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Diffstat (limited to '')
-rw-r--r-- | libblkid/src/superblocks/bluestore.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/libblkid/src/superblocks/bluestore.c b/libblkid/src/superblocks/bluestore.c new file mode 100644 index 0000000..2ff1f35 --- /dev/null +++ b/libblkid/src/superblocks/bluestore.c @@ -0,0 +1,53 @@ +/* + * Copyright (C) 2018 by Kenneth Van Alstyne <kvanals@kvanals.org> + * + * This file may be redistributed under the terms of the + * GNU Lesser General Public License. + * + * + * Ceph BlueStore is one of the supported storage + * methods for Object Storage Devices (OSDs). + * This is used to detect the backing block devices + * used for these types of OSDs in a Ceph Cluster. + * + */ +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <string.h> +#include <errno.h> +#include <ctype.h> +#include <inttypes.h> +#include <stddef.h> + +#include "bitops.h" +#include "superblocks.h" + +#define BLUESTORE_MAGIC_L 22 + +struct bluestore_phdr { + uint8_t magic[BLUESTORE_MAGIC_L]; +} __attribute__((packed)); + +static int probe_bluestore(blkid_probe pr, const struct blkid_idmag *mag) +{ + struct bluestore_phdr *header; + + header = blkid_probe_get_sb(pr, mag, struct bluestore_phdr); + if (header == NULL) + return errno ? -errno : 1; + + return 0; +} + +const struct blkid_idinfo bluestore_idinfo = +{ + .name = "ceph_bluestore", + .usage = BLKID_USAGE_OTHER, + .probefunc = probe_bluestore, + .magics = + { + { .magic = "bluestore block device", .len = 22 }, + { NULL } + } +}; |