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icadis.c File Reference

#include "precomp.h"
#include "ntuser.h"
#include <winsta.h>
#include <wstmsg.h>
#include <icadd.h>

Go to the source code of this file.

Functions

NTSTATUS ConnectToTerminalServer (ULONG Access, PHANDLE pPortHandle)
NTSTATUS BrokenConnection (BROKENCLASS Reason, BROKENSOURCECLASS Source)
NTSTATUS ReplyMessageToTerminalServer (PCTXHARDERRORINFO pchi)
NTSTATUS ShadowHotkey ()

Variables

HANDLE WinStationIcaApiPort = NULL

Function Documentation

NTSTATUS BrokenConnection (  BROKENCLASS  Reason,
BROKENSOURCECLASS  Source
) 
 

Definition at line 112 of file icadis.c.

References ConnectToTerminalServer(), DbgPrint, NT_SUCCESS, NtRequestWaitReplyPort(), NTSTATUS(), NULL, Status, TRUE, and WinStationIcaApiPort.

Referenced by Win32CommandChannelThread(). 

00115 {
00116     WINSTATION_APIMSG Msg;
00117     NTSTATUS          Status;
00118 
00119     /*
00120      * Connect to Session Mgr
00121      */
00122     if (WinStationIcaApiPort == NULL) {
00123         Status = ConnectToTerminalServer(0, &WinStationIcaApiPort);        //BUGBUG -- add access
00124         if (!NT_SUCCESS(Status)) {
00125             return (Status);
00126         }
00127     }
00128 
00129 
00130     Msg.h.u1.s1.DataLength = sizeof(Msg) - sizeof(PORT_MESSAGE);
00131     Msg.h.u1.s1.TotalLength = sizeof(Msg);
00132     Msg.h.u2.s2.Type = 0; // Kernel will fill in message type
00133     Msg.h.u2.s2.DataInfoOffset = 0;
00134     Msg.WaitForReply = TRUE;
00135     Msg.ApiNumber = SMWinStationBrokenConnection;
00136     Msg.ReturnedStatus = 0;
00137 
00138     Msg.u.Broken.Reason = Reason;
00139     Msg.u.Broken.Source = Source;
00140 
00141     Status = NtRequestWaitReplyPort(WinStationIcaApiPort, (PPORT_MESSAGE)&Msg, (PPORT_MESSAGE)&Msg);
00142 
00143 
00144 
00145 
00146 #if DBG
00147     if (!NT_SUCCESS(Status)) {
00148         DbgPrint("BrokenConnection: rc=0x%x\n", Status);
00149     }
00150 #endif
00151 
00152     return (Status);
00153 }

NTSTATUS ConnectToTerminalServer (  ULONG  Access,
PHANDLE  pPortHandle
) 
 

Definition at line 42 of file icadis.c.

References DbgPrint, DynamicQos, L, NT_SUCCESS, NtConnectPort(), NTSTATUS(), NULL, PortName, RtlInitUnicodeString(), Status, and TRUE.

Referenced by BrokenConnection(), ReplyMessageToTerminalServer(), and ShadowHotkey(). 

00045 {
00046     UNICODE_STRING              PortName;
00047     SECURITY_QUALITY_OF_SERVICE DynamicQos;
00048     WINSTATIONAPI_CONNECT_INFO  info;
00049     ULONG                       ConnectInfoLength;
00050     NTSTATUS                    Status;
00051 
00052     /*
00053      * Set up SM API port name
00054      */
00055     RtlInitUnicodeString(&PortName, L"\\SmSsWinStationApiPort");
00056 
00057     /*
00058      * Set up the security quality of service parameters to use over the
00059      * port.  Use the most efficient (least overhead) - which is dynamic
00060      * rather than static tracking.
00061      */
00062     DynamicQos.ImpersonationLevel = SecurityImpersonation;
00063     DynamicQos.ContextTrackingMode = SECURITY_DYNAMIC_TRACKING;
00064     DynamicQos.EffectiveOnly = TRUE;
00065 
00066     /*
00067      * Fill in the ConnectInfo structure with our access request mask
00068      */
00069     info.Version = CITRIX_WINSTATIONAPI_VERSION;
00070     info.RequestedAccess = Access;
00071     ConnectInfoLength = sizeof(WINSTATIONAPI_CONNECT_INFO);
00072 
00073     // Attempt to connect to the Session Manager API port
00074     Status = NtConnectPort(pPortHandle,
00075                             &PortName,
00076                             &DynamicQos,
00077                             NULL,
00078                             NULL,
00079                             NULL, // Max message length [select default]
00080                             (PVOID)&info,
00081                             &ConnectInfoLength);
00082     if (!NT_SUCCESS(Status)) {
00083         // Look at the returned INFO to see why if desired
00084         *pPortHandle = NULL;
00085 #if DBG
00086         if (ConnectInfoLength == sizeof(WINSTATIONAPI_CONNECT_INFO)) {
00087             DbgPrint("WinstationConnectToICASrv: connect failed, Reason 0x%x\n", info.AcceptStatus);
00088         }
00089         DbgPrint("WinstationConnectToICASrv: Connect failed 0x%x\n", Status);
00090 #endif
00091         return (Status);
00092     }
00093 
00094     return (STATUS_SUCCESS);
00095 }

NTSTATUS ReplyMessageToTerminalServer (  PCTXHARDERRORINFO  pchi  ) 
 

Definition at line 168 of file icadis.c.

References ConnectToTerminalServer(), DbgPrint, tagCTXHARDERRORINFO::hEvent, NT_SUCCESS, NtClose(), NtRequestWaitReplyPort(), NTSTATUS(), PortHandle, tagCTXHARDERRORINFO::pResponse, tagCTXHARDERRORINFO::Response, Status, and TRUE.

Referenced by HardErrorRemove(). 

00170 {
00171     WINSTATION_APIMSG Msg;
00172     NTSTATUS          Status;
00173     HANDLE            PortHandle;
00174 
00175     /*
00176      * Connect to Session Mgr
00177      */
00178     Status = ConnectToTerminalServer(0, &PortHandle);        //BUGBUG -- add access
00179     if (!NT_SUCCESS(Status)) {
00180         return (Status);
00181     }
00182 
00183 
00184 
00185 
00186 
00187     Msg.h.u1.s1.DataLength = sizeof(Msg) - sizeof(PORT_MESSAGE);
00188     Msg.h.u1.s1.TotalLength = sizeof(Msg);
00189     Msg.h.u2.s2.Type = 0; // Kernel will fill in message type
00190     Msg.h.u2.s2.DataInfoOffset = 0;
00191     Msg.WaitForReply = TRUE;
00192     Msg.ApiNumber = SMWinStationIcaReplyMessage;
00193     Msg.ReturnedStatus = 0;
00194 
00195     Msg.u.ReplyMessage.Response  = pchi->Response;
00196     Msg.u.ReplyMessage.pResponse = pchi->pResponse;
00197     Msg.u.ReplyMessage.hEvent    = pchi->hEvent;
00198 
00199     Status = NtRequestWaitReplyPort(PortHandle, (PPORT_MESSAGE)&Msg, (PPORT_MESSAGE)&Msg);
00200 
00201 
00202 
00203 
00204 
00205 #if DBG
00206     if (!NT_SUCCESS(Status)) {
00207         DbgPrint("ReplyMessageToTerminalServer: rc=0x%x\n", Status);
00208     }
00209 #endif
00210     NtClose(PortHandle);
00211 
00212     return (Status);
00213 }

NTSTATUS ShadowHotkey (   ) 
 

Definition at line 228 of file icadis.c.

References ConnectToTerminalServer(), DbgPrint, NT_SUCCESS, NtRequestWaitReplyPort(), NTSTATUS(), NULL, Status, TRUE, and WinStationIcaApiPort.

Referenced by Win32CommandChannelThread(). 

00229 {
00230     WINSTATION_APIMSG Msg;
00231     NTSTATUS Status;
00232 
00233     /*
00234      * Connect to Session Mgr
00235      */
00236     if (WinStationIcaApiPort == NULL) {
00237         Status = ConnectToTerminalServer(0, &WinStationIcaApiPort);        //BUGBUG -- add access
00238         if (!NT_SUCCESS(Status)) {
00239             return (Status);
00240         }
00241     }
00242 
00243 
00244 
00245 
00246 
00247 
00248     Msg.h.u1.s1.DataLength = sizeof(Msg) - sizeof(PORT_MESSAGE);
00249     Msg.h.u1.s1.TotalLength = sizeof(Msg);
00250     Msg.h.u2.s2.Type = 0; // Kernel will fill in message type
00251     Msg.h.u2.s2.DataInfoOffset = 0;
00252     Msg.WaitForReply = TRUE;
00253     Msg.ApiNumber = SMWinStationIcaShadowHotkey;
00254     Msg.ReturnedStatus = 0;
00255 
00256     Status = NtRequestWaitReplyPort(WinStationIcaApiPort, (PPORT_MESSAGE)&Msg, (PPORT_MESSAGE)&Msg);
00257 
00258 
00259 
00260 #if DBG
00261     if (!NT_SUCCESS(Status)) {
00262         DbgPrint("ShadowHotkey: rc=0x%x\n", Status);
00263     }
00264 #endif
00265 
00266     return (Status);
00267 }

Variable Documentation

HANDLE WinStationIcaApiPort = NULL
 

Definition at line 26 of file icadis.c.

Referenced by BrokenConnection(), ShadowHotkey(), W32WinStationTerminate(), and Win32CommandChannelThread().

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