internal static void AddRightGrantedToAccounts(List <SecurityIdentifier> accounts, int right, bool onProcess)
{
SafeCloseHandle process = OpenCurrentProcessForWrite();
try
{
if (onProcess)
{
EditKernelObjectSecurity(process, accounts, null, right, true);
}
else
{
SafeCloseHandle token = GetProcessToken(process, ListenerUnsafeNativeMethods.TOKEN_QUERY | ListenerUnsafeNativeMethods.WRITE_DAC | ListenerUnsafeNativeMethods.READ_CONTROL);
try
{
EditKernelObjectSecurity(token, accounts, null, right, true);
}
finally
{
token.Close();
}
}
}
finally
{
process.Close();
}
}
internal static SecurityIdentifier GetUserSidForPid(int pid)
{
SafeCloseHandle process = OpenProcessForQuery(pid);
try
{
SafeCloseHandle token = GetProcessToken(process, ListenerUnsafeNativeMethods.TOKEN_QUERY);
try
{
int length = GetTokenInformationLength(token, ListenerUnsafeNativeMethods.TOKEN_INFORMATION_CLASS.TokenUser);
byte[] tokenInformation = new byte[length];
fixed(byte *pTokenInformation = tokenInformation)
{
GetTokenInformation(token, ListenerUnsafeNativeMethods.TOKEN_INFORMATION_CLASS.TokenUser, tokenInformation);
ListenerUnsafeNativeMethods.TOKEN_USER * ptg = (ListenerUnsafeNativeMethods.TOKEN_USER *)pTokenInformation;
ListenerUnsafeNativeMethods.SID_AND_ATTRIBUTES *sids = (ListenerUnsafeNativeMethods.SID_AND_ATTRIBUTES *)(&(ptg->User));
return(new SecurityIdentifier(sids->Sid));
}
}
finally
{
token.Close();
}
}
finally
{
process.Close();
}
}
internal static void AddRightGrantedToAccounts(List <SecurityIdentifier> accounts, int right, bool onProcess)
{
SafeCloseHandle kernelObject = OpenCurrentProcessForWrite();
try
{
if (onProcess)
{
EditKernelObjectSecurity(kernelObject, accounts, null, right, true);
}
else
{
SafeCloseHandle processToken = GetProcessToken(kernelObject, 0x60008);
try
{
EditKernelObjectSecurity(processToken, accounts, null, right, true);
}
finally
{
processToken.Close();
}
}
}
finally
{
kernelObject.Close();
}
}
internal static unsafe void KeepOnlyPrivilegeInProcess(string privilege)
{
SafeCloseHandle process = OpenCurrentProcessForWrite();
try
{
SafeCloseHandle processToken = GetProcessToken(process, 0x20028);
try
{
LUID luid;
if (!ListenerUnsafeNativeMethods.LookupPrivilegeValue(IntPtr.Zero, privilege, &luid))
{
int error = Marshal.GetLastWin32Error();
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(error));
}
byte[] tokenInformation = new byte[GetTokenInformationLength(processToken, ListenerUnsafeNativeMethods.TOKEN_INFORMATION_CLASS.TokenPrivileges)];
try
{
fixed(byte *numRef = tokenInformation)
{
GetTokenInformation(processToken, ListenerUnsafeNativeMethods.TOKEN_INFORMATION_CLASS.TokenPrivileges, tokenInformation);
ListenerUnsafeNativeMethods.TOKEN_PRIVILEGES *newState = (ListenerUnsafeNativeMethods.TOKEN_PRIVILEGES *)numRef;
LUID_AND_ATTRIBUTES *luid_and_attributesPtr = &newState->Privileges;
int index = 0;
for (int i = 0; i < newState->PrivilegeCount; i++)
{
if (!luid_and_attributesPtr[i].Luid.Equals(luid))
{
luid_and_attributesPtr[index].Attributes = PrivilegeAttribute.SE_PRIVILEGE_DISABLED | PrivilegeAttribute.SE_PRIVILEGE_REMOVED;
luid_and_attributesPtr[index].Luid = luid_and_attributesPtr[i].Luid;
index++;
}
}
newState->PrivilegeCount = index;
bool flag = ListenerUnsafeNativeMethods.AdjustTokenPrivileges(processToken, false, newState, tokenInformation.Length, IntPtr.Zero, IntPtr.Zero);
int num5 = Marshal.GetLastWin32Error();
if (!flag || (num5 != 0))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(num5));
}
}
}
finally
{
numRef = null;
}
}
finally
{
processToken.Close();
}
}
finally
{
process.Close();
}
}
internal static void KeepOnlyPrivilegeInProcess(string privilege)
{
SafeCloseHandle process = OpenCurrentProcessForWrite();
try
{
SafeCloseHandle token = GetProcessToken(process, ListenerUnsafeNativeMethods.TOKEN_QUERY | ListenerUnsafeNativeMethods.TOKEN_ADJUST_PRIVILEGES | ListenerUnsafeNativeMethods.READ_CONTROL);
try
{
LUID luid;
bool success = ListenerUnsafeNativeMethods.LookupPrivilegeValue(IntPtr.Zero, privilege, &luid);
if (!success)
{
int error = Marshal.GetLastWin32Error();
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(error));
}
int length = GetTokenInformationLength(token, ListenerUnsafeNativeMethods.TOKEN_INFORMATION_CLASS.TokenPrivileges);
byte[] tokenInformation = new byte[length];
fixed(byte *pTokenPrivileges = tokenInformation)
{
GetTokenInformation(token, ListenerUnsafeNativeMethods.TOKEN_INFORMATION_CLASS.TokenPrivileges,
tokenInformation);
ListenerUnsafeNativeMethods.TOKEN_PRIVILEGES *pTP = (ListenerUnsafeNativeMethods.TOKEN_PRIVILEGES *)pTokenPrivileges;
LUID_AND_ATTRIBUTES *pLuidAndAttributes = (LUID_AND_ATTRIBUTES *)(&(pTP->Privileges));
int privilegeCount = 0;
for (int i = 0; i < pTP->PrivilegeCount; i++)
{
if (!pLuidAndAttributes[i].Luid.Equals(luid))
{
pLuidAndAttributes[privilegeCount].Attributes = PrivilegeAttribute.SE_PRIVILEGE_REMOVED;
pLuidAndAttributes[privilegeCount].Luid = pLuidAndAttributes[i].Luid;
privilegeCount++;
}
}
pTP->PrivilegeCount = privilegeCount;
success = ListenerUnsafeNativeMethods.AdjustTokenPrivileges(token, false, pTP, tokenInformation.Length, IntPtr.Zero, IntPtr.Zero);
int error = Marshal.GetLastWin32Error();
if (!success || error != UnsafeNativeMethods.ERROR_SUCCESS)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(error));
}
}
}
finally
{
token.Close();
}
}
finally
{
process.Close();
}
}
private static void GetTokenInformation(SafeCloseHandle token, ListenerUnsafeNativeMethods.TOKEN_INFORMATION_CLASS tic, byte[] tokenInformation)
{
int num;
if (!ListenerUnsafeNativeMethods.GetTokenInformation(token, tic, tokenInformation, tokenInformation.Length, out num))
{
int error = Marshal.GetLastWin32Error();
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(error));
}
}
private static SafeCloseHandle OpenProcessForQuery(int pid)
{
SafeCloseHandle handle = ListenerUnsafeNativeMethods.OpenProcess(0x400, false, pid);
if (handle.IsInvalid)
{
Exception exception = new Win32Exception();
handle.SetHandleAsInvalid();
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(exception);
}
return(handle);
}
static SafeCloseHandle OpenProcessForQuery(int pid)
{
#pragma warning suppress 56523 // Microsoft, Win32Exception ctor calls Marshal.GetLastWin32Error()
SafeCloseHandle process = ListenerUnsafeNativeMethods.OpenProcess(ListenerUnsafeNativeMethods.PROCESS_QUERY_INFORMATION, false, pid);
if (process.IsInvalid)
{
Exception exception = new Win32Exception();
process.SetHandleAsInvalid();
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(exception);
}
return(process);
}
internal static void AddRightGrantedToAccount(SecurityIdentifier account, int right)
{
SafeCloseHandle process = OpenCurrentProcessForWrite();
try
{
EditKernelObjectSecurity(process, null, account, right, true);
}
finally
{
process.Close();
}
}
static SafeCloseHandle GetProcessToken(SafeCloseHandle process, int requiredAccess)
{
SafeCloseHandle processToken;
bool success = ListenerUnsafeNativeMethods.OpenProcessToken(process, requiredAccess, out processToken);
int error = Marshal.GetLastWin32Error();
if (!success)
{
System.ServiceModel.Diagnostics.Utility.CloseInvalidOutSafeHandle(processToken);
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(error));
}
return processToken;
}
private static SafeCloseHandle OpenCurrentProcessForWrite()
{
int id = Process.GetCurrentProcess().Id;
SafeCloseHandle handle = ListenerUnsafeNativeMethods.OpenProcess(0x60400, false, id);
if (handle.IsInvalid)
{
Exception exception = new Win32Exception();
handle.SetHandleAsInvalid();
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(exception);
}
return(handle);
}
private static SafeCloseHandle GetProcessToken(SafeCloseHandle process, int requiredAccess)
{
SafeCloseHandle handle;
bool flag = ListenerUnsafeNativeMethods.OpenProcessToken(process, requiredAccess, out handle);
int error = Marshal.GetLastWin32Error();
if (!flag)
{
System.ServiceModel.Diagnostics.Utility.CloseInvalidOutSafeHandle(handle);
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(error));
}
return(handle);
}
internal static void RemoveRightGrantedToAccount(SecurityIdentifier account, int right)
{
SafeCloseHandle kernelObject = OpenCurrentProcessForWrite();
try
{
EditKernelObjectSecurity(kernelObject, null, account, right, false);
}
finally
{
kernelObject.Close();
}
}
private static int GetTokenInformationLength(SafeCloseHandle token, ListenerUnsafeNativeMethods.TOKEN_INFORMATION_CLASS tic)
{
int num;
if (!ListenerUnsafeNativeMethods.GetTokenInformation(token, tic, null, 0, out num))
{
int error = Marshal.GetLastWin32Error();
if (error != 0x7a)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(error));
}
}
return(num);
}
static SafeCloseHandle OpenCurrentProcessForWrite()
{
int processId = Process.GetCurrentProcess().Id;
#pragma warning suppress 56523 // Microsoft, Win32Exception ctor calls Marshal.GetLastWin32Error()
SafeCloseHandle process = ListenerUnsafeNativeMethods.OpenProcess(ListenerUnsafeNativeMethods.PROCESS_QUERY_INFORMATION | ListenerUnsafeNativeMethods.WRITE_DAC | ListenerUnsafeNativeMethods.READ_CONTROL, false, processId);
if (process.IsInvalid)
{
Exception exception = new Win32Exception();
process.SetHandleAsInvalid();
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(exception);
}
return(process);
}
static int GetTokenInformationLength(SafeCloseHandle token, ListenerUnsafeNativeMethods.TOKEN_INFORMATION_CLASS tic)
{
int lengthNeeded;
bool success = ListenerUnsafeNativeMethods.GetTokenInformation(token, tic, null, 0, out lengthNeeded);
if (!success)
{
int error = Marshal.GetLastWin32Error();
if (error != ListenerUnsafeNativeMethods.ERROR_INSUFFICIENT_BUFFER)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(error));
}
}
return lengthNeeded;
}
static int GetTokenInformationLength(SafeCloseHandle token, ListenerUnsafeNativeMethods.TOKEN_INFORMATION_CLASS tic)
{
int lengthNeeded;
bool success = ListenerUnsafeNativeMethods.GetTokenInformation(token, tic, null, 0, out lengthNeeded);
if (!success)
{
int error = Marshal.GetLastWin32Error();
if (error != ListenerUnsafeNativeMethods.ERROR_INSUFFICIENT_BUFFER)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(error));
}
}
return(lengthNeeded);
}
// Do not use this method unless you understand the consequnces of lack of synchronization
static void EditKernelObjectSecurity(SafeCloseHandle kernelObject, List <SecurityIdentifier> accounts, SecurityIdentifier account, int right, bool add)
{
// take the SECURITY_DESCRIPTOR from the kernelObject
int lpnLengthNeeded;
bool success = ListenerUnsafeNativeMethods.GetKernelObjectSecurity(kernelObject, ListenerUnsafeNativeMethods.DACL_SECURITY_INFORMATION, null, 0, out lpnLengthNeeded);
if (!success)
{
int errorCode = Marshal.GetLastWin32Error();
if (errorCode != ListenerUnsafeNativeMethods.ERROR_INSUFFICIENT_BUFFER)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(errorCode));
}
}
byte[] pSecurityDescriptor = new byte[lpnLengthNeeded];
#pragma warning suppress 56523 // Microsoft, Win32Exception ctor calls Marshal.GetLastWin32Error()
success = ListenerUnsafeNativeMethods.GetKernelObjectSecurity(kernelObject, ListenerUnsafeNativeMethods.DACL_SECURITY_INFORMATION, pSecurityDescriptor, pSecurityDescriptor.Length, out lpnLengthNeeded);
if (!success)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception());
}
CommonSecurityDescriptor securityDescriptor = new CommonSecurityDescriptor(false, false, pSecurityDescriptor, 0);
DiscretionaryAcl dacl = securityDescriptor.DiscretionaryAcl;
// add ACEs to the SECURITY_DESCRIPTOR of the kernelObject
if (account != null)
{
EditDacl(dacl, account, right, add);
}
else if (accounts != null)
{
foreach (SecurityIdentifier accountInList in accounts)
{
EditDacl(dacl, accountInList, right, add);
}
}
lpnLengthNeeded = securityDescriptor.BinaryLength;
pSecurityDescriptor = new byte[lpnLengthNeeded];
securityDescriptor.GetBinaryForm(pSecurityDescriptor, 0);
// set the SECURITY_DESCRIPTOR on the kernelObject
#pragma warning suppress 56523 // Microsoft, Win32Exception ctor calls Marshal.GetLastWin32Error()
success = ListenerUnsafeNativeMethods.SetKernelObjectSecurity(kernelObject, ListenerUnsafeNativeMethods.DACL_SECURITY_INFORMATION, pSecurityDescriptor);
if (!success)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception());
}
}
internal static unsafe SecurityIdentifier GetLogonSidForPid(int pid)
{
SecurityIdentifier identifier;
SafeCloseHandle process = OpenProcessForQuery(pid);
try
{
SafeCloseHandle processToken = GetProcessToken(process, 8);
try
{
byte[] tokenInformation = new byte[GetTokenInformationLength(processToken, ListenerUnsafeNativeMethods.TOKEN_INFORMATION_CLASS.TokenGroups)];
try
{
fixed(byte *numRef = tokenInformation)
{
GetTokenInformation(processToken, ListenerUnsafeNativeMethods.TOKEN_INFORMATION_CLASS.TokenGroups, tokenInformation);
ListenerUnsafeNativeMethods.TOKEN_GROUPS * token_groupsPtr = (ListenerUnsafeNativeMethods.TOKEN_GROUPS *)numRef;
ListenerUnsafeNativeMethods.SID_AND_ATTRIBUTES *sid_and_attributesPtr = (ListenerUnsafeNativeMethods.SID_AND_ATTRIBUTES *) & token_groupsPtr->Groups;
for (int i = 0; i < token_groupsPtr->GroupCount; i++)
{
if ((sid_and_attributesPtr[i].Attributes & ((ListenerUnsafeNativeMethods.SidAttribute)(-1073741824))) == ((ListenerUnsafeNativeMethods.SidAttribute)(-1073741824)))
{
return(new SecurityIdentifier(sid_and_attributesPtr[i].Sid));
}
}
}
}
finally
{
numRef = null;
}
identifier = new SecurityIdentifier(WellKnownSidType.LocalSystemSid, null);
}
finally
{
processToken.Close();
}
}
finally
{
process.Close();
}
return(identifier);
}
private static void EditKernelObjectSecurity(SafeCloseHandle kernelObject, List <SecurityIdentifier> accounts, SecurityIdentifier account, int right, bool add)
{
int num;
if (!ListenerUnsafeNativeMethods.GetKernelObjectSecurity(kernelObject, 4, null, 0, out num))
{
int error = Marshal.GetLastWin32Error();
if (error != 0x7a)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(error));
}
}
byte[] pSecurityDescriptor = new byte[num];
if (!ListenerUnsafeNativeMethods.GetKernelObjectSecurity(kernelObject, 4, pSecurityDescriptor, pSecurityDescriptor.Length, out num))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception());
}
CommonSecurityDescriptor descriptor = new CommonSecurityDescriptor(false, false, pSecurityDescriptor, 0);
DiscretionaryAcl discretionaryAcl = descriptor.DiscretionaryAcl;
if (account != null)
{
EditDacl(discretionaryAcl, account, right, add);
}
else if (accounts != null)
{
foreach (SecurityIdentifier identifier in accounts)
{
EditDacl(discretionaryAcl, identifier, right, add);
}
}
pSecurityDescriptor = new byte[descriptor.BinaryLength];
descriptor.GetBinaryForm(pSecurityDescriptor, 0);
if (!ListenerUnsafeNativeMethods.SetKernelObjectSecurity(kernelObject, 4, pSecurityDescriptor))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception());
}
}
internal static unsafe SecurityIdentifier GetUserSidForPid(int pid)
{
SecurityIdentifier identifier;
SafeCloseHandle process = OpenProcessForQuery(pid);
try
{
SafeCloseHandle processToken = GetProcessToken(process, 8);
try
{
byte[] tokenInformation = new byte[GetTokenInformationLength(processToken, ListenerUnsafeNativeMethods.TOKEN_INFORMATION_CLASS.TokenUser)];
try
{
fixed(byte *numRef = tokenInformation)
{
GetTokenInformation(processToken, ListenerUnsafeNativeMethods.TOKEN_INFORMATION_CLASS.TokenUser, tokenInformation);
ListenerUnsafeNativeMethods.TOKEN_USER * token_userPtr = (ListenerUnsafeNativeMethods.TOKEN_USER *)numRef;
ListenerUnsafeNativeMethods.SID_AND_ATTRIBUTES *sid_and_attributesPtr = (ListenerUnsafeNativeMethods.SID_AND_ATTRIBUTES *) & token_userPtr->User;
identifier = new SecurityIdentifier(sid_and_attributesPtr->Sid);
}
}
finally
{
numRef = null;
}
}
finally
{
processToken.Close();
}
}
finally
{
process.Close();
}
return(identifier);
}
internal static SecurityIdentifier GetLogonSidForPid(int pid)
{
SafeCloseHandle process = OpenProcessForQuery(pid);
try
{
SafeCloseHandle token = GetProcessToken(process, ListenerUnsafeNativeMethods.TOKEN_QUERY);
try
{
int length = GetTokenInformationLength(token, ListenerUnsafeNativeMethods.TOKEN_INFORMATION_CLASS.TokenGroups);
byte[] tokenInformation = new byte[length];
fixed(byte *pTokenInformation = tokenInformation)
{
GetTokenInformation(token, ListenerUnsafeNativeMethods.TOKEN_INFORMATION_CLASS.TokenGroups, tokenInformation);
ListenerUnsafeNativeMethods.TOKEN_GROUPS * ptg = (ListenerUnsafeNativeMethods.TOKEN_GROUPS *)pTokenInformation;
ListenerUnsafeNativeMethods.SID_AND_ATTRIBUTES *sids = (ListenerUnsafeNativeMethods.SID_AND_ATTRIBUTES *)(&(ptg->Groups));
for (int i = 0; i < ptg->GroupCount; i++)
{
if ((sids[i].Attributes & ListenerUnsafeNativeMethods.SidAttribute.SE_GROUP_LOGON_ID) == ListenerUnsafeNativeMethods.SidAttribute.SE_GROUP_LOGON_ID)
{
return(new SecurityIdentifier(sids[i].Sid));
}
}
}
return(new SecurityIdentifier(WellKnownSidType.LocalSystemSid, null));
}
finally
{
token.Close();
}
}
finally
{
process.Close();
}
}
private static void EditKernelObjectSecurity(SafeCloseHandle kernelObject, List<SecurityIdentifier> accounts, SecurityIdentifier account, int right, bool add)
{
int num;
if (!ListenerUnsafeNativeMethods.GetKernelObjectSecurity(kernelObject, 4, null, 0, out num))
{
int error = Marshal.GetLastWin32Error();
if (error != 0x7a)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(error));
}
}
byte[] pSecurityDescriptor = new byte[num];
if (!ListenerUnsafeNativeMethods.GetKernelObjectSecurity(kernelObject, 4, pSecurityDescriptor, pSecurityDescriptor.Length, out num))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception());
}
CommonSecurityDescriptor descriptor = new CommonSecurityDescriptor(false, false, pSecurityDescriptor, 0);
DiscretionaryAcl discretionaryAcl = descriptor.DiscretionaryAcl;
if (account != null)
{
EditDacl(discretionaryAcl, account, right, add);
}
else if (accounts != null)
{
foreach (SecurityIdentifier identifier in accounts)
{
EditDacl(discretionaryAcl, identifier, right, add);
}
}
pSecurityDescriptor = new byte[descriptor.BinaryLength];
descriptor.GetBinaryForm(pSecurityDescriptor, 0);
if (!ListenerUnsafeNativeMethods.SetKernelObjectSecurity(kernelObject, 4, pSecurityDescriptor))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception());
}
}
internal static extern bool DuplicateHandle(
IntPtr hSourceProcessHandle,
PipeHandle hSourceHandle,
SafeCloseHandle hTargetProcessHandle,
out IntPtr lpTargetHandle,
int dwDesiredAccess,
bool bInheritHandle,
int dwOptions
);
internal static extern bool OpenProcessToken(SafeCloseHandle processHandle, int desiredAccess, out SafeCloseHandle tokenHandle);
internal static extern bool GetTokenInformation(SafeCloseHandle tokenHandle, TOKEN_INFORMATION_CLASS tokenInformationClass, [Out] byte[] pTokenInformation, int tokenInformationLength, out int returnLength);
internal static extern bool GetKernelObjectSecurity(SafeCloseHandle handle, int securityInformation, [Out] byte[] pSecurityDescriptor, int nLength, out int lpnLengthNeeded);
internal static unsafe extern bool AdjustTokenPrivileges(SafeCloseHandle tokenHandle, bool disableAllPrivileges, TOKEN_PRIVILEGES *newState, int bufferLength, IntPtr previousState, IntPtr returnLength);
internal static extern bool SetKernelObjectSecurity(SafeCloseHandle handle, int securityInformation, [In] byte[] pSecurityDescriptor);
private static void GetTokenInformation(SafeCloseHandle token, ListenerUnsafeNativeMethods.TOKEN_INFORMATION_CLASS tic, byte[] tokenInformation)
{
int num;
if (!ListenerUnsafeNativeMethods.GetTokenInformation(token, tic, tokenInformation, tokenInformation.Length, out num))
{
int error = Marshal.GetLastWin32Error();
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(error));
}
}
internal static extern bool GetTokenInformation(SafeCloseHandle tokenHandle, TOKEN_INFORMATION_CLASS tokenInformationClass, [Out] byte[] pTokenInformation, int tokenInformationLength, out int returnLength);
internal static extern bool GetKernelObjectSecurity(SafeCloseHandle handle, int securityInformation, [Out] byte[] pSecurityDescriptor, int nLength, out int lpnLengthNeeded);
internal static unsafe extern bool AdjustTokenPrivileges(SafeCloseHandle tokenHandle, bool disableAllPrivileges, TOKEN_PRIVILEGES* newState, int bufferLength, IntPtr previousState, IntPtr returnLength);
internal static extern bool SetKernelObjectSecurity(SafeCloseHandle handle, int securityInformation, [In] byte[] pSecurityDescriptor);
internal static int GetSessionId(SafeCloseHandle tokenHandle)
{
uint sessionId;
uint returnLength;
if (!UnsafeNativeMethods.GetTokenInformation(
tokenHandle,
TOKEN_INFORMATION_CLASS.TokenSessionId,
out sessionId,
sizeof(uint),
out returnLength))
{
int errorCode = Marshal.GetLastWin32Error();
throw FxTrace.Exception.AsError(new Win32Exception(errorCode));
}
return (int)sessionId;
}
internal static unsafe SecurityIdentifier GetAppContainerSid(SafeCloseHandle tokenHandle)
{
// Get length of buffer needed for sid.
uint returnLength = UnsafeNativeMethods.GetTokenInformationLength(
tokenHandle,
TOKEN_INFORMATION_CLASS.TokenAppContainerSid);
byte[] tokenInformation = new byte[returnLength];
fixed (byte* pTokenInformation = tokenInformation)
{
if (!UnsafeNativeMethods.GetTokenInformation(
tokenHandle,
TOKEN_INFORMATION_CLASS.TokenAppContainerSid,
tokenInformation,
returnLength,
out returnLength))
{
int errorCode = Marshal.GetLastWin32Error();
throw FxTrace.Exception.AsError(new Win32Exception(errorCode));
}
TokenAppContainerInfo* ptg = (TokenAppContainerInfo*)pTokenInformation;
return new SecurityIdentifier(ptg->psid);
}
}
internal static extern bool OpenProcessToken
(
IntPtr ProcessHandle,
TokenAccessLevels DesiredAccess,
out SafeCloseHandle TokenHandle
);
static extern bool GetTokenInformation
(
SafeCloseHandle tokenHandle,
TOKEN_INFORMATION_CLASS tokenInformationClass,
out uint tokenInformation,
uint tokenInformationLength,
out uint returnLength
);
internal static extern bool OpenProcessToken(SafeCloseHandle processHandle, int desiredAccess, out SafeCloseHandle tokenHandle);
static uint GetTokenInformationLength(SafeCloseHandle token, TOKEN_INFORMATION_CLASS tokenInformationClass)
{
uint lengthNeeded;
bool success;
if (!(success = GetTokenInformation(
token,
tokenInformationClass,
null,
0,
out lengthNeeded)))
{
int error = Marshal.GetLastWin32Error();
if (error != UnsafeNativeMethods.ERROR_INSUFFICIENT_BUFFER)
{
throw FxTrace.Exception.AsError(new Win32Exception(error));
}
}
Fx.Assert(!success, "Retreving the length should always fail.");
return lengthNeeded;
}
private static int GetTokenInformationLength(SafeCloseHandle token, ListenerUnsafeNativeMethods.TOKEN_INFORMATION_CLASS tic)
{
int num;
if (!ListenerUnsafeNativeMethods.GetTokenInformation(token, tic, null, 0, out num))
{
int error = Marshal.GetLastWin32Error();
if (error != 0x7a)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(error));
}
}
return num;
}
internal static bool RunningInAppContainer(SafeCloseHandle tokenHandle)
{
uint runningInAppContainer;
uint returnLength;
if (!UnsafeNativeMethods.GetTokenInformation(
tokenHandle,
TOKEN_INFORMATION_CLASS.TokenIsAppContainer,
out runningInAppContainer,
sizeof(uint),
out returnLength))
{
int errorCode = Marshal.GetLastWin32Error();
throw FxTrace.Exception.AsError(new Win32Exception(errorCode));
}
return runningInAppContainer == 1;
}
// Do not use this method unless you understand the consequnces of lack of synchronization
static void EditKernelObjectSecurity(SafeCloseHandle kernelObject, List<SecurityIdentifier> accounts, SecurityIdentifier account, int right, bool add)
{
// take the SECURITY_DESCRIPTOR from the kernelObject
int lpnLengthNeeded;
bool success = ListenerUnsafeNativeMethods.GetKernelObjectSecurity(kernelObject, ListenerUnsafeNativeMethods.DACL_SECURITY_INFORMATION, null, 0, out lpnLengthNeeded);
if (!success)
{
int errorCode = Marshal.GetLastWin32Error();
if (errorCode != ListenerUnsafeNativeMethods.ERROR_INSUFFICIENT_BUFFER)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(errorCode));
}
}
byte[] pSecurityDescriptor = new byte[lpnLengthNeeded];
#pragma warning suppress 56523 // Microsoft, Win32Exception ctor calls Marshal.GetLastWin32Error()
success = ListenerUnsafeNativeMethods.GetKernelObjectSecurity(kernelObject, ListenerUnsafeNativeMethods.DACL_SECURITY_INFORMATION, pSecurityDescriptor, pSecurityDescriptor.Length, out lpnLengthNeeded);
if (!success)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception());
}
CommonSecurityDescriptor securityDescriptor = new CommonSecurityDescriptor(false, false, pSecurityDescriptor, 0);
DiscretionaryAcl dacl = securityDescriptor.DiscretionaryAcl;
// add ACEs to the SECURITY_DESCRIPTOR of the kernelObject
if (account != null)
{
EditDacl(dacl, account, right, add);
}
else if (accounts != null)
{
foreach (SecurityIdentifier accountInList in accounts)
{
EditDacl(dacl, accountInList, right, add);
}
}
lpnLengthNeeded = securityDescriptor.BinaryLength;
pSecurityDescriptor = new byte[lpnLengthNeeded];
securityDescriptor.GetBinaryForm(pSecurityDescriptor, 0);
// set the SECURITY_DESCRIPTOR on the kernelObject
#pragma warning suppress 56523 // Microsoft, Win32Exception ctor calls Marshal.GetLastWin32Error()
success = ListenerUnsafeNativeMethods.SetKernelObjectSecurity(kernelObject, ListenerUnsafeNativeMethods.DACL_SECURITY_INFORMATION, pSecurityDescriptor);
if (!success)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception());
}
}
