drivers/filesystems/btrfs/btrfsioctl.h

   1 // No copyright claimed in this file - do what you want with it.
   2
   3 #ifndef BTRFSIOCTL_H_DEFINED
   4 #define BTRFSIOCTL_H_DEFINED
   5
   6 #include "btrfs.h"
   7
   8 #define FSCTL_BTRFS_GET_FILE_IDS CTL_CODE(FILE_DEVICE_UNKNOWN, 0x829, METHOD_OUT_DIRECT, FILE_ANY_ACCESS)
   9 #define FSCTL_BTRFS_CREATE_SUBVOL CTL_CODE(FILE_DEVICE_UNKNOWN, 0x82a, METHOD_IN_DIRECT, FILE_ANY_ACCESS)
  10 #define FSCTL_BTRFS_CREATE_SNAPSHOT CTL_CODE(FILE_DEVICE_UNKNOWN, 0x82b, METHOD_IN_DIRECT, FILE_ANY_ACCESS)
  11 #define FSCTL_BTRFS_GET_INODE_INFO CTL_CODE(FILE_DEVICE_UNKNOWN, 0x82c, METHOD_OUT_DIRECT, FILE_ANY_ACCESS)
  12 #define FSCTL_BTRFS_SET_INODE_INFO CTL_CODE(FILE_DEVICE_UNKNOWN, 0x82d, METHOD_IN_DIRECT, FILE_ANY_ACCESS)
  13 #define FSCTL_BTRFS_GET_DEVICES CTL_CODE(FILE_DEVICE_UNKNOWN, 0x82e, METHOD_OUT_DIRECT, FILE_ANY_ACCESS)
  14 #define FSCTL_BTRFS_GET_USAGE CTL_CODE(FILE_DEVICE_UNKNOWN, 0x82f, METHOD_OUT_DIRECT, FILE_ANY_ACCESS)
  15 #define FSCTL_BTRFS_START_BALANCE CTL_CODE(FILE_DEVICE_UNKNOWN, 0x830, METHOD_IN_DIRECT, FILE_ANY_ACCESS)
  16 #define FSCTL_BTRFS_QUERY_BALANCE CTL_CODE(FILE_DEVICE_UNKNOWN, 0x831, METHOD_OUT_DIRECT, FILE_ANY_ACCESS)
  17 #define FSCTL_BTRFS_PAUSE_BALANCE CTL_CODE(FILE_DEVICE_UNKNOWN, 0x832, METHOD_IN_DIRECT, FILE_ANY_ACCESS)
  18 #define FSCTL_BTRFS_RESUME_BALANCE CTL_CODE(FILE_DEVICE_UNKNOWN, 0x833, METHOD_IN_DIRECT, FILE_ANY_ACCESS)
  19 #define FSCTL_BTRFS_STOP_BALANCE CTL_CODE(FILE_DEVICE_UNKNOWN, 0x834, METHOD_IN_DIRECT, FILE_ANY_ACCESS)
  20 #define FSCTL_BTRFS_ADD_DEVICE CTL_CODE(FILE_DEVICE_UNKNOWN, 0x835, METHOD_IN_DIRECT, FILE_ANY_ACCESS)
  21 #define FSCTL_BTRFS_REMOVE_DEVICE CTL_CODE(FILE_DEVICE_UNKNOWN, 0x836, METHOD_IN_DIRECT, FILE_ANY_ACCESS)
  22 #define IOCTL_BTRFS_QUERY_FILESYSTEMS CTL_CODE(FILE_DEVICE_UNKNOWN, 0x837, METHOD_OUT_DIRECT, FILE_ANY_ACCESS)
  23 #define FSCTL_BTRFS_GET_UUID CTL_CODE(FILE_DEVICE_UNKNOWN, 0x838, METHOD_OUT_DIRECT, FILE_ANY_ACCESS)
  24 #define FSCTL_BTRFS_START_SCRUB CTL_CODE(FILE_DEVICE_UNKNOWN, 0x839, METHOD_OUT_DIRECT, FILE_ANY_ACCESS)
  25 #define FSCTL_BTRFS_QUERY_SCRUB CTL_CODE(FILE_DEVICE_UNKNOWN, 0x83a, METHOD_OUT_DIRECT, FILE_ANY_ACCESS)
  26 #define FSCTL_BTRFS_PAUSE_SCRUB CTL_CODE(FILE_DEVICE_UNKNOWN, 0x83b, METHOD_OUT_DIRECT, FILE_ANY_ACCESS)
  27 #define FSCTL_BTRFS_RESUME_SCRUB CTL_CODE(FILE_DEVICE_UNKNOWN, 0x83c, METHOD_OUT_DIRECT, FILE_ANY_ACCESS)
  28 #define FSCTL_BTRFS_STOP_SCRUB CTL_CODE(FILE_DEVICE_UNKNOWN, 0x83d, METHOD_OUT_DIRECT, FILE_ANY_ACCESS)
  29 #define IOCTL_BTRFS_PROBE_VOLUME CTL_CODE(FILE_DEVICE_UNKNOWN, 0x83e, METHOD_OUT_DIRECT, FILE_ANY_ACCESS)
  30 #define FSCTL_BTRFS_RESET_STATS CTL_CODE(FILE_DEVICE_UNKNOWN, 0x83f, METHOD_IN_DIRECT, FILE_ANY_ACCESS)
  31 #define FSCTL_BTRFS_MKNOD CTL_CODE(FILE_DEVICE_UNKNOWN, 0x840, METHOD_IN_DIRECT, FILE_ANY_ACCESS)
  32 #define FSCTL_BTRFS_RECEIVED_SUBVOL CTL_CODE(FILE_DEVICE_UNKNOWN, 0x841, METHOD_IN_DIRECT, FILE_ANY_ACCESS)
  33 #define FSCTL_BTRFS_GET_XATTRS CTL_CODE(FILE_DEVICE_UNKNOWN, 0x842, METHOD_BUFFERED, FILE_ANY_ACCESS)
  34 #define FSCTL_BTRFS_SET_XATTR CTL_CODE(FILE_DEVICE_UNKNOWN, 0x843, METHOD_IN_DIRECT, FILE_ANY_ACCESS)
  35 #define FSCTL_BTRFS_RESERVE_SUBVOL CTL_CODE(FILE_DEVICE_UNKNOWN, 0x844, METHOD_IN_DIRECT, FILE_ANY_ACCESS)
  36 #define FSCTL_BTRFS_FIND_SUBVOL CTL_CODE(FILE_DEVICE_UNKNOWN, 0x845, METHOD_BUFFERED, FILE_ANY_ACCESS)
  37 #define FSCTL_BTRFS_SEND_SUBVOL CTL_CODE(FILE_DEVICE_UNKNOWN, 0x846, METHOD_BUFFERED, FILE_ANY_ACCESS)
  38 #define FSCTL_BTRFS_READ_SEND_BUFFER CTL_CODE(FILE_DEVICE_UNKNOWN, 0x847, METHOD_OUT_DIRECT, FILE_ANY_ACCESS)
  39 #define FSCTL_BTRFS_RESIZE CTL_CODE(FILE_DEVICE_UNKNOWN, 0x848, METHOD_IN_DIRECT, FILE_ANY_ACCESS)
  40
  41 typedef struct {
  42     UINT64 subvol;
  43     UINT64 inode;
  44     BOOL top;
  45 } btrfs_get_file_ids;
  46
  47 typedef struct {
  48     HANDLE subvol;
  49     BOOL readonly;
  50     BOOL posix;
  51     UINT16 namelen;
  52     WCHAR name[1];
  53 } btrfs_create_snapshot;
  54
  55 typedef struct {
  56     void* POINTER_32 subvol;
  57     BOOL readonly;
  58     BOOL posix;
  59     UINT16 namelen;
  60     WCHAR name[1];
  61 } btrfs_create_snapshot32;
  62
  63 #define BTRFS_COMPRESSION_ANY   0
  64 #define BTRFS_COMPRESSION_ZLIB  1
  65 #define BTRFS_COMPRESSION_LZO   2
  66
  67 typedef struct {
  68     UINT64 subvol;
  69     UINT64 inode;
  70     BOOL top;
  71     UINT8 type;
  72     UINT32 st_uid;
  73     UINT32 st_gid;
  74     UINT32 st_mode;
  75     UINT64 st_rdev;
  76     UINT64 flags;
  77     UINT32 inline_length;
  78     UINT64 disk_size[3];
  79     UINT8 compression_type;
  80 } btrfs_inode_info;
  81
  82 typedef struct {
  83     UINT64 flags;
  84     BOOL flags_changed;
  85     UINT32 st_uid;
  86     BOOL uid_changed;
  87     UINT32 st_gid;
  88     BOOL gid_changed;
  89     UINT32 st_mode;
  90     BOOL mode_changed;
  91     UINT8 compression_type;
  92     BOOL compression_type_changed;
  93 } btrfs_set_inode_info;
  94
  95 typedef struct {
  96     UINT32 next_entry;
  97     UINT64 dev_id;
  98     UINT64 size;
  99     UINT64 max_size;
 100     BOOL readonly;
 101     BOOL missing;
 102     ULONG device_number;
 103     ULONG partition_number;
 104     UINT64 stats[5];
 105     USHORT namelen;
 106     WCHAR name[1];
 107 } btrfs_device;
 108
 109 typedef struct {
 110     UINT64 dev_id;
 111     UINT64 alloc;
 112 } btrfs_usage_device;
 113
 114 typedef struct {
 115     UINT32 next_entry;
 116     UINT64 type;
 117     UINT64 size;
 118     UINT64 used;
 119     UINT64 num_devices;
 120     btrfs_usage_device devices[1];
 121 } btrfs_usage;
 122
 123 #define BTRFS_BALANCE_OPTS_ENABLED      0x001
 124 #define BTRFS_BALANCE_OPTS_PROFILES     0x002
 125 #define BTRFS_BALANCE_OPTS_DEVID        0x004
 126 #define BTRFS_BALANCE_OPTS_DRANGE       0x008
 127 #define BTRFS_BALANCE_OPTS_VRANGE       0x010
 128 #define BTRFS_BALANCE_OPTS_LIMIT        0x020
 129 #define BTRFS_BALANCE_OPTS_STRIPES      0x040
 130 #define BTRFS_BALANCE_OPTS_USAGE        0x080
 131 #define BTRFS_BALANCE_OPTS_CONVERT      0x100
 132 #define BTRFS_BALANCE_OPTS_SOFT         0x200
 133
 134 #define BLOCK_FLAG_SINGLE 0x1000000000000 // only used in balance
 135
 136 typedef struct {
 137     UINT64 flags;
 138     UINT64 profiles;
 139     UINT64 devid;
 140     UINT64 drange_start;
 141     UINT64 drange_end;
 142     UINT64 vrange_start;
 143     UINT64 vrange_end;
 144     UINT64 limit_start;
 145     UINT64 limit_end;
 146     UINT16 stripes_start;
 147     UINT16 stripes_end;
 148     UINT8 usage_start;
 149     UINT8 usage_end;
 150     UINT64 convert;
 151 } btrfs_balance_opts;
 152
 153 #define BTRFS_BALANCE_STOPPED   0
 154 #define BTRFS_BALANCE_RUNNING   1
 155 #define BTRFS_BALANCE_PAUSED    2
 156 #define BTRFS_BALANCE_REMOVAL   4
 157 #define BTRFS_BALANCE_ERROR     8
 158 #define BTRFS_BALANCE_SHRINKING 16
 159
 160 typedef struct {
 161     UINT32 status;
 162     UINT64 chunks_left;
 163     UINT64 total_chunks;
 164     NTSTATUS error;
 165     btrfs_balance_opts data_opts;
 166     btrfs_balance_opts metadata_opts;
 167     btrfs_balance_opts system_opts;
 168 } btrfs_query_balance;
 169
 170 typedef struct {
 171     btrfs_balance_opts opts[3];
 172 } btrfs_start_balance;
 173
 174 typedef struct {
 175     UINT8 uuid[16];
 176     BOOL missing;
 177     USHORT name_length;
 178     WCHAR name[1];
 179 } btrfs_filesystem_device;
 180
 181 typedef struct {
 182     UINT32 next_entry;
 183     UINT8 uuid[16];
 184     UINT32 num_devices;
 185     btrfs_filesystem_device device;
 186 } btrfs_filesystem;
 187
 188 #define BTRFS_SCRUB_STOPPED     0
 189 #define BTRFS_SCRUB_RUNNING     1
 190 #define BTRFS_SCRUB_PAUSED      2
 191
 192 typedef struct {
 193     UINT32 next_entry;
 194     UINT64 address;
 195     UINT64 device;
 196     BOOL recovered;
 197     BOOL is_metadata;
 198     BOOL parity;
 199
 200     union {
 201         struct {
 202             UINT64 subvol;
 203             UINT64 offset;
 204             UINT16 filename_length;
 205             WCHAR filename[1];
 206         } data;
 207
 208         struct {
 209             UINT64 root;
 210             UINT8 level;
 211             KEY firstitem;
 212         } metadata;
 213     };
 214 } btrfs_scrub_error;
 215
 216 typedef struct {
 217     UINT32 status;
 218     LARGE_INTEGER start_time;
 219     LARGE_INTEGER finish_time;
 220     UINT64 chunks_left;
 221     UINT64 total_chunks;
 222     UINT64 data_scrubbed;
 223     UINT64 duration;
 224     NTSTATUS error;
 225     UINT32 num_errors;
 226     btrfs_scrub_error errors;
 227 } btrfs_query_scrub;
 228
 229 typedef struct {
 230     UINT64 inode;
 231     UINT8 type;
 232     UINT64 st_rdev;
 233     UINT16 namelen;
 234     WCHAR name[1];
 235 } btrfs_mknod;
 236
 237 typedef struct {
 238     UINT64 generation;
 239     BTRFS_UUID uuid;
 240 } btrfs_received_subvol;
 241
 242 typedef struct {
 243     USHORT namelen;
 244     USHORT valuelen;
 245     char data[1];
 246 } btrfs_set_xattr;
 247
 248 typedef struct {
 249     BOOL readonly;
 250     BOOL posix;
 251     USHORT namelen;
 252     WCHAR name[1];
 253 } btrfs_create_subvol;
 254
 255 typedef struct {
 256     BTRFS_UUID uuid;
 257     UINT64 ctransid;
 258 } btrfs_find_subvol;
 259
 260 typedef struct {
 261     HANDLE parent;
 262     ULONG num_clones;
 263     HANDLE clones[1];
 264 } btrfs_send_subvol;
 265
 266 typedef struct {
 267     void* POINTER_32 parent;
 268     ULONG num_clones;
 269     void* POINTER_32 clones[1];
 270 } btrfs_send_subvol32;
 271
 272 typedef struct {
 273     UINT64 device;
 274     UINT64 size;
 275 } btrfs_resize;
 276
 277 #endif