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reactos/dll/shellext/shellbtrfs/devices.cpp

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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"
#include "devices.h"
#include "resource.h"
#include "balance.h"
#include <stddef.h>
#include <uxtheme.h>
#include <setupapi.h>
#include <strsafe.h>
#include <mountmgr.h>
#include <algorithm>
#ifndef __REACTOS__
#include "../btrfs.h"
#else
#include <ntddstor.h>
#include <ndk/rtlfuncs.h>
#include <ndk/obfuncs.h>
#include "btrfs.h"
#endif
DEFINE_GUID(GUID_DEVINTERFACE_HIDDEN_VOLUME, 0x7f108a28L, 0x9833, 0x4b3b, 0xb7, 0x80, 0x2c, 0x6b, 0x5f, 0xa5, 0xc0, 0x62);
static std::wstring get_mountdev_name(HANDLE h) {
NTSTATUS Status;
IO_STATUS_BLOCK iosb;
MOUNTDEV_NAME mdn, *mdn2;
ULONG mdnsize;
std::wstring name;
Status = NtDeviceIoControlFile(h, NULL, NULL, NULL, &iosb, IOCTL_MOUNTDEV_QUERY_DEVICE_NAME,
NULL, 0, &mdn, sizeof(MOUNTDEV_NAME));
if (!NT_SUCCESS(Status) && Status != STATUS_BUFFER_OVERFLOW)
return L"";
mdnsize = offsetof(MOUNTDEV_NAME, Name[0]) + mdn.NameLength;
mdn2 = (MOUNTDEV_NAME*)malloc(mdnsize);
Status = NtDeviceIoControlFile(h, NULL, NULL, NULL, &iosb, IOCTL_MOUNTDEV_QUERY_DEVICE_NAME,
NULL, 0, mdn2, mdnsize);
if (!NT_SUCCESS(Status)) {
free(mdn2);
return L"";
}
name = std::wstring(mdn2->Name, mdn2->NameLength / sizeof(WCHAR));
free(mdn2);
return name;
}
static void find_devices(HWND hwnd, const GUID* guid, HANDLE mountmgr, std::vector<device>* device_list) {
HDEVINFO h;
static WCHAR dosdevices[] = L"\\DosDevices\\";
h = SetupDiGetClassDevs(guid, NULL, 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, NULL, 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, NULL, 0, &size, NULL);
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;
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 sb[4096];
path.Buffer = detail->DevicePath;
path.Length = path.MaximumLength = 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, NULL, NULL);
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))
goto nextitem2;
dev.pnp_name = detail->DevicePath;
Status = NtDeviceIoControlFile(file, NULL, NULL, NULL, &iosb, IOCTL_DISK_GET_LENGTH_INFO, NULL, 0, &gli, sizeof(GET_LENGTH_INFORMATION));
if (!NT_SUCCESS(Status))
goto nextitem;
dev.size = gli.Length.QuadPart;
Status = NtDeviceIoControlFile(file, NULL, NULL, NULL, &iosb, IOCTL_STORAGE_GET_DEVICE_NUMBER, NULL, 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, NULL, NULL, NULL, &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, NULL, NULL, NULL, &iosb, IOCTL_STORAGE_QUERY_PROPERTY,
&spq, sizeof(STORAGE_PROPERTY_QUERY), sdd2, sdd.Size);
if (NT_SUCCESS(Status)) {
std::string desc2;
desc2 = "";
if (sdd2->VendorIdOffset != 0) {
desc2 += (char*)((UINT8*)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*)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, NULL, 0);
if (ss > 0) {
WCHAR* desc3 = (WCHAR*)malloc(ss * sizeof(WCHAR));
if (MultiByteToWideChar(CP_OEMCP, MB_PRECOMPOSED, desc2.c_str(), -1, desc3, ss * sizeof(WCHAR)))
dev.friendly_name = desc3;
free(desc3);
}
}
}
free(sdd2);
}
dlisize = 0;
dli = NULL;
do {
dlisize += 1024;
if (dli)
free(dli);
dli = (DRIVE_LAYOUT_INFORMATION_EX*)malloc(dlisize);
Status = NtDeviceIoControlFile(file, NULL, NULL, NULL, &iosb, IOCTL_DISK_GET_DRIVE_LAYOUT_EX,
NULL, 0, dli, dlisize);
} while (Status == STATUS_BUFFER_TOO_SMALL);
if (NT_SUCCESS(Status) && dli->PartitionCount > 0)
dev.has_parts = TRUE;
free(dli);
} else {
ULONG mmpsize;
MOUNTMGR_MOUNT_POINT* mmp;
MOUNTMGR_MOUNT_POINTS mmps;
mmpsize = sizeof(MOUNTMGR_MOUNT_POINT) + path.Length;
mmp = (MOUNTMGR_MOUNT_POINT*)malloc(mmpsize);
RtlZeroMemory(mmp, sizeof(MOUNTMGR_MOUNT_POINT));
mmp->DeviceNameOffset = sizeof(MOUNTMGR_MOUNT_POINT);
mmp->DeviceNameLength = path.Length;
RtlCopyMemory(&mmp[1], path.Buffer, path.Length);
Status = NtDeviceIoControlFile(mountmgr, NULL, NULL, NULL, &iosb, IOCTL_MOUNTMGR_QUERY_POINTS,
mmp, mmpsize, &mmps, sizeof(MOUNTMGR_MOUNT_POINTS));
if (NT_SUCCESS(Status) || Status == STATUS_BUFFER_OVERFLOW) {
MOUNTMGR_MOUNT_POINTS* mmps2;
mmps2 = (MOUNTMGR_MOUNT_POINTS*)malloc(mmps.Size);
Status = NtDeviceIoControlFile(mountmgr, NULL, NULL, NULL, &iosb, IOCTL_MOUNTMGR_QUERY_POINTS,
mmp, mmpsize, mmps2, mmps.Size);
if (NT_SUCCESS(Status)) {
ULONG i;
for (i = 0; i < mmps2->NumberOfMountPoints; i++) {
WCHAR* symlink = (WCHAR*)((UINT8*)mmps2 + mmps2->MountPoints[i].SymbolicLinkNameOffset);
if (mmps2->MountPoints[i].SymbolicLinkNameLength == 0x1c &&
RtlCompareMemory(symlink, dosdevices, wcslen(dosdevices) * sizeof(WCHAR)) == wcslen(dosdevices) * sizeof(WCHAR) &&
symlink[13] == ':'
) {
WCHAR dr[3];
dr[0] = symlink[12];
dr[1] = ':';
dr[2] = 0;
dev.drive = dr;
break;
}
}
}
}
free(mmp);
}
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, NULL, NULL, NULL, &iosb, sb, sizeof(sb), &off, NULL);
}
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)) {
std::wstring name;
std::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);
nextitem:
NtClose(file);
}
nextitem2:
free(detail);
index++;
} while (SetupDiEnumDeviceInterfaces(h, NULL, guid, index, &did));
SetupDiDestroyDeviceInfoList(h);
} else {
ShowError(hwnd, GetLastError());
return;
}
}
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;
}
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;
HANDLE mountmgr, btrfsh;
btrfs_filesystem* bfs = NULL;
static WCHAR btrfs[] = L"\\Btrfs";
device_list.clear();
RtlInitUnicodeString(&us, MOUNTMGR_DEVICE_NAME);
InitializeObjectAttributes(&attr, &us, 0, NULL, NULL);
Status = NtOpenFile(&mountmgr, FILE_GENERIC_READ | FILE_GENERIC_WRITE, &attr, &iosb,
FILE_SHARE_READ, FILE_SYNCHRONOUS_IO_ALERT);
if (!NT_SUCCESS(Status)) {
MessageBoxW(hwnd, L"Could not get handle to mount manager.", L"Error", MB_ICONERROR);
return;
}
us.Length = us.MaximumLength = wcslen(btrfs) * sizeof(WCHAR);
us.Buffer = btrfs;
InitializeObjectAttributes(&attr, &us, 0, NULL, NULL);
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, NULL, NULL, NULL, &iosb, IOCTL_BTRFS_QUERY_FILESYSTEMS, NULL, 0, bfs, bfssize);
if (!NT_SUCCESS(Status) && Status != STATUS_BUFFER_OVERFLOW) {
free(bfs);
bfs = NULL;
break;
}
} while (Status == STATUS_BUFFER_OVERFLOW);
if (bfs && bfs->num_devices == 0) { // no mounted filesystems found
free(bfs);
bfs = NULL;
}
}
NtClose(btrfsh);
find_devices(hwnd, &GUID_DEVINTERFACE_DISK, mountmgr, &device_list);
find_devices(hwnd, &GUID_DEVINTERFACE_VOLUME, mountmgr, &device_list);
find_devices(hwnd, &GUID_DEVINTERFACE_HIDDEN_VOLUME, mountmgr, &device_list);
NtClose(mountmgr);
std::sort(device_list.begin(), device_list.end(), sort_devices);
for (i = 0; i < device_list.size(); i++) {
if (!device_list[i].ignore) {
TVINSERTSTRUCTW tis;
HTREEITEM item;
std::wstring name;
WCHAR size[255];
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) {
WCHAR t[255], u[255];
if (!LoadStringW(module, device_list[i].part_num != 0 ? IDS_PARTITION : IDS_DISK_NUM, t, sizeof(t) / sizeof(WCHAR))) {
ShowError(hwnd, GetLastError());
return;
}
if (StringCchPrintfW(u, sizeof(u) / sizeof(WCHAR), t, device_list[i].part_num != 0 ? device_list[i].part_num : device_list[i].disk_num) == STRSAFE_E_INSUFFICIENT_BUFFER)
return;
name = u;
} 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*)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*)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, sizeof(size) / sizeof(WCHAR), FALSE);
name += size;
name += L")";
tis.itemex.pszText = (WCHAR*)name.c_str();
tis.itemex.cchTextMax = name.length();
tis.itemex.lParam = (LPARAM)&device_list[i];
item = (HTREEITEM)SendMessageW(tree, TVM_INSERTITEMW, 0, (LPARAM)&tis);
if (!item) {
MessageBoxW(hwnd, L"TVM_INSERTITEM failed", L"Error", MB_ICONERROR);
return;
}
if (device_list[i].part_num == 0) {
diskitem = item;
last_disk_num = device_list[i].disk_num;
}
}
}
}
void BtrfsDeviceAdd::AddDevice(HWND hwndDlg) {
WCHAR mess[255], title[255];
NTSTATUS Status;
UNICODE_STRING vn;
OBJECT_ATTRIBUTES attr;
IO_STATUS_BLOCK iosb;
HANDLE h, h2;
if (!sel) {
EndDialog(hwndDlg, 0);
return;
}
if (sel->fstype != L"") {
WCHAR s[255];
if (!LoadStringW(module, IDS_ADD_DEVICE_CONFIRMATION_FS, s, sizeof(s) / sizeof(WCHAR))) {
ShowError(hwndDlg, GetLastError());
return;
}
if (StringCchPrintfW(mess, sizeof(mess) / sizeof(WCHAR), s, sel->fstype.c_str()) == STRSAFE_E_INSUFFICIENT_BUFFER)
return;
} else {
if (!LoadStringW(module, IDS_ADD_DEVICE_CONFIRMATION, mess, sizeof(mess) / sizeof(WCHAR))) {
ShowError(hwndDlg, GetLastError());
return;
}
}
if (!LoadStringW(module, IDS_CONFIRMATION_TITLE, title, sizeof(title) / sizeof(WCHAR))) {
ShowError(hwndDlg, GetLastError());
return;
}
if (MessageBoxW(hwndDlg, mess, title, MB_YESNO) != IDYES)
return;
h = CreateFileW(cmdline, FILE_TRAVERSE | FILE_READ_ATTRIBUTES, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, NULL,
OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT, NULL);
if (h == INVALID_HANDLE_VALUE) {
ShowError(hwndDlg, GetLastError());
return;
}
vn.Length = vn.MaximumLength = sel->pnp_name.length() * sizeof(WCHAR);
vn.Buffer = (WCHAR*)sel->pnp_name.c_str();
InitializeObjectAttributes(&attr, &vn, OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE, NULL, NULL);
Status = NtOpenFile(&h2, FILE_GENERIC_READ | FILE_GENERIC_WRITE, &attr, &iosb, FILE_SHARE_READ, FILE_SYNCHRONOUS_IO_ALERT);
if (!NT_SUCCESS(Status)) {
ShowNtStatusError(hwndDlg, Status);
CloseHandle(h);
return;
}
if (!sel->is_disk) {
Status = NtFsControlFile(h2, NULL, NULL, NULL, &iosb, FSCTL_LOCK_VOLUME, NULL, 0, NULL, 0);
if (!NT_SUCCESS(Status)) {
WCHAR t[255], u[255];
if (!LoadStringW(module, IDS_LOCK_FAILED, t, sizeof(t) / sizeof(WCHAR))) {
ShowError(hwnd, GetLastError());
return;
}
if (StringCchPrintfW(u, sizeof(u) / sizeof(WCHAR), t, Status) == STRSAFE_E_INSUFFICIENT_BUFFER)
return;
if (!LoadStringW(module, IDS_ERROR, title, sizeof(title) / sizeof(WCHAR))) {
ShowError(hwndDlg, GetLastError());
return;
}
MessageBoxW(hwndDlg, u, title, MB_ICONERROR);
NtClose(h2);
CloseHandle(h);
return;
}
}
Status = NtFsControlFile(h, NULL, NULL, NULL, &iosb, FSCTL_BTRFS_ADD_DEVICE, &h2, sizeof(HANDLE), NULL, 0);
if (!NT_SUCCESS(Status)) {
ShowNtStatusError(hwndDlg, Status);
NtClose(h2);
CloseHandle(h);
return;
}
if (!sel->is_disk) {
Status = NtFsControlFile(h2, NULL, NULL, NULL, &iosb, FSCTL_DISMOUNT_VOLUME, NULL, 0, NULL, 0);
if (!NT_SUCCESS(Status))
ShowNtStatusError(hwndDlg, Status);
Status = NtFsControlFile(h2, NULL, NULL, NULL, &iosb, FSCTL_UNLOCK_VOLUME, NULL, 0, NULL, 0);
if (!NT_SUCCESS(Status))
ShowNtStatusError(hwndDlg, Status);
}
NtClose(h2);
CloseHandle(h);
EndDialog(hwndDlg, 0);
}
INT_PTR CALLBACK BtrfsDeviceAdd::DeviceAddDlgProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam) {
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 ? NULL : (device*)tvi.lParam;
else
sel = NULL;
if (sel)
enable = (!sel->is_disk || !sel->has_parts) && !sel->multi_device;
EnableWindow(GetDlgItem(hwndDlg, IDOK), enable);
break;
}
}
break;
}
return FALSE;
}
static INT_PTR CALLBACK stub_DeviceAddDlgProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam) {
BtrfsDeviceAdd* bda;
if (uMsg == WM_INITDIALOG) {
SetWindowLongPtr(hwndDlg, GWLP_USERDATA, (LONG_PTR)lParam);
bda = (BtrfsDeviceAdd*)lParam;
} else {
bda = (BtrfsDeviceAdd*)GetWindowLongPtr(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 = NULL;
}
void BtrfsDeviceResize::do_resize(HWND hwndDlg) {
HANDLE h;
NTSTATUS Status;
IO_STATUS_BLOCK iosb;
btrfs_resize br;
h = CreateFileW(fn, FILE_TRAVERSE | FILE_READ_ATTRIBUTES, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, NULL,
OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT, NULL);
if (h == INVALID_HANDLE_VALUE) {
ShowError(hwndDlg, GetLastError());
return;
}
br.device = dev_id;
br.size = new_size;
Status = NtFsControlFile(h, NULL, NULL, NULL, &iosb, FSCTL_BTRFS_RESIZE, &br, sizeof(btrfs_resize), NULL, 0);
if (Status != STATUS_MORE_PROCESSING_REQUIRED && !NT_SUCCESS(Status)) {
ShowNtStatusError(hwndDlg, Status);
CloseHandle(h);
return;
}
CloseHandle(h);
if (Status != STATUS_MORE_PROCESSING_REQUIRED) {
WCHAR s[255], t[255], u[255];
LoadStringW(module, IDS_RESIZE_SUCCESSFUL, s, sizeof(s) / sizeof(WCHAR));
format_size(new_size, u, sizeof(u) / sizeof(WCHAR), TRUE);
StringCchPrintfW(t, sizeof(t) / sizeof(WCHAR), s, dev_id, u);
MessageBoxW(hwndDlg, t, L"", MB_OK);
EndDialog(hwndDlg, 0);
} else {
BtrfsBalance* bb;
HWND par;
par = GetParent(hwndDlg);
EndDialog(hwndDlg, 0);
bb = new BtrfsBalance(fn, FALSE, TRUE);
bb->ShowBalance(par);
delete bb;
}
}
INT_PTR CALLBACK BtrfsDeviceResize::DeviceResizeDlgProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam) {
switch (uMsg) {
case WM_INITDIALOG:
{
HANDLE h;
WCHAR s[255], t[255], u[255];
EnableThemeDialogTexture(hwndDlg, ETDT_ENABLETAB);
GetDlgItemTextW(hwndDlg, IDC_RESIZE_DEVICE_ID, s, sizeof(s) / sizeof(WCHAR));
StringCchPrintfW(t, sizeof(t) / sizeof(WCHAR), s, dev_id);
SetDlgItemTextW(hwndDlg, IDC_RESIZE_DEVICE_ID, t);
h = CreateFileW(fn, FILE_TRAVERSE | FILE_READ_ATTRIBUTES, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, NULL,
OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT, NULL);
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, NULL, NULL, NULL, &iosb, FSCTL_BTRFS_GET_DEVICES, NULL, 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);
CloseHandle(h);
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*)bd + bd->next_entry);
else
break;
}
if (!found) {
free(devices);
CloseHandle(h);
return FALSE;
}
free(devices);
CloseHandle(h);
GetDlgItemTextW(hwndDlg, IDC_RESIZE_CURSIZE, s, sizeof(s) / sizeof(WCHAR));
format_size(dev_info.size, u, sizeof(u) / sizeof(WCHAR), TRUE);
StringCchPrintfW(t, sizeof(t) / sizeof(WCHAR), s, u);
SetDlgItemTextW(hwndDlg, IDC_RESIZE_CURSIZE, t);
new_size = dev_info.size;
GetDlgItemTextW(hwndDlg, IDC_RESIZE_NEWSIZE, new_size_text, sizeof(new_size_text) / sizeof(WCHAR));
StringCchPrintfW(t, sizeof(t) / sizeof(WCHAR), new_size_text, u);
SetDlgItemTextW(hwndDlg, IDC_RESIZE_NEWSIZE, t);
slider = GetDlgItem(hwndDlg, IDC_RESIZE_SLIDER);
SendMessageW(slider, TBM_SETRANGEMIN, FALSE, 0);
SendMessageW(slider, TBM_SETRANGEMAX, FALSE, dev_info.max_size / 1048576);
SendMessageW(slider, TBM_SETPOS, TRUE, 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:
{
WCHAR t[255], u[255];
new_size = UInt32x32To64(SendMessageW(GetDlgItem(hwndDlg, IDC_RESIZE_SLIDER), TBM_GETPOS, 0, 0), 1048576);
format_size(new_size, u, sizeof(u) / sizeof(WCHAR), TRUE);
StringCchPrintfW(t, sizeof(t) / sizeof(WCHAR), new_size_text, u);
SetDlgItemTextW(hwndDlg, IDC_RESIZE_NEWSIZE, t);
EnableWindow(GetDlgItem(hwndDlg, IDOK), new_size > 0 ? TRUE : FALSE);
break;
}
}
return FALSE;
}
static INT_PTR CALLBACK stub_DeviceResizeDlgProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam) {
BtrfsDeviceResize* bdr;
if (uMsg == WM_INITDIALOG) {
SetWindowLongPtr(hwndDlg, GWLP_USERDATA, (LONG_PTR)lParam);
bdr = (BtrfsDeviceResize*)lParam;
} else
bdr = (BtrfsDeviceResize*)GetWindowLongPtr(hwndDlg, GWLP_USERDATA);
if (bdr)
return bdr->DeviceResizeDlgProc(hwndDlg, uMsg, wParam, lParam);
else
return FALSE;
}
void BtrfsDeviceResize::ShowDialog(HWND hwnd, WCHAR* fn, UINT64 dev_id) {
this->dev_id = dev_id;
wcscpy(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) {
HANDLE token;
TOKEN_PRIVILEGES tp;
LUID luid;
BtrfsDeviceAdd* bda;
set_dpi_aware();
if (!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &token)) {
ShowError(hwnd, GetLastError());
return;
}
if (!LookupPrivilegeValueW(NULL, L"SeManageVolumePrivilege", &luid)) {
ShowError(hwnd, GetLastError());
goto end;
}
tp.PrivilegeCount = 1;
tp.Privileges[0].Luid = luid;
tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
if (!AdjustTokenPrivileges(token, FALSE, &tp, sizeof(TOKEN_PRIVILEGES), NULL, NULL)) {
ShowError(hwnd, GetLastError());
goto end;
}
bda = new BtrfsDeviceAdd(hinst, hwnd, lpszCmdLine);
bda->ShowDialog();
delete bda;
end:
CloseHandle(token);
}
void CALLBACK RemoveDeviceW(HWND hwnd, HINSTANCE hinst, LPWSTR lpszCmdLine, int nCmdShow) {
WCHAR *s, *vol, *dev;
UINT64 devid;
HANDLE h, token;
TOKEN_PRIVILEGES tp;
LUID luid;
NTSTATUS Status;
IO_STATUS_BLOCK iosb;
BtrfsBalance* bb;
set_dpi_aware();
if (!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &token)) {
ShowError(hwnd, GetLastError());
return;
}
if (!LookupPrivilegeValueW(NULL, L"SeManageVolumePrivilege", &luid)) {
ShowError(hwnd, GetLastError());
goto end;
}
tp.PrivilegeCount = 1;
tp.Privileges[0].Luid = luid;
tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
if (!AdjustTokenPrivileges(token, FALSE, &tp, sizeof(TOKEN_PRIVILEGES), NULL, NULL)) {
ShowError(hwnd, GetLastError());
goto end;
}
s = wcsstr(lpszCmdLine, L"|");
if (!s)
goto end;
s[0] = 0;
vol = lpszCmdLine;
dev = &s[1];
devid = _wtoi(dev);
if (devid == 0)
goto end;
h = CreateFileW(vol, FILE_TRAVERSE | FILE_READ_ATTRIBUTES, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, NULL,
OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT, NULL);
if (h == INVALID_HANDLE_VALUE) {
ShowError(hwnd, GetLastError());
goto end;
}
Status = NtFsControlFile(h, NULL, NULL, NULL, &iosb, FSCTL_BTRFS_REMOVE_DEVICE, &devid, sizeof(UINT64), NULL, 0);
if (!NT_SUCCESS(Status)) {
if (Status == STATUS_CANNOT_DELETE)
ShowStringError(hwnd, IDS_CANNOT_REMOVE_RAID);
else
ShowNtStatusError(hwnd, Status);
CloseHandle(h);
goto end;
}
CloseHandle(h);
bb = new BtrfsBalance(vol, TRUE);
bb->ShowBalance(hwnd);
delete bb;
end:
CloseHandle(token);
}
void CALLBACK ResizeDeviceW(HWND hwnd, HINSTANCE hinst, LPWSTR lpszCmdLine, int nCmdShow) {
WCHAR *s, *vol, *dev;
UINT64 devid;
HANDLE token;
TOKEN_PRIVILEGES tp;
LUID luid;
BtrfsDeviceResize* bdr;
set_dpi_aware();
if (!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &token)) {
ShowError(hwnd, GetLastError());
return;
}
if (!LookupPrivilegeValueW(NULL, L"SeManageVolumePrivilege", &luid)) {
ShowError(hwnd, GetLastError());
goto end;
}
tp.PrivilegeCount = 1;
tp.Privileges[0].Luid = luid;
tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
if (!AdjustTokenPrivileges(token, FALSE, &tp, sizeof(TOKEN_PRIVILEGES), NULL, NULL)) {
ShowError(hwnd, GetLastError());
goto end;
}
s = wcsstr(lpszCmdLine, L"|");
if (!s)
goto end;
s[0] = 0;
vol = lpszCmdLine;
dev = &s[1];
devid = _wtoi(dev);
if (devid == 0)
goto end;
bdr = new BtrfsDeviceResize;
bdr->ShowDialog(hwnd, vol, devid);
delete bdr;
end:
CloseHandle(token);
}
#ifdef __cplusplus
}
#endif
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