show.c revision 1.44
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 1.44 2019/03/26 11:23:55 martin Exp $"); 37 #endif 38 39 #include <sys/bootblock.h> 40 #include <sys/types.h> 41 42 #include <err.h> 43 #include <stddef.h> 44 #include <stdio.h> 45 #include <stdlib.h> 46 #include <string.h> 47 #include <unistd.h> 48 49 50 #include "map.h" 51 #include "gpt.h" 52 #include "gpt_private.h" 53 54 static int cmd_show(gpt_t, int, char *[]); 55 56 static const char *showhelp[] = { 57 "[-aglu] [-i index]", 58 }; 59 60 #define SHOW_UUID 1 61 #define SHOW_GUID 2 62 #define SHOW_LABEL 4 63 #define SHOW_ALL 8 64 65 struct gpt_cmd c_show = { 66 "show", 67 cmd_show, 68 showhelp, __arraycount(showhelp), 69 GPT_READONLY, 70 }; 71 72 #define usage() gpt_usage(NULL, &c_show) 73 74 static void 75 print_part_type(int map_type, int flags, void *map_data, off_t map_start) 76 { 77 off_t start; 78 map_t p; 79 struct mbr *mbr; 80 struct gpt_ent *ent; 81 unsigned int i; 82 char buf[128], *b = buf; 83 uint8_t utfbuf[__arraycount(ent->ent_name) * 3 + 1]; 84 85 switch (map_type) { 86 case MAP_TYPE_UNUSED: 87 printf("Unused"); 88 break; 89 case MAP_TYPE_MBR: 90 if (map_start != 0) 91 printf("Extended "); 92 printf("MBR"); 93 break; 94 case MAP_TYPE_PRI_GPT_HDR: 95 printf("Pri GPT header"); 96 break; 97 case MAP_TYPE_SEC_GPT_HDR: 98 printf("Sec GPT header"); 99 break; 100 case MAP_TYPE_PRI_GPT_TBL: 101 printf("Pri GPT table"); 102 break; 103 case MAP_TYPE_SEC_GPT_TBL: 104 printf("Sec GPT table"); 105 break; 106 case MAP_TYPE_MBR_PART: 107 p = map_data; 108 if (p->map_start != 0) 109 printf("Extended "); 110 printf("MBR part "); 111 mbr = p->map_data; 112 for (i = 0; i < 4; i++) { 113 start = le16toh(mbr->mbr_part[i].part_start_hi); 114 start = (start << 16) + 115 le16toh(mbr->mbr_part[i].part_start_lo); 116 if (map_start == p->map_start + start) 117 break; 118 } 119 if (i == 4) { 120 /* wasn't there */ 121 printf("[partition not found?]"); 122 } else { 123 printf("%d%s", mbr->mbr_part[i].part_typ, 124 mbr->mbr_part[i].part_flag == 0x80 ? 125 " (active)" : ""); 126 } 127 break; 128 case MAP_TYPE_GPT_PART: 129 printf("GPT part "); 130 ent = map_data; 131 if (flags & SHOW_LABEL) { 132 utf16_to_utf8(ent->ent_name, 133 __arraycount(ent->ent_name), utfbuf, 134 __arraycount(utfbuf)); 135 b = (char *)utfbuf; 136 } else if (flags & SHOW_GUID) { 137 gpt_uuid_snprintf( buf, sizeof(buf), "%d", 138 ent->ent_guid); 139 } else if (flags & SHOW_UUID) { 140 gpt_uuid_snprintf(buf, sizeof(buf), 141 "%d", ent->ent_type); 142 } else { 143 gpt_uuid_snprintf(buf, sizeof(buf), "%ls", 144 ent->ent_type); 145 } 146 printf("- %s", b); 147 break; 148 case MAP_TYPE_PMBR: 149 printf("PMBR"); 150 mbr = map_data; 151 if (mbr->mbr_part[0].part_typ == MBR_PTYPE_PMBR && 152 mbr->mbr_part[0].part_flag == 0x80) 153 printf(" (active)"); 154 break; 155 default: 156 printf("Unknown %#x", map_type); 157 break; 158 } 159 } 160 161 static int 162 show(gpt_t gpt, int xshow) 163 { 164 map_t m; 165 166 printf(" %*s", gpt->lbawidth, "start"); 167 printf(" %*s", gpt->lbawidth, "size"); 168 printf(" index contents\n"); 169 170 m = map_first(gpt); 171 while (m != NULL) { 172 printf(" %*llu", gpt->lbawidth, (long long)m->map_start); 173 printf(" %*llu", gpt->lbawidth, (long long)m->map_size); 174 putchar(' '); 175 putchar(' '); 176 if (m->map_index > 0) 177 printf("%5d", m->map_index); 178 else 179 printf(" "); 180 putchar(' '); 181 putchar(' '); 182 print_part_type(m->map_type, xshow, m->map_data, m->map_start); 183 putchar('\n'); 184 m = m->map_next; 185 } 186 return 0; 187 } 188 189 static void 190 gpt_show_sec_num(const char *prompt, int64_t secsize, off_t num) 191 { 192 #ifdef HN_AUTOSCALE 193 char human_num[5]; 194 if (humanize_number(human_num, sizeof(human_num), 195 (int64_t)num*secsize, 196 "", HN_AUTOSCALE, HN_NOSPACE|HN_B) < 0) 197 human_num[0] = '\0'; 198 #endif 199 printf("%s: %" PRIu64, prompt, (uint64_t)num); 200 #ifdef HN_AUTOSCALE 201 if (human_num[0] != '\0') 202 printf(" (%s)", human_num); 203 #endif 204 printf("\n"); 205 } 206 207 static int 208 show_one(gpt_t gpt, unsigned int entry) 209 { 210 map_t m; 211 struct gpt_ent *ent; 212 char s1[128], s2[128]; 213 uint8_t utfbuf[__arraycount(ent->ent_name) * 3 + 1]; 214 215 for (m = map_first(gpt); m != NULL; m = m->map_next) 216 if (entry == m->map_index) 217 break; 218 if (m == NULL) { 219 gpt_warnx(gpt, "Could not find index %d", entry); 220 return -1; 221 } 222 ent = m->map_data; 223 224 printf("Details for index %d:\n", entry); 225 gpt_show_sec_num("Start", gpt->secsz, m->map_start); 226 gpt_show_sec_num("Size", gpt->secsz, m->map_size); 227 228 gpt_uuid_snprintf(s1, sizeof(s1), "%s", ent->ent_type); 229 gpt_uuid_snprintf(s2, sizeof(s2), "%d", ent->ent_type); 230 if (strcmp(s1, s2) == 0) 231 strlcpy(s1, "unknown", sizeof(s1)); 232 printf("Type: %s (%s)\n", s1, s2); 233 234 gpt_uuid_snprintf(s2, sizeof(s1), "%d", ent->ent_guid); 235 printf("GUID: %s\n", s2); 236 237 utf16_to_utf8(ent->ent_name, __arraycount(ent->ent_name), utfbuf, 238 __arraycount(utfbuf)); 239 printf("Label: %s\n", (char *)utfbuf); 240 241 printf("Attributes: "); 242 if (ent->ent_attr == 0) { 243 printf("None\n"); 244 } else { 245 char buf[1024]; 246 printf("%s\n", gpt_attr_list(buf, sizeof(buf), ent->ent_attr)); 247 } 248 249 return 0; 250 } 251 252 static int 253 show_all(gpt_t gpt) 254 { 255 map_t m; 256 struct gpt_ent *ent; 257 char s1[128], s2[128]; 258 #ifdef HN_AUTOSCALE 259 char human_num[8]; 260 #endif 261 uint8_t utfbuf[__arraycount(ent->ent_name) * 3 + 1]; 262 #define PFX " " 263 264 printf(" %*s", gpt->lbawidth, "start"); 265 printf(" %*s", gpt->lbawidth, "size"); 266 printf(" index contents\n"); 267 268 m = map_first(gpt); 269 while (m != NULL) { 270 printf(" %*llu", gpt->lbawidth, (long long)m->map_start); 271 printf(" %*llu", gpt->lbawidth, (long long)m->map_size); 272 putchar(' '); 273 putchar(' '); 274 if (m->map_index > 0) { 275 printf("%5d ", m->map_index); 276 print_part_type(m->map_type, 0, m->map_data, 277 m->map_start); 278 putchar('\n'); 279 280 ent = m->map_data; 281 282 gpt_uuid_snprintf(s1, sizeof(s1), "%s", ent->ent_type); 283 gpt_uuid_snprintf(s2, sizeof(s2), "%d", ent->ent_type); 284 if (strcmp(s1, s2) == 0) 285 strlcpy(s1, "unknown", sizeof(s1)); 286 printf(PFX "Type: %s\n", s1); 287 printf(PFX "TypeID: %s\n", s2); 288 289 gpt_uuid_snprintf(s2, sizeof(s1), "%d", ent->ent_guid); 290 printf(PFX "GUID: %s\n", s2); 291 292 printf(PFX "Size: "); 293 #ifdef HN_AUTOSCALE 294 if (humanize_number(human_num, sizeof(human_num), 295 (int64_t)(m->map_size * gpt->secsz), 296 "", HN_AUTOSCALE, HN_B) < 0) { 297 #endif 298 printf("%ju", 299 (int64_t)(m->map_size * gpt->secsz)); 300 #ifdef HN_AUTOSCALE 301 } else { 302 printf("%s", human_num); 303 } 304 #endif 305 putchar('\n'); 306 307 utf16_to_utf8(ent->ent_name, 308 __arraycount(ent->ent_name), utfbuf, 309 __arraycount(utfbuf)); 310 printf(PFX "Label: %s\n", (char *)utfbuf); 311 312 printf(PFX "Attributes: "); 313 if (ent->ent_attr == 0) { 314 printf("None\n"); 315 } else { 316 char buf[1024]; 317 318 printf("%s\n", gpt_attr_list(buf, sizeof(buf), 319 ent->ent_attr)); 320 } 321 } else { 322 printf(" "); 323 print_part_type(m->map_type, 0, m->map_data, 324 m->map_start); 325 putchar('\n'); 326 } 327 m = m->map_next; 328 } 329 return 0; 330 } 331 332 static int 333 cmd_show(gpt_t gpt, int argc, char *argv[]) 334 { 335 int ch; 336 int xshow = 0; 337 unsigned int entry = 0; 338 off_t start = 0; 339 map_t m; 340 341 while ((ch = getopt(argc, argv, "gi:b:lua")) != -1) { 342 switch(ch) { 343 case 'a': 344 xshow |= SHOW_ALL; 345 break; 346 case 'g': 347 xshow |= SHOW_GUID; 348 break; 349 case 'i': 350 if (gpt_uint_get(gpt, &entry) == -1) 351 return usage(); 352 break; 353 case 'b': 354 if (gpt_human_get(gpt, &start) == -1) 355 return usage(); 356 break; 357 case 'l': 358 xshow |= SHOW_LABEL; 359 break; 360 case 'u': 361 xshow |= SHOW_UUID; 362 break; 363 default: 364 return usage(); 365 } 366 } 367 368 if (argc != optind) 369 return usage(); 370 371 if (map_find(gpt, MAP_TYPE_PRI_GPT_HDR) == NULL) 372 printf("GPT not found, displaying data from MBR.\n\n"); 373 374 if (xshow & SHOW_ALL) 375 return show_all(gpt); 376 377 if (start > 0) { 378 for (m = map_first(gpt); m != NULL; m = m->map_next) { 379 if (m->map_type != MAP_TYPE_GPT_PART || 380 m->map_index < 1) 381 continue; 382 if (start != m->map_start) 383 continue; 384 entry = m->map_index; 385 break; 386 } 387 } 388 389 return entry > 0 ? show_one(gpt, entry) : show(gpt, xshow); 390 } 391
Indexes created Thu Sep 25 16:09:42 GMT 2025