bb5345c60e
C requires prototypes or compilers will complain about them missing. Our library entry points do not have such, therefore add the macro FREERDP_ENTRY_POINT which declares the function prototype automatically before the function.
757 lines
20 KiB
C
757 lines
20 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* RAIL Virtual Channel Plugin
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*
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* Copyright 2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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* Copyright 2011 Roman Barabanov <romanbarabanov@gmail.com>
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* Copyright 2011 Vic Lee
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* Copyright 2015 Thincast Technologies GmbH
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* Copyright 2015 DI (FH) Martin Haimberger <martin.haimberger@thincast.com>
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* Copyright 2017 Armin Novak <armin.novak@thincast.com>
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* Copyright 2017 Thincast Technologies GmbH
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <freerdp/config.h>
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#include <winpr/crt.h>
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#include <freerdp/types.h>
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#include <freerdp/constants.h>
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#include <freerdp/freerdp.h>
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#include "rail_orders.h"
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#include "rail_main.h"
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#include "../../../channels/client/addin.h"
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RailClientContext* rail_get_client_interface(railPlugin* rail)
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{
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RailClientContext* pInterface;
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if (!rail)
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return NULL;
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pInterface = (RailClientContext*)rail->channelEntryPoints.pInterface;
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return pInterface;
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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static UINT rail_send(railPlugin* rail, wStream* s)
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{
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UINT status;
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if (!rail)
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{
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Stream_Free(s, TRUE);
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return CHANNEL_RC_BAD_INIT_HANDLE;
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}
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status = rail->channelEntryPoints.pVirtualChannelWriteEx(
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rail->InitHandle, rail->OpenHandle, Stream_Buffer(s), (UINT32)Stream_GetPosition(s), s);
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if (status != CHANNEL_RC_OK)
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{
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Stream_Free(s, TRUE);
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WLog_ERR(TAG, "pVirtualChannelWriteEx failed with %s [%08" PRIX32 "]",
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WTSErrorToString(status), status);
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}
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return status;
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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UINT rail_send_channel_data(railPlugin* rail, wStream* src)
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{
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wStream* s;
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size_t length;
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if (!rail || !src)
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return ERROR_INVALID_PARAMETER;
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length = Stream_GetPosition(src);
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s = Stream_New(NULL, length);
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if (!s)
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{
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WLog_ERR(TAG, "Stream_New failed!");
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return CHANNEL_RC_NO_MEMORY;
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}
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Stream_Write(s, Stream_Buffer(src), length);
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return rail_send(rail, s);
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}
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/**
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* Callback Interface
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*/
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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static UINT rail_client_execute(RailClientContext* context, const RAIL_EXEC_ORDER* exec)
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{
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char* exeOrFile;
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UINT error;
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railPlugin* rail;
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UINT16 flags;
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RAIL_UNICODE_STRING ruExeOrFile = { 0 };
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RAIL_UNICODE_STRING ruWorkingDir = { 0 };
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RAIL_UNICODE_STRING ruArguments = { 0 };
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if (!context || !exec)
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return ERROR_INVALID_PARAMETER;
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rail = (railPlugin*)context->handle;
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exeOrFile = exec->RemoteApplicationProgram;
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flags = exec->flags;
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if (!exeOrFile)
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return ERROR_INVALID_PARAMETER;
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if (!utf8_string_to_rail_string(exec->RemoteApplicationProgram,
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&ruExeOrFile) || /* RemoteApplicationProgram */
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!utf8_string_to_rail_string(exec->RemoteApplicationWorkingDir,
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&ruWorkingDir) || /* ShellWorkingDirectory */
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!utf8_string_to_rail_string(exec->RemoteApplicationArguments,
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&ruArguments)) /* RemoteApplicationCmdLine */
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error = ERROR_INTERNAL_ERROR;
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else
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error = rail_send_client_exec_order(rail, flags, &ruExeOrFile, &ruWorkingDir, &ruArguments);
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free(ruExeOrFile.string);
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free(ruWorkingDir.string);
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free(ruArguments.string);
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return error;
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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static UINT rail_client_activate(RailClientContext* context, const RAIL_ACTIVATE_ORDER* activate)
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{
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railPlugin* rail;
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if (!context || !activate)
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return ERROR_INVALID_PARAMETER;
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rail = (railPlugin*)context->handle;
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return rail_send_client_activate_order(rail, activate);
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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static UINT rail_send_client_sysparam(RailClientContext* context, RAIL_SYSPARAM_ORDER* sysparam)
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{
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wStream* s;
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size_t length = RAIL_SYSPARAM_ORDER_LENGTH;
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railPlugin* rail;
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UINT error;
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BOOL extendedSpiSupported;
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if (!context || !sysparam)
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return ERROR_INVALID_PARAMETER;
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rail = (railPlugin*)context->handle;
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switch (sysparam->param)
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{
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case SPI_SET_DRAG_FULL_WINDOWS:
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case SPI_SET_KEYBOARD_CUES:
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case SPI_SET_KEYBOARD_PREF:
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case SPI_SET_MOUSE_BUTTON_SWAP:
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length += 1;
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break;
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case SPI_SET_WORK_AREA:
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case SPI_DISPLAY_CHANGE:
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case SPI_TASKBAR_POS:
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length += 8;
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break;
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case SPI_SET_HIGH_CONTRAST:
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length += sysparam->highContrast.colorSchemeLength + 10;
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break;
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case SPI_SETFILTERKEYS:
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length += 20;
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break;
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case SPI_SETSTICKYKEYS:
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case SPI_SETCARETWIDTH:
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case SPI_SETTOGGLEKEYS:
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length += 4;
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break;
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default:
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return ERROR_BAD_ARGUMENTS;
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}
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s = rail_pdu_init(length);
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if (!s)
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{
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WLog_ERR(TAG, "rail_pdu_init failed!");
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return CHANNEL_RC_NO_MEMORY;
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}
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extendedSpiSupported = rail_is_extended_spi_supported(rail->channelFlags);
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if ((error = rail_write_sysparam_order(s, sysparam, extendedSpiSupported)))
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{
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WLog_ERR(TAG, "rail_write_client_sysparam_order failed with error %" PRIu32 "!", error);
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Stream_Free(s, TRUE);
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return error;
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}
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if ((error = rail_send_pdu(rail, s, TS_RAIL_ORDER_SYSPARAM)))
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{
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WLog_ERR(TAG, "rail_send_pdu failed with error %" PRIu32 "!", error);
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}
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Stream_Free(s, TRUE);
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return error;
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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static UINT rail_client_system_param(RailClientContext* context,
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const RAIL_SYSPARAM_ORDER* sysInParam)
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{
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UINT error = CHANNEL_RC_OK;
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RAIL_SYSPARAM_ORDER sysparam;
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if (!context || !sysInParam)
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return ERROR_INVALID_PARAMETER;
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sysparam = *sysInParam;
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if (sysparam.params & SPI_MASK_SET_HIGH_CONTRAST)
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{
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sysparam.param = SPI_SET_HIGH_CONTRAST;
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if ((error = rail_send_client_sysparam(context, &sysparam)))
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{
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WLog_ERR(TAG, "rail_send_client_sysparam failed with error %" PRIu32 "!", error);
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return error;
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}
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}
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if (sysparam.params & SPI_MASK_TASKBAR_POS)
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{
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sysparam.param = SPI_TASKBAR_POS;
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if ((error = rail_send_client_sysparam(context, &sysparam)))
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{
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WLog_ERR(TAG, "rail_send_client_sysparam failed with error %" PRIu32 "!", error);
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return error;
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}
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}
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if (sysparam.params & SPI_MASK_SET_MOUSE_BUTTON_SWAP)
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{
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sysparam.param = SPI_SET_MOUSE_BUTTON_SWAP;
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if ((error = rail_send_client_sysparam(context, &sysparam)))
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{
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WLog_ERR(TAG, "rail_send_client_sysparam failed with error %" PRIu32 "!", error);
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return error;
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}
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}
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if (sysparam.params & SPI_MASK_SET_KEYBOARD_PREF)
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{
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sysparam.param = SPI_SET_KEYBOARD_PREF;
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if ((error = rail_send_client_sysparam(context, &sysparam)))
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{
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WLog_ERR(TAG, "rail_send_client_sysparam failed with error %" PRIu32 "!", error);
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return error;
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}
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}
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if (sysparam.params & SPI_MASK_SET_DRAG_FULL_WINDOWS)
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{
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sysparam.param = SPI_SET_DRAG_FULL_WINDOWS;
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if ((error = rail_send_client_sysparam(context, &sysparam)))
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{
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WLog_ERR(TAG, "rail_send_client_sysparam failed with error %" PRIu32 "!", error);
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return error;
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}
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}
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if (sysparam.params & SPI_MASK_SET_KEYBOARD_CUES)
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{
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sysparam.param = SPI_SET_KEYBOARD_CUES;
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if ((error = rail_send_client_sysparam(context, &sysparam)))
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{
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WLog_ERR(TAG, "rail_send_client_sysparam failed with error %" PRIu32 "!", error);
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return error;
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}
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}
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if (sysparam.params & SPI_MASK_SET_WORK_AREA)
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{
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sysparam.param = SPI_SET_WORK_AREA;
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if ((error = rail_send_client_sysparam(context, &sysparam)))
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{
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WLog_ERR(TAG, "rail_send_client_sysparam failed with error %" PRIu32 "!", error);
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return error;
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}
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}
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return error;
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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static UINT rail_client_system_command(RailClientContext* context,
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const RAIL_SYSCOMMAND_ORDER* syscommand)
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{
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railPlugin* rail;
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if (!context || !syscommand)
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return ERROR_INVALID_PARAMETER;
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rail = (railPlugin*)context->handle;
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return rail_send_client_syscommand_order(rail, syscommand);
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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static UINT rail_client_handshake(RailClientContext* context, const RAIL_HANDSHAKE_ORDER* handshake)
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{
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railPlugin* rail;
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if (!context || !handshake)
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return ERROR_INVALID_PARAMETER;
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rail = (railPlugin*)context->handle;
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return rail_send_handshake_order(rail, handshake);
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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static UINT rail_client_notify_event(RailClientContext* context,
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const RAIL_NOTIFY_EVENT_ORDER* notifyEvent)
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{
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railPlugin* rail;
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if (!context || !notifyEvent)
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return ERROR_INVALID_PARAMETER;
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rail = (railPlugin*)context->handle;
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return rail_send_client_notify_event_order(rail, notifyEvent);
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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static UINT rail_client_window_move(RailClientContext* context,
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const RAIL_WINDOW_MOVE_ORDER* windowMove)
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{
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railPlugin* rail;
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if (!context || !windowMove)
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return ERROR_INVALID_PARAMETER;
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rail = (railPlugin*)context->handle;
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return rail_send_client_window_move_order(rail, windowMove);
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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static UINT rail_client_information(RailClientContext* context,
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const RAIL_CLIENT_STATUS_ORDER* clientStatus)
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{
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railPlugin* rail;
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if (!context || !clientStatus)
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return ERROR_INVALID_PARAMETER;
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rail = (railPlugin*)context->handle;
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return rail_send_client_status_order(rail, clientStatus);
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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static UINT rail_client_system_menu(RailClientContext* context, const RAIL_SYSMENU_ORDER* sysmenu)
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{
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railPlugin* rail;
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if (!context || !sysmenu)
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return ERROR_INVALID_PARAMETER;
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rail = (railPlugin*)context->handle;
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return rail_send_client_sysmenu_order(rail, sysmenu);
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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static UINT rail_client_language_bar_info(RailClientContext* context,
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const RAIL_LANGBAR_INFO_ORDER* langBarInfo)
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{
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railPlugin* rail;
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if (!context || !langBarInfo)
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return ERROR_INVALID_PARAMETER;
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rail = (railPlugin*)context->handle;
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return rail_send_client_langbar_info_order(rail, langBarInfo);
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}
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static UINT rail_client_language_ime_info(RailClientContext* context,
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const RAIL_LANGUAGEIME_INFO_ORDER* langImeInfo)
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{
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railPlugin* rail;
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if (!context || !langImeInfo)
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return ERROR_INVALID_PARAMETER;
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rail = (railPlugin*)context->handle;
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return rail_send_client_languageime_info_order(rail, langImeInfo);
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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static UINT rail_client_get_appid_request(RailClientContext* context,
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const RAIL_GET_APPID_REQ_ORDER* getAppIdReq)
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{
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railPlugin* rail;
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if (!context || !getAppIdReq || !context->handle)
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return ERROR_INVALID_PARAMETER;
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rail = (railPlugin*)context->handle;
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return rail_send_client_get_appid_req_order(rail, getAppIdReq);
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}
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static UINT rail_client_compartment_info(RailClientContext* context,
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const RAIL_COMPARTMENT_INFO_ORDER* compartmentInfo)
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{
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railPlugin* rail;
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if (!context || !compartmentInfo || !context->handle)
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return ERROR_INVALID_PARAMETER;
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rail = (railPlugin*)context->handle;
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return rail_send_client_compartment_info_order(rail, compartmentInfo);
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}
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static UINT rail_client_cloak(RailClientContext* context, const RAIL_CLOAK* cloak)
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{
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railPlugin* rail;
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if (!context || !cloak || !context->handle)
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return ERROR_INVALID_PARAMETER;
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rail = (railPlugin*)context->handle;
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return rail_send_client_cloak_order(rail, cloak);
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}
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static UINT rail_client_snap_arrange(RailClientContext* context, const RAIL_SNAP_ARRANGE* snap)
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{
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railPlugin* rail;
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if (!context || !snap || !context->handle)
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return ERROR_INVALID_PARAMETER;
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rail = (railPlugin*)context->handle;
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return rail_send_client_snap_arrange_order(rail, snap);
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}
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static VOID VCAPITYPE rail_virtual_channel_open_event_ex(LPVOID lpUserParam, DWORD openHandle,
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UINT event, LPVOID pData,
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UINT32 dataLength, UINT32 totalLength,
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UINT32 dataFlags)
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{
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UINT error = CHANNEL_RC_OK;
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railPlugin* rail = (railPlugin*)lpUserParam;
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switch (event)
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{
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case CHANNEL_EVENT_DATA_RECEIVED:
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if (!rail || (rail->OpenHandle != openHandle))
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{
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WLog_ERR(TAG, "error no match");
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return;
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}
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if ((error = channel_client_post_message(rail->MsgsHandle, pData, dataLength,
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totalLength, dataFlags)))
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{
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WLog_ERR(TAG,
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"rail_virtual_channel_event_data_received"
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" failed with error %" PRIu32 "!",
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error);
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}
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break;
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case CHANNEL_EVENT_WRITE_CANCELLED:
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case CHANNEL_EVENT_WRITE_COMPLETE:
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{
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wStream* s = (wStream*)pData;
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Stream_Free(s, TRUE);
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}
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break;
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case CHANNEL_EVENT_USER:
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break;
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}
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if (error && rail && rail->rdpcontext)
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setChannelError(rail->rdpcontext, error,
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"rail_virtual_channel_open_event reported an error");
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return;
|
|
}
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
static UINT rail_virtual_channel_event_connected(railPlugin* rail, LPVOID pData, UINT32 dataLength)
|
|
{
|
|
RailClientContext* context = rail_get_client_interface(rail);
|
|
UINT status = CHANNEL_RC_OK;
|
|
|
|
WINPR_ASSERT(rail);
|
|
|
|
if (context)
|
|
{
|
|
IFCALLRET(context->OnOpen, status, context, &rail->sendHandshake);
|
|
|
|
if (status != CHANNEL_RC_OK)
|
|
WLog_ERR(TAG, "context->OnOpen failed with %s [%08" PRIX32 "]",
|
|
WTSErrorToString(status), status);
|
|
}
|
|
rail->MsgsHandle = channel_client_create_handler(rail->rdpcontext, rail, rail_order_recv,
|
|
RAIL_SVC_CHANNEL_NAME);
|
|
if (!rail->MsgsHandle)
|
|
return ERROR_INTERNAL_ERROR;
|
|
|
|
return rail->channelEntryPoints.pVirtualChannelOpenEx(rail->InitHandle, &rail->OpenHandle,
|
|
rail->channelDef.name,
|
|
rail_virtual_channel_open_event_ex);
|
|
}
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
static UINT rail_virtual_channel_event_disconnected(railPlugin* rail)
|
|
{
|
|
UINT rc;
|
|
|
|
channel_client_quit_handler(rail->MsgsHandle);
|
|
if (rail->OpenHandle == 0)
|
|
return CHANNEL_RC_OK;
|
|
|
|
WINPR_ASSERT(rail->channelEntryPoints.pVirtualChannelCloseEx);
|
|
rc = rail->channelEntryPoints.pVirtualChannelCloseEx(rail->InitHandle, rail->OpenHandle);
|
|
|
|
if (CHANNEL_RC_OK != rc)
|
|
{
|
|
WLog_ERR(TAG, "pVirtualChannelCloseEx failed with %s [%08" PRIX32 "]", WTSErrorToString(rc),
|
|
rc);
|
|
return rc;
|
|
}
|
|
|
|
rail->OpenHandle = 0;
|
|
|
|
return CHANNEL_RC_OK;
|
|
}
|
|
|
|
static void rail_virtual_channel_event_terminated(railPlugin* rail)
|
|
{
|
|
rail->InitHandle = 0;
|
|
free(rail->context);
|
|
free(rail);
|
|
}
|
|
|
|
static VOID VCAPITYPE rail_virtual_channel_init_event_ex(LPVOID lpUserParam, LPVOID pInitHandle,
|
|
UINT event, LPVOID pData, UINT dataLength)
|
|
{
|
|
UINT error = CHANNEL_RC_OK;
|
|
railPlugin* rail = (railPlugin*)lpUserParam;
|
|
|
|
if (!rail || (rail->InitHandle != pInitHandle))
|
|
{
|
|
WLog_ERR(TAG, "error no match");
|
|
return;
|
|
}
|
|
|
|
switch (event)
|
|
{
|
|
case CHANNEL_EVENT_CONNECTED:
|
|
if ((error = rail_virtual_channel_event_connected(rail, pData, dataLength)))
|
|
WLog_ERR(TAG, "rail_virtual_channel_event_connected failed with error %" PRIu32 "!",
|
|
error);
|
|
|
|
break;
|
|
|
|
case CHANNEL_EVENT_DISCONNECTED:
|
|
if ((error = rail_virtual_channel_event_disconnected(rail)))
|
|
WLog_ERR(TAG,
|
|
"rail_virtual_channel_event_disconnected failed with error %" PRIu32 "!",
|
|
error);
|
|
|
|
break;
|
|
|
|
case CHANNEL_EVENT_TERMINATED:
|
|
rail_virtual_channel_event_terminated(rail);
|
|
break;
|
|
|
|
case CHANNEL_EVENT_ATTACHED:
|
|
case CHANNEL_EVENT_DETACHED:
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (error && rail->rdpcontext)
|
|
setChannelError(rail->rdpcontext, error,
|
|
"rail_virtual_channel_init_event_ex reported an error");
|
|
}
|
|
|
|
/* rail is always built-in */
|
|
#define VirtualChannelEntryEx rail_VirtualChannelEntryEx
|
|
|
|
FREERDP_ENTRY_POINT(BOOL VCAPITYPE VirtualChannelEntryEx(PCHANNEL_ENTRY_POINTS pEntryPoints,
|
|
PVOID pInitHandle))
|
|
{
|
|
UINT rc;
|
|
railPlugin* rail;
|
|
RailClientContext* context = NULL;
|
|
CHANNEL_ENTRY_POINTS_FREERDP_EX* pEntryPointsEx;
|
|
BOOL isFreerdp = FALSE;
|
|
rail = (railPlugin*)calloc(1, sizeof(railPlugin));
|
|
|
|
if (!rail)
|
|
{
|
|
WLog_ERR(TAG, "calloc failed!");
|
|
return FALSE;
|
|
}
|
|
|
|
/* Default to automatically replying to server handshakes */
|
|
rail->sendHandshake = TRUE;
|
|
rail->channelDef.options = CHANNEL_OPTION_INITIALIZED | CHANNEL_OPTION_ENCRYPT_RDP |
|
|
CHANNEL_OPTION_COMPRESS_RDP | CHANNEL_OPTION_SHOW_PROTOCOL;
|
|
sprintf_s(rail->channelDef.name, ARRAYSIZE(rail->channelDef.name), RAIL_SVC_CHANNEL_NAME);
|
|
pEntryPointsEx = (CHANNEL_ENTRY_POINTS_FREERDP_EX*)pEntryPoints;
|
|
|
|
if ((pEntryPointsEx->cbSize >= sizeof(CHANNEL_ENTRY_POINTS_FREERDP_EX)) &&
|
|
(pEntryPointsEx->MagicNumber == FREERDP_CHANNEL_MAGIC_NUMBER))
|
|
{
|
|
context = (RailClientContext*)calloc(1, sizeof(RailClientContext));
|
|
|
|
if (!context)
|
|
{
|
|
WLog_ERR(TAG, "calloc failed!");
|
|
free(rail);
|
|
return FALSE;
|
|
}
|
|
|
|
context->handle = (void*)rail;
|
|
context->custom = NULL;
|
|
context->ClientExecute = rail_client_execute;
|
|
context->ClientActivate = rail_client_activate;
|
|
context->ClientSystemParam = rail_client_system_param;
|
|
context->ClientSystemCommand = rail_client_system_command;
|
|
context->ClientHandshake = rail_client_handshake;
|
|
context->ClientNotifyEvent = rail_client_notify_event;
|
|
context->ClientWindowMove = rail_client_window_move;
|
|
context->ClientInformation = rail_client_information;
|
|
context->ClientSystemMenu = rail_client_system_menu;
|
|
context->ClientLanguageBarInfo = rail_client_language_bar_info;
|
|
context->ClientLanguageIMEInfo = rail_client_language_ime_info;
|
|
context->ClientGetAppIdRequest = rail_client_get_appid_request;
|
|
context->ClientSnapArrange = rail_client_snap_arrange;
|
|
context->ClientCloak = rail_client_cloak;
|
|
context->ClientCompartmentInfo = rail_client_compartment_info;
|
|
rail->rdpcontext = pEntryPointsEx->context;
|
|
rail->context = context;
|
|
isFreerdp = TRUE;
|
|
}
|
|
|
|
rail->log = WLog_Get("com.freerdp.channels.rail.client");
|
|
WLog_Print(rail->log, WLOG_DEBUG, "VirtualChannelEntryEx");
|
|
CopyMemory(&(rail->channelEntryPoints), pEntryPoints, sizeof(CHANNEL_ENTRY_POINTS_FREERDP_EX));
|
|
rail->InitHandle = pInitHandle;
|
|
rc = rail->channelEntryPoints.pVirtualChannelInitEx(
|
|
rail, context, pInitHandle, &rail->channelDef, 1, VIRTUAL_CHANNEL_VERSION_WIN2000,
|
|
rail_virtual_channel_init_event_ex);
|
|
|
|
if (CHANNEL_RC_OK != rc)
|
|
{
|
|
WLog_ERR(TAG, "failed with %s [%08" PRIX32 "]", WTSErrorToString(rc), rc);
|
|
goto error_out;
|
|
}
|
|
|
|
rail->channelEntryPoints.pInterface = context;
|
|
return TRUE;
|
|
error_out:
|
|
|
|
if (isFreerdp)
|
|
free(rail->context);
|
|
|
|
free(rail);
|
|
return FALSE;
|
|
}
|