diff options
author | Kay Sievers <kay.sievers@suse.de> | 2006-03-27 18:05:17 +0200 |
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committer | Kay Sievers <kay.sievers@suse.de> | 2006-03-27 18:05:17 +0200 |
commit | 83cc6ab4760817509f1ed1ee429669e563f82caf (patch) | |
tree | 1d9ef7edcae7678f356c19e0b85c09f094576454 /extras/volume_id/lib/isw_raid.c | |
parent | b5e694267142042228a6cac99ecad6c4b4ef8759 (diff) |
volume_id: rename subdirectory
Diffstat (limited to 'extras/volume_id/lib/isw_raid.c')
-rw-r--r-- | extras/volume_id/lib/isw_raid.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/extras/volume_id/lib/isw_raid.c b/extras/volume_id/lib/isw_raid.c new file mode 100644 index 0000000000..6465a31bf5 --- /dev/null +++ b/extras/volume_id/lib/isw_raid.c @@ -0,0 +1,66 @@ +/* + * volume_id - reads filesystem label and uuid + * + * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org> + * + * 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 version 2 of the License. + */ + +#ifndef _GNU_SOURCE +#define _GNU_SOURCE 1 +#endif + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <string.h> +#include <errno.h> +#include <ctype.h> + +#include "libvolume_id.h" +#include "util.h" + +struct isw_meta { + uint8_t sig[32]; + uint32_t check_sum; + uint32_t mpb_size; + uint32_t family_num; + uint32_t generation_num; +} PACKED; + +#define ISW_SIGNATURE "Intel Raid ISM Cfg Sig. " + + +int volume_id_probe_intel_software_raid(struct volume_id *id, uint64_t off, uint64_t size) +{ + const uint8_t *buf; + uint64_t meta_off; + struct isw_meta *isw; + + dbg("probing at offset 0x%llx, size 0x%llx", + (unsigned long long) off, (unsigned long long) size); + + if (size < 0x10000) + return -1; + + meta_off = ((size / 0x200)-2) * 0x200; + buf = volume_id_get_buffer(id, off + meta_off, 0x200); + if (buf == NULL) + return -1; + + isw = (struct isw_meta *) buf; + if (memcmp(isw->sig, ISW_SIGNATURE, sizeof(ISW_SIGNATURE)-1) != 0) + return -1; + + volume_id_set_usage(id, VOLUME_ID_RAID); + memcpy(id->type_version, &isw->sig[sizeof(ISW_SIGNATURE)-1], 6); + id->type = "isw_raid_member"; + + return 0; +} |