reactos/dll/shellext/shellbtrfs/devices.cpp
Vincent Franchomme b826992ab2 [BTRFS][UBTRFS][SHELLBTRFS] Upgrade to 1.7.5 (#4417)
v1.7.5 (2020-10-31):

- Fixed text display issue in shell extension
- Added support for mingw 8
- Fixed LXSS permissions not working in new versions of Windows
- Fixed issue where truncating an inline file wouldn't change its size
- Fixed crash with Quibble where driver would try to use AVX2 before Windows had enabled it
2022-05-03 17:30:11 +02:00

983 lines
34 KiB
C++

/* 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"
#include "devices.h"
#include "resource.h"
#include "balance.h"
#include <stddef.h>
#include <uxtheme.h>
#include <setupapi.h>
#include <strsafe.h>
#include <mountmgr.h>
#ifndef __REACTOS__
#include <algorithm>
#include "../btrfs.h"
#include "mountmgr.h"
#else
#include <ntddstor.h>
#include <ndk/rtlfuncs.h>
#include <ndk/obfuncs.h>
#include "btrfs.h"
#include "mountmgr_local.h"
#endif
DEFINE_GUID(GUID_DEVINTERFACE_HIDDEN_VOLUME, 0x7f108a28L, 0x9833, 0x4b3b, 0xb7, 0x80, 0x2c, 0x6b, 0x5f, 0xa5, 0xc0, 0x62);
static wstring get_mountdev_name(const nt_handle& h ) {
NTSTATUS Status;
IO_STATUS_BLOCK iosb;
MOUNTDEV_NAME mdn, *mdn2;
wstring name;
Status = NtDeviceIoControlFile(h, nullptr, nullptr, nullptr, &iosb, IOCTL_MOUNTDEV_QUERY_DEVICE_NAME,
nullptr, 0, &mdn, sizeof(MOUNTDEV_NAME));
if (!NT_SUCCESS(Status) && Status != STATUS_BUFFER_OVERFLOW)
return L"";
size_t mdnsize = offsetof(MOUNTDEV_NAME, Name[0]) + mdn.NameLength;
mdn2 = (MOUNTDEV_NAME*)malloc(mdnsize);
Status = NtDeviceIoControlFile(h, nullptr, nullptr, nullptr, &iosb, IOCTL_MOUNTDEV_QUERY_DEVICE_NAME,
nullptr, 0, mdn2, (ULONG)mdnsize);
if (!NT_SUCCESS(Status)) {
free(mdn2);
return L"";
}
name = wstring(mdn2->Name, mdn2->NameLength / sizeof(WCHAR));
free(mdn2);
return name;
}
static void find_devices(HWND hwnd, const GUID* guid, const mountmgr& mm, vector<device>& device_list) {
HDEVINFO h;
static const wstring dosdevices = L"\\DosDevices\\";
h = SetupDiGetClassDevsW(guid, nullptr, 0, DIGCF_DEVICEINTERFACE | DIGCF_PRESENT);
if (h != INVALID_HANDLE_VALUE) {
DWORD index = 0;
SP_DEVICE_INTERFACE_DATA did;
did.cbSize = sizeof(did);
if (!SetupDiEnumDeviceInterfaces(h, nullptr, guid, index, &did))
return;
do {
SP_DEVINFO_DATA dd;
SP_DEVICE_INTERFACE_DETAIL_DATA_W* detail;
DWORD size;
dd.cbSize = sizeof(dd);
SetupDiGetDeviceInterfaceDetailW(h, &did, nullptr, 0, &size, nullptr);
detail = (SP_DEVICE_INTERFACE_DETAIL_DATA_W*)malloc(size);
memset(detail, 0, size);
detail->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA_W);
if (SetupDiGetDeviceInterfaceDetailW(h, &did, detail, size, &size, &dd)) {
NTSTATUS Status;
nt_handle file;
device dev;
STORAGE_DEVICE_NUMBER sdn;
IO_STATUS_BLOCK iosb;
UNICODE_STRING path;
OBJECT_ATTRIBUTES attr;
GET_LENGTH_INFORMATION gli;
ULONG i;
uint8_t sb[4096];
path.Buffer = detail->DevicePath;
path.Length = path.MaximumLength = (uint16_t)(wcslen(detail->DevicePath) * sizeof(WCHAR));
if (path.Length > 4 * sizeof(WCHAR) && path.Buffer[0] == '\\' && path.Buffer[1] == '\\' && path.Buffer[2] == '?' && path.Buffer[3] == '\\')
path.Buffer[1] = '?';
InitializeObjectAttributes(&attr, &path, 0, nullptr, nullptr);
Status = NtOpenFile(&file, FILE_GENERIC_READ, &attr, &iosb, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, FILE_SYNCHRONOUS_IO_ALERT);
if (!NT_SUCCESS(Status)) {
free(detail);
index++;
continue;
}
dev.pnp_name = detail->DevicePath;
Status = NtDeviceIoControlFile(file, nullptr, nullptr, nullptr, &iosb, IOCTL_DISK_GET_LENGTH_INFO, nullptr, 0, &gli, sizeof(GET_LENGTH_INFORMATION));
if (!NT_SUCCESS(Status)) {
free(detail);
index++;
continue;
}
dev.size = gli.Length.QuadPart;
Status = NtDeviceIoControlFile(file, nullptr, nullptr, nullptr, &iosb, IOCTL_STORAGE_GET_DEVICE_NUMBER, nullptr, 0, &sdn, sizeof(STORAGE_DEVICE_NUMBER));
if (!NT_SUCCESS(Status)) {
dev.disk_num = 0xffffffff;
dev.part_num = 0xffffffff;
} else {
dev.disk_num = sdn.DeviceNumber;
dev.part_num = sdn.PartitionNumber;
}
dev.friendly_name = L"";
dev.drive = L"";
dev.fstype = L"";
dev.has_parts = false;
dev.ignore = false;
dev.multi_device = false;
dev.is_disk = RtlCompareMemory(guid, &GUID_DEVINTERFACE_DISK, sizeof(GUID)) == sizeof(GUID);
if (dev.is_disk) {
STORAGE_PROPERTY_QUERY spq;
STORAGE_DEVICE_DESCRIPTOR sdd, *sdd2;
ULONG dlisize;
DRIVE_LAYOUT_INFORMATION_EX* dli;
spq.PropertyId = StorageDeviceProperty;
spq.QueryType = PropertyStandardQuery;
spq.AdditionalParameters[0] = 0;
Status = NtDeviceIoControlFile(file, nullptr, nullptr, nullptr, &iosb, IOCTL_STORAGE_QUERY_PROPERTY,
&spq, sizeof(STORAGE_PROPERTY_QUERY), &sdd, sizeof(STORAGE_DEVICE_DESCRIPTOR));
if (NT_SUCCESS(Status) || Status == STATUS_BUFFER_OVERFLOW) {
sdd2 = (STORAGE_DEVICE_DESCRIPTOR*)malloc(sdd.Size);
Status = NtDeviceIoControlFile(file, nullptr, nullptr, nullptr, &iosb, IOCTL_STORAGE_QUERY_PROPERTY,
&spq, sizeof(STORAGE_PROPERTY_QUERY), sdd2, sdd.Size);
if (NT_SUCCESS(Status)) {
string desc2;
desc2 = "";
if (sdd2->VendorIdOffset != 0) {
desc2 += (char*)((uint8_t*)sdd2 + sdd2->VendorIdOffset);
while (desc2.length() > 0 && desc2[desc2.length() - 1] == ' ')
desc2 = desc2.substr(0, desc2.length() - 1);
}
if (sdd2->ProductIdOffset != 0) {
if (sdd2->VendorIdOffset != 0 && desc2.length() != 0 && desc2[desc2.length() - 1] != ' ')
desc2 += " ";
desc2 += (char*)((uint8_t*)sdd2 + sdd2->ProductIdOffset);
while (desc2.length() > 0 && desc2[desc2.length() - 1] == ' ')
desc2 = desc2.substr(0, desc2.length() - 1);
}
if (sdd2->VendorIdOffset != 0 || sdd2->ProductIdOffset != 0) {
ULONG ss;
ss = MultiByteToWideChar(CP_OEMCP, MB_PRECOMPOSED, desc2.c_str(), -1, nullptr, 0);
if (ss > 0) {
WCHAR* desc3 = (WCHAR*)malloc(ss * sizeof(WCHAR));
if (MultiByteToWideChar(CP_OEMCP, MB_PRECOMPOSED, desc2.c_str(), -1, desc3, ss))
dev.friendly_name = desc3;
free(desc3);
}
}
}
free(sdd2);
}
dlisize = 0;
dli = nullptr;
do {
dlisize += 1024;
if (dli)
free(dli);
dli = (DRIVE_LAYOUT_INFORMATION_EX*)malloc(dlisize);
Status = NtDeviceIoControlFile(file, nullptr, nullptr, nullptr, &iosb, IOCTL_DISK_GET_DRIVE_LAYOUT_EX,
nullptr, 0, dli, dlisize);
} while (Status == STATUS_BUFFER_TOO_SMALL);
if (NT_SUCCESS(Status) && dli->PartitionCount > 0)
dev.has_parts = true;
free(dli);
} else {
try {
auto v = mm.query_points(L"", L"", wstring_view(path.Buffer, path.Length / sizeof(WCHAR)));
#ifndef __REACTOS__
for (const auto& p : v) {
if (p.symlink.length() == 14 && p.symlink.substr(0, dosdevices.length()) == dosdevices && p.symlink[13] == ':') {
#else
for(auto p = v.begin(); p != v.end(); ++p) {
if ((*p).symlink.length() == 14 && (*p).symlink.substr(0, dosdevices.length()) == dosdevices && (*p).symlink[13] == ':') {
#endif
WCHAR dr[3];
#ifndef __REACTOS__
dr[0] = p.symlink[12];
#else
dr[0] = (*p).symlink[12];
#endif
dr[1] = ':';
dr[2] = 0;
dev.drive = dr;
break;
}
}
} catch (...) { // don't fail entirely if mountmgr refuses to co-operate
}
}
if (!dev.is_disk || !dev.has_parts) {
i = 0;
while (fs_ident[i].name) {
if (i == 0 || fs_ident[i].kboff != fs_ident[i-1].kboff) {
LARGE_INTEGER off;
off.QuadPart = fs_ident[i].kboff * 1024;
Status = NtReadFile(file, nullptr, nullptr, nullptr, &iosb, sb, sizeof(sb), &off, nullptr);
}
if (NT_SUCCESS(Status)) {
if (RtlCompareMemory(sb + fs_ident[i].sboff, fs_ident[i].magic, fs_ident[i].magiclen) == fs_ident[i].magiclen) {
dev.fstype = fs_ident[i].name;
if (dev.fstype == L"Btrfs") {
superblock* bsb = (superblock*)sb;
RtlCopyMemory(&dev.fs_uuid, &bsb->uuid, sizeof(BTRFS_UUID));
RtlCopyMemory(&dev.dev_uuid, &bsb->dev_item.device_uuid, sizeof(BTRFS_UUID));
}
break;
}
}
i++;
}
if (dev.fstype == L"Btrfs" && RtlCompareMemory(guid, &GUID_DEVINTERFACE_DISK, sizeof(GUID)) != sizeof(GUID)) {
wstring name;
wstring pref = L"\\Device\\Btrfs{";
name = get_mountdev_name(file);
if (name.length() > pref.length() && RtlCompareMemory(name.c_str(), pref.c_str(), pref.length() * sizeof(WCHAR)) == pref.length() * sizeof(WCHAR))
dev.ignore = true;
}
}
device_list.push_back(dev);
}
free(detail);
index++;
} while (SetupDiEnumDeviceInterfaces(h, nullptr, guid, index, &did));
SetupDiDestroyDeviceInfoList(h);
} else
throw last_error(GetLastError());
}
#ifndef __REACTOS__ // Disabled because building with our <algorithm> seems complex right now...
static bool sort_devices(device i, device j) {
if (i.disk_num < j.disk_num)
return true;
if (i.disk_num == j.disk_num && i.part_num < j.part_num)
return true;
return false;
}
#endif
void BtrfsDeviceAdd::populate_device_tree(HWND tree) {
HWND hwnd = GetParent(tree);
unsigned int i;
ULONG last_disk_num = 0xffffffff;
HTREEITEM diskitem;
NTSTATUS Status;
OBJECT_ATTRIBUTES attr;
UNICODE_STRING us;
IO_STATUS_BLOCK iosb;
btrfs_filesystem* bfs = nullptr;
static WCHAR btrfs[] = L"\\Btrfs";
device_list.clear();
{
mountmgr mm;
{
nt_handle btrfsh;
us.Length = us.MaximumLength = (uint16_t)(wcslen(btrfs) * sizeof(WCHAR));
us.Buffer = btrfs;
InitializeObjectAttributes(&attr, &us, 0, nullptr, nullptr);
Status = NtOpenFile(&btrfsh, SYNCHRONIZE | FILE_READ_ATTRIBUTES, &attr, &iosb,
FILE_SHARE_READ | FILE_SHARE_WRITE, FILE_SYNCHRONOUS_IO_ALERT);
if (NT_SUCCESS(Status)) {
ULONG bfssize = 0;
do {
bfssize += 1024;
if (bfs) free(bfs);
bfs = (btrfs_filesystem*)malloc(bfssize);
Status = NtDeviceIoControlFile(btrfsh, nullptr, nullptr, nullptr, &iosb, IOCTL_BTRFS_QUERY_FILESYSTEMS, nullptr, 0, bfs, bfssize);
if (!NT_SUCCESS(Status) && Status != STATUS_BUFFER_OVERFLOW) {
free(bfs);
bfs = nullptr;
break;
}
} while (Status == STATUS_BUFFER_OVERFLOW);
if (bfs && bfs->num_devices == 0) { // no mounted filesystems found
free(bfs);
bfs = nullptr;
}
}
}
find_devices(hwnd, &GUID_DEVINTERFACE_DISK, mm, device_list);
find_devices(hwnd, &GUID_DEVINTERFACE_VOLUME, mm, device_list);
find_devices(hwnd, &GUID_DEVINTERFACE_HIDDEN_VOLUME, mm, device_list);
}
#ifndef __REACTOS__ // Disabled because building with our <algorithm> seems complex right now...
sort(device_list.begin(), device_list.end(), sort_devices);
#endif
for (i = 0; i < device_list.size(); i++) {
if (!device_list[i].ignore) {
TVINSERTSTRUCTW tis;
HTREEITEM item;
wstring name, size;
if (device_list[i].disk_num != 0xffffffff && device_list[i].disk_num == last_disk_num)
tis.hParent = diskitem;
else
tis.hParent = TVI_ROOT;
tis.hInsertAfter = TVI_LAST;
tis.itemex.mask = TVIF_TEXT | TVIF_STATE | TVIF_PARAM;
tis.itemex.state = TVIS_EXPANDED;
tis.itemex.stateMask = TVIS_EXPANDED;
if (device_list[i].disk_num != 0xffffffff) {
wstring t;
if (!load_string(module, device_list[i].part_num != 0 ? IDS_PARTITION : IDS_DISK_NUM, t))
throw last_error(GetLastError());
wstring_sprintf(name, t, device_list[i].part_num != 0 ? device_list[i].part_num : device_list[i].disk_num);
} else
name = device_list[i].pnp_name;
// match child Btrfs devices to their parent
if (bfs && device_list[i].drive == L"" && device_list[i].fstype == L"Btrfs") {
btrfs_filesystem* bfs2 = bfs;
while (true) {
if (RtlCompareMemory(&bfs2->uuid, &device_list[i].fs_uuid, sizeof(BTRFS_UUID)) == sizeof(BTRFS_UUID)) {
ULONG j, k;
btrfs_filesystem_device* dev;
for (j = 0; j < bfs2->num_devices; j++) {
if (j == 0)
dev = &bfs2->device;
else
dev = (btrfs_filesystem_device*)((uint8_t*)dev + offsetof(btrfs_filesystem_device, name[0]) + dev->name_length);
if (RtlCompareMemory(&device_list[i].dev_uuid, &device_list[i].dev_uuid, sizeof(BTRFS_UUID)) == sizeof(BTRFS_UUID)) {
for (k = 0; k < device_list.size(); k++) {
if (k != i && device_list[k].fstype == L"Btrfs" && device_list[k].drive != L"" &&
RtlCompareMemory(&device_list[k].fs_uuid, &device_list[i].fs_uuid, sizeof(BTRFS_UUID)) == sizeof(BTRFS_UUID)) {
device_list[i].drive = device_list[k].drive;
break;
}
}
device_list[i].multi_device = bfs2->num_devices > 1;
break;
}
}
break;
}
if (bfs2->next_entry != 0)
bfs2 = (btrfs_filesystem*)((uint8_t*)bfs2 + bfs2->next_entry);
else
break;
}
}
name += L" (";
if (device_list[i].friendly_name != L"") {
name += device_list[i].friendly_name;
name += L", ";
}
if (device_list[i].drive != L"") {
name += device_list[i].drive;
name += L", ";
}
if (device_list[i].fstype != L"") {
name += device_list[i].fstype;
name += L", ";
}
format_size(device_list[i].size, size, false);
name += size;
name += L")";
tis.itemex.pszText = (WCHAR*)name.c_str();
tis.itemex.cchTextMax = (int)name.length();
tis.itemex.lParam = (LPARAM)&device_list[i];
item = (HTREEITEM)SendMessageW(tree, TVM_INSERTITEMW, 0, (LPARAM)&tis);
if (!item)
throw string_error(IDS_TVM_INSERTITEM_FAILED);
if (device_list[i].part_num == 0) {
diskitem = item;
last_disk_num = device_list[i].disk_num;
}
}
}
}
void BtrfsDeviceAdd::AddDevice(HWND hwndDlg) {
wstring mess, title;
NTSTATUS Status;
UNICODE_STRING vn;
OBJECT_ATTRIBUTES attr;
IO_STATUS_BLOCK iosb;
if (!sel) {
EndDialog(hwndDlg, 0);
return;
}
if (sel->fstype != L"") {
wstring s;
if (!load_string(module, IDS_ADD_DEVICE_CONFIRMATION_FS, s))
throw last_error(GetLastError());
wstring_sprintf(mess, s, sel->fstype.c_str());
} else {
if (!load_string(module, IDS_ADD_DEVICE_CONFIRMATION, mess))
throw last_error(GetLastError());
}
if (!load_string(module, IDS_CONFIRMATION_TITLE, title))
throw last_error(GetLastError());
if (MessageBoxW(hwndDlg, mess.c_str(), title.c_str(), MB_YESNO) != IDYES)
return;
win_handle h = CreateFileW(cmdline, 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());
{
nt_handle h2;
vn.Length = vn.MaximumLength = (uint16_t)(sel->pnp_name.length() * sizeof(WCHAR));
vn.Buffer = (WCHAR*)sel->pnp_name.c_str();
InitializeObjectAttributes(&attr, &vn, OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE, nullptr, nullptr);
Status = NtOpenFile(&h2, FILE_GENERIC_READ | FILE_GENERIC_WRITE, &attr, &iosb, FILE_SHARE_READ, FILE_SYNCHRONOUS_IO_ALERT);
if (!NT_SUCCESS(Status))
throw ntstatus_error(Status);
if (!sel->is_disk) {
Status = NtFsControlFile(h2, nullptr, nullptr, nullptr, &iosb, FSCTL_LOCK_VOLUME, nullptr, 0, nullptr, 0);
if (!NT_SUCCESS(Status))
throw string_error(IDS_LOCK_FAILED, Status);
}
Status = NtFsControlFile(h, nullptr, nullptr, nullptr, &iosb, FSCTL_BTRFS_ADD_DEVICE, &h2, sizeof(HANDLE), nullptr, 0);
if (!NT_SUCCESS(Status))
throw ntstatus_error(Status);
if (!sel->is_disk) {
Status = NtFsControlFile(h2, nullptr, nullptr, nullptr, &iosb, FSCTL_DISMOUNT_VOLUME, nullptr, 0, nullptr, 0);
if (!NT_SUCCESS(Status))
throw ntstatus_error(Status);
Status = NtFsControlFile(h2, nullptr, nullptr, nullptr, &iosb, FSCTL_UNLOCK_VOLUME, nullptr, 0, nullptr, 0);
if (!NT_SUCCESS(Status))
throw ntstatus_error(Status);
}
}
EndDialog(hwndDlg, 0);
}
INT_PTR CALLBACK BtrfsDeviceAdd::DeviceAddDlgProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam) {
try {
switch (uMsg) {
case WM_INITDIALOG:
{
EnableThemeDialogTexture(hwndDlg, ETDT_ENABLETAB);
populate_device_tree(GetDlgItem(hwndDlg, IDC_DEVICE_TREE));
EnableWindow(GetDlgItem(hwndDlg, IDOK), false);
break;
}
case WM_COMMAND:
switch (HIWORD(wParam)) {
case BN_CLICKED:
switch (LOWORD(wParam)) {
case IDOK:
AddDevice(hwndDlg);
return true;
case IDCANCEL:
EndDialog(hwndDlg, 0);
return true;
}
break;
}
break;
case WM_NOTIFY:
switch (((LPNMHDR)lParam)->code) {
case TVN_SELCHANGEDW:
{
NMTREEVIEWW* nmtv = (NMTREEVIEWW*)lParam;
TVITEMW tvi;
bool enable = false;
RtlZeroMemory(&tvi, sizeof(TVITEMW));
tvi.hItem = nmtv->itemNew.hItem;
tvi.mask = TVIF_PARAM | TVIF_HANDLE;
if (SendMessageW(GetDlgItem(hwndDlg, IDC_DEVICE_TREE), TVM_GETITEMW, 0, (LPARAM)&tvi))
sel = tvi.lParam == 0 ? nullptr : (device*)tvi.lParam;
else
sel = nullptr;
if (sel)
enable = (!sel->is_disk || !sel->has_parts) && !sel->multi_device;
EnableWindow(GetDlgItem(hwndDlg, IDOK), enable);
break;
}
}
break;
}
} catch (const exception& e) {
error_message(hwndDlg, e.what());
}
return false;
}
static INT_PTR CALLBACK stub_DeviceAddDlgProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam) {
BtrfsDeviceAdd* bda;
if (uMsg == WM_INITDIALOG) {
SetWindowLongPtrW(hwndDlg, GWLP_USERDATA, (LONG_PTR)lParam);
bda = (BtrfsDeviceAdd*)lParam;
} else {
bda = (BtrfsDeviceAdd*)GetWindowLongPtrW(hwndDlg, GWLP_USERDATA);
}
if (bda)
return bda->DeviceAddDlgProc(hwndDlg, uMsg, wParam, lParam);
else
return false;
}
void BtrfsDeviceAdd::ShowDialog() {
DialogBoxParamW(module, MAKEINTRESOURCEW(IDD_DEVICE_ADD), hwnd, stub_DeviceAddDlgProc, (LPARAM)this);
}
BtrfsDeviceAdd::BtrfsDeviceAdd(HINSTANCE hinst, HWND hwnd, WCHAR* cmdline) {
this->hinst = hinst;
this->hwnd = hwnd;
this->cmdline = cmdline;
sel = nullptr;
}
void BtrfsDeviceResize::do_resize(HWND hwndDlg) {
NTSTATUS Status;
IO_STATUS_BLOCK iosb;
btrfs_resize br;
{
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());
br.device = dev_id;
br.size = new_size;
Status = NtFsControlFile(h, nullptr, nullptr, nullptr, &iosb, FSCTL_BTRFS_RESIZE, &br, sizeof(btrfs_resize), nullptr, 0);
if (Status != STATUS_MORE_PROCESSING_REQUIRED && !NT_SUCCESS(Status))
throw ntstatus_error(Status);
}
if (Status != STATUS_MORE_PROCESSING_REQUIRED) {
wstring s, t, u;
load_string(module, IDS_RESIZE_SUCCESSFUL, s);
format_size(new_size, u, true);
wstring_sprintf(t, s, dev_id, u.c_str());
MessageBoxW(hwndDlg, t.c_str(), L"", MB_OK);
EndDialog(hwndDlg, 0);
} else {
HWND par;
par = GetParent(hwndDlg);
EndDialog(hwndDlg, 0);
BtrfsBalance bb(fn, false, true);
bb.ShowBalance(par);
}
}
INT_PTR CALLBACK BtrfsDeviceResize::DeviceResizeDlgProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam) {
try {
switch (uMsg) {
case WM_INITDIALOG:
{
win_handle h;
WCHAR s[255];
wstring t, u;
EnableThemeDialogTexture(hwndDlg, ETDT_ENABLETAB);
GetDlgItemTextW(hwndDlg, IDC_RESIZE_DEVICE_ID, s, sizeof(s) / sizeof(WCHAR));
wstring_sprintf(t, s, dev_id);
SetDlgItemTextW(hwndDlg, IDC_RESIZE_DEVICE_ID, t.c_str());
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;
btrfs_device *devices, *bd;
ULONG devsize;
bool found = false;
HWND slider;
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) {
devsize += 1024;
free(devices);
devices = (btrfs_device*)malloc(devsize);
} else
break;
}
if (!NT_SUCCESS(Status)) {
free(devices);
return false;
}
bd = devices;
while (true) {
if (bd->dev_id == dev_id) {
memcpy(&dev_info, bd, sizeof(btrfs_device));
found = true;
break;
}
if (bd->next_entry > 0)
bd = (btrfs_device*)((uint8_t*)bd + bd->next_entry);
else
break;
}
if (!found) {
free(devices);
return false;
}
free(devices);
GetDlgItemTextW(hwndDlg, IDC_RESIZE_CURSIZE, s, sizeof(s) / sizeof(WCHAR));
format_size(dev_info.size, u, true);
wstring_sprintf(t, s, u.c_str());
SetDlgItemTextW(hwndDlg, IDC_RESIZE_CURSIZE, t.c_str());
new_size = dev_info.size;
GetDlgItemTextW(hwndDlg, IDC_RESIZE_NEWSIZE, new_size_text, sizeof(new_size_text) / sizeof(WCHAR));
wstring_sprintf(t, new_size_text, u.c_str());
SetDlgItemTextW(hwndDlg, IDC_RESIZE_NEWSIZE, t.c_str());
slider = GetDlgItem(hwndDlg, IDC_RESIZE_SLIDER);
SendMessageW(slider, TBM_SETRANGEMIN, false, 0);
SendMessageW(slider, TBM_SETRANGEMAX, false, (LPARAM)(dev_info.max_size / 1048576));
SendMessageW(slider, TBM_SETPOS, true, (LPARAM)(new_size / 1048576));
} else
return false;
break;
}
case WM_COMMAND:
switch (HIWORD(wParam)) {
case BN_CLICKED:
switch (LOWORD(wParam)) {
case IDOK:
do_resize(hwndDlg);
return true;
case IDCANCEL:
EndDialog(hwndDlg, 0);
return true;
}
break;
}
break;
case WM_HSCROLL:
{
wstring t, u;
new_size = UInt32x32To64(SendMessageW(GetDlgItem(hwndDlg, IDC_RESIZE_SLIDER), TBM_GETPOS, 0, 0), 1048576);
format_size(new_size, u, true);
wstring_sprintf(t, new_size_text, u.c_str());
SetDlgItemTextW(hwndDlg, IDC_RESIZE_NEWSIZE, t.c_str());
EnableWindow(GetDlgItem(hwndDlg, IDOK), new_size > 0 ? true : false);
break;
}
}
} catch (const exception& e) {
error_message(hwndDlg, e.what());
}
return false;
}
static INT_PTR CALLBACK stub_DeviceResizeDlgProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam) {
BtrfsDeviceResize* bdr;
if (uMsg == WM_INITDIALOG) {
SetWindowLongPtrW(hwndDlg, GWLP_USERDATA, (LONG_PTR)lParam);
bdr = (BtrfsDeviceResize*)lParam;
} else
bdr = (BtrfsDeviceResize*)GetWindowLongPtrW(hwndDlg, GWLP_USERDATA);
if (bdr)
return bdr->DeviceResizeDlgProc(hwndDlg, uMsg, wParam, lParam);
else
return false;
}
void BtrfsDeviceResize::ShowDialog(HWND hwnd, const wstring& fn, uint64_t dev_id) {
this->dev_id = dev_id;
this->fn = fn;
DialogBoxParamW(module, MAKEINTRESOURCEW(IDD_RESIZE), hwnd, stub_DeviceResizeDlgProc, (LPARAM)this);
}
#ifdef __cplusplus
extern "C" {
#endif
void CALLBACK AddDeviceW(HWND hwnd, HINSTANCE hinst, LPWSTR lpszCmdLine, int nCmdShow) {
try {
win_handle token;
TOKEN_PRIVILEGES tp;
LUID luid;
set_dpi_aware();
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());
BtrfsDeviceAdd bda(hinst, hwnd, lpszCmdLine);
bda.ShowDialog();
} catch (const exception& e) {
error_message(hwnd, e.what());
}
}
void CALLBACK RemoveDeviceW(HWND hwnd, HINSTANCE hinst, LPWSTR lpszCmdLine, int nCmdShow) {
try {
WCHAR *s, *vol, *dev;
uint64_t devid;
win_handle h, token;
TOKEN_PRIVILEGES tp;
LUID luid;
NTSTATUS Status;
IO_STATUS_BLOCK iosb;
set_dpi_aware();
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());
s = wcsstr(lpszCmdLine, L"|");
if (!s)
return;
s[0] = 0;
vol = lpszCmdLine;
dev = &s[1];
devid = _wtoi(dev);
if (devid == 0)
return;
h = CreateFileW(vol, 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_REMOVE_DEVICE, &devid, sizeof(uint64_t), nullptr, 0);
if (!NT_SUCCESS(Status)) {
if (Status == STATUS_CANNOT_DELETE)
throw string_error(IDS_CANNOT_REMOVE_RAID);
else
throw ntstatus_error(Status);
return;
}
BtrfsBalance bb(vol, true);
bb.ShowBalance(hwnd);
} catch (const exception& e) {
error_message(hwnd, e.what());
}
}
void CALLBACK ResizeDeviceW(HWND hwnd, HINSTANCE hinst, LPWSTR lpszCmdLine, int nCmdShow) {
try {
WCHAR *s, *vol, *dev;
uint64_t devid;
win_handle token;
TOKEN_PRIVILEGES tp;
LUID luid;
set_dpi_aware();
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());
s = wcsstr(lpszCmdLine, L"|");
if (!s)
return;
s[0] = 0;
vol = lpszCmdLine;
dev = &s[1];
devid = _wtoi(dev);
if (devid == 0)
return;
BtrfsDeviceResize bdr;
bdr.ShowDialog(hwnd, vol, devid);
} catch (const exception& e) {
error_message(hwnd, e.what());
}
}
#ifdef __cplusplus
}
#endif