568 lines
13 KiB
C
568 lines
13 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* RemoteFX USB Redirection
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*
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* Copyright 2012 Atrust corp.
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* Copyright 2012 Alfred Liu <alfred.liu@atruscorp.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "urbdrc_types.h"
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#include "urbdrc_main.h"
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#include "libusb_udevice.h"
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int libusb_debug;
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#define BASIC_STATE_FUNC_DEFINED(_arg, _type) \
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static _type udevman_get_##_arg (IUDEVMAN * idevman) \
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{ \
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UDEVMAN * udevman = (UDEVMAN *) idevman; \
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return udevman->_arg; \
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} \
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static void udevman_set_##_arg (IUDEVMAN * idevman, _type _t) \
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{ \
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UDEVMAN * udevman = (UDEVMAN *) idevman; \
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udevman->_arg = _t; \
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}
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#define BASIC_STATE_FUNC_REGISTER(_arg, _man) \
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_man->iface.get_##_arg = udevman_get_##_arg; \
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_man->iface.set_##_arg = udevman_set_##_arg
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typedef struct _UDEVMAN UDEVMAN;
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struct _UDEVMAN
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{
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IUDEVMAN iface;
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IUDEVICE* idev; /* iterator device */
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IUDEVICE* head; /* head device in linked list */
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IUDEVICE* tail; /* tail device in linked list */
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uint32 defUsbDevice;
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UINT16 flags;
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int device_num;
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int sem_timeout;
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pthread_mutex_t devman_loading;
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sem_t sem_urb_lock;
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};
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typedef UDEVMAN * PUDEVMAN;
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static void
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udevman_rewind(IUDEVMAN * idevman)
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{
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UDEVMAN * udevman = (UDEVMAN *) idevman;
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udevman->idev = udevman->head;
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}
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static int
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udevman_has_next(IUDEVMAN * idevman)
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{
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UDEVMAN * udevman = (UDEVMAN *) idevman;
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if (udevman->idev == NULL)
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return 0;
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else
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return 1;
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}
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static IUDEVICE*
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udevman_get_next(IUDEVMAN * idevman)
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{
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UDEVMAN * udevman = (UDEVMAN *) idevman;
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IUDEVICE* pdev;
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pdev = udevman->idev;
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udevman->idev = (IUDEVICE*) ((UDEVICE*)udevman->idev)->next;
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return pdev;
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}
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static IUDEVICE*
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udevman_get_udevice_by_addr(IUDEVMAN * idevman, int bus_number, int dev_number)
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{
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IUDEVICE * pdev;
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idevman->loading_lock(idevman);
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idevman->rewind (idevman);
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while (idevman->has_next (idevman))
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{
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pdev = idevman->get_next (idevman);
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if (pdev->get_bus_number(pdev) == bus_number &&
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pdev->get_dev_number(pdev) == dev_number)
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{
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idevman->loading_unlock(idevman);
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return pdev;
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}
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}
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idevman->loading_unlock(idevman);
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LLOGLN(libusb_debug, ("%s: bus:%d dev:%d not exist in udevman",
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__func__, bus_number, dev_number));
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return NULL;
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}
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static int
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udevman_register_udevice(IUDEVMAN* idevman, int bus_number, int dev_number,
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int UsbDevice,
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UINT16 idVendor,
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UINT16 idProduct,
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int flag)
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{
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UDEVMAN * udevman = (UDEVMAN *) idevman;
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IUDEVICE * pdev = NULL;
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IUDEVICE ** devArray;
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int i, num, addnum = 0;
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pdev = (IUDEVICE *)udevman_get_udevice_by_addr(idevman, bus_number, dev_number);
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if (pdev != NULL)
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return 0;
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if (flag == UDEVMAN_FLAG_ADD_BY_ADDR)
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{
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pdev = udev_new_by_addr(bus_number, dev_number);
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if (pdev == NULL)
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return 0;
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pdev->set_UsbDevice(pdev, UsbDevice);
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idevman->loading_lock(idevman);
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if (udevman->head == NULL)
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{
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/* linked list is empty */
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udevman->head = pdev;
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udevman->tail = pdev;
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}
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else
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{
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/* append device to the end of the linked list */
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udevman->tail->set_p_next(udevman->tail, pdev);
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pdev->set_p_prev(pdev, udevman->tail);
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udevman->tail = pdev;
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}
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udevman->device_num += 1;
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idevman->loading_unlock(idevman);
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}
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else if (flag == UDEVMAN_FLAG_ADD_BY_VID_PID)
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{
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addnum = 0;
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/* register all device that match pid vid */
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num = udev_new_by_id(idVendor, idProduct, &devArray);
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for (i = 0; i < num; i++)
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{
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pdev = devArray[i];
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if (udevman_get_udevice_by_addr(idevman,
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pdev->get_bus_number(pdev),
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pdev->get_dev_number(pdev))
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!= NULL)
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{
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zfree(pdev);
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continue;
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}
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pdev->set_UsbDevice(pdev, UsbDevice);
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idevman->loading_lock(idevman);
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if (udevman->head == NULL)
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{
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/* linked list is empty */
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udevman->head = pdev;
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udevman->tail = pdev;
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}
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else
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{
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/* append device to the end of the linked list */
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udevman->tail->set_p_next(udevman->tail, pdev);
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pdev->set_p_prev(pdev, udevman->tail);
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udevman->tail = pdev;
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}
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udevman->device_num += 1;
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idevman->loading_unlock(idevman);
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addnum++;
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}
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zfree(devArray);
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return addnum;
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}
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else
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{
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printf("udevman_register_udevice: function error!!");
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return 0;
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}
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return 1;
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}
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static int
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udevman_unregister_udevice(IUDEVMAN * idevman, int bus_number, int dev_number)
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{
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UDEVMAN * udevman = (UDEVMAN *) idevman;
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UDEVICE * pdev, * dev;
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int ret = 0, err = 0;
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dev = (UDEVICE *)udevman_get_udevice_by_addr(idevman, bus_number, dev_number);
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idevman->loading_lock(idevman);
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idevman->rewind(idevman);
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while (idevman->has_next(idevman) != 0)
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{
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pdev = (UDEVICE *)idevman->get_next(idevman);
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if (pdev == dev) /* device exists */
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{
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/* set previous device to point to next device */
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if (dev->prev != NULL)
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{
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/* unregistered device is not the head */
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pdev = dev->prev;
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pdev->next = dev->next;
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}
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else
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{
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/* unregistered device is the head, update head */
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udevman->head = (IUDEVICE*)dev->next;
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}
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/* set next device to point to previous device */
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if (dev->next != NULL)
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{
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/* unregistered device is not the tail */
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pdev = (UDEVICE *)dev->next;
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pdev->prev = dev->prev;
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}
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else
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{
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/* unregistered device is the tail, update tail */
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udevman->tail = (IUDEVICE*)dev->prev;
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}
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udevman->device_num--;
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break;
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}
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}
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idevman->loading_unlock(idevman);
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if (dev)
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{
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/* reset device */
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if (err != LIBUSB_ERROR_NO_DEVICE)
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{
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ret = libusb_reset_device(dev->libusb_handle);
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if (ret<0){
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LLOGLN(10, ("libusb_reset_device: ERROR!!ret:%d\n", ret));
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}
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}
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/* release all interface and attach kernel driver */
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dev->iface.attach_kernel_driver((IUDEVICE*)dev);
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if(dev->request_queue) zfree(dev->request_queue);
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/* free the config descriptor that send from windows */
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msusb_msconfig_free(dev->MsConfig);
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libusb_close (dev->libusb_handle);
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libusb_close (dev->hub_handle);
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sem_destroy(&dev->sem_id);
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/* free device info */
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if (dev->devDescriptor)
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zfree(dev->devDescriptor);
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if (dev)
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zfree(dev);
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return 1; /* unregistration successful */
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}
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/* if we reach this point, the device wasn't found */
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return 0;
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}
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static void
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udevman_parse_device_addr (char *str, int *id1, int *id2, char sign)
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{
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char s1[8], *s2;
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memset(s1, 0, sizeof(s1));
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s2 = (strchr(str, sign)) + 1;
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strncpy(s1, str, strlen(str) - (strlen(s2)+1));
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*id1 = atoi(s1);
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*id2 = atoi(s2);
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}
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static void
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udevman_parse_device_pid_vid (char *str, int *id1, int *id2, char sign)
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{
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char s1[8], *s2;
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memset(s1, 0, sizeof(s1));
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s2 = (strchr(str, sign)) + 1;
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strncpy(s1, str, strlen(str) - (strlen(s2)+1));
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*id1 = (int) strtol(s1, NULL, 16);
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*id2 = (int) strtol(s2, NULL, 16);
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}
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static int
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udevman_check_device_exist_by_id(IUDEVMAN * idevman, UINT16 idVendor, UINT16 idProduct)
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{
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if (libusb_open_device_with_vid_pid (NULL, idVendor, idProduct))
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return 1;
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return 0;
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}
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static int
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udevman_is_auto_add(IUDEVMAN * idevman)
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{
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UDEVMAN * udevman = (UDEVMAN *) idevman;
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return (udevman->flags & UDEVMAN_FLAG_ADD_BY_AUTO) ? 1 : 0;
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}
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static IUDEVICE*
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udevman_get_udevice_by_UsbDevice_try_again(IUDEVMAN * idevman, uint32 UsbDevice)
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{
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UDEVICE * pdev;
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idevman->loading_lock(idevman);
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idevman->rewind (idevman);
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while (idevman->has_next (idevman))
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{
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pdev = (UDEVICE *)idevman->get_next (idevman);
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if (pdev->UsbDevice == UsbDevice)
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{
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idevman->loading_unlock(idevman);
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return (IUDEVICE *)pdev;
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}
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}
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idevman->loading_unlock(idevman);
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return NULL;
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}
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static IUDEVICE*
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udevman_get_udevice_by_UsbDevice(IUDEVMAN * idevman, uint32 UsbDevice)
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{
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UDEVICE * pdev;
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idevman->loading_lock(idevman);
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idevman->rewind (idevman);
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while (idevman->has_next (idevman))
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{
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pdev = (UDEVICE *)idevman->get_next (idevman);
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if (pdev->UsbDevice == UsbDevice)
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{
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idevman->loading_unlock(idevman);
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return (IUDEVICE *)pdev;
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}
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}
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idevman->loading_unlock(idevman);
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/* try again */
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pdev = (UDEVICE *)idevman->get_udevice_by_UsbDevice_try_again(idevman, UsbDevice);
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if (pdev)
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{
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return (IUDEVICE *)pdev;
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}
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LLOGLN(libusb_debug, ("udevman_get_udevice_by_UsbDevice: 0x%x ERROR!!\n",
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UsbDevice));
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return NULL;
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}
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static void
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udevman_loading_lock(IUDEVMAN * idevman)
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{
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UDEVMAN * udevman = (UDEVMAN *) idevman;
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pthread_mutex_lock(&udevman->devman_loading);
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}
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static void
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udevman_loading_unlock(IUDEVMAN * idevman)
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{
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UDEVMAN * udevman = (UDEVMAN *) idevman;
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pthread_mutex_unlock(&udevman->devman_loading);
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}
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static void
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udevman_wait_urb(IUDEVMAN * idevman)
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{
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UDEVMAN * udevman = (UDEVMAN *) idevman;
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sem_wait(&udevman->sem_urb_lock);
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}
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static void
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udevman_push_urb(IUDEVMAN * idevman)
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{
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UDEVMAN * udevman = (UDEVMAN *) idevman;
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sem_post(&udevman->sem_urb_lock);
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}
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BASIC_STATE_FUNC_DEFINED(defUsbDevice, uint32)
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BASIC_STATE_FUNC_DEFINED(device_num, int)
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BASIC_STATE_FUNC_DEFINED(sem_timeout, int)
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static void
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udevman_free(IUDEVMAN* idevman)
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{
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UDEVMAN * udevman = (UDEVMAN *) idevman;
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pthread_mutex_destroy(&udevman->devman_loading);
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sem_destroy(&udevman->sem_urb_lock);
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libusb_exit(NULL);
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/* free udevman */
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if (udevman)
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zfree(udevman);
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}
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static void
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udevman_load_interface(UDEVMAN * udevman)
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{
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/* standard */
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udevman->iface.free = udevman_free;
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/* manage devices */
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udevman->iface.rewind = udevman_rewind;
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udevman->iface.get_next = udevman_get_next;
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udevman->iface.has_next = udevman_has_next;
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udevman->iface.register_udevice = udevman_register_udevice;
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udevman->iface.unregister_udevice = udevman_unregister_udevice;
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udevman->iface.get_udevice_by_UsbDevice = udevman_get_udevice_by_UsbDevice;
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udevman->iface.get_udevice_by_UsbDevice_try_again =
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udevman_get_udevice_by_UsbDevice_try_again;
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/* Extension */
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udevman->iface.check_device_exist_by_id = udevman_check_device_exist_by_id;
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udevman->iface.isAutoAdd = udevman_is_auto_add;
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/* Basic state */
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BASIC_STATE_FUNC_REGISTER(defUsbDevice, udevman);
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BASIC_STATE_FUNC_REGISTER(device_num, udevman);
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BASIC_STATE_FUNC_REGISTER(sem_timeout, udevman);
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/* control semaphore or mutex lock */
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udevman->iface.loading_lock = udevman_loading_lock;
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udevman->iface.loading_unlock = udevman_loading_unlock;
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udevman->iface.push_urb = udevman_push_urb;
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udevman->iface.wait_urb = udevman_wait_urb;
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}
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int FreeRDPUDEVMANEntry(PFREERDP_URBDRC_SERVICE_ENTRY_POINTS pEntryPoints)
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{
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UDEVMAN* udevman;
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RDP_PLUGIN_DATA * plugin_data = pEntryPoints->plugin_data;
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uint32 UsbDevice = BASE_USBDEVICE_NUM;
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char * token;
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char * message = "id";
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char hardware_id[16];
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int idVendor;
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int idProduct;
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int bus_number;
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int dev_number;
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int success = 0;
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libusb_init(NULL);
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udevman = (PUDEVMAN)malloc(sizeof(UDEVMAN));
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udevman->device_num = 0;
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udevman->idev = NULL;
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udevman->head = NULL;
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udevman->tail = NULL;
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udevman->sem_timeout = 0;
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udevman->flags = UDEVMAN_FLAG_ADD_BY_VID_PID;
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pthread_mutex_init(&udevman->devman_loading, NULL);
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sem_init(&udevman->sem_urb_lock, 0, MAX_URB_REQUSET_NUM);
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/* load usb device service management */
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udevman_load_interface(udevman);
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/* set debug flag, to enable Debug message for usb data transfer*/
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if (plugin_data->data[2])
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message = (char *)plugin_data->data[2];
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if (strstr(message, "id"))
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udevman->flags = UDEVMAN_FLAG_ADD_BY_VID_PID;
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else if (strstr(message, "addr"))
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udevman->flags = UDEVMAN_FLAG_ADD_BY_ADDR;
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if (strstr(message, "auto"))
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udevman->flags |= UDEVMAN_FLAG_ADD_BY_AUTO;
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libusb_debug = 10;
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if (strstr(message, "debug"))
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{
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libusb_debug = 0;
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udevman->flags |= UDEVMAN_FLAG_DEBUG;
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}
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/* register all usb device */
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token = strtok((char *)plugin_data->data[1], "#");
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while (token)
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|
{
|
|
bus_number = 0;
|
|
dev_number = 0;
|
|
idVendor = 0;
|
|
idProduct = 0;
|
|
|
|
strcpy(hardware_id, token);
|
|
token = strtok(NULL, "#");
|
|
if (udevman->flags & UDEVMAN_FLAG_ADD_BY_VID_PID)
|
|
{
|
|
udevman_parse_device_pid_vid(hardware_id, &idVendor,
|
|
&idProduct,
|
|
'_');
|
|
success = udevman->iface.register_udevice((IUDEVMAN *)udevman,
|
|
0,
|
|
0,
|
|
UsbDevice,
|
|
(UINT16) idVendor,
|
|
(UINT16) idProduct,
|
|
UDEVMAN_FLAG_ADD_BY_VID_PID);
|
|
}
|
|
else if (udevman->flags & UDEVMAN_FLAG_ADD_BY_ADDR)
|
|
{
|
|
udevman_parse_device_addr(hardware_id, &bus_number,
|
|
&dev_number,
|
|
'_');
|
|
success = udevman->iface.register_udevice((IUDEVMAN *)udevman,
|
|
bus_number,
|
|
dev_number,
|
|
UsbDevice,
|
|
0,
|
|
0,
|
|
UDEVMAN_FLAG_ADD_BY_ADDR);
|
|
}
|
|
|
|
if (success)
|
|
UsbDevice++;
|
|
}
|
|
|
|
udevman->defUsbDevice = UsbDevice;
|
|
|
|
pEntryPoints->pRegisterUDEVMAN(pEntryPoints->plugin, (IUDEVMAN*) udevman);
|
|
|
|
return 0;
|
|
}
|