/* * volume_id - reads filesystem label and uuid * * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org> * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "volume_id_internal.h" struct minix_super_block { uint16_t s_ninodes; uint16_t s_nzones; uint16_t s_imap_blocks; uint16_t s_zmap_blocks; uint16_t s_firstdatazone; uint16_t s_log_zone_size; uint32_t s_max_size; uint16_t s_magic; uint16_t s_state; uint32_t s_zones; } __attribute__((__packed__)); #define MINIX_SUPERBLOCK_OFFSET 0x400 int volume_id_probe_minix(struct volume_id *id, uint64_t off) { struct minix_super_block *ms; dbg("probing at offset 0x%llx", (unsigned long long) off); ms = volume_id_get_buffer(id, off + MINIX_SUPERBLOCK_OFFSET, 0x200); if (ms == NULL) return -1; if (ms->s_magic == cpu_to_le16(0x137f)) { // id->type_version[0] = '1'; goto found; } if (ms->s_magic == cpu_to_le16(0x1387)) { // id->type_version[0] = '1'; goto found; } if (ms->s_magic == cpu_to_le16(0x2468)) { // id->type_version[0] = '2'; goto found; } if (ms->s_magic == cpu_to_le16(0x2478)) { // id->type_version[0] = '2'; goto found; } return -1; found: // id->type_version[1] = '\0'; // volume_id_set_usage(id, VOLUME_ID_FILESYSTEM); // id->type = "minix"; return 0; }