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 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 57 RUMP_COMPONENT(RUMP_COMPONENT_NET_IF) 58 { 59 60 carpattach(1); 61 } 62 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