52405a3e79
All return values are UINT now.
781 lines
18 KiB
C
781 lines
18 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* FreeRDP Core
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*
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* Copyright 2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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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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*
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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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "rdp.h"
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#include "input.h"
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#include "update.h"
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#include "surface.h"
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#include "transport.h"
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#include "connection.h"
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#include "message.h"
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#include <assert.h>
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#include <winpr/string.h>
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#include <winpr/stream.h>
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#include <winpr/wtsapi.h>
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#include <freerdp/freerdp.h>
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#include <freerdp/error.h>
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#include <freerdp/event.h>
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#include <freerdp/locale/keyboard.h>
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#include <freerdp/channels/channels.h>
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#include <freerdp/version.h>
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#include <freerdp/log.h>
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#define TAG FREERDP_TAG("core")
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/* connectErrorCode is 'extern' in error.h. See comment there.*/
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/** Creates a new connection based on the settings found in the "instance" parameter
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* It will use the callbacks registered on the structure to process the pre/post connect operations
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* that the caller requires.
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* @see struct rdp_freerdp in freerdp.h
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*
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* @param instance - pointer to a rdp_freerdp structure that contains base information to establish the connection.
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* On return, this function will be initialized with the new connection's settings.
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*
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* @return TRUE if successful. FALSE otherwise.
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*
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*/
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BOOL freerdp_connect(freerdp* instance)
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{
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rdpRdp* rdp;
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BOOL status = TRUE;
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rdpSettings* settings;
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ConnectionResultEventArgs e;
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/* We always set the return code to 0 before we start the connect sequence*/
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connectErrorCode = 0;
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freerdp_set_last_error(instance->context, FREERDP_ERROR_SUCCESS);
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rdp = instance->context->rdp;
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settings = instance->settings;
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instance->context->codecs = codecs_new(instance->context);
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IFCALLRET(instance->PreConnect, status, instance);
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if (settings->KeyboardLayout == KBD_JAPANESE_INPUT_SYSTEM_MS_IME2002)
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{
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settings->KeyboardType = 7;
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settings->KeyboardSubType = 2;
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settings->KeyboardFunctionKey = 12;
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}
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if (!status)
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{
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if (!freerdp_get_last_error(rdp->context))
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freerdp_set_last_error(instance->context, FREERDP_ERROR_PRE_CONNECT_FAILED);
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WLog_ERR(TAG, "freerdp_pre_connect failed");
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goto freerdp_connect_finally;
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}
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status = rdp_client_connect(rdp);
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/* --authonly tests the connection without a UI */
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if (instance->settings->AuthenticationOnly)
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{
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WLog_ERR(TAG, "Authentication only, exit status %d", !status);
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goto freerdp_connect_finally;
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}
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if (status)
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{
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if (instance->settings->DumpRemoteFx)
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{
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instance->update->pcap_rfx = pcap_open(instance->settings->DumpRemoteFxFile, TRUE);
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if (instance->update->pcap_rfx)
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instance->update->dump_rfx = TRUE;
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}
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IFCALLRET(instance->PostConnect, status, instance);
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if (!status || !update_post_connect(instance->update))
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{
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WLog_ERR(TAG, "freerdp_post_connect failed");
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if (!freerdp_get_last_error(rdp->context))
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freerdp_set_last_error(instance->context, FREERDP_ERROR_POST_CONNECT_FAILED);
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goto freerdp_connect_finally;
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}
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if (instance->settings->PlayRemoteFx)
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{
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wStream* s;
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rdpUpdate* update;
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pcap_record record;
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update = instance->update;
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update->pcap_rfx = pcap_open(settings->PlayRemoteFxFile, FALSE);
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if (!update->pcap_rfx)
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{
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status = FALSE;
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goto freerdp_connect_finally;
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}
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else
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{
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update->play_rfx = TRUE;
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}
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while (pcap_has_next_record(update->pcap_rfx))
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{
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pcap_get_next_record_header(update->pcap_rfx, &record);
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if (!(s = StreamPool_Take(rdp->transport->ReceivePool, record.length)))
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break;
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record.data = Stream_Buffer(s);
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pcap_get_next_record_content(update->pcap_rfx, &record);
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Stream_SetLength(s,record.length);
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Stream_SetPosition(s, 0);
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update->BeginPaint(update->context);
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update_recv_surfcmds(update, Stream_Length(s) , s);
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update->EndPaint(update->context);
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Stream_Release(s);
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}
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pcap_close(update->pcap_rfx);
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update->pcap_rfx = NULL;
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status = TRUE;
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goto freerdp_connect_finally;
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}
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}
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if (rdp->errorInfo == ERRINFO_SERVER_INSUFFICIENT_PRIVILEGES)
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freerdp_set_last_error(instance->context, FREERDP_ERROR_INSUFFICIENT_PRIVILEGES);
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SetEvent(rdp->transport->connectedEvent);
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freerdp_connect_finally:
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EventArgsInit(&e, "freerdp");
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e.result = status ? 0 : -1;
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PubSub_OnConnectionResult(instance->context->pubSub, instance->context, &e);
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return status;
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}
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BOOL freerdp_get_fds(freerdp* instance, void** rfds, int* rcount, void** wfds, int* wcount)
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{
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rdpRdp* rdp = instance->context->rdp;
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transport_get_fds(rdp->transport, rfds, rcount);
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return TRUE;
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}
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BOOL freerdp_check_fds(freerdp* instance)
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{
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int status;
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rdpRdp* rdp;
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if (!instance)
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return FALSE;
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if (!instance->context)
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return FALSE;
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if (!instance->context->rdp)
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return FALSE;
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rdp = instance->context->rdp;
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status = rdp_check_fds(rdp);
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if (status < 0)
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{
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TerminateEventArgs e;
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rdpContext* context = instance->context;
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WLog_DBG(TAG, "rdp_check_fds() - %i", status);
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EventArgsInit(&e, "freerdp");
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e.code = 0;
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PubSub_OnTerminate(context->pubSub, context, &e);
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return FALSE;
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}
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return TRUE;
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}
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DWORD freerdp_get_event_handles(rdpContext* context, HANDLE* events, DWORD count)
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{
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DWORD nCount = 0;
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nCount += transport_get_event_handles(context->rdp->transport, events, count);
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if (nCount == 0)
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return 0;
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if (events && (nCount < count + 1))
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{
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events[nCount++] = freerdp_channels_get_event_handle(context->instance);
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events[nCount++] = getChannelErrorEventHandle(context);
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}
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else
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return 0;
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return nCount;
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}
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BOOL freerdp_check_event_handles(rdpContext* context)
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{
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BOOL status;
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status = freerdp_check_fds(context->instance);
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if (!status)
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{
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WLog_ERR(TAG, "freerdp_check_fds() failed - %i", status);
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return FALSE;
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}
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status = freerdp_channels_check_fds(context->channels, context->instance);
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if (!status)
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{
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WLog_ERR(TAG, "freerdp_channels_check_fds() failed - %i", status);
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return FALSE;
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}
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if (!status)
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return FALSE;
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status = checkChannelErrorEvent(context);
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return status;
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}
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wMessageQueue* freerdp_get_message_queue(freerdp* instance, DWORD id)
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{
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wMessageQueue* queue = NULL;
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switch (id)
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{
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case FREERDP_UPDATE_MESSAGE_QUEUE:
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queue = instance->update->queue;
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break;
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case FREERDP_INPUT_MESSAGE_QUEUE:
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queue = instance->input->queue;
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break;
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}
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return queue;
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}
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HANDLE freerdp_get_message_queue_event_handle(freerdp* instance, DWORD id)
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{
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HANDLE event = NULL;
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wMessageQueue* queue = NULL;
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queue = freerdp_get_message_queue(instance, id);
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if (queue)
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event = MessageQueue_Event(queue);
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return event;
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}
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int freerdp_message_queue_process_message(freerdp* instance, DWORD id, wMessage* message)
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{
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int status = -1;
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switch (id)
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{
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case FREERDP_UPDATE_MESSAGE_QUEUE:
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status = update_message_queue_process_message(instance->update, message);
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break;
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case FREERDP_INPUT_MESSAGE_QUEUE:
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status = input_message_queue_process_message(instance->input, message);
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break;
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}
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return status;
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}
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int freerdp_message_queue_process_pending_messages(freerdp* instance, DWORD id)
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{
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int status = -1;
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switch (id)
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{
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case FREERDP_UPDATE_MESSAGE_QUEUE:
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status = update_message_queue_process_pending_messages(instance->update);
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break;
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case FREERDP_INPUT_MESSAGE_QUEUE:
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status = input_message_queue_process_pending_messages(instance->input);
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break;
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}
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return status;
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}
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static int freerdp_send_channel_data(freerdp* instance, UINT16 channelId, BYTE* data, int size)
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{
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return rdp_send_channel_data(instance->context->rdp, channelId, data, size);
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}
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BOOL freerdp_disconnect(freerdp* instance)
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{
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rdpRdp* rdp;
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rdp = instance->context->rdp;
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rdp_client_disconnect(rdp);
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update_post_disconnect(instance->update);
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IFCALL(instance->PostDisconnect, instance);
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if (instance->update->pcap_rfx)
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{
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instance->update->dump_rfx = FALSE;
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pcap_close(instance->update->pcap_rfx);
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instance->update->pcap_rfx = NULL;
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}
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codecs_free(instance->context->codecs);
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return TRUE;
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}
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BOOL freerdp_reconnect(freerdp* instance)
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{
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BOOL status;
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rdpRdp* rdp = instance->context->rdp;
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status = rdp_client_reconnect(rdp);
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return status;
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}
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BOOL freerdp_shall_disconnect(freerdp* instance)
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{
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return instance->context->rdp->disconnect;
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}
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FREERDP_API BOOL freerdp_focus_required(freerdp* instance)
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{
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rdpRdp* rdp;
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BOOL bRetCode = FALSE;
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rdp = instance->context->rdp;
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if (rdp->resendFocus)
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{
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bRetCode = TRUE;
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rdp->resendFocus = FALSE;
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}
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return bRetCode;
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}
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void freerdp_set_focus(freerdp* instance)
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{
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rdpRdp* rdp;
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rdp = instance->context->rdp;
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rdp->resendFocus = TRUE;
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}
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void freerdp_get_version(int* major, int* minor, int* revision)
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{
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if (major != NULL)
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*major = FREERDP_VERSION_MAJOR;
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if (minor != NULL)
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*minor = FREERDP_VERSION_MINOR;
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if (revision != NULL)
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*revision = FREERDP_VERSION_REVISION;
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}
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const char* freerdp_get_version_string(void)
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{
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return FREERDP_VERSION_FULL;
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}
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const char* freerdp_get_build_date(void)
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{
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static char build_date[64];
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sprintf_s(build_date, sizeof(build_date), "%s %s", __DATE__, __TIME__);
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return build_date;
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}
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const char* freerdp_get_build_revision(void)
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{
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return GIT_REVISION;
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}
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static wEventType FreeRDP_Events[] =
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{
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DEFINE_EVENT_ENTRY(WindowStateChange)
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DEFINE_EVENT_ENTRY(ResizeWindow)
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DEFINE_EVENT_ENTRY(LocalResizeWindow)
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DEFINE_EVENT_ENTRY(EmbedWindow)
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DEFINE_EVENT_ENTRY(PanningChange)
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DEFINE_EVENT_ENTRY(ZoomingChange)
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DEFINE_EVENT_ENTRY(ErrorInfo)
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DEFINE_EVENT_ENTRY(Terminate)
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DEFINE_EVENT_ENTRY(ConnectionResult)
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DEFINE_EVENT_ENTRY(ChannelConnected)
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DEFINE_EVENT_ENTRY(ChannelDisconnected)
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DEFINE_EVENT_ENTRY(MouseEvent)
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};
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/** Allocator function for a rdp context.
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* The function will allocate a rdpRdp structure using rdp_new(), then copy
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* its contents to the appropriate fields in the rdp_freerdp structure given in parameters.
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* It will also initialize the 'context' field in the rdp_freerdp structure as needed.
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* If the caller has set the ContextNew callback in the 'instance' parameter, it will be called at the end of the function.
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*
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* @param instance - Pointer to the rdp_freerdp structure that will be initialized with the new context.
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*/
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BOOL freerdp_context_new(freerdp* instance)
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{
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rdpRdp* rdp;
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rdpContext* context;
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BOOL ret = TRUE;
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instance->context = (rdpContext*) calloc(1, instance->ContextSize);
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if (!instance->context)
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return FALSE;
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context = instance->context;
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context->instance = instance;
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context->ServerMode = FALSE;
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context->settings = instance->settings;
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context->pubSub = PubSub_New(TRUE);
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if(!context->pubSub)
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goto out_error_pubsub;
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PubSub_AddEventTypes(context->pubSub, FreeRDP_Events, sizeof(FreeRDP_Events) / sizeof(wEventType));
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context->metrics = metrics_new(context);
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if (!context->metrics)
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goto out_error_metrics_new;
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rdp = rdp_new(context);
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if (!rdp)
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goto out_error_rdp_new;
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instance->input = rdp->input;
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instance->update = rdp->update;
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instance->settings = rdp->settings;
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instance->autodetect = rdp->autodetect;
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context->graphics = graphics_new(context);
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if(!context->graphics)
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goto out_error_graphics_new;
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context->rdp = rdp;
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context->input = instance->input;
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context->update = instance->update;
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context->settings = instance->settings;
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context->autodetect = instance->autodetect;
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instance->update->context = instance->context;
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instance->update->pointer->context = instance->context;
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instance->update->primary->context = instance->context;
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instance->update->secondary->context = instance->context;
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instance->update->altsec->context = instance->context;
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instance->input->context = context;
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instance->autodetect->context = context;
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if (!(context->errorDescription = calloc(1, 500)))
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{
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WLog_ERR(TAG, "calloc failed!");
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goto out_error_description;
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}
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if (!(context->channelErrorEvent = CreateEvent(NULL, TRUE, FALSE, NULL)))
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{
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WLog_ERR(TAG, "CreateEvent failed!");
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goto out_error_create_event;
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}
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update_register_client_callbacks(rdp->update);
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IFCALLRET(instance->ContextNew, ret, instance, instance->context);
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if (ret)
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return TRUE;
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out_error_create_event:
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CloseHandle(context->channelErrorEvent);
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out_error_description:
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free(context->errorDescription);
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out_error_graphics_new:
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rdp_free(rdp);
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out_error_rdp_new:
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metrics_free(context->metrics);
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out_error_metrics_new:
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PubSub_Free(context->pubSub);
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out_error_pubsub:
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free(instance->context);
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return FALSE;
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}
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/** Deallocator function for a rdp context.
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* The function will deallocate the resources from the 'instance' parameter that were allocated from a call
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* to freerdp_context_new().
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* If the ContextFree callback is set in the 'instance' parameter, it will be called before deallocation occurs.
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*
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* @param instance - Pointer to the rdp_freerdp structure that was initialized by a call to freerdp_context_new().
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* On return, the fields associated to the context are invalid.
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*/
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void freerdp_context_free(freerdp* instance)
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{
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if (!instance)
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return;
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if (!instance->context)
|
|
return;
|
|
|
|
IFCALL(instance->ContextFree, instance, instance->context);
|
|
|
|
rdp_free(instance->context->rdp);
|
|
instance->context->rdp = NULL;
|
|
|
|
graphics_free(instance->context->graphics);
|
|
instance->context->graphics = NULL;
|
|
|
|
PubSub_Free(instance->context->pubSub);
|
|
|
|
metrics_free(instance->context->metrics);
|
|
|
|
CloseHandle(instance->context->channelErrorEvent);
|
|
free(instance->context->errorDescription);
|
|
|
|
free(instance->context);
|
|
instance->context = NULL;
|
|
|
|
}
|
|
|
|
UINT32 freerdp_error_info(freerdp* instance)
|
|
{
|
|
return instance->context->rdp->errorInfo;
|
|
}
|
|
|
|
void freerdp_set_error_info(rdpRdp* rdp, UINT32 error) {
|
|
rdp->errorInfo = error;
|
|
}
|
|
|
|
UINT32 freerdp_get_last_error(rdpContext* context)
|
|
{
|
|
return context->LastError;
|
|
}
|
|
|
|
const char* freerdp_get_last_error_name(UINT32 code)
|
|
{
|
|
const char *name = NULL;
|
|
const UINT32 cls = GET_FREERDP_ERROR_CLASS(code);
|
|
const UINT32 type = GET_FREERDP_ERROR_TYPE(code);
|
|
|
|
switch(cls)
|
|
{
|
|
case FREERDP_ERROR_ERRBASE_CLASS:
|
|
name = freerdp_get_error_base_name(type);
|
|
break;
|
|
case FREERDP_ERROR_ERRINFO_CLASS:
|
|
name = freerdp_get_error_info_name(type);
|
|
break;
|
|
case FREERDP_ERROR_CONNECT_CLASS:
|
|
name = freerdp_get_error_connect_name(type);
|
|
break;
|
|
default:
|
|
name = "Unknown error class";
|
|
break;
|
|
}
|
|
|
|
return name;
|
|
}
|
|
|
|
const char* freerdp_get_last_error_string(UINT32 code)
|
|
{
|
|
const char* string = NULL;
|
|
const UINT32 cls = GET_FREERDP_ERROR_CLASS(code);
|
|
const UINT32 type = GET_FREERDP_ERROR_TYPE(code);
|
|
|
|
switch(cls)
|
|
{
|
|
case FREERDP_ERROR_ERRBASE_CLASS:
|
|
string = freerdp_get_error_base_string(type);
|
|
break;
|
|
case FREERDP_ERROR_ERRINFO_CLASS:
|
|
string = freerdp_get_error_info_string(type);
|
|
break;
|
|
case FREERDP_ERROR_CONNECT_CLASS:
|
|
string = freerdp_get_error_connect_string(type);
|
|
break;
|
|
default:
|
|
string = "Unknown error class";
|
|
break;
|
|
}
|
|
|
|
return string;
|
|
}
|
|
|
|
void freerdp_set_last_error(rdpContext* context, UINT32 lastError)
|
|
{
|
|
if (lastError)
|
|
WLog_ERR(TAG, "freerdp_set_last_error %s [0x%04X]",
|
|
freerdp_get_last_error_name(lastError), lastError);
|
|
|
|
context->LastError = lastError;
|
|
|
|
switch (lastError)
|
|
{
|
|
case FREERDP_ERROR_PRE_CONNECT_FAILED:
|
|
connectErrorCode = PREECONNECTERROR;
|
|
break;
|
|
|
|
case FREERDP_ERROR_CONNECT_UNDEFINED:
|
|
connectErrorCode = UNDEFINEDCONNECTERROR;
|
|
break;
|
|
|
|
case FREERDP_ERROR_POST_CONNECT_FAILED:
|
|
connectErrorCode = POSTCONNECTERROR;
|
|
break;
|
|
|
|
case FREERDP_ERROR_DNS_ERROR:
|
|
connectErrorCode = DNSERROR;
|
|
break;
|
|
|
|
case FREERDP_ERROR_DNS_NAME_NOT_FOUND:
|
|
connectErrorCode = DNSNAMENOTFOUND;
|
|
break;
|
|
|
|
case FREERDP_ERROR_CONNECT_FAILED:
|
|
connectErrorCode = CONNECTERROR;
|
|
break;
|
|
|
|
case FREERDP_ERROR_MCS_CONNECT_INITIAL_ERROR:
|
|
connectErrorCode = MCSCONNECTINITIALERROR;
|
|
break;
|
|
|
|
case FREERDP_ERROR_TLS_CONNECT_FAILED:
|
|
connectErrorCode = TLSCONNECTERROR;
|
|
break;
|
|
|
|
case FREERDP_ERROR_AUTHENTICATION_FAILED:
|
|
connectErrorCode = AUTHENTICATIONERROR;
|
|
break;
|
|
|
|
case FREERDP_ERROR_INSUFFICIENT_PRIVILEGES:
|
|
connectErrorCode = INSUFFICIENTPRIVILEGESERROR;
|
|
break;
|
|
|
|
case FREERDP_ERROR_CONNECT_CANCELLED:
|
|
connectErrorCode = CANCELEDBYUSER;
|
|
break;
|
|
|
|
case FREERDP_ERROR_SECURITY_NEGO_CONNECT_FAILED:
|
|
connectErrorCode = CONNECTERROR;
|
|
break;
|
|
|
|
case FREERDP_ERROR_CONNECT_TRANSPORT_FAILED:
|
|
connectErrorCode = CONNECTERROR;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/** Allocator function for the rdp_freerdp structure.
|
|
* @return an allocated structure filled with 0s. Need to be deallocated using freerdp_free()
|
|
*/
|
|
freerdp* freerdp_new()
|
|
{
|
|
freerdp* instance;
|
|
|
|
instance = (freerdp*) calloc(1, sizeof(freerdp));
|
|
|
|
if (!instance)
|
|
return NULL;
|
|
|
|
instance->ContextSize = sizeof(rdpContext);
|
|
instance->SendChannelData = freerdp_send_channel_data;
|
|
instance->ReceiveChannelData = freerdp_channels_data;
|
|
|
|
return instance;
|
|
}
|
|
|
|
/** Deallocator function for the rdp_freerdp structure.
|
|
* @param instance - pointer to the rdp_freerdp structure to deallocate.
|
|
* On return, this pointer is not valid anymore.
|
|
*/
|
|
void freerdp_free(freerdp* instance)
|
|
{
|
|
free(instance);
|
|
}
|
|
|
|
FREERDP_API ULONG freerdp_get_transport_sent(rdpContext* context, BOOL resetCount) {
|
|
ULONG written = context->rdp->transport->written;
|
|
if (resetCount)
|
|
context->rdp->transport->written = 0;
|
|
return written;
|
|
}
|
|
|
|
FREERDP_API HANDLE getChannelErrorEventHandle(rdpContext* context)
|
|
{
|
|
return context->channelErrorEvent;
|
|
}
|
|
|
|
FREERDP_API BOOL checkChannelErrorEvent(rdpContext* context)
|
|
{
|
|
if (WaitForSingleObject( context->channelErrorEvent, 0) == WAIT_OBJECT_0)
|
|
{
|
|
WLog_ERR(TAG, "%s. Error was %lu", context->errorDescription, context->channelErrorNum);
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
FREERDP_API UINT getChannelError(rdpContext* context)
|
|
{
|
|
return context->channelErrorNum;
|
|
}
|
|
FREERDP_API const char* getChannelErrorDescription(rdpContext* context)
|
|
{
|
|
return context->errorDescription;
|
|
}
|
|
FREERDP_API void setChannelError(rdpContext* context, UINT errorNum, char* description)
|
|
{
|
|
context->channelErrorNum = errorNum;
|
|
strncpy(context->errorDescription, description, 499);
|
|
SetEvent(context->channelErrorEvent);
|
|
}
|