34b700dd0f
Skipping channels already loaded in freerdp_channels_client_load This prevents channels already loaded in a context to be added a second time to the channel list.
736 lines
18 KiB
C
736 lines
18 KiB
C
/**
|
|
* FreeRDP: A Remote Desktop Protocol Implementation
|
|
* Client Channels
|
|
*
|
|
* Copyright 2014 Marc-Andre Moreau <marcandre.moreau@gmail.com>
|
|
*
|
|
* 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 <freerdp/log.h>
|
|
|
|
#include "rdp.h"
|
|
|
|
#include "client.h"
|
|
|
|
#define TAG FREERDP_TAG("core.client")
|
|
|
|
static void* g_pInterface = NULL;
|
|
static CHANNEL_INIT_DATA g_ChannelInitData;
|
|
|
|
static wHashTable* g_OpenHandles = NULL;
|
|
|
|
/* To generate unique sequence for all open handles */
|
|
int g_open_handle_sequence = 1;
|
|
|
|
/* For locking the global resources */
|
|
static CRITICAL_SECTION g_channels_lock;
|
|
|
|
CHANNEL_OPEN_DATA* freerdp_channels_find_channel_open_data_by_name(rdpChannels* channels, const char* name)
|
|
{
|
|
int index;
|
|
CHANNEL_OPEN_DATA* pChannelOpenData;
|
|
|
|
for (index = 0; index < channels->openDataCount; index++)
|
|
{
|
|
pChannelOpenData = &channels->openDataList[index];
|
|
|
|
if (strcmp(name, pChannelOpenData->name) == 0)
|
|
return pChannelOpenData;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/* returns rdpChannel for the channel name passed in */
|
|
rdpMcsChannel* freerdp_channels_find_channel_by_name(rdpRdp* rdp, const char* name)
|
|
{
|
|
UINT32 index;
|
|
rdpMcsChannel* channel;
|
|
rdpMcs* mcs = rdp->mcs;
|
|
|
|
for (index = 0; index < mcs->channelCount; index++)
|
|
{
|
|
channel = &mcs->channels[index];
|
|
|
|
if (strcmp(name, channel->Name) == 0)
|
|
{
|
|
return channel;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
rdpChannels* freerdp_channels_new(void)
|
|
{
|
|
rdpChannels* channels;
|
|
|
|
channels = (rdpChannels*) calloc(1, sizeof(rdpChannels));
|
|
|
|
if (!channels)
|
|
return NULL;
|
|
|
|
channels->queue = MessageQueue_New(NULL);
|
|
|
|
if (!g_OpenHandles)
|
|
{
|
|
g_OpenHandles = HashTable_New(TRUE);
|
|
InitializeCriticalSectionAndSpinCount(&g_channels_lock, 4000);
|
|
}
|
|
|
|
return channels;
|
|
}
|
|
|
|
void freerdp_channels_free(rdpChannels* channels)
|
|
{
|
|
int index;
|
|
CHANNEL_OPEN_DATA* pChannelOpenData;
|
|
|
|
if (channels->queue)
|
|
{
|
|
MessageQueue_Free(channels->queue);
|
|
channels->queue = NULL;
|
|
}
|
|
|
|
for (index = 0; index < channels->clientDataCount; index++)
|
|
{
|
|
pChannelOpenData = &channels->openDataList[index];
|
|
|
|
if (pChannelOpenData->pInterface)
|
|
{
|
|
free(pChannelOpenData->pInterface);
|
|
pChannelOpenData->pInterface = NULL;
|
|
}
|
|
}
|
|
|
|
if (g_OpenHandles)
|
|
{
|
|
HashTable_Free(g_OpenHandles);
|
|
DeleteCriticalSection(&g_channels_lock);
|
|
|
|
g_OpenHandles = NULL;
|
|
}
|
|
|
|
free(channels);
|
|
}
|
|
|
|
int freerdp_drdynvc_on_channel_connected(DrdynvcClientContext* context, const char* name, void* pInterface)
|
|
{
|
|
int status = 0;
|
|
ChannelConnectedEventArgs e;
|
|
rdpChannels* channels = (rdpChannels*) context->custom;
|
|
freerdp* instance = channels->instance;
|
|
|
|
EventArgsInit(&e, "freerdp");
|
|
e.name = name;
|
|
e.pInterface = pInterface;
|
|
PubSub_OnChannelConnected(instance->context->pubSub, instance->context, &e);
|
|
|
|
return status;
|
|
}
|
|
|
|
int freerdp_drdynvc_on_channel_disconnected(DrdynvcClientContext* context, const char* name, void* pInterface)
|
|
{
|
|
int status = 0;
|
|
ChannelDisconnectedEventArgs e;
|
|
rdpChannels* channels = (rdpChannels*) context->custom;
|
|
freerdp* instance = channels->instance;
|
|
|
|
EventArgsInit(&e, "freerdp");
|
|
e.name = name;
|
|
e.pInterface = pInterface;
|
|
PubSub_OnChannelDisconnected(instance->context->pubSub, instance->context, &e);
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* go through and inform all the libraries that we are initialized
|
|
* called only from main thread
|
|
*/
|
|
int freerdp_channels_pre_connect(rdpChannels* channels, freerdp* instance)
|
|
{
|
|
int index;
|
|
CHANNEL_CLIENT_DATA* pChannelClientData;
|
|
|
|
channels->instance = instance;
|
|
|
|
for (index = 0; index < channels->clientDataCount; index++)
|
|
{
|
|
pChannelClientData = &channels->clientDataList[index];
|
|
|
|
if (pChannelClientData->pChannelInitEventProc)
|
|
pChannelClientData->pChannelInitEventProc(pChannelClientData->pInitHandle, CHANNEL_EVENT_INITIALIZED, 0, 0);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* go through and inform all the libraries that we are connected
|
|
* this will tell the libraries that its ok to call MyVirtualChannelOpen
|
|
* called only from main thread
|
|
*/
|
|
int freerdp_channels_post_connect(rdpChannels* channels, freerdp* instance)
|
|
{
|
|
int index;
|
|
char* name;
|
|
char* hostname;
|
|
int hostnameLength;
|
|
CHANNEL_CLIENT_DATA* pChannelClientData;
|
|
|
|
channels->is_connected = 1;
|
|
hostname = instance->settings->ServerHostname;
|
|
hostnameLength = (int) strlen(hostname);
|
|
|
|
for (index = 0; index < channels->clientDataCount; index++)
|
|
{
|
|
pChannelClientData = &channels->clientDataList[index];
|
|
|
|
if (pChannelClientData->pChannelInitEventProc)
|
|
{
|
|
ChannelConnectedEventArgs e;
|
|
CHANNEL_OPEN_DATA* pChannelOpenData;
|
|
|
|
pChannelOpenData = &channels->openDataList[index];
|
|
|
|
pChannelClientData->pChannelInitEventProc(pChannelClientData->pInitHandle, CHANNEL_EVENT_CONNECTED, hostname, hostnameLength);
|
|
|
|
name = (char*) malloc(9);
|
|
CopyMemory(name, pChannelOpenData->name, 8);
|
|
name[8] = '\0';
|
|
|
|
EventArgsInit(&e, "freerdp");
|
|
e.name = name;
|
|
e.pInterface = pChannelOpenData->pInterface;
|
|
PubSub_OnChannelConnected(instance->context->pubSub, instance->context, &e);
|
|
|
|
free(name);
|
|
}
|
|
}
|
|
|
|
channels->drdynvc = (DrdynvcClientContext*) freerdp_channels_get_static_channel_interface(channels, "drdynvc");
|
|
|
|
if (channels->drdynvc)
|
|
{
|
|
channels->drdynvc->custom = (void*) channels;
|
|
channels->drdynvc->OnChannelConnected = freerdp_drdynvc_on_channel_connected;
|
|
channels->drdynvc->OnChannelDisconnected = freerdp_drdynvc_on_channel_disconnected;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int freerdp_channels_data(freerdp* instance, UINT16 channelId, BYTE* data, int dataSize, int flags, int totalSize)
|
|
{
|
|
UINT32 index;
|
|
rdpMcs* mcs;
|
|
rdpChannels* channels;
|
|
rdpMcsChannel* channel = NULL;
|
|
CHANNEL_OPEN_DATA* pChannelOpenData;
|
|
|
|
mcs = instance->context->rdp->mcs;
|
|
channels = instance->context->channels;
|
|
|
|
if (!channels || !mcs)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
for (index = 0; index < mcs->channelCount; index++)
|
|
{
|
|
if (mcs->channels[index].ChannelId == channelId)
|
|
{
|
|
channel = &mcs->channels[index];
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!channel)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
pChannelOpenData = freerdp_channels_find_channel_open_data_by_name(channels, channel->Name);
|
|
|
|
if (!pChannelOpenData)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
if (pChannelOpenData->pChannelOpenEventProc)
|
|
{
|
|
pChannelOpenData->pChannelOpenEventProc(pChannelOpenData->OpenHandle,
|
|
CHANNEL_EVENT_DATA_RECEIVED, data, dataSize, totalSize, flags);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* called only from main thread
|
|
*/
|
|
static int freerdp_channels_process_sync(rdpChannels* channels, freerdp* instance)
|
|
{
|
|
int status = TRUE;
|
|
wMessage message;
|
|
rdpMcsChannel* channel;
|
|
CHANNEL_OPEN_EVENT* item;
|
|
CHANNEL_OPEN_DATA* pChannelOpenData;
|
|
|
|
while (MessageQueue_Peek(channels->queue, &message, TRUE))
|
|
{
|
|
if (message.id == WMQ_QUIT)
|
|
{
|
|
status = FALSE;
|
|
break;
|
|
}
|
|
|
|
if (message.id == 0)
|
|
{
|
|
item = (CHANNEL_OPEN_EVENT*) message.wParam;
|
|
|
|
if (!item)
|
|
break;
|
|
|
|
pChannelOpenData = item->pChannelOpenData;
|
|
|
|
channel = freerdp_channels_find_channel_by_name(instance->context->rdp, pChannelOpenData->name);
|
|
|
|
if (channel)
|
|
instance->SendChannelData(instance, channel->ChannelId, item->Data, item->DataLength);
|
|
|
|
if (pChannelOpenData->pChannelOpenEventProc)
|
|
{
|
|
pChannelOpenData->pChannelOpenEventProc(pChannelOpenData->OpenHandle,
|
|
CHANNEL_EVENT_WRITE_COMPLETE, item->UserData, item->DataLength, item->DataLength, 0);
|
|
}
|
|
|
|
free(item);
|
|
}
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* called only from main thread
|
|
*/
|
|
BOOL freerdp_channels_get_fds(rdpChannels* channels, freerdp* instance, void** read_fds,
|
|
int* read_count, void** write_fds, int* write_count)
|
|
{
|
|
void* pfd;
|
|
|
|
pfd = GetEventWaitObject(MessageQueue_Event(channels->queue));
|
|
|
|
if (pfd)
|
|
{
|
|
read_fds[*read_count] = pfd;
|
|
(*read_count)++;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
void* freerdp_channels_get_static_channel_interface(rdpChannels* channels, const char* name)
|
|
{
|
|
void* pInterface = NULL;
|
|
CHANNEL_OPEN_DATA* pChannelOpenData;
|
|
|
|
pChannelOpenData = freerdp_channels_find_channel_open_data_by_name(channels, name);
|
|
|
|
if (pChannelOpenData)
|
|
pInterface = pChannelOpenData->pInterface;
|
|
|
|
return pInterface;
|
|
}
|
|
|
|
HANDLE freerdp_channels_get_event_handle(freerdp* instance)
|
|
{
|
|
HANDLE event = NULL;
|
|
rdpChannels* channels;
|
|
|
|
channels = instance->context->channels;
|
|
event = MessageQueue_Event(channels->queue);
|
|
|
|
return event;
|
|
}
|
|
|
|
int freerdp_channels_process_pending_messages(freerdp* instance)
|
|
{
|
|
rdpChannels* channels;
|
|
|
|
channels = instance->context->channels;
|
|
|
|
if (WaitForSingleObject(MessageQueue_Event(channels->queue), 0) == WAIT_OBJECT_0)
|
|
{
|
|
return freerdp_channels_process_sync(channels, instance);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* called only from main thread
|
|
*/
|
|
BOOL freerdp_channels_check_fds(rdpChannels* channels, freerdp* instance)
|
|
{
|
|
if (WaitForSingleObject(MessageQueue_Event(channels->queue), 0) == WAIT_OBJECT_0)
|
|
{
|
|
freerdp_channels_process_sync(channels, instance);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
int freerdp_channels_disconnect(rdpChannels* channels, freerdp* instance)
|
|
{
|
|
int index;
|
|
char* name;
|
|
CHANNEL_OPEN_DATA* pChannelOpenData;
|
|
CHANNEL_CLIENT_DATA* pChannelClientData;
|
|
|
|
channels->is_connected = 0;
|
|
freerdp_channels_check_fds(channels, instance);
|
|
|
|
/* tell all libraries we are shutting down */
|
|
for (index = 0; index < channels->clientDataCount; index++)
|
|
{
|
|
ChannelDisconnectedEventArgs e;
|
|
|
|
pChannelClientData = &channels->clientDataList[index];
|
|
|
|
if (pChannelClientData->pChannelInitEventProc)
|
|
pChannelClientData->pChannelInitEventProc(pChannelClientData->pInitHandle, CHANNEL_EVENT_DISCONNECTED, 0, 0);
|
|
|
|
pChannelOpenData = &channels->openDataList[index];
|
|
|
|
name = (char*) malloc(9);
|
|
CopyMemory(name, pChannelOpenData->name, 8);
|
|
name[8] = '\0';
|
|
|
|
EventArgsInit(&e, "freerdp");
|
|
e.name = name;
|
|
e.pInterface = pChannelOpenData->pInterface;
|
|
PubSub_OnChannelDisconnected(instance->context->pubSub, instance->context, &e);
|
|
|
|
free(name);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void freerdp_channels_close(rdpChannels* channels, freerdp* instance)
|
|
{
|
|
int index;
|
|
CHANNEL_CLIENT_DATA* pChannelClientData;
|
|
|
|
freerdp_channels_check_fds(channels, instance);
|
|
|
|
/* tell all libraries we are shutting down */
|
|
for (index = 0; index < channels->clientDataCount; index++)
|
|
{
|
|
pChannelClientData = &channels->clientDataList[index];
|
|
|
|
if (pChannelClientData->pChannelInitEventProc)
|
|
pChannelClientData->pChannelInitEventProc(pChannelClientData->pInitHandle, CHANNEL_EVENT_TERMINATED, 0, 0);
|
|
}
|
|
|
|
MessageQueue_PostQuit(channels->queue, 0);
|
|
}
|
|
|
|
UINT VCAPITYPE FreeRDP_VirtualChannelInit(LPVOID* ppInitHandle, PCHANNEL_DEF pChannel,
|
|
INT channelCount, ULONG versionRequested, PCHANNEL_INIT_EVENT_FN pChannelInitEventProc)
|
|
{
|
|
int index;
|
|
void* pInterface;
|
|
DWORD OpenHandle;
|
|
CHANNEL_DEF* channel;
|
|
rdpChannels* channels;
|
|
rdpSettings* settings;
|
|
PCHANNEL_DEF pChannelDef;
|
|
CHANNEL_INIT_DATA* pChannelInitData;
|
|
CHANNEL_OPEN_DATA* pChannelOpenData;
|
|
CHANNEL_CLIENT_DATA* pChannelClientData;
|
|
|
|
if (!ppInitHandle)
|
|
return CHANNEL_RC_BAD_INIT_HANDLE;
|
|
|
|
channels = g_ChannelInitData.channels;
|
|
pInterface = g_pInterface;
|
|
|
|
pChannelInitData = &(channels->initDataList[channels->initDataCount]);
|
|
*ppInitHandle = pChannelInitData;
|
|
channels->initDataCount++;
|
|
|
|
pChannelInitData->channels = channels;
|
|
pChannelInitData->pInterface = pInterface;
|
|
|
|
if (!channels->can_call_init)
|
|
return CHANNEL_RC_NOT_IN_VIRTUALCHANNELENTRY;
|
|
|
|
if (channels->openDataCount + channelCount >= CHANNEL_MAX_COUNT)
|
|
return CHANNEL_RC_TOO_MANY_CHANNELS;
|
|
|
|
if (!pChannel)
|
|
return CHANNEL_RC_BAD_CHANNEL;
|
|
|
|
if (channels->is_connected)
|
|
return CHANNEL_RC_ALREADY_CONNECTED;
|
|
|
|
if (versionRequested != VIRTUAL_CHANNEL_VERSION_WIN2000)
|
|
{
|
|
|
|
}
|
|
|
|
for (index = 0; index < channelCount; index++)
|
|
{
|
|
pChannelDef = &pChannel[index];
|
|
|
|
if (freerdp_channels_find_channel_open_data_by_name(channels, pChannelDef->name) != 0)
|
|
{
|
|
return CHANNEL_RC_BAD_CHANNEL;
|
|
}
|
|
}
|
|
|
|
pChannelClientData = &channels->clientDataList[channels->clientDataCount];
|
|
pChannelClientData->pChannelInitEventProc = pChannelInitEventProc;
|
|
pChannelClientData->pInitHandle = *ppInitHandle;
|
|
channels->clientDataCount++;
|
|
|
|
settings = channels->settings;
|
|
|
|
for (index = 0; index < channelCount; index++)
|
|
{
|
|
pChannelDef = &pChannel[index];
|
|
pChannelOpenData = &channels->openDataList[channels->openDataCount];
|
|
|
|
OpenHandle = g_open_handle_sequence++;
|
|
|
|
pChannelOpenData->OpenHandle = OpenHandle;
|
|
pChannelOpenData->channels = channels;
|
|
|
|
HashTable_Add(g_OpenHandles, (void*) (UINT_PTR) OpenHandle, (void*) pChannelOpenData);
|
|
|
|
pChannelOpenData->flags = 1; /* init */
|
|
strncpy(pChannelOpenData->name, pChannelDef->name, CHANNEL_NAME_LEN);
|
|
pChannelOpenData->options = pChannelDef->options;
|
|
|
|
if (settings->ChannelCount < CHANNEL_MAX_COUNT)
|
|
{
|
|
channel = &settings->ChannelDefArray[settings->ChannelCount];
|
|
strncpy(channel->name, pChannelDef->name, 7);
|
|
channel->options = pChannelDef->options;
|
|
channels->settings->ChannelCount++;
|
|
}
|
|
|
|
channels->openDataCount++;
|
|
}
|
|
|
|
return CHANNEL_RC_OK;
|
|
}
|
|
|
|
UINT VCAPITYPE FreeRDP_VirtualChannelOpen(LPVOID pInitHandle, LPDWORD pOpenHandle,
|
|
PCHAR pChannelName, PCHANNEL_OPEN_EVENT_FN pChannelOpenEventProc)
|
|
{
|
|
void* pInterface;
|
|
rdpChannels* channels;
|
|
CHANNEL_INIT_DATA* pChannelInitData;
|
|
CHANNEL_OPEN_DATA* pChannelOpenData;
|
|
|
|
pChannelInitData = (CHANNEL_INIT_DATA*) pInitHandle;
|
|
channels = pChannelInitData->channels;
|
|
pInterface = pChannelInitData->pInterface;
|
|
|
|
if (!pOpenHandle)
|
|
return CHANNEL_RC_BAD_CHANNEL_HANDLE;
|
|
|
|
if (!pChannelOpenEventProc)
|
|
return CHANNEL_RC_BAD_PROC;
|
|
|
|
if (!channels->is_connected)
|
|
return CHANNEL_RC_NOT_CONNECTED;
|
|
|
|
pChannelOpenData = freerdp_channels_find_channel_open_data_by_name(channels, pChannelName);
|
|
|
|
if (!pChannelOpenData)
|
|
return CHANNEL_RC_UNKNOWN_CHANNEL_NAME;
|
|
|
|
if (pChannelOpenData->flags == 2)
|
|
return CHANNEL_RC_ALREADY_OPEN;
|
|
|
|
pChannelOpenData->flags = 2; /* open */
|
|
pChannelOpenData->pInterface = pInterface;
|
|
pChannelOpenData->pChannelOpenEventProc = pChannelOpenEventProc;
|
|
*pOpenHandle = pChannelOpenData->OpenHandle;
|
|
|
|
return CHANNEL_RC_OK;
|
|
}
|
|
|
|
UINT VCAPITYPE FreeRDP_VirtualChannelClose(DWORD openHandle)
|
|
{
|
|
CHANNEL_OPEN_DATA* pChannelOpenData;
|
|
|
|
pChannelOpenData = HashTable_GetItemValue(g_OpenHandles, (void*) (UINT_PTR) openHandle);
|
|
|
|
if (!pChannelOpenData)
|
|
return CHANNEL_RC_BAD_CHANNEL_HANDLE;
|
|
|
|
if (pChannelOpenData->flags != 2)
|
|
return CHANNEL_RC_NOT_OPEN;
|
|
|
|
pChannelOpenData->flags = 0;
|
|
|
|
return CHANNEL_RC_OK;
|
|
}
|
|
|
|
UINT VCAPITYPE FreeRDP_VirtualChannelWrite(DWORD openHandle, LPVOID pData, ULONG dataLength, LPVOID pUserData)
|
|
{
|
|
rdpChannels* channels;
|
|
CHANNEL_OPEN_DATA* pChannelOpenData;
|
|
CHANNEL_OPEN_EVENT* pChannelOpenEvent;
|
|
|
|
pChannelOpenData = HashTable_GetItemValue(g_OpenHandles, (void*) (UINT_PTR) openHandle);
|
|
|
|
if (!pChannelOpenData)
|
|
return CHANNEL_RC_BAD_CHANNEL_HANDLE;
|
|
|
|
channels = pChannelOpenData->channels;
|
|
|
|
if (!channels)
|
|
return CHANNEL_RC_BAD_CHANNEL_HANDLE;
|
|
|
|
if (!channels->is_connected)
|
|
return CHANNEL_RC_NOT_CONNECTED;
|
|
|
|
if (!pData)
|
|
return CHANNEL_RC_NULL_DATA;
|
|
|
|
if (!dataLength)
|
|
return CHANNEL_RC_ZERO_LENGTH;
|
|
|
|
if (pChannelOpenData->flags != 2)
|
|
return CHANNEL_RC_NOT_OPEN;
|
|
|
|
pChannelOpenEvent = (CHANNEL_OPEN_EVENT*) malloc(sizeof(CHANNEL_OPEN_EVENT));
|
|
|
|
if (!pChannelOpenEvent)
|
|
return CHANNEL_RC_NO_MEMORY;
|
|
|
|
pChannelOpenEvent->Data = pData;
|
|
pChannelOpenEvent->DataLength = dataLength;
|
|
pChannelOpenEvent->UserData = pUserData;
|
|
pChannelOpenEvent->pChannelOpenData = pChannelOpenData;
|
|
|
|
MessageQueue_Post(channels->queue, (void*) channels, 0, (void*) pChannelOpenEvent, NULL);
|
|
|
|
return CHANNEL_RC_OK;
|
|
}
|
|
|
|
static BOOL freerdp_channels_is_loaded(rdpChannels* channels, PVIRTUALCHANNELENTRY entry)
|
|
{
|
|
int i;
|
|
|
|
for (i=0; i<channels->clientDataCount; i++)
|
|
{
|
|
CHANNEL_CLIENT_DATA* pChannelClientData = &channels->clientDataList[i];
|
|
|
|
if (pChannelClientData->entry == entry)
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
int freerdp_channels_client_load(rdpChannels* channels, rdpSettings* settings, PVIRTUALCHANNELENTRY entry, void* data)
|
|
{
|
|
int status;
|
|
CHANNEL_ENTRY_POINTS_FREERDP EntryPoints;
|
|
CHANNEL_CLIENT_DATA* pChannelClientData;
|
|
|
|
if (channels->clientDataCount + 1 >= CHANNEL_MAX_COUNT)
|
|
{
|
|
WLog_ERR(TAG, "error: too many channels");
|
|
return 1;
|
|
}
|
|
|
|
if (freerdp_channels_is_loaded(channels, entry))
|
|
{
|
|
WLog_WARN(TAG, "Skipping, channel already loaded");
|
|
return 0;
|
|
}
|
|
|
|
pChannelClientData = &channels->clientDataList[channels->clientDataCount];
|
|
pChannelClientData->entry = entry;
|
|
|
|
ZeroMemory(&EntryPoints, sizeof(CHANNEL_ENTRY_POINTS_FREERDP));
|
|
|
|
EntryPoints.cbSize = sizeof(EntryPoints);
|
|
EntryPoints.protocolVersion = VIRTUAL_CHANNEL_VERSION_WIN2000;
|
|
EntryPoints.pVirtualChannelInit = FreeRDP_VirtualChannelInit;
|
|
EntryPoints.pVirtualChannelOpen = FreeRDP_VirtualChannelOpen;
|
|
EntryPoints.pVirtualChannelClose = FreeRDP_VirtualChannelClose;
|
|
EntryPoints.pVirtualChannelWrite = FreeRDP_VirtualChannelWrite;
|
|
|
|
g_pInterface = NULL;
|
|
EntryPoints.MagicNumber = FREERDP_CHANNEL_MAGIC_NUMBER;
|
|
EntryPoints.ppInterface = &g_pInterface;
|
|
EntryPoints.pExtendedData = data;
|
|
|
|
/* enable VirtualChannelInit */
|
|
channels->can_call_init = TRUE;
|
|
channels->settings = settings;
|
|
|
|
EnterCriticalSection(&g_channels_lock);
|
|
|
|
g_ChannelInitData.channels = channels;
|
|
status = pChannelClientData->entry((PCHANNEL_ENTRY_POINTS) &EntryPoints);
|
|
|
|
LeaveCriticalSection(&g_channels_lock);
|
|
|
|
/* disable MyVirtualChannelInit */
|
|
channels->settings = NULL;
|
|
channels->can_call_init = FALSE;
|
|
|
|
if (!status)
|
|
{
|
|
WLog_ERR(TAG, "error: channel export function call failed");
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* this is called when processing the command line parameters
|
|
* called only from main thread
|
|
*/
|
|
int freerdp_channels_load_plugin(rdpChannels* channels, rdpSettings* settings, const char* name, void* data)
|
|
{
|
|
void* entry;
|
|
|
|
entry = (PVIRTUALCHANNELENTRY) freerdp_load_channel_addin_entry(name, NULL, NULL, FREERDP_ADDIN_CHANNEL_STATIC);
|
|
|
|
if (!entry)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
return freerdp_channels_client_load(channels, settings, entry, data);
|
|
}
|