CFGM.cpp@ 24323

Last change on this file since 24323 was 23587, checked in by vboxsync, 15 years ago
CFGM: Optimize the lookups.
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1	/* $Id: CFGM.cpp 23587 2009-10-06 17:10:52Z vboxsync $ */
2	/** @file
3	* CFGM - Configuration Manager.
4	*/
5
6	/*
7	* Copyright (C) 2006-2008 Sun Microsystems, Inc.
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	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
18	* Clara, CA 95054 USA or visit http://www.sun.com if you need
19	* additional information or have any questions.
20	*/
21
22	/** @page pg_cfgm CFGM - The Configuration Manager
23	*
24	* The configuration manager is a directory containing the VM configuration at
25	* run time. It works in a manner similar to the windows registry - it's like a
26	* file system hierarchy, but the files (values) live in a separate name space
27	* and can include the path separators.
28	*
29	* The configuration is normally created via a callback passed to VMR3Create()
30	* via the pfnCFGMConstructor parameter. To make testcase writing a bit simpler,
31	* we allow the callback to be NULL, in which case a simple default
32	* configuration will be created by CFGMR3ConstructDefaultTree(). The
33	* Console::configConstructor() method in Main/ConsoleImpl2.cpp creates the
34	* configuration from the XML.
35	*
36	* Devices, drivers, services and other PDM stuff are given their own subtree
37	* where they are protected from accessing information of any parents. This is
38	* is implemented via the CFGMR3SetRestrictedRoot() API.
39	*
40	* Data validation out over the basic primitives is left to the caller. The
41	* caller is in a better position to know the proper validation rules of the
42	* individual properties.
43	*
44	* @see grp_cfgm
45	*
46	*
47	* @section sec_cfgm_primitives Data Primitives
48	*
49	* CFGM supports the following data primitives:
50	* - Integers. Representation is unsigned 64-bit. Boolean, unsigned and
51	* small integers, and pointers are all represented using this primitive.
52	* - Zero terminated character strings. These are of course UTF-8.
53	* - Variable length byte strings. This can be used to get/put binary
54	* objects like for instance RTMAC.
55	*
56	*/
57
58	/*******************************************************************************
59	* Header Files *
60	*******************************************************************************/
61	#define LOG_GROUP LOG_GROUP_CFGM
62	#include <VBox/cfgm.h>
63	#include <VBox/dbgf.h>
64	#include <VBox/mm.h>
65	#include "CFGMInternal.h"
66	#include <VBox/vm.h>
67	#include <VBox/err.h>
68
69	#include <VBox/log.h>
70	#include <iprt/assert.h>
71	#include <iprt/string.h>
72	#include <iprt/uuid.h>
73
74
75	/*******************************************************************************
76	* Internal Functions *
77	*******************************************************************************/
78	static void cfgmR3DumpPath(PCFGMNODE pNode, PCDBGFINFOHLP pHlp);
79	static void cfgmR3Dump(PCFGMNODE pRoot, unsigned iLevel, PCDBGFINFOHLP pHlp);
80	static DECLCALLBACK(void) cfgmR3Info(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
81	static int cfgmR3ResolveNode(PCFGMNODE pNode, const char pszPath, PCFGMNODE ppChild);
82	static int cfgmR3ResolveLeaf(PCFGMNODE pNode, const char pszName, PCFGMLEAF ppLeaf);
83	static int cfgmR3InsertLeaf(PCFGMNODE pNode, const char pszName, PCFGMLEAF ppLeaf);
84	static void cfgmR3RemoveLeaf(PCFGMNODE pNode, PCFGMLEAF pLeaf);
85	static void cfgmR3FreeValue(PCFGMLEAF pLeaf);
86
87
88
89	/**
90	* Constructs the configuration for the VM.
91	*
92	* @returns VBox status code.
93	* @param pVM Pointer to VM which configuration has not yet been loaded.
94	* @param pfnCFGMConstructor Pointer to callback function for constructing the VM configuration tree.
95	* This is called in the EM.
96	* @param pvUser The user argument passed to pfnCFGMConstructor.
97	* @thread EMT.
98	*/
99	VMMR3DECL(int) CFGMR3Init(PVM pVM, PFNCFGMCONSTRUCTOR pfnCFGMConstructor, void *pvUser)
100	{
101	LogFlow(("CFGMR3Init: pfnCFGMConstructor=%p pvUser=%p\n", pfnCFGMConstructor, pvUser));
102
103	/*
104	* Init data members.
105	*/
106	pVM->cfgm.s.pRoot = NULL;
107
108	/*
109	* Register DBGF into item.
110	*/
111	int rc = DBGFR3InfoRegisterInternal(pVM, "cfgm", "Dumps a part of the CFGM tree. The argument indicates where to start.", cfgmR3Info);
112	AssertRCReturn(rc,rc);
113
114	/*
115	* Root Node.
116	*/
117	PCFGMNODE pRoot = (PCFGMNODE)MMR3HeapAllocZ(pVM, MM_TAG_CFGM, sizeof(*pRoot));
118	if (!pRoot)
119	return VERR_NO_MEMORY;
120	pRoot->pVM = pVM;
121	pRoot->cchName = 0;
122	pVM->cfgm.s.pRoot = pRoot;
123
124	/*
125	* Call the constructor if specified, if not use the default one.
126	*/
127	if (pfnCFGMConstructor)
128	rc = pfnCFGMConstructor(pVM, pvUser);
129	else
130	rc = CFGMR3ConstructDefaultTree(pVM);
131	if (RT_SUCCESS(rc))
132	{
133	Log(("CFGMR3Init: Successfully constructed the configuration\n"));
134	CFGMR3Dump(CFGMR3GetRoot(pVM));
135	}
136	else
137	AssertMsgFailed(("Constructor failed with rc=%Rrc pfnCFGMConstructor=%p\n", rc, pfnCFGMConstructor));
138
139	return rc;
140	}
141
142
143	/**
144	* Terminates the configuration manager.
145	*
146	* @returns VBox status code.
147	* @param pVM VM handle.
148	*/
149	VMMR3DECL(int) CFGMR3Term(PVM pVM)
150	{
151	CFGMR3RemoveNode(pVM->cfgm.s.pRoot);
152	pVM->cfgm.s.pRoot = NULL;
153	return 0;
154	}
155
156
157	/**
158	* Gets the root node for the VM.
159	*
160	* @returns Pointer to root node.
161	* @param pVM VM handle.
162	*/
163	VMMR3DECL(PCFGMNODE) CFGMR3GetRoot(PVM pVM)
164	{
165	return pVM->cfgm.s.pRoot;
166	}
167
168
169	/**
170	* Gets the parent of a CFGM node.
171	*
172	* @returns Pointer to the parent node.
173	* @returns NULL if pNode is Root or pNode is the start of a
174	* restricted subtree (use CFGMr3GetParentEx() for that).
175	*
176	* @param pNode The node which parent we query.
177	*/
178	VMMR3DECL(PCFGMNODE) CFGMR3GetParent(PCFGMNODE pNode)
179	{
180	if (pNode && !pNode->fRestrictedRoot)
181	return pNode->pParent;
182	return NULL;
183	}
184
185
186	/**
187	* Gets the parent of a CFGM node.
188	*
189	* @returns Pointer to the parent node.
190	* @returns NULL if pNode is Root or pVM is not correct.
191	*
192	* @param pVM The VM handle, used as token that the caller is trusted.
193	* @param pNode The node which parent we query.
194	*/
195	VMMR3DECL(PCFGMNODE) CFGMR3GetParentEx(PVM pVM, PCFGMNODE pNode)
196	{
197	if (pNode && pNode->pVM == pVM)
198	return pNode->pParent;
199	return NULL;
200	}
201
202
203	/**
204	* Query a child node.
205	*
206	* @returns Pointer to the specified node.
207	* @returns NULL if node was not found or pNode is NULL.
208	* @param pNode Node pszPath is relative to.
209	* @param pszPath Path to the child node or pNode.
210	* It's good style to end this with '/'.
211	*/
212	VMMR3DECL(PCFGMNODE) CFGMR3GetChild(PCFGMNODE pNode, const char *pszPath)
213	{
214	PCFGMNODE pChild;
215	int rc = cfgmR3ResolveNode(pNode, pszPath, &pChild);
216	if (RT_SUCCESS(rc))
217	return pChild;
218	return NULL;
219	}
220
221
222	/**
223	* Query a child node by a format string.
224	*
225	* @returns Pointer to the specified node.
226	* @returns NULL if node was not found or pNode is NULL.
227	* @param pNode Node pszPath is relative to.
228	* @param pszPathFormat Path to the child node or pNode.
229	* It's good style to end this with '/'.
230	* @param ... Arguments to pszPathFormat.
231	*/
232	VMMR3DECL(PCFGMNODE) CFGMR3GetChildF(PCFGMNODE pNode, const char *pszPathFormat, ...)
233	{
234	va_list Args;
235	va_start(Args, pszPathFormat);
236	PCFGMNODE pRet = CFGMR3GetChildFV(pNode, pszPathFormat, Args);
237	va_end(Args);
238	return pRet;
239	}
240
241
242	/**
243	* Query a child node by a format string.
244	*
245	* @returns Pointer to the specified node.
246	* @returns NULL if node was not found or pNode is NULL.
247	* @param pNode Node pszPath is relative to.
248	* @param pszPathFormat Path to the child node or pNode.
249	* It's good style to end this with '/'.
250	* @param Args Arguments to pszPathFormat.
251	*/
252	VMMR3DECL(PCFGMNODE) CFGMR3GetChildFV(PCFGMNODE pNode, const char *pszPathFormat, va_list Args)
253	{
254	char *pszPath;
255	RTStrAPrintfV(&pszPath, pszPathFormat, Args);
256	if (pszPath)
257	{
258	PCFGMNODE pChild;
259	int rc = cfgmR3ResolveNode(pNode, pszPath, &pChild);
260	if (RT_SUCCESS(rc))
261	return pChild;
262	RTStrFree(pszPath);
263	}
264	return NULL;
265	}
266
267
268	/**
269	* Gets the first child node.
270	* Use this to start an enumeration of child nodes.
271	*
272	* @returns Pointer to the first child.
273	* @returns NULL if no children.
274	* @param pNode Node to enumerate children for.
275	*/
276	VMMR3DECL(PCFGMNODE) CFGMR3GetFirstChild(PCFGMNODE pNode)
277	{
278	return pNode ? pNode->pFirstChild : NULL;
279	}
280
281
282	/**
283	* Gets the next sibling node.
284	* Use this to continue an enumeration.
285	*
286	* @returns Pointer to the first child.
287	* @returns NULL if no children.
288	* @param pCur Node to returned by a call to CFGMR3GetFirstChild()
289	* or successive calls to this function.
290	*/
291	VMMR3DECL(PCFGMNODE) CFGMR3GetNextChild(PCFGMNODE pCur)
292	{
293	return pCur ? pCur->pNext : NULL;
294	}
295
296
297	/**
298	* Gets the name of the current node.
299	* (Needed for enumeration.)
300	*
301	* @returns VBox status code.
302	* @param pCur Node to returned by a call to CFGMR3GetFirstChild()
303	* or successive calls to CFGMR3GetNextChild().
304	* @param pszName Where to store the node name.
305	* @param cchName Size of the buffer pointed to by pszName (with terminator).
306	*/
307	VMMR3DECL(int) CFGMR3GetName(PCFGMNODE pCur, char *pszName, size_t cchName)
308	{
309	int rc;
310	if (pCur)
311	{
312	if (cchName > pCur->cchName)
313	{
314	rc = VINF_SUCCESS;
315	memcpy(pszName, pCur->szName, pCur->cchName + 1);
316	}
317	else
318	rc = VERR_CFGM_NOT_ENOUGH_SPACE;
319	}
320	else
321	rc = VERR_CFGM_NO_NODE;
322	return rc;
323	}
324
325
326	/**
327	* Gets the length of the current node's name.
328	* (Needed for enumeration.)
329	*
330	* @returns Node name length in bytes including the terminating null char.
331	* @returns 0 if pCur is NULL.
332	* @param pCur Node to returned by a call to CFGMR3GetFirstChild()
333	* or successive calls to CFGMR3GetNextChild().
334	*/
335	VMMR3DECL(size_t) CFGMR3GetNameLen(PCFGMNODE pCur)
336	{
337	return pCur ? pCur->cchName + 1 : 0;
338	}
339
340
341	/**
342	* Validates that the child nodes are within a set of valid names.
343	*
344	* @returns true if all names are found in pszzAllowed.
345	* @returns false if not.
346	* @param pNode The node which children should be examined.
347	* @param pszzValid List of valid names separated by '\\0' and ending with
348	* a double '\\0'.
349	*/
350	VMMR3DECL(bool) CFGMR3AreChildrenValid(PCFGMNODE pNode, const char *pszzValid)
351	{
352	if (pNode)
353	{
354	for (PCFGMNODE pChild = pNode->pFirstChild; pChild; pChild = pChild->pNext)
355	{
356	/* search pszzValid for the name */
357	const char *psz = pszzValid;
358	while (*psz)
359	{
360	size_t cch = strlen(psz);
361	if ( cch == pChild->cchName
362	&& !memcmp(psz, pChild->szName, cch))
363	break;
364
365	/* next */
366	psz += cch + 1;
367	}
368
369	/* if at end of pszzValid we didn't find it => failure */
370	if (!*psz)
371	{
372	AssertMsgFailed(("Couldn't find '%s' in the valid values\n", pChild->szName));
373	return false;
374	}
375	}
376	}
377
378	/* all ok. */
379	return true;
380	}
381
382
383	/**
384	* Gets the first value of a node.
385	* Use this to start an enumeration of values.
386	*
387	* @returns Pointer to the first value.
388	* @param pCur The node (Key) which values to enumerate.
389	*/
390	VMMR3DECL(PCFGMLEAF) CFGMR3GetFirstValue(PCFGMNODE pCur)
391	{
392	return pCur ? pCur->pFirstLeaf : NULL;
393	}
394
395	/**
396	* Gets the next value in enumeration.
397	*
398	* @returns Pointer to the next value.
399	* @param pCur The current value as returned by this function or CFGMR3GetFirstValue().
400	*/
401	VMMR3DECL(PCFGMLEAF) CFGMR3GetNextValue(PCFGMLEAF pCur)
402	{
403	return pCur ? pCur->pNext : NULL;
404	}
405
406	/**
407	* Get the value name.
408	* (Needed for enumeration.)
409	*
410	* @returns VBox status code.
411	* @param pCur Value returned by a call to CFGMR3GetFirstValue()
412	* or successive calls to CFGMR3GetNextValue().
413	* @param pszName Where to store the value name.
414	* @param cchName Size of the buffer pointed to by pszName (with terminator).
415	*/
416	VMMR3DECL(int) CFGMR3GetValueName(PCFGMLEAF pCur, char *pszName, size_t cchName)
417	{
418	int rc;
419	if (pCur)
420	{
421	if (cchName > pCur->cchName)
422	{
423	rc = VINF_SUCCESS;
424	memcpy(pszName, pCur->szName, pCur->cchName + 1);
425	}
426	else
427	rc = VERR_CFGM_NOT_ENOUGH_SPACE;
428	}
429	else
430	rc = VERR_CFGM_NO_NODE;
431	return rc;
432	}
433
434
435	/**
436	* Gets the length of the current node's name.
437	* (Needed for enumeration.)
438	*
439	* @returns Value name length in bytes including the terminating null char.
440	* @returns 0 if pCur is NULL.
441	* @param pCur Value returned by a call to CFGMR3GetFirstValue()
442	* or successive calls to CFGMR3GetNextValue().
443	*/
444	VMMR3DECL(size_t) CFGMR3GetValueNameLen(PCFGMLEAF pCur)
445	{
446	return pCur ? pCur->cchName + 1 : 0;
447	}
448
449
450	/**
451	* Gets the value type.
452	* (For enumeration.)
453	*
454	* @returns VBox status code.
455	* @param pCur Value returned by a call to CFGMR3GetFirstValue()
456	* or successive calls to CFGMR3GetNextValue().
457	*/
458	VMMR3DECL(CFGMVALUETYPE) CFGMR3GetValueType(PCFGMLEAF pCur)
459	{
460	Assert(pCur);
461	return pCur->enmType;
462	}
463
464
465	/**
466	* Validates that the values are within a set of valid names.
467	*
468	* @returns true if all names are found in pszzAllowed.
469	* @returns false if not.
470	* @param pNode The node which values should be examined.
471	* @param pszzValid List of valid names separated by '\\0' and ending with
472	* a double '\\0'.
473	*/
474	VMMR3DECL(bool) CFGMR3AreValuesValid(PCFGMNODE pNode, const char *pszzValid)
475	{
476	if (pNode)
477	{
478	for (PCFGMLEAF pLeaf = pNode->pFirstLeaf; pLeaf; pLeaf = pLeaf->pNext)
479	{
480	/* search pszzValid for the name */
481	const char *psz = pszzValid;
482	while (*psz)
483	{
484	size_t cch = strlen(psz);
485	if ( cch == pLeaf->cchName
486	&& !memcmp(psz, pLeaf->szName, cch))
487	break;
488
489	/* next */
490	psz += cch + 1;
491	}
492
493	/* if at end of pszzValid we didn't find it => failure */
494	if (!*psz)
495	{
496	AssertMsgFailed(("Couldn't find '%s' in the valid values\n", pLeaf->szName));
497	return false;
498	}
499	}
500	}
501
502	/* all ok. */
503	return true;
504	}
505
506
507
508	/**
509	* Query value type.
510	*
511	* @returns VBox status code.
512	* @param pNode Which node to search for pszName in.
513	* @param pszName Name of an integer value.
514	* @param penmType Where to store the type.
515	*/
516	VMMR3DECL(int) CFGMR3QueryType(PCFGMNODE pNode, const char *pszName, PCFGMVALUETYPE penmType)
517	{
518	PCFGMLEAF pLeaf;
519	int rc = cfgmR3ResolveLeaf(pNode, pszName, &pLeaf);
520	if (RT_SUCCESS(rc))
521	{
522	if (penmType)
523	*penmType = pLeaf->enmType;
524	}
525	return rc;
526	}
527
528
529	/**
530	* Query value size.
531	* This works on all types of values.
532	*
533	* @returns VBox status code.
534	* @param pNode Which node to search for pszName in.
535	* @param pszName Name of an integer value.
536	* @param pcb Where to store the value size.
537	*/
538	VMMR3DECL(int) CFGMR3QuerySize(PCFGMNODE pNode, const char pszName, size_t pcb)
539	{
540	PCFGMLEAF pLeaf;
541	int rc = cfgmR3ResolveLeaf(pNode, pszName, &pLeaf);
542	if (RT_SUCCESS(rc))
543	{
544	switch (pLeaf->enmType)
545	{
546	case CFGMVALUETYPE_INTEGER:
547	*pcb = sizeof(pLeaf->Value.Integer.u64);
548	break;
549
550	case CFGMVALUETYPE_STRING:
551	*pcb = pLeaf->Value.String.cb;
552	break;
553
554	case CFGMVALUETYPE_BYTES:
555	*pcb = pLeaf->Value.Bytes.cb;
556	break;
557
558	default:
559	rc = VERR_INTERNAL_ERROR;
560	AssertMsgFailed(("Invalid value type %d\n", pLeaf->enmType));
561	break;
562	}
563	}
564	return rc;
565	}
566
567
568	/**
569	* Query integer value.
570	*
571	* @returns VBox status code.
572	* @param pNode Which node to search for pszName in.
573	* @param pszName Name of an integer value.
574	* @param pu64 Where to store the integer value.
575	*/
576	VMMR3DECL(int) CFGMR3QueryInteger(PCFGMNODE pNode, const char pszName, uint64_t pu64)
577	{
578	PCFGMLEAF pLeaf;
579	int rc = cfgmR3ResolveLeaf(pNode, pszName, &pLeaf);
580	if (RT_SUCCESS(rc))
581	{
582	if (pLeaf->enmType == CFGMVALUETYPE_INTEGER)
583	*pu64 = pLeaf->Value.Integer.u64;
584	else
585	rc = VERR_CFGM_NOT_INTEGER;
586	}
587	return rc;
588	}
589
590
591	/**
592	* Query integer value with default.
593	*
594	* @returns VBox status code.
595	* @param pNode Which node to search for pszName in.
596	* @param pszName Name of an integer value.
597	* @param pu64 Where to store the integer value. This is set to the default on failure.
598	* @param u64Def The default value. This is always set.
599	*/
600	VMMR3DECL(int) CFGMR3QueryIntegerDef(PCFGMNODE pNode, const char pszName, uint64_t pu64, uint64_t u64Def)
601	{
602	PCFGMLEAF pLeaf;
603	int rc = cfgmR3ResolveLeaf(pNode, pszName, &pLeaf);
604	if (RT_SUCCESS(rc))
605	{
606	if (pLeaf->enmType == CFGMVALUETYPE_INTEGER)
607	*pu64 = pLeaf->Value.Integer.u64;
608	else
609	rc = VERR_CFGM_NOT_INTEGER;
610	}
611
612	if (RT_FAILURE(rc))
613	{
614	*pu64 = u64Def;
615	if (rc == VERR_CFGM_VALUE_NOT_FOUND \|\| rc == VERR_CFGM_NO_PARENT)
616	rc = VINF_SUCCESS;
617	}
618
619	return rc;
620	}
621
622
623	/**
624	* Query zero terminated character value.
625	*
626	* @returns VBox status code.
627	* @param pNode Which node to search for pszName in.
628	* @param pszName Name of a zero terminate character value.
629	* @param pszString Where to store the string.
630	* @param cchString Size of the string buffer. (Includes terminator.)
631	*/
632	VMMR3DECL(int) CFGMR3QueryString(PCFGMNODE pNode, const char pszName, char pszString, size_t cchString)
633	{
634	PCFGMLEAF pLeaf;
635	int rc = cfgmR3ResolveLeaf(pNode, pszName, &pLeaf);
636	if (RT_SUCCESS(rc))
637	{
638	if (pLeaf->enmType == CFGMVALUETYPE_STRING)
639	{
640	size_t cbSrc = pLeaf->Value.String.cb;
641	if (cchString >= cbSrc)
642	{
643	memcpy(pszString, pLeaf->Value.String.psz, cbSrc);
644	memset(pszString + cbSrc, 0, cchString - cbSrc);
645	}
646	else
647	rc = VERR_CFGM_NOT_ENOUGH_SPACE;
648	}
649	else
650	rc = VERR_CFGM_NOT_STRING;
651	}
652	return rc;
653	}
654
655
656	/**
657	* Query zero terminated character value with default.
658	*
659	* @returns VBox status code.
660	* @param pNode Which node to search for pszName in.
661	* @param pszName Name of a zero terminate character value.
662	* @param pszString Where to store the string. This will not be set on overflow error.
663	* @param cchString Size of the string buffer. (Includes terminator.)
664	* @param pszDef The default value.
665	*/
666	VMMR3DECL(int) CFGMR3QueryStringDef(PCFGMNODE pNode, const char pszName, char pszString, size_t cchString, const char *pszDef)
667	{
668	PCFGMLEAF pLeaf;
669	int rc = cfgmR3ResolveLeaf(pNode, pszName, &pLeaf);
670	if (RT_SUCCESS(rc))
671	{
672	if (pLeaf->enmType == CFGMVALUETYPE_STRING)
673	{
674	size_t cbSrc = pLeaf->Value.String.cb;
675	if (cchString >= cbSrc)
676	{
677	memcpy(pszString, pLeaf->Value.String.psz, cbSrc);
678	memset(pszString + cbSrc, 0, cchString - cbSrc);
679	}
680	else
681	rc = VERR_CFGM_NOT_ENOUGH_SPACE;
682	}
683	else
684	rc = VERR_CFGM_NOT_STRING;
685	}
686
687	if (RT_FAILURE(rc) && rc != VERR_CFGM_NOT_ENOUGH_SPACE)
688	{
689	size_t cchDef = strlen(pszDef);
690	if (cchString > cchDef)
691	{
692	memcpy(pszString, pszDef, cchDef);
693	memset(pszString + cchDef, 0, cchString - cchDef);
694	if (rc == VERR_CFGM_VALUE_NOT_FOUND \|\| rc == VERR_CFGM_NO_PARENT)
695	rc = VINF_SUCCESS;
696	}
697	else if (rc == VERR_CFGM_VALUE_NOT_FOUND \|\| rc == VERR_CFGM_NO_PARENT)
698	rc = VERR_CFGM_NOT_ENOUGH_SPACE;
699	}
700
701	return rc;
702	}
703
704
705	/**
706	* Query byte string value.
707	*
708	* @returns VBox status code.
709	* @param pNode Which node to search for pszName in.
710	* @param pszName Name of a byte string value.
711	* @param pvData Where to store the binary data.
712	* @param cbData Size of buffer pvData points too.
713	*/
714	VMMR3DECL(int) CFGMR3QueryBytes(PCFGMNODE pNode, const char pszName, void pvData, size_t cbData)
715	{
716	PCFGMLEAF pLeaf;
717	int rc = cfgmR3ResolveLeaf(pNode, pszName, &pLeaf);
718	if (RT_SUCCESS(rc))
719	{
720	if (pLeaf->enmType == CFGMVALUETYPE_BYTES)
721	{
722	if (cbData >= pLeaf->Value.Bytes.cb)
723	{
724	memcpy(pvData, pLeaf->Value.Bytes.pau8, pLeaf->Value.Bytes.cb);
725	memset((char *)pvData + pLeaf->Value.Bytes.cb, 0, cbData - pLeaf->Value.Bytes.cb);
726	}
727	else
728	rc = VERR_CFGM_NOT_ENOUGH_SPACE;
729	}
730	else
731	rc = VERR_CFGM_NOT_BYTES;
732	}
733	return rc;
734	}
735
736
737	/**
738	* Populates the CFGM tree with the default configuration.
739	*
740	* This assumes an empty tree and is intended for testcases and such that only
741	* need to do very small adjustments to the config.
742	*
743	* @returns VBox status code.
744	* @param pVM VM handle.
745	*/
746	VMMR3DECL(int) CFGMR3ConstructDefaultTree(PVM pVM)
747	{
748	int rc;
749	int rcAll = VINF_SUCCESS;
750	#define UPDATERC() do { if (RT_FAILURE(rc) && RT_SUCCESS(rcAll)) rcAll = rc; } while (0)
751
752	PCFGMNODE pRoot = CFGMR3GetRoot(pVM);
753	AssertReturn(pRoot, VERR_WRONG_ORDER);
754
755	/*
756	* Create VM default values.
757	*/
758	rc = CFGMR3InsertString(pRoot, "Name", "Default VM");
759	UPDATERC();
760	rc = CFGMR3InsertInteger(pRoot, "RamSize", 128U * _1M);
761	UPDATERC();
762	rc = CFGMR3InsertInteger(pRoot, "RamHoleSize", 512U * _1M);
763	UPDATERC();
764	rc = CFGMR3InsertInteger(pRoot, "TimerMillies", 10);
765	UPDATERC();
766	rc = CFGMR3InsertInteger(pRoot, "RawR3Enabled", 1);
767	UPDATERC();
768	/** @todo CFGM Defaults: RawR0, PATMEnabled and CASMEnabled needs attention later. */
769	rc = CFGMR3InsertInteger(pRoot, "RawR0Enabled", 1);
770	UPDATERC();
771	rc = CFGMR3InsertInteger(pRoot, "PATMEnabled", 1);
772	UPDATERC();
773	rc = CFGMR3InsertInteger(pRoot, "CSAMEnabled", 1);
774	UPDATERC();
775
776	/*
777	* PDM.
778	*/
779	PCFGMNODE pPdm;
780	rc = CFGMR3InsertNode(pRoot, "PDM", &pPdm);
781	UPDATERC();
782	PCFGMNODE pDevices = NULL;
783	rc = CFGMR3InsertNode(pPdm, "Devices", &pDevices);
784	UPDATERC();
785	rc = CFGMR3InsertInteger(pDevices, "LoadBuiltin", 1); /* boolean */
786	UPDATERC();
787	PCFGMNODE pDrivers = NULL;
788	rc = CFGMR3InsertNode(pPdm, "Drivers", &pDrivers);
789	UPDATERC();
790	rc = CFGMR3InsertInteger(pDrivers, "LoadBuiltin", 1); /* boolean */
791	UPDATERC();
792
793
794	/*
795	* Devices
796	*/
797	pDevices = NULL;
798	rc = CFGMR3InsertNode(pRoot, "Devices", &pDevices);
799	UPDATERC();
800	/* device */
801	PCFGMNODE pDev = NULL;
802	PCFGMNODE pInst = NULL;
803	PCFGMNODE pCfg = NULL;
804	#if 0
805	PCFGMNODE pLunL0 = NULL;
806	PCFGMNODE pLunL1 = NULL;
807	#endif
808
809	/*
810	* PC Arch.
811	*/
812	rc = CFGMR3InsertNode(pDevices, "pcarch", &pDev);
813	UPDATERC();
814	rc = CFGMR3InsertNode(pDev, "0", &pInst);
815	UPDATERC();
816	rc = CFGMR3InsertInteger(pInst, "Trusted", 1); /* boolean */
817	UPDATERC();
818	rc = CFGMR3InsertNode(pInst, "Config", &pCfg);
819	UPDATERC();
820
821	/*
822	* PC Bios.
823	*/
824	rc = CFGMR3InsertNode(pDevices, "pcbios", &pDev);
825	UPDATERC();
826	rc = CFGMR3InsertNode(pDev, "0", &pInst);
827	UPDATERC();
828	rc = CFGMR3InsertInteger(pInst, "Trusted", 1); /* boolean */
829	UPDATERC();
830	rc = CFGMR3InsertNode(pInst, "Config", &pCfg);
831	UPDATERC();
832	rc = CFGMR3InsertInteger(pCfg, "RamSize", 128U * _1M);
833	UPDATERC();
834	rc = CFGMR3InsertInteger(pCfg, "RamHoleSize", 512U * _1M);
835	UPDATERC();
836	rc = CFGMR3InsertString(pCfg, "BootDevice0", "IDE");
837	UPDATERC();
838	rc = CFGMR3InsertString(pCfg, "BootDevice1", "NONE");
839	UPDATERC();
840	rc = CFGMR3InsertString(pCfg, "BootDevice2", "NONE");
841	UPDATERC();
842	rc = CFGMR3InsertString(pCfg, "BootDevice3", "NONE");
843	UPDATERC();
844	rc = CFGMR3InsertString(pCfg, "HardDiskDevice", "piix3ide");
845	UPDATERC();
846	rc = CFGMR3InsertString(pCfg, "FloppyDevice", "");
847	UPDATERC();
848	RTUUID Uuid;
849	RTUuidClear(&Uuid);
850	rc = CFGMR3InsertBytes(pCfg, "UUID", &Uuid, sizeof(Uuid));
851	UPDATERC();
852
853	/*
854	* PCI bus.
855	*/
856	rc = CFGMR3InsertNode(pDevices, "pci", &pDev); /* piix3 */
857	UPDATERC();
858	rc = CFGMR3InsertNode(pDev, "0", &pInst);
859	UPDATERC();
860	rc = CFGMR3InsertInteger(pInst, "Trusted", 1); /* boolean */
861	UPDATERC();
862	rc = CFGMR3InsertNode(pInst, "Config", &pCfg);
863	UPDATERC();
864
865	/*
866	* PS/2 keyboard & mouse
867	*/
868	rc = CFGMR3InsertNode(pDevices, "pckbd", &pDev);
869	UPDATERC();
870	rc = CFGMR3InsertNode(pDev, "0", &pInst);
871	UPDATERC();
872	rc = CFGMR3InsertNode(pInst, "Config", &pCfg);
873	UPDATERC();
874	#if 0
875	rc = CFGMR3InsertNode(pInst, "LUN#0", &pLunL0);
876	UPDATERC();
877	rc = CFGMR3InsertString(pLunL0, "Driver", "KeyboardQueue");
878	UPDATERC();
879	rc = CFGMR3InsertNode(pLunL0, "Config", &pCfg);
880	UPDATERC();
881	rc = CFGMR3InsertInteger(pCfg, "QueueSize", 64);
882	UPDATERC();
883	rc = CFGMR3InsertNode(pLunL0, "AttachedDriver", &pLunL1);
884	UPDATERC();
885	rc = CFGMR3InsertString(pLunL1, "Driver", "MainKeyboard");
886	UPDATERC();
887	rc = CFGMR3InsertNode(pLunL1, "Config", &pCfg);
888	UPDATERC();
889	#endif
890	#if 0
891	rc = CFGMR3InsertNode(pInst, "LUN#1", &pLunL0);
892	UPDATERC();
893	rc = CFGMR3InsertString(pLunL0, "Driver", "MouseQueue");
894	UPDATERC();
895	rc = CFGMR3InsertNode(pLunL0, "Config", &pCfg);
896	UPDATERC();
897	rc = CFGMR3InsertInteger(pCfg, "QueueSize", 128);
898	UPDATERC();
899	rc = CFGMR3InsertNode(pLunL0, "AttachedDriver", &pLunL1);
900	UPDATERC();
901	rc = CFGMR3InsertString(pLunL1, "Driver", "MainMouse");
902	UPDATERC();
903	rc = CFGMR3InsertNode(pLunL1, "Config", &pCfg);
904	UPDATERC();
905	#endif
906
907	/*
908	* i8254 Programmable Interval Timer And Dummy Speaker
909	*/
910	rc = CFGMR3InsertNode(pDevices, "i8254", &pDev);
911	UPDATERC();
912	rc = CFGMR3InsertNode(pDev, "0", &pInst);
913	UPDATERC();
914	#ifdef DEBUG
915	rc = CFGMR3InsertInteger(pInst, "Trusted", 1); /* boolean */
916	UPDATERC();
917	#endif
918	rc = CFGMR3InsertNode(pInst, "Config", &pCfg);
919	UPDATERC();
920
921	/*
922	* i8259 Programmable Interrupt Controller.
923	*/
924	rc = CFGMR3InsertNode(pDevices, "i8259", &pDev);
925	UPDATERC();
926	rc = CFGMR3InsertNode(pDev, "0", &pInst);
927	UPDATERC();
928	rc = CFGMR3InsertInteger(pInst, "Trusted", 1); /* boolean */
929	UPDATERC();
930	rc = CFGMR3InsertNode(pInst, "Config", &pCfg);
931	UPDATERC();
932
933	/*
934	* RTC MC146818.
935	*/
936	rc = CFGMR3InsertNode(pDevices, "mc146818", &pDev);
937	UPDATERC();
938	rc = CFGMR3InsertNode(pDev, "0", &pInst);
939	UPDATERC();
940	rc = CFGMR3InsertNode(pInst, "Config", &pCfg);
941	UPDATERC();
942
943	/*
944	* VGA.
945	*/
946	rc = CFGMR3InsertNode(pDevices, "vga", &pDev);
947	UPDATERC();
948	rc = CFGMR3InsertNode(pDev, "0", &pInst);
949	UPDATERC();
950	rc = CFGMR3InsertInteger(pInst, "Trusted", 1); /* boolean */
951	UPDATERC();
952	rc = CFGMR3InsertNode(pInst, "Config", &pCfg);
953	UPDATERC();
954	rc = CFGMR3InsertInteger(pCfg, "VRamSize", 4 * _1M);
955	UPDATERC();
956
957	/* Bios logo. */
958	rc = CFGMR3InsertInteger(pCfg, "FadeIn", 1);
959	UPDATERC();
960	rc = CFGMR3InsertInteger(pCfg, "FadeOut", 1);
961	UPDATERC();
962	rc = CFGMR3InsertInteger(pCfg, "LogoTime", 0);
963	UPDATERC();
964	rc = CFGMR3InsertString(pCfg, "LogoFile", "");
965	UPDATERC();
966
967	#if 0
968	rc = CFGMR3InsertNode(pInst, "LUN#0", &pLunL0);
969	UPDATERC();
970	rc = CFGMR3InsertString(pLunL0, "Driver", "MainDisplay");
971	UPDATERC();
972	#endif
973
974	/*
975	* IDE controller.
976	*/
977	rc = CFGMR3InsertNode(pDevices, "piix3ide", &pDev); /* piix3 */
978	UPDATERC();
979	rc = CFGMR3InsertNode(pDev, "0", &pInst);
980	UPDATERC();
981	rc = CFGMR3InsertInteger(pInst, "Trusted", 1); /* boolean */
982	UPDATERC();
983	rc = CFGMR3InsertNode(pInst, "Config", &pCfg);
984	UPDATERC();
985
986
987
988	/*
989	* ...
990	*/
991
992	#undef UPDATERC
993	return rcAll;
994	}
995
996
997
998
999	/**
1000	* Resolves a path reference to a child node.
1001	*
1002	* @returns VBox status code.
1003	* @param pNode Which node to search for pszName in.
1004	* @param pszPath Path to the child node.
1005	* @param ppChild Where to store the pointer to the child node.
1006	*/
1007	static int cfgmR3ResolveNode(PCFGMNODE pNode, const char pszPath, PCFGMNODE ppChild)
1008	{
1009	if (!pNode)
1010	return VERR_CFGM_NO_PARENT;
1011	PCFGMNODE pChild = NULL;
1012	for (;;)
1013	{
1014	/* skip leading slashes. */
1015	while (*pszPath == '/')
1016	pszPath++;
1017
1018	/* End of path? */
1019	if (!*pszPath)
1020	{
1021	if (!pChild)
1022	return VERR_CFGM_INVALID_CHILD_PATH;
1023	*ppChild = pChild;
1024	return VINF_SUCCESS;
1025	}
1026
1027	/* find end of component. */
1028	const char *pszNext = strchr(pszPath, '/');
1029	if (!pszNext)
1030	pszNext = strchr(pszPath, '\0');
1031	RTUINT cchName = pszNext - pszPath;
1032
1033	/* search child list. */
1034	pChild = pNode->pFirstChild;
1035	for ( ; pChild; pChild = pChild->pNext)
1036	if (pChild->cchName == cchName)
1037	{
1038	int iDiff = memcmp(pszPath, pChild->szName, cchName);
1039	if (iDiff <= 0)
1040	{
1041	if (iDiff != 0)
1042	pChild = NULL;
1043	break;
1044	}
1045	}
1046	if (!pChild)
1047	return VERR_CFGM_CHILD_NOT_FOUND;
1048
1049	/* next iteration */
1050	pNode = pChild;
1051	pszPath = pszNext;
1052	}
1053
1054	/* won't get here */
1055	}
1056
1057
1058	/**
1059	* Resolves a path reference to a child node.
1060	*
1061	* @returns VBox status code.
1062	* @param pNode Which node to search for pszName in.
1063	* @param pszName Name of a byte string value.
1064	* @param ppLeaf Where to store the pointer to the leaf node.
1065	*/
1066	static int cfgmR3ResolveLeaf(PCFGMNODE pNode, const char pszName, PCFGMLEAF ppLeaf)
1067	{
1068	if (!pNode)
1069	return VERR_CFGM_NO_PARENT;
1070
1071	size_t cchName = strlen(pszName);
1072	PCFGMLEAF pLeaf = pNode->pFirstLeaf;
1073	while (pLeaf)
1074	{
1075	if (cchName == pLeaf->cchName)
1076	{
1077	int iDiff = memcmp(pszName, pLeaf->szName, cchName);
1078	if (iDiff <= 0)
1079	{
1080	if (iDiff != 0)
1081	break;
1082	*ppLeaf = pLeaf;
1083	return VINF_SUCCESS;
1084	}
1085	}
1086
1087	/* next */
1088	pLeaf = pLeaf->pNext;
1089	}
1090	return VERR_CFGM_VALUE_NOT_FOUND;
1091	}
1092
1093
1094
1095	/**
1096	* Creates a CFGM tree.
1097	*
1098	* This is intended for creating device/driver configs can be
1099	* passed around and later attached to the main tree in the
1100	* correct location.
1101	*
1102	* @returns Pointer to the root node.
1103	* @param pVM The VM handle.
1104	*/
1105	VMMR3DECL(PCFGMNODE) CFGMR3CreateTree(PVM pVM)
1106	{
1107	PCFGMNODE pNew = (PCFGMNODE)MMR3HeapAlloc(pVM, MM_TAG_CFGM, sizeof(*pNew));
1108	if (pNew)
1109	{
1110	pNew->pPrev = NULL;
1111	pNew->pNext = NULL;
1112	pNew->pParent = NULL;
1113	pNew->pFirstChild = NULL;
1114	pNew->pFirstLeaf = NULL;
1115	pNew->pVM = pVM;
1116	pNew->fRestrictedRoot = false;
1117	pNew->cchName = 0;
1118	pNew->szName[0] = 0;
1119	}
1120	return pNew;
1121	}
1122
1123
1124	/**
1125	* Insert subtree.
1126	*
1127	* This function inserts (no duplication) a tree created by CFGMR3CreateTree()
1128	* into the main tree.
1129	*
1130	* The root node of the inserted subtree will need to be reallocated, which
1131	* effectually means that the passed in pSubTree handle becomes invalid
1132	* upon successful return. Use the value returned in ppChild instead
1133	* of pSubTree.
1134	*
1135	* @returns VBox status code.
1136	* @returns VERR_CFGM_NODE_EXISTS if the final child node name component exists.
1137	* @param pNode Parent node.
1138	* @param pszName Name or path of the new child node.
1139	* @param pSubTree The subtree to insert. Must be returned by CFGMR3CreateTree().
1140	* @param ppChild Where to store the address of the new child node. (optional)
1141	*/
1142	VMMR3DECL(int) CFGMR3InsertSubTree(PCFGMNODE pNode, const char pszName, PCFGMNODE pSubTree, PCFGMNODE ppChild)
1143	{
1144	/*
1145	* Validate input.
1146	*/
1147	AssertPtrReturn(pSubTree, VERR_INVALID_POINTER);
1148	AssertReturn(!pSubTree->pParent, VERR_INVALID_PARAMETER);
1149	AssertReturn(pSubTree->pVM, VERR_INVALID_PARAMETER);
1150	AssertReturn(pSubTree->pParent != pSubTree->pVM->cfgm.s.pRoot, VERR_INVALID_PARAMETER);
1151	Assert(!pSubTree->pNext);
1152	Assert(!pSubTree->pPrev);
1153
1154	/*
1155	* Use CFGMR3InsertNode to create a new node and then
1156	* re-attach the children and leafs of the subtree to it.
1157	*/
1158	PCFGMNODE pNewChild;
1159	int rc = CFGMR3InsertNode(pNode, pszName, &pNewChild);
1160	if (RT_SUCCESS(rc))
1161	{
1162	Assert(!pNewChild->pFirstChild);
1163	pNewChild->pFirstChild = pSubTree->pFirstChild;
1164	Assert(!pNewChild->pFirstLeaf);
1165	pNewChild->pFirstLeaf = pSubTree->pFirstLeaf;
1166	if (ppChild)
1167	*ppChild = pNewChild;
1168
1169	/* free the old subtree root */
1170	pSubTree->pVM = NULL;
1171	pSubTree->pFirstLeaf = NULL;
1172	pSubTree->pFirstChild = NULL;
1173	MMR3HeapFree(pSubTree);
1174	}
1175	return rc;
1176	}
1177
1178
1179	/**
1180	* Compares two names.
1181	*
1182	* @returns Similar to memcpy.
1183	* @param pszName1 The first name.
1184	* @param cchName1 The length of the first name.
1185	* @param pszName2 The second name.
1186	* @param cchName2 The length of the second name.
1187	*/
1188	DECLINLINE(int) cfgmR3CompareNames(const char pszName1, size_t cchName1, const char pszName2, size_t cchName2)
1189	{
1190	int iDiff;
1191	if (cchName1 <= cchName2)
1192	{
1193	iDiff = memcmp(pszName1, pszName2, cchName1);
1194	if (!iDiff && cchName1 < cchName2)
1195	iDiff = -1;
1196	}
1197	else
1198	{
1199	iDiff = memcmp(pszName1, pszName2, cchName2);
1200	if (!iDiff)
1201	iDiff = 1;
1202	}
1203	return iDiff;
1204	}
1205
1206
1207	/**
1208	* Insert a node.
1209	*
1210	* @returns VBox status code.
1211	* @returns VERR_CFGM_NODE_EXISTS if the final child node name component exists.
1212	* @param pNode Parent node.
1213	* @param pszName Name or path of the new child node.
1214	* @param ppChild Where to store the address of the new child node. (optional)
1215	*/
1216	VMMR3DECL(int) CFGMR3InsertNode(PCFGMNODE pNode, const char pszName, PCFGMNODE ppChild)
1217	{
1218	int rc;
1219	if (pNode)
1220	{
1221	/*
1222	* If given a path we have to deal with it component by compontent.
1223	*/
1224	while (*pszName == '/')
1225	pszName++;
1226	if (strchr(pszName, '/'))
1227	{
1228	char *pszDup = RTStrDup(pszName);
1229	if (pszDup)
1230	{
1231	char *psz = pszDup;
1232	for (;;)
1233	{
1234	/* Terminate at '/' and find the next component. */
1235	char *pszNext = strchr(psz, '/');
1236	if (pszNext)
1237	{
1238	*pszNext++ = '\0';
1239	while (*pszNext == '/')
1240	pszNext++;
1241	if (*pszNext == '\0')
1242	pszNext = NULL;
1243	}
1244
1245	/* does it exist? */
1246	PCFGMNODE pChild = CFGMR3GetChild(pNode, psz);
1247	if (!pChild)
1248	{
1249	/* no, insert it */
1250	rc = CFGMR3InsertNode(pNode, psz, &pChild);
1251	if (RT_FAILURE(rc))
1252	break;
1253	if (!pszNext)
1254	{
1255	if (ppChild)
1256	*ppChild = pChild;
1257	break;
1258	}
1259
1260	}
1261	/* if last component fail */
1262	else if (!pszNext)
1263	{
1264	rc = VERR_CFGM_NODE_EXISTS;
1265	break;
1266	}
1267
1268	/* next */
1269	pNode = pChild;
1270	psz = pszNext;
1271	}
1272	RTStrFree(pszDup);
1273	}
1274	else
1275	rc = VERR_NO_TMP_MEMORY;
1276	}
1277	/*
1278	* Not multicomponent, just make sure it's a non-zero name.
1279	*/
1280	else if (*pszName)
1281	{
1282	/*
1283	* Check if already exists and find last node in chain.
1284	*/
1285	size_t cchName = strlen(pszName);
1286	PCFGMNODE pPrev = NULL;
1287	PCFGMNODE pNext = pNode->pFirstChild;
1288	if (pNext)
1289	{
1290	for ( ; pNext; pPrev = pNext, pNext = pNext->pNext)
1291	{
1292	int iDiff = cfgmR3CompareNames(pszName, cchName, pNext->szName, pNext->cchName);
1293	if (iDiff <= 0)
1294	{
1295	if (!iDiff)
1296	return VERR_CFGM_NODE_EXISTS;
1297	break;
1298	}
1299	}
1300	}
1301
1302	/*
1303	* Allocate and init node.
1304	*/
1305	PCFGMNODE pNew = (PCFGMNODE)MMR3HeapAlloc(pNode->pVM, MM_TAG_CFGM, sizeof(*pNew) + cchName);
1306	if (pNew)
1307	{
1308	pNew->pParent = pNode;
1309	pNew->pFirstChild = NULL;
1310	pNew->pFirstLeaf = NULL;
1311	pNew->pVM = pNode->pVM;
1312	pNew->fRestrictedRoot = false;
1313	pNew->cchName = cchName;
1314	memcpy(pNew->szName, pszName, cchName + 1);
1315
1316	/*
1317	* Insert into child list.
1318	*/
1319	pNew->pPrev = pPrev;
1320	if (pPrev)
1321	pPrev->pNext = pNew;
1322	else
1323	pNode->pFirstChild = pNew;
1324	pNew->pNext = pNext;
1325	if (pNext)
1326	pNext->pPrev = pNew;
1327
1328	if (ppChild)
1329	*ppChild = pNew;
1330	rc = VINF_SUCCESS;
1331	}
1332	else
1333	rc = VERR_NO_MEMORY;
1334	}
1335	else
1336	{
1337	rc = VERR_CFGM_INVALID_NODE_PATH;
1338	AssertMsgFailed(("Invalid path %s\n", pszName));
1339	}
1340	}
1341	else
1342	{
1343	rc = VERR_CFGM_NO_PARENT;
1344	AssertMsgFailed(("No parent! path %s\n", pszName));
1345	}
1346
1347	return rc;
1348	}
1349
1350
1351	/**
1352	* Insert a node, format string name.
1353	*
1354	* @returns VBox status code.
1355	* @param pNode Parent node.
1356	* @param ppChild Where to store the address of the new child node. (optional)
1357	* @param pszNameFormat Name of or path the new child node.
1358	* @param ... Name format arguments.
1359	*/
1360	VMMR3DECL(int) CFGMR3InsertNodeF(PCFGMNODE pNode, PCFGMNODE ppChild, const char pszNameFormat, ...)
1361	{
1362	va_list Args;
1363	va_start(Args, pszNameFormat);
1364	int rc = CFGMR3InsertNodeFV(pNode, ppChild, pszNameFormat, Args);
1365	va_end(Args);
1366	return rc;
1367	}
1368
1369
1370	/**
1371	* Insert a node, format string name.
1372	*
1373	* @returns VBox status code.
1374	* @param pNode Parent node.
1375	* @param ppChild Where to store the address of the new child node. (optional)
1376	* @param pszNameFormat Name or path of the new child node.
1377	* @param Args Name format arguments.
1378	*/
1379	VMMR3DECL(int) CFGMR3InsertNodeFV(PCFGMNODE pNode, PCFGMNODE ppChild, const char pszNameFormat, va_list Args)
1380	{
1381	int rc;
1382	char *pszName;
1383	RTStrAPrintfV(&pszName, pszNameFormat, Args);
1384	if (pszName)
1385	{
1386	rc = CFGMR3InsertNode(pNode, pszName, ppChild);
1387	RTStrFree(pszName);
1388	}
1389	else
1390	rc = VERR_NO_MEMORY;
1391	return rc;
1392	}
1393
1394
1395	/**
1396	* Marks the node as the root of a restricted subtree, i.e. the end of
1397	* a CFGMR3GetParent() journey.
1398	*
1399	* @param pNode The node to mark.
1400	*/
1401	VMMR3DECL(void) CFGMR3SetRestrictedRoot(PCFGMNODE pNode)
1402	{
1403	if (pNode)
1404	pNode->fRestrictedRoot = true;
1405	}
1406
1407
1408	/**
1409	* Insert a node.
1410	*
1411	* @returns VBox status code.
1412	* @param pNode Parent node.
1413	* @param pszName Name of the new child node.
1414	* @param ppLeaf Where to store the new leaf.
1415	* The caller must fill in the enmType and Value fields!
1416	*/
1417	static int cfgmR3InsertLeaf(PCFGMNODE pNode, const char pszName, PCFGMLEAF ppLeaf)
1418	{
1419	int rc;
1420	if (*pszName)
1421	{
1422	if (pNode)
1423	{
1424	/*
1425	* Check if already exists and find last node in chain.
1426	*/
1427	size_t cchName = strlen(pszName);
1428	PCFGMLEAF pPrev = NULL;
1429	PCFGMLEAF pNext = pNode->pFirstLeaf;
1430	if (pNext)
1431	{
1432	for ( ; pNext; pPrev = pNext, pNext = pNext->pNext)
1433	{
1434	int iDiff = cfgmR3CompareNames(pszName, cchName, pNext->szName, pNext->cchName);
1435	if (iDiff <= 0)
1436	{
1437	if (!iDiff)
1438	return VERR_CFGM_LEAF_EXISTS;
1439	break;
1440	}
1441	}
1442	}
1443
1444	/*
1445	* Allocate and init node.
1446	*/
1447	PCFGMLEAF pNew = (PCFGMLEAF)MMR3HeapAlloc(pNode->pVM, MM_TAG_CFGM, sizeof(*pNew) + cchName);
1448	if (pNew)
1449	{
1450	pNew->cchName = cchName;
1451	memcpy(pNew->szName, pszName, cchName + 1);
1452
1453	/*
1454	* Insert into child list.
1455	*/
1456	pNew->pPrev = pPrev;
1457	if (pPrev)
1458	pPrev->pNext = pNew;
1459	else
1460	pNode->pFirstLeaf = pNew;
1461	pNew->pNext = pNext;
1462	if (pNext)
1463	pNext->pPrev = pNew;
1464
1465	*ppLeaf = pNew;
1466	rc = VINF_SUCCESS;
1467	}
1468	else
1469	rc = VERR_NO_MEMORY;
1470	}
1471	else
1472	rc = VERR_CFGM_NO_PARENT;
1473	}
1474	else
1475	rc = VERR_CFGM_INVALID_CHILD_PATH;
1476	return rc;
1477	}
1478
1479
1480	/**
1481	* Remove a node.
1482	*
1483	* @param pNode Parent node.
1484	*/
1485	VMMR3DECL(void) CFGMR3RemoveNode(PCFGMNODE pNode)
1486	{
1487	if (pNode)
1488	{
1489	/*
1490	* Free children.
1491	*/
1492	while (pNode->pFirstChild)
1493	CFGMR3RemoveNode(pNode->pFirstChild);
1494
1495	/*
1496	* Free leafs.
1497	*/
1498	while (pNode->pFirstLeaf)
1499	cfgmR3RemoveLeaf(pNode, pNode->pFirstLeaf);
1500
1501	/*
1502	* Unlink ourselves.
1503	*/
1504	if (pNode->pPrev)
1505	pNode->pPrev->pNext = pNode->pNext;
1506	else
1507	{
1508	if (pNode->pParent)
1509	pNode->pParent->pFirstChild = pNode->pNext;
1510	else if (pNode == pNode->pVM->cfgm.s.pRoot) /* might be a different tree */
1511	pNode->pVM->cfgm.s.pRoot = NULL;
1512	}
1513	if (pNode->pNext)
1514	pNode->pNext->pPrev = pNode->pPrev;
1515
1516	/*
1517	* Free ourselves. (bit of paranoia first)
1518	*/
1519	pNode->pVM = NULL;
1520	pNode->pNext = NULL;
1521	pNode->pPrev = NULL;
1522	pNode->pParent = NULL;
1523	MMR3HeapFree(pNode);
1524	}
1525	}
1526
1527
1528	/**
1529	* Removes a leaf.
1530	*
1531	* @param pNode Parent node.
1532	* @param pLeaf Leaf to remove.
1533	*/
1534	static void cfgmR3RemoveLeaf(PCFGMNODE pNode, PCFGMLEAF pLeaf)
1535	{
1536	if (pNode && pLeaf)
1537	{
1538	/*
1539	* Unlink.
1540	*/
1541	if (pLeaf->pPrev)
1542	pLeaf->pPrev->pNext = pLeaf->pNext;
1543	else
1544	pNode->pFirstLeaf = pLeaf->pNext;
1545	if (pLeaf->pNext)
1546	pLeaf->pNext->pPrev = pLeaf->pPrev;
1547
1548	/*
1549	* Free value and node.
1550	*/
1551	cfgmR3FreeValue(pLeaf);
1552	pLeaf->pNext = NULL;
1553	pLeaf->pPrev = NULL;
1554	MMR3HeapFree(pLeaf);
1555	}
1556	}
1557
1558
1559	/**
1560	* Frees whatever resources the leaf value is owning.
1561	*
1562	* Use this before assigning a new value to a leaf.
1563	* The caller must either free the leaf or assign a new value to it.
1564	*
1565	* @param pLeaf Pointer to the leaf which value should be free.
1566	*/
1567	static void cfgmR3FreeValue(PCFGMLEAF pLeaf)
1568	{
1569	if (pLeaf)
1570	{
1571	switch (pLeaf->enmType)
1572	{
1573	case CFGMVALUETYPE_BYTES:
1574	MMR3HeapFree(pLeaf->Value.Bytes.pau8);
1575	pLeaf->Value.Bytes.pau8 = NULL;
1576	pLeaf->Value.Bytes.cb = 0;
1577	break;
1578
1579	case CFGMVALUETYPE_STRING:
1580	MMR3HeapFree(pLeaf->Value.String.psz);
1581	pLeaf->Value.String.psz = NULL;
1582	pLeaf->Value.String.cb = 0;
1583	break;
1584
1585	case CFGMVALUETYPE_INTEGER:
1586	break;
1587	}
1588	pLeaf->enmType = (CFGMVALUETYPE)0;
1589	}
1590	}
1591
1592
1593	/**
1594	* Inserts a new integer value.
1595	*
1596	* @returns VBox status code.
1597	* @param pNode Parent node.
1598	* @param pszName Value name.
1599	* @param u64Integer The value.
1600	*/
1601	VMMR3DECL(int) CFGMR3InsertInteger(PCFGMNODE pNode, const char *pszName, uint64_t u64Integer)
1602	{
1603	PCFGMLEAF pLeaf;
1604	int rc = cfgmR3InsertLeaf(pNode, pszName, &pLeaf);
1605	if (RT_SUCCESS(rc))
1606	{
1607	pLeaf->enmType = CFGMVALUETYPE_INTEGER;
1608	pLeaf->Value.Integer.u64 = u64Integer;
1609	}
1610	return rc;
1611	}
1612
1613
1614	/**
1615	* Inserts a new string value.
1616	*
1617	* @returns VBox status code.
1618	* @param pNode Parent node.
1619	* @param pszName Value name.
1620	* @param pszString The value.
1621	*/
1622	VMMR3DECL(int) CFGMR3InsertString(PCFGMNODE pNode, const char pszName, const char pszString)
1623	{
1624	int rc;
1625	if (pNode)
1626	{
1627	/*
1628	* Allocate string object first.
1629	*/
1630	size_t cbString = strlen(pszString) + 1;
1631	char pszStringCopy = (char )MMR3HeapAlloc(pNode->pVM, MM_TAG_CFGM_STRING, cbString);
1632	if (pszStringCopy)
1633	{
1634	memcpy(pszStringCopy, pszString, cbString);
1635
1636	/*
1637	* Create value leaf and set it to string type.
1638	*/
1639	PCFGMLEAF pLeaf;
1640	rc = cfgmR3InsertLeaf(pNode, pszName, &pLeaf);
1641	if (RT_SUCCESS(rc))
1642	{
1643	pLeaf->enmType = CFGMVALUETYPE_STRING;
1644	pLeaf->Value.String.psz = pszStringCopy;
1645	pLeaf->Value.String.cb = cbString;
1646	}
1647	else
1648	MMR3HeapFree(pszStringCopy);
1649	}
1650	else
1651	rc = VERR_NO_MEMORY;
1652	}
1653	else
1654	rc = VERR_CFGM_NO_PARENT;
1655
1656	return rc;
1657	}
1658
1659
1660	/**
1661	* Same as CFGMR3InsertString except the string value given in RTStrPrintfV
1662	* fashion.
1663	*
1664	* @returns VBox status code.
1665	* @param pNode Parent node.
1666	* @param pszName Value name.
1667	* @param pszFormat The value given as a format string.
1668	* @param va Argument to pszFormat.
1669	*/
1670	VMMR3DECL(int) CFGMR3InsertStringFV(PCFGMNODE pNode, const char pszName, const char pszFormat, va_list va)
1671	{
1672	int rc;
1673	if (pNode)
1674	{
1675	/*
1676	* Allocate string object first.
1677	*/
1678	char *pszString = MMR3HeapAPrintfVU(pNode->pVM->pUVM, MM_TAG_CFGM_STRING, pszFormat, va);
1679	if (pszString)
1680	{
1681	/*
1682	* Create value leaf and set it to string type.
1683	*/
1684	PCFGMLEAF pLeaf;
1685	rc = cfgmR3InsertLeaf(pNode, pszName, &pLeaf);
1686	if (RT_SUCCESS(rc))
1687	{
1688	pLeaf->enmType = CFGMVALUETYPE_STRING;
1689	pLeaf->Value.String.psz = pszString;
1690	pLeaf->Value.String.cb = strlen(pszString) + 1;
1691	}
1692	else
1693	MMR3HeapFree(pszString);
1694	}
1695	else
1696	rc = VERR_NO_MEMORY;
1697	}
1698	else
1699	rc = VERR_CFGM_NO_PARENT;
1700
1701	return rc;
1702	}
1703
1704
1705	/**
1706	* Same as CFGMR3InsertString except the string value given in RTStrPrintf
1707	* fashion.
1708	*
1709	* @returns VBox status code.
1710	* @param pNode Parent node.
1711	* @param pszName Value name.
1712	* @param pszFormat The value given as a format string.
1713	* @param ... Argument to pszFormat.
1714	*/
1715	VMMR3DECL(int) CFGMR3InsertStringF(PCFGMNODE pNode, const char pszName, const char pszFormat, ...)
1716	{
1717	va_list va;
1718	va_start(va, pszFormat);
1719	int rc = CFGMR3InsertStringFV(pNode, pszName, pszFormat, va);
1720	va_end(va);
1721	return rc;
1722	}
1723
1724
1725	/**
1726	* Same as CFGMR3InsertString except the string value given as a UTF-16 string.
1727	*
1728	* @returns VBox status code.
1729	* @param pNode Parent node.
1730	* @param pszName Value name.
1731	* @param pwszValue The string value (UTF-16).
1732	*/
1733	VMMR3DECL(int) CFGMR3InsertStringW(PCFGMNODE pNode, const char *pszName, PCRTUTF16 pwszValue)
1734	{
1735	char *pszValue;
1736	int rc = RTUtf16ToUtf8(pwszValue, &pszValue);
1737	if (RT_SUCCESS(rc))
1738	{
1739	rc = CFGMR3InsertString(pNode, pszName, pszValue);
1740	RTStrFree(pszValue);
1741	}
1742	return rc;
1743	}
1744
1745
1746	/**
1747	* Inserts a new integer value.
1748	*
1749	* @returns VBox status code.
1750	* @param pNode Parent node.
1751	* @param pszName Value name.
1752	* @param pvBytes The value.
1753	* @param cbBytes The value size.
1754	*/
1755	VMMR3DECL(int) CFGMR3InsertBytes(PCFGMNODE pNode, const char pszName, const void pvBytes, size_t cbBytes)
1756	{
1757	int rc;
1758	if (pNode)
1759	{
1760	if (cbBytes == (RTUINT)cbBytes)
1761	{
1762	/*
1763	* Allocate string object first.
1764	*/
1765	void *pvCopy = MMR3HeapAlloc(pNode->pVM, MM_TAG_CFGM_STRING, cbBytes);
1766	if (pvCopy \|\| !cbBytes)
1767	{
1768	memcpy(pvCopy, pvBytes, cbBytes);
1769
1770	/*
1771	* Create value leaf and set it to string type.
1772	*/
1773	PCFGMLEAF pLeaf;
1774	rc = cfgmR3InsertLeaf(pNode, pszName, &pLeaf);
1775	if (RT_SUCCESS(rc))
1776	{
1777	pLeaf->enmType = CFGMVALUETYPE_BYTES;
1778	pLeaf->Value.Bytes.cb = cbBytes;
1779	pLeaf->Value.Bytes.pau8 = (uint8_t *)pvCopy;
1780	}
1781	}
1782	else
1783	rc = VERR_NO_MEMORY;
1784	}
1785	else
1786	rc = VERR_OUT_OF_RANGE;
1787	}
1788	else
1789	rc = VERR_CFGM_NO_PARENT;
1790
1791	return rc;
1792	}
1793
1794
1795	/**
1796	* Remove a value.
1797	*
1798	* @returns VBox status code.
1799	* @param pNode Parent node.
1800	* @param pszName Name of the new child node.
1801	*/
1802	VMMR3DECL(int) CFGMR3RemoveValue(PCFGMNODE pNode, const char *pszName)
1803	{
1804	PCFGMLEAF pLeaf;
1805	int rc = cfgmR3ResolveLeaf(pNode, pszName, &pLeaf);
1806	if (RT_SUCCESS(rc))
1807	cfgmR3RemoveLeaf(pNode, pLeaf);
1808	return rc;
1809	}
1810
1811
1812
1813	/*
1814	* -+- helper apis -+-
1815	*/
1816
1817
1818	/**
1819	* Query unsigned 64-bit integer value.
1820	*
1821	* @returns VBox status code.
1822	* @param pNode Which node to search for pszName in.
1823	* @param pszName Name of an integer value.
1824	* @param pu64 Where to store the integer value.
1825	*/
1826	VMMR3DECL(int) CFGMR3QueryU64(PCFGMNODE pNode, const char pszName, uint64_t pu64)
1827	{
1828	return CFGMR3QueryInteger(pNode, pszName, pu64);
1829	}
1830
1831
1832	/**
1833	* Query unsigned 64-bit integer value with default.
1834	*
1835	* @returns VBox status code.
1836	* @param pNode Which node to search for pszName in.
1837	* @param pszName Name of an integer value.
1838	* @param pu64 Where to store the integer value. Set to default on failure.
1839	* @param u64Def The default value.
1840	*/
1841	VMMR3DECL(int) CFGMR3QueryU64Def(PCFGMNODE pNode, const char pszName, uint64_t pu64, uint64_t u64Def)
1842	{
1843	return CFGMR3QueryIntegerDef(pNode, pszName, pu64, u64Def);
1844	}
1845
1846
1847	/**
1848	* Query signed 64-bit integer value.
1849	*
1850	* @returns VBox status code.
1851	* @param pNode Which node to search for pszName in.
1852	* @param pszName Name of an integer value.
1853	* @param pi64 Where to store the value.
1854	*/
1855	VMMR3DECL(int) CFGMR3QueryS64(PCFGMNODE pNode, const char pszName, int64_t pi64)
1856	{
1857	uint64_t u64;
1858	int rc = CFGMR3QueryInteger(pNode, pszName, &u64);
1859	if (RT_SUCCESS(rc))
1860	*pi64 = (int64_t)u64;
1861	return rc;
1862	}
1863
1864
1865	/**
1866	* Query signed 64-bit integer value with default.
1867	*
1868	* @returns VBox status code.
1869	* @param pNode Which node to search for pszName in.
1870	* @param pszName Name of an integer value.
1871	* @param pi64 Where to store the value. Set to default on failure.
1872	* @param i64Def The default value.
1873	*/
1874	VMMR3DECL(int) CFGMR3QueryS64Def(PCFGMNODE pNode, const char pszName, int64_t pi64, int64_t i64Def)
1875	{
1876	uint64_t u64;
1877	int rc = CFGMR3QueryIntegerDef(pNode, pszName, &u64, i64Def);
1878	if (RT_SUCCESS(rc))
1879	*pi64 = (int64_t)u64;
1880	return rc;
1881	}
1882
1883
1884	/**
1885	* Query unsigned 32-bit integer value.
1886	*
1887	* @returns VBox status code.
1888	* @param pNode Which node to search for pszName in.
1889	* @param pszName Name of an integer value.
1890	* @param pu32 Where to store the value.
1891	*/
1892	VMMR3DECL(int) CFGMR3QueryU32(PCFGMNODE pNode, const char pszName, uint32_t pu32)
1893	{
1894	uint64_t u64;
1895	int rc = CFGMR3QueryInteger(pNode, pszName, &u64);
1896	if (RT_SUCCESS(rc))
1897	{
1898	if (!(u64 & UINT64_C(0xffffffff00000000)))
1899	*pu32 = (uint32_t)u64;
1900	else
1901	rc = VERR_CFGM_INTEGER_TOO_BIG;
1902	}
1903	return rc;
1904	}
1905
1906
1907	/**
1908	* Query unsigned 32-bit integer value with default.
1909	*
1910	* @returns VBox status code.
1911	* @param pNode Which node to search for pszName in.
1912	* @param pszName Name of an integer value.
1913	* @param pu32 Where to store the value. Set to default on failure.
1914	* @param u32Def The default value.
1915	*/
1916	VMMR3DECL(int) CFGMR3QueryU32Def(PCFGMNODE pNode, const char pszName, uint32_t pu32, uint32_t u32Def)
1917	{
1918	uint64_t u64;
1919	int rc = CFGMR3QueryIntegerDef(pNode, pszName, &u64, u32Def);
1920	if (RT_SUCCESS(rc))
1921	{
1922	if (!(u64 & UINT64_C(0xffffffff00000000)))
1923	*pu32 = (uint32_t)u64;
1924	else
1925	rc = VERR_CFGM_INTEGER_TOO_BIG;
1926	}
1927	return rc;
1928	}
1929
1930
1931	/**
1932	* Query signed 32-bit integer value.
1933	*
1934	* @returns VBox status code.
1935	* @param pNode Which node to search for pszName in.
1936	* @param pszName Name of an integer value.
1937	* @param pi32 Where to store the value.
1938	*/
1939	VMMR3DECL(int) CFGMR3QueryS32(PCFGMNODE pNode, const char pszName, int32_t pi32)
1940	{
1941	uint64_t u64;
1942	int rc = CFGMR3QueryInteger(pNode, pszName, &u64);
1943	if (RT_SUCCESS(rc))
1944	{
1945	if ( !(u64 & UINT64_C(0xffffffff80000000))
1946	\|\| (u64 & UINT64_C(0xffffffff80000000)) == UINT64_C(0xffffffff80000000))
1947	*pi32 = (int32_t)u64;
1948	else
1949	rc = VERR_CFGM_INTEGER_TOO_BIG;
1950	}
1951	return rc;
1952	}
1953
1954
1955	/**
1956	* Query signed 32-bit integer value with default.
1957	*
1958	* @returns VBox status code.
1959	* @param pNode Which node to search for pszName in.
1960	* @param pszName Name of an integer value.
1961	* @param pi32 Where to store the value. Set to default on failure.
1962	* @param i32Def The default value.
1963	*/
1964	VMMR3DECL(int) CFGMR3QueryS32Def(PCFGMNODE pNode, const char pszName, int32_t pi32, int32_t i32Def)
1965	{
1966	uint64_t u64;
1967	int rc = CFGMR3QueryIntegerDef(pNode, pszName, &u64, i32Def);
1968	if (RT_SUCCESS(rc))
1969	{
1970	if ( !(u64 & UINT64_C(0xffffffff80000000))
1971	\|\| (u64 & UINT64_C(0xffffffff80000000)) == UINT64_C(0xffffffff80000000))
1972	*pi32 = (int32_t)u64;
1973	else
1974	rc = VERR_CFGM_INTEGER_TOO_BIG;
1975	}
1976	return rc;
1977	}
1978
1979
1980	/**
1981	* Query unsigned 16-bit integer value.
1982	*
1983	* @returns VBox status code.
1984	* @param pNode Which node to search for pszName in.
1985	* @param pszName Name of an integer value.
1986	* @param pu16 Where to store the value.
1987	*/
1988	VMMR3DECL(int) CFGMR3QueryU16(PCFGMNODE pNode, const char pszName, uint16_t pu16)
1989	{
1990	uint64_t u64;
1991	int rc = CFGMR3QueryInteger(pNode, pszName, &u64);
1992	if (RT_SUCCESS(rc))
1993	{
1994	if (!(u64 & UINT64_C(0xffffffffffff0000)))
1995	*pu16 = (int16_t)u64;
1996	else
1997	rc = VERR_CFGM_INTEGER_TOO_BIG;
1998	}
1999	return rc;
2000	}
2001
2002
2003	/**
2004	* Query unsigned 16-bit integer value with default.
2005	*
2006	* @returns VBox status code.
2007	* @param pNode Which node to search for pszName in.
2008	* @param pszName Name of an integer value.
2009	* @param pu16 Where to store the value. Set to default on failure.
2010	* @param i16Def The default value.
2011	*/
2012	VMMR3DECL(int) CFGMR3QueryU16Def(PCFGMNODE pNode, const char pszName, uint16_t pu16, uint16_t u16Def)
2013	{
2014	uint64_t u64;
2015	int rc = CFGMR3QueryIntegerDef(pNode, pszName, &u64, u16Def);
2016	if (RT_SUCCESS(rc))
2017	{
2018	if (!(u64 & UINT64_C(0xffffffffffff0000)))
2019	*pu16 = (int16_t)u64;
2020	else
2021	rc = VERR_CFGM_INTEGER_TOO_BIG;
2022	}
2023	return rc;
2024	}
2025
2026
2027	/**
2028	* Query signed 16-bit integer value.
2029	*
2030	* @returns VBox status code.
2031	* @param pNode Which node to search for pszName in.
2032	* @param pszName Name of an integer value.
2033	* @param pi16 Where to store the value.
2034	*/
2035	VMMR3DECL(int) CFGMR3QueryS16(PCFGMNODE pNode, const char pszName, int16_t pi16)
2036	{
2037	uint64_t u64;
2038	int rc = CFGMR3QueryInteger(pNode, pszName, &u64);
2039	if (RT_SUCCESS(rc))
2040	{
2041	if ( !(u64 & UINT64_C(0xffffffffffff8000))
2042	\|\| (u64 & UINT64_C(0xffffffffffff8000)) == UINT64_C(0xffffffffffff8000))
2043	*pi16 = (int16_t)u64;
2044	else
2045	rc = VERR_CFGM_INTEGER_TOO_BIG;
2046	}
2047	return rc;
2048	}
2049
2050
2051	/**
2052	* Query signed 16-bit integer value with default.
2053	*
2054	* @returns VBox status code.
2055	* @param pNode Which node to search for pszName in.
2056	* @param pszName Name of an integer value.
2057	* @param pi16 Where to store the value. Set to default on failure.
2058	* @param i16Def The default value.
2059	*/
2060	VMMR3DECL(int) CFGMR3QueryS16Def(PCFGMNODE pNode, const char pszName, int16_t pi16, int16_t i16Def)
2061	{
2062	uint64_t u64;
2063	int rc = CFGMR3QueryIntegerDef(pNode, pszName, &u64, i16Def);
2064	if (RT_SUCCESS(rc))
2065	{
2066	if ( !(u64 & UINT64_C(0xffffffffffff8000))
2067	\|\| (u64 & UINT64_C(0xffffffffffff8000)) == UINT64_C(0xffffffffffff8000))
2068	*pi16 = (int16_t)u64;
2069	else
2070	rc = VERR_CFGM_INTEGER_TOO_BIG;
2071	}
2072	return rc;
2073	}
2074
2075
2076	/**
2077	* Query unsigned 8-bit integer value.
2078	*
2079	* @returns VBox status code.
2080	* @param pNode Which node to search for pszName in.
2081	* @param pszName Name of an integer value.
2082	* @param pu8 Where to store the value.
2083	*/
2084	VMMR3DECL(int) CFGMR3QueryU8(PCFGMNODE pNode, const char pszName, uint8_t pu8)
2085	{
2086	uint64_t u64;
2087	int rc = CFGMR3QueryInteger(pNode, pszName, &u64);
2088	if (RT_SUCCESS(rc))
2089	{
2090	if (!(u64 & UINT64_C(0xffffffffffffff00)))
2091	*pu8 = (uint8_t)u64;
2092	else
2093	rc = VERR_CFGM_INTEGER_TOO_BIG;
2094	}
2095	return rc;
2096	}
2097
2098
2099	/**
2100	* Query unsigned 8-bit integer value with default.
2101	*
2102	* @returns VBox status code.
2103	* @param pNode Which node to search for pszName in.
2104	* @param pszName Name of an integer value.
2105	* @param pu8 Where to store the value. Set to default on failure.
2106	* @param u8Def The default value.
2107	*/
2108	VMMR3DECL(int) CFGMR3QueryU8Def(PCFGMNODE pNode, const char pszName, uint8_t pu8, uint8_t u8Def)
2109	{
2110	uint64_t u64;
2111	int rc = CFGMR3QueryIntegerDef(pNode, pszName, &u64, u8Def);
2112	if (RT_SUCCESS(rc))
2113	{
2114	if (!(u64 & UINT64_C(0xffffffffffffff00)))
2115	*pu8 = (uint8_t)u64;
2116	else
2117	rc = VERR_CFGM_INTEGER_TOO_BIG;
2118	}
2119	return rc;
2120	}
2121
2122
2123	/**
2124	* Query signed 8-bit integer value.
2125	*
2126	* @returns VBox status code.
2127	* @param pNode Which node to search for pszName in.
2128	* @param pszName Name of an integer value.
2129	* @param pi8 Where to store the value.
2130	*/
2131	VMMR3DECL(int) CFGMR3QueryS8(PCFGMNODE pNode, const char pszName, int8_t pi8)
2132	{
2133	uint64_t u64;
2134	int rc = CFGMR3QueryInteger(pNode, pszName, &u64);
2135	if (RT_SUCCESS(rc))
2136	{
2137	if ( !(u64 & UINT64_C(0xffffffffffffff80))
2138	\|\| (u64 & UINT64_C(0xffffffffffffff80)) == UINT64_C(0xffffffffffffff80))
2139	*pi8 = (int8_t)u64;
2140	else
2141	rc = VERR_CFGM_INTEGER_TOO_BIG;
2142	}
2143	return rc;
2144	}
2145
2146
2147	/**
2148	* Query signed 8-bit integer value with default.
2149	*
2150	* @returns VBox status code.
2151	* @param pNode Which node to search for pszName in.
2152	* @param pszName Name of an integer value.
2153	* @param pi8 Where to store the value. Set to default on failure.
2154	* @param i8Def The default value.
2155	*/
2156	VMMR3DECL(int) CFGMR3QueryS8Def(PCFGMNODE pNode, const char pszName, int8_t pi8, int8_t i8Def)
2157	{
2158	uint64_t u64;
2159	int rc = CFGMR3QueryIntegerDef(pNode, pszName, &u64, i8Def);
2160	if (RT_SUCCESS(rc))
2161	{
2162	if ( !(u64 & UINT64_C(0xffffffffffffff80))
2163	\|\| (u64 & UINT64_C(0xffffffffffffff80)) == UINT64_C(0xffffffffffffff80))
2164	*pi8 = (int8_t)u64;
2165	else
2166	rc = VERR_CFGM_INTEGER_TOO_BIG;
2167	}
2168	return rc;
2169	}
2170
2171
2172	/**
2173	* Query boolean integer value.
2174	*
2175	* @returns VBox status code.
2176	* @param pNode Which node to search for pszName in.
2177	* @param pszName Name of an integer value.
2178	* @param pf Where to store the value.
2179	* @remark This function will interpret any non-zero value as true.
2180	*/
2181	VMMR3DECL(int) CFGMR3QueryBool(PCFGMNODE pNode, const char pszName, bool pf)
2182	{
2183	uint64_t u64;
2184	int rc = CFGMR3QueryInteger(pNode, pszName, &u64);
2185	if (RT_SUCCESS(rc))
2186	*pf = u64 ? true : false;
2187	return rc;
2188	}
2189
2190
2191	/**
2192	* Query boolean integer value with default.
2193	*
2194	* @returns VBox status code.
2195	* @param pNode Which node to search for pszName in.
2196	* @param pszName Name of an integer value.
2197	* @param pf Where to store the value. Set to default on failure.
2198	* @param fDef The default value.
2199	* @remark This function will interpret any non-zero value as true.
2200	*/
2201	VMMR3DECL(int) CFGMR3QueryBoolDef(PCFGMNODE pNode, const char pszName, bool pf, bool fDef)
2202	{
2203	uint64_t u64;
2204	int rc = CFGMR3QueryIntegerDef(pNode, pszName, &u64, fDef);
2205	if (RT_SUCCESS(rc))
2206	*pf = u64 ? true : false;
2207	return rc;
2208	}
2209
2210
2211	/**
2212	* Query I/O port address value.
2213	*
2214	* @returns VBox status code.
2215	* @param pNode Which node to search for pszName in.
2216	* @param pszName Name of an integer value.
2217	* @param pPort Where to store the value.
2218	*/
2219	VMMR3DECL(int) CFGMR3QueryPort(PCFGMNODE pNode, const char *pszName, PRTIOPORT pPort)
2220	{
2221	AssertCompileSize(RTIOPORT, 2);
2222	return CFGMR3QueryU16(pNode, pszName, pPort);
2223	}
2224
2225
2226	/**
2227	* Query I/O port address value with default.
2228	*
2229	* @returns VBox status code.
2230	* @param pNode Which node to search for pszName in.
2231	* @param pszName Name of an integer value.
2232	* @param pPort Where to store the value. Set to default on failure.
2233	* @param PortDef The default value.
2234	*/
2235	VMMR3DECL(int) CFGMR3QueryPortDef(PCFGMNODE pNode, const char *pszName, PRTIOPORT pPort, RTIOPORT PortDef)
2236	{
2237	AssertCompileSize(RTIOPORT, 2);
2238	return CFGMR3QueryU16Def(pNode, pszName, pPort, PortDef);
2239	}
2240
2241
2242	/**
2243	* Query unsigned int address value.
2244	*
2245	* @returns VBox status code.
2246	* @param pNode Which node to search for pszName in.
2247	* @param pszName Name of an integer value.
2248	* @param pu Where to store the value.
2249	*/
2250	VMMR3DECL(int) CFGMR3QueryUInt(PCFGMNODE pNode, const char pszName, unsigned int pu)
2251	{
2252	AssertCompileSize(unsigned int, 4);
2253	return CFGMR3QueryU32(pNode, pszName, (uint32_t *)pu);
2254	}
2255
2256
2257	/**
2258	* Query unsigned int address value with default.
2259	*
2260	* @returns VBox status code.
2261	* @param pNode Which node to search for pszName in.
2262	* @param pszName Name of an integer value.
2263	* @param pu Where to store the value. Set to default on failure.
2264	* @param uDef The default value.
2265	*/
2266	VMMR3DECL(int) CFGMR3QueryUIntDef(PCFGMNODE pNode, const char pszName, unsigned int pu, unsigned int uDef)
2267	{
2268	AssertCompileSize(unsigned int, 4);
2269	return CFGMR3QueryU32Def(pNode, pszName, (uint32_t *)pu, uDef);
2270	}
2271
2272
2273	/**
2274	* Query signed int address value.
2275	*
2276	* @returns VBox status code.
2277	* @param pNode Which node to search for pszName in.
2278	* @param pszName Name of an integer value.
2279	* @param pi Where to store the value.
2280	*/
2281	VMMR3DECL(int) CFGMR3QuerySInt(PCFGMNODE pNode, const char pszName, signed int pi)
2282	{
2283	AssertCompileSize(signed int, 4);
2284	return CFGMR3QueryS32(pNode, pszName, (int32_t *)pi);
2285	}
2286
2287
2288	/**
2289	* Query unsigned int address value with default.
2290	*
2291	* @returns VBox status code.
2292	* @param pNode Which node to search for pszName in.
2293	* @param pszName Name of an integer value.
2294	* @param pi Where to store the value. Set to default on failure.
2295	* @param iDef The default value.
2296	*/
2297	VMMR3DECL(int) CFGMR3QuerySIntDef(PCFGMNODE pNode, const char pszName, signed int pi, signed int iDef)
2298	{
2299	AssertCompileSize(signed int, 4);
2300	return CFGMR3QueryS32Def(pNode, pszName, (int32_t *)pi, iDef);
2301	}
2302
2303
2304	/**
2305	* Query pointer integer value.
2306	*
2307	* @returns VBox status code.
2308	* @param pNode Which node to search for pszName in.
2309	* @param pszName Name of an integer value.
2310	* @param ppv Where to store the value.
2311	*/
2312	VMMR3DECL(int) CFGMR3QueryPtr(PCFGMNODE pNode, const char pszName, void *ppv)
2313	{
2314	uint64_t u64;
2315	int rc = CFGMR3QueryInteger(pNode, pszName, &u64);
2316	if (RT_SUCCESS(rc))
2317	{
2318	uintptr_t u = (uintptr_t)u64;
2319	if (u64 == u)
2320	ppv = (void )u;
2321	else
2322	rc = VERR_CFGM_INTEGER_TOO_BIG;
2323	}
2324	return rc;
2325	}
2326
2327
2328	/**
2329	* Query pointer integer value with default.
2330	*
2331	* @returns VBox status code.
2332	* @param pNode Which node to search for pszName in.
2333	* @param pszName Name of an integer value.
2334	* @param ppv Where to store the value. Set to default on failure.
2335	* @param pvDef The default value.
2336	*/
2337	VMMR3DECL(int) CFGMR3QueryPtrDef(PCFGMNODE pNode, const char pszName, void ppv, void pvDef)
2338	{
2339	uint64_t u64;
2340	int rc = CFGMR3QueryIntegerDef(pNode, pszName, &u64, (uintptr_t)pvDef);
2341	if (RT_SUCCESS(rc))
2342	{
2343	uintptr_t u = (uintptr_t)u64;
2344	if (u64 == u)
2345	ppv = (void )u;
2346	else
2347	rc = VERR_CFGM_INTEGER_TOO_BIG;
2348	}
2349	return rc;
2350	}
2351
2352
2353	/**
2354	* Query Guest Context pointer integer value.
2355	*
2356	* @returns VBox status code.
2357	* @param pNode Which node to search for pszName in.
2358	* @param pszName Name of an integer value.
2359	* @param pGCPtr Where to store the value.
2360	*/
2361	VMMR3DECL(int) CFGMR3QueryGCPtr(PCFGMNODE pNode, const char *pszName, PRTGCPTR pGCPtr)
2362	{
2363	uint64_t u64;
2364	int rc = CFGMR3QueryInteger(pNode, pszName, &u64);
2365	if (RT_SUCCESS(rc))
2366	{
2367	RTGCPTR u = (RTGCPTR)u64;
2368	if (u64 == u)
2369	*pGCPtr = u;
2370	else
2371	rc = VERR_CFGM_INTEGER_TOO_BIG;
2372	}
2373	return rc;
2374	}
2375
2376
2377	/**
2378	* Query Guest Context pointer integer value with default.
2379	*
2380	* @returns VBox status code.
2381	* @param pNode Which node to search for pszName in.
2382	* @param pszName Name of an integer value.
2383	* @param pGCPtr Where to store the value. Set to default on failure.
2384	* @param GCPtrDef The default value.
2385	*/
2386	VMMR3DECL(int) CFGMR3QueryGCPtrDef(PCFGMNODE pNode, const char *pszName, PRTGCPTR pGCPtr, RTGCPTR GCPtrDef)
2387	{
2388	uint64_t u64;
2389	int rc = CFGMR3QueryIntegerDef(pNode, pszName, &u64, GCPtrDef);
2390	if (RT_SUCCESS(rc))
2391	{
2392	RTGCPTR u = (RTGCPTR)u64;
2393	if (u64 == u)
2394	*pGCPtr = u;
2395	else
2396	rc = VERR_CFGM_INTEGER_TOO_BIG;
2397	}
2398	return rc;
2399	}
2400
2401
2402	/**
2403	* Query Guest Context unsigned pointer value.
2404	*
2405	* @returns VBox status code.
2406	* @param pNode Which node to search for pszName in.
2407	* @param pszName Name of an integer value.
2408	* @param pGCPtr Where to store the value.
2409	*/
2410	VMMR3DECL(int) CFGMR3QueryGCPtrU(PCFGMNODE pNode, const char *pszName, PRTGCUINTPTR pGCPtr)
2411	{
2412	uint64_t u64;
2413	int rc = CFGMR3QueryInteger(pNode, pszName, &u64);
2414	if (RT_SUCCESS(rc))
2415	{
2416	RTGCUINTPTR u = (RTGCUINTPTR)u64;
2417	if (u64 == u)
2418	*pGCPtr = u;
2419	else
2420	rc = VERR_CFGM_INTEGER_TOO_BIG;
2421	}
2422	return rc;
2423	}
2424
2425
2426	/**
2427	* Query Guest Context unsigned pointer value with default.
2428	*
2429	* @returns VBox status code.
2430	* @param pNode Which node to search for pszName in.
2431	* @param pszName Name of an integer value.
2432	* @param pGCPtr Where to store the value. Set to default on failure.
2433	* @param GCPtrDef The default value.
2434	*/
2435	VMMR3DECL(int) CFGMR3QueryGCPtrUDef(PCFGMNODE pNode, const char *pszName, PRTGCUINTPTR pGCPtr, RTGCUINTPTR GCPtrDef)
2436	{
2437	uint64_t u64;
2438	int rc = CFGMR3QueryIntegerDef(pNode, pszName, &u64, GCPtrDef);
2439	if (RT_SUCCESS(rc))
2440	{
2441	RTGCUINTPTR u = (RTGCUINTPTR)u64;
2442	if (u64 == u)
2443	*pGCPtr = u;
2444	else
2445	rc = VERR_CFGM_INTEGER_TOO_BIG;
2446	}
2447	return rc;
2448	}
2449
2450
2451	/**
2452	* Query Guest Context signed pointer value.
2453	*
2454	* @returns VBox status code.
2455	* @param pNode Which node to search for pszName in.
2456	* @param pszName Name of an integer value.
2457	* @param pGCPtr Where to store the value.
2458	*/
2459	VMMR3DECL(int) CFGMR3QueryGCPtrS(PCFGMNODE pNode, const char *pszName, PRTGCINTPTR pGCPtr)
2460	{
2461	uint64_t u64;
2462	int rc = CFGMR3QueryInteger(pNode, pszName, &u64);
2463	if (RT_SUCCESS(rc))
2464	{
2465	RTGCINTPTR u = (RTGCINTPTR)u64;
2466	if (u64 == (uint64_t)u)
2467	*pGCPtr = u;
2468	else
2469	rc = VERR_CFGM_INTEGER_TOO_BIG;
2470	}
2471	return rc;
2472	}
2473
2474
2475	/**
2476	* Query Guest Context signed pointer value with default.
2477	*
2478	* @returns VBox status code.
2479	* @param pNode Which node to search for pszName in.
2480	* @param pszName Name of an integer value.
2481	* @param pGCPtr Where to store the value. Set to default on failure.
2482	* @param GCPtrDef The default value.
2483	*/
2484	VMMR3DECL(int) CFGMR3QueryGCPtrSDef(PCFGMNODE pNode, const char *pszName, PRTGCINTPTR pGCPtr, RTGCINTPTR GCPtrDef)
2485	{
2486	uint64_t u64;
2487	int rc = CFGMR3QueryIntegerDef(pNode, pszName, &u64, GCPtrDef);
2488	if (RT_SUCCESS(rc))
2489	{
2490	RTGCINTPTR u = (RTGCINTPTR)u64;
2491	if (u64 == (uint64_t)u)
2492	*pGCPtr = u;
2493	else
2494	rc = VERR_CFGM_INTEGER_TOO_BIG;
2495	}
2496	return rc;
2497	}
2498
2499
2500	/**
2501	* Query zero terminated character value storing it in a
2502	* buffer allocated from the MM heap.
2503	*
2504	* @returns VBox status code.
2505	* @param pNode Which node to search for pszName in.
2506	* @param pszName Value name. This value must be of zero terminated character string type.
2507	* @param ppszString Where to store the string pointer.
2508	* Free this using MMR3HeapFree().
2509	*/
2510	VMMR3DECL(int) CFGMR3QueryStringAlloc(PCFGMNODE pNode, const char pszName, char *ppszString)
2511	{
2512	size_t cbString;
2513	int rc = CFGMR3QuerySize(pNode, pszName, &cbString);
2514	if (RT_SUCCESS(rc))
2515	{
2516	char pszString = (char )MMR3HeapAlloc(pNode->pVM, MM_TAG_CFGM_USER, cbString);
2517	if (pszString)
2518	{
2519	rc = CFGMR3QueryString(pNode, pszName, pszString, cbString);
2520	if (RT_SUCCESS(rc))
2521	*ppszString = pszString;
2522	else
2523	MMR3HeapFree(pszString);
2524	}
2525	else
2526	rc = VERR_NO_MEMORY;
2527	}
2528	return rc;
2529	}
2530
2531
2532	/**
2533	* Query zero terminated character value storing it in a
2534	* buffer allocated from the MM heap.
2535	*
2536	* @returns VBox status code.
2537	* @param pNode Which node to search for pszName in.
2538	* @param pszName Value name. This value must be of zero terminated character string type.
2539	* @param ppszString Where to store the string pointer. Not set on failure.
2540	* Free this using MMR3HeapFree().
2541	*/
2542	VMMR3DECL(int) CFGMR3QueryStringAllocDef(PCFGMNODE pNode, const char pszName, char ppszString, const char pszDef)
2543	{
2544	size_t cbString;
2545	int rc = CFGMR3QuerySize(pNode, pszName, &cbString);
2546	if (rc == VERR_CFGM_VALUE_NOT_FOUND \|\| rc == VERR_CFGM_NO_PARENT)
2547	{
2548	cbString = strlen(pszDef) + 1;
2549	rc = VINF_SUCCESS;
2550	}
2551	if (RT_SUCCESS(rc))
2552	{
2553	char pszString = (char )MMR3HeapAlloc(pNode->pVM, MM_TAG_CFGM_USER, cbString);
2554	if (pszString)
2555	{
2556	rc = CFGMR3QueryStringDef(pNode, pszName, pszString, cbString, pszDef);
2557	if (RT_SUCCESS(rc))
2558	*ppszString = pszString;
2559	else
2560	MMR3HeapFree(pszString);
2561	}
2562	else
2563	rc = VERR_NO_MEMORY;
2564	}
2565	return rc;
2566	}
2567
2568
2569	/**
2570	* Dumps the configuration (sub)tree to the release log.
2571	*
2572	* @param pRoot The root node of the dump.
2573	*/
2574	VMMR3DECL(void) CFGMR3Dump(PCFGMNODE pRoot)
2575	{
2576	LogRel(("*********************** CFGM dump ***********************\n"));
2577	cfgmR3Dump(pRoot, 0, DBGFR3InfoLogRelHlp());
2578	LogRel(("******************* End of CFGM dump ********************\n"));
2579	}
2580
2581
2582	/**
2583	* Info handler, internal version.
2584	*
2585	* @param pVM The VM handle.
2586	* @param pHlp Callback functions for doing output.
2587	* @param pszArgs Argument string. Optional and specific to the handler.
2588	*/
2589	static DECLCALLBACK(void) cfgmR3Info(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
2590	{
2591	/*
2592	* Figure where to start.
2593	*/
2594	PCFGMNODE pRoot = pVM->cfgm.s.pRoot;
2595	if (pszArgs && *pszArgs)
2596	{
2597	int rc = cfgmR3ResolveNode(pRoot, pszArgs, &pRoot);
2598	if (RT_FAILURE(rc))
2599	{
2600	pHlp->pfnPrintf(pHlp, "Failed to resolve CFGM path '%s', %Rrc", pszArgs, rc);
2601	return;
2602	}
2603	}
2604
2605	/*
2606	* Dump the specified tree.
2607	*/
2608	pHlp->pfnPrintf(pHlp, "pRoot=%p:{", pRoot);
2609	cfgmR3DumpPath(pRoot, pHlp);
2610	pHlp->pfnPrintf(pHlp, "}\n");
2611	cfgmR3Dump(pRoot, 0, pHlp);
2612	}
2613
2614
2615	/**
2616	* Recursivly prints a path name.
2617	*/
2618	static void cfgmR3DumpPath(PCFGMNODE pNode, PCDBGFINFOHLP pHlp)
2619	{
2620	if (pNode->pParent)
2621	cfgmR3DumpPath(pNode->pParent, pHlp);
2622	pHlp->pfnPrintf(pHlp, "%s/", pNode->szName);
2623	}
2624
2625
2626	/**
2627	* Dumps a branch of a tree.
2628	*/
2629	static void cfgmR3Dump(PCFGMNODE pRoot, unsigned iLevel, PCDBGFINFOHLP pHlp)
2630	{
2631	/*
2632	* Path.
2633	*/
2634	pHlp->pfnPrintf(pHlp, "[");
2635	cfgmR3DumpPath(pRoot, pHlp);
2636	pHlp->pfnPrintf(pHlp, "] (level %d)%s\n", iLevel, pRoot->fRestrictedRoot ? " (restricted root)" : "");
2637
2638	/*
2639	* Values.
2640	*/
2641	PCFGMLEAF pLeaf;
2642	size_t cchMax = 0;
2643	for (pLeaf = CFGMR3GetFirstValue(pRoot); pLeaf; pLeaf = CFGMR3GetNextValue(pLeaf))
2644	cchMax = RT_MAX(cchMax, pLeaf->cchName);
2645	for (pLeaf = CFGMR3GetFirstValue(pRoot); pLeaf; pLeaf = CFGMR3GetNextValue(pLeaf))
2646	{
2647	switch (CFGMR3GetValueType(pLeaf))
2648	{
2649	case CFGMVALUETYPE_INTEGER:
2650	pHlp->pfnPrintf(pHlp, " %-*s <integer> = %#018llx (%lld)\n", (int)cchMax, pLeaf->szName, pLeaf->Value.Integer.u64, pLeaf->Value.Integer.u64);
2651	break;
2652
2653	case CFGMVALUETYPE_STRING:
2654	pHlp->pfnPrintf(pHlp, " %-*s <string> = \"%s\" (cb=%zu)\n", (int)cchMax, pLeaf->szName, pLeaf->Value.String.psz, pLeaf->Value.String.cb);
2655	break;
2656
2657	case CFGMVALUETYPE_BYTES:
2658	pHlp->pfnPrintf(pHlp, " %-s <bytes> = \"%.Rhxs\" (cb=%zu)\n", (int)cchMax, pLeaf->szName, pLeaf->Value.Bytes.cb, pLeaf->Value.Bytes.pau8, pLeaf->Value.Bytes.cb);
2659	break;
2660
2661	default:
2662	AssertMsgFailed(("bad leaf!\n"));
2663	break;
2664	}
2665	}
2666	pHlp->pfnPrintf(pHlp, "\n");
2667
2668	/*
2669	* Children.
2670	*/
2671	for (PCFGMNODE pChild = CFGMR3GetFirstChild(pRoot); pChild; pChild = CFGMR3GetNextChild(pChild))
2672	{
2673	Assert(pChild->pNext != pChild);
2674	Assert(pChild->pPrev != pChild);
2675	Assert(pChild->pPrev != pChild->pNext \|\| !pChild->pPrev);
2676	Assert(pChild->pFirstChild != pChild);
2677	Assert(pChild->pParent != pChild);
2678	cfgmR3Dump(pChild, iLevel + 1, pHlp);
2679	}
2680	}
2681

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source: vbox/trunk/src/VBox/VMM/CFGM.cpp@ 24323

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