1 files changed, 90 insertions, 0 deletions
diff --git a/include/grub/lvm.h b/include/grub/lvm.h
new file mode 100644
index 0000000..30a609c
--- /dev/null
+++ b/include/grub/lvm.h
@@ -0,0 +1,90 @@
+/* lvm.h - On disk structures for LVM. */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2006,2007  Free Software Foundation, Inc.
+ *
+ *  GRUB 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, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_LVM_H
+#define GRUB_LVM_H	1
+
+#include <grub/types.h>
+#include <grub/diskfilter.h>
+
+/* Length of ID string, excluding terminating zero. */
+#define GRUB_LVM_ID_STRLEN 38
+
+#define GRUB_LVM_LABEL_SIZE GRUB_DISK_SECTOR_SIZE
+#define GRUB_LVM_LABEL_SCAN_SECTORS 4L
+
+#define GRUB_LVM_LABEL_ID "LABELONE"
+#define GRUB_LVM_LVM2_LABEL "LVM2 001"
+
+#define GRUB_LVM_ID_LEN 32
+
+/* On disk - 32 bytes */
+struct grub_lvm_label_header {
+  grub_int8_t id[8];		/* LABELONE */
+  grub_uint64_t sector_xl;	/* Sector number of this label */
+  grub_uint32_t crc_xl;		/* From next field to end of sector */
+  grub_uint32_t offset_xl;	/* Offset from start of struct to contents */
+  grub_int8_t type[8];		/* LVM2 001 */
+} GRUB_PACKED;
+
+/* On disk */
+struct grub_lvm_disk_locn {
+  grub_uint64_t offset;		/* Offset in bytes to start sector */
+  grub_uint64_t size;		/* Bytes */
+} GRUB_PACKED;
+
+/* Fields with the suffix _xl should be xlate'd wherever they appear */
+/* On disk */
+struct grub_lvm_pv_header {
+  grub_int8_t pv_uuid[GRUB_LVM_ID_LEN];
+
+  /* This size can be overridden if PV belongs to a VG */
+  grub_uint64_t device_size_xl;	/* Bytes */
+
+  /* NULL-terminated list of data areas followed by */
+  /* NULL-terminated list of metadata area headers */
+  struct grub_lvm_disk_locn disk_areas_xl[0];	/* Two lists */
+} GRUB_PACKED;
+
+#define GRUB_LVM_FMTT_MAGIC "\040\114\126\115\062\040\170\133\065\101\045\162\060\116\052\076"
+#define GRUB_LVM_FMTT_VERSION 1
+#define GRUB_LVM_MDA_HEADER_SIZE 512
+
+/* On disk */
+struct grub_lvm_raw_locn {
+  grub_uint64_t offset;		/* Offset in bytes to start sector */
+  grub_uint64_t size;		/* Bytes */
+  grub_uint32_t checksum;
+  grub_uint32_t filler;
+} GRUB_PACKED;
+
+/* On disk */
+/* Structure size limited to one sector */
+struct grub_lvm_mda_header {
+  grub_uint32_t checksum_xl;	/* Checksum of rest of mda_header */
+  grub_int8_t magic[16];	/* To aid scans for metadata */
+  grub_uint32_t version;
+  grub_uint64_t start;		/* Absolute start byte of mda_header */
+  grub_uint64_t size;		/* Size of metadata area */
+
+  struct grub_lvm_raw_locn raw_locns[0];	/* NULL-terminated list */
+} GRUB_PACKED;
+
+
+#endif /* ! GRUB_LVM_H */