show.c revision 1.16
1 /*- 2 * Copyright (c) 2002 Marcel Moolenaar 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #if HAVE_NBTOOL_CONFIG_H 28 #include "nbtool_config.h" 29 #endif 30 31 #include <sys/cdefs.h> 32 #ifdef __FBSDID 33 __FBSDID("$FreeBSD: src/sbin/gpt/show.c,v 1.14 2006/06/22 22:22:32 marcel Exp $"); 34 #endif 35 #ifdef __RCSID 36 __RCSID("$NetBSD: show.c,v 1.16 2014/09/29 20:28:57 christos Exp $"); 37 #endif 38 39 #include <sys/types.h> 40 41 #include <err.h> 42 #include <stddef.h> 43 #include <stdio.h> 44 #include <stdlib.h> 45 #include <string.h> 46 #include <unistd.h> 47 48 #include "map.h" 49 #include "gpt.h" 50 51 static int show_label = 0; 52 static int show_uuid = 0; 53 static int show_guid = 0; 54 static unsigned int entry = 0; 55 56 const char showmsg[] = "show [-glu] [-i index] device ..."; 57 58 __dead static void 59 usage_show(void) 60 { 61 62 fprintf(stderr, 63 "usage: %s %s\n", getprogname(), showmsg); 64 exit(1); 65 } 66 67 static const char * 68 friendly(uuid_t *t) 69 { 70 static const uuid_t efi_slice = GPT_ENT_TYPE_EFI; 71 static const uuid_t bios_boot = GPT_ENT_TYPE_BIOS; 72 static const uuid_t msdata = GPT_ENT_TYPE_MS_BASIC_DATA; 73 static const uuid_t freebsd = GPT_ENT_TYPE_FREEBSD; 74 static const uuid_t hfs = GPT_ENT_TYPE_APPLE_HFS; 75 static const uuid_t linuxdata = GPT_ENT_TYPE_LINUX_DATA; 76 static const uuid_t linuxswap = GPT_ENT_TYPE_LINUX_SWAP; 77 static const uuid_t msr = GPT_ENT_TYPE_MS_RESERVED; 78 static const uuid_t swap = GPT_ENT_TYPE_FREEBSD_SWAP; 79 static const uuid_t ufs = GPT_ENT_TYPE_FREEBSD_UFS; 80 static const uuid_t vinum = GPT_ENT_TYPE_FREEBSD_VINUM; 81 static const uuid_t zfs = GPT_ENT_TYPE_FREEBSD_ZFS; 82 static const uuid_t nb_swap = GPT_ENT_TYPE_NETBSD_SWAP; 83 static const uuid_t nb_ffs = GPT_ENT_TYPE_NETBSD_FFS; 84 static const uuid_t nb_lfs = GPT_ENT_TYPE_NETBSD_LFS; 85 static const uuid_t nb_raid = GPT_ENT_TYPE_NETBSD_RAIDFRAME; 86 static const uuid_t nb_ccd = GPT_ENT_TYPE_NETBSD_CCD; 87 static const uuid_t nb_cgd = GPT_ENT_TYPE_NETBSD_CGD; 88 static char buf[80]; 89 char *s; 90 91 if (show_uuid) 92 goto unfriendly; 93 94 if (uuid_equal(t, &efi_slice, NULL)) 95 return ("EFI System"); 96 if (uuid_equal(t, &bios_boot, NULL)) 97 return ("BIOS Boot"); 98 if (uuid_equal(t, &nb_swap, NULL)) 99 return ("NetBSD swap"); 100 if (uuid_equal(t, &nb_ffs, NULL)) 101 return ("NetBSD FFSv1/FFSv2"); 102 if (uuid_equal(t, &nb_lfs, NULL)) 103 return ("NetBSD LFS"); 104 if (uuid_equal(t, &nb_raid, NULL)) 105 return ("NetBSD RAIDFrame component"); 106 if (uuid_equal(t, &nb_ccd, NULL)) 107 return ("NetBSD ccd component"); 108 if (uuid_equal(t, &nb_cgd, NULL)) 109 return ("NetBSD Cryptographic Disk"); 110 if (uuid_equal(t, &swap, NULL)) 111 return ("FreeBSD swap"); 112 if (uuid_equal(t, &ufs, NULL)) 113 return ("FreeBSD UFS/UFS2"); 114 if (uuid_equal(t, &vinum, NULL)) 115 return ("FreeBSD vinum"); 116 if (uuid_equal(t, &zfs, NULL)) 117 return ("FreeBSD ZFS"); 118 if (uuid_equal(t, &freebsd, NULL)) 119 return ("FreeBSD legacy"); 120 if (uuid_equal(t, &msdata, NULL)) 121 return ("Windows basic data"); 122 if (uuid_equal(t, &msr, NULL)) 123 return ("Windows reserved"); 124 if (uuid_equal(t, &linuxdata, NULL)) 125 return ("Linux data"); 126 if (uuid_equal(t, &linuxswap, NULL)) 127 return ("Linux swap"); 128 if (uuid_equal(t, &hfs, NULL)) 129 return ("Apple HFS"); 130 131 unfriendly: 132 uuid_to_string(t, &s, NULL); 133 strlcpy(buf, s, sizeof buf); 134 free(s); 135 return (buf); 136 } 137 138 static void 139 show(void) 140 { 141 uuid_t guid, type; 142 off_t start; 143 map_t *m, *p; 144 struct mbr *mbr; 145 struct gpt_ent *ent; 146 unsigned int i; 147 char *s; 148 149 printf(" %*s", lbawidth, "start"); 150 printf(" %*s", lbawidth, "size"); 151 printf(" index contents\n"); 152 153 m = map_first(); 154 while (m != NULL) { 155 printf(" %*llu", lbawidth, (long long)m->map_start); 156 printf(" %*llu", lbawidth, (long long)m->map_size); 157 putchar(' '); 158 putchar(' '); 159 if (m->map_index > 0) 160 printf("%5d", m->map_index); 161 else 162 printf(" "); 163 putchar(' '); 164 putchar(' '); 165 switch (m->map_type) { 166 case MAP_TYPE_MBR: 167 if (m->map_start != 0) 168 printf("Extended "); 169 printf("MBR"); 170 break; 171 case MAP_TYPE_PRI_GPT_HDR: 172 printf("Pri GPT header"); 173 break; 174 case MAP_TYPE_SEC_GPT_HDR: 175 printf("Sec GPT header"); 176 break; 177 case MAP_TYPE_PRI_GPT_TBL: 178 printf("Pri GPT table"); 179 break; 180 case MAP_TYPE_SEC_GPT_TBL: 181 printf("Sec GPT table"); 182 break; 183 case MAP_TYPE_MBR_PART: 184 p = m->map_data; 185 if (p->map_start != 0) 186 printf("Extended "); 187 printf("MBR part "); 188 mbr = p->map_data; 189 for (i = 0; i < 4; i++) { 190 start = le16toh(mbr->mbr_part[i].part_start_hi); 191 start = (start << 16) + 192 le16toh(mbr->mbr_part[i].part_start_lo); 193 if (m->map_start == p->map_start + start) 194 break; 195 } 196 printf("%d", mbr->mbr_part[i].part_typ); 197 break; 198 case MAP_TYPE_GPT_PART: 199 printf("GPT part "); 200 ent = m->map_data; 201 if (show_label) { 202 printf("- \"%s\"", 203 utf16_to_utf8(ent->ent_name)); 204 } else if (show_guid) { 205 le_uuid_dec(ent->ent_guid, &guid); 206 uuid_to_string(&guid, &s, NULL); 207 printf("- %s", s); 208 free(s); 209 } else { 210 le_uuid_dec(ent->ent_type, &type); 211 printf("- %s", friendly(&type)); 212 } 213 break; 214 case MAP_TYPE_PMBR: 215 printf("PMBR"); 216 break; 217 } 218 putchar('\n'); 219 m = m->map_next; 220 } 221 } 222 223 static void 224 show_one(void) 225 { 226 uuid_t guid, type; 227 map_t *m; 228 struct gpt_ent *ent; 229 const char *s1; 230 char *s2; 231 #ifdef HN_AUTOSCALE 232 char *human_num[5]; 233 #endif 234 235 for (m = map_first(); m != NULL; m = m->map_next) 236 if (entry == m->map_index) 237 break; 238 if (m == NULL) { 239 warnx("%s: error: could not find index %d", 240 device_name, entry); 241 return; 242 } 243 ent = m->map_data; 244 245 printf("Details for index %d:\n", entry); 246 #ifdef HN_AUTOSCALE 247 if (humanize_number(human_num, 5, (int64_t)(m->map_start * secsz), 248 "", HN_AUTOSCALE, HN_NOSPACE|HN_B) < 0) 249 human_num[0] = '\0'; 250 if (human_num[0] != '\0') 251 printf("Start: %llu (%s)\n", (long long)m->map_start, 252 human_num); 253 else 254 #endif 255 printf("Start: %llu\n", (long long)m->map_start); 256 #ifdef HN_AUTOSCALE 257 if (humanize_number(human_num, 5, (int64_t)(m->map_size * secsz), 258 "", HN_AUTOSCALE, HN_NOSPACE|HN_B) < 0) 259 human_num[0] = '\0'; 260 if (human_num[0] != '\0') 261 printf("Size: %llu (%s)\n", (long long)m->map_size, human_num); 262 else 263 #endif 264 printf("Size: %llu\n", (long long)m->map_size); 265 266 le_uuid_dec(ent->ent_type, &type); 267 s1 = friendly(&type); 268 uuid_to_string(&type, &s2, NULL); 269 if (strcmp(s1, s2) == 0) 270 s1 = "unknown"; 271 printf("Type: %s (%s)\n", s1, s2); 272 free(s2); 273 274 le_uuid_dec(ent->ent_guid, &guid); 275 uuid_to_string(&guid, &s2, NULL); 276 printf("GUID: %s\n", s2); 277 free(s2); 278 279 printf("Label: %s\n", utf16_to_utf8(ent->ent_name)); 280 281 printf("Attributes:\n"); 282 if (ent->ent_attr == 0) 283 printf(" None\n"); 284 else { 285 if (ent->ent_attr & GPT_ENT_ATTR_REQUIRED_PARTITION) 286 printf(" required for platform to function\n"); 287 if (ent->ent_attr & GPT_ENT_ATTR_NO_BLOCK_IO_PROTOCOL) 288 printf(" UEFI won't recognize file system\n"); 289 if (ent->ent_attr & GPT_ENT_ATTR_LEGACY_BIOS_BOOTABLE) 290 printf(" legacy BIOS boot partition\n"); 291 if (ent->ent_attr & GPT_ENT_ATTR_BOOTME) 292 printf(" indicates a bootable partition\n"); 293 if (ent->ent_attr & GPT_ENT_ATTR_BOOTONCE) 294 printf(" attempt to boot this partition only once\n"); 295 if (ent->ent_attr & GPT_ENT_ATTR_BOOTFAILED) 296 printf(" partition that was marked bootonce but failed to boot\n"); 297 } 298 } 299 300 int 301 cmd_show(int argc, char *argv[]) 302 { 303 char *p; 304 int ch, fd; 305 306 while ((ch = getopt(argc, argv, "gi:lu")) != -1) { 307 switch(ch) { 308 case 'g': 309 show_guid = 1; 310 break; 311 case 'i': 312 if (entry > 0) 313 usage_show(); 314 entry = strtoul(optarg, &p, 10); 315 if (*p != 0 || entry < 1) 316 usage_show(); 317 break; 318 case 'l': 319 show_label = 1; 320 break; 321 case 'u': 322 show_uuid = 1; 323 break; 324 default: 325 usage_show(); 326 } 327 } 328 329 if (argc == optind) 330 usage_show(); 331 332 while (optind < argc) { 333 fd = gpt_open(argv[optind++]); 334 if (fd == -1) { 335 warn("unable to open device '%s'", device_name); 336 continue; 337 } 338 339 if (entry > 0) 340 show_one(); 341 else 342 show(); 343 344 gpt_close(fd); 345 } 346 347 return (0); 348 } 349
Indexes created Wed Sep 24 05:09:52 GMT 2025