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53 kB · 1675 lines
C++
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Copyright (c) Mark Harmstone 2016-17 * * This file is part of WinBtrfs. * * WinBtrfs is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public Licence as published by * the Free Software Foundation, either version 3 of the Licence, or * (at your option) any later version. * * WinBtrfs 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 Licence for more details. * * You should have received a copy of the GNU Lesser General Public Licence * along with WinBtrfs. If not, see <http://www.gnu.org/licenses/>. */
#define ISOLATION_AWARE_ENABLED 1#define STRSAFE_NO_DEPRECATE
#include "shellext.h"#ifndef __REACTOS__#include <windows.h>#include <strsafe.h>#include <winternl.h>#else#define WIN32_NO_STATUS#include <windef.h>#include <winbase.h>#include <strsafe.h>#include <ndk/iofuncs.h>#include <ndk/iotypes.h>#endif
#define NO_SHLWAPI_STRFCNS#include <shlwapi.h>#include <uxtheme.h>
#include "volpropsheet.h"#include "resource.h"#ifndef __REACTOS__#include "mountmgr.h"#else#include "mountmgr_local.h"#endif
#ifndef __REACTOS__static const NTSTATUS STATUS_OBJECT_NAME_NOT_FOUND = 0xC0000034;#endif
HRESULT __stdcall BtrfsVolPropSheet::QueryInterface(REFIID riid, void **ppObj) { if (riid == IID_IUnknown || riid == IID_IShellPropSheetExt) { *ppObj = static_cast<IShellPropSheetExt*>(this); AddRef(); return S_OK; } else if (riid == IID_IShellExtInit) { *ppObj = static_cast<IShellExtInit*>(this); AddRef(); return S_OK; }
*ppObj = nullptr; return E_NOINTERFACE;}
HRESULT __stdcall BtrfsVolPropSheet::Initialize(PCIDLIST_ABSOLUTE pidlFolder, IDataObject* pdtobj, HKEY hkeyProgID) { ULONG num_files; FORMATETC format = { CF_HDROP, nullptr, DVASPECT_CONTENT, -1, TYMED_HGLOBAL }; HDROP hdrop; WCHAR fnbuf[MAX_PATH];
if (pidlFolder) return E_FAIL;
if (!pdtobj) return E_FAIL;
stgm.tymed = TYMED_HGLOBAL;
if (FAILED(pdtobj->GetData(&format, &stgm))) return E_INVALIDARG;
stgm_set = true;
hdrop = (HDROP)GlobalLock(stgm.hGlobal);
if (!hdrop) { ReleaseStgMedium(&stgm); stgm_set = false; return E_INVALIDARG; }
num_files = DragQueryFileW((HDROP)stgm.hGlobal, 0xFFFFFFFF, nullptr, 0);
if (num_files > 1) { GlobalUnlock(hdrop); return E_FAIL; }
if (DragQueryFileW((HDROP)stgm.hGlobal, 0, fnbuf, sizeof(fnbuf) / sizeof(WCHAR))) { fn = fnbuf;
win_handle h = CreateFileW(fn.c_str(), FILE_TRAVERSE | FILE_READ_ATTRIBUTES, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, nullptr, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT, nullptr);
if (h != INVALID_HANDLE_VALUE) { NTSTATUS Status; IO_STATUS_BLOCK iosb; ULONG devsize, i;
i = 0; devsize = 1024;
devices = (btrfs_device*)malloc(devsize);
while (true) { Status = NtFsControlFile(h, nullptr, nullptr, nullptr, &iosb, FSCTL_BTRFS_GET_DEVICES, nullptr, 0, devices, devsize); if (Status == STATUS_BUFFER_OVERFLOW) { if (i < 8) { devsize += 1024;
free(devices); devices = (btrfs_device*)malloc(devsize);
i++; } else { GlobalUnlock(hdrop); return E_FAIL; } } else break; }
if (!NT_SUCCESS(Status)) { GlobalUnlock(hdrop); return E_FAIL; }
Status = NtFsControlFile(h, nullptr, nullptr, nullptr, &iosb, FSCTL_BTRFS_GET_UUID, nullptr, 0, &uuid, sizeof(BTRFS_UUID)); uuid_set = NT_SUCCESS(Status);
ignore = false; balance = new BtrfsBalance(fn); } else { GlobalUnlock(hdrop); return E_FAIL; } } else { GlobalUnlock(hdrop); return E_FAIL; }
GlobalUnlock(hdrop);
return S_OK;}
typedef struct { uint64_t dev_id; wstring name; uint64_t alloc; uint64_t size;} dev;
void BtrfsVolPropSheet::FormatUsage(HWND hwndDlg, wstring& s, btrfs_usage* usage) { uint8_t i, j; uint64_t num_devs, dev_size, dev_alloc, data_size, data_alloc, metadata_size, metadata_alloc; btrfs_device* bd; vector<dev> devs; btrfs_usage* bue; wstring t, u, v;
static const uint64_t types[] = { BLOCK_FLAG_DATA, BLOCK_FLAG_DATA | BLOCK_FLAG_METADATA, BLOCK_FLAG_METADATA, BLOCK_FLAG_SYSTEM }; static const ULONG typestrings[] = { IDS_USAGE_DATA, IDS_USAGE_MIXED, IDS_USAGE_METADATA, IDS_USAGE_SYSTEM }; static const uint64_t duptypes[] = { 0, BLOCK_FLAG_DUPLICATE, BLOCK_FLAG_RAID0, BLOCK_FLAG_RAID1, BLOCK_FLAG_RAID10, BLOCK_FLAG_RAID5, BLOCK_FLAG_RAID6, BLOCK_FLAG_RAID1C3, BLOCK_FLAG_RAID1C4 }; static const ULONG dupstrings[] = { IDS_SINGLE, IDS_DUP, IDS_RAID0, IDS_RAID1, IDS_RAID10, IDS_RAID5, IDS_RAID6, IDS_RAID1C3, IDS_RAID1C4 };
static const uint64_t raid_types = BLOCK_FLAG_DUPLICATE | BLOCK_FLAG_RAID0 | BLOCK_FLAG_RAID1 | BLOCK_FLAG_RAID10 | BLOCK_FLAG_RAID5 | BLOCK_FLAG_RAID6 | BLOCK_FLAG_RAID1C3 | BLOCK_FLAG_RAID1C4;
s = L"";
num_devs = 0; bd = devices;
while (true) { num_devs++;
if (bd->next_entry > 0) bd = (btrfs_device*)((uint8_t*)bd + bd->next_entry); else break; }
bd = devices;
dev_size = 0;
while (true) { dev d;
if (bd->missing) { if (!load_string(module, IDS_MISSING, d.name)) throw last_error(GetLastError()); } else if (bd->device_number == 0xffffffff) d.name = wstring(bd->name, bd->namelen / sizeof(WCHAR)); else if (bd->partition_number == 0) { if (!load_string(module, IDS_DISK_NUM, u)) throw last_error(GetLastError());
wstring_sprintf(d.name, u, bd->device_number); } else { if (!load_string(module, IDS_DISK_PART_NUM, u)) throw last_error(GetLastError());
wstring_sprintf(d.name, u, bd->device_number, bd->partition_number); }
d.dev_id = bd->dev_id; d.alloc = 0; d.size = bd->size;
devs.push_back(d);
dev_size += bd->size;
if (bd->next_entry > 0) bd = (btrfs_device*)((uint8_t*)bd + bd->next_entry); else break; }
dev_alloc = 0; data_size = data_alloc = 0; metadata_size = metadata_alloc = 0;
bue = usage; while (true) { for (uint64_t k = 0; k < bue->num_devices; k++) { dev_alloc += bue->devices[k].alloc;
if (bue->type & BLOCK_FLAG_DATA) { data_alloc += bue->devices[k].alloc; }
if (bue->type & BLOCK_FLAG_METADATA) { metadata_alloc += bue->devices[k].alloc; } }
if (bue->type & BLOCK_FLAG_DATA) data_size += bue->size;
if (bue->type & BLOCK_FLAG_METADATA) metadata_size += bue->size;
if (bue->next_entry > 0) bue = (btrfs_usage*)((uint8_t*)bue + bue->next_entry); else break; }
// device size
if (!load_string(module, IDS_USAGE_DEV_SIZE, u)) throw last_error(GetLastError());
format_size(dev_size, v, false);
wstring_sprintf(t, u, v.c_str());
s += t + L"\r\n";
// device allocated
if (!load_string(module, IDS_USAGE_DEV_ALLOC, u)) throw last_error(GetLastError());
format_size(dev_alloc, v, false);
wstring_sprintf(t, u, v.c_str());
#ifndef __REACTOS__ s += t + L"\r\n"s;#else s += t + L"\r\n";#endif
// device unallocated
if (!load_string(module, IDS_USAGE_DEV_UNALLOC, u)) throw last_error(GetLastError());
format_size(dev_size - dev_alloc, v, false);
wstring_sprintf(t, u, v.c_str());
#ifndef __REACTOS__ s += t + L"\r\n"s;#else s += t + L"\r\n";#endif
// data ratio
if (data_alloc > 0) { if (!load_string(module, IDS_USAGE_DATA_RATIO, u)) throw last_error(GetLastError());
wstring_sprintf(t, u, (float)data_alloc / (float)data_size);
#ifndef __REACTOS__ s += t + L"\r\n"s;#else s += t + L"\r\n";#endif }
// metadata ratio
if (!load_string(module, IDS_USAGE_METADATA_RATIO, u)) throw last_error(GetLastError());
wstring_sprintf(t, u, (float)metadata_alloc / (float)metadata_size);
s += t + L"\r\n\r\n";
for (i = 0; i < sizeof(types) / sizeof(types[0]); i++) { for (j = 0; j < sizeof(duptypes) / sizeof(duptypes[0]); j++) { bue = usage;
while (true) { if ((bue->type & types[i]) == types[i] && ((duptypes[j] == 0 && (bue->type & raid_types) == 0) || bue->type & duptypes[j])) { wstring sizestring, usedstring, typestring, dupstring;
if (bue->type & BLOCK_FLAG_DATA && bue->type & BLOCK_FLAG_METADATA && (types[i] == BLOCK_FLAG_DATA || types[i] == BLOCK_FLAG_METADATA)) break;
if (!load_string(module, typestrings[i], typestring)) throw last_error(GetLastError());
if (!load_string(module, dupstrings[j], dupstring)) throw last_error(GetLastError());
format_size(bue->size, sizestring, false); format_size(bue->used, usedstring, false);
wstring_sprintf(t, typestring, dupstring.c_str(), sizestring.c_str(), usedstring.c_str());
s += t + L"\r\n";
for (uint64_t k = 0; k < bue->num_devices; k++) { bool found = false;
format_size(bue->devices[k].alloc, sizestring, false);
for (size_t l = 0; l < min((uint64_t)SIZE_MAX, num_devs); l++) { if (devs[l].dev_id == bue->devices[k].dev_id) { s += devs[l].name + L"\t" + sizestring + L"\r\n";
devs[l].alloc += bue->devices[k].alloc;
found = true; break; } }
if (!found) { if (!load_string(module, IDS_UNKNOWN_DEVICE, typestring)) throw last_error(GetLastError());
wstring_sprintf(t, typestring, bue->devices[k].dev_id);
#ifndef __REACTOS__ s += t + L"\t"s + sizestring + L"\r\n"s;#else s += t + L"\t" + sizestring + L"\r\n";#endif } }
s += L"\r\n";
break; }
if (bue->next_entry > 0) bue = (btrfs_usage*)((uint8_t*)bue + bue->next_entry); else break; } } }
if (!load_string(module, IDS_USAGE_UNALLOC, t)) throw last_error(GetLastError());
#ifndef __REACTOS__ s += t + L"\r\n"s;#else s += t + L"\r\n";#endif
for (size_t k = 0; k < min((uint64_t)SIZE_MAX, num_devs); k++) { wstring sizestring;
format_size(devs[k].size - devs[k].alloc, sizestring, false);
s += devs[k].name + L"\t" + sizestring + L"\r\n"; }}
void BtrfsVolPropSheet::RefreshUsage(HWND hwndDlg) { wstring s; btrfs_usage* usage;
win_handle h = CreateFileW(fn.c_str(), FILE_TRAVERSE | FILE_READ_ATTRIBUTES, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, nullptr, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT, nullptr);
if (h != INVALID_HANDLE_VALUE) { NTSTATUS Status; IO_STATUS_BLOCK iosb; ULONG devsize, usagesize, i;
i = 0; devsize = 1024;
devices = (btrfs_device*)malloc(devsize);
while (true) { Status = NtFsControlFile(h, nullptr, nullptr, nullptr, &iosb, FSCTL_BTRFS_GET_DEVICES, nullptr, 0, devices, devsize); if (Status == STATUS_BUFFER_OVERFLOW) { if (i < 8) { devsize += 1024;
free(devices); devices = (btrfs_device*)malloc(devsize);
i++; } else return; } else break; }
if (!NT_SUCCESS(Status)) return;
i = 0; usagesize = 1024;
usage = (btrfs_usage*)malloc(usagesize);
while (true) { Status = NtFsControlFile(h, nullptr, nullptr, nullptr, &iosb, FSCTL_BTRFS_GET_USAGE, nullptr, 0, usage, usagesize); if (Status == STATUS_BUFFER_OVERFLOW) { if (i < 8) { usagesize += 1024;
free(usage); usage = (btrfs_usage*)malloc(usagesize);
i++; } else return; } else break; }
if (!NT_SUCCESS(Status)) { free(usage); return; }
ignore = false; } else return;
FormatUsage(hwndDlg, s, usage);
SetDlgItemTextW(hwndDlg, IDC_USAGE_BOX, s.c_str());
free(usage);}
INT_PTR CALLBACK BtrfsVolPropSheet::UsageDlgProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam) { try { switch (uMsg) { case WM_INITDIALOG: { wstring s; int i; ULONG usagesize; NTSTATUS Status; IO_STATUS_BLOCK iosb;
EnableThemeDialogTexture(hwndDlg, ETDT_ENABLETAB);
win_handle h = CreateFileW(fn.c_str(), FILE_TRAVERSE | FILE_READ_ATTRIBUTES, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, nullptr, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT, nullptr);
if (h != INVALID_HANDLE_VALUE) { btrfs_usage* usage;
i = 0; usagesize = 1024;
usage = (btrfs_usage*)malloc(usagesize);
while (true) { Status = NtFsControlFile(h, nullptr, nullptr, nullptr, &iosb, FSCTL_BTRFS_GET_USAGE, nullptr, 0, usage, usagesize); if (Status == STATUS_BUFFER_OVERFLOW) { if (i < 8) { usagesize += 1024;
free(usage); usage = (btrfs_usage*)malloc(usagesize);
i++; } else break; } else break; }
if (!NT_SUCCESS(Status)) { free(usage); break; }
FormatUsage(hwndDlg, s, usage);
SetDlgItemTextW(hwndDlg, IDC_USAGE_BOX, s.c_str());
free(usage); }
break; }
case WM_COMMAND: switch (HIWORD(wParam)) { case BN_CLICKED: switch (LOWORD(wParam)) { case IDOK: case IDCANCEL: EndDialog(hwndDlg, 0); return true;
case IDC_USAGE_REFRESH: RefreshUsage(hwndDlg); return true; } break; } break; } } catch (const exception& e) { error_message(hwndDlg, e.what()); }
return false;}
static INT_PTR CALLBACK stub_UsageDlgProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam) { BtrfsVolPropSheet* bvps;
if (uMsg == WM_INITDIALOG) { SetWindowLongPtrW(hwndDlg, GWLP_USERDATA, (LONG_PTR)lParam); bvps = (BtrfsVolPropSheet*)lParam; } else { bvps = (BtrfsVolPropSheet*)GetWindowLongPtrW(hwndDlg, GWLP_USERDATA); }
if (bvps) return bvps->UsageDlgProc(hwndDlg, uMsg, wParam, lParam); else return false;}
void BtrfsVolPropSheet::ShowUsage(HWND hwndDlg) { DialogBoxParamW(module, MAKEINTRESOURCEW(IDD_VOL_USAGE), hwndDlg, stub_UsageDlgProc, (LPARAM)this);}
static void add_lv_column(HWND list, int string, int cx) { LVCOLUMNW lvc; wstring s;
if (!load_string(module, string, s)) throw last_error(GetLastError());
lvc.mask = LVCF_TEXT|LVCF_WIDTH; lvc.pszText = (WCHAR*)s.c_str(); lvc.cx = cx; SendMessageW(list, LVM_INSERTCOLUMNW, 0, (LPARAM)&lvc);}
static int CALLBACK lv_sort(LPARAM lParam1, LPARAM lParam2, LPARAM lParamSort) { if (lParam1 < lParam2) return -1; else if (lParam1 > lParam2) return 1; else return 0;}
static uint64_t find_dev_alloc(uint64_t dev_id, btrfs_usage* usage) { btrfs_usage* bue; uint64_t alloc;
alloc = 0;
bue = usage; while (true) { uint64_t k;
for (k = 0; k < bue->num_devices; k++) { if (bue->devices[k].dev_id == dev_id) alloc += bue->devices[k].alloc; }
if (bue->next_entry > 0) bue = (btrfs_usage*)((uint8_t*)bue + bue->next_entry); else break; }
return alloc;}
void BtrfsVolPropSheet::RefreshDevList(HWND devlist) { NTSTATUS Status; IO_STATUS_BLOCK iosb; ULONG usagesize, devsize; btrfs_usage* usage; btrfs_device* bd; int i; uint64_t num_rw_devices; { win_handle h = CreateFileW(fn.c_str(), FILE_TRAVERSE | FILE_READ_ATTRIBUTES, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, nullptr, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT, nullptr);
if (h == INVALID_HANDLE_VALUE) throw last_error(GetLastError());
i = 0; devsize = 1024;
if (devices) free(devices);
devices = (btrfs_device*)malloc(devsize);
while (true) { Status = NtFsControlFile(h, nullptr, nullptr, nullptr, &iosb, FSCTL_BTRFS_GET_DEVICES, nullptr, 0, devices, devsize); if (Status == STATUS_BUFFER_OVERFLOW) { if (i < 8) { devsize += 1024;
free(devices); devices = (btrfs_device*)malloc(devsize);
i++; } else return; } else break; }
if (!NT_SUCCESS(Status)) return;
bd = devices;
i = 0; usagesize = 1024;
usage = (btrfs_usage*)malloc(usagesize);
while (true) { Status = NtFsControlFile(h, nullptr, nullptr, nullptr, &iosb, FSCTL_BTRFS_GET_USAGE, nullptr, 0, usage, usagesize); if (Status == STATUS_BUFFER_OVERFLOW) { if (i < 8) { usagesize += 1024;
free(usage); usage = (btrfs_usage*)malloc(usagesize);
i++; } else { free(usage); return; } } else break; }
if (!NT_SUCCESS(Status)) { free(usage); return; } }
SendMessageW(devlist, LVM_DELETEALLITEMS, 0, 0);
num_rw_devices = 0;
i = 0; while (true) { LVITEMW lvi; wstring s, u; uint64_t alloc;
// ID
RtlZeroMemory(&lvi, sizeof(LVITEMW)); lvi.mask = LVIF_TEXT | LVIF_PARAM; lvi.iItem = (int)SendMessageW(devlist, LVM_GETITEMCOUNT, 0, 0); lvi.lParam = (LPARAM)bd->dev_id;
s = to_wstring(bd->dev_id); lvi.pszText = (LPWSTR)s.c_str();
SendMessageW(devlist, LVM_INSERTITEMW, 0, (LPARAM)&lvi);
// description
lvi.mask = LVIF_TEXT; lvi.iSubItem = 1;
if (bd->missing) { if (!load_string(module, IDS_MISSING, s)) throw last_error(GetLastError()); } else if (bd->device_number == 0xffffffff) s = wstring(bd->name, bd->namelen / sizeof(WCHAR)); else if (bd->partition_number == 0) { if (!load_string(module, IDS_DISK_NUM, u)) throw last_error(GetLastError());
wstring_sprintf(s, u, bd->device_number); } else { if (!load_string(module, IDS_DISK_PART_NUM, u)) throw last_error(GetLastError());
wstring_sprintf(s, u, bd->device_number, bd->partition_number); }
lvi.pszText = (LPWSTR)s.c_str();
SendMessageW(devlist, LVM_SETITEMW, 0, (LPARAM)&lvi);
// readonly
lvi.iSubItem = 2; load_string(module, bd->readonly ? IDS_DEVLIST_READONLY_YES : IDS_DEVLIST_READONLY_NO, s); lvi.pszText = (LPWSTR)s.c_str(); SendMessageW(devlist, LVM_SETITEMW, 0, (LPARAM)&lvi);
if (!bd->readonly) num_rw_devices++;
// size
lvi.iSubItem = 3; format_size(bd->size, s, false); lvi.pszText = (LPWSTR)s.c_str(); SendMessageW(devlist, LVM_SETITEMW, 0, (LPARAM)&lvi);
// alloc
alloc = find_dev_alloc(bd->dev_id, usage);
lvi.iSubItem = 4; format_size(alloc, s, false); lvi.pszText = (LPWSTR)s.c_str(); SendMessageW(devlist, LVM_SETITEMW, 0, (LPARAM)&lvi);
// alloc %
wstring_sprintf(s, L"%1.1f%%", (float)alloc * 100.0f / (float)bd->size); lvi.iSubItem = 5; lvi.pszText = (LPWSTR)s.c_str(); SendMessageW(devlist, LVM_SETITEMW, 0, (LPARAM)&lvi);
i++;
if (bd->next_entry > 0) bd = (btrfs_device*)((uint8_t*)bd + bd->next_entry); else break; }
free(usage);
SendMessageW(devlist, LVM_SORTITEMS, 0, (LPARAM)lv_sort);
EnableWindow(GetDlgItem(GetParent(devlist), IDC_DEVICE_ADD), num_rw_devices > 0); EnableWindow(GetDlgItem(GetParent(devlist), IDC_DEVICE_REMOVE), num_rw_devices > 1);}
void BtrfsVolPropSheet::ResetStats(HWND hwndDlg) { wstring t, sel; WCHAR modfn[MAX_PATH]; SHELLEXECUTEINFOW sei;
sel = to_wstring(stats_dev);
GetModuleFileNameW(module, modfn, sizeof(modfn) / sizeof(WCHAR));
#ifndef __REACTOS__ t = L"\""s + modfn + L"\",ResetStats " + fn + L"|" + sel;#else t = wstring(L"\"") + modfn + wstring(L"\",ResetStats ") + fn + wstring(L"|") + sel;#endif
RtlZeroMemory(&sei, sizeof(sei));
sei.cbSize = sizeof(sei); sei.hwnd = hwndDlg; sei.lpVerb = L"runas"; sei.lpFile = L"rundll32.exe"; sei.lpParameters = t.c_str(); sei.nShow = SW_SHOW; sei.fMask = SEE_MASK_NOCLOSEPROCESS;
if (!ShellExecuteExW(&sei)) throw last_error(GetLastError());
WaitForSingleObject(sei.hProcess, INFINITE); CloseHandle(sei.hProcess);
win_handle h = CreateFileW(fn.c_str(), FILE_TRAVERSE | FILE_READ_ATTRIBUTES, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, nullptr, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT, nullptr);
if (h != INVALID_HANDLE_VALUE) { NTSTATUS Status; IO_STATUS_BLOCK iosb; ULONG devsize, i;
i = 0; devsize = 1024;
free(devices); devices = (btrfs_device*)malloc(devsize);
while (true) { Status = NtFsControlFile(h, nullptr, nullptr, nullptr, &iosb, FSCTL_BTRFS_GET_DEVICES, nullptr, 0, devices, devsize); if (Status == STATUS_BUFFER_OVERFLOW) { if (i < 8) { devsize += 1024;
free(devices); devices = (btrfs_device*)malloc(devsize);
i++; } else break; } else break; } }
EndDialog(hwndDlg, 0);}
INT_PTR CALLBACK BtrfsVolPropSheet::StatsDlgProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam) { try { switch (uMsg) { case WM_INITDIALOG: { WCHAR s[255]; wstring t; btrfs_device *bd, *dev = nullptr; int i;
static int stat_ids[] = { IDC_WRITE_ERRS, IDC_READ_ERRS, IDC_FLUSH_ERRS, IDC_CORRUPTION_ERRS, IDC_GENERATION_ERRS };
bd = devices;
while (true) { if (bd->dev_id == stats_dev) { dev = bd; break; }
if (bd->next_entry > 0) bd = (btrfs_device*)((uint8_t*)bd + bd->next_entry); else break; }
if (!dev) { EndDialog(hwndDlg, 0); throw string_error(IDS_CANNOT_FIND_DEVICE); }
GetDlgItemTextW(hwndDlg, IDC_DEVICE_ID, s, sizeof(s) / sizeof(WCHAR));
wstring_sprintf(t, s, dev->dev_id);
SetDlgItemTextW(hwndDlg, IDC_DEVICE_ID, t.c_str());
for (i = 0; i < 5; i++) { GetDlgItemTextW(hwndDlg, stat_ids[i], s, sizeof(s) / sizeof(WCHAR));
wstring_sprintf(t, s, dev->stats[i]);
SetDlgItemTextW(hwndDlg, stat_ids[i], t.c_str()); }
SendMessageW(GetDlgItem(hwndDlg, IDC_RESET_STATS), BCM_SETSHIELD, 0, true); EnableWindow(GetDlgItem(hwndDlg, IDC_RESET_STATS), !readonly);
break; }
case WM_COMMAND: switch (HIWORD(wParam)) { case BN_CLICKED: switch (LOWORD(wParam)) { case IDOK: case IDCANCEL: EndDialog(hwndDlg, 0); return true;
case IDC_RESET_STATS: ResetStats(hwndDlg); return true; } break; } break; } } catch (const exception& e) { error_message(hwndDlg, e.what()); }
return false;}
static INT_PTR CALLBACK stub_StatsDlgProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam) { BtrfsVolPropSheet* bvps;
if (uMsg == WM_INITDIALOG) { SetWindowLongPtrW(hwndDlg, GWLP_USERDATA, (LONG_PTR)lParam); bvps = (BtrfsVolPropSheet*)lParam; } else { bvps = (BtrfsVolPropSheet*)GetWindowLongPtrW(hwndDlg, GWLP_USERDATA); }
if (bvps) return bvps->StatsDlgProc(hwndDlg, uMsg, wParam, lParam); else return false;}
void BtrfsVolPropSheet::ShowStats(HWND hwndDlg, uint64_t devid) { stats_dev = devid;
DialogBoxParamW(module, MAKEINTRESOURCEW(IDD_DEVICE_STATS), hwndDlg, stub_StatsDlgProc, (LPARAM)this);}
INT_PTR CALLBACK BtrfsVolPropSheet::DeviceDlgProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam) { try { switch (uMsg) { case WM_INITDIALOG: { HWND devlist; RECT rect; ULONG w;
EnableThemeDialogTexture(hwndDlg, ETDT_ENABLETAB);
devlist = GetDlgItem(hwndDlg, IDC_DEVLIST);
GetClientRect(devlist, &rect); w = rect.right - rect.left;
add_lv_column(devlist, IDS_DEVLIST_ALLOC_PC, w * 5 / 44); add_lv_column(devlist, IDS_DEVLIST_ALLOC, w * 6 / 44); add_lv_column(devlist, IDS_DEVLIST_SIZE, w * 6 / 44); add_lv_column(devlist, IDS_DEVLIST_READONLY, w * 7 / 44); add_lv_column(devlist, IDS_DEVLIST_DESC, w * 16 / 44); add_lv_column(devlist, IDS_DEVLIST_ID, w * 4 / 44);
SendMessageW(GetDlgItem(hwndDlg, IDC_DEVICE_ADD), BCM_SETSHIELD, 0, true); SendMessageW(GetDlgItem(hwndDlg, IDC_DEVICE_REMOVE), BCM_SETSHIELD, 0, true); SendMessageW(GetDlgItem(hwndDlg, IDC_DEVICE_RESIZE), BCM_SETSHIELD, 0, true);
RefreshDevList(devlist);
break; }
case WM_COMMAND: switch (HIWORD(wParam)) { case BN_CLICKED: switch (LOWORD(wParam)) { case IDOK: case IDCANCEL: KillTimer(hwndDlg, 1); EndDialog(hwndDlg, 0); return true;
case IDC_DEVICE_ADD: { wstring t; WCHAR modfn[MAX_PATH]; SHELLEXECUTEINFOW sei;
GetModuleFileNameW(module, modfn, sizeof(modfn) / sizeof(WCHAR));
#ifndef __REACTOS__ t = L"\""s + modfn + L"\",AddDevice "s + fn;#else t = wstring(L"\"") + modfn + wstring(L"\",AddDevice ") + fn;#endif
RtlZeroMemory(&sei, sizeof(sei));
sei.cbSize = sizeof(sei); sei.hwnd = hwndDlg; sei.lpVerb = L"runas"; sei.lpFile = L"rundll32.exe"; sei.lpParameters = t.c_str(); sei.nShow = SW_SHOW; sei.fMask = SEE_MASK_NOCLOSEPROCESS;
if (!ShellExecuteExW(&sei)) throw last_error(GetLastError());
WaitForSingleObject(sei.hProcess, INFINITE); CloseHandle(sei.hProcess);
RefreshDevList(GetDlgItem(hwndDlg, IDC_DEVLIST));
return true; }
case IDC_DEVICE_REFRESH: RefreshDevList(GetDlgItem(hwndDlg, IDC_DEVLIST)); return true;
case IDC_DEVICE_SHOW_STATS: { WCHAR sel[MAX_PATH]; HWND devlist; LVITEMW lvi;
devlist = GetDlgItem(hwndDlg, IDC_DEVLIST);
auto index = SendMessageW(devlist, LVM_GETNEXTITEM, -1, LVNI_SELECTED);
if (index == -1) return true;
RtlZeroMemory(&lvi, sizeof(LVITEMW)); lvi.mask = LVIF_TEXT; lvi.iItem = (int)index; lvi.iSubItem = 0; lvi.pszText = sel; lvi.cchTextMax = sizeof(sel) / sizeof(WCHAR); SendMessageW(devlist, LVM_GETITEMW, 0, (LPARAM)&lvi);
ShowStats(hwndDlg, _wtoi(sel)); return true; }
case IDC_DEVICE_REMOVE: { wstring t, mess, mess2, title; WCHAR modfn[MAX_PATH], sel[MAX_PATH], sel2[MAX_PATH]; HWND devlist; SHELLEXECUTEINFOW sei; LVITEMW lvi;
devlist = GetDlgItem(hwndDlg, IDC_DEVLIST);
auto index = SendMessageW(devlist, LVM_GETNEXTITEM, -1, LVNI_SELECTED);
if (index == -1) return true;
RtlZeroMemory(&lvi, sizeof(LVITEMW)); lvi.mask = LVIF_TEXT; lvi.iItem = (int)index; lvi.iSubItem = 0; lvi.pszText = sel; lvi.cchTextMax = sizeof(sel) / sizeof(WCHAR); SendMessageW(devlist, LVM_GETITEMW, 0, (LPARAM)&lvi);
lvi.iSubItem = 1; lvi.pszText = sel2; lvi.cchTextMax = sizeof(sel2) / sizeof(WCHAR); SendMessageW(devlist, LVM_GETITEMW, 0, (LPARAM)&lvi);
if (!load_string(module, IDS_REMOVE_DEVICE_CONFIRMATION, mess)) throw last_error(GetLastError());
wstring_sprintf(mess2, mess, sel, sel2);
if (!load_string(module, IDS_CONFIRMATION_TITLE, title)) throw last_error(GetLastError());
if (MessageBoxW(hwndDlg, mess2.c_str(), title.c_str(), MB_YESNO) != IDYES) return true;
GetModuleFileNameW(module, modfn, sizeof(modfn) / sizeof(WCHAR));
#ifndef __REACTOS__ t = L"\""s + modfn + L"\",RemoveDevice "s + fn + L"|"s + sel;#else t = wstring(L"\"") + modfn + wstring(L"\",RemoveDevice ") + fn + wstring(L"|") + sel;#endif
RtlZeroMemory(&sei, sizeof(sei));
sei.cbSize = sizeof(sei); sei.hwnd = hwndDlg; sei.lpVerb = L"runas"; sei.lpFile = L"rundll32.exe"; sei.lpParameters = t.c_str(); sei.nShow = SW_SHOW; sei.fMask = SEE_MASK_NOCLOSEPROCESS;
if (!ShellExecuteExW(&sei)) throw last_error(GetLastError());
WaitForSingleObject(sei.hProcess, INFINITE); CloseHandle(sei.hProcess);
RefreshDevList(GetDlgItem(hwndDlg, IDC_DEVLIST));
return true; }
case IDC_DEVICE_RESIZE: { HWND devlist; LVITEMW lvi; wstring t; WCHAR modfn[MAX_PATH], sel[100]; SHELLEXECUTEINFOW sei;
devlist = GetDlgItem(hwndDlg, IDC_DEVLIST);
auto index = SendMessageW(devlist, LVM_GETNEXTITEM, -1, LVNI_SELECTED);
if (index == -1) return true;
RtlZeroMemory(&lvi, sizeof(LVITEMW)); lvi.mask = LVIF_TEXT; lvi.iItem = (int)index; lvi.iSubItem = 0; lvi.pszText = sel; lvi.cchTextMax = sizeof(sel) / sizeof(WCHAR); SendMessageW(devlist, LVM_GETITEMW, 0, (LPARAM)&lvi);
GetModuleFileNameW(module, modfn, sizeof(modfn) / sizeof(WCHAR));
#ifndef __REACTOS__ t = L"\""s + modfn + L"\",ResizeDevice "s + fn + L"|"s + sel;#else t = wstring(L"\"") + modfn + wstring(L"\",ResizeDevice ") + fn + wstring(L"|") + sel;#endif
RtlZeroMemory(&sei, sizeof(sei));
sei.cbSize = sizeof(sei); sei.hwnd = hwndDlg; sei.lpVerb = L"runas"; sei.lpFile = L"rundll32.exe"; sei.lpParameters = t.c_str(); sei.nShow = SW_SHOW; sei.fMask = SEE_MASK_NOCLOSEPROCESS;
if (!ShellExecuteExW(&sei)) throw last_error(GetLastError());
WaitForSingleObject(sei.hProcess, INFINITE); CloseHandle(sei.hProcess);
RefreshDevList(GetDlgItem(hwndDlg, IDC_DEVLIST)); } } break; } break;
case WM_NOTIFY: switch (((LPNMHDR)lParam)->code) { case LVN_ITEMCHANGED: { NMLISTVIEW* nmv = (NMLISTVIEW*)lParam;
EnableWindow(GetDlgItem(hwndDlg, IDC_DEVICE_SHOW_STATS), nmv->uNewState & LVIS_SELECTED);
if (nmv->uNewState & LVIS_SELECTED && !readonly) { HWND devlist; btrfs_device* bd; bool device_readonly = false; LVITEMW lvi; WCHAR sel[MAX_PATH]; uint64_t devid;
devlist = GetDlgItem(hwndDlg, IDC_DEVLIST);
RtlZeroMemory(&lvi, sizeof(LVITEMW)); lvi.mask = LVIF_TEXT; lvi.iItem = nmv->iItem; lvi.iSubItem = 0; lvi.pszText = sel; lvi.cchTextMax = sizeof(sel) / sizeof(WCHAR); SendMessageW(devlist, LVM_GETITEMW, 0, (LPARAM)&lvi); devid = _wtoi(sel);
bd = devices;
while (true) { if (bd->dev_id == devid) { device_readonly = bd->readonly; break; }
if (bd->next_entry > 0) bd = (btrfs_device*)((uint8_t*)bd + bd->next_entry); else break; }
EnableWindow(GetDlgItem(hwndDlg, IDC_DEVICE_RESIZE), !device_readonly); } else EnableWindow(GetDlgItem(hwndDlg, IDC_DEVICE_RESIZE), false);
break; } } break; } } catch (const exception& e) { error_message(hwndDlg, e.what()); }
return false;}
static INT_PTR CALLBACK stub_DeviceDlgProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam) { BtrfsVolPropSheet* bvps;
if (uMsg == WM_INITDIALOG) { SetWindowLongPtrW(hwndDlg, GWLP_USERDATA, (LONG_PTR)lParam); bvps = (BtrfsVolPropSheet*)lParam; } else { bvps = (BtrfsVolPropSheet*)GetWindowLongPtrW(hwndDlg, GWLP_USERDATA); }
if (bvps) return bvps->DeviceDlgProc(hwndDlg, uMsg, wParam, lParam); else return false;}
void BtrfsVolPropSheet::ShowDevices(HWND hwndDlg) { DialogBoxParamW(module, MAKEINTRESOURCEW(IDD_DEVICES), hwndDlg, stub_DeviceDlgProc, (LPARAM)this);}
void BtrfsVolPropSheet::ShowScrub(HWND hwndDlg) { wstring t; WCHAR modfn[MAX_PATH]; SHELLEXECUTEINFOW sei;
GetModuleFileNameW(module, modfn, sizeof(modfn) / sizeof(WCHAR));
#ifndef __REACTOS__ t = L"\""s + modfn + L"\",ShowScrub "s + fn;#else t = wstring(L"\"") + modfn + wstring(L"\",ShowScrub ") + fn;#endif
RtlZeroMemory(&sei, sizeof(sei));
sei.cbSize = sizeof(sei); sei.hwnd = hwndDlg; sei.lpVerb = L"runas"; sei.lpFile = L"rundll32.exe"; sei.lpParameters = t.c_str(); sei.nShow = SW_SHOW; sei.fMask = SEE_MASK_NOCLOSEPROCESS;
if (!ShellExecuteExW(&sei)) throw last_error(GetLastError());
WaitForSingleObject(sei.hProcess, INFINITE); CloseHandle(sei.hProcess);}
void BtrfsVolPropSheet::ShowChangeDriveLetter(HWND hwndDlg) { wstring t; WCHAR modfn[MAX_PATH]; SHELLEXECUTEINFOW sei;
GetModuleFileNameW(module, modfn, sizeof(modfn) / sizeof(WCHAR));
#ifndef __REACTOS__ t = L"\""s + modfn + L"\",ShowChangeDriveLetter "s + fn;#else t = wstring(L"\"") + modfn + wstring(L"\",ShowChangeDriveLetter ") + fn;#endif
RtlZeroMemory(&sei, sizeof(sei));
sei.cbSize = sizeof(sei); sei.hwnd = hwndDlg; sei.lpVerb = L"runas"; sei.lpFile = L"rundll32.exe"; sei.lpParameters = t.c_str(); sei.nShow = SW_SHOW; sei.fMask = SEE_MASK_NOCLOSEPROCESS;
if (!ShellExecuteExW(&sei)) throw last_error(GetLastError());
WaitForSingleObject(sei.hProcess, INFINITE); CloseHandle(sei.hProcess);}
static INT_PTR CALLBACK PropSheetDlgProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam) { try { switch (uMsg) { case WM_INITDIALOG: { PROPSHEETPAGEW* psp = (PROPSHEETPAGEW*)lParam; BtrfsVolPropSheet* bps = (BtrfsVolPropSheet*)psp->lParam; btrfs_device* bd;
EnableThemeDialogTexture(hwndDlg, ETDT_ENABLETAB);
SetWindowLongPtrW(hwndDlg, GWLP_USERDATA, (LONG_PTR)bps);
bps->readonly = true; bd = bps->devices;
while (true) { if (!bd->readonly) { bps->readonly = false; break; }
if (bd->next_entry > 0) bd = (btrfs_device*)((uint8_t*)bd + bd->next_entry); else break; }
if (bps->uuid_set) { WCHAR s[255]; wstring t;
GetDlgItemTextW(hwndDlg, IDC_UUID, s, sizeof(s) / sizeof(WCHAR));
wstring_sprintf(t, s, bps->uuid.uuid[0], bps->uuid.uuid[1], bps->uuid.uuid[2], bps->uuid.uuid[3], bps->uuid.uuid[4], bps->uuid.uuid[5], bps->uuid.uuid[6], bps->uuid.uuid[7], bps->uuid.uuid[8], bps->uuid.uuid[9], bps->uuid.uuid[10], bps->uuid.uuid[11], bps->uuid.uuid[12], bps->uuid.uuid[13], bps->uuid.uuid[14], bps->uuid.uuid[15]);
SetDlgItemTextW(hwndDlg, IDC_UUID, t.c_str()); } else SetDlgItemTextW(hwndDlg, IDC_UUID, L"");
SendMessageW(GetDlgItem(hwndDlg, IDC_VOL_SCRUB), BCM_SETSHIELD, 0, true); SendMessageW(GetDlgItem(hwndDlg, IDC_VOL_CHANGE_DRIVE_LETTER), BCM_SETSHIELD, 0, true);
return false; }
case WM_NOTIFY: { switch (((LPNMHDR)lParam)->code) { case PSN_KILLACTIVE: SetWindowLongPtrW(hwndDlg, DWLP_MSGRESULT, false); break; } break; }
case WM_COMMAND: { BtrfsVolPropSheet* bps = (BtrfsVolPropSheet*)GetWindowLongPtrW(hwndDlg, GWLP_USERDATA);
if (bps) { switch (HIWORD(wParam)) { case BN_CLICKED: { switch (LOWORD(wParam)) { case IDC_VOL_SHOW_USAGE: bps->ShowUsage(hwndDlg); break;
case IDC_VOL_BALANCE: bps->balance->ShowBalance(hwndDlg); break;
case IDC_VOL_DEVICES: bps->ShowDevices(hwndDlg); break;
case IDC_VOL_SCRUB: bps->ShowScrub(hwndDlg); break;
case IDC_VOL_CHANGE_DRIVE_LETTER: bps->ShowChangeDriveLetter(hwndDlg); break; } } } }
break; } } } catch (const exception& e) { error_message(hwndDlg, e.what()); }
return false;}
HRESULT __stdcall BtrfsVolPropSheet::AddPages(LPFNADDPROPSHEETPAGE pfnAddPage, LPARAM lParam) { try { PROPSHEETPAGEW psp; HPROPSHEETPAGE hPage; INITCOMMONCONTROLSEX icex;
if (ignore) return S_OK;
icex.dwSize = sizeof(icex); icex.dwICC = ICC_LINK_CLASS;
if (!InitCommonControlsEx(&icex)) throw string_error(IDS_INITCOMMONCONTROLSEX_FAILED);
psp.dwSize = sizeof(psp); psp.dwFlags = PSP_USEREFPARENT | PSP_USETITLE; psp.hInstance = module; psp.pszTemplate = MAKEINTRESOURCEW(IDD_VOL_PROP_SHEET); psp.hIcon = 0; psp.pszTitle = MAKEINTRESOURCEW(IDS_VOL_PROP_SHEET_TITLE); psp.pfnDlgProc = (DLGPROC)PropSheetDlgProc; psp.pcRefParent = (UINT*)&objs_loaded; psp.pfnCallback = nullptr; psp.lParam = (LPARAM)this;
hPage = CreatePropertySheetPageW(&psp);
if (hPage) { if (pfnAddPage(hPage, lParam)) { this->AddRef(); return S_OK; } else DestroyPropertySheetPage(hPage); } else return E_OUTOFMEMORY; } catch (const exception& e) { error_message(nullptr, e.what()); }
return E_FAIL;}
HRESULT __stdcall BtrfsVolPropSheet::ReplacePage(UINT uPageID, LPFNADDPROPSHEETPAGE pfnReplacePage, LPARAM lParam) { return S_OK;}
void BtrfsChangeDriveLetter::do_change(HWND hwndDlg) { unsigned int sel = (unsigned int)SendDlgItemMessageW(hwndDlg, IDC_DRIVE_LETTER_COMBO, CB_GETCURSEL, 0, 0);
if (sel < letters.size()) { wstring dd;
if (fn.length() == 3 && fn[1] == L':' && fn[2] == L'\\') { dd = L"\\DosDevices\\?:";
dd[12] = fn[0]; } else#ifndef __REACTOS__ throw runtime_error("Volume path was not root of drive.");#else error_message(nullptr, "Volume path was not root of drive.");#endif
mountmgr mm; wstring dev_name;
{ auto v = mm.query_points(dd);
if (v.empty())#ifndef __REACTOS__ throw runtime_error("Error finding device name.");#else error_message(nullptr, "Error finding device name.");#endif
dev_name = v[0].device_name; }
wstring new_dd = L"\\DosDevices\\?:"; new_dd[12] = letters[sel];
mm.delete_points(dd);
try { mm.create_point(new_dd, dev_name); } catch (...) { // if fails, try to recreate old symlink, so we're not left with no drive letter at all mm.create_point(dd, dev_name); throw; } }
EndDialog(hwndDlg, 1);}
INT_PTR BtrfsChangeDriveLetter::DlgProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam) { try { switch (uMsg) { case WM_INITDIALOG: { HWND cb = GetDlgItem(hwndDlg, IDC_DRIVE_LETTER_COMBO);
SendMessageW(cb, CB_RESETCONTENT, 0, 0);
mountmgr mm; wstring drv;
drv = L"\\DosDevices\\?:";
for (wchar_t l = 'A'; l <= 'Z'; l++) { bool found = true;
drv[12] = l;
try { auto v = mm.query_points(drv);
if (v.empty()) found = false; } catch (const ntstatus_error& ntstatus) { if (ntstatus.Status == STATUS_OBJECT_NAME_NOT_FOUND) found = false; else throw; }
if (!found) { wstring str = L"?:";
str[0] = l; letters.push_back(l);
SendMessageW(cb, CB_ADDSTRING, 0, reinterpret_cast<LPARAM>(str.c_str())); } }
break; }
case WM_COMMAND: switch (HIWORD(wParam)) { case BN_CLICKED: switch (LOWORD(wParam)) { case IDOK: do_change(hwndDlg); return true;
case IDCANCEL: EndDialog(hwndDlg, 0); return true; } break; } break; } } catch (const exception& e) { error_message(hwndDlg, e.what()); }
return false;}
static INT_PTR __stdcall dlg_proc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam) { BtrfsChangeDriveLetter* bcdl;
if (uMsg == WM_INITDIALOG) { SetWindowLongPtrW(hwndDlg, GWLP_USERDATA, (LONG_PTR)lParam); bcdl = (BtrfsChangeDriveLetter*)lParam; } else bcdl = (BtrfsChangeDriveLetter*)GetWindowLongPtrW(hwndDlg, GWLP_USERDATA);
return bcdl->DlgProc(hwndDlg, uMsg, wParam, lParam);}
void BtrfsChangeDriveLetter::show() { DialogBoxParamW(module, MAKEINTRESOURCEW(IDD_DRIVE_LETTER), hwnd, dlg_proc, (LPARAM)this);}
#ifdef __cplusplusextern "C" {#endif
void CALLBACK ResetStatsW(HWND hwnd, HINSTANCE hinst, LPWSTR lpszCmdLine, int nCmdShow) { try { win_handle token; NTSTATUS Status; TOKEN_PRIVILEGES tp; LUID luid; uint64_t devid; wstring cmdline, vol, dev; size_t pipe; IO_STATUS_BLOCK iosb;
set_dpi_aware();
cmdline = lpszCmdLine;
if (!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &token)) throw last_error(GetLastError());
if (!LookupPrivilegeValueW(nullptr, L"SeManageVolumePrivilege", &luid)) throw last_error(GetLastError());
tp.PrivilegeCount = 1; tp.Privileges[0].Luid = luid; tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
if (!AdjustTokenPrivileges(token, false, &tp, sizeof(TOKEN_PRIVILEGES), nullptr, nullptr)) throw last_error(GetLastError());
pipe = cmdline.find(L"|");
if (pipe == string::npos) return;
vol = cmdline.substr(0, pipe); dev = cmdline.substr(pipe + 1);
devid = _wtoi(dev.c_str()); if (devid == 0) return;
win_handle h = CreateFileW(vol.c_str(), FILE_TRAVERSE | FILE_READ_ATTRIBUTES, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, nullptr, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT, nullptr);
if (h == INVALID_HANDLE_VALUE) throw last_error(GetLastError());
Status = NtFsControlFile(h, nullptr, nullptr, nullptr, &iosb, FSCTL_BTRFS_RESET_STATS, &devid, sizeof(uint64_t), nullptr, 0); if (!NT_SUCCESS(Status)) throw ntstatus_error(Status); } catch (const exception& e) { error_message(hwnd, e.what()); }}
void CALLBACK ShowChangeDriveLetterW(HWND hwnd, HINSTANCE hinst, LPWSTR lpszCmdLine, int nCmdShow) { BtrfsChangeDriveLetter bcdl(hwnd, lpszCmdLine);
bcdl.show();}
#ifdef __cplusplus}#endif