/*- * 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. */ #if HAVE_NBTOOL_CONFIG_H #include "nbtool_config.h" #endif #include #ifdef __FBSDID __FBSDID("$FreeBSD: src/sbin/gpt/add.c,v 1.14 2006/06/22 22:05:28 marcel Exp $"); #endif #ifdef __RCSID __RCSID("$NetBSD: add.c,v 1.24.4.1 2015/06/02 19:49:38 snj Exp $"); #endif #include #include #include #include #include #include #include #include "map.h" #include "gpt.h" static gpt_uuid_t type; static off_t alignment, block, sectors, size; static unsigned int entry; static uint8_t *name; const char addmsg1[] = "add [-a alignment] [-b blocknr] [-i index] [-l label]"; const char addmsg2[] = " [-s size] [-t type] device ..."; __dead static void usage_add(void) { fprintf(stderr, "usage: %s %s\n" " %*s %s\n", getprogname(), addmsg1, (int)strlen(getprogname()), "", addmsg2); exit(1); } static void add(int fd) { map_t *gpt, *tpg; map_t *tbl, *lbt; map_t *map; struct gpt_hdr *hdr; struct gpt_ent *ent; unsigned int i; off_t alignsecs; 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; } tpg = map_find(MAP_TYPE_SEC_GPT_HDR); if (tpg == NULL) { warnx("%s: error: no secondary GPT header; run recover", device_name); return; } 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; } 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; } if (entry > 0) { i = entry - 1; ent = (void*)((char*)tbl->map_data + i * le32toh(hdr->hdr_entsz)); if (!gpt_uuid_is_nil(ent->ent_type)) { warnx("%s: error: entry at index %u is not free", device_name, entry); return; } } 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 (gpt_uuid_is_nil(ent->ent_type)) break; } if (i == le32toh(hdr->hdr_entries)) { warnx("%s: error: no available table entries", device_name); return; } } if (alignment > 0) { alignsecs = alignment / secsz; map = map_alloc(block, sectors, alignsecs); if (map == NULL) { warnx("%s: error: not enough space available on " "device for an aligned partition", device_name); return; } } else { map = map_alloc(block, sectors, 0); if (map == NULL) { warnx("%s: error: not enough space available on " "device", device_name); return; } } gpt_uuid_copy(ent->ent_type, type); ent->ent_lba_start = htole64(map->map_start); ent->ent_lba_end = htole64(map->map_start + map->map_size - 1LL); if (name != NULL) utf8_to_utf16(name, ent->ent_name, 36); 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)); gpt_uuid_copy(ent->ent_type, type); ent->ent_lba_start = htole64(map->map_start); ent->ent_lba_end = htole64(map->map_start + map->map_size - 1LL); if (name != NULL) utf8_to_utf16(name, ent->ent_name, 36); 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); printf("Partition %d added, use:\n", i + 1); printf("\tdkctl %s addwedge %" PRIu64 " %" PRIu64 " \n", device_arg, map->map_start, map->map_size); printf("to create a wedge for it\n"); } int cmd_add(int argc, char *argv[]) { char *p; int ch, fd; int64_t human_num; while ((ch = getopt(argc, argv, "a:b:i:l:s:t:")) != -1) { switch(ch) { case 'a': if (alignment > 0) usage_add(); if (dehumanize_number(optarg, &human_num) < 0) usage_add(); alignment = human_num; if (alignment < 1) usage_add(); break; case 'b': if (block > 0) usage_add(); if (dehumanize_number(optarg, &human_num) < 0) usage_add(); block = human_num; if (block < 1) usage_add(); break; case 'i': if (entry > 0) usage_add(); entry = strtoul(optarg, &p, 10); if (*p != 0 || entry < 1) usage_add(); break; case 'l': if (name != NULL) usage_add(); name = (uint8_t *)strdup(optarg); break; case 's': if (sectors > 0 || size > 0) usage_add(); sectors = strtoll(optarg, &p, 10); if (sectors < 1) usage_add(); if (*p == '\0') break; if (*p == 's' || *p == 'S') { if (*(p + 1) == '\0') break; else usage_add(); } if (*p == 'b' || *p == 'B') { if (*(p + 1) == '\0') { size = sectors; sectors = 0; break; } else usage_add(); } if (dehumanize_number(optarg, &human_num) < 0) usage_add(); size = human_num; sectors = 0; break; case 't': if (!gpt_uuid_is_nil(type)) usage_add(); if (gpt_uuid_parse(optarg, type) != 0) usage_add(); break; default: usage_add(); } } if (argc == optind) usage_add(); /* Create NetBSD FFS partitions by default. */ if (gpt_uuid_is_nil(type)) { gpt_uuid_create(GPT_TYPE_NETBSD_FFS, type, NULL, 0); } while (optind < argc) { fd = gpt_open(argv[optind++]); if (fd == -1) { warn("unable to open device '%s'", device_name); continue; } if (alignment % secsz != 0) { warnx("Alignment must be a multiple of sector size;"); warnx("the sector size for %s is %d bytes.", device_name, secsz); continue; } if (size % secsz != 0) { warnx("Size in bytes must be a multiple of sector " "size;"); warnx("the sector size for %s is %d bytes.", device_name, secsz); continue; } if (size > 0) sectors = size / secsz; add(fd); gpt_close(fd); } return (0); }