NetPerf.cpp@ 72293

Last change on this file since 72293 was 70404, checked in by vboxsync, 7 years ago
NetPerf: Added --verbose option.
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1	/* $Id: NetPerf.cpp 70404 2018-01-01 15:30:25Z vboxsync $ */
2	/** @file
3	* NetPerf - Network Performance Benchmark.
4	*/
5
6	/*
7	* Copyright (C) 2010-2017 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	* The contents of this file may alternatively be used under the terms
18	* of the Common Development and Distribution License Version 1.0
19	* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20	* VirtualBox OSE distribution, in which case the provisions of the
21	* CDDL are applicable instead of those of the GPL.
22	*
23	* You may elect to license modified versions of this file under the
24	* terms and conditions of either the GPL or the CDDL or both.
25	*/
26
27
28	/*********************************************************************************************************************************
29	* Header Files *
30	*********************************************************************************************************************************/
31	#include <iprt/asm.h>
32	#include <iprt/assert.h>
33	#include <iprt/ctype.h>
34	#include <iprt/err.h>
35	#include <iprt/getopt.h>
36	#include <iprt/initterm.h>
37	#include <iprt/mem.h>
38	#include <iprt/message.h>
39	#include <iprt/path.h>
40	#include <iprt/param.h>
41	#include <iprt/process.h>
42	#include <iprt/rand.h>
43	#include <iprt/stream.h>
44	#include <iprt/string.h>
45	#include <iprt/tcp.h>
46	#include <iprt/thread.h>
47	#include <iprt/test.h>
48	#include <iprt/time.h>
49	#include <iprt/timer.h>
50
51
52	/*********************************************************************************************************************************
53	* Defined Constants And Macros *
54	*********************************************************************************************************************************/
55	/** Default TCP port (update help text if you change this) */
56	#define NETPERF_DEFAULT_PORT 5002
57
58	/** Default TCP packet size (bytes) */
59	#define NETPERF_DEFAULT_PKT_SIZE_THROUGHPUT 8192
60	/** Default TCP packet size (bytes) */
61	#define NETPERF_DEFAULT_PKT_SIZE_LATENCY 1024
62	/** Maximum packet size possible (bytes). */
63	#define NETPERF_MAX_PKT_SIZE _1M
64	/** Minimum packet size possible (bytes). */
65	#define NETPERF_MIN_PKT_SIZE sizeof(NETPERFHDR)
66
67	/** Default timeout in (seconds) */
68	#define NETPERF_DEFAULT_TIMEOUT 10
69	/** Maximum timeout possible (seconds). */
70	#define NETPERF_MAX_TIMEOUT 3600 /* 1h */
71	/** Minimum timeout possible (seconds). */
72	#define NETPERF_MIN_TIMEOUT 1
73
74	/** The default warmup time (ms). */
75	#define NETPERF_DEFAULT_WARMUP 1000 /* 1s */
76	/** The maxium warmup time (ms). */
77	#define NETPERF_MAX_WARMUP 60000 /* 60s */
78	/** The minimum warmup time (ms). */
79	#define NETPERF_MIN_WARMUP 1000 /* 1s */
80
81	/** The default cool down time (ms). */
82	#define NETPERF_DEFAULT_COOL_DOWN 1000 /* 1s */
83	/** The maxium cool down time (ms). */
84	#define NETPERF_MAX_COOL_DOWN 60000 /* 60s */
85	/** The minimum cool down time (ms). */
86	#define NETPERF_MIN_COOL_DOWN 1000 /* 1s */
87
88	/** The length of the length prefix used when submitting parameters and
89	* results. */
90	#define NETPERF_LEN_PREFIX 4
91
92
93	/*********************************************************************************************************************************
94	* Structures and Typedefs *
95	*********************************************************************************************************************************/
96	typedef enum NETPERFPROTO
97	{
98	NETPERFPROTO_INVALID = 0,
99	NETPERFPROTO_TCP
100	//NETPERFPROTO_UDP
101	} NETPERFPROTO;
102
103	/**
104	* What kind of test we're performing.
105	*/
106	typedef enum NETPERFMODE
107	{
108	NETPERFMODE_INVALID = 0,
109	/** Latency of a symmetric packet exchange. */
110	NETPERFMODE_LATENCY,
111	/** Separate throughput measurements for each direction. */
112	NETPERFMODE_THROUGHPUT,
113	/** Transmit throughput. */
114	NETPERFMODE_THROUGHPUT_XMIT,
115	/** Transmit throughput. */
116	NETPERFMODE_THROUGHPUT_RECV
117	} NETPERFMODE;
118
119	/**
120	* Statistics.
121	*/
122	typedef struct NETPERFSTATS
123	{
124	uint64_t cTx;
125	uint64_t cRx;
126	uint64_t cEchos;
127	uint64_t cErrors;
128	uint64_t cNsElapsed;
129	} NETPERFSTATS;
130
131	/**
132	* Settings & a little bit of state.
133	*/
134	typedef struct NETPERFPARAMS
135	{
136	/** @name Static settings
137	* @{ */
138	/** The TCP port number. */
139	uint32_t uPort;
140	/** Client: Use server statistcs. */
141	bool fServerStats;
142	/** Server: Quit after the first client. */
143	bool fSingleClient;
144	/** @} */
145
146	/** @name Dynamic settings
147	* @{ */
148	/** Disable send packet coalescing. */
149	bool fNoDelay;
150	/** Detect broken payloads. */
151	bool fCheckData;
152	/** The test mode. */
153	NETPERFMODE enmMode;
154	/** The number of seconds to run each of the test steps. */
155	uint32_t cSecTimeout;
156	/** Number of millisecond to spend warning up before testing. */
157	uint32_t cMsWarmup;
158	/** Number of millisecond to spend cooling down after the testing. */
159	uint32_t cMsCoolDown;
160	/** The packet size. */
161	uint32_t cbPacket;
162	/** @} */
163
164	/** @name State
165	* @{ */
166	RTSOCKET hSocket;
167	/** @} */
168	} NETPERFPARAMS;
169
170	/**
171	* Packet header used in tests.
172	*
173	* Need to indicate when we've timed out and it's time to reverse the roles or
174	* stop testing.
175	*/
176	typedef struct NETPERFHDR
177	{
178	/** Magic value (little endian). */
179	uint32_t u32Magic;
180	/** State value. */
181	uint32_t u32State;
182	/** Sequence number (little endian). */
183	uint32_t u32Seq;
184	/** Reserved, must be zero. */
185	uint32_t u32Reserved;
186	} NETPERFHDR;
187
188	/** Magic value for NETPERFHDR::u32Magic. */
189	#define NETPERFHDR_MAGIC UINT32_C(0xfeedf00d)
190
191	/** @name Packet State (NETPERF::u32Magic)
192	* @{ */
193	/** Warm up. */
194	#define NETPERFHDR_WARMUP UINT32_C(0x0c0ffe01)
195	/** The clock is running. */
196	#define NETPERFHDR_TESTING UINT32_C(0x0c0ffe02)
197	/** Stop the clock but continue the package flow. */
198	#define NETPERFHDR_COOL_DOWN UINT32_C(0x0c0ffe03)
199	/** Done, stop the clock if not done already and reply with results. */
200	#define NETPERFHDR_DONE UINT32_C(0x0c0ffe04)
201	/** @} */
202
203
204	/*********************************************************************************************************************************
205	* Global Variables *
206	*********************************************************************************************************************************/
207	/** Connection start/identifier to make sure other end is NetPerf. */
208	static const char g_ConnectStart[] = "yo! waaazzzzzaaaaup dude?";
209	/** Start of parameters proposal made by the client. */
210	static const char g_szStartParams[] = "deal?";
211	/** All okay to start test */
212	static const char g_szAck[] = "okay!";
213	/** Negative. */
214	static const char g_szNegative[] = "nope!";
215	AssertCompile(sizeof(g_szAck) == sizeof(g_szNegative));
216	/** Start of statistics. */
217	static const char g_szStartStats[] = "dude, stats";
218
219	/** Command line parameters */
220	static const RTGETOPTDEF g_aCmdOptions[] =
221	{
222	{ "--server", 's', RTGETOPT_REQ_NOTHING },
223	{ "--client", 'c', RTGETOPT_REQ_STRING },
224	{ "--interval", 'i', RTGETOPT_REQ_UINT32 },
225	{ "--port", 'p', RTGETOPT_REQ_UINT32 },
226	{ "--len", 'l', RTGETOPT_REQ_UINT32 },
227	{ "--nodelay", 'N', RTGETOPT_REQ_NOTHING },
228	{ "--mode", 'm', RTGETOPT_REQ_STRING },
229	{ "--warmpup", 'w', RTGETOPT_REQ_UINT32 },
230	{ "--cool-down", 'W', RTGETOPT_REQ_UINT32 },
231	{ "--server-stats", 'S', RTGETOPT_REQ_NOTHING },
232	{ "--single-client", '1', RTGETOPT_REQ_NOTHING },
233	{ "--daemonize", 'd', RTGETOPT_REQ_NOTHING },
234	{ "--daemonized", 'D', RTGETOPT_REQ_NOTHING },
235	{ "--check-data", 'C', RTGETOPT_REQ_NOTHING },
236	{ "--verbose", 'v', RTGETOPT_REQ_NOTHING },
237	{ "--help", 'h', RTGETOPT_REQ_NOTHING } /* for Usage() */
238	};
239
240	/** The test handle. */
241	static RTTEST g_hTest;
242	/** Verbosity level. */
243	static uint32_t g_uVerbosity = 0;
244
245
246
247	static void Usage(PRTSTREAM pStrm)
248	{
249	char szExec[RTPATH_MAX];
250	RTStrmPrintf(pStrm, "usage: %s <-s\|-c <host>> [options]\n",
251	RTPathFilename(RTProcGetExecutablePath(szExec, sizeof(szExec))));
252	RTStrmPrintf(pStrm, "\n");
253	RTStrmPrintf(pStrm, "options: \n");
254
255
256	for (unsigned i = 0; i < RT_ELEMENTS(g_aCmdOptions); i++)
257	{
258	const char *pszHelp;
259	switch (g_aCmdOptions[i].iShort)
260	{
261	case 'h':
262	pszHelp = "Displays this help and exit";
263	break;
264	case 's':
265	pszHelp = "Run in server mode, waiting for clients (default)";
266	break;
267	case 'c':
268	pszHelp = "Run in client mode, connecting to <host>";
269	break;
270	case 'i':
271	pszHelp = "Interval in seconds to run the test (default " RT_XSTR(NETPERF_DEFAULT_TIMEOUT) " s)";
272	break;
273	case 'p':
274	pszHelp = "Server port to listen/connect to (default " RT_XSTR(NETPERF_DEFAULT_PORT) ")";
275	break;
276	case 'l':
277	pszHelp = "Packet size in bytes (defaults to " RT_XSTR(NETPERF_DEFAULT_PKT_SIZE_LATENCY)
278	" for latency and " RT_XSTR(NETPERF_DEFAULT_PKT_SIZE_THROUGHPUT) " for throughput)";
279	break;
280	case 'm':
281	pszHelp = "Test mode: latency (default), throughput, throughput-xmit or throughput-recv";
282	break;
283	case 'N':
284	pszHelp = "Set TCP no delay, disabling Nagle's algorithm";
285	break;
286	case 'S':
287	pszHelp = "Report server stats, ignored if server";
288	break;
289	case '1':
290	pszHelp = "Stop the server after the first client";
291	break;
292	case 'd':
293	pszHelp = "Daemonize if server, ignored if client";
294	break;
295	case 'D':
296	continue; /* internal */
297	case 'w':
298	pszHelp = "Warmup time, in milliseconds (default " RT_XSTR(NETPERF_DEFAULT_WARMPUP) " ms)";
299	break;
300	case 'W':
301	pszHelp = "Cool down time, in milliseconds (default " RT_XSTR(NETPERF_DEFAULT_COOL_DOWN) " ms)";
302	break;
303	case 'C':
304	pszHelp = "Check payload data at the receiving end";
305	break;
306	case 'v':
307	pszHelp = "Verbose execution.";
308	break;
309	default:
310	pszHelp = "Option undocumented";
311	break;
312	}
313	char szOpt[256];
314	RTStrPrintf(szOpt, sizeof(szOpt), "%s, -%c", g_aCmdOptions[i].pszLong, g_aCmdOptions[i].iShort);
315	RTStrmPrintf(pStrm, " %-20s%s\n", szOpt, pszHelp);
316	}
317	}
318
319	/**
320	* Timer callback employed to set the stop indicator.
321	*
322	* This is used both by the client and server side.
323	*
324	* @param hTimer The timer, ignored.
325	* @param pvUser Pointer to the stop variable.
326	* @param iTick The tick, ignored.
327	*/
328	static DECLCALLBACK(void) netperfStopTimerCallback(RTTIMERLR hTimer, void *pvUser, uint64_t iTick)
329	{
330	bool volatile pfStop = (bool volatile )pvUser;
331	if (g_uVerbosity > 0)
332	RTPrintf("Time's Up!\n");
333	ASMAtomicWriteBool(pfStop, true);
334	NOREF(hTimer); NOREF(iTick);
335	}
336
337	/**
338	* Sends a statistics packet to our peer.
339	*
340	* @returns IPRT status code.
341	* @param pStats The stats to send.
342	* @param hSocket The TCP socket to send them to.
343	*/
344	static int netperfSendStats(NETPERFSTATS const *pStats, RTSOCKET hSocket)
345	{
346	char szBuf[256 + NETPERF_LEN_PREFIX];
347	size_t cch = RTStrPrintf(&szBuf[NETPERF_LEN_PREFIX], sizeof(szBuf) - NETPERF_LEN_PREFIX,
348	"%s:%llu:%llu:%llu:%llu:%llu",
349	g_szStartStats,
350	pStats->cTx,
351	pStats->cRx,
352	pStats->cEchos,
353	pStats->cErrors,
354	pStats->cNsElapsed);
355
356	RTStrPrintf(szBuf, NETPERF_LEN_PREFIX + 1, "%0*u", NETPERF_LEN_PREFIX, cch);
357	szBuf[NETPERF_LEN_PREFIX] = g_szStartStats[0];
358	Assert(strlen(szBuf) == cch + NETPERF_LEN_PREFIX);
359
360	int rc = RTTcpWrite(hSocket, szBuf, cch + NETPERF_LEN_PREFIX);
361	if (RT_FAILURE(rc))
362	return RTTestIFailedRc(rc, "stats: Failed to send stats: %Rrc\n", rc);
363
364	/*
365	* Wait for ACK.
366	*/
367	rc = RTTcpRead(hSocket, szBuf, sizeof(g_szAck) - 1, NULL);
368	if (RT_FAILURE(rc))
369	return RTTestIFailedRc(rc, "stats: failed to write stats: %Rrc\n", rc);
370	szBuf[sizeof(g_szAck) - 1] = '\0';
371	if (!strcmp(szBuf, g_szNegative))
372	return RTTestIFailedRc(rc, "stats: client failed to parse them\n");
373	if (strcmp(szBuf, g_szAck))
374	return RTTestIFailedRc(rc, "stats: got '%s' in instead of ack/nack\n", szBuf);
375
376	return VINF_SUCCESS;
377	}
378
379	/**
380	* Receives a statistics packet from our peer.
381	*
382	* @returns IPRT status code. Error signalled.
383	* @param pStats Where to receive the stats.
384	* @param hSocket The TCP socket to recevie them from.
385	*/
386	static int netperfRecvStats(NETPERFSTATS *pStats, RTSOCKET hSocket)
387	{
388	/*
389	* Read the stats message.
390	*/
391	/* the length prefix */
392	char szBuf[256 + NETPERF_LEN_PREFIX];
393	int rc = RTTcpRead(hSocket, szBuf, NETPERF_LEN_PREFIX, NULL);
394	if (RT_FAILURE(rc))
395	return RTTestIFailedRc(rc, "stats: failed to read stats prefix: %Rrc\n", rc);
396
397	szBuf[NETPERF_LEN_PREFIX] = '\0';
398	uint32_t cch;
399	rc = RTStrToUInt32Full(szBuf, 10, &cch);
400	if (rc != VINF_SUCCESS)
401	return RTTestIFailedRc(RT_SUCCESS(rc) ? -rc : rc, "stats: bad stat length prefix: '%s' - %Rrc\n", szBuf, rc);
402	if (cch >= sizeof(szBuf))
403	return RTTestIFailedRc(VERR_BUFFER_OVERFLOW, "stats: too large: %u bytes\n", cch);
404
405	/* the actual message */
406	rc = RTTcpRead(hSocket, szBuf, cch, NULL);
407	if (RT_FAILURE(rc))
408	return RTTestIFailedRc(rc, "failed to read stats: %Rrc\n", rc);
409	szBuf[cch] = '\0';
410
411	/*
412	* Validate the message header.
413	*/
414	if ( strncmp(szBuf, g_szStartStats, sizeof(g_szStartStats) - 1)
415	\|\| szBuf[sizeof(g_szStartStats) - 1] != ':')
416	return RTTestIFailedRc(VERR_NET_PROTOCOL_ERROR, "stats: invalid packet start: '%s'\n", szBuf);
417	char *pszCur = &szBuf[sizeof(g_szStartStats)];
418
419	/*
420	* Parse it.
421	*/
422	static const char * const s_apszNames[] =
423	{
424	"cTx", "cRx", "cEchos", "cErrors", "cNsElapsed"
425	};
426	uint64_t *apu64[RT_ELEMENTS(s_apszNames)] =
427	{
428	&pStats->cTx,
429	&pStats->cRx,
430	&pStats->cEchos,
431	&pStats->cErrors,
432	&pStats->cNsElapsed
433	};
434
435	for (unsigned i = 0; i < RT_ELEMENTS(apu64); i++)
436	{
437	if (!pszCur)
438	return RTTestIFailedRc(VERR_PARSE_ERROR, "stats: missing %s\n", s_apszNames[i]);
439
440	char *pszNext = strchr(pszCur, ':');
441	if (pszNext)
442	*pszNext++ = '\0';
443	rc = RTStrToUInt64Full(pszCur, 10, apu64[i]);
444	if (rc != VINF_SUCCESS)
445	return RTTestIFailedRc(RT_SUCCESS(rc) ? -rc : rc, "stats: bad value for %s: '%s' - %Rrc\n",
446	s_apszNames[i], pszCur, rc);
447
448	pszCur = pszNext;
449	}
450
451	if (pszCur)
452	return RTTestIFailedRc(VERR_PARSE_ERROR, "stats: Unparsed data: '%s'\n", pszCur);
453
454	/*
455	* Send ACK.
456	*/
457	rc = RTTcpWrite(hSocket, g_szAck, sizeof(g_szAck) - 1);
458	if (RT_FAILURE(rc))
459	return RTTestIFailedRc(rc, "stats: failed to write ack: %Rrc\n", rc);
460
461	return VINF_SUCCESS;
462	}
463
464	/**
465	* TCP Throughput: Print the statistics.
466	*
467	* @param pSendStats Send stats.
468	* @param pRecvStats Receive stats.
469	* @param cbPacket Packet size.
470	*/
471	static void netperfPrintThroughputStats(NETPERFSTATS const pSendStats, NETPERFSTATS const pRecvStats, uint32_t cbPacket)
472	{
473	RTTestIValue("Packet size", cbPacket, RTTESTUNIT_BYTES);
474
475	if (pSendStats)
476	{
477	double rdSecElapsed = (double)pSendStats->cNsElapsed / 1000000000.0;
478	RTTestIValue("Sends", pSendStats->cTx, RTTESTUNIT_PACKETS);
479	RTTestIValue("Send Interval", pSendStats->cNsElapsed, RTTESTUNIT_NS);
480	RTTestIValue("Send Throughput", (uint64_t)(cbPacket * pSendStats->cTx / rdSecElapsed), RTTESTUNIT_BYTES_PER_SEC);
481	RTTestIValue("Send Rate", (uint64_t)(pSendStats->cTx / rdSecElapsed), RTTESTUNIT_PACKETS_PER_SEC);
482	RTTestIValue("Send Latency", (uint64_t)(rdSecElapsed / pSendStats->cTx * 1000000000.0), RTTESTUNIT_NS_PER_PACKET);
483	}
484
485	if (pRecvStats)
486	{
487	double rdSecElapsed = (double)pRecvStats->cNsElapsed / 1000000000.0;
488	RTTestIValue("Receives", pRecvStats->cRx, RTTESTUNIT_PACKETS);
489	RTTestIValue("Receive Interval", pRecvStats->cNsElapsed, RTTESTUNIT_NS);
490	RTTestIValue("Receive Throughput", (uint64_t)(cbPacket * pRecvStats->cRx / rdSecElapsed), RTTESTUNIT_BYTES_PER_SEC);
491	RTTestIValue("Receive Rate", (uint64_t)(pRecvStats->cRx / rdSecElapsed), RTTESTUNIT_PACKETS_PER_SEC);
492	RTTestIValue("Receive Latency", (uint64_t)(rdSecElapsed / pRecvStats->cRx * 1000000000.0), RTTESTUNIT_NS_PER_PACKET);
493	}
494	}
495
496	/**
497	* TCP Throughput: Send data to the other party.
498	*
499	* @returns IPRT status code.
500	* @param pParams The TCP parameters block.
501	* @param pBuf The buffer we're using when sending.
502	* @param pSendStats Where to return the statistics.
503	*/
504	static int netperfTCPThroughputSend(NETPERFPARAMS const pParams, NETPERFHDR pBuf, NETPERFSTATS *pSendStats)
505	{
506	RT_ZERO(*pSendStats);
507
508	/*
509	* Create the timer
510	*/
511	RTTIMERLR hTimer;
512	bool volatile fStop = false;
513	int rc = RTTimerLRCreateEx(&hTimer, 0 /* nsec /, RTTIMER_FLAGS_CPU_ANY, netperfStopTimerCallback, (void )&fStop);
514	if (RT_SUCCESS(rc))
515	{
516	uint32_t u32Seq = 0;
517
518	RT_BZERO(pBuf, pParams->cbPacket);
519	pBuf->u32Magic = RT_H2LE_U32_C(NETPERFHDR_MAGIC);
520	pBuf->u32State = 0;
521	pBuf->u32Seq = 0;
522	pBuf->u32Reserved = 0;
523
524	/*
525	* Warm up.
526	*/
527	if (g_uVerbosity > 0)
528	RTPrintf("Warmup...\n");
529	pBuf->u32State = RT_H2LE_U32_C(NETPERFHDR_WARMUP);
530	rc = RTTimerLRStart(hTimer, pParams->cMsWarmup * UINT64_C(1000000) /* nsec */);
531	if (RT_SUCCESS(rc))
532	{
533	while (!fStop)
534	{
535	u32Seq++;
536	pBuf->u32Seq = RT_H2LE_U32(u32Seq);
537	rc = RTTcpWrite(pParams->hSocket, pBuf, pParams->cbPacket);
538	if (RT_FAILURE(rc))
539	{
540	RTTestIFailed("RTTcpWrite/warmup: %Rrc\n", rc);
541	break;
542	}
543	}
544	}
545	else
546	RTTestIFailed("RTTimerLRStart/warmup: %Rrc\n", rc);
547
548	/*
549	* The real thing.
550	*/
551	if (RT_SUCCESS(rc))
552	{
553	if (g_uVerbosity > 0)
554	RTPrintf("The real thing...\n");
555	pBuf->u32State = RT_H2LE_U32_C(NETPERFHDR_TESTING);
556	fStop = false;
557	rc = RTTimerLRStart(hTimer, pParams->cSecTimeout * UINT64_C(1000000000) /* nsec */);
558	if (RT_SUCCESS(rc))
559	{
560	uint64_t u64StartTS = RTTimeNanoTS();
561	while (!fStop)
562	{
563	u32Seq++;
564	pBuf->u32Seq = RT_H2LE_U32(u32Seq);
565	rc = RTTcpWrite(pParams->hSocket, pBuf, pParams->cbPacket);
566	if (RT_FAILURE(rc))
567	{
568	RTTestIFailed("RTTcpWrite/testing: %Rrc\n", rc);
569	break;
570	}
571	pSendStats->cTx++;
572	}
573	pSendStats->cNsElapsed = RTTimeNanoTS() - u64StartTS;
574	}
575	else
576	RTTestIFailed("RTTimerLRStart/testing: %Rrc\n", rc);
577	}
578
579	/*
580	* Cool down.
581	*/
582	if (RT_SUCCESS(rc))
583	{
584	if (g_uVerbosity > 0)
585	RTPrintf("Cool down...\n");
586	pBuf->u32State = RT_H2LE_U32_C(NETPERFHDR_COOL_DOWN);
587	fStop = false;
588	rc = RTTimerLRStart(hTimer, pParams->cMsCoolDown * UINT64_C(1000000) /* nsec */);
589	if (RT_SUCCESS(rc))
590	{
591	while (!fStop)
592	{
593	u32Seq++;
594	pBuf->u32Seq = RT_H2LE_U32(u32Seq);
595	rc = RTTcpWrite(pParams->hSocket, pBuf, pParams->cbPacket);
596	if (RT_FAILURE(rc))
597	{
598	RTTestIFailed("RTTcpWrite/cool down: %Rrc\n", rc);
599	break;
600	}
601	}
602	}
603	else
604	RTTestIFailed("RTTimerLRStart/testing: %Rrc\n", rc);
605	}
606
607	/*
608	* Send DONE packet.
609	*/
610	if (g_uVerbosity > 0)
611	RTPrintf("Done\n");
612	if (RT_SUCCESS(rc))
613	{
614	u32Seq++;
615	pBuf->u32Seq = RT_H2LE_U32(u32Seq);
616	pBuf->u32State = RT_H2LE_U32_C(NETPERFHDR_DONE);
617	rc = RTTcpWrite(pParams->hSocket, pBuf, pParams->cbPacket);
618	if (RT_FAILURE(rc))
619	RTTestIFailed("RTTcpWrite/done: %Rrc\n", rc);
620	}
621
622	RTTimerLRDestroy(hTimer);
623	}
624	else
625	RTTestIFailed("Failed to create timer object: %Rrc\n", rc);
626	return rc;
627	}
628
629
630	/**
631	* TCP Throughput: Receive data from the other party.
632	*
633	* @returns IPRT status code.
634	* @param pParams The TCP parameters block.
635	* @param pBuf The buffer we're using when sending.
636	* @param pStats Where to return the statistics.
637	*/
638	static int netperfTCPThroughputRecv(NETPERFPARAMS const pParams, NETPERFHDR pBuf, NETPERFSTATS *pStats)
639	{
640	RT_ZERO(*pStats);
641
642	int rc;
643	uint32_t u32Seq = 0;
644	uint64_t cRx = 0;
645	uint64_t u64StartTS = 0;
646	uint32_t uState = RT_H2LE_U32_C(NETPERFHDR_WARMUP);
647
648	for (;;)
649	{
650	rc = RTTcpRead(pParams->hSocket, pBuf, pParams->cbPacket, NULL);
651	if (RT_FAILURE(rc))
652	{
653	pStats->cErrors++;
654	RTTestIFailed("RTTcpRead failed: %Rrc\n", rc);
655	break;
656	}
657	if (RT_UNLIKELY( pBuf->u32Magic != RT_H2LE_U32_C(NETPERFHDR_MAGIC)
658	\|\| pBuf->u32Reserved != 0))
659	{
660	pStats->cErrors++;
661	RTTestIFailed("Invalid magic or reserved field value: %#x %#x\n", RT_H2LE_U32(pBuf->u32Magic), RT_H2LE_U32(pBuf->u32Reserved));
662	rc = VERR_INVALID_MAGIC;
663	break;
664	}
665
666	u32Seq += 1;
667	if (RT_UNLIKELY(pBuf->u32Seq != RT_H2LE_U32(u32Seq)))
668	{
669	pStats->cErrors++;
670	RTTestIFailed("Out of sequence: got %#x, expected %#x\n", RT_H2LE_U32(pBuf->u32Seq), u32Seq);
671	rc = VERR_WRONG_ORDER;
672	break;
673	}
674
675	if (pParams->fCheckData && uState == RT_H2LE_U32_C(NETPERFHDR_TESTING))
676	{
677	unsigned i = sizeof(NETPERFHDR);
678	for (;i < pParams->cbPacket; ++i)
679	if (((unsigned char *)pBuf)[i])
680	break;
681	if (i != pParams->cbPacket)
682	{
683	pStats->cErrors++;
684	RTTestIFailed("Broken payload: at %#x got %#x, expected %#x\n", i, ((unsigned char *)pBuf)[i], 0);
685	rc = VERR_NOT_EQUAL;
686	break;
687	}
688	}
689	if (RT_LIKELY(pBuf->u32State == uState))
690	cRx++;
691	/*
692	* Validate and act on switch state.
693	*/
694	else if ( uState == RT_H2LE_U32_C(NETPERFHDR_WARMUP)
695	&& pBuf->u32State == RT_H2LE_U32_C(NETPERFHDR_TESTING))
696	{
697	cRx = 0;
698	u64StartTS = RTTimeNanoTS();
699	uState = pBuf->u32State;
700	}
701	else if ( uState == RT_H2LE_U32_C(NETPERFHDR_TESTING)
702	&& ( pBuf->u32State == RT_H2LE_U32_C(NETPERFHDR_COOL_DOWN)
703	\|\| pBuf->u32State == RT_H2LE_U32_C(NETPERFHDR_DONE)) )
704	{
705	pStats->cNsElapsed = RTTimeNanoTS() - u64StartTS;
706	pStats->cRx = cRx + 1;
707	uState = pBuf->u32State;
708	if (uState == RT_H2LE_U32_C(NETPERFHDR_DONE))
709	break;
710	}
711	else if ( uState == RT_H2LE_U32_C(NETPERFHDR_COOL_DOWN)
712	&& pBuf->u32State == RT_H2LE_U32_C(NETPERFHDR_DONE))
713	{
714	uState = pBuf->u32State;
715	break;
716	}
717	else
718	{
719	pStats->cErrors++;
720	RTTestIFailed("Protocol error: invalid state transition %#x -> %#x\n",
721	RT_LE2H_U32(uState), RT_LE2H_U32(pBuf->u32State));
722	rc = VERR_INVALID_MAGIC;
723	break;
724	}
725	}
726
727	AssertReturn(uState == RT_H2LE_U32_C(NETPERFHDR_DONE) \|\| RT_FAILURE(rc), VERR_INVALID_STATE);
728	return rc;
729	}
730
731
732	/**
733	* Prints the statistics for the latency test.
734	*
735	* @param pStats The statistics.
736	* @param cbPacket The packet size in bytes.
737	*/
738	static void netperfPrintLatencyStats(NETPERFSTATS const *pStats, uint32_t cbPacket)
739	{
740	double rdSecElapsed = (double)pStats->cNsElapsed / 1000000000.0;
741	RTTestIValue("Transmitted", pStats->cTx, RTTESTUNIT_PACKETS);
742	RTTestIValue("Successful echos", pStats->cEchos, RTTESTUNIT_PACKETS);
743	RTTestIValue("Errors", pStats->cErrors, RTTESTUNIT_PACKETS);
744	RTTestIValue("Interval", pStats->cNsElapsed, RTTESTUNIT_NS);
745	RTTestIValue("Packet size", cbPacket, RTTESTUNIT_BYTES);
746	RTTestIValue("Average rate", (uint64_t)(pStats->cEchos / rdSecElapsed), RTTESTUNIT_PACKETS_PER_SEC);
747	RTTestIValue("Average throughput", (uint64_t)(cbPacket * pStats->cEchos / rdSecElapsed), RTTESTUNIT_BYTES_PER_SEC);
748	RTTestIValue("Average latency", (uint64_t)(rdSecElapsed / pStats->cEchos * 1000000000.0), RTTESTUNIT_NS_PER_ROUND_TRIP);
749	RTTestISubDone();
750	}
751
752
753	/**
754	* NETPERFMODE -> string.
755	*
756	* @returns readonly string.
757	* @param enmMode The mode.
758	*/
759	static const char *netperfModeToString(NETPERFMODE enmMode)
760	{
761	switch (enmMode)
762	{
763	case NETPERFMODE_LATENCY: return "latency";
764	case NETPERFMODE_THROUGHPUT: return "throughput";
765	case NETPERFMODE_THROUGHPUT_XMIT: return "throughput-xmit";
766	case NETPERFMODE_THROUGHPUT_RECV: return "throughput-recv";
767	default: AssertFailed(); return "internal-error";
768	}
769	}
770
771	/**
772	* String -> NETPERFMODE.
773	*
774	* @returns The corresponding NETPERFMODE, NETPERFMODE_INVALID on failure.
775	* @param pszMode The mode string.
776	*/
777	static NETPERFMODE netperfModeFromString(const char *pszMode)
778	{
779	if (!strcmp(pszMode, "latency"))
780	return NETPERFMODE_LATENCY;
781	if ( !strcmp(pszMode, "throughput")
782	\|\| !strcmp(pszMode, "thruput") )
783	return NETPERFMODE_THROUGHPUT;
784	if ( !strcmp(pszMode, "throughput-xmit")
785	\|\| !strcmp(pszMode, "thruput-xmit")
786	\|\| !strcmp(pszMode, "xmit") )
787	return NETPERFMODE_THROUGHPUT_XMIT;
788	if ( !strcmp(pszMode, "throughput-recv")
789	\|\| !strcmp(pszMode, "thruput-recv")
790	\|\| !strcmp(pszMode, "recv") )
791	return NETPERFMODE_THROUGHPUT_RECV;
792	return NETPERFMODE_INVALID;
793	}
794
795
796
797
798
799	/**
800	* TCP Server: Throughput test.
801	*
802	* @returns IPRT status code.
803	* @param pParams The parameters to use for this test.
804	*/
805	static int netperfTCPServerDoThroughput(NETPERFPARAMS const *pParams)
806	{
807	/*
808	* Allocate the buffer.
809	*/
810	NETPERFHDR pBuf = (NETPERFHDR )RTMemAllocZ(pParams->cbPacket);
811	if (!pBuf)
812	return RTTestIFailedRc(VERR_NO_MEMORY, "Out of memory");
813
814	/*
815	* Receive first, then Send. The reverse of the client.
816	*/
817	NETPERFSTATS RecvStats;
818	int rc = netperfTCPThroughputRecv(pParams, pBuf, &RecvStats);
819	if (RT_SUCCESS(rc))
820	{
821	rc = netperfSendStats(&RecvStats, pParams->hSocket);
822	if (RT_SUCCESS(rc))
823	{
824	NETPERFSTATS SendStats;
825	rc = netperfTCPThroughputSend(pParams, pBuf, &SendStats);
826	if (RT_SUCCESS(rc))
827	{
828	rc = netperfSendStats(&SendStats, pParams->hSocket);
829	netperfPrintThroughputStats(&SendStats, &RecvStats, pParams->cbPacket);
830	}
831	}
832	}
833
834	return rc;
835	}
836
837	/**
838	* TCP Server: Throughput xmit test (receive from client).
839	*
840	* @returns IPRT status code.
841	* @param pParams The parameters to use for this test.
842	*/
843	static int netperfTCPServerDoThroughputXmit(NETPERFPARAMS const *pParams)
844	{
845	/*
846	* Allocate the buffer.
847	*/
848	NETPERFHDR pBuf = (NETPERFHDR )RTMemAllocZ(pParams->cbPacket);
849	if (!pBuf)
850	return RTTestIFailedRc(VERR_NO_MEMORY, "Out of memory");
851
852	/*
853	* Receive the transmitted data (reverse of client).
854	*/
855	NETPERFSTATS RecvStats;
856	int rc = netperfTCPThroughputRecv(pParams, pBuf, &RecvStats);
857	if (RT_SUCCESS(rc))
858	{
859	rc = netperfSendStats(&RecvStats, pParams->hSocket);
860	if (RT_SUCCESS(rc))
861	netperfPrintThroughputStats(NULL, &RecvStats, pParams->cbPacket);
862	}
863
864	return rc;
865	}
866
867	/**
868	* TCP Server: Throughput recv test (transmit to client).
869	*
870	* @returns IPRT status code.
871	* @param pParams The parameters to use for this test.
872	*/
873	static int netperfTCPServerDoThroughputRecv(NETPERFPARAMS const *pParams)
874	{
875	/*
876	* Allocate the buffer.
877	*/
878	NETPERFHDR pBuf = (NETPERFHDR )RTMemAllocZ(pParams->cbPacket);
879	if (!pBuf)
880	return RTTestIFailedRc(VERR_NO_MEMORY, "Out of memory");
881
882	/*
883	* Send data to the client (reverse of client).
884	*/
885	NETPERFSTATS SendStats;
886	int rc = netperfTCPThroughputSend(pParams, pBuf, &SendStats);
887	if (RT_SUCCESS(rc))
888	{
889	rc = netperfSendStats(&SendStats, pParams->hSocket);
890	if (RT_SUCCESS(rc))
891	netperfPrintThroughputStats(&SendStats, NULL, pParams->cbPacket);
892	}
893
894	return rc;
895	}
896
897	/**
898	* TCP Server: Latency test.
899	*
900	* @returns IPRT status code.
901	* @param pParams The parameters to use for this test.
902	*/
903	static int netperfTCPServerDoLatency(NETPERFPARAMS const *pParams)
904	{
905	NETPERFHDR pBuf = (NETPERFHDR )RTMemAllocZ(pParams->cbPacket);
906	if (!pBuf)
907	return RTTestIFailedRc(VERR_NO_MEMORY, "Failed to allocated packet buffer of %u bytes.\n", pParams->cbPacket);
908
909	/*
910	* Ping pong with client.
911	*/
912	int rc;
913	uint32_t uState = RT_H2LE_U32_C(NETPERFHDR_WARMUP);
914	uint32_t u32Seq = 0;
915	uint64_t cTx = 0;
916	uint64_t cRx = 0;
917	uint64_t u64StartTS = 0;
918	NETPERFSTATS Stats;
919	RT_ZERO(Stats);
920	for (;;)
921	{
922	rc = RTTcpRead(pParams->hSocket, pBuf, pParams->cbPacket, NULL);
923	if (RT_FAILURE(rc))
924	{
925	RTTestIFailed("Failed to read data from client: %Rrc\n", rc);
926	break;
927	}
928
929	/*
930	* Validate the packet
931	*/
932	if (RT_UNLIKELY( pBuf->u32Magic != RT_H2LE_U32_C(NETPERFHDR_MAGIC)
933	\|\| pBuf->u32Reserved != 0))
934	{
935	RTTestIFailed("Invalid magic or reserved field value: %#x %#x\n", RT_H2LE_U32(pBuf->u32Magic), RT_H2LE_U32(pBuf->u32Reserved));
936	rc = VERR_INVALID_MAGIC;
937	break;
938	}
939
940	u32Seq += 1;
941	if (RT_UNLIKELY(pBuf->u32Seq != RT_H2LE_U32(u32Seq)))
942	{
943	RTTestIFailed("Out of sequence: got %#x, expected %#x\n", RT_H2LE_U32(pBuf->u32Seq), u32Seq);
944	rc = VERR_WRONG_ORDER;
945	break;
946	}
947
948	/*
949	* Count the packet if the state remains unchanged.
950	*/
951	if (RT_LIKELY(pBuf->u32State == uState))
952	cRx++;
953	/*
954	* Validate and act on the state transition.
955	*/
956	else if ( uState == RT_H2LE_U32_C(NETPERFHDR_WARMUP)
957	&& pBuf->u32State == RT_H2LE_U32_C(NETPERFHDR_TESTING))
958	{
959	cRx = cTx = 0;
960	u64StartTS = RTTimeNanoTS();
961	uState = pBuf->u32State;
962	}
963	else if ( uState == RT_H2LE_U32_C(NETPERFHDR_TESTING)
964	&& ( pBuf->u32State == RT_H2LE_U32_C(NETPERFHDR_COOL_DOWN)
965	\|\| pBuf->u32State == RT_H2LE_U32_C(NETPERFHDR_DONE)) )
966	{
967	Stats.cNsElapsed = RTTimeNanoTS() - u64StartTS;
968	Stats.cEchos = cTx;
969	Stats.cTx = cTx;
970	Stats.cRx = cRx;
971	uState = pBuf->u32State;
972	if (uState == RT_H2LE_U32_C(NETPERFHDR_DONE))
973	break;
974	}
975	else if ( uState == RT_H2LE_U32_C(NETPERFHDR_COOL_DOWN)
976	&& pBuf->u32State == RT_H2LE_U32_C(NETPERFHDR_DONE))
977	{
978	uState = pBuf->u32State;
979	break;
980	}
981	else
982	{
983	RTTestIFailed("Protocol error: invalid state transition %#x -> %#x\n",
984	RT_LE2H_U32(uState), RT_LE2H_U32(pBuf->u32State));
985	break;
986	}
987
988	/*
989	* Write same data back to client.
990	*/
991	rc = RTTcpWrite(pParams->hSocket, pBuf, pParams->cbPacket);
992	if (RT_FAILURE(rc))
993	{
994	RTTestIFailed("Failed to write data to client: %Rrc\n", rc);
995	break;
996	}
997
998	cTx++;
999	}
1000
1001	/*
1002	* Send stats to client and print them.
1003	*/
1004	if (uState == RT_H2LE_U32_C(NETPERFHDR_DONE))
1005	netperfSendStats(&Stats, pParams->hSocket);
1006
1007	if ( uState == RT_H2LE_U32_C(NETPERFHDR_DONE)
1008	\|\| uState == RT_H2LE_U32_C(NETPERFHDR_COOL_DOWN))
1009	netperfPrintLatencyStats(&Stats, pParams->cbPacket);
1010
1011	RTMemFree(pBuf);
1012	return rc;
1013	}
1014
1015	/**
1016	* Parses the parameters the client has sent us.
1017	*
1018	* @returns IPRT status code. Message has been shown on failure.
1019	* @param pParams The parameter structure to store the parameters
1020	* in.
1021	* @param pszParams The parameter string sent by the client.
1022	*/
1023	static int netperfTCPServerParseParams(NETPERFPARAMS pParams, char pszParams)
1024	{
1025	/*
1026	* Set defaults for the dynamic settings.
1027	*/
1028	pParams->fNoDelay = false;
1029	pParams->enmMode = NETPERFMODE_LATENCY;
1030	pParams->cSecTimeout = NETPERF_DEFAULT_WARMUP;
1031	pParams->cMsCoolDown = NETPERF_DEFAULT_COOL_DOWN;
1032	pParams->cMsWarmup = NETPERF_DEFAULT_WARMUP;
1033	pParams->cbPacket = NETPERF_DEFAULT_PKT_SIZE_LATENCY;
1034
1035	/*
1036	* Parse the client parameters.
1037	*/
1038	/* first arg: transport type. [mandatory] */
1039	char *pszCur = strchr(pszParams, ':');
1040	if (!pszCur)
1041	return RTTestIFailedRc(VERR_PARSE_ERROR, "client params: No colon\n");
1042	char *pszNext = strchr(++pszCur, ':');
1043	if (pszNext)
1044	*pszNext++ = '\0';
1045	if (strcmp(pszCur, "TCP"))
1046	return RTTestIFailedRc(VERR_PARSE_ERROR, "client params: Invalid transport type: \"%s\"\n", pszCur);
1047	pszCur = pszNext;
1048
1049	/* second arg: mode. [mandatory] */
1050	if (!pszCur)
1051	return RTTestIFailedRc(VERR_PARSE_ERROR, "client params: Missing test mode\n");
1052	pszNext = strchr(pszCur, ':');
1053	if (pszNext)
1054	*pszNext++ = '\0';
1055	pParams->enmMode = netperfModeFromString(pszCur);
1056	if (pParams->enmMode == NETPERFMODE_INVALID)
1057	return RTTestIFailedRc(VERR_PARSE_ERROR, "client params: Invalid test mode: \"%s\"\n", pszCur);
1058	pszCur = pszNext;
1059
1060	/*
1061	* The remainder are uint32_t or bool.
1062	*/
1063	struct
1064	{
1065	bool fBool;
1066	bool fMandatory;
1067	void *pvValue;
1068	uint32_t uMin;
1069	uint32_t uMax;
1070	const char *pszName;
1071	} aElements[] =
1072	{
1073	{ false, true, &pParams->cSecTimeout, NETPERF_MIN_TIMEOUT, NETPERF_MAX_TIMEOUT, "timeout" },
1074	{ false, true, &pParams->cbPacket, NETPERF_MIN_PKT_SIZE, NETPERF_MAX_PKT_SIZE, "packet size" },
1075	{ false, true, &pParams->cMsWarmup, NETPERF_MIN_WARMUP, NETPERF_MAX_WARMUP, "warmup period" },
1076	{ false, true, &pParams->cMsCoolDown, NETPERF_MIN_COOL_DOWN, NETPERF_MAX_COOL_DOWN, "cool down period" },
1077	{ true, true, &pParams->fNoDelay, false, true, "no delay" },
1078	};
1079
1080	for (unsigned i = 0; i < RT_ELEMENTS(aElements); i++)
1081	{
1082	if (!pszCur)
1083	return aElements[i].fMandatory
1084	? RTTestIFailedRc(VERR_PARSE_ERROR, "client params: missing %s\n", aElements[i].pszName)
1085	: VINF_SUCCESS;
1086
1087	pszNext = strchr(pszCur, ':');
1088	if (pszNext)
1089	*pszNext++ = '\0';
1090	uint32_t u32;
1091	int rc = RTStrToUInt32Full(pszCur, 10, &u32);
1092	if (rc != VINF_SUCCESS)
1093	return RTTestIFailedRc(VERR_PARSE_ERROR, "client params: bad %s value \"%s\": %Rrc\n",
1094	aElements[i].pszName, pszCur, rc);
1095
1096	if ( u32 < aElements[i].uMin
1097	\|\| u32 > aElements[i].uMax)
1098	return RTTestIFailedRc(VERR_PARSE_ERROR, "client params: %s %u s is out of range (%u..%u)\n",
1099	aElements[i].pszName, u32, aElements[i].uMin, aElements[i].uMax);
1100	if (aElements[i].fBool)
1101	(bool )aElements[i].pvValue = u32 ? true : false;
1102	else
1103	(uint32_t )aElements[i].pvValue = u32;
1104
1105	pszCur = pszNext;
1106	}
1107
1108	/* Fail if too many elements. */
1109	if (pszCur)
1110	return RTTestIFailedRc(VERR_PARSE_ERROR, "client params: too many elements: \"%s\"\n",
1111	pszCur);
1112	return VINF_SUCCESS;
1113	}
1114
1115
1116	/**
1117	* TCP server callback that handles one client connection.
1118	*
1119	* @returns IPRT status code. VERR_TCP_SERVER_STOP is special.
1120	* @param hSocket The client socket.
1121	* @param pvUser Our parameters.
1122	*/
1123	static DECLCALLBACK(int) netperfTCPServerWorker(RTSOCKET hSocket, void *pvUser)
1124	{
1125	NETPERFPARAMS pParams = (NETPERFPARAMS )pvUser;
1126	AssertReturn(pParams, VERR_INVALID_POINTER);
1127
1128	pParams->hSocket = hSocket;
1129
1130	RTNETADDR Addr;
1131	int rc = RTTcpGetPeerAddress(hSocket, &Addr);
1132	if (RT_SUCCESS(rc))
1133	RTTestIPrintf(RTTESTLVL_ALWAYS, "Client connected from %RTnaddr\n", &Addr);
1134	else
1135	{
1136	RTTestIPrintf(RTTESTLVL_ALWAYS, "Failed to get client details: %Rrc\n", rc);
1137	Addr.enmType = RTNETADDRTYPE_INVALID;
1138	}
1139
1140	/*
1141	* Greet the other dude.
1142	*/
1143	rc = RTTcpWrite(hSocket, g_ConnectStart, sizeof(g_ConnectStart) - 1);
1144	if (RT_FAILURE(rc))
1145	return RTTestIFailedRc(rc, "Failed to send connection start Id: %Rrc\n", rc);
1146
1147	/*
1148	* Read connection parameters.
1149	*/
1150	char szBuf[256];
1151	rc = RTTcpRead(hSocket, szBuf, NETPERF_LEN_PREFIX, NULL);
1152	if (RT_FAILURE(rc))
1153	return RTTestIFailedRc(rc, "Failed to read connection parameters: %Rrc\n", rc);
1154	szBuf[NETPERF_LEN_PREFIX] = '\0';
1155	uint32_t cchParams;
1156	rc = RTStrToUInt32Full(szBuf, 10, &cchParams);
1157	if (rc != VINF_SUCCESS)
1158	return RTTestIFailedRc(RT_SUCCESS(rc) ? VERR_INTERNAL_ERROR : rc,
1159	"Failed to read connection parameters: %Rrc\n", rc);
1160	if (cchParams >= sizeof(szBuf))
1161	return RTTestIFailedRc(VERR_TOO_MUCH_DATA, "parameter packet is too big (%u bytes)\n", cchParams);
1162	rc = RTTcpRead(hSocket, szBuf, cchParams, NULL);
1163	if (RT_FAILURE(rc))
1164	return RTTestIFailedRc(rc, "Failed to read connection parameters: %Rrc\n", rc);
1165	szBuf[cchParams] = '\0';
1166
1167	if (strncmp(szBuf, g_szStartParams, sizeof(g_szStartParams) - 1))
1168	return RTTestIFailedRc(VERR_NET_PROTOCOL_ERROR, "Invalid connection parameters '%s'\n", szBuf);
1169
1170	/*
1171	* Parse the parameters and signal whether we've got a deal or not.
1172	*/
1173	rc = netperfTCPServerParseParams(pParams, szBuf);
1174	if (RT_FAILURE(rc))
1175	{
1176	int rc2 = RTTcpWrite(hSocket, g_szNegative, sizeof(g_szNegative) - 1);
1177	if (RT_FAILURE(rc2))
1178	RTTestIFailed("Failed to send negative ack: %Rrc\n", rc2);
1179	return rc;
1180	}
1181
1182	if (Addr.enmType != RTNETADDRTYPE_INVALID)
1183	RTTestISubF("%RTnaddr - %s, %u s, %u bytes", &Addr,
1184	netperfModeToString(pParams->enmMode), pParams->cSecTimeout, pParams->cbPacket);
1185	else
1186	RTTestISubF("Unknown - %s, %u s, %u bytes",
1187	netperfModeToString(pParams->enmMode), pParams->cSecTimeout, pParams->cbPacket);
1188
1189	rc = RTTcpSetSendCoalescing(hSocket, !pParams->fNoDelay);
1190	if (RT_FAILURE(rc))
1191	return RTTestIFailedRc(rc, "Failed to apply no-delay option (%RTbool): %Rrc\n", pParams->fNoDelay, rc);
1192
1193	rc = RTTcpWrite(hSocket, g_szAck, sizeof(g_szAck) - 1);
1194	if (RT_FAILURE(rc))
1195	return RTTestIFailedRc(rc, "Failed to send start test commend to client: %Rrc\n", rc);
1196
1197	/*
1198	* Take action according to our mode.
1199	*/
1200	switch (pParams->enmMode)
1201	{
1202	case NETPERFMODE_LATENCY:
1203	rc = netperfTCPServerDoLatency(pParams);
1204	break;
1205
1206	case NETPERFMODE_THROUGHPUT:
1207	rc = netperfTCPServerDoThroughput(pParams);
1208	break;
1209
1210	case NETPERFMODE_THROUGHPUT_XMIT:
1211	rc = netperfTCPServerDoThroughputXmit(pParams);
1212	break;
1213
1214	case NETPERFMODE_THROUGHPUT_RECV:
1215	rc = netperfTCPServerDoThroughputRecv(pParams);
1216	break;
1217
1218	case NETPERFMODE_INVALID:
1219	rc = VERR_INTERNAL_ERROR;
1220	break;
1221
1222	/* no default! */
1223	}
1224	if (rc == VERR_NO_MEMORY)
1225	return VERR_TCP_SERVER_STOP;
1226
1227	/*
1228	* Wait for other clients or quit.
1229	*/
1230	if (pParams->fSingleClient)
1231	return VERR_TCP_SERVER_STOP;
1232	return VINF_SUCCESS;
1233	}
1234
1235
1236	/**
1237	* TCP server.
1238	*
1239	* @returns IPRT status code.
1240	* @param pParams The TCP parameter block.
1241	*/
1242	static int netperfTCPServer(NETPERFPARAMS *pParams)
1243	{
1244	/*
1245	* Spawn the TCP server thread & listen.
1246	*/
1247	PRTTCPSERVER pServer;
1248	int rc = RTTcpServerCreateEx(NULL, pParams->uPort, &pServer);
1249	if (RT_SUCCESS(rc))
1250	{
1251	RTPrintf("Server listening on TCP port %d\n", pParams->uPort);
1252	rc = RTTcpServerListen(pServer, netperfTCPServerWorker, pParams);
1253	RTTcpServerDestroy(pServer);
1254	}
1255	else
1256	RTPrintf("Failed to create TCP server thread: %Rrc\n", rc);
1257
1258	return rc;
1259	}
1260
1261	/**
1262	* The server part.
1263	*
1264	* @returns Exit code.
1265	* @param enmProto The protocol.
1266	* @param pParams The parameter block.
1267	*/
1268	static RTEXITCODE netperfServer(NETPERFPROTO enmProto, NETPERFPARAMS *pParams)
1269	{
1270
1271	switch (enmProto)
1272	{
1273	case NETPERFPROTO_TCP:
1274	{
1275	int rc = netperfTCPServer(pParams);
1276	return RT_SUCCESS(rc) ? RTEXITCODE_SUCCESS : RTEXITCODE_FAILURE;
1277	}
1278
1279	default:
1280	RTTestIFailed("Protocol not supported.\n");
1281	return RTEXITCODE_FAILURE;
1282	}
1283	}
1284
1285
1286
1287
1288
1289	/**
1290	* TCP client: Do the throughput test.
1291	*
1292	* @returns IPRT status code
1293	* @param pParams The parameters.
1294	*/
1295	static int netperfTCPClientDoThroughput(NETPERFPARAMS *pParams)
1296	{
1297	/*
1298	* Allocate the buffer.
1299	*/
1300	NETPERFHDR pBuf = (NETPERFHDR )RTMemAllocZ(pParams->cbPacket);
1301	if (!pBuf)
1302	return RTTestIFailedRc(VERR_NO_MEMORY, "Out of memory");
1303
1304	/*
1305	* Send first, then Receive.
1306	*/
1307	NETPERFSTATS SendStats;
1308	int rc = netperfTCPThroughputSend(pParams, pBuf, &SendStats);
1309	if (RT_SUCCESS(rc))
1310	{
1311	NETPERFSTATS SrvSendStats;
1312	rc = netperfRecvStats(&SrvSendStats, pParams->hSocket);
1313	if (RT_SUCCESS(rc))
1314	{
1315	NETPERFSTATS RecvStats;
1316	rc = netperfTCPThroughputRecv(pParams, pBuf, &RecvStats);
1317	if (RT_SUCCESS(rc))
1318	{
1319	NETPERFSTATS SrvRecvStats;
1320	rc = netperfRecvStats(&SrvRecvStats, pParams->hSocket);
1321	if (RT_SUCCESS(rc))
1322	{
1323	if (pParams->fServerStats)
1324	netperfPrintThroughputStats(&SrvSendStats, &SrvRecvStats, pParams->cbPacket);
1325	else
1326	netperfPrintThroughputStats(&SendStats, &RecvStats, pParams->cbPacket);
1327	}
1328	}
1329	}
1330	}
1331
1332	RTTestISubDone();
1333	return rc;
1334	}
1335
1336	/**
1337	* TCP client: Do the throughput xmit test.
1338	*
1339	* @returns IPRT status code
1340	* @param pParams The parameters.
1341	*/
1342	static int netperfTCPClientDoThroughputXmit(NETPERFPARAMS *pParams)
1343	{
1344	/*
1345	* Allocate the buffer.
1346	*/
1347	NETPERFHDR pBuf = (NETPERFHDR )RTMemAllocZ(pParams->cbPacket);
1348	if (!pBuf)
1349	return RTTestIFailedRc(VERR_NO_MEMORY, "Out of memory");
1350
1351	/*
1352	* Do the job.
1353	*/
1354	NETPERFSTATS SendStats;
1355	int rc = netperfTCPThroughputSend(pParams, pBuf, &SendStats);
1356	if (RT_SUCCESS(rc))
1357	{
1358	NETPERFSTATS SrvSendStats;
1359	rc = netperfRecvStats(&SrvSendStats, pParams->hSocket);
1360	if (RT_SUCCESS(rc))
1361	{
1362	if (pParams->fServerStats)
1363	netperfPrintThroughputStats(&SrvSendStats, NULL, pParams->cbPacket);
1364	else
1365	netperfPrintThroughputStats(&SendStats, NULL, pParams->cbPacket);
1366	}
1367	}
1368
1369	RTTestISubDone();
1370	return rc;
1371	}
1372
1373	/**
1374	* TCP client: Do the throughput recv test.
1375	*
1376	* @returns IPRT status code
1377	* @param pParams The parameters.
1378	*/
1379	static int netperfTCPClientDoThroughputRecv(NETPERFPARAMS *pParams)
1380	{
1381	/*
1382	* Allocate the buffer.
1383	*/
1384	NETPERFHDR pBuf = (NETPERFHDR )RTMemAllocZ(pParams->cbPacket);
1385	if (!pBuf)
1386	return RTTestIFailedRc(VERR_NO_MEMORY, "Out of memory");
1387
1388	/*
1389	* Do the job.
1390	*/
1391	NETPERFSTATS RecvStats;
1392	int rc = netperfTCPThroughputRecv(pParams, pBuf, &RecvStats);
1393	if (RT_SUCCESS(rc))
1394	{
1395	NETPERFSTATS SrvRecvStats;
1396	rc = netperfRecvStats(&SrvRecvStats, pParams->hSocket);
1397	if (RT_SUCCESS(rc))
1398	{
1399	if (pParams->fServerStats)
1400	netperfPrintThroughputStats(NULL, &SrvRecvStats, pParams->cbPacket);
1401	else
1402	netperfPrintThroughputStats(NULL, &RecvStats, pParams->cbPacket);
1403	}
1404	}
1405
1406	RTTestISubDone();
1407	return rc;
1408	}
1409
1410	/**
1411	* TCP client: Do the latency test.
1412	*
1413	* @returns IPRT status code
1414	* @param pParams The parameters.
1415	*/
1416	static int netperfTCPClientDoLatency(NETPERFPARAMS *pParams)
1417	{
1418	/*
1419	* Generate a selection of packages before we start, after all we're not
1420	* benchmarking the random number generator, are we. :-)
1421	*/
1422	void *pvReadBuf = RTMemAllocZ(pParams->cbPacket);
1423	if (!pvReadBuf)
1424	return RTTestIFailedRc(VERR_NO_MEMORY, "Out of memory");
1425
1426	size_t i;
1427	NETPERFHDR *apPackets[256];
1428	for (i = 0; i < RT_ELEMENTS(apPackets); i++)
1429	{
1430	apPackets[i] = (NETPERFHDR *)RTMemAllocZ(pParams->cbPacket);
1431	if (!apPackets[i])
1432	{
1433	while (i-- > 0)
1434	RTMemFree(apPackets[i]);
1435	RTMemFree(pvReadBuf);
1436	return RTTestIFailedRc(VERR_NO_MEMORY, "Out of memory");
1437	}
1438	RTRandBytes(apPackets[i], pParams->cbPacket);
1439	apPackets[i]->u32Magic = RT_H2LE_U32_C(NETPERFHDR_MAGIC);
1440	apPackets[i]->u32State = 0;
1441	apPackets[i]->u32Seq = 0;
1442	apPackets[i]->u32Reserved = 0;
1443	}
1444
1445	/*
1446	* Create & start a timer to eventually disconnect.
1447	*/
1448	bool volatile fStop = false;
1449	RTTIMERLR hTimer;
1450	int rc = RTTimerLRCreateEx(&hTimer, 0 /* nsec /, RTTIMER_FLAGS_CPU_ANY, netperfStopTimerCallback, (void )&fStop);
1451	if (RT_SUCCESS(rc))
1452	{
1453	uint32_t u32Seq = 0;
1454	NETPERFSTATS Stats;
1455	RT_ZERO(Stats);
1456
1457	/*
1458	* Warm up.
1459	*/
1460	if (g_uVerbosity > 0)
1461	RTPrintf("Warmup...\n");
1462	rc = RTTimerLRStart(hTimer, pParams->cMsWarmup * UINT64_C(1000000) /* nsec */);
1463	if (RT_SUCCESS(rc))
1464	{
1465	while (!fStop)
1466	{
1467	NETPERFHDR *pPacket = apPackets[u32Seq % RT_ELEMENTS(apPackets)];
1468	u32Seq++;
1469	pPacket->u32Seq = RT_H2LE_U32(u32Seq);
1470	pPacket->u32State = RT_H2LE_U32_C(NETPERFHDR_WARMUP);
1471	rc = RTTcpWrite(pParams->hSocket, pPacket, pParams->cbPacket);
1472	if (RT_FAILURE(rc))
1473	{
1474	RTTestIFailed("RTTcpWrite/warmup: %Rrc\n", rc);
1475	break;
1476	}
1477	rc = RTTcpRead(pParams->hSocket, pvReadBuf, pParams->cbPacket, NULL);
1478	if (RT_FAILURE(rc))
1479	{
1480	RTTestIFailed("RTTcpRead/warmup: %Rrc\n", rc);
1481	break;
1482	}
1483	}
1484	}
1485	else
1486	RTTestIFailed("RTTimerLRStart/warmup: %Rrc\n", rc);
1487
1488	/*
1489	* The real thing.
1490	*/
1491	if (RT_SUCCESS(rc))
1492	{
1493	if (g_uVerbosity > 0)
1494	RTPrintf("The real thing...\n");
1495	fStop = false;
1496	rc = RTTimerLRStart(hTimer, pParams->cSecTimeout * UINT64_C(1000000000) /* nsec */);
1497	if (RT_SUCCESS(rc))
1498	{
1499	uint64_t u64StartTS = RTTimeNanoTS();
1500	while (!fStop)
1501	{
1502	NETPERFHDR *pPacket = apPackets[u32Seq % RT_ELEMENTS(apPackets)];
1503	u32Seq++;
1504	pPacket->u32Seq = RT_H2LE_U32(u32Seq);
1505	pPacket->u32State = RT_H2LE_U32_C(NETPERFHDR_TESTING);
1506	rc = RTTcpWrite(pParams->hSocket, pPacket, pParams->cbPacket);
1507	if (RT_FAILURE(rc))
1508	{
1509	RTTestIFailed("RTTcpWrite/testing: %Rrc\n", rc);
1510	break;
1511	}
1512	Stats.cTx++;
1513
1514	rc = RTTcpRead(pParams->hSocket, pvReadBuf, pParams->cbPacket, NULL);
1515	if (RT_FAILURE(rc))
1516	{
1517	RTTestIFailed("RTTcpRead/testing: %Rrc\n", rc);
1518	break;
1519	}
1520	Stats.cRx++;
1521
1522	if (!memcmp(pvReadBuf, pPacket, pParams->cbPacket))
1523	Stats.cEchos++;
1524	else
1525	Stats.cErrors++;
1526	}
1527	Stats.cNsElapsed = RTTimeNanoTS() - u64StartTS;
1528	}
1529	else
1530	RTTestIFailed("RTTimerLRStart/testing: %Rrc\n", rc);
1531	}
1532
1533	/*
1534	* Cool down.
1535	*/
1536	if (RT_SUCCESS(rc))
1537	{
1538	if (g_uVerbosity > 0)
1539	RTPrintf("Cool down...\n");
1540	fStop = false;
1541	rc = RTTimerLRStart(hTimer, pParams->cMsCoolDown * UINT64_C(1000000) /* nsec */);
1542	if (RT_SUCCESS(rc))
1543	{
1544	while (!fStop)
1545	{
1546	NETPERFHDR *pPacket = apPackets[u32Seq % RT_ELEMENTS(apPackets)];
1547	u32Seq++;
1548	pPacket->u32Seq = RT_H2LE_U32(u32Seq);
1549	pPacket->u32State = RT_H2LE_U32_C(NETPERFHDR_COOL_DOWN);
1550	rc = RTTcpWrite(pParams->hSocket, pPacket, pParams->cbPacket);
1551	if (RT_FAILURE(rc))
1552	{
1553	RTTestIFailed("RTTcpWrite/warmup: %Rrc\n", rc);
1554	break;
1555	}
1556	rc = RTTcpRead(pParams->hSocket, pvReadBuf, pParams->cbPacket, NULL);
1557	if (RT_FAILURE(rc))
1558	{
1559	RTTestIFailed("RTTcpRead/warmup: %Rrc\n", rc);
1560	break;
1561	}
1562	}
1563	}
1564	else
1565	RTTestIFailed("RTTimerLRStart/testing: %Rrc\n", rc);
1566	}
1567
1568	/*
1569	* Send DONE packet.
1570	*/
1571	if (g_uVerbosity > 0)
1572	RTPrintf("Done\n");
1573	if (RT_SUCCESS(rc))
1574	{
1575	u32Seq++;
1576	NETPERFHDR *pPacket = apPackets[u32Seq % RT_ELEMENTS(apPackets)];
1577	pPacket->u32Seq = RT_H2LE_U32(u32Seq);
1578	pPacket->u32State = RT_H2LE_U32_C(NETPERFHDR_DONE);
1579	rc = RTTcpWrite(pParams->hSocket, pPacket, pParams->cbPacket);
1580	if (RT_FAILURE(rc))
1581	RTTestIFailed("RTTcpWrite/done: %Rrc\n", rc);
1582	}
1583
1584
1585	/*
1586	* Get and print stats.
1587	*/
1588	NETPERFSTATS SrvStats;
1589	if (RT_SUCCESS(rc))
1590	{
1591	rc = netperfRecvStats(&SrvStats, pParams->hSocket);
1592	if (RT_SUCCESS(rc) && pParams->fServerStats)
1593	netperfPrintLatencyStats(&SrvStats, pParams->cbPacket);
1594	else if (!pParams->fServerStats)
1595	netperfPrintLatencyStats(&Stats, pParams->cbPacket);
1596	}
1597
1598	/* clean up*/
1599	RTTimerLRDestroy(hTimer);
1600	}
1601	else
1602	RTTestIFailed("Failed to create timer object: %Rrc\n", rc);
1603	for (i = 0; i < RT_ELEMENTS(apPackets); i++)
1604	RTMemFree(apPackets[i]);
1605
1606	RTMemFree(pvReadBuf);
1607
1608	return rc;
1609	}
1610
1611	/**
1612	* TCP client test driver.
1613	*
1614	* @returns IPRT status code
1615	* @param pszServer The server name.
1616	* @param pParams The parameter structure.
1617	*/
1618	static int netperfTCPClient(const char pszServer, NETPERFPARAMS pParams)
1619	{
1620	AssertReturn(pParams, VERR_INVALID_POINTER);
1621	RTTestISubF("TCP - %u s, %u bytes%s", pParams->cSecTimeout,
1622	pParams->cbPacket, pParams->fNoDelay ? ", no delay" : "");
1623
1624	RTSOCKET hSocket = NIL_RTSOCKET;
1625	int rc = RTTcpClientConnect(pszServer, pParams->uPort, &hSocket);
1626	if (RT_FAILURE(rc))
1627	return RTTestIFailedRc(rc, "Failed to connect to %s on port %u: %Rrc\n", pszServer, pParams->uPort, rc);
1628	pParams->hSocket = hSocket;
1629
1630	/*
1631	* Disable send coalescing (no-delay).
1632	*/
1633	if (pParams->fNoDelay)
1634	{
1635	rc = RTTcpSetSendCoalescing(hSocket, false /fEnable/);
1636	if (RT_FAILURE(rc))
1637	return RTTestIFailedRc(rc, "Failed to set no-delay option: %Rrc\n", rc);
1638	}
1639
1640	/*
1641	* Verify the super secret Start Connect Id to start the connection.
1642	*/
1643	char szBuf[256 + NETPERF_LEN_PREFIX];
1644	RT_ZERO(szBuf);
1645	rc = RTTcpRead(hSocket, szBuf, sizeof(g_ConnectStart) - 1, NULL);
1646	if (RT_FAILURE(rc))
1647	return RTTestIFailedRc(rc, "Failed to read connection initializer: %Rrc\n", rc);
1648
1649	if (strcmp(szBuf, g_ConnectStart))
1650	return RTTestIFailedRc(VERR_INVALID_MAGIC, "Invalid connection initializer '%s'\n", szBuf);
1651
1652	/*
1653	* Send all the dynamic parameters to the server.
1654	* (If the server is newer than the client, it will select default for any
1655	* missing parameters.)
1656	*/
1657	size_t cchParams = RTStrPrintf(&szBuf[NETPERF_LEN_PREFIX], sizeof(szBuf) - NETPERF_LEN_PREFIX,
1658	"%s:%s:%s:%u:%u:%u:%u:%u",
1659	g_szStartParams,
1660	"TCP",
1661	netperfModeToString(pParams->enmMode),
1662	pParams->cSecTimeout,
1663	pParams->cbPacket,
1664	pParams->cMsWarmup,
1665	pParams->cMsCoolDown,
1666	pParams->fNoDelay);
1667	RTStrPrintf(szBuf, NETPERF_LEN_PREFIX + 1, "%0*u", NETPERF_LEN_PREFIX, cchParams);
1668	szBuf[NETPERF_LEN_PREFIX] = g_szStartParams[0];
1669	Assert(strlen(szBuf) == NETPERF_LEN_PREFIX + cchParams);
1670	rc = RTTcpWrite(hSocket, szBuf, NETPERF_LEN_PREFIX + cchParams);
1671	if (RT_FAILURE(rc))
1672	return RTTestIFailedRc(rc, "Failed to send connection parameters: %Rrc\n", rc);
1673
1674	/*
1675	* Wait for acknowledgment.
1676	*/
1677	rc = RTTcpRead(hSocket, szBuf, sizeof(g_szAck) - 1, NULL);
1678	if (RT_FAILURE(rc))
1679	return RTTestIFailedRc(rc, "Failed to send parameters: %Rrc\n", rc);
1680	szBuf[sizeof(g_szAck) - 1] = '\0';
1681
1682	if (!strcmp(szBuf, g_szNegative))
1683	return RTTestIFailedRc(VERR_NET_PROTOCOL_ERROR, "Server failed to accept packet size of %u bytes.\n", pParams->cbPacket);
1684	if (strcmp(szBuf, g_szAck))
1685	return RTTestIFailedRc(VERR_NET_PROTOCOL_ERROR, "Invalid response from server '%s'\n", szBuf);
1686
1687	/*
1688	* Take action according to our mode.
1689	*/
1690	switch (pParams->enmMode)
1691	{
1692	case NETPERFMODE_LATENCY:
1693	RTTestIPrintf(RTTESTLVL_ALWAYS, "Connected to %s port %u, running the latency test for %u seconds.\n",
1694	pszServer, pParams->uPort, pParams->cSecTimeout);
1695	rc = netperfTCPClientDoLatency(pParams);
1696	break;
1697
1698	case NETPERFMODE_THROUGHPUT:
1699	RTTestIPrintf(RTTESTLVL_ALWAYS, "Connected to %s port %u, running the throughput test for %u seconds in each direction.\n",
1700	pszServer, pParams->uPort, pParams->cSecTimeout);
1701	rc = netperfTCPClientDoThroughput(pParams);
1702	break;
1703
1704	case NETPERFMODE_THROUGHPUT_XMIT:
1705	RTTestIPrintf(RTTESTLVL_ALWAYS, "Connected to %s port %u, running the throughput-xmit test for %u seconds.\n",
1706	pszServer, pParams->uPort, pParams->cSecTimeout);
1707	rc = netperfTCPClientDoThroughputXmit(pParams);
1708	break;
1709
1710	case NETPERFMODE_THROUGHPUT_RECV:
1711	RTTestIPrintf(RTTESTLVL_ALWAYS, "Connected to %s port %u, running the throughput-recv test for %u seconds.\n",
1712	pszServer, pParams->uPort, pParams->cSecTimeout);
1713	rc = netperfTCPClientDoThroughputRecv(pParams);
1714	break;
1715
1716	case NETPERFMODE_INVALID:
1717	rc = VERR_INTERNAL_ERROR;
1718	break;
1719
1720	/* no default! */
1721	}
1722	return rc;
1723	}
1724
1725	/**
1726	* The client part.
1727	*
1728	* @returns Exit code.
1729	* @param enmProto The protocol.
1730	* @param pszServer The server name.
1731	* @param pvUser The parameter block as opaque user data.
1732	*/
1733	static RTEXITCODE netperfClient(NETPERFPROTO enmProto, const char pszServer, void pvUser)
1734	{
1735	switch (enmProto)
1736	{
1737	case NETPERFPROTO_TCP:
1738	{
1739	NETPERFPARAMS pParams = (NETPERFPARAMS )pvUser;
1740	int rc = netperfTCPClient(pszServer, pParams);
1741	if (pParams->hSocket != NIL_RTSOCKET)
1742	{
1743	RTTcpClientClose(pParams->hSocket);
1744	pParams->hSocket = NIL_RTSOCKET;
1745	}
1746	return RT_SUCCESS(rc) ? RTEXITCODE_SUCCESS : RTEXITCODE_FAILURE;
1747	}
1748
1749	default:
1750	RTTestIFailed("Protocol not supported.\n");
1751	return RTEXITCODE_FAILURE;
1752	}
1753	}
1754
1755
1756	int main(int argc, char *argv[])
1757	{
1758	/*
1759	* Init IPRT and globals.
1760	*/
1761	int rc = RTTestInitAndCreate("NetPerf", &g_hTest);
1762	if (rc)
1763	return rc;
1764
1765	/*
1766	* Special case.
1767	*/
1768	if (argc < 2)
1769	{
1770	RTTestFailed(g_hTest, "No arguments given.");
1771	return RTTestSummaryAndDestroy(g_hTest);
1772	}
1773
1774	/*
1775	* Default values.
1776	*/
1777	NETPERFPROTO enmProtocol = NETPERFPROTO_TCP;
1778	bool fServer = true;
1779	bool fDaemonize = false;
1780	bool fDaemonized = false;
1781	bool fPacketSizeSet = false;
1782	const char *pszServerAddress= NULL;
1783
1784	NETPERFPARAMS Params;
1785	Params.uPort = NETPERF_DEFAULT_PORT;
1786	Params.fServerStats = false;
1787	Params.fSingleClient = false;
1788
1789	Params.fNoDelay = false;
1790	Params.fCheckData = false;
1791	Params.enmMode = NETPERFMODE_LATENCY;
1792	Params.cSecTimeout = NETPERF_DEFAULT_TIMEOUT;
1793	Params.cMsWarmup = NETPERF_DEFAULT_WARMUP;
1794	Params.cMsCoolDown = NETPERF_DEFAULT_COOL_DOWN;
1795	Params.cbPacket = NETPERF_DEFAULT_PKT_SIZE_LATENCY;
1796
1797	Params.hSocket = NIL_RTSOCKET;
1798
1799	RTGETOPTUNION ValueUnion;
1800	RTGETOPTSTATE GetState;
1801	RTGetOptInit(&GetState, argc, argv, g_aCmdOptions, RT_ELEMENTS(g_aCmdOptions), 1, 0 /* fFlags */);
1802	while ((rc = RTGetOpt(&GetState, &ValueUnion)))
1803	{
1804	switch (rc)
1805	{
1806	case 's':
1807	fServer = true;
1808	break;
1809
1810	case 'c':
1811	fServer = false;
1812	pszServerAddress = ValueUnion.psz;
1813	break;
1814
1815	case 'd':
1816	fDaemonize = true;
1817	break;
1818
1819	case 'D':
1820	fDaemonized = true;
1821	break;
1822
1823	case 'i':
1824	Params.cSecTimeout = ValueUnion.u32;
1825	if ( Params.cSecTimeout < NETPERF_MIN_TIMEOUT
1826	\|\| Params.cSecTimeout > NETPERF_MAX_TIMEOUT)
1827	{
1828	RTTestFailed(g_hTest, "Invalid interval %u s, valid range: %u-%u\n",
1829	Params.cbPacket, NETPERF_MIN_TIMEOUT, NETPERF_MAX_TIMEOUT);
1830	return RTTestSummaryAndDestroy(g_hTest);
1831	}
1832	break;
1833
1834	case 'l':
1835	Params.cbPacket = ValueUnion.u32;
1836	if ( Params.cbPacket < NETPERF_MIN_PKT_SIZE
1837	\|\| Params.cbPacket > NETPERF_MAX_PKT_SIZE)
1838	{
1839	RTTestFailed(g_hTest, "Invalid packet size %u bytes, valid range: %u-%u\n",
1840	Params.cbPacket, NETPERF_MIN_PKT_SIZE, NETPERF_MAX_PKT_SIZE);
1841	return RTTestSummaryAndDestroy(g_hTest);
1842	}
1843	fPacketSizeSet = true;
1844	break;
1845
1846	case 'm':
1847	Params.enmMode = netperfModeFromString(ValueUnion.psz);
1848	if (Params.enmMode == NETPERFMODE_INVALID)
1849	{
1850	RTTestFailed(g_hTest, "Invalid test mode: \"%s\"\n", ValueUnion.psz);
1851	return RTTestSummaryAndDestroy(g_hTest);
1852	}
1853	if (!fPacketSizeSet)
1854	switch (Params.enmMode)
1855	{
1856	case NETPERFMODE_LATENCY:
1857	Params.cbPacket = NETPERF_DEFAULT_PKT_SIZE_LATENCY;
1858	break;
1859	case NETPERFMODE_THROUGHPUT:
1860	case NETPERFMODE_THROUGHPUT_XMIT:
1861	case NETPERFMODE_THROUGHPUT_RECV:
1862	Params.cbPacket = NETPERF_DEFAULT_PKT_SIZE_THROUGHPUT;
1863	break;
1864	case NETPERFMODE_INVALID:
1865	break;
1866	/* no default! */
1867	}
1868	break;
1869
1870	case 'p':
1871	Params.uPort = ValueUnion.u32;
1872	break;
1873
1874	case 'N':
1875	Params.fNoDelay = true;
1876	break;
1877
1878	case 'S':
1879	Params.fServerStats = true;
1880	break;
1881
1882	case '1':
1883	Params.fSingleClient = true;
1884	break;
1885
1886	case 'v':
1887	g_uVerbosity++;
1888	break;
1889
1890	case 'h':
1891	Usage(g_pStdOut);
1892	return RTEXITCODE_SUCCESS;
1893
1894	case 'V':
1895	RTPrintf("$Revision: 70404 $\n");
1896	return RTEXITCODE_SUCCESS;
1897
1898	case 'w':
1899	Params.cMsWarmup = ValueUnion.u32;
1900	if ( Params.cMsWarmup < NETPERF_MIN_WARMUP
1901	\|\| Params.cMsWarmup > NETPERF_MAX_WARMUP)
1902	{
1903	RTTestFailed(g_hTest, "invalid warmup time %u ms, valid range: %u-%u\n",
1904	Params.cMsWarmup, NETPERF_MIN_WARMUP, NETPERF_MAX_WARMUP);
1905	return RTTestSummaryAndDestroy(g_hTest);
1906	}
1907	break;
1908
1909	case 'W':
1910	Params.cMsCoolDown = ValueUnion.u32;
1911	if ( Params.cMsCoolDown < NETPERF_MIN_COOL_DOWN
1912	\|\| Params.cMsCoolDown > NETPERF_MAX_COOL_DOWN)
1913	{
1914	RTTestFailed(g_hTest, "invalid cool down time %u ms, valid range: %u-%u\n",
1915	Params.cMsCoolDown, NETPERF_MIN_COOL_DOWN, NETPERF_MAX_COOL_DOWN);
1916	return RTTestSummaryAndDestroy(g_hTest);
1917	}
1918	break;
1919
1920	case 'C':
1921	Params.fCheckData = true;
1922	break;
1923
1924	default:
1925	return RTGetOptPrintError(rc, &ValueUnion);
1926	}
1927	}
1928
1929	/*
1930	* Handle the server process daemoniziation.
1931	*/
1932	if (fDaemonize && !fDaemonized && fServer)
1933	{
1934	rc = RTProcDaemonize(argv, "--daemonized");
1935	if (RT_FAILURE(rc))
1936	return RTMsgErrorExit(RTEXITCODE_FAILURE, "RTProcDaemonize failed: %Rrc\n", rc);
1937	return RTEXITCODE_SUCCESS;
1938	}
1939
1940	/*
1941	* Get down to business.
1942	*/
1943	RTTestBanner(g_hTest);
1944	if (fServer)
1945	rc = netperfServer(enmProtocol, &Params);
1946	else if (pszServerAddress)
1947	rc = netperfClient(enmProtocol, pszServerAddress, &Params);
1948	else
1949	RTTestFailed(g_hTest, "missing server address to connect to\n");
1950
1951	RTEXITCODE rc2 = RTTestSummaryAndDestroy(g_hTest);
1952	return rc2 != RTEXITCODE_FAILURE ? (RTEXITCODE)rc2 : rc;
1953	}
1954

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source: vbox/trunk/src/VBox/ValidationKit/utils/network/NetPerf.cpp@ 72293

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