show.c revision 1.25
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 1.25 2015/12/01 16:32:19 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 81 printf(" %*s", gpt->lbawidth, "start"); 82 printf(" %*s", gpt->lbawidth, "size"); 83 printf(" index contents\n"); 84 85 m = map_first(gpt); 86 while (m != NULL) { 87 printf(" %*llu", gpt->lbawidth, (long long)m->map_start); 88 printf(" %*llu", gpt->lbawidth, (long long)m->map_size); 89 putchar(' '); 90 putchar(' '); 91 if (m->map_index > 0) 92 printf("%5d", m->map_index); 93 else 94 printf(" "); 95 putchar(' '); 96 putchar(' '); 97 switch (m->map_type) { 98 case MAP_TYPE_UNUSED: 99 printf("Unused"); 100 break; 101 case MAP_TYPE_MBR: 102 if (m->map_start != 0) 103 printf("Extended "); 104 printf("MBR"); 105 break; 106 case MAP_TYPE_PRI_GPT_HDR: 107 printf("Pri GPT header"); 108 break; 109 case MAP_TYPE_SEC_GPT_HDR: 110 printf("Sec GPT header"); 111 break; 112 case MAP_TYPE_PRI_GPT_TBL: 113 printf("Pri GPT table"); 114 break; 115 case MAP_TYPE_SEC_GPT_TBL: 116 printf("Sec GPT table"); 117 break; 118 case MAP_TYPE_MBR_PART: 119 p = m->map_data; 120 if (p->map_start != 0) 121 printf("Extended "); 122 printf("MBR part "); 123 mbr = p->map_data; 124 for (i = 0; i < 4; i++) { 125 start = le16toh(mbr->mbr_part[i].part_start_hi); 126 start = (start << 16) + 127 le16toh(mbr->mbr_part[i].part_start_lo); 128 if (m->map_start == p->map_start + start) 129 break; 130 } 131 printf("%d", mbr->mbr_part[i].part_typ); 132 break; 133 case MAP_TYPE_GPT_PART: 134 printf("GPT part "); 135 ent = m->map_data; 136 if (show_label) { 137 printf("- \"%s\"", 138 utf16_to_utf8(ent->ent_name)); 139 } else if (show_guid) { 140 char buf[128]; 141 gpt_uuid_snprintf( 142 buf, sizeof(buf), "%d", ent->ent_guid); 143 printf("- %s", buf); 144 } else { 145 char buf[128]; 146 if (show_uuid || gpt_uuid_snprintf(buf, 147 sizeof(buf), "%ls", ent->ent_type) == -1) 148 gpt_uuid_snprintf(buf, sizeof(buf), 149 "%d", ent->ent_type); 150 printf("- %s", buf); 151 } 152 break; 153 case MAP_TYPE_PMBR: 154 printf("PMBR"); 155 break; 156 default: 157 printf("Unknown %#x", m->map_type); 158 break; 159 } 160 putchar('\n'); 161 m = m->map_next; 162 } 163 return 0; 164} 165 166static int 167show_one(gpt_t gpt) 168{ 169 map_t m; 170 struct gpt_ent *ent; 171 char s1[128], s2[128]; 172#ifdef HN_AUTOSCALE 173 char human_num[5]; 174#endif 175 176 for (m = map_first(gpt); m != NULL; m = m->map_next) 177 if (entry == m->map_index) 178 break; 179 if (m == NULL) { 180 gpt_warnx(gpt, "Could not find index %d", entry); 181 return -1; 182 } 183 ent = m->map_data; 184 185 printf("Details for index %d:\n", entry); 186#ifdef HN_AUTOSCALE 187 if (humanize_number(human_num, 5, (int64_t)(m->map_start * gpt->secsz), 188 "", HN_AUTOSCALE, HN_NOSPACE|HN_B) < 0) 189 human_num[0] = '\0'; 190 if (human_num[0] != '\0') 191 printf("Start: %llu (%s)\n", (long long)m->map_start, 192 human_num); 193 else 194#endif 195 printf("Start: %llu\n", (long long)m->map_start); 196#ifdef HN_AUTOSCALE 197 if (humanize_number(human_num, 5, (int64_t)(m->map_size * gpt->secsz), 198 "", HN_AUTOSCALE, HN_NOSPACE|HN_B) < 0) 199 human_num[0] = '\0'; 200 if (human_num[0] != '\0') 201 printf("Size: %llu (%s)\n", (long long)m->map_size, human_num); 202 else 203#endif 204 printf("Size: %llu\n", (long long)m->map_size); 205 206 gpt_uuid_snprintf(s1, sizeof(s1), "%s", ent->ent_type); 207 gpt_uuid_snprintf(s2, sizeof(s2), "%d", ent->ent_type); 208 if (strcmp(s1, s2) == 0) 209 strlcpy(s1, "unknown", sizeof(s1)); 210 printf("Type: %s (%s)\n", s1, s2); 211 212 gpt_uuid_snprintf(s2, sizeof(s1), "%d", ent->ent_guid); 213 printf("GUID: %s\n", s2); 214 215 printf("Label: %s\n", utf16_to_utf8(ent->ent_name)); 216 217 printf("Attributes:\n"); 218 if (ent->ent_attr == 0) 219 printf(" None\n"); 220 else { 221 if (ent->ent_attr & GPT_ENT_ATTR_REQUIRED_PARTITION) 222 printf(" required for platform to function\n"); 223 if (ent->ent_attr & GPT_ENT_ATTR_NO_BLOCK_IO_PROTOCOL) 224 printf(" UEFI won't recognize file system\n"); 225 if (ent->ent_attr & GPT_ENT_ATTR_LEGACY_BIOS_BOOTABLE) 226 printf(" legacy BIOS boot partition\n"); 227 if (ent->ent_attr & GPT_ENT_ATTR_BOOTME) 228 printf(" indicates a bootable partition\n"); 229 if (ent->ent_attr & GPT_ENT_ATTR_BOOTONCE) 230 printf(" attempt to boot this partition only once\n"); 231 if (ent->ent_attr & GPT_ENT_ATTR_BOOTFAILED) 232 printf(" partition that was marked bootonce but failed to boot\n"); 233 } 234 return 0; 235} 236 237static int 238cmd_show(gpt_t gpt, int argc, char *argv[]) 239{ 240 char *p; 241 int ch; 242 243 while ((ch = getopt(argc, argv, "gi:lu")) != -1) { 244 switch(ch) { 245 case 'g': 246 show_guid = 1; 247 break; 248 case 'i': 249 if (entry > 0) 250 return usage(); 251 entry = strtoul(optarg, &p, 10); 252 if (*p != 0 || 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