USBProxyDevice.cpp@ 59738

Last change on this file since 59738 was 59704, checked in by vboxsync, 9 years ago
VUSB: Some structural cleanup (#3 Make the VUSB URB specific data private to the VUSB stack, some interface changes required for XHCI because it previously required access to some VUsb members)
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1	/* $Id: USBProxyDevice.cpp 59704 2016-02-16 14:13:25Z vboxsync $ */
2	/** @file
3	* USBProxy - USB device proxy.
4	*/
5
6	/*
7	* Copyright (C) 2006-2015 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*********************************************************************************************************************************
20	* Header Files *
21	*********************************************************************************************************************************/
22	#define LOG_GROUP LOG_GROUP_DRV_USBPROXY
23	#include <VBox/usb.h>
24	#include <VBox/usbfilter.h>
25	#include <VBox/vmm/pdm.h>
26	#include <VBox/err.h>
27	#include <iprt/alloc.h>
28	#include <iprt/string.h>
29	#include <VBox/log.h>
30	#include <iprt/assert.h>
31	#include "USBProxyDevice.h"
32	#include "VUSBInternal.h"
33	#include "VBoxDD.h"
34
35
36	/*********************************************************************************************************************************
37	* Global Variables *
38	*********************************************************************************************************************************/
39	/** A dummy name used early during the construction phase to avoid log crashes. */
40	static char g_szDummyName[] = "proxy xxxx:yyyy";
41
42	/**
43	* Array of supported proxy backends.
44	*/
45	static PCUSBPROXYBACK g_aUsbProxies[] =
46	{
47	&g_USBProxyDeviceHost,
48	&g_USBProxyDeviceVRDP,
49	&g_USBProxyDeviceUsbIp
50	};
51
52	/* Synchronously obtain a standard USB descriptor for a device, used in order
53	* to grab configuration descriptors when we first add the device
54	*/
55	static void *GetStdDescSync(PUSBPROXYDEV pProxyDev, uint8_t iDescType, uint8_t iIdx, uint16_t LangId, uint16_t cbHint)
56	{
57	#define VUSBSTATUS_DNR_RETRIES 5
58	int cRetries = 0;
59
60	LogFlow(("GetStdDescSync: pProxyDev=%s\n", pProxyDev->pUsbIns->pszName));
61	for (;;)
62	{
63	/*
64	* Setup a MSG URB, queue and reap it.
65	*/
66	int rc = VINF_SUCCESS;
67	VUSBURB Urb;
68	AssertCompile(RT_SIZEOFMEMB(VUSBURB, abData) >= _4K);
69	Urb.u32Magic = VUSBURB_MAGIC;
70	Urb.enmState = VUSBURBSTATE_IN_FLIGHT;
71	Urb.pszDesc = (char*)"URB sync";
72	Urb.pHci = NULL;
73	Urb.paTds = NULL;
74	Urb.Dev.pvPrivate = NULL;
75	Urb.Dev.pNext = NULL;
76	Urb.DstAddress = 0;
77	Urb.EndPt = 0;
78	Urb.enmType = VUSBXFERTYPE_MSG;
79	Urb.enmDir = VUSBDIRECTION_IN;
80	Urb.fShortNotOk = false;
81	Urb.enmStatus = VUSBSTATUS_INVALID;
82	Urb.pVUsb = NULL;
83	cbHint = RT_MIN(cbHint, sizeof(Urb.abData) - sizeof(VUSBSETUP));
84	Urb.cbData = cbHint + sizeof(VUSBSETUP);
85
86	PVUSBSETUP pSetup = (PVUSBSETUP)Urb.abData;
87	pSetup->bmRequestType = VUSB_DIR_TO_HOST \| VUSB_REQ_STANDARD \| VUSB_TO_DEVICE;
88	pSetup->bRequest = VUSB_REQ_GET_DESCRIPTOR;
89	pSetup->wValue = (iDescType << 8) \| iIdx;
90	pSetup->wIndex = LangId;
91	pSetup->wLength = cbHint;
92
93	rc = pProxyDev->pOps->pfnUrbQueue(pProxyDev, &Urb);
94	if (RT_FAILURE(rc))
95	break;
96
97	/* Don't wait forever, it's just a simple request that should
98	return immediately. Since we're executing in the EMT thread
99	it's important not to get stuck here. (Some of the builtin
100	iMac devices may not refuse respond for instance.) */
101	PVUSBURB pUrbReaped = pProxyDev->pOps->pfnUrbReap(pProxyDev, 10000 /* ms */);
102	if (!pUrbReaped)
103	{
104	rc = pProxyDev->pOps->pfnUrbCancel(pProxyDev, &Urb);
105	AssertRC(rc);
106	/** @todo: This breaks the comment above... */
107	pUrbReaped = pProxyDev->pOps->pfnUrbReap(pProxyDev, RT_INDEFINITE_WAIT);
108	}
109	if (pUrbReaped != &Urb)
110	{
111	Log(("GetStdDescSync: pfnUrbReap failed, pUrbReaped=%p\n", pUrbReaped));
112	break;
113	}
114
115	if (Urb.enmStatus != VUSBSTATUS_OK)
116	{
117	Log(("GetStdDescSync: Urb.enmStatus=%d\n", Urb.enmStatus));
118
119	if (Urb.enmStatus == VUSBSTATUS_DNR)
120	{
121	cRetries++;
122	if (cRetries < VUSBSTATUS_DNR_RETRIES)
123	{
124	Log(("GetStdDescSync: Retrying %u/%u\n", cRetries, VUSBSTATUS_DNR_RETRIES));
125	continue;
126	}
127	}
128
129	break;
130	}
131
132	/*
133	* Check the length, config descriptors have total_length field
134	*/
135	uint8_t pbDesc = (uint8_t )(pSetup + 1);
136	uint32_t cbDesc;
137	if (iDescType == VUSB_DT_CONFIG)
138	{
139	if (Urb.cbData < sizeof(VUSBSETUP) + 4)
140	{
141	Log(("GetStdDescSync: Urb.cbData=%#x (min 4)\n", Urb.cbData));
142	break;
143	}
144	cbDesc = RT_LE2H_U16(((uint16_t *)pbDesc)[1]);
145	}
146	else
147	{
148	if (Urb.cbData < sizeof(VUSBSETUP) + 1)
149	{
150	Log(("GetStdDescSync: Urb.cbData=%#x (min 1)\n", Urb.cbData));
151	break;
152	}
153	cbDesc = ((uint8_t *)pbDesc)[0];
154	}
155
156	Log(("GetStdDescSync: got Urb.cbData=%u, cbDesc=%u cbHint=%u\n", Urb.cbData, cbDesc, cbHint));
157
158	if ( Urb.cbData == cbHint + sizeof(VUSBSETUP)
159	&& cbDesc > Urb.cbData - sizeof(VUSBSETUP))
160	{
161	cbHint = cbDesc;
162	if (cbHint > sizeof(Urb.abData))
163	{
164	AssertMsgFailed(("cbHint=%u\n", cbHint));
165	break;
166	}
167	continue;
168	}
169	Assert(cbDesc <= Urb.cbData - sizeof(VUSBSETUP));
170	#ifdef LOG_ENABLED
171	vusbUrbTrace(&Urb, "GetStdDescSync", true);
172	#endif
173
174	/*
175	* Fine, we got everything return a heap duplicate of the descriptor.
176	*/
177	return RTMemDup(pbDesc, cbDesc);
178	}
179	return NULL;
180	}
181
182	/**
183	* Frees a descriptor returned by GetStdDescSync().
184	*/
185	static void free_desc(void *pvDesc)
186	{
187	RTMemFree(pvDesc);
188	}
189
190	/**
191	* Get and a device descriptor and byteswap it appropriately.
192	*/
193	static bool usbProxyGetDeviceDesc(PUSBPROXYDEV pProxyDev, PVUSBDESCDEVICE pOut)
194	{
195	/*
196	* Get the descriptor from the device.
197	*/
198	PVUSBDESCDEVICE pIn = (PVUSBDESCDEVICE)GetStdDescSync(pProxyDev, VUSB_DT_DEVICE, 0, 0, VUSB_DT_DEVICE_MIN_LEN);
199	if (!pIn)
200	{
201	Log(("usbProxyGetDeviceDesc: pProxyDev=%s: GetStdDescSync failed\n", pProxyDev->pUsbIns->pszName));
202	return false;
203	}
204	if (pIn->bLength < VUSB_DT_DEVICE_MIN_LEN)
205	{
206	Log(("usb-proxy: pProxyDev=%s: Corrupted device descriptor. bLength=%d\n", pProxyDev->pUsbIns->pszName, pIn->bLength));
207	return false;
208	}
209
210	/*
211	* Convert it.
212	*/
213	pOut->bLength = VUSB_DT_DEVICE_MIN_LEN;
214	pOut->bDescriptorType = VUSB_DT_DEVICE;
215	pOut->bcdUSB = RT_LE2H_U16(pIn->bcdUSB);
216	pOut->bDeviceClass = pIn->bDeviceClass;
217	pOut->bDeviceSubClass = pIn->bDeviceSubClass;
218	pOut->bDeviceProtocol = pIn->bDeviceProtocol;
219	pOut->bMaxPacketSize0 = pIn->bMaxPacketSize0;
220	pOut->idVendor = RT_LE2H_U16(pIn->idVendor);
221	pOut->idProduct = RT_LE2H_U16(pIn->idProduct);
222	pOut->bcdDevice = RT_LE2H_U16(pIn->bcdDevice);
223	pOut->iManufacturer = pIn->iManufacturer;
224	pOut->iProduct = pIn->iProduct;
225	pOut->iSerialNumber = pIn->iSerialNumber;
226	pOut->bNumConfigurations = pIn->bNumConfigurations;
227
228	free_desc(pIn);
229	return true;
230	}
231
232	/**
233	* Count the numbers and types of each kind of descriptor that we need to
234	* copy out of the config descriptor
235	*/
236	struct desc_counts
237	{
238	size_t num_ed, num_id, num_if;
239	/** bitmap (128 bits) */
240	uint32_t idmap[4];
241	};
242
243	static int count_descriptors(struct desc_counts cnt, uint8_t buf, size_t len)
244	{
245	PVUSBDESCCONFIG cfg;
246	uint8_t tmp, end;
247	uint32_t i, x;
248
249	memset(cnt, 0, sizeof(*cnt));
250
251	end = buf + len;
252
253	cfg = (PVUSBDESCCONFIG)buf;
254	if ( cfg->bLength < VUSB_DT_CONFIG_MIN_LEN )
255	return 0;
256	if ( cfg->bLength > len )
257	return 0;
258
259	for (tmp = buf + cfg->bLength; ((tmp + 1) < end) && tmp; tmp += tmp)
260	{
261	uint8_t type;
262	uint32_t ifnum;
263	PVUSBDESCINTERFACE id;
264	PVUSBDESCENDPOINT ed;
265
266	type = *(tmp + 1);
267
268	switch ( type ) {
269	case VUSB_DT_INTERFACE:
270	id = (PVUSBDESCINTERFACE)tmp;
271	if ( id->bLength < VUSB_DT_INTERFACE_MIN_LEN )
272	return 0;
273	cnt->num_id++;
274	ifnum = id->bInterfaceNumber;
275	cnt->idmap[ifnum >> 6] \|= (1 << (ifnum & 0x1f));
276	break;
277	case VUSB_DT_ENDPOINT:
278	ed = (PVUSBDESCENDPOINT)tmp;
279	if ( ed->bLength < VUSB_DT_ENDPOINT_MIN_LEN )
280	return 0;
281	cnt->num_ed++;
282	break;
283	default:
284	break;
285	}
286	}
287
288	/* count interfaces */
289	for(i=0; i < RT_ELEMENTS(cnt->idmap); i++)
290	for(x=1; x; x<<=1)
291	if ( cnt->idmap[i] & x )
292	cnt->num_if++;
293
294	return 1;
295	}
296
297	/* Given the pointer to an interface or endpoint descriptor, find any following
298	* non-standard (vendor or class) descriptors.
299	*/
300	static const void collect_stray_bits(uint8_t this_desc, uint8_t end, uint16_t cbExtra)
301	{
302	uint8_t tmp, buf;
303	uint8_t type;
304
305	Assert((this_desc + 1) == VUSB_DT_INTERFACE \|\| (this_desc + 1) == VUSB_DT_ENDPOINT);
306	buf = this_desc;
307
308	/* Skip the current interface/endpoint descriptor. */
309	buf += (uint8_t )buf;
310
311	/* Loop until we find another descriptor we understand. */
312	for (tmp = buf; ((tmp + 1) < end) && tmp; tmp += tmp)
313	{
314	type = *(tmp + 1);
315	if (type == VUSB_DT_INTERFACE \|\| type == VUSB_DT_ENDPOINT)
316	break;
317	}
318	*cbExtra = tmp - buf;
319	if (*cbExtra)
320	return buf;
321	else
322	return NULL;
323	}
324
325	/* Setup a vusb_interface structure given some preallocated structures
326	* to use, (we counted them already)
327	*/
328	static int copy_interface(PVUSBINTERFACE pIf, uint8_t ifnum,
329	PVUSBDESCINTERFACEEX id, PVUSBDESCENDPOINTEX ed,
330	uint8_t *buf, size_t len)
331	{
332	PVUSBDESCINTERFACEEX cur_if = NULL;
333	uint32_t altmap[4] = {0,};
334	uint8_t tmp, end = buf + len;
335	uint8_t *orig_desc = buf;
336	uint8_t alt;
337	int state;
338	size_t num_ep = 0;
339
340	buf += (uint8_t )buf;
341
342	pIf->cSettings = 0;
343	pIf->paSettings = NULL;
344
345	for (tmp = buf, state = 0; ((tmp + 1) < end) && tmp; tmp += tmp)
346	{
347	uint8_t type;
348	PVUSBDESCINTERFACE ifd;
349	PVUSBDESCENDPOINT epd;
350	PVUSBDESCENDPOINTEX cur_ep;
351
352	type = tmp[1];
353
354	switch ( type ) {
355	case VUSB_DT_INTERFACE:
356	state = 0;
357	ifd = (PVUSBDESCINTERFACE)tmp;
358
359	/* Ignoring this interface */
360	if ( ifd->bInterfaceNumber != ifnum )
361	break;
362
363	/* Check we didn't see this alternate setting already
364	* because that will break stuff
365	*/
366	alt = ifd->bAlternateSetting;
367	if ( altmap[alt >> 6] & (1 << (alt & 0x1f)) )
368	return 0;
369	altmap[alt >> 6] \|= (1 << (alt & 0x1f));
370
371	cur_if = *id;
372	(*id)++;
373	if ( pIf->cSettings == 0 )
374	pIf->paSettings = cur_if;
375
376	memcpy(cur_if, ifd, sizeof(cur_if->Core));
377
378	/* Point to additional interface descriptor bytes, if any. */
379	AssertCompile(sizeof(cur_if->Core) == VUSB_DT_INTERFACE_MIN_LEN);
380	if (cur_if->Core.bLength - VUSB_DT_INTERFACE_MIN_LEN > 0)
381	cur_if->pvMore = tmp + VUSB_DT_INTERFACE_MIN_LEN;
382	else
383	cur_if->pvMore = NULL;
384
385	cur_if->pvClass = collect_stray_bits(tmp, end, &cur_if->cbClass);
386
387	pIf->cSettings++;
388
389	state = 1;
390	num_ep = 0;
391	break;
392	case VUSB_DT_ENDPOINT:
393	if ( state == 0 )
394	break;
395
396	epd = (PVUSBDESCENDPOINT)tmp;
397
398	cur_ep = *ed;
399	(*ed)++;
400
401	if ( num_ep == 0 )
402	cur_if->paEndpoints = cur_ep;
403
404	if ( num_ep > cur_if->Core.bNumEndpoints )
405	return 0;
406
407	memcpy(cur_ep, epd, sizeof(cur_ep->Core));
408
409	/* Point to additional endpoint descriptor bytes, if any. */
410	AssertCompile(sizeof(cur_ep->Core) == VUSB_DT_ENDPOINT_MIN_LEN);
411	if (cur_ep->Core.bLength - VUSB_DT_ENDPOINT_MIN_LEN > 0)
412	cur_ep->pvMore = tmp + VUSB_DT_ENDPOINT_MIN_LEN;
413	else
414	cur_ep->pvMore = NULL;
415
416	cur_ep->pvClass = collect_stray_bits(tmp, end, &cur_ep->cbClass);
417
418	cur_ep->Core.wMaxPacketSize = RT_LE2H_U16(cur_ep->Core.wMaxPacketSize);
419
420	num_ep++;
421	break;
422	default:
423	/* Skip unknown descriptors. */
424	break;
425	}
426	}
427
428	return 1;
429	}
430
431	/**
432	* Copy all of a devices config descriptors, this is needed so that the USB
433	* core layer knows all about how to map the different functions on to the
434	* virtual USB bus.
435	*/
436	static bool copy_config(PUSBPROXYDEV pProxyDev, uint8_t idx, PVUSBDESCCONFIGEX out)
437	{
438	PVUSBDESCCONFIG cfg;
439	PVUSBINTERFACE pIf;
440	PVUSBDESCINTERFACEEX ifd;
441	PVUSBDESCENDPOINTEX epd;
442	struct desc_counts cnt;
443	void *descs;
444	size_t tot_len;
445	size_t cbIface;
446	uint32_t i, x;
447
448	descs = GetStdDescSync(pProxyDev, VUSB_DT_CONFIG, idx, 0, VUSB_DT_CONFIG_MIN_LEN);
449	if ( descs == NULL ) {
450	Log(("copy_config: GetStdDescSync failed\n"));
451	return false;
452	}
453
454	cfg = (PVUSBDESCCONFIG)descs;
455	tot_len = RT_LE2H_U16(cfg->wTotalLength);
456
457	if ( !count_descriptors(&cnt, (uint8_t *)descs, tot_len) ) {
458	Log(("copy_config: count_descriptors failed\n"));
459	goto err;
460	}
461
462	if ( cfg->bNumInterfaces != cnt.num_if )
463	Log(("usb-proxy: config%u: bNumInterfaces %u != %u\n",
464	idx, cfg->bNumInterfaces, cnt.num_if));
465
466	Log(("usb-proxy: config%u: %u bytes id=%u ed=%u if=%u\n",
467	idx, tot_len, cnt.num_id, cnt.num_ed, cnt.num_if));
468
469	cbIface = cnt.num_if * sizeof(VUSBINTERFACE)
470	+ cnt.num_id * sizeof(VUSBDESCINTERFACEEX)
471	+ cnt.num_ed * sizeof(VUSBDESCENDPOINTEX);
472	out->paIfs = (PCVUSBINTERFACE)RTMemAllocZ(cbIface);
473	if ( out->paIfs == NULL ) {
474	free_desc(descs);
475	return false;
476	}
477
478	/* Stash a pointer to the raw config descriptor; we may need bits of it later. */
479	out->pvOriginal = descs;
480
481	pIf = (PVUSBINTERFACE)out->paIfs;
482	ifd = (PVUSBDESCINTERFACEEX)&pIf[cnt.num_if];
483	epd = (PVUSBDESCENDPOINTEX)&ifd[cnt.num_id];
484
485	out->Core.bLength = cfg->bLength;
486	out->Core.bDescriptorType = cfg->bDescriptorType;
487	out->Core.wTotalLength = 0; /* Auto Calculated */
488	out->Core.bNumInterfaces = (uint8_t)cnt.num_if;
489	out->Core.bConfigurationValue = cfg->bConfigurationValue;
490	out->Core.iConfiguration = cfg->iConfiguration;
491	out->Core.bmAttributes = cfg->bmAttributes;
492	out->Core.MaxPower = cfg->MaxPower;
493
494	for(i=0; i < 4; i++)
495	for(x=0; x < 32; x++)
496	if ( cnt.idmap[i] & (1 << x) )
497	if ( !copy_interface(pIf++, (i << 6) \| x, &ifd, &epd, (uint8_t *)out->pvOriginal, tot_len) ) {
498	Log(("copy_interface(%d,,) failed\n", pIf - 1));
499	goto err;
500	}
501
502	return true;
503	err:
504	Log(("usb-proxy: config%u: Corrupted configuration descriptor\n", idx));
505	free_desc(descs);
506	return false;
507	}
508
509
510	/**
511	* Edit out masked interface descriptors.
512	*
513	* @param pProxyDev The proxy device
514	*/
515	static void usbProxyDevEditOutMaskedIfs(PUSBPROXYDEV pProxyDev)
516	{
517	unsigned cRemoved = 0;
518
519	PVUSBDESCCONFIGEX paCfgs = pProxyDev->paCfgDescs;
520	for (unsigned iCfg = 0; iCfg < pProxyDev->DevDesc.bNumConfigurations; iCfg++)
521	{
522	PVUSBINTERFACE paIfs = (PVUSBINTERFACE)paCfgs[iCfg].paIfs;
523	for (unsigned iIf = 0; iIf < paCfgs[iCfg].Core.bNumInterfaces; iIf++)
524	for (uint32_t iAlt = 0; iAlt < paIfs[iIf].cSettings; iAlt++)
525	if ( paIfs[iIf].paSettings[iAlt].Core.bInterfaceNumber < 32
526	&& ((1 << paIfs[iIf].paSettings[iAlt].Core.bInterfaceNumber) & pProxyDev->fMaskedIfs))
527	{
528	Log(("usb-proxy: removing interface #%d (iIf=%d iAlt=%d) on config #%d (iCfg=%d)\n",
529	paIfs[iIf].paSettings[iAlt].Core.bInterfaceNumber, iIf, iAlt, paCfgs[iCfg].Core.bConfigurationValue, iCfg));
530	cRemoved++;
531
532	paCfgs[iCfg].Core.bNumInterfaces--;
533	unsigned cToCopy = paCfgs[iCfg].Core.bNumInterfaces - iIf;
534	if (cToCopy)
535	memmove(&paIfs[iIf], &paIfs[iIf + 1], sizeof(paIfs[0]) * cToCopy);
536	memset(&paIfs[iIf + cToCopy], '\0', sizeof(paIfs[0]));
537	break;
538	}
539	}
540
541	Log(("usb-proxy: edited out %d interface(s).\n", cRemoved));
542	}
543
544
545	/**
546	* @copydoc PDMUSBREG::pfnUsbReset
547	*
548	* USB Device Proxy: Call OS specific code to reset the device.
549	*/
550	static DECLCALLBACK(int) usbProxyDevReset(PPDMUSBINS pUsbIns, bool fResetOnLinux)
551	{
552	PUSBPROXYDEV pProxyDev = PDMINS_2_DATA(pUsbIns, PUSBPROXYDEV);
553
554	if (pProxyDev->fMaskedIfs)
555	{
556	Log(("usbProxyDevReset: pProxyDev=%s - ignoring reset request fMaskedIfs=%#x\n", pUsbIns->pszName, pProxyDev->fMaskedIfs));
557	return VINF_SUCCESS;
558	}
559	LogFlow(("usbProxyDevReset: pProxyDev=%s\n", pUsbIns->pszName));
560	return pProxyDev->pOps->pfnReset(pProxyDev, fResetOnLinux);
561	}
562
563
564	/**
565	* @copydoc PDMUSBREG::pfnUsbGetDescriptorCache
566	*/
567	static DECLCALLBACK(PCPDMUSBDESCCACHE) usbProxyDevGetDescriptorCache(PPDMUSBINS pUsbIns)
568	{
569	PUSBPROXYDEV pThis = PDMINS_2_DATA(pUsbIns, PUSBPROXYDEV);
570	return &pThis->DescCache;
571	}
572
573
574	/**
575	* @copydoc PDMUSBREG::pfnUsbSetConfiguration
576	*
577	* USB Device Proxy: Release claimed interfaces, tell the OS+device about the config change, claim the new interfaces.
578	*/
579	static DECLCALLBACK(int) usbProxyDevSetConfiguration(PPDMUSBINS pUsbIns, uint8_t bConfigurationValue,
580	const void pvOldCfgDesc, const void pvOldIfState, const void *pvNewCfgDesc)
581	{
582	PUSBPROXYDEV pProxyDev = PDMINS_2_DATA(pUsbIns, PUSBPROXYDEV);
583	LogFlow(("usbProxyDevSetConfiguration: pProxyDev=%s iActiveCfg=%d bConfigurationValue=%d\n",
584	pUsbIns->pszName, pProxyDev->iActiveCfg, bConfigurationValue));
585
586	/*
587	* Release the current config.
588	*/
589	if (pvOldCfgDesc)
590	{
591	PCVUSBDESCCONFIGEX pOldCfgDesc = (PCVUSBDESCCONFIGEX)pvOldCfgDesc;
592	PCVUSBINTERFACESTATE pOldIfState = (PCVUSBINTERFACESTATE)pvOldIfState;
593	for (unsigned i = 0; i < pOldCfgDesc->Core.bNumInterfaces; i++)
594	if (pOldIfState[i].pCurIfDesc)
595	pProxyDev->pOps->pfnReleaseInterface(pProxyDev, pOldIfState[i].pCurIfDesc->Core.bInterfaceNumber);
596	}
597
598	/*
599	* Do the actual SET_CONFIGURE.
600	* The mess here is because most backends will already have selected a
601	* configuration and there are a bunch of devices which will freak out
602	* if we do SET_CONFIGURE twice with the same value. (PalmOne, TrekStor USB-StickGO, ..)
603	*
604	* After open and reset the backend should use the members iActiveCfg and cIgnoreSetConfigs
605	* to indicate the new configuration state and what to do on the next SET_CONFIGURATION call.
606	*/
607	if ( pProxyDev->iActiveCfg != bConfigurationValue
608	\|\| ( bConfigurationValue == 0
609	&& pProxyDev->iActiveCfg != -1 /* this test doesn't make sense, we know it's 0 */
610	&& pProxyDev->cIgnoreSetConfigs >= 2)
611	\|\| !pProxyDev->cIgnoreSetConfigs)
612	{
613	pProxyDev->cIgnoreSetConfigs = 0;
614	int rc = pProxyDev->pOps->pfnSetConfig(pProxyDev, bConfigurationValue);
615	if (RT_FAILURE(rc))
616	{
617	pProxyDev->iActiveCfg = -1;
618	return rc;
619	}
620	pProxyDev->iActiveCfg = bConfigurationValue;
621	}
622	else if (pProxyDev->cIgnoreSetConfigs > 0)
623	pProxyDev->cIgnoreSetConfigs--;
624
625	/*
626	* Claim the interfaces.
627	*/
628	PCVUSBDESCCONFIGEX pNewCfgDesc = (PCVUSBDESCCONFIGEX)pvNewCfgDesc;
629	Assert(pNewCfgDesc->Core.bConfigurationValue == bConfigurationValue);
630	for (unsigned iIf = 0; iIf < pNewCfgDesc->Core.bNumInterfaces; iIf++)
631	{
632	PCVUSBINTERFACE pIf = &pNewCfgDesc->paIfs[iIf];
633	for (uint32_t iAlt = 0; iAlt < pIf->cSettings; iAlt++)
634	{
635	if (pIf->paSettings[iAlt].Core.bAlternateSetting != 0)
636	continue;
637	pProxyDev->pOps->pfnClaimInterface(pProxyDev, pIf->paSettings[iAlt].Core.bInterfaceNumber);
638	/* ignore failures - the backend deals with that and does the necessary logging. */
639	break;
640	}
641	}
642
643	return VINF_SUCCESS;
644	}
645
646
647	/**
648	* @copydoc PDMUSBREG::pfnUsbSetInterface
649	*
650	* USB Device Proxy: Call OS specific code to select alternate interface settings.
651	*/
652	static DECLCALLBACK(int) usbProxyDevSetInterface(PPDMUSBINS pUsbIns, uint8_t bInterfaceNumber, uint8_t bAlternateSetting)
653	{
654	PUSBPROXYDEV pProxyDev = PDMINS_2_DATA(pUsbIns, PUSBPROXYDEV);
655	LogFlow(("usbProxyDevSetInterface: pProxyDev=%s bInterfaceNumber=%d bAlternateSetting=%d\n",
656	pUsbIns->pszName, bInterfaceNumber, bAlternateSetting));
657
658	return pProxyDev->pOps->pfnSetInterface(pProxyDev, bInterfaceNumber, bAlternateSetting);
659	}
660
661
662	/**
663	* @copydoc PDMUSBREG::pfnUsbClearHaltedEndpoint
664	*
665	* USB Device Proxy: Call OS specific code to clear the endpoint.
666	*/
667	static DECLCALLBACK(int) usbProxyDevClearHaltedEndpoint(PPDMUSBINS pUsbIns, unsigned uEndpoint)
668	{
669	PUSBPROXYDEV pProxyDev = PDMINS_2_DATA(pUsbIns, PUSBPROXYDEV);
670	LogFlow(("usbProxyDevClearHaltedEndpoint: pProxyDev=%s uEndpoint=%u\n",
671	pUsbIns->pszName, uEndpoint));
672
673	return pProxyDev->pOps->pfnClearHaltedEndpoint(pProxyDev, uEndpoint);
674	}
675
676
677	/**
678	* @copydoc PDMUSBREG::pfnUrbQueue
679	*
680	* USB Device Proxy: Call OS specific code.
681	*/
682	static DECLCALLBACK(int) usbProxyDevUrbQueue(PPDMUSBINS pUsbIns, PVUSBURB pUrb)
683	{
684	int rc = VINF_SUCCESS;
685	PUSBPROXYDEV pProxyDev = PDMINS_2_DATA(pUsbIns, PUSBPROXYDEV);
686	rc = pProxyDev->pOps->pfnUrbQueue(pProxyDev, pUrb);
687	if (RT_FAILURE(rc))
688	return pProxyDev->fDetached
689	? VERR_VUSB_DEVICE_NOT_ATTACHED
690	: VERR_VUSB_FAILED_TO_QUEUE_URB;
691	return rc;
692	}
693
694
695	/**
696	* @copydoc PDMUSBREG::pfnUrbCancel
697	*
698	* USB Device Proxy: Call OS specific code.
699	*/
700	static DECLCALLBACK(int) usbProxyDevUrbCancel(PPDMUSBINS pUsbIns, PVUSBURB pUrb)
701	{
702	PUSBPROXYDEV pProxyDev = PDMINS_2_DATA(pUsbIns, PUSBPROXYDEV);
703	return pProxyDev->pOps->pfnUrbCancel(pProxyDev, pUrb);
704	}
705
706
707	/**
708	* @copydoc PDMUSBREG::pfnUrbReap
709	*
710	* USB Device Proxy: Call OS specific code.
711	*/
712	static DECLCALLBACK(PVUSBURB) usbProxyDevUrbReap(PPDMUSBINS pUsbIns, RTMSINTERVAL cMillies)
713	{
714	PUSBPROXYDEV pProxyDev = PDMINS_2_DATA(pUsbIns, PUSBPROXYDEV);
715	PVUSBURB pUrb = pProxyDev->pOps->pfnUrbReap(pProxyDev, cMillies);
716	if ( pUrb
717	&& pUrb->enmState == VUSBURBSTATE_CANCELLED
718	&& pUrb->enmStatus == VUSBSTATUS_OK)
719	pUrb->enmStatus = VUSBSTATUS_DNR;
720	return pUrb;
721	}
722
723
724	/**
725	* @copydoc PDMUSBREG::pfnWakeup
726	*
727	* USB Device Proxy: Call OS specific code.
728	*/
729	static DECLCALLBACK(int) usbProxyDevWakeup(PPDMUSBINS pUsbIns)
730	{
731	PUSBPROXYDEV pProxyDev = PDMINS_2_DATA(pUsbIns, PUSBPROXYDEV);
732
733	return pProxyDev->pOps->pfnWakeup(pProxyDev);
734	}
735
736
737	/** @copydoc PDMUSBREG::pfnDestruct */
738	static DECLCALLBACK(void) usbProxyDestruct(PPDMUSBINS pUsbIns)
739	{
740	PUSBPROXYDEV pThis = PDMINS_2_DATA(pUsbIns, PUSBPROXYDEV);
741	Log(("usbProxyDestruct: destroying pProxyDev=%s\n", pUsbIns->pszName));
742
743	/* close it. */
744	if (pThis->fOpened)
745	{
746	pThis->pOps->pfnClose(pThis);
747	pThis->fOpened = false;
748	}
749
750	/* free the config descriptors. */
751	if (pThis->paCfgDescs)
752	{
753	for (unsigned i = 0; i < pThis->DevDesc.bNumConfigurations; i++)
754	{
755	RTMemFree((void *)pThis->paCfgDescs[i].paIfs);
756	RTMemFree((void *)pThis->paCfgDescs[i].pvOriginal);
757	}
758	RTMemFree(pThis->paCfgDescs);
759	pThis->paCfgDescs = NULL;
760	}
761
762	/* free dev */
763	if (&g_szDummyName[0] != pUsbIns->pszName)
764	RTStrFree(pUsbIns->pszName);
765	pUsbIns->pszName = NULL;
766
767	if (pThis->pvInstanceDataR3)
768	RTMemFree(pThis->pvInstanceDataR3);
769	}
770
771
772	/**
773	* Helper function used by usbProxyConstruct when
774	* reading a filter from CFG.
775	*
776	* @returns VBox status code.
777	* @param pFilter The filter.
778	* @param enmFieldIdx The filter field indext.
779	* @param pNode The CFGM node.
780	* @param pszExact The exact value name.
781	* @param pszExpr The expression value name.
782	*/
783	static int usbProxyQueryNum(PUSBFILTER pFilter, USBFILTERIDX enmFieldIdx, PCFGMNODE pNode, const char pszExact, const char pszExpr)
784	{
785	char szTmp[256];
786
787	/* try exact first */
788	uint16_t u16;
789	int rc = CFGMR3QueryU16(pNode, pszExact, &u16);
790	if (RT_SUCCESS(rc))
791	{
792	rc = USBFilterSetNumExact(pFilter, enmFieldIdx, u16, true);
793	AssertRCReturn(rc, rc);
794
795	/* make sure only the exact attribute is present. */
796	rc = CFGMR3QueryString(pNode, pszExpr, szTmp, sizeof(szTmp));
797	if (RT_UNLIKELY(rc != VERR_CFGM_VALUE_NOT_FOUND))
798	{
799	szTmp[0] = '\0';
800	CFGMR3GetName(pNode, szTmp, sizeof(szTmp));
801	LogRel(("usbProxyConstruct: %s: Both %s and %s are present!\n", szTmp, pszExact, pszExpr));
802	return VERR_INVALID_PARAMETER;
803	}
804	return VINF_SUCCESS;
805	}
806	if (RT_UNLIKELY(rc != VERR_CFGM_VALUE_NOT_FOUND))
807	{
808	szTmp[0] = '\0';
809	CFGMR3GetName(pNode, szTmp, sizeof(szTmp));
810	LogRel(("usbProxyConstruct: %s: %s query failed, rc=%Rrc\n", szTmp, pszExact, rc));
811	return rc;
812	}
813
814	/* expression? */
815	rc = CFGMR3QueryString(pNode, pszExpr, szTmp, sizeof(szTmp));
816	if (RT_SUCCESS(rc))
817	{
818	rc = USBFilterSetNumExpression(pFilter, enmFieldIdx, szTmp, true);
819	AssertRCReturn(rc, rc);
820	return VINF_SUCCESS;
821	}
822	if (RT_UNLIKELY(rc != VERR_CFGM_VALUE_NOT_FOUND))
823	{
824	szTmp[0] = '\0';
825	CFGMR3GetName(pNode, szTmp, sizeof(szTmp));
826	LogRel(("usbProxyConstruct: %s: %s query failed, rc=%Rrc\n", szTmp, pszExpr, rc));
827	return rc;
828	}
829
830	return VINF_SUCCESS;
831	}
832
833
834	/** @copydoc PDMUSBREG::pfnConstruct */
835	static DECLCALLBACK(int) usbProxyConstruct(PPDMUSBINS pUsbIns, int iInstance, PCFGMNODE pCfg, PCFGMNODE pCfgGlobal)
836	{
837	PUSBPROXYDEV pThis = PDMINS_2_DATA(pUsbIns, PUSBPROXYDEV);
838	LogFlow(("usbProxyConstruct: pUsbIns=%p iInstance=%d\n", pUsbIns, iInstance));
839
840	/*
841	* Initialize the instance data.
842	*/
843	pThis->pUsbIns = pUsbIns;
844	pThis->pUsbIns->pszName = g_szDummyName;
845	pThis->iActiveCfg = -1;
846	pThis->fMaskedIfs = 0;
847	pThis->fOpened = false;
848	pThis->fInited = false;
849
850	/*
851	* Read the basic configuration.
852	*/
853	char szAddress[1024];
854	int rc = CFGMR3QueryString(pCfg, "Address", szAddress, sizeof(szAddress));
855	AssertRCReturn(rc, rc);
856
857	char szBackend[64];
858	rc = CFGMR3QueryString(pCfg, "Backend", szBackend, sizeof(szBackend));
859	AssertRCReturn(rc, rc);
860
861	void *pvBackend;
862	rc = CFGMR3QueryPtr(pCfg, "pvBackend", &pvBackend);
863	AssertRCReturn(rc, rc);
864
865	/*
866	* Select backend and open the device.
867	*/
868	rc = VERR_NOT_FOUND;
869	for (unsigned i = 0; i < RT_ELEMENTS(g_aUsbProxies); i++)
870	{
871	if (!RTStrICmp(szBackend, g_aUsbProxies[i]->pszName))
872	{
873	pThis->pOps = g_aUsbProxies[i];
874	rc = VINF_SUCCESS;
875	break;
876	}
877	}
878	if (RT_FAILURE(rc))
879	return PDMUSB_SET_ERROR(pUsbIns, rc, N_("USBProxy: Failed to find backend"));
880
881	pThis->pvInstanceDataR3 = RTMemAllocZ(pThis->pOps->cbBackend);
882	if (!pThis->pvInstanceDataR3)
883	return PDMUSB_SET_ERROR(pUsbIns, VERR_NO_MEMORY, N_("USBProxy: can't allocate memory for host backend"));
884
885	rc = pThis->pOps->pfnOpen(pThis, szAddress, pvBackend);
886	if (RT_FAILURE(rc))
887	{
888	LogRel(("usbProxyConstruct: Failed to open '%s', rc=%Rrc\n", szAddress, rc));
889	return rc;
890	}
891	pThis->fOpened = true;
892
893	/*
894	* Get the device descriptor and format the device name (for logging).
895	*/
896	if (!usbProxyGetDeviceDesc(pThis, &pThis->DevDesc))
897	{
898	Log(("usbProxyConstruct: usbProxyGetDeviceDesc failed\n"));
899	return VERR_READ_ERROR;
900	}
901
902	RTStrAPrintf(&pUsbIns->pszName, "%p[proxy %04x:%04x]", pThis, pThis->DevDesc.idVendor, pThis->DevDesc.idProduct); /** @todo append the user comment */
903	AssertReturn(pUsbIns->pszName, VERR_NO_MEMORY);
904
905	/*
906	* Get config descriptors.
907	*/
908	size_t cbConfigs = pThis->DevDesc.bNumConfigurations * sizeof(pThis->paCfgDescs[0]);
909	pThis->paCfgDescs = (PVUSBDESCCONFIGEX)RTMemAllocZ(cbConfigs);
910	AssertReturn(pThis->paCfgDescs, VERR_NO_MEMORY);
911
912	unsigned i;
913	for (i = 0; i < pThis->DevDesc.bNumConfigurations; i++)
914	if (!copy_config(pThis, i, (PVUSBDESCCONFIGEX)&pThis->paCfgDescs[i]))
915	break;
916	if (i < pThis->DevDesc.bNumConfigurations)
917	{
918	Log(("usbProxyConstruct: copy_config failed, i=%d\n", i));
919	return VERR_READ_ERROR;
920	}
921
922	/*
923	* Pickup best matching global configuration for this device.
924	* The global configuration is organized like this:
925	*
926	* GlobalConfig/Whatever/
927	* \|- idVendor = 300
928	* \|- idProduct = 300
929	* - Config/
930	*
931	* The first level contains filter attributes which we stuff into a USBFILTER
932	* structure and match against the device info that's available. The highest
933	* ranked match is will be used. If nothing is found, the values will be
934	* queried from the GlobalConfig node (simplifies code and might actually
935	* be useful).
936	*/
937	PCFGMNODE pCfgGlobalDev = pCfgGlobal;
938	PCFGMNODE pCur = CFGMR3GetFirstChild(pCfgGlobal);
939	if (pCur)
940	{
941	/*
942	* Create a device filter from the device configuration
943	* descriptor ++. No strings currently.
944	*/
945	USBFILTER Device;
946	USBFilterInit(&Device, USBFILTERTYPE_CAPTURE);
947	rc = USBFilterSetNumExact(&Device, USBFILTERIDX_VENDOR_ID, pThis->DevDesc.idVendor, true); AssertRC(rc);
948	rc = USBFilterSetNumExact(&Device, USBFILTERIDX_PRODUCT_ID, pThis->DevDesc.idProduct, true); AssertRC(rc);
949	rc = USBFilterSetNumExact(&Device, USBFILTERIDX_DEVICE_REV, pThis->DevDesc.bcdDevice, true); AssertRC(rc);
950	rc = USBFilterSetNumExact(&Device, USBFILTERIDX_DEVICE_CLASS, pThis->DevDesc.bDeviceClass, true); AssertRC(rc);
951	rc = USBFilterSetNumExact(&Device, USBFILTERIDX_DEVICE_SUB_CLASS, pThis->DevDesc.bDeviceSubClass, true); AssertRC(rc);
952	rc = USBFilterSetNumExact(&Device, USBFILTERIDX_DEVICE_PROTOCOL, pThis->DevDesc.bDeviceProtocol, true); AssertRC(rc);
953	/** @todo manufacturer, product and serial strings */
954
955	int iBestMatchRate = -1;
956	PCFGMNODE pBestMatch = NULL;
957	for (pCur = CFGMR3GetFirstChild(pCfgGlobal); pCur; pCur = CFGMR3GetNextChild(pCur))
958	{
959	/*
960	* Construct a filter from the attributes in the node.
961	*/
962	USBFILTER Filter;
963	USBFilterInit(&Filter, USBFILTERTYPE_CAPTURE);
964
965	/* numeric */
966	if ( RT_FAILURE(usbProxyQueryNum(&Filter, USBFILTERIDX_VENDOR_ID, pCur, "idVendor", "idVendorExpr"))
967	\|\| RT_FAILURE(usbProxyQueryNum(&Filter, USBFILTERIDX_PRODUCT_ID, pCur, "idProduct", "idProcutExpr"))
968	\|\| RT_FAILURE(usbProxyQueryNum(&Filter, USBFILTERIDX_DEVICE_REV, pCur, "bcdDevice", "bcdDeviceExpr"))
969	\|\| RT_FAILURE(usbProxyQueryNum(&Filter, USBFILTERIDX_DEVICE_CLASS, pCur, "bDeviceClass", "bDeviceClassExpr"))
970	\|\| RT_FAILURE(usbProxyQueryNum(&Filter, USBFILTERIDX_DEVICE_SUB_CLASS, pCur, "bDeviceSubClass", "bDeviceSubClassExpr"))
971	\|\| RT_FAILURE(usbProxyQueryNum(&Filter, USBFILTERIDX_DEVICE_PROTOCOL, pCur, "bDeviceProtocol", "bDeviceProtocolExpr")))
972	continue; /* skip it */
973
974	/* strings */
975	/** @todo manufacturer, product and serial strings */
976
977	/* ignore unknown config values, but not without bitching. */
978	if (!CFGMR3AreValuesValid(pCur,
979	"idVendor\0idVendorExpr\0"
980	"idProduct\0idProductExpr\0"
981	"bcdDevice\0bcdDeviceExpr\0"
982	"bDeviceClass\0bDeviceClassExpr\0"
983	"bDeviceSubClass\0bDeviceSubClassExpr\0"
984	"bDeviceProtocol\0bDeviceProtocolExpr\0"))
985	LogRel(("usbProxyConstruct: Unknown value(s) in config filter (ignored)!\n"));
986
987	/*
988	* Try match it and on match see if it has is a higher rate hit
989	* than the previous match. Quit if its a 100% match.
990	*/
991	int iRate = USBFilterMatchRated(&Filter, &Device);
992	if (iRate > iBestMatchRate)
993	{
994	pBestMatch = pCur;
995	iBestMatchRate = iRate;
996	if (iRate >= 100)
997	break;
998	}
999	}
1000	if (pBestMatch)
1001	pCfgGlobalDev = CFGMR3GetChild(pBestMatch, "Config");
1002	if (pCfgGlobalDev)
1003	pCfgGlobalDev = pCfgGlobal;
1004	}
1005
1006	/*
1007	* Query the rest of the configuration using the global as fallback.
1008	*/
1009	rc = CFGMR3QueryU32(pCfg, "MaskedIfs", &pThis->fMaskedIfs);
1010	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1011	rc = CFGMR3QueryU32(pCfgGlobalDev, "MaskedIfs", &pThis->fMaskedIfs);
1012	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1013	pThis->fMaskedIfs = 0;
1014	else
1015	AssertRCReturn(rc, rc);
1016
1017	bool fForce11Device;
1018	rc = CFGMR3QueryBool(pCfg, "Force11Device", &fForce11Device);
1019	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1020	rc = CFGMR3QueryBool(pCfgGlobalDev, "Force11Device", &fForce11Device);
1021	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1022	fForce11Device = false;
1023	else
1024	AssertRCReturn(rc, rc);
1025
1026	bool fForce11PacketSize;
1027	rc = CFGMR3QueryBool(pCfg, "Force11PacketSize", &fForce11PacketSize);
1028	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1029	rc = CFGMR3QueryBool(pCfgGlobalDev, "Force11PacketSize", &fForce11PacketSize);
1030	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1031	fForce11PacketSize = false;
1032	else
1033	AssertRCReturn(rc, rc);
1034
1035	/*
1036	* If we're masking interfaces, edit the descriptors.
1037	*/
1038	bool fEdited = pThis->fMaskedIfs != 0;
1039	if (pThis->fMaskedIfs)
1040	usbProxyDevEditOutMaskedIfs(pThis);
1041
1042	/*
1043	* Do 2.0 -> 1.1 device edits if requested to do so.
1044	*/
1045	if ( fForce11PacketSize
1046	&& pThis->DevDesc.bcdUSB >= 0x0200)
1047	{
1048	PVUSBDESCCONFIGEX paCfgs = pThis->paCfgDescs;
1049	for (unsigned iCfg = 0; iCfg < pThis->DevDesc.bNumConfigurations; iCfg++)
1050	{
1051	PVUSBINTERFACE paIfs = (PVUSBINTERFACE)paCfgs[iCfg].paIfs;
1052	for (unsigned iIf = 0; iIf < paCfgs[iCfg].Core.bNumInterfaces; iIf++)
1053	for (uint32_t iAlt = 0; iAlt < paIfs[iIf].cSettings; iAlt++)
1054	{
1055	/*
1056	* USB 1.1 defines the max for control, interrupt and bulk to be 64 bytes.
1057	* While isochronous has a max of 1023 bytes.
1058	*/
1059	PVUSBDESCENDPOINTEX paEps = (PVUSBDESCENDPOINTEX)paIfs[iIf].paSettings[iAlt].paEndpoints;
1060	for (unsigned iEp = 0; iEp < paIfs[iIf].paSettings[iAlt].Core.bNumEndpoints; iEp++)
1061	{
1062	const uint16_t cbMax = (paEps[iEp].Core.bmAttributes & 3) == 1 /* isoc */
1063	? 1023
1064	: 64;
1065	if (paEps[iEp].Core.wMaxPacketSize > cbMax)
1066	{
1067	Log(("usb-proxy: pProxyDev=%s correcting wMaxPacketSize from %#x to %#x (mainly for vista)\n",
1068	pUsbIns->pszName, paEps[iEp].Core.wMaxPacketSize, cbMax));
1069	paEps[iEp].Core.wMaxPacketSize = cbMax;
1070	fEdited = true;
1071	}
1072	}
1073	}
1074	}
1075	}
1076
1077	if ( fForce11Device
1078	&& pThis->DevDesc.bcdUSB == 0x0200)
1079	{
1080	/*
1081	* Discourages windows from helping you find a 2.0 port.
1082	*/
1083	Log(("usb-proxy: %s correcting USB version 2.0 to 1.1 (to avoid Windows warning)\n", pUsbIns->pszName));
1084	pThis->DevDesc.bcdUSB = 0x110;
1085	fEdited = true;
1086	}
1087
1088
1089	/*
1090	* Init the PDM/VUSB descriptor cache.
1091	*/
1092	pThis->DescCache.pDevice = &pThis->DevDesc;
1093	pThis->DescCache.paConfigs = pThis->paCfgDescs;
1094	pThis->DescCache.paLanguages = NULL;
1095	pThis->DescCache.cLanguages = 0;
1096	pThis->DescCache.fUseCachedDescriptors = fEdited;
1097	pThis->DescCache.fUseCachedStringsDescriptors = false;
1098
1099	/*
1100	* Call the backend if it wishes to do some more initializing
1101	* after we've read the config and descriptors.
1102	*/
1103	if (pThis->pOps->pfnInit)
1104	{
1105	rc = pThis->pOps->pfnInit(pThis);
1106	if (RT_FAILURE(rc))
1107	return rc;
1108	}
1109	pThis->fInited = true;
1110
1111	/*
1112	* We're good!
1113	*/
1114	Log(("usb-proxy: created pProxyDev=%s address '%s' fMaskedIfs=%#x (rc=%Rrc)\n",
1115	pUsbIns->pszName, szAddress, pThis->fMaskedIfs, rc));
1116	return VINF_SUCCESS;
1117	}
1118
1119
1120	/**
1121	* The USB proxy device registration record.
1122	*/
1123	const PDMUSBREG g_UsbDevProxy =
1124	{
1125	/* u32Version */
1126	PDM_USBREG_VERSION,
1127	/* szName */
1128	"USBProxy",
1129	/* pszDescription */
1130	"USB Proxy Device.",
1131	/* fFlags */
1132	0,
1133	/* cMaxInstances */
1134	~0U,
1135	/* cbInstance */
1136	sizeof(USBPROXYDEV),
1137	/* pfnConstruct */
1138	usbProxyConstruct,
1139	/* pfnDestruct */
1140	usbProxyDestruct,
1141	/* pfnVMInitComplete */
1142	NULL,
1143	/* pfnVMPowerOn */
1144	NULL,
1145	/* pfnVMReset */
1146	NULL,
1147	/* pfnVMSuspend */
1148	NULL,
1149	/* pfnVMResume */
1150	NULL,
1151	/* pfnVMPowerOff */
1152	NULL,
1153	/* pfnHotPlugged */
1154	NULL,
1155	/* pfnHotUnplugged */
1156	NULL,
1157	/* pfnDriverAttach */
1158	NULL,
1159	/* pfnDriverDetach */
1160	NULL,
1161	/* pfnQueryInterface */
1162	NULL,
1163	/* pfnUsbReset */
1164	usbProxyDevReset,
1165	/* pfnUsbGetDescriptorCache */
1166	usbProxyDevGetDescriptorCache,
1167	/* pfnUsbSetConfiguration */
1168	usbProxyDevSetConfiguration,
1169	/* pfnUsbSetInterface */
1170	usbProxyDevSetInterface,
1171	/* pfnUsbClearHaltedEndpoint */
1172	usbProxyDevClearHaltedEndpoint,
1173	/* pfnUrbNew */
1174	NULL,
1175	/* pfnUrbQueue */
1176	usbProxyDevUrbQueue,
1177	/* pfnUrbCancel */
1178	usbProxyDevUrbCancel,
1179	/* pfnUrbReap */
1180	usbProxyDevUrbReap,
1181	/* pfnWakeup */
1182	usbProxyDevWakeup,
1183
1184	/* u32TheEnd */
1185	PDM_USBREG_VERSION
1186	};
1187

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source: vbox/trunk/src/VBox/Devices/USB/USBProxyDevice.cpp@ 59738

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