src/libcaptive/client/file.c

   1 /* $Id$
   2  * captive vfs 'file' interface to reactos
   3  * Copyright (C) 2002-2003 Jan Kratochvil <project-captive@jankratochvil.net>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; exactly version 2 of June 1991 is required
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19
  20 #include "config.h"
  21
  22 #include "captive/client-file.h"        /* self */
  23 #include "file.h"       /* self-priv */
  24 #include "directory.h"
  25 #include "lib.h"
  26 #include <glib/gmessages.h>
  27 #include "captive/unicode.h"
  28 #include "reactos/ntos/types.h" /* for HANDLE */
  29 #include "reactos/ddk/iotypes.h"        /* for IO_STATUS_BLOCK */
  30 #include "reactos/ddk/iofuncs.h"        /* for IoCreateFile() */
  31 #include "captive/sandbox.h"
  32 #include "result.h"
  33 #include "captive/client-directory.h"
  34 #include "reactos/ddk/obfuncs.h"        /* for ObReferenceObjectByHandle() */
  35 #include "captive/macros.h"
  36
  37
  38 static gpointer captive_file_object_parent_class=NULL;
  39
  40
  41 static GnomeVFSResult captive_file_close(CaptiveFileObject *captive_file_object);
  42
  43 static void captive_file_object_finalize(CaptiveFileObject *captive_file_object)
  44 {
  45 GnomeVFSResult errvfsresult;
  46
  47         g_return_if_fail(captive_file_object!=NULL);
  48
  49         errvfsresult=captive_file_close(captive_file_object);
  50         g_assert(errvfsresult==GNOME_VFS_OK);
  51
  52         G_OBJECT_CLASS(captive_file_object_parent_class)->finalize((GObject *)captive_file_object);
  53 }
  54
  55
  56 static void captive_file_object_class_init(CaptiveFileObjectClass *class)
  57 {
  58 GObjectClass *gobject_class=G_OBJECT_CLASS(class);
  59
  60         captive_file_object_parent_class=g_type_class_ref(G_TYPE_OBJECT);
  61         gobject_class->finalize=(void (*)(GObject *object))captive_file_object_finalize;
  62 }
  63
  64
  65 static void captive_file_object_init(CaptiveFileObject *captive_file_object)
  66 {
  67         captive_file_object->file_Handle=NULL;
  68 }
  69
  70
  71 GType captive_file_object_get_type(void)
  72 {
  73 static GType captive_file_object_type=0;
  74
  75         if (!captive_file_object_type) {
  76 static const GTypeInfo captive_file_object_info={
  77                                 sizeof(CaptiveFileObjectClass),
  78                                 NULL,   /* base_init */
  79                                 NULL,   /* base_finalize */
  80                                 (GClassInitFunc)captive_file_object_class_init,
  81                                 NULL,   /* class_finalize */
  82                                 NULL,   /* class_data */
  83                                 sizeof(CaptiveFileObject),
  84                                 5,      /* n_preallocs */
  85                                 (GInstanceInitFunc)captive_file_object_init,
  86                                 };
  87
  88                 captive_file_object_type=g_type_register_static(G_TYPE_OBJECT,
  89                                 "CaptiveFileObject",&captive_file_object_info,0);
  90                 }
  91
  92         return captive_file_object_type;
  93 }
  94
  95
  96 static GnomeVFSResult captive_file_new_internal(CaptiveFileObject **captive_file_object_return,
  97                 const gchar *pathname,GnomeVFSOpenMode mode,gboolean create,gboolean create_exclusive,guint create_perm)
  98 {
  99 IO_STATUS_BLOCK file_IoStatusBlock;
 100 GnomeVFSResult errvfsresult;
 101 OBJECT_ATTRIBUTES file_ObjectAttributes;
 102 HANDLE file_Handle;
 103 CaptiveFileObject *captive_file_object;
 104 NTSTATUS err;
 105
 106         if (CAPTIVE_IS_SANDBOX_PARENT())
 107                 return captive_sandbox_parent_file_new_open(captive_file_object_return,pathname,mode);
 108
 109         g_return_val_if_fail(captive_file_object_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 110         g_return_val_if_fail(pathname!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 111
 112         *captive_file_object_return=NULL;
 113
 114         errvfsresult=captive_ObjectAttributes_init(pathname,&file_ObjectAttributes);
 115         g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 116
 117         /* open */
 118         err=IoCreateFile(
 119                         &file_Handle,   /* FileHandle */
 120                         0
 121                                         |(!(mode&GNOME_VFS_OPEN_READ ) ? 0 : FILE_READ_DATA)
 122                                         |(!(mode&GNOME_VFS_OPEN_WRITE) ? 0 : FILE_WRITE_DATA | FILE_APPEND_DATA | FILE_WRITE_ATTRIBUTES)
 123                                         |(  mode!=0                    ? 0 : FILE_READ_ATTRIBUTES)
 124                                         ,       /* DesiredAccess */
 125                         &file_ObjectAttributes, /* ObjectAttributes */
 126                         &file_IoStatusBlock,    /* IoStatusBlock */
 127                         NULL,   /* AllocationSize; ignored for open */
 128                         (!create || create_perm&0200 ? FILE_ATTRIBUTE_NORMAL: FILE_ATTRIBUTE_READONLY), /* FileAttributes; ignored for open */
 129                         (!create || !create_exclusive   /* ShareAccess; 0 means exclusive */
 130                                         ? (FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE)
 131                                         : 0),
 132                         (!create ? FILE_OPEN : FILE_CREATE),    /* CreateDisposition */
 133                         /* FILE_SYNCHRONOUS_IO_{,NON}ALERT: We need to allow W32 filesystem
 134                                  * any waits to not to let it return STATUS_CANT_WAIT us.
 135                                  * Alertability should have only effect on asynchronous events
 136                                  * from KeWaitForSingleObject() by setting/clearing its parameter 'Alertable'.
 137                                  */
 138                         FILE_SYNCHRONOUS_IO_ALERT,      /* CreateOptions */
 139                         NULL,   /* EaBuffer */
 140                         0,      /* EaLength */
 141                         CreateFileTypeNone,     /* CreateFileType */
 142                         NULL,   /* ExtraCreateParameters */
 143                         0);     /* Options */
 144         g_free(file_ObjectAttributes.ObjectName);       /* left from captive_file_uri_parent_init() */
 145         g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
 146         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 147                 return errvfsresult;
 148         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 149         g_return_val_if_fail(file_IoStatusBlock.Information
 150                                         ==(!create ? FILE_OPENED : FILE_CREATED),
 151                         GNOME_VFS_ERROR_GENERIC);
 152
 153         captive_file_object=g_object_new(
 154                         CAPTIVE_FILE_TYPE_OBJECT,       /* object_type */
 155                         NULL);  /* first_property_name; FIXME: support properties */
 156
 157         captive_file_object->file_Handle=file_Handle;
 158         captive_file_object->offset=0;
 159
 160         *captive_file_object_return=captive_file_object;
 161         return GNOME_VFS_OK;
 162 }
 163
 164
 165 GnomeVFSResult captive_file_new_open
 166                 (CaptiveFileObject **captive_file_object_return,const gchar *pathname,GnomeVFSOpenMode mode)
 167 {
 168         g_return_val_if_fail(captive_file_object_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 169         g_return_val_if_fail(pathname!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 170
 171         return captive_file_new_internal(captive_file_object_return,pathname,mode,
 172                         FALSE,  /* create */
 173                         FALSE,  /* create_exclusive; ignored */
 174                         0);     /* create_perm; ignored */
 175 }
 176
 177
 178 GnomeVFSResult captive_file_new_create
 179                 (CaptiveFileObject **captive_file_object_return,const gchar *pathname,GnomeVFSOpenMode mode,gboolean exclusive,guint perm)
 180 {
 181         g_return_val_if_fail(captive_file_object_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 182         g_return_val_if_fail(pathname!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 183
 184         return captive_file_new_internal(captive_file_object_return,pathname,mode,
 185                         TRUE,   /* create */
 186                         exclusive,      /* create_exclusive */
 187                         perm);  /* create_perm */
 188 }
 189
 190
 191 static GnomeVFSResult captive_file_close(CaptiveFileObject *captive_file_object)
 192 {
 193 NTSTATUS err;
 194 HANDLE file_Handle;
 195
 196         if (CAPTIVE_IS_SANDBOX_PARENT())
 197                 return captive_sandbox_parent_file_close(captive_file_object);
 198
 199         g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 200         g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);    /* already closed */
 201
 202         file_Handle=captive_file_object->file_Handle;
 203         captive_file_object->file_Handle=NULL;
 204         err=NtClose(file_Handle);
 205         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 206
 207         return GNOME_VFS_OK;
 208 }
 209
 210
 211 GnomeVFSResult captive_file_read(CaptiveFileObject *captive_file_object,
 212                 gpointer buffer,GnomeVFSFileSize num_bytes,GnomeVFSFileSize *bytes_read_return)
 213 {
 214 NTSTATUS err;
 215 IO_STATUS_BLOCK file_IoStatusBlock;
 216 LARGE_INTEGER file_offset;
 217 GnomeVFSResult errvfsresult;
 218
 219         if (CAPTIVE_IS_SANDBOX_PARENT())
 220                 return captive_sandbox_parent_file_read(captive_file_object,buffer,num_bytes,bytes_read_return);
 221
 222         g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 223         g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 224         g_return_val_if_fail(buffer!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 225         g_return_val_if_fail(bytes_read_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 226         g_return_val_if_fail(num_bytes==(ULONG)num_bytes,GNOME_VFS_ERROR_BAD_PARAMETERS);
 227
 228         file_offset.QuadPart=captive_file_object->offset;
 229         err=NtReadFile(
 230                         captive_file_object->file_Handle,       /* FileHandle */
 231                         NULL,   /* EventHandle; completion signalling; optional */
 232                         NULL,   /* ApcRoutine; optional */
 233                         NULL,   /* ApcContext; optional */
 234                         &file_IoStatusBlock,    /* IoStatusBlock */
 235                         buffer, /* Buffer */
 236                         num_bytes,      /* Length */
 237                         &file_offset,   /* ByteOffset */
 238                         NULL);  /* Key; NULL means no file locking key */
 239         if (err==STATUS_END_OF_FILE) {
 240                 g_return_val_if_fail(file_IoStatusBlock.Status==STATUS_END_OF_FILE,GNOME_VFS_ERROR_GENERIC);
 241                 g_return_val_if_fail(file_IoStatusBlock.Information==0,GNOME_VFS_ERROR_GENERIC);
 242                 *bytes_read_return=0;
 243                 return GNOME_VFS_ERROR_EOF;
 244                 }
 245         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 246                 return errvfsresult;
 247         g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
 248         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 249         g_return_val_if_fail(file_IoStatusBlock.Information<=num_bytes,GNOME_VFS_ERROR_GENERIC);
 250
 251         captive_file_object->offset+=file_IoStatusBlock.Information;
 252         *bytes_read_return=file_IoStatusBlock.Information;
 253         return GNOME_VFS_OK;
 254 }
 255
 256
 257 GnomeVFSResult captive_file_write(CaptiveFileObject *captive_file_object,
 258                 gconstpointer buffer,GnomeVFSFileSize num_bytes,GnomeVFSFileSize *bytes_written_return)
 259 {
 260 NTSTATUS err;
 261 IO_STATUS_BLOCK file_IoStatusBlock;
 262 LARGE_INTEGER file_offset;
 263
 264         if (CAPTIVE_IS_SANDBOX_PARENT())
 265                 return captive_sandbox_parent_file_write(captive_file_object,buffer,num_bytes,bytes_written_return);
 266
 267         g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 268         g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 269         g_return_val_if_fail(buffer!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 270         g_return_val_if_fail(bytes_written_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 271         g_return_val_if_fail(num_bytes==(ULONG)num_bytes,GNOME_VFS_ERROR_BAD_PARAMETERS);
 272
 273         file_offset.QuadPart=captive_file_object->offset;
 274         err=NtWriteFile(
 275                         captive_file_object->file_Handle,       /* FileHandle */
 276                         NULL,   /* Event; completion signalling; optional */
 277                         NULL,   /* ApcRoutine; optional */
 278                         NULL,   /* ApcContext; optional */
 279                         &file_IoStatusBlock,    /* IoStatusBlock */
 280                         (gpointer /* de-const */ )buffer,       /* Buffer */
 281                         num_bytes,      /* Length */
 282                         &file_offset,   /* ByteOffset */
 283                         NULL);  /* Key; NULL means no file locking key */
 284         g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
 285         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 286         g_return_val_if_fail(file_IoStatusBlock.Information==num_bytes,GNOME_VFS_ERROR_GENERIC);
 287
 288         captive_file_object->offset+=file_IoStatusBlock.Information;
 289         *bytes_written_return=file_IoStatusBlock.Information;
 290         return GNOME_VFS_OK;
 291 }
 292
 293
 294 GnomeVFSResult captive_file_seek
 295                 (CaptiveFileObject *captive_file_object,GnomeVFSSeekPosition whence,GnomeVFSFileOffset offset)
 296 {
 297         if (CAPTIVE_IS_SANDBOX_PARENT())
 298                 return captive_sandbox_parent_file_seek(captive_file_object,whence,offset);
 299
 300         g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 301         g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 302
 303         switch (whence) {
 304                 case GNOME_VFS_SEEK_START:
 305                         captive_file_object->offset=offset;
 306                         break;
 307                 case GNOME_VFS_SEEK_CURRENT:
 308                         if (0
 309                                         || (offset>0 && (captive_file_object->offset+offset)<captive_file_object->offset)
 310                                         || (offset<0 && (captive_file_object->offset+offset)>captive_file_object->offset))
 311                                 return GNOME_VFS_ERROR_BAD_PARAMETERS;
 312                         captive_file_object->offset+=offset;
 313                         break;
 314                 case GNOME_VFS_SEEK_END:
 315                         g_assert_not_reached(); /* NOT IMPLEMENTED YET */
 316                         break;
 317                 default:
 318                         g_return_val_if_reached(GNOME_VFS_ERROR_BAD_PARAMETERS);
 319                 }
 320
 321         return GNOME_VFS_OK;
 322 }
 323
 324
 325 GnomeVFSResult captive_file_tell(CaptiveFileObject *captive_file_object,GnomeVFSFileOffset *offset_return)
 326 {
 327         if (CAPTIVE_IS_SANDBOX_PARENT())
 328                 return captive_sandbox_parent_file_tell(captive_file_object,offset_return);
 329
 330         g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 331         g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 332         g_return_val_if_fail(offset_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 333
 334         *offset_return=captive_file_object->offset;
 335         return GNOME_VFS_OK;
 336 }
 337
 338
 339 GnomeVFSResult captive_file_remove(CaptiveFileObject *captive_file_object)
 340 {
 341 NTSTATUS err;
 342 FILE_DISPOSITION_INFORMATION FileDispositionInformation_struct;
 343 IO_STATUS_BLOCK file_IoStatusBlock;
 344 GnomeVFSResult errvfsresult;
 345
 346         g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 347         g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 348
 349         FileDispositionInformation_struct.DoDeleteFile=TRUE;
 350
 351         err=NtSetInformationFile(
 352                         captive_file_object->file_Handle,       /* FileHandle */
 353                         &file_IoStatusBlock,    /* IoStatusBlock */
 354                         &FileDispositionInformation_struct,     /* FileInformation */
 355                         sizeof(FileDispositionInformation_struct),      /* Length */
 356                         FileDispositionInformation);    /* FileInformationClass */
 357         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 358                 return errvfsresult;
 359         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 360
 361         return GNOME_VFS_OK;
 362 }
 363
 364
 365 /* Use 'FileAllInformationStruct' identifier instead of the logical 'FileAllInformation'
 366  * to prevent override of enum member 'FileAllInformation'
 367  */
 368 static GnomeVFSResult FileAllInformationStruct_to_GnomeVFSFileInfo(GnomeVFSFileInfo *file_info,
 369                 FILE_ALL_INFORMATION *FileAllInformationStruct,IO_STATUS_BLOCK *IoStatusBlock)
 370 {
 371 UNICODE_STRING FileName_UnicodeString;
 372 BOOLEAN errBOOLEAN;
 373 ULONG tmp_ULONG;
 374
 375         g_return_val_if_fail(file_info!=NULL,GNOME_VFS_ERROR_GENERIC);
 376         g_return_val_if_fail(FileAllInformationStruct!=NULL,GNOME_VFS_ERROR_GENERIC);
 377
 378         g_return_val_if_fail(NT_SUCCESS(IoStatusBlock->Status),GNOME_VFS_ERROR_GENERIC);
 379
 380         file_info->valid_fields=0;
 381
 382         FileName_UnicodeString.Length=FileAllInformationStruct->NameInformation.FileNameLength;
 383         FileName_UnicodeString.MaximumLength=FileAllInformationStruct->NameInformation.FileNameLength
 384                         +sizeof(*FileAllInformationStruct->NameInformation.FileName);   /* 0-terminator */
 385         g_assert((gpointer)(((char *)FileAllInformationStruct->NameInformation.FileName)+FileName_UnicodeString.Length)
 386                         <=(gpointer)(((char *)FileAllInformationStruct)+IoStatusBlock->Information));
 387                                         /* ensure we fit below '->IoStatusBlock->Information' at least without the 0-terminator */
 388         FileAllInformationStruct->NameInformation.FileName[FileAllInformationStruct->NameInformation.FileNameLength
 389                         /sizeof(*FileAllInformationStruct->NameInformation.FileName)]=0;        /* 0-terminate it */
 390         FileName_UnicodeString.Buffer=FileAllInformationStruct->NameInformation.FileName;
 391         file_info->name=captive_UnicodeString_to_utf8_malloc(&FileName_UnicodeString);
 392         /* '->name' assumed for 'file_info->valid_fields' */
 393
 394         /* FIXME: What is 'FILE_ATTRIBUTE_NORMAL'? */
 395         switch (FileAllInformationStruct->BasicInformation.FileAttributes & (0
 396                         | FILE_ATTRIBUTE_DIRECTORY
 397                         | FILE_ATTRIBUTE_DEVICE)) {
 398                 case 0:                        file_info->type=GNOME_VFS_FILE_TYPE_REGULAR;   break;
 399                 case FILE_ATTRIBUTE_DIRECTORY: file_info->type=GNOME_VFS_FILE_TYPE_DIRECTORY; break;
 400                 case FILE_ATTRIBUTE_DEVICE:    file_info->type=GNOME_VFS_FILE_TYPE_SOCKET;
 401                         /* or GNOME_VFS_FILE_TYPE_CHARACTER_DEVICE or GNOME_VFS_FILE_TYPE_BLOCK_DEVICE ? */
 402                         break;
 403                 default:                       file_info->type=GNOME_VFS_FILE_TYPE_UNKNOWN;   break;
 404                 }
 405         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_TYPE;
 406
 407         /* we use 0600 for r/w files, 0400 for FILE_ATTRIBUTE_READONLY */
 408         file_info->permissions=GNOME_VFS_PERM_USER_READ;
 409         if (file_info->type==GNOME_VFS_FILE_TYPE_DIRECTORY)
 410                 file_info->permissions|=GNOME_VFS_PERM_USER_EXEC;
 411         if (!(FileAllInformationStruct->BasicInformation.FileAttributes & FILE_ATTRIBUTE_READONLY))
 412                 file_info->permissions|=GNOME_VFS_PERM_USER_WRITE;
 413         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_PERMISSIONS;
 414
 415         file_info->size=FileAllInformationStruct->StandardInformation.EndOfFile.QuadPart;
 416         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_SIZE;
 417
 418         file_info->block_count=FileAllInformationStruct->StandardInformation.AllocationSize.QuadPart/512;
 419         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_BLOCK_COUNT;
 420
 421         file_info->flags=GNOME_VFS_FILE_FLAGS_LOCAL;
 422         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_FLAGS;
 423
 424         if (FileAllInformationStruct->BasicInformation.LastAccessTime.QuadPart) {       /* it may be 0 if not set */
 425                 errBOOLEAN=RtlTimeToSecondsSince1970(&FileAllInformationStruct->BasicInformation.LastAccessTime,&tmp_ULONG);
 426                 g_assert(errBOOLEAN==TRUE);
 427                 file_info->atime=tmp_ULONG;
 428                 file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_ATIME;
 429                 }
 430
 431         /* it may be 0 if not set */
 432         if (FileAllInformationStruct->BasicInformation.LastWriteTime.QuadPart || FileAllInformationStruct->BasicInformation.ChangeTime.QuadPart) {
 433                 errBOOLEAN=RtlTimeToSecondsSince1970(
 434                                 /* take the more recent (==bigger) time: */
 435                                 (FileAllInformationStruct->BasicInformation.LastWriteTime.QuadPart > FileAllInformationStruct->BasicInformation.ChangeTime.QuadPart
 436                                                 ? &FileAllInformationStruct->BasicInformation.LastWriteTime : &FileAllInformationStruct->BasicInformation.ChangeTime),
 437                                 &tmp_ULONG);
 438                 g_assert(errBOOLEAN==TRUE);
 439                 file_info->mtime=tmp_ULONG;
 440                 file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_MTIME;
 441                 }
 442
 443         if (FileAllInformationStruct->BasicInformation.CreationTime.QuadPart) { /* it may be 0 if not set */
 444                 errBOOLEAN=RtlTimeToSecondsSince1970(&FileAllInformationStruct->BasicInformation.CreationTime,&tmp_ULONG);
 445                 g_assert(errBOOLEAN==TRUE);
 446                 file_info->ctime=tmp_ULONG;
 447                 file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_CTIME;
 448                 }
 449
 450         return GNOME_VFS_OK;
 451 }
 452
 453
 454 GnomeVFSResult captive_file_file_info_get(CaptiveFileObject *captive_file_object,
 455                 GnomeVFSFileInfo *file_info)
 456 {
 457 NTSTATUS err;
 458 IO_STATUS_BLOCK file_IoStatusBlock;
 459 FILE_ALL_INFORMATION *FileAllInformationStruct;
 460 GnomeVFSResult errvfsresult;
 461 char QueryFile_buf[sizeof(FILE_ALL_INFORMATION)
 462                 +0x1000 /* max 'FileName' length, 255 should be enough */ * sizeof(WCHAR /* *FILE_ALL_INFORMATION.NameInformation.FileName */ )];
 463
 464         g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 465         g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 466         g_return_val_if_fail(file_info!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 467
 468         /* query */
 469         FileAllInformationStruct=(void *)QueryFile_buf;
 470         err=NtQueryInformationFile(
 471                         captive_file_object->file_Handle,       /* FileHandle */
 472                         &file_IoStatusBlock,    /* IoStatusBlock */
 473                         (gpointer)QueryFile_buf,        /* FileInformation */
 474                         sizeof(QueryFile_buf)   /* Length */
 475                                         -sizeof(*FileAllInformationStruct->NameInformation.FileName),   /* reserve space for 0-terminator */
 476                         FileAllInformation);    /* FileInformationClass; =>FILE_ALL_INFORMATION */
 477         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 478                 return errvfsresult;
 479         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 480
 481         /* process gathered info */
 482         errvfsresult=FileAllInformationStruct_to_GnomeVFSFileInfo(file_info,FileAllInformationStruct,
 483                         &file_IoStatusBlock);
 484         g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 485
 486         return GNOME_VFS_OK;
 487 }
 488
 489
 490 GnomeVFSResult captive_file_file_info_set(CaptiveFileObject *captive_file_object,
 491     const GnomeVFSFileInfo *info,GnomeVFSSetFileInfoMask mask)
 492 {
 493         g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 494         g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 495         g_return_val_if_fail(info!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 496
 497         if (mask & GNOME_VFS_SET_FILE_INFO_NAME) {
 498 gchar *name_dirname,*name_basename;
 499 UNICODE_STRING *name_UnicodeString;
 500 FILE_RENAME_INFORMATION *FileRenameInformation_structp;
 501 gsize FileRenameInformation_struct_len;
 502 IO_STATUS_BLOCK file_IoStatusBlock;
 503 NTSTATUS err;
 504 GnomeVFSResult errvfsresult;
 505
 506                 /* non-existing dirname assertion */
 507                 name_dirname=g_path_get_dirname(info->name);
 508                 if (*name_dirname) {
 509                         g_assert_not_reached();
 510                         errvfsresult=GNOME_VFS_ERROR_BAD_PARAMETERS;
 511                         goto err;
 512                         }
 513
 514                 /* fully-matching basename assertion */
 515                 name_basename=g_path_get_basename(info->name);
 516                 if (strcmp(name_basename,info->name)) {
 517                         g_assert_not_reached();
 518                         errvfsresult=GNOME_VFS_ERROR_BAD_PARAMETERS;
 519                         goto err_free_name_dirname;
 520                         }
 521
 522                 name_UnicodeString=captive_utf8_to_UnicodeString_alloca(info->name);
 523                 FileRenameInformation_struct_len=sizeof(*FileRenameInformation_structp)
 524                                 +name_UnicodeString->MaximumLength;     /* ==Length+(0-terminator); is the terminator needed? */
 525
 526                 FileRenameInformation_structp=g_alloca(FileRenameInformation_struct_len);
 527                 FileRenameInformation_structp->Replace=FALSE;
 528                 FileRenameInformation_structp->RootDir=NULL;    /* we do 'simple rename' here */
 529                 FileRenameInformation_structp->FileNameLength=name_UnicodeString->Length;
 530                 memcpy(FileRenameInformation_structp->FileName,name_UnicodeString->Buffer,
 531                                 name_UnicodeString->MaximumLength);     /* ==Length+(0-terminator); is the terminator needed? */
 532
 533                 err=NtSetInformationFile(
 534                                 captive_file_object->file_Handle,       /* FileHandle */
 535                                 &file_IoStatusBlock,    /* IoStatusBlock */
 536                                 FileRenameInformation_structp,  /* FileInformation */
 537                                 FileRenameInformation_struct_len,       /* Length */
 538                                 FileRenameInformation); /* FileInformationClass */
 539                 if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err))) {
 540                         g_assert_not_reached();
 541                         errvfsresult=GNOME_VFS_ERROR_GENERIC;
 542                         goto err_free_name_basename;
 543                         }
 544
 545                 errvfsresult=GNOME_VFS_OK;
 546
 547 err_free_name_basename:
 548                 g_free(name_basename);
 549 err_free_name_dirname:
 550                 g_free(name_dirname);
 551 err:
 552
 553                 if (errvfsresult!=GNOME_VFS_OK)
 554                         return errvfsresult;
 555                 }
 556
 557         if (mask & (GNOME_VFS_SET_FILE_INFO_PERMISSIONS | GNOME_VFS_SET_FILE_INFO_TIME)) {
 558 char FileBasicInformation_buf[sizeof(FILE_BASIC_INFORMATION)+4];
 559 FILE_BASIC_INFORMATION *FileBasicInformationp=(FILE_BASIC_INFORMATION *)FileBasicInformation_buf;
 560 IO_STATUS_BLOCK file_IoStatusBlock;
 561 NTSTATUS err;
 562
 563                 /* FIXME: Everywhere is is the declaration with 4xLARGE_INTEGER+1xULONG==36 bytes
 564                  * but the precompiled ext2fsd.sys wants 40 bytes - why?
 565                  */
 566                 g_assert(sizeof(FILE_BASIC_INFORMATION)==36);
 567                 g_assert(sizeof(FileBasicInformation_buf)==40);
 568                 err=NtQueryInformationFile(
 569                                 captive_file_object->file_Handle,       /* FileHandle */
 570                                 &file_IoStatusBlock,    /* IoStatusBlock */
 571                                 FileBasicInformation_buf,       /* FileInformation */
 572                                 sizeof(FileBasicInformation_buf),       /* Length */
 573                                 FileBasicInformation);  /* FileInformationClass */
 574                 g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 575
 576                 if (mask & GNOME_VFS_SET_FILE_INFO_PERMISSIONS) {
 577                         FileBasicInformationp->FileAttributes&=~FILE_ATTRIBUTE_READONLY;
 578                         g_assert(info->valid_fields & GNOME_VFS_FILE_INFO_FIELDS_PERMISSIONS);
 579                         if (!(info->permissions&0200))
 580                                 FileBasicInformationp->FileAttributes|=FILE_ATTRIBUTE_READONLY;
 581                         }
 582
 583                 if (mask & GNOME_VFS_SET_FILE_INFO_TIME) {
 584                         g_assert(info->valid_fields & (0
 585                                         | GNOME_VFS_FILE_INFO_FIELDS_ATIME
 586                                         | GNOME_VFS_FILE_INFO_FIELDS_MTIME
 587                                         | GNOME_VFS_FILE_INFO_FIELDS_CTIME));
 588                         if (info->valid_fields&GNOME_VFS_FILE_INFO_FIELDS_ATIME) {
 589                                 RtlSecondsSince1970ToTime(
 590                                                 info->atime,    /* SecondsSince1970 */
 591                                                 &FileBasicInformationp->LastAccessTime);        /* Time */
 592                                 }
 593                         if (info->valid_fields&GNOME_VFS_FILE_INFO_FIELDS_MTIME) {
 594                                 RtlSecondsSince1970ToTime(
 595                                                 info->mtime,    /* SecondsSince1970 */
 596                                                 &FileBasicInformationp->LastWriteTime); /* Time */
 597                                 FileBasicInformationp->ChangeTime=FileBasicInformationp->LastWriteTime;
 598                                 }
 599                         if (info->valid_fields&GNOME_VFS_FILE_INFO_FIELDS_CTIME) {
 600                                 RtlSecondsSince1970ToTime(
 601                                                 info->ctime,    /* SecondsSince1970 */
 602                                                 &FileBasicInformationp->CreationTime);  /* Time */
 603                                 }
 604                         }
 605
 606                 err=NtSetInformationFile(
 607                                 captive_file_object->file_Handle,       /* FileHandle */
 608                                 &file_IoStatusBlock,    /* IoStatusBlock */
 609                                 FileBasicInformation_buf,       /* FileInformation */
 610                                 sizeof(FileBasicInformation_buf),       /* Length */
 611                                 FileBasicInformation);  /* FileInformationClass */
 612                 g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 613                 }
 614
 615         if (mask & GNOME_VFS_SET_FILE_INFO_OWNER) {
 616                 /* FIXME: g_assert(info->valid_fields & ???); */
 617                 /* owner ignored for W32 */
 618                 }
 619
 620         return GNOME_VFS_OK;
 621 }
 622
 623
 624 GnomeVFSResult captive_file_truncate(CaptiveFileObject *captive_file_object,GnomeVFSFileSize file_size)
 625 {
 626 NTSTATUS err;
 627 FILE_END_OF_FILE_INFORMATION FileEndOfFileInformation_struct;
 628 IO_STATUS_BLOCK file_IoStatusBlock;
 629 GnomeVFSResult errvfsresult;
 630
 631         g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 632         g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 633
 634         FileEndOfFileInformation_struct.EndOfFile.QuadPart=file_size;
 635
 636         err=NtSetInformationFile(
 637                         captive_file_object->file_Handle,       /* FileHandle */
 638                         &file_IoStatusBlock,    /* IoStatusBlock */
 639                         &FileEndOfFileInformation_struct,       /* FileInformation */
 640                         sizeof(FileEndOfFileInformation_struct),        /* Length */
 641                         FileEndOfFileInformation);      /* FileInformationClass */
 642         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 643                 return errvfsresult;
 644         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 645
 646         return GNOME_VFS_OK;
 647 }
 648
 649
 650 GnomeVFSResult captive_file_move(CaptiveFileObject *captive_file_object_old,const gchar *pathname_new,gboolean force_replace)
 651 {
 652 NTSTATUS err;
 653 FILE_RENAME_INFORMATION FileRenameInformation_struct;
 654 IO_STATUS_BLOCK file_IoStatusBlock;
 655 GnomeVFSResult errvfsresult;
 656 gchar *pathname_new_dirname,*pathname_new_basename;
 657 CaptiveDirectoryObject *captive_target_directory_object;
 658 FILE_OBJECT *target_dir_FileObject;
 659 UNICODE_STRING *target_dir_FileObject_FileName_UnicodeString_local;
 660 BOOLEAN errboolean;
 661
 662         g_return_val_if_fail(captive_file_object_old!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 663         g_return_val_if_fail(captive_file_object_old->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 664         g_return_val_if_fail(pathname_new!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 665
 666         pathname_new_dirname=g_path_get_dirname(pathname_new);
 667         pathname_new_basename=g_path_get_basename(pathname_new);
 668
 669         errvfsresult=captive_directory_new_open(&captive_target_directory_object,pathname_new_dirname);
 670         if (errvfsresult!=GNOME_VFS_OK)
 671                 goto err_free_pathnames;
 672
 673         err=ObReferenceObjectByHandle(
 674                         captive_target_directory_object->dir_Handle,    /* Handle */
 675                         (FILE_ADD_FILE | FILE_ADD_SUBDIRECTORY),        /* DesiredAccess */
 676                         IoFileObjectType,       /* ObjectType */
 677                         KernelMode,     /* AccessMode */
 678                         (PVOID *)&target_dir_FileObject,        /* Object */
 679                         NULL);  /* HandleInfo */
 680         if (!NT_SUCCESS(err)) {
 681                 g_assert_not_reached();
 682                 errvfsresult=GNOME_VFS_ERROR_GENERIC;
 683                 goto err_close_captive_target_directory_object;
 684                 }
 685
 686         /* Supply only the 'basename' to 'target_dir_FileObject->FileName'
 687          * as the directory is fully determined by its other attributes.
 688          */
 689         target_dir_FileObject_FileName_UnicodeString_local=captive_utf8_to_UnicodeString_alloca(pathname_new_basename);
 690         errboolean=RtlCreateUnicodeString(&target_dir_FileObject->FileName,
 691                         target_dir_FileObject_FileName_UnicodeString_local->Buffer);
 692         g_assert(errboolean==TRUE);
 693
 694         ObDereferenceObject(target_dir_FileObject);
 695
 696         FileRenameInformation_struct.Replace=force_replace;
 697         FileRenameInformation_struct.RootDir=captive_target_directory_object->dir_Handle;       /* ->'target_dir_FileObject' */
 698         FileRenameInformation_struct.FileNameLength=0;  /* provided by 'FileRenameInformation_struct.RootDir' */
 699
 700         err=NtSetInformationFile(
 701                         captive_file_object_old->file_Handle,   /* FileHandle */
 702                         &file_IoStatusBlock,    /* IoStatusBlock */
 703                         &FileRenameInformation_struct,  /* FileInformation */
 704                         sizeof(FileRenameInformation_struct),   /* Length */
 705                         FileRenameInformation); /* FileInformationClass */
 706         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err))) {
 707                 g_assert_not_reached();
 708                 errvfsresult=GNOME_VFS_ERROR_GENERIC;
 709                 }
 710
 711         /* PASSTHRU */
 712
 713 err_close_captive_target_directory_object:
 714         g_object_unref(captive_target_directory_object);
 715 err_free_pathnames:
 716         g_free(pathname_new_dirname);
 717         g_free(pathname_new_basename);
 718
 719         return errvfsresult;
 720 }