FreeBSD/Linux Kernel Cross Reference
sys/netinet/in_fib.h

     /*-
      * Copyright (c) 2015
      *      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.
     * 3. 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.
     *
     * $FreeBSD$
     */
    
    #ifndef _NETINET_IN_FIB_H_
    #define _NETINET_IN_FIB_H_
    
    struct route_in {
            /* common fields shared among all 'struct route' */
            struct nhop_object *ro_nh;
            struct  llentry *ro_lle;
            char            *ro_prepend;
            uint16_t        ro_plen;
            uint16_t        ro_flags;
            uint16_t        ro_mtu; /* saved ro_rt mtu */
            uint16_t        spare;
            /* custom sockaddr */
            struct sockaddr_in ro_dst4;
    };
    
    struct rtentry;
    struct route_nhop_data;
    
    struct nhop_object *fib4_lookup(uint32_t fibnum, struct in_addr dst,
        uint32_t scopeid, uint32_t flags, uint32_t flowid);
    int fib4_check_urpf(uint32_t fibnum, struct in_addr dst, uint32_t scopeid,
        uint32_t flags, const struct ifnet *src_if);
    struct rtentry *fib4_lookup_rt(uint32_t fibnum, struct in_addr dst, uint32_t scopeid,
        uint32_t flags, struct route_nhop_data *nrd);
    struct nhop_object *fib4_lookup_debugnet(uint32_t fibnum, struct in_addr dst,
        uint32_t scopeid, uint32_t flags);
    uint32_t fib4_calc_software_hash(struct in_addr src, struct in_addr dst,
        unsigned short src_port, unsigned short dst_port, char proto,
        uint32_t *phashtype);
    #endif

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