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npfext_route.c revision 1.1 
      1 /*-
      2  * Copyright (c) 2025 The NetBSD Foundation, Inc.
      3  * All rights reserved.
      4  *
      5  * This code is derived from software contributed to The NetBSD Foundation
      6  * by Emmanuel Nyarko.
      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  *
     17  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     18  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     20  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     21  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     25  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     27  * POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 #include <sys/cdefs.h>
     31 __RCSID("$NetBSD: npfext_route.c,v 1.1 2026/04/08 00:33:06 joe Exp $");
     32 
     33 #include <sys/types.h>
     34 #include <sys/socket.h>
     35 #include <sys/ioctl.h>
     36 #include <net/if.h>
     37 
     38 #include <stdio.h>
     39 #include <string.h>
     40 #include <assert.h>
     41 #include <errno.h>
     42 #include <err.h>
     43 #include <unistd.h>
     44 
     45 #include <npf.h>
     46 
     47 int             npfext_route_init(void);
     48 nl_ext_t *      npfext_route_construct(const char *);
     49 int             npfext_route_param(nl_ext_t *, const char *, const char *);
     50 
     51 int
     52 npfext_route_init(void)
     53 {
     54     /* Nothing to initialise. */
     55     return 0;
     56 }
     57 
     58 nl_ext_t *
     59 npfext_route_construct(const char *name)
     60 {
     61     assert(strcmp(name, "route") == 0);
     62     return npf_ext_construct(name);
     63 }
     64 
     65 int
     66 npfext_route_param(nl_ext_t *ext, const char *param, const char *val __unused)
     67 {
     68     assert(param != NULL);
     69     npf_ext_param_string(ext, "route-interface", param);
     70     return 0;
     71 }
     72