void freerdp_channels_free(rdpChannels * chan_man)
{
rdpChannelsList* list;
rdpChannelsList* prev;
freerdp_mutex_free(chan_man->sync_data_mutex);
list_free(chan_man->sync_data_list);
freerdp_sem_free(chan_man->event_sem);
wait_obj_free(chan_man->signal);
/* Remove from global list */
freerdp_mutex_lock(g_mutex_list);
for (prev = NULL, list = g_channels_list; list; prev = list, list = list->next)
{
if (list->channels == chan_man)
break;
}
if (list)
{
if (prev)
prev->next = list->next;
else
g_channels_list = list->next;
xfree(list);
}
freerdp_mutex_unlock(g_mutex_list);
xfree(chan_man);
}
/**
* called only from main thread
*/
static void freerdp_channels_process_sync(rdpChannels* chan_man, freerdp* instance)
{
rdpChannel* lrdp_chan;
struct sync_data* item;
struct channel_data* lchan_data;
while (chan_man->sync_data_list->head != NULL)
{
freerdp_mutex_lock(chan_man->sync_data_mutex);
item = (struct sync_data*)list_dequeue(chan_man->sync_data_list);
freerdp_mutex_unlock(chan_man->sync_data_mutex);
lchan_data = chan_man->chans + item->index;
lrdp_chan = freerdp_channels_find_channel_by_name(chan_man, instance->settings,
lchan_data->name, &item->index);
if (lrdp_chan != NULL)
instance->SendChannelData(instance, lrdp_chan->channel_id, item->data, item->data_length);
if (lchan_data->open_event_proc != 0)
{
lchan_data->open_event_proc(lchan_data->open_handle,
CHANNEL_EVENT_WRITE_COMPLETE,
item->user_data, sizeof(void *), sizeof(void *), 0);
}
xfree(item);
}
}
void svc_plugin_init(rdpSvcPlugin* plugin, CHANNEL_ENTRY_POINTS* pEntryPoints)
{
rdpSvcPluginList* list;
/**
* The channel manager will guarantee only one thread can call
* VirtualChannelInit at a time. So this should be safe.
*/
if (g_mutex == NULL)
g_mutex = freerdp_mutex_new();
memcpy(&plugin->channel_entry_points, pEntryPoints, pEntryPoints->cbSize);
plugin->priv = xnew(rdpSvcPluginPrivate);
/* Add it to the global list */
list = xnew(rdpSvcPluginList);
list->plugin = plugin;
freerdp_mutex_lock(g_mutex);
list->next = g_svc_plugin_list;
g_svc_plugin_list = list;
freerdp_mutex_unlock(g_mutex);
plugin->channel_entry_points.pVirtualChannelInit(&plugin->priv->init_handle,
&plugin->channel_def, 1, VIRTUAL_CHANNEL_VERSION_WIN2000, svc_plugin_init_event);
}
boolean WTSVirtualChannelRead(
/* __in */ void* hChannelHandle,
/* __in */ uint32 TimeOut,
/* __out */ uint8* Buffer,
/* __in */ uint32 BufferSize,
/* __out */ uint32* pBytesRead)
{
wts_data_item* item;
rdpPeerChannel* channel = (rdpPeerChannel*) hChannelHandle;
item = (wts_data_item*) list_peek(channel->receive_queue);
if (item == NULL)
{
wait_obj_clear(channel->receive_event);
*pBytesRead = 0;
return true;
}
*pBytesRead = item->length;
if (item->length > BufferSize)
return false;
/* remove the first element (same as what we just peek) */
freerdp_mutex_lock(channel->mutex);
list_dequeue(channel->receive_queue);
if (list_size(channel->receive_queue) == 0)
wait_obj_clear(channel->receive_event);
freerdp_mutex_unlock(channel->mutex);
memcpy(Buffer, item->buffer, item->length);
wts_data_item_free(item) ;
return true;
}
void test_mutex(void)
{
freerdp_mutex mutex;
mutex = freerdp_mutex_new();
freerdp_mutex_lock(mutex);
freerdp_mutex_unlock(mutex);
freerdp_mutex_free(mutex);
}
/* can be called from any thread */
static uint32 FREERDP_CC MyVirtualChannelWrite(uint32 openHandle, void* pData, uint32 dataLength,
void* pUserData)
{
rdpChannels* chan_man;
struct channel_data* lchan;
struct sync_data* item;
int index;
chan_man = freerdp_channels_find_by_open_handle(openHandle, &index);
if ((chan_man == NULL) || (index < 0) || (index >= CHANNEL_MAX_COUNT))
{
DEBUG_CHANNELS("error bad chanhan");
return CHANNEL_RC_BAD_CHANNEL_HANDLE;
}
if (!chan_man->is_connected)
{
DEBUG_CHANNELS("error not connected");
return CHANNEL_RC_NOT_CONNECTED;
}
if (pData == 0)
{
DEBUG_CHANNELS("error bad pData");
return CHANNEL_RC_NULL_DATA;
}
if (dataLength == 0)
{
DEBUG_CHANNELS("error bad dataLength");
return CHANNEL_RC_ZERO_LENGTH;
}
lchan = chan_man->chans + index;
if (lchan->flags != 2)
{
DEBUG_CHANNELS("error not open");
return CHANNEL_RC_NOT_OPEN;
}
freerdp_mutex_lock(chan_man->sync_data_mutex); /* lock channels->sync* vars */
if (!chan_man->is_connected)
{
freerdp_mutex_unlock(chan_man->sync_data_mutex);
DEBUG_CHANNELS("error not connected");
return CHANNEL_RC_NOT_CONNECTED;
}
item = xnew(struct sync_data);
item->data = pData;
item->data_length = dataLength;
item->user_data = pUserData;
item->index = index;
list_enqueue(chan_man->sync_data_list, item);
freerdp_mutex_unlock(chan_man->sync_data_mutex);
/* set the event */
wait_obj_set(chan_man->signal);
return CHANNEL_RC_OK;
}
static void wts_queue_send_item(rdpPeerChannel* channel, wts_data_item* item)
{
WTSVirtualChannelManager* vcm;
vcm = channel->vcm;
item->channel_id = channel->channel_id;
freerdp_mutex_lock(vcm->mutex);
list_enqueue(vcm->send_queue, item);
freerdp_mutex_unlock(vcm->mutex);
wait_obj_set(vcm->send_event);
}
boolean WTSVirtualChannelClose(
/* __in */ void* hChannelHandle)
{
STREAM* s;
wts_data_item* item;
WTSVirtualChannelManager* vcm;
rdpPeerChannel* channel = (rdpPeerChannel*) hChannelHandle;
if (channel)
{
vcm = channel->vcm;
if (channel->channel_type == RDP_PEER_CHANNEL_TYPE_SVC)
{
if (channel->index < channel->client->settings->num_channels)
channel->client->settings->channels[channel->index].handle = NULL;
}
else
{
freerdp_mutex_lock(vcm->mutex);
list_remove(vcm->dvc_channel_list, channel);
freerdp_mutex_unlock(vcm->mutex);
if (channel->dvc_open_state == DVC_OPEN_STATE_SUCCEEDED)
{
s = stream_new(8);
wts_write_drdynvc_header(s, CLOSE_REQUEST_PDU, channel->channel_id);
WTSVirtualChannelWrite(vcm->drdynvc_channel, stream_get_head(s), stream_get_length(s), NULL);
stream_free(s);
}
}
if (channel->receive_data)
stream_free(channel->receive_data);
if (channel->receive_event)
wait_obj_free(channel->receive_event);
if (channel->receive_queue)
{
while ((item = (wts_data_item*) list_dequeue(channel->receive_queue)) != NULL)
{
wts_data_item_free(item);
}
list_free(channel->receive_queue);
}
if (channel->mutex)
freerdp_mutex_free(channel->mutex);
xfree(channel);
}
return true;
}
/**
* this is called when processing the command line parameters
* called only from main thread
*/
int freerdp_channels_load_plugin(rdpChannels* chan_man, rdpSettings* settings,
const char* name, void* data)
{
struct lib_data* lib;
CHANNEL_ENTRY_POINTS_EX ep;
int ok;
DEBUG_CHANNELS("%s", name);
if (chan_man->num_libs + 1 >= CHANNEL_MAX_COUNT)
{
DEBUG_CHANNELS("too many channels");
return 1;
}
lib = chan_man->libs + chan_man->num_libs;
lib->entry = (PVIRTUALCHANNELENTRY)freerdp_load_plugin(name, CHANNEL_EXPORT_FUNC_NAME);
if (lib->entry == NULL)
{
DEBUG_CHANNELS("failed to find export function");
return 1;
}
ep.cbSize = sizeof(ep);
ep.protocolVersion = VIRTUAL_CHANNEL_VERSION_WIN2000;
ep.pVirtualChannelInit = MyVirtualChannelInit;
ep.pVirtualChannelOpen = MyVirtualChannelOpen;
ep.pVirtualChannelClose = MyVirtualChannelClose;
ep.pVirtualChannelWrite = MyVirtualChannelWrite;
ep.pExtendedData = data;
ep.pVirtualChannelEventPush = MyVirtualChannelEventPush;
/* enable MyVirtualChannelInit */
chan_man->can_call_init = 1;
chan_man->settings = settings;
freerdp_mutex_lock(g_mutex_init);
g_init_chan_man = chan_man;
ok = lib->entry((PCHANNEL_ENTRY_POINTS)&ep);
g_init_chan_man = NULL;
freerdp_mutex_unlock(g_mutex_init);
/* disable MyVirtualChannelInit */
chan_man->settings = 0;
chan_man->can_call_init = 0;
if (!ok)
{
DEBUG_CHANNELS("export function call failed");
return 1;
}
return 0;
}
static void wts_queue_receive_data(rdpPeerChannel* channel, const uint8* buffer, uint32 length)
{
wts_data_item* item;
item = xnew(wts_data_item);
item->length = length;
item->buffer = xmalloc(length);
memcpy(item->buffer, buffer, length);
freerdp_mutex_lock(channel->mutex);
list_enqueue(channel->receive_queue, item);
freerdp_mutex_unlock(channel->mutex);
wait_obj_set(channel->receive_event);
}
static void
scard_irp_request(DEVICE* device, IRP* irp)
{
COMPLETIONIDINFO* CompletionIdInfo;
SCARD_DEVICE* scard = (SCARD_DEVICE*)device;
/* Begin TS Client defect workaround. */
CompletionIdInfo= xnew(COMPLETIONIDINFO);
CompletionIdInfo->ID = irp->CompletionId;/* "duplicate" member is set
* to false by "xnew()"
*/
freerdp_mutex_lock(scard->CompletionIdsMutex);
scard_mark_duplicate_id(scard, irp->CompletionId);
list_enqueue(scard->CompletionIds, CompletionIdInfo);
freerdp_mutex_unlock(scard->CompletionIdsMutex);
irp->Complete = scard_irp_complete; /* Overwrite the previous
* assignment made in
* "irp_new()".
*/
/* End TS Client defect workaround. */
if (irp->MajorFunction == IRP_MJ_DEVICE_CONTROL &&
scard_async_op(irp))
{
/*
* certain potentially long running operations
* get their own thread
* TODO: revise this mechanism.. maybe worker pool
*/
struct scard_irp_thread_args *args = xmalloc(sizeof(struct scard_irp_thread_args));
args->thread = freerdp_thread_new();
args->scard = scard;
args->irp = irp;
freerdp_thread_start(args->thread, scard_process_irp_thread_func, args);
return;
}
freerdp_thread_lock(scard->thread);
list_enqueue(scard->irp_list, irp);
freerdp_thread_unlock(scard->thread);
freerdp_thread_signal(scard->thread);
}
/**
* go through and inform all the libraries that we are initialized
* called only from main thread
*/
int freerdp_channels_pre_connect(rdpChannels* chan_man, freerdp* instance)
{
int index;
struct lib_data* llib;
CHANNEL_DEF lchannel_def;
void* dummy;
DEBUG_CHANNELS("enter");
chan_man->instance = instance;
/**
* If rdpsnd is registered but not rdpdr, it's necessary to register a fake
* rdpdr channel to make sound work. This is a workaround for Window 7 and
* Windows 2008
*/
if (freerdp_channels_find_channel_data_by_name(chan_man, "rdpsnd", 0) != 0 &&
freerdp_channels_find_channel_data_by_name(chan_man, "rdpdr", 0) == 0)
{
lchannel_def.options = CHANNEL_OPTION_INITIALIZED |
CHANNEL_OPTION_ENCRYPT_RDP;
strcpy(lchannel_def.name, "rdpdr");
chan_man->can_call_init = 1;
chan_man->settings = instance->settings;
freerdp_mutex_lock(g_mutex_init);
g_init_chan_man = chan_man;
MyVirtualChannelInit(&dummy, &lchannel_def, 1,
VIRTUAL_CHANNEL_VERSION_WIN2000, 0);
g_init_chan_man = NULL;
freerdp_mutex_unlock(g_mutex_init);
chan_man->can_call_init = 0;
chan_man->settings = 0;
DEBUG_CHANNELS("registered fake rdpdr for rdpsnd.");
}
for (index = 0; index < chan_man->num_libs; index++)
{
llib = chan_man->libs + index;
if (llib->init_event_proc != 0)
{
llib->init_event_proc(llib->init_handle, CHANNEL_EVENT_INITIALIZED,
0, 0);
}
}
return 0;
}
/* returns the chan_man for the rdp instance passed in */
static rdpChannels* freerdp_channels_find_by_instance(freerdp* instance)
{
rdpChannelsList* list;
rdpChannels* chan_man;
freerdp_mutex_lock(g_mutex_list);
for (list = g_channels_list; list; list = list->next)
{
chan_man = list->channels;
if (chan_man->instance == instance)
{
freerdp_mutex_unlock(g_mutex_list);
return chan_man;
}
}
freerdp_mutex_unlock(g_mutex_list);
return NULL;
}
/* returns the chan_man for the rdp instance passed in */
static rdpChanMan* freerdp_chanman_find_by_rdp_inst(freerdp* instance)
{
rdpChanManList* list;
rdpChanMan* chan_man;
freerdp_mutex_lock(g_mutex_list);
for (list = g_chan_man_list; list; list = list->next)
{
chan_man = list->chan_man;
if (chan_man->instance == instance)
{
freerdp_mutex_unlock(g_mutex_list);
return chan_man;
}
}
freerdp_mutex_unlock(g_mutex_list);
return NULL;
}
static rdpSvcPlugin* svc_plugin_find_by_open_handle(uint32 open_handle)
{
rdpSvcPluginList * list;
rdpSvcPlugin * plugin;
freerdp_mutex_lock(g_mutex);
for (list = g_svc_plugin_list; list; list = list->next)
{
plugin = list->plugin;
if (plugin->priv->open_handle == open_handle)
{
freerdp_mutex_unlock(g_mutex);
return plugin;
}
}
freerdp_mutex_unlock(g_mutex);
return NULL;
}
boolean WTSVirtualChannelWrite(
/* __in */ void* hChannelHandle,
/* __in */ uint8* Buffer,
/* __in */ uint32 Length,
/* __out */ uint32* pBytesWritten)
{
uint32 written = 0;
wts_data_item* item;
boolean result = false;
rdpPeerChannel* channel = (rdpPeerChannel*) hChannelHandle;
WTSVirtualChannelManager* vcm ;
if (channel == NULL)
return false;
vcm = channel->vcm ;
if (channel->channel_type == RDP_PEER_CHANNEL_TYPE_SVC)
{
item = xnew(wts_data_item);
item->channel_id = channel->channel_id;
item->buffer = xmalloc(Length);
item->length = Length;
memcpy(item->buffer, Buffer, Length);
freerdp_mutex_lock(vcm->mutex);
list_enqueue(vcm->send_queue, item);
freerdp_mutex_unlock(vcm->mutex);
wait_obj_set(vcm->send_event);
written = Length;
result = true;
}
else
{
/* TODO: Send to DVC channel */
}
if (pBytesWritten != NULL)
*pBytesWritten = written;
return result;
}
static void
scard_irp_complete(IRP* irp)
{
/* This function is (mostly) a copy of the statically-declared "irp_complete()"
* function except that this function adds extra operations for the
* smart card's handling of duplicate "CompletionID"s. This function needs
* to be in this file so that "scard_irp_request()" can reference it.
*/
int pos;
boolean duplicate;
SCARD_DEVICE* scard = (SCARD_DEVICE*)irp->device;
DEBUG_SVC("DeviceId %d FileId %d CompletionId %d", irp->device->id, irp->FileId, irp->CompletionId);
pos = stream_get_pos(irp->output);
stream_set_pos(irp->output, 12);
stream_write_uint32(irp->output, irp->IoStatus);
stream_set_pos(irp->output, pos);
/* Begin TS Client defect workaround. */
freerdp_mutex_lock(scard->CompletionIdsMutex);
/* Remove from the list the item identified by the CompletionID.
* The function returns whether or not it was a duplicate CompletionID.
*/
duplicate = scard_check_for_duplicate_id(scard, irp->CompletionId);
freerdp_mutex_unlock(scard->CompletionIdsMutex);
if (false == duplicate)
{
svc_plugin_send(irp->devman->plugin, irp->output);
irp->output = NULL;
}
/* End TS Client defect workaround. */
/* irp_free(irp); The "irp_free()" function is statically-declared
* and so is not available to be called
* here. Instead, call it indirectly by calling
* the IRP's "Discard()" function,
* which has already been assigned
* to point to "irp_free()" in "irp_new()".
*/
irp->Discard(irp);
}
rdpChanMan* freerdp_chanman_new(void)
{
rdpChanMan* chan_man;
rdpChanManList* list;
chan_man = xnew(rdpChanMan);
chan_man->sync_data_sem = freerdp_sem_new(1);
chan_man->event_sem = freerdp_sem_new(1);
chan_man->signal = wait_obj_new();
/* Add it to the global list */
list = xnew(rdpChanManList);
list->chan_man = chan_man;
freerdp_mutex_lock(g_mutex_list);
list->next = g_chan_man_list;
g_chan_man_list = list;
freerdp_mutex_unlock(g_mutex_list);
return chan_man;
}
static void svc_plugin_remove(rdpSvcPlugin* plugin)
{
rdpSvcPluginList* list;
rdpSvcPluginList* prev;
/* Remove from global list */
freerdp_mutex_lock(g_mutex);
for (prev = NULL, list = g_svc_plugin_list; list; prev = list, list = list->next)
{
if (list->plugin == plugin)
break;
}
if (list)
{
if (prev)
prev->next = list->next;
else
g_svc_plugin_list = list->next;
xfree(list);
}
freerdp_mutex_unlock(g_mutex);
}
boolean WTSVirtualChannelManagerCheckFileDescriptor(WTSVirtualChannelManager* vcm)
{
boolean result = true;
wts_data_item* item;
wait_obj_clear(vcm->send_event);
freerdp_mutex_lock(vcm->mutex);
while ((item = (wts_data_item*) list_dequeue(vcm->send_queue)) != NULL)
{
if (vcm->client->SendChannelData(vcm->client, item->channel_id, item->buffer, item->length) == false)
{
result = false;
}
wts_data_item_free(item);
if (result == false)
break;
}
freerdp_mutex_unlock(vcm->mutex);
return result;
}
boolean WTSVirtualChannelManagerCheckFileDescriptor(WTSVirtualChannelManager* vcm)
{
boolean result = true;
wts_data_item* item;
rdpPeerChannel* channel;
uint32 dynvc_caps;
if (vcm->drdynvc_state == DRDYNVC_STATE_NONE && vcm->client->activated)
{
/* Initialize drdynvc channel once and only once. */
vcm->drdynvc_state = DRDYNVC_STATE_INITIALIZED;
channel = WTSVirtualChannelOpenEx(vcm, "drdynvc", 0);
if (channel)
{
vcm->drdynvc_channel = channel;
dynvc_caps = 0x00010050; /* DYNVC_CAPS_VERSION1 (4 bytes) */
WTSVirtualChannelWrite(channel, (uint8*) &dynvc_caps, sizeof(dynvc_caps), NULL);
}
}
wait_obj_clear(vcm->send_event);
freerdp_mutex_lock(vcm->mutex);
while ((item = (wts_data_item*) list_dequeue(vcm->send_queue)) != NULL)
{
if (vcm->client->SendChannelData(vcm->client, item->channel_id, item->buffer, item->length) == false)
{
result = false;
}
wts_data_item_free(item);
if (result == false)
break;
}
freerdp_mutex_unlock(vcm->mutex);
return result;
}
static void WTSProcessChannelData(rdpPeerChannel* channel, int channelId, uint8* data, int size, int flags, int total_size)
{
wts_data_item* item;
if (flags & CHANNEL_FLAG_FIRST)
{
stream_set_pos(channel->receive_data, 0);
}
stream_check_size(channel->receive_data, size);
stream_write(channel->receive_data, data, size);
if (flags & CHANNEL_FLAG_LAST)
{
if (stream_get_length(channel->receive_data) != total_size)
{
printf("WTSProcessChannelData: read error\n");
}
if (channel->channel_type == RDP_PEER_CHANNEL_TYPE_DVC)
{
/* TODO: Receive DVC channel data */
}
else
{
item = xnew(wts_data_item);
item->length = stream_get_length(channel->receive_data);
item->buffer = xmalloc(item->length);
memcpy(item->buffer, stream_get_head(channel->receive_data), item->length);
freerdp_mutex_lock(channel->mutex);
list_enqueue(channel->receive_queue, item);
freerdp_mutex_unlock(channel->mutex);
wait_obj_set(channel->receive_event);
}
stream_set_pos(channel->receive_data, 0);
}
}
/* returns the chan_man for the open handle passed in */
static rdpChannels* freerdp_channels_find_by_open_handle(int open_handle, int* pindex)
{
rdpChannelsList* list;
rdpChannels* chan_man;
int lindex;
freerdp_mutex_lock(g_mutex_list);
for (list = g_channels_list; list; list = list->next)
{
chan_man = list->channels;
for (lindex = 0; lindex < chan_man->num_chans; lindex++)
{
if (chan_man->chans[lindex].open_handle == open_handle)
{
freerdp_mutex_unlock(g_mutex_list);
*pindex = lindex;
return chan_man;
}
}
}
freerdp_mutex_unlock(g_mutex_list);
return NULL;
}
/**
* must be called by same thread that calls freerdp_chanman_load_plugin
* according to MS docs
* only called from main thread
*/
static uint32 FREERDP_CC MyVirtualChannelInit(void** ppInitHandle, PCHANNEL_DEF pChannel,
int channelCount, uint32 versionRequested,
PCHANNEL_INIT_EVENT_FN pChannelInitEventProc)
{
rdpChannels* chan_man;
int index;
struct lib_data* llib;
struct channel_data* lchan;
rdpChannel* lrdp_chan;
PCHANNEL_DEF lchan_def;
chan_man = g_init_chan_man;
chan_man->init_handles[chan_man->num_init_handles].chan_man = chan_man;
*ppInitHandle = &chan_man->init_handles[chan_man->num_init_handles];
chan_man->num_init_handles++;
DEBUG_CHANNELS("enter");
if (!chan_man->can_call_init)
{
DEBUG_CHANNELS("error not in entry");
return CHANNEL_RC_NOT_IN_VIRTUALCHANNELENTRY;
}
if (ppInitHandle == 0)
{
DEBUG_CHANNELS("error bad pphan");
return CHANNEL_RC_BAD_INIT_HANDLE;
}
if (chan_man->num_chans + channelCount >= CHANNEL_MAX_COUNT)
{
DEBUG_CHANNELS("error too many channels");
return CHANNEL_RC_TOO_MANY_CHANNELS;
}
if (pChannel == 0)
{
DEBUG_CHANNELS("error bad pchan");
return CHANNEL_RC_BAD_CHANNEL;
}
if (chan_man->is_connected)
{
DEBUG_CHANNELS("error already connected");
return CHANNEL_RC_ALREADY_CONNECTED;
}
if (versionRequested != VIRTUAL_CHANNEL_VERSION_WIN2000)
{
DEBUG_CHANNELS("warning version");
}
for (index = 0; index < channelCount; index++)
{
lchan_def = pChannel + index;
if (freerdp_channels_find_channel_data_by_name(chan_man, lchan_def->name, 0) != 0)
{
DEBUG_CHANNELS("error channel already used");
return CHANNEL_RC_BAD_CHANNEL;
}
}
llib = chan_man->libs + chan_man->num_libs;
llib->init_event_proc = pChannelInitEventProc;
llib->init_handle = *ppInitHandle;
chan_man->num_libs++;
for (index = 0; index < channelCount; index++)
{
lchan_def = pChannel + index;
lchan = chan_man->chans + chan_man->num_chans;
freerdp_mutex_lock(g_mutex_list);
lchan->open_handle = g_open_handle_sequence++;
freerdp_mutex_unlock(g_mutex_list);
lchan->flags = 1; /* init */
strncpy(lchan->name, lchan_def->name, CHANNEL_NAME_LEN);
lchan->options = lchan_def->options;
if (chan_man->settings->num_channels < 16)
{
lrdp_chan = chan_man->settings->channels + chan_man->settings->num_channels;
strncpy(lrdp_chan->name, lchan_def->name, 7);
lrdp_chan->options = lchan_def->options;
chan_man->settings->num_channels++;
}
else
{
DEBUG_CHANNELS("warning more than 16 channels");
}
chan_man->num_chans++;
}
return CHANNEL_RC_OK;
}
void* WTSVirtualChannelOpenEx(
/* __in */ WTSVirtualChannelManager* vcm,
/* __in */ const char* pVirtualName,
/* __in */ uint32 flags)
{
int i;
int len;
rdpPeerChannel* channel;
freerdp_peer* client = vcm->client;
STREAM* s;
if ((flags & WTS_CHANNEL_OPTION_DYNAMIC) != 0)
{
if (vcm->drdynvc_channel == NULL || vcm->drdynvc_state != DRDYNVC_STATE_READY)
{
DEBUG_DVC("Dynamic virtual channel not ready.");
return NULL;
}
channel = xnew(rdpPeerChannel);
channel->vcm = vcm;
channel->client = client;
channel->channel_type = RDP_PEER_CHANNEL_TYPE_DVC;
channel->receive_data = stream_new(client->settings->vc_chunk_size);
channel->receive_event = wait_obj_new();
channel->receive_queue = list_new();
channel->mutex = freerdp_mutex_new();
freerdp_mutex_lock(vcm->mutex);
channel->channel_id = vcm->dvc_channel_id_seq++;
list_enqueue(vcm->dvc_channel_list, channel);
freerdp_mutex_unlock(vcm->mutex);
s = stream_new(64);
wts_write_drdynvc_create_request(s, channel->channel_id, pVirtualName);
WTSVirtualChannelWrite(vcm->drdynvc_channel, stream_get_head(s), stream_get_length(s), NULL);
stream_free(s);
DEBUG_DVC("ChannelId %d.%s (total %d)", channel->channel_id, pVirtualName, list_size(vcm->dvc_channel_list));
}
else
{
len = strlen(pVirtualName);
if (len > 8)
return NULL;
for (i = 0; i < client->settings->num_channels; i++)
{
if (client->settings->channels[i].joined &&
strncmp(client->settings->channels[i].name, pVirtualName, len) == 0)
{
break;
}
}
if (i >= client->settings->num_channels)
return NULL;
channel = (rdpPeerChannel*) client->settings->channels[i].handle;
if (channel == NULL)
{
channel = xnew(rdpPeerChannel);
channel->vcm = vcm;
channel->client = client;
channel->channel_id = client->settings->channels[i].channel_id;
channel->index = i;
channel->channel_type = RDP_PEER_CHANNEL_TYPE_SVC;
channel->receive_data = stream_new(client->settings->vc_chunk_size);
channel->receive_event = wait_obj_new();
channel->receive_queue = list_new();
channel->mutex = freerdp_mutex_new();
client->settings->channels[i].handle = channel;
}
}
return channel;
}