/*- * Copyright (c) 2002 Marcel Moolenaar * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include __FBSDID("$FreeBSD: src/sbin/gpt/add.c,v 1.15.2.1.6.1 2010/02/10 00:26:20 kensmith Exp $"); #include #include #include #include #include #include #include #include "map.h" #include "gpt.h" static uuid_t add_type; static off_t add_block, add_size; static unsigned int add_entry; static void usage_add(void) { fprintf(stderr, "usage: %s [-b lba] [-i index] [-s lba] [-t uuid] device ...\n", getprogname()); exit(1); } map_t * gpt_add_part(int fd, uuid_t *type, off_t start, off_t size, unsigned int *entry) { uuid_t uuid; map_t *gpt, *tpg; map_t *tbl, *lbt; map_t *map; struct gpt_hdr *hdr; struct gpt_ent *ent; unsigned int i; gpt = map_find(MAP_TYPE_PRI_GPT_HDR); ent = NULL; if (gpt == NULL) { warnx("%s: error: no primary GPT header; run create or recover", device_name); return (NULL); } tpg = map_find(MAP_TYPE_SEC_GPT_HDR); if (tpg == NULL) { warnx("%s: error: no secondary GPT header; run recover", device_name); return (NULL); } tbl = map_find(MAP_TYPE_PRI_GPT_TBL); lbt = map_find(MAP_TYPE_SEC_GPT_TBL); if (tbl == NULL || lbt == NULL) { warnx("%s: error: run recover -- trust me", device_name); return (NULL); } hdr = gpt->map_data; if (*entry > le32toh(hdr->hdr_entries)) { warnx("%s: error: index %u out of range (%u max)", device_name, *entry, le32toh(hdr->hdr_entries)); return (NULL); } if (*entry > 0) { i = *entry - 1; ent = (void*)((char*)tbl->map_data + i * le32toh(hdr->hdr_entsz)); if (!uuid_is_nil(&ent->ent_type, NULL)) { warnx("%s: error: entry at index %u is not free", device_name, *entry); return (NULL); } } else { /* Find empty slot in GPT table. */ for (i = 0; i < le32toh(hdr->hdr_entries); i++) { ent = (void*)((char*)tbl->map_data + i * le32toh(hdr->hdr_entsz)); if (uuid_is_nil(&ent->ent_type, NULL)) break; } if (i == le32toh(hdr->hdr_entries)) { warnx("%s: error: no available table entries", device_name); return (NULL); } } map = map_alloc(start, size); if (map == NULL) { warnx("%s: error: no space available on device", device_name); return (NULL); } le_uuid_dec(&ent->ent_uuid, &uuid); if (uuid_is_nil(&uuid, NULL)) { uuid_create(&uuid, NULL); } le_uuid_enc(&ent->ent_type, type); le_uuid_enc(&ent->ent_uuid, &uuid); ent->ent_lba_start = htole64(map->map_start); ent->ent_lba_end = htole64(map->map_start + map->map_size - 1LL); hdr->hdr_crc_table = htole32(crc32(tbl->map_data, le32toh(hdr->hdr_entries) * le32toh(hdr->hdr_entsz))); hdr->hdr_crc_self = 0; hdr->hdr_crc_self = htole32(crc32(hdr, le32toh(hdr->hdr_size))); gpt_write(fd, gpt); gpt_write(fd, tbl); hdr = tpg->map_data; ent = (void*)((char*)lbt->map_data + i * le32toh(hdr->hdr_entsz)); le_uuid_enc(&ent->ent_type, type); le_uuid_enc(&ent->ent_uuid, &uuid); ent->ent_lba_start = htole64(map->map_start); ent->ent_lba_end = htole64(map->map_start + map->map_size - 1LL); hdr->hdr_crc_table = htole32(crc32(lbt->map_data, le32toh(hdr->hdr_entries) * le32toh(hdr->hdr_entsz))); hdr->hdr_crc_self = 0; hdr->hdr_crc_self = htole32(crc32(hdr, le32toh(hdr->hdr_size))); gpt_write(fd, lbt); gpt_write(fd, tpg); *entry = i + 1; return (map); } static void add(int fd) { if (!gpt_add_part(fd, &add_type, add_block, add_size, &add_entry)) return; #ifdef __APPLE__ printf("%ss%u added\n", device_name, add_entry); #else printf("%sp%u added\n", device_name, add_entry); #endif } int cmd_add(int argc, char *argv[]) { char *p; int ch, fd; /* Get the migrate options */ while ((ch = getopt(argc, argv, "b:i:s:t:")) != -1) { switch(ch) { case 'b': if (add_block > 0) usage_add(); add_block = strtoll(optarg, &p, 10); if (*p != 0 || add_block < 1) usage_add(); break; case 'i': if (add_entry > 0) usage_add(); add_entry = strtol(optarg, &p, 10); if (*p != 0 || add_entry < 1) usage_add(); break; case 's': if (add_size > 0) usage_add(); add_size = strtoll(optarg, &p, 10); if (*p != 0 || add_size < 1) usage_add(); break; case 't': if (!uuid_is_nil(&add_type, NULL)) usage_add(); if (parse_uuid(optarg, &add_type) != 0) usage_add(); break; default: usage_add(); } } if (argc == optind) usage_add(); #ifdef __APPLE__ /* Create HFS partitions by default. */ if (uuid_is_null(add_type)) uuid_copy(add_type, GPT_ENT_TYPE_APPLE_HFS); #else /* Create UFS partitions by default. */ if (uuid_is_nil(&add_type, NULL)) { uuid_t ufs = GPT_ENT_TYPE_FREEBSD_UFS; add_type = ufs; } #endif while (optind < argc) { fd = gpt_open(argv[optind++]); if (fd == -1) { warn("unable to open device '%s'", device_name); return (1); } add(fd); gpt_close(fd); } return (0); }