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/**
* FreeRDP: A Remote Desktop Protocol Implementation
* Device Redirection Virtual Channel
*
* Copyright 2010-2011 Vic Lee
* Copyright 2010-2012 Marc-Andre Moreau <marcandre.moreau@gmail.com>
* Copyright 2015 Thincast Technologies GmbH
* Copyright 2015 DI (FH) Martin Haimberger <martin.haimberger@thincast.com>
* Copyright 2016 Armin Novak <armin.novak@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.
*/
#include <freerdp/config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <winpr/crt.h>
#include <winpr/stream.h>
#include <freerdp/types.h>
#include <freerdp/addin.h>
#include <freerdp/client/channels.h>
#include <freerdp/channels/log.h>
#include "rdpdr_main.h"
#include "devman.h"
#define TAG CHANNELS_TAG("rdpdr.client")
static void devman_device_free(void* obj)
{
DEVICE* device = (DEVICE*)obj;
if (!device)
return;
IFCALL(device->Free, device);
}
DEVMAN* devman_new(rdpdrPlugin* rdpdr)
{
DEVMAN* devman = NULL;
if (!rdpdr)
return NULL;
devman = (DEVMAN*)calloc(1, sizeof(DEVMAN));
if (!devman)
{
WLog_Print(rdpdr->log, WLOG_INFO, "calloc failed!");
return NULL;
}
devman->plugin = (void*)rdpdr;
devman->id_sequence = 1;
devman->devices = ListDictionary_New(TRUE);
if (!devman->devices)
{
WLog_Print(rdpdr->log, WLOG_INFO, "ListDictionary_New failed!");
free(devman);
return NULL;
}
ListDictionary_ValueObject(devman->devices)->fnObjectFree = devman_device_free;
return devman;
}
void devman_free(DEVMAN* devman)
{
ListDictionary_Free(devman->devices);
free(devman);
}
void devman_unregister_device(DEVMAN* devman, void* key)
{
DEVICE* device = NULL;
if (!devman || !key)
return;
device = (DEVICE*)ListDictionary_Take(devman->devices, key);
if (device)
devman_device_free(device);
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT devman_register_device(DEVMAN* devman, DEVICE* device)
{
void* key = NULL;
if (!devman || !device)
return ERROR_INVALID_PARAMETER;
device->id = devman->id_sequence++;
key = (void*)(size_t)device->id;
if (!ListDictionary_Add(devman->devices, key, device))
{
WLog_INFO(TAG, "ListDictionary_Add failed!");
return ERROR_INTERNAL_ERROR;
}
return CHANNEL_RC_OK;
}
DEVICE* devman_get_device_by_id(DEVMAN* devman, UINT32 id)
{
DEVICE* device = NULL;
void* key = (void*)(size_t)id;
if (!devman)
{
WLog_ERR(TAG, "device manager=%p", devman);
return NULL;
}
device = (DEVICE*)ListDictionary_GetItemValue(devman->devices, key);
if (!device)
WLog_WARN(TAG, "could not find device ID 0x%08" PRIx32, id);
return device;
}
DEVICE* devman_get_device_by_type(DEVMAN* devman, UINT32 type)
{
DEVICE* device = NULL;
ULONG_PTR* keys = NULL;
if (!devman)
return NULL;
ListDictionary_Lock(devman->devices);
const size_t count = ListDictionary_GetKeys(devman->devices, &keys);
for (size_t x = 0; x < count; x++)
{
DEVICE* cur = (DEVICE*)ListDictionary_GetItemValue(devman->devices, (void*)keys[x]);
if (!cur)
continue;
if (cur->type != type)
continue;
device = cur;
break;
}
free(keys);
ListDictionary_Unlock(devman->devices);
return device;
}
static const char DRIVE_SERVICE_NAME[] = "drive";
static const char PRINTER_SERVICE_NAME[] = "printer";
static const char SMARTCARD_SERVICE_NAME[] = "smartcard";
static const char SERIAL_SERVICE_NAME[] = "serial";
static const char PARALLEL_SERVICE_NAME[] = "parallel";
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
UINT devman_load_device_service(DEVMAN* devman, const RDPDR_DEVICE* device, rdpContext* rdpcontext)
{
const char* ServiceName = NULL;
DEVICE_SERVICE_ENTRY_POINTS ep;
PDEVICE_SERVICE_ENTRY entry = NULL;
union
{
const RDPDR_DEVICE* cdp;
RDPDR_DEVICE* dp;
} devconv;
devconv.cdp = device;
if (!devman || !device || !rdpcontext)
return ERROR_INVALID_PARAMETER;
if (device->Type == RDPDR_DTYP_FILESYSTEM)
ServiceName = DRIVE_SERVICE_NAME;
else if (device->Type == RDPDR_DTYP_PRINT)
ServiceName = PRINTER_SERVICE_NAME;
else if (device->Type == RDPDR_DTYP_SMARTCARD)
ServiceName = SMARTCARD_SERVICE_NAME;
else if (device->Type == RDPDR_DTYP_SERIAL)
ServiceName = SERIAL_SERVICE_NAME;
else if (device->Type == RDPDR_DTYP_PARALLEL)
ServiceName = PARALLEL_SERVICE_NAME;
if (!ServiceName)
{
WLog_INFO(TAG, "ServiceName %s did not match!", ServiceName);
return ERROR_INVALID_NAME;
}
if (device->Name)
WLog_INFO(TAG, "Loading device service %s [%s] (static)", ServiceName, device->Name);
else
WLog_INFO(TAG, "Loading device service %s (static)", ServiceName);
entry = (PDEVICE_SERVICE_ENTRY)freerdp_load_channel_addin_entry(ServiceName, NULL,
"DeviceServiceEntry", 0);
if (!entry)
{
WLog_INFO(TAG, "freerdp_load_channel_addin_entry failed!");
return ERROR_INTERNAL_ERROR;
}
ep.devman = devman;
ep.RegisterDevice = devman_register_device;
ep.device = devconv.dp;
ep.rdpcontext = rdpcontext;
return entry(&ep);
}
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