1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 21da177e4SLinus Torvalds #ifndef _FIB_LOOKUP_H 31da177e4SLinus Torvalds #define _FIB_LOOKUP_H 41da177e4SLinus Torvalds 51da177e4SLinus Torvalds #include <linux/types.h> 61da177e4SLinus Torvalds #include <linux/list.h> 71da177e4SLinus Torvalds #include <net/ip_fib.h> 85481d73fSDavid Ahern #include <net/nexthop.h> 91da177e4SLinus Torvalds 101da177e4SLinus Torvalds struct fib_alias { 1156315f9eSAlexander Duyck struct hlist_node fa_list; 121da177e4SLinus Torvalds struct fib_info *fa_info; 131da177e4SLinus Torvalds u8 fa_tos; 141da177e4SLinus Torvalds u8 fa_type; 151da177e4SLinus Torvalds u8 fa_state; 169b6ebad5SAlexander Duyck u8 fa_slen; 170ddcf43dSAlexander Duyck u32 tb_id; 182392debcSJulian Anastasov s16 fa_default; 1990b93f1bSIdo Schimmel u8 offload:1, 2090b93f1bSIdo Schimmel trap:1, 2190b93f1bSIdo Schimmel unused:6; 22a6501e08SEric Dumazet struct rcu_head rcu; 231da177e4SLinus Torvalds }; 241da177e4SLinus Torvalds 251da177e4SLinus Torvalds #define FA_S_ACCESSED 0x01 261da177e4SLinus Torvalds 279b0c290eSEric Dumazet /* Dont write on fa_state unless needed, to keep it shared on all cpus */ 289b0c290eSEric Dumazet static inline void fib_alias_accessed(struct fib_alias *fa) 299b0c290eSEric Dumazet { 309b0c290eSEric Dumazet if (!(fa->fa_state & FA_S_ACCESSED)) 319b0c290eSEric Dumazet fa->fa_state |= FA_S_ACCESSED; 329b0c290eSEric Dumazet } 339b0c290eSEric Dumazet 341da177e4SLinus Torvalds /* Exported by fib_semantics.c */ 357e58487bSJoe Perches void fib_release_info(struct fib_info *); 366d8422a1SDavid Ahern struct fib_info *fib_create_info(struct fib_config *cfg, 376d8422a1SDavid Ahern struct netlink_ext_ack *extack); 38faee6769SAlexander Aring int fib_nh_match(struct net *net, struct fib_config *cfg, struct fib_info *fi, 399ae28727SDavid Ahern struct netlink_ext_ack *extack); 405f9ae3d9SXin Long bool fib_metrics_match(struct fib_config *cfg, struct fib_info *fi); 411e301fd0SIdo Schimmel int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event, 42*08554789SAmit Cohen const struct fib_rt_info *fri, unsigned int flags); 437e58487bSJoe Perches void rtmsg_fib(int event, __be32 key, struct fib_alias *fa, int dst_len, 447e58487bSJoe Perches u32 tb_id, const struct nl_info *info, unsigned int nlm_flags); 451da177e4SLinus Torvalds 46a2bbe682SDenis V. Lunev static inline void fib_result_assign(struct fib_result *res, 47a2bbe682SDenis V. Lunev struct fib_info *fi) 48a2bbe682SDenis V. Lunev { 491f1b9c99SEric Dumazet /* we used to play games with refcounts, but we now use RCU */ 50a2bbe682SDenis V. Lunev res->fi = fi; 51eba618abSDavid Ahern res->nhc = fib_info_nhc(fi, 0); 52a2bbe682SDenis V. Lunev } 53a2bbe682SDenis V. Lunev 543be0686bSDavid S. Miller struct fib_prop { 553be0686bSDavid S. Miller int error; 563be0686bSDavid S. Miller u8 scope; 573be0686bSDavid S. Miller }; 583be0686bSDavid S. Miller 593be0686bSDavid S. Miller extern const struct fib_prop fib_props[RTN_MAX + 1]; 603be0686bSDavid S. Miller 611da177e4SLinus Torvalds #endif /* _FIB_LOOKUP_H */ 62