matt mooney | e9837bb | 2011-05-26 06:17:11 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 matt mooney <mfm@muteddisk.com> |
| 3 | * 2005-2007 Takahiro Hirofuchi |
| 4 | * |
| 5 | * This program is free software: you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation, either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 17 | */ |
| 18 | |
matt mooney | e9837bb | 2011-05-26 06:17:11 -0700 | [diff] [blame] | 19 | #include <ctype.h> |
Harvey Yang | a6bb875 | 2012-11-15 16:32:49 +0800 | [diff] [blame] | 20 | #include <limits.h> |
matt mooney | e9837bb | 2011-05-26 06:17:11 -0700 | [diff] [blame] | 21 | #include <stdint.h> |
| 22 | #include <stdio.h> |
| 23 | #include <stdlib.h> |
| 24 | #include <string.h> |
| 25 | |
| 26 | #include <getopt.h> |
| 27 | #include <unistd.h> |
| 28 | |
| 29 | #include "vhci_driver.h" |
| 30 | #include "usbip_common.h" |
| 31 | #include "usbip_network.h" |
| 32 | #include "usbip.h" |
| 33 | |
| 34 | static const char usbip_detach_usage_string[] = |
| 35 | "usbip detach <args>\n" |
| 36 | " -p, --port=<port> " USBIP_VHCI_DRV_NAME |
| 37 | " port the device is on\n"; |
| 38 | |
| 39 | void usbip_detach_usage(void) |
| 40 | { |
| 41 | printf("usage: %s", usbip_detach_usage_string); |
| 42 | } |
| 43 | |
| 44 | static int detach_port(char *port) |
| 45 | { |
| 46 | int ret; |
| 47 | uint8_t portnum; |
Harvey Yang | a6bb875 | 2012-11-15 16:32:49 +0800 | [diff] [blame] | 48 | char path[PATH_MAX+1]; |
matt mooney | e9837bb | 2011-05-26 06:17:11 -0700 | [diff] [blame] | 49 | |
Stefan Reif | 5037307 | 2013-02-22 12:13:33 +0100 | [diff] [blame] | 50 | for (unsigned int i = 0; i < strlen(port); i++) |
matt mooney | e9837bb | 2011-05-26 06:17:11 -0700 | [diff] [blame] | 51 | if (!isdigit(port[i])) { |
| 52 | err("invalid port %s", port); |
| 53 | return -1; |
| 54 | } |
| 55 | |
| 56 | /* check max port */ |
| 57 | |
| 58 | portnum = atoi(port); |
| 59 | |
Harvey Yang | a6bb875 | 2012-11-15 16:32:49 +0800 | [diff] [blame] | 60 | /* remove the port state file */ |
| 61 | |
| 62 | snprintf(path, PATH_MAX, VHCI_STATE_PATH"/port%d", portnum); |
| 63 | |
| 64 | remove(path); |
| 65 | rmdir(VHCI_STATE_PATH); |
| 66 | |
matt mooney | e9837bb | 2011-05-26 06:17:11 -0700 | [diff] [blame] | 67 | ret = usbip_vhci_driver_open(); |
| 68 | if (ret < 0) { |
| 69 | err("open vhci_driver"); |
| 70 | return -1; |
| 71 | } |
| 72 | |
| 73 | ret = usbip_vhci_detach_device(portnum); |
| 74 | if (ret < 0) |
| 75 | return -1; |
| 76 | |
| 77 | usbip_vhci_driver_close(); |
| 78 | |
| 79 | return ret; |
| 80 | } |
| 81 | |
| 82 | int usbip_detach(int argc, char *argv[]) |
| 83 | { |
| 84 | static const struct option opts[] = { |
| 85 | { "port", required_argument, NULL, 'p' }, |
| 86 | { NULL, 0, NULL, 0 } |
| 87 | }; |
| 88 | int opt; |
| 89 | int ret = -1; |
| 90 | |
| 91 | for (;;) { |
| 92 | opt = getopt_long(argc, argv, "p:", opts, NULL); |
| 93 | |
| 94 | if (opt == -1) |
| 95 | break; |
| 96 | |
| 97 | switch (opt) { |
| 98 | case 'p': |
| 99 | ret = detach_port(optarg); |
| 100 | goto out; |
| 101 | default: |
| 102 | goto err_out; |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | err_out: |
| 107 | usbip_detach_usage(); |
| 108 | out: |
| 109 | return ret; |
| 110 | } |