diff options
Diffstat (limited to 'extras/volume_id')
| -rw-r--r-- | extras/volume_id/lib/Makefile | 1 | ||||
| -rw-r--r-- | extras/volume_id/lib/ddf_raid.c | 64 | ||||
| -rw-r--r-- | extras/volume_id/lib/exported_symbols | 1 | ||||
| -rw-r--r-- | extras/volume_id/lib/libvolume_id.h | 1 |
4 files changed, 67 insertions, 0 deletions
diff --git a/extras/volume_id/lib/Makefile b/extras/volume_id/lib/Makefile index 5618b96a51..b73172e37e 100644 --- a/extras/volume_id/lib/Makefile +++ b/extras/volume_id/lib/Makefile @@ -30,6 +30,7 @@ OBJS= \ promise_raid.o \ adaptec_raid.o \ jmicron_raid.o \ + ddf_raid.o \ iso9660.o \ jfs.o \ linux_raid.o \ diff --git a/extras/volume_id/lib/ddf_raid.c b/extras/volume_id/lib/ddf_raid.c new file mode 100644 index 0000000000..9ac5c91e5a --- /dev/null +++ b/extras/volume_id/lib/ddf_raid.c @@ -0,0 +1,64 @@ +/* + * volume_id - reads filesystem label and uuid + * + * Copyright (C) 2004 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 <byteswap.h> + +#include "libvolume_id.h" +#include "util.h" + +#define DDF_HEADER 0xDE11DE11 +#define DDF_GUID_LENGTH 24 +#define DDF_REV_LENGTH 8 + +static struct ddf_header { + uint32_t signature; + uint32_t crc; + uint8_t guid[DDF_GUID_LENGTH]; + uint8_t ddf_rev[DDF_REV_LENGTH]; +} PACKED *ddf; + +int volume_id_probe_ddf_raid(struct volume_id *id, uint64_t off, uint64_t size) +{ + uint64_t ddf_off = ((size / 0x200)-1) * 0x200; + const uint8_t *buf; + + info("probing at offset 0x%llx, size 0x%llx", + (unsigned long long) off, (unsigned long long) size); + if (size < 0x10000) + return -1; + + buf = volume_id_get_buffer(id, off + ddf_off, 0x200); + if (buf == NULL) + return -1; + ddf = (struct ddf_header *) buf; + + if (ddf->signature != cpu_to_be32(DDF_HEADER)) + return -1; + + volume_id_set_uuid(id, ddf->guid, DDF_GUID_LENGTH, UUID_STRING); + snprintf(id->type_version, DDF_REV_LENGTH, "%s", ddf->ddf_rev); + volume_id_set_usage(id, VOLUME_ID_RAID); + id->type = "ddf_raid_member"; + return 0; +} diff --git a/extras/volume_id/lib/exported_symbols b/extras/volume_id/lib/exported_symbols index c88d993e01..d11634a948 100644 --- a/extras/volume_id/lib/exported_symbols +++ b/extras/volume_id/lib/exported_symbols @@ -44,6 +44,7 @@ volume_id_probe_linux_raid; volume_id_probe_lvm1; volume_id_probe_lvm2; + volume_id_probe_ddf_raid; volume_id_probe_intel_software_raid; volume_id_probe_highpoint_37x_raid; volume_id_probe_highpoint_45x_raid; diff --git a/extras/volume_id/lib/libvolume_id.h b/extras/volume_id/lib/libvolume_id.h index 523543f7ee..adfc75cb99 100644 --- a/extras/volume_id/lib/libvolume_id.h +++ b/extras/volume_id/lib/libvolume_id.h @@ -103,6 +103,7 @@ extern int volume_id_probe_luks(struct volume_id *id, uint64_t off, uint64_t siz extern int volume_id_probe_linux_raid(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_lvm1(struct volume_id *id, uint64_t off, uint64_t size); extern int volume_id_probe_lvm2(struct volume_id *id, uint64_t off, uint64_t size); +extern int volume_id_probe_ddf_raid(struct volume_id *id, uint64_t off, uint64_t size); /* bios raid */ extern int volume_id_probe_intel_software_raid(struct volume_id *id, uint64_t off, uint64_t size); |