1 files changed, 51 insertions, 34 deletions

diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index ed514bfb61ba..8b12667f7a2b 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 */