1ccea77e2a
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details [based] [from] [clk] [highbank] [c] you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 355 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com> Reviewed-by: Steve Winslow <swinslow@gmail.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190519154041.837383322@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
125 lines
2.3 KiB
C
125 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2011 matt mooney <mfm@muteddisk.com>
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* 2005-2007 Takahiro Hirofuchi
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*/
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#include <ctype.h>
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#include <limits.h>
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#include <stdint.h>
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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 <getopt.h>
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#include <unistd.h>
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#include "vhci_driver.h"
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#include "usbip_common.h"
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#include "usbip_network.h"
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#include "usbip.h"
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static const char usbip_detach_usage_string[] =
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"usbip detach <args>\n"
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" -p, --port=<port> " USBIP_VHCI_DRV_NAME
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" port the device is on\n";
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void usbip_detach_usage(void)
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{
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printf("usage: %s", usbip_detach_usage_string);
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}
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static int detach_port(char *port)
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{
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int ret = 0;
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uint8_t portnum;
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char path[PATH_MAX+1];
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int i;
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struct usbip_imported_device *idev;
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int found = 0;
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unsigned int port_len = strlen(port);
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for (unsigned int i = 0; i < port_len; i++)
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if (!isdigit(port[i])) {
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err("invalid port %s", port);
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return -1;
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}
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portnum = atoi(port);
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ret = usbip_vhci_driver_open();
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if (ret < 0) {
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err("open vhci_driver");
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return -1;
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}
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/* check for invalid port */
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for (i = 0; i < vhci_driver->nports; i++) {
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idev = &vhci_driver->idev[i];
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if (idev->port == portnum) {
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found = 1;
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if (idev->status != VDEV_ST_NULL)
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break;
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info("Port %d is already detached!\n", idev->port);
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goto call_driver_close;
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}
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}
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if (!found) {
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err("Invalid port %s > maxports %d",
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port, vhci_driver->nports);
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goto call_driver_close;
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}
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/* remove the port state file */
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snprintf(path, PATH_MAX, VHCI_STATE_PATH"/port%d", portnum);
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remove(path);
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rmdir(VHCI_STATE_PATH);
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ret = usbip_vhci_detach_device(portnum);
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if (ret < 0) {
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ret = -1;
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err("Port %d detach request failed!\n", portnum);
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goto call_driver_close;
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}
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info("Port %d is now detached!\n", portnum);
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call_driver_close:
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usbip_vhci_driver_close();
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return ret;
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}
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int usbip_detach(int argc, char *argv[])
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{
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static const struct option opts[] = {
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{ "port", required_argument, NULL, 'p' },
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{ NULL, 0, NULL, 0 }
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};
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int opt;
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int ret = -1;
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for (;;) {
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opt = getopt_long(argc, argv, "p:", opts, NULL);
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if (opt == -1)
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break;
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switch (opt) {
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case 'p':
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ret = detach_port(optarg);
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goto out;
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default:
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goto err_out;
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}
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}
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err_out:
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usbip_detach_usage();
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out:
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return ret;
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}
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