1 files changed, 0 insertions, 391 deletions
diff --git a/drivers/staging/usbip/userspace/libsrc/stub_driver.c b/drivers/staging/usbip/userspace/libsrc/stub_driver.c
deleted file mode 100644
index cc3364345f5f..000000000000
--- a/drivers/staging/usbip/userspace/libsrc/stub_driver.c
+++ /dev/null
@@ -1,391 +0,0 @@
-/*
- * Copyright (C) 2005-2007 Takahiro Hirofuchi
- */
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-
-#include "usbip.h"
-
-/* kernel module name */
-static const char *usbip_stub_driver_name = "usbip-host";
-
-
-struct usbip_stub_driver *stub_driver;
-
-static struct sysfs_driver *open_sysfs_stub_driver(void)
-{
-	int ret;
-
-	char sysfs_mntpath[SYSFS_PATH_MAX];
-	char stub_driver_path[SYSFS_PATH_MAX];
-	struct sysfs_driver *stub_driver;
-
-
-	ret = sysfs_get_mnt_path(sysfs_mntpath, SYSFS_PATH_MAX);
-	if (ret < 0) {
-		err("sysfs must be mounted");
-		return NULL;
-	}
-
-	snprintf(stub_driver_path, SYSFS_PATH_MAX, "%s/%s/usb/%s/%s",
-			sysfs_mntpath, SYSFS_BUS_NAME, SYSFS_DRIVERS_NAME,
-			usbip_stub_driver_name);
-
-	stub_driver = sysfs_open_driver_path(stub_driver_path);
-	if (!stub_driver) {
-		err("usbip-core.ko and usbip-host.ko must be loaded");
-		return NULL;
-	}
-
-	return stub_driver;
-}
-
-
-#define SYSFS_OPEN_RETRIES 100
-
-/* only the first interface value is true! */
-static int32_t read_attr_usbip_status(struct usb_device *udev)
-{
-	char attrpath[SYSFS_PATH_MAX];
-	struct sysfs_attribute *attr;
-	int value = 0;
-	int  ret;
-	struct stat s;
-	int retries = SYSFS_OPEN_RETRIES;
-
-	/* This access is racy!
-	 *
-	 * Just after detach, our driver removes the sysfs
-	 * files and recreates them.
-	 *
-	 * We may try and fail to open the usbip_status of
-	 * an exported device in the (short) window where
-	 * it has been removed and not yet recreated.
-	 *
-	 * This is a bug in the interface. Nothing we can do
-	 * except work around it here by polling for the sysfs
-	 * usbip_status to reappear.
-	 */
-
-	snprintf(attrpath, SYSFS_PATH_MAX, "%s/%s:%d.%d/usbip_status",
-			udev->path, udev->busid,
-			udev->bConfigurationValue,
-			0);
-
-	while (retries > 0) {
-		if (stat(attrpath, &s) == 0)
-			break;
-
-		if (errno != ENOENT) {
-			err("error stat'ing %s", attrpath);
-			return -1;
-		}
-
-		usleep(10000); /* 10ms */
-		retries--;
-	}
-
-	if (retries == 0)
-		err("usbip_status not ready after %d retries",
-			SYSFS_OPEN_RETRIES);
-	else if (retries < SYSFS_OPEN_RETRIES)
-		info("warning: usbip_status ready after %d retries",
-			 SYSFS_OPEN_RETRIES - retries);
-
-	attr = sysfs_open_attribute(attrpath);
-	if (!attr) {
-		err("open %s", attrpath);
-		return -1;
-	}
-
-	ret = sysfs_read_attribute(attr);
-	if (ret) {
-		err("read %s", attrpath);
-		sysfs_close_attribute(attr);
-		return -1;
-	}
-
-	value = atoi(attr->value);
-
-	sysfs_close_attribute(attr);
-
-	return value;
-}
-
-
-static void usbip_exported_device_delete(void *dev)
-{
-	struct usbip_exported_device *edev =
-		(struct usbip_exported_device *) dev;
-
-	sysfs_close_device(edev->sudev);
-	free(dev);
-}
-
-
-static struct usbip_exported_device *usbip_exported_device_new(char *sdevpath)
-{
-	struct usbip_exported_device *edev = NULL;
-
-	edev = (struct usbip_exported_device *) calloc(1, sizeof(*edev));
-	if (!edev) {
-		err("alloc device");
-		return NULL;
-	}
-
-	edev->sudev = sysfs_open_device_path(sdevpath);
-	if (!edev->sudev) {
-		err("open %s", sdevpath);
-		goto err;
-	}
-
-	read_usb_device(edev->sudev, &edev->udev);
-
-	edev->status = read_attr_usbip_status(&edev->udev);
-	if (edev->status < 0)
-		goto err;
-
-	/* reallocate buffer to include usb interface data */
-	size_t size = sizeof(*edev) + edev->udev.bNumInterfaces * sizeof(struct usb_interface);
-	edev = (struct usbip_exported_device *) realloc(edev, size);
-	if (!edev) {
-		err("alloc device");
-		goto err;
-	}
-
-	for (int i=0; i < edev->udev.bNumInterfaces; i++)
-		read_usb_interface(&edev->udev, i, &edev->uinf[i]);
-
-	return edev;
-
-err:
-	if (edev && edev->sudev)
-		sysfs_close_device(edev->sudev);
-	if (edev)
-		free(edev);
-	return NULL;
-}
-
-
-static int check_new(struct dlist *dlist, struct sysfs_device *target)
-{
-	struct sysfs_device *dev;
-
-	dlist_for_each_data(dlist, dev, struct sysfs_device) {
-		if (!strncmp(dev->bus_id, target->bus_id, SYSFS_BUS_ID_SIZE))
-			/* found. not new */
-			return 0;
-	}
-
-	return 1;
-}
-
-static void delete_nothing(void *dev __attribute__((unused)))
-{
-	/* do not delete anything. but, its container will be deleted. */
-}
-
-static int refresh_exported_devices(void)
-{
-	struct sysfs_device	*suinf;  /* sysfs_device of usb_interface */
-	struct dlist		*suinf_list;
-
-	struct sysfs_device	*sudev;  /* sysfs_device of usb_device */
-	struct dlist		*sudev_list;
-
-
-	sudev_list = dlist_new_with_delete(sizeof(struct sysfs_device), delete_nothing);
-
-	suinf_list = sysfs_get_driver_devices(stub_driver->sysfs_driver);
-	if (!suinf_list) {
-		printf("Bind usbip-host.ko to a usb device to be exportable!\n");
-		goto bye;
-	}
-
-	/* collect unique USB devices (not interfaces) */
-	dlist_for_each_data(suinf_list, suinf, struct sysfs_device) {
-
-		/* get usb device of this usb interface */
-		sudev = sysfs_get_device_parent(suinf);
-		if (!sudev) {
-			err("get parent dev of %s", suinf->name);
-			continue;
-		}
-
-		if (check_new(sudev_list, sudev)) {
-			dlist_unshift(sudev_list, sudev);
-		}
-	}
-
-	dlist_for_each_data(sudev_list, sudev, struct sysfs_device) {
-		struct usbip_exported_device *edev;
-
-		edev = usbip_exported_device_new(sudev->path);
-		if (!edev) {
-			err("usbip_exported_device new");
-			continue;
-		}
-
-		dlist_unshift(stub_driver->edev_list, (void *) edev);
-		stub_driver->ndevs++;
-	}
-
-
-	dlist_destroy(sudev_list);
-
-bye:
-
-	return 0;
-}
-
-int usbip_stub_refresh_device_list(void)
-{
-	int ret;
-
-	if (stub_driver->edev_list)
-		dlist_destroy(stub_driver->edev_list);
-
-	stub_driver->ndevs = 0;
-
-	stub_driver->edev_list = dlist_new_with_delete(sizeof(struct usbip_exported_device),
-			usbip_exported_device_delete);
-	if (!stub_driver->edev_list) {
-		err("alloc dlist");
-		return -1;
-	}
-
-	ret = refresh_exported_devices();
-	if (ret < 0)
-		return ret;
-
-	return 0;
-}
-
-int usbip_stub_driver_open(void)
-{
-	int ret;
-
-
-	stub_driver = (struct usbip_stub_driver *) calloc(1, sizeof(*stub_driver));
-	if (!stub_driver) {
-		err("alloc stub_driver");
-		return -1;
-	}
-
-	stub_driver->ndevs = 0;
-
-	stub_driver->edev_list = dlist_new_with_delete(sizeof(struct usbip_exported_device),
-			usbip_exported_device_delete);
-	if (!stub_driver->edev_list) {
-		err("alloc dlist");
-		goto err;
-	}
-
-	stub_driver->sysfs_driver = open_sysfs_stub_driver();
-	if (!stub_driver->sysfs_driver)
-		goto err;
-
-	ret = refresh_exported_devices();
-	if (ret < 0)
-		goto err;
-
-	return 0;
-
-
-err:
-	if (stub_driver->sysfs_driver)
-		sysfs_close_driver(stub_driver->sysfs_driver);
-	if (stub_driver->edev_list)
-		dlist_destroy(stub_driver->edev_list);
-	free(stub_driver);
-
-	stub_driver = NULL;
-	return -1;
-}
-
-
-void usbip_stub_driver_close(void)
-{
-	if (!stub_driver)
-		return;
-
-	if (stub_driver->edev_list)
-		dlist_destroy(stub_driver->edev_list);
-	if (stub_driver->sysfs_driver)
-		sysfs_close_driver(stub_driver->sysfs_driver);
-	free(stub_driver);
-
-	stub_driver = NULL;
-}
-
-int usbip_stub_export_device(struct usbip_exported_device *edev, int sockfd)
-{
-	char attrpath[SYSFS_PATH_MAX];
-	struct sysfs_attribute *attr;
-	char sockfd_buff[30];
-	int ret;
-
-
-	if (edev->status != SDEV_ST_AVAILABLE) {
-		info("device not available, %s", edev->udev.busid);
-		switch( edev->status ) {
-			case SDEV_ST_ERROR:
-				info("     status SDEV_ST_ERROR");
-				break;
-			case SDEV_ST_USED:
-				info("     status SDEV_ST_USED");
-				break;
-			default:
-				info("     status unknown: 0x%x", edev->status);
-		}
-		return -1;
-	}
-
-	/* only the first interface is true */
-	snprintf(attrpath, sizeof(attrpath), "%s/%s:%d.%d/%s",
-			edev->udev.path,
-			edev->udev.busid,
-			edev->udev.bConfigurationValue, 0,
-			"usbip_sockfd");
-
-	attr = sysfs_open_attribute(attrpath);
-	if (!attr) {
-		err("open %s", attrpath);
-		return -1;
-	}
-
-	snprintf(sockfd_buff, sizeof(sockfd_buff), "%d\n", sockfd);
-
-	dbg("write: %s", sockfd_buff);
-
-	ret = sysfs_write_attribute(attr, sockfd_buff, strlen(sockfd_buff));
-	if (ret < 0) {
-		err("write sockfd %s to %s", sockfd_buff, attrpath);
-		goto err_write_sockfd;
-	}
-
-	info("connect %s", edev->udev.busid);
-
-err_write_sockfd:
-	sysfs_close_attribute(attr);
-
-	return ret;
-}
-
-struct usbip_exported_device *usbip_stub_get_device(int num)
-{
-	struct usbip_exported_device *edev;
-	struct dlist		*dlist = stub_driver->edev_list;
-	int count = 0;
-
-	dlist_for_each_data(dlist, edev, struct usbip_exported_device) {
-		if (num == count)
-			return edev;
-		else
-			count++ ;
-	}
-
-	return NULL;
-}