source: trunk/src/kernel32/osliblvm.h@ 9022

Last change on this file since 9022 was 8401, checked in by sandervl, 23 years ago

hard disk access updates & fixes
File size: 22.6 KB
Line 
1/* $Id: osliblvm.h,v 1.2 2002-05-10 14:55:13 sandervl Exp $ */
2/*
3 * OS/2 LVM (Logical Volume Management) functions
4 *
5 * Copyright 2002 Sander van Leeuwen
6 *
7 * Project Odin Software License can be found in LICENSE.TXT
8 *
9 */
10#ifndef __OSLIBLVM_H__
11#define __OSLIBLVM_H__
12
13#include <win\winioctl.h>
14
15#ifdef OS2_INCLUDED
16
17typedef unsigned short int CARDINAL16;
18typedef unsigned long CARDINAL32;
19typedef unsigned int CARDINAL;
20typedef unsigned char BOOLEAN;
21typedef short int INTEGER16;
22typedef long int INTEGER32;
23typedef int INTEGER;
24typedef unsigned long DoubleWord;
25typedef short unsigned int Word;
26typedef unsigned long LBA;
27
28/* Define a Partition Sector Number. A Partition Sector Number is
29 relative to the start of a partition. The first sector in a partition
30 is PSN 0. */
31typedef unsigned long PSN;
32
33/* Define the size of a Partition Name. Partition Names are user defined names given to a partition. */
34#define PARTITION_NAME_SIZE 20
35
36/* Define the size of a volume name. Volume Names are user defined names given to a volume. */
37#define VOLUME_NAME_SIZE 20
38
39/* Define the size of a disk name. Disk Names are user defined names given to physical disk drives in the system. */
40#define DISK_NAME_SIZE 20
41
42/* The name of the filesystem in use on a partition. This name may be up to 12 ( + NULL terminator) characters long. */
43#define FILESYSTEM_NAME_SIZE 20
44
45/* The number of bytes in a sector on the disk. */
46#define BYTES_PER_SECTOR 512
47
48/* The following are invariant for a disk drive. */
49typedef struct _Drive_Control_Record {
50 CARDINAL32 Drive_Number; /* OS/2 Drive Number for this drive. */
51 CARDINAL32 Drive_Size; /* The total number of sectors on the drive. */
52 DoubleWord Drive_Serial_Number; /* The serial number assigned to this drive.
53 For info. purposes only. */
54 ULONG Drive_Handle; /* Handle used for operations on the disk that
55 this record corresponds to. */
56 CARDINAL32 Cylinder_Count; /* The number of cylinders on the drive. */
57 CARDINAL32 Heads_Per_Cylinder; /* The number of heads per cylinder for this drive. */
58 CARDINAL32 Sectors_Per_Track; /* The number of sectors per track for this drive. */
59 BOOLEAN Drive_Is_PRM; /* Set to TRUE if this drive is a PRM. */
60 BYTE Reserved[3]; /* Alignment. */
61} Drive_Control_Record;
62
63/* The following structure is returned by the Get_Drive_Control_Data function. */
64typedef struct _Drive_Control_Array{
65 Drive_Control_Record * Drive_Control_Data; /* An array of drive control records. */
66 CARDINAL32 Count; /* The number of entries in the array
67 of drive control records. */
68} Drive_Control_Array;
69
70
71/* The following structure defines the information that can be changed for a specific disk drive. */
72typedef struct _Drive_Information_Record {
73 CARDINAL32 Total_Available_Sectors; /* The number of sectors on the disk which are not currently assigned to a partition. */
74 CARDINAL32 Largest_Free_Block_Of_Sectors; /* The number of sectors in the largest contiguous block of available sectors. */
75 BOOLEAN Corrupt_Partition_Table; /* If TRUE, then the partitioning information found on the drive is incorrect! */
76 BOOLEAN Unusable; /* If TRUE, the drive's MBR is not accessible and the drive can not be partitioned. */
77 BOOLEAN IO_Error; /* If TRUE, then the last I/O operation on this drive failed! */
78 BOOLEAN Is_Big_Floppy; /* If TRUE, then the drive is a PRM formatted as a big floppy (i.e. the old style removable media support). */
79 char Drive_Name[DISK_NAME_SIZE]; /* User assigned name for this disk drive. */
80} Drive_Information_Record;
81
82typedef struct _Partition_Information_Record {
83 ULONG Partition_Handle; /* The handle used to perform
84 operations on this partition. */
85 ULONG Volume_Handle; /* If this partition is part
86 of a volume, this will be the
87 handle of the volume. If
88 this partition is NOT
89 part of a volume, then
90 this handle will be 0. */
91 ULONG Drive_Handle; /* The handle for the drive
92 this partition resides on. */
93 DoubleWord Partition_Serial_Number; /* The serial number assigned
94 to this partition. */
95 CARDINAL32 Partition_Start; /* The LBA of the first
96 sector of the partition. */
97 CARDINAL32 True_Partition_Size; /* The total number of
98 sectors comprising the partition. */
99 CARDINAL32 Usable_Partition_Size; /* The size of the partition
100 as reported to the IFSM. This is the
101 size of the partition less
102 any LVM overhead. */
103 CARDINAL32 Boot_Limit; /* The maximum number of
104 sectors from this block
105 of free space that can be
106 used to create a bootable
107 partition if you allocate
108 from the beginning of the block
109 of free space. */
110 BOOLEAN Spanned_Volume; /* TRUE if this partition is
111 part of a multi-partition
112 volume. */
113 BOOLEAN Primary_Partition; /* True or False. Any
114 non-zero value here indicates
115 that this partition is
116 a primary partition. Zero
117 here indicates that this
118 partition is a "logical drive"
119 - i.e. it resides inside of
120 an extended partition. */
121 BYTE Active_Flag; /* 80 = Partition is marked
122 as being active.
123 0 = Partition is not
124 active. */
125 BYTE OS_Flag; /* This field is from the
126 partition table. It is
127 known as the OS flag, the
128 Partition Type Field,
129 Filesystem Type, and
130 various other names.
131 Values of interest
132 If this field is: (values
133 are in hex)
134 07 = The partition is a
135 compatibility
136 partition formatted
137 for use with an
138 installable
139 filesystem, such as
140 HPFS or JFS.
141 00 = Unformatted partition
142 01 = FAT12 filesystem is
143 in use on this
144 partition.
145 04 = FAT16 filesystem is
146 in use on this
147 partition.
148 0A = OS/2 Boot Manager
149 Partition
150 35 = LVM partition
151 06 = OS/2 FAT16 partition */
152 BYTE Partition_Type; /* 0 = Free Space
153 1 = LVM Partition (Part of
154 an LVM Volume.)
155 2 = Compatibility Partition
156 All other values are reserved
157 for future use. */
158 BYTE Partition_Status; /* 0 = Free Space
159 1 = In Use - i.e. already
160 assigned to a volume.
161 2 = Available - i.e. not
162 currently assigned
163 to a volume. */
164 BOOLEAN On_Boot_Manager_Menu; /* Set to TRUE if this
165 partition is not part of
166 a Volume yet is on the
167 Boot Manager Menu. */
168 BYTE Reserved; /* Alignment. */
169 char Volume_Drive_Letter; /* The drive letter assigned
170 to the volume that this
171 partition is a part of. */
172 char Drive_Name[DISK_NAME_SIZE]; /* User assigned name for
173 this disk drive. */
174 char File_System_Name[FILESYSTEM_NAME_SIZE];/* The name of the filesystem
175 in use on this partition,
176 if it is known. */
177 char Partition_Name[PARTITION_NAME_SIZE]; /* The user assigned name for
178 this partition. */
179 char Volume_Name[VOLUME_NAME_SIZE]; /* If this partition is part
180 of a volume, then this
181 will be the name of the
182 volume that this partition
183 is a part of. If this record
184 represents free space,
185 then the Volume_Name will be
186 "FS xx", where xx is a unique
187 numeric ID generated by
188 LVM.DLL. Otherwise it
189 will be an empty string. */
190} Partition_Information_Record;
191
192/* The following defines are for use with the Partition_Type field in the Partition_Information_Record. */
193#define FREE_SPACE_PARTITION 0
194#define LVM_PARTITION 1
195#define COMPATIBILITY_PARTITION 2
196
197/* The following defines are for use with the Partition_Status field in the Partition_Information_Record. */
198#define PARTITION_IS_IN_USE 1
199#define PARTITION_IS_AVAILABLE 2
200#define PARTITION_IS_FREE_SPACE 0
201
202
203/* The following structure is returned by various functions in the LVM Engine. */
204typedef struct _Partition_Information_Array {
205 Partition_Information_Record * Partition_Array; /* An array of Partition_Information_Records. */
206 CARDINAL32 Count; /* The number of entries in the Partition_Array. */
207} Partition_Information_Array;
208
209/* The following items are invariant for a volume. */
210typedef struct _Volume_Control_Record {
211 DoubleWord Volume_Serial_Number; /* The serial number assigned to this volume. */
212 ULONG Volume_Handle; /* The handle used to perform operations on this volume. */
213 BOOLEAN Compatibility_Volume; /* TRUE indicates that this volume is compatible with older versions of OS/2.
214 FALSE indicates that this is an LVM specific volume and can not be used without OS2LVM.DMD. */
215 BYTE Device_Type; /* Indicates what type of device the Volume resides on:
216 0 = Hard Drive under LVM Control
217 1 = PRM under LVM Control
218 2 = CD-ROM
219 3 = Network drive
220 4 = Unknown device NOT under LVM Control
221 */
222 BYTE Reserved[2]; /* Alignment. */
223} Volume_Control_Record;
224
225/* The following define the device types used in the Device_Type field of the Volume_Control_Record. */
226#define LVM_HARD_DRIVE 0
227#define LVM_PRM 1
228#define NON_LVM_CDROM 2
229#define NETWORK_DRIVE 3
230#define NON_LVM_DEVICE 4
231
232/* The following structure is returned by the Get_Volume_Control_Data function. */
233typedef struct _Volume_Control_Array{
234 Volume_Control_Record * Volume_Control_Data; /* An array of volume control records. */
235 CARDINAL32 Count; /* The number of entries in the array of volume control records. */
236} Volume_Control_Array;
237
238
239/* The following information about a volume can (and often does) vary. */
240typedef struct _Volume_Information_Record {
241 CARDINAL32 Volume_Size; /* The number of sectors comprising the volume. */
242 CARDINAL32 Partition_Count; /* The number of partitions which comprise this volume. */
243 CARDINAL32 Drive_Letter_Conflict; /* 0 indicates that the drive letter preference for this volume is unique.
244 1 indicates that the drive letter preference for this volume
245 is not unique, but this volume got its preferred drive letter anyway.
246 2 indicates that the drive letter preference for this volume
247 is not unique, and this volume did NOT get its preferred drive letter.
248 4 indicates that this volume is currently "hidden" - i.e. it has
249 no drive letter preference at the current time. */
250 BOOLEAN Compatibility_Volume; /* TRUE if this is for a compatibility volume, FALSE otherwise. */
251 BOOLEAN Bootable; /* Set to TRUE if this volume appears on the Boot Manager menu, or if it is
252 a compatibility volume and its corresponding partition is the first active
253 primary partition on the first drive. */
254 char Drive_Letter_Preference; /* The drive letter that this volume desires to be. */
255 char Current_Drive_Letter; /* The drive letter currently used to access this volume. May be different than
256 Drive_Letter_Preference if there was a conflict ( i.e. Drive_Letter_Preference
257 is already in use by another volume ). */
258 char Initial_Drive_Letter; /* The drive letter assigned to this volume by the operating system when LVM was started.
259 This may be different from the Drive_Letter_Preference if there were conflicts, and
260 may be different from the Current_Drive_Letter. This will be 0x0 if the Volume did
261 not exist when the LVM Engine was opened (i.e. it was created during this LVM session). */
262 BOOLEAN New_Volume; /* Set to FALSE if this volume existed before the LVM Engine was opened. Set to
263 TRUE if this volume was created after the LVM Engine was opened. */
264 BYTE Status; /* 0 = None.
265 1 = Bootable
266 2 = Startable
267 3 = Installable. */
268 BYTE Reserved_1;
269 char Volume_Name[VOLUME_NAME_SIZE]; /* The user assigned name for this volume. */
270 char File_System_Name[FILESYSTEM_NAME_SIZE];/* The name of the filesystem in use on this partition, if it is known. */
271} Volume_Information_Record;
272
273
274/* Error codes returned by the LVM Engine. */
275#define LVM_ENGINE_NO_ERROR 0
276#define LVM_ENGINE_OUT_OF_MEMORY 1
277#define LVM_ENGINE_IO_ERROR 2
278#define LVM_ENGINE_BAD_HANDLE 3
279#define LVM_ENGINE_INTERNAL_ERROR 4
280#define LVM_ENGINE_ALREADY_OPEN 5
281#define LVM_ENGINE_NOT_OPEN 6
282#define LVM_ENGINE_NAME_TOO_BIG 7
283#define LVM_ENGINE_OPERATION_NOT_ALLOWED 8
284#define LVM_ENGINE_DRIVE_OPEN_FAILURE 9
285#define LVM_ENGINE_BAD_PARTITION 10
286#define LVM_ENGINE_CAN_NOT_MAKE_PRIMARY_PARTITION 11
287#define LVM_ENGINE_TOO_MANY_PRIMARY_PARTITIONS 12
288#define LVM_ENGINE_CAN_NOT_MAKE_LOGICAL_DRIVE 13
289#define LVM_ENGINE_REQUESTED_SIZE_TOO_BIG 14
290#define LVM_ENGINE_1024_CYLINDER_LIMIT 15
291#define LVM_ENGINE_PARTITION_ALIGNMENT_ERROR 16
292#define LVM_ENGINE_REQUESTED_SIZE_TOO_SMALL 17
293#define LVM_ENGINE_NOT_ENOUGH_FREE_SPACE 18
294#define LVM_ENGINE_BAD_ALLOCATION_ALGORITHM 19
295#define LVM_ENGINE_DUPLICATE_NAME 20
296#define LVM_ENGINE_BAD_NAME 21
297#define LVM_ENGINE_BAD_DRIVE_LETTER_PREFERENCE 22
298#define LVM_ENGINE_NO_DRIVES_FOUND 23
299#define LVM_ENGINE_WRONG_VOLUME_TYPE 24
300#define LVM_ENGINE_VOLUME_TOO_SMALL 25
301#define LVM_ENGINE_BOOT_MANAGER_ALREADY_INSTALLED 26
302#define LVM_ENGINE_BOOT_MANAGER_NOT_FOUND 27
303#define LVM_ENGINE_INVALID_PARAMETER 28
304#define LVM_ENGINE_BAD_FEATURE_SET 29
305#define LVM_ENGINE_TOO_MANY_PARTITIONS_SPECIFIED 30
306#define LVM_ENGINE_LVM_PARTITIONS_NOT_BOOTABLE 31
307#define LVM_ENGINE_PARTITION_ALREADY_IN_USE 32
308#define LVM_ENGINE_SELECTED_PARTITION_NOT_BOOTABLE 33
309#define LVM_ENGINE_VOLUME_NOT_FOUND 34
310#define LVM_ENGINE_DRIVE_NOT_FOUND 35
311#define LVM_ENGINE_PARTITION_NOT_FOUND 36
312#define LVM_ENGINE_TOO_MANY_FEATURES_ACTIVE 37
313#define LVM_ENGINE_PARTITION_TOO_SMALL 38
314#define LVM_ENGINE_MAX_PARTITIONS_ALREADY_IN_USE 39
315#define LVM_ENGINE_IO_REQUEST_OUT_OF_RANGE 40
316#define LVM_ENGINE_SPECIFIED_PARTITION_NOT_STARTABLE 41
317#define LVM_ENGINE_SELECTED_VOLUME_NOT_STARTABLE 42
318#define LVM_ENGINE_EXTENDFS_FAILED 43
319#define LVM_ENGINE_REBOOT_REQUIRED 44
320
321#endif
322
323#define VOLUME_NAME_PREFIX "\\\\?\\Volume\\"
324
325BOOL OSLibLVMInit();
326void OSLibLVMExit();
327HANDLE OSLibLVMQueryVolumeControlData();
328void OSLibLVMFreeVolumeControlData(HANDLE hVolumeControlData);
329BOOL OSLibLVMQueryVolumeName(HANDLE hVolumeControlData, ULONG volindex,
330 LPSTR lpszVolumeName, DWORD cchBufferLength);
331
332BOOL OSLibLVMGetPartitionInfo(ULONG driveLetter, LPSTR lpszVolumeName, PPARTITION_INFORMATION pPartition);
333BOOL OSLibLVMGetVolumeExtents(ULONG driveLetter, LPSTR lpszVolumeName, PVOLUME_DISK_EXTENTS pVolExtent, BOOL *pfLVMVolume = NULL);
334
335ULONG OSLibLVMGetDriveType(LPCSTR lpszVolume);
336CHAR OSLibLVMQueryDriveFromVolumeName(LPCSTR lpszVolume);
337BOOL OSLibLVMGetVolumeNameForVolumeMountPoint(LPCSTR lpszVolumeMountPoint, LPSTR lpszVolumeName,
338 DWORD cchBufferLength);
339
340
341DWORD OSLibLVMQueryVolumeFS(LPSTR lpszVolume, LPSTR lpFileSystemNameBuffer, DWORD nFileSystemNameSize);
342DWORD OSLibLVMQueryVolumeSerialAndName(LPSTR lpszVolume, LPDWORD lpVolumeSerialNumber, LPSTR lpVolumeNameBuffer, DWORD nVolumeNameSize);
343
344BOOL OSLibLVMStripVolumeName(LPCSTR lpszWin32VolumeName, LPSTR lpszOS2VolumeName, DWORD cchBufferLength);
345
346#endif //__OSLIBLVM_H__
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