From 55bedf79bf57a3c4e5f1a21cdea10c844f2b8f0c Mon Sep 17 00:00:00 2001 From: short <> Date: Sat, 26 Apr 2003 10:43:19 +0000 Subject: [PATCH] Workarounded captive_file_file_info_get() compat. for ntfs.sys of NT-5.1sp1 --- src/libcaptive/client/file.c | 148 ++++++++++++++++++++++++++++++------------- 1 file changed, 104 insertions(+), 44 deletions(-) diff --git a/src/libcaptive/client/file.c b/src/libcaptive/client/file.c index 4a8df7b..f6a3d21 100644 --- a/src/libcaptive/client/file.c +++ b/src/libcaptive/client/file.c @@ -362,37 +362,48 @@ GnomeVFSResult errvfsresult; } -/* Use 'FileAllInformationStruct' identifier instead of the logical 'FileAllInformation' - * to prevent override of enum member 'FileAllInformation' +/* Use 'FileNameInformationStruct' identifier instead of the logical 'FileNameInformation' + * to prevent override of enum member 'FileNameInformation' */ -static GnomeVFSResult FileAllInformationStruct_to_GnomeVFSFileInfo(GnomeVFSFileInfo *file_info, - FILE_ALL_INFORMATION *FileAllInformationStruct,IO_STATUS_BLOCK *IoStatusBlock) +static GnomeVFSResult FileNameInformationStruct_to_GnomeVFSFileInfo(GnomeVFSFileInfo *file_info, + FILE_NAME_INFORMATION *FileNameInformationStruct) { UNICODE_STRING FileName_UnicodeString; -BOOLEAN errBOOLEAN; -ULONG tmp_ULONG; g_return_val_if_fail(file_info!=NULL,GNOME_VFS_ERROR_GENERIC); - g_return_val_if_fail(FileAllInformationStruct!=NULL,GNOME_VFS_ERROR_GENERIC); + g_return_val_if_fail(FileNameInformationStruct!=NULL,GNOME_VFS_ERROR_GENERIC); - g_return_val_if_fail(NT_SUCCESS(IoStatusBlock->Status),GNOME_VFS_ERROR_GENERIC); - - file_info->valid_fields=0; + FileName_UnicodeString.Length=FileNameInformationStruct->FileNameLength; + FileName_UnicodeString.MaximumLength=FileNameInformationStruct->FileNameLength + +sizeof(*FileNameInformationStruct->FileName); /* 0-terminator */ - FileName_UnicodeString.Length=FileAllInformationStruct->NameInformation.FileNameLength; - FileName_UnicodeString.MaximumLength=FileAllInformationStruct->NameInformation.FileNameLength - +sizeof(*FileAllInformationStruct->NameInformation.FileName); /* 0-terminator */ - g_assert((gpointer)(((char *)FileAllInformationStruct->NameInformation.FileName)+FileName_UnicodeString.Length) +#if 0 /* 'IoStatusBlock->Information' is sometimes weird, do not check it */ + g_assert((gpointer)(((char *)FileNameInformationStruct->FileName)+FileName_UnicodeString.Length) <=(gpointer)(((char *)FileAllInformationStruct)+IoStatusBlock->Information)); /* ensure we fit below '->IoStatusBlock->Information' at least without the 0-terminator */ - FileAllInformationStruct->NameInformation.FileName[FileAllInformationStruct->NameInformation.FileNameLength - /sizeof(*FileAllInformationStruct->NameInformation.FileName)]=0; /* 0-terminate it */ - FileName_UnicodeString.Buffer=FileAllInformationStruct->NameInformation.FileName; +#endif + + FileNameInformationStruct->FileName[FileNameInformationStruct->FileNameLength + /sizeof(*FileNameInformationStruct->FileName)]=0; /* 0-terminate it */ + FileName_UnicodeString.Buffer=FileNameInformationStruct->FileName; file_info->name=captive_UnicodeString_to_utf8_malloc(&FileName_UnicodeString); /* '->name' assumed for 'file_info->valid_fields' */ + return GNOME_VFS_OK; +} + + +/* Use 'FileBasicInformationStruct' identifier instead of the logical 'FileBasicInformation' + * to prevent override of enum member 'FileBasicInformation' + */ +static GnomeVFSResult FileBasicInformationStruct_to_GnomeVFSFileInfo(GnomeVFSFileInfo *file_info, + FILE_BASIC_INFORMATION *FileBasicInformationStruct) +{ +BOOLEAN errBOOLEAN; +ULONG tmp_ULONG; + /* FIXME: What is 'FILE_ATTRIBUTE_NORMAL'? */ - switch (FileAllInformationStruct->BasicInformation.FileAttributes & (0 + switch (FileBasicInformationStruct->FileAttributes & (0 | FILE_ATTRIBUTE_DIRECTORY | FILE_ATTRIBUTE_DEVICE)) { case 0: file_info->type=GNOME_VFS_FILE_TYPE_REGULAR; break; @@ -408,40 +419,31 @@ ULONG tmp_ULONG; file_info->permissions=GNOME_VFS_PERM_USER_READ; if (file_info->type==GNOME_VFS_FILE_TYPE_DIRECTORY) file_info->permissions|=GNOME_VFS_PERM_USER_EXEC; - if (!(FileAllInformationStruct->BasicInformation.FileAttributes & FILE_ATTRIBUTE_READONLY)) + if (!(FileBasicInformationStruct->FileAttributes & FILE_ATTRIBUTE_READONLY)) file_info->permissions|=GNOME_VFS_PERM_USER_WRITE; file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_PERMISSIONS; - file_info->size=FileAllInformationStruct->StandardInformation.EndOfFile.QuadPart; - file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_SIZE; - - file_info->block_count=FileAllInformationStruct->StandardInformation.AllocationSize.QuadPart/512; - file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_BLOCK_COUNT; - - file_info->flags=GNOME_VFS_FILE_FLAGS_LOCAL; - file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_FLAGS; - - if (FileAllInformationStruct->BasicInformation.LastAccessTime.QuadPart) { /* it may be 0 if not set */ - errBOOLEAN=RtlTimeToSecondsSince1970(&FileAllInformationStruct->BasicInformation.LastAccessTime,&tmp_ULONG); + if (FileBasicInformationStruct->LastAccessTime.QuadPart) { /* it may be 0 if not set */ + errBOOLEAN=RtlTimeToSecondsSince1970(&FileBasicInformationStruct->LastAccessTime,&tmp_ULONG); g_assert(errBOOLEAN==TRUE); file_info->atime=tmp_ULONG; file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_ATIME; } /* it may be 0 if not set */ - if (FileAllInformationStruct->BasicInformation.LastWriteTime.QuadPart || FileAllInformationStruct->BasicInformation.ChangeTime.QuadPart) { + if (FileBasicInformationStruct->LastWriteTime.QuadPart || FileBasicInformationStruct->ChangeTime.QuadPart) { errBOOLEAN=RtlTimeToSecondsSince1970( /* take the more recent (==bigger) time: */ - (FileAllInformationStruct->BasicInformation.LastWriteTime.QuadPart > FileAllInformationStruct->BasicInformation.ChangeTime.QuadPart - ? &FileAllInformationStruct->BasicInformation.LastWriteTime : &FileAllInformationStruct->BasicInformation.ChangeTime), + (FileBasicInformationStruct->LastWriteTime.QuadPart > FileBasicInformationStruct->ChangeTime.QuadPart + ? &FileBasicInformationStruct->LastWriteTime : &FileBasicInformationStruct->ChangeTime), &tmp_ULONG); g_assert(errBOOLEAN==TRUE); file_info->mtime=tmp_ULONG; file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_MTIME; } - if (FileAllInformationStruct->BasicInformation.CreationTime.QuadPart) { /* it may be 0 if not set */ - errBOOLEAN=RtlTimeToSecondsSince1970(&FileAllInformationStruct->BasicInformation.CreationTime,&tmp_ULONG); + if (FileBasicInformationStruct->CreationTime.QuadPart) { /* it may be 0 if not set */ + errBOOLEAN=RtlTimeToSecondsSince1970(&FileBasicInformationStruct->CreationTime,&tmp_ULONG); g_assert(errBOOLEAN==TRUE); file_info->ctime=tmp_ULONG; file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_CTIME; @@ -451,36 +453,93 @@ ULONG tmp_ULONG; } +/* Use 'FileStandardInformationStruct' identifier instead of the logical 'FileStandardInformation' + * to prevent override of enum member 'FileStandardInformation' + */ +static GnomeVFSResult FileStandardInformationStruct_to_GnomeVFSFileInfo(GnomeVFSFileInfo *file_info, + FILE_STANDARD_INFORMATION *FileStandardInformationStruct) +{ + file_info->size=FileStandardInformationStruct->EndOfFile.QuadPart; + file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_SIZE; + + file_info->block_count=FileStandardInformationStruct->AllocationSize.QuadPart/512; + file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_BLOCK_COUNT; + + return GNOME_VFS_OK; +} + + GnomeVFSResult captive_file_file_info_get(CaptiveFileObject *captive_file_object, GnomeVFSFileInfo *file_info) { NTSTATUS err; IO_STATUS_BLOCK file_IoStatusBlock; -FILE_ALL_INFORMATION *FileAllInformationStruct; +FILE_NAME_INFORMATION *FileNameInformationStruct; +FILE_BASIC_INFORMATION *FileBasicInformationStruct; +FILE_STANDARD_INFORMATION *FileStandardInformationStruct; GnomeVFSResult errvfsresult; -char QueryFile_buf[sizeof(FILE_ALL_INFORMATION) +char QueryFile_buf[sizeof(FILE_NAME_INFORMATION) +0x1000 /* max 'FileName' length, 255 should be enough */ * sizeof(WCHAR /* *FILE_ALL_INFORMATION.NameInformation.FileName */ )]; g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS); g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS); g_return_val_if_fail(file_info!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS); - /* query */ - FileAllInformationStruct=(void *)QueryFile_buf; + /* ntfs.sys of NT-5.1sp1 has *(FILE_BASIC_INFORMATION *)FILE_ALL_INFORMATION.BasicInformation + * size 0x28 although reactos includes and all the information says 0x24. + * fastfat.sys of NT-5.1sp1 also has the 'official' sizeof 0x24. + * It would be a bit of heuristic to correctly detect its expected sizeof. + */ + + file_info->valid_fields=0; + + file_info->flags=GNOME_VFS_FILE_FLAGS_LOCAL; + file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_FLAGS; + + /* query NameInformation */ + FileNameInformationStruct=(void *)QueryFile_buf; err=NtQueryInformationFile( captive_file_object->file_Handle, /* FileHandle */ &file_IoStatusBlock, /* IoStatusBlock */ (gpointer)QueryFile_buf, /* FileInformation */ sizeof(QueryFile_buf) /* Length */ - -sizeof(*FileAllInformationStruct->NameInformation.FileName), /* reserve space for 0-terminator */ - FileAllInformation); /* FileInformationClass; =>FILE_ALL_INFORMATION */ + -sizeof(*FileNameInformationStruct->FileName), /* reserve space for a possible 0-terminator */ + FileNameInformation); /* FileInformationClass; =>FILE_NAME_INFORMATION */ if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err))) return errvfsresult; + g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC); g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC); + errvfsresult=FileNameInformationStruct_to_GnomeVFSFileInfo(file_info,FileNameInformationStruct); + g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult); - /* process gathered info */ - errvfsresult=FileAllInformationStruct_to_GnomeVFSFileInfo(file_info,FileAllInformationStruct, - &file_IoStatusBlock); + /* query BasicInformation */ + FileBasicInformationStruct=(void *)QueryFile_buf; + err=NtQueryInformationFile( + captive_file_object->file_Handle, /* FileHandle */ + &file_IoStatusBlock, /* IoStatusBlock */ + (gpointer)QueryFile_buf, /* FileInformation */ + sizeof(QueryFile_buf), /* Length */ + FileBasicInformation); /* FileInformationClass; =>FILE_BASIC_INFORMATION */ + if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err))) + return errvfsresult; + g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC); + g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC); + errvfsresult=FileBasicInformationStruct_to_GnomeVFSFileInfo(file_info,FileBasicInformationStruct); + g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult); + + /* query StandardInformation */ + FileStandardInformationStruct=(void *)QueryFile_buf; + err=NtQueryInformationFile( + captive_file_object->file_Handle, /* FileHandle */ + &file_IoStatusBlock, /* IoStatusBlock */ + (gpointer)QueryFile_buf, /* FileInformation */ + sizeof(QueryFile_buf), /* Length */ + FileStandardInformation); /* FileInformationClass; =>FILE_STANDARD_INFORMATION */ + if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err))) + return errvfsresult; + g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC); + g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC); + errvfsresult=FileStandardInformationStruct_to_GnomeVFSFileInfo(file_info,FileStandardInformationStruct); g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult); return GNOME_VFS_OK; @@ -558,6 +617,7 @@ NTSTATUS err; /* FIXME: Everywhere is is the declaration with 4xLARGE_INTEGER+1xULONG==36 bytes * but the precompiled ext2fsd.sys wants 40 bytes - why? + * The same case applies to ntfs.sys of NT-5.1sp1. */ g_assert(sizeof(FILE_BASIC_INFORMATION)==36); g_assert(sizeof(FileBasicInformation_buf)==40); -- 1.8.3.1