reactos/modules/rosapps/applications/explorer-old/shell/ntobjfs.cpp

395 lines
11 KiB
C++

/*
* Copyright 2004, 2005 Martin Fuchs
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
//
// Explorer clone
//
// ntobjfs.cpp
//
// Martin Fuchs, 31.01.2004
//
#include <precomp.h>
#include "ntobjfs.h"
//#include "winfs.h"
#include "regfs.h"
#define CONSTRUCT_NTDLLFCT(x) x(TEXT("NTDLL"), #x)
typedef DWORD (__stdcall* NTOBJECTOPENFUNCTIONS)(HANDLE*, DWORD, OpenStruct*);
struct NTDLL {
NTDLL()
: CONSTRUCT_NTDLLFCT(RtlInitAnsiString),
CONSTRUCT_NTDLLFCT(RtlInitUnicodeString),
CONSTRUCT_NTDLLFCT(RtlFreeAnsiString),
CONSTRUCT_NTDLLFCT(RtlFreeUnicodeString),
CONSTRUCT_NTDLLFCT(RtlAnsiStringToUnicodeString),
CONSTRUCT_NTDLLFCT(RtlUnicodeStringToAnsiString),
CONSTRUCT_NTDLLFCT(NtOpenDirectoryObject),
CONSTRUCT_NTDLLFCT(NtQueryDirectoryObject),
CONSTRUCT_NTDLLFCT(NtOpenFile),
CONSTRUCT_NTDLLFCT(NtOpenSymbolicLinkObject),
CONSTRUCT_NTDLLFCT(NtQuerySymbolicLinkObject),
CONSTRUCT_NTDLLFCT(NtQueryObject),
CONSTRUCT_NTDLLFCT(NtOpenMutant),
CONSTRUCT_NTDLLFCT(NtOpenSection),
CONSTRUCT_NTDLLFCT(NtOpenEvent),
CONSTRUCT_NTDLLFCT(NtOpenEventPair),
CONSTRUCT_NTDLLFCT(NtOpenIoCompletion),
CONSTRUCT_NTDLLFCT(NtOpenSemaphore),
CONSTRUCT_NTDLLFCT(NtOpenTimer),
CONSTRUCT_NTDLLFCT(NtOpenKey),
CONSTRUCT_NTDLLFCT(NtClose),
CONSTRUCT_NTDLLFCT(NtOpenProcess),
CONSTRUCT_NTDLLFCT(NtOpenThread)
{
NTOBJECTOPENFUNCTIONS* p = _ObjectOpenFunctions;
*p++ = *NtOpenDirectoryObject;
*p++ = *NtOpenSymbolicLinkObject;
*p++ = *NtOpenMutant;
*p++ = *NtOpenSection;
*p++ = *NtOpenEvent;
*p++ = *NtOpenSemaphore;
*p++ = *NtOpenTimer;
*p++ = *NtOpenKey;
*p++ = *NtOpenEventPair;
*p++ = *NtOpenIoCompletion;
*p++ = 0/*Device Object*/;
*p++ = 0/*NtOpenFile*/;
*p++ = 0/*CONTROLLER_OBJECT*/;
*p++ = 0/*PROFILE_OBJECT*/;
*p++ = 0/*TYPE_OBJECT*/;
*p++ = 0/*DESKTOP_OBJECT*/;
*p++ = 0/*WINDOWSTATION_OBJECT*/;
*p++ = 0/*DRIVER_OBJECT*/;
*p++ = 0/*TOKEN_OBJECT*/;
*p++ = 0/*PROCESS_OBJECT*/;
*p++ = 0/*THREAD_OBJECT*/;
*p++ = 0/*ADAPTER_OBJECT*/;
*p++ = 0/*PORT_OBJECT*/;
}
NTOBJECTOPENFUNCTIONS _ObjectOpenFunctions[23];
static const LPCWSTR s_ObjectTypes[];
DynamicFct<void (__stdcall*)(RtlAnsiString*, LPCSTR)> RtlInitAnsiString;
DynamicFct<void (__stdcall*)(RtlUnicodeString*, LPCWSTR)> RtlInitUnicodeString;
DynamicFct<DWORD (__stdcall*)(RtlAnsiString*)> RtlFreeAnsiString;
DynamicFct<DWORD (__stdcall*)(RtlUnicodeString*)> RtlFreeUnicodeString;
DynamicFct<DWORD (__stdcall*)(RtlUnicodeString*, const RtlAnsiString*, BOOL)> RtlAnsiStringToUnicodeString;
DynamicFct<DWORD (__stdcall*)(RtlAnsiString*, const RtlUnicodeString*, BOOL)> RtlUnicodeStringToAnsiString;
DynamicFct<DWORD (__stdcall*)(HANDLE*, DWORD, OpenStruct*)> NtOpenDirectoryObject;
DynamicFct<DWORD (__stdcall*)(HANDLE, NtObjectInfo*, DWORD size, BOOL, BOOL, void*, void*)> NtQueryDirectoryObject;
DynamicFct<DWORD (__stdcall*)(HANDLE*, DWORD, void*, DWORD*, DWORD, OpenStruct*)> NtOpenFile;
DynamicFct<DWORD (__stdcall*)(HANDLE*, DWORD, OpenStruct*)> NtOpenSymbolicLinkObject;
DynamicFct<DWORD (__stdcall*)(HANDLE, RtlUnicodeString*, DWORD*)> NtQuerySymbolicLinkObject;
DynamicFct<DWORD (__stdcall*)(HANDLE, DWORD, NtObject*, DWORD size, DWORD* read)> NtQueryObject;
DynamicFct<DWORD (__stdcall*)(HANDLE*, DWORD, OpenStruct*)> NtOpenMutant;
DynamicFct<DWORD (__stdcall*)(HANDLE*, DWORD, OpenStruct*)> NtOpenSection;
DynamicFct<DWORD (__stdcall*)(HANDLE*, DWORD, OpenStruct*)> NtOpenEvent;
DynamicFct<DWORD (__stdcall*)(HANDLE*, DWORD, OpenStruct*)> NtOpenEventPair;
DynamicFct<DWORD (__stdcall*)(HANDLE*, DWORD, OpenStruct*)> NtOpenIoCompletion;
DynamicFct<DWORD (__stdcall*)(HANDLE*, DWORD, OpenStruct*)> NtOpenSemaphore;
DynamicFct<DWORD (__stdcall*)(HANDLE*, DWORD, OpenStruct*)> NtOpenTimer;
DynamicFct<DWORD (__stdcall*)(HANDLE*, DWORD, OpenStruct*)> NtOpenKey;
DynamicFct<DWORD (__stdcall*)(HANDLE)> NtClose;
DynamicFct<DWORD (__stdcall*)(HANDLE*, DWORD, OpenStruct*)> NtOpenProcess;
DynamicFct<DWORD (__stdcall*)(HANDLE*, DWORD, OpenStruct*)> NtOpenThread;
};
const LPCWSTR NTDLL::s_ObjectTypes[] = {
L"Directory", L"SymbolicLink",
L"Mutant", L"Section", L"Event", L"Semaphore",
L"Timer", L"Key", L"EventPair", L"IoCompletion",
L"Device", L"File", L"Controller", L"Profile",
L"Type", L"Desktop", L"WindowStatiom", L"Driver",
L"Token", L"Process", L"Thread", L"Adapter", L"Port",
0
};
NTDLL* g_NTDLL = NULL;
struct UnicodeString : public RtlUnicodeString {
UnicodeString(LPCWSTR str)
{
(*g_NTDLL->RtlInitUnicodeString)(this, str);
}
UnicodeString(size_t len, LPWSTR buffer)
{
alloc_len = len;
string_ptr = buffer;
}
operator LPCWSTR() const {return string_ptr;}
};
static DWORD NtOpenObject(OBJECT_TYPE type, HANDLE* phandle, DWORD access, LPCWSTR path/*, BOOL xflag=FALSE*/)
{
UnicodeString ustr(path);
OpenStruct open_struct = {sizeof(OpenStruct), 0x00, &ustr, 0x40};
if (type==DIRECTORY_OBJECT || type==SYMBOLICLINK_OBJECT)
access |= FILE_LIST_DIRECTORY;
/* if (xflag)
access |= GENERIC_READ; */
DWORD ioStatusBlock[2]; // IO_STATUS_BLOCK
if (type>=DIRECTORY_OBJECT && type<=IOCOMPLETITION_OBJECT)
return g_NTDLL->_ObjectOpenFunctions[type](phandle, access|STANDARD_RIGHTS_READ, &open_struct);
else if (type == FILE_OBJECT)
return (*g_NTDLL->NtOpenFile)(phandle, access, &open_struct, ioStatusBlock, FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE, 0/*OpenOptions*/);
else
return ERROR_INVALID_FUNCTION;
}
void NtObjDirectory::read_directory(int scan_flags)
{
CONTEXT("NtObjDirectory::read_directory()");
if (!g_NTDLL)
g_NTDLL = new NTDLL();
Entry* first_entry = NULL;
int level = _level + 1;
LPCTSTR path = (LPCTSTR)_path;
TCHAR buffer[MAX_PATH], *p=buffer;
#ifndef UNICODE
WCHAR wbuffer[MAX_PATH], *w=wbuffer;
#endif
do {
*p++ = *path;
#ifndef UNICODE
*w++ = *path;
#endif
} while(*path++);
--p;
#ifndef UNICODE
--w;
#endif
DWORD idx;
HANDLE dir_handle;
#ifdef UNICODE
if (NtOpenObject(_type, &dir_handle, 0, buffer))
#else
if (NtOpenObject(_type, &dir_handle, 0, wbuffer))
#endif
return;
#ifdef UNICODE
if (p[-1] != '\\')
*p++ = '\\';
#else
if (w[-1] != '\\')
*w++ = '\\';
#endif
NtObjectInfo* info = (NtObjectInfo*)alloca(2048);
if (!(*g_NTDLL->NtQueryDirectoryObject)(dir_handle, info, 2048, TRUE, TRUE, &idx, NULL)) {
WIN32_FIND_DATA w32fd;
Entry* last = NULL;
Entry* entry;
do {
memset(&w32fd, 0, sizeof(WIN32_FIND_DATA));
#ifdef UNICODE
if (info->name.string_ptr) {
info->name.string_ptr[info->name.string_len / sizeof(WCHAR)] = 0;
} else {
TCHAR empty_string_ptr[] = _T("");
info->name.string_ptr = empty_string_ptr;
}
if (info->type.string_ptr) {
info->type.string_ptr[info->type.string_len / sizeof(WCHAR)] = 0;
} else {
TCHAR empty_string_ptr[] = _T("");
info->type.string_ptr = empty_string_ptr;
}
lstrcpynW(p, info->name.string_ptr, COUNTOF(buffer));
#else
WideCharToMultiByte(CP_ACP, 0, info->name.string_ptr, info->name.string_len, p, COUNTOF(buffer), 0, 0);
#endif
lstrcpyn(w32fd.cFileName, p, sizeof(w32fd.cFileName) / sizeof(0[w32fd.cFileName]));
const LPCWSTR* tname = NTDLL::s_ObjectTypes;
OBJECT_TYPE type = UNKNOWN_OBJECT_TYPE;
for(; *tname; tname++)
if (!wcsncmp(info->type.string_ptr, *tname, 32))
{type=OBJECT_TYPE(tname-NTDLL::s_ObjectTypes); break;}
if (type == DIRECTORY_OBJECT) {
w32fd.dwFileAttributes |= FILE_ATTRIBUTE_DIRECTORY;
entry = new NtObjDirectory(this, buffer);
}
else if (type == SYMBOLICLINK_OBJECT) {
w32fd.dwFileAttributes |= ATTRIBUTE_SYMBOLIC_LINK;
entry = NULL;
#ifndef _NO_WIN_FS
if (*w32fd.cFileName>='A' &&*w32fd.cFileName<='Z' && w32fd.cFileName[1]==':')
if (!_tcsncmp(buffer,TEXT("\\??\\"),4) || // NT4
!_tcsncmp(buffer,TEXT("\\GLOBAL??"),9)) { // XP
w32fd.dwFileAttributes |= FILE_ATTRIBUTE_DIRECTORY;
entry = new WinDirectory(this, w32fd.cFileName);
}
#endif
if (!entry)
entry = new NtObjDirectory(this, buffer);
}
else if (type == KEY_OBJECT) {
w32fd.dwFileAttributes |= FILE_ATTRIBUTE_DIRECTORY;
entry = new RegistryRoot(this, buffer);
}
else
entry = new NtObjEntry(this, type);
HANDLE handle;
#ifdef UNICODE
lstrcpyW(p, info->name.string_ptr);
if (!NtOpenObject(type, &handle, 0, buffer))
#else
lstrcpyW(w, info->name.string_ptr);
if (!NtOpenObject(type, &handle, 0, wbuffer))
#endif
{
NtObject object;
DWORD read;
if (!(*g_NTDLL->NtQueryObject)(handle, 0/*ObjectBasicInformation*/, &object, sizeof(NtObject), &read)) {
memcpy(&w32fd.ftCreationTime, &object.creation_time, sizeof(FILETIME));
memset(&entry->_bhfi, 0, sizeof(BY_HANDLE_FILE_INFORMATION));
entry->_bhfi.nNumberOfLinks = object.reference_count - 1;
entry->_bhfi_valid = true;
}
if (type == SYMBOLICLINK_OBJECT) {
WCHAR wbuffer[_MAX_PATH];
UnicodeString link(_MAX_PATH, wbuffer);
if (!(*g_NTDLL->NtQuerySymbolicLinkObject)(handle, &link, NULL)) {
int len = link.string_len/sizeof(WCHAR);
entry->_content = (LPTSTR) malloc((len+1)*sizeof(TCHAR));
#ifdef UNICODE
wcsncpy_s(entry->_content, len+1, link, len);
#else
U2nA(link, entry->_content, len);
#endif
entry->_content[len] = '\0';
}
}
(*g_NTDLL->NtClose)(handle);
}
memcpy(&entry->_data, &w32fd, sizeof(WIN32_FIND_DATA));
#ifdef UNICODE
entry->_type_name = _wcsdup(info->type.string_ptr);
#else
char type_name[32];
WideCharToMultiByte(CP_ACP, 0, info->type.string_ptr, info->type.string_len, type_name, 32, 0, 0);
entry->_type_name = _strdup(type_name);
#endif
if (!first_entry)
first_entry = entry;
if (last)
last->_next = entry;
entry->_level = level;
last = entry;
} while(!(*g_NTDLL->NtQueryDirectoryObject)(dir_handle, info, 2048, TRUE, FALSE, &idx, NULL));
last->_next = NULL;
}
(*g_NTDLL->NtClose)(dir_handle);
_down = first_entry;
_scanned = true;
}
Entry* NtObjDirectory::find_entry(const void* p)
{
LPCTSTR name = (LPCTSTR)p;
for(Entry*entry=_down; entry; entry=entry->_next) {
LPCTSTR p = name;
LPCTSTR q = entry->_data.cFileName;
do {
if (!*p || *p==TEXT('\\') || *p==TEXT('/'))
return entry;
} while(tolower(*p++) == tolower(*q++));
p = name;
q = entry->_data.cAlternateFileName;
do {
if (!*p || *p==TEXT('\\') || *p==TEXT('/'))
return entry;
} while(tolower(*p++) == tolower(*q++));
}
return NULL;
}
// get full path of specified directory entry
bool NtObjEntry::get_path(PTSTR path, size_t path_count) const
{
return get_path_base ( path, path_count, ET_NTOBJS );
}
BOOL NtObjEntry::launch_entry(HWND hwnd, UINT nCmdShow)
{
return FALSE;
}