add.c revision 1.18
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/add.c,v 1.14 2006/06/22 22:05:28 marcel Exp $"); 30 #endif 31 #ifdef __RCSID 32 __RCSID("$NetBSD: add.c,v 1.18 2013/11/22 03:50:05 jnemeth 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 #include <inttypes.h> 44 45 #include "map.h" 46 #include "gpt.h" 47 48 static uuid_t type; 49 static off_t alignment, block, size; 50 static unsigned int entry; 51 static uint8_t *name; 52 53 const char addmsg1[] = "add [-a alignment] [-b blocknr] [-i index] [-l label]"; 54 const char addmsg2[] = " [-s sectors] [-t type] device ..."; 55 56 __dead static void 57 usage_add(void) 58 { 59 60 fprintf(stderr, 61 "usage: %s %s\n" 62 " %*s %s\n", getprogname(), addmsg1, 63 (int)strlen(getprogname()), "", addmsg2); 64 exit(1); 65 } 66 67 static void 68 add(int fd) 69 { 70 uuid_t uuid; 71 map_t *gpt, *tpg; 72 map_t *tbl, *lbt; 73 map_t *map; 74 struct gpt_hdr *hdr; 75 struct gpt_ent *ent; 76 unsigned int i; 77 off_t alignsecs; 78 79 80 gpt = map_find(MAP_TYPE_PRI_GPT_HDR); 81 ent = NULL; 82 if (gpt == NULL) { 83 warnx("%s: error: no primary GPT header; run create or recover", 84 device_name); 85 return; 86 } 87 88 tpg = map_find(MAP_TYPE_SEC_GPT_HDR); 89 if (tpg == NULL) { 90 warnx("%s: error: no secondary GPT header; run recover", 91 device_name); 92 return; 93 } 94 95 tbl = map_find(MAP_TYPE_PRI_GPT_TBL); 96 lbt = map_find(MAP_TYPE_SEC_GPT_TBL); 97 if (tbl == NULL || lbt == NULL) { 98 warnx("%s: error: run recover -- trust me", device_name); 99 return; 100 } 101 102 hdr = gpt->map_data; 103 if (entry > le32toh(hdr->hdr_entries)) { 104 warnx("%s: error: index %u out of range (%u max)", device_name, 105 entry, le32toh(hdr->hdr_entries)); 106 return; 107 } 108 109 if (entry > 0) { 110 i = entry - 1; 111 ent = (void*)((char*)tbl->map_data + i * 112 le32toh(hdr->hdr_entsz)); 113 le_uuid_dec(ent->ent_type, &uuid); 114 if (!uuid_is_nil(&uuid, NULL)) { 115 warnx("%s: error: entry at index %u is not free", 116 device_name, entry); 117 return; 118 } 119 } else { 120 /* Find empty slot in GPT table. */ 121 for (i = 0; i < le32toh(hdr->hdr_entries); i++) { 122 ent = (void*)((char*)tbl->map_data + i * 123 le32toh(hdr->hdr_entsz)); 124 le_uuid_dec(ent->ent_type, &uuid); 125 if (uuid_is_nil(&uuid, NULL)) 126 break; 127 } 128 if (i == le32toh(hdr->hdr_entries)) { 129 warnx("%s: error: no available table entries", 130 device_name); 131 return; 132 } 133 } 134 135 if (alignment > 0) { 136 alignsecs = alignment / secsz; 137 map = map_alloc(block, size, alignsecs); 138 if (map == NULL) { 139 warnx("%s: error: not enough space available on device for an aligned partition", device_name); 140 map = map_alloc(block, size, 0); 141 if (map == NULL) { 142 warnx("%s: error: not enough available on device", device_name); 143 return; 144 } 145 } 146 } else { 147 map = map_alloc(block, size, 0); 148 if (map == NULL) { 149 warnx("%s: error: not enough space available on device", device_name); 150 return; 151 } 152 } 153 154 le_uuid_enc(ent->ent_type, &type); 155 ent->ent_lba_start = htole64(map->map_start); 156 ent->ent_lba_end = htole64(map->map_start + map->map_size - 1LL); 157 if (name != NULL) 158 utf8_to_utf16(name, ent->ent_name, 36); 159 160 hdr->hdr_crc_table = htole32(crc32(tbl->map_data, 161 le32toh(hdr->hdr_entries) * le32toh(hdr->hdr_entsz))); 162 hdr->hdr_crc_self = 0; 163 hdr->hdr_crc_self = htole32(crc32(hdr, le32toh(hdr->hdr_size))); 164 165 gpt_write(fd, gpt); 166 gpt_write(fd, tbl); 167 168 hdr = tpg->map_data; 169 ent = (void*)((char*)lbt->map_data + i * le32toh(hdr->hdr_entsz)); 170 171 le_uuid_enc(ent->ent_type, &type); 172 ent->ent_lba_start = htole64(map->map_start); 173 ent->ent_lba_end = htole64(map->map_start + map->map_size - 1LL); 174 if (name != NULL) 175 utf8_to_utf16(name, ent->ent_name, 36); 176 177 hdr->hdr_crc_table = htole32(crc32(lbt->map_data, 178 le32toh(hdr->hdr_entries) * le32toh(hdr->hdr_entsz))); 179 hdr->hdr_crc_self = 0; 180 hdr->hdr_crc_self = htole32(crc32(hdr, le32toh(hdr->hdr_size))); 181 182 gpt_write(fd, lbt); 183 gpt_write(fd, tpg); 184 185 #ifdef __FreeBSD__ 186 printf("%sp%u added\n", device_name, i + 1); 187 #endif 188 #ifdef __NetBSD__ 189 printf("Partition added, use:\n"); 190 printf("\tdkctl %s addwedge <wedgename> %" PRIu64 " %" PRIu64 191 " <type>\n", device_arg, map->map_start, map->map_size); 192 printf("to create a wedge for it\n"); 193 #endif 194 } 195 196 int 197 cmd_add(int argc, char *argv[]) 198 { 199 char *p; 200 int ch, fd; 201 int64_t human_num; 202 203 while ((ch = getopt(argc, argv, "a:b:i:l:s:t:")) != -1) { 204 switch(ch) { 205 case 'a': 206 if (alignment > 0) 207 usage_add(); 208 if (dehumanize_number(optarg, &human_num) < 0) 209 usage_add(); 210 alignment = human_num; 211 break; 212 case 'b': 213 if (block > 0) 214 usage_add(); 215 block = strtoll(optarg, &p, 10); 216 if (*p != 0 || block < 1) 217 usage_add(); 218 break; 219 case 'i': 220 if (entry > 0) 221 usage_add(); 222 entry = strtoul(optarg, &p, 10); 223 if (*p != 0 || entry < 1) 224 usage_add(); 225 break; 226 case 'l': 227 if (name != NULL) 228 usage_add(); 229 name = (uint8_t *)strdup(optarg); 230 break; 231 case 's': 232 if (size > 0) 233 usage_add(); 234 size = strtoll(optarg, &p, 10); 235 if (*p != 0 || size < 1) 236 usage_add(); 237 break; 238 case 't': 239 if (!uuid_is_nil(&type, NULL)) 240 usage_add(); 241 if (parse_uuid(optarg, &type) != 0) 242 usage_add(); 243 break; 244 default: 245 usage_add(); 246 } 247 } 248 249 if (argc == optind) 250 usage_add(); 251 252 /* Create NetBSD FFS partitions by default. */ 253 if (uuid_is_nil(&type, NULL)) { 254 static const uuid_t nb_ffs = GPT_ENT_TYPE_NETBSD_FFS; 255 type = nb_ffs; 256 } 257 258 while (optind < argc) { 259 fd = gpt_open(argv[optind++]); 260 if (fd == -1) { 261 warn("unable to open device '%s'", device_name); 262 continue; 263 } 264 265 if (alignment % secsz != 0) { 266 warnx("Alignment must be a multiple of sector size; "); 267 warnx("the sector size for %s is %d bytes.", 268 device_name, secsz); 269 continue; 270 } 271 272 add(fd); 273 274 gpt_close(fd); 275 } 276 277 return (0); 278 } 279
Indexes created Fri Sep 26 08:10:20 GMT 2025