1 /* $NetBSD: netinet_component.c,v 1.13 2022/09/03 02:48:01 thorpej Exp $ */
2
3 /*
4 * Copyright (c) 2009 Antti Kantee. All Rights Reserved.
5 *
6 * Development of this software was supported by The Nokia Foundation
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 AUTHOR ``AS IS'' AND ANY EXPRESS
18 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
23 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 #include <sys/cdefs.h>
31 __KERNEL_RCSID(0, "$NetBSD: netinet_component.c,v 1.13 2022/09/03 02:48:01 thorpej Exp $");
32
33 #include <sys/param.h>
34 #include <sys/domain.h>
35 #include <sys/protosw.h>
36 #include <sys/socketvar.h>
37
38 #include <net/if.h>
39 #include <netinet/in.h>
40 #include <netinet/in_var.h>
41 #include <netinet/ip_var.h>
42 #include <netinet/if_inarp.h>
43
44 #include <rump-sys/kern.h>
45 #include <rump-sys/net.h>
46
RUMP_COMPONENT(RUMP_COMPONENT_NET)47 RUMP_COMPONENT(RUMP_COMPONENT_NET)
48 {
49 extern struct domain arpdomain, inetdomain;
50
51 domain_attach(&arpdomain);
52 domain_attach(&inetdomain);
53 }
54
55 int carpattach(int);
56
RUMP_COMPONENT(RUMP_COMPONENT_NET_IF)57 RUMP_COMPONENT(RUMP_COMPONENT_NET_IF)
58 {
59
60 carpattach(1);
61 }
62
RUMP_COMPONENT(RUMP_COMPONENT_NET_IFCFG)63 RUMP_COMPONENT(RUMP_COMPONENT_NET_IFCFG)
64 {
65 struct ifaliasreq ia;
66 struct sockaddr_in *sin;
67 struct socket *so;
68 int error;
69
70 if (lo0ifp == NULL)
71 panic("lo0 config: rumpnet_net has not been initialized");
72
73 if ((error = socreate(AF_INET, &so, SOCK_DGRAM, 0, curlwp, NULL)) != 0)
74 panic("lo0 config: cannot create socket");
75
76 /* configure 127.0.0.1 for lo0 */
77 memset(&ia, 0, sizeof(ia));
78 strcpy(ia.ifra_name, "lo0");
79 sin = (struct sockaddr_in *)&ia.ifra_addr;
80 sin->sin_family = AF_INET;
81 sin->sin_len = sizeof(struct sockaddr_in);
82 sin->sin_addr.s_addr = inet_addr("127.0.0.1");
83
84 sin = (struct sockaddr_in *)&ia.ifra_mask;
85 sin->sin_family = AF_INET;
86 sin->sin_len = sizeof(struct sockaddr_in);
87 sin->sin_addr.s_addr = inet_addr("255.0.0.0");
88
89 sin = (struct sockaddr_in *)&ia.ifra_broadaddr;
90 sin->sin_family = AF_INET;
91 sin->sin_len = sizeof(struct sockaddr_in);
92 sin->sin_addr.s_addr = inet_addr("127.255.255.255");
93
94 KERNEL_LOCK(1, NULL);
95 IFNET_LOCK(lo0ifp);
96 in_control(so, SIOCAIFADDR, &ia, lo0ifp);
97 IFNET_UNLOCK(lo0ifp);
98 KERNEL_UNLOCK_ONE(NULL);
99 if_up(lo0ifp);
100 soclose(so);
101 }
102