devopen.c revision 1.3
1 /* $NetBSD: devopen.c,v 1.3 2007/10/27 12:26:20 tsutsui Exp $ */ 2 3 /*- 4 * Copyright (c) 2004 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by UCHIYAMA Yasushi. 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 #include <lib/libsa/stand.h> 40 #include <lib/libkern/libkern.h> 41 42 #include <netinet/in.h> 43 #include <lib/libsa/dev_net.h> 44 #include <lib/libsa/ufs.h> 45 #include <lib/libsa/nfs.h> 46 #include <lib/libsa/dev_net.h> 47 #include <machine/sbd.h> 48 49 #include "local.h" 50 51 extern uint8_t kernel_binary[]; 52 extern int kernel_binary_size; 53 54 extern struct fs_ops datafs_ops; 55 extern struct fs_ops bfs_ops; 56 struct fs_ops ufs_ops = { 57 ufs_open, ufs_close, ufs_read, ufs_write, ufs_seek, ufs_stat 58 }; 59 struct fs_ops nfs_ops = { 60 nfs_open, nfs_close, nfs_read, nfs_write, nfs_seek, nfs_stat 61 }; 62 63 extern struct devsw netdevsw; 64 extern struct devsw dkdevsw; 65 char fname[16]; 66 67 /* Referenced by libsa/open.c */ 68 struct fs_ops file_system[1]; 69 int nfsys = 1; 70 struct devsw devsw[1]; 71 int ndevs = 1; 72 73 int 74 devopen(struct open_file *f, const char *request, char **file) 75 { 76 char *p, *filename; 77 int disk, partition; 78 void *addr; 79 size_t size; 80 81 strcpy(fname, request); 82 83 filename = 0; 84 for (p = fname; *p; p++) { 85 if (*p == ':') { 86 filename = p + 1; 87 *p = '\0'; 88 break; 89 } 90 } 91 92 if (filename == 0) { /* not a loader's request. probably ufs_ls() */ 93 printf("request=%s\n", request); 94 f->f_dev = &dkdevsw; 95 file_system[0] = ufs_ops; 96 devsw[0] = dkdevsw; 97 *file = "/"; 98 return 0; 99 } 100 101 /* Data section */ 102 if (strcmp(fname, "mem") == 0) { 103 data_attach(kernel_binary, kernel_binary_size); 104 *file = "noname"; 105 f->f_flags |= F_NODEV; 106 file_system[0] = datafs_ops; 107 printf("data(compiled):noname\n"); 108 return 0; 109 } 110 111 /* NFS boot */ 112 if (strcmp(fname, "nfs") == 0) { 113 if (!DEVICE_CAPABILITY.network_enabled) { 114 printf("Network disabled.\n"); 115 return -1; 116 } 117 try_bootp = true; 118 file_system[0] = nfs_ops; 119 f->f_dev = &netdevsw; 120 if (*filename == '\0') { 121 printf("set kernel filename. ex.) nfs:netbsd\n"); 122 return 1; 123 } 124 *--filename = '/'; 125 *file = filename; 126 printf("nfs:/%s\n", filename); 127 net_open(f); 128 return 0; 129 } 130 131 /* FD boot */ 132 if (strcmp(fname, "fd") == 0) { 133 printf("floppy(boot):/%s (ustarfs)\n", filename); 134 f->f_dev = &dkdevsw; 135 file_system[0] = datafs_ops; 136 devsw[0] = dkdevsw; 137 device_attach(NVSRAM_BOOTDEV_FLOPPYDISK, -1, -1); 138 if (!ustarfs_load(filename, &addr, &size)) 139 return -1; 140 data_attach(addr, size); 141 *file = filename; 142 return 0; 143 } 144 145 /* Disk boot */ 146 if (strncmp(fname, "sd", 2) == 0) { 147 enum fstype fs; 148 if (!DEVICE_CAPABILITY.disk_enabled) { 149 printf("Disk disabled.\n"); 150 return -1; 151 } 152 153 disk = fname[2] - '0'; 154 partition = fname[3] - 'a'; 155 if (disk < 0 || disk > 9 || partition < 0 || partition > 15) { 156 fs = FSTYPE_USTARFS; 157 printf("disk(boot):%s ", filename); 158 device_attach(NVSRAM_BOOTDEV_HARDDISK, -1, -1); 159 } else { 160 fs = fstype(partition); 161 printf("disk(%d,%d):/%s ", 162 disk, partition, filename); 163 device_attach(NVSRAM_BOOTDEV_HARDDISK, disk, partition); 164 } 165 166 switch (fs) { 167 case FSTYPE_UFS: 168 printf(" (ufs)\n"); 169 f->f_dev = &dkdevsw; 170 file_system[0] = ufs_ops; 171 devsw[0] = dkdevsw; 172 break; 173 case FSTYPE_BFS: 174 printf(" (bfs)\n"); 175 f->f_flags |= F_NODEV; 176 file_system[0] = bfs_ops; 177 break; 178 case FSTYPE_USTARFS: 179 printf(" (ustarfs)\n"); 180 f->f_dev = &dkdevsw; 181 file_system[0] = datafs_ops; 182 devsw[0] = dkdevsw; 183 if (!ustarfs_load(filename, &addr, &size)) 184 return -1; 185 data_attach(addr, size); 186 break; 187 } 188 *file = filename; 189 return 0; 190 } 191 192 printf("%s invalid.\n", fname); 193 194 return -1; 195 } 196
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