AudioTestServiceTcp.cpp@ 91071

Last change on this file since 91071 was 91034, checked in by vboxsync, 3 years ago
Audio/Validation Kit: More code for resolving the connection problems. bugref:10008
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 30.5 KB

Line
1	/* $Id: AudioTestServiceTcp.cpp 91034 2021-08-31 15:51:14Z vboxsync $ */
2	/** @file
3	* AudioTestServiceTcp - Audio test execution server, TCP/IP Transport Layer.
4	*/
5
6	/*
7	* Copyright (C) 2021 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_AUDIO_TEST
23	#include <iprt/log.h>
24
25	#include <iprt/asm.h>
26	#include <iprt/assert.h>
27	#include <iprt/critsect.h>
28	#include <iprt/err.h>
29	#include <iprt/mem.h>
30	#include <iprt/message.h>
31	#include <iprt/poll.h>
32	#include <iprt/string.h>
33	#include <iprt/tcp.h>
34	#include <iprt/thread.h>
35	#include <iprt/time.h>
36
37	#include <VBox/log.h>
38
39	#include "AudioTestService.h"
40	#include "AudioTestServiceInternal.h"
41
42
43	/*********************************************************************************************************************************
44	* Defined Constants And Macros *
45	*********************************************************************************************************************************/
46
47
48	/*********************************************************************************************************************************
49	* Structures and Typedefs *
50	*********************************************************************************************************************************/
51	/**
52	* TCP specific client data.
53	*/
54	typedef struct ATSTRANSPORTCLIENT
55	{
56	/** Socket of the current client. */
57	RTSOCKET hTcpClient;
58	/** Indicates whether \a hTcpClient comes from the server or from a client
59	* connect (relevant when closing it). */
60	bool fFromServer;
61	/** The size of the stashed data. */
62	size_t cbTcpStashed;
63	/** The size of the stashed data allocation. */
64	size_t cbTcpStashedAlloced;
65	/** The stashed data. */
66	uint8_t *pbTcpStashed;
67	} ATSTRANSPORTCLIENT;
68
69	/**
70	* Structure for keeping Audio Test Service (ATS) transport instance-specific data.
71	*/
72	typedef struct ATSTRANSPORTINST
73	{
74	/** Critical section for serializing access. */
75	RTCRITSECT CritSect;
76	/** Connection mode to use. */
77	ATSCONNMODE enmConnMode;
78	/** The addresses to bind to. Empty string means any. */
79	char szBindAddr[256];
80	/** The TCP port to listen to. */
81	uint32_t uBindPort;
82	/** The addresses to connect to if running in reversed (VM NATed) mode. */
83	char szConnectAddr[256];
84	/** The TCP port to connect to if running in reversed (VM NATed) mode. */
85	uint32_t uConnectPort;
86	/** Pointer to the TCP server instance. */
87	PRTTCPSERVER pTcpServer;
88	/** Thread calling RTTcpServerListen2. */
89	RTTHREAD hThreadServer;
90	/** Thread calling RTTcpClientConnect. */
91	RTTHREAD hThreadConnect;
92	/** The main thread handle (for signalling). */
93	RTTHREAD hThreadMain;
94	/** Stop connecting attempts when set. */
95	bool fStopConnecting;
96	/** Connect cancel cookie. */
97	PRTTCPCLIENTCONNECTCANCEL volatile pConnectCancelCookie;
98	} ATSTRANSPORTINST;
99	/** Pointer to an Audio Test Service (ATS) TCP/IP transport instance. */
100	typedef ATSTRANSPORTINST *PATSTRANSPORTINST;
101
102	/**
103	* Structure holding an ATS connection context, which is
104	* required when connecting a client via server (listening) or client (connecting).
105	*/
106	typedef struct ATSCONNCTX
107	{
108	/** Pointer to transport instance to use. */
109	PATSTRANSPORTINST pInst;
110	/** Pointer to transport client to connect. */
111	PATSTRANSPORTCLIENT pClient;
112	/** Connection timeout (in ms).
113	* Use RT_INDEFINITE_WAIT to wait indefinitely. */
114	uint32_t msTimeout;
115	} ATSCONNCTX;
116	/** Pointer to an Audio Test Service (ATS) TCP/IP connection context. */
117	typedef ATSCONNCTX *PATSCONNCTX;
118
119
120	/*********************************************************************************************************************************
121	* Global Variables *
122	*********************************************************************************************************************************/
123
124	/**
125	* Disconnects the current client and frees all stashed data.
126	*/
127	static void atsTcpDisconnectClient(PATSTRANSPORTINST pThis, PATSTRANSPORTCLIENT pClient)
128	{
129	RT_NOREF(pThis);
130
131	if (pClient->hTcpClient != NIL_RTSOCKET)
132	{
133	LogRelFlowFunc(("%RTsock\n", pClient->hTcpClient));
134
135	int rc;
136	if (pClient->fFromServer)
137	rc = RTTcpServerDisconnectClient2(pClient->hTcpClient);
138	else
139	rc = RTTcpClientClose(pClient->hTcpClient);
140	pClient->hTcpClient = NIL_RTSOCKET;
141	AssertRCSuccess(rc);
142	}
143
144	if (pClient->pbTcpStashed)
145	{
146	RTMemFree(pClient->pbTcpStashed);
147	pClient->pbTcpStashed = NULL;
148	}
149	}
150
151	/**
152	* Sets the current client socket in a safe manner.
153	*
154	* @returns NIL_RTSOCKET if consumed, otherwise hTcpClient.
155	* @param pThis Transport instance.
156	* @param pClient Client to set the socket for.
157	* @param fFromServer Whether the socket is from a server (listening) or client (connecting) call.
158	* Important when closing / disconnecting.
159	* @param hTcpClient The client socket.
160	*/
161	static RTSOCKET atsTcpSetClient(PATSTRANSPORTINST pThis, PATSTRANSPORTCLIENT pClient, bool fFromServer, RTSOCKET hTcpClient)
162	{
163	RTCritSectEnter(&pThis->CritSect);
164	if ( pClient->hTcpClient == NIL_RTSOCKET
165	&& !pThis->fStopConnecting)
166	{
167	LogRelFlowFunc(("New client %RTsock connected (fFromServer=%RTbool)\n", hTcpClient, fFromServer));
168
169	pClient->fFromServer = fFromServer;
170	pClient->hTcpClient = hTcpClient;
171	hTcpClient = NIL_RTSOCKET; /* Invalidate, as pClient has now ownership. */
172	}
173	RTCritSectLeave(&pThis->CritSect);
174	return hTcpClient;
175	}
176
177	/**
178	* Checks if it's a fatal RTTcpClientConnect return code.
179	*
180	* @returns true / false.
181	* @param rc The IPRT status code.
182	*/
183	static bool atsTcpIsFatalClientConnectStatus(int rc)
184	{
185	return rc != VERR_NET_UNREACHABLE
186	&& rc != VERR_NET_HOST_DOWN
187	&& rc != VERR_NET_HOST_UNREACHABLE
188	&& rc != VERR_NET_CONNECTION_REFUSED
189	&& rc != VERR_TIMEOUT
190	&& rc != VERR_NET_CONNECTION_TIMED_OUT;
191	}
192
193	/**
194	* Server mode connection thread.
195	*
196	* @returns iprt status code.
197	* @param hSelf Thread handle. Ignored.
198	* @param pvUser Pointer to ATSTRANSPORTINST the thread is bound to.
199	*/
200	static DECLCALLBACK(int) atsTcpServerConnectThread(RTTHREAD hSelf, void *pvUser)
201	{
202	RT_NOREF(hSelf);
203
204	PATSCONNCTX pConnCtx = (PATSCONNCTX)pvUser;
205	PATSTRANSPORTINST pThis = pConnCtx->pInst;
206	PATSTRANSPORTCLIENT pClient = pConnCtx->pClient;
207
208	/** @todo Implement cancellation support for using pConnCtx->msTimeout. */
209
210	LogRelFlowFuncEnter();
211
212	RTSOCKET hTcpClient;
213	int rc = RTTcpServerListen2(pThis->pTcpServer, &hTcpClient);
214	if (RT_SUCCESS(rc))
215	{
216	hTcpClient = atsTcpSetClient(pThis, pClient, true /* fFromServer */, hTcpClient);
217	RTTcpServerDisconnectClient2(hTcpClient);
218	}
219
220	LogRelFlowFuncLeaveRC(rc);
221	return rc;
222	}
223
224	/**
225	* Client mode connection thread.
226	*
227	* @returns iprt status code.
228	* @param hSelf Thread handle. Use to sleep on. The main thread will
229	* signal it to speed up thread shutdown.
230	* @param pvUser Pointer to a connection context (PATSCONNCTX) the thread is bound to.
231	*/
232	static DECLCALLBACK(int) atsTcpClientConnectThread(RTTHREAD hSelf, void *pvUser)
233	{
234	PATSCONNCTX pConnCtx = (PATSCONNCTX)pvUser;
235	PATSTRANSPORTINST pThis = pConnCtx->pInst;
236	PATSTRANSPORTCLIENT pClient = pConnCtx->pClient;
237
238	uint64_t msStartTs = RTTimeMilliTS();
239
240	LogRelFlowFuncEnter();
241
242	for (;;)
243	{
244	/* Stop? */
245	RTCritSectEnter(&pThis->CritSect);
246	bool fStop = pThis->fStopConnecting;
247	RTCritSectLeave(&pThis->CritSect);
248	if (fStop)
249	return VINF_SUCCESS;
250
251	/* Try connect. / /* @todo make cancelable! */
252	RTSOCKET hTcpClient;
253	int rc = RTTcpClientConnectEx(pThis->szConnectAddr, pThis->uConnectPort, &hTcpClient,
254	RT_SOCKETCONNECT_DEFAULT_WAIT, &pThis->pConnectCancelCookie);
255	if (RT_SUCCESS(rc))
256	{
257	hTcpClient = atsTcpSetClient(pThis, pClient, false /* fFromServer */, hTcpClient);
258	RTTcpClientCloseEx(hTcpClient, true /* fGracefulShutdown*/);
259	break;
260	}
261
262	if (atsTcpIsFatalClientConnectStatus(rc))
263	return rc;
264
265	if ( pConnCtx->msTimeout != RT_INDEFINITE_WAIT
266	&& RTTimeMilliTS() - msStartTs >= pConnCtx->msTimeout)
267	{
268	LogRelFlowFunc(("Timed out (%RU32ms)\n", pConnCtx->msTimeout));
269	return VERR_TIMEOUT;
270	}
271
272	/* Delay a wee bit before retrying. */
273	RTThreadUserWait(hSelf, 1536);
274	}
275
276	LogRelFlowFuncLeave();
277	return VINF_SUCCESS;
278	}
279
280	/**
281	* Wait on the threads to complete.
282	*
283	* @returns Thread status (if collected), otherwise VINF_SUCCESS.
284	* @param pThis Transport instance.
285	* @param cMillies The period to wait on each thread.
286	*/
287	static int atsTcpConnectWaitOnThreads(PATSTRANSPORTINST pThis, RTMSINTERVAL cMillies)
288	{
289	int rcRet = VINF_SUCCESS;
290
291	LogRelFlowFuncEnter();
292
293	if (pThis->hThreadConnect != NIL_RTTHREAD)
294	{
295	int rcThread;
296	int rc2 = RTThreadWait(pThis->hThreadConnect, cMillies, &rcThread);
297	if (RT_SUCCESS(rc2))
298	{
299	pThis->hThreadConnect = NIL_RTTHREAD;
300	rcRet = rcThread;
301	}
302	}
303
304	if (pThis->hThreadServer != NIL_RTTHREAD)
305	{
306	int rcThread;
307	int rc2 = RTThreadWait(pThis->hThreadServer, cMillies, &rcThread);
308	if (RT_SUCCESS(rc2))
309	{
310	pThis->hThreadServer = NIL_RTTHREAD;
311	if (RT_SUCCESS(rc2))
312	rcRet = rcThread;
313	}
314	}
315
316	LogRelFlowFuncLeaveRC(rcRet);
317	return rcRet;
318	}
319
320	/**
321	* @interface_method_impl{ATSTRANSPORT,pfnWaitForConnect}
322	*/
323	static DECLCALLBACK(int) atsTcpWaitForConnect(PATSTRANSPORTINST pThis, RTMSINTERVAL msTimeout,
324	bool *pfFromServer, PPATSTRANSPORTCLIENT ppClientNew)
325	{
326	PATSTRANSPORTCLIENT pClient = (PATSTRANSPORTCLIENT)RTMemAllocZ(sizeof(ATSTRANSPORTCLIENT));
327	AssertPtrReturn(pClient, VERR_NO_MEMORY);
328
329	int rc;
330
331	LogRelFlowFunc(("msTimeout=%RU32, enmConnMode=%#x\n", msTimeout, pThis->enmConnMode));
332
333	uint64_t msStartTs = RTTimeMilliTS();
334
335	if (pThis->enmConnMode == ATSCONNMODE_SERVER)
336	{
337	/** @todo Implement cancellation support for using \a msTimeout. */
338
339	pClient->fFromServer = true;
340	rc = RTTcpServerListen2(pThis->pTcpServer, &pClient->hTcpClient);
341	LogRelFlowFunc(("RTTcpServerListen2(%RTsock) -> %Rrc\n", pClient->hTcpClient, rc));
342	}
343	else if (pThis->enmConnMode == ATSCONNMODE_CLIENT)
344	{
345	pClient->fFromServer = false;
346	for (;;)
347	{
348	LogRelFlowFunc(("Calling RTTcpClientConnect(%s, %u,)...\n", pThis->szConnectAddr, pThis->uConnectPort));
349	rc = RTTcpClientConnect(pThis->szConnectAddr, pThis->uConnectPort, &pClient->hTcpClient);
350	LogRelFlowFunc(("RTTcpClientConnect(%RTsock) -> %Rrc\n", pClient->hTcpClient, rc));
351	if (RT_SUCCESS(rc) \|\| atsTcpIsFatalClientConnectStatus(rc))
352	break;
353
354	if ( msTimeout != RT_INDEFINITE_WAIT
355	&& RTTimeMilliTS() - msStartTs >= msTimeout)
356	{
357	rc = VERR_TIMEOUT;
358	break;
359	}
360
361	if (pThis->fStopConnecting)
362	{
363	rc = VINF_SUCCESS;
364	break;
365	}
366
367	/* Delay a wee bit before retrying. */
368	RTThreadSleep(1536);
369	}
370	}
371	else
372	{
373	Assert(pThis->enmConnMode == ATSCONNMODE_BOTH);
374
375	/*
376	* Create client threads.
377	*/
378	RTCritSectEnter(&pThis->CritSect);
379
380	pThis->fStopConnecting = false;
381	RTCritSectLeave(&pThis->CritSect);
382
383	atsTcpConnectWaitOnThreads(pThis, 32 /* cMillies */);
384
385	ATSCONNCTX ConnCtx;
386	RT_ZERO(ConnCtx);
387	ConnCtx.pInst = pThis;
388	ConnCtx.pClient = pClient;
389	ConnCtx.msTimeout = msTimeout;
390
391	rc = VINF_SUCCESS;
392	if (pThis->hThreadConnect == NIL_RTTHREAD)
393	{
394	pThis->pConnectCancelCookie = NULL;
395	rc = RTThreadCreate(&pThis->hThreadConnect, atsTcpClientConnectThread, &ConnCtx, 0, RTTHREADTYPE_DEFAULT,
396	RTTHREADFLAGS_WAITABLE, "tcpconn");
397	}
398	if (pThis->hThreadServer == NIL_RTTHREAD && RT_SUCCESS(rc))
399	rc = RTThreadCreate(&pThis->hThreadServer, atsTcpServerConnectThread, &ConnCtx, 0, RTTHREADTYPE_DEFAULT,
400	RTTHREADFLAGS_WAITABLE, "tcpserv");
401
402	RTCritSectEnter(&pThis->CritSect);
403
404	/*
405	* Wait for connection to be established.
406	*/
407	while ( RT_SUCCESS(rc)
408	&& pClient->hTcpClient == NIL_RTSOCKET)
409	{
410	RTCritSectLeave(&pThis->CritSect);
411	rc = atsTcpConnectWaitOnThreads(pThis, 10 /* cMillies */);
412	RTCritSectEnter(&pThis->CritSect);
413	}
414
415	/*
416	* Cancel the threads.
417	*/
418	pThis->fStopConnecting = true;
419
420	RTCritSectLeave(&pThis->CritSect);
421	RTTcpClientCancelConnect(&pThis->pConnectCancelCookie);
422	}
423
424	if (RT_SUCCESS(rc))
425	{
426	if (pfFromServer)
427	*pfFromServer = pClient->fFromServer;
428	*ppClientNew = pClient;
429	}
430	else
431	{
432	if (pClient)
433	{
434	RTTcpServerDisconnectClient2(pClient->hTcpClient);
435
436	RTMemFree(pClient);
437	pClient = NULL;
438	}
439	}
440
441	if (RT_FAILURE(rc))
442	LogRelFunc(("Failed with %Rrc\n", rc));
443
444	return rc;
445	}
446
447	/**
448	* @interface_method_impl{ATSTRANSPORT,pfnNotifyReboot}
449	*/
450	static DECLCALLBACK(void) atsTcpNotifyReboot(PATSTRANSPORTINST pThis)
451	{
452	LogRelFlowFuncEnter();
453	if (pThis->pTcpServer)
454	{
455	int rc = RTTcpServerDestroy(pThis->pTcpServer);
456	if (RT_FAILURE(rc))
457	LogRelFunc(("RTTcpServerDestroy failed, rc=%Rrc", rc));
458	pThis->pTcpServer = NULL;
459	}
460	LogRelFlowFuncLeave();
461	}
462
463	/**
464	* @interface_method_impl{ATSTRANSPORT,pfnNotifyBye}
465	*/
466	static DECLCALLBACK(void) atsTcpNotifyBye(PATSTRANSPORTINST pThis, PATSTRANSPORTCLIENT pClient)
467	{
468	LogRelFunc(("%RTsock\n", pClient->hTcpClient));
469	atsTcpDisconnectClient(pThis, pClient);
470	}
471
472	/**
473	* @interface_method_impl{ATSTRANSPORT,pfnNotifyHowdy}
474	*/
475	static DECLCALLBACK(void) atsTcpNotifyHowdy(PATSTRANSPORTINST pThis, PATSTRANSPORTCLIENT pClient)
476	{
477	LogRelFunc(("%RTsock\n", pClient->hTcpClient));
478
479	/* nothing to do here */
480	RT_NOREF(pThis);
481	}
482
483	/**
484	* @interface_method_impl{ATSTRANSPORT,pfnBabble}
485	*/
486	static DECLCALLBACK(void) atsTcpBabble(PATSTRANSPORTINST pThis, PATSTRANSPORTCLIENT pClient, PCATSPKTHDR pPktHdr, RTMSINTERVAL cMsSendTimeout)
487	{
488	/*
489	* Try send the babble reply.
490	*/
491	RT_NOREF(cMsSendTimeout); /** @todo implement the timeout here; non-blocking write + select-on-write. */
492	int rc;
493	size_t cbToSend = RT_ALIGN_Z(pPktHdr->cb, ATSPKT_ALIGNMENT);
494	do rc = RTTcpWrite(pClient->hTcpClient, pPktHdr, cbToSend);
495	while (rc == VERR_INTERRUPTED);
496
497	/*
498	* Disconnect the client.
499	*/
500	LogRelFlowFunc(("atsTcpDisconnectClient(%RTsock) (RTTcpWrite rc=%Rrc)\n", pClient->hTcpClient, rc));
501	atsTcpDisconnectClient(pThis, pClient);
502	}
503
504	/**
505	* @interface_method_impl{ATSTRANSPORT,pfnSendPkt}
506	*/
507	static DECLCALLBACK(int) atsTcpSendPkt(PATSTRANSPORTINST pThis, PATSTRANSPORTCLIENT pClient, PCATSPKTHDR pPktHdr)
508	{
509	AssertReturn(pPktHdr->cb >= sizeof(ATSPKTHDR), VERR_INVALID_PARAMETER);
510
511	/*
512	* Write it.
513	*/
514	size_t cbToSend = RT_ALIGN_Z(pPktHdr->cb, ATSPKT_ALIGNMENT);
515
516	Log3Func(("%RU32 -> %zu\n", pPktHdr->cb, cbToSend));
517
518	LogRelFlowFunc(("pClient=%RTsock\n", pClient->hTcpClient));
519	LogRelFlowFunc(("Header:\n"
520	"%.*Rhxd\n", RT_MIN(sizeof(ATSPKTHDR), cbToSend), pPktHdr));
521
522	if (cbToSend > sizeof(ATSPKTHDR))
523	LogRelFlowFunc(("Payload:\n"
524	"%.*Rhxd\n",
525	RT_MIN(64, cbToSend - sizeof(ATSPKTHDR)), (uint8_t *)pPktHdr + sizeof(ATSPKTHDR)));
526
527	int rc = RTTcpWrite(pClient->hTcpClient, pPktHdr, cbToSend);
528	if ( RT_FAILURE(rc)
529	&& rc != VERR_INTERRUPTED)
530	{
531	/* assume fatal connection error. */
532	LogRelFunc(("RTTcpWrite -> %Rrc -> atsTcpDisconnectClient(%RTsock)\n", rc, pClient->hTcpClient));
533	atsTcpDisconnectClient(pThis, pClient);
534	}
535
536	LogRelFlowFunc(("pClient=%RTsock, cbSent=%zu -> %Rrc\n",
537	pClient->hTcpClient, cbToSend, rc));
538
539	return rc;
540	}
541
542	/**
543	* @interface_method_impl{ATSTRANSPORT,pfnRecvPkt}
544	*/
545	static DECLCALLBACK(int) atsTcpRecvPkt(PATSTRANSPORTINST pThis, PATSTRANSPORTCLIENT pClient, PPATSPKTHDR ppPktHdr)
546	{
547	int rc = VINF_SUCCESS;
548	*ppPktHdr = NULL;
549
550	LogRelFlowFunc(("pClient=%RTsock (cbTcpStashed=%zu, cbTcpStashedAlloced=%zu)\n",
551	pClient->hTcpClient, pClient->cbTcpStashed, pClient->cbTcpStashedAlloced));
552
553	/*
554	* Read state.
555	*/
556	size_t offData = 0;
557	size_t cbData = 0;
558	size_t cbDataAlloced;
559	uint8_t *pbData = NULL;
560
561	/*
562	* Any stashed data?
563	*/
564	if (pClient->cbTcpStashedAlloced)
565	{
566	offData = pClient->cbTcpStashed;
567	cbDataAlloced = pClient->cbTcpStashedAlloced;
568	pbData = pClient->pbTcpStashed;
569
570	pClient->cbTcpStashed = 0;
571	pClient->cbTcpStashedAlloced = 0;
572	pClient->pbTcpStashed = NULL;
573	}
574	else
575	{
576	cbDataAlloced = RT_ALIGN_Z(64, ATSPKT_ALIGNMENT);
577	pbData = (uint8_t *)RTMemAlloc(cbDataAlloced);
578	AssertPtrReturn(pbData, VERR_NO_MEMORY);
579	}
580
581	/*
582	* Read and validate the length.
583	*/
584	while (offData < sizeof(uint32_t))
585	{
586	size_t cbRead;
587	rc = RTTcpRead(pClient->hTcpClient, pbData + offData, sizeof(uint32_t) - offData, &cbRead);
588	if (RT_FAILURE(rc))
589	break;
590	if (cbRead == 0)
591	{
592	LogRelFunc(("RTTcpRead -> %Rrc / cbRead=0 -> VERR_NET_NOT_CONNECTED (#1)\n", rc));
593	rc = VERR_NET_NOT_CONNECTED;
594	break;
595	}
596	offData += cbRead;
597	}
598	if (RT_SUCCESS(rc))
599	{
600	ASMCompilerBarrier(); /* paranoia^3 */
601	cbData = (uint32_t volatile )pbData;
602	if (cbData >= sizeof(ATSPKTHDR) && cbData <= ATSPKT_MAX_SIZE)
603	{
604	/*
605	* Align the length and reallocate the return packet it necessary.
606	*/
607	cbData = RT_ALIGN_Z(cbData, ATSPKT_ALIGNMENT);
608	if (cbData > cbDataAlloced)
609	{
610	void *pvNew = RTMemRealloc(pbData, cbData);
611	if (pvNew)
612	{
613	pbData = (uint8_t *)pvNew;
614	cbDataAlloced = cbData;
615	}
616	else
617	rc = VERR_NO_MEMORY;
618	}
619	if (RT_SUCCESS(rc))
620	{
621	/*
622	* Read the remainder of the data.
623	*/
624	while (offData < cbData)
625	{
626	size_t cbRead;
627	rc = RTTcpRead(pClient->hTcpClient, pbData + offData, cbData - offData, &cbRead);
628	if (RT_FAILURE(rc))
629	break;
630	if (cbRead == 0)
631	{
632	LogRelFunc(("RTTcpRead -> %Rrc / cbRead=0 -> VERR_NET_NOT_CONNECTED (#2)\n", rc));
633	rc = VERR_NET_NOT_CONNECTED;
634	break;
635	}
636
637	offData += cbRead;
638	}
639
640	LogRelFlowFunc(("Header:\n"
641	"%.*Rhxd\n", sizeof(ATSPKTHDR), pbData));
642
643	if ( RT_SUCCESS(rc)
644	&& cbData > sizeof(ATSPKTHDR))
645	LogRelFlowFunc(("Payload:\n"
646	"%.Rhxd\n", RT_MIN(64, cbData - sizeof(ATSPKTHDR)), (uint8_t )pbData + sizeof(ATSPKTHDR)));
647	}
648	}
649	else
650	{
651	LogRelFunc(("Received invalid packet size (%zu)\n", cbData));
652	rc = VERR_NET_PROTOCOL_ERROR;
653	}
654	}
655	if (RT_SUCCESS(rc))
656	*ppPktHdr = (PATSPKTHDR)pbData;
657	else
658	{
659	/*
660	* Deal with errors.
661	*/
662	if (rc == VERR_INTERRUPTED)
663	{
664	/* stash it away for the next call. */
665	pClient->cbTcpStashed = cbData;
666	pClient->cbTcpStashedAlloced = cbDataAlloced;
667	pClient->pbTcpStashed = pbData;
668	}
669	else
670	{
671	RTMemFree(pbData);
672
673	/* assume fatal connection error. */
674	LogRelFunc(("RTTcpRead -> %Rrc -> atsTcpDisconnectClient(%RTsock)\n", rc, pClient->hTcpClient));
675	atsTcpDisconnectClient(pThis, pClient);
676	}
677	}
678
679	LogRelFlowFunc(("pClient=%RTsock, cbData=%zu -> %Rrc\n",
680	pClient->hTcpClient, cbData, rc));
681	return rc;
682	}
683
684	/**
685	* @interface_method_impl{ATSTRANSPORT,pfnPollSetAdd}
686	*/
687	static DECLCALLBACK(int) atsTcpPollSetAdd(PATSTRANSPORTINST pThis, RTPOLLSET hPollSet, PATSTRANSPORTCLIENT pClient, uint32_t idStart)
688	{
689	RT_NOREF(pThis);
690	return RTPollSetAddSocket(hPollSet, pClient->hTcpClient, RTPOLL_EVT_READ \| RTPOLL_EVT_ERROR, idStart);
691	}
692
693	/**
694	* @interface_method_impl{ATSTRANSPORT,pfnPollSetRemove}
695	*/
696	static DECLCALLBACK(int) atsTcpPollSetRemove(PATSTRANSPORTINST pThis, RTPOLLSET hPollSet, PATSTRANSPORTCLIENT pClient, uint32_t idStart)
697	{
698	RT_NOREF(pThis, pClient);
699	return RTPollSetRemove(hPollSet, idStart);
700	}
701
702	/**
703	* @interface_method_impl{ATSTRANSPORT,pfnPollIn}
704	*/
705	static DECLCALLBACK(bool) atsTcpPollIn(PATSTRANSPORTINST pThis, PATSTRANSPORTCLIENT pClient)
706	{
707	RT_NOREF(pThis);
708	int rc = RTTcpSelectOne(pClient->hTcpClient, 0/cMillies/);
709	return RT_SUCCESS(rc);
710	}
711
712	/**
713	* @interface_method_impl{ATSTRANSPORT,pfnTerm}
714	*/
715	static DECLCALLBACK(void) atsTcpTerm(PATSTRANSPORTINST pThis)
716	{
717	LogRelFlowFuncEnter();
718
719	/* Signal thread */
720	if (RTCritSectIsInitialized(&pThis->CritSect))
721	{
722	RTCritSectEnter(&pThis->CritSect);
723	pThis->fStopConnecting = true;
724	RTCritSectLeave(&pThis->CritSect);
725	}
726
727	if (pThis->hThreadConnect != NIL_RTTHREAD)
728	{
729	RTThreadUserSignal(pThis->hThreadConnect);
730	RTTcpClientCancelConnect(&pThis->pConnectCancelCookie);
731	}
732
733	/* Shut down the server (will wake up thread). */
734	if (pThis->pTcpServer)
735	{
736	LogRelFlowFunc(("Destroying server...\n"));
737	int rc = RTTcpServerDestroy(pThis->pTcpServer);
738	if (RT_FAILURE(rc))
739	LogRelFunc(("RTTcpServerDestroy failed with %Rrc", rc));
740	pThis->pTcpServer = NULL;
741	}
742
743	/* Wait for the thread (they should've had some time to quit by now). */
744	atsTcpConnectWaitOnThreads(pThis, 15000);
745
746	LogRelFlowFuncLeave();
747	}
748
749	/**
750	* @interface_method_impl{ATSTRANSPORT,pfnCreate}
751	*/
752	static DECLCALLBACK(int) atsTcpCreate(PATSTRANSPORTINST *ppThis)
753	{
754	PATSTRANSPORTINST pThis = (PATSTRANSPORTINST)RTMemAllocZ(sizeof(ATSTRANSPORTINST));
755	AssertPtrReturn(pThis, VERR_NO_MEMORY);
756
757	int rc = RTCritSectInit(&pThis->CritSect);
758	if (RT_SUCCESS(rc))
759	{
760	*ppThis = pThis;
761	}
762
763	return rc;
764	}
765
766	/**
767	* @interface_method_impl{ATSTRANSPORT,pfnDestroy}
768	*/
769	static DECLCALLBACK(int) atsTcpDestroy(PATSTRANSPORTINST pThis)
770	{
771	/* Finally, clean up the critical section. */
772	if (RTCritSectIsInitialized(&pThis->CritSect))
773	RTCritSectDelete(&pThis->CritSect);
774
775	RTMemFree(pThis);
776
777	return VINF_SUCCESS;
778	}
779
780	/**
781	* @interface_method_impl{ATSTRANSPORT,pfnStart}
782	*/
783	static DECLCALLBACK(int) atsTcpStart(PATSTRANSPORTINST pThis)
784	{
785	int rc = VINF_SUCCESS;
786
787	if (pThis->enmConnMode != ATSCONNMODE_CLIENT)
788	{
789	rc = RTTcpServerCreateEx(pThis->szBindAddr[0] ? pThis->szBindAddr : NULL, pThis->uBindPort, &pThis->pTcpServer);
790	if (RT_FAILURE(rc))
791	{
792	if (rc == VERR_NET_DOWN)
793	{
794	LogRelFunc(("RTTcpServerCreateEx(%s, %u,) failed: %Rrc, retrying for 20 seconds...\n",
795	pThis->szBindAddr[0] ? pThis->szBindAddr : NULL, pThis->uBindPort, rc));
796	uint64_t StartMs = RTTimeMilliTS();
797	do
798	{
799	RTThreadSleep(1000);
800	rc = RTTcpServerCreateEx(pThis->szBindAddr[0] ? pThis->szBindAddr : NULL, pThis->uBindPort, &pThis->pTcpServer);
801	} while ( rc == VERR_NET_DOWN
802	&& RTTimeMilliTS() - StartMs < 20000);
803	if (RT_SUCCESS(rc))
804	LogRelFunc(("RTTcpServerCreateEx succceeded\n"));
805	}
806
807	if (RT_FAILURE(rc))
808	{
809	LogRelFunc(("RTTcpServerCreateEx(%s, %u,) failed: %Rrc\n",
810	pThis->szBindAddr[0] ? pThis->szBindAddr : NULL, pThis->uBindPort, rc));
811	}
812	}
813	}
814
815	return rc;
816	}
817
818	/**
819	* @interface_method_impl{ATSTRANSPORT,pfnOption}
820	*/
821	static DECLCALLBACK(int) atsTcpOption(PATSTRANSPORTINST pThis, int ch, PCRTGETOPTUNION pVal)
822	{
823	int rc;
824
825	switch (ch)
826	{
827	case ATSTCPOPT_CONN_MODE:
828	pThis->enmConnMode = (ATSCONNMODE)pVal->u32;
829	return VINF_SUCCESS;
830
831	case ATSTCPOPT_BIND_ADDRESS:
832	rc = RTStrCopy(pThis->szBindAddr, sizeof(pThis->szBindAddr), pVal->psz);
833	if (RT_FAILURE(rc))
834	return RTMsgErrorRc(VERR_INVALID_PARAMETER, "TCP bind address is too long (%Rrc)", rc);
835	if (!pThis->szBindAddr[0])
836	return RTMsgErrorRc(VERR_INVALID_PARAMETER, "No TCP bind address specified: %s", pThis->szBindAddr);
837	return VINF_SUCCESS;
838
839	case ATSTCPOPT_BIND_PORT:
840	pThis->uBindPort = pVal->u16;
841	return VINF_SUCCESS;
842
843	case ATSTCPOPT_CONNECT_ADDRESS:
844	rc = RTStrCopy(pThis->szConnectAddr, sizeof(pThis->szConnectAddr), pVal->psz);
845	if (RT_FAILURE(rc))
846	return RTMsgErrorRc(VERR_INVALID_PARAMETER, "TCP connect address is too long (%Rrc)", rc);
847	if (!pThis->szConnectAddr[0])
848	return RTMsgErrorRc(VERR_INVALID_PARAMETER, "No TCP connect address specified");
849	return VINF_SUCCESS;
850
851	case ATSTCPOPT_CONNECT_PORT:
852	pThis->uConnectPort = pVal->u16;
853	return VINF_SUCCESS;
854
855	default:
856	break;
857	}
858	return VERR_TRY_AGAIN;
859	}
860
861	/**
862	* @interface_method_impl{ATSTRANSPORT,pfnUsage}
863	*/
864	DECLCALLBACK(void) atsTcpUsage(PRTSTREAM pStream)
865	{
866	RTStrmPrintf(pStream,
867	" --tcp-conn-mode <0=both\|1=client\|2=server>\n"
868	" Selects the connection mode.\n"
869	" Default: 0 (both)\n"
870	" --tcp-bind-addr[ess] <address>\n"
871	" The address(es) to listen to TCP connection on. Empty string\n"
872	" means any address, this is the default.\n"
873	" --tcp-bind-port <port>\n"
874	" The port to listen to TCP connections on.\n"
875	" Default: %u\n"
876	" --tcp-connect-addr[ess] <address>\n"
877	" The address of the server to try connect to in client mode.\n"
878	" Default: " ATS_TCP_DEF_CONNECT_GUEST_STR "\n"
879	" --tcp-connect-port <port>\n"
880	" The port on the server to connect to in client mode.\n"
881	" Default: %u\n"
882	, ATS_TCP_DEF_BIND_PORT_GUEST, ATS_TCP_DEF_CONNECT_PORT_GUEST);
883	}
884
885	/** Command line options for the TCP/IP transport layer. */
886	static const RTGETOPTDEF g_TcpOpts[] =
887	{
888	{ "--tcp-conn-mode", ATSTCPOPT_CONN_MODE, RTGETOPT_REQ_STRING },
889	{ "--tcp-bind-addr", ATSTCPOPT_BIND_ADDRESS, RTGETOPT_REQ_STRING },
890	{ "--tcp-bind-address", ATSTCPOPT_BIND_ADDRESS, RTGETOPT_REQ_STRING },
891	{ "--tcp-bind-port", ATSTCPOPT_BIND_PORT, RTGETOPT_REQ_UINT16 },
892	{ "--tcp-connect-addr", ATSTCPOPT_CONNECT_ADDRESS, RTGETOPT_REQ_STRING },
893	{ "--tcp-connect-address", ATSTCPOPT_CONNECT_ADDRESS, RTGETOPT_REQ_STRING },
894	{ "--tcp-connect-port", ATSTCPOPT_CONNECT_PORT, RTGETOPT_REQ_UINT16 }
895	};
896
897	/** TCP/IP transport layer. */
898	const ATSTRANSPORT g_TcpTransport =
899	{
900	/* .szName = */ "tcp",
901	/* .pszDesc = */ "TCP/IP",
902	/* .cOpts = */ &g_TcpOpts[0],
903	/* .paOpts = */ RT_ELEMENTS(g_TcpOpts),
904	/* .pfnUsage = */ atsTcpUsage,
905	/* .pfnCreate = */ atsTcpCreate,
906	/* .pfnDestroy = */ atsTcpDestroy,
907	/* .pfnOption = */ atsTcpOption,
908	/* .pfnStart = */ atsTcpStart,
909	/* .pfnTerm = */ atsTcpTerm,
910	/* .pfnWaitForConnect = */ atsTcpWaitForConnect,
911	/* .pfnPollIn = */ atsTcpPollIn,
912	/* .pfnPollSetAdd = */ atsTcpPollSetAdd,
913	/* .pfnPollSetRemove = */ atsTcpPollSetRemove,
914	/* .pfnRecvPkt = */ atsTcpRecvPkt,
915	/* .pfnSendPkt = */ atsTcpSendPkt,
916	/* .pfnBabble = */ atsTcpBabble,
917	/* .pfnNotifyHowdy = */ atsTcpNotifyHowdy,
918	/* .pfnNotifyBye = */ atsTcpNotifyBye,
919	/* .pfnNotifyReboot = */ atsTcpNotifyReboot,
920	/* .u32EndMarker = */ UINT32_C(0x12345678)
921	};
922

Note: See TracBrowser for help on using the repository browser.

source: vbox/trunk/src/VBox/Devices/Audio/AudioTestServiceTcp.cpp@ 91071

Download in other formats: