]>
Commit | Line | Data |
---|---|---|
4d7b5c7f TH |
1 | /* |
2 | * Copyright (C) 2003-2008 Takahiro Hirofuchi | |
3 | * | |
4 | * This is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, write to the Free Software | |
16 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, | |
17 | * USA. | |
18 | */ | |
19 | ||
7aaacb43 | 20 | #include <linux/device.h> |
3d0a2a22 | 21 | #include <linux/file.h> |
9720b4bc | 22 | #include <linux/kthread.h> |
99c97852 | 23 | #include <linux/module.h> |
5a0e3ad6 | 24 | |
4d7b5c7f TH |
25 | #include "usbip_common.h" |
26 | #include "stub.h" | |
27 | ||
4d7b5c7f | 28 | /* |
d012c2a5 | 29 | * usbip_status shows the status of usbip-host as long as this driver is bound |
30 | * to the target device. | |
4d7b5c7f | 31 | */ |
b1f56aca GKH |
32 | static ssize_t usbip_status_show(struct device *dev, |
33 | struct device_attribute *attr, char *buf) | |
4d7b5c7f TH |
34 | { |
35 | struct stub_device *sdev = dev_get_drvdata(dev); | |
36 | int status; | |
37 | ||
38 | if (!sdev) { | |
39 | dev_err(dev, "sdev is null\n"); | |
40 | return -ENODEV; | |
41 | } | |
42 | ||
dcf14779 | 43 | spin_lock_irq(&sdev->ud.lock); |
4d7b5c7f | 44 | status = sdev->ud.status; |
dcf14779 | 45 | spin_unlock_irq(&sdev->ud.lock); |
4d7b5c7f TH |
46 | |
47 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
48 | } | |
b1f56aca | 49 | static DEVICE_ATTR_RO(usbip_status); |
4d7b5c7f TH |
50 | |
51 | /* | |
52 | * usbip_sockfd gets a socket descriptor of an established TCP connection that | |
53 | * is used to transfer usbip requests by kernel threads. -1 is a magic number | |
54 | * by which usbip connection is finished. | |
55 | */ | |
56 | static ssize_t store_sockfd(struct device *dev, struct device_attribute *attr, | |
57 | const char *buf, size_t count) | |
58 | { | |
59 | struct stub_device *sdev = dev_get_drvdata(dev); | |
60 | int sockfd = 0; | |
61 | struct socket *socket; | |
f8cfc023 | 62 | int rv; |
4d7b5c7f TH |
63 | |
64 | if (!sdev) { | |
65 | dev_err(dev, "sdev is null\n"); | |
66 | return -ENODEV; | |
67 | } | |
68 | ||
f8cfc023 EO |
69 | rv = sscanf(buf, "%d", &sockfd); |
70 | if (rv != 1) | |
71 | return -EINVAL; | |
4d7b5c7f TH |
72 | |
73 | if (sockfd != -1) { | |
964ea96e | 74 | int err; |
3eed8c03 | 75 | |
4d7b5c7f TH |
76 | dev_info(dev, "stub up\n"); |
77 | ||
dcf14779 | 78 | spin_lock_irq(&sdev->ud.lock); |
4d7b5c7f TH |
79 | |
80 | if (sdev->ud.status != SDEV_ST_AVAILABLE) { | |
81 | dev_err(dev, "not ready\n"); | |
31398f63 | 82 | goto err; |
4d7b5c7f TH |
83 | } |
84 | ||
964ea96e | 85 | socket = sockfd_lookup(sockfd, &err); |
31398f63 KK |
86 | if (!socket) |
87 | goto err; | |
88 | ||
4d7b5c7f TH |
89 | sdev->ud.tcp_socket = socket; |
90 | ||
dcf14779 | 91 | spin_unlock_irq(&sdev->ud.lock); |
4d7b5c7f | 92 | |
8c4e5834 KK |
93 | sdev->ud.tcp_rx = kthread_get_run(stub_rx_loop, &sdev->ud, |
94 | "stub_rx"); | |
95 | sdev->ud.tcp_tx = kthread_get_run(stub_tx_loop, &sdev->ud, | |
96 | "stub_tx"); | |
4d7b5c7f | 97 | |
dcf14779 | 98 | spin_lock_irq(&sdev->ud.lock); |
4d7b5c7f | 99 | sdev->ud.status = SDEV_ST_USED; |
dcf14779 | 100 | spin_unlock_irq(&sdev->ud.lock); |
4d7b5c7f TH |
101 | |
102 | } else { | |
103 | dev_info(dev, "stub down\n"); | |
104 | ||
dcf14779 | 105 | spin_lock_irq(&sdev->ud.lock); |
31398f63 KK |
106 | if (sdev->ud.status != SDEV_ST_USED) |
107 | goto err; | |
108 | ||
dcf14779 | 109 | spin_unlock_irq(&sdev->ud.lock); |
4d7b5c7f TH |
110 | |
111 | usbip_event_add(&sdev->ud, SDEV_EVENT_DOWN); | |
112 | } | |
113 | ||
114 | return count; | |
31398f63 KK |
115 | |
116 | err: | |
117 | spin_unlock_irq(&sdev->ud.lock); | |
964ea96e | 118 | return -EINVAL; |
4d7b5c7f TH |
119 | } |
120 | static DEVICE_ATTR(usbip_sockfd, S_IWUSR, NULL, store_sockfd); | |
121 | ||
122 | static int stub_add_files(struct device *dev) | |
123 | { | |
124 | int err = 0; | |
125 | ||
126 | err = device_create_file(dev, &dev_attr_usbip_status); | |
127 | if (err) | |
128 | goto err_status; | |
129 | ||
130 | err = device_create_file(dev, &dev_attr_usbip_sockfd); | |
131 | if (err) | |
132 | goto err_sockfd; | |
133 | ||
134 | err = device_create_file(dev, &dev_attr_usbip_debug); | |
135 | if (err) | |
136 | goto err_debug; | |
137 | ||
138 | return 0; | |
139 | ||
140 | err_debug: | |
141 | device_remove_file(dev, &dev_attr_usbip_sockfd); | |
4d7b5c7f TH |
142 | err_sockfd: |
143 | device_remove_file(dev, &dev_attr_usbip_status); | |
4d7b5c7f TH |
144 | err_status: |
145 | return err; | |
146 | } | |
147 | ||
148 | static void stub_remove_files(struct device *dev) | |
149 | { | |
150 | device_remove_file(dev, &dev_attr_usbip_status); | |
151 | device_remove_file(dev, &dev_attr_usbip_sockfd); | |
152 | device_remove_file(dev, &dev_attr_usbip_debug); | |
153 | } | |
154 | ||
4d7b5c7f TH |
155 | static void stub_shutdown_connection(struct usbip_device *ud) |
156 | { | |
157 | struct stub_device *sdev = container_of(ud, struct stub_device, ud); | |
158 | ||
159 | /* | |
160 | * When removing an exported device, kernel panic sometimes occurred | |
161 | * and then EIP was sk_wait_data of stub_rx thread. Is this because | |
162 | * sk_wait_data returned though stub_rx thread was already finished by | |
163 | * step 1? | |
164 | */ | |
165 | if (ud->tcp_socket) { | |
1a4b6f66 | 166 | dev_dbg(&sdev->udev->dev, "shutdown tcp_socket %p\n", |
167 | ud->tcp_socket); | |
4d7b5c7f TH |
168 | kernel_sock_shutdown(ud->tcp_socket, SHUT_RDWR); |
169 | } | |
170 | ||
171 | /* 1. stop threads */ | |
b7caecb8 | 172 | if (ud->tcp_rx) { |
ba46ce30 | 173 | kthread_stop_put(ud->tcp_rx); |
b7caecb8 | 174 | ud->tcp_rx = NULL; |
175 | } | |
176 | if (ud->tcp_tx) { | |
ba46ce30 | 177 | kthread_stop_put(ud->tcp_tx); |
b7caecb8 | 178 | ud->tcp_tx = NULL; |
179 | } | |
4d7b5c7f | 180 | |
4d7b5c7f | 181 | /* |
87352760 | 182 | * 2. close the socket |
183 | * | |
184 | * tcp_socket is freed after threads are killed so that usbip_xmit does | |
185 | * not touch NULL socket. | |
4d7b5c7f TH |
186 | */ |
187 | if (ud->tcp_socket) { | |
964ea96e | 188 | sockfd_put(ud->tcp_socket); |
4d7b5c7f TH |
189 | ud->tcp_socket = NULL; |
190 | } | |
191 | ||
192 | /* 3. free used data */ | |
193 | stub_device_cleanup_urbs(sdev); | |
194 | ||
195 | /* 4. free stub_unlink */ | |
196 | { | |
197 | unsigned long flags; | |
198 | struct stub_unlink *unlink, *tmp; | |
199 | ||
200 | spin_lock_irqsave(&sdev->priv_lock, flags); | |
4d7b5c7f TH |
201 | list_for_each_entry_safe(unlink, tmp, &sdev->unlink_tx, list) { |
202 | list_del(&unlink->list); | |
203 | kfree(unlink); | |
204 | } | |
87352760 | 205 | list_for_each_entry_safe(unlink, tmp, &sdev->unlink_free, |
206 | list) { | |
4d7b5c7f TH |
207 | list_del(&unlink->list); |
208 | kfree(unlink); | |
209 | } | |
4d7b5c7f TH |
210 | spin_unlock_irqrestore(&sdev->priv_lock, flags); |
211 | } | |
212 | } | |
213 | ||
214 | static void stub_device_reset(struct usbip_device *ud) | |
215 | { | |
216 | struct stub_device *sdev = container_of(ud, struct stub_device, ud); | |
2d8f4595 | 217 | struct usb_device *udev = sdev->udev; |
4d7b5c7f TH |
218 | int ret; |
219 | ||
1a4b6f66 | 220 | dev_dbg(&udev->dev, "device reset"); |
2d8f4595 | 221 | |
4d7b5c7f TH |
222 | ret = usb_lock_device_for_reset(udev, sdev->interface); |
223 | if (ret < 0) { | |
224 | dev_err(&udev->dev, "lock for reset\n"); | |
dcf14779 | 225 | spin_lock_irq(&ud->lock); |
4d7b5c7f | 226 | ud->status = SDEV_ST_ERROR; |
dcf14779 | 227 | spin_unlock_irq(&ud->lock); |
4d7b5c7f TH |
228 | return; |
229 | } | |
230 | ||
231 | /* try to reset the device */ | |
232 | ret = usb_reset_device(udev); | |
4d7b5c7f TH |
233 | usb_unlock_device(udev); |
234 | ||
dcf14779 | 235 | spin_lock_irq(&ud->lock); |
4d7b5c7f TH |
236 | if (ret) { |
237 | dev_err(&udev->dev, "device reset\n"); | |
238 | ud->status = SDEV_ST_ERROR; | |
4d7b5c7f TH |
239 | } else { |
240 | dev_info(&udev->dev, "device reset\n"); | |
241 | ud->status = SDEV_ST_AVAILABLE; | |
4d7b5c7f | 242 | } |
dcf14779 | 243 | spin_unlock_irq(&ud->lock); |
4d7b5c7f TH |
244 | } |
245 | ||
246 | static void stub_device_unusable(struct usbip_device *ud) | |
247 | { | |
dcf14779 | 248 | spin_lock_irq(&ud->lock); |
4d7b5c7f | 249 | ud->status = SDEV_ST_ERROR; |
dcf14779 | 250 | spin_unlock_irq(&ud->lock); |
4d7b5c7f TH |
251 | } |
252 | ||
4d7b5c7f TH |
253 | /** |
254 | * stub_device_alloc - allocate a new stub_device struct | |
255 | * @interface: usb_interface of a new device | |
256 | * | |
257 | * Allocates and initializes a new stub_device struct. | |
258 | */ | |
b7945b77 | 259 | static struct stub_device *stub_device_alloc(struct usb_device *udev) |
4d7b5c7f TH |
260 | { |
261 | struct stub_device *sdev; | |
b7945b77 VM |
262 | int busnum = udev->bus->busnum; |
263 | int devnum = udev->devnum; | |
4d7b5c7f | 264 | |
b7945b77 | 265 | dev_dbg(&udev->dev, "allocating stub device"); |
4d7b5c7f TH |
266 | |
267 | /* yes, it's a new device */ | |
268 | sdev = kzalloc(sizeof(struct stub_device), GFP_KERNEL); | |
78110bb8 | 269 | if (!sdev) |
4d7b5c7f | 270 | return NULL; |
4d7b5c7f | 271 | |
2d8f4595 | 272 | sdev->udev = usb_get_dev(udev); |
4d7b5c7f TH |
273 | |
274 | /* | |
275 | * devid is defined with devnum when this driver is first allocated. | |
276 | * devnum may change later if a device is reset. However, devid never | |
277 | * changes during a usbip connection. | |
278 | */ | |
b744a45f | 279 | sdev->devid = (busnum << 16) | devnum; |
280 | sdev->ud.side = USBIP_STUB; | |
281 | sdev->ud.status = SDEV_ST_AVAILABLE; | |
4d7b5c7f | 282 | spin_lock_init(&sdev->ud.lock); |
b744a45f | 283 | sdev->ud.tcp_socket = NULL; |
4d7b5c7f TH |
284 | |
285 | INIT_LIST_HEAD(&sdev->priv_init); | |
286 | INIT_LIST_HEAD(&sdev->priv_tx); | |
287 | INIT_LIST_HEAD(&sdev->priv_free); | |
288 | INIT_LIST_HEAD(&sdev->unlink_free); | |
289 | INIT_LIST_HEAD(&sdev->unlink_tx); | |
4d7b5c7f TH |
290 | spin_lock_init(&sdev->priv_lock); |
291 | ||
292 | init_waitqueue_head(&sdev->tx_waitq); | |
293 | ||
294 | sdev->ud.eh_ops.shutdown = stub_shutdown_connection; | |
295 | sdev->ud.eh_ops.reset = stub_device_reset; | |
296 | sdev->ud.eh_ops.unusable = stub_device_unusable; | |
297 | ||
298 | usbip_start_eh(&sdev->ud); | |
299 | ||
b7945b77 | 300 | dev_dbg(&udev->dev, "register new device\n"); |
1a4b6f66 | 301 | |
4d7b5c7f TH |
302 | return sdev; |
303 | } | |
304 | ||
b94b3a62 | 305 | static void stub_device_free(struct stub_device *sdev) |
4d7b5c7f | 306 | { |
4d7b5c7f | 307 | kfree(sdev); |
4d7b5c7f TH |
308 | } |
309 | ||
b7945b77 | 310 | static int stub_probe(struct usb_device *udev) |
4d7b5c7f | 311 | { |
4d7b5c7f | 312 | struct stub_device *sdev = NULL; |
b7945b77 | 313 | const char *udev_busid = dev_name(&udev->dev); |
aa5873e9 | 314 | struct bus_id_priv *busid_priv; |
6080cd0e | 315 | int rc; |
4d7b5c7f | 316 | |
b7945b77 | 317 | dev_dbg(&udev->dev, "Enter\n"); |
4d7b5c7f TH |
318 | |
319 | /* check we should claim or not by busid_table */ | |
aa5873e9 | 320 | busid_priv = get_busid_priv(udev_busid); |
87352760 | 321 | if (!busid_priv || (busid_priv->status == STUB_BUSID_REMOV) || |
b744a45f | 322 | (busid_priv->status == STUB_BUSID_OTHER)) { |
b7945b77 | 323 | dev_info(&udev->dev, |
6165cc51 EW |
324 | "%s is not in match_busid table... skip!\n", |
325 | udev_busid); | |
4d7b5c7f TH |
326 | |
327 | /* | |
328 | * Return value should be ENODEV or ENOXIO to continue trying | |
329 | * other matched drivers by the driver core. | |
330 | * See driver_probe_device() in driver/base/dd.c | |
331 | */ | |
332 | return -ENODEV; | |
333 | } | |
334 | ||
1a4b6f66 | 335 | if (udev->descriptor.bDeviceClass == USB_CLASS_HUB) { |
336 | dev_dbg(&udev->dev, "%s is a usb hub device... skip!\n", | |
337 | udev_busid); | |
4d7b5c7f TH |
338 | return -ENODEV; |
339 | } | |
340 | ||
341 | if (!strcmp(udev->bus->bus_name, "vhci_hcd")) { | |
6165cc51 EW |
342 | dev_dbg(&udev->dev, |
343 | "%s is attached on vhci_hcd... skip!\n", | |
344 | udev_busid); | |
345 | ||
4d7b5c7f TH |
346 | return -ENODEV; |
347 | } | |
348 | ||
d012c2a5 | 349 | /* ok, this is my device */ |
b7945b77 | 350 | sdev = stub_device_alloc(udev); |
4d7b5c7f TH |
351 | if (!sdev) |
352 | return -ENOMEM; | |
353 | ||
b7945b77 VM |
354 | dev_info(&udev->dev, |
355 | "usbip-host: register new device (bus %u dev %u)\n", | |
356 | udev->bus->busnum, udev->devnum); | |
4d7b5c7f | 357 | |
aa5873e9 EK |
358 | busid_priv->shutdown_busid = 0; |
359 | ||
b7945b77 VM |
360 | /* set private data to usb_device */ |
361 | dev_set_drvdata(&udev->dev, sdev); | |
aa5873e9 | 362 | busid_priv->sdev = sdev; |
a46034ca | 363 | busid_priv->udev = udev; |
4d7b5c7f | 364 | |
6080cd0e VM |
365 | /* |
366 | * Claim this hub port. | |
367 | * It doesn't matter what value we pass as owner | |
368 | * (struct dev_state) as long as it is unique. | |
369 | */ | |
370 | rc = usb_hub_claim_port(udev->parent, udev->portnum, | |
9b6f0c4b | 371 | (struct usb_dev_state *) udev); |
6080cd0e VM |
372 | if (rc) { |
373 | dev_dbg(&udev->dev, "unable to claim port\n"); | |
3ff67445 | 374 | goto err_port; |
6080cd0e VM |
375 | } |
376 | ||
3ff67445 AK |
377 | rc = stub_add_files(&udev->dev); |
378 | if (rc) { | |
b7945b77 | 379 | dev_err(&udev->dev, "stub_add_files for %s\n", udev_busid); |
3ff67445 | 380 | goto err_files; |
4d7b5c7f | 381 | } |
aa5873e9 | 382 | busid_priv->status = STUB_BUSID_ALLOC; |
4d7b5c7f TH |
383 | |
384 | return 0; | |
3ff67445 AK |
385 | err_files: |
386 | usb_hub_release_port(udev->parent, udev->portnum, | |
387 | (struct usb_dev_state *) udev); | |
388 | err_port: | |
389 | dev_set_drvdata(&udev->dev, NULL); | |
390 | usb_put_dev(udev); | |
391 | kthread_stop_put(sdev->ud.eh); | |
392 | ||
393 | busid_priv->sdev = NULL; | |
394 | stub_device_free(sdev); | |
395 | return rc; | |
4d7b5c7f TH |
396 | } |
397 | ||
aa5873e9 EK |
398 | static void shutdown_busid(struct bus_id_priv *busid_priv) |
399 | { | |
400 | if (busid_priv->sdev && !busid_priv->shutdown_busid) { | |
401 | busid_priv->shutdown_busid = 1; | |
402 | usbip_event_add(&busid_priv->sdev->ud, SDEV_EVENT_REMOVED); | |
403 | ||
77178807 | 404 | /* wait for the stop of the event handler */ |
aa5873e9 EK |
405 | usbip_stop_eh(&busid_priv->sdev->ud); |
406 | } | |
aa5873e9 EK |
407 | } |
408 | ||
4d7b5c7f TH |
409 | /* |
410 | * called in usb_disconnect() or usb_deregister() | |
411 | * but only if actconfig(active configuration) exists | |
412 | */ | |
b7945b77 | 413 | static void stub_disconnect(struct usb_device *udev) |
4d7b5c7f | 414 | { |
aa5873e9 | 415 | struct stub_device *sdev; |
b7945b77 | 416 | const char *udev_busid = dev_name(&udev->dev); |
aa5873e9 | 417 | struct bus_id_priv *busid_priv; |
6080cd0e | 418 | int rc; |
aa5873e9 | 419 | |
b7945b77 | 420 | dev_dbg(&udev->dev, "Enter\n"); |
4d7b5c7f | 421 | |
1a4b6f66 | 422 | busid_priv = get_busid_priv(udev_busid); |
aa5873e9 EK |
423 | if (!busid_priv) { |
424 | BUG(); | |
425 | return; | |
426 | } | |
427 | ||
b7945b77 | 428 | sdev = dev_get_drvdata(&udev->dev); |
aa5873e9 | 429 | |
4d7b5c7f TH |
430 | /* get stub_device */ |
431 | if (!sdev) { | |
b7945b77 | 432 | dev_err(&udev->dev, "could not get device"); |
4d7b5c7f TH |
433 | return; |
434 | } | |
435 | ||
b7945b77 | 436 | dev_set_drvdata(&udev->dev, NULL); |
4d7b5c7f | 437 | |
4d7b5c7f | 438 | /* |
c7f00899 | 439 | * NOTE: rx/tx threads are invoked for each usb_device. |
4d7b5c7f | 440 | */ |
b7945b77 | 441 | stub_remove_files(&udev->dev); |
4d7b5c7f | 442 | |
6080cd0e VM |
443 | /* release port */ |
444 | rc = usb_hub_release_port(udev->parent, udev->portnum, | |
9b6f0c4b | 445 | (struct usb_dev_state *) udev); |
6080cd0e VM |
446 | if (rc) { |
447 | dev_dbg(&udev->dev, "unable to release port\n"); | |
448 | return; | |
449 | } | |
450 | ||
c7f00899 | 451 | /* If usb reset is called from event handler */ |
b7945b77 | 452 | if (busid_priv->sdev->ud.eh == current) |
aa5873e9 | 453 | return; |
4d7b5c7f | 454 | |
c7f00899 | 455 | /* shutdown the current connection */ |
aa5873e9 | 456 | shutdown_busid(busid_priv); |
4d7b5c7f | 457 | |
2d8f4595 | 458 | usb_put_dev(sdev->udev); |
2d8f4595 | 459 | |
c7f00899 | 460 | /* free sdev */ |
aa5873e9 | 461 | busid_priv->sdev = NULL; |
4d7b5c7f TH |
462 | stub_device_free(sdev); |
463 | ||
aa5873e9 EK |
464 | if (busid_priv->status == STUB_BUSID_ALLOC) { |
465 | busid_priv->status = STUB_BUSID_ADDED; | |
466 | } else { | |
467 | busid_priv->status = STUB_BUSID_OTHER; | |
468 | del_match_busid((char *)udev_busid); | |
469 | } | |
4d7b5c7f | 470 | } |
d012c2a5 | 471 | |
b7945b77 | 472 | #ifdef CONFIG_PM |
553a1a50 | 473 | |
b7945b77 VM |
474 | /* These functions need usb_port_suspend and usb_port_resume, |
475 | * which reside in drivers/usb/core/usb.h. Skip for now. */ | |
476 | ||
477 | static int stub_suspend(struct usb_device *udev, pm_message_t message) | |
1aee199c | 478 | { |
b7945b77 VM |
479 | dev_dbg(&udev->dev, "stub_suspend\n"); |
480 | ||
1aee199c AM |
481 | return 0; |
482 | } | |
483 | ||
b7945b77 | 484 | static int stub_resume(struct usb_device *udev, pm_message_t message) |
1aee199c | 485 | { |
b7945b77 VM |
486 | dev_dbg(&udev->dev, "stub_resume\n"); |
487 | ||
1aee199c AM |
488 | return 0; |
489 | } | |
490 | ||
b7945b77 VM |
491 | #endif /* CONFIG_PM */ |
492 | ||
493 | struct usb_device_driver stub_driver = { | |
d012c2a5 | 494 | .name = "usbip-host", |
495 | .probe = stub_probe, | |
496 | .disconnect = stub_disconnect, | |
b7945b77 VM |
497 | #ifdef CONFIG_PM |
498 | .suspend = stub_suspend, | |
499 | .resume = stub_resume, | |
500 | #endif | |
501 | .supports_autosuspend = 0, | |
97c451ca | 502 | }; |