vnconfig.c revision 1.18
1 /* $NetBSD: vnconfig.c,v 1.18 2000/02/16 06:52:31 enami 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) 1993 University of Utah. 41 * Copyright (c) 1990, 1993 42 * The Regents of the University of California. All rights reserved. 43 * 44 * This code is derived from software contributed to Berkeley by 45 * the Systems Programming Group of the University of Utah Computer 46 * Science Department. 47 * 48 * Redistribution and use in source and binary forms, with or without 49 * modification, are permitted provided that the following conditions 50 * are met: 51 * 1. Redistributions of source code must retain the above copyright 52 * notice, this list of conditions and the following disclaimer. 53 * 2. Redistributions in binary form must reproduce the above copyright 54 * notice, this list of conditions and the following disclaimer in the 55 * documentation and/or other materials provided with the distribution. 56 * 3. All advertising materials mentioning features or use of this software 57 * must display the following acknowledgement: 58 * This product includes software developed by the University of 59 * California, Berkeley and its contributors. 60 * 4. Neither the name of the University nor the names of its contributors 61 * may be used to endorse or promote products derived from this software 62 * without specific prior written permission. 63 * 64 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 65 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 66 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 67 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 68 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 69 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 70 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 71 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 72 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 73 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 74 * SUCH DAMAGE. 75 * 76 * from: Utah $Hdr: vnconfig.c 1.1 93/12/15$ 77 * 78 * @(#)vnconfig.c 8.1 (Berkeley) 12/15/93 79 */ 80 81 #define __POOL_EXPOSE /* dev/vndvar.h uses struct pool */ 82 83 #include <sys/param.h> 84 #include <sys/ioctl.h> 85 #include <sys/mount.h> 86 #include <sys/stat.h> 87 #include <sys/buf.h> 88 #include <sys/disklabel.h> 89 #include <sys/disk.h> 90 91 #include <dev/vndvar.h> 92 93 #include <disktab.h> 94 #include <err.h> 95 #include <errno.h> 96 #include <fcntl.h> 97 #include <stdio.h> 98 #include <stdlib.h> 99 #include <string.h> 100 #include <unistd.h> 101 #include <util.h> 102 103 #define VND_CONFIG 1 104 #define VND_UNCONFIG 2 105 106 int verbose = 0; 107 char *tabname; 108 109 int config __P((char *, char *, char *, int)); 110 int getgeom __P((struct vndgeom *, char *)); 111 int main __P((int, char **)); 112 char *rawdevice __P((char *)); 113 void usage __P((void)); 114 115 int 116 main(argc, argv) 117 int argc; 118 char *argv[]; 119 { 120 int ch, rv, action = VND_CONFIG; 121 122 while ((ch = getopt(argc, argv, "ct:uv")) != -1) { 123 switch (ch) { 124 case 'c': 125 action = VND_CONFIG; 126 break; 127 case 't': 128 tabname = optarg; 129 break; 130 case 'u': 131 action = VND_UNCONFIG; 132 break; 133 case 'v': 134 verbose = 1; 135 break; 136 default: 137 case '?': 138 usage(); 139 /* NOTREACHED */ 140 } 141 } 142 argc -= optind; 143 argv += optind; 144 145 if (action == VND_CONFIG) { 146 if ((argc < 2 || argc > 3) || 147 (argc == 3 && tabname != NULL)) 148 usage(); 149 rv = config(argv[0], argv[1], (argc == 3) ? argv[2] : NULL, 150 action); 151 } else { 152 if (argc != 1 || tabname != NULL) 153 usage(); 154 rv = config(argv[0], NULL, NULL, action); 155 } 156 exit(rv); 157 } 158 159 int 160 config(dev, file, geom, action) 161 char *dev, *file, *geom; 162 int action; 163 { 164 struct vnd_ioctl vndio; 165 struct disklabel *lp; 166 char rdev[MAXPATHLEN + 1]; 167 int fd, rv; 168 169 fd = opendisk(dev, O_RDWR, rdev, sizeof(rdev), 0); 170 if (fd < 0) { 171 warn("%s: opendisk", rdev); 172 return (1); 173 } 174 175 memset(&vndio, 0, sizeof(vndio)); 176 #ifdef __GNUC__ 177 rv = 0; /* XXX */ 178 #endif 179 180 vndio.vnd_file = file; 181 if (geom != NULL) { 182 rv = getgeom(&vndio.vnd_geom, geom); 183 if (rv != 0) 184 errx(1, "invalid geometry: %s", geom); 185 vndio.vnd_flags = VNDIOF_HASGEOM; 186 } else if (tabname != NULL) { 187 lp = getdiskbyname(tabname); 188 if (lp == NULL) 189 errx(1, "unknown disk type: %s", tabname); 190 vndio.vnd_geom.vng_secsize = lp->d_secsize; 191 vndio.vnd_geom.vng_nsectors = lp->d_nsectors; 192 vndio.vnd_geom.vng_ntracks = lp->d_ntracks; 193 vndio.vnd_geom.vng_ncylinders = lp->d_ncylinders; 194 vndio.vnd_flags = VNDIOF_HASGEOM; 195 } 196 197 /* 198 * Clear (un-configure) the device 199 */ 200 if (action == VND_UNCONFIG) { 201 rv = ioctl(fd, VNDIOCCLR, &vndio); 202 if (rv) 203 warn("%s: VNDIOCCLR", rdev); 204 else if (verbose) 205 printf("%s: cleared\n", rdev); 206 } 207 /* 208 * Configure the device 209 */ 210 if (action == VND_CONFIG) { 211 rv = ioctl(fd, VNDIOCSET, &vndio); 212 if (rv) 213 warn("%s: VNDIOCSET", rdev); 214 else if (verbose) { 215 printf("%s: %d bytes on %s", rdev, vndio.vnd_size, 216 file); 217 if (vndio.vnd_flags & VNDIOF_HASGEOM) 218 printf(" using geometry %d/%d/%d/%d", 219 vndio.vnd_geom.vng_secsize, 220 vndio.vnd_geom.vng_nsectors, 221 vndio.vnd_geom.vng_ntracks, 222 vndio.vnd_geom.vng_ncylinders); 223 printf("\n"); 224 } 225 226 } 227 228 (void) close(fd); 229 fflush(stdout); 230 return (rv < 0); 231 } 232 233 int 234 getgeom(vng, cp) 235 struct vndgeom *vng; 236 char *cp; 237 { 238 char *secsize, *nsectors, *ntracks, *ncylinders; 239 240 #define GETARG(arg) \ 241 do { \ 242 if (cp == NULL || *cp == '\0') \ 243 return (1); \ 244 arg = strsep(&cp, "/"); \ 245 if (arg == NULL) \ 246 return (1); \ 247 } while (0) 248 249 GETARG(secsize); 250 GETARG(nsectors); 251 GETARG(ntracks); 252 GETARG(ncylinders); 253 254 #undef GETARG 255 256 /* Too many? */ 257 if (cp != NULL) 258 return (1); 259 260 #define CVTARG(str, num) \ 261 do { \ 262 num = strtol(str, &cp, 10); \ 263 if (*cp != '\0') \ 264 return (1); \ 265 } while (0) 266 267 CVTARG(secsize, vng->vng_secsize); 268 CVTARG(nsectors, vng->vng_nsectors); 269 CVTARG(ntracks, vng->vng_ntracks); 270 CVTARG(ncylinders, vng->vng_ncylinders); 271 272 #undef CVTARG 273 274 return (0); 275 } 276 277 void 278 usage() 279 { 280 281 (void)fprintf(stderr, "%s%s", 282 "usage: vnconfig [-c] [-t typename] [-v] special-file" 283 " regular-file [geomspec]\n", 284 " vnconfig -u [-v] special-file\n"); 285 exit(1); 286 } 287
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