diff options
Diffstat (limited to 'kernel/tools/usb/usbip/src/usbip_detach.c')
-rw-r--r-- | kernel/tools/usb/usbip/src/usbip_detach.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/kernel/tools/usb/usbip/src/usbip_detach.c b/kernel/tools/usb/usbip/src/usbip_detach.c new file mode 100644 index 000000000..05c6d1585 --- /dev/null +++ b/kernel/tools/usb/usbip/src/usbip_detach.c @@ -0,0 +1,110 @@ +/* + * Copyright (C) 2011 matt mooney <mfm@muteddisk.com> + * 2005-2007 Takahiro Hirofuchi + * + * 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/>. + */ + +#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; + uint8_t portnum; + char path[PATH_MAX+1]; + + for (unsigned int i = 0; i < strlen(port); i++) + if (!isdigit(port[i])) { + err("invalid port %s", port); + return -1; + } + + /* check max port */ + + portnum = atoi(port); + + /* remove the port state file */ + + snprintf(path, PATH_MAX, VHCI_STATE_PATH"/port%d", portnum); + + remove(path); + rmdir(VHCI_STATE_PATH); + + ret = usbip_vhci_driver_open(); + if (ret < 0) { + err("open vhci_driver"); + return -1; + } + + ret = usbip_vhci_detach_device(portnum); + if (ret < 0) + return -1; + + 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; +} |