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      1 /*	$NetBSD: if.h,v 1.13 2021/03/23 18:16:21 christos Exp $	*/
      2 /*	$KAME: if.h,v 1.12 2003/09/21 07:17:03 itojun Exp $	*/
      3 
      4 /*
      5  * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. Neither the name of the project nor the names of its contributors
     17  *    may be used to endorse or promote products derived from this software
     18  *    without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
     21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
     24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     30  * SUCH DAMAGE.
     31  */
     32 
     33 #define RTADV_TYPE2BITMASK(type) (0x1 << type)
     34 
     35 struct nd_opt_hdr;
     36 struct sockaddr_dl *if_nametosdl(const char *);
     37 int if_getmtu(const char *);
     38 int if_getflags(unsigned int, int);
     39 int lladdropt_length(struct sockaddr_dl *);
     40 void lladdropt_fill(struct sockaddr_dl *, struct nd_opt_hdr *);
     41 char *get_next_msg(char *, char *, unsigned int, size_t *, int);
     42 const struct in6_addr *get_addr(const void *);
     43 unsigned int get_rtm_ifindex(const void *);
     44 unsigned int get_ifm_ifindex(const void *);
     45 unsigned int get_ifam_ifindex(const void *);
     46 int get_ifm_flags(const void *);
     47 #ifdef RTM_IFANNOUNCE
     48 unsigned int get_ifan_ifindex(const void *);
     49 int get_ifan_what(const void *);
     50 #endif
     51 int get_prefixlen(const void *);
     52 int prefixlen(const unsigned char *, const unsigned char *);
     53 const char *rtmsg_typestr(const void *);
     54 int rtmsg_type(const void *);
     55 int rtmsg_len(const void *);
     56