1 /* $NetBSD: nfs_bootstatic.c,v 1.5 2007/07/08 21:08:09 bouyer Exp $ */ 2 3 /* 4 * 5 * Copyright (c) 2004 Christian Limpach. 6 * All rights reserved. 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 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Christian Limpach. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 35 #include <sys/cdefs.h> 36 __KERNEL_RCSID(0, "$NetBSD: nfs_bootstatic.c,v 1.5 2007/07/08 21:08:09 bouyer Exp $"); 37 38 #include "opt_nfs_boot.h" 39 #include "opt_inet.h" 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/kernel.h> 44 #include <sys/ioctl.h> 45 #include <sys/proc.h> 46 #include <sys/mount.h> 47 #include <sys/mbuf.h> 48 #include <sys/socket.h> 49 #include <sys/socketvar.h> 50 51 #include <net/if.h> 52 #include <net/if_types.h> 53 #include <net/if_media.h> 54 #include <net/route.h> 55 #include <net/if_ether.h> 56 57 #include <netinet/in.h> 58 #include <netinet/if_inarp.h> 59 60 #include <nfs/rpcv2.h> 61 62 #include <nfs/nfsproto.h> 63 #include <nfs/nfs.h> 64 #include <nfs/nfsmount.h> 65 #include <nfs/nfsdiskless.h> 66 67 int (*nfs_bootstatic_callback)(struct nfs_diskless *) = NULL; 68 69 int 70 nfs_bootstatic(struct nfs_diskless *nd, struct lwp *lwp) 71 { 72 struct ifnet *ifp = nd->nd_ifp; 73 struct sockaddr_in *sin; 74 int error, flags; 75 76 if (nfs_bootstatic_callback) 77 flags = (*nfs_bootstatic_callback)(nd); 78 else 79 flags = 0; 80 81 if (flags & NFS_BOOTSTATIC_NOSTATIC) 82 return EOPNOTSUPP; 83 84 if (flags == 0) { 85 #ifdef NFS_BOOTSTATIC_MYIP 86 nd->nd_myip.s_addr = inet_addr(NFS_BOOTSTATIC_MYIP); 87 flags |= NFS_BOOTSTATIC_HAS_MYIP; 88 #endif 89 #ifdef NFS_BOOTSTATIC_GWIP 90 nd->nd_gwip.s_addr = inet_addr(NFS_BOOTSTATIC_GWIP); 91 flags |= NFS_BOOTSTATIC_HAS_GWIP; 92 #endif 93 #ifdef NFS_BOOTSTATIC_MASK 94 nd->nd_mask.s_addr = inet_addr(NFS_BOOTSTATIC_MASK); 95 flags |= NFS_BOOTSTATIC_HAS_MASK; 96 #endif 97 #ifdef NFS_BOOTSTATIC_SERVADDR 98 sin = (struct sockaddr_in *) &nd->nd_root.ndm_saddr; 99 memset((void *)sin, 0, sizeof(*sin)); 100 sin->sin_len = sizeof(*sin); 101 sin->sin_family = AF_INET; 102 sin->sin_addr.s_addr = inet_addr(NFS_BOOTSTATIC_SERVADDR); 103 flags |= NFS_BOOTSTATIC_HAS_SERVADDR; 104 #endif 105 #ifdef NFS_BOOTSTATIC_SERVER 106 strncpy(nd->nd_root.ndm_host, NFS_BOOTSTATIC_SERVER, MNAMELEN); 107 flags |= NFS_BOOTSTATIC_HAS_SERVER; 108 #endif 109 } 110 111 if (flags & NFS_BOOTSTATIC_HAS_MYIP) 112 aprint_normal("nfs_boot: client_addr=%s\n", 113 inet_ntoa(nd->nd_myip)); 114 115 if (flags & NFS_BOOTSTATIC_HAS_GWIP) 116 aprint_normal("nfs_boot: gateway=%s\n", 117 inet_ntoa(nd->nd_gwip)); 118 119 if (flags & NFS_BOOTSTATIC_HAS_MASK) 120 aprint_normal("nfs_boot: netmask=%s\n", 121 inet_ntoa(nd->nd_mask)); 122 123 if (flags & NFS_BOOTSTATIC_HAS_SERVADDR) { 124 sin = (struct sockaddr_in *) &nd->nd_root.ndm_saddr; 125 aprint_normal("nfs_boot: server=%s\n", 126 inet_ntoa(sin->sin_addr)); 127 } 128 129 if (flags & NFS_BOOTSTATIC_HAS_SERVER) 130 aprint_normal("nfs_boot: root=%.*s\n", MNAMELEN, 131 nd->nd_root.ndm_host); 132 133 /* 134 * Do enough of ifconfig(8) so that the chosen interface 135 * can talk to the servers. 136 */ 137 error = nfs_boot_setaddress(ifp, lwp, 138 flags & NFS_BOOTSTATIC_HAS_MYIP ? nd->nd_myip.s_addr : INADDR_ANY, 139 flags & NFS_BOOTSTATIC_HAS_MASK ? nd->nd_mask.s_addr : INADDR_ANY, 140 INADDR_ANY); 141 if (error) { 142 aprint_error("nfs_boot: set ifaddr, error=%d\n", error); 143 goto out; 144 } 145 146 error = 0; 147 148 out: 149 150 return error; 151 } 152