show.c revision 1.4
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#include <sys/cdefs.h> 28#ifdef __FBSDID 29__FBSDID("$FreeBSD: src/sbin/gpt/show.c,v 1.14 2006/06/22 22:22:32 marcel Exp $"); 30#endif 31#ifdef __RCSID 32__RCSID("$NetBSD: show.c,v 1.4 2007/12/28 19:53:10 riz Exp $"); 33#endif 34 35#include <sys/types.h> 36 37#include <err.h> 38#include <stddef.h> 39#include <stdio.h> 40#include <stdlib.h> 41#include <string.h> 42#include <unistd.h> 43 44#include "map.h" 45#include "gpt.h" 46 47static int show_label = 0; 48static int show_uuid = 0; 49 50const char showmsg[] = "show [-lu] device ..."; 51 52static void 53usage_show(void) 54{ 55 56 fprintf(stderr, 57 "usage: %s %s\n", getprogname(), showmsg); 58 exit(1); 59} 60 61static const char * 62friendly(uuid_t *t) 63{ 64 static uuid_t efi_slice = GPT_ENT_TYPE_EFI; 65 static uuid_t mslinux = GPT_ENT_TYPE_MS_BASIC_DATA; 66 static uuid_t freebsd = GPT_ENT_TYPE_FREEBSD; 67 static uuid_t hfs = GPT_ENT_TYPE_APPLE_HFS; 68 static uuid_t linuxswap = GPT_ENT_TYPE_LINUX_SWAP; 69 static uuid_t msr = GPT_ENT_TYPE_MS_RESERVED; 70 static uuid_t swap = GPT_ENT_TYPE_FREEBSD_SWAP; 71 static uuid_t ufs = GPT_ENT_TYPE_FREEBSD_UFS; 72 static uuid_t vinum = GPT_ENT_TYPE_FREEBSD_VINUM; 73 static uuid_t nb_swap = GPT_ENT_TYPE_NETBSD_SWAP; 74 static uuid_t nb_ufs = GPT_ENT_TYPE_NETBSD_FFS; 75 static uuid_t nb_lfs = GPT_ENT_TYPE_NETBSD_LFS; 76 static uuid_t nb_raid = GPT_ENT_TYPE_NETBSD_RAIDFRAME; 77 static uuid_t nb_ccd = GPT_ENT_TYPE_NETBSD_CCD; 78 static uuid_t nb_cgd = GPT_ENT_TYPE_NETBSD_CGD; 79 static char buf[80]; 80 char *s; 81 82 if (show_uuid) 83 goto unfriendly; 84 85 if (uuid_equal(t, &efi_slice, NULL)) 86 return ("EFI System"); 87 if (uuid_equal(t, &nb_swap, NULL)) 88 return ("NetBSD swap"); 89 if (uuid_equal(t, &nb_ufs, NULL)) 90 return ("NetBSD UFS/UFS2"); 91 if (uuid_equal(t, &nb_lfs, NULL)) 92 return ("NetBSD LFS"); 93 if (uuid_equal(t, &nb_raid, NULL)) 94 return ("NetBSD RAIDFrame component"); 95 if (uuid_equal(t, &nb_ccd, NULL)) 96 return ("NetBSD ccd component"); 97 if (uuid_equal(t, &nb_cgd, NULL)) 98 return ("NetBSD Cryptographic Disk"); 99 if (uuid_equal(t, &swap, NULL)) 100 return ("FreeBSD swap"); 101 if (uuid_equal(t, &ufs, NULL)) 102 return ("FreeBSD UFS/UFS2"); 103 if (uuid_equal(t, &vinum, NULL)) 104 return ("FreeBSD vinum"); 105 106 if (uuid_equal(t, &freebsd, NULL)) 107 return ("FreeBSD legacy"); 108 if (uuid_equal(t, &mslinux, NULL)) 109 return ("Linux/Windows"); 110 if (uuid_equal(t, &linuxswap, NULL)) 111 return ("Linux swap"); 112 if (uuid_equal(t, &msr, NULL)) 113 return ("Windows reserved"); 114 if (uuid_equal(t, &hfs, NULL)) 115 return ("Apple HFS"); 116 117unfriendly: 118 uuid_to_string(t, &s, NULL); 119 strlcpy(buf, s, sizeof buf); 120 free(s); 121 return (buf); 122} 123 124static void 125show(int fd __unused) 126{ 127 uuid_t type; 128 off_t start; 129 map_t *m, *p; 130 struct mbr *mbr; 131 struct gpt_ent *ent; 132 unsigned int i; 133 134 printf(" %*s", lbawidth, "start"); 135 printf(" %*s", lbawidth, "size"); 136 printf(" index contents\n"); 137 138 m = map_first(); 139 while (m != NULL) { 140 printf(" %*llu", lbawidth, (long long)m->map_start); 141 printf(" %*llu", lbawidth, (long long)m->map_size); 142 putchar(' '); 143 putchar(' '); 144 if (m->map_index > 0) 145 printf("%5d", m->map_index); 146 else 147 printf(" "); 148 putchar(' '); 149 putchar(' '); 150 switch (m->map_type) { 151 case MAP_TYPE_MBR: 152 if (m->map_start != 0) 153 printf("Extended "); 154 printf("MBR"); 155 break; 156 case MAP_TYPE_PRI_GPT_HDR: 157 printf("Pri GPT header"); 158 break; 159 case MAP_TYPE_SEC_GPT_HDR: 160 printf("Sec GPT header"); 161 break; 162 case MAP_TYPE_PRI_GPT_TBL: 163 printf("Pri GPT table"); 164 break; 165 case MAP_TYPE_SEC_GPT_TBL: 166 printf("Sec GPT table"); 167 break; 168 case MAP_TYPE_MBR_PART: 169 p = m->map_data; 170 if (p->map_start != 0) 171 printf("Extended "); 172 printf("MBR part "); 173 mbr = p->map_data; 174 for (i = 0; i < 4; i++) { 175 start = le16toh(mbr->mbr_part[i].part_start_hi); 176 start = (start << 16) + 177 le16toh(mbr->mbr_part[i].part_start_lo); 178 if (m->map_start == p->map_start + start) 179 break; 180 } 181 printf("%d", mbr->mbr_part[i].part_typ); 182 break; 183 case MAP_TYPE_GPT_PART: 184 printf("GPT part "); 185 ent = m->map_data; 186 if (show_label) { 187 printf("- \"%s\"", 188 utf16_to_utf8(ent->ent_name)); 189 } else { 190 le_uuid_dec(&ent->ent_type, &type); 191 printf("- %s", friendly(&type)); 192 } 193 break; 194 case MAP_TYPE_PMBR: 195 printf("PMBR"); 196 break; 197 } 198 putchar('\n'); 199 m = m->map_next; 200 } 201} 202 203int 204cmd_show(int argc, char *argv[]) 205{ 206 int ch, fd; 207 208 while ((ch = getopt(argc, argv, "lu")) != -1) { 209 switch(ch) { 210 case 'l': 211 show_label = 1; 212 break; 213 case 'u': 214 show_uuid = 1; 215 break; 216 default: 217 usage_show(); 218 } 219 } 220 221 if (argc == optind) 222 usage_show(); 223 224 while (optind < argc) { 225 fd = gpt_open(argv[optind++]); 226 if (fd == -1) { 227 warn("unable to open device '%s'", device_name); 228 continue; 229 } 230 231 show(fd); 232 233 gpt_close(fd); 234 } 235 236 return (0); 237} 238