FreeBSD/Linux Kernel Cross Reference
sys/net/route_var.h

     /*-
      * Copyright (c) 2015-2016
      *      Alexander V. Chernikov <melifaro@FreeBSD.org>
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 4. Neither the name of the University nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD: releng/11.1/sys/net/route_var.h 297225 2016-03-24 07:54:56Z gnn $
     */
    
    #ifndef _NET_ROUTE_VAR_H_
    #define _NET_ROUTE_VAR_H_
    
    struct rib_head {
            struct radix_head       head;
            rn_matchaddr_f_t        *rnh_matchaddr; /* longest match for sockaddr */
            rn_addaddr_f_t          *rnh_addaddr;   /* add based on sockaddr*/
            rn_deladdr_f_t          *rnh_deladdr;   /* remove based on sockaddr */
            rn_lookup_f_t           *rnh_lookup;    /* exact match for sockaddr */
            rn_walktree_t           *rnh_walktree;  /* traverse tree */
            rn_walktree_from_t      *rnh_walktree_from; /* traverse tree below a */
            rn_close_t              *rnh_close;     /*do something when the last ref drops*/
            rt_gen_t                rnh_gen;        /* generation counter */
            int                     rnh_multipath;  /* multipath capable ? */
            struct radix_node       rnh_nodes[3];   /* empty tree for common case */
            struct rwlock           rib_lock;       /* config/data path lock */
            struct radix_mask_head  rmhead;         /* masks radix head */
    };
    
    #define RIB_RLOCK(rh)           rw_rlock(&(rh)->rib_lock)
    #define RIB_RUNLOCK(rh)         rw_runlock(&(rh)->rib_lock)
    #define RIB_WLOCK(rh)           rw_wlock(&(rh)->rib_lock)
    #define RIB_WUNLOCK(rh)         rw_wunlock(&(rh)->rib_lock)
    #define RIB_LOCK_ASSERT(rh)     rw_assert(&(rh)->rib_lock, RA_LOCKED)
    #define RIB_WLOCK_ASSERT(rh)    rw_assert(&(rh)->rib_lock, RA_WLOCKED)
    
    struct rib_head *rt_tables_get_rnh(int fib, int family);
    
    /* rte<>nhop translation */
    static inline uint16_t
    fib_rte_to_nh_flags(int rt_flags)
    {
            uint16_t res;
    
            res = (rt_flags & RTF_REJECT) ? NHF_REJECT : 0;
            res |= (rt_flags & RTF_BLACKHOLE) ? NHF_BLACKHOLE : 0;
            res |= (rt_flags & (RTF_DYNAMIC|RTF_MODIFIED)) ? NHF_REDIRECT : 0;
            res |= (rt_flags & RTF_BROADCAST) ? NHF_BROADCAST : 0;
            res |= (rt_flags & RTF_GATEWAY) ? NHF_GATEWAY : 0;
    
            return (res);
    }
    
    
    #endif

Cache object: 27e45083ba7161317099aa8a65eb8398