show.c revision 1.27
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 1.27 2015/12/02 04:07:11 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#include "gpt_private.h" 51 52static int show_label = 0; 53static int show_uuid = 0; 54static int show_guid = 0; 55static unsigned int entry = 0; 56 57static int cmd_show(gpt_t, int, char *[]); 58 59static const char *showhelp[] = { 60 "[-glu] [-i index]", 61}; 62 63struct gpt_cmd c_show = { 64 "show", 65 cmd_show, 66 showhelp, __arraycount(showhelp), 67 GPT_READONLY, 68}; 69 70#define usage() gpt_usage(NULL, &c_show) 71 72static int 73show(gpt_t gpt) 74{ 75 off_t start; 76 map_t m, p; 77 struct mbr *mbr; 78 struct gpt_ent *ent; 79 unsigned int i; 80 uint8_t utfbuf[__arraycount(ent->ent_name) * 3 + 1]; 81 82 printf(" %*s", gpt->lbawidth, "start"); 83 printf(" %*s", gpt->lbawidth, "size"); 84 printf(" index contents\n"); 85 86 m = map_first(gpt); 87 while (m != NULL) { 88 printf(" %*llu", gpt->lbawidth, (long long)m->map_start); 89 printf(" %*llu", gpt->lbawidth, (long long)m->map_size); 90 putchar(' '); 91 putchar(' '); 92 if (m->map_index > 0) 93 printf("%5d", m->map_index); 94 else 95 printf(" "); 96 putchar(' '); 97 putchar(' '); 98 switch (m->map_type) { 99 case MAP_TYPE_UNUSED: 100 printf("Unused"); 101 break; 102 case MAP_TYPE_MBR: 103 if (m->map_start != 0) 104 printf("Extended "); 105 printf("MBR"); 106 break; 107 case MAP_TYPE_PRI_GPT_HDR: 108 printf("Pri GPT header"); 109 break; 110 case MAP_TYPE_SEC_GPT_HDR: 111 printf("Sec GPT header"); 112 break; 113 case MAP_TYPE_PRI_GPT_TBL: 114 printf("Pri GPT table"); 115 break; 116 case MAP_TYPE_SEC_GPT_TBL: 117 printf("Sec GPT table"); 118 break; 119 case MAP_TYPE_MBR_PART: 120 p = m->map_data; 121 if (p->map_start != 0) 122 printf("Extended "); 123 printf("MBR part "); 124 mbr = p->map_data; 125 for (i = 0; i < 4; i++) { 126 start = le16toh(mbr->mbr_part[i].part_start_hi); 127 start = (start << 16) + 128 le16toh(mbr->mbr_part[i].part_start_lo); 129 if (m->map_start == p->map_start + start) 130 break; 131 } 132 printf("%d", mbr->mbr_part[i].part_typ); 133 break; 134 case MAP_TYPE_GPT_PART: 135 printf("GPT part "); 136 ent = m->map_data; 137 if (show_label) { 138 utf16_to_utf8(ent->ent_name, utfbuf, 139 sizeof(utfbuf)); 140 printf("- \"%s\"", (char *)utfbuf); 141 } else if (show_guid) { 142 char buf[128]; 143 gpt_uuid_snprintf( 144 buf, sizeof(buf), "%d", ent->ent_guid); 145 printf("- %s", buf); 146 } else { 147 char buf[128]; 148 if (show_uuid || gpt_uuid_snprintf(buf, 149 sizeof(buf), "%ls", ent->ent_type) == -1) 150 gpt_uuid_snprintf(buf, sizeof(buf), 151 "%d", ent->ent_type); 152 printf("- %s", buf); 153 } 154 break; 155 case MAP_TYPE_PMBR: 156 printf("PMBR"); 157 break; 158 default: 159 printf("Unknown %#x", m->map_type); 160 break; 161 } 162 putchar('\n'); 163 m = m->map_next; 164 } 165 return 0; 166} 167 168static int 169show_one(gpt_t gpt) 170{ 171 map_t m; 172 struct gpt_ent *ent; 173 char s1[128], s2[128]; 174 uint8_t utfbuf[__arraycount(ent->ent_name) * 3 + 1]; 175#ifdef HN_AUTOSCALE 176 char human_num[5]; 177#endif 178 179 for (m = map_first(gpt); m != NULL; m = m->map_next) 180 if (entry == m->map_index) 181 break; 182 if (m == NULL) { 183 gpt_warnx(gpt, "Could not find index %d", entry); 184 return -1; 185 } 186 ent = m->map_data; 187 188 printf("Details for index %d:\n", entry); 189#ifdef HN_AUTOSCALE 190 if (humanize_number(human_num, 5, (int64_t)(m->map_start * gpt->secsz), 191 "", HN_AUTOSCALE, HN_NOSPACE|HN_B) < 0) 192 human_num[0] = '\0'; 193 if (human_num[0] != '\0') 194 printf("Start: %llu (%s)\n", (long long)m->map_start, 195 human_num); 196 else 197#endif 198 printf("Start: %llu\n", (long long)m->map_start); 199#ifdef HN_AUTOSCALE 200 if (humanize_number(human_num, 5, (int64_t)(m->map_size * gpt->secsz), 201 "", HN_AUTOSCALE, HN_NOSPACE|HN_B) < 0) 202 human_num[0] = '\0'; 203 if (human_num[0] != '\0') 204 printf("Size: %llu (%s)\n", (long long)m->map_size, human_num); 205 else 206#endif 207 printf("Size: %llu\n", (long long)m->map_size); 208 209 gpt_uuid_snprintf(s1, sizeof(s1), "%s", ent->ent_type); 210 gpt_uuid_snprintf(s2, sizeof(s2), "%d", ent->ent_type); 211 if (strcmp(s1, s2) == 0) 212 strlcpy(s1, "unknown", sizeof(s1)); 213 printf("Type: %s (%s)\n", s1, s2); 214 215 gpt_uuid_snprintf(s2, sizeof(s1), "%d", ent->ent_guid); 216 printf("GUID: %s\n", s2); 217 218 utf16_to_utf8(ent->ent_name, utfbuf, sizeof(utfbuf)); 219 printf("Label: %s\n", (char *)utfbuf); 220 221 printf("Attributes:\n"); 222 if (ent->ent_attr == 0) 223 printf(" None\n"); 224 else { 225 if (ent->ent_attr & GPT_ENT_ATTR_REQUIRED_PARTITION) 226 printf(" required for platform to function\n"); 227 if (ent->ent_attr & GPT_ENT_ATTR_NO_BLOCK_IO_PROTOCOL) 228 printf(" UEFI won't recognize file system\n"); 229 if (ent->ent_attr & GPT_ENT_ATTR_LEGACY_BIOS_BOOTABLE) 230 printf(" legacy BIOS boot partition\n"); 231 if (ent->ent_attr & GPT_ENT_ATTR_BOOTME) 232 printf(" indicates a bootable partition\n"); 233 if (ent->ent_attr & GPT_ENT_ATTR_BOOTONCE) 234 printf(" attempt to boot this partition only once\n"); 235 if (ent->ent_attr & GPT_ENT_ATTR_BOOTFAILED) 236 printf(" partition that was marked bootonce but failed to boot\n"); 237 } 238 return 0; 239} 240 241static int 242cmd_show(gpt_t gpt, int argc, char *argv[]) 243{ 244 int ch; 245 246 while ((ch = getopt(argc, argv, "gi:lu")) != -1) { 247 switch(ch) { 248 case 'g': 249 show_guid = 1; 250 break; 251 case 'i': 252 if (gpt_entry_get(&entry) == -1) 253 return usage(); 254 break; 255 case 'l': 256 show_label = 1; 257 break; 258 case 'u': 259 show_uuid = 1; 260 break; 261 default: 262 return usage(); 263 } 264 } 265 266 if (argc != optind) 267 return usage(); 268 269 return entry > 0 ? show_one(gpt) : show(gpt); 270} 271