X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=include%2Fnet%2Fip_fib.h;h=ef91fe924ba42ddf5a0748836726098ec2a95f9a;hb=458adb8ba9b26bfc66593866013adbb62a1a3d2e;hp=9f84e9fc1b1f56f29b04a983e58d07f418adb034;hpb=ed49e3caaa6126f8e29f08e8b4fdcafcae431b57;p=safe%2Fjmp%2Flinux-2.6 diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h index 9f84e9f..ef91fe9 100644 --- a/include/net/ip_fib.h +++ b/include/net/ip_fib.h @@ -21,28 +21,24 @@ #include struct fib_config { - u8 fc_family; u8 fc_dst_len; - u8 fc_src_len; u8 fc_tos; u8 fc_protocol; u8 fc_scope; u8 fc_type; - /* 1 byte unused */ + /* 3 bytes unused */ u32 fc_table; - u32 fc_dst; - u32 fc_src; - u32 fc_gw; + __be32 fc_dst; + __be32 fc_gw; int fc_oif; u32 fc_flags; u32 fc_priority; - u32 fc_prefsrc; + __be32 fc_prefsrc; struct nlattr *fc_mx; struct rtnexthop *fc_mp; int fc_mx_len; int fc_mp_len; u32 fc_flow; - u32 fc_mp_alg; u32 fc_nlflags; struct nl_info fc_nlinfo; }; @@ -73,12 +69,13 @@ 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; unsigned fib_flags; int fib_protocol; - u32 fib_prefsrc; + __be32 fib_prefsrc; u32 fib_priority; u32 fib_metrics[RTAX_MAX]; #define fib_mtu fib_metrics[RTAX_MTU-1] @@ -89,9 +86,6 @@ struct fib_info { #ifdef CONFIG_IP_ROUTE_MULTIPATH int fib_power; #endif -#ifdef CONFIG_IP_ROUTE_MULTIPATH_CACHED - u32 fib_mp_alg; -#endif struct fib_nh fib_nh[0]; #define fib_dev fib_nh[0].nh_dev }; @@ -106,10 +100,6 @@ struct fib_result { unsigned char nh_sel; unsigned char type; unsigned char scope; -#ifdef CONFIG_IP_ROUTE_MULTIPATH_CACHED - __u32 network; - __u32 netmask; -#endif struct fib_info *fi; #ifdef CONFIG_IP_MULTIPLE_TABLES struct fib_rule *r; @@ -117,8 +107,8 @@ struct fib_result { }; struct fib_result_nl { - u32 fl_addr; /* To be looked up*/ - u32 fl_fwmark; + __be32 fl_addr; /* To be looked up*/ + u32 fl_mark; unsigned char fl_tos; unsigned char fl_scope; unsigned char tb_id_in; @@ -134,12 +124,14 @@ struct fib_result_nl { #ifdef CONFIG_IP_ROUTE_MULTIPATH #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 */ @@ -148,18 +140,10 @@ struct fib_result_nl { #define FIB_RES_DEV(res) (FIB_RES_NH(res).nh_dev) #define FIB_RES_OIF(res) (FIB_RES_NH(res).nh_oif) -#ifdef CONFIG_IP_ROUTE_MULTIPATH_CACHED -#define FIB_RES_NETWORK(res) ((res).network) -#define FIB_RES_NETMASK(res) ((res).netmask) -#else /* CONFIG_IP_ROUTE_MULTIPATH_CACHED */ -#define FIB_RES_NETWORK(res) (0) -#define FIB_RES_NETMASK(res) (0) -#endif /* CONFIG_IP_ROUTE_MULTIPATH_WRANDOM */ - 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 *); @@ -174,79 +158,73 @@ 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 */ -#define ip_fib_local_table fib_get_table(RT_TABLE_LOCAL) -#define ip_fib_main_table fib_get_table(RT_TABLE_MAIN) +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 -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 */ /* Exported by fib_frontend.c */ -extern struct nla_policy rtm_ipv4_policy[]; +extern const struct nla_policy rtm_ipv4_policy[]; extern void ip_fib_init(void); -extern int inet_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg); -extern int inet_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg); -extern int inet_rtm_getroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg); -extern int inet_dump_fib(struct sk_buff *skb, struct netlink_callback *cb); 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(u32 gw, struct net_device *dev); -extern int fib_sync_down(u32 local, struct net_device *dev, int force); +extern int ip_fib_check_default(__be32 gw, struct net_device *dev); +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 u32 __fib_res_prefsrc(struct fib_result *res); - -/* Exported by fib_hash.c */ -extern struct fib_table *fib_hash_init(u32 id); - -#ifdef CONFIG_IP_MULTIPLE_TABLES -extern int fib4_rules_dump(struct sk_buff *skb, struct netlink_callback *cb); - -extern void __init fib4_rules_init(void); - -#ifdef CONFIG_NET_CLS_ROUTE -extern u32 fib_rules_tclass(struct fib_result *res); -#endif +extern __be32 __fib_res_prefsrc(struct fib_result *res); +extern void fib_select_multipath(const struct flowi *flp, struct fib_result *res); -#endif +/* 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) { @@ -283,8 +261,16 @@ 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 */