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/add.c,v 1.14 2006/06/22 22:05:28 marcel Exp $"); 34 #endif 35 #ifdef __RCSID 36 __RCSID("$NetBSD: add.c,v 1.44 2018/07/03 03:41:23 jnemeth Exp $"); 37 #endif 38 39 #include <sys/types.h> 40 #include <sys/param.h> 41 #include <sys/stat.h> 42 43 #include <err.h> 44 #include <stddef.h> 45 #include <stdio.h> 46 #include <stdlib.h> 47 #include <string.h> 48 #include <unistd.h> 49 50 #include "map.h" 51 #include "gpt.h" 52 #include "gpt_private.h" 53 54 static int cmd_add(gpt_t, int, char *[]); 55 56 static const char *addhelp[] = { 57 "[-a alignment] [-b blocknr] [-i index] [-l label]", 58 "[-s size] [-t type]", 59 }; 60 61 struct gpt_cmd c_add = { 62 "add", 63 cmd_add, 64 addhelp, __arraycount(addhelp), 65 GPT_SYNC, 66 }; 67 68 #define usage() gpt_usage(NULL, &c_add) 69 70 static void 71 ent_set(struct gpt_ent *ent, const map_t map, const gpt_uuid_t xtype, 72 const uint8_t *xname) 73 { 74 gpt_uuid_copy(ent->ent_type, xtype); 75 ent->ent_lba_start = htole64((uint64_t)map->map_start); 76 ent->ent_lba_end = htole64((uint64_t)(map->map_start + 77 map->map_size - 1LL)); 78 if (xname == NULL) 79 return; 80 utf8_to_utf16(xname, ent->ent_name, __arraycount(ent->ent_name)); 81 } 82 83 static int 84 add(gpt_t gpt, off_t alignment, off_t block, off_t sectors, off_t size, 85 u_int entry, uint8_t *name, gpt_uuid_t type) 86 { 87 map_t map; 88 struct gpt_hdr *hdr; 89 struct gpt_ent *ent; 90 unsigned int i; 91 off_t alignsecs; 92 char buf[128]; 93 94 if ((hdr = gpt_hdr(gpt)) == NULL) 95 return -1; 96 97 ent = NULL; 98 99 if (entry > le32toh(hdr->hdr_entries)) { 100 gpt_warnx(gpt, "index %u out of range (%u max)", 101 entry, le32toh(hdr->hdr_entries)); 102 return -1; 103 } 104 105 if (entry > 0) { 106 i = entry - 1; 107 ent = gpt_ent_primary(gpt, i); 108 if (!gpt_uuid_is_nil(ent->ent_type)) { 109 gpt_warnx(gpt, "Entry at index %u is not free", entry); 110 return -1; 111 } 112 } else { 113 /* Find empty slot in GPT table. */ 114 for (i = 0; i < le32toh(hdr->hdr_entries); i++) { 115 ent = gpt_ent_primary(gpt, i); 116 if (gpt_uuid_is_nil(ent->ent_type)) 117 break; 118 } 119 if (i == le32toh(hdr->hdr_entries)) { 120 gpt_warnx(gpt, "No available table entries"); 121 return -1; 122 } 123 } 124 125 if (alignment > 0) { 126 alignsecs = alignment / gpt->secsz; 127 map = map_alloc(gpt, block, sectors, alignsecs); 128 if (map == NULL) { 129 gpt_warnx(gpt, "Not enough space available on " 130 "device for an aligned partition"); 131 return -1; 132 } 133 } else { 134 map = map_alloc(gpt, block, sectors, 0); 135 if (map == NULL) { 136 gpt_warnx(gpt, "Not enough space available on device"); 137 return -1; 138 } 139 } 140 141 ent_set(ent, map, type, name); 142 if (gpt_write_primary(gpt) == -1) 143 return -1; 144 145 ent = gpt_ent_backup(gpt, i); 146 ent_set(ent, map, type, name); 147 if (gpt_write_backup(gpt) == -1) 148 return -1; 149 150 gpt_uuid_snprintf(buf, sizeof(buf), "%d", type); 151 gpt_msg(gpt, "Partition %d added: %s %" PRIu64 " %" PRIu64, i + 1, 152 buf, map->map_start, map->map_size); 153 return 0; 154 } 155 156 static int 157 cmd_add(gpt_t gpt, int argc, char *argv[]) 158 { 159 int ch; 160 off_t alignment = 0, block = 0, sectors = 0, size = 0; 161 unsigned int entry = 0; 162 uint8_t *name = NULL; 163 gpt_uuid_t type; 164 165 gpt_uuid_copy(type, gpt_uuid_nil); 166 167 while ((ch = getopt(argc, argv, GPT_AIS "b:l:t:")) != -1) { 168 switch(ch) { 169 case 'b': 170 if (gpt_human_get(gpt, &block) == -1) 171 goto usage; 172 break; 173 case 'l': 174 if (gpt_name_get(gpt, &name) == -1) 175 goto usage; 176 break; 177 case 't': 178 if (gpt_uuid_get(gpt, &type) == -1) 179 goto usage; 180 break; 181 default: 182 if (gpt_add_ais(gpt, &alignment, &entry, &size, ch) 183 == -1) 184 goto usage; 185 break; 186 } 187 } 188 189 if (argc != optind) 190 return usage(); 191 192 /* Create NetBSD FFS partitions by default. */ 193 if (gpt_uuid_is_nil(type)) 194 gpt_uuid_create(GPT_TYPE_NETBSD_FFS, type, NULL, 0); 195 196 if (optind != argc) 197 goto cleanup; 198 199 if ((sectors = gpt_check_ais(gpt, alignment, ~0U, size)) == -1) 200 goto cleanup; 201 202 return add(gpt, alignment, block, sectors, size, entry, name, type); 203 usage: 204 return usage(); 205 cleanup: 206 free(name); 207 return -1; 208 } 209