diff options
Diffstat (limited to 'extras/volume_id/lib/via_raid.c')
-rw-r--r-- | extras/volume_id/lib/via_raid.c | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/extras/volume_id/lib/via_raid.c b/extras/volume_id/lib/via_raid.c deleted file mode 100644 index 2d022a0060..0000000000 --- a/extras/volume_id/lib/via_raid.c +++ /dev/null @@ -1,97 +0,0 @@ -/* - * volume_id - reads filesystem label and uuid - * - * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org> - * - * Based on information taken from dmraid: - * Copyright (C) 2004-2006 Heinz Mauelshagen, Red Hat GmbH - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 2 of the License, or - * (at your option) any later version. - * - * This program 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 General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#ifndef _GNU_SOURCE -#define _GNU_SOURCE 1 -#endif - -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <string.h> -#include <errno.h> -#include <ctype.h> - -#include "libvolume_id.h" -#include "libvolume_id-private.h" - -struct via_meta { - uint16_t signature; - uint8_t version_number; - struct via_array { - uint16_t disk_bit_mask; - uint8_t disk_array_ex; - uint32_t capacity_low; - uint32_t capacity_high; - uint32_t serial_checksum; - } PACKED array; - uint32_t serial_checksum[8]; - uint8_t checksum; -} PACKED; - -#define VIA_SIGNATURE 0xAA55 - -/* 8 bit checksum on first 50 bytes of metadata. */ -static uint8_t meta_checksum(struct via_meta *via) -{ - uint8_t i = 50, sum = 0; - - while (i--) - sum += ((uint8_t*) via)[i]; - - return sum == via->checksum; -} - - -int volume_id_probe_via_raid(struct volume_id *id, uint64_t off, uint64_t size) -{ - const uint8_t *buf; - uint64_t meta_off; - struct via_meta *via; - - dbg("probing at offset 0x%" PRIx64 ", size 0x%" PRIx64 "\n", off, size); - - if (size < 0x10000) - return -1; - - meta_off = ((size / 0x200)-1) * 0x200; - - buf = volume_id_get_buffer(id, off + meta_off, 0x200); - if (buf == NULL) - return -1; - - via = (struct via_meta *) buf; - if (le16_to_cpu(via->signature) != VIA_SIGNATURE) - return -1; - - if (via->version_number > 2) - return -1; - - if (!meta_checksum(via)) - return -1; - - volume_id_set_usage(id, VOLUME_ID_RAID); - snprintf(id->type_version, sizeof(id->type_version)-1, "%u", via->version_number); - id->type = "via_raid_member"; - - return 0; -} |