1/* 2 * volume_id - reads filesystem label and uuid 3 * 4 * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org> 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 */ 20//config:### config FEATURE_VOLUMEID_HPFS 21//config:### bool "hpfs filesystem" 22//config:### default y 23//config:### depends on VOLUMEID 24 25//kbuild:### lib-$(CONFIG_FEATURE_VOLUMEID_HPFS) += hpfs.o 26 27#include "volume_id_internal.h" 28 29struct hpfs_super { 30 uint8_t magic[4]; 31 uint8_t version; 32} PACKED; 33 34#define HPFS_SUPERBLOCK_OFFSET 0x2000 35 36int FAST_FUNC volume_id_probe_hpfs(struct volume_id *id, uint64_t off) 37{ 38 struct hpfs_super *hs; 39 40 dbg("probing at offset 0x%llx", (unsigned long long) off); 41 42 hs = volume_id_get_buffer(id, off + HPFS_SUPERBLOCK_OFFSET, 0x200); 43 if (hs == NULL) 44 return -1; 45 46 if (memcmp(hs->magic, "\x49\xe8\x95\xf9", 4) == 0) { 47// sprintf(id->type_version, "%u", hs->version); 48// volume_id_set_usage(id, VOLUME_ID_FILESYSTEM); 49// id->type = "hpfs"; 50 return 0; 51 } 52 53 return -1; 54} 55