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-rw-r--r--libblkid/src/superblocks/isw_raid.c67
1 files changed, 67 insertions, 0 deletions
diff --git a/libblkid/src/superblocks/isw_raid.c b/libblkid/src/superblocks/isw_raid.c
new file mode 100644
index 0000000..81d53a1
--- /dev/null
+++ b/libblkid/src/superblocks/isw_raid.c
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2008 Karel Zak <kzak@redhat.com>
+ *
+ * Inspired by libvolume_id by
+ * Kay Sievers <kay.sievers@vrfy.org>
+ *
+ * This file may be redistributed under the terms of the
+ * GNU Lesser General Public License.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdint.h>
+
+#include "superblocks.h"
+
+struct isw_metadata {
+ uint8_t sig[32];
+ uint32_t check_sum;
+ uint32_t mpb_size;
+ uint32_t family_num;
+ uint32_t generation_num;
+};
+
+#define ISW_SIGNATURE "Intel Raid ISM Cfg Sig. "
+
+static int probe_iswraid(blkid_probe pr,
+ const struct blkid_idmag *mag __attribute__((__unused__)))
+{
+ uint64_t off;
+ unsigned int sector_size;
+ struct isw_metadata *isw;
+
+ if (pr->size < 0x10000)
+ return 1;
+ if (!S_ISREG(pr->mode) && !blkid_probe_is_wholedisk(pr))
+ return 1;
+
+ sector_size = blkid_probe_get_sectorsize(pr);
+ off = ((pr->size / sector_size) - 2) * sector_size;
+
+ isw = (struct isw_metadata *)blkid_probe_get_buffer(pr,
+ off, sizeof(struct isw_metadata));
+ if (!isw)
+ return errno ? -errno : 1;
+
+ if (memcmp(isw->sig, ISW_SIGNATURE, sizeof(ISW_SIGNATURE)-1) != 0)
+ return 1;
+
+ if (blkid_probe_sprintf_version(pr, "%6s",
+ &isw->sig[sizeof(ISW_SIGNATURE)-1]) != 0)
+ return 1;
+ if (blkid_probe_set_magic(pr, off, sizeof(isw->sig),
+ (unsigned char *) isw->sig))
+ return 1;
+ return 0;
+}
+
+const struct blkid_idinfo iswraid_idinfo = {
+ .name = "isw_raid_member",
+ .usage = BLKID_USAGE_RAID,
+ .probefunc = probe_iswraid,
+ .magics = BLKID_NONE_MAGIC
+};
+
+