rdpChanMan* freerdp_chanman_new(void)
{
rdpChanMan* chan_man;
rdpChanManList* list;
chan_man = xnew(rdpChanMan);
chan_man->sync_data_mutex = freerdp_mutex_new();
chan_man->sync_data_list = list_new();
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;
}
/**
* 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;
}
