static VOID PhpAddAccountsToComboBox(
_In_ HWND ComboBoxHandle
)
{
LSA_HANDLE policyHandle;
LSA_ENUMERATION_HANDLE enumerationContext = 0;
PLSA_ENUMERATION_INFORMATION buffer;
ULONG count;
ULONG i;
PPH_STRING name;
SID_NAME_USE nameUse;
if (NT_SUCCESS(PhOpenLsaPolicy(&policyHandle, POLICY_VIEW_LOCAL_INFORMATION, NULL)))
{
while (NT_SUCCESS(LsaEnumerateAccounts(
policyHandle,
&enumerationContext,
&buffer,
0x100,
&count
)))
{
for (i = 0; i < count; i++)
{
name = PhGetSidFullName(buffer[i].Sid, TRUE, &nameUse);
if (name)
{
if (nameUse == SidTypeUser)
ComboBox_AddString(ComboBoxHandle, name->Buffer);
PhDereferenceObject(name);
}
}
LsaFreeMemory(buffer);
}
LsaClose(policyHandle);
}
}
INT_PTR CALLBACK EspServiceOtherDlgProc(
_In_ HWND hwndDlg,
_In_ UINT uMsg,
_In_ WPARAM wParam,
_In_ LPARAM lParam
)
{
PSERVICE_OTHER_CONTEXT context;
if (uMsg == WM_INITDIALOG)
{
context = PhAllocate(sizeof(SERVICE_OTHER_CONTEXT));
memset(context, 0, sizeof(SERVICE_OTHER_CONTEXT));
SetProp(hwndDlg, L"Context", (HANDLE)context);
}
else
{
context = (PSERVICE_OTHER_CONTEXT)GetProp(hwndDlg, L"Context");
if (uMsg == WM_DESTROY)
RemoveProp(hwndDlg, L"Context");
}
if (!context)
return FALSE;
switch (uMsg)
{
case WM_INITDIALOG:
{
NTSTATUS status;
LPPROPSHEETPAGE propSheetPage = (LPPROPSHEETPAGE)lParam;
PPH_SERVICE_ITEM serviceItem = (PPH_SERVICE_ITEM)propSheetPage->lParam;
HWND privilegesLv;
context->ServiceItem = serviceItem;
context->PrivilegesLv = privilegesLv = GetDlgItem(hwndDlg, IDC_PRIVILEGES);
PhSetListViewStyle(privilegesLv, FALSE, TRUE);
PhSetControlTheme(privilegesLv, L"explorer");
PhAddListViewColumn(privilegesLv, 0, 0, 0, LVCFMT_LEFT, 140, L"Name");
PhAddListViewColumn(privilegesLv, 1, 1, 1, LVCFMT_LEFT, 220, L"Display Name");
PhSetExtendedListView(privilegesLv);
context->PrivilegeList = PhCreateList(32);
if (context->ServiceItem->Type == SERVICE_KERNEL_DRIVER || context->ServiceItem->Type == SERVICE_FILE_SYSTEM_DRIVER)
{
// Drivers don't support required privileges.
EnableWindow(GetDlgItem(hwndDlg, IDC_ADD), FALSE);
}
EnableWindow(GetDlgItem(hwndDlg, IDC_REMOVE), FALSE);
PhAddComboBoxStrings(GetDlgItem(hwndDlg, IDC_SIDTYPE),
EspServiceSidTypeStrings, sizeof(EspServiceSidTypeStrings) / sizeof(PWSTR));
PhAddComboBoxStrings(GetDlgItem(hwndDlg, IDC_PROTECTION),
EspServiceLaunchProtectedStrings, sizeof(EspServiceLaunchProtectedStrings) / sizeof(PWSTR));
if (WindowsVersion < WINDOWS_8_1)
EnableWindow(GetDlgItem(hwndDlg, IDC_PROTECTION), FALSE);
SetDlgItemText(hwndDlg, IDC_SERVICESID,
PhGetStringOrDefault(PH_AUTO(EspGetServiceSidString(&serviceItem->Name->sr)), L"N/A"));
status = EspLoadOtherInfo(hwndDlg, context);
if (!NT_SUCCESS(status))
{
PhShowWarning(hwndDlg, L"Unable to query service information: %s",
((PPH_STRING)PH_AUTO(PhGetNtMessage(status)))->Buffer);
}
context->Ready = TRUE;
}
break;
case WM_DESTROY:
{
if (context->PrivilegeList)
{
PhDereferenceObjects(context->PrivilegeList->Items, context->PrivilegeList->Count);
PhDereferenceObject(context->PrivilegeList);
}
PhFree(context);
}
break;
case WM_COMMAND:
{
switch (LOWORD(wParam))
{
case IDC_ADD:
{
NTSTATUS status;
LSA_HANDLE policyHandle;
LSA_ENUMERATION_HANDLE enumContext;
PPOLICY_PRIVILEGE_DEFINITION buffer;
ULONG count;
ULONG i;
PPH_LIST choices;
PPH_STRING selectedChoice = NULL;
choices = PH_AUTO(PhCreateList(100));
if (!NT_SUCCESS(status = PhOpenLsaPolicy(&policyHandle, POLICY_VIEW_LOCAL_INFORMATION, NULL)))
{
PhShowStatus(hwndDlg, L"Unable to open LSA policy", status, 0);
break;
}
enumContext = 0;
while (TRUE)
{
status = LsaEnumeratePrivileges(
policyHandle,
&enumContext,
&buffer,
0x100,
&count
);
if (status == STATUS_NO_MORE_ENTRIES)
break;
if (!NT_SUCCESS(status))
break;
for (i = 0; i < count; i++)
{
PhAddItemList(choices, PhaCreateStringEx(buffer[i].Name.Buffer, buffer[i].Name.Length)->Buffer);
}
LsaFreeMemory(buffer);
}
LsaClose(policyHandle);
qsort(choices->Items, choices->Count, sizeof(PWSTR), PrivilegeNameCompareFunction);
while (PhaChoiceDialog(
hwndDlg,
L"Add privilege",
L"Select a privilege to add:",
(PWSTR *)choices->Items,
choices->Count,
NULL,
PH_CHOICE_DIALOG_CHOICE,
&selectedChoice,
NULL,
NULL
))
{
BOOLEAN found = FALSE;
PPH_STRING privilegeString;
INT lvItemIndex;
PPH_STRING displayName;
// Check for duplicates.
for (i = 0; i < context->PrivilegeList->Count; i++)
{
if (PhEqualString(context->PrivilegeList->Items[i], selectedChoice, FALSE))
{
found = TRUE;
break;
}
}
if (found)
{
if (PhShowMessage(
hwndDlg,
MB_OKCANCEL | MB_ICONERROR,
L"The selected privilege has already been added."
) == IDOK)
{
continue;
}
else
{
break;
}
}
PhSetReference(&privilegeString, selectedChoice);
PhAddItemList(context->PrivilegeList, privilegeString);
lvItemIndex = PhAddListViewItem(context->PrivilegesLv, MAXINT, privilegeString->Buffer, privilegeString);
if (PhLookupPrivilegeDisplayName(&privilegeString->sr, &displayName))
{
PhSetListViewSubItem(context->PrivilegesLv, lvItemIndex, 1, displayName->Buffer);
PhDereferenceObject(displayName);
}
ExtendedListView_SortItems(context->PrivilegesLv);
context->Dirty = TRUE;
context->RequiredPrivilegesValid = TRUE;
break;
}
}
break;
case IDC_REMOVE:
{
INT lvItemIndex;
PPH_STRING privilegeString;
ULONG index;
lvItemIndex = ListView_GetNextItem(context->PrivilegesLv, -1, LVNI_SELECTED);
if (lvItemIndex != -1 && PhGetListViewItemParam(context->PrivilegesLv, lvItemIndex, (PVOID *)&privilegeString))
{
index = PhFindItemList(context->PrivilegeList, privilegeString);
if (index != -1)
{
PhDereferenceObject(privilegeString);
PhRemoveItemList(context->PrivilegeList, index);
PhRemoveListViewItem(context->PrivilegesLv, lvItemIndex);
context->Dirty = TRUE;
context->RequiredPrivilegesValid = TRUE;
}
}
}
break;
}
switch (HIWORD(wParam))
{
case EN_CHANGE:
case CBN_SELCHANGE:
{
if (context->Ready)
{
context->Dirty = TRUE;
switch (LOWORD(wParam))
{
case IDC_PRESHUTDOWNTIMEOUT:
context->PreshutdownTimeoutValid = TRUE;
break;
case IDC_SIDTYPE:
context->SidTypeValid = TRUE;
break;
case IDC_PROTECTION:
context->LaunchProtectedValid = TRUE;
break;
}
}
}
break;
}
}
break;
case WM_NOTIFY:
{
LPNMHDR header = (LPNMHDR)lParam;
switch (header->code)
{
case PSN_KILLACTIVE:
{
SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT, FALSE);
}
return TRUE;
case PSN_APPLY:
{
SC_HANDLE serviceHandle = NULL;
ULONG win32Result = 0;
BOOLEAN connectedToPhSvc = FALSE;
PPH_STRING launchProtectedString;
ULONG launchProtected;
SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT, PSNRET_NOERROR);
launchProtectedString = PH_AUTO(PhGetWindowText(GetDlgItem(hwndDlg, IDC_PROTECTION)));
launchProtected = EspGetServiceLaunchProtectedInteger(launchProtectedString->Buffer);
if (context->LaunchProtectedValid && launchProtected != 0 && launchProtected != context->OriginalLaunchProtected)
{
if (PhShowMessage(
hwndDlg,
MB_ICONWARNING | MB_YESNO | MB_DEFBUTTON2,
L"Setting service protection will prevent the service from being controlled, modified, or deleted. Do you want to continue?"
) == IDNO)
{
SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT, PSNRET_INVALID);
return TRUE;
}
}
if (context->Dirty)
{
SERVICE_PRESHUTDOWN_INFO preshutdownInfo;
SERVICE_REQUIRED_PRIVILEGES_INFO requiredPrivilegesInfo;
SERVICE_SID_INFO sidInfo;
SERVICE_LAUNCH_PROTECTED_INFO launchProtectedInfo;
if (!(serviceHandle = PhOpenService(context->ServiceItem->Name->Buffer, SERVICE_CHANGE_CONFIG)))
{
win32Result = GetLastError();
if (win32Result == ERROR_ACCESS_DENIED && !PhElevated)
{
// Elevate using phsvc.
if (PhUiConnectToPhSvc(hwndDlg, FALSE))
{
win32Result = 0;
connectedToPhSvc = TRUE;
}
else
{
// User cancelled elevation.
win32Result = ERROR_CANCELLED;
goto Done;
}
}
else
{
goto Done;
}
}
if (context->PreshutdownTimeoutValid)
{
preshutdownInfo.dwPreshutdownTimeout = GetDlgItemInt(hwndDlg, IDC_PRESHUTDOWNTIMEOUT, NULL, FALSE);
if (!EspChangeServiceConfig2(context->ServiceItem->Name->Buffer, serviceHandle,
SERVICE_CONFIG_PRESHUTDOWN_INFO, &preshutdownInfo))
{
win32Result = GetLastError();
}
}
if (context->RequiredPrivilegesValid)
{
PH_STRING_BUILDER sb;
ULONG i;
PhInitializeStringBuilder(&sb, 100);
for (i = 0; i < context->PrivilegeList->Count; i++)
{
PhAppendStringBuilder(&sb, &((PPH_STRING)context->PrivilegeList->Items[i])->sr);
PhAppendCharStringBuilder(&sb, 0);
}
requiredPrivilegesInfo.pmszRequiredPrivileges = sb.String->Buffer;
if (win32Result == 0 && !EspChangeServiceConfig2(context->ServiceItem->Name->Buffer, serviceHandle,
SERVICE_CONFIG_REQUIRED_PRIVILEGES_INFO, &requiredPrivilegesInfo))
{
win32Result = GetLastError();
}
PhDeleteStringBuilder(&sb);
}
if (context->SidTypeValid)
{
PPH_STRING sidTypeString;
sidTypeString = PH_AUTO(PhGetWindowText(GetDlgItem(hwndDlg, IDC_SIDTYPE)));
sidInfo.dwServiceSidType = EspGetServiceSidTypeInteger(sidTypeString->Buffer);
if (win32Result == 0 && !EspChangeServiceConfig2(context->ServiceItem->Name->Buffer, serviceHandle,
SERVICE_CONFIG_SERVICE_SID_INFO, &sidInfo))
{
win32Result = GetLastError();
}
}
if (context->LaunchProtectedValid)
{
launchProtectedInfo.dwLaunchProtected = launchProtected;
if (!EspChangeServiceConfig2(context->ServiceItem->Name->Buffer, serviceHandle,
SERVICE_CONFIG_LAUNCH_PROTECTED, &launchProtectedInfo))
{
// For now, ignore errors here.
// win32Result = GetLastError();
}
}
Done:
if (connectedToPhSvc)
PhUiDisconnectFromPhSvc();
if (serviceHandle)
CloseServiceHandle(serviceHandle);
if (win32Result != 0)
{
if (win32Result == ERROR_CANCELLED || PhShowMessage(
hwndDlg,
MB_ICONERROR | MB_RETRYCANCEL,
L"Unable to change service information: %s",
((PPH_STRING)PH_AUTO(PhGetWin32Message(win32Result)))->Buffer
) == IDRETRY)
{
SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT, PSNRET_INVALID);
}
}
}
return TRUE;
}
break;
case LVN_ITEMCHANGED:
{
if (header->hwndFrom == context->PrivilegesLv)
{
EnableWindow(GetDlgItem(hwndDlg, IDC_REMOVE), ListView_GetSelectedCount(context->PrivilegesLv) == 1);
}
}
break;
}
}
break;
}
return FALSE;
}
