mirror of https://github.com/FreeRDP/FreeRDP
Updated copyright header.
Added error checks and assertions.
This commit is contained in:
Armin Novak
parent
32ef77738f
commit
4b0b94d04d
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@ -3,6 +3,8 @@
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* Dynamic Virtual Channel Manager
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*
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* Copyright 2010-2011 Vic Lee
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* Copyright 2014 Thincast Technologies GmbH
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* Copyright 2014 Armin Novak <armin.novak@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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@ -22,6 +24,7 @@
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#endif
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#include <assert.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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@ -45,6 +48,12 @@ struct cb_value
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static int dvcman_get_configuration(IWTSListener *pListener, void **ppPropertyBag)
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{
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if (!ppPropertyBag)
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{
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DEBUG_WARN("ppPropertyBag=%p", ppPropertyBag);
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return 0;
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}
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*ppPropertyBag = NULL;
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return 1;
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}
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@ -55,19 +64,29 @@ static int dvcman_create_listener(IWTSVirtualChannelManager *pChannelMgr,
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{
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DVCMAN *dvcman = (DVCMAN *) pChannelMgr;
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DVCMAN_LISTENER *listener;
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if(dvcman->num_listeners < MAX_PLUGINS)
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assert(dvcman);
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if (dvcman->num_listeners < MAX_PLUGINS)
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{
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DEBUG_DVC("%d.%s.", dvcman->num_listeners, pszChannelName);
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listener = (DVCMAN_LISTENER *) malloc(sizeof(DVCMAN_LISTENER));
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ZeroMemory(listener, sizeof(DVCMAN_LISTENER));
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listener = (DVCMAN_LISTENER *) calloc(1, sizeof(DVCMAN_LISTENER));
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if (!listener)
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{
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DEBUG_WARN("calloc failed %s (%d)!", strerror(errno), errno);
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return 2;
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}
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listener->iface.GetConfiguration = dvcman_get_configuration;
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listener->iface.pInterface = NULL;
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listener->dvcman = dvcman;
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listener->channel_name = _strdup(pszChannelName);
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listener->flags = ulFlags;
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listener->listener_callback = pListenerCallback;
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if(ppListener)
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if (ppListener)
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*ppListener = (IWTSListener *) listener;
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dvcman->listeners[dvcman->num_listeners++] = (IWTSListener *) listener;
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return 0;
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}
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@ -82,8 +101,10 @@ static int dvcman_push_event(IWTSVirtualChannelManager *pChannelMgr, wMessage *p
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{
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int status;
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DVCMAN *dvcman = (DVCMAN *) pChannelMgr;
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assert(dvcman);
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status = drdynvc_push_event(dvcman->drdynvc, pEvent);
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if(status == 0)
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if (status == 0)
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{
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DEBUG_DVC("event_type %d pushed.", GetMessageType(pEvent->id));
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}
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@ -91,13 +112,17 @@ static int dvcman_push_event(IWTSVirtualChannelManager *pChannelMgr, wMessage *p
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{
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DEBUG_WARN("event_type %d push failed.", GetMessageType(pEvent->id));
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}
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return status;
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}
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static int dvcman_register_plugin(IDRDYNVC_ENTRY_POINTS *pEntryPoints, const char *name, IWTSPlugin *pPlugin)
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{
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DVCMAN *dvcman = ((DVCMAN_ENTRY_POINTS *) pEntryPoints)->dvcman;
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if(dvcman->num_plugins < MAX_PLUGINS)
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assert(pEntryPoints);
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assert(dvcman);
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if (dvcman->num_plugins < MAX_PLUGINS)
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{
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DEBUG_DVC("num_plugins %d", dvcman->num_plugins);
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dvcman->plugin_names[dvcman->num_plugins] = name;
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@ -115,24 +140,30 @@ IWTSPlugin *dvcman_get_plugin(IDRDYNVC_ENTRY_POINTS *pEntryPoints, const char *n
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{
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int i;
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DVCMAN *dvcman = ((DVCMAN_ENTRY_POINTS *) pEntryPoints)->dvcman;
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for(i = 0; i < dvcman->num_plugins; i++)
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assert(pEntryPoints);
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assert(dvcman);
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for (i = 0; i < dvcman->num_plugins; i++)
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{
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if(dvcman->plugin_names[i] == name ||
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if (dvcman->plugin_names[i] == name ||
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strcmp(dvcman->plugin_names[i], name) == 0)
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{
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return dvcman->plugins[i];
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}
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}
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return NULL;
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}
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ADDIN_ARGV *dvcman_get_plugin_data(IDRDYNVC_ENTRY_POINTS *pEntryPoints)
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{
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assert(pEntryPoints);
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return ((DVCMAN_ENTRY_POINTS *) pEntryPoints)->args;
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}
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UINT32 dvcman_get_channel_id(IWTSVirtualChannel *channel)
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{
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assert(channel);
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return ((DVCMAN_CHANNEL *) channel)->channel_id;
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}
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@ -142,18 +173,22 @@ IWTSVirtualChannel *dvcman_find_channel_by_id(IWTSVirtualChannelManager *pChanne
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BOOL found = FALSE;
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DVCMAN_CHANNEL *channel;
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DVCMAN *dvcman = (DVCMAN *) pChannelMgr;
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assert(dvcman);
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ArrayList_Lock(dvcman->channels);
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index = 0;
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channel = (DVCMAN_CHANNEL *) ArrayList_GetItem(dvcman->channels, index++);
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while(channel)
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while (channel)
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{
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if(channel->channel_id == ChannelId)
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if (channel->channel_id == ChannelId)
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{
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found = TRUE;
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break;
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}
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channel = (DVCMAN_CHANNEL *) ArrayList_GetItem(dvcman->channels, index++);
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}
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ArrayList_Unlock(dvcman->channels);
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return (found) ? ((IWTSVirtualChannel *) channel) : NULL;
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}
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@ -165,24 +200,35 @@ void *dvcman_get_channel_interface_by_name(IWTSVirtualChannelManager *pChannelMg
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void *pInterface = NULL;
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DVCMAN_LISTENER *listener;
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DVCMAN *dvcman = (DVCMAN *) pChannelMgr;
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for(i = 0; i < dvcman->num_listeners; i++)
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assert(dvcman);
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for (i = 0; i < dvcman->num_listeners; i++)
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{
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listener = (DVCMAN_LISTENER *) dvcman->listeners[i];
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if(strcmp(listener->channel_name, ChannelName) == 0)
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assert(listener);
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if (strcmp(listener->channel_name, ChannelName) == 0)
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{
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pInterface = listener->iface.pInterface;
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found = TRUE;
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break;
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}
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}
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return (found) ? pInterface : NULL;
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}
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IWTSVirtualChannelManager *dvcman_new(drdynvcPlugin *plugin)
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{
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DVCMAN *dvcman;
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dvcman = (DVCMAN *) malloc(sizeof(DVCMAN));
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ZeroMemory(dvcman, sizeof(DVCMAN));
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dvcman = (DVCMAN *) calloc(1,sizeof(DVCMAN));
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if (!dvcman)
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{
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DEBUG_WARN("calloc failed %s (%d)!", strerror(errno), errno);
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return NULL;
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}
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dvcman->iface.CreateListener = dvcman_create_listener;
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dvcman->iface.PushEvent = dvcman_push_event;
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dvcman->iface.FindChannelById = dvcman_find_channel_by_id;
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@ -196,10 +242,12 @@ int dvcman_load_addin(IWTSVirtualChannelManager *pChannelMgr, ADDIN_ARGV *args)
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{
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DVCMAN_ENTRY_POINTS entryPoints;
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PDVC_PLUGIN_ENTRY pDVCPluginEntry = NULL;
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assert(args);
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fprintf(stderr, "Loading Dynamic Virtual Channel %s\n", args->argv[0]);
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pDVCPluginEntry = (PDVC_PLUGIN_ENTRY) freerdp_load_channel_addin_entry(args->argv[0],
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NULL, NULL, FREERDP_ADDIN_CHANNEL_DYNAMIC);
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if(pDVCPluginEntry)
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if (pDVCPluginEntry)
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{
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entryPoints.iface.RegisterPlugin = dvcman_register_plugin;
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entryPoints.iface.GetPlugin = dvcman_get_plugin;
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@ -208,16 +256,20 @@ int dvcman_load_addin(IWTSVirtualChannelManager *pChannelMgr, ADDIN_ARGV *args)
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entryPoints.args = args;
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pDVCPluginEntry((IDRDYNVC_ENTRY_POINTS *) &entryPoints);
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}
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return 0;
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}
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static void dvcman_channel_free(DVCMAN_CHANNEL *channel)
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{
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assert(channel);
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if(channel->channel_callback)
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if (channel->channel_callback)
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channel->channel_callback->OnClose(channel->channel_callback);
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if(channel->channel_name)
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if (channel->channel_name)
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free(channel->channel_name);
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free(channel);
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}
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@ -229,27 +281,34 @@ void dvcman_free(IWTSVirtualChannelManager *pChannelMgr)
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DVCMAN_LISTENER *listener;
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DVCMAN_CHANNEL *channel;
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DVCMAN *dvcman = (DVCMAN *) pChannelMgr;
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assert(dvcman);
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ArrayList_Lock(dvcman->channels);
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count = ArrayList_Count(dvcman->channels);
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for(i = 0; i < count; i++)
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for (i = 0; i < count; i++)
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{
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channel = (DVCMAN_CHANNEL *) ArrayList_GetItem(dvcman->channels, i);
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dvcman_channel_free(channel);
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}
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ArrayList_Unlock(dvcman->channels);
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ArrayList_Free(dvcman->channels);
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for(i = 0; i < dvcman->num_listeners; i++)
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for (i = 0; i < dvcman->num_listeners; i++)
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{
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listener = (DVCMAN_LISTENER *) dvcman->listeners[i];
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free(listener->channel_name);
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free(listener);
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}
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for(i = 0; i < dvcman->num_plugins; i++)
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for (i = 0; i < dvcman->num_plugins; i++)
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{
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pPlugin = dvcman->plugins[i];
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if(pPlugin->Terminated)
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if (pPlugin->Terminated)
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pPlugin->Terminated(pPlugin);
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}
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free(dvcman);
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}
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@ -258,12 +317,16 @@ int dvcman_init(IWTSVirtualChannelManager *pChannelMgr)
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int i;
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IWTSPlugin *pPlugin;
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DVCMAN *dvcman = (DVCMAN *) pChannelMgr;
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for(i = 0; i < dvcman->num_plugins; i++)
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assert(dvcman);
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for (i = 0; i < dvcman->num_plugins; i++)
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{
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pPlugin = dvcman->plugins[i];
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if(pPlugin->Initialize)
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if (pPlugin->Initialize)
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pPlugin->Initialize(pPlugin, pChannelMgr);
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}
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return 0;
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}
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@ -271,6 +334,7 @@ static int dvcman_write_channel(IWTSVirtualChannel *pChannel, UINT32 cbSize, BYT
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{
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int status;
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DVCMAN_CHANNEL *channel = (DVCMAN_CHANNEL *) pChannel;
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assert(channel);
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WaitForSingleObject(channel->dvc_chan_mutex, INFINITE);
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status = drdynvc_write_data(channel->dvcman->drdynvc, channel->channel_id, pBuffer, cbSize);
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ReleaseMutex(channel->dvc_chan_mutex);
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@ -281,6 +345,8 @@ static int dvcman_close_channel_iface(IWTSVirtualChannel *pChannel)
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{
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DVCMAN_CHANNEL *channel = (DVCMAN_CHANNEL *) pChannel;
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DVCMAN *dvcman = channel->dvcman;
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assert(channel);
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assert(dvcman);
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DEBUG_DVC("id=%d", channel->channel_id);
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ArrayList_Remove(dvcman->channels, channel);
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dvcman_channel_free(channel);
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@ -296,22 +362,35 @@ int dvcman_create_channel(IWTSVirtualChannelManager *pChannelMgr, UINT32 Channel
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DrdynvcClientContext *context;
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IWTSVirtualChannelCallback *pCallback;
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DVCMAN *dvcman = (DVCMAN *) pChannelMgr;
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channel = (DVCMAN_CHANNEL *) malloc(sizeof(DVCMAN_CHANNEL));
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channel = (DVCMAN_CHANNEL *) calloc(1, sizeof(DVCMAN_CHANNEL));
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if (!channel)
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{
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DEBUG_WARN("calloc failed %s (%d)!", strerror(errno), errno);
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return -1;
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}
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ZeroMemory(channel, sizeof(DVCMAN_CHANNEL));
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channel->dvcman = dvcman;
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channel->channel_id = ChannelId;
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channel->channel_name = _strdup(ChannelName);
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for(i = 0; i < dvcman->num_listeners; i++)
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for (i = 0; i < dvcman->num_listeners; i++)
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{
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listener = (DVCMAN_LISTENER *) dvcman->listeners[i];
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if(strcmp(listener->channel_name, ChannelName) == 0)
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assert(listener);
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if (strcmp(listener->channel_name, ChannelName) == 0)
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{
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channel->iface.Write = dvcman_write_channel;
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channel->iface.Close = dvcman_close_channel_iface;
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channel->dvc_chan_mutex = CreateMutex(NULL, FALSE, NULL);
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bAccept = 1;
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pCallback = NULL;
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if(listener->listener_callback->OnNewChannelConnection(listener->listener_callback,
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assert(listener->listener_callback);
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assert(listener->listener_callback->OnNewChannelConnection);
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if (listener->listener_callback->OnNewChannelConnection(listener->listener_callback,
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(IWTSVirtualChannel *) channel, NULL, &bAccept, &pCallback) == 0 && bAccept == 1)
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{
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DEBUG_DVC("listener %s created new channel %d",
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@ -319,6 +398,7 @@ int dvcman_create_channel(IWTSVirtualChannelManager *pChannelMgr, UINT32 Channel
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channel->status = 0;
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channel->channel_callback = pCallback;
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channel->pInterface = listener->iface.pInterface;
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assert(dvcman->drdynvc);
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ArrayList_Add(dvcman->channels, channel);
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context = dvcman->drdynvc->context;
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IFCALL(context->OnChannelConnected, context, ChannelName, listener->iface.pInterface);
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@ -332,6 +412,7 @@ int dvcman_create_channel(IWTSVirtualChannelManager *pChannelMgr, UINT32 Channel
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}
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}
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}
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free(channel);
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return 1;
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}
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@ -342,25 +423,31 @@ int dvcman_close_channel(IWTSVirtualChannelManager *pChannelMgr, UINT32 ChannelI
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IWTSVirtualChannel *ichannel;
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DrdynvcClientContext *context;
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DVCMAN *dvcman = (DVCMAN *) pChannelMgr;
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assert(dvcman);
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channel = (DVCMAN_CHANNEL *) dvcman_find_channel_by_id(pChannelMgr, ChannelId);
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if(!channel)
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if (!channel)
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{
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DEBUG_WARN("ChannelId %d not found!", ChannelId);
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return 1;
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}
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if(channel->dvc_data)
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if (channel->dvc_data)
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{
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Stream_Free(channel->dvc_data, TRUE);
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channel->dvc_data = NULL;
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}
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if(channel->status == 0)
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if (channel->status == 0)
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{
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assert(dvcman->drdynvc);
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context = dvcman->drdynvc->context;
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IFCALL(context->OnChannelDisconnected, context, channel->channel_name, channel->pInterface);
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DEBUG_DVC("dvcman_close_channel: channel %d closed", ChannelId);
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ichannel = (IWTSVirtualChannel *) channel;
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ichannel->Close(ichannel);
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}
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return 0;
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}
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@ -368,13 +455,16 @@ int dvcman_receive_channel_data_first(IWTSVirtualChannelManager *pChannelMgr, UI
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{
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DVCMAN_CHANNEL *channel;
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channel = (DVCMAN_CHANNEL *) dvcman_find_channel_by_id(pChannelMgr, ChannelId);
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if(!channel)
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if (!channel)
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{
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DEBUG_WARN("ChannelId %d not found!", ChannelId);
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return 1;
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}
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if(channel->dvc_data)
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if (channel->dvc_data)
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Stream_Free(channel->dvc_data, TRUE);
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channel->dvc_data = Stream_New(NULL, length);
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return 0;
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}
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@ -384,23 +474,27 @@ int dvcman_receive_channel_data(IWTSVirtualChannelManager *pChannelMgr, UINT32 C
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int error = 0;
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DVCMAN_CHANNEL *channel;
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channel = (DVCMAN_CHANNEL *) dvcman_find_channel_by_id(pChannelMgr, ChannelId);
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if(!channel)
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if (!channel)
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{
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DEBUG_WARN("ChannelId %d not found!", ChannelId);
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return 1;
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}
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if(channel->dvc_data)
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if (channel->dvc_data)
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{
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/* Fragmented data */
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if(Stream_GetPosition(channel->dvc_data) + data_size > (UINT32) Stream_Capacity(channel->dvc_data))
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if (Stream_GetPosition(channel->dvc_data) + data_size > (UINT32) Stream_Capacity(channel->dvc_data))
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{
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DEBUG_WARN("data exceeding declared length!");
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Stream_Free(channel->dvc_data, TRUE);
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channel->dvc_data = NULL;
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return 1;
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}
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Stream_Write(channel->dvc_data, data, data_size);
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if(((size_t) Stream_GetPosition(channel->dvc_data)) >= Stream_Capacity(channel->dvc_data))
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|
||||
if (((size_t) Stream_GetPosition(channel->dvc_data)) >= Stream_Capacity(channel->dvc_data))
|
||||
{
|
||||
error = channel->channel_callback->OnDataReceived(channel->channel_callback,
|
||||
Stream_Capacity(channel->dvc_data), Stream_Buffer(channel->dvc_data));
|
||||
|
|
@ -410,8 +504,11 @@ int dvcman_receive_channel_data(IWTSVirtualChannelManager *pChannelMgr, UINT32 C
|
|||
}
|
||||
else
|
||||
{
|
||||
assert(channel->channel_callback);
|
||||
assert(channel->channel_callback->OnDataReceived);
|
||||
error = channel->channel_callback->OnDataReceived(channel->channel_callback, data_size, data);
|
||||
}
|
||||
|
||||
return error;
|
||||
}
|
||||
|
||||
|
|
@ -419,13 +516,16 @@ static void dump_callbacks(void)
|
|||
{
|
||||
wListDictionaryItem *cur;
|
||||
DEBUG_DVC("Dumping all currently registered callbacks");
|
||||
if(!cb_dict)
|
||||
|
||||
if (!cb_dict)
|
||||
{
|
||||
DEBUG_DVC("cb_dict=NULL");
|
||||
return;
|
||||
}
|
||||
|
||||
cur = cb_dict->head;
|
||||
while(cur)
|
||||
|
||||
while (cur)
|
||||
{
|
||||
DEBUG_DVC("cb_dict %s:%p", cur->key, cur->value);
|
||||
cur = cur->next;
|
||||
|
|
@ -435,21 +535,26 @@ static void dump_callbacks(void)
|
|||
void *get_callback_by_name(const char *name, void **context)
|
||||
{
|
||||
struct cb_value *rc;
|
||||
if(!cb_dict)
|
||||
|
||||
if (!cb_dict)
|
||||
{
|
||||
DEBUG_WARN("'%s' not found, function list does not exist.",
|
||||
name);
|
||||
return NULL;
|
||||
}
|
||||
if(!ListDictionary_Contains(cb_dict, (void *)name))
|
||||
|
||||
if (!ListDictionary_Contains(cb_dict, (void *)name))
|
||||
{
|
||||
DEBUG_WARN("'%s' not found", name);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
rc = ListDictionary_GetItemValue(cb_dict, (void *)name);
|
||||
DEBUG_DVC("'%s'=%p found", name, rc);
|
||||
assert(context);
|
||||
*context = rc->context;
|
||||
|
||||
if (context)
|
||||
*context = rc->context;
|
||||
|
||||
return rc->fkt;
|
||||
}
|
||||
|
||||
|
|
@ -461,12 +566,21 @@ static BOOL callback_key_cmp(void *a, void *b)
|
|||
void add_callback_by_name(const char *name, void *fkt, void *context)
|
||||
{
|
||||
struct cb_value *value = calloc(1, sizeof(struct cb_value));
|
||||
if(!cb_dict)
|
||||
|
||||
if (!value)
|
||||
{
|
||||
DEBUG_WARN("calloc failed %s (%d)!", strerror(errno), errno);
|
||||
assert(FALSE);
|
||||
return;
|
||||
}
|
||||
|
||||
if (!cb_dict)
|
||||
{
|
||||
DEBUG_DVC("Function list is empty, allocating new.");
|
||||
cb_dict = ListDictionary_New(TRUE);
|
||||
ListDictionary_KeyObject(cb_dict)->fnObjectEquals = callback_key_cmp;
|
||||
}
|
||||
|
||||
value->fkt = fkt;
|
||||
value->context = context;
|
||||
DEBUG_DVC("Adding '%s'=%p to function list.", name, fkt);
|
||||
|
|
@ -476,25 +590,29 @@ void add_callback_by_name(const char *name, void *fkt, void *context)
|
|||
|
||||
void remove_callback_by_name(const char *name, void *context)
|
||||
{
|
||||
if(!cb_dict)
|
||||
if (!cb_dict)
|
||||
{
|
||||
DEBUG_WARN("trying to remove '%s', but function list does not exist.",
|
||||
name);
|
||||
return;
|
||||
}
|
||||
if(!ListDictionary_Contains(cb_dict, (void *)name))
|
||||
|
||||
if (!ListDictionary_Contains(cb_dict, (void *)name))
|
||||
{
|
||||
DEBUG_WARN("trying to remove '%s', which is not in function list.",
|
||||
name);
|
||||
return;
|
||||
}
|
||||
|
||||
DEBUG_DVC("Removing '%s' from function list.", name);
|
||||
ListDictionary_Remove(cb_dict, (void *)name);
|
||||
if(ListDictionary_Count(cb_dict) < 1)
|
||||
|
||||
if (ListDictionary_Count(cb_dict) < 1)
|
||||
{
|
||||
DEBUG_DVC("Function list is empty, freeing resources.");
|
||||
ListDictionary_Free(cb_dict);
|
||||
cb_dict = NULL;
|
||||
}
|
||||
|
||||
dump_callbacks();
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue