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authorLaMont Jones <lamont@debian.org>2009-07-21 15:45:04 -0600
committerLaMont Jones <lamont@debian.org>2009-07-21 15:45:04 -0600
commit7a22bb9abcb56d1010cefd204709e3888f95f735 (patch)
tree5c38b4485f79ee8f6a9d5f9537e973f1f663f027 /shlibs/blkid/src/probers/ddf_raid.c
parent4e13a18f57a5b427c559f3b466b9655db14d28f8 (diff)
parent741064af10ec81635d708e9fb8373f96341246eb (diff)
downloadutil-linux-old-7a22bb9abcb56d1010cefd204709e3888f95f735.tar.gz
Merge commit 'origin/master'
Conflicts: AUTHORS NEWS config/include-Makefile.am configure.ac mount/lomount.c po/POTFILES.in po/ca.po po/cs.po po/da.po po/de.po po/es.po po/et.po po/eu.po po/fi.po po/fr.po po/hu.po po/id.po po/it.po po/ja.po po/nl.po po/pl.po po/pt_BR.po po/ru.po po/sl.po po/sv.po po/tr.po po/uk.po po/util-linux-ng.pot po/vi.po po/zh_CN.po
Diffstat (limited to 'shlibs/blkid/src/probers/ddf_raid.c')
-rw-r--r--shlibs/blkid/src/probers/ddf_raid.c74
1 files changed, 74 insertions, 0 deletions
diff --git a/shlibs/blkid/src/probers/ddf_raid.c b/shlibs/blkid/src/probers/ddf_raid.c
new file mode 100644
index 00000000..41d6e123
--- /dev/null
+++ b/shlibs/blkid/src/probers/ddf_raid.c
@@ -0,0 +1,74 @@
+/*
+ * 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 "blkidP.h"
+
+/* http://www.snia.org/standards/home */
+#define DDF_GUID_LENGTH 24
+#define DDF_REV_LENGTH 8
+
+struct ddf_header {
+ uint8_t signature[4];
+ uint32_t crc;
+ uint8_t guid[DDF_GUID_LENGTH];
+ uint8_t ddf_rev[DDF_REV_LENGTH];
+} __attribute__((packed));
+
+static int probe_ddf(blkid_probe pr, const struct blkid_idmag *mag)
+{
+ int hdrs[] = { 1, 257 };
+ int i;
+ struct ddf_header *ddf = NULL;
+ char version[DDF_REV_LENGTH + 1];
+
+ if (pr->size < 0x30000)
+ return -1;
+
+ for (i = 0; i < ARRAY_SIZE(hdrs); i++) {
+ uint64_t off = ((pr->size / 0x200) - hdrs[i]) * 0x200;
+
+ ddf = (struct ddf_header *) blkid_probe_get_buffer(pr,
+ off,
+ sizeof(struct ddf_header));
+ if (!ddf)
+ return -1;
+
+ if (memcmp(ddf->signature, "\x11\xde\x11\xde", 4) == 0 ||
+ memcmp(ddf->signature, "\xde\x11\xde\x11", 4) == 0)
+ break;
+ ddf = NULL;
+ }
+
+ if (!ddf)
+ return -1;
+
+ blkid_probe_strncpy_uuid(pr, ddf->guid, sizeof(ddf->guid));
+
+ memcpy(version, ddf->ddf_rev, sizeof(ddf->ddf_rev));
+ *(version + sizeof(ddf->ddf_rev)) = '\0';
+
+ if (blkid_probe_set_version(pr, version) != 0)
+ return -1;
+ return 0;
+}
+
+const struct blkid_idinfo ddfraid_idinfo = {
+ .name = "ddf_raid_member",
+ .usage = BLKID_USAGE_RAID,
+ .probefunc = probe_ddf,
+ .magics = BLKID_NONE_MAGIC
+};
+
+