drivers/filesystems/ext2/inc/common.h

   1 #ifndef _EXT2_COMMON_INCLUDE_
   2 #define _EXT2_COMMON_INCLUDE_
   3
   4 /* global ioctl */
   5 #define IOCTL_APP_VOLUME_PROPERTY \
   6 CTL_CODE(FILE_DEVICE_UNKNOWN, 2000, METHOD_BUFFERED, FILE_ANY_ACCESS)
   7
   8 #define IOCTL_APP_QUERY_PERFSTAT \
   9 CTL_CODE(FILE_DEVICE_UNKNOWN, 2001, METHOD_BUFFERED, FILE_ANY_ACCESS)
  10
  11 #define IOCTL_APP_MOUNT_POINT \
  12 CTL_CODE(FILE_DEVICE_UNKNOWN, 2002, METHOD_BUFFERED, FILE_ANY_ACCESS)
  13
  14
  15 /* performance / memory allocaiton statistics */
  16 #define PS_IRP_CONTEXT  0x00
  17 #define PS_VCB          0x01
  18 #define PS_FCB          0x02
  19 #define PS_CCB          0x03
  20 #define PS_MCB          0x04
  21 #define PS_EXTENT       0x05
  22 #define PS_RW_CONTEXT   0x06
  23 #define PS_VPB          0x07
  24 #define PS_FILE_NAME    0x08
  25 #define PS_MCB_NAME     0x09
  26 #define PS_INODE_NAME   0x0A
  27 #define PS_DIR_ENTRY    0x0B
  28 #define PS_DIR_PATTERN  0x0C
  29 #define PS_DISK_EVENT   0x0D
  30 #define PS_DISK_BUFFER  0x0E
  31 #define PS_BLOCK_DATA   0x0F
  32
  33 #define PS_EXT2_INODE   0x10
  34 #define PS_DENTRY       0x11
  35 #define PS_BUFF_HEAD    0x12
  36
  37 #define PS_MAX_TYPE_V1  (0x10)
  38 #define PS_MAX_TYPE_V2  (0x30)
  39
  40 typedef union {
  41
  42     ULONG           Slot[PS_MAX_TYPE_V1];
  43
  44     struct {
  45         ULONG       IrpContext;
  46         ULONG       Vcb;
  47         ULONG       Fcb;
  48         ULONG       Ccb;
  49         ULONG       Mcb;
  50         ULONG       Extent;
  51         ULONG       RwContext;   /* rw context */
  52         ULONG       Vpb;
  53         ULONG       FileName;
  54         ULONG       McbName;
  55         ULONG       InodeName;
  56         ULONG       DirEntry;    /* pDir */
  57         ULONG       DirPattern;  /* Ccb-> in Ext2QeuryDir */
  58         ULONG       ReadDiskEvent;
  59         ULONG       ReadDiskBuffer;
  60         ULONG       BlockData;   /* Ext2Expand&TruncateFile*/
  61     };
  62
  63 } EXT2_STAT_ARRAY_V1;
  64
  65 typedef union {
  66
  67     ULONG           Slot[PS_MAX_TYPE_V2];
  68
  69     struct {
  70         ULONG       IrpContext;
  71         ULONG       Vcb;
  72         ULONG       Fcb;
  73         ULONG       Ccb;
  74         ULONG       Mcb;
  75         ULONG       Extent;
  76         ULONG       RwContext;  /* rw context */
  77         ULONG       Vpb;
  78         ULONG       FileName;
  79         ULONG       McbName;
  80         ULONG       InodeName;
  81         ULONG       DirEntry;   /* pDir */
  82         ULONG       DirPattern; /* Ccb-> in Ext2QeuryDir */
  83         ULONG       ReadDiskEvent;
  84         ULONG       ReadDiskBuffer;
  85         ULONG       BlockData;  /* Ext2Expand&TruncateFile*/
  86         ULONG       Inodes;     /* inodes */
  87         ULONG       NameEntries;    /* name dentry */
  88         ULONG       BufferHead; /* Buffer Header allocations */
  89     };
  90
  91 } EXT2_STAT_ARRAY_V2;
  92
  93 typedef struct _EXT2_PERF_STATISTICS_V1 {
  94
  95     /* totoal number of processed/being processed requests */
  96     struct {
  97         ULONG           Processed;
  98         ULONG           Current;
  99     } Irps [IRP_MJ_MAXIMUM_FUNCTION + 1];
 100
 101     /* structure size */
 102     EXT2_STAT_ARRAY_V1  Unit;
 103
 104     /* current memory allocation statistics */
 105     EXT2_STAT_ARRAY_V1  Current;
 106
 107     /* memory allocated in bytes */
 108     EXT2_STAT_ARRAY_V1  Size;
 109
 110     /* totoal memory allocation statistics */
 111     EXT2_STAT_ARRAY_V1  Total;
 112
 113 } EXT2_PERF_STATISTICS_V1, *PEXT2_PERF_STATISTICS_V1;
 114
 115 #define EXT2_PERF_STAT_MAGIC '2SPE'
 116 #define EXT2_PERF_STAT_VER2   2
 117
 118 typedef struct _EXT2_PERF_STATISTICS_V2 {
 119
 120     ULONG               Magic;      /* EPS2 */
 121     USHORT              Version;    /* 02 */
 122     USHORT              Length;     /* sizeof(EXT2_PERF_STATISTICS_V2) */
 123
 124     /* totoal number of processed/being processed requests */
 125     struct {
 126         ULONG           Processed;
 127         ULONG           Current;
 128     } Irps [IRP_MJ_MAXIMUM_FUNCTION + 1];
 129
 130     /* structure size */
 131     EXT2_STAT_ARRAY_V2  Unit;
 132
 133     /* current memory allocation statistics */
 134     EXT2_STAT_ARRAY_V2  Current;
 135
 136     /* memory allocated in bytes */
 137     EXT2_STAT_ARRAY_V2  Size;
 138
 139     /* totoal memory allocation statistics */
 140     EXT2_STAT_ARRAY_V2  Total;
 141
 142 } EXT2_PERF_STATISTICS_V2, *PEXT2_PERF_STATISTICS_V2;
 143
 144 /* volume property ... */
 145
 146 #define EXT2_VOLUME_PROPERTY_MAGIC 'EVPM'
 147
 148 #define EXT2_FLAG_VP_SET_GLOBAL   0x00000001
 149
 150 #define APP_CMD_QUERY_VERSION     0x00000000 /* with global flag set */
 151 #define APP_CMD_QUERY_CODEPAGES   0x00000001
 152 #define APP_CMD_QUERY_PROPERTY    0x00000002
 153 #define APP_CMD_SET_PROPERTY      0x00000003
 154 #define APP_CMD_QUERY_PROPERTY2   0x00000004
 155 #define APP_CMD_SET_PROPERTY2     0x00000005
 156 #define APP_CMD_QUERY_PROPERTY3   0x00000006
 157 #define APP_CMD_SET_PROPERTY3     0x00000007
 158
 159 #define CODEPAGE_MAXLEN     0x20
 160 #define HIDINGPAT_LEN       0x20
 161
 162 typedef struct _EXT2_VOLUME_PROPERTY {
 163     ULONG               Magic;
 164     ULONG               Flags;
 165     ULONG               Command;
 166     BOOLEAN             bReadonly;
 167     BOOLEAN             bExt3Writable;
 168     BOOLEAN             bExt2;
 169     BOOLEAN             bExt3;
 170     CHAR                Codepage[CODEPAGE_MAXLEN];
 171 } EXT2_VOLUME_PROPERTY, *PEXT2_VOLUME_PROPERTY;
 172
 173 #ifdef __cplusplus
 174 typedef struct _EXT2_VOLUME_PROPERTY2:EXT2_VOLUME_PROPERTY {
 175 #else   // __cplusplus
 176 typedef struct _EXT2_VOLUME_PROPERTY2 {
 177     EXT2_VOLUME_PROPERTY ;
 178 #endif  // __cplusplus
 179
 180     /* new volume properties added after version 0.35 */
 181
 182     /* volume uuid */
 183     __u8                            UUID[16];
 184
 185     /* mount point: driver letter only */
 186     UCHAR                       DrvLetter;
 187
 188     /* checking bitmap */
 189     BOOLEAN                     bCheckBitmap;
 190
 191     /* global hiding patterns */
 192     BOOLEAN                     bHidingPrefix;
 193     BOOLEAN                     bHidingSuffix;
 194     CHAR                        sHidingPrefix[HIDINGPAT_LEN];
 195     CHAR                        sHidingSuffix[HIDINGPAT_LEN];
 196
 197 } EXT2_VOLUME_PROPERTY2, *PEXT2_VOLUME_PROPERTY2;
 198
 199 #define EXT2_VPROP3_AUTOMOUNT (1ULL << 0)
 200 #define EXT2_VPROP3_USERIDS   (1ULL << 1)
 201
 202 #ifdef __cplusplus
 203 typedef struct _EXT2_VOLUME_PROPERTY3:EXT2_VOLUME_PROPERTY2 {
 204 #else   // __cplusplus
 205 typedef struct _EXT2_VOLUME_PROPERTY3 {
 206     EXT2_VOLUME_PROPERTY2 ;
 207 #endif  // __cplusplus
 208     unsigned __int64       Flags2;
 209     ULONG                  AutoMount:1;
 210     ULONG                  EIDS:1;
 211     ULONG                  Reserved1:30;
 212     USHORT                 uid;
 213     USHORT                 gid;
 214     USHORT                 euid;
 215     USHORT                 egid;
 216     ULONG                  Reserved2[29];
 217 } EXT2_VOLUME_PROPERTY3, *PEXT2_VOLUME_PROPERTY3;
 218
 219 /* Ext2Fsd driver version and built time */
 220 typedef struct _EXT2_VOLUME_PROPERTY_VERSION {
 221     ULONG               Magic;
 222     ULONG               Flags;
 223     ULONG               Command;
 224     CHAR                Version[0x1C];
 225     CHAR                Time[0x20];
 226     CHAR                Date[0x20];
 227 } EXT2_VOLUME_PROPERTY_VERSION, *PEXT2_VOLUME_PROPERTY_VERSION;
 228
 229 /* performance statistics */
 230 #define EXT2_QUERY_PERFSTAT_MAGIC 'EVPM'
 231 #define EXT2_QUERY_PERFSTAT_VER2  0x8000000
 232
 233 typedef struct _EXT2_QUERY_PERFSTAT {
 234     ULONG                   Magic;
 235     ULONG                   Flags;
 236     ULONG                   Command;
 237     union {
 238         EXT2_PERF_STATISTICS_V1 PerfStatV1;
 239         EXT2_PERF_STATISTICS_V2 PerfStatV2;
 240     };
 241 } EXT2_QUERY_PERFSTAT, *PEXT2_QUERY_PERFSTAT;
 242
 243 #define EXT2_QUERY_PERFSTAT_SZV1 (FIELD_OFFSET(EXT2_QUERY_PERFSTAT, PerfStatV1) + sizeof(EXT2_PERF_STATISTICS_V1))
 244 #define EXT2_QUERY_PERFSTAT_SZV2 (FIELD_OFFSET(EXT2_QUERY_PERFSTAT, PerfStatV1) + sizeof(EXT2_PERF_STATISTICS_V2))
 245
 246 /* mountpoint management  */
 247 #define EXT2_APP_MOUNTPOINT_MAGIC 'EAMM'
 248 typedef struct _EXT2_MOUNT_POINT {
 249     ULONG                   Magic;
 250     ULONG                   Flags;
 251     ULONG                   Size;
 252     ULONG                   Command;
 253     USHORT                  Link[256];
 254     USHORT                  Name[256];
 255 } EXT2_MOUNT_POINT, *PEXT2_MOUNT_POINT;
 256
 257 #define APP_CMD_ADD_DOS_SYMLINK    0x00000001
 258 #define APP_CMD_DEL_DOS_SYMLINK    0x00000002
 259
 260
 261 #endif /* _EXT2_COMMON_INCLUDE_ */