed514bfb61b..8b12667f7a2 100644 --- a/include/net/ip_fib.h +++ b/include/net/ip_fib.h @@ -69,6 +69,7 @@ struct fib_nh { struct fib_info { struct hlist_node fib_hash; struct hlist_node fib_lhash; + struct net *fib_net; int fib_treeref; atomic_t fib_clntref; int fib_dead; @@ -125,11 +126,15 @@ struct fib_result_nl { #define FIB_RES_NH(res) ((res).fi->fib_nh[(res).nh_sel]) #define FIB_RES_RESET(res) ((res).nh_sel = 0) +#define FIB_TABLE_HASHSZ 2 + #else /* CONFIG_IP_ROUTE_MULTIPATH */ #define FIB_RES_NH(res) ((res).fi->fib_nh[0]) #define FIB_RES_RESET(res) +#define FIB_TABLE_HASHSZ 256 + #endif /* CONFIG_IP_ROUTE_MULTIPATH */ #define FIB_RES_PREFSRC(res) ((res).fi->fib_prefsrc ? : __fib_res_prefsrc(&res)) @@ -141,6 +146,7 @@ struct fib_table { struct hlist_node tb_hlist; u32 tb_id; unsigned tb_stamp; + int tb_default; int (*tb_lookup)(struct fib_table *tb, const struct flowi *flp, struct fib_result *res); int (*tb_insert)(struct fib_table *, struct fib_config *); int (*tb_delete)(struct fib_table *, struct fib_config *); @@ -155,50 +161,51 @@ struct fib_table { #ifndef CONFIG_IP_MULTIPLE_TABLES -extern struct fib_table *ip_fib_local_table; -extern struct fib_table *ip_fib_main_table; +#define TABLE_LOCAL_INDEX 0 +#define TABLE_MAIN_INDEX 1 -static inline struct fib_table *fib_get_table(u32 id) +static inline struct fib_table *fib_get_table(struct net *net, u32 id) { - if (id != RT_TABLE_LOCAL) - return ip_fib_main_table; - return ip_fib_local_table; -} + struct hlist_head *ptr; -static inline struct fib_table *fib_new_table(u32 id) -{ - return fib_get_table(id); + ptr = id == RT_TABLE_LOCAL ? + &net->ipv4.fib_table_hash[TABLE_LOCAL_INDEX] : + &net->ipv4.fib_table_hash[TABLE_MAIN_INDEX]; + return hlist_entry(ptr->first, struct fib_table, tb_hlist); } -static inline int fib_lookup(const struct flowi *flp, struct fib_result *res) +static inline struct fib_table *fib_new_table(struct net *net, u32 id) { - if (ip_fib_local_table->tb_lookup(ip_fib_local_table, flp, res) && - ip_fib_main_table->tb_lookup(ip_fib_main_table, flp, res)) - return -ENETUNREACH; - return 0; + return fib_get_table(net, id); } -static inline void fib_select_default(const struct flowi *flp, struct fib_result *res) +static inline int fib_lookup(struct net *net, const struct flowi *flp, + struct fib_result *res) { - if (FIB_RES_GW(*res) && FIB_RES_NH(*res).nh_scope == RT_SCOPE_LINK) - ip_fib_main_table->tb_select_default(ip_fib_main_table, flp, res); + struct fib_table *table; + + table = fib_get_table(net, RT_TABLE_LOCAL); + if (!table->tb_lookup(table, flp, res)) + return 0; + + table = fib_get_table(net, RT_TABLE_MAIN); + if (!table->tb_lookup(table, flp, res)) + return 0; + return -ENETUNREACH; } #else /* CONFIG_IP_MULTIPLE_TABLES */ -extern void __init fib4_rules_init(void); +extern int __net_init fib4_rules_init(struct net *net); +extern void __net_exit fib4_rules_exit(struct net *net); #ifdef CONFIG_NET_CLS_ROUTE extern u32 fib_rules_tclass(struct fib_result *res); #endif -#define ip_fib_local_table fib_get_table(RT_TABLE_LOCAL) -#define ip_fib_main_table fib_get_table(RT_TABLE_MAIN) - -extern int fib_lookup(struct flowi *flp, struct fib_result *res); +extern int fib_lookup(struct net *n, struct flowi *flp, struct fib_result *res); -extern struct fib_table *fib_new_table(u32 id); -extern struct fib_table *fib_get_table(u32 id); -extern void fib_select_default(const struct flowi *flp, struct fib_result *res); +extern struct fib_table *fib_new_table(struct net *net, u32 id); +extern struct fib_table *fib_get_table(struct net *net, u32 id); #endif /* CONFIG_IP_MULTIPLE_TABLES */ @@ -207,18 +214,20 @@ extern const struct nla_policy rtm_ipv4_policy[]; extern void ip_fib_init(void); extern int fib_validate_source(__be32 src, __be32 dst, u8 tos, int oif, struct net_device *dev, __be32 *spec_dst, u32 *itag); -extern void fib_select_multipath(const struct flowi *flp, struct fib_result *res); - -struct rtentry; +extern void fib_select_default(struct net *net, const struct flowi *flp, + struct fib_result *res); /* Exported by fib_semantics.c */ extern int ip_fib_check_default(__be32 gw, struct net_device *dev); -extern int fib_sync_down(__be32 local, struct net_device *dev, int force); +extern int fib_sync_down_dev(struct net_device *dev, int force); +extern int fib_sync_down_addr(struct net *net, __be32 local); extern int fib_sync_up(struct net_device *dev); extern __be32 __fib_res_prefsrc(struct fib_result *res); +extern void fib_select_multipath(const struct flowi *flp, struct fib_result *res); -/* Exported by fib_hash.c */ -extern struct fib_table *fib_hash_init(u32 id); +/* Exported by fib_{hash|trie}.c */ +extern void fib_hash_init(void); +extern struct fib_table *fib_hash_table(u32 id); static inline void fib_combine_itag(u32 *itag, struct fib_result *res) { @@ -255,8 +264,16 @@ static inline void fib_res_put(struct fib_result *res) } #ifdef CONFIG_PROC_FS -extern int fib_proc_init(void); -extern void fib_proc_exit(void); +extern int __net_init fib_proc_init(struct net *net); +extern void __net_exit fib_proc_exit(struct net *net); +#else +static inline int fib_proc_init(struct net *net) +{ + return 0; +} +static inline void fib_proc_exit(struct net *net) +{ +} #endif #endif /* _NET_FIB_H */ |