X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=include%2Fnet%2Fip_fib.h;h=8b12667f7a2bccad312fc0e63e679dfd02ec3509;hb=4ada8107f465b97326751de66d3c11ed78bf8214;hp=a4208a336ac09e58061af807e28a417f9ad1dd69;hpb=246955fe4c38bd706ae30e37c64892c94213775d;p=safe%2Fjmp%2Flinux-2.6 diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h index a4208a3..8b12667 100644 --- a/include/net/ip_fib.h +++ b/include/net/ip_fib.h @@ -16,29 +16,32 @@ #ifndef _NET_IP_FIB_H #define _NET_IP_FIB_H -#include #include #include - -/* WARNING: The ordering of these elements must match ordering - * of RTA_* rtnetlink attribute numbers. - */ -struct kern_rta { - void *rta_dst; - void *rta_src; - int *rta_iif; - int *rta_oif; - void *rta_gw; - u32 *rta_priority; - void *rta_prefsrc; - struct rtattr *rta_mx; - struct rtattr *rta_mp; - unsigned char *rta_protoinfo; - u32 *rta_flow; - struct rta_cacheinfo *rta_ci; - struct rta_session *rta_sess; - u32 *rta_mp_alg; -}; +#include + +struct fib_config { + u8 fc_dst_len; + u8 fc_tos; + u8 fc_protocol; + u8 fc_scope; + u8 fc_type; + /* 3 bytes unused */ + u32 fc_table; + __be32 fc_dst; + __be32 fc_gw; + int fc_oif; + u32 fc_flags; + u32 fc_priority; + __be32 fc_prefsrc; + struct nlattr *fc_mx; + struct rtnexthop *fc_mp; + int fc_mx_len; + int fc_mp_len; + u32 fc_flow; + u32 fc_nlflags; + struct nl_info fc_nlinfo; + }; struct fib_info; @@ -56,7 +59,7 @@ struct fib_nh { __u32 nh_tclassid; #endif int nh_oif; - u32 nh_gw; + __be32 nh_gw; }; /* @@ -66,12 +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] @@ -82,9 +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 }; @@ -99,10 +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; @@ -110,8 +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; @@ -129,11 +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)) @@ -141,24 +142,14 @@ 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 { - unsigned char tb_id; + 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 *table, struct rtmsg *r, - struct kern_rta *rta, struct nlmsghdr *n, - struct netlink_skb_parms *req); - int (*tb_delete)(struct fib_table *table, struct rtmsg *r, - struct kern_rta *rta, struct nlmsghdr *n, - struct netlink_skb_parms *req); + int (*tb_insert)(struct fib_table *, struct fib_config *); + int (*tb_delete)(struct fib_table *, struct fib_config *); int (*tb_dump)(struct fib_table *table, struct sk_buff *skb, struct netlink_callback *cb); int (*tb_flush)(struct fib_table *table); @@ -170,96 +161,73 @@ 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(int 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(int 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); -} - -#else /* CONFIG_IP_MULTIPLE_TABLES */ -#define ip_fib_local_table (fib_tables[RT_TABLE_LOCAL]) -#define ip_fib_main_table (fib_tables[RT_TABLE_MAIN]) - -extern struct fib_table * fib_tables[RT_TABLE_MAX+1]; -extern int fib_lookup(const struct flowi *flp, struct fib_result *res); -extern struct fib_table *__fib_new_table(int id); -extern void fib_rule_put(struct fib_rule *r); + struct fib_table *table; -static inline struct fib_table *fib_get_table(int id) -{ - if (id == 0) - id = RT_TABLE_MAIN; + table = fib_get_table(net, RT_TABLE_LOCAL); + if (!table->tb_lookup(table, flp, res)) + return 0; - return fib_tables[id]; + table = fib_get_table(net, RT_TABLE_MAIN); + if (!table->tb_lookup(table, flp, res)) + return 0; + return -ENETUNREACH; } -static inline struct fib_table *fib_new_table(int id) -{ - if (id == 0) - id = RT_TABLE_MAIN; +#else /* CONFIG_IP_MULTIPLE_TABLES */ +extern int __net_init fib4_rules_init(struct net *net); +extern void __net_exit fib4_rules_exit(struct net *net); - return fib_tables[id] ? : __fib_new_table(id); -} +#ifdef CONFIG_NET_CLS_ROUTE +extern u32 fib_rules_tclass(struct fib_result *res); +#endif + +extern int fib_lookup(struct net *n, struct flowi *flp, struct fib_result *res); -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 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(u32 src, u32 dst, u8 tos, int oif, - struct net_device *dev, u32 *spec_dst, u32 *itag); -extern void fib_select_multipath(const struct flowi *flp, struct fib_result *res); +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_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 int fib_convert_rtentry(int cmd, struct nlmsghdr *nl, struct rtmsg *rtm, - struct kern_rta *rta, struct rtentry *r); -extern u32 __fib_res_prefsrc(struct fib_result *res); - -/* Exported by fib_hash.c */ -extern struct fib_table *fib_hash_init(int id); +extern __be32 __fib_res_prefsrc(struct fib_result *res); +extern void fib_select_multipath(const struct flowi *flp, struct fib_result *res); -#ifdef CONFIG_IP_MULTIPLE_TABLES -/* Exported by fib_rules.c */ - -extern int inet_rtm_delrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg); -extern int inet_rtm_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg); -extern int inet_dump_rules(struct sk_buff *skb, struct netlink_callback *cb); -#ifdef CONFIG_NET_CLS_ROUTE -extern u32 fib_rules_tclass(struct fib_result *res); -#endif -extern void fib_rules_init(void); -#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) { @@ -295,4 +263,17 @@ static inline void fib_res_put(struct fib_result *res) #endif } +#ifdef CONFIG_PROC_FS +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 */