Ejemplo n.º 1
0
        /// <summary>
        /// Acquire an existing Windows security context.
        /// </summary>
        /// <param name="username">Target username for this security context.</param>
        /// <param name="credentials">Credentials handle.</param>
        /// <param name="securityPackage">Security package.</param>
        /// <param name="fContextReq">Bit flags that indicate requests for the context.</param>
        /// <param name="targetDataRep">Target data representation.</param>
        public WindowsSecurityContext(string username, WindowsCredentialsHandle credentials, string securityPackage,
                                      int fContextReq, int targetDataRep)
        {
            _username        = username;
            _credentials     = credentials.Handle;
            _securityPackage = securityPackage;
            _token           = new Secur32.SecBufferDesc(Secur32.MAX_TOKEN_SIZE);
            int rc = Secur32.InitializeSecurityContext(
                ref credentials.Handle,
                IntPtr.Zero,
                username, // service principal name
                fContextReq,
                0,
                targetDataRep,
                IntPtr.Zero,
                0,
                ref _context,
                ref _token,
                out _contextAttributes,
                out _contextLifetime);

            switch (rc)
            {
            case Secur32.SEC_E_OK:
                break;

            case Secur32.SEC_I_CONTINUE_NEEDED:
                _continue = true;
                break;

            default:
                throw new Win32Exception(rc);
            }
        }
Ejemplo n.º 2
0
        /// <summary>
        /// Acquire an existing Windows security context.
        /// </summary>
        /// <param name="username">Target username for this security context.</param>
        /// <param name="credentials">Credentials handle.</param>
        /// <param name="securityPackage">Security package.</param>
        /// <param name="fContextReq">Bit flags that indicate requests for the context.</param>
        /// <param name="targetDataRep">Target data representation.</param>
        public WindowsSecurityContext(string username, WindowsCredentialsHandle credentials, string securityPackage, 
            int fContextReq, int targetDataRep)
        {
            _username = username;
            _credentials = credentials.Handle;
            _securityPackage = securityPackage;
            _token = new Secur32.SecBufferDesc(Secur32.MAX_TOKEN_SIZE);
            int rc = Secur32.InitializeSecurityContext(
                ref credentials.Handle,
                IntPtr.Zero,
                username, // service principal name
                fContextReq,
                0,
                targetDataRep,
                IntPtr.Zero,
                0,
                ref _context,
                ref _token,
                out _contextAttributes,
                out _contextLifetime);

            switch (rc)
            {
                case Secur32.SEC_E_OK:
                    break;
                case Secur32.SEC_I_CONTINUE_NEEDED:
                    _continue = true;
                    break;
                default:
                    throw new Win32Exception(rc);
            }
        }
Ejemplo n.º 3
0
        /// <summary>
        /// Acquire an existing Windows security context.
        /// </summary>
        /// <param name="targetName">Target name for this security context.</param>
        /// <param name="credentials">Credentials handle.</param>
        /// <param name="securityPackage">Security package.</param>
        /// <param name="fContextReq">Bit flags that indicate requests for the context.</param>
        /// <param name="targetDataRep">Target data representation.</param>
        public WindowsSecurityContext(string targetName, WindowsCredentialsHandle credentials, string securityPackage, int fContextReq, int targetDataRep)
        {
            _targetName = targetName;
            _credentials = credentials.Handle;
            _securityPackage = securityPackage;

            Initialize(credentials.Handle, _targetName, fContextReq, targetDataRep);
        }
        /// <summary>
        /// Acquire an existing Windows security context.
        /// </summary>
        /// <param name="targetName">Target name for this security context.</param>
        /// <param name="credentials">Credentials handle.</param>
        /// <param name="securityPackage">Security package.</param>
        /// <param name="fContextReq">Bit flags that indicate requests for the context.</param>
        /// <param name="targetDataRep">Target data representation.</param>
        public WindowsSecurityContext(string targetName, WindowsCredentialsHandle credentials, string securityPackage, int fContextReq, int targetDataRep)
        {
            _targetName      = targetName;
            _credentials     = credentials.Handle;
            _securityPackage = securityPackage;

            Initialize(credentials.Handle, _targetName, fContextReq, targetDataRep);
        }
        /// <summary>
        /// A continuation Windows Security Context.
        /// </summary>
        /// <param name="init">
        /// Initial context that contains a handle to the credentials returned by
        /// AcquireCredentialsHandle. This handle is used to build the security context.
        /// </param>
        /// <param name="continueToken">
        /// Token returned by the remote computer.
        /// </param>
        /// <param name="fContextReq">
        /// Bit flags that indicate requests for the context. Not all packages can support all requirements.
        /// Flags used for this parameter are prefixed with ISC_REQ_, for example, ISC_REQ_DELEGATE.
        /// </param>
        /// <param name="targetDataRep">
        /// </param>
        public WindowsSecurityContext(WindowsSecurityContext init, byte[] continueToken, int fContextReq, int targetDataRep)
        {
            _targetName      = init._targetName;
            _credentials     = init._credentials;
            _securityPackage = init._securityPackage;

            using (var continueTokenBuffer = new Secur32.SecBufferDesc(continueToken))
            {
                Initialize(_credentials, _targetName, fContextReq, targetDataRep, init._context, continueTokenBuffer);
            }
        }
Ejemplo n.º 6
0
 /// <summary>
 /// Acquire an existing Windows security context.
 /// </summary>
 /// <param name="context"></param>
 /// <param name="contextAttributes"></param>
 /// <param name="contextLifetime"></param>
 /// <param name="continueNeeded"></param>
 /// <param name="securityPackage"></param>
 /// <param name="token"></param>        
 public WindowsSecurityContext(
     Secur32.SecHandle context,
     uint contextAttributes,
     Secur32.SECURITY_INTEGER contextLifetime,
     Secur32.SecBufferDesc token,
     string securityPackage,
     bool continueNeeded)
 {
     _context = context;
     _contextAttributes = contextAttributes;
     _contextLifetime = contextLifetime;
     _securityPackage = securityPackage;
     _token = token;
     _continue = continueNeeded;
 }
 /// <summary>
 /// Acquire an existing Windows security context.
 /// </summary>
 /// <param name="context"></param>
 /// <param name="contextAttributes"></param>
 /// <param name="contextLifetime"></param>
 /// <param name="continueNeeded"></param>
 /// <param name="securityPackage"></param>
 /// <param name="token"></param>
 public WindowsSecurityContext(
     Secur32.SecHandle context,
     uint contextAttributes,
     Secur32.SECURITY_INTEGER contextLifetime,
     Secur32.SecBufferDesc token,
     string securityPackage,
     bool continueNeeded)
 {
     _context           = context;
     _contextAttributes = contextAttributes;
     _contextLifetime   = contextLifetime;
     _securityPackage   = securityPackage;
     _token             = token;
     _continue          = continueNeeded;
 }
Ejemplo n.º 8
0
        /// <summary>
        /// Validate a security token and return the windows account of the user that generated the token.
        /// Implementation of <see cref="T:Waffle.Windows.AuthProvider.IWindowsAuthProvider.ValidateNegotiateToken" />.
        /// </summary>
        /// <remarks>
        /// This function supports AcceptSecurityToken continuation on the same thread.
        /// </remarks>
        /// <param name="connectionId">Connection id.</param>
        /// <param name="token">Security token.</param>
        /// <param name="securityPackage">Security package, eg. "Negotiate".</param>
        /// <param name="fContextReq"></param>
        /// <param name="targetDataRep"></param>
        /// <returns></returns>
        public IWindowsSecurityContext AcceptSecurityToken(string connectionId, byte[] token, string securityPackage,
                                                           int fContextReq, int targetDataRep)
        {
            Secur32.SecHandle        newContext     = Secur32.SecHandle.Zero;
            Secur32.SecBufferDesc    serverToken    = Secur32.SecBufferDesc.Zero;
            Secur32.SecBufferDesc    clientToken    = Secur32.SecBufferDesc.Zero;
            Secur32.SECURITY_INTEGER serverLifetime = Secur32.SECURITY_INTEGER.Zero;

            WindowsCredentialsHandle credentialsHandle = new WindowsCredentialsHandle(
                string.Empty, Secur32.SECPKG_CRED_INBOUND, securityPackage);

            var tokenSize = Secur32.MAX_TOKEN_SIZE;
            var rc        = 0;

            do
            {
                serverToken = new Secur32.SecBufferDesc(tokenSize);
                clientToken = new Secur32.SecBufferDesc(token);
                uint serverContextAttributes = 0;

                Secur32.SecHandle continueSecHandle = Secur32.SecHandle.Zero;
                lock (_continueSecHandles)
                {
                    _continueSecHandles.TryGetValue(connectionId, out continueSecHandle);
                }

                if (continueSecHandle == Secur32.SecHandle.Zero)
                {
                    rc = Secur32.AcceptSecurityContext(
                        ref credentialsHandle.Handle,
                        IntPtr.Zero,
                        ref clientToken,
                        fContextReq,
                        targetDataRep,
                        ref newContext,
                        ref serverToken,
                        out serverContextAttributes,
                        out serverLifetime);
                }
                else
                {
                    rc = Secur32.AcceptSecurityContext(
                        ref credentialsHandle.Handle,
                        ref continueSecHandle,
                        ref clientToken,
                        fContextReq,
                        targetDataRep,
                        ref newContext,
                        ref serverToken,
                        out serverContextAttributes,
                        out serverLifetime);
                }

                switch (rc)
                {
                case Secur32.SEC_E_INSUFFICIENT_MEMORY:
                    tokenSize += Secur32.MAX_TOKEN_SIZE;
                    break;

                case Secur32.SEC_E_OK:

                    lock (_continueSecHandles)
                    {
                        _continueSecHandles.Remove(connectionId);
                    }

                    return(new WindowsSecurityContext(
                               newContext,
                               serverContextAttributes,
                               serverLifetime,
                               serverToken,
                               securityPackage,
                               false));

                case Secur32.SEC_I_CONTINUE_NEEDED:

                    lock (_continueSecHandles)
                    {
                        _continueSecHandles[connectionId] = newContext;
                    }

                    return(new WindowsSecurityContext(
                               newContext,
                               serverContextAttributes,
                               serverLifetime,
                               serverToken,
                               securityPackage,
                               true));

                default:

                    lock (_continueSecHandles)
                    {
                        _continueSecHandles.Remove(connectionId);
                    }

                    throw new Win32Exception(rc);
                }
            } while (rc == Secur32.SEC_E_INSUFFICIENT_MEMORY);

            return(null);
        }
Ejemplo n.º 9
0
        /// <summary>
        /// A continuation Windows Security Context.
        /// </summary>
        /// <param name="init">
        /// Initial context that contains a handle to the credentials returned by 
        /// AcquireCredentialsHandle. This handle is used to build the security context. 
        /// </param>
        /// <param name="continueToken">
        /// Token returned by the remote computer.
        /// </param>
        /// <param name="fContextReq">
        /// Bit flags that indicate requests for the context. Not all packages can support all requirements. 
        /// Flags used for this parameter are prefixed with ISC_REQ_, for example, ISC_REQ_DELEGATE.
        /// </param>
        /// <param name="targetDataRep">
        /// </param>
        public WindowsSecurityContext(WindowsSecurityContext init, byte[] continueToken, int fContextReq, int targetDataRep)
        {
            _targetName = init._targetName;
            _credentials = init._credentials;
            _securityPackage = init._securityPackage;

            using (var continueTokenBuffer = new Secur32.SecBufferDesc(continueToken))
            {
                Initialize(_credentials, _targetName, fContextReq, targetDataRep, init._context, continueTokenBuffer);
            }
        }
        private void Initialize(Secur32.SecHandle credentials, string targetName, int fContextReq, int targetDataRep, Secur32.SecHandle context, Secur32.SecBufferDesc continueTokenBuffer)
        {
            var tokenSize             = Secur32.MAX_TOKEN_SIZE;
            var rc                    = 0;
            var hasContextAndContinue = context != Secur32.SecHandle.Zero && continueTokenBuffer != Secur32.SecBufferDesc.Zero;

            do
            {
                _token.Dispose();
                _token = new Secur32.SecBufferDesc(tokenSize);

                if (hasContextAndContinue)
                {
                    rc = Secur32.InitializeSecurityContext(
                        ref credentials,
                        ref context,
                        targetName,
                        fContextReq,
                        0,
                        targetDataRep,
                        ref continueTokenBuffer,
                        0,
                        ref _context,
                        ref _token,
                        out _contextAttributes,
                        out _contextLifetime);
                }
                else
                {
                    rc = Secur32.InitializeSecurityContext(
                        ref credentials,
                        IntPtr.Zero,
                        targetName,
                        fContextReq,
                        0,
                        targetDataRep,
                        IntPtr.Zero,
                        0,
                        ref _context,
                        ref _token,
                        out _contextAttributes,
                        out _contextLifetime);
                }

                switch (rc)
                {
                case Secur32.SEC_E_INSUFFICIENT_MEMORY:
                    tokenSize += Secur32.MAX_TOKEN_SIZE;
                    break;

                case Secur32.SEC_E_OK:
                    break;

                case Secur32.SEC_I_CONTINUE_NEEDED:
                    _continue = true;
                    break;

                default:
                    throw new Win32Exception(rc);
                }
            } while (rc == Secur32.SEC_E_INSUFFICIENT_MEMORY);
        }
 private void Initialize(Secur32.SecHandle credentials, string targetName, int fContextReq, int targetDataRep)
 {
     this.Initialize(credentials, targetName, fContextReq, targetDataRep, Secur32.SecHandle.Zero, Secur32.SecBufferDesc.Zero);
 }