USBProxyBackendSolaris.cpp@ 69496

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1	/* $Id: USBProxyBackendSolaris.cpp 69496 2017-10-28 14:55:58Z vboxsync $ */
2	/** @file
3	* VirtualBox USB Proxy Service, Solaris Specialization.
4	*/
5
6	/*
7	* Copyright (C) 2005-2017 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	#include "USBProxyBackend.h"
23	#include "Logging.h"
24
25	#include <VBox/usb.h>
26	#include <VBox/usblib.h>
27	#include <VBox/err.h>
28	#include <iprt/semaphore.h>
29	#include <iprt/path.h>
30
31	#include <sys/usb/usba.h>
32	#include <syslog.h>
33
34
35	/*********************************************************************************************************************************
36	* Internal Functions *
37	*********************************************************************************************************************************/
38	static int solarisWalkDeviceNode(di_node_t Node, void *pvArg);
39	static void solarisFreeUSBDevice(PUSBDEVICE pDevice);
40	static USBDEVICESTATE solarisDetermineUSBDeviceState(PUSBDEVICE pDevice, di_node_t Node);
41
42
43	/*********************************************************************************************************************************
44	* Structures and Typedefs *
45	*********************************************************************************************************************************/
46	typedef struct USBDEVICELIST
47	{
48	PUSBDEVICE pHead;
49	PUSBDEVICE pTail;
50	} USBDEVICELIST;
51	typedef USBDEVICELIST *PUSBDEVICELIST;
52
53
54	/**
55	* Initialize data members.
56	*/
57	USBProxyBackendSolaris::USBProxyBackendSolaris()
58	: USBProxyBackend(), mNotifyEventSem(NIL_RTSEMEVENT), mUSBLibInitialized(false)
59	{
60	LogFlowThisFunc(("\n"));
61	}
62
63	USBProxyBackendSolaris::~USBProxyBackendSolaris()
64	{
65	}
66
67	/**
68	* Initializes the object (called right after construction).
69	*
70	* @returns VBox status code.
71	*/
72	int USBProxyBackendSolaris::init(USBProxyService *aUsbProxyService, const com::Utf8Str &strId,
73	const com::Utf8Str &strAddress, bool fLoadingSettings)
74	{
75	USBProxyBackend::init(aUsbProxyService, strId, strAddress, fLoadingSettings);
76
77	unconst(m_strBackend) = Utf8Str("host");
78
79	/*
80	* Create semaphore.
81	*/
82	int rc = RTSemEventCreate(&mNotifyEventSem);
83	if (RT_FAILURE(rc))
84	return rc;
85
86	/*
87	* Initialize the USB library.
88	*/
89	rc = USBLibInit();
90	if (RT_FAILURE(rc))
91	{
92	/* mNotifyEventSem will be destroyed in uninit */
93	return rc;
94	}
95
96	mUSBLibInitialized = true;
97
98	/*
99	* Start the poller thread.
100	*/
101	start();
102	return VINF_SUCCESS;
103	}
104
105
106	/**
107	* Stop all service threads and free the device chain.
108	*/
109	void USBProxyBackendSolaris::uninit()
110	{
111	LogFlowThisFunc(("destruct\n"));
112
113	/*
114	* Stop the service.
115	*/
116	if (isActive())
117	stop();
118
119	/*
120	* Terminate the USB library
121	*/
122	if (mUSBLibInitialized)
123	{
124	USBLibTerm();
125	mUSBLibInitialized = false;
126	}
127
128	if (mNotifyEventSem != NIL_RTSEMEVENT)
129	{
130	RTSemEventDestroy(mNotifyEventSem);
131	mNotifyEventSem = NIL_RTSEMEVENT;
132	}
133	}
134
135
136	void *USBProxyBackendSolaris::insertFilter(PCUSBFILTER aFilter)
137	{
138	return USBLibAddFilter(aFilter);
139	}
140
141
142	void USBProxyBackendSolaris::removeFilter(void *pvID)
143	{
144	USBLibRemoveFilter(pvID);
145	}
146
147
148	int USBProxyBackendSolaris::wait(RTMSINTERVAL aMillies)
149	{
150	return RTSemEventWait(mNotifyEventSem, aMillies < 1000 ? 1000 : RT_MIN(aMillies, 5000));
151	}
152
153
154	int USBProxyBackendSolaris::interruptWait(void)
155	{
156	return RTSemEventSignal(mNotifyEventSem);
157	}
158
159
160	PUSBDEVICE USBProxyBackendSolaris::getDevices(void)
161	{
162	USBDEVICELIST DevList;
163	DevList.pHead = NULL;
164	DevList.pTail = NULL;
165	di_node_t RootNode = di_init("/", DINFOCPYALL);
166	if (RootNode != DI_NODE_NIL)
167	di_walk_node(RootNode, DI_WALK_CLDFIRST, &DevList, solarisWalkDeviceNode);
168
169	di_fini(RootNode);
170	return DevList.pHead;
171	}
172
173
174	static int solarisWalkDeviceNode(di_node_t Node, void *pvArg)
175	{
176	PUSBDEVICELIST pList = (PUSBDEVICELIST)pvArg;
177	AssertPtrReturn(pList, DI_WALK_TERMINATE);
178
179	/*
180	* Check if it's a USB device in the first place.
181	*/
182	bool fUSBDevice = false;
183	char *pszCompatNames = NULL;
184	int cCompatNames = di_compatible_names(Node, &pszCompatNames);
185	for (int i = 0; i < cCompatNames; i++, pszCompatNames += strlen(pszCompatNames) + 1)
186	if (!strncmp(pszCompatNames, RT_STR_TUPLE("usb")))
187	{
188	fUSBDevice = true;
189	break;
190	}
191
192	if (!fUSBDevice)
193	return DI_WALK_CONTINUE;
194
195	/*
196	* Check if it's a device node or interface.
197	*/
198	int *pInt = NULL;
199	char *pStr = NULL;
200	int rc = DI_WALK_CONTINUE;
201	if (di_prop_lookup_ints(DDI_DEV_T_ANY, Node, "interface", &pInt) < 0)
202	{
203	/* It's a device node. */
204	char *pszDevicePath = di_devfs_path(Node);
205	PUSBDEVICE pCur = (PUSBDEVICE)RTMemAllocZ(sizeof(*pCur));
206	if (!pCur)
207	{
208	LogRel(("USBService: failed to allocate %d bytes for PUSBDEVICE.\n", sizeof(*pCur)));
209	return DI_WALK_TERMINATE;
210	}
211
212	bool fValidDevice = false;
213	do
214	{
215	AssertBreak(pszDevicePath);
216
217	char *pszDriverName = di_driver_name(Node);
218
219	/*
220	* Skip hubs
221	*/
222	if ( pszDriverName
223	&& !strcmp(pszDriverName, "hubd"))
224	{
225	break;
226	}
227
228	/*
229	* Mandatory.
230	* snv_85 and above have usb-dev-descriptor node properties, but older one's do not.
231	* So if we cannot obtain the entire device descriptor, we try falling back to the
232	* individual properties (those must not fail, if it does we drop the device).
233	*/
234	uchar_t *pDevData = NULL;
235	int cbProp = di_prop_lookup_bytes(DDI_DEV_T_ANY, Node, "usb-dev-descriptor", &pDevData);
236	if ( cbProp > 0
237	&& pDevData)
238	{
239	usb_dev_descr_t pDeviceDescriptor = (usb_dev_descr_t )pDevData;
240	pCur->bDeviceClass = pDeviceDescriptor->bDeviceClass;
241	pCur->bDeviceSubClass = pDeviceDescriptor->bDeviceSubClass;
242	pCur->bDeviceProtocol = pDeviceDescriptor->bDeviceProtocol;
243	pCur->idVendor = pDeviceDescriptor->idVendor;
244	pCur->idProduct = pDeviceDescriptor->idProduct;
245	pCur->bcdDevice = pDeviceDescriptor->bcdDevice;
246	pCur->bcdUSB = pDeviceDescriptor->bcdUSB;
247	pCur->bNumConfigurations = pDeviceDescriptor->bNumConfigurations;
248	pCur->fPartialDescriptor = false;
249	}
250	else
251	{
252	AssertBreak(di_prop_lookup_ints(DDI_DEV_T_ANY, Node, "usb-vendor-id", &pInt) > 0);
253	pCur->idVendor = (uint16_t)*pInt;
254
255	AssertBreak(di_prop_lookup_ints(DDI_DEV_T_ANY, Node, "usb-product-id", &pInt) > 0);
256	pCur->idProduct = (uint16_t)*pInt;
257
258	AssertBreak(di_prop_lookup_ints(DDI_DEV_T_ANY, Node, "usb-revision-id", &pInt) > 0);
259	pCur->bcdDevice = (uint16_t)*pInt;
260
261	AssertBreak(di_prop_lookup_ints(DDI_DEV_T_ANY, Node, "usb-release", &pInt) > 0);
262	pCur->bcdUSB = (uint16_t)*pInt;
263
264	pCur->fPartialDescriptor = true;
265	}
266
267	char *pszPortAddr = di_bus_addr(Node);
268	if (pszPortAddr)
269	pCur->bPort = RTStrToUInt8(pszPortAddr); /* Bus & Port are mixed up (kernel driver/userland) */
270	else
271	pCur->bPort = 0;
272
273	char szBuf[PATH_MAX + 48];
274	RTStrPrintf(szBuf, sizeof(szBuf), "%#x:%#x:%d:%s", pCur->idVendor, pCur->idProduct, pCur->bcdDevice, pszDevicePath);
275	pCur->pszAddress = RTStrDup(szBuf);
276	AssertBreak(pCur->pszAddress);
277
278	pCur->pszDevicePath = RTStrDup(pszDevicePath);
279	AssertBreak(pCur->pszDevicePath);
280
281	pCur->pszBackend = RTStrDup("host");
282	AssertBreak(pCur->pszBackend);
283
284	/*
285	* Optional (some devices don't have all these)
286	*/
287	char *pszCopy;
288	if (di_prop_lookup_strings(DDI_DEV_T_ANY, Node, "usb-product-name", &pStr) > 0)
289	{
290	pCur->pszProduct = pszCopy = RTStrDup(pStr);
291	USBLibPurgeEncoding(pszCopy);
292	}
293
294	if (di_prop_lookup_strings(DDI_DEV_T_ANY, Node, "usb-vendor-name", &pStr) > 0)
295	{
296	pCur->pszManufacturer = pszCopy = RTStrDup(pStr);
297	USBLibPurgeEncoding(pszCopy);
298	}
299
300	if (di_prop_lookup_strings(DDI_DEV_T_ANY, Node, "usb-serialno", &pStr) > 0)
301	{
302	pCur->pszSerialNumber = pszCopy = RTStrDup(pStr);
303	USBLibPurgeEncoding(pszCopy);
304	}
305
306	if (pCur->bcdUSB == 0x300)
307	pCur->enmSpeed = USBDEVICESPEED_SUPER;
308	else if (di_prop_lookup_ints(DDI_DEV_T_ANY, Node, "low-speed", &pInt) >= 0)
309	pCur->enmSpeed = USBDEVICESPEED_LOW;
310	else if (di_prop_lookup_ints(DDI_DEV_T_ANY, Node, "high-speed", &pInt) >= 0)
311	pCur->enmSpeed = USBDEVICESPEED_HIGH;
312	else
313	pCur->enmSpeed = USBDEVICESPEED_FULL;
314
315	/* Determine state of the USB device. */
316	pCur->enmState = solarisDetermineUSBDeviceState(pCur, Node);
317
318	/*
319	* Valid device, add it to the list.
320	*/
321	fValidDevice = true;
322	pCur->pPrev = pList->pTail;
323	if (pList->pTail)
324	pList->pTail = pList->pTail->pNext = pCur;
325	else
326	pList->pTail = pList->pHead = pCur;
327
328	rc = DI_WALK_CONTINUE;
329	} while (0);
330
331	di_devfs_path_free(pszDevicePath);
332	if (!fValidDevice)
333	solarisFreeUSBDevice(pCur);
334	}
335	return rc;
336	}
337
338
339	static USBDEVICESTATE solarisDetermineUSBDeviceState(PUSBDEVICE pDevice, di_node_t Node)
340	{
341	char *pszDriverName = di_driver_name(Node);
342
343	/* Not possible unless a user explicitly unbinds the default driver. */
344	if (!pszDriverName)
345	return USBDEVICESTATE_UNUSED;
346
347	if (!strncmp(pszDriverName, RT_STR_TUPLE(VBOXUSB_DRIVER_NAME)))
348	return USBDEVICESTATE_HELD_BY_PROXY;
349
350	NOREF(pDevice);
351	return USBDEVICESTATE_USED_BY_HOST_CAPTURABLE;
352	}
353
354
355	int USBProxyBackendSolaris::captureDevice(HostUSBDevice *aDevice)
356	{
357	/*
358	* Check preconditions.
359	*/
360	AssertReturn(aDevice, VERR_GENERAL_FAILURE);
361	AssertReturn(!aDevice->isWriteLockOnCurrentThread(), VERR_GENERAL_FAILURE);
362
363	AutoReadLock devLock(aDevice COMMA_LOCKVAL_SRC_POS);
364	LogFlowThisFunc(("aDevice=%s\n", aDevice->i_getName().c_str()));
365
366	Assert(aDevice->i_getUnistate() == kHostUSBDeviceState_Capturing);
367	AssertReturn(aDevice->i_getUsbData(), VERR_INVALID_POINTER);
368
369	/*
370	* Create a one-shot capture filter for the device and reset the device.
371	*/
372	USBFILTER Filter;
373	USBFilterInit(&Filter, USBFILTERTYPE_ONESHOT_CAPTURE);
374	initFilterFromDevice(&Filter, aDevice);
375
376	void *pvId = USBLibAddFilter(&Filter);
377	if (!pvId)
378	{
379	LogRel(("USBService: failed to add filter\n"));
380	return VERR_GENERAL_FAILURE;
381	}
382
383	PUSBDEVICE pDev = aDevice->i_getUsbData();
384	int rc = USBLibResetDevice(pDev->pszDevicePath, true);
385	if (RT_SUCCESS(rc))
386	aDevice->i_setBackendUserData(pvId);
387	else
388	{
389	USBLibRemoveFilter(pvId);
390	pvId = NULL;
391	}
392	LogFlowThisFunc(("returns %Rrc pvId=%p\n", rc, pvId));
393	return rc;
394	}
395
396
397	void USBProxyBackendSolaris::captureDeviceCompleted(HostUSBDevice *aDevice, bool aSuccess)
398	{
399	AssertReturnVoid(aDevice->isWriteLockOnCurrentThread());
400	/*
401	* Remove the one-shot filter if necessary.
402	*/
403	LogFlowThisFunc(("aDevice=%s aSuccess=%RTbool mOneShotId=%p\n", aDevice->i_getName().c_str(), aSuccess, aDevice->i_getBackendUserData()));
404	if (!aSuccess && aDevice->i_getBackendUserData())
405	USBLibRemoveFilter(aDevice->i_getBackendUserData());
406	aDevice->i_setBackendUserData(NULL);
407	USBProxyBackend::captureDeviceCompleted(aDevice, aSuccess);
408	}
409
410
411	int USBProxyBackendSolaris::releaseDevice(HostUSBDevice *aDevice)
412	{
413	/*
414	* Check preconditions.
415	*/
416	AssertReturn(aDevice, VERR_GENERAL_FAILURE);
417	AssertReturn(!aDevice->isWriteLockOnCurrentThread(), VERR_GENERAL_FAILURE);
418
419	AutoReadLock devLock(aDevice COMMA_LOCKVAL_SRC_POS);
420	LogFlowThisFunc(("aDevice=%s\n", aDevice->i_getName().c_str()));
421
422	Assert(aDevice->i_getUnistate() == kHostUSBDeviceState_ReleasingToHost);
423	AssertReturn(aDevice->i_getUsbData(), VERR_INVALID_POINTER);
424
425	/*
426	* Create a one-shot ignore filter for the device and reset it.
427	*/
428	USBFILTER Filter;
429	USBFilterInit(&Filter, USBFILTERTYPE_ONESHOT_IGNORE);
430	initFilterFromDevice(&Filter, aDevice);
431
432	void *pvId = USBLibAddFilter(&Filter);
433	if (!pvId)
434	{
435	LogRel(("USBService: Adding ignore filter failed!\n"));
436	return VERR_GENERAL_FAILURE;
437	}
438
439	PUSBDEVICE pDev = aDevice->i_getUsbData();
440	int rc = USBLibResetDevice(pDev->pszDevicePath, true /* Re-attach */);
441	if (RT_SUCCESS(rc))
442	aDevice->i_setBackendUserData(pvId);
443	else
444	{
445	USBLibRemoveFilter(pvId);
446	pvId = NULL;
447	}
448	LogFlowThisFunc(("returns %Rrc pvId=%p\n", rc, pvId));
449	return rc;
450	}
451
452
453	void USBProxyBackendSolaris::releaseDeviceCompleted(HostUSBDevice *aDevice, bool aSuccess)
454	{
455	AssertReturnVoid(aDevice->isWriteLockOnCurrentThread());
456	/*
457	* Remove the one-shot filter if necessary.
458	*/
459	LogFlowThisFunc(("aDevice=%s aSuccess=%RTbool mOneShotId=%p\n", aDevice->i_getName().c_str(), aSuccess, aDevice->i_getBackendUserData()));
460	if (!aSuccess && aDevice->i_getBackendUserData())
461	USBLibRemoveFilter(aDevice->i_getBackendUserData());
462	aDevice->i_setBackendUserData(NULL);
463	USBProxyBackend::releaseDeviceCompleted(aDevice, aSuccess);
464	}
465
466
467	/**
468	* Returns whether devices reported by this backend go through a de/re-attach
469	* and device re-enumeration cycle when they are captured or released.
470	*/
471	bool USBProxyBackendSolaris::i_isDevReEnumerationRequired()
472	{
473	return true;
474	}
475
476
477	/**
478	* Wrapper called by walkDeviceNode.
479	*
480	* @param pDevice The USB device to free.
481	*/
482	void solarisFreeUSBDevice(PUSBDEVICE pDevice)
483	{
484	USBProxyBackend::freeDevice(pDevice);
485	}

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source: vbox/trunk/src/VBox/Main/src-server/solaris/USBProxyBackendSolaris.cpp@ 69496

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