// SPDX-License-Identifier: GPL-2.0-or-later
|
/*
|
* Copyright (C) 2011 matt mooney <mfm@muteddisk.com>
|
* 2005-2007 Takahiro Hirofuchi
|
*/
|
|
#include <ctype.h>
|
#include <limits.h>
|
#include <stdint.h>
|
#include <stdio.h>
|
#include <stdlib.h>
|
#include <string.h>
|
|
#include <getopt.h>
|
#include <unistd.h>
|
|
#include "vhci_driver.h"
|
#include "usbip_common.h"
|
#include "usbip_network.h"
|
#include "usbip.h"
|
|
static const char usbip_detach_usage_string[] =
|
"usbip detach <args>\n"
|
" -p, --port=<port> " USBIP_VHCI_DRV_NAME
|
" port the device is on\n";
|
|
void usbip_detach_usage(void)
|
{
|
printf("usage: %s", usbip_detach_usage_string);
|
}
|
|
static int detach_port(char *port)
|
{
|
int ret = 0;
|
uint8_t portnum;
|
char path[PATH_MAX+1];
|
int i;
|
struct usbip_imported_device *idev;
|
int found = 0;
|
|
unsigned int port_len = strlen(port);
|
|
for (unsigned int i = 0; i < port_len; i++)
|
if (!isdigit(port[i])) {
|
err("invalid port %s", port);
|
return -1;
|
}
|
|
portnum = atoi(port);
|
|
ret = usbip_vhci_driver_open();
|
if (ret < 0) {
|
err("open vhci_driver");
|
return -1;
|
}
|
|
/* check for invalid port */
|
for (i = 0; i < vhci_driver->nports; i++) {
|
idev = &vhci_driver->idev[i];
|
|
if (idev->port == portnum) {
|
found = 1;
|
if (idev->status != VDEV_ST_NULL)
|
break;
|
info("Port %d is already detached!\n", idev->port);
|
goto call_driver_close;
|
}
|
}
|
|
if (!found) {
|
err("Invalid port %s > maxports %d",
|
port, vhci_driver->nports);
|
goto call_driver_close;
|
}
|
|
/* remove the port state file */
|
snprintf(path, PATH_MAX, VHCI_STATE_PATH"/port%d", portnum);
|
|
remove(path);
|
rmdir(VHCI_STATE_PATH);
|
|
ret = usbip_vhci_detach_device(portnum);
|
if (ret < 0) {
|
ret = -1;
|
err("Port %d detach request failed!\n", portnum);
|
goto call_driver_close;
|
}
|
info("Port %d is now detached!\n", portnum);
|
|
call_driver_close:
|
usbip_vhci_driver_close();
|
|
return ret;
|
}
|
|
int usbip_detach(int argc, char *argv[])
|
{
|
static const struct option opts[] = {
|
{ "port", required_argument, NULL, 'p' },
|
{ NULL, 0, NULL, 0 }
|
};
|
int opt;
|
int ret = -1;
|
|
for (;;) {
|
opt = getopt_long(argc, argv, "p:", opts, NULL);
|
|
if (opt == -1)
|
break;
|
|
switch (opt) {
|
case 'p':
|
ret = detach_port(optarg);
|
goto out;
|
default:
|
goto err_out;
|
}
|
}
|
|
err_out:
|
usbip_detach_usage();
|
out:
|
return ret;
|
}
|
