static int drdynvc_process_close_request(drdynvcPlugin* drdynvc, int Sp, int cbChId, wStream* s)
{
UINT32 ChannelId;
wStream* data_out;
int value;
int error;
ChannelId = drdynvc_read_variable_uint(s, cbChId);
DEBUG_DVC("ChannelId=%d", ChannelId);
dvcman_close_channel(drdynvc->channel_mgr, ChannelId);
data_out = Stream_New(NULL, 4);
value = (CLOSE_REQUEST_PDU << 4) | (cbChId & 0x03);
Stream_Write_UINT8(data_out, value);
drdynvc_write_variable_uint(data_out, ChannelId);
error = svc_plugin_send((rdpSvcPlugin*) drdynvc, data_out);
if (error != CHANNEL_RC_OK)
{
DEBUG_WARN("VirtualChannelWrite failed %d", error);
return 1;
}
drdynvc->channel_error = error;
return 0;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT drdynvc_process_close_request(drdynvcPlugin* drdynvc, int Sp,
int cbChId, wStream* s)
{
int value;
UINT error;
UINT32 ChannelId;
wStream* data_out;
if (Stream_GetRemainingLength(s) < drdynvc_cblen_to_bytes(cbChId))
return ERROR_INVALID_DATA;
ChannelId = drdynvc_read_variable_uint(s, cbChId);
WLog_Print(drdynvc->log, WLOG_DEBUG, "process_close_request: Sp=%d cbChId=%d, ChannelId=%"PRIu32"",
Sp,
cbChId, ChannelId);
if ((error = dvcman_close_channel(drdynvc->channel_mgr, ChannelId)))
{
WLog_Print(drdynvc->log, WLOG_ERROR, "dvcman_close_channel failed with error %"PRIu32"!", error);
return error;
}
data_out = Stream_New(NULL, 4);
if (!data_out)
{
WLog_Print(drdynvc->log, WLOG_ERROR, "Stream_New failed!");
return CHANNEL_RC_NO_MEMORY;
}
value = (CLOSE_REQUEST_PDU << 4) | (cbChId & 0x03);
Stream_Write_UINT8(data_out, value);
drdynvc_write_variable_uint(data_out, ChannelId);
error = drdynvc_send(drdynvc, data_out);
if (error)
WLog_Print(drdynvc->log, WLOG_ERROR, "VirtualChannelWriteEx failed with %s [%08"PRIX32"]",
WTSErrorToString(error), error);
return error;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT drdynvc_process_close_request(drdynvcPlugin* drdynvc, int Sp,
int cbChId, wStream* s)
{
int value;
UINT error;
UINT32 ChannelId;
wStream* data_out;
ChannelId = drdynvc_read_variable_uint(s, cbChId);
WLog_DBG(TAG, "process_close_request: Sp=%d cbChId=%d, ChannelId=%d", Sp, cbChId, ChannelId);
if ((error = dvcman_close_channel(drdynvc->channel_mgr, ChannelId)))
{
WLog_ERR(TAG, "dvcman_close_channel failed with error %lu!", error);
return error;
}
data_out = Stream_New(NULL, 4);
if (!data_out)
{
WLog_ERR(TAG, "Stream_New failed!");
return CHANNEL_RC_NO_MEMORY;
}
value = (CLOSE_REQUEST_PDU << 4) | (cbChId & 0x03);
Stream_Write_UINT8(data_out, value);
drdynvc_write_variable_uint(data_out, ChannelId);
error = drdynvc_send(drdynvc, data_out);
if (error)
WLog_ERR(TAG, "VirtualChannelWrite failed with %s [%08X]",
WTSErrorToString(error), error);
return error;
}
int drdynvc_write_data(drdynvcPlugin* drdynvc, uint32 ChannelId, char* data, uint32 data_size)
{
STREAM* data_out;
uint32 pos = 0;
uint32 cbChId;
uint32 cbLen;
uint32 chunk_len;
int error;
DEBUG_DVC("ChannelId=%d size=%d", ChannelId, data_size);
data_out = stream_new(CHANNEL_CHUNK_LENGTH);
stream_set_pos(data_out, 1);
cbChId = drdynvc_write_variable_uint(data_out, ChannelId);
if (data_size <= CHANNEL_CHUNK_LENGTH - pos)
{
pos = stream_get_pos(data_out);
stream_set_pos(data_out, 0);
stream_write_uint8(data_out, 0x30 | cbChId);
stream_set_pos(data_out, pos);
stream_write(data_out, data, data_size);
error = svc_plugin_send((rdpSvcPlugin*)drdynvc, data_out);
}
else
{
/* Fragment the data */
cbLen = drdynvc_write_variable_uint(data_out, data_size);
pos = stream_get_pos(data_out);
stream_set_pos(data_out, 0);
stream_write_uint8(data_out, 0x20 | cbChId | (cbLen << 2));
stream_set_pos(data_out, pos);
chunk_len = CHANNEL_CHUNK_LENGTH - pos;
stream_write(data_out, data, chunk_len);
data += chunk_len;
data_size -= chunk_len;
error = svc_plugin_send((rdpSvcPlugin*)drdynvc, data_out);
while (error == CHANNEL_RC_OK && data_size > 0)
{
data_out = stream_new(CHANNEL_CHUNK_LENGTH);
stream_set_pos(data_out, 1);
cbChId = drdynvc_write_variable_uint(data_out, ChannelId);
pos = stream_get_pos(data_out);
stream_set_pos(data_out, 0);
stream_write_uint8(data_out, 0x30 | cbChId);
stream_set_pos(data_out, pos);
chunk_len = data_size;
if (chunk_len > CHANNEL_CHUNK_LENGTH - pos)
chunk_len = CHANNEL_CHUNK_LENGTH - pos;
stream_write(data_out, data, chunk_len);
data += chunk_len;
data_size -= chunk_len;
error = svc_plugin_send((rdpSvcPlugin*)drdynvc, data_out);
}
}
if (error != CHANNEL_RC_OK)
{
DEBUG_WARN("VirtualChannelWrite failed %d", error);
return 1;
}
return 0;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT drdynvc_write_data(drdynvcPlugin* drdynvc, UINT32 ChannelId,
const BYTE* data, UINT32 dataSize)
{
wStream* data_out;
size_t pos;
UINT32 cbChId;
UINT32 cbLen;
unsigned long chunkLength;
UINT status;
if (!drdynvc)
return CHANNEL_RC_BAD_CHANNEL_HANDLE;
WLog_Print(drdynvc->log, WLOG_DEBUG, "write_data: ChannelId=%"PRIu32" size=%"PRIu32"", ChannelId,
dataSize);
data_out = Stream_New(NULL, CHANNEL_CHUNK_LENGTH);
if (!data_out)
{
WLog_Print(drdynvc->log, WLOG_ERROR, "Stream_New failed!");
return CHANNEL_RC_NO_MEMORY;
}
Stream_SetPosition(data_out, 1);
cbChId = drdynvc_write_variable_uint(data_out, ChannelId);
pos = Stream_GetPosition(data_out);
if (dataSize == 0)
{
Stream_SetPosition(data_out, 0);
Stream_Write_UINT8(data_out, 0x40 | cbChId);
Stream_SetPosition(data_out, pos);
status = drdynvc_send(drdynvc, data_out);
}
else if (dataSize <= CHANNEL_CHUNK_LENGTH - pos)
{
Stream_SetPosition(data_out, 0);
Stream_Write_UINT8(data_out, 0x30 | cbChId);
Stream_SetPosition(data_out, pos);
Stream_Write(data_out, data, dataSize);
status = drdynvc_send(drdynvc, data_out);
}
else
{
/* Fragment the data */
cbLen = drdynvc_write_variable_uint(data_out, dataSize);
pos = Stream_GetPosition(data_out);
Stream_SetPosition(data_out, 0);
Stream_Write_UINT8(data_out, 0x20 | cbChId | (cbLen << 2));
Stream_SetPosition(data_out, pos);
chunkLength = CHANNEL_CHUNK_LENGTH - pos;
Stream_Write(data_out, data, chunkLength);
data += chunkLength;
dataSize -= chunkLength;
status = drdynvc_send(drdynvc, data_out);
while (status == CHANNEL_RC_OK && dataSize > 0)
{
data_out = Stream_New(NULL, CHANNEL_CHUNK_LENGTH);
if (!data_out)
{
WLog_Print(drdynvc->log, WLOG_ERROR, "Stream_New failed!");
return CHANNEL_RC_NO_MEMORY;
}
Stream_SetPosition(data_out, 1);
cbChId = drdynvc_write_variable_uint(data_out, ChannelId);
pos = Stream_GetPosition(data_out);
Stream_SetPosition(data_out, 0);
Stream_Write_UINT8(data_out, 0x30 | cbChId);
Stream_SetPosition(data_out, pos);
chunkLength = dataSize;
if (chunkLength > CHANNEL_CHUNK_LENGTH - pos)
chunkLength = CHANNEL_CHUNK_LENGTH - pos;
Stream_Write(data_out, data, chunkLength);
data += chunkLength;
dataSize -= chunkLength;
status = drdynvc_send(drdynvc, data_out);
}
}
if (status != CHANNEL_RC_OK)
{
WLog_Print(drdynvc->log, WLOG_ERROR, "VirtualChannelWriteEx failed with %s [%08"PRIX32"]",
WTSErrorToString(status), status);
return status;
}
return CHANNEL_RC_OK;
}
int drdynvc_write_data(drdynvcPlugin* drdynvc, UINT32 ChannelId, BYTE* data, UINT32 dataSize)
{
wStream* data_out;
UINT32 pos = 0;
UINT32 cbChId;
UINT32 cbLen;
UINT32 chunkLength;
int status;
DEBUG_DVC("ChannelId=%d size=%d", ChannelId, dataSize);
if (drdynvc->channel_error != CHANNEL_RC_OK)
return 1;
data_out = Stream_New(NULL, CHANNEL_CHUNK_LENGTH);
Stream_SetPosition(data_out, 1);
cbChId = drdynvc_write_variable_uint(data_out, ChannelId);
if (dataSize == 0)
{
pos = Stream_GetPosition(data_out);
Stream_SetPosition(data_out, 0);
Stream_Write_UINT8(data_out, 0x40 | cbChId);
Stream_SetPosition(data_out, pos);
status = svc_plugin_send((rdpSvcPlugin*) drdynvc, data_out);
}
else if (dataSize <= CHANNEL_CHUNK_LENGTH - pos)
{
pos = Stream_GetPosition(data_out);
Stream_SetPosition(data_out, 0);
Stream_Write_UINT8(data_out, 0x30 | cbChId);
Stream_SetPosition(data_out, pos);
Stream_Write(data_out, data, dataSize);
status = svc_plugin_send((rdpSvcPlugin*) drdynvc, data_out);
}
else
{
/* Fragment the data */
cbLen = drdynvc_write_variable_uint(data_out, dataSize);
pos = Stream_GetPosition(data_out);
Stream_SetPosition(data_out, 0);
Stream_Write_UINT8(data_out, 0x20 | cbChId | (cbLen << 2));
Stream_SetPosition(data_out, pos);
chunkLength = CHANNEL_CHUNK_LENGTH - pos;
Stream_Write(data_out, data, chunkLength);
data += chunkLength;
dataSize -= chunkLength;
status = svc_plugin_send((rdpSvcPlugin*) drdynvc, data_out);
while (status == CHANNEL_RC_OK && dataSize > 0)
{
data_out = Stream_New(NULL, CHANNEL_CHUNK_LENGTH);
Stream_SetPosition(data_out, 1);
cbChId = drdynvc_write_variable_uint(data_out, ChannelId);
pos = Stream_GetPosition(data_out);
Stream_SetPosition(data_out, 0);
Stream_Write_UINT8(data_out, 0x30 | cbChId);
Stream_SetPosition(data_out, pos);
chunkLength = dataSize;
if (chunkLength > CHANNEL_CHUNK_LENGTH - pos)
chunkLength = CHANNEL_CHUNK_LENGTH - pos;
Stream_Write(data_out, data, chunkLength);
data += chunkLength;
dataSize -= chunkLength;
status = svc_plugin_send((rdpSvcPlugin*)drdynvc, data_out);
}
}
if (status != CHANNEL_RC_OK)
{
drdynvc->channel_error = status;
DEBUG_WARN("VirtualChannelWrite failed %d", status);
return 1;
}
return 0;
}