1 /* $OpenBSD: mpls_raw.c,v 1.21 2024/08/14 17:52:47 mvs Exp $ */
2
3 /*
4 * Copyright (C) 1999, 2000 and 2001 AYAME Project, WIDE Project.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
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 #include <sys/param.h>
34 #include <sys/mbuf.h>
35 #include <sys/errno.h>
36 #include <sys/sockio.h>
37 #include <sys/socket.h>
38 #include <sys/socketvar.h>
39 #include <sys/systm.h>
40 #include <sys/sysctl.h>
41
42 #include <net/if.h>
43 #include <net/if_var.h>
44
45 #include <netmpls/mpls.h>
46
47 int mpls_defttl = 255;
48 int mpls_mapttl_ip = 1;
49 int mpls_mapttl_ip6 = 0;
50
51 const struct sysctl_bounded_args mplsctl_vars[] = {
52 { MPLSCTL_DEFTTL, &mpls_defttl, 0, 255 },
53 { MPLSCTL_MAPTTL_IP, &mpls_mapttl_ip, 0, 1 },
54 { MPLSCTL_MAPTTL_IP6, &mpls_mapttl_ip6, 0, 1 },
55 };
56
57 int
mpls_sysctl(int * name,u_int namelen,void * oldp,size_t * oldlenp,void * newp,size_t newlen)58 mpls_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp,
59 size_t newlen)
60 {
61 int error;
62
63 KERNEL_LOCK();
64 error = sysctl_bounded_arr(mplsctl_vars, nitems(mplsctl_vars),
65 name, namelen, oldp, oldlenp, newp, newlen);
66 KERNEL_UNLOCK();
67
68 return error;
69 }
70