show.c revision 1.29
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 1.29 2015/12/03 02:02:43 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 cmd_show(gpt_t, int, char *[]); 53 54static const char *showhelp[] = { 55 "[-glu] [-i index]", 56}; 57 58#define SHOW_UUID 1 59#define SHOW_GUID 2 60#define SHOW_LABEL 4 61 62struct gpt_cmd c_show = { 63 "show", 64 cmd_show, 65 showhelp, __arraycount(showhelp), 66 GPT_READONLY, 67}; 68 69#define usage() gpt_usage(NULL, &c_show) 70 71static int 72show(gpt_t gpt, int show) 73{ 74 off_t start; 75 map_t m, p; 76 struct mbr *mbr; 77 struct gpt_ent *ent; 78 unsigned int i; 79 char buf[128], *b = buf; 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 & SHOW_LABEL) { 138 utf16_to_utf8(ent->ent_name, utfbuf, 139 sizeof(utfbuf)); 140 b = (char *)buf; 141 } else if (show & SHOW_GUID) { 142 gpt_uuid_snprintf( buf, sizeof(buf), "%d", 143 ent->ent_guid); 144 } else if (show & SHOW_UUID) { 145 gpt_uuid_snprintf(buf, sizeof(buf), 146 "%d", ent->ent_type); 147 } else { 148 gpt_uuid_snprintf(buf, sizeof(buf), "%ls", 149 ent->ent_type); 150 } 151 printf("- %s", b); 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, unsigned int entry) 168{ 169 map_t m; 170 struct gpt_ent *ent; 171 char s1[128], s2[128]; 172 uint8_t utfbuf[__arraycount(ent->ent_name) * 3 + 1]; 173 174 for (m = map_first(gpt); m != NULL; m = m->map_next) 175 if (entry == m->map_index) 176 break; 177 if (m == NULL) { 178 gpt_warnx(gpt, "Could not find index %d", entry); 179 return -1; 180 } 181 ent = m->map_data; 182 183 printf("Details for index %d:\n", entry); 184 gpt_show_num("Start", (uintmax_t)(m->map_start * gpt->secsz)); 185 gpt_show_num("Size", (uintmax_t)(m->map_size * gpt->secsz)); 186 187 gpt_uuid_snprintf(s1, sizeof(s1), "%s", ent->ent_type); 188 gpt_uuid_snprintf(s2, sizeof(s2), "%d", ent->ent_type); 189 if (strcmp(s1, s2) == 0) 190 strlcpy(s1, "unknown", sizeof(s1)); 191 printf("Type: %s (%s)\n", s1, s2); 192 193 gpt_uuid_snprintf(s2, sizeof(s1), "%d", ent->ent_guid); 194 printf("GUID: %s\n", s2); 195 196 utf16_to_utf8(ent->ent_name, utfbuf, sizeof(utfbuf)); 197 printf("Label: %s\n", (char *)utfbuf); 198 199 printf("Attributes:\n"); 200 if (ent->ent_attr == 0) { 201 printf(" None\n"); 202 return 0; 203 } 204 if (ent->ent_attr & GPT_ENT_ATTR_REQUIRED_PARTITION) 205 printf(" required for platform to function\n"); 206 if (ent->ent_attr & GPT_ENT_ATTR_NO_BLOCK_IO_PROTOCOL) 207 printf(" UEFI won't recognize file system\n"); 208 if (ent->ent_attr & GPT_ENT_ATTR_LEGACY_BIOS_BOOTABLE) 209 printf(" legacy BIOS boot partition\n"); 210 if (ent->ent_attr & GPT_ENT_ATTR_BOOTME) 211 printf(" indicates a bootable partition\n"); 212 if (ent->ent_attr & GPT_ENT_ATTR_BOOTONCE) 213 printf(" attempt to boot this partition only once\n"); 214 if (ent->ent_attr & GPT_ENT_ATTR_BOOTFAILED) 215 printf(" partition was marked bootonce but failed to boot\n"); 216 return 0; 217} 218 219static int 220cmd_show(gpt_t gpt, int argc, char *argv[]) 221{ 222 int ch; 223 int xshow = 0; 224 unsigned int entry = 0; 225 226 while ((ch = getopt(argc, argv, "gi:lu")) != -1) { 227 switch(ch) { 228 case 'g': 229 xshow |= SHOW_GUID; 230 break; 231 case 'i': 232 if (gpt_uint_get(&entry) == -1) 233 return usage(); 234 break; 235 case 'l': 236 xshow |= SHOW_LABEL; 237 break; 238 case 'u': 239 xshow |= SHOW_UUID; 240 break; 241 default: 242 return usage(); 243 } 244 } 245 246 if (argc != optind) 247 return usage(); 248 249 return entry > 0 ? show_one(gpt, entry) : show(gpt, xshow); 250} 251