1 /* $NetBSD: netio.c,v 1.6 2000/05/26 20:16:46 ragge Exp $ */ 2 3 /*- 4 * Copyright (c) 1996, 1997 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 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. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Copyright (c) 1995 Gordon W. Ross 41 * All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. The name of the author may not be used to endorse or promote products 52 * derived from this software without specific prior written permission. 53 * 4. All advertising materials mentioning features or use of this software 54 * must display the following acknowledgement: 55 * This product includes software developed by Gordon W. Ross 56 * 57 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 58 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 59 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 60 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 61 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 62 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 63 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 64 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 65 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 66 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 67 */ 68 69 /* 70 * This module implements a "raw device" interface suitable for 71 * use by the stand-alone I/O library NFS code. This interface 72 * does not support any "block" access, and exists only for the 73 * purpose of initializing the network interface, getting boot 74 * parameters, and performing the NFS mount. 75 * 76 * At open time, this does: 77 * 78 * find interface - netif_open() 79 * RARP for IP address - rarp_getipaddress() 80 * RPC/bootparams - callrpc(d, RPC_BOOTPARAMS, ...) 81 * RPC/mountd - nfs_mount(sock, ip, path) 82 * 83 * the root file handle from mountd is saved in a global 84 * for use by the NFS open code (NFS/lookup). 85 */ 86 87 #include <sys/param.h> 88 #include <sys/socket.h> 89 #include <net/if.h> 90 #include <netinet/in.h> 91 #include <netinet/if_ether.h> 92 #include <netinet/in_systm.h> 93 94 #include "lib/libsa/stand.h" 95 #include "lib/libsa/net.h" 96 #include "lib/libsa/netif.h" 97 #include "lib/libsa/bootparam.h" 98 #include "lib/libsa/nfs.h" 99 #include "lib/libsa/bootp.h" 100 101 #include <lib/libkern/libkern.h> 102 103 #include "vaxstand.h" 104 105 static struct iodesc desc; 106 static int inited = 0; 107 108 struct iodesc * 109 socktodesc(sock) 110 { 111 return &desc; 112 } 113 114 int 115 net_devinit(struct open_file *f, struct netif_driver *drv, u_char *eaddr) { 116 static struct netif best_if; 117 struct iodesc *s; 118 int r; 119 120 if (inited) 121 return 0; 122 /* find a free socket */ 123 s = &desc; 124 125 bzero(s, sizeof(*s)); 126 best_if.nif_driver = drv; 127 s->io_netif = &best_if; 128 bcopy(eaddr, s->myea, 6); 129 130 /* 131 * Get info for NFS boot: our IP address, our hostname, 132 * server IP address, and our root path on the server. 133 * There are two ways to do this: The old, Sun way, 134 * and the more modern, BOOTP way. (RFC951, RFC1048) 135 */ 136 137 #ifdef SUPPORT_BOOTP 138 139 /* Get boot info using BOOTP way. (RFC951, RFC1048) */ 140 printf("Trying BOOTP\n"); 141 bootp(0); 142 143 if (myip.s_addr) { 144 printf("Using IP address: %s\n", inet_ntoa(myip)); 145 146 printf("myip: %s (%s)\n", hostname, inet_ntoa(myip)); 147 } else 148 149 #endif /* SUPPORT_BOOTP */ 150 { 151 #ifdef SUPPORT_BOOTPARAMS 152 /* Get boot info using RARP and Sun bootparams. */ 153 154 printf("Trying BOOTPARAMS\n"); 155 /* Get our IP address. (rarp.c) */ 156 if (rarp_getipaddress(0) == -1) 157 return (errno); 158 159 printf("boot: client IP address: %s\n", inet_ntoa(myip)); 160 161 /* Get our hostname, server IP address. */ 162 if (bp_whoami(0)) 163 return (errno); 164 165 printf("boot: client name: %s\n", hostname); 166 167 /* Get the root pathname. */ 168 if (bp_getfile(0, "root", &rootip, rootpath)) 169 return (errno); 170 #endif 171 } 172 printf("root addr=%s path=%s\n", inet_ntoa(rootip), rootpath); 173 f->f_devdata = s; 174 175 /* Get the NFS file handle (mount). */ 176 r = nfs_mount(0, rootip, rootpath); 177 if (r) 178 return r; 179 180 inited = 1; 181 return 0; 182 } 183 184 ssize_t 185 netif_put(struct iodesc *desc, void *pkt, size_t len) 186 { 187 return (*desc->io_netif->nif_driver->netif_put)(desc, pkt, len); 188 } 189 190 ssize_t 191 netif_get(struct iodesc *desc, void *pkt, size_t len, time_t timo) 192 { 193 return (*desc->io_netif->nif_driver->netif_get)(desc, pkt, len, timo); 194 } 195