private Win32ServiceControlHandle CreateService(
Win32ServiceControlHandle serviceControlManagerHandle,
string name,
string executablePath,
NetworkCredential logOnAccount)
{
var serviceHandle = Win32ServiceControl.CreateService(
serviceControlManagerHandle,
name,
name,
Win32ServiceControl.SERVICE_ACCESS.SERVICE_ALL_ACCESS,
Win32ServiceControl.SERVICE_TYPES.SERVICE_WIN32_OWN_PROCESS,
Win32ServiceControl.SERVICE_START_TYPES.SERVICE_AUTO_START,
Win32ServiceControl.SERVICE_ERROR_CONTROL.SERVICE_ERROR_NORMAL,
executablePath,
null,
IntPtr.Zero,
null,
string.Format(@"{0}\{1}", logOnAccount.Domain, logOnAccount.UserName),
logOnAccount.Password);
if (serviceHandle.IsInvalid)
{
ThrowNewWin32Exception(
"Failed to create '{0}' on {1}.",
name,
this.hostName);
}
return(serviceHandle);
}
private void UpdateDescription(
Win32ServiceControlHandle serviceHandle,
string description)
{
if (string.IsNullOrWhiteSpace(description))
{
return;
}
var desc = new Win32ServiceControl.SERVICE_DESCRIPTION
{
lpDescription = description
};
int returnValue = Win32ServiceControl.ChangeServiceDescription(
serviceHandle,
Win32ServiceControl.INFO_LEVEL.SERVICE_CONFIG_DESCRIPTION,
ref desc);
if (returnValue == 0)
{
ThrowNewWin32Exception(
"Failed to update the description to '{0}' on {1}.",
description,
this.hostName);
}
}
override protected bool ReleaseHandle()
{
// Here, we must obey all rules for constrained execution regions.
return(Win32ServiceControl.CloseServiceHandle(this.handle));
// If ReleaseHandle failed, it can be reported via the
// "releaseHandleFailed" managed debugging assistant (MDA). This
// MDA is disabled by default, but can be enabled in a debugger
// or during testing to diagnose handle corruption problems.
// We do not throw an exception because most code could not recover
// from the problem.
}
private void DeleteService(Win32ServiceControlHandle serviceHandle)
{
int returnValue = Win32ServiceControl.DeleteService(serviceHandle);
if (returnValue == 0)
{
ThrowNewWin32Exception(
"Failed to remove service on {0}.",
this.hostName);
}
}
private Win32ServiceControlHandle OpenService(
Win32ServiceControlHandle serviceControlManagerHandle,
string name)
{
var serviceHandle = Win32ServiceControl.OpenService(
serviceControlManagerHandle,
name,
Win32ServiceControl.SERVICE_ACCESS.SERVICE_ALL_ACCESS);
if (serviceHandle.IsInvalid)
{
ThrowNewWin32Exception(
"Failed to get a handle on '{0}' on {1}.",
name,
this.hostName);
}
return(serviceHandle);
}
private static Win32ServiceControlHandle OpenServiceControlManager(
string hostName,
Win32ServiceControl.SCM_ACCESS access = Win32ServiceControl.SCM_ACCESS.SC_MANAGER_CREATE_SERVICE)
{
if (Environment.MachineName.Equals(hostName, StringComparison.OrdinalIgnoreCase))
{
hostName = null;
}
var serviceControlManagerHandle = Win32ServiceControl.OpenSCManager(
hostName,
null,
access);
if (serviceControlManagerHandle.IsInvalid)
{
ThrowNewWin32Exception(
"Failed to open the Service Control Manager on {0}.",
hostName);
}
return(serviceControlManagerHandle);
}
private void UpdateFailureActions(Win32ServiceControlHandle serviceHandle)
{
const int DelayMilliseconds = 60 * 1000;
const int ActionCount = 3;
var actions = new int[ActionCount * 2];
int i = 0;
actions[i++] = (int)Win32ServiceControl.ACTION_TYPE.SC_ACTION_RESTART;
actions[i++] = DelayMilliseconds;
actions[i++] = (int)Win32ServiceControl.ACTION_TYPE.SC_ACTION_RESTART;
actions[i++] = DelayMilliseconds;
actions[i++] = (int)Win32ServiceControl.ACTION_TYPE.SC_ACTION_RESTART;
actions[i++] = DelayMilliseconds;
IntPtr buffer = Marshal.AllocHGlobal(ActionCount * 8);
Marshal.Copy(actions, 0, buffer, ActionCount * 2);
var failureActions = new Win32ServiceControl.SERVICE_FAILURE_ACTIONS
{
cActions = ActionCount,
dwResetPeriod = 4,
lpCommand = null,
lpRebootMsg = null,
lpsaActions = new IntPtr(buffer.ToInt32())
};
int returnValue = Win32ServiceControl.ChangeServiceFailureActions(
serviceHandle,
Win32ServiceControl.INFO_LEVEL.SERVICE_CONFIG_FAILURE_ACTIONS,
ref failureActions);
if (returnValue == 0)
{
ThrowNewWin32Exception("Failed to update failure actions.");
}
}
/// <summary>
/// Hack method without having to impersonate admin user.
/// </summary>
internal static bool IsServiceInstalled(string hostName, string serviceName)
{
using (var scmHandle = OpenServiceControlManager(hostName, Win32ServiceControl.SCM_ACCESS.SC_MANAGER_CONNECT))
{
if (scmHandle.IsInvalid)
{
throw new Win32Exception();
}
using (
var serviceHandle = Win32ServiceControl.OpenService(
scmHandle,
serviceName,
Win32ServiceControl.SERVICE_ACCESS.SERVICE_QUERY_STATUS))
{
if (!serviceHandle.IsInvalid)
{
return(true);
}
var win32Exception = new Win32Exception();
switch (win32Exception.NativeErrorCode)
{
case 5: // Access is denied, but that means it very likely exists!
return(true);
case 1060: // The specified service does not exist as an installed service
return(false);
default:
throw win32Exception;
}
}
}
}
