diff options
Diffstat (limited to 'ANDROID_3.4.5/include/net/ip_fib.h')
| -rw-r--r-- | ANDROID_3.4.5/include/net/ip_fib.h | 285 |
1 files changed, 0 insertions, 285 deletions
diff --git a/ANDROID_3.4.5/include/net/ip_fib.h b/ANDROID_3.4.5/include/net/ip_fib.h deleted file mode 100644 index 10422ef1..00000000 --- a/ANDROID_3.4.5/include/net/ip_fib.h +++ /dev/null @@ -1,285 +0,0 @@ -/* - * INET An implementation of the TCP/IP protocol suite for the LINUX - * operating system. INET is implemented using the BSD Socket - * interface as the means of communication with the user level. - * - * Definitions for the Forwarding Information Base. - * - * Authors: A.N.Kuznetsov, <kuznet@ms2.inr.ac.ru> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#ifndef _NET_IP_FIB_H -#define _NET_IP_FIB_H - -#include <net/flow.h> -#include <linux/seq_file.h> -#include <net/fib_rules.h> - -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; - -struct fib_nh { - struct net_device *nh_dev; - struct hlist_node nh_hash; - struct fib_info *nh_parent; - unsigned nh_flags; - unsigned char nh_scope; -#ifdef CONFIG_IP_ROUTE_MULTIPATH - int nh_weight; - int nh_power; -#endif -#ifdef CONFIG_IP_ROUTE_CLASSID - __u32 nh_tclassid; -#endif - int nh_oif; - __be32 nh_gw; - __be32 nh_saddr; - int nh_saddr_genid; -}; - -/* - * This structure contains data shared by many of routes. - */ - -struct fib_info { - struct hlist_node fib_hash; - struct hlist_node fib_lhash; - struct net *fib_net; - int fib_treeref; - atomic_t fib_clntref; - unsigned fib_flags; - unsigned char fib_dead; - unsigned char fib_protocol; - unsigned char fib_scope; - __be32 fib_prefsrc; - u32 fib_priority; - u32 *fib_metrics; -#define fib_mtu fib_metrics[RTAX_MTU-1] -#define fib_window fib_metrics[RTAX_WINDOW-1] -#define fib_rtt fib_metrics[RTAX_RTT-1] -#define fib_advmss fib_metrics[RTAX_ADVMSS-1] - int fib_nhs; -#ifdef CONFIG_IP_ROUTE_MULTIPATH - int fib_power; -#endif - struct rcu_head rcu; - struct fib_nh fib_nh[0]; -#define fib_dev fib_nh[0].nh_dev -}; - - -#ifdef CONFIG_IP_MULTIPLE_TABLES -struct fib_rule; -#endif - -struct fib_table; -struct fib_result { - unsigned char prefixlen; - unsigned char nh_sel; - unsigned char type; - unsigned char scope; - struct fib_info *fi; - struct fib_table *table; - struct list_head *fa_head; -#ifdef CONFIG_IP_MULTIPLE_TABLES - struct fib_rule *r; -#endif -}; - -struct fib_result_nl { - __be32 fl_addr; /* To be looked up*/ - u32 fl_mark; - unsigned char fl_tos; - unsigned char fl_scope; - unsigned char tb_id_in; - - unsigned char tb_id; /* Results */ - unsigned char prefixlen; - unsigned char nh_sel; - unsigned char type; - unsigned char scope; - int err; -}; - -#ifdef CONFIG_IP_ROUTE_MULTIPATH - -#define FIB_RES_NH(res) ((res).fi->fib_nh[(res).nh_sel]) - -#define FIB_TABLE_HASHSZ 2 - -#else /* CONFIG_IP_ROUTE_MULTIPATH */ - -#define FIB_RES_NH(res) ((res).fi->fib_nh[0]) - -#define FIB_TABLE_HASHSZ 256 - -#endif /* CONFIG_IP_ROUTE_MULTIPATH */ - -extern __be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh); - -#define FIB_RES_SADDR(net, res) \ - ((FIB_RES_NH(res).nh_saddr_genid == \ - atomic_read(&(net)->ipv4.dev_addr_genid)) ? \ - FIB_RES_NH(res).nh_saddr : \ - fib_info_update_nh_saddr((net), &FIB_RES_NH(res))) -#define FIB_RES_GW(res) (FIB_RES_NH(res).nh_gw) -#define FIB_RES_DEV(res) (FIB_RES_NH(res).nh_dev) -#define FIB_RES_OIF(res) (FIB_RES_NH(res).nh_oif) - -#define FIB_RES_PREFSRC(net, res) ((res).fi->fib_prefsrc ? : \ - FIB_RES_SADDR(net, res)) - -struct fib_table { - struct hlist_node tb_hlist; - u32 tb_id; - int tb_default; - int tb_num_default; - unsigned long tb_data[0]; -}; - -extern int fib_table_lookup(struct fib_table *tb, const struct flowi4 *flp, - struct fib_result *res, int fib_flags); -extern int fib_table_insert(struct fib_table *, struct fib_config *); -extern int fib_table_delete(struct fib_table *, struct fib_config *); -extern int fib_table_dump(struct fib_table *table, struct sk_buff *skb, - struct netlink_callback *cb); -extern int fib_table_flush(struct fib_table *table); -extern void fib_free_table(struct fib_table *tb); - - - -#ifndef CONFIG_IP_MULTIPLE_TABLES - -#define TABLE_LOCAL_INDEX 0 -#define TABLE_MAIN_INDEX 1 - -static inline struct fib_table *fib_get_table(struct net *net, u32 id) -{ - struct hlist_head *ptr; - - 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 struct fib_table *fib_new_table(struct net *net, u32 id) -{ - return fib_get_table(net, id); -} - -static inline int fib_lookup(struct net *net, const struct flowi4 *flp, - struct fib_result *res) -{ - struct fib_table *table; - - table = fib_get_table(net, RT_TABLE_LOCAL); - if (!fib_table_lookup(table, flp, res, FIB_LOOKUP_NOREF)) - return 0; - - table = fib_get_table(net, RT_TABLE_MAIN); - if (!fib_table_lookup(table, flp, res, FIB_LOOKUP_NOREF)) - return 0; - return -ENETUNREACH; -} - -#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); - -#ifdef CONFIG_IP_ROUTE_CLASSID -extern u32 fib_rules_tclass(const struct fib_result *res); -#endif - -extern int fib_lookup(struct net *n, struct flowi4 *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 fib_validate_source(struct sk_buff *skb, __be32 src, __be32 dst, - u8 tos, int oif, struct net_device *dev, - __be32 *spec_dst, u32 *itag); -extern void fib_select_default(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_dev(struct net_device *dev, int force); -extern int fib_sync_down_addr(struct net *net, __be32 local); -extern void fib_update_nh_saddrs(struct net_device *dev); -extern int fib_sync_up(struct net_device *dev); -extern void fib_select_multipath(struct fib_result *res); - -/* Exported by fib_trie.c */ -extern void fib_trie_init(void); -extern struct fib_table *fib_trie_table(u32 id); - -static inline void fib_combine_itag(u32 *itag, const struct fib_result *res) -{ -#ifdef CONFIG_IP_ROUTE_CLASSID -#ifdef CONFIG_IP_MULTIPLE_TABLES - u32 rtag; -#endif - *itag = FIB_RES_NH(*res).nh_tclassid<<16; -#ifdef CONFIG_IP_MULTIPLE_TABLES - rtag = fib_rules_tclass(res); - if (*itag == 0) - *itag = (rtag<<16); - *itag |= (rtag>>16); -#endif -#endif -} - -extern void free_fib_info(struct fib_info *fi); - -static inline void fib_info_put(struct fib_info *fi) -{ - if (atomic_dec_and_test(&fi->fib_clntref)) - free_fib_info(fi); -} - -#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 */ |