1 /* $NetBSD: net_inet6_nd_90.c,v 1.2 2023/12/09 20:31:57 oster Exp $ */
2
3 /* $NetBSD: net_inet6_nd_90.c,v 1.2 2023/12/09 20:31:57 oster Exp $ */
4 /* $KAME: nd6.c,v 1.279 2002/06/08 11:16:51 itojun Exp $ */
5
6 /*
7 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the project nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35 #include <sys/cdefs.h>
36 __KERNEL_RCSID(0, "$NetBSD: net_inet6_nd_90.c,v 1.2 2023/12/09 20:31:57 oster Exp $");
37
38 #if defined(_KERNEL_OPT)
39 #include "opt_compat_netbsd.h"
40 #endif
41
42 #include <sys/param.h>
43 #include <sys/systm.h>
44 #include <sys/namei.h>
45 #include <sys/filedesc.h>
46 #include <sys/kernel.h>
47 #include <sys/sysctl.h>
48
49 #include <net/if.h>
50
51 #include <netinet/in.h>
52
53 #include <netinet/icmp6.h>
54 #include <netinet/ip6.h>
55
56 #include <netinet6/in6_var.h>
57 #include <netinet6/nd6.h>
58
59 #include <sys/compat_stub.h>
60
61 #include <compat/common/compat_mod.h>
62
63 #ifdef INET6
64
65 static struct sysctllog *nd6_clog;
66
67 /*
68 * sysctl helper routine for the net.inet6.icmp6.nd6 nodes. silly?
69 */
70 static int
sysctl_net_inet6_icmp6_nd6(SYSCTLFN_ARGS)71 sysctl_net_inet6_icmp6_nd6(SYSCTLFN_ARGS)
72 {
73 (void)&name;
74 (void)&l;
75 (void)&oname;
76
77 if (namelen != 0)
78 return (EINVAL);
79
80 return (nd6_sysctl(rnode->sysctl_num, oldp, oldlenp,
81 /*XXXUNCONST*/
82 __UNCONST(newp), newlen));
83 }
84 int real_net_inet6_nd_90(int);
85
86 /*
87 * the hook is only called for valid codes, so the mere presence
88 * of the hook means success.
89 */
90 /* ARGSUSED */
91 int
real_net_inet6_nd_90(int name)92 real_net_inet6_nd_90(int name)
93 {
94
95 return 0;
96 }
97
98 int
net_inet6_nd_90_init(void)99 net_inet6_nd_90_init(void)
100 {
101 int error;
102
103 error = sysctl_createv(&nd6_clog, 0, NULL, NULL,
104 CTLFLAG_PERMANENT,
105 CTLTYPE_STRUCT, "nd6_drlist",
106 SYSCTL_DESCR("Default router list"),
107 sysctl_net_inet6_icmp6_nd6, 0, NULL, 0,
108 CTL_NET, PF_INET6, IPPROTO_ICMPV6,
109 OICMPV6CTL_ND6_DRLIST, CTL_EOL);
110 if (error != 0)
111 return error;
112
113 error = sysctl_createv(&nd6_clog, 0, NULL, NULL,
114 CTLFLAG_PERMANENT,
115 CTLTYPE_STRUCT, "nd6_prlist",
116 SYSCTL_DESCR("Prefix list"),
117 sysctl_net_inet6_icmp6_nd6, 0, NULL, 0,
118 CTL_NET, PF_INET6, IPPROTO_ICMPV6,
119 OICMPV6CTL_ND6_PRLIST, CTL_EOL);
120
121 MODULE_HOOK_SET(net_inet6_nd_90_hook, real_net_inet6_nd_90);
122 return error;
123 }
124
125 int
net_inet6_nd_90_fini(void)126 net_inet6_nd_90_fini(void)
127 {
128
129 sysctl_teardown(&nd6_clog);
130 MODULE_HOOK_UNSET(net_inet6_nd_90_hook);
131 return 0;
132 }
133
134 #endif /* INET6 */
135
136