RTDbgSymSrv.cpp@ 96407

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1	/* $Id: RTDbgSymSrv.cpp 96407 2022-08-22 17:43:14Z vboxsync $ */
2	/** @file
3	* IPRT - Debug Symbol Server.
4	*/
5
6	/*
7	* Copyright (C) 2021-2022 Oracle and/or its affiliates.
8	*
9	* This file is part of VirtualBox base platform packages, as
10	* available from https://www.virtualbox.org.
11	*
12	* This program is free software; you can redistribute it and/or
13	* modify it under the terms of the GNU General Public License
14	* as published by the Free Software Foundation, in version 3 of the
15	* License.
16	*
17	* This program is distributed in the hope that it will be useful, but
18	* WITHOUT ANY WARRANTY; without even the implied warranty of
19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20	* General Public License for more details.
21	*
22	* You should have received a copy of the GNU General Public License
23	* along with this program; if not, see <https://www.gnu.org/licenses>.
24	*
25	* The contents of this file may alternatively be used under the terms
26	* of the Common Development and Distribution License Version 1.0
27	* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
28	* in the VirtualBox distribution, in which case the provisions of the
29	* CDDL are applicable instead of those of the GPL.
30	*
31	* You may elect to license modified versions of this file under the
32	* terms and conditions of either the GPL or the CDDL or both.
33	*
34	* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
35	*/
36
37
38	/*********************************************************************************************************************************
39	* Header Files *
40	*********************************************************************************************************************************/
41
42	#include <iprt/assert.h>
43	#include <iprt/buildconfig.h>
44	#include <iprt/err.h>
45	#include <iprt/dir.h>
46	#include <iprt/env.h>
47	#include <iprt/file.h>
48	#include <iprt/log.h>
49	#include <iprt/getopt.h>
50	#include <iprt/http.h>
51	#include <iprt/http-server.h>
52	#include <iprt/initterm.h>
53	#include <iprt/string.h>
54	#include <iprt/stream.h>
55	#include <iprt/message.h>
56	#include <iprt/path.h>
57	#include <iprt/process.h>
58	#include <iprt/thread.h>
59	#include <iprt/pipe.h>
60
61
62	/*********************************************************************************************************************************
63	* Structures and Typedefs *
64	*********************************************************************************************************************************/
65
66
67	/*********************************************************************************************************************************
68	* Internal Functions *
69	*********************************************************************************************************************************/
70	static DECLCALLBACK(int) dbgSymSrvOpen(PRTHTTPCALLBACKDATA pData, PRTHTTPSERVERREQ pReq, void **ppvHandle);
71	static DECLCALLBACK(int) dbgSymSrvRead(PRTHTTPCALLBACKDATA pData, void pvHandle, void pvBuf, size_t cbBuf, size_t *pcbRead);
72	static DECLCALLBACK(int) dbgSymSrvClose(PRTHTTPCALLBACKDATA pData, void *pvHandle);
73	static DECLCALLBACK(int) dbgSymSrvQueryInfo(PRTHTTPCALLBACKDATA pData, PRTHTTPSERVERREQ pReq, PRTFSOBJINFO pObjInfo, char **ppszMIMEHint);
74	static DECLCALLBACK(int) dbgSymSrvDestroy(PRTHTTPCALLBACKDATA pData);
75
76
77	/*********************************************************************************************************************************
78	* Global Variables *
79	*********************************************************************************************************************************/
80	/** Flag whether the server was interrupted. */
81	static bool g_fCanceled = false;
82	/** The symbol cache absolute root. */
83	static const char *g_pszSymCacheRoot = NULL;
84	/** The path to the pdb.exe. */
85	static const char *g_pszPdbExe = NULL;
86	/** Symbol server to forward requests to if not found locally. */
87	static const char *g_pszSymSrvFwd = NULL;
88	#ifndef RT_OS_WINDOWS
89	/** The WINEPREFIX to use. */
90	static const char *g_pszWinePrefix = NULL;
91	/** The path to the wine binary to use for pdb.exe. */
92	static const char *g_pszWinePath = NULL;
93	#endif
94	/** Verbositity level. */
95	//static uint32_t g_iLogLevel = 99;
96	/** Server callbacks. */
97	static RTHTTPSERVERCALLBACKS g_SrvCallbacks =
98	{
99	dbgSymSrvOpen,
100	dbgSymSrvRead,
101	dbgSymSrvClose,
102	dbgSymSrvQueryInfo,
103	NULL,
104	NULL,
105	dbgSymSrvDestroy
106	};
107
108
109	/**
110	* Resolves (and validates) a given URL to an absolute (local) path.
111	*
112	* @returns VBox status code.
113	* @param pszUrl URL to resolve.
114	* @param ppszPathAbs Where to store the resolved absolute path on success.
115	* Needs to be free'd with RTStrFree().
116	* @param ppszPathAbsXml Where to store the resolved absolute path for the converted XML
117	* file. Needs to be free'd with RTStrFree().
118	*/
119	static int rtDbgSymSrvPathResolve(const char pszUrl, char ppszPathAbs, char *ppszPathAbsXml)
120	{
121	/* The URL needs to start with /download/symbols/. */
122	if (strncmp(pszUrl, "/download/symbols/", sizeof("/download/symbols/") - 1))
123	return VERR_NOT_FOUND;
124
125	pszUrl += sizeof("/download/symbols/") - 1;
126	/* Construct absolute path. */
127	char *pszPathAbs = NULL;
128	if (RTStrAPrintf(&pszPathAbs, "%s/%s", g_pszSymCacheRoot, pszUrl) <= 0)
129	return VERR_NO_MEMORY;
130
131	if (ppszPathAbsXml)
132	{
133	char *pszPathAbsXml = NULL;
134	if (RTStrAPrintf(&pszPathAbsXml, "%s/%s.xml", g_pszSymCacheRoot, pszUrl) <= 0)
135	return VERR_NO_MEMORY;
136
137	*ppszPathAbsXml = pszPathAbsXml;
138	}
139
140	*ppszPathAbs = pszPathAbs;
141
142	return VINF_SUCCESS;
143	}
144
145
146	static int rtDbgSymSrvFwdDownload(const char pszUrl, char pszPathAbs)
147	{
148	RTPrintf("'%s' not in local cache, fetching from '%s'\n", pszPathAbs, g_pszSymSrvFwd);
149
150	char *pszFilename = RTPathFilename(pszPathAbs);
151	char chStart = *pszFilename;
152	*pszFilename = '\0';
153	int rc = RTDirCreateFullPath(pszPathAbs, 0766);
154	if (!RTDirExists(pszPathAbs))
155	{
156	Log(("Error creating cache dir '%s': %Rrc\n", pszPathAbs, rc));
157	return rc;
158	}
159	*pszFilename = chStart;
160
161	char szUrl[_2K];
162	RTHTTP hHttp;
163	rc = RTHttpCreate(&hHttp);
164	if (RT_SUCCESS(rc))
165	{
166	RTHttpUseSystemProxySettings(hHttp);
167	RTHttpSetFollowRedirects(hHttp, 8);
168
169	static const char * const s_apszHeaders[] =
170	{
171	"User-Agent: Microsoft-Symbol-Server/6.6.0999.9",
172	"Pragma: no-cache",
173	};
174
175	rc = RTHttpSetHeaders(hHttp, RT_ELEMENTS(s_apszHeaders), s_apszHeaders);
176	if (RT_SUCCESS(rc))
177	{
178	RTStrPrintf(szUrl, sizeof(szUrl), "%s/%s", g_pszSymSrvFwd, pszUrl + sizeof("/download/symbols/") - 1);
179
180	/** @todo Use some temporary file name and rename it after the operation
181	* since not all systems support read-deny file sharing
182	* settings. */
183	RTPrintf("Downloading '%s' to '%s'...\n", szUrl, pszPathAbs);
184	rc = RTHttpGetFile(hHttp, szUrl, pszPathAbs);
185	if (RT_FAILURE(rc))
186	{
187	RTFileDelete(pszPathAbs);
188	RTPrintf("%Rrc on URL '%s'\n", rc, szUrl);
189	}
190	if (rc == VERR_HTTP_NOT_FOUND)
191	{
192	/* Try the compressed version of the file. */
193	pszPathAbs[strlen(pszPathAbs) - 1] = '_';
194	szUrl[strlen(szUrl) - 1] = '_';
195	RTPrintf("Downloading '%s' to '%s'...\n", szUrl, pszPathAbs);
196	rc = RTHttpGetFile(hHttp, szUrl, pszPathAbs);
197	#if 0 /** @todo */
198	if (RT_SUCCESS(rc))
199	rc = rtDbgCfgUnpackMsCacheFile(pThis, pszPathAbs, pszFilename);
200	else
201	#endif
202	{
203	RTPrintf("%Rrc on URL '%s'\n", rc, pszPathAbs);
204	RTFileDelete(pszPathAbs);
205	}
206	}
207	}
208
209	RTHttpDestroy(hHttp);
210	}
211
212	return rc;
213	}
214
215
216	static int rtDbgSymSrvConvertToGhidraXml(char pszPath, const char pszFilename)
217	{
218	RTPrintf("Converting '%s' to ghidra XML into '%s'\n", pszPath, pszFilename);
219
220	/*
221	* Figuring out the argument list for the platform specific way to call pdb.exe.
222	*/
223	#ifdef RT_OS_WINDOWS
224	RTENV hEnv = RTENV_DEFAULT;
225	RTPathChangeToDosSlashes(pszPath, false /fForce/);
226	const char *papszArgs[] =
227	{
228	g_pszPdbExe,
229	pszPath,
230	NULL
231	};
232
233	#else
234	const char *papszArgs[] =
235	{
236	g_pszWinePath,
237	g_pszPdbExe,
238	pszPath,
239	NULL
240	};
241
242	RTENV hEnv;
243	{
244	int rc = RTEnvCreate(&hEnv);
245	if (RT_SUCCESS(rc))
246	{
247	rc = RTEnvSetEx(hEnv, "WINEPREFIX", g_pszWinePrefix);
248	if (RT_SUCCESS(rc))
249	rc = RTEnvSetEx(hEnv, "WINEDEBUG", "-all");
250	if (RT_FAILURE(rc))
251	{
252	RTEnvDestroy(hEnv);
253	return rc;
254	}
255	}
256	}
257	#endif
258
259	RTPIPE hPipeR, hPipeW;
260	int rc = RTPipeCreate(&hPipeR, &hPipeW, RTPIPE_C_INHERIT_WRITE);
261	if (RT_SUCCESS(rc))
262	{
263	RTHANDLE Handle;
264	Handle.enmType = RTHANDLETYPE_PIPE;
265	Handle.u.hPipe = hPipeW;
266
267	/*
268	* Do the conversion.
269	*/
270	RTPROCESS hChild;
271	RTFILE hFile;
272
273	rc = RTFileOpen(&hFile, pszFilename, RTFILE_O_WRITE \| RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE); AssertRC(rc);
274
275	rc = RTProcCreateEx(papszArgs[0], papszArgs, hEnv,
276	#if defined(RT_OS_WINDOWS) \|\| defined(RT_OS_OS2)
277	RTPROC_FLAGS_NO_WINDOW \| RTPROC_FLAGS_HIDDEN \| RTPROC_FLAGS_SEARCH_PATH,
278	#else
279	RTPROC_FLAGS_SEARCH_PATH,
280	#endif
281	NULL /phStdIn/, &Handle, NULL /phStdErr/,
282	NULL /pszAsUser/, NULL /pszPassword/, NULL /pvExtraData/,
283	&hChild);
284	if (RT_SUCCESS(rc))
285	{
286	rc = RTPipeClose(hPipeW); AssertRC(rc);
287
288	for (;;)
289	{
290	char szOutput[_4K];
291	size_t cbRead;
292	rc = RTPipeReadBlocking(hPipeR, &szOutput[0], sizeof(szOutput), &cbRead);
293	if (RT_FAILURE(rc))
294	{
295	Assert(rc == VERR_BROKEN_PIPE);
296	break;
297	}
298
299	rc = RTFileWrite(hFile, &szOutput[0], cbRead, NULL /pcbWritten/); AssertRC(rc);
300	}
301	rc = RTPipeClose(hPipeR); AssertRC(rc);
302
303	RTPROCSTATUS ProcStatus;
304	rc = RTProcWait(hChild, RTPROCWAIT_FLAGS_BLOCK, &ProcStatus);
305	if (RT_SUCCESS(rc))
306	{
307	if ( ProcStatus.enmReason == RTPROCEXITREASON_NORMAL
308	&& ProcStatus.iStatus == 0)
309	{
310	if (RTPathExists(pszPath))
311	{
312	RTPrintf("Successfully unpacked '%s' to '%s'.\n", pszPath, pszFilename);
313	rc = VINF_SUCCESS;
314	}
315	else
316	{
317	RTPrintf("Successfully ran unpacker on '%s', but '%s' is missing!\n", pszPath, pszFilename);
318	rc = VERR_FILE_NOT_FOUND;
319	}
320	}
321	else
322	{
323	RTPrintf("Unpacking '%s' failed: iStatus=%d enmReason=%d\n",
324	pszPath, ProcStatus.iStatus, ProcStatus.enmReason);
325	rc = VERR_ZIP_CORRUPTED;
326	}
327	}
328	else
329	RTPrintf("Error waiting for process: %Rrc\n", rc);
330
331	RTFileClose(hFile);
332
333	}
334	else
335	RTPrintf("Error starting unpack process '%s': %Rrc\n", papszArgs[0], rc);
336	}
337
338	#ifndef RT_OS_WINDOWS
339	RTEnvDestroy(hEnv);
340	#endif
341	return rc;
342	}
343
344
345	static DECLCALLBACK(int) dbgSymSrvOpen(PRTHTTPCALLBACKDATA pData, PRTHTTPSERVERREQ pReq, void **ppvHandle)
346	{
347	RT_NOREF(pData);
348
349	char *pszPathAbs = NULL;
350	char *pszPathAbsXml = NULL;
351	int rc = rtDbgSymSrvPathResolve(pReq->pszUrl, &pszPathAbs, &pszPathAbsXml);
352	if (RT_SUCCESS(rc))
353	{
354	RTFILE hFile;
355	if ( g_pszPdbExe
356	&& RTPathExists(pszPathAbsXml))
357	{
358	RTPrintf("Opening '%s'\n", pszPathAbsXml);
359	rc = RTFileOpen(&hFile, pszPathAbsXml, RTFILE_O_READ \| RTFILE_O_OPEN \| RTFILE_O_DENY_WRITE);
360	}
361	else
362	{
363	RTPrintf("Opening '%s'\n", pszPathAbs);
364	rc = RTFileOpen(&hFile, pszPathAbs, RTFILE_O_READ \| RTFILE_O_OPEN \| RTFILE_O_DENY_WRITE);
365	}
366	if (RT_SUCCESS(rc))
367	*ppvHandle = hFile;
368
369	RTStrFree(pszPathAbs);
370	RTStrFree(pszPathAbsXml);
371	}
372
373	LogFlowFuncLeaveRC(rc);
374	return rc;
375	}
376
377
378	static DECLCALLBACK(int) dbgSymSrvRead(PRTHTTPCALLBACKDATA pData, void pvHandle, void pvBuf, size_t cbBuf, size_t *pcbRead)
379	{
380	RT_NOREF(pData);
381	return RTFileRead((RTFILE)pvHandle, pvBuf, cbBuf, pcbRead);
382	}
383
384
385	static DECLCALLBACK(int) dbgSymSrvClose(PRTHTTPCALLBACKDATA pData, void *pvHandle)
386	{
387	RT_NOREF(pData);
388	return RTFileClose((RTFILE)pvHandle);
389	}
390
391
392	static DECLCALLBACK(int) dbgSymSrvQueryInfo(PRTHTTPCALLBACKDATA pData, PRTHTTPSERVERREQ pReq, PRTFSOBJINFO pObjInfo, char **ppszMIMEHint)
393	{
394	RT_NOREF(pData, ppszMIMEHint);
395	char *pszPathAbs = NULL;
396	char *pszPathAbsXml = NULL;
397	int rc = rtDbgSymSrvPathResolve(pReq->pszUrl, &pszPathAbs, &pszPathAbsXml);
398	if (RT_SUCCESS(rc))
399	{
400	if ( !RTPathExists(pszPathAbs)
401	&& g_pszSymSrvFwd)
402	rc = rtDbgSymSrvFwdDownload(pReq->pszUrl, pszPathAbs);
403
404	if ( RT_SUCCESS(rc)
405	&& RTPathExists(pszPathAbs))
406	{
407	const char *pszFile = pszPathAbs;
408
409	if (g_pszPdbExe)
410	{
411	if (!RTPathExists(pszPathAbsXml))
412	rc = rtDbgSymSrvConvertToGhidraXml(pszPathAbs, pszPathAbsXml);
413	if (RT_SUCCESS(rc))
414	pszFile = pszPathAbsXml;
415	}
416
417	if ( RT_SUCCESS(rc)
418	&& RTPathExists(pszFile))
419	{
420	rc = RTPathQueryInfo(pszFile, pObjInfo, RTFSOBJATTRADD_NOTHING);
421	if (RT_SUCCESS(rc))
422	{
423	if (!RTFS_IS_FILE(pObjInfo->Attr.fMode))
424	rc = VERR_NOT_SUPPORTED;
425	}
426	}
427	else
428	rc = VERR_FILE_NOT_FOUND;
429	}
430	else
431	rc = VERR_FILE_NOT_FOUND;
432
433	RTStrFree(pszPathAbs);
434	RTStrFree(pszPathAbsXml);
435	}
436
437	LogFlowFuncLeaveRC(rc);
438	return rc;
439	}
440
441
442	static DECLCALLBACK(int) dbgSymSrvDestroy(PRTHTTPCALLBACKDATA pData)
443	{
444	RTPrintf("%s\n", __FUNCTION__);
445	RT_NOREF(pData);
446	return VINF_SUCCESS;
447	}
448
449
450	/**
451	* Display the version of the server program.
452	*
453	* @returns exit code.
454	*/
455	static RTEXITCODE rtDbgSymSrvVersion(void)
456	{
457	RTPrintf("%sr%d\n", RTBldCfgVersion(), RTBldCfgRevision());
458	return RTEXITCODE_SUCCESS;
459	}
460
461
462	/**
463	* Shows the usage of the cache program.
464	*
465	* @returns Exit code.
466	* @param pszArg0 Program name.
467	*/
468	static RTEXITCODE rtDbgSymSrvUsage(const char *pszArg0)
469	{
470	RTPrintf("Usage: %s --address <interface> --port <port> --sym-cache <symbol cache root> --pdb-exe <ghidra pdb.exe path>\n"
471	"\n"
472	"Options:\n"
473	" -a, --address\n"
474	" The interface to listen on, default is localhost.\n"
475	" -p, --port\n"
476	" The port to listen on, default is 80.\n"
477	" -c, --sym-cache\n"
478	" The absolute path of the symbol cache.\n"
479	" -x, --pdb-exe\n"
480	" The path of Ghidra's pdb.exe to convert PDB files to XML on the fly.\n"
481	" -f, --sym-srv-forward\n"
482	" The symbol server to forward requests to if a file is not in the local cache\n"
483	#ifndef RT_OS_WINDOWS
484	" -w, --wine-prefix\n"
485	" The prefix of the wine environment to use which has msdia140.dll set up for pdb.exe.\n"
486	" -b, --wine-bin\n"
487	" The wine binary path to run pdb.exe with.\n"
488	#endif
489	, RTPathFilename(pszArg0));
490
491	return RTEXITCODE_SUCCESS;
492	}
493
494
495	int main(int argc, char **argv)
496	{
497	int rc = RTR3InitExe(argc, &argv, 0);
498	if (RT_FAILURE(rc))
499	return RTMsgInitFailure(rc);
500
501	/*
502	* Parse the command line.
503	*/
504	static RTGETOPTDEF const s_aOptions[] =
505	{
506	{ "--address", 'a', RTGETOPT_REQ_STRING },
507	{ "--port", 'p', RTGETOPT_REQ_UINT16 },
508	{ "--sym-cache", 'c', RTGETOPT_REQ_STRING },
509	{ "--pdb-exe", 'x', RTGETOPT_REQ_STRING },
510	{ "--sym-srv-forward", 'f', RTGETOPT_REQ_STRING },
511	#ifndef RT_OS_WINDOWS
512	{ "--wine-prefix", 'w', RTGETOPT_REQ_STRING },
513	{ "--wine-bin", 'b', RTGETOPT_REQ_STRING },
514	#endif
515	{ "--help", 'h', RTGETOPT_REQ_NOTHING },
516	{ "--version", 'V', RTGETOPT_REQ_NOTHING },
517	};
518
519	RTGETOPTSTATE State;
520	rc = RTGetOptInit(&State, argc, argv, &s_aOptions[0], RT_ELEMENTS(s_aOptions), 1, RTGETOPTINIT_FLAGS_OPTS_FIRST);
521	if (RT_FAILURE(rc))
522	return RTMsgErrorExit(RTEXITCODE_FAILURE, "RTGetOptInit failed: %Rrc", rc);
523
524	const char *pszAddress = "localhost";
525	uint16_t uPort = 80;
526
527	RTGETOPTUNION ValueUnion;
528	int chOpt;
529	while ((chOpt = RTGetOpt(&State, &ValueUnion)) != 0)
530	{
531	switch (chOpt)
532	{
533	case 'a':
534	pszAddress = ValueUnion.psz;
535	break;
536	case 'p':
537	uPort = ValueUnion.u16;
538	break;
539	case 'c':
540	g_pszSymCacheRoot = ValueUnion.psz;
541	break;
542	case 'x':
543	g_pszPdbExe = ValueUnion.psz;
544	break;
545	case 'f':
546	g_pszSymSrvFwd = ValueUnion.psz;
547	break;
548	#ifndef RT_OS_WINDOWS
549	case 'w':
550	g_pszWinePrefix = ValueUnion.psz;
551	break;
552	case 'b':
553	g_pszWinePath = ValueUnion.psz;
554	break;
555	#endif
556
557	case 'h':
558	return rtDbgSymSrvUsage(argv[0]);
559	case 'V':
560	return rtDbgSymSrvVersion();
561	default:
562	return RTGetOptPrintError(chOpt, &ValueUnion);
563	}
564	}
565
566	if (!g_pszSymCacheRoot)
567	return RTMsgErrorExit(RTEXITCODE_FAILURE, "The symbol cache root needs to be set");
568
569	RTHTTPSERVER hHttpSrv;
570	rc = RTHttpServerCreate(&hHttpSrv, pszAddress, uPort, &g_SrvCallbacks,
571	NULL, 0);
572	if (RT_SUCCESS(rc))
573	{
574	RTPrintf("Starting HTTP server at %s:%RU16 ...\n", pszAddress, uPort);
575	RTPrintf("Root directory is '%s'\n", g_pszSymCacheRoot);
576
577	RTPrintf("Running HTTP server ...\n");
578
579	for (;;)
580	{
581	RTThreadSleep(1000);
582
583	if (g_fCanceled)
584	break;
585	}
586
587	RTPrintf("Stopping HTTP server ...\n");
588
589	int rc2 = RTHttpServerDestroy(hHttpSrv);
590	if (RT_SUCCESS(rc))
591	rc = rc2;
592
593	RTPrintf("Stopped HTTP server\n");
594	}
595	else
596	return RTMsgErrorExit(RTEXITCODE_FAILURE, "RTHttpServerCreate failed: %Rrc", rc);
597
598	return RTEXITCODE_SUCCESS;
599	}
600

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source: vbox/trunk/src/VBox/Runtime/tools/RTDbgSymSrv.cpp@ 96407

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