/** * FreeRDP: A Remote Desktop Protocol Implementation * Remote Applications Integrated Locally (RAIL) Orders * * Copyright 2009 Marc-Andre Moreau * Copyright 2011 Roman Barabanov * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #include "rail_orders.h" static BOOL rail_read_unicode_string(wStream* s, RAIL_UNICODE_STRING* unicode_string) { UINT16 new_length; if (Stream_GetRemainingLength(s) < 2) return FALSE; Stream_Read_UINT16(s, new_length); /* cbString (2 bytes) */ if (Stream_GetRemainingLength(s) < new_length) return FALSE; if (!unicode_string->string) { unicode_string->string = (BYTE*) malloc(new_length); if (!unicode_string->string) return FALSE; unicode_string->length = new_length; } else { BYTE *new_str; new_str = (BYTE*) realloc(unicode_string->string, new_length); if (!new_str) return FALSE; unicode_string->string = new_str; unicode_string->length = new_length; } Stream_Read(s, unicode_string->string, unicode_string->length); return TRUE; } static void rail_write_unicode_string(wStream* s, RAIL_UNICODE_STRING* unicode_string) { Stream_EnsureRemainingCapacity(s, 2 + unicode_string->length); Stream_Write_UINT16(s, unicode_string->length); /* cbString (2 bytes) */ Stream_Write(s, unicode_string->string, unicode_string->length); /* string */ } static void rail_write_unicode_string_value(wStream* s, RAIL_UNICODE_STRING* unicode_string) { if (unicode_string->length > 0) { Stream_EnsureRemainingCapacity(s, unicode_string->length); Stream_Write(s, unicode_string->string, unicode_string->length); /* string */ } } void rail_send_pdu(railPlugin* rail, wStream* s, UINT16 orderType) { UINT16 orderLength; orderLength = (UINT16) Stream_GetPosition(s); Stream_SetPosition(s, 0); rail_write_pdu_header(s, orderType, orderLength); Stream_SetPosition(s, orderLength); WLog_Print(rail->log, WLOG_DEBUG, "Sending %s PDU, length: %d", RAIL_ORDER_TYPE_STRINGS[((orderType & 0xF0) >> 3) + (orderType & 0x0F)], orderLength); rail_send_channel_data(rail, Stream_Buffer(s), orderLength); } void rail_write_high_contrast(wStream* s, RAIL_HIGH_CONTRAST* highContrast) { highContrast->colorSchemeLength = highContrast->colorScheme.length + 2; Stream_Write_UINT32(s, highContrast->flags); /* flags (4 bytes) */ Stream_Write_UINT32(s, highContrast->colorSchemeLength); /* colorSchemeLength (4 bytes) */ rail_write_unicode_string(s, &highContrast->colorScheme); /* colorScheme */ } BOOL rail_read_server_exec_result_order(wStream* s, RAIL_EXEC_RESULT_ORDER* execResult) { if (Stream_GetRemainingLength(s) < 8) return FALSE; Stream_Read_UINT16(s, execResult->flags); /* flags (2 bytes) */ Stream_Read_UINT16(s, execResult->execResult); /* execResult (2 bytes) */ Stream_Read_UINT32(s, execResult->rawResult); /* rawResult (4 bytes) */ Stream_Seek_UINT16(s); /* padding (2 bytes) */ return rail_read_unicode_string(s, &execResult->exeOrFile); /* exeOrFile */ } BOOL rail_read_server_sysparam_order(wStream* s, RAIL_SYSPARAM_ORDER* sysparam) { BYTE body; if (Stream_GetRemainingLength(s) < 5) return FALSE; Stream_Read_UINT32(s, sysparam->param); /* systemParam (4 bytes) */ Stream_Read_UINT8(s, body); /* body (1 byte) */ switch (sysparam->param) { case SPI_SET_SCREEN_SAVE_ACTIVE: sysparam->setScreenSaveActive = (body != 0) ? TRUE : FALSE; break; case SPI_SET_SCREEN_SAVE_SECURE: sysparam->setScreenSaveSecure = (body != 0) ? TRUE : FALSE; break; default: break; } return TRUE; } BOOL rail_read_server_minmaxinfo_order(wStream* s, RAIL_MINMAXINFO_ORDER* minmaxinfo) { if (Stream_GetRemainingLength(s) < 20) return FALSE; Stream_Read_UINT32(s, minmaxinfo->windowId); /* windowId (4 bytes) */ Stream_Read_UINT16(s, minmaxinfo->maxWidth); /* maxWidth (2 bytes) */ Stream_Read_UINT16(s, minmaxinfo->maxHeight); /* maxHeight (2 bytes) */ Stream_Read_UINT16(s, minmaxinfo->maxPosX); /* maxPosX (2 bytes) */ Stream_Read_UINT16(s, minmaxinfo->maxPosY); /* maxPosY (2 bytes) */ Stream_Read_UINT16(s, minmaxinfo->minTrackWidth); /* minTrackWidth (2 bytes) */ Stream_Read_UINT16(s, minmaxinfo->minTrackHeight); /* minTrackHeight (2 bytes) */ Stream_Read_UINT16(s, minmaxinfo->maxTrackWidth); /* maxTrackWidth (2 bytes) */ Stream_Read_UINT16(s, minmaxinfo->maxTrackHeight); /* maxTrackHeight (2 bytes) */ return TRUE; } BOOL rail_read_server_localmovesize_order(wStream* s, RAIL_LOCALMOVESIZE_ORDER* localMoveSize) { UINT16 isMoveSizeStart; if (Stream_GetRemainingLength(s) < 12) return FALSE; Stream_Read_UINT32(s, localMoveSize->windowId); /* windowId (4 bytes) */ Stream_Read_UINT16(s, isMoveSizeStart); /* isMoveSizeStart (2 bytes) */ localMoveSize->isMoveSizeStart = (isMoveSizeStart != 0) ? TRUE : FALSE; Stream_Read_UINT16(s, localMoveSize->moveSizeType); /* moveSizeType (2 bytes) */ Stream_Read_UINT16(s, localMoveSize->posX); /* posX (2 bytes) */ Stream_Read_UINT16(s, localMoveSize->posY); /* posY (2 bytes) */ return TRUE; } BOOL rail_read_server_get_appid_resp_order(wStream* s, RAIL_GET_APPID_RESP_ORDER* getAppidResp) { if (Stream_GetRemainingLength(s) < 516) return FALSE; Stream_Read_UINT32(s, getAppidResp->windowId); /* windowId (4 bytes) */ Stream_Read(s, (BYTE*) &(getAppidResp->applicationId), 512); /* applicationId (256 UNICODE chars) */ return TRUE; } BOOL rail_read_langbar_info_order(wStream* s, RAIL_LANGBAR_INFO_ORDER* langbarInfo) { if (Stream_GetRemainingLength(s) < 4) return FALSE; Stream_Read_UINT32(s, langbarInfo->languageBarStatus); /* languageBarStatus (4 bytes) */ return TRUE; } void rail_write_client_status_order(wStream* s, RAIL_CLIENT_STATUS_ORDER* clientStatus) { Stream_Write_UINT32(s, clientStatus->flags); /* flags (4 bytes) */ } void rail_write_client_exec_order(wStream* s, RAIL_EXEC_ORDER* exec) { Stream_Write_UINT16(s, exec->flags); /* flags (2 bytes) */ Stream_Write_UINT16(s, exec->exeOrFile.length); /* exeOrFileLength (2 bytes) */ Stream_Write_UINT16(s, exec->workingDir.length); /* workingDirLength (2 bytes) */ Stream_Write_UINT16(s, exec->arguments.length); /* argumentsLength (2 bytes) */ rail_write_unicode_string_value(s, &exec->exeOrFile); /* exeOrFile */ rail_write_unicode_string_value(s, &exec->workingDir); /* workingDir */ rail_write_unicode_string_value(s, &exec->arguments); /* arguments */ } void rail_write_client_sysparam_order(wStream* s, RAIL_SYSPARAM_ORDER* sysparam) { BYTE body; Stream_Write_UINT32(s, sysparam->param); /* systemParam (4 bytes) */ switch (sysparam->param) { case SPI_SET_DRAG_FULL_WINDOWS: body = sysparam->dragFullWindows; Stream_Write_UINT8(s, body); break; case SPI_SET_KEYBOARD_CUES: body = sysparam->keyboardCues; Stream_Write_UINT8(s, body); break; case SPI_SET_KEYBOARD_PREF: body = sysparam->keyboardPref; Stream_Write_UINT8(s, body); break; case SPI_SET_MOUSE_BUTTON_SWAP: body = sysparam->mouseButtonSwap; Stream_Write_UINT8(s, body); break; case SPI_SET_WORK_AREA: Stream_Write_UINT16(s, sysparam->workArea.left); /* left (2 bytes) */ Stream_Write_UINT16(s, sysparam->workArea.top); /* top (2 bytes) */ Stream_Write_UINT16(s, sysparam->workArea.right); /* right (2 bytes) */ Stream_Write_UINT16(s, sysparam->workArea.bottom); /* bottom (2 bytes) */ break; case SPI_DISPLAY_CHANGE: Stream_Write_UINT16(s, sysparam->displayChange.left); /* left (2 bytes) */ Stream_Write_UINT16(s, sysparam->displayChange.top); /* top (2 bytes) */ Stream_Write_UINT16(s, sysparam->displayChange.right); /* right (2 bytes) */ Stream_Write_UINT16(s, sysparam->displayChange.bottom); /* bottom (2 bytes) */ break; case SPI_TASKBAR_POS: Stream_Write_UINT16(s, sysparam->taskbarPos.left); /* left (2 bytes) */ Stream_Write_UINT16(s, sysparam->taskbarPos.top); /* top (2 bytes) */ Stream_Write_UINT16(s, sysparam->taskbarPos.right); /* right (2 bytes) */ Stream_Write_UINT16(s, sysparam->taskbarPos.bottom); /* bottom (2 bytes) */ break; case SPI_SET_HIGH_CONTRAST: rail_write_high_contrast(s, &sysparam->highContrast); break; } } void rail_write_client_activate_order(wStream* s, RAIL_ACTIVATE_ORDER* activate) { BYTE enabled; Stream_Write_UINT32(s, activate->windowId); /* windowId (4 bytes) */ enabled = activate->enabled; Stream_Write_UINT8(s, enabled); /* enabled (1 byte) */ } void rail_write_client_sysmenu_order(wStream* s, RAIL_SYSMENU_ORDER* sysmenu) { Stream_Write_UINT32(s, sysmenu->windowId); /* windowId (4 bytes) */ Stream_Write_UINT16(s, sysmenu->left); /* left (2 bytes) */ Stream_Write_UINT16(s, sysmenu->top); /* top (2 bytes) */ } void rail_write_client_syscommand_order(wStream* s, RAIL_SYSCOMMAND_ORDER* syscommand) { Stream_Write_UINT32(s, syscommand->windowId); /* windowId (4 bytes) */ Stream_Write_UINT16(s, syscommand->command); /* command (2 bytes) */ } void rail_write_client_notify_event_order(wStream* s, RAIL_NOTIFY_EVENT_ORDER* notifyEvent) { Stream_Write_UINT32(s, notifyEvent->windowId); /* windowId (4 bytes) */ Stream_Write_UINT32(s, notifyEvent->notifyIconId); /* notifyIconId (4 bytes) */ Stream_Write_UINT32(s, notifyEvent->message); /* notifyIconId (4 bytes) */ } void rail_write_client_window_move_order(wStream* s, RAIL_WINDOW_MOVE_ORDER* windowMove) { Stream_Write_UINT32(s, windowMove->windowId); /* windowId (4 bytes) */ Stream_Write_UINT16(s, windowMove->left); /* left (2 bytes) */ Stream_Write_UINT16(s, windowMove->top); /* top (2 bytes) */ Stream_Write_UINT16(s, windowMove->right); /* right (2 bytes) */ Stream_Write_UINT16(s, windowMove->bottom); /* bottom (2 bytes) */ } void rail_write_client_get_appid_req_order(wStream* s, RAIL_GET_APPID_REQ_ORDER* getAppidReq) { Stream_Write_UINT32(s, getAppidReq->windowId); /* windowId (4 bytes) */ } void rail_write_langbar_info_order(wStream* s, RAIL_LANGBAR_INFO_ORDER* langbarInfo) { Stream_Write_UINT32(s, langbarInfo->languageBarStatus); /* languageBarStatus (4 bytes) */ } BOOL rail_recv_handshake_order(railPlugin* rail, RAIL_HANDSHAKE_ORDER* handshake, wStream* s) { RailClientContext* context = rail_get_client_interface(rail); if (!rail_read_handshake_order(s, handshake)) return FALSE; if (context->custom) { IFCALL(context->ServerHandshake, context, handshake); return TRUE; } return TRUE; } BOOL rail_recv_handshake_ex_order(railPlugin* rail, RAIL_HANDSHAKE_EX_ORDER* handshakeEx, wStream* s) { RailClientContext* context = rail_get_client_interface(rail); if (!rail_read_handshake_ex_order(s, handshakeEx)) return FALSE; if (context->custom) { IFCALL(context->ClientHandshakeEx, context, handshakeEx); } return TRUE; } BOOL rail_recv_exec_result_order(railPlugin* rail, RAIL_EXEC_RESULT_ORDER* execResult, wStream* s) { RailClientContext* context = rail_get_client_interface(rail); ZeroMemory(execResult, sizeof(RAIL_EXEC_RESULT_ORDER)); if (!rail_read_server_exec_result_order(s, execResult)) return FALSE; if (context->custom) { IFCALL(context->ServerExecuteResult, context, execResult); } return TRUE; } BOOL rail_recv_server_sysparam_order(railPlugin* rail, RAIL_SYSPARAM_ORDER* sysparam, wStream* s) { RailClientContext* context = rail_get_client_interface(rail); if (!rail_read_server_sysparam_order(s, sysparam)) return FALSE; if (context->custom) { IFCALL(context->ServerSystemParam, context, sysparam); } return TRUE; } BOOL rail_recv_server_minmaxinfo_order(railPlugin* rail, RAIL_MINMAXINFO_ORDER* minMaxInfo, wStream* s) { RailClientContext* context = rail_get_client_interface(rail); if (!rail_read_server_minmaxinfo_order(s, minMaxInfo)) return FALSE; if (context->custom) { IFCALL(context->ServerMinMaxInfo, context, minMaxInfo); } return TRUE; } BOOL rail_recv_server_localmovesize_order(railPlugin* rail, RAIL_LOCALMOVESIZE_ORDER* localMoveSize, wStream* s) { RailClientContext* context = rail_get_client_interface(rail); if (!rail_read_server_localmovesize_order(s, localMoveSize)) return FALSE; if (context->custom) { IFCALL(context->ServerLocalMoveSize, context, localMoveSize); } return TRUE; } BOOL rail_recv_server_get_appid_resp_order(railPlugin* rail, RAIL_GET_APPID_RESP_ORDER* getAppIdResp, wStream* s) { RailClientContext* context = rail_get_client_interface(rail); if (!rail_read_server_get_appid_resp_order(s, getAppIdResp)) return FALSE; if (context->custom) { IFCALL(context->ServerGetAppIdResponse, context, getAppIdResp); } return TRUE; } BOOL rail_recv_langbar_info_order(railPlugin* rail, RAIL_LANGBAR_INFO_ORDER* langBarInfo, wStream* s) { RailClientContext* context = rail_get_client_interface(rail); if (!rail_read_langbar_info_order(s, langBarInfo)) return FALSE; if (context->custom) { IFCALL(context->ServerLanguageBarInfo, context, langBarInfo); } return TRUE; } BOOL rail_order_recv(railPlugin* rail, wStream* s) { UINT16 orderType; UINT16 orderLength; if (!rail_read_pdu_header(s, &orderType, &orderLength)) return FALSE; WLog_Print(rail->log, WLOG_DEBUG, "Received %s PDU, length: %d", RAIL_ORDER_TYPE_STRINGS[((orderType & 0xF0) >> 3) + (orderType & 0x0F)], orderLength); switch (orderType) { case RDP_RAIL_ORDER_HANDSHAKE: { RAIL_HANDSHAKE_ORDER handshake; return rail_recv_handshake_order(rail, &handshake, s); } case RDP_RAIL_ORDER_HANDSHAKE_EX: { RAIL_HANDSHAKE_EX_ORDER handshakeEx; return rail_recv_handshake_ex_order(rail, &handshakeEx, s); } case RDP_RAIL_ORDER_EXEC_RESULT: { RAIL_EXEC_RESULT_ORDER execResult; return rail_recv_exec_result_order(rail, &execResult, s); } case RDP_RAIL_ORDER_SYSPARAM: { RAIL_SYSPARAM_ORDER sysparam; return rail_recv_server_sysparam_order(rail, &sysparam, s); } case RDP_RAIL_ORDER_MINMAXINFO: { RAIL_MINMAXINFO_ORDER minMaxInfo; return rail_recv_server_minmaxinfo_order(rail, &minMaxInfo, s); } case RDP_RAIL_ORDER_LOCALMOVESIZE: { RAIL_LOCALMOVESIZE_ORDER localMoveSize; return rail_recv_server_localmovesize_order(rail, &localMoveSize, s); } case RDP_RAIL_ORDER_GET_APPID_RESP: { RAIL_GET_APPID_RESP_ORDER getAppIdResp; return rail_recv_server_get_appid_resp_order(rail, &getAppIdResp, s); } case RDP_RAIL_ORDER_LANGBARINFO: { RAIL_LANGBAR_INFO_ORDER langBarInfo; return rail_recv_langbar_info_order(rail, &langBarInfo, s); } default: WLog_ERR(TAG, "Unknown RAIL PDU order reveived."); break; } return TRUE; } void rail_send_handshake_order(railPlugin* rail, RAIL_HANDSHAKE_ORDER* handshake) { wStream* s; s = rail_pdu_init(RAIL_HANDSHAKE_ORDER_LENGTH); rail_write_handshake_order(s, handshake); rail_send_pdu(rail, s, RDP_RAIL_ORDER_HANDSHAKE); Stream_Free(s, TRUE); } void rail_send_handshake_ex_order(railPlugin* rail, RAIL_HANDSHAKE_EX_ORDER* handshakeEx) { wStream* s; s = rail_pdu_init(RAIL_HANDSHAKE_EX_ORDER_LENGTH); rail_write_handshake_ex_order(s, handshakeEx); rail_send_pdu(rail, s, RDP_RAIL_ORDER_HANDSHAKE_EX); Stream_Free(s, TRUE); } void rail_send_client_status_order(railPlugin* rail, RAIL_CLIENT_STATUS_ORDER* clientStatus) { wStream* s; s = rail_pdu_init(RAIL_CLIENT_STATUS_ORDER_LENGTH); rail_write_client_status_order(s, clientStatus); rail_send_pdu(rail, s, RDP_RAIL_ORDER_CLIENTSTATUS); Stream_Free(s, TRUE); } void rail_send_client_exec_order(railPlugin* rail, RAIL_EXEC_ORDER* exec) { wStream* s; int length; length = RAIL_EXEC_ORDER_LENGTH + exec->exeOrFile.length + exec->workingDir.length + exec->arguments.length; s = rail_pdu_init(RAIL_EXEC_ORDER_LENGTH); rail_write_client_exec_order(s, exec); rail_send_pdu(rail, s, RDP_RAIL_ORDER_EXEC); Stream_Free(s, TRUE); } void rail_send_client_sysparam_order(railPlugin* rail, RAIL_SYSPARAM_ORDER* sysparam) { wStream* s; int length; length = RAIL_SYSPARAM_ORDER_LENGTH; switch (sysparam->param) { case SPI_SET_DRAG_FULL_WINDOWS: case SPI_SET_KEYBOARD_CUES: case SPI_SET_KEYBOARD_PREF: case SPI_SET_MOUSE_BUTTON_SWAP: length += 1; break; case SPI_SET_WORK_AREA: case SPI_DISPLAY_CHANGE: case SPI_TASKBAR_POS: length += 8; break; case SPI_SET_HIGH_CONTRAST: length += sysparam->highContrast.colorSchemeLength + 10; break; } s = rail_pdu_init(RAIL_SYSPARAM_ORDER_LENGTH + 8); rail_write_client_sysparam_order(s, sysparam); rail_send_pdu(rail, s, RDP_RAIL_ORDER_SYSPARAM); Stream_Free(s, TRUE); } void rail_send_client_sysparams_order(railPlugin* rail, RAIL_SYSPARAM_ORDER* sysparam) { if (sysparam->params & SPI_MASK_SET_HIGH_CONTRAST) { sysparam->param = SPI_SET_HIGH_CONTRAST; rail_send_client_sysparam_order(rail, sysparam); } if (sysparam->params & SPI_MASK_TASKBAR_POS) { sysparam->param = SPI_TASKBAR_POS; rail_send_client_sysparam_order(rail, sysparam); } if (sysparam->params & SPI_MASK_SET_MOUSE_BUTTON_SWAP) { sysparam->param = SPI_SET_MOUSE_BUTTON_SWAP; rail_send_client_sysparam_order(rail, sysparam); } if (sysparam->params & SPI_MASK_SET_KEYBOARD_PREF) { sysparam->param = SPI_SET_KEYBOARD_PREF; rail_send_client_sysparam_order(rail, sysparam); } if (sysparam->params & SPI_MASK_SET_DRAG_FULL_WINDOWS) { sysparam->param = SPI_SET_DRAG_FULL_WINDOWS; rail_send_client_sysparam_order(rail, sysparam); } if (sysparam->params & SPI_MASK_SET_KEYBOARD_CUES) { sysparam->param = SPI_SET_KEYBOARD_CUES; rail_send_client_sysparam_order(rail, sysparam); } if (sysparam->params & SPI_MASK_SET_WORK_AREA) { sysparam->param = SPI_SET_WORK_AREA; rail_send_client_sysparam_order(rail, sysparam); } } void rail_send_client_activate_order(railPlugin* rail, RAIL_ACTIVATE_ORDER* activate) { wStream* s; s = rail_pdu_init(RAIL_ACTIVATE_ORDER_LENGTH); rail_write_client_activate_order(s, activate); rail_send_pdu(rail, s, RDP_RAIL_ORDER_ACTIVATE); Stream_Free(s, TRUE); } void rail_send_client_sysmenu_order(railPlugin* rail, RAIL_SYSMENU_ORDER* sysmenu) { wStream* s; s = rail_pdu_init(RAIL_SYSMENU_ORDER_LENGTH); rail_write_client_sysmenu_order(s, sysmenu); rail_send_pdu(rail, s, RDP_RAIL_ORDER_SYSMENU); Stream_Free(s, TRUE); } void rail_send_client_syscommand_order(railPlugin* rail, RAIL_SYSCOMMAND_ORDER* syscommand) { wStream* s; s = rail_pdu_init(RAIL_SYSCOMMAND_ORDER_LENGTH); rail_write_client_syscommand_order(s, syscommand); rail_send_pdu(rail, s, RDP_RAIL_ORDER_SYSCOMMAND); Stream_Free(s, TRUE); } void rail_send_client_notify_event_order(railPlugin* rail, RAIL_NOTIFY_EVENT_ORDER* notifyEvent) { wStream* s; s = rail_pdu_init(RAIL_NOTIFY_EVENT_ORDER_LENGTH); rail_write_client_notify_event_order(s, notifyEvent); rail_send_pdu(rail, s, RDP_RAIL_ORDER_NOTIFY_EVENT); Stream_Free(s, TRUE); } void rail_send_client_window_move_order(railPlugin* rail, RAIL_WINDOW_MOVE_ORDER* windowMove) { wStream* s; s = rail_pdu_init(RAIL_WINDOW_MOVE_ORDER_LENGTH); rail_write_client_window_move_order(s, windowMove); rail_send_pdu(rail, s, RDP_RAIL_ORDER_WINDOWMOVE); Stream_Free(s, TRUE); } void rail_send_client_get_appid_req_order(railPlugin* rail, RAIL_GET_APPID_REQ_ORDER* getAppIdReq) { wStream* s; s = rail_pdu_init(RAIL_GET_APPID_REQ_ORDER_LENGTH); rail_write_client_get_appid_req_order(s, getAppIdReq); rail_send_pdu(rail, s, RDP_RAIL_ORDER_GET_APPID_REQ); Stream_Free(s, TRUE); } void rail_send_client_langbar_info_order(railPlugin* rail, RAIL_LANGBAR_INFO_ORDER* langBarInfo) { wStream* s; s = rail_pdu_init(RAIL_LANGBAR_INFO_ORDER_LENGTH); rail_write_langbar_info_order(s, langBarInfo); rail_send_pdu(rail, s, RDP_RAIL_ORDER_LANGBARINFO); Stream_Free(s, TRUE); }