Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 220 insertions, 0 deletions

diff --git a/fs/partitions/ldm.h b/fs/partitions/ldm.h
new file mode 100644
index 000000000000..6e8d7952b8b5
--- /dev/null
+++ b/fs/partitions/ldm.h
@@ -0,0 +1,220 @@
+/**
+ * ldm - Part of the Linux-NTFS project.
+ *
+ * Copyright (C) 2001,2002 Richard Russon <ldm@flatcap.org>
+ * Copyright (C) 2001      Anton Altaparmakov <aia21@cantab.net>
+ * Copyright (C) 2001,2002 Jakob Kemi <jakob.kemi@telia.com>
+ *
+ * Documentation is available at http://linux-ntfs.sf.net/ldm
+ *
+ * This program 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 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program 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 this program (in the main directory of the Linux-NTFS source
+ * in the file COPYING); if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef _FS_PT_LDM_H_
+#define _FS_PT_LDM_H_
+
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/genhd.h>
+#include <linux/fs.h>
+#include <asm/unaligned.h>
+#include <asm/byteorder.h>
+
+struct parsed_partitions;
+
+/* Magic numbers in CPU format. */
+#define MAGIC_VMDB      0x564D4442              /* VMDB */
+#define MAGIC_VBLK      0x56424C4B              /* VBLK */
+#define MAGIC_PRIVHEAD  0x5052495648454144ULL   /* PRIVHEAD */
+#define MAGIC_TOCBLOCK  0x544F43424C4F434BULL   /* TOCBLOCK */
+
+/* The defined vblk types. */
+#define VBLK_VOL5               0x51            /* Volume,     version 5 */
+#define VBLK_CMP3               0x32            /* Component,  version 3 */
+#define VBLK_PRT3               0x33            /* Partition,  version 3 */
+#define VBLK_DSK3               0x34            /* Disk,       version 3 */
+#define VBLK_DSK4               0x44            /* Disk,       version 4 */
+#define VBLK_DGR3               0x35            /* Disk Group, version 3 */
+#define VBLK_DGR4               0x45            /* Disk Group, version 4 */
+
+/* vblk flags indicating extra information will be present */
+#define VBLK_FLAG_COMP_STRIPE   0x10
+#define VBLK_FLAG_PART_INDEX    0x08
+#define VBLK_FLAG_DGR3_IDS      0x08
+#define VBLK_FLAG_DGR4_IDS      0x08
+#define VBLK_FLAG_VOLU_ID1      0x08
+#define VBLK_FLAG_VOLU_ID2      0x20
+#define VBLK_FLAG_VOLU_SIZE     0x80
+#define VBLK_FLAG_VOLU_DRIVE    0x02
+
+/* size of a vblk's static parts */
+#define VBLK_SIZE_HEAD          16
+#define VBLK_SIZE_CMP3          22              /* Name and version */
+#define VBLK_SIZE_DGR3          12
+#define VBLK_SIZE_DGR4          44
+#define VBLK_SIZE_DSK3          12
+#define VBLK_SIZE_DSK4          45
+#define VBLK_SIZE_PRT3          28
+#define VBLK_SIZE_VOL5          59
+
+/* component types */
+#define COMP_STRIPE             0x01            /* Stripe-set */
+#define COMP_BASIC              0x02            /* Basic disk */
+#define COMP_RAID               0x03            /* Raid-set */
+
+/* Other constants. */
+#define LDM_DB_SIZE             2048            /* Size in sectors (= 1MiB). */
+
+#define OFF_PRIV1               6               /* Offset of the first privhead
+                                                   relative to the start of the
+                                                   device in sectors */
+
+/* Offsets to structures within the LDM Database in sectors. */
+#define OFF_PRIV2               1856            /* Backup private headers. */
+#define OFF_PRIV3               2047
+
+#define OFF_TOCB1               1               /* Tables of contents. */
+#define OFF_TOCB2               2
+#define OFF_TOCB3               2045
+#define OFF_TOCB4               2046
+
+#define OFF_VMDB                17              /* List of partitions. */
+
+#define WIN2K_DYNAMIC_PARTITION 0x42            /* Formerly SFS (Landis). */
+
+#define TOC_BITMAP1             "config"        /* Names of the two defined */
+#define TOC_BITMAP2             "log"           /* bitmaps in the TOCBLOCK. */
+
+/* Most numbers we deal with are big-endian and won't be aligned. */
+#define BE16(x)                 ((u16)be16_to_cpu(get_unaligned((__be16*)(x))))
+#define BE32(x)                 ((u32)be32_to_cpu(get_unaligned((__be32*)(x))))
+#define BE64(x)                 ((u64)be64_to_cpu(get_unaligned((__be64*)(x))))
+
+/* Borrowed from msdos.c */
+#define SYS_IND(p)              (get_unaligned(&(p)->sys_ind))
+
+struct frag {                           /* VBLK Fragment handling */
+        struct list_head list;
+        u32             group;
+        u8              num;            /* Total number of records */
+        u8              rec;            /* This is record number n */
+        u8              map;            /* Which portions are in use */
+        u8              data[0];
+};
+
+/* In memory LDM database structures. */
+
+#define GUID_SIZE               16
+
+struct privhead {                       /* Offsets and sizes are in sectors. */
+        u16     ver_major;
+        u16     ver_minor;
+        u64     logical_disk_start;
+        u64     logical_disk_size;
+        u64     config_start;
+        u64     config_size;
+        u8      disk_id[GUID_SIZE];
+};
+
+struct tocblock {                       /* We have exactly two bitmaps. */
+        u8      bitmap1_name[16];
+        u64     bitmap1_start;
+        u64     bitmap1_size;
+        u8      bitmap2_name[16];
+        u64     bitmap2_start;
+        u64     bitmap2_size;
+};
+
+struct vmdb {                           /* VMDB: The database header */
+        u16     ver_major;
+        u16     ver_minor;
+        u32     vblk_size;
+        u32     vblk_offset;
+        u32     last_vblk_seq;
+};
+
+struct vblk_comp {                      /* VBLK Component */
+        u8      state[16];
+        u64     parent_id;
+        u8      type;
+        u8      children;
+        u16     chunksize;
+};
+
+struct vblk_dgrp {                      /* VBLK Disk Group */
+        u8      disk_id[64];
+};
+
+struct vblk_disk {                      /* VBLK Disk */
+        u8      disk_id[GUID_SIZE];
+        u8      alt_name[128];
+};
+
+struct vblk_part {                      /* VBLK Partition */
+        u64     start;
+        u64     size;                   /* start, size and vol_off in sectors */
+        u64     volume_offset;
+        u64     parent_id;
+        u64     disk_id;
+        u8      partnum;
+};
+
+struct vblk_volu {                      /* VBLK Volume */
+        u8      volume_type[16];
+        u8      volume_state[16];
+        u8      guid[16];
+        u8      drive_hint[4];
+        u64     size;
+        u8      partition_type;
+};
+
+struct vblk_head {                      /* VBLK standard header */
+        u32 group;
+        u16 rec;
+        u16 nrec;
+};
+
+struct vblk {                           /* Generalised VBLK */
+        u8      name[64];
+        u64     obj_id;
+        u32     sequence;
+        u8      flags;
+        u8      type;
+        union {
+                struct vblk_comp comp;
+                struct vblk_dgrp dgrp;
+                struct vblk_disk disk;
+                struct vblk_part part;
+                struct vblk_volu volu;
+        } vblk;
+        struct list_head list;
+};
+
+struct ldmdb {                          /* Cache of the database */
+        struct privhead ph;
+        struct tocblock toc;
+        struct vmdb     vm;
+        struct list_head v_dgrp;
+        struct list_head v_disk;
+        struct list_head v_volu;
+        struct list_head v_comp;
+        struct list_head v_part;
+};
+
+int ldm_partition (struct parsed_partitions *state, struct block_device *bdev);
+
+#endif /* _FS_PT_LDM_H_ */
+