show.c revision 1.23
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 1.23 2015/11/29 14:12:56 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 51static int show_label = 0; 52static int show_uuid = 0; 53static int show_guid = 0; 54static unsigned int entry = 0; 55 56const char showmsg[] = "show [-glu] [-i index] device ..."; 57 58__dead static void 59usage_show(void) 60{ 61 62 fprintf(stderr, 63 "usage: %s %s\n", getprogname(), showmsg); 64 exit(1); 65} 66 67static void 68show(void) 69{ 70 off_t start; 71 map_t *m, *p; 72 struct mbr *mbr; 73 struct gpt_ent *ent; 74 unsigned int i; 75 76 printf(" %*s", lbawidth, "start"); 77 printf(" %*s", lbawidth, "size"); 78 printf(" index contents\n"); 79 80 m = map_first(); 81 while (m != NULL) { 82 printf(" %*llu", lbawidth, (long long)m->map_start); 83 printf(" %*llu", lbawidth, (long long)m->map_size); 84 putchar(' '); 85 putchar(' '); 86 if (m->map_index > 0) 87 printf("%5d", m->map_index); 88 else 89 printf(" "); 90 putchar(' '); 91 putchar(' '); 92 switch (m->map_type) { 93 case MAP_TYPE_UNUSED: 94 printf("Unused"); 95 break; 96 case MAP_TYPE_MBR: 97 if (m->map_start != 0) 98 printf("Extended "); 99 printf("MBR"); 100 break; 101 case MAP_TYPE_PRI_GPT_HDR: 102 printf("Pri GPT header"); 103 break; 104 case MAP_TYPE_SEC_GPT_HDR: 105 printf("Sec GPT header"); 106 break; 107 case MAP_TYPE_PRI_GPT_TBL: 108 printf("Pri GPT table"); 109 break; 110 case MAP_TYPE_SEC_GPT_TBL: 111 printf("Sec GPT table"); 112 break; 113 case MAP_TYPE_MBR_PART: 114 p = m->map_data; 115 if (p->map_start != 0) 116 printf("Extended "); 117 printf("MBR part "); 118 mbr = p->map_data; 119 for (i = 0; i < 4; i++) { 120 start = le16toh(mbr->mbr_part[i].part_start_hi); 121 start = (start << 16) + 122 le16toh(mbr->mbr_part[i].part_start_lo); 123 if (m->map_start == p->map_start + start) 124 break; 125 } 126 printf("%d", mbr->mbr_part[i].part_typ); 127 break; 128 case MAP_TYPE_GPT_PART: 129 printf("GPT part "); 130 ent = m->map_data; 131 if (show_label) { 132 printf("- \"%s\"", 133 utf16_to_utf8(ent->ent_name)); 134 } else if (show_guid) { 135 char buf[128]; 136 gpt_uuid_snprintf( 137 buf, sizeof(buf), "%d", ent->ent_guid); 138 printf("- %s", buf); 139 } else { 140 char buf[128]; 141 if (show_uuid || gpt_uuid_snprintf(buf, 142 sizeof(buf), "%ls", ent->ent_type) == -1) 143 gpt_uuid_snprintf(buf, sizeof(buf), 144 "%d", ent->ent_type); 145 printf("- %s", buf); 146 } 147 break; 148 case MAP_TYPE_PMBR: 149 printf("PMBR"); 150 break; 151 default: 152 printf("Unknown %#x", m->map_type); 153 break; 154 } 155 putchar('\n'); 156 m = m->map_next; 157 } 158} 159 160static void 161show_one(void) 162{ 163 map_t *m; 164 struct gpt_ent *ent; 165 char s1[128], s2[128]; 166#ifdef HN_AUTOSCALE 167 char human_num[5]; 168#endif 169 170 for (m = map_first(); m != NULL; m = m->map_next) 171 if (entry == m->map_index) 172 break; 173 if (m == NULL) { 174 warnx("%s: error: could not find index %d", 175 device_name, entry); 176 return; 177 } 178 ent = m->map_data; 179 180 printf("Details for index %d:\n", entry); 181#ifdef HN_AUTOSCALE 182 if (humanize_number(human_num, 5, (int64_t)(m->map_start * secsz), 183 "", HN_AUTOSCALE, HN_NOSPACE|HN_B) < 0) 184 human_num[0] = '\0'; 185 if (human_num[0] != '\0') 186 printf("Start: %llu (%s)\n", (long long)m->map_start, 187 human_num); 188 else 189#endif 190 printf("Start: %llu\n", (long long)m->map_start); 191#ifdef HN_AUTOSCALE 192 if (humanize_number(human_num, 5, (int64_t)(m->map_size * secsz), 193 "", HN_AUTOSCALE, HN_NOSPACE|HN_B) < 0) 194 human_num[0] = '\0'; 195 if (human_num[0] != '\0') 196 printf("Size: %llu (%s)\n", (long long)m->map_size, human_num); 197 else 198#endif 199 printf("Size: %llu\n", (long long)m->map_size); 200 201 gpt_uuid_snprintf(s1, sizeof(s1), "%s", ent->ent_type); 202 gpt_uuid_snprintf(s2, sizeof(s2), "%d", ent->ent_type); 203 if (strcmp(s1, s2) == 0) 204 strlcpy(s1, "unknown", sizeof(s1)); 205 printf("Type: %s (%s)\n", s1, s2); 206 207 gpt_uuid_snprintf(s2, sizeof(s1), "%d", ent->ent_guid); 208 printf("GUID: %s\n", s2); 209 210 printf("Label: %s\n", utf16_to_utf8(ent->ent_name)); 211 212 printf("Attributes:\n"); 213 if (ent->ent_attr == 0) 214 printf(" None\n"); 215 else { 216 if (ent->ent_attr & GPT_ENT_ATTR_REQUIRED_PARTITION) 217 printf(" required for platform to function\n"); 218 if (ent->ent_attr & GPT_ENT_ATTR_NO_BLOCK_IO_PROTOCOL) 219 printf(" UEFI won't recognize file system\n"); 220 if (ent->ent_attr & GPT_ENT_ATTR_LEGACY_BIOS_BOOTABLE) 221 printf(" legacy BIOS boot partition\n"); 222 if (ent->ent_attr & GPT_ENT_ATTR_BOOTME) 223 printf(" indicates a bootable partition\n"); 224 if (ent->ent_attr & GPT_ENT_ATTR_BOOTONCE) 225 printf(" attempt to boot this partition only once\n"); 226 if (ent->ent_attr & GPT_ENT_ATTR_BOOTFAILED) 227 printf(" partition that was marked bootonce but failed to boot\n"); 228 } 229} 230 231int 232cmd_show(int argc, char *argv[]) 233{ 234 char *p; 235 int ch, fd; 236 237 while ((ch = getopt(argc, argv, "gi:lu")) != -1) { 238 switch(ch) { 239 case 'g': 240 show_guid = 1; 241 break; 242 case 'i': 243 if (entry > 0) 244 usage_show(); 245 entry = strtoul(optarg, &p, 10); 246 if (*p != 0 || entry < 1) 247 usage_show(); 248 break; 249 case 'l': 250 show_label = 1; 251 break; 252 case 'u': 253 show_uuid = 1; 254 break; 255 default: 256 usage_show(); 257 } 258 } 259 260 if (argc == optind) 261 usage_show(); 262 263 while (optind < argc) { 264 fd = gpt_open(argv[optind++], 0); 265 if (fd == -1) 266 continue; 267 268 if (entry > 0) 269 show_one(); 270 else 271 show(); 272 273 gpt_close(fd); 274 } 275 276 return (0); 277} 278