1 files changed, 87 insertions, 0 deletions

diff --git a/util-linux/volume_id/unused_lvm.c b/util-linux/volume_id/unused_lvm.c
new file mode 100644
index 000000000..caee04ba5
--- /dev/null
+++ b/util-linux/volume_id/unused_lvm.c
@@ -0,0 +1,87 @@
+/*
+ * volume_id - reads filesystem label and uuid
+ *
+ * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
+ *
+ *      This library is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU Lesser General Public
+ *      License as published by the Free Software Foundation; either
+ *      version 2.1 of the License, or (at your option) any later version.
+ *
+ *      This library is distributed in the hope that it will be useful,
+ *      but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ *      Lesser General Public License for more details.
+ *
+ *      You should have received a copy of the GNU Lesser General Public
+ *      License along with this library; if not, write to the Free Software
+ *      Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "volume_id_internal.h"
+
+struct lvm1_super_block {
+        uint8_t id[2];
+} __attribute__((packed));
+
+struct lvm2_super_block {
+        uint8_t         id[8];
+        uint64_t        sector_xl;
+        uint32_t        crc_xl;
+        uint32_t        offset_xl;
+        uint8_t         type[8];
+} __attribute__((packed));
+
+#define LVM1_SB_OFF                     0x400
+
+int volume_id_probe_lvm1(struct volume_id *id, uint64_t off)
+{
+        struct lvm1_super_block *lvm;
+
+        dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+        lvm = volume_id_get_buffer(id, off + LVM1_SB_OFF, 0x800);
+        if (lvm == NULL)
+                return -1;
+
+        if (lvm->id[0] != 'H' || lvm->id[1] != 'M')
+                return -1;
+
+//      volume_id_set_usage(id, VOLUME_ID_RAID);
+//      id->type = "LVM1_member";
+
+        return 0;
+}
+
+#define LVM2_LABEL_ID                   "LABELONE"
+#define LVM2LABEL_SCAN_SECTORS          4
+
+int volume_id_probe_lvm2(struct volume_id *id, uint64_t off)
+{
+        const uint8_t *buf;
+        unsigned soff;
+        struct lvm2_super_block *lvm;
+
+        dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+        buf = volume_id_get_buffer(id, off, LVM2LABEL_SCAN_SECTORS * 0x200);
+        if (buf == NULL)
+                return -1;
+
+
+        for (soff = 0; soff < LVM2LABEL_SCAN_SECTORS * 0x200; soff += 0x200) {
+                lvm = (struct lvm2_super_block *) &buf[soff];
+
+                if (memcmp(lvm->id, LVM2_LABEL_ID, 8) == 0)
+                        goto found;
+        }
+
+        return -1;
+
+ found:
+//      memcpy(id->type_version, lvm->type, 8);
+//      volume_id_set_usage(id, VOLUME_ID_RAID);
+//      id->type = "LVM2_member";
+
+        return 0;
+}