484 changes: 351 additions & 133 deletions src/operations.cpp
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102 changes: 91 additions & 11 deletions src/windows_tools.hpp
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Expand Up @@ -85,6 +85,18 @@ inline bool is_reparse_point_tag_a_symlink(ULONG reparse_point_tag)

#if !defined(UNDER_CE)

//! Platform-specific parameters for directory iterator construction
struct directory_iterator_params
{
//! Handle of the directory to iterate over. If not \c INVALID_HANDLE_VALUE, the directory path is ignored.
HANDLE use_handle;
/*!
* If \c use_handle is not \c INVALID_HANDLE_VALUE, specifies whether the directory iterator should close the handle upon destruction.
* If \c false, the handle must remain valid for the lifetime of the iterator.
*/
bool close_handle;
};

//! IO_STATUS_BLOCK definition from Windows SDK.
struct io_status_block
{
Expand All @@ -104,6 +116,69 @@ struct unicode_string
PWSTR Buffer;
};

//! OBJECT_ATTRIBUTES definition from Windows SDK
struct object_attributes
{
ULONG Length;
HANDLE RootDirectory;
unicode_string* ObjectName;
ULONG Attributes;
PVOID SecurityDescriptor;
PVOID SecurityQualityOfService;
};

#ifndef OBJ_CASE_INSENSITIVE
#define OBJ_CASE_INSENSITIVE 0x00000040
#endif
#ifndef OBJ_DONT_REPARSE
#define OBJ_DONT_REPARSE 0x00001000
#endif

#ifndef FILE_SUPERSEDE
#define FILE_SUPERSEDE 0x00000000
#endif
#ifndef FILE_OPEN
#define FILE_OPEN 0x00000001
#endif
#ifndef FILE_CREATE
#define FILE_CREATE 0x00000002
#endif
#ifndef FILE_OPEN_IF
#define FILE_OPEN_IF 0x00000003
#endif
#ifndef FILE_OVERWRITE
#define FILE_OVERWRITE 0x00000004
#endif
#ifndef FILE_OVERWRITE_IF
#define FILE_OVERWRITE_IF 0x00000005
#endif

#ifndef FILE_DIRECTORY_FILE
#define FILE_DIRECTORY_FILE 0x00000001
#endif
#ifndef FILE_OPEN_FOR_BACKUP_INTENT
#define FILE_OPEN_FOR_BACKUP_INTENT 0x00004000
#endif
#ifndef FILE_OPEN_REPARSE_POINT
#define FILE_OPEN_REPARSE_POINT 0x00200000
#endif

//! NtCreateFile signature. Available since Windows 2000 (probably).
typedef boost::winapi::NTSTATUS_ (NTAPI NtCreateFile_t)(
/*out*/ PHANDLE FileHandle,
/*in*/ ACCESS_MASK DesiredAccess,
/*in*/ object_attributes* ObjectAttributes,
/*out*/ io_status_block* IoStatusBlock,
/*in, optional*/ PLARGE_INTEGER AllocationSize,
/*in*/ ULONG FileAttributes,
/*in*/ ULONG ShareAccess,
/*in*/ ULONG CreateDisposition,
/*in*/ ULONG CreateOptions,
/*in, optional*/ PVOID EaBuffer,
/*in*/ ULONG EaLength);

extern NtCreateFile_t* nt_create_file_api;

//! PIO_APC_ROUTINE definition from Windows SDK
typedef VOID (NTAPI* pio_apc_routine) (PVOID ApcContext, io_status_block* IoStatusBlock, ULONG Reserved);

Expand All @@ -115,17 +190,17 @@ enum file_information_class

//! NtQueryDirectoryFile signature. Available since Windows NT 4.0 (probably).
typedef boost::winapi::NTSTATUS_ (NTAPI NtQueryDirectoryFile_t)(
/*in*/ HANDLE FileHandle,
/*in, optional*/ HANDLE Event,
/*in, optional*/ pio_apc_routine ApcRoutine,
/*in, optional*/ PVOID ApcContext,
/*out*/ io_status_block* IoStatusBlock,
/*out*/ PVOID FileInformation,
/*in*/ ULONG Length,
/*in*/ file_information_class FileInformationClass,
/*in*/ BOOLEAN ReturnSingleEntry,
/*in, optional*/ unicode_string* FileName,
/*in*/ BOOLEAN RestartScan);
/*in*/ HANDLE FileHandle,
/*in, optional*/ HANDLE Event,
/*in, optional*/ pio_apc_routine ApcRoutine,
/*in, optional*/ PVOID ApcContext,
/*out*/ io_status_block* IoStatusBlock,
/*out*/ PVOID FileInformation,
/*in*/ ULONG Length,
/*in*/ file_information_class FileInformationClass,
/*in*/ BOOLEAN ReturnSingleEntry,
/*in, optional*/ unicode_string* FileName,
/*in*/ BOOLEAN RestartScan);

extern NtQueryDirectoryFile_t* nt_query_directory_file_api;

Expand Down Expand Up @@ -184,6 +259,11 @@ inline HANDLE create_file_handle(boost::filesystem::path const& p, DWORD dwDesir
return ::CreateFileW(p.c_str(), dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile);
}

#if !defined(UNDER_CE)
//! Creates a file handle for a file relative to a previously opened base directory. The file path must be relative and in preferred format.
boost::winapi::NTSTATUS_ nt_create_file_handle_at(HANDLE& out, HANDLE basedir_handle, boost::filesystem::path const& p, ULONG FileAttributes, ACCESS_MASK DesiredAccess, ULONG ShareMode, ULONG CreateDisposition, ULONG CreateOptions);
#endif // !defined(UNDER_CE)

} // namespace detail
} // namespace filesystem
} // namespace boost
Expand Down