1 /* $NetBSD: main.c,v 1.34 2024/09/11 20:15:36 andvar Exp $ */ 2 3 /* 4 * Copyright (c) 1996, 1997 5 * Matthias Drochner. All rights reserved. 6 * Copyright (c) 1996, 1997 7 * Perry E. Metzger. All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgements: 19 * This product includes software developed for the NetBSD Project 20 * by Matthias Drochner. 21 * This product includes software developed for the NetBSD Project 22 * by Perry E. Metzger. 23 * 4. The names of the authors may not be used to endorse or promote products 24 * derived from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 27 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 28 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 29 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 30 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 31 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 35 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 39 #include <sys/reboot.h> 40 41 #include <lib/libkern/libkern.h> 42 #include <lib/libsa/stand.h> 43 #include <lib/libsa/ufs.h> 44 45 #include <libi386.h> 46 47 int errno; 48 49 extern char bootprog_name[], bootprog_rev[], bootprog_kernrev[]; 50 51 #define MAXDEVNAME 16 52 53 static char *current_fsmode; 54 static char *default_devname; 55 static int default_unit, default_partition; 56 static char *default_filename; 57 58 char *sprint_bootsel(const char *); 59 static void bootit(const char *, int, int); 60 void usage(void); 61 int main(int, char **); 62 63 void command_help(char *); 64 void command_ls(char *); 65 void command_quit(char *); 66 void command_boot(char *); 67 void command_mode(char *); 68 void command_dev(char *); 69 70 const struct bootblk_command commands[] = { 71 { "help", command_help }, 72 { "?", command_help }, 73 { "ls", command_ls }, 74 { "quit", command_quit }, 75 { "boot", command_boot }, 76 { "mode", command_mode }, 77 { "dev", command_dev }, 78 { NULL, NULL }, 79 }; 80 81 int 82 parsebootfile(const char *fname, char **fsmode, char **devname, int *unit, int *partition, const char **file) 83 /* fsmode: out */ 84 /* devname: out */ 85 /* unit, *partition: out */ 86 /* file: out */ 87 { 88 const char *col, *help; 89 90 *fsmode = current_fsmode; 91 *devname = default_devname; 92 *unit = default_unit; 93 *partition = default_partition; 94 *file = default_filename; 95 96 if (fname == NULL) 97 return (0); 98 99 if (strcmp(current_fsmode, "dos") && (col = strchr(fname, ':'))) { 100 /* no DOS, device given */ 101 static char savedevname[MAXDEVNAME + 1]; 102 int devlen; 103 unsigned int u = 0, p = 0; 104 int i = 0; 105 106 devlen = col - fname; 107 if (devlen > MAXDEVNAME) 108 return (EINVAL); 109 110 #define isvalidname(c) ((c) >= 'a' && (c) <= 'z') 111 if (!isvalidname(fname[i])) 112 return (EINVAL); 113 do { 114 savedevname[i] = fname[i]; 115 i++; 116 } while (isvalidname(fname[i])); 117 savedevname[i] = '\0'; 118 119 #define isnum(c) ((c) >= '0' && (c) <= '9') 120 if (i < devlen) { 121 if (!isnum(fname[i])) 122 return (EUNIT); 123 do { 124 u *= 10; 125 u += fname[i++] - '0'; 126 } while (isnum(fname[i])); 127 } 128 129 #define isvalidpart(c) ((c) >= 'a' && (c) <= 'z') 130 if (i < devlen) { 131 if (!isvalidpart(fname[i])) 132 return (EPART); 133 p = fname[i++] - 'a'; 134 } 135 if (i != devlen) 136 return (ENXIO); 137 138 *devname = savedevname; 139 *unit = u; 140 *partition = p; 141 help = col + 1; 142 } else 143 help = fname; 144 145 if (*help) 146 *file = help; 147 148 return (0); 149 } 150 151 char * 152 sprint_bootsel(const char *filename) 153 { 154 char *fsname, *devname; 155 int unit, partition; 156 const char *file; 157 static char buf[80]; 158 159 if (parsebootfile(filename, &fsname, &devname, &unit, 160 &partition, &file) == 0) { 161 if (!strcmp(fsname, "dos")) 162 snprintf(buf, sizeof(buf), "dos:%s", file); 163 else if (!strcmp(fsname, "ufs")) 164 snprintf(buf, sizeof(buf), "%s%d%c:%s", devname, unit, 165 'a' + partition, file); 166 else goto bad; 167 return (buf); 168 } 169 bad: 170 return ("(invalid)"); 171 } 172 173 static void 174 bootit(const char *filename, int howto, int tell) 175 { 176 int floppy = strncmp(default_devname, "fd", 2) == 0; 177 if (tell) { 178 printf("booting %s", sprint_bootsel(filename)); 179 if (howto) 180 printf(" (howto 0x%x)", howto); 181 printf("\n"); 182 } 183 if (exec_netbsd(filename, 0, howto, floppy, NULL) < 0) 184 printf("boot: %s: %s\n", sprint_bootsel(filename), 185 strerror(errno)); 186 else 187 printf("boot returned\n"); 188 } 189 190 static void 191 print_banner(void) 192 { 193 int extmem = getextmem(); 194 195 clear_pc_screen(); 196 197 printf("\n" 198 ">> %s, Revision %s (from NetBSD %s)\n" 199 ">> Memory: %d/%d k\n", 200 bootprog_name, bootprog_rev, bootprog_kernrev, 201 getbasemem(), extmem); 202 } 203 204 void 205 usage(void) 206 { 207 printf("dosboot [-u] [-c <commands>] [-i] [filename [-bootopts]]\n"); 208 } 209 210 int 211 main(int argc, char **argv) 212 { 213 int ch; 214 int interactive = 0; 215 int howto; 216 extern char *optarg; 217 extern int optind; 218 219 #ifdef SUPPORT_SERIAL 220 initio(SUPPORT_SERIAL); 221 #else 222 initio(CONSDEV_PC); 223 #endif 224 gateA20(); 225 226 print_banner(); 227 228 current_fsmode = "dos"; 229 default_devname = "hd"; 230 default_unit = 0; 231 default_partition = 0; 232 default_filename = "netbsd"; 233 234 while ((ch = getopt(argc, argv, "c:iu")) != -1) { 235 switch (ch) { 236 case 'c': 237 docommand(optarg); 238 return (1); 239 break; 240 case 'i': 241 interactive = 1; 242 break; 243 case 'u': 244 current_fsmode = "ufs"; 245 break; 246 default: 247 usage(); 248 return (1); 249 } 250 } 251 252 if (interactive) { 253 printf("type \"?\" or \"help\" for help.\n"); 254 bootmenu(); 255 } 256 257 argc -= optind; 258 argv += optind; 259 260 if (argc > 2) { 261 usage(); 262 return (1); 263 } 264 howto = 0; 265 if (argc > 1 && !parseopts(argv[1], &howto)) 266 return (1); 267 268 bootit((argc > 0 ? argv[0] : "netbsd"), howto, 1); 269 return (1); 270 } 271 272 /* ARGSUSED */ 273 void 274 command_help(char *arg) 275 { 276 printf("commands are:\n" 277 "boot [xdNx:][filename] [-acdqsv]\n" 278 " (ex. \"sd0a:netbsd.old -s\"\n" 279 "ls [path]\n" 280 "mode ufs|dos\n" 281 "dev xd[N[x]]:\n" 282 "help|?\n" 283 "quit\n"); 284 } 285 286 void 287 command_ls(char *arg) 288 { 289 char *help = default_filename; 290 default_filename = "/"; 291 ls(arg); 292 default_filename = help; 293 } 294 295 /* ARGSUSED */ 296 void 297 command_quit(char *arg) 298 { 299 printf("Exiting... goodbye...\n"); 300 _rtt(); 301 } 302 303 void 304 command_boot(char *arg) 305 { 306 char *filename; 307 int howto; 308 309 if (parseboot(arg, &filename, &howto)) 310 bootit(filename, howto, 1); 311 } 312 313 void 314 command_mode(char *arg) 315 { 316 if (!strcmp("dos", arg)) 317 current_fsmode = "dos"; 318 else if (!strcmp("ufs", arg)) 319 current_fsmode = "ufs"; 320 else 321 printf("invalid mode\n"); 322 } 323 324 void 325 command_dev(char *arg) 326 { 327 static char savedevname[MAXDEVNAME + 1]; 328 char *fsname, *devname; 329 const char *file; /* dummy */ 330 331 if (!strcmp(current_fsmode, "dos")) { 332 printf("not available in DOS mode\n"); 333 return; 334 } 335 336 if (*arg == '\0') { 337 printf("%s%d%c:\n", default_devname, default_unit, 338 'a' + default_partition); 339 return; 340 } 341 342 if (!strchr(arg, ':') || 343 parsebootfile(arg, &fsname, &devname, &default_unit, 344 &default_partition, &file)) { 345 command_help(NULL); 346 return; 347 } 348 349 /* put to own static storage */ 350 strncpy(savedevname, devname, MAXDEVNAME + 1); 351 default_devname = savedevname; 352 } 353