vnconfig.c revision 1.30
1 /* $NetBSD: vnconfig.c,v 1.30 2004/01/25 21:49:04 atatat Exp $ */ 2 3 /*- 4 * Copyright (c) 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) 1990, 1993 41 * The Regents of the University of California. All rights reserved. 42 * 43 * This code is derived from software contributed to Berkeley by 44 * the Systems Programming Group of the University of Utah Computer 45 * Science Department. 46 * 47 * Redistribution and use in source and binary forms, with or without 48 * modification, are permitted provided that the following conditions 49 * are met: 50 * 1. Redistributions of source code must retain the above copyright 51 * notice, this list of conditions and the following disclaimer. 52 * 2. Redistributions in binary form must reproduce the above copyright 53 * notice, this list of conditions and the following disclaimer in the 54 * documentation and/or other materials provided with the distribution. 55 * 3. Neither the name of the University nor the names of its contributors 56 * may be used to endorse or promote products derived from this software 57 * without specific prior written permission. 58 * 59 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 60 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 61 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 62 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 63 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 64 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 65 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 66 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 67 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 69 * SUCH DAMAGE. 70 * 71 * from: Utah $Hdr: vnconfig.c 1.1 93/12/15$ 72 * 73 * @(#)vnconfig.c 8.1 (Berkeley) 12/15/93 74 */ 75 76 /* 77 * Copyright (c) 1993 University of Utah. 78 * 79 * This code is derived from software contributed to Berkeley by 80 * the Systems Programming Group of the University of Utah Computer 81 * Science Department. 82 * 83 * Redistribution and use in source and binary forms, with or without 84 * modification, are permitted provided that the following conditions 85 * are met: 86 * 1. Redistributions of source code must retain the above copyright 87 * notice, this list of conditions and the following disclaimer. 88 * 2. Redistributions in binary form must reproduce the above copyright 89 * notice, this list of conditions and the following disclaimer in the 90 * documentation and/or other materials provided with the distribution. 91 * 3. All advertising materials mentioning features or use of this software 92 * must display the following acknowledgement: 93 * This product includes software developed by the University of 94 * California, Berkeley and its contributors. 95 * 4. Neither the name of the University nor the names of its contributors 96 * may be used to endorse or promote products derived from this software 97 * without specific prior written permission. 98 * 99 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 100 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 101 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 102 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 103 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 104 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 105 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 106 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 107 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 108 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 109 * SUCH DAMAGE. 110 * 111 * from: Utah $Hdr: vnconfig.c 1.1 93/12/15$ 112 * 113 * @(#)vnconfig.c 8.1 (Berkeley) 12/15/93 114 */ 115 116 #include <sys/param.h> 117 #include <sys/ioctl.h> 118 #include <sys/mount.h> 119 #include <sys/buf.h> 120 #include <sys/disklabel.h> 121 #include <sys/disk.h> 122 123 #include <dev/vndvar.h> 124 125 #include <disktab.h> 126 #include <err.h> 127 #include <errno.h> 128 #include <fcntl.h> 129 #include <stdio.h> 130 #include <stdlib.h> 131 #include <string.h> 132 #include <unistd.h> 133 #include <util.h> 134 135 #define VND_CONFIG 1 136 #define VND_UNCONFIG 2 137 #define VND_GET 3 138 139 int verbose = 0; 140 int readonly = 0; 141 int force = 0; 142 char *tabname; 143 144 int config __P((char *, char *, char *, int)); 145 int getgeom __P((struct vndgeom *, char *)); 146 int main __P((int, char **)); 147 char *rawdevice __P((char *)); 148 void usage __P((void)); 149 150 int 151 main(argc, argv) 152 int argc; 153 char *argv[]; 154 { 155 int ch, rv, action = VND_CONFIG; 156 157 while ((ch = getopt(argc, argv, "Fcf:lrt:uv")) != -1) { 158 switch (ch) { 159 case 'F': 160 force = 1; 161 break; 162 case 'c': 163 action = VND_CONFIG; 164 break; 165 case 'f': 166 if (setdisktab(optarg) == -1) 167 usage(); 168 break; 169 case 'l': 170 action = VND_GET; 171 break; 172 case 'r': 173 readonly = 1; 174 break; 175 case 't': 176 tabname = optarg; 177 break; 178 case 'u': 179 action = VND_UNCONFIG; 180 break; 181 case 'v': 182 verbose = 1; 183 break; 184 default: 185 case '?': 186 usage(); 187 /* NOTREACHED */ 188 } 189 } 190 argc -= optind; 191 argv += optind; 192 193 if (action == VND_CONFIG) { 194 if ((argc < 2 || argc > 3) || 195 (argc == 3 && tabname != NULL)) 196 usage(); 197 rv = config(argv[0], argv[1], (argc == 3) ? argv[2] : NULL, 198 action); 199 } else if (action == VND_UNCONFIG) { 200 if (argc != 1 || tabname != NULL) 201 usage(); 202 rv = config(argv[0], NULL, NULL, action); 203 } else { /* VND_GET */ 204 char *vn, path[64]; 205 struct vnd_user vnu; 206 int v, n; 207 208 if (argc != 0 && argc != 1) 209 usage(); 210 211 vn = argc ? argv[0] : "vnd0"; 212 213 v = opendisk(vn, O_RDONLY, path, sizeof(path), 0); 214 if (v == -1) 215 err(1, "open: %s", vn); 216 217 for (n = 0; ; n++) { 218 vnu.vnu_unit = argc ? -1 : n; 219 rv = ioctl(v, VNDIOCGET, &vnu); 220 if (rv == -1) { 221 if (errno == ENXIO) 222 break; 223 err(1, "VNDIOCGET"); 224 } 225 226 if (vnu.vnu_ino == 0) 227 printf("vnd%d: not in use\n", 228 vnu.vnu_unit); 229 else { 230 char *dev; 231 struct statfs *mnt = NULL; 232 int i, n; 233 234 printf("vnd%d: ", vnu.vnu_unit); 235 236 dev = devname(vnu.vnu_dev, S_IFBLK); 237 if (dev != NULL) 238 n = getmntinfo(&mnt, MNT_NOWAIT); 239 else 240 mnt = NULL; 241 if (mnt != NULL) { 242 for (i = 0; i < n; i++) { 243 if (strncmp( 244 mnt[i].f_mntfromname, 245 "/dev/", 5) == 0 && 246 strcmp( 247 mnt[i].f_mntfromname + 5, 248 dev) == 0) 249 break; 250 } 251 if (i < n) 252 printf("%s (%s) ", 253 mnt[i].f_mntonname, 254 mnt[i].f_mntfromname); 255 else 256 printf("%s ", dev); 257 } 258 else if (dev != NULL) 259 printf("%s ", dev); 260 else 261 printf("dev %d,%d ", 262 major(vnu.vnu_dev), 263 minor(vnu.vnu_dev)); 264 265 printf("inode %d\n", vnu.vnu_ino); 266 } 267 268 if (argc) 269 break; 270 } 271 close(v); 272 } 273 exit(rv); 274 } 275 276 int 277 config(dev, file, geom, action) 278 char *dev, *file, *geom; 279 int action; 280 { 281 struct vnd_ioctl vndio; 282 struct disklabel *lp; 283 char rdev[MAXPATHLEN + 1]; 284 int fd, rv; 285 286 fd = opendisk(dev, O_RDWR, rdev, sizeof(rdev), 0); 287 if (fd < 0) { 288 warn("%s: opendisk", rdev); 289 return (1); 290 } 291 292 memset(&vndio, 0, sizeof(vndio)); 293 #ifdef __GNUC__ 294 rv = 0; /* XXX */ 295 #endif 296 297 vndio.vnd_file = file; 298 if (geom != NULL) { 299 rv = getgeom(&vndio.vnd_geom, geom); 300 if (rv != 0) 301 errx(1, "invalid geometry: %s", geom); 302 vndio.vnd_flags = VNDIOF_HASGEOM; 303 } else if (tabname != NULL) { 304 lp = getdiskbyname(tabname); 305 if (lp == NULL) 306 errx(1, "unknown disk type: %s", tabname); 307 vndio.vnd_geom.vng_secsize = lp->d_secsize; 308 vndio.vnd_geom.vng_nsectors = lp->d_nsectors; 309 vndio.vnd_geom.vng_ntracks = lp->d_ntracks; 310 vndio.vnd_geom.vng_ncylinders = lp->d_ncylinders; 311 vndio.vnd_flags = VNDIOF_HASGEOM; 312 } 313 314 if (readonly) 315 vndio.vnd_flags |= VNDIOF_READONLY; 316 317 /* 318 * Clear (un-configure) the device 319 */ 320 if (action == VND_UNCONFIG) { 321 if (force) 322 vndio.vnd_flags |= VNDIOF_FORCE; 323 rv = ioctl(fd, VNDIOCCLR, &vndio); 324 if (rv) 325 warn("%s: VNDIOCCLR", rdev); 326 else if (verbose) 327 printf("%s: cleared\n", rdev); 328 } 329 /* 330 * Configure the device 331 */ 332 if (action == VND_CONFIG) { 333 int ffd; 334 335 ffd = open(file, readonly ? O_RDONLY : O_RDWR); 336 if (ffd < 0) 337 warn("%s", file); 338 else { 339 (void) close(ffd); 340 341 rv = ioctl(fd, VNDIOCSET, &vndio); 342 if (rv) 343 warn("%s: VNDIOCSET", rdev); 344 else if (verbose) { 345 printf("%s: %d bytes on %s", rdev, 346 vndio.vnd_size, file); 347 if (vndio.vnd_flags & VNDIOF_HASGEOM) 348 printf(" using geometry %d/%d/%d/%d", 349 vndio.vnd_geom.vng_secsize, 350 vndio.vnd_geom.vng_nsectors, 351 vndio.vnd_geom.vng_ntracks, 352 vndio.vnd_geom.vng_ncylinders); 353 printf("\n"); 354 } 355 } 356 } 357 358 (void) close(fd); 359 fflush(stdout); 360 return (rv < 0); 361 } 362 363 int 364 getgeom(vng, cp) 365 struct vndgeom *vng; 366 char *cp; 367 { 368 char *secsize, *nsectors, *ntracks, *ncylinders; 369 370 #define GETARG(arg) \ 371 do { \ 372 if (cp == NULL || *cp == '\0') \ 373 return (1); \ 374 arg = strsep(&cp, "/"); \ 375 if (arg == NULL) \ 376 return (1); \ 377 } while (0) 378 379 GETARG(secsize); 380 GETARG(nsectors); 381 GETARG(ntracks); 382 GETARG(ncylinders); 383 384 #undef GETARG 385 386 /* Too many? */ 387 if (cp != NULL) 388 return (1); 389 390 #define CVTARG(str, num) \ 391 do { \ 392 num = strtol(str, &cp, 10); \ 393 if (*cp != '\0') \ 394 return (1); \ 395 } while (0) 396 397 CVTARG(secsize, vng->vng_secsize); 398 CVTARG(nsectors, vng->vng_nsectors); 399 CVTARG(ntracks, vng->vng_ntracks); 400 CVTARG(ncylinders, vng->vng_ncylinders); 401 402 #undef CVTARG 403 404 return (0); 405 } 406 407 void 408 usage() 409 { 410 411 (void)fprintf(stderr, "%s%s", 412 "usage: vnconfig [-crv] [-f disktab] [-t typename] vnode_disk" 413 " regular-file [geomspec]\n", 414 " vnconfig -u [-Fv] vnode_disk\n" 415 " vnconfig -l [vnode_disk]\n"); 416 exit(1); 417 } 418
Indexes created Sat Oct 25 01:09:55 GMT 2025