xref: /freebsd/sys/dev/usb/net/usb_ethernet.c (revision e5d258c9e599d2b2fe642e678091cac5da8a10d1) 
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2009 Andrew Thompson (thompsa@FreeBSD.org)
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  */
27 
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
30 
31 #include <sys/param.h>
32 #include <sys/systm.h>
33 #include <sys/bus.h>
34 #include <sys/condvar.h>
35 #include <sys/kernel.h>
36 #include <sys/lock.h>
37 #include <sys/malloc.h>
38 #include <sys/mbuf.h>
39 #include <sys/module.h>
40 #include <sys/mutex.h>
41 #include <sys/socket.h>
42 #include <sys/sockio.h>
43 #include <sys/sysctl.h>
44 #include <sys/sx.h>
45 
46 #include <net/if.h>
47 #include <net/if_var.h>
48 #include <net/ethernet.h>
49 #include <net/if_types.h>
50 #include <net/if_media.h>
51 #include <net/if_vlan_var.h>
52 
53 #include <dev/mii/mii.h>
54 #include <dev/mii/miivar.h>
55 
56 #include <dev/usb/usb.h>
57 #include <dev/usb/usbdi.h>
58 
59 #include <dev/usb/usb_process.h>
60 #include <dev/usb/net/usb_ethernet.h>
61 
62 static SYSCTL_NODE(_net, OID_AUTO, ue, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
63     "USB Ethernet parameters");
64 
65 #define	UE_LOCK(_ue)		mtx_lock((_ue)->ue_mtx)
66 #define	UE_UNLOCK(_ue)		mtx_unlock((_ue)->ue_mtx)
67 #define	UE_LOCK_ASSERT(_ue, t)	mtx_assert((_ue)->ue_mtx, t)
68 
69 MODULE_DEPEND(uether, usb, 1, 1, 1);
70 MODULE_DEPEND(uether, miibus, 1, 1, 1);
71 
72 static struct unrhdr *ueunit;
73 
74 static usb_proc_callback_t ue_attach_post_task;
75 static usb_proc_callback_t ue_promisc_task;
76 static usb_proc_callback_t ue_setmulti_task;
77 static usb_proc_callback_t ue_ifmedia_task;
78 static usb_proc_callback_t ue_tick_task;
79 static usb_proc_callback_t ue_start_task;
80 static usb_proc_callback_t ue_stop_task;
81 
82 static void	ue_init(void *);
83 static void	ue_start(if_t);
84 static int	ue_ifmedia_upd(if_t);
85 static void	ue_watchdog(void *);
86 
87 /*
88  * Return values:
89  *    0: success
90  * Else: device has been detached
91  */
92 uint8_t
93 uether_pause(struct usb_ether *ue, unsigned _ticks)
94 {
95 	if (usb_proc_is_gone(&ue->ue_tq)) {
96 		/* nothing to do */
97 		return (1);
98 	}
99 	usb_pause_mtx(ue->ue_mtx, _ticks);
100 	return (0);
101 }
102 
103 static void
104 ue_queue_command(struct usb_ether *ue,
105     usb_proc_callback_t *fn,
106     struct usb_proc_msg *t0, struct usb_proc_msg *t1)
107 {
108 	struct usb_ether_cfg_task *task;
109 
110 	UE_LOCK_ASSERT(ue, MA_OWNED);
111 
112 	if (usb_proc_is_gone(&ue->ue_tq)) {
113 		return;         /* nothing to do */
114 	}
115 	/*
116 	 * NOTE: The task cannot get executed before we drop the
117 	 * "sc_mtx" mutex. It is safe to update fields in the message
118 	 * structure after that the message got queued.
119 	 */
120 	task = (struct usb_ether_cfg_task *)
121 	  usb_proc_msignal(&ue->ue_tq, t0, t1);
122 
123 	/* Setup callback and self pointers */
124 	task->hdr.pm_callback = fn;
125 	task->ue = ue;
126 
127 	/*
128 	 * Start and stop must be synchronous!
129 	 */
130 	if ((fn == ue_start_task) || (fn == ue_stop_task))
131 		usb_proc_mwait(&ue->ue_tq, t0, t1);
132 }
133 
134 if_t
135 uether_getifp(struct usb_ether *ue)
136 {
137 	return (ue->ue_ifp);
138 }
139 
140 struct mii_data *
141 uether_getmii(struct usb_ether *ue)
142 {
143 	return (device_get_softc(ue->ue_miibus));
144 }
145 
146 void *
147 uether_getsc(struct usb_ether *ue)
148 {
149 	return (ue->ue_sc);
150 }
151 
152 static int
153 ue_sysctl_parent(SYSCTL_HANDLER_ARGS)
154 {
155 	struct usb_ether *ue = arg1;
156 	const char *name;
157 
158 	name = device_get_nameunit(ue->ue_dev);
159 	return SYSCTL_OUT_STR(req, name);
160 }
161 
162 int
163 uether_ifattach(struct usb_ether *ue)
164 {
165 	int error;
166 
167 	/* check some critical parameters */
168 	if ((ue->ue_dev == NULL) ||
169 	    (ue->ue_udev == NULL) ||
170 	    (ue->ue_mtx == NULL) ||
171 	    (ue->ue_methods == NULL))
172 		return (EINVAL);
173 
174 	error = usb_proc_create(&ue->ue_tq, ue->ue_mtx,
175 	    device_get_nameunit(ue->ue_dev), USB_PRI_MED);
176 	if (error) {
177 		device_printf(ue->ue_dev, "could not setup taskqueue\n");
178 		goto error;
179 	}
180 
181 	/* fork rest of the attach code */
182 	UE_LOCK(ue);
183 	ue_queue_command(ue, ue_attach_post_task,
184 	    &ue->ue_sync_task[0].hdr,
185 	    &ue->ue_sync_task[1].hdr);
186 	UE_UNLOCK(ue);
187 
188 error:
189 	return (error);
190 }
191 
192 void
193 uether_ifattach_wait(struct usb_ether *ue)
194 {
195 
196 	UE_LOCK(ue);
197 	usb_proc_mwait(&ue->ue_tq,
198 	    &ue->ue_sync_task[0].hdr,
199 	    &ue->ue_sync_task[1].hdr);
200 	UE_UNLOCK(ue);
201 }
202 
203 static void
204 ue_attach_post_task(struct usb_proc_msg *_task)
205 {
206 	struct usb_ether_cfg_task *task =
207 	    (struct usb_ether_cfg_task *)_task;
208 	struct usb_ether *ue = task->ue;
209 	if_t ifp;
210 	int error;
211 	char num[14];			/* sufficient for 32 bits */
212 
213 	/* first call driver's post attach routine */
214 	ue->ue_methods->ue_attach_post(ue);
215 
216 	UE_UNLOCK(ue);
217 
218 	ue->ue_unit = alloc_unr(ueunit);
219 	usb_callout_init_mtx(&ue->ue_watchdog, ue->ue_mtx, 0);
220 	sysctl_ctx_init(&ue->ue_sysctl_ctx);
221 	mbufq_init(&ue->ue_rxq, 0 /* unlimited length */);
222 
223 	error = 0;
224 	CURVNET_SET_QUIET(vnet0);
225 	ifp = if_alloc(IFT_ETHER);
226 	if (ifp == NULL) {
227 		device_printf(ue->ue_dev, "could not allocate ifnet\n");
228 		goto fail;
229 	}
230 
231 	if_setsoftc(ifp, ue);
232 	if_initname(ifp, "ue", ue->ue_unit);
233 	if (ue->ue_methods->ue_attach_post_sub != NULL) {
234 		ue->ue_ifp = ifp;
235 		error = ue->ue_methods->ue_attach_post_sub(ue);
236 	} else {
237 		if_setflags(ifp, IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST);
238 		if (ue->ue_methods->ue_ioctl != NULL)
239 			if_setioctlfn(ifp, ue->ue_methods->ue_ioctl);
240 		else
241 			if_setioctlfn(ifp, uether_ioctl);
242 		if_setstartfn(ifp, ue_start);
243 		if_setinitfn(ifp, ue_init);
244 		if_setsendqlen(ifp, ifqmaxlen);
245 		if_setsendqready(ifp);
246 		ue->ue_ifp = ifp;
247 
248 		if (ue->ue_methods->ue_mii_upd != NULL &&
249 		    ue->ue_methods->ue_mii_sts != NULL) {
250 			bus_topo_lock();
251 			error = mii_attach(ue->ue_dev, &ue->ue_miibus, ifp,
252 			    ue_ifmedia_upd, ue->ue_methods->ue_mii_sts,
253 			    BMSR_DEFCAPMASK, MII_PHY_ANY, MII_OFFSET_ANY, 0);
254 			bus_topo_unlock();
255 		}
256 	}
257 
258 	if (error) {
259 		device_printf(ue->ue_dev, "attaching PHYs failed\n");
260 		goto fail;
261 	}
262 
263 	if_printf(ifp, "<USB Ethernet> on %s\n", device_get_nameunit(ue->ue_dev));
264 	ether_ifattach(ifp, ue->ue_eaddr);
265 	/* Tell upper layer we support VLAN oversized frames. */
266 	if (if_getcapabilities(ifp) & IFCAP_VLAN_MTU)
267 		if_setifheaderlen(ifp, sizeof(struct ether_vlan_header));
268 
269 	CURVNET_RESTORE();
270 
271 	snprintf(num, sizeof(num), "%u", ue->ue_unit);
272 	ue->ue_sysctl_oid = SYSCTL_ADD_NODE(&ue->ue_sysctl_ctx,
273 	    &SYSCTL_NODE_CHILDREN(_net, ue),
274 	    OID_AUTO, num, CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "");
275 	SYSCTL_ADD_PROC(&ue->ue_sysctl_ctx,
276 	    SYSCTL_CHILDREN(ue->ue_sysctl_oid), OID_AUTO, "%parent",
277 	    CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, ue, 0,
278 	    ue_sysctl_parent, "A", "parent device");
279 
280 	UE_LOCK(ue);
281 	return;
282 
283 fail:
284 	CURVNET_RESTORE();
285 
286 	/* drain mbuf queue */
287 	mbufq_drain(&ue->ue_rxq);
288 
289 	/* free unit */
290 	free_unr(ueunit, ue->ue_unit);
291 	if (ue->ue_ifp != NULL) {
292 		if_free(ue->ue_ifp);
293 		ue->ue_ifp = NULL;
294 	}
295 	UE_LOCK(ue);
296 	return;
297 }
298 
299 void
300 uether_ifdetach(struct usb_ether *ue)
301 {
302 	if_t ifp;
303 
304 	/* wait for any post attach or other command to complete */
305 	usb_proc_drain(&ue->ue_tq);
306 
307 	/* read "ifnet" pointer after taskqueue drain */
308 	ifp = ue->ue_ifp;
309 
310 	if (ifp != NULL) {
311 		/* we are not running any more */
312 		UE_LOCK(ue);
313 		if_setdrvflagbits(ifp, 0, IFF_DRV_RUNNING);
314 		UE_UNLOCK(ue);
315 
316 		/* drain any callouts */
317 		usb_callout_drain(&ue->ue_watchdog);
318 
319 		/*
320 		 * Detach ethernet first to stop miibus calls from
321 		 * user-space:
322 		 */
323 		ether_ifdetach(ifp);
324 
325 		/* detach miibus */
326 		if (ue->ue_miibus != NULL) {
327 			bus_topo_lock();
328 			device_delete_child(ue->ue_dev, ue->ue_miibus);
329 			bus_topo_unlock();
330 		}
331 
332 		/* free interface instance */
333 		if_free(ifp);
334 
335 		/* free sysctl */
336 		sysctl_ctx_free(&ue->ue_sysctl_ctx);
337 
338 		/* drain mbuf queue */
339 		mbufq_drain(&ue->ue_rxq);
340 
341 		/* free unit */
342 		free_unr(ueunit, ue->ue_unit);
343 	}
344 
345 	/* free taskqueue, if any */
346 	usb_proc_free(&ue->ue_tq);
347 }
348 
349 uint8_t
350 uether_is_gone(struct usb_ether *ue)
351 {
352 	return (usb_proc_is_gone(&ue->ue_tq));
353 }
354 
355 void
356 uether_init(void *arg)
357 {
358 
359 	ue_init(arg);
360 }
361 
362 static void
363 ue_init(void *arg)
364 {
365 	struct usb_ether *ue = arg;
366 
367 	UE_LOCK(ue);
368 	ue_queue_command(ue, ue_start_task,
369 	    &ue->ue_sync_task[0].hdr,
370 	    &ue->ue_sync_task[1].hdr);
371 	UE_UNLOCK(ue);
372 }
373 
374 static void
375 ue_start_task(struct usb_proc_msg *_task)
376 {
377 	struct usb_ether_cfg_task *task =
378 	    (struct usb_ether_cfg_task *)_task;
379 	struct usb_ether *ue = task->ue;
380 	if_t ifp = ue->ue_ifp;
381 
382 	UE_LOCK_ASSERT(ue, MA_OWNED);
383 
384 	ue->ue_methods->ue_init(ue);
385 
386 	if ((if_getdrvflags(ifp) & IFF_DRV_RUNNING) == 0)
387 		return;
388 
389 	if (ue->ue_methods->ue_tick != NULL)
390 		usb_callout_reset(&ue->ue_watchdog, hz, ue_watchdog, ue);
391 }
392 
393 static void
394 ue_stop_task(struct usb_proc_msg *_task)
395 {
396 	struct usb_ether_cfg_task *task =
397 	    (struct usb_ether_cfg_task *)_task;
398 	struct usb_ether *ue = task->ue;
399 
400 	UE_LOCK_ASSERT(ue, MA_OWNED);
401 
402 	usb_callout_stop(&ue->ue_watchdog);
403 
404 	ue->ue_methods->ue_stop(ue);
405 }
406 
407 void
408 uether_start(if_t ifp)
409 {
410 
411 	ue_start(ifp);
412 }
413 
414 static void
415 ue_start(if_t ifp)
416 {
417 	struct usb_ether *ue = if_getsoftc(ifp);
418 
419 	if ((if_getdrvflags(ifp) & IFF_DRV_RUNNING) == 0)
420 		return;
421 
422 	UE_LOCK(ue);
423 	ue->ue_methods->ue_start(ue);
424 	UE_UNLOCK(ue);
425 }
426 
427 static void
428 ue_promisc_task(struct usb_proc_msg *_task)
429 {
430 	struct usb_ether_cfg_task *task =
431 	    (struct usb_ether_cfg_task *)_task;
432 	struct usb_ether *ue = task->ue;
433 
434 	ue->ue_methods->ue_setpromisc(ue);
435 }
436 
437 static void
438 ue_setmulti_task(struct usb_proc_msg *_task)
439 {
440 	struct usb_ether_cfg_task *task =
441 	    (struct usb_ether_cfg_task *)_task;
442 	struct usb_ether *ue = task->ue;
443 
444 	ue->ue_methods->ue_setmulti(ue);
445 }
446 
447 int
448 uether_ifmedia_upd(if_t ifp)
449 {
450 
451 	return (ue_ifmedia_upd(ifp));
452 }
453 
454 static int
455 ue_ifmedia_upd(if_t ifp)
456 {
457 	struct usb_ether *ue = if_getsoftc(ifp);
458 
459 	/* Defer to process context */
460 	UE_LOCK(ue);
461 	ue_queue_command(ue, ue_ifmedia_task,
462 	    &ue->ue_media_task[0].hdr,
463 	    &ue->ue_media_task[1].hdr);
464 	UE_UNLOCK(ue);
465 
466 	return (0);
467 }
468 
469 static void
470 ue_ifmedia_task(struct usb_proc_msg *_task)
471 {
472 	struct usb_ether_cfg_task *task =
473 	    (struct usb_ether_cfg_task *)_task;
474 	struct usb_ether *ue = task->ue;
475 	if_t ifp = ue->ue_ifp;
476 
477 	ue->ue_methods->ue_mii_upd(ifp);
478 }
479 
480 static void
481 ue_watchdog(void *arg)
482 {
483 	struct usb_ether *ue = arg;
484 	if_t ifp = ue->ue_ifp;
485 
486 	if ((if_getdrvflags(ifp) & IFF_DRV_RUNNING) == 0)
487 		return;
488 
489 	ue_queue_command(ue, ue_tick_task,
490 	    &ue->ue_tick_task[0].hdr,
491 	    &ue->ue_tick_task[1].hdr);
492 
493 	usb_callout_reset(&ue->ue_watchdog, hz, ue_watchdog, ue);
494 }
495 
496 static void
497 ue_tick_task(struct usb_proc_msg *_task)
498 {
499 	struct usb_ether_cfg_task *task =
500 	    (struct usb_ether_cfg_task *)_task;
501 	struct usb_ether *ue = task->ue;
502 	if_t ifp = ue->ue_ifp;
503 
504 	if ((if_getdrvflags(ifp) & IFF_DRV_RUNNING) == 0)
505 		return;
506 
507 	ue->ue_methods->ue_tick(ue);
508 }
509 
510 int
511 uether_ioctl(if_t ifp, u_long command, caddr_t data)
512 {
513 	struct usb_ether *ue = if_getsoftc(ifp);
514 	struct ifreq *ifr = (struct ifreq *)data;
515 	struct mii_data *mii;
516 	int error = 0;
517 
518 	switch (command) {
519 	case SIOCSIFFLAGS:
520 		UE_LOCK(ue);
521 		if (if_getflags(ifp) & IFF_UP) {
522 			if (if_getdrvflags(ifp) & IFF_DRV_RUNNING)
523 				ue_queue_command(ue, ue_promisc_task,
524 				    &ue->ue_promisc_task[0].hdr,
525 				    &ue->ue_promisc_task[1].hdr);
526 			else
527 				ue_queue_command(ue, ue_start_task,
528 				    &ue->ue_sync_task[0].hdr,
529 				    &ue->ue_sync_task[1].hdr);
530 		} else {
531 			ue_queue_command(ue, ue_stop_task,
532 			    &ue->ue_sync_task[0].hdr,
533 			    &ue->ue_sync_task[1].hdr);
534 		}
535 		UE_UNLOCK(ue);
536 		break;
537 	case SIOCADDMULTI:
538 	case SIOCDELMULTI:
539 		UE_LOCK(ue);
540 		ue_queue_command(ue, ue_setmulti_task,
541 		    &ue->ue_multi_task[0].hdr,
542 		    &ue->ue_multi_task[1].hdr);
543 		UE_UNLOCK(ue);
544 		break;
545 	case SIOCGIFMEDIA:
546 	case SIOCSIFMEDIA:
547 		if (ue->ue_miibus != NULL) {
548 			mii = device_get_softc(ue->ue_miibus);
549 			error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command);
550 		} else
551 			error = ether_ioctl(ifp, command, data);
552 		break;
553 	default:
554 		error = ether_ioctl(ifp, command, data);
555 		break;
556 	}
557 	return (error);
558 }
559 
560 static int
561 uether_modevent(module_t mod, int type, void *data)
562 {
563 
564 	switch (type) {
565 	case MOD_LOAD:
566 		ueunit = new_unrhdr(0, INT_MAX, NULL);
567 		break;
568 	case MOD_UNLOAD:
569 		break;
570 	default:
571 		return (EOPNOTSUPP);
572 	}
573 	return (0);
574 }
575 static moduledata_t uether_mod = {
576 	"uether",
577 	uether_modevent,
578 	0
579 };
580 
581 struct mbuf *
582 uether_newbuf(void)
583 {
584 	struct mbuf *m_new;
585 
586 	m_new = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
587 	if (m_new == NULL)
588 		return (NULL);
589 	m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
590 
591 	m_adj(m_new, ETHER_ALIGN);
592 	return (m_new);
593 }
594 
595 int
596 uether_rxmbuf(struct usb_ether *ue, struct mbuf *m,
597     unsigned len)
598 {
599 	if_t ifp = ue->ue_ifp;
600 
601 	UE_LOCK_ASSERT(ue, MA_OWNED);
602 
603 	/* finalize mbuf */
604 	if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1);
605 	m->m_pkthdr.rcvif = ifp;
606 	m->m_pkthdr.len = m->m_len = len;
607 
608 	/* enqueue for later when the lock can be released */
609 	(void)mbufq_enqueue(&ue->ue_rxq, m);
610 	return (0);
611 }
612 
613 int
614 uether_rxbuf(struct usb_ether *ue, struct usb_page_cache *pc,
615     unsigned offset, unsigned len)
616 {
617 	if_t ifp = ue->ue_ifp;
618 	struct mbuf *m;
619 
620 	UE_LOCK_ASSERT(ue, MA_OWNED);
621 
622 	if (len < ETHER_HDR_LEN || len > MCLBYTES - ETHER_ALIGN)
623 		return (1);
624 
625 	m = uether_newbuf();
626 	if (m == NULL) {
627 		if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1);
628 		return (ENOMEM);
629 	}
630 
631 	usbd_copy_out(pc, offset, mtod(m, uint8_t *), len);
632 
633 	/* finalize mbuf */
634 	if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1);
635 	m->m_pkthdr.rcvif = ifp;
636 	m->m_pkthdr.len = m->m_len = len;
637 
638 	/* enqueue for later when the lock can be released */
639 	(void)mbufq_enqueue(&ue->ue_rxq, m);
640 	return (0);
641 }
642 
643 void
644 uether_rxflush(struct usb_ether *ue)
645 {
646 	if_t ifp = ue->ue_ifp;
647 	struct epoch_tracker et;
648 	struct mbuf *m, *n;
649 
650 	UE_LOCK_ASSERT(ue, MA_OWNED);
651 
652 	n = mbufq_flush(&ue->ue_rxq);
653 	UE_UNLOCK(ue);
654 	NET_EPOCH_ENTER(et);
655 	while ((m = n) != NULL) {
656 		n = STAILQ_NEXT(m, m_stailqpkt);
657 		m->m_nextpkt = NULL;
658 		if_input(ifp, m);
659 	}
660 	NET_EPOCH_EXIT(et);
661 	UE_LOCK(ue);
662 }
663 
664 /*
665  * USB net drivers are run by DRIVER_MODULE() thus SI_SUB_DRIVERS,
666  * SI_ORDER_MIDDLE.  Run uether after that.
667  */
668 DECLARE_MODULE(uether, uether_mod, SI_SUB_DRIVERS, SI_ORDER_ANY);
669 MODULE_VERSION(uether, 1);
670