1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19#include <sys/types.h>
20#include <libudev.h>
21
22#include <errno.h>
23#include <stdbool.h>
24#include <stdint.h>
25#include <stdio.h>
26#include <stdlib.h>
27#include <string.h>
28
29#include <getopt.h>
30#include <netdb.h>
31#include <unistd.h>
32
33#include "usbip_common.h"
34#include "usbip_network.h"
35#include "usbip.h"
36
37static const char usbip_list_usage_string[] =
38 "usbip list [-p|--parsable] <args>\n"
39 " -p, --parsable Parsable list format\n"
40 " -r, --remote=<host> List the exportable USB devices on <host>\n"
41 " -l, --local List the local USB devices\n";
42
43void usbip_list_usage(void)
44{
45 printf("usage: %s", usbip_list_usage_string);
46}
47
48static int get_exported_devices(char *host, int sockfd)
49{
50 char product_name[100];
51 char class_name[100];
52 struct op_devlist_reply reply;
53 uint16_t code = OP_REP_DEVLIST;
54 struct usbip_usb_device udev;
55 struct usbip_usb_interface uintf;
56 unsigned int i;
57 int rc, j;
58
59 rc = usbip_net_send_op_common(sockfd, OP_REQ_DEVLIST, 0);
60 if (rc < 0) {
61 dbg("usbip_net_send_op_common failed");
62 return -1;
63 }
64
65 rc = usbip_net_recv_op_common(sockfd, &code);
66 if (rc < 0) {
67 dbg("usbip_net_recv_op_common failed");
68 return -1;
69 }
70
71 memset(&reply, 0, sizeof(reply));
72 rc = usbip_net_recv(sockfd, &reply, sizeof(reply));
73 if (rc < 0) {
74 dbg("usbip_net_recv_op_devlist failed");
75 return -1;
76 }
77 PACK_OP_DEVLIST_REPLY(0, &reply);
78 dbg("exportable devices: %d\n", reply.ndev);
79
80 if (reply.ndev == 0) {
81 info("no exportable devices found on %s", host);
82 return 0;
83 }
84
85 printf("Exportable USB devices\n");
86 printf("======================\n");
87 printf(" - %s\n", host);
88
89 for (i = 0; i < reply.ndev; i++) {
90 memset(&udev, 0, sizeof(udev));
91 rc = usbip_net_recv(sockfd, &udev, sizeof(udev));
92 if (rc < 0) {
93 dbg("usbip_net_recv failed: usbip_usb_device[%d]", i);
94 return -1;
95 }
96 usbip_net_pack_usb_device(0, &udev);
97
98 usbip_names_get_product(product_name, sizeof(product_name),
99 udev.idVendor, udev.idProduct);
100 usbip_names_get_class(class_name, sizeof(class_name),
101 udev.bDeviceClass, udev.bDeviceSubClass,
102 udev.bDeviceProtocol);
103 printf("%11s: %s\n", udev.busid, product_name);
104 printf("%11s: %s\n", "", udev.path);
105 printf("%11s: %s\n", "", class_name);
106
107 for (j = 0; j < udev.bNumInterfaces; j++) {
108 rc = usbip_net_recv(sockfd, &uintf, sizeof(uintf));
109 if (rc < 0) {
110 err("usbip_net_recv failed: usbip_usb_intf[%d]",
111 j);
112
113 return -1;
114 }
115 usbip_net_pack_usb_interface(0, &uintf);
116
117 usbip_names_get_class(class_name, sizeof(class_name),
118 uintf.bInterfaceClass,
119 uintf.bInterfaceSubClass,
120 uintf.bInterfaceProtocol);
121 printf("%11s: %2d - %s\n", "", j, class_name);
122 }
123
124 printf("\n");
125 }
126
127 return 0;
128}
129
130static int list_exported_devices(char *host)
131{
132 int rc;
133 int sockfd;
134
135 sockfd = usbip_net_tcp_connect(host, usbip_port_string);
136 if (sockfd < 0) {
137 err("could not connect to %s:%s: %s", host,
138 usbip_port_string, gai_strerror(sockfd));
139 return -1;
140 }
141 dbg("connected to %s:%s", host, usbip_port_string);
142
143 rc = get_exported_devices(host, sockfd);
144 if (rc < 0) {
145 err("failed to get device list from %s", host);
146 return -1;
147 }
148
149 close(sockfd);
150
151 return 0;
152}
153
154static void print_device(const char *busid, const char *vendor,
155 const char *product, bool parsable)
156{
157 if (parsable)
158 printf("busid=%s#usbid=%.4s:%.4s#", busid, vendor, product);
159 else
160 printf(" - busid %s (%.4s:%.4s)\n", busid, vendor, product);
161}
162
163static void print_product_name(char *product_name, bool parsable)
164{
165 if (!parsable)
166 printf(" %s\n", product_name);
167}
168
169static int list_devices(bool parsable)
170{
171 struct udev *udev;
172 struct udev_enumerate *enumerate;
173 struct udev_list_entry *devices, *dev_list_entry;
174 struct udev_device *dev;
175 const char *path;
176 const char *idVendor;
177 const char *idProduct;
178 const char *bConfValue;
179 const char *bNumIntfs;
180 const char *busid;
181 char product_name[128];
182 int ret = -1;
183
184
185 udev = udev_new();
186
187
188 enumerate = udev_enumerate_new(udev);
189
190
191
192
193 udev_enumerate_add_match_subsystem(enumerate, "usb");
194 udev_enumerate_add_nomatch_sysattr(enumerate, "bDeviceClass", "09");
195 udev_enumerate_add_nomatch_sysattr(enumerate, "bInterfaceNumber", NULL);
196 udev_enumerate_scan_devices(enumerate);
197
198 devices = udev_enumerate_get_list_entry(enumerate);
199
200
201 udev_list_entry_foreach(dev_list_entry, devices) {
202 path = udev_list_entry_get_name(dev_list_entry);
203 dev = udev_device_new_from_syspath(udev, path);
204
205
206 idVendor = udev_device_get_sysattr_value(dev, "idVendor");
207 idProduct = udev_device_get_sysattr_value(dev, "idProduct");
208 bConfValue = udev_device_get_sysattr_value(dev, "bConfigurationValue");
209 bNumIntfs = udev_device_get_sysattr_value(dev, "bNumInterfaces");
210 busid = udev_device_get_sysname(dev);
211 if (!idVendor || !idProduct || !bConfValue || !bNumIntfs) {
212 err("problem getting device attributes: %s",
213 strerror(errno));
214 goto err_out;
215 }
216
217
218 usbip_names_get_product(product_name, sizeof(product_name),
219 strtol(idVendor, NULL, 16),
220 strtol(idProduct, NULL, 16));
221
222
223 print_device(busid, idVendor, idProduct, parsable);
224 print_product_name(product_name, parsable);
225
226 printf("\n");
227
228 udev_device_unref(dev);
229 }
230
231 ret = 0;
232
233err_out:
234 udev_enumerate_unref(enumerate);
235 udev_unref(udev);
236
237 return ret;
238}
239
240int usbip_list(int argc, char *argv[])
241{
242 static const struct option opts[] = {
243 { "parsable", no_argument, NULL, 'p' },
244 { "remote", required_argument, NULL, 'r' },
245 { "local", no_argument, NULL, 'l' },
246 { NULL, 0, NULL, 0 }
247 };
248
249 bool parsable = false;
250 int opt;
251 int ret = -1;
252
253 if (usbip_names_init(USBIDS_FILE))
254 err("failed to open %s", USBIDS_FILE);
255
256 for (;;) {
257 opt = getopt_long(argc, argv, "pr:l", opts, NULL);
258
259 if (opt == -1)
260 break;
261
262 switch (opt) {
263 case 'p':
264 parsable = true;
265 break;
266 case 'r':
267 ret = list_exported_devices(optarg);
268 goto out;
269 case 'l':
270 ret = list_devices(parsable);
271 goto out;
272 default:
273 goto err_out;
274 }
275 }
276
277err_out:
278 usbip_list_usage();
279out:
280 usbip_names_free();
281
282 return ret;
283}
284
